EP3876042B1 - System for resetting a chronograph - Google Patents
System for resetting a chronograph Download PDFInfo
- Publication number
- EP3876042B1 EP3876042B1 EP20161120.9A EP20161120A EP3876042B1 EP 3876042 B1 EP3876042 B1 EP 3876042B1 EP 20161120 A EP20161120 A EP 20161120A EP 3876042 B1 EP3876042 B1 EP 3876042B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hammer
- chronograph
- flexible element
- wheel set
- resetting
- 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.)
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- 230000004913 activation Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 description 10
- 102100032392 Circadian-associated transcriptional repressor Human genes 0.000 description 8
- 101710130150 Circadian-associated transcriptional repressor Proteins 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 210000000056 organ Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Images
Classifications
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- 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
- G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
- G04F7/0819—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with triple hammer, i.e. one hammer acts on three counters
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- 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
- G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
- G04F7/0814—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms with double hammer, i.e. one hammer acts on two counters
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- 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
- G04F7/0804—Watches or clocks with stop devices, e.g. chronograph with reset mechanisms
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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
- G04B27/00—Mechanical devices for setting the time indicating means
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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
- G04B27/00—Mechanical devices for setting the time indicating means
- G04B27/001—Internal gear therefor, e.g. for setting the second hand or for setting several clockworks
Definitions
- the invention relates to a system for resetting a chronograph to zero.
- the system is provided with a chronograph counting train, which includes at least one minute counter having a minutes mobile, and a seconds counter, which includes a chrono mobile.
- the system comprises a hammer held blocked by a blocking means and movable from an inactive position, where the hammer is blocked by the blocking means, and an active position, when the hammer is unlocked, for resetting the chronograph in contact of different mobiles.
- a chronograph mechanism includes a chronograph counting train, which allows time to be counted from the second by means of a chronograph mobile or seconds counter, towards the minute by means of a minutes counter, and possibly towards the hour using an hour counter.
- Each counter includes an indicator member moving on a corresponding graduated scale.
- the indicator organs are traditionally indexed to an angular position corresponding to the zero of each graduated scale.
- each indicator member is generally carried by the axis of a corresponding element of the train.
- the connection between the element of the cog and its axis is friction to allow these two organs an independent angular movement, beyond a certain torque.
- the indicator organs are indexed by means of corresponding heart and hammer mechanisms.
- Friction connections and heart and hammer mechanisms mean that the torque to be provided when resetting the various counters can be significant, and significant energy is consumed.
- buckling For comparison, in a traditional chronograph timepiece, a so-called “buckling” device is often used. Such a device creates a hard point when pressing a push button and once the hard point has passed, by an inertia effect the reset function is carried out. It should be noted that the spring pressed and which has passed the hard point has a negative friction effect throughout its function for resetting, and significant energy is consumed.
- EP2884350 A2 discloses a system for resetting a chronograph to zero according to the preamble of appended claim 1.
- the invention therefore aims to overcome the disadvantages of the state of the art by providing a system for resetting a chronograph, in particular a timepiece.
- An objective of the invention is precisely to benefit from an accumulation of energy of a flexible element, such as an on-board spring, linked to a hammer to restore this energy at the time of unlocking the hammer for resetting the chronograph.
- the invention relates to a system for resetting a chronograph, which comprises the characteristics defined in independent claim 1.
- An advantage of the system for resetting a chronograph according to the invention lies in the fact that it comprises a flexible element fixed by a first end to an upper end of a hammer, and by a second end to a first portion a control rocker rotatably mounted on a base or a frame or a plate of the timepiece.
- an external activation member such as a push button
- the rocker is pressed on a second portion of the control rocker causing the rocker to rotate around its axis of rotation, and thus drive the second end of the flexible element, such as an on-board spring, with a certain force so that it stores energy during this operation.
- a chronograph comprises a hammer blocking means, which is preferably a hook member rotatably mounted on a base or frame or plate. the timepiece and blocking the hammer by a fixed pin mounted on the hammer when the hook at a first end hooks on the pin.
- a hammer blocking means which is preferably a hook member rotatably mounted on a base or frame or plate.
- the system makes it possible to store energy via the flexible element to perform a chronograph reset function, and also allows clear triggering without friction via the hook member. when unlocking the hammer to reset the chronograph.
- THE figures 1a and 1b represent a bottom view of the main elements of a system 1 for resetting a chronograph to a position before the resetting operation. It is normally also composed of a chronograph counting train 2 presented in more detail in the figures 4 and 5 described below. It can be envisaged to mount the reset system 1 in a timepiece comprising a basic time movement and a chronograph movement, which can be autonomous with its own movement, and therefore its own barrel. However, it can also be planned to use the basic movement of the timepiece with the chronograph.
- the reset system 1 includes a chrono mobile 3, which is normally the seconds mobile, which is part of the chronograph counting train 2 of the figures 4 and 5 .
- This chronograph counting train comprises in particular a minutes counter, which comprises a minute mobile 4, and a seconds counter, which comprises a chrono mobile 3.
- the chronograph counting train can also comprise an hour counter, which comprises a hours mobile 5.
- the chrono mobile or seconds 3 comprises a heart 13 mounted on the central axis 23 of the chrono mobile, this heart 13 constitutes a form of cam.
- the minute mobile 4 has a core 14 mounted on the central axis 24.
- the hour module 5 has a core 15 mounted on the central axis 25.
- a timepiece equipped with a chronograph usually includes chronograph mobiles, which are pivotally mounted with friction on a frame or plate of the timepiece. This means that when resetting the chronograph, it is possible to rotate with sufficient torque the mobiles held only by friction by their axis in an opening provided for this purpose, until the chronograph reset indication.
- the reset system 1 mainly comprises a flexible element 10, which may be an on-board spring, which is connected between a reset control means 12 and an end portion of the hammer 6, which is used for reset to zero of the chronograph.
- the flexible element 10 is configured in such a way as to store energy during a movement of the control means 12 and before unlocking the hammer 6 blocked by a blocking means 11 to be able at the time of unlocking the hammer 6 to restore this stored energy and drive the hammer 6 to reset the chronograph to zero.
