EP3179316A1 - Contactless cylinder escapement - Google Patents
Contactless cylinder escapement Download PDFInfo
- Publication number
- EP3179316A1 EP3179316A1 EP15199338.3A EP15199338A EP3179316A1 EP 3179316 A1 EP3179316 A1 EP 3179316A1 EP 15199338 A EP15199338 A EP 15199338A EP 3179316 A1 EP3179316 A1 EP 3179316A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic
- disk
- disc
- plate
- exhaust mechanism
- 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
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- 230000005291 magnetic effect Effects 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000861223 Issus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Classifications
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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
- G04B15/00—Escapements
- G04B15/02—Escapements permanently in contact with the regulating mechanism
- G04B15/04—Cylinder escapements
-
- 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/12—Adjusting; Restricting the amplitude of the lever or the like
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
-
- 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
- G04C3/104—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 of the pawl or the ratched-wheel
- G04C3/105—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 of the pawl or the ratched-wheel pawl and ratched-wheel being magnetically coupled
-
- 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
-
- 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
Definitions
- the invention relates to a watch exhaust mechanism, arranged to cooperate with torque supply means, and comprising a regulating mobile cooperating with an escape wheel.
- the invention also relates to a watch movement comprising such an escape mechanism.
- the invention also relates to a watch comprising at least one such movement.
- the invention relates to the field of watch exhaust mechanisms, and more particularly to the field of non-contact exhausts.
- the invention relates to a cylinder exhaust mechanism.
- the invention proposes to improve the cylinder magnetic escapement of the same inventor, reducing its sensitivity to external magnetic fields, and allowing a simpler and less expensive embodiment.
- the invention relates to a clock escapement mechanism according to claim 1.
- the invention also relates to a watch movement comprising such an escape mechanism.
- the invention also relates to a watch comprising at least one such movement.
- the invention relates to the field of watch exhaust mechanisms, and more particularly to the field of non-contact exhausts.
- the mechanical cylinder exhausts have the advantage of providing safety in case of excessive torque, especially during an impact, but their high level of friction significantly alters the performance of the exhaust.
- the present invention uses the same operating sequences as the international application WO 2015/096973 A2 which is based on a magnetic repulsion system, and which is incorporated herein by reference, but on a different basis from a magnetic attraction system.
- the figure 1 shows a cylindrical magnet M, above two metal plates A and B.
- the magnet M is attracted by a magnetic attraction force FA against the metal plate A on which it rests.
- This magnet M is pushed from right to left, that is to say from the plate A to the plate B, by an external force not shown; the arrow F illustrates the path that the magnet M would like to travel.
- the magnet M slides and will move closer to the edge A1 of the plate A, as visible on the figure 2 . It will not go further because there is an intermediate space E too wide between the edge A1 of the plate A and a first edge B1 of the plate B: the magnet M sees "empty" and, as it is attracted on the plate A, it does not cross this void of the intermediate space E.
- the plate B is displaced by a movement T, tending to substitute for the first edge B1 of the plate B a second edge B2, closer to the plate A, as visible on FIG. figure 3 , the space between the two plates A and B, from the point of view of the magnet M, is greatly reduced.
- the magnet M no longer perceives the "vacuum” and can therefore continue a movement from right to left, from the plate A to the plate B, crossing the reduced residual space ER.
- the figure 4 shows the magnet M above the plate B, to which it is attracted by a magnetic attraction force FB.
- the invention relates to a timepiece escapement mechanism 1, which is arranged to cooperate with means for providing torque, in particular drive motor means 2, such as a barrel or the like.
- This escapement mechanism 1 comprises a regulator wheel 5 cooperating with an escape wheel 3.
- this escapement mechanism 1 is a magnetic cylinder escapement. And its escape wheel 3 comprises actuators 6 on the periphery of a first disc 30.
- this first disc 30 is made of soft ferromagnetic material
- first impulse portions 61 and second stop portions 62 are therefore magnetized, or ferromagnetic, conductive of a magnetic field, and are each arranged to guide a magnetic field parallel to the pivot axes, and arranged to cooperate in attraction, through the first disc 30, with a second non magnetic soft ferromagnetic disc 7 secured to the regulator 5.
- first and second parts 61 and 62 are designated as the first magnetic part 61 and the second magnetic part 62, in the remainder of the present description, whatever their embodiment.
