CN114312504A - Seat back angle adjusting structure with buffering damping function - Google Patents
Seat back angle adjusting structure with buffering damping function Download PDFInfo
- Publication number
- CN114312504A CN114312504A CN202111633626.2A CN202111633626A CN114312504A CN 114312504 A CN114312504 A CN 114312504A CN 202111633626 A CN202111633626 A CN 202111633626A CN 114312504 A CN114312504 A CN 114312504A
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- backrest
- spring
- support
- cushion
- seat back
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- 238000013016 damping Methods 0.000 title claims abstract description 13
- 230000003139 buffering effect Effects 0.000 title claims abstract description 8
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The invention discloses a seat back angle adjusting structure with a buffering damping function, wherein a hinge support, a torsional spring, a mounting support and a volute spiral spring are sequentially sleeved on a backrest rotating shaft from inside to outside, the hinge support is fixed with the backrest rotating shaft, the mounting support is in rotating fit with the backrest rotating shaft, the inner end of the volute spiral spring is clamped on the backrest rotating shaft, the outer end of the volute spiral spring is hooked on the mounting support, one end of the torsional spring is fixed on the hinge support, the other end of the torsional spring is fixed on the mounting support, and when the backrest is overturned forwards from a use position to a seat cushion, the torsional spring can be changed into a compression state from a tension state. When the backrest is overturned forwards to the cushion from the use position, the invention can provide the driving force in the same direction as the volute spiral spring at the overturning initial stage to assist the backrest to overturn forwards to a certain angle, and provide the resistance in the opposite direction of the volute spiral spring at the subsequent stage, thereby reducing the overturning speed of the backrest, preventing abnormal sound from being generated and avoiding the backrest from hurting people.
Description
Technical Field
The invention relates to the technical field of automobile seats, in particular to a seat back angle adjusting structure with a buffering and damping function.
Background
The seat of the automobile is an indispensable component of the automobile, and the angle of the seat back directly affects the riding comfort of the passenger, and further affects the driving safety. Currently, the angle of the backrest of the seat is adjusted by a seat backrest adjusting structure composed of a flat spiral spring and a link mechanism. When the seat back is laid down forwards from the use position, the seat back is unlocked and driven to rotate forwards by the elastic force released by the flat spiral spring until the seat back is laid down.
The problems with the above process are: when the seat back is laid down forwards, the elastic force released by the volute spiral spring explodes instantly, so that the forward driving force of the seat back is easy to be large, the backrest needs to be actively controlled by the force of a passenger, and the overturning speed can be controlled. Otherwise, the turning speed of the seat back is too high, abnormal sound is easy to generate, and no buffer exists, so that the comfort of riding is seriously influenced. There are potential hazards when passengers are not aware of or mishandle: the damage of objects on the cushion or the damage of the seat surface sleeve can be easily caused; the pet on the cushion can be injured; when a passenger lies on the seat cushion, the backrest is pushed forward, and the passenger may be injured.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a seat back angle adjusting structure with a buffering and damping function, when a seat back is forwards overturned to a cushion from a use position, a driving force in the same direction as a volute spiral spring can be provided at the initial overturning stage to assist the seat back to forwards overturn to a certain angle, a resistance in the opposite direction of the volute spiral spring is provided at the subsequent stage, and the overturning speed of the seat back is reduced, so that abnormal sound is prevented from being generated, and the seat back is prevented from hurting people; when the backrest is turned backwards and returned, the restoring force of the torsion spring can assist external force to compress the volute spiral spring, so that more labor is saved.
