EP3667435B1 - System for adjusting the position of a first toothed moving part relative to a support on which the first toothed moving part is pivotably mounted, and timepiece comprising such a system - Google Patents

System for adjusting the position of a first toothed moving part relative to a support on which the first toothed moving part is pivotably mounted, and timepiece comprising such a system Download PDF

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Publication number
EP3667435B1
EP3667435B1 EP18211344.9A EP18211344A EP3667435B1 EP 3667435 B1 EP3667435 B1 EP 3667435B1 EP 18211344 A EP18211344 A EP 18211344A EP 3667435 B1 EP3667435 B1 EP 3667435B1
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EP
European Patent Office
Prior art keywords
date
wheel
pinion
units
indicator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18211344.9A
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German (de)
French (fr)
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EP3667435A1 (en
Inventor
Daniel Matteazzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Montres Breguet SA
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Montres Breguet SA
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Filing date
Publication date
Application filed by Montres Breguet SA filed Critical Montres Breguet SA
Priority to EP18211344.9A priority Critical patent/EP3667435B1/en
Priority to US16/687,831 priority patent/US11550264B2/en
Priority to JP2019215210A priority patent/JP6831439B2/en
Priority to CN201911260246.1A priority patent/CN111290232B/en
Publication of EP3667435A1 publication Critical patent/EP3667435A1/en
Application granted granted Critical
Publication of EP3667435B1 publication Critical patent/EP3667435B1/en
Priority to US18/059,663 priority patent/US11899402B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/25366—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement manually corrected at the end of months having less than 31 days
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears

