EP2436869A2 - Sich selbst anhebende Fensterabdeckung - Google Patents

Sich selbst anhebende Fensterabdeckung Download PDF

Info

Publication number
EP2436869A2
EP2436869A2 EP11195181A EP11195181A EP2436869A2 EP 2436869 A2 EP2436869 A2 EP 2436869A2 EP 11195181 A EP11195181 A EP 11195181A EP 11195181 A EP11195181 A EP 11195181A EP 2436869 A2 EP2436869 A2 EP 2436869A2
Authority
EP
European Patent Office
Prior art keywords
drive axle
cord
spring
window covering
winding assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11195181A
Other languages
English (en)
French (fr)
Other versions
EP2436869B1 (de
EP2436869A3 (de
Inventor
Fu-Lai Yu
Chin-Tien Huang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teh Yor Co Ltd
Original Assignee
Teh Yor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teh Yor Co Ltd filed Critical Teh Yor Co Ltd
Priority to EP11195181.0A priority Critical patent/EP2436869B1/de
Publication of EP2436869A2 publication Critical patent/EP2436869A2/de
Publication of EP2436869A3 publication Critical patent/EP2436869A3/de
Application granted granted Critical
Publication of EP2436869B1 publication Critical patent/EP2436869B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E06B2009/3222—Cordless, i.e. user interface without cords
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E06B2009/3225—Arrangements to aid the winding of cords rollers
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/26—Lamellar or like blinds, e.g. venetian blinds
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E06B2009/3225—Arrangements to aid the winding of cords rollers
    • E06B2009/3227—Axially moving rollers
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/60—Spring drums operated only by closure members