- This mechanism 1 comprises a ferromagnetic conductive plate 8, under the first disc 30 and without contact with it, having a cutout 80 surrounding the periphery 70 of the second disc 7 without contact with a variable gap E.
- This plate 8 closes a magnetic circuit comprising such an actuator 6, the first disk 30, the second disk 7, and a structure 34 in which the exhaust wheel 3 pivots and which carries the plate 8.
- this escapement mechanism 1 comprises at least one escape wheel 3, which is subjected to a pivoting torque, of moment less than or equal to a nominal moment, around a first pivot axis D1, under action of such torque supply means.
- This exhaust mechanism 1 comprises a regulator or resonator member 4 integral with a regulating wheel 5, preferably pivotally mounted around a second real or virtual pivot axis D2.
- This regulator or resonator member 4 is in particular of the spring-balance type or the like.
- the escapement mechanism 1 constitutes a magnetic cylinder escapement, and, as visible on the Figures 5 and 6 , the escape wheel 3 comprises a plurality of such actuators 6, which are regularly spaced on the periphery of a first disk 30, in particular but not limited to ferromagnetic soft, magnetic field conductor pivotally integral with the escape wheel 3.
- Each of these actuators 6 comprises magnetic parts, and is arranged to cooperate in attraction, through the first disk 30, with at least one second disk 7 that includes the regulating mobile 5, and pivotally integral therewith.
- This second disc 7 is ferromagnetic soft, it is not magnetized.
- each actuator 6 comprises at least: a first magnetic part 61, called a pulse magnet, and a second magnetic part 62, called a stop magnet, which generate or guide magnetic fields substantially of the same direction and of the same direction, substantially parallel to the first pivot axis D1 of the escape wheel 3.
- these actuators 6 further comprise mechanical stops 9.
- the first magnetic portion 61, the second magnetic portion 62, and the mechanical stop 9 eventual follow one another, on a substantially equal radius with respect to the first pivot axis D1.
- the exhaust mechanism 1 comprises a ferromagnetic conductive plate 8, disposed under the first disk 30, and without contact with it.
- this plate 8 comprises a cutout 80 which surrounds, without contact with it, the periphery 70 of the second disk 7, so as to provide an air gap between the plate 8 and the second disk 7.
- the escape wheel 3 has a shaft portion 31, pivoted in bearings 32 and 33 of a structure 34. And the relative arrangement of the first disk 30, the actuators 6, the second disk 7, the plate 8, and of the structure 34, is such that the magnetic circuit can be closed in a schematic interrupted line under the reference B of the figure 5 .
- the regulator 5 comprises a truncated crown 50, non-ferromagnetic, which constitutes a complementary mechanical stop.
- the second disk 7 comprises a first peripheral zone 71 defining with the plate 8 a first gap E1 greater than a second gap E2 existing between the plate 8 and a second peripheral zone 72 connected to the first zone 71.
- the actuators 6, and the first gap E1, and the second gap E2 are dimensioned so that a first magnetic portion 61 can cross only the second air gap E2, and is blocked by the first gap E1, according to the principle of the elementary brick of operation, explained above.
- the first zone 71 is a cylindrical sector of first radius R1 around of the second pivot axis D2, which is coaxial with the second zone 72 which is a cylindrical sector of second radius R2.
- the truncated crown 50 superimposes the first zone 71, and its opening corresponds to the second zone 72.
- the regulating member 4 is in turn devoid of magnet.
- the state of the system is as follows: the escape wheel 3, subject to the torque transmitted by the barrel, tends to rotate clockwise, but is here at a standstill. The balance also rotates clockwise, under the effect of the return torque of the spiral.
- the first magnetic pulse part 61 of a first actuator 6 is, facing the first region 71 of the second disk 7, at a first air gap E1, because it is forced by the escape wheel 3 to exit an upstream portion 8A of the ferromagnetic plate 8.
- the largest part of the same first actuator 6, constituting the second magnetic stop part 62, has a greater magnetic force and does not leave the ferromagnetic plate 8.
- the first magnetic pulse portion 61 is at a first widest gap E1, into which it has penetrated, and the second magnetic stop portion 62 does not pass.
- the actuator 6 concerned is stopped at the edge of the gap E.
- the figure 8 illustrates the beginning of the time pulse: the pendulum passes through the neutral point, where the return moment of the hairspring is zero, and the first magnetic pulse part 61 will start to apply a pulse to the balance by magnetic attraction of the second disk 7. Exhaust wheel 3 is still at a standstill. The time shift of the pendulum is illustrated by the arrow DB. It can be seen that the second zone 72 of the second disk 71 approaches the first magnetic pulse part 61.
