Device for control of an electric motor driving a moving object

A device for control of an electric motor driving a moving object, comprising a switch (12, 12′;

• 30;
• 38, 38′) controlling a power supply to the supply to the motor and means for actuating the switch by reacting against the moving object so as to cause said switch to be opened and to cut off the power supply to the motor, these actuating means comprising
• a mechanical actuating device (1 1;33,33′) capable of taking up a first state in which the switch is closed and a second state in which the switch is open, and
• means (17;
• 36) for putting the mechanical actuating device into its first state, the actuating device being brought into its second state by rotatably reacting against the moving object, wherein the mechanical actuating device is a bistable device (11;
• 30;37) and the means for putting the actuating device into its first state are exclusively manual.