Vehicle seat headrest

Abstract

The utility model belongs to the field of headrests, and provides a vehicle seat headrest which is characterized in that a guiding part parallel to the rotating direction of a front support is formed on a traction piece, and at least two locking grooves are distributed in the guiding part; the locking pin is connected to the front support and movably clamped in the locking groove so that the front support can be limited to the folding position or the unfolding position. Compared with the prior art, the utility model has the advantages that the locking pin is matched with the locking groove on the traction piece, so that the front support is firmly locked after being adjusted to a required position (whether folded or unfolded), the whole structure is simple, the whole thickness of the headrest is thinner, the space in a vehicle is saved, and the use is convenient. Compared with a hard locking structure of a ratchet wheel and a pawl, according to the headrest structure in the scheme, the position can be adjusted only by applying proper pressure to the front support by a user, the test requirement of a headrest whiplash test is met, and the use safety and stability are improved to a great extent.

Description

Technical Field

[0001] This utility model belongs to the field of headrests, specifically relating to a vehicle seat headrest. Background Technology

[0002] With the booming development of the automotive industry, people have put forward higher requirements for the comfort of car seats. As a special product among car seats, car seat headrests not only need to have the safety performance of protecting the human head, but also need to have a high degree of comfort.

[0003] Currently, six-way adjustable headrests are not common in the global car seat market and are only found in high-end car seats. The existing six-way adjustable manual car seat headrests are complex in structure and expensive, making them unsuitable for widespread use in ordinary cars. For example, Chinese patent CN215097180U discloses a vehicle seat headrest, which includes a support frame connected to a headrest rod and a front support. The front support is pivotally connected to the support frame and also includes a ratchet, a meshing part, a swing arm, and an elastic element. The ratchet is fixedly mounted on the front support to follow the pivoting of the front support, and a first pushing part is provided on the ratchet. The meshing part is pivotally mounted on the support frame and has a meshing movement that engages with the ratchet due to the drive of elastic force. A protrusion is fixed on the meshing part. The swing arm is pivotally mounted on the ratchet and has a protrusion. When the ratchet pivots from the retracted position to the extended position, the first pushing part contacts the swing arm, and when the front support continues to move, the first pushing part pushes the swing arm to swing, so that the protrusion contacts and presses down on the protrusion. The elastic element connects the front support and the support frame.

[0004] As can be seen, in order to achieve the front support's forward and backward flipping action relative to the support frame, a large number of structural components such as ratchet, meshing, swing arm, and elastic element are used. This not only increases the manufacturing cost of the entire seat headrest and is not conducive to subsequent maintenance, but also makes the seat headrest relatively thick, which is not conducive to the use of interior space and seriously affects the user's experience. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a vehicle seat headrest with simple overall structure, low manufacturing cost, thin headrest thickness, and improved comfort.

[0006] The technical solution adopted by this utility model to solve its technical problem is to propose a vehicle seat headrest, including a support frame connected to a headrest rod and a front support, wherein the front support is pivotally connected to the support frame to operate the front support to pivot between a retracted position and an extended position, and further includes a traction member and a locking pin, wherein:

[0007] The traction member has a guide portion arranged parallel to the rotation direction of the front support, and at least two locking grooves are distributed on the guide portion; the locking pin is connected to the front support and is movably engaged in the locking groove to restrict the front support to the retracted position or the unfolded position;

[0008] When the locking pin pivots relative to the support frame with the front support, the guide portion can elastically deform due to the compressive force of the locking pin, allowing the locking pin to cross the locking groove. When the locking pin engages with the locking groove, the guide portion elastically returns to its original position, thus restricting the movement of the front support.

[0009] In the aforementioned vehicle seat headrest, the traction member is further provided with an extension block located at the end of the guide portion away from the support frame. A limiting surface is formed on the extension block, and the locking groove is arc-shaped. The limiting surface is tangent to the locking groove.

[0010] In one of the vehicle seat headrests described above, a rubber pad is also provided inside the traction component, and the guide portion is attached to the rubber pad.

[0011] In the aforementioned vehicle seat headrest, a guide arc surface is formed on the guide portion, the guide arc surface is arranged parallel to the direction of the front support during pivoting, and the locking groove is provided on the guide arc surface.

[0012] In one of the vehicle seat headrests described above, the rubber pad and the traction component are made using two-color injection molding.

