JPH05712Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application This invention relates to a bullet extractor for pulling out simulated shells, so-called imitation bullets, used in gun loading training from gun barrels.

(b) Conventional technology Fake bullets are used in gun shooting training. Artillery shells, including imitation shells, are equipped with a bandolier at the rear of the shell in order to stab the propulsive force of the shell by biting into the spiral striations provided on the inner surface of the gun barrel. The cannonball is guided by the rod and is loaded while rotating. Conventional bullet extraction tools for imitation bullets have been rod-shaped with a threaded portion at the tip that is screwed into a screw hole provided at the rear of the imitation bullet.

(c) Problems that the invention aims to solve In addition to target practice in which actual shots are fired, gun handling training includes so-called loading training, which involves repeatedly inserting a fake bullet into the gun barrel and pulling it out from the barrel again. There is. In order to perform loading training using this conventional bullet extraction tool, it is necessary to screw the threaded part at the tip of the bar-shaped bullet extraction tool into a screw hole provided in the fake bullet and then pull it out. need to be rotated,
It wasn't very efficient. Moreover, as the number of times the bullet extraction tool was used increased, both the threaded part of the bullet extraction tool and the threaded part of the fake bullet wore out, so there was a problem in that it was necessary to replace them from time to time. .
The present invention aims to solve these problems.

(d) Means for solving the problem The present invention uses an adapter that is attached to a fake bullet and has a female bayonet part, and a extraction rod that has a male bayonet part that can be fitted into the female part of the bayonet to extract the bullet. The above-mentioned problems are solved by constructing the adapter and providing the adapter with a recess that fits into the jaw of the male bayonet of the extraction rod.
In other words, the bullet extractor of the present invention is a bullet extractor for extracting imitation bullets used for loading training from a gun barrel.
It consists of an adapter that is attached to the rear of the imitation bullet and has a hole, and a extraction rod that can be inserted into the hole and has a nearly rectangular brim, the hole having a front half that is approximately rectangular, The rear part is a fan-shaped enlarged hole that allows the collar of the extraction rod to be rotated approximately 90 degrees, and this enlarged hole has an approximately 90-degree enlarged hole that can be fitted with the jaw of the extraction rod. A rectangular recess is provided.

This adapter is preferably provided with a threaded part on the outer diameter part that can be screwed into the threaded hole provided in the imitation bullet, and the recessed part provided in the adapter is perpendicular to the hole provided in the front half part. It is convenient to use it if it is provided in a direction that intersects with the .

(E) Effect During loading training, when pulling out the imitation bullet that was pushed into the gun barrel, insert the extraction rod into the bayonet hole of the adapter screwed into the rear of the imitation bullet, and when it reaches the enlarged hole, pull out the extraction rod. When turned 90 degrees and returned to the extraction direction, the jaws of the extraction rod are fitted into the recesses of the adapter, and the imitation bullet, adapter, and extraction rod are integrated, making it easier to extract the imitation bullet. When the fake bullet is rotated along the stripes provided on the inner surface of the gun barrel during the extraction operation, the extraction rod comes off from the adapter because the jaws of the extraction rod fit into the recesses of the adapter. This can be prevented.

(F) Embodiments Hereinafter, embodiments of the present invention will be described in detail based on the drawings. FIG. 1 shows a front view of an adapter 1, which is one member of a bullet extractor according to an embodiment of the present invention, and a second
The figure is a sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a perspective view showing an embodiment of the extraction rod 11, which is used in combination with the adapter 1 and is the other member of the bullet extraction tool. FIG. 4 is an explanatory diagram of the relationship between the gun barrel and the loading status of the imitation bullet.

