EP4482358A1 - Motorized functional fitting for a base of a box spring bed or of a platform bed, or for a slatted bed base - Google Patents

Abstract

The invention relates to a motorized functional fitting for a base of a box spring bed or of a platform bed, or for a slatted bed base, having the features of the preamble of claim 1. The invention also relates to a head- and back-supporting unit for a box spring bed or for a platform bed, and to a box spring bed, a platform bed or a slatted bed base.

Description

The invention relates to a motorized functional fitting for a bed frame of a box spring bed or a platform bed or for a framed slatted frame with the features of the preamble of claim 1. The The invention also relates to a head and back support unit for a box spring bed or for a platform bed and a box spring bed, a platform bed or a framed slatted frame.

A box spring bed comprises a bed frame with a bed frame with two frame side parts extending in a bed longitudinal axis and head and foot frame parts extending transversely between these at a head and foot end and a bed frame located in a lying plane between or above the Side panels extending center panel. At a head end of the center panel facing the head end of the bed frame, a head panel is arranged pivotable about a head panel pivot axis extending transversely to the longitudinal axis of the bed. Furthermore, a footplate is pivotable about a footplate pivot axis that also extends transversely to the longitudinal axis of the bed. The plate-shaped center plate, the

The top plate and the foot plate together form a bed surface for a mattress. Beds are referred to as platform beds that contain a number of platforms which can be adjusted in terms of their angular position relative to one another and are intended to support at least one mattress element. The mattress pad can be formed by one or more slatted frames. In the case of box spring beds, the platforms for supporting the mattress can each be designed as a plate.

A platform bed can comprise a bed frame with a bed frame, which has two frame side parts extending in a bed longitudinal axis and head and foot frame parts extending transversely between them. On a side facing the head end of the bed frame, a backrest platform is provided, which is arranged to be pivotable about a pivot axis extending transversely to the longitudinal axis of the bed. Furthermore, a legrest platform is often provided, which is arranged to be pivotable about a pivot axis that also extends transversely to the longitudinal axis of the bed. The swiveling platforms together form a bed surface for a mattress. If necessary, you can be supplemented by an interposed center platform that is non-pivoting.

A framed slatted frame is basically constructed like the bed frame described above, but it is an independently usable unit with several adjustable platforms, which can be placed on any bed frame with its rectangular frame, without the need for installations such as a motor drive, etc. are required on the bed frame.

The frame of the bedstead or slatted frame is made up of two parallel spaced along the Frame side parts extending along the longitudinal axis of the bed are formed, which are connected to one another at the head end and the foot end via a head frame part and a foot frame part to form a usually rectangular, closed frame that is placed on a frame, feet or the like, which spaces the frame from the floor. The mattress can be placed on the bed level formed jointly by the movable and immovable platforms.

A functional fitting is connected to the bed frame or slatted frame, in particular screwed, in order to be able to raise and lower the head platform and the foot platform by motor.

The functional fitting comprises at least one longitudinal beam which extends along a longitudinal beam axis and is designed for connection to the box spring bed, the bed frame or the slatted frame.

A stand-up frame is pivoted to the longitudinal beam at a pivot point. Finally, a linear drive is provided which extends and acts between the longitudinal beam and the uprighting frame and which converts a rotational movement of an electric motor into a translational movement of a lifting tube. The lifting tube is rotatably connected to the raising frame in such a way that the raising frame can be continuously transferred from a rest position lowered into a lying level into a standing position.

State of the art

The functional fitting is usually attached to the bed frame of the box spring bed and serves to hold the headboard and to transfer the footplate from the lowered rest position, in which it extends in a plane with the horizontal lying plane, into an upright position raised from this lying plane.

In the case of box-spring beds, the bed frame is formed from two frame side parts which extend parallel to one another along the longitudinal axis of the bed and which are connected to one another at the head end and the foot end via a head frame part and a foot frame part to form a frame which is usually closed rectangular either placed directly on the floor or placed on drawers or a frame, feet or the like, which space the frame from the floor. The box spring mattress can be placed on the lying surface formed by the middle plate, the head plate and the foot plate.

The functional fitting is connected to the bed frame, in particular screwed, in order to move the head plate and the foot plate by motor.

The longitudinal beam extends from the head frame part to the foot frame part, ie it is attached to the bed frame at the upper end and at the lower end of the bed frame. The longitudinal member also accommodates a double drive in the middle, the linear elements of which, actuated by an electric motor, actuate a stand for pivoting the head part and a stand for pivoting the foot part. In the prior art, the linear drives are designed as double drives, which sit centrally on the longitudinal beam and where the..double drives are attached to a rear end with the longitudinal beam and with a respective one, through which the outer tube is stationary in relation to longitudinally displaceable linear element acts on the head plate erecting frame and on the foot plate erecting frame, ie are articulated. In the prior art, the longitudinal beam thus extends essentially along the entire longitudinal axis of the bed, is therefore designed to be as long as the length of the bed frame and absorbs the essential forces from the raising frames and from the linear drives.

Consequently, the longitudinal member must be of correspondingly stable design in order to be able to withstand these forces, which is preferably achieved by designing the longitudinal member as a rectangular or square profile which has a particularly good equatorial area moment of inertia against bending stress.

A functional fitting for a box spring bed is known, for example, from DE 102016 116 256 A1. The longitudinal support disclosed in this document is designed as a continuous profile rail extending from the head end to the foot end of the bed frame. The erecting frames, sometimes also referred to as erecting levers, are rotatably articulated with their rear end on the longitudinal beam and can be pivoted in relation to the longitudinal beam via the central double drive from the lowered rest position, which extends in the horizontal direction, into the raised position, i.e. at an angle with the longitudinal axis of the beam lifting position enclosing the longitudinal member. The lifting position is usually to be adjusted in a range between 0° and approximately 45° with the longitudinal axis of the carrier.

These functional fittings have the disadvantage that the length of the bed, the length of the longitudinal beam and its Profile rail determined. This means that different profile rails or different functional fittings with different longitudinal beams must be kept available for each bed length and each type of bed. This requires a not inconsiderable number of variants, because there are no standards for box spring beds. This increases storage costs significantly.

The transport of the functional fittings is also problematic because these are usually significantly longer than the usual pallet dimensions, which normally have a size of 800 x 120 cm. In this respect, special dimensions always have to be provided in storage rooms, which is expensive.

Another functional fitting is known, for example, from DE 20 2020 107 053 U1. It comprises at least one longitudinal beam which extends along a longitudinal axis of the beam and is designed to be connected to the bed frame. A stand-up frame is pivoted to the longitudinal beam at a pivot point. Finally, a linear drive is provided which extends and acts between the longitudinal beam and the uprighting frame and which converts a rotational movement of an electric motor into a translational movement of a lifting tube. The lifting tube is rotatably connected to the uprighting frame in such a way that the uprighting frame can be transferred steplessly from a rest position lowered into a lying level into an upright position. The disadvantage of using a bed equipped with such a functional fitting is that when the backrest is in the upright position, it becomes difficult to carry out activities such as sedentary work. B. when reading a book, a neck roll or the like is still necessary to support the head, which must be tilted further forward than in these activities the course of the back. The known functional fitting does not have a head area that can be adjusted separately from the backrest.

assignment

The invention is therefore based on the object/technical problem of at least partially avoiding the disadvantages that occur with generic functional fittings and in particular of providing a particularly variable, easy-to-transport, but at the same time very stable motorized functional fitting.

In particular, the invention is based on the object of providing a motorized functional fitting that enables an ergonomic head position in the upright position of the backrest and that is suitable for all possible box spring beds, platform beds or framed slatted frames, especially for those that are provided with several slatted frame elements as a mattress pad are, is suitable.

invention

This problem is already solved by a motorized functional fitting with the features of claim 1. Preferred but not mandatory features are reproduced in the subordinate dependent claims.

A basic idea of the invention is based on a longitudinal beam for each adjustable unit at the head or foot end, the longitudinal beam being mountable in the middle of the bed frame. In order to nevertheless achieve a wide-acting support for the head, back, leg and footrests, a symmetrical, V-shaped or Y-shaped stand-up frame is provided, which is articulated with the narrow side on the longitudinal beam and is divided on both sides outwards into two upper arms, which are spread outwards. The upper arms are used to connect or contact the head, back, leg and footrests. Due to the functional fitting, which is mirror-symmetrical and designed starting from the central axis of the bed frame, it is not necessary to connect the functional fitting in the vicinity of the side frame parts or even directly with them. This means that the same functional fitting can be used with bed frames of different widths.

The particular advantage of the invention is that, despite the arrangement of functional fittings and drive concentrated on the center of the bed frame, provision is made for providing a headrest and a backrest that can be raised in a defined sequence of movements using only one drive means. At the end of the straightening movement, it is desirable that the headrest should be more inclined than the backrest in relation to the lying plane.

For this purpose, two headrest bearing elements are provided for the headrest or the headrest platform, which are each connected to the two upper arms of the stand-up frame via a link lever.

With regard to the control of the back support of the functional fitting for a box spring bed, the invention provides two advantageous embodiments.

According to a first embodiment, which is provided for both a box spring bed and a platform bed or a slatted frame, a synchronous A righting movement is achieved in which not only the backrest but also the headrest is raised at the beginning of the righting movement after switching on the drive. The more the uprighting angle of the backrest increases, the more the uprighting angle of the headrest also increases disproportionately. In order to achieve this movement, a further link lever is articulated on the upper arms of the erection frame, which is connected to a back support bearing element which is provided for attachment to the back support. The additional steering levers are attached to the uprighting frame with their coupling joints approximately in the middle between the steering levers for the headrest at the end of the upper arms and the traverse.

According to a second embodiment, which is particularly suitable for a box-spring bed, a leading headrest movement is achieved, in which initially only the headrest is raised until the desired relative angular position between the headrest and backrest has been set, before then also the back support straightens up, whereby the relative angular position is maintained. As in the first embodiment, the end link levers serve to raise the headrest. However, there is no forced coupling with the back support. In order to erect them, one or more rollers are provided on the erection frame, the diameter and position of which is selected so that they only contact the back of the backrest after the desired relative angular position between the headrest and backrest has been established. Then the uprighting frame pushes up the backrest via the rollers, whereby the angle of the headrest to the backrest remains the same. The longitudinal member of the functional fitting preferably comprises a front end—outside in the installed position—which is designed for attachment to the head frame part or the foot frame part. Furthermore, the longitudinal member preferably comprises an inner end face opposite the outer end face, installed in the bed frame in the installed position, and designed for attachment to a center plate or to a center platform. Furthermore, the drive can be arranged laterally next to the longitudinal beam, that is to say fastened to it, and the erecting frame can be pivoted to the longitudinal beam at a fastening end which is lower in the installed position. This means that the righting frame can be rotatably pivoted at its outermost end possible on the longitudinal beam in order to obtain the largest possible lever arm. Finally, the relatively movable lifting tube of the linear drive can rotatably engage the erecting frame at a pivot end spaced along a longitudinal axis of the erecting frame from this attachment end. This design results in a particularly efficient power development of the lifting tube on the erection frame with a particularly long lever arm, so that linear drives with about 1/3 less power can be used in relation to existing functional fittings of this type.

According to the invention, the longitudinal beam can be designed in such a way that the outer end in the installed position, directed towards the bed frame, can be attached either directly or indirectly to the bed frame at the head or foot end and at an opposite end of this for attachment to the middle part or be formed of the center platform.

The linear motor, which is preferably rotatably articulated with its lower motor end on the outer front end in the installed position, and the erecting frame which is rotatably aligned with its lower attachment end towards the inner front end preferably forms an approximately isosceles triangle in the lifting position together with the longitudinal beam, although this is not mandatory for the mode of operation of the invention.

The pivotable articulation preferably takes place via fork heads, which are arranged in particular on the linear motor at the rear end of the motor and the front lifting tube, or via profiles which engage rotatably on an axis arranged in the longitudinal member.

According to the invention, the functional fitting can be constructed in such a way that the lower motor end of the linear drive is aligned with the outer front end of the longitudinal member in the installed position and the lower fastening end of the erecting frame is rotatably articulated and aligned with the inner front end of the functional fitting.

The lifting tube of the linear drive, which is preferably accommodated in a relatively movable manner in the housing of the linear drive, can be pivoted as far as possible at the upper end of the erecting frame, so that a particularly efficient power development of the toggle lever formed in this way is realized, but the functional fitting is at the same time in the separated - builds up very flat in the lowered rest position.

