Abstract: A winding device for a blind includes two pivot seats, two limiting members respectively pivoted to the pivot seats, a spring member having first and second end portions respectively connected to the limiting members, an outer tube sleeved on the spring member, and two tubular sleeves connected between one of the limiting members and the outer tube. When the tubular sleeves are driven to rotate by a blind body of the blind, one of the tubular sleeves drives one limiting member to rotate synchronously, but the other tubular sleeve cannot drive the other limiting member to rotate therealong, such that the first and second end portions of the spring member are twisted to provide a resilient restoring force for balancing and positioning the blind body.

Abstract: A triple-shade roller blind includes a reel shaft for reeling a curtain having front and rear shade layers and a plurality of shading strips interconnecting the front and rear shade layers, and an adjusting assembly having a rotatable coupling member journalled on a pivot pin and coupled with the reel shaft to rotate the same, and an adjusting rod extending downwardly of and rotatable relative to the coupling member. A movement converting mechanism is disposed to convert rotation of the adjusting rod into the rotation of the coupling member as well as the reel shaft so as to adjust the distance between the front and rear shade layers and the shading areas of the shading strips.

Abstract: A triple-shade roller blind includes a reel shaft for reeling a curtain having front and rear shade layers and a plurality of shading strips interconnecting the front and rear shade layers, and an adjusting assembly having a rotatable coupling member journalled on a pivot pin and coupled with the reel shaft to rotate the same, and an adjusting rod extending downwardly of and rotatable relative to the coupling member. A movement converting mechanism is disposed to convert rotation of the adjusting rod into the rotation of the coupling member as well as the reel shaft so as to adjust the distance between the front and rear shade layers and the shading areas of the shading strips.

Abstract: A safety structure is provided for a Roman shade. A shade cloth forms folds, each carrying at least one cord ring through which a lift cord that functions to raise a shade cloth up and down extends. The cord ring is made of a flexible material having a desired stiffness and is constructed to each form an end overlapped section so that when a force that exceeds weight of the shade cloth is applied to the lift cord, the overlapped section of the cord ring is broken to allow the cord ring to detach from the shade cloth.