Patent ID: 11951777
Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A tire comprising:
a tread configured to come into contact with a road surface;
a pair of sidewalls each connected to an end of the tread and located radially inward of the tread;
a pair of beads each located radially inward of the sidewall;
a carcass located inward of the tread and the pair of sidewalls and extending on and between a first bead and a second bead out of the pair of beads;
a belt located between the tread and the carcass in a radial direction;
an inner liner located inward of the carcass; and
an insulation located between the carcass and the inner liner, wherein
each of the beads includes a core and an apex located radially outward of the core,
the carcass includes only one carcass ply, the carcass ply includes a ply body extending between the core of the first bead and the core of the second bead, and a pair of turned-up portions connected to the ply body and turned up at the cores of the first and second beads,
the carcass ply includes a plurality of carcass cords aligned with each other and a topping rubber covering the carcass cords, each of the carcass cords being an organic fiber cord formed of only one or more organic fibers,
each of the carcass cords has a total fineness of not less than 6000 dtex and not greater than 9000 dtex,
the insulation is located between the first bead and the second bead,
a ratio of a thickness of a portion of the topping rubber located between the insulation and the carcass cords to a thickness of the insulation is not less than 0.2 and not greater than 0.6,
a thickness of the carcass ply is not less than 1.1 mm and not greater than 1.4 mm,
the inner liner includes an inner layer forming a tire inner surface, and an outer layer stacked outward of the inner layer,
the inner layer is a crosslinked product of a rubber composition containing a butyl-based rubber,
the outer layer is a crosslinked product of a rubber composition containing natural rubber, and
a ratio of a complex elastic modulus of the insulation to a complex elastic modulus of the outer layer is not less than 1.0 and not greater than 2.0.