SYNCHRONIZER FOR TRANSPORT FACILITY GEAR-BOX Russian patent published in 1999 - IPC

FIELD: mechanical engineering. SUBSTANCE: synchronizer includes gears loosely fitted on shaft and splined cut-in clutch movable in axial direction. Clutch is movable over splines of hub rigidly connected with shaft; profile angle of these splines at base coincides with that of clutch. Splines of hub on side of at least one of its ends have lesser height as compared with center portion. Splines of hub in center portion have lesser angle of profile at vertex as compared with that of clutch splines. These splines may have non-involute or composite profile at width in vertex exceeding width of involute profile of respective involute portion of spline at its base. EFFECT: increased durability and enhanced reliability of synchronizer. 5 dwg