An adjustable headrest and vehicle seat

Abstract

An adjustable headrest and a vehicle seat, the adjustable headrest comprising a headrest body and an adjusting mechanism, the adjusting mechanism comprising a first support, a second support, a first guide component, a first driving component, a second guide component, a second driving component and an elastic gap elimination component, the first guide component comprising a first guide section extending in an up-down direction, the first support being slidingly assembled to the first guide section, the first driving component being configured to drive the first support, the second support being mounted to the second guide component, the second support being connected to the headrest body, the second guide component comprising a second guide section extending in a front-rear direction, the first support being further slidingly assembled to the second guide section, the second driving component being configured to drive the second support, the elastic gap elimination component being arranged between the first guide section and the first support and between the second guide section and the first support.

Description

Technical Field

[0001] This utility model relates to the field of vehicle seat technology, specifically to an adjustable headrest and vehicle seat. Background Technology

[0002] Headrests are an important component of vehicle seats, serving to support the head and alleviate fatigue. Some vehicle seats in this field feature adjustable headrests, allowing for position adjustment. However, the drive motors for these headrests are often located inside the seat back, which can somewhat limit the expansion of functional modules within the backrest. Furthermore, these headrests generally suffer from poor stability, making them unsuitable for specific usage requirements.

[0003] Therefore, how to provide a solution that can at least overcome or alleviate some of the above-mentioned defects remains a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable headrest and vehicle seat, wherein the adjustable headrest has relatively high stability during the adjustment process and is not prone to shaking, thereby improving the user experience.

[0005] To solve the above-mentioned technical problems, this utility model provides an adjustable headrest, including a headrest body and an adjustment mechanism. The adjustment mechanism includes a first support, a second support, a first guide component, a first drive component, a second guide component, a second drive component, and an elastic gap-eliminating component. The first guide component includes a first guide segment extending in a vertical direction. The first support is slidably mounted on the first guide segment. The first drive component drives the first support. The second support is mounted on the second guide component and connected to the headrest body. The second guide component includes a second guide segment extending in a front-rear direction. The first support is also slidably mounted on the second guide segment. The second drive component drives the second support. The elastic gap-eliminating component is disposed between the first guide segment and the first support, and between the second guide segment and the first support.

[0006] Using the above solution, under the action of the second driving component, the second support can move in the front-to-back direction, thereby driving the headrest body to move in the front-to-back direction; under the action of the first driving component, the first support can drive the second support to move together in the up-down direction, thereby driving the headrest body to move in the up-down direction. Thus, the adjustable headrest provided in this embodiment of the invention can achieve displacement of the headrest body in four directions: up, down, front, and back. That is, the headrest body in this embodiment of the invention has four degrees of freedom for adjustment, which can better meet the adjustment needs of the headrest body and improve the user experience.

[0007] Furthermore, this embodiment of the invention also includes an elastic gap-reducing component, which is disposed between the first guide section and the first support, and also between the second guide section and the first support. The elastic gap-reducing component possesses a certain elastic deformation capability, enabling it to fill and reduce the gaps between the first guide section and the first support, as well as the gaps between the second guide section and the first support. This makes the vertical displacement of the first support relative to the first guide section and the forward / backward displacement of the second guide section relative to the first support more stable, thereby reducing the possibility of the headrest body wobbling during position adjustment, better meeting usage requirements, and improving the user experience.

[0008] Optionally, the first support is provided with a first guide hole and a second guide hole, the first guide segment is inserted into the first guide hole, and the second guide segment is inserted into the second guide hole; either the first guide hole or the second guide hole includes a base hole portion and an enlarged hole portion, the enlarged hole portion is located in a local area on the outer periphery of the base hole portion, and the elastic gap elimination component is provided in the enlarged hole portion.

[0009] Optionally, the number of first guide holes that are inserted into a first guide segment is at least two, and in each first guide hole, at least two of the first guide holes have different circumferential positions of the enlarged portion; and / or, the number of second guide holes that are inserted into a second guide segment is at least two, and in each second guide hole, at least two of the second guide holes have different circumferential positions of the enlarged portion.