Definitions

  • the present invention relates to a window covering that may be raised without the need to apply a force to either a control mechanism or the window covering itself as the window covering is opened.
  • the present invention relates to a window covering having a control mechanism configured to exert an upward force on the shade element and bottom rail that is of sufficient magnitude to raise the shade element and bottom rail without additional force being applied by the user during raising.
  • Window shades and coverings are found in many applications and used to regulate the amount of light entering a room, and to provide aesthetic appeal to a decor. Such window shades and coverings take many forms, including roller shades, Roman shades, Venetian blinds, and cellular shades.
  • Conventional cellular or pleated shades utilize cord locks or a transmission mechanism to raise, lower and position the window covering in a desired position. With window coverings utilizing a cord lock, cords run up through the folded fabric, across the inside of a head rail and exit through a locking mechanism.
  • Other cellular shades include a transmission mechanism and a continuous loop cord that is pulled by a user to raise and lower the window shade.
  • Roman shades and Venetian blinds also tend to include raising cords that are secured to a lower bar or bottom rail.
  • Cords present the potential hazard of a child getting caught in or strangled by the exposed control cord.
  • Cords also tend to distract from the aesthetics of a window covering in that they extend along the face of the window covering and, when the window shade is opened, must either be wrapped on a hook or just left on the floor.
  • window coverings that utilize cord locks the cords also experience substantial wear due to friction against surfaces as a result of raising and lowering of the window covering.
  • roller shades which operate in the absence of a cord.
  • These roller shades include a wound torsion-spring retraction mechanism in combination with a clutch or locking mechanism mounted with a roller onto which the shade is rolled and collected.
  • a roller shade is pulled down by a user to a desired location, where it is locked in place by the clutch or locking mechanism.
  • the user typically pulls on a bottom rail of the shade, extending the shade sufficiently to disengage the internal clutch or locking mechanism within.
  • the clutch or locking mechanism is disengaged and the user releases the shade, the shade is retracted using the torsion-spring driven retraction mechanism.
  • Known roller shades are only operable with flat shade material which rolls up neatly into a confined location.
  • roller shades are not compatible with other window coverings, such as cellular shades, Venetian blinds, and Roman shades.
  • window coverings such as cellular shades, Venetian blinds, and Roman shades.
  • a similar lifting mechanism is typically unsuitable in cellular shades, Venetian blinds, and Roman shades.
  • the material of the shade element is typically gathered by raising a bottom member, such as a bottom rail, and increasing amounts of weight are gathered on the bottom member as the window covering is raised. The reason for this is that the shade material or shade element increasingly stacks on the bottom rail as the bottom rail rises, which increases the load on the lifting mechanism.
  • variable force springs have been used. Such variable force springs are substantially more complicated in use and manufacture.
  • window covering raising mechanism for window coverings such as Venetian blinds, cellular shades and Roman shades that is self-raising and overcomes the foregoing problems.
  • the present invention relates to a self-raising window covering and a control mechanism for the window covering.
  • the window covering is a self-raising window covering that includes a head rail, a shade element, such as a cellular panel, blind slats, or Roman shade material, a bottom rail, at least one raising cord operatively connected at a first end to the bottom rail, and a control mechanism.
  • the head rail may define an elongated channel wherein the control mechanism is disposed therein.
  • the control mechanism includes a drive axle and a drive unit operatively connected with the drive axle.
  • the drive unit which may be a constant force spring, is adapted to provide a substantially constant rotational force on the drive axle.
  • At least one cord winding assembly is also provided in co-axial relation with the drive axle.
  • the number of cord winding assemblies will be the same as the number of raising cords.
  • one cord winding assembly may be adapted to operate with multiple cords.
  • the cord winding assembly includes at least one winding drum operatively connected to a second end of the raising cord and having a tapered portion.
  • the cord winding assembly also includes a rotatable positioning member for moving the cord winding assembly laterally along the drive axle upon rotation of the positioning member.
  • the positioning member is a threaded tubular member connected to the winding drum.
