EP2320280A1 - Anchor for clock escapement system - Google Patents

Anchor for clock escapement system Download PDF

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Publication number
EP2320280A1
EP2320280A1 EP09175274A EP09175274A EP2320280A1 EP 2320280 A1 EP2320280 A1 EP 2320280A1 EP 09175274 A EP09175274 A EP 09175274A EP 09175274 A EP09175274 A EP 09175274A EP 2320280 A1 EP2320280 A1 EP 2320280A1
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EP
European Patent Office
Prior art keywords
fork
anchor
rod
silicon
exhaust system
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.)
Withdrawn
Application number
EP09175274A
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German (de)
French (fr)
Inventor
Raymond Gabus
Marco Verardo
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.)
Nivarox Far SA
Nivarox SA
Original Assignee
Nivarox Far SA
Nivarox SA
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 Nivarox Far SA, Nivarox SA filed Critical Nivarox Far SA
Priority to CH01720/09A priority Critical patent/CH702202B1/en
Priority to EP09175274A priority patent/EP2320280A1/en
Publication of EP2320280A1 publication Critical patent/EP2320280A1/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel

Definitions

  • the invention relates to an exhaust system of a timepiece and, more specifically, to such a system comprising an anchor whose function of the rod and that of the fork can be decoupled.
  • the Swiss-anchor type free-escapement systems are difficult to develop because they are the compromise between the lowest possible inertia and a pallet and fork tribology, the best possible. Thus, it is difficult to avoid snags between the plateau pin and the horns of the fork while preserving minimal inertia and even insensitivity to magnetic fields.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing an alternative solution for constructing an anchor that avoids compromises.
  • the invention relates to an escapement system comprising an anchor provided with a fork intended to cooperate with an anchor mounted on a plate, characterized in that the rod of the anchor comprises a dart coming from a first material and that the fork is formed by a second material and is attached to the rod of the anchor to optimize the respective functions of the fork and the rod.
  • the mechanical characteristics provided by the material of the rod are no longer tributary those of the fork. Therefore, by way of example, the inertial function of the rod and the tribological function of the fork can, advantageously according to the invention, be decoupled.
  • the invention also relates to a timepiece characterized in that it comprises an exhaust system according to one of the preceding variants.
  • the exhaust system 1 for a timepiece.
  • the exhaust system 1 comprises in particular an anchor 3 and a plate 5.
  • the plate 5 is preferably driven on the balance shaft 2 and comprises a small plate 4 provided with a notch 6 and a large plate 8 provided with ankle 7.
  • the anchor 3 preferably comprises a rod 9 formed by a first material which can be selected according to its desired sensitivity to the magnetic fields and / or its inertia and / or machinability and / or appearance.
  • the material of the rod 9 will preferably have a density of less than 8 ⁇ 10 3 kg.m -3 .
  • the material of the rod 9 is also paramagnetic in order to reduce the sensitivity of the anchor 3 to the magnetic fields.
  • Such a strip material 9 may be, for example, coated or uncoated silicon, titanium, aluminum, magnesium, steel, a copper alloy, an austenitic cobalt alloy or an austenitic nickel alloy. .
  • the rod 9 may also be formed by a precious metal such as gold or platinum or one of their alloys.
  • the rod 9 comprises arms 11 and 13 intended to receive pallets 10 and 12 in order to cooperate with at least one escape wheel (not shown) Between these two arms 11 and 13, is mounted the anchor rod 14 to pivotally mount the anchor 3.
  • the rod 14 can be made, for example, in a material such as steel, brass or aluminum. nickel.
  • the rod 9 comprises a dart 15 and a fork 17.
  • the dart 15 has come in shape with the rod 9 and, preferably, an extension of the latter.
  • the dart 15 is intended to cooperate with the small plate 4 to prevent accidental movements of the fork 17.
  • the fork 17 preferably comprises a board 19 formed by a second material, preferably different from the first material of the rod 9 and intended to allow the improvement of the tribological qualities of the fork 17 while avoiding to impair the overall inertia of the anchor 3.
  • the material of the fork 17 is also paramagnetic in order to reduce the sensitivity of the anchor 3 to the magnetic fields.
  • the material of the fork 17 is ideally a material having a low wear and a low coefficient of friction in association with the pin 7 of the large plate 8.
  • a material may be for example silicon, silicon coated with a layer of dioxide silicon, silicon coated with a diamond layer, Cu-Be alloy or a metal in amorphous form.
  • the fork 17 is preferably mounted directly above the stinger 15 and comprises two horns 16 and 18 intended to come into contact with the pin 7 of the large plate 8 so that, following the rotation of the pin 7, the anchor 3 pivoting about its rod 14 in a back and forth motion.
  • the optimization of the anchor 3 is allowed. between the desired sensitivity to the magnetic fields and / or the desired inertia and / or machinability and / or the appearance of the rod 9, on the one hand, and the low wear and the low coefficient of friction in association with the ankle 7, of the fork 17.
  • the rod 9 could be obtained using a method whose accuracy is less than that used to achieve the fork 17.
  • the fork 17 could, for example, be obtained by etching a silicon wafer or electroforming LIGA type or even formatting mechanics of a metal in amorphous form.
  • the fork 17 is attached to the rod 9 by means of a tenon 20 in order to raise the board of said fork relative to the plane of the rod 9.
  • the post 20 may be made of a material such as steel, brass or nickel silver and be, for example, driven out and / or glued and / or welded in the rod 9 and the fork 17.
  • the shapes of the anchor 3 and / or the plate 5 may be different.
  • the anchor 3 may thus comprise, for example, at least a third arm for receiving at least a third pallet for the application of the invention to a coaxial type exhaust system.
  • the first and second different materials can also be understood as a difference in external coating while their soul is identical.
  • the rod 9 could thus be formed of silicon-coated silicon and the diamond-coated silicon fork 17 without departing from the fact that the first material of the rod 9 is different from the second material of the fork 17.
  • the same reflection also applies to one of the materials whose nature is identical to the core of the other material, the other material being the only one to be coated.