- the figure 9 shows the end of the time pulse: the first magnetic pulse part 61 attracts the balance and closes the air gap cooperating with the second zone 72 and the second gap E2, and thus opens the way to the second magnetic stop part 62, which can cross this second gap E2.
- the escape wheel 3 is still stopped, but will start to turn clockwise.
- the magnetic attraction pulse FI is comparable to a constant force.
- the arrows FB and FR indicate the path already traveled by the balance wheel and the escape wheel respectively.
- the figure 10 illustrates the beginning of the alternation of the balance and the rotation of the escape wheel: the rocker rotates under the effect of the pulse, and the escape wheel 3 advance.
- the first actuator 6, which has crossed the gap E, is now superimposed on the second disk 70, while a second actuator 6, which was previously superimposed on the second disk 6, is now approaching at the level of the gap E, but between the second disk 7 and a downstream portion 8B of the ferromagnetic plate 8.
- the figure 11 shows the rotation of the balance under the effect of the pulse, and the escape wheel 3 which is stopped by the second magnetic stop portion 62 of the second actuator 6 inside the ring 50, the first magnetic part pulse 61 of the second actuator 8 covering the first gap E1 on the side of the downstream portion 8B. It is understood that each actuator 6 plays a role equivalent to that of a tooth of the escape wheel in a conventional mechanical escapement.
- the figure 12 corresponds to the maximum amplitude of the balance wheel, the escape wheel 3 is still at a standstill.
- the figure 13 shows the counterclockwise rotation of the balance wheel, the escape wheel being always at a standstill.
- the figure 14 shows the continued counterclockwise rotation of the balance, which tends to bring the second zone 72 of the second disk 7, the second actuator 6 still waiting for passage to the downstream portion 8B.
- the figure 15 shows the situation at the instant before the beginning of the pulse, where the second zone 72 of the second disk 7 arrives at the first magnetic pulse portion 61 of the second actuator 6.
- the escape wheel is still at the 'stop.
- the figure 16 shows the end of the pulse printed by the first pulse magnetic portion 61 of the second actuator 6.
- the escape wheel 3 begins to rotate.
- the figure 17 shows the escape wheel 3 which is stopped, after turning.
- the second actuator 6 has crossed the passage between the second disc 7 and the downstream part 8B, above which it is now located, and a third actuator 6 is at the interface between the upstream portion 8A and the second disc 7 , and is stopped, only its first pulse magnetic portion 61 being above the gap E1, while its second magnetic stop portion 62 can not pass.
- the figure 18 shows the continued anti-clockwise rotation of the balance wheel, the escape wheel being stopped.
- the figure 19 shows the clockwise rotation of the balance after the reversal of direction, the escape wheel is always stopped, blocked by the third actuator 6.
- the figure 20 shows the continued clockwise rotation of the balance, the second zone 72 is close to the third actuator 6, and the escape wheel 3 is stopped.
- the figure 21 shows the beginning of the hour pulse, given by the first pulse magnetic portion 61 of the third actuator 6.
- the escape wheel is still at a standstill.
- the figure 22 shows the role of the mechanical stops 9 and complementary mechanical stop 50, absorbing the printed torque to the escape wheel.
- the invention also relates to a watch movement 100 comprising such an escape mechanism.
- the invention also relates to a watch 200 comprising at least one such movement 100.
