Patent ID: 6688448
Filing Date: 2004-02-10
Classification: F16H,Y10T

Abstract:
A device comprising:a mechanical shifter for shifting between a first shifting state and at least one second shifting state, the shifter being part of a parking brake system of an automatic transmission and the first shifting state corresponding to the state of the engaged parking brake, and the second shifting state corresponding to the state of the disengaged parking brake; an adjusting member coupled with said shifter for shifting between the shifting states; a control member that is coupleable with said adjusting member; a coupling device that is actuatable by an electric signal for coupling said adjusting member and said control member with one another, said coupling device uncoupling said adjusting member and said control member from one another in case of loss of the electric signal; a drive driving said control member; a spring shifting the shifter into the first shifting state and which is coupled with said adjusting member and with an abutment, the spring being tensioned in relation to said adjusting member in a second shifting state such that the shifter is shifted into the first shifting state by said spring means via said adjusting member in an uncoupled state.