Sound-suppressor-equipped pneumatic tire, and sound suppressor for tires

Patent metadata

Field	Value
Publication number	US-2016339749-A1
Application number	US-201415112068-A
Country	US
Kind code	A1
Filing date	Aug 1, 2014
Priority date	Feb 7, 2014
Publication date	Nov 24, 2016
Grant date	—

Abstract

The purpose of the present invention is to inhibit deterioration in the external appearance of a sound suppressor, even when used in cold areas. This sound-suppressor-equipped pneumatic tire includes: a pneumatic tire provided with a tread section; and a sponge-like sound suppressor which is affixed to a tire inner cavity-side surface of the tread section, and which extends in the peripheral direction of the tire. In the sound suppressor, a plurality of slits are formed in an exposed surface which faces the tire inner cavity.

First claim

1 . A pneumatic tire with a noise damper comprising:
a pneumatic tire having a tread portion; a circumferentially extending sponge-like noise damper being fixed to a surface on a side of a tire cavity of the tread portion; and the noise damper being provided with a plurality of slits on an exposed surface of the tire cavity.

2 . The pneumatic with a noise damper according to claim 1 ,
wherein the slits have a depth in a range of less than 50% of a thickness of the noise damper.

3 . The pneumatic with a noise damper according to claim 2 ,
wherein the depth is in a range of from 2 to 5 mm.

4 . The pneumatic with a noise damper according to claim 1 ,
wherein the slits are arranged at pitches of from 2 to 10 mm in a circumferential direction of the tire.

5 . The pneumatic with a noise damper according to claim 1 ,
wherein the slits are inclined at an angle of less than 20 degrees with respect to an axial direction of the tire.

6 . The pneumatic with a noise damper according to claim 1 ,
wherein the slits comprise a first slit and a second slit extending in a direction intersecting with the first slit.

7 . The pneumatic with a noise damper according to claim 6 ,
wherein the first slit intersects with the second slit.

8 . A belt-like and sponge-like noise damper for a tire to be fixed to a surface on a side of a tire cavity of a tread portion of a pneumatic tire along a circumferential direction, the noise damper comprising:
a mounting surface for the tread portion and an exposed surface located in an opposite side of the mounting surface; and the exposed surface being provided with a plurality of slits.

9 . The noise damper for a tire according to claim 8 ,
wherein the slits have a depth in a range of less than 50% of a thickness of the noise damper,

10 . The noise damper for a tire according to claim 9 ,
wherein the depth is in a range of from 2 to 5 mm.

11 . The noise damper for a tire according to claim 9 ,
wherein the slits are arranged at pitches of from 2 to 10 mm in a circumferential direction of the tire.

12 . The noise damper for a tire according to claim 8 ,
wherein the slits are inclined at an angle of less than 20 degrees with respect to an axial direction of the tire.

13 . The noise damper for a tire according to claim 8 ,
wherein the slits comprise a first slit and a second slit extending in a direction intersecting with the first slit.

14 . The noise damper for a tire according to claim 13 ,
wherein the first slit intersects with the second slit.

Assignees

• Sumitomo Rubber Ind

Inventors

• Yukawa Naoki

Classifications

• B60C19/002 Primary

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