EP1749964B1 - Drive system for a rolling shutter strap - Google Patents

Drive system for a rolling shutter strap Download PDF

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Publication number
EP1749964B1
EP1749964B1 EP06009318A EP06009318A EP1749964B1 EP 1749964 B1 EP1749964 B1 EP 1749964B1 EP 06009318 A EP06009318 A EP 06009318A EP 06009318 A EP06009318 A EP 06009318A EP 1749964 B1 EP1749964 B1 EP 1749964B1
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EP
European Patent Office
Prior art keywords
gear wheel
concealed
winder according
gear
plates
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Not-in-force
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EP06009318A
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German (de)
French (fr)
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EP1749964A3 (en
EP1749964A2 (en
Inventor
Hans Arnhold
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Individual
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Individual
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Priority to EP07023656A priority Critical patent/EP1903177B1/en
Publication of EP1749964A2 publication Critical patent/EP1749964A2/en
Publication of EP1749964A3 publication Critical patent/EP1749964A3/en
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Publication of EP1749964B1 publication Critical patent/EP1749964B1/en
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    • 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
    • E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
    • 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
    • E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
    • E06B2009/785—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles by belts, straps, bands, tapes, cords, tassels

Definitions

  • Window shutters often have a winding shaft rotatably mounted above the window in a wall recess, to which the roller shutter armor is attached.
  • a winding shaft In order to actuate the winding shaft in the sense of opening or closing the roller shutter, sits on the winding shaft a belt pulley on which a roller shutter belt is attached.
  • the roller shutter belt runs along the wall from the upper edge of the window down. So that the roller shutter belt does not hang around freely when the roller shutter is raised, the unneeded end of the roller shutter belt is wound on a belt winder inserted in the wall, which is pretensioned in the winding-up direction via a spring motor.
  • the installation space in the niche is designed for such spring winder and standardized.
  • the depth of the wall recess receiving the spring winder is relatively low.
  • This Gurtwickler includes a rotatably mounted between two boards Gurtbandsay, which is rotatably coupled with a correspondingly large gear.
  • this large gear of the belt pulley is connected in gear with an electric motor, which sets the belt pulley either in the sense of winding or unwinding of the roller shutter in turns.
  • the axis of the motor is vertical with the webbing winder mounted ready for use.
  • a worm seated on the motor shaft meshes with a worm wheel, which is non-rotatably coupled with a spur gear.
  • the spur gear drives a large gear of agnatrys whose pinion meshes with the gear of the Gurtbandusion.
  • the axes of the worm wheel of the intermediate layer and the Gurtbandin are arranged substantially vertically above one another, so that the known Gurtwickler claimed considerable space in the vertical direction. Its dimensions are so large that it would not be installable in a wall niche.
  • a multi-stage transmission between the engine and the Gurtwickelusion is present.
  • the transmission starts on the drive motor with a worm gear, on the one hand provides a high reduction, on the other hand, the required deflection by 90 °, so that the axis of the motor can be aligned at right angles to the axis of rotation of the Gurtwickelusion.
  • the worm gear sitting in this way, the worm gear at a point at which the torque is still relatively small, which reduces the risk of dodge the screw under load.
  • the gear pairs sitting between them are axially parallel so that they approach the axis of the Gurtwickelusion.
  • the worm of the engine dives between two adjacent gear sets, namely that which carries the worm wheel and the one which lies operationally in the direction of the belt winding disk.
  • the power flow seen from the engine, so to speak initially runs away from the belt winding disk, and then leads in the direction of the belt winding disk.
  • This has the significant advantage that the space that takes the worm wheel in the clearance of the engine can be accommodated.
  • the electric motor can be brought closer to the diameter of the worm wheel to the Gurtwickelusion and the space of Gurtwicklers be shortened by the decisive amount.
  • the design of the new Unterputzgurtwicklers is simplified if it has two transmission boards, which are formed essentially of flat sheets.
  • the transmission boards are parallel to each other.
  • a further simplification is achieved when the mechanical connection between the gear plates is made across the axes of the gear sets, for example by riveting the axles to the gear plates.
  • a space saving in the thickness direction is achieved when the Gurtwickelkern is open on the opposite side of the winding core gear.
  • the space thus saved can be used to increase the thickness of the winding core gear and thus increase its life at high load.
  • the decoupling of the gear by moving can also be used in the Gurtwickler with reduced space.
  • a loose roller In order to detect the movement of the belt and to determine whether the roller shutter belt, for example, rests on the windowsill, a loose roller is used in the simplest case, which is mounted loosely rotatable and leads over the in use state of the roller shutter belt.
  • the Losrolle can be rotatably connected in addition to a front end with a signal generator disc.
  • the signal transmitter disk carries in the circumferential direction equidistantly distributed fields, with each two adjacent fields differ with respect to the reflection properties.
  • a particularly high strength is achieved if all axes are mounted on which gears, gear sets or idler rollers are riveted at both ends with the transmission boards.
  • the attachment of the engine between the gear plates is simplified when a molded plastic part is used for this purpose. As a result, bends are avoided on the sheet metal blanks, which can always have tolerances in terms of bending angle, which is quite annoying during assembly.
  • the engine mount can be fitted with lugs in corresponding openings in the PCBs be kept reliable and free of play.
  • the installation length of the motor corresponds approximately to the diameter of the winding core gear and thus the diameter of the maximum possible Gurtwickels.
  • a maximum diameter of the drive motor is achieved when the board in the region of the motor housing having mutually aligned recesses. In this way, the diameter of the motor can be made at least as large as corresponds to the outer distance of the transmission boards.
  • the actuator may be movably mounted on one of the transmission boards,
  • the wedge surface and the slider may be formed by a Blechstanz- and -biegeteil.
  • the slider can be provided on the front side with an actuator.
  • Fig. 1 shows a section of a living room wall 1 with a window contained therein 2.
  • a shutter box 3 in which in a known manner a winding shaft attached thereto roller shutter is housed. From the bottom of the shutter box 3 performs a roller shutter belt 4 out.
  • the Unterputzgurtwickler 6 has two mutually parallel, smooth boards 7 and 8, which are designed as sheet metal stampings and cut approximately rectangular. A narrow side of the boards 7, 8 faces the front panel 5. The boards 7, 8 are spaced apart and take between them the transmission of Unterputzgurtwicklers 6.
  • a loose roller 9 is rotatably mounted on an axis 10 adjacent to the front plate 5, which is riveted to the two boards 7, 8.
  • the idler roller 9 is rotatably coupled to a signal transmitter disk 11.
  • the signal transmitter disk 11 has equidistant distributed fields 12 and 13 with different reflection properties along the circumference.
  • the signal transmitter disk 11 is scanned by a combination of light-emitting diode and photodiode (not shown further) in order to obtain a signal about the behavior of the winding belt 4.
  • Gurtwickelkern 15 Axially parallel to the guide roller 9 is a Gurtwickelkern 15 rotatably mounted on a fixed riveted with the Paltinen 7, 8 axis 14.
  • the gear 16 is aligned with the signal generator disk 11. Its tip diameter is larger than the diameter of the maximum possible coil on the Gurtwickelkern 15th
  • the two boards 7 and 8 are provided with rectangular recesses 18 which are congruent to each other and of which only those contained in the board 8 suggestively in Fig. 2 can be seen. They start from the underside and the rear narrow side of the boards 7, 8. At the upper end of the two recesses 18 sits a motor support 19, which is designed as a plastic molded part. With the help not further recognizable lateral pins, which are cut away due to the representation, the motor mount 19 is positively anchored in corresponding punched openings in the two boards 7 and 8.
  • the motor mount 19 forms a downwardly facing mounting surface 20 to which the motor 17 is flanged with its upwardly facing end face.
  • On the motor shaft is rotatably a worm 21st
  • the worm 21 meshes with a worm wheel 22.
  • the worm wheel 22 is, together with the integrally molded pinion 23, rotatably mounted on an axle 24.
  • the Worm wheel 22 and the pinion 23 form a first gear set.
  • the axis 24 of this gear set manufactured as an injection molded part is in turn riveted at both ends with the two boards 7 and 8.
  • the worm wheel 22, relative to the worm 21, is located on that side which lies away from the belt winding core 15.
  • the worm wheel 22 is in the region of that part of the clearance of the motor 17, which lies to the back of Gurtwicklers 6.
  • Significant space is saved by this construction measure, compared with an arrangement in which the screw 21 based on Fig. 3 right next to the worm wheel 22 is located.
  • the installation space to the rear ie viewed in the depth of the wall, would be larger by the diameter of the worm wheel 22 plus the diameter of the worm 21.
  • the second gear set 25 is composed of a gear 26 and a rotatably coupled therewith pinion 27. Both gears 26, 27 are for example made in one piece as an injection molded part.
  • the gear 26 runs directly adjacent to the inside of the board 8
  • a hub 28 is formed adjacent to the pinion 27, which supports it on the inside of the other board 7.
  • the gear set 25 is rotatably mounted on the riveted axis 29 at both ends.
  • a third gear set 30 finally transmits the torque from the gear set 25 to the winding core gear 16.
  • the gear set 30 includes a gear 31 which meshes with the pinion 27 and via a hub 32 in the axial direction at a corresponding distance from the inside of the board eighth is held.
  • a second with the gear 31 rotatably coupled gear 33 meshes with the winding core gear 16.
  • the gear set 30 is in turn mounted on a stationary shaft 34, which is riveted at both ends with the boards 7 and 8.
  • the axes 10, 14, 24, 29 and 34 simultaneously form the pillars by which the two boards 7 and 8 are fastened together.
  • the power for the motor 17 is turned on, the Gurtwickeltechnikrad 16 is rotated about the worm wheel 22, the pinion 23, the gear set 25 and the gear set 30 in turns.
  • the roller shutter belt is wound on the winding core 15 accordingly.
  • the gearbox is self-locking.
  • the roller shutter remains at the respective height.
  • the lowering of the roller shutter is done by the motor 17 is rotated in the reverse direction in revolutions.
  • Fig. 4 shows a development of the gear set 30.
  • the lying between the motor 17 and the Gurtwickelkern 15 transmission is self-locking as mentioned.
  • the blocking effect is achieved by the interaction of the worm 21 with the worm wheel 22.
  • This has the consequence that in the event of a fault in the flush-mounted belt winder 6, the roller shutter belt 4 may no longer be able to be relaxed and disassembly from the wall opening would be virtually impossible, unless the user cuts through the roller shutter belt 4.
  • the gear set 30 is according to Fig. 4 educated.
  • the gear 33 carries, as Fig. 4 can recognize, integrally formed, a coaxial pin 40 which is provided with a spline 41.
  • the spline 41 is complementary to a spline 42, which is located inside a coaxial tubular extension 43 which is integrally formed on the gear 31.
  • a compression spring 44 concentrically surrounds the axis 34.
  • the compression spring 44 bears with one end on the free end face of the pin 40, while it is supported at its other end at the bottom of the bore in the tubular extension 43. In this way, the two gears 31 and 33 are biased away from each other in the axial direction. This means that the compression spring 44 ensures that the collar 32 rests against the inside of the board 8, while the gear 33 slides with its outer flat side on the inside of the board 7.
  • the slider 45 is a Blechstanz- and -biegeteil and consists of an elongated flat stem 46 which is angled at its front end, which is the front panel 5, to form an actuator 47 about a vertical axis.
  • the stem 46 In the rear region of the stem 46 is also angled, but about a horizontal axis and forms a triangular part, which serves as a wedge 48.
  • the wedge 48 protrudes through an opening indicated in dashed lines at 49 in the circuit board 7 and forms a free edge 50.
  • the handle 46 is guided on the outside of the board 7 in there existing outwardly notched tabs, so that the actuator 47, as in Fig. 2 indicated, from the front in front of the signal disk 11 is visible. Seen from the front, the wedge 48 is behind the gear 33, slightly below the hub 28. Its tip points towards the gear 33, while the broad end is aligned with the back of Gurtwicklers 6. At rest, the wedge does not touch the gear 33. With the help of the actuator 47 is ensured in cooperation with the front panel 5 that the wedge 48 is pushed back and out of engagement with the gear 33 is held.
  • the force flow between the winding core 15 and the drive motor 17 can be interrupted if necessary.
  • the slider 45 is pulled by means of the angled actuator 47 together with the wedge 48 forward to the gear 33 out.
  • the free edge 50 comes into engagement with the gear 33. Since the edge 50 runs obliquely to the direction of movement of the slider 45, the edge 50 at the point of contact with the gear 33 penetrates more and more into the space between the two boards 7 and 8. As a result, the gear 33 is displaced against the action of the spring 44 in the direction of the gear 31.
  • the height of the wedge 48 is so dimensioned that at the end of the stroke of the slider 45, the gear 33 is moved axially to the side by the thickness of the winding core gear 16, whereby the engagement between the two gears 16 and 33 is canceled.
  • the winding core 15 can thus rotate freely and the belt 4 relax.
  • At least one of the gear wheels is displaceable in the axial direction in order to interrupt the power flow from the winding core to the drive motor so that the roller shutter belt can be relaxed.

