RAILROAD VEHICLE WITH COLLISION ENERGY ABSORPTION STRUCTURE

WIPO Patent Application WO/2012/172924

A1

Provided are: a railroad vehicle comprising a collision energy absorption structure requiring a reduced space and capable of reliably absorbing a large amount of energy; a passageway opening frame; and a collision energy absorption structure. A collision energy absorption structure is configured in such a manner that a passageway opening frame (50), which is provided with energy absorption members provided in a form in which the energy absorption members are separated from each other in the longitudinal direction and are fitted to the inside of the passageway opening frame (50), is disposed along the peripheral edge of the passageway opening at each of both ends of a railroad vehicle and is joined to a vestibule diaphragm frame (70) by fastening parts (120) through the energy absorption members. As a result of the configuration, the passageway opening frame (50) has both a function of forming the passageway opening and a function of absorbing collision energy, and this can reduce the space which the collision energy absorption structure occupies. In addition, the energy absorption members are arranged in a planar shape along the passageway opening frame (50), and as a result, the energy absorption members can reliably absorb collision energy without totally buckling.

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KIMURA SOTA (JP)
MOCHIDA TOSHIHIKO (JP)
KANEYASU TADAMASA (JP)

PCT/JP2012/062847

December 20, 2012

May 18, 2012

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HITACHI LTD (JP)
KIMURA SOTA (JP)
MOCHIDA TOSHIHIKO (JP)
KANEYASU TADAMASA (JP)

B61D17/20; B61D17/06; B61G11/16

JP2010241373A	2010-10-28
JP2003231464A	2003-08-19
JPS6342058Y2	1988-11-04
JP2006248449A	2006-09-21
JPH1111306A	1999-01-19
JP2010137699A	2010-06-24
JPH03273957A	1991-12-05
JP2008137592A	2008-06-19
JP2011512290A	2011-04-21
JP2006213105A	2006-08-17
JPH0254754U	1990-04-20
JP2009001178A	2009-01-08
JPS50134594U	1975-11-06

Patent Corporate Body Dai-ichi Kokusai Tokkyo Jimusho (JP)
The first international patent firm of a patent business corporation (JP)

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