| 摘要 |
An endoscope capable of preventing the cover member from being damaged and also preventing the airtight failure from being caused is disclosed. A projection 172 can reparably join with an opening 137 . It becomes possible for the cover fitting member 170 and the cover member 130 to rotate together as one body when they join with each other. When they enter in this state, the cover fitting member 170 is screw-joined with a sleeve 120 , thereby fitting the cover member 130 thereto. After this, the cover member 130 is moved in the axial direction to separate the projection from the opening, thereby it becoming for the cover member 130 to turn round the axis. On one hand, the movement of the cover member 130 in the axial direction is restrained by the cover fitting member 170 and the slide restraint member 180 as well.
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