EP2440734A1 - Dispositif d'ombrage - Google Patents

Dispositif d'ombrage

Info

Publication number
EP2440734A1
EP2440734A1 EP10786462A EP10786462A EP2440734A1 EP 2440734 A1 EP2440734 A1 EP 2440734A1 EP 10786462 A EP10786462 A EP 10786462A EP 10786462 A EP10786462 A EP 10786462A EP 2440734 A1 EP2440734 A1 EP 2440734A1
Authority
EP
European Patent Office
Prior art keywords
cloth
shade device
unrolled
bar
upper bar
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.)
Withdrawn
Application number
EP10786462A
Other languages
German (de)
English (en)
Other versions
EP2440734A4 (fr
Inventor
Ronny Kogsta
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.)
Erco Systems AB
Original Assignee
Erco Systems AB
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
Priority claimed from SE0950444A external-priority patent/SE534129C2/sv
Application filed by Erco Systems AB filed Critical Erco Systems AB
Publication of EP2440734A1 publication Critical patent/EP2440734A1/fr
Publication of EP2440734A4 publication Critical patent/EP2440734A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • 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
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2405—Areas of differing opacity for light transmission control

Definitions

  • the present invention relates to a shade device, comprising a cloth or a fabric which may be unrolled from a bar on which the cloth/fabric is rolled-up in an initial stage so that the cloth or fabric thus may cover a window.
  • a shade may be designed such that a lower region of the cloth of the shade has a comparatively low permeability to light while an upper region of the cloth has a higher permeability to light.
  • the cloth may be rolled up and unrolled, respectively, both from an upper and from a lower bar. In this way, one may vary the share of the unrolled surface of the cloth which constitutes a cloth with a low permeability to light.
  • This previously known shade thus permits that one may adjust the amount of light being let in through a window at the same time as one may choose in the first place to block light in the lower region of a window. In this way, the problem of disturbing reflexes can be reduced or avoided.
  • the object of the invention is achieved by a shade device for windows, which shade device comprises an upper bar on which a cloth is arranged to be unrolled or rolled up.
  • the cloth is partly permeable to light and it has an outer end.
  • the shade device comprises also a lower bar and the outer end of the cloth is arranged to run about the lower bar.
  • the shade device is arranged to draw the outer end of the cloth upwards from the lower bar at the same time as the cloth is unrolled from the upper bar. In this way, the cloth may be caused to overlap itself and form a region with a reduced permeability to light.
  • the shade device may comprise one or several flexible lifting elements connected to the outer end of the cloth.
  • the flexible lifting element/s is/are arranged such that it/they can be rolled up at the same time as the cloth is unrolled so that the cloth is thereby caused to overlap itself.
  • the shade device comprises two flexible lifting elements, which are arranged on the same upper bar as the cloth or on a part which is fixedly connected to the upper bar.
  • the flexible lifting elements then have a length that is less than the length of the cloth.
  • the flexible lifting elements have a length that is half the length of the cloth.
  • the lower bar may be partly surrounded by a tube with a slot through which slot the cloth may run.
  • a cover against wear on the cloth may possibly be arranged along the slot.
  • Fig. 1 shows, in a perspective view, an upper region of the shade device of the invention.
  • Fig. 2 shows, in a perspective view, a lower region of the shade device of
  • Fig. 3 shows, from the front, a region of a shade cloth according to an embodiment.
  • Figs. 4 to 6 show, from the side and in cross-section, a procedure at the unrolling the shade cloth.
  • Figs. 7 to 9 show, from the front, the same procedure as in Figs. 4 to 6.
  • Fig. 10 shows, in principle and from the side, an alternative embodiment.
  • Fig. 11 shows, in principle and from the side, an additional alternative embodiment.
  • a shade device 1 is shown, which is intended to cover a window (not shown).
  • the shade device comprises an upper bar 3, on which a cloth 4 is arranged such that it can be unrolled and rolled up.
  • the upper bar 3 may be journalled in a bracket 15, which in turn may suitably be directly or indirectly mounted to a fixed structure, e.g. a wall of a building.
  • the cloth 4 is partly permeable to light.
  • the cloth 4 may be divided into regions 6 with a low permeability to light and regions 5 with a high permeability to light.
  • the regions 6 with a low permeability may consist of a dense cloth or fabric
  • the regions 5 with a high permeability may consist of a loose-woven cloth. It shall be understood that embodiments are conceivable where the cloth over its entire surface has a fabric with an essentially uniform density.
  • the shade device 1 further comprises a lower bar 8.
  • the cloth has an outer end 7, i.e. the free end which is unrolled from the upper bar 3.
  • the outer end 7 may be arranged as a loop around a profile bar 16 giving stability to the outer end 7 of the cloth.
  • the outer end 7 of the cloth 4 is essentially parallel to the upper bar 3.
  • the other end of the cloth 4 is normally attached to the upper bar 3.
  • the outer end 7 of the cloth 4 is arranged such that it runs about the lower bar 8.
  • the lower bar 8 may be a heavy tube which through its weight tends to stretch the cloth 4 in a direction downwards.
  • the lower bar 8 can then be said to rest in a fold in the cloth 4 (see e.g. Fig. 1 or Fig.4). Further, the shade device 1 is arranged such that it can draw the outer end 7 of the cloth 4 upwards from the lower bar 8 at the same time as the cloth 4 is unrolled from the upper bar 3. Thereby, the cloth 4 may overlap itself and form a region 18 with a reduced permeability to light (see Fig. 9). It should be understood that the lower bar 8 can move together with the outer end 7 of the cloth 4 down to the lowermost position. In the lowermost position, the lower bar 8 can remain in the same position, while the cloth 4 continues to be unrolled so that the outer end 7 of the cloth 4 moves in relation to the lower bar 8. This sequence may also be performed in the opposite direction when for instance the degree of overlapping is to be reduced or when one wants to roll up the cloth entirely so that light may pass through the window without being stopped by the shade device.
