Adjustable seat headrest
By designing an adjustable seat headrest, the horizontal movement and rotation of the headrest body is achieved by using the first and second adjustment mechanisms, the problem that the existing seat headrest cannot adjust the horizontal position is solved, and the neck of the driver and passengers is improved Partial comfort.
Patent Information
- Application Number
- CN202420260448.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing seat headrests cannot move and rotate horizontally, causing problems with drivers and passengers with neck discomfort during the vehicle's driving.
A seat headrest including a headrest body, a support rod, a mounting seat, a first adjustment mechanism and a second adjustment mechanism are designed. The first adjustment mechanism is used to drive the headrest body to move in a horizontal direction, and the second adjustment mechanism is used for The driving headrest body rotates in the horizontal plane, and the horizontal position adjustment is achieved through the gear set and the transmission shaft.
The horizontal position adjustment of the seat headrest is achieved, improving the neck comfort of the driver and passengers.
Smart Images
Figure CN222246959U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle seats, in particular to an adjustable seat headrest. Background Art
[0002] The headrest of a vehicle seat is located at the top of the seat and can be used to reduce the pressure on the neck of the driver and passengers. At present, most of the headrests can be adjusted up and down by inserting the headrest rod into the headrest guide sleeve at the top of the backrest. For example, Chinese utility model patent CN214564827U discloses an easily adjustable headrest for a car seat, which can adjust the height of the headrest, but the scheme cannot adjust the horizontal position of the seat headrest. Since most of the existing headrests lack horizontal adjustment, there is a problem of neck discomfort for drivers and passengers during vehicle driving. Utility Model Content
[0003] The utility model aims to solve the problem that the seat headrest cannot be moved and rotated horizontally, so the horizontal position cannot be adjusted, thereby affecting the comfort of the driver and the passenger's neck.
[0004] In order to solve the above problems, the utility model proposes an adjustable seat headrest, including a headrest body, a support rod connected to the headrest body, a mounting seat for mounting the support rod, a first adjustment mechanism connected to the mounting seat for driving the headrest body to move in a horizontal direction, and a second adjustment mechanism connected to the support rod and the mounting seat for driving the headrest body to rotate in a horizontal plane.
[0005] Furthermore, the first adjustment mechanism includes a first driving member drivingly connected to the mounting seat, and a push plate fixedly connected to the mounting seat, wherein the push plate is connected between the first driving member and the mounting seat. The second adjustment mechanism includes a second driving member installed in the mounting seat and a gear set drivingly connected to the second driving member, wherein the gear set includes a driving wheel, a driven wheel and a transmission shaft, wherein the driving wheel is drivingly connected to the driven wheel, and the driven wheel is connected to the support rod via the transmission shaft.
[0006] Furthermore, the support rod is a telescopic rod, including an upper rod connected to the headrest body, and a lower rod connected to the transmission shaft, and the upper rod and the lower rod are sleeved with each other to drive the headrest body to move vertically.
[0007] Furthermore, the second adjustment mechanism also includes a gear limiting piece sleeved on the transmission shaft for limiting the position of the gear set. The second adjustment mechanism also includes a mounting plate connecting the lower rod body and the transmission shaft.
[0008] Furthermore, it also includes a positioning rod, and a limiting groove for accommodating the positioning rod is opened on the headrest body. One end of the positioning rod is fixedly connected to the mounting seat, and the other end is accommodated in the limiting groove for limiting the rotation of the headrest body.
[0009] Furthermore, it also includes a headrest mounting portion, which has a receiving cavity for receiving the mounting seat, the first adjustment mechanism and the second adjustment mechanism, and the headrest mounting portion is provided with a receiving groove for allowing the positioning rod to pass through and a receiving hole for allowing the support rod to pass through on one side of the headrest mounting portion close to the headrest body.
[0010] Preferably, it also includes a stabilizing rod with both ends fixed in the headrest mounting portion and slidably connected to the positioning rod, the positioning rod is provided with a guide groove along a direction perpendicular to its own axial direction, and the stabilizing rod is inserted in the guide groove to limit the horizontal movement direction of the headrest.
[0011] Preferably, it also includes an adjustment slide and an adjustment spring sleeved on the stabilizing rod, one end of the adjustment spring is fixedly connected to the adjustment slide, and the other end is fixed in the headrest mounting portion.
