Patent ID: 11919341
Assignee: BRIDGESTONE CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A tire comprising:
a belt layer extending along a tire circumferential direction and extending from one end to other end in a tire width direction; and
a reinforcing layer provided on the outer side of the belt layer in a tire radial direction, wherein
the reinforcing layer comprises:
an inner reinforcing layer in which strip members having a plurality of cords are wound along the tire circumferential direction; and
an outer reinforcing layer provided outside in the tire radial direction of the inner reinforcing layer, in which strip members having a plurality of cords are wound along the tire circumferential direction, wherein
at least either the inner reinforcing layer or the outer reinforcing layer has a gap between the strip members adjacent to each other in the tire width direction
the outer reinforcing layer has at least the gap in a central region in the tire width direction, which is a region from a tire equatorial line up to 30% of a half (TW/2) of a tread width,
the inner reinforcing layer has a continuous portion at least in the center region, in which the strip members are continuously provided without the gap,
the gap and the width of the strip members have a relationship of 1:2, and
a number of the cords forming the strip members of the outer reinforcing layer is smaller than a number of the cords forming the strip members of the inner reinforcing layer.