B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 11/04 (2006.01) B60C 11/03 (2006.01) B60C 11/12 (2006.01)
Patent
CA 2164580
A pneumatic tire provided with a tread pattern, said tread pattern including a wider circumferential straight groove dividing the tread into right and left sides and having 7-25% of the width of the tread, a pair of circumferential ribs provided adjacent to right and left sides of the wider circumferential straight groove, respectively and each having 2.5-15% of the width of the tread, and a pair of narrower circumferential straight grooves provided adjacent to and axially outside the circumferential ribs, respectively, and each having a groove width being 0.5 to 5% of that of the tread and a groove depth being 50 to 100% of that of the wider circumferential straight groove, wherein: each of the circumferential ribs is provided with a plurality of sipes extending obliquely relative to the circumferential direction while being spaced in the circumferential direction, a depth of each sipes being 25 to 100% of the groove depth of the wider circumferential straight groove.
Bridgestone Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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