KR100308797B1 - Bullet without empty cartridge - Google Patents

Abstract

Bullet-free bullets are provided that are easy to carry and can significantly reduce manufacturing costs. The bullet includes a streamlined warhead and a bullet core including a cylindrical body integrally formed with the warhead, a casing formed on an outer surface of the warhead, a propellant charged inside the warhead at the rear of the warhead, and filled adjacent to the propellant. It includes a propellant, an injection hole formed adjacent to the propellant, and a primer mounted on the rear surface of the bullet core to expose one side. In addition, in order to fire such a bullet, the rifle has a hole having a diameter corresponding to the bullet is formed therein, a ball bundle having a diameter corresponding to the bullet and a ball bundle having a heat radiation hole formed on the side. Since the cost of administering the casing can be reduced, the manufacturing cost of the entire bullet can be significantly reduced, and the number of bullets that an individual can carry can be greatly increased. In addition, since there is no shells scattered during the shooting of the rifle, it is possible to reduce the effort to recover the shells after shooting in general, and to hide the traces of allies in wartime, which is particularly effective for searchers and infiltrators. to be.

Description

Bullet without empty cartridge {Bullet without empty cartridge}

The present invention relates to bullets, and more particularly to bullets having no shells.

In general, bullets are small ammunition of stationary firearms or gripping firearms having a diameter of about 30 mm. These bullets are divided into ordinary coals, tracers, peat coals, iron shells, iron shells peat, horror shells, iron shells boulder, high-explosive peat and training bullets. Normal bullets, ordinary bullets, consist of a weak council, a detonator, a certain amount of propellant, and a warhead. The dread bullets and grenades are covered with alicyclics instead of warheads.

Figure 1 shows a schematic cross-sectional view of a conventional bullet.

Referring to FIG. 1, a conventional bullet 100 is formed in a warhead portion 105 made of iron or lead and a warhead portion of the bullet core 105 according to the type of bullet and includes a shell 110 made of copper or the like. A warhead 130, a portion of the bullet core 105 is inserted into a cylindrical shell shell 115 is filled with a predetermined amount of propellant 120 and a primer 125 mounted in the center of the rear of the shell shell 115.

Primer 125 of bullet 100 is generally of an impact or electric type. The impact primer is composed of a brass or metal cup containing explosives fixed by the ground and a ignition gold, and the electrical primer consists of an electrode button, a furnace tube, and an insulator contacting the primer.

Bullet 100 is loaded with propellant 120 of various weights. The propellant 120 serves to give sufficient speed under a safe pressure so that the warhead 130 can fly ballistically.

The shell case 115 may be made of a material such as steel, zinc, aluminum, or plastic, but brass, which is typically an alloy of 70 percent (%) of copper and 30 percent of zinc, is the material of the shell case 115. It is used a lot. Inserting such a bullet into the magazine, then loading the magazine into a semi-automatic rifle such as the K-1 or M16A2 and triggering the trigger, causes the bullet to fire and the casing to fly from the side of the rifle.

However, the above-described conventional bullet has some problems due to the casing having a much larger volume and weight than the warhead, which will be described below.

First, as described above, since the casing is manufactured by using an alloy of copper and zinc, a problem arises in that the manufacturing cost of the entire bullet is increased due to the cost of administering the casing. That is, in the case of a general bullet, the cost of producing the casing accounts for an excessive ratio of about ⅔ of the total manufacturing cost of the bullet.

In addition, since the shell volume is much larger than a warhead, only about 30 bullets can be stored in a rifle magazine such as the M16A2, and the number of bullets that an individual can carry is inevitably limited.

Moreover, after the rifle shooting in the shooting range for soldiers training, a lot of time and personnel are invested to recover the scattered shells scattered in all directions, and it is difficult to recover the casings completely even after such a process. .

The present invention has been made to solve the above-mentioned problems of the conventional bullet, one object of the present invention is to provide a bullet that does not have a casing.

1 is a schematic cross-sectional view of a conventional bullet.

2 is a cross-sectional view of a bullet according to an embodiment of the present invention.

3 is an enlarged cross-sectional view of an injection hole in the bullet of FIG. 2.

4 is an enlarged cross-sectional view of a primer of the bullet of FIG. 2.

5 is a rear view of the bullet centered on the primer shown in FIG. 4.

6A is a front view of a bunch of bolts of a conventional rifle.

FIG. 6B is a front view of a bunch of bolts of a rifle using the bullet of FIG. 2; FIG.

FIG. 7A is a side view of the apparatus shown in FIG. 6A.

FIG. 7B is a side view of the apparatus shown in FIG. 6B.

8A is a perspective view of a ball of a conventional rifle.

8B is a perspective view of a ball of a rifle using the bullet of FIG. 2.

