Brakes – Plastic deformation or breakage of retarder element – Crushable element
Reexamination Certificate
2006-01-27
2010-02-23
King, Bradley T (Department: 3657)
Brakes
Plastic deformation or breakage of retarder element
Crushable element
C188S371000
Reexamination Certificate
active
07665586
ABSTRACT:
A crash energy absorption member is provided which has excellent crash energy absorbing properties with the ability of repeated buckling in a stable manner, a high average load at the time of collapse, and the maximum load which is within a range which does not break other members.It is a crash energy absorption member which preferably has a transverse cross-sectional shape of an octagon and which is intended for absorbing impact energy by buckling in the lengthwise direction into a shape of bellows when it receives an impact load. With respect to at least one side forming the transverse cross-sectional shape, when the angle formed by the two sides which adjoin the opposing ends of the one side is α, the relationship between the length L1 of the one side and the distance L2 between the two furthest ends of the two sides interposing the one side satisfies the following equation:in-line-formulae description="In-line Formulae" end="lead"?0<L1/L2<1/{2×sin(α/2)+1}.in-line-formulae description="In-line Formulae" end="tail"?
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Kano Mitsutoshi
Nakazawa Yoshiaki
Takagi Katsutoshi
Tamura Kenji
Yoshida Michitaka
Clark & Brody
King Bradley T
Sumitomo Metal Industries Ltd.
Toyoda Iron Works Co., Ltd.
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