SYNCHRONOUS CLUTCH MECHANISM

摘要

An interia lock type synchronous clutch mechanism wherein a shifting sleeve (4) is splined to a clutch hub (2) and has circumferentially spaced cam portions (6) on each axial side for engaging axially convex portions (7a) of an elastic ring (7) on each side which convex portions fit within circumferentially spaced notches (8) formed in the rim (2a) of the clutch hub. The convex portions of the elastic ring engage a blocking ring (5) to cause frictional engagement with the selected gear and synchronize the rotation of that gear and the clutch hub for smooth engagement between the shifting sleeve and that gear.