Headrest electric lifting adjustment driving mechanism
The electric screw adjustment mechanism for headrest lifting solves the problems of inaccurate and stuck headrest adjustment in traditional seats, achieving stepless adjustment and smooth reset of the headrest, thus improving passenger comfort.
Patent Information
- Application Number
- CN202520484900.1
- 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 have inaccurate height adjustment and the vertical angle adjustment structure is prone to jamming, failing to meet the personalized needs of passengers.
The headrest is adjusted by an electric screw mechanism. The screw is driven to rotate by an electric mechanism, which in turn moves the nut up and down along the screw, thus achieving stepless adjustment of the headrest and preventing jamming when resetting to a high position.
It enables precise adjustment of the headrest's height, improving passenger comfort and ensuring smooth, unobstructed high-position reset.
Smart Images
Figure CN223835473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seat technology, and in particular to an electric lifting and adjusting drive mechanism for a headrest. Background Technology
[0002] Traditional car seat headrests are manually adjustable in height, and the height adjustment is non-linear, with only a few rated height positions in both directions. It is difficult to accurately position the headrest according to the passenger's specific sitting height, which cannot provide the passenger with perfect comfort. In addition, the internal structure of the vertical angle adjustment is generally a circulating ratchet mechanism, which can only operate in one direction. If it is not adjusted properly, it must be started again. Moreover, it is easy to get stuck and unable to reset when resetting at a high position. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an electric lifting and adjusting drive device for headrests, which addresses the aforementioned technical problems existing in traditional car seat headrests, thereby solving the various problems existing in the prior art.
[0004] The technical problem to be solved by this utility model can be achieved through the following technical solution:
[0005] A headrest electric lifting and adjustment drive mechanism includes:
[0006] Headrest support components installed on seats;
[0007] A headrest sliding component that is slidably disposed on the headrest support component;
[0008] The headrest is mounted on the headrest sliding component;
[0009] A headrest lifting and adjusting mechanism is provided, 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; characterized in that the headrest lifting and adjusting mechanism is a headrest lifting electric screw adjusting mechanism, which includes an electric mechanism, a screw, and a nut; the electric mechanism is mounted on the bottom of the headrest support component and drivenly connected to the screw; the nut is screwed on the screw and fixedly connected to the headrest sliding component; the electric mechanism drives the screw to rotate, which is converted into the nut moving up and down linearly along the screw, thereby driving the headrest sliding component to move up and down along the headrest support component.
[0010] In a preferred embodiment of the present invention, at least one guide rod is provided on the headrest support component, and at least one guide sleeve is provided on the headrest sliding component. The guide sleeve is slidably disposed on the guide rod and guides the movement of the headrest sliding component.
[0011] In a preferred embodiment of the present invention, a nut mounting hole is provided on the headrest sliding component, the nut is embedded in the nut mounting hole, and the lead screw passes through the nut mounting hole.
[0012] Thanks to the above technical solution, this invention enables stepless adjustment of the headrest's height, allowing for precise positioning based on the passenger's specific sitting height, thus providing perfect comfort. Furthermore, it is less prone to jamming during high-position reset and can reset normally. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the electric lifting and adjusting drive mechanism for the headrest of this utility model when the headrest is in its lowest position.
[0014] Figure 2 This is a schematic diagram of the electric lifting and adjusting drive mechanism for the headrest of this utility model when the headrest is in its highest position.
[0015] Figure 3 This is a schematic diagram of the internal structure of the electric lifting and adjusting drive mechanism for the headrest of this utility model.
[0016] Figure 4 This is an exploded view of the electric lifting and adjusting drive mechanism for the headrest of this utility model. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] See Figures 1 to 4 The figure shows an electric lifting and adjusting drive mechanism for a headrest, comprising: a headrest support component 100, a headrest sliding component 200, a headrest 300, and a headrest lifting and adjusting mechanism. The headrest 300 is mounted on the headrest sliding component 200, for example, the top of the headrest 300 is hinged to the headrest sliding component 200, and the lower part of the headrest 300 is angled by a headrest vertical angle adjusting mechanism.
[0019] The headrest support component 100 is basically a frame structure, consisting of two vertical sides 110 and 120, an upper horizontal side 130, and a lower horizontal side 140. The lower horizontal side 140 is mounted on the seat (not shown in the figure). Two guide rods 150 and 160 are installed between the upper horizontal side 130 and the lower horizontal side 140. The two guide rods 150 and 160 are parallel to the two vertical sides 110 and 120 and are located between the two vertical sides 110 and 120. The two guide rods 150 and 160 not only guide the headrest sliding component 200, but also reinforce the entire headrest support component 100, thereby increasing the strength of the headrest support component 100.
[0020] The headrest sliding component 200 is provided with two guide sleeves 210 and 220, which are slidably arranged on the guide rods 150 and 160, and play a guiding role in the movement of the headrest sliding component 200.
[0021] The headrest sliding component 200 moves up and down by being driven by the headrest lifting adjustment mechanism. The headrest lifting adjustment mechanism is a headrest lifting electric screw adjustment mechanism 400, which includes an electric mechanism 410, a screw 420, and a nut 430. The electric mechanism 410 is mounted on the lower horizontal side 140 and is driven by the screw 420. The screw 420 extends along a direction parallel to the two vertical sides 110 and 120.
[0022] A nut mounting hole 131 is provided on the upper horizontal edge 130. The nut 430 is embedded in the nut mounting hole 131. The lead screw 420 passes through the nut mounting hole 131, and the nut 430 is screwed onto the lead screw 420. The electric mechanism 410 drives the lead screw 420 to rotate, which is converted into the nut 430 moving up and down linearly along the lead screw 420. This, in turn, drives the headrest sliding component 200 to move up and down along the headrest support component 100, realizing stepless adjustment of the height of the headrest 300. It can be precisely positioned according to the passenger's specific sitting height, bringing perfect comfort to the passenger.
Claims
1. A headrest electric lifting and adjusting drive mechanism, comprising: Headrest support components installed on seats; A headrest sliding component that is slidably disposed on the headrest support component; The headrest is mounted on the headrest sliding component; A headrest lifting and adjusting mechanism is provided, 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; characterized in that the headrest lifting and adjusting mechanism is a headrest lifting electric screw adjusting mechanism, which includes an electric mechanism, a screw, and a nut; the electric mechanism is mounted on the bottom of the headrest support component and drivenly connected to the screw; the nut is screwed on the screw and fixedly connected to the headrest sliding component; the electric mechanism drives the screw to rotate, which is converted into the nut moving up and down linearly along the screw, thereby driving the headrest sliding component to move up and down along the headrest support component.
2. The electric lifting and adjusting drive mechanism for a headrest according to claim 1, characterized in that, At least one guide rod is provided on the headrest support component, and at least one guide sleeve is provided on the headrest sliding component. The guide sleeve is slidably disposed on the guide rod and guides the movement of the headrest sliding component.
3. A headrest electric lifting and adjusting drive mechanism according to claim 1 or 2, characterized in that, A nut mounting hole is provided on the headrest sliding component, the nut is embedded in the nut mounting hole, and the lead screw passes through the nut mounting hole.