Abstract: Disclosed are a connecting assembly, a door guardrail and a fence using the connecting assembly. The connecting assembly includes a first connector and a second connector, a transverse locking device and a longitudinal locking device are arranged between the first connector and the second connector, and the longitudinal locking device is capable of limiting relative movement of the first connector and the second connector in a transverse direction.

Abstract: A roller and an insert plate-assisted roller securing device are provided. The insert plate-assisted roller securing device includes a wheel-shaped cover, an outer cover, and a bracket. The outer cover has a supported portion with different widths in different directions, and the supported portion can be engaged in the bracket without separating from the bracket. As the outer cover can be coupled to the bracket along with the roller by a single person, installation of the roller is made easier and less time-consuming than before.

Abstract: A window control device for a vehicle, and a method therefor, include a driving motor configured to drive a window glass, a first sensor configured to generate one pulse signal corresponding to a rotation of the driving motor, a second sensor configured to sense a voltage signal provided to the driving motor, and a controller configured to perform a safety function based on the one pulse signal generated by the first sensor and the voltage signal sensed by the second sensor. Although a fault occurs in one of two hall sensors, the window control device may normally perform the safety function.

Abstract: Top furling automated retractable greenhouse cover is a retractable cover for a greenhouse that is mounted on top of the greenhouse. Top furling automated retractable greenhouse cover comprises: a spine clamp, a left furling cover assembly, a right furling cover assembly, a hinge pin assembly, and an electrical control box. Left and right furling assemblies each comprise a curtain or cover, a furling rod, a furling motor, and a support arm. Electrical control box sends electronic signals to cause left and right covers or curtains to furl above the greenhouse when retracted and to unfurl down to the ground when extended to cover the greenhouse. The top-mounted design allows efficient use of gravity to apply tension to the furled rolls.

Abstract: Stepper motor winding current regulation methods and apparatus adapt a maximum blanking period to generate an adapted blanking period that is proportional to a currently-selected current regulation set-point. Sensed winding current feedback is ignored at a current regulation controller during the adapted blanking period or during a minimum blanking period, whichever longer, to avoid attempting to track noise imposed upon a sensed winding current feedback signal at an initiation of rapid current changes di/dt. Doing so may decrease ripple in the motor winding current waveform and reduce zero-crossing distortion by decreasing overshoot of the current regulation set-point by the sensed winding current.

Abstract: Embodiments of the invention relate to a stop configured to be positioned in a track channel of a guide rail for guiding a shade. Further embodiments relate to a guide rail and stop combination, where the guide rail and stop combination are configured to be used for guiding a shade. Still further embodiments relate to a shade system incorporating one or more guide rails for guiding a shade and at least one stop positioned with respect to the guide rail to control the travel of bottom bar interconnected with the shade.

Abstract: A movable assembly having a counterbalance gear tensioner includes a covering, a rotatable storage roll with a hollow interior that carries the covering, and a counterbalance assembly that is received in the hollow interior to assist in movement of the covering. A gear tensioner is also received in the hollow interior, rotates with the rotatable storage roll, and is coupled to the counterbalance assembly to adjust a tension force of the counterbalance assembly.

Abstract: A cover for the clutch of a roller blind. The clutch includes a sprocket rotationally driven through the application of tension to a chain or cord received at least partially about the sprocket. The clutch also includes an abutment member against which a stopper on the chain or cord bears to limit rotation of the sprocket in a pre-determined direction. The cover comprises a plate member fixed to the clutch and prevented from rotation with the sprocket. The cover has a notch sized to receive at least a portion of the stopper when the stopper contacts the abutment member.

Abstract: Methods and apparatus to provide upper and lower travel limits for architectural opening coverings are disclosed. A disclosed architectural opening covering assembly includes a rotatable roller tube and a covering mounted to the roller tube. The covering is movable between a lowered position and a raised position. The covering is wound on the roller tube in the raised position. The covering assembly further includes a first limit nut located internal to the roller tube to define the lowered position, and a second limit nut located internal to the roller tube to define the raised position.

