In one aspect, a cordless covering may include a roller and a shade panel configured to be wound around and unwound from the roller to move the shade panel between an extended position and a retracted position. The shade panel may include a front panel, a back panel, and a plurality of vanes extending between the front and back panels. The covering may also include a roller shaft extending through the roller and a tilt adjustment mechanism coupled to the roller shaft. The tilt adjustment mechanism may be configured to rotate the roller shaft to adjust a tilt angle of the vanes between an opened position and a closed position.

A window covering in accordance with the invention includes a gearbox assembly comprising a controller incorporated into the gearbox, a motor incorporated into the gearbox, and an external sensor is provided to provide external inputs to the controller in the gearbox assembly. The external sensor may include a security sensor, a temperature sensor, a light sensor, an audio sensor, a smoke detector, a carbon monoxide detector, or a humidity sensor. The controller is further configured to relay sensor information to a remote HVAC system or security system.

A window covering in accordance with the invention includes a gearbox assembly comprising a controller incorporated into the gearbox, a motor incorporated into the gearbox, and an external sensor is provided to provide external inputs to the controller in the gearbox assembly. The external sensor may include a security sensor, a temperature sensor, a light sensor, an audio sensor, a smoke detector, a carbon monoxide detector, or a humidity sensor. The controller is further configured to relay sensor information to a remote HVAC system or security system.

In one aspect, a cordless covering may include a roller and a shade panel configured to be wound around and unwound from the roller to move the shade panel between an extended position and a retracted position. The shade panel may include a front panel, a back panel, and a plurality of vanes extending between the front and back panels. The covering may also include a roller shaft extending through the roller and a tilt adjustment mechanism coupled to the roller shaft. The tilt adjustment mechanism may be configured to rotate the roller shaft to adjust a tilt angle of the vanes between an opened position and a closed position.

In one aspect, a cordless covering may include a roller and a shade panel configured to be wound around and unwound from the roller to move the shade panel between an extended position and a retracted position. The shade panel may include a front panel, a back panel, and a plurality of vanes extending between the front and back panels. The covering may also include a roller shaft extending through the roller and a tilt adjustment mechanism coupled to the roller shaft. The tilt adjustment mechanism may be configured to rotate the roller shaft to adjust a tilt angle of the vanes between an opened position and a closed position.

The present disclosure provides a hollow louver top operating system comprising a rotating mechanism and a lifting mechanism, wherein the rotating mechanism is used for opening and closing louver blades of a curtain, and the lifting mechanism is used for lifting the curtain up and down, wherein the rotating mechanism comprises a rotating rope and a top rotating controller, and the rotating rope is connected between the top rotating controller and one side of the curtain, wherein the lifting mechanism comprises a lifting rope and a top lifting controller, and the lifting rope is connected between the top lifting controller and the other side of the curtain, and wherein the curtain is located inside a window frame, the top rotating controller and the top lifting controller are disposed in the window frame at the upper portion of the curtain.

A window covering includes a first rail and a plurality tiltable slats. The slats can be connected to a slat tilt control mechanism positioned within the first rail. The slat tilt control mechanism can be configured to tilt the slats to a tilted position (e.g. a closed position, or orientation) during the lifting or lowering of the window covering. The slat tilt control mechanism can also be configured to tilt the slats from a tilted position to an open position, or horizontal orientation, during the lifting or lowering of the window covering material.

A window covering includes a first rail and a plurality tiltable slats. The slats can be connected to a slat tilt control mechanism positioned within the first rail. The slat tilt control mechanism can be configured to tilt the slats to a tilted position (e.g. a closed position, or orientation) during the lifting or lowering of the window covering. The slat tilt control mechanism can also be configured to tilt the slats from a tilted position to an open position, or horizontal orientation, during the lifting or lowering of the window covering material.

The disclosure is related to a blind without pull cord and an angle adjustment device thereof, wherein the angle adjustment device is configured to adjust angles of slats of a blind and includes at least one adjustment assembly and a shaft. The at least one adjustment assembly includes a mount base, a string pulley, a first gear and a first string. The string pulley is pivotably disposed on the mount base. The first gear is fixed on the string pulley. The first string is installed on the string pulley and is configured to connect the slats. The shaft includes a lengthy part and at least one outer tooth fixed on the lengthy part, wherein the at least one outer tooth is engaged with the first gear. An axis of the first gear is perpendicular to an axis of the shaft.