RU160918U1 - PNEUMATIC FIRING DEVICE - Google Patents

Abstract

1. A pneumatic firing device in the form of a writing pen, containing a barrel, a piston and a trigger, characterized in that it contains a metal receiver with a valve for charging it with gas and firing and a trigger attached to the receiver with a thread and containing a lever with a pushing rod, made with the possibility of impact on the valve stem of the receiver to make a shot, while the barrel is installed inside the receiver and is configured to charge it with a missile projectile from the muzzle, and the piston placed inside the receiver, made non-metallic glass-like with full coverage of the barrel section and has a sealant. 2. The device according to claim 1, characterized in that the projectile is a bullet or a dart. 3. The device according to claim 1, characterized in that compressed air, carbon dioxide or nitrogen is used for charging. The device according to claim 1, characterized in that the piston is made of fluoroplastic. 5. The device according to claim 1, characterized in that the barrel can be smooth or rifled.

Description

This technical solution relates to pneumatic weapons.

The Dart Pen pneumatic fountain pens (created for the Office of Special Operations (SOE), United Kingdom) (Airguns in Russia Historical Series 3/2003.) And Air-Pen (Air-Pen) are known in the art. ) (created for the Office of Strategic Services (OSS)) developed during World War II. (The similarity with my device is that the force of compressed gas (air) is used to produce the shot.) These firing devices, designed to throw a dart-like projectile, had a spring-piston pneumatic circuit in which the projectile is thrown at the expense of air energy dynamic compression piston with spring. One of the main disadvantages of this technical solution is that the spring-piston part occupied a significant part of the body, so the barrel had to be made short to comply with the dimensions, as a result of which the speed and stability of the projectile were not very large. Also, the spring-piston arrangement itself has a small efficiency, since the relatively low spring stiffness and the small size of the compression chamber do not allow the projectile to transfer the necessary energy.

The task to which this technical solution is directed is to eliminate the shortcomings of the closest analogues and create a portable pneumatic shooting device resembling a handle for use, for example, for self-defense, in explosive areas where the use of firearms is unacceptable, or for entertaining shooting.

This task is achieved due to the fact that the pneumatic firing device contains a receiver filled with gas, a barrel installed inside the receiver, into which a projectile is charged from the muzzle, a light freely moving non-metallic glass-shaped piston with a seal located inside the receiver and completely covering the barrel section, a valve , which is used both to charge the receiver with gas, and to fire a shot, as well as the trigger mechanism, which is attached to the receiver by a thread, consists of lever and push rod, is separated during charging and acts on the valve stem to fire a shot.

An additional feature is that the projectile is a bullet or a dart.

An additional feature is that compressed air, carbon dioxide or nitrogen is used for charging.

An additional feature is that the piston is made of fluoroplastic.

An additional feature is that the barrel can be smooth or rifled.

Brief Description of the Drawings

FIG. 1 - is a section of a pneumatic firing device with an indication of the elements (the device is disassembled).

FIG. 2 - is a sectional view of a pneumatic firing device assembled (all elements are in a static state).

FIG. 3 - is a section of a pneumatic firing device before firing.

FIG. 4 - is a section of the device firing pneumatic at the time of the shot.

The pneumatic firing device (Fig. 1) consists of a metal casing / tank (1) in which the barrel (2) and a pipe with thread (12) are centrally fixed (into which an element 5, which is a type of Schrader valve, is screwed in), which connects body and trigger mechanism (9).

The trigger mechanism is a clip / lever (7) (mounted on an axis and spring-loaded by element 8), a rod (11) and a rod spring (10). A channel (6) for gas exhaust was also drilled.

One of the main elements is a piston (4) with a seal (3) fixed in it. Under the elements 13 and 15 are indicated the chambers in which the air is located;

The piston (4) is made in the form of a glass and is made of fluoroplastic, which allows to reduce weight and eliminate the piston distortion inside the receiver. Also, due to the small coefficient of friction between the metal and the fluoroplastic, the minimum possible friction force of the piston against the receiver is achieved, which allows the piston to quickly open the gas passage from the receiver to the barrel during the shot.

