BRAKE ACTUATOR APPARATUS AND METHOD FOR ACTUATING A BRAKE

摘要

A brake actuating apparatus comprising a force transmission element (16) operable to transmit a brake actuating force, an abutment member (10), moveable to abut the force transmission element, a piezo-electric device (14) operable on expansion to apply a force between the abutment member and the force transmission element to move the force transmission element in a direction of brake actuation, and a support member (18) moveable independently of the abutment member to support the force transmission element in its new position following expansion of the piezo-electric device.