EP2221676B1 - Timepiece including a chronograph and a watch - Google Patents
Timepiece including a chronograph and a watch Download PDFInfo
- Publication number
- EP2221676B1 EP2221676B1 EP09153518A EP09153518A EP2221676B1 EP 2221676 B1 EP2221676 B1 EP 2221676B1 EP 09153518 A EP09153518 A EP 09153518A EP 09153518 A EP09153518 A EP 09153518A EP 2221676 B1 EP2221676 B1 EP 2221676B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- chronograph
- resonator
- barrel
- gear train
- 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
Links
- 241000282461 Canis lupus Species 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- G04B15/00—Escapements
-
- 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
- G04B15/00—Escapements
- G04B15/06—Free escapements
- G04B15/08—Lever escapements
-
- 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
-
- 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
- G04B17/063—Balance construction
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
- G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
- G04F7/08—Watches or clocks with stop devices, e.g. chronograph
- G04F7/0866—Special arrangements
Definitions
- the present invention relates to a timepiece comprising a chronograph whose hands are driven by a first train causing in turn a first resonator and a watch whose hands are driven by a second wheel independent of the first, this second train causing in turn a second resonator.
- the document EP1333345 proposes a device comprising a watch whose hourly indicators are driven by a first cylinder connected to a first wheel and a first regulating member, and an autonomous chronograph module whose indicators are driven by a second cylinder independent of the first, connected to a second wheel and a second regulating member.
- the device described above guarantees the independence of the two movements and therefore an undisturbed movement of the watch when the chronograph is in operation. This independence, however, comes at the cost of a complicated system including a double barrel.
- the present invention overcomes this state of affairs. Indeed, the timepiece that it offers, in addition that it obeys what is exposed in the first paragraph of this description is original in that the first and second wheels are driven from a single source of energy.
- Timepiece 1 of figures 1 and 2 is composed of a chronograph whose hands 2 and 3 are driven by a first wheel 4 causing in turn a first resonator 5.
- the chronograph taken here as an example is equipped with a second-hand needle 2 and a needle 3 equipping a retrograde minute counter.
- the needles 2 and 3 are driven by the first wheel 4 shown in figure 2 where the second-hand hand 2, not shown, is mounted on the second mobile 21 forming part of this first gear 4.
- the minute counter driving the retrograde hand 3 is not shown in the drawing, but is linked by a This first gear 4 in turn drives a first resonator 5 at the end of its travel.
- This resonator comprises a balance-spring 22 on the axis of which is fixed a plate 23 provided with a pin actuated by an anchor 24 cooperating with an escape wheel 25 driven by the last wheel 50 of the train 4.
- the timepiece figures 1 and 2 also includes a watch whose hands 6 and 7 are driven by a second wheel 8, independent of the first wheel 4, the second wheel 8 causing in turn a second resonator 9.
- the watch taken here as an example is equipped with a minute hand 6 and a hand of hour 7.
- the hands are driven by the second wheel 8 shown in FIG. figure 2 .
- Said needles are fitted in a known manner, but not shown on the figure 2 , on a center pinion 26, this pinion forming the first mobile of the second wheel 8.
- This second wheel 8 in turn drives a second resonator 9.
- This resonator comprises a balance spring 27 on the axis of which is fixed a plate 28 provided with an anchor actuated by an anchor 29 cooperating with an escape wheel 30 driven by the last wheel 31 of the wheel 8.
- figures 1 , 2 and 3 clearly show that the first and second wheels 4 and 8 are driven from a single energy source 10, which distinguishes the present invention from the device EP1333345 previously cited, where the chronograph and watch wheels are each driven by a source of energy.
- the energy source is a barrel 10 freely rotating around a shaft 11, this barrel 10 containing a mainspring 12 as clearly shown in FIG. figure 3 .
- the shaft 11 pivots between a plate 44 and a bridge 45.
- the barrel 10 usually carries a crown wheel 13 in direct contact with the center gear 26 departure of the second train 8 driving the watch mechanism. It is also conceivable to make this crown wheel 13 leave also the first gear train driving the chronograph mechanism in which case the main characteristic of the present invention would also be satisfied, namely to drive the first and second wheels 4 and 8 from a cylinder unique.
- the setting in function of the chronograph does not affect in any way the march of the watch because the wheel of the chronograph is not arranged in derivation of the wheel of the watch.
