Belt type continuously variable transmission

摘要

Four types of pulley sheaves are common one another in that each of them includes a pulley forming body having a tubular portion inserted around the corresponding shaft and a main body portion extending radially outward from one side of the tubular portion in an axis line direction, the main body portion including a conical friction surface inclined in such a manner as to be positioned closer to the other side of the tubular portion in the axis line direction as it goes from an inner side to an outer side in a radial direction. The tubular portion of each of the pulley forming bodies that forms the driving-side and driven-side fixed pulley sheaves is provided with a fixing hole while the tubular portion of each of the pulley forming bodies that forms the driving-side and driven-side movable pulley sheaves is provided with a sliding slot that allows the tubular portion to move along the axis line of the corresponding shaft only within the predetermined distance.