PNEUMATIC TIRE

• US 20110036475A1
• Filed: 10/22/2010
• Published: 02/17/2011
• Est. Priority Date: 04/30/2009
• Status: Abandoned Application

• Current Assignee: Yokohama Rubber Company Limited
• Original Assignee: Yokohama Rubber Company Limited
• Inventors: KOJIMA, Hiroyuki, TOKIZAKI, Hiroshi
• Application Number:
  US12/910,472
• Publication Number:
  US 20110036475A1
• Time in Patent Office: Days
• US Class Current: 152/454
• CPC Class Codes: B60C 13/02 Arrangement of grooves or ribs

Abstract

A pneumatic tire includes: an outer diameter and a total width being set to fall within ranges from 0 mm to 6 mm with respect to lower limits of standard dimensions in a state where the pneumatic tire is fitted to a standard rim and a normal internal pressure is applied; a tread ground contact width at 60% load being set to fall within a range from 60% to 75% of the total width; and a plurality of recesses being provided over a tire circumferential direction and a tire radial direction in a region defined on a tire outer surface excluding an area extending from an inner side end portion of the pneumatic tire to a position within 35% height of a tire cross-section height.

Claims

1. A pneumatic tire comprising:

an outer diameter and a total width being set to fall within ranges from 0 mm to 6 mm with respect to lower limits of standard dimensions in a state where the pneumatic tire is fitted to a standard rim and a normal internal pressure is applied;

a tread ground contact width at 60% load being set to fall within a range from 60% to 75% of the total width; and

a plurality of recesses being provided over a tire circumferential direction and a tire radial direction in a region defined on a tire outer surface excluding an area extending from an inner side end portion of the pneumatic tire to a position within 35% height of a tire cross-section height.

2. The pneumatic tire according to claim 1,

wherein the recesses are formed to have a depth in a range from 0.3 mm to 2 mm.

3. The pneumatic tire according to claim 1,

wherein the recesses are formed to have a diameter in a range from 0.5 mm to 8 mm.

4. The pneumatic tire according to claim 1,

wherein the recesses are formed to have larger size for those positioned more toward an outer side of the pneumatic tire in the tire radial direction.

5. The pneumatic tire according to claim 1,

wherein the recesses are formed to have smaller depth for those positioned more toward an outer side of the pneumatic tire in the tire radial direction.

6. The pneumatic tire according to claim 1,

wherein the recesses are exclusively provided on one side surface of the pneumatic tire in the tire width direction, which becomes an outer side in a width direction of a vehicle when the pneumatic tire is fitted to the vehicle.