Snow track

Claim 2

In an endless track for snow vehicle, said endless track of the type comprising a single continuous belt of rubber material, said continuous belt to wind around a pair of spaced apart wheels and wherein the belt comprises two longitudinal rows of sprocket tooth apertures to respectively engage the teeth of the sprocket wheel, said belt provided on the outer face thereof with snowgripping means solid with the material of the belt, the improvement which comprises thin resilient longitudinal curved blades transversely embedded in said rubber belt in the neutral plane thereof to define a transverse outer convex shape in said belt, said blades deformable to provide a substantially flat running and bearing surface for said snow vehicle when the same is loaded.

Claim 3

An endless track as claimed in claim 1, wherein said snow-gripping means comprise two rows of transversal ribs each formed between a longitudinal row of tooth apertures and a corresponding outer edge of said belt and two additional rows of ribs each formed on either side of said central longitudinal axis of said belt and extending to a corresponding longitudinal row of tooth apertures, the ribs of both additional rows oppositely inclined with respect to the central longitudinal axis of said track.

Claim 4

An endless track as claimed in claim 2, wherein said sprocket tooth apertures are separated by rubber-bridging portions, and further comprising metal wear clips wrapped around and protectively covering said rubber-bridging portions.

Claim 5

An endless track for snow vehicle, said endless track of the type each comprising a single continuous belt of rubber material, said continuous belt to wind around a pair of spaced apart sprocket wheels, said continuous belt comprising: a. two longitudinal rows of sprocket-tooth apertures, formed near the edges of said belt to respectively engage the teeth of the sprocket wheels; b. said sprocket tooth apertures separated by rubber-bridging portions; c. metal wear clips wrapped around and protectively covering said rubber-bridging portions; d. thin resilient curved metal blades transversely embedded in said rubber belt, said metal blades positioned in the neutral plane of said belt to be aligned with every other pair of oppositely disposed rubber-bridging portions, said metal blades defining a transverse curved shape in said belt but deformable to provide a substantially flat running and bearing surface for said snow vehicle when the same is loaded; e. two rows of transversal ribs each formed between a longitudinal row of tooth apertures and a corresponding outer edge of said belt; and f. two additional rows of ribs each formed on either side of the central longitudinal axis of the belt and extending to a corresponding longitudinal row of tooth apertures, the ribs of both additional rows oppositely inclined with respect to the central longitudinal axis of the belt.

Claim 6

An endless track for snow vehicle, said endless track of the type each comprising a single continuous belt of rubber material, said continuous belt to wind around a pair of spaced apart sprocket wheels, said continuous belt comprising: a. two longitudinal rows of sprocket-tooth apertures, formed near the edges of said belt to respectively engage the teeth of the sprocket wheels; b. said sprocket tooth apertures separated by rubber-bridging portions; c. metal wear clips wrapped around and protectively covering said rubber-bridging portions; d. thin resilient curved metal blades transversely embedded in said rubber belt, said metal blades positioned in the neutral plane of said belt to be aligned with every other pair of oppositely disposed rubber-bridging portions, said metal blades defining a transverse curved shape in said belt but deformable to provide a substantially flat running and bearing surface for said snow vehicle when the same is loaded; e. two rows of transversal ribs each formed between a longitudinal row of tooth apertures and a corresponding outer edge of said belt; and f. two additional rows of ribs each formed on either side of the central longitudinal axis of the belt and extending to a corresponding longitudinal row of tooth apertures, the ribs of both additional rows oppositely inclined with respect to the central longitudinal axis of the belt.