| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the hydraulic pipings, which supply hydraulic pressure to lift cylinders, from being damaged by a flying object in an arrangement structure of the hydraulic pipings of an undercarriage of a working machine provided with the lift cylinders at both sides in the vehicle longitudinal direction of a car body. <P>SOLUTION: At the non-use time of the lift cylinders, arms 7 are stored inside in the vehicle width direction at both sides in the vehicle longitudinal direction of the car body 2. of The hydraulic pipings 8 each keep one end linked to a control valve 6 inside the car body 2 (inside an interior space S1), drawn outside the car body 2 from openings 23c through interior spaces S1, S2 inside the car body 2, and extended to the ends of the arms 7 along the outside surfaces of inner arm-side walls 73 of the arms 7, and the other end connected to the cylinder trunks 4a of the lift cylinders 4 fixed to the arm ends. <P>COPYRIGHT: (C)2013,JPO&INPIT |
