WO2008015442A1 - Caches et composants de ceux-ci - Google Patents

Caches et composants de ceux-ci Download PDF

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Publication number
WO2008015442A1
WO2008015442A1 PCT/GB2007/002941 GB2007002941W WO2008015442A1 WO 2008015442 A1 WO2008015442 A1 WO 2008015442A1 GB 2007002941 W GB2007002941 W GB 2007002941W WO 2008015442 A1 WO2008015442 A1 WO 2008015442A1
Authority
WO
WIPO (PCT)
Prior art keywords
blind
mounting
glazing pane
cord
bead
Prior art date
Application number
PCT/GB2007/002941
Other languages
English (en)
Inventor
Neil Wilson
Original Assignee
Turnils (Uk) Limited
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
Priority claimed from GB0615518A external-priority patent/GB2440536B/en
Application filed by Turnils (Uk) Limited filed Critical Turnils (Uk) Limited
Priority to EP07789099.4A priority Critical patent/EP2054579B1/fr
Priority to JP2009522336A priority patent/JP2010510408A/ja
Priority to BRPI0715133-0A priority patent/BRPI0715133A2/pt
Priority to AU2007280240A priority patent/AU2007280240A1/en
Priority to MX2009001276A priority patent/MX2009001276A/es
Priority to US12/375,790 priority patent/US20090256036A1/en
Publication of WO2008015442A1 publication Critical patent/WO2008015442A1/fr

Links

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
    • E06B9/323—Structure or support of upper box
    • 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
    • E06B9/327—Guides for raisable lamellar blinds with horizontal lamellae

