EP3182225A1 - Timepiece sequencer mecanism with recess wheel having a reduced mechanical friction - Google Patents
Timepiece sequencer mecanism with recess wheel having a reduced mechanical friction Download PDFInfo
- Publication number
- EP3182225A1 EP3182225A1 EP15201245.6A EP15201245A EP3182225A1 EP 3182225 A1 EP3182225 A1 EP 3182225A1 EP 15201245 A EP15201245 A EP 15201245A EP 3182225 A1 EP3182225 A1 EP 3182225A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mobile
- mobile receiver
- pivot axis
- blocker
- polarity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 65
- 230000005415 magnetization Effects 0.000 claims abstract description 23
- 238000012163 sequencing technique Methods 0.000 claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 239000005557 antagonist Substances 0.000 claims abstract description 3
- 230000001788 irregular Effects 0.000 claims abstract description 3
- 230000005291 magnetic effect Effects 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000005294 ferromagnetic effect Effects 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 8
- 244000027321 Lychnis chalcedonica Species 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
- G04C5/005—Magnetic or electromagnetic means
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically
- G04C3/10—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means
- G04C3/101—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically driven by electromagnetic means constructional details
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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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
-
- 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
- G04B13/00—Gearwork
- G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement
-
- 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
- G04B13/00—Gearwork
- G04B13/002—Gearwork where rotation in one direction is changed into a stepping movement
- G04B13/003—Gearwork where rotation in one direction is changed into a stepping movement with a step for each complete revolution
Definitions
- the invention relates to a sequencer mechanism comprising a first rotationally driven locking device comprising a peripheral surface that is uniformly maintained in its geometry or in a magnetization of uniform polarity, arranged to keep a rotating receiver mobile stationary.
- the invention also relates to a clockwork mechanism comprising at least one such sequencer mechanism.
- the invention also relates to a watch comprising at least one such watch mechanism or / and at least one such sequencer mechanism.
- the invention relates to the field of clockwork mechanisms with torque or motion transmission.
- the invention relates to an alternative to the Maltese cross system whose function is to transform a continuous rotation into a jerky rotation. This is for example to rotate a passing wheel of a step (often a quarter of a turn) to the passage of an irregularity (complementary shape) on a driving mobile which is subjected to a continuous rotation.
- This system is for example used in watchmaking to stop movement, or in perpetual calendars to rotate a quarter turn a cam leap years at the passage of each year.
- Such a system is very practical because it consumes almost no energy in passing. Indeed, it does not require a jumper to hold the wheel of passage, because its rotation is directly blocked by the mobile driver in case of shock. This is valid for passing wheels not being subjected to a torque, but is not valid in the case where the wheel is subjected to a torque, permanent or not. Indeed, the friction generated at the interface between the passage wheel and the driving carrier represents a permanent consumption and proportional to the forces present on the latter.
- the present invention consists in adapting this transformation principle, in cases where the wheel is subjected to a non-negligible torque, and where it is necessary to limit the brake generated on the driving mobile as well as possible.
- the invention relates to a sequencer mechanism according to claim 1.
- the invention also relates to a clockwork mechanism comprising at least one such sequencer mechanism.
- the invention also relates to a watch comprising at least one such watch mechanism or / and at least one such sequencer mechanism.
- the invention relates to a sequencer mechanism 100 comprising a first mobile blocker 1 rotated about a first pivot axis D1.
- This first mobile blocker 1 comprises at least one peripheral holding surface 11, which is regular in its geometry or respectively in a magnetization of uniform polarity.
- This holding peripheral surface 11 is arranged to keep rotating, during a holding stroke, a mobile receiver 2 antagonist pivoting about a second pivot axis D2.
- the mobile receiver 2 is a reduced-friction passing mobile, in particular a passing wheel in the case of the variants illustrated in the figures, which comprises at its periphery second arresting elements 21.
- These second elements stop 21, or are idle rollers when the peripheral holding surface 11 is regular in its geometry, in particular cylindrical in the non-limiting example of the figures, or respectively, when the peripheral holding surface 11 is regular in a magnetization of uniform polarity, are magnets of the same polarity.
- These second stop elements 21 cooperate in pairs with the holding surface 11, on either side of a plane passing through the centers of the mobile blocker 1 and the mobile receiver 2, to keep the latter motionless during rotation. holding stroke.
- the first mobile blocker 1 also comprises at least one driving surface 12, comprising, or an irregular terrain when the peripheral holding surface 11 is regular in its geometry, or else a contrary magnetization when the peripheral holding surface 11 is regular in a magnetization of uniform polarity.
- this driving surface 12 is arranged to jump the mobile receiver 2, in a drive stroke of the first mobile blocker 1 between two holding strokes. It is understood that, with respect to an interaction zone of the mobile receiver 2, the rotation of the first mobile blocker 1 is an alternation of holding strokes during which the mobile receiver 2 is stationary, and of training races during which the mobile receiver 2 performs a rotation.
- the first mobile blocker 1 is subjected to a motor torque which causes it to rotate about the first pivot axis D1.
- the sequencer mechanism 100 is arranged to transform the rotation of the first mobile blocker 1 into a jerk rotation of the second mobile receiver 2 which is arranged in the immediate vicinity of the first mobile blocker 1, and pivots around the second pivot axis D2, of which the position in space is fixed relative to that of the first pivot axis D1.
- the second pivot axis D2 is parallel to the first pivot axis D1.
- the first mobile blocker 1 comprises, at its periphery near the periphery of the second mobile receiver 2, at least a first holding surface 11 and at least a first driving surface 12.
- the second mobile receiver 2 comprises, at its periphery near the periphery of the first blocking mobile 1, a plurality of second stop elements 21.
- These second stop elements 21 are arranged for, in a holding stroke of the first mobile 1, cooperate in pairs with such a first holding surface 11, so that at least one of the elements of the pair is in contact or magnetization cooperation with the first holding surface 11, level of a median plane PM perpendicular to the first pivot axis D1, in a stop position where the second mobile receiver 2 is stationary.
