Abstract: The invention relates to a control device for the door leaf a transport vehicle, comprising a housing (10, 100) and, in said housing, a switch (1, 201) provided with a plunger (6, 206), a cam (115, 15) mounted so as to rotate relative to the housing, and a mobile element (102, 202) capable of a transmission movement (T) as a result of an action applied by the cam when the latter rotates (R), said mobile element also being capable, through said transmission movement (T), of acting on the plunger so as to tilt the switch from a first electric state to a second electric state, characterised in that the mobile element has a shape moulded so as to protrude from the body (100, 204) of the device.