CN115972999A - Improve seat back latch mechanism and car of whipping score - Google Patents
Improve seat back latch mechanism and car of whipping score Download PDFInfo
- Publication number
- CN115972999A CN115972999A CN202310024240.4A CN202310024240A CN115972999A CN 115972999 A CN115972999 A CN 115972999A CN 202310024240 A CN202310024240 A CN 202310024240A CN 115972999 A CN115972999 A CN 115972999A
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- backrest
- lock
- seat
- whiplash
- backrest lock
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- 230000007246 mechanism Effects 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 230000002708 enhancing effect Effects 0.000 claims 3
- 230000001133 acceleration Effects 0.000 abstract description 10
- 208000027418 Wounds and injury Diseases 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 5
- 208000014674 injury Diseases 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 206010071366 Post-traumatic neck syndrome Diseases 0.000 abstract description 3
- 208000021567 Whiplash injury Diseases 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 208000028373 Neck injury Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a seat back lock mechanism for improving whipping score, which comprises a seat back and also comprises: the car body fixing latch hook is used for connecting the seat backrest to the car body; the backrest lock assembly is arranged between the seat backrest assembly and the fixed lock hook of the automobile body, and comprises at least one coil spring and is used for absorbing energy during a whiplash test and reducing the reverse acting force of the seat backrest on passengers. The backrest lock assembly comprises a backrest lock body, one end of the backrest lock body is detachably connected with the fixed lock hook of the vehicle body, the other end of the backrest lock body is connected with a backrest lock moving plate, and the backrest lock moving plate can move transversely relative to the seat backrest. In the whiplash test or the back collision process, the energy generated by passengers on the seat backrest is absorbed through the backrest lock assembly, the acceleration of the seat backrest is reduced, the injury value NIC of the neck is further reduced, the whiplash score of the seat is effectively improved, and the whiplash injury prevention performance of the seat is improved.
Description
Technical Field
The invention relates to the technical field of automobile seats, in particular to a seat backrest lock mechanism capable of improving whipping score and an automobile.
Background
With the development of the domestic automobile market, the attention of drivers and passengers on the safety in the automobile is higher and higher. Meanwhile, according to investigation, in various automobile safety accidents, the rear-end collision accident accounts for about 30 percent, and compared with the front-end collision accident and the side-end collision accident, the number of death people caused by the rear-end collision accident is smaller, but the number of death people caused by the rear-end collision accident is as high as 30-40 percent, wherein the neck injury is the most common injury form.
When the vehicle runs into the rear, the trunk of the passenger is influenced by the vehicle to move forwards under acceleration, and the head of the passenger rotates backwards due to relative inertia lag, so that the neck of the passenger is injured. The whiplash injury is the most serious secondary injury in traffic accident summary, has many complications and long latency period, causes great pain to the injured person and brings great property loss. In order to reduce the risk of such injuries, the whiplash test is formally introduced in the regulation of C-NCAP in 2012 edition, and after several years of development, the passive safety technology of vehicles becomes increasingly fine, and the regulation of C-NCAP in 2021 edition is released in 8 months of 2020, and the whiplash test is extended to the second row of occupant protection.
In the industry, in order to improve the rear seat whipping score, the method generally starts from two aspects:
firstly, in the data design stage, the distance between the headrest and the passenger is reduced as much as possible, the acceleration distance of the head during rear collision is reduced, and the whipping score is improved. The defect is that the back head clearance is reduced, and the riding comfort is seriously influenced;
on the other hand, relative inserts such as EPP are added in the headrest, so that the strength of the headrest rod and the fixed support is enhanced, the acceleration of the head during rear collision is reduced, and the whipping score is improved. The disadvantages are complex structure and high cost.
Disclosure of Invention
The embodiment of the invention aims to provide a seat mechanism for relieving fatigue of passengers and an automobile thereof, and solves the problems in the background art.
