EP2290476B1 - Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector - Google Patents

Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector Download PDF

Info

Publication number
EP2290476B1
EP2290476B1 EP09168113.0A EP09168113A EP2290476B1 EP 2290476 B1 EP2290476 B1 EP 2290476B1 EP 09168113 A EP09168113 A EP 09168113A EP 2290476 B1 EP2290476 B1 EP 2290476B1
Authority
EP
European Patent Office
Prior art keywords
corrector
frame
blade
flexible blade
adjustment means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP09168113.0A
Other languages
German (de)
French (fr)
Other versions
EP2290476A1 (en
Inventor
Simon Henein
Philippe Schwab
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre Suisse dElectronique et Microtechnique SA CSEM
Original Assignee
Centre Suisse dElectronique et Microtechnique SA CSEM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centre Suisse dElectronique et Microtechnique SA CSEM filed Critical Centre Suisse dElectronique et Microtechnique SA CSEM
Priority to EP09168113.0A priority Critical patent/EP2290476B1/en
Priority to US12/858,606 priority patent/US8672536B2/en
Publication of EP2290476A1 publication Critical patent/EP2290476A1/en
Application granted granted Critical
Publication of EP2290476B1 publication Critical patent/EP2290476B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs

Definitions

  • the present invention relates to a mechanical oscillator isochronism corrector comprising a frame, a flexible blade integral with the frame to act on the mechanical oscillator at a contact portion that has the blade.
  • the invention also relates to an exhaust mechanism provided with such a corrector.
  • the object of the invention is thus to provide a corrector of the isochronism defect induced by the variations of the engine torque of the mainspring, according to a principle of correction as a function of the amplitude.
  • the object of the invention is to be able to maintain a constant frequency of the oscillator, in its useful range of operation, based on the amplitude variations to correct an effect comparable to a non-linearity of the spring of recall.
  • the invention relates to a mechanical oscillator isochronism corrector according to claim 1
  • the corrector may advantageously comprise second means for adjusting the position of the contact portion, for adjusting the position in which the oscillator comes into contact with the flexible blade, said second adjustment means being integral with the frame and independent of the first adjustment means.
  • the invention also relates to an escapement mechanism equipped with a corrector as proposed above.
  • the isochronism corrector according to the invention is particularly applicable to the exhaust system described in the document EP 1736838 already quoted, in particular at figure 2a , which may be referred to for details on non-specific elements of the present invention.
  • the essential elements of such an escapement are represented on the figure 13 .
  • a pendulum 1 (partially shown) oscillating about an axis 2 is recognized and its return spring, or spiral spring, 3 fixed between an arm of the balance and a frame 4 of the watch.
  • a T-piece called anchor 6 can be associated with the balance, to form a two-stage oscillator.
  • an escapement wheel 5 is driven by two elastic strips 7 connected at one end to the balance 1 or to the anchor 6, and whose other end, or pallet, engages in the teeth (partially shown)
  • the term mechanical oscillator refers to the balance and its elastic return system or, the balance, its elastic system and the anchor 6, forming a second stage of the oscillator .
  • the driving torque of the mainspring decreases, resulting in a corresponding decrease in the oscillation amplitude of the oscillator (to maintain the balance with the dissipated power) and also of its frequency by the effect of the permanent contact.
  • the frequency varies linearly with the variations of the motor torque.
  • the principle of the invention consists in providing the oscillator with a corrector 10 having a frequency characteristic inverse to its own in the operating domain.
  • the figure 1 represents such a corrector. It comprises a frame 12, intended to allow the assembly of the corrector on the watch movement in which it participates. This frame 12 is rigid and ensures accurate positioning of the corrector with reference to the exhaust. It also makes it possible to serve as a reference for the mobile parts of the corrector which will be described below.
  • the corrector 10 also comprises a flexible blade 14, integral with the frame and defining a longitudinal axis AA. This flexible blade is intended to cooperate with the oscillator of the exhaust, in particular with its anchor 6, at the level of a pin 9 integral with the anchor, the figure 13 showing two.
  • the flexible blade 14 is connected to the frame by means of adjustment systems, which will now be described.
  • the blade 14 is embedded in a first intermediate element 16.
  • the latter comprises, according to the example illustrated in the drawing, a body 16a of parallelepipedal general shape, of axis parallel to the axis AA in neutral position.
  • This body 16a is provided with a transverse wing 16b, on which is embedded the flexible blade 14.
  • the body 16a is extended by a tail 16c to limit the displacement of the body 16a.
  • the first intermediate element 16 is secured to the frame 12, thanks to a first 18a and a second 18b elastic blades.
  • the first elastic blade 18a is integrally arranged on the flange 16b, in the extension of the flexible blade 14.
  • the second blade 18b is integrally arranged on the body 16a, on the opposite side to the flexible blade 14, in a direction perpendicular to the first blade 18a.
  • the resilient blades are connected to a second intermediate element, serving as a first reference element, with respect to which the resilient blades 18a and 18b can deform.
  • the resilient blades 18a and 18b associated with the first intermediate member 16 form a first deformable structure. More particularly, it is a resiliently deformable structure around a pivot to remote compliance center (better known as Remote Center Compliant flexure pivot), whose center of rotation is located at the intersection of the blades elastic.
  • the first reference element is provided with a preloading finger 22, positioned so as to exert stress on the flexible blade 14.
  • the first reference element being fixed during the deformations of the deformable structure, it is understood that the flexible blade 14 moves with reference to preload finger 22, which has the effect of modifying the stress exerted by the finger on the flexible blade 14, as illustrated by FIG. figure 5 .
  • a positioning system 24 of the deformable structure which will be described in detail later with reference to the figures 10 and 11 , is arranged to act on the first intermediate element 16 at the tail 16c, and move the flexible blade 14 around the center of rotation of the first deformable structure and thus adjust the prestressing it undergoes.
  • the second intermediate element 20 comprises, according to the example illustrated in the drawing, a body 20a of parallelepipedal general shape, of axis parallel to the axis AA in neutral position.
  • This body 20a is provided with a transverse wing 20b, on which is embedded the elastic blade 18a.
  • the body 20a is extended by a tail 20c to limit the movement of the body 20a.
  • the second intermediate element 20 is integral with the frame 12, thanks to a first 32a and a second 32b elastic blades.
  • the first elastic blade 32a is disposed on the flange 20b, in the extension of the flexible blade 14 and the elastic blade 18a.
  • the second blade 32b is disposed on the body 20a, on the opposite side to the flexible blade 14.
  • the elastic blades 32a and 32b are connected to the frame 12, serving as a second reference element, with respect to which the resilient blades 32a and 32b can be deform.
  • the resilient blades 32a and 32b associated with the second intermediate element 20 form a second deformable structure. More particularly, it is an elastically deformable structure around a pivot with a remote compliance center, whose center of rotation is located at the intersection of the elastic blades.
  • the elastic blade 32b is arranged in such a way that the center of rotation of the first deformable structure coincides with that of the second deformable structure.
  • the body 20 moves relative to the frame 12, integrally with the first elastic structure and the flexible blade 14.
  • the flexible blade 14 and particularly its end and its contact portion 14a intended to come into contact with the anchor 6, move with reference to the oscillator, which has the effect of modifying the position of the blade along the path followed by the pin 9 as shown in figure 6 . Note in passing that this setting has no influence on the prestressing force of the flexible blade 14 against the preload finger 22, since the blade 14 and the finger 22 move together.
  • a positioning system 34 of the second deformable structure which will be described in detail later with reference to the figures 10 , 11 and 12 , is arranged to act on the second intermediate element 20 at the tail 20, and move the flexible blade 14 and the first reference element around the center of rotation of the second deformable structure and thus adjust the point of contact between the pin 9 of the anchor 6 and the flexible blade 14. It will be noted in passing, on the figure 6 , the stroke limitation achieved through the tail 20c which bears on the frame 12.
  • FIGS 2 to 4 show different positions of the pin 9 with reference to the flexible blade 14, during oscillation of the oscillator, to better understand the action of flexible blade 14 on the oscillator of the movement.
  • the flexible blade 14 is in its neutral position, that is to say that the first and second resiliently deformable structures are not deformed by their respective positioning system.
  • the flexible blade 14 is in abutment against the pin 9 secured to the anchor 6. It should be noted that, for optimum operation of the corrector, and as shown particularly in FIG. figure 9 , the center of the circular path that follows the pin 9 is located in the plane of the flexible blade 14, of length L, at a distance L / 3 of its point of installation in the transverse wing 16b. The center of rotation of the anchor 6 coincides with the pivot centers of the elastically deformable structures.
  • the pin 9 is shown in the position it has when the anchor 6 is in the neutral position, that is to say with the spiral spring at rest. In this position, the flexible blade is detached from the preloading finger 22.
  • the pin 9 is shown in the position it has when the anchor 6 is in the extreme position to the right, with reference to the drawing. In this position, the flexible blade 14 is more detached from the preloading finger 22 than in the position of the figure 2 .
  • the pin 9 is shown in the position it has when the anchor 6 is in the extreme position to the left, with reference to the drawing. In this position, the flexible blade 14 bears against the preload stop and is no longer in contact with the pin 9 of the anchor 6.
  • the contact portion 14a of the blade 14 with the pin 9 follows a path substantially coincident with that of the pin 9, thus minimizing the relative friction between these two parts.
  • the adjustment of the contact angle between the pin 9 and the flexible blade 14, set by the second elastically deformable structure has no influence on the adjustment of the prestressing.
  • the preload adjustment also has little or no influence on the adjustment of the contact angle
  • the preloading finger 22 must be placed as close as possible to the contact portion. 14a of the flexible blade 14 intended to be in contact with the pin 9. In the first order, it can be considered that the adjustment of the prestressing and the adjustment of the contact angle are independent of one another.
  • the figure 7 proposes a second embodiment of the invention, in which the corrector according to the invention has, arranged symmetrically with respect to an axis parallel to the axis AA, two correctors such as that described above, each defining a first and a second parts.
  • the anchor 6 has two pins 9, which are shown in the neutral position.
  • the four elastically deformable structures are also presented in a neutral position, that is to say undeformed.
  • the flexible blades 14, the deformable structures and the frame 12 of the first and second parts form a flat piece, preferably made monolithically, by the known techniques of the skilled in the art, such as wire electroerosion, photolithography or deep etching.
  • the centers of rotation of the deformable structures can not be confused with the center of rotation of the anchor 6, as for the first embodiment.
  • the center of pivoting of the anchor 6 is positioned in the middle of the segment connecting the pivot centers of the deformable structures, on the one hand, of the first part of the corrector and, on the other hand, of the second part of the corrector.
  • the blades 14 are arranged closest to a line perpendicular to the trajectory of the oscillator.
  • the figure 8 illustrates a third adjustment that the isochronism corrector, in its simple or symmetrical versions, can present.
  • This adjustment makes it possible to act on the active length of the flexible blade 14 with reference to the oscillator. In other words, it acts on the distance between the point of insertion of the flexible blade 14 and the flexible blade support point 14 on the pin 9.
  • the frame 12 is mounted to move in translation in translation. reference to the oscillator, in a direction parallel to the axis AA. This can be simply obtained by oblongs 36 formed in the frame 12, within which clamping screws 38 (FIG. Fig. 12 ). As a result of this adjustment, the apparent rigidity of the flexible blade 14 is modified.
  • FIG 8 there is shown a shift of the corrector towards the oscillator, which shortens the active length of the flexible blade 14 and thus increases its apparent rigidity. Note that this setting has no effect on the prestressing force of the flexible blade 14 against the preload finger 22. In addition, if the angular position of the pin 9 for which the latter loses contact with the flexible blade 14 to course of its displacement to the left (with reference to the drawing) is located with reference to the preload finger 22, on a line parallel to the axis AA, then the adjustment of the rigidity shown in this figure has no influence either on the adjustment of the contact angle described in figure 6 . Finally, note that the setting shown on this figure 8 shifts the center of pivoting structures elastically deformable relative to the center of rotation of the anchor. This offset has the effect of slightly increasing the friction at the point of contact between the pin 9 of the anchor 6 and the flexible blade 14, but in acceptable proportions.
  • the isochronism corrector according to the invention can be machined in a metal alloy sheet with properties suitable for the manufacture of springs (it is possible to choose alloys based on copper and beryllium or carbon steel, known from the skilled person).
  • the different holes, tapping and milling are done first.
  • treatment is carried out by structural hardening.
  • the elastic structure is cut by wire EDM.
  • the silicon corrector can be made using the DRIE (Deep Reactive Ion Etching) technique.
  • the figures 10 and 11 represent the positioning systems for adjusting the deformation of deformable structures, advantageously used in an isochronous corrector according to the invention. The skilled person may consider using other positioning systems.
  • the figures particularly represent the positioning system 24 of the first deformable structure, but the positioning system 34 of the second deformable structure is quite similar.
  • each positioning system comprises two set screws 40 which ensure both the actual adjustment, that is to say the displacement of the elastically deformable structure, and the locking of its position.
  • the set screws 40 are screwed into studs 41, themselves fixed to the frame 12 of the corrector.
  • the tail 16c or 20c has a circular recess 42, so that the action of the conical portion of the needle cooperates effectively with the intermediate element 16 or 20.
  • the screws Needles 40 are eccentrically disposed with respect to the circular recess 42, offset from the shank side 16c or 20c.
  • the needle screws 40 exert a pressure only on the intermediate element 16 or 20 with which they cooperate.
  • the depression of the needle screw 40 with reference to the intermediate element 16 or 20 and therefore the radius of the cone at the contact with the recess 42 makes it possible to adjust the position of the intermediate element 16 or 20.
  • one of the screws 40 of a positioning system is slightly loosened, then the tail 16c or 20c is brought into contact with this screw 40 by slightly tightening the other screw 40.
  • the displacement can be estimated by means of an angular mark fixed directly on the clamping screws.
  • the adjustment of the deformable structures can be performed with a precision of the order of one micron.
  • the two screws acting at an intermediate element 16 or 20 are tightened, the position of this element is secured. It is particularly interesting to be able to adjust the position of the deformable structures and the locking of their positioning, by means of a single device, as well, it avoids any risk of changing the setting when locking.
  • figure 12 represents the corrector according to the invention in its symmetrical version, provided with positioning systems 24 and 34 of each elastically deformable structures. It can be seen that the screws of the adjustment systems are advantageously accessible from above, which, given the accuracy of the adjustments to be made, is an important advantage at the practical level, for the operations to be performed manually by a watchmaker.
  • an isochronous corrector offering particularly interesting adjustment facilities of its action on a mechanical oscillator.
  • its design allows an easy and precise realization, limiting the clutter generated in the watch movement.
  • a blade is a piece of flat, thin and flexible material. Flexibility can be achieved over the entire length of the blade or only in a limited portion. It is also conceivable to have a blade whose flexibility is obtained by a structure elastically around a pivot with a remote compliance center.
  • the figure 14 proposes such an arrangement, wherein each corrector portion has three structures with remote compliance center, two similar to those described above, and one to ensure the bending of the blade. It will be noted that, in a particularly advantageous manner, it is possible, in such a configuration, that the centers of rotation of the deformable structures coincide with the center of rotation of the anchor 6, as for the first embodiment described above. .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Micromachines (AREA)
  • Electric Clocks (AREA)

