Electric six-direction adjustment driving device for headrest
By integrating an electric screw adjustment mechanism into the car seat headrest, six-way precise adjustment of the headrest is achieved, solving the problems of inaccurate adjustment and loss of side support in traditional headrests, thus improving passenger comfort and ease of adjustment.
Patent Information
- Application Number
- CN202520484910.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Traditional car seat headrests are not precise enough to match the specific needs of passengers. The side wings are prone to losing their support function when vibrating. The height adjustment function is difficult to operate, the internal structure is prone to jamming, and the vertical angle adjustment is unidirectional and inconvenient to reset.
The headrest employs a lifting, vertical angle, and side wing angle adjustment mechanism, which achieves six-way adjustment through electric screw mechanisms. These mechanisms are integrated inside the headrest for precise adjustment.
It enables multi-directional precise adjustment of the headrest, improves passenger comfort, avoids the problem of loss of support due to side wing flipping, simplifies the operation process, and improves the convenience and consistency of adjustment.
Smart Images
Figure CN223835475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat technology, and in particular to a headrest electric six-way adjustment drive device. Background Technology
[0002] Traditional car seat headrests are manually adjustable for height and vertical angle, while the side wings are manually adjustable with damping.
[0003] First, the headrest's height and vertical angle are both non-linearly adjustable, with only a few preset height settings for both. This makes it difficult to precisely adjust the position based on the passenger's specific sitting height, thus failing to provide perfect comfort.
[0004] Secondly, in most car models, the side wings of the headrest cannot be adjusted, while the manually adjustable ones are all damper positioning. When riding, due to vibration and the movements of the passenger, the side wings may flip backward and lose their support function.
[0005] Secondly, the height adjustment function is difficult to operate manually. The headrests of various car models are relatively difficult to adjust. Due to the imbalance of the internal locking mechanism and the installation error of the guide rail, they are prone to jamming. It is necessary to shake them and then pull them out or press them down with considerable force to adjust them. Moreover, it cannot be adjusted when the passenger is sitting, and it is even more difficult to match them to the right position, requiring multiple adjustments.
[0006] Finally, the internal structure for vertical angle adjustment is generally a cyclic ratchet mechanism, which can only be adjusted in one direction. If it is not adjusted properly, it has to be started all over again. Moreover, it is easy to get stuck and unable to reset when resetting at a high position. Utility Model Content
[0007] The technical problem to be solved by this utility model is to provide an electric six-way adjustable headrest drive device to address the aforementioned technical problems of traditional car seat headrests, thereby solving the various problems existing in the prior art.
[0008] The technical problem to be solved by this utility model can be achieved through the following technical solution:
[0009] A six-way electrically adjustable headrest drive device includes:
[0010] Headrest support components installed on seats;
[0011] A headrest sliding component that is slidably disposed on the headrest support component;
[0012] A headrest hinged to the headrest sliding component;
[0013] A headrest lifting and adjusting mechanism, wherein the fixed side of the headrest lifting and adjusting mechanism is mounted on the headrest support component, and the driving side of the headrest lifting and adjusting mechanism is drivenly connected to the headrest sliding component, driving the headrest sliding component to slide up and down along the headrest support component;
[0014] A headrest vertical angle adjustment mechanism, wherein the fixed side of the headrest vertical angle adjustment mechanism is mounted on the headrest sliding component, and the driving side of the headrest vertical angle adjustment mechanism is connected to the headrest driving connection, driving the headrest to rotate around the hinge point between the headrest and the headrest sliding component;
[0015] At least one side wing, said side wing being hinged to the side of the headrest;
[0016] A headrest side wing angle adjustment mechanism is provided, wherein the fixed side of the headrest side wing angle adjustment mechanism is mounted on the headrest, and the driving side of the headrest side wing angle adjustment mechanism is driven to drive the side wing to rotate around the hinge point between the side wing and the sliding component of the headrest.
[0017] In a preferred embodiment of this utility model, the headrest lifting adjustment mechanism, the headrest vertical angle adjustment mechanism, and the headrest side wing angle adjustment mechanism are respectively a headrest lifting electric screw adjustment mechanism, a headrest vertical angle electric screw adjustment mechanism, and a headrest side wing angle electric screw adjustment mechanism.
