EP4087998B1 - Seilzugvorrichtung für jalousie, anordnung einer solchen vorrichtung und jalousie - Google Patents

Seilzugvorrichtung für jalousie, anordnung einer solchen vorrichtung und jalousie Download PDF

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Publication number
EP4087998B1
EP4087998B1 EP21700036.3A EP21700036A EP4087998B1 EP 4087998 B1 EP4087998 B1 EP 4087998B1 EP 21700036 A EP21700036 A EP 21700036A EP 4087998 B1 EP4087998 B1 EP 4087998B1
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EP
European Patent Office
Prior art keywords
gear
cord
blind
cord spool
clutch
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Active
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EP21700036.3A
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English (en)
French (fr)
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EP4087998A1 (de
Inventor
Nanne Willem VALKENBURG
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Vako BV
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Vako BV
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Publication of EP4087998A1 publication Critical patent/EP4087998A1/de
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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
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes

Definitions

  • the invention relates to a cord operated device for a blind, such as a roman blind, a roller blind, or a top down bottom up blind.
  • a blind such as a roman blind, a roller blind, or a top down bottom up blind.
  • the invention also relates to an assembly of at least one device according to the invention, and at least one blind, such as a roman blind, a roller blind, or a top down bottom up blind.
  • Blinds are typically provided for use with windows and can normally be moved between a fully raised position when no shading is required, and a fully extended position when full shading is required, and at locations intermediate the same to provide partial shading.
  • Manual adjustment of the position of a blind is typically realized by pulling a looped cord.
  • the looped cord can be deadly if it gets them caught around their neck.
  • JP2018071198 A shows a cord operated device comprising at least one stationary base, at least one axially rotation shaft connected or connectable to a roller for winding and unwinding a blind cord connected to a blind, wherein said rotation shaft is secured to said stationary base, at least one axially rotatable cord spool for winding and unwinding a control cord having an outer end connected to said cord spool, wherein said cord spool is secured to said stationary base, and wherein at least one spring is connected both to said cord spool and said stationary base configured to urge the cord spool to an initial position wherein the control cord is partially wound onto said cord spool, at least one transmission, secured to said stationary base, which transmission co-acts both with the cord spool and the rotation shaft of the roller, wherein said transmission comprises: at least one one-way clutch comprising an axially rotational clutch part and a stationary clutch part, wherein said axially rotational clutch part co-acts both
  • a cord operated device comprising:
  • the device according to the invention does not make use of a looped cord, but rather of an extended cord, the risk for children to become tangled by the cord is reduced significantly, and practically even eliminated. Due to the different construction compared the known operating devices, control of the blind also take place in a different manner. While the known operating devices operate by pulling the looped cord which causes a rotation of the looped cord and consequently a rotation of the blind roller, the device according to the invention operates in a more pulsating manner (pumping manner) by alternatively pulling the free cord end in downward direction and by consequently releasing the control cord. Pulling the free control cord end in downward direction will cause a rotation of the cord spool to allow the cord part initially wound onto the cord spool to be unwound.
  • the spring will become (more) loaded. Subsequent releasing the control cord will allow the cord spool to rotate in an opposite direction and will allow the spring to unload (at least partially), which results in rewinding of the control cord onto the cord spool.
  • the maximum extension of the control cord may vary, but is typically situated in between 10 and 60 cm. During this extension or retraction cycle of the control cord, or alternatively both during this extension and retraction of the control cord, the cord spool causes the axially rotatable part of the clutch to rotate in a predefined single direction, which causes to gear train to operate.
  • the rotation shaft of the roller, and hence the roller as such can be rotated in a first rotation direction or in a second rotation direction. Rotation of the roller results in a control, in particular the height positioning, of the blind as such.
  • the switch element By switching the switch element, the position of the sun gear can be switched, which allows the operating device to control both a lifting movement of the blind as well as a lowering movement of the blind.
  • the switch element can be manually operated independent from the control cord, wherein the switch element may e.g.
  • the switch element is formed by a control cord guide element for guiding the control cord to the cord spool, wherein the orientation of the guide element with respect to the base can be adjusted by pulling the control cord.
