| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pressurized oil feeder of a mobile crane capable of easily performing conversion between a crawler type and a wheel type to each other. <P>SOLUTION: A valve unit 13 of the pressurized oil feeder 2 includes two changeover control valves 7, 8 having the specification capable of individually driving travel motors 3, 4, a merging conduit 17 connected to a main conduit 20 to connect the changeover control valves 7, 8, two check valves 18, 19 arranged on the merging conduit 17, and two relief valves 21, 22 added to the changeover control valves 7, 8. Furthermore, a predetermined driving mechanism for a wheel necessary for a wheel crane is added thereto. <P>COPYRIGHT: (C)2009,JPO&INPIT |