Definitions

  • the present invention relates to blinds (or shades) such as roller blinds, vertical blinds, Roman blinds and, in particular, to Venetian blinds and pleated blinds for use primarily at glazed windows, and to apparatus by which such blinds are mounted in their location of use.
  • the present invention relates to blinds comprising a head rail and a bottom rail between which cords are tensioned to support a blind between the rails.
  • the invention also relates to components used in the manufacture of such blinds or apparatus.
  • the blinds and apparatus of the invention are applicable primarily to apertures glazed with a transparent, translucent, coloured or colourless glazing pane or panel, but may also be used with other suitable glazing materials such as transparent, translucent, coloured or colourless plastic sheets.
  • glazed window refers primarily to external windows of buildings such as houses and offices and also includes conservatories. Further, unless the context requires otherwise, "glazed window” as used herein encompasses other glazed apertures such as glazed doors, glazed internal partitions (such as in offices) and other like locations
  • a roller blind comprises a web of fabric which in the shading configuration lies approximately parallel to the window and in the exposing condition is wound around a rigid roller or the like conventionally arranged near the top of the window.
  • Vertical blinds include a plurality of panels or slats which hang vertically from a head rail conventionally mounted near the top of the window. Mechanisms are provided, primarily in the head rail, by which the panels can be rotated about their longitudinal axes and by which the panels can be moved along the head rail laterally with respect to the window, by both of which means the degree of shading of the window is adjusted.
  • Venetian blinds which are also known as slatted blinds, are also well known and conventionally comprise an upper supporting structure in the form of a head rail from which depend two or more spaced apart ladders.
  • the ladders comprise a pair of longitudinal cords or threads aligned in use substantially parallel to the window with a plurality of lateral threads inter-connecting the longitudinal cords at regular intervals.
  • the lateral threads support respective laths or slats which form the shading part of the blind.
  • the slats may rest on the lateral threads without any attachment, or some or all of the slats may be directly connected to respective lateral threads.
  • Mechanisms are conventionally provided by which the blind can be raised and lowered so that it can adopt configurations in which the window is wholly shaded, partially shaded or unshaded.
  • Such mechanisms will normally include at least one lift cord which may pass through holes defined in the slats of the blind or may, for example, run behind the slats.
  • mechanisms are provided by which the slats can be tilted or inclined out of a nominally horizontal alignment into alignments tending towards the vertical, thereby to vary the degree of shading provided by the blind. Tilting is conventionally effected by adjusting the configurations of the longitudinal cords of the ladders.
  • Pleated blinds are also well known and comprise a supporting structure in the form of a master rail.
  • the master rail is often located in use at an upper portion of the glazed aperture, but this is not necessarily so.
  • the master rail can, in some circumstances be mounted at the side or lower part of the glazed aperture.
  • a web of fabric which is used to shade the window is supported by the master rail.
  • the fabric is constructed so that it includes a number of concertina-like folds ("pleats"), whereby the web can be adjusted from a compact configuration in which the window is exposed to an extended configuration where the window is shaded.
  • Support cords pass through or behind the folded web and normally are attached to a moveable bar which is raised and lowered as the web is adjusted between its configurations.
  • each type of blind normally includes a substantially rigid element, member or assembly such as a master rail or head rail from which the shading portion of the blind is, directly or indirectly, supported.
  • a substantially rigid element, member or assembly such as a master rail or head rail from which the shading portion of the blind is, directly or indirectly, supported.
  • the roller or tube about which the blind is operationally wound, together with mounting brackets at either end of the roller forms such a substantially rigid assembly.
  • the head rail or master rail forms such a substantially rigid element.
  • the element, member or assembly is hereinafter referred to as the "head assembly" but this term should be understood, unless the context requires otherwise, to include the possibility that the rail could be at the lower side of a window, with the blind panel(s) being raised in order to deploy the blind in its shading position.
  • the element, member or assembly is at the upper side of the window, with the blind panels being deployed, usually at least to some extent, with the aid of gravity.
  • the blind conventionally is mounted at a window or other location of use by securing the head assembly directly or indirectly to the window frame or surrounding portion of wall, lintel etc by use of screws or the like. Although this will normally provide a secure attachment, it is often time consuming and inconvenient.
  • it can be disadvantageous, for example in that holes or marks are left in the frame when the blind is removed. This is especially so where the blind is mounted to a plastic (typically uPVC) frame where the holes cannot be readily filled or otherwise repaired.
  • the frame is significant in reducing the effective glazed area of the window. For example, for a window with a nominal 1 m x 1 m glazed area, the frame reduces the visible glazed area to 0.95m x 0.95m.
  • a system for mounting a blind including a head assembly at a glazed aperture, the glazed aperture comprising a frame, a glazing pane retained in the frame and a flexible or resilient bead disposed between the glazing pane and the frame which bead bears against the glazing pane;
  • the system comprising: first and second mounting components each including a base portion having a base surface configured to rest in use against the glazing pane, a post portion configured to extend in use approximately orthogonally with respect to the plane of the glazing pane; and a mounting bracket portion having at least one laterally extending planar finger configured to slide in use between the bead and the glazing pane; and first and second connecting components configured operatively to attach the blind head assembly to the respective post formations.
  • a blind assembly mounted at a glazed aperture, the glazed aperture comprising a frame, a glazing pane retained in the frame and a flexible or resilient bead disposed between the glazing pane and the frame which bead bears against the glazing pane;
  • the blind assembly comprising: a blind head assembly from which a shade portion of the blind depends; first and second mounting components each including: a base portion having a base surface resting against the glazing pane, a post portion extending approximately orthogonally with respect to the plane of the glazing pane; and a mounting bracket portion having at least one laterally extending planar finger disposed between the bead and the glazing pane; and first and second connecting components by means of which the blind head assembly is attached to the respective post formations.
  • a method of mounting a blind including a head assembly at a glazed aperture, the glazed aperture comprising a frame, a glazing pane retained in the frame and a flexible or resilient bead disposed between the glazing pane and the frame which bead bears against the glazing pane; the method including the steps of: providing first and second mounting formations each including a base portion having a base surface and a post portion configured to extend in use approximately orthogonally with respect to the plane of the glazing pane; providing first and second mounting brackets each comprising a first portion including attachment means and a second portion having at least one laterally extending finger; and providing first and second connecting components attaching the respective mounting formations to the mounting brackets, placing the base surface of the base portions against the glazing pane and sliding the fingers between the glazing pane and the bead, attaching the connecting components to respective side parts of the head assembly and mounting the respective connecting components on the post portions of the mounting formations.
  • the blind is supported by tensioned support cords that extend on either side of the blind panel and stretch between the head rail and a bottom rail or other fixed support.
