STRUCTURE FOR IMPROVING STRENGTH OF PLATE-LIKE SECTION AND SUBSTANTIALLY CUBOID MEMBER

WIPO Patent Application WO/2013/175651

A1

A polygonal shape of a plate-like section has first and second symmetric axes that are substantially orthogonal to each other. The upper surface of the plate-like section has a protruded section (13), and the outline of the protruded section is line-symmetric with respect to the first and second symmetric axes. A convex short-side peak section (21A) that extends toward the polygonal outline in the direction of the first symmetric axis, concave corner-side valley sections (22A, 22B) that connect to respective ends of the short-side peak section (21A), and convex long-side peak sections (23A, 23B) that connect to the respective corner-side valley sections (22A, 22B) and extend toward the polygonal outline are formed in a lateral half of the outline of the protruded section. At least a pair of lateral ribs (31A, 31B) or a pair of longitudinal ribs (32A, 32B), which extend across the protruded section and open up toward the polygonal outline, are formed either on the upper surface or on the lower surface of the protruded section. Thereby, a structure that mechanically and effectively improves the strength of a substantially polygonal (four or more corners) plastic plate-like section is provided.

INABA HIDEYUKI (JP)
VU MANH CUONG (JP)

PCT/JP2012/074444

November 28, 2013

September 24, 2012

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ASAHI KASEI CHEMICALS CORP (JP)
INABA HIDEYUKI (JP)
VU MANH CUONG (JP)

H05K5/02; F02F7/00

JP2003229516A	2003-08-15
JP2004178425A	2004-06-24
JP2012064874A	2012-03-29
JP2010151103A	2010-07-08
JPH04132445U	1992-12-08
JP2007288930A	2007-11-01
JP2010123933A	2010-06-03

See also references of EP 2854492A4

INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)

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