Vehicle seat headrest, vehicle seat, and vehicle

Abstract

The application discloses a vehicle seat headrest, a vehicle seat and a vehicle, and belongs to the technical field of vehicle accessories. The disclosed vehicle comprises a vehicle seat, the vehicle seat comprises a vehicle seat headrest, the vehicle seat headrest comprises a headrest framework and a side limiting mechanism, the side limiting mechanism is arranged on the headrest framework, and at least part of the side limiting mechanism is movable relative to the headrest framework; a headrest body is wrapped outside the headrest framework and the side limiting mechanism; wherein part of the headrest body can protrude outward along with the movement of the side limiting mechanism to form a side limiting part, and the side limiting part is used for limiting cooperation with the head of a driver or passenger in the width direction of the vehicle seat. The vehicle seat headrest can limit the lateral swing of the head of the driver or passenger, thereby improving the comfort of the neck of the driver or passenger and reducing the damage probability of the neck of the driver or passenger.

Description

Technical Field

[0001] This application belongs to the field of vehicle parts technology, specifically relating to a vehicle seat headrest, a vehicle seat, and a vehicle. Background Technology

[0002] Vehicle seat headrests are an important component of vehicle seats. They are used to support the head of the driver and passengers, thereby relieving neck fatigue during long drives or rides and improving driving and riding comfort.

[0003] However, traditional vehicle seat headrests cannot restrict the lateral movement of the driver's and passengers' heads during vehicle operation, especially when turning or on bumpy roads, which can easily lead to neck discomfort or even injury. Utility Model Content

[0004] The purpose of this application is to provide a vehicle seat headrest, a vehicle seat, and a vehicle that can solve the problem that traditional vehicle seat headrests in the related art cannot restrict the lateral movement of the driver's and passenger's head.

[0005] In a first aspect, embodiments of this application provide a vehicle seat headrest, comprising: A headrest frame and a side limiting mechanism, wherein the side limiting mechanism is disposed on the headrest frame and at least a portion of the side limiting mechanism is movable relative to the headrest frame; The headrest body is enclosed by the headrest frame and the side limiting mechanism; The headrest body can protrude outward as the side limiting mechanism moves to form a side limiting part, which is used to limit the head of the driver or passenger in the width direction of the vehicle seat.

[0006] In this embodiment, a portion of the headrest body protrudes outward as the side limiting mechanism moves to form a side limiting part. This side limiting part is used to engage with the occupant's head in the width direction of the vehicle seat. By utilizing the side limiting part to engage with the occupant's head in the width direction of the vehicle seat, lateral support can be provided to the occupant's head, thereby limiting lateral head movement, improving neck comfort, and reducing the probability of neck injury.

[0007] Optionally, the vehicle seat headrest further includes a power assembly, and the side limiting mechanism includes a transmission component and a limiting component. The power assembly is disposed on the headrest frame, the power assembly is connected to the transmission component, and is used to drive the transmission component to move along the height direction of the vehicle seat. The transmission component can cooperate with the limiting component to drive the limiting component to move, and a portion of the headrest body protrudes outward as the limiting component moves.

[0008] Optionally, the vehicle seat headrest further includes a power assembly, with at least a portion of the side limiting mechanism and at least a portion of the power assembly located within the headrest frame.

[0009] Optionally, at least one of the transmission member and the limiting member is provided with a driving ramp, and the transmission member cooperates with the limiting member through the driving ramp to drive the limiting member to move.

[0010] Optionally, the power assembly includes a drive source and a screw connected by a transmission. The drive source is fixedly mounted on the headrest frame, and the screw is rotatably mounted on the headrest frame. The drive source is used to drive the screw to rotate, and the transmission component is threadedly engaged with the screw to move along the height direction of the vehicle seat as the screw rotates.

[0011] Optionally, the transmission component and the headrest frame slide in the height direction of the vehicle seat.

[0012] Optionally, the limiting member is provided with a mating groove. When the transmission member is engaged with the limiting member, at least a portion of the transmission member is located in the mating groove and is engaged with the mating groove in the width direction of the vehicle seat.

[0013] Optionally, the headrest frame is provided with a guide member, and the limiting member and the guide member slide in the direction of their own movement.

