B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/95.2
B60C 9/08 (2006.01) B60C 9/02 (2006.01) B60C 15/06 (2006.01)
Patent
CA 1275895
ABSTRACT OF THE DISCLOSURE The invention relates to a pneumatic radial tire for heavy duty vehicles such as trucks, buses, etc., having an improved reinforced structure of bead section, which can be effectively improved in the durability under very heavy load con- ditions and can be recapped two or three times without damaging the base tire. The radial tire for heavy duty, comprises a car- cass ply of a radial or a semi-radial construction composed of at least one rubberized metal cord ply; a first metallic cord rein- forcing layer disposed at the outside of the turned up portion of the carcass ply; and a second fiber cord reinforcing layer secured to the inner surface of the carcass ply main portion. The radially inner portion of the second reinforcing layer is interposed by a given width between the turned up portion of the first reinforcing layer and the main portion of the carcass ply in bead base portion. The height of the radially outermost end of the turned up portion of the carcass ply is higher than the height of the radially outermost and of the first reinforcing layer.
509487
Marks & Clerk
Sumitomo Rubber Industries Limited
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