EP1983391B1 - Lever escapement for timepiece - Google Patents

Lever escapement for timepiece Download PDF

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Publication number
EP1983391B1
EP1983391B1 EP07106375A EP07106375A EP1983391B1 EP 1983391 B1 EP1983391 B1 EP 1983391B1 EP 07106375 A EP07106375 A EP 07106375A EP 07106375 A EP07106375 A EP 07106375A EP 1983391 B1 EP1983391 B1 EP 1983391B1
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EP
European Patent Office
Prior art keywords
pallet
wheel
impulse
pin
escape
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP07106375A
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German (de)
French (fr)
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EP1983391A1 (en
Inventor
Andrés Cabezas Jurin
Thierry Conus
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ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
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.)
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Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to AT07106375T priority Critical patent/ATE456079T1/en
Priority to EP07106375A priority patent/EP1983391B1/en
Priority to DE602007004447T priority patent/DE602007004447D1/en
Priority to JP2008106170A priority patent/JP5160288B2/en
Priority to CN2008101258299A priority patent/CN101290505B/en
Priority to US12/105,492 priority patent/US7553068B2/en
Publication of EP1983391A1 publication Critical patent/EP1983391A1/en
Priority to HK09103328.8A priority patent/HK1125191A1/en
Application granted granted Critical
Publication of EP1983391B1 publication Critical patent/EP1983391B1/en
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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

