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With brake or stop

Subclass of:

160 - Flexible or portable closure, partition, or panel

160238000 - ROLL TYPE

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
160291000 With brake or stop 60
20080196845VISCOUS BRAKING DEVICE EQUIPPED WITH MONODIRECTIONAL MECHANISM, PARTICULARLY FOR MOSQUITO CURTAINS - A monodirectional braking mechanism is disclosed, for use with a device for extending and retracting a sheet of material on a roller, the braking mechanism comprising: one or more than one housing containing viscous fluid, one or more that one rotor within the housing; a brake connected to the rotor and placed within the housing, the brake comprising a projecting pin; a braking spring wound around the pin of the brake and placed outside the housing; where the braking mechanism reduces the force or rate, or both the force and rate, of rotation of the roller as the roller is rotated in a second rotation direction but has substantially no effect on the force or rate of rotation of the roller when the roller is rotated in a first rotation direction; and where the first rotation direction is the reverse of the second rotation direction.08-21-2008
20090078380Damping apparatus for retraction and extension of window shades - A damping apparatus for retraction and extension of window shades includes a damper and a damper casing that are pivotally coupled with a clutch and engaged with a rolling shade or a window shade assembly. A sealed housing chamber is formed between the damper and damper casing to contain damping oil. The damper casing has a shaft at one end pivotally coupled with the clutch and a jutting stem at another end to couple with a transmission axle of a main spring of the rolling shade. The damper has an axle rotating relative with a shell to generate volume alteration of a curved surface at one end such that the apparatus can control deceleration while the rolling shade is retracted or buffer the extension speed while the window shade assembly is extended.03-26-2009
20100288451OPERATING UNIT FOR ARCHITECTURAL COVERINGS - The invention relates to an operating unit (11-18-2010
20110155332RETARDING STRUCTURE FOR ROLLING CURTAIN AND MANUFACTURING METHOD THEREOF - In a retarding structure for rolling a curtain and a manufacturing method thereof, the retarding structure includes a housing, a shaft and an elastic element. The shaft is movably coupled into the housing, an end of the shaft is extended out from the housing; and an elastic element is sheathed onto the shaft, and both ends of the elastic element are abutted against internal walls of the housing respectively. The housing can be combined with any curtain rod having an automatic rolling mechanism, such that when a curtain fabric rolled up to the curtain rod by the automatic rolling mechanism, the shaft together with the elastic element are used to gradually increase the resistance produced during the rolling, so as to prevent the curtain fabric from rolling up instantly, and achieve the effects of preventing the curtain from being damaged easily and providing a universal application.06-30-2011
20120024484Door machine mechanism of fireproof door - A door machine mechanism of the fireproof door comprises a force exerted end which is activated to roll a rotary axle and a loading end for receiving the weight of the door curtain. The rotary axle comprises an internal axle and two external axles. The force exerted end and the loading end are applied on the internal axle and the external axle respectively. The internal axle and the external axle are normally coupled via a clutch mechanism. A torsion spring brake mechanism is used to normally brake the rotary axle against the load of the loading end by changing the inner diameter of the torsion spring, or when the torsion spring brake mechanism is subjected to an external force from the force exerted end, the rotary axle is released. As such, the clutch mechanism is controlled to interrupt the coupling of the internal axle and the external axle in the event of the fire alarm such that the door curtain falls and shuts the fireproof door.02-02-2012
20120160429COUPLING DEVICE FOR A SUNSHADE ASSEMBLY - A coupling device for a sunshade assembly includes a slide block, an insert block and a plug component. The slide block has spaced-apart first and second block bodies connected to a guide member of the sunshade assembly. The first block body has an engaging portion formed on a hole-defining surface that defines a first through hole. The insert block is connected to a cross bar of the sunshade assembly, extends between the first and second block bodies, and is formed with a plug hole registered with the first through hole. The plug component is inserted through the plug hole from the first through hole, and is formed with a first engaging part engaging the engaging portion of the first block body, and a second engaging part spaced apart from the first engaging part and moving over the engaging portion of the first block body during the insertion of the plug member.06-28-2012
