Bending control device of endoscope

A bending control device of an endoscope for bending a bendable portion, formed at the distal end of an insert part of the endoscope, by manual operation of a control part connected to the proximal end of said insert part, comprising:

• at least one up and down bending control knob rotatably provided on said control part to control bending of said bendable portion in upward and downward directions;
• at least one right and left bending control knob rotatably provided on said control part, in coaxially superposed relation to said up and down bending control knob, to control bending of said bendable portion in rightward and leftward directions;
• and
• partition means having a larger outer diameter than said up-and-down and said right-and-left bending control knobs, said partition means being disposed closer to said control part than the one of said bending control knob that is furthest from said control part, thereby isolating the space on the side of said partition means closest to said control part from the space on the side of said partition means furthest from said control part.