EP2336479B1 - Sonnenschutzsystem mit beweglichen Lamellen - Google Patents

Sonnenschutzsystem mit beweglichen Lamellen Download PDF

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Publication number
EP2336479B1
EP2336479B1 EP10015817A EP10015817A EP2336479B1 EP 2336479 B1 EP2336479 B1 EP 2336479B1 EP 10015817 A EP10015817 A EP 10015817A EP 10015817 A EP10015817 A EP 10015817A EP 2336479 B1 EP2336479 B1 EP 2336479B1
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EP
European Patent Office
Prior art keywords
sun
blades
sun louver
screening system
elements
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.)
Not-in-force
Application number
EP10015817A
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English (en)
French (fr)
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EP2336479A1 (de
Inventor
Pietro FRANCHI
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Individual
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Individual
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Publication of EP2336479A1 publication Critical patent/EP2336479A1/de
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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
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B7/08—Louvre doors, windows or grilles
    • E06B7/084—Louvre doors, windows or grilles with rotatable lamellae
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F10/00—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins
    • E04F10/08—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of a plurality of similar rigid parts, e.g. slabs, lamellae
    • E04F10/10—Sunshades, e.g. Florentine blinds or jalousies; Outside screens; Awnings or baldachins of a plurality of similar rigid parts, e.g. slabs, lamellae collapsible or extensible; metallic Florentine blinds; awnings with movable parts such as louvres

