EP3486734B1 - Chronometric monitoring - Google Patents

Chronometric monitoring Download PDF

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Publication number
EP3486734B1
EP3486734B1 EP17201862.4A EP17201862A EP3486734B1 EP 3486734 B1 EP3486734 B1 EP 3486734B1 EP 17201862 A EP17201862 A EP 17201862A EP 3486734 B1 EP3486734 B1 EP 3486734B1
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EP
European Patent Office
Prior art keywords
watch
movement
chronometric
rate
measurement
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EP17201862.4A
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German (de)
French (fr)
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EP3486734A1 (en
Inventor
René Piguet
Benoît Junod
Marc Stranczl
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Montres Breguet SA
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Montres Breguet SA
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Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP17201862.4A priority Critical patent/EP3486734B1/en
Priority to US16/181,571 priority patent/US11003141B2/en
Priority to JP2018211115A priority patent/JP6740318B2/en
Priority to CN201811361044.1A priority patent/CN109782571B/en
Publication of EP3486734A1 publication Critical patent/EP3486734A1/en
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Publication of EP3486734B1 publication Critical patent/EP3486734B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/006—Testing apparatus for complete clockworks with regard to external influences or general good working
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1257—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present
    • G04D7/1264—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard wherein further adjustment devices are present for complete clockworks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/004—Optical measuring and testing apparatus

Definitions

  • the invention relates to a device for chronometric control of watch movement, said device comprising at least one receptacle arranged for maintaining, up to a given acceleration threshold, at least one movement or one. shows, and comprising maneuvering means arranged to maneuver each said receptacle in space, arranged to impose on each said receptacle a global cycle comprising at least one predefined cycle as to its trajectory and its evolution along this trajectory under the control control means comprising a clock or connected to an external time base, said cycle comprising the passage through standard chronometric control positions.
  • the invention relates to the field of chronometric controls for mobile timepieces, marine or on-board watches and chronometers.
  • a device is for example known from CH 699 301 A1 .
  • the chronometric control of a timepiece, in particular a watch, or of its movement, is essential to verify the quality of the product given to the user.
  • This control is governed by official certification standards, established by recognized laboratories or observatories, which are essential for the marketing of products.
  • a first type of measurement 0/24 hours, illustrated by the figure 1 , consists in carrying out measurements at a distance of 24 hours, the first series with the barrel fully loaded, the second series with a 24-hour disarming, each time in six standardized positions, with a measuring device, in particular acoustic, making it possible to measure a parameter "m", consisting of the rate or the amplitude.
  • the object to be checked (watch, or movement, or watch head), which will hereinafter be called “movement”, is placed on the measuring device.
  • a typical measurement consists in carrying out: in the first position 30 seconds of gait stabilization, 2 minutes of measurement, then change of position, and repetition of the measurement for the remaining positions. This measurement, lasting a few minutes in total, is carried out with the barrel fully loaded (“0h”) and after 24 hours of unarming (“24 hours”). The movement is left on the bench for 24 hours to wait for the barrel to unwind, or the barrel is manually unwound by a watchmaker with a number of revolutions equivalent to 24 hours of operation. The total duration of the measurement is rapid, since it is carried out in two times approximately twenty minutes. On the other hand, there is no information on the chronometry between the two measurements (instantaneous measurement).
  • one solution consists in carrying out a measurement over 24 hours for each position, with a winding of the barrel at each change of position, as visible on the figures 2 and 3 .
  • the movement is placed on a measuring device similar to that of the 0/24 hour measurement.
  • a typical measurement consists in performing: 30 seconds of rate stabilization, 24 hours of measurement, then change of position, winding of the barrel, and repetition of the measurement for the remaining positions.
  • the total duration of the measurement is important, and is 6 days.
  • the advantage of this 24-hour measurement is that it provides detailed information on the chronometry between “0 hours” and “24 hours”.
  • the disadvantage is of course the duration of the measurement, which generates a significant work in progress, also linked to a large size of the measurement file.
  • the figure 3 shows the superposition, reduced to a single theoretical cycle of 24 hours, of the six measurements carried out in six positions.
  • the Rolex document EP 3 136 189 A1 in the name of ROLEX describes a chronometric measurement method and more particularly on the positions in which the watch or watch head is positioned during the measurement.
  • the chronometer controls simulate the various positions of the watch during the day of a typical wearer.
  • the invention aims to define chronometric control criteria to precisely qualify the watches produced, and to set up suitable control tools and methods.
  • the invention relates to a device according to claim 1.
  • the invention further relates to a method according to claim 15.
  • the invention proposes to obtain more detailed chronometric information than with a 0/24 hour measurement, while performing, for each standardized position, a measurement spread over 24 hours, overlapping with the measurements made for the other positions, so as to drastically reduce the work in progress compared to a 24-hour measurement per position.
  • the device and the method for rapid measurement of a total duration of the order of 24 hours, according to the invention, allow a complete simulated characterization of the chronometry of the watch in several positions.
  • Movement is measured for a total of 24 hours or more by continuously repeating a measurement sequence.
  • the figures 4 and 5 illustrate examples of how to perform this measurement method.
  • a typical sequence according to the invention comprises: for a first position, 30 seconds of rate stabilization, approximately 40 minutes of measurement in the first position, then change of position and repetition of the rate stabilization and measurement operations, so as to cover standardized positions during an elementary interval of duration Ti, or more particularly six positions, in particular six standardized positions, in a non-limiting implementation of the invention illustrated by the figures. It will be understood that one can choose to perform these measurements on any number of positions, less than or equal to or greater than the six most usual standardized positions. This measurement sequence is repeated several times for a total duration of at least 24 hours.
  • the elementary interval of the sequence has a duration Ti equal to 4 hours, during which six measurements take place per position, each with a duration per position Tp of approximately 40 minutes.
  • the 24 hours of movement analysis are thus divided into six measurement sequences with a duration Ti of 4 hours each.
  • Each of these 4-hour measurement sequences consists of six times 40 minutes of measurement per position.
  • the overall duration of the measurement is thus limited to the reasonable value of 24 hours, which makes it possible to follow the influence of the progressive unwinding of the barrel, in six steps in the present case, and this for each of the standardized positions.
  • the invention therefore offers the advantage of providing complete information on all the positions between the instants 0 h and 24 h, for a measurement over 24 hours in total.
  • fractional measurements represented by small rectangles make it possible to reconstruct the shape of the complete signal, as it would be visible with a conventional 24-hour measurement per position
  • the method according to the invention allows good characterization of the chronometry of the measured part.
  • duration Tp of each measurement per position must not be too long, so that the first measurement 0h from the last position VD (F in the figures) is not too far from the initial instant of the measurement overall.
  • figure 4 is a special case where all the intervals of duration Ti are identical. However, this is not mandatory, and the figure 5 illustrates a variant with intervals of irregular duration.
  • the rate stabilization time becomes proportionally too long. It is therefore necessary that the measurement intervals are of a sufficiently long duration.
  • the measurement of the stabilization time of the rate during a change of position can advantageously constitute a new criterion of chronometry, which is added to the usual observation elements.
  • the measurement of the rate and / or of the amplitude during the change of position can also form a so-called “dynamic” measurement position. If necessary, the change of position can be extended and changed into a continuous movement of movement 2 or watch 3 during a certain time interval in order to constitute a sufficiently long measuring position.
  • the method described above does not provide information on the position of the hands. It is also advantageous to combine the implementation of the method according to the invention with a measurement of the daytime rate, with taking of the state of the watch at least at the start and end of the measurement, and advantageously with taking of state intermediaries.
  • This status recording can in particular be carried out by one of the optical methods described in the document EP 2 458 458 A1 on behalf of The Swatch Group Research & Development Ltd.
  • the limitation of the measurement to a total duration of 24 hours obeys production cost constraints, and it will be understood that the observation of a movement according to the principle of the invention may not be limited to a measurement. ranging from 0 hours to 24 hours, but over a longer period, which can reach the entire power reserve, the duration of which is then easy to determine.
  • the measurement also makes it possible, in an innovative way, to determine the power reserve of the watch, in combination with changes in position.
  • the time spent in each position can also be weighted, to simulate a typical wear.
  • This measurement makes it possible to precisely characterize the watch.
  • the measurement makes it possible to calculate and simulate daytime walking according to different types of wear, which makes it possible to certify a watch for a particular wear range.
  • the measurement is advantageously combined with changes in temperature, in order to define the coefficient C, or / and or to simulate a particular wear, for example 16 hours at 33C ° then 8 hours at 23C °.
  • the measurement is advantageously combined with variations in atmospheric pressure, or other physical parameters of the environment of the watch, such as the degree of hygrometry, or magnetic fields, or the like.
  • environmental generating means 80 are used, which are arranged to impose particular physical conditions, where the measurement takes place: temperature, humidity, magnetic field, or the like.
  • this measurement method makes it possible to characterize the chronometric properties in several positions of the watch for a measurement period. relatively short, and may be accompanied by the qualification of the watch in particular physical conditions or at the limits provided for its operation, and for particular type wearers.
  • the invention relates to a device 1 for chronometric control of the movement 2 of a watch 3, or of a watch 3.
  • This device 1 comprises at least one receptacle 4, which is arranged for maintaining it in complete safety, up to an acceleration threshold. given, at least one movement 2 or a watch 3.
  • the device 1 advantageously but without limitation comprises multi-axis maneuvering means 20, which are arranged to maneuver each receptacle 4 in space, and which are arranged to impose on each receptacle 4 an overall cycle comprising at least one predefined cycle as regards to its trajectory under the control of control means 5 comprising a clock 6 or linked to an external time base.
  • trajectory is meant here all the position, orientation, speed and acceleration parameters of each receptacle 4: the geometric curve along which each receptacle 4 moves, and, at each point of this geometric curve, the orientation angles in space of this receptacle 4, and its velocity and acceleration vectors.
  • This predefined cycle involves passing through all or part of the standard chronometric control positions, of the “COSC Swiss Official Chronometer Control” type, or through the positions required for similar reference frames: Geneva Chronometric Observatory, Besan affair Officer, Hamburg Observatory , former Chronometric Officer of Neucaul, or similar.
  • the predefined cycle comprises the six control positions, two horizontal HH (A), HB (B), and four vertical: VB (C), VG (D), VH (E), VD (F).
  • the overall cycle can include more chronometric measurements than the traditional static positions, in particular to validate the chronometry of the movement 2 or of the watch 3 in dynamics, in uniform movement, uniformly accelerated or decelerated, or other, in particular in movement. random.
  • the overall cycle also comprises the observation of the chronometry during a stabilization phase just after stopping in a static position, the pace of the variation of rate from the moment of stopping until the moment when the rate is stopped. regular and stabilized provides information on the movement, specific to this one, which can even make it possible to distinguish counterfeits.
  • the maneuvering means 20 are arranged to maneuver each receptacle 4 in space, and the device 1 comprises rate sensor means 7, which are arranged for recording, in particular acoustically and / or optically, the operating parameters of each movement 2 (or watch 3) on board a receptacle 4 during a movement or / and an acceleration. These movements in space can be angular as well as curvilinear. More particularly, this recording is correlated with the recording of the running parameters, and of the physical conditions of the environment in which the time control takes place.
  • the device 1 comprises control means 10 and analysis means 9, which are interfaced with the control means 5, the walking sensor means 7, and in a particular variant of the environmental sensor means 8, and which are arranged to evaluate the wearing behavior of each movement 2 or respectively of each watch 3, and more particularly to evaluate the chronometry of each movement 2 or respectively of each watch 3 according to a kinematic and / or dynamic cycle applied to each receptacle 4.
  • the walking sensor means 7 are connected with environmental sensor means 8 for recording, which is correlated with said recording of the walking parameters, of the physical conditions of the environment in which the chronometer control takes place
  • the control means 10 and the analysis means 9 are interfaced both with the control means 5, the walking sensor means 7, and the walking means s environmental sensors 8.
  • control means 10 and analysis 9 are also designed to issue an inspection certificate in the event that all the measured values meet predefined tolerances, or to restart an iterative process for resuming the running adjustment and test otherwise.
  • control means 10 include a sequencer 50, which is arranged to control the changes of chronometric position of the movement 2, or respectively of the watch 3, within a multi-position sequence, a change of position chronometric after each measurement by position, and to restart a multi-position sequence as soon as the previous one is completed and in accordance with the total predefined duration of a cycle of several successive multi-position sequences.
  • This sequencer 50 is further designed to manage the duration of stabilization of the rate Ts, of measurement by position Tp, and of the multi-position sequence interval Ti defining an elementary interval in which a chronometric check is carried out in each of the chronometric positions. predefined.
  • the gait stabilization times Ts are conventionally a few seconds, and in particular but not limited to between 20 seconds and 30 seconds.
  • control means 10 include storage means 30, which are arranged to store parameters of tolerances, value thresholds, or / and to store parameters of duration and physical conditions representative of particular wear-types, and are at this effect advantageously coupled with these environmental sensor means 8 and with environment generating means 80, which are arranged to impose physical conditions particular, where the measurement takes place: temperature, hygrometry, magnetic field, or other.
  • control means 10 and the storage means 30 are arranged to weight the time spent in each position to simulate a particular type of wearer.
  • this device 1 comprises optical measuring means 90 for measuring the state of certain displays of the movement 2, or respectively of the watch 3, in correlation with the internal clock 6, and which are advantageously coupled to the storage means 30.
  • this device 1 comprises rate adjustment means 11, and the control means 10 are arranged to send control signals to actuators 12 included in the rate adjustment means 11, in order to correct the operation of the operating means.
  • adjustment that includes a resonator of movement 2 or respectively of watch 3, before proceeding to at least one new predefined test cycle.
  • control means 10 comprise a display capable of communicating to a watch technician the instructions for adjusting the resonator of the movement 2 or of the watch 3.
  • control means 10 are arranged to deliver, when all the tests carried out satisfy the predefined chronometric criteria, a document which is the chronometry certificate of the movement 2 considered (or of the watch 3 as the case may be).
  • control means 10 and the analysis means 9 are designed to issue an inspection certificate in the event that all the measured values meet predefined tolerances, or to restart an iterative process of resuming operating adjustment and testing otherwise.
  • control means 10 are arranged to impose on the sequencer particular durations of measurement per position Tp, or / and particular durations of multi-position sequence Ti. More particularly, the particular measurement times per position Tp are irregular within the same multi-position sequence. More particularly, the particular durations of multi-position sequences are irregular within the overall rate control cycle.
  • control means 10 comprise means for generating random numbers 14 arranged to generate random durations, within predefined ranges, measurement times per position Tp, or / and multi-position sequence times Ti, transmitted to the sequencer 50.
  • these walking sensor means 7, and the environmental sensor means 8 are arranged to subject the movement 2 or respectively the watch 3, to additional validation tests, predefined or random, in particular in relation to the generator means of environment 80.
  • the walking sensor means 7 are acoustic, such as a microphone or the like, or are optical, such as a camera.
  • the rate adjustment means 11 comprise a robotic manipulator, able to intervene by screwing a snowshoe screw, displacement or / and rotation of a hairspring pin, by deformation or displacement of limiting pins. the active part of a hairspring, by the action of a laser beam on a hairspring or on a balance, or the like.
  • the invention relates to a chronometric control method of a watch movement 2 3, or of a watch 3, according to which one imposes on a receptacle 4 carrying the movement 2, or respectively the watch 3, movements comprising at least a cycle which is predefined as to its trajectory under the control of control means 5 comprising a clock 6 or linked to an external time base, the cycle comprising the passage through standard chronometric control positions.
  • This cycle comprises, with a predefined minimum duration, a plurality of successive multi-position sequences, within each of which the movement 2, or respectively the watch 3, is positioned successively in one of the standardized positions for a first phase of stabilization of movement. and a second step control phase during a measurement by position. And we measure the walking parameters of movement 2 or respectively of watch 3 in the positions in each of the successive multi-position sequences. And we compare the operating parameters with set values.
  • the chronometric control is carried out both during a movement of the receptacle 4 with variable position of the center of inertia of the movement 2 or respectively of the watch 3, during an angular movement of the receptacle 4 in a fixed position of the center of inertia of movement 2 or respectively of watch 3, during a stabilization phase after reaching a fixed position of the center of inertia of movement 2 or respectively of watch 3 and the cancellation of its linear and angular speed vectors and of its acceleration and during which phase of stabilization the rate is variable, and during a phase of stopping in a fixed position of the center of inertia of the movement 2 or respectively of the watch 3 and with linear and angular speed vectors and an acceleration all zero and in which stop phase operation is stable.
  • control means 10 comprising a sequencer 50 are implemented, which is arranged to control changes in the chronometric position of the movement 2 or respectively of the watch 3 within a multi-position sequence, after each measurement by position, and to restart a multi-position sequence from the completion of the previous one and in compliance with the predefined total duration of a cycle of several successive multi-position sequences, the sequencer 50 being further arranged to manage stabilization times rate Ts, measurement times per position Tp, and multi-position sequence interval durations Ti defining an elementary interval during which a chronometric check is carried out in each of the predefined chronometric positions.
  • the time spent in each position is weighted to simulate a typical wear.
  • an inspection certificate is issued in the event that all of the measured values meet predefined tolerances.
  • an iterative process of resuming operating adjustment and testing is restarted in the opposite case.
  • the rate of movement 2 or respectively of watch 3 is measured for a total duration of at least 24 hours, by continuously repeating a multi-position measurement sequence, which comprises, for a first position, 30 seconds of rate stabilization, 40 minutes of measurement in the first position, then change of position and repetition of the rate stabilization and measurement operations, so as to cover the standardized positions for an elementary interval of duration Ti of 4 hours.
  • a multi-position measurement sequence which comprises, for a first position, 30 seconds of rate stabilization, 40 minutes of measurement in the first position, then change of position and repetition of the rate stabilization and measurement operations, so as to cover the standardized positions for an elementary interval of duration Ti of 4 hours.
  • all the elementary intervals are of identical duration Ti.
  • the elementary intervals have irregular durations.
  • the monitoring of the rate is combined with a measurement of the daytime rate, with the state of the watch being taken at least at the start and end of the measurement, by an optical method.
  • the acoustic measurement is used to control the triggering of photographs of the display at instants 0 h and 24 h.
  • the power reserve of the watch is determined, in combination with changes in position.
  • the acoustic signature of the movement 2 or respectively of the watch 3 is recorded throughout the test, and in that the operation of the date is simultaneously checked with the passage of the date at midnight when the movement 2 or respectively the watch 3 has some.
  • the rate measurement is combined with variations in the physical conditions of the environment of the watch, which are imposed by environmental generating means 80, arranged to impose particular conditions of temperature, or / and hygrometry. , or / and magnetic field.
  • gait sensor means 7 for the continuous or discontinuous recording of the gait parameters of each movement 2, or respectively watch 3, on board a receptacle 4 which is set in motion to cause different positions to be taken in the movement. space for each movement 2, or respectively for each watch 3.
  • the walking sensor means 7 are used in connection with the environmental sensor means 8 for the continuous or discontinuous recording, correlated with the recording of the walking parameters, of the physical conditions of the environment in which takes place. chronometric control, and in that control means 10 and analysis means 9 interfaced with control means 5, walking sensor means 7, and environmental sensor means 8 are used.
  • control means 10 and the analysis means 9 interfaced with the control means 5 and the walking sensor means 7, and arranged to evaluate the chronometry, according to a particular type of wear, of each movement 2. or respectively of each watch 3, to issue an inspection certificate in the event that all the measured values satisfy to predefined tolerances, or to restart an iterative process of resuming the operating adjustment and the test in the opposite case.
  • control means 10 and the analysis means 9 are used to evaluate the chronometry of each movement 2 or respectively of each watch 3 according to a kinematic and / or dynamic cycle applied to each receptacle 4.
  • a kinematic and / or dynamic cycle is generated to simulate a particular load, or according to a random cycle, or according to a dynamic position, or according to a stabilization position following a change of position.
  • control means 10 comprising means for generating random numbers 14 arranged to generate random durations, within predefined ranges, measurement durations per position Tp, or / and multi-sequence durations. -positions Ti.

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Description

Domaine de l'inventionField of the invention

L'invention concerne un dispositif de contrôle chronométrique de mouvement de montre, ou de montre, ledit dispositif comportant au moins un réceptacle agencé pour le maintien, jusqu'à un seuil d'accélération donné, d'au moins un mouvement ou d'une montre, et comportant des moyens de manœuvre agencés pour manœuvrer dans l'espace chaque dit réceptacle, agencés pour imposer à chaque dit réceptacle un cycle global comportant au moins un cycle prédéfini quant à sa trajectoire et son évolution le long de cette trajectoire sous le pilotage de moyens de commande comportant une horloge ou reliés à une base de temps externe, ledit cycle comportant le passage par des positions normalisées de contrôle chronométrique.The invention relates to a device for chronometric control of watch movement, said device comprising at least one receptacle arranged for maintaining, up to a given acceleration threshold, at least one movement or one. shows, and comprising maneuvering means arranged to maneuver each said receptacle in space, arranged to impose on each said receptacle a global cycle comprising at least one predefined cycle as to its trajectory and its evolution along this trajectory under the control control means comprising a clock or connected to an external time base, said cycle comprising the passage through standard chronometric control positions.