  • the shade device is provided with flexible lifting elements 9 which are connected to the outer end 7 of the cloth 4.
  • the flexible lifting elements 9 may consist of cords, strings or straps, for instance.
  • the flexible lifting element/s 9 can be unrolled from and rolled up on the upper bar 3.
  • a flexible lifting element 9 is arranged to be unrolled from or rolled up on a reel 17.
  • the reel is fixedly connected to the upper bar 3 and may be considered as a part of the upper bar 3.
  • the invention may be practised without any special reel 17 and the flexible lifting elements 9 may instead be rolled directly on an outer end of the upper bar 3 that may have the same diameter along its entire length.
  • the reel 17 may suitably have a groove (not shown in the figures) in order easier to receive the flexible lifting element 9. It is understood that such a reel 17 may sit on each end of the upper bar 3.
  • the reels 17 are arranged outside the region of the upper bar 3 on which the cloth is rolled.
  • the cloth 4 and the flexible lifting elements 9 are thus arranged to be rolled up from different parts of the upper bar 3.
  • each flexible lifting element 9 may be arranged to run through a guide 14 which is arranged on the bracket 15.
  • the flexible lifting elements 9 may be rolled up on their respective reels 17 with the same direction of rotation as the cloth 4 has on the upper bar 3.
  • the cloth 4 is unrolled from the upper bar 3
  • the flexible lifting elements 9 will thus be unrolled.
  • the end 7 of the cloth 4 will then be lowered together with the low bar 8, about which the cloth 4 runs.
  • the lower bar 8 is thus movable together with the end 7 of the cloth 4.
  • the flexible lifting elements 9 have, however, a length which is less than the length of the cloth 4.
  • the reels 17 will continue to rotate in the same direction of rotation as the upper bar 3, as the reels 17 are firmly connected to the upper bar 3.
  • the continued rotation of the reels 17 will result in the flexible lifting elements 9 beginning to be rolled up onto the reels 17 but with a rolling-up direction which is opposite their original rolling-up direction.
  • the flexible lifting elements 9 will begin to lift the outer end 7 of the cloth 4 while the cloth 4 is still fed from the upper bar 3.
  • the cloth 4 will move around the lower bar 8, so that the cloth 4 is caused to overlap itself. It is realized that, in this stage, the lower bar 8 is no longer moving together with the end 7 of the cloth 4.
  • the flexible lifting elements have a length which is half or about half the length of the cloth 4.
  • the lower bar 8 may be partly surrounded by a tube 10 with a slot 11, through which slot 11 the cloth 4 runs.
  • a cover 12 against wear of the cloth 4 may be arranged along the slot 11 but embodiments without any such a cover 12 are also conceivable.
  • the procedure is the following.
  • the shade is in a position when essentially the entire cloth is rolled up on the upper bar 3. This position is shown in Fig. 4 and in Fig. 7.
  • This may take place by conventional means which are as such well known and need not be illustrated further.
  • one may use a cord or a chain which is connected directly or indirectly to the upper bar 3 in such a way that the upper bar 3 is turned when one draws the chain or the cord.
  • the cloth 4 will be unrolled.
  • the reels 17 are firmly connected to the upper bar, also these will turn and also the flexible lifting elements 9 are unrolled.
  • the lower bar then follows the cloth 4 downwards.
  • the cloth 4 has reached its lowermost position, as may be seen from Fig. 5 and Fig. 8. If the shade device has been correctly adapted to a certain window, then the entire or essentially the entire window is covered by the cloth 4. The amount of light entering through the window is reduced. If one then wants to further reduce the amount of light entering through the lower region of the window, this may be realized by quite simply continuing to turn the upper bar 3.
  • the flexible lifting elements 9 may not be unrolled any longer. If, in this position, one continues to turn the upper bar 3 so that the cloth 4 continues to be unrolled, the flexible lifting elements 9 will therefore begin to be rolled up again as has been explained above. In this way, the cloth 4 will begin to overlap itself, as may be seen from Fig. 6 and Fig. 9, so that a region 18 with a reduced permeability to light is created. It is realized that the procedure described may be run backwards, when one instead wants to increase the amount of light to be let through.
  • the cloth may be designed such that the open or permeable regions 5 have essentially the same height as the regions 6 with a dense fabric, e.g. 5 centimetres. Through small movements of the fabric, one may then achieve different degrees of overlapping as regions with dense fabric may be caused to overlap partly or entirely regions with looser fabric.
  • Fig. 10 an alternative embodiment is shown schematically, which functions in essentially the same way as the embodiment described above, but with the difference that the flexible lifting elements 9 are arranged to be rolled up or unrolled on/from at least one rotatably journalled component 9 which is separate from the upper bar 3.
  • the flexible lifting elements 9 are arranged to be rolled up or unrolled on/from at least one rotatably journalled component 9 which is separate from the upper bar 3.
  • one may be forced to arrange a separate drive for the rotatable component 19, possibly one may have a separate twist grip.
  • Fig. 11 an additional alternative embodiment is schematically shown, where the lower bar 8 is fixedly arranged in relation to the upper bar 3.
  • non-flexible lifting elements are conceivable.
  • stiff lifting elements are conceivable, which are arranged to run in a groove in a wall.
  • the cloth may be rolled up entirely so that all light enters, the cloth may also be partly unrolled, it may be unrolled to the lowermost position without any overlapping having occurred and the cloth may further be unrolled to a varying degree of overlapping.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Abstract

