Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1990-10-24
1992-11-17
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152532, B60C 918
Patent
active
051640287
ABSTRACT:
A radial tire comprises: a pair of bead cores disposed one in each bead portion of the tire; a carcass having radially arranged cords turned up around the bead cores form the axially inside to the outside thereof; a rubber tread disposed radially outside the carcass; a belt comprising a wider ply and a narrower ply disposed adjacently between the carcass and the tread, each belt ply comprising parallel metallic cords each composed of at most five metallic strands, each strand having a diameter of in a range of 0.10 mm to 0.22 mm, the cord count in each belt plies being in a range of 25 to 45 cords/5 cm in a direction at a right angle to the cord direction; and a rubber damper layer disposed between said adjacent belt plies, the damper layer having a substantially uniform thickness so that the distance between the cords of one belt ply and the cords of the other belt ply is in a range of 2.0 mm to 3.0 mm, and the damper layer having a width being not more than the wider belt ply width and not less than the narrower belt ply width.
REFERENCES:
patent: 4262726 (1981-04-01), Welter
patent: 4962802 (1990-10-01), Rohde
Ball Michael W.
Krawczyk Nancy T.
Sumitomo Rubber Industries Ltd.
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