CN221060110U - Backrest device and seat - Google Patents
Backrest device and seat Download PDFInfo
- Publication number
- CN221060110U CN221060110U CN202322763132.7U CN202322763132U CN221060110U CN 221060110 U CN221060110 U CN 221060110U CN 202322763132 U CN202322763132 U CN 202322763132U CN 221060110 U CN221060110 U CN 221060110U
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- support
- rotating shaft
- backrest
- utility
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- 238000005452 bending Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 210000004705 lumbosacral region Anatomy 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a backrest device and a seat, wherein the backrest device comprises: the connecting device comprises a connecting frame and a supporting component, wherein connecting arms are arranged at two opposite ends of the connecting frame, each connecting arm is provided with a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are staggered; the support assembly comprises a back support and a back rest, wherein the lower part of the back support is connected with the first rotating shaft and can rotate around the first rotating shaft, the lower part of the back rest is connected with the second rotating shaft and can rotate around the second rotating shaft, and the upper part of the back rest is movably connected with the upper part of the back support; the back support can rotate around the first rotating shaft, the back support can rotate around the second rotating shaft, and the movable connection part of the upper part of the back support and the upper part of the back support generates relative displacement due to the dislocation arrangement of the first rotating shaft and the second rotating shaft, so that the relative displacement of the back support is reduced, the offset distance between the back of a user and the back support is reduced, the back of the user can be better supported by the waist support in the backward leaning process, and the user experience is improved.
Description
Technical Field
The utility model relates to the technical field of seat manufacturing, in particular to a backrest device and a seat.
Background
The existing office reclining chair generally comprises a chair back, a seat cushion and an air rod, wherein the chair back is arranged at the rear side of the seat cushion, when a person leans back to exert pressure on the chair back, the chair back rotates backwards around the seat cushion to realize the reclining function of the reclining chair, but in the related art, the rotating points of many chair backs are positioned below the seat cushion, the rotating points of the backs of the person are positioned above the seat cushion when the person leans back, so that the back and the chair back deviate when the person leans back, the waist of the user is easy to hang or the chair back is easy to rub back, and the use experience of the user is influenced.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a backrest device in which the backrest is rotatable about a first axis of rotation and the backrest is rotatable about a second axis of rotation. Because the first rotating shaft and the second rotating shaft are arranged in a staggered mode, the movable connection part of the upper part of the backrest and the upper part of the backrest bracket generates relative displacement, so that the relative displacement of the backrest is reduced, the offset distance between the back of a user and the backrest is reduced, the back of the user can be better supported by the waist rest in the backward leaning process, and the user experience is improved.
In a second aspect, the utility model also provides a seat using the backrest device.
An embodiment of the present utility model provides a backrest device including: the connecting device comprises a connecting frame and a supporting component, wherein connecting arms are arranged at two opposite ends of the connecting frame, each connecting arm is provided with a first rotating shaft and a second rotating shaft, and the first rotating shafts and the second rotating shafts are staggered; the support assembly comprises a back support and a back rest, wherein the lower part of the back support is connected with the first rotating shaft and can rotate around the first rotating shaft, the lower part of the back rest is connected with the second rotating shaft and can rotate around the second rotating shaft, and the upper part of the back rest is movably connected with the upper part of the back support; when the backrest is stressed, the backrest and the backrest bracket can rotate together.
The backrest device provided by the embodiment of the first aspect of the utility model has at least the following beneficial effects: in the use, when the user leans back to applying pressure to the back, the back can rotate around the second pivot, and the back support also rotates around first pivot simultaneously, and when back and back support rotate, because first pivot and second pivot dislocation set, the swing joint department on the upper portion of back and the upper portion of back support produces relative displacement to reduce the relative displacement of back, thereby reduce the offset distance of user's back and back, so that the back of support in the back of the back in-process can be better support user's back, be favorable to improving user experience.
According to the backrest device provided by the embodiment of the first aspect of the utility model, the upper part of the backrest support is provided with the slot with the opening facing the top of the backrest, the upper part of the backrest is provided with the plugboard extending towards the backrest support, and the plugboard is inserted into the slot and can slide in the slot.
According to the back rest device provided by the embodiment of the first aspect of the utility model, the first rotating shaft is located at the outer side of the connecting arm, and the second rotating shaft is located at the inner side of the connecting arm.
According to the backrest device provided by the embodiment of the first aspect of the utility model, the connecting piece is arranged between the backrest support and the backrest, the connecting piece comprises the first connecting part, the second connecting part and the elastic bending part, the first connecting part is connected with the second connecting part through the elastic bending part, the first connecting part is fixed on the backrest support, and the second connecting part is fixed on the backrest.
According to the backrest device provided by the embodiment of the first aspect of the utility model, the middle part of the backrest bracket is provided with the bearing surface, the middle part of the backrest is a supporting part, the first connecting part is attached to and fixed on the bearing surface, and the second connecting part is fixed on the supporting part.
