CN112190057B - Back rubbing prevention device and chair and bed with same - Google Patents
Back rubbing prevention device and chair and bed with same Download PDFInfo
- Publication number
- CN112190057B CN112190057B CN202011144768.8A CN202011144768A CN112190057B CN 112190057 B CN112190057 B CN 112190057B CN 202011144768 A CN202011144768 A CN 202011144768A CN 112190057 B CN112190057 B CN 112190057B
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- frame
- seat frame
- connecting rod
- back cushion
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- 230000002265 prevention Effects 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Supports for the head or the back
- A47C7/40—Supports for the head or the back for the back
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
- A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
- A47C1/0242—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by electric motors
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/02—Parts or details of bedsteads not fully covered in a single one of the following subgroups, e.g. bed rails, post rails
- A47C19/021—Bedstead frames
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C20/00—Head-, foot- or like rests for beds, sofas or the like
- A47C20/04—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C20/00—Head-, foot- or like rests for beds, sofas or the like
- A47C20/04—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination
- A47C20/041—Head-, foot- or like rests for beds, sofas or the like with adjustable inclination by electric motors
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/54—Supports for the arms
- A47C7/541—Supports for the arms of adjustable type
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nursing (AREA)
- Dentistry (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses an anti-back rubbing device which comprises a back rest frame, a seat frame, a rotary connecting piece and a back cushion piece, wherein a sliding rail is arranged between the back cushion piece and the back rest frame, and the back cushion piece is connected with the back rest frame in a sliding way through the sliding rail, so that the back cushion piece and the sliding rail can slide relative to the back rest frame. The backrest frame is rotatably connected with the seat frame, so that the relative angle between the backrest frame and the seat frame can be adjusted. One end of the rotary connecting piece is connected with the back cushion piece, and the other end of the rotary connecting piece is connected with the seat frame, so that the rotary connecting piece can drive the back cushion piece to slide relative to the back cushion frame along with the change of the relative angle between the back cushion frame and the seat frame in the process of adjusting the back by a user, the relative motion stroke of the back of the user and the back cushion piece is reduced, the back rubbing sense is reduced, and the use experience of the user is improved.
Description
Technical Field
The invention relates to the technical field of furniture, in particular to an anti-back rubbing device, and a chair and a bed with the same.
Background
Along with the improvement of the living standard of people, the requirements on the comfort level of various furniture are also higher and higher. Chairs and beds are commonly used furniture, and the comfort level of the chairs and the beds can directly influence the quality of work and life of people. Chairs or beds currently on the market are provided with an adjustable backrest structure. However, the related art chairs or beds having the adjustable backrest structure may rub the back of the user against the backrest during the backrest adjustment process, resulting in a rubbing sensation, and thus reducing the user experience.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides the back rubbing prevention device, the chair and the bed with the back rubbing prevention device, which can reduce the friction between the back of a user and the back of the user in the process of adjusting the back of the user, and reduce the back rubbing feeling, thereby improving the use experience of the user.
In a first aspect, the invention provides an anti-back rubbing device, comprising a back rest frame, a seat frame, a rotary connecting piece and a back cushion piece, wherein the sliding rail is arranged between the back cushion piece and the back rest frame, and the back cushion piece is in sliding connection with the back rest frame through the sliding rail; the backrest frame is rotationally connected with the seat frame; one end of the rotating connecting piece is connected with the back cushion piece, and the other end of the rotating connecting piece is connected with the seat frame, so that the rotating connecting piece can drive the back cushion piece to slide relative to the back frame in the process that the back frame rotates relative to the seat frame.
The back rubbing preventing device provided by the embodiment of the invention has at least the following beneficial effects: the sliding rail is arranged between the back cushion and the backrest frame, and the back cushion is in sliding connection with the backrest frame through the sliding rail, so that the back cushion and the sliding rail can slide relative to the backrest frame. The backrest frame is rotatably connected with the seat frame, so that the relative angle between the backrest frame and the seat frame can be adjusted. One end of the rotary connecting piece is connected with the back cushion piece, and the other end of the rotary connecting piece is connected with the seat frame, so that the rotary connecting piece can drive the back cushion piece to slide relative to the back cushion frame along with the change of the relative angle between the back cushion frame and the seat frame in the process of adjusting the back by a user, the relative movement stroke between the back of the user and the back cushion piece is reduced, the back rubbing sense is reduced, and the use experience of the user is improved.