[0012] Compared with the prior art, the technical solution of the utility model has the following beneficial effects: the seat headrest of the utility model can be horizontally moved and rotated according to the head position of the driver and the passenger, so as to adjust the horizontal position of the seat headrest, thereby improving the neck comfort of the driver and the passenger. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a partial isometric sectional view of the vehicle seat of the present utility model.
[0015] Figure 2 for Figure 1 Isometric cutaway view from another perspective.
[0016] Figure 3 It is a schematic diagram of the seat headrest assembly structure of the utility model.
[0017] Figure 4 It is a schematic diagram of the exploded structure of the seat headrest of the utility model.
[0018] Figure 5It is a partial isometric sectional view of the seat headrest of the utility model.
[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the vehicle seat of the present utility model.
[0020] In the figure:
[0021] 1-headrest body; 11-limiting groove;
[0022] 2-support rod; 21-upper rod body; 22-lower rod body;
[0023] 3-mounting seat; 31-sliding block; 32-sliding groove; 3a-top plate; 3b-bottom plate;
[0024] 4-first adjustment mechanism; 41-first driving member; 42-push plate
[0025] 5-second adjusting mechanism; 51-second driving member; 52-gear set; 521-driving wheel; 522-driven wheel 523-transmission shaft; 524-gear limiting plate; 53-mounting plate.
[0026] 6-positioning rod; 61-guide groove,
[0027] 7-headrest mounting portion; 71-accommodating cavity; 72-accommodating groove; 73-accommodating hole;
[0028] 8-stabilizing rod; 81-adjusting slide; 82-adjusting spring;
[0029] 91-backrest; 92-seat cushion. DETAILED DESCRIPTION
[0030] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] The orientation or position relationship indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the utility model.
[0032] The terms "first", "second", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.
[0033] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.
[0034] See also Figure 6 The utility model provides a technical solution: a vehicle seat, including a seat cushion 92, a backrest 91 and an adjustable seat headrest, the backrest 91 and the seat cushion 92 are fixedly connected, and a headrest mounting portion 7 for accommodating the seat headrest is provided on one side of the backrest 91 close to the seat headrest, and the seat headrest is transmission-connected in the mounting portion.
[0035] See also Figure 1-3 Furthermore, the seat headrest includes a headrest body 1, a support rod 2, a mounting seat 3, a first adjustment mechanism 4 and a second adjustment mechanism 5. The support rod 2 is connected between the headrest body 1 and the mounting seat 3. The first adjustment mechanism 4 is connected to the mounting seat 3 for driving the headrest body 1 to move in the horizontal direction. The second adjustment mechanism 5 is connected to the mounting seat 3 and the support rod 2 for driving the headrest body 1 to rotate in the horizontal plane. The headrest mounting portion 7 has a receiving cavity 71, and the receiving cavity 71 is used to receive the mounting seat 3, the first adjustment mechanism 4 and the second adjustment mechanism 5. In a specific embodiment, the mounting seat 3 is a rectangular box, including a top plate 3a close to the headrest body 1 and a bottom plate 3b away from the headrest body 1.
[0036] See also Figure 1 , Figure 4 Preferably, a slider 31 is fixedly connected to the bottom plate 3b of the mounting seat 3, a slide groove 32 is provided on the side of the backrest 91 close to the mounting portion, and the slider 31 is at least partially embedded in the slide groove 32, so that the mounting seat 3 is slidably connected to the backrest 91, thereby realizing the adjustment of the position of the seat headrest in the horizontal direction. When adjusting the position of the headrest body 1, the slider 31 can improve the stability of the headrest body 1.
[0037] See also Figure 2 , Figure 5 Further, the first adjustment mechanism 4 includes a first driving member 41 and a push plate 42, the first driving member 41 is transmission-connected to the mounting seat 3, the push plate 42 is fixedly connected to the mounting seat 3, and is connected between the first driving member 41 and the mounting seat 3, and is used to drive the mounting seat 3 to move horizontally. In a specific embodiment, the first driving member 41 is an electric cylinder, the output end of the first driving member 41 is fixedly connected to the push plate 42 through a coupling, and the other end of the first driving member 41 is fixedly connected to the side wall of the accommodating cavity 71.
