Double cavity toroidal-type continuously variable transmission

A double cavity toroidal continuously variable transmission, comprising:

• an input shaft;
• a pair of input disks disposed on outer portions of said input shaft in an axial direction of said input shaft, one input disk being fixed to said input shaft, the other input disk being supported thereon so as to be movable in the axial direction thereof;
• a pair of output disks respectively supported on an inner portion of said input shaft in the axial direction thereof so as to be movable in the axial direction thereof, said output disks respectively including drive gears;
• an energizing unit energizing said other input disk toward said one input disk;
• power rollers respectively stored in a pair of cavities formed between each said mutually opposing input disk and output disk, said power rollers being contacted with said input disk and said output disk;
• and,
• an output shaft having driven gears being meshingly engaged with said drive gears of said output disks,
• wherein said input shaft is allowed to shift in the axial direction thereof said output shaft is prevented from shifting in the axial direction thereof, and said drive gears are respectively structured by double helical gears and said driven gears are respectively structured by double helical gears,
• wherein said drive gears are prevented from relatively rotating with respect to each other and said driven gears are prevented from relatively rotating with respect to each other.