초록 ▼

A snowmobile drive track for travelling on various surfaces including icy surfaces, hardened snow surfaces and semi-hardened surfaces comprises an endless body having, on its ground engaging outer side, projecting profiles having peaks of different height. The first highest peaks bear on icy surface

A snowmobile drive track for travelling on various surfaces including icy surfaces, hardened snow surfaces and semi-hardened surfaces comprises an endless body having, on its ground engaging outer side, projecting profiles having peaks of different height. The first highest peaks bear on icy surfaces, while, on hardened snow surfaces, the second highest peaks also engage the ground; on semi-hardened snow surfaces, all peaks engage the ground.

대표청구항 ▼

[ What is claimed is:] [1.] A snowmobile drive track for travelling on various surfaces including icy surfaces, hardened snow surfaces and semi-hardened snow surfaces, comprising an endless body having a ground engaging outer side and a suspension supporting inner side; said body defining a central

[ What is claimed is:] [1.] A snowmobile drive track for travelling on various surfaces including icy surfaces, hardened snow surfaces and semi-hardened snow surfaces, comprising an endless body having a ground engaging outer side and a suspension supporting inner side; said body defining a central portion and opposite lateral portions interconnected by a plurality of longitudinally spaced crossbar receiving areas extending crosswise of said body in said central, lateral and suspension bearing portions; each said crossbar receiving area displaying, on said outer side of said body, integrally formed projecting profiles; each profile of a crossbar receiving area being formed of a series of co-planar ground engaging peaks; each profile being characterized by peaks of at least three different heights including a highest peak first, an intermediate second peak and a lowest third peak whereby only said first peaks bear on icy surfaces, said first and second peaks engage hardened snow surfaces and all peaks engage semi-hardened snow surfaces.