Actuation unit for venetian blinds or the like
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Feb 27, 1998
filing date -
Mar 3, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An actuation unit for a Venetian blind accommodated in a double-glazing unit or fixed to a window and movable between a fully packed or rolled-up condition and an opened-out condition. The actuation unit includes a magnetic kinematic coupling device which is connected with a device for generating a rotary motion and with kinematic systems for moving the Venetian blind. The magnetic kinematic coupling device has a first permanent cylindrical magnet which is connected so as to rotate with a shaft of the device for generating a rotary motion, and a plurality of second permanent magnets arranged about the first magnet. The second magnets have a polarization extending parallel and similar to that of the first magnet such that the second magnets rotate in relation to the rotation of the first magnet in response to a closure of radial field lines.
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