20130112357Overhead Roll-Up Door Having At Least Two Motors - An overhead roll-up door assembly for a vertically moving door to permit and prohibit access to an opening, the door assembly having a flexible door panel, a shaft capable of rotating to vertically move the flexible door panel, and at least two motors configured to rotate the shaft.05-09-2013
20130220560ROLL TYPE BLIND OR SHADE SYSTEM CONFIGURED TO BE EASILY CONVERTED BETWEEN MOTORIZED AND MANUAL OPERATION - There is provided a motorized roller shade that includes a roller shade tube including an outer surface, an inner surface defining an inner cavity, and two end portions. The motorized shade further includes a shade attached to the outer surface of the roller shade tube, a counterbalancing unit configured to provide a counterbalancing force to the shade, and the roller shade tube further comprising substitution configurations to allow the roller shade tube to receive and operate with either a motor assembly or a manual operation assembly.08-29-2013
20140014280WINDING SHAFT DRIVE FOR OPERATING A RETRACTABLE ARCHITECTURAL COVERING AND SHAFT BRAKE MODULE FOR USE THEREIN - A winding shaft drive (01-16-2014
20140069595AUTOMATIC ROLLER SHADE - An automatic roller shade includes a shade body rotatably mounted to between a first and a second mounting bracket; a stop mechanism mounted in an end of a roller of the shade body; and a driving mechanism mounted in another opposite end of the roller. The stop mechanism includes a winding element connected to the roller and a spiral spring element having an end connected to the winding element. The spiral spring element enables a balance between a force for lifting or winding a shade fabric of the shade and the gravitational force lowering or unwinding the shade fabric. The driving mechanism at the other end of the roller can adopt a micro motor as a power source and the micro motor can be invisibly located inside the roller, enabling the automatic roller shade to have reduced power consumption and manufacturing cost while having a compact and esthetic appearance.03-13-2014
20140096920ROLLER SHADE ASSEMBLY ADJUSTMENT MECHANISM - In various implementations, a roller shade assembly may include an elongated body and a mechanism. The mechanism may include gears and a spring. The mechanism may allow the roller shade to be locked and/or unlocked using a driver. Internal component(s) of the roller shade may be adjusted using the driver.04-10-2014
20140238624WINDOW BLIND - A window blind includes a stationary seat, a blind mechanism, a coupling mechanism and a control pole. The blind mechanism includes a linking rod mounted to the stationary seat and a blind unit wound on the linking rod. The coupling mechanism includes a transmission unit connected to the linking rod and movable between an operable state and a non-operable state, a stop unit for restraining rotation of the linking rod when the transmission unit is at the non-operable state, and a resilient member for biasing the transmission unit toward the non-operable state. The control pole is connected to the transmission unit and is operable for converting the transmission unit to the operable state against a resilient force of the resilient member.08-28-2014
20150083350MOTORIZED TRANSITIONAL SHADE SYSTEM - A motorized transitional shade system may move a covering material between open, closed, view, and privacy positions. The covering material may define respective pluralities of opaque and transparent sections that are arranged in an alternating pattern. A bottom bar that is movably supported by the covering material may define first and second portions of the covering material. The opaque and transparent sections in the first and second portions of the covering material may permit visibility through the covering material in a view position, and may impede visibility through the covering material in a privacy position. If movement of the covering material is halted at an intermediate position that is between the open and closed positions, the motorized transitional shade system may cause the motor to rotate the roller tube to move the covering material to a next lowest privacy position or to a next highest view position.03-26-2015
20150136337Roller Shade System And Method - An apparatus for raising and lowering a window shade having: a clutch assembly with a clutch core having a shaft; springs having pairs of load bearing members, the springs being circumferentially positioned along a length of the shaft, the pairs of load bearing members being circumferentially spaced around the shaft such that there are no two orthogonal planes along a longitudinal axis of the shaft about which a load applied to a load bearing member of each pair is symmetrically distributed; a pulley defining openings, each of the openings being configured to receive at least one pair of load bearing members; and a housing comprising a plurality of keys, each key being configured to fit between at least one pair of load bearing members received by the openings.05-21-2015
160292000 Plural 4
20080223532Roll Up Covering for Architectural Openings Having Top Down/Bottom Up Capability - 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.09-18-2008
