A headrest mechanism foldable forward

Abstract

The utility model discloses a headrest mechanism can be folded to the front, including headrest rod and adjusting machine core assembly, adjusting machine core assembly includes mutually buckled front cover and back cover, and the upper end of headrest rod is inserted into adjusting machine core assembly, and its top end crossbeam is welded with the welding support of locking piece, and the bottom of adjusting machine core assembly is equipped with the arc shape hole of avoiding at headrest rod department, and the torsional spring is arranged between front cover and headrest rod, and the unlocking handle is hinged on front cover, and is equipped with the unlocking handle reset spring between front cover, and its lower end is connected with the middle part of locking piece, and the rear end of locking piece is hinged on front cover, and the front end of locking piece is inserted into the welding support of locking piece, and the unlocking button is located on the side end of adjusting machine core assembly, press the unlocking button, can promote the rotation of unlocking handle to realize the unlocking to drive locking piece to rotate upwards, and the adjusting machine core assembly can be folded to the front under the action of torsional spring after unlocking. The utility model can realize the one -key folding of headrest mechanism, and effectively promotes the convenience of using.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a headrest mechanism that can be folded forward. Background Technology

[0002] In the seating systems of vehicles such as automobiles, headrests play a crucial role as an important safety and comfort component. They not only provide support for passengers' heads and reduce neck fatigue, but also effectively protect passengers' heads and necks in emergencies such as vehicle collisions, reducing the risk of injury.

[0003] With the continuous development of the automotive industry and the increasing demands of consumers for seat comfort and convenience, the function and design of headrests are also constantly being improved. Traditional headrest mechanisms are relatively simple in structure, typically offering only basic support and height adjustment to accommodate different passenger heights. However, in actual use, traditional headrest mechanisms reveal some significant limitations. They usually lack a one-touch folding function. In certain scenarios, such as when passengers need to recline the seat for more resting space or fold down the rear seats to increase luggage space, the headrest position needs to be adjusted. In traditional designs, headrest adjustment often requires passengers to perform a relatively complex manual operation, such as first releasing the headrest's fixing device, then manually adjusting the angle or position, and finally re-fixing it. This method is not only cumbersome and time-consuming, but also, in some situations, due to limited space or inconvenient operation, passengers may find it difficult to smoothly adjust the headrest, causing significant inconvenience. Utility Model Content

[0004] In view of the problems existing in the prior art, the present invention aims to provide a headrest mechanism that can be folded forward and realizes a one-click folding function.

[0005] To achieve the above objectives, this utility model proposes a forward-folding headrest mechanism, including a headrest rod and an adjustment mechanism assembly. The headrest rod is an n-shaped headrest rod. The adjustment mechanism assembly includes a front cover plate and a rear cover plate that interlock with each other. The upper end of the headrest rod extends into the inner cavity of the adjustment mechanism assembly, and a locking plate welding bracket is welded to its top crossbeam. The bottom end of the adjustment mechanism assembly is provided with an arc-shaped clearance hole corresponding to the position of the headrest rod, so that the adjustment mechanism assembly can flip forward relative to the headrest rod. A torsion spring is arranged between the front cover plate and the headrest rod, and the torsion spring has a torque to drive the front cover plate to flip forward. The headrest mechanism also includes a locking plate, an unlocking handle, and an unlocking button. The unlocking handle is hinged to the front cover plate. The front cover plate is equipped with an unlocking handle return spring, the lower end of which is fixedly connected to the middle of the locking plate. The rear end of the locking plate is hinged to the transverse connecting rod, which is fixed to the front cover plate. The front end of the locking plate is inserted into the reserved slot on the locking plate welding bracket to realize the flip-locking of the front cover plate. The unlocking button is set on the side surface of the adjustment mechanism assembly, and its inner end extends into the inner cavity of the adjustment mechanism assembly and corresponds to the position of the unlocking handle. Pressing the unlocking button can push the unlocking handle to rotate, thereby driving the locking plate to rotate upward around the transverse connecting rod, so that the locking plate is disengaged from the slot, thereby realizing the flip-locking of the front cover plate. After unlocking, the adjustment mechanism assembly can automatically fold forward under the action of the torsion spring.

[0006] In the above design: the upper end of the unlocking handle has a "7"-shaped structure, and it is hinged to the front cover plate at the inflection point of the "7"-shaped structure via a front-to-back pivot. The lower end of the unlocking handle extends vertically and is connected to the left end of the "7"-shaped structure. This structural design optimizes the force transmission path. When the unlocking button is pressed and the unlocking handle is rotated, this structure can more effectively convert the force into the power for the locking plate to rotate upward around the transverse connecting rod.

