| 摘要 |
Blinds are provided to prevent abrasion generated between an elevating cord wound around the winder and a guide pin, and also prevent a supporting tape from interfering with shading blades being folded and unfolded. Blinds comprise a casing(30), an opening/shutting shaft(40), a driving unit, a winder(50), shading blades(60), a supporting tape(70), and a shading blade angle adjusting unit(80). The casing is fixed onto the wall. The opening/shutting shaft is rotated in the casing. The driving unit supplies power for driving the opening/shutting shaft. The winder is operated by the opening/shutting shaft. The shading blades having an elevating cord(90) wound around the winder is wound and withdrawn along with the elevating cord to be folded and unfolded. The supporting tape is connected to the shading blades. The shading blade angle adjusting unit is fixed to the casing and inserted in the opening/shutting shaft. As being rotated together with the opening/shutting shaft, the shading blade angle adjusting unit is distanced to control the angle of the shading blades according to a moving distance of the supporting tape. |
