EP3670818B1 - Dispositif d'entraînement pour stores horizontaux - Google Patents

Dispositif d'entraînement pour stores horizontaux Download PDF

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Publication number
EP3670818B1
EP3670818B1 EP19218515.5A EP19218515A EP3670818B1 EP 3670818 B1 EP3670818 B1 EP 3670818B1 EP 19218515 A EP19218515 A EP 19218515A EP 3670818 B1 EP3670818 B1 EP 3670818B1
Authority
EP
European Patent Office
Prior art keywords
drive
actuating
drive device
actuators
spindles
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.)
Not-in-force
Application number
EP19218515.5A
Other languages
German (de)
English (en)
Other versions
EP3670818A1 (fr
Inventor
Michael Sautner
Franz Topf
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.)
Sautner Michael
Topf Franz
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3670818A1 publication Critical patent/EP3670818A1/fr
Application granted granted Critical
Publication of EP3670818B1 publication Critical patent/EP3670818B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E06B9/327—Guides for raisable lamellar blinds with horizontal lamellae
    • 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
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/308—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape with coaxial tilting bar and raising shaft
    • 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
    • E06B9/302—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable without ladder-tape, e.g. with lazy-tongs, with screw spindle
    • 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
    • E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
    • E06B9/307—Details of tilting bars and their operation
    • 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
    • E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
    • E06B2009/3222—Cordless, i.e. user interface without cords

