EP2628887B1 - Dispositif à écran - Google Patents

Dispositif à écran Download PDF

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Publication number
EP2628887B1
EP2628887B1 EP13154512.1A EP13154512A EP2628887B1 EP 2628887 B1 EP2628887 B1 EP 2628887B1 EP 13154512 A EP13154512 A EP 13154512A EP 2628887 B1 EP2628887 B1 EP 2628887B1
Authority
EP
European Patent Office
Prior art keywords
screen
guide profile
guide
intermediate elements
screen device
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
EP13154512.1A
Other languages
German (de)
English (en)
Other versions
EP2628887A1 (fr
Inventor
Bart Pieter Jules Abeel
Thierry Luc Veys
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.)
Renson Sunprotection Screens NV
Original Assignee
Renson Sunprotection Screens NV
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 Renson Sunprotection Screens NV filed Critical Renson Sunprotection Screens NV
Priority to PL13154512T priority Critical patent/PL2628887T3/pl
Publication of EP2628887A1 publication Critical patent/EP2628887A1/fr
Application granted granted Critical
Publication of EP2628887B1 publication Critical patent/EP2628887B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding 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
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • 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
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • E06B9/54—Roller fly screens

Definitions

  • the present invention relates to a screen device comprising:
  • Such a screen is usually used to screen off a doorway or window opening or to cover a terrace.
  • the screen guide profiles wear more quickly closer to the screen roller than further away from the screen roller, as the screen is moved up and down more often in the section closer to the screen roller than the section further away from the screen roller.
  • the screen will pass close to the screen roller more often than further away from it, as the screen is not lowered completely every time. If, in addition, the screen is tensioned laterally, this problem is further exacerbated. It is possible to consider tensioning the screen to a lesser degree in order to limit this type of wear, but this will lead to the drawbacks which are associated with a non-tensioned screen.
  • the screen will flap in the wind and sag.
  • a screen device according to the preamble of claim 1 is disclosed by DE 10 2006 020573 A1 .
  • the screen guide profiles are made up of two parts, after an incision has been made, and are connected by a back.
  • the flanges of the upper part of the screen guide profiles narrow in a conical tapering manner.
  • the screen guide profiles are provided in the securing rail with more play at their upper side in order to ensure that a rolled-up screen will slip out of these screen guide profiles less easily.
  • the tension acting on the screen is also slightly reduced locally, closer to the screen roller.
  • the flanges of the upper part of the screen guide profiles become so narrow, that they are at risk of breaking.
  • the flanges breaking or being completely removed at the location of the upper part of the screen guide profiles leads to a risk of breakage at the location of the back, in particular with changing temperatures and loads.
  • the upper part of the screen guide profiles, above the back, is only a few cm long, so that a notch or bend is required to make this part bend.
  • a screen in such screen devices is usually provided with flexible thickenings on its lateral sides, such as, for example a half zip, in order to improve guidance thereof in the screen guide profile.
  • these flexible thickenings cause the screen to become caught more easily in the screen guide profile at the location of this bend.
  • a further drawback is the fact that the bend renders fitting of the screen guide profile in a securing rail (lateral guide) more difficult.
  • the screen guide profile will also wear more quickly at the location of the bend.
  • a screen device comprising:
  • the screen guide profiles on either side of the screen will also be able to come closer together locally here, without said screen guide profiles having to be provided with a bend for this purpose.
  • the tension on the screen is lower closer to the screen roller than further away from the screen roller. If the lateral sides of the screen are provided with flexible thickenings which are accommodated in the screen guide profiles in a guiding manner, the compressive stress between said flexible thickenings and the screen guide profile is lower on the side of the screen roller.
  • the tension on the screen is thus reduced locally where wear is greatest, without the known drawbacks of the screen device from JP 2004- 308170 A .
  • there is no risk of breakage at the location of a back as no incision has to be made in a screen guide profile.
  • the distance across which the screen guide profile can bend can be much greater than the upper part of the screen guide profile of the screen device from JP 2004-308170A .
  • the inward bending of the screen guide profile can also be much greater than the thickness of its flanges.
  • the greatest abovementioned size of the intermediate elements can be selected to be a multiple of the thickness of the flanges.
  • the depth of the slot in the securing rail will have to be modified to this end.
  • At least part of said intermediate elements is connected to the corresponding shoulders of the securing rail.
  • these may be fixedly connected to the shoulders of the securing rail, for example, if this securing rail is produced by means of extrusion, by providing intermediate elements as upright edges on the securing rail having the greatest abovementioned size along the entire lateral side and to then partly mill these off.
