Synchronizing mechanism of power transmission

Claim 1

A synchronizing mechanism for use with a power transmission having a rotary shaft and a gear rotatable on said shaft and having external gear splines and an outer conical section, which mechanism comprises a sleeve bearing rotatable with said shaft and positioned adjacent said gear, said sleeve bearing having a hub portion connected to said shaft and a Plurality of substantially equiangularly spaced radial extensions extending from said hub portion, said radial extensions having respectively formed at their outer ends axial extensions one of which is thicker than the others; a synchronizing ring located between said gear and said sleeve bearing and having a radial extension formed on its outer peripheral wall, an inner conical wall engageable with said outer conical wall section of said gear and a land formed on said outer peripheral wall; a sleeve having formed on its inner peripheral wall axial splines engageable with said gear splines on said gear and axial grooves formed on said inner peripheral wall and snugly receiving therein said axial extensions of said sleeve bearing, said axial splines being reduced at their ends through slopes; and a C-spring disposed between said synchronizing ring and said sleeve and having opposed end portions which are spaced from each other a distance greater than the width of said land of said synchronizing ring for circumferentially movably receiving therein said land, said opposed end portions respectively having internally stepped edges which are spaced from each other a distance greater than the width of said one of the axial extensions of the sleeve bearing for circumferentially movably receiving therebetween said one of the axial extensions, said C-spring having an annular slope formed at its outer edge and engageable with said slopes of the splines of the sleeve.