EP3902971B1 - Drehantrieb für drehvorrichtung eines rollabschlusses - Google Patents

Drehantrieb für drehvorrichtung eines rollabschlusses Download PDF

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Publication number
EP3902971B1
EP3902971B1 EP19829624.6A EP19829624A EP3902971B1 EP 3902971 B1 EP3902971 B1 EP 3902971B1 EP 19829624 A EP19829624 A EP 19829624A EP 3902971 B1 EP3902971 B1 EP 3902971B1
Authority
EP
European Patent Office
Prior art keywords
spring
drive system
main shaft
slider
fixed
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.)
Active
Application number
EP19829624.6A
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English (en)
French (fr)
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EP3902971A1 (de
Inventor
Arnaud Marcassoli
Sébastien Brogly
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.)
Zurfluh Feller SAS
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Zurfluh Feller SAS
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Publication of EP3902971A1 publication Critical patent/EP3902971A1/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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual 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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/60—Spring drums operated only by closure members

Definitions

  • the present invention relates to a system for driving in rotation a winding member of a closing screen apron which can be rolled up around a central axis.
  • a roller shutter or door comprises a winding member, such as a winding tube, on which a flexible apron is fixed, such as an apron formed by blades articulated together.
  • An electric motor drives the rotating drum to open or close the shutter or door.
  • Disengageable pre-loaded spring systems make it possible to restore the energy stored by the pre-loaded spring to raise the deck. Once the spring has released its energy, the spring must be preloaded again by operating a certain number of turns before resetting the disengageable system.
  • FR-2 673 236-A1 FR-2 736 086-A1
  • US-5,975,185-A JP-H11 101 077-A or FR-3 004 745-A3 .
  • the objective of the invention is to propose a new drive system in which the preload of the spring is obtained simply and precisely.
  • the invention relates to a training system according to claim 1.
  • the preloading of the spring is carried out in disengaged mode in a precise and simple manner, the movable cursor allowing the motor to be stopped once the correct number of revolutions has been reached by the simple detection of a peak of torque resulting from the arrival of the cursor at the stop.
  • THE figures 1 to 6 represent a drive system 1 comprising an actuator 3 having an output shaft 5.
  • the output shaft 5 defines a central axis winch, etc.
  • the output shaft 5 is connected to a main shaft 7 of the drive system 1, in such a way that the main shaft 7 is integral in rotation with the output shaft 5.
  • the drive system 1 comprises a rotating element 9 in pivotal connection with the main shaft 7.
  • the rotating element 9 is fixed axially on the main shaft 7.
  • the rotating element 9 is integral in rotation with a winding member of a rollable closing screen apron.
  • the rotating element 9 is connected to a winding tube 11 forming the winding member, around which blades of the apron are wound.
  • the winding tube 11 is formed by a hollow cylinder centered on the central axis X and in which the actuator 3, the output shaft 5, the main shaft 7 and the rotating element 9 are mounted.
  • the drive system 1 comprises a disengageable device 2 which, in an engaged configuration, makes the main shaft 7 and the rotating element 9 integral in rotation, and in a disengaged configuration, disengages in rotation the main shaft 7 and the rotating element 9.
  • This disengageable device 2 comprises a member 13 movable in translation on the main shaft 7 and relative to the rotating element 9.
  • the member 13 is integral in rotation with the main shaft 7.
  • the main shaft 7 having a profile circular making attachment in rotation by direct assembly impossible
  • the drive system 1 comprises an intermediate part 15 provided between the main shaft 7 and the member 13.
  • the intermediate part 15 transmits the rotational movements of the actuator 3 to the member 13 leaving it the possibility of translation along the axis X.
  • the intermediate part 15 has for example a non-circular external profile, complementary to a non-circular profile provided on the inside of the member 13.
  • the rotation of the intermediate part 15 is transmitted to the member 13, while allowing the relative translation of these two parts.
  • the disengageable device 2 comprises disengageable connection means provided on the rotating element 9 and the member 13 which allow them to engage or disengage depending on the axial position of the member 13.
  • the rotating element 9 is equipped first rotational coupling means 92, and the member 13 comprises second rotational coupling means 132.
