HOT EDGE IN CASE-MANUFACTURING DEVICE

PURPOSE:To enable a tapered fusion welded case which is strong in intensity of the case and excellent in quality and free from deformation, perforation, etc., to be formed by assembling by a method wherein a tip angle of an edge for forming a bending groove is formed to be smaller than a tip angle o...

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Bibliographische Detailangaben
1. Verfasser:	GOSHOO KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN AMANNER ANALOGOUS TO PAPER PERFORMING OPERATIONS TRANSPORTING WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	PURPOSE:To enable a tapered fusion welded case which is strong in intensity of the case and excellent in quality and free from deformation, perforation, etc., to be formed by assembling by a method wherein a tip angle of an edge for forming a bending groove is formed to be smaller than a tip angle of an edge for fusion of a side wall edge part. CONSTITUTION:A tip angle of an edge C deg. of an edge for forming a bending groove 2 is formed to be smaller than a tip angle D deg. of an edge for fusion of a side edge part 3. In a concrete example wherein a side wall upper part of a tapered fusion case is inclined by 10 deg. to 14 deg. outward to a vertical direction of a bottom plate, a tip angle C deg. of the edge for forming the bending groove 2 should be preferably formed into 50 deg.-58 deg., and the tip angle D deg. of the edge for fusion of the side wall edge part 3 should be preferably formed into 63 deg.-69 deg. as the tip angles thereof.