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JP4101642B2 - Bullet landing gear - Google Patents

Bullet landing gear Download PDF

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Publication number
JP4101642B2
JP4101642B2 JP2002377773A JP2002377773A JP4101642B2 JP 4101642 B2 JP4101642 B2 JP 4101642B2 JP 2002377773 A JP2002377773 A JP 2002377773A JP 2002377773 A JP2002377773 A JP 2002377773A JP 4101642 B2 JP4101642 B2 JP 4101642B2
Authority
JP
Japan
Prior art keywords
bullet
rubber
receiving body
gel material
impact receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2002377773A
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Japanese (ja)
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JP2004205173A (en
Inventor
信康 生駒
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibata Industrial Co Ltd
Original Assignee
Shibata Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shibata Industrial Co Ltd filed Critical Shibata Industrial Co Ltd
Priority to JP2002377773A priority Critical patent/JP4101642B2/en
Publication of JP2004205173A publication Critical patent/JP2004205173A/en
Application granted granted Critical
Publication of JP4101642B2 publication Critical patent/JP4101642B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41JTARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J13/00Bullet catchers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、ピストル射撃、ライフル射撃等の射撃場における銃弾着弾装置に関する。
【0002】
【従来の技術】
各種射撃に用いられる銃弾の標的の後方や標的を直接取り付ける着弾場所は、砂や土で築山を構築したり、地山を利用したりして銃弾の飛散を防ぐようにしている。
また、このような射撃訓練や射撃練習に使用される銃弾の量は非常に大量である。
【0003】
【発明が解決しようとする課題】
このような従来技術によると、銃弾は、築山等に食い込んだり周辺に飛散したりして原形を止めない程変形してしまい、原型のままの形状で回収することは困難であり、そのまま再利用することができるような回収作業は行われず、金属くずとして処理される。しかも、飛散したくずは散失してしまう量が多く、全ての回収は困難である。
【0004】
【課題を解決するための手段】
そこで本発明は、袋体内に、十分な厚さのゲル材としての未加硫ゴム(以下ゴムゲルという。)を収納して受衝体とし、この受衝体を標的の背後に配置したことを特徴とする。
ここで使用するゴムゲルは、天然ゴムを溶媒抽出したときに残存する不溶性の超高分子の物質に沸点の高い油性材、難燃材、補強材更に必要に応じて、補強用の繊維チップ等を混入して三次元的に架橋した物質等であり、分子量が大きく、かつ液状体性質であり、混入具合によっては塑性変形可能なものとすることができる。
【0005】
ゴムゲルは、上記の如く、天然ゴムが望ましいが、使用条件に応じて架橋反応していない合成ゴムでもよい。
このようにこれらのゴムゲルを含めてゲル材とは、常温で高粘度の液状体であり、分子間引力等により非流動化した材料であればどのような材料でもよく、合成樹脂やそれらとゴムとの複合材等でもよい。
【0006】
そのために、弾丸が貫入し場合に、自己修復性を有し、弾丸が捕捉された貫通穴を消失させ、常に充実した状態を保つことができる。
しかも、捕捉した銃弾のゲル材との比重差により、下方に沈下し、まとめて取り出すことが可能となる。
さらに、捕捉した銃弾は壊れずに原形のままであり、再使用が可能な状態で捕捉することができるものである。
【0007】
【発明の実施の形態】
以下に本発明の実施の形態例を図面を用いて説明する。
図1は断面説明図である。
図において、1は所定形状の袋体2内に弾性がないかもしくは非常に小さく塑性変形をする材料であるゲル材3を収納した受衝体であり、銃弾を捕捉するに十分な厚さ(奥行き)を有している。ゲル材3は液状体性質を有するために長時間にわたって一定の形状を保ことができず、そのために所定形状の袋体2内に収納して所定の形状とするものある。この袋体は、天然繊維や合成繊維製の布体や合成樹脂シート製やゴム製等である。
【0008】
上記受衝体1は重量物であるために、図示する如く、台車4に載せておくとよい。
5は上記受衝体1を収納する構造体であり、金属製、コンクリート製、木製、合成樹脂材製等どのような材料による構造体でもよく、前面に開口6が設けてあり、その開口6から上記受衝体1の出し入れができると共に受衝体1の表面によって塞がれるようになる。
【0009】
7は上記開口6を覆うように設けた高伸度ゴムによるカバーである。
以上によって銃弾着弾装置が構成され、この前方に図示しない標的が設置される。
また、図2に示す如く、構造体5を後方を下げて傾けて設置しても同様である。このように後方に傾けることにより、自重による前垂れの変形を防止することができる。
【0010】
なお、上記の如く、受衝体1は必ずしも台車4に載せておかなくてもよく、図3に示す如く、床面に直接もしくは床面に置いた台の上に載せて設置してもよい。これは上記の水平状態に設置するときも同様である。
11は必要に応じて取り付けたウインチ等の搬入、搬出用の設備である。
このような構成によると、発射された銃弾は、カバー7を突き抜けて無傷の状態で受衝体1で捕捉される。
【0011】
その際、カバー7は高伸度ゴムによるために、図4に示す如く、銃弾の貫通穴は元の状態に復元するために極度に小さくなる。
受衝体1に捕捉された銃弾は、ゲル材との比重差により、時間をかけて下方に沈下する。
ある程度の銃弾が下部にたまったら、台車4を構造体5から引出し、袋体2を外してゲル材3の下部を切断し、その切断分だけ新たなゲル材3を上に加えて再び袋体2で覆って構造体5内に収納する。
【0012】
切断されたゲル材3には、たまった多数の銃弾が入っており、それらを抜き出し、その銃弾およびゲル材3は再使用される。
上記ゲル材3はその粘度は自由であり、あまり低粘度であると、銃弾を止める作用が弱くなるために厚さとの関係で粘度を定める、したがって、捕捉した銃弾が沈下しないような粘度でもよい。その場合には、銃弾はほぼ同じような奥行きの箇所に集中して停止して捕捉されていることになり、その層を縦方向もしくは横方向に切断して取り出せばよい。
【0013】
さらには、全体が一定の粘度ではなく、奥行き方向に向けて粘度を変えてもよい。例えば、図5に示す如く、縦方向に2分割して前部を高粘度とし、後部を低粘度としてもよく、また、無段階に粘度を変化させてもよい。
なお、ゲル材3は上記の如く、同程度の塑性変形をする性質を有する合成樹脂、合成ゴム等でもまったく同様に使用することができ、本発明ではそれらを含めてゲル材と表現する。
【0014】
また、上記構成において、袋体2は必ずしも上記のような構成でなくてもよく、図6に示す如く、袋体2の全体もしくは少なくとも前面側を高伸度ゴムで構成してもよい。その場合には開口6のカバー7は不要となる。
図において、8は跳弾防止材であり、ゴム単体でもよいが、ゴムや合成樹脂の中に天然繊維、合成繊維、金属繊維もしくはこれらの混合繊維の織布もしくは不織布を互層積層状態に埋設した複合材9と表面材のゴム10とよりなる材料でできていると、銃弾の衝撃力の減少とエネルギーの吸収をはかって耐久性を向上させることができ、しかも表面材で銃弾を停止させることができる。
【0015】
なお、上記の説明は陸上における射撃場として説明を行ったが、船舶上(内)に構成しても同様である。
【0016】
【発明の効果】
以上詳細に説明した本発明によると、袋体内に十分な厚さのゲル材を収納して受衝体とし、この受衝体を標的の背後に配置したことにより、発射された銃弾は、無傷の状態で受衝体で捕捉され、それを取り出すことにより再利用が可能であり、また、銃弾を除いたゲル材も際利用が可能であるという効果を有する。
【図面の簡単な説明】
【図1】実施の形態例の断面説明図
【図2】他の形状の断面説明図
【図3】台車を用いないで設置した状態の説明図
【図4】カバーの説明図
