EP2947522A1 - Timepiece pallet for mechanical oscillator and timer-controlled timepiece trigger mechanism - Google Patents
Timepiece pallet for mechanical oscillator and timer-controlled timepiece trigger mechanism Download PDFInfo
- Publication number
- EP2947522A1 EP2947522A1 EP14169042.0A EP14169042A EP2947522A1 EP 2947522 A1 EP2947522 A1 EP 2947522A1 EP 14169042 A EP14169042 A EP 14169042A EP 2947522 A1 EP2947522 A1 EP 2947522A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lift
- anchor
- stop
- shaft
- arm
- 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.)
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/06—Free escapements
- G04B15/08—Lever escapements
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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
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
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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
- G04B21/00—Indicating the time by acoustic means
-
- 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
- G04B21/00—Indicating the time by acoustic means
- G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
- G04B21/027—Regular striking mechanisms giving the full hour, half hour or quarter hour with locking wheel
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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
- G04B21/00—Indicating the time by acoustic means
- G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
- G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
-
- 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
- G04B21/00—Indicating the time by acoustic means
- G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
- G04B21/10—Releasing or locking the regular stroke, e.g. for silence during the night
Definitions
- the present invention relates to the field of watchmaking. More specifically, it relates to a clock anchor for a mechanical oscillator and a timed clock triggering mechanism.
- Timed time triggering mechanisms are integrated with various devices to enable trigger times to be determined.
- such mechanisms are the basis of the operation of ringtones, in which successive strikes of one or more timbres indicate the time of sound.
- a timed timepiece trigger mechanism may comprise an escape wheel and a mechanical oscillator.
- An oscillating anchor of the mechanical oscillator has two lifts, which are alternately engaged with the toothing of the escape wheel. In this way, the regular oscillations of the clock anchor regulate the intermittent rotation of the escape wheel.
- Each lift receives the impact of a tooth of the escape wheel before temporarily stopping the escape wheel.
- the successive impacts of the escape wheel teeth on the lefts produce a knock that may be undesirable.
- this rattling parasitic sounds produced by the watch ring in the case where the timed clock triggering mechanism operates a mechanical watch ring, this rattling parasitic sounds produced by the watch ring.
- the invention is at least intended to reduce the noise that represents the rattling produced by an exhaust during its operation.
- this object is achieved thanks to a clock anchor for mechanical oscillator.
- This watch anchor comprises a shaft for mounting oscillatingly about a pivot axis, and first and second lifts provided to be alternately engaged with an escape wheel when the watch anchor oscillates around of its pivot axis.
- the at least one first lift is displaceable with respect to the shaft by absorbing energy, from an upstream waiting position to a downstream end stop position which is shifted from the upstream waiting position to downstream by considering the direction of progression of a tooth of the escape wheel before a stop of this tooth by the first lift.
- the clock anchor comprises a device for returning the first lift to its upstream waiting position.
- the first lift is adapted to be moved by the tooth it is stopping. An energy absorption takes place when the first lift is thus displaced, which dampens the stopping of the tooth. It follows a rattling significantly less sound, even imperceptible.
- the clock anchor defined above may incorporate one or more other advantageous features, alone or in combination, in particular from those defined below.
- the second lift is displaceable with respect to the shaft by means of energy absorption, from an upstream waiting position to a downstream end stop position which is shifted from this waiting upstream position to downstream by considering the direction of progression of a tooth of the escape wheel before a stop of this tooth by the second lift.
- the watch anchor comprises a device for returning the second lift to its upstream waiting position.
- the watch anchor comprises an arm defining the first lift.
- the watch anchor comprises a stopping stop of the arm downstream, relative to the shaft, as soon as the first lift is in its downstream end stop position.
- the stop is formed by said shaft.
- a simplification of the clock anchor can be obtained.
- the return device is more precisely an elastic return device.
- the arm has a fixed end relative to the shaft.
- the return device is then an elastic return device comprising an intermediate portion of the arm.
- This intermediate section is located between the fixed end and the first lift and is elastically deformable from a first configuration, in which the first lift is in its upstream waiting position, to a second configuration, in which the first lift is in its downstream end-stop position.
- the intermediate portion of the arm comprises an elastic bend.
- Such a bend allows the intermediate section to have the desired elasticity without being too wide or too thin.
- the clock anchor comprises two rigidly associated parts, which are an assembly piece carrying the shaft and an insert defining the arm.
- the watch anchor can easily have a simple and compact constitution.
- the stop is formed by an outer portion of a pin rigidly fixed in the assembly part.
- the watch anchor can easily have a simple and compact constitution.
- the assembly part is a mass of inertia of a mechanical oscillator.
- the mass of inertia also fulfills the part function now assembled all or part of the other parts of the watch anchor, which allows simplification.
- the watch anchor cooperates with the escape wheel so as to adjust an intermittent rotation of the escape wheel.
- the timed timepiece triggering mechanism is a watch bell comprising a bell, a percussion hammer of this stamp, and a device for repetitively actuating the hammer at a rate determined by the intermittent rotation of the wheel. 'exhaust.