- the flexible element 10 is linked by a first end 10a to the hammer 6, for example to an end part of the hammer 6 used for resetting the chronograph to zero.
- a pin 19 is inserted at the first end 10a of the flexible element 10 and is housed in an elongated opening 9 made at a flat upper end of the hammer 6.
- the second end 10b of the flexible element 10 is fixed to the control means 12, which is mounted on the base or the frame or the plate of the timepiece, and is used during the chronograph resetting operation.
- the flexible element 10, such as the on-board spring is of arcuate shape between its first end 10a and its second end 10b. This arcuate shape towards an external activation member B, such as a push button, which can act on the control means 12, can be adapted to improve the energy stored before resetting the chronograph to zero.
- the control means 12 is preferably a control rocker, for example planar, which is rotatably mounted preferably by a fixing element 22, which is rather a screw 22 passing through a central opening of the control rocker and which is fixedly screwed in a corresponding thread in the base or frame or plate of the part watchmaking.
- This control rocker 12, which is rotatably mounted around the axis defined by the screw 22, comprises a first portion of a first side of the axis, on which is fixed by studs 40 or other fixing means, the second end 10b of the flexible element 10.
- the control rocker 12 also comprises a second portion of a second side of the axis of rotation opposite the first side, and at one end of which a push button B can act to resetting the chronograph to zero.
- the hammer 6 in a blocking position, the hammer 6 is kept blocked by a blocking means 11.
- the push-button B presses the second portion of the rocker rotary control 12 and therefore acts first of all on the flexible element from its second end 10b to accumulate energy before the effective release of the hammer 6, which occurs by pressing the push button even further b.
- the hammer 6 is preferably a metal plate, and is mounted in translation with a first longitudinal opening 7 and a second longitudinal opening 8 in which fixed rods 17, 18 are placed, which are for example a first screw 17 and a second screw 18. These two screws 17, 18 can be screwed into threads provided for this purpose on a base or frame or plate of the timepiece not shown, but leaving the hammer free to move between an inactive blocking position and a active reset position.
- the two longitudinal openings 7, 8 are preferably of the same length and on the same line along the length of the hammer 6.
- the length of the longitudinal openings is adapted in such a way that the hammer 6 can occupy an inactive blocking position and an active position resetting the chronograph to zero in contact with the different hearts 13, 14 of the mobiles 3, 4 or even the heart 15 of the mobile 5 explained below.
- the locking means 11 of the hammer 6 is preferably a hook member 11 rotatably mounted on the hammer 6.
- the hook member 11 of planar shape comprises a central opening through which passes the second screw 18, the tapping of which is in the second longitudinal opening 8 of the hammer 6 defined as the upper side of the hammer 6, where the push button B acts.
- the hook member 11 comprises at a first end 11a, a hook to come hook on a pin 26 fixed vertically on the hammer 6 near the second longitudinal opening 8 and between the two longitudinal openings 7, 8 of the hammer 6.
- a second end of the return spring 31 can be fixed by a screw 51 screwed into a corresponding thread made in the base or the frame or the plate of the timepiece.
- an interior end 12' of the second portion of the rotary control lever 12 is placed opposite and distant from the second end 11b of the hook member 11.
- the flexible element 10 first stores energy by the rotation of the control rocker 12 following the pressure on the push-button B.
- the element flexible 10 stores energy already before the interior end 12' of the second portion of the control rocker 12 comes to push the second end 11b of the hook member 11, and this until the moment when the hook of the first end 11a of the hook member 11 no longer hooks the pin 26 of the hammer 6, which allows for clear triggering without additional friction.
- the hammer 6 is no longer in a blocked position and can act more easily to reset the chronograph thanks firstly to the restitution of the energy stored by the flexible element 10 and subsequently by the pressure of push button B of a user.
- the operation of resetting the chronograph to zero is facilitated.
- the hammer 6 is pushed by the flexible element 10 from its first end 10a and towards the different mobiles 3, 4, 5 in particular the hearts 13, 14, 15 of mobiles.
- the hammer 6 comprises three contact portions 16a, 16b, 16c.
- a first contact portion 16a placed on the hammer 6 comes into contact with the heart 13 of the chrono mobile 3.
- a second contact portion 16b placed on the hammer 6 comes into contact with the heart 15 of the hour mobile 5.
- the first contact portion 16a and the second contact portion 16b form an assembly rotatably mounted around an axis 37 on the hammer 6 near the first longitudinal opening 17.
- An angular stop 36 is provided between the first contact portion 16a and the second portion of contact 16b. This stop 36 passes with a certain clearance in a central opening of the assembly, which makes it possible to compensate for the geometric defects of the components.
- a third contact portion 16c placed on the hammer 6 near the first end 10a of the flexible element 10 comes into contact with the core 14 of the minute mobile 4.
- This third contact portion 16c is connected by a strip U-shaped metal, and its end opposite the contact portion is fixed by studs 43 or other fixing means to the upper end of the hammer 6.
- An adjusting eccentric 44 is fixed in a hole corresponding to the end upper part of the hammer 6 to adjust the position of the third contact portion 16c.
- each flat of the hearts 13, 14, 15 are held in a zero position by each respective portion of contact 16a, 16b, 16c.
- the screws or other rods 17 and 18, which are in each longitudinal opening 7 and 8, are at a high end of the longitudinal openings 7 and 8 during the reset and before placement in an inactive locking position of the hammer 6 a once push-button B is released.
- the length of each longitudinal opening 7 and 8 is determined in such a way that each screw 17 and 18 can move from an inactive position when blocking the hammer 6 and an active reset position.
- a minute hand 34 must be frictionally connected to the axis 24 to indicate the minutes of the chronograph on a dial not shown of the timepiece.
- An hour hand 35 must be frictionally connected to axis 25 to indicate the hours of the chronograph on the dial not shown of the timepiece. The same may be true for the chronograph seconds indication, but no hand is shown.
