EP4098833B1 - Door actuating linkage - Google Patents

Description

The invention relates to a door operator linkage for mounting on an output shaft of a door operator. The invention also shows a door operator arrangement and a revolving door arrangement, each of which comprises the door operator linkage.

Door closers and door drives are known from the state of the art and are collectively referred to as door operators. Door closers have an energy storage device, such as a spring. When a person opens the door manually, this energy storage device is charged. When the door is closed, the energy storage device is discharged. In the state of the art, there are also door closers with a servo drive that supports the charging of the energy storage device when the door is opened. Door drives, on the other hand, have an electric or hydraulic drive that applies the full force to open and/or close a door. In addition to the drive, an energy storage device can be used in the door drive.

Door operators usually have an output shaft. The output shaft is connected to a door operator rod in a rotationally fixed manner. When the door operator is mounted on a door leaf, the door operator rod transfers the force to the frame or wall. If, however, the door operator is attached to the frame or wall, the rod transfers the force to the door leaf. For different applications, a cable guide through the door operator rod or along the door operator rod is desirable. One or more cables can be laid along the cable guide for both data transmission and power supply. For example, a drive in the Door operators can be supplied with energy and/or controlled. But even when the door operator is mounted on the wall or frame, the cable routing can be used to supply energy, for example to a door lock; it is also possible to exchange data with the door operator, door lock or another element on the door leaf via the cable routing. US 10 982 480 B2 reveals an example of a door operator linkage.

The object of the present invention is to provide a door operator linkage which, with a simple structure, enables reliable and low-maintenance operation of a door. In particular, the door operator linkage should enable secure cable routing.

The problem is solved by the features of independent claim 1.

The dependent claims relate to advantageous embodiments of the invention.

The invention shows a door operator linkage with a lever and a linkage head. The lever extends along a longitudinal axis. In particular, the longitudinal axis is located in the middle of the lever. One end of the lever can be connected, for example, to a sliding piece that is guided in a slide rail. Alternatively, this end of the lever can also be rotatably connected to another lever, so that these two levers together form a scissor linkage. The other end of the lever merges with a crank into the linkage head of the door operator linkage.

The rod head is designed for rotationally fixed mounting on an output shaft of a door operator. In particular, the rod head is attached to the output shaft of a door operator and is thereby rotationally fixedly connected to the output shaft. To describe the invention, a Shaft axis of the output shaft of the door operator is defined. The position and alignment of the shaft axis also results from the design of the rod head. The door operator can basically be a door closer, servo door closer or door drive.

The offset between the lever and the rod head creates a step. When the door operator is mounted on the door leaf, the lever extends over the door leaf to the output shaft of the door operator. The door operator or the output shaft is usually located slightly lower than the top edge of the door leaf. This means that the step created by the offset reaches behind the door leaf.

At the same time as the step, the crank creates a free space which is designed according to the invention for cable routing. In particular, the door operator linkage comprises at least one cable and this cable runs through the free space.

The free space is limited by the rod head and by a crank surface of the lever. The crank surface of the lever is in particular a surface facing the shaft axis. In particular, the crank surface is created by the lever ending in the crank area or being bent downwards. The crank surface in particular merges into the top of the rod head.

When the door operator is mounted on the door leaf, the output shaft to be used protrudes upwards from the door operator. Accordingly, the rod head is located above the door operator. The free space defined here is thus limited on its underside by the rod head. The offset surface forms a lateral limitation. At the top, i.e. on the side opposite the rod head, the free space can be theoretically remain open. However, it is preferred that an appropriate free space panel closes off the free space on the top.

The offset surface forms a boundary of the free space on only one side. Another side, which is particularly semi-circular, can be demarcated by a corresponding radial cladding.

