JP2013104571A - Blank cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe blank cartridge wherein a gap between the blank cartridge and an artillery is surely sealed in a state where the blank cartridge loaded in the artillery is burned.SOLUTION: In the blank cartridge 1, a cylindrical burning container 60 opening at least at one end in the axial direction and a bottom member 10 attached to the one end of the burning container 60 are provided, wherein the bottom member 10 is provided with a communication hole 12 which communicates the outside of the burning container 60 with the inside thereof, the inside of the burning container 60 is loaded with propellant powder K3, the communication hole 12 is loaded with a percussion primer K1, and ignition charge K2 is loaded between the percussion primer K1 and the propellant powder K3 and then loaded in the artillery 100. On an outer circumferential surface in the bottom member 10 and a surface opposite to the inner circumferential surface of the artillery 100, an annular sealing member 80 is provided to seal the gap between the outer circumferential surface of the bottom member 10 and the inner circumferential surface of the artillery 100.

Description

  The present invention relates to an empty package that generates an impact sound or an impact sound and smoke and flame without firing an actual shell (actual package) in shooting training or a ceremony.

Conventionally, there is a case where an impact sound or an empty package that generates an impact sound and smoke and flame is used in shooting training, a ceremony, and the like, and various empty packages are disclosed.
For example, in the prior art described in Patent Document 1, a nozzle with a reduced diameter at the middle portion of the through hole is formed in the lid at the tip of the empty packaging container, and the nozzle is tightly covered so as to cover the nozzle from the inside. An empty cannonball (corresponding to an empty package) in which a cover plate is arranged is disclosed. By squeezing the diameter of the middle part of the nozzle, the injected combustion gas reaches the sonic speed at this squeezed part, and the combustion gas that has reached the sonic speed gains thrust to move the empty cannon (empty package) backward The empty cannon (empty package) can be automatically discharged from the loading section.
The prior art described in Patent Document 2 discloses an empty package in which the head of a combustion container loaded with a propellant is sealed with a metallic rupturable plate serving as a lid. The rupturable plate is provided with a groove for making it easily broken by the combustion gas, and the rupturable plate is maintained without being destroyed until the pressure inside the combustion container rises to a predetermined pressure after ignition of the empty package. As the pressure rises further, the rupture disc is destroyed and an impact sound is generated.

JP-A-7-190698 Japanese Patent No. 4740655

In order to use the empty package more safely, it is preferable that all the combustion gas generated when using the empty package loaded in the gun is discharged from the front of the gun.
However, in the prior art described in Patent Document 1 and Patent Document 2, in the state where an empty cannonball (empty package) is loaded in a gun chamber, the gap between the empty cannonball (empty package) and the chamber is set. There is no description about the sealing structure, and it is considered that combustion gas may leak from the rear of the gun.
The present invention was devised in view of the above points, and in a state where an empty package loaded on a gun is burned, the gap between the empty package and the gun is more reliably sealed, and a safer empty package is obtained. The issue is to provide.

In order to solve the above problems, the empty package according to the present invention takes the following means.
First, the first invention of the present invention has a combustion container which is a cylindrical container having at least one end opened in the axial direction, and a bottom member attached to the one end of the combustion container, The bottom member is formed with a communication hole that communicates the outside and the inside of the combustion container, the propellant is loaded inside the combustion container, the ignition hole is loaded into the communication hole, An igniting agent is loaded between the fire tube and the propellant, and an empty package is loaded on the gun.
An annular seal member for sealing a gap between the outer peripheral surface of the bottom member and the inner peripheral surface of the gun is provided on the outer peripheral surface of the bottom member and facing the inner peripheral surface of the gun. It has been.

According to the first aspect of the present invention, in the state where the empty package loaded in the gun is burned, the gap between the outer peripheral surface of the bottom member of the empty package and the inner peripheral surface of the gun is more reliably secured by the annular seal member. Can be sealed.
Thereby, since the combustion gas at the time of using an empty package can be prevented appropriately from leaking from the back of a gun, a safer empty package can be realized.

  Next, a second invention of the present invention is the empty package according to the first invention, wherein the seal member is an elastic member and is fitted into a seal groove formed on the outer peripheral surface of the bottom member. It is.

  According to the second aspect of the invention, since the sealing member can be properly positioned, the gap between the outer peripheral surface of the bottom member of the empty package and the inner peripheral surface of the gun can be more reliably sealed.

It is a perspective view explaining each member which constitutes empty packaging 1 of the present invention. It is sectional drawing explaining the state which assembled | attached the empty package. 2 is a cross-sectional view illustrating a state in which the empty package 1 is loaded in the chamber of the gun 100. FIG. It is sectional drawing explaining the state which loaded the empty package 1 in the chamber of the gun 100 (when the outer peripheral diameter of a sealing member is made smaller than the inner peripheral diameter of the gun barrel part 101).