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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)
  • Power-Operated Mechanisms For Wings (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The winder has two plates (7, 8) and a belt reel core (15), which is swivellingly stored between both plates and connected at the front side with a reel core gear wheel (16). A first gear wheel set (30) is swivellingly stored between the plates and a second gear wheel set (25) is swivellingly stored between the plates. A pinion (27) having a gear wheel (31) of the first gear wheel set for a third gear wheel set and a front gear wheel (23) is provided with a driving motor (17), whose motor shaft connects to the gear of the third gear wheel.

Description

Fensterrollläden weisen eine oberhalb des Fensters häufig in einer Mauernische drehbar gelagerte Wickelwelle auf, an der der Rollladenpanzer befestigt ist. Um die Wickelwelle im Sinne eines Öffnens oder Schließens des Rollladenpanzers zu betätigen, sitzt auf der Wickelwelle eine Gurtscheibe, an der ein Rollladengurt befestigt ist. Der Rollladengurt läuft längs der Wand von der Fensteroberkante nach unten. Damit der Rollladengurt bei aufgezogenem Rollladenpanzer nicht frei herumhängt, wird das nicht benötigte Ende des Rollladengurtes auf einem in der Wand eingelassenen Gurtwickler aufgewickelt, der über ein Federmotor im Aufwickelsinne vorgespannt ist.Window shutters often have a winding shaft rotatably mounted above the window in a wall recess, to which the roller shutter armor is attached. In order to actuate the winding shaft in the sense of opening or closing the roller shutter, sits on the winding shaft a belt pulley on which a roller shutter belt is attached. The roller shutter belt runs along the wall from the upper edge of the window down. So that the roller shutter belt does not hang around freely when the roller shutter is raised, the unneeded end of the roller shutter belt is wound on a belt winder inserted in the wall, which is pretensioned in the winding-up direction via a spring motor.

Der Einbauraum in der Wandnische ist auf solche Federwickler ausgelegt und auch normiert.The installation space in the niche is designed for such spring winder and standardized.

Insbesondere ist die Tiefe der Mauernische, die den Federwickler aufnimmt, verhältnismäßig gering.In particular, the depth of the wall recess receiving the spring winder is relatively low.

Darüber hinaus ist es bekannt, den Federwickler durch einen elektrisch betriebenen Gurtwickler zu ersetzen. Hierbei begrenzt die Tiefe der Mauer den Durchmesser des benutzten Elektromotors und/oder den maximal möglichen Wickel an Gurt. Letzteres bestimmt die zulässige Höhe des Rollladenpanzers.In addition, it is known to replace the spring winder by an electrically operated Gurtwickler. in this connection limits the depth of the wall the diameter of the electric motor used and / or the maximum possible winding belt. The latter determines the permissible height of the roller shutter.

