Protective device for machines such as bending presses, cutting machines, punching machines or the like

摘要

A laser photoelectric barrier structure (19,20) on a first machine part (FMP) (10) has two photoelectric barriers (PBs) arranged consecutively in the FMP's working motion path. The two PBs' light beams run vertical to the direction of working motion and, in an adjustable safety position, have safety clearances between the FMP and a second machine part (11).