CN214324941U

CN214324941U - Quick folding adjustment mechanism of car seat

Info

Publication number: CN214324941U
Application number: CN202120231238.0U
Authority: CN
Inventors: 毕欢; 张果; 惠海岗; 秦建; 唐国庆; 李元昆
Original assignee: Chongqing Yanfeng Johnson Controls Automotive Components Co Ltd
Current assignee: Chongqing Adient Automotive Components Co Ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-01
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a quick folding adjustment mechanism of car seat, including rotating the supporter, rotate and be equipped with the back mounting panel that can rotate relative to it on the supporter, the inboard of back mounting panel is rotated towards the direction of keeping away from rotating the supporter in proper order and is equipped with locking part and unlocking sheet, the upper and lower both ends of locking part are formed with unlocking groove and latch tooth respectively, the shaping has the locking groove on the radial outer end edge of rotating the supporter, this locking groove suits with the latch tooth, the unlocking sheet has drive division and control division, the drive division is in unlocking groove, be equipped with first spring between unlocking sheet and the back mounting panel; under the action of the first spring, the driving part forces the locking teeth of the locking component to be embedded in the locking grooves; the operating part is controlled to enable the driving part to overcome the elastic resistance of the first spring and drive the locking teeth to be separated from the locking groove. The utility model has the advantages that: the seat back can be quickly laid down.

Description

Quick folding adjustment mechanism of car seat

Technical Field

The utility model belongs to the technical field of car seat, concretely relates to quick folding adjustment mechanism of car seat.

Background

At present, almost all automobile seats have a backrest inclination angle adjusting function so as to meet the requirements of riding comfort and riding of people with different body types. In the prior art, the inclination angle adjustment of the backrest is mainly realized by depending on an angle adjuster, the angle adjuster can realize the angle change between the backrest and a seat frame of a seat, but when the angle adjuster cannot work normally, the backrest can be kept fixed, and the rotation adjustment cannot be carried out. Certain potential safety hazards exist, and even drivers and passengers cannot escape when emergency accidents happen.

Especially, the configuration of the electric seat is promoted year by year, and the market share of the middle and rear seats for controlling the backrest rotation adjustment in an electric mode is gradually increased, so that the possibility that the backrest of the automobile seat cannot be adjusted due to unexpected power failure is higher and higher, and the life safety of passengers is seriously threatened.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a quick folding adjustment mechanism of car seat can realize falling fast of backrest.

In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the utility model provides a quick folding adjustment mechanism of car seat which the key lies in: the backrest installation plate is provided with a locking part and an unlocking plate in sequence on the radial outer side of the rotary support body, the locking part and the unlocking plate are both rotationally connected with the backrest installation plate, the upper end and the lower end of the locking part are respectively provided with an unlocking groove and a locking tooth, the edge of the radial outer end of the rotary support body is provided with a locking groove, the locking groove is matched with the locking tooth, the unlocking plate is provided with a driving part and an operating part, the driving part is at least partially embedded into the unlocking groove, and a first spring is arranged between the unlocking plate and the backrest installation plate; under the action of the first spring, the driving part forces the locking teeth of the locking component to be embedded in the locking grooves; the operating part is controlled to enable the driving part to overcome the elastic resistance of the first spring and drive the locking teeth to be separated from the locking groove.

Adopt above-mentioned structure, on the rotation supporter is fixed in the seat frame of seat, on the rotation supporter is fixed in the back of seat, under the normality, lock tooth gomphosis is in the locked groove, make back mounting panel and rotation supporter keep fixed connection relation, relative rotation does not take place between the two, when meeting emergency or need directly to fall the back, through outside cable traction control unlocking plate rotation, can make the lock tooth break away from the locked groove, realize the unblock, at this moment, back mounting panel and rotation supporter are swing joint relation, the event can make the back put down flat fast.

Preferably, the method comprises the following steps: the unlocking piece is rotatably installed on the backrest installation plate through a first rotating shaft, a positioning piece is sleeved on the first rotating shaft, an outwards protruding positioning portion is arranged on the positioning piece, the positioning piece can rotate synchronously with the unlocking piece, and when the locking teeth of the locking component are embedded in the locking groove, the positioning portion is abutted against the upper end edge of the locking component. By adopting the structure, the locking strength is improved, the fit clearance of the locking part can be eliminated, and the locking reliability is improved.

