| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the come-off of a snap ring which regulates the movement of a plate member forming a centrifugal oil pressure cancel chamber to a back face direction.SOLUTION: A belt-type continuously variable transmission CVT 1 which transmits power between two of a primary pulley 1 and a secondary pulley 2 by being wound with a belt 3 comprises: a cylinder part 22b cylindrically connected to a back face side of a movable sheave 22; a fixed piston plate 26 forming a secondary pressure chamber 24; a centrifugal oil pressure cancel plate 28; a snap ring 29; and a ring receiving recessed groove 41. The centrifugal oil pressure cancel plate 28 is pressure-inserted into an internal peripheral face of the cylinder part 22b, and forms a centrifugal oil pressure cancel chamber 31 at a back face side of the fixed piston plate 26. The snap ring 29 is attached to an annular groove 22g formed at the internal peripheral face of the cylinder part 22b, and regulates the movement of the centrifugal oil pressure cancel plate 28 to a back face direction. The ring receiving recessed groove 41 suppresses the deformation of the snap ring 29 to an inside diameter side.</p> |
