EP0090822A1 - Window having sunshade prismatic bars. - Google Patents

Window having sunshade prismatic bars.

Info

Publication number
EP0090822A1
EP0090822A1 EP82902977A EP82902977A EP0090822A1 EP 0090822 A1 EP0090822 A1 EP 0090822A1 EP 82902977 A EP82902977 A EP 82902977A EP 82902977 A EP82902977 A EP 82902977A EP 0090822 A1 EP0090822 A1 EP 0090822A1
Authority
EP
European Patent Office
Prior art keywords
window
angle
plane
prism
sun
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
EP82902977A
Other languages
German (de)
French (fr)
Other versions
EP0090822B1 (en
Inventor
Christian Bartenbach
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.)
CHRISTIAN BARTENBACH TE INNSBRUCK, OOSTENRIJK.
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT82902977T priority Critical patent/ATE14910T1/en
Publication of EP0090822A1 publication Critical patent/EP0090822A1/en
Application granted granted Critical
Publication of EP0090822B1 publication Critical patent/EP0090822B1/en
Expired legal-status Critical Current

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

Definitions

  • the invention relates to a roof window according to the preamble of claim 1.
  • the invention is based on the object of preventing the passage of sun rays in a blocked area of a reference day for a window having a predetermined inclination and orientation, without impairing the light transmittance outside the blocked area.
  • the restricted area should not be larger than is necessary in view of the complete dazzle of the sun in the blocked area of the reference day.
  • the longest day of the year with the highest possible position of the sun is chosen as the reference day for the conditions for leaving; the sun is completely hidden throughout the year.
  • the invention is illustrated by the figures; show it
  • FIG. 1 schematically shows a window with the parameters
  • FIG. 2 shows a tanning diagram with trajectory curve B 'and glare curve A
  • FIG. 1 shows a skylight with the window surface F schematically, this window surface being inclined by the angle ⁇ relative to the horizontal plane H and oriented in the manner indicated towards south-east.
  • the window surface F is filled by a prism plate, which has a flat base surface PO on the outside and prism rods P which adjoin one another on the inside without gaps, with the catheter surfaces P1 and P2 running at right angles to one another (see the enlarged sectional view in the extension of the section line L in FIG. 1 ).
  • the longitudinal axes of the prism bars P run perpendicular to a section line L and thus include an axis angle - measured in the window plane F - pit of the horizontal boundary edge K.
  • the section line L is given by the section, the window surface F with that on its perpendicular reference plane E, in which the greatest elevation angle of the sun occurs on the reference day and within the restricted area, measured in the reference plane E against the section line L.
  • the trajectory of the sun on the reference day is denoted by 3 in FIG.
  • the largest elevation angle ⁇ ma x and the angle X max of the associated reference plane in which this largest elevation angle occurs can be read from FIG. This already determines the optimal axis angle ⁇ of the prism bars.
  • the blanking curve A must now run - at least in the desired blocking area - above the trajectory curve B ': the entire area below this blanking curve A is then the blocking area in which the prismatic plate does not let any light through. This restricted area should therefore lie as little as possible above the trajectory B 'of the reference day so that as much daylight as possible is let through.
  • the masking curves of prism rods with a different base angle are recorded according to FIG. 3 and then compared with the path curve to be masked out, the array of curves according to FIG. 3 being rotated so that the line of symmetry M ' The line of symmetry M of the trajectory B 'in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Blinds (AREA)
  • Building Awnings And Sunshades (AREA)

Abstract

Avec des lucarnes ayant une inclinaison et une orientation quelconques on doit pouvoir régler l'effet pare-soleil pendant toute l'année et avoir en même temps une bonne transparence à la lumière du jour. Dans ce but, on utilise une plaque prismatique plane à l'extérieur et qui présente à l'intérieur des barres prismatiques (P) parallèles ayant une surface (P1) sur le côté de l'angle droit sans couche réfléchissante. D'après l'invention, l'autre surface sur le côté (P2) présente une couche réfléchissante et forme avec la surface non réfléchissante un angle droit. De plus, les barres prismatiques sont disposées perpendiculairement à la ligne d'intersection (L) qui est déterminée par le plan d'intersection (M) avec lequel les rayons du soleil pendant le jour le plus long forment l'angle d'incidence maximum psi max par rapport au plan de la fenêtre (F). On peut choisir pour l'angle alpha de base de la surface (P1) non réfléchissante une valeur avec laquelle on obtient un effet pare-soleil et en même temps des conditions optimales de transparence à la lumière du jour.With skylights with any inclination and orientation, you should be able to adjust the sunshade effect all year round and at the same time have good transparency in daylight. For this purpose, a flat prismatic plate is used on the outside and which has parallel prismatic bars (P) inside having a surface (P1) on the side of the right angle without a reflective layer. According to the invention, the other surface on the side (P2) has a reflective layer and forms with the non-reflective surface a right angle. In addition, the prismatic bars are arranged perpendicular to the line of intersection (L) which is determined by the plane of intersection (M) with which the rays of the sun during the longest day form the maximum angle of incidence. psi max with respect to the plane of the window (F). One can choose for the basic alpha angle of the non-reflecting surface (P1) a value with which one obtains a sun visor effect and at the same time optimal conditions of transparency in daylight.

