Seat linkage device, seat and vehicle

Abstract

The invention discloses a seat linkage device, a seat and a vehicle. The seat linkage device comprises a fixed seat, a linkage mechanism and a driving mechanism, the backrest side plate is rotatably mounted on the fixed seat; the headrest zipper is connected with the headrest unlocking mechanism; when the backrest side plate rotates in a first stroke relative to the fixed seat, the linkage reset mechanism drives the headrest zipper to stretch so as to unlock the headrest unlocking mechanism, and when the backrest side plate exceeds the first stroke, the linkage reset mechanism enables the headrest zipper to reset. According to the seat linkage device, the fatigue resistance problem of the headrest zipper in a tight state for a long time is solved, the service life of the headrest zipper is prolonged, and the seat linkage device is simple in structure and low in cost.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and more particularly to a seat linkage device, a seat having the seat linkage device, and a vehicle having the seat. Background Technology

[0002] Many vehicles are equipped with folding headrests. When the seat is folded forward, the headrests automatically fold down to form a flat surface with the trunk, thus expanding the trunk's storage space. To achieve this automatic folding of the headrests during seatback folding, a linkage mechanism is typically added at the backrest's rotation axis. This linkage mechanism is connected to an unlocking end inside the headrest. When the backrest rotates, it activates the linkage mechanism, which in turn unlocks the headrest, thus enabling the headrest to fold down.

[0003] However, in the existing technology, the rotating mechanism is linked with the zipper unlocking end. After the backrest rotates to a certain angle, the linkage mechanism drives the zipper unlocking end to unlock. After unlocking, the zipper is in a taut state. The backrest continues to rotate, and the stroke is compensated by the zipper compensator. After the backrest is reclined, the zipper is in a state of continuous stress. If it is in a state of stress for a long time, the zipper will break due to insufficient fatigue strength, causing the unlocking headrest function to fail. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a seat linkage device that solves the fatigue strength problem of headrest zippers under prolonged tension, improves the service life of headrest zippers, and features a simple structure and low cost.

[0005] According to an embodiment of the present invention, a seat linkage device includes: a fixed seat; a backrest side panel rotatably mounted on the fixed seat; a headrest zipper connected to a headrest unlocking mechanism; and a linkage reset mechanism, wherein when the backrest side panel rotates relative to the fixed seat within a first stroke, the linkage reset mechanism drives the headrest zipper to stretch to unlock the headrest unlocking mechanism, and when the backrest side panel exceeds the first stroke, the linkage reset mechanism resets the headrest zipper.

[0006] According to an embodiment of the present invention, the seat linkage device, by setting a linkage reset mechanism, causes the headrest zipper to stretch and unlock the headrest unlocking mechanism when the backrest side panel rotates within the first stroke relative to the fixed seat. When the backrest side panel exceeds the first stroke, the linkage reset mechanism resets the headrest zipper, realizing the automatic reset of the headrest zipper after the headrest is unlocked and folded. This resets the headrest zipper from an extended, taut, and stressed state to a relaxed, unstressed state, solving the fatigue strength problem of the headrest zipper being in a taut state for a long time, improving the service life of the headrest zipper, and has a simple structure and low cost.

[0007] According to some embodiments of the present invention, the seat linkage device has a pusher on the backrest side panel and a linkage reset mechanism including a movable component. The movable component is movably mounted on the fixed seat. The pusher is adapted to push the movable component to move so as to stretch the headrest zipper. The movable component is adapted to reset the headrest zipper after being separated from the pusher.

[0008] According to some embodiments of the present invention, the seat linkage device includes an unlocking bracket and a reset bracket. The unlocking bracket is movably mounted on the fixed base, and the reset bracket is movably mounted on the unlocking bracket. The unlocking bracket is connected to the headrest zipper. The pushing part is adapted to push the reset bracket to move the unlocking bracket, thereby pulling the headrest zipper to extend. After the pushing part passes the reset bracket, the unlocking bracket drives the headrest zipper to reset.

[0009] According to some embodiments of the present invention, the seat linkage device further includes a first elastic element connected to the unlocking bracket, the first elastic element being used to apply an elastic force to the unlocking bracket to drive the headrest zipper to reset.

[0010] According to some embodiments of the present invention, in the seat linkage device, the unlocking bracket is rotatably mounted on the fixed base, and the connection position between the first elastic member and the unlocking bracket and the installation position between the reset bracket and the unlocking bracket are respectively located on both sides of the rotation axis of the unlocking bracket.

[0011] According to some embodiments of the present invention, in a seat linkage device, the fixed seat is equipped with a detachable first fixed bracket, and the unlocking bracket is rotatably connected to the first fixed bracket.

[0012] According to some embodiments of the present invention, the seat linkage device includes a second fixed bracket installed on the fixed seat. The second fixed bracket includes a first bracket plate and a second bracket plate spaced apart. The headrest zipper includes a locking sleeve and a pull cable passing through the locking sleeve. The pull cable is connected to the unlocking bracket. One end of the locking sleeve is fixed to the first bracket plate. The first elastic element is constructed as a spring. One end of the first elastic element is hooked to the second bracket plate, and the other end of the first elastic element is hooked to the unlocking bracket.

[0013] According to some embodiments of the seat linkage device of the present invention, the movable component further includes a second elastic member, the reset bracket is rotatably mounted on the unlocking bracket, and the second elastic member is connected between the reset bracket and the unlocking bracket for pre-tightening the reset bracket toward the unlocking bracket.