A screw 2 is provided on the outer diameter portion of the adapter 1, and is screwed into a screw hole 32 of a fake bullet 31 to be integrated with the fake bullet 31. The adapter 1 is provided with a hole 3 that is approximately rectangular and has an arc-shaped bulge in the center.
Both ends of the long side are also arcuate. adapter 1
From about half of the thickness of the hole 3 onward, an enlarged hole portion 4 in the shape of a sector facing each other and having a diameter equal to the length of the long side of the hole 3 and a central angle of approximately 90 degrees is provided. A recess 5 having the same shape as the hole 3 is provided on the end surface where the enlarged hole 4 and the hole 3 connect in a direction perpendicular to the hole 3. The depth of the recess 5 is selected to a value that will prevent the jaw 14 from coming off when the jaw 14 of the pull rod 11, which will be described later, is rotated. The two jig holes 6 are provided for attaching a jig for attaching and removing the adapter 1 to the screw hole 32 of the imitation bullet 31. In FIG. 3, the extraction rod 11 is formed from a shaft 12 and a substantially rectangular collar 13 provided at the tip of the shaft 12, and this collar 13 is fitted into the hole 3 of the adapter 1 described earlier. The jaws 14 of the collar 13 can be fitted into the recesses 5 of the adapter 1.

Next, the operation of this embodiment will be explained. During loading training, it is assumed that the adapter 1 is screwed into the screw hole 32 of the fake bullet 31 in advance, and is pushed into the gun barrel from the chamber 22 of the gun barrel 21. Next, move on to the bullet extraction operation, insert the extraction rod 11 into the hole 3 of the adapter 1 with the collar 13 first, and when it reaches the enlarged hole 4, rotate it 90 degrees to the right, and the jaw 1 of the collar 13 will be removed.
4 is in a position where it can fit into the recess 5. In this state, the jaw part 14 that returns the extraction rod 11 in the extraction direction is fitted into the recess 5, and by pulling out the extraction rod 11, the fake bullet 32 is moved along with the extraction rod 11 to the gun barrel 2.
be extracted from. At this time, the imitation bullet 31 is subjected to rotational movement by the spiral strip 23 carved in the gun barrel 21, but since the jaw 14 of the collar 13 is fitted into the recess 5 of the adapter 1, the extraction rod 11
will not come off from adapter 1.

(g) Effects of the invention As explained above, according to the invention, when pulling out the imitation bullet from the gun barrel, the adapter and extraction rod attached to the imitation bullet are attached and removed using a bayonet mechanism. This not only makes it possible to work quickly, but also because the adapter has a recess that fits into the collar of the pull-out rod, so the pull-out rod will not come off from the adapter during removal, making it more reliable. Can do bullet extraction work. In addition, even if the extraction bar is used many times, only a slight play occurs in the axial direction, so it can be expected to have a much longer lifespan than conventional screw-type bullet extraction tools.

[Brief explanation of the drawing]

Figure 1 is a front view of an adapter which is one member of the bullet extractor of the present invention, Figure 2 is a sectional view taken along line A-A in Figure 1, and Figure 3 is the other member of the bullet extractor. FIG. 4 is a perspective view showing an embodiment of the drawing rod, and FIG. 4 is an explanatory diagram of the relationship between the gun barrel and the imitation bullet in a loaded state. 1...Adapter, 2...Screw, 3...Hole, 4...
...Enlarged hole part, 5...Concave part, 6...Jig hole, 11...
...Drawing rod, 12...Shaft, 13...Brim, 14...
Jaw section, 21... barrel, 22... chamber, 23...
Strips, 31...imitation bullets, 32...screw holes.

Claims (1)

[Claims for Utility Model Registration] 1. A bullet extractor for extracting a fake bullet from a gun barrel used for loading training, which includes an adapter that is attached to the rear of the fake bullet and has a hole, and an approximately rectangular shape that can be inserted into the hole. It consists of a pull-out rod with a brim, and the hole has a substantially rectangular front half and a fan-shaped enlarged hole in the rear half that allows the brim of the pull-out rod to be rotated approximately 90 degrees. An extraction tool for a fake bullet, characterized in that the enlarged hole is provided with a substantially rectangular recess that can fit with the jaws of the extraction rod. 2. The bullet extraction tool for fake bullets according to claim 1, wherein the adapter has a threaded portion on its outer diameter that can be screwed into a screw hole provided in the fake bullet. 3. The recess provided in the adapter is provided in a direction substantially perpendicular to the hole provided in the front half. ammunition.