The invention relates to a system (1′) for closing an opening (2), the system (1′) comprising a scissor-type guide (20) comprising a fixed first end (20′) and a free, second end (20″); a tilt bracket (70) arranged spaced apart from the first end (20′) at a fixed distance in a first direction (D.sub.1) a plurality of lamellae (30), each lamella (30) having an elongate plate shape extending in a second direction (D.sub.2) the lamellae (30) being guidable between a retracted position, and an extended position; a conveyor (40) a tilt rail (60) for tilting said lamella (30) between an open state and a closed state; a tilt lever (80) connected to said free, second end (20″) of the scissor-type lamella guide (20), to the tilt rail (60) and to the conveyor (40);
wherein the tilt lever (80) comprises a guide member (85); and
wherein said system (1′) is configured for bringing the guide member (85) into contact with a curved guide surface (73), whereby the guide member (85) engages the curved guide surface (73) and is translated in a third direction (D.sub.3), such that the tilt lever (80) is rotated and translates the tilt rail (60) to rotate the lamellae (30)

An actuating system for a window shade includes an axle coupling part rotatable for raising or lowering a bottom part of a window shade, an arresting part and an arrester coupling part connected with each other, the arresting part having a braking state and a release state, a clutching part carried with the arrester coupling part and movable relative to the arrester coupling part between a retracted state where the clutching part is disengaged from the axle coupling part and an extended state where the clutching part is engaged with the axle coupling part, and an actuating wheel movably linked to the clutching part, the actuating wheel being rotatable in a first direction to urge the clutching part to move from the retracted state to the extended state, and in an opposite second direction to urge the clutching part to move from the extended state to the retracted state.

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 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.

We disclose a cordless window blind that includes at least one electromagnet within each slat. The slats may be inserted into orifices within rotatable slat mounting members on a vertical guide rail assembly. The orifices may house electrical connections which connect the electromagnets to at least one battery. The electromagnets may have the same polarity such that the electromagnet of one slat attracts the electromagnet of an adjacent slat. The magnetic attraction may move one slat toward the other slat causing the slats to move vertically along the guide rail assembly and either raise or lower the blinds. Alternatively, electromagnets on only one of two longitudinal edges of the slats may be actuated and attract a metal member on an adjacent slat. The magnetic attraction may cause the slats to tilt and rotate within the slat mounting members thus closing the blinds.

We disclose a cordless window blind that includes at least one electromagnet within each slat. The slats may be inserted into orifices within rotatable slat mounting members on a vertical guide rail assembly. The orifices may house electrical connections which connect the electromagnets to at least one battery. The electromagnets may have the same polarity such that the electromagnet of one slat attracts the electromagnet of an adjacent slat. The magnetic attraction may move one slat toward the other slat causing the slats to move vertically along the guide rail assembly and either raise or lower the blinds. Alternatively, electromagnets on only one of two longitudinal edges of the slats may be actuated and attract a metal member on an adjacent slat. The magnetic attraction may cause the slats to tilt and rotate within the slat mounting members thus closing the blinds.

We disclose a cordless window covering that may raise, lower, and tilt a plurality of slats without the use of lift cords. The covering may include an external frame with two vertical sides and a headrail. The covering may also include a plurality of slats, each of which may be connected to an adjacent slat by at least one string on each side and the headrail. This may allow the slats to hang freely when lowered. It may also allow all the slats to tilt when only the top slat has been mechanically tilted by a drive belt. The bottom slat may include a bottom bearing connector which may interact with a drive belt such that it may be raised and lowered when the drive belt rotates. Each slat may be connected to a bearing and a bearing connector that may be slidably connected to a guide channel.

We disclose a cordless window covering that may raise, lower, and tilt a plurality of slats without the use of lift cords. The covering may include an external frame with two vertical sides and a headrail. The covering may also include a plurality of slats, each of which may be connected to an adjacent slat by at least one string on each side and the headrail. This may allow the slats to hang freely when lowered. It may also allow all the slats to tilt when only the top slat has been mechanically tilted by a drive belt. The bottom slat may include a bottom bearing connector which may interact with a drive belt such that it may be raised and lowered when the drive belt rotates. Each slat may be connected to a bearing and a bearing connector that may be slidably connected to a guide channel.

Window covering assemblies having a housing supporting a first panel and having a second, movable panel are disclosed. The movable panel can have a frame positioned within the housing. The first and second panels can comprise alternating portions of different opacity and/or polarization. The assemblies include a drive assembly that is driven by a motor to move the movable panel relative to the first panel. As the movable panel moves with respect to the second panel, the alignment of the slats for each the panels changes, varying the amount of visible light that is allowed through the assembly.

Window covering assemblies having a housing supporting a first panel and having a second, movable panel are disclosed. The movable panel can have a frame positioned within the housing. The first and second panels can comprise alternating portions of different opacity and/or polarization. The assemblies include a drive assembly that is driven by a motor to move the movable panel relative to the first panel. As the movable panel moves with respect to the second panel, the alignment of the slats for each the panels changes, varying the amount of visible light that is allowed through the assembly.