CZ309730B6 - A grenade launcher with a barrel that slides relative to the base of the trigger mechanism - Google Patents

Abstract

A grenade launcher with a barrel (1) that slides between the front and rear positions relative to the base (5) of the trigger mechanism, while the barrel (1) is secured by a catch (3) in the rear locked position. The barrel (1) is securely mounted on guide rails (2), the guide rails (2) are on opposite sides of the base (5) of the trigger mechanism. The latch (3) is on the side of the barrel (1) and is pressed against one of the guide rails (2) by a spring, the latch (3) in the locked position of the barrel (1) fits into the recess (7) in the corresponding guide rail (2) .

Description

A grenade launcher with a barrel that is slidably arranged relative to the base of the trigger mechanism

Field of technology

The invention relates to a grenade launcher with a barrel that is slidably arranged between the front and rear positions relative to the base of the trigger mechanism, the barrel being secured by a latch in the rear locked position.

Current state of the art

A grenade launcher is a light weapon designed to destroy armored targets, manpower and military equipment located in open terrain or in field-type shelters. Grenade launchers can fire a wide variety of grenades, for example cumulative, penetrating, fragmentation and special types (thermobaric, smoke, lighting, incendiary, gas, etc.).

The grenade launcher can be used either alone or attached to an assault rifle.

When loading or extracting a fired cartridge, the barrel can either be tipped to the side or the barrel can be moved forward.

In known grenade launchers, the tilting or sliding barrel is locked into the bolt. These systems have very complicated and detailed locking elements that are complex both to manufacture and to function.

For forward-barrel grenade launchers, a latch is sometimes used to lock the barrel, which is arranged in the frame of the weapon.

The goal of the invention is to design such a barrel locking that would be simple both to manufacture and to operate.

The essence of the invention

The stated goal is achieved by a grenade launcher with a barrel that is slidably arranged between the front and rear positions relative to the base of the trigger mechanism, while the barrel is secured in the rear locked position by a latch, according to the invention, the essence of which is that the barrel is securely mounted on guide rails, wherein the guide rails are arranged on opposite sides of the base of the trigger mechanism. The latch is placed on the side of the barrel and is pressed against one of the guide rails by a spring. The latch in the locked position of the barrel fits into the recess in the corresponding guide bar.

According to a preferred design, the guide rail passes through longitudinal holes in the barrel.

According to another advantageous embodiment, the guide rails are connected to the base of the trigger mechanism in a replaceable manner, preferably screwed on.

For right-handed grenade launchers, the latch is preferably located on the left side of the barrel and fits into the recess in the left guide rail.

In the extended position of the barrel, the latch preferably rests on the front of the guide bar to prevent the barrel from being inserted by itself.

- 1 CZ 309730 B6

The advantage of the solution according to the invention is that the guide rails enable several functions to be implemented. They primarily serve to guide the barrel, but at the same time they also carry a locking recess, and their front in cooperation with the latch serves to block the barrel in the open position.

The desired range of barrel extension can be easily adjusted by choosing different lengths of replaceable guide rails.

Guiding the barrel on the side guides and locking with a latch located on the side of the barrel allows to reduce the height of the weapon, which is thus more ergonomically friendly to the user if the grenade launcher is deployed under the host weapon or on a separate carrier. At the same time, the side latch is much more intuitively accessible to the non-shooting hand.

The guidance of the barrel on the side guides is not dependent on the frame of the weapon and is not limited by the interface and installation of the host weapon for mounting this grenade launcher. Well-known grenade launchers with a "frame" require a certain length of the clamping interface, which can be a problem for weapons with a shorter forend. The grenade launcher according to the invention requires only a minimum length, which is also used for common accessories (flashlights, lasers, etc.), i.e. it can be mounted even on a very short rifle.

While maintaining simplicity, the solution according to the invention brings much greater reliability, more intuitive user handling and is significantly simpler to manufacture and maintain.

Clarification of drawings

The invention will be described in more detail on the example of a specific embodiment of the grenade launcher according to the invention, shown in the attached images, in which the individual images represent:

Fig. 1 is an incomplete grenade launcher according to the invention with the barrel in the forward open position, mounted on a MIL-STD-1913 host clamping interface;

Fig. 2 grenade launcher according to Fig. 1 with the barrel in the rear closed position; and Figure 3 shows a grenade launcher of the invention mounted on a host assault rifle.