Description

Domaine techniqueTechnical area

La présente invention se rapporte à un correcteur d'isochronisme d'oscillateur mécanique comportant un bâti, une lame flexible solidaire du bâti pour agir sur l'oscillateur mécanique au niveau d'une portion de contact que présente la lame. L'invention concerne également un mécanisme d'échappement muni d'un tel correcteur.The present invention relates to a mechanical oscillator isochronism corrector comprising a frame, a flexible blade integral with the frame to act on the mechanical oscillator at a contact portion that has the blade. The invention also relates to an exhaust mechanism provided with such a corrector.

Etat de la techniqueState of the art

Les oscillateurs conventionnels qui équipent les garde-temps mécaniques comprennent, classiquement, un élément ressort, ou spiral, permettant le rappel en position neutre d'un élément régulateur, ou balancier. L'énergie dissipée par l'oscillation est compensée par l'application d'un couple moteur fourni par un ressort de charge, ou ressort de barillet. Cependant, ce couple d'entraînement exercé par le ressort de barillet varie au cours du temps en fonction de la charge (ou état de remontage) de ce dernier et, dans la plupart des garde-temps mécaniques, notamment lorsque le barillet est couplé directement aux rouages de la chaîne dynamique, cette variation a pour effet de modifier l'amplitude d'oscillation ainsi que, dans une certaine mesure, la période de l'oscillateur. Une telle modification peut se traduire, pour certaines réalisations, par une déviation d'une à plusieurs dizaines de secondes par jour.Conventional oscillators that equip mechanical timepieces conventionally comprise a spring element, or spiral, allowing the return to the neutral position of a regulating element, or balance. The energy dissipated by the oscillation is compensated by the application of a motor torque provided by a load spring, or barrel spring. However, this driving torque exerted by the mainspring varies over time depending on the load (or reassembly state) of the latter and, in most mechanical timepieces, especially when the cylinder is coupled directly. to the workings of the dynamic chain, this variation has the effect of modifying the amplitude of oscillation as well as, to a certain extent, the period of the oscillator. Such a modification can be translated, for some embodiments, by a deviation of one to several tens of seconds per day.

Pour compenser l'effet de la variation d'intensité du couple moteur, il a été proposé d'utiliser un dispositif appelé fusée (voir le «Dictionnaire professionnel illustré de l'horlogerie» de G. A. Berner), qui permet de régulariser la force motrice transmise au rouage par le ressort de barillet. Toutefois, un tel dispositif est difficilement miniaturisable et, pour cette raison, ne peut pas être réellement appliqué dans les montres-bracelets mécaniques.To compensate for the effect of motor torque variation, it has been proposed to use a device called a rocket (see GA Berner's "Professional Illustrated Dictionary of Watchmaking"), which helps to regulate the driving force. transmitted to the wheel by the mainspring. However, such a device is difficult to miniaturize and, for this reason, can not be really applied in mechanical wristwatches.

