EP1983389A1 - Escapement comprising two escape wheels - Google Patents

Escapement comprising two escape wheels Download PDF

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Publication number
EP1983389A1
EP1983389A1 EP07106377A EP07106377A EP1983389A1 EP 1983389 A1 EP1983389 A1 EP 1983389A1 EP 07106377 A EP07106377 A EP 07106377A EP 07106377 A EP07106377 A EP 07106377A EP 1983389 A1 EP1983389 A1 EP 1983389A1
Authority
EP
European Patent Office
Prior art keywords
blocker
wheels
rest
pivot
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07106377A
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German (de)
French (fr)
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EP1983389B1 (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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Publication date
Application filed by ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to DE602007003445T priority Critical patent/DE602007003445D1/en
Priority to EP07106377A priority patent/EP1983389B1/en
Priority to AT07106377T priority patent/ATE449985T1/en
Priority to JP2008106168A priority patent/JP5153430B2/en
Priority to US12/105,644 priority patent/US7607822B2/en
Priority to CN2008100929578A priority patent/CN101329548B/en
Publication of EP1983389A1 publication Critical patent/EP1983389A1/en
Priority to HK09105363.9A priority patent/HK1127968A1/en
Application granted granted Critical
Publication of EP1983389B1 publication Critical patent/EP1983389B1/en
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Anticipated expiration legal-status Critical

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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 detent escapement for a timepiece comprising first and second escape wheels each driven by independent gear wheels and barrels and a rocker arm on the pivot of which is fixed a plate, the axis of rotation of said pivot being located substantially equal distances from the axes of rotation of the first and second wheels, said plate carrying an ankle arranged to cooperate with a blocker articulated on a pivot, and carrying first and second impulse vanes arranged to cooperate respectively with the first and second wheels.
  • the Daniels exhaust comprises a blocker 40 located between two escape wheels A and B.
  • This blocker 40 is articulated on a pivot 41 and is controlled by an ankle 42 of the plate 43.
  • the plate 43 is secured to a non-beam shown and the pivot 44 of the plate is substantially equal distances from the axes of rotation of the wheels A and B.
  • the plate 43 carries two vanes 45 and 46 arranged to receive pulses respectively of the wheel A and the wheel B.
  • wheels A and B are at rest.
  • the blocker 40 carries three pallets of rest C, S1 and S2. The wheel A is blocked by the pallet C and the wheel B by the pallet S1. It is a first stable equilibrium state where the blocker 40 is inclined towards the wheel A.
  • the plate 43 rotates in the direction of the arrow 47.
  • the blocker 40 rotates counterclockwise and passes through a middle position, which releases the tooth 51 of the wheel A.
  • the latter then rotates counterclockwise and gives a pulse by its tooth 48 to the pallet 45 of the plate 43.
  • the plate 43 continuing its travel in the direction of the arrow 47, the blocker then inclines to the wheel B which releases the tooth 50 of the pallet S1 rest then almost simultaneously engages the tooth 49 on the pallet of rest C of the blocker 40. There is transfer of rest of S1 with C, the wheel B then turning on a small angle in the clockwise direction the time of this transfer.
  • the present invention in addition to that it obeys what is described in the first paragraph of this description is remarkable in that the blocker carries first and second pallets of rest arranged to cooperate respectively with the first and second wheels, the blocker having a rod whose end cooperates with the plate pin, the axis that has the rod cutting at the same time the axis of the pivot of the plate and the axis of the pivot blocker when the first and second wheels are at rest on the first and second pallets of rest, said blocker still having means for reengagement of the first and second pallets of rest respectively in the first and second escape wheels.
  • the figure 2 is a plan view of the mechanism of the two-wheeled escapement according to a first embodiment of the invention.
  • This exhaust comprises first and second escape wheels 1 and 2 each driven by gear wheels and independent barrels.
  • wheel 1 rotates clockwise while wheel 2 turns counterclockwise.
  • the figure 2 shows a plate 4 articulated on a pivot 3.
  • the plate 4 is associated with a spiral balance not shown.
  • the axis of rotation of the pivot 3 is located substantially equal distances from the axes of rotation 5 and 6 of the first and second wheels 1 and 2.
  • the plate 4 carries a pin 7 arranged to cooperate with a blocker 8, the blocker being hinged on a pivot 9.
  • the plate 4 still carries first and second impulse pallets 10 and 11, the pallets being arranged to cooperate respectively with the first and second wheels 1 and 2.
  • the invention is distinguished from the prior art by that the blocker 8 carries first and second rest pallets (and not three) 12 and 13 arranged to cooperate respectively with the first and second escape wheels 1 and 2.
  • the blocker 8 has a rod 14 whose end 15 cooperates with the peg 7 of the plate 4.
  • the rod 14 has an axis 17 which cuts at the same time the axis of the pivot 3 of the plate 4 and the axis of the pivot 9 of the jammer when the first and second wheels 1 and 2 are at rest on the first and second pallets of rest 12 and 13, the blocker thus having a single state of stable equilibrium said monostable when the wheels are at rest.
  • figure 2 shows again that the blocker 8 has means 16 for reengaging the first and second pallets of rest 12 and 13 in, respectively, the first and second escape wheels 1 and 2.
  • the figure 2 shows again that the exhaust of the invention is provided with means 16 for reengaging said vanes between the teeth of said wheels.
  • These means are fins 30 and 31 disposed on either side of the rod 14 of the blocker 8, these fins cooperating respectively with the first and second escape wheels 1 and 2. The role played by these means will be explained later. clearance.
  • the figure 2 also shows that the pallets of rest 12 and 13 are executed in a special way, this execution being motivated by reasons of operation that will be explained later.
  • the first pallet of rest 12 has first and second plates 20 and 22 which are arranged next to each other, the first plate 20 having a first plane of rest 24 and the second plate 22 having a second plan of rest 26.
  • the rest planes 24 and 26 are inclined relative to each other to form a rest line 28.
  • the second pallet rest 13 which has first and second pads 21 and 23 respectively having first and second planes of rest 25 and 27 inclined with respect to each other to form a rest line 29.
  • Other ways of making these pallets of rest or locking means are possible and described in detail in the document EP-A-1'708'047 .
  • the plate 4 rotates in the direction of the arrow 60.
  • the wheels 1 and 2 are at rest on the pallets 12 and 13, respectively by their teeth 61 and 62 locked on the lines of rest 28 and 29.
  • the pin 7 enters into contact with the end 15 of the strip 14 of the blocker 8.
  • This blocker is centered with respect to the wheels, that is to say that the axis 17 of its strip 14 intersects the axes of the pivots 3 and 9 of the plate and the blocker respectively, as has already been said about the figure 2 . This is the beginning of the release of wheel 1.
  • the plate 4 has continued its course in the direction of the arrow 60.
  • the pin 7 has driven the blocker 8 in the direction of the arrow 63 forcing the tooth 61 of the wheel 1 to climb the plane 24 of the wafer 20 composing the pallet 12.
  • the wheel 1 undergoes a slight recoil movement caused by this escalation indicated by the arrow 64.
  • the tooth 62 of the wheel 2 has climbed the plane 27 of the plate 23 forming the pallet 13 forcing the wheel 2 to a slight decline indicated by the arrow 65. It is the end of the release and the beginning of the release of the wheel 1.
  • the tooth 67 of the wheel 1 is at the end of the impulse and has restarted the plate 4 in the same direction (arrow 60) it had so far.
  • the tooth 67 of the wheel 1 is about to leave the pulse pallet 10.
  • the end 15 of the rod 14 has passed the arcuate surface 69 of the ankle 7, which has maintained the same angle of inclination. for the rod 14.
  • the tooth 68 of the wheel 1 comes into contact with the fin 30 integral with the rod 14.
  • the shape of this fin is arranged to rotate the rod blocker 8 in the direction of the arrow 70 when the tooth 68 of the wheel 1 rotates in the direction of the arrow 66.
  • the rotation of the blocker causes the reengagement of the pallet 12 in the wheel 1, this pallet cutting the trajectory of the tooth 71 of this same wheel.
  • the rotation of the blocker 8 has slightly lowered the tooth 62 of the wheel 2 along the plane 27 of the plate 23 forming the pallet 13. This descent causes a slight rotation of the wheel 2 in the direction of the arrow 72.
  • the figure 7 shows the rest of the wheel 1 on the pallet 12.
  • the plate 4 continued its course in the direction of the arrow 60 to occupy the place shown in the drawing.
  • the tooth 71 of the wheel 1 driven according to the arrow 66 has fallen on the plane 24 of the wafer 20 forming the pallet 12.
  • the wheel 1 is blocked. From this moment, the rotational force of the wheel 1 causes its tooth 71 to descend along the plane 24.
  • the rotational force of the wheel 2 causes its tooth 62 to descend along the plane 27 of the wafer 23 forming the pallet 13. This is what is called the draw in the watchmaking language.
  • the blocker 8 continues to rotate in the direction of the arrow 70.
  • the plate has continued its course in the direction of the arrow 73.
  • the pin 7 has driven the blocker 8 in the direction of the arrow 70 forcing the tooth 62 of the wheel 2 to climb the plane 25 of the plate 21 forming the pallet 13.
  • the wheel 2 then undergoes a slight recoil movement caused by this escalation indicated by the arrow 65.
  • the tooth 71 of the wheel 1 has climbed the plane 26 of the plate 22 forming the pallet 12 forcing the wheel 1 to a slight recoil indicated by the arrow 64. It is the end of the release and the beginning of the release of the wheel 2.
  • the tooth 75 of the wheel 2 is at the end of the pulse and has restarted the plate 4 in the same direction (arrow 73) that it had so far.
  • the tooth 75 of the wheel 2 is leaving the impulse pallet 11.
  • the end 15 of the rod 14 has skirted the arcuate surface 69 of the ankle 7, which has maintained the same angle of inclination for the rod 14.
  • the tooth 76 of the wheel 2 comes into contact with the fin 31 integral with the rod 14.
  • the shape of this fin is arranged to rotate the blocker in the direction of the arrow 63 when the tooth 76 of the wheel 2 rotates in the direction of the arrow 74.
  • the rotation of the blocker causes the reengagement of the pallet 13 in the wheel 2, this pallet cutting the trajectory of the tooth 77 of this same wheel.
  • the rotation of the blocker 8 has slightly lowered the tooth 71 of the wheel 1 along the plane 26 of the wafer 22 forming the pallet 12. This descent causes a slight rotation of the wheel 1 in the direction of the arrow 78.
  • the figure 13 shows the rest of the wheel 2 on the pallet 13.
  • the tray 4 continued its course in the direction of the arrow 73 to occupy the place shown in the drawing.
  • the tooth 77 of the wheel 2 driven according to the arrow 74 fell on the plane 25 of the plate 21 constituting the pallet 13.
  • the wheel 2 is blocked. From this moment, the rotational force of the wheel 2 lowers its tooth 77 along the plane 25.
  • the rotational force of the wheel 1 causes its tooth 71 to descend along the plane 26 of the wafer 22 forming the palette 12. This is the draw already mentioned above.
  • the blocker 8 continues to rotate in the direction of the arrow 63.
  • the reengaging means 16 of the pallets of rest in the toothing of the corresponding wheels are fins 30 and 31 disposed on either side of the rod 14 of the blocker 8.
  • the figure 15 presents a second embodiment of the invention.
  • the reengagement means 16 are no longer fins described above but a spring acting on the blocker 8.
  • the spring in question is a leaf spring 80, one end 81 is fixed to the frame which comprises the piece of the other end 82 is arranged to exert an equal force on the first and second pallets of rest 12 and 13 when the axis 17 of the rod 14 of the blocker 8 intersects at the same time the pivot axis 3 of the plate 4 and the axis of the pivot 9 of the blocker 8, in other words when the blocker occupies a centered position with respect to the two escape wheels.
  • the leaf spring 80 may be replaced by other embodiments. It could be, for example, a spiral spring whose end is fixed to the frame and whose other end is fixed to the pivot 9 of the blocker 8. This solution, not illustrated here could be replaced by two spring blades arranged on the side and else of the rod 14 or by a single blade fixed on the one hand on the blocker at its first end and secondly retained at its second end between two pins fixed on the frame of the timepiece.
  • the independent double-wheel escapement allows for a dual display, each indicating different time zones.