[0014] According to some embodiments of the present invention, when the backrest side panel rotates forward relative to the fixed seat within the first stroke, the pushing part, the reset bracket, and the unlocking bracket press against each other in sequence; wherein, when the backrest side panel rotates in the opposite direction relative to the fixed seat, the pushing part pushes the reset bracket to rotate relative to the unlocking bracket and stretches the second elastic member, and after the pushing part moves to separate from the reset bracket, the second elastic member drives the reset bracket to reset and press against the unlocking bracket.

[0015] According to some embodiments of the present invention, the seat linkage device has a first connecting flange on the reset bracket and a second connecting flange on the unlocking bracket. The second elastic member is constructed as a spring, and the two ends of the second elastic member are respectively hooked to the first connecting flange and the second connecting flange.

[0016] According to some embodiments of the present invention, the seat linkage device further includes an adjuster and a drive structure. The backrest side panel is rotatably mounted on the fixed seat via the adjuster. The drive structure drives the adjuster to rotate, thereby causing the backrest side panel to rotate relative to the fixed seat.

[0017] According to some embodiments of the present invention, the seat linkage device includes a driving structure including a driving member and a driving shaft, the angle adjuster including a mounting part and a fixing part that are rotatably engaged, the fixing part being connected to the fixing seat, the mounting part being connected to the backrest side panel, and the driving member being connected to the mounting part through the driving shaft to drive the mounting part to rotate relative to the fixing part.

[0018] The present invention also proposes a seat.

[0019] The seat according to the embodiments of the present invention includes the seat linkage device described in any of the above embodiments.

[0020] The present invention also proposes a vehicle.

[0021] The vehicle according to an embodiment of the present invention includes the seat described in the above embodiment.

[0022] The advantages of the seat, the vehicle, and the aforementioned seat linkage device compared to the prior art are the same, and will not be repeated here.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the structure of the seat linkage device according to an embodiment of the present invention. Figure 1 (At the initial position);

[0026] Figure 2 This is an exploded view of a seat linkage device according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the seat linkage device according to an embodiment of the present invention. Figure 2 (At the initial position);

[0028] Figure 4 This is a schematic diagram of the structure of the seat linkage device according to an embodiment of the present invention. Figure 3 (within the first leg of the journey);

[0029] Figure 5 This is a schematic diagram of the structure of the seat linkage device according to an embodiment of the present invention. Figure 4 (Exceeding the first leg);

[0030] Figure 6 This is a schematic diagram of the structure of the seat linkage device according to an embodiment of the present invention. Figure 5 (Exceeding the first leg);

[0031] Figure 7 This is a schematic diagram of the structure of an active component according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the second fixed bracket according to an embodiment of the present invention;

[0033] Figure 9 This is a structural schematic diagram of the backrest side panel according to an embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the fixing base according to an embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram of the headrest zipper according to an embodiment of the present invention;

[0036] Figure 12 This is an exploded view of the active components according to an embodiment of the present invention.

[0037] Figure label:

[0038] Seat linkage device 100,

[0039] Fixed base 1, first fixed bracket 11, first connecting surface 111, second connecting surface 112, second connecting hole 1121, second fixed bracket 12, first bracket plate 121, first snap-fit ​​hole 1211, second bracket plate 122, first hanging hole 1221.

[0040] 2. Backrest side panel; 21. Pushing part; 3. Headrest zipper; 31. Lock sleeve end; 32. Pull cord; 33. Fixing buckle; 34. Lock sleeve.

[0041] The components include: movable component 41, unlocking bracket 411, second connecting flange 4111, fourth hook hole 41111, first connecting hole 4112, first through hole 4113, second hook hole 4114, reset bracket 412, first connecting flange 4121, third hook hole 41211, first elastic element 413, and second elastic element 414.

[0042] Angle adjuster 5, drive shaft 6, bushing 71, rotating connector 72, first fixed pin 73, second fixed pin 74, pin stop 75. Detailed Implementation

[0043] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0046] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0047] The following is for reference. Figures 1-12 The present invention describes a seat linkage device 100, which solves the fatigue strength problem of the headrest zipper 3 being in a tense state for a long time, improves the service life of the headrest zipper 3, and has a simple structure and low cost.

[0048] like Figures 1-12 As shown, a seat linkage device 100 according to an embodiment of the present invention includes: a fixed seat 1, a backrest side plate 2, a headrest zipper 3, and a linkage reset mechanism.

[0049] The fixed seat 1 is used to fix and support the seat linkage device 100 to ensure the smoothness and reliability of the seat linkage device 100's movement. In practice, the fixed seat 1 can be fixedly installed on the backrest support. For example, the fixed seat 1 can be fixedly installed on the backrest support by bolts, screws and other connecting parts, or it can be installed on the backrest support by welding, snap-fit ​​and other connection methods.

[0050] The backrest side panel 2 is a key structural component of the vehicle seat. Together with the seat frame and seat cushion frame, it forms the overall frame of the seat, primarily bearing the weight and ensuring the structural stability of the seat during long-term use. The backrest side panel 2 is rotatably mounted on the fixed base 1, meaning it is installed on the fixed base 1 and can rotate relative to it to ensure rotational stability.

[0051] The headrest zipper 3 is mainly used to unlock the headrest, allowing it to fold down within a certain range. The headrest zipper 3 is connected to the headrest unlocking mechanism. Pulling the headrest zipper 3 unlocks the locking mechanism between the headrest and the seat frame, allowing the headrest to rotate and fold down under the seat back, increasing trunk space. After folding, the headrest locks into place, ensuring stability and preventing it from loosening or shifting due to vibrations during vehicle operation.

[0052] Furthermore, a linkage reset mechanism is also provided. The linkage reset mechanism is used to realize the automatic reset of the headrest zipper 3 after the headrest is unlocked, so that the headrest zipper 3 is reset from the tense state to the relaxed state, thereby improving the fatigue resistance of the headrest zipper 3 and extending its service life.

