Pneumatic tire including circumferential groove

Resilient tires and wheels – Tires – resilient – Anti-skid devices

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Details

B60C 1103, B60C10102, B60C10304

Patent

active

058302948

ABSTRACT:
A pneumatic tire, which comprises a tread portion provided with a circumferential groove having a pair of side walls, in the axial direction of the tire the circumferential groove is disposed within the ground contacting width of the tread a standard loaded state, the standard loaded state is such that the tire is mounted on its regular rim and inflated to 70% of its maximum air pressure and then loaded with 88% of its maximum load, the axial width of the circumferential groove is in the range of from 0.2 to 0.35 times the ground contacting width, and at least one of the side walls has a nonrectilinear configuration having a plurality of axially deviated parts, whereby the conditions of the resonance of the air in the circumferential groove are continuously changed during running to decrease air resonance noise there by effectively reducing the tire noise.

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Boltze et al, "New Ways to Combat Hydroplaning: Developing the Aquacontact", 141st Meeting, Spring 1992, Conference Proceedings, Louisville, KY, May 1992.
Auto Bild, "Der Reifen, der nicht baden geht", Oct. 1990 (with translation).
Translation of JA 03-139402.
Continental Ad, "Der Conti Aqua Contact", Sep. 1991.

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