Abstract

The escapement has escape wheels (1, 2) driven by independent gear trains, barrels. A roller carries impulse pallet stones (10, 11) that are arranged for cooperating respectively with the wheels. A brake lever (8) carries locking pallet stones (12, 13) that are arranged for cooperating respectively with the wheels. An axis of the stick intersects an axis of a pivot (3) of the roller and an axis of the pivot of the lever, when the wheels are locked on the pallet stones. The lever comprises a re-engaging unit (16) for re-engaging the pallet stones respectively in the wheels.

Description

La présente invention est relative à un échappement à détente pour pièce d'horlogerie comportant des première et seconde roues d'échappement entraînées chacune par des rouages et barillets indépendants et un balancier sur le pivot duquel est fixé un plateau, l'axe de rotation dudit pivot se trouvant situé sensiblement à égales distances des axes de rotation des première et seconde roues, ledit plateau portant une cheville arrangée pour coopérer avec un bloqueur articulé sur un pivot, et portant des première et seconde palettes d'impulsion arrangées pour coopérer respectivement avec les première et seconde roues.The present invention relates to a detent escapement for a timepiece comprising first and second escape wheels each driven by independent gear wheels and barrels and a rocker arm on the pivot of which is fixed a plate, the axis of rotation of said pivot being located substantially equal distances from the axes of rotation of the first and second wheels, said plate carrying an ankle arranged to cooperate with a blocker articulated on a pivot, and carrying first and second impulse vanes arranged to cooperate respectively with the first and second wheels.

Un échappement répondant dans les grandes lignes à la description qui vient d'être donnée a été décrit dans l'ouvrage intitulé: " La Montre: principes et méthodes de fabrication" de Georges Daniels, Editions Scriptar S.A., La Conversion, Lausanne 1993. Cet échappement est exposé dans les pages 236 à 239 dudit ouvrage et un dessin est reproduit en figure 1 du présent document pour illustrer cet art antérieur.An escapement broadly corresponding to the description that has just been given has been described in the book entitled: " The Watch: principles and methods of manufacture "Georges Daniels, Editions Scriptar SA, La Conversion, Lausanne 1993. This escapement is exposed in pages 236 to 239 of that work and a drawing is reproduced figure 1 of this document to illustrate this prior art.