- a timed clocking trigger mechanism is more precisely the mechanism of a watch mechanical bell.
- the invention is not limited to watch mechanical ringtones.
- the invention may be incorporated into an automaton mechanism to control the speed of the animation.
- the timed clocking mechanism shown in FIG. figure 1 comprises an escapement 1, in which a clock anchor 2 is associated with an escape wheel 3 so as to be able to regulate the intermittent rotation thereof.
- a pinion 4 secured to the escape wheel 3 is part of a gear train 5 which couples this escapement wheel 3 to a barrel 6 forming a mechanical energy storage device.
- the gear 5 comprises a wheel 7 meshing with the pinion 4, a pinion 8 integral with the wheel 7, and a wheel 9 meshing with the pinion 8.
- the gear train 5 also comprises a pinion 10 which is integral with the wheel 9 and which meshes with the peripheral toothing of a barrel drum 15 constituting the barrel 6.
- the barrel 6 comprises a barrel spring 16, one end of which is blocked by an adjusting ring 17.
- the other end of this barrel spring 16 is secured to a barrel shaft 18.
- a hook 19 retains the adjusting ring 17 in an angular position that can be chosen from several possible angular positions to adjust a preload or pre-arming of the mainspring 16.
- a ratchet 22 is part of a partially visible latch, intended to couple the barrel drum 15 to the barrel shaft 18 only when the barrel shaft 18 delivers the energy supplied by the barrel spring 16 and turn clockwise at the figure 1 .
- a winding that is to say an arming of the mainspring spring 16, takes place by means of a drive of the rack pinion 21 In the opposite way.
- the rack pinion 21 and the barrel shaft 18 are driven without in turn driving the barrel drum 15, which can then remain stationary, as well as the gear 5 and the exhaust 1.
- a pivotally mounted cocking and triggering lever is arranged to be actuable by each of the twelve teeth of the rake 20. It cooperates with an angled return lever 26, which is provided to move a rocking hammer 27 and the bring to a starting position, by arming a spring 28 for launching the hammer 27.
- the cocking and release lever 25, the return lever 26 and the rocking hammer 27 constitute a kinematic chain, at one end of which is the launching spring 28.
- a spring against 29 is provided to act on the other end of this kinematic chain.
- the launch spring 28 and the counter spring 29 alternately recall, in one direction and then in the other, the cocking and release lever 25, the return lever 26 and the rocking hammer 27 in contact with each other .
- the barrel spring 16 After being armed and released, the barrel spring 16 provides the energy driving the entire bell mechanism of the figure 1 , on which the arrows indicate the directions of the movements then present.
- the average speeds within the gear train 5 are regulated by the escapement 1.
- At least one tooth of the rake 20 passes in front of the cocking and release lever 25 and actuates it.
- the tooth rotates this trigger and actuation lever 25 in the direction of an arming of the launching spring 28.
- the release and actuating lever 25 is then detached from the tooth continuing its advance, the launching spring 28 throws the hammer 27 to a stamp 30, whose striking by the hammer 27 leads to the emission of a sound.
- the importance of winding the barrel 6 determines the number of teeth successively actuating the cocking and release lever 25.
- the duration between two successive strikes of the stamp 30 by the hammer 27 depends on a speed that is set by the exhaust 1, since this is the average rotation speed of the rake 20.
- the exhaust 1, the gear 5, the barrel 6 and the rake 20 together form a mechanism which establishes a time delay between two successive strikes of the stamp 30 and which actuates the sub-mechanism operating these successive strikes.
- Exhaust 1 is shown alone at figure 3 , where it can be seen that the clock anchor 2 results from the assembly of an insert 40, a shaft 41 and a pin 42 to an assembly part which is a mass of inertia 43.
- the mass of inertia 43 is constitutive of the anchor 2 and this anchor 2 alone forms the mechanical oscillator. It may, however, be otherwise and, within the mechanical oscillator, the anchor and the mass of inertia may be two separate members coupled without departing from the scope of the invention.
- the anchor 2 is mounted so as to be pivotable about a pivot axis X 1 -X 1 'parallel to the axis of rotation X 2 -X' 2 of the wheel of exhaust 3.
- the lifts are hooking beaks, also called palettes of the anchor in the field of watchmaking.
- the insert 40 defines the upstream lift 44 and the downstream lift 45 of the anchor 2.
- the terms "before”, “upstream” and “downstream”, and similar terms refer to the direction of progression of a tooth of the escape wheel at the level of the lifts.
- the insert 40 comprises a rigid body 46, which an assembly pin 47 rigidly assembles with the mass of inertia 43.
- the pin 42 participates in the rigid assembly of the rigid body 46 to the mass of inertia 43 by preventing any possibility of pivoting thereof between them, around the assembly pin 47.
- the insert 40 also comprises two resiliently flexible arms, namely an upstream arm 48 and a downstream arm 49, each of which has a fixed end 50 or 51 connected to the rigid body 46.
- a section of the upstream arm 48 forms a hooking finger 52 ending in the lift 44.
