| 摘要 |
PROBLEM TO BE SOLVED: To attempt a cost reduction or miniaturization of a crusher which can crush even hard-to-crush materials. SOLUTION: A bearing is attached to each of the inside walls of the front and back plates of a casing 21. The third rotary shaft 12 is supported with the bearings in a freely rotatable way. Rotary blades 13a and 13b are attached, respectively, at a front and a back separate point of the third rotary shaft 12. The rotary blades 13a and 13b each have three paddles 16 consisting of a blade member. The third rotary shaft 12 is arranged so that the tip 16a of a paddle 16 of the rotary blade 13a or 13b is engaged in the nail blade part 23e of the second rotary blade 23b of the second rotation shaft 22b. The arrangement transmits the rotation force of the second rotary shaft 22b to the rotary blade 13a or 13b through the second rotary blade 23b, leading to rotation of the rotary blades 13a and 13b and the second rotary shaft 12. COPYRIGHT: (C)2007,JPO&INPIT
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