[0053] Specifically, when the backrest side panel 2 rotates within the first stroke relative to the fixed base 1, the linkage reset mechanism drives the headrest zipper 3 to extend, thereby unlocking the headrest unlocking mechanism. Furthermore, when the backrest side panel 2 exceeds the first stroke, the linkage reset mechanism resets the headrest zipper 3. For details, please refer to the appendix. Figures 3-6 As shown, the first journey is Figures 3-6 The backrest side panel 2 shown in the diagram rotates clockwise relative to the fixed seat 1 to unlock the headrest. This rotation is also the same rotation when the seat back is folded down and the headrest is flipped. The linkage reset mechanism is connected to the headrest zipper 3. Since the headrest zipper 3 is also connected to the headrest unlocking mechanism, when the backrest side panel 2 rotates relative to the fixed seat 1 within the first stroke, the linkage reset mechanism will cause the headrest zipper 3 to extend. During the extension of the headrest zipper 3, the headrest unlocking mechanism will be unlocked, allowing the headrest to automatically fold. Thus, within the first stroke, the headrest automatically folds after the seat back is folded down. When the backrest side panel 2 rotates relative to the fixed seat 1 beyond the first stroke, the linkage reset mechanism will generate a reset force to reset the headrest zipper 3, causing it to automatically reset. This ensures that after the headrest is unlocked and folded, the headrest zipper 3 returns from an extended, tense state to a relaxed, unstressed state, solving the fatigue resistance problem of the headrest zipper 3 being in a tense state for a long time and improving its service life.

[0054] In practical design, the linkage reset mechanism can be equipped with elastic elements, magnetic elements, hydraulic / pneumatic structures, cam structures, ratchet structures, gravity reset structures, etc., to achieve the reset of the headrest zipper 3. It can be flexibly set according to actual needs and is not limited to the one described in this embodiment. In addition, in the seat linkage device 100 of this application, the linkage reset mechanism can be set as a purely mechanical structure to reduce costs.

[0055] According to the embodiment of the present invention, the seat linkage device 100, by setting a linkage reset mechanism, causes the headrest zipper 3 to stretch and unlock the headrest unlocking mechanism when the backrest side panel 2 rotates relative to the fixed seat 1 within the first stroke. When the backrest side panel 2 exceeds the first stroke, the linkage reset mechanism resets the headrest zipper 3, realizing the automatic reset of the headrest zipper 3 after the headrest is unlocked and folded. This resets the headrest zipper 3 from an extended and tense state to a relaxed and unstressed state, solving the fatigue strength problem of the headrest zipper 3 being in a tense state for a long time, improving the service life of the headrest zipper 3. The structure is simple and the cost is low.

[0056] In some embodiments, the backrest side panel 2 is provided with a pushing part 21, and the linkage reset mechanism includes a movable component 41. The movable component 41 is movably mounted on the fixed base 1. The pushing part 21 is adapted to push the movable component 41 to move so as to stretch the headrest zipper 3. The movable component 41 is adapted to drive the headrest zipper 3 to reset after being separated from the pushing part 21.

[0057] Specifically, the movable component 41 is mounted on the fixed base 1 and is movable relative to the fixed base 1, so that the movable component 41 can move stably to realize the extension and reset of the headrest zipper 3. The backrest side panel 2 is provided with a pushing part 21, which can move with the backrest side panel 2. When the backrest side panel 2 rotates within the first stroke relative to the fixed base 1, the pushing part 21 rotates with the fixed base 1 within the first stroke. When the pushing part 21 rotates to a certain range, it will contact the movable component 41 and apply a pushing force to the movable component 41 to push the movable component 41. When component 41 moves, the movable component 41 is connected to the headrest zipper 3 so that when the movable component 41 moves, it drives the headrest zipper 3 to stretch, thereby unlocking the headrest and allowing it to rotate and fold. At this time, the headrest zipper 3 is in a taut state. When the pushing part 21 rotates with the backrest side plate 2 relative to the fixed base 1 beyond the first stroke, the pushing part 21 will separate from the movable component 41. At this time, the pushing part 21 no longer applies a pushing force to the movable component 41, and the movable component 41 applies a restoring force to the headrest zipper 3 to drive the headrest zipper 3 back to its initial state, that is, a relaxed state without force.

[0058] Thus, within the first stroke, the pusher 21 pushes the movable component 41 to move, thereby pulling the headrest zipper 3 and unlocking the headrest. When the first stroke is exceeded, the pusher 21 separates from the movable component 41, thereby resetting the headrest zipper 3 and making it flexible and convenient.

[0059] In a specific embodiment, such as Figure 1As shown, the backrest side panel 2 is provided with a pushing part 21. The pushing part 21 can be constructed as a pushing column protruding towards the movable component 41, or it can be constructed as a pushing block, etc. The specific shape of the pushing part 21 is not limited and can be flexibly set according to actual needs. The linkage reset mechanism includes a movable component 41, which is movably mounted on the fixed base 1 to achieve fixed installation of the movable component 41 and to be movable relative to the fixed base 1. The end of the headrest zipper 3 is connected to the movable component 41. Thus, when the backrest side panel 2 rotates relative to the fixed base 1 within the first stroke, the pushing part 21 can contact the movable component 41 to push the movable component 41 to move. The movement of the movable component 41 causes the headrest zipper 3 to stretch. When the backrest side panel 2 rotates relative to the fixed base 1 beyond the first stroke, the pushing part 21 separates from the movable component 41, and the movable component 41 drives the headrest zipper 3 to reset.