Un autre dispositif de correction a été décrit en relation avec la figure 7 de la demande de brevet européen EP 1736838 au nom de la demanderesse. Dans ce dernier document, il est proposé de faire agir le couple moteur du ressort de barillet sur un organe flexible, lequel contrôle la longueur active d'un élément qui participe à la constante d'oscillation de l'oscillateur mécanique.Another correction device has been described in connection with the figure 7 of the European patent application EP 1736838 in the name of the plaintiff. In this last document, it is proposed to make the driving torque of barrel spring on a flexible member, which controls the active length of an element that participates in the oscillation constant of the mechanical oscillator.

Comme dans le cas de la fusée, un tel dispositif n'est pas simple à mettre en oeuvre et, surtout, aucun des deux dispositifs ne permet de tenir compte des variations de couple qui seraient dues à des frottements existant, par exemple, au niveau des différentes pièces incluant l'oscillateur ainsi que les rouages de transmission du couple moteur à ce dernier.As in the case of the rocket, such a device is not simple to implement and, above all, neither of the two devices makes it possible to take into account the variations in torque that would be due to friction existing, for example, at the level of different parts including the oscillator as well as the gear trains of the engine torque to the latter.

En régime d'oscillation quasi-permanent, c'est-à-dire lorsque l'intensité du couple moteur varie suffisamment lentement par rapport à la période d'oscillation, on peut admettre que la variation de période induite est équivalente à celle qui serait induite par un couple de rappel non linéaire en fonction de la déflexion. Un tel défaut d'isochronisme peut être corrigé par une non linéarité inverse du ressort de rappel.In a quasi-permanent oscillation regime, that is to say when the intensity of the engine torque varies sufficiently slowly with respect to the oscillation period, it can be assumed that the induced period variation is equivalent to that which would be induced by a nonlinear booster torque depending on the deflection. Such an isochronism defect can be corrected by a non-linearity of the return spring.

L'invention a ainsi pour but de fournir un correcteur du défaut d'isochronisme induit par les variations du couple moteur du ressort de barillet, selon un principe de correction en fonction de l'amplitude.The object of the invention is thus to provide a corrector of the isochronism defect induced by the variations of the engine torque of the mainspring, according to a principle of correction as a function of the amplitude.

Plus généralement, le but de l'invention est de pouvoir maintenir une fréquence constante de l'oscillateur, dans son domaine utile de fonctionnement, en se basant sur les variations d'amplitude pour corriger un effet assimilable à une non-linéarité du ressort de rappel.More generally, the object of the invention is to be able to maintain a constant frequency of the oscillator, in its useful range of operation, based on the amplitude variations to correct an effect comparable to a non-linearity of the spring of recall.

Divulgation de l'inventionDisclosure of the invention

De manière plus précise, l'invention porte sur un correcteur d'isochronisme d'oscillateur mécanique selon la revendication 1More specifically, the invention relates to a mechanical oscillator isochronism corrector according to claim 1

Le correcteur peut avantageusement comporter des deuxièmes moyens de réglage de la position de la portion de contact, pour ajuster la position dans laquelle l'oscillateur entre au contact de la lame flexible, lesdits deuxièmes moyens de réglage étant solidaires du bâti et indépendants des premiers moyens de réglage.The corrector may advantageously comprise second means for adjusting the position of the contact portion, for adjusting the position in which the oscillator comes into contact with the flexible blade, said second adjustment means being integral with the frame and independent of the first adjustment means.

L'invention porte également sur un mécanisme d'échappement équipé d'un correcteur tel que proposé ci-dessus.The invention also relates to an escapement mechanism equipped with a corrector as proposed above.

D'autres caractéristiques avantageuses de l'invention sont définies dans les revendications.Other advantageous features of the invention are defined in the claims.

Brève description des dessinsBrief description of the drawings

L'invention apparaîtra plus clairement à la lecture de la description qui va suivre, faite en référence au dessin annexé, dans lequel:

  • la figure 1 représente une vue de dessus d'un correcteur selon l'invention, en position neutre, c'est-à-dire sans action des moyens de réglage,
  • les figures 2, 3 et 4 représentent également une vue de dessus d'un correcteur selon l'invention, en position neutre, mais dans différentes situations de coopération avec un organe oscillateur de l'échappement,
  • la figure 5 représente une vue de dessus d'un correcteur selon l'invention, avec une représentation volontairement exagérée de l'action des premiers moyens de réglage,
  • la figure 6 représente une vue de dessus d'un correcteur selon l'invention, avec une représentation volontairement exagérée de l'action des deuxièmes moyens de réglage,
  • la figure 7 montre un deuxième mode de réalisation d'un correcteur selon l'invention, en position neutre, en coopération avec un organe oscillateur de l'échappement,
  • la figure 8 représente une vue de dessus d'un correcteur selon l'invention, avec une représentation de l'action des troisièmes moyens de réglage,
  • la figure 9 est une vue schématique de la disposition géométrique de certains éléments du correcteur et de l'organe oscillateur de l'échappement,
  • les figures 10 et 11 illustrent plus particulièrement les systèmes de positionnement des moyens de réglage,
  • la figure 12 propose une vue de dessus d'un correcteur selon l'invention, de ses moyens de réglages incluant les systèmes de positionnement,
  • la figure 13 représente schématiquement un mécanisme d'échappement sur lequel peut s'intégrer avantageusement un correcteur d'isochronisme selon l'invention, et
  • la figure 14 propose une autre variante de réalisation d'un correcteur selon l'invention, particulièrement de la lame flexible.
The invention will become more clearly apparent on reading the description which follows, made with reference to the appended drawing, in which:
  • the figure 1 represents a top view of a corrector according to the invention, in neutral position, that is to say without action of the adjustment means,
  • the figures 2 , 3 and 4 also represent a view from above of a corrector according to the invention, in the neutral position, but in different situations of cooperation with an oscillator member of the exhaust,
  • the figure 5 represents a view from above of a corrector according to the invention, with a deliberately exaggerated representation of the action of the first adjustment means,
  • the figure 6 represents a view from above of a corrector according to the invention, with a deliberately exaggerated representation of the action of the second adjustment means,
  • the figure 7 shows a second embodiment of a corrector according to the invention, in neutral position, in cooperation with an oscillator member of the exhaust,
  • the figure 8 represents a view from above of a corrector according to the invention, with a representation of the action of the third adjustment means,
  • the figure 9 is a schematic view of the geometrical arrangement of certain elements of the corrector and of the oscillator member of the escapement,
  • the figures 10 and 11 more particularly illustrate the positioning systems of the adjustment means,
  • the figure 12 proposes a view from above of a corrector according to the invention, of its adjustment means including the positioning systems,
  • the figure 13 schematically represents an escape mechanism on which can advantageously integrate an isochronous corrector according to the invention, and
  • the figure 14 proposes another alternative embodiment of a corrector according to the invention, particularly of the flexible blade.

Mode(s) de réalisation de l'inventionMode (s) of realization of the invention

Le correcteur d'isochronisme selon l'invention est particulièrement applicable au système d'échappement décrit dans le document EP 1736838 , déjà cité, notamment à la figure 2a, auquel on pourra se référer pour avoir des détails sur des éléments non spécifiques à la présente invention. Les éléments essentiels d'un tel échappement sont représentés sur la figure 13.The isochronism corrector according to the invention is particularly applicable to the exhaust system described in the document EP 1736838 already quoted, in particular at figure 2a , which may be referred to for details on non-specific elements of the present invention. The essential elements of such an escapement are represented on the figure 13 .

On reconnaît un balancier 1 (partiellement représenté) oscillant autour d'un axe 2 et son ressort de rappel, ou ressort spiral, 3 fixé entre un bras du balancier et un bâti 4 de la montre. Une pièce en T appelée ancre 6 peut être associée au balancier, pour former un oscillateur à deux étages. Selon l'enseignement du document EP 1736838 , une roue d'échappement 5 est entraînée par deux lames élastiques 7 liées, par une extrémité, au balancier 1 ou à l'ancre 6, et dont l'autre extrémité, ou palette, s'engage dans les dents (partiellement représentées) de la roue d'échappement 5. Dans la présente invention, le terme d'oscillateur mécanique désigne le balancier et son système élastique de rappel ou, le balancier, son système élastique et l'ancre 6, formant un deuxième étage de l'oscillateur.A pendulum 1 (partially shown) oscillating about an axis 2 is recognized and its return spring, or spiral spring, 3 fixed between an arm of the balance and a frame 4 of the watch. A T-piece called anchor 6 can be associated with the balance, to form a two-stage oscillator. According to the teaching of the document EP 1736838 , an escapement wheel 5 is driven by two elastic strips 7 connected at one end to the balance 1 or to the anchor 6, and whose other end, or pallet, engages in the teeth (partially shown) In the present invention, the term mechanical oscillator refers to the balance and its elastic return system or, the balance, its elastic system and the anchor 6, forming a second stage of the oscillator .

