| 摘要 |
PROBLEM TO BE SOLVED: To facilitate mounting and dismounting work for a counterweight. SOLUTION: A counterweight mounting and dismounting device comprises a support 25 projecting back from a revolving superstructure of a working machine, a frame 26 attachable to and detachable from the support 25, lifting and lowering cylinders 28 provided with a vertically extending piston rod 27 and mounted on the frame 26, a base weight 30 connectable to the piston rods 27 via lifting accessories 29, divided weights 31 placed on the base weight 30, and restraining cylinders provided with a piston rod 32 capable of fixing the base weight 30 lifted by an extension of the lifting and lowering cylinders 28 to the support 25. The extension of the lifting and lowering cylinders 28 lifts the base weight 30 and the divided weights 31 integrally. COPYRIGHT: (C)2003,JPO
|
