Two belt over-running clutch pulley

Details Two belt over-running clutch pulley Two belt over-running clutch pulley

1997-06-04

1998-10-27

Hannon, Thomas R.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including separate belt on each of coaxial pulleys...

474 86, F16H 702, F16H 900

Patent

active

058271430

ABSTRACT:
A variable speed drive device for mounting to a rotatable shaft and being driven by first and second belts. The device includes a first pulley of a first diameter and a second pulley of a second diameter, each engaging one of the belts. The first pulley mounts directly to the shaft via a mounting hub extending laterally therefrom. The second pulley is positioned radially outward of the hub and a bearing is located between the two. Also located between the two is a clutch mechanism that engages when the second pulley tries to rotates faster than the first pulley. In this manner, the first pulley drives the shaft at a first speed when the first pulley is rotating faster than the second pulley and the second pulley drives the shaft at a second speed when the second pulley is trying to rotate faster than the first pulley.

REFERENCES:
patent: 2860519 (1958-11-01), Cavanaugh
patent: 2910891 (1959-11-01), Heckenthorn
patent: 3059493 (1962-10-01), Wolfram
patent: 3429192 (1969-02-01), Allen
patent: 4296717 (1981-10-01), Schlagmuller
patent: 4662861 (1987-05-01), Seung et al.
patent: 4867768 (1989-09-01), Kitami et al.

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