KR102464715B1 - Hand grenade for practice - Google Patents

Abstract

The present invention relates to a hand grenade for practice. In order to prevent environmental pollution, the outside of a grenade body is made of paper material. By filling the inside of the grenade body with an eco-friendly filler (e.g. ocher or barite), a product can be decomposed in nature without the need to recover the same after use on land or sea. The present invention describes various embodiments related to hand grenades for practice. According to one embodiment, the hand grenade for practice comprises: a grenade body; a paper cylinder made of paper material disposed outside the grenade body; and a filler filled in the interior of the grenade body. The filler may include at least one of ocher or barite. In addition, various other embodiments are possible.

Description

HAND GRENADE FOR PRACTICE

Various embodiments of the present invention relate to an exercise grenade that can be decomposed in its natural state without the need to recover the product after use on land or at sea.

In general, a grenade is a small bomb for close combat for killing an enemy or destroying a weapon in close combat with an enemy, and is manufactured to be relatively light so that it can be thrown by a user's hand.

According to the purpose of use, grenades are classified into fragmentation grenades for killing people, attack grenades for destroying weapons, gas grenades that lower the enemy's power, and smoke grenades for signal purposes. It is necessary to practice sufficient usage in advance or learn the safety rules in advance because it is possible to damage not only oneself but also allies due to negligence.

Therefore, during training or practice other than actual combat situations, training is received with a practice grenade that has relatively small explosive power and is not dangerous to the human body. A detonator tube for storing explosive explosives is installed at the bottom.

When practicing using such a conventional practice grenade, only the binge effect according to the ignition of the blast gunpowder appears, so that the trainees need a visual effect for an effect closer to the performance.

During military training using such a conventional practice grenade, the training efficiency is improved by creating an atmosphere similar to the actual combat situation by allowing the trainees to exhibit the auditory effect of the binge and the visual effect of the smoke release at the same time. A grenade that can be maximized has been proposed.

The conventional practice grenade has a body and a fuse made of a metal material, and after use, the practice grenade is recovered and reused.

However, if the conventional practice grenade is not recovered after use, the metal body and the fuse remain as they are without being decomposed in nature, so there is a problem of contaminating the natural environment.

In addition, when the conventional practice grenade is used in the sea of the navy instead of the land of the army, it is impossible to recover after throwing the product in the water because it has to practice throwing it in the water of the sea. Since it does not naturally decompose in water and remains in the sea, there is a disadvantage in that serious marine pollution occurs.

As a prior document related to the present invention, there is Republic of Korea Utility Model Registration No. 20-0335987 (published on December 12, 2003), and the prior document discloses a description of a “training grenade”.

In various embodiments of the present invention, the exterior of the shell is made of paper material, and an eco-friendly filler (eg, ocher or barite) is filled in the interior of the shell to produce products on land (eg, army) or at sea (eg, navy) The goal is to provide an exercise grenade that can be decomposed in a natural state without the need to retrieve it after use.

However, the technical problems to be achieved by the various embodiments of the present invention are not limited to the above technical problems, and other technical problems may exist.

According to various embodiments of the present invention, a grenade for practice includes: a bullet; a paper tube made of paper material disposed on the outside of the bullet body; and a filler that is filled in the interior of the carbon body, and the filler may include at least one of loess or barite.

According to various embodiments of the present invention, the outer surface of the paper tube may be coated with a first coating agent to waterproof the bullet.

According to various embodiments of the present invention, the first coating agent may include a water-based paint.

According to various embodiments of the present invention, a finishing pad for closing the opening formed on the front surface of the bullet; and a fuse assembly coupled to the finishing pad and arranging an binge agent and a smoke agent; wherein the finishing pad has at least two release holes for emitting the binge and smoke generated from the binge and smoke agent. can be formed.

According to various embodiments of the present disclosure, the filler includes a U-shaped filler, and an open portion of the U-shaped filler is disposed toward the at least two or more release holes, and the U-shaped filler and A space between the fuse assembly and the spaced apart as well as a regular interval may be formed.

According to various embodiments of the present invention, an binge paper tube made of a paper material in which the binge agent and the smoke agent are embedded may be disposed in the fuse assembly.

