Patent ID: 7887452

Claim:
A continuously variable transmission comprising: two pulley-type continuously variable transmission mechanisms, each pressing a belt or a chain from the left and right by clamping sides of the belt or the chain with a corresponding movable sheave of an input-shaft-side pulley, a corresponding fixed sheave of the input-shaft-side pulley, a corresponding movable sheave of an output-shaft-side pulley, and a corresponding fixed sheave of the output-shaft-side pulley, and by moving the movable sheave by a corresponding pulley moving device, so that power is transmitted by friction force thereof, the corresponding pulley moving device being provided at a back side of the movable pulley; and a planetary gear mechanism that receives and combines two output components from the two pulley-type continuously variable transmission mechanisms, and that outputs the combined output components as one output component, wherein the two input-shaft-side fixed sheaves are integrally connected and secured to each other while back sides of the two input-shaft-side fixed sheaves abut against each others, wherein one of the output-shaft-side movable sheaves and the other of the output-shaft-side fixed sheaves are provided between one of the output-shaft-side fixed sheaves and the other of the output-shaft-side movable sheaves while the back sides of the one of the output-shaft-side movable sheaves and the other of the output-shaft-side fixed sheaves abut against each other, so as to be rotatable relative to each other and so as to be movable together along an input shaft of a sun gear or along an input shaft of a planetary carrier, the one of the output-shaft-side movable sheaves being consecutively provided with an input shaft of a ring gear or the input shaft of the planetary carrier of the planetary gear mechanism, the other of the output-shaft-side fixed sheaves being provided consecutively with the input shaft of the planetary carrier or the input shaft of the sun gear of the planetary gear mechanism.