Definitions

  • the present invention relates to a system for adjusting the position of a first toothed mobile relative to a support on which the first toothed mobile is pivotally mounted.
  • the present invention relates to a system for adjusting the angular position of a pinion carried by a wheel with which it forms a mobile.
  • the present invention also relates to a timepiece comprising such an adjustment system.
  • a conventional date display mechanism for a timepiece such as a wristwatch essentially comprises a date ring on the periphery of which are transferred the date indications from “1” to “31”. This date ring advances one step per day. At the end of months with less than 31 days, the owner of the watch must advance the date ring by the date indication "28" or by the date indication "29” in the event of a leap year until 'to the date indication "1" when it is in the month of February, and from the date indication "30" until the date indication "1" for the other months of the year having less of 31 days.
  • Date display mechanisms that require owner intervention at the end of every month less than 31 days are called simple date display mechanisms.
  • the display mechanisms of that require owner intervention only once a year, when February changes to March, are called semi-perpetual date display mechanisms.
  • the date display mechanisms which spontaneously switch from the date indication of the last day of a month of less than 31 days to the date indication of the first day of the following month, including leap years are called perpetual date display mechanisms.
  • the date display mechanisms which comprise a single ring around the periphery of which are distributed the date indications from “1” to “31” have the advantage of comprising a limited number of parts. They are therefore more economical and easier to integrate into a clockwork movement of a mechanical or electromechanical watch. On the other hand, there is only one angular sector of a little less than 12° to reproduce each of the 31 date indications on the date ring. The size of the date indications is therefore necessarily limited by the dimensions of the date ring, which can make these date indications difficult to read.
  • date display mechanisms whose display member is a ring on which the thirty-one date indications are shown, there are also date display mechanisms known as “big date” designed to equip mechanical or electromechanical timepieces. These large date calendar display mechanisms are so called because they allow the date indication to be displayed on a larger scale, which makes it easier to read the date and brings an undeniable plus to the aesthetics of the piece. watchmaking equipped with such a mechanism.
  • Large date date display mechanisms conventionally comprise a first date indicator on which are transferred the indications of the date units from “0” to “9”. These 10 digits are reproduced on the first date indicator according to sequences which depend on the mode of operation of the large date display mechanism considered. These date display mechanisms are completed by a second date indicator on which are reproduced the indications of the tens of the date from “0” to “3”.
  • a first date indicator on which are transferred the indications of the date units from “0” to “9”.
  • These 10 digits are reproduced on the first date indicator according to sequences which depend on the mode of operation of the large date display mechanism considered.
  • These date display mechanisms are completed by a second date indicator on which are reproduced the indications of the tens of the date from “0” to “3”.
  • the first date indicator bears only the indications of the date units and the second date indicator only the indications of the tens of the date, there is more room to reproduce these indications which can therefore be of larger size. Reading a large date date indicator device is therefore easier and the appearance of a timepiece equipped with such a date indicator device is greatly improved.
  • the date display mechanisms of the “big date” type nevertheless pose a problem when changing from “31” of a given month to “01” of the following month.
  • the indication of the date unit "1" which is used to compose the date indication "31” is the same as the indication of the date unit "1” with which composed the date indication “01”. Consequently, during the passage from the date indication "31” to the date indication "01", the indication of the date unit "1" must remain unchanged, while the indication of the tens of the date changes from the value "3" to the value "0".
  • the first date indicator on which the indications of the date units are transferred must remain stationary. To achieve this objective, it is necessary to prevent the clock movement which, in normal times, ensures the daily advance of the large date display mechanism, from driving the first indicator of date when changing from the last day of a 31-day month to the 1st day of the following month.
  • the solution usually proposed to solve this problem consists in depriving one of the wheels which is located in the kinematic chain between the output of the clockwork movement and the date indicator which bears the indications of the date units by at least a tooth so that, when changing from "31" to "01", this wheel, although driven by the clockwork movement, is unable in turn to drive the pinion with which it is in mesh and which , too, takes part in driving the date units indicator.
  • the pinion remains immobile during this period, the kinematic connection between the clock movement and the first date indicator which bears the date unit indications is interrupted, and the date unit indication "1" remains unchanged.
  • the document EP 3 147 728 A1 discloses a system for adjusting the angular position of a toothed wheel mounted with respect to an axis on which the toothed wheel is pivotally mounted, the adjustment system comprising a positioning lever making it possible to act on an angular position of the wheel toothed, so as to adjust the angular position of the toothed wheel with respect to the axis.
  • the object of the present invention is to solve the problem set out above by providing a mechanism allowing adjustment of the angular position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotally mounted.
  • the present invention relates to a mechanism for adjusting the angular position of a pinion relative to a wheel with which the pinion forms a mobile.
  • the present invention discloses a system for adjusting the angular position of a pinion relative to a wheel on which the pinion is pivotally mounted, the adjustment system comprising an adjustment member (8) as well as a wheel (60) on which a pinion (56) is pivotally mounted by friction to form a wheel set, the adjustment member (8), pivotally mounted on the wheel (60) being in engagement with the pinion (56) and allowing to pivot this pinion (56) so as to adjust an angular position of the pinion (56) relative to the wheel (60).
  • the adjusting member is a toothed wheel set whose angular position is adjustable and which engages with the first toothed wheel set whose angular position is to be adjusted.
  • the present invention also relates to a timepiece which comprises an adjustment member according to the invention.
  • the present invention provides a system which makes it possible to precisely adjust the angular position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotally mounted. It is thus possible to guarantee optimum meshing between the first mobile and a second toothed mobile with which the first toothed mobile meshes and, consequently, the correct positioning of all the mobiles which, in a kinematic chain in which the first and second mobiles are included, are arranged upstream and downstream of the first, respectively of the second mobile.
  • the present invention teaches the use of an adjustment member of the type of a key whose angular position is adjustable for example by means of a screwdriver. This adjustment member, pivotally mounted on the support which carries the first mobile or on a separate support, is in engagement with the first mobile, so that by pivoting the adjustment member, it is possible to adjust the angular position of this first mobile.
  • the present invention also relates to a large date calendar display mechanism driven via a kinematic chain by a clockwork movement of a timepiece equipped with this large date calendar display mechanism, this large date calendar comprising a first date indicator on which are reported the indications of the date units from “0" to "9", and a second date indicator on which are reported the indications of the tens of the date from “0" to “3", all the date indications from "01" to "31” that can be obtained by combining the indications of the date units "0" to "9” carried by the first date indicator with the tens of date indications "0" to “3” carried by the second date indicator, the first date indicator remaining stationary for a period of 24 hours which separates the passing of the last day of a month from 31 days to the first day of the following month, the kinematic chain comprising a wheel continuously engaged with the clockwork and which has a perimeter provided with teeth via which the wheel meshes with a pinion which itself takes part in driving the first indicator of the date units
  • a double jumper is pivotally mounted around an axis and comprises, at a first end, a first beak by which it engages with a toothing of the first date indicator and , at a second end, a second beak by which it engages with a toothing of an intermediate pinion, the jumper double being held elastically in engagement with the first date indicator and with the pinion.
  • the present invention provides a large date date display mechanism in which the position of a pinion which participates in driving the indicator of the date units is adjusted with precision, so as to guarantee a optimal meshing between this drive pinion of the units and the intermediate wheel with which this pinion is in mesh.
  • the drive pinion of the units is decoupled from the clockwork movement so that the indicator of the date units remains stationary during this period.
  • the marking "1" carried by the date units indicator is used both to compose the date indication "31” at the end of a month of 31 days, and to compose the date indication “01” at the beginning of the following month. It is therefore essential for the indicator of the date units to remain stationary during this lapse of time so that the date indication which appears through an aperture provided in a dial of the timepiece is accurate. As a result, it is necessary to decouple the drive pinion from the units so that the clock movement which operates permanently cannot drive the indicator of the date units.
  • a double jumper is provided in engagement at one of its ends with a toothing of the drive pinion of the units.
  • the double jumper meshes with a toothing of the date unit indicator in order to permanently ensure the correct positioning of the date unit indication in the aperture drilled in the dial of the piece. watchmaking.
  • the double jumper is pivotally articulated, it is disengaged from its engagement with the drive pinion of the units when it is pushed back by the toothing of the first date indicator, and vice versa.
  • the present invention proceeds from the general inventive idea which consists in guaranteeing precise angular positioning between a first toothed wheel set and a support on which the first toothed wheel set is rotatably mounted in order to guarantee optimal meshing between this first toothed wheel set and a second wheel set. toothed with which the first toothed mobile is engaged.
  • the present invention teaches precisely adjusting the angular position of the first toothed wheel set relative to the support on which the first toothed wheel set is mounted.
  • an adjusting member is provided, the position of which can be adjusted by means of a tool such as a screwdriver and which meshes with the first toothed wheel set.
  • the present invention finds its interest in particular, but not exclusively, in a large date calendar display mechanism in which, in order to be able to guarantee the correct operation of this date display mechanism, it is necessary, when passing from the last day of a month of 31 days to the first day of the following month, to interrupt the mechanical connection between the clock movement and the date unit indicator. During this period of time, however, an intermediate pinion is no longer engaged with the drive wheel which drives it for the rest of the time. The indexing of the angular position of this intermediate pinion is therefore no longer ensured.
  • the present invention provides for finely adjusting the angular position of a wheel set included in the kinematic chain to which the intermediate pinion belongs, this with the aim of guaranteeing optimal meshing between the different mobiles of this kinematic chain.
  • the present invention will be described in connection with a date display mechanism of the "big date” type in which the problem of adjusting the angular position of a pinion relative to a wheel with which the pinion meshes arises.
  • a date display mechanism of the "big date” type in which the problem of adjusting the angular position of a pinion relative to a wheel with which the pinion meshes arises.
  • the adjustment system according to the invention of the angular position of a first mobile relative to another mobile with which the first mobile meshes can be used in any type of watch mechanism in which the problem arises of the correct angular positioning of one mobile relative to another.
  • the adjustment system 1 comprises a support 2 on which a first toothed wheel set 4 is rotatably mounted. This first toothed wheel 4 meshes with a second toothed wheel 6.
  • One of the aims of the invention is to be able to precisely adjust the angular position of the first toothed wheel 4 with respect to the second toothed wheel 6 in order to guarantee optimum meshing between the two toothed mobiles 4 and 6.
  • the adjustment system 1 according to the invention comprises an adjustment member 8 which is pivotally mounted on the support 2.
  • the adjusting member 8 can be mounted on a support other than that on which the first toothed mobile 4 is mounted.
  • This adjusting member 8 comprises a toothed sector 10 by which it meshes with the first toothed mobile 4. by pivoting this adjustment member 8 in one direction or the other, for example by means of a screwdriver, it is possible to finely adjust the position of the first toothed wheel set 4 with respect to the second toothed wheel set 6.
  • the adjustment system 1 can be integrated into a large date display mechanism 12 equipping (see picture 2 ) a timepiece 14 such as a wristwatch.
  • This timepiece 14 comprises a dial 16 in which is formed an aperture 18 through which a large date indication 20 is visible.
  • the large date display mechanism 12 comprises a central reference 22 which is conventionally attached to an hour wheel driven by a timer of a clock movement (not shown). This return to the center 22 meshes with a cam drive wheel 24 which is driven at the rate of one revolution per day. This cam drive wheel 24 in turn drives a cam wheel 26 to which a cam 28 is fixed.
  • the cam drive wheel 24 and the cam wheel 26 are kinematically linked together by means of a pin 30 driven into the cam wheel 26 and which passes freely through an oblong hole 32 made in the cam drive wheel 24 ( see figure 6 ).
  • the cam driving wheel 24 rotates, it drives the cam wheel 26 thanks to the pin 30 which abuts against an inner edge 32a of the oblong hole 32.
  • the cam 28 has a profile 28a in a place of which a recess 28b is provided.
  • a trigger rocker 34 elastically constrained by a spring 36, comprises a beak 38 by which it follows the profile 28a of the cam 28.
  • the trigger rocker 34 falls along the step 28b of the profile 28a of the cam 28 and causes the instantaneous pivoting of the cam wheel 26 by an angle which is defined by the step 28b of the profile 28a of the cam 28. It will be noted that the dimensions of the oblong hole 32 are sufficient to allow the cam wheel 26 to perform its instantaneous pivoting movement without being hindered by the pin 30.
  • the cam wheel 26 drives a date driving wheel 40 which carries a finger 42 by which the date driving wheel 40 controls, once a day, the advance of a wheel of thirty-one teeth 44 of a no see figure 4 ). Furthermore, a programming wheel 46 is fixed on the thirty-one-tooth wheel 44. The thirty-one-tooth wheel 44 in turn meshes with a driving wheel 48 itself in engagement with an intermediate pinion. 50 of an intermediate wheel set 52. Finally, an intermediate wheel 54 of the intermediate wheel set 52 meshes with a unit drive pinion 56 of a unit drive wheel set 58 of which a unit drive wheel 60 drives a date units indicator.
  • this date unit indicator is in the form of a ring 62.
  • This unit indicator ring 62 bears the indications "0", “1", “2”, “3”,”4",”5",”6”,”7”,”8” and "9" which correspond to the indications of the units of the date and advance at the rate of one step per day, except when passing the "31" of one month to "1" of the following month.
  • the programming wheel 46 is provided with four teeth 46a, 46b, 46c and 46d by which this programming wheel 46 drives by one step every 10 days a star with four teeth 64 on which is fixed a tens of the date indicator.
  • this tens of date indicator is designed in the form of a disc 66.
  • the tens indicator disc 66 bears the indications “0”, “1”, “2” and “3” which correspond to the tens indications of the date.
  • the units indicator ring 62 advances one step per day, except when changing from the "31" of one month to the "1" of the next month. During this passage, the unit indicator ring 62 must remain stationary. Indeed, the marking "1" carried by the date units indicator is used both to compose the date indication "31" at the end of a month of 31 days, and to compose the indication of date "01" at the beginning of the following month. It is therefore essential that the unit indicator ring 62 remains stationary during this period of time so that the date indication which appears through the window 18 made in the dial 16 of the timepiece 14 is accurate.
  • the drive pinion of the units 56 which plays the role of the first toothed mobile whose angular position is to be adjusted is mounted by friction on the drive wheel of the units 60 which plays the role of support.
  • the drive pinion of the units 56 comprises an axis 56a by which it is mounted friction between two parallel arms 60a and 60b which extend substantially along a diameter of the driving wheel of the units 60.
  • the adjustment system 1 according to the invention is completed by an adjusting member 72 pivotally mounted on the driving wheel of the units 60.
  • This adjusting member 72 comprises a toothed sector 74 by which it meshes with the teeth of the drive pinion of the units 56 (see figure 7B ).
  • By rotating the adjusting member 72 for example by means of a screwdriver, in one direction or the other, it is possible to precisely adjust the angular position of the driving pinion of the units 56, so that this driving pinion of the units 56 meshes optimally with the intermediate wheel 54 which drives it.
  • the frictional forces present between the drive pinion of the units 56 and the drive wheel of the units 60 are sufficiently great for the drive pinion of the units 56 to be able to drive the drive wheel of the units 60 in rotation when it is itself driven in rotation.
  • the units drive wheel 60 drives the units indicator ring 62 by meshing with the internal toothing 68 of this units indicator ring 62.
  • This double jumper 76 is provided with a first beak 76a by which it engages with the toothing 70 of the intermediate pinion 50, and with a second beak 76b by which it engages with an internal toothing 78 of the indicator ring of the units 62.
  • the double jumper 76 is held elastically against the toothing 70 of the intermediate pinion 50 and against the internal toothing 78 of the indicator ring of the units 62 by a spring 80.
  • the double jumper 76 pivots around its center of pivot O and its beak 76a disappears while passing from the hollow between two consecutive teeth of the toothing 70 of this intermediate pinion 50 to the next trough.
  • the second beak 76b of the double jumper 76 emerges from the hollow between the two teeth of the internal toothing 78 of the unit indicator ring 62 and falls into the next hollow.
  • the geometry of the double jumper 76 and the positioning of its center of pivot O are such that when the double jumper 76 pivots, it simultaneously disengages from the toothing 70 of the intermediate pinion 50 and from the internal toothing 78 of the unit indicator ring. 62.
  • the intermediate pinion 50 although not being in taken with the drive wheel 48, is held in position by the beak 76a of the double jumper 76, so that there is no risk that the date indication "1" is not properly centered in the aperture 18 provided in dial 16 of timepiece 14.
  • the intermediate pinion 50 belongs to the intermediate mobile 52 with an intermediate wheel 54 to which it is coupled in rotation.
  • This intermediate wheel 54 in turn meshes with a unit drive pinion 56 of a unit drive mobile 58 of the unit indicator ring 62.
  • This unit drive pinion 56 is rotationally coupled with the unit drive wheel 60 which drives the units indicator ring 62 by meshing with the internal toothing 78 of this units indicator ring 62.
  • the present invention is not limited to the embodiment which has just been described and that various simple modifications and variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined. by the appended claims. It will be noted in particular that the number of teeth of the toothing 68 of the driving wheel 48 can be different from thirty-one teeth and that the number of omitted teeth can be different from two, for example equal to one or three.

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne un système de réglage de la position d'un premier mobile denté par rapport à un support sur lequel le premier mobile denté est monté à pivotement. En particulier, la présente invention concerne un système de réglage de la position angulaire d'un pignon porté par une roue avec laquelle il forme un mobile. La présente invention concerne également une pièce d'horlogerie comprenant un tel système de réglage.The present invention relates to a system for adjusting the position of a first toothed mobile relative to a support on which the first toothed mobile is pivotally mounted. In particular, the present invention relates to a system for adjusting the angular position of a pinion carried by a wheel with which it forms a mobile. The present invention also relates to a timepiece comprising such an adjustment system.

