Heavy duty pneumatic tires

Details Heavy duty pneumatic tires Heavy duty pneumatic tires

1990-08-06

1992-11-03

Ball, Michael W.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152DIG1, B60C 1111

Patent

active

051603853

ABSTRACT:
In a heavy duty pneumatic tire, a protrusion is disposed in an intersect portion between circumferential groove and transverse groove in a tread of block pattern, whereby stone capturing is prevented. Furthermore, blind sipe is formed in each block of at least center and second block rows, whereby heel and toe wear as well as shoulder wear are prevented.

REFERENCES:
patent: 3926238 (1975-12-01), Vorih
patent: 4345632 (1982-08-01), Takagawa et al.
patent: 4683928 (1987-08-01), Yahagi
patent: 4884606 (1989-12-01), Matsuda et al.
patent: 4945966 (1990-08-01), Ogawa
Doral "Dune Digger" 1978 Tread Design Guild, 1978, p. 137.
European Search Report Patent Abstracts of Japan, vol. 12, No. 41 (M-666)(2888) Feb. 6, 1988, & JP-A-62 194908 (Sumitomo Rubber Ind. Ltd.) Aug. 27, 1987.
Patent Abstracts of Japan, vol. 11, No. 158 (M-591)(2605) May 22, 1987, & JP-A-61 291203 (Bridgestone Corporation) Dec. 22, 1986.
Patent Abstracts of Japan, vol. 10, No. 37 (M-453)(2094) Feb. 14, 1986, & JP-A-60 189608 (Yokohama Gomu K.K.) Sep. 27, 1985.

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