RU2817910C2 - Impact assembly of automatic mechanism of firearms - Google Patents

Abstract

FIELD: weapons.

SUBSTANCE: impact assembly of automatic mechanism of firearms contains bolt (4), closing spring (6). On bolt (4) and/or in breech (3) striker (10) is located with possibility of sliding, which is pushed towards bolt (4) by striker spring (13). Striker holder (10) is fitted with striker (11). Striker (11) is positioned on striker holder (10) with a possibility of movement between the front end position and the rear end position. Gap (F) is provided between front and rear extreme positions of striker (11). Striker (11) is pushed by striker spring (12) to the front-most position.

EFFECT: simplified design, reduced recoil after firing.

4 cl, 7 dwg

Description

FIELD OF TECHNOLOGY TO WHICH THE INVENTION RELATES

The invention relates to a striking unit of an automatic firearm mechanism, containing a bolt pushed in the direction of the barrel by a return spring, and a firing pin holder is slidably located on the bolt and/or in the breech, pushed in the direction of the breech by a striking spring, and a firing pin is installed on the firing pin holder.

BACKGROUND OF THE ART

Known are drives for automatic action of firearms, using the impulse of a shot, the impulse of dust gases removed from the barrel, drive by the pushing force of a bullet, mixed drives and drives with an external energy source.

Bolts operated by vented gases are primarily interlocking and used for larger caliber weapons.

In addition, dynamic or breech actions are used, which are actuated by the force of the shot acting on the bottom of the cartridge, which are usually used for lower power weapons.

There are a number of braking systems. They can be divided into the following categories:

- bolt with friction brake - the bolt slows down due to further resistance during the movement of the friction insert in the weapon body;

- a bolt braked by powder gases - gases diverted from the barrel during a shot, which subsequently brake the bolt;

- bolt braked by reducing mass - the bolt is braked by a transmission inserted between the bolt and the body of the weapon or between the bolt mechanism and the bolt mechanism holder;

- a bolt braked by pre-ignition - used in firing systems from the rear position of the bolt, the shot is fired when a cartridge is inserted into the chamber;

- bolt braked by divided mass - the bolt is divided into two parts, the first part fires immediately after inserting the cartridge, the other part continues to move forward, and then on impact slows down the bolt, accelerated by the force of the shot. Used for firing systems from the rear bolt position.

There are known designs aimed at reducing recoil after a shot. For example, the design known from document US2006260461 provides weapon stabilization and recoil reduction so that the gases of the shot act on the moving parts in both directions, that is, on the moving container/chamber in the direction opposite to the direction of the shot and on the moving body in the same direction , which is the shot.

The objective of the invention is to create a unit for an automatic firearm mechanism that will be simpler, more economical to manufacture than existing designs, and which at the same time will contribute to a significant reduction in recoil after firing.

DISCLOSURE OF THE INVENTION

This problem is solved with the help of a striker assembly of an automatic firearm mechanism, containing a bolt pushed in the direction of the barrel by a return spring, wherein a striker holder is slidably located on the bolt and/or in the breech, pushed in the direction of the bolt by a shock spring, and a striker holder is mounted on the striker holder striker according to the invention, the principle of which is that the striker is located on the striker holder with the ability to move between the front extreme position and the rear extreme position, while a gap is provided between the front and rear extreme positions of the striker, and the striker is pushed to the extreme forward position by the impact spring .

The impact assembly of the automatic mechanism of a firearm according to the invention reduces the weight of the bolt compared to known systems, which contributes to a significant reduction in recoil after a shot. This achieves a reduction in the weight of the entire firearm.

Reduction of recoil is achieved due to the fact that only the striker assembly falls into the rear position, since after impact it has a higher speed than the bolt. At the same time, the bolt itself stops or is at least slowed down by the impact unit, which returns from the rear position forward against the movement of the bolt.

In a preferred embodiment, the front end position and the rear end position of the firing pin are limited by stops.

In another preferred embodiment, the shock spring is arranged concentrically around the return spring.

In yet another preferred embodiment, the firing pin may be attached to a firing pin holder.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be described in more detail below using a specific embodiment of the firing mechanism of an automatic firearm according to the invention, illustrated in the drawings, in which the following are illustrated:

fig. 1 is a cross-sectional view of a firearm with a firing mechanism according to the invention, the weapon being in its original state with the firing mechanism tensioned;

fig. 2 - view of the same firearm at the moment the firing mechanism is activated;

fig. 3 - view of the same firearm at the moment the cartridge primer is activated;

fig. 4 - view of the same firearm at the moment the bolt is slowed down;

fig. 5 is a view of the same firearm at the moment the striking unit hits the shock absorber in the rear position;

fig. 6 is a view of the same firearm as the bolt is slowed down by striking the firing pin holder to reduce recoil;

fig. 7 is a perspective view of the bolt and the holder with the firing pin.

