GUIDE TUBE FOR GUIDING CABLE OF INTERNAL OBSERVATION DEVICE AND CABLE GUIDING METHOD

A guide tube guides a cable of an internal observation device into a pipe bore. The cable is pushed into the pipe bore to force an observation image capturing part provided proximate a tip end of the cable to approach a portion to be observed when performing internal observation of the pipe bore of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Kubota Haruhito, Oyama Keiji, Wada Yasutaka, Uchiyama Ichiro, Yamamura Yukimasa, Yamasaki Toshiki
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A guide tube guides a cable of an internal observation device into a pipe bore. The cable is pushed into the pipe bore to force an observation image capturing part provided proximate a tip end of the cable to approach a portion to be observed when performing internal observation of the pipe bore of a pipe-like structure with the internal observation device. The guide tube includes: an outside wall having an outside diameter of the guide tube that is substantially equal to an internal diameter of the pipe bore; and an internal wall having an internal diameter of the guide tube that is substantially equal to an outside diameter of the cable