Tread with improved groove design

Details Tread with improved groove design Tread with improved groove design

1991-02-19

1992-05-26

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152DIG1, B60C 1103

Patent

active

051158507

ABSTRACT:
An improved tire tread having a net-to-gross ratio greater than 50% and a plurality of grooves defined by a base spaced between road contacting ribs is described herein. The improved tread is characterized by at least one circumferentially extending radially deep groove having a circumferentially continuous projection in the base of the groove.
The projection has height measured from the base of the groove radially outward of less than one-sixth of the depth of the groove. The projection has a thickness of greater than one-half the height of the projection. The projection is axially spaced from the adjacent road contacting ribs. The projection is connected to the adjacent ribs by a plurality of braces. The braces are of substantially the same height as the projection. Each brace is spaced circumferentially from adjacent braces and connected to both sidewalls of the circumferentially extending adjacent ribs.

REFERENCES:
patent: 2265543 (1941-12-01), Overman
patent: 3682220 (1972-08-01), Verdier
patent: 3727661 (1973-04-01), Hoke

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