| 摘要 |
A firearm has a frame, a magazine fitted in the frame and holding a plurality of cartridges including a top cartridge, a slide displaceable longitudinally on the frame above the magazine and its top cartridge along a longitudinal slide axis between a front position and a rear position, and a barrel centered on a barrel axis, displaceable longitudinally on the frame between respective front and rear positions, and having a rear end formed with a rearwardly open cartridge-receiving firing chamber. Pivot structure engaged between the barrel and the frame pivots the barrel on the frame between a firing position with the barrel axis substantially parallel to the slide axis and with the firing chamber transversely offset above the top cartridge and a loading position with the barrel axis forming an acute angle with the slide axis and with the firing chamber aligned longitudinally with and open downwardly toward the top cartridge. Cam structure between the barrel, frame, and slide pivots the barrel from its firing position to its loading position on displacement of the barrel and slide rearward out of their front positions and returns the barrel to its firing position on displacement of the barrel and slide forward back into their front positions.
|