  • the at least one securing rail of a screen device may comprise a collar at the ends of its upright sides, away from the bottom, which collar partly delimits the slot, wherein the corresponding intermediate element forms part of an upright edge which extends towards the bottom along said collar.
  • intermediate elements is connected to the flanges of the corresponding screen guide profile.
  • these intermediate elements may, for example, be fixedly connected to the flanges of the screen guide profile, if the screen guide profile is produced by means of extrusion, by first providing intermediate elements, for example, as upright edges on the flanges having the greatest abovementioned size along the entire lateral side and to then partly mill these off.
  • the flanges themselves are not milled off, as with the screen device from JP 2004-308170 A . It is also, for example, possible to provide separate intermediate elements on the screen guide profile in a detachable manner.
  • the screen guide profile is always produced as a single piece, in which case it remains uninterrupted along its entire length.
  • the flanges of such a screen guide profile are preferably also produced as a single piece and uninterrupted along the entire length of the screen guide profile. Only one single screen guide profile is preferably provided for each lateral side of the screen as well.
  • the intermediate elements may also be provided as separate elements which are not attached to the securing rail or to the screen guide profile. Such separate intermediate elements then each extend preferably along the entire length of the securing rail and/or the screen guide profile, so that said size thereof is always the desired size at every location.
  • these are preferably attached to the securing rail and/or to the screen guide profile in order to prevent that, during use, said size of the intermediate elements starts to deviate from the desired size at a certain height.
  • the intermediate elements is designed to be resilient.
  • these intermediate elements can simultaneously also serve to suspend the screen guide profile with respect to the securing rail and/or to dampen, so that no separate elements have to be provided for this purpose.
  • Sprung intermediate elements can, for example, also be provided in the screen guide profile and/or in the securing rail in a readily (detachably) attachable manner.
  • the screen guide profile and/or the securing rail may, for example, be provided with fastening slots in which these intermediate elements can be fixed, due to their suspending properties.
  • the at least one screen guide profile of a screen device according to the present invention is designed to be flexible, so that the shape of this screen guide profile can automatically adapt to the shape of the corresponding intermediate elements.
  • this screen guide profile can adjoin these intermediate elements everywhere, without itself exhibiting a bend. Any stresses which occur can thus be transferred between these components of the screen device in an optimum manner.
  • the movement of the lateral side of the screen in the screen guide profile will still be carried out smoothly, due to the corresponding screen guide profile being designed to be flexible, thus preventing it from becoming stuck.
  • the wear of the screen guide profile is also more limited than if the screen guide profile itself were to be provided completely with a bend.
  • the flexibility of the screen guide profile is selected as a compromise between sufficient flexibility, enabling it to adapt quickly in order to bear against the intermediate elements, and sufficient rigidity in cross section, preventing the lateral side of the screen from breaking free therefrom.
  • the size of the intermediate elements of a screen device according to the invention preferably varies in such a manner that, when the screen is unrolled, the at least one screen guide profile extends substantially according to a continuous and curved line. In this way, the guide of the screen has a continuous, gradual transition.
  • the tension on the screen will also be built up gradually, so that the screen is not subjected to sudden changes in tension, provided there are no external loads during normal use.
  • the size of the intermediate elements in the mounted position viewed in the direction of the shoulders towards the flanges, preferably remains substantially the same over at least half the length of the corresponding securing rail, adjacent to the end which is arranged away from the screen roller in the mounted position.
  • a particularly preferred embodiment of a screen device comprises a bottom slat which is fitted on the side of the screen opposite the side where the screen is rolled up and unrolled, comprises one or more lath guide elements which are attached to the ends of the bottom slat and comprises a lath guide profile on each lateral side of the screen into which one or more corresponding lath guide elements can be fitted in order to guide the bottom slat during the rolling/unrolling movement of the screen, with the screen guide profile and the lath guide profile being arranged behind one another on the same side of the screen, viewed in a direction at right angles to the plane of the unrolled screen.
  • the object of the present invention is furthermore also achieved by providing a terrace covering which comprises a screen device according to the present invention.
  • the screen device (1) illustrated in Figure 1 comprises a screen (3) which can be rolled up onto and unrolled from a screen roller (2). On one side, the screen (3) is attached to the screen roller (2) to this end.
  • the screen (3) is provided on both its lateral sides with a half zip (11) which forms a flexible thickening (11) of said lateral sides.
  • a half zip (11) which forms a flexible thickening, such as, for example, a string which is provided in the lateral edge of the screen, etc.
  • the flexible thickening (11) of each lateral side is guided in a cavity (12) (see Figure 2 ) in a screen guide profile (4), as can be seen in Figures 6, 7 and 9-12 .