Aus der EP 1 520 220 A2 ist ein Aufputzgurtwickler für Rollladengurte bekannt. Dieser Gurtwickler enthält eine zwischen zwei Platinen drehbar gelagerte Gurtbandscheibe, die mit einem entsprechend großen Zahnrad drehfest gekuppelt ist. Über ein mehrstufiges Getriebe ist dieses große Zahnrad der Gurtbandscheibe mit einem Elektromotor getrieblich verbunden, der die Gurtbandscheibe wahlweise im Sinne des Aufwickelns oder des Abwickelns des Rollladengurtes in Umdrehungen versetzt. Die Achse des Motors steht bei gebrauchsfähig montiertem Gurtbandwickler senkrecht. Ein auf der Motorwelle sitzende Schnecke kämmt mit einem Schneckenrad, das drehfest mit einem Stirnzahnrad gekuppelt ist. Das Stirnzahnrad treibt ein großes Zahnrad eines Zwischengeleges, dessen Ritzel mit dem Zahnrad der Gurtbandscheibe kämmt.From the EP 1 520 220 A2 is a surfacing belt winder for roller shutter belts known. This Gurtwickler includes a rotatably mounted between two boards Gurtbandscheibe, which is rotatably coupled with a correspondingly large gear. About a multi-stage gearbox, this large gear of the belt pulley is connected in gear with an electric motor, which sets the belt pulley either in the sense of winding or unwinding of the roller shutter in turns. The axis of the motor is vertical with the webbing winder mounted ready for use. A worm seated on the motor shaft meshes with a worm wheel, which is non-rotatably coupled with a spur gear. The spur gear drives a large gear of a Zwischengeleges whose pinion meshes with the gear of the Gurtbandscheibe.

Die Achsen des Schneckenrads des Zwischengeleges und der Gurtbandscheibe sind im Wesentlichen vertikal übereinander angeordnet, so dass der bekannte Gurtwickler erheblichen Platz in vertikaler Richtung beansprucht. Seine Abmessungen sind so groß, dass er nicht in eine Mauernische einbaubar wäre.The axes of the worm wheel of the intermediate layer and the Gurtbandscheibe are arranged substantially vertically above one another, so that the known Gurtwickler claimed considerable space in the vertical direction. Its dimensions are so large that it would not be installable in a wall niche.

Ausgehend hiervon ist es Aufgabe der Erfindung, einen elektrisch betriebenen Gurtwickler zu schaffen, der in die Maueröffnung hineinpasst, die für einen Federwickler vorgesehen ist.Based on this, it is an object of the invention to provide an electrically operated Gurtwickler that fits into the wall opening, which is provided for a spring winder.

Diese Aufgabe wird erfindungsgemäß mit einem Gurtwickler mit den Merkmalen des Anspruches 1 gelöst.This object is achieved with a Gurtwickler with the features of claim 1.

Bei dem erfindungsgemäßen Unterputzgurtwickler ist ein mehrstufiges Getriebe zwischen dem Motor und der Gurtwickelscheibe vorhanden. Das Getriebe beginnt an dem Antriebsmotor mit einem Schneckengetriebe, das einerseits eine hohe Untersetzung liefert, andererseits die erforderliche Umlenkung um 90°, damit die Achse des Motors rechtwinklig zu der Drehachse der Gurtwickelscheibe ausgerichtet sein kann. Außerdem sitzt auf diese Weise das Schneckengetriebe an einer Stelle, an der das Drehmoment noch verhältnismäßig klein ist, was die Gefahr des Ausweichens der Schnecke bei Belastung vermindert.In the Unterputzgurtwickler invention a multi-stage transmission between the engine and the Gurtwickelscheibe is present. The transmission starts on the drive motor with a worm gear, on the one hand provides a high reduction, on the other hand, the required deflection by 90 °, so that the axis of the motor can be aligned at right angles to the axis of rotation of the Gurtwickelscheibe. In addition, sitting in this way, the worm gear at a point at which the torque is still relatively small, which reduces the risk of dodge the screw under load.

Die dazwischen sitzenden Zahnradpaare liegen achsparallel so, dass sie sich an die Achse der Gurtwickelscheibe annähern.The gear pairs sitting between them are axially parallel so that they approach the axis of the Gurtwickelscheibe.

Aus Platzgründen taucht die Schnecke des Motors zwischen zwei benachbarte Zahnradsätze ein, nämlich dem der das Schneckenrad trägt und dem, der betrieblich in Richtung auf die Gurtwickelscheibe liegt. Der Kraftfluss vom Motor aus gesehen, läuft sozusagen zunächst einmal von der Gurtwickelscheibe weg, um dann in Richtung auf die Gurtwickelscheibe zu führen. Dies hat den wesentlichen vorteil, dass der Bauraum den das Schneckenrad in Anspruch nimmt im Lichtraumprofil des Motors untergebracht werden kann. Auf diese Weise kann der Elektromotor um den Durchmesser des Schneckenrades dichter an die Gurtwickelscheibe herangebracht werden und der Bauraum des Gurtwicklers um das entscheidende Maß verkürzt werden.For reasons of space, the worm of the engine dives between two adjacent gear sets, namely that which carries the worm wheel and the one which lies operationally in the direction of the belt winding disk. The power flow seen from the engine, so to speak, initially runs away from the belt winding disk, and then leads in the direction of the belt winding disk. This has the significant advantage that the space that takes the worm wheel in the clearance of the engine can be accommodated. In this way, the electric motor can be brought closer to the diameter of the worm wheel to the Gurtwickelscheibe and the space of Gurtwicklers be shortened by the decisive amount.

Bei elektrisch betriebenen Systemen kann es immer geschehen, dass irgendwelche Teile versagen und der Gurtwickler ausgebaut werden muss. Dabei hat höchste Priorität die Erhaltung des Gurtes. Sein Wechseln ist insbesondere im Bereich der Wickelwelle außerordentlich schwierig, weshalb ein Ausbau auch bei gestrafftem Gurt möglich sein muss, ohne den Gurt zu beschädigen.In electrically operated systems, it can always happen that any parts fail and the Gurtwickler must be removed. The highest priority is the maintenance of the belt. His changing is extremely difficult, especially in the field of winding shaft, which is why an expansion even with a streamlined belt must be possible without damaging the belt.

Die Gestaltung des neuen Unterputzgurtwicklers wird vereinfacht, wenn er zwei Getriebeplatinen aufweist, die im Wesentlichen aus ebenen Blechen gebildet sind. Die Getriebeplatinen liegen zueinander parallel.The design of the new Unterputzgurtwicklers is simplified if it has two transmission boards, which are formed essentially of flat sheets. The transmission boards are parallel to each other.

Eine weitere Vereinfachung wird erreicht, wenn die mechanische Verbindung zwischen den Getriebeplatinen über die Achsen der Zahnradsätze hergestellt wird, beispielsweise indem die Achsen mit den Getriebeplatinen vernietet werden.A further simplification is achieved when the mechanical connection between the gear plates is made across the axes of the gear sets, for example by riveting the axles to the gear plates.

Eine Platzersparnis in Dickenrichtung wird erreicht, wenn der Gurtwickelkern auf der dem Wickelkernzahnrad gegenüberliegenden Seite offen ist. Der so eingesparte Platz kann dazu genutzt werden, die Dicke des Wickelkernzahnrades zu vergrößern und somit dessen Lebensdauer bei hoher Belastung zu erhöhen.A space saving in the thickness direction is achieved when the Gurtwickelkern is open on the opposite side of the winding core gear. The space thus saved can be used to increase the thickness of the winding core gear and thus increase its life at high load.

Die Entkuppelbarkeit des Zahnrades durch Verschieben kann auch bei dem Gurtwickler mit verringertem Bauraum eingesetzt werden.The decoupling of the gear by moving can also be used in the Gurtwickler with reduced space.

Um die Bewegung des Gurtes zu erfassen und um festzustellen, ob der Rollladengurt beispielsweise auf der Fensterbank aufstößt, wird im einfachsten Falle eine Losrolle verwendet, die lose drehbar gelagert ist und über die im Gebrauchszustand der Rollladengurt führt.In order to detect the movement of the belt and to determine whether the roller shutter belt, for example, rests on the windowsill, a loose roller is used in the simplest case, which is mounted loosely rotatable and leads over the in use state of the roller shutter belt.

Die Losrolle kann neben einem Stirnende mit einer Signalgeberscheibe drehfest verbunden sein. Die Signalgeberscheibe trägt in Umfangsrichtung äquidistant verteilte Felder, wobei sich jeweils zwei benachbarte Felder hinsichtlich der Reflexionseingenschaften unterscheiden.The Losrolle can be rotatably connected in addition to a front end with a signal generator disc. The signal transmitter disk carries in the circumferential direction equidistantly distributed fields, with each two adjacent fields differ with respect to the reflection properties.