- An intermediate section 53 of the arm 48 connects the fixed end 50 and the hooking finger 52 to one another.
- This intermediate section 53 has the shape of a blade which is elastically flexible so that the hooking finger 52 is movable to a stop constituted by an outer portion of the pin 42.
- An elastic bend 54 reduces the stiffness in flexion intermediate section 53.
- a section of the downstream arm 49 forms a hooking finger 55 ending in the lift 45.
- An intermediate section 56 of the arm 49 connects the fixed end 51 and the hooking finger 55 to one another.
- This intermediate section 56 has the shape of a blade which is elastically deformable so that the coupling finger 55 is movable downstream.
- An elastic bend 57 reduces the stiffness of the intermediate section 56.
- a return 58 of the arm 49 extends the gripping finger 55 beyond the lift 45, upstream and then in the opposite direction to the escape wheel 3.
- the shaft 41 forms a stop for this return 58 and thus limits the possibility of displacement of the gripping finger 55 downstream.
- the downstream arm 49 carries a downstream blocking tail 59, able to be placed between two consecutive teeth of the escape wheel 3, so as to prevent it from rotating against the direction.
- the Figures 5 to 8 illustrate the operation of the anchor 2.
- the escape wheel 3 driven by the gear 5 rotates clockwise and one, denoted D, of its teeth meets the upstream lift 44, without being stopped instantly by it.
- the upstream arm 48 is elastically bent, particularly at the level of its elastic elbow 54, which translates by a gradual absorption of kinetic energy and a progressive slowdown of the wheel Exhaust 3.
- the elastic deformation of the arm 48 ends when its gripping finger 52 encounters the pin 42 which stops it, which occurs at the figure 6 .
- the escape wheel 3 is momentarily stopped.
- the elastic deformation of the downstream arm 49 ends when the return 58 encounters the shaft 41 which stops it.
- the shaft 41 then performs a stop function for the downstream arm 49, as illustrated by FIG. figure 8 .
- the pivoting movement of the anchor 2 about its pivot axis X 1 -X ' 1 is reversed again, during the damped stop of the tooth D by the downstream lift 45.
- the downstream arm 49 resumes its initial shape by dissipating the elastic potential energy that it has stored during its damping of the stop of the tooth D.
- the insert 40 may be pivotally mounted on the mass of inertia 43 and biased to a waiting position by an additional spring, in which case the arms 48 and 49 can be rigid or even deleted.
- the two hooking fingers 52 and 55 can be tilting mounted at a distance from one another.
- each of them can carry a lever arm able to act on the lever arm of the other finger attachment.
- These lever arms are arranged in such a way that any gripping finger moved downstream sees its lever arm actuating the lever arm of the other gripping finger in the direction of a reminder of this other gripping finger upstream.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Table Equipment (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Micromachines (AREA)
- Electromechanical Clocks (AREA)
- Transmission Devices (AREA)
Abstract
La présente invention concerne une ancre d'horlogerie pour oscillateur mécanique comprenant un arbre (41) pour son montage de manière oscillante autour d'un axe de pivotement (X 1 -X' 1 ), ainsi que des première et deuxième levées (44, 45) prévues pour être alternativement en prise avec une roue d'échappement (3) lorsque l'ancre d'horlogerie oscille autour de son axe de pivotement (X1-X'1). La première levée (44, 45) au moins est déplaçable par rapport à l'arbre (41) moyennant une absorption d'énergie, depuis une position amont d'attente jusqu'à une position aval de fin d'arrêt qui est décalée de la position amont d'attente, vers l'aval en considérant le sens de progression d'une dent (D) de la roue d'échappement (3) avant un arrêt de cette dent par la première levée (44, 45). L'ancre d'horlogerie comporte un dispositif (53, 56) de rappel de la première levée (44, 45) vers sa position amont d'attente.The present invention relates to a clockwork anchor for a mechanical oscillator comprising a shaft (41) for mounting oscillatingly about a pivot axis (X 1 -X '1), and first and second lifts (44, 45) provided to be alternately engaged with an escape wheel (3) when the watch anchor oscillates about its pivot axis (X1-X'1). The at least one first lift (44, 45) is displaceable with respect to the shaft (41) by means of energy absorption, from an upstream waiting position to a downstream end stop position which is offset by the upstream waiting position, downstream by considering the direction of progression of a tooth (D) of the escape wheel (3) before a stop of this tooth by the first lift (44, 45). The clock anchor comprises a device (53, 56) for returning the first lift (44, 45) to its upstream waiting position.
Description
La présente invention se rapporte au domaine de l'horlogerie. Plus précisément, elle concerne une ancre d'horlogerie pour oscillateur mécanique et un mécanisme de déclenchement temporisé d'horlogerie.The present invention relates to the field of watchmaking. More specifically, it relates to a clock anchor for a mechanical oscillator and a timed clock triggering mechanism.
