| 摘要 |
A box or casing for a roller blind comprises an extruded first channel 1 of inverted U-shape for rotatably mounting the roller. One leg 2b of the first channel.is provided with an extruded angular extension 11 to define a second inverted U-shaped channel for accommodating electric wiring or any operating mechanism for the blind. The downward-facing open end of the second channel may be closed by a separate releasable cover strip 12. |
