The invention provides a roller blind device with stepless adjustment comprising a roller blind base, a reel unit pivotally disposed on the roller blind base, and a blind fabric assembled on the reel unit, the reel unit comprises a first positioning unit, a second positioning unit, an outer tube accommodates the first positioning unit and the second positioning unit, a rotating shaft is assembled with the first positioning unit, and a first elastic member is disposed on the rotating shaft. Thereby, after a user combines the reel unit assembled with the blind fabric and the roller blind base, the user can drive the connected first elastic member to contract or loosen by adjusting the first positioning unit, so that a counterweight relationship between the reel unit and the blind fabric can be adjusted to achieve the roller blind device with stepless adjustment capable of adjusting a counterweight relationship.

Disclosed herein is a system for a window cowering. The system may comprise an elongate tube around which the window covering is able to be wound, first and second mounting members each comprising first and second spaced projections that extend from an internal wall of the elongate tube, and a reducer mounted to the first end of the elongate tube that includes first and second recesses that are configured to receive the first and second mounting members respectively to enable the reducer to be fastened to the first end of the elongate tube.

Disclosed herein is a system for a window cowering. The system may comprise an elongate tube around which the window covering is able to be wound, first and second mounting members each comprising first and second spaced projections that extend from an internal wall of the elongate tube, and a reducer mounted to the first end of the elongate tube that includes first and second recesses that are configured to receive the first and second mounting members respectively to enable the reducer to be fastened to the first end of the elongate tube.

A battery-operated motorized roller shade that can be charged through an installation bracket. The roller shade comprises a roller tube, a motor and at least one battery disposed within the roller tube, and a motor head disposed at a terminal end of the roller tube having a motor head interface. The installation bracket comprises an installation bracket interface and an exterior wall comprising an installation bracket connector adapted to removably connect to and electrically interface with a power adapter. The motor head is adapted to removably attach to the installation bracket wherein the installation bracket provides electrical power to the at least one battery within the roller tube when the installation bracket is connected to the power adapter.

A battery-operated motorized roller shade that can be charged through an installation bracket. The roller shade comprises a roller tube, a motor and at least one battery disposed within the roller tube, and a motor head disposed at a terminal end of the roller tube having a motor head interface. The installation bracket comprises an installation bracket interface and an exterior wall comprising an installation bracket connector adapted to removably connect to and electrically interface with a power adapter. The motor head is adapted to removably attach to the installation bracket wherein the installation bracket provides electrical power to the at least one battery within the roller tube when the installation bracket is connected to the power adapter.

A cordless retractable shade including an operating system for the shade that varies a biasing force of a spring to counterbalance the shade. The bottom rail of a retractable shade can be raised or lowered, and due to the operating system remains in any selected position of the covering between fully extended and fully retracted, without the use of operating cords. The system includes a method of negating and reversing the spring bias effect at a strategic position whereby the flexible vanes of the shade can be adjusted between open and closed.

A cordless retractable shade including an operating system for the shade that varies a biasing force of a spring to counterbalance the shade. The bottom rail of a retractable shade can be raised or lowered, and due to the operating system remains in any selected position of the covering between fully extended and fully retracted, without the use of operating cords. The system includes a method of negating and reversing the spring bias effect at a strategic position whereby the flexible vanes of the shade can be adjusted between open and closed.

A motorized window treatment may include a roller tube, a flexible material attached to the roller tube, and a motor drive unit. The motor drive unit may be disposed within a cavity of the roller tube. The motor drive unit may include a motor, a gear assembly, and a shaft stabilization member. The motor may include a drive shaft extending from a drive end of the motor and a rear shaft extending from a non-drive end of the motor. The drive shaft and the rear shaft may be configured to rotate about a longitudinal axis. The gear assembly may be operatively coupled to the roller tube and the drive shaft. The shaft stabilization member may be operatively coupled to the rear shaft. The shaft stabilization member may be configured to dampen axial and/or radial forces in the motor drive unit.

A motorized window treatment may include a roller tube, a flexible material attached to the roller tube, and a motor drive unit. The motor drive unit may be disposed within a cavity of the roller tube. The motor drive unit may include a motor, a gear assembly, and a shaft stabilization member. The motor may include a drive shaft extending from a drive end of the motor and a rear shaft extending from a non-drive end of the motor. The drive shaft and the rear shaft may be configured to rotate about a longitudinal axis. The gear assembly may be operatively coupled to the roller tube and the drive shaft. The shaft stabilization member may be operatively coupled to the rear shaft. The shaft stabilization member may be configured to dampen axial and/or radial forces in the motor drive unit.

An apparatus supports two blind rollers from a headrail in one of at least eight configurations. Each blind roller has a first end coupled to a first blind control mechanism and a second end coupled to a second blind control mechanism. The apparatus includes a bracket having a top flange for coupling the bracket to an end of the headrail. An inner face of the bracket has an upper engagement projection configured to secure at least one of: the first blind control mechanism for the upper blind roller in one of two mechanism orientations, and the second blind control mechanism for the upper blind roller. The inner face also has at least two lower engagement recesses, each configured to receive a lower engagement connector, the projection configured to secure at least one of the first blind control mechanism and the second blind control mechanism for the lower blind roller.