MECHANISM OF AUTOMATIC INFANTRY WEAPON Russian patent published in 2005 - IPC

FIELD: infantry automatic weapon.

SUBSTANCE: the invention refers to automatic infantry weapon, to mechanisms which mobile links in extreme positions impact the weapon decreasing grouping of shots mainly to the mechanisms that lock the barrel's bore. In the weapon mechanism last driving member and connected with it intermediate links moving in the same direction are fulfilled light -weight, kinematically connected with a screw gear with two rotatable in the opposite direction fly-wheels which are accumulators of kinetic energy. Rotational axes of the fly-wheels are parallel to the axis of the barrel's bore and with one of these fly-wheels with a screw-gear a counter balance is connected moving in the opposite direction of the driving member and connected with it links. Reduced mass of the forward moving details of the group of driven link, availability of the counter balance of the driven link, construction and location of rotatable fly-wheels which have no forward moving, are offsetting the axes of impacts against the weapon from forward moving links and mutually offset reactive rotational moments acting against the weapon from the fly-wheels' side with additional stabilization of an angular location of the weapon from gyroscopic action of the fly-wheels reducing hitting and overturning of the mobile parts of the mechanism on the weapon.

EFFECT: increases grouping of automating shooting.

9 cl,11 dwg