Headrest assembly of seat, seat and vehicle

Abstract

The utility model discloses a headrest assembly of a seat, the seat and a vehicle. The headrest assembly of the seat comprises a headrest main body and a headrest assembly, the turnover assembly is arranged in the headrest main body, the turnover assembly selectively drives the headrest main body to turn over relative to the turnover assembly, and the turnover assembly is provided with a locking part; the locking assembly is arranged in the headrest body, the locking assembly is connected with the headrest body and can move relative to the overturning assembly, and the locking assembly is selectively matched with the locking part in a locking mode. Therefore, the turnover assembly and the locking assembly which can move relative to the turnover assembly are arranged in the headrest main body, the locking assembly can be moved to be separated from the locking part on the turnover assembly, then the headrest main body can be separated from the turnover assembly, and the headrest main body can be turned over; by means of the arrangement, a locking mechanism of the headrest assembly can be simplified, and the headrest body can be turned over conveniently after the seat is put down, so that the space occupied by the seat in a vehicle after the seat is put down is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a headrest assembly of a seat, a seat and a vehicle. Background Art

[0002] In daily life, the rear seat backrests are usually laid flat to accommodate more luggage. Due to the limited space inside the car body, the rear headrests will collide with the front seat backrests when the backrests are laid flat, resulting in the rear backrests not being able to be laid flat. The folding headrests will automatically fold when the backrests are laid flat, thus saving space when the rear backrests are laid flat.

[0003] In the related art, the folding headrest relies on locking sheet metal and the seat back, but such a locking mechanism is complex and requires high precision of parts. In addition, after locking, the sheet metal parts may shake, affecting the reliability of the seat. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a headrest assembly for a seat, which has a simple structure and can be turned over.

[0005] The utility model further provides a seat.

[0006] The utility model further provides a vehicle.

[0007] According to the embodiment of the utility model, the headrest assembly of the seat includes: a headrest body; a flip assembly, which is arranged in the headrest body, the flip assembly selectively drives the headrest body to flip relative to the flip assembly, and the flip assembly is provided with a locking part; a locking assembly, which is arranged in the headrest body, the locking assembly and the headrest body are interconnected and movable relative to the flip assembly, and the locking assembly is selectively locked with the locking part.

[0008] Therefore, by providing a flip assembly and a locking assembly movable relative to the flip assembly in the headrest body, the locking assembly can be moved to disengage it from the locking portion on the flip assembly, thereby enabling the headrest body to be disengaged from the flip assembly and the headrest body to be flipped. Such a setting can not only simplify the locking mechanism of the headrest assembly, but also facilitate flipping of the headrest body after the seat is folded down, thereby saving space occupied in the vehicle after the seat is folded down.

[0009] According to some embodiments of the utility model, the locking assembly is located above the flip assembly, the locking assembly includes a locking pin, the locking portion is a locking hole, and the locking pin is movable in the up and down directions to selectively extend into the locking hole to lock with the locking hole.

[0010] According to some embodiments of the utility model, the locking assembly also includes a drive cable, one end of which is connected to the seat frame, and the other end of which is retractably connected to the locking pin to selectively drive the locking pin to move upward and disconnect the lock from the locking hole.

[0011] According to some embodiments of the present invention, the locking assembly also includes a first elastic member, which is arranged in the headrest body and sleeved on the outer side of the locking pin. The circumferential side wall of the locking pin is provided with a limiting flange, and the limiting flange selectively squeezes the first elastic member upward.

[0012] According to some embodiments of the utility model, the locking assembly includes a bracket member, the bracket member is arranged in the headrest body, the bracket member is provided with an avoidance hole, the bracket member is provided with a buffer pad, the buffer pad selectively cooperates with the limiting flange for buffering, and the locking pin selectively passes through the avoidance hole and locks with the locking hole.

