| 摘要 |
A method of manufacturing an endoscopic insertion portion with high manufacturing efficiency is provided. The method of manufacturing the endoscopic insertion portion which includes a plurality of bending parts provided side by side with each other, a protruding portion provided in one of the adjacent two bending parts, and a receiving portion which are provided in the other of the two bending parts and into which the protruding portion is inserted rotatably so that the two bending parts swing with respect to each other, the method comprising forming, in one plate material (24) or a plurality of plate materials, a first bending part preparation portion (56a) for the formation of the one bending part and a second bending part preparation portion (56b) for the formation of the other bending part, connecting the first bending part preparation portion (56a) and the second bending part preparation portion (56b) by press processing, and forming the first and second bending part preparation portions (56a, 56b) into a cylindrical shape by press processing.
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