Des mécanismes de déclenchement temporisé d'horlogerie sont intégrés à divers dispositifs pour permettre d'y déterminer des instants de déclenchement. En particulier, de tels mécanismes sont à la base du fonctionnement de sonneries de montre, dans lesquelles des frappes successives d'un ou de plusieurs timbres indiquent l'heure de manière sonore.Timed time triggering mechanisms are integrated with various devices to enable trigger times to be determined. In particular, such mechanisms are the basis of the operation of ringtones, in which successive strikes of one or more timbres indicate the time of sound.
De manière classique, un mécanisme de déclenchement temporisé d'horlogerie peut comprendre une roue d'échappement et un oscillateur mécanique. Une ancre oscillante de l'oscillateur mécanique comporte deux levées, qui sont alternativement en prise avec la denture de la roue d'échappement. De la sorte, les oscillations régulières de l'ancre d'horlogerie règlent la rotation intermittente de la roue d'échappement.Conventionally, a timed timepiece trigger mechanism may comprise an escape wheel and a mechanical oscillator. An oscillating anchor of the mechanical oscillator has two lifts, which are alternately engaged with the toothing of the escape wheel. In this way, the regular oscillations of the clock anchor regulate the intermittent rotation of the escape wheel.
Chaque levée reçoit l'impact d'une dent de la roue d'échappement avant de stopper momentanément cette roue d'échappement. Les impacts successifs des dents de la roue d'échappement sur les levées produisent un cliquetis qui peut être indésirable. En particulier, dans le cas où le mécanisme de déclenchement temporisé d'horlogerie fait fonctionner une sonnerie mécanique de montre, ce cliquetis parasite les sons produits par la sonnerie de montre.Each lift receives the impact of a tooth of the escape wheel before temporarily stopping the escape wheel. The successive impacts of the escape wheel teeth on the lefts produce a knock that may be undesirable. In particular, in the case where the timed clock triggering mechanism operates a mechanical watch ring, this rattling parasitic sounds produced by the watch ring.
L'invention a au moins pour but de réduire la nuisance sonore que représente le cliquetis produit par un échappement lors de son fonctionnement.The invention is at least intended to reduce the noise that represents the rattling produced by an exhaust during its operation.
Selon l'invention, ce but est atteint grâce à une ancre d'horlogerie pour oscillateur mécanique. Cette ancre d'horlogerie comprend un arbre pour son montage de manière oscillante autour d'un axe de pivotement, ainsi que des première et deuxième levées prévues pour être alternativement en prise avec une roue d'échappement lorsque l'ancre d'horlogerie oscille autour de son axe de pivotement. La première levée au moins est déplaçable par rapport à l'arbre moyennant une absorption d'énergie, depuis une position amont d'attente jusqu'à une position aval de fin d'arrêt qui est décalée de la position amont d'attente, vers l'aval en considérant le sens de progression d'une dent de la roue d'échappement avant un arrêt de cette dent par la première levée. L'ancre d'horlogerie comporte un dispositif de rappel de la première levée vers sa position amont d'attente.According to the invention, this object is achieved thanks to a clock anchor for mechanical oscillator. This watch anchor comprises a shaft for mounting oscillatingly about a pivot axis, and first and second lifts provided to be alternately engaged with an escape wheel when the watch anchor oscillates around of its pivot axis. The at least one first lift is displaceable with respect to the shaft by absorbing energy, from an upstream waiting position to a downstream end stop position which is shifted from the upstream waiting position to downstream by considering the direction of progression of a tooth of the escape wheel before a stop of this tooth by the first lift. The clock anchor comprises a device for returning the first lift to its upstream waiting position.
La première levée est adaptée pour être déplacée par la dent qu'elle est en train d'arrêter. Une absorption d'énergie a lieu lorsque la première levée est ainsi déplacée, ce qui amorti l'arrêt de la dent. Il s'ensuit un cliquetis sensiblement moins sonore, voire imperceptible.The first lift is adapted to be moved by the tooth it is stopping. An energy absorption takes place when the first lift is thus displaced, which dampens the stopping of the tooth. It follows a rattling significantly less sound, even imperceptible.
L'ancre d'horlogerie définie ci-dessus peut incorporer une ou plusieurs autres caractéristiques avantageuses, isolément ou en combinaison, en particulier parmi celles définies ci-après.The clock anchor defined above may incorporate one or more other advantageous features, alone or in combination, in particular from those defined below.
Avantageusement, la deuxième levée est déplaçable par rapport à l'arbre moyennant une absorption d'énergie, depuis une position amont d'attente jusqu'à une position aval de fin d'arrêt qui est décalée de cette position amont d'attente, vers l'aval en considérant le sens de progression d'une dent de la roue d'échappement avant un arrêt de cette dent par la deuxième levée. Dans ce cas, l'ancre d'horlogerie comporte un dispositif de rappel de la deuxième levée vers sa position amont d'attente. Lorsqu'il en est ainsi, le cliquetis produit par le fonctionnement d'un échappement comprenant l'ancre est encore moins sonore dans la mesure où chaque arrêt de la roue d'échappement est amorti.Advantageously, the second lift is displaceable with respect to the shaft by means of energy absorption, from an upstream waiting position to a downstream end stop position which is shifted from this waiting upstream position to downstream by considering the direction of progression of a tooth of the escape wheel before a stop of this tooth by the second lift. In this case, the watch anchor comprises a device for returning the second lift to its upstream waiting position. When this is so, the rattling produced by the operation of an exhaust comprising the anchor is even less audible to the extent that each stop of the escape wheel is damped.