According to various embodiments of the present invention, the outer surface of the binge paper tube may be coated with a second coating agent for chemical resistance, water resistance, waterproofness and stain resistance of the binge agent and the smoke film.

According to various embodiments of the present invention, the second coating agent may be prepared by first mixing an adhesive and a curing agent in a ratio of 100:25, followed by secondary mixing of a red pigment and a diluent.

According to various embodiments of the present invention, a first coating is formed by first coating the second coating agent on the outer surface of the binge paper tube, then drying the first coating agent at 65° C. for 3 hours, and the outer surface of the first coating material After the second coating, the second coating may be dried at 50° C. for 24 hours to form a second coating.

According to various embodiments of the present invention, a paper tube made of paper is disposed on the outside of the projectile included in the practice grenade, and an eco-friendly filler (eg, ocher or barite) is filled inside the projectile, and the projectile By constructing a paper tube made of paper material containing the explosive and smoke agent of the fuse assembly in the interior of the and, thereby, it is possible to prevent environmental pollution that may occur on land or in the sea. Thus, the product can be used not only by the army on land, but also by the navy at sea.

In addition, since the paper tube and the binge paper tube are made of paper, it is possible to minimize the user's injury due to debris during use as well as excellent explosion spraying and binge sound effects in the event of an explosion.

In addition, by filling a U-shaped eco-friendly filler in the interior of the bullet, and forming at least two or more release holes for emitting a smoke film of a binge and a smoke film in the bullet, the U-shaped eco-friendly filler and at least two or more emission The hole can be manufactured in the high-low pressure part system structure in the shell, and the U-shaped eco-friendly filler and at least two or more discharge holes produced in this way not only do not cause damage to the shell when the shell explodes, but also damage the human body. occurrence can be prevented.

In addition, by coating the primary coating agent on the outer surface of the carbon body, the carbon body can improve the waterproof and moisture-proof by the primary coating agent.

In addition, by coating the second coating agent on the outer surface of the binge paper tube disposed on the fuse assembly, the binge paper tube can implement chemical resistance, water resistance, waterproofness and moisture resistance by the second coating agent, and the binge paper tube from contaminants It is possible not only to protect the binge drink and the smoke agent built into the penetration, but also store the binge drink and the smoke agent for a long time.

1 is a perspective view showing the configuration of a grenade for practice according to various embodiments of the present invention.
Figure 2 is a side cross-sectional view showing a combined state of a grenade for practice according to various embodiments of the present invention.
3 is an enlarged side cross-sectional view of part A of FIG. 2 , and is a view showing the first coating agent formed on the branch tube of the exercise grenade.
4 is a side cross-sectional view showing a fuse assembly in the configuration of a practice grenade according to various embodiments of the present invention.
5 is an enlarged cross-sectional side view of part B of FIG. 4, and is a view showing the second coating agent formed in the blast paper tube of the fuse assembly.

Since the present invention can have various changes and can have various embodiments, some embodiments will be described in detail with reference to the drawings. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as 'first' and 'second' may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. The term 'and/or' includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, relative terms described based on what is shown in the drawings, such as 'front', 'rear', 'top', 'bottom', etc., may be replaced with ordinal numbers such as 'first' and 'second'. In ordinal numbers such as 'first' and 'second', the order is the mentioned order or arbitrarily determined, and may be arbitrarily changed as necessary.

Terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present invention, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present invention, it should not be interpreted in an ideal or excessively formal meaning. does not

In the practice grenade 10 according to various embodiments of the present invention, the outside of the bullet body 20 is made of paper material, and an eco-friendly filler 40 (eg, ocher or barite) is made in the interior of the bullet body 20 . By doing so, it may be a combination of one or more of various devices that can be decomposed in a natural state without the need to recover the product after use on land or sea, thereby preventing environmental pollution.

