# US 2014/0190610 A1 · Pneumatic tire

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- Number: US 2014/0190610 A1
- Document ID: US20140190610A1
- Status: Published application
- Kind: A1
- Application number: 14/237,735
- Filed: 2012-08-09
- Published: 2014-07-10
- Earliest claimed: 2011-08-10
- Assignees: Sumitomo Rubber Industries, Ltd.
- Inventors: Satoshi Hayashi
- Web page: https://patentgrep.com/patent/US20140190610A1

## CPC

- B60C 13/02: Arrangement of grooves or ribs
- B60C 17/0009: {comprising sidewall rubber inserts, e.g. crescent shaped inserts}
- B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES

## Abstract

A tire having a large number of circular dimples 62 on sidewalls thereof is disclosed. Each dimple 62 has a slope surface 66 and a bottom surface 68. The dimple 62 has a small projection 70. The small projection 70 is annular and is formed on the slope surface 66. A cross-sectional shape of the small projection 70 is substantially a rectangle. The small projection 70 is arranged so as to be concentric with the contour of the dimple 62. The surface area of the slope surface 66 having the small projection 70 is larger than the surface area of the slope surface when it is postulated that the small projection 70 does not exist thereon.

## Claims

### Claim 1

A pneumatic tire comprising, on side surfaces thereof, a large number of dimples and a land which is a part other than the dimples, wherein
each dimple or the land has a small projection.

### Claim 2 (depends on 1)

The tire according to claim 1, wherein
each dimple has a slope surface connected to the land and a bottom surface connected to the slope surface, and
the small projection is formed on the slope surface.

### Claim 3 (depends on 1)

The tire according to claim 1, wherein
each dimple has a slope surface connected to the land and a bottom surface connected to the slope surface, and
the small projection is formed on the bottom surface.

### Claim 4 (depends on 1)

The tire according to claim 1, wherein
a contour of each dimple is a circle,
the small projection is annular, and
the small projection is arranged so as to be concentric with the contour of each dimple.

### Claim 5 (depends on 1)

The tire according to claim 1, wherein
a height of the small projection is equal to or greater than 0.25 mm but equal to or less than 1.0 mm, and
a width of the small projection is equal to or greater than 0.25 mm but equal to or less than 1.0 mm.