Arrière-plan technologique de l'inventionTechnological background of the invention

Un mécanisme d'affichage de date classique pour une pièce d'horlogerie telle qu'une montre-bracelet comprend essentiellement un anneau de quantième sur le pourtour duquel sont reportées les indications de date de « 1 » à « 31 ». Cet anneau de quantième avance d'un pas par jour. A la fin des mois de moins de 31 jours, le propriétaire de la montre doit faire avancer l'anneau de quantième de l'indication de date « 28 » ou de l'indication de date « 29 » en cas d'année bissextile jusqu'à l'indication de date « 1 » lorsqu'il est au mois de février, et de l'indication de date « 30 » jusqu'à l'indication de date « 1 » pour les autres mois de l'année ayant moins de 31 jours.A conventional date display mechanism for a timepiece such as a wristwatch essentially comprises a date ring on the periphery of which are transferred the date indications from “1” to “31”. This date ring advances one step per day. At the end of months with less than 31 days, the owner of the watch must advance the date ring by the date indication "28" or by the date indication "29" in the event of a leap year until 'to the date indication "1" when it is in the month of February, and from the date indication "30" until the date indication "1" for the other months of the year having less of 31 days.

Les mécanismes d'affichage de date qui nécessitent une intervention du propriétaire à la fin de chaque mois de moins de 31 jours sont appelés mécanismes d'affichage de date simples. Les mécanismes d'affichage de date qui ne nécessitent une intervention du propriétaire qu'une fois par an, lors du passage du mois de février au mois de mars, sont appelés mécanismes d'affichage de date semi-perpétuels. Enfin, les mécanismes d'affichage de date qui passent spontanément de l'indication de date du dernier jour d'un mois de moins de 31 jours à l'indication de date du premier jour du mois suivant, et ce y compris les années bissextiles, sont appelés mécanismes d'affichage de date perpétuels.Date display mechanisms that require owner intervention at the end of every month less than 31 days are called simple date display mechanisms. The display mechanisms of that require owner intervention only once a year, when February changes to March, are called semi-perpetual date display mechanisms. Finally, the date display mechanisms which spontaneously switch from the date indication of the last day of a month of less than 31 days to the date indication of the first day of the following month, including leap years , are called perpetual date display mechanisms.

Les mécanismes d'affichage de date qui comprennent un unique anneau sur le pourtour duquel sont réparties les indications de quantième de « 1 » à « 31 » ont pour avantage de comprendre un nombre limité de pièces. Ils sont donc plus économiques et plus faciles à intégrer dans un mouvement d'horlogerie d'une montre mécanique ou électromécanique. Par contre, on ne dispose que d'un secteur angulaire d'un peu moins de 12° pour reproduire chacune des 31 indications de date sur l'anneau de quantième. La taille des indications de date est donc nécessairement limitée par les dimensions de l'anneau de quantième, ce qui peut rendre ces indications de date difficiles à lire.The date display mechanisms which comprise a single ring around the periphery of which are distributed the date indications from “1” to “31” have the advantage of comprising a limited number of parts. They are therefore more economical and easier to integrate into a clockwork movement of a mechanical or electromechanical watch. On the other hand, there is only one angular sector of a little less than 12° to reproduce each of the 31 date indications on the date ring. The size of the date indications is therefore necessarily limited by the dimensions of the date ring, which can make these date indications difficult to read.

A côté des mécanismes d'affichage de date dont l'organe d'affichage est un anneau sur lequel sont reportées les trente-et-une indications de quantième, il existe également les mécanismes d'affichage de quantième dits « grande date » eux aussi prévus pour équiper des pièces d'horlogerie mécaniques ou électromécaniques. Ces mécanismes d'affichage de quantième grande date sont appelés ainsi car ils permettent d'afficher l'indication de date à plus grande échelle, ce qui facilite la lecture de la date et apporte un plus indéniable à l'esthétique de la pièce d'horlogerie équipée d'un tel mécanisme.Alongside date display mechanisms whose display member is a ring on which the thirty-one date indications are shown, there are also date display mechanisms known as “big date” designed to equip mechanical or electromechanical timepieces. These large date calendar display mechanisms are so called because they allow the date indication to be displayed on a larger scale, which makes it easier to read the date and brings an undeniable plus to the aesthetics of the piece. watchmaking equipped with such a mechanism.

Les mécanismes d'affichage de quantième grande date comprennent classiquement un premier indicateur de quantième sur lequel sont reportées les indications des unités de quantième de « 0 » à « 9 ». Ces 10 chiffres sont reproduits sur le premier indicateur de quantième selon des enchaînements qui dépendent du mode de fonctionnement du mécanisme d'affichage grande date considéré. Ces mécanismes d'affichage de quantième sont complétés par un second indicateur de quantième sur lequel sont reproduites les indications des dizaines de quantième de « 0 » à « 3 ». Ainsi, en ajustant convenablement la position du premier indicateur de quantième par rapport au second indicateur de quantième, il est possible de constituer toutes les indications de quantième de « 01 » à « 31 » en combinant les indications des unités de quantième portées par le premier indicateur de quantième avec les indications des dizaines de quantième portées par le second indicateur de quantième. Comme le premier indicateur de quantième ne porte que les indications des unités de quantième et le second indicateur de quantième que les indications des dizaines de quantième, on dispose de davantage de place pour reproduire ces indications qui peuvent donc être de plus grande taille. La lecture d'un dispositif indicateur de quantième grande date est donc plus aisée et l'esthétique d'une pièce d'horlogerie équipée d'un tel dispositif indicateur de quantième est grandement améliorée.Large date date display mechanisms conventionally comprise a first date indicator on which are transferred the indications of the date units from “0” to “9”. These 10 digits are reproduced on the first date indicator according to sequences which depend on the mode of operation of the large date display mechanism considered. These date display mechanisms are completed by a second date indicator on which are reproduced the indications of the tens of the date from “0” to “3”. Thus, by suitably adjusting the position of the first date indicator in relation to the second date indicator, it is possible to constitute all the date indications from "01" to "31" by combining the indications of the date units carried by the first date indicator with the tens of date indications carried by the second date indicator. As the first date indicator bears only the indications of the date units and the second date indicator only the indications of the tens of the date, there is more room to reproduce these indications which can therefore be of larger size. Reading a large date date indicator device is therefore easier and the appearance of a timepiece equipped with such a date indicator device is greatly improved.

Les mécanismes d'affichage de quantième du type « grande date » posent néanmoins un problème lors du passage du « 31 » d'un mois donné au « 01 » du mois suivant. En effet, par construction, l'indication de l'unité de quantième « 1 » qui est utilisée pour composer l'indication de quantième « 31 » est la même que l'indication de l'unité de quantième « 1 » avec laquelle est composée l'indication de quantième « 01 ». Par conséquent, durant le passage de l'indication de quantième « 31 » à l'indication de quantième « 01 », l'indication de l'unité de quantième « 1 » doit rester inchangée, tandis que l'indication de dizaine du quantième passe de la valeur « 3 » à la valeur « 0 ». Autrement dit, lors du passage de la fin d'un mois de 31 jours au premier jour du mois suivant, le premier indicateur de quantième sur lequel sont reportées les indications des unités de quantième doit rester immobile. Pour atteindre cet objectif, il convient d'empêcher le mouvement d'horlogerie qui, en temps normal, assure l'avance quotidienne du mécanisme d'affichage grande date, d'entraîner le premier indicateur de quantième lors du passage du dernier jour d'un mois de 31 jours au 1er jour du mois suivant.The date display mechanisms of the “big date” type nevertheless pose a problem when changing from “31” of a given month to “01” of the following month. Indeed, by construction, the indication of the date unit "1" which is used to compose the date indication "31" is the same as the indication of the date unit "1" with which composed the date indication “01”. Consequently, during the passage from the date indication "31" to the date indication "01", the indication of the date unit "1" must remain unchanged, while the indication of the tens of the date changes from the value "3" to the value "0". In other words, during the transition from the end of a month of 31 days to the first day of the following month, the first date indicator on which the indications of the date units are transferred must remain stationary. To achieve this objective, it is necessary to prevent the clock movement which, in normal times, ensures the daily advance of the large date display mechanism, from driving the first indicator of date when changing from the last day of a 31-day month to the 1st day of the following month.

La solution habituellement proposée pour résoudre ce problème consiste à priver l'une des roues qui se trouve dans la chaîne cinématique comprise entre la sortie du mouvement d'horlogerie et l'indicateur de quantième qui porte les indications des unités de quantième d'au moins une dent de façon que, lors du passage du « 31 » au « 01 », cette roue, bien qu'entraînée par le mouvement d'horlogerie, ne parvienne pas à entraîner à son tour le pignon avec lequel elle est en prise et qui, lui aussi, participe à l'entraînement de l'indicateur des unités de quantième. Le pignon restant immobile durant cette période, la liaison cinématique entre le mouvement d'horlogerie et le premier indicateur de quantième qui porte les indications des unités de quantième est interrompue, et l'indication des unités de quantième « 1 » reste inchangée.The solution usually proposed to solve this problem consists in depriving one of the wheels which is located in the kinematic chain between the output of the clockwork movement and the date indicator which bears the indications of the date units by at least a tooth so that, when changing from "31" to "01", this wheel, although driven by the clockwork movement, is unable in turn to drive the pinion with which it is in mesh and which , too, takes part in driving the date units indicator. As the pinion remains immobile during this period, the kinematic connection between the clock movement and the first date indicator which bears the date unit indications is interrupted, and the date unit indication "1" remains unchanged.

