Folding headrest framework assembly of automobile seat

Abstract

The utility model discloses an automobile seat folding headrest framework assembly which comprises an n-shaped headrest rod, an unlocking inhaul cable, a folding assembly and a headrest cover assembly, the n-shaped headrest rod comprises a vertical rod and a transverse rod, the folding assembly comprises a fixing block, an installation frame, a locking block and an auxiliary block, the fixing block is connected with the installation frame through a folding spring arranged on the transverse rod in a sleeved mode, and the locking block is connected with the auxiliary block. The locking block and the auxiliary block are installed on the installation frame through rotating shafts, the outline of the lower portion of the locking block is matched with the outline of the upper portion of the fixing block in a concave-convex mode, the auxiliary block is connected with one end of the unlocking inhaul cable, and the rotating shaft corresponding to the auxiliary block is sleeved with an auxiliary locking spring. The headrest locking device has the advantages that the headrest is stable, the requirement for machining precision is low, the machining cost is low, the structures are linked with one another, the concept is novel, folding operation is easy and convenient, and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile seat headrest folding, and particularly relates to an automobile seat folding headrest framework assembly. BACKGROUND

[0002] At present, only the tooth engagement locking of the locking block and the fixed base can avoid the headrest shaking, and thus the complete fillet joint is required, the machining precision is high, only the single tooth engagement locking can be used, the connecting structure is weak, and the components are abraded to generate gaps in long-term use, so that the position of the headrest is not firm when being unlocked. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing an automobile seat folding headrest framework assembly, the locking structure is stable, the headrest is firm when being unlocked, and the problem that only the single tooth engagement locking can be used, the connecting structure is weak, and the components are abraded to generate gaps in long-term use, so that the position of the headrest is not firm when being unlocked is solved.

[0004] Therefore, the utility model adopts the technical scheme: an automobile seat folding headrest framework assembly, including "n" type headrest rod, unlocking cable, folding assembly installed on the "n" type headrest rod and headrest cover assembly installed on the folding assembly, the "n" type headrest rod includes left and right symmetrical vertical rods and horizontal rod located at the top and connecting the left and right vertical rods, the folding assembly includes fixed block fixed on the horizontal rod, mounting frame rotatable sleeved on the horizontal rod, locking block located at the middle part of the mounting frame and auxiliary block located at the upper part of the mounting frame, the fixed block is connected with the mounting frame through the folding spring sleeved on the horizontal rod, so that the folding spring can provide the elastic force of pushing the mounting frame forward and turning over reversely in the unlocked state, the locking block and the auxiliary block are all installed on the mounting frame through the rotating shaft, the lower profile of the locking block is matched with the upper profile of the fixed block, the auxiliary block is connected with one end of the unlocking cable, the rotating shaft of the auxiliary block is sleeved with the auxiliary locking spring, one end of the auxiliary locking spring is fixed on the mounting frame, and the other end pushes the lower part of the auxiliary block and abuts against the upper part of the locking block, so that the locking block and the fixed block are completely matched with the contact profile and are locked, when the unlocking cable is pulled and the auxiliary block is driven away from the locking block, the folding spring can automatically push the mounting frame forward and turn over reversely, so as to drive the folding of the headrest cover assembly.

[0005] As the preferred of the above scheme, the headrest cover assembly includes headrest cover mounting plate, front cover, mounting pressing block and rear cover, the headrest cover mounting plate is fixedly installed on the front side of the mounting frame, the upper part of the front cover is installed on the headrest cover mounting plate, and the lower part is clamped and hit by the left and right symmetrical mounting pressing blocks and is rotatably installed on the horizontal rod, the rear cover is provided with the recess for arranging the folding assembly, the upper part of the rear cover is installed on the front cover, and the lower part is installed on the mounting pressing block, the headrest cover assembly is firmly installed, can rotate synchronously with the folding assembly, and the structure design is reasonable.

