EP1983388B1 - Direct-pulse escapement for timepiece - Google Patents

Direct-pulse escapement for timepiece Download PDF

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Publication number
EP1983388B1
EP1983388B1 EP07106376A EP07106376A EP1983388B1 EP 1983388 B1 EP1983388 B1 EP 1983388B1 EP 07106376 A EP07106376 A EP 07106376A EP 07106376 A EP07106376 A EP 07106376A EP 1983388 B1 EP1983388 B1 EP 1983388B1
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EP
European Patent Office
Prior art keywords
balance
escapement
wheel set
wheel
cooperating
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Active
Application number
EP07106376A
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German (de)
French (fr)
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EP1983388A1 (en
Inventor
Andrés Cabezas Jurin
Thierry Conus
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ETA Manufacture Horlogere Suisse SA
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ETA Manufacture Horlogere Suisse 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.)
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Application filed by ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to EP07106376A priority Critical patent/EP1983388B1/en
Priority to DE602007004446T priority patent/DE602007004446D1/en
Priority to AT07106376T priority patent/ATE456078T1/en
Priority to JP2008105911A priority patent/JP5350667B2/en
Priority to US12/105,447 priority patent/US7708455B2/en
Priority to CN2008101092912A priority patent/CN101290504B/en
Publication of EP1983388A1 publication Critical patent/EP1983388A1/en
Priority to HK09103291.1A priority patent/HK1125190A1/en
Application granted granted Critical
Publication of EP1983388B1 publication Critical patent/EP1983388B1/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
    • 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
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction

Definitions

  • the present invention relates to an escapement for a timepiece comprising an escape wheel driven by a gear train, a balance wheel with which is associated a spiral, means using the energy developed by the mobile to periodically restart the balance and means to temporarily block said mobile after each restart of said balance.
  • the means of rest of the mobile escape are provided by an anchor with two pallets of rest.
  • the means of stimulating the balance are provided firstly by a first pulse pallet disposed on the anchor and secondly by a second pulse pallet disposed on the balance plate.
  • the balance also receives two pulses per oscillation, one indirect by the first pallet disposed on the anchor and the other direct by the second pallet disposed on the plate.
  • an escapement for a timepiece comprising an escapement wheel driven by a cog, a balance wheel with which is associated a spiral, means using the energy developed by the mobile to periodically restart the pendulum and means for temporarily blocking said mobile after each raising of said balance, a blocker driven periodically by the balance, this blocker being provided with first and second pallets of rest arranged to cooperate with said teeth of said mobile, said escapement further comprising a first integral pulse pallet of the balance and cooperating directly with the teeth of which the mobile is provided.
  • the invention therefore relates to an escapement defined by claim 1 of the patent.
  • the figure 1 is a plan view of the exhaust mechanism according to a preferred embodiment of the present invention.
  • This exhaust comprises an exhaust mobile 1 driven by a train, the latter being not shown in the drawing.
  • This wheel is generally driven by a barrel and rotates, when it is driven in the direction indicated by the arrow 30.
  • the escapement further comprises a balance 2 associated with a spiral not shown here.
  • the balance 2 is partially represented by a serge 11 and four spokes 18, 19, 20, 21.
  • the rocker 2 pivots on an axis or shaft 10 and rotates in the direction of the arrows 31 or 32 according to the considered alternation. Means are implemented that use the energy developed by the mobile 1 to periodically restart the balance 2.
  • first and second pulse pallets 3 and 4 which are integral with the balance 2 and which cooperate directly with the teeth which is provided with the mobile 1.
  • Other means are implemented to temporarily block the mobile 1 after each restart of the balance 2.
  • These means consist of a blocker 5 pivoting on an axis or shaft 14. The blocker is driven periodically by the balance 2 and is equipped with first and second rest pallets 6 and 7 arranged to cooperate with the teeth of the mobile 1.
  • the escapement wheel 1 comprises a plurality of wheels integral with each other and coaxially mounted on each other, ie in this case at least one first wheel 8 of large diameter and a second wheel 9 of smaller diameter.
  • the impulse pallet 3 is arranged to cooperate with the large wheel 8 and the impulse pallet 4 is arranged to cooperate with the small wheel 9.
  • the figure 1 shows again that the first and second pallet rest 6 and 7 are arranged to cooperate with the small diameter wheel 9.
  • the invention is not limited to this way of doing things. Indeed, these pallets of rest could just as well cooperate with the teeth of the ferris wheel 8 or cooperate with an additional wheel that would be entirely devolving.
  • the small diameter wheel 9 of the figure 1 could be unique and stamped in one piece.
  • two identical wheels 22 and 23 mounted on one another and angularly offset. (The drawing shows here two slightly different diameters for a good understanding of the assembly).
  • the large wheel 8 constituting the escapement wheel 1 is entirely confined in a space extending between the axis 10 and the beam 11 of the balance 2.
  • the first pulse pallet 3 is located in a peripheral zone of the pendulum 2 which could be its serge 11, but that the exemplary embodiment located at the end of one of the spokes 18 which is provided with said balance.
  • the balance is used here not only as regulator of the timepiece, but also, through the pallet 3, as part of its own recovery by one of the teeth which is provided with the first and large escape wheel 8.
  • the figure 1 shows that it is fixed to the end of a leg 12 to cooperate with the teeth of the second and small escape wheel 9.
  • the other end 15 of the leg 12 is fixed near or around the axis This end of leg 12 could be compared to plateau that is commonly encountered in watchmaking and this especially as it is equipped with an ankle 17 as will be seen below.
  • the figure 1 shows finally how is realized the blocker 5 installed to temporarily block the mobile escape 1 after each restart of the pendulum.
  • the blocker 5 is a rocker 13 articulated on an axis 14. It is equipped with first and second pallet rest 6 and 7 arranged to cooperate with the second and small escape wheel 9.
  • the blocker 5 has a fork 16 arranged to cooperate with an ankle 17 which, as seen in the above paragraph, is integral with the balance 2 or, more exactly, the end 15 of the leg 12 itself attached to the balance, this pin 17 being located at near the axis 10 of said balance.
  • the figure 1 shows again that the blocker 5 is provided with a shank 24 to limit its excursion between two limiting pins 25 and 26.
  • the fork 16 is normally equipped with a dart which prevents accidental tilting of the blocker. This sting is not represented on the figure 1 .
  • the figure 6 shows the rest of the tooth 44 of the small wheel 9 on the pallet of rest 7.
  • the rocker 2 continues to rotate in the direction of the arrow 31 and the pin 17 is about to exit the fork 16.
  • the figure 7 shows the escapement of the invention in a state of total rest.
  • the pallet 7 rested deeper on the tooth 44 of the small wheel 9 and the tail 24 of the blocker 5 comes to rest on the pin 26.
  • the pendulum travels its supplementary arc in the direction of the arrow 31 then reverses its direction and turns back path in the direction of the arrow 32.
  • This phase marks the end of the first alternation composing the oscillation under examination.
  • the figure 8 shows a blocker 5 in the same situation as that analyzed previously. Here, however, the rocker 1 returning in the direction of the arrow 32, the pin 17 comes into contact with the fork 16 of the blocker 5. It is a start of release phase of the mobile escape 1.
  • the figure 12 shows the rest of the tooth 42 of the small wheel 9 on the pallet rest 6.
  • the rocker 2 continues its course in the direction of the arrow 32 and the pin 17 is about to leave the fork 16.
  • the figure 13 shows the escapement of the invention in a state of total rest.
  • the pallet 6 rested deeper on the tooth 42 of the small wheel 9 and the tail 24 of the blocker 5 is supported on the limiting pin 25.
  • the balance 2 travels its supplementary arc in the direction of the arrow 32 and reverses its direction and turns back path in the direction of the arrow 31.
  • This phase marks the end of the second alternation component oscillation under examination. From this moment a new cycle resumes and we find sacred in the situation of the beginning, that is to say, that represented in figure 2 .

