Wheel substitutes for land vehicles – With interposed friction drive belt
Patent
1987-03-27
1989-01-03
Reeves, Robert B.
Wheel substitutes for land vehicles
With interposed friction drive belt
305 39, 305 46, B62D 55205
Patent
active
047952210
ABSTRACT:
A track used to drive a snowmobile over a terrain comprises an endless drive belt having an outer surface which engages the terrain. A plurality of longitudinally spaced cleats are securely mounted on the outer surface of said drive belt, each of said cleats comprising a relatively narrow, elongate, essentially planar fin which extends transversely across at least a portion of the endless belt. The planar fin slants rearward of the direction of travel of the track as the track is driven in its normal operation of propelling the snowmobile forward over the terrain, such that the planar fin makes an acute, included angle with the surface of the track of between about 30 and 75 degrees. The track and the fins of the cleats cooperate to provide forward traction for the snowmobile while simultaneously providing lift to the track and the snowmobile to avoid the tendency of the snowmobile to dig into the terrain and bog down in the terrain.
REFERENCES:
patent: 2992862 (1961-07-01), Fredricks et al.
patent: 3221830 (1965-12-01), Walsh
patent: 3765731 (1973-10-01), Kilbane, Jr.
patent: 3782787 (1974-01-01), Rubel et al.
patent: 3865441 (1975-02-01), Jolliffe
patent: 4035035 (1977-07-01), Husted
patent: 4278302 (1981-07-01), Westimayer et al.
Reeves Robert B.
Stormer Russell D.
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