Assembly of pneumatic tire and rim

Patent metadata

Field	Value
Publication number	US-9315076-B2
Application number	US-201313952260-A
Country	US
Kind code	B2
Filing date	Jul 26, 2013
Priority date	Aug 2, 2012
Publication date	Apr 19, 2016
Grant date	Apr 19, 2016

Abstract

In an assembly of a pneumatic tire and a rim, in which a tire cavity is formed between the pneumatic tire and the rim by mounting the pneumatic tire on the rim, a noise suppressing body extending in a circumferential direction is disposed inside the tire cavity. The noise suppressing body includes a first sound absorbing material layer arranged apart from an inner surface of a tire tread part through a cavity and a second sound absorbing material layer disposed at the rim side of the first sound absorbing material layer and having lower air permeability than the first sound absorbing material layer.

First claim

What is claimed is:

1. An assembly of a pneumatic tire and a rim, comprising:
a rim;
a pneumatic tire mounted on the rim;
a tire cavity formed between the pneumatic tire and the rim; and
a noise suppressing body disposed inside the tire cavity and extending in a circumferential direction of the tire,
wherein the noise suppressing body comprises (i) a first sound absorbing material layer spaced from an inner surface of a tread part of the pneumatic tire with a cavity therebetween, and (ii) a second sound absorbing material layer disposed at the rim side of the first sound absorbing material layer and having lower air permeability than the first sound absorbing material layer, and
wherein the noise suppressing body has a gas layer between the first sound absorbing material layer and the second sound absorbing material layer.

2. An assembly of a pneumatic tire and a rim, comprising:
a rim;
a pneumatic tire mounted on the rim;
a tire cavity formed between the pneumatic tire and the rim; and
a noise suppressing body disposed inside the tire cavity and extending in a circumferential direction of the tire,
wherein the noise suppressing body comprises (i) a first sound absorbing material layer spaced from an inner surface of a tread part of the pneumatic tire with a gas-filled cavity therebetween, and (ii) a second sound absorbing material layer disposed at the rim side of the first sound absorbing material layer and having lower air permeability than the first sound absorbing material layer,
wherein the second sound absorbing material layer is formed of fiber structure materials or porous materials, and
wherein the noise suppressing body has a third sound absorbing material layer disposed at the rim side of the second sound absorbing material layer and having lower air permeability than the second sound absorbing material layer.

3. The assembly of the pneumatic tire and the rim according to claim 2 ,
wherein the noise suppressing body is disposed annularly along an outer peripheral surface of the rim and non-adhesively, leaving a gap from the outer peripheral surface.

4. An assembly of a pneumatic tire and a rim, comprising:
a rim;
a pneumatic tire mounted on the rim;
a tire cavity formed between the pneumatic tire and the rim; and
a noise suppressing body disposed inside the tire cavity and extending in a circumferential direction of the tire,
wherein the noise suppressing body comprises (i) a first sound absorbing material layer spaced from an inner surface of a tread part of the pneumatic tire with a gas-filled cavity therebetween, and (ii) a second sound absorbing material layer disposed at the rim side of the first sound absorbing material layer and having lower air permeability than the first sound absorbing material layer,
wherein the second sound absorbing material layer is formed of fiber structure materials or porous materials, and
wherein the noise suppressing body has a third sound absorbing material layer disposed at the rim side of the second sound absorbing material layer and having higher air permeability than the second sound absorbing material layer.

5. The assembly of the pneumatic tire and the rim according to claim 4 , wherein
the noise suppressing body has a fourth sound absorbing material layer disposed at the rim side of the third sound absorbing material layer and having lower air permeability than the third sound absorbing material layer.

6. The assembly of the pneumatic tire and the rim according to claim 4 ,
wherein the noise suppressing body is disposed annularly along an outer peripheral surface of the rim and non-adhesively, leaving a gap from the outer peripheral surface.

7. An assembly of a pneumatic tire and a rim, comprising:
a rim;
a pneumatic tire mounted on the rim;
a tire cavity formed between the pneumatic tire and the rim; and
a noise suppressing body disposed inside the tire cavity and extending in a circumferential direction of the tire,
wherein the noise suppressing body comprises (i) a first sound absorbing material layer spaced from an inner surface of a tread part of the pneumatic tire with a cavity therebetween, and (ii) a second sound absorbing material layer disposed at the rim side of the first sound absorbing material layer and having lower air permeability than the first sound absorbing material layer,
wherein the noise suppressing body has a third sound absorbing material layer disposed at the rim side of the second sound absorbing material layer and having lower air permeability than the second sound absorbing material layer, and
wherein the first sound absorbing material layer is formed of a resin film subjected to a perforating process, and the second sound absorbing material layer and the third sound absorbing material layer are formed of fiber structure materials or porous materials.

Assignees

• Sakakibara Kazuhiro
• Suzuki Atsushi
• Fowler-Hawkins Sanford Elliot
• Soma Ippei
• Toyo Tire & Rubber Co
• Acoustic Innovations Co Ltd

Inventors

• Sakakibara Kazuhiro
• Suzuki Atsushi
• Fowler-Hawkins Sanford Elliot
• Soma Ippei

Classifications

• B60C5/002

  filled at least partially with foam material · CPC title

• B60C5/00

  Inflatable pneumatic tyres or inner tubes (B60C1/00, B60C9/00 - B60C17/00 take precedence) · CPC title

• B60C19/002 Primary

  Noise damping elements provided in the tyre structure or attached thereto, e.g. in the tyre interior · CPC title

• Y10T152/10495

  Pneumatic tire or inner tube · CPC title