JP2013155978A - Blank cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe blank cartridge that prevents fragments and unburned materials such as propellant powder from flying off at high speeds, which can uniformly burn the propellant powder.SOLUTION: A blank cartridge includes: a burning container 60 that is a cylindrical container having at least one opened end in an axial direction; and a bottom member 10 attached to the opened end of the burning container. The bottom member has a communication hole 12 connecting the outside with the inside of the burning container, the inside of the burning container is loaded with propellant powder K3, the communication hole is loaded with a primer K1 for ignition, and a part between the primer and the propellant powder is loaded with igniting powder K2. In the burning container, a flying-off preventing member 40 with a plurality of penetrated parts 41 is disposed to an end part on a side, to which the bottom member is not attached, and the igniting powder K2 is disposed at a central part in a radial direction in the burning container 60 and is disposed to be extended in the vicinity of the flying-off preventing member 40 from the primer K1 in the axial direction.

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.
The empty package mainly generates a shooting sound without firing an actual shell in a training or ceremony using a cannon such as a cannon.
For example, the prior art described in Patent Literature 1 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 rupture disc is provided with a kerf that does not penetrate in the thickness direction so as to be easily broken by the combustion gas, and ruptures until the pressure inside the combustion container rises to a predetermined pressure after ignition of the empty package. The plate is maintained without being destroyed, and with further pressure increase, the rupture plate is destroyed and an impact sound is generated.
In addition, in the prior art described in Patent Document 2, an impact sound is generated by providing a discharge hole which is a radial through slit penetrating in the thickness direction in the lid portion of the head of the combustion container loaded with a propellant. An apparatus is disclosed. In the invention described in Patent Document 2, after the impact sound generator (corresponding to an empty package) is ignited, the pressure inside the combustion vessel is increased so that the opening area of the discharge hole is increased and the internal pressure is kept constant. And a constant impact sound pressure can be generated even if the use environment temperature changes.
In addition, the prior art described in Patent Document 3 discloses a fire tube body in which the length of the fire tube is 0.3 to 0.7 times the length of the shell within the shell of the shell. ing. By using the fire tube, the propellant can be uniformly ignited even if the gunpowder uses a propellant with poor ignitability.

Japanese Patent No. 4740655 JP 2009-264651 A JP 2001-311600 A

In conventional empty packages that used wood fiberboard lid plugs, there is a possibility that pieces of lid plugs destroyed by the pressure of combustion gas and unburned material of propellant may be scattered in front of the gun. It was not desirable to use it at ceremonies that gathered spectators, and it was necessary to provide a certain restricted area in front of the gun. 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.
In the prior art described in Patent Document 1, the fragments of the rupturable plate do not scatter, but the rupturable plate opens largely along the kerf due to the pressure of the combustion gas, and unburned materials etc. of the propellant are gunned. It is not preferable because it may be scattered in front of the.
Also, in the conventional technique described in Patent Document 2, since the opening area of the discharge hole is increased by the pressure of the combustion gas, similarly to Patent Document 1, the unburned material of the propellant may be scattered in front of the gun. This is not preferable.
Moreover, in the prior art described in Patent Document 3, a bullet is disclosed, but no description regarding an empty package is found.
The present invention was devised in view of such a point, and is safer without causing debris or unburned material of the propellant to scatter vigorously, and to make the propellant burn more uniformly. It is an object to provide an empty package that can be used.

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 open 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, Between the fire tube and the propellant is an empty package in which an ignition powder is loaded.
And the scattering prevention member in which the several penetration part was formed is arrange | positioned in the edge part by which the said bottom member is not attached inside the said combustion container, The said ignition powder is the inside of the said combustion container. In the radial center, and extended from the fire tube to the vicinity of the anti-scattering member in the axial direction.

According to the first aspect of the present invention, the anti-scattering member having a plurality of penetrating portions is disposed at the end in the combustion container (the end opposite to the bottom member, that is, the end on the muzzle side). Therefore, it is possible to appropriately prevent the unburned material of the propellant from jumping out of the combustion container.
Further, since the igniting agent extends in the axial direction from the fire tube to the vicinity of the anti-scattering member in the radial center in the combustion container, the propellant can be burned more uniformly.

  Next, a second invention of the present invention is the empty packet according to the first invention, wherein the igniting agent is extended in the axial direction until it contacts the scattering prevention member inside the combustion container. And supports the side of the bottom member in the scattering prevention member.