Abstract

The escapement has an escape wheel set (1) driven by a gear train, and a balance (2) associated with a balance spring. A balance launching unit uses the energy developed by the wheel set for launching the balance periodically. A wheel set locking unit locks the wheel set temporarily after each launch of the balance. Impulse pallet stones (3, 4) are secured to the balance and cooperate directly with teeth of the wheel set. A brake lever (5) is driven periodically by the balance, where the brake lever is provided with locking pallet stones (6, 7) cooperating with the teeth of the wheel set.

Description

La présente invention est relative à un échappement pour pièce d'horlogerie comprenant un mobile d'échappement entraîné par un rouage, un balancier auquel est associé un spiral, des moyens utilisant l'énergie développée par le mobile pour relancer périodiquement le balancier et des moyens pour bloquer temporairement ledit mobile après chaque relance dudit balancier.The present invention relates to an escapement for a timepiece comprising an escape wheel driven by a gear train, a balance wheel with which is associated a spiral, means using the energy developed by the mobile to periodically restart the balance and means to temporarily block said mobile after each restart of said balance.

La plupart des échappements connus obéissent à la description très générale qui vient d'être donnée.Most of the known escapements obey the very general description just given.

C'est le cas de l'échappement à ancre suisse où les moyens de relance du balancier et de repos du mobile sont réunis dans une ancre comportant deux palettes, chacune de celles-ci remplissant à la fois la fonction de relance du balancier et celle de repos du mobile d'échappement. Dans ce système le balancier reçoit deux impulsions par oscillation, non pas directement, mais par l'intermédiaire de l'ancre interposée entre le mobile d'échappement et le balancier.This is the case of the Swiss lever escapement where the means of raising the balance wheel and rest of the mobile are combined in an anchor comprising two pallets, each of which fulfills both the function of raising the balance wheel and that of rest of the mobile escape. In this system the balance receives two pulses per oscillation, not directly, but through the anchor interposed between the escapement mobile and the balance.

