OPERATION MECHANISM AND MANUFACTURING METHOD FOR OPERATION MECHANISM

摘要

PROBLEM TO BE SOLVED: To prevent an operation part from wobbling when moved to a position where a front face of the operation part projects from an operation panel.;SOLUTION: An operation mechanism 20 comprises: a cylindrical pipe plunger 21 coupled to an axial rear side of a knob 10 and at least one end of which is open; a cylindrical flange core 22 accommodated in the pipe plunger 21 and provided axially slidable against the pipe plunger 21; and a spring 23 that axially urges the pipe plunger 21 against the flange core 22. A groove G axially extends in one of an outer peripheral surface of the flange core 22 and an inner peripheral surface of the pipe plunger 21 and a rib R that moves in the groove G extends on the other of them. When the knob 10 is in a forward position, an inclination surface Rb of the rib R of the flange core 22 abuts on an inclination surface Gb of the groove G of the pipe plunger 21.;SELECTED DRAWING: Figure 14;COPYRIGHT: (C)2020,JPO&INPIT