Rotary visible window for use on safety laminated glass pane of machine tool, has rotor and/or rotor window exchanged by removing fixing bolt, and magnet fastened to rotor by shifting magnet towards rotation axis into coil units

摘要

The window (1) has an electronic motor or a phase shifted stepping motor arranged in a construction unit and provided with a rotor, where the rotor has a rotor window and circularly arranged magnet. The rotor is designed in a bell-shape such that the magnet is fastened to the rotor by shifting the magnet towards a rotation axis into coil units that is arranged in a stator in a circular movable manner. The rotor and/or the rotor window are exchanged and/or cleaned by removing a fixing bolt. A gap and/or labyrinth-type seal exist between the rotor and the stator.