Patent ID: 6334826
Filing Date: 2002-01-01
Classification: F16H

Abstract:
A V belt type automatic transmission comprising:a driving shaft; a driving sheave mounted on the driving shaft; a driven shaft; a driven sheave mounted on the driven shaft; a V belt wound around the driving sheave and the driven sheave; and a driving sheave thrusting mechanism for moving the driving sheave on the driving shaft; said driving sheave including a fixed sheave part mounted on the driving shaft and restrained from axial movement and rotation relative to the driving shaft, and a movable sheave part axially movably put on the driving shaft; said driving sheave thrusting mechanism including flyweights supported for turning on the movable sheave part, and a spider having parts in contact with the flyweights, fixedly mounted on the driving shaft, restrained from axial movement and rotation relative to the driving shaft and capable of transmitting torque of the driving shaft to the movable sheave part; and guide shoes being placed in circumferential gaps between the spider and engaging parts of the movable sheave part, respectively, to guide the movable sheave part for axial movement relative to the spider, and the guide shoes include a wedge-shaped guide shoe.