Eine besonders hohe Festigkeit wird erreicht, wenn sämtliche Achsen auf denen Zahnräder, Zahnradsätze oder Losrollen gelagert sind, an beiden Enden mit den Getriebeplatinen vernietet sind.A particularly high strength is achieved if all axes are mounted on which gears, gear sets or idler rollers are riveted at both ends with the transmission boards.

Die Befestigung des Motors zwischen den Getriebeplatinen wird vereinfacht, wenn hierzu ein Kuststoffformteil verwendet wird. Dadurch werden Abkantungen an den Blechplatinen vermieden, die immer Toleranzen hinsichtlich des Biegewinkels aufweisen können, was bei der Montage durchaus störend ist. Der Motorträger kann mit Nasen in entsprechenden Öffnungen in den Platinen zuverlässig und spielfrei gehalten sein.The attachment of the engine between the gear plates is simplified when a molded plastic part is used for this purpose. As a result, bends are avoided on the sheet metal blanks, which can always have tolerances in terms of bending angle, which is quite annoying during assembly. The engine mount can be fitted with lugs in corresponding openings in the PCBs be kept reliable and free of play.

Günstige Platzverhältnisse ergeben sich, wenn die Achse des Motors im Gebrauchszustand vertikal ausgerichtet ist.Favorable space results when the axis of the motor is aligned vertically in use.

Die Einbaulänge des Motors entspricht etwa dem Durchmesser des Wickelkernzahnrads und damit dem Durchmesser des maximal möglichen Gurtwickels.The installation length of the motor corresponds approximately to the diameter of the winding core gear and thus the diameter of the maximum possible Gurtwickels.

Ein maximaler Durchmesser des Antriebsmotors wird erreicht, wenn die Platine im Bereich des Motorgehäuses miteinander fluchtende Aussparungen aufweisen. Auf diese Weise kann der Durchmesser des Motors mindestens so groß gemacht werden, wie es dem Außenabstand der Getriebeplatinen entspricht.A maximum diameter of the drive motor is achieved when the board in the region of the motor housing having mutually aligned recesses. In this way, the diameter of the motor can be made at least as large as corresponds to the outer distance of the transmission boards.

Um zum Auskuppeln des Getriebestangs das axial verschiebbare Zahnrad betätigen zu können ist zweckmäßigerweise ein von der Frontseite her zugängliches Betätigungsglied vorgesehen. Das Betätigungsglied kann an einer der Getriebeplatinen beweglich gelagert sein,In order to operate the axially displaceable gear for disengaging the gear rod is expediently provided accessible from the front side actuator. The actuator may be movably mounted on one of the transmission boards,

Große Kräfte können übertragen werden, wenn das Betätigungsglied als Schieber ausgebildet ist, der auf Zug belastet wird. Dadurch kann ein sehr dünner Schieber verwendet werden, der sonst bei einer Druckbelastung ausknicken könnte.Large forces can be transmitted if the actuator is designed as a slide, which is loaded to train. As a result, a very thin slider can be used, which could otherwise buckle at a pressure load.

Im Falle der Verwendung eines Schiebers ergeben sich einfache Verhältnisse, wenn der Schieber eine Keilfläche trägt, die mit dem axial verschiebbaren Zahnrad zusammenwirkt.In the case of using a slider, simple conditions arise when the slider carries a wedge surface which cooperates with the axially displaceable gear.

Die Keilfläche und der Schieber können von einem Blechstanz- und -biegeteil gebildet sein.The wedge surface and the slider may be formed by a Blechstanz- and -biegeteil.

Um die Betätigung zu vereinfachen, kann der Schieber an der Frontseite mit einem Betätigungsorgan versehen sein.To simplify the operation, the slider can be provided on the front side with an actuator.

Im Übrigen sind Weiterbildungen der Erfindung Gegenstand von Unteransprüchen.Incidentally, developments of the invention are the subject of subclaims.

In der nachfolgenden Figurenbeschreibung ist exemplarisch die Grundform der Erfindung dargestellt. Es versteht sich für den Fachmann, dass eine Reihe von Abwandlungen möglich sind, die von den Gegebenheiten abhängig sind, und die hier nicht im Einzelnen erläutert werden müssen.In the following description of the figures, the basic form of the invention is shown by way of example. It will be understood by those skilled in the art that a number of modifications are possible, which are dependent on the circumstances, and which need not be explained in detail here.

In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung dargestellt. Es zeigen:

Fig. 1
einen Ausschnitt aus einer Zimmerwand unter Ver- anschaulichung der Einbauverhältnisse des Gurtwick- lers.
Fig. 2
den Unterputzgurtwickler nach Fig. 1 mit der teil- weise aufgebrochenen Platine und teilweise aufge- brochenen Zahnrädern.
Fig. 3
den Gurtwickler nach Fig. 2 in einer Draufsicht.
Fig. 4
der axial verschiebbare Zahnradsatz zusammen mit dem zugehörigen Betätigungsorgan in einer perspek- tivischen Explosionsdarstellung.
In the drawing, an embodiment of the object of the invention is shown. Show it:
Fig. 1
a section of a room wall showing the installation conditions of the Gurtwickler.
Fig. 2
the Unterputzgurtwickler after Fig. 1 with partially broken board and partly broken gears.
Fig. 3
the Gurtwickler after Fig. 2 in a top view.
Fig. 4
the axially displaceable gear set together with the associated actuator in a perspective exploded view.

Fig. 1 zeigt einen Ausschnitt aus einer Wohnraumwand 1 mit einem darin enthaltenen Fenster 2. Über dem Fenster 2 befindet sich ein Rollladenkasten 3, in dem in bekannter Weise eine Wickelwelle mit daran befestigtem Rollladenpanzer untergebracht ist. Aus der Unterseite des Rollladenkastens 3 führt ein Rollladengurt 4 heraus. Fig. 1 shows a section of a living room wall 1 with a window contained therein 2. About the window 2 is a shutter box 3, in which in a known manner a winding shaft attached thereto roller shutter is housed. From the bottom of the shutter box 3 performs a roller shutter belt 4 out.

Unterhalb des Rollladenkastens 3 befindet sich neben dem Fenster 2 eine Frontplatte 5 eines elektrisch betriebenen Unterputzwicklers 6, wie er in den Figuren 2 und 3 im einzelnen gezeigt ist.Below the shutter box 3 is located next to the window 2, a front panel 5 of an electrically operated flush-mounted 6, as in the Figures 2 and 3 shown in detail.

Der Unterputzgurtwickler 6 weist zwei zueinander parallele, glatte Platinen 7 und 8 auf, die als Blech-Stanzteile ausgeführt und etwa rechteckig zugeschnitten sind. Eine Schmalseite der Platinen 7, 8 ist der Frontplatte 5 zugekehrt. Die Platinen 7, 8 sind voneinander beabstandet und nehmen zwischen sich das Getriebe des Unterputzgurtwicklers 6 auf.The Unterputzgurtwickler 6 has two mutually parallel, smooth boards 7 and 8, which are designed as sheet metal stampings and cut approximately rectangular. A narrow side of the boards 7, 8 faces the front panel 5. The boards 7, 8 are spaced apart and take between them the transmission of Unterputzgurtwicklers 6.

Bezogen auf den eingebauten Zustand ist neben der Frontplatte 5 eine Losrolle 9 auf einer Achse 10 drehbar gelagert, die mit den beiden Platinen 7, 8 vernietet ist. Die Losrolle 9 ist drehfest mit einer Signalgeberscheibe 11 gekoppelt. Die Signalgeberscheibe 11 weist längs dem Umfang äquidistante verteilte Felder 12 und 13 mit unterschiedlichen Reflektionseigenschaften auf. Die Signalgeberscheibe 11 wird durch eine nicht weiter gezeigte Kombination aus Leuchtdiode und Fotodiode abgetastet, um hierüber ein Signal über das Verhalten des Wickelgurtes 4 zu bekommen.Based on the installed state, a loose roller 9 is rotatably mounted on an axis 10 adjacent to the front plate 5, which is riveted to the two boards 7, 8. The idler roller 9 is rotatably coupled to a signal transmitter disk 11. The signal transmitter disk 11 has equidistant distributed fields 12 and 13 with different reflection properties along the circumference. The signal transmitter disk 11 is scanned by a combination of light-emitting diode and photodiode (not shown further) in order to obtain a signal about the behavior of the winding belt 4.