IMPLEMENTATION OF THE INVENTION

In fig. 1 is a cross-sectional view of a firearm with a striker assembly according to the invention in its original state with the striker mechanism tensioned.

The weapon has a breech 1, to which a barrel 3 is attached, and a casing 2 of the trigger mechanism. In the breech 1 there is a bolt 4, pushed towards the barrel 3 by a return spring 6. On the bolt 4 and at the same time in the breech 1, a firing pin holder 10 is located with the possibility of sliding, pushed in the direction of the shot to the bolt 4 by a shock spring 13. On the firing pin holder 10 is located striker 11 in such a way that it can be moved between the front end position and the rear end position. A gap F is provided between the front extreme position and the rear extreme position of the striker 11, and the striker 11 is pushed by the impact spring 12 to the forward extreme position.

The striker 11 together with the holder 10 is held in its original position (see Fig. 1) due to the stopper 9 of the striker 11.

The front extreme position and rear extreme position of the striker 11 are limited by stops that are located on the striker holder 10.

Impact spring 13 is located concentrically around return spring 6.

In an embodiment not shown here, the firing pin 11 may be rigidly mounted to the firing pin holder 10. This embodiment is suitable when cartridges with a lower power than the power for which the assembly according to the present invention was designed are used, for example, when the firearm is converted for use with training ammunition.

When you initially press the trigger 8 (see Fig. 2), the stopper 9 of the striker 11 rotates, and under the action of the shock spring 13, the holder 10 with the striker 11 begins to move in the direction of the breech 4.

In fig. Figure 3 shows the moment of contact of the firing pin 11 with the firing pin 5 and the bolt 4. A shot is fired, and the bolt 4, together with the firing pin 11, begins to move under the force of the shot backwards against the direction of the shot. The firing pin holder 10 still moves in the firing direction until the gap F between the firing pin holder 10 and the firing pin 11 is eliminated.

At the moment of impact between the striker holder 10 and the striker 11 (see Fig. 4), the shutter 4, moving together with the striker 11 at the moment, slows down.

In addition to slowing down the bolt 4, the impact also changes the direction of movement of the firing pin holder 10 and causes it to accelerate to a higher speed than the speed of the bolt 4.

Thus, the holder 10 with the firing pin 11 will move to the rear position, limited by the shock absorber 7 (see Fig. 5), in a shorter period of time than the bolt 4, and will begin to move in the direction of the shot against the movement of the breech 4. In the future, the holder 10 and the striker 11 will come into contact with the shutter 4 (see Fig. 6). Thus, the bolt 4 will not fall into the rear position specified by the shock absorber 7, but will be stopped by the impact of the holder 10 and the firing pin 11. This significantly reduces the recoil perceived by the shooter.

INDUSTRIAL APPLICABILITY

The bolt system braked by the percussion unit according to the invention is applicable in self-loading weapons, especially as a replacement for traditional dynamic bolts. While maintaining simplicity and reliability, it provides significant weight savings while reducing recoil. Compared to other brake or interlock systems, it is much easier to manufacture and maintain.

The invention is particularly applicable to firearms with lower power cartridges used in machine guns, such as 9x21 or 45 Auto. For use with even lower power cartridges, such as the 22 Long Rifle, the system can be easily adapted due to the fixed connection of the firing pin and its holder. The shutter braking function is thus purposefully disabled.

LIST OF REFERENCE SYMBOLS

1 breech

2 trigger housing

3 barrel

4 shutter

5 strikers

6 return spring

7 shock absorber

8 trigger

9 striker stopper

10 striker holder

11 drummer

12 shock spring

13 striker spring.

Claims (4)

1. Impact unit of an automatic firearm mechanism, containing a bolt (4), pushed in the direction of the barrel (3) by a return spring (6), and a holder (10) is located on the bolt (4) and/or in the breech (3) for sliding. striker, pushed in the direction of the bolt (4) by a shock spring (13), while a striker (11) is installed on the striker holder (10), characterized in that the striker (11) is located on the striker holder (10) with the ability to move between the front extreme position and the rear extreme position, while a gap (F) is provided between the front and rear extreme positions of the hammer (11), and the impact spring (12) pushes the hammer (11) to the extreme forward position. 2. Impact unit according to claim 1, characterized in that the front extreme position and rear extreme position of the striker (11) are specified by stops. 3. Impact unit according to claim 1 or 2, characterized in that the impact spring (13) is located concentrically around the return spring (6). 4. Impact unit according to any one of paragraphs. 1-3, characterized in that it is possible to attach the firing pin (11) to the firing pin holder (10).