  According to the second aspect of the invention, the ignition member is extended in the axial direction until it comes into contact with the anti-scattering member, so that the support member for supporting the anti-scattering member on the end of the combustion container and the ignition agent are combined. Can be made.

  Next, a third invention of the present invention is the empty package according to the first invention, wherein the ignition powder is a cylindrical container having an open end on the side of the fire tube in the axial direction. And is accommodated in an igniting agent storage container having a plurality of penetrating portions formed on a side surface, and the igniting agent storage container is extended in the axial direction until contacting the scattering prevention member inside the combustion container. And supports the side of the bottom member in the scattering prevention member.

  According to the third aspect of the invention, the igniting agent is accommodated in the igniting agent storage container, and the igniting agent storage container is disposed so as to extend in the axial direction until it comes into contact with the scattering prevention member. The supporting member for supporting the igniter and the igniting agent storage container can be used in combination.

FIG. 3 is a perspective view for explaining each member constituting the empty package 1 in the first embodiment. It is sectional drawing explaining the state which assembled | attached the empty package 1 in 1st Embodiment. In 2nd Embodiment, it is a perspective view explaining each member which comprises the empty package 1. FIG. In 2nd Embodiment, it is sectional drawing explaining the state which assembled | attached the empty parcel 1. FIG. In 3rd Embodiment, (A) is a figure explaining the structure of a rupture disk, (B) is sectional drawing explaining the state which assembled | attached the empty packet 1. As shown in FIG. In 4th Embodiment, (A) is a figure explaining the structure of a scattering prevention member, (B) is sectional drawing explaining the state which assembled | attached the empty packet 1. As shown in FIG.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. 1 to 6, the X-axis, Y-axis, and Z-axis indicate orthogonal coordinates, and the Z-axis direction is the axial direction of the empty packet 1 (the direction toward the Z-axis is the gun of a gun loaded with an empty packet) Mouth direction).
Hereinafter, the first to fourth embodiments will be described in order.

[First Embodiment (FIGS. 1 and 2)]
FIG. 1 shows a perspective view of each member constituting the empty package 1 in the first embodiment, and FIG. 2 shows a cross-sectional view in a state where the empty package 1 is assembled in the first embodiment. ing.
In 1st Embodiment, as shown in FIG.1 and FIG.2, the point which the scattering prevention member 40 is arrange | positioned in the edge part inside the combustion container 60, and the ignition powder K2 is a scattering prevention member from the fire tube K1. It is characterized in that it extends in the direction of the axis ZC until it comes into contact with 40 and that the anti-scattering member 40 is supported in the direction of the axis ZC by the igniting agent K2 and the igniting agent storage container 30.
As shown in FIGS. 1 and 2, the empty package 1 includes a bottom member 10, a seal member 80, a fire tube K 1, an ignition agent K 2, a propellant K 3, an ignition agent storage container 30, a combustion container 60, a scattering prevention member 40, A closure 50, a loading guide 70, and the like are included.
Various materials such as iron, stainless steel, aluminum, and brass can be used as materials for the bottom member 10, the combustion container 60, the scattering prevention member 40, and the loading guide 70.

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 an inner wall of a gun (not shown) in which the empty package 1 is loaded. The bottom member 10 is attached to one open end of the combustion vessel 60 to be a lid on the one end side, and is formed on the screw portion 11 on the one end side in the axial direction of the combustion vessel 60. The screw part 61A is screwed.
Further, a recess 14 into which the igniter storage container 30 is fitted is formed on the side of the combustion container 60 in the communication hole 12.
The seal member 80 is an annular elastic member such as rubber or resin, for example, and is inserted into the seal groove 13 so that the gap between the gun and the empty packet 1 when the empty packet loaded in the gun chamber is burned. To seal. The seal member 80 may be omitted.

