Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1987-02-20
1988-10-25
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152549, 152555, B60C 906, B60C 914
Patent
active
047796600
ABSTRACT:
A pneumatic bias tire for use on rough road is disclosed, having a carcass with an improved durability. The carcass composed of not less than twelve carcass plies toroidally extending from a tread to sidewalls wherein rubber sheets are interposed between carcass plies of at least the outermost and the innermost bundles each of which comprises at least two carcass plies, the bead side ends and the tread side ends of the rubber sheets being terminated in specific regions, respectively to provide rubber material having an increased thickness between carcass plies so that the rigidity of carcass at the sidewall portion subjected to large compression strain and at the turned-back ends of carcass plies subjected to shearing strain is improved.
REFERENCES:
patent: 3989083 (1976-11-01), Chrobak
patent: 4296790 (1981-10-01), Sakai et al.
patent: 4349062 (1982-09-01), Tsurunaga et al.
patent: 4438796 (1984-03-01), Abe et al.
patent: 4442880 (1984-04-01), Takahashi
Ball Michael W.
Bridgestone Corporation
Hoch Ramon R.
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