  • the rotational coupling means 92 and 132 are formed by complementary shapes, such as teeth or splines . In this example, the shapes are circumferentially alternating protruding and hollow reliefs visible to the eye.
  • Figure 3 forming, in coupled configuration, stops in rotation. Any other form can be considered.
  • the first and second rotational coupling means can be formed by a friction clutch system.
  • the coupling means 92 are engaged with the coupling means 132, causing the member 13 to become joined in rotation with the rotating element 9.
  • the coupling means 92 are in a second distant position and are no longer engaged with the coupling means 132, causing a separation in rotation of the member 13 with the rotating element 9.
  • the member 13 has undergone a translation along the axis X opposite the rotating element 9 between a first close position and a second distant position.
  • the disengageable device 2 of the drive system 1 comprises elastic means which push the member 13 back into the engaged configuration by default. These elastic means are formed by a compression spring 19, interposed between the member 13 and a flange 152 of the intermediate part 15.
  • the drive system 1 also includes a control connected to the member 13, and adapted to move the member 13 towards its disengaged configuration, against the force of the spring 19.
  • this control can be provided in the form of a cable 21 operable by a user, and connected to the member 13 by a connecting piece 23. When the cable 21 is pulled, the member 13 is moved away from the rotating element 9, which 'drives towards its disengaged configuration.
  • the drive system 1 comprises at least one torsion spring 25 which drives the rotating element 9 in rotation around the central axis X such that the apron is driven towards a wound configuration.
  • the purpose of this torsion spring 25 is to provide a restoring torque on the apron towards its wound position in the event of an emergency if the actuator 3 is inoperative.
  • the torsion spring 25 is interposed between the main shaft 7 and the rotating element 9.
  • the torsion spring 25 is arranged in series between the actuator 3 and the winding tube 11.
  • actuator 3 drives the main shaft 7, which drives the torsion spring 25, which drives the rotating element 9, which drives the winding tube 11.
  • the torsion spring 25 comprises a first end 250 fixed to the main shaft 7, and a second end 252 fixed to the rotating element 9.
  • the first end 250 and the second end 252 can be respectively fixed to the main shaft 7 and to the rotating element 9 by any suitable means, for example screws.
  • the torsion spring 25 To raise the deck, a preload is applied to the torsion spring 25, so that it stores energy and can deliver sufficient torque to raise the deck when the need arises.
  • the spring 25 In the disengaged configuration of the member 13, the spring 25 is able to be preloaded by a relative rotation between the main shaft 7 and the rotating element 9.
  • the spring 25 in an unloaded or free state, the spring 25 cannot generate a relative rotation of the main shaft 7 and the rotating element 9 , but when rotation between the main shaft 7 and the rotating element 9 is applied, the spring 25 is in a stressed, or pre-stressed, state. In this state, it undergoes an internal stress which tends to exert a relative rotation between the main shaft 7 and the rotating element 9 relative to each other, such that the apron is raised.
  • drive system 1 The operation of drive system 1 is as follows. In normal operating configuration, the rotating element 9 and the member 13 are in engaged configuration. The torque generated by the actuator 3 is transmitted to the main shaft 7 which transmits it to the member 13 then finally it passes from the member 13 to the rotating element 9 thanks to the disengageable connection means 92 and 132. torque of the actuator 3 is found at the level of the rotating element 9. The previously pre-stressed torsion spring 25 keeps the rotating element 9 under tension which, once released, will be rotated, then will drive the winding tube 11 But as long as the member 13 and the rotating element 9 are engaged, the torsion spring 25 cannot release its energy.
  • the drive system 1 has the advantage of being resettable and therefore reusable. In fact, when the disengagement command is triggered, the drive system 1 is in the disengaged configuration and the torsion spring 25 releases its energy. Before releasing the cable 21 and switching back to the engaged configuration to return to normal operation, it is possible to re-tension the torsion spring 25, or to return it to a pre-stressed state, because its first end 250 is fixed to the main shaft 7 which is free to rotate, while the second end 252 is linked to the rotating element 9 which is then fixed to rotate. A rotation is applied to the torsion spring 25, by means of the actuator 3, for example a predefined number of turns depending on the torque necessary for raising the apron, then the cable 21 is released to return to the engaged configuration again.