[0038] See also Figure 4, further, the second adjustment mechanism 5 includes a second driving member 51 and a transmission mechanism, the second driving member 51 and the transmission mechanism are both installed in the mounting seat 3, and the transmission mechanism is connected to the second driving member 51 in a transmission manner. In a specific embodiment, the second driving member 51 is a motor, the lower end of the second driving member 51 is fixedly connected to the bottom wall of the accommodating chamber 71, and the output end of the second driving member 51 is connected to the transmission mechanism through a coupling. Preferably, the transmission mechanism is a bevel gear set 52, including a driving wheel 521, a driven wheel 522 and a transmission shaft 523, the driving wheel 521 is connected to the driven wheel 522 in a transmission manner, and the driven wheel 522 is connected to the support rod 2 through the transmission shaft 523, and the overall structure of the second adjustment mechanism 5 can be made compact through the bevel gear set 52. Further, the gear set 52 also includes a gear limiter 524 sleeved on the transmission shaft 523 for limiting the position of the gear set 52. Preferably, there are two gear limit plates 524 fixedly disposed on the transmission shaft 523 , a through hole for the transmission shaft 523 to pass through is opened on the top plate 3 a of the mounting seat 3 , and the top plate 3 a of the mounting seat 3 is clamped between the two gear limit plates 524 .
[0039] Preferably, the support rod 2 is a telescopic rod, including an upper rod body 21 and a lower rod body 22 which are sleeved with each other, the upper rod body 21 is connected to the headrest body 1, and the lower rod body 22 is connected to the transmission shaft 523. In a specific embodiment, the support rod 2 is an electric telescopic rod, and the headrest body 1 is driven to move vertically by the support rod 2. Furthermore, a mounting plate 53 or a connecting sleeve is connected between the lower rod body 22 and the transmission shaft 523, thereby improving the supporting strength of the support rod 2 and the stability of the headrest body 1 installed in the mounting portion.
[0040] Preferably, the seat headrest of the utility model also includes a positioning rod 6. A limiting groove 11 for accommodating the positioning rod 6 is provided on the headrest body 1. One end of the positioning rod 6 is fixedly connected to the mounting seat 3, and the other end is accommodated in the limiting groove 11, which is used to limit the rotation direction of the headrest body 1. The number of positioning rods 6 is preferably two, which are symmetrically arranged on both sides of the support rod 2. The limiting groove 11 can be arc-shaped, circular, polygonal, etc., preferably circular, and the number is four, evenly distributed at the bottom of the headrest body 1, so as to limit the horizontal angle of the seat headrest. In a specific embodiment, the line connecting the geometric centers of the two relative limiting grooves 11 is perpendicular to each other, that is, the seat headrest can be locked in the position of 90° rotated in the horizontal direction. In another embodiment, the limiting groove 11 can also be one or more arc-shaped grooves, so as to facilitate the adjustment of the horizontal angle.
[0041] Furthermore, the headrest mounting portion 7 also has a receiving groove 72 and a receiving hole 73, which are arranged on one side of the headrest mounting portion 7 close to the headrest body 1, and the receiving groove 72 is used for the positioning rod 6 to pass through, and the receiving hole 73 is used for the support rod to pass through. In a specific embodiment, the receiving groove and the receiving hole are both rectangular.
[0042] Preferably, the seat headrest of the utility model further comprises a stabilizing rod 8, both ends of which are fixed in the headrest mounting portion 7 and are slidably connected with the positioning rod 6, the positioning rod 6 is provided with a guide groove 61 in a direction perpendicular to its own axis, and the stabilizing rod 8 is inserted in the guide groove 61 to limit the horizontal movement direction of the headrest. Preferably, an adjustment slide 81 and an adjustment spring 82 are sleeved on the stabilizing rod 8, one end of the adjustment spring 82 is fixedly connected with the adjustment slide 81, and the other end is fixed in the headrest mounting portion 7. The stabilizing rod 8 can effectively prevent the situation in which the support force provided by the support rod 2 and the positioning rod 6 to the headrest body 1 is insufficient to support the driver or passenger's head during the adjustment process, thereby further improving the support strength of the seat headrest.
