Patent ID: 7070026

Claim:
A brake actuating apparatus comprising: a force transmission element positioned at a first position that transmits a brake actuating force; an abutment member that is moveable to cause a piezo-electric device to selectively abut and disengage from the force transmission element; the piezo-electric device being expandable 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 moveable independently of the abutment member to support the force transmission element stationary in a new position following movement of the force transmission element from the first position by expansion of the piezo-electric device and to allow the abutment member to move the piezo-electric device so that the piezo-electric device is expandable to apply the force between the abutment member and the force transmission element to move the force transmission element from the new position in the direction of brake actuation, wherein the support member and the abutment member are co-axially arranged, wherein the abutment member includes a first threaded portion in threaded engagement with a first body member and the abutment member is moveable by relative rotation between the abutment member and the first body member, and wherein the support member includes a second threaded portion in threaded engagement with a second body member and the support member is axially moveable by relative rotation between the support member and the second body member.