Pneumatic tire

Patent metadata

Field	Value
Publication number	US-2016144671-A1
Application number	US-201414900616-A
Country	US
Kind code	A1
Filing date	Jun 27, 2014
Priority date	Jul 11, 2013
Publication date	May 26, 2016
Grant date	—

Abstract

Plural inner face grooves 40 are formed to tire inner faces of a tire frame member 17 formed from a resin material. The inner face grooves 40 are formed to a region from an inner separation point corresponding to a separation point of a bead portion 12 from a rim 20 as far as an inner end portion 30 IN corresponding to a tread end 30 A of a tread member 30.

First claim

1 . A pneumatic tire, comprising:
a tire frame member that is made of resin and that includes: a bead portion; a side portion connected to an outer side of the bead portion in a tire radial direction; and
a crown portion that is connected to an inner side of the side portion in a tire width direction and on which a tread is disposed;
a tread member that is disposed at an outer side of the tire frame member in the tire radial direction and that configures a tire tread; and
an inner face groove that is formed at an inner face of the tire frame member on at least a portion of a region from an inner separation point corresponding to a separation point from a flange of a rim in an attached state to the rim, to an inner end portion corresponding to an end portion of the tread member.

2 . The pneumatic tire of claim 1 , wherein an inter-groove pitch of a plurality of the inner face grooves is larger than a groove width of the inner face grooves.

3 . The pneumatic tire of claim 1 , wherein a groove spacing between adjacent grooves of a plurality of the inner face grooves is from 1 mm to 10 mm.

4 . The pneumatic tire of claim 1 , wherein a groove depth of the inner face groove is from 0.2 mm to 1.5 mm.

Assignees

• Bridgestone Corp

Inventors

• Kouno Yoshihide
• Kon Seiji

Classifications

• B60C2013/026

  provided at the interior side only · CPC title

• B60C11/00

  Tyre tread bands; Tread patterns; Anti-skid inserts · CPC title

• B60C9/22

  the plies being arranged with all cords disposed along the circumference of the tyre · CPC title

• B60C13/02

  Arrangement of grooves or ribs · CPC title

• B60C19/00 Primary

  Tyre parts or constructions not otherwise provided for · CPC title