[0014] Optionally, the limiting member includes a limiting body and a mating part connected to each other. The mating part is used to cooperate with the transmission member. A portion of the headrest body protrudes outward as the limiting body moves. At least a portion of the guide member is spaced between the limiting body and the mating part and can be used to limit the movement of the limiting body in the direction of movement of the limiting body.

[0015] Optionally, the limiting member further includes a connecting portion, the limiting body is connected to the mating portion through the connecting portion, the connecting portion movably passes through the guide member, and the side limiting mechanism further includes an elastic member, the elastic member is sleeved on the connecting portion and is used to drive the mating portion to reset in the direction from the limiting body to the mating portion.

[0016] Optionally, the number of side limiting mechanisms is at least two, including a first side limiting mechanism and a second side limiting mechanism, wherein the side limiting part corresponding to the first side limiting mechanism and the side limiting part corresponding to the second side limiting mechanism are spaced apart to form a receiving space for accommodating the head of the driver or passenger between them.

[0017] Secondly, this application provides a vehicle seat, including a seat body and the aforementioned vehicle seat headrest, wherein the vehicle seat headrest is disposed on the seat body. This vehicle seat includes the aforementioned vehicle seat headrest, which has the same beneficial effects as the aforementioned vehicle seat headrest, and will not be repeated here.

[0018] Thirdly, embodiments of this application provide a vehicle, including a body and the vehicle seat described above, wherein the vehicle seat is installed within the body. This vehicle includes the vehicle seat described above, which has the same beneficial effects as the vehicle seat described above, and will not be repeated here. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the vehicle seat headrest disclosed in the embodiments of this application; Figure 2 This is a second schematic diagram of the structure of the vehicle seat headrest disclosed in the embodiments of this application; Figure 3 This is a schematic diagram of the side limiting mechanism disclosed in the embodiments of this application; Figure 4 This is a schematic diagram of the power assembly structure disclosed in the embodiments of this application; Figure 5 This is a schematic diagram illustrating the arrangement of the first and second side limiting mechanisms disclosed in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures: 100-Headrest frame, 110-First receiving groove, 120-Second receiving groove, 130-Guide groove, 140-Guide component, 141-Base plate, 142-Side plate; 200-Power assembly, 210-Drive source, 211-First bevel gear, 212-Mounting base, 220-Screw, 220a-First screw, 220b-Second screw, 221-Second bevel gear; 300-Side limiting mechanism, 300a-First side limiting mechanism, 300b-Second side limiting mechanism, 310-Transmission component, 311-First guide part, 320-Limiting component, 321-Limiting body, 3211-Second guide part, 322-Mating part, 3221-Mating groove, 323-Connecting part, 330-Driving inclined surface, 340-Elastic component; 400-Headrest body; 500 - Height adjustment rod, 510 - Slot. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0023] The vehicle seat headrest, vehicle seat, and vehicle provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0024] Please refer to Figures 1 to 5 As shown, this application embodiment provides a vehicle seat headrest, including: a headrest frame 100, a side limiting mechanism 300, and a headrest body 400.

[0025] Specifically, the side limiting mechanism 300 is disposed on the headrest frame 100, and at least a portion of the side limiting mechanism 300 is movable relative to the headrest frame 100.

[0026] Optionally, only a portion of the side limiting mechanism 300 may move relative to the headrest frame 100, or the entire side limiting mechanism 300 may move relative to the headrest frame 100. Furthermore, the side limiting mechanism 300 may move relative to the headrest frame 100 along the depth direction of the vehicle seat, for example, in the depth direction of the vehicle seat. Figure 1 The direction indicated by arrow A in the diagram. It should be noted that in this embodiment, the specific direction of movement of the side limiting mechanism 300 is not limited; it can be designed according to actual needs.

[0027] The headrest body 400 is wrapped around the headrest frame 100 and the side limiting mechanism 300, and the headrest body 400 has a certain degree of deformability. Optionally, the headrest body 400 includes a flexible outer cover and a filling material. The flexible outer cover is wrapped around the headrest frame 100 and the side limiting mechanism 300, and at least part of the filling material is filled between the flexible outer cover and the headrest frame 100. The filling material can, for example, undergo elastic deformation to buffer external impacts.

