B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/80.1
B60C 9/02 (2006.01) B60C 9/00 (2006.01) D07B 1/06 (2006.01)
Patent
CA 1194769
Abstract of the Disclosure A pneumatic radial tire is disclosed, which comprises steel cords having a two or three layer construction represented by a designation of ?+m or ?+m+n as a tire reinforcement, wherein two layers at a center side of a transverse section in the steel cord have the same twisting direction but different twisting pitches. In this steel cord, m filaments constituting an outer layer are arranged so as to enter into an inside of a circumscribed circle enveloping ? filaments of an inner layer at a non-contact region above a predetermined value and have a form ratio of 90-110%. - 22 -
444085
Ogino Takao
Sano Shigehisa
Umezawa Yujiro
Bridgestone Tire Company Limited
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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