[0007] In the above scheme: the unlock button is located on the right end surface of the adjustment mechanism assembly, and its inner end extends into the inner cavity of the adjustment mechanism assembly, corresponding to the lower end of the "7" shaped structure. Pressing the unlock button can push the lower end of the "7" shaped structure to rotate clockwise around the front-back axis, thereby driving the locking plate to rotate upward around the transverse connecting rod.

[0008] In the above solution, the lower end of the unlocking handle is connected to the locking plate by a screw, which is simple in structure and easy to install.

[0009] In the above solution, the left and right ends of the transverse connecting rod are snapped and fixed to the front cover plate, which is simple in structure and easy to install.

[0010] In the above scheme: the torsion spring is fitted onto the top crossbeam of the headrest rod, one end of which is hooked into the reserved hole on the locking plate welding bracket, and the other end abuts against the front cover plate. The structure is compact and reasonable, and the installation is simple and quick. It can stably provide the torque to drive the front cover plate to flip forward.

[0011] The beneficial effects of this utility model are:

[0012] 1. The front cover can be flipped and unlocked simply by pressing the unlock button. This simple and convenient operation allows users to easily fold the headrest mechanism forward without complicated steps, achieving one-button folding and significantly improving usability. 2. The front cover is locked by engaging a locking plate with a pre-drilled slot on the locking plate's welded bracket. This simple and reliable locking method effectively ensures the stability of the headrest mechanism under normal use and prevents accidental folding. 3. A reset spring is provided between the unlocking handle and the front cover. After unlocking, the unlocking handle automatically resets under the action of the spring, preparing for the next operation and ensuring the continuity and stability of the headrest mechanism's function. 4. An arc-shaped clearance hole is provided at the bottom of the adjustment mechanism assembly corresponding to the headrest rod position, allowing the adjustment mechanism assembly to flip forward relative to the headrest rod. This design satisfies the forward folding function of the headrest mechanism while making reasonable use of space and avoiding structural interference. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the headrest rod.

[0015] Figure 3 This is a schematic diagram showing the locking plate and the locking plate welding bracket engaging.

[0016] Figure 4 This is a schematic diagram of the unlocking handle.

[0017] Figure 5 This is a schematic diagram of the internal structure of this utility model. Detailed Implementation

[0018] like Figure 1 As shown in Figure 5, a forward-folding headrest mechanism mainly consists of a headrest rod 1 and an adjustment mechanism assembly 3. The headrest rod 1 is an n-shaped headrest rod with its upper end bent forward. The adjustment mechanism assembly 3 includes a front cover plate 31 and a rear cover plate 32 that interlock with each other.

[0019] The upper end of the headrest rod 1 extends into the inner cavity of the adjustment mechanism assembly 3, and a locking plate welding bracket 4 is welded to its top crossbeam. An arc-shaped clearance hole 5 is provided at the bottom end of the adjustment mechanism assembly 3 corresponding to the headrest rod 1, allowing the adjustment mechanism assembly 3 to flip forward relative to the headrest rod 1 (when the adjustment mechanism assembly 3 flips until the front end of its arc-shaped clearance hole 5 abuts against the headrest rod 1, the adjustment mechanism assembly 3 reaches its front limit position). A torsion spring 6 is arranged between the front cover plate 31 and the headrest rod 1, and the torsion spring 6 has the torque to drive the front cover plate 31 to flip forward.

[0020] The headrest mechanism also includes a locking plate 7, an unlocking handle 9, and an unlocking button 2. The unlocking handle 9 is hinged to the front cover plate 31, and an unlocking handle return spring 10 is provided between the handle and the front cover plate 31. Its lower end is fixedly connected to the middle of the locking plate 7. The rear end of the locking plate 7 is hinged to the transverse connecting rod 8, which is fixed to the front cover plate 31. The front end of the locking plate 7 is engaged in a reserved slot on the locking plate welding bracket 4 to achieve the flip-locking of the front cover plate 31. The unlocking button 2 is located on the side surface of the adjustment mechanism assembly 3, and its inner end extends into the inner cavity of the adjustment mechanism assembly 3, corresponding to the position of the unlocking handle 9.

[0021] Pressing the unlock button 2 will push the unlock handle 9 to rotate, thereby causing the locking piece 7 to rotate upward around the horizontal connecting rod 8, so that the locking piece 7 is disengaged from the slot, thereby realizing the flip unlock of the front cover 31. After unlocking, the adjustment mechanism assembly 3 can automatically fold forward under the action of the torsion spring 6.

[0022] Ideally, the upper end of the unlocking handle 9 has a "7"-shaped structure, and it is hinged to the front cover plate 31 at the inflection point of the "7"-shaped structure via a front-to-back pivot. The lower end of the unlocking handle 9 extends vertically and is connected to the left end of the "7"-shaped structure. This structural design optimizes the force transmission path. When the unlocking button 2 is pressed and the unlocking handle 9 is rotated, the structure can more effectively convert the force into the power for the locking plate 7 to rotate upward around the transverse connecting rod 8.

