METHOD AND DEVICE OF SCREWING

METHOD AND DEVICE OF SCREWING

PROBLEM TO BE SOLVED: To securely carry out driving and screwing of a screw even when a fastened material is hard. SOLUTION: A drive bit 9 is advanced with a strong pressing force by a first piston 3 sliding inside a cylinder 2 and a second piston 21 going through the first piston 3 till the tip of...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SASAKI YASUO, TAKAKUSAKI YUKITOSHI, OMORI KOKI, OGURA MITSUO
Format: Patent
Sprache:eng
Schlagworte:
HAND TOOLS
MANIPULATORS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING
TRANSPORTING
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To securely carry out driving and screwing of a screw even when a fastened material is hard. SOLUTION: A drive bit 9 is advanced with a strong pressing force by a first piston 3 sliding inside a cylinder 2 and a second piston 21 going through the first piston 3 till the tip of the drive bit 9 is engaged with a slot in the head of the screw and the tip of the screw is driven into a prescribed depth of the fastened material 100. When the screw 10 is screwed into the fastened material 100 after the screw is driven into the fastened material 100, sliding of the first piston 3 is stopped by a stopping member 16a mounted on the inner wall of the cylinder 2 and the drive bit 9 is advanced only with a weak pressing force by the second piston 21. COPYRIGHT: (C)2003,JPO