[0006] Further preferably, the auxiliary block is in the shape of a "7" as a whole, the upper part of the auxiliary block is provided with a cable mounting hole connected with the end of the unlocking cable, and the lower part abuts against the locking block, the locking block is provided with a protrusion matched with the notch of the fixing block, when the mounting frame is flipped forward, the locking block is rotated clockwise along the contour of the fixing block to be unlocked, the front cover is provided with an arc-shaped mounting frame for arranging the unlocking cable, one end of the unlocking cable is mounted on the cable mounting hole, and the other end extends downward through the arc-shaped mounting frame and the inner cavity of the vertical rod to be exposed, the structure is reasonable in design, the cable harness is smooth and not messy, and the vertical rod is exposed to facilitate manual pulling.

[0007] Further preferably, the mounting frame is in the shape of a "U"-shaped groove as a whole, and the fixing block, the locking block and the auxiliary block are located between the side plates of the mounting frame, and the rear end of the mounting frame is provided with a reinforcing cross plate, so that the structure is stable in installation.

[0008] Further preferably, the top end of the vertical rod is bent forward, the left and right ends of the horizontal rod are provided with planes welded with the vertical rod, and the top end of the vertical rod is provided with a gap for the unlocking cable to pass through, so that the unlocking cable is prevented from being broken due to the bending angle.

[0009] The headrest has the advantages that:

[0010] (1) Compared with the single tooth engagement locking structure, the connection structure is weak, the locking block and the fixing block are engaged up and down at the same time, the auxiliary block presses the locking block from above, the locking block is limited up and down, the stability of the headrest is fully guaranteed, the headrest shaking caused by unstable installation of components is effectively avoided, the machining precision requirement is low, and the machining cost is reduced.

[0011] (2) The fixing block and the mounting frame are connected through the folding spring sleeved on the horizontal rod, the folding spring is always in a state of pushing the mounting frame to flip forward, the auxiliary locking spring is connected with the mounting frame and the auxiliary block, therefore, the default state is always abutting against the upper part of the locking block, the folding spring and the auxiliary locking spring complement each other, when the unlocking cable is pulled to drive the auxiliary block away from the locking block, the folding spring can automatically push the mounting frame to flip forward in reverse, the mounting frame drives the locking block to rotate clockwise along the contour of the fixing block, so that the headrest cover assembly is folded and unlocked, and the headrest cover assembly is automatically folded forward without manual folding, but when relocking, the headrest cover assembly needs to be flipped manually to make the mounting frame flip backward, the mounting frame drives the locking block to rotate counterclockwise along the contour of the fixing block until the protrusion is matched with the notch of the fixing block, and the lower end of the auxiliary block falls back to abut against the locking block to realize relocking, the structure is interlocked, the design is ingenious, the structure is novel, and the folding operation is simple and convenient.

[0012] The headrest has the advantages that the headrest is stable, the machining precision requirement is low, the machining cost is low, the structure is interlocked, the structure is novel, and the folding operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model.

[0014] Figure 2 It is Figure 1 the exploded view of parts.

[0015] Figure 3 It is a structural schematic view of the automobile seat folding headrest framework assembly without showing the rear cover.

[0016] Figure 4 It is a structural schematic view of the folding assembly installed on the "n" type headrest rod.

[0017] Figure 5 It is a structural schematic view of the fixing block, locking block and auxiliary block installed on the cross rod.

[0018] Figure 6 The left drawing is a structural schematic view of the headrest framework assembly without unlocking folding, Figure 6 and the right drawing is a structural schematic view of the headrest framework assembly unlocking folding. DETAILED DESCRIPTION

[0019] The utility model will be further described below by combining with the drawings:

[0020] Combining Figure 1 — Figure 6 with the drawings, an automobile seat folding headrest framework assembly is composed of an "n" type headrest rod 1, an unlocking cable 4, a folding assembly 2 installed on the "n" type headrest rod 1 and a headrest cover assembly 3 installed on the folding assembly 2.

[0021] The "n" type headrest rod 1 is composed of left and right symmetrical vertical rods 11 and a cross rod 12 located at the top and connecting the left and right vertical rods 11.

[0022] The vertical rod 11 is bent forward at the top end.

