CN213188803U - Seat with self-supporting chassis - Google Patents
Seat with self-supporting chassis Download PDFInfo
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- CN213188803U CN213188803U CN202021423363.3U CN202021423363U CN213188803U CN 213188803 U CN213188803 U CN 213188803U CN 202021423363 U CN202021423363 U CN 202021423363U CN 213188803 U CN213188803 U CN 213188803U
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- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000036544 posture Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
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Abstract
本实用新型公开一种带自负重底盘的座椅，包括椅座、底盘、联动杆、背靠支撑及弹性复位件，所述背靠支撑的下端具有连接件，所述连接件与所述底盘的后端枢接，所述连接件延伸出枢接件，所述底盘的前端与所述联动杆的一端枢接，所述联动杆的另一端与所述椅座的前端枢接，所述椅座的后端与所述枢接件的上端枢接；所述弹性复位件设置于所述椅座与所述底盘之间或所述背靠支撑与所述底盘之间，以对所述背靠支撑及椅座复位。本实用新型带自负重底盘的座椅在椅座受重时，椅座及背靠的位置可自我调整，且背靠的回弹力可根据人体的重量自动调节，提高使用的舒适性，在不受重时可自动复位，使用方便。
The utility model discloses a seat with a self-supporting chassis, comprising a seat seat, a chassis, a linkage rod, a backrest support and an elastic reset piece, the lower end of the backrest support is provided with a connecting piece, the connecting piece and the chassis The rear end is pivoted, the connecting piece extends out of the pivot piece, the front end of the chassis is pivotally connected to one end of the linkage rod, the other end of the linkage rod is pivotally connected to the front end of the seat, the The rear end of the seat is pivotally connected with the upper end of the pivoting member; the elastic restoring member is arranged between the seat and the chassis or between the backrest support and the chassis, so as to align the backrest Restoration by support and seat. When the seat with self-supporting chassis of the utility model is under weight, the positions of the seat and the backrest can be adjusted by themselves, and the resilience of the backrest can be automatically adjusted according to the weight of the human body, which improves the comfort of use and improves the comfort of use. It can be automatically reset when it is heavy, and it is easy to use.
Description
Technical Field
The present invention relates to a chair, and more particularly to a chair with a self-supporting base plate, which can be adjusted by itself when the seat is heavy and reset automatically when the seat is not heavy.
Background
The existing chair generally only has a chair back with an adjusting function, for example, an office chair, when people sit on the chair and lean against the chair back, the chair back can elastically swing downwards to play an elastic buffering role. However, since the chair back and the chair seat of the existing chair are not related at all, although the chair back can be adjusted properly with the change of the sitting posture of the human body, the chair seat can not adapt to the change of the sitting posture, so that the chair seat can not feel uncomfortable when the human body keeps certain sitting postures, can not meet the requirements of various sitting postures, and has low comfort level. In addition, although the conventional chair seat can adapt to the change of sitting postures, the backward bending force applied to the chair back by people with different weights is different, and the elasticity of the chair back cannot be automatically adjusted according to the requirement, so that the comfort is also influenced to a certain degree.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a when the seat support receives the heavy, but the position self-adjustment of seat support and back, and the resilience force that leans against can be according to human weight automatically regulated, but self-righting's the seat from the burden chassis when not receiving the heavy.
In order to achieve the above object, the utility model provides a chair with self-weight chassis, including seat support, chassis, gangbar, back support and elastic reset piece, the lower extreme of back support has a connecting piece, the connecting piece is pin-jointed with the rear end of chassis, the connecting piece extends out of the pin-jointed piece, the front end of chassis is pin-jointed with one end of the gangbar, the other end of the gangbar is pin-jointed with the front end of seat support, the rear end of seat support is pin-jointed with the upper end of the pin-jointed piece; the elastic reset piece is arranged between the chair seat and the chassis or between the backrest support and the chassis so as to reset the backrest support and the chair seat.
