EP3059377B1 - Store vénitien avec un élément structurel formant un flux d'air - Google Patents

Store vénitien avec un élément structurel formant un flux d'air Download PDF

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Publication number
EP3059377B1
EP3059377B1 EP15161360.1A EP15161360A EP3059377B1 EP 3059377 B1 EP3059377 B1 EP 3059377B1 EP 15161360 A EP15161360 A EP 15161360A EP 3059377 B1 EP3059377 B1 EP 3059377B1
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EP
European Patent Office
Prior art keywords
slats
forming
venetian blind
slat
airflow
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.)
Active
Application number
EP15161360.1A
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German (de)
English (en)
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EP3059377A1 (fr
Inventor
Ignas SLAPKAUSKAS
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.)
Uab "saules Vejo Aruodai"
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Uab "saules Vejo Aruodai"
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Publication of EP3059377A1 publication Critical patent/EP3059377A1/fr
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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
    • E06B9/38—Other details
    • E06B9/386—Details of lamellae
    • 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
    • E06B9/38—Other details
    • E06B9/384—Details of interconnection or interaction of tapes and lamellae

Definitions

  • the invention relates to fixed or adjustable coverings of openings in buildings, specifically horizontal venetian blinds capable of not only proper control of sunlight and heat entry into the building, but also of forming increased airflow. Airflow is formed and directed upwards by means of forming slats.
  • coverings curtains, vertical or horizontal blinds, etc.
  • coverings which provide visual contact of the internal premises with the outside (windows, glass doors, etc.)
  • glare which is promptly tried to avoid by using coverings of openings.
  • reduction of sunlight also reduces entry of solar heat into the room, leading to the increased heating costs during the cold season.
  • coverings of openings may reduce cooling costs by restricting entry of solar heat into the premises.
  • Efficient management of luminous energy and thermal energy is a complex task. Seeking achievement of both of these goals (to properly manage both sunlight energy and thermal energy), various technical solutions are being created and patented.
  • Venetian blinds serve to achieve two main goals of heat flow management: a) the first one: when there is excess of heat in the room, venetian blinds have to reflect as much solar heat back to the outside as possible thus preventing excess solar heat from entering the room; b) the second one: when there is a lack of heat in the room, venetian blinds must ensure the maximum ingress of solar heat into the room. In both cases, venetian blinds must also efficiently perform the function of management of flow of light.
  • Conventional venetian blinds consist of a plurality of slats placed one above another and interconnected by a cord system that holds the slats and can change the slate tilt angle with respect to window glass plane.
  • the cord system consists of at least two vertical cords with a multitude of cords attached to both vertical cords.
  • the cords connecting the said vertical cords are usually slightly longer than the slat width, the quantity of the said cords between the two vertical cords corresponds to the quantity of slats; the slats are mounted and attached to them.
  • the two vertical cords and a multitude of interconnecting cords perpendicular to the vertical cords resemble a ladder by their layout.
  • the third vertical cord can be placed in parallel between the two vertical cords passing through the slats to ensure stability of the slats in the cord system.
  • the cords are made of a material (such as woven nylon, cotton threads, rubber, plastic, etc.) that provides great flexibility of the said system, possibility to roll up and retract, simultaneously providing sufficient strength to hold slats for a long time.
  • a single venetian blind system incorporates several cord systems (ladders); these are attached along the slats at certain intervals to ensure that the slats do not sag under their own weight.
  • the said cord system with the attached slats is connected to the mechanism that is located at the top of the entire venetian blind system and that facilitates and ensures the control of the venetian blind system.
  • One of the main components of venetian blinds is slats. Standard sizing of slats is as follows: thickness ranges from decimal fractions of a millimetre to several centimetres; width ranges from several millimetres to dozens of centimetres; length ranges (depending on window width) from several centimetres to several metres. These dimensions may be different in exceptional cases.
  • the patent US8307602B2 published on 13 November 2012 , describes an invention where grate is mounted exterior to a window.
  • the grate is made of transparent material and consist of segments shaped as a cube without two opposite planes; these segments are attached to each other at the surfaces of their planes.
  • the geometrical structure of the grate resembles a honeycomb.
  • the thickness of the grate and tilt angle of internal walls are selected so that in summer, when the sun is high above the horizon, the direct sunlight cannot pass the grate and enter the room. In winter, when the sun is not high above the horizon, sunlight passes the grate and thereby can contribute to heating the room.
  • Patent application US4593738A published on 10 June 1986 , describes a venetian blind system comprised of the slats of two types that differ in their optical transparency. Slats of different types are placed one above another, planes of slats in certain cases can be parallel and in contact with each other. Slats of different types are mounted so that they can be controlled independently. Venetian blinds of this type are intended for efficient control of light entering the room but they have no advantages in control of thermal energy flow compared to traditional venetian blinds. The same shortcoming is inherent to another invention described in document US20110259529A1, published on 27 October 2011 .
