CZ2001596A3 - Weapon adapter with arrangement of hammer control - Google Patents

Abstract

The invention involves a weapon adapter that contains bolt casing (1) with fixed barrel, and the bolt inside this casing is mounted on guiding rods that are provided with plugs at their ends and where its principle is based on a flat carrier (9) of pulses of hammer release mechanism (12), which is lengthwise slide-mounted in a hole at the bottom part of the casing (1), and modified in its rear part for engagement with the lever (10) of the hammer release mechanism and its front part modified for the engagement with the bottom part of the bolt mechanism (4).

Description

Weapon adapter with hammer control adjustment.

Technical field

The invention relates to firearms, namely automatic or semi-automatic firearms, where the replacement of the barrel and receiver with accessories achieves the conversion of such a weapon to a weapon of equivalent function but modified for ammunition of another, generally smaller caliber. These are just adapters, including a conclusion with accessories.

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BACKGROUND OF THE INVENTION

At present, adapters are known which achieve a change of caliber in automatic or semi-automatic weapons and which consist of a barrel or an intermediate barrel or an intermediate chamber, a breech system and a breech housing. Other parts of the weapon then remain for common use in the weapon so adapted unchanged. Also, the functionality of existing parts remains unchanged, or after conversion some function may remain unused. The design of parts that do not change during conversion is usually made regardless of the later conversion treatment, and therefore the shape and assembly of the conversion kit components, i.e. the adapter, must solve some additional problems compared to the original caliber shooting kit. An adapter for converting an automatic firearm to a smaller caliber is known, for example, from US Pat. No. 3,714,115. It is a case with a slide, sliding on the bars and sprung both between the slide and the end stop at the end of the guide rods, and the spring of the shock absorber, which is supported by the end stop. The tuning of the spring stiffness and the mass of the moving masses must then be such that after conversion, where some weights and dimensions change due to the smaller weight and size of the ammunition, the weapon is capable of firing in the original modes. Here, then, there are problems both with stiffness, but also with the dimensions of return springs, and with the dimensional adjustment of the new or modified conclusion to his cooperating member in the unaltered part of the original weapon, in the blocking and lowering mechanism hammer. As far as the hammer blocking mechanism is concerned, often after the weapon has been modified by the application of a smaller-caliber firing adapter, the dimensioning of the breech for smaller ammunition and / or due to the changed weights of the breech and ammunition together with the altered return pulse, the breech cooperation with the hammer blocking mechanism is impaired. The point is that the hammer should be discharged in batch firing mode when the breech finishes its backward movement and the new cartridge is just before final insertion into the cartridge chamber. The impulse for hammer release is based on the movement of the slide. In the case where the weapon adapter has a smaller stroke and / or the breech is shorter, typically as a result of the adjustment for the pre-sliding springs, the action on the hammer discharge device fails. The solution can be either an intervention in the trigger mechanism of the hammer or a major overhaul of the slide. However, both are relatively expensive, sometimes technically difficult to do.

SUMMARY OF THE INVENTION

The drawbacks of the prior art are largely eliminated and the creation of an economically advantageous and technically satisfactory adapter for firearms for shooting with another caliber is achieved by a gun adapter with a hammer control arrangement, wherein the adapter includes a receiver with a barrel mounted, a receiver in the case mounted on guide rods. provided with a stopper at the end according to the invention, characterized in that in the opening in the lower part of the housing, a flat hammer discharge pulse transducer provided in the rear part for engaging the hammer discharge lever and sliding in the front part Shot with bottom of breech. It is advantageous if the flat port is provided in the front part with a projection on its upper surface adapted to engage the lower part of the breech and at the same time if a hole is provided in the rear part of the flat port to support the hammer discharge lever. It is particularly advantageous if the flat carrier is designed as an elongated horseshoe or fork-shaped body with an opening formed at its closed end and a projection on its upper surface formed at one of the free ends of the fork or horseshoe. It may still be advantageous if the aperture in the rear of the flat carrier has an oblique run toward its lower surface, adapted to insert the upper portion of the hammer discharge lever. Finally .

it may be advantageous if the sliding guide of the flat carrier is formed by longitudinal grooves provided on the sides of the longitudinal opening in the lower part of the receiver.

