EP1967919B1 - Exhaust with tangential impulses - Google Patents

Exhaust with tangential impulses Download PDF

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Publication number
EP1967919B1
EP1967919B1 EP07103860A EP07103860A EP1967919B1 EP 1967919 B1 EP1967919 B1 EP 1967919B1 EP 07103860 A EP07103860 A EP 07103860A EP 07103860 A EP07103860 A EP 07103860A EP 1967919 B1 EP1967919 B1 EP 1967919B1
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EP
European Patent Office
Prior art keywords
pallet
escapement
impulse
wheel
ring
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EP07103860A
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German (de)
French (fr)
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EP1967919A1 (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
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Priority to EP07103860A priority Critical patent/EP1967919B1/en
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to AT07103860T priority patent/ATE433136T1/en
Priority to ES07103860T priority patent/ES2325099T3/en
Priority to DE602007001230T priority patent/DE602007001230D1/en
Priority to JP2008054385A priority patent/JP5153387B2/en
Priority to US12/043,251 priority patent/US7540654B2/en
Priority to CN2008100834883A priority patent/CN101261493B/en
Publication of EP1967919A1 publication Critical patent/EP1967919A1/en
Priority to HK09102047.0A priority patent/HK1124403A1/en
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Publication of EP1967919B1 publication Critical patent/EP1967919B1/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

Definitions

  • the present invention relates to a tangential pulse escapement comprising a rocker articulated on a pivot, this rocker having as first arm a rod terminated by a fork intended to cooperate with a plateau pin and as a second arm, opposite the first, a ring substantially surrounding an escapement mobile, this ring being equipped with pallets rest and pulse for cooperating with the teeth which is provided with said mobile to alternately block the latter and then restart said plate.
  • the exhaust in question comprises a rocker B articulated on a pivot.
  • the upper arm of this rocker consists of a rod terminated by a fork intended to cooperate with a peg L of a plate A.
  • the lower arm comprises a ring surrounding an escape wheel.
  • the ring carries four pallets, two pallets R and R 'pulse for the recovery of the plate A and two pallets of rest D and D' for blocking the escape wheel, the latter having teeth E, F , G, H cooperating with the pallets of the ring.
  • the figure 1 presents an operating phase of the exhaust according to the prior art.
  • tooth F of the wheel was at rest on the pallet D.
  • the turntable A in the direction of the arrow C has released the escapement wheel which then rotates in the direction of the arrow P.
  • the tooth E of the wheel comes into contact with the pallet R of the ring which rotates the rocker B in the direction of the arrow Q and gives a pulse to the plate by the dowel L and that in the direction of the arrow C.
  • the wheel and more precisely its tooth H is blocked by pallet D '. From this moment on, the tray goes through its extra bow and reverses its meaning.
  • the ankle L then drives the fork in an opposite direction and the rocker rotates in a direction opposite to that shown by the arrow Q.
  • the locking or resting of the tooth H on the pallet D ' is broken, which allows the tooth G to the wheel to give a new impetus to the ring by its pallet R 'and revive the plate A.
  • the figure 1 shows that the Melly Fringham system has a footprint that is difficult to match when used in a watch of normal size.
  • the system has indeed a length that will be difficult to incorporate into a timepiece worn on the wrist.
  • a first angle ⁇ showing the angle of movement of the pallet R during the duration of the pulse and a second angle ⁇ representing the angle of displacement of the tip of the tooth E during the same pulse duration.
  • the impulse received from the tooth by the pallet is effective only on a 2 degree excursion of the rocker and it is questionable whether such a short angle makes it possible to transmit to the plate all the energy deployed by the pallet. the escape wheel.
  • this angle so low leaves no reserve of safety, given the manufacturing tolerances inherent in the mechanical parts that are involved here.
  • the present invention in addition to that which is described in the first paragraph of this description, is remarkable in that the escape wheel comprises a plurality of integral and coaxial wheels, at least first and second wheels, the first wheel having a larger diameter than the second, these first and second wheels each cooperating with a pulse pallet which is provided with the ring, the pallets of rest being arranged to cooperate with any of the wheels of which the escape wheel is provided
  • the Figures 2 to 15 show plan views of the tangential pulse escapement.
  • This escapement comprises a rocker 1 articulated on a pivot 2.
  • the rocker 1 comprises as the first arm a rod 3 terminated by a fork 4.
  • the fork 4 cooperates with an ankle 5 secured to a plate 6.
  • the plate is attached to a spiral balance that is not shown in the drawings.
  • the second arm of the rocker 1, opposite to the first arm, has a ring 7 which substantially surrounds an escape wheel 8.
  • the escape wheel is driven by the wheel of the timepiece that pulls its energy from a spring barrel, for example.
  • the ring 7 is equipped with pallets of rest and pulse fixed on its inner belt. The pallets are intended to cooperate with teeth which is provided with the escape wheel 8 to alternately block said mobile 8 and then restart the plate 6.
  • the escapement of the invention is original in that the escape wheel 8 comprises a plurality of integral and coaxial wheels, at least first and second wheels 17 and 18, the first wheel 17 having a larger diameter than the second wheel 18. These first and second wheels each cooperate with a range of pulses 10 and 12 which is provided with the ring 7 The rest pallets 9 and 11 are arranged to cooperate with any one of the wheels of which the escape wheel 8 is provided.
  • the invention proposes an escapement wheel which can have more than two integral and coaxial mounted wheels, the essential part being to have at least two wheels of different diameters, each of which it activates its own pulse palette. It is the implementation of these two wheels of different diameters that improves the exhaust Melly Fromme both in terms of size and security that will be discussed later.
  • the pallets of rest can indifferently cooperate with the large or the small wheel or both at the same time or with a third wheel which would be entirely devolving to them.
  • the ring 7 comprises first and second paddles 12 and 10 cooperating respectively with the teeth which are provided with the first and second escape wheels 17 and 18.
  • first and second rest pallets 11 and 9 cooperate with the teeth provided with the first escape wheel 17.
  • the vanes are arranged alternately inside the ring 7.
  • the first pulse pallet 12 is followed by the first pallet of rest 11.
  • the latter is followed in turn by the second pulse pallet 10, the latter being followed finally by the second pallet of rest 9.
  • the second pulse pallet 10 is fixed to the end of a leg 19, this leg being secured to the ring 7 by its other end. Finally, it will be noted that the leg 19 is oriented substantially in the extension of the rod 3 forming part of the first arm of the rocker 1.
  • the figure 2 is an enlargement of the figure 7 and presents the end of the pulse caused by the tooth 14 on the pallet 10, the beginning of the pulse being materialized by the point 21 (carried over from the figure 6 ).
  • the angle ⁇ traveled by the pallet 10 is at least four times larger in the exhaust of the invention, which can only improve the security of the proposed system.
  • the figure 3 is an enlargement of the figure 13 and presents the end of the pulse caused by the tooth 16 on the pallet 12, the beginning of the pulse being materialized by the point 22 (carried over from the figure 12 ).
  • the angle ⁇ traveled by the pallet 12 is more important in the present invention than in the prior art in a proportion of 8.5 / 3.5 or 2.5.
  • the security of the system has been improved.
  • FIGS. Figures 4 to 15 A complete oscillation of the plate 6 which drives the balance (not shown) is illustrated in FIGS. Figures 4 to 15 .
  • the wheel 17 released can then rotate in the direction of the arrow 20 driven that it is by the wheel of the timepiece.
  • the tooth 14 of the small escape wheel 18 comes into contact with the pallet 10 attached to the end of the leg 19. This is the beginning of the impulse by the small wheel 18 which forces the rocker 1 to continue to turn in the direction of arrow 25.
  • the end of the impulse is shown in figure 7 .
  • the tooth 14 has left the pallet 10.
  • the rod 3 of the rocker 1 has turned in the direction of the arrow 25 and is ready to come to bear against a limiting pin 26.
  • the ring 7 has also tilted in the direction of the arrow 25, the tooth 13 of the big wheel 17 has approached the pallet of rest 9 carried by the ring 7.
  • the pin 5 of the plate 6 then enters the fork 4 causing the start of the release of the tooth 13 from the grip of the pallet 9 as shown in FIG. figure 10 .
  • the wheel 17 continuing its course in the direction of the arrow 20 causes the tooth 30 to meet the rest pallet 11 disposed on the ring 7. It is a resting phase which blocks the wheel 17, illustrated by the figure 14 .
  • the figure 15 shows the total rest of the tooth 30 on the pallet 11.
  • the pull exerted by the rotational force of the wheel 17 has penetrated the tooth 30 more deeply along the pallet 11 until this movement is stopped by the meeting of the fork 3 with the limiting pin 24.

