| 摘要 |
A powder conveyance device includes a powder container, a conveyance pipe extending downward and including first, second, and third conveyance portions disposed in that order, a first bent portion connecting together the first and second conveyance portions, bent in a direction to increase a horizontal gradient of the second conveyance portion from that of the first conveyance portion, and a second bent portion connecting together the second and third conveyance portions, bent in a direction to reduce a horizontal gradient of the third conveyance portion from that of the second conveyance portion, a powder conveyance member disposed inside the conveyance pipe, and a first powder regulator movably disposed inside the third conveyance portion of the conveyance pipe, to restrict an amount of powder discharged through the discharge port by varying a cross sectional area of a space present above a discharge port in the conveyance pipe.
|
