EP1071861B1 - Dispositif de freinage et agencement de store de fenetre comportant ledit dispositif de freinage - Google Patents

Dispositif de freinage et agencement de store de fenetre comportant ledit dispositif de freinage Download PDF

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Publication number
EP1071861B1
EP1071861B1 EP99911652A EP99911652A EP1071861B1 EP 1071861 B1 EP1071861 B1 EP 1071861B1 EP 99911652 A EP99911652 A EP 99911652A EP 99911652 A EP99911652 A EP 99911652A EP 1071861 B1 EP1071861 B1 EP 1071861B1
Authority
EP
European Patent Office
Prior art keywords
screening arrangement
cord
arrangement according
braking
window screening
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.)
Expired - Lifetime
Application number
EP99911652A
Other languages
German (de)
English (en)
Other versions
EP1071861A1 (fr
Inventor
Ove Kold
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.)
VKR Holding AS
Original Assignee
VKR Holding AS
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 VKR Holding AS filed Critical VKR Holding AS
Publication of EP1071861A1 publication Critical patent/EP1071861A1/fr
Application granted granted Critical
Publication of EP1071861B1 publication Critical patent/EP1071861B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling

Definitions

  • the present invention relates to a window screening arrangement, said screening arrangement being intended for mounting in a window aperture defined between a top member, a bottom member and two side members, and comprising a body of screening material which in an unscreening position is rolled up, collapsed or pleated at the top member and which in a free end is connected with at least one hollow bar extending substantially in parallel with the top and bottom members between the side members substantially throughout the width of the window aperture, and a parallel guidance system comprising two cords in reverse mounting, each cord being passed from a first fixture means at the top member along one side member, through the hollow bar and along the other side member to a second fixture means at the bottom member, a cord tightening means being provided in connection with at least one fixture means, in which the braking device comprises at least one braking member for retaining the hollow bar in at least one screening position.
  • an arresting device may eg. consist of side rails positioned at the window aperture side members and comprising a number of downwards facing recesses for engagement with the bar or pins connected therewith.
  • FR patent application No. 2 615 240 and US patent No. 785,806 represent one category of braking devices, in which the braking force of the braking device is adjusted by tightening the cords of the parallel guidance system.
  • operation of the screening arrangement may be difficult, as the braking force has to be surmounted in order to move the screening arrangement between the top and bottom members of the window aperture. This is particularly the case in roller blinds comprising a roller bar, the spring-bias of which the braking force has to counteract.
  • US patent No. 612,606 represents another category in which friction shoes at each end of the bottom bar cooperate with the side members of the aperture in order to retain the bar in the desired position. As the friction shoes are biassed by springs placed in the bar, the latter have to be deactivated in order to move the screening arrangement. Although operational comfort is provided once the friction shoes have been retracted from their frictional engagement with the side members, this arrangement is complicated and thus costly and cumbersome to produce and mount.
  • EP patent No. 0 725 885 discloses a roller blind comprising a braking device of the initially stated kind which alleviates many of the disadvantages of the prior art arrangements.
  • the braking device of this document comprises a friction member mounted in the bottom bar, in which at least one reversing member provides for at total change of the direction of the corresponding cord.
  • a window screening arrangement is characterized in that said at least one braking member of the braking device is mounted substantially stationarily on at least one of said cords and is intended, in a screening position, to engage with said hollow bar.
  • the braking device and consequently the entire window screening arrangement is simpler and cheaper to manufacture and mount.
  • the braking device may be provided separately, possibly together with the parallel guidance system. It is thus easy to substitute parts of the screening arrangement and it is possible to mount eg. the braking device subsequently on existing screening arrangements not being provided with such a device. Eventually, an indication of the desired screening position is obtained at the moment of engagement between the braking member or members and the bar, which may be advantageous in order to attract the user's attention eg. when the screening arrangement has reached its bottom position to prevent further downwards movement of the screening arrangement.
  • each braking member is designed as a symmetrical body, the axis of symmetry of which is substantially parallel with the corresponding cord.
  • the braking member or members may be designed as hollow body for accommodation of the cord.
  • the braking device comprises at least one pair of braking members placed opposite each other at substantially the same distance from the top member of the window aperture.
