| 摘要 |
1. Powered drum for loading ammunitions in a gun comprising a stationary casing (10), a rotary body (14, 16, 16') provided with several chambers which are evenly distributed around its axis and each one of which is intended to receive an ammunition, and a cam and roller system (42-42', 44-44') designed to convert the alternating motion, parallel to the loading drum axis, of a piston (40) into a step-by-step rotating motion of the loading drum body, characterized by the fact that the loading drum body comprises a hollow shaft (14) which accommodates the cam and roller system as well as a cylinder jack (36) which actuates the said system, a group of components, cams or rollers, of this system rotating interdependently with the loading drum shaft (14) whereas the components of the other group are mounted on a shaft (38) which is placed horizontally inside the loading drum shaft and connected to the piston of the said cylinder jack, that the said cylinder jack is integral with the casing of the loading drum and that means (19, 20) made integral with the said casing are provided at one end of the loading drum to guide the said shaft (38) longitudinally and to prevent its rotation, the cylinder jack (36) being mounted at the other end of the loading drum, at the end of the said shaft (38). |
