| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent occurrence of a bridge in a hopper with a simple structure regardless of a tilting angle of the interior surface of a hopper part. <P>SOLUTION: The hopper includes: a hopper part 12 formed to gradually shrink the diameter downward from a top end opening 12b; and a throat part 13 connecting down the hopper part 12 to extend up and down. The lower end of the throat part 13 is open. In a hopper 10 which can discharge down a material M supplied into the hopper part 12 from the top end opening 12b from the lower end of the throat part 13, the lower end edge of the hopper part 12 is connected with the top end edge of the throat part 13 to comprise an edge line part 11, there is at least one pair of opposing parts wherein the interior surfaces 12a and 12a of the hopper part 12 face each other in the planar view, and the edge line parts 11 and 11 positioning just below the opposing parts are set so that the heights differ each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