- the magnetic attraction cylinder escapement according to the invention presents an advance on the repulsion magnetic cylinder escapement because it is less sensitive to external magnetic fields, and is simpler to achieve.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Micromachines (AREA)
- Electromechanical Clocks (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Mécanisme d'échappement (1) magnétique à cylindre, comportant un mobile régulateur (5) coopérant avec une roue d'échappement (3) comportant des actionneurs (6) en périphérie d'un premier disque (30), chacun comportant une première partie (61) d'impulsion, et une deuxième partie (62) d'arrêt, générant ou guidant des champs magnétiques parallèlement aux axes de pivotement, et agencé pour coopérer en attraction, au travers dudit premier disque (30), avec un deuxième disque (7) ferromagnétique doux non aimanté solidaire dudit mobile régulateur (5), ledit mécanisme (1) comportant une plaque (8) conductrice ferromagnétique, sous et sans contact avec ledit premier disque (30), comportant une découpe (80) entourant sans contact la périphérie (70) dudit deuxième disque (7) avec un entrefer (E) variable, et fermant un circuit magnétique comportant un actionneur (6), ledit premier disque (30), ledit deuxième disque (7), et une structure (34) dans laquelle pivote ladite roue d'échappement (3) et qui porte ladite plaque (8).Magnetic cylinder exhaust mechanism (1), comprising a regulating wheel (5) cooperating with an escape wheel (3) comprising actuators (6) on the periphery of a first disk (30), each comprising a first part (61), and a second stop portion (62), generating or guiding magnetic fields parallel to the pivot axes, and arranged to cooperate in attraction, through said first disk (30), with a second disk. (7) ferromagnetic soft unmagnetized integral with said movable regulator (5), said mechanism (1) comprising a ferromagnetic conductive plate (8), under and without contact with said first disc (30), having a cutout (80) surrounding without contact the periphery (70) of said second disk (7) with a variable gap (E), and closing a magnetic circuit comprising an actuator (6), said first disk (30), said second disk (7), and a structure (34); ) in which pivots ladi the escape wheel (3) and which carries said plate (8).
Description
L'invention concerne un mécanisme d'échappement d'horlogerie, agencé pour coopérer avec des moyens de fourniture de couple, et comportant un mobile régulateur coopérant avec une roue d'échappement.The invention relates to a watch exhaust mechanism, arranged to cooperate with torque supply means, and comprising a regulating mobile cooperating with an escape wheel.
L'invention concerne encore un mouvement d'horlogerie comportant un tel mécanisme d'échappement.The invention also relates to a watch movement comprising such an escape mechanism.
L'invention concerne encore une montre comportant au moins un tel mouvement.The invention also relates to a watch comprising at least one such movement.
L'invention concerne le domaine des mécanismes d'échappement d'horlogerie, et, plus particulièrement, le domaine des échappements sans contact.The invention relates to the field of watch exhaust mechanisms, and more particularly to the field of non-contact exhausts.
L'invention concerne un mécanisme d'échappement à cylindre.The invention relates to a cylinder exhaust mechanism.
Le document
L'invention se propose de perfectionner l'échappement magnétique à cylindre du même inventeur, en réduisant sa sensibilité aux champs magnétiques externes, et en permettant une réalisation plus simple et moins coûteuse.The invention proposes to improve the cylinder magnetic escapement of the same inventor, reducing its sensitivity to external magnetic fields, and allowing a simpler and less expensive embodiment.
A cet effet, l'invention concerne un mécanisme d'échappement d'horlogerie selon la revendication 1.For this purpose, the invention relates to a clock escapement mechanism according to claim 1.
L'invention concerne encore un mouvement d'horlogerie comportant un tel mécanisme d'échappement.The invention also relates to a watch movement comprising such an escape mechanism.
L'invention concerne encore une montre comportant au moins un tel mouvement.The invention also relates to a watch comprising at least one such movement.
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 :
- les
figures 1 à 4 représentent, de façon schématisée, et en perspective, les éléments constituant une brique élémentaire de fonctionnement, et illustrent le principe de l'invention; - les
figures 5 et 6 illustrent, en coupe et en perspective, un mécanisme d'échappement d'horlogerie selon l'invention, bâti sur ce principe, et - les
figures 7 à 21 représentent les différentes étapes successives de fonctionnement, tandis que lafigure 22 concerne le cas de l'application d'un couple trop élevé, par exemple lors d'un choc, et le rôle des butées mécaniques que comporte le mécanisme selon l'invention; - la
figure 23 est un schéma-blocs représentant une montre comportant un mouvement d'horlogerie qui comporte lui-même un tel mécanisme d'échappement.
- the
Figures 1 to 4 schematically represent, in perspective, the elements constituting an elementary operating brick, and illustrate the principle of the invention; - the
Figures 5 and 6 illustrate, in section and in perspective, a clock escapement mechanism according to the invention, built on this principle, and - the
Figures 7 to 21 represent the different successive stages of operation, while thefigure 22 relates to the case of the application of a too high torque, for example during an impact, and the role of mechanical stops that includes the mechanism according to the invention; - the
figure 23 is a block diagram representing a watch having a watch movement which itself comprises such an escape mechanism.
L'invention concerne le domaine des mécanismes d'échappement d'horlogerie, et, plus particulièrement, le domaine des échappements sans contact.The invention relates to the field of watch exhaust mechanisms, and more particularly to the field of non-contact exhausts.
