| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an attaching pipe investigation device capable of investigating the interior of an attaching pipe from the inner surface side of an underground pipe. SOLUTION: An investigation camera means 13 is constituted of a pair of upwardly curved base guides 27 having guide slots 25, a pair of inclined insertion guides 37 positioned inside the base guides 27 and enabling a pair of outwardly protruded guide rollers to be fitted in the guide slots 25 to move along the base guides in an inclined state, and the investigation camera 45 mounted on a pair of the inclined insertion guides 37. The investigation camera 45 is pushed by a hard cable 53 to move the inclined insertion guides 37 and subsequently moved to the inclined insertion guides 31 to be inserted into the attaching pipe C.</p> |