  • the cord winding assembly is adapted to translate the rotational force on the drive axle to a raising force on the raising cord, wherein the raising force is greater than a total downward force exerted by the shade element and bottom rail throughout the range of opening and closing.
  • the cord winding assembly is rotationally secured with the drive axle by a hub member adapted to engage the cord winding assembly and the drive axle.
  • the hub member may be in a sliding relationship with the tapered portion of the cord winding assembly.
  • a clutch member or locking member is also operatively connected with the axle and adapted to releasably lock the drive axle in a desired position.
  • the clutch member comprises a reciprocator disposed coaxially relative to the drive axle and movable between a released position and a locked position, and a spring member connected to the reciprocator and operable to either tighten or relax the hold of the reciprocator on the drive axle.
  • the reciprocator is configured to cause the spring member to tighten on the drive axle in the locked position for blocking a rotation of the drive axle against the rotational force applied by the drive unit, and cause the spring member to relax the drive axle in the released position to permit a rotation of the drive axle under the rotational force applied by the drive unit
  • FIGURE 1 an embodiment of a self-raising window covering 10 according to the present invention is shown.
  • a head rail 12 defining a channel is provided.
  • a pair of drive units, such as spring units 14 and 16 are coaxially mounted about a drive axle 18.
  • cord winding assemblies 20 and 22 are mounted on drive axle 18.
  • Each of cord winding assemblies 20 and 22 includes a frustoconical winding drum 24 and 26, and a threaded tubular member 32 and 34, respectively.
  • Raising cords 28 and 30, which are shown as wound on winding drums 24 and 26, are secured at an end to the winding drums 24 and 26.
  • a clutch 36 is also provided and co-axially mounted on the drive axle 18.
  • Window covering 10 further includes a shade element, such as cellular shade material 38 and a bottom member, such as bottom rail 40.
  • a shade element such as cellular shade material 38
  • a bottom member such as bottom rail 40.
  • the term "cord” as used may encompass a cord, strip, ribbon, string or any similar flexible elongated elements that are suitable for supporting the suspended shade element, and can be wound or unwound to deploy or retract the shade element.
  • a relatively short length of cord 42 can also be provided so that the user can pull down the window covering and, as will be discussed in further detail, release the clutch so that the window covering will retract itself.
  • the spring unit 14 comprises a spring casing 42, a spring axle 44, a constant force coil spring 46 and a cover 48.
  • the coil spring 46 and the spring axle 44 are secured within the casing 42, which is closed by cover 48.
  • a first end 50 of the coil spring 46 is secured to the spring axle 44, which is coaxially connected to the drive axle 18 ( FIG. 1 ).
  • the coil spring is configured to provide sufficient rotational force to the drive axle 18 and winding drums 24 and 26 to raise the shade element and bottom rail.
  • Other alternative embodiments of spring units are also possible, such as shown in FIGS. 3-6 .
  • a suitable spring unit 114 shown in FIG. 3 may include a coiled spring member 146 having a first end secured with a first spring axle 142 that connects to the drive axle 18 shown in FIG. 1 , and a second end secured with a second spring axle 144 that is offset from the first spring axle 142.
  • the coiled spring 146 in a relaxed position may be initially wound around the second spring axle 144. As the shade element is pulled downward, the coiled spring 146 may stretch out from the second spring axle 144 and progressively wind around the first spring axle 142.
  • This configuration of the spring unit 114 may be suitable when the used coiled spring 146 has a greater length to allow a longer deployment range of the shade element.
  • FIG. 4 illustrates another suitable spring unit 214, which is similar to the embodiment shown in FIG. 3 except that the second end of the coiled spring does not connect to any second spring axle. Instead, the coiled spring 246 winds on itself at its second end, while the first end 252 of the coiled spring 246 connects to a single spring axle 218 connected to the drive axle 18 shown in FIG. 1 .
  • spring unit 314 includes an assembly of two coiled springs 346 and 348 that may be used to provide a greater raising force for the shade element.
  • the first coiled spring 346 has its first end connected to a first spring axle 344
  • the second coiled spring 348 has its first end connected to a second spring axle 345.
  • the second end of the first coiled spring 346 and the second end of the second coiled spring 348 respectively connect to a third spring axle 318 located between the first and second spring axles 344 and 345 and connected to the drive axle 18.
  • the coiled springs 346 and 348 may respectively stretch out from the first and second spring axle 344 and 345 to progressively wind around the third spring axle 318 to apply an increased raising force on the drive axle 18.
  • the shown embodiment is very similar to that shown in FIG. 5 except that the two coiled springs 446 and 448 that wind on the axle 418 connected to the drive axle do not connect with second spring axles.
