CN216659685U

CN216659685U - Turnover headrest

Info

Publication number: CN216659685U
Application number: CN202220305408.XU
Authority: CN
Inventors: 邓新元; 李亚军
Original assignee: Chongqing Adient Automotive Components Co Ltd
Current assignee: Chongqing Adient Automotive Components Co Ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-06-03
Anticipated expiration: 2032-02-15

Abstract

The utility model discloses a turnover headrest, which comprises a headrest rod, wherein a headrest base body is rotatably connected onto the headrest rod, a limiting part is fixedly arranged on the headrest rod, and a use limiting groove and a folding limiting groove are formed in the limiting part; the headrest base body is internally and rotatably provided with a locking disc and a linkage part, the locking disc is provided with a locking part, the linkage part is linked with the locking disc, a first elastic element is arranged between the linkage part and the headrest base body, and the elastic driving force of the first elastic element can enable the locking part to be kept in a use limiting groove or a folding limiting groove; the button assembly is mounted on the headrest base body, and when the button assembly is operated, the linkage component can be forced to rotate against the resistance of the first elastic element, and the locking portion is driven to leave the use limiting groove or the folding limiting groove. The utility model has the beneficial effects that: the headrest can be folded backwards, so that the requirement of laws and regulations on the mounting height of the headrest is met, and the convenience of forward overturning and using the seat is improved.

Description

Turnover headrest

Technical Field

The utility model belongs to the technical field of automobile seats, and particularly relates to a turnover headrest.

Background

The seat headrest is a driving comfort configuration article and a safety protection article, is arranged at the top of a backrest of an automobile seat, can support the head of a driver and passengers during driving, provides comfortable sitting feeling for the driver and passengers, and reduces impact force borne by the neck of the passengers when accidents happen.

In prior art, the general formula structure as an organic whole of headrest is installed on the back top, in order to satisfy the requirement of regulation to the headrest height, the mounting height ratio of headrest in the car is more invariable, only has its self altitude mixture control function can suitably change the mounting height of headrest in the car, and when the back row seat overturned forward, the headrest interferes with the front seat easily, and it is relatively poor to use convenient type.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a foldable headrest, which can be kept upright in a use state, and also can be folded backwards and kept in a non-use state, so as to meet the height requirement of the law, and increase the convenience of forward tilting use of the seat.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a turn over a headrest, is including being used for installing the headrest pole at back top, the last rotation of headrest pole is connected with the headrest base member, and its key lies in:

the headrest rod is fixedly provided with a limiting part, and the limiting part is provided with a use limiting groove and a folding limiting groove;

a locking disc and a linkage part are rotationally arranged in the headrest base body, wherein the locking disc is provided with a locking part, the linkage part is linked with the locking disc, a first elastic element is arranged between the linkage part and the headrest base body, and the locking part can be kept in a use limiting groove or a folding limiting groove by the elastic driving force of the first elastic element;

the headrest base body is provided with a button assembly, and the button assembly is operated to force the linkage part to rotate against the resistance of the first elastic element and drive the locking part to leave the use limit groove or the folding limit groove.

With the above structure, when the locking part is kept in the use limit groove, the headrest is in an upright use state; when the locking part is kept in the folding limiting groove, the headrest is in a folded state after being folded; therefore, the headrest can be switched between the use state and the folded state by operating the button assembly.

Preferably, the method comprises the following steps: and when the locking part leaves the folding limiting groove, the second elastic element can drive the locking part to automatically move to the position of the using limiting groove along with the headrest base body. With the above structure, after the button assembly is pressed to separate the locking part from the folding limiting groove, the headrest can be automatically unfolded to the upright use state by the second elastic element.

Preferably, the method comprises the following steps: the headrest base body is internally provided with an installation convex column and positioning convex columns positioned on two sides of the installation convex column, the middle of the locking disc is rotatably assembled on the installation convex column, and the locking disc is provided with an arc-shaped hole at the position corresponding to the positioning convex column. By adopting the structure, the rotation angle of the locking disc can be reasonably limited, and the locking part can just leave the folding limit groove or use the limit groove during unlocking.

Preferably, the method comprises the following steps: the locking disc is provided with a linkage piece which extends outwards along the radial direction of the locking disc, the linkage piece is provided with a strip-shaped hole, and the linkage part is provided with a cylinder which is slidably installed in the strip-shaped hole. By adopting the structure, the button assembly pushes the linkage part to rotate, so that the locking disc can rotate to finish unlocking.