[0060] In some embodiments, such as Figure 1 As shown, the movable component 41 includes an unlocking bracket 411 and a reset bracket 412. The unlocking bracket 411 is movably mounted on the fixed base 1, meaning it is mounted on the fixed base 1 and movable relative to it. The reset bracket 412 is movably mounted on the unlocking bracket 411, meaning it is mounted on the unlocking bracket 411 and movable relative to it. This ensures that the unlocking bracket 411 and the reset bracket 412 can move stably. The unlocking bracket 411 is connected to the end of the headrest zipper 3, so that when the unlocking bracket 411 moves, it can cause the headrest zipper 3 to stretch or loosen. Furthermore, the pushing part 21 is adapted to push the reset bracket 412 to move the unlocking bracket 411, thereby pulling the headrest zipper 3 to stretch. After the pushing part 21 passes the reset bracket 412, the unlocking bracket 411 causes the headrest zipper 3 to reset.

[0061] Specifically, such as Figures 3-6 As shown in the rotation direction of the backrest side panel 2, the first stroke is the rotational travel of the pushing part 21 from not contacting the pushing part 21 to contacting the pushing part 21 and continuously pressing against the pushing part 21. During the first stroke, the backrest side panel 2 rotates clockwise relative to the fixed base 1 until the backrest side panel 2 rotates to the point where the pushing part 21 presses against the reset bracket 412. At this time, the backrest side panel 2 continues to rotate clockwise, which causes the pushing part 21 to apply a pushing force to the reset bracket 412, so as to push the reset bracket 412 to move relative to the unlocking bracket 411 and drive the unlocking bracket 411 to move relative to the fixed base 1. When the unlocking bracket 411 moves, it pulls the headrest zipper 3 to stretch, so that the headrest zipper 3 begins to unlock the headrest, until the backrest side panel 2 continues to rotate clockwise until the pushing part 21 passes the reset bracket 412 and no longer contacts the reset bracket 412. Figure 4The image shows the state where the pushing part 21 of the backrest side panel 2 is about to pass the reset bracket 412. After the pushing part 21 separates from the reset bracket 412, the pushing part 21 no longer applies a pushing force to the reset bracket 412, and the unlocking bracket 411 will continue to move to drive the headrest zipper 3 to reset.

[0062] In some embodiments, the active component 41 further includes a first elastic element 413, which is connected to the unlocking bracket 411 and is used to apply an elastic force to the unlocking bracket 411 to reset the headrest zipper 3.

[0063] Specifically, the first elastic element 413 has an elastic force, which generates an elastic force to restore the initial state when deformed. The first elastic element 413 is connected to the unlocking bracket 411. Thus, when the pushing part 21 pushes the reset bracket 412 to move the unlocking bracket 411 and pull the headrest zipper 3, the first elastic element 413 will be compressed or stretched. At this time, the pushing force applied by the reset bracket 412 to the unlocking bracket 411 is greater than the elastic force of the first elastic element 413. In this way, the unlocking bracket 411 can overcome the elastic force of the first elastic element 413 and be driven to move by the reset bracket 412. After the pushing part 21 passes the reset bracket 412, the pushing part 21 no longer applies a pushing force to the reset bracket 412, that is, the reset bracket 412 no longer applies a pushing force to the unlocking bracket 411 to move the unlocking bracket 411. At this time, the unlocking bracket 411 is only subjected to the elastic force of the first elastic element 413 to restore the initial state. The unlocking bracket 411 will move under the action of the elastic force of the first elastic element 413 to drive the headrest zipper 3 to reset.

[0064] In actual design, the first elastic element 413 can be set as a torsion spring, a coil spring, a rubber spring, a tension spring, etc., and can be flexibly set according to actual needs, and is not limited to the one described in this embodiment.

[0065] In some embodiments, the unlocking bracket 411 is rotatably mounted on the fixed base 1, and the connection position between the first elastic member 413 and the unlocking bracket 411 and the installation position between the reset bracket 412 and the unlocking bracket 411 are respectively located on both sides of the rotation axis of the unlocking bracket 411.

[0066] Specifically, the unlocking bracket 411 is rotatably mounted on the fixed base 1, meaning that the unlocking bracket 411 is mounted on the fixed base 1 and can rotate relative to the fixed base 1. In actual design, the unlocking bracket 411 can be rotatably mounted on the fixed base 1 by means of a rotating shaft, riveting, etc., which is flexible and optional. The connection position between the first elastic element 413 and the unlocking bracket 411 and the installation position between the reset bracket 412 and the unlocking bracket 411 are respectively located on both sides of the rotation axis of the unlocking bracket 411. In this way, when the reset bracket 412 drives the unlocking bracket 411 to rotate around the rotation axis relative to the fixed base 1, the unlocking bracket 411 can smoothly drive the headrest zipper 3 to stretch, thereby unlocking the headrest. At the same time, the first elastic element 413 deforms, generating an elastic force opposite to the movement of the unlocking bracket 411 during the unlocking process, so that the headrest zipper 3 can be reset afterwards.

[0067] like Figure 12 As shown, the unlocking bracket 411 is constructed as a long strip plate, as... Figure 1 As shown in the vertical direction, the connection position between the first elastic element 413 and the unlocking bracket 411 is located on the lower side of the rotation axis of the unlocking bracket 411, and the installation position between the reset bracket 412 and the unlocking bracket 411 is located on the upper side of the rotation axis of the unlocking bracket 411. Thus, the connection position between the first elastic element 413 and the unlocking bracket 411 and the installation position between the reset bracket 412 and the unlocking bracket 411 are respectively located on both sides of the rotation axis of the unlocking bracket 411. In this way, within the first stroke, when the backrest side panel 2 rotates clockwise, the reset bracket 412 drives the unlocking bracket 411 to rotate counterclockwise, so that the unlocking bracket 411 can drive the headrest zipper 3 to extend, thereby unlocking the headrest. After the first stroke, when the backrest side panel 2 rotates clockwise, the reset bracket 412 no longer drives the unlocking bracket 411 to rotate counterclockwise, and the unlocking bracket 411 will smoothly reset under the action of the first elastic element 413, thereby driving the headrest zipper 3 to reset.

