Apparatus and method for assembling sheet material mounting device components
US6817399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2002 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | May 22, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47H5/14
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention provides a sheet material mounting system having a lifting sleeve, a center support bracket, an engaging rod and two or more lifting cords. The outer circumference of a left portion of the lifting sleeve is greater than the outer portion of a right portion of the lifting sleeve. The outer surface of the lifting sleeve forms a smooth concave surface. The lifting sleeve is configured to support a winding tube during operation of the mounting system. The lifting sleeve abuts against the center support bracket. The center support bracket includes guides for directing the lift cords onto the lifting sleeve. The lift cords are attached to a bottom leveling system for ensuring that the shade material remains parallel during system operation. As the shade is raised, the lifting cords wind around the outer surface of the lifting sleeve. The center support guides ensure that the lifting cords contact the lifting cone at an angle ensuring that the cords are wound (and unwound) unstacked during mounting system operation. The cords are wound in unison and the shade remains parallel during raising and lowering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.