  • each of the embodiments shown utilizes a spring as the driving mechanism for the drive unit, it should be understood that any suitable mechanism for imparting a rotational force on the drive axle may be utilized.
  • the rotational force exerted upon a drive axle 18 causes the cord winding assemblies 20 and 22 to rotate and translate for winding the cords 28 and 30, which thereby raises the shade element 38 vertically toward the head rail 12. Further details on a preferred embodiment of a cord winding assembly are provided with reference to FIG. 7 .
  • Cord winding assembly 20 is mounted co-axially with the drive axle 18 that passes through a fixed housing comprised of a frame 64 and upper cover 65.
  • the cord winding assembly 20 includes a winding drum 24 and a rotational positioning member, such as threaded tubular member 32, fixedly connected at an end of the winding drum 24.
  • the cord winding assembly 20 is preferably mounted on the drive axle 18 via a hub member, such as adapter 60 that is configured to transmit rotational movement between the drive axle 18 and the cord winding assembly 20 while allowing a relative translation movement therebetween.
  • the adapter 60 may be coaxially mounted inside a central hole of the winding drum 24, and include a through hole for mounting the drive axle 18.
  • a peripheral surface of the adapter 60 may be provided with radial portions that contact with ribs protruding radially inward from the surface of the central hole of the winding drum 24.
  • the threaded tubular member 32 engages with toothed rollers 66, which are rotatably mounted to frame 64 and bracket 68 fixedly secured in head rail 12. Rotational movements thereby can be transferred between the drive axle 18 and the cord winding assembly 20, while smooth relative translations with reduced frictions are permitted therebetween.
  • the engagement via the adapter 60 and the threaded tubular member 32 allows an improved support of the load of the suspended components, e.g. shade element 38 and bottom rail 40.
  • the winding drum 24 is tapered and is preferably frustoconical in shape, and may include striations or grooves to improve gripping of the cord 28 wound on the surface of the winding drum 24.
  • An end of the raising cord (not shown) is secured towards the larger diameter end 62 of the winding drum 24.
  • the cord winding assembly 20 rotates and translates in a direction to wind the raising cord 28, the raising cord is wrapped around increasingly narrower portions of the winding drum 24.
  • FIGS. 8A and 8B the raising operation of the window covering is shown.
  • the shade element 38 When the shade element 38 is fully deployed, as shown in FIG. 8A , the raising cord 28 is fully extended from a wider portion of the winding drum 24.
  • the threaded engagement between the threaded tubular member 32 and rollers 66 causes the rotating cord winding assembly 20 to move laterally within the head rail 12, such that the raising cord winds along the winding drum 24 towards its narrower end.
  • the load on the spring units is now described with reference to one of the spring units.
  • the load on one spring unit 14 is derived with an adequate scale factor from a momentum M on the drive axle 18 that can be approximated by the product between the suspended weight W, including the weight of the bottom rail plus the amount of shade element 38 stacked thereon, and a winding radius R of the winding drum 24.
  • W will increase, and R will decrease because the raising cord 28 winds on increasingly narrower portions of the tapered winding drum 24 that slide with reduced frictions owing to the adapter 60 and threaded tubular member 32 and adapter 60.
  • the load M on one spring unit 14 can be kept at a level that varies slightly and can be overcome by the constant force spring 46 ( FIG. 2 ) to fully raise the bottom rail 40 and shade element 38.
  • the constant force spring 46 FIG. 2
  • a user exerts an approximately constant pulling force regardless of the position in height of the window covering.
  • spring units 14 and 16 of constant force thus can be suitably used to raise a suspended weight charge W that increases as it rises.
  • the shade element itself may have an effect on the total downward force or suspended weight.
  • an inherent upward spring bias to the material may serve to decrease the total downward force. The total contribution of this spring bias varies depending on the degree to which the cellular window covering is extended.
  • the clutch member 36 is provided in order to lock the shade element 38 and bottom rail 40 in a desired position.
  • Clutch member 36 is mounted coaxially with the drive axle 18 and is configured to unlock the drive axle 18 as the user pulls down the bottom rail 40 to stretch the shade element 38, and to lock the drive axle 18 when the user releases the bottom rail 40 at the desired height.
  • the clutch disengages and allows the bottom rail 40 to be raised by the spring units 14 and 16.
  • the clutch member 36 includes a casing 70 that has fixed protrusions 72 and 74.
  • a collar 76 rotating with the drive axle 18 is provided, which reciprocates axially along the drive axle 18.