Comme le montre la figure 1, l'échappement Daniels comporte un bloqueur 40 situé entre deux roues d'échappement A et B. Ce bloqueur 40 est articulé sur un pivot 41 et est commandé par une cheville 42 du plateau 43. Le plateau 43 est solidaire d'un balancier non représenté et le pivot 44 du plateau se trouve sensiblement à distances égales des axes de rotation des roues A et B. Le plateau 43 porte deux palettes 45 et 46 arrangées pour recevoir des impulsions respectivement de la roue A puis de la roue B. Dans la configuration montrée en figure 1 les roues A et B sont au repos. Le bloqueur 40 porte trois palettes de repos C, S1 et S2. La roue A est bloquée par la palette C et la roue B par la palette S1. C'est un premier état d'équilibre stable où le bloqueur 40 est incliné vers la roue A. Le plateau 43 tourne dans le sens de la flèche 47. Lorsque sa cheville 42 pénètre dans la fourchette 52, le bloqueur 40 tourne dans le sens antihoraire et passe par une position médiane, ce qui dégage la dent 51 de la roue A. Cette dernière tourne alors dans le sens antihoraire et donne une impulsion par sa dent 48 à la palette 45 du plateau 43. Le plateau 43 continuant sa course dans le sens de la flèche 47, le bloqueur s'incline alors vers la roue B ce qui dégage la dent 50 de la palette de repos S1 puis engage presque simultanément la dent 49 sur la palette de repos C du bloqueur 40. II y a transfert de repos de S1 à C, la roue B tournant alors sur un petit angle dans le sens horaire le temps de ce transfert. Dans sa position médiane la palette de repos S2 du bloqueur 40 coupe la trajectoire des dents de la roue A et notamment de la dent 53 qui vient finalement se reposer sur S2 quand la cheville 42, tournant dans le sens de la flèche 47 est sortie de la fourchette 52. Dès maintenant on a un second état d'équilibre stable où le bloqueur 40 est incliné vers la roue B. On appellera donc bistable ce système d'échappement.As shown in figure 1 , the Daniels exhaust comprises a blocker 40 located between two escape wheels A and B. This blocker 40 is articulated on a pivot 41 and is controlled by an ankle 42 of the plate 43. The plate 43 is secured to a non-beam shown and the pivot 44 of the plate is substantially equal distances from the axes of rotation of the wheels A and B. The plate 43 carries two vanes 45 and 46 arranged to receive pulses respectively of the wheel A and the wheel B. In the configuration shown in figure 1 wheels A and B are at rest. The blocker 40 carries three pallets of rest C, S1 and S2. The wheel A is blocked by the pallet C and the wheel B by the pallet S1. It is a first stable equilibrium state where the blocker 40 is inclined towards the wheel A. The plate 43 rotates in the direction of the arrow 47. When its pin 42 enters the fork 52, the blocker 40 rotates counterclockwise and passes through a middle position, which releases the tooth 51 of the wheel A. The latter then rotates counterclockwise and gives a pulse by its tooth 48 to the pallet 45 of the plate 43. The plate 43 continuing its travel in the direction of the arrow 47, the blocker then inclines to the wheel B which releases the tooth 50 of the pallet S1 rest then almost simultaneously engages the tooth 49 on the pallet of rest C of the blocker 40. There is transfer of rest of S1 with C, the wheel B then turning on a small angle in the clockwise direction the time of this transfer. In its median position, the rest pallet S2 of the blocker 40 intersects the trajectory of the teeth of the wheel A and in particular of the tooth 53 which finally comes to rest on S2 when the pin 42, rotating in the direction of the arrow 47, has come out of the fork 52. From now on, there is a second stable equilibrium state where the blocker 40 is inclined towards the wheel B. This exhaust system will therefore be called bistable.

L'échappement qui vient d'être décrit, pour ingénieux qu'il puisse paraître, souffre cependant de lacunes non négligeables. De l'aveu même de l'auteur de l'ouvrage cité, cet échappement est difficile à construire et les trous de pivots, les palettes de repos, la cheville de plateau ainsi que les palettes d'impulsion doivent être implantées avec précision pour éviter toute perte d'efficacité dans le fonctionnement. Par ailleurs l'échappement nécessite trois palettes de repos, alors que l'échappement de la présente invention se suffit de deux palettes comme on le verra plus loin. Dans cet art antérieur on a vu qu'il y a transfert de repos d'une palette S1 à l'autre C (et dans l'autre sens de S2 à C) laissant échapper ainsi la roue concernée B (et dans l'autre sens A) un court instant ce qui n'ira pas sans perturbations sur le fonctionnement du système. Enfin le système bistable de l'antériorité paraît bien différent à mettre en oeuvre que le système monostable que va proposer la présente invention, le système bistable ne conduisant pas, à proprement parler, à un échappement dit à détente.The exhaust that has just been described, ingenious as it may seem, nevertheless suffers from significant gaps. By the admission of the author of the work cited, this escapement is difficult to build and the pivot holes, the pallets of rest, the plateau pin as well as the impulse pallets must be implanted with precision to avoid any loss of efficiency in operation. In addition, the exhaust requires three pallets of rest, while the exhaust of the present invention is sufficient two pallets as will be seen later. In this prior art, it has been seen that there is rest transfer from one pallet S1 to the other C (and in the other direction from S2 to C) thus allowing the wheel concerned B to escape (and in the other sense A) a short time which will not go without disturbing the operation of the system. Finally, the bistable system of prior art seems very different to implement than the monostable system that will propose the present invention, the bistable system not leading, strictly speaking, to an exhaust called expansion.

Pour éviter les inconvénients qui viennent d'être cités, 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 bloqueur porte des première et seconde palettes de repos arrangées pour coopérer respectivement avec les première et seconde roues, le bloqueur présentant une baguette dont l'extrémité coopère avec la cheville de plateau, l'axe que présente la baguette coupant à la fois l'axe du pivot du plateau et l'axe du pivot du bloqueur quand les première et seconde roues sont au repos sur les première et seconde palettes de repos, ledit bloqueur présentant encore des moyens de réengagement des première et seconde palettes de repos respectivement dans les première et seconde roues d'échappement.To avoid the disadvantages just cited, the present invention, in addition to that it obeys what is described in the first paragraph of this description is remarkable in that the blocker carries first and second pallets of rest arranged to cooperate respectively with the first and second wheels, the blocker having a rod whose end cooperates with the plate pin, the axis that has the rod cutting at the same time the axis of the pivot of the plate and the axis of the pivot blocker when the first and second wheels are at rest on the first and second pallets of rest, said blocker still having means for reengagement of the first and second pallets of rest respectively in the first and second escape wheels.