In order to achieve the above object, an embodiment of the present invention provides a seat back lock mechanism for improving a whiplash score, including a seat back, further including:
the vehicle body fixing latch hook is used for connecting the seat backrest to the vehicle body;
the backrest lock assembly is arranged between the seat backrest assembly and the fixed lock hook of the automobile body, and comprises at least one coil spring and is used for absorbing energy during a whiplash test and reducing the reverse acting force of the seat backrest on passengers.
Optionally, the backrest lock assembly comprises a backrest lock body, one end of the backrest lock body is detachably connected with the fixed lock hook of the vehicle body, the other end of the backrest lock body is connected with a backrest lock moving plate, and the backrest lock moving plate can move transversely relative to the seat backrest.
Optionally, the backrest lock assembly further includes a backrest lock fixing plate, one end of the backrest lock fixing plate is fixedly mounted on the tubular beam of the seat backrest, and upper and lower sides of the other end of the backrest lock fixing plate are connected with sliding plates which extend outwards and are used for being movably clamped on upper and lower end faces of the backrest lock moving plate.
Optionally, an end surface of the backrest lock moving plate, which is close to the seat backrest, is fixedly connected with one end of the coil spring, and the other end of the coil spring is hooked on the backrest lock fixing plate.
Optionally, the backrest lock fixing plate is provided with a positioning hole for hooking and positioning the coil spring.
Optionally, the sliding plate is of a U-shaped structure, and the sliding plate and the backrest lock fixing plate are of an integrated structure.
Optionally, an end of one side of the backrest lock moving plate, which is close to the backrest lock fixing plate, is connected with a flange which abuts against an edge of the sliding plate to form a limit when the backrest lock moving plate is separated from the backrest lock fixing plate.
Optionally, the number of the coil springs is two, and the two coil springs are symmetrically arranged on one side of the backrest lock moving plate.
Optionally, the backrest lock moving plate and the backrest lock body are screwed in through a screw to realize threaded connection and fixation;
the automobile body fixing lock hook is connected with the backrest lock body through the unlocking handle, and the seat backrest is fixed or separated from the automobile body fixing lock hook.
An automobile comprising a seat back lock mechanism as described above to improve whiplash score.
One of the above technical solutions has the following advantages or beneficial effects:
1. in the whiplash test or the rear collision process, the energy of passengers on the seat backrest is absorbed through the backrest lock assembly, the acceleration of the seat backrest is reduced, the injury value NIC of the neck is further reduced, the whiplash score of the seat is effectively improved, and the whiplash injury prevention performance of the seat is improved;
2. the riding and the operation are not affected in the normal use process;
3. when the chair collides forwards, the mechanism does not influence the strength of the whole framework of the chair.
Drawings
FIG. 1 is a schematic view of a seat back and a vehicle body assembly structure according to the present invention;
FIG. 2 is a partial perspective view of the present invention;
fig. 3 is a front view of the backrest lock assembly of fig. 2 according to the present invention.
Description of the reference numerals: the seat back 1, the tubular beam 11, the vehicle body fixing lock hook 2, the back lock assembly 3, the back lock body 31, the back lock moving plate 32, the coil spring 33 and the back lock fixing plate 34.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Most of the existing seat mechanisms of automobiles are designed to improve the whiplash score of the rear seats, and generally start from two aspects:
firstly, in the data design stage, the distance between the headrest and the passenger is reduced as much as possible, the acceleration distance of the head during rear collision is reduced, and the whipping score is improved. The defect is that the back clearance of the head is reduced, and the riding comfort is seriously influenced;
on the other hand, the related inserts such as EPP are added in the headrest, the strength of the headrest rod and the fixed support is enhanced, the acceleration of the head during rear collision is reduced, the whipping score is improved, and the headrest has the defects of complex structure and higher cost. In order to improve this drawback, the following is proposed.