  • a reciprocator 78 is co-axially mounted over collar 76 and is movable both rotatably and axially therewith.
  • a spring 80 having a first end 82 and a second end 84 is provided between collar 76 and reciprocator 78.
  • FIGS. 9A and 9B show the clutch when the window covering 10 is in a fully raised position.
  • Spring 80 is in a relaxed condition with second end 84 in an abutting relationship with protrusion 74.
  • FIGS. 10A and 10B when the user pulls on the bottom rail (not shown), a clockwise rotation (as shown) of the axle 18 and the collar 76 occurs and causes the second end 84 of the spring 80 to disengage from protrusion 74.
  • Spring 80 tightens on collar 76 such that rotation of the collar 76 is transmitted to reciprocator 78 via the contact between first end 82 of the spring 80 and reciprocator 78, which brings reciprocator 78 into abutment with protrusion 72.
  • Window covering 510 includes a head rail 512 having a pair of spring units 514 and 516 mounted with a drive axle 518.
  • Cord winding assemblies 520 and 522 are also provided. Raising cords 528 and 530 pass through shade element 538 and are connected with bottom rail 540.
  • at least one deceleration member 550 is provided. Deceleration member 550 is engageable with one cord winding assembly 522 to slow down the rise of the bottom rail 540 as it approaches the head rail.
  • FIGS. 15A - 15C The preferred embodiment of the deceleration member 520 is shown in FIGS. 15A - 15C .
  • the cord winding assembly 522 In the position of FIG. 15A , the cord winding assembly 522 is disengaged from the deceleration member 550. As the cord winding assembly 522 winds the cord 526, the cord winding assembly 522 also moves towards the deceleration member 550. As the cord winding assembly 522 engages with a plate 552 of the deceleration member 550 as shown in FIG 15B , the rotation of the cord winding assembly 522 causes the plate 552 to rotate.
  • the plate 552 is connected to an axle sleeve 554, which is in contact with a decelerating member, such as viscous oil liquid, contained inside a housing 556.
  • a decelerating member such as viscous oil liquid
  • the sleeve 554 is configured to achieve a resistant contact with the decelerating member to decelerate the rotation of the cord winding assembly.
  • protrusions or fins may be provided on the axle sleeve 554. The rate at which the bottom rail is raised by the spring units 514 and 516 is slowed as the bottom rail reaches the head rail so that the bottom rail more smoothly stops at a fully opened position.
  • a further aspect of the invention provides a control mechanism for a self-raising window covering, the window covering including a head rail, a suspended shade element, a bottom rail, and at least one raising cord operatively connected at a first end to the bottom rail
  • the control mechanism comprising: a drive axle; a drive unit operatively connected with the drive axle to apply a substantially constant rotational force on the drive axle; at least one cord winding assembly mounted on the drive axle and including a winding portion having a first end with a first diameter and decreasing in diameter to a second end having a second diameter less than the first diameter, wherein the cord winding assembly is operable under the rotational force applied by the drive unit to wind the raising cord for raising a suspended weight comprised of at least the bottom rail and a portion of the shade element that is stacked on the bottom rail; and a clutch member operatively connected with the drive axle and adapted to releasably lock the drive axle and block rotation of the drive axle against the rotational force applied by the drive unit.
  • the drive unit may comprise a constant force spring.
  • the cord winding assembly may be rotationally secured with the drive axle through a hub member adapted to engage the cord winding assembly and the drive axle.
  • the hub member may be in sliding engagement with the winding portion of the cord winding assembly.
  • the cord winding assembly may include a threaded tubular member that engages with one or more toothed rollers to cause an axial translation of the cord winding assembly along the drive axle as the cord winding assembly rotates.
  • the clutch member may comprise: a reciprocator disposed coaxially relative to the drive axle and movable between a released position and a locked position; and a spring member connected to the reciprocator and operable to either tighten or relax the hold of the reciprocator on the drive axle; wherein the reciprocator is configured to cause the spring member to tighten on the drive axle in the locked position for blocking a rotation of the drive axle against the rotational force applied by the drive unit, and cause the spring member to relax the drive axle in the released position to permit a rotation of the drive axle under the rotational force applied by the drive unit.
  • the clutch member further may comprise an annular collar secured with the drive axle and having a peripheral surface around which the spring member is mounted.
  • the control mechanism may further comprise a deceleration member engageable with the cord winding assembly to decelerate a rising movement of the bottom rail towards the head rail.