Preferably, the method comprises the following steps: the button assembly comprises a push rod capable of moving linearly and a return spring sleeved on the push rod, and the inner end of the push rod can touch the linkage part. By adopting the structure, the push rod drives the linkage part to rotate in a touch manner, and the linkage part can be ensured to be better automatically reset under the action of the first elastic element.

Preferably, the method comprises the following steps: the headrest base body is provided with an assembly hole, the linkage part is provided with an installation column which is rotatably connected with the assembly hole, the installation column is of a hollow structure, the side wall of the installation column is provided with a weakening notch, and the weakening notch is provided with an elastic clamping tongue. Adopt above-mentioned structure to the linkage part is installed fast in the convenience.

Preferably, the method comprises the following steps: the limiting component is provided with two reference pieces distributed along the width direction of the headrest, each reference piece is provided with a using limiting groove and a folding limiting groove, and the locking part is arranged at the position of the locking disc corresponding to the two reference pieces. By adopting the structure, the locking strength can be ensured.

Preferably, the method comprises the following steps: a rack component is sleeved outside the reference sheet, an arc-shaped rack is arranged on the side of the rack component, and a damping gear meshed with the arc-shaped rack is mounted on the headrest base body. By adopting the structure, the headrest can rotate more smoothly, the comfort is better, and the headrest is rich in high-grade feeling.

Preferably, the method comprises the following steps: one end of the locking disc, which is far away from the linkage piece, is provided with a protruding part, the protruding part is provided with a pull rope, and the other end of the pull rope is used for being connected with a rotating mechanism of the seat armrest. By adopting the structure, the headrest control device can be suitable for headrests on large armrests on the back row, and plays a role in linkage control of the seat.

Preferably, the method comprises the following steps: the headrest base member includes procapsid and the back casing that the assembly is linked together, the procapsid lower part is equipped with first semi-annular, and the lower part of back casing is equipped with second semi-annular, and the circular port that the headrest base member encloses through first semi-annular and second semi-annular rotates and installs on the headrest pole.

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

1. the headrest can be folded backwards, so that the requirement of laws and regulations on the mounting height of the headrest is met, and the convenience of forward overturning and using the seat is improved.

2. No matter the headrest is in the service position, still in non-service position, it is fixed spacingly all to have physical structure to the headrest, can fully guarantee the steadiness of headrest in two positions, has not only ensured the security by bus, but also has promoted the travelling comfort of headrest.

3. In some specific scenarios, the headrest is folded backwards, which can increase the field of view of the rear passengers.

4. The locking and unlocking control structure is reasonable in design, and has the technical advantages of high feasibility, strong practicability, good operation convenience and the like.

Drawings

Fig. 1 is a schematic structural view of the flip headrest (with the rear housing of the headrest base concealed);

FIG. 2 is an exploded view of the fold-over headrest;

FIG. 3 is a schematic view showing a connection relationship between components for locking and unlocking the headrest base body;

FIG. 4 is a schematic structural view of the locking plate;

FIG. 5 is a schematic structural view of a position limiting member;

FIG. 6 is a schematic view of the linkage assembly;

fig. 7 and 8 are cross-sectional views of the headrest in the use position and the folded-over position, respectively.

Detailed Description

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

As shown in fig. 1 and 2, a turnover headrest comprises a headrest rod 1 and a headrest base body 2, wherein the headrest base body 2 is composed of a front shell 2d and a rear shell 2e which are assembled and connected together, a first half ring groove 2f is formed in the lower portion of the front shell 2d, a second half ring groove 2g is formed in the lower portion of the rear shell 2e, and the headrest base body 2 is rotatably connected to the headrest rod 1 through a circular hole formed by the first half ring groove 2f and the second half ring groove 2g in a surrounding mode.

