A covering for an architectural opening has a dual cord operating system. The covering may include a head rail, blind panels depending from the head rail, and an operating system. The operating system may include a housing connected to the head rail, a first drive assembly rotatably mounted within the housing and operable to move the blind panels between an extended configuration and a retracted configuration, and a second drive assembly rotatably mounted within the housing and operable to move the blind panels between a closed configuration and an open configuration.

A multistate resistance adjusting device for a non-pull cord window blind includes a base, an adjusting unit, and an elastic member. The base has a bottom trough provided on the periphery thereof with positioning grooves. The adjusting unit has a control pin provided with a transmission portion rotatable and vertically movable on the base and a positioning portion provided on the outer peripheral surface of the transmission portion and connected with an adjusting rod. When the positioning portion is engaged with one of the positioning grooves, the control pin is disabled from rotating relative to the base and adjusting the resistance applied on the lift transmission cord. When the control pin is moved upwardly to separate the positioning portion thereof from the positioning groove, the control pin is rotatable relative to the base, and the resistance applied on the lift transmission cord is adjustable through the adjusting rod.

A blind made up of a plurality of customisable rigid slats enables the blind to be fitted snugly within any window opening or doorway as a result of the locking adjustability of the width of such slats. The slats each include a pair of elongate slat panels movable relative to one another between retracted and extended conditions, such that the operative width of the blind is greater in the extended condition than in the retracted condition. The blind further includes one or more fasteners, located at or near each of a pair of minor ends of the slat panels, for releasably fixing the pair of slat panels to one another in the retracted condition, the extended condition and/or any condition there between, thereby to operatively restrict relative movement between the slat panels in such condition.

A wand assembly for use with an architectural-structure covering is disclosed. The wand assembly may include a first operating element (e.g., an operating cord) for moving the covering between extended and retracted positions and a second operating element (e.g., a tilt wand) for adjusting rotation of the covering between open and closed configurations. The first and second operating elements are coupled to a handle assembly via separate and distinct coupling mechanisms so that manipulation of the second operating element does not affect the first operating element thereby preventing twisting of the first operating element about the second operating element. The wand assembly may include a first, inner rotatable wand and a second, stationary outer wand. The inner wand is rotatable relative to the outer wand so that rotation of the inner wand does not rotate the outer wand, and hence the first operating element coupled to the outer wand.

A modular shade includes at least one module that consists of a head rail unit, a foot rail unit, at least one intermediate rail unit, and a plurality of slat components. A top slat may be coupled to the head rail unit and the intermediate rail unit, and a bottom slat component may be coupled to the intermediate rail unit and the foot rail unit. Further, additional intermediate rail units and intermediate slat components may be added to the module to alter the shape and size of the module, and the module may be coupled to one or more additional modules to change the overall shape and size of the modular shade.

The present invention relates to a lamella blind system comprising at least one lamella element having: a screen body made of a membrane material; a first rotatable mount with a first clamp engaging a first end of the screen body; and a second rotatable mount with a second clamp engaging a second end of the screen body; wherein the screen body is clamped between the first and second rotatable mounts; wherein the screen body is loaded with a pre-determined tension applied in an axial direction parallel to the axis of rotation; and wherein the lamella element is rotatable about an axis of rotation defined by the first and second rotatable mounts; a first support structure supporting the first rotatable mount; a second support structure supporting the second rotatable mount; and a drive mechanism for controlling the rotational position of the at least one lamella element, wherein the drive mechanism is a single-ended drive mechanism acting on only one of the first and second rotatable mounts of the at least one lamella element.

A vertical blind structure has: an upper track, at least one track set and a plurality of blades. The upper track with an adjustable length has an inner track and an outer track, and the inner track and the outer track are disposed on a same side and connected to each other with a connecting track. The inner and outer tracks of the upper track respectively have an engaging portion and further have a plurality of clamping members. The at least one track set has a plurality of sliding tracks parallel with each other, and each sliding track has a positioning groove and a corresponding limiting groove at two opposite sides and a storing groove at a bottom side. An end of each positioning groove of the sliding track comprises a sliding block.

This invention relates to a light regulating system comprising a rail, a plurality of lamellae, lamellae support members, a lamellae rotating actuator system, a measurement system, a detector, and a control unit, wherein an operating member is connected to the lamellae rotating actuator system to allow rotation of the lamellae by manual operation of the operating member, and wherein the control unit is configured to operate in a main automatic mode in which the lamellae rotating actuator system is autonomously driven, provided that the detector indicates that the lamellae support members are in a closed position and there is no indication from the measurement system that the lamellae have been rotated by a user.

A modular shade includes at least one module that consists of a head rail unit, a foot rail unit, at least one intermediate rail unit, and a plurality of slat components. A top slat may be coupled to the head rail unit and the intermediate rail unit, and a bottom slat component may be coupled to the intermediate rail unit and the foot rail unit. Further, additional intermediate rail units and intermediate slat components may be added to the module to alter the shape and size of the module, and the module may be coupled to one or more additional modules to change the overall shape and size of the modular shade.

A covering for an architectural opening has a dual cord operating system. The covering may include a head rail, blind panels depending from the head rail, and an operating system. The operating system may include a housing connected to the head rail, a first drive assembly rotatably mounted within the housing and operable to move the blind panels between an extended configuration and a retracted configuration, and a second drive assembly rotatably mounted within the housing and operable to move the blind panels between a closed configuration and an open configuration.