9 is a partial perspective side view of the rifle using the bullet of FIG.

<Explanation of symbols for the main parts of the drawings>

200 ： Bullet 210 ： Armor

215 warhead 220 warhead

225 body 230: propellant

240: Launching agent 250: Spraying mouth

260: trigger primer 270: detonation

280: black powder 290: moisture proof member

300: bundle of keys 310: heat dissipation hole

320: Ball 350: Rifle

355: Muzzles 360: Barrels

365: Greatsword Flower 370: Handguard

375: sight 380: gas outlet

385: bundle of balls 390: ball

395: Loading Handle 400: Bundle of Stalls

405: trigger 410: magazine

415: shock absorber 420: butt plate

According to an embodiment of the present invention in order to achieve the above object of the present invention, a bullet core including a streamlined warhead and a cylindrical body integrally formed with the warhead, a shell formed on the outer surface of the warhead, the rear of the warhead A bullet-free bullet is provided that includes a propellant charged inside the bullet core, a propellant charged adjacent to the propellant, an injection hole installed adjacent to the propellant, and a primer mounted on the rear surface of the bullet core to expose one side. .

Preferably, the rear surface of the bullet core has a double cylindrical structure. That is, the rear surface of the bullet core is formed inside the cylindrical body of the cylindrical end that gradually narrows around the axis of the bullet. At this time, a curved portion is formed around the injection hole on the outer circumferential surface of the inner core.

At the periphery of the primer is formed a moisture-proof member consisting of a thin paper film coated with a desiccant.

As described above, according to the present invention, since it is not provided with a casing, the cost of administering the casing can be reduced, thereby significantly reducing the manufacturing cost of the entire bullet, and the number of bullets that an individual can carry. Can be increased significantly. In addition, since there are no bullets scattered during rifle firing, such as soldiers 'training, the team can save efforts to recover them after shooting, and hide allies' traces during wartime. Greater effects can be expected when crews or penetration agents use bullet casings according to the present invention. Efforts to recover shells after shooting can be saved.

Hereinafter, a semi-automatic rifle having a bullet-free bullet and an improved structure according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the following embodiments.

2 is a cross-sectional view of a bullet according to an embodiment of the present invention.

2, the bullet 200 according to the present invention includes a bullet core 220, a shell 210, a propellant 230, a propellant 240, an injection port 250, and a trigger primer 260.

Depending on the application, the bullet core 220 made of steel or lead is composed of a streamlined warhead 215 of the head portion and a cylindrical body 225 integrally formed therewith. The bullet 200 has a total length of about 20 mm and a diameter of about 3 mm. At this time, the warhead 215 portion is formed to a length of about 7.83mm, the armored shell 210 wraps around the core 220 to a thickness of about 0.33mm, but the armored shell 210 in front of the warhead 215 portion is about 0.67 It is formed thick about mm. As such, the shell 210 covering the outside of the core core 220 is made of brass or copper and is formed to have the same shape as the core core 220.

The propellant 230 is loaded inside the cylindrical warhead 220 in contact with the warhead 215, the propellant 240 is loaded behind the propellant 230. When the bullet 200 has the size described above, the propellant 230 is loaded with a thickness of about 5 mm inside the bullet core 220, and the propellant 240 is filled with a thickness of about 3.5 mm.

The injection port 250 for the injection of the propellant 230 and the propellant 240 is formed at the rear of the bullet core 220 so that the bullet core 220 including the warhead 215 can be fired at a predetermined speed. 3 is an enlarged cross-sectional view of a portion of the injection hole 250 of the bullet 200 of FIG. 2. As shown in FIG. 3, the rear surface of the bullet core 220 has another small cylindrical end portion formed inside the cylinder. It has a double cylindrical structure. That is, the outside of the rear of the bullet core 220 maintains the cylindrical shape as it is, and the inside has a dual structure in which the cylindrical shape gradually narrows around the axis 200 and another cylindrical end is formed. The injection hole 250 for injecting the combustion gas of the propellant 230 and the propellant 240 is formed on the inner rear surface of the bullet core 220. The injection hole 250 is a hole formed in the circumferential direction at a predetermined angle on the inner rear of the core 200, through which the combustion gas of the propellant 240 and the propellant 230 is injected. The bullet 200 is advanced by the propulsion force by the gas injected from the injection hole 250, the bullet 200 is advanced even without the casing due to the strong propulsion force. According to the present embodiment, the injection hole 250 is a trigger primer 260 It is formed of five holes formed in the periphery of the moisture-proof member 290 is covered with the injection port 250 to block the inside and the outside. As shown in this embodiment, the number of the injection port is not limited to five, casing The size, shape and number of injection holes may vary depending on the diameter of the bullet 200 and other purposes of the bullet 200.

