EP0500499A1 - Store - Google Patents

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Publication number
EP0500499A1
EP0500499A1 EP92810113A EP92810113A EP0500499A1 EP 0500499 A1 EP0500499 A1 EP 0500499A1 EP 92810113 A EP92810113 A EP 92810113A EP 92810113 A EP92810113 A EP 92810113A EP 0500499 A1 EP0500499 A1 EP 0500499A1
Authority
EP
European Patent Office
Prior art keywords
drawer
ladder
venetian blind
piece
frame
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.)
Granted
Application number
EP92810113A
Other languages
English (en)
French (fr)
Other versions
EP0500499B1 (de
Inventor
Marc Joseph Antoine Quezel Castraz
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.)
Somfy SA
Original Assignee
Somfy SA
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 Somfy SA filed Critical Somfy SA
Publication of EP0500499A1 publication Critical patent/EP0500499A1/de
Application granted granted Critical
Publication of EP0500499B1 publication Critical patent/EP0500499B1/de
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
    • E06B9/24—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
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • 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
    • E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
    • E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
    • E06B9/32—Operating, guiding, or securing devices therefor

Definitions

  • the subject of the present invention is a venetian blind comprising a winding shaft on which is mounted at least one winding drum on which is wound a lace fixed to the lower blade of the blind and passing through the other blades in their middle part, and a blade orientation mechanism comprising a pulley frictionally driving a flexible ladder whose ends of the strands are connected to two straps fixed to each of the edges of the blades to ensure the tilting of these blades in the closed position when the blind is fully extended , and a movable member resiliently positioned and subjected to the action of the lace under the effect of the traction exerted on the lace by the lower end blade, this mobile member controlling stop means keeping the blades in a first inclination when they are operative and authorizing the tilting of the blades in a second inclination when they are inoperative.
  • the movable member consists of a pusher mounted at the end of an elastic arm parallel to the axis of the pulley and bending under the pressure of the lace wound on the pulley.
  • This push-pull on a slide forming a retractable stop for one of the ends of a helical spring of a friction spring clutch, the relaxation of the yaw having the effect of retracting this stop and allowing the clutch to drive the ladder at an angle determined by a fixed stop.
  • the orientation mechanism consists of approximately seven parts and is not symmetrical, i.e. it can only be used in one direction of rotation.
  • an orientation mechanism is also known, also comprising a bar elastically mounted parallel to the axis of the winding pulley and subjected to the action of the yoke, this bar being provided two radial pawls coming to drive the inner strand of the ladder by a trainer fixed on this strand, by tilting the blind blades in the closed position, when the bar is unloaded.
  • the bar also serves as a means of coupling the ladder drum to the winding pulley.
  • This mechanism has about seven parts and is not symmetrical.
  • the object of the present invention is to provide a simpler mechanism for orienting the blades than the known mechanisms and capable of being executed in a symmetrical shape, that is to say usable in both directions of rotation and the mounting of which is therefore independent of the orientation of the awning drive shaft.
  • the blind according to the invention is characterized in that the drum of the lace and the pulley of the ladder are integral, that the movable member positioned elastically consists of a part capable of moving in a horizontal plane in a direction transverse to the axis of the drum relative to a fixed frame having a central passage for the lace and two lateral passages controlled by the drawer, for each of the strands of the ladder, this moving part being traversed by the lace so that traction on the lace has the effect of moving said movable part against its elastic positioning means, and that the strands of the ladder are each provided with a stop piece, the dimensions of the lateral passages, of the pieces of the stopper and of the movable part being such that when the movable piece is biased by the lace, the stopper pieces cannot pass through said lateral passages and the blades of the blind have the first inclination, while when the movable part is not stressed by the lace, the rising stop part can pass through the corresponding passage and allow the blades to tilt
  • the mechanism is very simple and symmetrical.
  • the absence of a moving part in the pulley makes it possible to pass a shaft of large section through the pulley and, in particular, to mount the pulley on a tubular motor.
