| 摘要 |
PROBLEM TO BE SOLVED: To provide a jib connection device of a crane, the guide member of which can be made small, the projection of which can be made to have satisfactory strength and the positions of whose guide member and projection can be visualized/confirmed easily. SOLUTION: The jib connection device 1 of the crane includes: a jib foot pin 11 projected into the lateral direction (the width direction of a boom 10) from the tip of the boom 10; the guide member 15 fixed to the jib foot pin 11; a jib foot 21 which is arranged on the base end of a jib 20 and fit into the jib foot pin 11; and the projection 25 fixed to the jib foot 21. The guide member 15 includes a position regulation part 17 for regulating the position of the projection 25. When the jib foot 21 is fit into the jib foot pin 11 and the jib 20 is projected, the position regulation part 17 is formed to be disposed on the inside of the projection 25 in the radial direction of the jib foot pin 11. COPYRIGHT: (C)2013,JPO&INPIT |
