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    • 8. 发明授权
    • Gas-operated firearm
    • 燃气枪支
    • US09534860B2
    • 2017-01-03
    • US14793997
    • 2015-07-08
    • L&O HUNTING GROUP GMBH
    • Jan Leimer
    • F41A5/18F41A5/26F41A21/28F41A3/34F41A21/48
    • F41A5/26F41A3/34F41A5/18F41A21/28F41A21/485
    • A gas-operated firearm with a lock housing, a guide rod projecting forward from the lock housing, as seen in the shooting direction, for a lock activation device, which is located so it can be displaced on the guide rod and which interacts with a lock for its movement between a locking position and an unlocking position, and a barrel with a gas withdrawal block fastened on the lock housing, which contains at least one gas withdrawal borehole that opens into the barrel, and a pressure piston that is guided so that it can be displaced in the gas withdrawal block for the displacement of the lock activation device against the force of a lock spring. A simplified installation and dismantling of the barrel can thus be made possible in that the barrel contains a rear part, which can be placed on the lock housing and can be firmly connected with it, and a front part, which freely projects from the lock housing, without a firm connection with the guide rod.
    • 具有锁定壳体的气体操纵的枪支,从拍摄方向看到的从锁定壳体向前突出的导杆,用于锁定致动装置,其被定位成使得其可以在导杆上移位并与其相互作用 锁定其在锁定位置和解锁位置之间的运动,以及具有紧固在锁壳体上的排气块的桶,其包含至少一个通向筒体的气体取出钻孔,以及压力活塞,其被引导使得 它可以在排气块中移动,以防止锁定启动装置抵抗锁定弹簧的力的移动。 因此,可以简化的筒的安装和拆卸,因为筒体包含后部,该后部可以放置在锁定壳体上并且可以与其牢固地连接;以及前部,其从锁定壳体 ,与导杆没有牢固的连接。
    • 9. 发明授权
    • Mechanical tight cartridge casing release for a rifle bolt
    • 用于步枪螺栓的机械式密封套筒释放
    • US5926988A
    • 1999-07-27
    • US9967
    • 1998-01-21
    • Richard J. Casull
    • Richard J. Casull
    • F41A3/22F41A3/72F41A3/34
    • F41A3/72F41A3/22
    • A mechanical tight cartridge casing release of the invention is preferably for inclusion with a large cartridge rifle bolt and includes a pivot mounting of a rifle bolt arm or handle to the bolt whereby, after the arm or handle is moved to an unlocked position, an application of a force to the arm or handle end wil pivot that arm or handle relative to the bolt surface such that an arm or handle forward shoulder engages a surface of the rifle receiver producing a lever action and providing a mechanical advantage to the force applied by an operator or shooter that arm or handle to "break loose" the spent cartridge casing from the barrel chamber, with the bolt to then be moved rearwardly to where the casing is ejected. The relationship of the distance from the bolt handle end that is pulled by the operator or shooter to the arm or handle pivot and the distance from the pivot to the handle forward shoulder is selected to provide a desired mechanical advantage whereby a pulling force as is exerted through the arm or handle is increased to "break loose" the spent cartridge casing that will have expanded in the rifle chamber when the cartridge is fired.
    • 本发明的机械密封筒壳体释放优选地包括大型筒式步枪螺栓,并且包括将步枪螺栓臂或手柄枢转安装到螺栓,由此在臂或手柄移动到解锁位置之后,应用 对臂或手柄端部的力的相对于螺栓表面枢转该臂或手柄,使得臂或手柄前肩接合步枪接收器的表面产生杠杆作用,并且对由 操作者或射手,其手臂或手柄将“用户筒”从“筒室”松开,然后将螺栓向后移动到套管弹出的位置。 选择由操作者或射手拉动到手柄或手柄枢轴的螺栓手柄端的距离和从枢轴到手柄前肩的距离之间的关系,以提供期望的机械优点,由此施加的拉力 通过手臂或把手被增加到“松开”当筒被点燃时将在步枪室中膨胀的用过的筒壳体。