Bar-band variable circumference adjustable-drive pulley mechanis

Details Bar-band variable circumference adjustable-drive pulley mechanis Bar-band variable circumference adjustable-drive pulley mechanis

1992-02-20

1994-03-01

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

474101, F16H 5500

Patent

active

052902064

ABSTRACT:
A variable inverted pulley circumference mechanism supported by an external mechanism that locates the pulley halves. Power transfer takes place via either a combination of a variable pulley located inside the variable inverted pulley, working together with fixed planet wheels, or with innovative variable span planet mechanisms working together with a traditional sun wheel or a variable pulley in place of a traditional sun, wherein the variable circumference mechanism consist of one or more surfaces, so that part of the surface is used as needed to form the circumference, and unused parts of the surface is stored opposite of a contact surface of the circumference.

REFERENCES:
patent: 3747721 (1973-07-01), Hoff
patent: 4179946 (1979-12-01), Kanstoroom
patent: 4992066 (1991-02-01), Watson
patent: 5049113 (1991-09-01), Graham, Jr.

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