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 fire tube K1 is inserted substantially in the center of the shaft of the bottom member 10, and a through hole (a side of the communication container 12 in the communication hole 12) for guiding the flame of the fire tube K1 into the combustion container 60 is provided in front of the fire pipe K1. Opened.
The igniter K2 is loaded between the fire tube K1 and the propellant K3, ignited by the fire tube K1, and ignites the propellant K3.
Further, the igniting agent K2 is disposed in the center portion in the radial direction inside the combustion container 60, and is disposed so as to extend from the fire tube K1 to the scattering preventing member 40 in the axial direction. In addition, it may be extended to the vicinity of the scattering prevention member 40 without contacting the scattering prevention member 40. The igniting agent K2 is accommodated in the igniting agent container 30.
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.
The igniting agent storage container 30 is a cylindrical container in which an end on the side of the fire tube K1 is opened and an end on the side opposite to the bottom member 10 (an end on the side of the scattering prevention member 40) is blocked. A plurality of through portions 31 are formed on the side surface. The ignition powder container 30 is extended in the axis ZC direction until it is fitted in the recess 14 of the bottom member 10 and comes into contact with the scattering prevention member 40, and supports the scattering prevention member 40 in the axis ZC direction.
When directly storing the powdery or granular igniter K2 in the igniter container 30, in order to prevent leakage from the penetration part 31, for example, an aluminum laminate foil having a thickness of 1 mm or less, A sealing material, such as paper, that is easily broken by the combustion gas when the igniting agent is ignited is adhered or adhered to the inside or outside of the igniting agent container 30.
The propellant K3 is loaded in the space between the surface of the bottom member 10 and the anti-scattering member 40 in the combustion container 60, and around the igniter storage container 30 (that is, around the igniter K2), and ignited by the igniter K2. Then, the impact sound of the empty package 1 or the impact sound and smoke and flame are generated.
A single base, a double base, a triple base, a multi base, etc. can be used for the propellant K3.
In addition, a flame retardant made of an alkali metal salt may be disposed in the combustion container 60 in order to suppress muzzle flame. The flame retardant may be stored in a cloth bag.

The combustion container 60 is a cylindrical container having at least one end opened in the axial direction. A threaded portion 61A that is screwed into the threaded 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 holds the pressure (for example, 5 [MPa] to 100 [MPa]) 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 lid 63 can be fixed to the combustion container 60 by screwing, welding, brazing, or the like, and can be formed integrally with the side wall 64 that is the cylindrical surface of the combustion container 60. In consideration of securing rigidity and reducing assembly costs, it is preferable to form them integrally.
Moreover, when the fixing method of the combustion container 60 and the bottom member 10 is screwed, it is preferable to provide a recessed part or a convex part in a part of the cover part 63 so that the fastening with a tool becomes easy.
The diameter of the orifice 62 and the type and amount of the propellant K3 are appropriately set according to the desired impact sound volume (for example, 100 [dB] to 130 [dB]).
In the example of FIGS. 1 and 2, an orifice 62, which is an opening, is formed at the other end of the combustion vessel 60. However, the orifice 62 is formed as a lid without opening, and a through groove or non-penetration is formed in the lid. A groove may be provided.

The anti-scattering member 40 is supported by the igniting agent storage container 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 on the other end side of the combustion container 60, and has a predetermined diameter for blocking the propellant K3 without passing unburned material or the like. It is formed of a punching metal having a plurality of through holes, a wire mesh having a plurality of through spaces, or the like. The predetermined diameter is set according to the type and shape of the propellant K3, and is a diameter of about 4 [mm], for example.
Hereinafter, the through hole of the scattering prevention member 40 and the through space portion are collectively referred to as “through portion (41)”.
Further, the scattering prevention member 40 is formed to be concave toward the orifice 62 side (Z-axis direction). However, as shown in FIG. 6, the spacer member 40B may not be concave as shown in FIG. Good.
Further, the position may be fixed by press-fitting the scattering prevention member 40 into the combustion container 60, or the position may be fixed by brazing the scattering prevention member 40 inside the combustion container 60.

