Pneumatic tire
AssigneeBridgestone Corporation
InventorYoshiyuki Masuko
Life of this patent
Estimating the term…
Abstract
A pneumatic tire includes: a carcass; at least one layer of a belt; and a tread, the belt including an endless belt layer having provided therein treats, each of the treats being formed by covering a cord with rubber and extending in zigzag fashion in the tire circumferential direction, in which in the endless belt layer, a front surface a and a rear surface of each of the treats are reversed at both tire widthwise ends, and on at least one tire widthwise end of the treats, a treat reversal position is, at least partially in the tire circumferential direction, displaced in the tire width direction from another treat reversal position adjacent in tire circumferential direction.
Claims4
A pneumatic tire comprising:
- a carcass extending toroidally between a pair of bead portions;
- a belt formed by at least one belt layer disposed outward of the carcass in a tire radial direction;
- and
- a tread disposed outward of the belt in the tire radial direction,
- the belt layer comprising an endless belt layer having provided therein treats, each of the treats being formed by covering a cord with rubber and directed so as to change direction at both tire widthwise ends toward a tire width direction inner side such that the treat extends in zigzag fashion in the tire circumferential direction, wherein
- in the endless belt layer,
- a front surface and a rear surface of each of the treats are reversed at both tire widthwise ends,
- on at least one tire widthwise end of the treats, a treat reversal position at which front and rear surfaces of each of the treats are reversed is, at least partially in the tire circumferential direction, displaced in the tire width direction from another treat reversal position adjacent in the tire circumferential direction, and
- the treat reversal positions are alternatively displaced between a widthwise end position and a widthwise inner side position in the tire width direction for each tire circumferential round.
Dependencies are inferred from the claim text.