  • a further aspect of the invention provides a self-raising window covering, comprising: a head rail defining an elongated channel; a bottom member; a shade element suspended between the head rail and the bottom member; and a control mechanism mounted within the channel of the head rail, the control mechanism including: a drive axle operable to rotate under a substantially constant rotational force applied by a drive unit; at least one cord winding assembly mounted on the drive axle and including a winding portion having a first end with a first diameter and decreasing in diameter to a second end with a second diameter less than the first diameter; at least one raising cord having a first end and a second end, the first end being secured towards the first end of the winding portion and the second end connected with the bottom member; and a clutch member operatively connected with the drive axle and adapted to releasably block a rotation of the drive axle.
  • the drive unit may comprise a constant force spring.
  • the cord winding assembly may be mounted on the drive axle by a hub member.
  • the hub member may be in sliding engagement with the winding portion of the cord winding assembly.
  • the cord winding assembly may include a threaded tubular member that engages with one or more toothed rollers to cause an axial translation of the cord winding assembly along the drive axle when the cord winding assembly rotates.
  • the clutch member may comprise: a reciprocator disposed coaxially relative to the drive axle and movable between a released position and a locked position; and a spring member connected to the reciprocator and operable to either tighten or relax the hold of the reciprocator on the drive axle; wherein the reciprocator is configured to cause the spring member to tighten on the drive axle in the locked position for blocking a rotation of the drive axle against the rotational force applied by the drive unit, and cause the spring member to relax the drive axle in the released position to permit a rotation of the drive axle under the rotational force applied by the drive unit.
  • the clutch member may further comprise an annular collar secured with the drive axle and having a peripheral surface around which the spring member is mounted.
  • the control mechanism may further comprise a deceleration member engageable with the cord winding assembly to decelerate a rising movement of the bottom member towards the head rail. 17.
  • the shade element may include a collapsible cellular shade.
  • a further aspect of the invention provides a self-raising window covering comprising: a head rail; a plurality of raising cords suspended from the head rail; a bottom member suspended from the head rail by the raising cords; a shade element suspended between the head rail and the bottom member; a clutch member operatively connected with a drive axle and adapted to releasably lock the drive axle; the head rail further comprising a control mechanism, the control mechanism including a drive unit adapted to apply a substantially constant rotational force on the drive axle and a cord winding assembly co-axially mounted on the drive axle, the cord winding assembly configured to translate the rotational force of the drive unit to a linear raising force on the raising cords and to increase the raising force as the bottom member is raised; and wherein the linear raising force is sufficient to fully raise the bottom rail and shade element as the window covering is moved from a closed position to an open position.
  • the cord winding assembly may include a winding drum having a tapered portion and a positioning member adapted to urge the cord winding assembly laterally along the drive axle when rotated.
  • the cord winding assembly may be rotationally secured with the drive axle by a hub member adapted to engage the cord winding assembly and the drive axle.
  • the hub member may be in sliding engagement with a tapered portion of the cord.
  • the positioning member may be a threaded tubular member.
  • the drive unit may comprise a constant force spring.
  • the clutch member may comprise a spring member adapted to releasably secure the position of the drive axle when in a tightened condition and to permit rotation of the drive axle when in a relaxed condition; the clutch member further including a reciprocator disposed annularly about the drive axle and adapted to selectively hold the spring member in the tightened and related positions.
  • the window covering may further comprise an annular collar secured with the drive axle and connected with the spring member.
  • the window covering may further comprise a deceleration member engageable and in a co-axial relation with the cord winding assembly.
EP11195181.0A 2007-07-19 2007-07-19 Sich selbst anhebende Fensterabdeckung Active EP2436869B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11195181.0A EP2436869B1 (de) 2007-07-19 2007-07-19 Sich selbst anhebende Fensterabdeckung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/US2007/016365 WO2009011681A1 (en) 2007-07-19 2007-07-19 Self-raising window covering
EP07796943A EP2181233B1 (de) 2007-07-19 2007-07-19 Selbsthebende fensterabdeckung
EP11195181.0A EP2436869B1 (de) 2007-07-19 2007-07-19 Sich selbst anhebende Fensterabdeckung

