Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1991-06-03
1993-07-13
Knable, Geoffrey L.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152526, 156130, B60C 918
Patent
active
052269884
ABSTRACT:
A process for applying a belt structure during the manufacture of a large heavy duty tire such as for an earthmover machine including forming a belt band 5 obtained by adhering together two rubberized fabric strips 8, 9 so as to be laterally offset with respect to each other. Each strip has reinforcing cords 8a, 9a disposed according to symmetrically cross-biased orientations. A belt band made of at least two adhered together strips is wrapped on the carcass 2 of a tire being manufactured with one or more complete turns around the radial outer circumferential surface of the carcass. The end edges 5a, 5b of the belt band 5 are cut perpendicularly to the longitudinal axis thereof and are disposed to overlap each other with the amount of overlap ranging between 20 and 80 mm. In a tire manufactured in accordance with the above process, the belt band 5 wrapped around the carcass 2 in one or more complete turns, has its respective rubberized fabric strips 8, 9 radially superposed in several layers and mutually axially offset in an alternating sequence.
REFERENCES:
patent: 2984282 (1961-05-01), Vittorelli
patent: 3608605 (1971-09-01), Cole
patent: 3756883 (1973-09-01), Gay
patent: 3898116 (1975-08-01), Katagiri et al.
patent: 3972767 (1976-08-01), Frazier
patent: 4135565 (1979-01-01), van der Berg
patent: 4325423 (1982-04-01), Seitz et al.
patent: 4531561 (1985-07-01), Ippen et al.
patent: 4815514 (1989-03-01), Hara et al.
Knable Geoffrey L.
Pirelli Coordinamento Pneumatici S.p.A.
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