Definitions

  • the present invention relates to an anchor escapement for a timepiece comprising an escape wheel equipped with at least one wheel, a balance plate carrying a plateau pin and an anchor arranged to cooperate with the plateau pin, this anchor being equipped with first and second pallets of rest and a pallet of impulse, said pallets being arranged to cooperate with the teeth of the escape wheel.
  • An anchor escapement broadly in line with the description given in the above paragraph is known and described in the book entitled "La Montre: Principles and Methods of Manufacture” by George Daniels, Editions Scriptar SA, La Convention, Lausanne 1993. This escapement is exposed in pages 247 and 248 of the said work. As can be understood from reading this document, the escapement further comprises a second integral pulse pallet of the balance plate and cooperating with the escape wheel. An exhaust of this type is also known from EP-A-0 018 796 .
  • the anchor escapement for a timepiece according to the present invention is defined by claim 1 of the patent.
  • the figure 1 is a plan view of the exhaust mechanism according to a first embodiment of the present invention.
  • This exhaust includes an exhaust mobile 60 equipped with a single escape wheel 2. In known manner, this wheel is driven by a train itself driven by a barrel, cog and barrel not being represented at the figure 1 . When the wheel 2 is free, it rotates counterclockwise as indicated by the arrow 40.
  • the exhaust further comprises a plate 3 which is associated with a not shown balance spring.
  • the plate 3 carries a pin 4.
  • An anchor 5 mounted on a pivot 36 is arranged to cooperate with the pin 4 of the plate 3.
  • the anchor carries a rod 11 terminated by a fork 12 in which can penetrate the anchor 4 of the plate 3.
  • the anchor is equipped with first and second pallets of rest 6 and 7 and a pallet of pulse 8, these pallets being arranged to cooperate with the teeth 20, 21, 22. the escape wheel 2.
  • the present invention is original in that the anchor 5 drives an auxiliary mobile 9.
  • the latter carries a second pulse pallet 10 arranged to cooperate with the teeth 21, 22, 23, ... of the escape wheel 2.
  • a disk 13 as an auxiliary mobile.
  • This disc 13 is articulated on a pivot 14 and carries at its periphery said second auxiliary pallet 10 and a pin 15 which is trapped in an opening oblong 16 practiced in the anchor 5.
  • the pin 15 and the opening 16 thus form a movable hinge like a toggle.
  • the auxiliary mobile is not limited to the execution described above. Indeed, and without it being necessary to show it in a drawing, this mobile 9 could be a rocker articulated on a pivot bearing on the one hand said second pulse pallet 10 and on the other hand a toothed sector meshing with a rake attached to the anchor 5.
  • the figure 2 is a plan view of a second embodiment of the invention.
  • the escape wheel 60 is not a single wheel, but has first and second escape wheels 1 and 2 integral with each other and mounted coaxially on one another.
  • the first impulse pallet 8 cooperates with the first wheel 1 while the second impulse pallet 10 and the first and second pallet 6 and 7 cooperate with the second wheel 2.
  • the same innovation that characterized the first embodiment namely the implementation of the auxiliary mobile 9 controlled by the anchor 5.
  • the plate 3 rotates in the direction of the arrow 41.
  • the second escape wheel 2 is at rest by its tooth 20 on the first pallet of rest 6 of the anchor 5.
  • the rod 11 of the anchor 5 is in pressing on a first locking pin 50.
  • the pin 4 of the plate 3 comes into contact with the fork 12 of the rod 11. This is the beginning of the release of the wheel 2.
  • the plate 3 continued its course in the direction of the arrow 41.
  • the pin 4 has driven the anchor 5 in the direction of the arrow 42, forcing the pallet rest 6 to slide along the tooth 20 of the wheel 2 to get out of his grip.
  • the oblong hole 16 of the anchor 5 drives the pin 15 of the disk 13 to rotate the disk 13 in the direction of the arrow 43.
  • the second pulse pallet 10 of the disk 13 is thus brought to cut the trajectory of the tooth 22 of the wheel 2. This is the end of the release and the beginning of the release of the wheel 2.
  • the anchor 5 continues to swing in the direction of the arrow 42 so that its second pallet 7 breaks the trajectory of the teeth of the wheel 2 causing its tooth 21 to abut against this pallet 7. This is the idle phase which blocks the wheel 2.
  • FIG 9 presents the same situation as that shown in figure 8 except that the pin 44 returning in the direction of the arrow 44 has come into contact with the fork 12 of the anchor 5. This is the beginning of the release of the pallet rest 7.
  • the peg 4 continuing its course in the direction of the plate 3, takes off the rod 11 of the limiting pin 51, the anchor 5 then rotating in the direction of the arrow 45. This movement slides the pallet rest 7 along the tooth 21 of the wheel 2 to get out of his grip.
  • the oblong hole 16 of the anchor 5 drives the pin 15 of the disc 13 to rotate the latter in the direction of the arrow 46. This is the end of the release and the beginning of the release of the wheel 1 secured to the wheel 2.
  • the figure 11 shows that the wheel 1, driven by the gear of the timepiece, has rotated in the direction of the arrow 40.
  • the tooth 31 of the wheel 1 comes into contact with the first pulse pallet 8 equipping the anchor 5 This is the pulse start that is transmitted to the plate 3 by the rod 11 (which rotates in the direction of the arrow 45), the fork 12 and the pin 4.
  • the plate is then restarted in the direction of the arrow 44.
  • the figure 12 presents the end of the impulse of the tooth 31 of the wheel 1 on the impulse pallet 8 of the anchor 5. Continuing to turn in the direction of the arrow 45 the anchor 5 sees its first pallet of rest 6 cut the trajectory of the teeth of the wheel 2. Through the pin 15 pin - hole oblong 16, the disc 13 progresses in the direction of the arrow 46 to occupy a position roughly similar to that shown in FIG. figure 3 that is to say, the one she occupied at the beginning of the oscillation reviewed here.
  • the figure 14 shows the total rest of the tooth 27 on the pallet 6.
  • the pulling effect exerted by the rotational force of the wheel 2 causes the tip of the tooth 27 to scale along the pallet of rest 6.
  • the rod 11 of the 5 anchor comes to rest against the limiting pin 50. From this moment, the plate travels its additional arc in the direction of the arrow 44 and turns back in the opposite direction (arrow 41).
  • the ankle 4 again enters the range 12, we then find the situation described in connection with the figure 3 and a new cycle or oscillation can begin again.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Table Equipment (AREA)
  • Adornments (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Transmission Devices (AREA)
  • Dowels (AREA)
  • Piles And Underground Anchors (AREA)
  • Switches With Compound Operations (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Prostheses (AREA)
  • Electromechanical Clocks (AREA)

Abstract

The escapement has an escape wheel set (60) fitted with escape wheels (1, 2) that are secured to each other, and a balance roller (3) carrying an impulse pin (4). A pallet assembly (5) cooperates with the impulse pin and is fitted with locking pallet stones (6, 7) and an impulse pallet stone (8). The impulse and locking pallet stones cooperate with teeth of the escape wheels. The pallet assembly drives an auxiliary wheel set (9) carrying another impulse pallet stone (10) that cooperates with the teeth of the escape wheel.

Description

La présente invention est relative à un échappement à ancre pour pièce d'horlogerie comprenant un mobile d'échappement équipé d'au moins une roue, un plateau de balancier portant une cheville de plateau et une ancre arrangée pour coopérer avec la cheville de plateau, cette ancre étant équipée de première et seconde palettes de repos et d'une palette d'impulsion, lesdites palettes étant arrangées pour coopérer avec les dents de la roue d'échappement.The present invention relates to an anchor escapement for a timepiece comprising an escape wheel equipped with at least one wheel, a balance plate carrying a plateau pin and an anchor arranged to cooperate with the plateau pin, this anchor being equipped with first and second pallets of rest and a pallet of impulse, said pallets being arranged to cooperate with the teeth of the escape wheel.

