EP2189855A1 - Tourbillon-Gehäuse und Tourbillon-Mechanismus, der ein solches Gehäuse umfasst - Google Patents

Tourbillon-Gehäuse und Tourbillon-Mechanismus, der ein solches Gehäuse umfasst Download PDF

Info

Publication number: EP2189855A1
Authority: EP; European Patent Office
Prior art keywords: cage; bridge; radius; axis; bridges
Prior art date: 2008-11-20
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

EP08169552A

Other languages

English (en)

French (fr)

Other versions

EP2189855B1 (de

Inventor

Franck-Charles-Cyril Orny

Michel Belot

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.)

Noriah SA

Original Assignee

Noriah SA

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.)

2008-11-20

Filing date

2008-11-20

Publication date

2010-05-26

2008-11-20 Application filed by Noriah SA filed Critical Noriah SA

2008-11-20 Priority to EP20080169552 priority Critical patent/EP2189855B1/de

2010-05-26 Publication of EP2189855A1 publication Critical patent/EP2189855A1/de

2012-11-14 Application granted granted Critical

2012-11-14 Publication of EP2189855B1 publication Critical patent/EP2189855B1/de

Status Not-in-force legal-status Critical Current

2028-11-20 Anticipated expiration legal-status Critical

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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 present invention relates to the field of watchmaking. It relates more particularly to a tourbillon cage comprising a lower bridge and an upper bridge, said lower and upper bridges comprising means for pivoting the cage along an axis AA, and being connected by connecting means, said cage being intended for receive a beam of radius R and an escape mechanism comprising an escape wheel and possibly an anchor.
the tourbillon is a rotating regulating system well known to those skilled in the art. It is known that, when the escapement of a mechanical watch is in a vertical position, the inevitable imbalances of the balance and spiral generated by the earth's gravitation cause gait deviations. The purpose of the vortex is to compensate for these variations by making the balance-sprung, in the case of a vortex with a single axis, all the vertical positions.
a vortex is usually composed of a rocker and an escapement mechanism that includes an escape wheel and, in the case of an anchor escapement, an anchor. These elements are mounted in a rotating cage suspended between two pivot points, which can be located on the plate and the bar bridge or on the cage bridge and the barrette bridge.
the cage functions as the second mobile. It carries, on its axis, a pinion of second and is driven by the average wheel.
Inside the cage the role of the exhaust is conventional. The force is transmitted from an exhaust pinion coaxial with the escape wheel, this pinion meshing, in the manner of a satellite, with a fixed second wheel, integral with the plate.
the axis of the balance must be perfectly coaxial with that of the cage.
This cage traditionally comprises at least one lower bridge and an upper bridge between which is mounted the balance.
the lower and upper decks are assembled by means of pillars arranged outside the beam of the beam so as not to interfere with its oscillations, generally according to an amplitude of 220 °.
An object of the present invention is therefore to overcome this disadvantage, by proposing a tourbillon cage and a tourbillon mechanism of original construction and to increase the energy available for the balance without impairing the accuracy of a movement comprising a such a tourbillon mechanism.
a vortex cage as described in the preamble, wherein at least one of said connecting means is disposed, with respect to the axis AA, at a lower distance. to the radius R of the pendulum.
the dimensions of the cage are reduced but without affecting the precision of the movement.
the cage being smaller, it requires less energy, and the energy available to power the pendulum is then increased, which increases its accuracy.
all the connecting means connecting the lower and upper bridges may be arranged relative to the axis AA at a distance less than the radius R of the beam.
the cage may be arranged to receive the balance so that the balance has an axis of rotation coaxial with the axis AA of the cage.