In addition, when using a punching metal as the scattering prevention member 40 mentioned above, a hole area ratio shall be 10 [%]-70 [%]. In addition, a hole area rate means the ratio for which the hole part pierce | punched by punching processing accounts. Moreover, as a material of the punching metal, a metal such as iron, stainless steel, aluminum, or brass can be used.
Moreover, when using a metal mesh as the scattering prevention member 40, a space rate shall be 25 [%]-90 [%]. The space ratio is expressed by the following (Formula 1).
Space ratio [%] = [opening ² / (opening + wire diameter) ² ] * 100 (Formula 1)
Further, as the material of the wire mesh, metals such as iron, stainless steel, and brass can be used.
When the propellant K3 starts to burn, the propellant K3 burns from its outer surface (perpendicularly) toward the inner surface of the propellant K3, and the outer surface retreats with combustion. Accordingly, since the outer shape of the propellant K3 becomes smaller as the combustion time elapses, the propellant K3 can jump out in the muzzle direction (Z-axis direction) through the penetration portion 41 of the scattering prevention member 40 after a certain time. There is sex. For this reason, the size of the penetrating part 41 (opening part) of the metal mesh or punching metal is such that the unburned part of the propellant K3 passes through the penetrating part 41 of the anti-scattering member 40 and the muzzle (fire gun loaded with the empty package 1). It is set to an appropriate size so that it will burn out until it reaches the muzzle.
Further, the size and density of the penetrating portion 41 of the anti-scattering member 40 (related to the open area ratio and the space ratio) are the pressure in the combustion container 60 depending on the relationship between the burning rate of the propellant K3 and the total surface area of the propellant K3. It also affects.
Accordingly, the space ratio of the metal mesh or the punching metal opening ratio is appropriately determined in consideration of the shape and combustion speed of the propellant K3 to be used, the pressure in the designed combustion container, the distance from the tip of the combustion container 60 to the muzzle, and the like. Is set.

The closure 50 prevents moisture in the air from passing through the combustion container 60 when the empty package 1 is stored, and prevents raindrops from entering the combustion container 60 during handling of the empty package 1 in the rain. There is a size covering the orifice 62, and the orifice 62 is sealed by being bonded or adhered so as to cover the orifice 62.
The closure 50 is intended for sealing and does not increase the internal pressure in the combustion container 60 after ignition to a predetermined pressure, so that the material is metal foil, plastic plate, resin plate, aluminum laminate foil, waterproofing. It is possible to use a paper having the same.
Since the closure 50 is intended for sealing, the closure 50 may be attached to the outside of the combustion container 60 or may be attached to the inside of the combustion container 60.
Further, the closure 50 needs to be easily broken by the pressure inside the combustion container 60 due to the combustion of the propellant K3, and the broken pieces have a mass that does not cause the above-mentioned “scattering” state. When a metal foil, a plastic plate or a resin plate is used as the material of the closure 50, if the thickness is 0.5 [mm] or less (more preferably 0.2 [mm] or less), the protruding fragments are linear. It doesn't fly vigorously, and it doesn't "scatter" because it fluctuates. In addition, when aluminum laminate foil or waterproof paper is used as the material of the closure 50, if the thickness is 1 [mm] or less, the protruding fragments do not fly straightly and fall off. It will not "scatter".
The closure 50 may be omitted.

The loading guide 70 facilitates handling when the empty package 1 is loaded in a gun chamber (not shown), or enables automatic loading by an automatic loading machine attached to the gun. Has an open cylindrical shape. 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. 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 gun chamber, and impact sound, smoke and flame are discharged from the opening hole 72 at the other end. Is done.
Further, the loading guide 70 may be omitted.

In the empty package 1 of 1st Embodiment, it can prevent appropriately that the unburned material of the propellant K3 scatters by arrange | positioning the scattering prevention member 40 in the combustion container 60. FIG.
In addition, since the igniting agent K2 is extended in the direction of the axis ZC to the vicinity of (or until contact with) the scattering preventing member 40, the propellant K3 can be burned more uniformly.
Further, the igniting agent storage container 30 is extended in the axis ZC direction until it comes into contact with the scattering prevention member 40, and the scattering prevention member 40 can be appropriately supported in the axis ZC direction in the combustion container 60. There is no need to provide a new one. Note that the igniting agent container 30 may be omitted, and the igniting agent K2 may be extended in the axis ZC direction until it contacts the scattering preventing member 40, and the scattering preventing member 40 may be supported by the igniting agent K2 in the axis ZC direction. .

[Second Embodiment (FIGS. 3 and 4)]
FIG. 3 is a perspective view of each member constituting the empty package 1 in the second embodiment, and FIG. 4 is a cross-sectional view of the second embodiment with the empty package 1 assembled. Show.
In the second embodiment, as shown in FIGS. 3 and 4, compared to the first embodiment shown in FIG. 1 and FIG. The difference is that the flange portion 42 is formed on the member 40A and is locked to the edge 60B of the combustion vessel 60A, and the rupturable plate 65 is attached to the other end of the combustion vessel 60A. Hereinafter, this difference will be mainly described.

