LOCKING DEVICE FOR BELLOWS FOR VEHICLE

PURPOSE:To reduce the time in locking/unlocking and increase the speed of the train by providing a tightening piece on the bellows seat, forming a hook part at the tip, providing an advancing/retracting means on the bellows seat, and in addition, an engaging member of the hook part at the front surface of a releasing side bellows frame. CONSTITUTION:A plurality of tightening pieces 32 projecting from the front surface are provided at appropriate positions on a bellows seat 31, and hook parts 32a are formed on the tip, and in addition, an actuator 36 to simultaneously advance/retract a plurality of tightening pieces 32 is provided on the bellows seat 31, and in addition, an engaging member 33 where the hook part 32a of each tightening piece 32 is hooked is provided on the front surface of the releasing side bellows frame 5. While each tightening piece 32 on the bellows 31 seat side is projected, the releasing side bellows frame 5 is advanced to make each engaging member 33 with the hook part 32a, and each tightening piece 32 is simultaneously retracted by operating the actuator 36. This constitution allows each hook part 32a to pull the releasing side bellows frame 5 toward the bellows seat 31 side, executing the connection and locking of the releasing side bellows frame 5 and the bellows seat 31. Reverse operation is executed in unlocking.