Patent ID: 8872051

Claim:
A control device for switches with silicone domes comprising actuator means ( 10 ) which act on silicone domes ( 13 ) associated with metallic means for closing and selectively opening electric contacts of printed circuit activators; wherein between each actuator means ( 10 ) and the respective silicone dome ( 13 ) is positioned a flexible metallic plate ( 11 ), which rests one side on the silicone dome ( 13 ) and upon which said actuator means ( 10 ) act, characterized in that: actuation of each silicone dome ( 13 ) from a rest position occurs by means of an elastic lever formed by said flexible metallic plate ( 11 ), and in that; the actuator means ( 10 ), as said actuator moves downwards, pushes on said flexible metallic plate ( 11 ) causing both the progressive compression of silicone dome ( 13 ) and the arching of said flexible metallic plate ( 11 ); the arching of the flexible metallic plate ( 11 ) causing said flexible metallic plate to accumulate energy and said metallic flexible plate ( 11 ) has a maximum warp in a stroke condition of the controlling device which corresponds to the maximum effort before the collapse of silicone dome ( 13 ); the reaction of the silicon dome ( 13 ) begins to reverse itself and consequently the flexible metallic plate ( 11 ) gives back accumulated energy causing the silicone dome ( 13 ) to return to said rest position.