In the case of a bed with a separately movable head and backrest or head and backrest platform or leg and footrest, a divided longitudinal beam is provided which, in the installed position, is on the outside facing the head end or foot end of the bed frame at the front end on the bed frame is screwed and with one of the Center plate or the center platform facing end is attached to this center plate or center platform.

Preferably, this attachment to the center plate or the center platform is carried out by angle profiles attached to the side of the longitudinal member, which are attached to the longitudinal member with a vertical leg extending in the installed position and with a horizontal leg extending at right angles to this vertical leg are screwed to the center plate or center platform on the underside. At the same time, these angle profiles, which are preferably made of sheet steel, have a stabilizing effect on the center plate or center platform in order to prevent sagging when a person sits on it.

A particularly harmonious power development and thus a particularly low output of the electric motor of the linear drive is required when a rear end of the motor of the linear drive acts on the outer end of the longitudinal beam and the attachment end of the erecting frame acts on the inner end of the longitudinal beam, in particular rotatably is hinged. The greatest power of the electric motor is required for raising the erection frame from the lowered rest position, because the vertical force for lifting is the lowest here. Once these first 10 to 15 percent of the adjustment path have been overcome, the electric motor is only slightly stressed.

For the lowest possible power supply of the linear drive, it is advantageous if the end of the linear drive with the housing and the electric motor is pivotably mounted as low as possible on the longitudinal beam. An additional holding block can therefore be provided, which is provided on the inside of a head and foot side part that extends vertically in the installed position, to which the rear end of the linear drive can be fastened or is fastened. This holding block is sometimes also referred to as a fastening beam, fastening block, crossbeam or crossbar, which is transverse to the longitudinal axis of the bed, preferably on the inside of the head or foot frame part at its lower ends, terminating with the lower edge of the frame side part between the frame side parts is arranged to extend and forms a support edge offset inwards from the bed frame, to which the front ends of the functional fitting can be fastened.

An angle profile is preferably rotatably fastened to the rear end via a rear fork head, which can be placed on this fastening beam or fastening block and screwed to it.

Such fastening beams or fastening blocks are preferably provided both on the head side part and on the foot side part in order to realize the lowest possible force application point of the rear fastening end of the linear drive, in particular the rear fork head. A further optimization of the force curve is realized in that the front end of the linear drive, in particular the front end of the relatively movable lifting tube, acts on the lifting frame as high as possible, i.e. a point which is as far away as possible from the lower fastening end of the lifting frame on the longitudinal beam. With this configuration of the functional fitting, the highest possible gradient of the linear drive is already realized in the lowered rest position, so that in Compared to the prior art, a lower power of the electric motor of the linear drive is required.

In the particularly preferred embodiment, the front end of the linear drive, in particular the relatively movable lifting tube, acts on a crossbar which extends between two profile sections or profile supports of the erecting frame which widen in the manner of a fork. This enables the pivot point of the rear end of the linear motor to be set particularly low and thus a relatively flat construction of the bed or bed frame of approx. 7-11 mm, which means that drawers or substructures can easily be arranged under the actual bed frame without noticeably increasing the structure of the overall system.

An advantageous embodiment of the invention, which claims protection per se, comprises a separate headrest and backrest unit for a bed frame of a box spring bed or for a bed frame of a platform bed.

According to the invention, the longitudinal beam with the linear drive and the raising linkage represents a separate functional assembly that can be attached to a bed frame or a bed frame that is mounted with a seat plate. This means that the functional fitting according to the invention can be transported, packaged and handled much better for professionals and end users compared to the prior art.

In addition, the invention also includes a piece of furniture for lying down in the form of a box spring bed, at least comprising a bed frame with two frame side parts extending in a longitudinal axis of the bed and in a width of the bed a head frame part and a foot frame part extending transversely at the head end and a foot end, a center plate extending in a lying plane between the side parts, a back support pivotably connected thereto and a head support pivotally connected to the back support. According to the invention, this box spring bed has one of the two headrest and backrest units described above, through which a controlled movement of the headrest and the backrest is achieved with an adjustment by only one linear motor.

Preferred embodiments include that the bed frame also comprises a leg and footrest unit, which is divided into a thigh rest and a foot and lower leg rest, which are pivotally connected to one another about a further pivot axis. In order to realize a relative movement of the thigh support and the foot and lower leg support in relation to one another during the adjustment, the uprighting frame for the foot and leg support unit is preferably screwed to the foot and lower leg support by means of angle profiles.

Both for a box spring bed and for a platform bed, two headrest bearing elements can be provided in the functional fitting for the headrest or the headrest platform so that the headrest or the headrest platform is more inclined relative to the lying plane at the end of the uprighting movement than the backrest to be provided, which are each connected via a link lever to the arms of the erection frame.

Regarding the controls of the backrest or the backrest platform and the headrest or the Headrest platform, the functional fitting of the invention provides that a synchronous uprighting movement of both supports is achieved by a common drive. At the beginning of the righting movement after switching on the drive, not only the backrest or the backrest platform is raised, but also the headrest or the headrest platform. The more the uprighting angle of the backrest or the backrest platform increases, the more the uprighting angle of the headrest or the headrest platform increases disproportionately.

Two basic functional principles can be implemented alternatively:

In a first embodiment, both the backrest or the backrest platform and the headrest or the headrest platform are each articulated via a pair of link levers which are connected to the arms of the jointly used uprighting frame. The desired movement can be controlled particularly finely by placing the coupling joints of the steering levers on the arms and by matching the lengths of the two pairs of steering levers. The backrest or the backrest platform and the headrest or the headrest platform are each supported directly on the lifting frame.

In a second embodiment, only the headrest or the headrest platform is articulated from the stand-up frame via a pair of connecting rods. The backrest or the backrest platform is formed between a backrest joint formed on the frame and one formed between the backrest or the backrest platform and the headrest or the headrest platform Coupled headrest joint. There are therefore no degrees of freedom, so that the backrest or the backrest platform follows the movement that is imposed on it by the articulation of the headrest or the headrest platform. In this embodiment, due to the lack of direct support on the erecting frame, greater tensile forces are exerted on the backrest joint and the headrest joint than in the first embodiment. It is advantageous that the stand-up frame can be placed closer to the back of the backrests and headrests/platforms in the rest position, since there is no second pair of levers. This embodiment is therefore particularly suitable for lighter mattresses and/or flatter units such as, in particular, slatted frames that are completely enclosed in a frame.

In particular when used in a platform bed, the functional fitting can each have a longitudinal member which can be mounted between a cross member in the middle of the frame and in the area of the head end. Seen from the side, it is positioned approximately in the middle between the side parts of the frame. In order to nevertheless achieve a wide-acting support for the head, back, leg and footrests, a symmetrical, V- or Y-shaped stand-up frame is provided, which is articulated with the narrow side on the longitudinal beam and is divided into two arms , which are splayed outwards. The arms are used to connect or contact the head, back, leg and footrests. Due to the functional fitting, which is mirror-symmetrical and designed starting from the central axis of the bed frame, it is not necessary to connect the functional fitting in the vicinity of the side frame parts or even directly with them. So the same can Functional fitting can be used with several bed frames of different widths.

The linear motor, which is preferably rotatably articulated with its lower motor end on the outer front end in the installed position, and the erection frame, which is preferably rotatably aligned with its lower fastening end towards the inner front end, thus preferably form an approximately isosceles triangle in the lifting position together with the longitudinal beam, although this is important for the mode of operation the invention is not mandatory.

The pivotable articulation preferably takes place via fork heads, which are arranged in particular on the linear motor at the rear end of the motor and the front lifting tube, or via profiles which engage rotatably on an axis arranged in the longitudinal member.

According to the invention, the functional fitting can therefore be constructed in such a way that the lower motor end of the linear drive is aligned with the outer front end of the longitudinal member in the installed position and the lower fastening end of the erecting frame is rotatably articulated and aligned with the inner front end of the functional fitting.

The lifting tube of the linear drive, which is preferably accommodated in a relatively movable manner in the housing of the linear drive, can be pivoted as far as possible at the upper end of the erecting frame, so that a particularly efficient development of force is realized, but at the same time the functional fitting is very flat in the lowered rest position - builds. A bed with a head and backrest platform or head and backrest or leg and footrest that can be moved separately is therefore a divided longitudinal beam, which is screwed to the bed frame with its front end facing the head end or foot end of the bed frame on the outside in the installed position and is fastened to this central platform or central plate with a front end facing the central platform or a central plate.

This attachment to the central platform or central plate is preferably carried out by means of angle profiles attached to the side of the longitudinal member, which are attached to the side of the longitudinal member with a vertical leg extending in the installed position and underneath with a horizontal leg extending at right angles to this vertical leg - bolted to the center platform or center plate. At the same time, these angle profiles, which are preferably made of sheet steel, have a stabilizing effect on the central platform or the central plate in order to prevent sagging when a person sits down.

A particularly harmonious power development and thus a particularly low output of the electric motor of the linear drive is required when a rear end of the motor of the linear drive acts on the outer end of the longitudinal beam and the attachment end of the erecting frame acts on the inner end of the longitudinal beam, in particular rotatably is hinged. The greatest power of the electric motor is required for lifting the erection frame from the lowered rest position, because the vertical force for lifting is the lowest here. Once these first 10 to 15 percent of the adjustment path have been overcome, the electric motor is only slightly stressed. In order to provide as little power as possible from the linear drive, it is advantageous if the end of the linear drive with the housing and the electric motor is pivotably mounted as low as possible on the longitudinal beam.

Therefore, an additional holding block can be provided on the inside of the head and foot side part, which extends vertically in the installed position, to which the rear end of the linear drive can be fastened or is fastened. This holding block is sometimes also referred to as a fastening beam, fastening block, crossbeam or crossbar, which is transverse to the longitudinal axis of the bed, preferably terminating on the inside of the head or foot frame part at its lower ends, with the lower edge of the frame side part between is arranged to extend between the frame side parts and forms a support edge which is offset inwards from the bed frame and to which the front ends of the functional fitting can be fastened.

An angle profile is preferably rotatably fastened to the rear end via a rear fork head, which can be placed on this fastening beam or fastening block and screwed to it.

Such fastening beams or fastening blocks are preferably provided both on the head side part and on the foot side part in order to realize the lowest possible force application point of the rear fastening end of the linear drive, in particular the rear fork head. A further optimization of the force curve is realized in that the front end of the linear drive, in particular the front end of the relatively movable lifting tube as far up as possible acts on the erecting frame, ie a point which is as far away as possible from the lower fastening end of the erecting frame on the longitudinal beam. This design of the functional fitting enables the linear drive to climb as high as possible even in the lowered rest position, so that the electric motor of the linear drive requires less power than the prior art.

In the particularly preferred embodiment, the front end of the linear drive, in particular the relatively movable lifting tube, acts on a crossbar which extends between two profile sections or profile supports of the erecting frame which widen in the manner of a fork. This enables the pivot point of the rear end of the linear motor to be set particularly low and thus a relatively flat construction of the bed or bed frame of approx. 7-11 mm, which means that drawers or substructures can easily be arranged under the actual bed frame without noticeably increasing the structure of the overall system.

According to the invention, the longitudinal beam with the linear drive and the raising linkage thus represents a separate functional assembly that can be attached to the base frame or to the mounted bed frame with the seat platform. This means that the functional fitting according to the invention can be transported, packaged and handled much better for professionals and end users compared to the prior art.

A functional head and backrest unit that can be installed as a unit in a bed frame of a platform bed with a frame can be created by supplementing the functional fitting with a backrest joint a backrest platform to be articulated to the frame and to which is attached a backrest bearing element for the backrest linkage, and a headrest platform articulated to the backrest platform via a headrest joint and to which the headrest bearing element for the headrest linkage is attached.

An advantageous embodiment of the head and backrest unit provides that the headrest platform has at least two parallel headrest side frame elements and a headrest subframe, which connects them and to which the headrest bearing elements for the headrest steering levers are attached. At the same time, the backrest platform is composed of at least two parallel backrest side frame elements and at least one connecting backrest subframe, on which the backrest bearing elements for the backrest steering levers are attached to the backrest subframe of the headrest platform. The beams are stiffening crossbeams within the pivoting platforms. The resilient slats of the slatted frame provided for the mattress can thus be mounted flexibly or floating on the respective side frame elements, since they do not have to absorb any lateral forces.

