JPS5818100A - Feeding of charge for shotgun - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the feeding of shotgun bullets used in hunting rifles, etc., and its purpose is to improve the feeding structure built in the shotgun cartridges, and to improve the feed structure by using explosive gas pressure of gunpowder. Rotation is caused in the feed, and if the bullet is a shot, it is fired by making a circular motion around the axis of the gun cavity, and - in the case of a slug of a live bullet, the bullet is given a torque while passing through the gun cavity. The ζ7 is designed to effectively reduce the sudden increase in explosive pressure when the gunpowder is ignited, thereby improving the accuracy of the bullet and reducing the slope of the recoil.

A further object of the present invention is to provide a hawker having the above-mentioned functions.

Gunpowder, feed, and shotgun are sequentially loaded into a cartridge equipped with a detonator, and when the shotgun shotgun bullets that have been subjected to a first rounding pass through the barrel circle, each shotlet is given a circular motion around the barrel axis. When fired, each shotgun generates a circular motion, and after leaving the muzzle, the inertia generated by the circular motion forces each shotgun to spread outward and fly, compared to normal bullets. Suitable for close-range shooting with an extremely wide bullet [111 squares].

Also, if you load a single live bullet slug instead of the enemy bullet in the above-mentioned ammunition, and the slug is given torque and rotates while passing through the gun cavity, it is possible to use a shotgun without rifling. Even when ejected, the flight attitude is stabilized by the gyro effect □, so it is possible to land a slug bullet with high accuracy.

Furthermore, by attaching a buffer that expands the volume of the gunpowder chamber in the initial stage of the explosive explosion, the sudden rise in explosive pressure can be alleviated.
The present invention provides a shotgun cartridge feeder that achieves the above-mentioned functions by reducing the recoil that makes the shooter feel uncomfortable. Examples thereof will be described below with reference to the drawings. Allll! Figures iI to 6 show the feed of the present invention used for shotguns. The feed according to the present invention is composed of two members, the bullet receiver 9 and the seal washer l, which are made of a synthetic resin material such as polyethylene. The bullet receiver 9 is integrally formed with blades W that are branched at equal angles in the face of the bullet receiver.
The blade W is provided with a protrusion su for forming a gas vent space between the circular surface of the gun cavity and the outer peripheral surface of the bullet receiver 90). The bullet holder is provided with a flange 8 protruding from its center in the axial direction perpendicular to the plane on the rear side of the opposite surface, and an annular grip concentric with the flange 8 and a center of the plunger 8. A jet diaphragm 1 that opens at the outer periphery of the bullet receiver 9 at an eccentric target position and starting from the position of the loam-like mouth.
4 is provided, and the ejection throttle groove 14 communicates with the annular grip U through a cancer groove n.

On the other hand, the sealwaz 1 has a hole 5 formed in its center at a position that corresponds to and communicates with a hole 6t1 for press-fitting the plunger 8 in a slidable manner. In addition, the shield 1 forms an EIIIB on the part facing the gunpowder, and has a horizontal center 1 that makes light (sliding contact) with the inside diameter of the cartridge and the inside diameter of the gun cavity, which is approximately the same diameter.
112 is provided, and 07, which is structurally designed to seal the explosive gas, is a membrane, and is an extremely thin membrane that is integrated with the seal 1 on the mouthpiece facing the gunpowder in the vent 5, so that the gunpowder does not enter the vent. It is blocked to prevent it from falling into the vent hole 5, but it is cleared by the explosion of the gunpowder ◎If the particle size of the gunpowder is larger than the vent hole 5, it is unnecessary ◎Also, as a courtesy change,
1517th! F to Iris A connecting groove and a jet aperture shown in 3■ are provided on the front end m4 of the seal was 1 to communicate the dark haze brocade with the ventilation hole 5, and the rear end of the bullet receiver 9 is 1 tin.
In addition, as shown in Figure IIg and rattan inlet, a further example is one in which a jet diaphragm U is connected directly to the vent hole 5 of the shield L, and in this case as well, the bullet holder is The rear end 1IIu of the 9 is flat. In the above two SM examples, the fla, the spring 8 is used to transmit the torque generated in the shield 1 to the bullet receiver 9.
It is necessary to make the cross-sectional shape of the plunger into a shape other than a circle, such as a polygon, as shown in the plunger terminal diagram of Uiua II.

