CZ950U1 - Subcaliber adapter for large-caliber pistols - Google Patents

Description

The technical solution relates to a small-caliber adapter suitable for large-caliber pistols intended for shooting with less powerful ammunition.

Basay-arin state duck Xy.

Large caliber pistols have a number of advantages for users, such as high firepower with high shock effect or high deterrent effect, but also disadvantages which include high cost ammunition of large caliber ammunition, high impact and ecological noise disturbance, high range. and more lead in. · »· · -lach.

Manufacturers therefore try to produce large caliber pistol adapters for less powerful ammunition, sufficiently accurate, cheap and low noise. The adapter usually has the outer shape of the large-caliber pistol, is detachably connected to the pistol frame and its own function and kinematics of the conclusion of the breech insert, containing the firing pin, extractor, saddle for the hub and return spring. Obviously, the drawback of this solution is that it is quite complex and expensive, as well as assembly and maintenance is more complex than with a large-caliber pistol. The big disadvantage of Btajících adapters is that when shooting bs conclusion does not move, as is the case of normal shooting mode does not simulate the usual system for firing large-caliber ammunition, when used with a gun, so this shooting and moving the shooter to the stationary adapter can cause injury .

The aim of the technical solution is to find a solution which satisfies the conditions of the pistol function when shooting low-power cartridges, is simple and cheap to manufacture and operate, and that the outer shape of the pistol with the low power cartridge adapter corresponds to the outer shape of the large caliber pistol. with part of the conclusion must be in accordance with the performance of the cartridges used.

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These drawbacks are eliminated by the small caliber adapter for large caliber pistols according to the present invention, which is based on the conclusion that the barrel for the less powerful ammunition is formed on the basis of light metals such as aluminum and / or plastics and a steel insert with a cavity in which a steel firing pin is also arranged and held therein.

Another feature is that a longitudinal cavity is formed in the front lower part of the breech with a through hole in which the return spring and its guide engage.

In order to prevent undesirable impacts and wear, a flexible plastic insert is provided in the longitudinal cavity.

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The technical solution is then explained in more detail by means of the drawing, in which Fig. 1 shows a small-caliber adapter in longitudinal axial section; FIG. 2 is a vertical sectional view of the small-caliber adapter in plane A-A shown in FIG. 1 and FIG. 3 in plane B-B also indicated in FIG. 1. FIG.

Small caliber adapter for large caliber pistols is a unit, which is on the frame of the large caliber pistol after removal of the slide with the appropriate mechanisms usual for firing large caliber cartridges equivalently placed and includes all functional parts, allowing shooting with smaller caliber cartridges while ensuring reverse movement.

Therefore, the slide 1 is formed of a lightweight material such as aluminum and / or a suitable plastic so that the energy generated by the return gases of the small-caliber cartridge 22 is sufficient to return it when fired, eject an empty cartridge and prepare for the next shot. to the conclusion ”of the adapter simulates the same movement as when firing large caliber rounds.

The bolt X has in the front part a guide hole X2 of the barrel 3 with a modification for a less powerful hub 22; in the central part it has a known ejector window 16 - see Fig. 2 - and at the rear a selection X2. for insert

2 and for how many 2 * as shown in FIGS. 1 and 3.

In the lower downwardly extending bolt extension X there is a longitudinal cavity XS with a through hole 23. The end of the guide 4 extends into the through hole 22 of the return spring 5, interposed between the bottom of the longitudinal cavity 10 and 2 as seen in FIG.

.

Preferably, a resilient insert is provided in the longitudinal cavity 18. of suitable plastic.

For fixing the insert 2 in the breech X, a Z screw is passed through the bore formed in the breech X and in the breech 2 and with the head embedded in the breech X.

The firing pin cavity 25 is formed in the cartridge 23, in its front part the cartridge 2 comprises a seat 19 for a small-caliber cartridge 22. The cartridge 23 is arranged in a recess 17 of the bolt X and has a protrusion 13 at the bottom forming the guide surface of the bolt X. in the pistol® frame (not shown) and at the same time the functional surfaces for the known interrupter (also not shown). In the upper part of the insert 2, the recess 10 for the locking spring 2 of the pin 2 and also comprises the known extractor XS and the feeder Xix (see FIG. 2) for feeding the cartridges 22 from a magazine (not shown).

When the pistol is depressed with the described adapter fitted, the faucet hits the firing pin XX, which initiates the charge 22. ejection by ejection window 16.

The breech i. In the rearward position hits the piston frame stop (not shown) with excess energy, hence the longitudinal cavity XS. The return spring 5 then returns the slide X to the forward position, while the feeder 14 moves the cartridge 22 from the magazine (not shown) into the barrel 2. again in a known manner.

Since both aluminum alloys and plastics do not achieve the high resistance of the steel required for the operation of the gun, the liner 2 is made of steel and contains all the necessary impact and friction surfaces, i.e. 2X impact surface - see Fig. 1. the firing pin 11 stops and a winding surface 22 which, upon retraction of the engagement X, and hence the firing pin liner XX, extends the tap to prepare for the next shot. Furthermore, the functional surface b comprises a well-known shifter 13 not shown in the projection 13, a seat X2. hub 22 and recess XQ for pin 6. The advantage of the described solution is also that it enables easy, cheap and mass production.

The movement of the firing pin XX is limited by the recess 20 and the pin 2, so as not to damage the firing pin tip by the barrel 2 when the trigger is depressed in the unarmed condition 22 in the barrel 2.

The bolt X with the insert 2 and the firing pin 11 forms a separate compact unit which can be easily exchanged for the bolt of a large caliber pietole for shooting with less powerful ammunition, eg .22 LH cartridges. It is also designed in terms of weight. that the back pressure of the gas from the less powerful cartridge 22 derives its backward movement and the insertion of another cartridge from the magazine into the barrel. The gun with the adapter behaves similarly as in the firing of large caliber cartridges for which the pistol is designed.

To the described small-caliber adapter, it is necessary to use a magazine for less powerful ammunition for which the adapter is designed, in an embodiment allowing the use of the insertion of this magazine into the handle of a large-caliber pistol.

Claims (2)

PROTECTION REQUIREMENTS A small-caliber pistol adapter for large-caliber pistols intended for firing low-power ammunition, characterized in that the slide (1) in which the barrel (3) for the low-power ammunition is arranged is based on light metals such as aluminum and / or a plastics material, and there is a steel insert (2) with a cavity (25) in which a steel firing pin (11) is arranged. Small-bore adapter according to claim 1, characterized in that. That in the front lower part of the breech (1) there is formed a longitudinal cavity (18) with a through hole (23) into which the reversible strut (5) and its guide (4) engage. The lorging adapter of claim 2. characterized in that a flexible plastic insert (6) is arranged in the longitudinal cavity (18).