The elements "lever" and "rod head" described here describe in particular only the corresponding load-bearing components of the door operator rod. The lever and/or the rod head can be completely or partially surrounded by a cover. In particular, the lever and the rod head are made of metal. The lever and the rod head can be made in one piece or can be two components connected to one another. The surrounding cover is made in particular of plastic; but can also be made of sheet metal. To describe the position of the cover, the invention refers to radial cover, free space cover and lever cover. These covers can be connected to one another in one piece or represent separate components. The lever cover is located in particular on one or more sides of the lever. As will be described in more detail, according to the invention a cable channel is formed in the lever and/or between the lever and its lever cover and/or in the lever cover.

The at least one cable guided through the free space is guided in this cable channel along the lever and thus parallel to the longitudinal axis. From the free space, the cable or a corresponding additional cable is guided preferably parallel to the shaft axis in the direction of the door operator and is preferably connected to electronics and/or electrical systems in the door operator.

When using the door operator rod on a door operator, the rod head including the lever rotates together with the output shaft relative to the remaining components of the door operator; depending on the application, a rotational movement of up to 180° can occur here. This rotational movement causes at least one cable to move or bend in the free space. In order to allow the largest possible bending radii of the cable in the free space, the free space is preferably designed to be as large as possible. In particular, this applies to the extent of the free space in a plane perpendicular to the shaft axis. At the same time, however, the size of the free space is limited by the offset. The offset must be positioned as close as possible to the rod head so that the step created by the offset is also positioned as close as possible to the rod head or the shaft axis and can therefore reach behind the door leaf. In addition, the door operator rod at the transition from the lever to the rod head must be sufficiently stable to transmit the corresponding forces.

To further design the crank, an imaginary boundary surface is defined according to the invention. This imaginary boundary surface is perpendicular to the longitudinal axis of the lever. The boundary surface is in particular vertical and thus parallel to the shaft axis. The lever projects in the direction of the rod head or in the direction of the shaft axis up to this imaginary boundary surface. The end of the lever facing the rod head thus defines the position of this imaginary boundary surface. In particular, the crank surface of the lever, i.e. the surface that laterally delimits the free space, projects up to this imaginary boundary surface. If the lever were designed to be as large as possible and thus with an optimal design in terms of stability, the lever would project with its entire crank surface up to this boundary surface. According to the invention, it is provided that the The crank surface is partially set back from this interface in order to expand the free space. The lever, in particular the crank surface, thus protrudes at least with one tip up to the interface. However, not the entire crank surface overlaps with the imaginary interface, but only at least one point of the crank surface.

In an alternative formulation, it is defined that the crank surface is preferably not perpendicular to the longitudinal axis of the lever over its entire area.

Furthermore, it is preferably defined that the top of the lever is higher than the top of the rod head and this height difference determines the height of the free space. The crank surface preferably merges into the top of the rod head on the one hand and the top of the lever on the other. Furthermore, it is preferably provided that the underside of the rod head, i.e. the side facing the door operator, is lower than the underside of the lever.

According to the invention, the crank surface has an oblique section. The oblique section can extend over the entire crank surface, so that the entire crank surface is oblique. Alternatively, it is also possible for the oblique section to extend over only part of the crank surface, so that only part of the crank surface is oblique. In this case, an oblique design is to be understood with a corresponding angle deviating from 90° with respect to the longitudinal axis of the lever. The oblique section is preferably oblique with respect to the imaginary boundary surface in such a way that the free space over its entire height (defined parallel to the shaft axis) is increased by the oblique design. An oblique, In particular, the transition from the top of the lever to the top of the rod head inclined along the shaft axis is not considered to be an "inclined section".

In the inclined section, the offset surface preferably forms an angle α with respect to the longitudinal axis. An upper limit of the angle α is preferably 89°, more preferably 80°, particularly preferably 75°. Additionally or alternatively, a lower limit of the angle α is defined at preferably 30°, more preferably 40°, particularly preferably 45°. These angle ranges provide a sensible balance between a stable connection between the lever and the rod head and the largest possible design of the free space.

According to the invention, it is defined that the bevel section of the crank surface extends from an acute-angled end to an obtuse-angled end. The acute-angled end of the bevel section is located closer to the interface than the obtuse-angled end. If the bevel section extends over the entire crank surface, it is preferably provided that the acute-angled end touches the interface.

