Transmission
This paper describes an engagement mechanism. It comprises: a hollow shaft; an engagement outer rotatably mounted about the shaft and including an outer race; an engagement inner about the hollow shaft and angularly fixed relative thereto. The engagement inner including an inner race having central depressions with two inclined surfaces extending upwardly and outwardly in opposite directions from each the central depression; wedging elements between the inner race and the outer race; a cage between the inner race and the outer race, the cage retaining the wedging elements and being angularly movable relative to the inclined surfaces to selectively couple the engagement outer and the engagement inner through the wedging elements with either of the two inclined surfaces, the cage having a firs actuator portion; an actuator mounted in the hollow shaft and angularly fixed relative to the engagement inner. The actuator including a second actuator portion selectively engaging the first actuator portion to angularly displace the cage relative to the inclined surfaces for alignment of the wedging elements with the central depressions and selectively disengaging the first actuator portion to allow movement of the cage for movement of the wedging elements along the inclined surfaces to engage the outer race.
- Assignee:
- NOV; NOV-91-015482; EDB-91-152108
- Patent Number(s):
- US 4987790; A
- Application Number:
- PPN: US 7-333599
- OSTI ID:
- 5160541
- Resource Relation:
- Patent File Date: 4 Apr 1989
- Country of Publication:
- United States
- Language:
- English
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