[0043] When adjusting the horizontal position of the headrest body 1 , the first driving member 41 is started to drive the push plate 42 to push the mounting seat 3 to move horizontally, thereby driving the headrest body 1 mounted on the mounting seat 3 through the support rod 2 and the positioning rod 6 to move horizontally.
[0044] When adjusting the horizontal angle of the headrest body 1, start the support rod 2, first drive the headrest body 1 to rise upward to the position where the positioning rod 6 is out of the limiting groove 11, close the support rod 2, and start the second driving member 51, drive the support rod 2 to rotate through the gear set 52, for example, when it rotates 90°, close the second driving member 51, start the support rod 2 again, drive the headrest body 1 to move downward, and the positioning rod 6 is accommodated in the limiting groove 11, thereby limiting the position of the headrest body 1.
[0045] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.
Claims
1. An adjustable seat headrest, characterized in that: The headrest comprises a headrest body (1), a support rod (2) connected to the headrest body (1), a mounting seat (3) for mounting the support rod (2), a first adjustment mechanism (4) connected to the mounting seat (3) for driving the headrest body (1) to move in a horizontal direction, and a second adjustment mechanism (5) connected to both the support rod (2) and the mounting seat (3) for driving the headrest body (1) to rotate in a horizontal plane.
2. The adjustable seat headrest according to claim 1, characterized in that: The first adjustment mechanism (4) comprises a first driving member (41) transmission-connected to the mounting seat (3), and a push plate (42) fixedly connected to the mounting seat, wherein the push plate (42) is connected between the first driving member (41) and the mounting seat (3).
3. The adjustable seat headrest according to claim 1, characterized in that: The second adjustment mechanism (5) comprises a second driving member (51) installed in the mounting seat (3) and a gear set (52) drivingly connected to the second driving member (51); the gear set (52) comprises a driving wheel (521), a driven wheel (522) and a transmission shaft (523); the driving wheel (521) is drivingly connected to the driven wheel (522); and the driven wheel (522) is connected to the support rod (2) via the transmission shaft (523).
4. The adjustable seat headrest according to claim 3, characterized in that: The support rod (2) is a telescopic rod, comprising an upper rod (21) connected to the headrest body (1), and a lower rod (22) connected to the transmission shaft (523); the upper rod (21) and the lower rod (22) are sleeved together and are used to drive the headrest body (1) to move vertically.
5. The adjustable seat headrest according to claim 4, characterized in that: The second adjustment mechanism (5) further comprises a gear limiting plate (524) sleeved on the transmission shaft (523) and used for limiting the position of the gear set (52).
6. The adjustable seat headrest according to claim 5, characterized in that: The second adjustment mechanism (5) further comprises a mounting plate (53) connecting the lower rod body (22) and the transmission shaft (523).
7. The adjustable seat headrest according to any one of claims 3 to 6, characterized in that: It also includes a positioning rod (6), and a limiting groove (11) for accommodating the positioning rod (6) is provided on the headrest body (1), one end of the positioning rod (6) is fixedly connected to the mounting seat (3), and the other end is accommodated in the limiting groove (11) for limiting the rotation of the headrest body (1).
8. The adjustable seat headrest according to claim 7, characterized in that: The headrest mounting part (7) further comprises a headrest mounting part (7), wherein the headrest mounting part (7) has a receiving cavity (71) for receiving the mounting seat (3), the first adjusting mechanism (4) and the second adjusting mechanism (5); and a receiving groove (72) for the positioning rod (6) to pass through, and a receiving hole (73) for the support rod to pass through are provided on a side of the headrest mounting part (7) close to the headrest body (1).
9. The adjustable seat headrest according to claim 8, characterized in that: It also includes a stabilizing rod (8) whose two ends are fixed in the headrest mounting portion (7) and slidably connected to the positioning rod (6); the positioning rod (6) is provided with a guide groove (61) along a direction perpendicular to its own axial direction; the stabilizing rod (8) is inserted into the guide groove (61) to limit the horizontal movement direction of the headrest.
10. The adjustable seat headrest according to claim 9, characterized in that: It also includes an adjustment slide (81) and an adjustment spring (82) sleeved on the stabilizing rod (8); one end of the adjustment spring (82) is fixedly connected to the adjustment slide (81), and the other end is fixed in the headrest mounting portion (7).