| 摘要 |
PURPOSE:To permit operations to be performed by workers without any trouble by a method in which an operation limit position is compared with the present position of worker by the setter of a controller according to command signals from an operation range control commander, and a drive signal is sent out. CONSTITUTION:Position sensors 11 and 12 for operating a working machine and a setter 21 to set up an operation limit position are provided, and a comparator to compare calculated value by signals from the sensors 11 and 12 with the operation limit position is also provided. A controller 22 to send out signal to operate a driver 20 according to the results of the comparison and an operation range control commander 21 to send out command for positioning a working tool 6 on an operation limit position set by the setter are provided. On the basis of the command signal, comparison is made by the controller 22 for automatic control on operation range to position the tool 6 within the operation range region 32. The efficiency of operations by the tool 6 can thus be improved. |
