| 摘要 |
PROBLEM TO BE SOLVED: To provide a carriage for a railway vehicle in which a side beam can rotate around an axis along a sleeper direction with respect to a cross beam, and which suppresses pitching behavior of the cross beam when longitudinal force occurs.SOLUTION: A carriage 1 for a railway vehicle comprises: a pair of side beams 30, 40 which are substantially extended along a vehicle travel direction, and arranged apart from each other in a sleeper direction; an axle box suspension 22 which supports an axle box 20 arranged in the side beam and holding an end part of a wheel shaft 10 through an axle spring 21; a cross beam 50 which is substantially extended along the sleeper direction and connecting the side beams at the intermediate part; a bearing part 60 by which the right and left side beams can relatively rotate around a rotation axis substantially along the sleeper direction with respect to the cross beam; and a traction gear 100 which connects a vehicle body with the cross beam and transmits longitudinal force. The traction gear includes pitching suppression means 120, 131, 132, 141, 142 which constrains rotation around the rotation axis of the cross beam along the sleeper direction. |