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  • General Physics & Mathematics (AREA)
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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
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  • Transmission Devices (AREA)
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Abstract

The escapement has a latch (1) with a rod (3) and a ring (7) acting as two arms, respectively. The ring surrounds an escapement moving body (8), and has lock pallets (9, 11) and impulse pallets (10, 12) cooperated with teeth (13-16) of the moving body to alternately block the moving body and impart a plate (6). The moving body has a set of interdependent and coaxial large and small escapement wheels (17, 18), where one wheel (17) has a diameter larger than another wheel (18). Each of the wheels cooperates with the impulse pallets. The lock pallets are cooperated with any of the wheels.

Description

La présente invention est relative à un échappement à impulsions tangentielles comprenant une bascule articulée sur un pivot, cette bascule comportant comme premier bras une baguette terminée par une fourchette destinée à coopérer avec une cheville de plateau et comme second bras, opposé au premier, un anneau entourant substantiellement un mobile d'échappement, cet anneau étant équipé de palettes de repos et d'impulsion destinées à coopérer avec les dents dont est muni ledit mobile pour, alternativement, bloquer ce dernier puis relancer ledit plateau.The present invention relates to a tangential pulse escapement comprising a rocker articulated on a pivot, this rocker having as first arm a rod terminated by a fork intended to cooperate with a plateau pin and as a second arm, opposite the first, a ring substantially surrounding an escapement mobile, this ring being equipped with pallets rest and pulse for cooperating with the teeth which is provided with said mobile to alternately block the latter and then restart said plate.

Un tel échappement est connu et décrit dans l'ouvrage de Paul M. Chamberlain intitulé It's About Time et publié à Londres en 1978 par The Holland Press . L'auteur y décrit un échappement à impulsions tangentielles dû à Melly Frères en page 79. La figure 1 de la présente description montre un dessin de cet art antérieur.Such an escapement is known and described in the Paul M. Chamberlain entitled It's About Time and published in London in 1978 by The Holland Press . The author describes a tangential impulse escape due to Melly Frères on page 79. The figure 1 of the present description shows a drawing of this prior art.

