Gear synchronizer assembly for power transmission
This patent describes a gear synchronizer assembly comprising a gear member rotatable on a transmission shaft, a spline piece formed at one side thereof with a conical portion and thereon with external splines and mounted on a hub portion of the gear member for rotation therewith, and a synchronizer ring mounted on the conical portion of the spline piece for frictional engagement therewith. A hub member is fixedly mounted on the shaft for rotation therewith and has a cylindrical hub portion encircling the synchronizer ring and is formed thereon with external splines. A clutch sleeve encircles the cylindrical hub portion of the hub member and has internal splines in continual engagement with the external splines of the hub member. The clutch sleeve is axially shiftable toward and away from the gear member to be engaged at the internal splines thereof with the external splines of the spline piece. A thrust means is included for moving the synchronizer ring toward the spline piece in shifting operation of the clutch sleeve toward the gear member to effect the frictional engagement of the synchronizer ring with the spline piece. The improvement described here wherein the clutch sleeve is formed at its inner periphery with an internal radial projection axially movable in a corresponding axial groove formed in the cylindrical hub portion of the hub member, and wherein the thrust means comprises a radially contractible annular resilient member arranged in surrounding relationship with the synchronizer ring.
- Assignee:
- Toyota Jidosha Kabushiki Kaisha, Aichi
- Patent Number(s):
- US 4625844
- OSTI ID:
- 7009877
- Resource Relation:
- Patent File Date: Filed date 3 Dec 1984
- Country of Publication:
- United States
- Language:
- English
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