B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
B60C 11/00 (2006.01)
Patent
CA 2058590
ABSTRACT OF THE DISCLOSURE A pneumatic tire which has a tread portion provided with a pair of circumferentially extending main grooves one on each side of the tire equator to define an axially outermost circumferential part between each main groove and each tread edge each said axially outermost circumferential part provided with lateral grooves extending from the adjacent main groove to the adjacent tread edge to be divided into a row of circumferentially spaced shoulder blocks the shoulder blocks in each row having at least two different circumferential lengths; the first quotient (Lmax/Lmin) of the maximum (Lmax) of the circumferential lengths divided by the minimum (Lmin) thereof being in the range of 1.25 to 2.00; the width Or each main groove changed in the circumferential direction Or the tire such that the larger the circumferential length of the shoulder block;, the larger the width of a main groove part adjacent to this block; and the second quotient (Wmax/Wmin) of the maximum (Wmax) of the main groove width divided by the minimum (Wmin) thereof being in the range of 1.1 to the first quotient (Lmax/Lmin).
Borden Ladner Gervais Llp
Sumitomo Rubber Industries Ltd.
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