| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 160170000 | Drum or roller wound strand | 31 |
| 20080202705 | Cordless Blinds with Secondary Blind Adjustment Means - A cordless window covering system with a secondary mechanism to adjust the position of the window covering, to allow manual adjustment of the window covering when the bottom bar is out of reach by hand. In one embodiment, the secondary adjustment system includes a hooked hand tool that engages with a loop in the bottom bar. In another embodiment, the secondary adjustment system includes an exposed beaded corded coupled to the internal mechanisms of the system, so that pulling of beaded cord causes internal mechanisms to move and adjust the position of the window covering. | 08-28-2008 |
| 20080314530 | Window coverings - A window coverings includes an upper and a lower elongated members, a slat assembly, a first lift cord, a second lift cord and a lift cord retracting and releasing control means. The lift cord retracting and releasing control means is located at the upper elongated member and cooperative with the first and second lift cords to control movement of the slat assembly. The first lift cord has one end fastened to the lift cord retracting and releasing control means and other end threading through the upper elongated member. The second lift cord has one end fastened and wound around the lift cord retracting and releasing control means and threading through the upper elongated member. Through coupling relationship between the first and second lift cords and the lift cord retracting and releasing control means the slat assembly already rolled up or extended at a selected elevation can be altered to another elevation. | 12-25-2008 |
| 20090159219 | Cordless window blind structure - A cordless window blind structure is provided. A movable seat having a pulley block and a cord-winding assembly is disposed within a head rail of the cordless blind. The pulley block is connected to a lift cord wound through a first positioning element, so as to control the opening and closing of a blind body. And the cord-winding assembly has a cord winder attached to one end of a retrieving cord and a torsion spring. The other end of the retrieving cord is fastened either on the head rail, the movable seat, a second positioning element, or an end cap. The structure of the second positioning element is resembled to the first positioning element. By taking one end of the retrieving cord as a pivot, the movable seat moves laterally therealong the head rail by a restoring force generated through the torsion spring. | 06-25-2009 |
| 20090314440 | Window blind with controlling axle - The present invention relates to a controlling shaft, and more particularly to a controlling shaft for controlling blind, comprising a transverse shaft and a plurality of shaft controlling unit provided on the transverse shaft in turn. Due to the connecting relationship between the plurality of shaft controlling units and the transverse shaft, when the transverse shaft rotates, the plurality of shaft controlling units can synchronously rotate with the transverse shaft. Each shaft controlling unit of the plurality of shaft controlling units comprises a plurality of rotating members. When the shaft controlling unit rotates with the transverse shaft, the rotating members of each shaft controlling unit move in different pace. With the synchronous movement of the shaft controlling units with the transverse shaft, the particular points on the outer side of respective plurality of rotating members of any shaft controlling unit at the same level move to different extents. | 12-24-2009 |
| 20100006236 | Control device for slat blinds - A control device for blinds includes a transmission unit, a scrolling unit and a tilting unit, the transmission unit includes a case in which a coil spring and a gear unit are received. The coil spring is connected between the gear unit and the case. The scrolling unit includes two scrolling rods which are rotated with a transmission rod. Each scrolling rod has a lift cord wrapped thereon and extending through slats of the blinds. The tilting unit includes two tilt members connected to two respective end sections of the two scrolling rods. Two tilt cords have two respective positioning members which are clamped in two clamp grooves of the two tilt members and the tilt cords extend through the slats. The gears in the gear unit can be adjusted so as to cooperate with slats of different weights. | 01-14-2010 |
