Electric transmission module for module for window curtains having winding wheel
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United States of America Patent
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-
Apr 22, 2008
Grant Date -
Oct 27, 2005
app pub date -
Apr 26, 2004
filing date -
Apr 26, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electric transmission module for window curtains having a winding wheel bridges a power unit and a window curtain set so that the opening/closure of the curtains can be controlled. A string of a set of transmission pieces is wound around a first wheel groove of the winding wheel, and another string of transmission pieces is wound around a second wheel groove of the winding wheel, whereby the forward or backward rotation of the motor urges a synchronic rotation in the winding wheel. The transmission pieces are respectively released at one wheel groove and drawn back at another wheel groove. Compared with the prior art, the transmission module is simple in structure and easy to install. It further improves the problem of sliding between a winding wheel and a transmission string.
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Family
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Cited Art Landscape
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