Patent ID: 8109376
Filing Date: 2012-02-07
Classification: F16D,Y10T

Abstract:
1. A device ( 1 ) for operating a shifting element 2 of a drive mechanism 21 the device 1 comprising a piston element ( 4 ) that is positioned in a piston space ( 3 ) in a displaceable arrangement between a first end position and a second end position, and depending upon a hydraulic pressure in the piston space ( 3 ) and a resetting force of a resetting mechanism ( 5 ), acting on the piston element ( 4 ) and opposing an activating force that is equivalent to the hydraulic pressure present in the piston space ( 3 ), the piston element ( 4 ) being operated hydraulically such that a transmission capacity of the shifting element ( 2 ) is reduced by a total force component acting in a direction of the first end position on the piston element ( 4 ) and is increased by a total force component acting in a direction of the second end position on the piston element ( 4 ), and the piston element ( 4 ) being held, by a mechanical holder ( 8 ), against the total force component acting in the direction of the first end position on the piston element ( 4 ) in at least one preset position which is different from the first end position; the piston element ( the at least one locking element ( the actuator ( during activation of the locking element ( rotational motion of the actuator ( the axis along which the locking element (