PROBLEM TO BE SOLVED: To provide an endoscope including a sensor for detecting a rotation quantity and having an insertion part rotatable around a longitudinal axis relative to an operation part, the endoscope being capable of preventing an index, etc. detected by the sensor from coming into contact with a built-in component and wearing out, thereby always detecting the rotation quantity of the insertion part accurately.SOLUTION: An endoscope 2 comprises: a long flexible tube part 23 having a longitudinal axis a long built-in component 40 arranged within the flexible tube part 23 an operation part 6 connected to the proximal end part of the flexible tube part 23 such that the flexible tube part 23 is rotatable around the longitudinal axis a scale 42 provided at a position corresponding to the rotation angle of the flexible tube part 23 a rotation quantity detection unit 13 for detecting the scale 42 and a cover member 43 for covering at least a part of the scale 42 so as to prevent the built-in component 40 from coming into contact.COPYRIGHT: (C)2015,JPO&INPIT【課題】回転量を検出するセンサが内視鏡内に設けられ、操作部に対して挿入部が長手軸周りに回転可能な内視鏡において、センサが検出する指標などが内蔵物と接触して摩耗などすることを防止して、挿入部の回転量を常に正確に検出することができる内視鏡を提供する。【解決手段】内視鏡2は、長手軸を有する長尺な可撓管部23と、可撓管部23内に配設された長尺な内蔵物40と、可撓管部23が長手軸周りに回転可能に、可撓管部23の基端部に連結された操作部6と、可撓管部23の回転角度に応じた位置に設けられた目盛り42と、目盛り42を検出する回転量検出部13と、内蔵物40が当接しないように、目盛り42の少なくとも一部の範囲を覆うカバー部材43を備える。【選択図】図3