20120152470DECELERATING DEVICE INTEGRATED WITH BLIND STRUCTURE - A decelerating device integrated with a blind structure includes a blind structure comprising a batten and a blind fabric disposed at the batten; a first decelerating unit disposed at an end of the batten; a winding unit coupled to an end of the first decelerating unit and disposed in the batten; and a second decelerating unit disposed at another end of the batten. The decelerating device prevents window blind damage and promotes user safety by precluding instantaneous upward winding of a blind fabric, as precluding instantaneous upward winding of the blind fabric follows increasing winding-induced resistance by first and second decelerating units while a batten is winding in the blind fabric by means of a winding mechanism.06-21-2012
20130292068COVERING FOR ARCHITECTURAL OPENINGS WITH BRAKES IN SERIES - A cord drive mechanism to convert linear motion to circular motion for use in coverings for architectural openings. Various controls are used to provide a braking force on the cord. Some of the embodiments incorporate a capstan.11-07-2013
20140374035SEGMENTED WIND LOCK CONFIGURATION FOR OVERHEAD ROLL-UP DOORS AND METHOD OF CONSTRUCTING THE SAME - An overhead roll-up door assembly for a vertically moving door to permit and prohibit access to an opening, the door assembly having a door panel with two faces and opposing marginal and lateral edges, and at least two wind locks attached proximate each marginal edge. The at least two wind locks extend away from one face of the door panel in a direction substantially perpendicular thereto, and are spaced apart vertically along each respective side edge of the door panel. The assembly further includes a drum for winding and unwinding the door panel to permit and prohibit access to the opening, and, a pair of opposing parallel side columns aligned and spaced apart such that each of the opposing side edges engage one of the side columns in a manner in which at least a portion of the side columns guide vertical movement of the door panel.12-25-2014
160293100 Limit of travel 16
20090236053Draft arrester - 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.09-24-2009
20090321024RETRACTABLE SHADE WITH COLLAPSIBLE VANES - 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.12-31-2009
20100078136Loc-N-Load Mechanism - 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.04-01-2010
20110100567Loading Space Separation with an Extension Limiting Device - 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.05-05-2011
20110114272RETRACTABLE SCREEN - 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. The retractable screen further includes a flexible sheet mesh extending between the fixed side and the displaceable handle post; and a brake arrangement for braking the movable handle post in a desired position intermediate the open and the closed positions, wherein the brake arrangement includes at least one brake assembly that is displaced into engagement with said at least one of the upper and lower guide tracks whereby to apply a braking action to the handle post.05-19-2011
20110139380METHODS AND APPARATUS TO PROVIDE UPPER AND LOWER TRAVEL LIMITS FOR COVERING OF AN ARCHITECTURAL OPENING - 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.06-16-2011
20110272105Sunshade Assembly Having a Clutch Unit - 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.11-10-2011
20120061035Limit mechanism of upper stop level and lower stop level for rolling door - 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.03-15-2012
20120255686SAFETY ASSEMBLY FOR A ROLLER BLIND - 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.10-11-2012
20120285633Sun shield assembly - 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.11-15-2012
20130153161POWER ASSIST MODULE FOR ROLLER SHADES - 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.06-20-2013
20140048218ROLLER BLIND CONTROL MECHANISM - 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.02-20-2014
160294000 For spring operated roller 4
20100314054Curtain - A curtain includes a curtain bracket (12-16-2010
20120305204SUNSHADE DEVICE - A sunshade device including: a sunshade; a stay to which one edge of the sunshade is fixed; a windup shaft to which the other edge of the sunshade is fixed; a first support member supporting one end of the windup shaft to rotate relative thereto and move relative thereto in a longitudinal direction of the windup shaft, and mounted at a a vehicle; a second support member supporting the other end of the windup shaft to rotate relative thereto and move relative thereto in the longitudinal direction of the windup shaft, and mounted at the vehicle; and a biasing member configured to pivotally bias the windup shaft against the second support member. The windup shaft includes a restricted portion at the other end thereof, and the second support member includes a rotation restricting portion and a rotation releasing portion formed to be adjacent to each other.12-06-2012