Abstract: Here is disclosed a stopper for stopping the upward movement of a bottom bar attached to a fabric blind wound on a roller tube mounted within an elongated chamber of an elongated housing having a vertical wall. The stopper includes an elongated member having a head portion, a toe portion and a neck portion between the head and toe portion. The head portion is mountable within a mounting cavity positioned on the elongated housing adjacent the vertical wall. The mounting cavity, head portion and neck portion are dimensioned and configured to position the toe portion between the vertical wall and the roller tube when the stopper is mounted to the housing. The toe portion has a multi-position spacer element for selectively positioning the toe portion between proximate and distal positions relative to the vertical wall.

Abstract: A safety assembly for a roller blind has a fixing device, a moving device, a flexible element, a rotating device, a hooking device and a bead cord. The fixing device has a base panel, a stopping arm and a reset mount. The moving device is movably connected to the fixing device between the stopping arm and the reset mount. The flexible element is mounted between the reset mount and the moving device to push the moving device to move relative to the fixing device. The rotating device is rotatably mounted on the moving device and has a stopping disc and a rotating disk. The hooking device is mounted securely below the fixing device, the moving device and the rotating device. The bead cord is mounted between the rotating device and the hooking device to allow the rotating device rotating relative to the moving device by pulling the bead cord.

Abstract: Operating system (1) for rotatably controlling retraction and deployment of an architectural covering. The operating system includes a drive pulley wheel (3) having a circumferential rim (5), a length of looped drive cord (9) operatively engaged with the pulley wheel (3) about its circumferential rim (5) and having depending portions on opposite sides of the pulley wheel (3), a cover (7) co-extensive with a portion of the circumference of the pulley wheel (3) and at least one stopper (19) attached to a portion of the length of the drive cord (9) and adapted to engage the cover (7) to stop rotation upon a predetermined amount of rotation of the pulley wheel (3). The pulley wheel is provided with a cavity (17) on its toothed circumference for receiving the at least one stopper (19) to prevent it from engaging the cover (7).

Abstract: A power assist module for use in roller tube driven products, such as roller shades. The module may be pre-wound prior to installation in a roller tube and retains its pre-wound condition, even after use, when removed from the roller tube.

Abstract: A sun shield assembly includes: a spool housing provided with first and second supporting seats; a spool-supporting unit disposed in the spool housing and having first and second studs opposite to each other in an axial direction and coupled to the first and second supporting seats, respectively; a spool mounted rotatably to the spool-supporting unit; and a sun shield member mounted movably on the spool. The first supporting seat includes a casing, and a coupler disposed in the casing and formed with an insert hole. The first and second studs extend into the insert hole in the coupler and the first supporting seat, respectively. The first supporting seat further includes an urging member mounted in the casing to urge resiliently the coupler in a first radial direction relative to the axial direction.

Abstract: A limit mechanism for door machine for controlling the door curtain in such a manner that it stops accurately at an upper stop level and a lower stop level, the door machine including an output pulley driving a reel of the door curtain. The limit mechanism comprises: a screw rod both ends of which are rotatably supported on a frame, the end portion of one end of the screw rod being provided with a driven pulley which interlinks with the reel of the door curtain; a pair of nut blocks each having a threaded hole centrally arranged for joining with the screw rod so as to slide thereon; a pair of lock devices for locking relative positions between the pair of nut blocks; and a pair of buffer devices arranged respectively at both ends of the screw rod for limiting the sliding stroke of the nut blocks.

Abstract: A safety assembly for a roller blind has a fixing device, a moving device, a flexible element, a rotating device, a hooking device and a bead cord. The fixing device has a base panel, a stopping arm and a reset mount. The moving device is movably connected to the fixing device between the stopping arm and the reset mount. The flexible element is mounted between the reset mount and the moving device to push the moving device to move relative to the fixing device. The rotating device is rotatably mounted on the moving device and has a stopping disc and a rotating disk. The hooking device is mounted securely below the fixing device, the moving device and the rotating device. The bead cord is mounted between the rotating device and the hooking device to allow the rotating device rotating relative to the moving device by pulling the bead cord.

