| 摘要 |
PROBLEM TO BE SOLVED: To grind grains or the like besides tea leaf to a particle size to user's taste. SOLUTION: The mill is provided with a first grinding part 21 to shred materials to be ground with a die 15 and a screw 17, a second grinding part 22 to feed the materials shredded by the first grinding part 21 to the grinding surfaces 3a, 4a of an upper millstone and lower millstone 4 to grind the ground materials, and a first hopper part 10 installed to the upper case 5b composing a main body case 2 to feed the ground materials to the first grinding part 21. In the first hopper part 10, an auxiliary feed opening 31 is formed to feed the ground materials to the second grinding part 22 by bypassing the first grinding part 21. An adjusting member 32 to adjust the opening of the auxilliary feed opening 31 is installed rotatably. The adjusting member 32 is set up rotatably around the upper case 5b. COPYRIGHT: (C)2003,JPO
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