B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/126
B60C 11/11 (2006.01)
Patent
CA 1168136
Abstract of the Disclosure A pneumatic snow tire for use in vehicles traveling on snow roads includes main circumferential grooves each consisting of circumferential groove compo- nents and bias groove components to form zigzag grooves whose zigzag amplitude in width directions of the tread is more than a width of the main circumferential grooves and bias grooves oblique to circumferential directions of the tire extending from connections of the circumferential and bias grooves components of the main circumferential grooves for connecting between the main circumferential grooves and between them and tread edges. With the tread pattern according to the invention, the tire scarcely clogs the grooves in the tread with snow and fully utilizes shearing forces of snow columns at the tread surface without collapsing the snow caught in the grooves, thereby improving its driving and braking performances and achieving the prevention of noise in traveling.
405354
Bridgestone Tire Company Limited
Swabey Ogilvy Renault
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