  • Patent US6192963B1 (27 February 2001 ) describes a device for positioning and control of slats of venetian blinds. It also mentions the method for attachment of slats to slat-controlling cords: horizontal cords are placed between two main vertical cords and venetian blind slats are put on or attached to these cords to obtain ladder-shaped reliable system for control and positioning of slats.
  • the said method for attachment of slats is very popular, however we could not find any application of this method for mounting of heat flow-forming slats.
  • US5918657A (06 July 1999 ) provides a method for attachment of slats, which does not require holes in slats. Slats are attached to holding cords with clips or clamps, which grip and hold the slat on its both flat sides, and loops that are attached to vertical holding cords. This method for attachment is also not used for attachment of heat flow-forming slats.
  • Venetian blinds are known from FR 2 939 829 A1 (18 June 2010 ) and US 2005/150614 A1 (14 July 2005 ).
  • This invention according to claim 1 is aimed not only at efficient control of solar heat and light ingress into the building, but also at forming and intensifying airflow passing the plane of venetian blinds.
  • Conventional venetian blind system is improved with airflow forming and upwardly directing slats.
  • These forming slats can be implemented as a separate structural element attached to slat-holding vertical cord or they can be formed within the slats themselves.
  • openings for air to go upwards are made in the forming slats and the bent plane, which is obtained when making openings, serves as an airflow guide. Forming slats of both types can be used in combination to form airflow.
  • Slats of venetian blinds can be covered with material that increases absorption and release of heat at one side and with material that reflects solar heat on the other.
  • Elements forming airflow direct air upwards towards slats above, where air gets even warmer resulting in the increased speed of going upwards.
  • the venetian blind system equipped with this invention produces more intensive flow of warm air compared to conventional venetian blind system, which results in increased air circulation in the area around the venetian blinds.
  • Greater airflow allows for more efficient use of solar heat for heating the room, reduces fogging of window pane, and reduces possibility of mould forming on the window reveals.
  • the venetian blind system equipped with this invention is easy to manufacture, one of the implementation options is easy to install in the existing venetian blind system.
  • This invention also presents designs that enable application of new methods for attachment of forming slats as separate structural elements.
  • This invention utilizes slats (or their forms) of different purposes, which serve at least two major functions: a) management of flow of light, as usual; b) airflow forming and management, which is novel.
  • both functions can be performed by either a single slat, shaped in a special way, or a system of two different slats.
  • slat (1) refers to a slat used in conventional venetian blinds and applied in related art and serving to manage flow of light; another term is forming slat (2) that denotes a venetian blind system component as an individual structural element that forms and controls airflow (this is novel).
  • bent-up forming slat (3) There is yet another structural element located in the said slat (1) and made by making an opening in the slat (1) and bending a part of the slat (1) up - this will be called a bent-up forming slat (3) (remark: here the expression "bent-up” does not mean direction of bending of the slat (1), it means that the process is finished, because the slat (1) itself can be bent in both directions: to up or to down).
  • Slat (1) ( Fig. 1) (Fig. 2 ) in accordance with this invention can be made of metal or other material of high thermal conductivity.
  • one side/plane of it is covered with heat-absorbing layer (such as titanium oxide particles (Tinox) or similar), and the other side/plane of the slat is covered with material that efficiently reflects solar heat. If it is desired to increase air temperature in the room, then heat-absorbing side of the slat is directed against the sun, and if temperature in the room is too high, then heat-reflecting side of the slat is directed against the sun.
  • heat-absorbing layer such as titanium oxide particles (Tinox) or similar
  • the said slat (1) can be additionally covered with materials providing different functionalities: anti-virus and anti-bacterial material (such as silver nano particles); material intensifying release of accumulated solar heat to the outside (such as silicon dioxide); electricity-producing (photovoltaic) material; material emitting light in the dark (fluorescent), or materials providing other functionality.
  • anti-virus and anti-bacterial material such as silver nano particles
  • material intensifying release of accumulated solar heat to the outside such as silicon dioxide
  • electricity-producing (photovoltaic) material material emitting light in the dark (fluorescent), or materials providing other functionality.
  • slats (1) taking the form of " ⁇ " (slightly straightened “S") at their cross-sections.
  • ⁇ lightly straightened “S”
  • S lightly straightened
  • Such a form features the most efficient absorption of solar energy and it is sufficiently firm.
  • the cross-section shape may differ.
  • Angle between slat (1) plane and window glass plane can be easily changed, just like in conventional venetian blinds.
  • the temperature of slats (1) starts rising.
  • Slats (1) begin releasing the accumulated thermal energy into the surrounding air, the air gets hot and starts rising.
  • most of the air enters the room and the remaining part of the air rises towards the slats (1) that are above and warms up the air some more.
  • the present invention utilizes the upward air flow forming slats (2). These forming slats (2) direct air flow towards the slats (1) above; their purpose is to reduce the quantity of air that enters the room directly.
  • the heat flow forming slat (2) in accordance with the present invention is intended for directing air heated by slats (1) vertically upwards, towards the other slats (1) that are above in order to minimize the quantity of heated air released into the room instantly and direct air to the upper part instead.