Achsparallel zu der Umlenkrolle 9 ist auf einer mit den Paltinen 7, 8 fest vernieteten Achse 14 ein Gurtwickelkern 15 drehbar gelagert. Der Gurtwickelkern 15 grenzt mit der einen Stirnseite unmittelbar an die Platine 8 an, während er an seiner anderen Stirnseite einstückig in ein großes Zahnrad 16 übergeht, das zwischen dem Gurtwickelkern 15 und der Platine 7 angeordnet ist. Das Zahnrad 16 fluchtet mit der Signalgeberscheibe 11. Sein Kopfkreisdurchmesser ist größer als der Durchmesser der maximal möglichen Wickels auf dem Gurtwickelkern 15.Axially parallel to the guide roller 9 is a Gurtwickelkern 15 rotatably mounted on a fixed riveted with the Paltinen 7, 8 axis 14. The Gurtwickelkern 15 adjacent to one end face directly to the board 8, while it merges on its other end in one piece in a large gear 16, between the Gurtwickelkern 15 and the board 7 is arranged. The gear 16 is aligned with the signal generator disk 11. Its tip diameter is larger than the diameter of the maximum possible coil on the Gurtwickelkern 15th

Der Antrieb des Gurtwickelkerns 15 geschieht über einen Elektromotor 17, der an dem von der Umlenkrolle 9 abliegenden Ende vorgesehen ist. Die Motorachse des Elektromotors 15, der ein Kleinspannungsmotor mit ca, 12 Volt Nennspannung ist, steht im Gebrauchszustand senkrecht. Im eingebauten Zustand ist der Motor 15 an von der Frontplatte 5 abliegend Schmalseite der Platinen 7,8 in der Raumwand 1 angeordnet.The drive of the Gurtwickelkerns 15 via an electric motor 17, which is provided at the remote from the guide roller 9 end. The motor axis of the electric motor 15, which is a low voltage motor with ca, 12 volts nominal voltage, is in use, vertical. When installed, the motor 15 is arranged on the narrow side of the boards 7, 8 lying in the room wall 1, away from the front panel 5.

Um einen möglichst großen Durchmesser des Motors 15 zu ermöglichen, sind die beiden Platinen 7 und 8 mit rechteckförmigen Aussparungen 18 versehen, die zueinander deckungsgleich sind und von denen lediglich die in der Platine 8 enthaltene andeutungsweise in Fig. 2 zu erkennen ist. Sie gehen von der Unterseite und der hinteren Schmalseite der Platinen 7, 8 aus. Am oberen Ende der beiden Aussparungen 18 sitzt ein Motorträger 19, der als Kunststoffformteil ausgeführt ist. Mit Hilfe nicht weiter erkennbarer seitlicher Zapfen, die aufgrund der Darstellung weggeschnitten sind, ist der Motorträger 19 formschlüssig in entsprechend ausgestanzten Öffnungen in den beiden Platinen 7 und 8 verankert. Der Motorträger 19 bildet eine nach unten zeigende Montagefläche 20, an der der Motor 17 mit seiner nach oben zeigenden Stirnseite angeflanscht ist. Auf der Motorwelle sitzt drehfest eine Schnecke 21.In order to allow the largest possible diameter of the motor 15, the two boards 7 and 8 are provided with rectangular recesses 18 which are congruent to each other and of which only those contained in the board 8 suggestively in Fig. 2 can be seen. They start from the underside and the rear narrow side of the boards 7, 8. At the upper end of the two recesses 18 sits a motor support 19, which is designed as a plastic molded part. With the help not further recognizable lateral pins, which are cut away due to the representation, the motor mount 19 is positively anchored in corresponding punched openings in the two boards 7 and 8. The motor mount 19 forms a downwardly facing mounting surface 20 to which the motor 17 is flanged with its upwardly facing end face. On the motor shaft is rotatably a worm 21st

Die Schnecke 21 kämmt mit einem Schneckenrad 22. Das Schneckenrad 22 ist, zusammen mit dem einstückig angespritzten Ritzel 23, auf einer Achse 24 drehbar gelagert. Das Schneckenrad 22 und das Ritzel 23 bilden einen ersten Zahnradsatz. Die Achse 24 dieses als Spritzgussteil hergestellten Zahnradsatzes ist wiederum an beiden Enden mit den beiden Platinen 7 und 8 vernietet.The worm 21 meshes with a worm wheel 22. The worm wheel 22 is, together with the integrally molded pinion 23, rotatably mounted on an axle 24. The Worm wheel 22 and the pinion 23 form a first gear set. The axis 24 of this gear set manufactured as an injection molded part is in turn riveted at both ends with the two boards 7 and 8.

Aus Platzgründen befindet sich das Schneckenrad 22, bezogen auf die Schnecke 21, auf jener Seite, die von dem Gurtwickelkern 15 abliegt. Somit befindet sich das Schneckenrad 22 im Bereich jenes Teils des Lichtraumprofils des Motors 17, der zur Rückseite des Gurtwicklers 6 liegt. Durch diese Baumaßnahme wird erheblich Platz gespart, verglichen mit einer Anordnung, bei der die Schnecke 21 bezogen auf Fig. 3 rechts neben dem Schneckenrad 22 liegt. Hierdurch wäre der Bauraum nach hinten, d. h. in die Tiefe der Wand gesehen, um den Durchmesser des Schneckenrades 22 zuzüglich dem Durchmesser der Schnecke 21 größer.For reasons of space, the worm wheel 22, relative to the worm 21, is located on that side which lies away from the belt winding core 15. Thus, the worm wheel 22 is in the region of that part of the clearance of the motor 17, which lies to the back of Gurtwicklers 6. Significant space is saved by this construction measure, compared with an arrangement in which the screw 21 based on Fig. 3 right next to the worm wheel 22 is located. As a result, the installation space to the rear, ie viewed in the depth of the wall, would be larger by the diameter of the worm wheel 22 plus the diameter of the worm 21.

Von dem Ritzel 23 wird ein zweiter Zahnradsatz 25 angetrieben. Der zweite Zahnradsatz 25 setzt sich aus einem Zahnrad 26 und einem damit drehfest gekoppelten Ritzel 27 zusammen. Beide Zahnräder 26, 27 sind beispielsweise einstückig als Spritzgussteil ausgeführt. Damit das Zahnrad 26 unmittelbar anliegend an der Innenseite der Platine 8 läuft, ist neben dem Ritzel 27 eine Nabe 28 ausgebildet, die sie an der Innenseite der anderen Platine 7 abstützt. Der Zahnradsatz 25 ist auf der beidends vernieteten Achse 29 drehbar gelagert.From the pinion 23, a second gear set 25 is driven. The second gear set 25 is composed of a gear 26 and a rotatably coupled therewith pinion 27. Both gears 26, 27 are for example made in one piece as an injection molded part. Thus, the gear 26 runs directly adjacent to the inside of the board 8, a hub 28 is formed adjacent to the pinion 27, which supports it on the inside of the other board 7. The gear set 25 is rotatably mounted on the riveted axis 29 at both ends.

Ein dritter Zahnradsatz 30 überträgt schließlich das Drehmoment von dem Zahnradsatz 25 zu dem Wickelkernzahnrad 16. Der Zahnradsatz 30 umfasst ein Zahnrad 31, das mit dem Ritzel 27 kämmt und über eine Nabe 32 in axialer Richtung auf einem entsprechenden Abstand von der Innenseite der Platine 8 gehalten ist. Ein zweites mit dem Zahnrad 31 drehfest gekoppeltes Zahnrad 33 kämmt mit dem Wickelkernzahnrad 16. Auch der Zahnradsatz 30 ist wiederum auf einer ortsfesten Achse 34 gelagert, die beidends mit den Platinen 7 und 8 vernietet ist.A third gear set 30 finally transmits the torque from the gear set 25 to the winding core gear 16. The gear set 30 includes a gear 31 which meshes with the pinion 27 and via a hub 32 in the axial direction at a corresponding distance from the inside of the board eighth is held. A second with the gear 31 rotatably coupled gear 33 meshes with the winding core gear 16. Also, the gear set 30 is in turn mounted on a stationary shaft 34, which is riveted at both ends with the boards 7 and 8.

