Patent ID: 7163093
Filing Date: 2007-01-16
Classification: F16D,Y10T

Abstract:
1. A synchronizer for a transmission comprising: a synchronizer hub connected to a main shaft of the transmission; a clutch gear connected to an idle gear of the transmission; a synchronizer sleeve connected to the synchronizer hub and slidable thereon to engage with the clutch gear, the synchronizer sleeve provided with sleeve spline teeth each having a sleeve chamfer; and a synchro ring having a plurality of pairs of synchro ring spline teeth, each of the synchro ring spline teeth having a synchro ring chamfer configured for receiving one of the sleeve chamfers, wherein each of the synchro ring chamfers is formed to have a leading edge offset from the center of each of the synchro ring spline teeth, so that a distance between the leading edges becomes greater than a distance between the centers of the synchro ring spline teeth in each of the pairs of the synchro ring spline teeth, and wherein each of the sleeve spline teeth is provided only in an angular position between the synchro ring spline teeth of each of the pairs on the synchronizer sleeve.