Compared with the prior art, the utility model has the advantages that the connecting piece is arranged at the lower end of the backrest support, the pivoting piece is arranged on the connecting piece, so that the connecting piece is pivoted with the rear end of the chassis, the front end of the chassis is pivoted with one end of the linkage rod, the other end of the linkage rod is pivoted with the front end of the seat, and the rear end of the seat is pivoted with the upper end of the pivoting piece; therefore, a deformable quadrilateral structure is formed among the seat, the chassis, the linkage rod and the backrest support, and the backrest support can drive the seat to be automatically adjusted when the human back leans backwards to act on the backrest support so as to adapt to different sitting posture requirements. In addition, by arranging the elastic resetting piece, the backrest support is linked with the seat, so that the resilience force provided by the backrest support to a human body is correlated with the gravity borne by the seat, the resilience forces with different forces can be provided according to users with different weights, the purposes of automatic adjustment and automatic adaptation are achieved, and the comfort of the seat is greatly improved; when the back does not act on the backrest support or the seat is not seated, the seat can be automatically reset, the structure is simple, and the use is convenient.
Preferably, the pivot member is bent and extended upward and toward the direction of the backrest support.
Preferably, one end of the elastic reset piece is pivoted on the chassis, the other end of the elastic reset piece is pivoted at the bottom of the seat, and the pivoting center of the elastic reset piece coincides with the pivoting shaft center of the pivoting piece.
Preferably, the elastic restoring member is an extension spring.
Preferably, the bottom of the front end of the seat is provided with a front pivoting seat for the linkage rod to pivot, and the bottom of the rear end of the seat is provided with a rear pivoting seat for the pivoting piece to pivot.
Preferably, the rear end of the chassis protrudes upward to form a pivot portion, and the connecting member is pivoted to the pivot portion. The front end of the elastic resetting piece is pivoted on the chassis, and the rear end of the elastic resetting piece is pivoted on the connecting piece.
Specifically, the elastic restoring member is a compression spring.
Specifically, the chassis is provided with an elasticity adjusting mechanism which can push the front end of the elastic resetting piece to move towards the rear end so as to compress the elastic resetting piece.
Specifically, elasticity adjustment mechanism includes adjusting screw, adjusting nut and connecting block, adjusting nut is fixed in the chassis, adjusting screw with adjusting screw threaded connection and with the connecting block is connected, the connecting block with elasticity resets the pin joint.
Preferably, the range of the included angle between the vertical line of the horizontal plane and the connecting line between the pivot point of the connecting piece pivoted with the chassis and the pivot point of the rear end of the seat pivoted with the upper end of the pivot piece is 20-30 degrees.
Specifically, the range of the linear distance from the pivot point of the connecting piece pivoted with the chassis to the pivot point of the seat pivoted with the pivot piece is 80mm to 90 mm.
Specifically, the range of the linear distance from the pivot point of the connecting piece and the chassis to the pivot point of the elastic resetting piece and the connecting piece is 40mm to 50 mm.
Drawings
Fig. 1 is a perspective view of a seat with a self-supporting chassis according to a first embodiment of the present invention.
Fig. 2 is a sectional view of a seat with a self-supporting chassis according to a first embodiment of the present invention in a natural state.
Fig. 3 is a sectional view of a seat with a self-supporting chassis according to a first embodiment of the present invention in a loaded state.
Fig. 4 is an exploded view of a seat with a self-supporting chassis according to a first embodiment of the present invention.
Fig. 5 is a perspective view of a seat with a self-supporting chassis according to a second embodiment of the present invention.
Fig. 6 is a sectional view of a seat with a self-supporting chassis according to a second embodiment of the present invention in a natural state.
Fig. 7 is a sectional view of a seat with a self-supporting chassis according to a second embodiment of the present invention in a loaded state.
Fig. 8 is an exploded view of a seat with a self-supporting chassis according to a second embodiment of the present invention.
Fig. 9 is an enlarged view of a portion G in fig. 6.
Detailed Description
In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
Fig. 1 to 4 show a structure of a seat with a self-supporting chassis according to a first embodiment of the present invention, which is as follows:
as shown in fig. 1 and 2, the chair 100 with self-supporting heavy chassis of the present invention comprises a chair seat 1, a chassis 2, a linkage rod 3, a backrest support 4 and an elastic reset member 5, wherein the lower end of the backrest support 4 extends to the lower part of the chair seat 1 to form a connecting member 41, the middle part of the connecting member 41 is pivoted with the rear end of the chassis 2 to form a pivot point a, the end of the connecting member 41 is bent upward and extends out of a pivot member 42 toward the backrest support 4, the front end of the chassis 2 is pivoted with one end of the linkage rod 3 to form a pivot point B, the other end of the linkage rod 3 is pivoted with the front end of the chair seat 1 to form a pivot point C, and the rear end of the chair seat 1 is pivoted with the upper end of the pivot member 42 to form a pivot point D; the elastic reset piece 5 is arranged between the seat 1 and the chassis 2 to reset the backrest support 4 and the seat 1. The elastic reset piece 5 is an extension spring.