Un échappement à ancre répondant dans les grandes lignes à la description donnée au paragraphe ci-dessus est connu et décrit dans l'ouvrage intitulé: « La Montre: principes et méthodes de fabrication » de George Daniels, Editions Scriptar S.A., La Convention, Lausanne 1993. Cet échappement est exposé dans les pages 247 et 248 dudit ouvrage. Comme on peut le comprendre à la lecture de ce document, l'échappement comprend en outre une seconde palette d'impulsion solidaire du plateau de balancier et coopérant avec la roue d'échappement. Un échappement de ce type est également connu du brevet EP-A-0 018 796 .An anchor escapement broadly in line with the description given in the above paragraph is known and described in the book entitled "La Montre: Principles and Methods of Manufacture" by George Daniels, Editions Scriptar SA, La Convention, Lausanne 1993. This escapement is exposed in pages 247 and 248 of the said work. As can be understood from reading this document, the escapement further comprises a second integral pulse pallet of the balance plate and cooperating with the escape wheel. An exhaust of this type is also known from EP-A-0 018 796 .

L'échappement à ancre pour pièce d'horlogerie selon la présente invention est défini par la revendication 1 du brevet.The anchor escapement for a timepiece according to the present invention is defined by claim 1 of the patent.

L'invention va être expliquée maintenant en détail ci-dessous par deux modes d'exécution donnés en exemples non limitatifs, ces exécutions étant illustrées par les dessins annexés dans lesquels:

  • la figure 1 est une vue en plan d'un premier mode d'exécution de l'échappement selon l'invention,
  • la figure 2 est une vue en plan d'un second mode d'exécution de l'échappement selon l'invention où est illustré le début du dégagement de la roue d'échappement, et
  • les figures 3 à 14 sont des vues en plan expliquant les phases de fonctionnement de l'échappement selon le second mode d'exécution de l'invention, ces phases couvrant une oscillation complète du plateau de balancier.
The invention will now be explained in detail below by two embodiments given by way of nonlimiting examples, these embodiments being illustrated by the appended drawings in which:
  • the figure 1 is a plan view of a first embodiment of the escapement according to the invention,
  • the figure 2 is a plan view of a second embodiment of the exhaust according to the invention which shows the beginning of the release of the escape wheel, and
  • the Figures 3 to 14 are plan views explaining the operating phases of the exhaust according to the second embodiment of the invention, these phases covering a complete oscillation of the balance plate.

La figure 1 est une vue en plan du mécanisme d'échappement selon un premier mode d'exécution de la présente invention. Cet échappement comprend un mobile d'échappement 60 équipé d'une seule roue d'échappement 2. De manière connue, cette roue est entraînée par un rouage entraîné lui-même par un barillet, rouage et barillet n'étant pas représentés à la figure 1. Quand la roue 2 est libre, elle tourne dans le sens antihoraire comme indiqué par la flèche 40. L'échappement comprend encore un plateau 3 auquel est associé un balancier spiral non représenté. Le plateau 3 porte une cheville 4. Une ancre 5 montée sur un pivot 36 est arrangée pour coopérer avec la cheville 4 du plateau 3. De manière connue en soi, l'ancre porte une baguette 11 terminée par une fourchette 12 dans laquelle peut pénétrer la cheville 4 du plateau 3. L'ancre est équipée de première et seconde palettes de repos 6 et 7 et d'une palette d'impulsion 8, ces palettes étant arrangées pour coopérer avec les dents 20, 21, 22... de la roue d'échappement 2.The figure 1 is a plan view of the exhaust mechanism according to a first embodiment of the present invention. This exhaust includes an exhaust mobile 60 equipped with a single escape wheel 2. In known manner, this wheel is driven by a train itself driven by a barrel, cog and barrel not being represented at the figure 1 . When the wheel 2 is free, it rotates counterclockwise as indicated by the arrow 40. The exhaust further comprises a plate 3 which is associated with a not shown balance spring. The plate 3 carries a pin 4. An anchor 5 mounted on a pivot 36 is arranged to cooperate with the pin 4 of the plate 3. In a manner known per se, the anchor carries a rod 11 terminated by a fork 12 in which can penetrate the anchor 4 of the plate 3. The anchor is equipped with first and second pallets of rest 6 and 7 and a pallet of pulse 8, these pallets being arranged to cooperate with the teeth 20, 21, 22. the escape wheel 2.