Definitions

  • the present invention regards a solar radiation screening system having an improved structure and capable of being applied near windows of a building as well as comprising a plurality of movable sun louver elements supported in a parallel relation with a predetermined interval along horizontal axes and at a predetermined distance from said windows.
  • the invention regards a movable sun louver element incorporated in the abovementioned screening system.
  • the invention substantially regards the field of "daylighting", i.e. the techniques that provide for maximum exploitation of natural light limiting the use of artificial light for daylighting public or residential buildings and the description that follows is provided with reference to this field of application with the sole aim of simplifying exposure thereof.
  • sun louvers There are various types of fixed sun louvers: they may be made up of a simple projection extended cantilevered above the glass surface or a plurality elements arranged in a parallel relation with a regular interval. In the latter case, the sun louvers are made with laminar sections, preferably wing-shaped, which are mounted horizontally at a predetermined distance from the glass surface. The number and spacing thereof are defined according to the application needs, depending on whether maximizing the screening effect or maximizing the external vision of the occupants of the building is required.
  • Sun louvers of the movable type which have become more and more common in public environments that are mainly used during the day such as hospitals, schools, offices, commercial and industrial buildings are also known.
  • These movable sun louvers are relatively complex structures in which a plurality of orientable blades are supported in a parallel relation on respective axes held by a metal frame structure. These blades rotate cohesively each around the support axis thereof and the most sophisticated systems are provided with a system for controlling the movement based on environmental sensors and connected to mechanisms actuated by electric or hydraulic cylinder gear motors. The rotation of the blades is regulated according to the environmental conditions, i.e. solar radiation, the force of the wind or presence of clouds. Regulation may also occur according to functions programmed through a time calendar.
  • Such a screening system is known from DE 202005008622U1 .
  • the movement of the sun louver solely allows regulating the inclination thereof with respect to a vertical axis, but it does not allow performing other types of movements which could have an impact on the surface exposed to the incident solar radiation.
  • the use of a lesser number of sun louvers but having a considerable dimension with respective installation and management costs could be provided for.
  • the technical problem on which the present invention is based is that of providing a new solar radiation screening system by means of movable sun louvers having structural and functional characteristics such to allow regulating the amount and quality of light upon the variation of the hours of the day but reducing the number of sun louver elements required for the purpose, thus overcoming the drawbacks of the solutions currently proposed by the prior art.
  • Another object of the present invention is that of providing a solar radiation screening system that is compatible with the architecture, and in particular with the facade, of the building for which it is intended.
  • a further object of the invention is that of providing a solar radiation screening system capable of always conferring a different aspect to the building on which it is installed as the hours of the day progress.
  • each sun louver is capable of telescopically increasing the screening surface.
  • the abovementioned blades are also partly traversed by the incident light radiation.
  • the technical drawback is overcome by a system of the previously indicated type and characterised in that at least one of said sun louver elements comprise a pair of blades parallel to each other and slidably mounted one on the other so as to achieve a greater or lesser extension of the exposed surface of the sun louver.
  • the sun louver elements comprise blades partly traversed by the incident light radiation.
  • the blades are obtained by means of a close-mesh grating or by means of a thick netting or even by means of a perforated plate.
  • the invention also regards a sun louver element for solar radiation screening systems and of the type intended to be mounted with other elements of the same type near windows of a building and rotatably supported on a horizontal axis parallel to the other elements and at a predetermined distance from said windows, characterised in that it comprises a pair of blades parallel to each other and slidably mounted one on the other so as to achieve a greater or lesser extension of the exposed surface of the sun louver.
  • a solar radiation screening system 1 provided according to the present invention is indicated in its entirety with 1.
  • the system 1 is capable of being applied outside near windows 4 of a building 2 and comprises a plurality of movable sun louver elements 3 supported in a parallel relation along horizontal axes in predetermined relation spaced from each other and from said windows 4.
  • the system 1 is particularly indicated for tall and lean buildings such as flats or skyscrapers with facades 5 almost entirely enclosed by perimeter windows 4.
  • the invention can also be applied on public and/or residential buildings of any type or size, even pre-existing ones provided with normal windows.
  • the building 2 is a cylindrical or a polygonal base tower with a high number of sides, for example an octagon or a dodecagon, and comprises perimeter facades 5 enclosed by large windows 4 extended from the floor to the ceiling of each floor as shown for example in the section of figure 8 .
  • Each movable element 3 incorporated in the system 1 is structured with a pair of elongated rectangular-shaped blades or panels 6, 7, i.e. blades or panels in which the longitudinal extension is considerably greater than the lateral one, for example by a ratio of at least 4:1, or greater.
  • the blades 6, 7 lie on planes parallel to each other and they are slidably mounted one on the other.
  • a sliding device 10, to be described in detail hereinafter, for adjusting the mutual moving away or approaching of the blades 6, 7, still with parallel planes, so as to achieve a greater or lesser extension of the exposed surface 8 of the sun louver 3 is provided for. Due to this solution, the surface 8 of the sun louver 3 exposed to the incident light radiation varies in a substantially telescopic manner.
  • the blades 6, 7 are not entirely opaque or, in other words, they are partly traversed by the incident light radiation.
  • each blade is made by using a close-mesh grating or a thick netting.
  • the blades 6, 7 may be obtained by means of a perforated plate, i.e. a plate provided with a plurality of small through holes distributed regularly. This solution allows reducing heat radiation and allows a greater amount of light energy.
