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EP4264379B1 - Mechanical movement comprising an information display device - Google Patents

Mechanical movement comprising an information display device Download PDF

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Publication number
EP4264379B1
EP4264379B1 EP21835171.6A EP21835171A EP4264379B1 EP 4264379 B1 EP4264379 B1 EP 4264379B1 EP 21835171 A EP21835171 A EP 21835171A EP 4264379 B1 EP4264379 B1 EP 4264379B1
Authority
EP
European Patent Office
Prior art keywords
movement
indicator member
mobile
cavity
arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21835171.6A
Other languages
German (de)
French (fr)
Other versions
EP4264379A1 (en
Inventor
Laurent CALAME
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.)
Manufacture dHorlogerie Audemars Piguet SA
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Manufacture dHorlogerie Audemars Piguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of EP4264379A1 publication Critical patent/EP4264379A1/en
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Publication of EP4264379B1 publication Critical patent/EP4264379B1/en
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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
    • G04B19/04—Hands; Discs with a single mark or the like
    • 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
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/046—Indicating by means of a disc with a mark or window
    • 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
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/202—Indicating by numbered bands, drums, discs, or sheets by means of turning discs
    • 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
    • G04B33/00—Calibers
    • G04B33/06—Calibers of extremely flat shape

Definitions

  • the present invention relates to a mechanical movement comprising a device for displaying information, such as time-related information, for example the time, comprising at least one indicator member for said information mounted to pivot about a pivot axis A.
  • the present invention also relates to a timepiece comprising such a mechanical movement.
  • Devices for displaying information may be, in a conventional manner, of the analog display type.
  • These display devices with traditional handing use a hand for displaying the hours and a hand for displaying the minutes, these two hands moving, by pivoting around the same axis, opposite a dial bearing graduations of the hours and minutes with which they cooperate to display the time.
  • a second hand may complete the display. Substantially at one of their ends, the hour and minute hands are pierced with a hole, allowing the hour and minute hands to be fixed on the barrel of the hour wheel and the cannon-pinion respectively, positioned under the dial.
  • the hour and minute hands are therefore rotated by the hour wheel and by the cannon-pinion respectively via a portion of the hand which passes through the axis of rotation common to the two hands.
  • the distal end of each needle constitutes the indicator part intended to cooperate with the graduations of the dial.
  • This well-known display device has the disadvantage of occupying a significant volume, particularly in the direction of the thickness of the movement, due to the stacking of the different components and the number of necessary stages.
  • the volume available inside the case in which the movement is positioned must be large enough to accommodate, in addition to the movement, a dial placed above the movement and the hands positioned above the dial.
  • This traditional hand-operated display device cannot therefore be used in an ultra-thin mechanical timepiece.
  • Ultra-flat display solutions have been proposed, for example in the patent CH 694786 , using a display device comprising a central disk for displaying the hours and an outer ring for displaying the minutes, concentric with the hour disk.
  • the disk and the ring carry indexes moving in rotation opposite a dial bearing graduations, at appropriate speeds, to display the time.
  • the minute index necessarily appears to be cut off in the center, appearing to be hidden by the central disk. It is therefore not possible to use a traditional pointer type display, with the two hour and minute hands appearing pivoted on the same axis at the center of the display.
  • a solution described in the patent FR 2 461 292 has been proposed to produce an extra-flat electronic watch. It is proposed to position an hour disc and a minute disc in the back of the watch, used as a plate, these discs being transparent solid discs on which are provided markers acting as hour hands and minute hands.
  • the thick elements of the watch such as the motor, the quartz and the battery, are installed outside the field of the display discs, in housings made between the back and the caseband-bezel, so as to obtain an extra-flat watch.
  • the arrangement of the different parts of a mechanical watch is more complex than that of an electronic watch.
  • the use of solid discs has certain drawbacks, in particular a certain inertia.
