Automatic folding type automobile headrest structure and automobile

Abstract

The utility model relates to the technical field of automobile accessories, and provides an automatic folding type automobile headrest structure and an automobile. The headrest main body is rotationally arranged on the supporting piece, and the spring bolt is rotationally arranged in the headrest main body; the unlocking piece is provided with an unlocking sliding block and an inhaul cable. Compared with the prior art, the automobile seat headrest has the advantages that the unlocking piece is arranged in the mounting cavity so as to ensure the overall attractiveness of the headrest main body, the inhaul cable which drives the unlocking sliding block to move extends into the automobile seat, so that a seat backrest drives the inhaul cable to move in the process of being put down, and then the spring bolt is pushed to unlock the locking block; the folding function of the headrest body is finally achieved, an external unlocking button is omitted through the headrest structure, and passengers are effectively prevented from being collided and damaged in the riding process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to an automatic folding automobile headrest structure and an automobile. Background Art

[0002] The car headrest is a driving comfort configuration and safety protection product. When a vehicle rear-ends, the human body will fall backwards due to inertia. At this time, the pressure of the vehicle's acceleration or deceleration is concentrated on the human body's fragile neck and head, and the headrest plays a buffering role to protect the human head.

[0003] Automobile headrests are generally divided into foldable headrests and non-foldable headrests. In the current existing seat headrest folding structure, a raised unlocking button is often set on one side of the headrest. Only after the user presses the unlocking button can the unlocking part in the headrest body complete the unlocking task, thereby facilitating the folding of the headrest body relative to the seat back. However, this structure often makes the folding of the headrest body and the folding of the seat back unrelated to each other, so the user needs to operate frequently in steps, which is not conducive to customer use. At the same time, the raised unlocking button not only affects the overall aesthetics of the seat, but also easily causes bumps and damages to passengers. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an automatic folding automobile headrest structure in view of the current status of the prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: to propose an automatic folding automobile headrest structure, including: a support member having a headrest support rod for connecting with an automobile seat;

[0006] A headrest body, which is rotatably arranged on the support member and has a maximum unfolded state and a folded state on the support member, a mounting cavity is formed in the headrest body, a locking tongue is rotatably arranged in the mounting cavity, the locking tongue has a first rotation direction in the mounting cavity and a second rotation direction opposite to the first rotation direction, the first rotation direction is the same as the direction when the headrest body rotates from the folded state to the maximum unfolded state, and a first arc surface and a second arc surface are arranged on the locking tongue;

[0007] a locking block, which is fixed on the support member, and is provided with a straight surface that movably abuts against the first curved surface and a third curved surface that movably abuts against the second curved surface, the first curved surface and the straight surface are movably tangent, and when the first curved surface and the straight surface are tangent and the second curved surface and the third curved surface abut, the locking tongue is allowed to rotate along the first rotation direction and the locking tongue is prevented from rotating along the second rotation direction, thereby preventing the headrest body from switching from the maximum expanded state to the folded state;

[0008] An unlocking member comprises an unlocking slider movably arranged in the mounting cavity and a cable for driving the unlocking slider to move in the mounting cavity, the unlocking slider movably abuts against the locking tongue and is used to drive the locking tongue to rotate in the mounting cavity, one end of the cable is connected to the unlocking slider, and the other end of the cable passes through the headrest support rod and extends into the car seat, and the cable can drive the locking tongue to disengage from the locking block through the unlocking slider when the backrest of the car seat is folded relative to the car seat.

[0009] In the above-mentioned automatic folding automobile headrest structure, the unlocking member includes:

[0010] A protective cover, a fixing seat is arranged on the side wall of the installation cavity, one end of the protective cover passes through the headrest support rod and is clamped in the fixing seat, and the cable is arranged in the protective cover;

[0011] An elastic member, one end of which is connected to the side wall of the installation cavity, and the other end of which is connected to the unlocking slider, is used to drive the unlocking slider to reset.

[0012] In the above-mentioned automatic folding automobile headrest structure, a fixed shaft is arranged on the side wall of the installation cavity, and the locking tongue is rotatably sleeved on the fixed shaft.

[0013] In the above-mentioned automatic folding automobile headrest structure, the locking tongue includes an unlocking block and a rotating block, and the rotating block is made of plastic and is integrally formed with the unlocking block through an injection molding process.