Definitions

  • the invention relates to a drive device for horizontal blinds, with lamellae carriers guided on parallel adjusting drives, the adjusting drives forming drive spindles, each of which has a spirally revolving adjusting gear with a gradient that decreases towards a rest position, and the lamellae carriers each having two mutually displaceable in the longitudinal direction of the adjusting drives Include actuators, each engaging in one of the two gears.
  • drive devices which comprise slat carriers which are guided on parallel drive spindles and have cross braces ( WO 1991004390 A1 ).
  • the crossbars of the respective disk carriers are in engagement with the spirally encircling thread turns of both spindles due to the force of gravity and can be moved by the rotational movement of the spindles along their horizontally running longitudinal direction.
  • the drive spindles In order to be able to bring the slats together tightly into a rest position to form a slat pack when the blind is completely open, the drive spindles have a smaller thread pitch at their end sections compared to their middle sections.
  • one of the two spindles is provided with a free-wheeling means, which causes the spindles to start offset, which leads to a swiveling of the cross struts of the slat carrier engaging in the threads of the spindles.
  • the disadvantage here is that reliable guidance of the disk carriers on the drive spindles and uniform alignment of the disks is not possible even with synchronizable drive spindles, since the cross braces, which are only loosely in contact with the spindles, can slip relatively easily in the threads.
  • the invention is therefore based on the object of designing a drive device for horizontal blinds of the type described above in such a way that low manufacturing and assembly effort achieved a long service life and functionality and in particular despite low manufacturing and assembly effort and low component requirements, a particularly reliable pivoting of the slats is made possible.
  • the invention solves the problem in that the disk carriers have a length-adjustable swivel unit that is articulated to the two actuators and that the drive spindles can be adjusted independently of one another.
  • the actuators engaging in the adjustment gears absorb the thrust forces of the respective adjustment gear flanks, as a result of which the actuators are moved translationally along the longitudinal direction of the spindle.
  • the actuators of the disk carrier do not rest on the floor of the aisles due to gravity, but rather engage in the aisles in the sense of a guidance and positioning aid, whereby all disk carriers of the drive device according to the invention are guided uniformly along them, regardless of the direction of rotation of the spindles. This effectively avoids unwanted skewing and consequently the risk of the slats becoming wedged.
  • the two actuators of a disk carrier can be displaced in relation to one another in the longitudinal direction of the adjusting drives or the drive spindles.
  • displaceability is understood to mean that the two actuators of a disk carrier are moved independently of one another and relative to one another along the drive spindle longitudinal direction, or both at the same spindle height or positioned offset to one another in the longitudinal direction of the spindle.
  • the two actuators are, in particular, two independent units that do not have a rigid connection, but instead have an articulated or flexible connection with one another.
  • the respective slats can be fastened to the slat carrier via a slat holder, the slat holder having, for example, a receiving slot for the slat to be inserted or else forming a connecting pin which engages in a corresponding pin seat of the slat.
  • the drive spindles can be designed in such a way that they have a plastic-coated metal core.
  • the plastic casing has a plurality of, for example, injection-molded or 3D-printed spindle segments, which are preferably glued to one another or can be connected to one another in a materially bonded manner in some other way.
  • the actuators can have guide lugs which engage radially in the actuating gear.
  • the preferably at least three guide lugs effectively prevent tilting of the actuators and at the same time absorb the thrust forces of the drive spindles.
  • the actuators enclose the drive spindle on the peripheral side and have at least three guide pins on the inside that protrude radially into the adjustment gears of the drive spindles. In the case of three guide pins, these can be arranged offset from one another on the circumferential side, each at an angle of 120°.
  • the length of the pivoting unit is in particular the shortest connection length of an imaginary connecting line running through the pivoting unit between the two actuators, whereby the connection length can be varied, for example, via a simple telescopic connection, a connecting rod running in a guide sleeve, an adjustable connecting rail or via a bolt that can be displaced in a slot in a connecting body of the pivoting unit and is articulated on one of the actuators. Since the drive spindles can be adjusted independently of one another, the respective actuators of a disk carrier can be displaced relative to one another in the longitudinal direction of the spindle or moved relative to one another in the longitudinal direction of the spindle, depending on the speeds and/or directions of rotation at which the two drive spindles rotate.
  • the actuators can be shifted from an open position of the slats to a closed position of the slats, and vice versa.
  • the displacement of the actuators relative to one another can also take place while both drive spindles are in operation, for example by briefly accelerating one of the drive spindles to a higher rotational speed, so that pivoting is also made possible with simultaneous movement of the slats along the spindle longitudinal direction.
  • the gradient of the adjustment gears can be designed in such a way that a displacement of an actuator during one revolution allows the associated lamella to be pivoted from a closed position into an open position.
  • one of the pinions of the transmission itself can have a free-wheeling means.
  • the spindles start offset, which means that the slats can be pivoted.
  • particularly large adjustment angles result when the driver of the freewheeling means is driven via a planetary gear such that a relatively low relative speed between the driver and the freewheeling actuator results at a high actuating speed of the two actuators.
  • the actuating elements can be guided via one or more guide rails running parallel to the actuating drives.
  • the actuators can be designed in such a way that they each have a guide slot into which the guide rails of a guide rail running parallel thereto between the two drive spindles engage, as a result of which the actuators are forcibly guided along the guide rail.
  • the guide rails can also be designed as profile strips arranged next to the drive spindles, for example having a U-profile in cross section, which include a guide channel for receiving a radially outward-pointing guide lug of the actuators.
  • any torsional forces transmitted by the drive spindles to the actuators can be effectively compensated, so that unwanted rotational movements of the actuators around the spindle longitudinal axes are avoided, so that subsequently high actuating speeds and, at the same time, smooth and quiet running of the disk carriers along the drive spindles can be achieved.
  • the disk carriers and/or their actuators have a braking device for the actuators and/or the guide rails.
