Abstract: A control system for a shutter is disclosed. The shutter includes a force-bearing mechanism and a plurality of slats. The control system includes a power source, a driving device connected to the power source to output a first driving force, which drives the force-bearing mechanism to rotate the slats, and a clutch mechanism, which includes an input member and an output member which are drivable to be connected together for synchronous operation, or to be mutually disconnected for independent operation. When the driving device outputs the first driving force, the input member is engaged with the output member, and the first driving force can be transmitted to the force-bearing mechanism through the clutch mechanism to rotate the slats. When the driving device stops, the input member is disengaged from the output member, and the slats and the force-bearing mechanism are rotatable relative to the driving device.

Abstract: A window covering system comprises a headrail, a bottom rail, a covering material, a control unit, and a first rotating unit, wherein the first rotating unit is configured to be driven to rotate in a first direction when the bottom rail descends to expand the covering material; and a locking device coiled to the first rotating unit, wherein the locking device provides a restriction force to the first rotating unit to restrict the first rotating unit from rotating in the first direction, as well as to restrict the bottom rail from descending; and an actuating device configured to operate with the control unit simultaneously; when the control unit drives the actuating device to push the locking device in order to reduce the restriction force provided by the locking device to the first rotating unit, the bottom rail descends to drive the first rotating unit to rotate in the first direction.

Abstract: A cutting module adapted to trim a covering material of a window covering is disclosed, including a main body, a blade, and an elastic holding member. The main body has a first side, a second side, and a through hole communicating the first and the second sides, wherein the through hole can be passed through by the covering material. The blade is provided corresponding to the second side, and can be moved back and forth. The blade has a cutting edge, which passes over the through hole as the blade slides, whereby to cut off a part of the covering material beyond the second side. The elastic holding member is provided corresponding to the through hole to maintain the covering material at a predetermined position for cutting.

Abstract: A damping adjustment device for adjusting a damping force to a window covering system while the window covering system is expanding, wherein the damping adjustment device comprises a damping module comprising first and second damping units. The damping force is outputted by the damping module to the window covering system when the first and second damping units generate an interaction force in between by a relative motion therebetween. An adjusting module is connected to the damping module for operating with the damping module simultaneously, wherein the damping force from the damping module is adjusted by the adjusting module altering a relative position of the first damping unit and the second damping unit when the relative motion occurs therebetween. A window covering system comprises the damping adjustment device, wherein expansion speed of a covering material of the window covering system can be effectively controlled and adjusted by the damping adjustment device.

Abstract: In a window covering system and a window covering control apparatus thereof, the window covering control apparatus comprises a driving module, a damping output module, and a damping control module. The damping output module and the driving module are configured to operate simultaneously. The driving module may drive the damping output module to provide damping to the driving module. The damping control module comprises a control detecting unit and a fitting unit. The control detecting unit comprises a detecting portion and a stopper portion, which are detachably engaged. During an expansion of a covering material, the driving module drives the damping output module to provide damping to the driving module; when the stopper portion is driven apart by the detecting portion from the fitting unit, the driving module operates independently of the damping output module to stop the damping output module from providing damping.

Abstract: A connecting structure, which is located between a first object and a second object, includes a first engaging member and a second engaging member located between the first engaging member and the first object. The first engaging member is located between the second engaging member and the second object. The second engaging member has a thickness. When a distance between the first engaging member and the first object is less than or equal to said thickness, the first engaging member and the second engaging member are not movable relative to each other. When said distance is greater than said thickness, the first engaging member and the second engaging member can be moved in a direction relative to each other, moving the first object and the second object relative to each other as well. A covering device for an opening of a building is also disclosed, which includes said connecting structure.

Abstract: A cutting machine for window coverings is disclosed, which includes a worktable, a first cutting device, and a caliper. An abutting member and at least one series of extending graduation marks are provided on a table surface of the worktable. The caliper includes at least one internal gauge point and at least one external gauge point. By making the internal gauge point or the external gauge point of the caliper point at a scale value of the series of extending graduation marks which matches a height of a window opening, and by cutting the slats, the resultant slats are adapted to be installed to the window opening. In addition, a distance between a surface of the first cutting device which bears the slats and the table surface of the worktable is short, which makes the stacked slats can be cut in a substantially horizontal way.

Abstract: A cutting machine for window coverings is disclosed, which includes a worktable, a first cutting device, and a caliper. An abutting member and at least one series of extending graduation marks are provided on a table surface of the worktable. The caliper includes at least one internal gauge point and at least one external gauge point. By making the internal gauge point or the external gauge point of the caliper point at a scale value of the series of extending graduation marks which matches a height of a window opening, and by cutting the slats, the resultant slats are adapted to be installed to the window opening. In addition, a distance between a surface of the first cutting device which bears the slats and the table surface of the worktable is short, which makes the stacked slats can be cut in a substantially horizontal way.

Abstract: A light shielding structure for a vertical blind is disclosed, wherein the vertical blind includes a headrail and a plurality of slats, which are hanged under the headrail in a vertical manner, and can be controlled to be turned between a shielding position and a non-shielding position. The light shielding structure includes at least one light shielding member, which is engaged to a bottom of the headrail, and can either be flipped up or naturally droop along with the turning of the slats. When the at least one light shielding member droops, gaps formed between the bottom of the headrail and a top of the slats are covered, which prevents light from leaking in therethrough.