  • a limit switch device is integrated into the drive system 1.
  • This limit switch device comprises a threaded rod 27 secured in rotation to the main shaft 7 and a slider 29 screwed in helical connection on the threaded rod 27 and fixed in rotation relative to the winding member 11, such way that the cursor 29 is mobile in translation along the central axis X of system 1.
  • the cursor 29 is movable between a first position, shown in Figure 5 , in which the spring 25 is not preloaded and the actuator 3 is free to preload the spring 25 by free rotation between the main shaft 7 and the rotating element 9, and a second position, shown in Figure 6 , in which the spring 25 is preloaded and the slider 29 abuts against an element secured to the main shaft 7 in such a way that the actuator 3 is automatically stopped.
  • the system 1 comprises a ring 31 fixed to the output shaft 5 of the actuator 3 and to which a first end 270 of the threaded rod 27 is fixed.
  • the system 1 also includes a ring 33 fixed to the main shaft 7 and on which the spring 25 and a second end 272 of the threaded rod 27 are fixed. By its connection with the threaded rod 27, the ring 31 is also integral with the main shaft 7.
  • the operation of the drive system 1 during the reset of the spring 25 is as follows. In the disengaged configuration, following the operation of the control 21, the spring 25 released its energy to raise the roller shutter apron. To reset the spring 25, or in other words, to pre-stress it, it is necessary to apply a certain angle of rotation to it, equivalent to a given number of turns of the actuator 3. The shutter and therefore the tube 11 and the rotating element 9 being in a blocked position due to the raised configuration of the shutter, it is necessary to rotate the main shaft 7 to reset the spring 25, before returning the system 1 to the engaged configuration.
  • the slider 29 is located on the threaded rod 27 in a position abutting against the ring 33 as is visible on the Figure 5 .
  • the slider 29 can be found in an intermediate position between the ring 33 and the ring 31, as is visible in the Figure 4 .
  • the preload of the spring 25 is then obtained, and the system 1 can be returned to the engaged configuration.
  • the system 1 includes net stop shapes provided in a complementary manner on the slider 29 and on the ring 31.
  • These shapes can be, for example, abutment surfaces 310 and 292 provided respectively on the ring 31 and the slider 29. These surfaces 310 and 292 are flat and oriented along a plane including the main axis X.
  • similar stopping surfaces 330 and 290 can be provided respectively on the ring 33 and on the slider 29.
  • these shapes can be a polygonal profile, in particular an octagonal profile visible to the figures 3 And 4 .
  • the system 1 may comprise means for damping the stopping of the cursor 29 against the rings 31 and/or 33, for example blocks of elastomeric material on the abutment surfaces, parts in friction, etc.
  • the system 1 can comprise a control means integrated in the limit switch device or in an element linked to the spring 25 to make it possible to signal to a user that the spring 25 is armed and ready to function.
  • This control means can for example include a piezoelectric cell.
  • the system 1 can comprise a safety system integrated into the limit switch device, or in an element linked to the disengageable device 2, making it possible to prohibit the operation of the rolling shutter as long as spring 25 remains disarmed.
  • the system 1 can comprise a control means integrated in the limit switch device or in an element linked to the spring 25, making it possible to prove that the drive system 1 has operated, and that the raising of the rolling shutter by means of the release of spring 25 has been obtained.
  • a control means integrated in the limit switch device or in an element linked to the spring 25, making it possible to prove that the drive system 1 has operated, and that the raising of the rolling shutter by means of the release of spring 25 has been obtained.
  • the drive system 1 may comprise not a single spring 25 but several elastic elements, in particular springs.
  • springs for example, several coaxial springs arranged in series or in parallel can be used.
  • the springs will be arranged coaxially, each spring exerting a torque on the next, the last being connected to the rotating element 9 to transmit the overall torque of the spring series.
  • the springs will be arranged coaxially, each spring exerting its torque on the rotating element.
  • the spring(s) can also be mounted around a conical core, that is to say a part centered on the central axis X and whose profile along the central axis X is not rectilinear. During preloading, the spring 25 would be wound against this part and the deformation of the spring 25 would be modified by cooperation with the non-rectilinear profile of this part, generating a non-linear stiffness when the spring 25 is released.