【図5】ゴムゲルの説明図
【図6】他の袋体の説明図
【符号の説明】
1 受衝体
2 袋体
3 ゲル材
4 台車
5 構造体
6 開口
7 カバー
8 跳弾防止材
9 複合材
10 ゴム
11 ウインチ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bullet landing apparatus in a shooting range such as pistol shooting or rifle shooting.
[0002]
[Prior art]
As for the landing place where the target of the bullet used for various shootings and the target is directly attached, the construction of the mountain is made of sand or soil, or the ground is used to prevent the bullets from being scattered.
Also, the amount of bullets used for such shooting training and shooting practice is very large.
[0003]
[Problems to be solved by the invention]
According to such conventional technology, the bullets have been deformed to the extent that they cannot stop the original shape by biting into a mountain or the like and scattered around the area, and it is difficult to recover the original shape and reuse it as it is. The recovery operation that can be performed is not performed, and is processed as metal scrap. Moreover, the amount of scattered litter is often lost, and it is difficult to collect all the litter.
[0004]
[Means for Solving the Problems]
Therefore, the present invention is to store unvulcanized rubber (hereinafter referred to as rubber gel) as a gel material having a sufficient thickness in a bag body as an impact body, and to place the impact body behind the target. Features.
The rubber gel used here is composed of an insoluble ultra-high molecular substance remaining after solvent extraction of natural rubber, an oily material having a high boiling point, a flame retardant, a reinforcing material, and, if necessary, a reinforcing fiber chip. It is a substance that is mixed and three-dimensionally cross-linked, has a high molecular weight, is a liquid material, and can be plastically deformed depending on the mixing condition.
[0005]
The rubber gel is desirably natural rubber as described above, but may be synthetic rubber that has not undergone a cross-linking reaction depending on use conditions.
As described above, the gel material including these rubber gels is a liquid material having a high viscosity at room temperature, and any material can be used as long as it is non-fluidized by intermolecular attractive force or the like. A composite material or the like may be used.
[0006]
Therefore, when a bullet penetrates, it has a self-repairing property, and the through hole in which the bullet is captured disappears, so that it can be kept in a full state at all times.
Moreover, due to the difference in specific gravity between the captured bullet and the gel material, it can sink downward and be taken out collectively.
Further, the captured bullet remains intact and can be captured in a reusable state.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional explanatory view.
In the figure, reference numeral 1 denotes an impact receiving body containing a gel material 3 which is a material that is not elastic or very plastically deformed in a bag 2 of a predetermined shape, and has a thickness sufficient to capture a bullet ( Depth). Since the gel material 3 has a liquid property, it cannot maintain a constant shape for a long time. For this reason, the gel material 3 is stored in a bag body 2 having a predetermined shape to have a predetermined shape. This bag is made of natural fiber or synthetic fiber, synthetic resin sheet, rubber, or the like.
[0008]
Since the impact receiving body 1 is heavy, it may be placed on the carriage 4 as shown in the figure.
Reference numeral 5 denotes a structure for housing the receiving body 1, which may be a structure made of any material such as metal, concrete, wood, or synthetic resin, and has an opening 6 on the front surface. Thus, the receiving body 1 can be taken in and out and is blocked by the surface of the receiving body 1.
[0009]
Reference numeral 7 denotes a cover made of high elongation rubber provided so as to cover the opening 6.
The bullet landing device is configured as described above, and a target (not shown) is installed in front of the bullet landing device.
Further, as shown in FIG. 2, the structure 5 can be similarly installed by tilting the rear side downward. By tilting backward as described above, it is possible to prevent the forward drooping deformation due to its own weight.
