PROBLEM TO BE SOLVED: To provide an endoscope where an increase in an outer diameter of an insertion part is suppressed and a curved part and a soft part are firmly joined to each other.SOLUTION: In an endoscope, a connection ring 30 of a curved part and a connection ring 29 of a soft part that are fitted to each other are joined together at least by one pin 250 having a large diameter part 251 and a small diameter part 252. In the connection ring 30 and the connection ring 29, the connection ring 29 arranged outside the fitting is provided with through-holes 253 for housing the large diameter parts 251 of the pins 250. The connection ring 30 arranged inside the fitting is provided with through-holes 254 which overlap the respective through holes 253 of the connection ring 29 in the state of being fitted to the connection ring 29 and are formed to have smaller diameters than the large diameter parts 251 of the pins 250, and into which the small diameter parts 252 of the pin 250 are inserted.SELECTED DRAWING: Figure 26COPYRIGHT: (C)2016,JPO&INPIT【課題】挿入部の外径の増大が抑制され、湾曲部と軟性部とが強固に接合された内視鏡を提供する。【解決手段】互いに嵌合される湾曲部の接続環30と軟性部の接続環29とは、大径部251及び小径部252を有する少なくとも一つのピン250によって互いに連結されており、接続環30及び接続環29のうち嵌合外側に配置される接続環29には、ピン250の大径部251を収容する貫通孔253が設けられ、嵌合内側に配置される接続環30には、接続環29と嵌合した状態で接続環29の貫通孔253の各々と重なり、ピン250の大径部251より小径に形成され、ピン250の小径部252が挿通される貫通孔254が設けられている。【選択図】図26