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. 1 to 4, the X axis, the Y axis, and the Z axis indicate orthogonal coordinates, and the Z axis direction indicates the axial direction of the empty packet 1 and the gun 100 (the direction toward the Z axis is the muzzle direction). ing.

● [Each member constituting the empty package 1 (FIG. 1) and the assembled state of the empty package 1 (FIG. 2)]
FIG. 1 shows a perspective view of each member constituting the empty package 1, and FIG. 2 shows a cross-sectional view in a state where the empty package 1 is assembled.
As shown in FIGS. 1 and 2, the empty package 1 includes a fire tube K1, a bottom member 10, a seal member 80, an igniting agent K2, an igniting agent spacer 20, a support auxiliary member 30, a propellant K3, an anti-scattering member 40, An orifice closure 50 and an orifice 62 which is a through hole are constituted by a combustion container 60 formed in a lid portion 63, a loading guide 70, and the like.
Note that various materials such as iron, stainless steel, aluminum, and brass may be used as materials for the bottom member 10, the igniter spacer 20, the support auxiliary member 30, the scattering prevention member 40, the combustion container 60, and the loading guide 70. it can.

The bottom member 10 constitutes the bottom portion of the empty package 1, and has a screw portion 11 for fixing the combustion vessel 60, a hole for communicating the inside and outside of the fixed combustion vessel 60 and loading the fire tube K1. A communication hole 12 and a seal groove 13 into which the seal member 80 is fitted are formed. The seal groove 13 is an outer peripheral surface of the bottom member 10 and is formed on a surface facing the gun 100 as shown in FIG.
The fire tube K1 is an igniter loaded in the communication hole 12 of the bottom member 10, and ignites when an electric current flows, for example, and ignites the igniting agent K2.
The seal member 80 is an annular elastic member such as rubber, for example. The seal member 80 is fitted into the seal groove 13 and the gap between the gun 100 and the empty packet 1 when the empty packet loaded in the chamber of the gun 100 burns. To seal.
A screw portion 61 formed on one end side in the axial direction of the combustion container 60 is screwed into the screw portion 11.

The igniter spacer 20 holds the igniter K2 at the opening of the communication hole 12 of the bottom member 10 and supports the support auxiliary member 30. The igniter spacer 20 is formed of a punching metal in which a plurality of through holes 21 are formed or a metal net in which a plurality of through spaces are formed in order to propagate the combustion energy of the igniter K2 to the propellant K3. ing. The igniter spacer 20 may be omitted.
The igniting agent K2 is held at the opening of the communication hole 12 by the igniting agent spacer 20, is ignited by the fire tube K1, and ignites the propellant K3.
The support auxiliary member 30 is supported by the igniting agent spacer 20 and supports the scattering prevention member 40 so as to be held in the vicinity of the orifice 62 of the combustion container 60, and the propellant K <b> 3 is evenly arranged in the combustion container 60. A storage space is formed. Further, in order to propagate the combustion energy of the propellant K3 evenly into the combustion container 60, the support assisting member 30 is applied to a punching metal having a plurality of through holes 31 or a metal mesh having a plurality of through spaces. Is formed. Note that the support auxiliary member 30 may be omitted as long as the propellant K3 is tightly packed in the space from the igniter spacer 20 to the scattering prevention member 40.
Further, the supporting auxiliary member 30 may be omitted, and the scattering prevention member 40 may be press-fitted into the combustion container 60 to fix the position, or the scattering prevention member 40 may be brazed into the combustion container 60 and positioned. May be fixed.

The scattering prevention member 40 is supported by the support auxiliary member 30 and is disposed so as to be close to the inner surface of the lid portion 63 formed at the other end of the combustion container 60. Further, the scattering prevention member 40 guides the combustion gas of the propellant K3 to the orifice 62 of the combustion container 60, and also has a plurality of through holes 41 having a predetermined diameter for blocking the propellant K3 without passing unburned material or the like. Is formed of a punching metal formed with a metal mesh or a metal mesh formed with a plurality of through spaces. The predetermined diameter is set according to the type and shape of the propellant K3, and is, for example, about 4 [mm].
The scattering prevention member 40 may be omitted.
The propellant K3 is loaded in the space between the igniter spacer 20 and the scattering prevention member 40 in the combustion container 60, and ignited by the igniter K2, and generates the impact sound of the empty package 1 or the impact sound and smoke and flame. Let