L'invention concerne le domaine des contrôles chronométriques pour les pièces d'horlogerie mobiles, montres et chronomètres de marine ou de bord. Un tel dispositif est par exemple connu de CH 699 301 A1 .The invention relates to the field of chronometric controls for mobile timepieces, marine or on-board watches and chronometers. Such a device is for example known from CH 699 301 A1 .

Arrière-plan de l'inventionBackground of the invention

Le contrôle chronométrique d'une pièce d'horlogerie, notamment une montre, ou de son mouvement, est capital pour vérifier la qualité du produit remis à l'utilisateur. Ce contrôle est régi par des normes de certifications officielles, établies par des laboratoires ou observatoires reconnus, qui sont incontournables pour la mise sur le marché des produits.The chronometric control of a timepiece, in particular a watch, or of its movement, is essential to verify the quality of the product given to the user. This control is governed by official certification standards, established by recognized laboratories or observatories, which are essential for the marketing of products.

Les contrôles chronométriques actuels mesurent les propriétés de la montre dans des positions statiques. Classiquement des contrôles sont effectués dans six positions de contrôle, deux horizontales HH (A), HB (B), et quatre verticales : VB (C), VG (D), VH (E), VD (F).Current chronometric controls measure the properties of the watch in static positions. Conventionally, controls are carried out in six control positions, two horizontal HH (A), HB (B), and four vertical: VB (C), VG (D), VH (E), VD (F).

Différents protocoles de mesure acoustique sont connus de l'homme du métier.Various acoustic measurement protocols are known to those skilled in the art.

Un premier type de mesure, dite 0/24 heures, illustré par la figure 1, consiste à effectuer des mesures distantes de 24 heures, la première série avec le barillet à pleine charge, la deuxième série avec un désarmage de 24 heures, à chaque fois dans six positions normalisées, avec un appareil de mesure, notamment acoustique, permettant de mesurer un paramètre « m », constitué par la marche ou l'amplitude.A first type of measurement, called 0/24 hours, illustrated by the figure 1 , consists in carrying out measurements at a distance of 24 hours, the first series with the barrel fully loaded, the second series with a 24-hour disarming, each time in six standardized positions, with a measuring device, in particular acoustic, making it possible to measure a parameter "m", consisting of the rate or the amplitude.

Dans cette mesure de 0/24 heures, l'objet à contrôler (montre, ou mouvement, ou tête de montre), qu'on appellera ci-après « mouvement », est placé sur l'appareil de mesure. Une mesure typique consiste à effectuer: dans la première position 30 secondes de stabilisation de la marche, 2 minutes de mesure, puis changement de position, et répétition de la mesure pour les positions restantes. Cette mesure de quelques minutes au total est effectuée avec le barillet à pleine charge (« 0h ») et après 24 heures de désarmage (« 24h »). Le mouvement est laissé sur l'établi durant 24 heures pour attendre le dévidement du barillet, ou bien le barillet est dévidé manuellement par un horloger d'un nombre de tours équivalent à 24 heures de fonctionnement. La durée totale de la mesure est rapide, puisqu'elle est effectuée en deux fois une vingtaine de minutes environ. En revanche on ne dispose pas d'information sur la chronométrie entre les deux mesures (mesure instantanée).In this 0/24 hour measurement, the object to be checked (watch, or movement, or watch head), which will hereinafter be called “movement”, is placed on the measuring device. A typical measurement consists in carrying out: in the first position 30 seconds of gait stabilization, 2 minutes of measurement, then change of position, and repetition of the measurement for the remaining positions. This measurement, lasting a few minutes in total, is carried out with the barrel fully loaded (“0h”) and after 24 hours of unarming (“24 hours”). The movement is left on the bench for 24 hours to wait for the barrel to unwind, or the barrel is manually unwound by a watchmaker with a number of revolutions equivalent to 24 hours of operation. The total duration of the measurement is rapid, since it is carried out in two times approximately twenty minutes. On the other hand, there is no information on the chronometry between the two measurements (instantaneous measurement).

Pour pallier cet inconvénient, une solution consiste à effectuer une mesure sur 24 heures pour chaque position, avec un remontage du barillet à chaque changement de position, tel que visible sur les figures 2 et 3. Le mouvement est placé sur un appareil de mesure similaire à celui de la mesure 0/24 heures. Une mesure typique consiste à effectuer: 30 secondes de stabilisation de la marche, 24 heures de mesure, puis changement de position, remontage du barillet, et répétition de la mesure pour les positions restantes. La durée totale de la mesure est importante, et est de 6 jours. L'avantage de cette mesure sur 24 heures est de fournir une information détaillée sur la chronométrie entre le « 0 heure» et le « 24 heures». L'inconvénient est bien sûr la durée de la mesure, qui génère un en-cours de production important, liée aussi à une taille importante du fichier de mesure. La figure 3 montre la superposition, ramenée à un cycle théorique unique de 24 heures, des six mesures effectuées dans six positions.To overcome this drawback, one solution consists in carrying out a measurement over 24 hours for each position, with a winding of the barrel at each change of position, as visible on the figures 2 and 3 . The movement is placed on a measuring device similar to that of the 0/24 hour measurement. A typical measurement consists in performing: 30 seconds of rate stabilization, 24 hours of measurement, then change of position, winding of the barrel, and repetition of the measurement for the remaining positions. The total duration of the measurement is important, and is 6 days. The advantage of this 24-hour measurement is that it provides detailed information on the chronometry between “0 hours” and “24 hours”. The disadvantage is of course the duration of the measurement, which generates a significant work in progress, also linked to a large size of the measurement file. The figure 3 shows the superposition, reduced to a single theoretical cycle of 24 hours, of the six measurements carried out in six positions.

Le document Rolex EP 3 136 189 A1 au nom de ROLEX décrit une méthode de mesure chronométrique et plus particulièrement sur les positions dans lesquelles la montre ou tête de montre est positionnée durant la mesure. Les contrôles de chronométrie simulent les diverses positions de la montre durant la journée d'un porter type.The Rolex document EP 3 136 189 A1 in the name of ROLEX describes a chronometric measurement method and more particularly on the positions in which the watch or watch head is positioned during the measurement. The chronometer controls simulate the various positions of the watch during the day of a typical wearer.

Le document EP 2 458 458 A1 au nom de The Swatch Group Research & Development Ltd décrit des qualifications chronométriques par méthodes optiques.The document EP 2 458 458 A1 on behalf of The Swatch Group Research & Development Ltd describes chronometric qualifications by optical methods.

Résumé de l'inventionSummary of the invention

L'invention vise à définir des critères de contrôle chronométrique pour qualifier précisément les montres produites, et à mettre en place des outils et méthodes de contrôle adéquats.The invention aims to define chronometric control criteria to precisely qualify the watches produced, and to set up suitable control tools and methods.

A cet effet, l'invention concerne un dispositif selon la revendication 1.To this end, the invention relates to a device according to claim 1.

L'invention concerne encore un procédé selon la revendication 15.The invention further relates to a method according to claim 15.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • la figure 1 est un diagramme, avec le temps en abscisse, et en ordonnée une mesure de marche ou d'amplitude, selon premier type de mesure de marche connu, dite 0/24 heures, où la marche est mesurée successivement dans six positions normalisées, à deux reprises, à un instant 0h avec un barillet complètement armé, et à un instant 24h après un jour de désarmage;
  • la figure 2 est un diagramme similaire à celui de la figure 1, selon un deuxième type de mesure de marche connu, dite mesure sur 24 heures pour chaque position, où la marche est mesurée successivement dans six positions normalisées, à chaque fois pendent 24 heures successives;
  • la figure 3 représente la superposition sur une période de 24 heures unique, des six graphes de la figure 2 ;
  • la figure 4 est un diagramme similaire à celui de la figure 1, qui se réfère au procédé selon l'invention, selon lequel on mesure les paramètres de marche au cours de séquences multi-positions successives, chacune d'une durée de 4 heures, et au sein de chacune desquelles on effectue la mesure successivement dans des positions chronométriques, plus particulièrement six positions dans cette mise en oeuvre non limitative de l'invention ;
  • la figure 5 est une représentation simplifiée du diagramme de la figure 4, dans une variante où les séquences multi-positions successives sont de durées irrégulières ;
  • la figure 6 est un schéma illustrant un dispositif apte à mettre en oeuvre le procédé des figures 4 ou 5.
Other characteristics and advantages of the invention will become apparent on reading the detailed description which follows, with reference to the appended drawings, where:
  • the figure 1 is a diagram, with time on the abscissa, and on the ordinate a rate or amplitude measurement, according to the first known type of rate measurement, called 0/24 hours, where the rate is measured successively in six standardized positions, at two times, at a time of 0 hours with a fully cocked barrel, and at a time of 24 hours after a day of disarming;
  • the figure 2 is a diagram similar to that of the figure 1 , according to a second type of known walking measurement, called a 24-hour measurement for each position, where the walking is measured successively in six standardized positions, each time for 24 successive hours;
  • the figure 3 represents the superposition over a single 24-hour period of the six graphs of the figure 2 ;
  • the figure 4 is a diagram similar to that of the figure 1 , which refers to the method according to the invention, according to which the walking parameters are measured during successive multi-position sequences, each lasting 4 hours, and within each of which the measurement is carried out successively in chronometric positions, more particularly six positions in this non-limiting implementation of the invention;
  • the figure 5 is a simplified representation of the diagram of the figure 4 , in a variant where the successive multi-position sequences are of irregular lengths;
  • the figure 6 is a diagram illustrating a device capable of implementing the method of figures 4 or 5 .

Description détaillée des modes de réalisation préférésDetailed description of the preferred embodiments

L'invention se propose d'obtenir une information chronométrique plus détaillée qu'avec une mesure de 0/24 heures, tout en effectuant, pour chaque position normalisée, une mesure étalée sur 24 heures, en recouvrement avec les mesures effectuées pour les autres positions, de façon à réduire drastiquement l'en-cours de production par rapport à une mesure sur 24 heures par position.The invention proposes to obtain more detailed chronometric information than with a 0/24 hour measurement, while performing, for each standardized position, a measurement spread over 24 hours, overlapping with the measurements made for the other positions, so as to drastically reduce the work in progress compared to a 24-hour measurement per position.

Le dispositif et la une méthode de mesure rapide d'une durée totale de l'ordre de 24 heures, selon l'invention, permettent une caractérisation simulée complète de la chronométrie de la montre dans plusieurs positions.The device and the method for rapid measurement of a total duration of the order of 24 hours, according to the invention, allow a complete simulated characterization of the chronometry of the watch in several positions.

Il s'agit de cumuler les avantages des deux méthodes classiques : rapidité de la mesure de 0/24 heures, et information complète mesure sur 24 heures par position.This involves combining the advantages of the two classic methods: 0/24 hour measurement speed, and complete measurement information over 24 hours per position.