As already described, according to the invention there is at least one cable duct in the lever and/or between the lever and a lever cover of the door operator linkage surrounding the lever and/or in the lever cover. This cable duct opens into the free space at the obtuse-angled end of the inclined section.

The cable duct preferably runs horizontally to the side of the longitudinal axis in the lever or next to the lever. Horizontal to the side means that the cable duct preferably does not run above or below the lever, but next to the lever. This ensures that the lever is constructed as low as possible.

In addition to the inclined section, the crank surface can have a convex contact section. The cable can rest against this section or the cable can be bent around this section. In particular, the contact section only comes into contact with the cable during a relatively large rotational movement in one of the two directions of rotation. The contact section can be formed by an additional element that is connected to the rod head and/or the lever and thus forms a section of the crank surface. However, the contact section can also be formed by an integral part of the lever.

From the free space, the cable is routed in the direction of the door operator. In particular, the cable is routed laterally past the rod head. A swivel link is preferably used for this purpose. This swivel link is designed for a rotationally fixed connection to the door operator. This causes the door operator rod including the output shaft to rotate relative to this swivel link. The swivel link is positioned radially outside the rod head in particular. The swivel link is preferably used to route the cable from the free space into the door operator, deflected by 90°. The cable can be routed through the swivel link. Alternatively, the cable can also be connected to the swivel link, with another cable or other line leading from the swivel link to the door operator.

Preferably, it is provided that the rod head, and thus also the lever and the output shaft, can be rotated by at least 135°, preferably by at least 180°, relative to the pivoting member. The clearance must be large enough to allow the cable a sufficiently large bending radius in the clearance at this large angle of rotation.

As described, the pivoting member is preferably located radially outside the rod head. Furthermore, the radial casing is preferably located radially outside the pivoting member, so that the pivoting member is arranged between the radial casing and the rod head.

A form-locking element is preferably located on the side of the rod head facing away from the free space. This form-locking element enables the rotationally fixed connection to the output shaft. In particular, the form-locking element is an internal polygon that is plugged onto the external polygon of the output shaft.

The form-locking element can preferably be detached from the remaining component of the rod head without causing any damage and can therefore be replaced and/or rotated. It is preferably provided that the form-locking element can be fastened to the rod head in different rotational positions relative to the rod head.

The lever and the rod head can be made as one piece, for example from a bent piece of metal. The offset is formed in particular by a bending edge that is inclined to the longitudinal axis.

Alternatively, the lever and the rod head are two components welded together. Particularly preferably, the lever overlaps with the rod head, with one end of the lever forming the offset surface and one end of the rod head forming the step.

In particular, it is intended that the lever and the rod head are welded flat in the overlap. In particular, a material accumulation is positioned between the lever and the rod head, which is positively connected to the two overlapping surfaces of the lever and the rod head via resistance welding.

The invention further comprises a door operator arrangement. The advantageous embodiments presented in the context of the door operator linkage and the subclaims listed for the door operator linkage are correspondingly advantageously applied to the door operator arrangement.

The door operator assembly comprises a door operator with an output shaft and the door operator linkage, wherein the linkage head is designed for rotationally fixed mounting on the output shaft. Preferably, the linkage head is rotationally fixedly mounted on the output shaft.

The invention further comprises a revolving door arrangement. The advantageous embodiments presented in the context of the door operator linkage and the subclaims listed for the door operator linkage are correspondingly advantageously applied to the revolving door arrangement.

The revolving door arrangement comprises the previously described door operator arrangement and a door leaf, whereby the door operator is mounted on the door leaf and the door operator rod is designed for mounting on the frame or wall, whereby a shoulder formed by the crank engages behind the door leaf. The lever thus protrudes from the frame or wall over the upper edge of the door leaf and extends slightly downwards due to its crank in order to be connected to the output shaft of the door operator. The crank creates a step that grips behind the door leaf on the side of the door operator.

