Belt tension control system

Details Belt tension control system Belt tension control system

1988-03-02

1990-01-16

Marmor, Charles A.

Wheel substitutes for land vehicles

Combined or convertible

180 91, B62D 5530

Patent

active

048938831

ABSTRACT:
Hydraulic recoil mechanisms are useful, for example, in maintaining desired tension in the drive belts of vehicles. The hydraulic components of such mechanisms are prone to leakage over an extended period of frictionally driven belted non-usage and thereby allow the tension in the belts to gradually decrease. The subject belt tension control system includes a friction locking device to automatically lock the piston rod relative to the cylinder to maintain a predetermined level of tension in the belt when the pump which furnishes pressurized hydraulic fluid to the system stops operating. Thus, the frictional couple between the belt and the drive wheel is maintained during periods of non-use and the parking brake is effective to hold the vehicle at a stationary position.

REFERENCES:
patent: 3216772 (1965-11-01), Day
patent: 3310127 (1967-03-01), Siber et al.
patent: 3327798 (1967-06-01), Siber et al.
patent: 3901563 (1975-08-01), Day
patent: 3972569 (1976-08-01), Bricknell
patent: 4534269 (1985-08-01), Scerbo et al.

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