B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
B29D 30/06 (2006.01) B29C 35/02 (2006.01)
Patent
CA 2492991
A segmented tire mold for molding a pneumatic tire with reduced flash in the sidewalls. The mold has an annular array of tread mold segments which have an inner circumferential surface and inwardly extending projections which form the tread pattern in the tire including the skid surface and tread lugs. The mold further includes a pair of sidewall mold plates which are in abutting contact with the tread mold segments and form a pair of circumferentially extending molds parting lines which are in axial alignment with a nylon reinforcing strip located in the crown portion of the tire and within 1,27 cm(1/2 inch) of the inner circumferential surface of the tread mold segments to reduce flash formed on the molded tire.
L'invention concerne un moule à segments permettant de mouler un pneumatique en réduisant les bavures au niveau des flancs. Ce moule comprend un série annulaire de segments de moulage de bande de roulement présentant une surface périphérique interne et des protubérances s'avançant vers l'intérieur, formant la sculpture de la bande de roulement du pneumatique, composée d'une surface de glissement et de pavés. Ce moule comprend en outre deux plaques de moulage de flancs qui viennent s'appuyer contre les segments de moulage de bande de roulement, et forment deux lignes périphériques de division de moules alignées dans la direction axiale avec une bande d'armature en nylon placée dans le sommet des pneumatiques, et au maximum à 1,27 cm (1/a pouce) de surface périphérique interne des segments de moulage de bande de roulement, destinées à réduire les bavures formées sur le pneumatique moulé.
Clark Michael
Reep David
Seroka Edward
Spencer Danny
Bridgestone Firestone North American Tire Llc
Bridgestone/firestone North American Tire Llc
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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