20130020038SPRING ASSEMBLY - A spring assembly for a roller blind, the assembly including a stationary end, a rotatable end and a spring arrangement located therebetween which is connected at a first end thereof to the stationary end and at a second end thereof to the rotatable end, wherein the rotatable end includes a rotatable body which is adapted to rotate relative to a fixed body about a rotational axis, and wherein the spring assembly further includes a locking pin coupled to the fixed body such that it has a locked configuration in which it engages a portion of the rotatable body and prevents rotation of the rotatable body relative to the fixed body and a free configuration in which rotation of the rotatable body relative to the fixed body is permitted.01-24-2013
160295000 Screw operated brake or stop 1
20140262076STOP FOR GUIDE RAILS ON A BLACKOUT CURTAIN OR SHADE - 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.09-18-2014
160296000 Speed limiting 1
20100018655Braking Apparatus for Blind - A braking apparatus for a blind, used to reduce the speed of a shielding member of the blind when it is lifted and lowered, in which weights are stably supported and operated without an increase in the size of the braking apparatus. The braking apparatus has a casing, a rotor rotatably supported with in the casing, and weights adapted to rotate together with the rotor in such a way that they can be in contact with the inner peripheral surface of the casing. A cylindrical shaft portion and weight support portions radially projecting from the peripheral surface of the shaft portion at equal intervals in the circumferential direction are formed on the rotor. One end of each weight is swingably supported by the weight support portion extending over the axial-direction entire length of the weight.01-28-2010
160297000 Ball or roller, form brake or stop 1
20100243182Roller Clutch Assembly - An improved roller blind clutch assembly is disclosed for controlling the raising and lowering of a roller blind which permits the smooth raising and lowering of roller blinds even if the blinds are heavy. The improved roller blind clutch assembly includes a roller tube mount coaxially and rotatably mounted to a barrel. A clutch member is in turn coaxially and rotatably mounted to the barrel between the roller tube mount and the barrel. The clutch member has a window formed between a first and a second edge of the clutch member. A torsion locking spring is coaxially mounted to the barrel between the barrel and the clutch member. The torsion locking spring has opposite first and second ends which project into the window. The roller tube mount has an extension portion configured to extend into the window and dimensioned to fit between the first and second ends of the torsion locking spring. The extension has opposite first and second shoulders covered by a steel shim configured to fit between the extension and the torsion locking spring. The extension portion is also dimensioned and configured to maintain a gap between the extension and the torsion locking spring; thereby permitting the torsion locking spring from catching on the barrel as the clutch mechanism is used to raise and lower the blind. The extension portion has a concave face with a circular diameter less than the diameter of the torsion locking spring.09-30-2010
160298000 Friction 7
20110094690PARTITIONING DEVICE FOR PASSENGER COMPARTMENT OF A VEHICLE - A partitioning device includes a fixing unit, a locking mechanism, and an article blocking mechanism. The fixing unit includes a first fixing seat, and a second fixing seat spaced apart from the first fixing seat. The locking mechanism includes a rod seat, and a securing unit that is mounted on the first fixing seat. The article blocking mechanism includes a rod that is mounted rotatably to the second fixing seat on one end and fixedly to the rod seat on its other end, a curtain member that is fixed at one end to the rod and that may be wound around and unwound from the rod, and an anchoring unit that is connected to a free end of the curtain member and that is adapted to be releasably anchored at a location in the passenger compartment of the vehicle such that the curtain member is at an extending position.04-28-2011
20110139381SYSTEM FOR OPERATING AND POSITIONING A ROLLER SHADE - A system for operating and positioning a roller shade may include a roller shade clutch and an idler which are mounted to brackets for attachment to a structure. Each bracket may include a mounting plate, an attachment member slidably mounted to the mounting plate, and a wall or ceiling engaging member mounted to the mounting plate. The roller shade clutch may include a housing having a guard defining a cavity, a chain outlet, and a chain guard spanning the chain outlet, a post extending axially from the housing, at least one torsion spring mounted on and frictionally engaging said post, a sprocket wheel being mounted for rotation over the post and seated within the cavity, a chain guard cover disposed over at least a portion of the chain guard, and a follower cap mounted over the post that is rotatable in conjunction with the sprocket wheel. The idler may include an inner drum, an outer drum rotatably and slidably disposed over the inner drum, and an end cap fixed over the forward end of the outer drum. The roller shade clutch or idler may be releasably coupled to attachment member of the bracket by a locking device.06-16-2011