[0068] In some embodiments, the mounting base 1 is equipped with a detachable first mounting bracket 11, and the unlocking bracket 411 is rotatably connected to the first mounting bracket 11.

[0069] Specifically, the first fixed bracket 11 is used to fix the unlocking bracket 411, ensuring that the unlocking bracket 411 is stably installed on the fixed base 1 and can rotate stably relative to the fixed base 1. The first fixed bracket 11 is installed on the fixed base 1 and can be removed from the fixed base 1 for easy replacement. The first fixed bracket 11 can be installed on the fixed base 1 by detachable connection methods such as snap-fit, bolt connection, and screw connection. Of course, the first fixed bracket 11 can also be installed on the fixed base 1 by non-detachable fixed connection methods such as welding and riveting, which can be flexibly selected. Among them, the unlocking bracket 411 is rotatably connected to the first fixed bracket 11, that is, the unlocking bracket 411 is connected to the first fixed bracket 11 and can rotate relative to the first fixed bracket 11, so that the unlocking bracket 411 can rotate flexibly.

[0070] like Figure 1 As shown, since there is a certain distance between the surface of the backrest side panel 2 and the surface of the fixed base 1, in order to enable the unlocking bracket 411 to rotate flexibly, a first fixed bracket 11 is provided. The first fixed bracket 11 extends toward the direction close to the unlocking bracket 411, so that the unlocking bracket 411 can be rotatably installed on the fixed base 1 through the rotational connection between the first fixed bracket 11 and the unlocking bracket 411.

[0071] The first fixing bracket 11 can be constructed as a bent plate, such as... Figure 10 As shown, the first fixed bracket 11 includes a first connecting surface 111 and a second connecting surface 112. Both the first connecting surface 111 and the second connecting surface 112 are bent relative to the first fixed bracket 11. The first connecting surface 111 is used to connect with the fixed base 1, and the second connecting surface 112 is used to connect with the unlocking bracket 411. A first connecting hole 4112 can be provided on the unlocking bracket 411, and a second connecting hole 1121 can be provided on the second connecting surface 112. The bushing 71 can be fixed in the first connecting hole 4112. The rotating connector 72 is sequentially inserted through the bushing 71 and the second connecting hole 1121 to realize the rotatable connection between the unlocking bracket 411 and the first fixed bracket 11, that is, the unlocking bracket 411 can rotate around the rotating connector 72. The rotating connector 72 can be constructed as a bolt, rivet, shaft, etc. Figure 12 The rotating connector 72 shown is a stepped bolt, which is riveted and fixed in the second connecting hole 1121. The bushing 71 is engaged with the step of the stepped bolt.

[0072] In some embodiments, such as Figures 3-6 As shown, the mounting base 1 is equipped with a second fixing bracket 12. The second fixing bracket 12 is used to limit excessive movement of the unlocking bracket 411 and to connect the first elastic member 413, such as... Figure 8As shown, the second fixed bracket 12 includes a first bracket plate 121 and a second bracket plate 122 that are spaced apart, and the first bracket plate 121 and the second bracket plate 122 can be spaced apart in parallel.

[0073] Furthermore, such as Figure 11 As shown, the headrest zipper 3 includes a locking sleeve 34 and a pull cable 32 passing through the locking sleeve 34. The pull cable 32 is connected to the unlocking bracket 411. One end of the locking sleeve 34 is fixed to the first bracket plate 121, as shown. Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the first elastic element 413 is constructed as a spring. One end of the first elastic element 413 is attached to the second bracket plate 122, and the other end of the first elastic element 413 is attached to the unlocking bracket 411. Thus, the first elastic element 413 is connected between the second fixed bracket 12 and the unlocking bracket 411. When the pushing part 21 pushes the reset bracket 412 to move, the reset bracket 412 applies a pushing force to the unlocking bracket 411. This pushing force is greater than the initial elastic force of the spring. In other words, it makes the unlocking bracket 411 overcome the initial elastic force of the spring, so that the unlocking bracket 411 can rotate to drive the pull wire 32 to extend. When the unlocking bracket 411 rotates, it will stretch the spring, causing the spring to undergo elastic deformation and generate an elastic force to restore the initial state. After the pushing part 21 passes the reset bracket 412, the reset bracket 412 no longer applies a pushing force to the unlocking bracket 411. At this time, the unlocking bracket 411 will be driven to rotate to the initial position under the action of the spring elastic force, so as to drive the pull wire 32 to reset to the initial position.

[0074] In practical design, such as Figure 11 As shown, a fixing buckle 33 can be provided at the end of the pull wire 32. The end of the pull wire 32 passes through and is fixedly contained in the fixing buckle 33. Meanwhile, as... Figure 12 As shown, a first through hole 4113 can be provided on the unlocking bracket 411, through which the first fixing pin 73 for fixing the fixing buckle 33 can be inserted and fixed, thereby realizing the installation of the first fixing pin 73, so that the unlocking bracket 411 can drive the pull wire 32 to extend or loosen. The end of the locking sleeve 34 can be fixedly connected to the locking sleeve end 31. A first snap-fit ​​hole 1211 can be provided on the first bracket plate 121, the first snap-fit ​​hole 1211 being through in the vertical direction, so that the locking sleeve end 31 can be snapped into the first snap-fit ​​hole 1211, thereby fixing the locking sleeve end 31 on the first bracket plate 121, limiting the movement of the locking sleeve 31 during the stretching of the pull wire 32, and so on. Figure 8 As shown, a first hook hole 1221 can be provided on the second support plate 122, and one end of the first elastic member 413 can hook onto the first hook hole 1221 to achieve that one end of the first elastic member 413 is hooked onto the second support plate 122, and as shown... Figure 12 As shown, a second hook hole 4114 can be provided on the unlocking bracket 411. The other end of the first elastic member 413 can hook onto the second hook hole 4114 so that the other end of the first elastic member 411 can be hooked onto the unlocking bracket 411. Thus, the first elastic member 413 is hooked between the second fixed bracket 12 and the unlocking bracket 411 and can be compressed or stretched between the second fixed bracket 12 and the unlocking bracket 411.