  • a slave bar is generally provided at the bottom of the blind panel or panels and it slides on the cords, generally through a friction arrangement that holds the slave bar in any position it is left in.
  • the blind panel or panels are supported between the slave bar and the head rail or master rail.
  • Adjustment cords may be provided to raise or lower the slave bar, although in this event the friction arrangement may not be required, the blind instead employing gravity to pull the slave bar and blind panel(s) into a lower, shaded position of the blind, and the adjustment cords being used to raise the blind and hold the blind in an intermediate, or raised, unshading, position.
  • the support cords may cross through the lower slave bar in a figure-8 arrangement in which the lower bar forms the middle cross of the 8, the top cross is inside the head rail and the bottom either does not exist or is in a fixed, lower rail of the blind.
  • the cross over enables the lower bar to be positioned at any vertical position with the blind fully closed, fully open or any intermediate position.
  • the friction arrangement is provided in the lower bar to restrict movement of the cords through the bar so that the lower bar does not fall under its own weight. Indeed, for this reason the tension of the cords is often important, along with the equality of the tension on either side of the blind. This equally applies where multiple cords are employed.
  • a spring is generally provided to apply the tension to the cord, in fact, the cord may have sufficient resilience on its own. Alternatively, other tensioning arrangements may be provided.
  • the spring when present, need not necessarily be located in the head rail, but could be in the slave bar, for example.
  • a preferred arrangement also ensures that support cord tension can be preset in the factory.
  • a system for mounting a blind at a glazed aperture including a head assembly and a slave bar between which extends one or more blind panels, the glazed aperture comprising a frame, a glazing pane retained in the frame and a flexible or resilient bead disposed between the glazing pane and the frame which bead bears against the glazing pane; the system comprising: mounting means for the head assembly, to mount the head assembly at or near the top of the glazed aperture; first and second mounting brackets, each comprising a first portion having at least a first laterally extending planar finger configured to slide in use between the bead and the glazing pane, and a second portion defining an attachment formation which extends substantially orthogonally with respect to the plane of the glazing pane, and a support cord adapted for connection to and extending from one attachment formation through one end of said slave bar into the head assembly and down through the other end of said slave bar to said other attachment formation.
  • a tension mechanism tensions the cord.
  • said tension mechanism is in said head assembly.
  • said mounting bracket second portions each include a second co-planar finger arranged to extend orthogonally with respect to the first finger and configured to slide in use between the bead and the glazing pane at adjacent sides of the frame.
  • the blind assembly further comprises a support clip mounted on the attachment formation, said cord being connected to said support clip.
  • said support clip is a sliding fit on said attachment formation in a direction orthogonal to said pane and includes means to secure the support clip on said attachment formation.
  • said securing means comprises a tab on one of the attachment formation and the support clip and a corresponding detent in the other of the attachment formation and the support clip, said tab snapping into said detent when the support clip is fully engaged with the attachment formation.
  • any suitable securing means will be acceptable, even a screw fixing, for example, since the screw will in this event only screw into the support clip, after transitioning through the attachment formation.
  • said full engagement includes seating of a flange of the support clip against the pane and masking said mounting bracket.
  • said cord is connected to said support clip at a location spaced at a distance from said pane so that tension in the cord causes a moment on said bracket resisted by said bead.
  • first and second longitudinally extensive side members are configured for mounting at the sides of the glazed window to extend from proximate the head assembly to proximate the mounting brackets.
  • lower end portions of the side members engage the respective mounting brackets, such as by one of the mounting bracket or the side member including a slot into which the other of the mounting bracket or the side member is received.
  • the lower parts of the side members and the mounting brackets respectively include operatively co-operating engagement formations.
  • the tension in said cord when the system is installed in the glazed aperture is set remotely, prior to installation of the blind, wherein the length of said cord is determined by the length of said side members which themselves determine the separation of said attachment formation from said head assembly.
  • an adjustable jig is provided whose dimensions are adjustable to correspond with said glazed aperture, whereby the blind may be fitted and the tension in said cord set prior to installation of the blind in said glazed aperture.
  • said cord is relatively inextensible and said tension mechanism comprises a spring, the tension in the spring being determined by the length of the cord.
  • said tension mechanism is adjustable and is employed to set the tension in the cord.
  • Said adjustment mechanism may comprise an extender, whereby the path length of the cord is adjustable to alter the tension of the cord.
  • the extender may be in the head assembly. Alternatively, it, and the spring, could be located in the slave bar.
  • an intermediate support cord extends between end support cords disposed at each side of the blind, said intermediate cord extending through said slave bar and being connected to the attachment formation to which one of said end support cords is connected.
  • the system preferably includes at least some of the features of the earlier aspects of this invention.
  • said system further comprises first and second mounting components to mount said head assembly in said glazed aperture, each component including a mounting bracket portion having at least one laterally extending planar finger configured to slide in use between the bead and the glazing pane; and first and second connecting components configured operatively to attach the blind head assembly to the respective mounting components.
  • said mounting components further comprise a base portion having a base surface configured to rest in use against the glazing pane and a post portion configured to extend in use approximately orthogonally with respect to the plane of the glazing pane, wherein said base and post portions are retained by said mounting bracket portion and said connecting components operatively attach the blind head assembly to the respective post portions of the mounting components.
  • a blind assembly mounted at a glazed aperture, the glazed aperture comprising a frame, a glazing pane retained in the frame and a flexible or resilient bead disposed between the glazing pane and the frame which bead bears against the glazing pane;
  • the blind assembly comprising: a blind head assembly from which a shade portion of the blind depends and including mounting means to mount the head assembly at the glazed aperture; first and second mounting brackets, each comprising a first portion having at least a first laterally extending planar finger configured to slide in use between the bead and the glazing pane, and a second portion configured for mounting an additional component, said second portion defining an attachment formation which extends substantially orthogonally with respect to the plane of the glazing pane; and a support cord adapted for connection to and extending from one attachment formation through one end of said slave bar into the head assembly, through a tension mechanism, and down through the other end of said slave bar to said other attachment formation.
  • said mounting bracket second portions each include a second co-planar finger arranged to extend orthogonally with respect to the first finger and configured to slide in use between the bead and the glazing pane at adjacent sides of the frame.
  • the blind assembly further comprises a support clip mounted on the attachment formation, said cord being connected to said support clip.
  • said support clip is a sliding fit on said attachment formation in a direction orthogonal to said pane and includes means to secure the support clip on said attachment formation.
