'Push-push' or 'push-down' type electric switch with nut drag means

摘要

Electric switch (100) comprising in a box (110): - a driver (150) adapted to tilt between two stable positions to bring a mobile contact element (154, 155) into contact or out of contact with a contact element fixed (131, 141); - a push button (190) accessible to the user adapted to be moved between a rest position and a sunken position; - a nut (160), mounted in a pivotal manner with respect to the push button, suitable to act in a rocking manner on said driver; - a drive means (180) to move the nut together with the push button; - elastic return means that permanently tend to return the push button to the rest position; and - elastic tilting means, to which the driver is subjected, and which, in response to an action of the nut on it, are suitable, after overcoming a hard point, to bias the driver in the direction of one or the other. of its stable positions and to subsequently hold it elastically therein, characterized in that said elastic return means and said elastic tilting means are formed by a single spring (170) compressed between said nut (160) and said driver (150) and leaning on the latter.