The combustion container 60A has a large opening at both ends, and a screw portion 61B is also formed at the other end on the side where the bottom member 10 is not attached. Then, the screw portion 61B is screwed into a screw portion formed on the inner wall of the mounting portion 65C, which is the side surface of the rupturable plate 65.
Similar to the combustion container 60 in the first embodiment, a screw part 61A is formed at one end of the combustion container 60A and is screwed into the screw part 11 of the bottom member 10.
The scattering prevention member 40A is provided with a flange portion 42 with respect to the scattering prevention member 40 of the first embodiment, and the flange portion 42 is engaged with the edge 60B at the other end of the combustion container 60A. Is fixed. The point that the scattering preventing member 40A is concave and the point that the plurality of through portions 41 are provided are the same as in the first embodiment.
Moreover, since the structure, arrangement | positioning, etc. of the igniting agent K2 and the igniting agent storage container 30 are the same as that of 1st Embodiment, description is abbreviate | omitted.

The rupturable plate 65 has a cylindrical shape, and a rupture portion 65B, which is a cylindrical end surface, and an attachment portion 65C, which is a cylindrical cylindrical surface, are integrally formed.
The rupture portion 65B serves as a lid for the opening 62A on the other end side of the combustion vessel 60A, and a screw portion for fixing the rupture plate 65 to the screw portion 61B of the combustion vessel 60A is formed on the inner wall of the attachment portion 65C. ing.
In the central portion of the rupture portion 65B in the radial direction, one or a plurality of groove portions 65A (in the through grooves) that are grooves extending radially outward from the center and penetrating in the thickness direction of the rupture portion 65B. Equivalent) is formed (radially). The rupturable plate 65 maintains the pressure (for example, 5 [MPa] to 100 [MPa]) in the combustion container 60 by the propellant K3, and ensures stable combustion and impact sound of the propellant K3.
The rupturable plate 65 is set to have a strength that is opened by the pressure of the combustion gas. When the pressure in the combustion container 60A exceeds the pressure, the rupturable plate 65 is deformed so as to open along the groove 65A (rupture). No debris.
The rupturable plate 65 can be fixed to the combustion vessel 60A by screwing, welding, brazing, or the like, and can be formed integrally with the side wall 64 that is the cylindrical surface of the combustion vessel 60A.
The pressure at which the rupturable plate 65 starts to deform and the type and amount of the propellant K3 are appropriately set according to the desired impact sound volume (for example, 100 [dB] to 130 [dB]).
When the propellant K3 starts combustion, the pressure inside the combustion container 60A increases, and the rupture disc 65 is moved so that the rupture portion 65B is turned up along the groove portion 65A in the discharge direction of the combustion gas (Z-axis direction). Deformation increases the opening area. However, since the portion where the groove portion 65A is not formed is not broken, the fragments of the rupturable plate 65 are not scattered.
When the groove 65A is a through groove, the closure 50 is attached so as to cover the groove 65A.

In the empty package 1 of the second embodiment, by using the rupturable plate 65 without providing the orifice in the combustion vessel 60A, various rupturable plates 65 can be selected and attached to the combustion vessel 60A depending on the situation. . Therefore, it is easy to adjust the impact sound at the site where the empty package 1 is used as compared with the first embodiment. In addition, it is the same as that of 1st Embodiment that the unburned thing etc. of the propellant K3 do not scatter, and to make the propellant K3 burn more uniformly.
In addition, since the scattering prevention member 40A is fixed to the edge 60B of the combustion container 60A by the flange portion 42, the igniting agent K2 and the igniting agent storage container 30 are extended in the axis ZC direction until they come into contact with the scattering prevention member 40A. It does not need to be, and it is sufficient that it is extended to the vicinity of the scattering prevention member 40A. Further, the ignition powder container 30 may be omitted.

● [Third Embodiment (FIG. 5)]
FIG. 5A shows the structure of the rupture member 68 and the attachment member 67 in the third embodiment, and FIG. 5B shows the state in which the empty package 1 is assembled in the third embodiment. FIG.
In the third embodiment, as shown in FIGS. 5A and 5B, the rupturable plate 65 includes a rupturable member 68 and an attachment member as compared with the second embodiment shown in FIGS. 67 and the point which is comprised by the separate member of this. Hereinafter, this difference will be mainly described.

