EP1172515B1 - End position switching device - Google Patents

End position switching device Download PDF

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Publication number
EP1172515B1
EP1172515B1 EP01113327A EP01113327A EP1172515B1 EP 1172515 B1 EP1172515 B1 EP 1172515B1 EP 01113327 A EP01113327 A EP 01113327A EP 01113327 A EP01113327 A EP 01113327A EP 1172515 B1 EP1172515 B1 EP 1172515B1
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EP
European Patent Office
Prior art keywords
switching
switch
discs
end position
disc
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.)
Expired - Lifetime
Application number
EP01113327A
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German (de)
French (fr)
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EP1172515A3 (en
EP1172515A2 (en
Inventor
Hans-Michael Dangel
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Gerhard Geiger GmbH and Co
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Gerhard Geiger GmbH and Co
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Publication of EP1172515A2 publication Critical patent/EP1172515A2/en
Publication of EP1172515A3 publication Critical patent/EP1172515A3/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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • 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
    • E06B2009/6809—Control
    • E06B2009/6872—Control using counters to determine shutter position

Definitions

  • the invention relates to a differential gear based Endlagenabschaltvorides a powered by an electric drive blind according to the preamble of claim 1.
  • Such Endlagenabschaltvoriquesen are, for example, by EP-A1-0 844 633 and EP-B1-0 665 361 known.
  • the notches in the indexing disks are usually considered as simple V-shaped cuts formed.
  • the caster is the angle that the output shaft of the Electric drive and thus the drive pinion of Endlagenabschaltvortechnisch swept after switching off in the de-energized state. He is dependent on Ratio between speed of the drive shaft (motor shaft) and the speed of the indexing disc, the response and effectiveness of Brake and the inertia of the rotating parts. In addition, can itself due to wear the braking effect deteriorate, causing the caster increased. A safe function is only by an independent of the caster Endpositionabschaltvortechnisch possible, but the acquaintance with relative high constructive effort is connected.
  • DE-C2-30 11 260 is a switching device for the electrical Drive of roller shutters known, the two at different speeds driven cam wheels with profile notches has, in the two Druckarmspitzen (Tastmaschine) for engaging a switch can intervene.
  • the backward Wall of each profile notch is chamfered to the rear and laterally outward and merges into a cam portion whose radial height is about the tread groove depth point equivalent.
  • the switching arm tips and the beveled Walls of the profile notches glide together as the cam wheels continue to rotate and move laterally elastically against each other.
  • the object of the invention is therefore a simple Endlagenabschaltvorraum to create the mentioned in the preamble of claim 1, at the safe shutdown of the electric drive after reaching the end position remains guaranteed.
  • Another advantage of the invention is that the open arc segment the notches arranged on the circumference of the indexing disc by an asymmetrical Training can be kept minimal. This allows the teeth ratio the differential gear as close as possible 1, whereby a large adjustment range of Endlagenabschaltvoriques arises.
  • the Relative movement of the switching discs to each other and the length of the open arc segments must be coordinated so that the open arc segments the two switching discs one revolution before the actual end position are offset from each other so that the Wegarmspitze can not come.
  • the smaller the open arc segment the lower the relative movement per revolution of the switching discs to each other. The lower the Relative movement is, the closer that is the teeth ratio of the Differential gear at 1.
  • the shift gate as the adjacent switching disc open groove to create a arcuate, radially outward groove wall formed.
  • a further embodiment of the invention is made such that the switching arm tip two laterally outwardly projecting webs for inclusion in the notches and scenes having the switching discs and that between the webs and the Shift arm in each case a groove for receiving the associated groove wall of the indexing disk is provided.
  • the guidance of the switching arm upon incidence into the shift gate can e.g. in two different types take place:
  • the preloaded shift arm tip slides when it enters the shift gate first on the circumference of the indexing disc, then down along the notch slope to the groove bottom of the open groove.
  • the other variant provides that the preloaded Wennarmspitze when Slipping into the shift gate only on the circumference of the shift window, but then down the notch slope, but then in the groove of the Shift arm guided along the groove wall of the shift gate. The bottom of the groove open groove is then no longer necessary.