  • the control cord is not only used for dosing the movement of the blind, but may also be used to control and change the direction of this movement.
  • the control cord acts as central control cord by means of which the blind can be controlled entirely, and moreover in a relatively simple, efficient, and dosed manner.
  • the cord operating device can be used in combination with various blind types, such as but not limited to roman blinds, roller blinds, venetian blinds, louvers, jalousies, and top down bottom up blinds.
  • the control cord should be interpreted in a broad sense and does also includes a chain or any other flexible (windable) strip of material.
  • the roller is connected, more preferably releasably connected, to the rotation shaft of the roller, and hence may make part of the device according to the invention.
  • the spring connected both to the cord spool and the stationary base is preferably a spiral spring.
  • the centrally located terminal end of this flat spring is preferably attached to the stationary base, in particular to a mounting shaft of said base, and the laterally located other terminal end of this flat spring is preferably attached to the cord spool, in particular to the cord winding surface of said cord spool.
  • the spring connected both to the cord spool and the stationary is substantially completely enclosed by the cord spool.
  • the axially rotatable part of the clutch is (rotatably) mounted to the stationary mounting shaft of the stationary base.
  • the one-way clutch is preferably designed such that the axially rotatable part of the clutch is rotated only by the rotation of the cord spool during manual pulling of the control cord in a direction away from the cord spool.
  • the one-way clutch is designed such that the axially rotatable part of the clutch is prevented to rotate in case of rotation of the cord spool during release of the control cord. This means that only pulling of the control cord will cause the rotation shaft of the roller to be rotated, which will typically improves a user-friendly control of the device.
  • the axially rotatable part of the clutch and the cord spool co-act in such a way that the number of revolutions of the axially rotatable part of the clutch corresponds to the number of revolutions of the cord spool.
  • an accelerating or decelerating transmission is present in between the cord spool and the clutch to make the moving part of the clutch to rotate faster or slower than the cord spool, which could further optimize the user experience.
  • the axially rotatable part of the clutch is fixed to the first gear.
  • the first gear can for example be mounted onto the rotatable clutch part. It may be advantageous in case an end part of the rotatable clutch part, onto which the first gear is mounted has an angled, such as a square, pentagonal, or hexagonal, cross-section, and that the first gear comprises a receiving space having a matching contour to prevent slipping between the clutch and the first gear.
  • the gear train comprises a fourth gear co-acting with both the first gear and the third gear, wherein the second gear and the fourth gear have the same axis of rotation and opposite rotation directions. In this manner a gear box is created.
  • the sun gear is completely enclosed by a space defined by all gears of the gear train. In this manner the sub gear is protected to some extent from external impacts, which improves the durability and reliability of the operating device.
  • the sun gear preferably has a two-sided gear profile, wherein one gear profile is configured to co-act with the first gear (in the first position) and the other gear profile is configured to co-act with the third gear (in the second position).
  • the sun gear is provided with a circumferential rim which is, at least for a part, two-sidedly enclosed by the carriage. This facilitates movement of the sun gear from the first position to the second position and vice versa.
  • both gears are rotatably mounted to the rotation shaft of the roller.
  • a rotation of these gears do however not directly result in rotation of the rotation shaft, as this latter will be realized by rotation of the sun gear which will be driven by either the first gear or the third gear.
  • the rotation shaft of the roller has an angled, such as a square, pentagonal, or hexagonal, outer contour, and wherein the sun gear is provided with a matching inner contour. This prevents slipping between the rotation shaft and the sun gear.
  • the switch element as mentioned above preferably formed by a cord guide element, is preferably rotatably connected to the stationary base. This typically facilitates the control of the switch element, in particular when a lever, such as the control cord, is used.
  • the switch element is preferably provided with a knee joint, wherein the knee joint co-acts with at least one transmission element, such as connecting rod. This construction is relatively simple and leads to efficient control of the sun gear.
  • a spring typically a helical spring, may be used to stabilize the blind.
  • the stationary base is preferably configured to be fixed to a ceiling or wall.
  • the invention also relates to an assembly of at least one device according to the invention, and at least one blind, wherein the blind is connected, either directly or indirectly, to the roller of the device.
  • the assembly comprises a plurality of devices, wherein at least one device is configured to control an upper section of the blind and wherein at least one other device is configured to control a lower section of the blind. This is for example useful for top down bottom up blinds.
