| 摘要 |
PROBLEM TO BE SOLVED: To provide a vibrating sieve which prevents the scattering of powders upward during an operation. SOLUTION: A frame 6 on the periphery of the vibrating sieve 2 contacting the powders is slanted to open upward. Even when the pressure of the powders is increased by being pushed to the frame 6 by vibration, since the frame is slanted, the increase of the pressure is eliminated by moving the powders slightly diagonally upward, preventing the upward scattering of the powders from the periphery of the frame 6.
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