[0028] The headrest body 400 can protrude outward as the side limiting mechanism 300 moves to form a side limiting part. This side limiting part is used to limit the head of the driver or passenger in the width direction of the vehicle seat, for example, the width direction of the vehicle seat. Figure 1 The direction indicated by arrow B in the diagram. Furthermore, the side limiting part can be formed separately from the headrest body 400, or it can be formed jointly by the headrest body 400 and the side limiting mechanism 300, depending on the actual needs.

[0029] In this embodiment, a portion of the headrest body 400 protrudes outward as the side limiting mechanism 300 moves to form a side limiting part. This side limiting part is used to engage with the occupant's head in the width direction of the vehicle seat. By utilizing the side limiting part to engage with the occupant's head in the width direction of the vehicle seat, lateral support can be provided to the occupant's head, thereby limiting lateral head movement, improving neck comfort, and reducing the probability of neck injury.

[0030] Furthermore, in actual use, by controlling the distance the side limiting mechanism 300 moves, the amount of protrusion of the side limiting part can be controlled, thereby facilitating the diverse usage needs of different users and improving the applicability and comfort of the vehicle seat headrest.

[0031] In another embodiment, reference Figures 2 to 5 As shown, the vehicle seat headrest also includes a power assembly 200, and the side limiting mechanism 300 includes a transmission component 310 and a limiting component 320. The power assembly 200 is disposed on the headrest frame 100, and is connected to the transmission component 310, and is used to drive the transmission component 310 to move along the height direction of the vehicle seat, for example, the height direction of the vehicle seat is... Figure 4 The direction indicated by arrow C in the diagram is such that the transmission member 310 can cooperate with the limiting member 320 to drive the limiting member 320 to move, and a part of the headrest body 400 protrudes outward as the limiting member 320 moves.

[0032] In this embodiment, the transmission member 310 moves along the height direction of the vehicle seat, thereby driving the limiting member 320 to move. In this way, the operation of the transmission member 310 mainly occupies space in the height direction of the vehicle seat, reducing the space occupied in the width and depth directions of the vehicle seat. This facilitates control over the dimensions of the vehicle seat headrest in these directions. Furthermore, the vehicle seat headrest typically has sufficient space in the height direction to meet the movement requirements of the transmission member 310. Therefore, this arrangement of the transmission member 310 is relatively reasonable, which helps to reduce the size of the vehicle seat headrest.

[0033] In other embodiments, the power assembly 200 may also drive the transmission member 310 to move in a direction intersecting the height direction of the vehicle seat. Specifically, the power assembly 200 may drive the transmission member 310 to move in the width direction or the depth direction of the vehicle seat.

[0034] In another embodiment, reference Figures 2 to 5 As shown, the vehicle seat headrest also includes a power assembly 200, at least a portion of the side limiting mechanism 300, and at least a portion of the power assembly 200 are located within the headrest frame 100. With this configuration, at least a portion of the side limiting mechanism 300 and at least a portion of the power assembly 200 are hidden within the headrest frame 100. As a result, the side limiting mechanism 300, the headrest frame 100, and the power assembly 200 occupy less space overall, thereby reducing the volume of the vehicle seat headrest.

[0035] Optionally, the side limiting mechanism 300 may be located only partially within the headrest frame 100, or the entire side limiting mechanism 300 may be located within the headrest frame 100. Similarly, the power assembly 200 may be located only partially within the headrest frame 100, or the entire power assembly 200 may be located within the headrest frame 100.

[0036] In other embodiments, at least one of the side limiting mechanism 300 and the power assembly 200 may also be located outside the headrest frame 100.

[0037] In another embodiment, at least one of the transmission member 310 and the limiting member 320 is provided with a driving ramp 330, and the transmission member 310 cooperates with the limiting member 320 through the driving ramp 330 to drive the limiting member 320 to move.

[0038] Using the solution of this embodiment, the processing of the drive ramp 330 is relatively simple, and the setting of the drive ramp 330 does not increase the number of components involved in the vehicle seat headrest, thereby reducing the difficulty of processing and assembling the vehicle seat headrest.