  • the said forming slat (2) can be embodied as a separate structural element or made as a component of slats (1); it is also possible to have an embodiment with separate forming slats (2) used for forming vertical air flow together with their component made within slats: a bent-up forming slat (3) ( Fig. 3 ) ( Fig. 4 ).
  • Forming slat (2) as a separate structural component resembles a slat (1) in its geometrical dimensions. Horizontal cross-section takes shape of "(". In some embodiments the lower part of the said form can be slightly bent in the direction opposite to the direction of the whole incurvation.
  • Forming slat (2) can be made of optically transparent material (such as APET, PVH or polycarbonate), and for certain embodiments it can be made of material that does not distort the natural view.
  • Forming slat (2) can be covered just like slat (1): with the same supplemental materials performing different functions. Contrary to slats (1), forming slats (2) can also be covered with photochromic materials that change optical transparency level depending on the amount of incoming light. Forming slats (2) can come in various colours and decorated with pictures.
  • Inclination angle of forming slats (2) with respect to window plane is such that vertical air flow is formed most efficiently, it depends on geographical latitude (it may range from 5° to 45°).
  • Fig. 10 shows detailed multiple (three) embodiments of bent-up forming slats (3) made in the slats (1) by making apertures (17) there: on the left - view from the side, on the right - axonometric view.
  • This ladder-like structure holding slats (1) is comprised of horizontal cords (5) and vertical cords (8).
  • the number of the said horizontal cords (5) on one vertical cord (6) corresponds to the number of forming slats (2).
  • One more vertical cord (6) is attached to the other end of all the said attached horizontal cords (5).
  • Such a system comprises one more cord system that is also ladder-like.
  • three vertical cords and the plurality of interconnecting horizontal cords make up a system (7) that resembles double ladder connected at its longer borders.
  • Slats (1) are placed and attached in the cord system (7) part that is closer to the window plane, forming slats (2) are placed and attached in the cord system (7) part that is further away from window and facing the interior of the room.
  • the said three vertical cords are at their upper part connected to the venetian blind control mechanism.
  • Three vertical cord double ladder-like system (7) enables tilt functionality of slats (1) and forming slats (2), this is performed by raising and lowering corresponding vertical cords.
  • Second novel attachment method and design in accordance with the present invention Fitting of forming slats (2) as separate structural element without possibility to freely adjust tilt angle of all forming slats (2) and without possibility to raise and lower can be embodied in one of the several ways.
  • forming slats (2) are attached tilted in such angle that best ensures passage of hot air towards slats above (1) and then towards the upper part of venetian blind system, through which it enters the room.
  • Forming slats (2) are attached so that their plane angle in respect of window glass plane can be changed, however the change and locking of that angle by means of controls is not ensured.
  • Generally forming slats (2) form a single plane parallel to a window pane.
  • All of the above fixing elements mentioned in options a), b), c) and d) are attached to vertical cords (8) holding the slats (1).
  • Forming slats (2) are raised and lowered together with the slats (1). Fixing point must be such that the upper edge of the forming slat (2) is approximately midway between the slat (1) fixing points. If the upper edge of the forming slat (2) is close to the side of the slat (1), the clearance for airflow would be severely restricted, which may reduce the performance of venetian blind system.
  • Forming slats (2) are mounted on a vertical cord (8) at uniform distances; all forming slats (2) fixed to the vertical cord (8) comprise almost an integral plane when looking from the inside.
  • Airflow-forming structural elements may be formed in the slats (1) by forming an opening (17) or many openings.
  • the length of an opening (17) along the slat (1) may vary.
  • An opening (17) or many openings are formed along the entire length of a slat (1). If a slat (1) mounting method requires, excluding the places, where the slat (1) is attached to the cord system; also leaving an integral slat (1) area at the ends of it to ensure structural rigidity of a slat (1).
  • Opening width - opening (17) is formed at the long side of the slat (1), which is further from the window pane (when the slat (1) is in a horizontal position) towards the room.
  • Both embodiments are preferred - when the said shaped surface (3) is bent up towards the upper slats (1), as well as towards the slats (1) located below. Through the formed opening (17), warm air can go towards the upper slats (1) and the bent-up forming slat (3) directs the airflow upwards.
  • Exemplary constructions can be embodied using the following:
  • the said venetian blind system is fitted inside the room, in the openings (cavities) (or covering the openings, rather than installing the blinds inside the opening), which have a direct optical contact with the outside environment (e.g. window opening, glass door opening, etc.).
  • the maximum efficiency of heating the premises is achieved when installing venetian blind systems in the openings, oriented to the south. In the openings oriented to the north, the efficiency of heat accumulating and radiating venetian blinds is the lowest.
  • blinds can be fitted to the existing windows, doors (or other) structures without changing anything there.
  • the main difference between the venetian blinds with forming slats and the conventional venetian blinds is their design, which absorbs solar energy more efficiently and ensures more intense airflow around the blind area by means of forming and controlling airflow.
  • Airflow greater than with conventional blinds allows for grater air circulation in the wall opening, which may reduce the possibility of mould forming and fogging of the window pane.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)

