Double glazing window shade - has a labyrinth seating in connection between external rotating control and the shaft for operation without damage to hermetic sealing

摘要

The shade, for a double-glazed window, has an external operating control which can be rotated, connected to a shaft (8) in a sleeve (9) with sealing material in a labyrinth seating. Pref. the water-rejection material in the labyrinth seating is grease or a silicone oil. USE/ADVANTAGE - The shade is operated externally at double-glazed window. The shade can be operated easily at the window, without damage to the hermetic sealing of the window structure.