[0013] According to some embodiments of the utility model, the flipping assembly includes a shell, a rotating shaft and a second elastic member, the locking portion is arranged on the shell, the second elastic member is sleeved on the rotating shaft and its two ends are respectively connected to the shell and the headrest body, so as to drive the headrest body to flip after the locking assembly and the locking portion are disconnected.

[0014] According to some embodiments of the utility model, a flip guide surface is provided on the shell, and the flip guide surface selectively moves and guides with the locking pin.

[0015] According to some embodiments of the utility model, the flip guide surface is arc-shaped, and an arc-shaped guide portion is provided at the end of the locking pin, and the arc-shaped guide portion selectively moves and guides with the flip guide surface.

[0016] The seat according to the utility model comprises the headrest assembly of the seat mentioned above.

[0017] The vehicle according to the utility model comprises the seat described above.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1is a partial three-dimensional schematic diagram of a headrest assembly according to an embodiment of the utility model;

[0021] Figure 2 is a structural schematic diagram of a headrest assembly in a locked state according to an embodiment of the utility model;

[0022] Figure 3 is a structural schematic diagram of a headrest assembly in an unlocked state according to an embodiment of the utility model;

[0023] Figure 4 is a schematic structural diagram of the headrest assembly according to the embodiment of the utility model when it is flipped 85° relative to the flip assembly;

[0024] Figure 5 It is a structural schematic diagram of a headrest assembly according to another embodiment of the utility model.

[0025] Reference numerals:

[0026] 100. Headrest assembly;

[0027] 10. Headrest body; 11. Headrest front box body; 12. Headrest rear box body;

[0028] 20. flip assembly; 21. locking portion; 22. housing; 221. flip guide surface; 23. rotating shaft; 24. second elastic member;

[0029] 30. Locking assembly; 31. Locking pin; 311. Limiting flange; 312. Arc-shaped guide portion; 32. Driving cable; 33. First elastic member; 34. Bracket member; 341. Avoidance hole;

[0030] 40. Cushion. DETAILED DESCRIPTION

[0031] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0032] See the figure below for reference Figure 1-Figure 5 A headrest assembly 100 for a seat according to an embodiment of the present invention is described.

[0033] Combination Figure 1-Figure 5 As shown, the headrest assembly 100 of the seat according to the embodiment of the utility model can mainly include: a headrest body 10, a flip assembly 20 and a locking assembly 30. Among them, the headrest body 10 includes a headrest front box body 11 and a headrest rear box body 12, and the headrest front box body 11 and the headrest rear box body 12 can be connected and fixed, and together define a accommodating space, which can not only provide a stable and reliable setting position for the flip assembly 20 and the locking assembly 30, but also enable the headrest assembly 100 to provide support for the human head.

[0034] Furthermore, the headrest body 10 is generally kept flat with the seat back, so as to support the head of the person sitting in the vehicle. When the seat back is folded down, the back is folded forward relative to the vehicle body, and the headrest body 10 tilts forward together with the back, but the size of the back and the headrest body 10 exceeds the distance between the folded seat and the back of the previous row of seats, so that the headrest body 10 hits the back of the previous row of seats, so that the folded seat back cannot be completely flat, which will occupy the space in the vehicle cabin, reduce the effective space for carrying objects in the vehicle cabin, and is not convenient for use when large-volume objects need to be transported.

[0035] In the embodiment of the utility model, the flip assembly 20 can selectively drive the headrest body 10 to flip the headrest body 10 relative to the flip assembly 20, so that when the seat back is folded down, the headrest body 10 can be driven by the flip assembly 20 to fold up, so as to reduce the size of the folded seat back. During the folding process, the headrest body 10 will not touch the back of the front seat, so that the seat back can be completely flat, thereby saving effective space for carrying objects in the vehicle cabin, and it can be convenient for use when a large volume of objects needs to be transported.

[0036] Furthermore, the locking assembly 30 is connected to the headrest body 10, so that the locking assembly 30 and the headrest body 10 can be turned over synchronously. The turning assembly 20 is provided with a locking portion 21, and the locking assembly 30 is movable relative to the turning assembly 20, and the headrest assembly 100 has a locked state and an unlocked state.