| 20100071858 | Window blind with controlling axle - A window blind includes an operation system, a slat system, and a controlling axle. The operation system includes a plurality of slat cords downwardly supported by a top support. The slat system includes a plurality of slat sets suspendedly supported by the slat cords respectively, wherein each of the slat sets includes a plurality of blind slats horizontally, spacedly and suspendedly supported through the slat cords. The controlling axle is rotatably supported along the top support, wherein the controlling axle includes a controlling shaft and a plurality of controlling units which are coaxially coupled at the controlling shaft and are coupled with the slat cords respectively. When the controlling shaft is driven to rotate, the blind slats are asynchronously and horizontally shifted in responsive to the controlling units so as to selectively adjust a light gap between every two the neighboring blind slats. | 03-25-2010 |
| 20100084099 | POLYGONAL TILT DRUM FOR VENETIAN BLINDS - A ladder drum for adjusting and regulating the angular orientation and closure of horizontal slats of a venetian blind, of the type incorporating ladder cords or tape ladders, having a polygonal profiled structure comprising a series of planar sidewalls defining a substantially hollow interior. The number of sidewalls defining the polygonal structure is greater than four sidewalls, and less than or equal to twelve sidewalls, with each adjacent plane sidewall having an internal angular orientation in the range of 90° to 150°. To enhance the uniform closure of the slats of a horizontal blind, the polygonal ladder drum is more preferably in the form of an uneven hexagon that is either formed from injection molded plastics or a metal die stamping. The opposing top and bottom sidewalls are greater in measurement than the remaining mediate sidewalls, with at least two opposing mediate sidewalls having attachment means to insert and retain ladder cords in a counter balanced relation. The lateral peripheral edges of the profile body have either flared openings or notches to catch and re-spool misaligned ladder cords. Ladder tapes may also be secured to the profile structure through die cut serrated prongs or through the use of a detachable serrated clip. | 04-08-2010 |
| 20100206492 | Window covering featuring automatic cord collection - A lifting mechanism is provided for a window covering which allows a bottom rail of the window covering to maintain a static position unless raised or lowered by a user. The lifting mechanism is included within either a top or bottom rail of the window covering. The lifting mechanism includes cords which pass from a rail including the lifting mechanism to the opposite rail, about cord redirecting tension sensors along the cord. The lifting mechanism includes spools and associated springs for gathering excess portions of the cord. A progressive resister is coupled to the spools to provide different amounts of resistance to spool rotation depending on the amount of cord upon each spool. The tension sensors sense cord tension and lock the cord when only tension associated with gravity is sensed and release the cord when elevated or reduced tension associated with lifting or lowering the bottom rail is sensed. | 08-19-2010 |
| 20110253321 | ACTUATOR MECHANISM FOR VENETIAN BLINDS - An actuator mechanism for window coverings, such as, Venetian blinds that eliminates the use of pull cords and tilting wands is provided. The actuator mechanism includes a stop member engageable with at least one of the slats to stop tilting movement thereof and a clutch arrangement between a drive axle and a tilt control mechanism, responsive to the stop member engaging at least one of the slats, to disengage the tilting force applied to a ladder cord supporting the slats. | 10-20-2011 |
| 20120118515 | LIFT CORD ASSEMBLY FOR VENETIAN BLIND - A lift cord assembly for a Venetian blind includes a first rotating member for connection of two ladder strings, and a second rotating member rotated synchronously with the first rotating member for connection of a single lift cord. By this design, the first rotating member and the second rotating member can be forced to rotate synchronously by the actuation of the lift cord, enabling the ladder strings to be wound around the first rotating member to fold slats of the Venetian blind. As a result, the ladder strings can be integrated by the lift cord assembly of the present invention into the lift cord so as to attain the purposing of enhancing safety of children in the household. | 05-17-2012 |
| 20120298317 | AUTOMATIC ROLL-UP DEVICE OF A VENETIAN BLIND - An automatic roll-up device is applied to a Venetian blind which rolls up laths by itself through a feedback action. The roll-up device uses specifically a single shaft tube, an interior of which provides axially for installation of a volute spring and which is driven directly by the volute spring. An outer circumference of the shaft tube links and rolls up lift cords directly to achieve a dual-functional roll-up effect in a limited and simple structure. | 11-29-2012 |
