Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1985-04-03
1987-06-02
Czaja, Donald E.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152541, 152546, 152554, 152560, B60C 300, B60C 908, B60C 1506
Patent
active
046695192
ABSTRACT:
A pneumatic radial tire is adapted to improve or reduce the rolling resistance and simultaneously to improve the steering stability and riding comfortability against vibration during running without adversely affecting the wet performance and durability by making higher the carcass maximum width position and the carcass curvature reverse position, or enlarging the curvature of the carcass in the radially outer zone of the carcass maximum width position and simultaneously the carcass curvature reverse extent in the radially inner zone of the sidewalls so as to intentionally deviate from the naturally equilibrated configuration.
A method of manufacturing a reduced rolling resistance pneumatic radial tire uses a mold for vulcanizing and forming the tire therein, which mold has a particular shape of cavity having a foot width 20-50% wider than a rim width and diverging progressively from shoulder corresponding portions to the wider foot portion of the cavity.
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Furuya Shin-ichi
Kato Kenshiro
Togashi Minoru
Bokan Thomas
Bridgestone Tire Co. Ltd.
Czaja Donald E.
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