[0037] When the locking assembly 30 moves to the locking state of the headrest assembly 100, the locking assembly 30 is locked with the locking portion 21, so that the locking assembly 30 cannot move relative to the flip assembly 20, that is, the headrest body 10 is locked on the flip assembly 20, and the flip assembly 20 cannot drive the headrest body 10 to flip relative to the flip assembly 20. At this time, the headrest body 10 and the seat back remain relatively flat to provide good support for the human body.

[0038] When the locking assembly 30 moves to the unlocked state of the headrest assembly 100, the locking assembly 30 and the locking portion 21 are unlocked, so that the locking assembly 30 can be flipped relative to the flip assembly 20, and the flip assembly 20 can drive the headrest body 10 to flip relative to the flip assembly 20, thereby making the headrest assembly 100 flip relative to the seat back, so that the seat back can be completely flat, thereby saving space in the vehicle.

[0039] Combination Figure 1As shown, the locking assembly 30 is located above the flip assembly 20. The locking assembly 30 includes a locking pin 31. The locking portion 21 is a locking hole. The locking pin 31 is movable in the up-down direction to selectively extend into the locking hole and lock with the locking hole. Specifically, the flip assembly 20 is connected and fixed to the seat frame to maintain the structural stability of the flip assembly 20 in the headrest body 10. The flip assembly 20 can provide stable and reliable support for the headrest assembly 100. The locking assembly 30 is located above the flip assembly 20, which can ensure that the locking assembly 30 is located on the headrest body 10, so that the locking assembly 30 and the headrest body 10 can be flipped synchronously.

[0040] Furthermore, the locking pin 31 in the locking assembly 30 can move up and down, and the locking portion 21 is actually a locking hole. The locking hole is located on the flip assembly 20 below the locking assembly 30, so that the locking pin 31 can selectively extend into the locking hole and lock with the locking hole through the up and down movement of the locking pin 31. In this way, the movement path of the locking pin 31 can be simplified. The matching accuracy of the locking pin 31 and the locking hole is low, which facilitates the assembly and use of the headrest assembly 100.

[0041] Combination Figure 1 As shown, the locking assembly 30 also includes a drive cable 32, one end of which is connected to the seat frame, and the other end of which is retractably connected to the locking pin 31, so as to selectively drive the locking pin 31 to move upward and disconnect the lock from the locking hole. Specifically, the drive cable 32 can be used to drive the locking pin 31 to move up and down, so that the locking pin 31 can selectively extend into the locking hole. One end of the drive cable 32 is an actuator, and the actuator is connected to the seat frame. The actuator can be fixed in the seat, so that the outside of the seat can be guaranteed to be flat, especially the outside of the headrest body 10 can be guaranteed to be flat, thereby ensuring the riding comfort of the seat. In addition, the driving method of the drive cable 32 includes but is not limited to electric drive.

[0042] The other end of the driving cable 32 is connected to the locking pin 31, so that the actuator can drive the driving cable 32 to pull the locking pin 31. When the seat is used for passengers to sit, the locking pin 31 is locked with the locking hole. When it is necessary to transport large items, the seat back can be laid down, and the driving cable 32 can pull the locking pin 31 upward to disconnect the locking pin 31 from the locking hole, so that the headrest body 10 can be flipped relative to the flip assembly 20 to make the seat back completely flat.

[0043] Combination Figure 1-Figure 4As shown, the locking assembly 30 further includes a first elastic member 33, which is disposed in the headrest body 10 and sleeved on the outer side of the locking pin 31. The circumferential side wall of the locking pin 31 is provided with a limiting flange 311, and the limiting flange 311 selectively presses the first elastic member 33 upward. Specifically, the limiting flange 311 has a circular cross section along the axial direction of the locking pin 31, so that the limiting flange 311 is provided on the circumferential side wall of the locking pin 31, and the first elastic member 33 is sleeved on the outer side of the locking pin 31, and one end thereof abuts against the limiting flange 311. The other end of the first elastic member 33 abuts against the headrest body 10, so that the first elastic member 33 can be disposed between the locking pin 31 and the headrest body 10, so that the first elastic member 33 can move with the locking pin 31, and in the process of the movement of the locking pin 31, the limiting flange 311 can selectively press the first elastic member 33.