En oscillant, sous l'impulsion d'un couple moteur dispensé par un ressort de barillet, le balancier-spiral entraîne en rotation la roue d'échappement 5 à un rythme qui doit être aussi régulier que possible, car il détermine la précision de la montre qu'il contrôle. Or, comme cela a été mentionné précédemment, les montres mécaniques et, plus particulièrement, celles équipées d'un système d'échappement tel qu'il vient d'être décrit, souffrent d'un défaut d'isochronisme pouvant se traduire par un écart de quelque dix secondes par jour pour une variation du couple moteur de dix pourcent, correspondant à une variation d'amplitude de cinq pourcent. Un tel écart tient au fait que, contrairement aux systèmes d'échappement libre, tels que ceux dits à ancre suisse, l'ancre 6 particulière du document EP précité est, par l'intermédiaire de ses lames élastiques 7, en contact permanent avec la roue d'échappement 5. Au cours de sa décharge, le couple moteur du ressort de barillet décroît, ce qui entraîne une diminution correspondante de l'amplitude d'oscillation de l'oscillateur (pour maintenir l'équilibre avec la puissance dissipée) et aussi de sa fréquence par l'effet du contact permanent. Pour de petites variations, correspondant au domaine de fonctionnement, on peut admettre que la fréquence varie linéairement avec les variations du couple moteur.By oscillating, under the impulse of a driving torque delivered by a mainspring, the sprung balance rotates the escapement wheel 5 at a rate which must be as regular as possible, since it determines the accuracy of the shows that he controls. However, as mentioned above, mechanical watches and, more particularly, those equipped with an exhaust system as just described, suffer from a defect of isochronism that can result in a difference about ten seconds a day for a variation of the engine torque of ten percent, corresponding to an amplitude variation of five percent. Such a difference is due to the fact that, unlike free escapement systems, such as those known as Swiss anchors, the particular anchor 6 of the above-mentioned EP document is, by means of its elastic blades 7, in permanent contact with the escape wheel 5. During its discharge, the driving torque of the mainspring decreases, resulting in a corresponding decrease in the oscillation amplitude of the oscillator (to maintain the balance with the dissipated power) and also of its frequency by the effect of the permanent contact. For small variations, corresponding to the operating range, it can be assumed that the frequency varies linearly with the variations of the motor torque.

Le principe de l'invention consiste à doter l'oscillateur d'un correcteur 10 ayant une caractéristique de fréquence inverse de la sienne dans le domaine de fonctionnement.The principle of the invention consists in providing the oscillator with a corrector 10 having a frequency characteristic inverse to its own in the operating domain.

La figure 1 représente un tel correcteur. Il comporte un bâti 12, destiné à permettre l'assemblage du correcteur sur le mouvement de montre auquel il participe. Ce bâti 12 est rigide et permet d'assurer le positionnement précis du correcteur en référence à l'échappement. Il permet donc, également, de servir de référentiel pour les parties mobiles du correcteur qui seront décrites ci-après. Le correcteur 10 comprend également une lame flexible 14, solidaire du bâti et définissant un axe longitudinal AA. Cette lame flexible est destinée à coopérer avec l'oscillateur de l'échappement, notamment avec son ancre 6, au niveau d'une goupille 9 solidaire de l'ancre, la figure 13 en montrant deux. Selon l'enseignement du document EP 2 090 941 au nom de la demanderesse, on rappellera ainsi que, pour de petites amplitudes du balancier, la lame flexible 14 est en contact avec l'ancre 6 au niveau d'une portion de contact 14a et elle constitue un ressort additionnel qui agit sur le balancier en complément du ressort spiral 3. Si l'amplitude des oscillations augmente, il arrive un moment où la lame flexible 14 cesse d'être en contact avec l'ancre, modifiant ainsi la constante élastique du ressort de rappel global. Cela crée une non linéarité négative, constituée d'une part d'une diminution de pente et d'autre part d'un saut de force, dans la réponse de ce ressort de rappel global, et c'est cette non linéarité qui permet de compenser le défaut d'isochronisme positif mentionné plus haut (c'est-à-dire, une fréquence qui augmente quand l'amplitude augmente). Les moyens de réglage proposés dans le document EP 2 090 941 sont difficiles à mettre en oeuvre d'un point de vue pratique. Particulièrement, le dispositif décrit ne permet pas de régler la précontrainte exercée sur la lame élastique, cette précontrainte étant exercée par une butée fixe.The figure 1 represents such a corrector. It comprises a frame 12, intended to allow the assembly of the corrector on the watch movement in which it participates. This frame 12 is rigid and ensures accurate positioning of the corrector with reference to the exhaust. It also makes it possible to serve as a reference for the mobile parts of the corrector which will be described below. The corrector 10 also comprises a flexible blade 14, integral with the frame and defining a longitudinal axis AA. This flexible blade is intended to cooperate with the oscillator of the exhaust, in particular with its anchor 6, at the level of a pin 9 integral with the anchor, the figure 13 showing two. According to the teaching of the document EP 2,090,941 in the name of the applicant, it will be recalled that for small amplitudes of the balance, the flexible blade 14 is in contact with the anchor 6 at a contact portion 14a and it constitutes an additional spring which acts on the balance in addition to the spiral spring 3. If the amplitude of the oscillations increases, there comes a time when the flexible blade 14 stops being in contact with the anchor, thus changing the elastic constant of the overall return spring. This creates a negative nonlinearity, consisting on the one hand of a decrease of slope and on the other hand of a jump of force, in the response of this global return spring, and it is this nonlinearity which makes it possible to compensate for the positive isochronism defect mentioned above (i.e., a frequency that increases as the amplitude increases). The adjustment means proposed in the document EP 2,090,941 are difficult to implement from a practical point of view. In particular, the device described does not allow to adjust the preload exerted on the elastic blade, this preload being exerted by a fixed stop.

Particulièrement à l'invention, la lame flexible 14 est reliée au bâti par l'intermédiaire de systèmes de réglage, qui vont maintenant être décrits. La lame 14 est encastrée sur un premier élément intermédiaire 16. Ce dernier comporte, selon l'exemple illustré au dessin, un corps 16a de forme générale parallélépipédique, d'axe parallèle à l'axe AA en position neutre. Ce corps 16a est doté d'une aile transversale 16b, sur laquelle est encastrée la lame flexible 14. En outre, le corps 16a est prolongé par une queue 16c permettant de limiter les déplacements du corps 16a. Le premier élément intermédiaire 16 est solidaire du bâti 12, grâce à une première 18a et à une deuxième 18b lames élastiques. La première lame élastique 18a est agencée solidairement sur l'aile 16b, dans le prolongement de la lame flexible 14. La deuxième lame 18b est agencée solidairement sur le corps 16a, du côté opposé à la lame flexible 14, selon une direction perpendiculaire à la première lame 18a. Les lames élastiques sont reliées à un deuxième élément intermédiaire, servant de premier élément de référence, par rapport auquel les lames élastiques 18a et 18b peuvent se déformer. Comme on le comprendra mieux par la suite, les lames élastiques 18a et 18b, associées au premier élément intermédiaire 16 forment une première structure déformable. Plus particulièrement, il s'agit d'une structure déformable élastiquement autour d'un pivot à centre de compliance déporté (plus connu sous le terme anglais Remote Center Compliant flexure pivot), dont le centre de rotation est situé à l'intersection des lames élastiques.Particularly to the invention, the flexible blade 14 is connected to the frame by means of adjustment systems, which will now be described. The blade 14 is embedded in a first intermediate element 16. The latter comprises, according to the example illustrated in the drawing, a body 16a of parallelepipedal general shape, of axis parallel to the axis AA in neutral position. This body 16a is provided with a transverse wing 16b, on which is embedded the flexible blade 14. In addition, the body 16a is extended by a tail 16c to limit the displacement of the body 16a. The first intermediate element 16 is secured to the frame 12, thanks to a first 18a and a second 18b elastic blades. The first elastic blade 18a is integrally arranged on the flange 16b, in the extension of the flexible blade 14. The second blade 18b is integrally arranged on the body 16a, on the opposite side to the flexible blade 14, in a direction perpendicular to the first blade 18a. The resilient blades are connected to a second intermediate element, serving as a first reference element, with respect to which the resilient blades 18a and 18b can deform. As will be better understood later, the resilient blades 18a and 18b associated with the first intermediate member 16 form a first deformable structure. More particularly, it is a resiliently deformable structure around a pivot to remote compliance center (better known as Remote Center Compliant flexure pivot), whose center of rotation is located at the intersection of the blades elastic.

Le premier élément de référence est doté d'un doigt de précontrainte 22, positionné de manière à exercer une contrainte sur la lame flexible 14. Le premier élément de référence étant fixe lors des déformations de la structure déformable, on comprend que la lame flexible 14 se déplace en référence au doigt de précontrainte 22, ce qui a pour effet de modifier la contrainte exercée par le doigt sur la lame flexible 14, comme l'illustre la figure 5.The first reference element is provided with a preloading finger 22, positioned so as to exert stress on the flexible blade 14. The first reference element being fixed during the deformations of the deformable structure, it is understood that the flexible blade 14 moves with reference to preload finger 22, which has the effect of modifying the stress exerted by the finger on the flexible blade 14, as illustrated by FIG. figure 5 .

Un système de positionnement 24 de la structure déformable, qui sera décrit en détails ultérieurement en référence aux figures 10 et 11, est agencé pour agir sur le premier élément intermédiaire 16 au niveau de la queue 16c, et déplacer la lame flexible 14 autour du centre de rotation de la première structure déformable et ajuster ainsi la précontrainte qu'elle subit. On remarquera au passage, sur la figure 5, la limitation de course réalisée grâce à la queue 16c qui vient en appui sur l'élément de référence.A positioning system 24 of the deformable structure, which will be described in detail later with reference to the figures 10 and 11 , is arranged to act on the first intermediate element 16 at the tail 16c, and move the flexible blade 14 around the center of rotation of the first deformable structure and thus adjust the prestressing it undergoes. We will notice in passing, on the figure 5 , the stroke limitation achieved through the tail 16c which bears on the reference element.

