KR20150117006A - A body for practice hand grenade with improved stability and a process for the same - Google Patents

Abstract

The present invention relates to an environmental practice hand grenade with a grenade body having an integrated structure without a separate filling space in the body wherein a fuse body made from biodegradable resin is coupled with an upper part of the body by a screw. The grenade body is made of mineral matters having barite, tungsten, silica, and red clay so that the grenade body is naturally dissolved.

Description

Technical Field [0001] The present invention relates to a grenade body and a method for manufacturing the grenade,

More particularly, the present invention relates to an eco-friendly grenade for training, in which the grenade body is made of an eco-friendly material capable of spontaneous decomposition, will be.

Generally, a grenade refers to a small bomb for close combat to kill or destroy weapons in close combat with an enemy. The grenade is made relatively light so that it can be picked up by a hand, It consists of a fuse for igniting the explosive charged in the body and body, and the fuse is composed of a safety collar, safety creep and safety handle.

The types of grenades are classified according to the purpose of use, such as commercial grenades, attack grenades for destroying weapons, gas grenades for reducing enemy power, and smoke grenades for signals. Such grenades have a considerable explosive power It is necessary to learn sufficient usage method and safety precautions in advance because it can damage not only oneself but also friend by carelessness of user having.

Therefore, in practice, rather than in actual combat situations, the training grenades with relatively small explosive force are trained. These grenades were made of metallic material, and the training grenades were recovered and reused after use.

FIG. 1 is a cross-sectional view of the conventional training grenade according to the related art. As shown in FIG. 1, the body 2 of the conventional art is made of synthetic rubber and is screwed to the upper body 1, A filling member 5 made of iron powder and various inorganic substances is filled in the inside of the body 1 in order to match the weight with the room-use grenade. Reference numeral 6 denotes a ball, 7 denotes a safety pin, and 8 denotes an ignition primer.

However, if such a training grenade is not recovered after use, the body and the new tube can be discharged to the outside and can be used as pseudo explosives. If the grenade is not recovered, it can not be easily disassembled, .

The present invention has been proposed in order to overcome the problems of the prior art described above and it is possible to manufacture the su Ryule as an eco-friendly material that can be decomposed by nature so that it is not necessary to collect the residue after the grenade training, The purpose is to prevent contamination.

Still another object of the present invention is to improve the working efficiency by forming the grenade body as an integral structure without dividing the grenade body into a body and a filler.

The present invention relates to a grenade body in which a body of a biodegradable resin tube is threadedly coupled to an upper part of the grenade body. The grenade body has an integral structure without a separate filling space therein. , And yellow ocher. The present invention provides an eco-friendly grenade for training.

As described above, since the grenade body of the present invention is made of minerals that can be spontaneously decomposed rapidly, it is not necessary to recover the fragments after the grenade throwing training, so that a large number of people can be trained in a short time Effect.

In addition, the use of eco-friendly materials can be used without concern for environmental pollution, and because the material is made of mineral material, explosion spraying and blowing effect are excellent when exploded, and the user's injury caused by debris can be minimized There is an effect.

In addition, even if an integral structure in which a separate filling material is not filled is formed inside, it is possible to adjust the same weight as that of the actual grenade so that the manufacturing process can be reduced, thereby improving the productivity and significantly reducing the manufacturing cost of the training grenade So that the use cost can be reduced.

Fig. 1 is a cross-sectional structural view of a conventional practice grenade.

The object of the present invention is to provide a grenade body in which a body of a biodegradable resin is screwed on an upper part of the grenade body, which has an integral structure with no separate filling space therein, Which is characterized in that the grenade is composed of minerals including earth, sand, and loess, and a method for manufacturing the grenade.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. 2 to 4 attached hereto.

2 and 3, a cartridge 15 having an ignition tube 14 therein is mounted, a retarder 13 is filled in the cartridge 15, 3 is a cross-sectional view of the grenade body 10 to which the new tube body 12 is screwed, in which a separate filling material is to be filled, It does not have a single-sided cross-sectional structure.

Particularly, the grenade body 10 of the present invention is composed of a mineral mixture such as barite, feldspar, silica sand, loess and the like. The mixing amount of each raw material is 80 to 90% by weight of barite, 5 to 10% 0.1 to 0.5% by weight, and 2 to 3% by weight of loess. Since the specific gravity of the mixed raw materials, particularly the barite and the talc, is 4 or more and is much higher than the specific gravity of the ordinary grains (1.45 on average), the gravity similar to that of the actual grenades can be achieved without increasing the size of the body 10.

On the other hand, the body 12 of the present invention is a body made of a mixture of polycaprolactone (PCL) or polybutylene succinate (PBS) and a biodegradable starch (corn starch or potato starch) mixed with minerals such as talc, A threaded groove 18 is formed along the periphery of the stop for assembling with the hand grenade body 10 and a safety collar 17 and a safety creep 19 are provided at an upper portion thereof, The handle 20 is constituted.

Claims (1)

The body of the grenade, which is made of biodegradable resin, is screwed on the upper part of the grenade body. The grenade body has an integral structure that does not have a separate filling space therein. The grenade body is made of barite, Wherein the grenade is made of a minerals including a grenade.

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