Patent ID: 9057432
Filing Date: 2015-06-16
Classification: F16H

Abstract:
1. A drive pulley for a continuously variable transmission comprising: a fixed sheave; a movable sheave axially movable relative to the fixed sheave, the movable sheave being rotationally fixed relative to the fixed sheave; a biasing member biasing the movable sheave axially away from the fixed sheave; at least one arm pivotally connected about a first axis to one of the movable sheave and a portion of the drive pulley axially and rotationally fixed to the fixed sheave, the arm having a ramp surface; and at least one slider in alignment with the ramp surface of the at least one arm, the at least one slider being pivotally connected about a second axis to the other one of the movable sheave and the portion of the drive pulley, the at least one slider having at least three slider surfaces, at least one of the at least three slider surfaces is adapted to contact the ramp surface of the at least one arm, the at least one arm pivoting about the first axis as a speed of rotation of the drive pulley increases, the ramp surface of the at least one arm pushing against one of the slider surfaces of the at least one slider adapted to contact the ramp surface as the at least one arm pivots about the first axis thereby moving the movable sheave axially toward the fixed sheave.