As shown in fig. 1 and 3, the headrest rod 1 is fixedly provided with a stopper member 3, the stopper member 3 is provided with a use stopper groove 3a and a folding stopper groove 3b, and the use stopper groove 3a and the folding stopper groove 3b are distributed along the rotation direction of the headrest base body 2. The headrest base body 2 is internally rotatably provided with a locking disc 4 and a linkage part 5, the rotation direction of the locking disc 4 is perpendicular to that of the headrest base body 2, the locking disc 4 is provided with a locking part 4a matched with a using limiting groove 3a and a folding limiting groove 3b, the locking disc 4 is provided with a linkage piece 4c extending outwards along the radial direction of the locking disc, the linkage piece 4c is provided with a strip-shaped hole 4d, the linkage part 5 is provided with a cylinder 5a, the cylinder 5a is slidably arranged in the strip-shaped hole 4d and can realize linkage between the linkage part 5 and the locking disc 4, a first elastic element 6 is arranged between the linkage part 5 and the headrest base body 2, and the locking part 4a can be forced by the elastic force of the first elastic element 6 to be kept in the using limiting groove 3a or the folding limiting groove 3 b.

Referring to fig. 7 and 8, when the locking portion 4a is held in the use restriction groove 3a, the headrest is in an upright use state; when the lock portion 4a is held in the fold limit groove 3b, the headrest is folded back.

As shown in fig. 1 and 3, in order to facilitate switching between the usage state and the folded state of the headrest, a button assembly 7 is mounted on the headrest base body 2, the button assembly 7 includes a push rod 7a capable of moving linearly and a return spring 7b sleeved on the push rod 7a, after the button assembly 7 is pressed, the push rod 7a drives the linkage component 5 to move in a touching manner, the linkage component 5 rotates against the resistance of the first elastic element 6 and drives the locking disc 4 to rotate, so that the locking portion 4a is separated from the usage limiting groove 3a or the folding limiting groove 3b, then the headrest base body 2 can rotate relative to the headrest rod 1, and after the headrest base body 2 rotates to a corresponding position, the first elastic element 6 enables the locking portion 4a to enter the corresponding usage limiting groove 3a or the folding limiting groove 3b again.

Further, as can be seen from fig. 1, a second elastic element 8 is assembled between the headrest base body 2 and the headrest rod 1, and when the locking portion 4a leaves the folding limiting groove 3b, the second elastic element 8 can drive the locking portion 4a to automatically move to the position of using the limiting groove 3a along with the headrest base body 2, that is: after the folded position is unlocked, the second elastic element 8 can automatically return the headrest to the upright use state. For ease of assembly, in this embodiment, the first and second elastic elements 6 and 8 are both torsion springs.

The foldable headrest provided by this embodiment can also be applied to a large armrest of a rear seat, at this time, in order to be linked with the rotation of the large armrest, please refer to fig. 1, one end of the locking disc 4 far away from the linking piece 4c is provided with a protruding portion 4e, a pulling cable 11 is installed on the protruding portion 4e, and the other end of the pulling cable 11 is connected to the rotating mechanism of the large armrest. By the design, when the big handrail is used forwards, the headrest is automatically folded, and the cup stand and other mechanical parts in the headrest can be conveniently opened.

As shown in fig. 4, for easy to assemble, be equipped with installation convex column 2a in the headrest base member 2, the middle part of locking dish 4 rotates the assembly on installation convex column 2a, for the turned angle of reasonable limited locking dish 4, headrest base member 2 is equipped with location convex column 2b in the position that lies in installation convex column 2a both sides, locking dish 4 is equipped with arc hole 4b in the position that corresponds location convex column 2b, arc hole 4b moves on location convex column 2b, can guarantee that locking portion 4a just leaves folding spacing groove 3b or use spacing groove 3a can during the unblock.

As shown in fig. 2 and 6, during headrest assembly, in order to facilitate quick installation of the linkage component 5, the headrest base body 2 is provided with an assembly hole 2c, the linkage component 5 is provided with an installation column 5b rotatably connected with the assembly hole 2c, the installation column 5b is of a hollow structure, the side wall of the installation column is provided with a weakening gap 5d, the weakening gap 5d is provided with an elastic clamping tongue 5c, and the installation column 5b of the linkage component 5 can be clamped into the assembly hole 2c through the elastic clamping tongue 5 c.

As shown in fig. 2 and 5, in order to improve the locking strength, the limiting member 3 has two reference pieces 31 distributed in the width direction of the headrest, each reference piece 31 is provided with a use limiting groove 3a and a folding limiting groove 3b, and the locking disc 4 is provided with a locking part 4a at a position corresponding to the two reference pieces 31.