  • the window screening arrangement is designed as a roller blind having a body of screening material in the form of a web 2.
  • the web 2 is in one end fastened to and, in the position shown, partially rolled up on a roller bar 1 placed at a top member 10a which together with a bottom member 10b and two side members 10c,10d defines a window aperture 10.
  • the web 2 is connected with a bottom bar 3 which extends substantially in parallel with the top and bottom members 10a and 10b between the side members 10c,10d substantially throughout the width of the window aperture 10.
  • the parallelism of the bottom bar 3 is secured by a parallel guidance system which comprises a pair of cords 4,5 mounted in reverse of each other as will be explained in the following.
  • the cords 4,5 are in one end fastened to a respective one of a first fixture means 7 and 6 situated at the top member 10a near or at the side members 10c and 10d, respectively. From the fixture means 7,6 the cords 4,5 are passed along a respective one of the side members 10c,10d and through the bottom bar 3, which is formed with a through-going hollowness. During the passage through the bottom bar 3, the cords 4,5 cross each other such that they on the other side are passed downwards along the opposite side members 10d,10c to a second fixture means 8 and 9, respectively.
  • Cord tightening means 14,13 are provided in connection with the first fixture means 7,6. In the embodiment shown each cord tightening means 14,13 comprises a spring connected with each of the fixture means 7,6 but may instead be provided as an elastic cord.
  • the screening arrangement In order to operate the screening arrangement from the initial position, ie. when the web 2 is completely rolled up on the roller bar 1, a pull is exerted on the bar 3 which moves downwards and is as described in the above kept in parallel with the top and bottom members 10a,10b. In a position, in which the window aperture is at least partially screened, the screening arrangement is arrested or parked in the desired position by means of a braking device as will be explained in the following.
  • the braking device comprises two braking members 11,12 mounted on the cords 4 and 5, respectively, opposite each other and substantially at the same distance from the top member 10a of the window aperture.
  • the braking member 12 is designed as a hollow cylindrical body mounted substantially stationarily on the cord.
  • the outer cross-sectional dimension of the body 12 is one to five, here approximately three, times the diameter of the cord 5 and the outer length of the body does not exceed the diameter of the cord multiplied by five, the length being preferably in the interval one to three times the cord diameter.
  • the outer dimensions of the body ensure that the cord 5, when moving the bar 3 downwards in the direction of the arrow A, is forced outwards in the direction of the arrow B towards the side member 10c of the window aperture.
  • the cord tightening means in this case the spring 13, ensures that the cord 5 yields to the load from the body 12.
  • the body 12 When moving the bar further downwards the body 12 is brought into engagement with the bar 3 to attain the position shown in Fig. 3 and the cord tightening means 13 pulls the cord 5 back to its normal position.
  • a user operating the screening arrangement has during the braking operation experienced a slightly increasing tension of the cord 5 after which the cord is relaxed, thus obtaining the desired indication of the screening position.
  • Fig. 4 shows a detachable connection between the braking member 21 and the cord 4 by means of a screw 20.
  • the connection could as well be performed by means of a spring-biassed catch engaging the cord or in any other way. From this Figure it further emerges that the body 21 is designed with rounded end portions in order to ease the engagement with the bar 3.
  • Fig. 5 an alternative embodiment of the braking member is shown as a spherical body 31.
  • the body 31 is inseparably connected to the cord 4 by means of moulding, gluing, heatshrinking or in any other way.
  • the parallel guidance system may as described in Applicant's international patent application published under No. WO98/32944 be provided in the form of a separate system for mounting on a window screening arrangement and comprising a hollow mounting bar for connection with the bottom bar, profile of strip at the free end of the screening body. It is clear that a braking device according to the invention may advantageously be delivered together with such a system.
  • an electrically operated driving device may be connected with the bottom or mounting bar of the window screening arrangement.
  • the window screening arrangement in the above embodiments is described as a roller blind, the invention is not limited to this kind of screening arrangement, and could eg. be a black-out curtain, a pleated blind or a Venetian blind.
  • the light imperviousness may be obtained by a flap, flange or sealing connected with the bottom or mounting bar.
  • the invention should not be regarded as being to limited to use with any particular kind of window, but may be used in all kinds of apertures or windows in the form of facade windows, roof windows, skylights etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Claims (12)