- This solution not described here in detail requires the use of a clutch disconnecting the barrel gear of the chronograph when the latter is at a standstill.
- the barrel 10 carries a crown wheel 13 in engagement with the second wheel 8.
- the first mobile of this second wheel is the center gear 26 on which are fitted a roadway 32 carrying the minute hand 6 and a wheel with barrel 33 carrying the hour hand 7.
- the barrel 10 contains the mainspring 12 and freely rotates around the shaft 11.
- a first set 14 (see also figure 4 ) composed of a ratchet 15 and a wolf wheel 16 is integral with the shaft 11 and is fixed by means of a screw 34.
- the armature ratchet 15 allows the winding of the spring 12 and is therefore linked to a winding mechanism which is not shown in the drawing.
- the barrel still carries a second set 17 (see also figure 5 )
- This second assembly rotates freely around the shaft 11 and has a driver ratchet 18 and at least one pawl 19 (here two pawls 19 are used) cooperating with the teeth 20 that present the wolf wheel 16.
- Springs 38 support the pawls 19 on the wolf wheel 16.
- the driver ratchet 18 is engaged with the first gear 4, in this case with the first mobile 37 of this first wheel comprising a pinion 35 and a wheel 36.
- the barrel spring 12 is raised by the crown 43 fitted to the winding mechanism.
- the first assembly 14 comprising the armature ratchet 15 and the wolf wheel 16 rotates counterclockwise.
- the second set 17 comprising the coach ratchet 18 and the pawls 19 is held stationary by a brake (not shown in the drawing) preventing the center wheel 40 belonging to the second mobile 21 to rotate.
- the pawls 19 jump on the teeth 20 of the wolf wheel 16 and no torque is imparted to the driver ratchet 18.
- the spring is armed so that the crown wheel 13 the barrel 10 rotates counterclockwise and drives the center pinion 26 of the watch clockwise and with it the hour and minute hands that are related thereto.
- the brake acting on the center wheel 40 of said chronograph is released.
- the wolf wheel 16 begins to rotate clockwise, that is to say in the opposite direction to the one she had when reassembling.
- the pawls 19 are caught by the toothing of the wolf-tooth wheel 16, which causes the driver ratchet 18 to turn clockwise and to drive the first wheel 4 of the chronograph.
- the second mobile 21 linked to the train 4 will also rotate in the clockwise direction by the interposition of the mobile 37 composed of the pinion 35 and the wheel 36.
- the chronograph may have a single push button for starting, stopping and resetting its second hand or two pushers as shown on the figure 1 where the right pusher 41 allows the start and stop of the needles 2 and 3 and where the left pusher 42 allows the reset of the same needles.
- the timepiece that has just been described comprises two resonators 5 and 9.
- the resonator 9 of the watch is dimensioned such that its balance 27 executes 18'000 vibrations per hour which leads to a display at 1/5 of a second.
- the resonator 5 of the chronograph can be sized such that its balance 22 executes 36,000 vibrations per hour which allows a display to 1/10 of a second for the chronograph second hand. So we can take advantage of the presence of two separate resonators to make oscillating the chronograph resonator at a frequency higher than the frequency of the resonator of the watch.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Abstract
Description
La présente invention est relative à une pièce d'horlogerie comprenant un chronographe dont les aiguilles sont entraînées par un premier rouage entraînant à son tour un premier résonateur et une montre dont les aiguilles sont entraînées par un second rouage indépendant du premier, ce second rouage entraînant à son tour un second résonateur.The present invention relates to a timepiece comprising a chronograph whose hands are driven by a first train causing in turn a first resonator and a watch whose hands are driven by a second wheel independent of the first, this second train causing in turn a second resonator.
Comme c'est généralement le cas dans une pièce d'horlogerie réunissant une montre et un chronographe le rouage entraînant le chronographe est placé en dérivation du rouage entraînant la montre, cette pièce d'horlogerie ne comportant qu'une seule source d'énergie et qu'un seul résonateur. Pour prendre un cas concret, cité dans l'ouvrage de
On comprendra que la façon de faire qui vient d'être sommairement décrite entraîne une instabilité de l'heure affichée par la montre lors du fonctionnement du chronographe cette instabilité étant provoquée par une perte de couple entraînant une diminution de l'énergie d'impulsion transmise au balancier-spiral. Ainsi la précision de marche de la montre est-elle affectée lors du fonctionnement du chronographe.It will be understood that the procedure just described briefly causes an instability of the time displayed by the watch during operation of the chronograph, this instability being caused by a loss of torque resulting in a reduction of the pulse energy transmitted. the balance-spring. Thus the accuracy of the watch is affected during operation of the chronograph.