The greater inclination of the headrest compared to the backrest is achieved in the headrest and backrest unit in particular in that the headrest steering lever is longer than the backrest steering lever and that when the lifting frame is in the lowered idle state, the longitudinal distance x _s measured between the coupling joints on the headrest platform and on the backrest platform is smaller than the distance X _A between the coupling joints on the upper arms of the stand-up frame.

In addition, the invention also includes a piece of furniture in the form of a platform bed, at least comprising a bed frame with two parallel frame side parts extending in a longitudinal axis of the bed and a head frame part and foot frame part extending transversely in a width of the bed at a head end and a foot end. According to the invention, this platform bed has one of the two headrest and backrest units described above, through which a controlled movement of the headrest platform and the backrest platform is achieved with an adjustment by only one linear motor.

Particularly preferably, an additional center platform extending in a lying plane between the frame side parts is provided, with the backrest platform being connected to the center platform via a backrest joint.

It is also possible that the frame has at least one cross member extending between the frame side parts and the back support platform is connected to the cross member via a back support joint.

A head and backrest unit for a slatted frame that functions as a unit is created by connecting the functional fitting to a backrest platform to be connected to the frame in an articulated manner via a backrest joint. and with a headrest platform articulated to the backrest platform via a headrest joint which the headrest bearing elements for the headrest steering lever are attached.

With the inclusion of such a head and backrest unit and a frame that includes two parallel frame side parts and these connecting head and foot frame parts, a ready-to-connect slatted frame can be created that only needs to be placed on a bed frame.

In this case, the frame can also comprise a central platform which extends in a lying plane between the frame side parts and has slats which are mounted stationarily on the frame, that is to say are not guided in a pivoting manner. The center platform creates a central support for a mattress that is placed on top, which is partially raised via the head and backrest unit and a motorized leg and footrest unit that may also be present. The area of the central platform represents a knidk zone for the mattress.

In preferred embodiments, the bed frame or slatted frame also includes a leg and footrest unit, which is divided into a thigh support platform and a foot and lower leg support platform, which are pivotally connected to one another about a further pivot axis.

Further features and advantages of the present invention become clear based on the following figure description of preferred exemplary embodiments with reference to the accompanying figures. Directional terminology such as "top", "bottom", "front", "back", "front", "rear", etc. are used in reference to the orientation in the figures described. Because components of embodiments are positioned in a number of different orientations may, the directional terminology is used for purposes of illustration and is in no way limiting. It is understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description is not to be taken in a limiting sense.

Within the scope of this description, the terms “connected”, “connected” and “integrated” are used to describe both a direct and an indirect connection, a direct or indirect connection and a direct or indirect integration.

In the figures, identical or similar elements are provided with identical reference symbols, insofar as this is appropriate. The representations in the figures are essentially to scale. However, in order to illustrate details, certain areas may be exaggerated, which would be apparent to those skilled in the art. In addition, the drawings may be simplified for the sake of simplicity and do not necessarily include every detail that may be present in the practical embodiment.

Unless otherwise specified, the indefinite article and the definite article do not refer only to a single component, but are to be understood as "at least one". The terminology includes the aforementioned words, modifications thereof and similar meanings. Furthermore, for those skilled in the art understand that the terms "about", "substantially", and "similar" terms in connection with the dimensions and a property of a component of the invention the described dimension and property as describe strict boundary and/or parameters and do not exclude minor variations thereof that are functionally similar. At least parts of the description with numerical parameters also include modifications of these parameters according to the mathematical and manufacturing principles of the prior art, for example rounding, deviations and other systematic errors, manufacturing tolerances, etc.

Finally, if there are several identical components or elements, only one is provided with a reference number for reasons of clarity.

All features of the exemplary embodiments described below are also disclosed independently of one another and generally within the scope of the invention. Show it:

FIG. 1 shows an isometric view of a bed frame with a head and back support unit according to a first embodiment in the rest position and on a foot and leg support unit in the upright position;

FIG. 2 shows an enlarged representation of the head part area from FIG. 1;

FIG. 3 is a side sectional view of the bed frame with the head and back support unit in the rest position according to FIGS. 1 and 2;

FIG. 4 shows a side sectional view of the bed frame in an intermediate position; FIG. 5 shows a schematic functional view of the coupling mechanism formed by the functional fitting at the head end;

FIG. 6 shows a detail of the head and backrest unit in an isometric view;

FIG. 7 shows a detail of the uprighting frame of the head and back support unit in an isometric view;

FIG. 8 shows a side sectional view of the bed frame in the upright position;

FIG. 9 shows the head and backrest unit in the upright position in an enlarged isometric view of the head part area;

FIG. 10 shows an isometric view of a bed frame with a head and back support unit according to a second embodiment in the rest position and on a foot and leg support unit in the upright position;

FIG. 11 is a side sectional view of the bed frame with the head and back support unit in the rest position according to FIG. 10;

Figure 12 is a side sectional view of the bed frame with the head and back support assembly in a first intermediate position;

Figure 13 is a side sectional view of the bed frame with the head and back support assembly in a second intermediate position; Figure 14 is a side sectional view of the bed frame with the head and back support unit in an upright position.

FIG. 15 shows an isometric view of a bed frame with a head and back support unit with a functional fitting according to a first embodiment and a foot and leg support unit;

FIG. 16 details of an isometric view of the back of the bed frame according to FIG. 1;

FIG. 17 shows a schematic functional view of the coupling mechanism formed by the functional fitting at the head end;

FIG. 18 shows a detail of the head and backrest unit in an isometric view;

FIG. 19 shows a detail of the uprighting frame of the head and back support unit in an isometric view;

FIG. 20 details of an isometric view of the rear side of a framed slatted frame with a second embodiment of a functional fitting;

FIG. 21 parts of the framed slatted frame according to FIG. 20 in an isometric view obliquely from the front;

FIG. 22 shows the framed slatted frame according to FIG. 20 in the rest position in a side view; FIG. 23 shows the framed slatted frame according to FIG. 20 in the rest position, viewed from below and

FIG. 24 shows an enlarged detail of the illustration in FIG. 16.

FIG. 1 shows a bed frame 100 for a bed, as a box spring bed, which is provided with a first embodiment of a functional fitting 10 designed according to the invention for a head and footrest unit.

The bed frame 100 comprises two functional fittings 10, 70 which are arranged in alignment on a central longitudinal axis of a bed frame 50 and are mounted inside the bed frame 50. The bed frame 50 comprises two frame side parts 51, 52 extending parallel to one another as well as a head frame part 51 connecting the frame side parts 51, 52 at a head end and a foot frame part 53 at the foot end, whereby a circumferentially closed, rectangular bed frame 50 is formed.

On top of the bed frame 50, approximately in the middle, is fixed a center panel 55 which extends transversely between the frame side members 51,52. The upper side of the center panel 55 defines a sleeping plane of the bed frame 100. A back support joint 31 is formed on the center panel 55 via two spaced apart hinges arranged at the edges, via which a back support 32 of a head and back support unit 30 is connected to the center panel 55 connected is.

On the other side of the center panel 55, facing the foot end, form two spaced apart hinges Legrest base joint 61 via which a foot and legrest unit 60 is pivotally attached to center plate 55 . The middle plate 55, the head and backrest unit 30 and the foot and leg rest unit 60 are shown partially transparent in this and the following figures, but are in practice designed as wooden panels on which z. B. rests a mattress part.

The head and back support unit 30 and the foot and leg support unit 60 each contain support plates which are each divided into two for even more comfortable adaptation to the human anatomy.

The head and backrest unit 30 is divided into a backrest 32, which is connected to the middle plate 55 via the backrest hinge 31, and a shorter headrest 34, which is arranged facing away from the middle plate 55 and via a headrest hinge 33 to the backrest 32 is connected.

The foot and leg support unit 60 is divided into a short thigh support plate 62, which faces the center plate 55 and is connected to it via the leg rest base joint 61, and a longer foot and lower leg support 64, which faces away from the center plate 55 . The thigh support 62 and the foot and lower leg support 64 are pivotably connected to one another via a foot and lower leg support joint 63 . In Figure 1, the head and backrest assembly 30 is in a rest position in which the backrest 32 and associated headrest 34 are fully lowered. In the rest position, the backrest 32 and the headrest 34 parallel to the center plate 55 and together with the center plate 55 define a lying plane. The foot and leg support unit 60, on the other hand, is in FIG. 1 in a raised and angled position above the lying plane.

Each functional fitting 10, 70 comprises a longitudinal beam 11, 71 designed as a rectangular steel profile, which is mainly made of painted steel and extends centrally under the bed frame 50 in the longitudinal axis of the bed. The longitudinal beam 11 is connected to the head frame part 51 via a mounting bracket 11.1. The longitudinal beam 71 is attached to a cross beam which is located behind the foot frame part 53 . At the respective inner front end of the longitudinal beams 11, 71, angle profiles 11.1 are fastened on both sides, each extending transversely to the longitudinal axis, the inner legs of which are fastened laterally to the longitudinal beams 11, 71. They have horizontal assembly legs, which extend transversely to the longitudinal axis of the longitudinal beams 11, 71 and can be screwed to the underside of the center plate 55 in the installed position, in order to thus connect the functional fittings 10, 70 on the one hand to the bed frame 50 on the inside via an angle profile 11.2 connect and at the same time secure the middle plate 55 against bending in the middle, for which purpose the angle profiles 11.1 are preferably designed as steel profiles. For reasons of stability, the functional fittings 10, 70 are constructed from angled or drawn steel profiles.

A motor base bearing 22 is arranged at the outer end of the functional fittings 10, 70, on which the respective rear end of a linear drive 21, 75 is pivotably mounted. The linear drives 21, 75 each comprise a lifting tube whose length can be changed by an electric motor drive. The Motor base bearing 22 is arranged as close as possible to the outer and lower end of the longitudinal member 20, so that the angle at which the linear drive acts on the uprighting frame 12 is as large as possible and the force required for the uprighting movement of the head and backrest unit 30 is increased by extension of the effectively effective lever arm decreases.

Each erecting frame 12, 72 is formed by two arms connected to one another, each of which has a lower fastening end for lateral articulation on the respective longitudinal beam 11, 71, i.e. enclosing it on both sides with an axis arranged in between, and extending in the longitudinal direction - extending parallel to each other on both sides of the longitudinal member 11, 71, extending from this lower attachment end, transition in the longitudinal direction first into a widened area, in which the distance to the profile angles widens, and at their free upper end merge again into end sections which extend parallel to one another and are referred to as upper arms 13 .

The design and function of the two functional fittings 10, 70 for the head and for the foot side is largely identical with regard to the features described up to this point. Both functional fittings 10, 70 are designed not only to raise the two separate and articulated support plates 32, 34, 62, 64 with just one motorized linear drive, but to bring them into a position in which the back support 32 and the The headrest 34 or the thigh support 62 and the foot and lower leg support 64 are aligned at a certain angle to one another and thus enable a comfortable posture for the person lying on the bed. Since the functional fittings 10, 70 are mirror-symmetrical in relation to the longitudinal beams 11, 71 and the forces on the supports 32, 34, 62, 64 can be well absorbed on the wide erecting frames 12, 72, stable support is achieved Without parts of the functional fittings having to be arranged directly on the frame side parts 52, 54. Rather, there is enough free space between the upright frames 12, 72 and the frame side parts 52, 54, so that narrower or wider bed frames can also be equipped with the same functional fittings. The bed frame 50 can be dismantled in a known manner for moving and transport. The removed functional fitting 10, 70 with the longitudinal member 11, 71 then has small dimensions in width and length and a small depth and can be easily stowed away.

The difference between the head and back support unit 30 on the one hand and the foot and leg support unit 60 on the other hand is the design and function of the respective uprighting frame 12, 72. If the uprighting angle of the back support 32 and the thigh support 62 is defined for center plate 55 as positive and relates it to the lying plane defined by the center plate 55, then at least in the end position of the upright position the headrest 34 should assume a positive angle relative to the backrest 32, i.e. the headrest 3 should be more inclined as the back support. On the other hand, when the foot and leg support unit 60 is in the upright position, a negative angle, ie a lowered position, should be set between the thigh support 62 and the foot and lower leg support 64 . This requires different designs of the functional fittings 10, 70. The functional fitting 70 for the foot and legrest unit 60 is of simple design. The stand-up frame 72 is connected in an articulated manner to the longitudinal beam 71 on the one hand and to a mounting bracket on the underside of the foot and lower leg support 64 on the other hand. The linear drive 75, which is articulated on the one hand with a traverse on the erecting frame 70 and on the other hand on the longitudinal beam 71, causes the erecting frame 70 to be increasingly pivoted upwards when the motorized linear drive 75 is actuated and lifted in relation to the center plate 55.