  • the assembly comprises a plurality of devices and a plurality of blinds, wherein at least one device is configured to control a first blind and wherein at least one other device is configured to control a second blind.
  • FIG. 1 shows a perspective view of an assembly of a cord operated device 1 and a blind 2 according to the invention.
  • This blind 2 can e.g. be formed by a roman blind, roller blind, or a top down bottom blind.
  • the device 1 according to the invention comprises a stationary base 3, which is composed of a plurality of components, such as an end cap 3a and a transmission housing 3b.
  • the base 3 is configured to be attached to a wall, typically by means of screws.
  • the blind is directly or indirectly secured to a roller 4 or a spool 4 or a tube 4 which is axially rotatable by means of a rotation shaft 5 in order to adjust the height positioning of the blind.
  • the rotation shaft 5 can be rotated by means of a cord 6.
  • the direction of rotation of the rotation shaft 5 can be determined by said same cord 6.
  • the cord is led into the base 3 by means of a cord guide element 7 pivotally connected to said base 3.
  • the rotation shaft 5 can be rotated.
  • the cord guide element 7 will be pivoted with respect to the base 3 resulting in a change of rotation direction of the rotation shaft 5 as will be explained below in more detail.
  • the cross-section shown in figure 2 shows a bottom view of the device 1 (without the cord 6).
  • the stationary base 3 further includes a stationary shaft 3c mounted to a stationary base plate 3d, and that the base 3 additionally includes an inner housing 3e, wherein a part of said inner housing 3e constitutes a stationary part 8a of a one-way clutch 8 of the device.
  • the device 1 comprises at least one axially rotatable cord spool 9 for winding and unwinding a control cord having an outer end connected to said cord spool, wherein said cord spool 9 is secured to said stationary base 3.
  • a leaf spring (helical spring) 10 is connected with one end to (a slit of) the stationary shaft 3d, and with an opposite end to a circumferential wall 9a of the cord spool 9.
  • the cord spool 9, and in particular the circumferential wall 9a thereof, is intended to wind a part of the cord 6, wherein one cord end is connected to the cord spool 9.
  • the cord spool 9 starts to rotate until the cord 6 is fully extended. During this rotation the spring 10 will be wound. Once the cord 6 is released again, the spring 10 will urge the cord spool 9 to rotate in opposite direction until the spring 10 is sufficiently unwound thereby rewinding the cord 6 onto the cord spool 9.
  • a mobile part 8b of the one-way clutch 8 is (rotatably) mounted to the stationary shaft 3d and is configured to rotate only in case the cord spool 9 is rotated in a predefined (single) direction, in this embodiment in a rotation direction caused by pulling of the cord 6. During release of the cord 6 the mobile clutch part 8b will by blocked.
  • This one-way clutch effect is realized by two profiles tracks 8c, 8d applied at the outer surface of the mobile clutch part 8b, which are clearly visualized in figure 6 .
  • Each track 8c, 8d is provided with a ball (not shown) which either allows rotation or prevents rotation of the mobile clutch part 8b.
  • the axially rotatable mobile clutch part 8b is directly connected to a first gear 11a of a gear train 11.
  • the gear train 11 consists in this example of four conically shaped gears 11a, 11b, 11c, 11d perpendicularly co-acting with each other as to form a gear box.
  • the first gear 11a and the third gear 11c are oriented in line with each other and are configured to rotate in opposite directions.
  • the second gear 11b and the fourth gear 11d are also oriented in line with each other and are also configured to rotate in opposite directions.
  • the gear train 11 encloses a space in which a sun gear 12 is located.
  • This sun gear 12 is provided with two conical (bevelled) sides having toothed profile 12a, 12b, as well as a laterally protruding circumferential rim 13.
  • the sun gear 12 is secured onto (a part of) the rotation shaft 5 in a sliding manner allowing the sun gear 12 to be displaceable an axial direction of the rotation shaft 5.
  • the part of the rotation shaft 5 onto which the sun gear 12 is secured has a hexagonal cross-section onto which the sun gear 12 form-fittingly engages.
  • the first gear 11a and third gear 11c are also mounted to said rotation shaft 5, but have a circular receiving space which allows the gears 11a, 11c to rotate independently from the rotation shaft 5.
  • the circumferential rim 13 of the is bilaterally enclosed by a carriage 14 which is connected by means of a connecting rod 15 to a knee joint 16 of the cord guide element 7.
  • the knee joint 16 By pivoting the cord guide element 7 with respect to the base 3, the knee joint 16 will accordingly be pivoted resulting in a displacement of the connecting rod 15, and consequently of the carriage 14 and the sun gear 12 co-acting with said carriage 14.
  • the sun gear 12 can be displaced between a first position, wherein the sun gear 12 co-acts with the first gear 11a (resulting in a first rotation direction of the rotation shaft 5), and a second position, wherein the sun gear 12 co-acts with the third gear 11c (resulting in a second rotation direction of the rotation shaft 5 opposite to the first rotation direction).
  • the rotation direction of the rotation shaft 5 can be selected in a relatively easy manner by a user.
  • a balancing spring 17 is situated in between the rotation shaft 5 and the base 3 in order to stabilize (balance) the blind at each height position.