  • the mass of the solid discs is significant, a great deal of energy is required to set them in motion. This can cause difficulties in ensuring that the very small gap between the solid discs is maintained when the watch is subjected to unexpected shocks, for example.
  • the use of solid discs made of transparent material has the further disadvantage of creating a parallax problem occurring when viewing at an angle to the display device. Indeed, stacking one or more transparent discs with the glass accentuates the parallax effect, which can thus distort the accuracy of the reading.
  • the document EP 2 791 738 A1 discloses a mechanical movement comprising time information display discs comprising at least one indicator member.
  • the present invention aims to remedy at least in part these drawbacks by proposing a device for displaying information making it possible to produce an ultra-flat mechanical clockwork movement.
  • the invention notably proposes a device for displaying several items of information arranged to indicate the time in the manner of a traditional hand, while being able to be used in an ultra-flat mechanical watch movement.
  • the invention relates to a mechanical movement comprising a device for displaying an indication comprising at least one indicator member of said information mounted to pivot about a pivot axis A, said movement enclosing a cavity receiving at least said first indicator member, said cavity being arranged so that said indicator member is housed entirely inside the movement, said movement comprising at least one mobile arranged to pivot coaxially with the pivot axis A and comprising external peripheral teeth, said mobile being housed in the cavity and arranged to carry said indicator member.
  • said mobile comprises a rim comprising said external peripheral toothing and defining an internal opening, said rim carrying an arm radially passing through said internal opening to be pivotally mounted on said pivot axis A, the indicator member being shown on said arm.
  • Such a construction makes it possible to advantageously eliminate the conventional drive via the barrel of an associated drive wheel which passes through the pivot axis, and which represents a significant bulk. It advantageously allows a gain in height, making it possible to reduce the bulk of the display device.
  • the indicator organ is entirely integrated inside the mechanical movement, and does not come out of the volume occupied by said movement as such, and more particularly in the direction of the thickness of the movement. With such a movement, it is therefore possible to produce an ultra-flat mechanical timepiece, the available interior volume of the case being barely larger than the volume occupied by the movement integrating the display device.
  • the mobile bearing the indicator member used in the present invention makes it possible to have an openwork mobile that does not require significant energy to be set in motion. It also does not cause any parallax problems, even when several mobiles of the same type are superimposed.
  • the display device may comprise at least a first indicator member for a first piece of information and a second indicator member for a second piece of information mounted to pivot about the pivot axis A and arranged in said cavity, said second indicator member being superimposed on said first indicator member, said cavity being arranged so that said first indicator member and said second indicator member are housed entirely inside the movement, and the movement comprises a first mobile arranged to pivot coaxially to the pivot axis A and comprising a first external peripheral toothing, said first mobile being housed in the cavity and arranged to carry said first indicator member and a second mobile housed in the cavity, arranged to pivot coaxially to the pivot axis A, and comprising a second felloe comprising a second external peripheral toothing and defining a second internal opening through which the first indicator member can appear, said second felloe carrying a second arm radially passing through said second opening to be pivotally mounted on said pivot axis A, the second indicator member being shown on said second arm.
  • said first mobile is a solid wheel comprising said first external peripheral toothing, and on which the first indicator member is represented.
  • said first mobile comprises a first felloe comprising said first external peripheral toothing and defining a first internal opening, said first felloe carrying a first arm radially passing through said first opening to be pivotally mounted on said pivot axis A, the first indicator member being shown on said first arm.
  • the display device may comprise at least one third indicator member for a third piece of information arranged in the cavity, superimposed on said second indicator member, said third indicator member being mounted to pivot about the pivot axis A, said cavity being arranged so that said third indicator member is housed entirely inside the movement with the first and second indicator members, and the movement comprises a third mobile member housed in the cavity, arranged to pivot coaxially with the pivot axis A and comprising a third felloe comprising a third external peripheral toothing and defining a third internal opening through which the first and second indicator members can appear, said third felloe carrying a third arm radially passing through said third opening to be pivotally mounted on said pivot axis A, the third indicator member being shown on said third arm.