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

  • la figure 1 est une vue en plan d'un échappement à double roue selon l'art antérieur,
  • la figure 2 est une vue en plan de l'échappement à double roue selon un premier mode d'exécution de l'invention où est illustré le début du dégagement de l'une des roues,
  • les figures 3 à 14 sont des vues en plan expliquant les phases de fonctionnement de l'échappement selon le premier mode d'exécution de l'invention, les phases couvrant une oscillation complète du plateau, et
  • la figure 15 est une vue en plan de l'échappement à double roue selon un second mode d'exécution de l'invention.
The invention will now be explained in detail below by two embodiments given by way of non-limiting examples, these embodiments being illustrated by the appended drawings in which:
  • the figure 1 is a plan view of a double wheel escapement according to the prior art,
  • the figure 2 is a plan view of the double-wheeled escapement according to a first embodiment of the invention, showing the beginning of the disengagement of one of the wheels,
  • the Figures 3 to 14 are plan views explaining the operating phases of the escapement according to the first embodiment of the invention, the phases covering a complete oscillation of the plateau, and
  • the figure 15 is a plan view of the double-wheeled escapement according to a second embodiment of the invention.

La figure 2 est une vue en plan du mécanisme de l'échappement à deux roues selon un premier mode d'exécution de l'invention. Cet échappement comporte des première et seconde roues d'échappement 1 et 2 entraînées chacune par des rouages et barillets indépendants. Quand elle est libre, la roue 1 tourne dans le sens horaire alors que la roue 2 tourne dans le sens antihoraire. La figure 2 montre un plateau 4 articulé sur un pivot 3. Le plateau 4 est associé à un balancier spiral non représenté. L'axe de rotation du pivot 3 se trouve situé sensiblement à égales distances des axes de rotation 5 et 6 des première et seconde roues 1 et 2. Le plateau 4 porte une cheville 7 arrangée pour coopérer avec un bloqueur 8, ce bloqueur étant articulé sur un pivot 9. Le plateau 4 porte encore des première et seconde palettes d'impulsion 10 et 11, les palettes étant arrangées pour coopérer respectivement avec les première et seconde roues 1 et 2. L'invention se distingue de l'art antérieur en ce que le bloqueur 8 porte des première et seconde palettes de repos (et non trois) 12 et 13 arrangées pour coopérer respectivement avec les première et seconde roues d'échappement 1 et 2. Le bloqueur 8 présente une baguette 14 dont l'extrémité 15 coopère avec la cheville 7 du plateau 4. La baguette 14 présente un axe 17 qui coupe à la fois l'axe du pivot 3 du plateau 4 et l'axe du pivot 9 du bloqueur quand les première et seconde roues 1 et 2 sont au repos sur les première et seconde palettes de repos 12 et 13, le bloqueur présentant dès lors un seul état d'équilibre stable dit monostable, quand les roues sont au repos. Enfin la figure 2 montre encore que le bloqueur 8 présente des moyens de réengagement 16 des première et seconde palettes de repos 12 et 13 dans, respectivement, les première et seconde roues d'échappement 1 et 2.The figure 2 is a plan view of the mechanism of the two-wheeled escapement according to a first embodiment of the invention. This exhaust comprises first and second escape wheels 1 and 2 each driven by gear wheels and independent barrels. When free, wheel 1 rotates clockwise while wheel 2 turns counterclockwise. The figure 2 shows a plate 4 articulated on a pivot 3. The plate 4 is associated with a spiral balance not shown. The axis of rotation of the pivot 3 is located substantially equal distances from the axes of rotation 5 and 6 of the first and second wheels 1 and 2. The plate 4 carries a pin 7 arranged to cooperate with a blocker 8, the blocker being hinged on a pivot 9. The plate 4 still carries first and second impulse pallets 10 and 11, the pallets being arranged to cooperate respectively with the first and second wheels 1 and 2. The invention is distinguished from the prior art by that the blocker 8 carries first and second rest pallets (and not three) 12 and 13 arranged to cooperate respectively with the first and second escape wheels 1 and 2. The blocker 8 has a rod 14 whose end 15 cooperates with the peg 7 of the plate 4. The rod 14 has an axis 17 which cuts at the same time the axis of the pivot 3 of the plate 4 and the axis of the pivot 9 of the jammer when the first and second wheels 1 and 2 are at rest on the first and second pallets of rest 12 and 13, the blocker thus having a single state of stable equilibrium said monostable when the wheels are at rest. Finally, figure 2 shows again that the blocker 8 has means 16 for reengaging the first and second pallets of rest 12 and 13 in, respectively, the first and second escape wheels 1 and 2.

Pour assurer une bonne interception des roues 1 et 2 par les palettes de repos 12 et 13, la figure 2 montre encore que l'échappement de l'invention est pourvu de moyens de réengagement 16 desdites palettes entre les dents desdites roues. Ces moyens sont des ailettes 30 et 31 disposées de part et d'autre de la baguette 14 du bloqueur 8, ces ailettes coopérant respectivement avec les première et seconde roues d'échappement 1 et 2. On expliquera plus loin le rôle joué par ces moyens de dégagement.To ensure good interception of the wheels 1 and 2 by the pallets of rest 12 and 13, the figure 2 shows again that the exhaust of the invention is provided with means 16 for reengaging said vanes between the teeth of said wheels. These means are fins 30 and 31 disposed on either side of the rod 14 of the blocker 8, these fins cooperating respectively with the first and second escape wheels 1 and 2. The role played by these means will be explained later. clearance.

La figure 2 montre aussi que les palettes de repos 12 et 13 sont exécutées de façon spéciale, cette exécution étant motivée par des raisons de fonctionnement qui seront expliquées plus loin. En effet, la première palette de repos 12 présente des première et seconde plaquettes 20 et 22 qui sont disposées l'une à côté de l'autre, la première plaquette 20 présentant un premier plan de repos 24 et la seconde plaquette 22 présentant un second plan de repos 26. Les plans de repos 24 et 26 sont inclinés l'un par rapport à l'autre pour former une ligne de repos 28. Il en est de même pour la seconde palette de repos 13 qui présente des première et seconde plaquettes 21 et 23 présentant respectivement des premier et second plans de repos 25 et 27 inclinés l'un par rapport à l'autre pour former une ligne de repos 29. D'autres façons de réaliser ces palettes de repos ou moyens de blocage sont possibles et décrites en détail dans le document EP-1'708'047-A .The figure 2 also shows that the pallets of rest 12 and 13 are executed in a special way, this execution being motivated by reasons of operation that will be explained later. Indeed, the first pallet of rest 12 has first and second plates 20 and 22 which are arranged next to each other, the first plate 20 having a first plane of rest 24 and the second plate 22 having a second plan of rest 26. The rest planes 24 and 26 are inclined relative to each other to form a rest line 28. It is the same for the second pallet rest 13 which has first and second pads 21 and 23 respectively having first and second planes of rest 25 and 27 inclined with respect to each other to form a rest line 29. Other ways of making these pallets of rest or locking means are possible and described in detail in the document EP-A-1'708'047 .

Une oscillation complète du plateau 4 est illustrée aux figures 3 à 14. On va en analyser maintenant les différentes phases de fonctionnement.A complete oscillation of the plate 4 is illustrated at Figures 3 to 14 . We will now analyze the different phases of operation.

