Park lock device for use with automatic transmission
This patent describes an automatic transmission having an output shaft and a transmission casing, a park lock device comprising: a parking gear coaxially and securedly mounted on the output shaft to rotate therewith; a parking pawl having an axis pivotally connected to the casing for locking and unlocking the parking gear. The pawl includes first and second wing portions which extend in opposing directions from the pivoted connection of the pawl. The first wing portion is formed with a tooth engageable with one of a plurality of tooth gaps of the parking gear. An actuating mechanism includes: a support shaft; a cam member secured along an axial length of the support shaft and being slidably engageable with the second wing portion thereby to reversibly pivot the parking pawl in a direction to achieve locking engagement between the tooth of the pawl and the tooth gap of the parking gear. The actuating mechanism is positioned essentially inboard of the parking pawl with respect to the transmission casing.
- Assignee:
- Nissan Motor Co., Ltd., Yokohama
- Patent Number(s):
- US 4667783
- OSTI ID:
- 6422859
- Resource Relation:
- Patent File Date: Filed date 5 Oct 1984
- Country of Publication:
- United States
- Language:
- English
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