FR2718788A1 - Automatic limiting device for stopping motor of mechanised blind - Google Patents

Automatic limiting device for stopping motor of mechanised blind Download PDF

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Publication number
FR2718788A1
FR2718788A1 FR9404775A FR9404775A FR2718788A1 FR 2718788 A1 FR2718788 A1 FR 2718788A1 FR 9404775 A FR9404775 A FR 9404775A FR 9404775 A FR9404775 A FR 9404775A FR 2718788 A1 FR2718788 A1 FR 2718788A1
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FR
France
Prior art keywords
blind
tension
blades
supported
switch
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Granted
Application number
FR9404775A
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French (fr)
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FR2718788B1 (en
Inventor
Soum Rene
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GA
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GA
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Publication date
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Priority to FR9404775A priority Critical patent/FR2718788B1/en
Publication of FR2718788A1 publication Critical patent/FR2718788A1/en
Application granted granted Critical
Publication of FR2718788B1 publication Critical patent/FR2718788B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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

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

Abstract

When the blind is lowered, a limit switch (I1) is activated. The button on this switch is in direct contact with one of the bands (R) which support the blind. The switch exerts an elastic force on the band which is under tension when the slats of the blind are supported by this band (R). When the blind is fully lowered the tension in the band disappears as the lower slat, and the other slats are supported by the strings (F). This allows the switch to displace the band by a distance (D1). When the blind is raised there is a second limit switch (I2). This switch is in contact with one of the strings (F) and exerts an elastic force on the string (F) which is under tension when the slats of the blind are supported by the string (F). When the blind is fully raised and the upper slat is supported by the bands (R) the tension disappears and the string is displaced by a distance (D2).

Description

Dispositif de fin de course haute et basse
de systèmes tels les stores motorisés
La présente invention concerne un dispositif de fin de course applicable sur des systèmes tels les stores motorisés dont la particularité est qu'il ne nécessite aucun réglage.Upper and lower limit switch
systems such as motorized blinds
The present invention relates to a limit switch device applicable to systems such as motorized blinds, the particularity of which is that it requires no adjustment.

Un store comporte des lames L supportées par deux fils souples F comportant à intervalles réguliers des arrêts de maintien et d'orientation de ces lames.A blind comprises slats L supported by two flexible wires F comprising at regular intervals stops for holding and orienting these slats.

Deux rubans R au moins assurent, par enroulement autour d'un axe A, la montée des lames L en tirant vers le haut la lame la plus basse sur laquelle les autres lames L viennent successivement s'empiler.At least two ribbons R, by winding around an axis A, raise the blades L by pulling up the lowest blade on which the other blades L are successively stacked.

Les stores à manoeuvre électrique comportent sur l'axe A une motorisation qui impose de disposer de fins de course hautes et basses.The electrically operated blinds have a motorization on axis A which requires high and low limit switches.

Dans les systèmes actuellement connus, ces fins de course sont réalisées à l'aide d'une vis sans fin reliée à l'axe A, laquelle déplace un écrou fixe en rotation vers deux interrupteurs de fin de course qu'il y a lieu de régler pour chaque store.In currently known systems, these limit switches are produced using a worm screw connected to the axis A, which moves a fixed nut in rotation towards two limit switches which it is necessary to adjust for each blind.

Un autre système connu consiste à placer sur les montants verticaux du bâti entourant le store des capteurs formant interrupteurs aptes à couper le circuit d'alimentation lorsque la lame la plus basse passe devant ces capteurs.Another known system consists of placing sensors forming switches on the vertical uprights of the frame surrounding the blind capable of cutting the supply circuit when the lowest blade passes in front of these sensors.

Tous ces systèmes connus présentent l'inconvénient d'exiger soit des réglages sur le mécanisme du store, soit des positionnements de détecteurs sur des parties extérieures au mécanisme du store.All of these known systems have the drawback of requiring either adjustments to the mechanism of the blind, or positioning of detectors on parts external to the mechanism of the blind.

Afin d'éviter ces réglages, tout en disposant les mécanismes sur le store lui même, les fins de course objet de l'invention sont réalisées par un moyen détectant d'une part la disparition de la tension dans le ruban R de manoeuvre du store en fin de course basse, d'autre part la disparition de la tension dans les fils F de suspension des lames lorsque le store est en fin de course haute.In order to avoid these adjustments, while placing the mechanisms on the blind itself, the limit switches which are the subject of the invention are produced by means detecting on the one hand the disappearance of the tension in the ribbon R for operating the blind. at the low end of travel, on the other hand, the disappearance of the tension in the blades F suspension wires when the blind is at the high end of travel.

