To provide a rail rolling stock capable of absorbing impact energy.
In a body of the rail rolling stock comprising a hollow shape 40, an annealed hollow shape is used for the hollow shape 40 constituting an end of a base frame 30. A longitudinal direction of the hollow shape 40 is same as that of the body. The base frame 30 is formed by arranging a plurality of the hollow shapes in a width direction, and joining them by friction agitating joint. When impact load is applied, the hollow shape of an end is deformed in the form of a bellows, and impact force is absorbed. At this moment, the impact force is also applied on a friction agitating joint part, but since it is the friction agitating joint, cracks do not occur, and the hollow shape is not prevented from deforming into bellows.
COPYRIGHT: (C)2005,JPO&NCIPI
Okuno Sumio
Toshiaki Makino
Sagawa New Year
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