- the two second stop elements 21, which cooperate with this first holding surface 11 can have a support on either side of a main plane P passing through the first pivot axis D1 and by the intersection of the second pivot axis D2 with the median plane PM.
- second stop elements 21 are further arranged to cooperate each by mechanical or magnetic drive, as the case may be, with such a first driving surface 12 arriving in its vicinity, to allow the pivoting of the second mobile receiver 2 under the effect of the drive by the first mobile blocker 1 or under the effect of a torque which is subjected to the second mobile receiver 2, in a drive stroke of the first mobile blocker 1.
- the second elements of the stop 21 comprise idler rollers or the like, which are arranged to roll on a substantially cylindrical track constituting the first holding surface 11, and which are still arranged to penetrate into at least one notch constituting a first driving surface 12. notch is arranged to allow or generate the rotation of the second mobile receiver 2.
- the second elements stop 21 comprise receiving magnets, which are arranged in repulsion with a magnetized track of first polarity constituting the first holding surface 11, and which are still arranged to cooperate in attraction with at least one track of second polarity inverse to the first polarity constituting such a first driving surface 12.
- the first mobile blocker 1 is subjected to a motor torque which gives it a continuous rotation around the first pivot axis D1.
- the second mobile receiver 2 is subjected to a motor torque with respect to the second pivot axis D2, in agreement with the driving torque applied to the first mobile blocker 1.
- the second mobile receiver 2 is not subjected to any motor torque with respect to the second pivot axis D2.
- This second mobile receiver 2 can, again, be subjected to a resistive torque, that is to say in opposition to the driving torque applied to the first mobile blocker 1.
- the second stop elements 21 are all identical.
- each first holding surface 11 is arranged to drive at least a second stop element 21 in a step of the second mobile receiver 2, by mechanical contact or by a magnetic force, over a restricted drive angular range of the first mobile blocker 1, and the first driving surface 12 then comprises two elementary surfaces 13, 14, which are arranged to cooperate with two such second different stop elements 21, to allow the pivoting of the second mobile receiver 2, each on a part of the step.
- the first blocking mobile 1 comprises at least two levels defining together a first gap in which or in the immediate vicinity of which is movable the periphery of the second mobile receiver 2.
- the second mobile receiver 2 comprises at least two levels 2A and 2B, together defining a second gap in which or in the immediate vicinity of which is movable the periphery of the first mobile blocker 1.
- the second stop elements 21 are arranged to cooperate each by mechanical drive with a first driving surface 12, and the second mobile receiver 2 comprises a plurality of such rollers whose axes of pivoting are equidistant from the second pivot axis D2. These pivot axes can, moreover, be inclined regularly with respect to the second pivot axis D2.
- these pebbles are equidistant.
- At least one first driving surface 12 comprises two elementary surfaces 13 and 14 in the form of notches arranged to receive the rollers, separated by a projecting finger which is arranged to be introduced between two consecutive rollers.
- This finger 15 is arranged to bear on one of the rollers, at a contact surface which is closer to the second pivot axis D2 than the pivot axis of the roller concerned, as visible on the Figures 7 to 9 to drive in rotation the second mobile receiver 2 when it is not driven or is subjected to a resistant torque.
- the second stop elements 21 are arranged to cooperate each by magnetic drive with a first driving surface 12, and the second mobile receiver 2 comprises a plurality of second magnets constituting the receiving magnets and oriented according to the first polarity to the periphery of the first mobile blocker 1.
- These second magnets are equidistant from the second pivot axis D2; by this is meant that the area of highest magnetic field density of each magnet is at the same distance from the second pivot axis D2.
- the second magnets are equidistant.
- the first driving surface 12 comprises at least a first attraction magnet oriented in the second polarity towards the periphery of the second mobile receiver 2.
- the first driving surface 12 comprises at least a first ferromagnetic portion in the vicinity of the periphery of the second mobile receiver 2. It may include in particular one or more magnets, and one or more ferromagnetic parts.
- the first holding surface 11 comprises a plurality of first repulsion magnets oriented in the first polarity towards the periphery of the second mobile receiver 2.
- the receiving magnets 21, the first polarity magnetized track constituting the first holding surface 11, and the second polarity track constituting the first driving surface 12, have a magnetization oriented in the median plane PM.
- the receiving magnets 21, the first polarity magnetized track constituting the first holding surface 11, and the second polarity track constituting the first driving surface 12, have a magnetization oriented parallel to the first pivot axis D1.
- magnetization direction may be oblique, in particular according to a conical surface, or the like.
- the invention also relates to a watchmaking mechanism 500 comprising at least one such sequencer mechanism 100, and comprising first drive means for driving at least a first mobile blocker 1 of a sequencer mechanism 100.
- a watchmaking mechanism 500 comprising at least one such sequencer mechanism 100, and comprising first drive means for driving at least a first mobile blocker 1 of a sequencer mechanism 100.
- the sequencer mechanism 100 concerned is made in the mechanical alternative according to the variant of Figures 6 to 10 or else it is realized in the magnetic alternative.
- the clock mechanism 500 comprises second driving motor means subjecting a second mobile receiver 2 of a sequencer mechanism 100 to a torque around the second pivot axis D2, in agreement with the engine torque to which the driver is subjected.
- first mobile blocker 1 corresponding to the same sequencer mechanism 100, so as to provide additional torque to the first mobile blocker 1 during the rotation of the second mobile receiver 2 under the action of a first driving surface 12 of the first mobile blocker 1 .
- the invention also relates to a timepiece, in particular a watch 1000, comprising at least one such watch mechanism 500, or / and at least one such sequencer mechanism 100.
- the Figures 1 to 11 illustrate variants of the mechanical type, with a passage wheel, which is the second mobile receiver 2, which is equipped with rollers.