In some embodiments of the present invention, the rotation connection member includes a rocker, a link, and a seat frame fixing block, one end of the rocker is connected to the back pad member, the other end is rotatably connected to one end of the link, the other end of the link is connected to the seat frame fixing block, and the seat frame fixing block is disposed at the bottom of the seat frame.
The rotating connecting piece is connected with the seat frame and the back cushion piece simultaneously, and the back cushion piece can be driven to slide relative to the seat frame along with the change of the relative angle between the seat frame and the seat frame, so that the relative motion stroke of the back of a user and the back cushion piece is reduced in the backrest adjusting process of the user, the back rubbing sense is reduced, and the use experience of the user is improved.
In some embodiments of the invention, the backrest frame is further provided with a telescopic push rod, the seat frame is provided with an extending mounting frame, one end of the push rod is rotatably connected with the extending mounting frame, the other end of the push rod is rotatably connected with the backrest frame, and the backrest frame can rotate relative to the seat frame around a connection point of the push rod and the extending mounting frame.
The telescopic push rod is arranged on the backrest frame to be connected with the stretching-out installation frame on the seat frame, so that the backrest frame is more stable in the rotating process relative to the seat frame.
In some embodiments of the invention, the back pad slidable distance is determined by the length of the link and the distance of the back pad from the point of attachment of the pushrod to the protruding mount is determined by the length of the rocker.
Through adjusting the length of connecting rod and rocker, can change the slidable distance and the position of back cushion spare, can adapt to different user's needs for back cushion spare laminating user's back more reduces and rubs the back and feel.
In some embodiments of the invention, the anti-back rubbing device further comprises a locking device for adjusting the length of the push rod, and the locking device is arranged in the push rod.
The locking means is capable of locking the length of the telescopic push rod so that the back rest can be maintained at a desired angle for the user.
In some embodiments of the present invention, the back rubbing preventing device further includes a driving device for driving the backrest frame to rotate.
The driving device can drive the backrest frame to rotate, so that the backrest frame does not need to be rotated manually, and the using convenience is improved.
In some embodiments of the invention, the slide rail is provided with a plurality of slide rails, and a plurality of slide rails are mounted to the back plate of the back cushion.
By arranging a plurality of sliding rails on the back plate of the back cushion, the sliding stability of the back cushion relative to the back rest frame can be improved.
In some embodiments of the invention, the slide rail is provided in two pieces and is provided on a first side of the back plate and on opposite sides of the first side, respectively.
Through setting up two slide rails and set up respectively in the opposite side of the first side and the first side of backplate, can realize the firm connection between back pad and the back frame and the steady motion of back pad for the back frame with lower cost.
In a second aspect, the present invention also provides a chair comprising the back rubbing device according to the first aspect.
The chair according to the embodiment of the invention has at least the following beneficial effects: the sliding rail is arranged between the back cushion and the backrest frame, and the back cushion is in sliding connection with the backrest frame through the sliding rail, so that the back cushion and the sliding rail can slide relative to the backrest frame. The backrest frame is rotatably connected with the seat frame, so that the relative angle between the backrest frame and the seat frame can be adjusted. One end of the rotary connecting piece is connected with the back cushion piece, and the other end of the rotary connecting piece is connected with the seat frame, so that the rotary connecting piece can drive the back cushion piece to slide relative to the back cushion frame along with the change of the relative angle between the back cushion frame and the seat frame in the process of adjusting the back by a user, the relative movement stroke between the back of the user and the back cushion piece is reduced, the back rubbing sense is reduced, and the use experience of the user is improved.
In a third aspect, the present invention also provides a bed comprising a back rubbing prevention device as described in the first aspect above.