C'est le cas également de l'échappement coaxial et de l'échappement à roue simple décrits dans l'ouvrage intitulé : « La Montre : principes et méthodes de fabrication » de George Daniels, Editions Scriptar S.A. La Conversion, Lausanne 1993, pages 240 à 248 . Dans ces échappements les moyens de repos du mobile d'échappement sont assurés par une ancre comportant deux palettes de repos. Les moyens de relance du balancier sont assurés d'une part par une première palette d'impulsion disposée sur l'ancre et d'autre part par une seconde palette d'impulsion disposée sur le plateau du balancier. Dans ces systèmes, le balancier reçoit également deux impulsions par oscillation, l'une indirecte par la première palette disposée sur l'ancre et l'autre directe par la seconde palette disposée sur le plateau.This is also the case for the coaxial escapement and the single-wheel escapement described in the book entitled: "The Watch: principles and methods of manufacture" by George Daniels, Editions Scriptar SA La Conversion, Lausanne 1993, pages 240 to 248 . In these exhausts the means of rest of the mobile escape are provided by an anchor with two pallets of rest. The means of stimulating the balance are provided firstly by a first pulse pallet disposed on the anchor and secondly by a second pulse pallet disposed on the balance plate. In these systems, the balance also receives two pulses per oscillation, one indirect by the first pallet disposed on the anchor and the other direct by the second pallet disposed on the plate.

On connait également du document EP-A-1 045 297 un échappement pour pièce d'horlogerie comprenant un mobile d'échappement entraîné par un rouage, un balancier auquel est associé un spiral, des moyens utilisant l'énergie développée par le mobile pour relancer périodiquement le balancier et des moyens pour bloquer temporairement ledit mobile après chaque relance dudit balancier, un bloqueur entraîné périodiquement par le balancier, ce bloqueur étant pourvu de première et seconde palettes de repos arrangées pour coopérer avec lesdites dents dudit mobile, ledit échappement comprenant en outre une première palette d'impulsion solidaire du balancier et coopérant directement avec les dents dont est pourvu le mobile.We also know of the document EP-A-1,045,297 an escapement for a timepiece comprising an escapement wheel driven by a cog, a balance wheel with which is associated a spiral, means using the energy developed by the mobile to periodically restart the pendulum and means for temporarily blocking said mobile after each raising of said balance, a blocker driven periodically by the balance, this blocker being provided with first and second pallets of rest arranged to cooperate with said teeth of said mobile, said escapement further comprising a first integral pulse pallet of the balance and cooperating directly with the teeth of which the mobile is provided.

Ainsi, de la connaissance des auteurs de la présente invention, il n'existe pas d'échappement où le balancier reçoit deux impulsions par oscillation, soit une impulsion par alternance, ces impulsions étant conférées directement au balancier par le mobile d'échappement sans éléments intermédiaires. On comprendra qu'une action directe du mobile d'échappement sur le balancier ne peut qu'augmenter le rendement du système puisqu'on évite des pièces intercalées.Thus, from the knowledge of the authors of the present invention, there is no escapement where the balance receives two pulses per oscillation, ie an alternating pulse, these pulses being imparted directly to the balance by the escapement mobile without elements. intermediate. It will be understood that a direct action of the mobile escapement on the balance can only increase the efficiency of the system since it avoids intercalated parts.

L'invention a donc pour objet un échappement défini par la revendication 1 du brevet.The invention therefore relates to an escapement defined by claim 1 of the patent.

L'invention va être expliquée maintenant en détail ci-dessous par un mode d'exécution donné en exemple non limitatif, cette exécution étant illustrée par les dessins annexés dans lesquels :

  • la figure 1 est une vue en plan de l'échappement selon l'invention, et
  • les figures 2 à 13 sont des vues en plan expliquant les phases de fonctionnement de l'échappement selon l'invention, ces phases couvrant une oscillation complète du balancier.
The invention will now be explained in detail below by an embodiment given by way of non-limiting example, this embodiment being illustrated by the appended drawings in which:
  • the figure 1 is a plan view of the exhaust according to the invention, and
  • the Figures 2 to 13 are plan views explaining the operating phases of the escapement according to the invention, these phases covering a complete oscillation of the balance.

