Variable diameter pulley having extendible elements

Details Variable diameter pulley having extendible elements Variable diameter pulley having extendible elements

1989-06-13

1990-04-10

Bui, Thuy M.

Endless belt power transmission systems or components

Pulley with expansible rim means or pulleys with alternately...

Structure for variably adjusting radius of rim section

474155, 474206, F16H 706, F16H 5552

Patent

active

049156730

ABSTRACT:
A variable diameter pulley having a plurality of belt support members arranged in a circular pattern between a pair of side members. Each side member consists of a pair of adjacent disk members rotatable relative to each other. The disk members have crossing guideways which control the radial position of the belt support members as a function of the rotational orientation between them. Extendible elements are disposed between adjacent belt support members to provide the variable diameter pulley with a generally cylindrical belt engagement surface.

REFERENCES:
patent: 2585634 (1952-02-01), Deletaille
patent: 3956944 (1976-05-01), Tompkins
patent: 4530676 (1985-07-01), Leonard
patent: 4591351 (1986-05-01), Kumm

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