- the contact between the passage wheel and the first blocking mobile 1 is preferably effected through a roller 21 which rolls without sliding on the first holding surface 11, and pivots itself in a pivot of the wheel of passage 2.
- the roller 21A, or the two rollers 21A and 21D are resting on the first holding surface 11.
- the roller 21 A can be inserted into the notch of the first blocking mobile 1, and the passing wheel 2, under the influence of a torque represented in FIG.
- figure 4 by an anti-clockwise arrow, in concordance with the rotation of the first mobile blocker 1, can rotate one step, or a quarter turn in this example where the second mobile receiver 2 carries four rollers 21 equidistant to 90 °.
- the roller 21 B then bears, as well as the roller 21A which served as a pivot, on the first holding surface 11, as visible on the figure 5 until the arrival of the drive surface 12, which is the same in this particular case of the figures where the notch 12 is unique.
- the shape of the first mobile blocker 1 does not ensure the driving of the passage wheel 2, if it is not subject to a one-way torque. But by modifying the shape of the first mobile blocker 1 in the manner of the Maltese cross, with the help of a protruding finger 15 as explained above, it is possible to guarantee this training even in the absence of torque. or if the torque is not in the desired direction, ie in the opposite direction to the imposed rotation. In the holding position on the figure 6 two rollers 21A and 21D bear on the first holding surface 11.
- the roller 21A can be inserted into the first notch 13 of the first blocking mobile 1, and the finger 15 bears on this roller 21 A to rotate the passage wheel 2 by a first part of its pitch, and the bring in the position of the figure 8 .
- the first rotation of the passage wheel 2 has brought another roller 21 B to the finger 15, which guides it into the second notch 14, which drives the roller 21 B and thus the passage wheel 2 in a complementary rotation such that visible on the figure 9 , thus doing the second part of his step.
- the roller 21C then bears, as well as the roller 21 B which served as the final pivot, on the first holding surface 11, as visible on the figure 10 , until the arrival of the drive surface 12, which is the same in this particular case of the figures where it, composed of two notches 13 and 14 and the finger 15, is unique.
- the passage wheel 2 has rotated 180 °.
- the Figures 12 to 16 illustrate variants of the magnetic type, with a passage wheel, which is the second mobile receiver 2, which is equipped with magnets, and which is contactless, which is even more favorable than the lightened contact mechanical variants.
- the figures differentiate the marks 4 and 5 according to the polarities: + or North in 4, - or South in 5.
- the magnets 21 of the passage wheel 2 are in repulsion with the magnets of the first mobile blocker 1.
- the position of the passage wheel 2 is thus locked in a stable position, despite the torque that tends to the rotate (counter-clockwise on the Figures 12 and 13 ).
- the magnets 21 of the passage wheel are attracted, and the passage wheel can turn a step, a sixth of a turn in the case illustrated.
- Figures 12 and 13 illustrate the case where the magnets have a magnetization oriented in the plane.
- the same principle can be applied for magnets whose magnetization is oriented along the first pivot axis D1, as visible on the Figures 14 to 16 .
- the passing wheel 2 has two levels of attracting magnets, at two median planes PM1 and PM2. It is quite possible to have two levels on the first mobile blocker 1 rather than the wheel of passage on the same principle.
- the solutions proposed above make it possible to let a passing wheel run under torque alternately, and by limiting the consumption when the passing wheel does not rotate (at rest). Many applications are possible with this type of system.
- a first application concerns a temporary contribution of torque. Indeed, in many cases, watch movements have complications that generate additional torque consumption, but over a limited period of time. This is particularly the case of simple, annual, perpetual, or other calendar mechanisms, which consume energy during the movement of the date, usually at midnight. This consumption implies a local fall in amplitude and therefore a decrease in the power reserve.
- the described system may provide a torque supply during this time interval of overconsumption. If the passage wheel 2 is connected to an auxiliary barrel 3, smaller in size than the main barrel, or even a simple spiral spring or a blade, or any elastic or magnetic return means, and the first blocking mobile 1 is connected directly or indirectly to the work train and dimensioned to achieve a turn in 24 hours (if the over-consumption occurs only once in 24 hours), then the passage wheel 2 can bring a torque to the first mobile blocker 1 during the consumption interval and thus to avoid a fall in amplitude at the passage of midnight and thus to increase the power reserve.
- This variant is illustrated by the figure 11 .
- Another example of application relates to a torque variator.
- differential which allows to change the torque ratio between two mobile, for example barrel / center, in particular to make the torque constant when disarming the barrel
- a lever or a carrier-satellite, so that it adapts the position of the satellite according to the disarming state of the cylinder.
- This lever is therefore subject to a couple that is necessary to support.
- the passage wheel 2 driven alternately in rotation by the first blocking mobile 1, which is in this example the barrel drum, can drive this lever which therefore transmits a significant torque.
- the solution according to the invention makes it possible to maintain the passage wheel 2 fixed, with a limited consumption despite the torque to which it is subjected.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Control Of Stepping Motors (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Transmission Devices (AREA)
Abstract
Mécanisme séquenceur d'horlogerie (100) comportant un mobile bloqueur (1) entraîné en rotation comportant une surface périphérique de maintien (11) régulière dans sa géométrie ou respectivement dans une aimantation de polarité uniforme, agencée pour maintenir immobile en rotation un mobile récepteur (2) antagoniste, qui est un mobile de passage à frottement réduit comportant à sa périphérie des deuxièmes éléments d'arrêt (21), qui sont des galets fous ou respectivement des aimants selon la même polarité, coopérant par paires avec ladite surface de maintien en maintien de part et d'autre d'un plan passant par les centres des deux mobiles, le mobile bloqueur (1) comportant une surface d'entraînement (12) comportant un relief irrégulier ou respectivement une aimantation contraire et agencée pour entraîner par sauts ledit mobile récepteur (2). Mécanisme d'horlogerie (500) comportant un tel mécanisme séquenceur (100) Montre (1000) comportant un tel mécanisme d'horlogerie (500) ou/et un tel mécanisme séquenceur (100).Clock sequencing mechanism (100) comprising a rotationally movable locking device (1) having a regular peripheral holding surface (11) in its geometry or in a magnetization of uniform polarity, arranged to keep a mobile receiver stationary ( 2) antagonist, which is a low-friction passage movable having at its periphery second stop elements (21), which are idle rollers or respectively magnets of the same polarity, cooperating in pairs with said holding surface in maintaining on either side of a plane passing through the centers of the two mobiles, the mobile blocker (1) comprising a drive surface (12) having an irregular relief or respectively a contrary magnetization and arranged to jump in said mobile receiver (2). Clock mechanism (500) comprising such a sequencer mechanism (100) Watch (1000) comprising such a watch mechanism (500) and / or such a sequencer mechanism (100).
