In one aspect, a leveling assembly for adjusting the levelness or skew angle of a bottom rail of a covering for an architectural structure includes at least one movable or slideable component configured to be moved or slid laterally relative to the bottom rail or a headrail of the covering to adjust the length(s) along which one or more of the lift cords extend within the bottom rail or headrail, which, in turn, adjusts the effective length of such lift cord(s) defined between the bottom rail and the headrail of the covering. Such adjustment of the effective length(s) of the lift cord(s) results in the horizontal orientation or skew angle of the bottom rail being varied, thereby allowing the levelness of the bottom rail to be adjusted, as desired.

In one aspect, a leveling assembly for adjusting the levelness or skew angle of a bottom rail of a covering for an architectural structure includes at least one movable or slideable component configured to be moved or slid laterally relative to the bottom rail or a headrail of the covering to adjust the length(s) along which one or more of the lift cords extend within the bottom rail or headrail, which, in turn, adjusts the effective length of such lift cord(s) defined between the bottom rail and the headrail of the covering. Such adjustment of the effective length(s) of the lift cord(s) results in the horizontal orientation or skew angle of the bottom rail being varied, thereby allowing the levelness of the bottom rail to be adjusted, as desired.

A window blind assembly includes a frame, an input shaft rotatably disposed in the frame, a blind unit, a winding unit for placing the blind unit in a retracted state when the input shaft is rotated in a first rotational direction and for shifting the blind unit to an expanded state when the input shaft is rotated in a second rotational direction, a control unit operable to drive rotation of the input shaft in the first and second rotational directions, a force-assisting unit having a spring capable of exerting a spring force on the control unit to resist the weight of the blind unit acting thereon, and a brake unit connected to the input shaft and generating a frictional force to resist rotation of the input shaft in the second rotational direction.

A window blind assembly includes a frame, an input shaft rotatably disposed in the frame, a blind unit, a winding unit for placing the blind unit in a retracted state when the input shaft is rotated in a first rotational direction and for shifting the blind unit to an expanded state when the input shaft is rotated in a second rotational direction, a control unit operable to drive rotation of the input shaft in the first and second rotational directions, a force-assisting unit having a spring capable of exerting a spring force on the control unit to resist the weight of the blind unit acting thereon, and a brake unit connected to the input shaft and generating a frictional force to resist rotation of the input shaft in the second rotational direction.

A Venetian blind to be fitted to an architectural frame, including a first rail; a second rail; and a transfer mechanism, wherein: the first rail includes a tilt controller configured to control tilting of the blind, the second rail includes a control actuator, and the transfer mechanism mechanically couples the control actuator and the tilt controller to transfer movement of the control actuator to the tilt controller.

A Venetian blind to be fitted to an architectural frame, including a first rail; a second rail; and a transfer mechanism, wherein: the first rail includes a tilt controller configured to control tilting of the blind, the second rail includes a control actuator, and the transfer mechanism mechanically couples the control actuator and the tilt controller to transfer movement of the control actuator to the tilt controller.

A pull-cord control device for a curtain without an operation cord includes a pull-cord (3), a base (1), and a pressing plate (2) rotatably mounted to the base through a rotation shaft (42). The base forms first friction shafts (11). The pressing plate forms second friction shafts (21) staggered with the first friction shafts. The pressing plate forms a fixing pole (41). A first end of the pull-cord is connected to a retractable-cord device (5), and a second end of the pull-cord extends between the first and second friction shafts, and is connected to a curtain body (6) after extending about the fixing pole. When the curtain body moves up and down, the pressing plate is rotated between a clamping position and a loose position. When the pressing plate is in the clamping portion, the second friction shafts actuate the pull-cord to wander between the first and second friction shafts.

A pull-cord control device for a curtain without an operation cord includes a pull-cord (3), a base (1), and a pressing plate (2) rotatably mounted to the base through a rotation shaft (42). The base forms first friction shafts (11). The pressing plate forms second friction shafts (21) staggered with the first friction shafts. The pressing plate forms a fixing pole (41). A first end of the pull-cord is connected to a retractable-cord device (5), and a second end of the pull-cord extends between the first and second friction shafts, and is connected to a curtain body (6) after extending about the fixing pole. When the curtain body moves up and down, the pressing plate is rotated between a clamping position and a loose position. When the pressing plate is in the clamping portion, the second friction shafts actuate the pull-cord to wander between the first and second friction shafts.

A slat collection device for an insulated glass assembly having an internal blind. The slat collection device includes a set of blinds slats with self-alignment slat ends, a bottom rail arranged at the bottom of the set of blinds slats, and two self-alignment channels arranged at opposite ends of the bottom rail. Each of the self-alignment channels has two side walls projecting outward and perpendicular to a rear wall. First and second horizontal connectors are mounted to the two self-alignment channels and to open ends disposed at the opposite ends of the bottom rail. When the set of blinds slats are stacked within the two self-alignment channels, each slat is aligned between the slat directly below on which it sits and the slat directly above which sits on it to prevent the slats from getting staggered front and back in the self-alignment channels when the blinds assembly is drawn.

The blind includes an upper beam, a rope winder and a lifting rope. The bottom wall of the upper beam includes a through hole for the lifting rope to penetrate therethrough. The rope winder is arranged inside the upper beam and includes a top plate and a bottom plate. A winding wheel for winding the lifting rope is arranged between the top and bottom plates. The stringing apparatus of the present invention is arranged on the bottom wall of the upper beam and protrudes out of the top surface of the bottom wall. The relationship between a vertical distance from the bottom surface of the top plate of the rope winder to the top surface of the rope winder and a distance from the top surface of the stringing apparatus to the top surface of the bottom wall of the upper beam satisfies the relation of 2-5:1.