RU101164U1 - SYSTEM OF LOCKING OF THE TILTING BLOCK OF THE BARRELS OF FIRING WEAPONS - Google Patents

Abstract

 1. Scheme for locking a reclining block of firearms trunks containing a fixed bolt made in the form of a receiver, and a block of several trunks swinging relative to the receiver on a transverse hinge / hinges, characterized in that it contains two cheeks of the receiver located in curly through cut-outs moving rectilinearly in the direction of the combat stop transverse relative to the axis of the barrel blocks, each of which has at least two working flat surfaces for interaction with the corresponding the existing flat surfaces of the lateral figured grooves of the rear barrel clutch of the barrel block, while in the indicated cheeks of the receiver are thrusts installed that can be moved along the axis of the gun using the Greener key and designed to interact by means of fingers with oblique grooves made in combat stops. ! 2. The locking scheme of the reclining block of the barrel of the firearm according to claim 1, characterized in that in the lower part of the receiver is made a profile hole designed to interact with its front surface with the corresponding tooth surface of the rear barrel clutch of the barrel block.

Description

The technical field to which the utility model relates.

The invention relates to locking systems for a reclining barrel unit in firearms with a fixed bolt and a block of several barrels that swing relative to the bolt on a transverse hinge.

State of the art

The vast majority of samples of hunting smooth-bore firearms refers to systems that have a receiver that is essentially a fixed bolt and a movable barrel unit that reclines on a transverse hinge. In these systems, multidirectional forces act on the barrel block and bolt during the shot, which leads, over time, to the inevitable loosening of the hinge and the appearance of an unacceptable gap between the receiver shield (shutter mirror) and the breech section of the barrel block. From the prior art, locking systems are known that partially or completely eliminate the load on the transverse hinge and at the same time lock the barrel block from opening. Nevertheless, of the main disadvantages inherent in such systems, it is necessary to point out the following:

- the presence on the breech section of the barrel block protruding parts that create inconvenience when charging,

examples: Kersten’s shutter (DRP No. 141334, 1900), Jäger’s shutter (Source: “DWJ (German weapons magazine), No. 1 from 2008);

- a large height of the receiver of the gun with vertically located trunks;

- locking on two opposite points or contact pads, which under the conditions

application of forces on the shutter area outside the line lying between the indicated points leads to uneven locking, example: Eger shutter;

- when locking on the lateral annular protrusions, the locking is carried out only on points lying on a tangent to the locking plane, which leads to potential sliding of the contact points of the receiver of the gun and the annular protrusions of the barrel block relative to each other, for example: Adolf and Caprinus-Flodman shutters. (Source: “MasterRuzhie” No. 4 (109) 2006, “Gun” (Russian weapons magazine), No. 3 from 2007);

- the functions of locking the barrel unit in the receiver of the gun and the functions of unloading the hinge of the suspension of the barrel unit are assigned to different parts, which often either complicates the design or makes it unusable, since components such as the receiver of the gun must be replaced during repair, which makes repair economically impractical.

Of the locking systems known from the prior art, it is necessary to mention locking by a pair of symmetrical diverging levers, supporting the main body of the bolt in the longitudinal direction, or entering during reciprocal protrusions into the reciprocal recesses of the receiver:

Holsten Friberg system from 1870, Henrik Kjelman system from 1907, Paul Mauser system from 1898 with a system for locking two symmetrical converging levers, Degtyarev system (Source: “Gun” (Russian weapons magazine), no. 2 from 2010)

With the external similarity of the locking principle, in these systems the locking levers, in fact, represent a segment of the body of rotation. Each lever has a hinge at one end, and accordingly, the movement of the opposite end of the lever is part of a circular path, which leads to the fact that the locking by the opposite opposite end of the lever, according to the geometry, is not made by the contact pad, but by the contact point of contact between the lever and the reciprocal part a shutter, which does not guarantee a complete locking density and, therefore, the above systems have the disadvantages of Adolf and Kaprinus shutters. Due to the direction of support of the main body of the bolt tangential to the axis of the barrel and the occurrence of an almost longitudinal load on the levers, such locking has found application exclusively in weapon systems with a fixed or longitudinally movable barrel and longitudinally movable bolt, that is, in systems with the need to lock the bolt in only one plane , which does not correspond to the task set for the utility model, and, therefore, taking into account the above disadvantages, these patented systems are not applicable in weapons from blown block of trunks.