L'échappement en question comprend une bascule B articulé sur un pivot. Le bras supérieur de cette bascule est constitué d'une baguette terminée par une fourchette destinée à coopérer avec une cheville L d'un plateau A. Le bras inférieur comprend un anneau entourant une roue d'échappement. L'anneau porte quatre palettes, soit deux palettes d'impulsion R et R' destinées à la relance du plateau A et deux palettes de repos D et D' destinées à bloquer la roue d'échappement, cette dernière comportant des dents E, F, G, H coopérant avec les palettes de l'anneau.The exhaust in question comprises a rocker B articulated on a pivot. The upper arm of this rocker consists of a rod terminated by a fork intended to cooperate with a peg L of a plate A. The lower arm comprises a ring surrounding an escape wheel. The ring carries four pallets, two pallets R and R 'pulse for the recovery of the plate A and two pallets of rest D and D' for blocking the escape wheel, the latter having teeth E, F , G, H cooperating with the pallets of the ring.

La figure 1 présente une phase de fonctionnement de l'échappement selon l'art antérieur. Précédant cette phase, la dent F de la roue était au repos en appui sur la palette D. Le plateau A tournant selon le sens de la flèche C a libéré la roue d'échappement qui tourne alors dans le sens de la flèche P. La dent E de la roue entre en contact avec la palette R de l'anneau ce qui fait tourner la bascule B dans le sens de la flèche Q et donne une impulsion au plateau par la cheville L et cela dans le sens de la flèche C. Une fois cette impulsion terminée, la roue et plus précisément sa dent H est bloquée par la palette D'. Dès cet instant le plateau parcourt son arc supplémentaire et inverse son sens. La cheville L entraîne alors la fourchette dans un sens opposé et la bascule tourne dans un sens opposé à celui montré par la flèche Q. Le blocage ou repos de la dent H sur la palette D' est rompu ce qui permet à la dent G de la roue de donner une nouvelle impulsion à l'anneau par sa palette R' et à relancer le plateau A.The figure 1 presents an operating phase of the exhaust according to the prior art. Prior to this phase, tooth F of the wheel was at rest on the pallet D. The turntable A in the direction of the arrow C has released the escapement wheel which then rotates in the direction of the arrow P. The tooth E of the wheel comes into contact with the pallet R of the ring which rotates the rocker B in the direction of the arrow Q and gives a pulse to the plate by the dowel L and that in the direction of the arrow C. Once this pulse is completed, the wheel and more precisely its tooth H is blocked by pallet D '. From this moment on, the tray goes through its extra bow and reverses its meaning. The ankle L then drives the fork in an opposite direction and the rocker rotates in a direction opposite to that shown by the arrow Q. The locking or resting of the tooth H on the pallet D 'is broken, which allows the tooth G to the wheel to give a new impetus to the ring by its pallet R 'and revive the plate A.

Les explications données ci-dessus montrent qu'on a affaire à un échappement dit à impulsions tangentielles. En effet l'impulsion est donnée par le sommet de la dent de la roue d'échappement sur un point de la palette qui reste le même pendant toute la durée de l'impulsion, à l'image des dents d'un engrenage. II n'y a donc pas ou très peu de glissement de la dent sur la palette, ce qui n'est pas le cas d'un échappement à ancre, par exemple. L'échappement à impulsions tangentielles n'implique donc aucun système de lubrification très délicat, sensible au vieillissement et couramment utilisé dans les échappements à ancre. On remarquera cependant qu'une lubrification simple est faite afin d'éviter des phénomènes d'usure des organes en contact.The explanations given above show that we are dealing with an exhaust called tangential impulses. Indeed the pulse is given by the top of the tooth of the escape wheel on a point of the pallet which remains the same for the duration of the pulse, like the teeth of a gear. There is therefore no or very little slip of the tooth on the pallet, which is not the case of an anchor escapement, for example. The tangential impulse exhaust therefore does not imply any very delicate lubrication system, sensitive to aging and commonly used in anchor escapements. However, it should be noted that simple lubrication is made to avoid wear phenomena of the bodies in contact.

On indiquera encore qu'un échappement à impulsions tangentielles a été décrit dans l'ouvrage de G. Daniels intitulé "La montre: Principes et Méthodes de Fabrication" en pages 249 à 252, éditions Scriptar S.A., La Conversion / Lausanne, 1993 . Cet échappement appelé coaxial comporte deux palettes réceptrices d'impulsions, l'une se trouvant sur la bascule et l'autre directement associée au plateau. On peut penser que la présente invention simplifie les choses en associant les deux palettes d'impulsion à la seule bascule.It will be further indicated that a tangential impulse escapement has been described in G. Daniels entitled "The watch: Principles and Methods of Manufacture" on pages 249 to 252, Éditions Scriptar SA, La Conversion / Lausanne, 1993 . This so-called coaxial escapement comprises two pulse receiving pallets, one located on the rocker and the other directly associated with the plate. It may be thought that the present invention simplifies things by associating the two impulse palettes with the single flip-flop.

Si l'on revient maintenant à l'échappement Melly Frères montré en figure 1 on verra qu'il est affecté d'au moins deux inconvénients: son encombrement et sa sécurité de fonctionnement qui ne semble pas assurée.If we go back now to the escape Melly Frères shown in figure 1 it will be seen that it is affected by at least two disadvantages: its size and its operational safety that does not seem assured.

La figure 1 montre que le système Melly Frères présente un encombrement difficilement compatible à son utilisation dans une montre de grandeur normale. Le système présente en effet une longueur qu'il sera difficile d'incorporer dans une pièce d'horlogerie portée au poignet.The figure 1 shows that the Melly Frères system has a footprint that is difficult to match when used in a watch of normal size. The system has indeed a length that will be difficult to incorporate into a timepiece worn on the wrist.