[0044] When the locking pin 31 moves upward to the unlocked state, the limiting flange 311 moves upward and presses the first elastic member 33 until the locking pin 31 is unlocked from the locking hole. When the locking pin 31 moves downward to the locked state, the limiting flange 311 moves downward and the first elastic member 33 is released, so that the locking pin 31 is locked with the locking hole.

[0045] Combination Figure 1-Figure 4 As shown, the locking assembly 30 includes a bracket member 34, which is arranged in the headrest body 10, and is provided with an avoidance hole 341. The bracket member 34 is provided with a buffer pad 40, and the buffer pad 40 selectively cooperates with the limiting flange 311 for buffering. The locking pin 31 selectively passes through the avoidance hole 341 and is locked with the locking hole.

[0046] Specifically, the bracket member 34 in the headrest body 10 is connected and fixed to the headrest body 10, which can ensure the structural reliability of the bracket member 34 in the headrest body 10. The bracket member 34 is provided with an avoidance hole 341. When the headrest body 10 is not flipped relative to the flip assembly 20, the avoidance hole 341 on the bracket member 34 corresponds to the locking hole on the flip assembly 20. When the locking pin 31 moves from the unlocked state to the locked state, the locking pin 31 quickly passes through the avoidance hole 341 and the locking hole under the action of its own gravity and the elastic force of the first elastic member 33. In this process, the avoidance hole 341 can ensure that the locking pin 31 accurately extends into the locking hole. After the locking pin 31 is locked with the locking hole, the bracket member 34 can limit and support the upper and lower ends of the locking pin 31 together with the headrest body 10 to prevent the locking pin 31 from shaking in the headrest body 10 and generating abnormal noise.

[0047] Furthermore, in the process of the locking pin 31 falling through the avoidance hole 341 and finally falling into the locking hole and locking with it, the limiting flange 311 on the locking pin 31 will collide with the circumferential position of the avoidance hole 341 corresponding to the bracket part 34, which will accelerate the wear of the limiting flange 311 and affect the structural reliability of the limiting flange 311, which is not conducive to the abutment and cooperation between the limiting flange 311 and the first elastic part 33.

[0048] In an embodiment of the utility model, a buffer pad 40 is provided in the circumference of the bracket member 34 corresponding to the avoidance hole 341, so that a buffering effect can be played on the limiting flange 311 and the bracket member 34 during the falling process of the locking pin 31, and the collision between the limiting flange 311 and the bracket member 34 can be avoided, thereby improving the structural life of the flip assembly 20 and the locking assembly 30, and improving the durability of the headrest assembly 100.

[0049] Combination Figure 1-Figure 4 As shown, the flip assembly 20 includes a shell 22, a rotating shaft 23 and a second elastic member 24. The locking portion 21 is arranged on the shell 22, and the second elastic member 24 is sleeved on the rotating shaft 23, and the two ends are respectively connected to the shell 22 and the headrest body 10, so as to drive the headrest body 10 to flip after the locking assembly 30 and the locking portion 21 are unlocked.

[0050] Specifically, the housing 22 and the shaft 23 of the flip assembly 20 are both connected to the frame of the seat, and the flip assembly 20 and the shaft 23 cannot rotate relative to the seat. The shaft 23 passes through the headrest front box body 11 and the headrest rear box body 12, and lubricating oil is applied between the shaft 23 and the headrest body 10 to ensure that the headrest body 10 rotates smoothly relative to the shaft 23, that is, the headrest body 10 can rotate relative to the flip assembly 20.