As shown in fig. 3, a rack member 9 is sleeved outside one of the reference plates 31, an arc-shaped rack 9a is arranged on a side of the rack member 9, a damping gear 10 engaged with the arc-shaped rack 9a is mounted on the headrest base body 2, and the damping gear 10 can enable the headrest to rotate smoothly.

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

Claims

1. The utility model provides a turn over a headrest, is including being used for installing headrest pole (1) at the back top, it is connected with headrest base member (2), its characterized in that to rotate on headrest pole (1):

the headrest rod (1) is fixedly provided with a limiting part (3), and the limiting part (3) is provided with a use limiting groove (3a) and a folding limiting groove (3 b);

a locking disc (4) and a linkage component (5) are rotationally arranged in the headrest base body (2), wherein a locking portion (4a) is arranged on the locking disc (4), the linkage component (5) is linked with the locking disc (4), a first elastic element (6) is arranged between the linkage component (5) and the headrest base body (2), and the locking portion (4a) can be kept in a use limiting groove (3a) or a folding limiting groove (3b) by the elastic driving force of the first elastic element (6);

a button assembly (7) is mounted on the headrest base body (2), and the button assembly (7) is operated to force the linkage part (5) to rotate against the resistance of the first elastic element (6) and drive the locking part (4a) to leave the use limiting groove (3a) or the folding limiting groove (3 b).

2. The fold-over headrest of claim 1, wherein: a second elastic element (8) is assembled between the headrest base body (2) and the headrest rod (1), and when the locking portion (4a) leaves the folding limiting groove (3b), the second elastic element (8) can drive the locking portion (4a) to automatically move to the position of the using limiting groove (3a) along with the headrest base body (2).

3. The fold-over headrest of claim 1, wherein: the headrest is characterized in that an installation convex column (2a) and positioning convex columns (2b) located on two sides of the installation convex column (2a) are arranged in the headrest base body (2), the middle of the locking disc (4) is rotatably assembled on the installation convex column (2a), and arc-shaped holes (4b) are formed in the positions, corresponding to the positioning convex columns (2b), of the locking disc (4).

4. The fold-over headrest of claim 1, wherein: be equipped with on locking dish (4) along its radial outside linkage piece (4c) that extends, be equipped with bar hole (4d) on linkage piece (4c), be equipped with cylinder (5a) of slidable mounting in bar hole (4d) on linkage part (5).

5. The fold-over headrest of claim 1, wherein: the button assembly (7) comprises a push rod (7a) capable of moving linearly and a return spring (7b) sleeved on the push rod (7a), and the inner end of the push rod (7a) can touch the linkage component (5).

6. The fold-over headrest of claim 1, wherein: be equipped with pilot hole (2c) on headrest base member (2), be equipped with on linkage part (5) and rotate erection column (5b) of being connected with pilot hole (2c), erection column (5b) are hollow structure, are equipped with weakening breach (5d) on its lateral wall, are equipped with elasticity card tongue (5c) on weakening breach (5 d).

7. The fold-over headrest of claim 1, wherein: the limiting component (3) is provided with two reference sheets (31) distributed along the width direction of the headrest, each reference sheet (31) is provided with a using limiting groove (3a) and a folding limiting groove (3b), and the locking disc (4) is provided with a locking part (4a) at the position corresponding to the two reference sheets (31).

8. The fold-over headrest of claim 7, wherein: one set of the base plate (31) is sleeved with a rack component (9), an arc-shaped rack (9a) is arranged on the side of the rack component (9), and a damping gear (10) meshed with the arc-shaped rack (9a) is mounted on the headrest base body (2).

9. The fold-over headrest of claim 4, wherein: one end of the locking disc (4) far away from the linkage piece (4c) is provided with a protruding portion (4e), the protruding portion (4e) is provided with a pull cable (11), and the other end of the pull cable (11) is used for being connected with a rotating mechanism of the seat armrest.

10. The fold-over headrest of claim 1, wherein: headrest base member (2) are including assembly link procapsid (2d) and back casing (2e), procapsid (2d) lower part is equipped with first semi-ring groove (2f), and the lower part of back casing (2e) is equipped with second semi-ring groove (2g), and headrest base member (2) are installed on headrest pole (1) through the circular port rotation that first semi-ring groove (2f) and second semi-ring groove (2g) enclose.