Il a été proposé un remède pour s'affranchir des inconvénients cités ci-dessus. Le document
Le dispositif décrit ci-dessus garantit bien l'indépendance des deux mouvements et donc une marche non perturbée de la montre lorsque le chronographe est en fonction. Cette indépendance cependant se fait au prix d'un système compliqué faisant appel notamment à un double barillet.The device described above guarantees the independence of the two movements and therefore an undisturbed movement of the watch when the chronograph is in operation. This independence, however, comes at the cost of a complicated system including a double barrel.
La présente invention remédie à cet état de fait. En effet la pièce d'horlogerie qu'elle propose, en plus qu'elle obéit à ce qui est exposé au premier paragraphe de cette description est originale en ce que les premier et second rouages sont entraînés à partir d'une seule source d'énergie.The present invention overcomes this state of affairs. Indeed, the timepiece that it offers, in addition that it obeys what is exposed in the first paragraph of this description is original in that the first and second wheels are driven from a single source of energy.
L'invention, qui est définie par les revendications annexées, va être expliquée maintenant en détail ci-dessous par un mode d'exécution donné à titre d'exemple non limitatif, cette exécution étant illustrée par les dessins annexés dans lesquels :
- la
figure 1 est une vue générale en plan de la pièce d'horlogerie exécutée selon la présente invention, - la
figure 2 est une vue en perspective de la partie essentielle du mécanisme réalisé selon l'invention et incorporé dans la pièce d'horlogerie, - la
figure 3 est une coupe dans la source d'énergie alimentant la pièce d'horlogerie selon l'invention, cette source d'énergie étant en prise d'une part avec le rouage de la montre et d'autre part avec le rouage du chronographe, - la
figure 4 est une vue en perspective du rochet d'armage qui équipe la source d'énergie de l'invention, et - la
figure 5 est une vue en perspective du rochet d'entraînement du chronographe qui équipe la source d'énergie de l'invention.
- the
figure 1 is a general plan view of the timepiece executed according to the present invention, - the
figure 2 is a perspective view of the essential part of the mechanism produced according to the invention and incorporated in the timepiece, - the
figure 3 is a section in the energy source supplying the timepiece according to the invention, this source of energy being engaged on the one hand with the wheel of the watch and on the other hand with the wheel of the chronograph, - the
figure 4 is a perspective view of the armature ratchet which equips the energy source of the invention, and - the
figure 5 is a perspective view of the chronograph drive ratchet that equips the energy source of the invention.
La pièce d'horlogerie 1 des
La pièce d'horlogerie des
Selon la caractéristique principale de la présente invention, les
En particulier, dans la pièce d'horlogerie prise ici en exemple, la source d'énergie est un barillet 10 tournant librement autour d'un arbre 11, ce barillet 10 contenant un ressort moteur 12 comme le montre bien la
Le barillet 10 porte de façon habituelle une roue de couronne 13 en prise directe avec le pignon de centre 26 départ du second rouage 8 entraînant le mécanisme de la montre. On peut imaginer faire partir également de cette roue de couronne 13 le premier rouage entraînant le mécanisme du chronographe auquel cas la caractéristique principale de la présente invention serait également satisfaite, à savoir entraîner les premier et second rouages 4 et 8 à partir d'un barillet unique. Dans cette configuration en effet, la mise en fonction du chronographe n'affecte en rien la marche de la montre car le rouage du chronographe n'est pas disposé en dérivation du rouage de la montre. Cette solution non décrite ici dans le détail, nécessite l'utilisation d'un embrayage déconnectant du barillet le rouage du chronographe quand ce dernier se trouve à l'arrêt.The
On va décrire maintenant une solution originale permettant l'entraînement direct des premier et second rouages 4 et 8 par le barillet de construction particulièrement simple et qui évite l'utilisation de l'embrayage cité au paragraphe ci-dessus. On se référera pour cela plus particulièrement aux
Comme le montre la coupe de la
Le dispositif qui vient d'être décrit fonctionne de la façon suivante :The device that has just been described operates as follows:
