Endoscope bending angle adjustment mechanism and endoscope having this bending angle adjustment mechanism

摘要

The present invention achieves a reduction in the number of parts and unitization of the mechanism, which contributes to simplification of the assembly process and reduction of manufacturing cost, and contributes to improvement of workability such as readjustment at the time of overhaul and repair, etc. For this purpose, the bending angle adjusting mechanism 30 of the endoscope 1 is provided so as to extend in the longitudinal direction of the insertion portion 8 and has a rod member 54 formed with a thread portion on the longitudinal surface. A plate member 52 that is provided in parallel with the longitudinal direction of the bar member and is bent in a substantially right angle direction, and that allows the bar member to be inserted therethrough; an adjustment piece 55 that is screwed into a threaded portion of the bar member; A guide member 53 provided in parallel with the member through which the long member 32 passes, a guide surface 53xa for guiding the adjustment piece in the longitudinal direction of the insertion portion, and a bar member with respect to the guide member Rotate around the longitudinal direction And a rotation stopping member 51 to suppress Rukoto, the guide member at least one surface is not parallel to the guide surface is fixedly arranged between the adjusting piece and the plate member.