Title:
RAIL VEHICLE EQUIPPED WITH IMPACT-ABSORBING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/067361
Kind Code:
A1
Abstract:
An absorber (10) is composed of an inner plate (14) and an outer plate (12) each having a polygonal cross-section, and a plurality of ribs (16) that couple both plates along the impact load application direction, the absorber being a hollow material extending in the impact load application direction. An outer plate (22) of a front member (20) having a polygonal cross-section is mounted forward of the absorber (10) such that their center axes are approximately coincident with each other. The outer plate (22) of the front member (20) and the inner plate (14) of the absorber (10) are arranged so as to intersect each other when viewed from the impact load application direction. When an impact force is applied to the front member (20), the front member (20) is crushed earlier than the absorber (12) with the intersection as the starting point in such a manner as to enter the inside of the inner plate (14) while the center axis thereof is kept in the impact load application direction, so that the impact force is applied to the inner plate radially from the center axis thereof. Thus, it is possible to avoid the simultaneous application of the load to the entire surface of the absorber at the time of a collision, thereby allowing a reduction in crush peak load and cushioning against impact.
Inventors:
NAKAMURA HIDEYUKI (JP)
MOCHIDA TOSHIHIKO (JP)
YAMAGUCHI TAKASHI (JP)
KIMURA SOTA (JP)
MOCHIDA TOSHIHIKO (JP)
YAMAGUCHI TAKASHI (JP)
KIMURA SOTA (JP)
Application Number:
PCT/JP2014/078598
Publication Date:
May 06, 2016
Filing Date:
October 28, 2014
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B61D15/06; B61G11/16; F16F7/12
Domestic Patent References:
| WO2013056950A1 | 2013-04-25 |
Foreign References:
| JP2007210441A | 2007-08-23 | |||
| JP2008018849A | 2008-01-31 | |||
| EP1900593B1 | 2010-10-13 | |||
| US8100237B2 | 2012-01-24 | |||
| JP2012107660A | 2012-06-07 | |||
| JP2007302081A | 2007-11-22 | |||
| JP2008239083A | 2008-10-09 |
Other References:
See also references of EP 3216669A4
Attorney, Agent or Firm:
Patent Corporate Body Dai-ichi Kokusai Tokkyo Jimusho (JP)
The first international patent firm of a patent business corporation (JP)
The first international patent firm of a patent business corporation (JP)
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