  • inventions are particularly suitable for displaying the time, for example, the first indicator member displaying the hours, the second indicator member, superimposed on said first indicator member, displaying the minutes, the possible third indicator member, superimposed on said first and second indicator members, displaying the seconds, being mounted pivoting about said pivot axis A, and the cavity is arranged so that said second indicator member and the possible third indicator member are housed entirely inside the movement, with the first indicator member.
  • the present invention also relates to a timepiece comprising a mechanical movement as defined above.
  • the present invention relates to a mechanical watch movement comprising a device for displaying information, in particular information related to time, such as seconds, minutes or hours, these different pieces of information being able to be used individually or by combining at least the hours and minutes to indicate the current time.
  • a watch movement is the mechanical part of a timepiece comprising all the organs and mechanisms which are used to determine the time (the main ones being the motor, the gear train, the escapement and the regulating organ), carried by a frame.
  • the movement is intended to be arranged in a case, called a watch case, with the display device, to constitute the timepiece.
  • the movement 1 occupies a volume which is symbolically represented on the Figures 1 to 6 by a closed, ultra-flat cylinder, so as to represent an ultra-flat movement.
  • the various organs and mechanisms making up the mechanical watch movement are known to those skilled in the art, and are not shown.
  • the display device 2 comprises at least a first indicator member 4 of a first piece of information, such as the time for displaying the time, and a second indicator member 6 of a second piece of information, such as the time for displaying the time, and a second indicator member 6 of a second piece of information.
  • information such as the minute to display the minutes, superimposed on the first indicator member 4, that is to say placed in front of the first indicator member 4 for a user looking at the movement 1.
  • the display device 2 is advantageously a device for displaying the current time HH.MM.
  • Each indicator member 4, 6 is pivotally mounted about the same pivot axis A passing through the center of the display device 2.
  • Each indicator member 4, 6 is represented by a hand having, at one end, a hole 7 through which the pivot axis A passes and, at the other end, a point directed towards the outside of the movement 1.
  • the indicator members 4, 6 appear as a set of hands arranged at the center of the display device 2 to indicate the current time, in a traditional manner.
  • the movement 1 contains a cavity 8 receiving here the first and second indicator members 4, 6, said cavity being arranged so that said first and second indicator members 4, 6 are housed entirely inside the movement 1. More particularly, the cavity 8 has in particular a depth, that is to say in the direction of the thickness of the movement 1, chosen so that the first and second indicator members 4, 6 remain inside the volume occupied by the movement 1, whatever their display position.
  • Said cavity 8 is at least open on the side of the movement on which the display device 2 must be visible to the user.
  • the bottom of the cavity 8 can be closed.
  • the cavity 8 can be formed by a hollow provided in the plate of the movement for example.
  • the cavity 8 can be through, able to reveal the movement under the display device, as in the embodiment shown in the Figures 1 and 2 . This can be particularly useful for making a skeleton watch.
  • the through cavity 8 can be formed for example by arranging the various organs and mechanisms of the movement arranged relative to each other so as to constitute said cavity inside the movement.
  • the movement 1 can be closed by an open plate at the cavity 8, so as to leave visible only the indicator organs 4, 6 of the display device 2.
  • Fixed time indications can be provided on this plate, to cooperate with the indicator organs 4, 6, to display the hours and minutes, like a dial. In the case of a skeleton watch, the movement is left open.
  • the display device 2 In order to be able to be housed entirely inside the movement 1, the display device 2 must have a reduced thickness.
  • At least one of the first and second indicator members, and preferably the first and second indicator members 4 and 6, are advantageously arranged to be driven in rotation about the pivot axis A by an external peripheral zone which does not pass through said pivot axis A.
  • Driving the indicator members 4, 6 from the outside advantageously makes it possible to eliminate the different stages imposed by the traditional construction of the cannons of the hour wheel and the cannon-pinion, and thus to reduce the thickness of the assembly.
