发明名称 |
Lateral-traction roller shade |
摘要 |
One end of the retraction spring of a lateral-traction roller shade is fastened to an interior rod that is stationary once it has been installed. The other end of the spring is fastened to a carrier bushing that rotates on the interior rod. The shaft of the shade is attached to the bushing and one end of a retention and clamping spring that surrounds the rod is fastened inside the bushing in such a way that the spring will rotate along with it. The other end of the spring is positioned in the path traveled by a drive segment on a sheave when the shade is lowered and in front of a drive rib on the bushing that is also positioned in the path. The raising of the shade is thus facilitated by the retraction spring.
|
申请公布号 |
US4535830(A) |
申请公布日期 |
1985.08.20 |
申请号 |
US19830528019 |
申请日期 |
1983.08.31 |
申请人 |
STARCKE ZUENDWARENFAB |
发明人 |
APPEL, HANS;HEIDENESCHER, HERMANN |
分类号 |
E06B9/90;(IPC1-7):E06B9/208 |
主分类号 |
E06B9/90 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|