20120175072Design-a-way retractable design wall and display aid - A Multiple-Roller Quilting Design Wall used by quilters or others requiring a vertical display for planning, designing, or presenting. An open faced box holding multiple (or one) roll-up sheets which can be unrolled singly, or simultaneously. Rotation of the roll-up sheet rod is controlled by the unique use of a friction clutch via a remote-control chain which allows the Design Wall box to be mounted high on a wall or over windows or doors.07-12-2012
20140196857BRAKING MECHANISM FOR A ROLLER SHADE CONTROLLER, CONTROL MECHANISM COMPRISING SAME AND CONTROL HANDLE - A braking mechanism for a roller shade control system. The braking mechanism includes a stationary member and a rotating member rotatable relative to the stationary member. The rotating member is rotatable in a winding direction or an unwinding direction. The braking mechanism also includes a connecting assembly operatively connecting the stationary member and the rotating member. The connecting assembly frictionally engages the rotating member when the rotating member is rotated in the unwinding direction and is frictionally disengaged from the rotating member when the rotating member is rotated in the winding direction. A control mechanism includes such a braking mechanism and an operating handle for operating the control mechanism.07-17-2014
20150020982HANDLE AND BRAKE ARRANGEMENT FOR A COVERING FOR ARCHITECTURAL OPENINGS - A handle is releasably secured to a rail wall by means of fasteners extending from inside the rail. An actuator shaft pushes against a contact plate to move a movable braking member to stop the rotation of a rod inside the rail.01-22-2015
160299000 For spring operated roller 2
20120241111MECHANISM FOR CONTROLLING THE ROTATION OF A ROLLER BLIND WINDING ROLLER HAVING A SPRING DRIVE - One embodiment of a mechanism for controlling the rotation of a roller blind winding roller having a spring drive and immovably fixed to a roller blind holder and its winding roller is constructed of an outer roller (09-27-2012
20120298318MECHANISM FOR BLOCKING THE ROTATION OF SPRING DRIVEN ROLLER BLINDS - A mechanism for blocking the rotation of a roller blind having a winding roller with a spring drive used to block the sunshade in its set position of unwinding, immovably fixed to the holder fir the roller blind holder its winding roller, characterized in that it is built from a sleeve (11-29-2012
160300000 Pawl or detent 4
20100200176ACTIONNEUR TUBULAIRE POUR L'ENTRAINEMENT D'UN ECRAN DOMOTIQUE - The invention relates to a tubular actuator (08-12-2010
160301000 For spring operated roller 3
20150300087SHADING DEVICE - The present invention discloses a shading device includes a screen, a shaft portion having a lock portion to be locked, a biasing mechanism, a locking member that is engaged at a lock position with the lock portion, and a housing in which the end portion of the shaft portion is inserted. The housing has a sliding guide portion in which the locking member is slid. The sliding guide portion is capable of guiding the locking member in a direction passing through the lock position and a lock release position, and has a lock position engagement portion for stopping the locking member from sliding at the lock position. The locking member includes a slide engagement portion that engages with the lock position engagement portion at the lock position and an operating portion that can be flexed to release the slide engagement portion from the lock position engagement portion.10-22-2015
160302000 Spring urged pawl or detent 1
20160010390COVERING FOR AN ARCHITECTURAL OPENING01-14-2016
160303000 Pawl or detent mounted off the roller 1
20130299101RETRACTABLE SAFETY GATE - A retractable safety gate has a mounting assembly, a control assembly, a delaying assembly, an operating assembly, a blocking cloth, a grip assembly and a receiving assembly. The control assembly has a controller, a ratchet unit and a spiral spring. The spiral spring is connected between the controller and the ratchet unit. Thus, the controller is pulled back to the original position to be closed by the spiral spring, thereby reducing number of the components such that the retractable safety gate has a simplified structure.11-14-2013
160305000 For spring operated roller 10
