JP5853612B2 - Empty package - Google Patents

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, an empty package in which the head of an empty container (corresponding to a combustion container) loaded with a propellant is sealed with a metallic rupturable plate serving as a lid. Is disclosed. The rupturable plate is provided with a kerf that is easily broken by the combustion gas. After ignition of the empty packet, the rupturable plate is maintained without being destroyed until the pressure inside the empty packet container rises to a predetermined pressure. As the pressure rises further, the rupture disc is destroyed and an impact sound is generated. Moreover, in patent document 1, the example which incorporated the empty packaging container inside the cylindrical medicine container (equivalent to a loading guide) with which the direction in which combustion gas ejects is opened, or a medicine container (equivalent to a loading guide) without using an empty container ) Is also described as an alternative to an empty packaging container.
In addition, the prior art described in Patent Document 2 discloses an impact sound generator in which a discharge hole which is a radial through slit is provided in a lid portion of the head of a combustion container loaded with a propellant. . After the impact sound generator (equivalent to an empty package) is ignited, as the pressure in the combustion vessel rises, it is deformed so that the opening area of the exhaust hole increases, the internal pressure is kept constant, and the operating environment temperature changes. However, a constant impact sound pressure can be generated. Patent Document 2 also describes an example in which an empty packaging container is built in a cylindrical loading guide having an opening in the direction in which combustion gas is ejected.

Japanese Patent No. 4740655 JP 2009-264651 A

When using a combustion container that is smaller in diameter than the gun chamber in which the empty package is loaded, the worker can more easily load the empty package into the gun chamber. It is preferable to provide a loading guide having a slightly smaller diameter. In addition, when an empty package is automatically loaded into a gun chamber using an automatic loading machine, it is essential to provide a loading guide for the empty package.
Therefore, Patent Document 1 and Patent Document 2 disclose an example of an empty package including a loading guide. In addition, the combustion container and the loading guide are required to have a strength to withstand the load during combustion and the load during loading, and metal is mainly used.
If the empty package is provided with a loading guide, in order to more easily load the empty package into the gun chamber, the distal end portion of the empty package guide is bent inward so that the distal end portion is tapered. This is preferable because an empty package can be easily loaded into the gun chamber.
However, when an empty package in which the tip of the loading guide is bent into a tapered shape is used, an unintended metal sound may be generated along with an impact sound caused by the combustion gas of the propellant inside the combustion container. When this metal sound is mixed, an impact sound different from that of an actual shell (actual package) is obtained, a sense of reality cannot be obtained, and it is not preferable as an empty package that simulates the actual sound of a shell.
The present invention was devised in view of such points, and in an empty package provided with a loading guide having a tapered tip, the mixing of metal sound that does not occur during actual shell shooting is reduced. Another object of the present invention is to provide an empty package capable of generating an impact sound approximated by the actual shooting sound of a shell.

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, It is an empty package in which an ignition agent is loaded between the fire tube and the propellant.
A loading guide, which is a container having a cylindrical shape with both ends opened in the axial direction and having an inner diameter larger than the outer diameter of the combustion container, covers the periphery of the combustion container and the combustion container. One end that is open is attached to the bottom member so as to be coaxial, and the opening at the other end of the loading guide has a tapered portion that gradually decreases in diameter.
And the reinforcement part which increases the intensity | strength of the said taper part is formed in the said taper part.

Metallic sound that may be generated when the empty package burns is generated by resonance of the taper portion of the loading guide.
According to the first aspect of the present invention, the reinforcing portion is formed in the tapered portion formed in the opening at the other end of the loading guide to increase the mechanical strength and suppress the resonance of the tapered portion.
Thereby, it is possible to suppress the generation of unintended metal sound, and it is possible to generate an impact sound that approximates the actual shooting sound of a shell.

