Venetian blind lifting mechanism provided with concealed pull cords
US6024154A · kind A · utility
76Cited by
6References
17Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 28, 1999 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Jan 28, 2019 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B9/322
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A Venetian blind lifting mechanism is composed of a slat set, a winding member, a slat winding cord, and a locating member. The slat set has a plurality of slats. The winding member has at least one cord pulling member and at least one spring releasing unit which is linked with the cord pulling member. The cord pulling member has one end which is extended through the slat set, and other end which is fastened with the cord pulling member. The locating member has a retaining member capable of bringing about a retaining force to overcome the rewinding force of the winding member so as to stabilize the cord pulling member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.