Pneumatic tire including fine groove

Details Pneumatic tire including fine groove Pneumatic tire including fine groove

1998-02-06

2000-02-08

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

15220918, 15220928, 425812, B60C 1111, B60C 1112, B60C10700, B60C11500

Patent

active

060218304

ABSTRACT:
A pneumatic tire comprises a tread portion, the tread portion comprising blocks provided with fine grooves for preventing bareness of rubber, the fine grooves having a depth of 0.2 to 0.7 mm and a width of 0.3 to 1.0 mm. The fine groove extends from the angularly narrowest corner of the block to a block edge extending substantially in the circumferential direction. The angularly narrowest corner is provided with a slope having an angle of 30 to 60 degrees to the normal direction to the tread surface.

REFERENCES:
patent: 1380085 (1921-05-01), Walton
patent: 1880430 (1932-10-01), Furnas
patent: 2130594 (1938-09-01), Mooradian
patent: 4690189 (1987-09-01), Bradisse et al.
patent: 4947911 (1990-08-01), Ushikubo et al.
patent: 5109903 (1992-05-01), Watanabe et al.
patent: 5800642 (1998-09-01), Ohya

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