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Stepless adjustment four-way headrest adjusting mechanism

A technology of stepless adjustment and adjustment mechanism, which is applied to the special position of the vehicle, vehicle seat, transportation and packaging, etc. It can solve the problems of low matching degree of the head, troublesome unlocking, and cumbersome structure, etc., so as to improve the user experience. Ease of operation and improved comfort

Pending Publication Date: 2020-11-13
ET TECH WUXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the headrest can be adjusted in four directions, up and down, front and rear, to match the height of the head of the driver and occupant and the fit between the front and rear; It is adjusted in a few limited gears, resulting in a poor match with the user's head, which is inconvenient to use

Method used

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  • Stepless adjustment four-way headrest adjusting mechanism
  • Stepless adjustment four-way headrest adjusting mechanism
  • Stepless adjustment four-way headrest adjusting mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like image 3 and Figure 4 As shown, the rotating part is a screw mandrel 7, and the screw mandrel 7 is rotatably installed on the upper beam 31 and the middle beam 33 of the support frame 3; The spiral pair cooperates to form a rotation-linear conversion mechanism;

[0041] The structure of the lifting locking mechanism 9 is as follows: comprising a middle beam 33 arranged up and down and a lever 94, the middle beam 33 is fixed between the arms on both sides of the support frame 3 below the lifting frame 6, and runs through the middle of the middle beam 33 and the lever 94 at the same time. The middle part is equipped with a rotating shaft 95; one end of the lever 94 is equipped with an axially vertical inner spline 93, and the other end of the lever 94 is clamped with a drag cable 91, and the drag cable 91 passes upwardly through the middle beam 33 and then goes around to the front of the lifting frame 6; The middle part of the transmission plate 4 penetrates the l...

Embodiment 2

[0052] like Figure 5 and Image 6 As shown, the rotating part is a pinion 97, and the pinion 97 is rotatably mounted on the side wall of the lifting frame 6; the vertical arm wall of the support frame 3 is provided with a tooth structure 99 along the axial direction, that is, the support rod 34 is close to the button assembly 2 The back side of the vertical arm is provided with a toothed structure 99, and the pinion 97 meshes with the toothed structure 99 to form a rotation-linear conversion mechanism; a hole is opened on the sleeve 32 opposite to the toothed structure 99, so that the toothed structure 99 is exposed on the sleeve 32 and meshes with a pinion 97 on the outside of sleeve 32 .

[0053] The structure of the lifting locking mechanism 9 is as follows: the rear frame 61 side wall comprising the lifting frame 6 extends toward the supporting shaft 96 of the push block 21, and the end of the supporting shaft 96 is rotatably fitted with a pinion 97; Shaft 98, the axial...

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PUM

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Abstract

The stepless adjustment four-way headrest adjusting mechanism comprises an outer shell, an inverted-U-shaped supporting frame is installed in the outer shell, the middles of two arms of the supportingframe are jointly sleeved with a lifting frame, a sliding block assembly is installed in the mode of penetrating through the lifting frame front and back in a sliding mode, and the two ends of the sliding block assembly are fixedly installed on the opposite wall faces of the outer shell respectively; a rotation-linear conversion mechanism is mounted between the lifting frame and the supporting frame; alocking mechanism is also arranged and is used for locking the sliding of the sliding block assembly and the rotation of a rotating piece in the rotation-linear conversion mechanism; a force isapplied to the button, the horizontal locking mechanism descends to release the front-back movement freedom degree of the sliding block assembly; the lifting locking mechanism releases the rotationaldegree of freedom of the rotating part; when up-down or front-back force is applied to the outer shell, the sliding block assembly moves front and back relative to the lifting frame along with the outer shell, and the lifting frame moves up and down relative to the supporting frame along with the sliding block assembly and the outer shell, so that stepless adjustment of the headrest in four directions is achieved, simplicity, convenience, quickness and good practicability are achieved, and the user experience is greatly improved.

Description

technical field [0001] The invention relates to the technical field of seat headrests, in particular to a steplessly adjustable four-way headrest adjustment mechanism. Background technique [0002] As an important configuration in automobile safety, the headrest is not only related to the comfort of the driver and passengers, but also supports the cervical spine of the personnel in the case of severe vehicle collision, effectively protecting the cervical spine and even life safety; therefore, the headrest's Comfort and height and position fit are critical. [0003] In the prior art, the headrest can be adjusted in four directions, up and down, front and rear, to match the head height of the driver and occupant and the fit between the front and rear; It is adjusted in a limited number of gears, resulting in a poor matching with the user's head, which is inconvenient to use. Contents of the invention [0004] Aiming at the shortcomings of the above-mentioned existing produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60N2/815B60N2/806
CPCB60N2/815B60N2/806
Inventor 周文华
Owner ET TECH WUXI