  • the components of the sun louver 3 are preferably made of metal material; however, other materials can be used for the blades 6, 7 or for parts of the sliding device 10.
  • each blade 6, 7 has a plate-like longitudinal edge 11, 12 extended perpendicularly to the laying plane of the respective blade 6, 7 and which confers a drawer-like configuration to each one of them.
  • transverse stiffening ribs 9 which are regularly distributed on the surface 8 and extended from one longitudinal edge to the other are also provided for.
  • the particular perforated structure of the blades 6, 7 makes the sun louver 3 capable of providing a screening filter having greater or lesser intensity depending on the overlapping percentage of the blades. Therefore, in the configuration of figure 2 A , in which the blades 6, 7 are completely overlapped, and which shall be referred to as "closed”, allows obtaining an almost complete screening with considerable reduction of the lighting radiation passing through the sun louver.
  • the building 2 is perceived differently depending on the relative position of the two blades of each sun louver and the arrangement thereof varies depending on the hours of the day and depending on the facades of the building, more or less hit by the incident light radiation.
  • the building 2 in its entirety appears to an external observer always differently as the hours of the day progress, or upon variation of the climatic conditions which have an impact on the light radiation.
  • the slides 14, 18 are C-shaped.
  • the rail 13 is formed by a pair of S-shaped sections 19, 19' and made integral with each other arranged facing each other in predetermined relation spaced so that there is a substantially T-shaped interstice 16 therebetween.
  • a respective slide 14 or 18 is integral with a corresponding smaller side of the blades 6, 7.
  • guides 14 each associated to the opposite smaller sides of the blade 16 can be identified as upper guides, while the guides 18 associated to the opposite smaller sides of the blade 7 can be identified as lower guides.
  • the upper guides 14 are received in the upper part of the interstice 16 of the rail 13, substantially in the head part of the T-shaped interstice 16.
  • the lower guides instead slide outside the rail 13 surrounding the lower and narrower portion of the rail.
  • Wheels 20 for facilitating sliding are provided for inside the guides 14, 18.
  • a gear wheel 15 part of a rack gear is advantageously housed, internally and centrally with respect to the rail 13, in the interstice 16.
  • a tooth 21 conjugated to the wheel 15 of the rack gear is provided at the bottom of each guide 14, 18.
  • the wheel 15 is integral with a sleeve or hub 23 projecting laterally and from opposite parts of the sun louver 3.
  • a rotation of the wheel 15 causes an equal and opposite kinematic action on the upper slides 14 and on the lower slides 18 which are actuated mutually moving away and approaching each other obtaining a translation of the respective blades 6, 7 in the direction of the arrow F of figure 3 .
  • Motorised means for driving the angular excursion of the gear wheel 15 by rotatingly actuating the hub 23 integral therewith are provided.
  • Such means are not represented in the drawing in that they are of the conventional type and they can be provided as an electric step motor mounted on board the sun louver 3 or housed laterally with respect thereto in a recess of the perimeter upright 24 of the building 2.
  • Such further motorised means provide for an electric step motor which actuates a shaft 25 connected to output and control signals coming from an electronic device in which data and information regarding the ideal inclination according to the latitude and depending on the hour of the day of a given season of the year are memorised.
  • the shaft 25 traverses the hub 23 and it further passes with limited clearance through a hole 27 obtained centrally in the gear wheel 15.
  • the end of the shaft 25 is centrally made integral with the rail 13 so that a rotation of the shaft 25 causes a direct and corresponding angular excursion of the rail 13, and of the entire sun louver 3, with respect to vertical axis.
  • the shaft 25 essentially coincides with the axis for supporting the sun louver 3 which can thus be oriented around such axis.
  • the shaft 25 and the hub 23 can be made integral so that the rotation of the first causes an analogous rotation of the gear wheel 15 and a corresponding relative sliding of a blade 6 on the other blade 7.
  • FIG. 8 and 9 show in a section on a vertical plane how the interior spaces inside the building 2 appear near the perimeter windows provided with the screening system of the present invention.
  • FIG. 9 An operative condition which occurs when the sun is on the southern side of the building 2 at about 70° on the zenith is illustrated in figure 9 instead; the sun louvers 3 are inclined in such a manner to be substantially perpendicular to the incident light radiation offering the maximum screening possible to the windows 4 of the building 2, with the blades 6, 7 totally open.
  • the screening system of the present invention can be installed by providing aligned units of sun louvers 3, as shown in figures 6 and 7 .
  • the overall movement of the sun louvers 3 can be achieved by connecting the driving shafts 25 to each other by means of interconnection joints.
  • the various components of the system 1 or of the sun louver 3 can be made using different types of materials; for example metal materials such as aluminium or zinc-plated or painted steel or, more economically, synthetic plastic material such as PVC, which has the advantage of preventing overheating due to solar radiation.
  • the invention overcomes the technical drawback and achieves various advantages the first of which definitely lies in the fact that the screening system of the present invention requires a lesser number of sun louver elements with respect to the prior art solutions given that the slidable double blades of each sun louver can substantially double the extension of the exposed surface of the sun louver during the operative step.
  • system of the present invention becomes an important component of the overall aesthetic properties of the building which, as previously indicated, can assume a different aspect from one facade to the other to an external observer.
  • photovoltaic cells for generating electric energy sufficient for moving the screening system can be housed in the sun louver 3.
  • shape and the profiles of the blades of the sun louvers can be selected according to their aesthetic properties or according to their capacity to support the action exerted by the wind.
  • the movement of the sun louver elements allows calibrating the orientation according to the current external conditions. This allows optimising the entry of the solar radiation so as to intercept the high rays of the summer sun but allow the penetration of the low winter radiation.
  • the system of the present invention facilitates the regulation of the microclimate inside the building, improving the heat comfort of the occupants thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Blinds (AREA)

