Cord winder for a window-covering device
US8777148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2011 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Mar 22, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/3225
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a cord winder (1) for a window-covering device, said cord winder including: a drum (7) for winding a cord (40), said drum being rotatable around a first rotationally symmetrical axis (A-A′); and a means (12, 13b) for guiding the cord to the winding drum, the winding drum being rotatably mounted in a holder (2). Said cord winder is characterized in that it includes a rotatable roller (14) that is mounted onto the holder along a second rotationally symmetrical axis (B-B′). Said cord winder is moreover characterized in that it includes a friction area (23) wherein at least one coil of the cord, wound onto the winding drum, is in contact with the rotatable drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.