Le mouvement est mesuré pendant une durée totale de 24 heures, ou davantage, en répétant en continu une séquence de mesure. Les figures 4 et 5 illustrent des exemples de conduite de cette méthode de mesure.Movement is measured for a total of 24 hours or more by continuously repeating a measurement sequence. The figures 4 and 5 illustrate examples of how to perform this measurement method.

Une séquence-type selon l'invention comporte : pour une première position, 30 secondes de stabilisation de la marche, environ 40 minutes de mesure dans la première position, puis changement de position et répétition des opérations de stabilisation de la marche et de mesure, de façon à couvrir des positions normalisées pendant un intervalle élémentaire de durée Ti, ou plus particulièrement six positions, notamment six positions normalisées, dans une mise en oeuvre non limitative de l'invention illustrée par les figures. On comprend qu'on peut choisir d'effectuer ces mesures sur un nombre quelconque de positions, inférieur, ou égal, ou supérieur aux six positions normalisées les plus usuelles. Cette séquence de mesure est répétée plusieurs fois durant une durée totale d'au moins 24 heures.A typical sequence according to the invention comprises: for a first position, 30 seconds of rate stabilization, approximately 40 minutes of measurement in the first position, then change of position and repetition of the rate stabilization and measurement operations, so as to cover standardized positions during an elementary interval of duration Ti, or more particularly six positions, in particular six standardized positions, in a non-limiting implementation of the invention illustrated by the figures. It will be understood that one can choose to perform these measurements on any number of positions, less than or equal to or greater than the six most usual standardized positions. This measurement sequence is repeated several times for a total duration of at least 24 hours.

Dans le cas non limitatif de la figure 4, l'intervalle élémentaire de la séquence a une durée Ti égale à 4 heures, pendant laquelle ont lieu six mesures par position, chacune avec une durée par position Tp d'environ 40 minutes. Les 24 heures d'analyse du mouvement sont ainsi découpées en six séquences de mesure d'une durée Ti de 4 heures chacune. Chacune de ces séquences de mesure de 4 heures est composée de six fois 40 minutes de mesure par position.In the non-limiting case of figure 4 , the elementary interval of the sequence has a duration Ti equal to 4 hours, during which six measurements take place per position, each with a duration per position Tp of approximately 40 minutes. The 24 hours of movement analysis are thus divided into six measurement sequences with a duration Ti of 4 hours each. Each of these 4-hour measurement sequences consists of six times 40 minutes of measurement per position.

La durée globale de la mesure est ainsi limitée à la valeur raisonnable de 24 heures, qui permet de suivre l'influence du désarmage progressif du barillet, en six étapes dans le cas d'espèce, et ceci pour chacune des positions normalisées.The overall duration of the measurement is thus limited to the reasonable value of 24 hours, which makes it possible to follow the influence of the progressive unwinding of the barrel, in six steps in the present case, and this for each of the standardized positions.

L'invention offre donc l'avantage de fournir une information complète sur toutes les positions entre les instants 0h et 24h, pour une mesure sur 24 heures au total. Comme illustré à la figure 4, les mesures fractionnaires représentées par de petits rectangles permettent de reconstruire l'allure du signal complet, tel qu'il serait visible avec une mesure classique sur 24 heures par position En effet, malgré la fragmentation de la mesure, le procédé selon l'invention permet une bonne caractérisation de la chronométrie de la pièce mesurée.The invention therefore offers the advantage of providing complete information on all the positions between the instants 0 h and 24 h, for a measurement over 24 hours in total. As shown in figure 4 , fractional measurements represented by small rectangles make it possible to reconstruct the shape of the complete signal, as it would be visible with a conventional 24-hour measurement per position In fact, despite the fragmentation of the measurement, the method according to the invention allows good characterization of the chronometry of the measured part.

La définition des durées des intervalles de mesure n'est pas anodine. En effet la durée Tp de chaque mesure par position ne doit pas être trop longue, de façon à ce que la première mesure 0h de la dernière position VD (F sur les figures) ne soit pas trop éloignée de l'instant initial de la mesure globale.The definition of the durations of the measurement intervals is not trivial. Indeed the duration Tp of each measurement per position must not be too long, so that the first measurement 0h from the last position VD (F in the figures) is not too far from the initial instant of the measurement overall.

L'exemple de la figure 4 est un cas particulier où tous les intervalles de durée Ti sont identiques. Ceci n'est toutefois pas obligatoire, et la figure 5 illustre une variante avec des intervalles de durée irrégulière.The example of figure 4 is a special case where all the intervals of duration Ti are identical. However, this is not mandatory, and the figure 5 illustrates a variant with intervals of irregular duration.

Une étude statistique de chaque calibre, effectuée en amont, permet d'optimiser cette définition de durée d'intervalles.A statistical study of each caliber, carried out upstream, makes it possible to optimize this definition of interval duration.

Il faut bien comprendre que, dans un mouvement, les rouages ne sont pas parfaits, et le couple disponible à la roue d'échappement n'est pas constant, mais fluctue en fonction des défauts de mal-rond des mobiles ou des défauts de taillage des dents entre autres. Il en résulte des oscillations de l'amplitude et de la marche. Il faut tenir compte de ces variations de rouage types pour la définition des durées d'intervalles. Un intervalle trop court a comme défaut de mesurer un maximum ou un minimum local, et non la vraie valeur moyenne.It should be understood that, in a movement, the cogs are not perfect, and the torque available at the escape wheel is not constant, but fluctuates as a function of the mis-rounding of the moving parts or of cutting faults. teeth among others. This results in oscillations of amplitude and gait. These typical gear variations must be taken into account when defining interval times. An interval that is too short has the default of measuring a local maximum or minimum, and not the true average value.

En cas d'intervalles de mesures trop courts, le temps de stabilisation de la marche devient proportionnellement trop important. Il faut donc que les intervalles de mesures soient d'une durée suffisamment importante.If the measurement intervals are too short, the rate stabilization time becomes proportionally too long. It is therefore necessary that the measurement intervals are of a sufficiently long duration.

La mesure du temps de stabilisation de la marche lors d'un changement de position peut avantageusement constituer un nouveau critère de chronométrie, qui s'ajoute aux éléments d'observation usuels.The measurement of the stabilization time of the rate during a change of position can advantageously constitute a new criterion of chronometry, which is added to the usual observation elements.

La mesure de la marche et/ou de l'amplitude durant le changement de position peut également former une position de mesure dite « dynamique ». S'il en est besoin, le changement de position peut être prolongé et modifié en un mouvement continu du mouvement 2 ou de la montre 3 durant un certain intervalle de temps afin de constituer une position de mesure suffisamment longue.The measurement of the rate and / or of the amplitude during the change of position can also form a so-called “dynamic” measurement position. If necessary, the change of position can be extended and changed into a continuous movement of movement 2 or watch 3 during a certain time interval in order to constitute a sufficiently long measuring position.

La méthode décrite ci-dessus ne donne pas d'information sur la position des aiguilles. Aussi il est avantageux de combiner la mise en œuvre de la méthode selon l'invention avec une mesure de la marche diurne, avec prise d'état de la montre au moins au début et fin de la mesure, et avantageusement avec des prises d'état intermédiaires. Cette prise d'état peut notamment être réalisée par une des méthodes optiques décrites par le document EP 2 458 458 A1 au nom de The Swatch Group Research & Development Ltd.The method described above does not provide information on the position of the hands. It is also advantageous to combine the implementation of the method according to the invention with a measurement of the daytime rate, with taking of the state of the watch at least at the start and end of the measurement, and advantageously with taking of state intermediaries. This status recording can in particular be carried out by one of the optical methods described in the document EP 2 458 458 A1 on behalf of The Swatch Group Research & Development Ltd.

Il est notamment intéressant de commander, par la mesure acoustique, le déclenchement de photographies de l'affichage aux instants 0h et 24h, et lors des prises d'état intermédiaire quand elles sont prévues.It is in particular advantageous to control, by the acoustic measurement, the triggering of photographs of the display at instants 0h and 24h, and during intermediate state taking when they are scheduled.

Bien sûr, la limitation de la mesure à une durée totale de 24 heures obéit à des contraintes de coût de production, et on comprend que l'observation d'un mouvement selon le principe de l'invention peut ne pas se limiter à une mesure allant de 0h à 24h, mais sur une durée plus large, pouvant atteindre toute la réserve de marche, dont la durée est alors facile à déterminer.Of course, the limitation of the measurement to a total duration of 24 hours obeys production cost constraints, and it will be understood that the observation of a movement according to the principle of the invention may not be limited to a measurement. ranging from 0 hours to 24 hours, but over a longer period, which can reach the entire power reserve, the duration of which is then easy to determine.

La mesure permet également, de façon innovante, de déterminer la réserve de marche de la montre, en combinaison avec des changements de position.The measurement also makes it possible, in an innovative way, to determine the power reserve of the watch, in combination with changes in position.

La durée passée dans chaque position peut également être pondérée, pour simuler un porter type.The time spent in each position can also be weighted, to simulate a typical wear.

Cette mesure permet de caractériser précisément la montre. La mesure permet de calculer et simuler la marche diurne selon différents types de porter, ce qui rend possible une certification de montre pour une plage de porter particulière.This measurement makes it possible to precisely characterize the watch. The measurement makes it possible to calculate and simulate daytime walking according to different types of wear, which makes it possible to certify a watch for a particular wear range.

Il est possible d'enregistrer la signature acoustique du mouvement durant tout le test, et de contrôler d'autres propriétés du mouvement ou de la montre, comme le fonctionnement du quantième (passage de la date à minuit) ou de toute autre fonction.It is possible to record the acoustic signature of the movement throughout the test, and to check other properties of the movement or of the watch, such as the operation of the date (passage of the date at midnight) or any other function.

La mesure est avantageusement combinée à des changements de température, afin de définir le coefficient C, ou/et ou de simuler un porter particulier, par exemple 16 heures à 33C° puis 8 heures à 23C°.The measurement is advantageously combined with changes in temperature, in order to define the coefficient C, or / and or to simulate a particular wear, for example 16 hours at 33C ° then 8 hours at 23C °.

De la même façon, la mesure est avantageusement combinée à des variations de la pression atmosphérique, ou d'autres paramètres physiques de l'environnement de la montre, comme le degré d'hygrométrie, ou les champs magnétiques, ou autre. A cet effet, on utilise des moyens générateurs d'environnement 80, lesquels sont agencés pour imposer des conditions physiques particulières, là où se déroule la mesure : température, hygrométrie, champ magnétique, ou autre.Likewise, the measurement is advantageously combined with variations in atmospheric pressure, or other physical parameters of the environment of the watch, such as the degree of hygrometry, or magnetic fields, or the like. For this purpose, environmental generating means 80 are used, which are arranged to impose particular physical conditions, where the measurement takes place: temperature, humidity, magnetic field, or the like.

