PROBLEM TO BE SOLVED: To provide an endoscope for enabling even a person other than an expert to easily perform disassembly work of a tip part.SOLUTION: At a tip part 13, a tip sleeve 50 is engaged with a tip part body 30, and a screw 70 inserted through an insertion hole 66 of a screw reception part 64 projectedly formed on an inner peripheral surface of the tip sleeve 50 is screwed into a screw hole 32 of the tip part body 30 to be fixed. When the screw 70 is turned in a loosening direction at the time of disassembling the tip part 13, a head part 70a of the screw 70 is brought into contact with a rib part 68 projectedly formed on the inner peripheral surface of the tip sleeve 50 to move the tip sleeve 50 to a base end side. Thus, the disassembly of the screw 70 and the cancellation of the engagement of the tip part body 30 with the tip sleeve 50 are collectively performed by turning of the screw 70.SELECTED DRAWING: Figure 12COPYRIGHT: (C)2016,JPO&INPIT【課題】先端部の分解作業を熟練者以外であっても容易に行うことができる内視鏡を提供する。 【解決手段】先端部13において、先端部本体30に先端スリーブ50が嵌合され、先端スリーブ50の内周面に突出形成されたネジ受け部64の挿通孔66を挿通したネジ70が先端部本体30のネジ孔32に螺合されて固定される。先端部13を分解する際に、ネジ70を緩める方向に回転させると、ネジ70の頭部70aが先端スリーブ50の内周面に突出形成されたリブ部68に当接して先端スリーブ50を基端側に移動させる。これにより、ネジ70の取外しと、先端部本体30と先端スリーブ50との嵌合の解除とがネジ70の回転によって一括して行われる。【選択図】図12
