B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/79.15
B60C 11/01 (2006.01) B60C 11/11 (2006.01)
Patent
CA 2006573
A pneumatic tire is provided having improved road grip performance on snowy roads. The pneumatic tire incudes a tread portion, and a pair of sidewall portions extending radially-inwardly from an associated tread edge to an associated bead portion. The tread portion includes primary, circumferentially-extending main grooves which are disposed on each associated side of the equator of the tire, and lateral grooves extending from the main grooves to the tread edges to open at the axially-outer end thereof at the face of the sidewall portion. This structure forms, in each shoulder region, a row of shoulder blocks which are arranged circumferentially of the tire along each tread edge. The face of the tread portion includes indentations, and each face of the sidewall portions includes associated protrusions. A pair of the indentations and the protrusions make up a gripping means. Each indentation extends both radially-inwardly from the surface of the tread portion and axially- inwardly from the face of the sidewall, thereby to extend from the tread edge to a point which is axially-inward thereof. The axially-outer end thereof is open at the face of the sidewall, and the axially-inner end terminates an axial distance inwardly of the tread edge at the top of the shoulder block.
Numata Kazuki
Ochiai Kiyoshi
Borden Ladner Gervais Llp
Sumitomo Rubber Industries Limited
LandOfFree
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