Tire, and manufacturing method for same

Patent metadata

Field	Value
Publication number	US-9387725-B2
Application number	US-201113818348-A
Country	US
Kind code	B2
Filing date	Aug 25, 2011
Priority date	Aug 25, 2010
Publication date	Jul 12, 2016
Grant date	Jul 12, 2016

Abstract

Provided is a tire having a circular tire frame formed of at least a thermoplastic resin material, in which the tire includes a reinforcing cord member that forms a reinforcing cord layer on an outer circumference of the tire frame, and the thermoplastic resin material contains at least a polyester-based thermoplastic elastomer.

First claim

The invention claimed is:

1. A tire comprising at least a circular tire frame formed of a thermoplastic resin material,
the tire including a reinforcing cord member and a tread provided on the circular tire frame in this order, the reinforcing cord member forming a reinforcing cord layer on an outer circumference of the tire frame, the reinforcing cord member being a coated reinforcing cord member, the coated reinforcing cord member being coated with a resin material that is physically different from the thermoplastic resin material which forms the tire frame at a cord member, and the resin material for coating being a resin material that does not include a vulcanized rubber, wherein the tread is formed of a rubber, and the cord member does not directly come in contact with the rubber; and
the thermoplastic resin material including at least a polyester-based thermoplastic elastomer, wherein
the content ratio of the polyester-based thermoplastic elastomer in the thermoplastic resin material is from 50% by mass to 100% by mass,
the polyester-based thermoplastic elastomer is a copolymer having a hard segment including an aromatic polyester and a soft segment including at least one selected from the group consisting of an aliphatic polyether and an aliphatic polyester,
the resin material for coating the reinforcing cord member is the same kind as the thermoplastic resin material that forms the tire frame, and
the tire is physically different from a rim and the tire frame includes a bead portion.

2. The tire according to claim 1 , wherein the reinforcing cord layer includes only a layer having the coated reinforcing cord member that is wound around an outer circumference.

3. The tire according to claim 1 , wherein the tire frame includes only a layer that is formed with the thermoplastic resin material.

4. A tire comprising at least a circular tire frame formed of a thermoplastic resin material,
the tire including a reinforcing cord member and a tread provided on the circular tire frame in this order, the reinforcing cord member forming a reinforcing cord layer on an outer circumference of the tire frame, the reinforcing cord member being a coated reinforcing cord member, the coated reinforcing cord member being coated with a resin material that is physically different from the thermoplastic resin material which forms the tire frame at a cord member, and the resin material for coating being a resin material that does not include a vulcanized rubber, wherein the tread is formed of a rubber, and the cord member does not directly come in contact with the rubber; and
the thermoplastic resin material comprising at least a polyester-based thermoplastic elastomer and an elastomer other than the polyester-based thermoplastic elastomer, wherein
the total content ratio of the polyester-based thermoplastic elastomer and the elastomer other than the polyester-based thermoplastic elastomer in the thermoplastic resin material is from 50% by mass to 100% by mass with respect to the total amount of the thermoplastic resin material;
the polyester-based thermoplastic elastomer is a copolymer having a hard segment including an aromatic polyester and a soft segment including at least one selected from the group consisting of an aliphatic polyether and an aliphatic polyester;
the resin material for coating the reinforcing cord member is the same kind as the thermoplastic resin material that forms the tire frame; and
the tire is physically different from a rim and the tire frame includes a bead portion.

5. The tire according to claim 4 , wherein the total content ratio of the polyester-based thermoplastic elastomer and the other elastomer in the thermoplastic resin material is 50 mass % or more with respect to the total amount of the thermoplastic resin material.

6. A tire comprising at least a circular tire frame formed of a thermoplastic resin material,
the tire including a reinforcing cord member and a tread provided on the circular tire frame in this order, the reinforcing cord member forming a reinforcing cord layer on an outer circumference of the tire frame, the reinforcing cord member being a coated reinforcing cord member, the coated reinforcing cord member being coated with a resin material that is physically different from the thermoplastic resin material which forms the tire frame at a cord member, and the resin material for coating being a resin material that does not include a vulcanized rubber, wherein the tread is formed of a rubber, and the cord member does not directly come in contact with the rubber; and
the thermoplastic resin material including at least a polyester-based thermoplastic elastomer and a rubber, wherein
the total content ratio of the polyester-based thermoplastic elastomer and the rubber in the thermoplastic resin material is from 50% by mass to 100% by mass with respect to the total amount of the thermoplastic resin material;
the polyester-based thermoplastic elastomer is a copolymer having a hard segment including an aromatic polyester and a soft segment including at least one selected from the group consisting of an aliphatic polyether and an aliphatic polyester;
the resin material for coating the reinforcing cord member is the same kind as the thermoplastic resin material that forms the tire frame; and
the tire is physically different from a rim and the tire frame includes a bead portion.

7. The tire according to claim 6 , wherein the total content of the polyester-based thermoplastic elastomer and the rubber in the thermoplastic resin material is from 50 mass% to 100 mass % with respect to the total amount of the thermoplastic resin material.

Assignees

• Fudemoto Hiroyuki
• Harada Takashi
• Kouno Yoshihide
• Kon Seiji
• Hasegawa Keiichi
• Iizuka Munenori
• Yako Takayuki
• Bridgestone Corp

Inventors

• Fudemoto Hiroyuki
• Harada Takashi
• Kouno Yoshihide
• Kon Seiji
• Hasegawa Keiichi
• Iizuka Munenori
• Yako Takayuki

Classifications

• B60C5/01

  without substantial cord reinforcement, e.g. cordless tyres, cast tyres · CPC title

• B60C5/007

  made from other material than rubber · CPC title

• Y10T152/10765

  Characterized by belt or breaker structure · CPC title

• B60C9/22 Primary

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

• B60C1/0041 Primary

  Compositions of the carcass layers · CPC title