A manual drive assembly for a manually-operated window treatment based on a drive chain formed as a loop, may incorporate one or more intermediate tensioners disposed between two ends of the loop. The loop may be formed between a manual clutch mechanism coupled to the window treatment and an end tensioner. The one or more intermediate tensioners may serveto limit slack in the loop such that sides of the loop cannot be pulled to create a large loop, for example, having a gap of four inches or greater, between the hanging sides of the cord.

A blind lifting control module includes a transmitting wheel, an anti-backward unit and a driving unit disposed to a supporting unit. The transmitting wheel for connecting a blind reeled horizontal axle has ratchet portions respectively meshable with corresponding ratchet portions of an anti-backward wheel and a driving reel. A pull cord is reeled on the driving reel and has a free end passing through a thrust member and a hindering member, and is pulled to release the anti-backward wheel to permit lowering of a blind. The thrust member is turned by pulling of the pull cord to thrust the driving reel to mesh with the transmitting wheel for lifting the blind.

An improved roller shade system provides increased support, additional adjustments and/or increased safety. The slip plate allows the brake to slip forward and minimize damage to the clutch spring when a user pulls too hard on the hembar. The center drive mechanism extends through a bracket to allow the drive shaft to distribute power in both directions and drive two shade tube simultaneously. The tube adapter absorbs force from the spinning shade tube to minimize damage to the other components and the bead chain. The sprocket has a back wall supporting the sprocket, allowing the sprocket 130 to rest on the back flange of the sun gear to minimize pressure on the gears. An adjustment arm is adjusted to help level the shade band. The shade bands may be removed without disturbing the other shade bands in the system. A height of a hembar may be adjusted by rotating a rod within the hembar.

An actuation assembly for a continuous looped operator includes a slide assembly configured to laterally slide in a first direction and a second direction opposite the first direction, a first cord engagement member carried by the slide assembly, a second cord engagement member carried by the slide assembly, and a selector switch connected to the slide assembly, the selector switch receives a portion of the first cord engagement member and a portion of the second cord engagement member, the selector switch configured to move relative to the slide assembly between a first position and a second position.

A folding/unfolding device drives a reel shaft to rotate to thereby fold or unfold a shade of a window shade through a string. The folding/unfolding device includes a folding/unfolding unit is mounted to a top frame or a bottom frame of the shade and includes a screw rod on which a first gear is mounted. A second gear is mounted on the reel shaft and directly or indirectly meshes with the first gear. A single direction driving unit is mounted around and movable along the screw rod. When the single direction driving unit moves along the screw rod and towards the first gear, the screw rod is driven to rotate the reel shaft through the first and second gears. When the single direction driving unit moves along the screw rod and away from the first gear, the screw rod is not rotated.

The roller shade system provides increased support, additional adjustments and/or increased safety. The slip plate allows the brake to slip forward and minimize damage to the clutch spring when a user pulls too hard on the hembar. The center drive mechanism extends through a bracket to allow the drive shaft to distribute power in both directions and drive two shade tube simultaneously. The tube adapter absorbs force from the spinning shade tube to minimize damage to the other components and the bead chain. An adjustment arm is adjusted to help level the shade band. The shade bands may be removed without disturbing the other shade bands in the system. A height of a hembar may be adjusted by rotating a rod within the hembar.

The present disclosure concerns cable-covering tube assembly for a roller blind actuation cable, comprising a first cable-covering tube defining a cable-receiving cavity; and at least one tube connector extending at least partially in the cable-receiving cavity and comprising a cable-mounting portion couplable to the free end portion of the roller blind actuation cable; and a coupling portion couplable to the coupling portion of a similar tube connector. It also concerns a cable-covering tube system and a roller blind actuation assembly comprising first and second roller blind-operating systems having each a driving assembly and a unidirectional angular coupler, and a biasing member operatively coupling the driving assemblies and extending between their respective unidirectional angular couplers

A curtain assembly includes a curtain fabric, an upper supporting shaft, a lower supporting shaft, first through fourth coupling member and a connecting cord. The connecting cord sequentially extends between the first coupling member and the second coupling member to form a handle loop. The connecting cord passing through the first coupling member is arranged to pass through the coupling member and extend around the curtain fabric and connect with an external support. The connecting cord passing through the second coupling member is arranged to pass through the fourth coupling member extend around the curtain fabric connect with an external support. The curtain assembly can be operated between a shading position and a retracted position, wherein in the shading position, the curtain fabric is fully extended. In the retracted position, the curtain fabric is retracted to form a roll.

The geared window shade bracket comprises a sprocket having a ring gear on an inside circumference of the sprocket; a chain configured to be engaged with the sprocket such that, in response to pulling on the chain, the sprocket rotates; a sun gear that is configured to be restricted from rotation; one or more planet gears configured to rotate around the sun gear, wherein the one or more planet gears interface with the ring gear; and a planetary carrier configured to mate with the one or more planet gears. In response to the chain being pulled, the sprocket rotates, causing the planet gears to rotate, causing the planetary carrier to rotate, causing the hub to rotate, and causing a shade tube to rotate.

A motor drive system for operating a mechanism for raising and lowering window coverings includes a motor operating under electrical power and an electrically powered drive system. The motor drive system advances a continuous cord loop in response to positional commands from a controller. An input-output device includes a capacitive touch strip that receives user inputs along an input axis, and an LEDs strip aligned with the input axis. A group mode module communicates the positional commands to other motor drive systems within an identified group to operate respective other mechanisms of the other motor drive systems. A set control module enables user calibration of a top position and a bottom position of travel of the window covering. The input-output device extends vertically on the exterior of a housing for the motor drive system, and the housing supports input buttons of the group mode module and the set control module.