Change-speed transmission for wheeled vehicles

摘要

To selectively provide multi-speed two-wheel drive, multi-speed four-wheel drive and low-speed high-torque four-wheel drive, a change-speed gearing for a motor vehicle includes a rear output shaft coaxial with a front output shaft, a clutch hub fixed to the rear end portion of the front output shaft adjacent to the front end of the rear output shaft, a first hub sleeve axially slidable on the clutch hub to be shifted toward the front end of the rear output shaft to connect the front and rear output shafts, a speed-reduction driven gear freely rotatable on the front output shaft adjacent to the clutch hub and in meshing engagement with a counter gear fixed to a countershaft, and a second hub sleeve axially slidable on a hub portion of the driven gear to be shifted toward the clutch hub after the first hub sleeve is shifted.