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Lumbar support of chair

A technology for chairs and sitting boards, which is applied to chairs, reclining chairs, stools, etc., can solve the problems of insufficient inclination angle, inconsistent elastic force, and inability to cope with the user's posture, and achieves the effect of ensuring durability and reducing wear and tear.

Inactive Publication Date: 2013-02-13
朴玲浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, the seat board will also remain horizontal, so it cannot respond to the user's posture
[0012] There is also a technical proposal that a device that can slightly adjust the inclination angle of the seat board is provided on the underside of the seat board, but whether it is for rest purposes or work purposes, the inclination angle is not sufficient or the elastic force does not meet the user's requirements, so it cannot be used. too helpful for widespread use

Method used

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  • Lumbar support of chair
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Examples

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Embodiment Construction

[0053] An embodiment comprising all structures of the present invention such as figure 1 shown.

[0054] The present invention will be described in detail below with reference to the accompanying drawings.

[0055] Figure 2 to Figure 8 Indicates the seat board part equipped with a movable backrest.

[0056] Figure 1 to Figure 10 It shows that in order to make the backrest move in the forward and backward direction, a guide rail (10) and a movable part (6) combined with and moving with the guide rail (10) are fixed on the seat board or the chair body. The backrest includes: a backboard (1) in contact with the user's body, a structure (2) supporting the backboard, a movable part (6) combined with the structure, and a Guide rail (10) for the direction of movement. The lower half of the upper structure (2) and the upper half of the lower structure (5) forming the backboard form a joint that can rotate in the front-rear direction through the connecting rod (3) passing throug...

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PUM

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Abstract

A lumbar support of a chair is provided to alleviate strain of the human body and to prevent accumulation of fatigue. CONSTITUTION: A lumbar support of a chair comprises: a seat plate(1); a structure(2) supporting the seat plate; an elastic member in which one side thereof is fixed on the front of a guide rail and the other side thereof is fixed to a moving unit moving along the guide rail. The lower part of the structure is expanded to the lower part of a seat plate and is combined with the moving unit(6). The moving unit is combined with the guide rail and moves to the front and rear of the seat plate.

Description

technical field [0001] The invention relates to a chair. When a worker sitting on the chair leans forward or backward, the seat board of the chair moves back and forth, thereby effectively supporting the user's body. Background technique [0002] Workers who sit on chairs for a long time will accumulate a lot of fatigue in their bodies, especially their backs, and various effective solutions have been proposed for this reason. There are mainly methods of designing the backrest into a shape suitable for the shape of the human body or making the backrest have an appropriate elastic force, that is, there are various proposals for optimizing the elastic force and optimizing the shape. But in said scheme, when the chair user leans forward or moves the buttocks to the place ahead of the seat board, because of can separate between the backrest and the user's back, so do not have any effect. Someone proposes the scheme of moving the backrest body along the front-back direction for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C1/022A47C9/10
CPCA47C1/023A47C7/46A47C7/443A47C1/024A47C7/445A47C7/441A47C7/402
Inventor 朴玲浩
Owner 朴玲浩
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