Control mechanism for a current switching device

A closing and opening control mechanism of a current switching device, the mechanism including:

• an arming lever,
• an arming shaft pivoted on a frame,
• a first elastic member including a closing spiral spring having a central end fastened to the arming shaft and a peripheral end fastened to a control member connected to the current switching device,
• an arming disc fastened to the arming shaft mobile between a first position called the rest position and a second position called the arming position,
• a loading pawl pivoted on the arming disc, the loading pawl being able to go from a first position called the driving position in which the arming lever drives the arming disc via the loading pawl to a second position called the free position in which the arming lever is free to rotate relative to the arming disc,
• in which mechanism rotation of the arming lever in a first rotation direction called the arming direction causes the arming disc to go from the first position to the second position, constraining the first elastic member,
• a retaining end stop configured to retain the arming disc once the arming disc has reached the second position and the torque applied to the arming disc by the arming lever becomes less than the torque supplied by the first elastic member,
• a fastening device mobile between a first position in which the control member is held immobile and a second position in which the control member is able to move because of the action of the closing spiral spring,
• a closing lever pivoted on the frame configured to cause the fastening device to go from the first position to the second position and thereby to cause closing of the current switching device,
• a second elastic member configured to cause the loading pawl to go from the driving position to the free position when the arming disc is retained by the retaining end stop,
• in which mechanism the loading pawl is configured to drive the closing lever from the first position to the second position when the loading pawl goes from the driving position to the free position so as to cause closing of the current switching device.