[0023] Ideally, the unlocking button 2 is located on the right end surface of the adjusting mechanism assembly 3, with its inner end extending into the inner cavity of the adjusting mechanism assembly 3, corresponding to the lower end of the "7"-shaped structure. Pressing the unlocking button 2 will cause it to push the lower end of the "7"-shaped structure to rotate clockwise around the front-back pivot, thereby causing the locking plate 7 to rotate upward around the transverse connecting rod 8. The unlocking handle 9 is made of rubber and has a certain amount of deformation. Therefore, when the unlocking handle 9 rotates clockwise, its lower end can deform slightly to prevent the locking plate 7 from flipping upward.

[0024] Ideally, the lower end of the unlocking handle 9 is connected to the locking plate 7 by a screw 11, which is simple in structure and easy to install.

[0025] Ideally, the left and right ends of the transverse connecting rod 8 should be snapped and fixed to the front cover plate 31, which is simple in structure and easy to install.

[0026] Ideally, the torsion spring 6 is fitted onto the top crossbeam of the headrest rod 1, with one end hooked into the reserved hole on the locking plate welding bracket 4, and the other end abutting against the front cover plate 31. The structure is compact and reasonable, and the installation is simple and quick. It can stably provide the torque to drive the front cover plate 31 to flip forward.

Claims

1. A forward-folding headrest mechanism, comprising a headrest rod (1) and an adjustment mechanism assembly (3), wherein the headrest rod (1) is an n-shaped headrest rod, and the adjustment mechanism assembly (3) comprises a front cover plate (31) and a rear cover plate (32) that interlock with each other, characterized in that: The upper end of the headrest rod (1) extends into the inner cavity of the adjustment mechanism assembly (3), and a locking plate welding bracket (4) is welded on its top crossbeam. The bottom end of the adjustment mechanism assembly (3) is provided with an arc-shaped clearance hole (5) corresponding to the position of the headrest rod (1), so that the adjustment mechanism assembly (3) can flip forward relative to the headrest rod (1). A torsion spring (6) is provided between the front cover plate (31) and the headrest rod (1). The torsion spring (6) has a torque to drive the front cover plate (31) to flip forward. The headrest mechanism also includes a locking plate (7), an unlocking handle (9), and an unlocking button (2). The unlocking handle (9) is hinged. On the front cover plate (31), and between it and the front cover plate (31), there is an unlocking handle return spring (10), the lower end of which is fixedly connected to the middle of the locking piece (7). The rear end of the locking piece (7) is hinged to the transverse connecting rod (8). The transverse connecting rod (8) is fixed on the front cover plate (31). The front end of the locking piece (7) is inserted into the reserved slot on the locking piece welding bracket (4) to realize the flip locking of the front cover plate (31). The unlocking button (2) is set on the side end surface of the adjusting mechanism assembly (3), and its inner end extends into the inner cavity of the adjusting mechanism assembly (3) and corresponds to the position of the unlocking handle (9). Pressing the unlock button (2) can push the unlock handle (9) to rotate, thereby causing the locking piece (7) to rotate upward around the transverse connecting rod (8), so that the locking piece (7) is removed from the slot, thereby realizing the flip unlock of the front cover (31). After unlocking, the adjustment mechanism assembly (3) can automatically flip forward under the action of the torsion spring (6).

2. The forward-folding headrest mechanism according to claim 1, characterized in that: The upper end of the unlocking handle (9) is a "7" shaped structure, and is hinged to the front cover plate (31) at the inflection point of the "7" shaped structure via a front-to-back rotating shaft. The lower end of the unlocking handle (9) extends vertically and is connected to the left end of the "7" shaped structure.

3. The forward-folding headrest mechanism according to claim 2, characterized in that: The unlock button (2) is located on the right end surface of the adjustment mechanism assembly (3), and its inner end extends into the inner cavity of the adjustment mechanism assembly (3) and corresponds to the lower end of the "7" shaped structure.

4. The forward-folding headrest mechanism according to claim 2, characterized in that: The lower end of the unlocking handle (9) is connected to the locking plate (7) by a screw (11).

5. The forward-folding headrest mechanism according to claim 1, characterized in that: The left and right ends of the transverse connecting rod (8) are snapped and fixed to the front cover plate (31).

6. The forward-folding headrest mechanism according to claim 1, characterized in that: The torsion spring (6) is fitted onto the top crossbeam of the headrest rod (1), with one end hooked into the reserved hole on the locking plate welding bracket (4) and the other end abutting against the front cover plate (31).

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