The invention concerns an operator assembly for a movable barrier. The operator assembly includes a motor with a motor output shaft, an output drive to transfer drive to the movable barrier, and a transmission assembly to transfer drive from the motor output shaft to the output drive. The output drive is rotatable in a clockwise direction and in a counterclockwise direction, depending on whether the movable barrier is closing or opening. The output drive comprises a crown wheel rotatable about an output drive axis centre of rotation and having an outer face provided with a plurality of attachment points spaced from said centre of rotation. The operator assembly also includes an output drive adaptor apparatus, the output drive adaptor apparatus including: one or more adaptor portions configured to be removably mounted to the crown wheel through engagement with the plurality of attachment points, and an output drive portion that is concentric with the crown wheel and arranged to drive motion of the movable barrier.

A roller blind apparatus comprising a control apparatus; an idle end; and a roller tube located between the control apparatus and the idle end, wherein the control apparatus is coupled to a first corner bracket; the idle end includes one of an idle end spindle and an aperture and a second corner bracket includes the other the idle end spindle and an aperture, wherein the idle end spindle is rotatably mounted within the aperture such that the idle end is rotatably coupled to the second corner bracket; a first frame forming element is located between the first and second brackets; and wherein the frame forming element covers the roller tube.

A roller blind apparatus comprising a control apparatus; an idle end; and a roller tube located between the control apparatus and the idle end, wherein the control apparatus is coupled to a first corner bracket; the idle end includes one of an idle end spindle and an aperture and a second corner bracket includes the other the idle end spindle and an aperture, wherein the idle end spindle is rotatably mounted within the aperture such that the idle end is rotatably coupled to the second corner bracket; a first frame forming element is located between the first and second brackets; and wherein the frame forming element covers the roller tube.

The present invention has disclosed a clutch, a motor device, a curtain control device and a curtain. The clutch comprises a drive force outputting part, a transmission part, sleeved between the drive force outputting part, and a clutch piece mounting position is provided on the transmission part; a drive force receiving part with a driving force transmitting part, arranged on the side of the transmission part away from the driving force receiving part; a clutch control part, disposed on one side of the driving force receiving part, comprising a combination piece, disposed on the drive force receiving part; a separation accommodation zone, arranged between two combination surfaces; a clutch piece, arranged on the clutch piece mounting position. The embodiments of the present invention effectively solve the problems resulting from use of magnetic separation in realizing engaging and disengaging functions of an existing clutch.

The present invention has disclosed a clutch, a motor device, a curtain control device and a curtain. The clutch comprises a drive force outputting part, a transmission part, sleeved between the drive force outputting part, and a clutch piece mounting position is provided on the transmission part; a drive force receiving part with a driving force transmitting part, arranged on the side of the transmission part away from the driving force receiving part; a clutch control part, disposed on one side of the driving force receiving part, comprising a combination piece, disposed on the drive force receiving part; a separation accommodation zone, arranged between two combination surfaces; a clutch piece, arranged on the clutch piece mounting position. The embodiments of the present invention effectively solve the problems resulting from use of magnetic separation in realizing engaging and disengaging functions of an existing clutch.

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 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 gearbox that is configured to transmit torque from a motor shaft to a load shaft includes a limit mechanism The limit mechanism includes a strain wave gear including a circular spline, a flex spline and a wave generator. The circular spline is fixed to a housing of the gearbox coaxially with the load shaft, the flex spline is formed on a flexible rim of a rotatable cup that is coaxial with the load shaft, and the wave generator is coupled to the load shaft so as to rotate at the same angular velocity. The limit mechanism further includes at least one limiter structure coupled to the rotatable cup and at least one fixed switch, and is configured to stop rotation of the load shaft when the limiter structure engages the fixed switch.

A motorized window treatment provides a low-cost solution for controlling the amount of daylight entering a space through a window. The window treatment includes a covering material, a drive shaft, at least one lift cord rotatably received around the drive shaft and connected to the covering material, 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, which helps to minimize motor usage and conserve battery life if a battery is used to power the motorized window treatment. 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 to save energy, or may also be controlled in response to an infrared or radio-frequency remote control.

The enclosure comprises: a partition (1) of panels (2) provided with longitudinal grooves (3) and a space for mounting a door (6); and a door (6) comprising: an upper box (7); and two vertical posts (9) with vertical guides (30) for moving a closing element (10), in addition to longitudinal channels (15) defining passages, with the longitudinal grooves (3), for housing fastening elements (16, 17) that can be vertically moved between a position wherein the door (6) is held and a position wherein the door (6) is released. The door comprises means for ensuring peripheral tightness in the closed position.