Abstract: In a method of manufacturing a switch base according to the invention, blanked members are prepared, each having a common strip formed at a lower part thereof, a plurality of finger-shaped pieces extending from the common strip, fixed contact portions formed on distal end portions of respective ones of the finger-shaped pieces, and terminal portions situated between respective ones of the fixed contact portions and the common strip. Next, indentically shaped blanked members are superimposed in such a manner that the fixed contact portions thereof are spaced away from one another, and the blanked members are assembled together with the fixed contact portions being arrayed in a plurality of rows and the terminal portions being arrayed in a single row. Thereafter, a resin is molded between the fixed contact portions and the terminal portions to form a base, and the common strips are cut away to manufacture a switch base.

Abstract: A switch operating member is provided in an opening at the upper portion of a switch housing, and a rotary knob has a cylindrical portion arranged about the operating member. A restoring spring has one end thereof engaged with the switch housing and has its other end engaged with the rotary knob. Locking means are provided comprising a projection on the outer periphery of the operating member and an engaging portion on the cylindrical portion of the rotary knob, or vice versa. The operating member is automatically locked against up-and-down movement when the projection is brought into locking engagement with the engaging portion owing to restoration of the rotary knob. A cam groove having steps for preventing reverse movement is provided on the operating member as the engaging means. The switch operating member is locked at an initial position while the projection is in abutting contact with the cam groove.