[0013] In one of the vehicle seat headrests described above, the traction member is further provided with clearance grooves located on both sides of the rubber pad and the guide portion. The clearance grooves are used to reduce the contact area between the locking pin and the traction member.

[0014] In one of the vehicle seat headrests described above, a weight-reducing groove is provided on the side of the traction member away from the locking pin, the weight-reducing groove being used to reduce the overall weight of the traction member.

[0015] In the aforementioned vehicle seat headrest, a mounting groove is formed within the support frame, and a plurality of protrusions are symmetrically distributed on the inner wall of the mounting groove. A mounting block is formed on the traction member, and the mounting block can be moved to abut against the protrusions when inserted into the mounting groove, and the mounting block can be restricted to the support frame by fasteners.

[0016] In the aforementioned vehicle seat headrest, the front support includes a front support body and ear wings distributed on both sides thereof, the front support body being pivotally connected to the support frame; both ear wings can be connected to both sides of the front support body via damping hinges.

[0017] In the aforementioned vehicle seat headrest, the headrest rod has several slots distributed in the axial direction, and the support frame is provided with an unlocking button, an unlocking mechanism, and an elastic element.

[0018] The unlocking mechanism includes an unlocking body and a retaining spring mounted on the unlocking body;

[0019] The unlocking body slides along an axis perpendicular to the headrest bar and remains on the support frame, while the unlocking button is movably pressed against the unlocking body;

[0020] The retaining spring is circumferentially arranged around the headrest rod so that it can be selectively inserted into the slot in a natural state. The fixed end of the retaining spring is fixed to the support frame, and the movable end of the retaining spring extends to the outside of the headrest rod and is connected to the unlocking body.

[0021] The two ends of the elastic element are respectively connected to the unlocking body and the support frame, so as to drive the unlocking body to push the unlocking button to reset, so that the snap ring can be engaged in the slot.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The vehicle seat headrest of this utility model uses a locking pin and a locking groove on the traction component to ensure that the front support is firmly locked after being adjusted to the required position (whether it is folded up or unfolded). The overall structure is simple, and the overall thickness of the headrest is relatively thin, saving space in the vehicle. Compared with the hard locking structure of ratchet and pawl, the headrest structure of this solution can be adjusted by the user only needing to apply appropriate pressure to the front support, which meets the test requirements of the headrest whip test and greatly improves the safety and stability of use.

[0024] (2) By having the limiting surface tangent to the locking groove, the front support can achieve excellent limiting and locking effects when it rotates to the maximum position relative to the support frame, effectively preventing unnecessary shaking of the front support and affecting the user's experience.

[0025] (3) This solution, together with the use of the ear wings, snap rings and unlocking mechanism, enables the headrest to be freely adjusted in six directions. The overall structure is relatively simple, suitable for the needs of thinner headrests, and the adjustment is convenient and quick. It is highly flexible and ensures that it can meet the headrest needs of different users. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure in which the front support is in the retracted position in this application;

[0027] Figure 2This is a schematic diagram of the structure in which the front support is in the deployed position in this application;

[0028] Figure 3 This is a schematic diagram of the installation structure of the locking pin within the front support;

[0029] Figure 4 This is a schematic diagram of the installation structure of the traction component within the support frame;

[0030] Figure 5 This is a structural diagram of the traction component and the locking pin;

[0031] Figure 6 yes Figure 4 Enlarged view of section A in the image;

[0032] Figure 7 yes Figure 4 A cross-sectional schematic diagram of BB;

[0033] Figure 8 This is an exploded view of the area between the front support body and the ear wing.

[0034] In the diagram, 1 is the headrest support rod; 10 is the slot.

[0035] 2. Support frame; 20. Mounting slot; 200. Protrusion; 21. Unlock button; 22. Unlocking mechanism; 220. Unlocking body; 221. Snap ring; 221a. Free end; 221b. Fixed end; 23. Elastic element;

[0036] 3. Front support; 30. Front support body; 300. Damping hinge mounting hole; 31. Ear flap plate; 32. Damping hinge;

[0037] 4. Traction component; 40. Guide section; 400. Locking groove; 401. Guide arc surface; 41. Extension block; 410. Limiting surface; 42. Rubber pad; 43. Clearance groove; 44. Weight reduction groove; 45. Mounting block;

[0038] 5. Locking pin. Detailed Implementation

[0039] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0041] like Figure 1As shown, this solution mainly describes a vehicle seat headrest for use in automobiles. However, this vehicle seat headrest is not limited to use in automobile seats, but can also be applied to other seats, such as headrests for chairs in daily life.

