Pneumatic tire and producing method thereof
First Claim
1. A pneumatic tire comprising a toroidal carcass extending from a tread portion to a bead core of a bead portion through a side wall portion, and a belt layer including at least one belt ply which is disposed on an outer side of the carcass in a radial direction of the tire and inside of the tread portion, in which belt cords are arranged at an angle of 10 to 40°
- with respect to a tire equator, whereina tread pattern formed on a surface of the tread portion includes a pitch line in which at least two kinds of pattern-constituting units having different pitches in a circumferential direction of the tire are arranged in the circumferential direction of the tire, andthe belt cords are arranged relatively densely on an inner side of the pattern-constituting unit having a small pitch, and are arranged relatively thinly on an inner side of the pattern-constituting unit having a large pitch.
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Accused Products
Abstract
The present invention enhances noise performance and anti-uneven wear performance. A pneumatic tire 1 includes a belt layer 7 including at least one belt ply in which belt cords 15 are arranged at an angle of 10 to 40° with respect to a tire equator C. A tread pattern formed on a surface of the tread portion 2 includes a pitch line 22 in which at least two kinds of pattern-constituting units 21 having different pitches in a circumferential direction of the tire are arranged in the circumferential direction of the tire. The belt cords 15 are arranged relatively densely on an inner side of the pattern-constituting unit 21 having a small pitch, and relatively thinly on an inner side of the pattern-constituting unit 21 having a large pitch.
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Citations
8 Claims
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1. A pneumatic tire comprising a toroidal carcass extending from a tread portion to a bead core of a bead portion through a side wall portion, and a belt layer including at least one belt ply which is disposed on an outer side of the carcass in a radial direction of the tire and inside of the tread portion, in which belt cords are arranged at an angle of 10 to 40°
- with respect to a tire equator, wherein
a tread pattern formed on a surface of the tread portion includes a pitch line in which at least two kinds of pattern-constituting units having different pitches in a circumferential direction of the tire are arranged in the circumferential direction of the tire, and the belt cords are arranged relatively densely on an inner side of the pattern-constituting unit having a small pitch, and are arranged relatively thinly on an inner side of the pattern-constituting unit having a large pitch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- with respect to a tire equator, wherein
Specification