Abstract: A fabric gate has a ratchet assembly, a delaying assembly and a driving device. The ratchet assembly has a ratchet, a positioning ring and a driven pad. The ratchet has a wheel provide with multiple upper ratchet teeth and multiple lower ratchet teeth. The upper ratchet teeth extend toward a direction opposite to that of the lower ratchet teeth extending. The positioning ring is expandable and has engaging teeth engaging respectively with the ratchet teeth on the ratchet. The driven pad is attached to the top of the positioning ring to expand the positioning ring when the driven pad is rotated by the driving device. The delaying assembly is mounted in the top cap and connected to the ratchet assembly to reduce to the rotating speed of the driven pad.

Abstract: A limit mechanism for door machine for controlling the door curtain in such a manner that it stops accurately at an upper stop level and a lower stop level, the door machine including an output pulley driving a reel of the door curtain. The limit mechanism comprises: a screw rod both ends of which are rotatably supported on a frame, the end portion of one end of the screw rod being provided with a driven pulley which interlinks with the reel of the door curtain; a pair of nut blocks each having a threaded hole centrally arranged for joining with the screw rod so as to slide thereon; a pair of lock devices for locking relative positions between the pair of nut blocks; and a pair of buffer devices arranged respectively at both ends of the screw rod for limiting the sliding stroke of the nut blocks.

Abstract: A retractable barrier system includes an example gear assembly that can be manipulated for rapidly deploying a flexible barrier, exerting high torque for the initial tightening of the barrier, maintaining high static tension in barrier when in use, and/or rapidly retracting barrier for storage. In some examples, the gear assembly is a worm drive with a worm that can be selectively disengaged from a worm gear. Other optional features of the barrier system include selective right-hand/left-hand configurations, an electric switch that can be added to indicate whether the barrier system is in use, an intermediate coupling that joins the distal ends of two barriers for creating an extra long barrier system, and removable vehicle-mounted posts for certain loading dock applications.

Abstract: A sunshade assembly includes a housing having a top opening, a winding shaft mounted rotatably in the housing, a sunshade cloth wound around the winding shaft, a pull rod disposed outside the top opening, a frame body disposed below the housing, a gear rack mounted to the frame body and having a top end connected to the pull rod, and a clutch unit meshing with the gear rack and including a pusher that is operable to place the clutch unit in a non-clutching position, where the gear rack is freely movable to permit the sunshade cloth to be wound by the winding shaft, or a clutching position, where the clutch unit applies a retarding force to retard a movement of the gear rack, which prevents the winding shaft from winding the sunshade cloth but permits the pull rod to pull and stop the sunshade cloth at a desired position.

Abstract: Methods and apparatus to provide upper and lower travel limits for architectural opening coverings are disclosed. A disclosed architectural opening covering assembly includes a rotatable roller tube and a covering mounted to the roller tube. The covering is movable between a lowered position and a raised position. The covering is wound on the roller tube in the raised position. The covering assembly further includes a first limit nut located internal to the roller tube to define the lowered position, and a second limit nut located internal to the roller tube to define the raised position.

Abstract: A retractable screen for extending across an architectural opening is disclosed. The retractable screen includes a fixed side having a fixed screen post; a displaceable handle post having an upper region and a lower region, the displaceable handle post is displaceable away from the fixed side towards a closed position, and is displaceable towards the fixed side back into an open position; at least one of an upper guide track and a lower guide track which is operatively engaged with the upper or lower region of the handle post and guides movement of the handle post between the open and closed positions.