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP07796943.4 Division 2007-07-19
EP07796943A Division EP2181233B1 (de) 2007-07-19 2007-07-19 Selbsthebende fensterabdeckung

Publications (3)

Publication Number Publication Date
EP2436869A2 true EP2436869A2 (de) 2012-04-04
EP2436869A3 EP2436869A3 (de) 2012-04-18
EP2436869B1 EP2436869B1 (de) 2017-04-05

Family

ID=40259881

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07796943A Active EP2181233B1 (de) 2007-07-19 2007-07-19 Selbsthebende fensterabdeckung
EP11195181.0A Active EP2436869B1 (de) 2007-07-19 2007-07-19 Sich selbst anhebende Fensterabdeckung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07796943A Active EP2181233B1 (de) 2007-07-19 2007-07-19 Selbsthebende fensterabdeckung

Country Status (12)

Country Link
EP (2) EP2181233B1 (de)
JP (1) JP5209052B2 (de)
KR (1) KR101314077B1 (de)
AT (1) ATE550512T1 (de)
AU (1) AU2007229388B2 (de)
BR (1) BRPI0721879A2 (de)
CA (1) CA2693056C (de)
DE (1) DE112007000007T5 (de)
ES (1) ES2381378T3 (de)
PL (1) PL2181233T3 (de)
RU (1) RU2479704C2 (de)
WO (1) WO2009011681A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103748306B (zh) * 2011-08-25 2015-08-12 金桢旼 具有单一安全线的卷帘
US10292538B2 (en) 2012-10-11 2019-05-21 Roman Tsibulevskiy Partition technologies
US9949597B2 (en) 2012-10-11 2018-04-24 Roman Tsibulevskiy Partition technologies
US9192267B2 (en) 2012-10-11 2015-11-24 Roman Tsibulevskiy Shower curtain technologies
US9955825B2 (en) 2012-10-11 2018-05-01 Roman Tsibulevskiy Partition technologies
US11083344B2 (en) 2012-10-11 2021-08-10 Roman Tsibulevskiy Partition technologies
US9510711B2 (en) 2012-10-11 2016-12-06 Roman Tsibulevskiy Partition technologies
NL1040420C2 (en) * 2013-10-01 2015-04-16 Hunter Douglas Ind Bv Rail for an architectural covering.
DE112014004535T5 (de) * 2013-10-01 2016-06-16 Hunter Douglas Industries B.V. Schiene für eine architektonische Abdeckung
EA026776B1 (ru) * 2014-10-14 2017-05-31 Общество С Ограниченной Ответственностью "Алютех Инкорпорейтед" Устройство компенсации прогиба вала роллетной системы
CN105649517B (zh) * 2014-11-11 2017-11-24 瑞安市雅木窗饰有限公司 拉珠式百叶窗
GB2544154B (en) * 2015-09-03 2021-10-06 Alplas Shutters & Louvres Pty Ltd Motorized blind arrangement
JP7059073B2 (ja) * 2017-09-08 2022-04-25 立川ブラインド工業株式会社 遮蔽装置
JP7090457B2 (ja) * 2018-04-05 2022-06-24 立川ブラインド工業株式会社 遮蔽装置、及び遮蔽材駆動装置
CN215974326U (zh) * 2021-06-25 2022-03-08 东莞市雷富溢窗饰科技有限公司 窗帘绕线装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056036A (en) 1997-05-01 2000-05-02 Comfortex Corporation Cordless shade
US6666252B2 (en) 1997-12-12 2003-12-23 Hunter Douglas Industries Bv Winding mechanism