The joint 65 on the underside of the foot and lower leg support 64 is, seen in a side view, moved on a path which is due to the constant length between the joints of the erecting frame 72 and the constant length between the Joints 61, 63 and on the other hand determined by the variable length of the lifting tube on the linear drive 75. As a result of this restraint, the foot and lower leg support 64 is not only raised, but also shifted in the longitudinal direction of the bed frame 100 toward the center panel 55 . The thigh support 62 coupled in between is quickly transferred to a steep position, not least because of its short length, while the foot and lower leg support 64 remains in the rest position approximately parallel to the lying level during the movement into the upright position and at the end the movement lowers a little in the direction of the foot frame part 53.

The stand-up frame 12 on the head and backrest unit 30 is constructed similarly to the Raising frame 72 for the foot part.

For the headrest 34, however, it is to be achieved that it in no case assumes a negative angle relative to the backrest 32 in all phases of the movement of the head and backrest unit 30, ie it does not tilt backwards. Rather, the headrest 34 should be inclined more towards the center of the bed frame 100 than the backrest 32 to which it is connected, at least in the end position of the upright position of the backrest 32 .

For this purpose, the functional fitting 10 for the head and backrest unit 30 is specially designed, as is explained using the enlarged view of the head area in FIG.

As already described, the erecting frame 12 is formed by two upper arms 13 connected to one another by a traverse 14 , which emerge from lower arms that each have a lower fastening end for lateral articulation on an erecting frame base joint 15 on the longitudinal beam 11 . The forearms extend in the longitudinal direction from the base joint 15 of the uprighting frame, initially parallel to one another and run on both sides close to the longitudinal beam 11. They then, viewed further in the longitudinal direction, initially transition into a widened area in which the distance to the longitudinal beam increases 11 increased, and at their respective free end again merge into end sections which extend parallel to one another and which form the upper arms 13 . The upper arms 13 are at a clear distance from the side surfaces of the longitudinal member 11. The widening of the upper arms 13 must lead to such a lateral offset relative to the side surfaces of the longitudinal member 11 that in the figure 1 and 2 shown Rest position of the linear drive 21 can be fully accommodated in the free space between the longitudinal beam 11 and the left upper arm 13 of the raising frame 12.

In the illustrated embodiment of a functional fitting 10, an additional backrest steering lever 16 is provided on each of the two upper arms 13, which is articulated both with the upper arm 13 and with a backrest bearing element 18 on the underside of the backrest 32 - is bound. The steering levers 16 are attached to coupling joints 16 .

At the outermost end, headrest steering levers 17 are provided on both upper arms 13, which are connected on the one hand to a coupling joint 17.2 on the upper arm 13 and on the other hand to a coupling joint 17.1 on a headrest bearing element 19.

In FIG. 3, the bed frame 100 is shown in a side sectional view from the left, with the left side frame part 51 removed, and with the head and backrest assembly 30 and the foot and leg rest assembly 60 in the same position as in FIGS .

On the right is the erected foot and leg support unit 60. The linear drive 75 and the erecting frame 72 form a triangle with the section of the longitudinal beam 71 located between them, which defines the height of the foot and lower leg support 64. Your inclination is determined by the articulated chain through the connection of the foot and lower leg support 64 on the Lower leg support hinges 63, thigh support 62 and leg support base hinges 61 are formed with center panel 55.

On the left in FIG. 3, the head and backrest unit 30 is still in the rest position. The motor base mount 22 is located on the side rail 11 near the head frame part 51. The motor cross-member mount 23 on the cross-member 14 is located about halfway between the top of the side rail 11 and the bottom of the backrest 32.

In order to incline the headrest 34 more strongly than the backrest 32 relative to the lying plane L during the uprighting movement, the functional fitting 10 is designed in such a way that the headrest 34 rises synchronously with the backrest 32 together. In addition, the fixed stops described separately below ensure that the headrest 34 never tilts backwards relative to the backrest 32 .

In particular, the functional fitting 10 achieves a movement in which the headrest 34 is raised synchronously with the backrest 32 during the entire uprighting movement and is also tilted relative to the backrest 32 towards the middle of the bed.

In FIG. 4, the bed frame 100 is again shown in a lateral sectional view from the left, with the left side frame part 52 removed. By extending the lifting tube of the linear drive 21, the stand-up frame 12 has been raised from the rest position according to FIG. 3 and now encloses an acute angle with the lying plane L, both steering levers 16, 17 are inclined toward the center of the bed frame 100. The headrest 34 is no longer in the same plane as the backrest 32.

The kinematics in the head and backrest unit 30 according to the invention are achieved through the special properties of the functional fitting 10 .

For explanation, Fig. 5 shows an abstracted view of the head and backrest unit 30 from Fig. 4, whereby it must be taken into account that the abstracted model in Figure 5 only shows one functional level through one of the upper arms 13, while the real functional fitting 10 due to the two upper arms 13 on the raising frame 12, it has two parallel and identical functional levels:

In an area of the upper arm 13, which extends between the traverse 14 and the free end of the upper arm 13, there is a linkage with a total of five fixed elements, which are shown as rods, and seven parallel pivot axes, which are shown as circles are shown.

The rods in the linkage are formed by the upright frame 12 including the upper arms 13, the steering levers 16, 17, the backrest 32 and the headrest 34.

A stationary axis is formed by the backrest hinge 31 between center plate 55 and backrest 32; another stationary axis through the lifting frame base joint 15.

A movable axis is formed by the headrest joint 33 between the backrest 32 and the headrest 34 . - Two of the moving axes are connected by coupling joints

16.2, 17.2 formed for the steering levers 16, 17, which are located on the upper arms 13. The distance between them is denoted as X _A .

- The remaining two movable axes are formed at the connection of the coupling joints 16.1, 17.1, with which the bearing levers 16, 17 are respectively connected to bearing elements 18, 19 on the undersides of the back and headrests 32, 34. The headrest joint 33 is located between them in the longitudinal direction, but in a position which is higher in relation to the stand-up frame 12 than that of the coupling joints 16.1, 17.1.

- The distance xs between the coupling joints 16.1, 17.1 in the longitudinal direction of the upper arm 13 is smaller than the distance X _A . In addition, the end steering lever 17 on the headrest 34 is somewhat longer than the steering lever 16 connected to the backrest 32.

- In terms of function, the movement of the upper arms 13 of the erection frame 12 and the back support 32 is determined only by part of the coupling mechanism, which includes a four-bar linkage chain with the bars 12, 16 and 32 and the joints 15, 16.1, 16.2 and 31.

- A further part of the linkage, which controls the movement of the headrest 34, is connected to the mentioned four-bar linkage via the common joints 16.1, 16.2. This part also includes the joints 17.1,

17.2, 33.

Since the headrest 34 is connected to the backrest 32 via a total of five joints, there is an additional degree of freedom through which the position of the headrest 34 relative to the backrest 32 can be undetermined. To achieve, that the headrest 34 only moves relative to the backrest 32 in such a way that it tilts towards the middle of the bed but does not drop backwards, the steering lever 17 is longer than the steering lever 16 .

As a further measure to tilt the headrest 34 from the rest position in the intended direction, i.e. towards the center plate 55, and to avoid tipping backwards and downwards, fixed stops are provided, which in the detailed isometric view in FIG part of the erecting frame 12 located in the vicinity of the head frame part 51 can be seen. In FIG. 6, the headrest and backrest 32, 34 are each in the fully lowered rest position. Fixed stops 17.4 in the form of welded round steel sections are attached to the two upper arms 13 of the erection frame 12 . The rear, lower edge of the steering lever 17 rests on it.

A further fixed stop 17.3 is attached to each of the headrest bearing elements 19, on which the steering lever 17 is supported with its front, upper edge. The steering lever 16 has only one fixed stop 16.4, which is designed as a notch in the steering lever 16.

FIG. 7 shows the support of the steering lever 16 in a further isometric detailed view. The notch for the fixed stop 16.4 extends laterally inwards by about 3/4 of the sheet metal thickness of the link lever 16, so that a stable support on the upper edge of the upper arm 13 is made possible.

FIG. 8, like FIGS. 3 and 4 previously, is a side sectional view through the bed frame 100 from the left, with the upright position of the head and back support unit 30 being shown. The lifting tube 24 of the linear drive 21 is now fully extended. The motor traverse bearing 23 rests against the back of the back support 32, so that the maximum possible end position of the back support 32 is reached. The back support 32 assumes an angle to the lying plane L of about 60°. The headrest 34 is even approximately perpendicular to the lying plane L. The steering lever 16 is fixed in that a stop element 16.3 and/or an axis of the coupling joint 16.1 and/or another fixed stop rests on the upper edge of the arm 13.

FIG. 9 shows the upright position of the head and backrest unit 30 in an enlarged isometric view of the head area of the bed frame 100. Here, in particular, the largely symmetrical design of the head and backrest unit 30 with the central longitudinal beam 11 and the V-shaped upright frame 12 recognizable in the upright position. The stability of the erected backrest 32 against twisting in the lateral direction, which occurs, for example, when the backrest is loaded very far off-centre, is achieved by a stable quadrilateral of forces, which is indicated by the dotted line. The stability is achieved in particular by the upper arms 13 which extend laterally outwards and which are articulated to the back support bearing elements 18 .

The position of the back support bearing elements 18 in the transverse direction of the bed frame 100 is selected such that they are arranged from the respective side edge of the back support 32 at approximately 1/4 to 1/3 of the overall width. In addition, the arrangement of the hinges that form the backrest joint 31 and the headrest joint 33 is selected close to the side edge of the bed frame 100, respectively. FIG. 10 shows a second embodiment of a bed frame 100' designed according to the invention for a bed, in particular for a box spring bed. This comprises two functional fittings 10', 70 arranged coaxially along the central longitudinal axis of a bed frame 50, which are mounted within the bed frame 50 for the box spring bed.

The design of the bed frame 50 with head frame part 51, foot frame part 53, side frame parts 52, 54 and center panel 55, the backrest 32 connected to the center panel 55 via a backrest joint 31 and the headrest 34 connected to the latter via a headrest joint 33 are each identical to the first described embodiment. As in the first embodiment, both supports 32, 34 are of the same width. The backrest 32 is again longer by a factor of about 2 to 3 than the headrest 34.

Likewise, the leg and footrest unit 60 with the functional fitting 70 is identical in construction and function to the first embodiment.

In FIG. 10, the leg and footrest assembly 60 is in the fully raised upright position, while a head and backrest assembly 30' is fully lowered.

The design and function of the two functional fittings 10', 70 for the head and foot sides is largely identical with regard to the features described up to this point. Both functional fittings 10′, 70 are designed for the two separate and articulated supporting plates with only one motorized linear drive not only to be raised, but to be brought into a position in which the back support 32 and the head support 34 or the thigh support 62 and the foot and lower leg support 64 are oriented at a certain angle to one another and so for the person lying on the bed enable a comfortable posture.

The head and backrest unit 30' according to the second embodiment is based on the longitudinal beam 11, which is connected to the head frame part 51 and the center plate 55 via angle profiles 11.1, 11.2.

The stand 12' is V-shaped. It is formed by two arms connected to one another, which each have a lower attachment end for lateral articulation on the respective longitudinal member 11 and which merge towards the end into upper arms 13 ′, which run at a lateral distance from one another and from the longitudinal member 11 . They are connected via the traverse 14 which extends across the longitudinal member 11 . The linear drive 21 is articulated on the one hand on a motor base bearing on the longitudinal member 11 in the vicinity of the head frame part 51, and on the other hand on a motor traverse bearing 23 on the traverse 14'. The linear motor 21 is accommodated in the free space between the left upper arm 13' and the longitudinal beam 11.

