B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 30/10 (2006.01) B29D 30/38 (2006.01)
Patent
CA 2554864
A method and apparatus for forming a core of plies, belts and beads and for positioning the core in a mold for forming an elastomeric tire. The core is built up on a mandrel of the inner mold that is formed from hard foam core segments positioned between top and bottom hub plates, around a center hub that includes flow passages formed therethrough and through the hub plates. Plies for building the core are formed as a woven sleeve for passage along an expander cone and over the mandrel whereon a separator has been positioned, and a bead is passed over each sleeve end that receives a bead centering plate fitted through the sleeve, capturing the bead and positioning it on the mandrel side and provides for folding the plies end over the bead and up each mandrel side. Similarly, a belt or belts, formed as a weave of belt cords, is passed along an expander cone and onto the mandrel crown, with separators positioned between the mandrel, plies and belt or belts, and above a final belt, and a tire core is wound around the crown, from one side to the other.
L'invention concerne un procédé et un appareil pour former une âme de plis, ceintures et talons et positionner cette âme dans un moule pour le formage d'un pneumatique élastomère. Cette âme est disposée sur un mandrin du moule intérieur (30) formé à partir de segments d'âme en mousse dure positionnés entre des plaques de moyeu supérieure et inférieure, autour d'un moyeu central pourvus de passages d'écoulement formés à travers ce dernier et à travers les plaques de moyeu. Des plis servant à la réalisation de l'âme se présentent sous la forme d'un manchon tissé (54) destiné à passer sur un cône élargisseur (53) et sur le mandrin, sur lequel un séparateur (52) a été positionné, et un talon est placé sur chaque extrémité de manchon qui reçoit une plaque de centrage de talon (57) placée dans le manchon (54), fixant le talon et le positionnant sur le côté du mandrin, et permet le pliage de l'extrémité des plis sur le talon et jusque chaque côté du mandrin.
Love Theodore M.
Steinke Richard A.
Amerityre
Gowling Lafleur Henderson Llp
LandOfFree
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