Patent ID: 11654723

Abstract:
A tire 1 includes a tread portion 2 provided with a block 3. A block corner portion 5 of the block 3 has a stepped chamfered portion 7 formed therein in which a block height decreases stepwise from a tread surface 3a toward a top portion 3b. The stepped chamfered portion 7 includes upper surfaces 10 parallel to the tread surface 3a, and step corner portions 12 each formed so as to protrude toward a block outer side as a result of the upper surface 10 and a vertical surface 11 or the vertical surface 11 and the tread surface 3a intersecting each other. An angle θ1 between the tread surface 3a and a virtual straight line n3 connecting the step corner portions 12 in a vertical cross-sectional view, of the block corner portion 5, passing through the top portion 3b is 10 to 40 degrees.