- the push button B In order to return the flexible element 10 to its initial position once the push button B is released, it can be provided to have another return spring 32, a free end 32a of which comes into contact in a housing 41 made in the first portion of the rotary control rocker 12 under the second end 10b of the flexible element 10.
- the other end 32b of the return spring 32 is fixed by means of a screw 42, which is screwed into a corresponding thread made in the base or the frame or the plate of the timepiece.
- THE figures 4 and 5 following represent a chronograph counting train 2, which comprises on the one hand a minute train at the figure 4 and on the other hand a cog of the hours figure 5 .
- the different wheels for the minute train and the hour train are shown connected by broken lines.
- a first toothed wheel 62 arranged on the axis 23 of the chrono mobile 3 meshes with an intermediate wheel 63, the diameter of which is larger than the diameter of the first toothed wheel 62.
- a second intermediate wheel 64 of smaller diameter is placed on the intermediate wheel 63 to drive a wheel of the hour train explained below.
- a third proximal intermediate wheel 65 coaxial and of smaller diameter than the intermediate wheel 63, makes it possible to drive a large wheel 66 mounted on the axis 24 of the minute wheel 4.
- the dimension of each wheel is of course determined as a function of time counted and displayed to go from the second with a first indicator member to the minute with a second indicator member, such as a needle 34 on a dial not shown.
- the first toothed wheel 62 arranged on the axis 23 of the chrono mobile 3 meshes with the intermediate wheel 63, the diameter of which is larger than the diameter of the first toothed wheel 62.
- the second intermediate wheel 64 of smaller diameter meshes with a second intermediate wheel 68 of larger diameter which itself includes below another small intermediate wheel which is intended to drive another large wheel 67, of which a proximal wheel of smaller diameter on the same axis drives an hour wheel 69.
- the dimension of each wheel is of course determined according to the time counted and to be displayed for go from the second with a first indicator member to the time with a third indicator member, such as a needle 35 on a dial not shown.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
Description
L'invention concerne un système de remise à zéro d'un chronographe. Le système est muni d'un rouage de comptage chronographe, qui comprend au moins un compteur de minutes ayant un mobile des minutes, et un compteur de secondes, qui comprend un mobile chrono. Le système comprend un marteau maintenu bloqué par un moyen de blocage et déplaçable depuis une position inactive, où le marteau est bloqué par le moyen de blocage, et une position active, quand le marteau est débloqué, pour la remise à zéro du chronographe en contact des différents mobiles.The invention relates to a system for resetting a chronograph to zero. The system is provided with a chronograph counting train, which includes at least one minute counter having a minutes mobile, and a seconds counter, which includes a chrono mobile. The system comprises a hammer held blocked by a blocking means and movable from an inactive position, where the hammer is blocked by the blocking means, and an active position, when the hammer is unlocked, for resetting the chronograph in contact of different mobiles.
Généralement un mécanisme de chronographe comprend un rouage de comptage chronographe, qui permet de compter le temps depuis la seconde au moyen d'un mobile de chronographe ou compteur de secondes, vers la minute au moyen d'un compteur de minutes, et éventuellement vers l'heure au moyen d'un compteur d'heures. Chaque compteur comprend un organe indicateur se déplaçant sur une échelle graduée correspondante. Lors de la remise à zéro du chronographe, les organes indicateurs sont traditionnellement indexés à une position angulaire correspondant au zéro de chaque échelle graduée. Pour cela, chaque organe indicateur est généralement porté par l'axe d'un élément correspondant du rouage. La liaison entre l'élément du rouage et son axe est à friction pour permettre à ces deux organes, un déplacement angulaire indépendant, au-delà d'un certain couple. Les organes indicateurs sont indexés au moyen de mécanismes de coeurs et de marteaux correspondants. L'utilisation de liaisons à friction et de mécanismes de coeurs et de marteaux signifie que le couple à fournir lors de la remise à zéro des différents compteurs peut être important, et une énergie importante est consommée.Generally a chronograph mechanism includes a chronograph counting train, which allows time to be counted from the second by means of a chronograph mobile or seconds counter, towards the minute by means of a minutes counter, and possibly towards the hour using an hour counter. Each counter includes an indicator member moving on a corresponding graduated scale. When resetting the chronograph to zero, the indicator organs are traditionally indexed to an angular position corresponding to the zero of each graduated scale. For this, each indicator member is generally carried by the axis of a corresponding element of the train. The connection between the element of the cog and its axis is friction to allow these two organs an independent angular movement, beyond a certain torque. The indicator organs are indexed by means of corresponding heart and hammer mechanisms. The use of Friction connections and heart and hammer mechanisms mean that the torque to be provided when resetting the various counters can be significant, and significant energy is consumed.
A titre comparatif dans une pièce d'horlogerie à chronographe traditionnelle, il est souvent utilisé un dispositif dit « de flambage ». Un tel dispositif crée un point dur lors de la pression sur un bouton-poussoir et une fois que le point dur est passé, par un effet d'inertie la fonction pour la remise à zéro est effectuée. Il est à noter que le ressort pressé et qui a passé le point dur à un effet de frottement négatif tout au long de sa fonction pour la remise à zéro, et une énergie importante est consommée.For comparison, in a traditional chronograph timepiece, a so-called “buckling” device is often used. Such a device creates a hard point when pressing a push button and once the hard point has passed, by an inertia effect the reset function is carried out. It should be noted that the spring pressed and which has passed the hard point has a negative friction effect throughout its function for resetting, and significant energy is consumed.
Dans ces conditions, il doit être trouvé un moyen permettant de pallier à cette énergie consommée uniquement pour la remise à zéro des différents compteurs. Un barillet supplémentaire peut être utilisé pour apporter l'énergie nécessaire, mais des problèmes d'encombrement sont constatés par rapport aux autres éléments de base de la pièce d'horlogerie. Il est donc important de disposer d'autres mécanismes pour la remise à zéro du chronographe.Under these conditions, a means must be found to compensate for this energy consumed solely for resetting the various counters to zero. An additional barrel can be used to provide the necessary energy, but space problems are noted in relation to the other basic elements of the timepiece. It is therefore important to have other mechanisms for resetting the chronograph to zero.
