Shoulder reinforcement for radial ply tire

Details Shoulder reinforcement for radial ply tire Shoulder reinforcement for radial ply tire

B - Operations, Transporting

60

C

152/81

B60C 9/02 (2006.01) B60C 9/00 (2006.01) B60C 9/20 (2006.01) B60C 9/26 (2006.01)

Patent

CA 2036656

ABSTRACT OF THE DISCLOSURE SHOULDER REINFORCEMENT FOR RADIAL PLY TIRE A radial ply pneumatic tire (1) has carcass plies (16, 17), folded axially around a pair of axially spaced apart bead cores (2). The crown reinforcement (5) has one belt ply (7) folded around at least two unfolded plies (8, 9) and a shoulder reinforcing structure (11) comprising a least three layers reinforced by textile cords, forming with an axial plane intersecting them, angles which are opposed. The layers have substantially the same width. In a preferred embodiment, the lateral extent (G) of the layers under the folded belt ply (7) ranges between B/4 and B/3, wherein B is half the lateral width of the folded ply and the lateral extent ( L) into the sidewall, beyond the edge of the folded ply, ranges between G and 2G.

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