Abstract: An electric switch having a body (1) of insulating material which contains at least one recess (2) into which enter the ends (3a, 4a) of at least two terminals (3,4) the opposite ends of which (3b,4b) project outside the body, and a switch mechanism comprising an electrically-conducting element (5) fitted so as to slide in the recess (2) between first and second stable positions. The switch is characterized in that the electrically-conducting element (5) comprises a stirrup having an elastic middle part (6), contact points (8) and upwardly extending arms (9) that extend towards the opening (10) of the recess (2), appearing in windows (15) defined in the opening (10) on either side of an insulating element (14) that retains the stirrup (5) in the recess (2), the arms (9) constituting structure for moving the stirrup (5) between first and second positions.

Abstract: A grooved contact roller is movable in a housing between two switching poions determined by an elastic positioning element which defines an intermediate position in which the contact roller is in a state of unstable equilibrium. The positioning element is engaged in the groove of the roller and the latter is disposed flat against the bottom of the housing. A slidable cover for the housing constitutes an actuating member for the switch and has a journal which extends toward the bottom of the housing and is engaged with clearance in a central aperture of the roller.

Abstract: The switch has two metal contact strips projecting upwardly from the bottom all of the housing and connected to two pins which extend out of the housing. A rectilinear slideway parallel to the end wall contains a slide of electrically insulating material which is movable in the slideway between a first position and a second position. The slideway has an aperture in the region of the contact strips and the slide has a cavity which contains a freely rotatable contact roller and has confronting lateral surfaces which urge the roller to a position for interconnecting the contact strips in said first position of the slide and an inoperative position of rest in said second position of the slide. A spring wire supported in the slide biases the roller out of the cavity toward the contact strips.