Patent ID: 7446301

Claim:
Safety device comprising a beam emitter and/or beam receiver for a manufacturing machine with at least one retaining mechanism designed in the form of an adjusting mechanism for the safety device on a press beam which can be fitted with bending tools in a tool mounting device, wherein the adjusting mechanism holds the beam emitter and/or beam receiver in a guiding arrangement that allows the beam emitter and/or beam receiver to be adjusted relative to the press beam along a first direction running perpendicular to a standing surface between at least one working position and a park position, wherein the park position is relatively farther in the first direction away from a working plane of the manufacturing machine than is the working position, wherein the adjusting mechanism has a guiding and locking device switching a locking element of a locking device between a releasing position that allows said adjustment along the first direction and a retaining position that prevents said adjustment along the first direction, and the retaining mechanism for the beam emitter and/or the beam receiver automatically switches the locking element to the retaining position and locks the beam emitter and/or beam receiver in the park position fixed in relation to the press beam upon a linear displacement of the beam emitter and/or beam receiver in the first direction away from the working plane to or past the park position, the locking element being arranged in a guide housing arranged in a bore of a housing of the guiding and locking device, and the locking element being pretensioned by means of a spring arrangement acting between the locking element and the guide housing projecting over a side surface of the housing in the direction of a stop and switching means.