CZ2004942A3 - Firearm with dynamic breech - Google Patents

Abstract

Firearm with dynamic breechblock, more particularly personal defense weapon, comprising a frame with the pistol grip and folding stock, the frame further comprising a breechblock chamber with a breechblock, a cover enclosing a barrel, wherein a cocking slide lever with a cocking slide is mounted, a firing mechanism, a magazine catch and a magazine well. The breechblock~ (5) is slidably mounted on the firing mechanism housing (24), the firing mechanism housing comprising the trigger mechanism (27), the hammer assembly (26), the integrated safety (34)/shot selector (31) assembly, the trigger guard (47) and the magazine well (4) with magazine catch (18). The breechblock (5)slides on the guide rod (11). Rear of the firing mechanism housing (24) is lodged in the frame (1) and its front is pinned to the frame (1) by means of the assembly pin (17). Assembly pin (17) is slidably disposed in the hole (48) aligned in the firing mechanism housing (24) and the frame (1). The cover (2) is disposed on the barrel (3) screwed into the fixing collar (la), and removably fixedly attached to the frame (1) by means of the muzzle nut (6) screwed on the barrel (3).

Description

Firearm with dynamic breech

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a firearm with a dynamic breech, and in particular to a personal defensive weapon consisting of a body with a grip and a folding support which comprises a breech chamber with a breech, forend with a barrel. and stack shafts.

BACKGROUND OF THE INVENTION

Previously known firearms with dynamic breech are usually designed so that the trigger mechanism and also the shaft with catch for the magazine form an integral part of the body of the weapon and the breech is located in the guide grooves or on the central mandrel and is accessible only when dismantling the rear or top . The barrel is also inserted in the body and is usually secured with a bayonet lock, or stop at the end of the barrel.

The disadvantages of the prior art are, in particular, that they comprise a large number of components with main parts of a complex shape. Their disassembly and rebuild requires a number of operations which, if not regularly practiced, slow down the disassembly and assembly of the weapon to a large extent.

Also, if necessary, changing the caliber of the weapon, where it is necessary to replace a larger number of related parts and it is not possible to perform this task on site and without the use of special tools.

SUMMARY OF THE INVENTION

These deficiencies are substantially eliminated by a firearm with a dynamic breech, in particular a personal defensive weapon consisting of a body, with a grip and a folding support, which includes a breech chamber with a breech and forend with a barrel in which the cocking lever of the breech. the drum mechanism, the container catch and the container well, the essence of which is that the slide is slidably supported on the trigger container.

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The trigger container comprises a trigger mechanism, a percussion mechanism, a fuse combined with a shifter, a trigger guard and a magazine well with a magazine catch. The conclusion is led by a central thorn. The trigger container is inserted with its rear part into the body, the front part of which is retained in the body by means of a disengaging pin retractable into an opening formed in the trigger container and body. The forend is slid onto the barrel screwed in the fixation insert and firmly detachably connected to the body by means of a spout nut screwed on the barrel.

Advantageously, at the end of the recess is accessible through the ejector window.

Advantages include the fact that the case and trigger container are made of plastic.

During the construction of the weapon was chosen the philosophy of maximum simplicity, low production, ergonomics and maximum reliability in all climatic conditions. Other advantages include the versatility, quick replaceability of the main parts, ie the barrel, bolt and trigger container, which results in a very simple and quick disassembly and assembly of the weapon. remove the lower part of the weapon after releasing the trigger container from its housing.

Overview of the drawings

BRIEF DESCRIPTION OF THE DRAWINGS The invention is explained in more detail with reference to the drawings in which: FIG. 1 is a general view of the inner configuration of the weapon; FIG. 2 is a general view of the inner configuration of the weapon with the trigger container and lock;

DETAILED DESCRIPTION OF THE INVENTION

According to FIG. 1, the firearm consists of a body 1 with a grip 35 and a tilting support 38 in which a dynamic slide 5 is displaceably mounted on the central mandrel 11 with a recess 52 formed through the ejection window 51 in the body 1. barrel liner 3 and bore 48 formed. The barrel 3 is screwed into the fixation liner 1a and • φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ φ · · · · · In the upper part of the foregrip 2 above the main 3 there is a rod 16 of the bolt 5 with a tensioning lever 14. The trigger container 24 comprising the trigger mechanism 27, the percussion mechanism 26, the mechanical fuse 34 combined with shifter 31, trigger guard 47 and shaft 4 for magazine 42 with catch 18 magazine 42, its The part 5 is inserted into the body 1 and its front part is fixed to the body 1 by means of a disassembly pin 17 retractable into the opening 48 formed in the trigger container 24 and the body 1. At the conclusion 5 is formed recess 52 accessible through the ejection window 51.