In order to achieve the purpose, the invention provides a seat back angle adjusting structure with a buffering damping function, which comprises a hinge support fixed on a seat back and a mounting support fixed on a cushion, wherein the hinge support, the mounting support and a volute spiral spring are sequentially sleeved on a seat back rotating shaft from inside to outside, the hinge support is fixed with the seat back rotating shaft, the mounting support is in rotating fit with the seat back rotating shaft, the inner end of the volute spiral spring is clamped on the seat back rotating shaft, the outer end of the volute spiral spring is hooked on the mounting support, when the seat back is in a use state, the volute spiral spring is compressed and has a torsion force for driving the seat back to turn forwards, the mounting support and the hinge support are both formed by stamping sheet metal parts, reinforcing flanges are arranged on the mounting support and the hinge support, a torsion spring is sleeved on the seat back rotating shaft between the hinge support and the mounting support, and a pin shaft is fixedly arranged on the mounting support, the hinge support is provided with a limiting hole, one end of the torsion spring is hooked on the pin shaft, the other end of the torsion spring penetrates through the limiting hole, and when the backrest is turned forwards to the cushion from the use position, the torsion spring can be changed into a compression state from a stretching state.
In the scheme, the method comprises the following steps: when the backrest is turned to 123 degrees, the backrest is in a use position, and the torsion spring is in a stretching state; when the backrest is turned over to 84 degrees, the torsion spring is in an initial state; when the backrest is laid down on the seat cushion, the torsion spring is in a compressed state. The design is 123 degrees, the use position of the backrest is provided, and the use angle of the backrest accords with ergonomics; the backrest is in a stretching state when the backrest is overturned more than 84 degrees by taking 84 degrees as a dividing point, and is in a compressing state when the backrest is overturned less than 84 degrees by taking the torsion spring below the dividing point, so that the damping feeling provided by the torsion spring below the dividing point is most suitable; if the dividing point is set to be too large, for example, 105 degrees is taken as the dividing point, the stretching angle of the torsion spring is small, and the torsion spring can only stretch from 105 degrees to 123 degrees, so that the driving force which is in the same direction as the torsion spring is small in the initial turning stage, and the function of assisting the backrest to turn forwards is limited; the compressible angle of the torsion spring is larger and is compressed from 105 degrees to 0 degrees, the resistance opposite to the volute coil spring is provided in the subsequent stage and is too large, and the resilience force of the volute coil spring cannot smoothly drive the backrest to overturn on the seat cushion; if the cut point is set too small, the above-described adverse effect is likely to occur.
In the scheme, the method comprises the following steps: the outer end of the backrest rotating shaft is reduced in a step shape, a first shaft part, a second shaft part, a third shaft part and a fourth shaft part are sequentially formed, the torsion spring is sleeved on the first shaft part, the mounting bracket is sleeved on the second shaft part, the volute spiral spring is sleeved on the third shaft part, and the fourth shaft part is sleeved with a thrust cap. The torsion spring, the mounting bracket, the volute spring and the thrust cap are separated through a plurality of step surfaces, so that mutual influence of the torsion spring, the mounting bracket, the volute spring and the thrust cap is avoided; the thrust cap plays an axial limiting role and is used for preventing the volute spring from falling off from the backrest spindle.
In the scheme, the method comprises the following steps: and a wear-resistant bushing is arranged between the mounting bracket and the volute spiral spring, the wear-resistant bushing is abutted against a step surface formed by the second shaft part and the third shaft part, the volute spiral spring bushing is arranged between the volute spiral spring and the thrust cap, and the volute spiral spring bushing is abutted against a step surface formed by the third shaft part and the fourth shaft part. The wear-resistant bush and the volute spiral spring bush are both wear-bearing pieces and play a role in protection.
The invention has the beneficial effects that:
1. when the backrest is locked and fixed at the use position, the volute spiral spring generates torsion due to the forced compression, and after the backrest is unlocked, the volute spiral spring releases the torsion to drive the backrest to turn forwards to the seat cushion; when the backrest is turned forwards to the cushion from the use position, the torsional spring provides a driving force in the same direction as the volute spiral spring at the initial turning stage to assist the backrest to turn forwards to a certain angle, and provides a resistance in the opposite direction of the volute spiral spring at the subsequent stage to reduce the turning speed of the backrest, so that abnormal sound is prevented from being generated, the backrest is prevented from hurting people, and articles on the cushion are prevented from being damaged by the backrest; when the backrest is turned backwards and returned, the restoring force of the torsion spring can assist external force to compress the volute spiral spring, so that more labor is saved.