  • said securing means comprises a tab on the attachment formation and a detent in the support clip, said tab snapping into said detent when the support clip is fully engaged with the attachment formation.
  • said full engagement includes seating of a flange of the support clip against the pane and masking said mounting bracket.
  • first and second longitudinally extensive side members are configured to be mounted at the sides of the glazed window to extend from proximate the head assembly to proximate the mounting brackets;
  • lower end portions of the side members engage the respective mounting brackets, such as by one of the mounting bracket or the side member including a slot into which the other of the mounting bracket or the side member is received.
  • the lower parts of the side members and the mounting brackets respectively include operatively co-operating engagement formations.
  • the assembly further comprises: first and second mounting components each including a mounting bracket portion having at least one laterally extending planar finger disposed between the bead and the glazing pane; first and second connecting components by means of which the blind head assembly is attached to the respective mounting components.
  • said first and second mounting components each further comprise a base portion having a base surface resting against the glazing pane, and a post portion extending approximately orthogonally with respect to the plane of the glazing pane and; wherein said base and post portions are retained by said mounting bracket portion and said connecting components operatively attach the blind head assembly to the respective post portions of the mounting components.
  • the mounting bracket portions are arranged at respective upper corners of the frame of the glazed aperture.
  • the mounting bracket portions each include first and second co-planar fingers extending orthogonally and arranged between the bead and the glazing pane at adjacent sides of the frame.
  • the respective mounting components are unitary.
  • first and second mounting components are non-unitary and respectively comprise: first and second mounting formations each including a said base portion having a base surface resting against the glazing pane, and a said post portion extending substantially orthogonally with respect to the plane of the glazing pane; and first and second head mounting brackets, respectively constituting the mounting bracket portions, and each comprising a first portion including attachment means by which the head mounting bracket and post portion of the mounting formation are attached and a second portion having said at least one laterally extending planar finger disposed between the bead and the glazing pane.
  • the attachment means comprise an aperture defined in the first portion of the mounting bracket through which aperture a respective post portion passes.
  • the respective post portions, apertures of the first portions and the base portions of the mounting formations are so sized and/or configured that the base portion cannot pass through the aperture.
  • the respective connecting components are operatively slidable along the post portions. In this way, the position of the blind head assembly with respect to the frame is adjustable.
  • the connecting components each comprise a socket within which the post portion is slidably engaged.
  • the respective post portions of the mounting formations may define sockets into which a protruding formation of the respective connecting component is slidably received.
  • the blind assembly further comprises fixing means which co-operate with the respective connecting component and post portion to prevent or inhibit removal of the connecting component from the post portion.
  • Fixing means may include a latching arrangement which resists removal of the connecting component, or permanent or semipermanent fixing means such as a fixing screw, bolt or pin.
  • the blind assembly further comprises at least first and second spacing elements of predetermined depth arranged respectively between the mounting bracket portion or mounting bracket and the connecting component.
  • the retaining means comprise first and second clips each including an engagement portion which engages the side member and a finger portion which slides between the bead and glazing pane.
  • lower end portions of the side members engage the respective first and second mounting brackets, such as by one of the mounting bracket or the side member including a slot into which the other of the mounting bracket or the side member is received.
  • the lower parts of the side members and the first and second mounting brackets respectively include operatively co-operating engagement formations.
  • the tension in the cords is transmitted directly to the attachment mechanism of the blind at each corner and, while these directionally appear to tend towards pulling the attachment mechanisms towards one another and therefore out of engagement with the top and bottom beads of the glazing, in fact this direction is at a distance from the plane of the pane so that on each post and attachment formation, the tension in the cords applies a moment at the base against the pane, the reaction to which is the planar fingers pressing outwardly against the bead, whereby the grip of the bead resisting pullout is increased.
  • the effect therefore of the tension arrangement is not just to provide a rigid guide in the form of taut cords for the pleats or slats, but to pre- tension all the attachment mechanism of the blind to the glazed pane, all without the necessity to use screw fixings.
  • the present invention provides a method of mounting a blind at a glazed aperture, the blind comprising a head assembly, a blind panel attached to the head assembly and support cords to support the sides of the blind panel, and the glazed aperture comprising a frame, a glazing pane retained in the frame and a flexible or resilient bead disposed between the glazing pane and the frame which bead bears against the glazing pane; the method comprising: mounting the head assembly to the glazed aperture; providing a bottom anchor for said support cords, said anchor comprising first and second mounting brackets, each comprising a first portion having at least a first laterally extending planar finger configured to slide in use between the bead and the glazing pane, and a second portion defining an attachment formation which extends substantially orthogonally with respect to the plane of the glazing pane, and connection means on said attachment formation for connection of said support cord for the blind at a distance from the glazing pane; sliding the fingers of said first and second mounting brackets between the glazing pane and the bead at bottom
  • the present invention provides a bottom anchor for a blind to be mounted at a glazed aperture, the blind including a head assembly from which extends one or more blind panels, and the glazed aperture comprising a frame, a glazing pane retained in the frame and a flexible or resilient bead disposed between the glazing pane and the frame which bead bears against the glazing pane, said anchor comprising first and second mounting brackets, each comprising a first portion having at least a first laterally extending planar finger configured to slide in use between the bead and the glazing pane, and a second portion defining an attachment formation which extends substantially orthogonally with respect to the plane of the glazing pane; and connection means on said attachment formation for connection of a support cord for the blind at a distance from the glazing pane.
  • said second portion is configured for mounting an additional component comprising said attachment formation
  • Said attachment formation may be a snap fit on said second portion.
  • Figure 1 is a perspective view of a blind head rail and bottom mounted at a window
  • Figure 2 is an exploded view of the system of Figure 1 ;
  • Figure 3 shows a portion of the head rail mounting of Figures 1 and 2 on an enlarged scale
  • Figure 4 is a cross section through a combined mounting bracket, mounting formation and connecting component according to a variation of the invention.
  • Figure 5 is an exploded perspective view of the mounting bracket, mounting formation and connecting component of Figure 4, together with a support clip;
  • Figure 6 is an exploded perspective view of the mounting bracket, mounting formation, support clip and connecting component of Figure 5, viewed from the other side;
  • Figures 7 a to e show the mounting sequence of top and bottom brackets, and side members of the system shown in Figures 1 through 6;
  • Figures 8 a and b show use of the bottom brackets in accordance with the present invention, continuing the sequence in Figure 7;