The bed according to the embodiments of the invention has at least the following beneficial effects: the sliding rail is arranged between the back cushion and the backrest frame, and the back cushion is in sliding connection with the backrest frame through the sliding rail, so that the back cushion and the sliding rail can slide relative to the backrest frame. The backrest frame is rotatably connected with the seat frame, so that the relative angle between the backrest frame and the seat frame can be adjusted. One end of the rotary connecting piece is connected with the back cushion piece, and the other end of the rotary connecting piece is connected with the seat frame, so that the rotary connecting piece can drive the back cushion piece to slide relative to the back cushion frame along with the change of the relative angle between the back cushion frame and the seat frame in the process of adjusting the back by a user, the relative movement stroke between the back of the user and the back cushion piece is reduced, the back rubbing sense is reduced, and the use experience of the user is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of an anti-back rubbing device according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angle structure of the back rubbing prevention device shown in FIG. 1;
Fig. 3 is a schematic structural view of a backrest frame of an anti-back rubbing device according to an embodiment of the present invention.
Reference numerals: the back rubbing prevention device 100, a back rest frame 110, a cross beam 111, a longitudinal beam 112, a sliding block assembly 113, a seat frame 120, a rotating connecting piece 130, a rocker 131, a connecting rod 132, a seat frame fixing block 133, a back cushion 140, a sliding rail 141, a push rod 150, an extension mounting frame 160, an armrest 200 and a rotating shaft 210.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The invention provides an anti-back rubbing device, a chair and a bed with the same, wherein a sliding rail is arranged between a back cushion piece and a back rest frame, and the back cushion piece is in sliding connection with the back rest frame through the sliding rail, so that the back cushion piece and the sliding rail can slide relative to the back rest frame. The backrest frame is rotatably connected with the seat frame, so that the relative angle between the backrest frame and the seat frame can be adjusted. One end of the rotary connecting piece is connected with the back cushion piece, and the other end of the rotary connecting piece is connected with the seat frame, so that the rotary connecting piece can drive the back cushion piece to slide relative to the back cushion frame along with the change of the relative angle between the back cushion frame and the seat frame in the process of adjusting the back by a user, the relative movement stroke between the back of the user and the back cushion piece is reduced, the back rubbing sense is reduced, and the use experience of the user is improved.
Embodiments of the present invention will be further described below with reference to the accompanying drawings.
In a first aspect, embodiments of the present invention provide an anti-back rubbing device 100.
In some embodiments, referring to fig. 1, the back rubbing prevention device 100 includes a back frame 110, a seat frame 120, a rotation connecting member 130, and a back pad member 140, a sliding rail 141 is disposed between the back pad member 140 and the back frame 110, and the back pad member 140 is slidably connected with the back frame 110 through the sliding rail 141; the backrest frame 110 is rotatably connected with the seat frame 120; one end of the rotation connecting piece 130 is connected with the back cushion 140, and the other end is connected with the seat frame 120, so that the rotation connecting piece 130 can drive the back cushion 140 to slide relative to the seat frame 110 in the process that the seat frame 110 rotates relative to the seat frame 120. Thereby reducing the relative movement stroke between the back of the user and the back pad 140, reducing the back rubbing feeling and improving the use experience of the user in the process of adjusting the backrest by the user.
Specifically, in some embodiments, referring to fig. 1, the back rubbing preventing device 100 is further provided with a telescopic push rod 150, the bottom of the seat frame 120 is provided with an extension mounting frame 160, one end of the push rod 150 is rotatably connected to the extension mounting frame 160, and the other end is rotatably connected to the back frame 110, so that the back frame 110 can rotate relative to the seat frame 120 about a rotational connection point of the push rod 150 and the extension mounting frame 160. In the case that the back rest frame 110 is rotated with respect to the seat frame 120 about the rotational connection point of the push rod 150 and the extension mount 160, the telescopic push rod 150 remains rotatably connected with the extension mount 160 of the seat frame 120, so that the process of rotating the back rest frame 110 with respect to the seat frame 120 is more stable.
In some embodiments, referring to fig. 1, the rotational connector 130 of the anti-back rubbing device 100 includes a rocker 131, a link 132, and a seat frame securing block 133. The seat frame fixed block 133 is disposed at the bottom of the seat frame 120, a first end of the connecting rod 132 is rotatably connected with the seat frame fixed block 133, a second end of the connecting rod 132 is rotatably connected with a first end of the rocker 131, and a second end of the rocker 131 is rotatably connected with the back pad 140. In the process of adjusting the relative angle between the backrest frame 110 and the seat frame 120, the rotary connecting piece 130 can drive the back cushion 140 to slide relative to the backrest frame 110 along with the change of the relative angle between the backrest frame 110 and the seat frame 120, so that the relative movement stroke between the back of the user and the back cushion 140 is reduced, the back rubbing feeling is reduced, and the use experience of the user is improved.
