| 摘要 |
PROBLEM TO BE SOLVED: To perform the work of bending a workpiece using a press brake 1 while the safety consciousness of a worker OP is sufficiently raised.SOLUTION: A descent action of an upper table 15 is allowed when the face of a worker OP is judged to direct to a predetermined visual recognition EA to be visually recognized to secure the safety of the bending work under the condition that start signals are input from a foot switch 23. When the face of a worker OP is judged not to direct to the predetermined visual recognition EA on the other hand, the descent action of the upper table 15 is not allowed in principle even in the presence of inputs from the foot switch 23.SELECTED DRAWING: Figure 1 |