On remonte le ressort 12 de barillet 10 par la couronne 43 équipant le mécanisme de remontoir. Le premier ensemble 14 comprenant le rochet d'armage 15 et la roue à dents de loup 16 tourne dans le sens antihoraire. Lors de cette opération le second ensemble 17 comprenant le rochet entraîneur 18 et les cliquets 19 est maintenu immobile par un frein (non représenté au dessin) empêchant la roue de centre 40 appartenant au mobile de seconde 21 de tourner. Les cliquets 19 sautent sur les dents 20 de la roue à dents de loup 16 et aucun couple n'est imparti au rochet entraîneur 18. Pendant l'opération de remontage et après cette opération le ressort est armé de sorte que la roue de couronne 13 du barillet 10 tourne dans le sens antihoraire et entraîne le pignon de centre 26 de la montre dans le sens horaire et avec lui les aiguilles d'heure et de minute qui lui sont liées.The
Lorsqu'on enclenche le chronographe on libère le frein agissant sur la roue de centre 40 dudit chronographe. Sous l'effet du ressort 12 de barillet 10, la roue à dents de loup 16 se met à tourner dans le sens horaire, c'est-à-dire dans le sens opposé à celui qu'elle avait lors du remontage. De ce fait les cliquets 19 sont pris par la denture de la roue à dents de loup 16 ce qui conduit le rochet entraîneur 18 à tourner dans le sens horaire et à entraîner le premier rouage 4 du chronographe. Le mobile de seconde 21 lié au rouage 4, va aussi tourner dans le sens horaire par l'interposition du mobile 37 composé du pignon 35 et de la roue 36.When the chronograph is engaged, the brake acting on the
Ainsi de la description qui vient d'être donnée, on a compris que les rouages 4 et 8 respectivement relatifs au chronographe et à la montre sont totalement indépendants l'un de l'autre et que la marche ou l'arrêt du chronographe n'a aucune influence sur la précision de marche de la montre. Tout au plus le fonctionnement du chronographe diminue-t-il la réserve de marche de la pièce d'horlogerie.Thus, from the description that has just been given, it has been understood that the
On s'est abstenu dans la description ci-dessus d'exposer comment se réalisent la mise en marche, l'arrêt et la remise à zéro des aiguilles du chronographe qui sont connus de l'homme du métier. En particulier on utilise couramment pour ces fonctions une roue à colonnes ou une came dont la description peut être lue dans l'ouvrage « Le Chronographe » cité dans le préambule de ce document. De même, le chronographe peut présenter un seul poussoir permettant le démarrage, l'arrêt et la remise à zéro de sa trotteuse ou deux poussoirs comme représentés sur la
La pièce d'horlogerie qui vient d'être décrite comporte deux résonateurs 5 et 9. Généralement le résonateur 9 de la montre est dimensionné de telle façon que son balancier 27 exécute 18'000 alternances à l'heure ce qui conduit à un affichage au 1/5 de seconde. Le résonateur 5 du chronographe peut être dimensionné de telle façon que son balancier 22 exécute 36'000 alternances à l'heure ce qui permet un affichage au 1/10 de seconde pour la trotteuse du chronographe. Ainsi on peut profiter de la présence des deux résonateurs distincts pour faire osciller le résonateur du chronographe à une fréquence plus élevée que la fréquence du résonateur de la montre.The timepiece that has just been described comprises two
Claims (4)
- Timepiece (1) including a chronograph, whose hands (2, 3) are driven by a first gear train (4), which in turn drives a first resonator (5), and a watch whose hands (6, 7) are driven by a second gear train (8) independent of the first gear train, wherein said second gear train in turn drives a second resonator (9), characterized in that the first (4) and second (8) gear trains are driven from a single energy source (10).
- Timepiece according to claim 1, characterized in that the energy source is a barrel (10) arranged to rotate freely about an arbour (11), wherein said barrel contains a mainspring (12).
- Timepiece according to claim 2, characterized in that the barrel (10) carries a crown wheel (13) meshed with the second gear train (8) and in that a first assembly (14) formed of a winding ratchet (15) and a wolf tooth wheel (10) is secured to the arbour (11) of the barrel (10), wherein a second assembly (17) is arranged between the first assembly (14) and the barrel (10), said second assembly (17) arranged to rotate freely about said arbour (11) and has a drive ratchet (18) meshed with the first gear train (4) and at least one click (19) hinged on said drive ratchet (18), and said click (19) cooperates with the teeth (20) of the wolf tooth wheel (16).