In some embodiments, the link 132 of the rotary link 130 includes a first link having one end hinged to one end of the rocker and the other end rotatably connected to the seat frame fixing block, and a second link having one end rotatably connected to the backrest frame and the other end rotatably connected to the seat frame fixing block. The second link can limit the movement track of the first link, thereby improving the smoothness and stability of the rotation of the back frame 110 and improving the user experience.
In some embodiments, referring to fig. 1, the rotational connector 130 of the anti-back rubbing device 100 includes a rocker 131, a link 132, and a seat frame securing block 133. The seat frame fixed block 133 is disposed at the bottom of the seat frame 120, a first end of the connecting rod 132 is rotatably connected with the seat frame fixed block 133, a second end of the connecting rod 132 is rotatably connected with a first end of the rocker 131, and a second end of the rocker 131 is rotatably connected with the back pad 140. So that the rotary connecting member 130 can slide the back pad member 140 relative to the back frame 110 along with the change of the relative angle between the back frame 110 and the seat frame 120 during the adjustment of the relative angle between the back frame 110 and the seat frame 120, the slidable distance of the back pad member 140 of the back rubbing preventing device 100 is determined by the length of the connecting rod 132, and the distance from the back pad member 140 to the connection point of the push rod 150 and the extension mounting frame 160 is determined by the length of the rocker 131.
Specifically, in some embodiments, increasing the length of the link 132 increases the slidable distance of the back pad 140 when the length of the rocker 131 is fixed, and similarly decreasing the length of the link 132 decreases the slidable distance of the back pad 140 when the length of the rocker 131 is fixed. In the case of the fixed length of the link 132, increasing the length of the rocker 131 increases the distance between the back pad 140 and the connection point of the push rod 150 extending from the mounting frame 160, and similarly, in the case of the fixed length of the link 132, decreasing the length of the rocker 131 decreases the distance between the back pad 140 and the connection point of the push rod 150 extending from the mounting frame 160. Through the length of adjusting connecting rod 132 and rocker 131, can adjust the slidable distance of back of the body pad spare 140 and the distance of the tie point of back of the body pad spare 140 value push rod 150 and mounting bracket to make prevent rubbing the back and can adjust to different users, keep back of the body pad spare 140 laminating user's back, thereby at the in-process that the user adjusted the back, reduce the relative motion stroke between user's back and the back of the body pad spare 140, reduced and rubbed the back and felt, improved user's use experience.
Specifically, in some embodiments, the rocker 131 is provided with a plurality of mounting holes at intervals on the rod body, and the connecting rod 132 is provided with a plurality of mounting holes at intervals on the rod body, and the hinge between the rocker 131 and the connecting rod 132 is realized by arranging pins to pass through the mounting holes of the rocker 131 and the connecting rod 132. The installation holes at different positions on the rocker 131 and the connecting rod 132 are matched through the pins, so that the length of the rocker 131 and the connecting rod 132 can be adjusted, and the purposes of adjusting the sliding distance of the back pad 140 and the distance from the back pad 140 to the connection point of the push rod 150 and the extension installation frame 160 are achieved. And the step of replacing the rocker 131 or the connecting rod 132 with other lengths is omitted, so that the use experience of a user is improved.
Specifically, in some embodiments, the rocker 131 is provided with a plurality of round holes, the connecting rod 132 is provided with a plurality of bosses, and the round holes are matched with the bosses to realize the hinge connection between the rocker 131 and the connecting rod 132. The rocker 131 is provided with round holes at different positions, and the round holes at different positions are matched with the round holes at different positions through bosses at different positions to realize the adjustment of the lengths of the rocker 131 and the connecting rod 132, so that the purposes of adjusting the sliding distance of the back pad piece 140 and the distance from the back pad piece 140 to the connecting point of the push rod 150 and the extension mounting frame 160 are achieved. And the step of replacing the rocker 131 or the connecting rod 132 with other lengths is omitted, so that the use experience of a user is improved.