La figure 1 est une vue en plan du mécanisme d'échappement selon un mode préféré d'exécution de la présente invention. Cet échappement comprend un mobile d'échappement 1 entraîné par un rouage, ce dernier n'étant pas représenté au dessin. Ce rouage est généralement entraîné par un barillet et tourne, quand il est entraîné dans le sens indiqué par la flèche 30. L'échappement comporte encore un balancier 2 associé à un spiral non représenté ici. Le balancier 2 est représenté partiellement par une serge 11 et quatre rayons 18, 19, 20, 21. Le balancier 2 pivote sur un axe ou arbre 10 et tourne dans le sens des flèches 31 ou 32 selon l'alternance considérée. Des moyens sont mis en oeuvre qui utilisent l'énergie développée par le mobile 1 pour relancer périodiquement le balancier 2. Ces moyens comprennent des première et seconde palettes d'impulsion 3 et 4 qui sont solidaires du balancier 2 et qui coopèrent directement avec les dents dont est pourvu le mobile 1. D'autres moyens sont mis en oeuvre pour bloquer temporairement le mobile 1 après chaque relance du balancier 2. Ces moyens consistent en un bloqueur 5 pivotant sur un axe ou arbre 14. Le bloqueur est entraîné périodiquement par le balancier 2 et est équipé de première et seconde palettes de repos 6 et 7 arrangées pour coopérer avec les dents du mobile 1.The figure 1 is a plan view of the exhaust mechanism according to a preferred embodiment of the present invention. This exhaust comprises an exhaust mobile 1 driven by a train, the latter being not shown in the drawing. This wheel is generally driven by a barrel and rotates, when it is driven in the direction indicated by the arrow 30. The escapement further comprises a balance 2 associated with a spiral not shown here. The balance 2 is partially represented by a serge 11 and four spokes 18, 19, 20, 21. The rocker 2 pivots on an axis or shaft 10 and rotates in the direction of the arrows 31 or 32 according to the considered alternation. Means are implemented that use the energy developed by the mobile 1 to periodically restart the balance 2. These means comprise first and second pulse pallets 3 and 4 which are integral with the balance 2 and which cooperate directly with the teeth which is provided with the mobile 1. Other means are implemented to temporarily block the mobile 1 after each restart of the balance 2. These means consist of a blocker 5 pivoting on an axis or shaft 14. The blocker is driven periodically by the balance 2 and is equipped with first and second rest pallets 6 and 7 arranged to cooperate with the teeth of the mobile 1.

Plus précisément, et comme le montre bien la figure 1 qui se trouve être un mode d'exécution choisi parmi d'autres relatif à l'invention, le mobile d'échappement 1 comprend une pluralité de roues solidaires les unes des autres et montées coaxialement les unes sur les autres, soit en l'occurrence au moins une première roue 8 de grand diamètre et une seconde roue 9 de plus petit diamètre. La palette d'impulsion 3 est arrangée pour coopérer avec la grande roue 8 et la palette d'impulsion 4 est arrangée pour coopérer avec la petite roue 9.More precisely, and as the figure 1 which happens to be one of a number of embodiments relating to the invention, the escapement wheel 1 comprises a plurality of wheels integral with each other and coaxially mounted on each other, ie in this case at least one first wheel 8 of large diameter and a second wheel 9 of smaller diameter. The impulse pallet 3 is arranged to cooperate with the large wheel 8 and the impulse pallet 4 is arranged to cooperate with the small wheel 9.

On peut montrer que l'utilisation de deux roues 8 et 9 de diamètres différents permet d'augmenter la sécurité de fonctionnement du système. Dans ces conditions en effet, l'angle durant lequel une dent de la roue 8 accompagne la palette d'impulsion 3 (voir figures 4 et 5) et l'angle durant lequel une dent de la roue 9 accompagne la palette d'impulsion 4 (voir figures 10 et 11), sont nettement plus importants que si le mobile d'échappement 1 était équipée d'une roue unique. Ainsi augmenter l'angle d'accompagnement ou de contact entre dent et palette ne peut qu'assurer une meilleure sécurité de fonctionnement de tout l'échappement, tant il est vrai qu'un angle trop faible ne laisse aucune réserve de sécurité, compte tenu des tolérances de fabrication inhérentes aux pièces mécaniques qui sont ici en jeu.It can be shown that the use of two wheels 8 and 9 of different diameters makes it possible to increase the operational safety of the system. In these conditions indeed, the angle during which a tooth of the wheel 8 accompanies the pulse pallet 3 (see Figures 4 and 5 ) and the angle during which a tooth of the wheel 9 accompanies the pulse pallet 4 (see Figures 10 and 11 ), are significantly larger than if the mobile escape 1 was equipped with a single wheel. Thus increasing the angle of contact or contact between tooth and pallet can only ensure better operational safety of the entire exhaust, as it is True, a too small angle leaves no safety reserve, given the manufacturing tolerances inherent in the mechanical parts involved here.

La figure 1 montre encore que les première et seconde palettes de repos 6 et 7 sont arrangées pour coopérer avec la roue de petit diamètre 9. Cependant l'invention n'est pas limitée à cette façon de faire. En effet, ces palettes de repos pourraient tout aussi bien coopérer avec les dents de la grande roue 8 ou encore coopérer avec une roue supplémentaire qui leur serait entièrement dévolue.The figure 1 shows again that the first and second pallet rest 6 and 7 are arranged to cooperate with the small diameter wheel 9. However, the invention is not limited to this way of doing things. Indeed, these pallets of rest could just as well cooperate with the teeth of the ferris wheel 8 or cooperate with an additional wheel that would be entirely devolving.

La roue de petit diamètre 9 de la figure 1 pourrait être unique et étampée d'une seule pièce. Par commodité de fabrication on a choisi d'utiliser deux roues identiques 22 et 23 montées l'une sur l'autre et décalées angulairement. (Le dessin montre ici deux diamètres légèrement différents pour une bonne compréhension de l'assemblage).The small diameter wheel 9 of the figure 1 could be unique and stamped in one piece. For convenience of manufacture we have chosen to use two identical wheels 22 and 23 mounted on one another and angularly offset. (The drawing shows here two slightly different diameters for a good understanding of the assembly).