Utility Model Disclosure

The objective of the utility model, taking into account the shortcomings known from previous design solutions for locking from the disclosure of the barrel block and at the same time unloading the hinge of the suspension of the barrel block, is to ensure the following:

- the exception from the design of the protruding parts on the breech section of the barrel unit;

- reducing the height of the receiver of the gun with vertically located trunks;

- the introduction to the design of such a quantity and arrangement of the nodes of the unloading of the hinge of the suspension, which will lead to the most uniform distribution of the load on these nodes;

- locking not on contact points, but on parallel (or according to the conditions of locking locking as close as possible in parallel) contact pads (contact “spots”) to the official cut of the trunks;

- minimizing the locking and unloading nodes by combining in these nodes both the locking functions of the barrel unit and the unloading functions of the hinge (s) of the barrel unit.

According to a utility model, a locking scheme for a reclining block of firearm barrels containing a fixed bolt made in the form of a receiver, and a block of several barrels swinging relative to the receiver on a transverse hinge / hinges, contains two located in curly through cutouts in the lateral planes (cheeks) the receiver, moving rectilinearly in the transverse direction relative to the axis of the blocks of the barrel blocks, combat emphasis, each of which has at least two working flat surfaces for interacting with the corresponding flat surfaces of the side curly grooves of the rear barrel clutch of the barrel unit, while in the indicated cheeks of the receiver are thrusts installed that can be moved along the axis of the gun using the Greener key and designed to interact, by means of fingers, with oblique grooves made in fighting emphasis.

Preferably, in the lower part of the receiver was made a profile hole designed to interact with its front surface with the corresponding tooth surface of the rear barrel clutch of the barrel unit.

Brief Description of the Drawings

The utility model is illustrated by drawings, in which:

figure 1 presents a view of the rear coupling 2 of the block of trunks, with lateral grooves made on it, in which the Planes "2", "4" and "5" are indicated;

figure 2 presents a view of the product assembly with an indication of the main positions:

1 - Griner’s key in the extreme right (open) position, 2 - rear clutch of the barrel block, breech cut “S”, 3 - combat stops in the extended (open) position, 4 - receiver, 5 - hinge, 6 - carriage, 7 - a collar, 8 - a draft, 9 - a cracker, 11 - a forward guard (mirror);

figure 3 presents a view of the product assembly in the closed position with the fighting stops 3 extended and in the unlocking position and the Greener key 1 in the extreme right (open) position;

figure 4 presents a view of the main parts forming the locking mechanism:

1 - Griner’s key in the extreme right (open) position, 3 - combat support “A” with the indication of the Planes “1” and “3”, 5 - hinge, 6 - carriage, 7 - clamp, 8 - rod, 9 - cracker, 10 - finger. The rear clutch of the barrel unit, the left cracker, the front shield (mirror) and the receiver are conventionally not shown;

figure 5 presents a view of the product assembly with an indication of the main positions:

1 - Griner's key in the extreme left (closed) position, 3 - combat stops in the retracted (closed) position, 4 - receiver, 5 - hinge, 6 - carriage, 7 - clamp, 8 - rod, 9 - cracker, 11 - front shield (mirror). The rear clutch of the barrel unit is not conventionally shown;

figure 6 presents a view of the product assembly with an indication of the main positions:

2 - the rear clutch of the barrel unit, indicating the tooth "C", 11 - the front shield (mirror), 4 - the receiver indicating the lateral (left) transverse curly notch and the plane "6". The fighting stops, hinges, carriage, clamp, traction, crackers and fingers are conventionally not shown;

Utility Model Implementation

A sample of hunting smoothbore firearms (shotguns) with vertically arranged trunks, according to a utility model, contains a rear clutch of 2 block of trunks with a breech cut “S”, a lower protrusion - a tooth “C” and side curly grooves (see Fig. 1), located on the hinges (or hinge) of the suspension inside the receiver 4, the front shield (mirror) 11 of the receiver 4, as well as two movable transverse fighting stops 3, moving rectilinearly perpendicular to the axis of the trunks and placed in the upper part of the transverse curved cutouts , which are made in the lateral planes (cheeks) of the receiver 4 (see Fig. 2 and 6). The depth of these through transverse curly cuts is sufficient for a steady rectilinear movement of the combat stops. In the lower part of the stops oblique grooves are made. In the lower part of the curly transverse cuts of the cheeks of the receiver are crackers 9 are placed, capable of carrying out a longitudinal rectilinear movement parallel to the axis of the trunks. In breadcrumbs 9, vertically arranged fingers 10 are installed, entering with their upper part into the oblique slots of the fighting stops 3 (see Fig. 4). The longitudinal rods 8 are screwed into the back of the crackers 9, located in through longitudinal channels made in the cheeks of the receiver 4 and parallel to the axis of the trunks. In its rear part, the rods 8 are combined into a single unit by means of a clamp 7, which, in turn, is connected to the carriage 6, which is controlled by means of the generally accepted upper Greener key 1.

