| 摘要 |
PROBLEM TO BE SOLVED: To provide a crushing machine that comprises a reverse rotation mechanism and thus works efficiently even when the mechanism is a small-sized machine. SOLUTION: The driving mechanism of the crushing machine 3 includes an input shaft 331 to which the rotation from an engine 221 is given, a normal rotation pulley attached to the input shaft 331, a reverse rotation gear 339 for reversing the rotation of the input shaft 331, an electromagnetic clutch for controlling the joint of a normal rotation gear and the input shaft 331 and the joint release, an output shaft 332 that rotates normally and serves as a source of rotation for a feed roller 312 when the normal rotation pulley and the input shaft 331 are in a joint state, a reverse rotation output pulley 345 for giving reverse rotation to the output shaft 332 and a switching mechanism. The switching mechanism transfers the rotation of a reverse rotation pulley 341 to the reverse rotation output pulley 345 to provide the reverse rotation to the output shaft 332 by making the electromagnetic clutch a joint-releasing state and making the reverse rotation pulley 341 distant from the reverse rotation output pulley 345 to stretch a reverse rotation transfer belt 344. COPYRIGHT: (C)2010,JPO&INPIT
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