En somme, cette méthode de mesure permet de caractériser les propriétés chronométriques dans plusieurs positions de la montre pour une durée de mesure relativement courte, et peut s'accompagner de la qualification de la montre dans des conditions physiques particulières ou aux limites prévues pour son fonctionnement, et pour des porters-types particuliers.In short, this measurement method makes it possible to characterize the chronometric properties in several positions of the watch for a measurement period. relatively short, and may be accompanied by the qualification of the watch in particular physical conditions or at the limits provided for its operation, and for particular type wearers.

L'invention concerne un dispositif 1 de contrôle chronométrique de mouvement 2 de montre 3, ou de montre 3. Ce dispositif 1 comporte au moins un réceptacle 4, qui est agencé pour le maintien en toute sécurité, jusqu'à un seuil d'accélération donné, d'au moins un mouvement 2 ou d'une montre 3.The invention relates to a device 1 for chronometric control of the movement 2 of a watch 3, or of a watch 3. This device 1 comprises at least one receptacle 4, which is arranged for maintaining it in complete safety, up to an acceleration threshold. given, at least one movement 2 or a watch 3.

Le dispositif 1 comporte avantageusement mais non limitativement des moyens de manœuvre multi-axes 20, qui sont agencés pour manœuvrer dans l'espace chaque réceptacle 4, et qui sont agencés pour imposer à chaque réceptacle 4 un cycle global comportant au moins un cycle prédéfini quant à sa trajectoire sous le pilotage de moyens de commande 5 comportant une horloge 6 ou reliés à une base de temps externe. On entend ici par « trajectoire » l'ensemble des paramètres de position, d'orientation, de vitesse et d'accélération de chaque réceptacle 4 : la courbe géométrique le long de laquelle se meut chaque réceptacle 4, et, en chaque point de cette courbe géométrique, les angles d'orientation dans l'espace de ce réceptacle 4, et ses vecteurs vitesse et accélération.The device 1 advantageously but without limitation comprises multi-axis maneuvering means 20, which are arranged to maneuver each receptacle 4 in space, and which are arranged to impose on each receptacle 4 an overall cycle comprising at least one predefined cycle as regards to its trajectory under the control of control means 5 comprising a clock 6 or linked to an external time base. By “trajectory” is meant here all the position, orientation, speed and acceleration parameters of each receptacle 4: the geometric curve along which each receptacle 4 moves, and, at each point of this geometric curve, the orientation angles in space of this receptacle 4, and its velocity and acceleration vectors.

Ce cycle prédéfini comporte le passage par tout ou partie des positions normalisées de contrôle chronométrique, de type « COSC Contrôle Officiel Suisse des Chronomètres », ou par les positions requises pour des référentiels analogues : Observatoire Chronométrique de Genève, Observatoire de Besançon, Observatoire de Hambourg, ancien Observatoire Chronométrique de Neuchâtel, ou similaire. Par exemple le cycle prédéfini comporte les six positions de contrôle, deux horizontales HH (A), HB (B), et quatre verticales : VB (C), VG (D), VH (E), VD (F).This predefined cycle involves passing through all or part of the standard chronometric control positions, of the “COSC Swiss Official Chronometer Control” type, or through the positions required for similar reference frames: Geneva Chronometric Observatory, Besançon Observatory, Hamburg Observatory , former Chronometric Observatory of Neuchâtel, or similar. For example, the predefined cycle comprises the six control positions, two horizontal HH (A), HB (B), and four vertical: VB (C), VG (D), VH (E), VD (F).

On comprend que le cycle global peut comporter davantage de mesures chronométriques que les positions statiques traditionnelles, en particulier pour valider la chronométrie du mouvement 2 ou de la montre 3 en dynamique, en mouvement uniforme, uniformément accéléré ou décéléré, ou autre, notamment en mouvement aléatoire. Avantageusement le cycle global comporte aussi l'observation de la chronométrie pendant une phase de stabilisation juste après l'arrêt dans une position statique, l'allure de la variation de marche depuis l'instant d'arrêt jusqu'au moment où la marche est régulière et stabilisée fournit des informations sur le mouvement, propres à celui-ci, pouvant même permettre de distinguer des contrefaçons.It is understood that the overall cycle can include more chronometric measurements than the traditional static positions, in particular to validate the chronometry of the movement 2 or of the watch 3 in dynamics, in uniform movement, uniformly accelerated or decelerated, or other, in particular in movement. random. Advantageously, the overall cycle also comprises the observation of the chronometry during a stabilization phase just after stopping in a static position, the pace of the variation of rate from the moment of stopping until the moment when the rate is stopped. regular and stabilized provides information on the movement, specific to this one, which can even make it possible to distinguish counterfeits.

Les moyens de manœuvre 20 sont agencés pour manœuvrer dans l'espace chaque réceptacle 4, et le dispositif 1 comporte des moyens capteurs de marche 7, qui sont agencés pour l'enregistrement, notamment acoustique ou/et optique, des paramètres de marche de chaque mouvement 2 (ou montre 3) embarqué dans un réceptacle 4 au cours d'un mouvement ou/et d'une accélération. Ces mouvements dans l'espace peuvent être aussi bien angulaires que curvilignes. Plus particulièrement, cet enregistrement est corrélé avec l'enregistrement des paramètres de marche, et des conditions physiques de l'environnement dans lequel se déroule le contrôle chronométrique.The maneuvering means 20 are arranged to maneuver each receptacle 4 in space, and the device 1 comprises rate sensor means 7, which are arranged for recording, in particular acoustically and / or optically, the operating parameters of each movement 2 (or watch 3) on board a receptacle 4 during a movement or / and an acceleration. These movements in space can be angular as well as curvilinear. More particularly, this recording is correlated with the recording of the running parameters, and of the physical conditions of the environment in which the time control takes place.

Le dispositif 1 comporte des moyens de pilotage 10 et des moyens d'analyse 9, qui sont interfacés avec les moyens de commande 5, les moyens capteurs de marche 7, et dans une variante particulière des moyens capteurs d'environnement 8, et qui sont agencés pour évaluer le comportement au porter de chaque mouvement 2 ou respectivement de chaque montre 3, et plus particulièrement pour évaluer la chronométrie de chaque mouvement 2 ou respectivement de chaque montre 3 selon un cycle cinématique et/ou dynamique appliqué à chaque réceptacle 4. De façon particulière, les moyens capteurs de marche 7 sont en relation avec des moyens capteurs d'environnement 8 pour l'enregistrement, qui est corrélé avec ledit enregistrement des paramètres de marche, des conditions physiques de l'environnement dans lequel se déroule le contrôle chronométrique, et les moyens de pilotage 10 et les moyens d'analyse 9 sont interfacés à la fois avec les moyens de commande 5, les moyens capteurs de marche 7, et les moyens capteurs d'environnement 8.The device 1 comprises control means 10 and analysis means 9, which are interfaced with the control means 5, the walking sensor means 7, and in a particular variant of the environmental sensor means 8, and which are arranged to evaluate the wearing behavior of each movement 2 or respectively of each watch 3, and more particularly to evaluate the chronometry of each movement 2 or respectively of each watch 3 according to a kinematic and / or dynamic cycle applied to each receptacle 4. De in particular, the walking sensor means 7 are connected with environmental sensor means 8 for recording, which is correlated with said recording of the walking parameters, of the physical conditions of the environment in which the chronometer control takes place , and the control means 10 and the analysis means 9 are interfaced both with the control means 5, the walking sensor means 7, and the walking means s environmental sensors 8.

De façon propre à l'invention, ces moyens de pilotage 10 et ces moyens d'analyse 9 sont agencés pour évaluer la chronométrie de chaque mouvement 2 ou respectivement de chaque montre 3 selon un cycle cinématique et/ou dynamique appliqué à chaque réceptacle 4 selon différentes configurations alternatives qui peuvent aussi être combinées dans un même cycle global :

  • pendant un mouvement du réceptacle 4 à position variable du centre d'inertie du mouvement 2 ou respectivement de la montre 3 : le mouvement ou la montre bouge;
  • pendant un mouvement angulaire du réceptacle 4 dans une position fixe du centre d'inertie du mouvement 2 ou respectivement de la montre 3 le mouvement ou la montre tourne autour de son centre de gravité ;
  • pendant une phase de stabilisation après l'atteinte d'une position fixe du centre d'inertie dans une position fixe du centre d'inertie du mouvement 2 ou respectivement de la montre 3 et l'annulation de ses vecteurs vitesse linéaire et angulaires et de son accélération et pendant laquelle phase de stabilisation la marche est variable : le mouvement ou la montre est entièrement fixe pendant cette phase de stabilisation ;
  • pendant une phase d'arrêt en position fixe du centre d'inertie du mouvement 2 ou respectivement de la montre 3 et avec des vecteurs vitesse linéaire et angulaires et une accélération tous nuls et dans laquelle phase d'arrêt la marche est stable : le mouvement ou la montre est totalement fixe dans cette phase d'arrêt.
In a manner specific to the invention, these control means 10 and these analysis means 9 are arranged to evaluate the chronometry of each movement 2 or respectively of each watch 3 according to a kinematic and / or dynamic cycle applied to each receptacle 4 according to different alternative configurations which can also be combined in the same overall cycle:
  • during a movement of the receptacle 4 with variable position of the center of inertia of the movement 2 or respectively of the watch 3: the movement or the watch moves;
  • during an angular movement of the receptacle 4 in a fixed position of the center of inertia of the movement 2 or respectively of the watch 3, the movement or the watch rotates around its center of gravity;
  • during a stabilization phase after reaching a fixed position of the center of inertia in a fixed position of the center of inertia of movement 2 or respectively of watch 3 and the cancellation of its linear and angular speed vectors and of its acceleration and during which phase of stabilization the rate is variable: the movement or the watch is entirely fixed during this phase of stabilization;
  • during a stop phase in a fixed position of the center of inertia of movement 2 or respectively of watch 3 and with linear and angular speed vectors and all zero acceleration and in which stop phase, walking is stable: the movement or the watch is completely fixed in this stop phase.

Plus particulièrement, ces moyens de pilotage 10 et d'analyse 9 sont encore agencés pour délivrer un certificat de contrôle dans le cas où toutes les valeurs mesurées satisfont à des tolérances prédéfinies, ou à relancer un processus itératif de reprise de réglage de marche et de test dans le cas contraire.More particularly, these control means 10 and analysis 9 are also designed to issue an inspection certificate in the event that all the measured values meet predefined tolerances, or to restart an iterative process for resuming the running adjustment and test otherwise.