En effet, en fin de course basse, ce sont les fils F qui supportent entièrement le poids des lames, et non les rubans R : la disparition de la tension dans ces rubans permet donc de caractériser le point de fin de course basse.In fact, at the low end of the travel, it is the wires F which fully support the weight of the blades, and not the ribbons R: the disappearance of the tension in these ribbons therefore makes it possible to characterize the low end of travel point.

De même, en fin de course haute, lorsque la lame L située sous le profilé support du mécanisme est supportée par la lame immédiatement inférieure, la tension dans les fils F disparaît: la disparition de la tension dans ces fils permet donc de caractériser le point de fin de course haute.Similarly, at the end of the upper stroke, when the blade L located under the support profile of the mechanism is supported by the immediately lower blade, the tension in the wires F disappears: the disappearance of the tension in these wires therefore makes it possible to characterize the point high limit switch.

Selon le dispositif le plus simple, le poussoir d'un interrupteur Il est placé de telle façon qu'il exerce un appui élastique sur l'un des rubans R, la tension de ce ruban maintenant une pression sur ce poussoir.According to the simplest device, the push-button of a switch It is placed in such a way that it exerts an elastic support on one of the ribbons R, the tension of this ribbon maintaining a pressure on this push-button.

Lorsque le store est en position basse, et que les rubans R qui supportaient les lames sont par conséquent détendus puisque ce sont alors les fils F qui les supportent, le déplacement Dt du poussoir de l'interrupteur Il rendu possible par l'absence de tension du ruban R assure la coupure de l'alimentation de descente des lames et la fin de course basse.When the blind is in the low position, and the ribbons R which supported the slats are consequently relaxed since it is then the wires F which support them, the movement Dt of the push button of the switch Il made possible by the absence of tension tape R cuts the lowering power supply for the blades and the lower limit switch.

Inversement, la mise sous tension du ruban dès que les lames descendent rétablit l'alimentation dans le sens de la montée des lames.Conversely, putting the ribbon under tension as soon as the blades descend restores the power supply in the direction of the blades' rise.

Un autre interrupteur à poussoir 12 est placé de telle façon que son poussoir exerce un appui élastique sur l'un des fils F, dont la tension maintient une pression sur ce poussoir.Another push-button switch 12 is placed so that its push-button exerts an elastic support on one of the wires F, the tension of which maintains a pressure on this push-button.

Lorsque le store est en position haute, et que les fils F sont par conséquent détendus puisque le poids de la lame la plus haute est supporté par les lames inférieures elles mêmes supportées par les rubans R, le déplacement D2 du poussoir de rinterrupteur 12 rendu possible par l'absence de tension du fil F assure la coupure de l'alimentation de montée et la fin de course haute.When the blind is in the high position, and the wires F are consequently relaxed since the weight of the highest blade is supported by the lower blades themselves supported by the ribbons R, the movement D2 of the switch 12 made possible by the absence of tension of the wire F ensures the cut of the rise supply and the high limit switch.

Inversement, la mise sous tension du fil dès que les lames commencent à descendre rétablit l'alimentation dans le sens de la descente des lames.Conversely, putting the wire under tension as soon as the blades begin to descend restores the power supply in the direction of descent of the blades.

Ce dispositif assure donc d'une façon simple, intégrée, et sans qu'il soit nécessaire d'effectuer le moindre réglage, les fins de course haute et basse.This device therefore ensures in a simple, integrated manner, and without the need for any adjustment, the high and low limit switches.

Les actions sur les poussoirs peuvent bien entendu être obtenues à raide d'une tige ou de tous autres systèmes interposés entre le ou les poussoirs d'interrupteur et le ruban ou le fil, ramenant sur ces poussoirs les déplacements liés à la tension du ruban support et du fil support des lames, les deux interrupteurs Il et 12 pouvant être eux mêmes regroupés en un seul. The actions on the pushers can of course be obtained by means of a rod or any other system interposed between the switch pushbutton (s) and the ribbon or the wire, reducing on these pushers the displacements linked to the tension of the support ribbon. and of the blade support wire, the two switches 11 and 12 being able to be grouped together into one.

Claims (3)

