초록 ▼

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,

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.

대표청구항 ▼

A track used to drive a snowmobile over a terrain, said track comprising in combination: an endless drive belt having an outer surface which engages the terrain; a plurality of longitudinally spaced cleats securely mounted on the outer surface of said drive belt, each of said cleats comprising a rel

A track used to drive a snowmobile over a terrain, said track comprising in combination: an endless drive belt having an outer surface which engages the terrain; a plurality of longitudinally spaced cleats securely mounted on the outer surface of said drive belt, each of said cleats comprising a relatively narrow, elongate, essentially planar fin, each of said cleats extending transversely across at least a portion of the endless belt with said planar fin thereof angled rearward of the rotation of the track as the track is driven in its normal operation of propelling the snowmobile forward over the terrain, such that said planar fin makes an acute, include angle with the surface of the track of between substantially 30 and 75 degrees; whereby the track and the fins of said cleats cooperate to provide forward traction for said 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.