On observera encore que la grande roue 8 constituant le mobile d'échappement 1 est entièrement confinée dans un espace s'étendant entre l'axe 10 et la serge 11 du balancier 2. Plus particulièrement, la première palette d'impulsion 3 est située dans une zone périphérique du balancier 2 qui pourrait être sa serge 11, mais que le mode d'exécution pris en exemple situe à l'extrémité d'un des rayons 18 dont est pourvu ledit balancier. Cette disposition est entièrement nouvelle puisque le balancier est utilisé ici non seulement comme organe régulateur du garde-temps, mais encore, par l'intermédiaire de la palette 3, comme élément de sa propre relance par une des dents dont est pourvue la première et grande roue d'échappement 8. Quant à la seconde palette d'impulsion 4, la figure 1 montre qu'elle est fixée à l'extrémité d'une jambe 12 pour coopérer avec les dents de la seconde et petite roue d'échappement 9. L'autre extrémité 15 de cette jambe 12 est fixée à proximité ou autour de l'axe 10 du balancier 2. Cette extrémité 15 de la jambe 12 pourrait être comparée au plateau que l'on rencontre couramment en horlogerie et cela d'autant plus qu'elle est équipée d'une cheville 17 comme on le verra ci-après.It will be observed again that the large wheel 8 constituting the escapement wheel 1 is entirely confined in a space extending between the axis 10 and the beam 11 of the balance 2. More particularly, the first pulse pallet 3 is located in a peripheral zone of the pendulum 2 which could be its serge 11, but that the exemplary embodiment located at the end of one of the spokes 18 which is provided with said balance. This arrangement is entirely new since the balance is used here not only as regulator of the timepiece, but also, through the pallet 3, as part of its own recovery by one of the teeth which is provided with the first and large escape wheel 8. As for the second pulse pallet 4, the figure 1 shows that it is fixed to the end of a leg 12 to cooperate with the teeth of the second and small escape wheel 9. The other end 15 of the leg 12 is fixed near or around the axis This end of leg 12 could be compared to plateau that is commonly encountered in watchmaking and this especially as it is equipped with an ankle 17 as will be seen below.

La figure 1 montre enfin comment est réalisé le bloqueur 5 installé pour bloquer temporairement le mobile d'échappement 1 après chaque relance du balancier. Le bloqueur 5 est une bascule 13 articulé sur un axe 14. Il est équipé de première et seconde palettes de repos 6 et 7 arrangées pour coopérer avec la seconde et petite roue d'échappement 9. Le bloqueur 5 comporte une fourchette 16 arrangée pour coopérer avec une cheville 17 qui, comme on l'a vu au paragraphe ci-dessus, est solidaire du balancier 2 ou, plus exactement, de l'extrémité 15 de la jambe 12 elle-même fixée au balancier, cette cheville 17 étant située à proximité de l'axe 10 dudit balancier. La figure 1 montre encore que le bloqueur 5 est muni d'une queue 24 pour borner son excursion entre deux goupilles de limitation 25 et 26. La fourchette 16 est équipée normalement d'un dard qui prévient le basculement accidentel du bloqueur. Ce dard n'est pas représenté sur la figure 1.The figure 1 shows finally how is realized the blocker 5 installed to temporarily block the mobile escape 1 after each restart of the pendulum. The blocker 5 is a rocker 13 articulated on an axis 14. It is equipped with first and second pallet rest 6 and 7 arranged to cooperate with the second and small escape wheel 9. The blocker 5 has a fork 16 arranged to cooperate with an ankle 17 which, as seen in the above paragraph, is integral with the balance 2 or, more exactly, the end 15 of the leg 12 itself attached to the balance, this pin 17 being located at near the axis 10 of said balance. The figure 1 shows again that the blocker 5 is provided with a shank 24 to limit its excursion between two limiting pins 25 and 26. The fork 16 is normally equipped with a dart which prevents accidental tilting of the blocker. This sting is not represented on the figure 1 .

On va expliquer maintenant le fonctionnement de l'échappement selon l'invention. Une oscillation complète du balancier 2 est illustrée aux figures 2 à 13. 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. A complete oscillation of the balance 2 is illustrated at Figures 2 to 13 . The different phases of operation will be reviewed below.

En figure 2, le balancier tourne dans le sens de la flèche 31. Le mobile d'échappement 1 est au repos, retenu qu'il est par la palette de repos 6 qui est en appui sur la dent 40 de la seconde et petite roue 9. La queue 24 du bloqueur 5 est en appui sur la goupille de limitation 25. La cheville 17 solidaire du balancier 2 a pénétré dans l'espace libre que présente la fourchette 16 et est entrée en contact avec une dent de cette fourchette. C'est la phase de début de dégagement de la palette de repos 6.In figure 2 , the rocker rotates in the direction of the arrow 31. The escapement mobile 1 is at rest, retained that it is by the pallet rest 6 which bears on the tooth 40 of the second and small wheel 9. The tail 24 of the blocker 5 bears on the limiting pin 25. The pin 17 integral with the rocker 2 has penetrated into the free space that the fork 16 has and has come into contact with a tooth of this fork. This is the start of the release phase of the rest pallet 6.