| 20130068402 | Venetian Blind - To reduce an opening and closing operation load in a venetian blind in which a lifting/lowering cord is disposed at a position offset from a central portion in a back and forth direction of a slat. At least one lifting/lowering cord is disposed along one vertical cord of front and back vertical cords and introduced into a head box from one side in a back and forth direction of the head box, and the other lifting/lowering cord is disposed along the other vertical cord and introduced into the head box from the other side in the back and forth direction of the head box. All the lifting/lowering cords introduced into the head box from the different sides in the back and forth direction of the head box are wound in the same direction by the lifting/lowering drums to which the respective ends of the lifting/lowering cords are connected. | 03-21-2013 |
| 20130133842 | LADDER TAPE FOR WINDOW COVERING AND SLAT ADJUSTING APPARATUS USING THE LADDER TAPE - A ladder tape includes two pairs of warp strings, and two weft strings repeatedly passing through the warp strings in a predetermined way to form two cords and a plurality of bridge sections between the cords. The weft strings respectively are wound around one section of each pair of the warp strings only to form an opening between the warp strings that the ladder tape may engage with the rotary drum of the window blind in a fast and easy way. The weft strings are wound around the warp strings in a way that the ladder tape will not get entangled with other objects unexpectedly. | 05-30-2013 |
| 20130180672 | LIFTING TYPE VENETIAN BLIND - A lifting Venetian blind having a rope lock device is equipped at an end of a head rail, a side cover is equipped at another end of the head rail, a piece of transverse shaft is equipped in a head rail assembly system, an end of the piece of transverse shaft is loaded in the rope lock device, and another end of the piece of transverse shaft is equipped with elevator components, which include an elevator connection seat, a ladder belt cover wheel brake shaft, a cloth wheel stop bit elastic device, a ladder belt cover wheel, a bearing block, a bearing, and an elevator belt rotating wheel. It solves a problem of light leaking through a hole on a blind slat to the greatest extent possible. When the blind is raised or lowered, an elevator belt is easily on and off and not mutually winding knot without noise. | 07-18-2013 |
| 20130312919 | SCROLLING UNIT FOR CORDLESS BLINDS - A scrolling unit for blinds includes a scrolling unit having a main wheel, at least one sub wheel and a scrolling spring. The main wheel has a spool and a cable is wrapped to the spool. The scrolling spring has an inner end and an outer end. The inner end is securely wrapped to the main wheel and the outer end is wrapped to the at least one sub wheel. The scrolling force of the inner end is larger than that of the outer end. The cable is wrapped to a mandrel unit in the head box. The cable extends through the head box and is connected to the bottom bar. The blinds are connected between the head box and the bottom bar to which the cable is fixed. The bottom bar is cooperated with the scrolling spring regardless the weight of the bottom bar. | 11-28-2013 |
| 20130340952 | SLAT ROTATION, SLAT WINDING AND UNWINDING CONTROL DEVICE OF WINDOW BLIND - In the present invention, flexible snap fit portions are provided on the base to engage directly into the upper beam so that the mounting of the base into the interior of the upper beam is easy. A cord spool is designed to be capable of continuing its rotation in a fitting member so that there is no limitation on the winding direction of the pull cord. Moreover, the fixing of either a connecting strap or a connecting string for connecting each slat of the window blind on a housing member is very easy. Therefore, easiness and handiness in operation can be improved in the overall implementation of the present invention. | 12-26-2013 |
| 20140083631 | PULL CORD DEVICE AND WINDOW COVERING INCLUDING THE SAME - A one-way damper unit of a pull cord device includes a unidirectional clutch that is disposed in a housing to form a liquid-filled gap therewith and that includes: a casing formed with deep and shallow groove portions; a main shaft having an insert segment extending into the casing and a connecting segment extending outwardly of the casing for connecting to a driven wheel; and a clutching member including a clutching body that extends into the groove and that has a cross-sectional dimension shorter than a distance between the insert segment and the deep groove portion, and longer than a distance between the insert segment and the shallow groove portion. | 03-27-2014 |