The mounting member 67 has a cylindrical shape, and a support portion 67B that is a cylindrical end surface and a mounting portion 67C that is a cylindrical surface of the cylindrical shape are integrally formed. A through hole 67A having a diameter smaller than the diameter of the rupturable member 68 is formed.
As shown in FIGS. 5A and 5B, the support portion 67B supports the rupture member 68 on the end surface of the combustion vessel 60A, and the attachment portion 67C is a screw portion for screwing the screw portion 61B of the combustion vessel 60A. Is formed on the inner wall and screwed into the threaded portion 61B of the combustion vessel 60A.
The rupturable member 68 has a disk-like shape, and is a groove that extends from the center to the radially outward side in the radial central portion and penetrates in the thickness direction of the rupturable member 68. One or a plurality of groove portions 68A (corresponding to through-grooves) are formed (radially).
Note that, as in the second embodiment, the portion of the rupturable member 68 where the groove 68A is not formed is not broken, so that the pieces of the rupturable member 68 are not scattered.
When the groove 68A is a through groove, the closure 50 is attached so as to cover the groove 68A.

In the empty package 1 of the third embodiment, the unburned matter of the propellant K3 does not scatter and the propellant K3 is burned more uniformly as in the second embodiment.
Similarly to the second embodiment, since the scattering preventing member 40A is fixed to the edge 60B of the combustion container 60A by the flange portion 42, the igniting agent K2 and the igniting agent storage container 30 are connected to the scattering preventing member 40A. It does not need to be extended in the direction of the axis ZC until it comes into contact, and may be extended to the vicinity of the scattering prevention member 40A. Further, the ignition powder container 30 may be omitted.
In the third embodiment, since the rupturable member 68 has a simple disk shape, the rupturable member 68 can be easily created with respect to the rupturable plate 65 of the second embodiment. For this reason, a plurality of rupture members 68 having different pressures at the time of rupture (opening deformation) are prepared in advance, and an appropriate rupture member 68 is selected and used depending on the situation. Convenient to.

[Fourth embodiment (FIG. 6)]
FIG. 6A is a view for explaining the structure of the scattering prevention member 40C and the spacer member 40B in the fourth embodiment, and FIG. 6B shows a sectional view in a state where the empty package 1 is assembled. ing.
In 4th Embodiment, as shown in FIG. 6, the scattering prevention member 40 in the 1st-3rd embodiment is a separate member of the spacer member 40B and the (plate-shaped) scattering prevention member 40C. It is different in the configuration. Hereinafter, this difference will be mainly described. In addition, FIG. 6 shows what changed the scattering prevention member 40 into the spacer member 40B and the scattering prevention member 40C with respect to 2nd Embodiment shown in FIG. 4 as an example, and the 1st and 3rd Since it is the same about the example which changed the scattering prevention member 40 of embodiment, illustration is abbreviate | omitted.

The spacer member 40 </ b> B is a cylindrical member having an opening 43 at the center, and secures a predetermined interval between the scattering prevention member 40 </ b> C and the rupturable plate 65.
The scattering prevention member 40 </ b> C is a flat plate (disc-shaped) member, and a plurality of through portions 41 are formed. The outer diameter of the scattering prevention member 40C is set larger than the inner diameter of the combustion container 60A, and the scattering prevention member 40C is fixed to the edge 60B of the combustion container 60A. It does not have to be extended in the direction of the axis ZC until it comes into contact with the anti-scattering member 40C, and only needs to be extended to the vicinity of the anti-scattering member 40C. Further, the ignition powder container 30 may be omitted.

Combustion gas generated by the combustion of the propellant K3 in the combustion container 60A passes through the penetration part 41 of the anti-scattering member 40C, ruptures (opens) the rupture plate 65, and is released to the outside of the combustion container 60A. Occur. In this case, the penetration part 41 is formed to the vicinity of the outer periphery of the scattering prevention member 40C. However, if there is no spacer member 40B, the penetration part 41 provided near the outer periphery of the scattering prevention member 40C is blocked by the rupturable plate 65. As a result, the desired impact sound may not be obtained, or the pressure in the combustion container 60A may become too high. However, by providing the spacer member 40B, it is possible to flow the combustion gas smoothly without the through-portion 41 blocked by the rupturable plate 65, and a desired impact sound can be obtained, and the pressure in the combustion container 60A can be obtained. Can be appropriately prevented from becoming too high.
Thus, by providing the spacer member 40B, it is not necessary to form the scattering prevention member 40C in a concave shape, and the scattering prevention member 40C can be formed into a simple flat shape, so that the formation of the scattering prevention member 40C is easy. is there. Further, since the volume occupied by the scattering preventing member 40C in the combustion container 60A is reduced, more propellant K3 can be filled in the combustion container 60A.