In some embodiments, the anti-rub device 100 further includes a driving device for driving the back rest 110 to rotate. The bottom of the seat frame 120 is provided with an extension mounting frame 160, and one end of the push rod 150 is rotatably connected with the extension mounting frame 160, and the other end is rotatably connected with the back frame 110, so that the back frame 110 can rotate relative to the seat frame 120 around a rotational connection point of the push rod 150 and the extension mounting frame 160. The driving device is simultaneously connected with the backrest frame 110 and the seat frame 120, and can drive the backrest frame 110 to rotate relative to the seat frame 120, so that the backrest frame 110 does not need to be manually rotated, and the convenience of use is improved.
Specifically, in some embodiments, the drive means employs a gas spring having one end connected to the back frame 110 and the other end connected to the seat frame 120, thereby driving the back frame 110 to rotate relative to the seat frame 120.
Specifically, in some embodiments, the driving device adopts a motor, the motor is disposed on the backrest frame 110 or the seat frame 120 and connected to the push rod 150, and the motor drives the push rod 150 to stretch and retract to drive the backrest frame 110 to rotate relative to the seat frame 120.
In some embodiments, a plurality of sliding rails 141 are disposed on the back plate of the back pad 140, and the plurality of sliding rails 141 are disposed parallel to each other. The back cushion 140 is connected with the back rest frame 110 through a plurality of sliding rails 141, which is equivalent to a plurality of stress points between the back cushion 140 and the back rest frame 110, so that the connection between the back cushion 140 and the back rest frame 110 is more stable, the movement process of the back cushion 140 relative to the back rest frame 110 is more stable, on one hand, the comfort level of the back rest device is improved, and on the other hand, the service life of the copying device is prolonged. The parallel arrangement of the plurality of sliding rails 141 enables the back pad 140 to move stably along the parallel arrangement direction of the plurality of sliding rails 141, so that the comfort level of the backrest device is improved, and the user experience is further improved.
Referring to fig. 2, in some embodiments, the slide rail 141 is provided with two and is provided at a first side of the back plate of the back pad 140 and opposite sides of the first side, respectively, and the two slide rails 141 are provided in parallel with each other. By providing two slide rails 141 disposed on the first side of the back plate of the back pad 140 and the opposite side of the first side, respectively, a stable connection between the back pad 140 and the back frame 110 and a stable movement of the back pad 140 relative to the back frame 110 can be achieved at a low cost. For example, the slide rails 141 may be disposed at left and right sides of the back plate of the back pad 140, respectively, and when the slide rails 141 are disposed at left and right sides of the back plate of the back pad 140, respectively, and disposed parallel to each other, the back pad 140 may slide up and down with respect to the back frame 110.
In some embodiments, the backrest frame 110 is formed by interconnecting a cross beam 111 and a longitudinal beam 112, and a plurality of cross beams 111 and longitudinal beams 112 may be provided, which is not particularly limited in the embodiment of the present invention. The position of the longitudinal beam 112 corresponding to the sliding rail 141 is also provided with a sliding block assembly 113, one end of the sliding block assembly 113 is connected with the longitudinal beam 112, and the other end is in sliding connection with the sliding rail 141.
Referring to fig. 2, the cross member 111 is provided with an upper and a lower, the side member 112 is provided with a left and a right, and both ends of the upper and lower cross members 111 are respectively connected to the left and right side members 112, to constitute the back frame 110. The backrest frame 110 is composed of the longitudinal beams 112 of the cross beam 111, so that the strength of the backrest frame 110 is ensured, the material is saved, and the manufacturing cost is reduced.
Referring to fig. 3, in some embodiments, the back rubbing prevention device 100 further includes armrests 200 connected to the back rest frame 110, and the armrests 200 are positioned at left and right sides of the back rubbing prevention device 100 and connected to the stringers 112 at left and right sides of the back rest frame 110, respectively. By providing the armrest 200, the user can use the back rubbing prevention device 100 in a more comfortable posture, and user experience is improved.
In some embodiments, the armrest 200 is capable of rotating with changes in the angle of the back frame 110. For example, when the user adjusts the angle of the back frame 110, the armrest 200 automatically rotates relative to the back frame 110, so that the user can keep a fixed angle with the ground together with the armrest 200 in the whole process of adjusting the angle of the back frame 110, thereby improving the user experience.
Specifically, in some embodiments, referring to fig. 3, the armrest 200 is coupled to the stringers 112 of the back frame 110 via the rotational axis 210 in such a manner that the armrest 200 is rotatable about the rotational axis 210. The user can adjust the armrest 200 to a proper angle by himself as required, thereby improving user experience.