  • the screen (3) extends through an access opening (13) to said cavity (12) (see Figure 2 ).
  • the screen guide profiles (4) of the screen device (1) are accommodated in turn in corresponding slots (8) in lateral guides (5) which also serve as securing rails (5), as can be seen in Figures 1-3, 6-7, 9-12 .
  • These securing rails (5) extend virtually at right angles to the screen roller (2), on both lateral sides of the screen (3).
  • Each lateral guide (5) comprises a bottom (6) and two upright sides (7a, 7b) which delimit said slot (8). At the ends of the upright sides (7a, 7b), away from the bottom (6), each lateral guide (5) furthermore comprises a collar (10a, 10b) which partly delimits the slot (8).
  • Said collar (10a, 10b) is provided with upright edges (9a, 9b, 16a, 16b) which extend substantially parallel to the upright sides (7a, 7b) towards the bottom (6).
  • Said upright edges (9a, 9b, 16a, 16b) comprise shoulders (9a, 9b) behind which the flanges (14a, 14b) of the screen guide profile (4) partly extend.
  • the upright edges (9a, 9b, 16a, 16b) adjacent to the shoulders (9a, 9b) comprise intermediate elements (16a, 16b).
  • intermediate elements (16a, 16b) may be provided in the first embodiment of the lateral guide (5), as illustrated in Figures 2-3 and 6-7 .
  • the intermediate elements (16a, 16b) of this first embodiment may be formed integrally with the lateral guide (5) by, for example, producing said lateral guide (5) by means of extrusion, in which case the upright edges (9a, 9b, 16a, 16b) are designed to be of maximum height and are, for example, milled off in order to form the desired intermediate elements (16a, 16b).
  • the intermediate elements (16a, 16b) in this embodiment have a length which is equal to the length of the lateral guide (5) and said intermediate elements (16a, 16b), for well over half their length, adjacent to the end which is arranged away from the screen roller (2) in the mounted position, extend substantially parallel to the bottom (6) and said intermediate elements (16a, 16b), towards the screen roller (2), gradually extend further and further from the bottom (6).
  • the intermediate elements (16a, 16b) from the second embodiment, as illustrated in Figures 8-12 do not form an integral part of the lateral guide (5), but are fitted in a fastening slot of said lateral guide (5) as separate elements (16a, 16b).
  • the intermediate elements (16a, 16b) are much shorter than the length of the lateral guide (5), with several intermediate elements (16a, 16b) in each case being arranged at an intermediate distance apart, distributed along the length of the lateral guide (5).
  • the intermediate elements (16a, 16b) are arranged at a shorter distance from each other in order to be able to support the screen guide profile (4) as efficiently as possible, so that this profile (4) follows a curved line which, with an unrolled screen (3), is as continuous as possible.
  • the intermediate elements (16a, 16b) can be arranged further apart. In this case, the lower four intermediate elements (16a, 16b) which are of equal size together extend along more than half of the length of the lateral guide (5).
  • the screen guide profiles (4) in turn are designed to be flexible, so that these are able to adjoin the shape of the intermediate elements (16a, 16b) of the lateral guides (5) in both embodiments as securely as possible, extend substantially according to a continuous and curved line when the screen (3) is unrolled, as can be seen in the figures.
  • the ends of the screen guide profiles (4) are closer to each other closer to the screen roller (2), so that the screen (3) is subjected less to tension closer to the screen roller (2) and is subjected less to wear. Due to the fact that the screen guide profiles (4) run parallel to each other along more than half of their length, the screen (3) can be kept under sufficient tension to prevent it from flapping or sagging, etc.
  • the intermediate elements (16a, 16b) are of flexible design, so that they can serve to dampen the movements of the screen guide profile (4) as damping elements (15a, 15b) at the same time.
  • said intermediate elements (16a, 16b) are sufficiently elastic to be able to perform a damping action, yet sufficiently rigid to support screen guide profile (4) in a satisfactory manner.
  • damping elements (15a, 15b) are fitted in a fastening slot of the lateral guide (5) and extend between the collar (10a, 10b) of the securing rail (5) and the flanges (14a, 14b) of the screen guide profile (4).
  • a bottom slat (17) is fitted, which has been shown in Figures 6 and 7 .
  • guide wheels (18) are attached which are fitted in a lath guide profile (19) in a guiding manner in order to guide the bottom slat (17) during the rolling/unrolling movement of the screen (3).
  • the screen guide profile (4) and the lath guide profile (19) on the same side of the screen (3) are arranged one behind the other, viewed in a direction at right angles to the plane of the unrolled screen (3).
  • the lath guide profile (19) is of rigid design and extends substantially along a straight line in its longitudinal direction.
  • the path travelled by the guide wheels (18) of the bottom slat (17) is substantially rectilinear, while the flexible lateral thickening (11) of the screen (3) is guided along a smooth curved line in the screen guide profile (4). If a tensioning system is fitted in such a screen device, in which the screen is kept under tension in the unrolling direction by means of a tensioning belt or tensioning string or tensioning cable which is attached to an end of the bottom slat at its one end, then this tensioning belt or tensioning string or tensioning cable can continue to run straight.
  • the illustrated screen device (1) may, for example, form part of a terrace covering used to cover a terrace.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Claims (10)