Cette solution n'est cependant pas parfaite étant donné que, durant les 24 heures qui séparent le passage du dernier jour d'un mois de 31 jours au premier jour du mois suivant et au cours desquelles le pignon n'est plus en prise avec la roue qui le restant du temps assure son entraînement, le maintien en position du pignon, et donc du premier indicateur de quantième qui porte les indications des unités de quantième, n'est plus assuré, ce qui n'est pas acceptable car on ne peut garantir le positionnement convenable de l'indication des unités du quantième dans un guichet ménagé dans un cadran de la pièce d'horlogerie et à travers lequel l'indication de quantième est visible. En outre, lorsque la roue va tourner et va se retrouver dans une position dans laquelle elle est à nouveau en mesure d'engrener avec le pignon, il se peut que le pignon ne soit pas convenablement positionné et qu'il soit impossible à la roue de revenir en prise avec ce pignon, ce qui conduit au blocage du mécanisme. Il est donc indispensable de pouvoir constamment garantir la bonne indexation du pignon, en particulier durant la période où ce pignon n'est pas en prise avec la roue qui l'entraîne le restant du temps.However, this solution is not perfect given that, during the 24 hours which separate the passage from the last day of a month of 31 days to the first day of the following month and during which the pinion is no longer in mesh with the wheel which drives it for the rest of the time, the maintenance in position of the pinion, and therefore of the first date indicator which bears the indications of the date units, is no longer ensured, which is not acceptable because it is not possible guarantee the correct positioning of the indication of the date units in an aperture formed in a dial of the timepiece and through which the date indication is visible. In addition, when the wheel turns and finds itself in a position in which it is again able to mesh with the pinion, it is possible that the pinion is not correctly positioned and that it is impossible for the wheel to come back into engagement with this pinion, which leads to the blocking of the mechanism. It is therefore essential to be able to constantly guarantee the correct indexing of the pinion, in particular during the period when this pinion is not in mesh with the wheel which drives it the rest of the time.

Le document EP 3 147 728 A1 divulgue un système de réglage de la position angulaire d'une roue dentée montée par rapport à un axe sur lequel la roue dentée est montée à pivotement, le système de réglage comprenant un levier de positionnement permettant d'agir sur une position angulaire de la roue dentée, de façon à régler la position angulaire de la roue dentée par rapport à l'axe.The document EP 3 147 728 A1 discloses a system for adjusting the angular position of a toothed wheel mounted with respect to an axis on which the toothed wheel is pivotally mounted, the adjustment system comprising a positioning lever making it possible to act on an angular position of the wheel toothed, so as to adjust the angular position of the toothed wheel with respect to the axis.

Pour les raisons exposées ci-dessus, il est donc nécessaire de prendre toutes les dispositions requises afin de garantir le positionnement angulaire précis entre la roue et le pignon.For the reasons explained above, it is therefore necessary to take all the necessary measures in order to guarantee the precise angular positioning between the wheel and the pinion.

Résumé de l'inventionSummary of the invention

La présente invention a pour but de résoudre le problème exposé ci-dessus en procurant un mécanisme permettant le réglage de la position angulaire d'un premier mobile denté par rapport à un support sur lequel le premier mobile denté est monté à pivotement.The object of the present invention is to solve the problem set out above by providing a mechanism allowing adjustment of the angular position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotally mounted.

En particulier, la présente invention concerne un mécanisme de réglage de la position angulaire d'un pignon par rapport à une roue avec laquelle le pignon forme un mobile.In particular, the present invention relates to a mechanism for adjusting the angular position of a pinion relative to a wheel with which the pinion forms a mobile.

Pour atteindre cet objectif, la présente invention divulgue un système de réglage de la position angulaire d'un pignon par rapport à une roue sur laquelle le pignon est monté à pivotement, le système de réglage comprenant un organe de réglage (8) ainsi qu'une roue (60) sur laquelle un pignon (56) est monté pivotant à friction pour former un mobile, l'organe de réglage (8), monté pivotant sur la roue (60) étant en prise avec le pignon (56) et permettant de faire pivoter ce pignon (56) de façon a régler une position angulaire du pignon (56) par rapport à la roue (60).To achieve this objective, the present invention discloses a system for adjusting the angular position of a pinion relative to a wheel on which the pinion is pivotally mounted, the adjustment system comprising an adjustment member (8) as well as a wheel (60) on which a pinion (56) is pivotally mounted by friction to form a wheel set, the adjustment member (8), pivotally mounted on the wheel (60) being in engagement with the pinion (56) and allowing to pivot this pinion (56) so as to adjust an angular position of the pinion (56) relative to the wheel (60).

Selon une forme d'exécution de l'invention, l'organe de réglage est un mobile denté dont la position angulaire est ajustable et qui est en prise avec le premier mobile denté dont la position angulaire est à régler.According to one embodiment of the invention, the adjusting member is a toothed wheel set whose angular position is adjustable and which engages with the first toothed wheel set whose angular position is to be adjusted.

La présente invention concerne également une pièce d'horlogerie qui comprend un organe de réglage selon l'invention.The present invention also relates to a timepiece which comprises an adjustment member according to the invention.

Grâce à ces caractéristiques, la présente invention procure un système qui permet de régler avec précision la position angulaire d'un premier mobile denté par rapport à un support sur lequel le premier mobile denté est monté pivotant. Il est ainsi possible de garantir un engrènement optimal entre le premier mobile et un second mobile denté avec lequel le premier mobile denté engrène et, par suite, le bon positionnement de tous les mobiles qui, dans une chaîne cinématique dans laquelle les premier et second mobiles se trouvent inclus, sont disposés en amont et en aval du premier, respectivement du second mobile. Pour atteindre cet objectif, la présente invention enseigne d'utiliser un organe de réglage du genre d'une clé dont la position angulaire est ajustable par exemple au moyen d'un tournevis. Cet organe de réglage, monté pivotant sur le support qui porte le premier mobile ou sur un support distinct, est en prise avec le premier mobile, de sorte qu'en faisant pivoter l'organe de réglage, il est possible de régler la position angulaire de ce premier mobile.Thanks to these characteristics, the present invention provides a system which makes it possible to precisely adjust the angular position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotally mounted. It is thus possible to guarantee optimum meshing between the first mobile and a second toothed mobile with which the first toothed mobile meshes and, consequently, the correct positioning of all the mobiles which, in a kinematic chain in which the first and second mobiles are included, are arranged upstream and downstream of the first, respectively of the second mobile. To achieve this objective, the present invention teaches the use of an adjustment member of the type of a key whose angular position is adjustable for example by means of a screwdriver. This adjustment member, pivotally mounted on the support which carries the first mobile or on a separate support, is in engagement with the first mobile, so that by pivoting the adjustment member, it is possible to adjust the angular position of this first mobile.

La présente invention concerne également un mécanisme d'affichage de quantième grande date entraîné via une chaîne cinématique par un mouvement d'horlogerie d'une pièce d'horlogerie équipée de ce mécanisme d'affichage de quantième grande date, ce mécanisme d'affichage de quantième grande date comprenant un premier indicateur de quantième sur lequel sont reportées les indications des unités de quantième de « 0 » à « 9 », et un second indicateur de quantième sur lequel sont reportées les indications des dizaines de quantième de « 0 » à « 3 », toutes les indications de quantième de « 01 » à « 31 » pouvant être obtenues par combinaison des indications des unités de quantième « 0 » à « 9 » portées par le premier indicateur de quantième avec les indications des dizaines de quantième « 0 » à « 3 » portées par le second indicateur de quantième, le premier indicateur de quantième restant immobile durant une période de 24 heures qui sépare le passage du dernier jour d'un mois de 31 jours au premier jour du mois suivant, la chaîne cinématique comprenant une roue continûment en prise avec le mouvement d'horlogerie et qui présente un périmètre muni de dents via lesquelles la roue engrène avec un pignon qui lui-même participe à l'entraînement du premier indicateur des unités de quantième, la roue étant, en un endroit de son périmètre, dépourvue de dent afin que, durant la période de 24 heures qui sépare le passage du dernier jour d'un mois de 31 jours au premier jour du mois suivant, la roue n'engrène pas avec le pignon qui, de même que le premier indicateur de quantième, reste ainsi immobile, le mécanisme d'affichage de quantième grande date comprenant également un pignon entraîneur des unités en prise avec une roue intermédiaire, le pignon entraîneur des unités étant monté à friction sur une roue entraîneuse des unités avec laquelle il forme un mobile entraîneur des unités, les forces de friction présentes entre le pignon entraîneur des unités (56) et la roue entraîneuse des unités (60) étant suffisamment importantes pour que le pignon entraîneur des unités (56) puissent entraîner la roue entraîneuse des unités (60) en rotation lorsque lui-même est entraîné en rotation par la roue intermédiaire (54), mais cependant suffisamment faibles pour que la position angulaire du pignon entraîneur des unités (56) puisse être ajustée, un organe denté de réglage dont la position angulaire est ajustable et qui est en prise avec le pignon entraîneur des unités étant porté par la roue entraîneuse des unités.The present invention also relates to a large date calendar display mechanism driven via a kinematic chain by a clockwork movement of a timepiece equipped with this large date calendar display mechanism, this large date calendar comprising a first date indicator on which are reported the indications of the date units from "0" to "9", and a second date indicator on which are reported the indications of the tens of the date from "0" to "3", all the date indications from "01" to "31" that can be obtained by combining the indications of the date units "0" to "9" carried by the first date indicator with the tens of date indications "0" to "3" carried by the second date indicator, the first date indicator remaining stationary for a period of 24 hours which separates the passing of the last day of a month from 31 days to the first day of the following month, the kinematic chain comprising a wheel continuously engaged with the clockwork and which has a perimeter provided with teeth via which the wheel meshes with a pinion which itself takes part in driving the first indicator of the date units, the wheel being, at one place of its perimeter, devoid of any teeth so that, during the period of 24 hours which separates the transition from the last day of a month of 31 days to the first day of the following month , the wheel does not mesh with the pinion which, like the first date indicator, thus remains immobile, the large date date display mechanism also comprising a pinion driving the units engaged e with an intermediate wheel, the drive pinion of the units being mounted by friction on a drive wheel of the units with which it forms a movable drive of the units, the friction forces present between the drive pinion of the units (56) and the drive wheel of the units units (60) being large enough that the unit drive pinion (56) can drive the unit drive wheel (60) in rotation when itself is rotated by the idler wheel (54), yet small enough to that the angular position of the unit drive pinion (56) can be adjusted, a toothed adjusting member whose angular position is adjustable and which is in mesh with the unit drive pinion being carried by the unit drive wheel.