En figure 3, le plateau 4 tourne dans le sens de la flèche 60. Les roues 1 et 2 sont au repos sur les palettes 12 et 13, respectivement par leurs dents 61 et 62 bloquées sur les lignes de repos 28 et 29. La cheville 7 entre en contact avec l'extrémité 15 de la baguette 14 du bloqueur 8. Ce bloqueur est centré par rapport aux roues, c'est-à-dire que l'axe 17 de sa baguette 14 coupe les axes des pivots 3 et 9 du plateau et du bloqueur respectivement, comme cela a déjà été dit à propos de la figure 2. C'est le début du dégagement de la roue 1.In figure 3 , the plate 4 rotates in the direction of the arrow 60. The wheels 1 and 2 are at rest on the pallets 12 and 13, respectively by their teeth 61 and 62 locked on the lines of rest 28 and 29. The pin 7 enters into contact with the end 15 of the strip 14 of the blocker 8. This blocker is centered with respect to the wheels, that is to say that the axis 17 of its strip 14 intersects the axes of the pivots 3 and 9 of the plate and the blocker respectively, as has already been said about the figure 2 . This is the beginning of the release of wheel 1.

En figure 4, le plateau 4 a poursuivi sa course dans le sens de la flèche 60. La cheville 7 a entraîné le bloqueur 8 dans le sens de la flèche 63 obligeant la dent 61 de la roue 1 à escalader le plan 24 de la plaquette 20 composant la palette 12. La roue 1 subit un léger mouvement de recul provoqué par cette escalade indiqué par la flèche 64. Pendant la même opération, la dent 62 de la roue 2 a escaladé le plan 27 de la plaquette 23 composant la palette 13 obligeant la roue 2 à un léger recul indiqué par la flèche 65. C'est la fin du dégagement et le début de la libération de la roue 1.In figure 4 , the plate 4 has continued its course in the direction of the arrow 60. The pin 7 has driven the blocker 8 in the direction of the arrow 63 forcing the tooth 61 of the wheel 1 to climb the plane 24 of the wafer 20 composing the pallet 12. The wheel 1 undergoes a slight recoil movement caused by this escalation indicated by the arrow 64. During the same operation, the tooth 62 of the wheel 2 has climbed the plane 27 of the plate 23 forming the pallet 13 forcing the wheel 2 to a slight decline indicated by the arrow 65. It is the end of the release and the beginning of the release of the wheel 1.

Comme on le voit en figure 5, la roue libérée 1 entraînée par le rouage de la pièce d'horlogerie, a tourné dans le sens de la flèche 66 et sa dent 67 est entrée en contact de la palette d'impulsion 10. C'est la phase du début d'impulsion.As we see in figure 5 the released wheel 1 driven by the timepiece wheel rotated in the direction of the arrow 66 and its tooth 67 came into contact with the pulse pallet 10. This is the beginning phase of impulse.

En figure 6, la dent 67 de la roue 1 est en fin d'impulsion et a relancé le plateau 4 dans le même sens (flèche 60) qu'il avait jusqu'ici. La dent 67 de la roue 1 est en passe de quitter la palette d'impulsion 10. Auparavant, l'extrémité 15 de la baguette 14 a longé la surface arquée 69 de la cheville 7, ce qui a maintenu le même angle d'inclinaison pour la baguette 14. Dès que l'extrémité 15 a quitté la surface arquée 69, la dent 68 de la roue 1 entre en contact avec l'ailette 30 solidaire de la baguette 14. La forme de cette ailette est arrangée pour faire pivoter le bloqueur 8 dans le sens de la flèche 70 quand la dent 68 de la roue 1 tourne dans le sens de la flèche 66. La rotation du bloqueur provoque le réengagement de la palette 12 dans la roue 1, cette palette coupant la trajectoire de la dent 71 de cette même roue. La rotation du bloqueur 8 a fait descendre légèrement la dent 62 de la roue 2 le long du plan 27 de la plaquette 23 composant la palette 13. Cette descente provoque une légère rotation de la roue 2 dans le sens de la flèche 72.In figure 6 , the tooth 67 of the wheel 1 is at the end of the impulse and has restarted the plate 4 in the same direction (arrow 60) it had so far. The tooth 67 of the wheel 1 is about to leave the pulse pallet 10. Previously, the end 15 of the rod 14 has passed the arcuate surface 69 of the ankle 7, which has maintained the same angle of inclination. for the rod 14. As soon as the end 15 has left the arcuate surface 69, the tooth 68 of the wheel 1 comes into contact with the fin 30 integral with the rod 14. The shape of this fin is arranged to rotate the rod blocker 8 in the direction of the arrow 70 when the tooth 68 of the wheel 1 rotates in the direction of the arrow 66. The rotation of the blocker causes the reengagement of the pallet 12 in the wheel 1, this pallet cutting the trajectory of the tooth 71 of this same wheel. The rotation of the blocker 8 has slightly lowered the tooth 62 of the wheel 2 along the plane 27 of the plate 23 forming the pallet 13. This descent causes a slight rotation of the wheel 2 in the direction of the arrow 72.

La figure 7 montre la prise de repos de la roue 1 sur la palette 12. Le plateau 4 a continué sa course dans le sens de la flèche 60 pour occuper la place montrée sur le dessin. La dent 71 de la roue 1 entraînée selon la flèche 66 est tombée sur le plan 24 de la plaquette 20 composant la palette 12. La roue 1 est bloquée. Dès cet instant la force de rotation de la roue 1 fait descendre sa dent 71 le long du plan 24. De même, la force de rotation de la roue 2 fait descendre sa dent 62 le long du plan 27 de la plaquette 23 composant la palette 13. C'est ce qui est appelé le tirage dans le langage horloger. Le bloqueur 8 continue donc à tourner dans le sens de la flèche 70.The figure 7 shows the rest of the wheel 1 on the pallet 12. The plate 4 continued its course in the direction of the arrow 60 to occupy the place shown in the drawing. The tooth 71 of the wheel 1 driven according to the arrow 66 has fallen on the plane 24 of the wafer 20 forming the pallet 12. The wheel 1 is blocked. From this moment, the rotational force of the wheel 1 causes its tooth 71 to descend along the plane 24. Similarly, the rotational force of the wheel 2 causes its tooth 62 to descend along the plane 27 of the wafer 23 forming the pallet 13. This is what is called the draw in the watchmaking language. The blocker 8 continues to rotate in the direction of the arrow 70.

La rotation du bloqueur 8 se termine au moment où les dents 62 et 71 prennent appui respectivement sur les lignes de repos 28 et 29 des roues 1 et 2 par effet du tirage exercé par ces mêmes roues. C'est ce qu'on voit en figure 8 qui montre le repos total des roues 1 et 2 sur les palettes de repos 12 et 13. A ce moment, le bloqueur 8 occupe une position centrée par rapport aux deux roues 1 et 2. C'est l'état monostable évoqué plus haut dans lequel l'axe 17 de la baguette 14 coupe à la fois l'axe du pivot 3 du plateau 4 et l'axe du pivot 9 du bloqueur 8. A partir de ce moment, le plateau 4 parcourt son arc supplémentaire dans le sens de la même flèche 60 pour rebrousser chemin et tourner selon le sens de la flèche 73.The rotation of the blocker 8 ends when the teeth 62 and 71 respectively bear on the lines of rest 28 and 29 of the wheels 1 and 2 by the effect of the pull exerted by these same wheels. This is seen in figure 8 which shows the total rest of the wheels 1 and 2 on the pallets of rest 12 and 13. At this moment, the blocker 8 occupies a position centered with respect to the two wheels 1 and 2. This is the monostable state mentioned above in which axis 17 of the rod 14 intersects both the axis of the pivot 3 of the plate 4 and the axis of the pivot 9 of the blocker 8. From this moment, the plate 4 traverses its additional arc in the direction of the same arrow 60 to turn back and turn in the direction of the arrow 73.

