JP2003130598A - Non-lethal wads and non-lethal ammunition - Google Patents

Abstract

(57) [Summary] PROBLEM TO BE SOLVED: To obtain a wad for separating a non-lethal bullet from a propellant, which does not harm the human body even when fired, and a non-lethal ammunition using the same. SOLUTION: A material having a wad and airtight partition means of a uniform material having a bulk specific gravity of 0.6 or less, an airtight wad made of a material having a bulk specific gravity of 0.6 or less, or a bulk specific gravity relating to a maximum outer shape. A shot cup of 0.2 or less, or an airtight wad that flies separately, and an ammunition using any of these.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-killing bullet as a non-killing bullet for firing a non-killing bullet that does not kill a human body, a living body or the like even if fired, a so-called "rubber bullet". The present invention relates to a wad as a whole of a filling material interposed between a propellant and a non-lethal ammunition using the wad.

[0002]

Non-lethal bullets are used to suppress mobs. Non-lethal bullets are used not only to intimidate mobs, but also to ward off pests and other animals that have appeared in remote areas. Non-lethal bullets are fired from non-lethal shells.
Non-killing bullets consist of non-killing bullets such as rubber bullets, propellants, detonators, cartridges, and wads that intervene between non-killing bullets and propellants to separate them. The wads for partitioning the non-killing bullet and the propellant are made of polyethylene resin molding, polypropylene resin molding, hard cardboard molding, or the like.
Most of these wads are diverted from conventional shot cups.

The shot cup is a wad which itself is interposed between the non-killing bullet and the propellant to separate them from each other, and is so called because of the shape of the cup. That is, the shot cup is composed of a portion of the cup that houses the bullet and a partition member that corresponds to the bottom of the cup and that hermetically isolates the bullet from the propellant. Also,
Many shot cups have a void structure between the cup portion and the partition member.

[0004]

When the conventional non-lethal bullet wads are fired at the human body or the like, they sometimes fly together with the non-lethal bullet and collide with the human body or the like at a considerable speed and mass. It is dangerous to hit the human body, especially if it is launched from a very short distance. It is an object of the present invention to provide, as wads used for non-killing ammunition, non-killing wads that fly less to cause harm to a human body and the like when fired, and non-killing ammunition using the same.

[0005]

In order to solve the above-mentioned problems, the present inventor has conducted earnest research on the composition of non-killing wads and non-killing ammunition, and as a result, the material, specific gravity, structure, etc. of the material are determined as non-killing wads. The present invention has been accomplished by finding that the above object can be achieved by optimizing.

That is, the aspects of the present invention are as follows. (1) As a wad for non-killing bullets, it is a padding that is interposed between the non-killing bullet and the propellant and has a layer made of a uniform material having a bulk specific gravity of 0.6 or less, and an airtight partitioning means. Non-lethal wads characterized by: (2) As a wadding for non-lethal bullets, it is a padding that is interposed between the non-lethal bullet and the propellant, and the non-lethal bullet and the propellant are airtightly divided and made of a material having a bulk specific gravity of 0.6 or less. Non-killing wads characterized by. (3) The non-killing wad described in (2) above, which is formed into a shape of a cup for containing a non-killing bullet. (4) A non-killing bullet wad, which is a padding interposed between the non-killing bullet and the propellant, has a cup portion for containing the non-killing bullet, and has a mass represented by a maximum outer diameter and a maximum length. Non-killing wads having a bulk specific gravity of 0.2 or less divided by the cylindrical volume. (5) As a wad for non-killing ammunition, it is a padding interposed between the non-killing bullet and the propellant, and is composed of at least two parts, and the parts are separated so that they can fly individually. Non-killing wads.

(6) The above (1) to (1) made of combustible material
The non-killing wads described in any of (5). (7) The non-killing wads according to any one of (1) to (6) above, which is made of a biodegradable material. (8) The non-killing wads according to any of (1) to (7) above, wherein the total mass is 1 to 4 g. (9) A non-killing ammunition comprising the non-killing wads and non-killing bullets, a propellant, a detonator, and a cartridge according to any one of the above (1) to (8). (10) The non-killing bullet as described in (9) above, which is loaded with a plurality of non-killing bullets.

The present invention will be described in more detail below. One embodiment of the non-killing wads of the present invention is the non-killing wads, which comprises a layer made of a uniform material having a bulk specific gravity of 0.6 or less and an airtight partitioning means.
(Aspect of (1)) The bulk specific gravity of the layer made of this uniform material is 0.05 to
It is preferably 0.5, more preferably 0.1 to 0.4, still more preferably 0.15 to 0.3.