Comme le montre bien la figure 1, la présente invention est originale en ce que l'ancre 5 entraîne un mobile auxiliaire 9. Ce dernier porte une seconde palette d'impulsion 10 arrangée pour coopérer avec les dents 21, 22, 23,...de la roue d'échappement 2.As the figure 1 , the present invention is original in that the anchor 5 drives an auxiliary mobile 9. The latter carries a second pulse pallet 10 arranged to cooperate with the teeth 21, 22, 23, ... of the escape wheel 2.

Plus précisément, le mode d'exécution donné ici en exemple propose un disque 13 comme mobile auxiliaire. Ce disque 13 est articulé sur un pivot 14 et porte à sa périphérie ladite seconde palette auxiliaire 10 ainsi qu'une goupille 15 laquelle se trouve prisonnière d'une ouverture oblongue 16 pratiquée dans l'ancre 5. La goupille 15 et l'ouverture 16 forment ainsi une charnière mobile à l'instar d'une genouillère.More specifically, the embodiment given here as an example proposes a disk 13 as an auxiliary mobile. This disc 13 is articulated on a pivot 14 and carries at its periphery said second auxiliary pallet 10 and a pin 15 which is trapped in an opening oblong 16 practiced in the anchor 5. The pin 15 and the opening 16 thus form a movable hinge like a toggle.

Le mobile auxiliaire n'est pas limité à l'exécution décrite ci-dessus. En effet et sans qu'il soit nécessaire de le montrer sur un dessin, ce mobile 9 pourrait être une bascule articulée sur un pivot portant d'une part ladite seconde palette d'impulsion 10 et d'autre part un secteur denté engrenant avec un râteau solidaire de l'ancre 5.The auxiliary mobile is not limited to the execution described above. Indeed, and without it being necessary to show it in a drawing, this mobile 9 could be a rocker articulated on a pivot bearing on the one hand said second pulse pallet 10 and on the other hand a toothed sector meshing with a rake attached to the anchor 5.

La figure 2 est une vue en plan d'un second mode d'exécution de l'invention. Ici le mobile d'échappement 60 n'est pas une roue unique, mais comporte des première et seconde roues d'échappement 1 et 2 solidaires l'une de l'autre et montées coaxialement l'une sur l'autre. Dans ce second mode d'exécution, la première palette d'impulsion 8 coopère avec la première roue 1 alors que la seconde palette d'impulsion 10 ainsi que les première et seconde palettes de repos 6 et 7 coopèrent avec la seconde roue 2. On retrouve ici la même innovation qui caractérisait le premier mode d'exécution, à savoir la mise en oeuvre du mobile auxiliaire 9 commandé par l'ancre 5.The figure 2 is a plan view of a second embodiment of the invention. Here the escape wheel 60 is not a single wheel, but has first and second escape wheels 1 and 2 integral with each other and mounted coaxially on one another. In this second embodiment, the first impulse pallet 8 cooperates with the first wheel 1 while the second impulse pallet 10 and the first and second pallet 6 and 7 cooperate with the second wheel 2. On found here the same innovation that characterized the first embodiment, namely the implementation of the auxiliary mobile 9 controlled by the anchor 5.

Les figures accompagnant la description du second mode d'exécution sont des vues en plan. Cependant et sans qu'il soit nécessaire de le montrer en coupe, on comprendra que l'ancre 5 avec la première palette d'impulsion 8 se situent au niveau de la première roue d'échappement 1, alors que les première et seconde palettes de repos 6 et 7 que porte l'ancre 5 s'étendent au niveau des dents 20, 21, 22, ... de la seconde roue d'échappement 2. On comprendra également que le mobile auxiliaire 9 est situé au niveau de la seconde roue d'échappement 2.The figures accompanying the description of the second embodiment are plan views. However, and without it being necessary to show it in section, it will be understood that the anchor 5 with the first impulse pallet 8 are located at the level of the first escape wheel 1, whereas the first and second pallets of rest 6 and 7 that the anchor 5 extends at the teeth 20, 21, 22, ... of the second escape wheel 2. It will also be understood that the auxiliary mobile 9 is located at the level of the second escape wheel 2.

