| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a suspension device of a counterweight and a walking crane, capable of improving working efficiency. <P>SOLUTION: Bottom side base end parts of suspension cylinders 110a and 110b are laterally separated and respectively supported, and are constituted so as to connect mutual tip parts of cylinder rods 113a and 113b by a lower connecting member 130. An oil passage is connected so that mutual bottom side oil chambers 111a and 111b and mutual rod side oil chambers 112a and 112b are communicated with each other. Thus, even if a gravity center position of an external weight 17 is dislocated in the lateral direction, when suspending the external weight 17, the external weight 17 is not largely inclined in the lateral direction. Thus, since there is no need to reload a weight member 17a even if the gravity center position of the external weight 17 is dislocated in the lateral direction, the working efficiency is improved. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