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

Claims (15)

  1. Seilzugvorrichtung für eine Jalousie (2), wie etwa einen Raffvorhang oder eine Rolljalousie, die Folgendes umfasst:
    - zumindest eine stationäre Basis (3),
    - zumindest eine axial rotierende Welle (5), verbunden oder verbindbar mit einer Rolle (4) zum Aufwickeln und Abwickeln einer Jalousie (2) und/oder eines mit einer Jalousie verbundenen Jalousieseilzugs (5), wobei die rotierende Welle an der stationären Basis gesichert ist,
    - zumindest eine axial rotierbare Seilzugspule (4) zum Aufwickeln und Abwickeln eines Steuerseilzugs mit einem äußeren Ende, das mit der Seilzugspule verbunden ist, wobei die Seilzugspule an der stationären Basis gesichert ist, und wobei zumindest eine Feder (10) sowohl mit der Seilzugspule als auch der stationären Basis verbunden ist, dazu ausgelegt, die Seilzugspule in eine anfängliche Position zu zwingen, in der der Steuerseilzug teilweise auf die Seilzugspule gewickelt ist,
    - zumindest ein Getriebe, gesichert an der stationären Basis, wobei das Getriebe sowohl mit der Seilzugspule als auch der rotierenden Welle der Rolle zusammenwirkt, wobei das Getriebe Folgendes umfasst:
    ∘ zumindest eine Freilaufkupplung (8), umfassend einen axial rotierenden Kupplungsteil (8b) und einen stationären Kupplungsteil (8a), wobei der axial rotierende Kupplungsteil sowohl mit der Seilzugspule als auch dem stationären Kupplungsteil zusammenwirkt, sodass der axial rotierende Kupplungsteil veranlasst wird, durch Rotation der Seilzugspule nur in einer einzelnen Rotationsrichtung gedreht zu werden,
    ∘ zumindest ein Zahnradgetriebe (11), umfassend mindestens drei zusammenwirkende konische Zahnräder (11a, 11b, 11c), wobei zumindest ein erstes Zahnrad (11a) mit dem axial rotierbaren Kupplungsteil verbunden ist, und wobei zumindest ein zweites Zahnrad (11b) zwischen einem dritten Zahnrad (11c) und dem ersten Zahnrad befindlich ist, wobei das erste Zahnrad und das dritte Zahnrad die gleiche Rotationsachse und einander entgegengesetzte Rotationsrichtungen aufweisen, und
    ∘ zumindest ein versetzbares, axial rotierbares Sonnenrad (12), das sich zumindest teilweise in einem Raum befindet, der durch das erste und das dritte Zahnrad eingeschlossen wird, wobei das Sonnenrad an der rotierenden Welle der Rolle montiert ist, und wobei das Sonnenrad zwischen einer ersten Position, in der das Sonnenrad mit dem ersten Zahnrad zusammenwirkt, um der rotierenden Welle zu ermöglichen, in eine erste Richtung zu rotieren, und einer zweiten Position, in der das Sonnenrad mit dem dritten Zahnrad zusammenwirkt, um der rotierenden Welle zu ermöglichen, in eine zweite Richtung, die der ersten Richtung entgegengesetzt ist, zu rotieren, versetzbar ist,
    - zumindest einen Richtungssteuerungsmechanismus, der an der stationären Basis gesichert ist, Folgendes umfassend:
    ∘ zumindest einen Schlitten (14), der mit dem Sonnenrad zusammenwirkt und dazu ausgelegt ist, das Sonnenrad zwischen der ersten und der zweiten Position zu versetzen,