[0051] A second elastic member 24 is provided on the rotating shaft 23, and the second elastic member 24 includes but is not limited to a torsion spring. The torsion spring is fixedly provided relative to the rotating shaft 23. When the locking assembly 30 is locked with the locking hole, one end of the torsion spring is connected to the housing 22 of the flip assembly 20, and the other end is connected to the headrest body 10. At this time, the torsion spring is in a compressed state, that is, the torsion spring exerts force on both the flip assembly 20 and the headrest body 10. After the head locking assembly 30 is unlocked from the locking hole, the flip assembly 20 remains stationary, and the force exerted by the torsion spring on the headrest body 10 can drive the headrest body 10 to flip toward the flip assembly 20, thereby accelerating the flipping speed of the headrest body 10 and improving the convenience of the headrest assembly.

[0052] Combination Figure 2-Figure 4As shown, the housing 22 is provided with a flip guide surface 221, and the flip guide surface 221 selectively moves and guides the locking pin 31. Specifically, after the locking pin 31 is unlocked from the locking hole, the driving cable 32 no longer drives the locking pin 31, and the bottom of the locking pin 31 moves to the top of the locking hole.

[0053] Furthermore, the second elastic member 24 drives the headrest body 10 to start flipping relative to the flip assembly 20. The locking pin 31 flips along with the headrest body 10, so that the bottom of the locking pin 31 is offset relative to the locking hole, and the avoidance hole 341 on the bracket member 34 is also staggered with the locking hole. Under the action of the first elastic member 33, the locking pin 31 moves toward the direction of the shell 22. At this time, the locking pin 31 is staggered with the locking hole and will not fall directly into the locking hole, but will contact the flip guide surface 221 on the shell 22. At this time, the locking assembly 30 and the locking hole are still in an unlocked state, and the headrest body 10 can continue to flip under the action of the second elastic member 24, and the bottom of the locking pin 31 moves in a direction away from the locking hole.

[0054] During the flipping process of the headrest body 10, the flipping guide surface 221 on the shell 22 keeps in contact with the bottom of the locking pin 31 and cooperates with the moving guide of the locking pin 31, so that after the headrest body 10 is flipped, it can be ensured that the locking pin 31 is always cooperated with the shell 22.

[0055] When the headrest body 10 needs to be restored to a state where it is flat with the seat back, the headrest body 10 can be manually lifted. During this process, the bottom of the locking pin 31 is matched with the flip guide surface 221 of the shell 22, and the bottom of the locking pin 31 moves toward the position of the locking hole. Because the headrest body 10 is flipped along the axis of the rotating shaft 23, the movement path of the headrest body 10 is fixed. In this way, after the headrest body 10 is lifted, the locking pin 31 can return to the position of the locking hole, and the avoidance hole 341 on the bracket member 34 can also correspond to the locking hole again. When the bottom of the locking pin 31 is disengaged from the flip guide surface 221, the locking pin 31 falls into the locking hole again under the action of the first elastic member 33, and locks with the locking hole, thereby locking the headrest body 10.

[0056] According to the embodiment of the utility model, combined with Figure 2-Figure 5As shown, the flip guide surface 221 is arc-shaped, and the end of the locking pin 31 is provided with an arc-shaped guide portion 312, and the arc-shaped guide portion 312 selectively moves and guides with the flip guide surface 221. Specifically, the flip guide surface 221 provided on the housing 22 is arc-shaped, and the arc-shaped guide portion 312 provided at the end of the locking pin 31 is also arc-shaped, so that when the arc-shaped guide portion 312 abuts and cooperates with the flip guide surface 221, the smoothness of movement of the locking pin 31 relative to the flip assembly 20 can be ensured, thereby not only reducing the wear between the locking pin 31 and the flip assembly 20, but also ensuring the smoothness of movement of the headrest assembly 100, so that the headrest body 10 can be easily flipped to ensure the convenience of use of the headrest assembly 100.

[0057] According to some embodiments of the present invention, Figure 2-Figure 4 As shown, the material of the locking pin 31 and the bracket member 34 includes but is not limited to metal.