[0075] And such as Figures 3-6 As shown, in practice, when the pushing part 21 pushes the reset bracket 412 to drive the unlocking bracket 411 to rotate counterclockwise and pull the headrest zipper 3 to extend, that is, within the first stroke, the first elastic element 413 is stretched. After the pushing part 21 passes the reset bracket 412, that is, after the first stroke, the first elastic element 413 will apply an elastic pulling force to the unlocking bracket 411 to restore it to its initial state. Under the action of the elastic pulling force of the first elastic element 413, the unlocking bracket 411 will rotate clockwise to the initial position, thereby driving the headrest zipper 3 to reset to the initial position.

[0076] In some embodiments, the active component 41 further includes a second elastic member 414, the reset bracket 412 is rotatably mounted on the unlock bracket 411, and the second elastic member 414 is connected between the reset bracket 412 and the unlock bracket 411 for pre-tightening the reset bracket 412 toward the unlock bracket 411.

[0077] Specifically, the reset bracket 412 is rotatably mounted on the unlock bracket 411, that is, the reset bracket 412 is mounted on the unlock bracket 411 and can rotate relative to the unlock bracket 411. The second elastic member 414 has elastic force and will generate an elastic force to restore the initial state when deformed. One end of the second elastic member 414 can be connected to the reset bracket 412, and the other end of the second elastic member 414 can be connected to the unlock bracket 411. Thus, the second elastic member 414 is connected between the reset bracket 412 and the unlock bracket 411 and can be compressed or stretched between the reset bracket 412 and the unlock bracket 411. The second elastic member 414 is used to pre-tighten the reset bracket 412 toward the unlock bracket 411, that is, the second elastic member 414 is used to rotate the reset bracket 412 relative to the unlock bracket 411 to a position in contact with the unlock bracket 411.

[0078] In practice, such as Figures 3-6As shown, when the reset bracket 412 and the unlock bracket 411 are in their initial state, the second elastic member 414 is connected between the reset bracket 412 and the unlock bracket 411 and does not undergo elastic deformation. During the first stroke, when the backrest side plate 2 rotates clockwise, the reset bracket 412 applies a pushing force to the unlock bracket 411 when the pushing part 21 pushes the reset bracket 412 to rotate relative to the unlock bracket 411, thereby compressing the second elastic member 414. After the first stroke, after the pushing part 21 passes the reset bracket 412, the reset bracket 412 no longer applies a pushing force to the unlock bracket 411, and the second elastic member 414 applies an elastic force to the reset bracket 412. The force is applied to the reset bracket 412 to return to its initial position. When the backrest side panel 2 rotates counterclockwise, the pushing part 21 pushes the reset bracket 412 to rotate relative to the unlocking bracket 411 again. However, the reset bracket 412 no longer applies a pushing force to the unlocking bracket 411. At this time, the pushing force applied by the pushing part 21 to the reset bracket 412 is greater than the initial elastic force of the second elastic member 414. The second elastic member 414 will be stretched until the reset bracket 412 passes the reset bracket 412 again. Then, the reset bracket 412 will rotate to its initial position under the action of the elastic force of the second elastic member 414, that is, the position where the reset bracket 412 contacts the unlocking bracket 411.

[0079] In practical design, such as Figure 12 As shown, the second fixing pin 74 can be fixedly connected to the unlocking bracket 411, and the second fixing pin 74 passes through the reset bracket 412, so that the reset bracket 412 can rotate around the second fixing pin 74. This allows the reset bracket 412 to be rotatably mounted on the unlocking bracket 411, enabling the reset bracket 412 to rotate flexibly relative to the unlocking bracket 411. Two pin stops 75 can also be provided, located at both ends of the second fixing pin 74, with the second fixing pin 74 passing through the two pin stops 75, to allow the reset bracket 412 to rotate more stably. The first elastic element 413 can be a torsion spring, a coil spring, a rubber spring, etc., and can be flexibly set according to actual needs, not limited to the embodiment described herein.

[0080] It should be noted that the active component 41 consists entirely of mechanical structural parts, which achieve automatic reset through the first elastic element 413 and the second elastic element 414, eliminating the need for electric drive reset, thus reducing costs. The overall structure is simple and highly feasible.

[0081] In some embodiments, when the backrest side plate 2 rotates forward relative to the fixed base 1 within the first stroke, the pushing part 21, the reset bracket 412 and the unlocking bracket 411 press against it in sequence.

