Patent ID: 8809714

Claim:
A switching device for an instrument, comprising: a manipulation knob that is molded from a resin material and is manually depressible; and a switch that is depressible through the manipulation knob to execute a corresponding switching operation when the manipulation knob is depressed, wherein: the manipulation knob includes a resin spring portion, which is molded integrally with the manipulation knob and projects in an axial direction of the manipulation knob; the switch is placed along a central axis of the manipulation knob; the resin spring portion is resilient and is adapted to exert a resilient reaction force against the switch when the manipulation knob is depressed to depress the switch; wherein: the resin spring portion has a protrusion, which projects toward the switch in the axial direction of the manipulation knob and contacts the switch; and the protrusion of the resin spring portion is located on one side of the central axis of the manipulation knob in a direction perpendicular to the central axis of the manipulation knob.