Viewing window protection device for use in e.g. machining cabin during machining of abrasive workpiece, has protective foil that is arranged between workpiece to be machined and viewing window and arranged at distance to viewing window

摘要

The device has a transparent protective foil (3) for viewing window (2), where the protective foil is arranged between a workpiece to be machined (4) and the viewing window and is arranged at a distance to the viewing window. A retaining device (8) is provided for protective foil and defines the distance between the protective foil and the viewing window, where the distance between the protective foil and the viewing window is changeable. The protective foil adheres to the retaining device at a contact element (9).