[0082] In other words, when the backrest side panel 2 rotates forward relative to the fixed base 1 within the first stroke, such as Figures 3-6When the forward rotation shown is clockwise, the pushing part 21 will rotate clockwise along with the backrest side panel 2, as shown. Figure 3 and Figure 4 As shown, when the pushing part 21 rotates to make tight contact with one side of the reset bracket 412, the pushing part 21 applies a pushing force to the reset bracket 412, so that the reset bracket 412 rotates toward the unlocking bracket 411, so that the reset bracket 412 and the unlocking bracket 411 are tightly pressed together. The reset bracket 412 applies a pushing force to the unlocking bracket 411, so that the unlocking bracket 411 rotates in the opposite direction to the rotation direction of the backrest side plate 2, as shown in Figure 3. Figure 4 The unlocking bracket 411 rotates counterclockwise, causing the headrest cable to extend until the pushing part 21 passes the reset bracket 412 and rotates to the other side of the reset bracket 412. At this point, the headrest is unlocked and the first stroke is completed. The pushing part 21 no longer applies a pushing force to the reset bracket 412, and the reset bracket 412 no longer applies a pushing force to the unlocking bracket 411. The unlocking bracket 411 no longer rotates counterclockwise and will rotate clockwise to the initial position under the elastic force of the first elastic element 413, thereby resetting the headrest cable 3.

[0083] Furthermore, when the backrest side panel 2 rotates in the opposite direction relative to the fixed seat 1, the pushing part 21 pushes the reset bracket 412 to rotate relative to the unlocking bracket 411 and stretches the second elastic member 414. After the pushing part 21 moves to separate from the reset bracket 412, the second elastic member 414 drives the reset bracket 412 to reset and press against the unlocking bracket 411.

[0084] In other words, when the backrest side panel 2 rotates in the opposite direction relative to the fixed base 1, such as Figure 5 and Figure 6 When the reverse rotation shown is a counterclockwise rotation, the pushing part 21 will rotate in the opposite direction along with the backrest side plate 2. When the pushing part 21 rotates to make tight contact with the other side of the reset bracket 412, the pushing part 21 applies a pushing force to the reset bracket 412 to push the reset bracket 412 to rotate relative to the unlock bracket 411 in a direction away from the unlock bracket 411, so that the second elastic member 414 is stretched. Until the pushing part 21 moves past the reset bracket 412 again and separates from the reset bracket 412, the reset bracket 412 will rotate relative to the unlock bracket 411 in a direction close to the unlock bracket 411 under the elastic force of the second elastic member 414, so that the reset bracket 412 rotates to press against the unlock bracket 411, realizing the reset bracket 412 moving to the initial position.

[0085] As a result, the first elastic element 413, the second elastic element 414, the unlocking bracket 411, the reset bracket 412, and the headrest zipper 3 all returned to their initial positions, thus achieving the reset of each structure.

[0086] In some embodiments, the reset bracket 412 is provided with a first connecting flange 4121, the unlocking bracket 411 is provided with a second connecting flange 4111, the second elastic member 414 is constructed as a spring, and the two ends of the second elastic member 414 are respectively hooked to the first connecting flange 4121 and the second connecting flange 4111.

[0087] Specifically, such as Figure 12 As shown, the reset bracket 412 is provided with a first connecting flange 4121, and the unlocking bracket 411 is provided with a second connecting flange 4111. The first connecting flange 4121 is provided with a third hooking hole 41211, and the second connecting flange 4111 is provided with a fourth hooking hole 41111. The second elastic member 414 is constructed as a spring. One end of the second elastic member 414 hooks into the third hooking hole 41211 to achieve one end of the second elastic member 414 being hooked into the reset bracket 412, and the other end of the second elastic member 414 hooks into the fourth hooking hole 41111 to achieve the other end of the second elastic member 414 being hooked into the unlocking bracket 411. Thus, both ends of the second elastic member 414 are respectively hooked into the first connecting flange 4121 and the second connecting flange 4111.

[0088] In some embodiments, the seat linkage device 100 further includes an adjuster 5 and a drive structure. The backrest side panel 2 is rotatably mounted on the fixed seat 1 via the adjuster 5, and the drive structure drives the adjuster 5 to rotate so as to rotate the backrest side panel 2 relative to the fixed seat 1.

[0089] Specifically, such as Figure 1 As shown, the seat linkage device 100 also includes an adjuster 5 and a drive structure. The adjuster 5 is installed between the backrest side panel 2 and the fixed seat 1. One side of the adjuster 5 can be welded to the backrest side panel 2, and the other side of the adjuster 5 can be welded to the fixed seat 1 to achieve stable installation of the adjuster 5. When the drive structure is running, the drive structure drives the adjuster 5 to rotate, and the rotation of the adjuster 5 causes the backrest side panel 2 to rotate relative to the fixed seat 1.

[0090] In some embodiments, the drive structure includes a drive member and a drive shaft 6. The angle adjuster 5 includes a mounting part and a fixing part that are rotatably engaged. The fixing part is connected to the fixing seat 1, and the mounting part is connected to the backrest side plate 2. The drive member is connected to the mounting part through the drive shaft 6 to drive the mounting part to rotate relative to the fixing part.

[0091] Specifically, the fixed part can be welded to the fixed seat 1, and the mounting part can be welded to the backrest side plate 2. In practice, when the drive component is running, it can drive the drive shaft 6 to rotate. When the drive shaft 6 rotates, it drives the mounting part to rotate relative to the fixed part. In actual design, the drive component can be constructed as a drive motor, and the motor shaft of the drive motor can be connected to the drive shaft 6.

[0092] The present invention also proposes a seat.

[0093] The seat according to an embodiment of the present invention includes the seat linkage device 100 of any of the above embodiments.

[0094] The seat linkage device 100 includes a linkage reset mechanism. When the backrest side panel 2 rotates within the first stroke relative to the fixed seat 1, the linkage reset mechanism drives the headrest zipper 3 to stretch, thereby unlocking the headrest unlocking mechanism. When the backrest side panel 2 exceeds the first stroke, the linkage reset mechanism resets the headrest zipper 3, achieving automatic reset of the headrest zipper 3 after the headrest is unlocked and folded. This resets the headrest zipper 3 from an extended, taut, and stressed state to a relaxed, unstressed state, solving the fatigue resistance problem of the headrest zipper 3 being in a taut state for a long time and improving the service life of the headrest zipper 3.

