Patent ID: 9434392
Filing Date: 2016-09-06
CPC Classification: B61D

Claim Text:
1. A collision energy absorption column to be provided in an end part of a railroad vehicle and extend from an end beam toward a roof structure, comprising: an outer member made of metal, the outer member having a channel shape or a hollow shape in a transverse cross section thereof; and an inner member made of reinforced plastic, the inner member being provided along an inner circumference of the outer member and extending in parallel with the outer member, wherein the outer member includes a first area to be coupled to the roof structure, and a second area to be coupled to the end beam, the first and second areas being end parts in a longitudinal direction of the column, the inner member is configured to extend between an upper part of the end beam and a lower part of the roof structure, excluding the first area and the second area, and the outer member at the first and second areas includes through holes, and the inner member has upper and lower ends terminated short of the first and the second areas.