| 摘要 |
PROBLEM TO BE SOLVED: To provide a hopper device with a sieve superior in maintainability such as a sieve mesh. SOLUTION: This hopper device has the predetermined number of sieve frames 16 having a size of dividing the upper end opening area of a hopper body 2 into at least one or more. The sieve mesh 18 having a mesh of a predetermined size is stretched on the sieve frames 16, and a vibrator 21 is fixed for vibrating the sieve frames, and wheels 19 supporting the sieve frames 16 are installed in a lower part of the substantially four corners of the sieve frames 16. A guide rail 15 for guiding the sieve frames 16 so as to freely advance and retreat, is arranged in an upper opening part of the hopper body 2. The sieve frames 16 are placed on the guide rail to be easily taken in and out, and maintenance work such as cleaning and re-covering of the sieve mesh 18 is easily performed. COPYRIGHT: (C)2007,JPO&INPIT
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