On va expliquer maintenant le fonctionnement de l'échappement selon l'invention. On se servira pour cela du second mode d'exécution comportant deux roues d'échappement. Une oscillation complète du plateau 3 est illustrée aux figures 3 à 14. Les différentes phases de fonctionnement vont être passées en revue ci-dessous.We will now explain the operation of the exhaust according to the invention. This will be used for the second embodiment comprising two escape wheels. A complete oscillation of the plateau 3 is illustrated in FIGS. Figures 3 to 14 . The different phases of operation will be reviewed below.

En figure 3, le plateau 3 tourne dans le sens de la flèche 41. La seconde roue d'échappement 2 est au repos par sa dent 20 sur la première palette de repos 6 de l'ancre 5. La baguette 11 de l'ancre 5 est en appui sur une première goupille de limitation 50. La cheville 4 du plateau 3 entre en contact avec la fourchette 12 de la baguette 11. C'est le début du dégagement de la roue 2.In figure 3 , the plate 3 rotates in the direction of the arrow 41. The second escape wheel 2 is at rest by its tooth 20 on the first pallet of rest 6 of the anchor 5. The rod 11 of the anchor 5 is in pressing on a first locking pin 50. The pin 4 of the plate 3 comes into contact with the fork 12 of the rod 11. This is the beginning of the release of the wheel 2.

En figure 4, le plateau 3 a poursuivi sa course dans le sens de la flèche 41. La cheville 4 a entraîné l'ancre 5 dans le sens de la flèche 42, obligeant la palette de repos 6 à glisser le long de la dent 20 de la roue 2 pour sortir de son emprise. En tournant dans le sens de la flèche 42, le trou oblong 16 de l'ancre 5 entraîne la goupille 15 du disque 13 pour faire tourner ce dernier dans le sens de la flèche 43. La seconde palette d'impulsion 10 du disque 13 est amenée ainsi à couper la trajectoire de la dent 22 de la roue 2. C'est la fin du dégagement et le début de la libération de la roue 2.In figure 4 , the plate 3 continued its course in the direction of the arrow 41. The pin 4 has driven the anchor 5 in the direction of the arrow 42, forcing the pallet rest 6 to slide along the tooth 20 of the wheel 2 to get out of his grip. By turning in the direction of the arrow 42, the oblong hole 16 of the anchor 5 drives the pin 15 of the disk 13 to rotate the disk 13 in the direction of the arrow 43. The second pulse pallet 10 of the disk 13 is thus brought to cut the trajectory of the tooth 22 of the wheel 2. This is the end of the release and the beginning of the release of the wheel 2.

Comme on le voit en figure 5, la roue libérée 2 entraînée par le rouage de la pièce d'horlogerie tourne dans le sens de la flèche 40 et sa dent 22 est entrée en contact avec la palette d'impulsion 10. C'est la phase du début d'impulsion sur le disque 13.As we see in figure 5 , the released wheel 2 driven by the wheel of the timepiece rotates in the direction of the arrow 40 and its tooth 22 has come into contact with the pulse pallet 10. This is the phase of the pulse start on the disc 13.

En figure 6, la dent 22 de la roue 2 est en fin d'impulsion et a relancé le disque 13 dans le même sens qu'il avait jusqu'ici (flèche 43). La goupille 15 emprisonnée dans le trou oblong 16 entraîne l'ancre 5 dans le sens de la flèche 42, ce qui permet la relance simultanée du plateau 3 par sa cheville 4 dans le sens de la flèche 41. C'est la fin de l'impulsion sur le mobile supplémentaire 9.In figure 6 the tooth 22 of the wheel 2 is at the end of the impulse and has restarted the disc 13 in the same direction as it had hitherto (arrow 43). The pin 15 trapped in the oblong hole 16 drives the anchor 5 in the direction of the arrow 42, which allows the simultaneous restart of the plate 3 by its peg 4 in the direction of the arrow 41. This is the end of the impulse on the additional mobile 9.

Comme cela est apparent en figure 7, l'ancre 5 continue à basculer dans le sens de la flèche 42 de telle sorte que sa seconde palette de repos 7 coupe la trajectoire des dents de la roue 2 amenant sa dent 21 à venir buter contre cette palette 7. C'est la phase de prise de repos qui bloque la roue 2.As is apparent in figure 7 , the anchor 5 continues to swing in the direction of the arrow 42 so that its second pallet 7 breaks the trajectory of the teeth of the wheel 2 causing its tooth 21 to abut against this pallet 7. This is the idle phase which blocks the wheel 2.

