| 摘要 |
An actuation assembly for double-glazing units with a frame with two glazed panes that form a hermetic air space accommodating shutters movable to be gathered or rolled-up, which comprises rotary motion speed varying elements, with a first rotor, with a magnet ring external to the unit and a second rotor, with a magnet ring arranged inside the unit to surround coaxially thereto, the rotation shaft on which the cords, from which the shutters hangs, are wound.
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