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    • 9. 发明申请
    • HYDRAULIC TRAVERSE AND ELEVATION MECHANISM
    • 液压牵引和升降机构
    • WO9748960A3
    • 1998-05-07
    • PCT/US9710355
    • 1997-06-17
    • MC DONNELL DOUGLAS HELICOPTER
    • HOFFMAN KENNETH JNEIKES DANNY EVAN OSTEN DON E
    • F41A27/26F41C
    • F41A27/26
    • A locking mechanism for locking an orientation of a weapon is disclosed. The locking mechanism includes a first movable arm (46) adapted to contact and apply pressure onto a control surface (30) associated with the weapon (12), and a second movable arm (48) adapted to contact and apply pressure onto the control surface (42) associated with the weapon (12). The locking mechanism further includes a valve (54) for applying and removing resistance to the first movable arm (46) and the second movable arm (48), to thereby control a resistance to movement of the first movable arm (46) and the second movable arm (48). The valve (54) is adapted to remove resistance from the first movable arm (46) and the second movable arm (48) in order to allow the weapon (12) to be moved freely into a desired orientation. After the weapon (12) is moved into the desired orientation, the valve (54) may be moved again to increase resistance to thereby allow for fine adjustments in the orientation of the weapon (12). Finally, the valve (54) may be completely closed to lock the orientation of the weapon (12). The first movable arm (46) and the second movable arm (48) each have separate hydraulic cylinders and pistons.