A seat back lock mechanism for improving whipping score comprises a seat back 1, a vehicle body fixing lock hook 2 and a seat back lock assembly 3, wherein the vehicle body fixing lock hook 2 is used for connecting the seat back 1 to a vehicle body; the backrest lock assembly 3 is installed between the seat back assembly 1 and the vehicle body fixing latch hook 2.
As a preferred embodiment of the present invention, the backrest lock assembly 3 includes a backrest lock body 31, a backrest lock moving plate 32, a coil spring 33, and a backrest lock fixing plate 34.
Wherein, one end of the backrest lock body 31 is detachably connected with the vehicle body fixing lock hook 2, the other end is connected with a backrest lock moving plate 32, and the backrest lock moving plate 32 can move transversely relative to the seat backrest 1.
One end of the backrest lock fixing plate 34 is fixedly installed on the tubular beam 11 of the seat back 1, the upper and lower sides of the other end of the backrest lock fixing plate 34 are connected with sliding plates which extend outwards and are used for being movably clamped on the upper and lower end surfaces of the backrest lock moving plate 32, the sliding plates are of a U-shaped structure, and the sliding plates and the backrest lock fixing plate 34 are of an integrated structure, so that the integrated structure is stable.
One end surface of the backrest lock moving plate 32 close to the seat backrest 1 is fixedly connected with one end of a coil spring 33, the other end of the coil spring 33 is hooked on a backrest lock fixing plate 34, and a positioning hole for hooking and positioning the coil spring 33 is formed in the backrest lock fixing plate 34. The number of the coil springs 33 is not less than one, specifically, the number of the coil springs 33 is two, and the two coil springs 33 are symmetrically arranged on one side of the back lock moving plate 32. For absorbing energy during the whiplash test and reducing the reaction force of the seat back 1 against the occupant.
In a preferred embodiment of the present invention, a flange is connected to an end of the backrest lock moving plate 32 near the backrest lock fixing plate 34, and the flange abuts against an edge of the sliding plate to limit when the backrest lock moving plate 32 is separated from the backrest lock fixing plate 34.
As a preferred embodiment of the present disclosure, the backrest lock moving plate 32 and the backrest lock body 31 are screwed in by a screw to be fixed, so as to facilitate the assembly and disassembly. The vehicle body fixing lock hook 2 is connected with the backrest lock body 31 through an unlocking buckle, so that the seat backrest 1 is fixed with or separated from the vehicle body fixing lock hook 2. And then realize that backrest 1 locking or fall down, satisfy the normal use function of seat.
It is another object of the present disclosure to provide an automobile including a seat back lock mechanism for improving whiplash score as described above.
When the seat backrest lock is used normally, the backrest lock body 31 can be unlocked through the unlocking handle, the seat backrest 1 and the vehicle body fixing lock hook 2 are fixed or separated, the seat backrest 1 is locked or laid down, and the normal use function of the seat is met; head-on collision process or trunk collision: in the locking state of the seat back 1, when the seat back 1 is in frontal collision, because the back lock moving plate 32 and the back lock fixing plate 34 have no movable gap, the seat back 1 is fixed with the vehicle body through the back lock body 31, the seat back 1 does not move forward, and the strength of the whole seat back 1 is not influenced; post bump or whiplash test: the dummy moves backwards by inertia during collision to apply pressure to the seat back 1, and because the back lock body 31 is fixedly connected with the vehicle body fixing lock hook 2, the back lock moving plate 32 and the back lock fixing plate 34 generate relative movement by tension, and the energy of the relative movement is absorbed by the coil spring 33, the reverse acting force of the seat back 1 on a passenger is greatly reduced, the horizontal acceleration peak value of the seat back 1 on the chest of a human body is reduced, the difference value of the chest acceleration and the head mass center acceleration is reduced, and the performance of preventing the seat from being whiplash is effectively improved. This structure can absorb some energy by the seat back 1 being turned backward at the time of a rear collision, while not affecting the strength of the seat back 1 in frontal collision.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A seat back lock mechanism for improving a whiplash score, comprising a seat back (1), characterized by further comprising:
the vehicle body fixing latch hook (2) is used for connecting the seat backrest (1) to the vehicle body;
the backrest lock assembly (3) is installed between the seat backrest assembly (1) and the vehicle body fixing lock hook (2), and the backrest lock assembly (3) comprises at least one coil spring (33) and is used for absorbing energy during a whipping test and reducing the reverse acting force of the seat backrest (1) on passengers.