  1. Dispositif de store de fenêtre à monter dans une baie de fenêtre (10) définie entre une partie supérieure (10a), une partie inférieure (10b) et deux parties latérales (10c, 10d), et comprenant un corps (2) de matériau d'écran qui, dans une position non-couvrante, est enroulé, plié ou plissé à la partie supérieure (10a) et qui, dans un bout libre, est relié à au moins une barre creuse (3) s'étendant essentiellement parallèlement aux parties supérieures et inférieures (10a, 10b) entre les parties latérales (10c, 10d) essentiellement à travers la largeur de la baie de fenêtre, et un système de guidage parallèle comprenant deux cordons (4, 5) en montage inverse, chaque cordon étant dirigé depuis un premier moyen de fixation (7, 6) à la partie supérieure (10a) au long de l'une partie latérale (10c, 10d) à travers la barre creuse (3) et au long de l'autre partie latérale (10d, 10c) à un deuxième moyen de fixation (8, 9) à la partie latérale (10b), un moyen pour tendre les cordons (14, 13) étant pourvu en liaison avec au moins l'un moyen de fixation (7,6), et un mécanisme d'arrêt comprenant au moins un élément d'arrêt (11, 12; 21; 31) pour retenir la barre creuse (3) dans au moins une position d'occultation, caractérisé en ce qu'au moins un élément d'arrêt (11, 12; 21; 31) du mécanisme d'arrêt est monté essentiellement de manière stationnaire sur au moins l'un desdits cordons (4, 5) et est conçu, dans une position d'occultation, pour s'engager avec au moins ladite. une barre creuse (3).
  2. Dispositif de store de fenêtre selon la revendication 1, caractérisé en ce que chaque élément d'arrêt (11, 12; 21; 31) est formé comme un corps symétrique, dont l'axe de symétrie est essentiellement parallèle au cordon correspondant (4, 5).
  3. Dispositif de store de fenêtre selon les revendications 1 ou 2, caractérisé en ce que chaque élément d'arrêt (11, 12) est formé comme un corps creux pour recevoir ledit cordon (4, 5).
  4. Dispositif de store de fenêtre selon les revendications 1, 2 ou 3, caractérisé en ce que la forme extérieure du corps (11, 12; 21) est un cylindre ou un tronc de cône.
  5. Dispositif de store de fenêtre selon la revendication 4, caractérisé en ce que le cylindre (11, 12; 21) ou le tronc est pourvu de portions terminales arrondies.
  6. Dispositif de store de fenêtre selon l'une quelconque des revendications 1-3, caractérisé en ce que la forme extérieure du corps (31) est sphérique.
  7. Dispositif de store de fenêtre selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque élément d'arrêt (21) est relié de manière détachable au cordon correspondant (4).
  8. Dispositif de store de fenêtre selon la revendication 7, caractérisé en ce que l'élément d'arrêt (21) est relié au cordon correspondant (4) au moyen d'une vis (20) ou un cliquet à charge par ressort.
  9. Dispositif de store de fenêtre selon l'une quelconque des revendications 1-6, caractérisé en ce que chaque élément d'arrêt (31) est indissolublement relié au cordon correspondant (4) au moyen de moulage ou collage.
  10. Dispositif de store de fenêtre selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque élément d'arrêt (11, 12; 21; 31) présente une dimension de section extérieure qui est une à cinq, préférablement une à trois, fois plus grande que le diamètre du cordon (4, 5) et une longueur extérieure qui est inférieure au diamètre du cordon multiplié par cinq, préférablement un à trois.
  11. Dispositif de store de fenêtre selon l'une quelconque des revendications précédentes, caractérisé en ce que le mécanisme d'arrêt comprend au moins une paire d'éléments d'arrêt (11, 12; 21; 31) arrangés l'un opposé de l'autre à essentiellement la même distance de la partie supérieure (10a) de la baie de fenêtre.
  12. Dispositif de store de fenêtre selon l'une quelconque des revendications 1 à 11, caractérisé en ce que les moyens pour tendre les cordons (14, 13) sont dimensionnés si bien que les cordons (4, 5) sont tenus de manière tendue lors de l'opération.
EP99911652A 1998-04-17 1999-04-12 Dispositif de freinage et agencement de store de fenetre comportant ledit dispositif de freinage Expired - Lifetime EP1071861B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK199800536A DK176031B1 (da) 1998-04-17 1998-04-17 Kuglestop udformet som en arreteringsindretning for en vinduesafskærmning
DK53698 1998-04-17
PCT/DK1999/000206 WO1999054585A1 (fr) 1998-04-17 1999-04-12 Dispositif de freinage et agencement de store de fenetre comportant ledit dispositif de freinage

