SERVICE CAR TRANSMISSION DEVICE

摘要

PROBLEM TO BE SOLVED: To enable a thrust bearing to be avoided from being released from an engaging and supporting part even under a state in which teeth portions of a driving side clutch body and a driven side clutch body are not engaged to each other and their top portions are abutted to each other.SOLUTION: A thrust bearing 80 is placed at an abutting location between a pressing piston 101 and a driven side clutch body 86, the driven side clutch body 86 is formed with an engaging and supporting part 86D positioned at an inner peripheral side of the thrust bearing 80 so as to restrict a positional motion of the thrust bearing 80 in its radial direction and project toward the driving side clutch body 87, a length from the abutting part of the thrust bearing 80 against the pressing piston 101 to the protruding end part of the engaging and supporting part 86D is set to be longer than an engaging margin L1 in a direction along an axis center between the teeth part 87A of the driving side clutch body 87 and the teeth part 86A of the driven side clutch body 86.SELECTED DRAWING: Figure 7