Pneumatic radial tire

Details Pneumatic radial tire Pneumatic radial tire

B - Operations, Transporting

60

C

152/88

B60C 9/18 (2006.01) B29D 30/08 (2006.01) B60C 9/26 (2006.01)

Patent

CA 1144851

PNEUMATIC RADIAL TIRE ABSTRACT A pneumatic radial tire has a two-ply tread reinforcing breaker with cords of filamentary material. The breaker plies are of un- equal widths and arranged symmetrically with respect to the median circumferential or equatorial plane of the tire, the overall width of the breaker being substantially the width of the overlying tread. In the region of each shoulder of the tread, the edges of one ply are folded back on themselves forming superimposed two-ply regions and three-ply regions enclosing the edges of a narrow, non-folded ply. Surrounding each two-ply region of the folded ply is a cush- ion rubber which is softer than the tread or breaker skimcoat rubbers. The breaker construction substantially eliminates breaker edge separation, resulting in a more durable radial tire which can be recapped to provide further service.

373663

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