[0042] like Figures 1 to 8 As shown, this utility model discloses a vehicle seat headrest, including a support frame 2 connected to a headrest rod and a front support 3. The front support 3 is pivotally connected to the support frame 2 to allow the front support 3 to pivot between a retracted position and an extended position. The headrest also includes a traction member 4 and a locking pin 5. The traction member 4 has a guide portion 40 arranged parallel to the rotation direction of the front support 3, and the guide portion 40 has at least two locking grooves 400. The locking pin 5 is connected to the front support 3 and is movably engaged in the locking groove 400 to restrict the front support 3 to the retracted or extended position. When the locking pin 5 pivots with the front support 3 relative to the support frame 2, the guide portion 40 can elastically deform due to the squeezing force of the locking pin 5, allowing the locking pin 5 to cross the locking groove. When the locking pin 5 engages with the locking groove, the guide portion 40 elastically resets to restrict the movement of the front support 3.

[0043] Specifically, in the initial state, the front support 3 of the vehicle seat headrest is located at... Figure 1 In the retracted position shown, the locking pin 5 is engaged in the locking groove 400 of the traction component 4 closest to the support frame 2, ensuring that the front support 3 is in a stable position; as the user changes the angle of the seat headrest, the position of the front support 3 can be adjusted (e.g., from...). Figure 1 The collapsible position shown is adjusted to... Figure 2 (As shown in the unfolded position), it is worth noting that in this embodiment, there are two locking grooves 400, one for locking the folded position and the other for... Figure 2The front support 3 is locked in the maximum extended position. Of course, the number of locking grooves 400 is not limited to one type in this embodiment. Multiple (greater than or equal to 3) locking grooves 400 can also be provided on the guide part 40 to realize the locking function of the front support 3 in multiple positions. As the user applies appropriate tension to the front support 3, the locking pin 5 begins to press against the guide portion 40 of the traction member 4, causing the guide portion 40 to undergo elastic deformation. As pressure continues to be applied, the locking pin 5 gradually overcomes the elasticity of the traction member 4, slides along the guide portion 40 and crosses the current locking groove 400 (i.e., the locking groove 400 in the retracted position). Once the locking pin 5 reaches the locking groove 400 corresponding to the target position, the user stops applying additional pressure. At this time, the traction member 4 relies on its elasticity to restore its original shape, firmly locking the locking pin 5 into the new locking groove 400 (i.e., the locking groove 400 in the unfolded position), completing the adjustment of the position of the front support 3 and fixing it in the new position. In the new position, the cooperation between the locking pin 5 and the traction member 4 ensures the stability of the front support 3 and prevents it from accidentally rotating or loosening. Therefore, by introducing the locking pin 5 and the traction member 4 with multiple locking grooves 400, this embodiment not only achieves precise control of the front support 3 between the retracted and extended positions, but also significantly improves the stability of these two positions. Even if the vehicle encounters bumps during driving, it can effectively prevent the unexpected movement of the front support 3. At the same time, the user can easily adjust the position of the front support 3 by simply applying pull / pressure, without complicated operation steps. The design of the entire locking pin 5 and traction member 4 is intuitive and efficient, replacing the use of the traditional ratchet and pawl structure, reducing manufacturing costs, and making the headrest of the seat thinner, saving interior space while ensuring the user's safety and comfort.

[0044] The traction member 4 is also provided with an extension block 41 located at the end of the guide part 40 away from the support frame 2. A limiting surface 410 is formed on the extension block 41, and the locking groove 400 is arc-shaped. The limiting surface 410 is tangent to the locking groove 400.

[0045] Furthermore, such as Figure 4 and Figure 5 As shown, in this embodiment, each locking groove 400 is arc-shaped, and as the locking pin 5 moves from... Figure 5 When the right locking groove 400 shown moves into the leftmost locking groove 400, due to the tangential design of the limiting surface 410 and the locking groove 400, the locking pin 5 will encounter a certain resistance from the limiting surface 410 at this point, preventing the locking pin 5 from continuing to cross. Figure 5The rightmost locking groove 400 ensures the stability of the front support 3 when it is in the extended position (i.e., the maximum extended position), effectively preventing the locking pin 5 from accidentally dislodging from the locking groove 400 due to vibrations or other factors during vehicle operation. It provides the necessary resistance to ensure safe locking, allowing passengers to experience greater security and comfort.