Fig. 1

eine erfindungsgemäße Drehtür-Anordnung mit einer erfindungsgemäßen Türbetätiger-Anordnung und erfindungsgemäßem Türbetätiger-Gestänge gemäß einem Ausführungsbeispiel,

Fig. 2

eine Seitenansicht zur Darstellung aus Fig. 1,

Fig. 3 u. 4

ein Detail des erfindungsgemäßen Türbetätiger-Gestänges gemäß dem Ausführungsbeispiel in unterschiedlichen Drehpositionen,

Fig. 5

ein weiteres Detail des erfindungsgemäßen Türbetätiger-Gestänges gemäß dem Ausführungsbeispiel,

Fig. 6

einen Gestängekopf des erfindungsgemäßen Türbetätiger-Gestänges gemäß dem Ausführungsbeispiel, und

Fig. 7

ein Detail des Gestängekopfes des erfindungsgemäßen Türbetätiger-Gestänges gemäß dem Ausführungsbeispiel.

The invention will now be described in more detail using an embodiment.

Fig. 1

a revolving door arrangement according to the invention with a door operator arrangement according to the invention and a door operator linkage according to the invention according to an embodiment,

Fig. 2

a side view for displaying Fig. 1 ,

Fig. 3 and 4

a detail of the door operator linkage according to the invention according to the embodiment in different rotational positions,

Fig. 5

a further detail of the door operator linkage according to the invention according to the embodiment,

Fig. 6

a rod head of the door operator rod according to the invention according to the embodiment, and

Fig. 7

a detail of the rod head of the door operator rod according to the invention according to the embodiment.

In the following, a revolving door arrangement 200 with a door operator arrangement 100 including door operator linkage 1 is described in detail using all figures.

Fig. 1 shows a revolving door arrangement 200 with a frame 201 and a door leaf 202 rotatably received in the frame 201. The revolving door arrangement 200 also includes the door operator arrangement 100.

The door operator arrangement 100 comprises a door operator 101 with an output shaft 102, designed here as a door drive. The output shaft 102 rotates about a shaft axis 103. The door operator 101 is attached to the door leaf 202. The door operator arrangement 100 also has the door operator linkage 1. In the example shown, the door operator linkage 1 comprises a lever 2 which is connected in a rotationally movable manner to a sliding piece 5. The sliding piece 5 is guided in a linearly movable manner in a sliding rail 4. The sliding rail 4 is attached to the frame 201.

The detailed structure of the door operator linkage 1 is particularly evident from the Fig. 2 to 7 .

The lever 2 merges into the rod head 3 with a crank 6. This crank 6 creates a free space 9. The shaft axis 103 runs through this free space 9, since the free space 9 is located above the output shaft 102.

A bottom side of the free space 9 is limited by the top side of the rod head 3. A lateral boundary of the free space 9 forms a crank surface 7. This crank surface 7 is created by the crank 6. In the embodiment shown, the crank surface 7 is formed by a front side of the lever 2 facing the shaft axis 103.

The crank 6 creates the crank surface 7 on one side and on the opposite side, in the example shown, the lower side of the Door operator linkage 1 a paragraph 8. As the illustration in Fig. 2 shows, the lever 2 projects beyond the door leaf 202 and extends downwards through the crank 6 with the rod head 3 in order to enable a connection to the output shaft 102. The shoulder 8 engages behind the door leaf 202.

For example, Fig. 3 and 5 an imaginary boundary surface 10. This imaginary boundary surface 10 is perpendicular to a longitudinal axis 11 of the lever 2 and parallel to the shaft axis 103. At the same time, the front end of the lever 2 or the crank surface 7 defines the position of this imaginary boundary surface 10. The crank surface 7 is set back from the boundary surface 10 in order to make the free space 9 as large as possible.

In the embodiment shown, the offset surface 7 is formed with an oblique section 12 at an angle to the longitudinal axis 11 and thereby forms an angle α of approximately 35°. This oblique section 12 extends from an acute-angled end 15 to an obtuse-angled end 16.