  • the movement 1 comprises at least a first lower mobile 10 arranged to pivot coaxially to the pivot axis A and comprising a first external peripheral toothing 12, said first mobile 10 being housed in the cavity 8 and arranged to carry the first indicator member 4.
  • the movement 1 also comprises a second upper mobile 14 arranged to pivot coaxially to the pivot axis A and comprising a second external peripheral toothing 16, said second mobile 14 being housed in the cavity 8 and arranged to carry the second indicator member 6.
  • the first mobile 10 comprises a first rim 10a comprising said first external peripheral toothing 12 and defining a first circular internal opening 18 centered around the pivot axis A, and through which the movement appears, the cavity 8 being a through cavity (or the bottom of the cavity when the latter is closed by the bottom).
  • the first serge 10a carries a first arm 10b radially crossing the first opening 18 in the direction of the pivot axis A, and presenting at its end the hole 7 allowing said arm 10b to be pivotally mounted on the pivot axis A.
  • the arm 10b is in one piece with the felloe 10a and in the same plane as said felloe 10a so as to limit the thickness of the first mobile 10.
  • the first indicator member 4 is represented on the first arm 10b, for example by representing on the arm 10b, at the distal end of the arm 10b, opposite the hole 7, a point directed towards the outside of the movement 1 to constitute the point of a hand, the proximal part of the arm 10b constituting the body of the hand, so as to symbolize the hour hand.
  • the first indicator member 4 represented on the first mobile 10 has been obtained by engraving or by decal on the arm 10b, so that the first indicator member 4 is merged with said arm 10b, so as to have a reduced thickness.
  • the second mobile 14 comprises a second felloe 14a comprising the second external peripheral toothing 16 and defining a second internal opening 20 centered around the pivot axis A, and through which the first indicator member 4 can appear when it is offset relative to the second indicator member 6, as well as the movement, the cavity 8 being a through cavity.
  • the first and second openings 18, 20 are substantially of the same dimensions.
  • the second serge 14a carries a second arm 14b radially passing through said second opening 20 in the direction of the pivot axis A, and having at its end the hole 7 allowing said arm 14b to be pivotally mounted on said pivot axis A.
  • the arm 14b is in one piece with the felloe 14a and in the same plane as said felloe 14a so as to limit the thickness of the second mobile 14.
  • mobiles 10 and 14 are openwork, they are light and do not require significant energy to be set in motion. They also do not cause any parallax problem related to the use of transparent material, even when several mobiles of the same type are superimposed.
  • the second indicator member 6 is represented on the second arm 14b, for example by representing on said arm 14b, at the distal end of the arm 14b, opposite the hole 7, a point directed towards the outside of the movement 1 to constitute the point of a hand, the proximal part of the arm 14b constituting the body of the hand, so as to symbolize the minute hand.
  • the second indicator member 6 represented on the second mobile 14 has been obtained by engraving or by decal on the arm 14b, so that the second indicator member 6 is merged with said arm 14b, so as to have a reduced thickness.
  • the second mobile 14 is superimposed on the first mobile 10 so as to leave between them, and more particularly between the rims 10a, 14a on the one hand and between the arms 10b, 14b on the other hand, a necessary and sufficient clearance to allow their free rotation.
  • the movement 1 comprises a drive mechanism for the first and second mobiles 10, 14 arranged to cooperate with the first and second external peripheral teeth 12, 16 of said first and second mobiles 10, 14 respectively.
  • Such a drive mechanism comprises in particular gears arranged to kinematically connect the external peripheral teeth 12, 16 to the finishing gear in order to drive the first and second mobiles 10, 14 at the angular speeds appropriate to the corresponding indicator member 4, 6 from the outside, the first and second mobiles 10, 14 being moreover guided in the center.
  • the cavity 8 has a depth determined so that the first and second superimposed indicator organs 4, 6 and their respective superimposed mobiles 10, 14 are housed entirely inside the movement 1, whatever their display position.
