A zebra curtain comprises a curtain rolling device, an upper rail, two fixing brackets, a lower rail and a curtain sheet. Two ends of the curtain sheet are respectively fixed on the upper rail and the curtain rolling device. The upper rail comprises a first shaft sleeve and a second shaft sleeve. The first shaft sleeve comprises a first protruding shaft, and the second shaft sleeve comprises a bearing, a second protruding shaft, a spring and a positioning piece. The curtain sheet comprises light-transmitting parts and light-impermeable portions arranged at intervals. The second protruding shaft moves inside the bearing by the spring pressing to be separated from the fixing bracket and to take off the zebra curtain, then adjusting the light-transmitting parts and the light-impermeable parts, and releasing the second protruding shaft to be axially connected with the fixing bracket, thereby completing the assembly of the zebra curtain.

A method and system for changing light intensity that passes through a window is disclosed. The method includes securing a sheet with a plurality of portions to a window, wherein each portion has a respective transparency, and arranging the sheet in a first position such that a first portion of the sheet with a first transparency is placed in front of the window. In addition, the system is configured to allow the sheet to move from the first position to a second position, such that a second portion of the sheet with a second transparency is placed in front of the window.

A modular pocket system for recessing into a ceiling is provided. The modular pocket system includes a plurality of panels including a top panel, a first side panel, and a second side panel, which are configured to be assembled to form a pocket having at least one lower open face, where each of the plurality of panels is formed of a wood-based material so that the panels can be cut to a desired length prior to assembly. The modular pocket system further includes a plurality of metal profiles including a first side profile configured to be coupled to the first side panel, and a second side profile configured to be coupled to the second side panel or the top panel, where the plurality of metal profiles includes at least one protruding feature for coupling to a component. Methods of building a modular pocket are also provided. The modular pocket system may be used for housing a rolled shade or screen, drapery and/or light fixture.

A roll-up wall system including a frame having a longitudinal axis, a first roller disposed in the frame, a second roller disposed in the frame, and a tube disposed in the frame. A screen may be connected to the tube. The screen may be supported by the first roller and the second roller. Further, the screen may be movable between a first configuration and a second configuration. In the first configuration, the screen is rolled around the tube which is spaced a first distance from the first roller. In the second configuration, the screen forms a barrier adjacent the frame, and the tube is spaced a second distance from the first roller. The second distance may be less than the first distance. Also, the roll-up wall system may be an acoustic barrier which achieves a Sound Transmission Class rating ranging from approximately 31 STC to approximately 53 STC.

A window covering for a window having a window frame. The window covering includes a headrail at the top of the window frame, and two window shades suspended from the headrail that can be selectively independently raised and lowered. Each of the window shades has a different light property. Accordingly the two window shades can be deployed selectively independently to achieve a desired property of light passing through the window shade.

An automated fire or smoke curtain/blinds system (2) includes a pelmet or a hood (4) adapted to be mounted on a wall or top of a windowpane, at least one motor (6) connected to at least one curtain/blinds holding device (10) such that the curtain/blinds 5 holding device (10) rolls when the motor (6) is operated, at least two curtain/blinds holding device wherein each curtain/blinds holding device are connected by a shaft or ball bearing, a movable curtain or blind with width of at least 8 meters attached to at least two curtain/blinds holding device, a movable curtain or blind (14A) of a predefined width and at the end of which is a bottom rail (14B), wherein the movable 10 curtain (14A) includes an self-closing escape door (14C) embedded within coverage area of the movable curtain (14A), and a control panel (16) to control up/down movement of the movable curtains.

A low-deflection roller tube of a motorized roller shade may include a first tube and a second tube that is attached to the first tube. The first tube may be configured to operably couple to the motor drive unit of the roller shade. The second tube may comprise a plurality of carbon fiber layers additively constructed on the first tube, and may be fabricated such that first and second longitudinal portions of the roller tube exhibit different material stiffness characteristics from each other. The first and second portions of the roller tube may be made of carbon fiber material having different tensile moduli. Layers of carbon fiber material in the first portion may be staggered with layers of carbon fiber material in the second portion at an interface between the first and second portions.

The present disclosure relates to an angled coupler for coupling a first shaft of a first roller assembly to a second shaft of a second roller assembly. The angled coupler may comprise a surface coupling assembly. The surface coupling assembly may include a top bracket and at least one vertical bracket. The at least one vertical bracket may be pivotably coupled to the top bracket and pivotable about a first axis. The angled coupler may further include a roller coupling assembly coupled to the surface coupling assembly. The roller coupling assembly may include a drive assembly configured to be coupled to at least one of the first shaft of the first roller assembly and the second shaft of the first roller assembly. The at least one of the first shaft and the second shaft may be configured to be pivotable about a second axis relative to the drive assembly, the first axis and the second axis being co-axial.

A multi-curtain assembly has curtain segments of a retractable curtain, the curtain segments having leading edges affixed to a bottom bar and extending between opened and closed positions by winding on and unwinding from a barrel assembly, each curtain segment being optionally connectable to the other curtain segment adjacent thereto by a fastener at respective adjacent edges of each curtain segment during unwinding. The multi-curtain assembly includes: a motor driving the barrel assembly of a first curtain segment, adjacent and further curtain segments meeting one another at an interface angle; and at least one curtain driving interface that passes along a rotational barrel driving force from the barrel assembly of the first one of the plurality of curtain segments. The driving interface being an interface for angle of 90 degrees, of less than 90 degrees, or greater than 90 degrees, or an interface for barrel assemblies at different heights.

A window covering is described. The window covering has a first tube and a second tube rotatably coupled to the first tube. The first tube and the second tube are disposed along parallel axes. A fabric is fastened at a first end to the first tube and at a second end to the second tube. A tensioning bar is slidably disposed along the fabric in between the first end and the second end. A bracket suspends the first tube and the second tube above the tensioning bar. The described window covering can be made to provide varying levels of privacy along an upper portion or lower portion of a window to be covered.