[0014] In the above-mentioned automatic folding automobile headrest structure, the unlocking block and the locking block are both sandblasted.

[0015] In the above-mentioned automatic folding automobile headrest structure, the support member includes:

[0016] A connecting rod, one end of the headrest support rod is fixed on the connecting rod, and the locking block is fixed on the connecting rod;

[0017] A connecting piece, which is detachably connected to the side wall of the installation cavity and sleeved on the outer side wall of the connecting rod;

[0018] A torsion spring is sleeved on the connecting rod, one pin of the torsion spring is inserted into the locking block, the other pin of the torsion spring is pressed against the connecting piece, and the torsion spring is in a compressed state when the headrest body is in the maximum expanded state, and the torsion spring can restore elastic deformation when the headrest body is switched from the maximum expanded state to the folded state.

[0019] In the above-mentioned automatic folding automobile headrest structure, a waist-shaped hole is provided on the locking block to provide positioning for the locking block when the locking block is processed.

[0020] The utility model solves the above technical problem and further provides a car, comprising the above automatic folding car headrest structure.

[0021] Compared with the prior art, the advantage of the present invention is that the unlocking piece is placed in the installation cavity to ensure the overall aesthetics of the headrest body, and the cable that drives the unlocking slider to move is extended into the car seat, so that the cable can be moved when the seat back is folded down, and then the lock tongue is pushed to unlock the locking block, and finally the folding function of the headrest body is realized. This headrest structure not only eliminates the external unlocking button, effectively preventing passengers from being damaged by bumps during riding, but also can realize the unlocking of the headrest and complete the automatic folding function when the seat back is folded down. The operation is convenient and fast, with a high degree of automation, and it is also conducive to enhancing the comfort of riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of this scheme;

[0023] Figure 2 yes Figure 1 A top view of the

[0024] Figure 3 When the headrest body 3 is in the maximum exhibition position, Figure 2 Sectional view along AA direction;

[0025] Figure 4 When the lock tongue and the locking block are disengaged, Figure 2 Sectional view along AA direction;

[0026] Figure 5 It is a partial cross-sectional view of this scheme;

[0027] Figure 6 It is a three-dimensional picture of the deadbolt;

[0028] Figure 7 It is a partial cross-sectional view of the lock tongue and the locking member when they are engaged.

[0029] In the figure, 1. support member; 2. headrest support rod; 3. headrest body; 4. locking tongue; 5. first arc surface; 6. second arc surface; 7. locking block; 8. straight surface; 9. third arc surface; 10. unlocking member; 11. unlocking slider; 12. cable; 13. air avoidance groove; 14. protective cover; 15. fixing seat; 16. elastic member; 17. fixed shaft; 18. unlocking block; 19. rotating block; 20. connecting rod; 21. connecting member; 22. torsion spring; 23. waist-shaped hole. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0031] like Figures 1 to 7 As shown, in this solution, the specific structure of the automobile headrest structure and its application in the automobile are mainly described in detail.

[0032] An automatic folding automobile headrest structure comprises: a support member 1, which has a headrest support rod 2 for connecting to an automobile seat; a headrest body 3, which is rotatably arranged on the support member 1 and has a maximum unfolded state and a folded state on the support member 1, a mounting cavity is formed in the headrest body 3, a locking tongue 4 is rotatably arranged in the mounting cavity, the locking tongue 4 has a first rotation direction in the mounting cavity and a second rotation direction opposite to the first rotation direction, the first rotation direction is the same as the direction when the headrest body 3 rotates from the folded state to the maximum unfolded state, the locking tongue 4 is provided with a first arc surface 5 and a second arc surface 6; a locking block 7, which is fixedly arranged on the support member 1, the locking block 7 is provided with a straight surface 8 that movably abuts against the first arc surface 5 and a third arc surface 9 that movably abuts against the second arc surface 6, the first arc surface 5 and the straight surface 8 movably abut When the first curved surface 5 is tangent to the straight surface 8 and the second curved surface 6 is abutted against the third curved surface 9, the locking tongue 4 is allowed to rotate in the first rotation direction and the locking tongue 4 is prevented from rotating in the second rotation direction, thereby preventing the headrest body 3 from switching from the maximum expanded state to the folded state; an unlocking member 10, which has an unlocking slider 11 movably arranged in the mounting cavity and a cable 12 for driving the unlocking slider 11 to move in the mounting cavity, the unlocking slider 11 movably abuts against the locking tongue 4 and is used to drive the locking tongue 4 to rotate in the mounting cavity, one end of the cable 12 is connected to the unlocking slider 11, and the other end of the cable 12 passes through the headrest support rod 2 and extends into the car seat, the cable 12 can be driven by the unlocking slider 11 to disengage the locking tongue 4 from the locking block 7 due to the backrest of the car seat being folded relative to the car seat.

