| 摘要 |
PROBLEM TO BE SOLVED: To provide a crane apparatus, locking the rotation of a post inner interlocking with storing of an arm of the crane apparatus by simple operation. SOLUTION: This crane apparatus 1 having a post 10 rockably supporting the arm 20 includes a rotation locking mechanism for locking the rotation of the post inner in the post outer, in which a post is composed of a cylindrical post outer 11 and a cylindrical post inner 12 rotatable in the post outer, and the arm is connected to the post inner through a bracket 21. The rotation locking mechanism is constructed so that a locking material 44 is disposed in the post outer, and the locking material is pressed to the inner cylindrical surface of the post outer interlocking with the prostrating operation of the arm. COPYRIGHT: (C)2006,JPO&NCIPI
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