Patent ID: 6169948
Filing Date: 2001-01-02
Classification: E02F,Y10T

Abstract:
A front control system equipped on a construction machine comprising a multi-articulated front device made up of a plurality of front members rotatable in the vertical direction, a plurality of hydraulic actuators for driving respectively said plurality of front members, and a plurality of hydraulic control valves driven in accordance with respective operation signals input from a plurality of operating means for controlling flow rates of a hydraulic fluid supplied to said plurality of hydraulic actuators, said front control system controlling said front device to be moved in a preset area, wherein said front control system comprises: first area setting means having a direct setting switch for setting an area where said front device is allowed to move, by direct teaching in response to an instruction from said direct setting switch, second area setting means having a numeral input switch for setting an area where said front device is allowed to move, by inputting a numeral value through said numeral input switch, and setting selection means for selecting one of said first area setting means and said second area setting means.