Description

Fenster mit Prismenstäben zur Sormenausblendung Window with prismatic bars to hide the Sormen
Die Erfindung betrifft ein Dachfenster gemäß Oberbegriff des Patentanspruches 1.The invention relates to a roof window according to the preamble of claim 1.
Der Erfindung liegt die Aufgabe zugrunde, bei einem Fenster vorgegebener Neigung und Ausrichtung den Durchtritt von Sonnenstrahlen in einem Sperrbereich eines Bezugstages zu vermeiden, ohne die Lichtdurchlässigkeit außerhalb des Sperrbereiches zu beeinträchtigen. Insbesondere soll der Sperrbereich nicht größer sein, als es im Hinblick auf die vollständige Aμsblendung der Sonne in dem Sperrbereich des Bezugstages erforderlich ist.The invention is based on the object of preventing the passage of sun rays in a blocked area of a reference day for a window having a predetermined inclination and orientation, without impairing the light transmittance outside the blocked area. In particular, the restricted area should not be larger than is necessary in view of the complete dazzle of the sun in the blocked area of the reference day.
Die erfindungsgemäße Lesung dieser Aufgabe ist in Patent anspruch 1 gekennzeichnet- Sie beruht auf der Feststellung, daß die Au≤blendkurve eines solchen Fensters in. einem Besonnungsdiagraam gleichartig verläuft wie die Bahnkurven der Sonne, daß sich femer durch geeignete Wahl des Achswinkels der Prismenstäbe die Mittelachse der Aus blendkurve in die Mittelachse der Sonnenbahn einschwenken und daß sich femer die Ausblendkurve durch entsprechende Wahl des Basiswinkels der Prismenstäbe sehr dicht, an die Bahnkurve heranrücken läßt; dadurch ist eine Minimierung der Fläche zwischen Aushlendkurve und Bahnkurve möglich, so daß das Fenster ein Maximum an Tageslicht durchläßt.The reading of this task according to the invention is characterized in patent claim 1 - it is based on the finding that the fade-out curve of such a window in a tanning chart runs in the same way as the trajectory of the sun, that the central axis is also chosen by a suitable choice of the angle of the prismatic rods Swing the fade curve into the central axis of the sun's path and that the fade out curve can be moved very close to the path curve by appropriate choice of the base angle of the prism rods. this enables the area between the end curve and the path curve to be minimized, so that the window allows maximum daylight to pass through.
In der Regel wird als Bezugstag für die Ausbiendbedingung der längste Tag des Jahres mit dem höchstmöglichen Sonnenstand gewählt; es ist dann während des ganzen Jahres eine vollständige Ausblendung der Sonne gewährleistet. Die Erfindung wird anhand der Figuren näher erläutert; es zeigenAs a rule, the longest day of the year with the highest possible position of the sun is chosen as the reference day for the conditions for leaving; the sun is completely hidden throughout the year. The invention is illustrated by the figures; show it
FIG 1 schematisch ein Fenster mit den Bestimmungsgrößen, FIG 2 ein Besonnungsdiagramm mit Bahnkurve B' und Aus blendkurve A, sowie1 schematically shows a window with the parameters, FIG. 2 shows a tanning diagram with trajectory curve B 'and glare curve A, and
FIG 3 eine Schar von Ausblendkurven für einen Prismenstab mit unterschiedlichem Basiswinkel3 shows a family of masking curves for a prism rod with a different base angle
In FIG 1 ist ein Dachfenster mit der Fensterfläche F schematisch dargestellt, wobei diese Fensterfläche gegenüber der Hcrizontalebene H um den Winkel ß geneigt und in der angegebenen Weise gegen Süd-óst ausgerichtet ist. Die Fensterfläche F wird von einer Prismenplatte ausgefüllt, die auf der Außenseite eine ebene Basisfläche PO und auf der Innenseite lückenlos aneinandergrenzende Prismenstäbe P mit den rechtwinklig zueinander verlaufenden Kathetenflächen P1 und P2 aufweist (vgl. das vergrößerte Schnittbild in der Verlängerung der Schnittlinie L in FIG 1 ).1 shows a skylight with the window surface F schematically, this window surface being inclined by the angle β relative to the horizontal plane H and oriented in the manner indicated towards south-east. The window surface F is filled by a prism plate, which has a flat base surface PO on the outside and prism rods P which adjoin one another on the inside without gaps, with the catheter surfaces P1 and P2 running at right angles to one another (see the enlarged sectional view in the extension of the section line L in FIG. 1 ).