Preferably, the method comprises the following steps: the spacer has outside bellied linkage piece, be equipped with the projection in the portion of controlling, this projection is located between linkage piece and the location portion, and the spacer can be relative and rotate in the unblock piece, and installs the second spring between the two, and under the effect of this second spring, location portion can move towards the direction that is close to locking part, controls portion of controlling, the projection can drive location portion through the linkage piece and move towards the direction of keeping away from locking part. By adopting the structure, the structure design is ingenious, in the unlocking process, the rotation of the unlocking piece drives the driving part on the unlocking piece to move, and then the convex column and the linkage block drive the positioning piece to move, so that the driving part and the positioning part can both leave the locking part, and the unlocking is realized on the basis of higher locking strength.

Preferably, the method comprises the following steps: the unlocking piece is provided with a hanging part protruding outwards, the hanging part is provided with a first hanging groove, the positioning piece is provided with a second hanging groove, the second spring is in an omega shape, and two ends of the second spring are respectively hung on the first hanging groove and the second hanging groove. The structure is adopted, so that the assembly is convenient.

Preferably, the method comprises the following steps: the width of the unlocking groove is larger than that of the driving part, and the driving part has an idle stroke in the unlocking process. By adopting the structure, in the unlocking process, the locking part is still pressed by the positioning part of the positioning piece at the moment that the driving part just leaves the unlocking groove, the convex column is contacted with the linkage block and drives the positioning piece to rotate along with the further movement of the unlocking piece, and after the positioning part of the positioning piece leaves the locking part, the driving part is contacted with the other side of the unlocking groove, so that the locking teeth of the locking part are driven to be separated from the unlocking groove, and the backrest is unlocked.

Preferably, the method comprises the following steps: the locking part is installed on the backrest mounting plate through the rotation of the second rotating shaft, the two sides of the unlocking groove are provided with an unlocking surface and a locking surface, wherein the unlocking surface is close to the bottom of the unlocking groove and is of an arc surface structure, and the arc surface structure is sunken towards the direction close to the second rotating shaft. By adopting the structure, the unlocking reliability can be ensured.

Preferably, the method comprises the following steps: and a third spring is arranged between the locking component and the backrest mounting plate. By adopting the structure, certain elastic pressure can be applied in the locking state, so that the locking teeth are better embedded in the locking groove.

Preferably, the method comprises the following steps: the control part is provided with a hanging hole. Adopt above-mentioned structure to the external cable of erection joint.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the angle adjuster of the seat back can not work normally due to accidents or sudden power failure, the unlocking sheet is controlled to enable the locking component to release the rotation limitation on the back mounting plate, and the seat back can rotate freely, so that the emergency escape function can be realized.

2. The locking mechanism has extremely high locking strength in a locking state, even under severe shaking such as vehicle collision, the locking teeth of the locking component can still be kept in the locking groove, and the safety factor is high.

3. The quick folding adjusting mechanism can also be used as an easy-entry function and one-key lying down function of the middle and rear row seats.

4. The unlocking piece is controlled to rotate through traction of the external inhaul cable, so that the unlocking of the locking part can be realized, and the technical advantage of convenience in unlocking operation is achieved.

Drawings

FIGS. 1 and 6 are schematic views showing the structure of a folding adjustment mechanism, in which the covering member of FIG. 1 is hidden;

fig. 2 to 5 are schematic views showing changes of the folding adjustment mechanism from the locked state to the unlocked state.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

As shown in fig. 1 to 3, a quick folding adjustment mechanism for a vehicle seat relates to the following main components: the backrest comprises a rotary support body 1, a backrest mounting plate 2, a locking component 3, an unlocking sheet 4 and a positioning sheet 7. The backrest mounting plate 2 is fixedly assembled on the backrest of the seat, the rotary supporting body 1 is fixedly connected with a seat frame part of the seat, the lower half part of the backrest mounting plate 2 is rotatably connected with the rotary supporting body 1, the upper half part exceeds the upper end of the rotary supporting body 1, and is provided at the excess portion with a mounting area 21, the locking member 3 and the unlocking plate 4 are rotatably fitted on the mounting area 21 by means of a first rotating shaft 6 and a second rotating shaft 9, respectively, the locking component 3 is positioned between the unlocking sheet 4 and the rotating support body 1, the unlocking sheet 4 is provided with a driving part 4a and an operating part 4b, the upper end of the locking component 3 is formed with an unlocking groove 3b, the driving part 4a of the unlocking sheet 4 is positioned in the unlocking groove 3b, the lower end of the locking component 3 is formed with a locking tooth 3a, the upper end edge of the rotating support body 1 is formed with a locking groove 1a, and the locking groove 1a is matched with the locking tooth 3 a.

