Pneumatic tire
AssigneeSumitomo Rubber Industries, Ltd.
InventorKaori Tanaka
Life of this patent
Estimating the term…
Abstract
A tire 2 includes a pair of beads 12 and a carcass 14. A core 28 of each bead 12 includes a body 34 having a hexagonal cross-section, and a cover 36 covering the body 34. The cover 36 is wrapped around the body 34, and the number of turns the cover 36 is wrapped around the body 34 is greater than or equal to one and smaller than two. The cover 36 includes a plain weave fabric obtained by interlacing warp threads 72 and weft threads 74. The warp threads 72 and the weft threads 74 intersect. An angle of the intersection is greater than or equal to 45° and not greater than 125°. The warp threads 72 are inclined relative to a carcass cord 70. An angle of the inclination is greater than or equal to 22.5° and not greater than 67.5°.
Claims7
A pneumatic tire comprising:
- a tread;
- a pair of sidewalls;
- a pair of beads;
- and
- a carcass, wherein
- the sidewalls extend almost inward from ends, respectively, of the tread in a radial direction,
- the beads are disposed inward of the sidewalls, respectively, in the radial direction,
- the carcass is extended on and between one of the beads and the other of the beads along inner sides of the tread and the sidewalls,
- the carcass includes a carcass ply,
- the carcass ply includes a carcass cord,
- each bead includes a core extending in a circumferential direction,
- the core includes a body having a hexagonal cross-section, and a cover covering the body,
- the cover is wrapped around the body, the number of turns the cover is wrapped around the body being greater than or equal to one and smaller than two,
- the cover includes a plain weave fabric obtained by interlacing warp threads and weft threads,
- the warp threads and the weft threads intersect, and an angle of the intersection is greater than or equal to 45° and not greater than 125°, and
- the warp threads are inclined relative to the carcass cord, and an angle of the inclination is greater than or equal to 22.5° and not greater than 67.5°.
Dependencies are inferred from the claim text.