Abstract: A safety device for a loading space of a motor vehicle comprises a housing in which a winding shaft is rotatably mounted and which has an outlet slot for a separating roller blind that can be wound up onto the winding shaft or can be unwound from the winding shaft and which is connected at an edge running transversely with respect to the winding direction to the winding shaft and at another edge thereof running transversely with respect to the winding direction to an extension bow that can be fixed in a roof lining region of the motor vehicle in question, and also an extension limiting device for the separating roller blind. The extension limiting device comprises a gap width reducing device for the outlet slot, which gap width reducing device can be switched between a release position, in which the separating roller blind can be completely unwound from the winding shaft, and a blocking position, in which the separating roller blind can be only partially unwound from the winding shaft.

Abstract: The invention consists of an automatic lock and tension of a tarpaulin system in a safe manner and does not require the intervention of the operator when the system is being engaged, disengaged, opened or closed. This invented automatic mechanism tensions the tarpaulin system exerting always a parallel force with the direction of opening and closing of the tarpaulin system eliminating the internal stresses exerted to the tarpaulin system components. Any misalignment produced due to tolerances is removed from the guide wheels or an edge established under the track of the sliding tarpaulin system.

Abstract: A retractable covering for architectural openings having collapsible vanes includes a head rail and support structure in the form of a sheet of material, monofilaments, tapes, ribbons, cords, or the like, supporting an upper edge of a plurality of vertically spaced, horizontally extending vanes with the lower edges of the vanes being connected to operating elements adapted to raise the lower edges of each vane toward the upper edges to define openings or gaps between the vanes through which vision and light can pass in an open condition of the covering. The support structure, vanes and operating elements are adapted to be wrapped around a roller in the head rail in a retracted position of the covering and unwrapped in an extended position. An inhibitor system is incorporated into the covering to permit automatic opening of the vanes when the support structure, vanes and operating elements reach an extended position.

Abstract: A draft arrester for an overhead door. An exemplary embodiment may include a flexible draft curtain extending between a ceiling structure and a wound-up portion of the overhead door. The draft arrester may include a follower assembly, which may include one or more rollers arranged to roll against the overhead door. An exemplary embodiment may include a repositionable arm arranged to press the rollers against the wound-up portion of the door.

Abstract: The invention relates to a shading roller blind for a motor vehicle window, with a flexible sheetlike structure (40) which can be wound up on and unwound from a winding shaft (43) and can be moved with the aid of at least one linear guide means (5, 105) from a stowed position into an at least partially unwound protective position, and with a releasable blocking device (7) by means of which the linear guide means (5, 105) can be arrested in at least one position, in particular the protective position and/or stowed position, the blocking device (7) comprising a push-push lock.

Abstract: A top down/bottom up covering for an architectural opening is disclosed in a roll-up configuration so the shade can be rolled about a roller in a head rail while having the ability to raise and lower top and bottom rails between which the shade material extends independently of each other. The roller is utilized to raise and lower the bottom rail by wrapping about or unwrapping the shade material from the roller and a control system for raising and lowering the top rail is confined within the roller. The invention is disclosed in embodiments that include a single operating element or a pair of operating elements but in each instance the top and bottom rails are independently movable so the shade material can be extended to any degree between the top and bottom rails and positioned at desired locations within the architectural opening in which the covering is mounted.

Abstract: A retractable barrier includes a rollup or otherwise retractable panel that can extend between two spaced apart support members. When not in use, the panel can retract onto one of the support members to permit passage. The barrier provides substantial impact resistance by having the reactive force of the impact transfer directly between the barrier's retractable panel and its support members without having to rely on the strength of the panel's take-up roller or the strength of the roller's anti-rotation mechanism. This can be accomplished by having a slot-engaging stop member mounted directly to the panel itself. The stop member is preferably a pipe, rod, bar or some other vertically elongate member that can broadly distribute an impact reactive force over the height of the panel. In some embodiments, the barrier can be set for various doorway widths by simply repositioning the stop member's location on the retractable panel.