[0095] According to an embodiment of the present invention, by providing the aforementioned seat linkage device 100, the service life of the seat can be increased, the cost of the seat can be reduced, and the user experience can be improved.

[0096] The present invention also proposes a vehicle.

[0097] The vehicle according to embodiments of the present invention includes the seat of any of the above embodiments.

[0098] According to embodiments of the present invention, by equipping the vehicle with the aforementioned seats, the cost of the vehicle can be reduced and the user experience improved.

[0099] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0100] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A seat linkage device, characterized in that, include: Fixed base (1); Backrest side panel (2), the backrest side panel (2) is rotatably mounted on the fixed base (1); A headrest zipper (3) is connected to a headrest unlocking mechanism; The linkage reset mechanism is used to drive the headrest zipper (3) to stretch when the backrest side plate (2) rotates relative to the fixed seat (1) within the first stroke, so as to unlock the headrest unlocking mechanism. When the backrest side plate (2) exceeds the first stroke, the linkage reset mechanism resets the headrest zipper (3).

2. The seat linkage device according to claim 1, characterized in that, The backrest side panel (2) is provided with a pushing part (21), and the linkage reset mechanism includes a movable component (41). The movable component (41) is movably installed on the fixed base (1). The pushing part (21) is adapted to push the movable component (41) to move so as to stretch the headrest zipper (3). The movable component (41) is adapted to drive the headrest zipper (3) to reset after being separated from the pushing part (21).

3. The seat linkage device according to claim 2, characterized in that, The active component (41) includes an unlocking bracket (411) and a reset bracket (412). The unlocking bracket (411) is movably mounted on the fixed base (1), and the reset bracket (412) is movably mounted on the unlocking bracket (411). The unlocking bracket (411) is connected to the headrest zipper (3). The pushing part (21) is adapted to push the reset bracket (412) to drive the unlocking bracket (411) to move, so as to pull the headrest zipper (3) to stretch, and after the pushing part (21) passes the reset bracket (412), the unlocking bracket (411) drives the headrest zipper (3) to reset.

4. The seat linkage device according to claim 3, characterized in that, The active component (41) further includes a first elastic element (413), which is connected to the unlocking bracket (411). The first elastic element (413) is used to apply an elastic force to the unlocking bracket (411) to drive the headrest zipper (3) to reset.

5. The seat linkage device according to claim 4, characterized in that, The unlocking bracket (411) is rotatably mounted on the fixed base (1). The connection position between the first elastic element (413) and the unlocking bracket (411) and the installation position between the reset bracket (412) and the unlocking bracket (411) are respectively located on both sides of the rotation axis of the unlocking bracket (411).

6. The seat linkage device according to claim 5, characterized in that, The fixed base (1) is equipped with a detachable first fixed bracket (11), and the unlocking bracket (411) is rotatably connected to the first fixed bracket (11).

7. The seat linkage device according to claim 5, characterized in that, The fixed base (1) is equipped with a second fixed bracket (12), which includes a first bracket plate (121) and a second bracket plate (122) that are spaced apart. The headrest zipper (3) includes a locking sleeve (34) and a pull wire (32) passing through the locking sleeve (34). The pull wire (32) is connected to the unlocking bracket (411). One end of the locking sleeve (34) is fixed to the first bracket plate (121). The first elastic element (413) is constructed as a spring. One end of the first elastic element (413) is hooked to the second bracket plate (122), and the other end of the first elastic element (413) is hooked to the unlocking bracket (411).

8. The seat linkage device according to claim 3, characterized in that, The active component (41) further includes a second elastic element (414), the reset bracket (412) is rotatably mounted on the unlock bracket (411), and the second elastic element (414) is connected between the reset bracket (412) and the unlock bracket (411) for pre-tightening the reset bracket (412) toward the unlock bracket (411).

9. The seat linkage device according to claim 8, characterized in that, When the backrest side panel (2) rotates in the forward direction relative to the fixed base (1) within the first stroke, the pushing part (21), the reset bracket (412) and the unlocking bracket (411) press against each other in sequence; When the backrest side panel (2) rotates in the opposite direction to the fixed base (1), the pushing part (21) pushes the reset bracket (412) to rotate relative to the unlocking bracket (411) and stretches the second elastic member (414). After the pushing part (21) moves to separate from the reset bracket (412), the second elastic member (414) drives the reset bracket (412) to reset and press against the unlocking bracket (411).

10. The seat linkage device according to claim 8, characterized in that, The reset bracket (412) is provided with a first connecting flange (4121), the unlocking bracket (411) is provided with a second connecting flange (4111), the second elastic member (414) is constructed as a spring, and the two ends of the second elastic member (414) are respectively hooked to the first connecting flange (4121) and the second connecting flange (4111).

11. The seat linkage device according to any one of claims 1-10, characterized in that... It also includes an angle adjuster (5) and a drive structure. The backrest side panel (2) is rotatably mounted on the fixed base (1) via the angle adjuster (5). The drive structure drives the angle adjuster (5) to rotate so that the backrest side panel (2) rotates relative to the fixed base (1).

12. The seat linkage device according to claim 11, characterized in that... The drive structure includes a drive component and a drive shaft (6). The angle adjuster (5) includes a mounting part and a fixing part that are rotatably engaged. The fixing part is connected to the fixing seat (1). The mounting part is connected to the backrest side plate (2). The drive component is connected to the mounting part through the drive shaft (6) to drive the mounting part to rotate relative to the fixing part.

13. A seat, characterized in that, Includes the seat linkage device according to any one of claims 1-12.

14. A vehicle, characterized in that, Includes the seat as described in claim 13.

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