Composite high mobility tire for off-road vehicles
AssigneeB. J. McColl & Company, Ltd.
InventorBruce J. McColl
Life of this patent
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Abstract
A low pressure, pneumatic tire is provided with a flexible tread belt that extends outwardly beyond the sidewalls respectively adjacent thereto when the sidewalls are flexed under normal load. The configuration and stiffness of the belt is such that the load carried by the tire is effectively spread beyond the width of the flexed torus. At the same time, local deformation of the belt can take place in such a way to fold up over the flexed sidewalls to prevent them from damage by shock or abrasion caused by objects striking the sidewalls.
Claims11
Method of fabricating a tire comprising the steps of
- (a) laying a uniform layer of any appropriate gum stock over the surface of a half torus mold;
- (b) positioning a rigid tire flange on supports that locate the tire flange on the inner diameter of the half torus mold and on the surface of the first layer of gum stock;
- (c) threading a rubber sheathed steel cable through peripheral apertures in the tire flange and looping both ends over retractable pins located on the outer diameter of the half torus mold and retaining the ends evenly tensioned and spaced apart to a position adjacent to the tire flange to form a radial reinforcement cord mat;
- (d) applying a second uniform layer of appropriate gum stock over the radial reinforcement cord mat;
- (e) placing a cover mold on the assembly and curing to produce a half tire section having a rigid tire flange therein on its inner diameter and a frill of uniformly spaced reinforcement cord loops extending beyond the cured gum stock on its outer diameter.
A method of fabricating a radially reinforced tire half section comprising the steps of:
- (a) laying a uniform layer of any appropriate gum stock over the surface of one section of a half torus mold;
- (b) mounting a rubber sheathed steel cable on the first layer of gum stock in the form of a succession of trasverse loops to form a radial reinforcement cord mat;
- the loop ends located on the outer diameter projecting out of the half torus mold;
- (c) applying a second layer of appropriate gum stock over the radial reinforcement cord mat;
- (d) placing a cover mold on the assembly and curing such to produce a half tire section having a frill of uniformly spaced reinforcement cable loops extending beyond the outer diameter of the cured half torus.
Dependencies are inferred from the claim text.