FASTENING PIN FOR HARD MEMBER TO BE DRIVEN, AND METHOD FOR FORMING THE PIN

PROBLEM TO BE SOLVED: To provide a fastening pin, which is hardly flexed during driving and which is effectively driven into a hard member to be driven.SOLUTION: The fastening pin comprises: an enlarged head section 1; a large diameter shaft section 2a below the enlarged head section 1; a middle sha...

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Bibliographische Detailangaben
Hauptverfasser:	ARAI TOSHIMICHI, AIHARA YASUNOBU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS FORGE FURNACES FORGING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAMMERING HEATING LIGHTING MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PRESSING METAL PUNCHING METAL RIVETING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fastening pin, which is hardly flexed during driving and which is effectively driven into a hard member to be driven.SOLUTION: The fastening pin comprises: an enlarged head section 1; a large diameter shaft section 2a below the enlarged head section 1; a middle shaft section 2b below the large diameter shaft section 2a; and a small diameter shaft section 2c extending from the middle shaft section 2b to a top end 8. The pin has a round part 4 in an underhead section 3, which is a boundary between a lower face of the enlarged head section 1 and an upper end of the large diameter shaft section 2a. The large diameter shaft section 2a has a tapered part 5 formed between the underhead section 3 and the middle shaft section 2b, with the underhead section 3 side having a larger diameter. The middle shaft section 2b is a straight section having the same diameter. A leading end of the small diameter shaft section 2c is formed into a bullet shape.