The only, but at the same time important, difference in the head and backrest unit 30' in comparison to the first embodiment consists in the manner in which the backrest 32 is supported on the uprighting frame 12'. FIG. 11 shows the bed frame 100' in a lateral sectional view through the bed frame 50, in which the left side frame part has been removed. At the outermost end of the erection frame 12', a headrest steering lever 17 is provided on each of the two upper arms 13', which is connected on the one hand to a coupling joint 17.1 on the upper arm 13 and on the other hand to a coupling joint 17.2 on a headrest bearing element 19. The headrest 34 is supported above this.

Also provided on each of the two upper arms 13' is a pair of rollers 20', the axis of rotation of which runs just above the upper arms 13'. In the rest position with the head and backrest unit 30' lowered, the rollers 20' have no contact with the backrest 32. The backrest 32 is only held by the hinge axes 31,33.

The length of the steering lever 17 and the position of the rollers 20' are matched to one another in such a way that at the beginning of the uprighting movement of the head and backrest unit 30' a so-called leading movement of the headrest 34 is made possible, i.e. the headrest 34 is already tilted before the rollers 20' engage the back support 32.

This becomes clear when comparing the rest position in Figure 11 and a first intermediate position in Figure 12:

FIG. 12 shows the bed frame 100′ in a similar side sectional view as before. The lifting movement has already been initiated. The erecting frame 12' has been raised slightly compared to the position in FIG. The headrest 34 was clearly moved out of the lying plane L via the handlebar lifting at 17 . Here it is already at an angle of more than 30° to the lying plane L, while the back support 32 is still in the lying plane L. The rolls 20' now have initial contact with the back of the backrest 32. The contact point of the rollers 20' is - viewed in the longitudinal direction of the bed frame 50 - on the edge area of the backrest 31 pointing towards the head end. The angle α enclosed between the backrest 32 and the headrest 34 is approximately 150°.

It is characteristic of the second embodiment of the functional fitting 10' for the head and backrest unit 30' that this angle between the supports 32, 34 is maintained after the headrest 34 has been advanced, or, according to a special embodiment, is essentially remains hold and may differ in the range of 120° to 150° as the backrest 32 is further raised.

It can also be seen in FIG. 12 that the motor base bearing 22 of the linear drive 21 is arranged as far down as possible, ie on the underside or in the lower half of the profile height of the longitudinal beam 11 . At the same time, the motor traverse bearing 23 is located on the traverse 14 directly behind the rear of the back support 32. The available space is thus optimally utilized, so that an effective lever H between the uprighting frame base joint 15 and the extension of the line of force of the Lifting tube 24 is available, via which a righting torque is exerted on the righting frame 12'. Due to the distance in the longitudinal direction between the upright stand base joint 15 and the motor traverse bearing 23, the effective lever arm H is extended through the back support 32 to beyond the bed level L, while at the same time a space-saving arrangement of the entire functional fitting 10' including the linear drive 21 is possible within the given Height of the bed frame 50 is possible. FIG. 13 shows the bed frame 100' in a second intermediate position, again in a similar lateral sectional view. When the uprighting frame 12' is raised further, the rollers 20' push the back support 32 up so that it is lifted out of the lying plane L. The angle α between the supports 32, 34 is always not preserved.

In the illustration in FIG. 14, the end position of the upright position has almost been reached. The backrest 32 is now at an angle of 40° to 60° to the lying plane L. The angle α between the backrest 32 and the headrest 34 is still approximately 150°. The point of contact of the rollers 20' with the back of the back support 32 has meanwhile been shifted significantly towards the center of the back support 32, as seen in the longitudinal direction. If the lifting tube 24 of the linear drive 21 can be extended further, the erection from the position according to FIG.

Figure 15 shows a bed frame 200 for a piece of furniture as a platform bed, which is provided with a first embodiment of a functional fitting 210 designed according to the invention for a head and back support unit 230 and also contains a functional fitting 270 for a foot and leg support unit 260 .

The functional fittings 210 , 270 are mounted within a bed frame 250 on the bed frame 200 . The bed frame 250 comprises two frame side parts 251 extending parallel to one another in the longitudinal direction, only one of which is drawn here, and at a head end a die Frame side parts 251 connecting head frame part 253 and at a foot end a foot frame part 254, whereby a circumferentially closed, rectangular frame 250 of the bed frame 200 is formed. Cross members 257, 258 extend between the frame side parts 251 in a central area of the length.

A bearing for a backrest joint 240 is formed on each of the two frame side parts 251 , via which a backrest platform 232 of the head and backrest unit 230 is connected to the frame 250 . On the other side, facing towards the foot end, a legrest base joint 261 is formed, via which a foot and legrest unit 260 is pivotably attached to the frame 250.

A support for a center plane 255 can also be seen in a middle area of the length of the frame 250 . The center plane 255 includes slats mounted stationarily on the frame 250 , which are therefore neither part of the head and backrest unit 230 nor of the foot and leg rest unit 260 .

The head and back support unit 230 and the foot and leg support unit 260 each contain two support platforms that can be moved separately from one another in order to enable a comfortable adaptation to the human anatomy.

For this purpose, the head and backrest unit 230 is divided into a backrest platform 232, which is connected to the frame 250 via the backrest joint 240, and a shorter headrest platform 234, which is connected to the backrest platform ₂₃₂ via a headrest joint 233.

The foot and leg rest unit 260 is in turn divided into a short thigh support platform 262 which is connected to the bed frame 250 via the leg support base hinge

261, and a longer foot and lower leg support platform 264. The thigh support platform

262 and the foot and calf support platform 264 are pivotally connected to one another via a foot and calf support joint 263 .

In FIG. 15, the head and backrest unit 230 is in a raised position in which the backrest platform 232 and the headrest platform 234 connected thereto are set up as far as possible. The foot and leg support unit 260 is in a raised and angled position above a lying plane.

Each functional fitting 210, 270 comprises a longitudinal beam 211, 271 designed as a rectangular steel profile, which is mainly made of painted steel and which extends centrally under the bed frame 250 in the direction of the bed's longitudinal axis. The longitudinal member 211 is connected to the head frame part 253 via a mounting bracket 211.1 and to the cross member 258 via a further end fitting. The longitudinal beam 271 is fastened to the cross beam 257 and to the foot frame part 254 .

A motor base bearing 222, 273 is arranged at the respective end of the functional fittings 210, 270 pointing to the outside of the bed, on which the respective rear end of a linear drive 221, 275 is pivotably mounted. The linear drives 221, 275 each include a lifting tube 224 whose length can be changed by an electric motor drive 211 so that the angle at which the linear drive acts on the uprighting frame 212 is as large as possible and the force required for the uprighting movement of the head and backrest unit 230 is reduced by lengthening the effective lever arm.

Each erecting frame 212, 272 is formed by two arms connected to one another, each of which has a lower fastening end for lateral articulation on the respective longitudinal beam 211, 271, ie enclosing it on both sides with an axis 215, 275 arranged between them. They then merge into a widened, V-shaped area in which the distance between the arms widens. In the stand-up frame 212 for the head and backrest unit 230, the arms at their free upper end merge again into end sections which extend parallel to one another and are referred to as upper arms 213. The erecting frames 212, 272 are each mounted via U-shaped bearing elements, which are supported on the crossbeams 257, 258.

The design and function of the two functional fittings 210, 270 for the head and for the foot side is largely identical with regard to the features described up to this point. Both functional fittings 210, 270 are designed not only to raise the two separate and articulated support platforms 232, 234, 262, 264 with just one motorized linear drive, but also to bring them into a position in which the backrest platform 232 and the headrest platform 234 and the thigh rest platform 262 and the foot and lower leg rest platforms 264 are oriented at a certain angle to each other and to the bed frame 250, thus providing a comfortable Allow posture for the person lying on the bed.

The forces on and from the support platforms 232, 234, 262, 264 can be absorbed well on the wide upright frames 212, 272, so that stable support is achieved without parts of the functional fittings 210, 270 being attached directly to the frame side parts 251 would have to be arranged. On the contrary, there is still enough free space between the raising frames 212, 272 and the frame side parts 251, so that narrower or wider bed frames with the same functional fittings 210,

270 can be equipped. The bed frame 250 can be dismantled in a known manner for moving and transport. The expanded functional fitting 210, 270 with longitudinal support 211,

271 then has small dimensions in width and length and also a small depth and can therefore be stowed away easily.

The difference between the head and back support unit 230 on the one hand and the foot and leg support unit 260 on the other hand is the design and function of the respective stand-up frame 212, 272. The stand-up angle of the back support platform 232 and the thigh support platform 262 is defined in each case as positive towards the upper edge of the bed frame 250 and relates it to the lying plane parallel to the upper edge of the bed frame 250, then the headrest platform 234 should assume a positive angle relative to the backrest platform 232, at least in the end position of the upright position, i.e. the The headrest platform 234 should be inclined more towards the bed frame 250 than the backrest platform 232. On the other hand, in the upright position, the foot and legrest unit 260 set a negative angle between the thigh support platform 262 and the foot and lower leg support platform 264, ie a lowered position. This requires different designs of the functional fittings 210, 270.

The functional fitting 270 for the foot and leg support unit 260 has a simple design. The uprighting frame 272 is articulated on the one hand to the longitudinal beam 271 and on the other hand to a bearing element 279 on the underside of the foot and lower leg support platform 264 . Due to the linear drive 275, which is attached in an articulated manner to the longitudinal beam 271 on the one hand, the erecting frame 270 is increasingly pivoted upwards when the motorized linear drive 275 is actuated and lifted in relation to the central platform 255.

The joint 265 on the underside of the foot and lower leg support platform 264 is, seen in a side view, moved on a path which, on the one hand, is due to the constant length between the joints of the erecting frame 272 and the constant length between the Joints 261, 263 and on the other hand determined by the variable length of the lifting tube on the linear drive 275. As a result of this forced guidance, the foot and lower leg support platform 264 is not only raised, but also shifted towards the middle in the longitudinal direction of the bed frame 200 . The thigh support platform 262 coupled in between is quickly transferred to a steep position, not least because of its short length, while the foot and lower leg support platform 264 during the movement into the upright position is approximately parallel to the lying plane in the rest position. ment remains and at the end of the movement there is still something in . Direction of the foot frame portion 254 lowers. The erecting frame 212 on the head and backrest unit 230 is in terms of a V-shaped base element, also known as a "rocker", which, in addition to the arms spread apart from one another, includes the two upper arms 213 and a Traverse2 14 connecting them the linear drive 221 is articulated, constructed similarly to the erection frame 272 for the foot and leg support unit 260.

In contrast to the foot and leg support unit 260, however, the headrest platform 234 should never assume a negative angle relative to the backrest platform 232 in all phases of the movement of the head and backrest unit 230, i.e. it should not tilt backwards . Rather, the headrest platform 234 should be inclined more towards the center of the bed frame 200 than the backrest platform 232 to which it is connected, at least in the end position of the upright position of the backrest platform 232 .

For this purpose, the functional fitting 210 for the headrest and backrest unit 230 is specially designed, as is explained using the enlarged representation in the isometric view of the rear in FIG.

As already described, the erecting frame 212 is formed by two upper arms 213 connected to one another via a traverse 214, which emerge from arms that each have a lower attachment end for lateral articulation on an erecting frame base joint 215 on the longitudinal beam 211. The arms initially extend parallel to one another for a short distance from the base joint 215 of the erecting frame and run close to the longitudinal beam 211 on both sides then transition obliquely into a widened area, in which the distance from the longitudinal member 211 increases continuously, and at their respective free end again transition into end sections which extend parallel to one another and which form the upper arms 213 . The upper arms 213 are at a clear distance from the side surfaces of the longitudinal beam 211. The widening of the arms must lead to such a lateral offset in relation to the side surfaces of the longitudinal beam 211 that the linear drive 221 is in a non-illustrated rest position with the head completely lowered. and back support unit 230 can be completely accommodated in the free space between the longitudinal beam 211 and the left upper arm 213 of the riser 212 .

An additional backrest steering lever 216 is provided on each of the two upper arms 213 on the functional fitting 210 and is connected in an articulated manner to the upper arm 213 as well as to a backrest bearing element 218 . The two backrest bearing members 218 are attached to the backrest platform 232 at the rear or underside of a backrest underlay 238 . The backrest steering levers 216 are fastened to coupling joints 216.1, which are arranged on the upper arms 213 approximately in the middle between the base of the traverse 214 and the end of the upper arm.