  • FIG. 3 Another embodiment is shown in the figure 3 , in which the display device 2′′′ comprises a single indicator member 4.
  • the display device 2′′′ comprises a single indicator member 4.
  • the elements identical to the first embodiment of the Figures 1 and 2 are taken up with the same references.
  • Such an indicator organ 4 is for example a chronograph hand.
  • the indicator member 4 is pivotally mounted about the pivot axis A, passing through the center of the display device 2′′′.
  • the indicator member 4 is represented by a needle having, at one end, a hole 7 through which the pivot axis A passes and, at the other end, a point directed towards the outside of the movement 1′′′.
  • Said movement 1′′′ encloses the cavity 8 receiving said indicator member 4, said cavity 8 being arranged so that said indicator member 4 is housed entirely inside the movement 1′′′.
  • the movement 1′′′ comprises a mobile 10 arranged to pivot coaxially with the pivot axis A and comprising an external peripheral toothing 12, said mobile 10 being housed in the cavity 8 and arranged to carry said indicator member 4.
  • the mobile 10 comprises a rim 10a comprising said external peripheral toothing 12 and defining an internal opening 18, said rim 10a carrying an arm 10b radially passing through said internal opening 18 to be pivotally mounted on said pivot axis A, the indicator member 4 being shown on said arm 10b.
  • the indicator member 4 shown on the mobile 10 has been obtained by engraving or by decaling on the arm 10b, so that the indicator member 4 is merged with said arm 10b, so as to have a reduced thickness.
  • Such an openwork mobile 10 is lightweight and does not require significant energy to be set in motion. It also does not cause any parallax problems associated with the use of a transparent material.
  • a drive mechanism for the mobile 10 is provided, arranged to cooperate with the external peripheral toothing 12 of said mobile 10 in order to drive the mobile 10 at an angular speed appropriate to the indicator member 4 from the outside, the mobile 10 being further guided in the center.
  • the display device 2' comprises a first indicator member 4' of a first information, such as the time, a second indicator member 6 of a second information, such as the minutes, and a third indicator member 30 of a third information, such as the seconds.
  • first information such as the time
  • second indicator member 6 of a second information
  • third indicator member 30 of a third information, such as the seconds.
  • the elements identical to the embodiments of the Figures 1 to 3 are taken up with the same references.
  • the display device 2' is also advantageously a device for displaying the time HH.MM.SS.
  • the third indicator member 30, here for displaying the seconds, is superimposed on the second indicator member, here for the minutes 6, that is to say placed in front of the second indicator member 6 for a user looking at the movement 1'.
  • All the indicator members 4', 6 and 30 are pivotally mounted about the same pivot axis A passing through the center of the display device 2'.
  • Each indicator member 4', 6 and 30 is represented by a hand having, at one end, a hole 7', 7 through which the pivot axis A passes and, at the other end, a point directed towards the outside of the movement 1'.
  • the indicator members 4', 6 and 30 appear as a set of hands arranged at the center of the display device 2' to indicate the current time and the second, in a traditional manner.
  • the first lower wheel 10' is a solid wheel comprising the first external peripheral toothing 12 and pierced in its center by the hole 7' through which the pivot axis A passes.
  • the solid wheel of the first wheel 10' constitutes a dial background for the display device 2'.
  • the cavity 8 can be closed by the background or open out, the background of the display device 2' being constituted by the solid wheel of the first wheel 10'.
  • the first hour indicator member 4' is shown directly on the solid wheel of the first mobile 10' so that the first indicator member 4' and the bottom of the display device 2' are merged, so as to have a reduced thickness.
  • the first indicator member 4' is shown in the form of an hour hand whose tip is directed towards the outside of the movement and whose body is arranged radially in the direction of the pivot axis A, extending around the hole 7'.
  • the first indicator member 4' shown on the first mobile 10' was obtained by engraving or decal directly on the solid wheel of the first mobile 10'.