[0010] Optionally, the elastic gap-eliminating component has a hollow hole.

[0011] Optionally, the elastic gap-eliminating component is provided with a snap-fit ​​portion, and the elastic gap-eliminating component is snap-fitted to the first support through the snap-fit ​​portion; and / or, the first support, the second support, the first guide segment, the first driving component, the second guide component, and the second driving component are all disposed in the headrest body.

[0012] Optionally, the first driving component includes a first driving component and a first lead screw, the first driving component being used to drive the first lead screw to rotate, and the first driving component being mounted on the first support; the adjusting mechanism further includes a third support, the third support being mounted on the first guide component, and the first lead screw and the third support being threadedly connected.

[0013] Optionally, the second driving component includes a second driving component and a second lead screw. The second driving component is used to drive the second lead screw to rotate. The second driving component is mounted on the second support, and the second lead screw and the first support are threadedly connected.

[0014] Optionally, at least one of the first support and the third support is integrally formed with a threaded hole; or, at least one of the first support and the third support is fitted with a threaded component, the threaded component having a threaded hole.

[0015] Optionally, at least one of the first lead screw and the second lead screw is provided with a limiting member.

[0016] This utility model also provides a vehicle seat, including a seat body and a headrest, wherein the headrest is installed on the seat body and the headrest is the aforementioned adjustable headrest. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an adjustable headrest provided in an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A structural diagram from another perspective;

[0019] Figure 3 An exploded view of an adjustable headrest provided in an embodiment of this utility model;

[0020] Figure 4 An exploded view of the adjustment mechanism;

[0021] Figure 5 This is a schematic diagram of the structure of the first support;

[0022] Figure 6 This is a schematic diagram of the structure of the elastic gap-eliminating component;

[0023] Figure 7 This is a schematic diagram of the adjustment mechanism when the headrest body is in its lowest and final positions;

[0024] Figure 8 for Figure 7 Cross-sectional view;

[0025] Figure 9 This is a schematic diagram of the adjustment mechanism when the headrest body is in its highest and lowest positions;

[0026] Figure 10 This is a schematic diagram of the adjustment mechanism when the headrest body is in its lowest and final positions;

[0027] Figure 11 This is a schematic diagram of the adjustment mechanism when the headrest body is in its lowest and forwardmost positions.

[0028] Figure label:

[0029] 1000 - Headrest body; 1100 - First occipital region; 1200 - Second occipital region;

[0030] 2000 - Adjustment mechanism; 2100 - First support; 2110 - First guide hole; 2111 - First base hole section; 2112 - First reaming section; 2120 - Second guide hole; 2121 - Second base hole section; 2122 - Second reaming section; 2130 - Threaded component; 2200 - Second support; 2300 - First guide component; 2310 - First guide section; 2320 - Mounting section; 2330 - Adapter section; 2400 - First drive component; 2410 - First driving component; 2420-First lead screw; 2421-First limiting part; 2430-Connecting frame; 2500-Second guide component; 2510-Second guide section; 2520-Reinforcing plate; 2600-Second driving component; 2610-Second driving component; 2620-Second lead screw; 2621-Second limiting part; 2700-Elastic gap-eliminating component; 2710-Body part; 2711-Hollow hole; 2720-Snap-fit ​​part; 2800-Third support. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] In the description of the embodiments of this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," and "third" may explicitly or implicitly include one or more of that feature.

[0033] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0034] In this embodiment of the utility model, the front-to-back direction refers to the length direction of the vehicle, wherein the front direction is the front and the rear direction is the rear; the up-to-down direction refers to the height direction of the vehicle, with the vehicle's bearing surface (such as the ground) as a reference, the direction relatively closer to the bearing surface is down, and the direction relatively farther away from the bearing surface is up; in the bearing surface, the direction perpendicular to the front-to-back direction is the left-to-right direction.

