Double-acting pin-type synchronizer assembly and synchronizer pin assembly

摘要

An improved pin-type synchronizer assembly (10) is provided utilizing improved synchronizer pin assemblies (64, 66) which eliminate the need for separate pre-energizing devices. The synchronizer pin assemblies preferably are mounted at each end thereof to a synchronizer ring (52, 54) and include a large diameter portion (68) adjacent one of the synchronizer rings, a small outer diameter portion (70) adjacent the other of the synchronizer rings, and an intermediate outer diameter portion (72) axially intermediate the large and small outer diameter portions. A baulking ramp (96) is defined between the intermediate and large outer diameter portions. The large outer diameter portion (68) is axially movable relative to the synchronizer ring adjacent thereto, and is resiliently biased by a spring (114) or the like to an offset position away from the synchronizer ring adjacent thereto and against a stop member (112).