JP5875800B2 - Ammunition container - Google Patents

Description

  The present invention relates to a cylindrical ammunition container that is used, for example, as a packing container for a shooting gun for a cannon or a gun.

  An ammunition container used for an ammunition cannon is used to pack a plurality of projectiles loaded with fine granular projectiles for temporary transportation when transported or stored in an ammunition depot. It is a metal container to be used. The ammunition container is removed when the propellant is inserted into a chamber such as an howitzer. On the other hand, ammunition containers in the field of artillery ammunition are used for exteriors such as missiles and are also called motor cases. A missile is a unit in which a liner is affixed to the inner surface of an ammunition container and a propellant is cast inside it, and is stored in a storage container called a canister and mounted on a submarine, etc. It is. Therefore, the ammunition container used as the packing container is stored in a state where it is integrated with the propellant until the missile is launched. In general, an ammunition container as a packing container used for a shooting charge for an ammunition or an ammunition for an artillery has a structure having a drop strength and an airtightness of a certain level or more in consideration of operational aspects (for example, Patent Document 1).

  In recent years, gunpowder ammunition and artillery ammunition have been required to have good handling at the time of storage and operation because of overseas dispatch activities based on peace-contributing activities. As a method for evaluating the handling of artillery ammunition and gunpowder, test methods have been standardized by ITOP (International Test Operations Procedure) and STANAG (Standardization Agreement, NATO standard) in the United States. In these standards, drop tests, cook-off tests, detonation tests, and fire sensitivity tests are defined as test items for evaluating operational handling. In order to satisfy such regulations, a solid drop strength and high airtightness are required for ammunition containers for ammunition and gun ammunition.

JP 2004-226031 A

  However, in conventional ammunition containers, if the explosives composing the ammunition or the propellant charged inside the container ignite, the combustion reaction of the explosives occurs in the highly airtight ammunition container. The container itself will explode like ammunition, causing serious damage and loss to surrounding personnel and equipment.

  Therefore, the present invention solves the above-mentioned problems, and while maintaining the drop strength and airtightness in normal times, the explosive of the container can be avoided in an emergency when the explosives ignite inside the container, and the surrounding damage is prevented. An object is to provide a container for ammunition that can be suppressed.

  As a means for that, the present invention is an ammunition container having a bottomed cylindrical container main body and a lid that closes the opening of the container main body, and the cylindrical portion of the container main body has a spiral metal plate Is formed in a cylindrical shape having a joint portion that extends in a spiral shape. A long hole extending in the axial direction is formed in the cylindrical portion so as to penetrate inside and outside, and the long hole is sealed with a sealing material. In addition, the long holes and the outer surfaces of the sealing material are covered with a metallic cover member. The sealing material may be sealed from either the inner surface or the outer surface of the long hole.

  According to this, since the opening of the container body is closed with the lid while the container body is made of metal, it has the original drop strength and airtightness as in the conventional case. In addition, by providing a long hole extending in the axial direction, if explosives ignite inside the container, the combustion gas and the like can be discharged from the long hole to the outside of the container. The increase in internal pressure can be mitigated. Therefore, it is possible to prevent damage to the surroundings by avoiding the explosion of the container. Since the long hole is normally sealed with a sealing material, the airtightness at the normal time is maintained. On the other hand, in the event of an emergency when the explosives in the container ignite, the sealing material is torn or peeled off as the internal pressure of the container increases.

  Furthermore, since the long hole and the sealing material are covered with the metal cover member, the drop strength of the ammunition container can be ensured without a problem of strength reduction due to the provision of the long hole. That is, simply providing a long hole for avoiding an explosion in the cylindrical portion of the container main body reduces the strength of the long hole portion, and there is a problem that it is easily deformed when a drop impact is applied thereto. Even if a sealing material is provided, sufficient strength cannot be ensured with only a member for sealing. Therefore, sufficient drop strength can be ensured by covering the long hole and the sealing material with a metal cover member.