Fig. 3 and 4 show a variant in which the crank surface 7 has an inclined section 12 and a contact section 13. In the construction shown, the contact section 13 is formed by an additional element 14. This additional element 14 is assigned to the lever 2. The contact section 13 can also be formed by an integral part of the lever.

Fig. 5 shows that the entire crank surface 7 can also be formed by the inclined section 12, so that the acute-angled end 15 of the inclined section 12 extends to the imaginary boundary surface 10.

The advantage of the installation section 13 in its convex design becomes apparent when considering the Fig. 3 and 4 These figures show a cable 18 being guided through the free space 9. The door operator linkage 1 can be rotated by up to 180° relative to the door operator 101. Such a rotation is not possible when considering the Fig. 3 and 4 evident. In the Fig. 4 The cable 18 comes into contact with the contact section 13 when the twist shown is reached or when the twist is even greater. The concave design of the contact section 13 ensures a defined bending of the cable 18 with the largest possible radius.

Fig. 3 and 4 make it clear that a cable channel 19 is formed laterally offset from the longitudinal axis 11 next to the lever 2. The cable 18 runs through this cable channel 19. The cable channel 19 is located inside a lever cover 20.

The cable duct 19 opens into the free space 9 at the obtuse-angled end 16.

Furthermore, Fig. 3 and 4 that the door operator rod 1 comprises a pivoting member 17. This pivoting member 17 is to be firmly connected to the door operator 101 and serves to redirect the cable routing from the essentially horizontal cable routing in the free space 9 to a vertical routing in the direction of the door operator 101.

The pivot link 17 is located radially outside the rod head 3 and radially inside a radial cover 21. This radial cover 21 surrounds the rod head 3 and laterally limits the free space 9, in addition to the crank surface 7.

An upper side of the free space 9 opposite the rod head 3 can be closed by a free space cover (not shown).

This free space cover then forms the upper boundary of the free space 9. The upper side of the lever 2 can also be covered accordingly.

Fig. 6 clarifies a radial distance 22, measured perpendicular to the shaft axis 103, from the shaft axis 103 to the outer edge of the rod head 3. This radial distance 22 must be designed accordingly small, otherwise paragraph 8 (see Fig. 2 ) would collide with the door leaf 202. The overlap area between lever 2 and rod head 3 is correspondingly limited. Fig. 6 shows that a material accumulation 23 is applied to the rod head 3. This is followed by an overlap of the lever 2 and the rod head 3 and a welding of these two elements, in particular a surface welding by means of a resistance welding process.

Fig. 5, 6 and 7 show that the rod head 3 has a form-locking element 24. This form-locking element 24 comprises an internal polygon for attachment to the output shaft 102.

Fig. 7 clarifies that the form-locking element 24 can be separated from the remaining component of the rod head 3 without causing any damage. As a result, the form-locking element 24 can be exchanged and/or mounted on the rod head 3 in different rotational positions relative to the rod head 3.

list of reference symbols

1

door operator linkage

2

lever

3

rod head

4

slide rail

5

sliding piece

6

cranking

7

crank surface

8

Paragraph

9

open space

10

imaginary interface

11

longitudinal axis

12

inclined section

13

investment section

14

additional element

15

acute-angled end

16

obtuse-angled end

17

swivel link

18

Cable

19

cable duct

20

lever cover

21

radial fairing

22

radial distance

23

accumulation of material

24

form-fitting element

100

door operator arrangement

101

door operator

102

output shaft

103

shaft axis

200

revolving door arrangement

201

frame

202

door leaf

Claims (15)

