<；P>；PROBLEM TO BE SOLVED: To provide a zoom endoscope which ensures flexibility and excellent rotation followability required for each of the inside of a bending portion and the inside of a flexible tube portion without coupling guide tubes (that is, without increasing the diameter of insertion portion of the endoscope) to acquire zooming operation without a feeling of strangeness by smooth rotation transmission operation in bending or the like. <；P>；SOLUTION: A rotation transmission wire 9 is formed by serially and integrally connecting a rigid torque wire 9W on a proximal end side and a soft torque coil 9C on a distal end side having the same external diameter. A core 9x of the rigid torque wire 9W which is made of a twisted wire is inserted into a hollow central axis part of the soft torque coil 9C by being pulled out of the rigid torque wire 9W, and is joined and fixed to the soft torque coil 9C in the state. <；P>；COPYRIGHT: (C)2011,JPO&INPIT