Tout ce qui a été dit jusqu'à maintenant va dès lors se répéter, mais dans le sens inverse. Comme on le voit en figure 9 le plateau 4 tourne dans le sens de la flèche 73. Les roues 1 et 2 sont au repos sur les palettes 12 et 13, respectivement par leurs dents 71 et 62 bloquées sur leurs ligues de repos 28 et 29. La cheville 7 entre en contact avec l'extrémité 15 de la baguette 14 du bloqueur 8. C'est le début du dégagement de la roue 2.All that has been said so far will then be repeated, but in the opposite direction. As we see in figure 9 the plate 4 rotates in the direction of the arrow 73. The wheels 1 and 2 are at rest on the pallets 12 and 13, respectively by their teeth 71 and 62 locked on their rest leagues 28 and 29. The pin 7 comes into contact with the end 15 of the rod 14 of the blocker 8. This is the beginning of the disengagement of the wheel 2.

En figure 10, le plateau a poursuivi sa course dans le sens de la flèche 73. La cheville 7 a entraîné le bloqueur 8 dans le sens de la flèche 70 obligeant la dent 62 de la roue 2 à escalader le plan 25 de la plaquette 21 composant la palette 13. La roue 2 subit alors un léger mouvement de recul provoqué par cette escalade indiquée par la flèche 65. Pendant la même opération, la dent 71 de la roue 1 a escaladé le plan 26 de la plaquette 22 composant la palette 12 obligeant la roue 1 à un léger recul indiqué par la flèche 64. C'est la fin du dégagement et le début de la libération de la roue 2.In figure 10 , the plate has continued its course in the direction of the arrow 73. The pin 7 has driven the blocker 8 in the direction of the arrow 70 forcing the tooth 62 of the wheel 2 to climb the plane 25 of the plate 21 forming the pallet 13. The wheel 2 then undergoes a slight recoil movement caused by this escalation indicated by the arrow 65. During the same operation, the tooth 71 of the wheel 1 has climbed the plane 26 of the plate 22 forming the pallet 12 forcing the wheel 1 to a slight recoil indicated by the arrow 64. It is the end of the release and the beginning of the release of the wheel 2.

Comme le montre la figure 11, la roue libérée 2 entraînée par le rouage de la pièce d'horlogerie a tourné dans le sens de la flèche 74 et sa dent 75 est entrée en contact de la palette d'impulsion 11. C'est la phase du début d'impulsion.As shown in figure 11 , the released wheel 2 driven by the wheel of the timepiece turned in the direction of the arrow 74 and its tooth 75 has come into contact with the pulse pallet 11. This is the phase of the pulse start.

En figure 12 la dent 75 de la roue 2 est en fin d'impulsion et a relancé le plateau 4 dans le même sens (flèche 73) qu'il avait jusqu'ici. La dent 75 de la roue 2 est en train de quitter la palette d'impulsion 11. Auparavant, l'extrémité 15 de la baguette 14 a longé la surface arquée 69 de la cheville 7, ce qui a maintenu le même angle d'inclinaison pour la baguette 14. Dès que l'extrémité 15 a quitté la surface arquée 69, la dent 76 de la roue 2 entre en contact avec l'ailette 31 solidaire de la baguette 14. La forme de cette ailette est arrangée pour faire pivoter le bloqueur dans le sens de la flèche 63 quand la dent 76 de la roue 2 tourne dans le sens de la flèche 74. La rotation du bloqueur provoque le réengagement de la palette 13 dans la roue 2, cette palette coupant la trajectoire de la dent 77 de cette même roue. La rotation du bloqueur 8 a fait légèrement descendre la dent 71 de la roue 1 le long du plan 26 de la plaquette 22 composant la palette 12. Cette descente provoque une légère rotation de la roue 1 dans le sens de la flèche 78.In figure 12 the tooth 75 of the wheel 2 is at the end of the pulse and has restarted the plate 4 in the same direction (arrow 73) that it had so far. The tooth 75 of the wheel 2 is leaving the impulse pallet 11. Previously, the end 15 of the rod 14 has skirted the arcuate surface 69 of the ankle 7, which has maintained the same angle of inclination for the rod 14. As soon as the end 15 has left the arcuate surface 69, the tooth 76 of the wheel 2 comes into contact with the fin 31 integral with the rod 14. The shape of this fin is arranged to rotate the blocker in the direction of the arrow 63 when the tooth 76 of the wheel 2 rotates in the direction of the arrow 74. The rotation of the blocker causes the reengagement of the pallet 13 in the wheel 2, this pallet cutting the trajectory of the tooth 77 of this same wheel. The rotation of the blocker 8 has slightly lowered the tooth 71 of the wheel 1 along the plane 26 of the wafer 22 forming the pallet 12. This descent causes a slight rotation of the wheel 1 in the direction of the arrow 78.

La figure 13 montre la prise de repos de la roue 2 sur la palette 13. Le plateau 4 a continué sa course dans le sens de la flèche 73 pour occuper la place montrée sur le dessin. La dent 77 de la roue 2 entraînée selon la flèche 74 est tombée sur le plan 25 de la plaquette 21 composant la palette 13. La roue 2 est bloquée. Dès cet instant, la force de rotation de la roue 2 fait descendre sa dent 77 le long du plan 25. De même, la force de rotation de la roue 1 fait descendre sa dent 71 le long du plan 26 de la plaquette 22 composant la palette 12. C'est le tirage déjà évoqué plus haut. Le bloqueur 8 continue donc à tourner dans le sens de la flèche 63.The figure 13 shows the rest of the wheel 2 on the pallet 13. The tray 4 continued its course in the direction of the arrow 73 to occupy the place shown in the drawing. The tooth 77 of the wheel 2 driven according to the arrow 74 fell on the plane 25 of the plate 21 constituting the pallet 13. The wheel 2 is blocked. From this moment, the rotational force of the wheel 2 lowers its tooth 77 along the plane 25. Likewise, the rotational force of the wheel 1 causes its tooth 71 to descend along the plane 26 of the wafer 22 forming the palette 12. This is the draw already mentioned above. The blocker 8 continues to rotate in the direction of the arrow 63.