Claims (10)

  1. Sonnenstrahlungabschirmungsystem (1) mit beweglichen Sonnenlamellenelementen (3) des Typs, der geeignet ist, an Fenstern (4) eines Gebäudes (2) angebracht zu werden und eine Vielzahl der beweglichen Sonnenlamellenelemente (3) umfasst, die in paralleler Relation mit einem vorbestimmten Abstand entlang horizontaler Achsen und im einem vorbestimmten Abstand von den Fenstern (4) gelagert sind, dadurch gekennzeichnet, dass mindestens eines der Sonnenlamellenelemente ein Paar von Lamellen (6, 7) umfasst, die parallel zueinander angeordnet sind und von denen eines (6) auf dem anderen (7) verschiebbar angeordnet ist, um eine größere oder kleinere Ausdehnung der exponierten Oberfläche (8) des Sonnenlamellenelements (3) zu erreichen.
  2. Abschirmungssystem nach Anspruch 1, dadurch gekennzeichnet, dass die Sonnenlamellenelemente (3) Lamellen (6, 7) umfassen, die teilweise von der einfallenden Lichtstrahlung passiert werden.
  3. Abschirmungssystem nach Anspruch 2, dadurch gekennzeichnet, dass die Lamellen (6, 7) mittels eines engmaschigen Gitters oder mittels eines dichten Netzes oder sogar mittels einer perforierten Platte erhalten werden.
  4. Abschirmungssystem nach Anspruch 1, dadurch gekennzeichnet, dass jede Lamelle (6, 7) auf zugehörigen Schlitten (14, 18) angeordnet ist, die auf einer Schiene (13) verschiebbar sind, die einteilig mit der jeweiligen Tragachse des Sonnenlamellenelements (3) ausgebildet ist, wobei Zahnradgetriebemittel (15, 21) zum Einstellen des gegenseitigen Verschiebens der Schlitten (14, 18) und der zugehörigen Lamellen (6, 7) vorgesehen sind.
  5. Abschirmungssystem nach Anspruch 1, dadurch gekennzeichnet, dass die maximale Ausdehnung der Lamellen (6, 7) dem Abstand zwischen den Sonnenlamellenelementen (3) entspricht.
  6. Abschirmungssystem nach Anspruch 4, dadurch gekennzeichnet, dass es motorisierte Mittel zum unabhängigen Drehen des Sonnenlamellenelementes (3) um die horizontale Achse und zum Drehen der Zahnradgetriebemittel umfasst.
  7. Abschirmungssystem nach Anspruch 4, dadurch gekennzeichnet, dass es eine Motorwelle (25) umfasst, die einteilig mit der Schiene (13) und koaxial mit den Tragachsen ausgebildet ist, wobei mehrere Einheiten von Sonnenlamellenelementen (3) zueinander ausgerichtet miteinander mittels Verbindungsgelenken der Motorwellen verbunden sind.
  8. Sonnenlamellenelement (3) für Sonnenstrahlungabschirmungssysteme des Typs, der vorgesehen ist, um mit anderen Elementen (3) desselben Typs an Fenstern (4) eines Gebäudes (2) befestigt und drehbar auf einer horizontalen Achse gelagert zu werden, die parallel zu den anderen Elementen (3) und in einem vorbestimmten Abstand von den Fenstern (4) angeordnet ist, dadurch gekennzeichnet, dass es ein Paar von Lamellen (6, 7) umfasst, die parallel zueinander angeordnet sind und von denen eines (6) auf dem anderen (7) verschiebbar angeordnet ist, um eine größere oder geringere Ausdehnung der exponierten Oberfläche (8) des Sonnenlamellenelements (3) zu erreichen.
  9. Sonnenlamellenelement nach Anspruch 8, dadurch gekennzeichnet, dass die Lamellen (6, 7) mittels eines engmaschigen Gitters oder mittels eines dichten Netzes oder sogar mittels einer perforierten Platte erhalten werden.
  10. Sonnenlamellenelement nach Anspruch 8, dadurch gekennzeichnet, dass jede Lamelle (6, 7) auf zugehörigen Schlitten (14, 18) angeordnet ist, die auf einer Schiene (13) verschiebbar sind, die einteilig mit der jeweiligen Achse zum Tragen des Sonnenlamellenelements (3) ausgebildet sind, wobei Zahnradgetriebemittel (15, 21) zum Einstellen des gegenseitigen Verschiebens der Schlitten (14, 18) und der zugehörigen Lamellen (6, 7) vorgesehen sind.
EP10015817A 2009-12-21 2010-12-20 Sonnenschutzsystem mit beweglichen Lamellen Not-in-force EP2336479B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2009A002250A IT1397519B1 (it) 2009-12-21 2009-12-21 Sistema schermante a frangisole mobili avente struttura perfezionata.

