| 摘要 |
<p>The roller blind has a wt. strip at the lower end of the blind sheet and a drive. Coupling components with a winding shaft located in a cassette, complementary coupling components with a drive component and complementary coupling components are arranged on a statically fixable pin. The coupling components of the drive component and of the winding shaft, with a rotary movement of the drive component in the winding up direction of the blind sheet, come into counterpoised engagement with engagement and coupling components of the winding shaft and of the pin. On the winding shaft are provided coupling components comprising two concentrically interengaged casings (16, 18) rotatively movable against one another and loaded by a torsion spring (17) against the rotary direction of the drive component (6) when the blind sheet is wound up.</p> |
