- 专利标题: Drive mechanism and head rail for a blind
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申请号: US10223935申请日: 2002-08-19
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公开(公告)号: US06637492B2公开(公告)日: 2003-10-28
- 发明人: Konrad Welfonder
- 申请人: Konrad Welfonder
- 优先权: EP99305593 19990714
- 主分类号: E06B930
- IPC分类号: E06B930
摘要:
A head rail for a vertical blind, the head rail being elongate and having a drive mechanism at one end for selectively tilting and retracting slats of the vertical blind along the length of the head rail, the drive mechanism including a rotatable tilt drive for tilting slats, a rotatable retract drive for retracting and deploying slats, and a transmission for rotating the tilt drive and the retract drive by means of a single rotatable source, wherein the transmission includes a clutch for rotating the tilt drive, the clutch incorporating a lost motion mechanism whereby, after a predetermined number of rotations in the same direction, transmission by the clutch to the tilt drive is disengaged and wherein the transmission includes a control gear which is located at a position along the length of the head rail so that it can be meshed with teeth of an external drive source.
公开/授权文献
- US20030000654A1 Drive mechanism and head rail for a blind 公开/授权日:2003-01-02