As shown in fig. 1 and fig. 2, one end of the elastic restoring element 5 is pivoted to the chassis 2 to form a pivot point E, and the other end is pivoted to the bottom of the seat 1, and the pivot center coincides with the pivot axis center of the pivot element 42, i.e., is pivoted to the pivot D. The horizontal heights of the pivot point D, the pivot point E and the pivot point A are sequentially arranged from high to low.
Referring to fig. 2, the front end bottom of the seat 1 is provided with a front pivoting seat 11 for the linkage rod 3 to pivot, and the rear end bottom is provided with a rear pivoting seat 12 for the pivoting member 42 to pivot. The front pivoting seat 11 can facilitate the linkage rod 3 to be pivoted with the chair seat 1. The rear pivoting seat 12 can facilitate the pivoting of the pivoting member 41 and the seat 1.
Referring to fig. 2, the seat 100 with a self-loading chassis further includes a base 6 and a seat cushion 7, wherein the base 6 is disposed below the chassis 2 and connected to the chassis 2. A lifter 8 is arranged between the base 6 and the chassis 2. The base 6 has a plurality of rollable rollers 9. The cushion 7 is disposed on the surface of the seat 1.
The angle between the connecting line between the pivot point A and the pivot point D and the vertical line of the horizontal plane ranges from 20 degrees to 30 degrees. The range of the linear distance from the pivot point A to the pivot point D is 80mm to 90 mm. Within these angles and distance ranges, the seat 100 with the self-ballasted chassis provides the best self-ballasting and reclining resilience effects.
Referring to fig. 2 and 3, when a load is applied, the backrest support 4 is forced to tilt backward, and the connecting member 41 at the lower end of the backrest support 4 rotates downward around the pivot point a, so that the pivot member 42 swings around the pivot point a. The pivot member 42 drives the seat 1 to tilt backward and stretch the elastic restoring member 5. At this time, the rear end of the seat 1 moves upward and rearward. The front end of the seat 1 drives the linkage rod 3 to swing upwards and backwards around the pivot point B, so that the front end of the seat 1 moves upwards and backwards, the front end of the seat 1 is higher than the rear end of the seat 1, and the angle of the seat 1 is automatically adjusted. When no load is loaded, the elastic reset piece 5 resets to drive the seat 1, the connecting piece 41, the pivot joint piece 42, the backrest support 4, the chassis 2 and the linkage rod 3 to reset, and each part returns to the original state after the backrest support 4 abuts against the rear end of the seat 1 directly.
Compared with the prior art, the utility model has the advantages that the connecting piece 41 is arranged at the lower end of the backrest support 4, the pivoting piece 42 is arranged at the tail end of the connecting piece 41, so that the connecting piece 41 is pivoted with the rear end of the chassis 2, the front end of the chassis 2 is pivoted with one end of the linkage rod 3, the other end of the linkage rod 3 is pivoted with the front end of the seat 1, and the rear end of the seat 1 is pivoted with the upper end of the pivoting piece 42; therefore, a deformable quadrilateral structure is formed among the seat 1, the chassis 2, the linkage rod 3 and the back support 4, and the back support 4 can drive the seat 1 to be automatically adjusted to adapt to different sitting posture requirements when the back of a human body leans backwards to act on the back support 4. In addition, by arranging the elastic reset piece 5, because the back support 4 is linked with the seat 1, the resilience force provided by the back support 4 to the human body is correlated with the gravity borne by the seat 1, so that resilience forces with different forces can be provided according to users with different weights, the purposes of automatic adjustment and automatic adaptation are achieved, and the comfort of the seat is greatly improved; when the back does not act on the backrest support 4 or the seat is not seated, the seat 1 can be automatically reset, the structure is simple, and the use is convenient.