  • the height of the groove wall is around at least half the width of the web of the switching arm is lower than that Width of the indexing disk on the circumference of the indexing disk. This will be the Shift arm when falling into the shift gate axially in the between the two Slots resulting slot out.
  • a hollow drive pinion 3 is mounted in a tubular housing 1 on a Base plate 2 of the housing 1 centrally a hollow drive pinion 3 is mounted.
  • the cavity 4 of the drive pinion 3 serves to receive the output shaft of the not shown electric motor of a blind, which also from this output shaft is driven.
  • the arranged on the circumference of the drive pinion 3 Teeth interfere with teeth on the circumference of four on the base plate 2 mounted gears are arranged.
  • left and right are only the To see gears 5, 7.
  • Behind each of the gears 5, 7 hides each a second gear 6 or 8, as is apparent from Fig. 2 (in the figures 2 and 3, a portion of the gear 7 is omitted for illustrative purposes was).
  • the differential gear, consisting of the gears 5, 6 is for a (for example upper) end position of the blind provided while the Differential gear, consisting of the gears 7, 8, for the other (For example, lower) end position of the blind are provided.
  • the number of teeth the gears 5, 6 and 7, 8 are slightly different.
  • the gears 5, 7 each 40 teeth and the gears 6, 8 each 41 teeth.
  • the gears 5, 6 and also the gears 7, 8 are therefore different driven fast.
  • Each gear 5-8 is each about a not further explained slip clutch connected with an associated switching disc 9-12, as is apparent from Fig. 2.
  • the switching disk 9 is the gear 5, the switching disk 10 the Gear 6, the switching disk 11 the gear 7 and the switching disk 12 the Gear 8 assigned, on the one hand the switching discs 9, 10 and on the other the discs 11, 12 are immediately adjacent.
  • the switching arms 13, 15 are fixed to two on the base plate 2 Axles 17, 18 rotatably mounted.
  • the switching arm 13 acts on a not Bearing lever described in detail on a switch plunger 19 of a microswitch 20 a, which interrupts the current for the electric motor in the one end position, during the switching arm 15 via a non-descriptive lever on a switch plunger 21 of a second, not visible in Fig. 1 and acting under the micro switch 20 microswitch acts, the Electricity for the electric motor in the other end position interrupts.
  • Each indexing disc of the indexing discs 9-12 is on its periphery with a Notch, to which according to the invention a circumferentially extending, axially recessed shift gate connects. Exemplary is only the Shift disc 11 described; the other discs 9, 10, 12 are corresponding educated.
  • the indexing disk 11 of FIG. 2 is shown in Fig. 5 from below.
  • This switching disc consists of a circular disc 22 in the shift gate 25th is trained.
  • This shift gate is as the adjacent switching disc 12th towards open groove 26 to create an arcuate, radially outward lying groove wall 27 is formed.
  • the height of the groove wall 27 is around at least half the width of the web of the switching arm (which is in Fig. 6 the Width of the groove wall 27) dimensioned smaller than the width of the peripheral flange 23rd
  • a switching arm 15 is shown by way of example in FIGS. 7 and 8.
  • the Heidelbergarmspitze 28 of the switching arm 15 is the shift gates 25 such adjusted that after engaging in the notches 24 for the direction of engagement the switching discs 11, 12 held in the shift gates 25 remains.
  • the switching arm tip 28 consists of two laterally outwards standing webs 29, 30 and extending in the longitudinal direction of the switching arm 15 Guide bar 31. Between the switching arm 15 and the web 29 is a groove 32 recessed, in which the groove wall 27 upon engagement of Wegarmspitze 28 place finds. The web 29 glides on the bottom of the groove open groove 26. As not shown, the leadership of the switching arm takes place in the other switching disc 12 in a corresponding manner.
  • FIG. 3 shows, the guide web 31 between the groove walls 27 of the adjacent Shift discs 11, 12 out.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Retarders (AREA)
  • Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Vehicle Body Suspensions (AREA)
  • Structure Of Transmissions (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)

Abstract

The end position switch uses a pair of side-by-side switch discs, which are rotated in opposition to one another at different rates via respective cog wheels (5,7) with differing numbers of cog teeth, coupled to the axes of the switch discs via slip couplings. Each switch disc has a peripheral notch and an associated switch guide, for cooperation with the end of a switch arm (15), operating an electric switch via a lever mechanism.

Description

Die Erfindung betrifft eine auf eine Differenzgetriebe basierende Endlagenabschaltvorrichtung einer von einem Elektroantrieb angetriebenen Jalousie gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a differential gear based Endlagenabschaltvorrichtung a powered by an electric drive blind according to the preamble of claim 1.