Le document
L'invention a donc pour but de pallier les inconvénients de l'état de la technique en fournissant un système de remise à zéro d'un chronographe, notamment d'une pièce d'horlogerie. Un objectif de l'invention est précisément de bénéficier d'une accumulation d'énergie d'un élément flexible, tel qu'un ressort embarqué, lié à un marteau pour restituer cette énergie au moment du déblocage du marteau pour la remise à zéro du chronographe.The invention therefore aims to overcome the disadvantages of the state of the art by providing a system for resetting a chronograph, in particular a timepiece. An objective of the invention is precisely to benefit from an accumulation of energy of a flexible element, such as an on-board spring, linked to a hammer to restore this energy at the time of unlocking the hammer for resetting the chronograph.
A cet effet, l'invention concerne un système de remise à zéro d'un chronographe, qui comprend les caractéristiques définies dans la revendication indépendante 1.To this end, the invention relates to a system for resetting a chronograph, which comprises the characteristics defined in
Des formes d'exécution particulières du système de remise à zéro sont définies dans les revendications dépendantes 2 à 12.Particular embodiments of the reset system are defined in
Un avantage du système de remise à zéro d'un chronographe selon l'invention réside dans le fait qu'il comprend un élément flexible fixé par une première extrémité à une extrémité supérieure d'un marteau, et par une seconde extrémité à une première portion d'une bascule de commande montée rotative sur une base ou un bâti ou une platine de la pièce d'horlogerie. Lors d'une opération de remise à zéro du chronographe, un organe externe d'activation, tel qu'un bouton-poussoir, est pressé sur une seconde portion de la bascule de commande faisant tourner la bascule autour de son axe de rotation, et ainsi entraîner la seconde extrémité de l'élément flexible, tel qu'un ressort embarqué, avec une certaine force pour qu'il emmagasine de l'énergie lors de cette opération.An advantage of the system for resetting a chronograph according to the invention lies in the fact that it comprises a flexible element fixed by a first end to an upper end of a hammer, and by a second end to a first portion a control rocker rotatably mounted on a base or a frame or a plate of the timepiece. During a chronograph reset operation, an external activation member, such as a push button, is pressed on a second portion of the control rocker causing the rocker to rotate around its axis of rotation, and thus drive the second end of the flexible element, such as an on-board spring, with a certain force so that it stores energy during this operation.
Un autre avantage du système de remise à zéro d'un chronographe selon l'invention réside dans le fait qu'il comprend un moyen de blocage du marteau, qui est de préférence un organe à crochet monté rotatif sur une base ou bâti ou platine de la pièce d'horlogerie et bloquant le marteau par une goupille fixe montée sur le marteau lorsque le crochet à une première extrémité vient se crocher sur la goupille. Avant de pousser la seconde extrémité de l'organe à crochet par une extrémité de la seconde portion de la bascule de commande, cette extrémité de la seconde portion de la bascule de commande se trouve initialement distante et en regard de la seconde extrémité de l'organe à crochet. Ainsi lors de l'action sur le bouton-poussoir poussant la seconde portion de la bascule de commande, l'élément flexible est contraint et emmagasine de l'énergie avant même que la seconde extrémité de l'organe à crochet soit poussée. Cet élément flexible emmagasine encore de l'énergie jusqu'au moment où le crochet de la première extrémité de l'organe à crochet n'est plus un contact de la goupille de blocage. Après cela, le marteau est entraîné par la première extrémité de l'élément flexible ayant emmagasiné suffisamment d'énergie qu'il restitue pour opérer une remise à zéro du chronographe.Another advantage of the system for resetting a chronograph according to the invention lies in the fact that it comprises a hammer blocking means, which is preferably a hook member rotatably mounted on a base or frame or plate. the timepiece and blocking the hammer by a fixed pin mounted on the hammer when the hook at a first end hooks on the pin. Before pushing the second end of the hook member through one end of the second portion of the control rocker, this end of the second portion of the control rocker is initially distant from and facing the second end of the hook organ. Thus when acting on the push button pushing the second portion of the control rocker, the flexible element is stressed and stores energy even before the second end of the hook member is pushed. This flexible element still stores energy until the hook of the first end of the hook member is no longer in contact with the locking pin. After that, the hammer is driven by the first end of the flexible element having stored enough energy which it releases to reset the chronograph to zero.
Ainsi, le système permet d'emmagasiner de l'énergie par l'intermédiaire de l'élément flexible pour réaliser une fonction de remise à zéro du chronographe, et permet également un déclenchement franc sans frottement par l'intermédiaire de l'organe à crochet lors du déblocage du marteau pour la remise à zéro du chronographe.Thus, the system makes it possible to store energy via the flexible element to perform a chronograph reset function, and also allows clear triggering without friction via the hook member. when unlocking the hammer to reset the chronograph.
Les buts, avantages et caractéristiques du système de remise à zéro d'un chronographe apparaîtront mieux dans la description suivante notamment en regard des dessins sur lesquels :
- les
figures représentent une vue de dessous et une vue tridimensionnelle de dessous du système de remise à zéro d'un chronographe avant l'opération d'une remise à zéro du chronographe selon l'invention,1a et 1b - la
figure 2 représente une vue de dessous du système de remise à zéro d'un chronographe juste avant le déblocage d'un marteau pour l'opération de remise à zéro du chronographe selon l'invention, - les
figures 3a et 3b représentent une vue de dessous et une vue tridimensionnelle de dessous du système de remise à zéro d'un chronographe lors de l'opération de remise à zéro du chronographe une fois que le marteau est débloqué selon l'invention, - la
figure 4 représente une vue tridimensionnelle d'un rouage de comptage chronographe en montrant principalement un rouage compteur de minutes du système de remise à zéro selon l'invention, et - la
figure 5 représente une vue tridimensionnelle d'un rouage de comptage chronographe en montrant principalement un rouage compteur de minutes d'heures du système de remise à zéro selon l'invention.
