Actuator device for a fingertip switch

Abstract

A fingertip push button switch device has an electrical insulated hollow casing (1) having an externally threaded wall to be inserted through and mounted in an aperture in a support panel and secured by a fastening nut (16) engaging the threaded wall, a first upper recess in one end of the hollow casing, a second lower and smaller recess on the opposite end of the hollow casing for receiving in use part of a switch body (11) having a depressable actuating switch (10) protruding therefrom, an intermediate wall (2) on the casing between the recesses, a hollow drive push button (10) in the first recess, a spring (3) between the intermediate wall (2) and the push button (4) resiliently urging the push button outwardly of the first recess, three circumferentially spaced holes (7, 9) through the intermediate wall (2), three elastic legs (6, 8) extending axially from the push button (4) through the holes in the intermediate wall (2), two (6) of the three axial legs being arranged diametrically opposite to each other for guiding and retaining the push button (4) in the casing (1) and a third axial leg (8) being offset 90 degrees from the other two axial legs (6), a protrusion (12) on the third leg (8) for depressing the actuating switch (10) when the push button (10) is depressed in the first recess against the force of the spring (3), guide means (18) in the second recess for guiding the switch body (11) during insertion thereof into the second recess, and two resilient oppositely spaced appendages extending from the casing outwardly from the second recess and having facing sides for engaging therebetween the switch body (11) when inserted in the second recess, and retaining stubs (15) on the distal ends of the appendages (14) for retaining the switch body in the second recess.

Dependencies are inferred from the claim text.