Plus particulièrement, le deuxième élément intermédiaire 20 comporte, selon l'exemple illustré au dessin, un corps 20a de forme générale parallélépipédique, d'axe parallèle à l'axe AA en position neutre. Ce corps 20a est doté d'une aile transversale 20b, sur laquelle est encastrée la lame élastique 18a. En outre, le corps 20a est prolongé par une queue 20c permettant de limiter les déplacements du corps 20a. Le deuxième élément intermédiaire 20 est solidaire du bâti 12, grâce à une première 32a et à une deuxième 32b lames élastiques. La première lame élastique 32a est disposée sur l'aile 20b, dans le prolongement de la lame flexible 14 et de la lame élastique 18a. La deuxième lame 32b est disposée sur le corps 20a, du côté opposé à la lame flexible 14. Les lames élastiques 32a et 32b sont reliées au bâti 12, servant de deuxième élément de référence, par rapport auquel les lames élastiques 32a et 32b peuvent se déformer. Comme on le comprendra mieux par la suite, les lames élastiques 32a et 32b, associées au deuxième élément intermédiaire 20 forment une deuxième structure déformable. Plus particulièrement, il s'agit d'une structure déformable élastiquement autour d'un pivot à centre de compliance déporté, dont le centre de rotation est situé à l'intersection des lames élastiques. La lame élastique 32b est agencée de manière à ce que le centre de rotation de la première structure déformable soit confondu avec celui de la deuxième structure déformable.More particularly, the second intermediate element 20 comprises, according to the example illustrated in the drawing, a body 20a of parallelepipedal general shape, of axis parallel to the axis AA in neutral position. This body 20a is provided with a transverse wing 20b, on which is embedded the elastic blade 18a. In addition, the body 20a is extended by a tail 20c to limit the movement of the body 20a. The second intermediate element 20 is integral with the frame 12, thanks to a first 32a and a second 32b elastic blades. The first elastic blade 32a is disposed on the flange 20b, in the extension of the flexible blade 14 and the elastic blade 18a. The second blade 32b is disposed on the body 20a, on the opposite side to the flexible blade 14. The elastic blades 32a and 32b are connected to the frame 12, serving as a second reference element, with respect to which the resilient blades 32a and 32b can be deform. As will be better understood later, the resilient blades 32a and 32b associated with the second intermediate element 20 form a second deformable structure. More particularly, it is an elastically deformable structure around a pivot with a remote compliance center, whose center of rotation is located at the intersection of the elastic blades. The elastic blade 32b is arranged in such a way that the center of rotation of the first deformable structure coincides with that of the second deformable structure.

Lors de la déformation de la deuxième structure élastique, le corps 20 se déplace par rapport au bâti 12, solidairement avec la première structure élastique et la lame flexible 14. Ainsi, la lame flexible 14 et particulièrement son extrémité et sa portion de contact 14a destinée à entrer au contact de l'ancre 6, se déplacent en référence à l'oscillateur, ce qui a pour effet de modifier la position de la lame le long de la trajectoire suivie par la goupille 9, comme le montre la figure 6. On notera au passage que ce réglage n'a aucune influence sur la force de précontrainte de la lame flexible 14 contre le doigt de précontrainte 22, étant donné que la lame 14 et le doigt 22 se déplacent solidairement.During the deformation of the second elastic structure, the body 20 moves relative to the frame 12, integrally with the first elastic structure and the flexible blade 14. Thus, the flexible blade 14 and particularly its end and its contact portion 14a intended to come into contact with the anchor 6, move with reference to the oscillator, which has the effect of modifying the position of the blade along the path followed by the pin 9 as shown in figure 6 . Note in passing that this setting has no influence on the prestressing force of the flexible blade 14 against the preload finger 22, since the blade 14 and the finger 22 move together.

Un système de positionnement 34 de la deuxième structure déformable, qui sera décrit en détails ultérieurement en référence aux figures 10, 11 et 12, est agencé pour agir sur le deuxième élément intermédiaire 20 au niveau de la queue 20, et déplacer la lame flexible 14 et le premier élément de référence autour du centre de rotation de la deuxième structure déformable et ajuster ainsi le point de contact entre la goupille 9 de l'ancre 6 et la lame flexible 14. On remarquera au passage, sur la figure 6, la limitation de course réalisée grâce à la queue 20c qui vient en appui sur le bâti 12.A positioning system 34 of the second deformable structure, which will be described in detail later with reference to the figures 10 , 11 and 12 , is arranged to act on the second intermediate element 20 at the tail 20, and move the flexible blade 14 and the first reference element around the center of rotation of the second deformable structure and thus adjust the point of contact between the pin 9 of the anchor 6 and the flexible blade 14. It will be noted in passing, on the figure 6 , the stroke limitation achieved through the tail 20c which bears on the frame 12.

Les figures 2 à 4 montrent différentes positions de la goupille 9 en référence à la lame flexible 14, au cours d'une oscillation de l'oscillateur, afin de mieux comprendre l'action de lame flexible 14 sur l'oscillateur du mouvement. Sur ces figures 2 à 4, la lame flexible 14 est dans sa position neutre, c'est-à-dire que les première et deuxième structures déformables élastiquement ne sont pas déformées par leur système de positionnement respectif.The Figures 2 to 4 show different positions of the pin 9 with reference to the flexible blade 14, during oscillation of the oscillator, to better understand the action of flexible blade 14 on the oscillator of the movement. On these Figures 2 to 4 , the flexible blade 14 is in its neutral position, that is to say that the first and second resiliently deformable structures are not deformed by their respective positioning system.

Sur la figure 2, la lame flexible 14 est en appui contre la goupille 9 solidaire de l'ancre 6. On notera que, pour un fonctionnement optimal du correcteur, et comme le montre particulièrement la figure 9, le centre de la trajectoire circulaire que suit la goupille 9 est situé dans le plan de la lame flexible 14, de longueur L, à une distance L/3 de son point d'encastrement dans l'aile transversale 16b. Le centre de rotation de l'ancre 6 coïncide avec les centres de pivotement des structures déformables élastiquement. Sur la figure 2, la goupille 9 est représentée dans la position qu'elle a lorsque l'ancre 6 est en position neutre, c'est-à-dire avec le ressort spiral au repos. Dans cette position, la lame flexible est décollée du doigt de précontrainte 22.On the figure 2 the flexible blade 14 is in abutment against the pin 9 secured to the anchor 6. It should be noted that, for optimum operation of the corrector, and as shown particularly in FIG. figure 9 , the center of the circular path that follows the pin 9 is located in the plane of the flexible blade 14, of length L, at a distance L / 3 of its point of installation in the transverse wing 16b. The center of rotation of the anchor 6 coincides with the pivot centers of the elastically deformable structures. On the figure 2 , the pin 9 is shown in the position it has when the anchor 6 is in the neutral position, that is to say with the spiral spring at rest. In this position, the flexible blade is detached from the preloading finger 22.

Sur la figure 3, la goupille 9 est représentée dans la position qu'elle a lorsque l'ancre 6 est en position extrême vers la droite, en référence au dessin. Dans cette position, la lame flexible 14 est davantage décollée du doigt de précontrainte 22 que dans la position de la figure 2.On the figure 3 , the pin 9 is shown in the position it has when the anchor 6 is in the extreme position to the right, with reference to the drawing. In this position, the flexible blade 14 is more detached from the preloading finger 22 than in the position of the figure 2 .

Sur la figure 4, la goupille 9 est représentée dans la position qu'elle a lorsque l'ancre 6 est en position extrême vers la gauche, en référence au dessin. Dans cette position, la lame flexible 14 est en appui contre la butée de précontrainte et n'est plus en contact avec la goupille 9 de l'ancre 6.On the figure 4 , the pin 9 is shown in the position it has when the anchor 6 is in the extreme position to the left, with reference to the drawing. In this position, the flexible blade 14 bears against the preload stop and is no longer in contact with the pin 9 of the anchor 6.

