Chair seat and back structure

a chair seat and back structure technology, applied in the field of can solve the problems of sitters having bad blood circulation, numbness and pain, and requiring a lot of time and labor to make the board-shaped basic part curve smoothly, so as to improve the chair seat and back structure and increase the area

Inactive Publication Date: 2007-07-26
RUSSELL INT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] It is a main object of the present invention to provide an improvement on a chair seat and back structure to overcome the above-mentioned problems. The seat and back structure of the invention includes a loop-shaped part with a space encompassed by an inner edge, and an elastic covering part. The loop-shaped part has a curvature and a loop-shaped holding groove near to a circumferential edge thereof....

Problems solved by technology

Consequently, the sitter will have bad blood circulation and feel numbness and pain after having been seated on the chair for a long period of time.
The sitter will feel hot and uncomfortable after having been seated on the chair for an extended perio...

Method used

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  • Chair seat and back structure
  • Chair seat and back structure

Examples

Experimental program
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Embodiment Construction

[0018] Referring to FIGS. 3 to 5, a first preferred embodiment of a chair seat and back structure in the present invention includes a loop-shaped part 1, and a covering part 2.

[0019] The loop-shaped part 1 has a proper curvature and a loop-shaped holding groove 12 near to a circumferential edge thereof, and it is preferably made of plastic by means of injection molding. And, a space 11 is encompassed by an inner edge of the loop-shaped part 1.

[0020] The covering part 2 is secured over the loop-shaped part 1, and it includes an inner covering sheet 21, a foam part 22, and an outer covering sheet 23, which foam part 22 can be made of foam rubber. The outer covering sheet 23 can be a piece of cloth or alternatively it can be a piece of leather. The foam part 22 is stuck on the inner covering sheet 21, and the outer covering sheet 23 is positioned over the foam part 22.

[0021] In assembly, first the inner covering sheet 21 is positioned over the loop-shaped part 1, in tension and with...

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PUM

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Abstract

A chair seat and back structure includes a loop-shaped part with a space encompassed by an inner edge thereof, and an elastic covering part; the loop-shaped part has a curvature and a loop-shaped holding groove near to a circumferential edge thereof; the covering part positioned over the loop-shaped part, in tension and with a circumferential edge thereof being passed into the loop-shaped holding groove and secured to the loop-shaped part; therefore, the covering part will be changed in the shape by the sitter's body curvature, and the sitter's body will touch the chair with increased area.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a chair seat and back structure, more particularly one, which makes the chair more comfortable to sit on. [0003] 2. Brief Description of the Prior Art [0004] In order for allowing people to sit on chairs for a long period of time, chair seats and backs are usually formed with convexities and concavities according to ergonomics. [0005] Referring to FIGS. 1 and 2, a currently existing chair seat and back structure includes a board-shaped basic part 41, a foam part 42, and a piece of cloth 43. The board-shaped basic part 41 has a proper curvature, and it can be plastic or alternatively it can be wooden. The foam part 42 is stuck on the board-shaped basic part 41, and the cloth 43 is stuck on the foam part 42 and secured to the board-shaped basic part 41. [0006] The chair seat and back structure is found to have the following disadvantages: [0007] 1. When a person is seated on the chair,...

Claims

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Application Information

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IPC IPC(8): A47C31/00
CPCA47C21/022A47C7/282A47C31/023
Inventor KANG, MING-SHIANG
Owner RUSSELL INT CORP
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