REVENDICATIONS 1 - Dispositif assurant les fins de course haute et basse de systèmes tels les stores, caractérisé en ce qu'elles sont réalisées par un moyen détectant d'une part la disparition de la tension dans le ruban R de manoeuvre du store en fin de course basse, d'autre part la disparition de la tension dans les fils F de suspension des lames lorsque le store est en fin de course haute.1 - Device ensuring the upper and lower limit switches of systems such as blinds, characterized in that they are produced by means detecting on the one hand the disappearance of the tension in the ribbon R for operating the blind at the end of the stroke low, on the other hand the disappearance of the tension in the wires F for suspending the slats when the blind is at the end of the high stroke. 2 - Dispositif selon la revendication 1 de détection et de coupure de fin de course basse d'un store motorisé, caractérisé en ce qu'il comporte un interrupteur Il de coupure basse dont le poussoir s'appuie directement ou non contre l'un des rubans R support des lames, et se déplace sous l'effet de l'appui élastique qu'il exerce sur ce ruban et du déplacement D1 du ruban lié à l'existence de sa tension tant que les lames inférieures sont soutenues par ces rubans R et à la disparition de cette tension lorsque la lame inférieure et par suite toutes les lames sont, en fin de course basse, supportées par les fils F d'écartement et d'orientation des lames.2 - Device according to claim 1 for detection and low end cutout of a motorized blind, characterized in that it comprises a low cutoff switch Il of which the pusher bears directly or not against one of the ribbons supporting the blades, and moves under the effect of the elastic support which it exerts on this ribbon and of the displacement D1 of the ribbon linked to the existence of its tension as long as the lower blades are supported by these ribbons R and on the disappearance of this tension when the lower blade and consequently all the blades are, at the end of the lower stroke, supported by the wires F for spacing and orientation of the blades. 3 - Dispositif selon la revendication 1 de détection et de coupure de fin de course hautre d'un store motorisé, caractérisé en ce qu'il comporte un interrupteur de coupure haute 12 dont le poussoir s'appuie directement ou non contre l'un des fils F d'écartement et d'orientation des lames, et se déplace sous l'effet de l'appui élastique qu'il exerce sur ce fil et du déplacement D2 du fil lié à l'existence de sa tension tant que la lame la plus haute est soutenue par ce fil et à la disparition de cette tension lorsque cette lame supérieure et par suite toutes les lames sont, en fin de course haute, supportées par les rubans R. 3 - Device according to claim 1 for detection and cut-off of the top end of a motorized awning, characterized in that it comprises a high cut-off switch 12, the pusher of which bears directly or not against one of the son F of spacing and orientation of the blades, and moves under the effect of the elastic support which it exerts on this wire and of the displacement D2 of the wire linked to the existence of its tension as long as the blade higher is supported by this wire and when this tension disappears when this upper blade and consequently all the blades are, at the end of the high stroke, supported by the ribbons R.
FR9404775A 1994-04-19 1994-04-19 Upper and lower limit switch for systems such as motorized blinds. Expired - Fee Related FR2718788B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9404775A FR2718788B1 (en) 1994-04-19 1994-04-19 Upper and lower limit switch for systems such as motorized blinds.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9404775A FR2718788B1 (en) 1994-04-19 1994-04-19 Upper and lower limit switch for systems such as motorized blinds.

Publications (2)

Publication Number Publication Date
FR2718788A1 true FR2718788A1 (en) 1995-10-20
FR2718788B1 FR2718788B1 (en) 1996-05-15

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FR9404775A Expired - Fee Related FR2718788B1 (en) 1994-04-19 1994-04-19 Upper and lower limit switch for systems such as motorized blinds.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1264958A3 (en) * 2001-06-05 2003-05-21 Hugo Tobler Shading device with a movable curtain

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355149A (en) * 1964-12-10 1967-11-28 Wiegelmann Hans Apparatus for raising and lowering blinds
DE1763441A1 (en) * 1968-05-30 1971-12-02 Licentia Gmbh Electromotive blind drive device
DE3630164A1 (en) * 1985-09-05 1987-03-12 Planya Ag Device with a slatted rolling blind (Venetian blind)
EP0480429A2 (en) * 1990-10-11 1992-04-15 Toso Company, Limited Apparatus for lifting and tilting slats in a venetian blind
US5175478A (en) * 1991-09-24 1992-12-29 Waller Chen Electrically operated driving shaft control device for a window blind
JPH06101387A (en) * 1992-09-16 1994-04-12 Toso Co Ltd Slack sensing device for motor-driven blind

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3355149A (en) * 1964-12-10 1967-11-28 Wiegelmann Hans Apparatus for raising and lowering blinds
DE1763441A1 (en) * 1968-05-30 1971-12-02 Licentia Gmbh Electromotive blind drive device
DE3630164A1 (en) * 1985-09-05 1987-03-12 Planya Ag Device with a slatted rolling blind (Venetian blind)
EP0480429A2 (en) * 1990-10-11 1992-04-15 Toso Company, Limited Apparatus for lifting and tilting slats in a venetian blind
US5175478A (en) * 1991-09-24 1992-12-29 Waller Chen Electrically operated driving shaft control device for a window blind
JPH06101387A (en) * 1992-09-16 1994-04-12 Toso Co Ltd Slack sensing device for motor-driven blind

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 18, no. 374 (M - 1638) 12 April 1994 (1994-04-12) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1264958A3 (en) * 2001-06-05 2003-05-21 Hugo Tobler Shading device with a movable curtain

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FR2718788B1 (en) 1996-05-15

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