B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/93
B60C 9/18 (2006.01)
Patent
CA 1120390
A REINFORCEMENT BELT FOR A PNEUMATIC TIRE ABSTRACT OF THE DISCLOSURE A reinforcement belt for a pneumatic tire includes at least three superpositioned plies of filiform elements. A first ply having two free lateral edges has at least one lateral edge portion folded over to create a skirt with the balance of the first ply forming a main portion having an axial width substantially equal to the axial width of the reinforcement belt. The filiform elements in this first ply are of aromatic polyamide composition and have a high modulus of elasticity. A second ply extends parallel to the first ply over an axial distance at least equal to the axial spacing of the two free lateral edges of the first ply. The filiform elements in the second ply may be either of aromatic polyamide or steel composition. A third ply of filiform elements of steel extends into the median zone of the belt and has an axial width which is less than, equal to or greater than the distance separating the free edges of the first ply. Various orientations of the plies are disclosed.
373358
Mirtain Henri J.
Vervin Jacques
Gowling Lafleur Henderson Llp
Pneu Uniroyal Englebert
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