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

Claims (10)

  1. Drehantrieb (1) zum Drehen eines Wickelorgans (11) einer um eine zentrale Achse (X) aufrollbaren Verschlussblendenschürze, wobei der Drehantrieb umfasst:
    - einen Aktuator (3), der eine Abtriebswelle (5) antreibt,
    - eine Hauptwelle (7), die von der Abtriebswelle (5) angetrieben wird,
    - mindestens eine Torsionsfeder (25) und
    - eine auskuppelbare Vorrichtung (2),
    dadurch gekennzeichnet, dass:
    - der Drehantrieb (1) ein drehbares Element (9) umfasst, das in Bezug auf die Hauptwelle (7) drehbar und translationsfest ist und drehfest mit dem Wickelorgan (11) verbunden ist,
    - die Torsionsfeder (25) mit einem Ende (250) an der Hauptwelle (7) und mit dem anderen Ende (252) an dem drehbaren Element (9) befestigt ist,
    - die auskuppelbare Vorrichtung (2) in einer eingekuppelten Konfiguration die Hauptwelle (7) und das drehbare Element (9) drehfest miteinander verbindet und in einer ausgekuppelten Konfiguration die Hauptwelle (7) und das drehbare Element (9) in Drehung entkoppelt, während die Torsionsfeder (25) in der entkoppelten Konfiguration dazu geeignet ist, durch eine relative Drehung zwischen der Hauptwelle (7) und dem drehbaren Element (9) vorgespannt zu werden, und die zuvor vorgespannte Torsionsfeder (25) das drehbare Element (9) in eine Drehung um die zentrale Achse (X) versetzt, so dass die Schürze in eine aufgerollte Konfiguration getrieben wird,
    - der Drehantrieb (1) außerdem eine Gewindestange (27), die drehfest mit der Hauptwelle (7) verbunden ist, und einen Schieber (29) umfasst, der auf die Gewindestange (27) geschraubt ist und in Bezug auf das Wickelorgan (11) feststehend ist, so dass der Schieber (29) entlang der zentralen Achse (X) des Systems (1) translatorisch beweglich ist, zwischen einer ersten Position, in der die Feder (25) nicht vorgespannt ist, und der Aktuator (3) die Feder (25) durch freie Drehung zwischen der Hauptwelle (7) und dem drehbaren Element (9) vorspannen kann, und einer zweiten Position, in der die Feder (25) vorgespannt ist und der Schieber (29) an einem Element (31) anliegt, das fest mit der Hauptwelle (7) verbunden ist, so dass der Aktuator (3) automatisch gestoppt wird.
  2. Drehantrieb nach Anspruch 1, dadurch gekennzeichnet, dass er einen Ring (31) umfasst, der das Element (31) bildet, das fest mit der Hauptwelle (7) verbunden ist, die an der Abtriebswelle (5) des Aktuators (3) befestigt ist und an dem ein erstes Ende (270) der Gewindestange (27) befestigt ist.
  3. Drehantrieb nach Anspruch 2, dadurch gekennzeichnet, dass er einen Ring (33) umfasst, der an der Hauptwelle (7) befestigt ist und an dem die Feder (25) und ein zweites Ende (272) der Gewindestange (27) befestigt sind.
  4. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er Nettoanschlagsformen (292, 290, 310, 330) umfasst, die komplementär am Schieber (29) und an dem Ring (31) vorgesehen sind, der an dem ersten Ende (270) der Gewindestange (27) befestigt ist, und/oder an dem Schieber (29) und an dem Ring (33), der an einem zweiten Ende (272) der Gewindestange (27) befestigt ist.
  5. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er Mittel zur Dämpfung des Anschlags des Schiebers (29) gegen das mit der Hauptwelle (7) fest verbundene Element (31) umfasst.
  6. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder (25) mit einem konischen Kern zusammenwirkt.
  7. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er ein Prüfmittel umfasst, das dazu geeignet ist, zu signalisieren, dass die Feder (25) gespannt und betriebsbereit ist.
  8. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er ein Sicherheitssystem umfasst, mit dem das Manövrieren der Schürze unterbunden werden kann, solange die Feder (25) entspannt bleibt.
  9. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass er ein Prüfmittel umfasst, mit dem nachgewiesen werden kann, dass die Freigabe der Feder (25) funktioniert hat.
  10. Drehantrieb nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schieber (29) und das Wickelorgan (11) eine komplementäre Geometrie aufweisen, die die Translation des Schiebers (29) in Bezug auf das Wickelorgan (11) entlang der zentralen Achse (X) des Systems (1) und die Blockierung der Drehung des Schiebers (29) in Bezug auf das Wickelorgan (11) entlang der zentralen Achse (X) ermöglicht.
EP19829624.6A 2018-12-24 2019-12-23 Drehantrieb für drehvorrichtung eines rollabschlusses Active EP3902971B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1874123A FR3090726B1 (fr) 2018-12-24 2018-12-24 Système d’entrainement en rotation d’un organe d’enroulement d’un tablier d’écran de fermeture enroulable
PCT/EP2019/086907 WO2020136161A1 (fr) 2018-12-24 2019-12-23 Système d'entrainement en rotation d'un organe d'enroulement d'un tablier d'écran de fermeture enroulable

Publications (2)

Publication Number Publication Date
EP3902971A1 EP3902971A1 (de) 2021-11-03
EP3902971B1 true EP3902971B1 (de) 2024-04-17

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EP19829624.6A Active EP3902971B1 (de) 2018-12-24 2019-12-23 Drehantrieb für drehvorrichtung eines rollabschlusses

Country Status (3)

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EP (1) EP3902971B1 (de)
FR (1) FR3090726B1 (de)
WO (1) WO2020136161A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673236B1 (fr) * 1991-02-26 1998-08-14 Thierry Kraemer Dispositif de securite pour portes a rideau relevable.
FR2736086A1 (fr) * 1995-06-28 1997-01-03 Bubendorff Sa Volet roulant motorise
JPH11101077A (ja) * 1997-09-29 1999-04-13 Tostem Corp シャッター
US5975185A (en) * 1998-08-05 1999-11-02 Qmi Roll Shutter Supply Pop up safety device for rolling shutters
FR3004745B3 (fr) * 2013-04-17 2017-01-27 Somfy Sas Systeme d'entrainement en rotation d'un tambour d'enroulement, ecran de fermeture enroulable et methode de pilotage

Also Published As

Publication number Publication date
WO2020136161A1 (fr) 2020-07-02
FR3090726A1 (fr) 2020-06-26
FR3090726B1 (fr) 2021-04-23
EP3902971A1 (de) 2021-11-03

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