Description
L'invention concerne un mécanisme séquenceur comportant un premier mobile bloqueur entraîné en rotation comportant une surface périphérique de maintien régulière dans sa géométrie ou respectivement dans une aimantation de polarité uniforme, agencée pour maintenir immobile en rotation un mobile récepteur antagoniste.The invention relates to a sequencer mechanism comprising a first rotationally driven locking device comprising a peripheral surface that is uniformly maintained in its geometry or in a magnetization of uniform polarity, arranged to keep a rotating receiver mobile stationary.
L'invention concerne encore un mécanisme d'horlogerie comportant au moins un tel mécanisme séquenceur.The invention also relates to a clockwork mechanism comprising at least one such sequencer mechanism.
L'invention concerne encore une montre comportant au moins un tel mécanisme d'horlogerie ou/et au moins un tel mécanisme séquenceur.The invention also relates to a watch comprising at least one such watch mechanism or / and at least one such sequencer mechanism.
L'invention concerne le domaine des mécanismes d'horlogerie à transmission de couple ou de mouvement.The invention relates to the field of clockwork mechanisms with torque or motion transmission.
L'invention concerne une alternative au système de la croix de Malte dont la fonction est transformer une rotation continue en une rotation saccadée. Il s'agit par exemple de faire tourner une roue de passage d'un pas (souvent d'un quart de tour) au passage d'une irrégularité (forme complémentaire) sur un mobile entraîneur lequel est soumis à une rotation continue. Ce système est par exemple utilisé en horlogerie pour faire un arrêt mouvement, ou encore dans des quantièmes perpétuels pour faire tourner d'un quart de tour une came des années bissextiles au passage de chaque année.The invention relates to an alternative to the Maltese cross system whose function is to transform a continuous rotation into a jerky rotation. This is for example to rotate a passing wheel of a step (often a quarter of a turn) to the passage of an irregularity (complementary shape) on a driving mobile which is subjected to a continuous rotation. This system is for example used in watchmaking to stop movement, or in perpetual calendars to rotate a quarter turn a cam leap years at the passage of each year.
Un tel système est très pratique car il ne consomme quasiment pas d'énergie au passage. En effet, il ne nécessite pas de sautoir pour tenir la roue de passage, car sa rotation est directement bloquée par le mobile entraîneur en cas de choc. Ceci est valable pour des roues de passage n'étant pas soumises à un couple, mais n'est pas valable dans le cas où cette roue est soumise à un couple, permanent ou non. En effet, le frottement généré à l'interface entre la roue de passage et le mobile entraîneur représente une consommation permanente et proportionnelle aux efforts en présence sur ce dernier.Such a system is very practical because it consumes almost no energy in passing. Indeed, it does not require a jumper to hold the wheel of passage, because its rotation is directly blocked by the mobile driver in case of shock. This is valid for passing wheels not being subjected to a torque, but is not valid in the case where the wheel is subjected to a torque, permanent or not. Indeed, the friction generated at the interface between the passage wheel and the driving carrier represents a permanent consumption and proportional to the forces present on the latter.
La présente invention consiste à adapter ce principe de transformation, dans des cas où la roue est soumise à un couple non négligeable, et où il est nécessaire de limiter au mieux le frein généré sur le mobile entraîneur.The present invention consists in adapting this transformation principle, in cases where the wheel is subjected to a non-negligible torque, and where it is necessary to limit the brake generated on the driving mobile as well as possible.
A cet effet, l'invention concerne un mécanisme séquenceur selon la revendication 1.For this purpose, the invention relates to a sequencer mechanism according to
L'invention concerne encore un mécanisme d'horlogerie comportant au moins un tel mécanisme séquenceur.The invention also relates to a clockwork mechanism comprising at least one such sequencer mechanism.
L'invention concerne encore une montre comportant au moins un tel mécanisme d'horlogerie ou/et au moins un tel mécanisme séquenceur.The invention also relates to a watch comprising at least one such watch mechanism or / and at least one such sequencer mechanism.