Derartige Endlagenabschaltvorrichtungen sind beispielsweise durch die EP-A1-0 844 633 und die EP-B1-0 665 361 bekannt. Bei diesen bekannten Endlagenabschaltvorrichtungen sind die Kerben in den Schaltscheiben in der Regel als einfache V-förmige Einschnitte ausgebildet. Wenn die Schaltarmspritze in die eine gleiche Umfangsposition einehmenden Kerben der zwei Schaltscheiben einfällt, so kann es nach dem Abschalten des Elektroantriebs durch die Endlagenabschaltvorrichtung durch einen unzulässig großen Nachlauf dazu kommen, dass die Schaltscheiben noch weiterdrehen und dabei die Schaltarmspitze des Schaltarms wieder aus den Kerben herausgebracht wird. Der Motorstromkreis wird dann über den Mikroschalter wieder geschlossen, so dass der Elektroantrieb unbeabsichtigt weiterläuft. Der Nachlauf ist der Winkel, den die Abtriebswelle des Elektroantriebs und damit das Antriebsritzel der Endlagenabschaltvorrichtung nach dem Abschalten im stromlosen Zustand überstreicht. Er ist abhängig vom Übersetzungsverhältnis zwischen Drehzahl der Antriebswelle (Motorwelle) und der Drehzahl der Schaltscheibe, dem Ansprechverhalten und Wirksamkeit der Bremse und der Massenträgheit der rotierenden Teile. Zusätzlich kann sich durch Verschleiß die Bremswirkung verschlechtern, wodurch sich der Nachlauf vergrößert. Eine sichere Funktion ist nur durch eine vom Nachlauf unabhängige Endlagenabschaltvorrichtung möglich, die aber beim Bekannten mit relativ hohem konstruktivem Aufwand verbunden ist.Such Endlagenabschaltvorrichtungen are, for example, by EP-A1-0 844 633 and EP-B1-0 665 361 known. In these known Endlagenabschaltvorrichtungen The notches in the indexing disks are usually considered as simple V-shaped cuts formed. When the switch arm syringe into the a same circumferential position einhorn notches the two switching disks, so it may after switching off the electric drive by the Endlagenabschaltvorrichtung come to an unacceptably large caster, that the indexing disks continue to turn while the switching arm tip of the Shift arm is brought out of the notches again. The motor circuit it will then closed again via the microswitch so that the electric drive unintentionally continues. The caster is the angle that the output shaft of the Electric drive and thus the drive pinion of Endlagenabschaltvorrichtung swept after switching off in the de-energized state. He is dependent on Ratio between speed of the drive shaft (motor shaft) and the speed of the indexing disc, the response and effectiveness of Brake and the inertia of the rotating parts. In addition, can itself due to wear the braking effect deteriorate, causing the caster increased. A safe function is only by an independent of the caster Endpositionabschaltvorrichtung possible, but the acquaintance with relative high constructive effort is connected.

Durch die DE-C2-30 11 260 ist eine Schaltvorrichtung für den elektrischen Antrieb von Rollläden bekannt, die zwei mit verschiedenen Geschwindigkeiten angetriebene Nockenräder mit Profilkerben hat, in die zwei Schaltarmspitzen (Tastteile) zur Betätigung eines Schalters eingreifen können. Die rückwärtige Wandung jeder Profilkerbe ist nach hinten und seitlich nach außen abgeschrägt und geht in einen Nockenabschnitt über, dessen Radialhöhe etwa dem Profilkerbentiefstpunkt entspricht. Die Schaltarmspitzen und die abgeschrägten Wandungen der Profilkerben gleiten beim Weiterdrehen der Nockenräder aneinander und verschieben sich seitlich elastisch gegeneinander.By DE-C2-30 11 260 is a switching device for the electrical Drive of roller shutters known, the two at different speeds driven cam wheels with profile notches has, in the two Schaltarmspitzen (Tastteile) for engaging a switch can intervene. The backward Wall of each profile notch is chamfered to the rear and laterally outward and merges into a cam portion whose radial height is about the tread groove depth point equivalent. The switching arm tips and the beveled Walls of the profile notches glide together as the cam wheels continue to rotate and move laterally elastically against each other.