[0035] In the description of embodiments of this utility model, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0036] In the description of this utility model embodiment, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0037] Please refer to Figures 1-6 , Figure 1 This is a schematic diagram of the structure of an adjustable headrest provided in an embodiment of the present invention; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 An exploded view of an adjustable headrest provided in an embodiment of this utility model; Figure 4 An exploded view of the adjustment mechanism; Figure 5 This is a schematic diagram of the structure of the first support; Figure 6 This is a schematic diagram of the structure of an elastic gap-eliminating component.

[0038] like Figures 1-3 As shown, this utility model embodiment provides an adjustable headrest, including a headrest body 1000 and an adjustment mechanism 2000.

[0039] The headrest body 1000 is the base of the adjustable headrest, primarily used to fulfill the headrest's function. Combined with... Figure 3 The headrest body 1000 can be a split structure, including a first headrest portion 1100 and a second headrest portion 1200 arranged in a front-to-back direction. The first headrest portion 1100 is located on the front side and is used to directly contact the head of the occupant in the vehicle, while the second headrest portion 1200 is located on the rear side. By splitting the headrest body 1000, the adjustment mechanism 2000 can be easily installed and fixed in the headrest body 1000.

[0040] It should be understood that the first pillow portion 1100 and the second pillow portion 1200 described above can also be arranged in the left-right direction, or the first pillow portion 1100 and the second pillow portion 1200 can also be arranged in the up-down direction. In short, as long as the headrest body 1000 is set as a split structure to facilitate the assembly and disassembly of the adjustment mechanism 2000, it is acceptable.

[0041] After the adjustment mechanism 2000 and the headrest body 1000 are installed, the first pillow part 1100 and the second pillow part 1200 can be assembled. The specific assembly process can be screw connection, snap-fit, riveting, etc., which is not limited here, as long as it can meet the requirements of use.

[0042] The adjustment mechanism 2000 includes a first support 2100, a second support 2200, a first guide component 2300, a first drive component 2400, a second guide component 2500, and a second drive component 2600.

[0043] The first guide component 2300 includes a first guide segment 2310 extending in a vertical direction. A first support 2100 is slidably mounted on the first guide segment 2310. A first drive component 2400 drives the first support 2100 to move vertically along the first guide segment 2310. The number of first guide segments 2310 can be at least two, and each first guide segment 2310 can be arranged at intervals in a left-right or front-back direction to improve the stability of the first support 2100 sliding in the vertical direction.

[0044] The second support 2200 is installed on the second guide component 2500. Specific installation methods include riveting, screw connection, snap-fit, etc. In short, any method that allows the second support 2200 to be installed and fixed on the second guide component 2500 is acceptable. The second support 2200 is also connected to the headrest body 1000. Specifically, the second support 2200 can be connected to at least one of the aforementioned first pillow portion 1100 and second pillow portion 1200. Specific connection methods include riveting, screw connection, snap-fit, etc. In short, any method that allows the second support 2200 to be connected and fixed to the headrest body 1000 is acceptable.

[0045] The second guide component 2500 includes a second guide segment 2510 extending in the front-rear direction. The first support 2100 is also slidably fitted to the second guide segment 2510. The number of second guide segments 2510 can be at least two, and each second guide segment 2510 can be arranged at intervals in the left-right or up-down directions to improve the stability of the second support 2200 sliding in the front-rear direction. Figure 3 and Figure 4 The second guide component 2500 may also include a reinforcing plate 2520, which may be connected to each of the second guide sections 2510 to improve the overall structural stability of the second guide component 2500.

[0046] The second driving component 2600 is used to drive the second support 2200 to cause the second support 2200 to move relative to the first support 2100 in the front-rear direction.

[0047] Using the above scheme, under the action of the second driving component 2600, the second support 2200 can move in the front-back direction, which can drive the headrest body 1000 to move in the front-back direction; under the action of the first driving component 2400, the first support 2100 can drive the second support 2200 to move together in the up-down direction, which can then drive the headrest body 1000 to move in the up-down direction. Thus, the adjustable headrest provided in this embodiment of the present invention can realize the displacement of the headrest body 1000 in four directions: up, down, front, and back. That is, the headrest body 1000 in this embodiment of the present invention can have four degrees of freedom for adjustment, which can better meet the adjustment needs of the headrest body 1000, thereby improving the user experience.

