A guard device for machines such as bending presses, cutting...

F - Mech Eng,Light,Heat,Weapons – 16 – P

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F16P 3/14 (2006.01) B30B 15/28 (2006.01)

Patent

CA 2411215

A guard device for machines such as bending presses, cutting machines, stamping machines or the like, wherein a first machine part performs operative movements toward a second machine part. A photoelectric detector arrangement is attached to the first machine part by means of a holding means. This photoelectric detector arrangement possesses at least one photoelectric detector, whose light beam shines perpendicular to the working movement and in an adjustable secure position is at a secure distance from such machine part toward the other machine part. On interruption of the light beam the operative motion is arrested by means of a locking means.

Un protecteur pour machines telles que presses à cintrer, machines à couper, estampeuses ou autres machines du même genre, dans lesquelles une première partie d'une machine exécute un mouvement opératoire vers une seconde pièce de la machine. Un dispositif à détecteur photoélectrique est fixé à la première partie de la machine au moyen d'un dispositif de retenue. Le dispositif à détecteur photoélectrique comporte au moins un détecteur photoélectrique dont le faisceau lumineux éclaire perpendiculairement au mouvement opératoire et se trouve dans une position de fixation réglable à une distance de sécurité d'une telle pièce vers l'autre pièce de la machine. € l'extinction du faisceau lumineux, le mouvement opératoire est interrompu au moyen de dispositifs de blocage.

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