Contents warhead cartridge case weight Effective range Conventional bullet O O 20 g 460 m The present invention O X Approximately 15 g Same as before Looking at [Table 1] above, the effective range is the same as the conventional bullet, showing the same performance. However, despite the same performance, since the weight is reduced by 25% compared to the conventional bullet, an economically advantageous effect can be obtained. FIG. 4 is an enlarged cross-sectional view of the trigger primer in the bullet 200 of FIG. 2 and 4, the trigger primer 260 is filled with a black explosive 280 for igniting the detonating agent 270 for firing the bomb core 220 and the detonating agent 270. The trigger primer 260 is mounted on the inner rear end of the dual core core 220, the head has a length of about 0.33mm, the body portion is manufactured in a riveted shape having a length of about 1.33mm. At this time, the diameter of the trigger primer 260 is about 0.67 mm. When the trigger primer 260 is impacted by the bundle of balls 300 shown in FIG. 6B, the black powder 280 is exploded and black. The explosive 270 adjacent to the gunpowder 280 is ignited. The spark of the ignition detonator 270 is sequentially transferred to the propellant 240, the propellant 230 or to increase the temperature and pressure in the bullet 200 to ignite the propellant 240 and the propellant 230. Due to the difference in physical distance from the detonator 270, the propellant 240 is first ignited in time and then the propellant 230 is ignited. The thrust force formed by the propellant 240 and the propellant 230 is fired and accelerated by the bullet 200. The black powder 280 and the detonator 270 function as a primer of the conventional bullet. As the black powder 280, a general powder used for a ignition agent of a lead-free powder, a flame such as a firecracker, and the like, and as the detonation powder 270, a lightning strike (mercury thunder), lead nitride, stiff nite lead, tetracene, DDNP ( diazodinitrophenol) and the like. FIG. 5 shows a rear view of the bullet 200 centering on the trigger primer shown in FIG. 4.

However, since the bullet according to the present invention does not have a separate casing, it is difficult to use it as it is in a conventional rifle such as K-1 or M16A2, while simultaneously discharging the high-temperature and high-pressure gas generated when the bullet is fired. For heat dissipation of the rifle, the present inventors have developed a semi-automatic rifle having an improved structure so that bullet-free bullets can be used.

In the semi-automatic rifle according to the present embodiment, except for the ball bundle and the ball, which must have a changed structure according to the change of the bullet, other parts are the same as the conventional semi-automatic rifle, and thus the description thereof is omitted. However, as described above, if the size of the bullet is reduced, the size of the magazine for loading the bullet may be reduced.

FIG. 6A is a front view of a ball of rifle of a conventional rifle, FIG. 6B is a front view of a ball of rifle using a bullet of FIG. 2, FIG. 7A is a side view of the device shown in FIG. 6A, and FIG. 7B is of FIG. 6B Side view of the device shown.

6a to 7b, the hole formed in the end contacting the bullet 200 of the bolt bundle 300 of the rifle according to the present invention is sized in consideration of the proper discharge of the gas generated when the bullet is fired One bullet 200 has a diameter corresponding to the rear side. That is, since the bullet 200 according to the present invention has a smaller size than a bullet having a conventional casing, in order to trigger the bullet 200 and to smoothly discharge the gas generated therefrom, the ball bundle according to the present invention ( The hole formed at the end of the ball 300 also has a smaller size than the hole formed at the end of the ball bundle 150 of the conventional rifle. The end of the ball bundle 300 according to the present invention has a jaw (to fit the diameter of the bullet 200). 315 and has a smaller hole than the conventional ball gasket (150). This is because in the case of the present invention, the use of a conventional ball pile decreases the degree of compression of the compressed air generated by the casing. Therefore, in order to increase the degree of compression of the compressed air generated when the bullet 200 is triggered and to increase the reaction force on the bullet 200, a hole smaller than a conventional hole is formed at the end of the precinct hardball, and the bullet 200 In order to efficiently support the propellant ejected from the injection hole 250, a circular jaw 315 is formed. Also, unlike a conventional bullet, a bullet 200 having a propellant 240 and a propellant 230 is provided. ) Has a propellant 240 and a propellant 230 which can be fired and accelerated on their own, rather than being fired depending only on the reaction force by the compressed air. Accordingly, the bullet-free bullet 200 does not require a large reaction force by the casing as compared to the conventional bullet. In addition, in consideration of this point, as illustrated in FIG. 7B, the ball bundle 300 according to the present invention is provided. In the body of the high-temperature, high-pressure gas is discharged and the heat dissipation hole 310 for heat dissipation of the ball gasket 300 is formed, as shown in FIG. 9, the rifle 350 according to the present invention is an anti-base 355 from the body And a gas outlet 380 to face).