2. The space between the hinge support and the mounting support is small, the traditional damper cannot be mounted due to insufficient mounting space, and the space required by the installation of the torsion spring is small, so that the damper can be easily mounted between the hinge support and the mounting support.
3. Compared with the damper, the cost for installing the torsion spring is lower, the unit price of the damper is 400-500 yuan, and the unit price of the torsion spring is only about ten yuan.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially exploded schematic view of the present invention.
Fig. 3 is a state diagram of the torsion spring.
Detailed Description
As shown in fig. 1-3, a seat back angle adjusting structure with buffering and damping functions mainly comprises a hinge bracket 1 fixed on a seat back and a mounting bracket 2 fixed on a seat cushion.
Hinge bracket 1, installing support 2 and volute spiral spring 3 suit in proper order on back pivot 4 from inside to outside, hinge bracket 1 is fixed with back pivot 4, and installing support 2 is normal running fit with back pivot 4, and the inner card of volute spiral spring 3 is on back pivot 4, and the outer end of volute spiral spring 3 is colluded and is hung on installing support 2, and when the back was in the user state, volute spiral spring 3 was compressed and possesses the torsion that the drive back overturned forward.
Installing support 2 and hinge support 1 are formed by the sheet metal component punching press, all are provided with the enhancement turn-ups on installing support 2 and the hinge support 1. The reinforcing flange contributes to increasing the strength of the mounting bracket 2 and the hinge bracket 1. The backrest rotating shaft 4 between the hinge support 1 and the mounting support 2 is sleeved with a torsion spring 5, the mounting support 2 is fixedly provided with a pin shaft 201, the hinge support 1 is provided with a limiting hole, one end of the torsion spring 5 is hooked on the pin shaft 201, and the other end of the torsion spring 5 is arranged in the limiting hole in a penetrating mode. When the backrest is turned forwards from the use position to the seat cushion, the torsion spring 5 can be changed from a stretching state to a compressing state.
When the backrest is turned to 123 degrees, the backrest is in the use position, and the torsion spring 5 is in a stretching state; when the backrest is turned over to 84 degrees, the torsion spring 5 is in an initial state; when the backrest is laid down on the seat cushion, the torsion spring 5 is in a compressed state. The design is 123 degrees, the use position of the backrest is provided, and the use angle of the backrest is in accordance with ergonomics. The backrest is turned over to be larger than 84 degrees and is in a stretching state by taking 84 degrees as a boundary point, the torsion spring 5 is turned over to be smaller than 84 degrees and is in a compressing state by taking the torsion spring 5 at the boundary point to provide the most proper damping feeling; if the dividing point is set too large, for example, 105 ° is taken as the dividing point, the stretching angle of the torsion spring 5 is small, and the torsion spring can only stretch from 105 ° to 123 °, so that the driving force provided in the same direction as the torsion spring 3 is small in the initial stage of turning, and the function of assisting the backrest to turn forwards is limited; the angle that the torsion spring 5 can be compressed is larger, the torsion spring is compressed from 105 degrees to 0 degrees, the resistance opposite to the volute spiral spring 3 is provided in the subsequent stage, and the resilience force of the volute spiral spring 3 cannot smoothly drive the backrest to overturn on the seat cushion. If the cut point is set too small, the above-described adverse effect is likely to occur.
