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Chair

A chair and seat technology, which is applied in the field of chairs that change the depth of the seat to achieve the effect of improving the sense of fit and suppressing the front offset

Active Publication Date: 2017-10-27
KOKUYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in conventional chairs, when the depth is changed, the load-receiving surface moves with the change, so there is a problem that it is difficult to provide an optimal sense of fit to people of different shapes.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0048] Hereinafter, one embodiment of the case where the present invention is applied to a synchro-tilt type office swivel chair C will be described with reference to the drawings.

[0049] The chair C as Figure 1 to Figure 23 As shown, it has: a leg body 1; a support base 2 supported on the upper part of the leg body 1 and capable of horizontal rotation; a seat 3 arranged on the support base 2; a back support bar 4 of the base 2 ; and a backrest 5 mounted on the back support bar 4 .

[0050]

[0051] leg body 1 as Figure 1 to Figure 6 As shown, it includes: a leg spring type leg base 11 having casters 13 ; and a leg support 12 erected at the center of the leg base 11 . The leg support 12 is a general support mainly composed of a gas spring, and the support base 2 is attached to the upper end of the leg support 12 .

[0052]

[0053] support base 2 as Figure 1 to Figure 6 , Figure 9 as well as Figure 15 As shown, it is supported by the leg body 1 so that it can ...

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PUM

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Abstract

The present invention provides a chair capable of suppressing the occupant from shifting forward and improving the sense of fit when sitting. Among them: a seat (3) having a depth changing unit for changing a sitting depth, the seat (3) having a hard part having a load receiving surface for receiving a load from a seated person (P3), the load receiving surface (P3) is formed with the seat reference point (S1) as the center, and has an inclined portion (P31) that gradually rises forward on the front side of the seat reference point (S1) , the depth changing unit is configured to be able to change the sitting depth of the seat (3) without accompanying movement of the load receiving surface (P3).

Description

technical field [0001] The present invention relates to a chair capable of changing the depth of the seat. Background technique [0002] Conventionally, in a chair having a flat load-receiving surface that receives a load from an occupant, the occupant may deviate forward when the occupant changes a sitting posture. In order to suppress this inconvenience, various chairs in which a part of the seating surface is dented downward have been developed. [0003] On the other hand, various chairs capable of changing the size of the seating surface depth have also been developed (for example, refer to Patent Document 1). However, in conventional chairs, when the depth is changed, the load-receiving surface moves along with the change, so there is a problem that it is difficult to provide an optimal sense of fit to people of different shapes. [0004] Patent Document 1: Japanese Patent Laid-Open No. 2003-284619 Contents of the invention [0005] It is an object of the present i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47C7/24A47C7/02A47C7/44A47C7/00
Inventor 高桥泰崇铃木正义加纳隆芳奥一夫
Owner KOKUYO CO LTD