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :
- la
figure 1 représente, de façon schématisée, et en vue de face, un premier mode mécanique de réalisation de l'invention, dans une première variante, où un premier mobile bloqueur entraîné en rotation, comportant une surface périphérique de maintien cylindrique, et comportant une encoche, coopère avec un mobile récepteur antagoniste également soumis à un couple en concordance, et porteur de galets agencés pour rouler sur la piste cylindrique, et s'enfoncer dans l'encoche au passage, pour faire pivoter le mobile récepteur ; - la
figure 2 est une vue en perspective du mécanisme de lafigure 1 ; - les
figures 3 à 5 illustrent, de façon partielle et en vue en plan, les étapes du passage, et la coopération des galets avec la piste cylindrique et l'encoche ; - les
figures 6 à 10 illustrent, de façon partielle et en vue en plan, les étapes du passage pour une variante où le mobile récepteur n'est pas soumis à un couple moteur uniforme, et où le mobile bloqueur est équipé d'un doigt saillant entre deux encoches, pour permettre de garantir l'entraînement en rotation du mobile récepteur ; - la
figure 11 représente, de façon schématisée, et en perspective, une application du mécanisme de lafigure 1 en combinaison avec un barillet auxiliaire pour fournir un appoint de couple temporaire au mobile bloqueur ; - la
figure 12 représente, de façon schématisée, et en vue de face, un deuxième mode magnétique de réalisation de l'invention, avec des aimants sur le mobile bloqueur et sur le mobile récepteur, dans une première variante où tous les aimants ont une aimantation orientée dans un même plan ; - la
figure 13 est une vue en perspective du mécanisme de lafigure 12 ; - la
figure 14 représente, de façon schématisée, et en vue de face, une deuxième variante où tous les aimants ont une aimantation orientée selon une même direction ; - la
figure 15 est une vue en perspective du mécanisme de lafigure 14 ; - la
figure 16 est une vue de côté du mécanisme de lafigure 14 ; - la
figure 17 est un schéma-blocs représentant une montre avec un mouvement, comportant des mécanismes séquenceurs selon l'invention.
- the
figure 1 represents, schematically, and in front view, a first mechanical embodiment of the invention, in a first variant, wherein a first rotational mobile driven rotationally, having a cylindrical holding peripheral surface, and having a notch, cooperates with an opposing receiver mobile also subjected to a matched torque, and carrier of rollers arranged to roll on the cylindrical track, and sink into the notch in the passage, to rotate the mobile receiver; - the
figure 2 is a perspective view of the mechanism of thefigure 1 ; - the
Figures 3 to 5 illustrate, partially and in plan view, the steps of the passage, and the cooperation of the rollers with the cylindrical track and the notch; - the
Figures 6 to 10 illustrate partially and in plan view, the steps of the passage for a variant where the mobile receiver is not subjected to a uniform motor torque, and where the mobile blocker is equipped with a finger protruding between two notches, for to guarantee the rotational drive of the mobile receiver; - the
figure 11 represents, schematically, and in perspective, an application of the mechanism of thefigure 1 in combination with an auxiliary barrel to provide a temporary torque booster to the mobile blocker; - the
figure 12 represents, schematically, and in front view, a second magnetic embodiment of the invention, with magnets on the mobile blocker and on the mobile receiver, in a first variant where all the magnets have a magnetization oriented in a same plane; - the
figure 13 is a perspective view of the mechanism of thefigure 12 ; - the
figure 14 represents, schematically, and in front view, a second variant where all the magnets have a magnetization oriented in the same direction; - the
figure 15 is a perspective view of the mechanism of thefigure 14 ; - the
figure 16 is a side view of the mechanism of thefigure 14 ; - the
figure 17 is a block diagram showing a watch with a movement, including sequencing mechanisms according to the invention.
L'invention concerne un mécanisme séquenceur 100 comportant un premier mobile bloqueur 1 entraîné en rotation autour d'un premier axe de pivotement D1.The invention relates to a
Ce premier mobile bloqueur 1 comporte au moins une surface périphérique de maintien 11, qui est régulière dans sa géométrie ou respectivement dans une aimantation de polarité uniforme.This first
Cette surface périphérique de maintien 11 est agencée pour maintenir immobile en rotation, lors d'une course de maintien, un mobile récepteur 2 antagoniste pivotant autour d'un deuxième axe de pivotement D2.This holding
Selon l'invention, le mobile récepteur 2 est un mobile de passage à frottement réduit, notamment une roue de passage dans le cas des variantes illustrées par les figures, qui comporte à sa périphérie des deuxièmes éléments d'arrêt 21. Ces deuxièmes éléments d'arrêt 21, ou bien sont des galets fous quand la surface périphérique de maintien 11 est régulière dans sa géométrie, notamment cylindrique dans l'exemple non limitatif des figures, ou bien respectivement , quand la surface périphérique de maintien 11 est régulière dans une aimantation de polarité uniforme, sont des aimants selon la même polarité.According to the invention, the
Bien entendu, on peut substituer à une piste lisse combinée avec des galets fous, une denture combinée à des pignons fous, ou similaire, sans s'écarter de la présente invention. Les galets fous sont avantageux par leurs moindres frottements.Of course, it is possible to substitute a smooth track combined with idle rollers, a toothing combined with idle gears, or the like, without departing of the present invention. Crazy rollers are advantageous by their slightest friction.
La variante électrostatique de l'invention n'est pas décrite ici en détail, le constructeur horloger saura transposer les enseignements de l'alternative magnétique décrite ci-après à une variante électrostatique, fonctionnant de la même façon.The electrostatic variant of the invention is not described here in detail, the watchmaker will transpose the teachings of the magnetic alternative described below to an electrostatic variant, operating in the same way.