Sur la même figure on a tracé deux angles: un premier angle α montrant l'angle de déplacement de la palette R pendant la durée de l'impulsion et un second angle β figurant l'angle de déplacement de la pointe de la dent E pendant la même durée d'impulsion. On a: α = 2° et β = 8°. En d'autres termes l'impulsion reçue de la dent par la palette n'est effective que sur une excursion de 2 degrés de la bascule et on peut se demander si un angle si court permet de transmettre au plateau toute l'énergie déployée par la roue d'échappement. D'autre part cet angle si faible ne laisse aucune réserve de sécurité, compte tenu des tolérances de fabrication inhérentes aux pièces mécaniques qui sont ici en jeu. La situation est cependant légèrement meilleure en ce qui concerne la palette R' et la dent G où l'on a mesuré α = 3.5° et β=14° (situation non représentée au dessin).In the same figure, two angles are drawn: a first angle α showing the angle of movement of the pallet R during the duration of the pulse and a second angle β representing the angle of displacement of the tip of the tooth E during the same pulse duration. We have: α = 2 ° and β = 8 °. In other words, the impulse received from the tooth by the pallet is effective only on a 2 degree excursion of the rocker and it is questionable whether such a short angle makes it possible to transmit to the plate all the energy deployed by the pallet. the escape wheel. On the other hand, this angle so low leaves no reserve of safety, given the manufacturing tolerances inherent in the mechanical parts that are involved here. However, the situation is slightly better with respect to the pallet R 'and the tooth G where α = 3.5 ° and β = 14 ° were measured (situation not shown in the drawing).

Pour éviter les inconvénients décrits ci-dessus, la présente invention, en plus qu'elle obéit à ce qui est décrit au premier paragraphe de cette description, est remarquable en ce que le mobile d'échappement comprend une pluralité de roues solidaires et coaxiales, dont au moins des première et seconde roues, la première roue présentant un diamètre plus grand que la seconde, ces première et seconde roues coopérant chacune avec une palette d'impulsion dont est muni l'anneau, les palettes de repos étant arrangées pour coopérer avec l'une quelconque des roues dont est muni le mobile d'échappementTo avoid the drawbacks described above, the present invention, in addition to that which is described in the first paragraph of this description, is remarkable in that the escape wheel comprises a plurality of integral and coaxial wheels, at least first and second wheels, the first wheel having a larger diameter than the second, these first and second wheels each cooperating with a pulse pallet which is provided with the ring, the pallets of rest being arranged to cooperate with any of the wheels of which the escape wheel is provided

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

  • la figure 1 est une vue en plan d'un échappement à impulsions tangentielles selon l'art antérieur,
  • la figure 2 est une vue en plan de l'échappement selon l'invention où est illustrée la fin de l'impulsion par la petite roue,
  • la figure 3 est une vue en plan de l'échappement selon l'invention où est illustrée la fin de l'impulsion par la grande roue, et
  • les figures 4 à 15 sont des vues en plan expliquant les phases de fonctionnement de l'échappement selon l'invention, ces phases couvrant une oscillation complète du plateau.
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 a tangential pulse escapement according to the prior art,
  • the figure 2 is a plan view of the exhaust according to the invention where the end of the impulse is illustrated by the small wheel,
  • the figure 3 is a plan view of the exhaust according to the invention where the end of the impulse is illustrated by the ferris wheel, and
  • the Figures 4 to 15 are plan views explaining the operating phases of the exhaust according to the invention, these phases covering a complete oscillation of the plate.

Les figures 2 à 15 montrent des vues en plan de l'échappement à impulsions tangentielles. Cet échappement comprend une bascule 1 articulée sur un pivot 2. La bascule 1 comporte comme premier bras une baguette 3 terminée par une fourchette 4. La fourchette 4 coopère avec une cheville 5 solidaire d'un plateau 6. De façon connue, le plateau est attaché à un balancier spiral qui n'est pas représenté sur les dessins. Le second bras de la bascule 1, opposé au premier bras, comporte un anneau 7 qui entoure substantiellement un mobile d'échappement 8. De façon connue également, le mobile d'échappement est entraîné par le rouage de la pièce d'horlogerie qui tire son énergie d'un barillet à ressort, par exemple. Quand le mobile d'échappement n'est pas bloqué, il tourne dans le sens de la flèche 20. L'anneau 7 est équipé de palettes de repos et d'impulsion fixées sur sa ceinture intérieure. Les palettes sont destinées à coopérer avec des dents dont est muni le mobile d'échappement 8 pour alternativement, bloquer ledit mobile 8 puis relancer le plateau 6.The Figures 2 to 15 show plan views of the tangential pulse escapement. This escapement comprises a rocker 1 articulated on a pivot 2. The rocker 1 comprises as the first arm a rod 3 terminated by a fork 4. The fork 4 cooperates with an ankle 5 secured to a plate 6. In known manner, the plate is attached to a spiral balance that is not shown in the drawings. The second arm of the rocker 1, opposite to the first arm, has a ring 7 which substantially surrounds an escape wheel 8. In a known manner also, the escape wheel is driven by the wheel of the timepiece that pulls its energy from a spring barrel, for example. When the mobile escape is not blocked, it rotates in the direction of the arrow 20. The ring 7 is equipped with pallets of rest and pulse fixed on its inner belt. The pallets are intended to cooperate with teeth which is provided with the escape wheel 8 to alternately block said mobile 8 and then restart the plate 6.