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2390826A (en) * 1943-12-16 1945-12-11 Automatic Venetian Hardware Co Cordless venetian blind
JP3098945B2 (ja) * 1995-12-07 2000-10-16 株式会社ニチベイ ブラインド
JP2000130052A (ja) 1998-10-26 2000-05-09 Tachikawa Blind Mfg Co Ltd 日射遮蔽材の昇降装置
US6536503B1 (en) * 1999-03-23 2003-03-25 Hunter Douglas Inc. Modular transport system for coverings for architectural openings
US6622769B2 (en) * 2000-04-14 2003-09-23 Ren Judkins Lift system having length adjustment for window blinds
US6854503B2 (en) * 2002-03-20 2005-02-15 Rollease, Inc. Semi-cordless unbalanced spring driven blind system and methods for adjusting and making same
US7137430B2 (en) * 2002-03-25 2006-11-21 Rollease, Inc. Mono control lift and tilt mechanism for horizontal blinds
US6837294B2 (en) 2003-02-10 2005-01-04 Zipshade Industrial (B.V.I.) Corp. Pull down, push up, shade assembly
US20060037720A1 (en) * 2004-08-19 2006-02-23 Shien-Te Huang Brake mechanism for curtain linkage system
WO2007027650A1 (en) * 2005-09-02 2007-03-08 Hunter Douglas Inc. Selective tilting arrangement for a blind system for coverings for architectural openings
US7520311B2 (en) * 2005-12-22 2009-04-21 Hunter Douglas Inc. Threaded lift cord spool for coverings for architectural openings

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056036A (en) 1997-05-01 2000-05-02 Comfortex Corporation Cordless shade
US6666252B2 (en) 1997-12-12 2003-12-23 Hunter Douglas Industries Bv Winding mechanism

Also Published As

Publication number Publication date
RU2479704C2 (ru) 2013-04-20
PL2181233T3 (pl) 2012-08-31
JP5209052B2 (ja) 2013-06-12
EP2181233B1 (de) 2012-03-21
KR101314077B1 (ko) 2013-10-04
EP2181233A1 (de) 2010-05-05
EP2181233A4 (de) 2010-08-18
RU2011131825A (ru) 2013-02-10
AU2007229388B2 (en) 2011-02-03
JP2010533809A (ja) 2010-10-28
DE112007000007T5 (de) 2010-06-02
WO2009011681A1 (en) 2009-01-22
KR20100052454A (ko) 2010-05-19
BRPI0721879A2 (pt) 2014-02-18
EP2436869B1 (de) 2017-04-05
EP2436869A3 (de) 2012-04-18
ES2381378T3 (es) 2012-05-25
CA2693056A1 (en) 2009-01-22
AU2007229388A1 (en) 2009-02-05
CA2693056C (en) 2014-02-18
ATE550512T1 (de) 2012-04-15

Similar Documents

Publication Publication Date Title
US7624785B2 (en) Self-raising window covering
EP2436869B1 (de) Sich selbst anhebende Fensterabdeckung
US10907406B2 (en) Cordless retractable roller shade for window coverings
EP0918133B1 (de) Betätigungsmechanismus für Abdeckungen von architektonischen Öffnungen
KR101938904B1 (ko) 이동가능한 레일의 제어
CA2623584C (en) Roll up covering for architectural openings having top down/bottom up capability
US20040074611A1 (en) Bottom-up/top-down retractable cellular shade
GB2367087A (en) Blind having variable resistance to movement
CA2753328C (en) Self-raising window covering
RU2433240C1 (ru) Самоподнимающееся оконное закрывающее средство
JP5732361B2 (ja) 自動上昇式の窓覆い
JP2021070950A (ja) 遮蔽装置
CA2546676A1 (en) Cordless window covering
JP2002238735A (ja) ローマンシェード
AU2006202791A1 (en) Cordless window covering

Legal Events

Date Code Title Description
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AC Divisional application: reference to earlier application

Ref document number: 2181233

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

RIC1 Information provided on ipc code assigned before grant

Ipc: E06B 9/322 20060101AFI20120309BHEP

REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1165842

Country of ref document: HK

17P Request for examination filed

Effective date: 20121018

17Q First examination report despatched

Effective date: 20130327

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20161104

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 2181233

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 882013

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170415

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007050525

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 882013

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170405

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170706

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170805

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170705

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007050525

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed

Effective date: 20180108

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170719

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170719

REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1165842

Country of ref document: HK

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20070719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170405

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170405

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20210727

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20210726

Year of fee payment: 15

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220719

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220719

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20230720

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230717

Year of fee payment: 17