the upper bridge may comprise at least one connecting arm and the lower bridge may comprise at least one first connecting arm, said connecting arms being arranged facing one another to receive said connecting means. and having a length less than the radius R of the balance.
the upper bridge comprises a single link arm.
the cage may comprise an intermediate bridge interposed between the lower bridge and the upper bridge, said intermediate bridge comprising at least a first connecting arm, arranged to be traversed by at least one of the connecting means. connecting the upper and lower bridges, said first arm of the intermediate bridge having a length less than the radius R of the beam.
the lower and intermediate bridges may respectively comprise, facing one another, a second arm arranged to receive means for pivoting the escape wheel, said second arms having a length less than the radius R of the balance.
the lower and intermediate bridges may respectively comprise, facing one another, a third arm arranged to receive pivoting means of the anchor, said third arm having a length less than the radius R of the beam.
the connecting means of the lower and upper bridges can be pillars.
the invention also relates to a tourbillon mechanism comprising a cage as defined above, a beam of radius R and an escape mechanism comprising an escape wheel and possibly an anchor.
the rocker may have an axis of rotation coaxial with the axis AA of the cage.
the balance may comprise an annular serge of radius R and a single arm connecting the axis of the balance to the serge.
all the bridges of the cage comprise arms of shorter length than the radius R of the balance so that the cage fits inside the strut of the balance.
a vortex is a rotating regulating system, in which a rocker 1, associated with a spiral spring 2, and an escapement mechanism comprising an escape wheel 3, are mounted in a cage 4 pivoted on a fixed element of a watch movement.
the escapement also comprises an anchor 5, cooperating with the balance 1 and with the escape wheel 3 by pallets 6.
the rocker 1 comprises an annular serge 7, of inner radius R with respect to the axis 8 of the rocker 1.
the radius R is defined as being the closest distance between the inner face of the serge and the pivot axis AA of the cage 4.
the expression "the radius R of the balance” corresponds to these two definitions.
the balance 1 comprises a single arm 9 connecting the axis 8 of the balance 7 to the serge 7. This optimizes the inertia by reducing the influence of the arm.
the cage 4 comprises an upper bridge 10 and a lower bridge 12.
An intermediate bridge 14 is interposed between the upper bridge 10 and the lower bridge 12.
these bridges Preferably, these bridges have the same thickness. This embodiment is particularly effective for obtaining a rigid and precise assembly.
the upper bridge 10 comprises a single linkage arm 15, and the lower 12 and intermediate 14 bridges also comprise connecting arms 16 and 17 respectively, said linkage arms 15, 16 and 17 being arranged facing each other. from each other, and connected by two pillars 18, 19 arranged, with respect to the axis AA, at a distance less than the radius R of the balance 1. More specifically, the pillar 18 secures the connecting arms 15 and 16 of the upper and lower bridges 10 and 12, and the pillar 19 passes through the connecting arm 17 of the intermediate bridge 14 to secure the three arms In addition, the lower bridges 12 and intermediate 14 are secured by pillars 21. The pillars 18, 19 and 21 are fixed to the bridges by means of screws 20.
the lower bridges 12 and intermediate 14 respectively comprise, facing one another, a second arm 24 and 25 respectively, arranged to receive pivoting means 26 of the escape wheel 3 said second arms 24 and 25 having a length less than the radius R of the balance 1.
These pivoting means 26 may be stones or other types of bearings housed in the arms 24 and 25 of the bridges 12 and 14, and with which cooperate pivots which is provided with the wheel exhaust 3.
the lower bridges 12 and intermediate 14 respectively have, facing one another, a third arm 28 and 29 respectively, arranged to receive pivoting means 30 of the anchor 5, said third arms 28 and 29 having a length less than the radius R of the balance 1.