The unlocking piece 4 and the backrest mounting plate 2 are mounted between the first spring 5, and the driving part 4a of the unlocking piece 4 forces the locking teeth 3a of the locking member 3 to be embedded in the locking groove 1a under the action of the first spring 5, so that the backrest mounting plate 2 and the rotary support body 1 are kept in a fixed connection relationship, and relative rotation does not occur between the backrest mounting plate and the rotary support body 1. The operating part 4b is provided with a hanging hole 4f, a guy cable on the seat is connected to the hanging hole 4f, the operating part 4b is operated through the guy cable to enable the unlocking sheet 4 to rotate clockwise around the first rotating shaft 6, the driving part 4a can overcome the elastic resistance of the first spring 5, and therefore the locking teeth 3a are driven to be separated from the locking grooves 1a, and the seat backrest is unlocked.

Unlocking the locking member 3 by the above-described link system should require a certain fitting clearance between the driving portion 4a and the unlocking groove 3b, in order to eliminate unlocking vibration caused by the assembly clearance in the unlocking process, in the embodiment, the positioning piece 7 is rotatably sleeved at the outer end of the first rotating shaft 6, the positioning piece 7 is provided with a positioning part 7a and a linkage block 7b which are protruded outwards, the operating part 4b of the unlocking piece 4 is provided with a convex column 4c, the convex column 4c is positioned between the linkage block 7b and the positioning part 7a, when the lock teeth 3a are embedded in the lock groove 1a, namely, in the locking state, the positioning part 7a is abutted against the upper end edge of the locking part 3, the positioning piece 7 can rotate relatively and on the unlocking piece 4, the second spring 8 is arranged between the positioning piece 7 and the unlocking piece, the positioning portion 7a is held in contact with the upper end edge of the lock member 3 by the second spring 8.

With the above configuration, after the folding adjustment mechanism is mounted on the seat, the lock teeth 3a are fitted in the lock grooves 1a in a normal use state of the seat. When the backrest needs to be unlocked, the unlocking plate 4 is pulled by the inhaul cable to rotate, so that the backrest can be unlocked.

During backrest unlocking, the kinematic relationships of the various components are as follows:

as shown in fig. 2 to 5, the width of the unlocking groove 3b is greater than the width of the driving portion 4a, the unlocking surface a and the locking surface b are provided on the left and right sides of the unlocking groove 3b, during the unlocking process, the unlocking sheet 4 rotates clockwise, at the moment that the driving portion 4a on the unlocking sheet is just separated from the locking surface b, the locking member 3 is still pressed by the positioning portion 7a of the positioning sheet 7, along with the further movement of the unlocking sheet 4, the convex column 4c contacts with the linkage block 7b and drives the positioning sheet 7 to rotate, after the positioning portion 7a of the positioning sheet 7 is separated from the locking member 3, the driving portion 4a contacts with the unlocking surface a of the unlocking groove 3b, and the unlocking sheet 4 continues to rotate, that is, the locking tooth 3a of the locking member 3 can be driven to be separated from the locking groove 1a, thereby completing the unlocking of the backrest.

Further, to ensure the reliability of the unlocking operation, the position of the unlocking surface a near the bottom of the unlocking groove 3b has a cambered structure a1, and the cambered structure a1 is recessed toward the second rotating shaft 9. For the convenience of assembling the second spring 8, the unlocking sheet 4 is provided with a hanging part 4d which protrudes outwards, the hanging part 4d is provided with a first hanging groove 4e, the positioning sheet 7 is provided with a second hanging groove 7c, the second spring 8 is in an omega shape, and two ends of the second spring are respectively hung on the first hanging groove 4e and the second hanging groove 7 c.

As shown in fig. 1 and 3, a third spring 10 is further provided between the locking member 3 and the backrest mounting plate 2, and in the locked state, the third spring 10 can apply a certain elastic pressure so that the locking teeth 3a are firmly fitted in the locking grooves 1 a. Meanwhile, in the locked state, the first spring 5, the second spring 8 and the third spring 10 exert elastic thrusts on the unlocking piece 4, the positioning piece 7 and the locking member 3, respectively, and each elastic thrusts can act on the locking member 3, so the locking teeth 3a in this embodiment can be extremely stably held in the locking grooves 1a, and the safety factor of normal use of the seat is higher.

