PNEUMATIC TYRE CASING Russian patent published in 2005 - IPC

Abstract RU 2247664 C1

FIELD: automotive industry; tyre industry.

SUBSTANCE: invention relates to design of radial-ply tyres for trucks. Proposed tyre casing contains tread, breaker consisting of metal cord and textile layers, carcass, side strips and bead rings. Diameter of metal cord is from 0.83 to 0.91 mm. Metal cord proper is made of metal threads of equal diameter, ratio of diameter of metal thread to diameter of metal cord being from 0.280 to 0.331. ratio of pitch of metal cord in breaker to diameter of metal cord is from 1.978 to 2.168, and linear density of metal cord lies within 2.64 and 2/96 g/m. Ratio of thickness of each rubber-lined layer of metal cord in breaker to diameter of metal cord is from 1.538 to 1.839, and breaking strength of metal cord is not lower than 855±5N.

EFFECT: reduced materials usage, labour input and power consumption at production of tyre.

2 dwg

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RU 2 247 664 C1

Authors

Terekhov A.I.

Dates

2005-03-10Published

2004-04-28Filed