Le repos total est montré en figure 8. La cheville 4 s'est échappée de la fourchette 12 contraignant la baguette 11 de l'ancre 5 à venir s'appuyer contre une seconde goupille de limitation 51. Le disque 13 est aussi au repos, sa goupille 15 reposant au fond de l'ouverture oblongue 16. La palette de repos 7, est engagée à fond sur la dent 21 par effet de tirage. A partir de ce moment le plateau parcourt son arc supplémentaire toujours dans le même sens 41 puis rebrousse chemin pour tourner dans le sens de la flèche 44.Total rest is shown in figure 8 . The pin 4 has escaped from the fork 12 forcing the rod 11 of the anchor 5 to bear against a second pin 51. The disk 13 is also at rest, its pin 15 resting at the bottom of the oblong opening 16. The rest pallet 7, is engaged fully on the tooth 21 by pulling effect. From this moment the tray travels its additional bow always in the same direction 41 and turns back to turn in the direction of the arrow 44.

La figure 9 présente la même situation que celle montrée en figure 8 sauf que la cheville 44 revenant dans le sens de la flèche 44 est entrée en contact avec la fourchette 12 de l'ancre 5. C'est le début du dégagement de la palette de repos 7.The figure 9 presents the same situation as that shown in figure 8 except that the pin 44 returning in the direction of the arrow 44 has come into contact with the fork 12 of the anchor 5. This is the beginning of the release of the pallet rest 7.

Comme la figure 10 le montre, la cheville 4 continuant sa course dans le sens du plateau 3, décolle la baguette 11 de la goupille de limitation 51, l'ancre 5 tournant alors dans le sens de la flèche 45. Ce mouvement fait glisser la palette de repos 7 le long de la dent 21 de la roue 2 pour sortir de son emprise. En tournant dans le sens de la flèche 45, le trou oblong 16 de l'ancre 5 entraîne la goupille 15 du disque 13 pour faire tourner ce dernier dans le sens de la flèche 46. C'est la fin du dégagement et le début de la libération de la roue 1 solidaire de la roue 2.As the figure 10 shows, the peg 4 continuing its course in the direction of the plate 3, takes off the rod 11 of the limiting pin 51, the anchor 5 then rotating in the direction of the arrow 45. This movement slides the pallet rest 7 along the tooth 21 of the wheel 2 to get out of his grip. By turning in the direction of the arrow 45, the oblong hole 16 of the anchor 5 drives the pin 15 of the disc 13 to rotate the latter in the direction of the arrow 46. This is the end of the release and the beginning of the release of the wheel 1 secured to the wheel 2.

La figure 11 montre que la roue 1, entraînée par le rouage de la pièce d'horlogerie, a tourné dans le sens de la flèche 40. La dent 31 de la roue 1 entre en contact avec la première palette d'impulsion 8 équipant l'ancre 5. C'est le début d'impulsion qui est transmise au plateau 3 par la baguette 11 (qui tourne dans le sens de la flèche 45), la fourchette 12 et la cheville 4. Le plateau est alors relancé dans le sens de la flèche 44.The figure 11 shows that the wheel 1, driven by the gear of the timepiece, has rotated in the direction of the arrow 40. The tooth 31 of the wheel 1 comes into contact with the first pulse pallet 8 equipping the anchor 5 This is the pulse start that is transmitted to the plate 3 by the rod 11 (which rotates in the direction of the arrow 45), the fork 12 and the pin 4. The plate is then restarted in the direction of the arrow 44.

La figure 12 présente la fin de l'impulsion de la dent 31 de la roue 1 sur la palette d'impulsion 8 de l'ancre 5. En continuant à tourner dans le sens de la flèche 45 l'ancre 5 voit sa première palette de repos 6 couper la trajectoire des dents de la roue 2. Par le truchement goupille 15 - trou oblong 16, le disque 13 progresse dans le sens de la flèche 46 pour occuper une position à peu près semblable à celle représentée en figure 3, c'est-à-dire celle qu'elle occupait au début de l'oscillation passée en revue ici.The figure 12 presents the end of the impulse of the tooth 31 of the wheel 1 on the impulse pallet 8 of the anchor 5. Continuing to turn in the direction of the arrow 45 the anchor 5 sees its first pallet of rest 6 cut the trajectory of the teeth of the wheel 2. Through the pin 15 pin - hole oblong 16, the disc 13 progresses in the direction of the arrow 46 to occupy a position roughly similar to that shown in FIG. figure 3 that is to say, the one she occupied at the beginning of the oscillation reviewed here.

