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Title:
PORTABLE DISPOSABLE KNOCKDOWN CHAIR
Document Type and Number:
Japanese Patent JP2004357911
Kind Code:
A
Abstract:

To provide a portable, disposable knockdown chair which is packed compactly for reducing the amount of trash and enables an adjustment of a height of the entire legs by using additional packing members such as joint members and an extension leg material.

In the leg material designed to increase a buckling load in the vertical direction by forming the corrugated leg material, alternately folded into mountains and valleys, into a shape of a triangular truss, an integrated rigid structure is obtained by inserting the upper part into a seat board and by inserting the lower part into a band plate face material to penetrate. At the same time, the compact packing and the reduction in volume of the trash are achieved by utilizing the shapes of mountain folds and valley folds. The joint structure with a stable stress for supporting a load is obtained by inserting the extension leg material into the joint member since both an extra extension leg material and a corrugated leg material having a similar shape give many sides for the connecting surfaces and produce greater friction, and the entire height is adjusted.


Inventors:
OUCHI TOSHIYA
Application Number:
JP2003159506A
Publication Date:
December 24, 2004
Filing Date:
June 04, 2003
Export Citation:
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Assignee:
OUCHI TOSHIYA
International Classes:
A47C5/00; (IPC1-7): A47C5/00