The outer end of the backrest rotating shaft 4 is reduced in a step shape, and a first shaft part 401, a second shaft part 402, a third shaft part 403 and a fourth shaft part 404 are sequentially formed, the torsion spring 5 is sleeved on the first shaft part 401, the mounting bracket 2 is sleeved on the second shaft part 402, the volute spiral spring 3 is sleeved on the third shaft part 403, and the fourth shaft part 404 is sleeved with the thrust cap 6. The torsion spring 5, the mounting bracket 2, the volute spiral spring 3 and the thrust cap 6 are separated by a plurality of step surfaces, so that the mutual influence of the torsion spring, the mounting bracket 2, the volute spiral spring 3 and the thrust cap 6 is avoided; the thrust cap 6 serves as an axial stopper for preventing the scroll spring 3 from falling off from the back spindle 4.
A wear-resistant bush 8 is provided between the mounting bracket 2 and the scroll spring 3, the wear-resistant bush 8 abuts against a stepped surface formed by the second shaft portion 402 and the third shaft portion 403, a scroll spring bush 7 is provided between the scroll spring 3 and the thrust cap 6, and the scroll spring bush 7 abuts against a stepped surface formed by the third shaft portion 403 and the fourth shaft portion 404. The wear-resistant bush 8 and the volute spiral spring bush 7 are both wear-bearing pieces and play a role in protection.
Claims (4)
1. The utility model provides a seat back angle modulation structure with buffering damping function, is including fixing hinge bracket (1) on the back and fixing installing support (2) on the cushion, hinge bracket (1), installing support (2) and volute spring (3) suit in proper order on back pivot (4) from inside to outside, hinge bracket (1) is fixed with back pivot (4), installing support (2) are normal running fit with back pivot (4), the inner card of volute spring (3) is on back pivot (4), the outer end of volute spring (3) is colluded and is hung on installing support (2), when the back is in the user state, volute spring (3) are compressed and are possessed the torsion that the drive back overturned forward, its characterized in that: installing support (2) and hinge support (1) are formed by the sheet metal component punching press, all are provided with on installing support (2) and hinge support (1) and strengthen the turn-ups, and the cover is equipped with torsional spring (5) on back pivot (4) between hinge support (1) and installing support (2), round pin axle (201) has set firmly on installing support (2), be provided with spacing hole on hinge support (1), the one end of torsional spring (5) is colluded and is hung on round pin axle (201), the other end of torsional spring (5) is worn to establish in spacing hole, when the back by the service position forward upset to cushion, torsional spring (5) can become compression state by tensile state.
2. The seat back angle adjustment structure with cushion damping function according to claim 1, characterized in that: when the backrest is turned to 123 degrees, the backrest is in a use position, and the torsion spring (5) is in a stretching state; when the backrest is turned to 84 degrees, the torsion spring (5) is in an initial state; when the backrest is laid on the cushion, the torsion spring (5) is in a compressed state.
3. The seat back angle adjustment structure with cushion damping function according to claim 1, characterized in that: the outer end of back pivot (4) is the step form and reduces, forms first axial region (401) in proper order, second axial region (402), third axial region (403), fourth axial region (404), torsional spring (5) suit is on first axial region (401), installing support (2) suit is on second axial region (402), volute spring (3) suit is on third axial region (403), the cover is equipped with thrust cap (6) on fourth axial region (404).
