Miniaturized electric switch

An electric switch (10) comprising:

• a bottom support (12) forming a contact-holder of insulating material that forms a cavity (24) in which at least two fixed electric contacts (30, 30B) are placed;
• an actuation member (54) which operates on a vertical axis (A) generally perpendicular to a base (28A, 28B) of the cavity (24);
• and a generally horizontal intermediate contact strip (14) of a conductive material that is interposed vertically between the actuation member (54) and the base of the cavity (24), that can be deformed elastically under a downward vertical action of the actuation member (54) from a stable, rest state in order to modify an electric connection between the at least two fixed contacts (30–30B);
• said intermediate contact strip includes a front transverse movable contact arm (38B) in the form of a generally horizontal band which, at rest, presses on an associated one of the fixed contacts (30B) and which tilts about a horizontal transverse axis to break the electric connection between the at least two fixed contacts (30, 30B);
• said intermediate contact strip also includes two parallel and opposite branches (40) in the form of bands whose front ends are connected to the front transverse contact arm (38B), each of the branches (40) is curved with a convexity oriented upwards, and the actuation member (54) of the switch comprises a horizontal flat bottom actuation face (62) in order to allow a generally elastic, symmetrical and simultaneous deformation of the contact strip (14).