The scheme of the locking system on the example of one (left) combat support 3 "A":

Greener Key 1 is allocated to the right. The block of trunks is folded up on the hinges of the suspension by an official slice “S” of the rear coupling 2 upwards.

In the open state, the combat support 3 "A" is pulled out of the receiver 4. The Greener key 1 has a hinge 5 that fits into the corresponding groove of the carriage 6, which, in turn, is connected to the clamp 7. Longitudinal rods 8 are inserted into the left and right grooves of the clamp The rods pass through the through channels of the left and right cheeks of the receiver and are screwed into the left and right crackers 9, moving longitudinally at the bottom of the curly cutouts of the cheeks of the box, (see Fig. 2 and 6)

When closing the gun, the barrel block is rotated until the state cut-off “S” of the rear coupling 2 comes into contact with the front shield (mirror) and box 4. (see Fig. 2, 6 and 3)

Next, the Griner key 1 rotates to the locked position to the left, and, performing a rotational movement, by means of the hinge 5 ensures the movement of the carriage 6 in the longitudinal direction, forward along the axis of the gun. Therefore, the cracker 9, connected through the rod 8 and the clamp 7 with the carriage 6, also moves forward as far as it will go. With the longitudinal movement of the cracker 9, the finger 10 interacts with the oblique groove of the combat support 3 "A" (see Fig. 2 and 4). The result of this interaction is a rectilinear movement of the combat support 3 "A" transverse to the axis of the trunks towards the rear sleeve 2 of the barrel unit, which leads to the entry of the combat support 3 "A" into the corresponding groove of the coupling 2. The opposite combat emphasis moves similarly (mirror-like). (see fig. 4 and 5)

When firing a shot, locking the barrel block to prevent the gun from opening is carried out by the interaction of the “1” plane of the combat stop 3 “A” with the “2” plane of the curved side groove of the rear sleeve 2 of the barrel block (see Figs. 1 and 4). The mating planes "1" and "2" are located at a certain minimum angle to the horizontal plane and are completely parallel, which allows, when the combat stop enters the groove of the barrel coupling, to ensure a tightness of locking.

The second, opposite fighting emphasis works similarly.

The unloading of the hinge of the barrel unit is carried out by the interaction of the plane “3” of the combat support 3 “A” with the plane “4” of the curved side groove of the rear sleeve 2 of the barrel unit (see Figs. 1 and 4). The mating planes "3" and "4" are located at a certain minimum angle to the vertical plane and are completely parallel, which allows, when the combat stop enters the groove of the barrel coupling, to ensure a tightness of locking.

The second, opposite fighting emphasis works similarly.

Additionally, to ensure a more uniform distribution of forces along the unloading planes of the hinge of the barrel block, the tooth “C” acts as the third unloading combat stop and in the closed state of the gun is located in the profile hole in the lower part of the receiver 4. In this case, the tooth plane “5” interacts “C” with plane “6” of the lower profile hole of the receiver 4 (see Figs. 1 and 6).

When using the above scheme, the tasks assigned to the utility model are carried out.

A combination of such features of a utility model as the use of two transverse fighting stops, interacting with their contact planes with the contact planes of the curved side grooves of the rear barrel clutch of the barrel block and thereby locking the barrel block and simultaneously unload the hinge of the barrel block, in conjunction with an additional unloading tooth of the block coupling trunks, provides a significant improvement in the operational characteristics of the gun with vertically located trunks.

Claims (2)

1. Scheme for locking a reclining block of firearms trunks containing a fixed bolt made in the form of a receiver, and a block of several trunks swinging relative to the receiver on a transverse hinge / hinges, characterized in that it contains two cheeks of the receiver located in curly through cut-outs moving rectilinearly in the direction of the combat stop transverse relative to the axis of the barrel blocks, each of which has at least two working flat surfaces for interaction with the corresponding the existing flat surfaces of the lateral figured grooves of the rear barrel clutch of the barrel block, while in the indicated cheeks of the receiver are thrusts installed that can be moved along the axis of the gun using the Greener key and designed to interact by means of fingers with oblique grooves made in combat stops. 2. The locking scheme of the reclining block of the barrel of the firearm according to claim 1, characterized in that in the lower part of the receiver is made a profile hole designed to interact with its front surface with the corresponding tooth surface of the rear barrel clutch of the barrel block.