PROBLEM TO BE SOLVED: To provide an insertion tool for a pipe inside investigation device that can positively maintain a guiding member for feeding an investigation device such as endoscope in a housed state when the guiding member is inserted in a pipe and positively and smoothly expand the guiding member when the guiding member is expanded in the pipe.SOLUTION: An insertion tool for a pipe inside investigation device comprises: a mounting member 25 to be detachably attached to a correction valve 5 an insertion member 27 disposed in the mounting member 25 so as to be vertically movable in a water-tight state a holder 29 disposed at the lower end part of the insertion member 27 and able to accommodate an endoscope main body S and a guiding member 31 held rotatably and vertically movably by the holder 29. The rotation of the guiding member 31 is restricted, with the guiding member 31 suspending from the holder 29, and the guiding member 31 is rotated and expanded as energized by torsion coil springs 107 when the guiding member 31 is pushed relatively upward with respect to the holder 29. As the insertion member 27 is pushed forward with the rotation of the guiding member 31 restricted and the tip of the guiding member 31 makes contact with a pipe bottom to move relatively upward with respect to the holder 29, the guiding member 31 is rotated and expanded.COPYRIGHT: (C)2013,JPO&INPIT【課題】 内視鏡などの調査機器を送り出す案内部材を、管内へ挿入する際には確実に収納状態に維持する一方、管内で展開させる際にはスムーズで確実に展開させることができる管内調査機器挿入具の提供。【解決手段】 補修弁5に着脱可能に取り付けられる取付部材25と、取付部材25に水密状態で上下動可能に設けられる挿入部材27と、挿入部材27の下端部に設けられ、内視鏡本体Sを収容可能なホルダー29と、ホルダー29に回転可能にかつ上下動可能に保持される案内部材31とを備える。案内部材31はホルダー29に対して垂下した状態では回動が規制されており、ホルダー29に対して相対的に上方へ押し上げられるとねじりコイルバネ107の付勢力により回動して展開する。案内部材31の回動が規制された状態で挿入部材27が押し込まれ、案内部材31の先端部が管底に当接してホルダー29に対し相対的に上方へ移動することで案内部材31が回動して展開する。【選択図】 図2