These pivoting means 30 may be stones or other types of bearings housed in the arms 28 and 29 of the bridges 12 and 14, and with which cooperate pivots which is provided with the anchor 5.
all the connecting arms 15, 16 and 17 have a length less than the radius R of the rocker 1, but also the other arms 24, 25, 28 and 29 of the lower bridges 12 and intermediate 14, so that the cage 4 and the exhaust are inscribed inside the serge 7 of the balance 1.
the lower bridges 12 and upper 10 each comprise pivots 32 of the cage directed towards the outside of the cage.
These pivots 32 are conventional and are intended to cooperate with stones housed in a frame that includes a movement in which the vortex takes place. They are arranged along the AA axis.
the rocker 1 carries a double-plate 34 provided with an ankle 35 for its operation in the exhaust. It is mounted between the upper and lower bridges 12, on an axis 8 passing through the intermediate bridge 14. The latter has an opening adapted to allow free passage of the axis 8 of the balance 1.
the balance spring is mounted on a first side intermediate bridge 14, for example between the upper bridge 10 and the intermediate bridge 14, while the double-plate 34 is mounted on the other side of the intermediate bridge 14, for example between the lower bridge 12 and the intermediate bridge 14.
the hairspring 2 is fixed to the axis 8 of the balance 1 via a ferrule 36 and to the upper bridge 10 via a pin 37 and a movable pin holder 38.
the balance can include weights or the upper deck can wear a racket.
an anti-shock device 40 is disposed at each end of the axis 8 of the balance spring.
the anti-shock devices 40 are arranged in the lower bridges 12 and upper 10.
an exhaust gear coaxial with the escape wheel 3 is intended to cooperate with a fixed wheel (not shown) integral with the frame of the movement.
the cage 4 is integral with a drive pinion 42 intended to be kinematically connected to the work train of the movement.
the gear dimensions and ratios of the escapement, of the fixed wheel with which the exhaust pinion meshes with the driving pinion 42 are determined so that the cage performs a revolution in one minute and thus pivots. like a second wheel.
a second hand 43 can be driven on the upper deck 10 of the cage 4 to indicate seconds. It is obvious that the cage can rotate at a different speed, without departing from the scope of the invention.
the construction of the tourbillon described above provides an extremely light and airy structure.
the pendulum can oscillate on a arc of 340 ° maximum but its arm must not touch the pillars or other connecting element to not disturb the isosynchrony. It is possible to provide in the movement, at the outlet of the barrel or before the vortex, a constant torque force control system making it possible to better regulate the amplitude of the balance at a value limited to approximately 340 ° constant.
the loss of precision due to the amplitude of the movement of the pendulum limited by the presence of the cage inside the balance is compensated by the low energy required to drive the cage, the energy available to drive the pendulum then being more important. As a result, the inertia or the speed of the balance can be increased so as to regain precision.
the inertia of the balance we increase the quality factor.
I T the inertia of the vortex decreases the losses. Compared to a vortex occupying the same volume, we will have more energy in the balance, and for the same energy available.
Example 1 relates to a small vortex
Example 2 relates to a large vortex
Example 3 a vortex according to the invention
the present invention facilitates balancing.
the pendulum being larger than the tourbillon cage, it is the balance of the pendulum which is the most influential. But balancing a pendulum is better controlled than that of a cage.
the cage is located inside the balance and being smaller, its center of gravity is close to the theoretical axis. Balancing is better and easier to achieve.
the connecting means may be different from the pillars used in the variant presented.
the connecting arms of the bridges can be provided in one piece, the material connecting the connecting arms constituting the connecting means. You can also have one piece folded.