- THE
figures 1a and 1b represent a bottom view and a three-dimensional bottom view of the reset system of a chronograph before the operation of resetting the chronograph according to the invention, - there
figure 2 represents a bottom view of the system for resetting a chronograph just before unlocking a hammer for the operation of resetting the chronograph according to the invention, - THE
figures 3a and 3b represent a bottom view and a three-dimensional bottom view of the reset system of a chronograph during the chronograph reset operation once the hammer is unlocked according to the invention, - there
figure 4 represents a three-dimensional view of a chronograph counting train, mainly showing a minute counter train of the reset system according to the invention, and - there
figure 5 represents a three-dimensional view of a chronograph counting train, mainly showing a minute-hour counter train of the reset system according to the invention.
Dans la description suivante, des éléments d'un système de remise à zéro d'un chronographe, qui sont bien connus dans ce domaine technique, ne seront décrits que sommairement.In the following description, elements of a chronograph resetting system, which are well known in this technical field, will only be described briefly.
Les
Le système 1 de remise à zéro comprend un mobile chrono 3, qui est normalement le mobile des secondes, qui fait partie du rouage de comptage chronographe 2 des
Il est à noter qu'une pièce d'horlogerie dotée d'un chronographe comprend habituellement des mobiles de chronographe, qui sont montés pivotant à friction sur un bâti ou une platine de la pièce d'horlogerie. Cela signifie que lors de la remise à zéro du chronographe, il est possible de tourner avec un couple suffisant les mobiles maintenus seulement par friction par leur axe dans une ouverture prévue à cet effet, jusqu'à l'indication de remise à zéro du chronographe.It should be noted that a timepiece equipped with a chronograph usually includes chronograph mobiles, which are pivotally mounted with friction on a frame or plate of the timepiece. This means that when resetting the chronograph, it is possible to rotate with sufficient torque the mobiles held only by friction by their axis in an opening provided for this purpose, until the chronograph reset indication.
Le système 1 de remise à zéro comprend principalement un élément flexible 10, qui peut être un ressort embarqué, qui est relié entre un moyen de commande 12 de remise à zéro et une partie d'extrémité du marteau 6, qui est utilisé pour la remise à zéro du chronographe. L'élément flexible 10 est configuré de telle manière à emmagasiner de l'énergie lors d'un déplacement du moyen de commande 12 et avant le déblocage du marteau 6 bloqué par un moyen de blocage 11 pour être en mesure au moment du déblocage du marteau 6 de restituer cette énergie emmagasinée et entraîner le marteau 6 pour la remise à zéro du chronographe.The
Principalement, l'élément flexible 10 est lié par une première extrémité 10a au marteau 6 par exemple à une partie d'extrémité du marteau 6 utilisé pour la remise à zéro du chronographe. Une goupille 19 est insérée à la première extrémité 10a de l'élément flexible 10 et est logée dans une ouverture allongée 9 pratiquée à une extrémité supérieure plane du marteau 6. La seconde extrémité 10b de l'élément flexible 10 est fixée au moyen de commande 12, qui est monté sur la base ou le bâti ou la platine de la pièce d'horlogerie, et est utilisé lors de l'opération de remise à zéro du chronographe. L'élément flexible 10, tel que le ressort embarqué, est de forme arquée entre sa première extrémité 10a et sa seconde extrémité 10b. Cette forme arquée en direction d'un organe externe d'activation B, tel qu'un bouton-poussoir, pouvant agir sur le moyen de commande 12, peut être adaptée pour améliorer l'énergie emmagasinée avant la remise à zéro du chronographe.Mainly, the
Le moyen de commande 12 est de préférence une bascule de commande par exemple plane, qui est montée rotative de préférence par un élément de fixation 22, qui est plutôt une vis 22 passant par une ouverture centrale de la bascule de commande et qui est vissée fixement dans un taraudage correspondant dans la base ou le bâti ou la platine de la pièce d'horlogerie. Cette bascule de commande 12, qui est montée rotative autour de l'axe défini par la vis 22, comprend une première portion d'un premier côté de l'axe, sur laquelle est fixée par des goujons 40 ou autres moyens de fixation, la seconde extrémité 10b de l'élément flexible 10. La bascule de commande 12 comprend encore une seconde portion d'un second côté de l'axe de rotation opposé au premier côté, et à une extrémité de laquelle peut agir un bouton-poussoir B pour la remise à zéro du chronographe. Comme expliqué par la suite selon l'invention, dans une position de blocage, le marteau 6 est maintenu bloqué par un moyen de blocage 11. Juste avant la remise à zéro du chronographe, le bouton-poussoir B presse la seconde portion de la bascule de commande 12 rotative et de ce fait, agit tout d'abord sur l'élément flexible depuis sa seconde extrémité 10b pour effectuer une accumulation d'énergie avant le déblocage effectif du marteau 6, qui intervient en pressant encore plus loin le bouton-poussoir B.The control means 12 is preferably a control rocker, for example planar, which is rotatably mounted preferably by a fixing
Le marteau 6 est de préférence une plaque métallique, et est monté en translation avec une première ouverture longitudinale 7 et une seconde ouverture longitudinale 8 dans lesquelles sont placées des tiges fixes 17, 18, qui sont par exemple une première vis 17 et une seconde vis 18. Ces deux vis 17, 18 peuvent être vissées dans des taraudages prévus à cet effet sur une base ou bâti ou platine de la pièce d'horlogerie non représenté, mais en laissant le marteau libre de mouvement entre une position inactive de blocage et une position active de remise à zéro. Les deux ouvertures longitudinales 7, 8 sont de préférence de même longueur et sur une même ligne sur la longueur du marteau 6. La longueur des ouvertures longitudinales est adaptée de telle manière que le marteau 6 peut occuper une position inactive de blocage et une position active de remise à zéro du chronographe en contact des différents coeurs 13, 14 des mobiles 3, 4 voire aussi du coeur 15 du mobile 5 expliqués ci-après.The