Abstract: A window covering control assembly is used in a window covering system. The window covering control assembly comprises a driving module and a speed control module, and is provided in the shell, engaged to the weight element for simultaneous operation therewith. The driving module comprises a cord collecting assembly mounted in the shell. The cord collecting assembly is configured to operate in a first direction while a first driving force acting upon the cord collecting assembly such that the weight element descends away from the shell. The first driving force comprises at least a weight of the weight element. The speed control module is positioned corresponding to the driving module. A resistance force is selectively generated between the speed control module and the driving module, and this force reduces an operation speed of the cord collecting assembly in the first direction.

Abstract: A lifting device of a cordless covering includes a cord reel, a car, a driving module, a connecting cord, and a lifting cord. The cord reel has a cone section, and is pivoted on a headrail for free rotation. The car is received in the headrail for reciprocation. The driving module is received in the headrail to drive the cord reel to rotate in a predetermined direction. The connecting cord has opposite ends connected to the car and the cord reel, wherein the connecting cord is reeled in and out of the cone section of the cord reel when the cord reel rotates in different directions. The lifting cord runs around the car, and then extends out of the headrail to be fastened to a bottom rail. The cord reel and the driving module are helpful to precisely stop and bottom rail at any desired position.

Abstract: A reel for collecting a cord of a window covering is disclosed, which includes a main body and a groove provided on the main body. While in use, the cord is wrapped around the main body after going along the groove, forming a plurality of cord loops, which include at least one first cord loop and a plurality of second cord loops. The first cord loop is at least partially received in the groove, with a part thereof protrudes out of the groove. The second loops are wrapped around the main body, and is sequentially arranged in a direction away from the groove. One of the second cord loops closest to the first cord loop abuts against the part of the first cord loop which protrudes out of the groove. A driving module for a window covering is also disclosed, which includes the aforementioned reel.

Abstract: A lifting device of a cordless covering includes a cord reel, a car, a driving module, a connecting cord, and a lifting cord. The cord reel has a cone section, and is pivoted on a headrail for free rotation. The car is received in the headrail for reciprocation. The driving module is received in the headrail to drive the cord reel to rotate in a predetermined direction. The connecting cord has opposite ends connected to the car and the cord reel, wherein the connecting cord is reeled in and out of the cone section of the cord reel when the cord reel rotates in different directions. The lifting cord runs around the car, and then extends out of the headrail to be fastened to a bottom rail. The cord reel and the driving module are helpful to precisely stop and bottom rail at any desired position.

Abstract: A control structure for a window covering includes a base, a revolving wheel having an axial post, a restriction means including a bushing fitting around the axial post, a transmission member provided on a side of the bushing, and at least one pawl connected to the axial post. The revolving wheel is connected to the base. The restriction means has at least one cutting groove. The transmission member has at least one abutting portion on an inner wall thereof. The pawl is pivotable within a width of the cutting groove. When the revolving wheel is rotated forward, an end of the pawl passes through the cutting groove to mesh with the abutting portion. When the revolving wheel is rotated backward, the pawl disengages from the abutting portion, and the transmission member is rotatable relative to the revolving wheel. Whereby, it could prevent generating noise while operating the window covering.

Abstract: An automatic closing structure is disclosed, which is installed between a sash and a corresponding object, wherein the sash is pivotable relative to the corresponding object; the sash includes a frame and a plurality of turnable slats which are arranged in parallel in the frame; the automatic closing structure has a cord which is adapted to automatically close the slats, wherein the cord can be easily assembled into the automatic closing structure, and a tightness thereof can be adjusted.

Abstract: A window blind includes a headrail, a bottom rail, and a plurality of slats. The slats are horizontally suspended between the headrail and the bottom rail through ladder tapes. Each ladder tape has two warps, wherein an end of the warps is connected to a ladder drum, and another end thereof passes through the bottom rail to be connected thereto. When the ladder drum is rotated, the ladder tapes could be pulled smoothly, and the slats supported by the ladder tapes could be tightly closed. Whereby, the window blind could provide a good shielding effect.

Abstract: A TDBU (top down, bottom up) window covering includes a first crossbeam and a second crossbeam below a fixture, wherein a slat assembly is connected between the first crossbeam and the second crossbeam. A first control structure is further provided in the first crossbeam, and a second control structure is provided in the second crossbeam. The first control structure moves the first crossbeam toward or away from the fixture, and the second control structure moves the second crossbeam toward or away from the first crossbeam. Whereby, the assembling and the maintenance of the window covering are more convenient and easier.

Abstract: A light blocking system is disclosed, which is adapted to be used in a vertical blind which includes a headrail, a control mechanism provided in the headrail, and a covering assembly including a plurality of slats. Each of the slats is connected to the control mechanism with an end thereof, and therefore is hung below the headrail. A gap is left between the covering assembly and the headrail. The control mechanism is adapted to turn the slats in situ relative to the headrail, or to move the slats back and forth in a longitudinal direction of the headrail. The light blocking system includes a cover plate provided corresponding to the gap, wherein the cover plate covers the gap when the covering assembly is in a closed state.

Abstract: A cutting machine for cutting components of window coverings has a machine base, a first cutting unit, a first restricting unit, a second cutting unit, and a second restricting unit. The first cutting unit and the second cutting unit are provided on the machine base. The first cutting unit is designed to cut a horizontal top rail, a horizontal bottom rail and horizontal slats of a venetian blind, and a vertical top rail of a vertical blind; the second cutting unit is designed to cut vertical slats of the vertical blind. The first and the second restricting units are designed to hold the components to be cut at specified positions by the first and the second cutting units.