Thrown elements can be steel balls or lead bullets, as well as darts or arrows.

The barrel can be both smooth for throwing steel balls or dart-shaped elements, and rifled for throwing lead bullets.

Also, in one embodiment of the present device, it may additionally have a knurling on the body for better grip in the hand, as well as notches on the body, acting as sights (not shown in the figures).

The layout of the elements is specially selected so that the device resembles a regular writing pen.

The device operates as follows:

The trigger mechanism is separated from the tank. A pump is screwed onto the tube 12 and through the valve 5 inside the tank 1 injects gas under pressure, not only the chamber 13, but also 15 is filled (due to the fact that the space between the piston 4 and the housing was not specially sealed, and the piston is free, without effort moves inside the case). The gas with which the tank is filled presses on the piston 4, pressing it with a sealant 3 to the barrel 2 (the pressure in 13 and 15 is the same). Then, instead of the pump, the trigger mechanism is screwed onto the tube 12. A projectile 14 is loaded into the barrel 2 from the barrel.

Next, you need to shoot, after which the charging process is repeated.

The safety of a loaded weapon is ensured by the fact that the spring 8 presses the clip 7, not allowing accidentally pushing the rod. The spring 10 of the stem 11 prevents it from hanging in the channel and interacting with the valve stem in the normal state. Gas presses the piston with great force, not allowing it to open, and since the piston is made of light material, even when the device falls, the piston will not have the energy necessary to overcome the pressure.

Ways for the most convenient shot:

1. The device lies in the hand and is pressed to the palm with a few fingers. With the thumb or forefinger, the clip is cocked into state “a” of FIG. 3, and then extends to state “b” of FIG. 4. A shot occurs. With this type of shooting, accuracy over relatively long distances is slightly impaired. Allows you to shoot with one hand when you need a quick hit on a target at short distances.

2. The device rests against the thumb in the palm of the hand. It is held by the thumb, middle and forefinger of the other hand (the device is placed on the middle finger and grasped on both sides by the thumb and forefinger). With the index or middle finger of the hand, into which the device rests, the clip is cocked into state “a” of FIG. 3, aiming is performed and the clip is squeezed to the state “b” of FIG. 4. A shot occurs. With this type of shooting, the use of two hands leads to a rigid fixation of the device in the hand and the recoil is well absorbed by the palm of your hand, which allows you to hit targets located at a certain distance.

There are other options for holding the device for firing a shot.

How the shot happens:

Clip 7 when cocked into state “a” of FIG. 3, abuts against the stem 11, which in turn abuts against the valve stem 5. When we push the clip further (to state “b” of Fig. 4), it acts on the valve stem 5 with the rod 11 and opens it. The part of the gas that is in the chamber 13 quickly exits through the valve 5 into the hole 6. The pressure in the chamber 13 drops sharply, but since the gas exited quickly, the gas from the chamber 15 cannot instantly equalize the pressure between the chambers 13 and 15, therefore the gas presses with great force on the light piston 4, instantly shifting it to the tube 12, thereby opening the gas passage into the barrel to transmit energy to the projectile 14. The projectile 14 takes off from the barrel 2.

Claims (5)

1. A pneumatic firing device in the form of a writing pen, containing a barrel, a piston and a trigger, characterized in that it contains a metal receiver with a valve for charging it with gas and firing and a trigger attached to the receiver with a thread and containing a lever with a pushing rod, made with the possibility of impact on the valve stem of the receiver to make a shot, while the barrel is installed inside the receiver and is configured to charge it with a missile projectile from the muzzle, and the piston placed inside the receiver, made non-metallic cup-shaped to ensure complete overlap of the barrel section and has a sealant. 2. The device according to p. 1, characterized in that the projectile is a bullet or a dart. 3. The device according to claim 1, characterized in that compressed air, carbon dioxide or nitrogen is used for charging. 4. The device according to claim 1, characterized in that the piston is made of fluoroplastic. 5. The device according to p. 1, characterized in that the barrel can be smooth or rifled.

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