SK3082004A3 - Repetitive shotgun without engaging movement, operated by movable barr - Google Patents

Abstract

Gun without movable barrel with movable barrel (7) controlled by the movable armrest (15) is characterized by placing a fixed closing block (5), the drum mechanism (3), charge hub (8), charging hole (10) and the ejection opening (20) by the handle (13) and the trigger (21), towards the foot of the shoulder rest (2). cocking (19) is signaled by a stop (17) and a pivot member (18) except for the presence of a hub in the chamber especially (7) its condition (fired or failed) in dependence from the position of the drum mechanism (3)

Description

Technical field

The invention relates to the field of weapons.

BACKGROUND OF THE INVENTION

The invention relates preferably to repeating shotguns for riot guns. For reasons of practical use, these weapons require, in particular, a short length, compactness and good maneuverability in confined spaces (cars, narrow interiors). The predominant way to achieve these requirements is to shorten mainly standard repeating weapons (originally developed for hunting purposes), while replacing the fixed stock with a folding or telescopic armrest, or completely removing it. This method is used by the world's leading manufacturers. Another category of these weapons are turret shotguns, but they have not found much practical use in practice. A major disadvantage is the bulky cartridge cylinder, which makes the gun heavy and bulky. The only representative of the moving barrel concept is a repeating shotgun constructed in the Republic of South Africa in 1990, which is not yet produced in series.

SUMMARY OF THE INVENTION

The principle of the invention is in the overall concept of the weapon, especially its breech mechanism, gripping and supporting parts. Replacing the movable slide with a fixed locking block allows to shorten the overall length of the weapon while maintaining the required length of the barrel. This eliminates the disadvantage of shortening mainly - reduced power and range. In the classic concept of rifles with a moving slide behind the barrel is a retractable slide, the length of which must be greater than the length of the fired cartridge case. In addition, space is required to slide the slide when charging or charging. ejection of the fired cartridge.

The proposed concept has a movable slide replaced by a fixed locking block into which the movable barrel is locked. At the same time its movement controls the whole necessary cycle ie. ejecting the cartridge from the cartridge into the barrel, tightening the drum mechanism, locking, unlocking and ejecting the cartridge. The movement is mainly controlled by the movable armpit. The advantage of the solution is to shorten the overall length of the weapon by at least 160 mm (double the length of the bolt charge) while maintaining the required length of the barrel.

By sliding the gun holder (pistol grip type) forward in front of the magazine fill opening, the center of gravity is moved to the center of the gun, which greatly facilitates handling and firing with one hand. The abovementioned adjustments of removing the stock of conventional weapons deteriorate the maneuverability, as the holder (of the pistol grip type) will reach the end of the weapon, thereby moving its center of gravity significantly forward. There is a heeling moment that loads the shooter's wrist while holding the weapon with one hand.

The heel of the retractable armrest of the proposed concept has three positions. In the vertical position, it is used to lean against the shoulder of the shooter (while simultaneously extending the shoulder rest). In a horizontal position (to the left or right of the vertical) it is used to lean on the forearm of the shooter when shooting with one hand (alternative for left and right handed). Part of the weapon is also a warning signaling the presence of charge in the chamber and its status. Compared to the solutions used so far, where the presence of the resp. absence of charge in the chamber, the design of the weapon allows the position of the drum mechanism in addition to indicate whether it is a new charge (was not initiated by the cock) or. fired or failed (the charge was initiated by a cock strike, even if the failure occurred).

The safety and readiness of the weapon also contributes to the manual tensioning mechanism located on the holder. Allows to readily tension or re-tension as required. release the percussion mechanism spring without having to repeat the entire charging cycle. When the tensioning mechanism is released, the trigger is locked, thus preventing the release of the cock which is in the rear (cocked position).

The aforementioned advantages arise mainly from the fact that it is a new concept of a special weapon for special purposes and not a conventional way of modifying a conventional weapon.

Description of pictures

In FIG. 1 is a weapon in the locked state. The percussion mechanism 3, the charging aperture 10, the ejector aperture 20 (not shown), the cartridge feeder 8 and the fixed bolt block 5 are located behind the handle 13 and the trigger 21. The barrel 7 is locked with its teeth into the corresponding teeth of the fixed bolt block 5 weapon 1 and does not exceed the weapon profile.

In FIG. 2, the weapon is in the open state. The movable handles 15 are moved forward towards the mouth of the barrel 7, the teeth of the barrel 7 are released from the teeth of the fixed bolt block 5 by the movement of the movable hand 15 and the barrel 7 is in the forward position, protruding from the gun profile.

In FIG. 3, 4, 5 and 6, the alarm function is shown.

In FIG. 3 shows the state when the cartridge is not in the barrel. The upper part of the warmer 19 does not protrude above the body surface of the weapon 7. The biaser 19 is compressed by a spring return into the body space of the weapon 1 on the pivot member 18, which is compressed by this pressure and supported by the support surface 18.1 on the top of the percussion mechanism 3, which is in the forward-un tensioned position. The pivot member 18 is pivotally connected to the stop 17 by means of a pivot. The stop 17 is pushed into the space of the empty chamber of the barrel 7 by spring pressure.