Die Längsachsen der Prismenstäbe P verlaufen senkrecht zu einer Schnittlinie L und schließen somit einen Achswinkel - gemessen in der Fenstsrebene F - pit der horizontalen Begrenzungskante K ein. Die Schnittlinie L ist gege- 'ben durch den Schnitt, der Fensterfläche F mit derjenigen auf ihr senkrecht stehenden Bezugsebene E, in der der größte Höhenwinkel der Sonne an dem Bezugstag und innerhalb des Sperrbereiches auftritt, und zwar gemessen in der Bezugsebene E gegen die Schnittlinie L. Die Bahnkurve der Sonne am Bezugstag ist in FIG 1 mit 3 bezeichnet.The longitudinal axes of the prism bars P run perpendicular to a section line L and thus include an axis angle - measured in the window plane F - pit of the horizontal boundary edge K. The section line L is given by the section, the window surface F with that on its perpendicular reference plane E, in which the greatest elevation angle of the sun occurs on the reference day and within the restricted area, measured in the reference plane E against the section line L. The trajectory of the sun on the reference day is denoted by 3 in FIG.
Eine der Kathetenflächen, nämlich P2, der Prismenstäbe P ist auf der Innenseite verspiegelt. Die Prismenstäbe sind so angeordnet, daß die Spitze des größten Höhenwinkels maz auf die verspiegelte Kathetenfläche P2 hinweist. FIG 2 zeigt qualitativ den Verlauf der Sonnenbahn B': Sie gibt den jeweiligen Höhenwinkel Ψ eines Sonnenstrahles D gemessen in der auf der Fensterebene E senkrechten Bezugsebene abhängig von dem Winkel X der Schnittlinie L dieser 3ezugsebeήe mit der Fensterebene gemessen gegen die Horizontalkante K (entsprechend den Definitionen für die Bezugsebene E in FIG 1 ).One of the catheter surfaces, namely P2, of the prism rods P is mirrored on the inside. The prism rods are arranged so that the tip of the greatest height angle maz indicates the mirrored catheter surface P2. 2 shows qualitatively the course of the sun orbit B ': it gives the respective elevation angle Ψ of a sunbeam D measured in the reference plane perpendicular to the window plane E, depending on the angle X of the intersection line L of this reference plane with the window plane measured against the horizontal edge K (corresponding to the Definitions for the reference plane E in FIG. 1).
Aus FIG 2 läßt sich nun der größte Höhenwinkel Ψ ma x und der Winkel X max der zugehörigen Bezugsebene, in der dieser größte Höhenwinkel auftritt, ablesen. Damit ist bereits der optimale Achswinkel α der Prismenstäbe bestimmt..The largest elevation angle Ψ ma x and the angle X max of the associated reference plane in which this largest elevation angle occurs can be read from FIG. This already determines the optimal axis angle α of the prism bars.
Die Ausblendkurve A muß nun - zumindest in dem gewünsch ten Sperrbereich - oberhalb der Bahnkurve B' verlaufen: Das gesamte Gebiet unterhalb dieser Ausblendkurve A ist dann der Sperrbereich, in dem die Prismenplatte kein Licht durchläßt. Dieser Sperrbereich sollte daher mög liehst wenig über der Bahnkurve B' des Bezugstages liegen, damit möglichst viel Tageslicht durchgelassen wird. Dies ist durch geeignete Wahl des Basiswinkels α der Prismenstäbe möglich: Hierzu werden die Ausblendkurven von Prismenstäben mit unterschiedlichem Basiswinkel gemäß FIG 3 aufgenommen und dann mit der auszublendenden Bahnkurve verglichen, wobei die Kαrvenschar nach FIG 3 so gedreht wird, daß sich die Symmetrielinie M' mit der Symmetrielinie M der Bahnkurve B' in FIG 2 deckt: Die beiden Diagramme sind dann unmittelbar vergleichbar, weil sie für denselben Bezugswinkel X der Bezugsebene E einmal den Höhenwinkel Ψ der Sonne in dieser Bezugsebene und zum anderen den Ausblendwinkel eines senkrecht zu dieser Bezugsebene E verlaufenden Prismenstabes P wiedergeben.The blanking curve A must now run - at least in the desired blocking area - above the trajectory curve B ': the entire area below this blanking curve A is then the blocking area in which the prismatic plate does not let any light through. This restricted area should therefore lie as little as possible above the trajectory B 'of the reference day so that as much daylight as possible is let through. This is possible by a suitable choice of the base angle α of the prism rods: For this purpose, the masking curves of prism rods with a different base angle are recorded according to FIG. 3 and then compared with the path curve to be masked out, the array of curves according to FIG. 3 being rotated so that the line of symmetry M ' The line of symmetry M of the trajectory B 'in FIG. 2 covers: The two diagrams are then directly comparable because, for the same reference angle X of the reference plane E, they include the height angle Ψ of the sun in this reference plane and the blanking angle of a perpendicular to this reference plane E. Play prism pole P.
Es ist daher jetzt nur noch die der Bahnkurve B' am nächsten liegende Ausblendkurve A auszusuchen, der in diesem Fall ein Basiswinkel θ{ von 34 zugeordnet ist. Offensichtlich könnte der Abstand zwischen Ausblend- und Bahnkurve durch Wahl eines noch etwas geringeren Basiswinkels weiter reduziert werden. It is therefore now only necessary to select the masking curve A which is closest to the curve curve B ', the one in this If a base angle θ {of 34 is assigned. Obviously, the distance between the masking and trajectory curve could be further reduced by choosing a slightly lower base angle.