Abstract

The system has a pallet (3) including a fork (17) co-operating with a pin mounted on a plate. The pallet has a bar (9) provided with a guard pin (15) made of first paramagnetic material, and the fork has a cover (19) made of second paramagnetic material, where the materials are different. The fork is fixed on the bar of the pallet by a stud (20) to raise the fork with respect to a plane of the bar. A pallet rod (14) is arranged between arms (11, 13) of the bar so as to pivotably assemble the pallet.

Description

Domaine de l'inventionField of the invention

L'invention se rapporte à un système d'échappement d'une pièce d'horlogerie et, plus précisément, à un tel système comportant une ancre dont la fonction de la baguette et celle de la fourchette peuvent être découplées.The invention relates to an exhaust system of a timepiece and, more specifically, to such a system comprising an anchor whose function of the rod and that of the fork can be decoupled.

Arrière plan de l'inventionBackground of the invention

Les systèmes à échappement libre du type à ancre suisse sont difficiles à mettre au point car ils sont le compromis entre une inertie la plus faible possible et une tribologie des palettes et de la fourchette, les meilleures possibles. Ainsi, il est difficile d'éviter les collements entre la cheville de plateau et les cornes de la fourchette tout en préservant une inertie minimale et même une insensibilité aux champs magnétiques.The Swiss-anchor type free-escapement systems are difficult to develop because they are the compromise between the lowest possible inertia and a pallet and fork tribology, the best possible. Thus, it is difficult to avoid snags between the plateau pin and the horns of the fork while preserving minimal inertia and even insensitivity to magnetic fields.

Résumé de l'inventionSummary of the invention

Le but de la présente invention est de pallier tout ou partie les inconvénients cités précédemment en proposant une solution alternative de construction d'une ancre qui évite les compromis.The object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing an alternative solution for constructing an anchor that avoids compromises.

A cet effet, l'invention se rapporte à un système d'échappement comportant une ancre munie d'une fourchette destinée à coopérer avec une cheville montée sur un plateau caractérisé en ce que la baguette de l'ancre comporte un dard venu de matière dans un premier matériau et en ce que la fourchette est formée par un deuxième matériau et est rapportée sur la baguette de l'ancre afin d'optimiser les fonctions respectives de la fourchette et de la baguette.For this purpose, the invention relates to an escapement system comprising an anchor provided with a fork intended to cooperate with an anchor mounted on a plate, characterized in that the rod of the anchor comprises a dart coming from a first material and that the fork is formed by a second material and is attached to the rod of the anchor to optimize the respective functions of the fork and the rod.