[0010]
As described above, the impact receiving body 1 does not necessarily have to be placed on the carriage 4 and may be placed directly on the floor or placed on a base placed on the floor as shown in FIG. . The same applies to the installation in the above horizontal state.
Reference numeral 11 denotes a facility for carrying in / out a winch or the like attached as necessary.
According to such a configuration, the fired bullet passes through the cover 7 and is captured by the impactor 1 in an intact state.
[0011]
At that time, since the cover 7 is made of high-stretch rubber, the bullet hole is extremely small to restore the original state as shown in FIG.
The bullet captured by the impactor 1 sinks downward over time due to the difference in specific gravity with the gel material.
When a certain amount of bullets accumulates in the lower part, the carriage 4 is pulled out from the structure 5, the bag 2 is removed, the lower part of the gel material 3 is cut, and the new gel material 3 is added to the upper part by the amount of the cut, and the bag is again 2 and housed in the structure 5.
[0012]
The cut gel material 3 contains a large number of bullets, and these bullets and the gel material 3 are reused.
The viscosity of the gel material 3 is free. If the viscosity is too low, the action of stopping the bullet is weakened so that the viscosity is determined in relation to the thickness. Therefore, the viscosity may be such that the captured bullet does not sink. . In that case, the bullets are concentrated and stopped at almost the same depth, and the layer may be cut and taken out in the vertical or horizontal direction.
[0013]
Further, the viscosity may be changed in the depth direction instead of the constant viscosity as a whole. For example, as shown in FIG. 5, the front part may be divided into two in the longitudinal direction to have a high viscosity, the rear part may have a low viscosity, and the viscosity may be changed steplessly.
As described above, the gel material 3 can be used in the same manner even with a synthetic resin, a synthetic rubber or the like having the same plastic deformation property as described above. In the present invention, these are expressed as a gel material.
[0014]
Moreover, in the said structure, the bag body 2 does not necessarily need to be the above structures, and as shown in FIG. 6, the whole bag body 2 or at least the front side may be comprised with high elongation rubber. In that case, the cover 7 of the opening 6 becomes unnecessary.
In the figure, reference numeral 8 denotes an anti-bounce material, which may be a single rubber, but is a composite in which natural fibers, synthetic fibers, metal fibers, or woven or non-woven fabrics of these mixed fibers are embedded in a laminated state in rubber or synthetic resin. If it is made of a material consisting of the material 9 and the rubber 10 of the surface material, it is possible to improve the durability by reducing the impact force of the bullet and absorbing the energy, and to stop the bullet with the surface material. it can.
[0015]
In addition, although said description demonstrated as a shooting range on land, it is the same even if comprised on a ship (inside).
[0016]
【The invention's effect】
According to the present invention described in detail above, a sufficiently thick gel material is accommodated in the bag body as an impact receiving body, and this impact receiving body is arranged behind the target, so that the fired bullets are intact. In this state, it is captured by the impactor and can be reused by taking it out, and the gel material excluding bullets can also be used.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view of an embodiment. FIG. 2 is a cross-sectional explanatory view of another shape. FIG. 3 is an explanatory view of a state where the vehicle is installed without using a carriage. Illustration of rubber gel [Fig. 6] Illustration of other bags [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Receiving body 2 Bag body 3 Gel material 4 Carriage 5 Structure 6 Opening 7 Cover 8 Anti-bounce material 9 Composite material 10 Rubber 11 Winch

