DRILLING MACHINE

PROBLEM TO BE SOLVED: To provide a drilling machine capable of fixing a guide cell securely, preventing the guide cell from becoming unstable, and saving time and labor for fixing the guide cell. SOLUTION: This drilling machine is provided with the guide cell 12, a drilling rod 24 arranged so as to...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FURUNAGA TATSUHIRO, HAGIMORI KENJI, KOGA SHIGEKI
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a drilling machine capable of fixing a guide cell securely, preventing the guide cell from becoming unstable, and saving time and labor for fixing the guide cell. SOLUTION: This drilling machine is provided with the guide cell 12, a drilling rod 24 arranged so as to move forward, backward, and freely on the guide cell and provided with a drilling bit 26 at a front end, and a rotating means 30 for the drilling rod. This machine is provided with a supporting means 22 having a fixed part supported on the guide cell 12 at one end and composed of an insertion part 22a inserted into a recessed part 10b provided in an object 10 for drilling hole at the other end. The insertion part 22a has a pressing part 22a capable of pressing a peripheral wall of the recessed part to support pressing reaction force applied on the drilling rod by the supporting means. COPYRIGHT: (C)2007,JPO&INPIT