Fig. 5 to 9 show a structure 100' of a seat with a self-supporting chassis according to a second embodiment of the present invention, which is as follows:
as shown in fig. 5 to 8, the structure of the chair 100 'with self-loading chassis of the present embodiment is substantially the same as that of the first embodiment, and includes a seat 1', a chassis 2 ', a linkage rod 3', a backrest support 4 'and an elastic restoring member 5'. The middle part of the connecting piece 41 'is pivoted with the rear end of the chassis 2' to form a pivoting point a, the front end of the chassis 2 'is pivoted with one end of the linkage rod 3' to form a pivoting point b, the other end of the linkage rod 3 'is pivoted with the lower side of the front end of the seat 1' to form a pivoting point c, and the lower side of the rear end of the seat 1 'is pivoted with the upper end of the pivoting piece 42' to form a pivoting point d. The difference between this embodiment and the first embodiment lies in the structure of the connecting member 41 'and the pivot member 42' of the backrest support 4 ', the connection relationship between the connecting member 41' and the chassis 2 ', and the arrangement position of the elastic restoring member 5'. Specifically, the rear end of the chassis 2 'protrudes upward to form a pivot portion 2a, and the connecting member 41' is pivotally connected to the pivot portion 2 a. The upper end of the connecting member 41 ' extends upwards to form the pivot member 42 ', and the lower end of the connecting member 41 ' extends downwards. The front end of the elastic reset piece 5 ' is pivoted to the chassis 2 ' to form a pivot point e, and the rear end is pivoted to the lower end of the connecting piece 41 ' to form a pivot point f. The elastic reset piece 5' is a compression spring. The horizontal heights of the pivot point d, the pivot point a and the pivot point f are sequentially arranged from high to low.
As shown in fig. 6 and 9, the chassis 2 'has an elastic force adjusting mechanism 21, and the elastic force adjusting mechanism 21 can push the front end of the elastic restoring member 5' to move towards the rear end to compress the elastic restoring member 5. Specifically, the elasticity adjusting mechanism 21 includes an adjusting screw 211, an adjusting nut 212 and a connecting block 213, the adjusting nut 212 is fixed to the chassis 2 ', the adjusting screw 211 is in threaded connection with the adjusting nut 212 and is connected with the connecting block 213, and the connecting block 213 is pivoted with the elastic resetting member 5' to form the pivot point e. By providing the elasticity adjusting mechanism 21, the elasticity of the elastic restoring member 5 'can be adjusted, so that the resilience of the backrest support 4' is larger.
Referring to fig. 6, an angle between a connecting line between the pivot point a and the pivot point d and a vertical line of the horizontal plane ranges from 20 degrees to 30 degrees. The linear distance from the pivot point a to the pivot point d ranges from 80mm to 90 mm. The linear distance from the pivot point a of the connecting piece 41 'pivoted with the chassis 2' to the pivot point f of the elastic restoring piece 5 'pivoted with the connecting piece 41' is 40mm to 50 mm. Within these angles and distance ranges, the seat 100' with the self-ballasted chassis provides the best self-ballasting and reclining resilience effects. The beneficial effects of the seat 100' with self-loading chassis of the second embodiment are substantially the same as those of the first embodiment, and the description thereof is not repeated.
The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021423363.3U CN213188803U (en) | 2020-07-17 | 2020-07-17 | Seat with self-supporting chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021423363.3U CN213188803U (en) | 2020-07-17 | 2020-07-17 | Seat with self-supporting chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213188803U true CN213188803U (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021423363.3U Active CN213188803U (en) | 2020-07-17 | 2020-07-17 | Seat with self-supporting chassis |
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| Country | Link |
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| CN (1) | CN213188803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974363A (en) * | 2021-11-10 | 2022-01-28 | 佛山市精一家具有限公司 | Self-loading seat chassis and seat |
-
2020
- 2020-07-17 CN CN202021423363.3U patent/CN213188803U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113974363A (en) * | 2021-11-10 | 2022-01-28 | 佛山市精一家具有限公司 | Self-loading seat chassis and seat |
| CN113974363B (en) * | 2021-11-10 | 2025-07-22 | 广东精一家具股份有限公司 | Self-weight seat chassis and seat |
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