To provide a crusher which can surely crush a hard object to be treated or a very elastic object to be treated.
The crusher is provided with a shredding roller 27 of the driving shaft side which is installed to a driving shaft 23 and is driven to rotate in the predetermined direction at a first rotational speed and which has at least one or more projecting parts 27a on the outer peripheral surface, and a shredding roller 28 of the driven shaft side which is installed to a driven shaft 26 arranged parallel to the driving shaft 23 and is driven in the opposite direction to the predetermined one at a second rotational speed and which has at least one or more projecting parts 28a on the outer peripheral surface. The rotation track of the projecting parts 27a of the shredding roller 27 of the driving shaft side and the rotation track of the projecting parts 28a of the shredding roller 28 of the driven shaft side approach each other and overlap in the direction of the driving shaft 23 and the driven shaft 26.
YOSHIMURA ISAO
Ryuichi Kijima
Ichiro Kaneko
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