Comme on peut le voir en figure 13, la roue 2 a continué à tourner dans le sens de la flèche 40 et sa dent 27 est entrée en contact avec la palette de repos 6 qui bloque la roue 2. La cheville 4 du plateau 3 est sur le point de quitter la fourchette 12. C'est une nouvelle phase de prise de repos.As we can see in figure 13 the wheel 2 has continued to rotate in the direction of the arrow 40 and its tooth 27 has come into contact with the rest pallet 6 which blocks the wheel 2. The pin 4 of the plate 3 is about to leave the fork 12 This is a new phase of rest taking.

La figure 14 montre le repos total de la dent 27 sur la palette 6. L'effet de tirage exercé par la force de rotation de la roue 2 fait escalader la pointe de la dent 27 le long de la palette de repos 6. La baguette 11 de l'ancre 5 vient s'appuyer contre la goupille de limitation 50. A partir de cet instant, le plateau parcourt son arc supplémentaire dans le sens de la flèche 44 puis rebrousse chemin dans le sens inverse (flèche 41). Quand la cheville 4 pénètre à nouveau dans la fourchette 12 on retrouve alors la situation décrite à propos de la figure 3 et un nouveau cycle ou oscillation peut recommencer.The figure 14 shows the total rest of the tooth 27 on the pallet 6. The pulling effect exerted by the rotational force of the wheel 2 causes the tip of the tooth 27 to scale along the pallet of rest 6. The rod 11 of the 5 anchor comes to rest against the limiting pin 50. From this moment, the plate travels its additional arc in the direction of the arrow 44 and turns back in the opposite direction (arrow 41). When the ankle 4 again enters the range 12, we then find the situation described in connection with the figure 3 and a new cycle or oscillation can begin again.

Claims (6)

  1. Lever escapement for a timepiece including an escape wheel set (60) fitted with at least one wheel (2), a balance roller (3) carrying an impulse pin (4) and a pallet assembly (5) arranged for cooperating with the impulse pin, said pallet assembly (5) being fitted with first (6) and second (7) locking pallet stones and an impulse pallet stone (8), said pallet stones being arranged for cooperating with the teeth (20, 21, 22) of the escape wheel (2), the pallet assembly (5) driving an auxiliary wheel set (9) carrying a second impulse pallet stone (10) arranged for cooperating with the teeth of said escape wheel (2) characterized in that said auxiliary wheels set (9) is pivoted about an axis different from said rolled (3).
  2. Escapement according to claim 1, characterized in that the escape wheel set (60) includes first (1) and second (2) coaxial wheels secured to each other, in that the first impulse pallet stone (8) cooperates with the first wheel (1) and in that the second impulse pallet stone (10) and the first and second locking pallet stones cooperate with the second wheel (2).
  3. Escapement according to claim 1 or 2, characterized in that the pallet assembly (5) carries a stick (11) ending in a fork (12) which can be penetrated by the impulse pin (4) of the roller (3).
  4. Escapement according to claim 1 or 2, characterized in that the auxiliary wheel (9) is a disc (13) hinged on a pivot (14) carrying said second impulse pallet stone (10) at the periphery thereof and a pin (15) trapped in an oblong aperture (16) made in the pallet assembly (5).
  5. Escapement according to claim 1 or 2, characterized in that the auxiliary wheel set (9) is a lever hinged on a pivot carrying said second impulse pallet stone (10) and a toothed sector meshing with a rack secured to the pallet assembly (5).
  6. Escapement according to claim 2, characterized in that the pallet assembly (5) is located on the first escape wheel (1), the first (6) and second (7) locking pallet stones extend at the level of the teeth (20, 21, 22) of the second escape wheel (2) and in that the auxiliary wheel set (9) is located at the level of said second escape wheel (2).
EP07106375A 2007-04-18 2007-04-18 Lever escapement for timepiece Active EP1983391B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT07106375T ATE456079T1 (en) 2007-04-18 2007-04-18 ANCHOR ESCAPEMENT FOR WATCHES
EP07106375A EP1983391B1 (en) 2007-04-18 2007-04-18 Lever escapement for timepiece
DE602007004447T DE602007004447D1 (en) 2007-04-18 2007-04-18 Anchor escapement for watches
JP2008106170A JP5160288B2 (en) 2007-04-18 2008-04-15 Escaper with watch lever
CN2008101258299A CN101290505B (en) 2007-04-18 2008-04-18 Lever escapement for timepiece
US12/105,492 US7553068B2 (en) 2007-04-18 2008-04-18 Lever escapement for a timepiece
HK09103328.8A HK1125191A1 (en) 2007-04-18 2009-04-08 Lever escapement for a timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07106375A EP1983391B1 (en) 2007-04-18 2007-04-18 Lever escapement for timepiece