  • the mechanism is preferably produced symmetrically relative to a vertical plane of symmetry parallel to the axis of the winding shaft, in particular passing through this axis.
  • the winding drum and the ladder pulley can be made in one piece rotating in a cradle constituting the frame.
  • the complete mechanism consists of three parts plus one or two springs for positioning the moving part.
  • Figure 1 is a sectional view along II of the Figure 2 shows the blind at the start of its rise phase.
  • the blind shown in Figures 1 to 3 comprises a rectangular metal box 1, partially shown in Figure 1, in which are mounted several winding and orientation units of the Venetian blind, only one of these units being shown in the drawing.
  • the box 1 is mounted in a recess 2 shown in phantom, with the exception of its lower edge 3.
  • the winding and orientation unit shown comprises a cradle 4 fixed to the casing 1 and in which is housed a tubular part 5 of generally cylindrical shape having an axial passage of hexagonal shape intended for its fitting onto a tubular motor.
  • This part 5 has a central groove 7 constituting a winding drum for the lace 8 of the blind, a lace freely passing through, in a manner known per se, the intermediate blades 9 of the blind and attached to the lower terminal blade 10.
  • the part 5 also has two grooves 11 and 12 arranged on either side of the groove 7 and constituting two pulleys through which pass two bands 13 and 14, the ends of which are attached, in a manner known per se, to the ends of two straps 15 and 16 fixed, in a manner known per se, to each of the edges of each of the blades 9 and 10 of the blind. It is usual to speak of a ladder for all of the bands 13 and 14 and of the straps 15 and 16 and of a ladder holder for the bands 13 and 14. The ladder holder is driven by friction by the part 5 when it it is rotated.
  • the cradle 4 simultaneously constitutes a frame for a drawer 17, movable in translation, under the part 5, transversely to the axis of the drive shaft, in a horizontal plane.
  • This drawer 17 has a central passage 18 letting pass, with a slight play, the lace 8.
  • the drawer 17 On each side of the passage 18, symmetrically to the latter, the drawer 17 has two rectangular passages 19 and 20 ( Figure 3).
  • the drawer 17 is also connected to the cradle 4 by two spring blades 21 and 22 which tend to keep the drawer in a central position, as shown in Figure 6, in the absence of transverse stress.
  • the cradle 4 Under the drawer 17, the cradle 4 has two rectangular passages 23 and 24 coinciding or not with the passages 19 and 20 of the drawer, depending on the position thereof. Above the drawer 17, the cradle 4 has two housings 25 and 26 located opposite the passages 23 and 24.
  • stop pieces 27 and 28 are fixed in the form of a bar, the dimensions of which are such that they can pass through the passages of the cradle and of the drawer and enter the housings 25 and 26.
  • the drawer 17 'could be pivotally mounted about a vertical axis 29.
  • the passage for the lace 8 could consist of a slot 18'.
  • the drawer positioning spring could be mounted at the hinge pin 29.
  • Figure 5 shows the blind in the lowering position.
  • the blade 10 is suspended and exerts traction on the lace 8 which has the effect of exerting on the drawer 17 a transverse force which moves the drawer 17 to the left against the action of its springs 21 and 22.
  • the passage 20 of the drawer is no longer opposite the passage 24 of the frame, which has the effect of partially closing this passage 24.
  • the part 5 rotating in the direction of the arrow the ladder holder is driven by friction in the same direction, so that its stop 27 goes down and its stop 28 goes up and engages in the passage 24 of the frame, but abuts against the drawer 17, determining a first inclination, relatively small, of the blades 9 of the blind.
  • the lace 8 relaxes and releases the drawer 17 which returns to its middle position under the effect of its springs. In this position, the passages of the drawer coincide with the passages of the frame.
  • the part 5 When the blind is raised, the part 5 is driven in the direction of the arrow according to FIG. 8.
  • the ladder holder is driven in the other direction and its stop 28 passes through the drawer 17 in the direction of the bottom.
  • the slats 9 of the blind straighten and the lace 8 tightens.
  • the tension of the lace 8 has the effect of again moving the drawer 17 to the left, the drawer partially closing the passage 23 of the frame (FIG. 9).
  • the stop 27 rises until it comes into abutment against the drawer 17 as shown in FIG. 2.
  • the blind continues to rise, the ladder holder sliding on the part 5.
  • the second embodiment represented in FIGS. 10 and 11 differs from the first embodiment only in the dimension of the lateral passages of the drawer 17 designated here by 170 and by the production of the stops 27 and 28 designated by the references 270 and 280.