Wie sich aus der Erläuterung ergibt, bilden die Achsen 10, 14, 24, 29 und 34 gleichzeitig die Pfeiler, über die die beiden Platinen 7 und 8 aneinander befestigt sind.As can be understood from the explanation, the axes 10, 14, 24, 29 and 34 simultaneously form the pillars by which the two boards 7 and 8 are fastened together.

Fig. 2 lässt obendrein erkennen, dass die Zahnradsätze 25 und 30 im Bereich der Oberseite des Gurtwicklers 6 angeordnet sind. Hierdurch und durch die spezielle Einbaulage des Motors 17 gegenüber dem Schneckenrad 22 wird bei gegebener zur Verfügung stehender Raumtiefe der mögliche Platz für den Gurtwickel, der auf den Wickelkern 15 aufgewickelbar wird, maximiert. Fig. 2 On top of that, it can be seen that the gear sets 25 and 30 are arranged in the area of the upper side of the belt winder 6. As a result, and by the particular installation position of the motor 17 relative to the worm wheel 22, the possible space for the belt reel which can be wound onto the winding core 15 is maximized for a given available room depth.

Die Montage und Funktion des Unterputzgurtwicklers 6 ist wie folgt:

  • Bei heruntergelassenem Rollladenpanzer wird das frei nach unten hängende Ende des Rollladengurtes 4 an einem Haken 35, der aus dem Umfang des Gurtwickelkerns 15 vorsteht, eingehängt, nachdem er durch einen entsprechenden Schlitz in der Frontplatte 5 hindurch gefädelt und unter der Losrolle 9 vorbeigeführt ist. Sodann wird der Unterputzgurtwickler 6 mit demjenigen Ende, an dem sich der Motor 17 befindet, voraus in die Mauerausnehmung hineingesteckt und mit Hilfe von nicht weiter gezeigten Flanschen, die an der vorderen Schmalseite der Platinen 7, 8 befestigt sind, an der Wand 1 festgeschraubt. Anschließend wird die Frontplatte 5 mit der darin befindlichen Steuerelektronik auf den in der Wand montierten Unterputzgurtwickler 6 aufgesetzt, wobei gleichzeitig der elektrische Kontakt zu dem Motor 17 hergestellt wird. In der Frontplatte sind die Steuerelektronik und die Abtastelektronik für die Signalgeberscheibe 11 untergebracht.
The installation and function of the Unterputzgurtwicklers 6 is as follows:
  • When the roller shutter is lowered, the free hanging down end of the roller shutter belt 4 on a hook 35 which protrudes from the circumference of the Gurtwickelkerns 15, hung after it is threaded through a corresponding slot in the front panel 5 and passed under the idle roller 9. Then the Unterputzgurtwickler 6 with the end, where the motor is 17, advance inserted into the wall recess and with the help of not shown flanges, which are attached to the front narrow side of the boards 7, 8, bolted to the wall 1. Subsequently, the front panel 5 is mounted therein with the control electronics on the mounted in the wall Unterputzgurtwickler 6 fitted, at the same time the electrical contact to the motor 17 is made. In the front panel, the control electronics and the sampling electronics for the signal transmitter disk 11 are housed.

Durch entsprechendes Betätigen von Tasten an der Frontplatte 5 wird der Strom für den Motor 17 eingeschaltet, der über das Schneckenrad 22, das Ritzel 23, den Zahnradsatz 25 und den Zahnradsatz 30 das Gurtwickelzahnrad 16 in Umdrehungen versetzt. Hierdurch wird der Rolladengurt entsprechend auf den Wickelkern 15 aufgewickelt. Das Getriebe ist selbstsperrend. Beim Anhalten des Motors 17 bleibt der Rolladenpanzer an der jeweiligen Höhe stehen. Das Absenken des Rolladenpanzers geschieht, indem der Motor 17 mit der umgekehrten Drehrichtung in Umdrehungen versetzt wird.By appropriate pressing of buttons on the front panel 5, the power for the motor 17 is turned on, the Gurtwickelzahnrad 16 is rotated about the worm wheel 22, the pinion 23, the gear set 25 and the gear set 30 in turns. As a result, the roller shutter belt is wound on the winding core 15 accordingly. The gearbox is self-locking. When stopping the motor 17, the roller shutter remains at the respective height. The lowering of the roller shutter is done by the motor 17 is rotated in the reverse direction in revolutions.

Fig. 4 zeigt eine Weiterbildung des Zahnradsatzes 30. Das zwischen dem Motor 17 und dem Gurtwickelkern 15 liegende Getriebe ist wie erwähnt selbstsperrend. Die Sperrwirkung wird durch das Zusammenwirken der Schnecke 21 mit dem Schneckenrad 22 erreicht. Dies hat zur Folge, dass bei einem Fehler in dem Unterputzgurtwickler 6 der Rollladengurt 4 möglicherweise nicht mehr entspannt werden kann und eine Demontage aus der Maueröffnung praktisch unmöglich würde, es sei denn der Benutzer schneidet den Rolladengurt 4 durch. Eine Maßnahme die höchst unerwünscht ist. Um ohne Zerstörung des Rollladengurts 4 diesen entspannen zu können, ist der Zahnradsatz 30 gemäß Fig. 4 ausgebildet. Fig. 4 shows a development of the gear set 30. The lying between the motor 17 and the Gurtwickelkern 15 transmission is self-locking as mentioned. The blocking effect is achieved by the interaction of the worm 21 with the worm wheel 22. This has the consequence that in the event of a fault in the flush-mounted belt winder 6, the roller shutter belt 4 may no longer be able to be relaxed and disassembly from the wall opening would be virtually impossible, unless the user cuts through the roller shutter belt 4. A measure that is highly undesirable. In order to relax this without destroying the roller shutter belt 4, the gear set 30 is according to Fig. 4 educated.

Um den Kraftfluss von dem Motor 17 zu dem Gurtwickelkern 15 zu unterbrechen ist das Zahnrad 33 axial verschieblich ausgeblieben.In order to interrupt the power flow from the motor 17 to the Gurtwickelkern 15, the gear 33 has failed to move axially.

Das Zahnrad 33 trägt, wie Fig. 4 erkennen lässt, einstückig angeformt, einen koaxialen Zapfen 40, der mit einer Profilverzahnung 41 versehen ist. Die Profilverzahnung 41 ist komplementär zu einer Profilverzahnung 42, die sich im Inneren eines koaxialen rohrförmigen Fortsatzes 43 befindet, der an dem Zahnrad 31 angeformt ist. Eine Druckfeder 44 umgibt die Achse 34 konzentrisch. Die Druckfeder 44 liegt mit einem Ende an dem freien Stirnende des Zapfens 40 an, während sie sich mit ihrem anderen Ende am Grund der Bohrung in dem rohrförmigen Fortsatz 43 abstützt. Auf diese Weise werden die beiden Zahnräder 31 und 33 in axialer Richtung voneinander weg vorgespannt. Dies bedeutet, dass die Druckfeder 44 dafür sorgt, dass der Bund 32 an der Innenseite der Platine 8 anliegt, während das Zahnrad 33 mit seiner außenliegenden Flachseite auf der Innenseite der Platine 7 gleitet. In dieser Position steht das Zahnrad 33 mit dem Wickelkernzahnrad 16 in Eingriff. Der Kraftfluss über den Zahnradsatz 30 ist gewährleistet, denn der rohrförmige Fortsatz 43 nimmt über die Profilverzahnung 42 die Profilverzahnung 41 des Zapfens 40 mit und setzt dadurch das Zahnrad 33 in Umdrehungen, wenn der Motor 17 läuft.The gear 33 carries, as Fig. 4 can recognize, integrally formed, a coaxial pin 40 which is provided with a spline 41. The spline 41 is complementary to a spline 42, which is located inside a coaxial tubular extension 43 which is integrally formed on the gear 31. A compression spring 44 concentrically surrounds the axis 34. The compression spring 44 bears with one end on the free end face of the pin 40, while it is supported at its other end at the bottom of the bore in the tubular extension 43. In this way, the two gears 31 and 33 are biased away from each other in the axial direction. This means that the compression spring 44 ensures that the collar 32 rests against the inside of the board 8, while the gear 33 slides with its outer flat side on the inside of the board 7. In this position, the gear 33 is engaged with the winding core gear 16. The power flow through the gear set 30 is ensured, because the tubular extension 43 takes over the splines 42, the spline 41 of the pin 40 and thereby sets the gear 33 in revolutions when the motor 17 is running.