La présente invention concerne un dispositif d'ombrage (1) pour des fenêtres. Le dispositif comprend une barre supérieure (3), sur laquelle un tissu (4) est agencé pour être déroulé ou enroulé. Le tissu (4) est partiellement perméable à la lumière. Le tissu est agencé pour aller autour d'une barre inférieure (8) et pour être tiré vers le haut pour que, de cette manière, le tissu puisse se chevaucher. Une extrémité extérieure du tissu (4) peut être fixée à des brides flexibles qui sont enroulées sur des bobines sur la barre supérieure et qui possèdent une longueur inférieure à celle du tissu.
EP10786462.1A 2009-06-10 2010-06-10 Dispositif d'ombrage Withdrawn EP2440734A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0950444A SE534129C2 (sv) 2009-06-10 2009-06-10 Rullgardinsanordning
SE0950514 2009-07-01
PCT/SE2010/050651 WO2010144045A1 (fr) 2009-06-10 2010-06-10 Dispositif d'ombrage

Publications (2)

Publication Number Publication Date
EP2440734A1 true EP2440734A1 (fr) 2012-04-18
EP2440734A4 EP2440734A4 (fr) 2014-03-19

Family

ID=43309106

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10786462.1A Withdrawn EP2440734A4 (fr) 2009-06-10 2010-06-10 Dispositif d'ombrage

Country Status (2)

Country Link
EP (1) EP2440734A4 (fr)
WO (1) WO2010144045A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2910726B1 (fr) * 2014-02-19 2016-04-27 K.E. & Kingstone Co., Ltd. Dispositif de store de réglage de lumière et son procédé de montage
JP6473313B2 (ja) * 2014-10-15 2019-02-20 立川ブラインド工業株式会社 遮蔽装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281022A (en) * 1940-08-01 1942-04-28 Cavanaugh Thomas Joseph Shade construction
WO2005098162A2 (fr) * 2004-04-08 2005-10-20 Mhz Hachtel Gmbh & Co. Kg Store a contre-traction, a interrupteur de fin de course unique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2568623A1 (fr) * 1984-08-03 1986-02-07 Technigroup Dispositif de store a deploiement substantiellement horizontal
FR2720099B1 (fr) * 1994-05-20 1996-08-14 Ates Sa Store comprenant une toile déroulable d'un rouleau supérieur et renvoyée à la partie inférieure du store par une barre de renvoi escamotable automatiquement.
US6189592B1 (en) * 1998-03-19 2001-02-20 Harmonic Design, Inc. Roll up shade doubled fabric having patterns thereon
SE524182C2 (sv) * 2002-03-13 2004-07-06 Ronny Kogsta Rullgardinssystem, förfarande för montering av rullgardin samt monteringsfärdig rullgardinssats
KR100754441B1 (ko) * 2005-07-05 2007-09-03 (주)한국윈텍 멀티 쉐이드장치

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281022A (en) * 1940-08-01 1942-04-28 Cavanaugh Thomas Joseph Shade construction
WO2005098162A2 (fr) * 2004-04-08 2005-10-20 Mhz Hachtel Gmbh & Co. Kg Store a contre-traction, a interrupteur de fin de course unique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2010144045A1 *

Also Published As

Publication number Publication date
EP2440734A4 (fr) 2014-03-19
WO2010144045A1 (fr) 2010-12-16

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