Electric contactor having sensitive control

摘要

Electrical contactor with touch control using a piezoelectric pellet incorporated in one face (2b) of a card (2) which is made of an insulating material and the other face (2a) of which comprises an electronic circuit, characterised in that said contactor comprises a metal casing (1), of which the bottom (5), which is thinned-down, constitutes a protective partition against which the first face (2b) is applied by the interposition of a tubular member (3), of which one end, which is elastically deformable, is applied against the periphery of the said card, the said casing and the said card comprising means which, together, bring about the holding of the said member (3) in position.

主权项

1. An electrical contractor using a piezoelectric pellet incorporated in one face of a card which is made of an insulating material and the other face of which includes an electronic circuit, characterized in that it comprises a metal casing, of which the bottom, which is sufficiently thin to be deformed under the effect of a light manual pressure, constitutes a protective partition against which the first face is applied by the interposition of a tubular member, of which one end, which is elastically deformable, is applied against the periphery of the said card, said casing and said card including means which, together, bring about the holding of said member, in position, wherein said tubular member has at least one lug which extends beyond the diameter of the said tubular member, substantially obliquely in relation to the axis of the tubular member in such a way that the distance that separates a point on the periphery of the said lug and the said axis increases from that end of said tubular member which is in contact with the card to the other end, and in that the casing has at least one slot, against an edge of which said end of said lug rests when the card is suitably applied under the bottom of the said casing.