JP2023081393A - Gun loading bullet and ejecting cartridge by rotation of lever handle - Google Patents

Abstract

To provide a gun allowing a loading of a bullet and an ejection of a cartridge by oscillating a breech bolt only by a single hand which grips the gun.SOLUTION: In a gun loading a bullet in a powder chamber and ejecting a cartridge from the powder chamber by oscillating a breech bolt arranged at a breech in a barrel shaft direction, a lever handle is provided at a lateral surface of a grip of the gun and a rotation of the lever handle is interlocked with an oscillation of the breech bolt.SELECTED DRAWING: Figure 1

Description

The present invention relates to gun barrels.

Conventionally, there was a method of swinging the barrel in the direction of the barrel axis by manually operating the barrel itself, a lever integrated with the barrel, or a link called a toggle action, but in either case the hand that grips the gun is separate. had to be operated manually.

To provide a gun capable of loading a bullet and ejecting a cartridge case by swinging a breech base in the axial direction of the barrel with only one hand holding the gun.

In order to achieve the above purpose, the gun that loads the bullet and ejects the cartridge case by rotating the lever handle swings the breech in the direction of the barrel axis to load the bullet into the chamber and release the cartridge. The gun of the type in which the cartridge case is ejected from the chamber is characterized in that a lever handle is provided on the side surface of the barrel, and the rotation of the lever handle is interlocked with the swinging of the barrel.

The lever handle provided on the side of the handle is pushed down with the thumb of the hand that holds the gun, rotated by a certain angle, released from the thumb, and returned to its original position by urging to swing the interlocking breech in the axial direction of the barrel. You can load bullets and eject cartridges with just one hand holding the gun.

Perspective view of a state in which the bullet is loaded in the chamber Perspective view of the state after ejection of the cartridge case from the chamber

The figure simplifies the structure for explanation only of the structure in which the breech rocks in conjunction with the rotation of the lever handle, which is a feature of this device, loads the bullet, and ejects the cartridge case. Known techniques such as springs that bias the handle back to its original position are omitted.
The rotation of the lever handle and the rocking motion of the breech may be interlocked, and although the figure has a link structure, a pinion rack or the like may be used, and the link structure is not limited.

A lever handle is a handle with a shape in which one end of a bar is fixed to a rotating shaft and the other end of the bar extends away from the rotating shaft on a plane orthogonal to the rotating shaft in order to rotate the shaft using the principle of leverage. be.
In this device, the axis of rotation of the lever handle is oriented in the lateral direction of the gun, and placed above one side of the barrel. there is
The axis of rotation of the lever handle is located near the base of the thumb of the hand holding the gun, and the lever handle is positioned parallel to the bottom of the thumb.
The lever handle and breech are spring biased to retract the breech.

When the lever handle shown in FIG. 2 is pushed down with the thumb and rotated by a certain angle, the breech bottom, which is interlocked via the link abc, advances to load the bullet in the magazine into the chamber, resulting in the state shown in FIG.
At this time, as shown in Fig. 1, the pin joint link becomes straight to form a dead point, or a mechanism such as a stopper works to fix the position so that the breech bottom does not retreat, then hold the gun with the same hand. Pull the trigger with your index finger to fire.
Furthermore, an interlock mechanism may be employed in which the trigger can be pulled only when the lever handle is pushed down and the breech bottom is fixed in the advanced position.
In addition, an interlock mechanism can be used in which the lever handle is locked at the depressed position during the initial movement of the trigger when the trigger is pulled, and the position of the lever handle is fixed at the time of firing. After firing, when the index finger is returned, the trigger returns, the position lock of the lever handle is released, and when the thumb is raised, the lever handle returns due to the bias, the interlocking breech base retreats, and the cartridge case in the chamber is discharged. It will be in the state of FIG. 2 in which bullets can be loaded.
If you can't return it with just the force of the bias, you can force the cartridge case out by pushing up the lever handle.

A feature of this device is that it can be operated with only one hand compared to conventional methods.
You can load the bullet and eject the shell just by moving your thumb while holding the gun toward the target. Compared to automatics that use backward pressure at the time of firing, it is inferior in rapid fire, but there are few malfunctions during loading and ejection, and even if it does not fire, it can be forcibly ejected and reloaded with just one hand.
In practice, the lever handle is pushed down and the barrel is pushed forward, and the gun is fitted into the holster. There is no risk of accidental discharge during carrying, if the lever handle is pushed down during the process of retreating and pointing the gun at the target, or if the bullet is loaded after pointing it.
Even if you point the gun at the target and put your finger on the trigger, there is no risk of accidental discharge unless you intentionally push down the lever handle to load the bullet.
Loading a bullet by pressing down on the lever handle with your thumb is faster than holding an automatic gun and pulling the breech with the other hand to load the bullet.
The thumb of the hand that holds the gun handle has a weak lateral force, but a strong downward force.
By pressing down on the fully rotated lever handle with your thumb, which has the strongest force, you can hold the gun more stably when firing than with a conventional gun.
It has no recoil, has a simple structure, has a low barrel axis, a fixed barrel, and is small, inexpensive, lightweight, and safe with little danger of accidental discharge.
On the other hand, if it is applied to large ammunition that has a large amount of powder and is not suitable for automatic transmission, it will be a large gun with fewer malfunctions, a larger capacity than a revolver, and quick exchange of magazines.

1 barrel 2 breech 3 link a
4 link b
5 link c
6 Lever handle rotation axis 7 Lever handle 8 Trigger 9 Bullet

Claims (1)

A gun in which a bullet is loaded into a chamber and a case is ejected from the chamber by swinging a breech breech in the axial direction of the barrel, and a lever handle is provided on the side of the barrel, A gun in which a bullet is loaded and a cartridge case is ejected by rotation of the lever handle, characterized in that rotation of the lever handle is interlocked with swinging of the barrel.

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