Crash protection engineering for crane truck

摘要

PROBLEM TO BE SOLVED: To provide a fall prevention work for a crane truck which can easily execute the erection and storage of guard posts and locking work.;SOLUTION: First rigging fastening parts 29/34a, 34b/41 integrated with the guard posts 20 to 22 are provided at a peripheral position of a lower end of each of the guard posts 20 to 22 positioned at one side of a straight line connecting pivot pins 17 to 19 in both states of throwing down the guard posts 20 to 22 in parallel to a main boom 12 and standing them up vertically. Also, second rigging fastening parts 30/35a, 35b/42 are provided at a symmetrical position of the first rigging fastening parts. The first rigging fastening parts are connected to each other, the second rigging fastening parts are connected to each other, or the first rigging fastening parts are connected to the second rigging fastening parts, respectively, in the mutually adjacent guard posts 20, 21, and the guard posts 21, 22 with riggings 46 to 49, thereby working with the swing of the guard post 20 on the base side and swinging the other guard posts 21, 22 simultaneously.;COPYRIGHT: (C)2012,JPO&INPIT