| 摘要 |
PROBLEM TO BE SOLVED: To improve the durability of a pressing-out part of a rotary disk in a hopper. SOLUTION: In this hopper having the rotary disk having a bowl for storing the disk, a through-hole positioned in a bottom part of the bowl to let the disk pass, and a pressing-out arm adjacent to the through-hole, the rotary disk consists of a resin disk having the through-hole and a pressing-out disk made of a hard material and having the pressing-out arm attached to the resin disk.
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