This achieves the creation of an adapter that will not only function reliably in all shooting modes, but will also be economical from a production point of view, because for optimum function, neither the conclusion nor the trigger mechanism will be necessary and possible adaptations to several different calibers pulse to hammer only by adjusting the flat pulse transmitter.

Overview of the drawings

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The invention is explained in more detail with the aid of the accompanying drawings, in which in FIG. 1 is a vertical longitudinal section of a gun with an adapter, in FIG. 2 is a vertical longitudinal section of a flat hammer pulse transmitter; 4 is the same port in the left side view.

DETAILED DESCRIPTION OF THE INVENTION

The weapon adapter consists of a receiver housing on which a barrel 2 with a chamber and a bore for an alternative type of ammunition is mounted in the front part. The barrel is attached to the breech housing 4 by means of a cap nut 3, which may be part of the foregrip of the weapon adapter. A slide 4 is received in the slide housing 4. The slide 4 is guided on two guide rods 5 which are fixed in the front of the barrel and in the rear part into the plug 6 of the slide housing 4. Below the slide 4, a flat transmitter 9 of the hammer discharge pulse 12 is mounted. The relative position of the protrusions 94, 44 is selected such that at the moment when the slide 4 in the backward movement is before contacting the barrel 2, the projection 41 of the slide 4 rests against the protrusion 91 of the carrier 9 and thus provides a force coupling from the slide 4. via the port 9 on the lever 10 for discharging the hammer 12, the lever 10 extending into an opening 92 formed at the rear of the port 9. The aperture 92 may be widened at the bottom to create a haunch, thereby in some

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In the spatial configuration of the device, the adapter can be mounted in the weapon as the lever 10 is then reliably introduced into the opening 92. Further movement of the slide 4 with the transmitter 9 will release the hammer 12 over the lever 10, thereby enabling firing. It will be appreciated that the backward movement of the shutter 4 is initiated by the shot, the forward movement is initiated by the pre-sliding springs 7, and from the rear end position partly by the spring 8 of the recoil shock absorber over the damper body 81.

The function of the device is as follows. After firing, the slide 4 moves back until it reaches the stop represented by the recoil damper body 81, where it rests over the plug 6 or its accessories. Now the empty cartridge is ejected and new ammunition is inserted from the magazine, whereupon the slide 4 is moved by the predominantly preloading springs 7, where before contact with the barrel 2 the bosses 9 and 9 move forward through the interaction The lever 12 releases the hammer 12. The hammer 12 eventually strikes the firing pin 13 by rotation under its own spring, whereby a new shot is initiated and the cycle can be repeated in batch firing mode.

Thus, a reliable action of transmitting the slide back movement to the hammer release lever is achieved, without having to adjust the slide in a similar manner or similarly to redesign the trigger lever system in similar mounting conditions of the adapter.

Economic usability

The device according to the invention is usable in the production and operation of firearms, especially automatic and semi-automatic firearms, where by means of replacement of parts within the so-called adapter, the caliber of the weapon is changed, while maintaining single and batch firing functions.

Claims (5)

PATENT CLAIMS Weapon adapter with a hammer control arrangement, comprising a breech case with a barrel attached thereto, a breech in the holster, mounted on guide rods provided with a stopper at the end, characterized in that it is slidable in the opening in the lower part of the breech holster (1) a longitudinal direction accommodating a flat hammer discharge pulse transmitter (12) provided at the rear for engaging the hammer discharge lever (10) and at the front adapted to engage the bottom of the breech (4). Weapon adapter according to claim 1, characterized in that the flat transmitter (9) is provided in the front part on its upper surface with a projection (91) adapted to engage the lower part of the breech (4), and at the same time is in the rear part of the receiver. a hole (92) is provided to support the hammer discharge lever (10). Weapon adapter according to claim 1 and 2, characterized in that the flat carrier (9) is formed as a body of elongated horseshoe or fork shape, with an opening (92) formed at its closed end and a projection (91) on its upper surface formed on one of the free ends of your fork or horseshoe shape. Weapon adapter according to one of Claims 1 to 3, characterized in that the opening (92) * in the rear part of the flat carrier (9) has an inclined lead towards its lower surface, adapted to insert the upper part of the hammer discharge lever (10). (12). Weapon adapter according to claims 1 to 4, characterized in that the sliding guide of the flat carrier (9) is formed by longitudinal grooves (11) provided at the sides of the longitudinal opening in the lower part of the receiver (1) of the breech (4).