20080230191Roller Clutch Assembly - The present invention is a roller clutch assembly for a roller blind which operates smoothly and quietly. The roller clutch assembly includes an elongated roller tube having first and second opposite ends and a clutch coaxially mounted to the first end of the tube. The clutch has a peripheral section rotatably mounted to a fixed hub, the peripheral section being mounted to the tube such that the tube is free to rotate. The assembly also includes an elongated rod mounted within the roller tube, the rod having opposite first and second ends, the first end of the rod being mounted to the hub of the clutch. A mount is rotatably attached to the second end of the rod for mounting the rod within the tube such that the tube and rod are substantially coaxially aligned. A coil spring is coaxially mounted onto the elongated rod, the coil spring having opposite first and second ends, the first end of the spring being fixed to the rod adjacent the first end of the rod, the second end of the spring being fixed to the mounting adaptor such that the spring can be wound and unwound on the rod by rotating the tube. The spring is stretched onto the rod sufficiently such that the spring does not kink when wound.09-25-2008
20100122780SCREEN ROLLING DEVICE - The present invention relates to a screen rolling device, which includes a winding roller, an inner shaft, at least one metal strip roll and a screen. The inner shaft is located in the winding roller. The metal strip roll is wound around the inner shaft and has a first end and a second end. The first end is fixed to the inner shaft, and the second end drives the winding roller to rotate relatively to the inner shaft. The screen is wound around the winding roller and has a first end and a second end. The first end is fixed to the winding roller, and the second end is a free end. Therefore, the length of the screen pulled down by a user is the desired length and does not need further adjustment.05-20-2010
20110061821ROLL BLIND - A roll blind is provided which can guarantee a simple operation. The roll blind includes: a supporting frame disposed in a window frame; first and second winding bars rotatably disposed in the supporting frame; a winding driver rotationally driving one of the first and second winding bars; first and second screens coupled to the first and second winding bars, respectively; a weight bar to which the tower ends of the first and second screens are fixed; and a clutch unit binding and unbinding the first and second winding bars with respect to each other.03-17-2011
20110209836Window covering with improved controls - A window covering with improved controls enhances several aspects of window covering operation. A control mechanism provides a clutch module for selective locking and unlocking of a drive shaft used to retract and extend the shade element between storage and extended positions. The clutch module includes a reciprocator element that engages a key extending from an outer surrounding housing. A locking member between the reciprocator element and a coupling element carried by the drive shaft selectively locks and unlocks rotational coupling between the reciprocator element and the coupling element, thus selectively locking and unlocking the drive shaft. In a cushioning mechanism, a unidirectional dampening or frictional deceleration is provided for the drive shaft. The cushioning mechanism includes an impeller or rotor immersed in a cushion medium that impedes rotation of the rotor, and hence the drive shaft to which the rotor is coupled. A combination of the clutch module and cushioning mechanism is also disclosed as are window coverings containing one or more of the control mechanisms.09-01-2011
20110315327SUNSHADE - A sunshade includes a roller, a screen wound on the roller, a torque unit, and a latch unit. The torque unit is mounted in the roller, extends outwardly of the roller, and is disposed for urging movement of the screen to a wound state. The latch unit includes a plug disposed in the roller and formed with a pin hole, a pin member, and a biasing member disposed in the roller. The pin member has a main portion (12-29-2011
20130025803RESET MECHANISM FOR STORED ENERGY EMERGENCY BARRIERS - A stored energy emergency barrier release device comprising a barrier and a barrel member for storing the barrier thereon. The barrel member is rotatable on a stationary counterbalance shaft and a push down shaft. The release device further includes a push down spring coupled to the push down shaft for storing potential energy in order to exert a closing force on the barrier when the release device is positioned from an engaged position to a released position. The release device includes a reset mechanism interfaced with the push down spring for transmitting a lifting torque to the push down spring in response to moving the barrier from a first position to a second position to store energy within the push down spring.01-31-2013
20130025804DOOR MACHINE OF FIREPROOF DOOR - A door machine of a fireproof door comprises an input end to be actuated by an input axle; an output end loaded with weight of door panels, the loading force of which is transmitted back to a central axle through an output axle; a clutch mechanism normally connecting the central axle with the input axle together; a brake mechanism including a torsion spring which is integrated with the input axle of the input end and one end of which bears the loading force came from the central axle to shrink the inner diameter thereof so that the input axle is in an immobilized state; when an external force is applied to the input end, the other end of the torsion spring resisting against the weight of the door panels to expand the inner diameter thereof so that the input axle is rotated.01-31-2013
