A magnetic child safety system for a mechanism of a chain-operated blind includes a safety device that can be coupled, via magnetic coupling means, preferably neodymium magnets, to a chain command device, wherein the magnetic coupling means are configured to decouple the safety device from the chain command device when a tension is applied to the chain loop in a vertical direction towards the ground, which is greater than or equal to a predetermined threshold fixed at 6 kg.

A safe curtain control assembly without screws is revealed. The safe curtain control assembly includes a stopping portion located on a wall of a cavity of a base and a raised-and-recessed structure is formed by the wall of the cavity and the stopping portion. A sleeve, an elastic member and a drive member are mounted within the cavity of the base in turn. A second stopping flange of the drive member is positioned in a recessed area between the wall of the cavity and the stopping portion for preventing the sleeve, the elastic member, and the drive member assembled from being released. Thereby the base, the sleeve, the elastic member and the drive member are secured firmly without screws so as to save time and cost for each assembly.

A motorized window shade system may comprise a shade tube in a pocket; a window shade attached to the shade tube; a motor configured to rotate the shade tube; an internal temperature sensor configured to measure a first temperature of the motor; an external temperature sensor configured to measure a second temperature of the pocket; and a controller configured to adjust a mode of the system from an override mode to an automated mode.

The safety device for a chain of a shade.

The invention proposes the development of a tamper-proof safety device configured for a chain of a shade, such as the roller type, which, when not being used, is fixed to the body of the chain, and when being used, the chain is free to slide in order to perform the raising and lowering operations of the roller shade.

A safety device for a curtain controller is provided. The safety device comprises a base, a bead chain wheel, and a cover. A shaft sleeve having a conical shape is disposed in a through hole of the base to connect a shaft's terminal and thus be fixed in a sleeving hole, having a shape to fit the shaft sleeve, of the bead chain wheel, so that the motions of the shaft sleeve and the bead chain wheel are linked. A bead chain is wound on the bead chain wheel. When the bead chain is pulled down, the shaft sleeve can drive the rotation of the bead chain wheel. The upper part of the cover is pivotally connected to the base, and the lower part of the cover buckles the base. Therefore, when the bead chain is instantly pulled down, the cover can be opened to drop the bead chain wheel.

A motorized window shade system may comprise a shade tube in a pocket; a window shade attached to the shade tube; a motor configured to rotate the shade tube; an internal temperature sensor configured to measure a first temperature of the motor, an external temperature sensor configured to measure a second temperature of the pocket; and a controller configured to adjust a mode of the system from an override mode to an automated mode.

A control apparatus for controlling rotation of a shaft about an axis includes a roller releasably and rotatably connected to a rear housing mount of a housing that is firmly secured to a wall, an operating cord looped on the roller, a front coupling member co-rotatably coupled with the shaft, and a rear coupling member releasably connected to the roller by a rearward resilient force of a resilient member and movable and non-rotatable relative to the front coupling member. The roller is moved, upon an excess downward pulling force, to a releasing position, where the rear coupling member is moved forwardly to release connection with the roller so as to permit removal of the roller from the housing.

The invention relates to an operating device (1) for a screen, comprising: a first operating mechanism with a first operating element (7) which is connected to a first movement transfer element connected by means of a first transmission to a drive element (60) for a screen shaft. The first operating mechanism is configured to convert a linear movement of the first operating element to a rotational movement of the drive element for operating the screen shaft in a first rotational direction (R). The operating device (1) further comprises a second operating mechanism comprising a second operating element (8) which is connected to a second movement transfer element connected by means of a second transmission to the drive element (60). The second operating mechanism is configured to convert a linear movement of the second operating element to a rotational movement of the drive element for operating the screen shaft in a second rotational direction (L) opposite to the first rotational direction.

A tension blind including a covering structure, a movable rail, two lifting cords, and two fixing units is disclosed. Each of the lifting cords is connected to a first fixture with an end, passes through the covering structure and the movable rail, and is connected to a fixing unit installed on a second fixture with the other end. The fixing unit includes a connected member fixed to the second fixture, and a connecting member which is connected to an end of the lifting cord and to the connected member detachably. If the lifting cord is forced by a non-vertical pull greater than a preset combined value between the connecting member and the connected member, the connecting member is automatically disconnected from the connected member in order to release the lifting cord.

A safety device for a curtain controller is provided. The safety device comprises a base, a bead chain wheel, and a cover. A shaft sleeve having a conical shape is disposed in a through hole of the base to connect a shaft's terminal and thus be fixed in a sleeving hole, having a shape to fit the shaft sleeve, of the bead chain wheel, so that the motions of the shaft sleeve and the bead chain wheel are linked. A bead chain is wound on the bead chain wheel. When the bead chain is pulled down, the shaft sleeve can drive the rotation of the bead chain wheel. The upper part of the cover is pivotally connected to the base, and the lower part of the cover buckles the base. Therefore, when the bead chain is instantly pulled down, the cover can be opened to drop the bead chain wheel.