| 摘要 |
PURPOSE: A ceiling blind is provided to reduce production equipment and personnel cost by the reduction of manufacturing costs and production processes. CONSTITUTION: A ceiling blind comprises a winding device(10), a powertrain(20), and a bar(40). The winding device comprises a first shaft(11), a first chain gear(12), and a rotary roll(13). The first shaft supports the winding device. The first chain gear is integrated with the middle part of the first shaft. The rotary roll winds the blind(30). The powertrain comprises a timing belt(21) and a second chain gear(22). The timing belt engages with the first chain gear. The second chain gear has the same toothed gear as the first chain gear. |