Die Aufgabe der Erfindung besteht daher darin, eine einfache Endlagenabschaltvorrichtung der im Oberbegriff des Anspruchs 1 genannten Art zu schaffen, bei der eine sichere Abschaltung des Elektroantriebs nach Erreichen der Endlage gewährleistet bleibt. The object of the invention is therefore a simple Endlagenabschaltvorrichtung to create the mentioned in the preamble of claim 1, at the safe shutdown of the electric drive after reaching the end position remains guaranteed.

Diese Aufgabe wird mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved with the features of claim 1.

Ein weiterer Vorteil der Erfindung besteht darin, dass das offene Bogensegment der auf dem Umfang der Schaltscheibe angeordneten Kerben durch eine unsymmetrische Ausbildung minimal gehalten werden kann. Dadurch kann das Zähnezahlverhältnis des Differenzgetriebes möglichst nahe 1 gewählt werden, wodurch ein großer Einstellbereich der Endlagenabschaltvorrichtung entsteht. Die Relativbewegung der Schaltscheiben zueinander und die Länge der offenen Bogensegmente müssen so aufeinander abgestimmt sein, dass die offenen Bogensegmente der beiden Schaltscheiben eine Umdrehung vor der eigentlichen Endlage so zueinander versetzt sind, dass die Schaltarmspitze nicht einfallen kann. Je kleiner das offene Bogensegment ist, desto geringer muss die Relativbewegung pro Umdrehung der Schaltscheiben zueinander sein. Je geringer die Relativbewegung ist, desto näher liegt dass Zähnezahlverhältnis des Differenzgetriebes bei 1.Another advantage of the invention is that the open arc segment the notches arranged on the circumference of the indexing disc by an asymmetrical Training can be kept minimal. This allows the teeth ratio the differential gear as close as possible 1, whereby a large adjustment range of Endlagenabschaltvorrichtung arises. The Relative movement of the switching discs to each other and the length of the open arc segments must be coordinated so that the open arc segments the two switching discs one revolution before the actual end position are offset from each other so that the Schaltarmspitze can not come. The smaller the open arc segment, the lower the relative movement per revolution of the switching discs to each other. The lower the Relative movement is, the closer that is the teeth ratio of the Differential gear at 1.

Bei der erfindungsgemäßen Endlagenabschaltvorrichtung wurde für den zur Verfügung stehenden Bauraum die Zähnezahlen der Zahnräder z.B. mit z1 =40 und z2 = 41 gewählt, wodurch sich ein Zähnezahlverhältnis von u = 1,025 ergibt. Das bedeutet, dass nach genau z1*u = 41 Umdrehungen - von Kerben gleicher Umfangsposition ausgehend - die Kerben wieder die gleiche Umfangsposition zueinander einnehmen. Durch eine Übersetzung i=0,5 zwischen Antriebsritzel und Zahnrad z1 =40 ergibt sich ein nutzbarer Einstellbereich der Endlagenabschaltvorrichtung von <82 (z1*u/i = 82) Umdrehungen, was für den Einsatzzweck ausreichend ist. In the Endlagenabschaltvorrichtung invention, the number of teeth of the gears was chosen for example with z 1 = 40 and z 2 = 41 for the available space, resulting in a teeth ratio of u = 1.025. This means that after exactly z 1 * u = 41 turns - starting from notches of the same circumferential position - the notches again assume the same circumferential position relative to one another. By a translation i = 0.5 between the drive pinion and gear z 1 = 40 results in a usable adjustment range of Endlagenabschaltvorrichtung of <82 (z 1 * u / i = 82) revolutions, which is sufficient for the application.

Gemäß einer vorteilhaften, weiteren Ausbildung der Erfindung ist die Schaltkulisse als zur benachbarten Schaltscheibe hin offene Nut unter Schaffung einer bogenförmigen, radial nach außen liegenden Nutwand ausgebildet.According to an advantageous, further embodiment of the invention, the shift gate as the adjacent switching disc open groove to create a arcuate, radially outward groove wall formed.

Eine weitere Ausbildung der Erfindung ist so getroffen, dass die Schaltarmspitze zwei seitlich nach außen stehende Stege zur Aufnahme in den Kerben und Kulissen der Schaltscheiben aufweist und dass zwischen den Stegen und dem Schaltarm jeweils eine Nut zur Aufnahme der zugehörigen Nutwand der Schaltscheibe vorgesehen ist.A further embodiment of the invention is made such that the switching arm tip two laterally outwardly projecting webs for inclusion in the notches and scenes having the switching discs and that between the webs and the Shift arm in each case a groove for receiving the associated groove wall of the indexing disk is provided.

