| 摘要 |
PROBLEM TO BE SOLVED: To provide a crusher capable of efficiently crushing starfish, fishery products and field crops. SOLUTION: This crusher is provided with: a main body 12 of a cylindrical whole shape; a truncated conical end part 14 connected to one end of the main body; a first shaft 18 rotatably disposed in the main body along a longitudinal axis of the main body and having a hollow part formed thereinside; and a second shaft 28 rotatably disposed in the hollow part. The first and second shafts are set to rotate with different rotation speeds. A spiral blade 26 is disposed on the outer face of the first shaft, and a spiral blade 38 with a diameter formed to be gradually reduced along an inner face of the end part is disposed on the outer face of a conical body 36 attached to the end part of the second shaft projected from the hollow part of the first shaft and extended into the end part. COPYRIGHT: (C)2008,JPO&INPIT
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