| 摘要 |
PURPOSE:To prevent crush of objects being transported by installing an upright cylindrical member solidly with the upper disc plate, forming a throat above the cylindrical member, and thereby eliminating touch of those objects with the stationary wall. CONSTITUTION:If disc plates 3, 4 turn in synchronization with th framing 2 and upper and lower pipings 7, 8, a cylindrical member 13 will turn together. Because this cylindrical member 13 is formed along the circumferential edges of the upper disc plate 3, its rotation involves a minute gap between the inside circumferential wall of the upper piping 7 and itself. When objects to be transported 9 are cast into this type of rotary valve 11, they 9 are led into the cylindrical member 13 in the whole amount under guidance of a throat tube 14. The objects 9 are further introduced to a compartment 1 in the framing 2 through a feed hole 5 of the plate 3. Consequently, the objects 9 are surely sent onto the plate 3, when they do not touch the inside circumferential walls of the upper piping 7, so that there is no risk of biting in. |
