B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/82
B60C 9/18 (2006.01) B60C 9/20 (2006.01) B60C 9/22 (2006.01)
Patent
CA 2007201
ABSTRACT OF THE DISCLOSURE To reduce the shearing distortion generated between two belt layers on both the axially ends of a tire belt, that is, to prevent so-called belt end separation trouble of the pneumatic radial tire after the tire has been inflated with air and rotated under load, two reinforcement layers, in each of which thermoshrinkable fiber cords extending in a tire circumferential direction are buried, are wrapped around at least both axially ends of the belt layers under tension, so that an inclination angle (A) of the belt layer cords with respect to the tire meridian direction on both the axially ends of the blet layer is determined smaller than that (B) near the tire equatorial plane after vulcanization molding process.
Bridgestone Corporation
Gowling Lafleur Henderson Llp
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