  • the second minute indicator organ 6 is identical to that of the first embodiment, with its mobile 14, here in an intermediate position, comprising the rim 14a and the arm 14b, and the external peripheral toothing 16. Through the internal opening 20 appears the solid wheel of the first mobile 10' with the first indicator organ 4'.
  • the portion of the arm 14b, between its junction with the rim 14a and the tip of the second indicator member 6, can be thinned in order to better highlight said indicator member 6, as shown in figure 8 .
  • the third indicator member 30 is arranged in the cavity 8, superimposed on the second indicator member 6, pivotally mounted about the pivot axis A.
  • the cavity 8 is arranged so that said third indicator member 30 is housed entirely inside the movement 1' with the first and second indicator members 4', 6, as shown in FIG. figure 6 .
  • the third indicator member 30 is arranged to be driven in rotation about the pivot axis A by a peripheral zone which does not pass through said pivot axis A.
  • the movement 1' comprises a third upper mobile 32 arranged to pivot coaxially with the pivot axis A and comprising a third external peripheral toothing 34, said third mobile 32 being housed in the cavity 8 and arranged to carry the third indicator member 30.
  • the third mobile 32 comprises a third rim 32a comprising the third external peripheral toothing 34 and defining a third internal opening 36 centered around the pivot axis A, and through which the first and second indicator members 4', 6 can appear when they are offset relative to the third indicator member 30, as well as the solid wheel of the first mobile 10'.
  • the second and third openings 20, 36 are substantially of the same dimensions.
  • the third serge 32a carries a third arm 32b radially passing through the third opening 36 in the direction of the pivot axis A, and having at its end the hole 7 allowing said arm 32b to be pivotally mounted on said pivot axis A.
  • the arm 32b is in one piece with the felloe 32a and in the same plane as said felloe 32a so as to limit the thickness of the third mobile 32.
  • the third indicator member 30 is represented on the third arm 32b, for example by representing on said arm 32b, at the distal end of the arm 32b, opposite the hole 7, a point directed towards the outside of the movement 1' to constitute the point of a hand, the proximal part of the arm 32b constituting the body of the hand, so as to symbolize the seconds hand.
  • the third indicator member 30 represented on the third mobile 32 has been obtained by engraving or by decal on the arm 32b, so that the third indicator member 30 is merged with said arm 32b, so as to have a reduced thickness.
  • the third mobile 32 is superimposed on the second mobile 14 so as to leave between them, and more particularly between the felloe 14a, 32a on the one hand and between the arms 14b, 32b on the other hand, a clearance necessary and sufficient to allow their free rotation.
  • the second mobile 14 is superimposed on the first mobile 10' so as to leave between them, and more particularly between the felloe 14a with the arm 14b and the solid wheel, a clearance necessary and sufficient to allow their free rotation.
  • the movement 1' comprises a drive mechanism for the third mobile 32 arranged to cooperate with the third external peripheral toothing 34 of the third mobile 32.
  • Such a drive mechanism notably comprises a gear train arranged to kinematically connect the external peripheral toothing 34 to the finishing gear train in order to drive the third mobile 32 at the angular speed appropriate to the indicator organ 30 from the outside, the third mobile 32 being moreover guided in the center.
  • the cavity 8 has a depth determined so that the first, second and third superimposed indicator organs 4', 6 and 30 and their respective superimposed mobiles 10', 14, 32 are housed entirely inside the movement 1', whatever their display position.
  • the first hour indicator member can be carried by the same first mobile as that of the first embodiment, having a rim, an arm on which said first hour indicator member is shown, and an internal opening through which the movement appears.
  • the movement of the invention makes it possible, for example, to produce a device for displaying the current time of the ultra-flat traditional hand type, by eliminating the different levels imposed by the traditional construction of the cannons of the hour wheel and the cannon-pinion, the different mobiles carrying the indicator organs being driven from the outside while being guided in the center, and by using at least one or two upper mobiles consisting of ultra-flat open needle-shaped discs, revealing the lower mobile carrying the first time indicator organ.
