Reinforcement layer for a tire tread

Details Reinforcement layer for a tire tread Reinforcement layer for a tire tread

2006-03-16

2008-08-26

Fischer, Justin (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S531000, C152S534000, C152S535000, C152S538000

Reexamination Certificate

active

07416006

ABSTRACT:
A tire has a radial carcass reinforcement surmounted radially on the outside by a crown reinforcement which includes at least two working plies and two meridian reinforcement plies. The axially innermost ends of the meridian reinforcement plies are spaced axially apart. Each meridian reinforcement ply has a plurality of reinforcing elements making an angle larger than 60° with the tire's circumferential direction. The crown reinforcement also includes a circumferential reinforcement whose reinforcing elements make an angle no greater than 10° with the tire's equatorial plane. The tensile rigidity of the circumferential reinforcement in the circumferential direction in areas thereof that are radially coincident with the meridian reinforcement plies is lower than the tensile rigidity of the circumferential reinforcement in areas thereof that are not so radially coincident.

REFERENCES:
patent: 4690191 (1987-09-01), Kawasaki
patent: 3202039 (1983-07-01), None
patent: 2 017 019 (1979-09-01), None
patent: 63106104 (1988-05-01), None
patent: 1-282004 (1989-11-01), None
patent: 5-69702 (1993-03-01), None
patent: 6-171308 (1994-06-01), None

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