1 is a perspective view showing the configuration of a practice grenade 10 according to various embodiments of the present invention, and FIG. 2 is a side cross-sectional view showing the coupling state of the practice grenade 10 according to various embodiments of the present invention, FIG. is an enlarged cross-sectional side view of part A of FIG. 2, showing the first coating agent formed on the branch tube 30 of the exercise grenade 10, and FIG. 4 is the configuration of the exercise grenade 10 according to various embodiments of the present invention. It is a side cross-sectional view showing the middle fuse assembly 60, and FIG. 5 is an enlarged side cross-sectional view of part B of FIG. 4, showing the second coating agent formed in the binge paper tube 68 of the fuse assembly 60.

1 to 5 , the exercise grenade 10 may include a bullet 20 , a paper tube 30 , a filler 40 , a finishing pad 50 , and a fuse assembly 60 . For example, the paper tube 30 may be disposed on the outside of the bullet body 20 and may be made of paper material so that it can be decomposed in a natural state. For example, the paper tube 30 may include kraft paper made of paper. In this embodiment, the paper tube 30 is described as an example of kraft paper, but is not limited thereto. For example, the paper tube 30 may be variously applied as long as it is a paper material that can be decomposed in a natural state.

The filler 40 may be filled in the carbon body 20 . For example, the filler 40 may include at least one of loess or barite. If the filler 40 is an eco-friendly material, materials other than the aforementioned loess or barite may be applied. In this embodiment, the filler 40 will be described by applying loess.

For example, the filler 40 containing loess is filled with the inside of the bullet 20 and at the same time has a sense of weight through the loess, and even if an explosion occurs after throwing, it is to be prevented from being damaged due to fragments fatal to the user. can The filler 40 not only doubles the explosive effect through loess dust scattered when the practice grenade 10 is thrown from land or sea and then explodes, but also naturally disappears and can be decomposed in a natural state.

A first coating agent 70 may be applied to the outer surface of the paper tube 30 to waterproof the bullet body 20 . For example, the first coating agent 70 may include a water-based paint to be decomposed on land or sea.

The finishing pad 50 may close the opening 21 formed on the front surface of the bullet body. For example, the finishing pad 50 may close the opening 21 after filling the filler 40 in the inside of the bullet through the opening 21 .

The fuse assembly 60 may be coupled to the finishing pad 50 . For example, the fuse assembly 60 may be coupled through the finishing pad 50 to be disposed inside the bullet body 20 .

An adapter assembly 80 may be coupled to the upper portion of the fuse assembly 60 . For example, the adapter assembly 80 includes an adapter 81 coupled to the finishing pad 50, a ball 82 having one side elastically supported by a ball spring 83 to the adapter 81, and the ball It may be composed of a safety pin 84 that is configured not to hit the ball 82 by the spring 83 and a safety handle 85 that is gripped by the user's palm.

The fuse assembly 60 includes a fuse cartridge 61 screwed to the adapter 81, a primer 62 disposed on the uppermost end of the fuse cartridge 61, and disposed on the lower surface of the primer 62. At the same time, the retarder 63 disposed inside the fuse cartridge 61, the ignition agent 64 disposed on the lower surface of the retarder 63, and the ignition agent 64 disposed on the lower surface, It may be composed of an binge agent 65 for generating a smoke and a smoke absorbing agent 66 disposed on the lower surface of the binge agent 65 and generating a smoke film.

According to various embodiments, an binge paper tube 68 made of a paper material in which the smoke agent 65 and the smoke agent 66 are embedded may be disposed in the fuse assembly 60 . For example, both ends of the binge drinking paper tube 68 may form an opening, and the binge drinking agent 65 and the smoke film 66 may be built in the binge drinking paper tube 68 . In this state, the opening of one end of the heavy-duty paper tube 68 may be coupled to the lower surface of the ignition agent 64 disposed on the fuse assembly 60 , and the opening of the tile end of the heavy-duty paper tube 68 . may be coupled to the stopper 67 to close the binge paper tube 68 .

According to various embodiments, the outer surface of the binge paper tube 68 is a second coating agent 90 to implement the chemical resistance, water resistance, waterproofness and stain resistance of the binge agent 65 and the smoke film 66 . may include

For example, the second coating agent 90 may be prepared by first mixing an adhesive (eg, epoxy) and a curing agent in a ratio of 100:25, followed by secondary mixing of a red pigment and a diluent. For example, the second coating agent 90 is prepared by mixing in a ratio of 100 (eg, adhesive):25 (eg, curing agent) in the first mixing, and then in the second mixing, the red pigment is mixed at 1 to 2 g, , The diluent can be prepared by mixing 0.01 ~ 0.05g.