[0039] Optionally, one of the transmission member 310 and the limiting member 320 is provided with a driving ramp 330, or both the transmission member 310 and the limiting member 320 are provided with a driving ramp 330.

[0040] Specifically, refer to Figure 3 and Figure 5As shown, a driving ramp 330 is provided only on the transmission member 310. The transmission member 310 contacts the limiting member 320 through the driving ramp 330 to drive the limiting member 320 to move. More specifically, the driving ramp 330 is inclined relative to the height direction of the vehicle seat and points from the top end of the vehicle seat to the bottom end of the vehicle seat. The distance between the driving ramp 330 and the limiting member 320 gradually decreases in the moving direction of the limiting member 320. For example, the direction from the top end of the vehicle seat to the bottom end of the vehicle seat is... Figure 5 The direction indicated by arrow D in the diagram represents the movement direction of the limiting member 320, for example, as follows. Figure 5 The direction indicated by the arrow E in the diagram. Also, refer to... Figure 5 As shown, the transmission component 310 is roughly triangular in shape.

[0041] In other embodiments, an intermediate component may also be provided between the transmission component 310 and the limiting component 320, and the transmission component 310 cooperates with the limiting component 320 through the intermediate component to drive the limiting component 320 to move.

[0042] In another embodiment, reference Figures 2 to 5 As shown, the power assembly 200 includes a drive source 210 and a screw 220 connected by a transmission. The drive source 210 is fixedly mounted on the headrest frame 100, and the screw 220 is rotatably mounted on the headrest frame 100. The drive source 210 is used to drive the screw 220 to rotate, and the transmission component 310 is threadedly engaged with the screw 220 to move along the height direction of the vehicle seat as the screw 220 rotates.

[0043] In this embodiment, the drive source 210 is used to drive the screw 220 to rotate. In this way, the rotation of the screw 220 is basically independent of human power, thereby saving manpower and improving the convenience of using the vehicle seat headrest.

[0044] Furthermore, in the scheme of this embodiment, the transmission component 310 and the screw 220 are threadedly engaged. The threaded engagement provides high transmission accuracy and smooth transmission, which facilitates precise control of the position of the transmission component 310 and improves the smoothness of the movement of the transmission component 310.

[0045] Optionally, the drive source 210 may be, for example, an electric motor or a motor. Additionally, both ends of the screw 220 may be rotatably mounted to the headrest frame 100, and the movement of the screw 220 in its own axial direction is restricted; the screw 220 is essentially unable to move along its own axial direction. Specifically, the axial direction of the screw 220 is the same as the height direction of the vehicle seat.

[0046] In actual use, the drive source 210 drives the screw 220 to rotate, thereby using the screw 220 to drive the transmission component 310 to move along the height direction of the vehicle seat, and then using the transmission component 310 to push the limit component 320 to move.

[0047] Optionally, the headrest frame 100 is provided with a first receiving groove 110 and a second receiving groove 120. The drive source 210 is mounted in the first receiving groove 110 via a mounting base 212, and the screw 220 is located in the second receiving groove 120, so that at least a portion of the power assembly 200 is located in the headrest frame 100.

[0048] In other embodiments, the power assembly 200 may not include the drive source 210, in which case the screw 220 may need to be manually rotated. Furthermore, the power assembly 200 may also not include the screw 220, meaning the transmission member 310 and the power assembly 200 do not have a threaded connection. In this case, the drive source 210 may directly drive the transmission member 310 to move along the height direction of the vehicle seat. In this configuration, the drive source 210 may be, for example, a linear telescopic mechanism.

[0049] In another embodiment, the transmission member 310 slides in conjunction with the headrest frame 100 in the height direction of the vehicle seat. With this configuration, the headrest frame 100 can guide the movement of the transmission member 310 in the height direction of the vehicle seat, thereby improving the smoothness of the movement of the transmission member 310.

[0050] Optionally, the headrest frame 100 is provided with the second receiving groove 120 mentioned above, and the transmission member 310 is located in the second receiving groove 120 so that at least a portion of the side limiting mechanism 300 is located in the headrest frame 100.