20140069596Single Cord Operated Clutch for Roller Blind - A clutch for a roller blind. The clutch comprises a drive shaft operatively connected to a drive mechanism, an idle shaft releasably coupled to the drive shaft, and a drive spring. The drive mechanism imparts rotational movement to the drive shaft. The idle shaft is operatively connected to the tube of the roller blind such that rotation of the idle shaft causes rotation of the roller blind tube. The drive spring is operatively associated with the idle shaft and with the drive shaft such that rotation of the drive shaft in a first direction causes the drive spring to impart rotational movement to the idle shaft, thereby causing rotation of the roller blind tube. When the drive shaft is rotated in a second opposite direction the drive spring permits the drive shaft to rotate independently of the idle shaft.03-13-2014
20140216667WINDOW TREATMENT ROLL-UP DEVICE - A window treatment roll-up device has: a support base, a rotation base, at least two power springs, a braking member and a control wheel. The support base comprises a first shaft, a second shaft, a third shaft and a fourth shaft, the third shaft and the fourth shaft are engaged with each other, a controlling rope wrapped around the second shaft, the rotation base is jacketed onto the second shaft. The control wheel is disposed on the fourth shaft and configured to be wrapped by a rolling rope. The braking member has a first end and a second end, the first end is tapered such that the braking member is cone-shaped; a spiral slot connecting between the first end and the second end is disposed on a surface of the braking member. The first end of the braking member and the power spring both jacket onto the third shaft.08-07-2014
20150020983RESET MECHANISM FOR STORED ENERGY EMERGENCY BARRIERS - A stored energy emergency barrier release device comprising a barrier and a barrel member for storing the barrier thereon. The barrel member is rotatable on a stationary counterbalance shaft and a push down shaft. The release device further includes a push down spring coupled to the push down shaft for storing potential energy in order to exert a closing force on the barrier when the release device is positioned from an engaged position to a released position. The release device includes a reset mechanism interfaced with the push down spring for transmitting a lifting torque to the push down spring in response to moving the barrier from a first position to a second position to store energy within the push down spring.01-22-2015
160307000 For strand operated roll 3
20120090795Manual Roller Shade System - A manual roller shade system includes a rotatably-mounted roller tube, a flexible shade fabric windingly received around the roller tube, and first and second elongated telescoping structures that allow for rotating the roller tube for manually raising and lowering the shade fabric. The roller shade system also has a clutch mechanism coupled to the roller tube, and a drive chain coupled to the clutch mechanism. The first and second elongated telescoping structures receive first and second end portions of the drive chain, respectively, and are connected to the first and second telescoping structures, such that the roller tube rotates in the first angular direction to raise the shade fabric when the first telescoping structure is pulled downward, and in the second angular direction to lower the shade fabric when the second telescoping structure is pulled downward.04-19-2012
160308000 Strand operated brake or stop 2
20110108215SYSTEMS AND METHODS FOR PROVIDING A SAFETY CORD FOR WINDOW COVERING SYSTEMS - The present teachings relate to window covering systems, and more particularly to systems and methods for providing a window covering with a plurality of safety lift cord assemblies structured and operable to be severable upon application of a longitudinal force greater than predetermined threshold force.05-12-2011
20140020854UNLOCKING ASSEMBLY FOR FEEDBACK WINDOW CURTAIN SET - An unlocking assembly for a feedback window curtain set, which is applicable for use in a window curtain set provided with a self-rewinding curtain having an automatic and feedback mechanism. When the curtain has been released to its lowermost position, the unlocking assembly for the entire unit unlocks a locking device. Free ends of lower sections of the pull cords pass through the underside of the counterweight pendulum rod to enable the pull cords to add to an unlock travel distance. The displacement length of the unlock travel distance is used to actuate a locking device of a winding unit, which enables unlocking the locked state of the curtain. Accordingly, when the curtain is released to any height, an unlocking operation can be effected at any time that rewinds the entire system, thus avoiding danger from the pull cords being exposed.01-23-2014

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