| 摘要 |
PROBLEM TO BE SOLVED: To provide a grab bucket capable of regenerating a fluid pressure generating source or a battery mounted on the grab bucket.SOLUTION: A grab bucket A includes: a grab 1 having a pair of shells 2; a lower frame 3 that supports the shells 2 so that they are freely opened and closed; an upper frame 5 connected to the grab 1 through a suspension arm 4; an intermediate movable frame 7 arranged between the upper frame 5 and the lower frame 3; a pulley 50 arranged at the intermediate movable frame 7 and the upper frame 5; a wire rope 8 wound around each pulley 50; a fluid pressure drive device 10 mounted on the lower frame 3, the upper frame 5, etc.; a fluid pressure generating source 13 for supplying fluid pressure to the fluid pressure drive device 10; and a battery BT for supplying power to the fluid pressure drive device 10. An energy regenerative device B driven by the rotational force of the pulley 50 is provided to at least one of the pulleys 50. |