1. A door actuator linkage (1) comprising

   a lever (2) which extends along a longitudinal axis (11) and merges into a linkage head (3) via a crank (6),

   wherein the linkage head (3) is designed for rotationally fixed mounting on an output shaft (102) of a door actuator (101), wherein a free space (9) for cable routing is formed by the crank (6), and the free space (9) is delimited by the linkage head (3) and by a crank surface (7) of the lever (2),

   wherein the lever (2) extends up to an imaginary boundary surface (10), which is defined perpendicular to the longitudinal axis (11), and wherein the crank surface (7) is partially recessed from this boundary surface (10) in order to expand the free space (9), characterised in that

   the crank surface (7) has an inclined section (12) which extends over the entire crank surface (7) or a part of the crank surface (7),

   wherein the inclined section (12) extends from an acute-angled end (15) to an obtuse-angled end (16) and wherein the acute-angled end (15) is closer to the boundary surface (10) than the obtuse-angled end,

   wherein in the lever (2) and/or between the lever (2) and a lever cover (20) of the door actuator linkage (1) surrounding the lever (2)
   and/or in the lever cover (20) is formed at least one cable channel (19),

   wherein the cable channel (19) opens into the free space (9) at the obtuse-angled end (16).
2. The door actuator linkage according to claim 1, wherein the crank surface (7) in the inclined section (12) forms an angle (α) with respect to the longitudinal axis (11), wherein an upper limit of the angle (α) is 89°, preferably 80°, particularly preferably 75°, and/or a lower limit of the angle (α) is 30°, preferably 40°, particularly preferably 45°.
3. The door actuator linkage according to one of the preceding claims, wherein the cable channel (19) runs horizontally laterally of the longitudinal axis (11).
4. The door actuator linkage according to one of the preceding claims, wherein the crank surface (7) has a convex bearing section (13) which extends over a part of the crank surface (7) and is designed for resting a cable (18).
5. The door actuator linkage according to claim 4, wherein the bearing section (13) is formed by an additional element (14) which is connected to the linkage head (3) and/or the lever (2) and thereby forms a section of the crank surface (7).
6. The door actuator linkage according to claim 4, wherein the bearing section (13) is formed by an integral component of the lever (2).
7. The door actuator linkage according to one of the preceding claims, comprising

   • a pivot member (17) which is designed for stationary mounting on the door actuator (101) and is rotatable relative to the linkage head (3),

   • and a cable (18) which runs through the free space to the pivot member (17),

   • wherein the linkage head (3) is rotatable by at least 135°, preferably by at least 180°, relative to the pivot member (17).
8. The door actuator linkage according to claim 7, wherein the pivot member (17) is arranged radially outside the linkage head (3) and within a radial cover (21) surrounding the linkage head (3).
9. The door actuator linkage according to one of the preceding claims, wherein the free space (9) on the side opposite the linkage head (3) is delimited by a free space cover.
10. The door actuator linkage according to one of the preceding claims, wherein a form-fitting element (24) is arranged, preferably so as to be replaceable, on the side of the linkage head (3) facing away from the free space (9), wherein the form-fitting element (24) is designed for being connected in a form-fitting manner to the output shaft (102).
11. The door actuator linkage according to one of the preceding claims, wherein the lever (2) overlaps with the linkage head (3) and is welded flat at the overlap.
12. The door actuator linkage according to one of the preceding claims, wherein the lever (2) is rotatably connected to another lever to form a scissor linkage.
13. The door actuator linkage according to one of claims 1 to 11, comprising a slide rail (4) and a slide piece (5) linearly guided in the slide rail (4), wherein the lever (2) is connected to the slide piece (5) so as to be rotatably movable.
14. A door actuator arrangement (100), comprising

    • a door actuator (101) with an output shaft (102)

    • and a door actuator linkage (1) according to one of the preceding claims, wherein the linkage head (3) is designed for rotationally fixed mounting on the output shaft (102).
15. A revolving door arrangement (200) comprising a door actuator arrangement (100) according to claim 14 and a door leaf (202), wherein the door actuator (101) is mounted on the door leaf (202) and the door actuator linkage (1) is designed for mounting on the frame (201) or wall, and wherein a shoulder (8) formed by the crank (6) engages behind the door leaf (202).

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