Ainsi, avantageusement selon l'invention, les caractéristiques mécaniques apportées par la matière de la baguette ne sont plus tributaires de celles de la fourchette. Par conséquent, à titre d'exemple, la fonction inertielle de la baguette et la fonction tribologique de la fourchette peuvent, avantageusement selon l'invention, être découplées.Thus, advantageously according to the invention, the mechanical characteristics provided by the material of the rod are no longer tributary those of the fork. Therefore, by way of example, the inertial function of the rod and the tribological function of the fork can, advantageously according to the invention, be decoupled.

Conformément à d'autres caractéristiques avantageuses de l'invention :

  • le premier matériau et le deuxième matériau sont différents ;
  • au moins un des premier et deuxième matériaux est également paramagnétique afin de réduire la sensibilité de l'ancre aux champs magnétiques ;
  • le premier matériau de la baguette est formé en un matériau dont la masse volumique est inférieure à 8.103 kg.m-3 afin de limiter l'inertie de l'ancre ;
  • le premier matériau de la baguette est choisi parmi le groupe comportant du silicium, du silicium revêtu d'une couche de dioxyde de silicium, du silicium revêtu d'une couche de diamant, du titane, de l'aluminium, du magnésium, de l'acier, un alliage de cuivre, un alliage de cobalt austénitique ou un alliage de nickel austénitique ;
  • le deuxième matériau de la fourchette est choisi parmi le groupe comportant du silicium, du silicium revêtu d'une couche de dioxyde de silicium, du silicium revêtu d'une couche de diamant, de l'alliage Cu-Be et du métal sous forme amorphe ;
  • la fourchette est rapportée sur la baguette au moyen d'un tenon afin de surélever ladite fourchette par rapport au plan de la baguette.
According to other advantageous features of the invention:
  • the first material and the second material are different;
  • at least one of the first and second materials is also paramagnetic to reduce the sensitivity of the anchor to magnetic fields;
  • the first material of the rod is formed of a material whose density is less than 8.10 3 kg.m -3 in order to limit the inertia of the anchor;
  • the first material of the rod is selected from the group consisting of silicon, silicon coated with a layer of silicon dioxide, silicon coated with a diamond layer, titanium, aluminum, magnesium, silicon steel, a copper alloy, an austenitic cobalt alloy or an austenitic nickel alloy;
  • the second material of the fork is selected from the group comprising silicon, silicon coated with a layer of silicon dioxide, silicon coated with a diamond layer, Cu-Be alloy and the metal in amorphous form ;
  • the fork is attached to the rod by means of a tenon to elevate said fork relative to the plane of the rod.

L'invention se rapporte également à une pièce d'horlogerie caractérisée en ce qu'elle comporte un système d'échappement conforme à l'une des variantes précédentes.The invention also relates to a timepiece characterized in that it comprises an exhaust system according to one of the preceding variants.

Description sommaire des dessinsBrief description of the drawings

D'autres particularités et avantages ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence aux dessins annexés, dans lesquels :

  • la figure 1 est une représentation en perspective d'une ancre selon l'invention ;
  • la figure 2 est une représentation en coupe de la figure 1.
Other particularities and advantages will emerge clearly from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the appended drawings, in which:
  • the figure 1 is a perspective representation of an anchor according to the invention;
  • the figure 2 is a sectional representation of the figure 1 .

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

Dans l'exemple illustré aux figures 1 et 2, on peut voir un système d'échappement 1 pour une pièce d'horlogerie. Comme visible à la figure 2 en coupe, le système d'échappement 1 comprend notamment une ancre 3 et un plateau 5. Le plateau 5 est préférentiellement chassé sur l'axe de balancier 2 et comporte un petit plateau 4 muni d'une encoche 6 et un grand plateau 8 muni d'une cheville 7.In the example shown in Figures 1 and 2 , we can see an exhaust system 1 for a timepiece. As visible at figure 2 in section, the exhaust system 1 comprises in particular an anchor 3 and a plate 5. The plate 5 is preferably driven on the balance shaft 2 and comprises a small plate 4 provided with a notch 6 and a large plate 8 provided with ankle 7.

