CRUSH BOX AND METHOD FOR MANUFACTURING SAME - NIPPON STEEL & SUMITOMO METAL CORP

Title:

CRUSH BOX AND METHOD FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO/2015/053075

Kind Code:

A1

Abstract:

Provided are: a crush box which is configured so that, even if the plate thickness of a cylinder body for constituting the crush box is less than 1.4 mm, the cylinder body can be satisfactorily welded to a set plate while being abutted against the set plate, and which has high axial crush performance; and a method for manufacturing the crush box. A crush box (1) has a long metallic cylinder body. The cylinder body has a flat polygonal basic cross-sectional shape surrounded by ridge line sections (2-1 to 2-4) extending in the longitudinal direction, and by side wall sections (4). The side wall sections (4) which correspond to the long sides of the cross-section and which are substantially parallel to the direction of the long axis of the cross-section have one or more groove sections (3-1, 3-2) extending in the longitudinal direction. An end of the cylinder body in the longitudinal direction has outwardly facing flanges (5-1 to 5-4).

Inventors:

NISHIMURA RYUICHI (JP)
OTSUKA KENICHIRO (JP)
ITO YASUHIRO (JP)
NAKAZAWA YOSHIAKI (JP)

Application Number:

PCT/JP2014/075191

Publication Date:

April 16, 2015

Filing Date:

September 24, 2014

Export Citation:

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Assignee:

NIPPON STEEL & SUMITOMO METAL CORP (JP)

International Classes:

B60R19/34; B62D25/20; F16F7/00; F16F7/12

Foreign References:

JP2012224099A	2012-11-15
JP2012162108A	2012-08-30
JP2013159254A	2013-08-19
JP2012035771A	2012-02-23
JP2008261493A	2008-10-30
JP2012007649A	2012-01-12
JP2004182088A	2004-07-02
JP3912422B2	2007-05-09
JP2008261493A	2008-10-30

Other References: