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    • 8. 发明公开
    • SCHEIBENFÖRMIGER TREIBSPIEGEL
    • 圆盘状的后视镜
    • EP2167904A1
    • 2010-03-31
    • EP08773721.9
    • 2008-06-27
    • Rheinmetall Waffe Munition GmbH
    • PAESCH, AlexanderRYBOL, Martin
    • F42B7/08
    • F42B7/08
    • The invention relates to a disk-shaped sabot for accelerating a projectile body (5) that can be fired from a smoothbore barrel (1), the projectile body preferably having the same caliber as the barrel. The aim of the invention is to provide a sabot (6) which separates from the projectile body (5) immediately after passage of the muzzle (4) of the respective barrel (1) without impairing the further trajectory of the projectile body (5). The preferably one-piece sabot (6) is configured in such a manner that it is supported only in sections on the rear zone of the projectile body (5) to transmit the gas pressure forces impacting the projectile body (5) when it is fired, at least one cavity (11, 12) remaining between the sabot (6) and the rear (7) of the projectile body (5). A least one pressure-relieving bore (13) extends through the bottom (8) of the sabot (6), through which bore propelling gases penetrate the cavity (11, 12) between the sabot (6) and the rear (7) of the projectile body (5) when the projectile unit (2) is fired and produce a defined excess pressure in relation to the outer ambient pressure, which excess pressure causes the sabot (6) to separate from the projectile body (5) as soon as the projectile unit (2) consisting of the projectile body (5) and the sabot (6) has passed the muzzle (4) of the barrel (1).
    • 10. 发明授权
    • SCHROTPATRONEN MIT BIOLOGISCH ABBAUBAREN ZWISCHENMITTELN
    • 与基金之间的生物可降解SHOTSHELLS
    • EP1340039B1
    • 2004-10-27
    • EP01991765.7
    • 2001-11-29
    • RUAG Ammotec GmbH
    • SCHIKORA, IreneWAGNER, PeterWURZBACHER, Norbert
    • F42B7/08
    • F42B7/08
    • The invention relates to small-shot cartridges containing biodegradable separators. Depending on the respective intended utilization, small-shot cartridges contain either sealing disks or cup-shaped wads that are referred to as separators and that separate the charge from the pellets. The cup-shaped wads usually consist of plastic, for example LDPE (low density polyethylene) or similar materials. The sealing disks may consist of plastic, but also of other materials, for example of cardboard, felt, fibers or combinations thereof. These materials may lead to sealing problems and may impair interior ballistics, the trajectory of the projectile in the barrel, and ignition and combustion processes. If the separators are ejected from the barrel by the impact of the shot and are left behind during hunting in the countryside or during shooting in the shooting gallery, especially the non-biodegradable plastic materials constitute an environmental hazard. According to the invention, the separator (1) is therefore produced from a non-brittle, biodegradable material that is resistant to the temperatures of the propellants while it does not impair the function of the separator and that is completely biodegradable when stored under the conditions of composting.