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Patent Searching and Data


Title:
IMPACT ABSORBING MEMBER
Document Type and Number:
WIPO Patent Application WO/2014/073084
Kind Code:
A1
Abstract:
A cylindrical impact absorbing member (1) that absorbs impact energy by plastically deforming in a bellows shape when an axial compression load has been received, and is formed using a steel plate having a tensile strength of at least 590 MPa. In this impact absorbing member (1): a cross-sectional shape orthogonal to the axial direction has a substantially cross-shaped closed cross-section having 12 apexes, and an angle (α) is set within the range of 120°≤α≤150°, said angle (α) being formed by straight lines that join apexes at both ends of an oblique side of an octagon formed by connecting, using straight lines, 8 of the 12 apexes, to an apex therebetween; the aspect ratio for the cross-sectional shape is set between 1:1 to 2:1; and the ratio between the length of the longer side out of the vertical side and the horizontal side of the octagon and the length of the oblique side thereof is set between 1:1 and 1.5:1.

Inventors:
KONDO, Osamu (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
SUMINO, Taku (300 Takatsuka-cho, Minami-ku, Hamamatsu-sh, Shizuoka 11, 〒4328611, JP)
KURIAGE, Yoshitaka (300 Takatsuka-cho, Minami-ku, Hamamatsu-sh, Shizuoka 11, 〒4328611, JP)
Application Number:
JP2012/079040
Publication Date:
May 15, 2014
Filing Date:
November 08, 2012
Export Citation:
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Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
SUZUKI MOTOR CORPORATION (300 Takatsuka-cho, Minami-ku Hamamatsu-sh, Shizuoka 11, 〒4328611, JP)
International Classes:
F16F7/12
Domestic Patent References:
WO2011126146A12011-10-13
Foreign References:
US20110015902A12011-01-20
JPH08337183A1996-12-24
JPH11100640A1999-04-13
JP2006123887A2006-05-18
Other References:
See also references of EP 2918868A4
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent Office, Kasumigaseki Building 2-5, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 20, 〒1006020, JP)
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