According to an embodiment of the first aspect of the present utility model, the support assembly further includes a lumbar support, and the lumbar support is mounted on a front side of the support portion.
According to the back rest device provided by the embodiment of the first aspect of the utility model, the waist rest is provided with a flexible supporting surface, an adjusting mechanism is arranged between the supporting part and the flexible supporting surface, and the adjusting mechanism is used for pushing the flexible supporting surface to enable the flexible supporting surface to move in a direction towards or away from the supporting part.
According to an embodiment of the first aspect of the present utility model, the adjustment mechanism includes an adjustment handle rotatably connected to the support portion, and an adjustment cam mounted to the adjustment handle and abutting the flexible support surface.
According to a second aspect of the utility model there is provided a seat comprising a back rest arrangement according to an embodiment of the first aspect of the utility model.
The seat provided by the embodiment of the second aspect of the utility model has at least the following beneficial effects: in the use, when the user leans back to applying pressure to the back, the back can rotate around the second pivot, and the back support also rotates around first pivot simultaneously, and when back and back support rotate, because first pivot and second pivot dislocation set, the swing joint department on the upper portion of back and the upper portion of back support produces relative displacement to reduce the relative displacement of back, thereby reduce the offset distance of user's back and back, so that the back of support in the back of the back in-process can be better support user's back, be favorable to improving user experience.
According to a second aspect of the present utility model, there is provided a seat further comprising two armrests, the two armrests being disposed on opposite sides of the back support.
Additional aspects and advantages of the utility model 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 utility model.
Drawings
Additional aspects and advantages of the present utility model 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 view of a backrest device according to an embodiment of a first aspect of the present utility model;
FIG. 2 is an exploded view of a back rest assembly according to an embodiment of the first aspect of the present utility model;
FIG. 3 is a schematic view of a back bracket of a back rest device according to an embodiment of the first aspect of the present utility model;
FIG. 4 is a schematic view of the structure of a backrest of the backrest device according to the embodiment of the first aspect of the present utility model;
Fig. 5 is a schematic structural view of a seat according to a second embodiment of the present utility model.
The reference numerals are as follows:
A connection frame 100; a first rotation shaft 101; a second rotation shaft 102; a back support 110; a slot 111; bearing surface 112; a backrest 120; a board 121; a support 122; a connecting member 130; lumbar support 140; an adjustment handle 150; an armrest 160.
Detailed Description
Embodiments of the present utility model 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 utility model.
In the description of the present utility model, 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 utility model 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 utility model.
In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present utility model, 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 utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The existing office reclining chair generally comprises a chair back, a seat cushion and an air rod, wherein the chair back is arranged at the rear side of the seat cushion, when a person leans back to exert pressure on the chair back, the chair back rotates backwards around the seat cushion to realize the reclining function of the reclining chair, but in the related art, the rotating points of many chair backs are positioned below the seat cushion, the rotating points of the backs of the person are positioned above the seat cushion when the person leans back, so that the back and the chair back deviate when the person leans back, the waist of the user is easy to hang or the chair back is easy to rub back, and the use experience of the user is influenced.
To solve this problem, the embodiment of the first aspect of the present utility model provides a backrest device, in which the backrest frame 110 can rotate around the first rotation axis 101, and the backrest 120 can rotate around the second rotation axis 102. Because the first rotating shaft 101 and the second rotating shaft 102 are arranged in a staggered manner, the movable connection part of the upper part of the backrest 120 and the upper part of the backrest bracket 110 generates relative displacement, so that the relative displacement of the backrest 120 during rotation is reduced, and the offset distance between the back of a user and the backrest 120 is reduced, so that the backrest 120 can better support the back of the user during the reclining process, thereby being beneficial to improving the user experience.
Referring to fig. 1 to 4, a reclining device according to an embodiment of a first aspect of the present utility model includes: the connecting frame 100 and the supporting component, the two opposite ends of the connecting frame 100 are provided with connecting arms, each connecting arm is provided with a first rotating shaft 101 and a second rotating shaft 102, and the first rotating shaft 101 and the second rotating shaft 102 are staggered; the support assembly comprises a back support 110 and a back rest 120, wherein a first shaft hole is formed in the lower portion of the back support 110, a first rotating shaft 101 is inserted into and fixed in the first shaft hole so that the back support 110 can rotate around the first rotating shaft 101, a second shaft hole is formed in the lower portion of the back rest 120, a second rotating shaft 102 is inserted into and fixed in the second shaft hole so that the back rest 120 can rotate around the second rotating shaft 102, and the upper portion of the back rest 120 is movably connected with the upper portion of the back support 110; wherein, when the backrest 120 is stressed, the backrest 120 and the lower part of the backrest bracket 110 can rotate together, and the backrest 120 and the upper part of the backrest bracket 110 are offset, so as to reduce the offset of the position during the rotation of the backrest 120.
According to the backrest device provided by the embodiment of the first aspect of the utility model, when a user leans back to apply pressure to the backrest 120 in the use process, the backrest 120 rotates around the second rotating shaft 102, the backrest support 110 also rotates around the first rotating shaft 101, and when the backrest 120 rotates with the backrest support 110, the movable connection part of the upper part of the backrest 120 and the upper part of the backrest support 110 is displaced due to the dislocation arrangement of the first rotating shaft 101 and the second rotating shaft 102, so that the relative displacement of the backrest 120 is reduced, and the offset distance between the back of the user and the backrest 120 is reduced, so that the backrest 120 can better support the back of the user in the leaning back process, and the user experience is improved.
It should be noted that, on the premise that the offset distance between the back of the user and the backrest 120 can be reduced during rotation, the positions of the first rotating shaft 101 and the second rotating shaft 102 can be set according to actual requirements.
Referring to fig. 2 to 4, according to the backrest device provided in the embodiment of the first aspect of the present utility model, the upper portion of the backrest support 110 is provided with the insertion slot 111 opened toward the top of the backrest 120, the upper portion of the backrest 120 is provided with the insertion plate 121 extended toward the backrest support 110, the insertion plate 121 is inserted into the insertion slot 111 and is capable of sliding in the insertion slot 111, when the backrest 120 rotates about the second rotation axis 102, the backrest support 110 simultaneously rotates backward about the first rotation axis 101, and the insertion plate 121 at the upper portion of the backrest 120 is capable of moving toward the inside of the insertion slot 111 to reduce the offset of the backrest 120 during the backward rotation; when the backrest 120 rotates around the second rotation shaft 102, the backrest bracket 110 simultaneously rotates forward around the first rotation shaft 101, and the plugboard 121 on the upper part of the backrest 120 can move along the direction away from the slot 111, so that the backrest 120 is reset, and the backrest 120 can better support the back of a user.
Referring to fig. 2, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the first rotating shaft 101 is located at the outer side of the connecting arm, and the second rotating shaft 102 is located at the inner side of the connecting arm, so that the compactness of the structure of the backrest device is improved by separating the second rotating shaft 102 from the first rotating shaft 101 at the inner side and the outer side of the connecting arm.
Referring to fig. 1 and 2, according to the backrest device provided in the first aspect of the present utility model, the connecting piece 130 is disposed between the backrest support 110 and the backrest 120, the whole of the connecting piece 130 is U-shaped, the connecting piece 130 includes a first connecting portion, a second connecting portion and an elastic bending portion, the first connecting portion is connected with the second connecting portion through the elastic bending portion, the first connecting portion is fixed to the backrest support 110, the second connecting portion is fixed to the backrest 120, when the back of a user leans against the backrest 120, a force applied to the backrest 120 by the back of the user can be transferred to the first connecting portion through the second connecting portion and the elastic bending portion of the connecting piece 130, and then transferred to the backrest support 110, the connecting piece 130 can enable the backrest support 110 to rotate together with the backrest 120 while maintaining the tightness between the backrest support 110 and the backrest 120, and when the upper portions of the backrest support 110 and the backrest 120 are relatively displaced, the elastic bending portion in the middle of the connecting piece 130 can correspondingly deform, and the position of the backrest support 110 can be ensured to be offset relative to the backrest support 110 during rotation.
Referring to fig. 2 to 4, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the bearing surface 112 is disposed at the middle of the backrest 110, the supporting portion 122 is disposed at the middle of the backrest 120, the first connecting portion is attached to and fixed to the bearing surface 112, the second connecting portion is fixed to the supporting portion 122, and the force applied to the backrest 120 from the back of the user can be transferred to the bearing surface 112 of the backrest 110 through the supporting portion 122 and the connecting member 130, so as to be beneficial to ensuring the stability of the force transfer between the backrest 110 and the backrest 120.
Referring to fig. 1 and 2, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the support assembly further includes a lumbar support 140, the lumbar support 140 is mounted on the front side of the support portion 122, and by mounting the lumbar support 140 on the support portion 122 of the backrest 120, the lumbar support 140 can provide support for the lumbar region of the user, which is beneficial for improving the user experience.
Referring to fig. 1 and 2, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the lumbar support 140 has a flexible supporting surface, and an adjusting mechanism is disposed between the supporting portion 122 and the flexible supporting surface, and the adjusting mechanism is used for pushing the flexible supporting surface to move the flexible supporting surface in a direction towards or away from the supporting portion 122, so that the flexible supporting surface of the lumbar support 140 can better fit with the lumbar region of the user, which is beneficial to providing better supporting force for the lumbar region of the user and improving user experience.
