Window blind assembly and cord guiding device thereof
US8863812B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 4, 2013 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Feb 9, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/3222
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A window blind assembly includes a securing seat, a blind unit, a blind control device and two cord guiding devices interposing the blind control device. Each of the cord guiding devices includes a wheel holder and a guiding wheel. The wheel holder includes a resilient arm unit and two holder walls. Each of the holder walls is formed with an engaging groove having a receiving portion and a constricted portion. The guiding wheel includes two axle portions rotatably and respectively received in the receiving portions of the engaging grooves in the holder walls, and a cord winding portion interconnecting the axle portions and permitting winding of a corresponding cord thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.