  The cover member is preferably provided with a plurality of vent holes in the form of internal and external penetrations. Accordingly, combustion gas and the like when the explosives are ignited inside the container can be surely discharged to the outside, and it is advantageous for reducing the weight of the ammunition container.

  Moreover, it is preferable that the sealing material or the long hole and the cover member are separated from each other. Specifically, when the sealing material is arranged on the outer surface of the long hole, the sealing material and the cover member are separated from each other, and when the sealing material is arranged on the inner surface of the long hole, the long hole and the cover member are separated from each other. . Thereby, in an emergency when explosives are ignited inside the container, the sealing material can be surely torn or peeled off and the combustion gas can be discharged.

  According to the ammunition container of the present invention, it is possible to avoid the explosion of the container in an emergency when the explosives are ignited inside the container and to suppress the surrounding damage while maintaining the drop strength and airtightness in the normal state. .

It is a perspective view of the container for ammunition. It is a disassembled perspective view of the container for ammunition. It is sectional drawing of the container for ammunition.

  Hereinafter, representative embodiments of the present invention will be described. As shown in FIG. 1, the ammunition container of the present embodiment (hereinafter sometimes simply referred to as a container) includes a bottomed cylindrical container body 10 and a lid 11 that closes the opening of the container body 10. And a plurality of ammunition (not shown) are arranged in series and loaded therein. As the ammunition (propellant), a single base propellant, a double base propellant, a triple base propellant, a multi-base propellant and the like are used. Reference numerals 12 and 13 are reinforcing rims provided so as to surround the outer surface of the container body 10 at the axial ends of the container body 10.

  The container body 10 is made of metal, and the cylindrical portion 10a is formed into a cylindrical shape by winding a long metal long plate in a spiral shape, but the edges of both sides are butted together and joined by seam welding or the like. Has been. Therefore, the cylindrical portion 10a of the container body 10 has a spiral joint portion 10b extending in the axial direction. The joint portion 10b extends spirally at an angle of about 20 to 40 ° with respect to the bottom surface of the container body 10. The material of the metal plate is not particularly limited, and all metals conventionally used in this type of ammunition container can be used. Among them, a steel plate having high rigidity is preferable.

  The lid 11 is cup-shaped, and the material is not particularly limited as long as the inside of the ammunition container can be sealed. For example, in addition to the metal similar to the container body 10, it is also possible to use plastic, fiber reinforced plastic, resin-impregnated paper, or rubber. The lid 11 is fitted into the opening of the container body 10 by press fitting or screwing.

  Both rims 12 and 13 are made of the same metal as the container body 10 and are welded to the outer surface of the container body 10. The outer peripheral surface shape of both rims 12 and 13 is circular, and the diameter is the same. When the ammunition container is placed on its side, both the rims 12 and 13 are in contact with the ground and serve as fulcrums, so that the container body 10 does not directly contact the ground, which is advantageous in preventing damage to the container body 10.

  As shown in FIG. 2, a long hole 10c extending in the axial direction is formed in the cylindrical portion 10a of the container body 10 so as to penetrate inside and outside. By having the long hole 10c, when the ammunition is ignited in the ammunition container, the combustion gas is discharged to the outside of the ammunition container through the long hole 10c, so that the increase in internal pressure can be suppressed. It can be avoided.

  The number of the long holes 10c may be one, but a plurality (for example, about 2 to 15) is preferably provided. What is necessary is just to set the length of the long hole 10c suitably according to the number of drilling. For example, when the number of the long holes 10c is relatively small (for example, about 1 to 3), the length is long, and when the number of the long holes 10c is relatively large (for example, four or more), the length is short. You can also. In addition, when a plurality of the long holes 10 c are formed, it is preferable to provide them at equal intervals in the circumferential direction of the container body 10. This is because the combustion gas can be efficiently discharged to the outside. The long hole 10c is basically linear, but can be formed in a curved shape or a spiral shape. Further, the long hole 10c may be provided in parallel with the axial direction (center axis) of the container body 10, or may be provided obliquely with a slight deviation from the axial direction (center axis) of the container body 10. In this embodiment, as shown in FIGS. 2 and 3, the slanted straight long hole 10 c extending over both axial ends of the container body 10 is slightly shifted from the axial direction (center axis) of the container body 10. And two are provided opposite to the cylindrical portion 10a.