  In the second to fourth embodiments described above, the configuration in which the through-groove or the non-through-groove is provided in the rupturable plate and the location where the rupturable plate is opened by the pressure of the combustion gas has been described. Furthermore, the groove portion may be easily broken by forming the central portion of the rupturable plate (region where the groove portion is provided) to be thinner than the outer peripheral portion. Further, the rupturable plate and the combustion container 60A may be integrally formed. In particular, when the rupturable plate and the combustion vessel 60A are integrated, the rupturable plate is secured while ensuring the strength that the lid of the combustion vessel 60A (an integrally constructed rupturable plate) does not separate from the combustion vessel 60A when the empty packet 1 is burned. It is effective to make it easy to break and deform.

In the second and third embodiments, the scattering prevention member 40 used in the first embodiment may be used instead of the scattering prevention member 40A. The scattering prevention member 40 is not provided with the flange portion 42, and the outer diameter of the scattering prevention member 40 is set smaller than the inner diameter of the combustion container 60A. In this case, the igniting agent K2 or the igniting agent storage container 30 is extended in the axis ZC direction until it contacts the scattering preventing member 40, and the scattering preventing member 40 is supported in the axis ZC direction.
Further, in the fourth embodiment, when the combustion container 60 of the first embodiment is used, a scattering prevention member having an outer diameter smaller than the inner diameter of the combustion container 60A of the second and third embodiments is used. When used, the igniting agent K2 or the igniting agent storage container 30 is extended in the axis ZC direction until it contacts the scattering preventing member 40, and the scattering preventing member 40 is supported in the axis ZC direction.
In the second to fourth embodiments, the groove portion 65A of the rupturable plate 65 and the groove portion 68A of the rupturable member 68 may be non-penetrating grooves that do not penetrate in the thickness direction. Since 50 is unnecessary, the number of parts can be reduced.

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.
In the description of the present embodiment, the example in which the groove portion of the rupturable plate (or rupture member) is either a through groove or a non-through groove is described. However, a part of the groove portion is a through groove and the rest is a non-through groove. You may comprise as follows. Further, instead of the groove portion, a through hole and a through groove may be combined, or a through hole and a non-through groove may be combined.
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 40, 40A, 40C Anti-scattering member 40B Spacer member 41 Through part 42 Flange part 50 Closure 60, 60A Combustion vessel 61A, 61B Screw part 65 Rupture plate 65A Groove part 65B Rupture part 65C attachment part 67 attachment member 67A through hole 67B support part 67C attachment part 68 rupture member 68A groove part 70 loading guide 71 taper part 72 opening hole 80 seal member K1 fire tube K2 ignition agent K3 propellant

Claims (3)

A combustion container that is a cylindrical container having at least one end opened in the axial direction;
A bottom member attached to the open end of the combustion vessel,
The bottom member is formed with a communication hole that communicates the outside and the inside of the combustion container,
In an empty package, a propellant is loaded inside the combustion container, a fire tube for ignition is loaded in the communication hole, and an ignition powder is loaded between the fire tube and the propellant. ,
A scattering prevention member in which a plurality of through portions are formed is disposed at an end portion on the side where the bottom member is not attached inside the combustion container,
The igniter is disposed in the center portion in the radial direction inside the combustion container, and is extended from the fire tube to the vicinity of the scattering prevention member in the axial direction. The empty package according to claim 1,
The igniter is extended in the axial direction until it contacts the scattering prevention member inside the combustion container, and supports the bottom member side of the scattering prevention member. The empty package according to claim 1,
The igniting agent is accommodated in an igniting agent container that is a cylindrical container having an open end on the side of the fire tube in the axial direction and has a plurality of through portions formed on the side surface.
The igniter container is an empty package that extends in the axial direction until it contacts the scattering prevention member inside the combustion container, and supports the bottom member side of the scattering prevention member.

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