HOOK TAKE-OUT STORAGE DEVICE OF CONSTRUCTION MACHINE

摘要

PROBLEM TO BE SOLVED: To easily take out a hook from a bucket link and secure work performance of excavation work.;SOLUTION: In a normal time, a stroke end Ca is a stretch position of the most expanded side among the stretch positions enabling a bucket cylinder 20 to operate at an expansion side C1, when a case that it is not a high reach mode is selected by mode selection means (93). In the high reach time, a predetermined position Cb is the stretch position capable of being taken when the high reach mode is selected by the mode selection means (93), and is the stretch position of the expansion side C1 rather than the stroke end Ca in the normal time. A locking mechanism 70 can be brought into a locked state when the stretch position of the bucket cylinder 20 is a contraction side C2 rather than the predetermined position Cb in the high reach time. The locking mechanism 70 is in an unlocking state when the stretch position of the bucket cylinder 20 is the predetermined position Cb in the high reach time.;COPYRIGHT: (C)2016,JPO&INPIT