Selon une autre forme d'exécution de l'invention, un sautoir double est monté à pivotement autour d'un axe et comprend, à une première extrémité, un premier bec par lequel il est en prise avec une denture du premier indicateur de quantième et, à une seconde extrémité, un second bec par lequel il est en prise avec une denture d'un pignon intermédiaire, le sautoir double étant maintenu élastiquement en prise avec le premier indicateur de quantième et avec le pignon.According to another embodiment of the invention, a double jumper is pivotally mounted around an axis and comprises, at a first end, a first beak by which it engages with a toothing of the first date indicator and , at a second end, a second beak by which it engages with a toothing of an intermediate pinion, the jumper double being held elastically in engagement with the first date indicator and with the pinion.

Grâce à ces caractéristiques, la présente invention procure un mécanisme d'affichage de quantième grande date dans lequel la position d'un pignon qui participe à l'entraînement de l'indicateur des unités de quantième est ajustée avec précision, de façon à garantir un engrènement optimal entre ce pignon entraîneur des unités et la roue intermédiaire avec laquelle ce pignon est en prise.Thanks to these characteristics, the present invention provides a large date date display mechanism in which the position of a pinion which participates in driving the indicator of the date units is adjusted with precision, so as to guarantee a optimal meshing between this drive pinion of the units and the intermediate wheel with which this pinion is in mesh.

Il est d'autre part nécessaire que, lors du passage d'un mois de 31 jours au premier jour du mois suivant, le pignon entraîneur des unités soit découplé du mouvement d'horlogerie afin que l'indicateur des unités de quantième reste immobile durant cette période. Effectivement, le marquage « 1 » porté par l'indicateur des unités de quantième est utilisé à la fois pour composer l'indication de quantième « 31 » à la fin d'un mois de 31 jours, et pour composer l'indication de quantième « 01 » au début du mois suivant. Il est donc indispensable que l'indicateur des unités de quantième reste immobile durant ce laps de temps afin que l'indication de date qui apparaît à travers un guichet ménagé dans un cadran de la pièce d'horlogerie soit exacte. Par suite, il faut découpler le pignon entraîneur des unités afin que le mouvement d'horlogerie qui fonctionne en permanence ne puisse entraîner l'indicateur des unités de quantième.It is also necessary that, when changing from a month of 31 days to the first day of the following month, the drive pinion of the units is decoupled from the clockwork movement so that the indicator of the date units remains stationary during this period. Indeed, the marking "1" carried by the date units indicator is used both to compose the date indication "31" at the end of a month of 31 days, and to compose the date indication “01” at the beginning of the following month. It is therefore essential for the indicator of the date units to remain stationary during this lapse of time so that the date indication which appears through an aperture provided in a dial of the timepiece is accurate. As a result, it is necessary to decouple the drive pinion from the units so that the clock movement which operates permanently cannot drive the indicator of the date units.

On comprendra cependant aisément que le fait que le pignon entraîneur des unités soit momentanément découplé de la roue qui l'entraîne en temps normal pose problème dans la mesure où le positionnement de ce pignon entraîneur des unités ne peut être assuré durant cette période. Par conséquent, lorsque la roue va tourner et va se retrouver dans une position dans laquelle elle est à nouveau en mesure d'engrener avec le pignon entraîneur des unités, il se peut que ce pignon entraîneur des unités ne soit pas convenablement positionné et qu'il soit impossible à la roue de revenir en prise avec ce pignon, ce qui conduit au blocage du mécanisme. Il est donc indispensable de pouvoir constamment garantir la bonne indexation du pignon entraîneur des unités, en particulier durant la période où ce pignon n'est pas en prise avec la roue qui l'entraîne le restant du temps.However, it will easily be understood that the fact that the drive pinion of the units is momentarily decoupled from the wheel which drives it in normal times poses a problem insofar as the positioning of this drive pinion of the units cannot be ensured during this period. Consequently, when the wheel turns and finds itself in a position in which it is again able to mesh with the drive pinion of the units, it is possible that this drive pinion of the units is not suitably positioned and that it is impossible for the wheel to come back into engagement with this pinion, which leads to the blocking of the mechanism. It is therefore it is essential to be able to constantly guarantee the correct indexing of the drive pinion of the units, in particular during the period when this pinion is not in mesh with the wheel which drives it the rest of the time.

C'est pourquoi, selon une forme spéciale d'exécution de l'invention, on prévoit un sautoir double en prise à l'une de ses extrémités avec une denture du pignon entraîneur des unités. De même, le sautoir double est en prise avec une denture de l'indicateur des unités de quantième afin d'assurer en permanence le bon positionnement de l'indication de l'unité de quantième dans le guichet percé dans le cadran de la pièce d'horlogerie.This is why, according to a special embodiment of the invention, a double jumper is provided in engagement at one of its ends with a toothing of the drive pinion of the units. Similarly, the double jumper meshes with a toothing of the date unit indicator in order to permanently ensure the correct positioning of the date unit indication in the aperture drilled in the dial of the piece. watchmaking.

On notera que, comme le sautoir double est articulé à pivotement, il est dégagé de sa prise avec le pignon entraîneur des unités lorsqu'il est repoussé par la denture du premier indicateur de quantième, et inversement.It will be noted that, as the double jumper is pivotally articulated, it is disengaged from its engagement with the drive pinion of the units when it is pushed back by the toothing of the first date indicator, and vice versa.

Brève description des figuresBrief description of figures

D'autres caractéristiques et avantages de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un exemple de réalisation du système de réglage de la position angulaire d'un mobile denté selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement en liaison avec le dessin annexé sur lequel :

  • les figures 1A et 1B sont des vues schématiques qui illustrent le principe du système de réglage de la position angulaire d'un mobile selon l'invention ;
  • la figure 2 est une vue de dessus d'une pièce d'horlogerie du type montre bracelet équipée d'un mécanisme d'affichage de quantième grande date comprenant un système de réglage selon l'invention ;
  • la figure 3 est une vue en plan du mécanisme d'affichage de quantième grande date équipé du système de réglage selon l'invention sur laquelle l'indicateur des dizaines de quantième est représenté en transparence ;
  • la figure 4 est une vue en perspective du mécanisme d'affichage de quantième grande date de la figure 3 sur laquelle est plus particulièrement visible la chaîne cinématique qui assure l'entraînement de l'indicateur des dizaines de quantième ;
  • la figure 5 est une vue identique à celle de la figure 3, exception faite de l'indicateur des dizaines de quantième qui a été omis ;
  • la figure 6 est une vue en perspective et de dessous du mécanisme d'affichage de quantième grande date qui révèle le mécanisme entraîneur de came qui commande le déclenchement du mécanisme d'affichage de quantième une fois par jour ;
  • la figure 7A est une vue en perspective à plus grande échelle du système de réglage selon l'invention, et
  • la figure 7B est une vue à plus grande échelle de l'organe de réglage.
Other characteristics and advantages of the present invention will emerge more clearly from the following detailed description of an embodiment of the system for adjusting the angular position of a toothed mobile according to the invention, this example being given purely illustrative and non-limiting only in connection with the attached drawing on which:
  • them figures 1A and 1B are schematic views which illustrate the principle of the system for adjusting the angular position of a mobile according to the invention;
  • the figure 2 is a top view of a timepiece of the wristwatch type fitted with a large date date display mechanism comprising an adjustment system according to the invention;
  • the picture 3 is a plan view of the large date calendar display mechanism equipped with the adjustment system according to the invention on which the tens of the date indicator is represented in transparency;
  • the figure 4 is a perspective view of the large date calendar display mechanism of the picture 3 on which is more particularly visible the kinematic chain which drives the tens of the date indicator;
  • the figure 5 is a view identical to that of the picture 3 , with the exception of the tens of the date indicator which has been omitted;
  • the figure 6 is a perspective view from below of the large date date display mechanism which reveals the cam drive mechanism which controls the triggering of the date display mechanism once a day;
  • the Figure 7A is a perspective view on a larger scale of the adjustment system according to the invention, and
  • the figure 7B is a larger scale view of the adjuster.

Description détaillée d'un mode de réalisation de l'inventionDetailed description of an embodiment of the invention

La présente invention procède de l'idée générale inventive qui consiste à garantir un positionnement angulaire précis entre un premier mobile denté et un support sur lequel le premier mobile denté est monté rotatif afin de garantir un engrènement optimal entre ce premier mobile denté et un second mobile denté avec lequel le premier mobile denté est en prise. Pour atteindre ce résultat, la présente invention enseigne d'ajuster avec précision la position angulaire du premier mobile denté par rapport au support sur lequel le premier mobile denté est monté. A cet effet, il est prévu un organe de réglage dont la position peut être ajustée au moyen d'un outil tel qu'un tournevis et qui engrène avec le premier mobile denté. Ainsi, en actionnant l'organe de réglage, il est possible d'ajuster très précisément la position angulaire du premier mobile denté.The present invention proceeds from the general inventive idea which consists in guaranteeing precise angular positioning between a first toothed wheel set and a support on which the first toothed wheel set is rotatably mounted in order to guarantee optimal meshing between this first toothed wheel set and a second wheel set. toothed with which the first toothed mobile is engaged. To achieve this result, the present invention teaches precisely adjusting the angular position of the first toothed wheel set relative to the support on which the first toothed wheel set is mounted. For this purpose, an adjusting member is provided, the position of which can be adjusted by means of a tool such as a screwdriver and which meshes with the first toothed wheel set. Thus, by actuating the adjusting member, it is possible to very precisely adjust the angular position of the first toothed wheel set.

