| 摘要 |
A double roll blind is provided to prevent damage and noise, keep private and to control sunshine of indoor space easily. A double roll blind comprises an operating unit(100) which is installed in order to spread a first screen(10) on the top of the window, a winding pipe in which turning unit rolling the first screen is equipped, a winding unit(200) in which the rotation apparatus rolling the first screen inside pipe is equipped, a blind(300) where a second screen spreads down from the front or rear part of the operating unit. |