  Next, a second invention of the present invention is the empty packet according to the first invention, wherein the reinforcing portion has a tapered tip portion in the vicinity of the opening portion in the tapered portion, and the tapered portion is inclined. It is formed by being bent further inward than on the extended line along the corner.

  According to the second aspect of the present invention, it is possible to easily realize the reinforcing portion that increases the mechanical strength of the tapered portion with a simpler configuration.

  Next, a third invention of the present invention is the empty packet according to the first invention, wherein the reinforcing portion has a tapered tip portion in the vicinity of the opening portion in the tapered portion, and an inclination of the tapered portion. The taper tip is formed so as to be bent further inward than the extended line along the corner and the taper tip portion is folded back toward the bottom member.

  According to the third aspect of the invention, it is possible to relatively easily realize the reinforcing portion having further increased mechanical strength than the second aspect of the invention.

  Next, a fourth invention of the present invention is the empty packet according to the first invention, wherein the reinforcing portion has a tapered tip portion in the vicinity of the opening portion in the tapered portion, and the tapered portion is inclined. It is formed by being bent further outward than on the extended line along the corner.

  According to the fourth aspect of the invention, the reinforcing portion that increases the mechanical strength of the tapered portion can be easily realized with a simpler configuration.

  Next, a fifth aspect of the present invention is the empty packet according to the first aspect, wherein the reinforcing portion has a thickness at least in the vicinity of the opening in the tapered portion, and is a cylinder in the loading guide. It is formed so as to be thicker than the thickness of the side wall which is a part.

  According to the fifth aspect of the present invention, it is possible to easily realize the reinforcing portion that increases the mechanical strength of the tapered portion with a simpler configuration.

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. 3 is a cross-sectional view illustrating a state in which an empty package loaded in a chemical chamber of a gun 100 is burned. It is a figure explaining the example which formed the reinforcement part 73 in the taper part 71 formed in the other end of the loading guide. 6 is a graph for explaining an example of a frequency characteristic of an impact sound by a loading guide having a reinforcing part 73 and a frequency characteristic of an impact sound by a loading guide having no reinforcing part 73. It is a figure explaining the example which formed the reinforcement part 73C in the taper part 71 formed in the other end of the loading guide. It is a figure explaining the example which formed the reinforcement part 74 in the taper part 71 formed in the other end of the loading guide. It is a figure explaining the example which comprised the thickness t2 of the taper part 71 formed in the other end of the loading guide 70 from the thickness t1 of the cylindrical part, and comprised the reinforcement part.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. 1 to 4 and 6 to 8, the X axis, the Y axis, and the Z axis indicate orthogonal coordinates, and the Z axis direction is the axial direction of the empty envelope 1 and the gun 100 (the direction toward the Z axis is Muzzle direction).

● [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. The seal member 80 may be omitted.
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 a diameter of about 4 [mm], for example.
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.
The loading guide 70 is made of metal so that it can withstand the pressure of combustion gas and high temperature load. Examples of the material include copper alloy, brass, stainless steel, iron, aluminum, etc. It is not limited to metals.

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 state in which the empty package 1 loaded in the chamber of the artillery 100 is burned (FIG. 3)]
FIG. 3 is a cross-sectional view showing a state in which the empty package 1 loaded in the chamber of the gun 100 (the space formed by the gun cap 102 and the gun barrel portion 101) is burned.
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 that seals the gap with the peripheral surface is provided.
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.

Further, the combustion gas G generated by the propellant K3 when the impact sound is generated passes through the through hole 41 of the scattering prevention member 40, then breaks the orifice closure 50 and passes through the orifice 62, and the impact sound (and Smoke, flame, etc.) are generated and pass through the opening hole 72 of the loading guide 70.
At this time, a metal sound may be mixed in the impact sound. The inventor of the present application has found that a metal sound is generated by resonance of the taper portion 71 of the loading guide 70 as a result of various experiments and verifications. Therefore, as described below, the inventor of the present invention has a structure that suppresses the resonance of the taper portion 71, thereby suppressing the generation of a metallic sound and generating an impact sound that approximates the actual shooting sound of a shell. I realized the empty package 1 that does not impair the presence.

