KR200335985Y1 - Hand grenade for nature friendly practice - Google Patents

Abstract

The present invention relates to an environmentally friendly practice hand grenade, which can be extinguished in nature without the need for recovery after use of the hand grenade made of mineral body and fuse made of biodegradable starch.

The present invention for realizing this, the grenade body 10 and the screw groove 10a of the grenade body 10, which is filled with a mineral 16 therein and a screw groove 10a is formed on the upper part, and fastening In the practice hand grenade consisting of a fuse body 20 is formed with a screw portion 20a to be: The grenade body 10 is made of minerals such as silica sand and loess, the fuse body 20 is biodegradable It is characterized in that it is made of starch.

Description

HAND GRENADE FOR NATURE FRIENDLY PRACTICE}

The present invention relates to an environmentally friendly practice grenade, and more specifically, to practice the grenade made of a mineral material and the fuse made of biodegradable starch so that it can be extinguished in the natural state without the need to recover after use.

Grenade is a small bomb for melee combat that kills or destroys an enemy or weapon in close combat with an enemy, and is made relatively light so that a person can pick it up by hand. It consists of a fuse to ignite the explosives charged in the body, and the fuse consists of a safety loop, a safety creep, and a safety handle.

The types of grenades are classified into subdivision grenades for personnel killing, attack grenades for weapon destruction, gas grenades for lowering enemy power, smoke grenades for signaling, and such grenades. It is necessary to learn enough usage and safety rules in advance as it can damage itself and allies by carelessness of the user.

Therefore, when training is not a real combat situation, the training grenade is trained with a relatively small explosive grenade, and the grenade is made of a metallic material with a body and fuse, and the grenade is collected and reused after use.

However, if the practice grenade is not recovered after use, the body and fuse are leaked to the outside to be converted into a similar explosive, as well as to destroy the natural environment if not recovered.

In addition, the terrain of the training site is diverse, and other objects or weeds require considerable time and manpower to recover the grenade body and fuse after training, and the training bottle is always burdened with the need to recover the training grenade, thereby reducing the training effect. There is always a risk of losing the used hand grenade.

The present invention has been devised to improve the above problems in the prior art, by making the body and fuse of the practice grenade made of mineral material and biodegradable starch so as to be naturally lost after the use of the practice grenade without the need for recovery.

1 is an exploded perspective view showing the configuration for the eco-friendly practice grenade of the present invention.

Figure 2 is a cross-sectional view for showing the configuration for the eco-friendly practice grenade invented.

Figure 3 is a process for showing the manufacturing method for the eco-friendly practice grenade of the present invention.

<Explanation of symbols for the main parts of the drawings>

1: Grenade for practice 10: Grenade body

10a: thread groove 16: mineral

20: fuse body 20a: screw portion

22: detonator tube 24: safety ring 26: safety creep 28: safety handle 29: safety pin

The object is, the grenade body is made of a mineral inside and the fuse coupling portion is formed on the upper side, and the fuse body coupled to the fuse coupling portion of the grenade body is provided with a safety ring and a safety crepe to the upper side and a safety handle on one side. In the lower side, the grenade for practice in which the threaded portion and the detonator for coupling with the grenade body is formed and coupled,

The grenade body is made of silica, loess, straw, natural hemp fiber material that can be naturally decomposed after throwing, and the fuse body may be made of biodegradable starch.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIGS. 1 to 2, the practice grenade 1 of the present embodiment has a general structure consisting of a combination of the grenade body 10 and the fuse body 20. The grenade body 10 to be filled is made of a mineral material in which silica sand and loess are mixed at a certain ratio as a main material, and in addition to the mineral component, straw and natural hemp fibers are added to increase the binding force between the mineral components. The fuse body 20 is made of a mixture of biodegradable starch (corn starch, potato starch) and synthetic resin to enable natural decomposition. The starch component and PP (Poly Propylene) Preferably, the ratio is 3: 7. The lower portion of the fuse body 20 is coupled with an initiator tube 22 filled with an ignition agent and a retardant therein, and a safety portion at the upper portion thereof. Lee 24, the safety creep 26, the safety handle 28 and the safety pin 29 is composed of a conventional blow-type fuse structure in which the sinking not shown is to operate by hitting the primer. A screw portion 20a is formed at the lower portion of the fuse body 20, and a screw groove 10a corresponding to the screw portion 20a is formed at the upper portion of the grenade body 10, thereby enabling mutual screw connection. You can see that it is achieved.