  • the use of these two or three ultra-flat mobiles further makes it possible to reduce the thickness of the display device, in order to be able to integrate it entirely into a movement to form an ultra-flat timepiece with a traditional hand.
  • the mobiles used being advantageously openworked, they are light and do not require significant energy to be set in motion. They also do not cause parallax problems related to the use of transparent material, even when several mobiles of the same type are superimposed.
  • the movement of the invention can include other indicator organs which are not housed entirely inside said movement.

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Description

Domaine techniqueTechnical field

La présente invention concerne un mouvement mécanique comprenant un dispositif d'affichage d'une information, telle qu'une information liée au temps, par exemple l'heure, comprenant au moins un organe indicateur de ladite information monté pivotant autour d'un axe de pivotement A.The present invention relates to a mechanical movement comprising a device for displaying information, such as time-related information, for example the time, comprising at least one indicator member for said information mounted to pivot about a pivot axis A.

La présente invention concerne également une pièce d'horlogerie comprenant un tel mouvement mécanique.The present invention also relates to a timepiece comprising such a mechanical movement.

Etat de la techniqueState of the art

Les dispositifs d'affichage d'une information, telle qu'une information liée au temps, par exemple l'heure, et plus particulièrement de l'heure courante, peuvent être, d'une manière classique, de type affichage analogique. Ces dispositifs d'affichage à aiguillage traditionnel utilisent une aiguille pour l'affichage des heures et une aiguille pour l'affichage des minutes, ces deux aiguilles se déplaçant, en pivotant autour d'un même axe, en regard d'un cadran portant des graduations des heures et des minutes avec lesquelles elles coopèrent pour afficher l'heure. Une aiguille des secondes peut compléter l'affichage. Sensiblement à l'une de leurs extrémités, les aiguilles des heures et des minutes sont percées d'un trou, permettant la fixation des aiguilles des heures et des minutes sur le canon de la roue des heures et de la chaussée respectivement, positionnées sous le cadran. Les aiguilles des heures et des minutes sont donc entrainées en rotation par la roue des heures et par la chaussée respectivement via une portion d'aiguille qui passe par l'axe de rotation commun aux deux aiguilles. L'extrémité distale de chaque aiguille constitue la partie indicatrice destinée à coopérer avec les graduations du cadran.Devices for displaying information, such as time-related information, for example the time, and more particularly the current time, may be, in a conventional manner, of the analog display type. These display devices with traditional handing use a hand for displaying the hours and a hand for displaying the minutes, these two hands moving, by pivoting around the same axis, opposite a dial bearing graduations of the hours and minutes with which they cooperate to display the time. A second hand may complete the display. Substantially at one of their ends, the hour and minute hands are pierced with a hole, allowing the hour and minute hands to be fixed on the barrel of the hour wheel and the cannon-pinion respectively, positioned under the dial. The hour and minute hands are therefore rotated by the hour wheel and by the cannon-pinion respectively via a portion of the hand which passes through the axis of rotation common to the two hands. The distal end of each needle constitutes the indicator part intended to cooperate with the graduations of the dial.

Ce dispositif d'affichage bien connu présente toutefois l'inconvénient d'occuper un volume important, notamment dans le sens de l'épaisseur du mouvement, du fait de l'empilement des différents composants et du nombre d'étages nécessaires. De ce fait, le volume disponible à l'intérieur de la boite dans laquelle le mouvement est positionné doit être suffisamment grand pour accueillir, en plus du mouvement, un cadran placé au-dessus du mouvement et les aiguilles positionnées au-dessus du cadran. Ce dispositif d'affichage à aiguillage traditionnel ne peut donc pas être utilisé dans une pièce d'horlogerie mécanique ultraplate.This well-known display device, however, has the disadvantage of occupying a significant volume, particularly in the direction of the thickness of the movement, due to the stacking of the different components and the number of necessary stages. As a result, the volume available inside the case in which the movement is positioned must be large enough to accommodate, in addition to the movement, a dial placed above the movement and the hands positioned above the dial. This traditional hand-operated display device cannot therefore be used in an ultra-thin mechanical timepiece.