[0048] In this embodiment of the invention, the first support 2100, the second support 2200, the first guide section 2310, the first drive component 2400, the second guide component 2500, and the second drive component 2600 are all disposed within the headrest body 1000. This allows for the integrated assembly of the adjustment mechanism 2000 within the headrest body 1000, reducing encroachment on space in other parts of the vehicle seat, such as the internal space of the seat back. This minimizes impact on the functional expansion of other parts of the vehicle seat. In other words, using the adjustable headrest provided in this embodiment is advantageous for expanding the functional versatility of the vehicle seat.

[0049] Furthermore, in this embodiment of the invention, the adjusting mechanism 2000 also includes an elastic gap-eliminating component 2700.

[0050] The elastic gap-reducing component 2700 is disposed between the first guide section 2310 and the first support 2100, and is also disposed between the second guide section 2510 and the first support 2100. It is understood that the elastic gap-reducing component 2700 has a certain elastic deformation capacity, and can fill and reduce the gap between the first guide section 2310 and the first support 2100, as well as the gap between the second guide section 2510 and the first support 2100. This makes the vertical displacement of the first support 2100 relative to the first guide section 2310 and the forward and backward displacement of the second guide section 2510 relative to the first support 2100 more stable, thereby reducing the possibility of the headrest body 1000 shaking during position adjustment, better meeting usage requirements, and improving the user experience.

[0051] In some implementations, such as Figure 5 As shown, the first support 2100 may be provided with a first guide hole 2110 and a second guide hole 2120. The first guide hole 2110 can be used to insert and cooperate with the first guide segment 2310, and the second guide hole 2120 can be used to insert and cooperate with the second guide segment 2510.

[0052] At least one of the first guide hole 2110 and the second guide hole 2120 includes a base hole portion and a reamed hole portion. For ease of description, the base hole portion and the reamed hole portion of the first guide hole 2110 may be referred to as the first base hole portion 2111 and the first reamed hole portion 2112, respectively, and the base hole portion and the reamed hole portion of the second guide hole 2120 may be referred to as the second base hole portion 2121 and the second reamed hole portion 2122, respectively.

[0053] The first enlarged hole portion 2112 can be located in a local area on the outer periphery of the first base hole portion 2111, and the first enlarged hole portion 2112 and the first base hole portion 2111 can be connected. The elastic gap-reducing component 2700 can be disposed in the first enlarged hole portion 2112. With this configuration, the elastic gap-reducing component 2700 is only located in a local area of ​​the first guide segment 2310 in the circumferential direction, which can reduce the contact area between the elastic gap-reducing component 2700 and the first guide segment 2310, thereby reducing the sliding resistance when the first support 2100 slides along the first guide segment 2310 in the vertical direction, and improving the smoothness of the sliding of the first support 2100 along the first guide segment 2310.

[0054] Similarly, the second enlarged hole portion 2122 can also be located in a local area on the outer periphery of the second base hole portion 2121, and the second enlarged hole portion 2122 and the second base hole portion 2121 can be connected. The elastic gap-reducing component 2700 can also be disposed in the second enlarged hole portion 2122. With this arrangement, the elastic gap-reducing component 2700 is only located in a local area of ​​the second guide section 2510 in the circumferential direction, which can reduce the contact area between the elastic gap-reducing component 2700 and the second guide section 2510, thereby reducing the sliding resistance when the first support 2100 slides relative to the second guide section 2510 in the front-back direction, and improving the smoothness of sliding of the first support 2100 relative to the second guide section 2510.

[0055] Here, the present invention does not limit the distribution range of the first enlarged hole portion 2112 in the circumferential direction of the first base hole portion 2111. Similarly, the present invention does not limit the distribution range of the second enlarged hole portion 2122 in the circumferential direction of the second base hole portion 2121. In practical applications, those skilled in the art can make the settings according to specific needs.