La rotation du bloqueur 8 se termine au moment où les dents 71 et 77 prennent appui respectivement sur les lignes de repos 28 et 29 des roues 1 et 2 par effet du tirage exercé par ces mêmes roues. C'est ce qui est apparent à la figure 14 qui montre le repos total des roues 1 et 2 sur les palettes de repos 12 et 13. A ce moment, le bloqueur 8 occupe à nouveau une position centrée par rapport aux deux roues 1 et 2. C'est à nouveau l'état monostable évoqué ci-dessus dans lequel l'axe 17 de la baguette 14 coupe à la fois l'axe du pivot 3 du plateau 4 et l'axe du pivot 9 du bloqueur 8. A partir de ce moment, le plateau 4 parcourt son arc supplémentaire (flèche 73) pour rebrousser chemin et tourner alors dans le sens de la flèche 60. Une oscillation complète du plateau est ainsi terminée et l'on se retrouve dans la situation montrée en figure 3.The rotation of the blocker 8 ends when the teeth 71 and 77 bear respectively on the lines of rest 28 and 29 of the wheels 1 and 2 by the effect of the pull exerted by these same wheels. This is apparent to the figure 14 which shows the total rest of the wheels 1 and 2 on the resting pallets 12 and 13. At this moment, the blocker 8 again occupies a position centered with respect to the two wheels 1 and 2. This is again the monostable state mentioned above in which the axis 17 of the rod 14 intersects both the axis of the pivot 3 of the plate 4 and the axis of the pivot 9 of the blocker 8. From this moment, the plate 4 traverses its supplementary arc (arrow 73) to turn back and then turn in the direction of the arrow 60. A complete oscillation of the plateau is thus completed and one finds oneself in the situation shown in figure 3 .

Les explications qui ont été données jusqu'ici sont relatives à un premier mode d'exécution de l'invention. Dans ce premier mode d'exécution, les moyens de réengagement 16 des palettes de repos dans la denture des roues correspondantes sont des ailettes 30 et 31 disposées de part et d'autre de la baguette 14 du bloqueur 8.The explanations that have been given so far relate to a first embodiment of the invention. In this first embodiment, the reengaging means 16 of the pallets of rest in the toothing of the corresponding wheels are fins 30 and 31 disposed on either side of the rod 14 of the blocker 8.

La figure 15 présente un second mode d'exécution de l'invention. Ici les moyens de réengagement 16 ne sont plus des ailettes décrites plus haut mais un ressort agissant sur le bloqueur 8. Plus particulièrement, le ressort en question est un ressort à lame 80 dont une extrémité 81 est fixée au bâti qui comporte la pièce d'horlogerie et dont l'autre extrémité 82 est arrangée pour exercer une force égale sur les première et seconde palettes de repos 12 et 13 quand l'axe 17 de la baguette 14 du bloqueur 8 coupe à la fois l'axe du pivot 3 du plateau 4 et l'axe du pivot 9 du bloqueur 8, en d'autres termes quand le bloqueur occupe une position centrée par rapport aux deux roues d'échappement.The figure 15 presents a second embodiment of the invention. Here the reengagement means 16 are no longer fins described above but a spring acting on the blocker 8. More particularly, the spring in question is a leaf spring 80, one end 81 is fixed to the frame which comprises the piece of the other end 82 is arranged to exert an equal force on the first and second pallets of rest 12 and 13 when the axis 17 of the rod 14 of the blocker 8 intersects at the same time the pivot axis 3 of the plate 4 and the axis of the pivot 9 of the blocker 8, in other words when the blocker occupies a centered position with respect to the two escape wheels.

Dans le cas qui vient d'être exposé, on comprendra que si la force exercée par le ressort 80 sur les palettes 12 et 13 est plus grande que la force de tirage exercée par chacune des roues d'échappement 1 et 2 sur ces mêmes palettes, il n'est plus nécessaire de réaliser lesdites palettes en deux plaquettes disposées l'une à côté de l'autre, comme c'était le cas du premier mode d'exécutions décrit plus haut. En effet, la pointe de la dent s'arrêtera naturellement sur une ligne de repos situé à l'intérieur du plan de repos unique présenté par la palette comme cela est apparent sur la figure 15. Ici les palettes 12 et 13 sont des palettes monoblocs 83 et 84.In the case just described, it will be understood that if the force exerted by the spring 80 on the pallets 12 and 13 is greater than the pulling force exerted by each of the escape wheels 1 and 2 on these same pallets. it is no longer necessary to make said pallets in two plates arranged next to each other, as was the case of the first embodiment described above. Indeed, the tip of the tooth will naturally stop on a line of rest located inside the plane of unique rest presented by the pallet as is apparent on the figure 15 . Here the pallets 12 and 13 are one-piece pallets 83 and 84.

Le ressort à lame 80 peut être remplacé par d'autres modes d'exécution. Ce pourrait être, par exemple, un ressort spiral dont une extrémité est fixée au bâti et dont l'autre extrémité est fixée au pivot 9 du bloqueur 8. Cette solution, non illustrée ici pourrait être remplacée par deux lames à ressort disposées de part et d'autre de la baguette 14 ou par une seule lame fixée d'une part sur le bloqueur à sa première extrémité et d'autre part retenue à sa seconde extrémité entre deux goupilles fixé sur le bâti de la pièce d'horlogerie.The leaf spring 80 may be replaced by other embodiments. It could be, for example, a spiral spring whose end is fixed to the frame and whose other end is fixed to the pivot 9 of the blocker 8. This solution, not illustrated here could be replaced by two spring blades arranged on the side and else of the rod 14 or by a single blade fixed on the one hand on the blocker at its first end and secondly retained at its second end between two pins fixed on the frame of the timepiece.

On indiquera pour terminer que l'échappement à double roue indépendante permet un double affichage présentant chacun l'indication de fuseaux horaires différents.Finally, it should be noted that the independent double-wheel escapement allows for a dual display, each indicating different time zones.

Claims (6)

