EP0899411A2 - Kombinierte Mehrfachverglasung und Lichtsteuerungsvorrichting - Google Patents

Kombinierte Mehrfachverglasung und Lichtsteuerungsvorrichting Download PDF

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Publication number
EP0899411A2
EP0899411A2 EP98306758A EP98306758A EP0899411A2 EP 0899411 A2 EP0899411 A2 EP 0899411A2 EP 98306758 A EP98306758 A EP 98306758A EP 98306758 A EP98306758 A EP 98306758A EP 0899411 A2 EP0899411 A2 EP 0899411A2
Authority
EP
European Patent Office
Prior art keywords
window
slats
section
pane
light
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
EP98306758A
Other languages
English (en)
French (fr)
Other versions
EP0899411A3 (de
EP0899411B1 (de
Inventor
Robert Jan Levert
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.)
R&r Sonnenschutztechnik GmbH
Original Assignee
Hunter Douglas Industries BV
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 Hunter Douglas Industries BV filed Critical Hunter Douglas Industries BV
Priority to EP19980306758 priority Critical patent/EP0899411B1/de
Publication of EP0899411A2 publication Critical patent/EP0899411A2/de
Publication of EP0899411A3 publication Critical patent/EP0899411A3/de
Application granted granted Critical
Publication of EP0899411B1 publication Critical patent/EP0899411B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E06B9/264—Combinations of lamellar blinds with roller shutters, screen windows, windows, or double panes; Lamellar blinds with special devices
    • 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
    • E06B2009/2423—Combinations of at least two screens
    • E06B2009/2447—Parallel screens
    • E06B2009/2452—Parallel screens moving independently

