Bendable part of endoscope, endoscope, and movable member

A bendable part of an endoscope that is provided in an insertion part of the endoscope, the bendable part comprising:

• a plurality of movable members that are arranged in an axial direction of the insertion part,
• wherein each of the movable members includes a body part having a tubular shape, a pair of first protruding portions that protrude to one side in the axial direction from the body part and that face each other across an axis of the body part, and a pair of second protruding portions that protrude to other side in the axial direction from the body part and that face each other across the axis of the body part,
• one of the pair of first protruding portions is provided with a first recessed portion that extends in a radial direction of the body part,
• other of the pair of first protruding portions is provided with a first projecting portion that extends in the radial direction,
• one of the pair of second protruding portions is provided with a second recessed portion that extends in the radial direction of the body part,
• other of the pair of second protruding portions is provided with a second projecting portion that extends in the radial direction,
• wherein the first protruding portion provided with the first projecting portion includes a first through-hole formed to penetrate the first protruding portion in the axial direction,
• the second protruding portion provided with the second projecting portion includes a second through-hole formed to penetrate the second protruding portion in the axial direction,
• a wire for operating the bendable part is inserted into the first through-hole and the second through-hole, and
• in a case where one of two adjacent ones of the movable members is a first movable member and other of the two adjacent ones of the movable members is a second movable member,
• the first recessed portion of the first movable member engages with the second projecting portion of the second movable member, and
• the first projecting portion of the first movable member engages with the second recessed portion of the second movable member.