2. A seat back lock mechanism for enhancing a whiplash score as claimed in claim 1, wherein: the backrest lock assembly (3) comprises a backrest lock body (31), one end of the backrest lock body (31) is detachably connected with the vehicle body fixing lock hook (2), the other end of the backrest lock body is connected with a backrest lock moving plate (32), and the backrest lock moving plate (32) can move transversely relative to the seat backrest (1).
3. A whiplash score improvement seat back lock mechanism as claimed in claim 2, wherein: the backrest lock assembly (3) further comprises a backrest lock fixing plate (34), one end of the backrest lock fixing plate (34) is fixedly installed on a tubular beam (11) of the seat backrest (1), and the upper side and the lower side of the other end of the backrest lock fixing plate (34) are connected with sliding plates which extend outwards and are used for being movably clamped on the upper end face and the lower end face of the backrest lock moving plate (32).
4. A seat back lock mechanism for enhancing a whiplash score as claimed in claim 3, wherein: the end face, close to the seat back (1), of one side of the backrest lock moving plate (32) is fixedly connected with one end of a coil spring (33), and the other end of the coil spring (33) is hooked on a backrest lock fixing plate (34).
5. A whiplash score increasing seatback lock mechanism, according to claim 4, wherein: the backrest lock fixing plate (34) is provided with a positioning hole for hooking and positioning the coil spring (33).
6. A seat back lock mechanism for enhancing a whiplash score as claimed in claim 3, wherein: the sliding plate is of a U-shaped structure, and the sliding plate and the backrest lock fixing plate (34) are of an integrated structure.
7. A whiplash score improvement seat back lock mechanism as claimed in claim 6, wherein: one side end part of the backrest lock moving plate (32) close to the backrest lock fixing plate (34) is connected with a flanging which abuts against the edge part of the sliding plate to form limiting when the backrest lock moving plate (32) is separated from the backrest lock fixing plate (34).
8. A whiplash score increasing seatback lock mechanism, according to claim 4, wherein: the number of the coil springs (33) is two, and the two coil springs (33) are symmetrically arranged on one side of the backrest lock moving plate (32).
9. A whiplash score improvement seat back lock mechanism as claimed in claim 2, wherein: the backrest lock moving plate (32) and the backrest lock body (31) are screwed in through a screw to realize threaded connection and fixation;
the automobile body fixing lock hook (2) is connected with the backrest lock body (31) through an unlocking buckle handle, and the seat backrest (1) is fixed with or separated from the automobile body fixing lock hook (2).
