| 摘要 |
The invention relates to a roll blind which comprises the components of: a head guide rail (110) which is fixedly arranged on a window frame; a winding rod (120) which is arranged on the head guide rail (110) and can rotate; one piece of curtain cloth (1) of which the ends are respectively combined with the head guide rail (110) and the winding rod (120); a loading part (40) which is arranged below the window cloth (1) and sustains rotation of a natural guide and tension state of the curtain cloth (1) in movement of the curtain cloth; and a driving part (130) which controls driving of the winding rod (120). The roll blind of the invention is characterized in that: the head guide rail (110) forms a front part (111) in a manner that packaging the winding rod (120) below the winding rod (120) through a central position; a distance (s) between the front part (111) at one end of the fixed curtain cloth (1) and the winding rod (120) at the other end of the fixed curtain cloth (1) is same with the distance (s) between a front curtain sheet and a back curtain sheet (1a,1b) of the curtain cloth (1) that lifts through the loading part (40), so that sunlight cannot penetrate when the curtain cloth (1) is put down for insulating the sunlight. |