A headrest steering lever 217 is provided at the respective outermost end of both upper arms 213, which in turn is connected to a coupling joint 217.2 on the upper arm 213 and on the other hand to a coupling joint 217.1 on a headrest bearing element 219. The headrest bearing elements 219 are attached to a headrest base 236 of the headrest platform 234 . In the exemplary embodiment shown in FIG. 16, the back support joint 240 is designed as a four-bar linkage. FIG. 24 is an enlarged detail of the representation according to FIG. Two other joints are not visible; they are attached to the side faces of the backrest side frame members 237 . Due to the four-bar linkage, the back support 232 is shifted slightly towards the head end when it is raised, so that a mattress lying on it in the area of the base point of the back support 232 is less kinked than with a non-movable joint point.

The kinematics in the head and backrest unit 230 according to the invention are achieved through the special properties of the functional fitting 210 . For explanation, Fig. 17 shows an abstracted view of the head and backrest unit 230, whereby it must be taken into account that the abstracted model in Figure 17 only shows one functional level through one of the upper arms 213, while the real functional fitting 210 has two parallel and identical functional levels due to the two upper arms 213 on the upright frame 212:

In an area of the upper arm 213, which extends between the traverse and the free end of the upper arm 213, there is a linkage with a total of five fixed elements, which are shown as rods, and seven parallel pivot axes, which are shown as circles are shown.

The rods in the linkage are through the Raising frame 212 including the upper arms 213, the steering levers 216, 217, the backrest platform 232 and the headrest platform 234 formed.

A stationary axis is through the backrest hinge

231 formed; another stationary axis through the erection frame base joint 215.

A movable axis is through the headrest hinge

233 between the backrest platform 232 and the headrest platform 234 is formed.

Two of the movable axes are coupled by coupling joints 216.2, 217.2 for the head and backrest steering lever

217, 126, which are located on the upper arms 213. The distance between them is denoted as xA.

The remaining two movable axes are formed at the connection of the coupling joints 216.1, 217.1, with which the bearing levers 216, 217 are each attached to bearing elements

218, 219 on the undersides of the back and headrests 232, 234 are connected. The headrest joint 2 33 is located in between in the longitudinal direction, but in a position which is higher in relation to the stand-up frame 212 than that of the coupling joints 216.1, 217.1.

In a preferred embodiment of the functional fitting 210, the distance xS between the coupling joints 216.1, 217.1 in the longitudinal direction of the upper arm 213 is smaller than the distance xA. In addition, the end headrest linkage 217 is on the headrest platform

234 slightly longer than the one with the backrest platform

232 linked backrest linkage 216. Functionally, the movement of the upper arms 213 of the uprighting frame 212 and the back support platform 232 is only determined by part of the coupling mechanism, which includes a four-bar linkage chain with the rods 212, 216 and 232 and the joints 215, 216.1, 216.2 and 231.

Another part of the linkage, which controls the movement of the headrest platform 234, is connected to the mentioned four-bar linkage via the common joints 216.1, 216.2. This part also includes the joints 217.1, 217.2, 233.

Since the headrest platform 234 is connected to the backrest platform 232 via a total of five joints, there is an additional degree of freedom through which the position of the headrest platform 234 relative to the backrest platform 232 can be undetermined. In order to ensure that the headrest platform 234 only moves relative to the backrest platform 232 in such a way that it tilts towards the middle of the bed but does not fall backwards, the headrest linkage lever 217 is longer than the backrest linkage lever 216 .

As a further measure to erect the headrest platform 234 from the rest position and to prevent it from tipping backwards and downwards, fixed stops are preferably provided which, in the isometric detailed view in FIG 212 are visible.

In FIG. 18, the headrest and backrest platforms 232, 234 are each in the fully lowered position rest position. Fixed stops 217.4 in the form of welded round steel sections are attached to the two upper arms 213 of the erecting frame 212. The rear, lower edge of the headrest steering lever 217 rests on it. A further fixed stop 217.3 is attached to each of the headrest bearing elements 219, on which the headrest steering lever 217 is supported with its front, upper edge. The steering lever 216 has only one fixed stop 216.4, which is designed as a notch in the backrest steering lever 216.

FIG. 19 shows the support of the steering lever 216 in a further isometric detailed view. The notch for the fixed stop 216.4 extends laterally inwards by about 3/4 of the sheet metal thickness of the link lever 216, so that a stable support on the upper edge of the upper arm 213 is made possible.

FIG. 20 is an isometric view of a framed slatted frame 200′ from the rear at an angle, which is constructed on a functional fitting 210′ designed according to the invention.

The slatted frame 250' comprises two frame side parts 251', 252' extending parallel to one another in the longitudinal direction and at a head end a head frame part 253' connecting the frame side parts 251', 252' and at the foot end a foot frame part 254', creating a circumferentially closed, rectangular Slatted frame 250' is formed. In a middle area of the length, crossbeams extend between the frame side parts 251', 252', of which only crossbeam 258' assigned to a head and backrest unit 230' is visible in FIG. One end of a longitudinal member 211' of the functional fitting 210' for the head and backrest unit 230' is mounted on the cross member 258'; the other end is connected to the head frame part 253'. In addition, the slatted frame 200'' has a functional fitting 270' for a foot and leg support unit 260'.

A back support joint 240' is formed on the frame side parts 251', 252', via which a back support platform 232' of the head and back support unit 230' is pivotably connected to the slatted frame 250'. On the other side, facing towards the foot end, there is a leg support base joint 261', via which the foot and leg support unit 260' is pivotably fastened to the slatted frame 250'.

A fixed central plane 255' can also be seen in a central region of the slatted frame 250'. The center plane 255' includes slats mounted stationarily on the bed frame, which are therefore neither part of the head and backrest unit 230' nor the foot and leg rest unit 260'.

The head and back support unit 230' and the foot and leg support unit 260' each contain two support platforms which can be moved separately from one another in order to enable a comfortable adaptation to the human anatomy. For this purpose, the head and backrest unit 230' is divided into the backrest platform 232', which is connected directly to the slatted frame 250' via the backrest joint 240', and a shorter headrest platform 234', which is connected to the backrest platform 232' via a headrest joint 233' ' connected is.

The foot and leg rest unit 260' is in turn divided into a short thigh rest platform 262', which is connected to the slatted frame 250' via the leg rest base joint 261', and a longer foot and leg rest platform High leg support platform 264'. The thigh support platform 262'' and the foot and lower leg support platform 264' are pivotally connected to one another by a foot and lower leg support hinge 263'.

In FIG. 20, the head and backrest unit 230' is in a raised position in which the backrest platform 232' and the headrest platform 234' connected thereto are raised as far as possible. The foot and leg support unit 260' is also in a raised and angled position above a lying plane L. The functional fitting 270' is provided in order to move these.

The functional fitting 210' comprises a longitudinal member 211' designed as a rectangular steel profile, which is mainly made of painted steel and which extends in the longitudinal direction within the slatted frame 250'.

A motor base bearing 222' is arranged on the end of the functional fitting 210' pointing towards the head frame part 253', on which the respective rear end of a linear drive 221' is pivotably mounted. The linear drive 221′ includes a lifting tube 224′ whose length can be changed by an electric motor drive and which is articulated on a motor traverse bearing on a traverse 214′ of the erecting frame 212′.

The erecting frame 212' is formed by two arms, each of which has a lower attachment end for lateral articulation on the longitudinal beam 211', ie enclosing it on both sides with an axis arranged in between, so that an erecting frame base joint 215' is formed. You then go into a flared, V-shaped area over, in which the distance between the arms widens. In the case of the stand-up frame 212'' for the head and backrest unit 230', the arms at their free upper end merge into short end sections aligned parallel to one another. A headrest steering lever 217' is articulated on both end sections, which is connected on the one hand to a coupling joint 217.2' on the respective end section of the arms and on the other hand via a coupling joint 217.1' to a headrest bearing element 219'. The headrest bearing elements 219' are fastened directly to the underside of the side headrest side frame elements 235', so that the functional fitting 210' can also be used if only loosely mounted and/or resilient slats extend between the headrest side frame elements 235', but no fixed beam or some other type of rigid cross member is present.

FIG. 21 shows the slatted frame 200' with the frame 250' in an isometric view at an angle from the front. The slats that form the actual mattress pad have been removed for the sake of clarity. They extend between the paired parallel headrest side frame elements 235', the backrest side frame elements 37' and the corresponding side frame elements of thigh support platform 262' and foot and lower leg support platform 264'.

The functional fittings 210', 270' for the head and backrest unit 230' and the foot and leg rest unit 260' are constructed very similarly and differ essentially in that the functional fittings 270' for the foot and leg rest unit 260' no headrest steering levers 217' are provided. Otherwise they can Functional fittings 210', 270' can be formed from several identical or similar parts, resulting in cost savings.

The V-shape of the erecting frames 212', 272' provides stable support without parts of the functional fittings 210', 270' having to be arranged directly on the frame side parts 251', 252'. On the contrary, there is sufficient free space for the motorized drives between the erecting frames 212', 272' and the frame side parts 251', 252'.

As already described above for the bed frame 200, the headrest platform 234' of the framed slatted frame 200' should also be inclined more forward than the backrest platform 232', at least in the end position of the upright position. On the other hand, in the upright position of the foot and leg support unit 260', a negative angle should be set between the thigh support platform 262' and the foot and lower leg support platform 264'.

The functional fitting 270' for the foot and leg support unit 260' has an erecting frame 272' which is articulated to the longitudinal beam 271' on the one hand and to a bearing element 279 on the underside of the foot and lower leg support platform 264' on the other hand. Due to the linear drive 275', which is articulated on the one hand on the longitudinal beam 271' and on the other hand on the traverse 274', the erecting frame 272' is increasingly pivoted upwards and in relation to the plane when the motorized linear drive 275' is actuated of the upper edge of the slatted frame 250'. The coupling joint 2 77' on the underside of the foot and lower-leg support platform 264', seen in a lateral view, is moved on a path which, on the one hand, is due to the constant length between the joints 276', 278' of the stand-up frame 272' and the constant length between the joints 261', 263' and on the other hand by the variable length of the lifting tube on the linear drive 275'. As a result of this restricted guidance, the foot and lower leg support platform 264' is not only raised, but at the same time also shifted in the longitudinal direction of the slatted frame 200' towards its center. The thigh support platform 262' coupled in between is quickly transferred to a steep position, not least because of its short length, while the foot and lower leg support platform 264' remains approximately parallel to the lying plane in the rest position during the movement into the upright position and remains only slightly lowers towards the foot frame part 254' at the end of the movement.

The headrest platform 234' should not tilt backwards in any phase of the movement. At least in the end position of the upright position, it should be inclined more towards the center of the slatted frame 200' than the back support platform 232' to which it is connected. The stand-up frame 212' of the head and back support unit 230' has a V-shaped base element, also referred to as a "rocker", which, in addition to the spread-apart arms, comprises a traverse 214' connecting them, to which the linear drive 221' is articulated . The widening of the arms leads to such a lateral offset in relation to the side surfaces of the longitudinal beam 211' that the linear drive 221' in a lowered rest position of the head and backrest unit 230' is completely in the free space between the longitudinal beam 211' and the uprighting frame 212 ' can be included.

The longitudinal beam 211' extends between an angle profile 211.1', which is supported on the head frame part 253', and a cross beam 258', which is designed as a round tube and which extends in the area of the center plane 255' between the frame side parts 251', 252'. extends.

The longitudinal member 271' extends between an angle profile 271.1', which is supported on the foot frame part 254', and a cross member 257', which is also designed as a round tube and is also located in the area of the central plane 255' between the frame side parts 251 ', 252' extends.

As the side view of the slatted frame 200' shows in the rest position shown in FIG. 22, the lying plane L is defined by the upper side of the slats, which are part of the platforms 264', 262', 232', 234'. Furthermore, it can be seen there that the motor base bearing 222' for the head and backrest unit 230' is arranged very close to the head frame part 253' and is even positioned below the enclosure by the slatted frame 250'. Since the motor base bearing 222' is located directly at the head frame part 253', the angle at which the linear drive acts on the uprighting frame 212' is increased and the angle required for the uprighting movement of the head and backrest unit 230' Force by lengthening the effectively effective lever arm is thereby reduced at the same time.

The motor base bearing 273' for driving the foot and leg support unit 260' is also arranged below the profile cross-section of the associated longitudinal member and protrudes downwards out of the enclosure by the frame 250'. The erecting frames 212', 272' also partially protrude downwards out of the enclosure of the frame 250'.