L'échappement de l'invention est original en ce que le mobile d'échappement 8 comprend une pluralité de roues solidaires et coaxiales, dont au moins des première et seconde roues 17 et 18, la première roue 17 présentant un diamètre plus grand que la seconde roue 18. Ces première et seconde roues coopèrent chacune avec une palette d'impulsions 10 et 12 dont est muni l'anneau 7. Les palettes de repos 9 et 11 sont arrangées pour coopérer avec l'une quelconque des roues dont est muni le mobile d'échappement 8.The escapement of the invention is original in that the escape wheel 8 comprises a plurality of integral and coaxial wheels, at least first and second wheels 17 and 18, the first wheel 17 having a larger diameter than the second wheel 18. These first and second wheels each cooperate with a range of pulses 10 and 12 which is provided with the ring 7 The rest pallets 9 and 11 are arranged to cooperate with any one of the wheels of which the escape wheel 8 is provided.

Ainsi, dans son acception la plus générale, l'invention propose un mobile d'échappement pouvant compter plus de deux roues montées solidaires et coaxiales, l'essentiel consistant à disposer d'au moins de deux roues de diamètres différents, chacune de celle-ci activant sa propre palette d'impulsion. C'est la mise en oeuvre de ces deux roues de diamètres différents qui permet d'améliorer l'échappement Melly Frères tant en ce qui concerne l'encombrement qu'en ce qui a trait à la sécurité comme on le verra plus loin. Dans ce système nouveau, les palettes de repos peuvent indifféremment coopérer avec la grande ou la petite roue ou les deux à la fois ou encore avec une troisième roue qui leur serait entièrement dévolue.Thus, in its most general sense, the invention proposes an escapement wheel which can have more than two integral and coaxial mounted wheels, the essential part being to have at least two wheels of different diameters, each of which it activates its own pulse palette. It is the implementation of these two wheels of different diameters that improves the exhaust Melly Frères both in terms of size and security that will be discussed later. In this new system, the pallets of rest can indifferently cooperate with the large or the small wheel or both at the same time or with a third wheel which would be entirely devolving to them.

Plus précisément, dans le mode d'exécution pris ici en exemple non limitatif, l'anneau 7 comporte des première et seconde palettes d'impulsions 12 et 10 coopérant respectivement avec les dents dont sont pourvues les premières et seconde roues d'échappement 17 et 18. Dans ce même mode d'exécution, des première et seconde palettes de repos 11 et 9 coopèrent avec les dents dont est pourvue la première roue d'échappement 17.More specifically, in the embodiment taken here as a non-limiting example, the ring 7 comprises first and second paddles 12 and 10 cooperating respectively with the teeth which are provided with the first and second escape wheels 17 and 18. In this same embodiment, first and second rest pallets 11 and 9 cooperate with the teeth provided with the first escape wheel 17.

Dans cet exemple et comme le montrent bien les figures, les palettes sont arrangées de manière alternée à l'intérieur de l'anneau 7. En tournant dans le sens antihoraire, la première palette d'impulsion 12 est suivie par la première palette de repos 11. Cette dernière est suivie à son tour par la seconde palette d'impulsion 10, cette dernière étant suivie enfin par la seconde palette de repos 9.In this example and as the figures clearly show, the vanes are arranged alternately inside the ring 7. By turning counterclockwise, the first pulse pallet 12 is followed by the first pallet of rest 11. The latter is followed in turn by the second pulse pallet 10, the latter being followed finally by the second pallet of rest 9.

La seconde palette d'impulsion 10 est fixée à l'extrémité d'une jambe 19, cette jambe étant solidaire de l'anneau 7 par son autre extrémité. Finalement on signalera que la jambe 19 est orientée sensiblement dans le prolongement de la baguette 3 faisant partie du premier bras de la bascule 1.The second pulse pallet 10 is fixed to the end of a leg 19, this leg being secured to the ring 7 by its other end. Finally, it will be noted that the leg 19 is oriented substantially in the extension of the rod 3 forming part of the first arm of the rocker 1.

On a dit dans le préambule de cette description que l'échappement proposé dans la présente invention offre un encombrement réduit par rapport à celui que présente l'échappement de Melly Frères. La comparaison des figures 1 (Melly Frères) et 2 fait apparaître immédiatement l'avantage apporté par la présente invention, la longueur totale de l'échappement nouveau étant réduite de façon significative.It has been said in the preamble of this description that the escapement proposed in the present invention offers a smaller footprint compared to that exhibited by the Melly Frères escapement. The comparison of figures 1 (Melly Frères) and 2 immediately show the advantage provided by the present invention, the total length of the new exhaust being significantly reduced.

On a dit aussi que le nouvel échappement présente une meilleure sécurité par rapport à celle offerte par Melly Frères. Les figures 2 et 3 en apportent la preuve.It has also been said that the new exhaust has a better safety compared to that offered by Melly Frères. The Figures 2 and 3 bring proof.

La figure 2 est un agrandissement de la figure 7 et présente la fin de l'impulsion occasionnée par la dent 14 sur la palette 10, le début d'impulsion étant matérialisé par le point 21 (reporté de la figure 6). On mesure alors l'angle α parcouru par la palette 10 qui est de 9 degrés et l'angle β parcouru par la dent 14 qui est de 13 degrés, ces valeurs étant respectivement de 2 et 8 degrés chez Melly Frères. Par rapport à Melly Frères, l'angle α parcouru par la palette 10 est donc au moins quatre fois plus important dans l'échappement de l'invention, ce qui ne peut qu'améliorer la sécurité du système proposé.The figure 2 is an enlargement of the figure 7 and presents the end of the pulse caused by the tooth 14 on the pallet 10, the beginning of the pulse being materialized by the point 21 (carried over from the figure 6 ). We then measure the angle α traveled by the pallet 10 which is 9 degrees and the angle β traveled by the tooth 14 which is 13 degrees, these values being respectively 2 and 8 degrees in Melly Frères. Compared to Melly Frères, the angle α traveled by the pallet 10 is at least four times larger in the exhaust of the invention, which can only improve the security of the proposed system.

