Patent ID: 6752735
Filing Date: 2004-06-22
Classification: F16H

Abstract:
A continuously variable transmission apparatus including a combination of a toroidal-type continuously variable transmission with a planetary gear mechanism, said toroidal-type continuously variable transmission comprising:an input shaft transmitting power from an engine; a pair of input disks disposed in such a manner as to be spaced apart from each other in an axial direction of said input shaft; a pair of output disks interposed between said pair of input disks in such a manner as to be opposed to said respective input disks; a pressing mechanism pressing said input disk toward said output disk; a hollow shaft disposed around an outer periphery of said input shaft concentrically with said input shaft, and connecting said pair of input disks to each other, said input shaft defining an oil hole formed in a no-penetrating portion of said input shaft where said input shaft does not penetrate through said hollow shaft, and opened on an outer peripheral surface of said no-penetrating portion, and an oil passage being formed between an inner peripheral surface of said hollow shaft and an outer peripheral surface of a penetrating portion of said input shaft where said input shaft penetrates through said hollow shaft, wherein said oil passage is in communication with said oil hole, and further wherein said oil passage includes a groove formed in the outer peripheral surface of said input shaft and extending in the axial direction of said input shaft; and said planetary gear mechanism, comprising: a first rotary body rotatable by said input shaft; a second rotary body rotatable by said output disk; and, a clutch switching over the rotation movements of said first and second rotary bodies to any of an advancing side high speed mode, an advancing side low speed mode and a retreating mode to transmit the same to said output shaft.