Bending device and endoscope

A bending device comprising:

• a bendable bending section in which a plurality of bending pieces are coupled;
• a wire, a distal end of which is fixed to the bending section, the wire being towed to bend the bending section;
• a plurality of wire receivers provided on an inner circumferential surface of the bending section, the wire being inserted through the wire receivers in an advanceable and retractable manner;
• an inner coil sheath, a distal end of which is fixed to a cap interposed between the bending pieces in an intermediate section of the bending section, the inner coil sheath being inserted through the plurality of wire receivers further on a proximal end side than the cap and extended to the proximal end side of the bending section;
• a cover that covers all regions held by the plurality of wire receivers on the proximal end side from the cap in an outer circumference of the inner coil sheath, is inserted through the wire receivers with the wire, has stretchability in a longitudinal axis direction of the wire, and is advanceable and retractable in the longitudinal axis direction in the bending section further on the proximal end side than the cap;
• a fixed section at a distal end of the inner coil sheath against which a distal end of the cover is buttable when the cover advances and retracts;
• and
• an outer coil sheath against which a proximal end of the cover is buttable when the cover advances and retracts, and through an inner side which, the inner coil sheath is inserted.