Pneumatic tire

Patent metadata

Field	Value
Publication number	US-10675920-B2
Application number	US-201916277955-A
Country	US
Kind code	B2
Filing date	Feb 15, 2019
Priority date	Aug 7, 2012
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

A circumferential direction protrusion is provided extending longitudinally mainly along a tire circumferential direction on a side outward in a tire radial direction from a maximum tire width position on at least a first tire side portion of a tire.

First claim

What is claimed is:

1. A pneumatic tire, comprising:
a circumferential direction protrusion extending longitudinally mainly along a tire circumferential direction disposed in a first tire side portion outward in a tire radial direction from a maximum tire width position,
a plurality of radial direction protrusions that extend longitudinally mainly along the tire radial direction disposed on a second tire side portion, and
an indicator provided on a side wall portion and indicating a vehicle inner or outer side such that the first tire side portion is on the vehicle outer side when the tire mounted on a vehicle,
wherein:
the circumferential direction protrusion is formed divided in the longitudinal direction,
the circumferential direction protrusion is formed extending curved in the longitudinal direction,
a center line of divided portions of the circumferential protrusion in the longitudinal direction includes a component in the tire circumferential direction that is greater than the component in the tire radial direction,
a radial direction protrusion is not disposed on the first tire side portion, and a circumferential direction protrusion is not disposed on the second tire side portion,
a height that the circumferential direction protrusion protrudes from the first tire side portion satisfies a range of not less than 3 mm and not more than 10 mm, and a width in a lateral direction satisfies a range of not less than 0.5 mm and not more than 5 mm,
a height that the radial direction protrusions protrude from the second tire side portion satisfies a range of not less than 1 mm and not more than 10 mm,
a number of the radial direction protrusions disposed in the tire circumferential direction satisfies a range of not less than 10 and not more than 50, and
a width of the radial direction protrusions in the lateral direction satisfies a range of not less than 0.5 mm and not more than 5 mm.

2. The pneumatic tire according to claim 1 , wherein adjacent divided portions wrap each other in the tire circumferential direction.

3. The pneumatic tire according to claim 1 , wherein a longitudinal platform is formed protruding from the first tire side portion along the tire circumferential direction, and the circumferential direction protrusion is formed protruding from the top of the platform.

4. The pneumatic tire according to claim 1 , wherein a whole of the circumferential direction protrusion is disposed in a region that is located from a maximum tire width position to a position from 30% to 80% of the tire radial direction dimension between a maximum tire width position and the tire maximum outer diameter.

5. The pneumatic tire according to claim 1 , wherein the circumferential direction protrusion has a shape in which a width is narrowed at both end portions in the longitudinal direction.

Assignees

• Yokohama Rubber Co Ltd

Inventors

• Kodama Yuji
• Koishi Masataka
• Endo Kenichiro

Classifications

• B60C3/06

  asymmetric · CPC title

• B60C11/01

  Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered · CPC title

• B60C13/02 Primary

  Arrangement of grooves or ribs · CPC title

• B60C5/12

  without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim (B60C5/20 takes precedence) · CPC title

• B60C5/00

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