[0033] The cable 12 in the unlocking member 10 is connected to the adjuster in the seat back (not shown in the figure), that is, when the seat back is folded down, the seat back can drive the unlocking slider 11 to move in the installation cavity by pulling the cable 12. When the unlocking slider 11 moves, it drives the locking tongue 4 to rotate along the first rotation direction, so that the first arc surface 5 and the straight surface 8 are out of the tangent state, and the locking tongue 4 and the locking block 7 are out of the clamping state, so that the headrest body 3 can finally switch from the maximum expanded state to the folded state. This design directly omits the unlocking button on the headrest body 3, thereby improving the overall aesthetics.

[0034] The headrest body 3 is in use, and the locking tongue 4 and the locking block 7 inside thereof are as follows: Figure 3The first curved surface 5 is tangent to the straight surface 8, and the second curved surface 6 is abutted against the third curved surface 9, thereby ensuring the stability between the headrest body 3 and the seat back, and the tangency between the first curved surface 5 and the straight surface 8 can prevent the locking tongue 4 from moving along the Figure 3 The counterclockwise movement ensures that when the headrest body 3 is in the maximum expanded state, no relative displacement occurs between the headrest body 3 and the support member 1 before unlocking. In the process of the cable 12 pushing the unlocking slider 11 to move, the lock tongue 4 can be pushed to rotate along the first rotation direction, so that the lock tongue 4 and the locking block 7 are as shown in FIG. Figure 4 In the state shown, the headrest body 3 has been unlocked, and the folding function of the headrest body 3 relative to the seat back can be realized. The headrest structure does not require an external unlocking button to unlock, which effectively avoids the passenger from being damaged by the external unlocking button and improves safety. At the same time, when the seat back is folded down, the unlocking member 10 can be linked to complete the unlocking and folding function of the headrest body 3. It has a high degree of automation, reduces the user's operating steps, and is conducive to improving the customer's comfort during use.

[0035] Furthermore, the unlocking member 10 includes: a protective cover 14, a fixing seat 15 is arranged on the side wall of the installation cavity, one end of the protective cover 14 passes through the headrest support rod 2 and is clamped in the fixing seat 15, and the cable 12 is arranged in the protective cover 14 to provide protection for the cable 12; an elastic member 16, one end of which is connected to the side wall of the installation cavity, and the other end is connected to the unlocking slider 11, so as to drive the unlocking slider 11 to reset, and the elastic member 16 is preferably a spring.

[0036] Furthermore, a fixed shaft 17 is provided on the side wall of the installation cavity, and the lock tongue 4 is rotatably sleeved on the fixed shaft 17, and the fixed shaft 17 is used to fix the lock tongue 4 in the installation cavity.

[0037] Furthermore, the locking tongue 4 includes an unlocking block 18 and a rotating block 19 . The rotating block 19 is made of plastic and is integrally formed with the unlocking block 18 through an injection molding process.

[0038] Preferably, the unlocking block 18 and the locking block 7 are both sandblasted.

[0039] The sandblasting process is used to increase the friction between the unlocking block 18 and the locking block 7, so that the headrest body 3 is less likely to shake when the headrest body 3 is in the maximum unfolded state.

[0040] Furthermore, the support member 1 includes: a connecting rod 20, one end of the headrest support rod 2 is fixed on the connecting rod 20, and the locking block 7 is fixed on the connecting rod 20; a connecting member 21, which is detachably connected to the side wall of the installation cavity and is sleeved on the outer wall of the connecting rod 20; a torsion spring 22, which is sleeved on the connecting rod 20, one pin of the torsion spring 22 is inserted on the locking block 7, and the other pin of the torsion spring 22 is pressed against the connecting member 21, and the torsion spring 22 is in a compressed state when the headrest body 3 is in the maximum expanded state, and the torsion spring 22 can restore elastic deformation due to the headrest body 3 switching from the maximum expanded state to the folded state.