    ∘ ein Schaltelement (7), das versetzbar mit der stationären Basis verbunden ist, sodass die Ausrichtung des Schaltelements bezüglich der Basis manuell angepasst werden kann, und
    ∘ zumindest ein Getriebeelement (15), das das Schaltelement mit dem Schlitten verbindet.
  2. Vorrichtung nach Anspruch 1, wobei die Feder, die sowohl mit der Seilzugspule als auch der stationären Basis verbunden ist, eine Spiralfeder ist und/oder wobei die Feder, die sowohl mit der Seilzugspule als auch der stationären Basis verbunden ist, im Wesentlichen vollständig von der Seilzugspule eingeschlossen ist.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, wobei die stationäre Basis eine stationäre zentrale Befestigungswelle (3d) umfasst,
    wobei ein erstes Ende der Feder mit der Befestigungswelle verbunden ist und ein zweites Ende der Feder mit der Seilzugspule, vorzugsweise einer äußeren Oberfläche der Seilzugspule, verbunden ist, wobei vorzugsweise der axial rotierbare Teil der Kupplung an der stationären Befestigungswelle befestigt ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die Freilaufkupplung so ausgestaltet ist, dass der axial rotierbare Teil der Kupplung während des manuellen Ziehens des Steuerseilzugs in eine Richtung weg von der Seilzugspule nur durch die Rotation der Seilzugspule gedreht wird und/oder wobei die Freilaufkupplung so ausgestaltet ist, dass der axial rotierbare Teil der Kupplung während der Freigabe des Steuerseilzugs daran gehindert wird, im Falle einer Rotation der Seilzugspule zu rotieren.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei der axial rotierbare Teil der Kupplung und die Seilzugspule in einer Weise zusammenwirken, dass die Anzahl von Umdrehungen des axial rotierbaren Teils der Kupplung der Anzahl von Umdrehungen der Seilzugspule entspricht und/oder wobei der axial rotierbare Teil der Kupplung auf das erste Zahnrad fixiert ist.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei das Zahnradgetriebe ein viertes Zahnrad (11d) umfasst, das sowohl mit dem ersten Zahnrad als auch dem dritten Zahnrad zusammenwirkt,
    wobei das zweite Zahnrad und das vierte Zahnrad die gleiche Rotationsachse und einander entgegengesetzte Rotationsrichtungen aufweisen.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei das Sonnenrad vollständig von einem Raum eingeschlossen ist, der durch alle Zahnräder des Zahnradgetriebes definiert ist, und/oder
    wobei das erste Zahnrad und das dritte Zahnrad rotierbar an der rotierenden Welle der Rolle befestigt sind.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei das Sonnenrad ein zweiseitiges Zahnradprofil aufweist und/oder wobei das Sonnenrad mit einem umlaufenden Rand (13) versehen ist, der teilweise durch einen Schlitten (14) eingeschlossen ist.
  9. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die rotierende Welle der Rolle eine angewinkelte äußere Kontur aufweist und wobei das Sonnenrad mit einer passenden inneren Kontur versehen ist.