The second coating agent 90 prepared in this way is first coated on the outer surface of the binge paper tube 68 and then dried first at 65° C. for 3 hours to form a first coating 91, and then After the secondary coating of the second coating agent 90 on the outer surface of the first coating 91, the second coating 92 may be formed by drying the second coating agent 90 at 50° C. for 24 hours. Accordingly, the first and second coatings 91 and 92 are double formed on the outer surface of the binge paper tube 68, so that the binge paper tube 68 is formed with the first and second coating materials 91 and 92 ) can implement chemical resistance, water resistance, waterproofness and moisture resistance, and protect the binge agent 65 and the smoke agent 66 from contaminants, as well as the binge agent 65 and the smoke agent ( 66) can be stored for a long time.

According to various embodiments, a safety clip may be disposed around the outer periphery of the bullet body 20 to secure the safety handle to the outside of the bullet body 20 . Therefore, when the user inadvertently drops the bullet to the floor, the safety handle and the safety pin can be prevented from being separated from the bullet by the safety clip.

In this state, when throwing the practice grenade 10 into land or sea, the user holds the bullet body 20 and the safety handle 85 with one hand and the safety pin 84 and the safety clip with the other hand ( After removing C1), the practice grenade 10 can be thrown.

And, since the thrown exercise grenade 10 loses the force applied to the safety handle 85, the ball 82 strikes the primer 62 in the fuse assembly 60 by the elastic force of the ball spring 83. will do

Next, the primer 62 may be detonated and ignited by the striking force applied from the ball, and then may lead to ignition of the retardant 63 . At this time, the retarder 63 allows the detonation of the detonator 62 to be delivered after a certain period of time rather than directly to the binge agent 65, so that the practice grenade 10 can be thrown from a place to be thrown or from a long distance as in actual combat. can make it explode.

And, when the binge agent 65 is ignited by the igniter 64 and explodes, the explosive power of the binge agent 65 is transmitted to the bullet 20 through the fuse cartridge 61, and at this time, the bullet At 20, a visual effect appears as if the grenade 10 actually exploded as the smoke agent explodes together with the filler, thereby creating an atmosphere similar to the actual battle situation.

At this time, as for the exercise grenade 10, the projectile 20 is exploded by the detonation of the explosive agent 65, and the filler 40 filled in the inside of the projectile 20 is scattered and falls into the water of the land or the sea. In addition, the filler 40 can further maximize the smoke effect of the smoke film 66 . For example, since the filler 40 contains loess, the smoke film 66 may express a yellow smoke film that can be visually identified by the loess.

According to various embodiments, at least two discharge holes 51 may be formed in the finishing pad 50 for discharging the explosive sound and the smoke film generated from the binge agent 65 and the smoke film 66 . For example, the at least one release hole 51 may release the explosive sound of the explosive agent 65 and the smoke film of the smoke agent 66 generated inside the projectile 20 toward the front of the projectile 20 . can Accordingly, the at least two or more emission holes 51 may further improve the smoke effect of the smoke agent 65 and the smoke effect of the smoke agent 66 .

According to various embodiments, the filler 40 may include a U-shaped filler. For example, the open portion of the U-shaped filler may be disposed toward the at least two or more discharge holes 51 . Such a U-shaped filler can easily guide the explosive sound of the explosive agent 65 and the smoke film of the smoke agent 66 to the at least two discharge holes 51 when the bullet 20 is exploded. Accordingly, the U-shaped filler may further improve the binge effect of the blasting agent 65 and the smoke effect of the smoke absorbing agent 66 similarly.

In addition, by forming a space A1 spaced apart and at a regular interval between the U-shaped filler and the fuse assembly 60, the space A1 is a binge agent 65 when the bullet 20 explodes. An explosion space and a smoke film space may be formed to easily generate the explosion of the smoke and the smoke film of the smoke film agent 66 .