Die Führung des Schaltarmes beim Einfall in die Schaltkulisse kann z.B. in zwei verschiedenen Arten erfolgen:The guidance of the switching arm upon incidence into the shift gate can e.g. in two different types take place:

Die vorgespannte Schaltarmspitze gleitet beim Einfallen in die Schaltkulisse zu erst auf dem Umfang der Schaltscheibe, dann entlang der Kerbenschräge hinab zum Nutgrund der offenen Nut.The preloaded shift arm tip slides when it enters the shift gate first on the circumference of the indexing disc, then down along the notch slope to the groove bottom of the open groove.

Die andere Variante sieht vor, dass die vorgespannte Schaltarmspitze beim Einfallen in die Schaltkulisse zu erst auf dem Umfang der Schaltscheibe gleitet, dann entlang der Kerbenschräge hinab, wird dann aber in der Nut des Schaltarms entlang der Nutwand der Schaltkulisse geführt. Der Nutgrund der offenen Nut ist dann nicht mehr zwingend notwendig.The other variant provides that the preloaded Schaltarmspitze when Slipping into the shift gate only on the circumference of the shift window, but then down the notch slope, but then in the groove of the Shift arm guided along the groove wall of the shift gate. The bottom of the groove open groove is then no longer necessary.

Gemäß einer weiteren Ausbildung der Erfindung ist die Höhe der Nutwand um mindestens die Hälfte der Breite des Steges des Schaltarmes geringer als die Breite der Schaltscheibe am Umfang der Schaltscheibe. Dadurch wird der Schaltarm beim Einfallen in die Schaltkulisse axial in dem zwischen den beiden Schaltscheiben entstehenden Schlitz geführt. According to a further embodiment of the invention, the height of the groove wall is around at least half the width of the web of the switching arm is lower than that Width of the indexing disk on the circumference of the indexing disk. This will be the Shift arm when falling into the shift gate axially in the between the two Slots resulting slot out.

Die Erfindung wird nun anhand eines Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1
die Stirnansicht eines geöffneten Gehäuses mit einer Endlagenabschaltvorrichtung gemäß der Erfindung,
Fig. 2
eine perspektivische Ansicht auf relevante Teile der Endlagenabschaltvorrichtung der Fig. 1 mit der Schaltarmspitze vor dem Einrücken in die Kerbe,
Fig. 3
eine perspektivische Ansicht auf relevante Teile der Endlagenabschaltvorrichtung der Fig. 1 mit in die Schaltkulisse eingerückter Schaltarmspitze,
Fig. 4
eine Explosionsansicht relevanter Teile der in der Fig. 2 bzw. Fig. 3 gezeigten Teile,
Fig. 5
die Stirnansicht einer der in den Figuren 1-4 gezeigten Schaltscheiben,
Fig. 6
eine Seitenansicht der Schaltscheibe nach Fig. 5,
Fig. 7
die Seitenansicht eines in den Figuren 1-4 gezeigten Schaltarms und
Fig. 8
eine Ansicht des Schaltarms nach Fig. 7 von unten.
The invention will now be explained in more detail with reference to an embodiment. Show it:
Fig. 1
the front view of an open housing with a Endlagenabschaltvorrichtung according to the invention,
Fig. 2
1 is a perspective view of relevant parts of the Endlagenabschaltvorrichtung of Figure 1 with the Schaltarmspitze before engaging in the notch.
Fig. 3
1 is a perspective view of relevant parts of the Endlagenabschaltvorrichtung of FIG. 1 with engaged in the shift gate switching arm tip,
Fig. 4
an exploded view of relevant parts of the parts shown in Fig. 2 and Fig. 3,
Fig. 5
the front view of one of the switching discs shown in Figures 1-4,
Fig. 6
a side view of the switching disk according to Fig. 5,
Fig. 7
the side view of a switching arm shown in Figures 1-4 and
Fig. 8
a view of the switching arm of FIG. 7 from below.