It is a preferred embodiment to use a breathable material as the layer of this uniform material on the non-killing bullet side and an airtight partitioning means on the propellant side. The ventilation material has a large resistance when it is fired and flies, and it is difficult to fly at high speed because it forcibly absorbs a large amount of head wind and has a reverse ejection force. Examples of such a ventilation material include felt, nonwoven fabric, and cotton balls. The bulk density is 0.
Felts of 15 to 0.3 are preferably used. Felt and non-woven fabric are less likely to be injured even if they collide with a human body or the like.

On the other hand, in the case of using polyethylene resin or the like, which is a uniform material having a specific gravity of about 1.0, it is formed as a structure having voids having a bulk specific gravity of 0.4 or less. However, unless the specific gravity of the mass with respect to the maximum outer shape is made small as described below, or when flying, the mass may often have a large momentum unless the flying is performed by separating into several parts.

The airtight partition means is, for example, a foamed polyethylene sheet, a light cardboard, a metal foil or the like. The specific gravity of the airtight partitioning means is preferably 0.1 to 1.0, and more preferably 0.2 to 0.6 unless it is a metal foil. When the specific gravity of the airtight partitioning means exceeds 0.6, the bulk volume thereof is preferably 20% or less, more preferably 15% or less, of the bulk volume of the non-killing wads. % Or less is more preferable. For this reason, a foamed polyethylene sheet having a specific gravity of 0.2 to 0.6 is preferably used. The foamed polyethylene sheet is less likely to be injured even if it collides with a human body or the like.

Yet another aspect of the non-killing wads of the present invention is:
The non-lethal bullet and the propellant are airtightly divided, and the bulk density is 0.
Non-killing wads characterized by being made of a material of 6 or less. (Aspect of (2)) A polyethylene molded product or the like is used for the conventional shot cup. The specific gravity of resins such as polyethylene and polypropylene is about 0.9 to 1.2. Since the non-killing wads of the present invention are made of only a material having a bulk specific gravity of 0.6 or less, a large momentum is rarely obtained even if the buds are shot and fly. A light material such as expanded polyethylene or expanded polystyrene is preferably used as the material. The bulk specific gravity is more preferably 0.05 to 0.5, further preferably 0.1 to 0.4, and 0.1
It is more preferably 5 to 0.3.

It is a preferred embodiment of the present invention to use these materials to form a cup for containing non-killing bullets. (Aspect of (3) above) As for the shot cup, the higher the flying speed after the shot is,
Since a large amount of air is sucked into the cup and the pressure becomes high, and it has a reverse jetting force, it has a structure that makes it difficult to fly at high speed.

Yet another aspect of the non-killing wads of the present invention is:
Non-killing wads, characterized in that it has a portion of a cup for containing non-killing bullets and has a bulk specific gravity of 0.2 or less obtained by dividing the mass by the cylindrical volume represented by the maximum outer diameter and the maximum length. (Aspect of (4)) Even if the material is a material such as polyethylene resin or polypropylene resin having a specific gravity close to 1.0, it has a cup portion and the ratio of the mass to the maximum outer shape, that is, the mass The specific gravity divided by the cylindrical volume represented by the maximum outer diameter and the maximum length is 0.
If it is 2 or less, it is non-lethal wads. Thus, the specific gravity including the void structure is important,
5 is more preferable, and 0.07 to 0.12.

Another aspect of the non-killing wads of the present invention is the non-killing wads, characterized in that it comprises at least two parts, which parts are individually flyable. (Aspect of (5)) The non-killing wads of the present invention are more preferably separated into at least three parts, and further preferably separated into at least four parts. This is because, when the separated parts individually fly, the mass of each is small, and even if they fly, the human body and the like are less likely to be harmed. The layered separation transverse to the firing direction is easy to manufacture. As long as the non-lethal bullet and the propellant are hermetically separated from each other, there may be a part that is longitudinally separated from the firing direction.

The non-killing wads of the present invention are preferably made of a flammable material and / or a biodegradable material. (Aspects of (6) and (7)) Felt, many non-woven fabrics, foamed polyethylene and the like are combustible materials. Biodegradable materials include bio-polyester, poly-3-hydroxybutyrate, curdlan, pullulan, bacterial cellulose, resinous substances made by microorganisms such as polyamino acids, starch, chitin chitosan, marine polysaccharides, natural celluloses and the like. There are chemically resinous substances such as polymer resinous substances, polylactic acid, polyglycolic acid, polycaprolactone, aliphatic polyester, polyurethane, polyamide resins, polyvinyl alcohol, and polyether.

