Roller blind structure
US7174940B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 20, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Mar 30, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B2009/2447
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roller blind structure includes a roller shaft, a winding device with a linkage member attached at both ends of the roller shaft respectively to be actuated by an operating member for controlling the rolling or unrolling operation of a blind body. A pivoting rod is disposed at the outer side of the winding device and the linkage member thereof to be mounted to a support bracket fixed at both lateral sides of a window frame respectively. The support bracket thereof is provided with a series of retaining recesses concaved at preset positions thereon for holding in place a pair of clamping members astride side by side thereon, and the blind body has an extension piece of a proper length preset at the lower section thereof that, led backwards and upwards to pass between the two clamping members, is further extended to cover the upper side of the roller shaft with a sheltering cap formed thereon and securely located by the clamping members thereof. A counterweight article is placed at the curving turn of the blind body thereof to neatly separate the extension piece thereof from a decoration piece disposed at the front section of the blind body thereon wherein both the extension piece …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.