| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a counterweight removing device which has a simple structure, does not cause any accidental interference between a counterweight hoisting cylinder and a peripheral structure owing to the rotation of a swivel base when a cylinder side connection part is connected to a weight side connection part, and prevents surplus stress from acting in a bending direction of the counterweight hoisting cylinder. <P>SOLUTION: The counterweight removing device is configured in such a way that a counterweight is attached to a weight attachment frame 6 by only an operation of direct-acting a counterweight hoisting cylinder 8 and a connecting pin driving cylinder 18, and furthermore, a rod-like baffle connecting member 21 is provided so as to bridge lower ends of the right and left counterweight hoisting cylinders 8 and 8 to always keep the directionality of a connecting pin constant and to prevent the counterweight from being dropped because of damage caused by a collision or interference between the connecting pin and a connecting flange 22 or because of a connection failure caused by the deformation of the connecting flange 22. <P>COPYRIGHT: (C)2013,JPO&INPIT |
