EP2407832B1 - Uhrwerk einer Uhr - Google Patents

Uhrwerk einer Uhr Download PDF

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Publication number
EP2407832B1
EP2407832B1 EP10007383.2A EP10007383A EP2407832B1 EP 2407832 B1 EP2407832 B1 EP 2407832B1 EP 10007383 A EP10007383 A EP 10007383A EP 2407832 B1 EP2407832 B1 EP 2407832B1
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EP
European Patent Office
Prior art keywords
axis
cage
wheel
shaft
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10007383.2A
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English (en)
French (fr)
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EP2407832A1 (de
Inventor
Michel Capt
Jean-Claude Meylan
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.)
Richemont International SA
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Richemont International SA
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Publication date
Application filed by Richemont International SA filed Critical Richemont International SA
Priority to EP10007383.2A priority Critical patent/EP2407832B1/de
Publication of EP2407832A1 publication Critical patent/EP2407832A1/de
Application granted granted Critical
Publication of EP2407832B1 publication Critical patent/EP2407832B1/de
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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
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/066—Manufacture of the spiral spring

Definitions

  • the present invention relates to a timepiece movement comprising a rotating regulating system, in particular of the carousel type, capable of compensating the effects of gravitation on the gait of the movement and of exhibiting an original and attractive visual effect.
  • the rotating control systems known as the vortex or the carousel have in common to compensate for the effects of gravitation on the gait of movement but they differ in the way they perform this function.
  • the movement described in the patent CH 7965 comprises a finishing gear comprising in particular a mobile of average and a mobile of second.
  • the Bonniksen movement still has an escapement and a pendulum mounted in a cage that pivots between a bridge and the stage of the movement.
  • the exhaust is driven by the seconds wheel of the second mobile in the traditional way.
  • the lower pivot of the cage is shaped so that the cage and the seconds wheel rotate around the same axis.
  • the cage is rotated by means of a cage wheel integral and concentric with said cage and engaged with the average gear wheel of the average wheel.
  • the patent EP 1 419 419 describes a vortex in which an exhaust-carrying cage is rotatably mounted around an axis BB forming an angle ⁇ (0 ° ⁇ ⁇ 90 °) with respect to the axis of rotation of the wheels of the finishing train.
  • the exhaust-carrying cage has a cage gear coaxial with the axis BB which meshes with a mobile mounted on the frame.
  • the balance spring and the escapement are pivoted on the exhaust-carrying cage along axes parallel to each other and relative to the axis BB of this cage.
  • the exhaust gear is engaged with a toothing mounted on the frame and located in a plane perpendicular to the axis BB of rotation of the exhaust-carrying cage.
  • This toothing is mounted on the frame so that it is integral with the frame or that it is part of the base of a large cage pivoted on the frame about an axis AA.
  • this axis AA forms an angle different from 90 ° with the axis BB of rotation of the exhaust-carrying cage so that the axis BB scans the envelope of a cone of axis AA.
  • the axis AA of rotation of the large cage is parallel to the axes of the moving wheels of the finishing train.
  • This tourbillon is to significantly reduce the differences between the horizontal and vertical positions by moving the balance and the escapement in a three-dimensional space, without having to reduce the diameter of the balance, and while limiting the increase in the thickness of the movement.
  • the object of the present invention is to provide a timepiece movement comprising a tourbillon or carousel mechanism with two axes of rotation with an angle ⁇ between the two axes to bring to the balance a gyroscopic effect or "spinning" more important than in the prior art.
  • This goal is obtained by moving the intersection of the two axes A-A and B-B so that it is outside the area of the exhaust-carrying cage.