Ces deuxièmes éléments d'arrêt 21 coopèrent par paire avec la surface de maintien 11, de part et d'autre d'un plan passant par les centres du mobile bloqueur 1 et du mobile récepteur 2, pour maintenir ce dernier immobile en rotation pendant la course de maintien.These
Le premier mobile bloqueur 1 comporte encore au moins une surface d'entraînement 12, comportant, ou bien un relief irrégulier quand la surface périphérique de maintien 11 est régulière dans sa géométrie, ou bien respectivement une aimantation contraire quand la surface périphérique de maintien 11 est régulière dans une aimantation de polarité uniforme.The first
Et cette surface d'entraînement 12 est agencée pour entraîner par sauts le mobile récepteur 2, dans une course d'entraînement du premier mobile bloqueur 1 entre deux courses de maintien. On comprend que, par rapport à une zone d'interaction du mobile récepteur 2, la rotation du premier mobile bloqueur 1 est une alternance de courses de maintien pendant lesquelles le mobile récepteur 2 est immobile, et de courses d'entraînement pendant lesquelles le mobile récepteur 2 effectue une rotation.And this driving
Plus particulièrement, le premier mobile bloqueur 1 est soumis à un couple moteur lui imprimant une rotation autour du premier axe de pivotement D1. Le mécanisme séquenceur 100 est agencé pour transformer la rotation du premier mobile bloqueur 1 en une rotation par à-coups du deuxième mobile récepteur 2 qui est agencé au voisinage immédiat du premier mobile bloqueur 1, et pivote autour du deuxième axe de pivotement D2, dont la position dans l'espace est fixe par rapport à celle du premier axe de pivotement D1. Dans une réalisation particulière et non limitative, illustrée par les figures, le deuxième axe de pivotement D2 est parallèle au premier axe de pivotement D1.More particularly, the first
Le premier mobile bloqueur 1 comporte, à sa périphérie au voisinage de la périphérie du deuxième mobile récepteur 2, au moins une première surface de maintien 11 et au moins une première surface d'entraînement 12.The first
Le deuxième mobile récepteur 2 comporte, à sa périphérie au voisinage de la périphérie du premier mobile bloqueur 1, une pluralité de deuxièmes éléments d'arrêt 21. Ces deuxièmes éléments d'arrêt 21 sont agencés pour, dans une course de maintien du premier mobile bloqueur 1, coopérer par paires avec une telle première surface de maintien 11, de façon à ce qu'au moins l'un des éléments de la paire soit en coopération de contact ou respectivement d'aimantation avec la première surface de maintien 11, au niveau d'un plan médian PM perpendiculaire au premier axe de pivotement D1, dans une position d'arrêt où le deuxième mobile récepteur 2 est immobile. Dans cette position d'arrêt, les deux deuxièmes éléments d'arrêt 21, qui coopèrent avec cette première surface de maintien 11, peuvent avoir un appui de part et d'autre d'un plan principal P passant par le premier axe de pivotement D1 et par l'intersection du deuxième axe de pivotement D2 avec le plan médian PM.The second
Plus particulièrement, ce sont les deux éléments de la paire qui sont en contact avec la première surface de maintien 11.More particularly, it is the two elements of the pair that are in contact with the
Ces deuxièmes éléments d'arrêt 21 sont encore agencés pour coopérer chacun par entraînement mécanique ou magnétique, selon le cas, avec une telle première surface d'entraînement 12 arrivant à sa proximité, pour autoriser le pivotement du deuxième mobile récepteur 2 sous l'effet de l'entraînement par le premier mobile bloqueur 1 ou sous l'effet d'un couple auquel est soumis le deuxième mobile récepteur 2, dans une course d'entraînement du premier mobile bloqueur 1. Dans l'alternative mécanique, les deuxièmes éléments d'arrêt 21 comportent des galets fous ou similaires, qui sont agencés pour rouler sur une piste sensiblement cylindrique constituant la première surface de maintien 11, et qui sont encore agencés pour pénétrer dans au moins une encoche constituant une première surface d'entraînement 12. Cette encoche est agencée pour autoriser ou générer la rotation du deuxième mobile récepteur 2. Dans l'alternative magnétique, les deuxièmes éléments d'arrêt 21 comportent des aimants récepteurs, qui sont agencés en répulsion avec une piste aimantée de première polarité constituant la première surface de maintien 11, et qui sont encore agencés pour coopérer en attraction avec au moins une piste de deuxième polarité inverse à la première polarité constituant une telle première surface d'entraînement 12.These
Plus particulièrement, le premier mobile bloqueur 1 est soumis à un couple moteur lui imprimant une rotation continue autour du premier axe de pivotement D1.More particularly, the first
Dans une première variante d'exécution, tel que visible sur les
Dans une autre variante d'exécution, tel que visible sur les
Dans une variante particulière, correspondant aux exécutions illustrées par les figures, les deuxièmes éléments d'arrêt 21 sont tous identiques.In a particular variant, corresponding to the embodiments illustrated by the figures, the
Plus particulièrement, chaque première surface de maintien 11 est agencée pour entraîner au moins un deuxième élément d'arrêt 21 selon un pas du deuxième mobile récepteur 2, par contact mécanique ou par un effort magnétique, sur une plage angulaire d'entraînement restreinte du premier mobile bloqueur 1, et la première surface d'entraînement 12 comporte alors deux surfaces élémentaires 13, 14, qui sont agencées pour coopérer avec deux tels deuxièmes éléments d'arrêt 21 différents, pour autoriser le pivotement du deuxième mobile récepteur 2, chacun sur une partie du pas.More particularly, each first holding
Dans une variante particulière non illustrée, le premier mobile bloqueur 1 comporte au moins deux niveaux définissant ensemble un premier entrefer dans lequel ou au voisinage immédiat duquel est mobile la périphérie du deuxième mobile récepteur 2.In a particular variant not illustrated, the first blocking mobile 1 comprises at least two levels defining together a first gap in which or in the immediate vicinity of which is movable the periphery of the second
Dans une variante particulière similaire et illustrée par les
Dans une variante particulière de l'alternative mécanique, les deuxièmes éléments d'arrêt 21 sont agencés pour coopérer chacune par entraînement mécanique avec une première surface d'entraînement 12, et le deuxième mobile récepteur 2 comporte une pluralité de tels galets dont les axes de pivotement sont équidistants du deuxième axe de pivotement D2. Ces axes de pivotement peuvent, d'ailleurs, être incliné de façon régulière par rapport au deuxième axe de pivotement D2.In a particular variant of the mechanical alternative, the
