EP1611488B1 - Tourbillon - Google Patents

Tourbillon Download PDF

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Publication number
EP1611488B1
EP1611488B1 EP04716191A EP04716191A EP1611488B1 EP 1611488 B1 EP1611488 B1 EP 1611488B1 EP 04716191 A EP04716191 A EP 04716191A EP 04716191 A EP04716191 A EP 04716191A EP 1611488 B1 EP1611488 B1 EP 1611488B1
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EP
European Patent Office
Prior art keywords
tourbillon
bearing
balance
platform
main
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
EP04716191A
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German (de)
French (fr)
Other versions
EP1611488A2 (en
Inventor
Laurent Besse
Robert E. A. Jansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WATCH-U LICENCE AG
Original Assignee
Watch-U Licence AG
Watch U Licence AG
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Filing date
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Publication of EP1611488A2 publication Critical patent/EP1611488A2/en
Application granted granted Critical
Publication of EP1611488B1 publication Critical patent/EP1611488B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G04B17/285—Tourbillons or carrousels

Definitions

  • the invention relates to a tourbillon, respectively a tourbillon module, according to the preamble of the independent claim.
  • Watch movements with a tourbillon are known from the prior art. These are generally of complicated construction, resulting in disadvantages in the production, adjustment and maintenance.
  • EP 0 681 227 (henceforth EP227) is a tourbillon arranged in the center of the movement, which is mounted in front of a barrel.
  • the tourbillon has a main bearing, which serves to support the entire bogie of the tourbillon and the parts mounted on it.
  • This structure is complex and expensive in terms of installation and maintenance. Especially in case of a defect, it is necessary to disassemble the entire movement to gain access to the tourbillon.
  • the tourbillon known from EP'227 has a comparatively heavy, complicated structure, which has a negative effect on the accuracy due to the position of the center of gravity.
  • the tourbillon platform Since the inner ring of the main bearing is connected on the one hand to the base of the tourbillon and on the other hand in the interior at the height of the base the tourbillon platform has a bearing for the balance of the balance, a relatively large, complicated ball bearing is required, which must also be specially made. As is known, special ball bearings are very expensive to manufacture and can only be ordered in large numbers, this design has significant disadvantages in terms of accuracy and cost-effective production.
  • balance axis has due to the arrangement of the lower balance bearing, at the height of the platform of the tourbillon in the upper region of the inner ring of the bearing, only a comparatively minimum length, which has a negative effect on the mechanical stability and the bearing forces
  • a Another disadvantage is that both the main bearing of the tourbillon, and the lower bearing of the balance in the installed state are not accessible, so that the entire clock must be disassembled for maintenance.
  • WO01 / 18611 is a flying tourbillon with a main camp known.
  • This tourbillon has a simple, modular design and is characterized by its high accuracy.
  • the lower bearing of the balance spring is arranged in the interior of a sleeve in the lower region, which is firmly connected to the bogie.
  • the lower bearing of the balance axle is arranged substantially at the height of the main bearing of the tourbillon.
  • the object of the invention disclosed here is that of WO01 / 18611
  • Another object is to show a tourbillon, which has an improved robustness and a manufacture and maintenance-friendly structure.
  • the tourbillon according to the invention preferably has a modular construction, in which the actual tourbillon mechanism, including all essential parts, is combined in a tourbillon module.
  • the tourbillon module preferably has an interface to the rest of the movement and so that it can be used in a simple manner from the front or back in this or solved by this, without the whole movement must be disassembled.
  • the tourbillon has a platform which is mounted on one side (flying tourbillon), and on which the co-rotating components of the tourbillon, in particular balance, balance spring and escapement and the means required to hold them, are mounted.
  • a support in the dial area can be provided if necessary.
  • the platform of the tourbillon has a main bearing axis, which is connected to an inner ring of the ball bearing, preferably releasably connected.
  • the outer ring of the main bearing is connected to a base plate, which is used to attach the tourbillon in a clockwork.
  • the inner and / or the outer ring of the main bearing are preferably constructed so that the bearing clearance can be easily adjusted.
  • Tourbillon constructions known from the prior art generally have the disadvantage that an adjustment and maintenance of the tourbillon in the installed state is not possible. If such a tourbillon is to be maintained, the entire movement must be disassembled for this purpose.
  • the invention disclosed herein makes it possible to avoid this disadvantage.
  • the tourbillon disclosed herein has a preferably modular construction which allows the tourbillon to be partially or completely detached from the remainder of the movement.
  • One possibility is to place the tourbillon so that it is visible from the front of the movement and serviceable from the rear of the movement.
  • the tourbillon, or the tourbillon module is preferably arranged in an opening of the board of the movement, which extends over the entire depth, that is continuous.
  • the tourbillon respectively the tourbillon module inserted from the front or rear into a non-continuous opening, respectively, as a result of the modular structure easily removed from this.
  • the platform of the tourbillon preferably has an outer toothing for engagement in a wheel train and is preferably the part with the largest Diameter, ie determining the diameter of the opening in the circuit board of the movement.
  • the accuracy of a tourbillon is influenced by the mass of the moving parts and their (overall) center of gravity.
  • a lower bearing of a balance spring is fixedly arranged.
  • the length of the balance axis is thereby increased compared to a co-rotating bearing, which has a positive effect on the stability and robustness, respectively, allows to use differently sized bearings.
  • Both the main bearing and the lower bearing of the balance are, in particular with respect to each other, preferably arranged so that they are accessible for maintenance and inspection purposes without much effort.
  • the lower bearing of the balance and the main bearing of the platform of the tourbillon are preferably arranged substantially coaxially, as this mechanical shocks and vibrations are derived. By arranging the lower balance bearing at a lower level, shock loads and vibrations are better absorbed. Finished bearings are preferably fixed by pressing, screwing, clamping or gluing and, if necessary, secured with a suitable securing means.
  • FIG. 1 shows a tourbillon in a perspective view.
  • the construction of the tourbillon is a flying tourbillon, which is mounted on one side.
  • the tourbillon is designed as a tourbillon module 1, which is manufactured independently of the rest of the movement if necessary, adjusted if necessary and then mounted.
  • the tourbillon module 1 has a platform 2, which is rotatably mounted on a base plate 3 about a central axis A.
  • the platform 2 has an external toothing 8, via which the tourbillon module 1 is driven on the clockwork side, respectively the movement of the movement is regulated.
  • a balance 9 is arranged coaxially to the axis A, which is operatively connected to a coil spring 10.
  • the balance 9 is in operative connection with an escape wheel 11 and an armature 12 (only partially visible).
  • the escape wheel 11 is on an escape wheel axis 13 (see. FIG. 4 ) attached.
  • a pinion 14 is arranged on the escape wheel axis 13, which meshes with a centered on the axis
  • a fixed gear 15 (see. FIG. 2 , respectively FIG. 4 ) mounted on the base plate 3.
  • three supports 16 are arranged, which serve to hold a main bridge 17.
  • In the middle of the main bridge 17 is an upper balance bearing 18 can be seen, which is used to support a balance shaft 19 (see. FIG. 4 ), on which the balance 9 is attached.
  • a control mechanism 20 is used to fine tune the accuracy.
  • FIG. 2 shows the tourbillon module 1 off FIG. 1 in a rear view.
  • the base plate 3 has a main opening 21, in which a main bearing 22 is arranged, which serves to support the platform 2 of the tourbillon 1 relative to the base plate 3
  • the main bearing is a ball bearing 22, the outer ring 23 is fixed to the base plate 3 ,
  • the inner ring 24 (see. FIG. 4 ) is operatively connected to the platform 2.
  • a balance bearing bridge 25 is disposed in front of the main bearing 22, ie normally on the side remote from the dial, which partially covers the main bearing 22.
  • the balance bearing bridge 25 is arranged in the region of the opening 21 and has a lower balance bearing 26 in the center.
  • the lower balance bearing 26 In contrast to the upper balance bearing 18, which is operatively connected to the platform 2 and rotates with it, the lower balance bearing 26 is fixed and does not perform any rotational movement.
  • the Unruhlagermaschine 25, here pronounced of a Maltese cross, has four radial circumferentially arranged Recesses 27, which release the view of the main bearing 22 arranged behind it. Through this opening, it is possible to control the main bearing 22.
  • the balance bearing bridge 25 is pressed into the opening 21 here.
  • a screw connection it can be seen how the pinion 14 fastened on an escape wheel axle 13 meshes with the gear 15 centered on the axis A.
  • two of the three supports 16 can be seen in rear view, which serve to hold the main bridge 17 of the tourbillon 1.
  • the supports 17 are pressed into the base 2.
  • the base plate 3 has two first attachment openings 30, which serve for fastening the tourbillon module 1 in a clockwork (not shown in detail).
  • two fastening screws 29 are arranged, which serve for fastening of the gear 15 on the base plate 3.
  • FIG. 3 shows a plan view of the tourbillon 1.
  • the coil spring 10 is in the embodiment shown at its inner end with the balance 9 and at its outer end with the main bridge 17, respectively the control mechanism 20 operatively connected.
  • the balance 9 is connected to the escape wheel 11 and the armature 12 which is rotatably mounted about an armature axis 31, in operative connection.
  • Both the escape wheel axle 13, and the escape wheel axle 30 are mounted in bearings which are operatively connected to the platform 2, respectively the main bridge 17.
  • the three supports 16 are arranged, on which the main bridge 17 are fastened by means of screw 31.
  • the upper balance bearing 18 is arranged.
  • FIG. 4 shows a section through the tourbillon module 1 according to FIG. 3 along the section line BB.
  • the platform 2 of the tourbillon has a platform main axis 32 with a central opening 34.
  • the main platform axis 32 is formed here by a platform sleeve 32, which is firmly connected to the platform 2. If necessary, these can be integrally formed.
  • On the platform sleeve 32 is the inner ring 24 of the main bearing 22 plugged and secured with a locking ring 33.
  • the connection between the inner ring 24 and the platform sleeve 32 is detachable, so that a simple assembly / disassembly is possible.
  • the platform sleeve 32 may also form the inner ring of the bearing. Between the inner ring 24 and the outer ring 23 balls 40 of the ball bearing can be seen. The outer ring 23 of the main bearing 22 is pressed into the main opening 21 of the base plate 3
  • the platform sleeve 32 has a continuous opening 34 in which the balance spring 19 is arranged.
  • the balance spring 19 is mounted radially and axially at its upper end in the illustration by an upper balance bearing 18 and at its lower end in a lower balance bearing 26, so that it is freely rotatable about its axis A.
  • the balance bearings 18, 26 are concerned depending on two jewels, one of which is responsible for the axial and the other for the radial bearing.
  • the lower balance bearing 26 is arranged outside the platform 2 on the fixed side and, unlike the upper balance bearing 19, does not rotate with the platform 2. There is no direct connection between the platform sleeve 32 and the lower balance bearing 26 in the embodiment shown.
  • the lower balance bearing 26 is arranged in a balance bearing bridge opening 35 of the balance bearing bridge 25.
  • the balance bearing bridge 25 is pressed into the cylindrical main opening 21 in the illustrated embodiment. Other fasteners are possible.
  • the upper balance bearing 18 is here pressed into a main bridge opening 36 of the main bridge 17, which are fastened on the platform 2 via three supports 16 (two of which are visible).
  • the main bridge 17 is releasably screwed by means of fastening screws 37 with the supports 16 Other fastening means are possible.
  • Due to the arrangement of the balance bearings 18, 26, the balance spring 19 has a comparatively maximum length. This has a positive effect on the load the balance bearings 18, 26. In addition, the bearing loads of the lower balance bearing 26 are not derived via the main bearing.
  • the balance 9 On the balance shaft 19, the balance 9 is arranged.
  • the coil spring 10 is in the region of its inner end 38 with the balance 9 and in the region of its outer end 39 with a control mechanism 20, and the platform 2, operatively connected.
  • the balance 9 is over an armature 12 with an escape wheel 11 in operative connection.
  • the escape wheel 11, and a pinion 14 are rigidly connected to each other via an escape wheel axis 13 and mounted rotatably about this.
  • the escape wheel axle 13 is mounted in two armature wheel bearings 41.
  • the pinion 14 engages in the internal toothing of the toothed wheel 15.
  • the lower balance bearing is arranged outside the platform. This reduces the mass rotating in the tourbillon, which has a positive effect on precision and accuracy.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rolling Contact Bearings (AREA)
  • Support Of The Bearing (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Description

Die Erfindung betrifft ein Tourbillon, respektive ein Tourbillonmodul, gemäss dem Oberbegriff des unabhängigen Patentanspruchs.The invention relates to a tourbillon, respectively a tourbillon module, according to the preamble of the independent claim.

Aus dem Stand der Technik sind Uhrwerke mit einem Tourbillon bekannt Diese sind in der Regel kompliziert aufgebaut, wodurch Nachteile bei der Herstellung, Justage und Wartung entstehen.Watch movements with a tourbillon are known from the prior art. These are generally of complicated construction, resulting in disadvantages in the production, adjustment and maintenance.

EP 0 681 227 (fortan EP227) ist ein in der Mitte des Uhrwerks angeordnetes Tourbillon bekannt, das vor einem Federhaus montiert ist Das Tourbillon weist ein Hauptlager auf, das zur Lagerung des gesamten Drehgestells des Tourbillons und der darauf montierten Teile dient. Dieser Aufbau ist hinsichtlich Montage und Unterhalt aufwendig und teuer. Insbesondere bei einem Defekt ist es erforderlich das ganze Uhrwerk zu demontieren, um Zugang zum Tourbillon zu erhalten. Das aus EP'227 bekannte Tourbillon weist einen vergleichsweise schweren, komplizierten Aufbau auf, der sich aufgrund der Lage des Schwerpunktes negativ auf die Ganggenauigkeit auswirkt Da der Innenring des Hauptlagers einerseits mit der Basis des Tourbillons verbunden ist und andererseits im Innern auf der Höhe der Basis der Tourbillonplattform ein Lager für die Lagerung der Unruhachse aufweist, ist ein relativ grosses, kompliziertes Kugellager erforderlich, das zudem speziell angefertigt werden muss. Da bekanntermassen Spezialkugellager sehr teuer in der Herstellung sind und diese nur in grossen Stückzahlen geordert werden können, weist diese Konstruktion erhebliche Nachteile hinsichtlich Genauigkeit und kostengünstiger Herstellung auf. Ein weiterer Nachteil besteht darin, dass die Unruhachse aufgrund der Anordnung des unteren Unruhlagers, auf der Höhe der Plattform des Tourbillons im oberen Bereich des Innenrings des Lagers, nur eine vergleichsweise minimale Länge aufweist, die sich negativ auf die mechanische Stabilität und die Lagerkräfte auswirkt Ein weiterer Nachteil besteht darin, dass sowohl das Hauptlager des Tourbillons, als auch das untere Lager der Unruh im eingebauten Zustand nicht zugänglich sind, so dass für Wartungsarbeiten die gesamte Uhr zerlegt werden muss. EP 0 681 227 (henceforth EP227) is a tourbillon arranged in the center of the movement, which is mounted in front of a barrel. The tourbillon has a main bearing, which serves to support the entire bogie of the tourbillon and the parts mounted on it. This structure is complex and expensive in terms of installation and maintenance. Especially in case of a defect, it is necessary to disassemble the entire movement to gain access to the tourbillon. The tourbillon known from EP'227 has a comparatively heavy, complicated structure, which has a negative effect on the accuracy due to the position of the center of gravity. Since the inner ring of the main bearing is connected on the one hand to the base of the tourbillon and on the other hand in the interior at the height of the base the tourbillon platform has a bearing for the balance of the balance, a relatively large, complicated ball bearing is required, which must also be specially made. As is known, special ball bearings are very expensive to manufacture and can only be ordered in large numbers, this design has significant disadvantages in terms of accuracy and cost-effective production. Another disadvantage is that the balance axis has due to the arrangement of the lower balance bearing, at the height of the platform of the tourbillon in the upper region of the inner ring of the bearing, only a comparatively minimum length, which has a negative effect on the mechanical stability and the bearing forces A Another disadvantage is that both the main bearing of the tourbillon, and the lower bearing of the balance in the installed state are not accessible, so that the entire clock must be disassembled for maintenance.

Die Firma IWC, Schaffhausen, baut seit 1993 ein fliegendes Tourbillon mit einer einseitigen Kugellagerung in das Modell "II Destriera Scafusia". Dieses weist ein Drehgestell (Tourbillonbasis) auf, die mit dem Aussenring des Kugellagers verbunden ist. Der Innenring des Lagers ist feststehend. Oberhalb des Kugellagers ist, auf der Höhe der Plattform des Drehgestells, das untere Unruhlager angeordnet Ein Nachteil dieser Konstruktion stellt der komplizierte, verschachtelte Aufbau dar, der eine gewisse Bauhöhe erfordert. Damit der untere Bereich des Tourbillons zugänglich ist, muss der gesamte Tourbillon zerlegt werden. Ein weiterer Nachteil besteht darin, dass das Tourbillon, insbesondere dessen Lager, im eingebauten Zustand nicht von aussen zugänglich sind. Aufgrund der Anordnung des relativ hohen Gewichtes und des Schwerpunktes ergeben sich Unterschiede in der Ganggenauigkeit abhängig von der Ausrichtung des Tourbillons.The company IWC, Schaffhausen, builds since 1993 a flying tourbillon with a one-sided ball bearing in the model "II Destriera Scafusia". This has a bogie (Tourbillonbasis), which is connected to the outer ring of the ball bearing. The inner ring of the bearing is fixed. Above the ball bearing is located at the height of the platform of the bogie, the lower balance bearing A disadvantage of this construction is the complicated, nested structure, which requires a certain height. In order for the lower part of the tourbillon to be accessible, the entire tourbillon must be disassembled. Another disadvantage is that the tourbillon, in particular its bearings, are not accessible from the outside in the installed state. Due to the arrangement of the relatively high weight and the center of gravity differences in accuracy result depending on the orientation of the tourbillon.

Aus WO01/18611 ist ein fliegendes Tourbillon mit einem Hauptlager bekannt. Dieses Tourbillon weist einen einfachen, modularen Aufbau auf und zeichnet sich durch seine hohe Ganggenauigkeit aus. Das untere Lager der Unruhachse ist im Innern einer Hülse im unteren Bereich angeordnet, die mit dem Drehgestell fest verbunden ist. Das untere Lager der Unruhachse ist im Wesentlichen auf der Höhe des Hauptlagers des Tourbillons angeordnet.Out WO01 / 18611 is a flying tourbillon with a main camp known. This tourbillon has a simple, modular design and is characterized by its high accuracy. The lower bearing of the balance spring is arranged in the interior of a sleeve in the lower region, which is firmly connected to the bogie. The lower bearing of the balance axle is arranged substantially at the height of the main bearing of the tourbillon.

Die Aufgabe der hier offenbarten Erfindung besteht darin, das aus WO01/18611 bekannte Tourbillon derart weiterzuentwickeln, dass es eine weiter verbesserte, lageoptimierte Ganggenauigkeit aufweist Eine weitere Aufgabe besteht darin ein Tourbillon zu zeigen, das eine verbesserte Robustheit und einen herstellungs- und wartungsfreundlichen Aufbau besitzt.The object of the invention disclosed here is that of WO01 / 18611 To further develop known tourbillon in such a way that it has a further improved, position-optimized accuracy accuracy Another object is to show a tourbillon, which has an improved robustness and a manufacture and maintenance-friendly structure.

Das erfindungsgemässe Tourbillon weist bevorzugt einen modularen Aufbau auf, bei dem der eigentliche Tourbillonmeachanismus, inklusive aller wesentlichen Teile, in einem Tourbillonmodul zusammengefasst ist. Das Tourbillonmodul weist bevorzugt eine Schnittstelle zum Rest des Uhrwerks auf und so dass es auf einfache Art und Weise von vorne oder hinten in dieses eingesetzt oder von diesem gelöst werden kann, ohne dass das ganze Uhrwerk zerlegt werden muss.The tourbillon according to the invention preferably has a modular construction, in which the actual tourbillon mechanism, including all essential parts, is combined in a tourbillon module. The tourbillon module preferably has an interface to the rest of the movement and so that it can be used in a simple manner from the front or back in this or solved by this, without the whole movement must be disassembled.

Das Tourbillon weist eine Plattform auf, die einseitig gelagert ist (fliegender Tourbillon), und an der die mitrotierenden Bestandteile des Tourbillons, insbesondere Unruh, Unruhfeder und Hemmung und die zur Halterung derselben erforderlichen Mittel, montiert sind. Eine Abstützung im Zifferblattbereich kann bei Bedarf vorgesehen werden.The tourbillon has a platform which is mounted on one side (flying tourbillon), and on which the co-rotating components of the tourbillon, in particular balance, balance spring and escapement and the means required to hold them, are mounted. A support in the dial area can be provided if necessary.

Für die Lagerung der Plattform des Tourbillons wird bevorzugt ein normiertes Standardkugellager verwendet, wodurch auf kostenintensive Spezialanfertigungen verzichtet werden kann. Die Plattform des Tourbillons weist eine Hauptlagerachse auf, die mit einem Innenring des Kugellagers, vorzugsweise lösbar, verbunden ist. Der Aussenring des Hauptlagers ist mit einer Basisplatte verbunden, die zur Befestigung des Tourbillons in einem Uhrwerk dient. Der Innen- und/oder der Aussenring des Hauptlagers sind bevorzugt so aufgebaut, dass das Lagerspiel einfach eingestellt werden kann.For the storage of the platform of the tourbillon a standardized standard ball bearing is preferably used, which can be dispensed with costly custom-made. The platform of the tourbillon has a main bearing axis, which is connected to an inner ring of the ball bearing, preferably releasably connected. The outer ring of the main bearing is connected to a base plate, which is used to attach the tourbillon in a clockwork. The inner and / or the outer ring of the main bearing are preferably constructed so that the bearing clearance can be easily adjusted.

Die aus dem Stand der Technik bekannten Tourbillonkonstruktionen weisen in der Regel den Nachteil auf, dass ein Justieren und Warten des Tourbillons im eingebauten Zustand nicht möglich ist. Falls ein solches Tourbillon gewartet werden soll, muss zu diesem Zweck das gesamte Uhrwerk zerlegt werden.The Tourbillon constructions known from the prior art generally have the disadvantage that an adjustment and maintenance of the tourbillon in the installed state is not possible. If such a tourbillon is to be maintained, the entire movement must be disassembled for this purpose.

Die hier offenbarte Erfindung ermöglicht es diesen Nachteil zu vermeiden. Das hier offenbarte Tourbillon weist einen vorzugsweise modularen Aufbau auf, der es ermöglicht das Tourbillon teilweise oder ganz vom Rest des Uhrwerks zu lösen. Zudem besteht die Möglichkeit, die Lager des Tourbillons so anzuordnen, dass sie zu Wartungszwecken zugänglich sind, ohne dass das gesamte Tourbillon, respektive das Uhrwerk zerlegt werden muss. Eine Möglichkeit besteht darin, das Tourbillon so anzuordnen, dass es von der Vorderseite des Uhrwerks sichtbar und von der Hinterseite des Uhrwerks wartbar ist. Das Tourbillon, respektive das Tourbillonmodul ist bevorzugt in einer Öffnung der Platine des Uhrwerks angeordnet, die sich über die ganze Tiefe erstreckt, d.h. durchgängig ist. Bei einer anderen Ausführungsform ist das Tourbillon, respektive das Tourbillonmodul von vorne oder hinten in eine nicht durchgängige Öffnung eingesetzt, respektive infolge des modularen Aufbaus einfach aus dieser entnehmbar. Die Plattform des Tourbillons weist bevorzugt eine Aussenverzahnung zum Eingriff in ein Räderwerk auf und ist bevorzugt das Teil mit dem grössten Durchmesser, d.h. bestimmend für den Durchmesser der Öffnung in der Platine des Uhrwerks.The invention disclosed herein makes it possible to avoid this disadvantage. The tourbillon disclosed herein has a preferably modular construction which allows the tourbillon to be partially or completely detached from the remainder of the movement. In addition, it is possible to arrange the bearings of the tourbillon so that they are accessible for maintenance, without the entire tourbillon, or the movement must be disassembled. One possibility is to place the tourbillon so that it is visible from the front of the movement and serviceable from the rear of the movement. The tourbillon, or the tourbillon module is preferably arranged in an opening of the board of the movement, which extends over the entire depth, that is continuous. In another embodiment, the tourbillon, respectively the tourbillon module inserted from the front or rear into a non-continuous opening, respectively, as a result of the modular structure easily removed from this. The platform of the tourbillon preferably has an outer toothing for engagement in a wheel train and is preferably the part with the largest Diameter, ie determining the diameter of the opening in the circuit board of the movement.

Die Ganggenauigkeit eines Tourbillons wird beeinflusst durch die Masse der bewegten Teile und deren (Gesamt-) Schwerpunkt. Um die Gesamtmasse des rotierenden Teils des Tourbillons zu minimieren, ist ein unteres Lager einer Unruhachse feststehend angeordnet. Die Länge der Unruhachse wird dadurch im Vergleich zu einem mitdrehenden Lager vergrössert, was sich positiv auf die Stabilität und Robustheit auswirkt, respektive ermöglicht, anders dimensionierte Lager zu verwenden.The accuracy of a tourbillon is influenced by the mass of the moving parts and their (overall) center of gravity. In order to minimize the total mass of the rotating part of the tourbillon, a lower bearing of a balance spring is fixedly arranged. The length of the balance axis is thereby increased compared to a co-rotating bearing, which has a positive effect on the stability and robustness, respectively, allows to use differently sized bearings.

Sowohl das Hauptlager als auch das untere Lager der Unruh sind, insbesondere gegenüber einander, bevorzugt so angeordnet, dass sie für Wartungs- und Inspektionszwecke ohne grossen Aufwand zugänglich sind. Das untere Lager der Unruh und das Hauptlager der Plattform des Tourbillons sind bevorzugt im Wesentlichen koaxial angeordnet, da dadurch mechanische Stösse und Schwingungen abgeleitet werden. Durch eine Anordnung des unteren Unruhlagers auf einer tieferen Ebene, werden Stossbelastungen und Vibrationen besser absorbiert. Fertige Lager werden bevorzugt durch Einpressen, Schrauben, Klemmen oder Kleben befestigt und bei Bedarf mit einem geeigneten Sicherungsmittel gesichert.Both the main bearing and the lower bearing of the balance are, in particular with respect to each other, preferably arranged so that they are accessible for maintenance and inspection purposes without much effort. The lower bearing of the balance and the main bearing of the platform of the tourbillon are preferably arranged substantially coaxially, as this mechanical shocks and vibrations are derived. By arranging the lower balance bearing at a lower level, shock loads and vibrations are better absorbed. Finished bearings are preferably fixed by pressing, screwing, clamping or gluing and, if necessary, secured with a suitable securing means.

Die Erfindung wird anhand der in den nachfolgenden Figuren gezeigten Ausführungsformen näher erläutert. Es zeigen schematisch und vereinfacht:

Fig. 1
ein Tourbillonmodul in einer perspektivischen Ansicht;
Fig. 2
das Tourbillonmodul gemäss Figur 1 in einer Rückansicht;
Fig. 3
das Tourbillonmodul auf Figur 1 in einer Draufsicht;
Fig. 4
einen Schnitt durch das Tourbillonmodul gemäss Figur 3.
The invention will be explained in more detail with reference to the embodiments shown in the following figures. It shows schematically and simplified:
Fig. 1
a tourbillon module in a perspective view;
Fig. 2
the tourbillon module according to FIG. 1 in a rear view;
Fig. 3
the tourbillon module on FIG. 1 in a plan view;
Fig. 4
a section through the tourbillon module according to FIG. 3 ,

Figur 1 zeigt ein Tourbillon in einer perspektivischen Darstellung. Bei der Bauart des Tourbillons handelt es sich um ein fliegendes Tourbillon, das einseitig gelagert ist. Das Tourbillon ist als Tourbillonmodul 1 konzipiert, das bei Bedarf unabhängig vom Rest des Uhrwerks gefertigt, bei Bedarf justiert und anschliessend montiert wird. Das Tourbillonmodul 1 weist eine Plattform 2 auf, die auf einer Basisplatte 3 um eine zentrische Achse A drehbar gelagert ist. Die Plattform 2 weist eine Aussenverzahnung 8 auf, über welche das Tourbillonmodul 1 uhrwerksseitig angetrieben, respektive der Gang des Uhrwerks geregelt wird. Auf der Plattform 2 ist koaxial zur Achse A eine Unruh 9 angeordnet, die mit einer Spiralfeder 10 wirkverbunden ist. Die Unruh 9 steht mit einem Ankerrad 11 und einem Anker 12 (nur teilweise ersichtlich) in Wirkverbindung. Das Ankerrad 11 ist auf einer Ankerradachse 13 (vgl. Figur 4) befestigt. Auf der unteren Seite der Plattform 2 ist auf der Ankerradachse 13 ein Ritzel 14 angeordnet, das mit einem auf der Achse A zentrierten feststehenden Zahnrad 15 kämmt (vgl. Figur 2, respektiver Figur 4), das auf der Basisplatte 3 befestigt ist. Auf der Plattform 2 sind drei Stützen 16 angeordnet, die zur Halterung einer Hauptbrücke 17 dienen. In der Mitte der Hauptbrücke 17 ist ein oberes Unruhlager 18 zu erkennen, das zur Lagerung einer Unruhachse 19 (vgl. Figur 4) dient, auf, der die Unruh 9 befestigt ist. Ein Regelmechanismus 20 dient zur Feineinstellung der Ganggenauigkeit. FIG. 1 shows a tourbillon in a perspective view. The construction of the tourbillon is a flying tourbillon, which is mounted on one side. The tourbillon is designed as a tourbillon module 1, which is manufactured independently of the rest of the movement if necessary, adjusted if necessary and then mounted. The tourbillon module 1 has a platform 2, which is rotatably mounted on a base plate 3 about a central axis A. The platform 2 has an external toothing 8, via which the tourbillon module 1 is driven on the clockwork side, respectively the movement of the movement is regulated. On the platform 2, a balance 9 is arranged coaxially to the axis A, which is operatively connected to a coil spring 10. The balance 9 is in operative connection with an escape wheel 11 and an armature 12 (only partially visible). The escape wheel 11 is on an escape wheel axis 13 (see. FIG. 4 ) attached. On the lower side of the platform 2, a pinion 14 is arranged on the escape wheel axis 13, which meshes with a centered on the axis A fixed gear 15 (see. FIG. 2 , respectively FIG. 4 ) mounted on the base plate 3. On the platform 2, three supports 16 are arranged, which serve to hold a main bridge 17. In the middle of the main bridge 17 is an upper balance bearing 18 can be seen, which is used to support a balance shaft 19 (see. FIG. 4 ), on which the balance 9 is attached. A control mechanism 20 is used to fine tune the accuracy.

Figur 2 zeigt das Tourbillonmodul 1 aus Figur 1 in einer Rückansicht. Die Basisplatte 3 weist eine Hauptöffnung 21 auf, in der ein Hauptlager 22 angeordnet ist, das zur Lagerung der Plattform 2 des Tourbillons 1 gegenüber der Basisplatte 3 dient Beim Hauptlager handelt es sich um ein Kugellager 22, dessen Aussenring 23 an der Basisplatte 3 befestigt ist. Der Innenring 24 (vgl. Figur 4) ist mit der Plattform 2 wirkverbunden. In der Darstellung ist vor dem Hauptlager 22, d.h. im Normalfall auf der zifferblattabgewandten Seite, eine Unruhlagerbrücke 25 angeordnet, welche das Hauptlager 22 teilweise verdeckt. Die Unruhlagerbrücke 25 ist im Bereich der Öffnung 21 angeordnet und weist in Zentrum ein unteres Unruhlager 26 auf. Im Unterschied zum oberen Unruhlager 18, das mit der Plattform 2 wirkverbunden ist und mit dieser mitrotiert, ist das untere Unruhlager 26 feststehend angeordnet und führt keine Drehbewegung aus. Die Unruhlagerbrücke 25, die hier entfernt an ein Malteserkreuz erinnert, weist vier radiale auf dem Umfang angeordnete Aussparungen 27 auf, welche die Sicht auf das dahinter angeordnete Hauptlager 22 freigeben. Durch diese Öffnung besteht die Möglichkeit das Hauptlager 22 zu kontrollieren. FIG. 2 shows the tourbillon module 1 off FIG. 1 in a rear view. The base plate 3 has a main opening 21, in which a main bearing 22 is arranged, which serves to support the platform 2 of the tourbillon 1 relative to the base plate 3 The main bearing is a ball bearing 22, the outer ring 23 is fixed to the base plate 3 , The inner ring 24 (see. FIG. 4 ) is operatively connected to the platform 2. In the illustration, a balance bearing bridge 25 is disposed in front of the main bearing 22, ie normally on the side remote from the dial, which partially covers the main bearing 22. The balance bearing bridge 25 is arranged in the region of the opening 21 and has a lower balance bearing 26 in the center. In contrast to the upper balance bearing 18, which is operatively connected to the platform 2 and rotates with it, the lower balance bearing 26 is fixed and does not perform any rotational movement. The Unruhlagerbrücke 25, here reminiscent of a Maltese cross, has four radial circumferentially arranged Recesses 27, which release the view of the main bearing 22 arranged behind it. Through this opening, it is possible to control the main bearing 22.

Die Unruhlagerbrücke 25 ist hier in die Öffnung 21 eingepresst. Alternativ besteht die Möglichkeit die Unruhlagerbrücke 25 mittels einer Schrauben-, einer Klemm- oder einer Klebeverbindung zu befestigen. In der gezeigten Ansicht ist zu erkennen, wie das auf einer Ankerradachse 13 befestigte Ritzel 14 mit dem auf der Achse A zentrierten Zahnrad 15 kämmt. Auf der Plattform 2 sind zwei der drei Stützen 16 in Rückansicht zu sehen, die zur Halterung der Hauptbrücke 17 des Tourbillons 1 dienen. Die Stützen 17 sind in die Basis 2 eingepresst Die Basisplatte 3 weist zwei erste Befestigungsöffnungen 30 auf, die zur Befestigung des Tourbillonmoduls 1 in einem Uhrwerk (nicht näher dargestellt) dienen. In zwei zweite Öffnungen 28 sind zwei Befestigungsschrauben 29 angeordnet, die zur Befestigung des Zahnrades 15 auf der Basisplatte 3 dienen.The balance bearing bridge 25 is pressed into the opening 21 here. Alternatively, it is possible to fasten the balance bearing bridge 25 by means of a screw connection, a clamping connection or an adhesive connection. In the view shown, it can be seen how the pinion 14 fastened on an escape wheel axle 13 meshes with the gear 15 centered on the axis A. On the platform 2, two of the three supports 16 can be seen in rear view, which serve to hold the main bridge 17 of the tourbillon 1. The supports 17 are pressed into the base 2. The base plate 3 has two first attachment openings 30, which serve for fastening the tourbillon module 1 in a clockwork (not shown in detail). In two second openings 28, two fastening screws 29 are arranged, which serve for fastening of the gear 15 on the base plate 3.

Figur 3 zeigt eine Draufsicht des Tourbillons 1. Auf der Plattform 2 ist die im Wesentlichen koaxial zur Achse A angeordnete Unruh 9 zu sehen. Die Spiralfeder 10 ist bei der gezeigten Ausführungsform an ihrem innen liegende Ende mit der Unruh 9 und an ihrem aussen liegenden Ende mit der Hauptbrücke 17, respektive dem Regelmechanismus 20 wirkverbunden. Die Unruh 9 steht mit dem Ankerrad 11 und dem Anker 12, der um einen Ankerachse 31 drehbar angeordnet ist, in Wirkverbindung. Sowohl die Ankerradachse 13, als auch die Ankerradachse 30 sind in Lagern gelagert die auf der Plattform 2, respektive dem Hauptbrücke 17 wirkverbunden sind. Auf der Plattform 2 sind die drei Stützen 16 angeordnet, auf denen die Hauptbrücke 17 mittels Schraubverbindungen 31 befestigt sind. In der Mitte der Hauptbrücke 17 ist das obere Unruhlager 18 angeordnet. FIG. 3 shows a plan view of the tourbillon 1. On the platform 2, the substantially coaxial with the axis A arranged balance 9 can be seen. The coil spring 10 is in the embodiment shown at its inner end with the balance 9 and at its outer end with the main bridge 17, respectively the control mechanism 20 operatively connected. The balance 9 is connected to the escape wheel 11 and the armature 12 which is rotatably mounted about an armature axis 31, in operative connection. Both the escape wheel axle 13, and the escape wheel axle 30 are mounted in bearings which are operatively connected to the platform 2, respectively the main bridge 17. On the platform 2, the three supports 16 are arranged, on which the main bridge 17 are fastened by means of screw 31. In the middle of the main bridge 17, the upper balance bearing 18 is arranged.

Figur 4 zeigt einen Schnitt durch das Tourbillonmodul 1 gemäss Figur 3 entlang der Schnittlinie BB. Die Plattform 2 des Tourbillons weist eine Plattformhauptachse 32 mit einer zentrischen Öffnung 34 auf. Die Plattformhauptachse 32 wird hier durch eine Plattformhülse 32 gebildet, die fest mit der Plattform 2 verbunden. Bei Bedarf können diese einstückig ausgebildet sein. Auf der Plattformhülse 32 ist der Innenring 24 des Hauptlagers 22 aufgesteckt und mit einem Sicherungsring 33 gesichert. Bei der gezeigten Ausführungsform ist die Verbindung zwischen dem Innenring 24 und der Plattformhülse 32 lösbar, so dass eine einfache Montage/Demontage möglich ist. Bei bestimmten Ausführungsformen kann die Plattformhülse 32 auch den Innenring des Lagers bilden. Zwischen dem Innenring 24 und dem Aussenring 23 sind Kugeln 40 des Kugellagers ersichtlich. Der Aussenring 23 des Hauptlagers 22 ist in die Hauptöffnung 21 der Basisplatte 3 eingepresst FIG. 4 shows a section through the tourbillon module 1 according to FIG. 3 along the section line BB. The platform 2 of the tourbillon has a platform main axis 32 with a central opening 34. The main platform axis 32 is formed here by a platform sleeve 32, which is firmly connected to the platform 2. If necessary, these can be integrally formed. On the platform sleeve 32 is the inner ring 24 of the main bearing 22 plugged and secured with a locking ring 33. In the embodiment shown, the connection between the inner ring 24 and the platform sleeve 32 is detachable, so that a simple assembly / disassembly is possible. In certain embodiments, the platform sleeve 32 may also form the inner ring of the bearing. Between the inner ring 24 and the outer ring 23 balls 40 of the ball bearing can be seen. The outer ring 23 of the main bearing 22 is pressed into the main opening 21 of the base plate 3

Die Plattformhülse 32 weist eine durchgängige Öffnung 34 auf, in der die Unruhachse 19 angeordnet ist. Die Unruhachse 19 ist an ihrem in der Darstellung oben liegenden Ende durch ein oberes Unruhlager 18 und an ihrem unteren Ende in einem unteren Unruhlager 26 radial und axial gelagert, so dass sie um ihre Achse A frei drehbar ist Bei den Unruhlagern 18, 26 handelt es sich je um zwei Lagersteine, wovon der eine für die axiale und der andere für die radiale Lagerung zuständig sind. Das untere Unruhlager 26 ist ausserhalb der Plattform 2 auf der feststehenden Seite angeordnet und rotiert im Unterschied zum oberen Unruhlager 19 nicht mit der Plattform 2 mit. Es besteht bei der gezeigten Ausführungsform keine direkte Verbindung zwischen der Plattformhülse 32 und dem unteren Unruhlager 26. Das untere Unruhlager 26 ist in einer Unruhlagerbrückenöffnung 35 der Unruhlagerbrücke 25 angeordnet Die Unruhlagerbrücke 25 ist bei der gezeigten Ausführungsform in die zylindrische Hauptöffnung 21 eingepresst. Andere Befestigungsmittel sind möglich. Das obere Unruhlager 18 ist hier in eine Hauptbrückenöffnung 36 der Hauptbrücke 17 eingepresst, welche über drei Stützen 16 (zwei davon sichtbar) auf der Plattform 2 befestigt sind. Die Hauptbrücke 17 ist über Befestigungsschrauben 37 lösbar mit den Stützen 16 verschraubt Andere Befestigungsmittel sind möglich. Aufgrund der Anordnung der Unruhlager 18, 26 weist die Unruhachse 19 eine vergleichsweise maximale Länge auf. Dies wirkt sich positiv auf die Belastung die Unruhlager 18, 26 aus. Zudem werden die Lagerlasten des unteren Unruhlagers 26 nicht über das Hauptlager abgeleitet.The platform sleeve 32 has a continuous opening 34 in which the balance spring 19 is arranged. The balance spring 19 is mounted radially and axially at its upper end in the illustration by an upper balance bearing 18 and at its lower end in a lower balance bearing 26, so that it is freely rotatable about its axis A. The balance bearings 18, 26 are concerned depending on two jewels, one of which is responsible for the axial and the other for the radial bearing. The lower balance bearing 26 is arranged outside the platform 2 on the fixed side and, unlike the upper balance bearing 19, does not rotate with the platform 2. There is no direct connection between the platform sleeve 32 and the lower balance bearing 26 in the embodiment shown. The lower balance bearing 26 is arranged in a balance bearing bridge opening 35 of the balance bearing bridge 25. The balance bearing bridge 25 is pressed into the cylindrical main opening 21 in the illustrated embodiment. Other fasteners are possible. The upper balance bearing 18 is here pressed into a main bridge opening 36 of the main bridge 17, which are fastened on the platform 2 via three supports 16 (two of which are visible). The main bridge 17 is releasably screwed by means of fastening screws 37 with the supports 16 Other fastening means are possible. Due to the arrangement of the balance bearings 18, 26, the balance spring 19 has a comparatively maximum length. This has a positive effect on the load the balance bearings 18, 26. In addition, the bearing loads of the lower balance bearing 26 are not derived via the main bearing.

Auf der Unruhachse 19 ist die Unruh 9 angeordnet. Die Spiralfeder 10 ist im Bereich ihres inneren Endes 38 mit der Unruh 9 und im Bereich ihres äusseren Endes 39 mit einem Regelmechanismus 20, respektive der Plattform 2, wirkverbunden. Die Unruh 9 steht über einen Anker 12 mit einem Ankerrad 11 in Wirkverbindung. Das Ankerrad 11, sowie ein Ritzel 14 sind über eine Ankerradachse 13 miteinander starr verbunden und um diese drehbar gelagert. Die Ankerradachse 13 ist in zwei Ankerradlagern 41 gelagert Das Ritzel 14 greift in die Innenverzahnung des Zahnrades 15 ein. Wenn die Plattform 2 des Tourbillons und die darauf montierten Teile um die Achse A des Hauptlagers 22 rotieren, dreht sich das Ritzel 14 und mit ihm das Ankerrad 14 um seine Achse B und bewirkt so, dass die Unruh neu über den wirkverbundenen Anker 11 angetrieben, respektive gehemmt wird. Die Drehbewegung der Plattform 2 um die Achse A wird damit reguliert.On the balance shaft 19, the balance 9 is arranged. The coil spring 10 is in the region of its inner end 38 with the balance 9 and in the region of its outer end 39 with a control mechanism 20, and the platform 2, operatively connected. The balance 9 is over an armature 12 with an escape wheel 11 in operative connection. The escape wheel 11, and a pinion 14 are rigidly connected to each other via an escape wheel axis 13 and mounted rotatably about this. The escape wheel axle 13 is mounted in two armature wheel bearings 41. The pinion 14 engages in the internal toothing of the toothed wheel 15. When the platform 2 of the tourbillon and the parts mounted thereon rotate about the axis A of the main bearing 22, the pinion 14 and with it the escape wheel 14 rotates about its axis B, thus causing the balance to be re-driven via the operatively connected armature 11, respectively inhibited. The rotational movement of the platform 2 about the axis A is thus regulated.

Bei der beschriebenen Ausführungsform ist das untere Unruhlager ausserhalb der Plattform angeordnet. Dadurch wird die im Tourbillon rotierende Masse verringert, was sich positiv auf die Präzision und die Ganggenauigkeit auswirkt.In the described embodiment, the lower balance bearing is arranged outside the platform. This reduces the mass rotating in the tourbillon, which has a positive effect on precision and accuracy.

Claims (4)

  1. Tourbillon (1) with a base plate (3), a main bearing (22) and a platform (2) with a platform main axis (32), wherein an inner ring (24) of the main bearing (22) is connected with the platform main axis (32) of the tourbillon (1) and an outer ring (23) of the main bearing (22) is connected with the base plate (3) of the tourbillon, and wherein an upper balance bearing (18) is connected with the platform (2) and the platform main axis (32) has an opening (34) in which a balance axis (19) is arranged, characterized in that a lower balance bearing (26) is connected with the base plate (3).
  2. Tourbillon (1) as claimed in claim 1, characterized in that the main bearing (22) is a ball bearing (22).
  3. Tourbillon (1) as claimed in claim 1 or 2, characterized in that the platform main axis is formed by a platform sleeve (32).
  4. The tourbillon module (1) with a tourbillon as claimed in any one of the foregoing claims.
EP04716191A 2003-03-03 2004-03-02 Tourbillon Expired - Lifetime EP1611488B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3202003 2003-03-03
PCT/CH2004/000116 WO2004079459A2 (en) 2003-03-03 2004-03-02 Tourbillon

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EP1611488A2 EP1611488A2 (en) 2006-01-04
EP1611488B1 true EP1611488B1 (en) 2009-07-15

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ATE421719T1 (en) * 2004-07-13 2009-02-15 Montres Breguet Sa LOCKING DEVICE FOR THE HAND ADJUSTMENT OF A WATCH WITH A TOURBILLON
US7857501B2 (en) 2005-09-23 2010-12-28 Salathe Willy Oblique tourbillon
ATE545071T1 (en) * 2009-03-23 2012-02-15 Montres Breguet Sa MOVEMENT WITH TOURBILLON EQUIPPED WITH A SHOCKPROOF PROTECTION DEVICE
CH700862A1 (en) * 2009-04-29 2010-10-29 Richemont Int Sa Tourbillon without the weight of the pendulum.
JP1583897S (en) * 2016-11-18 2017-08-14
AU201713821S (en) * 2017-01-03 2017-07-17 Turlen Holding Sa Watch
JP1596377S (en) * 2017-05-05 2018-01-29
JP1606139S (en) * 2017-08-24 2018-06-04
JP1606142S (en) * 2017-08-24 2018-06-04
JP1619230S (en) * 2018-03-05 2018-11-26
CN112305894B (en) * 2020-10-28 2022-04-26 深圳市格雅表业有限公司 Tourbillon in mechanical clock movement
EP4194961A1 (en) * 2021-12-07 2023-06-14 H.K. Precision Technology Co. Ltd Regulator assembly, for timepiece movement, comprising a cage to be rotatably mounted on a ball bearing

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CH687795C1 (en) * 1994-05-07 2001-05-15 Omega Sa MECHANICAL WATCHMAKING PIECE WITH A TOURBILLON.
CH688298B5 (en) 1995-02-16 1998-01-30 Nat Electronics Consolidated L Piece of electrical horology, including wristwatch.
JP2797071B2 (en) * 1995-08-18 1998-09-17 セイコーインスツルメンツ株式会社 Mechanical clock with tool-by-mechanism
US6246251B1 (en) 1998-04-24 2001-06-12 International Rectifier Corp. Test process and apparatus for testing singulated semiconductor die
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EP1103871A1 (en) 1999-09-02 2001-05-30 Creaholic S.A. Mechanically regulated time indicator
CH691831A5 (en) * 2000-08-10 2001-10-31 Franck Muller Watchland S A Wrist or pocket watch able to take watch faces or dials of different thicknesses has a mechanism for adjusting the height of a time indicating hand so that it matches the thickness of the face
DE60236403D1 (en) * 2002-03-26 2010-07-01 Chopard Manufacture Sa tourbillon

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WO2004079459A2 (en) 2004-09-16
US20060181962A1 (en) 2006-08-17
US7188995B2 (en) 2007-03-13
WO2004079459A3 (en) 2004-11-18
EP1611488A2 (en) 2006-01-04
DE502004009754D1 (en) 2009-08-27

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