Tire having sacrificial bridging

Details Tire having sacrificial bridging Tire having sacrificial bridging

1998-06-17

2000-08-15

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

15220923, 152901, 152DIG3, B60C 1104, B60C 1113, B60C10500

Patent

active

061020923

ABSTRACT:
The present invention provides a pneumatic tire having a tread portion comprising a plurality of axially spaced apart essentially longitudinal grooves separating essentially longitudinal ribs. On at least one of said ribs, transverse grooves or cuts repeat in the circumferential direction to form first and second land portions wherein the first land portions comprise blocks having a circumferential length greater than that of the second land portions. Said second land portion acts as a sacrificial bridge which provides traction improvement and minimizes undesirable surface anomalies during the service life of the tire.

REFERENCES:
patent: 4217942 (1980-08-01), Takigawa et al.
patent: 4298046 (1981-11-01), Herbelleau et al.
patent: 4412575 (1983-11-01), Maeda et al.
patent: 4945966 (1990-08-01), Ogawa
patent: 5024260 (1991-06-01), Ochiai
patent: 5180453 (1993-01-01), Fukusawa et al.
patent: 5385189 (1995-01-01), Aoki et al.
patent: 5795415 (1998-08-01), Campana et al.
patent: 5896905 (1999-04-01), Lurois

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