[0058] According to other embodiments of the present invention, Figure 5 As shown, the materials of the locking pin 31 and the bracket member 34 include but are not limited to plastic.

[0059] According to the embodiment of the utility model, the headrest assembly 100 of the seat can be applied to the seat. The seat equipped with the headrest assembly 100 of the utility model can easily flip the headrest body 10 when the seat back needs to be folded down, so that the seat back can be completely flat, thereby saving cabin space. Figure 4 As shown, the headrest body 10 can be flipped relative to the flip assembly 20 at an angle of 85°.

[0060] According to an embodiment of the utility model, a vehicle includes a seat of the utility model. The seat of the utility model can flip the headrest body 10, and the unlocking and locking operations of the headrest body 10 and the seat are relatively simple, which can meet the use requirements of the vehicle to transport large-volume items, thus helping to improve the user experience and further enhance the product competitiveness.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A headrest assembly for a seat, characterized in that: include: Headrest body (10); A flip assembly (20), wherein the flip assembly (20) is arranged in the headrest body (10), the flip assembly (20) selectively drives the headrest body (10) to flip relative to the flip assembly (20), and the flip assembly (20) is provided with a locking portion (21); A locking assembly (30), wherein the locking assembly (30) is arranged in the headrest body (10), the locking assembly (30) and the headrest body (10) are connected to each other and are movable relative to the flip assembly (20), and the locking assembly (30) and the locking portion (21) are selectively locked and matched.

2. The headrest assembly of the seat according to claim 1, characterized in that: The locking assembly (30) is located above the flip assembly (20), and the locking assembly (30) comprises a locking pin (31). The locking portion (21) is a locking hole. The locking pin (31) is movable in the up-down direction to selectively extend into the locking hole to lock with the locking hole.

3. The headrest assembly of the seat according to claim 2, characterized in that: The locking assembly (30) also includes a driving cable (32), one end of which is connected to the seat frame, and the other end of which is retractably connected to the locking pin (31) to selectively drive the locking pin (31) to move upward and disconnect the locking from the locking hole.

4. The headrest assembly of the seat according to claim 3, characterized in that: The locking assembly (30) further comprises a first elastic member (33), wherein the first elastic member (33) is arranged in the headrest body (10) and sleeved on the outer side of the locking pin (31), and a limiting flange (311) is arranged on the circumferential side wall of the locking pin (31), and the limiting flange (311) selectively presses the first elastic member (33) upward.

5. The headrest assembly of the seat according to claim 4, characterized in that: The locking assembly (30) comprises a bracket member (34), the bracket member (34) is arranged in the headrest body (10), the bracket member (34) is provided with an avoidance hole (341), the bracket member (34) is provided with a buffer pad (40), the buffer pad (40) selectively cooperates with the limiting flange (311) for buffering, and the locking pin (31) selectively passes through the avoidance hole (341) and cooperates with the locking hole for locking.

6. The headrest assembly of a seat according to claim 2, characterized in that: The flip assembly (20) comprises a shell (22), a rotating shaft (23) and a second elastic member (24); the locking portion (21) is arranged on the shell (22); the second elastic member (24) is sleeved on the rotating shaft (23) and its two ends are respectively connected to the shell (22) and the headrest body (10), so as to drive the headrest body (10) to flip after the locking assembly (30) and the locking portion (21) are unlocked.

7. The headrest assembly of a seat according to claim 6, characterized in that: The housing (22) is provided with a flip guide surface (221), and the flip guide surface (221) selectively moves and guides with the locking pin (31).

8. The headrest assembly of a seat according to claim 7, characterized in that: The flip guide surface (221) is arc-shaped, and an arc-shaped guide portion (312) is provided at the end of the locking pin (31), and the arc-shaped guide portion (312) selectively moves and guides with the flip guide surface (221).

9. A seat, characterized in that: include: A headrest assembly (100) for a seat according to any one of claims 1 to 8.

10. A vehicle, characterized in that: include: The seat as claimed in claim 9.

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