Electronic switch in particular for the detection of the presence of an IC card in a card reader.

摘要

The invention proposes an electric switch (10) of the type including a trip button (14) which is mounted slideably in a switch casing (12), a movable contact element (62) which is linked to the button (14) and which cooperates with at least one fixed contact element (50, 52) carried by the casing (12) of the switch, and means (44, 62) for elastically restoring the button (14) to a stable rest position, for which the value of the restoring force (F) decreases when the actuation travel (C) of the button (14) exceeds a predetermined value (C1), characterised in that the said predetermined value (C1) of the travel corresponds to the tripping of the switch. <IMAGE>