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    • 2. 发明授权
    • Short-range practice projectile
    • 短距离练习射弹
    • US4911080A
    • 1990-03-27
    • US261517
    • 1988-10-03
    • Jurgen LeekerRudolf Rombach
    • Jurgen LeekerRudolf Rombach
    • F42B10/50
    • F42B10/50
    • A practice projectile has a cylindrical casing having front and rear portions; a bottom section attached to the rear portion of the cylindrical casing; a frontal nose section including at least two subcomponents which have front and rear portions. The subcomponents can assume a closed position in which the projectile has an external configuration identical to that of a live projectile having the same caliber and an open position in which the subcomponents are in a spread-apart state at a given opening angle. The rear portion of the subcomponents is pivotally connected to the front portion of the cylindrical casing. There is further provided a device for holding the subcomponents together in the closed position prior to firing the projectile. The holding device is arranged to be overcome by centrifugal forces derived from a projectile spin subsequent to firing, to thereafter allow the subcomponents to assume the open position.
    • 练习弹丸具有圆柱形壳体,其具有前部和后部; 底部,其连接到所述圆筒形壳体的后部; 包括至少两个具有前部和后部的子部件的正面鼻部。 子部件可以采取关闭位置,其中抛射体具有与具有相同口径和打开位置的活射弹相同的外部构造,其中副部件在给定的开度角处处于展开状态。 副部件的后部可枢转地连接到圆筒形壳体的前部。 还提供了一种用于在击发抛射体之前将子部件保持在关闭位置的装置。 保持装置布置成通过从点火之后的射弹自旋导出的离心力来克服,之后允许子部件呈现打开位置。