Comme le montre la figure 3, le balancier 2 a continué de tourner dans le sens de la flèche 31 faisant pivoter le bloqueur 5 dans le sens de la flèche 33. Ce pivotement amène la palette de repos 6 à l'extrémité de la dent 40 de la roue 9 et à sortir de l'emprise de cette dent. C'est la phase de libération du mobile d'échappement 1. On remarquera par ailleurs qu'en tournant, le balancier 2 a amené la première palette d'impulsion 3 dont il est pourvu à couper la trajectoire de la dent 50 de la première grande roue 8 composant le mobile d'échappement 1.As shown in figure 3 , the rocker 2 continued to rotate in the direction of the arrow 31 pivoting the blocker 5 in the direction of the arrow 33. This pivoting brings the pallet rest 6 to the end of the tooth 40 of the wheel 9 and out of the right-of-way of this tooth. This is the release phase of the escapement mobile 1. It will also be noted that by turning, the balance 2 has brought the first pulse pallet 3 which it is provided to cut the trajectory of the tooth 50 of the first Ferris wheel 8 making up the exhaust mobile 1.

En figure 4 le mobile d'échappement 1 est libéré et tourne dans le sens de la flèche 30 actionné qu'il est par son rouage mû à son tour par un barillet. La dent 50 de la grande roue 8 a rattrapé la palette d'impulsion 3 solidaire du balancier 2, puis entre en contact avec elle. C'est une phase de début d'impulsion destinée à relancer le balancier.In figure 4 the escapement mobile 1 is released and rotates in the direction of the arrow 30 actuated that it is by its wheel driven in turn by a barrel. The tooth 50 of the ferris wheel 8 has caught the pulse pallet 3 secured to the balance 2 and then comes into contact with it. This is a pulse start phase intended to restart the pendulum.

La phase de fin d'impulsion est montrée en figure 5. Le mobile d'échappement 1, tournant dans le sens de la flèche 30, a amené la dent 50 de sa grande roue 8 dans la position montrée par la figure, c'est-à-dire sur le point de lâcher prise. On observera qu'en tournant, le balancier 2 a continué à entraîner par la cheville 17 dont il est muni, le bloqueur 5 dans le sens de la flèche 33, ce qui a pour conséquence d'amener la seconde palette d'impulsion 7 à couper la trajectoire de la dent 44 de la petite roue 9 composant le mobile d'échappement 1 et à préparer ainsi le prochain repos.The end of pulse phase is shown in figure 5 . The escapement wheel 1, rotating in the direction of the arrow 30, brought the tooth 50 of its large wheel 8 in the position shown in the figure, that is to say on the point of letting go. It will be observed that by turning, the rocker 2 continued to drive through the pin 17 which it is provided, the blocker 5 in the direction of the arrow 33, which has the effect of causing the second pulse pallet 7 to cut the trajectory of the tooth 44 of the small wheel 9 forming the mobile escapement 1 and thus prepare the next rest.

La figure 6 montre la prise de repos de la dent 44 de la petite roue 9 sur la palette de repos 7. Le balancier 2 poursuit sa rotation dans le sens de la flèche 31 et la cheville 17 est sur le point de sortir de la fourchette 16.The figure 6 shows the rest of the tooth 44 of the small wheel 9 on the pallet of rest 7. The rocker 2 continues to rotate in the direction of the arrow 31 and the pin 17 is about to exit the fork 16.

La figure 7 montre l'échappement de l'invention en état de repos total. Par effet de tirage provoqué par le couple exercé sur le mobile d'échappement 1, la palette de repos 7 s'est enfoncée plus profondément sur la dent 44 de la petite roue 9 et la queue 24 du bloqueur 5 vient prendre appui sur la goupille de limitation 26. Dès cet instant le balancier parcourt son arc supplémentaire selon le sens de la flèche 31 puis inverse sons sens et rebrousse chemin selon le sens de la flèche 32. Cette phase marque la fin de la première alternance composant l'oscillation sous examen.The figure 7 shows the escapement of the invention in a state of total rest. By pulling effect caused by the torque exerted on the mobile escapement 1, the pallet 7 rested deeper on the tooth 44 of the small wheel 9 and the tail 24 of the blocker 5 comes to rest on the pin 26. At this moment the pendulum travels its supplementary arc in the direction of the arrow 31 then reverses its direction and turns back path in the direction of the arrow 32. This phase marks the end of the first alternation composing the oscillation under examination.

La figure 8 montre un bloqueur 5 se trouvant dans la même situation que celle analysée précédemment. Ici cependant, le balancier 1 revenant dans le sens de la flèche 32, la cheville 17 entre en contact avec la fourchette 16 du bloqueur 5. C'est une phase de début de dégagement du mobile d'échappement 1.The figure 8 shows a blocker 5 in the same situation as that analyzed previously. Here, however, the rocker 1 returning in the direction of the arrow 32, the pin 17 comes into contact with the fork 16 of the blocker 5. It is a start of release phase of the mobile escape 1.