Avantageusement, l'ancre d'horlogerie comporte un bras définissant la première levée.Advantageously, the watch anchor comprises an arm defining the first lift.
Avantageusement, l'ancre d'horlogerie comporte une butée d'arrêt du bras vers l'aval, par rapport à l'arbre, dès que la première levée est dans sa position aval de fin d'arrêt. Lorsque tel est le cas, il est possible d'obtenir un amortissement qui est important tout en étant compatible avec un fonctionnement correct de l'ancre d'horlogerie.Advantageously, the watch anchor comprises a stopping stop of the arm downstream, relative to the shaft, as soon as the first lift is in its downstream end stop position. When this is the case, it is possible to obtain damping which is important while being compatible with the correct operation of the watch anchor.
Avantageusement, la butée est formée par ledit arbre. Lorsque tel est le cas, une simplification de l'ancre d'horlogerie peut être obtenue.Advantageously, the stop is formed by said shaft. When this is the case, a simplification of the clock anchor can be obtained.
Avantageusement, le dispositif de rappel est plus précisément un dispositif de rappel élastique.Advantageously, the return device is more precisely an elastic return device.
Avantageusement, le bras comporte une extrémité fixe par rapport à l'arbre. Le dispositif de rappel est alors un dispositif de rappel élastique comportant un tronçon intermédiaire du bras. Ce tronçon intermédiaire se trouve entre l'extrémité fixe et la première levée et il est élastiquement déformable depuis une première configuration, dans laquelle la première levée est dans sa position amont d'attente, jusqu'à une deuxième configuration, dans laquelle la première levée est dans sa position aval de fin d'arrêt. Lorsque tel est le cas, l'absorption d'énergie résulte de la déformation élastique du bras. Une fois reculé à l'écart de la roue d'échappement, le bras se rappelle lui-même dans sa première configuration, si bien que l'ancre d'horlogerie peut aisément présenter une constitution simple et compacte.Advantageously, the arm has a fixed end relative to the shaft. The return device is then an elastic return device comprising an intermediate portion of the arm. This intermediate section is located between the fixed end and the first lift and is elastically deformable from a first configuration, in which the first lift is in its upstream waiting position, to a second configuration, in which the first lift is in its downstream end-stop position. When this is the case, the energy absorption results from the elastic deformation of the arm. Once back away from the escape wheel, the arm recalls itself in its first configuration, so that the watch anchor can easily have a simple and compact constitution.
Avantageusement, le tronçon intermédiaire du bras comporte un coude élastique. Un tel coude permet au tronçon intermédiaire de présenter l'élasticité voulue sans être trop étendu, ni trop mince.Advantageously, the intermediate portion of the arm comprises an elastic bend. Such a bend allows the intermediate section to have the desired elasticity without being too wide or too thin.
Avantageusement, l'ancre d'horlogerie comporte deux pièces associées rigidement, qui sont une pièce d'assemblage portant l'arbre et un élément rapporté définissant le bras. Lorsque tel est le cas, l'ancre d'horlogerie peut aisément présenter une constitution simple et compacte.Advantageously, the clock anchor comprises two rigidly associated parts, which are an assembly piece carrying the shaft and an insert defining the arm. When this is the case, the watch anchor can easily have a simple and compact constitution.
Avantageusement, la butée est formée par une portion extérieure d'une goupille rigidement fixée dans la pièce d'assemblage. Lorsque tel est le cas, l'ancre d'horlogerie peut aisément présenter une constitution simple et compacte.Advantageously, the stop is formed by an outer portion of a pin rigidly fixed in the assembly part. When this is the case, the watch anchor can easily have a simple and compact constitution.
Avantageusement, la pièce d'assemblage est une masse d'inertie d'un oscillateur mécanique. Lorsque tel est le cas, la masse d'inertie remplit en outre la fonction de pièce maintenant assemblées tout ou partie des autres pièces de l'ancre d'horlogerie, ce qui permet une simplification.Advantageously, the assembly part is a mass of inertia of a mechanical oscillator. When this is the case, the mass of inertia also fulfills the part function now assembled all or part of the other parts of the watch anchor, which allows simplification.
L'invention a également pour objet un mécanisme de déclenchement temporisé d'horlogerie. Ce mécanisme d'horlogerie comprend :
- un dispositif de stockage d'énergie mécanique,
- une roue d'échappement rotative entraînée au moyen d'énergie mécanique fournie par le dispositif de stockage, et
- un oscillateur mécanique, qui comprend une ancre d'horlogerie telle que définie précédemment.
- a device for storing mechanical energy,
- a rotary exhaust wheel driven by mechanical energy provided by the storage device, and
- a mechanical oscillator, which comprises a clock anchor as defined above.