Definitions

  • This invention relates to a multiple-glazed window containing an integral assembly for controlling the amount of daylight passing though the window into a room.
  • the invention relates to a window having a peripheral frame enclosing inside and outside glass panes that are substantially parallel and define a space between them which is preferably sealed and in which the light-control assembly is mounted.
  • Double-pane windows containing motorized venetian blinds as light-control assemblies have been described in US patents 4,723,586 and 4,979,552. Such windows have satisfied most light-control requirements.
  • the mere positioning of a venetian blind within the space between two glass panes in a window has long been known to reduce heat losses by radiation through the window to an extent approaching those of windows with triple panes.
  • Anti-glare venetian blinds have also been previously described.
  • an anti-glare venetian blind is provided with slats: which are upwardly concave, which have their inner longitudinal edges (facing towards the room) as high or higher than their outer longitudinal edges (facing away from the room), which are mirrored on at least their topsides and retro-reflecting on their undersides, and the spacing and position of which are so selected that the light passes through them mostly into an angular region above the horizon.
  • slats which are: upwardly concave, mirrored on their topsides and at least partially perforated.
  • blinds appear to be able to guide light towards the ceiling of a room and avoid glare, they are not adapted to allow some sunlight to enter the rest of a room. In this regard, it would be desirable, on sunny days, to be able to block or inhibit heat and glare from entering the rest of the room, without blocking daylight illumination entirely from the rest of the room.
  • a double-pane window containing, within a peripheral frame, a light-control assembly that includes:
  • the upper and lower sections each comprise a venetian blind assembly provided with a plurality of substantially parallel laterally-extending elongate slats, the slats of at least the lower section being pivotable about their laterally- extending axes.
  • Such'an assembly allows the use of standard components from existing double-pane windows containing enclosed venetian blinds such as are disclosed in US patent 4,723,586.
  • the lower section of the light-control assembly is adjustable independently of the upper section. This permits the assembly to be used to optimize light control under different conditions.
  • the slats of at least the upper section of the light-control assembly preferably have a highly reflective upper surface for improved control of daylight which these slats redirect through the window.
  • the slats of at least the upper section can be perforated or partly translucent.
  • each of the upwardly concave slats of the upper section preferably has a mirrored top surface and a retro- reflective bottom surface.
  • the upwardly concave slats of the upper section preferably have a mirrored top surface and are wholly or partially perforated.
  • heat losses by radiation through the window of this invention, particularly in the winter, can be further substantially reduced by providing the surface on the inside- and/or outside-facing surfaces of preferably all of the slats with an emission coefficient lower than 0.5, and preferably lower than 0.3, for radiation with a wavelength larger than 1.5 micrometer.
  • advantageous are aluminium slats coated with a very thin zinc chromate layer, such as are described in British patent 1,536,600.
  • each slat of the light-control assembly in accordance with this invention can be individually suspended from pivots on laterally opposite sides of the window frame, it is preferred that the slats be tiltably suspended from laterally-spaced tilt cords.
  • the slats of the lower section of the light control assembly may be tiltably suspended from laterally-spaced tilt cords and the slats of the upper section be non-tiltably fixed in a position re-directing light upwardly towards the ceiling of the room.
  • an electric motor is used to adjust at least the slats of the lower section of the light-control assembly.
  • a suitable electric motor is described in US patent 4,979,552 and is preferably hermetically sealed in the space between the windowpanes. The use of such an electric motor is particularly advantageous when movement of the light-control assembly is to be adjusted with a microprocessor control so as to allow optimal light regulation under varying conditions without requiring the intervention of the room occupants.
  • the top of the lower section is suspended from a laterally-extending intermediate bar, beneath the upper section.
  • a laterally-extending intermediate bar is suspended only at its lateral edges from laterally opposite sides of the frame, using a T-shaped connector at one lateral edge and an electric motor for the lower section as a connector at the other lateral edge.
  • the window of the invention is substantially vertical. Normally it will be truly vertical but it may be mounted in a slanted position in which case the plane of its light-control assembly is advantageously positioned closer to the upper glass pane of the window, as so mounted.
  • the attachment of the upper and lower sections of the light-control assembly to the intermediate bar be positioned closer to the upper glass pane to compensate for any sagging of the light-control assembly within the slanted window, and it is particularly advantageous that the upper end of the upper section and the lower end of the lower section also be positioned closer to the upper glass pane to compensate for any sagging of the light-control assembly within the slanted window.
  • FIG. 1 Schematically shown in Figures 1 and 2 is one embodiment of a substantially vertical, hermetically sealed, double-pane window of this invention, generally indicated by reference A.
  • the window A is provided with a light-control assembly, generally indicated by reference B, that is mounted in the space between the two glass panes 1 and 3 of the window.
  • the first or outside pane of glass 1 and the second or inside pane of glass 3 are positioned on opposite sides of a rectangular peripheral, plastic or metal (e.g., aluminum) frame 5 of the window A.
  • the glass panes 1 and 3 and the frame 5 are adhered together by a suitable sealing compound, such as is conventional in making hermetically sealed, multiple-glazed windows.
  • the light-control assembly B mounted between the glass panes 1 and 3 and within the frame 5 of the window A of Figures 1 and 2, has an upper section 7 and a lower section 9.
  • Each section 7 and 9 comprises an array of parallel elongate slats 11 and 13 respectively, that are substantially horizontal and laterally-extending and can be pivoted or tilted about their laterally-extending axes.
  • the slats 13 of the lower section 9 can be pivoted or tilted about their laterally-extending axes while the slats 11 of the upper section are non-tiltably fixed in a position allowing the light to be guided towards the ceiling.
  • the upper section 7 occupies less of the area of the window A than does the lower section 9.
  • the slats 11 and 13 each have a curved cross-section when viewed parallel to the panes of the window A.
  • the slats 11 in the upper section 7 have their concave surfaces facing generally upwardly, and the slats 13 in the lower section 9 have their convex surfaces facing generally upwardly.
  • Each section 7 and 9 of the light-control assembly B is provided with its own motor drive 15 and 17, respectively, for tilting its slats.
  • its motor drive 15 can be omitted.
  • the first motor 15 for tilting the slats 11 of the upper section 7 is mounted in the peripheral frame 5 as described in US patent 4,979,552.
  • the second motor 17 for tilting the slats 13 of the lower section 9 is connected to a lateral edge of a substantially horizontal laterally-extending elongate intermediate bar 19 which separates the upper section 7 from the lower section 9 of the light-control assembly B of the double-pane window A.