FIG. 23 shows the slatted frame 200' from below in the resting position, that is to say the platforms 264', 262', 232', 234' form a continuous lying level. The upright frame 212' for the headrest and backrest platforms 234', 232' and the upright frame 272' for the leg and footrest platforms 262', 264' each comprise arms spread apart from one another in a V-shape, each of which has a traverse 214 ', 274' are connected to each other. However, they are not mirror-symmetrical in relation to their respective longitudinal members 211', 271' and the longitudinal members 211', 271' are not aligned on a central axis M of the frame 250'.

Rather, they are offset to the side and on different sides of the central axis M to such an extent that the lifting tubes of the linear drives 221′, 275′ are aligned on the central axis M. As a result, the frame 250' experiences less torsion when the linear drives 221', 275' are actuated. The slight asymmetry of the erecting frames 212', 272' does not entail any disadvantages in view of the large support width.

Further aspects of the invention:

1. Motorized functional fitting (10; 10') for a bed frame (100; 100') of a box spring bed, which bed frame (100; 100') has a bed frame (50) with at least one center plate (55), a back support (32) articulated thereon and a headrest (34) hinged to the backrest (32), comprising: at least: a stand-up frame (12; 12'), which comprises at least two arms connected to one another via at least one crossbar (14; 14'), which is attached via at least one headrest steering lever (17) to a headrest bearing element (19 ) is articulated and has at least one support element for supporting the back support (32) when standing up, a linear drive (21) with a lifting tube (24) which is articulated at one end on the stand-up frame (12; 12') and can be supported with another end on a fixed point of the bed frame (100; 100''); CHARACTERIZED IN THAT the functional fitting (10; 10') comprises a longitudinal beam (11) which is to be arranged on a bed frame central axis and can be connected to the bed frame (50) and on which the uprighting frame (12; 12') is articulated; THAT the righting frame (12; 12') is designed like a fork and has at least one lower arm which is articulated on a righting frame base joint (15) on the longitudinal beam (11, 11'), THAT the righting frame (12; 12') comprises two upper arms (13; 13') which are spaced apart from one another and to the longitudinal beam (11) arranged between them, THAT the traverse (14; 14') is above the longitudinal beam (11) and transversely between the lower arms and/or the upper arms (13; 13') and connects them to one another, THAT the linear drive (21) is articulated on the longitudinal beam (11) and on the raising frame (12; 12') and when the raising frame (12; 12') between the longitudinal beam (11) and one of the upper arms (13) of the erection frame (12; 12') is arranged.

2. Functional fitting (10) according to aspect 1, CHARACTERIZED IN THAT the linear drive (21) is articulated on a motor base bearing (22) on the longitudinal beam (11) and on a motor traverse bearing (23) on the traverse (14).

3. Functional fitting (10) according to aspect 2, CHARACTERIZED IN THAT the motor base bearing (22) is located at the bottom or in the lower half of the profile height of the side member (11). . Functional fitting (10) according to one of aspects 1 to 3, CHARACTERIZED IN THAT the pivoting angle of the link lever (17) for the headrest (34) is limited by at least one fixed stop (17.4) on the upper arm (13).

5. Functional fitting (10) according to one of aspects 1 to 4, CHARACTERIZED IN THAT the pivoting angle of the link lever (17) for the headrest (34) is limited by at least one fixed stop (17.3) on the headrest bearing element (19).

6. Functional fitting (10) according to one of aspects 1 to 5, CHARACTERIZED IN THAT the support element for the backrest (32) is designed as a backrest steering lever (16) which is connected via a coupling joint (16.2) on the upper arm (13) of the erecting frame (12) and via a coupling joint (16.1) to a back support bearing element (18) to be fixedly attached to the back support (32). 7. Functional fitting (10) according to aspect 6, THUS

CHARACTERIZED THAT the pivoting angle of the handlebar lever

(16) for the back support (32) is limited by at least one fixed stop (16.4) of the link lever (16) which is supported on the upper arm (13).

8. Functional fitting (10) according to aspect 7, BY

MARKED THAT the fixed stop (16.4) by a

Notch of the steering lever (16) is formed.

9. Functional fitting (10') according to one of aspects 1 to 3,

CHARACTERIZED IN THAT the supporting element for the

The back support (32) is formed by at least one roller (20') which projects at least partially over the erecting frame (12').

10. Functional fitting (10') according to one of aspects 1 to 3,

CHARACTERIZED IN THAT on each upper arm (13' ) a

Pair of rollers (20 ') is arranged.

11. Head and backrest unit (30) for a bed frame

(100) of a box spring bed, which bed frame (100) has a bed frame (50) with at least one central panel

(55), with at least: a functional fitting (10) according to one of aspects 6 to 8, a backrest (32) to be connected in an articulated manner to the center plate (55) and to which the backrest bearing element (18) is attached, and a headrest (34) articulated on the backrest (32), on which the

Headrest bearing element (19) is attached. 12. head and backrest unit (30) according to aspect 11,

CHARACTERIZED BY THAT the headrest steering lever

(17) is longer than the backrest steering lever (16) and THAT when the stand-up frame (12) is in the lowered rest position, the distance xS measured in the longitudinal direction between the coupling joints (16.1, 17.1) on the headrest (34) and on the Back support (32) is smaller than the distance xA between the coupling joints (16.2,

17.2) on the upper arms (13) of the erection frame (12).

13. Head and backrest unit (30') for a bed frame (100') of a box spring bed, which bed frame (100') comprises a bed frame (50) with at least one central panel (55), with at least: one functional fitting ( 10') according to aspect 9 or 10; a backrest (32) to be connected in an articulated manner to the center plate (55), and a headrest articulated to the backrest (32).

(34) on which the headrest bearing element (19) is attached, the at least one roller (20') in the lowered rest position of the erecting frame (12').

Contacting the rear of the backrest (32) and in an intermediate position in which the headrest is at least 15° relative to a through an upper edge of the

Center plate (55) formed lying plane (L) is inclined, on the back of the backrest (32) abuts.

14. Head and backrest unit (30; 30') according to one of

Aspects 11 to 13, CHARACTERIZED IN THAT the backrest joint (31) and the headrest joint (33) are each formed by at least two spaced apart ^hinges with a common pivot axis. 15. Box spring bed comprising a bed frame (100; 100') with a rectangular bed frame (50), which has two parallel frame side parts (51, 52), head and foot frame parts (51, 53) connecting them, and at least one lying in a lying plane (L ) between the frame side parts

(52, 54) extending center panel (55), and having a head and backrest unit (30; 30') according to any one of aspects 11 to 14, wherein the backrest (32) is connected to the center panel ( 55) is connected.

16. Motorized functional fitting (210; 210') for a

Bed frame (200) of a platform bed or for a framed slatted frame (200'), which bed frame (200) or which slatted frame (200') at least one frame (250; 250') and a backrest platform (232; 232') articulated thereon. comprises, with at least: an erecting frame (212; 212'), which is designed at least in sections in the manner of a fork and comprises at least two arms which are spread apart and are arranged at a lateral distance from the longitudinal beam (211; 211') arranged between them, wherein the erecting frame (212; 212') is connected in an articulated manner to the back support platform (232; 232'), a longitudinal beam (211; 211') which can be connected to the frame (250; 250'), on which the erection frame (212; 212') and the linear drive (221; 221') are articulated; a linear drive (221; 221') with a lifting tube (224;

224') which has one end on the erecting frame (212; 212') is articulated and supported at another end on a fixed point of the frame (250; 250'); wherein the linear drive (221; 221') when the erecting frame (212; 212') is lowered between the longitudinal beam (211;

211') and the arms of the erecting frame (212; 212'), and wherein the traverse (214; 214') extends above the longitudinal beam (211; 211') and transversely between the arms and connects them to one another,

CHARACTERIZED BY THAT the lumbar support platform

(232; 232') is connected in an articulated manner to a headrest platform (234; 234') via a headrest joint (233; 233'),

THAT the arms of the stand-up frame (212; 212') are each connected via a coupling joint (217.2; 217.2') to a headrest steering lever (217; 217'), which is each connected via a further coupling joint (217.1; 217.1') ) are connected to a headrest bearing element (219; 219') to be connected to the headrest platform (234; 234').

17. Functional fitting (210; 210') according to aspect 16, BY

CHARACTERIZED IN THAT the linear drive (221; 221') is mounted on a motor base bearing (222; 222') on the side member (211;

211 ') and on a motor traverse bearing (23; 23') on the

Traverse (14; 14 ') is articulated.

18. Functional fitting (210; 210') according to aspect 17, BY

CHARACTERIZED IN THAT the engine base bearing (222; 222') is located at the bottom or in the lower half of the profile height of the side member (211; 211'). 19. Functional fitting (210) according to one of aspects 16 to 18, CHARACTERIZED IN THAT the standing frame (212) comprises two lower arms spreading apart and two upper arms (213) adjoining their ends and aligned parallel to one another.

20. Functional fitting (210; 210') according to one of aspects 16 to 19, CHARACTERIZED IN THAT the pivoting angle of the link lever (217; 217') for the headrest platform (234; 234') is determined by at least one fixed stop (217.4; 217.4') on the arms of the erection frame (212; 212').

21. Functional fitting (210; 210') according to one of aspects 16 to 20, CHARACTERIZED IN THAT the pivoting angle of the steering lever (217; 217') for the headrest platform (234; 234') is controlled by at least one fixed stop (217.3; 217.3 ') is limited on the headrest bearing element (219; 219').

22. Functional fitting (210) according to one of aspects 20 to 21, CHARACTERIZED IN THAT the support element for the backrest platform (232) is designed as a backrest steering lever (216) which is connected via a coupling joint (216.2) on the upper arm (213 ) of the stand-up frame (212) and via a coupling joint (216.1) to a back support bearing element (218) to be fixedly attached to the back support platform (232).

23. Functional fitting (10) according to aspect 22, CHARACTERIZED IN THAT the pivoting angle of the link lever (216) for the backrest platform (232) is supported by at least one on the upper arm (213). fixed stop (216.4) of the steering lever (216) is limited.

24. Functional fitting (210) according to aspect 23, CHARACTERIZED IN THAT the fixed stop (216.4) is formed by a notch in the steering lever (216).

25. Head and backrest unit (230) for a bed frame (200) of a platform bed with a frame (250), with at least: one functional fitting (210) according to one of aspects 22 to 24, one via a backrest joint (240) articulated with the Backrest platform (232) to be connected to the frame (250), on which a backrest bearing element (218) for the backrest steering lever (216) is attached, and a headrest platform (234) articulated on the backrest platform (232) via a headrest joint (233) , on which the headrest bearing element (219) for the headrest steering lever (217) is attached.

26. Head and backrest assembly (30) according to aspect 25, CHARACTERIZED IN THAT the headrest platform (234) has at least two parallel headrest side frame members (235) and a headrest sub-frame (236) connecting them and to which the headrest la- means (219) for the headrest linkage (217) are attached THAT the backrest platform (232) has at least two parallel backrest side frame elements (237) and a backrest sub-frame (238) which connects them and THAT the backrest bearing elements (218) for the backrest linkages

(216) are attached to the backrest support (238) of the headrest platform (234).

27. The head and backrest assembly (30) according to any one of aspects 25 or 26, CHARACTERIZED IN THAT the headrest link (217) is longer than the backrest link (216) and THAT when the upright frame (212), the distance xS measured in the longitudinal direction between the coupling joints (216.1, 217.1) on the headrest platform (234) and on the backrest platform (232) is smaller than the distance xA between the coupling joints (216.2, 217.2). the

Upper arms (213) of the erection frame (212).

28 platform bed, comprising a bed frame (200) with a rectangular frame (250), the two parallel frame side parts (251, 252) and these connecting head and foot frame parts (253, 254), and with a head and backrest unit (230) under either aspect 25 or 26.

29. Platform bed according to aspect 18, characterized in that the frame (250) comprises at least one central platform (255) extending in a lying plane (L) between the frame side parts (252, 254).

30. Platform bed according to aspect 28 or 29, characterized in that the backrest platform (232) is connected to the center platform (255) via a backrest hinge (231). 31. Platform bed according to any one of aspects 28 to 30, characterized in that the frame (50) has at least one cross member (258) extending between the frame side parts (251, 252) and the back support platform (232) via a back support hinge (240) is connected to the cross member (258).