  • the present invention thus relates to a timepiece movement comprising a barrel, a work train, an escapement, a regulating member, said escapement and said regulating member being mounted in a pivoting cage driven in rotation around a first axis, the cage being mounted on a shaft on which is also mounted, integral with the latter, an intermediate wheel coaxial with the cage and free to rotate relative to said cage, the intermediate wheel being engaged with the pinion of the exhaust , the shaft being rotated about a second axis forming a non-zero angle with the first axis, characterized in that the intersection of the second axis and the first axis is located outside the cage.
  • the timepiece movement according to this first embodiment comprises a barrel (not shown) resulting in a traditional type of finishing train of which only the seconds mobile is illustrated in the figures.
  • said movable seconds has a pinion of second 1a and a second wheel 1b visible on the figures 1 and 2 .
  • the second wheel 1b drives two separate gear trains or kinematic chains: a first wheel, said exhaust train, for driving an exhaust and a second wheel, said cage gear, for driving in rotation about its axis the cage 30 a carousel 3, said cage carrying the escapement and a regulating member formed of a balance 4 and a hairspring 6.
  • the escapement is an anchor escapement including an exhaust pinion 2a and an escape wheel 2b cooperating traditionally with an anchor 5 also mounted on the cage 30 of the carousel 3.
  • the hairspring 6 it is in the illustrated embodiment of a cylindrical hairspring. It is obvious that the exhaust 2a, 2b, 5 could be of a completely different type known to those skilled in the art and that the cylindrical hairspring 6 could be replaced by another type of hairspring, such as a flat hairspring, a hairspring Breguet etc.
  • the cage 30 of the carousel 3 consists of a lower portion 31 and an upper portion 32 rigidly interconnected by pillars 33, for example three in number.
  • the escape mobile 2a, 2b is pivoted between two bearings carried by the lower part 31 of the cage 30 and the other by an exhaust bridge fixed on this lower part 31.
  • the balance 4 it is pivoted between two bearings arranged one on the lower part 31 and the other on the upper part 32 of the cage 30 and its axis coincides with the axis of the cage 30.
  • the axis of the balance 4 can be non-collinear and even non-parallel to the axis of the cage.
  • the second wheel 1b is engaged with a pinion 20 screwed integrally to a first end 21 of a shaft 22.
  • the shaft can have various shapes and is not necessarily cylindrical or symmetrical.
  • the shaft 22 and the pinion 20 pivot in a bridge 7 (or the plate) of the movement about an axis AA.
  • the shaft 22 and the pinion 20 pivot in said bridge 7 by means of a first ball bearing 40.
  • the inner ring 41 of the first ball bearing 40 is secured to the rotating assembly.
  • shaft 22 and pinion 20 while the outer ring 42 of said first ball bearing 40 is mounted integral with the bridge 7.
  • the shaft 22 is bent and has a first portion 23 centered on the axis AA and substantially perpendicular to the plane of the bridge 7 and, more generally, movement and a second portion 24 of axis BB forming a non-zero angle with the first portion 23.
  • this angle is 20 ° in the embodiment illustrated in FIGS. figures 1 and 2 .
  • a sleeve 26 on which is mounted an intermediate wheel 27.
  • the shaft 22 carries the cage 30 of the carousel 3 in a flying manner so that the axis of the cage 30 and the balance 4 coincides with the axis BB of the second portion 24 of the shaft 22.
  • the cage 30 being carried by the shaft 22, it is thus rotated with said shaft 22 about the axis AA.
  • a second ball bearing 44 allows the cage 30 to rotate relative to the shaft 22.
  • the inner ring 43 of the second ball bearing 44 is integral with the sleeve 26 mounted on the second portion 24 of the shaft 22 while the outer ring 45 of the second ball bearing 44 is mounted integral with an upper cage drive wheel 38 which is in turn integral with the lower portion 31 of the cage 30. In fact, this wheel 38 is part of the cage 30.
  • the intermediate wheel 27 is engaged with the exhaust pinion 2a, as illustrated in FIG. figure 2 . So the second wheel 1b driving the escape wheel 2a, 2b via the exhaust train described above and comprising the pinion 20, the shaft 22, the intermediate wheel 27 and the exhaust pinion 2a.
