Pneumatic tire including groove and sipe extending along parabol

Details Pneumatic tire including groove and sipe extending along parabol Pneumatic tire including groove and sipe extending along parabol

1996-12-30

1998-12-22

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209D, 152DIG3, B60C 1103, B60C 1112, B60C11500

Patent

active

058513221

ABSTRACT:
A pneumatic tire comprises a tread portion provided with a pair of circumferential grooves and axial grooves extending from the circumferential grooves to tread edges, each of the axial grooves extending along a parabola of which the parabola axis extends parallel to the tire axial direction and the parabola vertex is disposed on the axially outer edge of the circumferential groove and the parabola focus disposed axially outward of the parabola vertex, and the axially outer edge of the axial groove extending on the parabola from the parabola vertex to the tread edge, whereby a flow of water is improved and thus a flow of air is also improved to improve wet performances without increasing tire noise.

REFERENCES:
patent: D344697 (1994-03-01), Christie
patent: 4057089 (1977-11-01), Johannsen
patent: 4424843 (1984-01-01), Fontaine et al.
patent: 4424844 (1984-01-01), Fontaine
patent: 4424845 (1984-01-01), Baus et al.
patent: 4865098 (1989-09-01), Majerus
Abstract for German 4239475.

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