[0023] The cross rod 12 is provided with a plane 121 welded with the vertical rod 11 at the left and right ends.

[0024] The vertical rod 11 is provided with a notch for the unlocking cable 4 to pass through at the top end.

[0025] The folding assembly 2 is composed of a fixing block 21 fixed on the cross rod 12, a mounting frame 22 rotatably sleeved on the cross rod 12, a locking block 23 located at the middle part of the mounting frame 22 and an auxiliary block 24 located at the upper part of the mounting frame 22.

[0026] The mounting frame 22 is in the form of a "U" type groove structure as a whole.

[0027] The fixed block 21, the locking block 23 and the auxiliary block 24 are located between the side plates of the mounting frame 22.

[0028] The mounting frame 22 is provided with a reinforcing transverse plate 221 at the rear end.

[0029] The fixed block 21 is connected with the mounting frame 22 through the folding spring 25 sleeved on the horizontal rod 12, so that the folding spring 25 can provide a reverse pushing force to the mounting frame 22 to turn forward in the unlocked state.

[0030] The locking block 23 and the auxiliary block 24 are both installed on the mounting frame 22 through rotating shafts.

[0031] The lower profile of the locking block 23 is matched with the upper profile of the fixed block 21.

[0032] The locking block 23 is provided with a protrusion matched with the notch of the fixed block 21.

[0033] The auxiliary block 24 has a whole "7" shape structure.

[0034] The auxiliary block 24 is provided with a cable installation hole connected with the end of the unlocking cable 4 at the upper part, and is abutted against the locking block 23 at the lower part.

[0035] The auxiliary block 24 is connected with one end of the unlocking cable 4, and the rotating shaft corresponding to the auxiliary block 24 is sleeved with an auxiliary locking spring 241.

[0036] One end of the auxiliary locking spring 241 is fixed on the mounting frame 22, and the other end pushes the lower part of the auxiliary block 24 to abut against the upper part of the locking block 23, so that the locking block 23 is completely matched with the contact profile of the fixed block 21 to realize locking.

[0037] When the mounting frame 22 turns forward, the locking block 23 is rotated clockwise along the profile of the fixed block 21 to be unlocked.

[0038] When the unlocking cable 4 is pulled to drive the auxiliary block 24 away from the locking block 23, the folding spring 25 can automatically push the mounting frame 22 to turn forward in the reverse direction, so as to drive the headrest cover assembly 3 to be folded.

[0039] The headrest cover assembly 3 is composed of a headrest cover mounting plate 31, a front cover 32, mounting pressing blocks 33 and a rear cover 34.

[0040] The headrest cover mounting plate 31 is fixedly installed on the front side of the mounting frame 22.

[0041] The front cover 32 is installed on the headrest cover mounting plate 31 at the upper part, and is rotatably installed on the horizontal rod 12 through the left and right symmetrical mounting pressing blocks 33 at the lower part.

[0042] The rear cover 34 is provided with a recess for arranging the folding assembly 2.

[0043] The upper part of the rear cover 34 is mounted on the front cover 32, and the lower part is mounted on the mounting block 33.

[0044] The front cover 32 is provided with an arc-shaped mounting rack 321 for accommodating the unlocking cable 4.

[0045] One end of the unlocking cable 4 is mounted on the cable mounting hole, and the other end extends downward through the arc-shaped mounting rack 321 and passes through the inner cavity of the vertical rod 11 to be exposed.

[0046] When the unlocking cable 4 is pulled to drive the auxiliary block 24 away from the locking block 23, the folding spring 25 can automatically reverse to push the mounting rack 22 to flip forward, and the mounting rack 22 drives the locking block 23 to rotate clockwise along the contour of the fixed block 21, thereby driving the headrest cover assembly 3 to fold and unlock, and the headrest cover assembly 3 is automatically folded forward without manual folding.