  • a support 50 is driven on the first portion 23 of axis AA of the shaft 22.
  • the support 50 could also be driven on the second portion 24 or an intermediate portion forming an angle different from the portions 23 or 24 of the shaft 22
  • the shaft 22 and its support 50 can be formed in one piece.
  • the longitudinal axis of said support 50 is substantially perpendicular to the axis AA of the first portion 23 of the shaft 22.
  • a first satellite 51 and a second satellite 52 are pivoted on the support 50 coaxially to the longitudinal axis of said support 50.
  • the first satellite 51 has a conical toothing and meshes on the one hand with a conical gear lower drive wheel 37 fixed on the bridge 7 coaxially with the shaft 22 by means of screws (not shown) for example.
  • the second satellite 52 is composed of a satellite pinion 52a and a satellite wheel 52b both having a conical or straight toothing to facilitate machining. Said satellite pinion 52a is engaged with the first satellite 51 while the satellite wheel 52b meshes with the upper cage drive wheel 38 having a conical and coaxial toothing and secured to the cage 30.
  • the first and second satellites 51, 52, the shaft 22, the lower cage drive wheel 37 and the cage drive upper wheel 38 form a differential gear, and the shaft 22 drives the cage 30 through the bias of this differential gear.
  • the second wheel 1b drives the carousel 3 with its cage 30 in rotation about its inclined axis BB through the cage gear comprising the shaft 22, the support 50, the first and the second satellite 51, 52 , the lower cage drive wheel 37 and the upper cage drive wheel 38.
  • the carousel 3 and its cage 30 thus pivot about their axis BB on the end 25 of the shaft 22 via the second bearing ball 44 already described.
  • the combination of the exhaust train and the cogwheel described above thus prints the carousel 3 a movement resembling that of a router.
  • the carousel 3 and the cage 30 rotate simultaneously about the axis BB, which is the axis of the cage 30, and the axis AA.
  • the intersection of these two axes lies outside the cage 30 as is visible on the figure 2 .
  • the movement thus created is on the one hand very elegant to observe and on the other hand allows the carousel and thus the balance to never stay in the same plane and to travel more positions than a traditional rotating regulating system.
  • the cage 30 is physically disengaged from the plate and the bridges of the movement (7), without direct connection with the latter.
  • Such clearance advantageously serves to move the intersection of the two axes AA and BB out of the cage 30 and consequently to create a more pronounced spinning effect in the trajectory of the elements (the exhaust and the regulator member) carried by the carousel .
  • the speed of the escape wheel 2b a function of the frequency of the balance and the number of teeth of said escape wheel, depends on the speed of rotation of the cage 30 about its axis BB given by the cage gear of the movement and the speed of rotation of the intermediate wheel 27 given by the escapement wheel of the movement.
  • NOT 2 b Z 27 ⁇ NOT 27 - NOT 30 / Z 2 at where N 2b is the speed of the escape wheel 2b, Z 27 is the number of teeth of the intermediate wheel 27, N 30 is the rotational speed of the cage 30 about the BB axis, N 27 is the speed of the intermediate wheel 27 and Z 2a is the number of teeth of the escape pinion 2a.
  • NOT 30 NOT 27 ⁇ 1 - Z 37 ⁇ Z 52 b / Z 51 ⁇ Z 38 , where N 30 is the rotational speed of the cage 30 about the axis BB, N 27 is the speed of the intermediate wheel 27, Z 37 is the number of teeth of the lower cage drive wheel 37, Z 52b is the number of teeth of the satellite wheel 52b, Z 51 is the number of teeth of the first satellite 51 and the satellite gear 52a, Z 38 is the number of teeth of the upper cage drive wheel 38.
  • the cage 30 is two revolutions per minute while the shaft 22 and the intermediate wheel 27 are four revolutions per minute.
  • Other speeds are of course conceivable, just follow the formulas above.
  • the figure 3 illustrates a variant of the first embodiment described above in which the longitudinal axis of the support 50 driven in the first portion 23 of axis AA of the shaft 22 is not perpendicular to said axis AA.