Aus Fig. 1 ist zu erkennen, dass in einem rohrförmigen Gehäuse 1 auf einer Grundplatte 2 des Gehäuses 1 zentral ein hohles Antriebsritzel 3 gelagert ist. Der Hohlraum 4 des Antriebsritzels 3 dient zur Aufnahme der Abtriebswelle des nicht dargestellten Elektromotors einer Jalousie, die auch von dieser Abtriebswelle angetrieben wird. Die auf dem Umfang des Antriebsritzels 3 angeordneten Zähne greifen in Zähne ein, die auf dem Umfang von vier auf der Grundplatte 2 gelagerten Zahnrädern angeordnet sind. In Fig. 1 sind links und rechts nur die Zahnräder 5, 7 zu sehen. Hinter jedem der Zahnräder 5, 7 verbirgt sich jeweils noch ein zweites Zahnrad 6 bzw. 8, wie aus Fig. 2 hervorgeht (In den Figuren 2 und 3 ist zu Darstellungszwecken ein Teil der Zahnrads 7 fortgelassen worden). Das Differenzgetriebe, bestehend aus den Zahnräder 5, 6 ist für die eine (beispielsweise obere) Endlage der Jalousie vorgesehen, während das Differenzgetriebe, bestehend aus den Zahnräder 7, 8, für die andere (beispielsweise untere) Endlage der Jalousie vorgesehen sind. Die Zähneanzahl der Zahnräder 5, 6 bzw. 7, 8 sind leicht unterschiedlich. Beispielsweise haben die Zahnräder 5, 7 jeweils 40 Zähne und die Zahnräder 6, 8 jeweils 41 Zähne. Die Zahnräder 5, 6 und ebenso die Zahnräder 7, 8 werden daher unterschiedlich schnell angetrieben.From Fig. 1 it can be seen that in a tubular housing 1 on a Base plate 2 of the housing 1 centrally a hollow drive pinion 3 is mounted. The cavity 4 of the drive pinion 3 serves to receive the output shaft of the not shown electric motor of a blind, which also from this output shaft is driven. The arranged on the circumference of the drive pinion 3 Teeth interfere with teeth on the circumference of four on the base plate 2 mounted gears are arranged. In Fig. 1, left and right are only the To see gears 5, 7. Behind each of the gears 5, 7 hides each a second gear 6 or 8, as is apparent from Fig. 2 (in the figures 2 and 3, a portion of the gear 7 is omitted for illustrative purposes was). The differential gear, consisting of the gears 5, 6 is for a (for example upper) end position of the blind provided while the Differential gear, consisting of the gears 7, 8, for the other (For example, lower) end position of the blind are provided. The number of teeth the gears 5, 6 and 7, 8 are slightly different. For example the gears 5, 7 each 40 teeth and the gears 6, 8 each 41 teeth. The gears 5, 6 and also the gears 7, 8 are therefore different driven fast.

Jedes Zahnrad 5-8 ist über jeweils eine nicht weiter erläuterte Rutschkupplung mit einer zugeordneten Schaltscheibe 9-12 verbunden, wie aus Fig. 2 hervorgeht. So ist die Schaltscheibe 9 dem Zahnrad 5, die Schaltscheibe 10 dem Zahnrad 6, die Schaltscheibe 11 dem Zahnrad 7 und die Schaltscheibe 12 dem Zahnrad 8 zugeordnet, wobei einerseits die Schaltscheiben 9, 10 und andererseits die Schaltscheiben 11, 12 unmittelbar nebeneinander liegen. Each gear 5-8 is each about a not further explained slip clutch connected with an associated switching disc 9-12, as is apparent from Fig. 2. Thus, the switching disk 9 is the gear 5, the switching disk 10 the Gear 6, the switching disk 11 the gear 7 and the switching disk 12 the Gear 8 assigned, on the one hand the switching discs 9, 10 and on the other the discs 11, 12 are immediately adjacent.

Auf den Umfang der Schaltscheiben 9, 10 wird die Schaltarmspitze eines Schaltarms 13 mittels einer Blattfeder 14 gedrückt (Fig. 1). In gleicher Weise sind ein weiterer Schaltarm 15 und eine weitere Blattfeder 16 für die Schaltscheiben 11, 12 vorgesehen.On the circumference of the switching discs 9, 10 is the Schaltarmspitze a Shift arm 13 by means of a leaf spring 14 is pressed (Fig. 1). In the same way are another switching arm 15 and another leaf spring 16 for the switching discs 11, 12 provided.