[0018] In a preferred embodiment of this utility model, the electric mechanism in the headrest lifting electric screw adjustment mechanism is installed at the bottom of the headrest support component; the nut in the headrest lifting electric screw adjustment mechanism is connected to the headrest sliding component.
[0019] In a preferred embodiment of the present invention, the top of the headrest is hinged to the top of the headrest sliding component.
[0020] In a preferred embodiment of this utility model, the electric mechanism in the headrest vertical angle electric screw adjustment mechanism is installed at the bottom of the headrest sliding component, and the nut in the headrest vertical angle electric screw adjustment mechanism is connected to the bottom of the headrest.
[0021] In a preferred embodiment of this utility model, there are two side wings, which are respectively hinged to the left and right sides of the headrest.
[0022] In a preferred embodiment of this utility model, the electric mechanism in the headrest side wing angle electric screw adjustment mechanism is installed in the middle position of the headrest, and there are two nuts in the headrest side wing angle electric screw adjustment mechanism. The two nuts are respectively screwed on the left and right ends of the screw in the headrest side wing angle electric screw adjustment mechanism and respectively connected to the two side wings.
[0023] By adopting the above technical solution, this utility model integrates three electric screw adjustment mechanisms in the internal structure of the headrest, which respectively control the lifting and lowering of the headrest, the vertical angle adjustment, and the angle adjustment of the two side wings. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the six-way electric adjustment drive device for the headrest of this utility model when the headrest is in its lowest position.
[0025] Figure 2 This is a schematic diagram of the external shape of the electric six-way adjustable headrest drive device of this utility model when the headrest is in its highest position.
[0026] Figure 3 This is one of the internal structural schematic diagrams of the electric six-way adjustable headrest drive device of this utility model.
[0027] Figure 4 This is a side view of the electric six-way adjustable headrest drive device of this utility model with the headrest in its lowest position.
[0028] Figure 5 This is a side view of the electric six-way adjustable headrest drive device of this utility model with the headrest in an outward-flipped position.
[0029] Figure 6 This is the second schematic diagram of the internal structure of the electric six-way adjustment drive device for the headrest of this utility model.
[0030] Figure 7 This is one of the bottom views of the electric six-way adjustable headrest drive device of this utility model.
[0031] Figure 8 This is the second bottom view of the electric six-way adjustable headrest drive device of this utility model.
[0032] Figure 9 This is the third schematic diagram of the internal structure of the headrest's electric six-way adjustment drive device according to this utility model. Detailed Implementation
[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0034] See Figures 1 to 9 The headrest electric six-way adjustment drive device shown in the figure includes: a headrest support component 100, a headrest sliding component 200, a headrest 300, a pair of side wings 400, a headrest lifting adjustment mechanism, a headrest vertical angle adjustment mechanism, and a headrest side wing angle adjustment mechanism.
[0035] A headrest support component 100 is mounted on a seat (not shown in the figure), and a headrest sliding component 200 is slidably configured on the headrest support component 100. For example, a slider is mounted on the headrest sliding component 200, and a slide rail is mounted on the headrest support component 100, allowing the slider to move up and down on the slide rail. Additionally, a guide rod is mounted on the headrest support component 100, and a guide sleeve is mounted on the headrest sliding component 200. The guide sleeve fits onto the guide rod and moves up and down along the guide rod. The guide rod and guide sleeve can also restrict the circumferential rotation of the headrest sliding component 200, allowing it to move only axially up and down.
[0036] The headrest sliding component 200 moves up and down driven by the headrest lifting adjustment mechanism. The headrest lifting adjustment mechanism is a headrest lifting electric screw adjustment mechanism 500. The electric mechanism 510 in the headrest lifting electric screw adjustment mechanism 500 is installed at the bottom of the headrest support component 100. The nut 520 in the headrest lifting electric screw adjustment mechanism 500 is connected to the headrest sliding component 200. The rotation of the screw 530 in the headrest lifting electric screw adjustment mechanism 500 is converted into the linear movement of the nut 520 along the screw 530, which in turn drives the headrest sliding component 200 to move up and down.
