| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an outrigger control device capable of quickly and moderately storing outriggers by a simple operation. <P>SOLUTION: The outrigger control device has a controller 420 including a relay circuit 400 and a control valve 406 connected to pilot pipe paths 430, 432. The pilot pipe paths 430, 432 supplies a pilot pressure for a control valve 406 and, thereby, a pressure oil feed amount to pilot pipe paths 402, 404 is controlled. A regulator 438 performs incline control of a variable displacement pump 410 to control an ejection amount. The controller 420 adjusts a pressure reducing valve 436, thereby, adjusts a pilot pressure (regulator pressure) of the regulator 438 and controls the ejection amount of the variable displacement pump 410. The controller 420 sets a pressure oil flow rate in accordance with the number of outrigger cylinders 206a, 206b, 206c, 206d to be operated which are set by a right and left switching switch 306 and a front and back switching switch 310, and an operation speed (outrigger operation amount) set by an outrigger operation lever 422. <P>COPYRIGHT: (C)2012,JPO&INPIT |
