FIELD: tire manufacture. SUBSTANCE: breaker has one layer of steel cord, whereas layers of tire frame are fabricated from polyamide cord. Inclination angles of breaker fibers and top layer of the frame are directed to the opposite sides, and have a ratio ranging from 1.2 to 2. Inclination angles of the upper and other layers of the frame are equal. The ratio between the strength of steel cord fibers of the breaker and polyamide fibers of main layers of the frame are within 1 to 4. EFFECT: improved efficiency of tire manufacture. 2 dwg
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Authors
Dates
1994-05-30—Published
1991-09-25—Filed