A firearm with a dynamic breech, in the particular embodiment of Fig. 1, consists of an unlocked dynamic breech 5 of prismatic shape.

In the operating cycle, the slide 5 is not guided by the grooves formed in the body 1, but is preferably located on the central mandrel 11 This makes it possible to produce the body 1 from both sheet metal and plastic.

The weapon fires from the front position of the breech 5, in the rearward position the breech of the breech 5 is dampened by the hybrid bumper 13. The percussion mechanism 26 and the trigger mechanism 27 are located in the trigger container 24, which can advantageously be made of plastic. The trigger 28 has a maximum resistance of 16 N. The mechanical fuse 34 combined with the shifter 31 has a lever 30 on both sides, the catch 18 of the magazine 42 lies in the center in front of the trigger guard 47 so that it is accessible from both sides. The tensioning lever 14 of the bolt 16 of the breech 5 protrudes to the left front in the upper part of the forend 2 and does not move when fired. Reaching the bolt 5 to the forward position in the event of a defect is resolved so that a recess 52 is formed in the bolt body 5, which is accessible through the ejector window 51 in the housing

The closure 5 is thus controlled, if necessary, by simply pressing a finger on the recess 52.

The barrel 3 of the weapon has an unconventional six-groove bore with a thread length of 250 mm. It is not parallel to the body 1 but is slightly offset. This solution shortens the recoil arm and limits the stroke of the weapon when firing.

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The mechanical fuse 34 combined with the shifter 31 is operated on both sides by a lever 30 with locking positions, burst firing and single shot firing.

The straight cartridge magazines 42 for 10, 20 and 30 cartridges are 5 double-row with a double-row orifice.

Disassembling the submachine gun is very simple. This is done by pulling the tensioning lever 14 of the bolt 16 of the breech 5 into the rear position and turning it 90 ° upwards. This moves the slide 5 to the rear position (firing readiness). Pulling the disassembly pin 17 to the left breaks the connection between the body 1 and the trigger container 24, which is tilted downwards, then the bottom 5 with the central mandrel 11 is also pulled downwards.

The design of the firearm according to the invention allows for rapid replacement of the main parts, barrel, breech, trigger container, i.e. change in length and caliber of the barrel, with the possibility of mounting an integral silencer, swapping the trigger container with different firing modes with or without firing pin. The design also allows the installation of a large selection of accessories on the weapon without modification to the universal (Weaver's), on the upper part of eg classic sights, red dot, optics or underarm for universal mounting such as laser, lamp, front handle.

Industrial applicability

The weapon of the invention is useful as a personal defense weapon in the armed forces of the military, police, special intervention units and various other types of armed forces.

Claims (4)

PATENT CLAIMS 1. A firearm with a dynamic breech, in particular a personal defensive weapon, consisting of a body with a grip and a foldable support, containing: 5 a breech chamber with a barrel and forend with a barrel in which the cocking lever of the breech is fitted with a puller, a trigger and a percussion mechanism, a magazine catch and a magazine well, characterized in that the breech (5) is slidably mounted on the trigger container (24); comprising a trigger mechanism (27), a percussion mechanism (26), a mechanical fuse (34) 10 combined with a shifter (31), a trigger guard (47) and a magazine shaft (4) with a catch (18) of the magazine (42), and is guided by a central mandrel (11), the trigger container (24) being its rear part is inserted into the body (1) and its front part is received in the body (1) by means of a disassembly pin (17) which can be inserted into a hole (48) formed in the trigger container (24) and the body 15 (1), wherein the foregrip (2) is slid onto the barrel (3) screwed into the fixation insert (1a) and firmly detachably connected to the body (1) by means of a centering nut (6) screwed on the barrel (3). Firearm according to claim 1, characterized in that the breech (5) is provided with a recess (52) accessible through the ejector window (51). 20 May Firearm according to claims 1 and 2, characterized in that the body (1) is made of plastic. Firearm according to claim 1, 2 or 3, characterized in that the trigger container (24) is made of plastic.