CZ17607U1 - Device enabling achievement of legally limited value of projectile kinetic energy of multi-barrel firearms - Google Patents

Description

Technical field

The technical solution relates to a device for achieving a limited kinetic energy of a bullet in multi-barreled flobert guns, especially double barreled guns.

Background Art

Restricting the kinetic energy of the bullet to the administratively permitted value is achieved by the current known guns with a fixed cartridge chamber in the flobert type by completely separating the cartridge chamber from the barrel space / space, in the case of revolvers in addition the clearance between the cylinder and the main. In this embodiment, a portion of the propellant charge energy is discharged without firing the shot by firing the bullet from the chamber through the gap / space / bore hole until the bullet penetrates into the shell. mainly the action on the shot occurs. In addition, with revolvers, there is a leakage of force between the cylinder and the main until the bullet leaves the orifice of the barrel, in other known solutions the clearance between the cylinder and the non-rotating imitation of the war. Since the administrative kinetic energy of the bullet is considerably lower than that achieved by a standardized flobert charge, it is necessary that a substantial part of the energy medium - propellant charge energy - is taken off without shelling, requiring a significant gap / space for known solutions / between the chamber and the main or substantial clearance between the cylinder and the main one compared to constructional habits. As a result, the bullet usually does not penetrate into the bore coaxially with the bore and its deformation occurs by cropping or flattening. The result is increased scattering. The above mentioned drawbacks are partly solved, for example, according to utility models CZ 11280 Ul, CZ 12456 U1 and CZ 15447 U1, while the disadvantage of the solution of the mentioned utility models is in the complexity of their application in the case of double-barrel or multi-barrel weapons.

The essence of the technical solution

These drawbacks are largely eliminated by a double-barreled or multi-barreled apparatus according to the present invention, which consists of an additional at least one channel, the channels of which are connected by bores in the vicinity of the mouth of the cartridge chambers. The device according to the present invention allows the discharge of a portion of the energy-carrying medium of the propellant charge without acting on the bullet being fired mainly by the bore just not firing mainly during the entire flight of the bullet in the current barrel.

The advantage of this technical solution is the technological simplicity of production, the possibility of making a cartridge chamber directly in the barrel or in close proximity to the rear part of the barrel and thus removing or limiting the possible misalignment of the pair of cartridge chamber - barrel bore. The disadvantage is the clogging of the boreholes with rigid propellant residues, however, which is irrelevant to the use of this technique in the case of short arms used only occasionally, for example derringer weapons.

List of drawings in the drawing

The technical solution will be explained in more detail on two examples by means of a drawing in which FIG. 1 shows a double barreled firearm with fixed charge chambers, made directly in the main, with a device according to the invention consisting of at least one channel connecting the bores of the two main chambers.

FIG. 2 shows a double-barreled firearm with separate fixed chamber chambers from the main, with a device according to the invention: a channel connecting the two mainly in the vicinity of the chambers.

- 1 1 / W / VJ 1

Referring to Figures 1 and 2, the flow arrows show the leakage of excess propellant charge energy just by the non-shooting main for a bullet in a general position in the barrel just firing. With the exception of cartridges, the known mechanisms for making shots and the gripping part of the weapon are not drawn.

Examples of technical solutions

The device of FIG. 1 consists of a channel L which is formed partly in the main and partly in the gun body near the chambers and connects the main bores.

The apparatus of FIG. 2 consists of a channel 1 which is formed in the weapon body near the chambers and connects the spaces in front of the main rear portions.

The device function is as follows.

In FIG. 1, the lower barrel being fired with the bullet in the general position in the borehole escapes the excess energy of the propellant charge charge through the channel X through the bore just not firing the upper barrel outside the weapon throughout the lower main bullet flight. During the subsequent shot from the upper barrel, part of the excess energy is already released by the lower main shot. The operation of the device of FIG. 2 is similar.

By arranging the channel cross-section, the pressure energy is reduced by the leakage of excess energy to such an extent that it achieves the administrative permissible kinetic energy of the bullets, practically determined during assembly by measuring the muzzle velocity of the bullets. A more precise adjustment at a greater than allowed muzzle velocity for a holiday or near less than the allowable speed is made by adjusting the diameter of the channel.

Claims (3)

PROTECTION REQUIREMENTS 20 1. Apparatus for achieving administratively limited kinetic energy of a missile in a double-barreled and multi-barreled flobert type weapon, provided in the body or directly in the main chamber, by discharging excess propellant charge not just firing the barrel, comprising at least one channel ( 1). 2. Device according to claim 1, characterized in that the channel is designed in part 25 in the main body and partially in the body of the weapon or entirely in the body of the weapon. Device according to claims 1 and 2, characterized in that the channel connects the bores of the barrel or the spaces in front of the rear portions of the barrel near the chamber chambers.