  • FIGS 9 a to f show the sequence of operations in tensioning support cords, in accordance with the present invention.
  • Figure 10 is a schematic diagram of a system in accordance with the present invention.
  • the blind is mounted at a window frame 10.
  • the frame 10 conventionally comprises an upper horizontal frame member 12, a lower horizontal frame member 14 and vertical side frame members 16, 18 which are connected together to form the frame 10, thereby defining upper corners 42, 44 and lower corners 43, 45.
  • the frame defines an aperture 20 which is closed by a pane of glazing 20a, which may be glass or other transparent or translucent material such as a sheet of light transmitting plastic.
  • a typical frame member 12, 14, 16, 18, as illustrated may comprise a front face 12a, 14a, 16a, 18a which is normally arranged substantially parallel to the plane of the glazing pane 20a and a return face (14b, 16b) which is normally arranged approximately perpendicular to the glazing pane 20 and to the front face (12a, 14a, 16a, 18a).
  • the frame members 12, 14, 16, 18 may include a more complex series of faces which may be plane or curved.
  • the glazing pane 20a is retained in the frame 10 by use of a bead 22 of flexible or resilient material, such as of a rubber compound or rubber-like polymeric material.
  • the bead 22 is arranged between the frame 10 and the glazing 20a.
  • the frame members 12, 14, 16, 18 are typically made from a plastic (normally uPVC) but other materials are also possible such as metal or wood, provided only that the glazing pane 20a is retained by a bead and that there is space within the frame members to accommodate mounting means as discussed below.
  • Venetian or pleated blinds conventionally include a head rail or master rail 24.
  • Other types of blind will also conventionally include a head rail, master rail or other substantially rigid element member or assembly by which the shading part of the blind is supported, for example, from which the shading part is suspended.
  • the blind itself is not shown in the drawings for reasons of clarity.
  • the head rail or master rail 24 typically has a decorative front face 24a which is visible to a user.
  • Operating components of the blind such as cords, cord guides and a tilt mechanism are accommodated within the blind head rail or master rail 24. Such components are ancillary to the present invention.
  • Venetian and pleated blinds commonly also comprise a second, bottom or slave rail 26 which, depending on the particular design, may be fixedly located in the window aperture opposite the head rail or master rail 24, for example, against the lower horizontal frame member 14, or may be adapted to be moved with the shading part of the blind (e.g. raised and lowered).
  • a second, bottom or slave rail 26 which, depending on the particular design, may be fixedly located in the window aperture opposite the head rail or master rail 24, for example, against the lower horizontal frame member 14, or may be adapted to be moved with the shading part of the blind (e.g. raised and lowered).
  • the system allows a blind to be attached to a window frame without the use of fixing means which require a hole in, or otherwise damage, the frame. For example, screw fixings which penetrate the frame are avoided.
  • first and second mounting components which in the embodiment illustrated are non-unitary and consist respectively of mounting bracket portions 28, 30 and mounting formations 38, 40.
  • the mounting bracket portions 28, 30 are preferably, but not essentially, made from metal.
  • the mounting bracket portions can be made from a suitably strong plastic which is also suitable for moulding to form the bracket.
  • the mounting bracket portions 28, 30 are located at the upper left and right (as illustrated) corners 42, 44 of the frame 10, that is, respectively where the frame members 12 and 16 and the frame members 12 and 18 join.
  • the mounting bracket portions 28, 30 each comprise a first portion 32 which defines attachment means (see below) and a second portion 34 which includes at least one laterally projecting finger and preferably two laterally projecting fingers 36.
  • the finger may, for example, be a generally "L" shaped web, with each arm of the "L” being connected along its length to the first portion 32.
  • the mounting bracket portion 28, 30 includes two fingers 36
  • the fingers 36 are in the form of planar webs which extend from the first portion 32.
  • the fingers 36 of a given mounting bracket 28, 30 are substantially co-planar and rest in their position of use against (or at least closely proximate) the surface of the glazing pane 20a.
  • the finger or fingers of the mounting bracket portion is/are arranged to slide between the glazing pane 20a and the bead 22, to retain the bracket in position.
  • the fingers 36 of bracket portion 28 are directed at right angles (i.e.
  • bracket portion 28 perpendicularly or orthogonally so that when the bracket portion 28 is arranged in its corner 42 one of the fingers slides between the bead 22 and glazing pane 20a into the upper frame member 12 and the other of the fingers 36 slides between the bead 22 and the glazing pane 20a into side member 16.
  • the fingers of bracket 30 are directed at right angles so that when the bracket 30 is arranged in its corner 44 one of the fingers slides between the bead 22 and the glazing pane 20a into the upper frame member 12 and the other of the fingers slides between the bead 22 and the glazing pane 20a into the side member 18.
  • the bracket portions 28, 30 are mirror images of one another.
  • the system of the invention further includes said first and second mounting formations 38, 40 which are arranged at respective corners 42, 44 of the frame 10 and which cooperate with respective mounting bracket portions 28, 30 for supporting the blind in use.
  • Each mounting formation 38, 40 comprises a base portion 46 and a post portion 48.
  • the base portion 46 has a substantially flat rear surface (or coplanar surface portions) 46a which rest in use in contact with the surface of the glazing pane 20a.
  • the post portion 48 depends from the first portion and extends approximately orthogonally (i.e. perpendicularly) with respect to the plane of the glazing pane 20a.
  • the mounting bracket portions 28, 30 each have a first portion 32 defining attachment means.
  • the attachment means co-operate with the respective mounting formation so that the mounting formation 38, 40 is constrained from movement with respect to the mounting bracket portion 28, 30 in directions substantially parallel to the plane of the glazing pane 20a and also in directions substantially perpendicular to the plane of the glazing pane 20a.
  • the mounting bracket portion 28, 30 and the mounting formation 38, 40 are attached to or retained on one another.
  • the first portion 32 of the mounting bracket portion 28, 30 comprises a web 32a defining an aperture 50.
  • the web 32a is preferably substantially planar, the plane of web 32a, when the bracket portion 28, 30 is in its position of use, being approximately parallel to that of finger(s) 36.
  • the post portion 48 is, in use, seated in the aperture 50 so that the base portion 46 lies between the web 32a and the glazing pane 20a.
  • Each mounting bracket 28, 30 has depending walls 52 by which the first portion 32 is connected to the second portion 34.
  • the material from which the bracket portion 28, 30 is constructed can accommodate a small degree of deformation between the fingers 36 and the web 32a.
  • the web 32a is spaced apart from the fingers 36 by a distance nominally equal to, and preferably slightly less than, the depth "d" of the base portion 46 of the mounting formation 38, 40 (see Fig 3).
  • the web 32a and the walls 52 are sized to accommodate the base portion 46 so that, when the post portion 48 is arranged in the aperture 50, the base portion 46 lies flat against the glazing pane 20a.
  • the surface 46a of the base portion 46 is proud of the under-surface 36' of the fingers 36 (that is, depth "d" is greater than the depth of walls 52) which ensures that the glazing pane 20a is contacted by the base portion 46 (which is preferably made of a plastics or other polymeric material) in preference to the (metal) bracket portion 28, 30.
  • This construction is advantageous in that forces due to the inherent weight of the blind and also operation forces of the blind (which principally occur when raising or lowering the blind) are not primarily transferred via to the metal brackets and thence to the glazing. Rather, such forces are transferred through the base portion 46. As noted above, in the prior art, transfer of such forces through metal brackets potentially transfers stresses to the glazing very locally through the edges of the metal brackets.
