Ply path controlled by precured apex

Details Ply path controlled by precured apex Ply path controlled by precured apex

B - Operations, Transporting

60

C

B60C 15/06 (2006.01) B60C 3/04 (2006.01)

Patent

CA 2284598

A tire (10) having a contoured precured bead filler or apex (40) with a contoured surface (42) for directing the ply path (24A) of the cord reinforced carcass plies (24) is taught. The contour of the precured bead filler or apex (40) has a convex surface (42A) and concave surface (42B) that transition at an inflection location (T) at or below the rim flange (52) to which the tire (10) is to be mounted.

L'invention concerne un pneumatique (10) présentant un bourrage sur tringle profilé précuit (40) et une surface profilée (42) destinée à orienter la trajectoire des plis (24A) de la carcasse du pneumatique (24) renforcée par un câble. Le profil du bourrage sur tringle précuit (40) présente une surface convexe (42A) et une surface concave (42B), la transition entre les deux surfaces se faisant au niveau d'un point d'inflexion T se situant au niveau, ou au dessous, du rebord de jante (52) sur lequel le pneumatique doit être monté.

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