La figure 9 représente schématiquement ces différentes positions. Ainsi, la goupille 9 suit un mouvement alterné le long de l'arc de cercle dessiné en traitillé. La position A représente la position angulaire extrême à droite de la goupille 9 au cours de son oscillation, la goupille est en contact avec la lame flexible 14. Dans la position B, la goupille 9 est en position neutre, et est en contact avec la lame flexible 14. Dans la position C, la lame vient en appui sur le doigt de précontrainte 22 et quitte la gouille 9 de l'ancre 6. Ceci produit une cassure de pente et un saut de force de la caractéristique angle-couple de l'oscillateur, due à la perte de contact de ce dernier avec la lame flexible 14. La position D montre la position extrême à gauche de la goupille, dans laquelle il n'y a pas de contact entre elle et la lame flexible 14. Comme évoqué ci-dessus, pour minimiser les frottements de la goupille 9 sur la lame flexible 14, cette dernière est placée de telle manière que :

  • le centre de rotation de l'ancre soit situé dans le plan de la lame flexible 14,
  • le centre de rotation de l'ancre soit situé à une distance d'environ 1/3 de la longueur active totale de la lame, en référence à son point d'encastrement.
The figure 9 schematically represents these different positions. Thus, the pin 9 follows an alternating movement along the arc of a circle drawn in broken lines. The position A represents the extreme angular position to the right of the pin 9 during its oscillation, the pin is in contact with the flexible blade 14. In the position B, the pin 9 is in the neutral position, and is in contact with the flexible blade 14. In the C position, the blade bears on the preload finger 22 and leaves the garrel 9 of the anchor 6. This produces a break slope and a force jump of the characteristic angle-torque of the oscillator, due to the loss of contact of the latter with the flexible blade 14. The position D shows the extreme position to the left of the pin, in which there is no contact between it and the flexible blade 14. As mentioned above, to minimize the friction of the pin 9 on the flexible blade 14, the latter is placed in such a way that:
  • the center of rotation of the anchor is located in the plane of the flexible blade 14,
  • the center of rotation of the anchor is located at a distance of approximately 1/3 of the total active length of the blade, with reference to its embedding point.

Ainsi, la portion de contact 14a de la lame 14 avec la goupille 9 suit une trajectoire sensiblement confondue avec celle de la goupille 9, minimisant ainsi les frottements relatifs entre ces deux pièces. En outre, comme mentionné ci-dessus, le réglage de l'angle de contact entre la goupille 9 et la lame flexible 14, réglée par la deuxième structure déformable élastiquement, n'a pas d'influence sur le réglage de la précontrainte. En outre, pour que le réglage de la précontrainte n'ait, lui aussi, pas ou peu d'influence sur le réglage de l'angle de contact, le doigt de précontrainte 22 doit être placé aussi proche que possible de la portion de contact 14a de la lame flexible 14 destinée à être au contact de la goupille 9. Au premier ordre, on peut considérer que le réglage de la précontrainte et le réglage de l'angle de contact sont indépendants l'un de l'autre.Thus, the contact portion 14a of the blade 14 with the pin 9 follows a path substantially coincident with that of the pin 9, thus minimizing the relative friction between these two parts. In addition, as mentioned above, the adjustment of the contact angle between the pin 9 and the flexible blade 14, set by the second elastically deformable structure, has no influence on the adjustment of the prestressing. In addition, so that the preload adjustment also has little or no influence on the adjustment of the contact angle, the preloading finger 22 must be placed as close as possible to the contact portion. 14a of the flexible blade 14 intended to be in contact with the pin 9. In the first order, it can be considered that the adjustment of the prestressing and the adjustment of the contact angle are independent of one another.

La figure 7 propose un deuxième mode de réalisation de l'invention, dans lequel le correcteur selon l'invention présente, arrangés symétriquement par rapport un axe parallèle à l'axe AA, deux correcteurs tels que celui décrit ci-dessus, définissant chacun une première et une deuxième parties. Sur cette figure tout comme sur la figure 13, l'ancre 6 comporte deux goupilles 9, qui sont représentées en position neutre. Les quatre structures déformables élastiquement sont également présentées en position neutre, c'est-à-dire non déformée. De préférence, afin de diminuer l'encombrement d'un tel correcteur, les lames flexibles 14, les structures déformables et le bâti 12 des première et deuxième parties forment une pièce plane, de préférence réalisée de manière monolithique, par les techniques connues de l'homme du métier, telles que l'électroérosion à fil, la photolithographie ou la gravure profonde.The figure 7 proposes a second embodiment of the invention, in which the corrector according to the invention has, arranged symmetrically with respect to an axis parallel to the axis AA, two correctors such as that described above, each defining a first and a second parts. In this figure just as on the figure 13 , the anchor 6 has two pins 9, which are shown in the neutral position. The four elastically deformable structures are also presented in a neutral position, that is to say undeformed. Preferably, in order to reduce the bulk of such a corrector, the flexible blades 14, the deformable structures and the frame 12 of the first and second parts form a flat piece, preferably made monolithically, by the known techniques of the skilled in the art, such as wire electroerosion, photolithography or deep etching.

Dans une structure planaire telle que proposée au dessin, les centres de rotations des structures déformables ne peuvent être confondus avec le centre de rotation de l'ancre 6, comme pour le premier mode de réalisation. Pour s'approcher au mieux de ces conditions optimales décrites ci-dessus en référence aux figures 2 et 9, le centre de pivotement de l'ancre 6 est positionné au milieu du segment reliant les centres de pivotement des structures déformables, d'une part, de la première partie du correcteur et, d'autre part, de la deuxième partie du correcteur. Les lames 14 sont agencées au plus proche d'une ligne perpendiculaire à la trajectoire de l'oscillateur.In a planar structure as proposed in the drawing, the centers of rotation of the deformable structures can not be confused with the center of rotation of the anchor 6, as for the first embodiment. To get as close as possible to these optimal conditions described above with reference to figures 2 and 9 the center of pivoting of the anchor 6 is positioned in the middle of the segment connecting the pivot centers of the deformable structures, on the one hand, of the first part of the corrector and, on the other hand, of the second part of the corrector. The blades 14 are arranged closest to a line perpendicular to the trajectory of the oscillator.

La figure 8 illustre un troisième réglage que le correcteur d'isochronisme, dans ses versions simple ou symétrique, peut présenter. Ce réglage permet d'agir sur la longueur active de la lame flexible 14 en référence à l'oscillateur. En d'autres termes, on agit sur la distance entre le point d'encastrement de la lame flexible 14 et le point d'appui de lame flexible 14 sur la goupille 9. Pour ce faire, le bâti 12 est monté mobile en translation en référence à l'oscillateur, selon une direction parallèle à l'axe AA. Ceci peut être simplement obtenu par des oblongs 36 ménagés dans le bâti 12, à l'intérieur desquels coopèrent des vis de serrage 38 (fig. 12). Il résulte de ce réglage une modification de la rigidité apparente de la lame flexible 14. Sur la figure 8, on a représenté un décalage du correcteur en direction de l'oscillateur, ce qui raccourcit la longueur active de la lame flexible 14 et augmente donc sa rigidité apparente. Notons que ce réglage n'a aucun effet sur la force de précontrainte de la lame flexible 14 contre le doigt de précontrainte 22. En outre, si la position angulaire de la goupille 9 pour laquelle cette dernière perd le contact avec la lame flexible 14 au cours de son déplacement vers la gauche (en référence au dessin) est située en référence au doigt de précontrainte 22, sur une ligne parallèle à l'axe AA, alors le réglage de la rigidité illustré sur cette figure n'a aucune influence non plus sur le réglage de l'angle de contact décrit à la figure 6. Notons enfin que le réglage illustré sur cette figure 8 décale le centre de pivotement des structures déformables élastiquement par rapport au centre de rotation de l'ancre. Ce décalage a pour conséquence d'augmenter légèrement les frottements au niveau du point de contact entre la goupille 9 de l'ancre 6 et la lame flexible 14, mais dans des proportions acceptables.The figure 8 illustrates a third adjustment that the isochronism corrector, in its simple or symmetrical versions, can present. This adjustment makes it possible to act on the active length of the flexible blade 14 with reference to the oscillator. In other words, it acts on the distance between the point of insertion of the flexible blade 14 and the flexible blade support point 14 on the pin 9. To do this, the frame 12 is mounted to move in translation in translation. reference to the oscillator, in a direction parallel to the axis AA. This can be simply obtained by oblongs 36 formed in the frame 12, within which clamping screws 38 (FIG. Fig. 12 ). As a result of this adjustment, the apparent rigidity of the flexible blade 14 is modified. figure 8 , there is shown a shift of the corrector towards the oscillator, which shortens the active length of the flexible blade 14 and thus increases its apparent rigidity. Note that this setting has no effect on the prestressing force of the flexible blade 14 against the preload finger 22. In addition, if the angular position of the pin 9 for which the latter loses contact with the flexible blade 14 to course of its displacement to the left (with reference to the drawing) is located with reference to the preload finger 22, on a line parallel to the axis AA, then the adjustment of the rigidity shown in this figure has no influence either on the adjustment of the contact angle described in figure 6 . Finally, note that the setting shown on this figure 8 shifts the center of pivoting structures elastically deformable relative to the center of rotation of the anchor. This offset has the effect of slightly increasing the friction at the point of contact between the pin 9 of the anchor 6 and the flexible blade 14, but in acceptable proportions.

Le correcteur d'isochronisme selon l'invention peut être usiné dans une tôle d'alliage métallique avec des propriétés adaptées à la fabrication de ressorts (on pourra choisir des alliages à base de cuivre et de béryllium ou d'acier au carbone, connus de l'homme du métier). Les différents perçages, taraudages et fraisages sont effectués en premier lieu. Ensuite, on effectue un traitement par durcissement structural. Enfin la structure élastique est découpée par électroérosion à fil (EDM).The isochronism corrector according to the invention can be machined in a metal alloy sheet with properties suitable for the manufacture of springs (it is possible to choose alloys based on copper and beryllium or carbon steel, known from the skilled person). The different holes, tapping and milling are done first. Then, treatment is carried out by structural hardening. Finally the elastic structure is cut by wire EDM.