  10. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei das Schaltelement rotierbar mit der stationären Basis verbunden ist und/oder wobei das Schaltelement mit einem Kniegelenk (16) versehen ist, wobei das Kniegelenk mit zumindest einem Getriebeelement zusammenwirkt.
  11. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei zumindest ein Getriebeelement, das das Schaltelement und den Schlitten verbindet, durch eine Verbindungsstange (15) gebildet ist.
  12. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei das Schaltelement mit einem Steuergriff versehen ist, insbesondere einer Steuerstange, und/oder wobei das Schaltelement durch ein Steuerseilzug-Führungselement zum Führen des Steuerseilzugs zur Seilzugspule gebildet ist, wobei die Ausrichtung des Führungselements bezüglich der Basis durch Ziehen des Steuerseilzugs angepasst werden kann.
  13. Vorrichtung nach einem der vorhergehenden Ansprüche, wobei die stationäre Basis dazu ausgelegt ist, an einer Decke oder Wand befestigt zu werden.
  14. Anordnung aus zumindest einer Vorrichtung nach einem der vorhergehenden Ansprüche, und zumindest einer Jalousie, wobei die Jalousie, entweder direkt oder indirekt, mit der Rolle der Vorrichtung verbunden ist.
  15. Anordnung nach Anspruch 14, wobei die Anordnung mehrere Vorrichtungen umfasst, wobei zumindest eine Vorrichtung ausgelegt ist zum Steuern eines oberen Abschnitts der Jalousie und wobei zumindest eine andere Vorrichtung ausgelegt ist zum Steuern eines unteren Abschnitts der Jalousie und/oder wobei die Anordnung mehrere Vorrichtungen und mehrere Jalousien umfasst, wobei zumindest eine Vorrichtung ausgelegt ist zum Steuern einer ersten Jalousie und wobei zumindest eine andere Vorrichtung ausgelegt ist zum Steuern einer zweiten Jalousie.
EP21700036.3A 2020-01-06 2021-01-05 Seilzugvorrichtung für jalousie, anordnung einer solchen vorrichtung und jalousie Active EP4087998B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2024608A NL2024608B1 (en) 2020-01-06 2020-01-06 Cord operated device for a blind, an assembly of such a device and a blind
PCT/NL2021/050002 WO2021141489A1 (en) 2020-01-06 2021-01-05 Cord operated device for a blind, an assembly of such a device and a blind

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EP4087998A1 EP4087998A1 (de) 2022-11-16
EP4087998B1 true EP4087998B1 (de) 2023-10-25

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WO (1) WO2021141489A1 (de)

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Publication number Priority date Publication date Assignee Title
JP6150692B2 (ja) * 2013-09-13 2017-06-21 立川ブラインド工業株式会社 遮蔽材駆動装置、遮蔽装置
NL1040807B1 (nl) 2014-05-16 2016-03-02 Forest Group Nederland Bv Inrichting voor het draaien van de as van een rolgordijn of een dergelijk object.
JP6808448B2 (ja) * 2016-10-31 2021-01-06 立川ブラインド工業株式会社 操作装置

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WO2021141489A1 (en) 2021-07-15
NL2024608B1 (en) 2021-09-07

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