[0056] In some implementations, the number of first guide holes 2110 that are inserted into and cooperate with a first guide segment 2310 can be at least two, and each first guide hole 2110 can be arranged at intervals along the axial direction of the first guide segment 2310.

[0057] In each of the first guide holes 2110, at least two of the first guide holes 2110 may have their first enlarged portions 2112 positioned differently in the circumferential direction. Thus, a first guide segment 2310 may have at least two axially arranged elastic gap-reducing components 2700, and these at least two elastic gap-reducing components 2700 may be distributed at different positions in the circumferential direction of the first guide segment 2310, so as to abut against the first guide segment 2310 in different directions, thereby greatly improving the stability of the relative sliding between the first guide segment 2310 and the first support 2100. For example, in two first guide holes 2110 that are inserted into a first guide segment 2310, the first enlarged portion 2112 of one first guide hole 2110 may be located on one side of its first base hole portion 2111 in the front-back direction, and the first enlarged portion 2112 of the other first guide hole 2110 may be located on one side of its first base hole portion 2111 in the left-right direction, so that elastic gap-eliminating members 2700 are provided in the front-back direction and the left-right direction respectively to abut against the first guide segment 2310.

[0058] In some implementations, the number of second guide holes 2120 that are inserted into a second guide segment 2510 can be at least two, and each second guide hole 2120 can be arranged at intervals along the axial direction of the second guide segment 2510.

[0059] In each of the second guide holes 2120, at least two of the second guide holes 2120 may have their second enlarged portions 2122 positioned differently in the circumferential direction. Thus, a second guide segment 2510 may have at least two axially arranged elastic gap-reducing components 2700, and these at least two elastic gap-reducing components 2700 may be distributed at different positions in the circumferential direction of the second guide segment 2510, so as to abut against the second guide segment 2510 at different positions, thereby greatly improving the stability of the relative sliding between the second guide segment 2510 and the first support 2100. For example, in two second guide holes 2120 that are inserted into a second guide segment 2510, the second enlarged portion 2122 of one second guide hole 2120 may be located on the side of its second base hole portion 2121 in the vertical direction, and the second enlarged portion 2122 of the other second guide hole 2120 may be located on the side of its second base hole portion 2121 in the horizontal direction, so that elastic gap-eliminating members 2700 are provided in the vertical direction and the horizontal direction respectively to abut against the second guide segment 2510.

[0060] In some implementations, such as Figure 6 As shown, the elastic gap-eliminating component 2700 may have a hollow hole 2711. The elastic gap-eliminating component 2700 can achieve its own extrusion deformation and elastic recovery through this hollow hole 2711.

[0061] In some implementations, the elastic gap-eliminating component 2700 may be provided with a snap-fit ​​part 2720. The number of snap-fit ​​parts 2720 may be one or at least two, which is not limited here. Specifically, the elastic gap-eliminating component 2700 may be snap-fitted to the first support 2100 through the snap-fit ​​part 2720. In this way, the installation and disassembly of the elastic gap-eliminating component 2700 and the first support 2100 can be relatively easy.

[0062] Combination Figure 6 The elastic gap-eliminating component 2700 may include a body portion 2710, which may be provided with the aforementioned hollow hole 2711, and the snap-fit ​​portion 2720 may be formed on the outer wall surface of the body portion 2710.

[0063] In the above implementations, both the first guide hole 2110 and the second guide hole 2120 may include only one enlarged portion. Alternatively, at least one of the first guide hole 2110 and the second guide hole 2120 may be provided with at least two enlarged portions; taking the first guide hole 2110 as an example, it may be provided with at least two first enlarged portions 2112, and each first enlarged portion 2112 may be spaced apart around the circumference of the first base hole portion 2111.

[0064] In addition, in some other implementations of this utility model, the elastic gap-eliminating component 2700 may be distributed in all areas of the first guide section 2310 in the circumferential direction. Similarly, the elastic gap-eliminating component 2700 may be distributed in all areas of the second guide section 2510 in the circumferential direction. In this case, the elastic gap-eliminating component 2700 may be in the form of a ring and arranged around the first guide section 2310 and the second guide section 2510.

