RU2363909C2 - Self-loading noisefree pistol - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: invention relates to small arms, particularly, to self-loading noiseless pistols. Proposed pistol comprises barrel with powder gas ejection orifices made in the barrel rifled part, integrated silencer, open bolt, frame, sear, trigger, fire-control lever-bolt stop, magazine, lever-type return mechanism with return spring and lockwork. Silencer chambers are arranged below the barrel axis. Integrated silencer housing and frame represent a single block made from polymer material. Open bolt is furnished with gas brake representing a gas-discharge orifice made at the barrel rear and a gas chamber formed by bolt lateral and front walls. Note that gas brake orifice allows discharging gases from the barrel into integrated silencer chamber. Lever-type return mechanism is furnished with increasing arm to transfer recoil energy from the bolt to return spring fitted in the pistol handle. When bolt slides back till bullet case extraction, aforesaid arm transfer ration approximates to 1:4, while after extraction it makes, at least, 1:2.

EFFECT: simpler design, higher reliability.

1 dwg

Description

The known design of a silent version of the Makarov pistol with a lever return mechanism, a free shutter and an integrated silencer [1].

Known design pistol MSS with a free shutter and special cartridges with gas cutoff in the sleeve [1].

The disadvantage of the first design is its bulkiness, the disadvantage of the second is the need to use special expensive cartridges.

The essence of the invention is to achieve maximum compactness of the integrated silencer and weapons as a whole while minimizing the loss of ballistic characteristics, as well as in the use of automation systems with a high degree of absorption of the recoil momentum and in the use of standard pistol cartridges for silent shooting.

The invention consists of a barrel / 1 /, a muffler / 2 /, a frame / 3 /, a return spring / 4 /, a transmission lever / 5 /, a shortened shutter / 6 /, a striker / 7 /, a combat spring / 8 /, a store / 9 /, trigger / 10 /, trigger springs / 11 /, whispered / 12 /, whispered springs / 13 /, cocking lever of the firing pin / 14 / and translator-fuse / 15 /. The barrel has two symmetrical side openings in its rear part for venting gases into the cavity of the silencer, the chambers of which are located below the axis of the barrel. The external silencer body and frame are made as one part made of polymeric materials. The gas brake consists of a gas outlet in the rear of the barrel /1.1/ and a gas chamber /6.1/, consisting of the side and front walls of the shutter, and the gas brake hole also acts as an opening for discharging gases into the silencer chambers.

The operation of the muffler is as follows: after a shot, a bullet under the influence of powder gases begins to advance along the bore of the barrel, crashing into its rifling, and subsequent powder gases are pitted through the silencer expansion chambers located in the openings in the rear of the barrel, located below the barrel axis. By the time the bullet leaves the barrel, the powder gases have time to completely leave the barrel, with the last part of its path in the barrel passing by inertia.

Automation is based on the principle of free shutter. After pulling the trigger / 10 / he begins to compress his spring / 11 /, in the case of self-cocking, the drummer / 7 / cockes, overturns the sear / 12 / and fires. After the shot, the bolt / 6 / begins to move backward, compressing the return spring / 4 /, with which it interacts via the swing lever / 5 /, and at the stage of the bolt / 6 / rollback before the extraction of the spent sleeve, the transmission shoulder is approximately 1: 4, and after sleeve extraction increases to about 1: 2. Cocking the hammer / 7 / occurs on the reverse stroke of the shutter / 6 /. The drummer / 7 / is movably fixed in the bolt / 6 / and after the bolt / 6 / strikes the frame at the extreme rear recoil point, it continues to move, compressing the return spring / 4 /, and the mass ratio of the bolt and striker is approximately 2: 1. In this way, the impact impulse is divided into two parts at the extreme rear point, which reduces the displacement of the weapon during firing.

The return mechanism and the trigger mechanism are made in one removable housing in front of the store. The design features of the silencer require the use of a shortened shutter.

The use of gas brakes can reduce the mass of the free shutter and thereby reduce the movement of the center of mass of the weapon during firing, and also provides the possibility of using cartridges with a spread of momentum. Combining the functions of a silencer and a gas brake allows you to simplify the design of weapons.

The use of standard pistol cartridges allows to reduce the cost of weapons and increase the safety of handling it.

The manufacture of the frame and the outer shell of the muffler as one part from polymeric materials simplifies the design of the gun and increases its strength.

For firing from the above-described design of the pistol, it seems optimal to use the 9 × 19 mm Parabellum cartridges, since their supersonic initial velocity under conditions of a sharp drop in gas pressure in the barrel immediately after the bullet leaves the barrel during movement along the barrel will drop to a subsonic level. At the same time, the use of cartridges from a Makarov pistol is impractical, because for these reasons their subsonic initial velocity by the time the bullet leaves the barrel will drop to an unacceptably low level.

Information sources

1. Fedoseev S.L. All about the gun. 2003, M .: LLC ″ Publishing house AST ″, pp. 359-371.

Claims (1)

Self-loading pistol, including a barrel with holes for discharging powder gases in its threaded part, an integrated silencer, a free shutter, a frame, a sear, a trigger, a safety translator, a magazine, a spring-return lever and a trigger mechanism, characterized in that the silencer chambers are located below the axis of the barrel, the frame and body of the integrated silencer are made in the form of a single block of polymer material, the free shutter is made with a gas brake, in the form of a gas outlet located in the rear of the barrel and the gas chamber formed by the side and front walls of the shutter, and the gas brake hole is configured to discharge gases from the barrel into the cavity of the integrated silencer, and the lever-return mechanism is made with an increasing shoulder transferring recoil energy from the shutter to the placed in the handle a return spring, and during the period of shutter rollback before the extraction of the spent sleeve, the transmission arm is not more than 1: 4, and after the moment of extraction it is not less than 1: 2.