Referring to fig. 1 and 2, according to the backrest device provided by the embodiment of the first aspect of the present utility model, the adjusting mechanism includes an adjusting handle 150 and an adjusting cam, the adjusting handle 150 is rotatably connected to the supporting portion 122, the adjusting cam is mounted on the adjusting handle 150 and abuts against the flexible supporting surface, in the use process, only the adjusting handle 150 needs to be rotated, and the adjusting handle 150 rotates to drive the adjusting cam to rotate, so that the flexible supporting surface moves along the direction towards or away from the supporting portion 122.
Referring to fig. 5, a seat according to an embodiment of the second aspect of the present utility model includes a reclining device according to an embodiment of the first aspect of the present utility model.
According to the seat provided by the second aspect of the present utility model, when a user leans back to apply pressure to the backrest 120 during use, the backrest 120 rotates around the second rotation axis 102, and the backrest 110 also rotates around the first rotation axis 101, and when the backrest 120 rotates with the backrest 110, the movable connection between the upper portion of the backrest 120 and the upper portion of the backrest 110 is displaced due to the misalignment between the first rotation axis 101 and the second rotation axis 102, so that the relative displacement of the backrest 120 is reduced, and the offset distance between the back of the user and the backrest 120 is reduced, so that the backrest 120 can better support the back of the user during the reclining process, which is beneficial to improving the user experience.
Referring to fig. 5, the seat according to the second aspect of the present utility model further includes two armrests 160, wherein the two armrests 160 are disposed on both sides of the back support 110, and when the back support 110 rotates, the armrests 160 disposed on both sides of the back support 110 can also rotate together with the back support 110, thereby providing better support for the hands of the user.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, and the embodiments are only for illustrating the technical scheme of the present utility model, but not for limiting the same, and the present utility model is not limited to the embodiments, and various changes can be made without departing from the spirit of the present utility model within the knowledge of those skilled in the art.
Claims (10)
1. A reclining device, comprising:
The connecting frame is provided with connecting arms at two opposite ends, each connecting arm is provided with a first rotating shaft and a second rotating shaft, and the first rotating shafts and the second rotating shafts are staggered;
The support assembly comprises a back support and a back rest, wherein the lower part of the back support is connected with the first rotating shaft and can rotate around the first rotating shaft, the lower part of the back rest is connected with the second rotating shaft and can rotate around the second rotating shaft, and the upper part of the back rest is movably connected with the upper part of the back support;
When the backrest is stressed, the backrest and the backrest bracket can rotate together.
2. The back rest device according to claim 1, wherein the upper part of the back rest is provided with a slot opening towards the top of the back rest, and wherein the upper part of the back rest is provided with a plug board extending towards the back rest, said plug board being inserted into the slot and being slidable therein.
3. The reclining device of claim 1, wherein the first pivot is located outside of the connecting arm and the second pivot is located inside of the connecting arm.
4. The reclining device according to claim 1, wherein a connecting member is provided between the back bracket and the reclining, the connecting member including a first connecting portion, a second connecting portion, and an elastic bending portion, the first connecting portion and the second connecting portion being connected by the elastic bending portion, the first connecting portion being fixed to the back bracket, the second connecting portion being fixed to the reclining.
5. The reclining device of claim 4, wherein a bearing surface is provided at a middle portion of the back bracket, the middle portion of the back is a supporting portion, the first connecting portion is attached to and fixed to the bearing surface, and the second connecting portion is fixed to the supporting portion.
6. The reclining device of claim 5, wherein said support assembly further comprises a lumbar support mounted to a front side of said support.
7. The reclining device of claim 6, wherein the lumbar support has a flexible support surface, and an adjustment mechanism is disposed between the support and the flexible support surface for pushing the flexible support surface to move the flexible support surface in a direction toward or away from the support.
8. The reclining device of claim 7, wherein the adjustment mechanism includes an adjustment handle rotatably connected to the support and an adjustment cam mounted to the adjustment handle and abutting the flexible support surface.
9. A seat comprising a reclining device according to any one of claims 1 to 8.
10. The seat of claim 9, further comprising two armrests, two of the armrests being disposed on either side of the back support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322763132.7U CN221060110U (en) | 2023-10-13 | 2023-10-13 | Backrest device and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322763132.7U CN221060110U (en) | 2023-10-13 | 2023-10-13 | Backrest device and seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221060110U true CN221060110U (en) | 2024-06-04 |
Family
ID=91263907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322763132.7U Active CN221060110U (en) | 2023-10-13 | 2023-10-13 | Backrest device and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221060110U (en) |
-
2023
- 2023-10-13 CN CN202322763132.7U patent/CN221060110U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Zhengchen Inventor after: Luo Jiandong Inventor before: Zhu Zhengchen Inventor before: Luo Jiandong |