A curtain hanging assembly that consists of a curtain assembly able to effect horizontal opening and closing of curtains, and includes two elastic motor units provided with elastic feedback. Interactive dynamics between the two elastic motor units, through linear linkage, respectively cause torque forces produced to be in mutual opposition, enabling the let down area of the curtains to be naturally fixed at any height position.

A motorized window treatment for controlling the amount of daylight entering a space through a window includes a covering material, a drive shaft, and a motor coupled to the drive shaft for raising and lowering the covering material. The window treatment also includes a spring assist unit for assisting the motor by providing a torque that equals the torque provided by the weight on the cords that lift the covering material at a position midway between fully-open and fully-closed positions to minimize motor usage and conserve battery life. The window treatment may comprise a photosensor for measuring the amount of daylight outside the window and temperature sensors for measuring the temperatures inside and outside of the window. The position of the covering material may be automatically controlled in response to the photosensor and the temperature sensors, or in response to an infrared or radio-frequency remote control.

The retractable screen retention system is a guiding device for retractable screens that is sturdy, secured, and does not displace easily. To accomplish this, the system includes a track assembly, a guiding rail, and a sliding assembly. The sliding assembly further includes a retention housing and a weight bar. The design and components of the retention housing allows for movement of the weight bar and the retractable screen and yet keeps them retained in the system. Furthermore, the arrangement of the sliding assembly is designed to be flexible and doesn't allow it to come out of the track during deflective motions such as due to wind or some other physical impact. Thus, the system provides a track assembly with a guiding channel for the retractable screen that prevents the displacement of the retractable screen from the track while providing flexibility.

The retractable screen retention system is a guiding device for retractable screens that is sturdy, secured, and does not displace easily. To accomplish this, the system includes a track assembly, a guiding rail, and a sliding assembly. The sliding assembly further includes a retention housing and a weight bar. The design and components of the retention housing allows for movement of the weight bar and the retractable screen and yet keeps them retained in the system. Furthermore, the arrangement of the sliding assembly is designed to be flexible and doesn't allow it to come out of the track during deflective motions such as due to wind or some other physical impact. Thus, the system provides a track assembly with a guiding channel for the retractable screen that prevents the displacement of the retractable screen from the track while providing flexibility.

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.

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.

A counterbalancing device for a roller shade having a flexible sheet member and a roller shaft coupled to the flexible sheet member includes a stationary rod extending within the roller shaft, with the rod including a first end and a second end opposite the first end. The counterbalancing device also includes a rod adjuster coupled to the first end of the stationary rod and a spring winder positioned adjacent to the first end of the stationary rod. The rod adjuster is configured to selectively rotate the stationary rod and the spring winder is configured to rotate with the roller shaft. Additionally, the counterbalancing device also includes a spring having a first spring end coupled to the spring winder such that the first spring end rotates with the spring winder, and a second spring end coupled to the stationary rod such that the second spring end rotates with the stationary rod.

A counterbalancing device for a roller shade having a flexible sheet member and a roller shaft coupled to the flexible sheet member includes a stationary rod extending within the roller shaft, with the rod including a first end and a second end opposite the first end. The counterbalancing device also includes a rod adjuster coupled to the first end of the stationary rod and a spring winder positioned adjacent to the first end of the stationary rod. The rod adjuster is configured to selectively rotate the stationary rod and the spring winder is configured to rotate with the roller shaft. Additionally, the counterbalancing device also includes a spring having a first spring end coupled to the spring winder such that the first spring end rotates with the spring winder, and a second spring end coupled to the stationary rod such that the second spring end rotates with the stationary rod.

A covering for an architectural opening is provided. The covering may include a roller rotatable about a longitudinal axis, a shade associated with the roller, and an operating system operably associated with the roller. The operating system may include a base, a drive mechanism, a transmission, an actuator arm, and an engagement arm. The drive mechanism may be associated with the base to provide an input torque. The transmission may be associated with the drive mechanism to selectively transmit the input torque to the roller. The actuator arm may be associated with the base to indirectly set a rotation direction of the roller. The engagement arm may be associated with the base and engageable with the transmission.

A covering for an architectural opening is provided. The covering may include a roller rotatable about a longitudinal axis, a shade associated with the roller, and an operating system operably associated with the roller. The operating system may include a base, a drive mechanism, a transmission, an actuator arm, and an engagement arm. The drive mechanism may be associated with the base to provide an input torque. The transmission may be associated with the drive mechanism to selectively transmit the input torque to the roller. The actuator arm may be associated with the base to indirectly set a rotation direction of the roller. The engagement arm may be associated with the base and engageable with the transmission.