THERMOFORMING APPARATUS

A thermoforming apparatus includes a frame material having a housing region and a frame edge portion of a base material being a thermoforming target; and a heating plate having a square shaped heating surface in a plan view, and a frame section which protrudes toward the frame material from the oute...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MIZOGUCHI, Kenichi, TERAMOTO, Kazunori
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS 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:	A thermoforming apparatus includes a frame material having a housing region and a frame edge portion of a base material being a thermoforming target; and a heating plate having a square shaped heating surface in a plan view, and a frame section which protrudes toward the frame material from the outer peripheral edge of the heating surface, the frame section being contactable with the frame edge portion of the frame material, wherein the heating plate is provided with vacuum holes opening to the outer peripheral portion of the heating plate in a plan view at a perimeter of the frame section in the heating surface, and before adsorbing the sheet disposed between the frame edge portion of the frame material and the outer peripheral edge of the heating plate to the heating surface, a gap is included in at least a portion between the sheet and the heating surface.