Importance

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Abstract

A road wheel for a track laying vehicle comprising a metallic disc and rim part wherein the rim portion of the part is of toroidal geometry. An elastomeric tire .[.tread.]. .Iadd.part .Iaddend.is bonded to the outer surface of the rim part and has a .Iadd.tread with .Iaddend.a cylindrical outer face adapted for engagement with the track treads of the track laying vehicle. The cross sectional thickness of the metallic disc and rim part is substantially uniform throughout the same. The rim portion has a radially in-turned flange at the free end thereof extending at an acute angle to the axis of the road wheel. The disc portion merges with the rim portion integrally through a bend portion and extends radially inwardly a given distance to provide a track lug wear surface. The disc portion also has a reverse bend offset axially toward the outer free edge of the rim portion to provide clearance for track guide lugs in the operation of said wheel. The rim portion has a radius of curvature taken in radial cross section in a plane including the wheel axis generally equal to the radius of the disc-rim wheel part measured in a plane at right angles to the wheel axis from the wheel axis to the other curved surface of the rim part. The tire .[.tread.]. has axially opposite sloping side walls inclined in a radially inward divergent relationship to one another. A method of making the road wheel is also disclosed.

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First Claim