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Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Micromachines (AREA)
Transmission Devices (AREA)

EP20080169552 2008-11-20 2008-11-20 Tourbillon-Mechanismus Not-in-force EP2189855B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP20080169552 EP2189855B1 (de)	2008-11-20	2008-11-20	Tourbillon-Mechanismus

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP20080169552 EP2189855B1 (de)	2008-11-20	2008-11-20	Tourbillon-Mechanismus

Publications (2)

Publication Number	Publication Date
EP2189855A1 true EP2189855A1 (de)	2010-05-26
EP2189855B1 EP2189855B1 (de)	2012-11-14

Family

ID=40626646

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20080169552 Not-in-force EP2189855B1 (de)	2008-11-20	2008-11-20	Tourbillon-Mechanismus

Country Status (1)

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EP (1)	EP2189855B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2879005A2 (de)	2013-12-02	2015-06-03	Noriah SA	Tourbillon- oder Karussellmechanismus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2004006025A2 (de) *	2002-07-09	2004-01-15	Watch-U-License Ag	Tourbillon

2008
- 2008-11-20 EP EP20080169552 patent/EP2189855B1/de not_active Not-in-force

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2004006025A2 (de) *	2002-07-09	2004-01-15	Watch-U-License Ag	Tourbillon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2879005A2 (de)	2013-12-02	2015-06-03	Noriah SA	Tourbillon- oder Karussellmechanismus
EP2879005A3 (de) *	2013-12-02	2016-05-18	Noriah SA	Tourbillon- oder Karussellmechanismus

Also Published As

Publication number	Publication date
EP2189855B1 (de)	2012-11-14

Publication	Publication Date	Title
EP2105806B1 (de)	2013-11-13	Hemmungsmechanismus
EP2132604B1 (de)	2011-06-15	Tourbillon-uhrwerk
EP2583142B1 (de)	2015-01-07	Mechanismus für den vorschub eines karussellkäfigs über regelmässige sprünge
WO2007006805A2 (fr)	2007-01-18	Piece d'horlogerie
EP2397920A1 (de)	2011-12-21	Mechanismus für springendes Tourbillon-Gestell oder Karussell-Gestell
WO2017102916A1 (fr)	2017-06-22	Mécanisme de réglage d'une vitesse moyenne dans un mouvement d'horlogerie et mouvement d'horlogerie
EP1772783B1 (de)	2010-06-16	Uhrwerk mit konstantkraftvorrichtung
CH708525B1 (fr)	2018-12-14	Mécanisme de stabilisation du fonctionnement du balancier-spiral, mouvement horloger et montre mécanique.
WO2011006617A1 (fr)	2011-01-20	Tourbillon a roue d'echappement fixe
EP2802942B1 (de)	2015-11-04	Uhr mit mehreren unruhen
EP2725433B1 (de)	2015-04-29	Bewegliches Tourbillon mit beweglicher Unruh für Uhrwerk
EP1918790B1 (de)	2010-09-01	Tourbillon für Uhrwerk und dieses enthaltende Uhrwerk
EP1615085A1 (de)	2006-01-11	Korrekturmechanismus von einem Teller einer Regulierungsvorrichtung für ein Uhruh-Spiralfeder
EP2189855B1 (de)	2012-11-14	Tourbillon-Mechanismus
EP3663868B1 (de)	2021-09-08	Uhrwerk, das ein tourbillon mit einem festen magnetischen rad umfasst
CH708960A2 (fr)	2015-06-15	Mécanisme de tourbillon ou de carrousel.
EP2761379B1 (de)	2015-11-18	Uhrwerk mit tourbillon
CH705120B1 (fr)	2012-12-31	Mécanisme de tourbillon.
WO2018215284A1 (fr)	2018-11-29	Dispositif de régulation pour pièce d'horlogerie avec oscillateur harmonique isotrope ayant des masses rotatives et une force de rappel commune
EP4016195B1 (de)	2023-07-26	Tourbillon für uhrwerk
CH702853A2 (fr)	2011-09-30	Mouvement horloger comprenant un tourbillon.
CH713837B1 (fr)	2022-04-29	Dispositif de régulation sur la base d'un oscillateur harmonique isotrope pour pièce d'horlogerie.
CH705384B1 (fr)	2013-02-28	Mécanisme de tourbillon.
CH716864B1 (fr)	2024-04-15	Tourbillon pour mouvement horloger.
CH715618A2 (fr)	2020-06-15	Mouvement d'horlogerie comportant un tourbillon avec une roue magnétique fixe.

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