Radial tire with spirally wound band having varied winding pitch

Details Radial tire with spirally wound band having varied winding pitch Radial tire with spirally wound band having varied winding pitch

1991-04-29

1995-03-14

Johnstone, Adrienne

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

152529, 152531, 152533, 152537, 156117, B60C 918, B60C 920, B60C 926

Patent

active

053969413

ABSTRACT:
A belted radial tire has a belt composed of a breaker and a band, the breaker disposed radially outside a carcass and comprising at least two plies of cords inclined with respect to the tire equator so that the cords in each ply cross the cords in the next ply, the band disposed on the radially outside of the breaker and composed of a strip of rubberized parallel organic fiber cords which strip is wound spirally and continuously around the breaker from its one edge to the other edge, the number of the organic fiber cords in the strip being in the range of 10 to 25, the winding pitches of the strip changed in the axial direction of the tire so that the pitches are greater in a central region of the breaker than side regions, the pitches in the side regions being substantially a half of the strip width, and the pitches in the central region being not less than the strip width.

REFERENCES:
patent: 3991803 (1976-11-01), Praszek
patent: 4484965 (1984-11-01), Wagner et al.
patent: 4869307 (1989-09-01), Bormann et al.
patent: 4987938 (1991-01-01), Ushikubo et al.
patent: 5076336 (1991-12-01), Watanabe et al.
Mechanics of Pneumatic Tires, ed. Samuel Clark: US Dept. of Transportation, Aug. 1981, pp. 219-220.

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