La figure 3 est un agrandissement de la figure 13 et présente la fin de l'impulsion occasionnée par la dent 16 sur la palette 12, le début d'impulsion étant matérialisé par le point 22 (reporté de la figure 12). Comme pour la figure précédente on peut mesurer l'angle α parcouru par la palette 12 qui est de 8,5 degrés et l'angle β parcouru par la dent 16 qui est de 21 degrés, ces valeurs étant respectivement de 3,5 et 14 degrés chez Melly Frères. On constate encore une fois que l'angle α parcouru par la palette 12 est plus important dans la présente invention que dans l'art antérieur dans une proportion de 8,5 / 3,5 soit de 2,5. Là encore la sécurité du système a été améliorée.The figure 3 is an enlargement of the figure 13 and presents the end of the pulse caused by the tooth 16 on the pallet 12, the beginning of the pulse being materialized by the point 22 (carried over from the figure 12 ). As for the previous figure, it is possible to measure the angle α traversed by the pallet 12 which is 8.5 degrees and the angle β traversed by the tooth 16 which is 21 degrees, these values being respectively 3.5 and 14. degrees at Melly Frères. Once again we see that the angle α traveled by the pallet 12 is more important in the present invention than in the prior art in a proportion of 8.5 / 3.5 or 2.5. Here again the security of the system has been improved.

Une oscillation complète du plateau 6 qui entraîne le balancier (non représenté) est illustrée aux figures 4 à 15. On va en analyser maintenant les différentes phases de fonctionnement.A complete oscillation of the plate 6 which drives the balance (not shown) is illustrated in FIGS. Figures 4 to 15 . We will now analyze the different phases of operation.

En figure 4 la dent 15 de la grande roue d'échappement 17 est immobilisée sur la palette de repos 11 quand la cheville 5 du plateau 6 tournant dans le sens de la flèche 23 pénètre dans la fourchette 4. C'est le début du dégagement. La baguette 3 de la bascule 1 repose contre une goupille de limitation 24.In figure 4 the tooth 15 of the large escape wheel 17 is immobilized on the pallet rest 11 when the pin 5 of the plate 6 rotating in the direction of the arrow 23 enters the fork 4. This is the beginning of the release. The rod 3 of the rocker 1 rests against a limiting pin 24.

En figure 5, la cheville 5, entraînée par le plateau 6 continuant à tourner dans le sens de la flèche 23, entraîne la bascule 1 dans le sens de la flèche 25. La dent 15 n'est plus retenue par la palette 11 et la roue d'échappement 17 est libérée.In figure 5 , the pin 5, driven by the plate 6 continuing to rotate in the direction of the arrow 23, drives the rocker 1 in the direction of the arrow 25. The tooth 15 is no longer retained by the pallet 11 and the wheel of exhaust 17 is released.

Comme le montre la figure 6, la roue 17 libérée peut alors tourner dans le sens de la flèche 20 entraînée qu'elle est par le rouage de la pièce d'horlogerie. La dent 14 de la petite roue d'échappement 18 entre en contact avec la palette 10 fixée à l'extrémité de la jambe 19. C'est le début de l'impulsion par la petite roue 18 qui force la bascule 1 à continuer à tourner dans le sens de la flèche 25.As shown in figure 6 , the wheel 17 released can then rotate in the direction of the arrow 20 driven that it is by the wheel of the timepiece. The tooth 14 of the small escape wheel 18 comes into contact with the pallet 10 attached to the end of the leg 19. This is the beginning of the impulse by the small wheel 18 which forces the rocker 1 to continue to turn in the direction of arrow 25.

La fin de l'impulsion est montrée en figure 7. La dent 14 a quitté la palette 10. La baguette 3 de la bascule 1 a tourné dans le sens de la flèche 25 et est prête à venir s'appuyer contre une goupille de limitation 26. L'anneau 7 ayant aussi basculé dans le sens de la flèche 25, la dent 13 de la grande roue 17 s'est approchée de la palette de repos 9 portée par l'anneau 7.The end of the impulse is shown in figure 7 . The tooth 14 has left the pallet 10. The rod 3 of the rocker 1 has turned in the direction of the arrow 25 and is ready to come to bear against a limiting pin 26. The ring 7 has also tilted in the direction of the arrow 25, the tooth 13 of the big wheel 17 has approached the pallet of rest 9 carried by the ring 7.

La prise de repos de la dent 13 sur la palette 9 est représentée en figure 8 provoquant le blocage de la grande roue 17.The rest of the tooth 13 on the pallet 9 is shown in FIG. figure 8 causing the blocking of the big wheel 17.

En figure 9, la force exercée par la dent 13 sur la palette 9, ce que les horlogers appelle du nom de tirage, fait glisser plus profondément la pointe de la dent 13 sur la palette 9. Ce mouvement est stoppé par la goupille de limitation 26 au moment où la baguette 3 vient s'appuyer contre ladite goupille. Cette situation représente le repos total de la bascule 1. Dès cet instant la cheville 5 sort de la fourchette 4 et le plateau 6, relancé par l'impulsion qu'il a reçu de la dent 14 (figure 6), accomplit son arc supplémentaire selon le sens de la flèche 23 puis, arrivé en bout de course, inverse son sens comme l'indique la flèche 27.In figure 9 , the force exerted by the tooth 13 on the pallet 9, what the watchmakers call the pulling name, slides more deeply the tip of the tooth 13 on the pallet 9. This movement is stopped by the limiting pin 26 at the moment where the rod 3 comes to bear against said pin. This situation represents the total rest of the rocker 1. From this moment the pin 5 leaves the fork 4 and the plate 6, revived by the pulse that it received from the tooth 14 ( figure 6 ), completes its additional arc in the direction of the arrow 23 and, at the end of the race, reverses its direction as indicated by the arrow 27.