[0037] The top of the headrest 300 is hinged to the top of the headrest sliding component 200, and its angle is adjusted by a headrest vertical angle adjustment mechanism. This mechanism is a headrest vertical angle electric screw adjustment mechanism 600. The electric mechanism 610 in the headrest vertical angle electric screw adjustment mechanism 600 is installed at the bottom of the headrest sliding component 200. The nut 620 in the headrest vertical angle electric screw adjustment mechanism 600 is connected to the bottom of the headrest 300. The rotation of the screw 630 in the headrest vertical angle electric screw adjustment mechanism 600 is converted into the linear movement of the nut 620 along the screw 530. This movement, in turn, causes the bottom of the headrest 300 to rotate inwards and outwards around the hinge point between the top of the headrest 300 and the top of the headrest sliding component 200, thereby adjusting the vertical angle of the headrest to meet the passenger's desired angle.
[0038] A pair of side wings 400 are hinged to the left and right sides of the headrest 300, respectively, and are driven to rotate by the headrest side wing angle adjustment mechanism. The headrest side wing angle adjustment mechanism is a headrest side wing angle electric screw adjustment mechanism 700. The electric mechanism 710 in the headrest side wing angle electric screw adjustment mechanism 700 is installed in the middle of the headrest 300. The screw 730 in the headrest side wing angle electric screw adjustment mechanism 700 is a double output screw. There are two nuts 720 in the headrest side wing angle electric screw adjustment mechanism 700. The two nuts 720 are screwed on the left and right ends of the screw 730 in the headrest side wing angle electric screw adjustment mechanism 700 and connected to the two side wings 400 respectively. The rotation of the screw 730 in the headrest side wing angle electric screw adjustment mechanism 700 is converted into the linear movement of the nuts 720 along the screw 730. In turn, the nuts 720 drive the pair of side wings 400 to rotate around their hinge point with the headrest sliding component 200 to achieve the angle required by the passenger.
Claims
1. A six-way electrically adjustable headrest drive device, characterized in that, include: Headrest support components installed on seats; A headrest sliding component that is slidably disposed on the headrest support component; A headrest hinged to the headrest sliding component; A headrest lifting and adjusting mechanism, wherein the fixed side of the headrest lifting and adjusting mechanism is mounted on the headrest support component, and the driving side of the headrest lifting and adjusting mechanism is drivenly connected to the headrest sliding component, driving the headrest sliding component to slide up and down along the headrest support component; A headrest vertical angle adjustment mechanism, wherein the fixed side of the headrest vertical angle adjustment mechanism is mounted on the headrest sliding component, and the driving side of the headrest vertical angle adjustment mechanism is connected to the headrest driving connection, driving the headrest to rotate around the hinge point between the headrest and the headrest sliding component; At least one side wing, said side wing being hinged to the side of the headrest; A headrest side wing angle adjustment mechanism is provided, wherein the fixed side of the headrest side wing angle adjustment mechanism is mounted on the headrest sliding component, and the driving side of the headrest side wing angle adjustment mechanism is driven to drive the side wing to rotate around the hinge point between the side wing and the headrest sliding component.
2. The headrest electric six-way adjustment drive device according to claim 1, characterized in that, The headrest lifting adjustment mechanism, the headrest vertical angle adjustment mechanism, and the headrest side wing angle adjustment mechanism are respectively the headrest lifting electric screw adjustment mechanism, the headrest vertical angle electric screw adjustment mechanism, and the headrest side wing angle electric screw adjustment mechanism.
3. The headrest electric six-way adjustment drive device according to claim 2, characterized in that, The electric mechanism in the headrest lifting electric screw adjustment mechanism is installed at the bottom of the headrest support component; the nut in the headrest lifting electric screw adjustment mechanism is connected to the headrest sliding component.
4. The headrest electric six-way adjustment drive device according to claim 2, characterized in that, The top of the headrest is hinged to the top of the headrest sliding component.
5. A headrest electric six-way adjustment drive device according to claim 4, characterized in that, The electric mechanism in the headrest vertical angle electric screw adjustment mechanism is installed at the bottom of the headrest sliding component, and the nut in the headrest vertical angle electric screw adjustment mechanism is connected to the bottom of the headrest.
6. The headrest electric six-way adjustment drive device according to claim 2, characterized in that, There are two side wings, which are respectively hinged to the left and right sides of the headrest.
7. A headrest electric six-way adjustment drive device according to claim 6, characterized in that, The electric mechanism in the headrest side wing angle electric screw adjustment mechanism is installed in the middle of the headrest. There are two nuts in the headrest side wing angle electric screw adjustment mechanism. The two nuts are screwed on the left and right ends of the screw in the headrest side wing angle electric screw adjustment mechanism and are respectively connected to the two side wings.