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Rotary locking mechanism for chair

A technology of rotation lock and rotation mechanism, which is applied to vehicle seats, movable seats, chairs with vertically adjustable seats, etc., can solve the problems of inconvenience, friction noise, etc., and achieve the purpose of increasing service life, eliminating wear and tear, improving The effect of user experience

Pending Publication Date: 2018-12-11
YANFENG ADIENT SEATING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The locking mechanisms of the above-mentioned prior art are all metal components, and there is friction noise
[0006] In the above-mentioned prior art, when the rotation is adjusted, the handle must be pulled all the time. If the handle is released halfway, the locking member will make a scratching sound with the rotating surface.
There are two situations when rotating and adjusting at the same time: one is to sit on the seat and carry the handle to adjust, and the other is to rotate and adjust outside the car. In this case, it is very inconvenient to keep pulling the handle

Method used

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  • Rotary locking mechanism for chair
  • Rotary locking mechanism for chair
  • Rotary locking mechanism for chair

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] see Figure 1 to Figure 9 , a seat rotation locking mechanism shown in the figure includes a locking mechanism 200, the locking mechanism 200 is installed on the rotating disk 110 in the seat rotating mechanism 100 so as to follow the rotation of the rotating disk 110. Two lock holes 121a are evenly distributed on the outer circumference 121 of the fixed plate 120 in the seat rotation mechanism 100, and the central angle between the two lock holes 121a is 180°. Each lock hole 121a is a waist-shaped lock hole to accommodate two lock pins at the same time.

[0057] The locking mechanism 200 includes a lock bracket 210 , two lock pins 220 , 230 , two lock pin return springs 240 , 250 , an unlock handle 260 and an unlock handle return spring 270 .

[0058] The lock bracket 210 has a first end surface 211 adjacent to the outer circumference 121 of the fixing plate 120 , a second end surface 212 opposite to the first end surface 211 , and a top surface 213 connecting the fir...

Embodiment 2

[0073] In order to further solve the problem that the ends of the first ends 221, 231 of the two lock pins 220, 230 contact and scratch the outer circumference 121 of the fixed plate 120, this embodiment makes further improvements to Embodiment 1, the improvements are: see Figure 14 In the lock hole 121a, there is a sound-absorbing bush 124. In the locked state, the first ends 221, 231 of the two lock pins 220, 230 are inserted into the sound-absorbing bush 124 under the action of the lock pin return springs 240, 250. The rotary disk 110 is locked.

[0074] see Figure 15 and Figure 16 , set the insertion amount of the first ends 221, 231 of the two lock pins 220, 230 into the silencer bushing 124 to be A2, the outward protrusion 121b on the outer circumference 121 of the fixed disc 120 and the rest of the outer circumference 121 of the fixed disc 120 Part has a surface difference dimension A1, wherein A1 is 2.5-3mm larger than A2, so that in the process of rotation adjust...

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Abstract

The invention discloses a rotary locking mechanism for a chair. The rotary locking mechanism comprises a locking mechanism and at least one locking hole, wherein the locking mechanism is arranged on arotary disk in a chair rotating mechanism, and the at least one locking hole is arranged on the outer periphery of a fixed disk in the chair rotating mechanism. The rotary locking mechanism is characterized in that the locking mechanism comprises a lock support fixed to the rotary disk and two or above locking pins horizontally and movably arranged in the lock support; the first end of each locking pin is of a conical columnar structure; the first ends of the locking pins are inserted into the locking holes, the conical columnar structures of the first ends of the locking pins are wedged withthe locking holes, and zero clearance locking is achieved. The rotary locking mechanism disclosed by the invention eliminates fit clearance of the rotating mechanism after locking, so that product grade is improved, and user experience is improved. A locking part is prevented from generating scraping noise with the fixed disk even if an operator loosens an adjusting handle in an adjusting process. As abrasion is eliminated, the product service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of seats, in particular to a seat rotation locking mechanism. Background technique [0002] At present, for rotating seats, the locking mechanisms mainly include the following types: [0003] 1. The locking mechanism uses an integral claw-shaped or tooth-shaped member inserted into the corresponding lock hole to achieve locking. There is a fit gap between the outline of the claw-shaped member or tooth-shaped member and the outline of the lock hole. This type of technology is mainly reflected in the "commercial vehicle seat with locking parts" announced by the Chinese patent authorization announcement number CN103863151B, the "car seat turntable" disclosed by the Chinese patent application publication number CN106427682A, and the Korean KR100799874B1 In the disclosed document, Chinese patent application publication number CN102529756A discloses "a kind of rotating body mechanism of a novel rotating seat". ...

Claims

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Application Information

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IPC IPC(8): A47C3/18A47C7/02A47C7/00B60N2/14
CPCA47C3/18A47C7/00A47C7/02B60N2/146B60N2205/20
Inventor 封庆伟丁佳彬朱斐翔
Owner YANFENG ADIENT SEATING CO LTD
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