Publications (2)

Publication Number Publication Date
EP1983391A1 EP1983391A1 (en) 2008-10-22
EP1983391B1 true EP1983391B1 (en) 2010-01-20

Family

ID=39027555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07106375A Active EP1983391B1 (en) 2007-04-18 2007-04-18 Lever escapement for timepiece

Country Status (7)

Country Link
US (1) US7553068B2 (en)
EP (1) EP1983391B1 (en)
JP (1) JP5160288B2 (en)
CN (1) CN101290505B (en)
AT (1) ATE456079T1 (en)
DE (1) DE602007004447D1 (en)
HK (1) HK1125191A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11846913B2 (en) 2018-04-17 2023-12-19 François Besse Escapement mechanism with locking anchor and timepiece provided with such an escapement mechanism

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Publication number Priority date Publication date Assignee Title
IT1396734B1 (en) * 2009-11-25 2012-12-14 Ferrara ESCAPEMENT FOR HIGH PERFORMANCE CLOCKS.
EP2407830B1 (en) * 2010-07-15 2014-11-05 Rolex Sa Timepiece
JP5485859B2 (en) * 2010-11-17 2014-05-07 セイコーインスツル株式会社 Uncle escapement and mechanical watch with the same
EP2487546B1 (en) * 2011-02-11 2021-06-30 Montres Journe S.A. High-performance bi-axial escapement, or HPBE
JP5891076B2 (en) * 2012-03-09 2016-03-22 セイコーインスツル株式会社 Spur tooth, escape wheel provided with the hook tooth, ankle escapement, movement, mechanical timepiece, and torque transmission method
CN106707718B (en) * 2017-03-01 2019-01-29 谭泽华 Clock and watch split axle impacts release catch
JP6901876B2 (en) * 2017-03-13 2021-07-14 セイコーインスツル株式会社 Escapement, watch movements and watches
EP4105731B1 (en) * 2021-06-17 2024-01-03 Montres Breguet S.A. Natural escapement for timepiece movement and timepiece movement comprising such an escapement
EP4198641A1 (en) 2021-12-20 2023-06-21 Montres Breguet S.A. Natural escapement for timepiece movement and timepiece movement comprising such an escapement

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US594446A (en) * 1897-11-30 Balance-escapement
CH4698A (en) 1892-03-04 1892-10-15 Hermann Knecht Watch escapement
US1091261A (en) * 1913-07-22 1914-03-24 William E Walker Chronometer-escapement.
US2531273A (en) * 1944-04-27 1950-11-21 Albert Jean Devaud Escapement device
CH27961A4 (en) 1961-01-10 1963-08-15
EP0018796B1 (en) * 1979-04-30 1984-11-07 George Daniels Watches, clocks and chronometers and escapements therefor
EP1045297B1 (en) * 1999-04-12 2003-07-02 Omega SA Coaxial lever escapement
DE60233783D1 (en) * 2002-05-28 2009-11-05 Manuf Et Fabrique De Montres E Inhibition for watches
ATE363673T1 (en) * 2003-12-04 2007-06-15 Montres Breguet Sa CHRONOMETER ESCAPEMENT FOR WRISTWATCHES
ATE459026T1 (en) * 2003-12-16 2010-03-15 Montres Breguet Sa CHRONOMETER ESCAPEMENT FOR WATCHES
EP1580625A1 (en) * 2004-03-23 2005-09-28 Asulab S.A. Device and method for fixing a pallet on an escapement anchor in a watch movement
DE602005005633T2 (en) * 2005-03-30 2009-04-16 Montres Breguet S.A. Chronometer escapement for watches
DE602005005632T2 (en) * 2005-03-30 2009-04-16 Montres Breguet S.A. Chronometer escapement for watches

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11846913B2 (en) 2018-04-17 2023-12-19 François Besse Escapement mechanism with locking anchor and timepiece provided with such an escapement mechanism

Also Published As

Publication number Publication date
EP1983391A1 (en) 2008-10-22
JP5160288B2 (en) 2013-03-13
JP2008268209A (en) 2008-11-06
CN101290505B (en) 2011-08-03
US7553068B2 (en) 2009-06-30
ATE456079T1 (en) 2010-02-15
HK1125191A1 (en) 2009-07-31
US20080259739A1 (en) 2008-10-23
DE602007004447D1 (en) 2010-03-11
CN101290505A (en) 2008-10-22

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