[0051] Further, refer to Figure 4 As shown, the side wall of the second receiving groove 120 is provided with a guide groove 130. The length direction of the guide groove 130 is the same as the height direction of the vehicle seat. The transmission member 310 is provided with a first guide part 311. The first guide part 311 is, for example, a first guide rod. A part of the first guide part 311 is located in the guide groove 130 and slides with the guide groove 130 along the length direction of the guide groove 130, thereby realizing the sliding engagement between the transmission member 310 and the headrest frame 100 in the height direction of the vehicle seat.

[0052] Furthermore, the transmission component 310 is provided with a first guide portion 311 on both opposite sides, and the first guide portion 311 corresponds one-to-one with the guide groove 130. Each first guide portion 311 slides in cooperation with the corresponding guide groove 130 in the height direction of the vehicle seat, so as to further improve the smoothness of the movement of the transmission component 310.

[0053] In other embodiments, the transmission member 310 and the headrest frame 100 may not have a sliding fit relationship in the height direction of the vehicle seat.

[0054] In another embodiment, reference Figures 2 to 5As shown, the limiting member 320 is provided with a mating groove 3221. When the transmission member 310 and the limiting member 320 are engaged, at least a portion of the transmission member 310 is located in the mating groove 3221 and is engaged with the mating groove 3221 in the width direction of the vehicle seat.

[0055] In this embodiment, when the transmission member 310 and the limiting member 320 are engaged, the transmission member 310 and the mating groove 3221 are engaged in a limiting fit in the width direction of the vehicle seat. In this way, the movement of both the transmission member 310 and the limiting member 320 in the width direction of the vehicle seat is restricted, thereby improving the reliability of the engagement between the transmission member 310 and the limiting member 320.

[0056] Optionally, only the transmission member 310 and the limiting member 320 are provided with the driving ramp 330 mentioned above, and the power assembly 200 includes the screw 220 mentioned above. In actual use, as the transmission member 310 moves toward the bottom of the vehicle seat, the transmission member 310 gradually extends into the mating groove 3221, and the transmission member 310 pushes the limiting member 320 away from the screw 220 mentioned above through the driving ramp 330, thereby realizing the movement of the limiting member 320.

[0057] Optionally, the mating groove 3221 is a through groove, which extends through the limiting member 320 in the height direction of the vehicle seat, and the opening of the mating groove 3221 faces the screw 220 mentioned above. When the transmission member 310 extends into the mating groove 3221, the transmission member 310 is located between the mating groove 3221 and the screw 220.

[0058] In other embodiments, the limiting member 320 may not have a mating groove 3221. In this configuration, when the transmission member 310 and the limiting member 320 are mated, the limiting member 320 and the transmission member 310 do not have a limiting mating relationship in the width direction of the vehicle seat, for example. In this case, the limiting member 320 is, for example, a limiting plate.

[0059] In another embodiment, reference Figures 2 to 5 As shown, the headrest frame 100 is provided with a guide member 140, and the limiting member 320 slides in conjunction with the guide member 140 in its own moving direction. With this arrangement, the guide member 140 can guide the movement of the limiting member 320, thereby improving the stability of the movement of the limiting member 320.

[0060] Optionally, refer to Figure 3 As shown, the limiting member 320 is provided with a second guide portion 3211, which is, for example, a second guide rod. The second guide portion 3211 passes through the guide member 140 and slides with the guide member 140 in the moving direction of the limiting member 320.

[0061] Furthermore, there are at least two second guide portions 3211, each of which slides with the guide member 140 in the moving direction of the limiting member 320, so as to further improve the smoothness of the movement of the limiting member 320.

[0062] In other embodiments, the headrest frame 100 may not have the guide member 140. In this case, the limiting member 320 and the guide member 140 do not have a sliding fit relationship in the moving direction of the limiting member 320.

[0063] In another embodiment, reference Figure 3 As shown, the limiting member 320 includes a limiting body 321 and a mating part 322 connected to each other. The mating part 322 is used to cooperate with the transmission member 310. A portion of the headrest body 400 protrudes outward as the limiting body 321 moves. At least a portion of the guide member 140 is spaced between the limiting body 321 and the mating part 322, and can be locked in a limiting cooperation with the limiting body 321 in the moving direction of the limiting body 321. The moving direction of the limiting body 321 is the moving direction of the limiting member 320. The limiting body 321, for example, contacts the headrest body 400 to drive the corresponding portion of the headrest body 400 to protrude outward.

