Title:
RETRACTING ROPE DEVICE FOR SHUTTER
Document Type and Number:
WIPO Patent Application WO/2007/098709
Kind Code:
A1
Abstract:
A retracting rope device for a shutter includes a hollow case, a gear group, a winding roller group, spring leaves, a synchronization controller and a control group. The said gear group includes two gears, and the winding roller group includes two winding rollers. The two gears are fixed on the two winding rollers, respectively. The two gears are connected by a gear or a belt used as the synchronization controller, so that the two winding rollers can rotate synchronously. The two ends of the shades in the invention can be kept horizontal during retracting and spreading and can be used in various shutters.
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Inventors:
ZHENG LIMING (CN)
Application Number:
PCT/CN2007/000671
Publication Date:
September 07, 2007
Filing Date:
March 02, 2007
Export Citation:
Assignee:
ZHENG LIMING (CN)
International Classes:
A47H5/02
Foreign References:
| CN2517853Y | 2002-10-23 | |||
| CN2604501Y | 2004-02-25 | |||
| CN2371323Y | 2000-03-29 | |||
| CN2556349Y | 2003-06-18 | |||
| JP2001336373A | 2001-12-07 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, p.c. (Tower A Indo Building, A48 Zhichun Roa, Haidian District Beijing 8, CN)
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