L'ancre 3 comprend de manière préférée une baguette 9 formée par un premier matériau qui peut être choisi suivant sa sensibilité désirée aux champs magnétiques et/ou son inertie et/ou son usinabilité et/ou son aspect.The anchor 3 preferably comprises a rod 9 formed by a first material which can be selected according to its desired sensitivity to the magnetic fields and / or its inertia and / or machinability and / or appearance.

Ainsi, dans le cas où une inertie minimale est recherchée pour l'ancre 3, la matériau de la baguette 9 comportera préférentiellement une masse volumique inférieure à 8.103 kg.m-3.Thus, in the case where a minimum inertia is sought for the anchor 3, the material of the rod 9 will preferably have a density of less than 8 × 10 3 kg.m -3 .

Préférentiellement, le matériau de la baguette 9 est également paramagnétique afin de réduire la sensibilité de l'ancre 3 aux champs magnétiques.Preferably, the material of the rod 9 is also paramagnetic in order to reduce the sensitivity of the anchor 3 to the magnetic fields.

Un tel matériau de baguette 9 peut être, par exemple, du silicium revêtu ou non, du titane, de l'aluminium, du magnésium, de l'acier, un alliage de cuivre, un alliage de cobalt austénitique ou un alliage de nickel austénitique.Such a strip material 9 may be, for example, coated or uncoated silicon, titanium, aluminum, magnesium, steel, a copper alloy, an austenitic cobalt alloy or an austenitic nickel alloy. .

On comprendra également que, pour des aspects esthétiques, la baguette 9 puisse également être formée par un métal précieux comme de l'or ou du platine ou un de leurs alliages.It will also be understood that, for aesthetic aspects, the rod 9 may also be formed by a precious metal such as gold or platinum or one of their alloys.

La baguette 9 comporte des bras 11 et 13 destinés à recevoir des palettes 10 et 12 afin de coopérer avec au moins une roue d'échappement (non représentée). Entre ces deux bras 11 et 13, est montée la tige d'ancre 14 afin de monter de manière pivotante l'ancre 3. La tige 14 peut être réalisée, par exemple, dans un matériau comme de l'acier, du laiton ou du maillechort. Enfin, à l'extrémité opposée aux bras 11 et 13, la baguette 9 comporte un dard 15 et une fourchette 17.The rod 9 comprises arms 11 and 13 intended to receive pallets 10 and 12 in order to cooperate with at least one escape wheel (not shown) Between these two arms 11 and 13, is mounted the anchor rod 14 to pivotally mount the anchor 3. The rod 14 can be made, for example, in a material such as steel, brass or aluminum. nickel. Finally, at the end opposite the arms 11 and 13, the rod 9 comprises a dart 15 and a fork 17.

Avantageusement selon l'invention, le dard 15 est venu de forme avec la baguette 9 et, préférentiellement, en prolongement de cette dernière. Le dard 15 est destiné à coopérer avec le petit plateau 4 afin d'empêcher les déplacements accidentels de la fourchette 17.Advantageously according to the invention, the dart 15 has come in shape with the rod 9 and, preferably, an extension of the latter. The dart 15 is intended to cooperate with the small plate 4 to prevent accidental movements of the fork 17.

La fourchette 17 comporte de manière préférée une planche 19 formée par un deuxième matériau, préférentiellement, différent du premier matériau de la baguette 9 et destiné à autoriser l'amélioration des qualités tribologiques de la fourchette 17 en évitant de nuire à l'inertie globale de l'ancre 3.The fork 17 preferably comprises a board 19 formed by a second material, preferably different from the first material of the rod 9 and intended to allow the improvement of the tribological qualities of the fork 17 while avoiding to impair the overall inertia of the anchor 3.

Préférentiellement, le matériau de la fourchette 17 est également paramagnétique afin de réduire la sensibilité de l'ancre 3 aux champs magnétiques.Preferably, the material of the fork 17 is also paramagnetic in order to reduce the sensitivity of the anchor 3 to the magnetic fields.

Le matériau de la fourchette 17 est idéalement un matériau présentant une faible usure et un faible coefficient de frottement en association avec la cheville 7 du grand plateau 8. Un tel matériau peut être par exemple du silicium, du silicium revêtu d'une couche de dioxyde de silicium, du silicium revêtu d'une couche de diamant, de l'alliage Cu-Be ou un métal sous forme amorphe.The material of the fork 17 is ideally a material having a low wear and a low coefficient of friction in association with the pin 7 of the large plate 8. Such a material may be for example silicon, silicon coated with a layer of dioxide silicon, silicon coated with a diamond layer, Cu-Be alloy or a metal in amorphous form.