  • daylight can be reflected from the outside by the slats 11 of the upper section 7 of the window A on to a ceiling surface of a room to compensate for the light blocked out, for glare protection, by the slats 13 of the lower section 9 of the window.
  • a suitable proportion of light protection and light redirection can be obtained for many windows of office buildings and the like if the upper section 7 extends over roughly one-third of the height of the window A as indicated by “a” in Figure 2 and the lower section 9 extends over roughly two-thirds thereof as indicated by "b" in Figure 2.
  • the light distribution effects of the upper section 7 of the light-control assembly B can be further improved by positioning its slats 11 with their upwardly concave surfaces 21 facing generally vertically upward and additionally by providing these concave surfaces 21 with highly reflective properties.
  • top surfaces of these slats can be mirrored as described in EP 0,303,107.
  • the bottom surfaces of these slats 11 can likewise be provided with retro-reflective properties as described in EP 0,303,107 or instead, the slats 11 can be wholly or partially perforated as described in EP 0,606,543.
  • both the upper and lower blind sections 7 and 9 of the light-control assembly B of this invention are pivotally suspended from respective transversely-extending tilt bars 23 and 25 by means of parallel ladder strings 27, the upper ends of which are attached to the transverse edges of the tilt bars.
  • the lower end of each blind section 7 and 9 carries a transversely-extending terminal slat 29 and 30 respectively, which preferably is identical to the upper tilt bars 23 and 25.
  • the lower ends of the parallel ladder strings 27 are attached to the transverse edges of the terminal slats 29 and 30.
  • the upper tilt bar 23 and the lower terminal slat 30 are pivotally connected to conventional, horizontal, upper and lower carriers or glass spacers 31 and 32 respectively, which are mounted within the frame 5, on its top and bottom respectively.
  • the lower tilt bar 25 and the upper terminal slat 29 are pivotally connected to the bottom and top of the intermediate bar 19.
  • the tilt bars 23 and 25 and terminal slats 29 and 30 can be pivotally connected to their respective spacers 31 and 32 and intermediate bar 19 in a conventional manner.
  • these elements are connected in the manner described in US patent 4,723,586, using detent grooves (not shown) in the top and bottom of the spacers 31 and 32 and the intermediate bar 19 and using hanger pivots 33 mounted in the grooves and pivotally connected to the respective tilt bars and terminal slats.
  • the transverse spacing "c" in Figure 2 between the panes of glass 1 and 3 is a function of the thickness of the peripheral frame 5, including its spacers 31 and 32.
  • the transverse spacing "c” must accommodate the transverse thickness "d” of the blind slats 11 and 13 and the transverse thickness of the spacers 31 and 32 as shown in Figure 2.
  • the intermediate bar 19 should be as unobtrusive as possible, and its height "e" as shown in Figure 2 should be about the same as the vertical spacing between adjacent slats 11 and 13. At the same time, the intermediate bar 19 should be sturdy enough to carry the weight of the bottom section 9 of the light control assembly B.
  • the transverse edges of the intermediate bar 19 can be mounted on the opposed inner surfaces of the glass panes 1 and 3 in a manner similar to that used for mounting the spacers 31 and 32 on the frame 5.
  • the sealing compound used to bond and seal the frame 5 and glass panes 1 and 3 together could also be used for this purpose.
  • the intermediate bar 19 it is possible that the intermediate bar 19 to be free of attachment to the inner surfaces of the glass panes 1 and 3, and, in particular, for the intermediate bar 19 to be free-floating relative to the panes 1 and 3.
  • the intermediate bar 19 could be suspended from the terminal slat 29 of the upper section 7 of the light control assembly B, and if desired, the motor 17 for driving the slats 13 of the lower section 9 could also be free-hanging with the intermediate bar 19 within the window A of this invention.
  • laterally opposite sides of the frame 5 are provided with vertical frame members 35, 37, 39 and 41, two of the frame members 35 and 37 being located above the intermediate bar 19, the other two frame members 39 and 41 being located below the intermediate bar 19, and an upper frame member 35 and a lower frame member 39 being located on opposite lateral sides of the frame from the other upper and lower frame members 37 and 41 respectively.
  • the motor 15 for the upper section 7 of the light-control assembly B is connected to both the upper spacer 31 and the top of the left upper vertical frame member 35, thereby forming the left upper corner of the frame.
  • the other motor 17 for the lower section 9 of the light-control assembly B is connected to the bottom of the left upper vertical frame member 35, as well as to the top of the lower left vertical frame member 39.
  • the remaining three corners of the frame are connected by L-shaped corner connectors 43.
  • the intermediate bar 19 is connected to the right upper and lower frame members 37 and 41 by a T-shaped connector 45 which is separately shown to an enlarged scale in an insert to Figure 3.
  • the T-shaped connector is adapted to be inserted into the bottom of the upper frame member 37, into the top of the lower frame member 41 and into a lateral side of the intermediate bar 19.
  • the motors 15 and 17 each have a laterally-protruding, slotted shaft 47.
  • Each of these shafts 47 is adapted to engage a lateral edge of one of the tilt bars 23 and 25 of the upper and lower sections 7 and 9 of the light- control assembly B of the window A of this invention as shown in Figure 2.
  • electrical conduits (not shown) pass through the frame, preferably in a sealed manner, and are connected to the motors 15 and 17 to power them.
  • FIG. 4 A cross-section of the intermediate bar 19 is shown in Figure 4.
  • Upwardly extending, hanger attachment flanges 49 and 51 define an undercut detent groove between them on the upper side of the intermediate bar 19. Similar detent grooves are also provided between the downwardly extending, hanger attachment flanges 53 and 55 on the lower side of the intermediate bar 19.
  • the pivot hangers 33 such as are described in US patent 4,723,586, are engaged in such grooves and are connected to the tilt bars 23 and 25 and the terminal slats 29 and 30.
  • Figure 5 shows an inclined sealed double-pane window, generally A', with a light-control assembly B' of this invention having a modified intermediate bar 119.
  • the hangers (not shown in Figure 5) on the tilt bar (also not shown in Figure 5) at the upper end of the upper section 107 and on the terminal slat (also not shown in Figure 5) at the lower end of the lower section 109 also are mounted on their respective upper and lower spacers closer to the upper glass pane 101 to compensate further for any sagging of the light-control assembly B' within the slanted window A'.
  • the transverse spacing "h" in Figure 5 of the intermediate bar 119 from the upper and lower panes 101 and 103 is preferably kept equal, so that the intermediate bar can be connected to the vertical frame members (not shown) in the same manner as is described in relation to Figure 3.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
EP19980306758 1997-08-28 1998-08-24 Kombinierte Mehrfachverglasung und Lichtsteuerungsvorrichtung Expired - Lifetime EP0899411B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19980306758 EP0899411B1 (de) 1997-08-28 1998-08-24 Kombinierte Mehrfachverglasung und Lichtsteuerungsvorrichtung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97202627 1997-08-28
EP97202627 1997-08-28
EP19980306758 EP0899411B1 (de) 1997-08-28 1998-08-24 Kombinierte Mehrfachverglasung und Lichtsteuerungsvorrichtung