L'ancre d'horlogerie coopère avec la roue d'échappement de manière à régler une rotation intermittente de cette roue d'échappement.The watch anchor cooperates with the escape wheel so as to adjust an intermittent rotation of the escape wheel.
Avantageusement, le mécanisme de déclenchement temporisé d'horlogerie est une sonnerie de montre comprenant un timbre, un marteau de percussion de ce timbre, ainsi qu'un dispositif d'actionnement répétitif du marteau selon une cadence déterminée par la rotation intermittente de la roue d'échappement.Advantageously, the timed timepiece triggering mechanism is a watch bell comprising a bell, a percussion hammer of this stamp, and a device for repetitively actuating the hammer at a rate determined by the intermittent rotation of the wheel. 'exhaust.
D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode particulier de réalisation de l'invention donné à titre d'exemple non limitatif et représenté aux dessins annexés, parmi lesquels :
- la
figure 1 est une vue en plan d'un mécanisme de déclenchement temporisé d'horlogerie qui est conforme à l'invention et qui est plus précisément le mécanisme d'une sonnerie mécanique de montre, - la
figure 2 est une vue en plan qui représente un sous-mécanisme constitutif de la sonnerie mécanique de lafigure 1 et sur laquelle l'angle de vue est inverse de celui de cettefigure 1 , - la
figure 3 est une vue en perspective d'un échappement constitutif de la sonnerie mécanique représentée à lafigure 1 , - la
figure 4 est une vue en plan d'une ancre d'horlogerie qui est conforme à l'invention et qui fait partie de l'échappement représenté à lafigure 3 , et - les
figures 5 à 8 sont des vues en plan analogues dont chacune représente l'échappement de lafigure 3 à l'un de quatre instants successifs lors du fonctionnement de cet échappement.
- the
figure 1 is a plan view of a timed timepiece triggering mechanism which is in accordance with the invention and which is more precisely the mechanism of a mechanical watch bell, - the
figure 2 is a plan view that represents a constituent sub-mechanism of the mechanical bell of thefigure 1 and on which the angle of view is the opposite of that of thisfigure 1 , - the
figure 3 is a perspective view of an escapement constituting the mechanical bell represented in FIG.figure 1 , - the
figure 4 is a plan view of a watch anchor which is in accordance with the invention and which is part of the escapement shown in FIG.figure 3 , and - the
Figures 5 to 8 are similar plan views each of which represents the escape of thefigure 3 at one of four successive instants during operation of this exhaust.
Sur la
Bien que son application aux sonneries mécaniques de montre soit avantageuse notamment avec tout ou partie des caractéristiques du mode de réalisation de la
Le mécanisme de déclenchement temporisé d'horlogerie représenté à la
Un pignon 4 solidaire de la roue d'échappement 3 fait partie d'un rouage 5 qui accouple cette roue d'échappement 3 à un barillet 6 formant un dispositif de stockage d'énergie mécanique. Outre le pignon 4, le rouage 5 comprend une roue 7 engrenant avec le pignon 4, un pignon 8 solidaire de cette roue 7, ainsi qu'une roue 9 engrenant avec le pignon 8.A
Ainsi qu'on peut le voir à la
Toujours sur la
De nouveau sur la
Un levier d'armement et de déclenchement 25 monté pivotant est disposé de manière à pouvoir être actionné par chacune des douze dents du râteau 20. Il coopère avec un levier de renvoi 26 coudé, qui est prévu pour déplacer un marteau basculant 27 et l'amener jusqu'à une position de départ, en armant un ressort 28 de lancement de ce marteau 27. Le levier d'armement et de déclenchement 25, le levier de renvoi 26 et le marteau basculant 27 constituent une chaîne cinématique, à une extrémité de laquelle se trouve le ressort de lancement 28. Un contre-ressort 29 est prévu pour agir sur l'autre extrémité de cette chaîne cinématique. Le ressort de lancement 28 et le contre-ressort 29 rappellent alternativement, dans un sens puis dans l'autre, le levier d'armement et de déclenchement 25, le levier de renvoi 26 et le marteau basculant 27 les uns en contact avec les autres.A pivotally mounted cocking and triggering lever is arranged to be actuable by each of the twelve teeth of the
Après avoir été armé puis libéré, le ressort de barillet 16 fournit l'énergie entraînant l'ensemble du mécanisme de sonnerie de la
Toujours lorsque le barillet 16 délivre l'énergie stockée lors d'un remontage antérieur, au moins une dent du râteau 20 passe devant le levier d'armement et de déclenchement 25 et l'actionne. La dent fait pivoter ce levier de déclenchement et d'actionnement 25 dans le sens d'un armement du ressort de lancement 28. Quand le levier de déclenchement et d'actionnement 25 se décroche ensuite de la dent poursuivant son avance, le ressort de lancement 28 lance le marteau 27 vers un timbre 30, dont la frappe par ce marteau 27 conduit à l'émission d'un son.Still when the
