Compact park lock assembly
AssigneeLinamar Corporation
InventorJefferey Ziemba
Life of this patent
Estimating the term…
Abstract
A compact park lock assembly configured to be pulled towards a ramped section of a locking lever during actuation to unlock and lock a park lock gear. The compact park lock assembly includes a guide plate configured to align the park lock assembly during assembly, receive input loads from a pinion drive gear arrangement, position and restrain movement of the guide plate, and provide for sensing of the position of the locking lever during operation. The compact park lock assembly also includes an abutment plate to facilitate mounting of the park lock assembly, a spring section to restrain the guide plate, and a clip section to force and retain the abutment plate section to a housing.
Claims21
A park lock assembly for locking and unlocking a park lock gear of a vehicle comprising;
- a locking lever which is pivotable into and out of engagement with a park lock gear of a vehicle between an unlocked position and a locked, Park, position;
- a guide plate, which slidably supports a park lock roller assembly having rollers which contact said locking lever and actuate said locking lever to lock and unlock the park lock gear, said guide plate being displaceable in a movement direction between locking and unlocking positions for displacing said park lock roller assembly to pivot said locking lever;
- an abutment plate member operatively engaged with said guide plate, which includes a spring section for retaining said guide plate in said locking position and said unlocking position;
- and
- said guide plate including an alignment formation for maintaining alignment of said guide plate during said movement thereof, a rack comprising a plurality of gear teeth that is engagable with and drivable by an actuator gear pinion to displace said guide plate in said movement direction, and a detent feature which is engagable with said spring section for said retaining of said guide plate in said locking position or said unlocking position.
A park lock assembly for locking and unlocking a park lock gear of a vehicle comprising;
- a locking lever which is pivotable into and out of engagement with a park lock gear between an unlocked position and a locked, Park, position;
- a guide plate, which slidably supports a park lock roller assembly having rollers which contact said locking lever and actuate said locking lever to lock and unlock the park lock gear, said guide plate being displaceable in a movement direction between locking and unlocking positions for displacing said park lock roller assembly in said movement direction to pivot said locking lever;
- an abutment plate member operatively engaged with said guide plate, which includes a spring section for retaining said guide plate in said locking position and said unlocking position, said abutment plate member being formed as a single-piece comprising a body portion and said spring section which extends in cantilevered relation from said body portion;
- and
- said guide plate including an alignment formation for maintaining alignment of said guide plate during movement thereof, a rack comprising a plurality of gear teeth that is engagable with and drivable by an actuator gear pinion, and a detent feature which is engagable with said spring section for said retaining of said guide plate, said guide plate being formed as a single-piece defined by first and second side walls, and first and second end walls oriented transverse to said first and second side walls, said first and second side walls being disposed in parallel relation by said second end wall extending therebetween.
Dependencies are inferred from the claim text.