The non-killing wads of the present invention are also preferably used when a plurality of non-killing bullets are fired like a shot. For example, when firing with a hunting shotgun, it is practical for the non-killing wads to have a total mass of 1 to 4 g. (Aspect of (8)) In this case, the amount is more preferably 1.5 to 3.5 g.
The non-killing bullet of the present invention is the non-killing bullet comprising the non-killing wads of the present invention, the non-killing bullet, the propellant, the detonator, and the cartridge case. (Aspect of (9) above) The non-killing bullet may be loaded together with the powdered filler.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the drawings, but the technical scope of the present invention is not limited to these specific examples. FIG. 1 is an example of a non-lethal bullet using the non-lethal wads of the present invention, in which the left half represents the outer shape and the right half represents the midsection. The ventilation member 1 and the partition means 2 form the non-killing wads of the present invention.

In FIG. 1, the cartridge case 3 has a head 4. The case 3 has a length of 70 mm, and the head 4 has a length of 16 mm. A non-killing bullet 5 is loaded with a filler 6 made of polyethylene powder and the tip is closed by a star crimp 7. Non-lethal bullet 5 has a diameter of 8
mm rubber bullets, loaded with four. A propellant charge 8 is loaded inside the head 4, and a detonator 10 is fixed together with the base wads 9. The propellant 8 is a hunting propellant (manufactured by Asahi Kasei Corporation). The base wads 9 are a type of wads, but do not intervene between the non-killing bullets 5 and the firing approximately 8 as the non-killing wads of the present invention.

As the non-killing wads of the present invention, there are used wads made of a ventilation material 1 made of felt having a bulk specific gravity of 0.25 and an airtight partitioning means 2 made of a foamed polyethylene sheet. The diameter of the ventilation material 1 and the partition means 2 is about 1
It is 9 mm. The felt is divided into three separable layers, each layer having a thickness of 10 mm. The polyethylene sheet as the partitioning means 2 has a bulk specific gravity of 0.4 and a thickness of 2.
It is 2 mm. A firing experiment was conducted using this non-lethal bullet.

The dose is 1.10 g, 1.33 g, 1.54
When fired as g, the initial velocity of the rubber bullet was 155 m / s, 260 m / s and 328 m / s, respectively. The ventilating material 1 and the partition means 2 which form the non-killing wads of the present invention.
Was confirmed to fly only a few meters and not to harm the human body. In particular, the felt which is the ventilation member 1 flies by separating three layers, and the expanded polyethylene sheet which is the airtight partitioning means 2 also flies independently. As a result, each of the separated flying bodies has a small individual mass, It was confirmed that there is no harm to the etc.

[0022]

INDUSTRIAL APPLICABILITY The present invention is a wad for partitioning a non-killing bullet and a propellant, which does not harm the human body even when fired, and a non-killing ammunition using the same. is there.

[Brief description of drawings]

FIG. 1 is an example of a non-killing bullet using the non-killing wads of the present invention, where the left half represents the outer shape and the right half represents the midline cross section. The ventilation member 1 and the partition means 2 form the non-killing wads of the present invention.

[Explanation of symbols]

1 ventilation material 2 partition means 3 shell case 4 heads 5 non-lethal bullets 6 filler 7 Star Crimp 8 propellant 9 base wads 10 detonator

Claims (10)

[Claims] 1. A padding which is interposed between a non-killing bullet and a propellant as a non-killing ammunition wad, and has a bulk specific gravity of 0.
Non-killing wads, characterized by comprising a layer of 6 or less of uniform material and an airtight partitioning means. 2. A padding which is interposed between a non-killing bullet and a propellant as wads of the non-killing bullet, and which non-killing bullet and the propellant are airtightly separated from each other and has a bulk specific gravity of 0.6 or less. Non-lethal wads characterized by becoming. 3. Non-killing wads according to claim 2, characterized in that it is molded in the shape of a cup for containing non-killing bullets. 4. A padding which is interposed between a non-killing bullet and a propellant as a non-killing bullet wad, and which has a cup portion for containing the non-killing bullet and has a mass with a maximum outer diameter and a maximum length. Non-killing wads, characterized in that the bulk specific gravity divided by the represented cylinder volume is 0.2 or less. 5. A padding that is interposed between a non-killing bullet and a propellant as a non-killing ammunition wads, comprising at least two parts, the parts being individually flyable. Characteristic non-killing wads. 6. The non-killing wads according to claim 1, which is made of a combustible material. 7. The non-killing wads according to claim 1, which is made of a biodegradable material. 8. The non-killing wads according to claim 1, wherein the total mass is 1 to 4 g. 9. A non-killing ammunition comprising the non-killing wads according to claim 1, a non-killing bullet, a propellant, a detonator, and a cartridge case. 10. The non-lethal bullet according to claim 9, which is loaded with a plurality of non-lethal bullets.