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AssigneesFelder KG, Technische UniversitäT Wien
InventorsThomas WEILER, Helmut CAUDR, Friedrich BLEICHER
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A safety system is provided for a machine tool, having a tool, having a clamping device, arranged movably on a frame of the machine tool, for the tool. The clamping device is movable by a movement device from a working position, in which the tool can be used for working and in which the tool poses a risk of injury to a user, into a safety position, in which the tool poses substantially no risk of injury to the user. The movement device has at least two equally or oppositely magnetized and/or magnetizable magnetic means, of which at least a first magnetic means is connected to or arranged on the tool and at least one second magnetic means is connected to or arranged on the frame, such that the movement of the tool by the movement device from the working position into the safety position can be triggered and/or at least partially performed by magnetic force.
A safety system for a machine tool having a tool, a clamping device arranged moveably on a frame of the machine tool for the tool, wherein the clamping device is moveable by a motion device from a working position, in which the tool can be used for working and entails a risk of injury to a user by the tool, into a safety position in which there is substantially no risk of injury to the user by the tool, wherein
The safety system as set forth in the preceding claim wherein the magnetic means include at least two electromagnets, wherein the coils of the at least two electromagnets are connected in series or parallel and preferably in the assembled position in the motion device are of an oppositely oriented winding direction.
The safety system as set forth in the preceding claim wherein the means for guiding the magnetic flux are in the form of at least one substantially annular or bar-shaped extension at at least one of the end faces of the core.
Dependencies are inferred from the claim text.