In FIG. 4 shows the state of the warning device in the activated position, with the hub in the barrel 7 and the percussion mechanism 3 in the rear-tensioned position. The hub 16 pushed the stop 17 and the pivot member 18 into the rear position. The pivot member 18 is lifted and pushed the warmer 19 above the body of the weapon 1 by moving the support surface 18.1 over the surface of the percussion mechanism 3, indicating the presence of a new charge and the position of the percussion mechanism in the rear-tensioned position.

In FIG. 5 shows the state after firing. The percussion mechanism 3 is in the forward lowered position, its upper part being out of reach of the pivot member 18 and its support surface 18.1. The pivot member 18 is compressed into the void behind the percussion mechanism by the pressure of the detector 19. The detector 19 is pushed below the level of the body of the weapon 1 by the pressure of the return spring, which means that the weapon is not ready to fire i.e. charge is either fired or failed.

In FIG. 6 is a state with the percussion mechanism 3 lowered in the barrel 7.

DETAILED DESCRIPTION OF THE INVENTION

1 shows the weapon in the locked state. The barrel 7 is locked by its teeth into the corresponding teeth of the fixed bolt block 5 fixedly attached to the body of the weapon. The slider 11 is in the rear position, the percussion mechanism 3 is lowered, the tensioner is inserted into the handle 13 located in front of the charging opening 10 and by means of the tension rod 6 keeps the percussion spring 4 in the biased position.

In FIG. 2, the weapon is in the open state. The teeth of the barrel 7 are released from the teeth of the fixed bolt block 5 by the movement of the movable underarm 15 by means of a screw groove and the barrel 7 is moved to the forward position. At the same time, the movement of the armpit releases a new cartridge from the cartridge 12, which is extended to the cartridge feeder 8. As it moves forward, the barrel 7, by its recess 9, has received a slider 18 which has moved forward. The pusher 8, with its lower part, half-actuated the mechanism 3 and picked up the cartridge feeder 8 with the cartridge which was ejected from the tubular magazine 64 under the barrel 7. The pusher 78 also ejected the firing cartridge at the end. The percussion mechanism 3 is in the rear position, the tensioner 84 is pulled out of the handle 53 in the off position, the percussion spring 4 is released. By reversing the movable armpit 15, the barrel 7 is moved towards the fixed breech block 5, inserting a new cartridge 16 from the cartridge feeder 8. In FIG. 3, 4, 5 and 6, the function of the warning 19 is shown.

In FIG. 3 shows the state when the cartridge is not in the barrel 7. The warning 19 does not protrude above the body of the weapon 6, the stop 17 is pushed forward into the empty barrel 7 by the spring pressure. The pivot member 8 with its supporting surface 18.1 is depressed downwardly to the top of the percussion mechanism 3, which is in the forward-untensioned position.

In FIG. 4 shows the condition with the hub in the barrel 7 and the percussion mechanism 3 in the rear-tensioned position. The hub 16, after locking the barrel 7, pushes the stop 17 together with the pivot member 8 into the rear position. By swiveling the support surface 18.1 over the surface of the percussion mechanism 3, the pivot member 18 is lifted and pushed out of the warmer 9 above the body of the weapon 5, thereby signaling the presence of a new hub and the position of the percussion mechanism 3 in the rearward position.

Fig. 5 shows the state after firing. By lowering the percussion mechanism 3, the upper part thereof has fallen, thereby also reducing the pivoting member 18 with the support surface 18.1. The warmer £ 9 is pushed below the level of the body of the firearm by the pressure of the return spring, which means that the firearm is not ready for firing, ie. charge is either fired or failed.

In FIG. 6 is a state with the percussion mechanism 3 lowered without a cartridge 6 in the barrel 7.

Industrial usability

The use of the invention is particularly feasible in police, military, special anti-terrorist units, security services, protection of transported valuable items and the like. The present invention addresses the current requirements and current increasing tendency of the armed forces to use short and compact bracket weapons.

The proposed solution allows good handling especially in confined spaces and convenient transport. Maneuverability with one hand releases the other hand of the shooter for further action. Using manually operated (reflective) tensioning resp.

releasing the spring of the percussion mechanism increases the firing alert respectively.

security. The alert informs the shooter about the state of the charge in the chamber.

The adjustable foot of the extendable armrest improves one-handed handling and fits both left and right hand shooting.

The design with a fixed locking block into which the movable barrel is locked allows maximum use of plastics, which reduces the weight of the weapon and the susceptibility to corrosion and partially dampens the firing impacts. Another important aspect is the productivity and economy of mass production.

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Claims (2)

PATENT CLAIMS A repeating shotgun firearm characterized in that the fixed breech block (5), the percussion mechanism (3) and the cartridge feeder (8) are located behind the trigger (21), towards the shoulder rest (2). A repeating shotgun firearm according to claim 1, characterized in that the fixed bolt block (5) is fixedly mounted in a body (1) in which a spring-loaded warning device (19) is inserted into the working space of which the pivoted spring member (18) extends. a stop (17) having a support surface (18.1).