10. An automobile, characterized in that: a seat back lock mechanism including a whiplash score enhancement as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310024240.4A CN115972999A (en) | 2023-01-09 | 2023-01-09 | Improve seat back latch mechanism and car of whipping score |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310024240.4A CN115972999A (en) | 2023-01-09 | 2023-01-09 | Improve seat back latch mechanism and car of whipping score |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115972999A true CN115972999A (en) | 2023-04-18 |
Family
ID=85973995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310024240.4A Pending CN115972999A (en) | 2023-01-09 | 2023-01-09 | Improve seat back latch mechanism and car of whipping score |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115972999A (en) |
Citations (14)
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|---|---|---|---|---|
| JP2000219069A (en) * | 1999-02-01 | 2000-08-08 | Daihatsu Motor Co Ltd | Automobile seat |
| CN101362447A (en) * | 2007-08-10 | 2009-02-11 | 约翰逊控制技术公司 | Locking device for seat back |
| WO2012000531A1 (en) * | 2010-06-30 | 2012-01-05 | Daimler Ag | Seat system for a motor vehicle |
| CN203592909U (en) * | 2013-11-18 | 2014-05-14 | 福特环球技术公司 | Fixing assembly of seat back of vehicle and vehicle |
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| CN206317718U (en) * | 2016-11-25 | 2017-07-11 | 浙江吉利控股集团有限公司 | A kind of rear seat back latch hook |
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| CN108454470A (en) * | 2018-01-30 | 2018-08-28 | 安徽江淮汽车集团股份有限公司 | A kind of locking holder adjusting back seat angle |
| CN109342002A (en) * | 2018-11-26 | 2019-02-15 | 王彦淞 | The application apparatus and test method of experimental performance are whipped for promoting front-row seats |
| CN208745793U (en) * | 2018-08-08 | 2019-04-16 | 吉利汽车研究院（宁波）有限公司 | A kind of chair fixing mechanism and vehicle |
| CN112455298A (en) * | 2020-12-09 | 2021-03-09 | 安徽江淮汽车集团股份有限公司 | Automobile rear seat structure and automobile |
| CN114162002A (en) * | 2021-12-18 | 2022-03-11 | 瑞安市荣邦汽车部件有限公司 | Electric seat lock catch capable of self-adjusting balance |
| CN115489400A (en) * | 2022-09-26 | 2022-12-20 | 浙江极氪智能科技有限公司 | Seat latch hook mounting structure and vehicle body structure |
-
2023
- 2023-01-09 CN CN202310024240.4A patent/CN115972999A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000219069A (en) * | 1999-02-01 | 2000-08-08 | Daihatsu Motor Co Ltd | Automobile seat |
| CN101362447A (en) * | 2007-08-10 | 2009-02-11 | 约翰逊控制技术公司 | Locking device for seat back |
| WO2012000531A1 (en) * | 2010-06-30 | 2012-01-05 | Daimler Ag | Seat system for a motor vehicle |
| CN104129326A (en) * | 2013-05-02 | 2014-11-05 | 通用汽车环球科技运作有限责任公司 | Vehicle seat assembly with dual locked seating positions and method of adjusting a vehicle seat |
| CN203592909U (en) * | 2013-11-18 | 2014-05-14 | 福特环球技术公司 | Fixing assembly of seat back of vehicle and vehicle |
| CN104960443A (en) * | 2015-07-08 | 2015-10-07 | 安徽江淮汽车股份有限公司 | Mounting structure of rear-row seat back |
| CN107020980A (en) * | 2016-01-30 | 2017-08-08 | 长城汽车股份有限公司 | Chairs in rear rows of vehicles backrest unit and backrest, vehicle |
| CN206317718U (en) * | 2016-11-25 | 2017-07-11 | 浙江吉利控股集团有限公司 | A kind of rear seat back latch hook |
| CN108454470A (en) * | 2018-01-30 | 2018-08-28 | 安徽江淮汽车集团股份有限公司 | A kind of locking holder adjusting back seat angle |
| CN208745793U (en) * | 2018-08-08 | 2019-04-16 | 吉利汽车研究院（宁波）有限公司 | A kind of chair fixing mechanism and vehicle |
| CN109342002A (en) * | 2018-11-26 | 2019-02-15 | 王彦淞 | The application apparatus and test method of experimental performance are whipped for promoting front-row seats |
| CN112455298A (en) * | 2020-12-09 | 2021-03-09 | 安徽江淮汽车集团股份有限公司 | Automobile rear seat structure and automobile |
| CN114162002A (en) * | 2021-12-18 | 2022-03-11 | 瑞安市荣邦汽车部件有限公司 | Electric seat lock catch capable of self-adjusting balance |
| CN115489400A (en) * | 2022-09-26 | 2022-12-20 | 浙江极氪智能科技有限公司 | Seat latch hook mounting structure and vehicle body structure |
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