D'autres matériaux peuvent aussi être utilisés, dès lors qu'ils présentent des caractéristiques élastiques satisfaisantes. La technique de réalisation est adaptée au matériau utilisé. On pourra notamment réaliser le correcteur en silicium, par la technique de DRIE (Deep Reactive Ion Etching).Other materials can also be used, provided they have satisfactory elastic characteristics. The production technique is adapted to the material used. In particular, the silicon corrector can be made using the DRIE (Deep Reactive Ion Etching) technique.

Les figures 10 et 11 représentent les systèmes de positionnement permettant de régler la déformation des structures déformables, utilisés de manière avantageuse dans un correcteur d'isochronisme selon l'invention. L'homme du métier pourra envisager d'utiliser d'autres systèmes de positionnement. Les figures représentent particulièrement le système de positionnement 24 de la première structure déformable, mais le système de positionnement 34 de la deuxième structure déformable est tout à fait similaire.The figures 10 and 11 represent the positioning systems for adjusting the deformation of deformable structures, advantageously used in an isochronous corrector according to the invention. The skilled person may consider using other positioning systems. The figures particularly represent the positioning system 24 of the first deformable structure, but the positioning system 34 of the second deformable structure is quite similar.

Dans l'exemple représenté, chaque système de positionnement comporte deux vis pointeaux 40 qui assurent à la fois le réglage proprement dit, c'est-à-dire le déplacement de la structure déformable élastiquement, et le verrouillage de sa position. Les vis pointeaux 40 sont vissées dans des plots 41, eux-mêmes fixés au bâti 12 du correcteur.In the example shown, each positioning system comprises two set screws 40 which ensure both the actual adjustment, that is to say the displacement of the elastically deformable structure, and the locking of its position. The set screws 40 are screwed into studs 41, themselves fixed to the frame 12 of the corrector.

On a une vis pointeau 40 disposée de chaque côté des éléments intermédiaires 16 et 20, au niveau de leur queue 16c ou 20c, en coopération avec elle. A l'endroit où les vis 40 exercent leur action, la queue 16c ou 20c présente une creusure circulaire 42, de manière à ce que l'action de la portion conique du pointeau coopère efficacement avec l'élément intermédiaire 16 ou 20. Les vis pointeaux 40 sont disposées de manière excentrique par rapport à la creusure circulaire 42, en étant décalée du côté de la queue 16c ou 20c. Ainsi, les vis pointeaux 40 n'exercent une pression que sur l'élément intermédiaire 16 ou 20 avec lequel elles coopèrent. L'enfoncement de la vis pointeau 40 en référence à l'élément intermédiaire 16 ou 20 et donc le rayon du cône au niveau du contact avec la creusure 42, permet d'ajuster la position de l'élément intermédiaire 16 ou 20.There is a set screw 40 disposed on each side of the intermediate elements 16 and 20, at their tail 16c or 20c, in cooperation with it. At the place where the screws 40 exert their action, the tail 16c or 20c has a circular recess 42, so that the action of the conical portion of the needle cooperates effectively with the intermediate element 16 or 20. The screws Needles 40 are eccentrically disposed with respect to the circular recess 42, offset from the shank side 16c or 20c. Thus, the needle screws 40 exert a pressure only on the intermediate element 16 or 20 with which they cooperate. The depression of the needle screw 40 with reference to the intermediate element 16 or 20 and therefore the radius of the cone at the contact with the recess 42 makes it possible to adjust the position of the intermediate element 16 or 20.

Ainsi, on desserre légèrement l'une des vis 40 d'un système de positionnement, puis, on ramène la queue 16c ou 20c au contact de cette vis 40 en serrant légèrement l'autre vis 40. Le déplacement effectué peut être estimé au moyen d'un repère angulaire fixé directement sur les vis de serrage. En fonction de l'angle du cône de la vis pointeau 40 et du pas de celle-ci, on peut estimer que le réglage des structures déformables peut être effectué avec une précision de l'ordre du micron. Lorsque les deux vis agissant au niveau d'un élément intermédiaire 16 ou 20 sont serrées, la position de cet élément se trouve sécurisée. Il est particulièrement intéressant de pouvoir faire le réglage de la position des structures déformables et le verrouillage de leur positionnement, au moyen d'un seul dispositif, car ainsi, on évite tout risque de modifier le réglage lors du verrouillage.Thus, one of the screws 40 of a positioning system is slightly loosened, then the tail 16c or 20c is brought into contact with this screw 40 by slightly tightening the other screw 40. The displacement can be estimated by means of an angular mark fixed directly on the clamping screws. Depending on the angle of the cone of the needle screw 40 and the pitch thereof, it can be estimated that the adjustment of the deformable structures can be performed with a precision of the order of one micron. When the two screws acting at an intermediate element 16 or 20 are tightened, the position of this element is secured. It is particularly interesting to be able to adjust the position of the deformable structures and the locking of their positioning, by means of a single device, as well, it avoids any risk of changing the setting when locking.

Enfin, la figure 12 représente le correcteur selon l'invention dans sa version symétrique, muni des systèmes de positionnement 24 et 34 de chacune des structures déformables élastiquement. On peut constater que les vis des systèmes de réglage sont avantageusement accessibles par le dessus, ce qui, compte tenu de la précision des réglages à effectuer, est un avantage important au niveau pratique, pour les opérations à effectuer manuellement par un horloger.Finally, figure 12 represents the corrector according to the invention in its symmetrical version, provided with positioning systems 24 and 34 of each elastically deformable structures. It can be seen that the screws of the adjustment systems are advantageously accessible from above, which, given the accuracy of the adjustments to be made, is an important advantage at the practical level, for the operations to be performed manually by a watchmaker.

Ainsi est proposé un correcteur d'isochronisme offrant des facilités de réglage particulièrement intéressantes de son action sur un oscillateur mécanique. En outre, son design permet une réalisation aisée et précise, en limitant l'encombrement généré dans le mouvement horloger.Thus is proposed an isochronous corrector offering particularly interesting adjustment facilities of its action on a mechanical oscillator. In addition, its design allows an easy and precise realization, limiting the clutter generated in the watch movement.

L'homme du métier pourra envisager diverses variantes, sans sortir du cadre de l'invention délimité par les revendications. Ainsi, il est envisageable de réaliser un correcteur comprenant plusieurs parties, telles que celle décrite dans le premier mode de réalisation, en référence aux figues 1 à 6. Les lames des différentes parties utilisées peuvent ne pas être parallèles, ni disposées symétriquement, bien que ces configurations soient moins favorables.The skilled person may consider various variants, without departing from the scope of the invention defined by the claims. Thus, it is conceivable to produce a corrector comprising several parts, such as that described in the first embodiment, with reference to FIGS. 1 to 6. The blades of the various parts used may not be parallel or arranged symmetrically, although these configurations are less favorable.

En outre, on relèvera que la notion de lame flexible doit être interprétée de manière large. Ainsi, selon la définition donnée par le «Dictionnaire professionnel illustré de l'horlogerie» de G. A. Berner, une lame est un morceau de matière plat, mince et flexible. La flexibilité peut être réalisée sur toute la longueur de la lame ou seulement en une portion limitée. On peut également envisager d'avoir une lame dont la flexibilité est obtenue par une structure élastiquement autour d'un pivot à centre de compliance déporté. La figure 14 propose un tel agencement, dans lequel chaque partie de correcteur présente trois structures à centre de compliance déporté, deux semblables à celles décrites ci-dessus, et une pour assurer la flexion de la lame. On relèvera que, de manière particulièrement avantageuse, il est possible, dans une telle configuration, que les centres de rotations des structures déformables soient confondus avec le centre de rotation de l'ancre 6, comme pour le premier mode de réalisation décrit ci-dessus.In addition, it should be noted that the notion of flexible blade must be interpreted in a broad manner. Thus, according to the definition given by GA Berner's "Professional Illustrated Dictionary of Watchmaking", a blade is a piece of flat, thin and flexible material. Flexibility can be achieved over the entire length of the blade or only in a limited portion. It is also conceivable to have a blade whose flexibility is obtained by a structure elastically around a pivot with a remote compliance center. The figure 14 proposes such an arrangement, wherein each corrector portion has three structures with remote compliance center, two similar to those described above, and one to ensure the bending of the blade. It will be noted that, in a particularly advantageous manner, it is possible, in such a configuration, that the centers of rotation of the deformable structures coincide with the center of rotation of the anchor 6, as for the first embodiment described above. .

On notera que, dans le cas d'une structure avec deux parties identiques mais disposées dans des plans différents, il est également possible que les centres de rotation de l'ancre et des structures déformables de chacune des parties soient superposés. Une telle réalisation pourrait également être réalisée de manière monolithique.Note that, in the case of a structure with two identical parts but arranged in different planes, it is also possible that the centers of rotation of the anchor and deformable structures of each of the parts are superimposed. Such an embodiment could also be carried out monolithically.

