| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete crusher which enables wide-ranging work and which enables the stable conveyance of attracted reinforcement chips. SOLUTION: This concrete crusher 1 for crushing a reinforced concrete piece by sandwiching it between a fixed jaw 2 and a movable jaw 3 comprises: an oscillating arm 7 whose base end side is rotatably supported coaxially with a rotating spindle 3a of the movable jaw 3, and whose leading and side is elongated with almost the same length as that of the movable jaw 3; a magnet 6 which is attached to the leading end of the oscillating arm 7; and a first connecting means 8 for connecting the movable jaw 3 and the leading end side of the oscillating arm 7 to each other. In the crusher, when the reinforced concrete piece is held or crushed, the oscillating arm 7 is kept in a position to be turned in the direction of being separated from the movable jaw 3, in a state wherein the connecting means 8 is released. When the reinforcement chips are attracted by the magnet 6, the movable jaw 3 and the oscillating arm 7 are connected together by the connecting means 8. COPYRIGHT: (C)2005,JPO&NCIPI
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