[Example of reinforcing portion 73 formed on tapered portion 71 (FIG. 4), example of reinforcing portion 73C (FIG. 6), and effects of reinforcing portions 73 and 73C (FIG. 5)]
Since the metal sound is generated by the resonance of the taper portion 71, the metal sound can be reduced by reducing the amplitude at the time of resonance or changing the resonance frequency. However, when the resonance frequency is changed, a sound having a frequency different from that of the metal sound is generated, which is not preferable. Therefore, in order to reduce the metallic sound, the amplitude at the time of resonance is reduced. For this purpose, the structure shown in FIGS. 4A and 4B is used to increase the mechanical strength of the taper portion 71.
Moreover, the example of the other structure which increases the mechanical strength of the taper part 71 is shown to FIG. 6 (A) and (B).

The loading guide 70 is a container having a cylindrical shape with both ends opened in the axial direction and an inner diameter larger than the outer diameter of the combustion container 60, and the combustion guide and the combustion container so as to cover the periphery of the combustion container. One end that is open is attached to the bottom member 10 so as to be coaxial. Further, the opening at the other end of the loading guide 70 has a tapered portion 71 whose diameter gradually decreases.
4A shows a cross-sectional view around the taper portion 71 of the loading guide 70, and FIG. 4B shows a perspective view of the appearance around the taper portion 71 of the loading guide 70. FIG.
The loading guide 70 is made of metal, and the thickness t1 is, for example, about 1 [mm]. When the tapered portion 71 around the opening hole 72 at the other end (the end opposite to the bottom member 10) of the loading guide 70 is only a tapered conical tapered shape, the strength is not sufficient, and the empty package 1 The amplitude of resonance due to the combustion gas is large, and metal noise may be generated.
Therefore, as shown in FIG. 4A, the reinforcing portion 73 that is bent further inside than the extension line ST along the inclination angle of the tapered portion 71 is opened at the tapered tip portion in the vicinity of the opening hole 72. It is formed over the entire circumference of the hole 72. The width W1 of the reinforcing portion 73 is a width that can satisfy the strength at which the metal sound due to resonance cannot be heard, and is about 5 mm, for example.

Next, another example of the structure for increasing the mechanical strength of the tapered portion 71 of the loading guide 70 will be described with reference to FIG.
6A shows a cross-sectional view around the tapered portion 71 of the loading guide 70, and FIG. 6B shows a perspective view of the outer appearance around the tapered portion 71 of the loading guide 70. FIG.
4A and 4B, the loading guide 70 is made of metal, and the thickness t1 is, for example, about 1 [mm].
As shown in FIGS. 6 (A) and 6 (B), the first reinforcing portion is bent further inwardly from the extension line ST along the inclination angle of the tapered portion 71 at the tapered tip portion in the vicinity of the opening hole 72. In addition to forming 73A, a reinforcing portion 73C formed with a second reinforcing portion 73B in which the taper tip is further bent toward the bottom member 10 is formed over the entire circumference of the opening hole 72. The width W2 of the first reinforcing portion 73A is, for example, about 5 [mm], and the width W3 of the second reinforcing portion 73B is, for example, about 5 [mm].

FIG. 5 is a graph α showing the frequency and sound pressure level of the impact sound of the empty package with the loading guide having the reinforcing portion 73, and the frequency of the impact sound of the empty package with the loading guide having the reinforcing portion 73C. A graph γ representing the sound pressure level and a graph β representing the frequency and sound pressure level of the impact sound of the empty package to which the loading guide having neither the reinforcing portion 73 nor the reinforcing portion 73C is attached are shown.
As shown in the graph β, in the empty package to which the loading guide not having the reinforcing portions 73 and 73C is attached, there is a protruding portion at the frequency f1. This frequency f1 is about 1500 [Hz], and is a frequency that causes metal sound. 4A and 4B, an empty package (graph α) to which a loading guide having the reinforcing portion 73 shown in FIGS. 4A and 4B is attached, and a loading guide having the reinforcing portion 73C shown in FIGS. 6A and 6B are attached. In the empty package (graph γ), the protruding portion of the frequency f1 is not detected, the metal sound is reduced, and the impact sound approximated by the actual shooting sound of the shell is generated.