La présente invention trouve son intérêt notamment, mais pas exclusivement, dans un mécanisme d'affichage de quantième grande date dans lequel, pour pouvoir garantir le bon fonctionnement de ce mécanisme d'affichage de quantième, il est nécessaire, lors du passage du dernier jour d'un mois de 31 jours au premier jour du mois suivant, d'interrompre la liaison mécanique entre le mouvement d'horlogerie et l'indicateur des unités de quantième. Durant ce laps de temps néanmoins, un pignon intermédiaire n'est plus en prise avec la roue entraîneuse qui l'entraîne le restant du temps. L'indexation de la position angulaire de ce pignon intermédiaire n'est, de ce fait, plus assurée. Pour garantir malgré tout un fonctionnement irréprochable du mécanisme d'affichage de quantième grande date, la présente invention prévoit d'ajuster finement la position angulaire d'un mobile inclus dans la chaîne cinématique à laquelle le pignon intermédiaire appartient, ceci dans le but de garantir un engrènement optimal entre les différents mobiles de cette chaîne cinématique.The present invention finds its interest in particular, but not exclusively, in a large date calendar display mechanism in which, in order to be able to guarantee the correct operation of this date display mechanism, it is necessary, when passing from the last day of a month of 31 days to the first day of the following month, to interrupt the mechanical connection between the clock movement and the date unit indicator. During this period of time, however, an intermediate pinion is no longer engaged with the drive wheel which drives it for the rest of the time. The indexing of the angular position of this intermediate pinion is therefore no longer ensured. To guarantee, despite everything, faultless operation of the large date date display mechanism, the present invention provides for finely adjusting the angular position of a wheel set included in the kinematic chain to which the intermediate pinion belongs, this with the aim of guaranteeing optimal meshing between the different mobiles of this kinematic chain.

La présente invention va être décrite en liaison avec un mécanisme d'affichage de quantième de type « grande date » dans lequel le problème de l'ajustement de la position angulaire d'un pignon par rapport à une roue avec laquelle le pignon engrène se pose. Il est cependant essentiel de bien comprendre que l'exemple d'un tel mécanisme d'affichage de quantième grande date est donné à titre purement illustratif et nullement limitatif seulement, et que le système de réglage selon l'invention de la position angulaire d'un premier mobile par rapport à un autre mobile avec lequel le premier mobile engrène peut être utilisé dans tout type de mécanisme horloger dans lequel se pose le problème du bon positionnement angulaire d'un mobile par rapport à un autre.The present invention will be described in connection with a date display mechanism of the "big date" type in which the problem of adjusting the angular position of a pinion relative to a wheel with which the pinion meshes arises. . However, it is essential to clearly understand that the example of such a large date calendar display mechanism is given for purely illustrative and in no way limiting only, and that the adjustment system according to the invention of the angular position of a first mobile relative to another mobile with which the first mobile meshes can be used in any type of watch mechanism in which the problem arises of the correct angular positioning of one mobile relative to another.

Schématiquement représenté aux figures 1A et 1B annexées à la présente demande de brevet, le système de réglage 1 selon l'invention comprend un support 2 sur lequel un premier mobile denté 4 est monté rotatif. Ce premier mobile denté 4 engrène avec un second mobile denté 6. L'un des buts de l'invention est de pouvoir régler avec précision la position angulaire du premier mobile denté 4 par rapport au second mobile denté 6 afin de garantir un engrènement optimum entre les deux mobiles dentés 4 et 6. A cette fin, le système de réglage 1 selon l'invention comprend un organe de réglage 8 qui est monté pivotant sur le support 2. Selon une forme spéciale d'exécution de l'invention, l'organe de réglage 8 peut être monté sur un autre support que celui sur lequel est monté le premier mobile denté 4. Cet organe de réglage 8 comprend un secteur denté 10 par lequel il engrène avec le premier mobile denté 4. En faisant pivoter cet organe de réglage 8 dans un sens ou dans l'autre, par exemple au moyen d'un tournevis, il est possible d'ajuster finement la position du premier mobile denté 4 par rapport au second mobile denté 6.Schematically represented in figures 1A and 1B appended to this patent application, the adjustment system 1 according to the invention comprises a support 2 on which a first toothed wheel set 4 is rotatably mounted. This first toothed wheel 4 meshes with a second toothed wheel 6. One of the aims of the invention is to be able to precisely adjust the angular position of the first toothed wheel 4 with respect to the second toothed wheel 6 in order to guarantee optimum meshing between the two toothed mobiles 4 and 6. To this end, the adjustment system 1 according to the invention comprises an adjustment member 8 which is pivotally mounted on the support 2. According to a special embodiment of the invention, the adjusting member 8 can be mounted on a support other than that on which the first toothed mobile 4 is mounted. This adjusting member 8 comprises a toothed sector 10 by which it meshes with the first toothed mobile 4. by pivoting this adjustment member 8 in one direction or the other, for example by means of a screwdriver, it is possible to finely adjust the position of the first toothed wheel set 4 with respect to the second toothed wheel set 6.

A titre d'exemple seulement, le système de réglage 1 selon l'invention peut être intégré dans un mécanisme d'affichage de grande date 12 équipant (voir figure 2) une pièce d'horlogerie 14 telle qu'une montre-bracelet. Cette pièce d'horlogerie 14 comprend un cadran 16 dans lequel est ménagé un guichet 18 à travers lequel est visible une indication de grande date 20.By way of example only, the adjustment system 1 according to the invention can be integrated into a large date display mechanism 12 equipping (see picture 2 ) a timepiece 14 such as a wristwatch. This timepiece 14 comprises a dial 16 in which is formed an aperture 18 through which a large date indication 20 is visible.

En se référant maintenant à la figure 3, on voit que le mécanisme d'affichage de grande date 12 comprend un renvoi au centre 22 qui est classiquement solidaire d'une roue des heures entraînée par une minuterie d'un mouvement d'horlogerie (non représentés). Ce renvoi au centre 22 engrène avec une roue entraîneuse de came 24 qui est entraînée à raison d'un tour par jour. Cette roue entraîneuse de came 24 entraîne à son tour une roue de came 26 sur laquelle est fixée une came 28.Referring now to the picture 3 , it can be seen that the large date display mechanism 12 comprises a central reference 22 which is conventionally attached to an hour wheel driven by a timer of a clock movement (not shown). This return to the center 22 meshes with a cam drive wheel 24 which is driven at the rate of one revolution per day. This cam drive wheel 24 in turn drives a cam wheel 26 to which a cam 28 is fixed.

La roue entraîneuse de came 24 et la roue de came 26 sont liées cinématiquement entre elles au moyen d'une goupille 30 chassée dans la roue de came 26 et qui passe librement à travers un trou oblong 32 ménagé dans la roue entraîneuse de came 24 (voir figure 6). Lorsque la roue entraîneuse de came 24 tourne, elle entraîne la roue de came 26 grâce à la goupille 30 qui bute contre un rebord intérieur 32a du trou oblong 32. La came 28 présente un profil 28a en un endroit duquel est prévu un décrochement 28b. Une bascule de déclenchement 34, contrainte élastiquement par un ressort 36, comprend un bec 38 par lequel elle suit le profil 28a de la came 28.The cam drive wheel 24 and the cam wheel 26 are kinematically linked together by means of a pin 30 driven into the cam wheel 26 and which passes freely through an oblong hole 32 made in the cam drive wheel 24 ( see figure 6 ). When the cam driving wheel 24 rotates, it drives the cam wheel 26 thanks to the pin 30 which abuts against an inner edge 32a of the oblong hole 32. The cam 28 has a profile 28a in a place of which a recess 28b is provided. A trigger rocker 34, elastically constrained by a spring 36, comprises a beak 38 by which it follows the profile 28a of the cam 28.

Une fois par jour, aux alentours de minuit, la bascule de déclenchement 34 tombe le long du décrochement 28b du profil 28a de la came 28 et provoque le pivotement instantané de la roue de came 26 d'un angle qui est défini par le décrochement 28b du profil 28a de la came 28. On notera que les dimensions du trou oblong 32 sont suffisantes pour permettre à la roue de came 26 d'effectuer son mouvement de pivotement instantané sans être gênée par la goupille 30.Once a day, around midnight, the trigger rocker 34 falls along the step 28b of the profile 28a of the cam 28 and causes the instantaneous pivoting of the cam wheel 26 by an angle which is defined by the step 28b of the profile 28a of the cam 28. It will be noted that the dimensions of the oblong hole 32 are sufficient to allow the cam wheel 26 to perform its instantaneous pivoting movement without being hindered by the pin 30.

La roue de came 26 entraîne une roue entraîneuse de quantième 40 qui porte un doigt 42 par lequel la roue entraîneuse de quantième 40 commande, une fois par jour, l'avance d'une roue de trente-et-une dents 44 d'un pas (voir figure 4). Par ailleurs, une roue de programmation 46 est fixée sur la roue de trente-et-une dents 44. La roue à trente-et-une dents 44 engrène à son tour avec une roue entraîneuse 48 elle-même en prise avec un pignon intermédiaire 50 d'un mobile intermédiaire 52. Finalement, une roue intermédiaire 54 du mobile intermédiaire 52 engrène avec un pignon entraîneur des unités 56 d'un mobile entraîneur des unités 58 dont une roue entraîneuse des unités 60 entraîne un indicateur des unités de quantième. A titre d'exemple illustratif et non limitatif seulement, cet indicateur des unités de quantième se présente sous la forme d'un anneau 62. Cet anneau indicateur des unités 62 porte les indications « 0 », « 1 », « 2 », « 3 », « 4 », « 5 », « 6 », « 7 », « 8 » et « 9 » qui correspondent aux indications des unités du quantième et avance à raison d'un pas par jour, excepté lors du passage du « 31 » d'un mois au « 1 » du mois suivant.The cam wheel 26 drives a date driving wheel 40 which carries a finger 42 by which the date driving wheel 40 controls, once a day, the advance of a wheel of thirty-one teeth 44 of a no see figure 4 ). Furthermore, a programming wheel 46 is fixed on the thirty-one-tooth wheel 44. The thirty-one-tooth wheel 44 in turn meshes with a driving wheel 48 itself in engagement with an intermediate pinion. 50 of an intermediate wheel set 52. Finally, an intermediate wheel 54 of the intermediate wheel set 52 meshes with a unit drive pinion 56 of a unit drive wheel set 58 of which a unit drive wheel 60 drives a date units indicator. By way of illustrative and non-limiting example only, this date unit indicator is in the form of a ring 62. This unit indicator ring 62 bears the indications "0", "1", "2", "3","4","5","6","7","8" and "9" which correspond to the indications of the units of the date and advance at the rate of one step per day, except when passing the "31" of one month to "1" of the following month.