Le moyen de blocage 11 du marteau 6 est de préférence un organe à crochet 11 monté rotatif sur le marteau 6. L'organe à crochet 11 de forme plane comprend une ouverture centrale à travers laquelle passe la seconde vis 18, dont le taraudage est dans la seconde ouverture longitudinale 8 du marteau 6 défini comme le côté supérieur du marteau 6, où agit le bouton-poussoir B. L'organe à crochet 11 comprend à une première extrémité 11a, un crochet pour venir s'accrocher sur une goupille 26 fixée verticalement sur le marteau 6 à proximité de la seconde ouverture longitudinale 8 et entre les deux ouvertures longitudinales 7, 8 du marteau 6. La seconde extrémité 11b de l'organe à crochet 11, qui est située d'un côté opposé par rapport à l'axe de rotation de la seconde vis 18, comprend une tige 21 par laquelle une première extrémité libre d'un ressort de rappel 31 de l'organe à crochet 11 peut agir pour ramener l'organe à crochet 11 dans une position de blocage du marteau 6. Une seconde extrémité du ressort de rappel 31 peut être fixée par une vis 51 vissée dans un taraudage correspondant pratiqué dans la base ou le bâti ou la platine de la pièce d'horlogerie.The locking means 11 of the
Pour une opération de remise à zéro du chronographe, une extrémité intérieure 12' de la seconde portion de la bascule de commande 12 rotative est disposée en regard et distante de la seconde extrémité 11b de l'organe à crochet 11. Quand le bouton-poussoir B est pressé pour une opération de remise à zéro du chronographe, l'élément flexible 10 emmagasine tout d'abord de l'énergie par la rotation de la bascule de commande 12 suite à la pression sur le bouton-poussoir B. L'élément flexible 10 emmagasine de l'énergie déjà avant que l'extrémité intérieure 12' de la seconde portion de la bascule de commande 12 vienne pousser la seconde extrémité 11b de l'organe à crochet 11, et ceci jusqu'au moment où le crochet de la première extrémité 11a de l'organe à crochet 11 n'accroche plus la goupille 26 du marteau 6, ce qui permet d'avoir un déclenchement franc sans frottement supplémentaire. Dans cet état, le marteau 6 n'est plus dans une position bloquée et peut agir plus facilement pour la remise à zéro du chronographe grâce tout d'abord à la restitution de l'énergie emmagasinée par l'élément flexible 10 et subséquemment par la pression du bouton-poussoir B d'un utilisateur.For a chronograph reset operation, an interior end 12' of the second portion of the
Grâce à cette énergie accumulée par l'élément flexible 10 juste avant le déblocage du marteau 6, l'opération de remise à zéro du chronographe est facilitée. Le marteau 6 est poussé par l'élément flexible 10 depuis sa première extrémité 10a et en direction des différents mobiles 3, 4, 5 notamment des coeurs 13, 14, 15 de mobiles. Pour ce faire et dans le cas des trois mobiles à disposition, le marteau 6 comprend trois portions de contact 16a, 16b, 16c. Une première portion de contact 16a disposée sur le marteau 6 vient en contact du coeur 13 du mobile chrono 3. Une seconde portion de contact 16b disposée sur le marteau 6 vient en contact du coeur 15 du mobile des heures 5. La première portion de contact 16a et la seconde portion de contact 16b forment un ensemble monté rotatif autour d'un axe 37 sur le marteau 6 à proximité de la première ouverture longitudinale 17. Une butée angulaire 36 est prévue entre la première portion de contact 16a et la seconde portion de contact 16b. Cette butée 36 passe avec un certain jeu dans une ouverture centrale de l'ensemble, ce qui permet de compenser les défauts géométriques des composants. Finalement, une troisième portion de contact 16c disposée sur le marteau 6 à proximité de la première extrémité 10a de l'élément flexible 10, vient en contact du coeur 14 du mobile des minutes 4. Cette troisième portion de contact 16c est reliée par une bande métallique en forme de U, et son extrémité opposée à la portion de contact est fixée par des goujons 43 ou autres moyens de fixation à l'extrémité supérieure du marteau 6. Un excentrique de réglage 44 est fixé dans un trou correspondant à l'extrémité supérieure du marteau 6 pour régler la position de la troisième portion de contact 16c.Thanks to this energy accumulated by the
La position de ces trois mobiles 3, 4, 5 et des portions de contact 16a, 16b, 16c au terme de la remise à zéro du chronographe, sont montrées explicitement aux
A titre purement illustratif, une aiguille des minutes 34 doit être connectée à friction sur l'axe 24 pour indiquer les minutes du chronographe sur un cadran non représenté de la pièce d'horlogerie. Une aiguille des heures 35 doit être connectée à friction sur l'axe 25 pour indiquer les heures du chronographe sur le cadran non représenté de la pièce d'horlogerie. Il peut en être de même pour l'indication des secondes du chronographe, mais aucune aiguille n'est représentée.For purely illustrative purposes, a
De manière à remettre l'élément flexible 10 dans sa position initiale une fois que le bouton-poussoir B est relâché, il peut être prévu d'avoir un autre ressort de rappel 32 dont une extrémité libre 32a vient en contact dans un logement 41 réalisé dans la première portion de la bascule de commande 12 rotative sous la seconde extrémité 10b de l'élément flexible 10. L'autre extrémité 32b du ressort de rappel 32 est fixée au moyen d'une vis 42, qui est vissée dans un taraudage correspondant réalisé dans la base ou le bâti ou la platine de la pièce d'horlogerie. Une fois que l'élément flexible 10 et le bouton-poussoir B sont dans une position initiale, le ressort de rappel 31 pousse l'organe à crochet 11 dans sa position de blocage du marteau de manière conventionnelle avant une prochaine opération de remise à zéro du chronographe.In order to return the
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A partir de la description qui vient d'être faite, de multiples variantes de réalisation du système de remise à zéro pour la remise à zéro dans chronographe être conçues par l'homme du métier sans sortir du cadre de l'invention définie par les revendications. Il peut être prévu un ou plusieurs éléments flexibles de forme identique ou différente, et disposés entre une extrémité du marteau et la bascule de commande. De plus, il peut être envisagé d'avoir un ou plusieurs marteaux rotatifs et non à mouvement linéaire pour la remise à zéro du chronographe.From the description which has just been made, multiple alternative embodiments of the resetting system for resetting to zero in a chronograph can be designed by those skilled in the art without departing from the scope of the invention defined by the claims . One or more flexible elements of identical or different shape may be provided, and arranged between one end of the hammer and the control lever. In addition, it can be considered to have one or more rotating hammers and not linear movement hammers for resetting the chronograph to zero.