4. The seat back angle adjustment structure with cushion damping function according to claim 3, characterized in that: a wear-resistant bushing (8) is arranged between the mounting bracket (2) and the volute spring (3), the wear-resistant bushing (8) is abutted against a step surface formed by the second shaft part (402) and the third shaft part (403), a volute spring bushing (7) is arranged between the volute spring (3) and the thrust cap (6), and the volute spring bushing (7) is abutted against a step surface formed by the third shaft part (403) and the fourth shaft part (404).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111633626.2A CN114312504A (en) | 2021-12-29 | 2021-12-29 | Seat back angle adjusting structure with buffering damping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111633626.2A CN114312504A (en) | 2021-12-29 | 2021-12-29 | Seat back angle adjusting structure with buffering damping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114312504A true CN114312504A (en) | 2022-04-12 |
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ID=81016390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111633626.2A Pending CN114312504A (en) | 2021-12-29 | 2021-12-29 | Seat back angle adjusting structure with buffering damping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114312504A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009123A (en) * | 2022-06-14 | 2022-09-06 | 贵州华阳汽车零部件有限公司 | Car and car seat upset booster unit thereof |
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| CN108146302A (en) * | 2017-12-20 | 2018-06-12 | 延锋安道拓座椅有限公司 | A kind of seat delays drop damp hinge automatically |
| CN208602363U (en) * | 2018-05-21 | 2019-03-15 | 重庆市宏华摩托车制造有限公司 | A kind of angle adjustor structure |
| CN110920477A (en) * | 2018-09-19 | 2020-03-27 | 北京安道拓汽车部件有限公司 | Damping mechanism for automobile seat |
| CN211969238U (en) * | 2020-04-02 | 2020-11-20 | 贵州华阳汽车零部件有限公司 | Power-assisted delay response mechanism of four connecting rods for folding automobile seat |
| CN212022424U (en) * | 2019-12-18 | 2020-11-27 | 延锋安道拓座椅有限公司 | Bidirectional power-assisted plate spring mechanism and backrest |
| CN213007729U (en) * | 2020-07-21 | 2021-04-20 | 贵州华阳汽车零部件有限公司 | Double-damping automobile seat overturning power-assisted mechanism |
| JP2021112948A (en) * | 2020-01-17 | 2021-08-05 | テイ・エス テック株式会社 | Seat rotating device |
| CN214083963U (en) * | 2020-11-05 | 2021-08-31 | 浙江吉利控股集团有限公司 | Automobile rear seat and automobile |
| CN113401022A (en) * | 2021-05-26 | 2021-09-17 | 广汽零部件有限公司 | Automobile seat framework structure |
-
2021
- 2021-12-29 CN CN202111633626.2A patent/CN114312504A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206383845U (en) * | 2016-12-29 | 2017-08-08 | 重庆宏立至信汽车部件制造有限公司 | Backrest scrollwork spring mounting structure |
| CN108146302A (en) * | 2017-12-20 | 2018-06-12 | 延锋安道拓座椅有限公司 | A kind of seat delays drop damp hinge automatically |
| CN208602363U (en) * | 2018-05-21 | 2019-03-15 | 重庆市宏华摩托车制造有限公司 | A kind of angle adjustor structure |
| CN110920477A (en) * | 2018-09-19 | 2020-03-27 | 北京安道拓汽车部件有限公司 | Damping mechanism for automobile seat |
| CN212022424U (en) * | 2019-12-18 | 2020-11-27 | 延锋安道拓座椅有限公司 | Bidirectional power-assisted plate spring mechanism and backrest |
| JP2021112948A (en) * | 2020-01-17 | 2021-08-05 | テイ・エス テック株式会社 | Seat rotating device |
| CN211969238U (en) * | 2020-04-02 | 2020-11-20 | 贵州华阳汽车零部件有限公司 | Power-assisted delay response mechanism of four connecting rods for folding automobile seat |
| CN213007729U (en) * | 2020-07-21 | 2021-04-20 | 贵州华阳汽车零部件有限公司 | Double-damping automobile seat overturning power-assisted mechanism |
| CN214083963U (en) * | 2020-11-05 | 2021-08-31 | 浙江吉利控股集团有限公司 | Automobile rear seat and automobile |
| CN113401022A (en) * | 2021-05-26 | 2021-09-17 | 广汽零部件有限公司 | Automobile seat framework structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115009123A (en) * | 2022-06-14 | 2022-09-06 | 贵州华阳汽车零部件有限公司 | Car and car seat upset booster unit thereof |
| CN115009123B (en) * | 2022-06-14 | 2024-01-19 | 贵州华阳汽车零部件有限公司 | Automobile and automobile seat overturning power assisting device thereof |
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Application publication date: 20220412 |