L'importance du remontage du barillet 6 détermine le nombre des dents actionnant successivement le levier d'armement et de déclenchement 25. La durée entre deux frappes successives du timbre 30 par le marteau 27 dépend d'une vitesse qui est réglée par l'échappement 1, puisqu'il s'agit de la vitesse de rotation moyenne du râteau 20. En conclusion, l'échappement 1, le rouage 5, le barillet 6 et le râteau 20 forment ensemble un mécanisme qui établit une temporisation entre deux frappes successives du timbre 30 et qui actionne le sous-mécanisme opérant ces frappes successives.The importance of winding the
L'échappement 1 est représenté seul à la
Au moyen de l'arbre 41, l'ancre 2 est montée de manière à être pivotante autour d'un axe de pivotement X1-X1' parallèle à l'axe de rotation X2-X'2 de la roue d'échappement 3.By means of the
Au sens où on l'entend ici, les levées sont des becs d'accrochage, encore appelés palettes de l'ancre dans le domaine de l'horlogerie. L'élément rapporté 40 définit la levée amont 44 et la levée aval 45 de l'ancre 2. Dans la présente description et dans les revendications annexées, les termes « avant », « amont » et « aval », ainsi que les termes analogues, se réfèrent au sens de progression d'une dent de la roue d'échappement au niveau des levées.In the sense that it is understood here, the lifts are hooking beaks, also called palettes of the anchor in the field of watchmaking. The
Ainsi qu'on peut bien le voir à la
Un tronçon du bras amont 48 forme un doigt d'accrochage 52 se terminant par la levée 44. Un tronçon intermédiaire 53 du bras 48 relie l'extrémité fixe 50 et le doigt d'accrochage 52 l'un à l'autre. Ce tronçon intermédiaire 53 présente la forme d'une lame qui est élastiquement flexible de manière que le doigt d'accrochage 52 soit déplaçable jusqu'à une butée constituée par une portion extérieure de la goupille 42. Un coude élastique 54 réduit la raideur en flexion du tronçon intermédiaire 53.A section of the
Un tronçon du bras aval 49 forme un doigt d'accrochage 55 se terminant par la levée 45. Un tronçon intermédiaire 56 du bras 49 relie l'extrémité fixe 51 et le doigt d'accrochage 55 l'un à l'autre. Ce tronçon intermédiaire 56 présente la forme d'une lame qui est élastiquement déformable de manière que le doigt d'accrochage 55 soit déplaçable vers l'aval. Un coude élastique 57 réduit la raideur du tronçon intermédiaire 56. Un retour 58 du bras 49 prolonge le doigt d'accrochage 55 au-delà de la levée 45, vers l'amont puis dans la direction opposée à la roue d'échappement 3. L'arbre 41 forme une butée pour ce retour 58 et limite ainsi la possibilité de déplacement du doigt d'accrochage 55 vers l'aval.A section of the
Le bras aval 49 porte une queue aval de blocage 59, à même de venir se placer entre deux dents consécutives de la roue d'échappement 3, de manière à empêcher celle-ci de tourner à contre-sens.The
Les
Pendant que se produit l'arrêt amorti de la dent D par la levée amont 44, le mouvement de pivotement de l'ancre 2 autour de son axe de pivotement X1-X'1 s'inverse, suite à quoi la levée amont 44 entame un mouvement de recul par rapport à la roue d'échappement 3. Ce mouvement de recul amène la levée amont 44 à l'écart de la dent D, ce qui libère la roue d'échappement 3. Une fois éloigné de la dent D, le bras amont 48 reprend sa forme initiale moyennant une dissipation de l'énergie potentielle élastique qu'il a emmagasinée lors de son amortissement de l'arrêt de la dent D.While the damping stop of the tooth D occurs by the
Le mouvement de recul de la levée amont 44 s'accompagne d'un mouvement d'avance de la levée aval 45 par rapport à la roue d'échappement 3, qui s'est remise à tourner. Cela conduit à la situation représentée à la
La déformation élastique du bras aval 49 prend fin lorsque le retour 58 rencontre l'arbre 41 qui le stoppe. L'arbre 41 remplit alors une fonction de butée pour le bras aval 49, ce qu'illustre la
Les arrêts intermittents de la roue d'échappement 3 par les levées 44 et 45 sont amortis. Cela se traduit par une réduction sensible du cliquetis produit par le fonctionnement de l'échappement 1.The intermittent stops of the
L'invention ne se limite pas au mode de réalisation décrit précédemment. En particulier, dans une ancre d'horlogerie également conforme à l'invention, l'élément rapporté 40 peut être monté basculant sur la masse d'inertie 43 et rappelé vers une position d'attente par un ressort additionnel, auquel cas les bras 48 et 49 peuvent être rigides, voire supprimés.The invention is not limited to the embodiment described above. In particular, in a clock anchor also according to the invention, the
