A load control system may include control devices for controlling electrical loads. The control devices may include load control devices, such as a lighting device for controlling an amount of power provided to a lighting load, and input devices, such as a remote control device configured to transmit digital messages comprising lighting control instructions for controlling the lighting load via the lighting device. The remote control device may communicate with the lighting device via an intermediary device, such as a hub device. The remote control device may detect a user interface event, such as a button press or a rotation of the remote control device. The remote control device or the hub device may determine whether to transmit digital messages to as unicast messages or multicast messages based on the type of user interface event detected.

A curtain handle system includes a first layer configured to mate with a second layer so that the first and second layers attach to curtain disposed therebetween. A curtain handle system includes a curtain attachment element and a user handle configured to interface with and temporarily engage the curtain attachment element.

A motorized drive device includes an electric motor, a first holding device and a first switching mechanism. In a first position of the first mechanism, a first guide wheel of the first holding device is offset relative to a second guide wheel of the first holding device, so as to hold the motorized drive device relative to a rail by supporting the first and second guide wheels with respective first and second tracks of the rail. Furthermore, in a second position of the first mechanism, the first guide wheel is positioned opposite the second guide wheel, in a direction of movement of the motorized drive device along the rail, so as to insert or extract the first and second guide wheels into or from the rail, through a slot of the rail.

A motorized drive device includes an electric motor, a first holding device and a first switching mechanism. In a first position of the first mechanism, a first guide wheel of the first holding device is offset relative to a second guide wheel of the first holding device, so as to hold the motorized drive device relative to a rail by supporting the first and second guide wheels with respective first and second tracks of the rail. Furthermore, in a second position of the first mechanism, the first guide wheel is positioned opposite the second guide wheel, in a direction of movement of the motorized drive device along the rail, so as to insert or extract the first and second guide wheels into or from the rail, through a slot of the rail.

A motorized drive device includes a housing, electric motor, drive wheel, first and second holding devices, first elastic return element, drive unit inside the housing, and switching mechanism. The drive unit includes a casing, the electric motor and the drive wheel. The drive wheel is supported on a rail running surface, by the first elastic return element. With the motor activated, the casing inclines inside the housing relative to a median plane of the housing. The switching mechanism drives a first guide wheel of the first holding device between first and second positions, in which the motorized drive device is mounted and dismounted, respectively, relative to the rail. In the first position with the electric motor activated, the drive wheel is supported on the rail running surface, by the first elastic return element which is supported on a wall in the housing and is rotated by the electric motor.

A motorized drive device includes a housing, electric motor, drive wheel, first and second holding devices, first elastic return element, drive unit inside the housing, and switching mechanism. The drive unit includes a casing, the electric motor and the drive wheel. The drive wheel is supported on a rail running surface, by the first elastic return element. With the motor activated, the casing inclines inside the housing relative to a median plane of the housing. The switching mechanism drives a first guide wheel of the first holding device between first and second positions, in which the motorized drive device is mounted and dismounted, respectively, relative to the rail. In the first position with the electric motor activated, the drive wheel is supported on the rail running surface, by the first elastic return element which is supported on a wall in the housing and is rotated by the electric motor.

A load control system may include control devices for controlling electrical loads. The control devices may include load control devices, such as a lighting device for controlling an amount of power provided to a lighting load, and input devices, such as a remote control device configured to transmit digital messages comprising lighting control instructions for controlling the lighting load via the lighting device. The remote control device may communicate with the lighting device via an intermediary device, such as a hub device. The remote control device may detect a user interface event, such as a button press or a rotation of the remote control device. The remote control device or the hub device may determine whether to transmit digital messages to as unicast messages or multicast messages based on the type of user interface event detected.

A curtain structure assembled with an accessory (900) includes a curtain rod (1), a frame (2, 3), and a coupling member (4A, 4B, 4C). The frame (2, 3) is detachably installed and movably fixed to an end of the curtain rod (1), and the fixed frame (2, 3) has a protruding structure (T1 or T2) protruding from an end of the curtain rod (1), and the protruding structure (T1 or T2) includes a fixed portion (25 or 35) with a driven wheel (23 or 24), and the coupling member (4A, 4B, 4C) is detachably connected between the protruding structure (T1 or T2) and the connected accessory (900) is disposed between the curtain rod (1) and the accessory (900). The electric fan has the effects of installing or moving the accessory (900) and the coupling member (4A, 4B, 4C), and adjusting the tightness of the belt effectively.

A curtain structure assembled with an accessory (900) includes a curtain rod (1), a frame (2, 3), and a coupling member (4A, 4B, 4C). The frame (2, 3) is detachably installed and movably fixed to an end of the curtain rod (1), and the fixed frame (2, 3) has a protruding structure (T1 or T2) protruding from an end of the curtain rod (1), and the protruding structure (T1 or T2) includes a fixed portion (25 or 35) with a driven wheel (23 or 24), and the coupling member (4A, 4B, 4C) is detachably connected between the protruding structure (T1 or T2) and the connected accessory (900) is disposed between the curtain rod (1) and the accessory (900). The electric fan has the effects of installing or moving the accessory (900) and the coupling member (4A, 4B, 4C), and adjusting the tightness of the belt effectively.

A load control system may include control devices for controlling electrical loads. The control devices may include load control devices, such as a lighting device for controlling an amount of power provided to a lighting load, and input devices, such as a remote control device configured to transmit digital messages comprising lighting control instructions for controlling the lighting load via the lighting device. The remote control device may communicate with the lighting device via an intermediary device, such as a hub device. The remote control device may detect a user interface event, such as a button press or a rotation of the remote control device. The remote control device or the hub device may determine whether to transmit digital messages to as unicast messages or multicast messages based on the type of user interface event detected.