Central mechanism for tire vulcanizer

The present invention provides a center mechanism of a tire vulcanizer, which is of a standing post type such that after tire vulcanization is completed, a bladder inserted in a tire in vulcanizing the tire is extended while decreasing the diameter thereof, the vulcanized tire is unloaded from a mol...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OTA, SEIICHIRO, KOGA, YUKIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention provides a center mechanism of a tire vulcanizer, which is of a standing post type such that after tire vulcanization is completed, a bladder inserted in a tire in vulcanizing the tire is extended while decreasing the diameter thereof, the vulcanized tire is unloaded from a mold, and a green tire to be vulcanized next is loaded into the mold. The center mechanism has a lower bead ring that is fixed onto the inner periphery of a lower mold. An inner tube is arranged concentrically with the lower bead ring and to the center of which a center post for fixing the upper end of the bladder is assembled. A bladder holding hydraulic cylinder for moving the inner tube axially with respect to the lower bead ring is being configured so that the lower end of the bladder is held and released by the relative movement between the lower bead ring and the inner tube.