La cheville 5 du plateau 6 pénètre alors dans la fourchette 4 provoquant le début du dégagement de la dent 13 de l'emprise de la palette 9 comme cela est représenté en figure 10.The pin 5 of the plate 6 then enters the fork 4 causing the start of the release of the tooth 13 from the grip of the pallet 9 as shown in FIG. figure 10 .

En figure 11 la cheville 5 entraîne la bascule 1 dans le sens de la flèche 28, le plateau 6 continuant sa course selon le sens de la flèche 27. Le dégagement de la dent 13 est alors total ce qui va libérer la roue 17.In figure 11 the pin 5 drives the rocker 1 in the direction of the arrow 28, the plate 6 continuing its stroke in the direction of the arrow 27. The clearance of the tooth 13 is then total which will release the wheel 17.

Comme on le voit en figure 12, la roue 17 entraînée par le rouage tourne dans le sens de la flèche 20. La dent 16 de la roue 17 entre alors en contact avec la palette d'impulsion 12 et c'est le début d'une nouvelle impulsion qui fait tourner la bascule dans le sens de la flèche 28 et relance le plateau 6 dans le sens de la flèche 27.As we see in figure 12 , the wheel 17 driven by the wheel rotates in the direction of the arrow 20. The tooth 16 of the wheel 17 then comes into contact with the pulse pallet 12 and this is the beginning of a new pulse that turns the toggles in the direction of the arrow 28 and restarts the plate 6 in the direction of the arrow 27.

La fin de l'impulsion sur la grande roue 17 est montrée en figure 13. La baguette 3 s'est rapprochée de la goupille de limitation 24. La roue 17 est alors libre de reprendre sa course selon la flèche 20.The end of the impulse on the big wheel 17 is shown in figure 13 . The rod 3 has moved closer to the limit pin 24. The wheel 17 is then free to resume its travel along the arrow 20.

La roue 17 continuant sa course selon le sens de la flèche 20 provoque la rencontre de la dent 30 avec la palette de repos 11 disposée sur l'anneau 7. C'est une phase de prise de repos qui bloque la roue 17, illustrée par la figure 14.The wheel 17 continuing its course in the direction of the arrow 20 causes the tooth 30 to meet the rest pallet 11 disposed on the ring 7. It is a resting phase which blocks the wheel 17, illustrated by the figure 14 .

La figure 15 montre le repos total de la dent 30 sur la palette 11. Le tirage exercé par la force de rotation de la roue 17 a fait pénétrer la dent 30 plus profondément le long de la palette 11 jusqu'à ce que ce mouvement soit arrêté par la rencontre de la fourchette 3 avec la goupille de limitation 24. A partir de maintenant le plateau 6, relancé par l'impulsion qu'il a reçue de la dent 16 (figure 12), peut parcourir librement son arc supplémentaire selon le sens de la flèche 27, la cheville 5 étant sortie de la fourchette 4, ce plateau arrivé en bout de course, inversant son sens comme l'indique la flèche 23.The figure 15 shows the total rest of the tooth 30 on the pallet 11. The pull exerted by the rotational force of the wheel 17 has penetrated the tooth 30 more deeply along the pallet 11 until this movement is stopped by the meeting of the fork 3 with the limiting pin 24. From now on the plate 6, relaunched by the pulse it received from the tooth 16 ( figure 12 ), can freely travel its additional arc in the direction of the arrow 27, the pin 5 being out of the fork 4, this plate arrived at the end of the stroke, reversing its direction as indicated by the arrow 23.

Un cycle ou oscillation de la bascule 1 est ainsi terminé et va reprendre immédiatement. En effet, la cheville 5 revenant selon le sens de la flèche 23, va pénétrer dans la fourchette 4 ce qui ramène le lecteur à la situation présentée en figure 4.A cycle or oscillation of the rocker 1 is thus completed and will resume immediately. Indeed, the peg 5 returning in the direction of the arrow 23, will enter the range 4 which brings the reader to the situation presented in figure 4 .

Claims (5)