Claims (2)

袋体内に、天然ゴムを溶媒抽出したときに残存する不溶性の高分子の物質に油性材、難燃材を混入した未加硫ゴムや合成ゴムもしくは合成樹脂等の常温で高粘度の液状体であって、銃弾がその重量により沈下できる粘度としたゲル材を収納して受衝体とし、この受衝体を標的の背後に配置したことを特徴とする銃弾着弾装置。 A highly viscous liquid at room temperature, such as unvulcanized rubber, synthetic rubber, or synthetic resin, in which insoluble polymeric substances remaining after solvent extraction of natural rubber are mixed with oily or flame retardant materials. A bullet landing apparatus characterized in that a gel material having a viscosity at which a bullet can sink due to its weight is stored as an impact receiving body, and the impact receiving body is disposed behind the target . 請求項1において、銃弾に対して高伸度ゴムによるカバーを介して受衝体を配置したことを特徴とする銃弾着弾装置。  2. The bullet landing apparatus according to claim 1, wherein the impact receiving body is disposed on the bullet through a cover made of high elongation rubber.
JP2002377773A 2002-12-26 2002-12-26 Bullet landing gear Expired - Lifetime JP4101642B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002377773A JP4101642B2 (en) 2002-12-26 2002-12-26 Bullet landing gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002377773A JP4101642B2 (en) 2002-12-26 2002-12-26 Bullet landing gear

Publications (2)

Publication Number Publication Date
JP2004205173A JP2004205173A (en) 2004-07-22
JP4101642B2 true JP4101642B2 (en) 2008-06-18

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Country Status (1)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5625324B2 (en) * 2009-11-02 2014-11-19 株式会社Ihi Flying object speed detection system and flying object speed detection method
KR101196679B1 (en) 2010-09-08 2012-11-06 임남교 Device for Collection Head of Bullet
KR102009462B1 (en) * 2018-05-17 2019-08-09 주식회사 에아가이아 Bullet warhead recovering apparatus of live ammunition

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