Selon l'invention, les moyens de pilotage 10 comportent un séquenceur 50, qui est agencé pour commander les changements de position chronométrique du mouvement 2, ou respectivement de la montre 3, au sein d'une séquence multi-positions, un changement de position chronométrique après chaque mesure par position, et pour relancer une séquence multi-positions dès l'achèvement de la précédente et dans le respect de la durée totale prédéfinie d'un cycle de plusieurs séquences multi-positions successives.According to the invention, the control means 10 include a sequencer 50, which is arranged to control the changes of chronometric position of the movement 2, or respectively of the watch 3, within a multi-position sequence, a change of position chronometric after each measurement by position, and to restart a multi-position sequence as soon as the previous one is completed and in accordance with the total predefined duration of a cycle of several successive multi-position sequences.

Ce séquenceur 50 est encore agencé pour gérer les durées de stabilisation de la marche Ts, de mesure par position Tp, et de l'intervalle de séquence multi-positions Ti définissant un intervalle élémentaire dans lequel est effectué un contrôle chronométrique dans chacune des positions chronométriques prédéfinies.This sequencer 50 is further designed to manage the duration of stabilization of the rate Ts, of measurement by position Tp, and of the multi-position sequence interval Ti defining an elementary interval in which a chronometric check is carried out in each of the chronometric positions. predefined.

Les durées de stabilisation de la marche Ts sont classiquement de quelques secondes, et notamment mais non limitativement comprises entre 20 secondes et 30 secondes.The gait stabilization times Ts are conventionally a few seconds, and in particular but not limited to between 20 seconds and 30 seconds.

Ces moyens de pilotage 10 comportent des moyens de mémorisation 30, qui sont agencés pour stocker des paramètres de tolérances, de seuils de valeur, ou/et pour stocker des paramètres de durée et de conditions physiques représentatifs de porter-types particuliers, et sont à cet effet avantageusement couplés avec ces moyens capteurs d'environnement 8 et avec des moyens générateurs d'environnement 80, lesquels sont agencés pour imposer des conditions physiques particulières, là où se déroule la mesure : température, hygrométrie, champ magnétique, ou autre.These control means 10 include storage means 30, which are arranged to store parameters of tolerances, value thresholds, or / and to store parameters of duration and physical conditions representative of particular wear-types, and are at this effect advantageously coupled with these environmental sensor means 8 and with environment generating means 80, which are arranged to impose physical conditions particular, where the measurement takes place: temperature, hygrometry, magnetic field, or other.

De façon avantageuse, les moyens de pilotage 10 et les moyens de mémorisation 30 sont agencés pour pondérer la durée passée dans chaque position pour simuler un porter-type particulierAdvantageously, the control means 10 and the storage means 30 are arranged to weight the time spent in each position to simulate a particular type of wearer.

Plus particulièrement, ce dispositif 1 comporte des moyens de mesure optique 90 pour mesurer l'état de certains affichages du mouvement 2, ou respectivement de la montre 3, en corrélation avec l'horloge interne 6, et qui sont avantageusement couplés aux moyens de mémorisation 30.More particularly, this device 1 comprises optical measuring means 90 for measuring the state of certain displays of the movement 2, or respectively of the watch 3, in correlation with the internal clock 6, and which are advantageously coupled to the storage means 30.

Plus particulièrement, ce dispositif 1 comporte des moyens de réglage de marche 11, et les moyens de pilotage 10 sont agencés pour adresser des signaux de commande à des actionneurs 12 que comportent les moyens de réglage de marche 11, pour corriger la marche de moyens d'ajustement que comporte un résonateur du mouvement 2 ou respectivement de la montre 3, avant de procéder à au moins un nouveau cycle prédéfini de test.More particularly, this device 1 comprises rate adjustment means 11, and the control means 10 are arranged to send control signals to actuators 12 included in the rate adjustment means 11, in order to correct the operation of the operating means. adjustment that includes a resonator of movement 2 or respectively of watch 3, before proceeding to at least one new predefined test cycle.

Dans une variante, les moyens de pilotage 10 comportent un afficheur apte à communiquer à un technicien horloger les instructions pour le réglage du résonateur du mouvement 2 ou de la montre 3.In a variant, the control means 10 comprise a display capable of communicating to a watch technician the instructions for adjusting the resonator of the movement 2 or of the watch 3.

Plus particulièrement, les moyens de pilotage 10 sont agencés pour délivrer, quand tous les tests effectués satisfont aux critères chronométriques prédéfinis, un document qui est le certificat de chronométrie du mouvement 2 considéré (ou de la montre 3 selon le cas). Notamment les moyens de pilotage 10 et les moyens d'analyse 9 sont agencés pour délivrer un certificat de contrôle dans le cas où toutes les valeurs mesurées satisfont à des tolérances prédéfinies, ou à relancer un processus itératif de reprise de réglage de marche et de test dans le cas contraire.More particularly, the control means 10 are arranged to deliver, when all the tests carried out satisfy the predefined chronometric criteria, a document which is the chronometry certificate of the movement 2 considered (or of the watch 3 as the case may be). In particular, the control means 10 and the analysis means 9 are designed to issue an inspection certificate in the event that all the measured values meet predefined tolerances, or to restart an iterative process of resuming operating adjustment and testing otherwise.

Plus particulièrement, les moyens de pilotage 10 sont agencés pour imposer au séquenceur des durées particulières de mesure par position Tp, ou/et des durées particulières de séquence multi-positions Ti. Plus particulièrement, les durées particulières de mesure par position Tp sont irrégulières au sein d'une même séquence multi-positions. Plus particulièrement, les durées particulières de séquences multi-positions sont irrégulières au sein du cycle global de contrôle de marche.More particularly, the control means 10 are arranged to impose on the sequencer particular durations of measurement per position Tp, or / and particular durations of multi-position sequence Ti. More particularly, the particular measurement times per position Tp are irregular within the same multi-position sequence. More particularly, the particular durations of multi-position sequences are irregular within the overall rate control cycle.

Dans une variante, les moyens de pilotage 10 comportent des moyens de génération de nombres aléatoires 14 agencés pour générer des durées aléatoires, à l'intérieur de fourchettes prédéfinies, des durées de mesure par position Tp, ou/et des durées de séquence multi-positions Ti, transmises au séquenceur 50.In a variant, the control means 10 comprise means for generating random numbers 14 arranged to generate random durations, within predefined ranges, measurement times per position Tp, or / and multi-position sequence times Ti, transmitted to the sequencer 50.

Plus particulièrement, ces moyens capteurs de marche 7, et les moyens capteurs d'environnement 8 sont agencés pour soumettre le mouvement 2 ou respectivement la montre 3, à des tests complémentaires de validation, prédéfinis ou aléatoires, notamment en relation avec les moyens générateurs d'environnement 80.More particularly, these walking sensor means 7, and the environmental sensor means 8 are arranged to subject the movement 2 or respectively the watch 3, to additional validation tests, predefined or random, in particular in relation to the generator means of environment 80.

Plus particulièrement, et de façon non limitative, les moyens capteurs de marche 7 sont acoustiques, tels qu'un microphone ou similaire, ou sont optiques, tels qu'une caméra.More particularly, and in a nonlimiting manner, the walking sensor means 7 are acoustic, such as a microphone or the like, or are optical, such as a camera.

Dans une variante particulière, les moyens de réglage de marche 11 comportent un manipulateur robotisé, apte à intervenir par vissage d'une vis de raquette, déplacement ou/et rotation d'un piton de spiral, par déformation ou déplacement de goupilles de limitation de la partie active d'un spiral, par action d'un faisceau laser sur un spiral ou sur un balancier, ou similaire.In a particular variant, the rate adjustment means 11 comprise a robotic manipulator, able to intervene by screwing a snowshoe screw, displacement or / and rotation of a hairspring pin, by deformation or displacement of limiting pins. the active part of a hairspring, by the action of a laser beam on a hairspring or on a balance, or the like.

Ainsi l'invention concerne un procédé de contrôle chronométrique d'un mouvement 2 de montre 3, ou d'une montre 3, selon lequel on impose à un réceptacle 4 portant le mouvement 2, ou respectivement la montre 3, des mouvements comportant au moins un cycle prédéfini quant à sa trajectoire sous le pilotage de moyens de commande 5 comportant une horloge 6 ou reliés à une base de temps externe, le cycle comportant le passage par des positions normalisées de contrôle chronométrique. Ce cycle comporte, avec une durée minimale prédéfinie, une pluralité de séquences successives multi-positions, au sein de chacune desquelles on positionne successivement le mouvement 2, ou respectivement la montre 3, dans une des positions normalisées pour une première phase de stabilisation de marche et une deuxième phase de contrôle de marche lors d'une mesure par position. Et on mesure les paramètres de marche du mouvement 2 ou respectivement de la montre 3 dans les positions dans chacune des séquences successives multi-positions. Et on compare les paramètres de marche avec des valeurs de consigne.Thus the invention relates to a chronometric control method of a watch movement 2 3, or of a watch 3, according to which one imposes on a receptacle 4 carrying the movement 2, or respectively the watch 3, movements comprising at least a cycle which is predefined as to its trajectory under the control of control means 5 comprising a clock 6 or linked to an external time base, the cycle comprising the passage through standard chronometric control positions. This cycle comprises, with a predefined minimum duration, a plurality of successive multi-position sequences, within each of which the movement 2, or respectively the watch 3, is positioned successively in one of the standardized positions for a first phase of stabilization of movement. and a second step control phase during a measurement by position. And we measure the walking parameters of movement 2 or respectively of watch 3 in the positions in each of the successive multi-position sequences. And we compare the operating parameters with set values.

Plus particulièrement, on effectue le contrôle chronométrique aussi bien pendant un mouvement du réceptacle 4 à position variable du centre d'inertie du mouvement 2 ou respectivement de la montre 3, pendant un mouvement angulaire du réceptacle 4 dans une position fixe du centre d'inertie du mouvement 2 ou respectivement de la montre 3, pendant une phase de stabilisation après l'atteinte d'une position fixe du centre d'inertie du mouvement 2 ou respectivement de la montre 3 et l'annulation de ses vecteurs vitesse linéaire et angulaires et de son accélération et pendant laquelle phase de stabilisation la marche est variable, et pendant une phase d'arrêt en position fixe du centre d'inertie du mouvement 2 ou respectivement de la montre 3 et avec des vecteurs vitesse linéaire et angulaires et une accélération tous nuls et dans laquelle phase d'arrêt la marche est stable.More particularly, the chronometric control is carried out both during a movement of the receptacle 4 with variable position of the center of inertia of the movement 2 or respectively of the watch 3, during an angular movement of the receptacle 4 in a fixed position of the center of inertia of movement 2 or respectively of watch 3, during a stabilization phase after reaching a fixed position of the center of inertia of movement 2 or respectively of watch 3 and the cancellation of its linear and angular speed vectors and of its acceleration and during which phase of stabilization the rate is variable, and during a phase of stopping in a fixed position of the center of inertia of the movement 2 or respectively of the watch 3 and with linear and angular speed vectors and an acceleration all zero and in which stop phase operation is stable.