As shown in fig. 6, in order to facilitate the mounting of the first rotating shaft 6 and the second rotating shaft 9, the backrest mounting plate 2 is equipped with a covering member 11 at a position corresponding to the mounting area 21, both ends of the first rotating shaft 6 and the second rotating shaft 9 are supported on the covering member 11 and the backrest mounting plate 2, respectively, and the covering member 11 is provided to also function as a shield for the moving member.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides a quick folding adjustment mechanism of car seat which characterized in that: comprises a rotary supporting body (1), a backrest mounting plate (2) which can rotate relative to the rotary supporting body (1) is assembled on the rotary supporting body (1), the backrest mounting plate (2) is sequentially provided with a locking component (3) and an unlocking plate (4) at the radial outer side of the rotary supporting body (1), the locking component (3) and the unlocking plate (4) are both rotationally connected with the backrest mounting plate (2), wherein, the upper end and the lower end of the locking component (3) are respectively provided with an unlocking groove (3b) and a locking tooth (3a), a locking groove (1a) is formed on the edge of the radial outer end of the rotary supporting body (1), the lock groove (1a) is adapted to the lock tooth (3a), the unlocking sheet (4) is provided with a driving part (4a) and an operating part (4b), wherein, the driving part (4a) is at least partially embedded into the unlocking groove (3b), and a first spring (5) is arranged between the unlocking sheet (4) and the backrest mounting plate (2); under the action of the first spring (5), a driving part (4a) forces the locking teeth (3a) of the locking component (3) to be embedded in the locking grooves (1 a); the operating part (4b) is controlled to enable the driving part (4a) to overcome the elastic resistance of the first spring (5) and drive the locking teeth (3a) to be separated from the locking grooves (1 a).

2. The vehicle seat quick fold adjustment mechanism of claim 1, wherein: separate locking plate (4) and rotate through first pivot (6) and install on back mounting panel (2), the cover is equipped with spacer (7) on first pivot (6), is equipped with outside bellied location portion (7a) on spacer (7), and spacer (7) can be followed separate locking plate (4) synchronous rotation, are in as lock tooth (3a) gomphosis of locking part (3) during in locked groove (1a), location portion (7a) support and lean on the upper end edge of locking part (3).

3. The vehicle seat quick fold adjustment mechanism of claim 2, wherein: locating plate (7) have outside bellied linkage piece (7b), be equipped with projection (4c) on operation portion (4b), this projection (4c) are located between linkage piece (7b) and location portion (7a), and locating plate (7) can be relative and rotate in unblock piece (4), and install second spring (8) between the two, and under the effect of this second spring (8), location portion (7a) can be towards the direction motion of being close to locking part (3), controls operation portion (4b), projection (4c) can drive location portion (7a) through linkage piece (7b) and move towards the direction of keeping away from locking part (3).

4. The vehicle seat quick fold adjustment mechanism of claim 3, wherein: the unlocking plate is characterized in that a hanging part (4d) protruding outwards is arranged on the unlocking plate (4), a first hanging groove (4e) is formed in the hanging part (4d), a second hanging groove (7c) is formed in the positioning plate (7), the second spring (8) is in an omega shape, and two ends of the second spring are respectively hung on the first hanging groove (4e) and the second hanging groove (7 c).

5. The automobile seat quick-folding adjusting mechanism according to claim 3 or 4, characterized in that: the width of the unlocking groove (3b) is larger than that of the driving part (4a), and the driving part (4a) has an idle stroke in the unlocking process.

6. The automobile seat quick-folding adjustment mechanism according to any one of claims 1 to 4, characterized in that: the locking part (3) is rotatably installed on the backrest installation plate (2) through the second rotating shaft (9), the two sides of the unlocking groove (3b) are provided with an unlocking surface (a) and a locking surface (b), wherein the position of the unlocking surface (a) close to the bottom of the unlocking groove (3b) is of an arc surface structure (a1), and the arc surface structure (a1) is sunken towards the direction close to the second rotating shaft (9).

7. The automobile seat quick-folding adjustment mechanism according to any one of claims 1 to 4, characterized in that: and a third spring (10) is arranged between the locking component (3) and the backrest mounting plate (2).

8. The automobile seat quick-folding adjustment mechanism according to any one of claims 1 to 4, characterized in that: the operating part (4b) is provided with a hanging hole (4 f).

9. The automobile seat quick-folding adjustment mechanism according to any one of claims 1 to 4, characterized in that: the backrest mounting plate (2) is provided with a covering part (11).