As shown in Figure 11!1, press-fit this seal washer 1 into the tip 4 of the 1 lange 8 through the hole 6, and place the facing gap 8 between the front end surface 4 of the seal washer 1 and the rear end face of the bullet holder 90. 〇 Next, Iris 7 and Rattan 8 will be explained. This is a customary embodiment of the present invention in which a slug is used as a bullet.The essence of the configuration is the same as in the case where a shot bullet is used as described above.The difference is that the plunger 8 is placed at the center of the front end surface 4 of the seal was A hole into which the tip of the plunger 8 is press-fitted is provided in the center of the bullet receiver 9, and a plurality of protrusions 16 are provided protruding from the bullet receiving side of the bullet receiver 9. , the outer surface of this protrusion 16 is a protrusion SU for forming a gas venting gap between the outer surface of the bullet holder 9 on the inner surface of the gun cavity, and the hollow part intestine,
The protrusion 16 is attached to the base S of the slug 17 formed in the cylindrical portion.
It has a structure with a concave sm that fits with the bullet. When the shotgun is used as a bullet, the detonator and gunpowder are placed in the cartridge circle with the gunpowder in the a section in the assembled state shown in Figure 1, so that Sealwaz 1 faces the gunpowder, and the new When the slug 17 is used as a bullet, it is stored in the prefectural chamber in the assembled state shown in Figure 7, and the warhead is placed in the mouth 1.
11, and the loading is completed.O Explaining the feeding effect according to the above invention.@In the case of scatter loading, when the gunpowder explodes, the seal was 1, which receives the initial blast pressure, is connected to the plunger 8, the bullet receiver 9, and the charger. The bullet receiver 9 will be released through the shotgun that is in the aS position, but the bullet receiver 9 will not move because the bullet ejection resistance of the bullet is greater than the initial blast pressure. Therefore, only the seal l moves forward by a distance S from the rear end of the bullet receiver 9 while eliminating the press-fit sliding resistance generated between the hole 6 and the plunger 8, as shown in Figure 6. Front end surface 4 is bullet receiver 9
It came to be crimped to the rear end of the area. Therefore, the volume of the powder chamber for the cartridge increases by the amount of movement of the seal waz l, absorbing and mitigating the sudden rise in blast pressure and greatly reducing unpleasant recoil for the shooter. Then, the muzzle of the cartridge is unraveled, and the shotgun and the integrally connected bullet receiver 9 and seal was 1 fly out of the cartridge and enter the gun cavity.
The front end surface 4 of the seal was l is located behind the bullet receiver 9.
The annular groove n, the communication groove 4 and the ejection throttle groove 14 are in close contact with the IIi12 to maintain airtightness.
The bottom membrane 7 stretched over the vent hole 5 of Seal Was 1 is crushed under explosive pressure, and a portion of the gunpowder gas is injected from the vent hole 5 into the attenuated groove mouth and ejected. Squeezed fermentation 14
She is ejaculated from. In other words, award #113 and contact $22 are:
This is a passage groove for communicating the vent hole 5 and the jet throttle passage 14, and is unnecessary in the embodiment shown in FIGS. 9 and 10. After being ejected, the exhaust gas passes through the junction between the circumference of the bullet receiver 9 and the circular surface of the gun cavity, passes through the gap between the threshold of each enemy bullet, is discharged into the gun cavity, and is ejected from the muzzle. This high-temperature, ^-pressure explosive gas released into the atmosphere is injected from the ejection orifice ll4. Thrust forces TI and Te2 are generated at the starting point of the ejection orifice wIIM as shown in ll3- as a reaction force for insulation # production. death,
Moreover, since the Wi @ thrust force n% is facing in the opposite direction, torque is generated and the bullet burning 9 is turned once. In the two design change embodiments already mentioned, the feeding action is the same, but since the plunger 8 has a cross-sectional shape other than Tomoe, when the plunger 8 is press-fitted into the seal was 10 hole 6. , the large 6 is deformed to follow the cross-sectional shape of the 1 langier 8, so the hole 6 and the plunger 8 do not slip and rotate with respect to each other, and the torque generated in the seal wad 1 is transmitted through the plunger 8 to securely receive the bullet. It can spread to Fj9. The rotational speed of each shot increases rapidly while passing through the gun cavity. Therefore, by one rotation of the blade W integrated with the bullet receiver 9, each shot makes a circular motion centered on the axis of the gun cavity, and is ejected from the muzzle. It will be sprayed later.