The orifice closure 50 prevents moisture in the air from passing through the combustion container 60 during storage of the empty package 1 and prevents raindrops from entering the combustion container 60 during handling of the empty package 1 in the rain. The orifice 62 has a size covering the orifice 62 and is bonded or adhered so as to cover the orifice 62 to seal the orifice 62.
The orifice closure 50 is intended for sealing and does not increase the internal pressure in the combustion container 60 after ignition up to a predetermined pressure, so that the material is metal foil, plastic plate, resin plate, aluminum laminate foil, waterproof property. Paper having a thickness of, etc. can be used.
Since the orifice closure 50 is intended for sealing, it may be attached to the outside of the combustion vessel 60 or may be attached to the inside of the combustion vessel 60.
Further, the orifice closure 50 needs to have a mass that is easily broken when the pressure inside the combustion container 60 rises due to the combustion of the propellant K3 and the fragments do not scatter. In this specification, “scattering” refers to a state in which fragments and the like jump out vigorously, and the fragments and the like that jump out fly vigorously in a straight line in the protruding direction. When a metal foil, a plastic plate or a resin plate is used as the material of the orifice closure 50, if the thickness is 0.5 [mm] or less (more preferably 0.2 [mm] or less), the protruding fragments are straight. It doesn't fly vigorously in the shape, and it doesn't "scatter" because it flies down. In addition, when aluminum laminate foil or paper is used as the material of the orifice closure 50, if the thickness is 1 [mm] or less, the protruding pieces do not fly linearly vigorously and fall off. Don't scatter.
The orifice closure 50 may be omitted.

The combustion container 60 is a cylindrical container having at least one end opened in the axial direction. A screw portion 61 that is screwed into the screw portion 11 of the bottom member 10 is formed at one end that is open. The lid 63 at the other end communicates with the inside and the outside of the combustion vessel 60 and is formed with an orifice 62 that is a through hole having a diameter smaller than the inside diameter of the combustion vessel 60. The orifice 62 maintains the pressure in the combustion container 60 by the propellant K3, and ensures stable combustion and impact sound of the propellant K3.
The combustion container 60 can be fixed to the bottom member 10 by screwing, welding, brazing, or the like. However, since the combustion container 60 is fixed after the propellant K3 and the igniting agent K2 are loaded therein, heat and sparks can be obtained. It is preferable to use screws that do not use or flame.
The other end of the combustion container is an opening, and a rupturable plate is attached with a fixture instead of the lid 63 so as to cover the opening, and when the empty package burns, the rupturable plate is torn when it reaches a specified pressure, It is possible to generate an impact sound by discharging the combustion gas.

As shown in FIG. 3, the loading guide 70 facilitates handling when loading the empty package 1 into the chamber of the gun 100, or enables automatic loading by an automatic loading machine attached to the gun 100. It has a cylindrical shape with both ends opened in the axial direction. As shown in FIG. 2, one end of the loading guide 70 is fixed to the bottom member 10 so as to be coaxial with the axis ZC of the combustion container 60 so as to cover the periphery of the combustion container 60. The fixing method may be any of welding, brazing, screwing, and the like. Further, the other end of the loading guide 70 has a tapered portion 71 that serves as a guide when loading the empty package 1 into the chamber of the gun 100, and impact sound, smoke, and flame are generated from the opening hole 72 at the other end. Discharged.
Further, the loading guide 70 may be omitted.

In addition, the punching metal mentioned above can use a thing with a hole area ratio of 10 [%]-70 [%], for example. Similarly, as the above-described wire mesh, for example, one having a space ratio of 30 [%] to 80 [%] can be used.
A single base, a double base, a triple base, a multi base, etc. can be used for the propellant K3.
As the igniting agent K2, an igniting agent used in general ammunition such as black explosive or single base igniting can be used. The ignition agent K2 may be stored in a cloth bag.
In addition, a flame retardant composed of an alkali metal salt may be disposed in the combustion container 60 in order to suppress the flame. The flame retardant may be stored in a cloth bag.

