| 摘要 |
PURPOSE:To obtain the smooth flow of unhardened concrete by providing a rear drum behind a front drum as well as a throw-in port on the upper front part and a discharging port at the lower rear part of the rear drum respectively for extending blades inside the front drum up to the rear drum. CONSTITUTION:For containing unhardened concrete and the like inside a mixer- drum 1, a first, a motor 7 of a front drum 5 is regularly rotated, and unhardened concrete and the like are thrown in from a throw-in port 11. After thrown in the first rear drum 9, the unhardened concreate and the like are transferred by blades 8 and an auxiliary blade 17, and contained in the front drum 5. Meanwhile, for discharging the unhardened concrete and the like, the front drum 5 is reversely rotated to transfer them backward and discharge from a discharging port 12 of the rear drum 6 via a conduit 13, a flexible hose 14, and a shoot 15. At this state, the width of the flow route from the front drum 5 to the discharging port 12 permits to transfer the unhardened concrete and the like smoothly, and the height of the discharging port 12 allows to discharge them to a far or a high place. |
