Patent ID: 8309904

Claim:
A safety system for safeguarding a moving, guided motion element against unwanted collisions with an object located on a motion path in the direction of motion of the motion element, said safety system comprising: (i) an object-detection device for detecting an object in an area of the motion element, which object-detection device can be blocked with respect to object detection by a motion of the motion element, (ii) an electronic unit with which the motion of the motion element can be controlled and which is configured to assign a blocked state to the object-detection device when the motion element approaches, in which blocked state an object or motion element does not trigger a safety mode, and (iii) a shut-off mechanism which, when a shut-off signal coming from the motion element is detected, transfers at least part of the object-detection device into the blocked state, wherein the shut-off mechanism comprises a transmitting element for a shut-off signal which is either seated directly on the motion element or is tuned to an optical reflector for electromagnetic radiation on the motion element in such a way that a signal of the transmitting element can be received by a receiver of the shut-off mechanism only in a predefined motion area of the reflector on the motion element, wherein the object-detection device comprises a curtain composed of a multiplicity of object detectors which are arranged successively in the direction of motion of the motion element.