8A is a perspective view of a ball of a conventional rifle, and FIG. 8B is a perspective view of a ball of a rifle using the bullet of FIG. 2.

8A and 8B, in the conventional semi-automatic rifle, the ball 160 that triggers the primer by hitting the back of the bullet has a form in which its end is gradually narrowed to precisely hit the primer at the center of the casing. Since the ball 320 of the semi-automatic rifle according to the present invention is enough to hit the rear of the bullet core 220 itself, the ball 320 has a relatively wide diameter end, such as a size corresponding to the rear surface of the bullet core 220. In addition, in the conventional case, since the casing dissipates the heat generated during the firing of the bullet, the tip of the ball 160 may be thin, but in the present invention, as shown in FIGS. 7A and 7B, the ball bundle 300 is provided. Since the hot gas is directly discharged, the ball 320 is also formed to have a sufficient thickness to withstand the high temperature.

9 is a partial perspective side view of the rifle using the bullet of FIG. In the present embodiment, except for the gas outlet 380, the ball gasket 385, the bullet 425 and the magazine 410, the remaining components are the same as the conventional semi-automatic rifle, such as the M16, detailed illustration thereof Omit.

Referring to FIG. 9, the rifle 350 according to another embodiment of the present invention has a barrel 360 equipped with an anti-base 355 at one end and a bayonet flower 365 mounted on one side of the barrel 360. To protect the barrel 360, a barrel cover 370 covering most of the barrel 360, a ball bundle 385 connected to the barrel 360, and a ball 390 formed at one end of the ball bundle 385. When the ball 390 triggers ammunition to trigger the ammunition (400) and the trigger 405, the magazine 410 from the loading handle (395), the bullet 425 to load the bullet into the chamber in the chamber Shock absorber 415 having a spring to mitigate the impact, the rifle 350 is composed of a collimator 375 and a butt 420 that can also be used as a handle when carrying.

The anti-base 355 performs soundproofing and rust prevention function when the bullet 425 is triggered through the barrel 360, and supports the bayonet (not shown) to the bayonet flower 365 of the rifle 350. It also plays a role. The barrel cover 370 protects the user from the hot barrel 360 which is heated at the time of the explosion and a plurality of heat dissipation holes are formed to dissipate the heat of the barrel 360. About 80 bullets 425 are accommodated in the magazine 410 having a disc shape to accommodate more bullets 425.

The stack of bolts 385 may move forward or backward to cushion the bullet 425 when it is fired and to rotate the bolts (not shown). The rifle has a jaw formed to be coupled to the chamber, and the rifle of the conventional rifle has a structure capable of extracting casings, but the rifle according to the present invention does not need to have a structure for extracting a separate casing. The loading handle 395 may retract the bolt for loading of the bullet 425 and may be locked after the bolt is retracted.

In the present invention, the gas outlet 380 for discharging the gas generated when the bullet 425 is triggered is formed from the lower portion of the gasket 385, and then bent horizontally to protect the user from the hot gas. And extends forward toward the barrel 360 direction.

As described above, according to the present invention, since it is not provided with a casing, the cost of administering the casing can be reduced, thereby significantly reducing the manufacturing cost of the entire bullet, and the number of bullets that an individual can carry. Can be increased significantly. Also, since there are no shells scattered during rifle firing, it is possible to reduce the effort to recover the shell shells after shooting, and to eliminate the traces of allies due to the scattering of shells in wartime. This may be especially effective when agents who are undercover, such as searchers or infiltrators, work in enemy positions.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art may variously modify the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. And can be changed.

Claims (7)

In bullets for automatic or semi-automatic rifle, A bullet core comprising a streamlined warhead and a cylindrical body integrally formed with the warhead; A casing formed on an outer surface of the bullet core; A propellant filled inside the warhead at the rear of the warhead; A propellant charged adjacent to said propellant; An injection hole formed adjacent to the propellant; And Bulletless bullet, characterized in that it comprises a trigger primer that is mounted so that one side is exposed on the rear of the bullet core. The bullet-free bullet according to claim 1, wherein the rear surface of the bullet core has a double cylindrical structure. The bullet-free bullet according to claim 2, wherein the rear surface of the bullet core has a cylindrical end portion which is gradually narrowed about an axis of the bullet inside the cylindrical body. 4. The casing-free bullet of claim 3, wherein the trigger primer is mounted at a cylindrical end of the bullet core. The bullet-free bullet according to claim 3, wherein a curved portion is formed around the injection hole on the outer circumferential surface of the bullet core. The bullet-free bullet according to claim 1, wherein moisture proof means is formed in the periphery of the trigger primer. The bullet-proof bullet according to claim 6, wherein the moisture proof means is composed of a thin paper film coated with a desiccant.