La roue de programmation 46 est munie de quatre dents 46a, 46b, 46c et 46d par lesquelles cette roue de programmation 46 entraîne d'un pas tous les 10 jours une étoile à quatre dents 64 sur laquelle est fixé un indicateur des dizaines de quantième. A titre d'exemple illustratif et non limitatif seulement, cet indicateur des dizaines de quantième est conçu sous la forme d'un disque 66. Le disque indicateur des dizaines 66 porte les indications « 0 », « 1 », « 2 » et « 3 » qui correspondent aux indications des dizaines du quantième.The programming wheel 46 is provided with four teeth 46a, 46b, 46c and 46d by which this programming wheel 46 drives by one step every 10 days a star with four teeth 64 on which is fixed a tens of the date indicator. By way of illustrative and non-limiting example only, this tens of date indicator is designed in the form of a disc 66. The tens indicator disc 66 bears the indications “0”, “1”, “2” and “3” which correspond to the tens indications of the date.

Comme mentionné ci-dessus, l'anneau indicateur des unités 62 avance d'un pas par jour, excepté lors du passage du « 31 » d'un mois au « 1 » du mois suivant. Au cours de ce passage, l'anneau indicateur des unités 62 doit rester immobile. En effet, le marquage « 1 » porté par l'indicateur des unités de quantième est utilisé à la fois pour composer l'indication de quantième « 31 » à la fin d'un mois de 31 jours, et pour composer l'indication de quantième « 01 » au début du mois suivant. Il est donc indispensable que l'anneau indicateur des unités 62 reste immobile durant ce laps de temps afin que l'indication de date qui apparaît à travers le guichet 18 ménagé dans le cadran 16 de la pièce d'horlogerie 14 soit exacte.As mentioned above, the units indicator ring 62 advances one step per day, except when changing from the "31" of one month to the "1" of the next month. During this passage, the unit indicator ring 62 must remain stationary. Indeed, the marking "1" carried by the date units indicator is used both to compose the date indication "31" at the end of a month of 31 days, and to compose the indication of date "01" at the beginning of the following month. It is therefore essential that the unit indicator ring 62 remains stationary during this period of time so that the date indication which appears through the window 18 made in the dial 16 of the timepiece 14 is accurate.

Pour atteindre cet objectif, deux dents d'une denture 68 de trente-et-une dents de la roue entraîneuse 48 sont manquantes et laissent un espace vide 69 (voir figure 5). Ainsi, lorsque cette portion dépourvue de dent de la denture 68 de trente-et-une dents de la roue entraîneuse 48 fait face à une denture 70 du pignon intermédiaire 50, la position angulaire de ce pignon intermédiaire 50 n'est plus convenablement assurée, ce qui, en bout de chaîne cinématique, ne permet plus de garantir le bon positionnement de l'indication « 1 » portée par l'anneau indicateur des unités 62 dans le guichet 18 ménagé dans le cadran 16 de la pièce d'horlogerie 14. Bien entendu, ce problème n'est pas acceptable.To achieve this objective, two teeth of a thirty-one-tooth toothing 68 of the drive wheel 48 are missing and leave a gap 69 (see figure 5 ). Thus, when this toothless portion of the toothing 68 of thirty-one teeth of the drive wheel 48 faces a toothing 70 of the intermediate pinion 50, the angular position of this intermediate pinion 50 is no longer suitably ensured, which, at the end of the kinematic chain, no longer makes it possible to guarantee the correct positioning of the indication "1" carried by the unit indicator ring 62 in the window 18 formed in the dial 16 of the timepiece 14. Of course, this problem is not acceptable.

C'est pourquoi, conformément à l'invention, il est proposé d'équiper le mécanisme d'affichage de grande date 12 d'un système de réglage 1 selon l'invention. A cette fin, le pignon entraîneur des unités 56 qui joue le rôle de premier mobile denté dont la position angulaire est à ajuster est monté à friction sur la roue entraîneuse des unités 60 qui joue le rôle de support. Dans le mode de réalisation illustré à titre d'exemple seulement sur la figure 7A, le pignon entraîneur des unités 56 comprend un axe 56a par lequel il est monté à friction entre deux bras parallèles 60a et 60b qui s'étendent sensiblement selon un diamètre de la roue entraîneuse des unités 60. Le système de réglage 1 selon l'invention est complété par un organe de réglage 72 monté pivotant sur la roue entraîneuse des unités 60. Cet organe de réglage 72 comprend un secteur denté 74 par lequel il engrène avec la denture du pignon entraîneur des unités 56 (voir figure 7B). En faisant tourner l'organe de réglage 72, par exemple au moyen d'un tournevis, dans un sens ou dans l'autre, il est possible de régler précisément la position angulaire du pignon entraîneur des unités 56, de façon que ce pignon entraîneur des unités 56 engrène de manière optimale avec la roue intermédiaire 54 qui l'entraîne. On comprendra que les forces de friction présentes entre le pignon entraîneur des unités 56 et la roue entraîneuse des unités 60 sont suffisamment importantes pour que le pignon entraîneur des unités 56 puissent entraîner la roue entraîneuse des unités 60 en rotation lorsque lui-même est entraîné en rotation par la roue intermédiaire 54, mais cependant suffisamment faibles pour que la position angulaire du pignon entraîneur des unités 56 puisse être ajustée. Finalement, la roue entraîneuse des unités 60 entraîne l'anneau indicateur des unités 62 par engrènement avec la denture intérieure 68 de cet anneau indicateur des unités 62.This is why, in accordance with the invention, it is proposed to equip the large date display mechanism 12 with an adjustment system 1 according to the invention. To this end, the drive pinion of the units 56 which plays the role of the first toothed mobile whose angular position is to be adjusted is mounted by friction on the drive wheel of the units 60 which plays the role of support. In the embodiment illustrated by way of example only in the Figure 7A , the drive pinion of the units 56 comprises an axis 56a by which it is mounted friction between two parallel arms 60a and 60b which extend substantially along a diameter of the driving wheel of the units 60. The adjustment system 1 according to the invention is completed by an adjusting member 72 pivotally mounted on the driving wheel of the units 60. This adjusting member 72 comprises a toothed sector 74 by which it meshes with the teeth of the drive pinion of the units 56 (see figure 7B ). By rotating the adjusting member 72, for example by means of a screwdriver, in one direction or the other, it is possible to precisely adjust the angular position of the driving pinion of the units 56, so that this driving pinion of the units 56 meshes optimally with the intermediate wheel 54 which drives it. It will be understood that the frictional forces present between the drive pinion of the units 56 and the drive wheel of the units 60 are sufficiently great for the drive pinion of the units 56 to be able to drive the drive wheel of the units 60 in rotation when it is itself driven in rotation. rotation by the intermediate wheel 54, but nevertheless sufficiently weak so that the angular position of the drive pinion of the units 56 can be adjusted. Finally, the units drive wheel 60 drives the units indicator ring 62 by meshing with the internal toothing 68 of this units indicator ring 62.

Toujours dans le souci d'améliorer le fonctionnement du mécanisme d'affichage grande date 1, il peut également être prévu d'équiper ce mécanisme d'un sautoir double 76 agencé à pivotement autour d'un centre O. Ce sautoir double 76 est muni d'un premier bec 76a par lequel il est en prise avec la denture 70 du pignon intermédiaire 50, et d'un second bec 76b par lequel il est en prise avec une denture intérieure 78 de l'anneau indicateur des unités 62. Le sautoir double 76 est maintenu en appui élastique contre la denture 70 du pignon intermédiaire 50 et contre la denture intérieure 78 de l'anneau indicateur des unités 62 par un ressort 80. Lorsque le pignon intermédiaire 50 avance d'un pas, le sautoir double 76 pivote autour de son centre de pivotement O et son bec 76a s'efface en passant du creux entre deux dents consécutives de la denture 70 de ce pignon intermédiaire 50 au creux suivant. Simultanément, le second bec 76b du sautoir double 76 se dégage du creux entre les deux dents de la denture intérieure 78 de l'anneau indicateur des unités 62 et tombe dans le creux suivant. La géométrie du sautoir double 76 et le positionnement de son centre de pivotement O sont tels que lorsque le sautoir double 76 pivote, il se dégage simultanément de la denture 70 du pignon intermédiaire 50 et de la denture intérieure 78 de l'anneau indicateur des unités 62. Ainsi, lors du passage, à la fin d'un mois, de l'indication de quantième « 31 » à l'indication de quantième « 1 » du mois suivant, le pignon intermédiaire 50, bien que n'étant pas en prise avec la roue entraîneuse 48, est maintenu en position par le bec 76a du sautoir double 76, de sorte qu'il n'y a aucun risque que l'indication de quantième « 1 » ne soit pas convenablement centrée dans le guichet 18 ménagé dans le cadran 16 de la pièce d'horlogerie 14.Still with a view to improving the operation of the large date display mechanism 1, provision may also be made to equip this mechanism with a double jumper 76 arranged to pivot around a center O . This double jumper 76 is provided with a first beak 76a by which it engages with the toothing 70 of the intermediate pinion 50, and with a second beak 76b by which it engages with an internal toothing 78 of the indicator ring of the units 62. The double jumper 76 is held elastically against the toothing 70 of the intermediate pinion 50 and against the internal toothing 78 of the indicator ring of the units 62 by a spring 80. When the intermediate pinion 50 advances by one step , the double jumper 76 pivots around its center of pivot O and its beak 76a disappears while passing from the hollow between two consecutive teeth of the toothing 70 of this intermediate pinion 50 to the next trough. Simultaneously, the second beak 76b of the double jumper 76 emerges from the hollow between the two teeth of the internal toothing 78 of the unit indicator ring 62 and falls into the next hollow. The geometry of the double jumper 76 and the positioning of its center of pivot O are such that when the double jumper 76 pivots, it simultaneously disengages from the toothing 70 of the intermediate pinion 50 and from the internal toothing 78 of the unit indicator ring. 62. Thus, during the transition, at the end of a month, from the date indication "31" to the date indication "1" of the following month, the intermediate pinion 50, although not being in taken with the drive wheel 48, is held in position by the beak 76a of the double jumper 76, so that there is no risk that the date indication "1" is not properly centered in the aperture 18 provided in dial 16 of timepiece 14.