In some embodiments, the armrest 200 is capable of rotating with changes in the angle of the back frame 110. For example, when the user adjusts the angle of the back frame 110, the armrest 200 automatically rotates relative to the back frame 110, so that the user can keep a fixed angle with the ground together with the armrest 200 in the whole process of adjusting the angle of the back frame 110, thereby improving the user experience.
In a second aspect, embodiments of the present invention provide a chair including the back rubbing prevention device 100 according to the first aspect.
The chair according to the embodiment of the present invention includes the back rubbing preventing device 100 according to the embodiment of the first aspect, the back rubbing preventing device 100 includes a back frame 110, a seat frame 120, a rotation connecting member 130, and a back pad member 140, a sliding rail 141 is disposed between the back pad member 140 and the back frame 110, and the back pad member 140 is slidably connected with the back frame 110 through the sliding rail 141; the backrest frame 110 is rotatably connected with the seat frame 120; one end of the rotation connecting piece 130 is connected with the back cushion 140, and the other end is connected with the seat frame 120, so that the rotation connecting piece 130 can drive the back cushion 140 to slide relative to the seat frame 110 in the process that the seat frame 110 rotates relative to the seat frame 120. Thereby reducing the relative movement stroke between the back of the user and the back pad 140, reducing the back rubbing feeling and improving the use experience of the user in the process of adjusting the backrest by the user.
Since the chair in this embodiment and the back rubbing device 100 in the foregoing embodiments belong to the same inventive concept, reference may be made to the specific embodiment of the back rubbing device 100 in the foregoing embodiments for other specific implementations of the chair in this embodiment, and for avoiding redundancy, the description of other specific implementations of the chair in this embodiment will not be repeated here.
In a third aspect, embodiments of the present invention provide a bed comprising an anti-back rub device 100 as in the embodiments of the first aspect above.
The bed according to the embodiment of the present invention includes the back rubbing preventing device 100 according to the embodiment of the first aspect, the back rubbing preventing device 100 includes a back frame 110, a seat frame 120, a rotation connecting member 130, and a back pad member 140, a sliding rail 141 is disposed between the back pad member 140 and the back frame 110, and the back pad member 140 is slidably connected with the back frame 110 through the sliding rail 141; the backrest frame 110 is rotatably connected with the seat frame 120; one end of the rotation connecting piece 130 is connected with the back cushion 140, and the other end is connected with the seat frame 120, so that the rotation connecting piece 130 can drive the back cushion 140 to slide relative to the seat frame 110 in the process that the seat frame 110 rotates relative to the seat frame 120. Thereby reducing the relative movement stroke between the back of the user and the back pad 140, reducing the back rubbing feeling and improving the use experience of the user in the process of adjusting the backrest by the user.
Since the bed in this embodiment and the back rubbing device 100 in the foregoing embodiments belong to the same inventive concept, other specific implementations of the bed in this embodiment may refer to specific examples of the back rubbing device 100 in the foregoing embodiments, and in order to avoid redundancy, other specific implementations of the chair in this embodiment are not described herein.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (7)
1. An anti-back rubbing device, comprising: the seat comprises a backrest frame, a seat frame, a rotary connecting piece and a back cushion piece, wherein a sliding rail is arranged between the back cushion piece and the backrest frame, and the back cushion piece is in sliding connection with the backrest frame through the sliding rail; the backrest frame is rotationally connected with the seat frame; one end of the rotating connecting piece is connected with the back cushion piece, and the other end of the rotating connecting piece is connected with the seat frame, so that the rotating connecting piece can drive the back cushion piece to slide relative to the back frame in the process that the back frame rotates relative to the seat frame; the rotary connecting piece comprises a rocker, a connecting rod and a seat frame fixing block, one end of the rocker is connected with the back cushion piece, the other end of the rocker is rotationally connected with one end of the connecting rod, the other end of the connecting rod is connected with the seat frame fixing block, and the seat frame fixing block is arranged at the bottom of the seat frame; the backrest frame is also provided with a telescopic push rod, the seat frame is provided with an extension mounting frame, one end of the push rod is rotatably connected with the extension mounting frame, the other end of the push rod is rotatably connected with the backrest frame, and the backrest frame can rotate relative to the seat frame around the connection point of the push rod and the extension mounting frame; the sliding distance of the back cushion piece is determined by the length of the connecting rod, and the distance from the back cushion piece to the connecting point of the push rod and the extending installation frame is determined by the length of the rocking rod;
