TREIBERSCHALTUNG FUR LAST

摘要

The present invention relates to a fail-safe automatic sliding operation control apparatus for a press. The entrance and withdrawal behaviors of an operator's hand relative to danger zones (D, DN) on a bolster of the press is detected by an output generation configuration of two optical curtains (5,21). A signal for permitting a lowering operation of the slide is generated when the operator's hand is withdrawn from the danger zones (D, DN).