Claims

Patentansprüche Claims
1. Fenster, dessen Fensterebene (F) mit der Horizontalen einen vorgegebenen Neigungswinkel (ß) einschließt, mit ei ner parallel zur Fensterebene (F) angeordneten Prismenplatte, die außen eine ebene Basisfläche (PO) und auf der Innenseite nebeneinander und parallel zueinander verlau fende Prismenstäbe (P) aufweist, die sich über die gesamte Fensteröffnung erstrecken, wobei eine unverspiegelte Kathetenfläche (P1 ) jedes Prismenstabes einen spitzen Basiswinkel (α) mit der Basisfläche (PO) einschließt, d a d u r c h g e k e nn z e i c h n e t , daß die zweite Kathetenfläche. (P2) jedes Prismenstabes (P) ver spiegelt ist und senkrecht auf der unverspiegelten Kathe tenflache (P1 ) steht, daß die Prismenstäbe (P) so angeordnet sind, daß die Spitze des Höhenwinkels (ψ) der Sonnenstrahlen, gemessen gegen die Fensterebene (F) in einer auf ihr senkrecht stehenden Bezugsebene (E), beim höchsten auszublendenden. Sonnenstand gegen die verspie- gelte Kathetenfläche (P2) zeigt, und daß der Basiswinkel (α) zwischen der unverspiegelten Kathetenfläche (P1 ) und der Basi≤flache (PO) jedes Prismenstabes (P) so groß gewählt ist, daß das Fenster an einem vergegebenen Bezugstag in einem Sperrbereich, keine Sonnenstrahlen durchläßt.1. Window, the window plane (F) with the horizontal includes a predetermined angle of inclination (ß), with egg ner parallel to the window plane (F) arranged prismatic plate, the outside a flat base surface (PO) and on the inside side by side and parallel to each other end Has prism bars (P), which extend over the entire window opening, an unmirrored catheter surface (P1) of each prism bar forms an acute base angle (α) with the base surface (PO), characterized in that the second catheter surface. (P2) each prism pole (P) is reflected and perpendicular to the non-mirrored Kathe tenflache (P1) is that the prism poles (P) are arranged so that the peak of the height angle (ψ) of the sun rays, measured against the window plane (F ) in a reference plane (E) perpendicular to it, at the highest to be hidden. Sun position against the mirrored catheter surface (P2) shows, and that the base angle (α) between the non-mirrored catheter surface (P1) and the base surface (PO) of each prism pole (P) is chosen so large that the window on a given Reference day in a restricted area, no sun rays let through.
2. Fenster nach Anspruch 1, d a d u r c h g e k e n n z e i c hn e t , daß der Achswinkel (α ) zwischen den Prismenstäben (P) und einer Schnittlinie (L) in der Fensterebene (F) 90° ± 15°, insbesondere 90° ± 5° beträgt, wobei die Schnittlinie. (L) bestimmt ist durch diejenige Bezugsebene (E), in der am Bezugstag der größte Höhenwinkel (Ψmax) auftritt.2. Window according to claim 1, dadurchgekennzeic hn et that the axis angle (α) between the prism bars (P) and a cutting line (L) in the window plane (F) is 90 ° ± 15 °, in particular 90 ° ± 5 °, wherein the cutting line. (L) is determined by the reference plane (E) in which the greatest elevation angle (Ψmax) occurs on the reference day.
3. Fenster nach Anspruch 2, g e k e nn z e i c hn e t durch einen solchen Basiswinkel (α ) der Prismen stäbe, daß die Fläche zwischen der Bahnkurve (B') der Sonne und der Ausblendkurve (A) der Prismen im Besonnungsdiagramm im Sperrbereich des Bezugstages den kleinstmöglichen Wert hat.3. Window according to claim 2, geke nn zeic hn et by such a base angle (α) of the prisms rods that the area between the path curve (B ') of the sun and the fade-out curve (A) of the prisms in the tanning diagram in the restricted area of the reference day has the smallest possible value.
4. Fenster nach einem der Ansprüche 1 bis 3, d a dur c h g e k e nn z e i c hn e t , daß der Bezugstag der längste Tag des Jahres ist.4. Window according to one of claims 1 to 3, d a dur c h g e k e nn z e i c hn e t that the reference day is the longest day of the year.
- -
EP82902977A 1981-09-25 1982-09-20 Window having sunshade prismatic bars Expired EP0090822B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82902977T ATE14910T1 (en) 1981-09-25 1982-09-20 WINDOWS WITH PRISM RODS FOR SUN BLIND.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3138270 1981-09-25
DE3138270 1981-09-25
DE3227118 1982-07-20
DE3227118A DE3227118C2 (en) 1981-09-25 1982-07-20 window