the connecting rod of the rotary connecting piece comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with one end of the rocker, the other end of the first connecting rod is rotationally connected with the seat frame fixing block, one end of the second connecting rod is rotationally connected with the backrest frame, and the other end of the second connecting rod is rotationally connected with the seat frame fixing block;
Under the condition that the length of the rocking rod is fixed, the sliding distance of the back cushion part can be increased by increasing the length of the connecting rod, under the condition that the length of the rocking rod is fixed, the sliding distance of the back cushion part can be reduced by decreasing the length of the connecting rod, under the condition that the length of the connecting rod is fixed, the distance from the back cushion part to the connecting point of the push rod and the extending installation frame can be increased by increasing the length of the rocking rod, and under the condition that the length of the connecting rod is fixed, the distance from the back cushion part to the connecting point of the push rod and the extending installation frame can be reduced by decreasing the length of the rocking rod;
The rocker is provided with a plurality of mounting holes at intervals on the rod body, the connecting rod is provided with a plurality of mounting holes at intervals on the rod body, and the hinge joint between the rocker and the connecting rod is realized by arranging a pin to pass through the mounting holes of the rocker and the connecting rod.
2. An anti-back rubbing device according to claim 1, further comprising a locking device for adjusting the length of the push rod, the locking device being disposed within the push rod.
3. An anti-back rubbing device according to claim 1, further comprising a drive means for driving the back rest to rotate.
4. The back rubbing prevention apparatus according to claim 1, wherein the slide rail is provided with a plurality of slide rails, and a plurality of slide rails are mounted on the back plate of the back pad.
5. The back rubbing prevention apparatus according to claim 4, wherein the sliding rail is provided with two sliding rails and is disposed at a first side of the back plate and opposite sides of the first side, respectively.
6. A chair comprising an anti-back rubbing device according to any one of claims 1 to 5.
7. A bed comprising an anti-back rubbing device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144768.8A CN112190057B (en) | 2020-10-23 | 2020-10-23 | Back rubbing prevention device and chair and bed with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144768.8A CN112190057B (en) | 2020-10-23 | 2020-10-23 | Back rubbing prevention device and chair and bed with same |
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| Publication Number | Publication Date |
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| CN112190057A CN112190057A (en) | 2021-01-08 |
| CN112190057B true CN112190057B (en) | 2024-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011144768.8A Active CN112190057B (en) | 2020-10-23 | 2020-10-23 | Back rubbing prevention device and chair and bed with same |
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| Country | Link |
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| CN (1) | CN112190057B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213605397U (en) * | 2020-10-23 | 2021-07-06 | 广东银狐医疗科技股份有限公司 | Back rubbing prevention device and chair and bed with same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2029917C (en) * | 1990-11-14 | 2003-01-21 | Richard Eakins | Adjustable chair |
| US6015189A (en) * | 1991-11-05 | 2000-01-18 | Genus Medical Inc. | Adjustable chair |
| CN202122335U (en) * | 2011-06-14 | 2012-01-25 | 傅建华 | Chair with movable backrest |
| CN104545063B (en) * | 2014-12-23 | 2018-03-13 | 广东银狐医疗科技股份有限公司 | A kind of design method of back movement mechanism and thus obtained back movement mechanism |
| CN204635609U (en) * | 2015-03-28 | 2015-09-16 | 浙江永艺家具股份有限公司 | A kind of anti-chopping Dual Drive mechanical extending device |
| CN204821214U (en) * | 2015-08-26 | 2015-12-02 | 福建麦凯婴童用品有限公司 | Children's safety seat of adjustable back and handrail |
| US10492613B2 (en) * | 2017-09-20 | 2019-12-03 | La-Z-Boy Incorporated | Legrest mechanism for furniture member |
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2020
- 2020-10-23 CN CN202011144768.8A patent/CN112190057B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213605397U (en) * | 2020-10-23 | 2021-07-06 | 广东银狐医疗科技股份有限公司 | Back rubbing prevention device and chair and bed with same |
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| CN112190057A (en) | 2021-01-08 |
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