Reinforcement ply in the form of a belt for pneumatic tires for vehicles
AssigneeUniroyal, Inc.
InventorsDionysius Josef Poque, Gerhard Franz-Josef Senger, Hans Jurgen Vogler
Life of this patent
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Abstract
Reinforcement for a pneumatic tire for vehicles, comprising a first, inner belt ply, a pair of lateral strips connected to the free edges of the inner belt ply, the lateral strips and the inner belt ply lying in substantially the same plane, and a second, outer belt ply having a pair of opposed flanges which fold over and hem in the lateral strips and at least the marginal areas of the inner belt ply. The lateral strips are substantially spaced apart from the folded edges of the outer belt ply, so that the outer belt ply is superpositioned on itself in the areas between the folded edges of the outer belt ply and the free edges of the lateral strips.
Claims10
Reinforcements for a pneumatic tire for vehicles, comprising:
- a first, inner belt ply;
- a pair of lateral strips connected to the free edges of the inner belt ply, said lateral strips and inner belt ply lying in substantially the same plane;
- and
- a second, outer belt ply having a pair of opposed flanges which fold over and hem in the lateral strips and at least the marginal areas of the inner belt ply, and wherein the lateral strips are substantially spaced apart from the folded edges of the outer belt ply, so that the outer belt ply is superpositioned on itself in the areas between the folded edges of the outer belt ply and the free edge of the lateral strips, each superpositioned area of the outer belt comprising a width of at least 4% of the width of the tire, whereby the tire rigidity values decrease gradually from a maximum at the equatorial plane of the tire towards a minimum in the shoulder area of the tire.
Dependencies are inferred from the claim text.