Les échappements à cylindre mécanique présentent l'avantage d'assurer une sécurité en cas de couple trop important, notamment lors d'un choc, mais leur niveau de frottements élevé altère de façon importante le rendement de l'échappement.The mechanical cylinder exhausts have the advantage of providing safety in case of excessive torque, especially during an impact, but their high level of friction significantly alters the performance of the exhaust.
La présente invention reprend les mêmes séquences de fonctionnement que la demande internationale
Le principe, dit « brique élémentaire de fonctionnement », basé sur l'attraction magnétique est illustré aux
La
Cet aimant M est poussé de droite à gauche, c'est-à-dire de la plaque A vers la plaque B, par une force extérieure non illustrée ; la flèche F illustre le chemin que l'aimant M aimerait parcourir.This magnet M is pushed from right to left, that is to say from the plate A to the plate B, by an external force not shown; the arrow F illustrates the path that the magnet M would like to travel.
Sous l'action de cette force extérieure, l'aimant M glisse et va se rapprocher du bord A1 de la plaque A, tel que visible sur la
Si on déplace la plaque B par un mouvement T, tendant à substituer au premier bord B1 de la plaque B un deuxième bord B2, plus proche de la plaque A, tel que visible sur la
L'aimant M ne perçoit plus le « vide » et peut donc continuer un déplacement de droite à gauche, de la plaque A vers la plaque B, en franchissant l'espace réduit résiduel ER.The magnet M no longer perceives the "vacuum" and can therefore continue a movement from right to left, from the plate A to the plate B, crossing the reduced residual space ER.
La
L'invention concerne un mécanisme d'échappement 1 d'horlogerie, qui est agencé pour coopérer avec des moyens de fourniture de couple, notamment de moyens moteurs d'entraînement 2, tel qu'un barillet ou similaire.The invention relates to a timepiece escapement mechanism 1, which is arranged to cooperate with means for providing torque, in particular drive motor means 2, such as a barrel or the like.
Ce mécanisme d'échappement 1 comporte un mobile régulateur 5 coopérant avec une roue d'échappement 3.This escapement mechanism 1 comprises a
Selon l'invention, ce mécanisme d'échappement 1 est un échappement magnétique à cylindre. Et sa roue d'échappement 3 comporte des actionneurs 6 en périphérie d'un premier disque 30. Dans une réalisation particulière de l'invention, ce premier disque 30 est en matériau ferromagnétique douxAccording to the invention, this escapement mechanism 1 is a magnetic cylinder escapement. And its
Chacun des actionneurs 6 comporte une première partie 61 d'impulsion, et une deuxième partie 62 d'arrêt. Ces actionneurs 6 sont composés de parties magnétiques, qui peuvent être réalisées de deux façons :
- avec un aimant ;
- ou comme guides de champs magnétiques issus d'aimants disposés dans une zone qui comporte de l'espace disponible à cet effet, par exemple à proximité de l'axe de rotation de la roue d'échappement, ces champs étant ainsi guidés là où on veut que l'actionneur soit.
- with a magnet;
- or as magnetic field guides derived from magnets arranged in an area that includes space available for this purpose, for example near the axis of rotation of the escape wheel, these fields being thus guided where wants the actuator to be.
