Toroidal continuously variable transmission

Patent metadata

Field	Value
Publication number	US-9080652-B2
Application number	US-201213581746-A
Country	US
Kind code	B2
Filing date	Feb 10, 2012
Priority date	Feb 28, 2011
Publication date	Jul 14, 2015
Grant date	Jul 14, 2015

Abstract

The present invention provides a toroidal continuously variable transmission capable of reducing loss which occurs at a bearing and achieving range-widening at low cost with easy disc machinability.
In the toroidal continuously variable transmission, a bearing ring 100 of a ball bearing 6 is formed at a small end surface 3 a of an inner disc 3 . Further, at least a part of the bearing ring 100 is axially overlapped with a traction surface 12 which is a boundary surface between a power roller and the inner disc 3 . Further, a position adjustment member 120 is inserted between support posts 8 a, 8 b and a bearing ring facing to the disc 3 (the other bearing ring of the ball bearing 6 opposed to the bearing ring 100 of the small end surface 3 a ).

First claim

The invention claimed is:

1. A toroidal continuously variable transmission, comprising:
a casing;
a rotary shaft which is rotatably supported in the casing;
a pair of outer discs which is supported at both end portions of the rotary shaft rotatably as being synchronized with the rotary shaft in a state that respective axial-direction one-side surfaces each having an arc-shaped section are mutually opposed;
an inner disc which is supported at a periphery of a middle portion o…

Assignees

• Toyoda Toshiro
• Nishii Hiroki
• Nsk Ltd

Inventors

• Toyoda Toshiro
• Nishii Hiroki

Classifications

• F16H15/04 Primary

  Mechanical Engineering · mapped topic

• F16H15/38 Primary

  Mechanical Engineering · mapped topic