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Chair backrest structure

A technology of backrest and structure, applied in the field of backrest structure of chairs, which can solve the problems of poor shape, less elongation of backboard 32, difficulty for users to obtain comfort, etc., and achieve the effect of good shape and prevention of strength decline

Inactive Publication Date: 2010-10-06
UCHIDA YOKO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the backrest 30 of the chair described in the conventional patent document 1, when the load applied by the user acts on the backboard 32, the elongation of the backboard 32 is relatively small, and it is difficult for the user to obtain a comfortable feeling. The problem
[0005] And, when the back frame 31 is inclined with respect to the vertically long hole 33 of the back plate 32, since the back frame 31 is arranged in a manner transverse to the vertically long hole 33 near the back frame 31, the vertically long hole near the back frame 31 The shape and size of 33 are different from other elongated holes 33, and there is a problem of poor appearance

Method used

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  • Chair backrest structure
  • Chair backrest structure
  • Chair backrest structure

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Embodiment Construction

[0030] Hereinafter, embodiments of the backrest structure of the chair according to the present invention will be described in detail with reference to the drawings. In addition, the following embodiment is only an example, and this invention is not limited to an embodiment.

[0031] figure 1 A front view showing a chair 1 to which the backrest structure of the chair of the present invention is applied. The chair 1 has: feet 11; a bracket 12 supported by the feet 11 so as to be rotatable; a seat 13 mounted on the bracket 12; The end side extends upward. in addition, Figure 1 to Figure 11 The upper, lower, left, right, front, and rear characters shown in represent directions viewed from the user sitting on the chair 1 .

[0032] Next, the backrest 14 will be described. In addition, since common components can be used for components other than the backrest 14, description is abbreviate|omitted. The backrest 14 includes: a back frame, that is, a back frame 20 formed in a ...

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PUM

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Abstract

A chair backrest structure which fits well and looks good. The backrest structure has a back frame (20) extending upward from the end side of a seat part supported by a leg and a flexible back plate (21) which is provided in the back frame (20) and has a large number of diamond-shaped holes (24) in the form of a net. The back plate (21) is generated in the form of a net in which oblique yarns or belts are knitted, so that when a user's weight acts on the back plate (21), the enlogation amount of the back plate (21) is larger than that of a back plate having vertically long holes of the same width. This constitution makes the backrest fit well and look good.

Description

technical field [0001] The present invention relates to the backrest construction of chairs. Background technique [0002] Conventionally, a chair having a net-shaped backrest is known (for example, refer to Patent Document 1). Such as Figure 12 As shown, the backrest 30 of the chair of Patent Document 1 is provided with a backboard 32 inside a back frame 31 . Such as Figure 13 As shown, the back plate 32 is provided with a plurality of vertically long holes with the same transverse width, thereby forming a net shape. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2007-125219 [0004] However, in the backrest 30 of the chair described in the conventional patent document 1, when the load applied by the user acts on the backboard 32, the elongation of the backboard 32 is relatively small, and it is difficult for the user to obtain a comfortable feeling. The problem. [0005] And, when the back frame 31 is inclined with respect to the vertically long hole 33 o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47C7/40
CPCA47C7/40
Inventor 冈本安都夫井上裕治山崎悟
Owner UCHIDA YOKO LTD