Claims (7)

  1. Store pour ouvertures de bâtiment vitrées destinées à être placées dans une pièce, comprenant:
    lamelles (1) conçues pour obstruer ou détourner la lumière du soleil et la chaleur dans la pièce;
    un système de câble (4) destiné à maintenir les lamelles (1) en place, les inclinant à un angle souhaité, les soulevant partiellement ou complètement en direction d'un mécanisme de commande;
    un mécanisme de commande auquel le système de câble (4) est fixé et qui permet le transfert des fonctions de commande de l'utilisateur aux lattes (1);
    caractérisé en ce que
    dans la lamelle (1) elle-même, un élément structurel formant un écoulement est formé en formant une ouverture (17) à travers laquelle l'écoulement d'air monte vers les lamelles supérieures (1),
    à travers lequel le flux d'air monte jusqu'aux lamelles supérieures (1), et lors de la formation de l'ouverture (17), une partie de la surface est pliée par la lamelle de base (1) qui forme une lamelle moulable pliable (3).
  2. Store vénitien selon la revendication 1, caractérisé en ce qu'une lame formant un écoulement d'air (2) est formée en tant qu'élément structurel séparé qui est fixé à un cordon vertical (8) du système de store.
  3. Store vénitien selon la revendication 2, caractérisé en ce que les lames formant l'air (2) sont fixées au système de stores en formant des boucles (9) fixées au cordon vertical (8) qui maintient le store dans la direction de l'intérieur de l'espace ; les lames formant l'air (2) sont guidées par les boucles (9).
  4. Store vénitien selon la revendication 2, caractérisé en ce que les lames formant l'air (2) sont fixées au système de stores au moyen d'au moins une boucle souple (10) fixée au cordon vertical (8) tenant le store ;
    une autre corde verticale (12) passe à travers la boucle (10) et une ouverture dans la lame de formation d'air (2).
  5. Store vénitien selon la revendication 2, caractérisé en ce que les lamelles formant l'air (2) sont fixées au système de stores en passant un crochet (13) en matériau résistant fixé au cordon vertical (8), qui guide le store à travers l'ouverture dans la lamelle formant l'air (2) est valable.
  6. Store vénitien selon la revendication 2, caractérisé en ce que les lamelles formant l'air (2) sont fixées au système de store à l'aide d'un support (14), qui peut être fixé sans connaissances et compétences particulières sur le cordon vertical (8) du système de store par serrage, après quoi des lattes (2) sont fixées à l'autre extrémité du support (14).
  7. Store vénitien selon la revendication 1, caractérisé en ce que la forme de la section transversale des lamelles (1) avec la lamelle moulable recourbée (3) se rapproche de la forme de "∼" et ressemble à la forme d'une lettre "S" légèrement lissée.
EP15161360.1A 2015-02-23 2015-03-27 Store vénitien avec un élément structurel formant un flux d'air Active EP3059377B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LT2015011A LT6327B (lt) 2015-02-23 2015-02-23 Žaliuzių konstrukcinis elementas, formuojantis oro srautą, ir to elemento tvirtinimo būdai