● [The empty package 1 is loaded in the chamber of the artillery 100 (FIGS. 3 and 4)]
FIGS. 3 and 4A are cross-sectional views showing a state in which the empty package 1 is loaded into a chamber of the gun 100 (a space formed by the gun chain stopper 102 and the gun barrel portion 101).
FIG. 3 is a cross-sectional view showing a state in which the empty envelope 1 is loaded in the gun 100 when the outer peripheral diameter of the seal member 80 is slightly larger than the inner peripheral diameter of the gun barrel portion 101.
4A is a cross-sectional view showing a state in which the empty envelope 1 is loaded in the gun 100 when the outer peripheral diameter of the seal member 80 is slightly smaller than the inner peripheral diameter of the gun barrel portion 101. 4 (B) and 4 (C) are enlarged views of part a in FIG. 4 (A). 4 (B) is an enlarged view of a portion in a state where the empty package 1 is loaded on the gun 100, and FIG. 4 (C) is an example of burning the empty package 1 from the state of FIG. 4 (B). It is an enlarged view of the a part in a state.
As shown in FIG. 3, the outer peripheral surface of the bottom member 10 that faces the inner peripheral surface of the gun 100 (the inner peripheral surface of the gun barrel portion 101) has an outer peripheral surface of the bottom member 10 and an inner surface of the gun 100. An annular seal member 80 is provided for sealing a gap with the peripheral surface.
The seal member 80 is an elastic member such as rubber, and is fitted in the seal groove 13 formed on the outer peripheral surface of the bottom member 10.
The sealing member 80 seals the gap between the empty package 1 and the gun 100, so that combustion gas or the like when using the empty package 1 does not leak from the rear of the gun 100, and the empty package 1 can be more safely removed. Can be used.
As shown in FIG. 3, the seal member 80 is configured so that the outer diameter of the seal member 80 is in contact with the inner peripheral surface of the gun barrel portion 101 in a state where the empty package 1 is loaded on the gun 100. The outer diameter of the seal member 80 may be slightly smaller than the inner diameter of the gun barrel portion 101 as shown in FIG. May not be in contact with the inner peripheral surface of the gun barrel portion 101.
When the outer peripheral diameter of the seal member 80 is slightly smaller than the inner peripheral diameter of the gun barrel portion 101, the seal member 80 is attached so that a gap 110 is formed between the bottom groove 10 and the muzzle side of the seal groove 13. In this way, when the empty packet 1 starts to burn, the combustion gas enters the gap 110 and compresses the seal member 80 to the side opposite to the muzzle as shown in FIG. The outer periphery of the battery expands and comes into contact with the inner peripheral surface of the gun barrel portion 101. Thereby, it is possible to prevent combustion gas and the like from leaking to the rear of the gun 100. Therefore, when the empty package 1 is loaded into the gun 100, the seal member 80 is not in contact with the inner peripheral surface of the gun barrel portion 101, so that the loading can be performed smoothly and at the same time the seal member 80 is loaded into the gun 100. It is possible to prevent breakage, and it is possible to reliably seal between the outer peripheral surface of the bottom member 10 and the inner peripheral surface of the gun barrel portion 101 when the empty package 1 is burned.
The seal member 80 is not limited to rubber, and various materials such as a heat-resistant resin and a metal gasket can be used.
In the description of the present embodiment, the example of the sealing member 80 having a substantially rectangular cross-sectional shape has been described. However, the cross-sectional shape is not limited to a rectangular shape, and seal members having various shapes such as a circular shape and an elliptical shape are used. be able to.
Further, since the seal member 80 can be replaced even in the state where the empty package 1 is assembled, the seal member 80 suitable for the circumstances is suitable depending on the state of the chamber of the cannon 100 to be loaded, the local weather, and the like. Can be selected and installed.

The empty package 1 of the present invention is not limited to the appearance, shape, configuration, structure, and the like described in the present embodiment, and various modifications, additions, and deletions are possible without departing from the spirit of the present invention.
The numerical values used in the description of the present embodiment are examples, and are not limited to these numerical values.

DESCRIPTION OF SYMBOLS 1 Empty package 10 Bottom member 11 Screw part 12 Communication hole 13 Seal groove 20 Ignition agent spacer 30 Supporting auxiliary member 40 Anti-scattering member 50 Orifice closure 60 Combustion vessel 61 Screw part 62 Orifice 63 Lid part 64 Side wall 70 Loading guide 71 Taper part 72 Opening hole 80 Seal member 100 Artillery K1 Fire tube K2 Ignition agent K3 Propellant

Claims (2)

A combustion vessel that is a cylindrical vessel having at least one end opened in the axial direction;
A bottom member attached to the one end of the combustion container;
The bottom member is formed with a communication hole that communicates the outside and the inside of the combustion container,
The combustion container is loaded with a propellant, the communication hole is loaded with a fire tube for ignition, and an ignition powder is loaded between the fire tube and the propellant, and loaded into a gun. In the empty package
An annular seal member that seals a gap between the outer peripheral surface of the bottom member and the inner peripheral surface of the gun is provided on the outer peripheral surface of the bottom member and facing the inner peripheral surface of the gun. Empty package. The empty package according to claim 1,
The sealing member is an elastic member, and is an empty package fitted into a sealing groove formed on the outer peripheral surface of the bottom member.

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