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A multiple electrical switch comprising a casing, a control knob supported on the top edge of the casing for tiltable movement in four directions, a retainer horizontally mounted within the casing and a conversion knob tiltably supported by the retainer and having an upper portion projecting through

A multiple electrical switch comprising a casing, a control knob supported on the top edge of the casing for tiltable movement in four directions, a retainer horizontally mounted within the casing and a conversion knob tiltably supported by the retainer and having an upper portion projecting through the central aperture of the control knob. Upper and lower base plates are disposed on respective opposite sides of the retainer, with each of the upper and lower base plates defining a printed circuit board and having a plurality of fixed connecting contacts. The switch further comprise an insulating elastic sheet having a central portion for covering the upper portion of the conversion knob and opposite side peripheral portions for covering respective top surfaces of the upper base plate and each portion including a swell including a movable connecting contact corresponding to a respective one of the plurality of fixed connecting contacts of the upper base plate.

대표청구항 ▼

A multi-position electrical switch comprising: a casing having a top edge and an inner wall; a control knob supported on said top edge of said casing for tiltable movement in four directions and having a central aperture; a retainer horizontally mounted within said casing and having peripheral surfa

A multi-position electrical switch comprising: a casing having a top edge and an inner wall; a control knob supported on said top edge of said casing for tiltable movement in four directions and having a central aperture; a retainer horizontally mounted within said casing and having peripheral surfaces engaging said inner wall of said casing; a conversion knob tiltably supported by said retainer and having an upper portion projecting through said central aperture of said control knob; upper and lower base plates disposed on respective opposite sides of said retainer, each of said upper and lower base plates defining a printed circuit board and having a plurality of fixed connecting contacts; and an insulating elastic sheet having a central portion for covering said upper portion of said conversion knob and opposite side peripheral portions for covering respective top surfaces of the upper base plate, and each peripheral portion including at least one swell, each swell comprising a movable connecting contact corresponding to a respective one of said plurality of fixed connecting contacts of the upper base plate.