Patent ID: 6698312
Filing Date: 2004-03-02
Classification: F16H,Y10T

Abstract:
In a vehicle transmission having first and second shafts rotatable in a housing, a spring applied, pressure released brake mechanism for preventing vehicle movement and a torque disconnect mechanism for controlling transmission of torque from the first shaft to the second shaft, an interlock mechanism comprising:an opening formed in the housing through which an operator may access the torque disconnect mechanism; a fluid pressure supply passage for communicating pressurized fluid to the brake mechanism; a dump port formed in the housing in a wall of the opening; a pressure dump passage communicating the supply passage with the dump port; and a plug member mountable in the opening, the plug member closing the dump port and closing communication between the dump passage and the environment when the plug member is mounted in the opening, and the dump port and the dump passage being communicated with the environment when the plug member is removed from the opening.