Pneumatic tire with belt layer including a plurality of...

Details Pneumatic tire with belt layer including a plurality of... Pneumatic tire with belt layer including a plurality of...

2004-12-22

2010-12-28

Johnstone, Adrienne C (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S526000, C156S117000, C156S130000, C156S134000

Reexamination Certificate

active

07857025

ABSTRACT:
A pneumatic tire has two belt layers, each having a plurality of strip pieces formed by pulling together and rubberizing a plurality of steel cords. Strip piece width, strip piece thickness, belt layer cord angle with respect to a tire circumferential direction, numbers of the strip pieces of inner and outer belt layers, and circumferential lengths of the inner and outer belt layers are respectively denoted by A, G, θ, N1, N2, L1and L2. N2is equal to N1, and N1is an integer satisfying L1=N1×A/sin θ. The inner belt layer is formed by joining the N1strip pieces so each side of each strip piece is butted with one side of another strip piece. The outer belt layer is formed by aligning the N2strip pieces on the inner belt layer in the tire circumferential direction with spaces of width 2πG/N2disposed between adjacent strip pieces.

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patent: 2004-261965 (2004-09-01), None

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