[0064] In this embodiment, at least a portion of the guide member 140 is positioned between the limiting body 321 and the mating part 322. In this way, the limiting body 321 and the mating part 322 are located on opposite sides of the guide member 140, and the two are less likely to interfere with each other.

[0065] Furthermore, in actual use, when the guide member 140 engages with the limiting body 321 at its maximum position in the moving direction of the limiting body 321, it indicates that the limiting body 321 has moved to its limit position. In this state, the guide member 140 can restrict the limiting body 321 from continuing to move, thereby improving the stability of the limiting body 321. Specifically, when the side limiting mechanism 300 is in its initial state, the guide member 140, for example, engages with the limiting body 321 at its maximum position in the moving direction of the limiting body 321.

[0066] Optionally, refer to Figure 3 As shown, the guide member 140 includes a base plate 141 and two side plates 142. The two side plates 142 are respectively connected to both ends of the guide member 140 in the height direction of the vehicle seat, and are both located on the side of the base plate 141 facing the headrest frame 100. The guide member 140 is generally U-shaped. The base plate 141 is fixedly connected to the headrest frame 100 through the two side plates 142. The base plate 141 is separated between the limiting body 321 and the mating part 322. The second guide part 3211 mentioned above passes through the base plate 141 and slides with the base plate 141. The base plate 141 can be locked with the limiting body 321 in the moving direction of the limiting body 321.

[0067] Optionally, the mating part 322 may be provided with the mating groove 3221 mentioned above. The mating part 322 engages with the transmission member 310 through the mating groove 3221 mentioned above. Specifically, refer to Figure 3 As shown, the mating part 322 is roughly U-shaped.

[0068] Optionally, the side of the limiting body 321 away from the guide member 140 is, for example, an arc surface, and the curvature of this surface is, for example, consistent with the curvature of the headrest body 400 in its initial state, so as to better support the headrest body 400.

[0069] In other embodiments, a portion of the limiting body 321 may also pass through the guide member 140, that is, the guide member 140 is not blocked between the limiting body 321 and the mating part 322. In this case, there is no limiting mating relationship between the limiting body 321 and the guide member 140 in the moving direction of the limiting body 321.

[0070] In another embodiment, reference Figure 3 As shown, the limiting member 320 also includes a connecting portion 323. The limiting body 321 is connected to the mating portion 322 through the connecting portion 323. The connecting portion 323 movably passes through the guide member 140. The side limiting mechanism 300 also includes an elastic member 340. The elastic member 340 is sleeved on the connecting portion 323 and is used to drive the mating portion 322 to reset in the direction pointing from the limiting body 321 to the mating portion 322. The direction pointing from the limiting body 321 to the mating portion is, for example,... Figure 3 The direction indicated by the arrow F in the diagram.

[0071] In this embodiment, the elastic element 340 is sleeved on the connecting part 323. In this way, the installation position of the elastic element 340 can be quickly determined by means of the connecting part 323. Furthermore, when the elastic element 340 is sleeved on the connecting part 323, the connecting part 323 can restrict the shaking of the elastic element 340, thereby improving the stability of the elastic element 340.

[0072] Furthermore, in actual use, the transmission component 310 pushes the mating part 322 to move in the direction of the mating part 322 pointing to the limiting body 321 to form a side limiting part. After the elastic component 340 is provided, the elastic component 340 can automatically drive the mating part 322 to reset in the direction of the limiting body 321 pointing to the mating part 322, so that the vehicle seat headrest can automatically return to the initial state. In this way, the reset of the vehicle seat headrest basically does not require manual intervention, thus saving manpower.

[0073] Optionally, the elastic element 340 is, for example, a spring, and the connecting part 323 is, for example, a connecting rod.

[0074] Furthermore, the elastic element 340 is located between the mating part 322 and the base plate 141 of the guide element 140 mentioned above. With this arrangement, the setting of the elastic element 340 will not have much impact on the upper limit fit between the limiting body 321 and the base plate 141 in the moving direction of the limiting body 321, thereby facilitating a good fit between the limiting body 321 and the base plate 141.

