| 摘要 |
PCT No. PCT/SE90/00365 Sec. 371 Date Feb. 3, 1992 Sec. 102(e) Date Feb. 3, 1992 PCT Filed May 30, 1990 PCT Pub. No. WO90/15300 PCT Pub. Date Dec. 13, 1990.Rammer for those artillery pieces which are charged with a shell and propellant separately, intended to move the shell, upon charging the piece, from a charge position in the immediate vicinity of the charge opening of the piece to the rammed position of the shell inside the barrel ahead of the charge space intended for the propellant powder charge. The rammer, which preferably is hydraulically operated, is divided into two piston cylinder systems consisting of a primary rammer and a secondary rammer connected by means of a transverse arm and designed with parallel but counter-directed projection directions. Immediately before the rammer is activated, the secondary rammer is situated along the longitudinal axis of the barrel and with its own piston rod completely retracted immediately behind the shell situated in the charge piston, while the primary rammer is at the same time completely projected. Upon ramming, the primary rammer is drawn in and the secondary rammer is pushed out. The invention also includes a swivel function which makes it possible to move the rammer aside from its active position behind the piece to a rest position at the side of the piece. |