In addition, in a state where the user's hand (not shown) holds the side of the projectile 20 , when the projectile 20 explodes, the explosive sound of the explosive agent 65 and the smoke film of the smoke agent 66 are at least It is possible to prevent damage that may occur in the user's hand by being discharged to the front of the bullet 20 through two or more discharge holes 51 .

For example, at least two or more discharge holes 51 formed in the U-shaped eco-friendly filler 40 and the finishing pad of the carbon body 20 filled in the bullet body 20 are high-low pressure parts in the bullet body 20 . It can be manufactured in a system structure, and the U-shaped eco-friendly filler 40 and at least two or more ejection holes 51 manufactured in this way are formed when the projectile 20 explodes (eg, at the time of circular destruction and inter-gripping) the projectile. Not only does the damage of (20) not occur, but also it is possible to prevent the occurrence of damage to the human body.

In this way, the paper tube 30 made of paper material is disposed on the outside of the carbon body 20 , and an eco-friendly filler 40 (eg, ocher or barite) is filled in the carbon body 20 , and the carbon body 20 . By configuring the explosive paper tube 68 made of paper material for embedding the smoke agent 65 and the smoke agent 66 of the fuse assembly 60 in the interior of the 20, the bullet body 20 is transferred to the land. It can be decomposed in a natural state without the need to recover the shell 20 after use in the sea, thereby preventing environmental pollution that may occur on land or in the sea. Accordingly, the projectile 20 can be used not only in the land army, but also in the sea navy.

The practice grenade of various embodiments of the present invention described above is not limited by the above-described embodiments and drawings, and it is common in the technical field to which the present invention pertains that various substitutions, modifications and changes are possible within the technical scope of the present invention. It will be clear to those who have the knowledge of

10: practice grenade 20: bullet body
30: paper tube 40: filler
50: finishing pad 60: fuse assembly
70: first coating agent 80: adapter binder
90: second coating agent
A1: space

Claims (9)

In the practice grenade,
The outside of the bullet body is composed of a paper tube made of paper material,
The inside of the bullet is filled with a filler,
The filler includes at least one of ocher or barite,
a finishing pad for closing the opening formed on the front surface of the bullet; and
It further includes; a fuse assembly coupled to the finishing pad and arranged with a binge agent and a smoke agent;
In the fuse assembly, an binge paper tube made of a paper material containing the binge agent and the smoke agent is disposed,
At least two or more emission holes are formed in the finishing pad for discharging the explosive sound and the smoke film generated from the binge agent and the smoke agent,
The filler includes a U-shaped filler,
The open portion of the U-shaped filler is disposed toward the at least two or more discharge holes,
An exercise grenade, characterized in that a space is formed between the U-shaped filler and the fuse assembly while being spaced apart from each other.
The practice grenade according to claim 1, wherein the outer surface of the paper tube is coated with a first coating agent to waterproof and moisture-proof the bullet.
The exercise grenade according to claim 2, wherein the first coating agent comprises a water-based paint.
delete delete delete In the practice grenade,
The outside of the bullet body is composed of a paper tube made of paper material,
The inside of the bullet is filled with a filler,
The filler includes at least one of ocher or barite,
a finishing pad for closing the opening formed on the front surface of the bullet; and
It further includes; a fuse assembly coupled to the finishing pad and arranged with a binge agent and a smoke agent;
An binge paper tube made of a paper material containing the binge and the smoke agent is disposed in the fuse assembly,
An outer surface of the binge paper tube is coated with a second coating agent for chemical resistance, water resistance, waterproofness and contamination resistance of the binge agent and the smoke film.
The practice grenade according to claim 7, wherein the second coating agent is prepared by first mixing an adhesive and a curing agent in a ratio of 100:25, followed by a secondary mixing of a red pigment and a diluent.
The method of claim 8, wherein the first coating is formed by first coating the second coating agent on the outer surface of the binge paper tube and then drying the first coating agent at 65° C. for 3 hours,
The practice grenade, characterized in that after the second coating is secondarily coated on the outer surface of the first coating, the second coating is formed by second drying at 50° C. for 24 hours.

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