Selon une autre possibilité toujours dans le cadre de l'invention, les deux doigts d'accrochage 52 et 55 peuvent être montés basculants à distance l'un de l'autre. Dans ce cas, chacun d'eux peut porter un bras de levier à même d'agir sur le bras de levier de l'autre doigt d'accrochage. Ces bras de levier sont agencés de telle manière qu'un quelconque doigt d'accrochage déplacé vers l'aval voie son bras de levier actionner le bras de levier de l'autre doigt d'accrochage dans le sens d'un rappel de cet autre doigt d'accrochage vers l'amont.According to another possibility still within the scope of the invention, the two hooking
Claims (12)
caractérisée en ce que la première levée (44, 45) au moins est déplaçable par rapport à l'arbre (41) moyennant une absorption d'énergie, depuis une position amont d'attente (figure 5, figure 7) jusqu'à une position aval de fin d'arrêt (figure 6, figure 8) qui est décalée de la position amont d'attente, vers l'aval en considérant le sens de progression d'une dent (D) de la roue d'échappement (3) avant un arrêt de cette dent par la première levée (44, 45), l'ancre d'horlogerie comportant un dispositif (53, 56) de rappel de la première levée (44, 45) vers sa position amont d'attente.Clock anchor for a mechanical oscillator, comprising a shaft (41) for mounting oscillatingly about a pivot axis (X 1 -X ' 1 ), and first and second lifts (44, 45) provided for alternately engaged with an escape wheel (3) when the watch anchor oscillates about its pivot axis (X1-X'1),
characterized in that the at least one first lift (44, 45) is displaceable with respect to the shaft (41) by means of energy absorption, from an upstream waiting position (FIG. 5, FIG. downstream end stop position (FIG. 6, FIG. 8) which is shifted from the waiting upstream position downstream by considering the direction of progression of a tooth (D) of the escape wheel (3); ) before a stop of this tooth by the first lift (44, 45), the watch anchor having a device (53, 56) for returning the first lift (44, 45) to its upstream waiting position.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14169042.0A EP2947522B1 (en) | 2014-05-20 | 2014-05-20 | Timepiece pallet for mechanical oscillator and timer-controlled timepiece trigger mechanism |
US14/709,516 US9547277B2 (en) | 2014-05-20 | 2015-05-12 | Timepiece pallet fork for mechanical oscillator and timepiece time-delay release mechanism |
JP2015101757A JP6541427B2 (en) | 2014-05-20 | 2015-05-19 | Clock ankle and clock loose release mechanism for mechanical oscillators |
CN201510259481.2A CN105093896B (en) | 2014-05-20 | 2015-05-20 | Clock and watch pallet fork and clock and watch time delay relieving mechanism for mechnical oscillator |
HK16105000.9A HK1217046A1 (en) | 2014-05-20 | 2016-05-03 | Timepiece pallet fork for mechanical oscillator and timepiece time- delay release mechanism |
US15/368,045 US10234823B2 (en) | 2014-05-20 | 2016-12-02 | Timepiece pallet fork for mechanical oscillator and timepiece time-delay release mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14169042.0A EP2947522B1 (en) | 2014-05-20 | 2014-05-20 | Timepiece pallet for mechanical oscillator and timer-controlled timepiece trigger mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2947522A1 true EP2947522A1 (en) | 2015-11-25 |
EP2947522B1 EP2947522B1 (en) | 2017-05-03 |
Family
ID=50732037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14169042.0A Active EP2947522B1 (en) | 2014-05-20 | 2014-05-20 | Timepiece pallet for mechanical oscillator and timer-controlled timepiece trigger mechanism |
Country Status (5)
Country | Link |
---|---|
US (2) | US9547277B2 (en) |
EP (1) | EP2947522B1 (en) |
JP (1) | JP6541427B2 (en) |
CN (1) | CN105093896B (en) |
HK (1) | HK1217046A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3048791A1 (en) * | 2016-03-14 | 2017-09-15 | Lvmh Swiss Mft Sa | MECHANISM FOR A WATCHING PART AND A WATCHPIECE COMPRISING SUCH A MECHANISM |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3182213B2 (en) * | 2015-12-16 | 2020-10-21 | Société anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie | Mechanism for adjusting an average speed in a clock movement and clock movement |
CN112262349B (en) * | 2018-05-16 | 2022-05-13 | 埃里克·弗雷蒙德 | Escapement mechanism for a timepiece |
CH715091A2 (en) * | 2018-06-07 | 2019-12-30 | Swatch Group Res & Dev Ltd | Timepiece comprising a mechanical movement, the progress of which is regulated by an electromechanical device. |
CN113653799B (en) * | 2021-09-01 | 2022-08-12 | 西安轻工业钟表研究所有限公司 | Self-insurance unlocking mechanism |
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Also Published As
Publication number | Publication date |
---|---|
CN105093896A (en) | 2015-11-25 |
US20170082977A1 (en) | 2017-03-23 |
US10234823B2 (en) | 2019-03-19 |
US20150338827A1 (en) | 2015-11-26 |
HK1217046A1 (en) | 2016-12-16 |
JP2015219243A (en) | 2015-12-07 |
JP6541427B2 (en) | 2019-07-10 |
CN105093896B (en) | 2019-02-12 |
EP2947522B1 (en) | 2017-05-03 |
US9547277B2 (en) | 2017-01-17 |
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