Tire tread mould
AssigneeMichelin Recherche et Technique S.A.
InventorGilbert Menard
Life of this patent
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Abstract
The invention relates to a tire tread mould comprising a lower molding part (2) and an upper molding part (3) defining respectively the outer surface or the inner surface of a tread, at least one of the parts being movable between two positions corresponding to the opening and closure of the mould (1), in which the upper molding part (3) bears elements (6) for hooking one of the longitudinal ends of the tread.
Claims15
A tire tread mould comprising a lower molding part and an upper molding part defining respectively the outer surface and the inner surface of a tread, at least one of the parts being movable between two positions corresponding to the opening and closure of the mould, wherein the upper molding part has elements for hooking a longitudinal end of the tread, the hooking elements are formed by at least one hook, the hook having a free end oriented longitudinally towards the outside of the mould and an inclined surface opposite its free end to facilitate the retraction of said hook.
A tire tread mould comprising a lower molding part and an upper molding part defining respectively the outer surface and the inner surface of a tread, at least one of the parts being movable between two positions corresponding to the opening and closure of the mould, wherein the upper molding part has elements for hooking a longitudinal end of the tread, the lower molding part has protruding elements to cooperate with the elements of the upper molding part, and the protruding elements of the lower molding part are formed at least by a hook having a free end oriented longitudinally towards the inside of the mould.
A tire tread mould comprising a lower molding part and an upper molding part defining respectively the outer surface and the inner surface of a tread, at least one of the parts being movable between two positions corresponding to the opening and closure of the mould, wherein the upper molding part has elements for hooking a longitudinal end of the tread, the lower molding part has protruding elements to cooperate with the elements of the upper molding part, and the protruding elements of the lower part of the mould comprise a molding surface for a leading edge on the tread to facilitate unhooking from the hooking elements of the upper molding part.
A molding and vulcanization apparatus for tire treads comprising a tire tread mould and progressive demolding means for the tread, the tire tread mould comprising a lower molding part and an upper molding part defining respectively the outer surface and the inner surface of a tread, at least one of the parts being movable between two positions corresponding to the opening and closure of the mould, wherein the upper molding part has elements for hooking a longitudinal end of the tread, and the progressive demolding means are formed by the end of a plate which can be translated on the lower molding part in the longitudinal direction.
Dependencies are inferred from the claim text.