Publications (3)

Publication Number Publication Date
EP0899411A2 true EP0899411A2 (de) 1999-03-03
EP0899411A3 EP0899411A3 (de) 1999-10-27
EP0899411B1 EP0899411B1 (de) 2003-10-15

Family

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Application Number Title Priority Date Filing Date
EP19980306758 Expired - Lifetime EP0899411B1 (de) 1997-08-28 1998-08-24 Kombinierte Mehrfachverglasung und Lichtsteuerungsvorrichtung

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EP (1) EP0899411B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804161A1 (fr) 2000-01-26 2001-07-27 Saint Gobain Vitrage Vitrage isolant a double store integre
WO2002035046A3 (en) * 2000-10-27 2002-06-27 Kim Egholm An optical screen element

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1536600A (en) 1975-12-19 1978-12-20 Nordstjernan Rederi Ab Venetian blind
US4723586A (en) 1984-12-12 1988-02-09 Hunter Douglas International N.V. Venetian blind
EP0303107A2 (de) 1987-08-10 1989-02-15 Christian Bartenbach Blendschutzeinrichtung
US4979552A (en) 1988-06-03 1990-12-25 Hunter Douglas International N.V. Multiple glazed window unit
EP0606543A1 (de) 1993-01-15 1994-07-20 Christian Bartenbach Blendschutzeinrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117146A1 (de) * 1991-05-25 1992-11-26 Mueller Helmut Frank Ottomar P Tageslicht-beleuchtungsvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1536600A (en) 1975-12-19 1978-12-20 Nordstjernan Rederi Ab Venetian blind
US4723586A (en) 1984-12-12 1988-02-09 Hunter Douglas International N.V. Venetian blind
EP0303107A2 (de) 1987-08-10 1989-02-15 Christian Bartenbach Blendschutzeinrichtung
US4979552A (en) 1988-06-03 1990-12-25 Hunter Douglas International N.V. Multiple glazed window unit
EP0606543A1 (de) 1993-01-15 1994-07-20 Christian Bartenbach Blendschutzeinrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2804161A1 (fr) 2000-01-26 2001-07-27 Saint Gobain Vitrage Vitrage isolant a double store integre
EP1120535A1 (de) 2000-01-26 2001-08-01 Saint-Gobain Glass France Isolierverglasung mit integrierter Doppeljalousie
WO2002035046A3 (en) * 2000-10-27 2002-06-27 Kim Egholm An optical screen element

Also Published As

Publication number Publication date
EP0899411A3 (de) 1999-10-27
EP0899411B1 (de) 2003-10-15

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