Claims (15)

  1. A mechanical oscillator isochronism corrector including
    - a frame (12),
    - a flexible blade (14) integral with the frame to act on the mechanical oscillator at a contact portion (14a) presented by the blade,
    - first means for adjusting the pre-stress of said flexible blade comprising a pre-stress finger (22) acting on said flexible blade, said first adjustment means being integral with the frame,
    said isochronism corrector being arranged in order to present a frequency characteristic opposite of the oscillator's in the operating range.
  2. The isochronism corrector according to claim 1, characterized in that it also includes second means for adjusting the position of the contact portion (14a), to adjust the position in which the oscillator comes into contact with the flexible blade, said second adjustment means being integral with the frame and being independent of the first adjustment means.
  3. The isochronism corrector according to claim 1 or 2, characterized in that it also includes third means for adjusting the angular rigidity of said flexible blade (14) in reference to the mechanical oscillator, by translation of the frame (12).
  4. The corrector according to claim 2, characterized in that said first and second adjustment means are each made up of an elastically deformable structure around a remote center compliant flexure pivot, each structure being independently deformable via a respective positioning system.
  5. The corrector according to claim 4, characterized in that the compliance center of the first adjustment means is situated at the same location as the compliance center of the second adjustment means.
  6. The corrector according to claim 5, characterized in that the deformable structure of said first adjustment means includes a first intermediate element (16), integral with the flexible blade (14) and first (18a) and second (18b) elastic blades connected, on one hand, to a reference element provided with said pre-stress finger (22) and, on the other hand, to said first intermediate element (6).
  7. The corrector according to claim 5, characterized in that the deformable structure of said second adjustment means includes a second intermediate element (20) integral with flexible blade (14), first (32a) and second (32b) elastic blades connected on one hand to a reference element and, on the other hand, to said second intermediate element (16).
  8. The corrector according to claims 6 and 7, characterized in that the reference element of the deformable structure of said first adjustment means is formed by the deformable structure of said second adjustment means.
  9. The corrector according to one of claims 4 to 8, characterized in that the frame, the blade and the elastically deformable structures form a planar and/or monolithic piece.
  10. The corrector according to claim 7 or claim 8, characterized in that it comprises, arranged on a same frame (12), n additional correctors according to claim 7 or claim 8.
  11. The corrector according to claim 10, including two correctors according to claim 7 or claim 8 arranged symmetrically relative to a line perpendicular to the path of a support zone of the oscillator.
  12. The corrector according to one of claims 10 and 11, characterized in that the frame, the blades and the elastically deformable structures form a planar and/or monolithic piece.
  13. An escapement mechanism comprising
    - a corrector (10) according to one of claims 1 to 9, said flexible blade (14) having a length L and an end integral with the frame, and
    - a mechanical oscillator having a support zone (9) designed to cooperate with the contact portion (14a) of said flexible blade, said support zone describing a circular path,
    characterized in that the blade is arranged along a line perpendicular to said path and in that the center of said path is situated in the plane of said blade, at a distance L/3 from its connection point to the frame.
  14. An escapement mechanism comprising
    - a corrector according to one of claims 10 to 12, said flexible blades (14) having a length L and an end integral with the frame, and
    - a mechanical oscillator having first and second support zones (9) designed to cooperate respectively with the contact portion (14a) of the first and second flexible blades, said support zones describing a single circular path, characterized in that said blades are arranged as close as possible to a line perpendicular to the path of the oscillator.
  15. The escapement mechanism according to claim 14, wherein the center of said path is situated symmetrically between said flexible blades, at a normal distance L/3 from their connection point to the frame.
EP09168113.0A 2009-08-18 2009-08-18 Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector Active EP2290476B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09168113.0A EP2290476B1 (en) 2009-08-18 2009-08-18 Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector
US12/858,606 US8672536B2 (en) 2009-08-18 2010-08-18 Isochronism corrector for clockwork escapement and escapement provided with such a corrector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09168113.0A EP2290476B1 (en) 2009-08-18 2009-08-18 Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector

Publications (2)

Publication Number Publication Date
EP2290476A1 EP2290476A1 (en) 2011-03-02
EP2290476B1 true EP2290476B1 (en) 2014-04-23

Family

ID=41558188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09168113.0A Active EP2290476B1 (en) 2009-08-18 2009-08-18 Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector

Country Status (2)

Country Link
US (1) US8672536B2 (en)
EP (1) EP2290476B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2553533B2 (en) † 2010-04-01 2019-06-19 Rolex S.A. Device for locking a toothed wheel

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH704649B1 (en) * 2011-03-23 2019-04-15 Lvmh Swiss Mft Sa Oscillating element for clock-setting device.
JP6254584B2 (en) * 2012-06-26 2017-12-27 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ Determination method of unbalance characteristics of vibrating body
EP3032351A1 (en) * 2014-12-09 2016-06-15 LVMH Swiss Manufactures SA Timepiece mechanism, timepiece movement and timepiece having such a mechanism
CH711519B1 (en) * 2015-09-15 2020-04-15 Vaucher Mft Fleurier S A Adjustable bridge for timepiece.
CH713288A1 (en) 2016-12-23 2018-06-29 Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie Flexible monolithic component for timepiece.
US10216146B2 (en) * 2017-07-18 2019-02-26 Patek Philippe Sa Geneve Indicator actuating organ for a timepiece
USD853879S1 (en) * 2017-09-15 2019-07-16 Patek Philippe Sa Geneve Corrector for timepieces
EP3489762B1 (en) * 2017-11-23 2020-09-09 Gfpi S.A. Operating system for a timepiece
EP3722888B1 (en) 2019-04-09 2023-05-17 Ecole Polytechnique Fédérale de Lausanne (EPFL) Mechanical oscillator with tunable isochronism defect
CH716525B1 (en) * 2019-08-26 2023-02-28 Csem Ct Suisse Delectronique Microtechnique Sa Rech Developpement Self-starting mechanical watch regulator.
WO2024100597A1 (en) 2022-11-09 2024-05-16 Ecole Polytechnique Federale De Lausanne (Epfl) Pivot, process for manufacturing such a pivot, oscillator comprising such a pivot, watch movement and timepiece comprising such an oscillator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR648846A (en) * 1927-02-21 1928-12-14 anchor escapement for watch movements
CH1082662A4 (en) * 1962-09-12 1964-09-30
US3695032A (en) * 1971-06-07 1972-10-03 Bunker Ramo Isochronal correction system
ATE389902T1 (en) 2005-06-23 2008-04-15 Suisse Electronique Microtech CLOCK
EP2090941B1 (en) * 2008-02-18 2011-10-19 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Mechanical oscillator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2553533B2 (en) † 2010-04-01 2019-06-19 Rolex S.A. Device for locking a toothed wheel

Also Published As

Publication number Publication date
US8672536B2 (en) 2014-03-18
EP2290476A1 (en) 2011-03-02
US20110044139A1 (en) 2011-02-24

Similar Documents

Publication Publication Date Title
EP2290476B1 (en) Isochronism corrector for a timepiece escapement and an escapement equipped with such a corrector
EP2273323B1 (en) Mechanical oscillator
EP4009115A1 (en) Hairspring for timepiece resonator mechanism provided with a means for adjusting rigidity
EP2596406B1 (en) Oscillating mechanism with elastic pivot and mobile for the transmission of energy
EP2105806A1 (en) Escapement mechanism
EP0587031B1 (en) Timepiece with driving means consisting of a piezoelectric motor
EP2363763A2 (en) Timepiece including a high-frequency mechanical movement
EP4016194B1 (en) Timepiece resonator mechanism with flexible guide provided with a means for adjusting the rigidity
EP2781965B1 (en) Frame for a clockwork
EP2690507A1 (en) Holorological hairspring
EP4187326A1 (en) Hairspring for timepiece resonator mechanism provided with a means for adjusting stiffness
EP0580049B1 (en) Piezo-electric motor
EP1870784B1 (en) Micro-mechanical wheel with impact-controlled rotation
WO2021121707A1 (en) Timepiece display mechanism
EP2798413B1 (en) Spring for clock movement
EP3196710A1 (en) Timepiece movement comprising an analogue display
EP2977833B1 (en) Accurate positioning of a timepiece bridge
EP2798414B1 (en) Spring for clock movement
CH718113A2 (en) Hairspring for clock resonator mechanism provided with means for adjusting the rigidity.
FR3065542B1 (en) METHOD FOR MANUFACTURING A MECHANISM
EP4386486A1 (en) Hairspring for timepiece resonator mechanism provided with means for adjusting the flexibility and associated materials
EP3761122B1 (en) Timepiece escapement component, associated escapement mechanism and timepiece
EP4357857A1 (en) Hairspring for timepiece resonator mechanism provided with means for adjusting the stiffness
EP2515185A1 (en) Engine with constant torque
EP3499318A1 (en) Oscillator system for a watch

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

17P Request for examination filed

Effective date: 20110831

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20131129

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 664183

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602009023425

Country of ref document: DE

Effective date: 20140612

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: GLN S.A., CH

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 664183

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140423

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20140423

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140823

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140724

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140723

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140723

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140825

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009023425

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140818

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

26N No opposition filed

Effective date: 20150126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602009023425

Country of ref document: DE

Effective date: 20150126

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20090818

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROT, CH

Free format text: FORMER OWNER: CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DEVELOPPEMENT, CH

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140423

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD SA NEUCHATEL CONSEILS EN PROPRIETE INTE, CH

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20210831

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210830

Year of fee payment: 13

Ref country code: GB

Payment date: 20210831

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602009023425

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220831

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220818

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20230902

Year of fee payment: 15