Continuously variable-speed drive

Details Continuously variable-speed drive Continuously variable-speed drive

1991-09-23

1993-06-15

Herrmann, Allan D.

Friction gear transmission systems or components

Friction gear includes idler engaging facing concave surfaces

Toroidal

F16H 1512

Patent

active

052188779

ABSTRACT:
An input disc and/or an output disc of a variable-speed drive, as of the toroidal type, has a central boss portion for attachment to a shaft and a radially extending flange portion with an annular concave power-roller engaging surface. An opposite surface of the flange portion is an annular convex surface having a plurality of radial reinforcement ribs formed thereon. In one preferred form, the ribs have upper surfaces which are inclined so that the front edges thereof are lower than the rear edges thereof in a rotational direction of the disc.

REFERENCES:
patent: 768114 (1904-08-01), Dean
patent: 875962 (1908-01-01), Stanley
patent: 1228208 (1917-05-01), Hill
patent: 3115044 (1963-12-01), Andrews
patent: 4928542 (1990-05-01), Nakano
patent: 5007298 (1991-04-01), Machida

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