Examples of implementation of the invention

Fig. 1 and 2 show the main parts of the grenade launcher according to the invention. Figures 1 and 2 do not show, for the sake of simplicity, parts that are not necessary for the description of the modifications according to the invention.

In the role of an outboard weapon, the grenade launcher is attached to the lower host clamping interface 4 of the assault rifle 8 (see Fig. 3).

In stand-alone use, not shown, the grenade launcher mounts via a MIL-STD-1913 type Host Clamping Interface 4 to a carrier equipped with a handle, a folding detachable shoulder rest and simple mechanical sights on the top rail of the Host Clamping Interface 4.

The grenade launcher has a barrel 1, which is slidably arranged between the front and rear positions relative to the base 5 of the trigger mechanism.

Guide rails 2 are screwed to the opposite sides of the base 5 of the trigger mechanism. The barrel 1 is securely mounted on the guide rails 2, which pass through the longitudinal holes in the barrel L

-2CZ 309730 B6

The barrel 1 is secured in the locked position by a latch 3, which is placed on the side of the barrel 1 and is pressed against the guide rail 2 by a spring (not shown).

In the right-handed grenade launcher according to Fig. 1 and 2, the catch 3 is located from the shooter's point of view on the left side of the barrel 1 and fits into a pair of recesses 7 in the left guide bar 2. Considering the amount of stress from the shot, of course, in some designs, a single recess 7 is sufficient.

In the extended position of the barrel 1, the latch 3 rests on the front of the guide bar 2 and thus prevents the barrel 1 from being pushed back by itself. Such blocking of the barrel 1 in the open position helps the user to extract the fired cartridge more easily in the case of so-called difficult extraction, when greater force is needed to extract the cartridge from the cartridge chamber.

When loading the grenade launcher, the latch 3 is pressed against the force of a spring (not shown), thereby pushing the latch out of the recess 7, and by sliding along the guide rails 2, the barrel moves to the front position (see Fig. 1).

After that, a cartridge is inserted into the rear hole of the barrel 1 and the barrel 1 is moved to the rear closed position, where the latch 3 automatically fits into the recess 7 in the left guide bar 2 by spring pressure, thereby securing the barrel 1 and the grenade launcher is ready to fire. The shot is fired by pulling the trigger (not shown), which activates the trigger mechanism (not shown).

After the shot, the shooter presses the latch 3, thereby releasing the barrel 1, which he moves to the front position and can remove the fired cartridge case.

When the barrel is extended to the maximum forward position, the latch 3 rests against the face of the guide rail 2 under spring pressure and locks the barrel 1 in the open position. This will make it easier to extract the fired cartridge case. After depressing the latch 3, the barrel 1 can be moved back to the closed position along the guide rails 2.

Claims (5)

PATENT CLAIMS 1. A grenade launcher with a barrel (1) which is slidably arranged in relation to the base (5) of the trigger mechanism between the front and rear positions, while the barrel (1) is secured in the rear locked position by a latch (3), characterized in that the barrel (1 ) is slidably mounted on guide rails (2), while the guide rails (2) are arranged on opposite sides of the base (5) of the trigger mechanism, and the latch (3) is mounted on the side of the barrel (1) and pressed against one of the guide rails by a spring ( 2), while the latch (3) in the locked position of the barrel (1) fits into the recess (7) in the corresponding guide bar (2). 2. Grenade launcher according to claim 1, characterized in that the guide rails (2) pass through longitudinal holes in the barrel (1). 3. Grenade launcher according to any one of claims 1, 2, characterized in that the guide rails (2) are connected to the base (5) of the trigger mechanism in a replaceable manner, preferably screwed. 4. A grenade launcher according to any one of claims 1, 2, 3, characterized in that the latch (3) is placed on the left side of the barrel (1) in a right-handed grenade launcher and fits into the recess (7) in the left guide rail (2). 5. A grenade launcher according to any one of claims 1, 2, 3, 4, characterized in that in the extended position of the barrel (1), the catch (3) rests on the front of the guide rail (2) to prevent spontaneous insertion of the barrel (1).