  A plate-shaped sealing material 20 is joined to the outer peripheral surface of the cylindrical portion 10a so as to seal the long hole 10c from the outer surface. The sealing material 20 is larger than the opening area of the long hole 10c, and is joined to the container body 10 by bonding or welding at the outer peripheral portion of the long hole 10c. The sealing material 20 is made of a material whose strength is lower than that of the container body 10. This is because when the ammunition is ignited in the ammunition container, it must be preferentially damaged over other parts as the internal pressure increases. That is, the long hole 10c and the sealing material 20 can also be called a weak part. For example, with respect to the steel container body 10, the sealing material 20 is made of a soft metal such as aluminum or copper, or a synthetic resin such as polyethylene or polypropylene. The sealing material 20 may have a tape shape or a plate shape.

  In addition, the outer surfaces of all the long holes 10 c and the sealing material 20 are covered with metallic cover members 21, respectively. Thereby, the intensity | strength of the long hole 10c part at the normal time can be ensured. The cover member 21 is a long plate-like member and is welded to the outer surface of the container body 10. Further, the cover member 21 has a plurality of vent holes 21a that are penetrated inside and outside at equal intervals in the longitudinal direction. As a result, the combustion gas can be reliably discharged to the outside through the vent 21a in an emergency while maintaining the strength of the container body 10. As well shown in FIG. 3, the cover member 21 and the sealing material 20 are separated from each other by a predetermined interval. Thereby, the sealing material 20 is prone to be actively damaged in an emergency.

  Next, the operation of the ammunition container having the above configuration will be described. When handling ammunition containers or during temporary storage, if the ammunition in the ammunition container causes a combustion reaction due to impact or temperature rise, the pressure in the ammunition container is caused by the generated combustion gas. To rise. Then, due to the high pressure of the combustion gas, the sealing material 20 breaks preferentially over other parts, so that the long hole 10c is opened, and the combustion gas passes through the long hole 10c and the vent hole 21a of the cover member 21 to the outside. Released. Thereby, since the increase in the internal pressure of the ammunition container is suppressed, explosion of the ammunition container is avoided.

  The ammunition container of the present invention is inferior in performance (easy to break the sealing material 20) to the above embodiment, but the cover member 21 and the sealing material 20 or the long hole 10c are not necessarily separated from each other. No.

  Further, as long as the combustion gas can be discharged out of the ammunition container, it is not always necessary to provide the vent hole 21 a in the cover member 21. For example, the bonding force of the cover member 21 having no vent hole is relatively weakened by bonding or spot welding to the outer surface of the container body 10, and the cover member 21 is also damaged together with the sealing material 20 in an emergency. It can also be.

  The rims 12 and 13 are not necessarily required.

DESCRIPTION OF SYMBOLS 10 Container main body 10a Tube part 10b Joint part 10c Long hole 11 Lid | cover body 12 * 13 Rim 20 Sealing material 21 Cover member 21a Vent

Claims (2)

An ammunition container having a bottomed cylindrical container body and a lid for closing the opening of the container body,
Cylindrical portion of the container body is cylindrical having a helical joint,
A long hole extending in the axial direction is formed in the cylindrical portion so as to penetrate inside and outside,
The long hole is sealed with a sealing material,
The long holes and the outer surface of the sealing material are covered with a metallic cover member,
An ammunition container in which a plurality of vent holes are formed in the cover member so as to penetrate inside and outside. An ammunition container having a bottomed cylindrical container body and a lid for closing the opening of the container body,
Cylindrical portion of the container body is cylindrical having a helical joint,
A long hole extending in the axial direction is formed in the cylindrical portion so as to penetrate inside and outside,
The long hole is sealed with a sealing material,
The long holes and the outer surface of the sealing material are covered with a metallic cover member,
The ammunition container, wherein the sealing material or the long hole and the cover member are separated from each other.

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