● [Other examples of reinforcement (Figs. 7 and 8)]
Next, an example of another structure of the reinforcing portion that increases the mechanical strength of the tapered portion 71 will be described with reference to FIGS. 7 and 8.
7A shows a cross-sectional view around the taper portion 71 of the loading guide 70 having the reinforcing portion 74, and FIG. 7B shows an external appearance around the taper portion 71 of the loading guide 70 having the reinforcing portion 74. FIG.
4A and 4B, the loading guide 70 is made of metal, and the thickness t1 is, for example, about 1 [mm].
As shown in FIGS. 7A and 7B, a reinforcing portion 74 that is bent further outward than the extension line ST along the inclination angle of the tapered portion 71 at the tapered tip portion in the vicinity of the opening hole 72, It is formed over the entire circumference of the opening hole 72. The width W4 of the reinforcing portion 74 is a width that can satisfy the strength at which the metal sound due to resonance cannot be heard, and is, for example, about 5 [mm].

8A shows a cross-sectional view of the periphery of the taper portion 71 of the loading guide 70 in which the thickness t2 of the taper portion 71 is increased to form a reinforcing portion, and FIG. The perspective view of the external appearance around the taper part 71 of the loading guide 70 which thickened thickness t2 and comprised the reinforcement part is shown.
4A and 4B, the loading guide 70 is made of metal, and the thickness t1 of the cylindrical portion (side wall) of the loading guide 70 is, for example, about 1 [mm].
Then, the thickness t 2 in the vicinity of the opening hole 72 in the tapered portion 71 is formed to be thicker than the thickness t 1 of the cylindrical portion (side wall) of the loading guide 70. The thickness t2 in the vicinity of the opening 72 in the taper portion 71 is a thickness that can satisfy the strength at which the metal sound due to resonance cannot be heard, and is about 3 [mm], for example.

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 73 Reinforcement part 73A 1st reinforcement part 73B 2nd reinforcement part 73C Reinforcement part 74 Reinforcement part 80 Seal member 100 Artillery K1 Fire tube K2 Igniting agent K3 Propellant

Claims (5)

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,
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 loading guide, which is a container having a cylindrical shape with both ends opened in the axial direction and having an inner diameter larger than the outer diameter of the combustion container, covers the periphery of the combustion container and the combustion container. One end that is open is attached to the bottom member so as to be coaxial,
The opening at the other end of the loading guide has a tapered portion that gradually decreases in diameter,
The combustion vessel is shorter than the loading guide;
An empty package in which the reinforcing portion for increasing the strength of the tapered portion is formed in the tapered portion. The empty package according to claim 1,
The reinforcing portion is an empty package formed by bending a taper tip portion in the vicinity of the opening in the taper portion further inward than an extension line along an inclination angle of the taper portion. The empty package according to claim 1,
The reinforcing portion has a taper tip portion in the vicinity of the opening in the taper portion that is bent further inward than an extension line along an inclination angle of the taper portion, and the taper tip portion is the bottom member. An empty package that is folded to the direction of. The empty package according to claim 1,
The reinforcing portion is an empty package formed by bending a taper tip portion in the vicinity of the opening in the taper portion further outward than an extension line along an inclination angle of the taper portion. The empty package according to claim 1,
The reinforcing portion is an empty package formed such that a thickness of at least the vicinity of the opening in the tapered portion is larger than a thickness of a side wall which is a cylindrical portion in the loading guide.

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