Let us look at the manufacturing method and operation state for the eco-friendly practice grenade which is the present invention that constitutes such a configuration.

The components constituting the grenade body 10 of the grenade body for training 1 are mineral materials, mainly composed of silica sand and loess, and the fuse body 20 is composed of biodegradable starch (corn, potato).

Looking at the grenade body 10 manufacturing method of the practice grenade (1) with reference to Figure 3 as follows, the raw material supply step (ST2) is made to supply the silica sand and loess to the stirrer, the raw material supplied uniform The stirring step (ST2) for stirring at a ratio is made in the stirrer, and the primary processing for producing in the shape of the grenade body 10 by combining with natural hemp fibers and straw to the raw material stirred by the stirring step (ST2) A step ST3 is performed, and a heat treatment step ST4 is performed to impart rigidity to the grenade body 10 formed by the primary processing step ST3, and is rigid by the heat treatment step ST4. A secondary processing step (ST5) is formed to form a screw groove (10a) in order to assemble the fuse body 20 to the grenade body 10 is provided, the grenade body made from the secondary processing step (ST5) Separate to 10 Fuse assembly step (ST6) is made to assemble the fuse body 20 is made of biodegradable starch material, it is made of the practice grenade (1) through the packaging step (ST7) is to be delivered to use.

Here, the heat treatment step (ST4) is to give a stiffness to the grenade body 10 in order to increase the explosion strength and prevent damage during assembly and normal distribution and storage.

The practice grenade produced by such a manufacturing method, since the grenade body 10 is made of silica sand and loess, not only can the material be easily obtained but also have the same weight and shape as the practice grenade or the actual grenade made of metal. Being made to be able to train like a practice.

In addition, since the overall material of the practice grenade 1 is made of a naturally degradable mineral (grenade body) and biodegradable starch material (fuse body), it can be used without the need to recover the practice grenade after use.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the eco-friendly practice hand grenade of the present invention may be variously modified and implemented by those skilled in the art.

As an example, in the embodiment of the present invention, the grenade body is made of a mineral that is a mixture of silica sand and loess, and the fuse body is made of biodegradable starch, but this may be made of other naturally degradable and naturally friendly materials. Would be applicable.

Therefore, these modified embodiments should not be individually understood from the technical spirit or prospect of the present invention, and the modified embodiments should fall within the appended utility model registration claims of the present invention.

As described above, according to the present invention, since the grenade body and the fuse body are made of naturally decomposable mineral and biodegradable starch, it is not necessary to recover the grenade after use, so that a large number of personnel can be trained in a short time. It is possible to maximize the training effect and use environmentally friendly materials so that it can be used without fear of environmental pollution. Also, since the material is mineral material, it has excellent explosion spray and explosion effect during explosion, and it can be used by the user. The effect is to minimize injury.

In addition, the manufacturing cost of the grenade for practice can be significantly lowered, so that the use cost is low, and there is no need for recovery, thereby creating a variety of training environments, as well as causing a higher training effect to the trainer or the training operator. .

Claims (3)

The safety ring 24, the safety creep 26, and the safety handle 28 is coupled to the upper side, and the screw portion 20a for screwing with the grenade body 10 to the lower side to which the detonation tube 22 is coupled. In the general practice grenade (1) consisting of a fuse body (20) in which a) is formed, and a grenade body (10) in which the fuse body (20) is screwed together at an upper portion thereof, The grenade body 10 is an eco-friendly practice hand grenade, characterized in that the screw groove (10a) corresponding to the screw portion (20a) is formed on the top, consisting of minerals of silica and ocher particles that can be naturally decomposed after use. The method of claim 1, Grenade body 10 is a material for the environmentally friendly practice grenade, characterized in that the addition of straw and natural hemp fiber to improve the binding force between particles in addition to the mineral. The method of claim 1, The fuse body 20 is an eco-friendly practice hand grenade, characterized in that it comprises a biodegradable starch.