| 摘要 |
PROBLEM TO BE SOLVED: To prevent looseness of a holding hook, to prevent the holding hook from contacting with an obstacle, and to reduce manufacturing cost, while easily and simply operating a means engageably-disengageably held by a bucket link when the hook is not used in a crane hook device of a hydraulic excavator. SOLUTION: This crane hook device has the hook 22 rotatably installed on one side of a pair of connecting pins 20a and 20b on both ends of the bucket link 18 and a hook holding means 26 arranged in the bucket link 18 and having an elastic member 24 pressed to and held by the bucket link by extension operation by hand for freely releasing. COPYRIGHT: (C)2007,JPO&INPIT
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