COLLISION ENERGY-ABSORBING COLUMN AND RAILWAY VEHICLE INCLUDING THE COLLISION ENERGY-ABSORBING COLUMN

摘要

PROBLEM TO BE SOLVED: To provide a collision energy-absorbing column capable of achieving both of weight reduction and sufficient absorption of collision energy.;SOLUTION: A collision energy-absorbing column 1 is provided on an end side of a railway vehicle structure 2, and extends from an edge beam 72 to a roof structure 20. The collision energy-absorbing column 1 includes a metal outer member 3 whose cross-sectional shape is concave or hollow, and a reinforced-plastic inner member 4 provided along the inner circumference of the outer member 3 and extending parallel to the outer member 3. The outer member 3 has two column halves 6 which extend along the column axis of the outer member 3 and are joined in the direction perpendicular to the column axis. The joined portion of the column halves 6 extends along the column axis. The outer member 3, the edge beam 72, and the roof structure 20 are fastened together by a fastening means. The inner member 4 extends from the edge beam 72 to the lower part of the roof structure 20 except the fastened portions.;COPYRIGHT: (C)2014,JPO&INPIT