Variable speed ratio drive

Details Variable speed ratio drive Variable speed ratio drive

1986-01-28

1987-03-24

Leppink, James A.

Endless belt power transmission systems or components

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

Structure for variably adjusting radius of rim section

F16H 910

Patent

active

046522506

ABSTRACT:
In an automatic variable speed transmission, expansible pulleys function to change the speed ratio between driving and driven shafts. The pulleys are constructed of segments or arms that are pivoted at one end to swing outwardly. Each arm includes a V-shaped groove for receiving a V-belt. At a minimum diameter, the arms form a composite solid body and at a maximum diameter, when each arm is fully pivoted outwardly, a segmented pulley is formed. Automatic speed ratio change is disclosed in both the forward and reverse direction of rotation by proper combination of the pulleys.

REFERENCES:
patent: 616630 (1898-12-01), Pratt
patent: 672962 (1901-04-01), Seymour
patent: 698854 (1902-04-01), Pratt
patent: 2004224 (1935-06-01), Silber
patent: 3661024 (1972-05-01), Cooke
patent: 3935751 (1976-02-01), Lee
patent: 3956944 (1976-05-01), Tompkins
patent: 3969948 (1976-07-01), Pipenhagen, Jr.
patent: 3995508 (1976-12-01), Newell
patent: 4259874 (1981-04-01), Guirriee
patent: 4325702 (1982-04-01), Jacobsson et al.
patent: 4373926 (1983-02-01), Fullerton

Affiliated with

Also associated with

Rating

Variable speed ratio drive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable speed ratio drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable speed ratio drive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1351386