Publications (2)

Publication Number Publication Date
EP0090822A1 true EP0090822A1 (en) 1983-10-12
EP0090822B1 EP0090822B1 (en) 1985-08-14

Family

ID=25796330

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82902977A Expired EP0090822B1 (en) 1981-09-25 1982-09-20 Window having sunshade prismatic bars

Country Status (11)

Country Link
US (1) US4522467A (en)
EP (1) EP0090822B1 (en)
JP (1) JPS58501517A (en)
AU (1) AU554511B2 (en)
BR (1) BR8207887A (en)
DE (2) DE3227118C2 (en)
ES (1) ES281699Y (en)
IL (1) IL66872A0 (en)
IT (1) IT1152592B (en)
OA (1) OA07432A (en)
WO (1) WO1983001085A1 (en)

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DE69328156T2 (en) 1992-06-17 2000-12-14 Figla Co Ltd TRANSLUCENT COMPONENTS AND METHOD FOR REGULATING NATURAL LIGHT QUANTITY AND NATURAL LIGHT AREA BY USING THE LIGHT-TRANSFERABLE COMPONENTS
US6094306A (en) * 1993-04-13 2000-07-25 Anvik Corporation Energy efficient window
US6014845A (en) * 1993-05-24 2000-01-18 Anvik Corporation Energy-efficient solar shade system for skylights
DE19538651B4 (en) * 1995-10-17 2004-07-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sun protection device made of a material transparent to sunlight
DE19631933C2 (en) * 1996-08-08 2000-10-05 Werner Lorenz Window pane
GB9710034D0 (en) * 1997-05-16 1997-07-09 Secretary Trade Ind Brit Roller blind or curtain
DE10161938A1 (en) 2001-12-17 2003-06-18 Fraunhofer Ges Forschung Sun-light protection device for buildings, uses structured elements each provided with triangular cross-sectional surface
GB2385627A (en) * 2002-02-23 2003-08-27 Duncan Mchardy Window with triangular prisms

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US3443860A (en) * 1962-06-06 1969-05-13 Sergius N Ferris Luboshez Pleated shade for controlling heat and light
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Also Published As

Publication number Publication date
ES281699Y (en) 1986-06-01
DE3227118A1 (en) 1983-04-21
AU554511B2 (en) 1986-08-21
OA07432A (en) 1984-11-30
IL66872A0 (en) 1982-12-31
JPS58501517A (en) 1983-09-08
US4522467A (en) 1985-06-11
DE3265432D1 (en) 1985-09-19
JPH026914B2 (en) 1990-02-14
DE3227118C2 (en) 1985-06-13
AU8993682A (en) 1983-04-08
WO1983001085A1 (en) 1983-03-31
IT8223285A0 (en) 1982-09-15
ES281699U (en) 1985-11-16
IT1152592B (en) 1987-01-07
BR8207887A (en) 1983-10-18
EP0090822B1 (en) 1985-08-14

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