A support structure includes a rail configured to provide support for a shading structure of an electrically-driven window shade, the rail having a cavity adapted to receive an electric motor and being fixedly connected with a battery case holder having a plurality of first electric connectors, and a battery case having a plurality of second electric connectors, the battery case having an interior configured to receive one or more battery cells. The battery case is removable from the battery case holder and the rail for accessing to the interior of the battery case, and is connectable with the battery case holder so that the first electric connectors respectively contact with the second electric connectors for supplying electric power through the first and second electric connectors to an electric motor installed in the cavity of the rail.

A support structure includes a rail configured to provide support for a shading structure of an electrically-driven window shade, the rail having a cavity adapted to receive an electric motor and being fixedly connected with a battery case holder having a plurality of first electric connectors, and a battery case having a plurality of second electric connectors, the battery case having an interior configured to receive one or more battery cells. The battery case is removable from the battery case holder and the rail for accessing to the interior of the battery case, and is connectable with the battery case holder so that the first electric connectors respectively contact with the second electric connectors for supplying electric power through the first and second electric connectors to an electric motor installed in the cavity of the rail.

In various aspects, a covering for an architectural structure includes a bottom rail assembly that can be efficiently and effectively assembled during manufacturing of the covering. Specifically, in one embodiment, the bottom rail is configured such that one or more operating system components of the covering can be mounted within and directly supported by the bottom rail. In addition, a separate cover may be coupled to the bottom rail during the assembly process.

In various aspects, a covering for an architectural structure includes a bottom rail assembly that can be efficiently and effectively assembled during manufacturing of the covering. Specifically, in one embodiment, the bottom rail is configured such that one or more operating system components of the covering can be mounted within and directly supported by the bottom rail. In addition, a separate cover may be coupled to the bottom rail during the assembly process.

An actuating system for a window shade includes an axle coupling part rotatable for raising or lowering a bottom part of a window shade, an arresting part and an arrester coupling part connected with each other, the arresting part having a braking state and a release state, a clutching part carried with the arrester coupling part and movable relative to the arrester coupling part between a retracted state where the clutching part is disengaged from the axle coupling part and an extended state where the clutching part is engaged with the axle coupling part, and an actuating wheel movably linked to the clutching part, the actuating wheel being rotatable in a first direction to urge the clutching part to move from the retracted state to the extended state, and in an opposite second direction to urge the clutching part to move from the extended state to the retracted state.

An actuating system for a window shade includes an axle coupling part rotatable for raising or lowering a bottom part of a window shade, an arresting part and an arrester coupling part connected with each other, the arresting part having a braking state and a release state, a clutching part carried with the arrester coupling part and movable relative to the arrester coupling part between a retracted state where the clutching part is disengaged from the axle coupling part and an extended state where the clutching part is engaged with the axle coupling part, and an actuating wheel movably linked to the clutching part, the actuating wheel being rotatable in a first direction to urge the clutching part to move from the retracted state to the extended state, and in an opposite second direction to urge the clutching part to move from the extended state to the retracted state.

A screening device includes a rail, a drive shaft, a motorized drive device, including an electromechanical actuator, and an autonomous electrical power supply device, including a battery module. The battery module includes first and second mounting brackets, each arranged inside the rail and configured to hold the battery module inside the rail. The actuator includes third and fourth mounting brackets, each arranged inside the rail and configured to hold the actuator inside the rail. The brackets are identical. Furthermore, each of the brackets includes an opening, configured to accommodate the drive shaft.

A screening device includes a rail, a drive shaft, a motorized drive device, including an electromechanical actuator, and an autonomous electrical power supply device, including a battery module. The battery module includes first and second mounting brackets, each arranged inside the rail and configured to hold the battery module inside the rail. The actuator includes third and fourth mounting brackets, each arranged inside the rail and configured to hold the actuator inside the rail. The brackets are identical. Furthermore, each of the brackets includes an opening, configured to accommodate the drive shaft.

A window blind includes a headrail, a control device mounted in the headrail, a rotating rod, a blind body, a bottom rail, two lift cords, and two cord winding assemblies mounted on the rotating rod. Subject to the technical feature that the lift cords have the respective one ends thereof connected to the sliding guides of the respective cord winding assemblies and the respective other ends thereof extending along the respective lead angle sections of the respective openings of the respective rotating members and connected to the respective cord insertion holes of the headrail, when the blind body is in the unfolded or folded state, the clamping force produced on the lift cords between the sliding guides and the openings of the respective rotating members can be reduced, preventing the lift cords from being pushed down to break, which greatly increases the service life of the window blind.

A window blind includes a headrail, a control device mounted in the headrail, a rotating rod, a blind body, a bottom rail, two lift cords, and two cord winding assemblies mounted on the rotating rod. Subject to the technical feature that the lift cords have the respective one ends thereof connected to the sliding guides of the respective cord winding assemblies and the respective other ends thereof extending along the respective lead angle sections of the respective openings of the respective rotating members and connected to the respective cord insertion holes of the headrail, when the blind body is in the unfolded or folded state, the clamping force produced on the lift cords between the sliding guides and the openings of the respective rotating members can be reduced, preventing the lift cords from being pushed down to break, which greatly increases the service life of the window blind.