Claims (12)
- System (1) for resetting a chronograph, which is provided with a chronograph counting train (2), which comprises at least a minute counter having a minute wheel set (4), and a seconds counter, which comprises a chronograph wheel set (3), the minute wheel set (4) including a heart-piece (14), constituting a cam shape, mounted on a central arbor (24) of the minute wheel set and the chronograph wheel set (3) including a heart-piece (13) mounted on a central arbor (23) of the chronograph wheel set, the system (1) comprising a hammer (6) immobilised by an immobilising means (11) and capable of being displaced from an inactive position, where the hammer (6) is immobilised by the immobilising means (11), and an active position, when the hammer (6) is released, to reset the chronograph in contact with the various heart-pieces of the wheel sets (3, 4),the system (1) comprising a flexible element (10) connected between a reset control means (12) and the hammer (6) used for resetting the chronograph, the flexible element (10) being configured in such a way as to store energy during a displacement of the control means (12) before the hammer (6) is released by the immobilising means (11) in order to be able, when the hammer (6) is released, to output this stored energy and drive the hammer (6) to reset the chronograph, the flexible element (10) being connected by a first end (10a) to the hammer (6), which is used for resetting the chronograph,characterised in that a second end (10b) of the flexible element (10) is fastened to the control means (12) which is mounted on a base, frame or plate of a timepiece, and in that the flexible element (10) has an arcuate shape from a rest position between its first end (10a) and its second end (10b), this arcuate shape being oriented towards an external activation member (B) of the control means (12) in such a way as to accumulate energy as a result of the external activation member being pressed and to output the accumulated energy when the hammer (6) is released in order to reset the chronograph.
- System (1) according to claim 1, characterised in that the first end (10a) of the flexible element (10) is connected by means of a rod or pin (19) inserted into an elongate opening (9) formed in a planar end of the hammer (6).
- System (1) according to one of claims 1 and 2, characterised in that the control means (12) are a control lever (12) rotatably mounted by a fastening element (22) passing through a central opening in the control lever (12) and which is fastened in the base, frame or plate of the timepiece.
- System (1) according to claim 3, characterised in that the control lever (12), which is planar, is rotatably mounted by a screw (22) passing through the central opening in the control lever (12) and which is fixedly screwed into a corresponding thread in the base, frame or plate of the timepiece.
- System (1) according to claim 4, characterised in that the control lever (12) comprises a first portion on a first side of the arbor (22), on which portion the second end (10b) of the flexible element (10) is fastened by fastening means (40), such as stud bolts (40), and in that the control lever (12) comprises a second portion on a second side of the arbor opposite the first side, and at one end whereof the external activation member, which is a push-button (B), can act.
- System (1) according to claim 1, characterised in that the hammer (6) is translatably mounted with a first longitudinal opening (7) and a second longitudinal opening (8) in which stationary rods are placed, which rods are, for example, a first screw (17) placed in the first longitudinal opening (7) in the hammer (6) and a second screw (18) in the second longitudinal opening (8) in the hammer (6), the hammer being displaced rectilinearly from the inactive position into the active reset position, the two screws (17, 18) being screwed into threads provided for this purpose on a base, frame or plate of the timepiece.
- System (1) according to claim 6, characterised in that the immobilising means (11) comprise a hook member (11) rotatably mounted on the hammer (6), the second screw (18) for guiding the hammer (6) passing through a central opening in the hook member (11) and on the upper side of the hammer (6) towards the control means (12), in that the hook member (11) comprises a first end (11a) with a hook for hooking onto a pin (26) fastened vertically on the hammer (6) in the vicinity of the second longitudinal opening (8) and between the two longitudinal openings (7, 8), and in that the hook member (11) comprises a second end (11b) on a side opposite the first end relative to the axis of rotation (18), a rod (21) being mounted through the second end (11b) and being disposed so as to be pushed by part of the control means (12) during a resetting operation.
- System (1) according to claim 7, characterised in that the control means (12) are a control lever (12) rotatably mounted by a screw (22) passing through the central opening in the control lever (12) and which is fixedly screwed into a corresponding thread in the base, frame or plate of the timepiece, in that the control lever comprises a first portion, on a first side of the arbor (22), for fastening the second end (10b) of the flexible element (10), in that the control lever (12) comprises a second portion, on a second side of the arbor opposite the first side, and at one end whereof a push-button (B) can act, and in that an inner end (12') of the second portion of the control lever (12) is disposed facing and at a distance from the second end of the hook member (11) in such a way as to allow the flexible element to store energy when the push-button is pressed before the rod (21) of the second end (11b) of the hook member (11) is pushed by the inner end (12') of the second portion of the lever and until the hook of the first end (11a) is no longer hooked to the pin (26) of the hammer (6) to output the energy stored in order to drive the hammer (6) when resetting the chronograph.
