Continuously variable transmission

摘要

A forward-go / backward-go changeover mechanism 6 serving as a motive-force connection / disconnection mechanism is accommodated into a housing member 8 fixed to a casing 1. To the forward-go / backward-go changeover mechanism 6 is connected an input end of a primary shaft 3. The housing member 8 rotatably supports the primary shaft 3 via a bearing member 11. On a line intersecting the primary shaft 3 perpendicularly and passing through the bearing member 11 there is provided a load-receiving element 1b, 8b between the housing member 8 and the casing 1. The tension of a belt 17 is received by the load-receiving element 1b, 8b. As a result of this, it is possible to provide a bearing structure of a continuously variable transmission enabling holding the bearing members of the primary and secondary shafts at their regular positions against the tension of the belt and maintaining the belt-alignment as it is being apt, thereby enhancing the durability of the continuously variable transmission.