Um das Zahnrad 33 außer Eingriff mit dem Wickelkernzahnrad 16 zu bringen, ist ein Schieber 45 vorgesehen. Der Schieber 45 ist ein Blechstanz- und -biegeteil und besteht aus einem länglichen flachen Stiel 46, der an seinem Vorderende, das der Frontplatte 5 benachbart ist, unter Ausbildung eines Betätigungsorgans 47 um eine vertikale Achse abgewinkelt ist. Im hinteren Bereich ist der Stiel 46 ebenfalls abgewinkelt, jedoch um eine horizontale Achse und bildet eine dreieckförmiges Teil, das als Keil 48 dient. Der Keil 48 ragt durch eine bei 49 gestrichelt angedeutete Öffnung in der Platine 7 und bildet eine freie Kante 50.To bring the gear 33 out of engagement with the winding core gear 16, a slider 45 is provided. The slider 45 is a Blechstanz- and -biegeteil and consists of an elongated flat stem 46 which is angled at its front end, which is the front panel 5, to form an actuator 47 about a vertical axis. In the rear region of the stem 46 is also angled, but about a horizontal axis and forms a triangular part, which serves as a wedge 48. The wedge 48 protrudes through an opening indicated in dashed lines at 49 in the circuit board 7 and forms a free edge 50.

Der Stiel 46 wird auf der Außenseite der Platine 7 in dort vorhandenen, nach außen ausgeklinkten Laschen geführt, so dass das Betätigungsorgan 47, wie in Fig. 2 angedeutet, von vorne her vor der Signalscheibe 11 sichtbar ist. Von vorne gesehen, liegt der Keil 48 hinter dem Zahnrad 33, etwas unterhalb der Nabe 28. Seine Spitze zeigt in Richtung auf das Zahnrad 33, während das breite Ende zu der Rückseite des Gurtwicklers 6 ausgerichtet ist. Im Ruhezustand berührt der Keil das Zahnrad 33 nicht. Mit Hilfe des Betätigungsorgans 47 wird im Zusammenspiel mit der Frontplatte 5 dafür gesorgt, dass der Keil 48 zurückgeschoben und außer Eingriff mit dem Zahnrad 33 gehalten ist.The handle 46 is guided on the outside of the board 7 in there existing outwardly notched tabs, so that the actuator 47, as in Fig. 2 indicated, from the front in front of the signal disk 11 is visible. Seen from the front, the wedge 48 is behind the gear 33, slightly below the hub 28. Its tip points towards the gear 33, while the broad end is aligned with the back of Gurtwicklers 6. At rest, the wedge does not touch the gear 33. With the help of the actuator 47 is ensured in cooperation with the front panel 5 that the wedge 48 is pushed back and out of engagement with the gear 33 is held.

Sollte ein Fehler passieren und es erforderlich werden dem Unterputzgurtwickler 6 aus der Maueröffnung auszubauen, kann, falls erforderlich, der Kraftfluss zwischen dem Wickelkern 15 und dem Antriebsmotor 17 unterbrochen werden. Hierzu wird der Schieber 45 mit Hilfe des abgewinkelten Betätigungsorgans 47 zusammen mit dem Keil 48 nach vorne zu dem Zahnrad 33 hin gezogen. Dabei kommt die freie Kante 50 mit dem Zahnrad 33 in Eingriff. Da die Kante 50 schräg zur Bewegungsrichtung des Schiebers 45 läuft, dringt die Kante 50 an der Berührungsstelle mit dem Zahnrad 33 immer stärker in den Raum zwischen den beiden Platinen 7 und 8 vor. Hierdurch wird das Zahnrad 33 gegen die Wirkung der Feder 44 in Richtung auf das Zahnrad 31 verschoben. Die Höhe des Keils 48 ist so bemessen, dass am Ende des Hubs des Schiebers 45 das Zahnrad 33 um die Dicke des Wickelkernzahnrads 16 axial zur Seite bewegt ist, womit der Eingriff zwischen den beiden Zahnrädern 16 und 33 aufgehoben ist. Der Wickelkern 15 lässt sich damit frei drehen und der Gurt 4 entspannen.Should a mistake happen and it becomes necessary to remove the flush-mounted belt winder 6 from the wall opening, the force flow between the winding core 15 and the drive motor 17 can be interrupted if necessary. For this purpose, the slider 45 is pulled by means of the angled actuator 47 together with the wedge 48 forward to the gear 33 out. In this case, the free edge 50 comes into engagement with the gear 33. Since the edge 50 runs obliquely to the direction of movement of the slider 45, the edge 50 at the point of contact with the gear 33 penetrates more and more into the space between the two boards 7 and 8. As a result, the gear 33 is displaced against the action of the spring 44 in the direction of the gear 31. The height of the wedge 48 is so dimensioned that at the end of the stroke of the slider 45, the gear 33 is moved axially to the side by the thickness of the winding core gear 16, whereby the engagement between the two gears 16 and 33 is canceled. The winding core 15 can thus rotate freely and the belt 4 relax.

Durch ein Zurückschieben des Schiebers 45 in die Ausgangsstellung kann das Zahnrad 32 aufgrund der Wirkung der Feder 44 in die Ausgangslage zurückkehren, in der es mit dem Zahnrad 16 kämmt.By pushing back the slider 45 in the starting position, the gear 32 due to the action of the spring 44 return to the starting position in which it meshes with the gear 16.

Bei einem Unterputzgurtwickler taucht um Bauraum zu sparen die mit einer Schnecke versehene Welle des Antriebsmotors in den Raum zwischen zwei Zahnradsätzen ein.In a concealed belt winder immersed in order to save space, the provided with a worm shaft of the drive motor in the space between two gear sets.

Für den Fehlerfall ist vorgesehen, dass wenigstens eines der Zahnräder in axialer Richtung verschiebbar ist, um den Kraftfluss von dem Wickelkern zu dem Antriebsmotor zu unterbrechen, damit der Rollladengurt entspannt werden kann.In the event of a fault, it is provided that at least one of the gear wheels is displaceable in the axial direction in order to interrupt the power flow from the winding core to the drive motor so that the roller shutter belt can be relaxed.

Claims (28)

