| 摘要 |
<P>PROBLEM TO BE SOLVED: To allow a front device for a construction machine to be easily and safely fixed to a mounting base in a short time. <P>SOLUTION: A front device 7 for the construction machine includes a boom and an arm, and a hydraulic removable pin device 30 mounted on the lower face of the boom, and having a removable pin 32 constructed to be put in and out of the boom in the direction perpendicular to its longitudinal direction. The hydraulic removable pin device includes a bracket 31 to be mounted on the boom, and a pin driving part 33 mounted on the bracket for driving the removable pin. The pin driving part includes a hydraulic cylinder 33a, and a link 33b for transmitting the telescopic motion of the hydraulic cylinder to the removable pin to give an action to the removable pin to be put in and out of the boom in the direction perpendicular to its longitudinal direction. <P>COPYRIGHT: (C)2013,JPO&INPIT |