[0065] In some implementations, the first drive component 2400 may include a first drive component 2410 and a first lead screw 2420.

[0066] The first driving component 2410 can be a motor, which can be connected to the first lead screw 2420 to drive the first lead screw 2420 to rotate.

[0067] The first drive component 2410 can be mounted on the first support 2100. (Combined) Figure 3 and Figure 4The first driving component 2400 may further include a connecting frame 2430. The first driving component 2410 may first be connected to the connecting frame 2430, for example, by screw connection or riveting. Then, the connecting frame 2430 is connected to the first support 2100. That is, the first driving component 2410 and the first support 2100 may be indirectly connected. Alternatively, the first driving component 2410 and the first support 2100 may also be directly connected, which is also feasible.

[0068] The adjustment mechanism 2000 may also include a third support 2800, which is installed on the first guide component 2300. Specifically, it may be installed on the first guide section 2310 by means of screw connection, riveting or other connection methods.

[0069] The first lead screw 2420 can be threadedly connected to the third support 2800. In this way, when the first drive component 2410 is started, the first drive component 2410 can drive the first lead screw 2420 to rotate, and then through the threaded engagement between the first lead screw 2420 and the third support 2800, the first support 2100 can be driven to make linear displacement along the first guide section 2310.

[0070] The third support 2800 can be directly provided with a threaded hole for threaded connection with the first lead screw 2420. Alternatively, the third support 2800 can also be equipped with a threaded component 2130 by means of screw connection, welding, riveting, snap-fit, etc., which is provided with a threaded hole, so that it can also be threadedly connected with the first lead screw 2420.

[0071] It should be understood that, in addition to the above-described technical solutions, in some other implementations of this utility model, the first driving component 2400 can also adopt other structural forms or installation methods. In short, as long as the first driving component 2400 can drive the first support 2100 to perform linear displacement, it is acceptable. For example, the first driving component 2410 can also be installed on the third support 2800, in which case the first lead screw 2420 can be threadedly connected to the first support 2100. Alternatively, the first driving component 2400 can also directly adopt a linear cylinder, linear hydraulic cylinder, or other driving element capable of directly outputting linear displacement, which is also feasible.

[0072] In some implementations, the second drive component 2600 may include a second drive component 2610 and a second lead screw 2620.

[0073] The second drive component 2610 can also be a motor, which can be connected to the second lead screw 2620 to drive the second lead screw 2620 to rotate.

[0074] The second drive component 2610 can be mounted on the second support 2200. Similar to the first drive component 2410, the second drive component 2610 and the second support 2200 can also be connected and fixed by a direct connection or an indirect connection, as long as a reliable connection between the second drive component 2610 and the second support 2200 can be achieved.

[0075] The second lead screw 2620 can be threadedly connected to the first support 2100. In this way, when the second drive component 2610 is activated, the second drive component 2610 can drive the second lead screw 2620 to rotate, and then through the threaded engagement between the second lead screw 2620 and the first support 2100, the second support 2200 can be driven to move relative to the first support 2100 in the front-back direction.

[0076] The first support 2100 can be directly provided with a threaded hole for threaded connection with the second lead screw 2620. Alternatively, the first support 2100 can also be equipped with a threaded component 2130 by means of screw connection, welding, riveting, snap-fit, etc., which has a threaded hole, so that it can also be threadedly connected with the second lead screw 2620.

[0077] It should be understood that, in addition to the above-described technical solutions, in some other implementations of this utility model, the second driving component 2600 can also adopt other structural forms or installation methods. In short, as long as the second driving component 2600 can drive the second support 2200 to perform linear displacement, it is acceptable. For example, the second driving component 2610 can also be installed on the first support 2100, in which case the second lead screw 2620 can be threadedly connected to the second support 2200. Alternatively, the second driving component 2600 can also directly adopt a linear cylinder, linear hydraulic cylinder, or other driving element capable of directly outputting linear displacement, which is also feasible.

