A SYSTEM FOR PREVENTING GEAR HOPOUT IN A TOOTH CLUTCH IN A VEHICLE TRANSMISSION

摘要

System for preventing gear hopout in a tooth clutch in a vehicle transmission, said tooth clutch comprising an engaging sleeve (117, 217, 351, 551) having sleeve clutch teeth (118, 218, 718, 818, 918) . The tangent function for at least one of driving back-taper angle (69Id) and braking back- taper angle (691b) is larger than the average value of clutch coefficient of friction and spline coefficient of friction multiplied by the sum of unity and the ratio of clutch teeth pitch diameter and spline teeth pitch diameter.