[0046] Preferably, in this embodiment, a rubber pad 42 is also provided inside the traction member 4, and the guide part 40 is pressed against the rubber pad 42. The introduction of the rubber pad 42 increases the elastic deformation capability of the guide part 40, prevents the guide part 40 from undergoing permanent elastic deformation, improves durability and extends service life; at the same time, it also helps to reduce the risk of the locking pin 5 disengaging from the locking groove 400 under unexpected circumstances (such as vibration during driving). In addition, the rubber pad 42 not only helps the locking pin 5 to cross the locking groove 400 more smoothly, but also absorbs part of the impact force through its elastic properties, making the operation feel softer and more comfortable, improving the user's operating experience, and making the locking pin 5 more stable in the locked state.

[0047] More preferably, the rubber pad 42 and the traction component 4 are made by two-color injection molding. This two-color injection molding technology integrates the rubber pad 42 and the traction component 4, eliminating problems such as weak connections and easy detachment that may occur with traditional assembly methods. This method not only improves the overall integrity of the product but also enhances its durability and reliability. Furthermore, compared to the traditional hard locking structure of ratchet pawls, this structure achieves a flexible locking function for the front support 3. In other words, the structure of the locking pin 5 and the locking groove 400 ensures the stable locking function of the front support 3 in the required position, while also utilizing the flexible locking characteristic during the car headrest whiplash test (i.e., the front support 3 can disengage the locking pin 5 from the locking groove 400 under certain pressure during the test, meaning the front support 3 can move along...). Figure 2 (Rotating counterclockwise towards the support frame 2) reduces bending injuries to the user's neck, greatly ensuring the user's safety. It should be noted that whiplash injury refers to the neck of the driver and passengers of the collided vehicle experiencing a whip-like motion under the combined action of collision acceleration and head inertia during a rear-end collision. After the accident, the injured person will feel varying degrees of discomfort in their neck. This injury is not fatal, but the recovery process is very complex and lengthy, and some cases may even result in incurable permanent damage.

[0048] A guide arc surface 401 is formed on the guide part 40. The guide arc surface 401 is arranged parallel to the direction of the front support 3 when it pivots. A locking groove 400 is provided on the guide arc surface 401.

[0049] like Figures 4 to 5As shown, as the user applies pivoting force to the front support 3, the locking pin 5 slides along the arc direction of the guide arc surface 401, so as to gradually approach and engage with the locking groove 400 at the corresponding angle. The design of the guide arc surface 401 guides the movement of the locking pin 5, ensuring that the locking pin 5 can move more smoothly during the adjustment process, reducing unnecessary resistance and jamming, and helping to improve the user's operating experience.

[0050] The traction member 4 is also provided with clearance grooves 43 located on both sides of the rubber pad 42 and the guide part 40. The clearance grooves 43 are used to reduce the contact area between the locking pin 5 and the traction member 4.

[0051] Furthermore, such as Figures 4 to 5 As shown, by opening the clearance groove 43 on the traction member 4, the contact area between the locking pin 5 and the traction member 4 is significantly reduced, thereby reducing the friction between the two and effectively reducing the resistance encountered by the locking pin 5 during movement. This not only makes it easier for the locking pin 5 to cross the locking groove 400, but also reduces the possibility of wear and extends the service life of the component.

[0052] More preferably, such as Figure 4 As shown, in this embodiment, the traction member 4 is provided with several weight reduction grooves 44 on the side away from the locking pin 5 (two are provided in this embodiment). The weight reduction grooves 44 can effectively reduce the overall weight of the traction member 4 without sacrificing its structural strength. This is crucial for improving the lightweight design of the entire seat headrest, which not only reduces manufacturing costs but also reduces raw material consumption, resulting in good economic and social benefits.

[0053] The support frame 2 has a mounting groove 20, and a number of protrusions 200 are symmetrically distributed on the inner wall of the mounting groove 20. The traction member 4 has a mounting block 45, which can be moved and pressed against the protrusions 200 when it is inserted into the mounting groove 20, and can be restricted to the support frame 2 by fasteners.