32. Head and backrest unit (230') for a framed slatted frame (200') with a frame (250'), with at least: one functional fitting (210') according to one of aspects 16 to 21, one via a backrest joint (240') to be connected in an articulated manner to the frame (250') and a backrest platform (232') articulated to the backrest platform (232') via a headrest joint (233').

Headrest platform (234') comprising two parallel, spaced-apart headrest side frame elements (235'), to which a headrest steering lever (217') is articulated in each case via a headrest bearing element (219').

33. Framed slatted frame (200') with a rectangular frame (250'), the two parallel frame side parts (251', 252') and these connecting head and foot frame parts

(253' , 254' ), and having a head and back

Support assembly (30) according to aspect 32.

34. Framed slatted frame (200') according to aspect 33, characterized in that the frame (250') is in one

Center platform (255') extending between the frame side parts (251', 252') lying level (L).

Motorized functional fitting for a bed frame of a box spring bed or a platform bed or for a framed slatted frame

Reference List

100 bed frame

10; 10' function fitting

11 longitudinal beams

11.1 Angle Profile

11.2 Mounting Brackets

12; 12' riser

13; 13' arms

14; 14' traverse

15 Raising Frame Base Joint

16 Backrest Steering Levers

16.1, 16.2 coupling joints

16.4 Fixed stop

17 headrest steering lever

17.1, 17.2 coupling joints

18 back support bearing element

19 headrest bearing element

20' roll

21 linear drive

22 engine base camp

23 engine cross member bearings 24 stroke tube

30; 30' head and backrest unit

31 backrest joint

32 back support

33 headrest joint

34 headrest

50 bed frame

52 head frame part

51 side frame part

53 foot frame part

54 side frame part

55 center plate

60 foot and leg rest unit

61 legrest base joint

62 Thigh!support

63 Foot and lower leg support joint

64 foot and lower leg support

65 joint

70 functional fitting

71 longitudinal members

72 riser

74 traverse

75 linear drive

200, 200' bed frame

210, 210' functional fitting

211; 211' stringer

211.1; 211.1' angle profile

212; 212' raising part

213 upper arms

214; 214' traverse

215; 215' Upright Base Joint

216; 216' Backrest linkage 216.1, 216.2, 216.1', 216.2' coupling joints

216.4 Fixed stop

217; 217' Headrest linkage

217.1, 217.2, 217.1', 127.2' coupling joints

218; 218' back support bearing element

219; 219' headrest bearing element

221; 221' linear drive

222; 222' engine base bearing

223; 223' engine cross member bearing

224; 224' lift tube

230; 230' head and backrest unit

231; 231' slatted side frame

232; 232' back support platform

233; 233' headrest hinge

234; 234' headrest platform

235; 235' Headrest side frame members

236 headrest support

237; 237' backrest side frame members

238 back brace support

240; 240' back support joint

241 front articulation axis

242 rear pivot axis

243 front articulated lever

244 rear link lever

250 bed frame

250' slatted frame

251, 252; 251', 252' side frame members

253; 253' head frame part

254; 254' foot frame part

255; 255' center platform

257, 258; 257', 258' cross members 260; 260' foot and leg rest unit

261; 261' Legrest Base Joint

262; 262' Thigh Support Platform

263; 263' Foot and lower leg support joint

264; 264'' foot and ankle support platform

270; 270' function fitting

271; 271' longitudinal members 272; 272' raising part

273; 273' engine base bearing

274; 274' traverse

275; 275' linear actuator

276, 276' riser base joint 277, 277' coupling joint

278, 278' engine cross member bearings

279; 279' footrest bearing element

Claims

Motorized functional fitting for a bed frame of a box spring bed or a platform bed or for a framed slatted frame Claims 1. Motorized functional fitting (10; 10'; 210; 210') for a bed frame (100; 200; 200') of a box spring bed, or a platform bed or for a framed slatted frame which bed frame (100; 100'; 200). Bed frame (50; 250; 250') with at least one center plate (55), a backrest (32) articulated thereon and a headrest (34) articulated on the backrest (32), or which bed frame (200) or which Lat - the base (200') comprises at least one frame and a backrest platform (232; 232') articulated thereon, which is connected to a headrest platform (234; 234'), with at least: one erecting frame (12; 12'; 212; 212' ), the at least two via at least one traverse (14; 14';214;214') comprises arms connected to one another, a linear drive (21; 221; 221') with a lifting tube (24; 224; 224'), which has one end on the erecting frame (12; 12') is articulated and can be supported with another end on a fixed point of the bed frame (100; 200; 200') or the frame (50, 50' 250; 250'); wherein the functional fitting (10; 10'; 210; 210') comprises a longitudinal beam (11; 211; 211') to be arranged on a bed frame central axis and to be connected to the bed frame (50) or the frame (250, 250'). to which the erection frame (12; 12': 212; 212') is articulated; wherein the erecting frame (12; 12'; 212; 212') is fork-like and has at least one lower arm which is articulated on an erecting frame base joint (15; 215; 215') on the longitudinal beam (11, 11'), wherein the erecting frame (12; 12'; 212; 212') comprises two upper arms (13; 13'; 213) which are spaced apart from one another and spaced apart from the longitudinal beam (11: 211: 211') arranged between them, wherein the traverse (14; 14'; 214; 214') above the Longitudinal member (11; 211; 211') and transversely between the lower arms and/or the upper arms (13; 13'; 213; 213') and connects them to one another, the linear drive (21; 221; 221') ) on the side member (11; 211; 211') and on the erecting frame (12; 12';212;212') and when the righting frame (12; 12';212;212') is lowered between the longitudinal beam (11; 211; 211') and one of the upper arms (13; 213; 213') of the righting frame ( 12; 12';212;212') is arranged, characterized in that for the headrest (32) or the headrest platform (232; 232') has two headrest bearing elements (19; 19'; 219; 219') are provided that the erection frame (12; 12'; 212; 212 ") each have at least one headrest steering lever (17; 217: 217') on a headrest (34) or the headrest platform (234; 234') to be connected headrest bearing element (19; 219; 219'') is articulated and the erecting companion (12; 12'; 212; 212') has at least one support element for supporting the back support (32) or the back support platform (232; 232') during erection. 2. Functional fitting (10; 10'; 210; 210') according to claim 1, characterized in that the backrest (32) or the backrest platform (232; 232') has a headrest joint (33; 33'; 232; 232 ') articulated to the headrest platform (234; 234') or to the headrest (32) that the arms of the erection frame (12; 12': 212; 212') each have a coupling joint (17.2; 17.2'; 217.2 ; 217.2 ') are connected to a headrest steering lever (17; 17'; 217; 217'), which are each connected to a headrest bearing element (19; 19'; 219; 219') are connected. 3. Functional fitting (10; 10'; 210; 210') according to one of Proverbs 1 or 2, characterized in that the pivoting angle of the link lever (17) is determined by at least one fixed stop (16.4; 216.4)) on an upper arm (13; 13';213;213') is limited. 4. Functional fitting (10; 10'; 210; 210') according to one of claims 1 to 3, characterized in that the pivoting angle of the link lever (17) for the headrest (34) or the headrest platform (34; 34' ) is limited by at least one fixed stop (16.4; 216.4) on the headrest bearing element (19; 19'). 5. Functional fitting (10; 10'; 10'; 210; 210') according to any one of claims 1 to 4, characterized in that the support element for the backrest (32) or the backrest platform (232) as a backrest steering lever (16; 216; 216') which is attached to an upper arm via a coupling joint (16.2; 216.2; 215.2'). (13; 13'; 213: 213') of the stand-up frame (12; 12; 212; 212') and via a coupling joint (16.1; 216.1; 216.1') on a fixed part on the back support (32) or the back support platform ( 232) to be attached back support bearing element (18; 18'; 218; 218') is articulated. 6. Functional fitting (10; 10'; 10'; 210; 210') according to claim 5, characterized in that the pivoting angle of the link lever (16; 16'; 216; 216') for the backrest (32) or the backrest platform (232; 232') by at least one on an upper arm (13; 13'; 213; 213') supporting fixed stop (16.4) of the link lever (16, 16'; 216; 216'). 7. Functional fitting (10; 10'; 10'; 210; 210') according to claim 6, characterized in that the fixed stop (16.4; 216.4; 216.4') is formed by a notch of the link lever (16; 216; 216')) 8. functional fitting (10) for a bed frame of a box spring bed according to any one of claims 1 to 4, characterized characterized in that the supporting element for the back support (32) is formed by at least one roller (20') which at least partially projects over the erecting frame (12'). 9. Functional fitting (10') according to claim 8, characterized in that a pair of rollers (20') is arranged on each upper arm (13'). 10. Head and backrest unit (30; 230; 230') for a Bed frame (100) of a box spring bed, which bed frame (100) comprises a bed frame (50) with at least one central panel (55) or for a platform bed with a bed frame (250), with at least: one functional fitting (10; 210) according to one of claims 1 to 7, a back support (32) or back support platform (232; 232') to be connected in an articulated manner to the central panel (55) or to the bed frame (250) via a back support joint (240). ) to which the backrest bearing element (18; 218: 218') is attached, and a headrest (34) or headrest platform (234; 234 ^' ) to which the headrest bearing element (19; 219; 219') is attached. 11. Head and backrest unit (30; 230; 230") according to claim 10, characterized in that the headrest steering lever (17; 217; 217') is longer than the backrest steering lever (16: 216; 216 ' ) and that in the lowered idle state of the erecting frame (12; 212; 212') the distance xS measured in the longitudinal direction between the coupling joints (16.1, 17.1; 216.1; 216.1'; 217.1; 217.1') on the headrest (34) and on the backrest (32) or the headrest platform (234; 234') is smaller than the distance xA between the coupling joints (16.2, 17.2 ; 216.2 ; 216.2'; 217.2 ; 217.2') on the upper arms (13; 13' ; 213 ; 213') of the erection frame (12; 212; 212'). 12. Head and backrest unit (30') for a bed frame (100') of a box spring bed, which bed frame (100') comprises a bed frame (50) with at least one central plate (55), with at least: one functional fitting ( 10') according to one of the claims 7 or 8 ; a backrest (32) to be connected in an articulated manner to the center plate (55), and a headrest articulated to the backrest (32). (34) on which the headrest bearing element (19) is attached, the at least one roller (20') having no contact with the back of the backrest (32) when the uprighting frame (12') is in the lowered rest position and in an intermediate position, in which the headrest is inclined by at least 15° with respect to a lying plane (L) formed by an upper edge of the central panel (55), abuts the rear of the backrest (32). 13. Head and backrest unit (30; 30';230;230') according to one of claims 10 to 12, characterized in that the backrest joint (31) and the headrest joint (33) are each formed by at least two spaced-apart hinges with a common pivot axis. 14. Box-spring bed comprising a bed frame (100; 100') with a rectangular bed frame (50), which has two parallel frame side parts (51, 52), head and foot frame parts (51, 53) connecting them, and at least one lying in a lying plane (L ) center panel (55) extending between said frame side members (52, 54); and having a head and backrest unit (30; 30') according to any one of claims 9 to 13, wherein the backrest (32) is connected to the center panel (55) via a backrest hinge (31). 15. Platform bed, comprising a bed frame (200) with a rectangular frame (250) which comprises two parallel frame side parts (251, 252) and head and foot frame parts (253, 254) connecting them, and with a head and and back support unit (30; 30'; 230) according to any one of claims 9 or lo. 16. Platform bed according to claim 15, characterized in that the frame (250) comprises at least one central platform (255) extending in a lying plane (L) between the frame side parts (252, 254). 17. Platform bed according to one of claims 15 or 16, characterized in that the backrest platform (232) is connected to the center platform (255) via a backrest joint (231). 18. Platform bed according to one of claims 15 to 17, characterized in that the frame (250) at least one cross member (258) extending between the frame side parts (251, 252) and the back support platform (232) is connected to the cross member (258) via a back support hinge (240). 19. Framed slatted frame (200') with a rectangular frame (250') which comprises two parallel frame side parts (251', 252') and head and foot frame parts (253', 254') connecting them, and with a head and back support unit (30; 230) according to claim 9. 20. Framed slatted frame (200 ') according to claim 19, characterized in that the frame (250') is located in a lying plane (L) between the Frame side parts (251 ', 252') extending central platform (255 ') comprises.