Plus particulièrement, on met en œuvre des moyens de pilotage 10 comportant un séquenceur 50, qui est agencé pour commander des changements de position chronométrique du mouvement 2 ou respectivement de la montre 3 au sein d'une séquence multi-positions, après chaque mesure par position, et pour relancer une séquence multi-positions dès l'achèvement de la précédente et dans le respect de la durée totale prédéfinie d'un cycle de plusieurs séquences multi-positions successives, le séquenceur 50 étant encore agencé pour gérer des durées de stabilisation de la marche Ts, des durées de mesure par position Tp, et des durées d'intervalle de séquence multi-positions Ti définissant un intervalle élémentaire pendant lequel on effectue un contrôle chronométrique dans chacune des positions chronométriques prédéfinies.More particularly, control means 10 comprising a sequencer 50 are implemented, which is arranged to control changes in the chronometric position of the movement 2 or respectively of the watch 3 within a multi-position sequence, after each measurement by position, and to restart a multi-position sequence from the completion of the previous one and in compliance with the predefined total duration of a cycle of several successive multi-position sequences, the sequencer 50 being further arranged to manage stabilization times rate Ts, measurement times per position Tp, and multi-position sequence interval durations Ti defining an elementary interval during which a chronometric check is carried out in each of the predefined chronometric positions.

Plus particulièrement, on pondère la durée passée dans chaque position pour simuler un porter type.More particularly, the time spent in each position is weighted to simulate a typical wear.

Dans une mise en œuvre particulière, on délivre un certificat de contrôle dans le cas où toutes les valeurs mesurées satisfont à des tolérances prédéfinies. Dans une mise en œuvre particulière, on relance un processus itératif de reprise de réglage de marche et de test dans le cas contraire.In a particular implementation, an inspection certificate is issued in the event that all of the measured values meet predefined tolerances. In a particular implementation, an iterative process of resuming operating adjustment and testing is restarted in the opposite case.

Plus particulièrement, on mesure la marche du mouvement 2 ou respectivement de la montre 3 pendant une durée totale d'au moins 24 heures, en répétant en continu une séquence de mesure multi-positions, qui comporte, pour une première position, 30 secondes de stabilisation de la marche, 40 minutes de mesure dans la première position, puis changement de position et répétition des opérations de stabilisation de la marche et de mesure, de façon à couvrir les positions normalisées pendant un intervalle élémentaire de durée Ti de 4 heures.More particularly, the rate of movement 2 or respectively of watch 3 is measured for a total duration of at least 24 hours, by continuously repeating a multi-position measurement sequence, which comprises, for a first position, 30 seconds of rate stabilization, 40 minutes of measurement in the first position, then change of position and repetition of the rate stabilization and measurement operations, so as to cover the standardized positions for an elementary interval of duration Ti of 4 hours.

Dans une variante, tous les intervalles élémentaires sont de durée Ti identique.In one variant, all the elementary intervals are of identical duration Ti.

Dans une autre variante, les intervalles élémentaires ont des durées irrégulières.In another variant, the elementary intervals have irregular durations.

Plus particulièrement, on combine le contrôle de la marche avec une mesure de la marche diurne, avec prise d'état de la montre au moins au début et fin de la mesure, par méthode optique.More particularly, the monitoring of the rate is combined with a measurement of the daytime rate, with the state of the watch being taken at least at the start and end of the measurement, by an optical method.

Plus particulièrement, on commande, par la mesure acoustique, le déclenchement de photographies de l'affichage aux instants 0h et 24h.More particularly, the acoustic measurement is used to control the triggering of photographs of the display at instants 0 h and 24 h.

Plus particulièrement, on détermine la réserve de marche de la montre, en combinaison avec des changements de position.More particularly, the power reserve of the watch is determined, in combination with changes in position.

Plus particulièrement, on enregistre la signature acoustique du mouvement 2 ou respectivement de la montre 3 durant tout le test, et en ce qu'on contrôle simultanément le fonctionnement du quantième avec le passage de la date à minuit quand le mouvement 2 ou respectivement la montre 3 en comporte.More particularly, the acoustic signature of the movement 2 or respectively of the watch 3 is recorded throughout the test, and in that the operation of the date is simultaneously checked with the passage of the date at midnight when the movement 2 or respectively the watch 3 has some.

Plus particulièrement, on combine la mesure de marche à des variations de conditions physiques de l'environnement de la montre, qu'on impose par des des moyens générateurs d'environnement 80, agencés pour imposer des conditions particulières de température, ou/et hygrométrie, ou/et champ magnétique.More particularly, the rate measurement is combined with variations in the physical conditions of the environment of the watch, which are imposed by environmental generating means 80, arranged to impose particular conditions of temperature, or / and hygrometry. , or / and magnetic field.

Plus particulièrement, on utilise des moyens capteurs de marche 7 pour l'enregistrement continu ou discontinu des paramètres de marche de chaque mouvement 2, ou respectivement montre 3, embarqué dans un réceptacle 4 qu'on met en mouvement pour faire prendre différentes positions dans l'espace à chaque mouvement 2, ou respectivement à chaque montre 3.More particularly, use is made of gait sensor means 7 for the continuous or discontinuous recording of the gait parameters of each movement 2, or respectively watch 3, on board a receptacle 4 which is set in motion to cause different positions to be taken in the movement. space for each movement 2, or respectively for each watch 3.

Plus particulièrement, on utilise les moyens capteurs de marche 7 en relation avec des moyens capteurs d'environnement 8 pour l'enregistrement continu ou discontinu, corrélé avec l'enregistrement des paramètres de marche, des conditions physiques de l'environnement dans lequel se déroule le contrôle chronométrique, et en ce qu'on met en œuvre des moyens de pilotage 10 et des moyens d'analyse 9 interfacés avec moyens de commande 5, les moyens capteurs de marche 7, et les moyens capteurs d'environnement 8.More particularly, the walking sensor means 7 are used in connection with the environmental sensor means 8 for the continuous or discontinuous recording, correlated with the recording of the walking parameters, of the physical conditions of the environment in which takes place. chronometric control, and in that control means 10 and analysis means 9 interfaced with control means 5, walking sensor means 7, and environmental sensor means 8 are used.

Plus particulièrement, on utilise les moyens de pilotage 10 et les moyens d'analyse 9 interfacés avec les moyens de commande 5 et les moyens capteurs de marche 7, et agencés pour évaluer la chronométrie, selon un type de porter particulier, de chaque mouvement 2 ou respectivement de chaque montre 3, à délivrer un certificat de contrôle dans le cas où toutes les valeurs mesurées satisfont à des tolérances prédéfinies, ou à relancer un processus itératif de reprise de réglage de marche et de test dans le cas contraire.More particularly, use is made of the control means 10 and the analysis means 9 interfaced with the control means 5 and the walking sensor means 7, and arranged to evaluate the chronometry, according to a particular type of wear, of each movement 2. or respectively of each watch 3, to issue an inspection certificate in the event that all the measured values satisfy to predefined tolerances, or to restart an iterative process of resuming the operating adjustment and the test in the opposite case.

Plus particulièrement, on utilise les moyens de pilotage 10 et les moyens d'analyse 9 pour évaluer la chronométrie de chaque mouvement 2 ou respectivement de chaque montre 3 selon un cycle cinématique et/ou dynamique appliqué à chaque réceptacle 4.More particularly, the control means 10 and the analysis means 9 are used to evaluate the chronometry of each movement 2 or respectively of each watch 3 according to a kinematic and / or dynamic cycle applied to each receptacle 4.

Plus particulièrement, on génère un cycle cinématique et/ou dynamique pour simuler un porter particulier, ou selon un cycle aléatoire, ou selon une position dynamique, ou selon une position de stabilisation suite à un changement de position.More particularly, a kinematic and / or dynamic cycle is generated to simulate a particular load, or according to a random cycle, or according to a dynamic position, or according to a stabilization position following a change of position.

Plus particulièrement, on utilise des moyens de pilotage 10 comportant des moyens de génération de nombres aléatoires 14 agencés pour générer des durées aléatoires, à l'intérieur de fourchettes prédéfinies, des durées de mesure par position Tp, ou/et des durées de séquence multi-positions Ti.More particularly, use is made of control means 10 comprising means for generating random numbers 14 arranged to generate random durations, within predefined ranges, measurement durations per position Tp, or / and multi-sequence durations. -positions Ti.

Claims (33)