  • the mounting bracket portion 28, 30 and the mounting formation 38, 40 may be formed as a unitary component.
  • the unitary mounting component includes a base portion having a base surface which contacts the glazing pane 20a in use, a mounting bracket portion including at least one laterally projecting finger (similar to fingers 36) and a post portion similar to post potion 48.
  • the post portion 48 may advantageously include one or more outwardly projecting latching formations 54 which act to engage edge parts of the web 32a which define the aperture 50, thereby to retain the mounting bracket 30, 32 on the post portion 48.
  • the post portion 48 comprises first and second parallel arms 56, 58 separated by a narrow channel 60.
  • the post portion 48 is unitary and may include a groove extending along the length of the post portion 48.
  • the apparatus or system shown further comprises first and second connecting components 62, 64 which serve to attach the head assembly (head rail 24 in the illustrated embodiments) to the post portions 48 and thus to the frame 10 via the mounting bracket portions 28, 30.
  • the connecting components 62, 64 are located at or near the left and right end portions of the head rail 24, on the rear side of the head rail 24 where they are not normally visible to a user.
  • the connecting components 62, 64 may be formed integrally with the head rail 24, or, more preferably, are separate components which are securable to the head rail 24.
  • the head rail 24 and the connecting components 62, 64 may have co-operating engagement formations which allow the connecting components 62, 64 to "snap-fit" to the head rail 24, or such formations may allow the connecting components to slide into engagement with the head rail 24 from the side edges thereof.
  • Each connecting component 62, 64 includes means for attaching the connecting component 62, 64 to a respective post formation 48.
  • such means comprise a socket 66, the internal shape and dimensions of which are sized to conform with the external shape and dimensions of the post portion 48.
  • the socket 66 operatively slides into engagement with the post portion 48.
  • the socket may include a slot or a channel which, when the connecting component 62, 64 is in its position of use, aligns with the channel 60 of the post portion 48.
  • the channel of the connecting component 62, 64 and the channel 60 of the post portion 48 are used for securing the connecting component 62, 64 on the respective post portion 48 in its position of use.
  • the two may be secured together by inserting a screw or like fixing means into the respective channels.
  • the channels and screw are sized so that the width of the channels is somewhat less than the width of the thread of the screw, so that the thread engages the sides of the channels and thereby secures the post portion 48 and the socket 66 together.
  • the channel of the socket 66 includes an outer wider portion sized to accommodate the head of the screw and an inner, narrower, portion sized to conform with the thread portion of the screw.
  • the post portion may include a captive nut which is free to slide along the length of at least part of the post portion 48 and which receives a corresponding bolt via a channel in the socket 66.
  • the present invention is not confined to a post and socket arrangement where a post portion 48 of a mounting formation 38, 40 is inserted into a socket 66 of a connecting component 62, 64.
  • the post portion 48 may be formed with one or more walls which define an internal hollow void which acts as a socket, the internal shape and dimensions of which are sized to conform with the external shape and dimensions of a projecting member (plug) formed on the connecting component 62, 64, so that the plug is slidably received in the socket.
  • a significant advantage of the post portion 48 and socket 66 arrangement is that the connecting components 62, 64, and hence the head rail 24 are almost infinitely adjustable with respect to the length of the post.
  • the head rail 24 can be set at any required depth on the post portions 48 to accommodate different depths of the window frame 10, that is, the distance from the front face 12a, 14a, 16a, 18a to the surface of the glazing pane 20a. This ensures that no unintended gap is left between the head rail 24 and the frame 10.
  • the mounting formations 38, 40 are configured so that the post portion 48 is inclined slightly upwardly, typically by not more than about 10°, preferably not more than about 5° and more preferably not more than about 2° to 3° (with respect to a line perpendicular to the plane of the glazing pane 20a).
  • This feature is advantageous in preventing the blind, when mounted, from tilting forwards away from the window.
  • the base portion is provided with a formation or lip 46b which bears against the web 32 and ensures that the base portion 46 and the web 32 are not in exactly parallel alignment.
  • Post portion 48 comprises an arm 94 which is preferably resiliency deformable and which terminates in a raised formation 96 with inclined surfaces 96a, 96b.
  • Socket 66 includes a lip 98 which is conveniently provided near the mouth 100 of the socket 66.
  • the arm 94, formation 96 and lip 98 are so configured that on insertion of the post portion 48 into socket 66, or removal of the post portion 48 from the socket 66, lip 98 interferes with the passage of arm 94.
  • the arm 94 may be deflected by the lip 98.
  • the arm 94, the lip 98, and the internal dimensions of the socket may be so configured that it is necessary for removal of the connecting component 62, 64 to rotate the connecting component relative to the post portion 48 as suggested by arrow R such that the inclined surfaces 96a, 96b and the lip 98 do not interfere with one another. It follows that socket 66 cannot inadvertently be removed from post portion 48 without overcoming the resistance to deflection of arm 94.
  • the system is desirably further provided with side members 68 which are arranged in use to lie in confronting relation with frame side members 16, 18.
  • the side members 68 extend from an upper part of the aperture 20 close to the respective upper corners 42, 44 to a lower part of the aperture close to respective lower corners 43, 45.
  • Preferably upper parts 68a of the side members 68 are in contact with a respective mounting bracket 28, 30 or mounting formation 38, 40.
  • the side members 68 and respective mounting bracket portions 28, 30 include co-operating formations by which the side members 68 and mounting bracket 28, 30 are joined, attached or engaged.
  • the mounting bracket portion 28, 30 may conveniently include a slot 70 which receives an upper end portion of face 68b of the side member 68.
  • the side member 68 may be selected from a number of different shapes and configurations which are adapted for different sizes and profiles (e.g. depths) of the frame 10. Three different side members 68 are shown in Figures 1 and 2 by way illustration of different possible shapes and configurations.
  • attachment clips 72 are provided which include a head portion 74 configured to engage the side member 68 and a flat finger portion 76 configured to slide between the glazing pane 20a and the bead 22, thereby to retain the side member in its position of use.
  • Third and fourth mounting brackets 78, 80 are also preferably provided configured to sit in respective lower corners 43, 45 of the frame 10.
  • each of the third and fourth brackets 78, 80 includes a planar finger portion 82 which is arranged to slide in use between the glazing 20a and the bead 22 in the region of the corners 43, 45.
  • the mounting brackets 78, 80 also include an upstanding attachment or mounting formation 84 which extends away from the plane of the glazing 20a.
  • the attachment formation 84 comprises a web or finger extending orthogonally with respect to the glazing 20a.
  • each attachment formation 84 carries a cap or support clip 86 which is typically formed from a plastics material.
  • the distance between the two spacing formations 86 substantially corresponds to the length of the foot rail 26.
  • Side members 68 may include at their lower ends a slot or cut-out in which the attachment formation 84 is accommodated.
  • the third and fourth mounting brackets 78, 80 may each include a slot or cut out in which a lower part of a side member 68 is accommodated.
  • an important advantage of the system illustrated is the facility to adjust the mounting of the head rail by longitudinal movement of the socket 66 on the post portion 48, thereby to accommodate different constructions of the frame 10.