  • a braking device can be designed, for example, as a simple shoe brake whose contact force can be adjusted.
  • the actuators engages around the associated actuator as a braking device under pretension.
  • the braking effect is achieved as a result of the frictional forces between the actuator and the drive spindle caused by the preload.
  • the actuator forming the braking device can have a peripheral opening so that the actuator does not completely enclose the drive spindle, but grips it in the sense of an elastic clamp under pretension, with the inner diameter of the actuator gripping the spindle on the peripheral side being smaller than the outer diameter of the spindle in accordance with the friction force to be achieved
  • Drive spindle can be selected.
  • the slats be displaceable beyond the closed position against the force of a restoring element.
  • This can be achieved, for example, in that the slat is connected to the slat carrier via a further connecting piece in addition to the slat holder, with the connecting pin engaging in an elongated hole in the slat carrier and being fixed as a restoring element via a rubber buffer inserted in the elongated hole, for example.
  • the lamella holder itself is not rigidly connected to the pivoting unit or the lamella carrier, but can be pivoted at least to such an extent about its pivot axis running transversely to the longitudinal direction of the spindle that the additional connecting piece can move within the elongated hole against the spring force.
  • the slats have additional play in the closed position, so that jamming of overlapping slats is effectively avoided.
  • the additional attachment point of the slat on the slat carrier ensures that the slat is firmly seated both during the adjustment process and in the rest position, so that unwanted vibrations caused, for example, by wind and the resulting rattling noises of the slats are prevented.
  • the invention also relates to a horizontal blind with two drive devices according to the invention, which are arranged at a distance from one another to accommodate slats running horizontally between the drive devices.
  • the two drive devices are synchronized with one another via a common drive.
  • the common drive can comprise a drive shaft, for example, with each of the drive devices being drive-connected to this drive shaft via an angular gear.
  • the respective angle gear assigned to a drive device can comprise an intermediate shaft in order to be able to operate the two drive spindles of a drive device in the same direction.
  • the common drive includes a main drive shaft, which is drive-connected to the bevel gears of the respective drive devices via an intermediate gear and two separate intermediate shafts.
  • the pinion of one of the drive spindles of a drive device that is in engagement with the gear or a pinion of the gear or, in the case of a planetary gear, the gear itself can have a freewheel.
  • a horizontal blind according to the invention has a drive device 1 according to the invention with two parallel adjusting drives 2, 3, which form drive spindles 4, 5.
  • the drive spindles 4, 5 include adjustment gears 6, 7, each of which has gear pitches that decrease towards a rest position.
  • the drive devices 1 also have disk carriers 8, which each comprise two actuators 9, 10, which can be displaced relative to one another in the longitudinal direction of the actuator drives 2, 3 and which each engage in one of the two adjustment gears.
  • the actuators 9, 10 are shifted to each other in the longitudinal direction of the drive spindles 4, 5, that the slats 11 are arranged in an open position.
  • the actuators 9, 10 each have guide lugs 12, which engage radially in the actuating gear 6, 7 and are designed, for example, as guide pins, as is shown in 2 can be seen.
  • the disk carriers 8 comprise a length-adjustable pivoting unit that is articulated on the two actuators 9, 10.
  • the swivel unit has a connecting body 13 with a guide sleeve 14 and a blade holder 15 .
  • the connecting body 13 forms a connecting bracket.
  • the connecting body 13 designed as a connecting bracket also comprises a first bracket section 16 facing the actuator 9 and slidably passing through the guide sleeve 14 , the guide sleeve 14 being rotatably mounted on the actuator 9 via a connecting pin 17 .
  • At right angles to the first bracket section 16 runs a rotatably connected via a bracket clamp seat 18 to the actuator 10 second bracket section 19.
  • a third bracket section 20 runs at right angles to the second bracket section 19 and at an angle of about 45° to the plane spanned by the first and second bracket sections 16, 19 corresponds to the first bracket section 16, inclined by about 45 °.
  • the lamella 11 is inclined by 45° in relation to the longitudinal direction of the spindle and, as a result of a displacement of the two actuators 9, 10 relative to one another from the position in 1 shown open position in the 3 shown closed position can be shifted.
  • the slat holders 15 are aligned in the longitudinal direction of the drive spindles 4, 5, so that the slats 11 partially overlap one another.
  • the actuators 2, 3 are drive-connected to an angular gear 23 and each have a pinion 24, 25.
  • the pinions 24, 25 are each engaged with a pinion 26, 27 of a gear shaft 28 of the bevel gear 23.
  • the transmission shaft 28 comprises a hollow shaft section 29 and an inner shaft section 30 located in the hollow shaft section 29 , the pinion 26 being connected to the hollow shaft section 29 and the pinion 27 being connected to the inner shaft section 30 .
  • the inner shaft section 30 can have a driving pin so that after about one revolution of the inner shaft section 30 the hollow shaft section 29 gripped by the driving pin also rotates.
  • a plate pack 31 brought together to form a rest position is shown as an example, this being made possible as a result of the lower gear pitch of the actuating gears 6, 7 in the respective end sections 21, 22 of the drive spindles 4, 5.
  • FIG 5 and 6 an alternative embodiment of a drive device 1 according to the invention of a horizontal blind is shown.
  • the disk carrier 8 having the pivoting unit comprises a connecting body 13 with an elongated hole 32.
  • the connecting pin 17 articulated on the actuator 10 can be displaced within the elongated hole 32.
  • a connecting pin which engages in a corresponding pin recess 33 of the blade 11 can be provided as the blade holder 15 .
  • the disk carrier 8 can have a restoring element inserted in an elongated hole, for example designed as a rubber buffer 34, and an additional connecting piece to the disk 11, also inserted into the elongated hole.
  • the lamella holder 15, which is designed as a square connecting pin in the alternative embodiment shown, can be pivoted about its connecting axis running transversely to the longitudinal direction of the spindle at least to such an extent that the additional connecting piece for the lamella 11 can move within the elongated hole against the spring force.
  • the slat carrier 8 and/or their actuators 9, 10 can have a braking device.
  • one of the actuators 9 can enclose the associated spindle 4 as a braking device under pretension in the sense of a clamp, as shown in FIG 6 emerges.
  • the actuators 9 , 10 can be guided via one or more guide rails 35 running parallel to the actuators 2 , 3 .
  • the guide rails 35 can, for example, have an essentially U-shaped cross-sectional profile, so that they form a guide channel into which the corresponding guide lugs 36 of the actuators 9, 10 engage and these can thus be positively guided.