[0078] In some implementations, such as Figure 3 and Figure 4 As shown, the first guide component 2300 can be a bent rod, including a first guide section 2310, a transition section 2330, and a mounting section 2320 connected in sequence. The first guide section 2310 and the transition section 2330 can be arranged at an angle, such as 90 degrees. The transition section 2330 and the mounting section 2320 can also be arranged at an angle, such as 90 degrees.

[0079] The transition section 2330 can limit the first support 2100 to prevent the first support 2100 from slipping off the first guide member 2300. At least a portion of the mounting section 2320 can extend out of the headrest body 1000. The mounting section 2320 is used for mounting and fixing the adjustable headrest provided in this embodiment of the present invention to the seat body. The specific mounting method is not limited here.

[0080] In the first guide component 2300, at least the mounting section 2320 can be a hollow tube, the interior of which can be used for wiring to improve the compactness of the structure.

[0081] Please refer to Figures 7-11 , Figure 7 This is a schematic diagram of the adjustment mechanism when the headrest body is in its lowest and final positions; Figure 8 for Figure 7 Cross-sectional view; Figure 9 This is a schematic diagram of the adjustment mechanism when the headrest body is in its highest and lowest positions; Figure 10 This is a schematic diagram of the adjustment mechanism when the headrest body is in its lowest and final positions; Figure 11 This is a schematic diagram of the adjustment mechanism when the headrest body is in its lowest and forwardmost positions.

[0082] The following embodiments of this utility model will be combined with Figures 7-11 The adjustment process of the adjustable headrest provided in this embodiment of the present invention will be briefly described.

[0083] like Figure 7 and Figure 8 As shown, the headrest body 1000 can be in the lowest position in the vertical direction and the latest position in the front-back direction.

[0084] The first lead screw 2420 may be provided with a first limiting part 2421, which can abut against the third support 2800 in the vertical direction to limit the headrest body 1000 at its lowest position. It should be understood that, in addition to the first limiting part 2421, the present invention embodiment may also limit the first support 2100 by setting a limiting feature on the first guide member 2300. For example, the aforementioned transition section 2330 may abut against the first support 2100 to limit the lowest position of the headrest body 1000; or, a Hall sensor or the like may be used to monitor the rotation of the first drive member 2410 to limit the vertical movement of the headrest body 1000.

[0085] like Figure 9As shown, under the action of the first driving component 2400, the first support 2100 can move upward along the first guide section 2310 until it comes into contact with the third support 2800. At this time, the headrest body 1000 can be at its highest position in the vertical direction.

[0086] like Figure 10 As shown, the headrest body 1000 can be in the lowest position in the vertical direction and the latest position in the front-back direction.

[0087] The second lead screw 2620 may be provided with a second limiting part 2621, which can abut against the first support 2100 in the front-rear direction to limit the headrest body 1000 at its final position. It should be understood that, in addition to the second limiting part 2621, the present invention embodiment may also provide a limiting feature on the second guide section 2510 to abut against the first support 2100, thereby limiting the final position of the second support 2200 in the front-rear direction; or, a Hall sensor or the like may be provided to monitor the rotation of the second drive component 2610, thereby limiting the movement position of the headrest body 1000 in the front-rear direction.

[0088] like Figure 11 As shown, under the action of the second driving component 2600, the second support 2200 can move forward until it is limited by the first support 2100. At this time, the headrest body 1000 can be in the foremost position in the front-rear direction.

[0089] This utility model embodiment also provides a vehicle seat, including a seat body and a headrest.

[0090] The seat body may include a seat basin and a backrest. In some implementations, the backrest can rotate relative to the seat basin to adjust its angle. In other implementations, the backrest may be fixed relative to the seat basin, meaning its angle is not adjustable. A headrest may be mounted on the seat body, specifically on the backrest.

[0091] The headrest can be an adjustable headrest as described in the aforementioned implementations. The first guide component 2300 of this adjustable headrest has a mounting section 2320 that extends out of the headrest body 1000 and can be connected to the backrest to secure the headrest to the backrest. The specific connection method between the mounting section 2320 and the backrest is not limited here. In practical applications, those skilled in the art can choose according to specific needs, as long as the requirements are met. For example, the mounting section 2320 and the backrest can be connected by screws, riveting, snap-fitting, welding, or other connection methods.