[0054] More preferably, such as Figures 4 to 6As shown, in this embodiment, the stability of the traction component 4 is crucial for the accuracy of the angle adjustment of the front support 3. Specifically, during installation, the worker aligns the end of the traction component 4 with the mounting block 45 with the mounting groove 20 of the support frame 2 and slowly pushes it in. During this process, the mounting block 45 of the traction component 4 needs to overcome the resistance provided by the protrusion 200 to smoothly enter the mounting groove 20. Due to the presence of the protrusion 200, the mounting block 45 will be slightly squeezed and deformed to pass through the space between the protrusions 200. At the same time, the protrusion 200 also provides great convenience for subsequent disassembly, effectively avoiding the mounting block 45 being affected by the large covering force of the mounting groove 20, which would hinder the smoothness of disassembly. Once the mounting block 45 is fully inserted into the mounting groove 20, the worker can use fasteners (such as screws or clips) to firmly fix it to the support frame 2, effectively increasing the connection strength and stability between the traction component 4 and the support frame 2. Even when encountering vibrations or other external forces during vehicle operation, the accuracy and reliability of the headrest position can be guaranteed. Furthermore, the structure can be easily disassembled and replaced when repairs or replacements are needed, extending its service life.

[0055] The front support 3 includes a front support body 30 and ear wings distributed on both sides thereon. The front support body 30 is pivotally connected to the support frame 2. Both ear wings can be connected to both sides of the front support body 30 by damping hinges 32.

[0056] Furthermore, such as Figure 2 and Figure 8 As shown, each ear flap in this embodiment includes two ear flap plates 31 that are fastened together. Damping hinge mounting holes 300 are provided on both sides of the front support body 30, and the aforementioned damping hinges 32 are installed in the damping hinge mounting holes 300. The fastened ear flap plates 31 are mounted on the damping hinges 32. The damping hinges 32 in this embodiment can adopt a mature structure from the prior art, which will not be described in detail here. Preferably, the torque of the damping hinges 32 when the ear flap plates 31 fold forward relative to the front support body 30 is less than the torque of the damping hinges 32 when the ear flap plates 31 fold backward relative to the front support body 30. This arrangement facilitates forward folding of the ear flaps and improves the stability of the ear flap plates 31 during use.

[0057] The headrest bar has several slots 10 distributed along its axial direction, and an unlocking button 21, an unlocking mechanism 22, and an elastic element 23 are provided on the support frame 2. The unlocking mechanism 22 includes an unlocking body 220 and a retaining spring 221 mounted on the unlocking body 220. The unlocking body 220 slides along an axial direction perpendicular to the headrest bar and is held on the support frame 2. The unlocking button 21 is movably pressed against the unlocking body 220. The retaining spring 221 is arranged circumferentially around the headrest bar so that it can be selectively inserted into the slot 10 in its natural state. The fixed end 221b of the retaining spring 221 is fixed to the support frame 2, and the movable end of the retaining spring 221 extends to the outside of the headrest bar and is connected to the unlocking body 220. The two ends of the elastic element 23 are respectively connected to the unlocking body 220 and the support frame 2, so as to drive the unlocking body 220 to push the unlocking button 21 to reset, so that the retaining spring 221 can be engaged in the slot 10.

[0058] Furthermore, such as Figure 4 and Figure 7 As shown, in this embodiment, there are two retaining rings 221 respectively sleeved on the outside of each headrest rod. For ease of description, in this embodiment, the end of the retaining ring 221 connected to the unlocking body 220 is called the free end 221a, and the end connected to the support frame 2 is called the fixed end 221b. When the user squeezes the unlocking button 21, the unlocking body 220 will inevitably move along... Figure 7 Moving to the left, the free end 221a of the retaining ring 221 extends into the unlocking body 220, causing the free end 221a of the retaining ring 221 to expand and disengage from the retaining groove 10. At this point, the support frame 2 can slide up and down, thus adjusting the position of the support frame 2. During the above operation, the elastic element 23 moves along the unlocking body 220... Figure 7 The leftward movement causes compression deformation. As the support frame 2 rises to the required height and the retaining spring 221 engages with the corresponding slot 10, the operator can release the unlock button 21. The elastic restoring ability of the elastic element 23 will cause the unlocking body 220 and the unlock button 21 to automatically reset. This ensures the stability of the support frame 2 when adjusted to the required position and prepares for the next adjustment operation. Thus, this headrest structure achieves free adjustment in six directions: front-to-back tilt adjustment, up-and-down adjustment, and side wing adjustment. This structure is integrated into one headrest. Under the flexible locking of the aforementioned traction element 4 and locking pin 5, it not only saves space occupied by the headrest in the vehicle but also simplifies the entire adjustment structure inside the headrest, allowing the headrest thickness to meet the required thinness.