[0047] When relocking, the headrest cover assembly 3 needs to be manually flipped to flip the mounting rack 22 backward, and the mounting rack 22 drives the locking block 23 to rotate counterclockwise along the contour of the fixed block 21 to the convex block and the notch of the fixed block 21, and the lower end of the auxiliary block 24 falls back to abut against the locking block 23 to achieve relocking.

Claims

1. A folding headrest frame assembly for a car seat, characterized in that: The device includes an "n"-shaped headrest rod (1), an unlocking cable (4), a folding assembly (2) mounted on the "n"-shaped headrest rod (1), and a headrest cover assembly (3) mounted on the folding assembly (2). The "n"-shaped headrest rod (1) includes two symmetrical vertical rods (11) and a horizontal rod (12) at the top connecting the two vertical rods (11). The folding assembly (2) includes a fixing block (21) fixed to the horizontal rod (12), a mounting bracket (22) rotatably mounted on the horizontal rod (12), a locking block (23) located in the middle of the mounting bracket (22), and an auxiliary block (24) located on the upper part of the mounting bracket (22). The fixing block (21) and the mounting bracket (22) are connected by a folding spring (25) mounted on the horizontal rod (12), so that the folding spring (25) can provide a reverse push to the mounting bracket (22) in the unlocked state. The locking block (23) and the auxiliary block (24) are both mounted on the mounting frame (22) via a pivot. The lower contour of the locking block (23) matches the upper contour of the fixed block (21). The auxiliary block (24) is connected to one end of the unlocking cable (4). The pivot corresponding to the auxiliary block (24) is fitted with an auxiliary locking spring (241). One end of the auxiliary locking spring (241) is fixed on the mounting frame (22), and the other end pushes the lower part of the auxiliary block (24) against the upper part of the locking block (23), so that the contact surface contours of the locking block (23) and the fixed block (21) are completely matched to achieve locking. When the unlocking cable (4) is pulled to move the auxiliary block (24) away from the locking block (23), the folding spring (25) can automatically push the mounting frame (22) forward to flip, thereby driving the headrest cover assembly (3) to fold.

2. The folding headrest frame assembly for a car seat according to claim 1, characterized in that: The headrest cover assembly (3) includes a headrest cover mounting plate (31), a front cover (32), a mounting block (33), and a rear cover (34). The headrest cover mounting plate (31) is fixedly mounted on the front side of the mounting frame (22). The upper part of the front cover (32) is mounted on the headrest cover mounting plate (31), and the lower part is rotatably mounted on the crossbar (12) by clamping the mounting blocks (33) which are symmetrically positioned on the left and right. The rear cover (34) has a groove for arranging the folding assembly (2). The upper part of the rear cover (34) is mounted on the front cover (32), and the lower part is mounted on the mounting block (33).

3. The folding headrest frame assembly for a car seat according to claim 2, characterized in that: The auxiliary block (24) is in the shape of a "7". The upper part of the auxiliary block (24) is provided with a cable mounting hole that connects to the end of the unlocking cable (4), and the lower part abuts against the locking block (23). The locking block (23) is provided with a protrusion that fits into the recess of the fixed block (21). When the mounting frame (22) is flipped forward, it drives the locking block (23) to rotate clockwise along the outline of the fixed block (21) to unlock. The front cover (32) is provided with an arc-shaped mounting frame (321) for placing the unlocking cable (4). One end of the unlocking cable (4) is installed on the cable mounting hole, and the other end extends downward through the arc-shaped mounting frame (321) and passes through the inner cavity of the vertical rod (11) to be exposed.

4. The folding headrest frame assembly for a car seat according to claim 1, characterized in that: The mounting bracket (22) has an overall "U" shaped groove structure. The fixing block (21), locking block (23), and auxiliary block (24) are all located between the side plates of the mounting bracket (22). The rear end of the mounting bracket (22) is provided with a reinforcing cross plate (221).

5. The folding headrest frame assembly for a car seat according to claim 3, characterized in that: The top of the vertical rod (11) is bent forward, and the left and right ends of the horizontal rod (12) are provided with a plane (121) welded to the vertical rod (11). The top of the vertical rod (11) is provided with a notch for the unlocking cable (4) to pass through.

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