| 摘要 |
PROBLEM TO BE SOLVED: To enhance on-ice running performance in the early period of usage with pattern rigidity secured. SOLUTION: A small siping group 12 comprising small sipings 11 whose maximum depth hs is 2 mm or less and both ends of which are broken off on a land section R comprising blocks Rb or rib Rr is provided on the land section R. The small siping group 12 substantially forms a row-shape section 13 which is intermittent in the longitudinal direction with a plurality of the small sipings 11 provided in a line.
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