Abstract: A retractable barrier includes a rollup or otherwise retractable panel that can extend between two spaced apart support members. When not in use, the panel can retract onto one of the support members to permit passage. The barrier provides substantial impact resistance by having the reactive force of the impact transfer directly between the barrier's retractable panel and its support members without having to rely on the strength of the panel's take-up roller or the strength of the roller's anti-rotation mechanism. This can be accomplished by having a slot-engaging stop member mounted directly to the panel itself. The stop member is preferably a pipe, rod, bar or some other vertically elongate member that can broadly distribute an impact reactive force over the height of the panel. In some embodiments, the barrier can be set for various doorway widths by simply repositioning the stop member's location on the retractable panel.

Abstract: A retractable barrier includes a rollup or otherwise retractable panel that can extend between two spaced apart support members. When not in use, the panel can retract onto one of the support members to permit passage. The barrier provides substantial impact resistance by having the reactive force of the impact transfer directly between the barrier's retractable panel and its support members without having to rely on the strength of the panel's take-up roller or the strength of the roller's anti-rotation mechanism. This can be accomplished by having a slot-engaging stop member mounted directly to the panel itself. The stop member is preferably a pipe, rod, bar or some other vertically elongate member that can broadly distribute an impact reactive force over the height of the panel. In some embodiments, the barrier can be set for various doorway widths by simply repositioning the stop member's location on the retractable panel.

Abstract: A friction device (10), applied to roll-up curtains and the like, includes a tubular roller (1), on which the curtain (2) rolls up, and which is rotatably carried on a horizontal axis. The friction device (10) includes a threaded shaft (9), situated axially inside the roller (1) and connected to the roller (1) by interposition of an angular speed reducer group (4). A body (11), mounted sliding axially inside the roller (1), is screw-coupled with the threaded shaft (9), so as to translate axially due to the shaft (9) rotation during unrolling or rolling up of the curtain (2) on the roller (1). One or more elastic members (12), subjected to pressure or counter-thrust, are compressed, on opposite ends, between abutment means (13) and a surface of the body (11), to determine a friction effect, which varies as a function of the rotation direction of the roller (1).

Abstract: A power window control apparatus for controlling vehicle power windows (12-18) includes window control switches (52-58) for controlling power window control motors (20-26). When two window control switches (52-58) are simultaneously and momentarily actuated downward, a controller (40) controls the motors (20-26) to lower the windows (12-18) to a predetermined position from an initially closed position. In the event that one or more windows are initially open, the controller (40) lowers the windows for the time interval that the two window control switches are actuated downward. When the two window control switches (52-58) are moved in the upward direction, the controller (40) simultaneously controls all the motors (20-26) to raise all open windows (12-18) to a fully closed position.

Abstract: A method is disclosed of installing a barrier device at a passageway. The method includes attaching a barrier housing containing a retractable barrier to a structural element on one side of the passageway, extending the barrier a desired distance from the barrier housing, with the barrier so extended, setting an extension limit of the barrier to prevent subsequent extension of the barrier beyond the desired distance from the barrier housing and, with the extension limit set, retracting the barrier into the housing. The set extension limit can permit subsequent retraction and re-extension of the barrier up to the set extension limit.

Abstract: Device for controlling a drive motor of a roller blind having stackable slats, the device identifying the type of end travel for the roller blind and operating by analyzing the variation in the drive torque. The automatic control adapts the control of the stopping of the motor to the type of end travel identified. The automatic control preferably includes a logical processing unit (3) containing a program for analyzing the variation in the torque.

Abstract: A power window controlling device, which detects an obstruction-caught state without misunderstanding even if the electric potential at the power source drops abruptly, which comprises switches, an electric motor, a drive system, a drive controller, a rotation sensor, a motor speed calculating device, a source voltage detecting circuit, a data signal generating device and a motor torque calculator. The motor torque calculator calculates correcting data of motor torque on basis of a correcting data signal given from the data signal generating device and a rotational speed signal of the motor given from the motor speed calculator, and compares the correcting data of the motor torque with the predetermined criterion value in a case where the electric potential of the power source changes.