Die Schaltarme 13, 15 sind auf zwei auf der Grundplatte 2 feststehenden Achsen 17, 18 drehbar gelagert. Der Schaltarm 13 wirkt dabei über einen nicht näher beschriebenen Umlenkhebel auf einen Schaltstößel 19 eines Mikroschalters 20 ein, der den Strom für den Elektromotor in der einen Endlage unterbricht, während der Schaltarm 15 über einen nicht näher beschriebenen Umlenkhebel auf einen Schaltstößel 21 eines zweiten, in Fig. 1 nicht sichtbaren und unter dem Mikroschalter 20 liegenden Mikroschalters einwirkt, der den Strom für den Elektromotor in der anderen Endlage unterbricht.The switching arms 13, 15 are fixed to two on the base plate 2 Axles 17, 18 rotatably mounted. The switching arm 13 acts on a not Bearing lever described in detail on a switch plunger 19 of a microswitch 20 a, which interrupts the current for the electric motor in the one end position, during the switching arm 15 via a non-descriptive lever on a switch plunger 21 of a second, not visible in Fig. 1 and acting under the micro switch 20 microswitch acts, the Electricity for the electric motor in the other end position interrupts.

Jede Schaltscheibe der Schaltscheiben 9-12 ist auf ihrem Umfang mit einer Kerbe versehen, an die sich gemäß der Erfindung eine in Umfangsrichtung verlaufende, axial vertiefte Schaltkulisse anschließt. Exemplarisch sei nur die Schaltscheibe 11 beschrieben; die anderen Schaltscheiben 9, 10, 12 sind entsprechend ausgebildet.Each indexing disc of the indexing discs 9-12 is on its periphery with a Notch, to which according to the invention a circumferentially extending, axially recessed shift gate connects. Exemplary is only the Shift disc 11 described; the other discs 9, 10, 12 are corresponding educated.

Die Schaltscheibe 11 der Fig. 2 ist in Fig. 5 von unten dargestellt. Diese Schaltscheibe besteht aus einer kreisförmigen Scheibe 22 in der die Schaltkulisse 25 ausgebildet ist. Diese Schaltkulisse ist als zur benachbarten Schaltscheibe 12 hin offene Nut 26 unter Schaffung einer bogenförmigen, radial nach außen liegenden Nutwand 27 ausgebildet. Dabei ist die Höhe der Nutwand 27 um mindestens die Hälfte der Breite des Stegs des Schaltarmes (das ist in Fig. 6 die Breite der Nutwand 27) geringer bemessen als die Breite des Umfangsflansches 23. The indexing disk 11 of FIG. 2 is shown in Fig. 5 from below. This switching disc consists of a circular disc 22 in the shift gate 25th is trained. This shift gate is as the adjacent switching disc 12th towards open groove 26 to create an arcuate, radially outward lying groove wall 27 is formed. The height of the groove wall 27 is around at least half the width of the web of the switching arm (which is in Fig. 6 the Width of the groove wall 27) dimensioned smaller than the width of the peripheral flange 23rd

Ein Schaltarm 15 ist exemplarisch in den Figuren 7 und 8 dargestellt. Die Schaltarmspitze 28 des Schaltarms 15 ist an die Schaltkulissen 25 derart angepasst, dass sie nach ihrem Eingriff in die Kerben 24 für die Eingriffsdrehrichtung der Schaltscheiben 11, 12 in den Schaltkulissen 25 gehalten bleibt. Im Einzelnen besteht die Schaltarmspitze 28 aus zwei seitlich nach außen stehenden Stegen 29, 30 und einem in Längsrichtung des Schaltarms 15 verlaufenden Führungssteg 31. Zwischen dem Schaltarm 15 und dem Steg 29 ist eine Nut 32 ausgespart, in welche die Nutwand 27 beim Einrücken der Schaltarmspitze 28 Platz findet. Der Steg 29 gleited dabei auf dem Nutgrund der offenen Nut 26. Wie nicht dargestellt ist, erfolgt die Führung des Schaltarms in der anderen Schaltscheibe 12 in entsprechender Weise. Wie die Fig. 3 zeigt, wird der Führungssteg 31 zwischen den Nutwänden 27 der benachbarten Schaltscheiben 11, 12 geführt.A switching arm 15 is shown by way of example in FIGS. 7 and 8. The Schaltarmspitze 28 of the switching arm 15 is the shift gates 25 such adjusted that after engaging in the notches 24 for the direction of engagement the switching discs 11, 12 held in the shift gates 25 remains. In detail, the switching arm tip 28 consists of two laterally outwards standing webs 29, 30 and extending in the longitudinal direction of the switching arm 15 Guide bar 31. Between the switching arm 15 and the web 29 is a groove 32 recessed, in which the groove wall 27 upon engagement of Schaltarmspitze 28 place finds. The web 29 glides on the bottom of the groove open groove 26. As not shown, the leadership of the switching arm takes place in the other switching disc 12 in a corresponding manner. As FIG. 3 shows, the guide web 31 between the groove walls 27 of the adjacent Shift discs 11, 12 out.