Ces premières parties 61 d'impulsion, et deuxièmes parties 62 d'arrêt sont donc aimantées, ou ferromagnétiques conductrices d'un champ magnétique, et sont agencées pour guider chacune un champ magnétique parallèlement aux axes de pivotement, et agencé pour coopérer en attraction, au travers du premier disque 30, avec un deuxième disque 7 ferromagnétique doux non aimanté solidaire du mobile régulateur 5.These
On dénomme ces première et deuxième parties 61 et 62 comme première partie magnétique 61 et deuxième partie magnétique 62, dans la suite de la présente description, quel que soit leur mode de réalisation.These first and
Ce mécanisme 1 comporte une plaque 8 conductrice ferromagnétique, sous le premier disque 30 et sans contact avec lui, comportant une découpe 80 entourant sans contact la périphérie 70 du deuxième disque 7 avec un entrefer E variable. Cette plaque 8 fermant un circuit magnétique comportant un tel actionneur 6, le premier disque 30, le deuxième disque 7, et une structure 34 dans laquelle pivote la roue d'échappement 3 et qui porte la plaque 8.This mechanism 1 comprises a ferromagnetic
Plus particulièrement, ce mécanisme d'échappement 1 comporte au moins une roue d'échappement 3, qui est soumise à un couple de pivotement, de moment inférieur ou égal à un moment nominal, autour d'un premier axe de pivotement D1, sous l'action de tels moyens de fourniture de couple.More particularly, this escapement mechanism 1 comprises at least one
Ce mécanisme d'échappement 1 comporte un organe régulateur ou résonateur 4 solidaire d'un mobile régulateur 5, de préférence monté pivotant autour d'un deuxième axe de pivotement réel ou virtuel D2. Cet organe régulateur ou résonateur 4 est notamment de type balancier-spiral ou similaire.This exhaust mechanism 1 comprises a regulator or
Selon l'invention, le mécanisme d'échappement 1 constitue un échappement à cylindre magnétique, et, tel que visible sur les
Ce deuxième disque 7 est ferromagnétique doux, il n'est pas aimanté.This
De préférence, dans la réalisation non limitative illustrée par les figures, chaque actionneur 6 comporte au moins: une première partie magnétique 61, dite aimant d'impulsion, et une deuxième partie magnétique 62, dite aimant d'arrêt, qui génèrent ou guident des champs magnétiques sensiblement de même direction et de même sens, sensiblement parallèle au premier axe de pivotement D1 de la roue d'échappement 3.Preferably, in the nonlimiting embodiment illustrated by the figures, each
De façon plus particulière, ces actionneurs 6 comportent encore des butées mécaniques 9. La première partie magnétique 61, la deuxième partie magnétique 62, et la butée mécanique 9 éventuelle se succèdent, sur un rayon sensiblement égal par rapport au premier axe de pivotement D1.More particularly, these
Sensiblement dans le même plan que le deuxième disque 7, le mécanisme d'échappement 1 comporte une plaque 8 conductrice ferromagnétique, disposée sous le premier disque 30, et sans contact avec lui. De préférence, cette plaque 8 comporte une découpe 80 qui entoure, sans contact avec elle, la périphérie 70 du deuxième disque 7, de façon à ménager un entrefer entre la plaque 8 et le deuxième disque 7.Substantially in the same plane as the
La roue d'échappement 3 comporte une partie arbrée 31, pivotée dans des paliers 32 et 33 d'une structure 34. Et l'agencement relatif du premier disque 30, des actionneurs 6, du deuxième disque 7, de la plaque 8, et de la structure 34, est tel que le circuit magnétique peut se refermer selon une boucle schématisée en trait interrompu sous le repère B de la
Quand les actionneurs 6 comportent des butées mécaniques 9, le mobile régulateur 5 comporte une couronne tronquée 50, non ferromagnétique, qui constitue une butée mécanique complémentaire.When the
De façon propre à l'invention, le deuxième disque 7 comporte une première zone 71 périphérique définissant avec la plaque 8 un premier entrefer E1 plus grand qu'un deuxième entrefer E2 existant entre la plaque 8 et une deuxième zone 72 périphérique connexe à la première zone 71. Et les actionneurs 6, et le premier entrefer E1, et le deuxième entrefer E2, sont dimensionnés pour qu'une première partie magnétique 61 ne puisse franchir que le deuxième entrefer E2, et soit bloquée par le premier entrefer E1, selon le principe de la brique élémentaire de fonctionnement, exposé plus haut.According to the invention, the
Plus particulièrement, et tel que visible dans la réalisation non limitative des figures, la première zone 71 est un secteur cylindrique de premier rayon R1 autour du deuxième axe de pivotement D2, qui est coaxial avec la deuxième zone 72 qui est un secteur cylindrique de deuxième rayon R2.More particularly, and as visible in the nonlimiting embodiment of the figures, the
De préférence, et non limitativement, la couronne tronquée 50 vient en superposition de la première zone 71, et son ouverture correspond à la deuxième zone 72.Preferably, and not limitation, the
L'organe régulateur 4 est quant à lui dépourvu d'aimant.The regulating
La cinématique est illustrée par les
Sur la
La première partie magnétique d'impulsion 61 d'un premier actionneur 6 se présente, face à la première zone 71 du deuxième disque 7, au niveau d'un premier entrefer E1, car elle est forcée par la roue d'échappement 3 à sortir d'une partie amont 8A de la plaque ferromagnétique 8.The first
La plus grosse partie du même premier actionneur 6, constituant la deuxième partie magnétique d'arrêt 62, a une plus grande force magnétique et ne sort pas de la plaque ferromagnétique 8.The largest part of the same
Dans cette position, la première partie magnétique d'impulsion 61 est au niveau d'un premier entrefer E1 le plus large, dans lequel il a pénétré, et la deuxième partie magnétique d'arrêt 62 ne passe pas. L'actionneur 6 concerné est donc stoppé en bordure de l'entrefer E.In this position, the first
La
La
L'impulsion FI par attraction magnétique est assimilable à une force constante.The magnetic attraction pulse FI is comparable to a constant force.
