Device for winding the suspension cord of blinds
US5645118A · kind A · utility
8Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1995 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Dec 28, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/3225
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The device has a winding drum (5) mounted fixedly in terms of translation in a frame (1) and to insure that the cord is wound in even turns without overlapping there is of a traveling nut (6) engaging with a screw thread formed on the winding drum and an eyelet for guiding (8) the cord at its entry into the frame (1). The nut moves between an end of the cord (7a) fixed to the drum and the guiding eyelet (8). In the traveling nut is furthermore advantageously mounted a retractable stop (13) controlled by the cord (7) in order to oppose the rotation of the drum in the direction of unwinding when the cord is slack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.