[0075] In other embodiments, the side limiting mechanism 300 may not include the elastic element 340, or the side limiting mechanism 300 may include the elastic element 340, but the elastic element 340 is arranged side by side on one side of the connecting portion 323.

[0076] In another embodiment, the number of side limiting mechanisms 300 is at least two, including a first side limiting mechanism 300a and a second side limiting mechanism 300b, with the side limiting portion corresponding to the first side limiting mechanism 300a and the side limiting portion corresponding to the second side limiting mechanism 300b being spaced apart to form a accommodating space for accommodating the head of a driver or passenger.

[0077] In this embodiment, the first side limiting mechanism 300a and the second side limiting mechanism 300b each correspond to a side limiting part, and the head of the driver or passenger is located between the two side limiting parts. In this way, the side limiting part corresponding to the first side limiting mechanism 300a and the side limiting part corresponding to the second side limiting mechanism 300b can restrict the bidirectional swing of the driver or passenger's head, thereby further improving the comfort of the driver or passenger's neck and further reducing the probability of neck injury.

[0078] Optionally, when the vehicle seat headrest has a accommodating space, the vehicle seat headrest is roughly U-shaped.

[0079] Optionally, refer to Figures 2 to 5As shown, the power assembly 200 includes the drive source 210 and screw 220 mentioned above, and the number of screws 220 is at least two, including a first screw 220a and a second screw 220b. The first screw 220a corresponds to the first side limiting mechanism 300a, and the second screw 220b corresponds to the second side limiting mechanism 300b. The drive source 210 has a first output end and a second output end. Both the first output end and the second output end are provided with a first bevel gear 211. Both the first screw 220a and the second screw 220b are provided with a second bevel gear 221. The axes of the first bevel gear 211 and the second bevel gear 221 are perpendicular to each other and correspond one-to-one. The first output end drives the first screw 220a to rotate in sequence through the corresponding first bevel gear 211 and the second bevel gear 221, and the second output end drives the second screw 220b to rotate in sequence through the corresponding first bevel gear 211 and the second bevel gear 221. In this configuration, the first screw 220a and the second screw 220b are driven by the same drive source 210, which simplifies the structure of the vehicle seat headrest and reduces the cost of the vehicle seat headrest.

[0080] Furthermore, in order to reduce the volume of the vehicle seat headrest, the first screw 220a, the second screw 220b, the first bevel gear 211 and the second bevel gear 221 are all located in the second receiving groove 120 mentioned above, and the first screw 220a and the second screw 220b each correspond to one second receiving groove 120. Correspondingly, the drive source 210 is located in the first receiving groove 110, and the first output end and the second output end of the drive source 210 extend into the two second receiving grooves 120 respectively.

[0081] Specifically, the drive source 210 is, for example, a dual-axis motor.

[0082] In other embodiments, the number of side limiting mechanisms 300 may also be one.

[0083] This application embodiment also provides a vehicle seat, which includes a seat body and the vehicle seat headrest described above, with the vehicle seat headrest disposed on the seat body. This vehicle seat includes the vehicle seat headrest described above, and has the same beneficial effects as the vehicle seat headrest described above, which will not be repeated here.

[0084] Optionally, refer to Figure 1 As shown, the vehicle seat also includes a height adjustment lever 500. One end of the height adjustment lever 500 is connected to the headrest frame 100 of the vehicle seat headrest. The height adjustment lever 500 has at least two slots 510 spaced apart along its axial direction. The seat body has a locking part that can selectively engage with one of the slots 510 to adjust the height of the vehicle seat headrest. This configuration can meet the different height requirements of different users for the vehicle seat headrest, thereby improving the applicability and comfort of the vehicle seat.

[0085] Further, refer to Figure 1 As shown, in order to improve the stability of the vehicle seat headrest, there are at least two height adjustment rods 500, and each height adjustment rod 500 is arranged at intervals along the width direction of the vehicle seat.

[0086] This application also provides a vehicle comprising a body and the vehicle seat described above, the vehicle seat being installed within the body. This vehicle includes the vehicle seat described above, and has the same beneficial effects as the vehicle seat described above, which will not be repeated here.