  1. Device for testing the chronometric precision of a watch (3) movement (2), or a watch (3), wherein said device (1) includes at least one receptacle (4) arranged to hold, up to a given acceleration threshold, at least one movement (2) or one watch (3), and includes manoeuvring means (20) arranged to manoeuvre each said receptacle (4) in space, arranged to impose on each said receptacle (4) an overall cycle that includes at least one cycle with a predefined trajectory under the control of control means (5) including a clock (6) or connected to an external time base, said predefined cycle including passing through standard chronometric test positions, characterized in that said device (1) includes rate sensing means (7) for recording the rate parameters of each movement (2), or respectively watch (3), placed in a said receptacle (4), and said device (1) includes fine control means (10) and analysis means (9) interfaced with said control means (5) and said rate sensing means (7), and arranged to evaluate the chronometric precision of each said movement (2) or respectively of each said watch (3), in a kinematic and/or dynamic cycle applied to each said receptacle (4), during a motion of said receptacle (4) wherein the centre of inertia of said movement (2), or respectively of said watch (3), has a variable position, during an angular motion of said receptacle (4) wherein the centre of inertia of said movement (2), or respectively of said watch (3), has a fixed position, during a stabilisation phase once the centre of inertia of said movement (2), or respectively of said watch (3), has reached a fixed position and after its linear and angular speed vectors and its acceleration reach zero, and during which stabilisation phase the rate is variable, and during a stop phase wherein the centre of inertia of said movement (2) or respectively of said watch (3) is in a fixed position and wherein the linear and angular speed vectors and acceleration are all zero, and in which stop phase the rate is stable, and in that said fine control means (10) include a sequencer (50), which is arranged to control the changes of chronometric test position of said movement (2), or respectively of said watch (3), in a multi-position sequence, after each measurement per position, and to start another multi-position sequence as soon as the preceding sequence finishes and which observes the predefined total duration of one cycle of several successive multi-position sequences, said sequencer (50) also being arranged to manage the durations of rate stabilisation (Ts), the durations of measurement per position (Tp), and the durations of multi-position sequence intervals (Ti) defining a basic interval in which a chronometric test is performed in each of the predefined chronometric positions.
  2. Device (1) according to claim 1, characterized in that said fine control means (10) are arranged to impose on said sequencer (50) specific measurement durations per position (Tp), and/or specific multi-position sequence durations (Ti).
  3. Device (1) according to claim 1 or 2, characterized in that said fine control means (10) are arranged to impose on said sequencer (50) specific measurement durations per position (Tp) which are irregular within the same multi-position sequence.
  4. Device (1) according to any of claims 1 to 3, characterized in that said fine control means (10) are arranged to impose on said sequencer (50) specific multi-position sequence durations (Ti) which are irregular within the overall rate test cycle.
  5. Device (1) according to any of claims 1 to 4, characterized in that said fine control means (10) include storage means (30), which are arranged to store tolerance and threshold value parameters and/or to store duration parameters and physical condition parameters representative of specific types of wear.
  6. Device (1) according to claim 5, characterized in that said fine control means (10) and said storage means (30) are arranged to weight the time spent in each position in order to simulate a specific type of wear.
  7. Device (1) according to any of claims 1 to 6, characterized in that said rate sensing means (7) are linked to environment sensing means (8) to record, in correlation with said recording of rate parameters, the physical conditions of the environment in which said chronometric testing is carried out, and in that said fine control means (10) and said analysis means (9) are interfaced with said control means (5), said rate sensing means (7) and said environment sensing means (8).
  8. Device (1) according to claim 7, characterized in that said storage means (30) are coupled with said environment sensing means (8) and with environment generating means (80), which are arranged to impose specific physical conditions where the measurement is performed.
  9. Device (1) according to any of claims 1 to 8, characterized in that said device (1) includes optical measuring means (90) arranged to measure the state of certain displays of said movement (2), or respectively of said watch (3), in correlation with said internal clock (6).
  10. Device (1) according to claim 9 and to claim 5 or 6, characterized in that said optical measuring means (90) are coupled to said storage means (30).
  11. Device (1) according to any of claims 1 to 10, characterized in that said device (1) includes rate adjustment means (11), and in that said fine control means (10) are arranged to send control signals to actuators (12) comprised in said rate adjustment means (11), to correct the operation of adjustment means comprised in a resonator of said movement (2) or respectively of said watch (3), before carrying out at least one new predefined test cycle.
  12. Device (1) according to any of claims 1 to 11, characterized in that said rate sensing means (7) and said environment sensing means (8) are arranged to subject said movement (2), or respectively said watch (3), to predefined, random, additional validation tests.
  13. Device (1) according to any of claims 1 to 12, characterized in that said fine control means (10) include random number generating means (14) arranged to generate random durations, within predefined ranges, for the measurement durations per position (Tp, and)/or multi-position sequence durations (Ti), transmitted to said sequencer (50).
  14. Device (1) according to any of claims 1 to 13, characterized in that said fine control means (10) and analysis means (9) are arranged to issue a certificate of inspection in the event that all the measured values meet predetermined tolerances, or otherwise to start another iterative process to resume rate adjustment and testing.
  15. Method for testing the chronometric precision of a watch (3) movement (2), or of a watch (3), characterized in that motions are imposed on a receptacle (4) carrying said movement (2), or respectively said watch (3), in an overall cycle including at least one cycle with a predefined trajectory under the control of control means (5) including a clock (6) or connected to an external time base, wherein said predefined cycle includes passing through standard chronometric test positions, in that said overall cycle includes, with a predefined minimum duration, a plurality of successive multi-position sequences, in each of which said movement (2), or respectively said watch (3), is positioned in succession in one of said standard positions for a first, rate stabilisation phase and a second, rate testing phase in one measurement per position, and in that the rate parameters of said movement (2), or respectively of said watch (3), are measured in said positions in each of said successive multi-position sequences, and in that said rate parameters are compared to desired values.
  16. Chronometric testing method according to claim 15, characterized in that the chronometric testing is performed during a motion of said receptacle (4) wherein the centre of inertia of said movement (2), or respectively of said watch (3) is in a variable position, during an angular motion of said receptacle (4) wherein the centre of inertia of said movement (2) or respectively of said watch (3) is in a fixed position, during a stabilisation phase once the centre of inertia of said movement (2), or respectively of said watch (3), has reached a fixed position and after its linear and angular speed vectors and its acceleration reach zero, and during which stabilisation phase the rate is variable, and during a stop phase wherein the centre of inertia of said movement (2), or respectively of said watch (3), is in a fixed position and wherein the linear and angular speed vectors and acceleration are all zero, and in which stop phase the rate is stable.
  17. Chronometric testing method according to claim 15 or 16, characterized in that fine control means (10) are implemented, including a sequencer (50), which is arranged to control the changes of chronometric test position of said movement (2), or respectively of said watch (3), in a multi-position sequence after each measurement per position, and to start another multi-position sequence as soon as the preceding sequence finishes and which observes the predefined total duration of one cycle of several successive multi-position sequences, said sequencer (50) also being arranged to manage the rate stabilisation durations (Ts), durations of measurement per position (Tp), and durations of multi-position sequence intervals (Ti) defining a basic interval in which a chronometric test is performed in each of the predefined chronometric positions.
  18. Chronometric testing method according to any of claims 15 to 17, characterized in that the time spent in each position is weighted to simulate a type of wear.
  19. Chronometric testing method according to any of claims 15 to 18, characterized in that a certificate of inspection is issued in the event that all the measured values meet predetermined tolerances, or in that otherwise another iterative process is started to resume rate adjustment and testing.
  20. Chronometric testing method according to any of claims 15 to 19, characterized in that the rate of said movement (2), or respectively of said watch (3), is measured for a total duration of 24 hours, by continuously repeating a said multi-position measuring sequence, which includes, for a first position, 30 seconds of rate stabilisation, 40 minutes of measurement in the first position, then a change of position and the rate stabilising and measuring operations are repeated, so as to cover said standard positions during a basic interval having a 4 hour duration (Ti).
  21. Chronometric testing method according to claim 17 or a claim dependent of claim 17, characterized in that said basic intervals all have an identical duration (Ti).
  22. Chronometric testing method according to claim 17, characterized in that said basic intervals have irregular durations (Ti).
  23. Chronometric testing method according to any of claims 15 to 22, characterized in that rate testing is combined with a measurement of the daily rate, observing the state of the watch at least at the start and the end of the measurement, using an optical method.
  24. Chronometric testing method according to claim 23, characterized in that the acoustic measurement is used to take photographs of the display at instants 0h and 24h.
  25. Chronometric testing method according to any of claims 15 to 24, characterized in that the power reserve of the watch is determined in combination with position changes.
  26. Chronometric testing method according to any of claims 15 to 25, characterized in that the acoustic signature of said movement (2), or respectively of said watch (3), is recorded throughout the test, and the working of the calendar mechanism is simultaneously tested, with the change of date at midnight, when said movement (2), or respectively said watch (3), includes such a mechanism.
  27. Chronometric testing method according to any of claims 15 to 26, characterized in that the rate measurement is combined with variations in the physical conditions of the environment of the watch, which are imposed by environment generating means (80), arranged to impose specific temperature and/or humidity and/or magnetic field conditions.
  28. Chronometric testing method according to any of claims 15 to 27, characterized in that rate sensing means (7) are used to continuously or discontinuously record the rate parameters of each movement (2), or respectively watch (3), placed in a receptacle (4), which is set in motion to make each movement (2), or respectively each watch (3), take different positions in space.
  29. Chronometric testing method according to claim 28, characterized in that said rate sensing means (7) are used, together with environment sensing means (8), to continuously or discontinuously record, in correlation with said recording of rate parameters, the physical conditions of the environment in which said chronometric testing is carried out, and in that fine control means (10) and analysis means (9) are implemented, interfaced with said control means (5), said rate sensing means (7) and said environment sensing means (8).
  30. Chronometric testing method according to claim 29, characterized in that said fine control means (10) and said analysis means (9) are used, interfaced with said control means (5) and said rate sensing means (7), and arranged to evaluate the chronometric precision, according to a specific type of wear, of each movement (2), or respectively of each watch (3), to issue a certificate of inspection in the event that all the measured values meet predetermined tolerances, or otherwise to start another iterative process to resume rate adjustment and testing.
  31. Chronometric testing method according to claim 29 or 30, characterized in that said fine control means (10) and said analysis means (9) are used to evaluate the chronometric precision of each said movement (2), or respectively of each said watch (3), in a kinematic and/or dynamic cycle applied to each said receptacle (4).
  32. Chronometric testing method according to claim 31, characterized in that a said kinematic and/or dynamic cycle is generated to simulate a specific type of wear, either in a random cycle, or in a dynamic position, or in a stabilisation position following a change of position.
  33. Chronometric testing method according to claims 17 and 29, characterized in that said fine control means (10) include random number generating means (14) arranged to generate random durations, within predefined ranges, for the durations of measurement per position (Tp), and/or multi-position sequence durations (Ti).
EP17201862.4A 2017-11-15 2017-11-15 Chronometric monitoring Active EP3486734B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17201862.4A EP3486734B1 (en) 2017-11-15 2017-11-15 Chronometric monitoring
US16/181,571 US11003141B2 (en) 2017-11-15 2018-11-06 Chronometric testing device
JP2018211115A JP6740318B2 (en) 2017-11-15 2018-11-09 Chronometer inspection device
CN201811361044.1A CN109782571B (en) 2017-11-15 2018-11-15 Timing test equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17201862.4A EP3486734B1 (en) 2017-11-15 2017-11-15 Chronometric monitoring

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EP3486734B1 true EP3486734B1 (en) 2020-09-02

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CH713822A2 (en) * 2017-05-29 2018-11-30 Swatch Group Res & Dev Ltd Apparatus and method for gait adjustment and state correction of a watch
EP3650954A1 (en) * 2018-11-09 2020-05-13 Montres Breguet S.A. Governor for a watch
EP3832400B1 (en) * 2019-12-04 2022-06-22 ETA SA Manufacture Horlogère Suisse Device and method for measuring the play of a timepiece element
CN111025883B (en) * 2020-01-02 2021-07-09 天津海鸥表业集团有限公司 Core aging test method
EP3885844A1 (en) 2020-03-27 2021-09-29 Nivarox-FAR S.A. Clamp for a timepiece setting machine
EP3885845B1 (en) 2020-03-27 2022-09-14 Nivarox-FAR S.A. Receptacle for timepiece assembly
EP3885846A1 (en) * 2020-03-27 2021-09-29 Nivarox-FAR S.A. Timepiece adjusting machine and method for adjusting
CH717688A1 (en) * 2020-07-27 2022-01-31 Metallo Tests Sa System, device and method for controlling the operation of a functional assembly of a timepiece.
CN118369623A (en) * 2021-10-20 2024-07-19 劳力士有限公司 Method for determining a reference value and method for setting a reference value

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JP6740318B2 (en) 2020-08-12
US20190146420A1 (en) 2019-05-16
JP2019090804A (en) 2019-06-13
CN109782571B (en) 2020-10-23
CN109782571A (en) 2019-05-21
EP3486734A1 (en) 2019-05-22
US11003141B2 (en) 2021-05-11

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