BORING MACHINE

PROBLEM TO BE SOLVED: To provide a boring machine which can positively secure a guide cell to a boring object, prevents the guide cell from becoming unstable, and can save time and labor required for securing the guide cell. SOLUTION: The boring machine is formed of the guide cell (12), a boring rod...

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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 boring machine which can positively secure a guide cell to a boring object, prevents the guide cell from becoming unstable, and can save time and labor required for securing the guide cell. SOLUTION: The boring machine is formed of the guide cell (12), a boring rod (24) which is arranged on the guide cell in a manner movable forward/backward and has a boring bit (26) at the tip thereof, and a rotating means (30) for rotating the boring rod. The boring machine is comprised of a rotational reaction bearing means (22) which has a fixed portion supported by the guide cell (12) at one end thereof, and an inserted portion (22a) inserted into a recess (10b) formed in the boring object (10) at the other end thereof. Herein the inserted portion (22a) can press a peripheral wall of the recess. COPYRIGHT: (C)2006,JPO&NCIPI