Pneumatic tire including a tread with circumferential grooves

Details Pneumatic tire including a tread with circumferential grooves Pneumatic tire including a tread with circumferential grooves

1993-08-20

1995-09-19

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

B60C 1113

Patent

active

054508851

ABSTRACT:
A pneumatic tire which comprises a tread provided with circumferential grooves extending continuously circumferentially of the tire,
in the cross section of the tire including the tire axis, the cross sectional shape of each of the circumferential grooves being composed of a pair of oppositely opposed radially outer portions extending radially inwardly from the tread surface,
the outer portions being curved such that the axial width therebetween increases radially outwardly and the inclination angle of each outer portion to the groove center line (CL) increases radially outwardly, whereby running noise, especially air resonance noise and air pumping noise, is reduced.

REFERENCES:
patent: 3543827 (1970-12-01), Roberts et al.
patent: 4913207 (1990-04-01), Harakon et al.
patent: 5000239 (1991-03-01), Brayer et al.
patent: 5178698 (1993-01-01), Shibata
patent: 5238038 (1993-08-01), Glover et al.

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