  • the axes of the first and second satellites 51, 52 are no longer perpendicular to the axis 22 and are no longer parallel to each other.
  • the other elements and the operation of this variant are in all respects similar to the first embodiment described above. In particular, the formulas above remain valid for this variant.
  • the timepiece movement according to the second embodiment comprises a barrel (not shown) resulting in a finishing gear of the traditional type comprising in particular a mobile seconds (not visible on the figure 4 ).
  • Said second mobile has a second gear and a seconds wheel in all respects similar to those designated by the references 1a and 1b on the figures 1 and 2 .
  • the second wheel (1b) drives two separate gear trains or kinematic chains: a first wheel, said exhaust train, for driving an exhaust and a second wheel, said cage gear, for to drive in rotation about its axis the cage 30 of a carousel 3, said cage carrying the exhaust (in all respects similar to that designated by the references 2a, 2b and 5 on the figures 1 and 2 ) and a regulating member formed of a balance 4 and a hairspring 6.
  • Said train comprises the pinion 20 engaged with the second wheel (1b), the shaft 22, the intermediate wheel 27 and the exhaust pinion 2a.
  • the second wheel (1b) drives the shaft 22 in rotation about the axis A-A and therefore, the cage 30 being carried by said shaft 22, it is also rotated about the axis 22.
  • the second wheel (1b) engaged with the pinion 20 of the shaft 22 is also engaged with the lower wheel of an intermediate mobile 34 with two superposed wheels.
  • the upper wheel of this mobile 34 meshes with the toothing 35 of a sleeve 36 coaxial with the first portion 23 of the shaft 22 and shaped so that said shaft 22 can freely rotate inside said sleeve 36.
  • the sleeve 36 pivots in the bridge 7 by means of a third ball bearing 46 whose inner ring 47 is integral with the sleeve 36 and the outer ring 48 is mounted integral with the bridge 7.
  • the lower cage drive wheel 37 ' is therefore not fixed with respect to the bridge 7.
  • a support 50 ' is driven into the first portion 23 of axis A-A of the shaft 22.
  • a satellite 53 is pivoted on the support 50' coaxially with the longitudinal axis of said support 50 '.
  • the satellite 53 meshes with the lower cage drive wheel 37 'and the upper cage drive wheel 38 coaxial and integral with the cage 30.
  • the satellite 53, the upper cage drive wheel 38 and the lower wheel Cage drive 37 ' form a differential gear, and the shaft 22 drives the cage 30 through this differential gear.
  • the second wheel (1b) drives the carousel 3 in rotation about its inclined axis BB through the cage gear comprising the intermediate mobile 34, the second sleeve 36, the lower cage drive wheel 37 ' , the satellite 53 and the upper cage drive wheel 38.
  • the carousel 3 and its cage 30 thus pivot about their axis BB on the end 25 of the shaft 22 via the second bearing 44 already described in FIG. relationship with the first embodiment.
  • the combination of the exhaust train and the cogwheel described above thus prints the carousel 3 a movement resembling that of a router.
  • the carousel 3 and the cage 30 rotate simultaneously about the axis BB, which is the axis of the cage 30, and the axis AA.
  • the intersection of these two axes is still outside the cage 30, and the movement thus created is on the one hand very elegant to observe and on the other hand allows the carousel and therefore the pendulum never to remain in the same plane and to travel more positions than a traditional rotating regulating system.
  • the shaft 22, the support 50 'and the satellite 53 of the cage train generates a physical clearance between the cage 30 and the plate / bridges (7) for producing a more pronounced spinning effect as in the first embodiment.
  • the shaft 22 could not be bent, but have at its free end 25 an inclined face carrying the sleeve 26 (of a shape modified accordingly) and the intermediate wheel 27 and allowing the pivoting of the cage 30.
  • a timepiece movement is thus realized comprising a rotating regulating system moving like a router, thus offering an aesthetic effect and good performance in order to compensate for the differences in travel due to gravitation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Gears, Cams (AREA)
  • Gear Transmission (AREA)