  1. Dispositif d'écran (1) comprenant :
    - un rouleau d'écran (2) ;
    - un écran (3) qui peut être enroulé sur ledit rouleau d'écran (2) et déroulé depuis celui-ci ;
    - un profilé de guidage d'écran (4) sur chaque côté latéral de l'écran (3) dans lequel le côté latéral correspondant de l'écran (3) peut être monté afin de guider ledit côté latéral lors du mouvement d'enroulement/de déroulement ; et
    - un rail de fixation (5) sur chaque côté latéral de l'écran (3), comprenant :
    - un fond (6) ;
    - deux côtés perpendiculaires (7a, 7b) qui délimitent une fente (8), dans laquelle le profilé de guidage d'écran (4) est monté dans la position installée ; et
    - un épaulement (9a, 9b) des deux côtés de la fente (8) ;
    dans lequel le profilé de guidage d'écran (4) comprend deux ailettes (14a, 14b) s'étendant chacune, dans la position installée, au moins partiellement derrière un épaulement correspondant (9a, 9b) du rail de fixation (5) ;
    le dispositif d'écran (1) comprenant des éléments intermédiaires (16a, 16b) qui, dans la position installée, s'étendent au moins partiellement entre les épaulements (9a, 9b) d'au moins un rail de fixation (5) et les ailettes correspondantes (14a, 14b) d'au moins un profilé de guidage d'écran (4), caractérisé en ce que les éléments intermédiaires (16a, 16b) sont configurés de telle sorte que leur taille, dans la position installée, mesurée dans la direction allant des épaulements (9a, 9b) vers les ailettes (14a, 14b), est inférieure à un emplacement plus proche du rouleau d'écran (2) qu'elle ne l'est à un emplacement plus éloigné du rouleau d'écran (2) et varie de telle manière que cette taille augmente dans la direction de déroulement de l'écran (3).
  2. Dispositif d'écran (1) selon la revendication 1, caractérisé en ce qu'au moins une partie des éléments intermédiaires (16a, 16b) est raccordée aux épaulements (9a, 9b).
  3. Dispositif d'écran (1) selon l'une des revendications précédentes, caractérisé en ce que le ou les rails de fixation (5) comprennent un rebord (10a, 10b) au niveau des extrémités des côtés perpendiculaires (7a, 7b), à distance du fond (6), ledit rebord délimitant partiellement la fente (8), et en ce que l'élément intermédiaire correspondant (16a, 16b) fait partie d'un bord perpendiculaire (9a, 9b, 16a, 16b) qui s'étend vers le fond (6) le long dudit rebord (10, 10b).
  4. Dispositif d'écran (1) selon l'une des revendications précédentes, caractérisé en ce qu'au moins une partie des éléments intermédiaires (16a, 16b) est raccordée aux ailettes (14a, 14b).
  5. Dispositif d'écran (1) selon l'une des revendications précédentes, caractérisé en ce qu'au moins une partie des éléments intermédiaires (16a, 16b) est conçue pour être élastique.
  6. Dispositif d'écran (1) selon l'une des revendications précédentes, caractérisé en ce que le ou les profilés de guidage d'écran (4) sont conçus pour être flexibles.
  7. Dispositif d'écran (1) selon l'une des revendications précédentes, caractérisé en ce que ladite taille des éléments intermédiaires (16a, 16b) varie de telle sorte que, lorsque l'écran (3) est déroulé, le ou les profilés de guidage d'écran (4) s'étendent essentiellement suivant une ligne continue et courbe.
  8. Dispositif d'écran (1) selon l'une des revendications précédentes, caractérisé en ce que ladite taille des éléments intermédiaires (16a, 16b) dans la position installée, en observant dans la direction des épaulements (9a, 9b) vers les ailettes (14a, 14b), reste essentiellement la même sur au moins la moitié de la longueur du rail de fixation correspondant (5), à proximité de l'extrémité qui est disposée à distance du rouleau d'écran (2) dans la position installée.
  9. Dispositif d'écran (1) selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'écran (1) comprend une latte inférieure (17) qui est montée sur le côté de l'écran (3) opposé au côté sur lequel l'écran (3) est enroulé et déroulé, comprend un ou plusieurs éléments de guidage de lame (18) qui sont attachés aux extrémités de la latte inférieure (17) et comprend un profilé de guidage de lame (19) sur chaque côté latéral de l'écran (3) dans lequel un ou plusieurs éléments de guidage de lame (18) correspondants peuvent être montés afin de guider la latte inférieure (17) lors du mouvement d'enroulement/de déroulement de l'écran (3), le profilé de guidage d'écran (4) et le profilé de guidage de lame (19) étant disposés l'un derrière l'autre du même côté de l'écran (3), en observant dans une direction à angle droit vis-à-vis du plan de l'écran déroulé (3).
  10. Dispositif de recouvrement de terrasse, comprenant un dispositif d'écran (1) selon l'une des revendications précédentes.
EP13154512.1A 2012-02-14 2013-02-08 Dispositif à écran Active EP2628887B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13154512T PL2628887T3 (pl) 2012-02-14 2013-02-08 Urządzenie ekranowe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2012/0087A BE1021452B1 (nl) 2012-02-14 2012-02-14 Scherminrichting

