| 摘要 |
The present invention relates to a roll blind comprising a winding roll device formed in the bottom of a vertically suspended curtain paper to wind the curtain paper and a shaft to lift the winding roll device in the bottom by winding or unwinding a pulling wire vertically extended from a head rail in the top. The present invention comprises: an opening and closing gear having a cylindrical drum interlocked with the shaft to rotate and extended in an axial line direction; a frictional spring having a protrusion end part fitted in the outer circumference of the drum and protruding in a radial direction; and a tube wheel rotated while being interlocked with the frictional spring by an insertion groove part where the protrusion end part is inserted. The curtain paper comprises front and rear papers horizontally arranged in the front and rear sides at a predetermined interval and a blind paper to connect the front and rear papers. The top of the rear paper is relatively fixed on the head rail to be horizontally fixed, the top of the front paper circumferentially moves according to the rotation of the tube wheel to simultaneously adjust the horizontal and vertical intervals between the front and rear papers, and the inclined angle of the blind paper is adjusted by adjusting the horizontal and vertical intervals between the front and rear papers; thereby controlling daylight. |