Le pignon intermédiaire 50 appartient au mobile intermédiaire 52 avec une roue intermédiaire 54 duquel il est couplé en rotation. Cette roue intermédiaire 54 engrène à son tour avec un pignon entraîneur des unités 56 d'un mobile entraîneur des unités 58 de l'anneau indicateur des unités 62. Ce pignon entraîneur des unités 56 est couplé en rotation avec la roue entraîneuse des unités 60 qui entraîne l'anneau indicateur des unités 62 par engrènement avec la denture intérieure 78 de cet anneau indicateur des unités 62.The intermediate pinion 50 belongs to the intermediate mobile 52 with an intermediate wheel 54 to which it is coupled in rotation. This intermediate wheel 54 in turn meshes with a unit drive pinion 56 of a unit drive mobile 58 of the unit indicator ring 62. This unit drive pinion 56 is rotationally coupled with the unit drive wheel 60 which drives the units indicator ring 62 by meshing with the internal toothing 78 of this units indicator ring 62.

Il va de soi que la présente invention n'est pas limitée au mode de réalisation qui vient d'être décrit et que diverses modifications et variantes simples peuvent être envisagées par l'homme du métier sans sortir du cadre de l'invention tel que défini par les revendications annexées. On notera en particulier que le nombre de dents de la denture 68 de la roue entraîneuse 48 peut être différent de trente-et-une dents et que le nombre de dents omises peut être différent de deux, par exemple égal à un ou à trois.It goes without saying that the present invention is not limited to the embodiment which has just been described and that various simple modifications and variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined. by the appended claims. It will be noted in particular that the number of teeth of the toothing 68 of the driving wheel 48 can be different from thirty-one teeth and that the number of omitted teeth can be different from two, for example equal to one or three.

NomenclatureNomenclature

  • 1. Système de réglage1. Adjustment system
  • 2. Support2. Bracket
  • 4. Premier mobile denté4. First toothed mobile
  • 6. Second mobile denté6. Second toothed mobile
  • 8. Organe de réglage8. Regulator
  • 10. Secteur denté10. Gear sector
  • 12. Mécanisme d'affichage de grande date12. Large date display mechanism
  • 14. Montre-bracelet14. Wristwatch
  • 16. Cadran16. Dial
  • 18. Guichet18. Counter
  • 20. Indication de grande date20. Big date indication
  • 22. Renvoi au centre22. Return to center
  • 24. Roue entraîneuse de came24. Cam drive wheel
  • 26. Roue de came26. Cam wheel
  • 28. Came28. Cam
  • 28a. Profil de came28a. Cam profile
  • 28b. Décrochement28b. Detachment
  • 30. Goupille30. Pin
  • 32. Trou oblong32. Oblong hole
  • 32a. Rebord intérieur32a. inner rim
  • 34. Bascule de déclenchement34. Trigger Toggle
  • 36. Ressort36. Spring
  • 38. Bec 2638. Spout 26
  • 40. Roue entraîneuse de quantième40. Date drive wheel
  • 42. Doigt42. Finger
  • 44. Roue à trente-et-une dents44. Wheel with thirty-one teeth
  • 46. Roue de programmation46. Programming Wheel
  • 46a, 46b, 46c, 46d. Dents46a, 46b, 46c, 46d. Teeth
  • 48. Roue entraîneuse48. Driving wheel
  • 50. Pignon intermédiaire50. Intermediate gear
  • 52. Mobile intermédiaire52. Intermediate Movable
  • 54. Roue intermédiaire54. Intermediate wheel
  • 56. Pignon entraîneur des unités56. Drive unit pinion
  • 58. Mobile entraîneur des unités58. Mobile unit trainer
  • 60. Roue entraîneuse des unités60. Unit driving wheel
  • 60a, 60b. Bras parallèles60a, 60b. Parallel arms
  • 62. Anneau indicateur des unités62. Unit indicator ring
  • 64. Etoile à quatre dents64. Star with four teeth
  • 66. Disque indicateur des dizaines66. Tens indicator disc
  • 68. Denture68. Teeth
  • 56a. Axe56a. Axis
  • 69. Espace vide69. Empty Space
  • 70. Denture70. Teeth
  • 72. Organe de réglage72. Regulator
  • 74. Secteur denté74. Gear sector
  • 76. Sautoir double76. Double jumper
  • 76a. Premier bec76a. First beak
  • 76b. Second bec76b. Second spout
  • O. Centre de pivotementO. Pivot center
  • 78. Denture intérieure78. Internal teeth
  • 80. Ressort80. Spring

Claims (4)

  1. System for adjusting the angular position of a pinion relative to a wheel on which the pinion is mounted such that it can pivot, the adjusting system comprising an adjusting member (8) as well as a wheel (60) on which a pinion (56) is frictionally mounted so as to form a wheel set, the adjusting member (8), pivotally mounted on wheel (60), being engaged with the pinion (56) and allowing to pivot said pinion (56) so as to adjust the angular position of the pivot (56) relative to the wheel (60).
  2. Adjusting system according to claim 1, characterised in that the adjusting member (8) is a wheel set having a toothed sector (10) and the angular position whereof is adjustable and which is engaged with the pinion (56), the angular position whereof is to be adjusted.
  3. Timepiece that comprises an adjusting system according to one of Claims 1 and 2.
  4. Large date calendar display mechanism comprising an adjusting system according to one of claims 1 and 2, this large date calendar display mechanism being driven via a kinematic chain by a horological movement of a timepiece (14) equipped with this large date calendar display mechanism (12), this large date calendar display mechanism (12) comprising a first date indicator (62) on which the indications of the units component of the date from "0" to "9" are placed, and a second date indicator (66) on which the indications of the tens component of the date from "0" to "3" are placed, whereby all of the date indications from "01" to "31" can be obtained by combining the indications of the units component "0" to "9" of the date, borne by the first date indicator (62), with the indications of the tens component "0" to "3" of the date, borne by the second date indicator (66), the first date indicator (62) remaining still during a 24-hour period separating the passage from the last day of a month having 31 days to the first day of the following month, the kinematic chain comprising a wheel (48) that is continuously engaged with the horological movement and which has a perimeter provided with a toothing (68) via which the wheel (48) meshes with a pinion (50) which itself contributes to driving the first indicator of the units component of the date (62), the wheel (48) being, at one point (69) along the perimeter thereof, devoid of teeth such that, during the 24-hour period separating the passage from the last day of a month having 31 days to the first day of the following month, the wheel (48) does not mesh with the pinion (50) which, similarly to the first date indicator (62), thus remains still, the large date calendar display mechanism (12) further comprising a units drive pinion (56) engaged with an intermediate wheel (54), the units drive pinion (56) being frictionally mounted on a units drive wheel (60) with which it forms a units drive wheel set (58), the friction forces present between the units drive pinion (56) and the units drive wheel (60) being high enough for the units drive pinion (56) to be able to drive the units drive wheel (60) such that it rotates when it is itself rotated by the intermediate wheel (54), however low enough for the angular position of the units drive pinion (56) to be able to be adjusted, an adjusting member (72), the angular position whereof is adjustable and which is engaged with the units drive pinion (56), being borne by the units drive wheel (60).
EP18211344.9A 2018-12-10 2018-12-10 System for adjusting the position of a first toothed moving part relative to a support on which the first toothed moving part is pivotably mounted, and timepiece comprising such a system Active EP3667435B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18211344.9A EP3667435B1 (en) 2018-12-10 2018-12-10 System for adjusting the position of a first toothed moving part relative to a support on which the first toothed moving part is pivotably mounted, and timepiece comprising such a system
US16/687,831 US11550264B2 (en) 2018-12-10 2019-11-19 System for adjusting the position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotably mounted and timepiece comprising such a system
JP2019215210A JP6831439B2 (en) 2018-12-10 2019-11-28 A system for adjusting the positioning of the first toothed wheel set with respect to a support on which the first toothed wheel set is pivotally mounted, and a watch including such a system.
CN201911260246.1A CN111290232B (en) 2018-12-10 2019-12-10 System for adjusting the position of a first gear set relative to a support and timepiece comprising same
US18/059,663 US11899402B2 (en) 2018-12-10 2022-11-29 System for adjusting the position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotably mounted and timepiece comprising such a system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18211344.9A EP3667435B1 (en) 2018-12-10 2018-12-10 System for adjusting the position of a first toothed moving part relative to a support on which the first toothed moving part is pivotably mounted, and timepiece comprising such a system

Publications (2)

Publication Number Publication Date
EP3667435A1 EP3667435A1 (en) 2020-06-17
EP3667435B1 true EP3667435B1 (en) 2022-06-01

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EP18211344.9A Active EP3667435B1 (en) 2018-12-10 2018-12-10 System for adjusting the position of a first toothed moving part relative to a support on which the first toothed moving part is pivotably mounted, and timepiece comprising such a system

Country Status (4)

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US (2) US11550264B2 (en)
EP (1) EP3667435B1 (en)
JP (1) JP6831439B2 (en)
CN (1) CN111290232B (en)

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Also Published As

Publication number Publication date
JP2020095032A (en) 2020-06-18
US11899402B2 (en) 2024-02-13
US20200183332A1 (en) 2020-06-11
CN111290232B (en) 2022-08-02
JP6831439B2 (en) 2021-02-17
EP3667435A1 (en) 2020-06-17
US20230091990A1 (en) 2023-03-23
US11550264B2 (en) 2023-01-10
CN111290232A (en) 2020-06-16

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