[0092] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An adjustable headrest, characterized by The device includes a headrest body (1000) and an adjustment mechanism (2000). The adjustment mechanism (2000) includes a first support (2100), a second support (2200), a first guide component (2300), a first drive component (2400), a second guide component (2500), a second drive component (2600), and an elastic gap-eliminating component (2700). The first guide component (2300) includes a first guide section (2310) extending in the vertical direction. The first support (2100) is slidably fitted onto the first guide section (2310). The first drive component (2400) is used to drive the first support (2100). The second support... The seat (2200) is mounted on the second guide component (2500), the second support (2200) is connected to the headrest body (1000), the second guide component (2500) includes a second guide section (2510) extending in the front-rear direction, the first support (2100) is also slidably mounted on the second guide section (2510), the second drive component (2600) is used to drive the second support (2200), and the elastic gap-eliminating component (2700) is disposed between the first guide section (2310) and the first support (2100), and between the second guide section (2510) and the first support (2100).

2. The adjustable headrest of claim 1, wherein, The first support (2100) is provided with a first guide hole (2110) and a second guide hole (2120), the first guide segment (2310) is inserted into the first guide hole (2110), and the second guide segment (2510) is inserted into the second guide hole (2120). Each of the first guide hole (2110) and the second guide hole (2120) includes a base hole portion and an enlarged hole portion, wherein the enlarged hole portion is located in a local area on the outer peripheral side of the base hole portion, and the elastic gap elimination component (2700) is disposed in the enlarged hole portion.

3. The adjustable headrest of claim 2, wherein, The number of first guide holes (2110) that are inserted into and cooperate with a first guide segment (2310) is at least two, and in each first guide hole (2110), at least two of the first guide holes (2110) have different circumferential positions of the enlarged portion; and / or, The number of second guide holes (2120) that are inserted into and cooperate with a second guide segment (2510) is at least two, and in each second guide hole (2120), at least two of the second guide holes (2120) have different positions of the enlarged hole portion in the circumferential direction.

4. The adjustable headrest of claim 1, wherein, The elastic gap-eliminating component (2700) has a hollow hole (2711).

5. The adjustable headrest of claim 1, wherein, The elastic gap-eliminating component (2700) is provided with a snap-fit ​​portion (2720), and the elastic gap-eliminating component (2700) and the first support (2100) are snap-fitted together via the snap-fit ​​portion (2720); and / or, The first support (2100), the second support (2200), the first guide section (2310), the first drive component (2400), the second guide component (2500) and the second drive component (2600) are all disposed within the headrest body (1000).

6. The adjustable headrest according to any one of claims 1-5, wherein, The first driving component (2400) includes a first driving component (2410) and a first lead screw (2420). The first driving component (2410) is used to drive the first lead screw (2420) to rotate. The first driving component (2410) is mounted on the first support (2100). The adjusting mechanism (2000) further includes a third support (2800), which is mounted on the first guide component (2300), and the first lead screw (2420) and the third support (2800) are threadedly connected.

7. The adjustable headrest of claim 6, wherein, The second drive component (2600) includes a second drive component (2610) and a second lead screw (2620). The second drive component (2610) is used to drive the second lead screw (2620) to rotate. The second drive component (2610) is mounted on the second support (2200). The second lead screw (2620) and the first support (2100) are threadedly connected.

8. The adjustable headrest of claim 7, wherein, At least one of the first support (2100) and the third support (2800) is integrally formed with a threaded hole; or, At least one of the first support (2100) and the third support (2800) is fitted with a threaded component (2130) having a threaded hole.

9. The adjustable headrest of claim 7, wherein, At least one of the first lead screw (2420) and the second lead screw (2620) is provided with a limiting member.

10. A vehicle seat characterized by comprising: The seat includes a seat body and a headrest, wherein the headrest is mounted on the seat body and the headrest is an adjustable headrest as described in any one of claims 1-9.

Images