BACKREST FRAME STRUCTURE AND PRODUCTION METHOD THEREFOR

Title:

BACKREST FRAME STRUCTURE AND PRODUCTION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2013/011852

Kind Code:

A1

Abstract:

The invention is a resin backrest frame structure, in which side frames that extend in parallel on both sides and a cross frame that extends as a sheet across the upper parts of the two side frames are integrally connected and form an arch shape overall, and a production method therefor. The cross frame is formed as a sheet-shaped body, which connects at the upper part thereof to the two side frames on the back surface of the backrest and connects at the lower part thereof to the two side frames on the front surface of the backrest, and which is inclined with respect to the two side frames when seen in longitudinal cross-section. Reinforcing fibers have been disposed on the cross frame at least between the two side frames so as to extend continuously or discontinuously. The invention is able to improve the rigidity particularly of the cross frame while achieving a reduction in overall weight, makes possible the formation of a desirable load transfer pathway from the cross frame to the side frames, and makes possible an easy integral molding of the overall structure.

Inventors:

MATSUMOTO SATOSHI (JP)
YAMAGUCHI KOJI (JP)
KURODA YOSHITO (JP)

Application Number:

PCT/JP2012/067432

Publication Date:

January 24, 2013

Filing Date:

July 09, 2012

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)
MATSUMOTO SATOSHI (JP)
YAMAGUCHI KOJI (JP)
KURODA YOSHITO (JP)

International Classes:

A47C7/40; B60N2/64; B60N2/68

Foreign References:

JPH0331339U	1991-03-27
JPH10134A	1998-01-06
JPS6328751A	1988-02-06
JPS63175956U	1988-11-15
JP2000270961A	2000-10-03
JPS49133321U	1974-11-15
JP2010220748A	2010-10-07
JP2010500198A	2010-01-07
JP2001269996A	2001-10-02
JP2007290585A	2007-11-08
JPS5935126U	1984-03-05

Other References: