EP1611488A2 - Tourbillon - Google Patents

Tourbillon

Info

Publication number
EP1611488A2
EP1611488A2 EP04716191A EP04716191A EP1611488A2 EP 1611488 A2 EP1611488 A2 EP 1611488A2 EP 04716191 A EP04716191 A EP 04716191A EP 04716191 A EP04716191 A EP 04716191A EP 1611488 A2 EP1611488 A2 EP 1611488A2
Authority
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.)
Granted
Application number
EP04716191A
Other languages
German (de)
English (en)
Other versions
EP1611488B1 (fr
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-License AG
Watch U License AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Watch-U-License AG, Watch U License AG filed Critical Watch-U-License AG
Publication of EP1611488A2 publication Critical patent/EP1611488A2/fr
Application granted granted Critical
Publication of EP1611488B1 publication Critical patent/EP1611488B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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, or a tourbillon module, according to the preamble of the independent claim.
  • Movements with a tourbillon are known from the prior art. As a rule, these have a complicated structure, which results in disadvantages in manufacture, adjustment and maintenance.
  • EP 0 681 227 discloses a tourbillon which is arranged in the middle of the clockwork and is mounted in front of a barrel.
  • the tourbillon has a main bearing that is used to store the entire bogie of the tourbillon and the parts mounted on it.
  • This structure is complex and expensive in terms of assembly and maintenance. In the event of a defect in particular, it is necessary to dismantle the entire movement in order 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 inner ring of the main bearing is connected on the one hand to the base of the tourbillon and on the other hand has a bearing inside the base of the tourbillon platform for storing the balance axis, a relatively large, complicated ball bearing is required, which also has to be specially manufactured. Since it is known that special ball bearings are very expensive to manufacture and can only be ordered in large numbers, this design has considerable disadvantages in terms of accuracy and cost-effective production. Another disadvantage is that due to the arrangement of the lower balance bearing, at the level of the tourbillon platform in the upper area of the inner ring of the bearing, the balance axis has only a comparatively minimal length, which has a negative effect on the mechanical stability and the bearing forces.
  • a flying tourbillon with a main bearing is known from WO01 / 1861 1.
  • This tourbillon has a simple, modular structure and is characterized by its high accuracy.
  • the lower bearing of the balance axle is arranged inside a sleeve in the lower area, which is firmly connected to the bogie.
  • the lower bearing of the balance axle is located essentially at the level of the main bearing of the tourbillon.
  • the object of the invention disclosed here is to further develop the tourbillon known from WO01 / 1861 1 in such a way that it has a further improved, position-optimized accuracy. Another task is to show a tourbillon which has improved robustness and a construction and maintenance-friendly structure.
  • the tourbillon according to the invention preferably has a modular structure 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 clockwork and so that it can be inserted into or removed from the front or back in a simple manner without having to disassemble the entire clockwork.
  • the tourbillon has a platform which is supported on one side (flying tourbillon) and on which the rotating components of the tourbillon, in particular the 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.
  • a standardized standard ball bearing is preferably used for the storage of the tourbillon platform, which means that costly special designs can be dispensed with.
  • the platform of the tourbillon has a main bearing axis, which is connected, preferably detachably, to an inner ring of the ball bearing.
  • the outer ring of the main bearing is connected to a base plate, which is used to fasten the tourbillon in a clockwork.
  • the inner and / or the outer ring of the main bearing are preferably constructed so that the bearing play can be easily adjusted.
  • the tourbillon constructions known from the prior art generally have the disadvantage that it is not possible to adjust and maintain the tourbillon in the installed state. If such a tourbillon is to be serviced, the entire movement must be dismantled for this purpose.
  • the invention disclosed here makes it possible to avoid this disadvantage.
  • the tourbillon disclosed here has a preferably modular structure, which enables the tourbillon to be partially or completely detached from the rest of the movement. It is also possible to arrange the tourbillon bearings in such a way that they are accessible for maintenance purposes without having to disassemble the entire tourbillon or the movement. One possibility is to arrange the tourbillon so that it is visible from the front of the clockwork and maintainable from the back of the clockwork.
  • the tourbillon, or rather the tourbillon module is preferably arranged in an opening in the circuit board of the clockwork which extends over the entire depth, ie is continuous.
  • the tourbillon or the tourbillon module, is inserted from the front or rear into a non-continuous opening, or can be easily removed from it due to the modular structure.
  • the platform of the tourbillon preferably has external teeth for engaging a gear train and is preferably the part with the largest th diameter, ie determining the diameter of the opening in the circuit board of the clockwork.
  • 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 axis is fixed.
  • the length of the balance axis is thereby increased compared to a rotating bearing, which has a positive effect on stability and robustness, or enables differently sized bearings to be used.
  • Both the main bearing and the lower bearing of the balance are, in particular opposite one another, preferably arranged so that they are easily accessible for maintenance and inspection purposes.
  • the lower bearing of the balance and the main bearing of the platform of the tourbillon are preferably arranged essentially coaxially, since mechanical shocks and vibrations are thereby derived. By arranging the lower balance bearing on a lower level, shock loads and vibrations are better absorbed. Finished bearings are preferably attached by pressing, screwing, clamping or gluing and, if necessary, secured with a suitable securing device.
  • FIG. 1 shows a tourbillon module in a perspective view
  • FIG. 2 shows the tourbillon module according to FIG. 1 in a rear view
  • FIG. 3 shows the tourbillon module in FIG. 1 in a top view
  • FIG. 4 shows a section through the tourbillon module according to FIG. 3.
  • Figure 1 shows a tourbillon in a perspective view.
  • the design of the tourbillon is a flying tourbillon that is supported on one side.
  • the tourbillon is designed as a tourbillon module 1, which, if necessary, is manufactured independently of the rest of the movement, adjusted if necessary and then installed.
  • 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, or the movement of the clockwork is regulated.
  • a balance 9, which is operatively connected to a spiral spring 10, is arranged on the platform 2 coaxially to the axis A.
  • the balance 9 is operatively connected to an escape wheel 11 and an anchor 12 (only partially visible).
  • the escape wheel 11 is attached to an escape wheel axis 13 (see FIG. 4).
  • a pinion 14 is arranged on the escape wheel axis 13, which meshes with a fixed gear wheel 15 centered on the axis A (cf. FIG. 2, resp. FIG. 4), which is fastened 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, an upper balance bearing 18 can be seen, which is used to support an balance axis 19 (see FIG. 4) on which the balance 9 is attached.
  • a control mechanism 20 is used for fine adjustment of the accuracy.
  • FIG. 2 shows the tourbillon module 1 from 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 of which is attached 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 arranged in front of the main bearing 22, ie normally on the side facing away 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 and rotates with the platform 2, the lower balance bearing 26 is fixed and does not perform any rotational movement.
  • the balance bearing bridge 25, pronounced of a Maltese cross here, has four radial circumferential te recesses 27, which reveal the view of the main bearing 22 arranged behind. The main bearing 22 can be checked through this opening.
  • the balance bearing bridge 25 is pressed into the opening 21 here.
  • the pinion 14 fastened on an escape wheel axis 13 meshes with the gear wheel 1 5 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 fastening openings 30, which are used to fasten the tourbillon module 1 in a clockwork (not shown in more detail).
  • two fastening screws 29 are arranged, which serve to fasten the gear 15 on the base plate 3.
  • FIG. 3 shows a top view of the tourbillon 1.
  • the balance 9, which is essentially coaxial to the axis A, can be seen on the platform 2.
  • the spiral spring 10 is operatively connected at its inner end to the balance 9 and at its outer end to the main bridge 17 or the control mechanism 20.
  • the balance 9 is in operative connection with the escape wheel 11 and the anchor 12, which is arranged rotatably about an anchor axis 31.
  • Both the escape wheel axle 13 and the escape wheel axle 30 are supported in bearings which are operatively connected to the platform 2 and the main bridge 17, respectively.
  • the three supports 16 are arranged on the platform 2, on which the main bridge 17 are fastened by means of screw connections 31. In the middle of the main bridge 17, 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 main platform axis 32 with a central opening 34.
  • the platform hau ptachse 32 is formed here by a platform sleeve 32 which is fixed to the platform 2. If necessary, these can be formed in one piece.
  • the inner ring 24 of the main bearing gers 22 plugged in and secured with a locking ring 33. In the embodiment shown, the connection between the inner ring 24 and the platform sleeve 32 can be released, so that simple assembly / disassembly is possible.
  • the platform sleeve 32 can also form the inner ring of the bearing.
  • Balls 40 of the ball bearing can be seen between the inner ring 24 and the outer ring 23.
  • 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 axis 19 is arranged.
  • the balance axis 19 is supported radially and axially at its end lying at the top in the illustration by an upper balance bearing 18 and at its lower end in a lower balance bearing 26, so that it can be freely rotated about its axis A.
  • the balance bearings 18, 26 are each two bearing stones, 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. In the embodiment shown, there is no direct connection between the platform sleeve 32 and the lower balance bearing 26.
  • 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.
  • the upper balance bearing 18 is here pressed into a main bridge opening 36 of the main bridge 17, which are fastened to the platform 2 via three supports 16 (two of which are visible).
  • the main bridge 17 is detachably screwed to the supports 16 by means of fastening screws 37.
  • Other fasteners are possible.
  • Due to the arrangement of the balance bearings 18, 26, the balance axis 19 has a comparatively maximum length. This has a positive effect on the load on the balance bearings 18, 26.
  • the bearing loads of the lower balance bearing 26 are not derived via the main bearing.
  • the balance 9 is arranged on the balance axis 19.
  • the spiral spring 10 is operatively connected to the balance 9 in the region of its inner end 38 and to a control mechanism 20 or the platform 2 in the region of its outer end 39.
  • the balance 9 is over an anchor 12 with an escape wheel 1 1 in operative connection.
  • the escape wheel 1 1 and a pinion 14 are rigidly connected to one another via an escape wheel axis 13 and are mounted rotatably about the latter.
  • the armature wheel axle 13 is supported in two armature wheel bearings 41.
  • the pinion 14 engages in the internal toothing of the gear 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 the precision and accuracy.

Landscapes

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

Abstract

L'invention concerne un tourbillon (1) pourvu d'un palier principal (22). Un premier palier (18) de l'axe de balancier (19) tourne avec la cage (2) du tourbillon (1) et un deuxième palier (26) de l'axe de balancier (19) est placé de manière fixe.
EP04716191A 2003-03-03 2004-03-02 Tourbillon Expired - Lifetime EP1611488B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
EP1611488A2 true EP1611488A2 (fr) 2006-01-04
EP1611488B1 EP1611488B1 (fr) 2009-07-15

Family

ID=32932298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04716191A Expired - Lifetime EP1611488B1 (fr) 2003-03-03 2004-03-02 Tourbillon

Country Status (4)

Country Link
US (1) US7188995B2 (fr)
EP (1) EP1611488B1 (fr)
DE (1) DE502004009754D1 (fr)
WO (1) WO2004079459A2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE421719T1 (de) * 2004-07-13 2009-02-15 Montres Breguet Sa Arretiervorrichtung bei der zeigerstellung einer uhr mit einem tourbillon
US7857501B2 (en) 2005-09-23 2010-12-28 Salathe Willy Oblique tourbillon
EP2233988B1 (fr) * 2009-03-23 2012-02-08 Montres Breguet SA Mouvement horloger à tourbillon muni d'un dispositif de protection contre les chocs
CH700862A1 (fr) * 2009-04-29 2010-10-29 Richemont Int Sa Tourbillon sans le poids du balancier.
JP1583897S (fr) * 2016-11-18 2017-08-14
AU201713821S (en) * 2017-01-03 2017-07-17 Turlen Holding Sa Watch
JP1596377S (fr) * 2017-05-05 2018-01-29
JP1606142S (fr) * 2017-08-24 2018-06-04
JP1606139S (fr) * 2017-08-24 2018-06-04
JP1619230S (fr) * 2018-03-05 2018-11-26
CN112305894B (zh) * 2020-10-28 2022-04-26 深圳市格雅表业有限公司 一种机械钟表机芯中的陀飞轮
EP4194961A1 (fr) * 2021-12-07 2023-06-14 H.K. Precision Technology Co. Ltd Ensemble reglant, pour mouvement horloger, comportant une cage destinee a etre montee rotative par un roulement de cage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH687795C1 (fr) * 1994-05-07 2001-05-15 Omega Sa Piece d'horlogerie mecanique pourvue d'un tourbillon.
CH688298B5 (fr) 1995-02-16 1998-01-30 Nat Electronics Consolidated L Pièce d'horlogerie électrique, notamment montre-bracelet.
JP2797071B2 (ja) * 1995-08-18 1998-09-17 セイコーインスツルメンツ株式会社 ツールビョン機構を備えた機械時計
CH694831A9 (de) 1998-04-24 2005-10-14 Int Rectifier Corp Vorrichtung zur Pruefung vereinzelter Halbleiterchips.
EP0973076B1 (fr) * 1998-07-16 2008-02-13 ETA SA Manufacture Horlogère Suisse Montre à tourbillon
EP1103871A1 (fr) * 1999-09-02 2001-05-30 Creaholic S.A. Indicateur de temps à régulation mécanique
CH691831A5 (fr) * 2000-08-10 2001-10-31 Franck Muller Watchland S A Pièce d'horlogerie à tourbillon.
DE60236403D1 (de) * 2002-03-26 2010-07-01 Chopard Manufacture Sa Tourbillonmechanismus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004079459A3 *

Also Published As

Publication number Publication date
EP1611488B1 (fr) 2009-07-15
WO2004079459A2 (fr) 2004-09-16
WO2004079459A3 (fr) 2004-11-18
US7188995B2 (en) 2007-03-13
DE502004009754D1 (de) 2009-08-27
US20060181962A1 (en) 2006-08-17

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