  • one or more spacing elements 88 are preferably provided which are configured to sit between the head rail 24 (more specifically, the respective connecting component 62, 64) and the frame 10. This allows for the case where the combined length ⁇ of the socket 66 and the depth d of the base portion 46 is greater than the depth of the frame 10 (that is, the distance from the front face 12a, 14a, 16a, 18a to the surface of the glazing), or, for the case where the length of the post portion 48 is greater than the depth of the frame 10.
  • each spacing element 88 can be provided each having a different depth w.
  • a spacing element of appropriate depth w it is thus possible to ensure that no gap, or substantially no gap, is present between the internal or rear face of the head rail 24 (or, more specifically, the rear face of the connecting component 62, 64) and the front face of the frame 10.
  • the head rail 24 may be constructed to have a lower face which, by use of spacing elements 88 of appropriate depth, extends to meet the glazing pane 20a without any significant gap.
  • Each spacing element 88 includes edge wall portions 88a, 88b which define a recess or cut-out which is sized and shaped to conform to the external shape of the socket 66.
  • the connecting components 62, 64 may desirably include cord guiding formations 90 to direct the cords along a desired and predetermined path into the head rail.
  • End caps 92 may be provided to close the ends of the head rail 24 and provide a more aesthetically pleasing finish.
  • the post portions 48 of the first and second mounting formations 38, 40 are inserted into the respective apertures 50 of the mounting bracket portions 28, 30.
  • the post portions 48 are inserted to an extent sufficient to cause the latching formations 54 to engage the edges of the web 32a which define aperture 50.
  • the first and second mounting bracket portions are located at the respective upper corners 42, 44 of the frame 10, so that fingers 36 extend between the bead 22 and the glazing 20a into the respective frame members 12, 16 and 12, 18.
  • Side members 68 are then fixed in place using clips 72 and with upper portions thereof engaged in slot 70 of respective mounting bracket portions 28, 30.
  • third and fourth mounting brackets 78, 80 are engaged with the side members (via, for example, the slot or cut-outs provided) and the finger portions thereof are inserted into the respective corners 43, 45 of the frame between the glazing pane 20a and the bead 22.
  • Support clips 86 are mounted on the mounting formations 84 of the third and fourth mounting brackets 78, 80.
  • suitably sized spacing elements 88 are mounted around the post portions 48 of the mounting formations 38, 40.
  • Connecting components 62, 64 are mounted to head rail 24 and sockets 66 are mounted on post portions 48 and if necessary secured in place with fixing means provided.
  • the head rail 24 carries all the components of the blind, including the shade portion, tilt mechanism and so on.
  • the head assembly (head rail 24 in the illustrated embodiments), being substantially rigid, serves to ensure that the mounting bracket portions 28, 30 cannot move laterally (parallel to upper frame member 12).
  • Side members 68 prevent movement of the mounting bracket portions 28, 30 parallel to frame side members 16, 18.
  • a blind 100 may comprise a pleated panel 102 provided with holes 104 through which a support cord 106 is threaded whereby the blind panel 102 is supported. At its bottom end, the panel 102 is connected to a slave bar 108, and if the slave bar is at an intermediate position in the window frame, the bottom pleats 102 will be concertinaed into a stack 102a of pleats. The cord 106 serves to keep the pleats tidy and in the same plane.
  • a similar arrangement can be employed with other types of blind, particularly when a blind is not to be vertical and gravity cannot be employed to retain the position of the blind. This occurs particularly in roof windows.
  • the cord 106 must be constrained and this is achieved by connecting the cord in head rail 124 of the blind 100 and securing its lower end at the case of the blind 100.
  • this has been achieved by the use of screw fixings, but the present invention avoids that requirement by employing first and second mounting brackets 178,180, which of course may be the same as the third and fourth mounting brackets 78,80 described above with reference to Figure 2.
  • the cord 106 (on both sides of the blind of course, as shown at 106a,b) is retained in position and tensioned by tensioning means 110.
  • tensioning means 110 may take any convenient form, but here is illustrated as a spring to the ends of which one each of cord 106a,b is connected.
  • the spring 110 is normally located in the head rail 124. It will be noted that the cord 106 crosses from one side to the other in slave bar 108. The only purpose of this is to introduce a serpentine path so that the bar 108 does not simply fall under its own weight to a lowermost position but will adopt which ever position it is placed in by the user, friction of the cord at the various corners 1 12 it negotiates in the slave bar 108.
  • FIG. 10 Also shown in Figure 10 is the possibility of a further pair of intermediate support cords 106' disposed between what are, in the event of such intermediate support cords, end support cords 106a,b.
  • a separate tension spring 110' is provided and like the cord 106, the intermediate cord 106' describes a figure-8 arrangement in the slave bar 108 but, instead of exiting the slave bar aligned with the cords above, they exit beside the cords 106a,b so that they can be tied off on the same attachment formations 178,180.
  • Further cords could be provided, and not necessarily in pairs as shown.
  • FIG. 7a to e the blind mounting system described above with reference to Figures 1 to 5 is illustrated in different stages of assembly.
  • bracket portion 28 has been inserted behind bead 22, captivating post formation 48.
  • Side member 68 is being offered up to the bracket portion 28 to engage in slot 70 (see Figure 7b).
  • Figure 7c lower end 68c of side member 68 engages over mounting formation 84 of first mounting bracket 178.
  • the length of the side member 68 is determined by the depth D of the window frame, as this determines the separation of the brackets 28,84.
  • Lower end 68c of the side member 68 has a slot 70a to engage over mounting formation 84.
  • support clip (or cap) 86 is then clipped over mounting formation 84, being retained in place, for example, by a punched tab 84a and corresponding catch (not shown) inside the cap 86.
  • Cap 86 is provided with an eye 86a through cord 106 is threaded and knotted and the action of clipping the second cap 86 over the second mounting formation 84 has the effect of tensioning the cord 106.
  • Clipping cap 86 onto formation 84 also has the function of locking the side member 68 in place. The tension in the cord 106 tends to lift the mounting formation 84 and would tend to disengage bracket 178 from the bead 22.
  • the tension is at a distance from the pane 20a, and consequently results rather in a twist of the finger portion 82 (not visible in Figures 7 or 8), rather than any extraction in a direction parallel the plane of the pane 20a, and, in any event, the side member 68 directly opposes any such force. Instead, the tension in the cord simply tightens the overall structure of the components of the blind 100.
  • the length of the cord 106 determines the appropriate tension of it. This tension is something that can be set by the installer. However, getting the tension right is a skill that is better not left in the hands of the installer, who possibly may not understand the benefit of the appropriate tension. If the size of the window frame in which the blind is to be fitted then a jig can be constructed whose dimensions are set the same as the frame.
  • FIG. 9a to f the process of adjusting the cord length of achieve the appropriate tension is illustrated.
  • the blind 100 is fully assembled in the jig (in fact, in the photographs forming Figure 9, a window frame 10 is employed).
  • the cord 106a is fixed by threading through its eye 86a and knotting on the far side thereof.
  • the other end of the cord 106b is threaded through the eye 86a of the cap 86 on the second mounting bracket 180, and pulled until it reaches the appropriate tension.
  • the present invention is not limited thereto. Indeed, even with the same blind, some people may not be content with the security of the mounting for the head rail and choose to employ screw fixings. This does not affect the benefit of the present invention, in cases where tensioned support cords are provided and screw fixings at more visible locations than the top of the window frames are desirably avoided.
  • the anchors provided by the mounting brackets 178,180 and caps 86 may have application in avoiding the necessity of screw fixing the bottom ends of the cords to the widow frame, or providing a fixed bottom rail for the cords. Instead, the anchors in accordance with the present invention may be employed.