Comme cela est apparent en figure 9, le balancier 2 a poursuivi sa course dans le sens de la flèche 32 et, via la cheville 17 et la fourchette 16, a entraîné le bloqueur 5 dans le sens de la flèche 34. La queue 24 du bloqueur 5 a décollé de la goupille de limitation 26 et la palette de repos 7 s'est extraite de l'emprise de la dent 44 de la petite roue 9. C'est une phase de libération du mobile d'échappement 1. Ici encore, on remarquera qu'en tournant le balancier 2 a amené la seconde palette d'impulsion 4 dont il est équipé à couper la trajectoire de la dent 45 de la petite roue 9 composant le mobile d'échappement 1 ce qui prépare ainsi la prochaine impulsion.As is apparent in figure 9 , the rocker 2 continued its course in the direction of the arrow 32 and, via the pin 17 and the fork 16, has caused the blocker 5 in the direction of the arrow 34. The tail 24 of the blocker 5 has taken off the pin 26 and the pallet rest 7 has extracted from the grip of the tooth 44 of the small wheel 9. This is a phase of release of the mobile escape 1. Again, we note that turning the rocker 2 has brought the second pulse pallet 4 which it is equipped to cut the path of the tooth 45 of the small wheel 9 component of the mobile escape 1 which thus prepares the next pulse.

En figure 10 le mobile d'échappement 1 est libéré et tourne dans le sens de la flèche 30 actionné par son rouage comme on l'a dit plus haut. La dent 45 de la petite roue 9 a rattrapé la palette d'impulsion 4 puis entre en contact avec elle. C'est à nouveau une phase de début d'impulsion destiné à relancer le balancier.In figure 10 the escapement mobile 1 is released and rotates in the direction of the arrow 30 actuated by its gear as mentioned above. The tooth 45 of the small wheel 9 has caught the pulse pallet 4 and then comes into contact with it. This is again a pulse start phase intended to restart the pendulum.

La phase de fin d'impulsion est présentée en figure 11. Le mobile d'échappement 1, tournant dans le sens de la flèche 30, a amené la dent 45 de sa petite roue 9 dans la position illustrée par la figure, c'est-à-dire sur le point de lâcher prise. On observera à nouveau qu'en tournant dans le sens de la flèche 32, le balancier 2 a continué à entraîner par la cheville 17 le bloqueur 5 dans le sens de la flèche 34, ce qui a pour résultat d'amener la première palette d'impulsion 6 à couper la trajectoire de la dent 42 de la petite roue 9 et à préparer ainsi le prochain repos.The end of impulse phase is presented in figure 11 . The escapement mobile 1, rotating in the direction of the arrow 30, brought the tooth 45 of its small wheel 9 in the position shown in the figure, that is to say on the point of letting go. It will be observed again that by turning in the direction of the arrow 32, the rocker 2 continued to cause the pin 17 to block the blocker 5 in the direction of the arrow 34, which has the result of bringing the first pallet d pulse 6 to cut the trajectory of the tooth 42 of the small wheel 9 and thus prepare the next rest.

La figure 12 montre la prise de repos de la dent 42 de la petite roue 9 sur la palette de repos 6. Le balancier 2 poursuit sa course dans le sens de la flèche 32 et la cheville 17 est sur le point de quitter la fourchette 16.The figure 12 shows the rest of the tooth 42 of the small wheel 9 on the pallet rest 6. The rocker 2 continues its course in the direction of the arrow 32 and the pin 17 is about to leave the fork 16.

La figure 13 montre l'échappement de l'invention en état de repos total. Par effet de tirage, la palette de repos 6 s'est enfoncée plus profondément sur la dent 42 de la petite roue 9 et la queue 24 du bloqueur 5 vient s'appuyer sur la goupille de limitation 25. Dès cet instant, le balancier 2 parcourt son arc supplémentaire selon le sens de la flèche 32 puis inverse son sens et rebrousse chemin selon le sens de la flèche 31. Cette phase marque la fin de la seconde alternance composant l'oscillation sous examen. A partir de ce moment un nouveau cycle reprend et l'on se retrouve dans la situation du début, c'est-à-dire celle représentée en figure 2.The figure 13 shows the escapement of the invention in a state of total rest. By pulling effect, the pallet 6 rested deeper on the tooth 42 of the small wheel 9 and the tail 24 of the blocker 5 is supported on the limiting pin 25. From this moment, the balance 2 travels its supplementary arc in the direction of the arrow 32 and reverses its direction and turns back path in the direction of the arrow 31. This phase marks the end of the second alternation component oscillation under examination. From this moment a new cycle resumes and we find ourselves in the situation of the beginning, that is to say, that represented in figure 2 .

