TWO-STEP OPERATING FUNCTION PUSH-BUTTON CONTROL SWITCH WITH SENSATION OF CLICKING

摘要

PROBLEM TO BE SOLVED: To provide large difference in operation loads between the first and second steps of a push-button control switch having a two-step operating function, for use in various electronic equipment as an input control device, by varying control pressure with respect to one push-button operation. SOLUTION: A light-touch switch 2 having a clicking feel is provided on a wiring board 1, and a membrane switch 3 with contacts formed therein is laminated in an overlapping position over the light-touchs switch 2. A push- button-integrated dome shape spring member 4 made of elastic rubber or soft resin is successively laminated thereon, and electrical switching action is imparted so that by pressing the surface of the push-button, the light-touch switch 2 and the membrane switch 3 are turned on.