[0041] When the cable 12 is pulled to drive the unlocking slide block 11 to move in the installation cavity, the unlocking slide block 11 pushes the lock tongue 4 according to Figure 3 Turn clockwise to Figure 4 In the state shown, the locking tongue 4 is disengaged from the locking block 7, and driven by the torsion spring 22, the headrest body 3 is rotated relative to the support member 1. Figure 4 counterclockwise until it switches to the folded state.

[0042] Preferably, a waist-shaped hole 23 is provided on the locking block 7 to provide positioning for the locking block 7 when the locking block 7 is processed, thereby improving the processing accuracy of the locking block 7.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, in the present invention, the descriptions of "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the scope defined by the spirit of the present invention.

Claims

1. An automatic folding automobile headrest structure, characterized in that: include: a support member having a headrest support rod for connection to a vehicle seat; A headrest body, which is rotatably arranged on the support member and has a maximum unfolded state and a folded state on the support member, a mounting cavity is formed in the headrest body, a locking tongue is rotatably arranged in the mounting cavity, the locking tongue has a first rotation direction in the mounting cavity and a second rotation direction opposite to the first rotation direction, the first rotation direction is the same as the direction when the headrest body rotates from the folded state to the maximum unfolded state, and a first arc surface and a second arc surface are arranged on the locking tongue; a locking block, which is fixed on the support member, and is provided with a straight surface that movably abuts against the first curved surface and a third curved surface that movably abuts against the second curved surface, the first curved surface and the straight surface are movably tangent, and when the first curved surface and the straight surface are tangent and the second curved surface and the third curved surface abut, the locking tongue is allowed to rotate along the first rotation direction and the locking tongue is prevented from rotating along the second rotation direction, thereby preventing the headrest body from switching from the maximum expanded state to the folded state; An unlocking member comprises an unlocking slider movably arranged in the mounting cavity and a cable for driving the unlocking slider to move in the mounting cavity, the unlocking slider movably abuts against the locking tongue and is used to drive the locking tongue to rotate in the mounting cavity, one end of the cable is connected to the unlocking slider, and the other end of the cable passes through the headrest support rod and extends into the car seat, and the cable can drive the locking tongue to disengage from the locking block through the unlocking slider when the backrest of the car seat is folded relative to the car seat.

2. The automatic folding automobile headrest structure according to claim 1, characterized in that: The unlocking member comprises: A protective cover, a fixing seat is arranged on the side wall of the installation cavity, one end of the protective cover passes through the headrest support rod and is clamped in the fixing seat, and the cable is arranged in the protective cover; An elastic member, one end of which is connected to the side wall of the installation cavity, and the other end of which is connected to the unlocking slider, is used to drive the unlocking slider to reset.

3. The automatic folding automobile headrest structure according to claim 1, characterized in that: A fixed shaft is arranged on the side wall of the installation cavity, and the locking tongue is rotatably sleeved on the fixed shaft.

4. The automatic folding automobile headrest structure according to claim 1, characterized in that: The locking tongue comprises an unlocking block and a rotating block. The rotating block is made of plastic and is integrally formed with the unlocking block through an injection molding process.

5. The automatic folding automobile headrest structure as claimed in claim 4, characterized in that: The unlocking block and the locking block are both sandblasted.

6. The automatic folding automobile headrest structure according to claim 1, characterized in that: The support member comprises: A connecting rod, one end of the headrest support rod is fixed on the connecting rod, and the locking block is fixed on the connecting rod; A connecting piece, which is detachably connected to the side wall of the installation cavity and sleeved on the outer side wall of the connecting rod; A torsion spring is sleeved on the connecting rod, one pin of the torsion spring is inserted into the locking block, the other pin of the torsion spring is pressed against the connecting piece, and the torsion spring is in a compressed state when the headrest body is in the maximum expanded state, and the torsion spring can restore elastic deformation when the headrest body is switched from the maximum expanded state to the folded state.

7. The automatic folding automobile headrest structure according to claim 1, characterized in that: The locking block is provided with a waist-shaped hole for providing positioning for the locking block when the locking block is processed.

8. A car, characterized in that: It comprises an automatically foldable automobile headrest structure as described in any one of claims 1 to 7.

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