Disk for toroidal type continuously variable transmission

Details Disk for toroidal type continuously variable transmission Disk for toroidal type continuously variable transmission

2007-05-22

2007-05-22

Joyce, William C. (Department: 3682)

Friction gear transmission systems or components

Friction gear includes idler engaging facing concave surfaces

Toroidal

C029S893340, C072S360000, C476S073000

Reissue Patent

active

10233481

ABSTRACT:
The disk has a traction surface having a concave-arc-shaped cross section which is interposed between a small diameter end portion and a large diameter end portion. In the central portion of the end face of the disk on the small diameter end portion side, there is formed a through hole which extends through the disk up to the large diameter end portion side end face of the disk, while the inner peripheral surface of the through hole is used as an inside diameter surface of the disk. Here, when, among metal flows existing in the disk, a metal flow, which has such a positional relationship with respect to the surface of the disk that an angle θ formed between a metal flow on the traction surface side and the tangent of the traction surface is smaller than or equal to 30 degrees, is defined as a “metal flow along the disk surface”, the disk is structured such that the “metal flow along the disk surface” exists at least in the traction surface.

REFERENCES:
patent: 4324441 (1982-04-01), Rouverol et al.
patent: 4798077 (1989-01-01), Douglas
patent: 4856167 (1989-08-01), Sabroff et al.
patent: 5556348 (1996-09-01), Kokubu et al.
patent: 5735769 (1998-04-01), Takemura et al.
patent: 5976053 (1999-11-01), Kino et al.

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