Publications (2)

Publication Number Publication Date
EP1071861A1 EP1071861A1 (fr) 2001-01-31
EP1071861B1 true EP1071861B1 (fr) 2003-03-19

Family

ID=8094656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99911652A Expired - Lifetime EP1071861B1 (fr) 1998-04-17 1999-04-12 Dispositif de freinage et agencement de store de fenetre comportant ledit dispositif de freinage

Country Status (11)

Country Link
EP (1) EP1071861B1 (fr)
JP (1) JP4302317B2 (fr)
AR (1) AR014994A1 (fr)
AT (1) ATE234994T1 (fr)
AU (1) AU3026799A (fr)
CZ (1) CZ298955B6 (fr)
DE (2) DE29923714U1 (fr)
DK (1) DK176031B1 (fr)
ES (1) ES2195553T3 (fr)
PL (1) PL198782B1 (fr)
WO (1) WO1999054585A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112013017280B1 (pt) 2011-01-06 2021-05-18 Hunter Douglas Industries B.V. rotor bobinado para o funcionamento de uma cobertura retrátil para uma abertura arquitetônica

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US785806A (en) * 1904-06-13 1905-03-28 Curtain Supply Co Curtain-fixture.
US2572847A (en) * 1948-02-19 1951-10-30 Adlake Co Cable operated curtain construction
FR2615240A1 (fr) * 1987-05-14 1988-11-18 Farnier & Penin Dispositif de store equilibre par des cables
DK32292D0 (da) * 1992-03-11 1992-03-11 Rasmussen Kann Ind As Rullegardin, navnlig til moerklaegning

Also Published As

Publication number Publication date
DK53698A (da) 1999-12-15
DE69906043T2 (de) 2004-02-19
JP2002512332A (ja) 2002-04-23
ES2195553T3 (es) 2003-12-01
ATE234994T1 (de) 2003-04-15
DE29923714U1 (de) 2001-02-15
EP1071861A1 (fr) 2001-01-31
DK176031B1 (da) 2006-01-02
AR014994A1 (es) 2001-04-11
CZ298955B6 (cs) 2008-03-19
WO1999054585A1 (fr) 1999-10-28
CZ20003841A3 (cs) 2001-07-11
DE69906043D1 (de) 2003-04-24
PL198782B1 (pl) 2008-07-31
PL343608A1 (en) 2001-08-27
JP4302317B2 (ja) 2009-07-22
AU3026799A (en) 1999-11-08

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