Abstract

Système pour monter un cache (100) sur une ouverture vitrée, le cache comprenant un ensemble (124) tête et une barre (108) esclave entre lesquels s'étend un ou plusieurs panneaux (102) cache, l'ouverture vitrée comprenant un cadre (10), un volet (20a) de verre retenu dans le cadre et un talon (22) flexible ou élastique disposé entre le volet de verre et le cadre, que le talon maintient contre le volet de verre. Le système comprend des moyens de montage (38, 40) pour l'ensemble tête, pour monter l'ensemble tête sur ou proche du sommet de l'ouverture vitrée; un premier et un second supports de montage (78, 80, 178, 180), comprenant chacun une première partie présentant au moins un premier doigt (82) plan s'étendant latéralement, configuré pour glisser en utilisation entre le talon (22) et le volet (20a) de verre, et une seconde partie (84) définissant une formation (86) de fixation qui s'étend sensiblement orthogonalement par rapport au plan du volet de verre. Un cordon support (106) est adapté pour être relié à et s'étendre à partir d'une formation de fixation, au travers d'une extrémité de ladite barre esclave dans l'ensemble tête, au travers d'un mécanisme (110) de tension, et vers le bas au travers de l'autre extrémité de ladite barre esclave vers ladite autre formation de fixation. En effet, l'invention propose un ancrage de fond (178, 180) pour un cache, ledit ancrage comprenant un premier et un second supports de montage et des moyens pour relier un cordon support pour le cache.
PCT/GB2007/002941 2006-08-04 2007-08-02 Caches et composants de ceux-ci WO2008015442A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP07789099.4A EP2054579B1 (fr) 2006-08-04 2007-08-02 Caches et composants de ceux-ci
JP2009522336A JP2010510408A (ja) 2006-08-04 2007-08-02 ブラインド及びそれの構成要素
BRPI0715133-0A BRPI0715133A2 (pt) 2006-08-04 2007-08-02 venezianas e componentes disso
AU2007280240A AU2007280240A1 (en) 2006-08-04 2007-08-02 Blinds and components thereof
MX2009001276A MX2009001276A (es) 2006-08-04 2007-08-02 Persianas y componentes de las mismas.
US12/375,790 US20090256036A1 (en) 2006-08-04 2007-08-02 Blinds and components thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0615518.8 2006-08-04
GB0615518A GB2440536B (en) 2006-08-04 2006-08-04 Blinds and Components Thereof
GB0701931A GB2440537B (en) 2006-08-04 2007-02-01 Blinds and components thereof
GB0701931.8 2007-02-01

Publications (1)

Publication Number Publication Date
WO2008015442A1 true WO2008015442A1 (fr) 2008-02-07

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Application Number Title Priority Date Filing Date
PCT/GB2007/002941 WO2008015442A1 (fr) 2006-08-04 2007-08-02 Caches et composants de ceux-ci

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Country Link
WO (1) WO2008015442A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7987890B2 (en) 2006-02-01 2011-08-02 Turnils (Uk) Ltd Blinds and components thereof
GB2527094A (en) * 2014-06-11 2015-12-16 Hilarys Blinds Ltd Improvements in or relating to mounting a blind

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004009270U1 (de) * 2004-06-11 2004-08-12 Aerolux Gmbh Befestigungsvorrichtung für Sonnenschutzeinrichtungen
EP1526245A1 (fr) * 2003-10-24 2005-04-27 Hunter Douglas Industries B.V. Tendeur de corde

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1526245A1 (fr) * 2003-10-24 2005-04-27 Hunter Douglas Industries B.V. Tendeur de corde
DE202004009270U1 (de) * 2004-06-11 2004-08-12 Aerolux Gmbh Befestigungsvorrichtung für Sonnenschutzeinrichtungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7987890B2 (en) 2006-02-01 2011-08-02 Turnils (Uk) Ltd Blinds and components thereof
GB2527094A (en) * 2014-06-11 2015-12-16 Hilarys Blinds Ltd Improvements in or relating to mounting a blind

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