Plus particulièrement, et tel qu'illustré par les
Dans la variante où le deuxième mobile récepteur 2 n'est pas soumis à un couple moteur, un agencement particulier est nécessaire pour qu'il puisse tourner sous l'action du premier mobile bloqueur 1. Plus particulièrement, à cet effet, au moins une première surface d'entraînement 12 comporte deux surfaces élémentaires 13 et 14 en forme d'encoches agencées pour recevoir les galets, séparées par un doigt 15 saillant lequel est agencé pour s'introduire entre deux galets consécutifs. Ce doigt 15 est agencé pour venir en appui sur un des galets, au niveau d'une surface de contact qui est plus proche du deuxième axe de pivotement D2 que l'axe de pivotement du galet concerné, tel que visible sur les
Dans l'alternative magnétique, les deuxièmes éléments d'arrêt 21 sont agencées pour coopérer chacun par entraînement magnétique avec une première surface d'entraînement 12, et le deuxième mobile récepteur 2 comporte une pluralité de deuxièmes aimants constituant les aimants récepteurs et orientés selon la première polarité vers la périphérie du premier mobile bloqueur 1. Ces deuxièmes aimants sont équidistants du deuxième axe de pivotement D2; on entend par là que la zone de plus forte densité de champ magnétique de chaque aimant est à la même distance du deuxième axe de pivotement D2.In the magnetic alternative, the
Plus particulièrement, et tel que visible sur les
Plus particulièrement, la première surface d'entraînement 12 comporte au moins un premier aimant d'attraction orienté selon la deuxième polarité vers la périphérie du deuxième mobile récepteur 2.More particularly, the
Plus particulièrement, la première surface d'entraînement 12 comporte au moins une première partie ferromagnétique au voisinage de la périphérie du deuxième mobile récepteur 2. Elle peut notamment comporter à la fois un ou plusieurs aimants, et une ou plusieurs parties ferromagnétiques.More particularly, the
Plus particulièrement, la première surface de maintien 11 comporte une pluralité de premiers aimants de répulsion orientés selon la première polarité vers la périphérie du deuxième mobile récepteur 2.More particularly, the first holding
Dans la variante illustrée aux
Dans la variante illustrée aux
Ces orientations particulières de magnétisation ne sont pas limitatives. Elles dépendent de l'espace disponible à l'intérieur de la montre, pour un positionnement optimal de la roue de passage. Si nécessaire, la direction de magnétisation peut être oblique, notamment selon une surface conique, ou autre.These particular orientations of magnetization are not limiting. They depend on the space available inside the watch, for optimal positioning of the wheel of passage. If necessary, the magnetization direction may be oblique, in particular according to a conical surface, or the like.
L'invention concerne encore un mécanisme d'horlogerie 500 comportant au moins un tel mécanisme séquenceur 100, et comportant des premiers moyens moteurs d'entraînement d'au moins un premier mobile bloqueur 1 d'un mécanisme séquenceur 100. Et, lorsque le deuxième mobile récepteur 2 d'un mécanisme séquenceur 100 n'est pas soumis à un couple moteur en concordance avec le couple moteur du premier mobile bloqueur correspondant, le mécanisme séquenceur 100 concerné est réalisé dans l'alternative mécanique selon la variante des
Plus particulièrement, le mécanisme d'horlogerie 500 comporte des deuxièmes moyens moteurs d'entraînement soumettant un deuxième mobile récepteur 2 d'un mécanisme séquenceur 100 à un couple autour du deuxième axe de pivotement D2, en concordance avec le couple moteur auquel est soumis le premier mobile bloqueur 1 correspondant du même mécanisme séquenceur 100, de façon à apporter un couple supplémentaire au premier mobile bloqueur 1 lors de la rotation du deuxième mobile récepteur 2 sous l'action d'une première surface d'entraînement 12 du premier mobile bloqueur 1.More particularly, the
L'invention concerne encore une pièce d'horlogerie, notamment une montre 1000, comportant au moins un tel mécanisme d'horlogerie 500, ou/et au moins un tel mécanisme séquenceur 100.The invention also relates to a timepiece, in particular a
Les figures illustrent des variantes de réalisation non limitatives.The figures illustrate non-limiting embodiments.
Les
Dans le cas des
Cette variante des
Les
Dans ce mode de réalisation, les aimants 21 de la roue de passage 2 sont en répulsion avec les aimants du premier mobile bloqueur 1. La position de la roue de passage 2 est donc bloquée dans une position stable, malgré le couple qui tend à la faire tourner (sens anti-horaire sur les
Les exemples des
Dans une variante de réalisation, le même principe peut être appliqué pour des aimants dont la magnétisation est orientée selon le premier axe de pivotement D1, tel que visible sur les
Naturellement, il est possible de renverser l'alternative magnétique, avec une position de maintien par attraction, et un entraînement par répulsion, toutefois cette solution peut comporter une instabilité, ce qui nécessite un couple important sur le premier mobile bloqueur pour composer une telle instabilité.Naturally, it is possible to reverse the magnetic alternative, with a position of retention by attraction, and a drive by repulsion, however this solution may include instability, which requires a large torque on the first mobile blocker to compose such instability.
Une première application concerne un apport temporaire de couple. En effet, dans de nombreux cas, les mouvements horlogers présentent des complications qui génèrent une consommation de couple supplémentaire, mais sur un intervalle de temps limité. C'est notamment le cas des mécanismes de quantième, simples, annuels, perpétuels, ou autres, qui consomment de l'énergie au mouvement lors du passage de la date, généralement à minuit. Cette consommation implique une baisse locale d'amplitude et donc une diminution de la réserve de marche.A first application concerns a temporary contribution of torque. Indeed, in many cases, watch movements have complications that generate additional torque consumption, but over a limited period of time. This is particularly the case of simple, annual, perpetual, or other calendar mechanisms, which consume energy during the movement of the date, usually at midnight. This consumption implies a local fall in amplitude and therefore a decrease in the power reserve.
