Abstract: The present apparatus includes a park/lock mechanism mounted on a transmission for controlling operation of the transmission and, more particularly, for preventing the transmission from being shifted out of the park position until predetermined vehicle operating conditions are met. The park/lock mechanism is remotely actuated by an actuator physically connected to the park/lock mechanism and electrically connected to the shift lever. The park/lock mechanism includes a linkage having a pair of links connected in an overcenter arrangement, the toggle links providing a mechanical advantage and moving overcenter as the park/lock mechanism moves to a park/lock position. A hydraulic circuit and electrical circuit for operating the actuator is also disclosed.

Abstract: A manual transmission shifter includes a base, and a shift lever pivoted to the base by a ball and socket arrangement. An ignition-key-interlock mechanism includes a bell crank pivoted to the base for movement between a key-interlocked position and a key-released position. The bell crank includes a slot configured to be engaged by a protrusion on the shift lever when the shift lever is moved from neutral to a reverse gear position. The ignition-key-interlock mechanism further includes a key-interlock cable assembly operably connected between the bell crank and the key-receiving ignition device of the vehicle. When the shift lever is moved out of the reverse position, the ignition-key-interlock mechanism is moved to the key-locked position such that the ignition key cannot be removed from the ignition of the vehicle.

Abstract: A vehicle shifter having a cable actuator that is responsive to the ignition key steering lock mechanism of a vehicle and actuates a cable attached to and extending between the key mechanism and the shifter. A cam responsive to the shifting of the shifter's handle is operatively connected to the cable actuator so that when the key is turned off, the cam locks the handle in "Park" and when the ignition key is turned on, the cam can be pivoted by the handle to actuate the cable actuator which actuates the cable to prevent the ignition key from being withdrawn. Preferably, the cable actuator is also a cam which is engaged and pivoted by the first-mentioned cam to actuate the cable. A safety mechanism is provided to prevent damage to the cable and other elements in the event an inadvertent force is exerted on the shift lever.