  1. Concealed winder (6)
    with two plates (7, 8)
    with a belt winding core (15), which is rotatably mounted between the two plates (7, 8) and is connected on the face side to a winding core gear wheel (6) to be fixed against rotation,
    with a first gear wheel set (30), which is rotatably mounted between the plates (7, 8) axis-parallel to the belt winding core (15) and which includes a gear wheel (33), which meshes with the winding core gear wheel (16), and a gear wheel (31),
    with a second gear wheel set (25), which is rotatably mounted between the plates (7, 8) and the pinion (27) of which meshes with a gear wheel (31) of the first gear wheel set (30),
    with a third gear wheel set, which comprises a worm wheel (22) and a spur gear wheel (23), which meshes with a gear wheel (26) of the second gear wheel set (25),
    with a drive motor (17), the motor shaft 0 of which carries a worm (21) in a manner fixed against rotation, which engages with the worm wheel (22) of the third gear wheel set, wherein the worm (21) plunges between the second (25) and the third gear wheel set.
  2. Concealed winder according to claim 1, characterised in that the two plates (7, 8) are formed by substantially plane metal sheets.
  3. Concealed winder according to claim 1, characterised in that the two plates (7, 8) are arranged parallel to one another.
  4. Concealed winder according to claim 1, characterised in that the plates (7, 8) are riveted to one another via shaft members (10, 14, 24, 29, 35) of gear wheel sets (25, 30).
  5. Concealed winder according to claim 1, characterised in that the belt winding core (15) is open at its face side opposite the winding core gear wheel (15).
  6. Concealed winder according to claim 1, characterised in that the belt winding core (15) has a hook (35) for suspending a roller shutter strap (4).
  7. Concealed winder according to claim 1, characterised in that in the case of the gear wheel set (30) adjacent to the winding core gear wheel (16) for transmission, the two gear wheels (31, 33) can be displaced relative to one another in axial direction.
  8. Concealed winder according to claim 7, characterised in that one gear wheel (33) has a profiled coaxial journal (41), whereas the other gear wheel (31) of the gear wheel set (30) is provided with a bush (43) with complementary profiling to the profiled journal (40).
  9. Concealed winder according to claim 7, characterised in that the two gear wheels (31, 33) of the gear wheel set (30) are biased away from one another by means of a pressure spring (44).
  10. Concealed winder according to claim 7, characterised in that the gear wheels (31, 33) of the gear wheel (30) are arranged in such a manner that one gear wheel (31) is adjacent to one plate (8) and the other gear wheel (33) is adjacent to the other plate (7).
  11. Concealed winder according to claim 7, characterised in that the gear wheel (31) of the gear wheel set (30), which does not mesh with the belt winding core gear wheel (15), is spaced from the adjacent plate (8) at a distance corresponding to the thickness of a gear wheel (26) of the next gear wheel set (25).
  12. Concealed winder according to claim 1, characterised in that the second gear wheel set (25) has two gear wheels (26, 27) connected to one another to be fixed against rotation, which are directly adjacent and are adjacent to the plate (8) lying remote from the winding core gear wheel (15).
  13. Concealed winder according to claim 1, characterised in that the belt winding core (15) is rotatably mounted on an shaft member (14), which is riveted to the plates (7, 8) at the ends.
  14. Concealed winder according to claim 1, characterised in that an idler (9), over which a roller shutter strap (4) is directed in the state of use, is rotatably mounted between the plates (7, 8).
  15. Concealed winder according to claim 14, characterised in that next to a face end the idler (9) is connected to a signal disc (11) to be fixed against rotation.
  16. Concealed winder according to claim 15, characterised in that the signal disc (11) is provided with fields (12, 13) distributed at equal distances in circumferential direction, wherein two respective adjacent fields (12, 13) differ with respect to reflection properties.
  17. Concealed winder according to claim 1, characterised in that all shaft members (10, 14, 24, 29, 35), on which gear wheels or gear sets (25, 30) or idlers (9) are mounted, are riveted to the plates (7, 8) at both ends.
  18. Concealed winder according to claim 1, characterised in that a shaped part (19) serving as motor support is held in a positive-locking manner between the plates (7, 8).
  19. Concealed winder according to claim 1, characterised in that the longitudinal axis of the motor (17) is oriented vertically in the state of use.
  20. Concealed winder according to claim 1, characterised in that the installation length of the motor (17) corresponds approximately to the diameter of the winding core gear wheel (16).
  21. Concealed winder according to claim 1, characterised in that the two plates (7, 8) have aligned recesses (18) in the region of the motor (17).
  22. Concealed winder according to claim 1, characterised in that the gear wheel set (30) with the gear wheels (31, 33), which are movable relative to one another in axial direction, has an associated operating member (45).
  23. Concealed winder according to claim 22, characterised in that the operating member (45) is movably mounted on one of the plates (7).
  24. Concealed winder according to claim 22, characterised in that the operating member (45) is formed by a slide.
  25. Concealed winder according to claim 24, characterised in that the slide (45) has a wedge (48) at its end cooperating with the axially displaceable gear wheel (33).
  26. Concealed winder according to claim 25, characterised in that the slide (45) is provided with an operating element (47) at its end remote from the wedge (48).
  27. Concealed winder according to claim 26, characterised in that the operating element (47) is located on the side of the concealed winder (6), which in the installed state points out of the wall, in which the concealed belt winder (6) is located.
  28. Concealed winder according to claim 22, characterised in that the slide (45) is formed by a stamped or bent sheet metal part, wherein the wedge (48) is formed by a bent triangular section, which projects into the space between the plates (7, 8) from the outside through an opening (49) in the respective plate (8), on which the slide (45) is disposed.
EP06009318A 2005-05-11 2006-05-05 Drive system for a rolling shutter strap Not-in-force EP1749964B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07023656A EP1903177B1 (en) 2005-05-11 2006-05-05 Concealed belt winder with reduced installation depth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005022497A DE102005022497B4 (en) 2005-05-11 2005-05-11 Unterputzgurtwickler with reduced installation depth

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP07023656A Division EP1903177B1 (en) 2005-05-11 2006-05-05 Concealed belt winder with reduced installation depth
EP07023656.7 Division-Into 2007-12-06

Publications (3)

Publication Number Publication Date
EP1749964A2 EP1749964A2 (en) 2007-02-07
EP1749964A3 EP1749964A3 (en) 2007-05-30
EP1749964B1 true EP1749964B1 (en) 2011-11-09

Family

ID=37295441

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06009318A Not-in-force EP1749964B1 (en) 2005-05-11 2006-05-05 Drive system for a rolling shutter strap
EP07023656A Not-in-force EP1903177B1 (en) 2005-05-11 2006-05-05 Concealed belt winder with reduced installation depth

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP07023656A Not-in-force EP1903177B1 (en) 2005-05-11 2006-05-05 Concealed belt winder with reduced installation depth

Country Status (3)

Country Link
EP (2) EP1749964B1 (en)
AT (2) ATE536460T1 (en)
DE (2) DE102005022497B4 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007034430A1 (en) * 2007-07-20 2009-01-22 Hans Arnhold Security system with roller shutter plating which can be wound onto shaft has transmitting device connected to broken-glass sensor and transmits control signals which are characteristic for breaking of glass of sensor
DE102007056764A1 (en) * 2007-11-23 2009-05-28 Hans Arnhold Belt winder, particularly floating winder for roller shutter fastened to window framework, has two plates which are parallel to each other and has driving motor whose motor shaft runs parallel to plates
CN112411142A (en) * 2020-09-16 2021-02-26 天津大学 Intelligent outdoor rain-proof clothes hanger

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2954590C2 (en) * 1979-04-18 1991-10-10 Brose Fahrzeugteile Gmbh & Co Kg, 8630 Coburg, De
DE2915669A1 (en) * 1979-04-18 1980-10-23 Brose & Co Metallwerk Max ELECTRIC WINDOW LIFT DRIVE FOR A CABLE WINDOW OR ROD WINDOW LIFTER
DE3214235C2 (en) * 1982-04-17 1989-06-08 Willi 4292 Rhede Rademacher Belt box for a blackout device
DE19706329A1 (en) * 1997-02-19 1998-09-03 Hans Arnhold Roller shutter belt drive
DE29921653U1 (en) * 1999-10-06 2001-02-15 Rademacher, Wilhelm, 46414 Rhede Belt winder for a roller shutter belt or the like.
DE10202075C1 (en) * 2002-01-18 2003-06-12 Hans Arnhold Drive for building security shutter has gear drive mounted between parallel side plates
DE10202055A1 (en) * 2002-01-18 2003-07-31 Hans Arnhold Roller shutter drive system with improved friction driving
US7746325B2 (en) 2002-05-06 2010-06-29 3M Innovative Properties Company Method for improving positioned accuracy for a determined touch input
DE10349724A1 (en) * 2003-10-23 2005-06-02 Hans Arnhold Gurtwickler with integrated belt pulley
DE20316494U1 (en) * 2003-10-24 2004-01-22 Rademacher, Wilhelm Belt winder for a blackout device such as a roller shutter

Also Published As

Publication number Publication date
EP1749964A3 (en) 2007-05-30
DE102005063374B4 (en) 2008-04-03
DE102005022497B4 (en) 2008-01-31
ATE536460T1 (en) 2011-12-15
DE102005063374A1 (en) 2007-05-03
DE102005022497A1 (en) 2006-11-16
EP1903177B1 (en) 2011-12-07
EP1903177A1 (en) 2008-03-26
EP1749964A2 (en) 2007-02-07
ATE532938T1 (en) 2011-11-15

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