Publications (2)

Publication Number Publication Date
EP2628887A1 EP2628887A1 (fr) 2013-08-21
EP2628887B1 true EP2628887B1 (fr) 2016-01-13

Family

ID=47631380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13154512.1A Active EP2628887B1 (fr) 2012-02-14 2013-02-08 Dispositif à écran

Country Status (4)

Country Link
EP (1) EP2628887B1 (fr)
BE (1) BE1021452B1 (fr)
ES (1) ES2562108T3 (fr)
PL (1) PL2628887T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2977540B1 (fr) * 2014-07-22 2017-08-16 Schenker Storen Ag Guidage par rail pour un dispositif d'ombrage, notamment marquise en tissu
NL2014333B1 (nl) * 2015-02-20 2016-10-13 Lss Lewens Sonnenschutz-Systeme Gmbh & Co Kg Rolscherm.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3841765B2 (ja) * 2003-04-03 2006-11-01 セイキ住工株式会社 巻取り式スクリーン装置
DE102006020573A1 (de) * 2006-05-01 2007-11-15 Mallmann, Hans-Jürgen Flexibles Abdeckmittel wie Markise oder Verdunkelung mit vertikaler- und horizontaler Spannung des Abdeckmittels
US20120012260A1 (en) * 2010-07-16 2012-01-19 Leonard Elinson Retractable shade assembly with adjustable side guides

Also Published As

Publication number Publication date
PL2628887T3 (pl) 2016-05-31
BE1021452B1 (nl) 2015-11-25
EP2628887A1 (fr) 2013-08-21
ES2562108T3 (es) 2016-03-02

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