Sur chacune des figures, les flèches FB et FR indiquent le chemin déjà parcouru par le balancier et la roue d'échappement respectivement.In each of the figures, the arrows FB and FR indicate the path already traveled by the balance wheel and the escape wheel respectively.
La
La
La
La
La
La
La
La
La
La
La
La
Le cycle se poursuit par retour à la
On comprend que, sur cette représentation très schématique, les impulsions ne sont pas données exactement pour la même position angulaire du plateau, l'homme du métier sait effectuer un tracé adéquat de l'échappement pour les mettre en concordance.It is understood that, in this very schematic representation, the pulses are not given exactly for the same angular position of the plate, the skilled person knows how to make an adequate layout of the exhaust to match them.
En cas de couple trop élevé, la
L'invention concerne encore un mouvement d'horlogerie 100 comportant un tel mécanisme d'échappement.The invention also relates to a
L'invention concerne encore une montre 200 comportant au moins un tel mouvement 100.The invention also relates to a
L'échappement magnétique à cylindre par attraction selon l'invention présente un progrès sur l'échappement à cylindre magnétique par répulsion, car il est moins sensible aux champs magnétiques externes, et il est plus simple à réaliser.The magnetic attraction cylinder escapement according to the invention presents an advance on the repulsion magnetic cylinder escapement because it is less sensitive to external magnetic fields, and is simpler to achieve.
Claims (10)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15199338.3A EP3179316B1 (en) | 2015-12-10 | 2015-12-10 | Contactless cylinder escapement |
TW105131378A TWI691819B (en) | 2015-12-10 | 2016-09-29 | Timepiece escapement mechanism, timepiece movement and watch |
US15/286,022 US9915922B2 (en) | 2015-12-10 | 2016-10-05 | Contactless cylinder escapement |
JP2016216229A JP6236133B2 (en) | 2015-12-10 | 2016-11-04 | Non-contact cylinder escapement |
KR1020160166769A KR101892823B1 (en) | 2015-12-10 | 2016-12-08 | Contactless cylinder escapement |
CN201611127522.3A CN106919035B (en) | 2015-12-10 | 2016-12-09 | Contactless cylinder escapement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15199338.3A EP3179316B1 (en) | 2015-12-10 | 2015-12-10 | Contactless cylinder escapement |
Publications (2)
Publication Number | Publication Date |
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EP3179316A1 true EP3179316A1 (en) | 2017-06-14 |
EP3179316B1 EP3179316B1 (en) | 2021-09-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15199338.3A Active EP3179316B1 (en) | 2015-12-10 | 2015-12-10 | Contactless cylinder escapement |
Country Status (6)
Country | Link |
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US (1) | US9915922B2 (en) |
EP (1) | EP3179316B1 (en) |
JP (1) | JP6236133B2 (en) |
KR (1) | KR101892823B1 (en) |
CN (1) | CN106919035B (en) |
TW (1) | TWI691819B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3182225B1 (en) * | 2015-12-18 | 2018-08-08 | Montres Breguet S.A. | Timepiece sequencer mecanism with recess wheel having a reduced mechanical friction |
Citations (4)
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GB671360A (en) * | 1948-07-28 | 1952-05-07 | Smith & Sons Ltd S | Magnetic escapements for timepieces |
US3183426A (en) * | 1962-02-14 | 1965-05-11 | Cons Electronics Ind | Magnetically coupled constant speed system |
CH709019A2 (en) * | 2013-12-23 | 2015-06-30 | Swatch Group Res & Dev Ltd | Mechanism of magnetic or electrostatic exhaust. |
WO2015096973A2 (en) | 2013-12-23 | 2015-07-02 | Nivarox-Far S.A. | Escapement mechanism having a contactless timepiece cylinder |
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DE873822C (en) * | 1941-12-16 | 1953-04-16 | Reinhard Straumann | Friction-free oscillating spring regulator for clockworks |