  1. Tangential impulse escapement including a lever device (1) hinged on a pivot (2), said lever device including as a first arm a lever (3) ending in a fork (4) for cooperating with an impulse pin (5) of a roller (6) and as a second arm, opposite to the first, a ring (7) substantially surrounding an escapement wheel set (8), said ring being fitted with pallet locking pallet-stones (9, 11) and impulse pallet-stones (10, 12) for cooperating with the teeth of said wheel set, in order, alternately, to lock the latter and then impart to said roller an impulse, characterized in that the escape wheel set (8) includes a plurality of secured and coaxial wheels, including at least first (17) and second (18) wheels, the first wheel (17) having a larger diameter than the second (18), the first and second wheels each cooperating with an impulse pallet-stone (10, 12) fitted to the ring (7), the locking pallet-stones (9, 11) being arranged for cooperating with any of the wheels (17, 18) of the escapement wheel set (8).
  2. Escapement according to claim 1, characterized in that the ring (7) includes first (12) and second (10) impulse pallet-stones respectively cooperating with the teeth of the first (17) and second (18) escapement wheels, and first (11) and second (9) pallet locking faces cooperating with the teeth of the first escapement wheel (17).
  3. Escapement according to claim 2, characterized in that the pallet-stones are arranged alternately inside the ring (7), the first impulse face (12) being followed by the first locking pallet-stone (11), the latter being followed in turn by the second impulse pallet-stone (10), the latter being followed finally by the second locking pallet-stone (9).
  4. Escapement according to claim 2, characterized in that the second impulse pallet-stone (10) is secured to the end of a leg (19), said leg being secured to the ring by the other end thereof.
  5. Escapement according to claim 4, characterized in that the leg (19) is orientated substantially in the extension of the lever (3) forming part of the first arm of the lever device (1).
EP07103860A 2007-03-09 2007-03-09 Exhaust with tangential impulses Active EP1967919B1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
AT07103860T ATE433136T1 (en) 2007-03-09 2007-03-09 ESCAPEMENT WITH TANGENTIAL IMPULSES
ES07103860T ES2325099T3 (en) 2007-03-09 2007-03-09 ESCAPE OF WATCH WITH TANGENTIAL IMPULSES.
DE602007001230T DE602007001230D1 (en) 2007-03-09 2007-03-09 Inhibition with tangential impulses
EP07103860A EP1967919B1 (en) 2007-03-09 2007-03-09 Exhaust with tangential impulses
JP2008054385A JP5153387B2 (en) 2007-03-09 2008-03-05 An escapement that receives an impact in the tangential direction of the escape wheel
US12/043,251 US7540654B2 (en) 2007-03-09 2008-03-06 Tangential impulse escapement
CN2008100834883A CN101261493B (en) 2007-03-09 2008-03-07 Exhaust with tangential impulses
HK09102047.0A HK1124403A1 (en) 2007-03-09 2009-03-03 Tangential impulse escapement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07103860A EP1967919B1 (en) 2007-03-09 2007-03-09 Exhaust with tangential impulses

Publications (2)

Publication Number Publication Date
EP1967919A1 EP1967919A1 (en) 2008-09-10
EP1967919B1 true EP1967919B1 (en) 2009-06-03

Family

ID=38896980

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07103860A Active EP1967919B1 (en) 2007-03-09 2007-03-09 Exhaust with tangential impulses

Country Status (8)

Country Link
US (1) US7540654B2 (en)
EP (1) EP1967919B1 (en)
JP (1) JP5153387B2 (en)
CN (1) CN101261493B (en)
AT (1) ATE433136T1 (en)
DE (1) DE602007001230D1 (en)
ES (1) ES2325099T3 (en)
HK (1) HK1124403A1 (en)

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CN102736504A (en) * 2011-03-31 2012-10-17 卡迪亚创造工作室股份公司 Escapement mechanism, in particular for a clock movement
WO2015018636A2 (en) 2013-08-05 2015-02-12 The Swatch Group Research And Development Ltd Regulator system for mechanical watch
RU2749943C2 (en) * 2016-10-18 2021-06-21 Эта Са Мануфактюр Орложэр Сюис Resonator for mechanical watches

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JP5729666B2 (en) * 2010-09-14 2015-06-03 セイコーインスツル株式会社 Watch detent escapement and mechanical watch
EP2607968B1 (en) * 2011-12-21 2014-10-08 Vaucher Manufacture Fleurier S.A. Escapement mechanism
CH706274B1 (en) * 2012-03-29 2016-12-15 Nivarox Far Sa A clock exhaust mechanism comprising a one-piece flexible mechanism for transmitting pulses between the balance and the escapement wheel.
EP2831677B1 (en) * 2012-03-29 2016-05-25 Nivarox-FAR S.A. Flexible escapement mechanism
WO2013144237A1 (en) 2012-03-29 2013-10-03 Nivarox-Far S.A. Flexible lever-free escapement mechanism
JP5918439B2 (en) 2012-03-29 2016-05-18 ニヴァロックス−ファー ソシエテ アノニム Flexible escape mechanism with balance without rollers
US9052694B2 (en) * 2012-06-07 2015-06-09 Detra Sa Escapement device for timepiece
EP2706416B1 (en) 2012-09-07 2015-11-18 The Swatch Group Research and Development Ltd Constant force flexible anchor
EP2942147B1 (en) * 2014-05-08 2018-11-21 Nivarox-FAR S.A. Clock escapement mechanism without lubrication
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EP4105731B1 (en) * 2021-06-17 2024-01-03 Montres Breguet S.A. Natural escapement for timepiece movement and timepiece movement comprising such an escapement

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CN102736504A (en) * 2011-03-31 2012-10-17 卡迪亚创造工作室股份公司 Escapement mechanism, in particular for a clock movement
WO2015018636A2 (en) 2013-08-05 2015-02-12 The Swatch Group Research And Development Ltd Regulator system for mechanical watch
US10222757B2 (en) 2013-08-05 2019-03-05 The Swatch Group Research And Development Ltd Regulating system for a mechanical watch
RU2749943C2 (en) * 2016-10-18 2021-06-21 Эта Са Мануфактюр Орложэр Сюис Resonator for mechanical watches

Also Published As

Publication number Publication date
EP1967919A1 (en) 2008-09-10
JP5153387B2 (en) 2013-02-27
HK1124403A1 (en) 2009-07-10
CN101261493B (en) 2011-01-26
ES2325099T3 (en) 2009-08-25
DE602007001230D1 (en) 2009-07-16
JP2008224665A (en) 2008-09-25
US7540654B2 (en) 2009-06-02
ATE433136T1 (en) 2009-06-15
US20080219104A1 (en) 2008-09-11
CN101261493A (en) 2008-09-10

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