Curtain
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United States of America Patent
Stats
-
Oct 9, 2012
Grant Date -
Dec 16, 2010
app pub date -
Jun 17, 2008
filing date -
Oct 24, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A curtain includes a curtain bracket (1) having an end to which a rotation driving device (3) is mounted. The rotation driving device (3) can actuate a curtain reeling drum (4A) to rotate a curtain cloth (7) or actuate a reeling rope device (4) to rotate a curtain cloth or shade (7). A reverse rotation releasing device (5) and a resilience reverse rotation mechanism (14) are connected to the rotation driving device (3). The rotation driving device (3) is comprised of a pull rope rotary disc (3c), a unidirectional clutch device (6) connected to the pull rope rotary disc (3c), and a rewinding spring (3e) mounted between the pull rope rotary disc (3c) and a pull rope rotary disc box (3a). Thus, only one cord is sufficient to control opening of the curtain cloth or shade (7), and reverse rotation of the curtain reel drum (4A) is not adversely affected by the rotation driving device (3). It is convenient to use while avoiding injury to children.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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