  • the drawer 170 has lateral passages 190 and 200 wider than the passages 19 and 20, so that when the drawer 170 is moved to the left, only the passage 24 of the frame is partially closed.
  • the abutment piece 280 can be identical to the abutment piece 28.
  • the abutment piece 270 is provided with two lateral arms 271 and 272 which prevent the abutment from crossing the drawer 170 coming to abut against this drawer as shown in Figure 11. The stop 270 therefore never crosses the drawer.
  • this second embodiment is analogous to the operation of the first embodiment with the difference that the abutment piece 270 never passes through the drawer.
  • FIG. 12 represents an alternative embodiment of this second embodiment in which the stop 270 'is provided with lateral arms 273 and 274 in its lower part, these arms coming to abut against the cradle 4.
  • FIGS. 13 to 17 A particular embodiment of the stops 270 and 280 is shown in FIGS. 13 to 17.
  • the stop consists of a plastic plate 30 provided with pins 31 for fixing the ladder holder, a counterplate 32 connected to the plate 30 by a thinned part 33 forming an articulation and provided with clip tabs 34 and 35 , and two arms 36 and 37 connected to the plate 30 by two thinned parts 38 and 39 forming a joint, the arm 36 being extended downwards by an arm 40 and the arm 37 by an arm 41.
  • the plywood 32 is furthermore provided with holes 42.
  • the stop represented in FIGS. 13 to 17 allows the advantage of symmetry to be preserved in the second embodiment.
  • FIG. 18 illustrates an alternative embodiment of the first embodiment in which two switches 43 and 44 have been arranged at the height of the housings 25 and 26, so that they are actuated when the corresponding stop part enters in the housing, for example the part 28 as shown. This makes it possible to obtain a third automatic stopping point when the motor already has in itself a cage with two end of travel stopping points.
  • the embodiments and variants shown are themselves susceptible of numerous variants.
  • the elastic positioning of the drawer could be achieved in another way, for example by a spring placed in the extension of the drawer.
  • the drawer and its elastic positioning means may advantageously have come in one piece, with the cradle for example as shown in FIGS. 19 to 21.
  • FIG. 19 represents, seen from below, a cradle 45 corresponding to the cradle 4 of FIGS. 1 and 2. It has two vertical side walls, on the left and on the right in the drawing, which are applied against the walls of the box 1.
  • This cradle 45 came in one piece with a drawer 46 located under the cradle and connected to the cradle 45 by two pairs of thin arms 47, 48 and 49, 50 which play the role of positioning springs 21 and 22 of the first form of execution. These arms are connected to the cradle by two bases 55 and 56.
  • the drawer 46 has two cutouts 51 and 52 playing the role of passages 19 and 20 of the first embodiment. Above these cutouts, the cradle 45 has two frames 53 and 54 defining housings 61 and 62 similar to housings 25 and 26 of the first embodiment and the bottom of which is simply constituted by two transverse bars 57 and 58, 59 and 60 respectively.
  • the drawer 46 is provided with a central passage 63 similar to the passage 18 of the first embodiment, for the passage of the lace 8.
  • the frame is completed by a plastic plate 64 welded or glued to the cradle 45 under the drawer46.
  • This plate 64 has a central passage 67 similar to passage 29 and two lateral passages 65 and 66 similar to passages 23 and 24 of the first embodiment.
  • the device operates in the same way as the device according to the first embodiment.
  • the drawer 46 moves, in the case shown, to the right, the stop 27 being in this case also to the right.
  • This stop 27 abuts against the shoulders 68 and 69 of the drawer.
  • the stop 27 passes through the drawer to enter the housing 62.
  • the drawer 46 becomes a simple movable plate under the cradle.
  • the device is presented as shown in FIGS. 19 and 20.
  • the abutment pieces have a stepped profile, namely an upper part 70 in the shape of a truncated pyramid and shaped so as to have four shoulders, three of which 71, 72 and 73 are visible. Below these shoulders, the stops consist of a prismatic part 74. One of the stop pieces also has two wings 75 and 76 and corresponding to the stop 270 'in FIG. 12.
  • the pyramidal part 70 of the stops passes through the moving part 46 and engages in the corresponding housing 61 and 62 while coming to center the stop part in this housing.
  • the abutment piece provided with wings 75 and 76 abuts by its wings against the edges of the moving part 46. The other abutment can penetrate to the bottom of the housing 61.
  • the stop piece shown on the right in FIG. 22, abuts by two of its shoulders 71 and 73 against the shoulders 68 and 69 of the moving part 46.
  • the device therefore functions as the second embodiment.
EP92810113A 1991-02-22 1992-02-19 Store Expired - Lifetime EP0500499B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9102160 1991-02-22
FR9102160A FR2673232B1 (fr) 1991-02-22 1991-02-22 Store venitien.

