Synchronizer assembly

The utility model provides a synchronizer assembly, tooth hub and shifting sleeve including the cooperation sets up are equipped with at least one recess on the flank of tooth of tooth hub, the both sides of tooth hub are synchronizer ring of joint respectively, and the synchronizer ring cooperation of every recess and shifting sleeve and both sides forms holds the chamber, still includes: at least one elasticity ejector pad, every elasticity ejector pad correspondence are located every and are held the intracavity, and shifting sleeve passes through the elasticity ejector pad and promotes an arbitrary synchronizer ring, an arbitrary elasticity ejector pad includes first elasticity portion and second elasticity portion to and locate the connecting portion between first elasticity portion and the second elasticity portion. Through the technical scheme of the utility model, when shifting sleeve axial displacement, axial thrust after the elasticity ejector pad can produce enlarge synchronizer ring, make synchron