- System (1) according to claim 8, wherein the chronograph further comprises an hour counter provided with an hour wheel set (5), a heart-piece of the hour wheel set being mounted on a central arbor of the hour wheel set, characterised in that the released hammer (6) is pushed by the flexible element (10) from its first end (10a) towards the various heart-pieces (13, 14, 15) of the wheel sets (3, 4, 5), in that the hammer (6) comprises three contact portions (16a, 16b, 16c), a first contact portion (16a) disposed on the hammer (6) coming into contact with the heart-piece (13) of the chronograph wheel set (3), a second contact portion (16b) disposed on the hammer (6) coming into contact with the heart-piece (15) of the hour wheel set (5), and a third contact portion (16c) disposed on the hammer (6) in the vicinity of the first end (10a) of the flexible element (10) coming into contact with the heart-piece (14) of the minute wheel set (4).
- System (1) according to claim 9, characterised in that the first contact portion (16a) and the second contact portion (16b) form an assembly rotatably mounted about an arbor (37) on the hammer (6) in the vicinity of the first longitudinal opening (17), and in that an angular banking (36) is disposed between the first contact portion (16a) and the second contact portion (16b) passing through a central opening in the assembly with a certain clearance.
- System (1) according to claim 9, characterised in that the third contact portion (16c) is connected by a U-shaped metal strip and the end thereof opposite the contact portion (16c) is fastened by stud bolts (43) to the upper end of the hammer (6).
- System (1) according to claim 11, characterised in that an adjustment eccentric (44) is fastened in a corresponding hole at the upper end of the hammer (6) to adjust the position of the third contact portion (16c).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20161120.9A EP3876042B1 (en) | 2020-03-05 | 2020-03-05 | System for resetting a chronograph |
EP21153632.1A EP3876043B1 (en) | 2020-03-05 | 2021-01-27 | System for zero resetting of a chronograph |
US17/164,170 US11687043B2 (en) | 2020-03-05 | 2021-02-01 | Chronograph reset system |
JP2021025037A JP7066889B2 (en) | 2020-03-05 | 2021-02-19 | Chronograph reset system |
CN202110253208.4A CN113359405B (en) | 2020-03-05 | 2021-03-04 | Timer reset system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP20161120.9A EP3876042B1 (en) | 2020-03-05 | 2020-03-05 | System for resetting a chronograph |
Publications (2)
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EP3876042A1 EP3876042A1 (en) | 2021-09-08 |
EP3876042B1 true EP3876042B1 (en) | 2023-12-06 |
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EP20161120.9A Active EP3876042B1 (en) | 2020-03-05 | 2020-03-05 | System for resetting a chronograph |
EP21153632.1A Active EP3876043B1 (en) | 2020-03-05 | 2021-01-27 | System for zero resetting of a chronograph |
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EP21153632.1A Active EP3876043B1 (en) | 2020-03-05 | 2021-01-27 | System for zero resetting of a chronograph |
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US (1) | US11687043B2 (en) |
EP (2) | EP3876042B1 (en) |
JP (1) | JP7066889B2 (en) |
CN (1) | CN113359405B (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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CH718458A9 (en) * | 2021-03-18 | 2022-11-30 | Mft Dhorlogerie Audemars Piguet Sa | Actuation mechanism for a watch movement, in particular a chronograph mechanism comprising such an actuation mechanism. |
EP4290316A1 (en) * | 2022-06-09 | 2023-12-13 | Manufacture d'Horlogerie Audemars Piguet SA | Control device for timepiece movement, corresponding timepiece movement and timepiece |
WO2023248177A1 (en) | 2022-06-23 | 2023-12-28 | Lvmh Swiss Manufactures Sa | Bistable timepiece control mechanism |
WO2023248178A1 (en) * | 2022-06-23 | 2023-12-28 | Lvmh Swiss Manufactures Sa | Bistable timepiece control mechanism |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1746471B1 (en) * | 2005-07-20 | 2019-09-18 | Breitling AG | Return-to-zero device for two time counters |
JP5168843B2 (en) * | 2006-03-03 | 2013-03-27 | セイコーエプソン株式会社 | Chronograph clock |
EP1890205B1 (en) * | 2006-08-15 | 2011-11-30 | Chopard Manufacture SA | Reset mechanism for a timepiece |
CH698827B1 (en) * | 2006-08-15 | 2009-11-13 | Chopard Manufacture Sa | Device reset for a timepiece. |
EP2073078B1 (en) * | 2007-12-21 | 2012-11-07 | Omega SA | Bistable hammer for a chronograph mechanism |
CH704752B1 (en) * | 2008-03-31 | 2012-10-15 | Manuf La Joux Perret Sa | Linear hammer for resetting counters of chronograph mechanism, has three active parts engaged with heart-shaped cam of chronograph mechanism, where two of parts are arranged at both sides of longitudinal axis of body on lever |
JP5350774B2 (en) * | 2008-12-25 | 2013-11-27 | セイコーインスツル株式会社 | Chronograph clock |
US9146541B2 (en) * | 2011-06-29 | 2015-09-29 | Rolex S.A. | Device for resetting to a predetermined position an indicator member indicative of a parameter connected with time |
CH708999A1 (en) * | 2013-12-16 | 2015-06-30 | Société Anonyme De La Manufacture D Horlogerie Audemars Piguet & Cie | Device reset with independent hammers. |
EP3059643B1 (en) * | 2015-02-23 | 2017-07-19 | Montres Breguet S.A. | Chronograph mechanism |
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2020
- 2020-03-05 EP EP20161120.9A patent/EP3876042B1/en active Active
-
2021
- 2021-01-27 EP EP21153632.1A patent/EP3876043B1/en active Active
- 2021-02-01 US US17/164,170 patent/US11687043B2/en active Active
- 2021-02-19 JP JP2021025037A patent/JP7066889B2/en active Active
- 2021-03-04 CN CN202110253208.4A patent/CN113359405B/en active Active
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EP3876043A1 (en) | 2021-09-08 |
CN113359405B (en) | 2022-05-31 |
US11687043B2 (en) | 2023-06-27 |
CN113359405A (en) | 2021-09-07 |
EP3876042A1 (en) | 2021-09-08 |
JP7066889B2 (en) | 2022-05-13 |
US20210278808A1 (en) | 2021-09-09 |
JP2021139889A (en) | 2021-09-16 |
EP3876043B1 (en) | 2023-11-29 |
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