| 20140124149 | Venetian Blind and Control Device for the Same - A control device for a venetian blind, including a controller for controlling the venetian blind to draw and withdraw and a rotating handle for driving the controller to operate. The controller includes a first rotating member for driving a transmission shaft of the venetian blind to rotate and a second rotating member. The axis of rotation of the second rotating member and that of the first rotating member are orthogonal. The second rotating member is provided with a connection shaft connected with the rotating handle. The first rotating member is rotated coaxially with the transmission shaft to realize the drawing and withdrawing of the venetian blind. A venetian blind having the above control device for the venetian blind is further disclosed. | 05-08-2014 |
| 20140290876 | APPARATUS FOR A BLIND - An approach is provided for an apparatus for a blind is disclosed that comprises a rolling module and a control module. The rolling module is located above multiple tapes vertically spaced by a ladder cord. The control module is extended downwardly from the rolling module, and comprises an Epicyclic Gearing (EG) assembly, a spiral wand, a universal joint, a tilter and a control assembly. The EG assembly is configured for connecting the rolling module. The tilter is mounted at bottom of the spiral wand and is configured for controlling the flipping of the tapes. The control assembly is penetrated through the spiral wand, is supported by the tilter, and selectively moves up and down for rotating the spiral wand. The rolling module raises and/or lowers the tapes by the lifting cord according to the rotation of the spiral wand. | 10-02-2014 |
| 20140305601 | Spring counterbalance apparatus and method - A spring counterbalance apparatus and method consists of a shade system with a torque profile, where the shade system is connected with a drive shaft. A first spring system is connected with the drive shaft where the first spring system is a standard wound spring system. A second spring system is connected with the drive shaft where the second spring system is a reverse wound spring system and where, in combination, the first spring system and the second spring system produce a counterbalance torque profile approximately equal to the shade system torque profile. | 10-16-2014 |
| 20140345809 | WINDOW COVER SYSTEM WITH SPRING DRIVE ARRANGEMENT - A spring drive system useful for window covers is disclosed, which comprises one or more coil spring drives or flat spring drives and the combination whose elements are selected from one or more of a group which includes (1) a band or cord transmission which provides varying ratio power transfer as the cover is opened and closed; (2) gear means comprising various gear sets which provide frictional holding force and fixed power transfer ratios; (3) a gear transmission which provides fixed ratio power transfer as the cover is opened or closed; (4) crank mechanisms; (5) brake mechanisms; and (6) recoiler mechanisms. The combination permits the spring drive force to be tailored to the weight and/or compression characteristics of an associated window cover such as a horizontal slat or pleated or box blind as the cover is opened and closed. | 11-27-2014 |
| 20140352895 | Cord-Winding Assembly of a window blind - A cord-winding assembly of a window blind is disclosed. The cord-winding assembly includes a first spool and a second spool. The first spool has a first axis extending in an axial direction. A plurality of first grooves is formed on an outer periphery of the first spool. The first grooves are parallel to each other. Each of the plurality of first grooves has a circumferential length different from other first grooves. The second spool has a second axis extending in the axial direction. The first and second axes are parallel to each other. A plurality of second grooves is formed on an outer periphery of the second spool. The second grooves are parallel to each other. | 12-04-2014 |
| 20140360681 | Venetian blind with cord retractor - A blind of the type having raise cords, by means of which the blinds can be raised and lowered, comprising a raise cord storage device attached to the building fabric adjacent to the blind, which retrieves and stores the raise cords. | 12-11-2014 |
| 20140374034 | RAIL ANCHOR ASSEMBLY FOR CORDED WINDOW SHADES - A rail anchor assembly for a corded window shade is disclosed. The rail anchor assembly can include: a spool including a first aperture for allowing a cord of the corded window shade to pass axially into an interior cavity of the spool; and a second aperture for allowing the cord to exit the interior cavity of the spool; and a retaining component for affixing an end of the cord to a component of the window shade other than the spool. | 12-25-2014 |
| 20150136336 | CORD-WINDING DEVICE FOR VENETIAN BLIND - A cord winding device for a Venetian blind includes a receiving unit, a resilient driving unit mounted in the receiving unit, a braking unit mounted in the receiving unit and adjacent to the resilient driving unit, and a unidirectional damping unit mounted in the receiving unit. Through cooperation between the braking unit and the resilient driving unit, during winding and unwinding of pull cords, a bottom rail can be descended slowly and stopped conveniently at any desired height. | 05-21-2015 |