1. Echappement à détente pour pièce d'horlogerie comportant des première (1) et seconde (2) roues d'échappement entraînées chacune par des rouages et barillets indépendants et un balancier sur le pivot (3) duquel est fixé un plateau (4), l'axe de rotation dudit pivot se trouvant situé sensiblement à égales distances des axes de rotation (5, 6) des première et seconde roues, ledit plateau (4) portant une cheville (7) arrangée pour coopérer avec un bloqueur (8) articulé sur un pivot (9), et portant des première (10) et seconde (11) palettes d'impulsions arrangées pour coopérer respectivement avec les première (1) et seconde (2) roues, caractérisé en ce que le bloqueur (8) porte des première (12) et seconde (13) palettes de repos arrangées pour coopérer respectivement avec les première (1) et seconde (2) roues, ce bloqueur (8) présentant une baguette (14) dont l'extrémité (15) coopère avec la cheville (7) du plateau (4), l'axe (17) que présente la baguette (14) coupant à la fois l'axe du pivot (3) du plateau (4) et l'axe du pivot (9) du bloqueur (8) quand les première et seconde roues sont au repos sur les première (12) et seconde (13) palettes de repos, ledit bloqueur (8) présentant encore des moyens de réengagement (16) des première (12) et seconde (13) palettes de repos respectivement dans les première et seconde roues d'échappement. 1. Expansion escapement for a timepiece comprising first (1) and second (2) escape wheels each driven by independent gear wheels and barrels and a rocker arm on the pivot (3) of which is fixed a plate (4) , the axis of rotation of said pivot being located substantially equal distances from the axes of rotation (5, 6) of the first and second wheels, said plate (4) carrying a pin (7) arranged to cooperate with a blocker (8) articulated on a pivot (9), and carrying first (10) and second (11) paddles of pulses arranged to cooperate respectively with the first (1) and second (2) wheels, characterized in that the blocker (8) door of first (12) and second (13) pallets of rest arranged to cooperate respectively with the first (1) and second (2) wheels, this blocker (8) having a rod (14) whose end (15) cooperates with the peg (7) of the plate (4), the axis (17) that the rod ( 14) cutting both the axis of the pivot (3) of the plate (4) and the axis of the pivot (9) of the blocker (8) when the first and second wheels are at rest on the first (12) and second (13) pallets of rest, said blocker (8) further having means for reengagement (16) of the first (12) and second (13) pallets of rest respectively in the first and second escape wheels. 2. Echappement à détente selon la revendication 1, caractérisé en ce que les moyens de réengagement (16) sont des ailettes (30, 31) disposées de part et d'autre de la baguette (14) du bloqueur (8) pour coopérer respectivement avec les première (1) et seconde (2) roues d'échappement. 2. Expansion escapement according to claim 1, characterized in that the reengaging means (16) are fins (30, 31) disposed on either side of the rod (14) of the blocker (8) for cooperating respectively with the first (1) and second (2) exhaust wheels. 3. Echappement à détente selon la revendication 2, caractérisé en ce que les première (12) et seconde (13) palettes au repos présentent chacune des première (20, 21) et seconde (22, 23) plaquettes disposées l'une à côté de l'autre et présentant respectivement des premier (24, 25) et second (26, 27) plans de repos inclinés l'un par rapport à l'autre pour former une ligne de repos (28, 29). 3. Expansion escapement according to claim 2, characterized in that the first (12) and second (13) pallets at rest each have first (20, 21) and second (22, 23) plates arranged next to one another and having respectively first (24, 25) and second (26, 27) resting planes inclined with respect to each other to form a rest line (28, 29) . 4. Echappement à détente selon la revendication 1, caractérisée en ce que les moyens de réengagement (16) consistent en un ressort agissant sur le bloqueur (8). 4. Expansion escapement according to claim 1, characterized in that the reengaging means (16) consist of a spring acting on the blocker (8). 5. Echappement à détente selon la revendication 4, caractérisé en ce que ledit ressort et un ressort à lame (80) dont une extrémité (81) est fixée au bâti que comporte la pièce d'horlogerie et dont l'autre extrémité (82) est arrangée pour exercer une force égale sur les première (12) et seconde (13) palettes de repos quand l'axe (17) de la baguette (14) du bloqueur (8) coupe à la fois l'axe du pivot (3) du plateau (4) et l'axe du pivot (9) du bloqueur (8). 5. Expansion escapement according to claim 4, characterized in that said spring and a leaf spring (80), one end (81) is fixed to the frame that includes the timepiece and the other end (82). is arranged to exert an equal force on the first (12) and second (13) pallets of rest when the axis (17) of the rod (14) of the blocker (8) cuts at the same time the pivot axis (3) ) of the plate (4) and the axis of the pivot (9) of the blocker (8). 5. Echappement à détente selon la revendication 4 ou la revendication 5, caractérisé en ce que les première (12) et seconde (13) palettes de repos présentent chacune une plaquette (83, 84) monobloc. 5. Expansion exhaust according to claim 4 or claim 5, characterized in that the first (12) and second (13) pallets of rest each have a plate (83, 84) monobloc.
EP07106377A 2007-04-18 2007-04-18 Escapement comprising two escape wheels Active EP1983389B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE602007003445T DE602007003445D1 (en) 2007-04-18 2007-04-18 Inhibition, which includes two escapement wheels
EP07106377A EP1983389B1 (en) 2007-04-18 2007-04-18 Escapement comprising two escape wheels
AT07106377T ATE449985T1 (en) 2007-04-18 2007-04-18 ESCAPEMENT COMPRISING TWO ESCAPE WHEELS
JP2008106168A JP5153430B2 (en) 2007-04-18 2008-04-15 An escapement with two escape wheels
US12/105,644 US7607822B2 (en) 2007-04-18 2008-04-18 Escapement including two escape wheels
CN2008100929578A CN101329548B (en) 2007-04-18 2008-04-18 Escapement comprising two escape wheels
HK09105363.9A HK1127968A1 (en) 2007-04-18 2009-06-16 Escapement including two escape wheels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07106377A EP1983389B1 (en) 2007-04-18 2007-04-18 Escapement comprising two escape wheels

Publications (2)

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EP1983389A1 true EP1983389A1 (en) 2008-10-22
EP1983389B1 EP1983389B1 (en) 2009-11-25

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EP07106377A Active EP1983389B1 (en) 2007-04-18 2007-04-18 Escapement comprising two escape wheels

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EP2413202A1 (en) * 2010-07-30 2012-02-01 ETA SA Manufacture Horlogère Suisse Method for improving the wear and impact resistance of an horological component. Anchor for clock movement with wear and impact resistance
EP2487546A1 (en) 2011-02-11 2012-08-15 Montres Journe S.A. High-performance bi-axial escapement, or HPBE
WO2016001740A3 (en) * 2014-07-03 2016-05-19 Preciflex Sa Clockwork mechanisms for double accumulation and power transmission dedicated mono-regulated movement

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EP2199875B1 (en) * 2008-12-16 2014-09-24 Rolex Sa Detent escapement
EP2859411B1 (en) * 2012-06-07 2016-10-12 Detra SA Escapement device for timepiece
US9746829B2 (en) * 2013-12-23 2017-08-29 Nivarox-Far S.A. Contactless cylinder escapement mechanism for timepieces
JP6206877B2 (en) * 2014-03-06 2017-10-04 セイコーインスツル株式会社 Escapement, watch movement and watch
EP3273308B1 (en) * 2016-07-18 2019-06-12 Sowind S.A. Exhaust mechanism
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
EP3462251B1 (en) * 2017-09-29 2020-06-10 Montres Breguet S.A. Time-setting mechanism for a clock movement
EP4053641A1 (en) * 2021-03-02 2022-09-07 Montres Breguet S.A. Natural escapement for timepiece movement and timepiece movement comprising such an escapement

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
EP2413202A1 (en) * 2010-07-30 2012-02-01 ETA SA Manufacture Horlogère Suisse Method for improving the wear and impact resistance of an horological component. Anchor for clock movement with wear and impact resistance
US8540418B2 (en) 2010-07-30 2013-09-24 Eta Sa Manufacture Horlogere Suisse Wear and shock resistant escapement lever for a timepiece movement
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EP2487546A1 (en) 2011-02-11 2012-08-15 Montres Journe S.A. High-performance bi-axial escapement, or HPBE
US8562205B2 (en) 2011-02-11 2013-10-22 Montres Journe S.A. Bi-axial high-performance escapement, or BHPE (EBHP)
WO2016001740A3 (en) * 2014-07-03 2016-05-19 Preciflex Sa Clockwork mechanisms for double accumulation and power transmission dedicated mono-regulated movement

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CN101329548A (en) 2008-12-24
EP1983389B1 (en) 2009-11-25
HK1127968A1 (en) 2009-10-09
ATE449985T1 (en) 2009-12-15
DE602007003445D1 (en) 2010-01-07
JP5153430B2 (en) 2013-02-27
CN101329548B (en) 2011-04-20
US7607822B2 (en) 2009-10-27
JP2008268208A (en) 2008-11-06
US20080259737A1 (en) 2008-10-23

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