Mold for gasket, method for manufacturing the gasket, and gasket

This invention provides a mold for a gasket, which can render the planar shape of a mold for integral molding of a large-diameter gasket as small as possible to reduce the size of the manufacturing equipment and, at the same time, by virtue of integral molding, does not require labor and time in the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ASAI KAZUYUKI, SHOJIMA DAIHACHI, KOHATSU KENTA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PISTONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SEALINGS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	This invention provides a mold for a gasket, which can render the planar shape of a mold for integral molding of a large-diameter gasket as small as possible to reduce the size of the manufacturing equipment and, at the same time, by virtue of integral molding, does not require labor and time in the manufacture thereof and does not cause a lack of strength in the connecting part. To this end, a mold (1) for molding an endless-type gasket comprises a plurality of molding parts (11,21), formed by disposing two molding grooves (12, 22), in a spiral wound form, in parallel so as to be adjacent to each other. The spiral wound molding grooves (12, 22) have reversing parts (14, 24) in their respective inner ends (13, 23), and, at the same time, their outer ends (15, 25) are connected to each other in a rope form.