Claims (4)

  1. Escapement for a timepiece including an escape wheel set (1) driven by a gear train, a balance (2) associated with a balance spring, means using the energy developed by the wheel set for periodically launching the balance and means for temporarily locking said wheel set after each launch of said balance, a brake lever (5) driven periodically by the balance, said brake lever (5) being provided with first (6) and second (7) locking pallet stones arranged for cooperating with said teeth of said wheel set, said escapement further including a first (3) impulse pallet stone secured to the balance (2) and cooperating directly with the teeth of the wheel set (1), said escapement being characterized in that it further includes a second impulse pallet stone (4) secured to the balance (2) and cooperating directly with the teeth of the wheel set (1).
  2. Escapement according to claim 1, characterized in that the wheel set (1) includes a plurality of coaxial wheels secured to each other, including at least first (8) and second (9) wheels, the first having a larger diameter than the second, the first (8) and second (9) wheels respectively cooperating with the first (3) and second (4) impulse pallet stones, the first (6) and second (7) locking pallet stones being arranged for cooperating with any of the wheels of the wheel set (1).
  3. Escapement according to claim 2, characterized in that the first escape wheel (8) is entirely confined within a space extending between the arbour (10) and the felloe (11) of the balance (2), in that the first impulse pallet stone (3) is located in a peripheral zone of the balance for cooperating with the first escape wheel (8) and in that the second impulse pallet stone (4) is secured to the end of a leg (12) whose other end (15) is secured around the arbour (10) of the balance (12) for cooperating with the second escape wheel (9).
  4. Escapement according to claim 2, characterized in that the brake lever (5) is a lever (13) articulated on an arbour (14), said brake lever including a fork (16) arranged for cooperating with an impulse pin (17) secured to the balance (2) and located in proximity to the axis (10) of the latter, the first (6) and second (7) locking pallet stones being arranged for cooperating with the second escape wheel (9).
EP07106376A 2007-04-18 2007-04-18 Direct-pulse escapement for timepiece Active EP1983388B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07106376A EP1983388B1 (en) 2007-04-18 2007-04-18 Direct-pulse escapement for timepiece
DE602007004446T DE602007004446D1 (en) 2007-04-18 2007-04-18 Direct impulse inhibition for watches
AT07106376T ATE456078T1 (en) 2007-04-18 2007-04-18 DIRECT PULSE INHIBITION FOR WATCHES
JP2008105911A JP5350667B2 (en) 2007-04-18 2008-04-15 Direct impact escapement for watches
US12/105,447 US7708455B2 (en) 2007-04-18 2008-04-18 Direct impulse escapement for timepiece
CN2008101092912A CN101290504B (en) 2007-04-18 2008-04-18 Direct-pulse escapement for timepiece
HK09103291.1A HK1125190A1 (en) 2007-04-18 2009-04-07 Direct impulse escapement for timepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07106376A EP1983388B1 (en) 2007-04-18 2007-04-18 Direct-pulse escapement for timepiece

Publications (2)

Publication Number Publication Date
EP1983388A1 EP1983388A1 (en) 2008-10-22
EP1983388B1 true EP1983388B1 (en) 2010-01-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07106376A Active EP1983388B1 (en) 2007-04-18 2007-04-18 Direct-pulse escapement for timepiece

Country Status (7)

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US (1) US7708455B2 (en)
EP (1) EP1983388B1 (en)
JP (1) JP5350667B2 (en)
CN (1) CN101290504B (en)
AT (1) ATE456078T1 (en)
DE (1) DE602007004446D1 (en)
HK (1) HK1125190A1 (en)

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DE102010014234B4 (en) * 2010-04-08 2013-02-21 NOMOS Glashütte/SA Roland Schwertner KG Watch with modified escapement
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CN104204966B (en) * 2012-03-29 2017-02-22 尼瓦洛克斯-法尔股份有限公司 Flexible escapement mechanism having a mobile frame
EP2871535B1 (en) * 2013-11-06 2017-06-28 ETA SA Manufacture Horlogère Suisse Timepiece pallet with optimised horns
WO2016186340A1 (en) * 2015-05-19 2016-11-24 여태순 Bike having energy recovery device
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JP6869759B2 (en) * 2017-03-13 2021-05-12 セイコーインスツル株式会社 Escapement, watch movements and watches
JP6869758B2 (en) * 2017-03-13 2021-05-12 セイコーインスツル株式会社 Escapement, watch movements and watches
CN107132749B (en) * 2017-05-27 2019-10-01 江苏金钿实业有限公司 A kind of mechanical watch escapement structure
CN107145054B (en) * 2017-05-27 2019-11-08 江苏金钿实业有限公司 A kind of more escapement control methods controlling each pointer accurate movement of mechanical watch
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JP6558761B1 (en) * 2018-06-19 2019-08-14 セイコーインスツル株式会社 Escapement machine, watch movement and watch
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Also Published As

Publication number Publication date
DE602007004446D1 (en) 2010-03-11
HK1125190A1 (en) 2009-07-31
EP1983388A1 (en) 2008-10-22
ATE456078T1 (en) 2010-02-15
US7708455B2 (en) 2010-05-04
JP2008268206A (en) 2008-11-06
US20080259738A1 (en) 2008-10-23
JP5350667B2 (en) 2013-11-27
CN101290504B (en) 2013-04-03
CN101290504A (en) 2008-10-22

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