Publications (2)

Publication Number Publication Date
EP3059377A1 EP3059377A1 (fr) 2016-08-24
EP3059377B1 true EP3059377B1 (fr) 2019-08-28

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EP15161360.1A Active EP3059377B1 (fr) 2015-02-23 2015-03-27 Store vénitien avec un élément structurel formant un flux d'air

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EP (1) EP3059377B1 (fr)
LT (1) LT6327B (fr)
WO (1) WO2016135576A1 (fr)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577619A (en) 1983-09-08 1986-03-25 Howe Jr William C Energy efficient window and skylight assemblies
DE3414354A1 (de) * 1984-04-16 1985-10-24 Warema Renkhoff Gmbh & Co Kg, 8772 Marktheidenfeld Jalousie, insbesondere verdunkelungsjalousie, mit wendekordeln zum aufhaengen der lamellen
US4593738A (en) 1985-01-25 1986-06-10 Chi Yu Simon S Venetian blind
US4880044A (en) 1987-04-01 1989-11-14 Bw-Usa, Inc. Spacer devices
US5184659A (en) 1991-11-21 1993-02-09 Hector Alcocer Sun resistant, foldable window shade
US5845694A (en) * 1995-08-07 1998-12-08 Cohen; Leone A. Horizontal venetian blind
US5918657A (en) 1996-09-17 1999-07-06 Tuzmen; Zeki Holeless window blind
US5743319A (en) * 1997-01-07 1998-04-28 Christopherson; Herman P. Window blind with safety pull cord
US6192963B1 (en) 1999-09-30 2001-02-27 Dong-Rong Chen Slat actuating and positioning device for venetian blinds
TWM251922U (en) * 2004-01-14 2004-12-01 Nien Made Entpr Co Ltd Slat structure of venetian blind
FR2939829B1 (fr) * 2008-12-17 2011-07-01 David Harboun Store type venitien.
WO2011023218A1 (fr) 2009-08-24 2011-03-03 Detea, S.A. Enceinte pour façades avec fonctions de climatisation
US8307602B2 (en) 2009-09-04 2012-11-13 Cochran Jr Horace J Grate sunshade
US20110259529A1 (en) 2010-04-22 2011-10-27 The Regents Of The University Of California Window System Useful for Blocking Direct Sunlight

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3059377A1 (fr) 2016-08-24
LT6327B (lt) 2016-10-25
WO2016135576A1 (fr) 2016-09-01
LT2015011A (lt) 2016-08-25

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