Le système décrit peut constituer un apport de couple pendant cet intervalle temporel de surconsommation. Si la roue de passage 2 est liée à un barillet auxiliaire 3, de taille moins importante que le barillet principal, voire un simple ressort spiral ou une lame, ou un moyen de rappel élastique ou magnétique quelconque, et que le premier mobile bloqueur 1 est relié directement ou indirectement au rouage de finissage et dimensionné pour réaliser un tour en 24h (si la surconsommation intervient une seule fois en 24h), alors la roue de passage 2 pourra apporter un couple au premier mobile bloqueur 1 pendant l'intervalle de consommation et permettre ainsi d'éviter une baisse d'amplitude au passage de minuit et donc d'augmenter la réserve de marche. Cette variante est illustrée par la
Un autre exemple d'application concerne un variateur de couple. Dans le cas d'un système, notamment à différentiel, qui permet de modifier le rapport de couple entre deux mobiles, par exemple barillet/centre, pour notamment rendre le couple constant lors du désarmage du barillet, il est nécessaire de piloter en rotation un levier, ou un porte-satellite, pour que celui-ci adapte la position du satellite en fonction de l'état de désarmage du barillet. Ce levier est donc soumis à un couple qu'il est nécessaire de soutenir. La roue de passage 2, entraînée alternativement en rotation par le premier mobile bloqueur 1, qui est dans cet exemple le tambour de barillet, peut piloter ce levier qui lui transmet donc un couple non négligeable. La solution selon l'invention permet de maintenir la roue de passage 2 fixe, avec une consommation limitée malgré le couple auquel elle est soumise.Another example of application relates to a torque variator. In the case of a system, in particular differential, which allows to change the torque ratio between two mobile, for example barrel / center, in particular to make the torque constant when disarming the barrel, it is necessary to drive in rotation a lever, or a carrier-satellite, so that it adapts the position of the satellite according to the disarming state of the cylinder. This lever is therefore subject to a couple that is necessary to support. The
De très nombreuses applications sont possibles, notamment et non limitativement à :
- des mouvements horlogers comprenant une complication consommant du couple à intervalles réguliers, par exemple toutes les 24h;
- des mouvements horlogers comportant un variateur de couple, par exemple pour réaliser une force constante;
- des mouvements horlogers comprenant un système d'entraînement alternatif, par exemple came des années bissextiles dans un quantième perpétuel, pour diminuer la consommation de couple;
- des chronographes comportant un compteur minute ou compteur d'heure , à entraînement alternatif, pour diminuer la consommation de couple.
- watch movements comprising a complication that consumes torque at regular intervals, for example every 24 hours;
- watch movements comprising a torque variator, for example to achieve a constant force;
- watch movements comprising an alternative drive system, for example cam leap years in a perpetual calendar, to reduce the torque consumption;
- chronographs comprising a minute counter or hour counter, with alternating drive, to reduce the torque consumption.
Claims (23)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EP15201245.6A EP3182225B1 (en) | 2015-12-18 | 2015-12-18 | Timepiece sequencer mecanism with recess wheel having a reduced mechanical friction |
US15/355,567 US10558170B2 (en) | 2015-12-18 | 2016-11-18 | Wheel with reduced mechanical friction for timepieces |
JP2016234769A JP6431026B2 (en) | 2015-12-18 | 2016-12-02 | Wheels with reduced mechanical friction for watches |
CN201611165239.XA CN106896696B (en) | 2015-12-18 | 2016-12-16 | The wheel with reduced mechanical friction for clock and watch |
Applications Claiming Priority (1)
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EP15201245.6A EP3182225B1 (en) | 2015-12-18 | 2015-12-18 | Timepiece sequencer mecanism with recess wheel having a reduced mechanical friction |
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EP3182225A1 true EP3182225A1 (en) | 2017-06-21 |
EP3182225B1 EP3182225B1 (en) | 2018-08-08 |
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EP15201245.6A Active EP3182225B1 (en) | 2015-12-18 | 2015-12-18 | Timepiece sequencer mecanism with recess wheel having a reduced mechanical friction |
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US (1) | US10558170B2 (en) |
EP (1) | EP3182225B1 (en) |
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TW201842425A (en) * | 2017-04-18 | 2018-12-01 | 瑞士商百達翡麗日內瓦股份有限公司 | Timepiece mechanism |
CH714791B1 (en) * | 2018-03-16 | 2022-03-15 | Hublot Sa Geneve | Toothed member for a timepiece. |
EP3955063B1 (en) * | 2020-08-12 | 2024-07-03 | The Swatch Group Research and Development Ltd | Watch mechanism provided with a magnetic gear |
EP4141578A1 (en) * | 2021-08-30 | 2023-03-01 | The Swatch Group Research and Development Ltd | Timepiece mechanism provided with a magnetic gear |
US20240206905A1 (en) * | 2022-12-27 | 2024-06-27 | Most Cardio, Llc | System for axial positioning of a rotating shaft |
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2015
- 2015-12-18 EP EP15201245.6A patent/EP3182225B1/en active Active
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2016
- 2016-11-18 US US15/355,567 patent/US10558170B2/en active Active
- 2016-12-02 JP JP2016234769A patent/JP6431026B2/en active Active
- 2016-12-16 CN CN201611165239.XA patent/CN106896696B/en active Active
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US3500630A (en) * | 1966-07-27 | 1970-03-17 | Rene Beguin | Magnetic transmission system |
DE2361685A1 (en) * | 1972-12-11 | 1974-06-12 | Suisse Horlogerie | CALENDAR MECHANISM |
EP0394215A2 (en) * | 1989-04-17 | 1990-10-24 | Herwig Wutscher | Display assembly for a watch |
EP2887157A1 (en) * | 2013-12-23 | 2015-06-24 | The Swatch Group Research and Development Ltd. | Optimised escapement |
Also Published As
Publication number | Publication date |
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US10558170B2 (en) | 2020-02-11 |
CN106896696B (en) | 2019-03-29 |
JP6431026B2 (en) | 2018-11-28 |
EP3182225B1 (en) | 2018-08-08 |
US20170176946A1 (en) | 2017-06-22 |
JP2017111130A (en) | 2017-06-22 |
CN106896696A (en) | 2017-06-27 |
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