Publications (2)

Publication Number Publication Date
EP2336479A1 EP2336479A1 (de) 2011-06-22
EP2336479B1 true EP2336479B1 (de) 2012-09-05

Family

ID=42312976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10015817A Not-in-force EP2336479B1 (de) 2009-12-21 2010-12-20 Sonnenschutzsystem mit beweglichen Lamellen

Country Status (2)

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EP (1) EP2336479B1 (de)
IT (1) IT1397519B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011000249U1 (de) * 2011-02-02 2011-04-21 Knippers Helbig Gmbh Stufenlos verformbare Lamellen
ZA201702185B (en) * 2016-07-20 2018-05-30 Navus Consulting Cc Slat for a blind and blind formed therefrom
CN107386546A (zh) * 2017-08-11 2017-11-24 安徽鸿路钢结构(集团)股份有限公司 一种钢结构自动收缩雨棚
CN107366501A (zh) * 2017-08-31 2017-11-21 夏颖 一种储能窗帘
ES2952145A1 (es) * 2022-03-21 2023-10-27 Codeval Aluminium Sl Pérgola de lamas giratorias

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636615A1 (de) * 1996-09-10 1998-03-12 Werner Dipl Ing Isfort Schwenkbare Sonnenblende für Glasdächer
FR2812675B1 (fr) * 2000-08-07 2003-06-27 Philippe Mangeard Dispositif de toiture a lames avec aeration
DE202005008622U1 (de) * 2005-05-31 2005-09-29 Bonrath, Marcus Sonnen-, Sicht- und/oder Blendschutzlamelle und Tragkonstruktion mit einer derartigen Lamelle
FR2903715A1 (fr) * 2006-07-11 2008-01-18 Francois Seyller Dispositif d'etancheite, de verrouillage, de translation et de butee pour les toitures a ensoleillement modulable constituees de deux couches de claires-voies superposees
EP1939388A3 (de) * 2006-12-19 2016-09-07 Hunter Douglas Industries B.V. Lamelle

Also Published As

Publication number Publication date
IT1397519B1 (it) 2013-01-16
ITMI20092250A1 (it) 2011-06-22
EP2336479A1 (de) 2011-06-22

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