On the other hand, in the case of slug loading, the plunger 8 moves forward through the hole J of the bullet holder 9 while eliminating the press-fit sliding resistance by the forward movement of the seal was 1, centers it in the hollow part 18 of the slug bullet, The action of compressing the air in the circle alleviates the sudden rise in explosive pressure, and the front end surface 4 of the seal was used as a bullet receiver 9.
A gas passage similar to that described above is formed by closely contacting the rear port surface of the cylinder to generate torque. In this case, the exhaust gas ejected from the ejection throttle groove 14 is around the circumference of the slag 17 g! The bullet is discharged into the gun cavity through the gap formed between the A crest and the inner surface of the gun cavity, and the rotation of the bullet receiver 9 is transmitted to the slug 17 by the engagement of the protrusion 16 and the concave s19 of the cylindrical part, and is ejected from the muzzle. slag 1
7 rotates and flies like a bullet fired from a rifling gun cavity.

As described above, the speed reduction according to the present invention has the following special effects.The seal was subjected to the explosive pressure of gunpowder is press-fitted with the plunger, or the bullet holder is press-fitted through the plunger. In addition to eliminating the sliding resistance caused by fitting and mitigating the rapid impact reaction at the initial stage of explosion due to the increase in the volume of the powder chamber, the shield is always ejected with the axis of the bullet holder 11kg aligned with the axis of the gun cavity. In addition, some of the explosive gas is used to impart rotation to the bullet holder, and this rotation is transmitted to the bullet. In the case of slug bullets, the slug is rotated in flight, both of which have the advantage of improving the hit N[.

In addition, we installed a gas passage to cause rotation in the bullet holder.
The rear end of the bullet receiver is provided with an annular structure and an ejection throttle groove that communicates with the annular structure, and the forward movement of the shield forms a tight contact to form a gas passage for a predetermined closed newspaper, so the shaping of this gas passage is extremely difficult. It is a ready-to-use product, can be mass-produced, and can be provided at low cost.

6. Furthermore, since the ventilation hole drilled in the seal was communicated with the annular structure of the bullet holder, the ventilation hole is always in communication with the annular structure over the entire range of 36°.
This has the advantage of eliminating the need for phasing positioning during assembly, and ensuring communication between the ventilation hole and reward #l whenever the seal was in close contact with the bullet holder.

[Brief explanation of the drawing]

W: A song shows an embodiment of the present invention, Fig. 1 is an 11th view of the assembly of the feeder used for shotgun loading, Fig. 2 is a bottom view of the same, and Fig. 3 is a bullet composing a part of the feeder. End view of the receiver, Part 4 is the Seal Was that makes up the other parts of the feed *1iy5!
A, Figure 5 is a bottom view of the same, Figure lEa is a sectional view of the second gardener-A' after the seal was activated, Figure @7 is a diagram of the feeding and slug assembly equipment used for slug loading, and Figure aS is the same. 1ao
− is. Figure 119 is a Confucian drawing of Sealwaz showing an example of a design change, gioa is an inner bottom Ii view, and Figure U is a terminal view of 1 run gear in an example of a design change. Ventilation hole, 6°... hole, 8
...Plunger, -9...Bullet receiver, IQ m -
a wing 11% u --- Convex part, 13 --- Annular groove, 1
4--・Spout m groove, 16e...Protrusion, 17...-Slug, bulge...Concavity, 2D1111・Hole. Figure 1 Figure 11 -485-

Claims (1)

[Claims] Load the feeder onto the gunpowder #A8 charged in the cartridge, and
In a shotgun cartridge in which a bullet is filled on the feed, the feed is divided into two members, a disc-shaped seal was and a bullet receiver, each having a smaller diameter than the inner diameter of the gun cavity, and has a gunpowder gas rail portion. The seal was has a center on its radius line, has a ventilation hole parallel to the axis and penetrates, and has an end face of the seal was that faces the bullet receiver, or more preferably, an end face of the bullet receiver that faces the seal was. One end face is provided with a plunger in the center in the axial direction, and the opposite end face is also provided with a hole in one direction of the wheel for inserting this one plunger, and a 7-leaf or 7-leaf hole is provided in the opposite end face. In addition to having a starting point on the radius line of the end surface and opening on the outer periphery, a plurality of ejection restricting passages are bored in either one of the m ridges of 1a of the bullet receiver, which can communicate with the above-mentioned ventilation holes. At the same time, the side of the bullet receiver that contacts the bullet is provided with a means for transmitting rotation to the bullet and a protrusion for forming a uniform gas venting gap between the inner surface of the gun cavity and the outer periphery of the bullet receiver. and a plunger press-fitted between the respective end faces of the side facing the seal was and the bullet holder, with a required distance of i1!1. Send.