Reinforcing structure for metal shell and manufacturing method for metal shell

A metal shell is composed of a trunk portion and a pair of reinforcing portions provided at opening ends of the trunk portion. The trunk portion is formed of a metallic cylinder, the reinforcing portion is formed of a metallic ring having the same diameter as that of the cylinder, and the ring is jo...

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Bibliographische Detailangaben
Hauptverfasser:	HOSHINO TAKANORI, OZAWA RYUJI
Format:	Patent
Sprache:	eng
Schlagworte:	ACCORDIONS OR CONCERTINAS ACOUSTICS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MUSICAL INSTRUMENTS MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR PERCUSSION MUSICAL INSTRUMENTS PHYSICS STRINGED MUSICAL INSTRUMENTS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS WIND MUSICAL INSTRUMENTS
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Beschreibung
Zusammenfassung:	A metal shell is composed of a trunk portion and a pair of reinforcing portions provided at opening ends of the trunk portion. The trunk portion is formed of a metallic cylinder, the reinforcing portion is formed of a metallic ring having the same diameter as that of the cylinder, and the ring is joined to at least an opening end of the cylinder.