Mechanism for opening and closing an emergency exit

摘要

The subject of the invention consists of a means for protecting the push detector described in the main patent against inopportune and accidental pushes and for using it in order advantageously to replace a "glass-breaking" device. It consists of a wire 53 stretched between one of the arms 1 of the panic bar in the high position and a higher fixed point 52 of the transverse housing 3 fastened to the leaf of the exit. The wire 53 has a predetermined breaking-strength threshold. <IMAGE>