| 20150300082 | AUTOMATIC CORD COLLECTOR OF A WINDOW BLIND - An automatic cord collector of a window blind has a housing, a holding assembly mounted inside the housing with one end of each pull cord fastened therein, an adjusting assembly mounted inside the housing and extending into the holding assembly, and a spiral spring mounted inside the holding assembly. The adjusting assembly can be turned for the holding assembly to be unlocked or rotatable such that the spiral spring automatically drives the holding assembly to rotate for winding and collecting the pull cords. Users can pull the pull cords to rotate the holding assembly. When the pull cords need to be positioned, the adjusting assembly can be turned to abut against the holding assembly so that the holding assembly is unable to be rotated and the pull cords can be positioned. Accordingly, the automatic cord collector ensures operational convenience, cord safety and accident prevention. | 10-22-2015 |
| 20150354270 | RESISTANCE DROP DOWN CURTAIN SET - A resistance drop down curtain set is provided. An open/close state of the curtain set is changed by directly, manually operating a bottom edge of the curtain to provide a design for effectively preventing the curtain from sliding downwards. A thread exit position of a winding element is indirectly provided with a set of damping device. The damping device restrains a downward sliding force of a drawstring, and further stables a lower truss rod of the curtain to be positioned at a position of any desired horizontal height. | 12-10-2015 |
| 20160123071 | Cordless Window Shade and Spring Drive System Thereof - A spring drive system for a cordless window shade includes multiple rotary drums respectively connected with suspension cords, and one or more springs respectively connected with the rotary drums. The rotary drums are operatively connected with each other, so that they can synchronously rotate to wind and unwind the suspension cords. Moreover, each of the rotary drums is connected with an end of one spring. The spring torque can act to sustain a bottom part of the window shade at any desired height, and drive rotation of the rotary drums to wind the suspension cords when the bottom rail is raised upward. | 05-05-2016 |
| 20160123073 | BLIND BODY POSITIONING MECHANISM FOR NON PULL CORD WINDOW BLIND AND WINDOW BLIND USING THE SAME - A window body positioning mechanism of a non pull cord window blind includes a transmission unit including two first transmission wheels meshed together, a coil spring connected between the first transmission wheels and wound round one first transmission wheel, two second transmission wheels respectively meshed with one respective first transmission wheel, and two transmission cords each having one end thereof fixedly connected to one respective second transmission wheel and being wound round the respective second transmission wheel upon its rotation, and a damper unit including a damper and a reel connected to the damper and wound round by one transmission cord in such a manner that when the blind body is being extended out or received, the damper imparts a damping resistance to the transmission cords through the reel to achieve excellent positioning effects. | 05-05-2016 |
| 20160138330 | CORD-WINDING DEVICE FOR A BLIND ASSEMBLY HAVING NO PULL CORD - A cord-winding device for a blind assembly having no pull cord includes a base seat defining a slide channel and having a bottom side configured to removably mount the blind, assembly thereto, and an adjustment unit including a slide seat mounted slidably in the slide channel, a plurality of rollers mounted on the base seat and the slide seat, respectively, and a constant force spring having first and second ends respectively fixed to the base seat and the slide seat. A lift cord winds around the rollers and extends through the base seat. The lift cord is configured to extend through the blind assembly after extending through the base seat so as to fee positioned to the base seat and the blind assembly. | 05-19-2016 |
| 160171000 | Axially traversed drum or roller | 1 |
| 20100155000 | LIFT AND TILT MECHANISMS FOR A VENETIAN BLIND - The invention relates lift and tilt mechanisms for Venetian blinds typically, although not exclusively, comprising slats of very large dimensions, both relating to the width of the slats and to the longitudinal extension of the slats. Thus the venetian blind comprising these slats can be made to cover very large window openings or other parts of buildings and rooms. Both from a functional and from an aestethical point of view a precise and reliable raising and lowering of the slats of the Venetian blind as well as the tilting of the slats is very important. The present invention provides improved mechanisms for attaining these characteristics. | 06-24-2010 |
