Bullet stopping device and shooting practice range



PROBLEM TO BE SOLVED: To prevent the collapse of a bullet stop wall caused by the expansion of a bullet stop block caused by a caught bullet. SOLUTION: This bullet stopping device has the bullet stop wall 3 disposed behind targets 2 for shooting practice. The bullet stop wall is formed by stacking a plurality of bullet stop blocks 4 of rectangular parallelopiped shape with elasto-viscosity and arranging them in a lateral direction. The bullet stop block is formed by connecting granular members with elasto-viscosity at a predetermined rate of porosity with a binder, and a large porosity region 10 with larger porosity than the predetermined rate of porosity is formed at a part of the bullet stop block. The expansion of the bullet stop block caused by the caught bullet is thereby absorbed by a cavity to prevent the collapse of the bullet stop wall. COPYRIGHT: (C)2007,JPO&INPIT
【課題】 捕捉した弾丸による停弾ブロックの膨張に起因する停弾壁の崩壊を防ぐ。 【解決手段】 射撃訓練用の標的2の背後に配置された停弾壁3を有してなり、停弾壁は、弾粘性を有する直方体状の複数の停弾ブロック4を積み重ねて、かつ横方向に配列して形成され、停弾ブロックは、弾粘性を有する粒状部材を所定の空隙率でバインダー結合して形成され、かつ、停弾ブロックに所定の空隙率よりも大きい空隙率大領域10が一部に形成されてなる停弾装置とすることにより、捕捉した弾丸による停弾ブロックの膨張を空洞部により吸収して、停弾壁の崩壊を防ぐ。 【選択図】 図1




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Patent Citations (6)

    Publication numberPublication dateAssigneeTitle
    GB-2242730-AOctober 09, 1991John Alan VertannessBullet trap
    JP-2002062095-AFebruary 28, 2002Babcock Hitachi Kk, バブコック日立株式会社停弾装置
    JP-2002318097-AOctober 31, 2002Babcock Hitachi Kk, バブコック日立株式会社停弾装置
    JP-2003287399-AOctober 10, 2003Sumitomo Electric Ind Ltd, Taiyo Kogyo Corp, 住友電気工業株式会社, 太陽工業株式会社銃弾回収装置及びその方法
    JP-H05157224-AJune 22, 1993Mitsubishi Heavy Ind Ltd, 三菱重工業株式会社火炉耐火壁
    JP-H0520680-B2March 22, 1993Imupuresa Kosutorujioni Soc Efu Aaru Ei Sa Ei Aaru Eru

NO-Patent Citations (0)


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