| 摘要 |
PROBLEM TO BE SOLVED: To properly hold a gap between a tread of a wheel and a brake shoe not only when a wheel shaft is inclined with respect to a truck frame by being steered but also when a journal box is relatively displaced with respect to the truck frame in a steering truck.SOLUTION: A steering truck comprises a truck frame, a wheel shaft, a journal box, a journal box support device, a brake device, and a first pin member. The journal box supports the wheel shaft rotatably and is relatively displaceable with respect to the truck frame. The journal box support device comprises a connection member which connects the journal box and the truck frame, and is supported swingably with an axle center as a rotation center. The first pin member is provided between a connection member and a body frame of the brake device, extends in a vehicle width direction, and transmits the displacement of the connection member to the body frame. The connection member includes a base part, a pivot part which extends from the base part and is swingably connected to the truck frame with the vehicle width direction as an axis line, and a bracket part which projects from the base part and is connected to the first pin member. The axis line of the pivot part of the connection member substantially coincides with the axis line of the first pin member.SELECTED DRAWING: Figure 3 |