[0059] It should be noted that the unlocking mechanism 22 in this embodiment can adopt a mature structure from the prior art, and will not be described in detail here. In addition, the elastic element 23 in this embodiment can be replaced by other elastic devices such as compression springs and return springs.

[0060] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0061] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0062] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A vehicle seat headrest comprising a support frame to which a headrest rod is attached, and a front support which is pivoted to the support frame to operate the front support to pivot between a stowed position and a deployed position, characterised in that, The traction member is provided with a guide portion arranged in parallel with the rotating direction of the front support, and at least two locking grooves are distributed on the guide portion; the locking pin is connected to the front support and movably clamped in the locking grooves to limit the front support to the stowed position or the unfolded position. When the locking pin pivots relative to the support frame along with the front support, the guide portion is elastically deformed due to the extrusion force of the locking pin to allow the locking pin to cross the locking grooves, and when the locking pin clamps the locking grooves, the guide portion is elastically reset to limit the movement of the front support. An extension block is further arranged on the traction member at the end of the guide portion away from the support frame, and a limiting surface is formed on the extension block, the locking grooves are arranged in an arc shape, and the limiting surface is tangent to the locking grooves.

2. A vehicle seat headrest according to claim 1, characterized in that A rubber pad is further arranged in the traction member, and the guide portion is tightly attached to the rubber pad.

3. The vehicle seat headrest according to claim 1, characterized by A guide arc surface is formed on the guide portion, and the guide arc surface is arranged in parallel with the pivoting direction of the front support, and the locking grooves are arranged on the guide arc surface.

4. The vehicle seat headrest according to claim 1 or 2, characterized in that, The rubber pad and the traction member are made of double-color injection molding.

5. The vehicle seat headrest according to claim 3, characterized in that, Avoidance grooves are further formed on the traction member at both sides of the rubber pad and the guide portion, and the avoidance grooves are used to reduce the contact area between the locking pin and the traction member.

6. A vehicle seat headrest according to claim 5, characterised in that A weight reduction groove is further arranged on the side of the traction member away from the locking pin, and the weight reduction groove is used to reduce the overall weight of the traction member.

7. The vehicle seat headrest according to claim 1, characterized by A mounting groove is formed in the support frame, a plurality of protrusions are symmetrically distributed on the inner wall of the mounting groove, a mounting block is formed on the traction member, the mounting block is movably abutted to the protrusions when the mounting block extends into the mounting groove, and the mounting block is limited on the support frame by a fastener.

8. The vehicle seat headrest according to claim 1, characterized by The front support includes a front support body and ear wing portions distributed on both sides of the front support body, the front support body is pivotally connected to the support frame, and the two ear wing portions are connected to both sides of the front support body by damping hinges.

9. The vehicle seat headrest according to claim 1, characterized by A plurality of clamping grooves are distributed in the axial direction of the headrest rod, and an unlocking button, an unlocking mechanism, and an elastic member are arranged on the support frame.

10. The vehicle seat headrest according to claim 1 or 9, characterized by The unlocking mechanism includes an unlocking body and a clamping spring assembled on the unlocking body. The unlocking body slides perpendicularly to the axial direction of the headrest rod and is retained on the support frame, and the unlocking button is movably abutted to the unlocking body. The clamping spring is arranged in the circumferential direction of the headrest rod to selectively clamp into the clamping grooves in a natural state, the fixed end of the clamping spring is fixed to the support frame, the movable end of the clamping spring extends out of the headrest rod and is connected to the unlocking body, and the elastic member has two ends respectively connected to the unlocking body and the support frame to drive the unlocking body to push the unlocking button to reset, so that the clamping spring is clamped into the clamping grooves. ​ ​

Images