Publications (2)

Publication Number Publication Date
EP0500499A1 true EP0500499A1 (de) 1992-08-26
EP0500499B1 EP0500499B1 (de) 1995-05-24

Family

ID=9410005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810113A Expired - Lifetime EP0500499B1 (de) 1991-02-22 1992-02-19 Store

Country Status (5)

Country Link
US (1) US5207261A (de)
EP (1) EP0500499B1 (de)
DE (1) DE69202593T2 (de)
ES (1) ES2048716T1 (de)
FR (1) FR2673232B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100532227B1 (ko) * 2002-11-29 2005-12-01 송명호 전동블라인드용 각도조절장치
CN101240691B (zh) * 2008-03-17 2011-07-20 朱晓荧 一种卷帘用的卷筒驱动装置
CN101328782B (zh) * 2008-07-26 2011-08-10 朱晓荧 一种窗帘

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5573051A (en) 1995-02-06 1996-11-12 Judkins; Ren Venetian type blinds
US6068039A (en) * 1992-09-28 2000-05-30 Judkins; Ren Material for venetian type blinds
US5839494A (en) * 1995-02-06 1998-11-24 Judkins; Ren Bottom and top stacking venetian type blind with fixed headrail tilt
US5806579A (en) * 1995-02-06 1998-09-15 Judkins; Ren Venetian type blinds having opposed lift cords
US6648050B1 (en) 1997-11-04 2003-11-18 Andrew J. Toti Spring drive system and window cover
FR2781521B1 (fr) 1998-07-27 2000-10-13 Franciaflex Ind Store venitien
US20100319859A1 (en) * 2009-06-23 2010-12-23 Taihao Knitting Belt Co., Ltd. Ladder cord lattice for window blinds
US9249623B2 (en) 2010-02-23 2016-02-02 Qmotion Incorporated Low-power architectural covering
US9194179B2 (en) 2010-02-23 2015-11-24 Qmotion Incorporated Motorized shade with the transmission wire passing through the support shaft
US8575872B2 (en) 2010-02-23 2013-11-05 Homerun Holdings Corporation High efficiency roller shade and method for setting artificial stops
US8659246B2 (en) 2010-02-23 2014-02-25 Homerun Holdings Corporation High efficiency roller shade
US8939190B2 (en) 2010-10-18 2015-01-27 QMotion Limited Motorizable tilt shade system and method
US9091115B2 (en) 2010-10-18 2015-07-28 Qmotion Incorporated Motorizable tilt shade system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2111511A1 (de) * 1970-03-11 1971-09-30 Erste Oesterreichische Metall Vorrichtung fuer Lamellenjalousie zum Aufziehen und Wenden der Jalousieblaetter
FR2177098A1 (de) * 1972-03-23 1973-11-02 Metallbau Ag Zuerich
EP0050677A1 (de) * 1980-01-24 1982-05-05 Griesser A.G. Rafflamellenstore
DE3205491A1 (de) * 1981-05-19 1982-12-16 Baumann AG Rolladenfabrik, 8820 Wädenswil Raffstore

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2182804A (en) * 1938-12-02 1939-12-12 Harold R Haase Venetian blind
US2604939A (en) * 1950-03-09 1952-07-29 Rolladenfabrik A Griesser A G Venetian blind
DE2726452A1 (de) * 1977-06-11 1979-05-23 Hunter Douglas Ind Bv Antrieb fuer eine lamellenjalousie
US4917168A (en) * 1989-09-21 1990-04-17 Chen Cheng Hsiung Angle-controlling device for a venetian blind

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2111511A1 (de) * 1970-03-11 1971-09-30 Erste Oesterreichische Metall Vorrichtung fuer Lamellenjalousie zum Aufziehen und Wenden der Jalousieblaetter
FR2177098A1 (de) * 1972-03-23 1973-11-02 Metallbau Ag Zuerich
EP0050677A1 (de) * 1980-01-24 1982-05-05 Griesser A.G. Rafflamellenstore
DE3205491A1 (de) * 1981-05-19 1982-12-16 Baumann AG Rolladenfabrik, 8820 Wädenswil Raffstore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100532227B1 (ko) * 2002-11-29 2005-12-01 송명호 전동블라인드용 각도조절장치
CN101240691B (zh) * 2008-03-17 2011-07-20 朱晓荧 一种卷帘用的卷筒驱动装置
CN101328782B (zh) * 2008-07-26 2011-08-10 朱晓荧 一种窗帘

Also Published As

Publication number Publication date
DE69202593T2 (de) 1996-02-01
ES2048716T1 (es) 1994-04-01
US5207261A (en) 1993-05-04
EP0500499B1 (de) 1995-05-24
FR2673232A1 (fr) 1992-08-28
FR2673232B1 (fr) 1993-06-11
DE69202593D1 (de) 1995-06-29

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