Apparatus for producing pneumatic tires

Details Apparatus for producing pneumatic tires Apparatus for producing pneumatic tires

B - Operations, Transporting

29

D

18/167, 18/178

B29D 30/06 (2006.01)

Patent

CA 1136811

ABSTRACT OF THE DISCLOSURE A cavity having the shape of the tire to be produced is defined by a mold comprising an upper element, a lower element and a core element which are fittable to and releasable from one another. The core mold element comprises three divided segments, i.e., a segment for forming the inner surface of the tire tread, and a pair of segments for forming the inner surfaces of the tire sidewalls including tire beads. The core mold element has two pairs of nipping portions for holding the opposite ends of tire cords placed on the tread inner surface forming segment. The nipping portions in each pair are movable toward or away from each other. The tire cords nipped at their opposite ends by the core mold element are held in place within the cavity by the cooperation of the upper and lower mold elements, and a molding material composed of rubber or an equivalently elastic material is filled into the cavity and cured.

362302

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