[0087] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A vehicle seat headrest, characterized in that, include: A headrest frame (100) and a side limiting mechanism (300), the side limiting mechanism (300) being disposed on the headrest frame (100), and at least a portion of the side limiting mechanism (300) being movable relative to the headrest frame (100); The headrest body (400) is wrapped around the headrest frame (100) and the side limiting mechanism (300); The headrest body (400) can protrude outward as the side limiting mechanism (300) moves to form a side limiting part, which is used to limit the head of the driver or passenger in the width direction of the vehicle seat.

2. The vehicle seat headrest according to claim 1, characterized in that, The vehicle seat headrest also includes a power assembly (200). The side limiting mechanism (300) includes a transmission member (310) and a limiting member (320). The power component (200) is disposed on the headrest frame (100). The power component (200) is connected to the transmission member (310) and is used to drive the transmission member (310) to move along the height direction of the vehicle seat. The transmission member (310) can cooperate with the limiting member (320) to drive the limiting member (320) to move. A portion of the headrest body (400) protrudes outward as the limiting member (320) moves. And / or, at least a portion of the side limiting mechanism (300) and at least a portion of the power component (200) are located within the headrest frame (100).

3. The vehicle seat headrest according to claim 2, characterized in that, At least one of the transmission member (310) and the limiting member (320) is provided with a driving ramp (330), and the transmission member (310) cooperates with the limiting member (320) through the driving ramp (330) to drive the limiting member (320) to move; And / or, the power assembly (200) includes a drive source (210) and a screw (220) connected by a transmission. The drive source (210) is fixedly disposed on the headrest frame (100), and the screw (220) is rotatably disposed on the headrest frame (100). The drive source (210) is used to drive the screw (220) to rotate, and the transmission member (310) is threadedly engaged with the screw (220) to move along the height direction of the vehicle seat as the screw (220) rotates.

4. The vehicle seat headrest according to claim 2, characterized in that, The transmission component (310) and the headrest frame (100) slide in the height direction of the vehicle seat; And / or, the limiting member (320) is provided with a mating groove (3221), and when the transmission member (310) is engaged with the limiting member (320), at least a portion of the transmission member (310) is located in the mating groove (3221) and is engaged with the mating groove (3221) in the width direction of the vehicle seat.

5. The vehicle seat headrest according to claim 2, characterized in that, The headrest frame (100) is provided with a guide (140), and the limiting member (320) and the guide (140) slide in the direction of their own movement.

6. The vehicle seat headrest according to claim 5, characterized in that, The limiting member (320) includes a limiting body (321) and a mating part (322) connected to each other. The mating part (322) is used to cooperate with the transmission member (310). A portion of the headrest body (400) protrudes outward as the limiting body (321) moves. At least a portion of the guide member (140) is spaced between the limiting body (321) and the mating part (322), and can be limited to cooperate with the limiting body (321) in the direction of movement of the limiting body (321).

7. The vehicle seat headrest according to claim 6, characterized in that, The limiting member (320) further includes a connecting part (323), the limiting body (321) is connected to the mating part (322) through the connecting part (323), the connecting part (323) movably passes through the guide member (140), the side limiting mechanism (300) further includes an elastic member (340), the elastic member (340) is sleeved on the connecting part (323) and is used to drive the mating part (322) to reset in the direction from the limiting body (321) to the mating part (322).

8. The vehicle seat headrest according to claim 1, characterized in that, The number of the side limiting mechanisms (300) is at least two, including a first side limiting mechanism (300a) and a second side limiting mechanism (300b), wherein the side limiting part corresponding to the first side limiting mechanism (300a) and the side limiting part corresponding to the second side limiting mechanism (300b) are spaced apart to form a receiving space for accommodating the head of the driver or passenger between them.

9. A vehicle seat, characterized in that, It includes a seat body and a vehicle seat headrest as described in any one of claims 1-8, wherein the vehicle seat headrest is disposed on the seat body.

10. A vehicle, characterized in that, It includes a vehicle body and the vehicle seat as described in claim 9, wherein the vehicle seat is installed within the vehicle body.

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