Pneumatic tire having circumferential groove

Details Pneumatic tire having circumferential groove Pneumatic tire having circumferential groove

1996-01-11

2000-02-22

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209R, B60C 1103, B60C10102, B60C11100

Patent

active

060268743

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 under 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 thereby effectively reducing the tire noise.

REFERENCES:
patent: 2642914 (1953-06-01), Palko et al.
patent: 2756798 (1956-07-01), Palko et al.
patent: 3534798 (1970-10-01), Ravenhall
patent: 3674076 (1972-07-01), Dailey
patent: 4462446 (1984-07-01), Goergen et al.
patent: 4736782 (1988-04-01), Kanamaru
patent: 5158626 (1992-10-01), Himuro
patent: 5178698 (1993-01-01), Shibata
patent: 5360043 (1994-11-01), Croyle et al.
patent: 5386861 (1995-02-01), Overhoff et al.
patent: 5386862 (1995-02-01), Glover et al.
Boltze et al, "New Ways to Combat Hydroplaning: Developing the Aqua Contact", 141st Meeting, Spring 1992, Conference Proceedings, May 1992.

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