| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a curved tube of an endoscope with reduced machining man-hours. SOLUTION: The method for producing a curved tube of an endoscope comprises a step for forming projection preparing sections 68 and insertion hole preparing sections 69 on a first plate part 64a by press working, a step for forming penetrating hole preparing sections 67 on a second plate part 64b by press working, a step for forming first or second nodal ring preparing sections 70a or 70b on the first or second plate parts 64a or 64b by punching, a step for relatively moving the first and second nodal ring preparing sections 70a and 70b so as to align the projection preparing sections 68 and the penetrating hole preparing sections 67, a step for inserting the projection preparing sections 68 into the penetrating hole preparing section 67 rotatably and for connecting the first and second nodal ring preparing sections 70a and 70b with each other, a step for bending the nodal ring preparing sections 70a and 70b in a U shape, and a step for bending the nodal ring preparing sections 70a and 70b in an O shape. COPYRIGHT: (C)2007,JPO&INPIT
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