La fourchette 17 est préférentiellement montée à l'aplomb du dard 15 et comprend deux cornes 16 et 18 destinées à entrer en contact avec la cheville 7 de grand plateau 8 afin, suivant la rotation de la cheville 7, d'entraîner l'ancre 3 en pivotement autour de sa tige 14 selon un mouvement de va-et-vient.The fork 17 is preferably mounted directly above the stinger 15 and comprises two horns 16 and 18 intended to come into contact with the pin 7 of the large plate 8 so that, following the rotation of the pin 7, the anchor 3 pivoting about its rod 14 in a back and forth motion.

Avantageusement selon l'invention, en découplant la fabrication de la fourchette 17 de celle de la baguette 9, on permet l'optimisation de l'ancre 3 entre la sensibilité désirée aux champs magnétique et/ou l'inertie désirée et/ou l'usinabilité et/ou l'aspect de la baguette 9, d'une part, et, d'autre part la faible usure et le faible coefficient de frottement en association avec la cheville 7, de la fourchette 17.Advantageously according to the invention, by decoupling the manufacture of the fork 17 from that of the rod 9, the optimization of the anchor 3 is allowed. between the desired sensitivity to the magnetic fields and / or the desired inertia and / or machinability and / or the appearance of the rod 9, on the one hand, and the low wear and the low coefficient of friction in association with the ankle 7, of the fork 17.

Cela permet également de manière avantageuse de diminuer le coût de fabrication de l'ancre 3 en minimisant la grandeur de la partie la plus technique qu'est la fourchette 17. A titre d'exemple, la baguette 9 pourrait être obtenue à l'aide d'un procédé dont la précision est moindre que celui utilisé pour réaliser la fourchette 17. Ainsi, la fourchette 17 pourrait, par exemple, être obtenue par gravage d'une plaquette de silicium ou un électroformage du type LIGA ou même une mise en forme mécanique d'un métal sous forme amorphe.This also advantageously makes it possible to reduce the manufacturing cost of the anchor 3 by minimizing the size of the most technical part that is the fork 17. By way of example, the rod 9 could be obtained using a method whose accuracy is less than that used to achieve the fork 17. Thus, the fork 17 could, for example, be obtained by etching a silicon wafer or electroforming LIGA type or even formatting mechanics of a metal in amorphous form.

De manière préférée, la fourchette 17 est rapportée sur la baguette 9 au moyen d'un tenon 20 afin de surélever la planche de ladite fourchette par rapport au plan de la baguette 9. Le tenon 20 peut être réalisé dans un matériau comme de l'acier, du laiton ou du maillechort et être, par exemple, chassé et/ou collé et/ou soudé dans la baguette 9 et la fourchette 17.Preferably, the fork 17 is attached to the rod 9 by means of a tenon 20 in order to raise the board of said fork relative to the plane of the rod 9. The post 20 may be made of a material such as steel, brass or nickel silver and be, for example, driven out and / or glued and / or welded in the rod 9 and the fork 17.

Bien entendu, la présente invention ne se limite pas à l'exemple illustré mais est susceptible de diverses variantes et modifications qui apparaîtront à l'homme de l'art.Of course, the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.

En particulier, les formes de l'ancre 3 et/ou du plateau 5 peuvent être différentes. L'ancre 3 peut ainsi comporter, par exemple, au moins un troisième bras destiné à recevoir au moins une troisième palette pour l'application de l'invention à un système d'échappement du type coaxial.In particular, the shapes of the anchor 3 and / or the plate 5 may be different. The anchor 3 may thus comprise, for example, at least a third arm for receiving at least a third pallet for the application of the invention to a coaxial type exhaust system.

Il peut également être imaginé d'adapter la forme de la fourchette 17 et, plus précisément, celle des cornes 16 et 18 pour s'adapter à un autre type de plateau ou à un autre type de matériau de la cheville 7 pour éviter l'usure et les collements lors des contacts successifs.It can also be imagined to adapt the shape of the fork 17 and, more precisely, that of the horns 16 and 18 to adapt to another type of tray or to another type of material of the peg 7 to avoid the wear and bonding during successive contacts.