US3410083A (en) * | 1966-02-04 | 1968-11-12 | Army Usa | Timing mechanism |
CH538070A (en) * | 1970-10-22 | 1973-07-31 | Siemens Ag | Arrangement for converting a reciprocating movement of a first apparatus part into a step-by-step rotational movement in a specific direction of rotation of a second apparatus part |
FR2233738A1 (en) * | 1973-06-14 | 1975-01-10 | Epee Et Cie Frederic L | Oscillatory to stepped rotational movement conversion - rotation from balance wheel magnetically coupled to second axle |
DE602005005633T2 (en) * | 2005-03-30 | 2009-04-16 | Montres Breguet S.A. | Chronometer escapement for watches |
EP1710636A1 (en) * | 2005-04-06 | 2006-10-11 | Daniel Rochat | Escapement for a watch |
CH702188B1 (en) * | 2009-11-02 | 2017-12-29 | Lvmh Swiss Mft Sa | A regulating organ for a wristwatch, and a timepiece comprising such a regulating organ. |
CH702187A2 (en) * | 2009-11-02 | 2011-05-13 | Lvmh Swiss Mft Sa | Regulating element for wristwatch and timepiece including such a regulating organ. |
EP2400352A1 (en) * | 2010-06-22 | 2011-12-28 | The Swatch Group Research and Development Ltd. | Escapement system for a timepiece |
JP6057659B2 (en) * | 2012-10-18 | 2017-01-11 | セイコーインスツル株式会社 | Constant torque mechanism for watch, movement and mechanical watch equipped with the mechanism |
EP2874023A1 (en) * | 2013-11-13 | 2015-05-20 | ETA SA Manufacture Horlogère Suisse | Timepiece comprising a decoupling between the means for transmitting power and the counting means |
EP2911015B1 (en) * | 2013-12-23 | 2017-08-23 | The Swatch Group Research and Development Ltd. | Natural escapement |
EP2887157B1 (en) | 2013-12-23 | 2018-02-07 | The Swatch Group Research and Development Ltd. | Optimised escapement |
US9465366B2 (en) | 2013-12-23 | 2016-10-11 | The Swatch Group Research And Development Ltd | Angular speed regulating device for a wheel set in a timepiece movement including a magnetic escapement mechanism |
EP2889704B1 (en) | 2013-12-23 | 2017-11-08 | Nivarox-FAR S.A. | Contactless cylinder escapement mechanism |
CN106030422B (en) * | 2013-12-23 | 2018-10-16 | 斯沃奇集团研究和开发有限公司 | Device for the angular frequency for adjusting the movement parts in the watch and clock movement for including magnetic release catch |
-
2015
- 2015-12-10 EP EP15199338.3A patent/EP3179316B1/en active Active
-
2016
- 2016-09-29 TW TW105131378A patent/TWI691819B/en active
- 2016-10-05 US US15/286,022 patent/US9915922B2/en active Active
- 2016-11-04 JP JP2016216229A patent/JP6236133B2/en active Active
- 2016-12-08 KR KR1020160166769A patent/KR101892823B1/en active IP Right Grant
- 2016-12-09 CN CN201611127522.3A patent/CN106919035B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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GB671360A (en) * | 1948-07-28 | 1952-05-07 | Smith & Sons Ltd S | Magnetic escapements for timepieces |
US3183426A (en) * | 1962-02-14 | 1965-05-11 | Cons Electronics Ind | Magnetically coupled constant speed system |
CH709019A2 (en) * | 2013-12-23 | 2015-06-30 | Swatch Group Res & Dev Ltd | Mechanism of magnetic or electrostatic exhaust. |
WO2015096973A2 (en) | 2013-12-23 | 2015-07-02 | Nivarox-Far S.A. | Escapement mechanism having a contactless timepiece cylinder |
Also Published As
Publication number | Publication date |
---|---|
JP6236133B2 (en) | 2017-11-22 |
JP2017106901A (en) | 2017-06-15 |
CN106919035A (en) | 2017-07-04 |
KR101892823B1 (en) | 2018-10-04 |
KR20170069159A (en) | 2017-06-20 |
TW201727402A (en) | 2017-08-01 |
CN106919035B (en) | 2019-06-07 |
TWI691819B (en) | 2020-04-21 |
US20170168454A1 (en) | 2017-06-15 |
EP3179316B1 (en) | 2021-09-15 |
US9915922B2 (en) | 2018-03-13 |
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