Cocking and percussion mechanism for single-trigger dual launchers and weapons equipped therewith

An initialization, cocking and percussion device for a caliber firearm with a first barrel and a second barrel which are juxtaposed or superimposed, wherein the first and second barrels respectively have a first firing pin and a second firing pin moving along axes of the first barrel and the second barrel, the first and second firing pins are respectively accelerated by first and second independent inertial hammers;

• the device comprises one single trigger;
• an interaction between the trigger and the first or second hammer associated with the first or second barrel is carried out for each of the trigger and the first or second hammer by means of a first or second integral assembly dedicated to each of the trigger and the first or second hammer, each of said first and second integral assemblies consisting of a gearwheel, a three-branched star part, the first integral assemblies includes a ratchet dedicated to the first barrel, said ratchet is bound with the three-branched star part and the gearwheel of the first integral assembly, said ratchet is moved in rotation directly by a break, said break is linked with the trigger in order to put said first assembly in rotation on a predetermined direction,
• wherein the gearwheel of the first integral assembly is positioned side by side with the gearwheel of the second integral assembly that it drives in the opposite direction, being of the same diameter and equipped with the same number of teeth;
• wherein actions on the second barrel are also transmitted though the gearwheel of the first integral assembly;
• wherein cocking actions of the first and second hammers which are obtained alternately in rotation by the respective contact and action of one branch of each of the three-branched star part of the first or second integral assembly until the three-branched star part and the first or second hammer are released by lack of contact.