Enfin, les premier et deuxième matériaux différents peuvent également s'entendre en une différence de revêtement extérieur alors que leur âme est identique. A titre d'exemple, la baguette 9 pourrait être ainsi formée de silicium revêtu de dioxyde de silicium et la fourchette 17 de silicium revêtu de diamant sans sortir du fait que le premier matériau de la baguette 9 est différent du deuxième matériau de la fourchette 17. La même réflexion vaut également pour l'un des matériaux dont la nature est identique à l'âme de l'autre matériau, l'autre matériau étant le seul à être revêtu.Finally, the first and second different materials can also be understood as a difference in external coating while their soul is identical. By way of example, the rod 9 could thus be formed of silicon-coated silicon and the diamond-coated silicon fork 17 without departing from the fact that the first material of the rod 9 is different from the second material of the fork 17. The same reflection also applies to one of the materials whose nature is identical to the core of the other material, the other material being the only one to be coated.

Claims (8)

Système d'échappement (1) comportant une ancre (3) munie d'une fourchette (17) destinée à coopérer avec une cheville (7) montée sur un plateau (5) caractérisé en ce que la baguette (9) de l'ancre (3) comporte un dard (15) venu de matière dans un premier matériau et en ce que la fourchette (17) est formée par un deuxième matériau et est rapportée sur la baguette (9) de l'ancre (3) afin d'optimiser les fonctions respectives de la fourchette (17) et de la baguette (9).Exhaust system (1) comprising an anchor (3) provided with a fork (17) intended to cooperate with an anchor (7) mounted on a plate (5), characterized in that the rod (9) of the anchor (3) comprises a dart (15) made of material in a first material and that the fork (17) is formed by a second material and is attached to the rod (9) of the anchor (3) in order to optimize the respective functions of the fork (17) and the rod (9). Système d'échappement (1) selon la revendication précédente, caractérisé en ce que le premier matériau et le deuxième matériau sont différents.Exhaust system (1) according to the preceding claim, characterized in that the first material and the second material are different. Système d'échappement (1) selon la revendication 1 ou 2, caractérisé en ce qu'au moins un des premier et deuxième matériaux est également paramagnétique afin de réduire la sensibilité de l'ancre (3) aux champs magnétiques.Exhaust system (1) according to claim 1 or 2, characterized in that at least one of the first and second materials is also paramagnetic in order to reduce the sensitivity of the anchor (3) to the magnetic fields. Système d'échappement (1) selon l'une des revendications précédentes, caractérisé en ce que le premier matériau de la baguette (9) est formé en un matériau dont la masse volumique est inférieure à 8.103 kg.m-3 afin de limiter l'inertie de l'ancre (3).Exhaust system (1) according to one of the preceding claims, characterized in that the first material of the rod (9) is formed of a material whose density is less than 8.10 3 kg.m -3 in order to limit the inertia of the anchor (3). Système d'échappement (1) selon l'une des revendications précédentes, caractérisé en ce que le premier matériau de la baguette (9) est choisi parmi le groupe comportant du silicium, du silicium revêtu d'une couche de dioxyde de silicium, du silicium revêtu d'une couche de diamant, du titane, de l'aluminium, du magnésium, de l'acier, un alliage de cuivre, un alliage de cobalt austénitique ou un alliage de nickel austénitique.Exhaust system (1) according to one of the preceding claims, characterized in that the first material of the rod (9) is selected from the group comprising silicon, silicon coated with a layer of silicon dioxide, silicon coated with a diamond layer, titanium, aluminum, magnesium, steel, a copper alloy, an austenitic cobalt alloy or an austenitic nickel alloy. Système d'échappement (1) selon l'une des revendications précédentes, caractérisé en ce que le deuxième matériau de la fourchette (17) est choisi parmi le groupe comportant du silicium, du silicium revêtu d'une couche de dioxyde de silicium, du silicium revêtu d'une couche de diamant, de l'alliage Cu-Be et du métal sous forme amorphe.Exhaust system (1) according to one of the preceding claims, characterized in that the second material of the fork (17) is selected from the group comprising silicon, coated silicon a silicon dioxide layer, diamond coated silicon, Cu-Be alloy and amorphous metal. Système d'échappement (1) selon l'une des revendications précédentes, caractérisé en ce que la fourchette (17) est rapportée sur la baguette (9) au moyen d'un tenon (20) afin de surélever ladite fourchette par rapport au plan de la baguette (9).Exhaust system (1) according to one of the preceding claims, characterized in that the fork (17) is attached to the rod (9) by means of a pin (20) in order to raise said fork relative to the plane of the baguette (9). Pièce d'horlogerie caractérisée en ce qu'elle comporte un système d'échappement (1) conforme à l'une des revendications précédentes.Timepiece characterized in that it comprises an exhaust system (1) according to one of the preceding claims.
EP09175274A 2009-11-06 2009-11-06 Anchor for clock escapement system Withdrawn EP2320280A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH01720/09A CH702202B1 (en) 2009-11-06 2009-11-06 Escapement anchor.
EP09175274A EP2320280A1 (en) 2009-11-06 2009-11-06 Anchor for clock escapement system