Claims (12)

  1. Uhrwerk einer Uhr, das ein Federhaus, ein Finissage-Räderwerk, eine Hemmung (2a, 2b, 5), ein Regulierorgan (4, 6) umfasst, wobei die Hemmung (2a, 2b, 5) und das Regulierorgan (4, 6) in einem schwenkbaren Rohwerk (30) montiert sind, das eingerichtet ist, um drehbar um eine erste Achse (B-B) angetrieben zu werden, wobei das Rohwerk auf einer Welle (22) montiert ist, auf der ebenfalls fest mit dieser verbunden ein Zwischenrad (27) montiert ist, das koaxial mit dem Rohwerk (30) und in Bezug zu dem Rohwerk (30) frei drehbar ist, wobei dieses Zwischenrad (27) mit dem Trieb (2a) der Hemmung in Eingriff ist, wobei die Welle (22) eingerichtet ist, um drehbar um eine zweite Achse (A-A) angetrieben zu werden, die mit der ersten Achse (B-B) einen Winkel ungleich Null bildet, dadurch gekennzeichnet, dass die Überschneidung der zweiten Achse (A-A) und der ersten Achse (B-B) sich außerhalb des Rohwerks (30) befindet.
  2. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass die Welle (22) eingerichtet ist, um das Rohwerk (30) über ein Differenzialgetriebe (37, 38, 51, 52; 37', 38, 53) anzutreiben.
  3. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Achse (A-A) im Wesentlichen senkrecht zur Ebene des Uhrwerks ist.
  4. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Winkel zwischen der ersten Achse (B-B) und der zweiten Achse (A-A) ungefähr 20° beträgt.
  5. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Welle (22) fest mit einem Antriebstrieb (20) verbunden ist, wobei die Welle (22) eingerichtet ist, um über ein Kugellager (40) in einem festen Element (7) des Uhrwerks zu schwenken.
  6. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Welle eine aufgebogene schwenkbare Welle (22) ist, die einen ersten Abschnitt (23), der als Achse die zweite Achse (A-A) aufweist, und einen zweiten Abschnitt (24) aufweist, der als Achse die erste Achse (B-B) aufweist.
  7. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Rohwerk (30) eingerichtet ist, um durch ein Räderwerk drehbar um die erste Achse (B-B) angetrieben zu werden, das ein erstes und ein zweites Rad (37, 38) und ein erstes und ein zweites Zwischendrehteil (51, 52) von entsprechenden Achsen aufweist, die nicht parallel zur zweiten Achse (A-A) sind und auf einer Stütze (50) montiert sind, die fest mit der Welle (22) verbunden ist, die selbst eingerichtet ist, um durch ein Drehteil (1a, 1b) des Finissage-Räderwerks drehbar um die zweite Achse (A-A) angetrieben zu werden, wobei das erste Rad (37) koaxial mit der zweiten Achse (A-A) ist und in Bezug zur Platine des Uhrwerks fest ist, wobei das zweite Rad (38) koaxial mit dem Rohwerk (30) und fest damit verbunden ist.
  8. Uhrwerk nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das erste Zwischendrehteil (51) mit dem ersten Rad (37) und dem zweiten Zwischendrehteil (52) in Eingriff ist, das selbst mit dem zweiten Rad (38) in Eingriff ist.
  9. Uhrwerk nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Rohwerk (30) eingerichtet ist, um durch ein Räderwerk drehbar um die erste Achse (B-B) angetrieben zu werden, das ein erstes Rad und ein zweites Rad (37', 38) und ein Zwischendrehteil (53) mit einer Achse umfasst, die nicht parallel zur zweiten Achse (A-A) ist und auf einer Stütze (50') montiert ist, die fest mit der Welle (22) verbunden ist, wobei das erste Rad (37') eingerichtet ist, um durch ein Drehteil (1a, 1b) des Finissage-Räderwerks drehbar um die zweite Achse (A-A) angetrieben zu werden, wobei das zweite Rad (38) koaxial und fest mit dem Rohwerk (30) verbunden ist und das Zwischendrehteil (53) mit jedem von dem ersten und dem zweiten Rad (37', 38) in Eingriff ist.
  10. Uhrwerk nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass das Drehteil des Finissage-Räderwerks ein Sekundendrehteil ist, das ein Sekundenrad (1b) und einen Sekundentrieb (1a) umfasst.
  11. Uhrwerk nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass das Rohwerk (30) eingerichtet ist, um auf der Welle (22) über ein Kugellager (44) zu schwenken, das einen inneren Ring (43), der fest mit einer Hülse (26) verbunden ist, der auf der Welle (22) montiert ist, und einen äußeren Ring (45) umfasst, der fest mit dem zweiten Rad (38) verbunden ist.
  12. Uhr, die ein Uhrwerk nach einem der Ansprüche 1 bis 11 umfasst.
EP10007383.2A 2010-07-16 2010-07-16 Uhrwerk einer Uhr Active EP2407832B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10007383.2A EP2407832B1 (de) 2010-07-16 2010-07-16 Uhrwerk einer Uhr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10007383.2A EP2407832B1 (de) 2010-07-16 2010-07-16 Uhrwerk einer Uhr

Publications (2)

Publication Number Publication Date
EP2407832A1 EP2407832A1 (de) 2012-01-18
EP2407832B1 true EP2407832B1 (de) 2018-09-05

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104849996B (zh) * 2014-02-14 2017-03-15 天津海鸥表业集团有限公司 一种陀飞轮倾斜于表盘面的传动机构
EP3671363B1 (de) * 2018-12-18 2022-06-29 TEC Ebauches SA Uhrwerk und uhr, die ein solches uhrwerk umfasst
CN111089574B (zh) * 2019-12-26 2023-11-10 江苏大发建设工程有限公司 带有输电装置且具有小角度工作范围的小型转子陀螺
CH718187A1 (fr) * 2020-12-17 2022-06-30 Mft Dhorlogerie Audemars Piguet Sa Tourbillon pour mouvement horloger.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002313572A1 (en) * 2001-08-20 2003-03-03 Complitime S.A. Clockwork movement and part
CH694833A5 (fr) * 2003-10-31 2005-07-29 Complitime Sa Pièce d'horlogerie comportant deux balanciers.
WO2007033513A2 (de) * 2005-09-23 2007-03-29 Watch-U-Licence Ag Schiefes tourbillon

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