- Timepiece according to claim 1, characterized in that the first resonator (5) has a higher frequency than the frequency of the second resonator (9).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00274/09A CH700459A2 (en) | 2009-02-24 | 2009-02-24 | Timepiece, has chronograph comprising second and minute hands driven by gear train, and watch comprising minute and hour hands driven by another gear train, where gear trains are independent and driven using single energy source i.e. barrel |
EP09153518A EP2221676B1 (en) | 2009-02-24 | 2009-02-24 | Timepiece including a chronograph and a watch |
AT09153518T ATE517373T1 (en) | 2009-02-24 | 2009-02-24 | WATCH CONSISTING OF A CHRONOGRAPH AND A MOVEMENT |
CN2010101417818A CN101833279B (en) | 2009-02-24 | 2010-02-23 | Timepiece including a chronograph and a watch |
JP2010038424A JP5255008B2 (en) | 2009-02-24 | 2010-02-24 | Clock with chronograph and watch |
US12/711,399 US8328413B2 (en) | 2009-02-24 | 2010-02-24 | Timepiece comprising a chronograph and a watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09153518A EP2221676B1 (en) | 2009-02-24 | 2009-02-24 | Timepiece including a chronograph and a watch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2221676A1 EP2221676A1 (en) | 2010-08-25 |
EP2221676B1 true EP2221676B1 (en) | 2011-07-20 |
Family
ID=40912094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09153518A Active EP2221676B1 (en) | 2009-02-24 | 2009-02-24 | Timepiece including a chronograph and a watch |
Country Status (6)
Country | Link |
---|---|
US (1) | US8328413B2 (en) |
EP (1) | EP2221676B1 (en) |
JP (1) | JP5255008B2 (en) |
CN (1) | CN101833279B (en) |
AT (1) | ATE517373T1 (en) |
CH (1) | CH700459A2 (en) |
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EP2874020B1 (en) * | 2013-11-15 | 2016-10-26 | Rolex Sa | Regulating system for a clock movement |
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CH667771GA3 (en) * | 1986-05-29 | 1988-11-15 | ||
CH682034B5 (en) * | 1991-10-14 | 1994-01-14 | Eta S.A. Fabriques D'ebauches | Timepiece including a chronograph module adapted on a motor module. |
CH690524A5 (en) * | 1995-10-31 | 2000-09-29 | Rolex Montres | Piece chronograph mechanism watchmaking. |
JPH11183652A (en) * | 1997-12-22 | 1999-07-09 | Seiko Instruments Inc | Chronograph clock |
DE60225779T2 (en) | 2002-02-01 | 2009-06-18 | Tag Heuer S.A. | Device with movement and chronograph module |
CH694833A5 (en) * | 2003-10-31 | 2005-07-29 | Complitime Sa | Timepiece including two balances. |
WO2006099882A1 (en) * | 2005-03-23 | 2006-09-28 | Marblia Ltd | Timepiece movement |
DE602005021748D1 (en) * | 2005-03-30 | 2010-07-22 | Montres Breguet Sa | Watch with at least two regulating systems |
-
2009
- 2009-02-24 EP EP09153518A patent/EP2221676B1/en active Active
- 2009-02-24 CH CH00274/09A patent/CH700459A2/en not_active Application Discontinuation
- 2009-02-24 AT AT09153518T patent/ATE517373T1/en not_active IP Right Cessation
-
2010
- 2010-02-23 CN CN2010101417818A patent/CN101833279B/en not_active Expired - Fee Related
- 2010-02-24 JP JP2010038424A patent/JP5255008B2/en not_active Expired - Fee Related
- 2010-02-24 US US12/711,399 patent/US8328413B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20100214879A1 (en) | 2010-08-26 |
US8328413B2 (en) | 2012-12-11 |
JP2010197392A (en) | 2010-09-09 |
CN101833279B (en) | 2013-05-01 |
JP5255008B2 (en) | 2013-08-07 |
CN101833279A (en) | 2010-09-15 |
ATE517373T1 (en) | 2011-08-15 |
EP2221676A1 (en) | 2010-08-25 |
CH700459A2 (en) | 2010-08-31 |
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