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EP09175274A EP2320280A1 (en) 2009-11-06 2009-11-06 Anchor for clock escapement system

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EP2320280A1 true EP2320280A1 (en) 2011-05-11

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Cited By (4)

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EP2557460A1 (en) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallic pallets with polymer horns
EP2631721A1 (en) * 2012-02-23 2013-08-28 Richemont International S.A. Diamond-covered titanium clock components
EP2952971A1 (en) 2014-06-05 2015-12-09 Nivarox-FAR S.A. Pallet for escapement mechanism of a watch movement
CN109814364A (en) * 2017-11-22 2019-05-28 尼瓦罗克斯-法尔股份公司 The escapement lever of escapement for watch and clock movement

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EP2813906A1 (en) * 2013-06-12 2014-12-17 Nivarox-FAR S.A. Part for clockwork

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FR2203104A1 (en) * 1972-10-12 1974-05-10 Favre Et Cie Sa Marc
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US179769A (en) * 1876-07-11 champod
CH125519A (en) * 1927-01-15 1928-04-16 Ditisheim & Cie Fabriques Vulc Anchor with fork and dart for double-plate exhaust.
FR2203104A1 (en) * 1972-10-12 1974-05-10 Favre Et Cie Sa Marc
EP0732635A1 (en) * 1995-03-17 1996-09-18 C.S.E.M. Centre Suisse D'electronique Et De Microtechnique Sa Micromechanical element and process for its manufacture

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2557460A1 (en) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metallic pallets with polymer horns
EP2557461A1 (en) * 2011-08-12 2013-02-13 Nivarox-FAR S.A. Metal anchor with polymer horns
CN102955418A (en) * 2011-08-12 2013-03-06 尼瓦洛克斯-法尔股份有限公司 Metal pallets with polymer horns
US9015921B2 (en) 2011-08-12 2015-04-28 Nivarox-Far S.A. Metal pallets with polymer horns
CN102955418B (en) * 2011-08-12 2015-06-10 尼瓦洛克斯-法尔股份有限公司 Metal pallets with polymer horns
EP2631721A1 (en) * 2012-02-23 2013-08-28 Richemont International S.A. Diamond-covered titanium clock components
EP2952971A1 (en) 2014-06-05 2015-12-09 Nivarox-FAR S.A. Pallet for escapement mechanism of a watch movement
JP2015230309A (en) * 2014-06-05 2015-12-21 ニヴァロックス−ファー ソシエテ アノニム Pallet lever for escapement mechanism of watch movement
CN105319938A (en) * 2014-06-05 2016-02-10 尼瓦洛克斯-法尔股份有限公司 Pallet lever for the escapement mechanism of a watch movement
US9575465B2 (en) 2014-06-05 2017-02-21 Nivarox-Far S.A. Pallet lever for the escapement mechanism of a watch movement
CN105319938B (en) * 2014-06-05 2018-02-13 尼瓦洛克斯-法尔股份有限公司 Escapement lever for the escapement of timepiece movement
CN109814364A (en) * 2017-11-22 2019-05-28 尼瓦罗克斯-法尔股份公司 The escapement lever of escapement for watch and clock movement
EP3489763A1 (en) 2017-11-22 2019-05-29 Nivarox-FAR S.A. Pallet for watch movement escapement
US11073795B2 (en) 2017-11-22 2021-07-27 Nivarox-Far S.A. Pallets for the escapement of a clock movement

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