Landscapes

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

Claims (7)

  1. Dispositif d'entraînement (1) pour stores horizontaux, avec des supports de lamelle (8) guidés sur des mécanismes de réglage (2, 3) courant parallèlement, dans lequel les mécanismes de réglage (2, 3) forment des broches d'entraînement (4, 5) qui comportent chacune un chemin de réglage (6, 7) hélicoïdale présentant une pente dégressive jusqu'à une position de repos et dans lequel les supports de lamelle (8) comprennent chacun deux organes de réglage (9, 10) mobiles entre eux dans le sens longitudinal des mécanismes de réglage (2, 3) qui pénètrent chacun dans un des deux chemins de réglage (6, 7), caractérisé en ce que les supports de lamelle (8) présentent une unité d'inclinaison réglable en longueur, articulée sur les deux organes de réglage (9, 10), et que les broches d'entraînement (4, 5) sont réglables indépendamment les unes des autres.
  2. Dispositif d'entraînement (1) selon la revendication 1, caractérisé en ce que les organes de réglage (9, 10) comportent des ergots de guidage (12) pénétrant radialement dans le chemin de réglage (6, 7).
  3. Dispositif d'entraînement (1) selon la revendication 1 ou 2, caractérisé en ce que les organes de réglage (9, 10) sont guidés sur un ou plusieurs rails de guidage courant parallèlement aux mécanismes de réglage (2, 3).
  4. Dispositif d'entraînement (1) selon une des revendications 1 à 3, caractérisé en ce que les supports de lamelle et/ou leurs organes de réglage (9, 10) comportent un dispositif de freinage pour les mécanismes de réglage (2, 3) et/ou les rails de guidage.
  5. Dispositif d'entraînement (1) selon la revendication 4, caractérisé en ce qu'un organe de réglage (9) entoure sous une tension initiale comme un dispositif de freinage le mécanisme de réglage (2) qui lui est associé.
  6. Dispositif d'entraînement (1) selon une des revendications 1 à 5, caractérisé en ce que les lamelles (11) peuvent se déplacer au-delà de la position de fermeture en s'opposant à la force d'un élément de rappel (34).
  7. Store horizontal avec deux dispositifs d'entraînement (1) selon une des revendications précédentes, caractérisé en ce que les dispositifs d'entraînement (1) sont disposés à distance l'un de l'autre pour accueillir des lamelles (11) et sont synchronisés l'un avec l'autre par un entraînement commun.
EP19218515.5A 2018-12-20 2019-12-20 Dispositif d'entraînement pour stores horizontaux Not-in-force EP3670818B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT511362018A AT521167B1 (de) 2018-12-20 2018-12-20 Antriebsvorrichtung für Horizontaljalousien

Publications (2)

Publication Number Publication Date
EP3670818A1 EP3670818A1 (fr) 2020-06-24
EP3670818B1 true EP3670818B1 (fr) 2022-09-21

Family

ID=68502115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19218515.5A Not-in-force EP3670818B1 (fr) 2018-12-20 2019-12-20 Dispositif d'entraînement pour stores horizontaux

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EP (1) EP3670818B1 (fr)
AT (1) AT521167B1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2179882A (en) * 1938-09-20 1939-11-14 Durre Allen Blind
US3717195A (en) * 1971-05-14 1973-02-20 G Larranaga Automatic metal louvered safety blind
NO893651L (no) 1989-09-12 1991-03-13 Tore Lyngholm Anordning ved lamellpersienne.
ES2599878T3 (es) * 2008-04-30 2017-02-03 Inmaculada Corella Monzón Mecanismo de sujeción y accionamiento de cierres de lamas orientables y retirables
RU2645326C2 (ru) * 2013-06-07 2018-02-20 Ренсон Санпротекшн-Скринз Нв Ламельная конструкция
KR20160073660A (ko) * 2014-12-17 2016-06-27 주식회사 루버텍코리아 루버 셔터의 슬랫 회동부

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AT521167B1 (de) 2019-11-15
EP3670818A1 (fr) 2020-06-24
AT521167A4 (de) 2019-11-15

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