Adjustable back chair

A backrest and chair technology, applied in the field of adjustable backrest chairs, can solve the problems of unsatisfactory comfort and inability to adjust the backrest, and achieve the effect of simple structure

Inactive Publication Date: 2010-12-29
SUZHOU XINGDAO METAL PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But because its chair backrest is fixedly set and can't carry out the lifting adjustment of chair back, and cause above-mentioned chair to be unable to meet the needs of different users, so its comfortable degree is not ideal enough

Method used

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  • Adjustable back chair
  • Adjustable back chair

Examples

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Embodiment Construction

[0011] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment

[0012] see figure 1 As shown, a chair with an adjustable backrest includes a square seat board 10 and a backrest 11 fixedly connected with the seat board 10. The angle between the backrest 11 and the seat board 10 is an obtuse angle, and the longitudinal section of the backrest 10 is rectangular. It consists of an upper backrest section 11a and a lower backrest section 11b. One end of the lower backrest section 11b is fixedly connected to the seat board 10, and the other end of the lower backrest section 11b is provided with a groove (shown in the figure) for the upper backrest section to penetrate. The lower backrest section 11b is provided with There is a threaded hole communicating with the groove, and the bolt 13 fixes the backrest upper section 11a through the threaded hole. Preferably, the threaded hole is arranged on the side of the ...

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PUM

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Abstract

The invention discloses an adjustable back chair, comprising a seat board and a back fixedly connected with the seat board, wherein the included angle of the back and the seat board is an obtuse angle. The invention is characterized in that the longitudinal cross-section of the back is rectangular; the back is composed of an upper section back and a lower section back; one end of the lower section of the back is fixedly connected with the seat board; the other end of the lower section of the back is provided with a groove which is penetrated by the upper section of the back; the lower section of the back is provided with a screw hole communicated with the groove; and a bolt is fixed on the upper section of the back through the screw hole. The invention is comfortable and simple in structure.

Description

technical field [0001] The invention relates to a chair, in particular to a chair with an adjustable backrest. Background technique [0002] Chairs are a necessity in daily life, especially for those who often need to sit on chairs for office work, a comfortable chair is even more important. [0003] At present, people have designed various comfortable chairs, as the Chinese patent application number is 91223818.6, and the utility model patent on April 22, 1992 discloses a chair, including a chair surface and a chair frame, which is characterized in that: The chair surface is fixed on the chair frame with movable connectors, and the angle of the chair surface can be adjusted freely. Although the utility model can be tilted back and forth at will according to the needs of different users, the user's waist and legs are free from numbness and fatigue, and a better viewing angle can be selected, which is beneficial to physical development and vision. But because its chair back...

Claims

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Application Information

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IPC IPC(8): A47C7/40
Inventor 徐秉峰
Owner SUZHOU XINGDAO METAL PRODS
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