Claims (4)

  1. End position switching device of a device driven by an electric drive, in particular a blind having a differential transmission, two switching discs (9, 10 or 11, 12), which sit on switching disc axles (33, 34 or 35, 36) which run one within the other, being disposed rotatably against each other for the relevant end position, said switching discs being driven at different speeds by means of toothed wheels (5, 6 or 7, 8) which are equipped with different numbers of teeth and are connected to the switching disc axles (33 - 36) via sliding couplings, the switching discs (9, 10 or 11, 12) being situated adjacent to each other and having a notch respectively on their circumference, in which notch a switch arm tip (28), which is pre-tensioned towards the circumference of the switching disc (9, 10 or 11, 12), of a switch arm can engage, said arm thereby actuating a switch tappet of a switch (20) via a reversing lever,
    characterised in that
    a switch connecting member (25), which extends in the circumferential direction and is axially recessed, abuts on each notch (24) and in that the switch arm tip (28) is adapted to the switch connecting members (25) such that, after its engagement in the notches (24) for the engagement direction of rotation of the switching discs (11, 12), it remains retained in the switch connecting members (25).
  2. End position switching device according to claim 1,
    characterised in that
    the switch connecting member (25) is configured as a groove (26) which is open towards the adjacent switching disc (12) whilst producing an arcuate, radially outwardly situated groove wall (27).
  3. End position switching device according to claim 2,
    characterised in that
    the switch arm tip has two laterally outwardly protruding webs (29, 30) for accommodating in the notches (24) and connecting members (25) of the switching discs (11, 12), and in that, between the webs (29, 30) and the switch arm (15), a groove (32) is provided respectively for accommodating the associated groove wall (27).
  4. End position switching device according to claim 2 or 3,
    characterised in that
    the height of the groove wall (27) on the circumference of the switching disc (11) is less than the width of the switching disc (11) by at least half of the width of the web of the switch arm (15).
EP01113327A 2000-07-11 2001-05-31 End position switching device Expired - Lifetime EP1172515B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033550A DE10033550A1 (en) 2000-07-11 2000-07-11 Endlagenabschaltvorrichtung
DE10033550 2000-07-11

Publications (3)

Publication Number Publication Date
EP1172515A2 EP1172515A2 (en) 2002-01-16
EP1172515A3 EP1172515A3 (en) 2003-08-20
EP1172515B1 true EP1172515B1 (en) 2005-12-21

Family

ID=7648468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01113327A Expired - Lifetime EP1172515B1 (en) 2000-07-11 2001-05-31 End position switching device

Country Status (5)

Country Link
EP (1) EP1172515B1 (en)
AT (1) ATE313691T1 (en)
DE (2) DE10033550A1 (en)
DK (1) DK1172515T3 (en)
ES (1) ES2261296T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2842940B1 (en) 2002-07-29 2005-02-04 Somfy AUTOMATIC STOP DEVICE FOR DRIVING A SOLAR PROTECTION, OCCULTATION OR CLOSURE ELEMENT

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455349A1 (en) * 1979-04-25 1980-11-21 Carpano & Pons CONTROL DEVICE FOR ELECTRIC MOTOR-REDUCER
US4372367A (en) * 1979-06-12 1983-02-08 Baldanello U Roller blinds
DE4402524C2 (en) * 1994-01-28 1998-07-09 Elero Gmbh Shaft limit switch
DE19648825A1 (en) * 1996-11-26 1998-05-28 Alsthom Cge Alcatel Limit switch device of an electric motor-driven blind

Also Published As

Publication number Publication date
EP1172515A3 (en) 2003-08-20
DE10033550A1 (en) 2002-01-24
EP1172515A2 (en) 2002-01-16
DK1172515T3 (en) 2006-05-08
ES2261296T3 (en) 2006-11-16
DE50108432D1 (en) 2006-01-26
ATE313691T1 (en) 2006-01-15

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