Des solutions d'affichage ultraplat ont été proposées, par exemple dans le brevet CH 694786 , en utilisant un dispositif d'affichage comprenant un disque central pour l'affichage des heures et un anneau extérieur pour l'affichage des minutes, concentrique au disque des heures. Le disque et l'anneau portent des index se déplaçant en rotation en regard d'un cadran portant des graduations, à des vitesses appropriées, pour afficher l'heure. Toutefois, dans ce dispositif, l'index des minutes apparait obligatoirement comme étant coupé au centre, semblant caché par le disque central. Il n'est donc pas possible d'utiliser un affichage de type aiguillage traditionnel, avec les deux aiguilles des heures et des minutes apparaissant pivotées sur un même axe au centre de l'affichage.Ultra-flat display solutions have been proposed, for example in the patent CH 694786 , using a display device comprising a central disk for displaying the hours and an outer ring for displaying the minutes, concentric with the hour disk. The disk and the ring carry indexes moving in rotation opposite a dial bearing graduations, at appropriate speeds, to display the time. However, in this device, the minute index necessarily appears to be cut off in the center, appearing to be hidden by the central disk. It is therefore not possible to use a traditional pointer type display, with the two hour and minute hands appearing pivoted on the same axis at the center of the display.

Une autre solution de dispositif d'affichage ultraplat de l'heure courant a été décrite dans le brevet CH 712411 . Dans ce dispositif, il est prévu que la roue des heures porte une indication destinée à coopérer avec une première indication fixe pour indiquer les heures, et que la roue des minutes, d'axe de rotation différent de celui de la roue des heures, porte une indication destinée à coopérer avec une deuxième indication fixe pour indiquer les minutes, les première et deuxième indications fixes étant portées par le bâti du mouvement horloger. Grâce à ces caractéristiques, les roues des minutes et des heures jouent directement le rôle des organes d'affichage des minutes, respectivement, des heures, tandis que les graduations correspondantes sont portées directement par le bâti du mouvement horloger, par exemple par la platine. Ainsi, ce dispositif d'affichage permet de réduire à la fois le nombre de composants nécessaires et l'encombrement du dispositif d'affichage en référence aux dispositifs d'affichage connus. Toutefois, là encore, il ne permet pas un affichage de type aiguillage traditionnel, avec les deux aiguilles des heures et des minutes pivotées sur un même axe au centre de l'affichage.Another solution for an ultra-flat current time display device has been described in the patent CH 712411 . In this device, it is provided that the hour wheel bears an indication intended to cooperate with a first fixed indication to indicate the hours, and that the minute wheel, with a rotation axis different from that of the hour wheel, bears an indication intended to cooperate with a second fixed indication to indicate the minutes, the first and second fixed indications being borne by the frame of the watch movement. Thanks to these characteristics, the minute and hour wheels directly play the role of the display members for the minutes, respectively, the hours, while the corresponding graduations are borne directly by the frame of the watch movement, for example by the plate. Thus, this display device makes it possible to reduce both the number of components required and the size of the display device with reference to known display devices. However, here again, it does not allow a traditional pointer-type display, with the two hour and minute hands pivoted on the same axis at the center of the display.

Une solution décrite dans le brevet FR 2 461 292 a été proposée pour réaliser une montre électronique extraplate. Il est proposé de positionner un disque des heures et un disque des minutes dans le fond de la montre, utilisé comme platine, ces disques étant des disques transparents pleins sur lesquels sont prévus des repères faisant office d'aiguille des heures et d'aiguille des minutes. Les éléments épais de la montre, tels que le moteur, le quartz et la pile, sont implantés hors du champ des disques d'affichage, dans des logements pratiqués entre le fond et la carrure-lunette, de manière à obtenir une montre extra-plate. Toutefois, l'agencement des différents organes d'une montre mécanique est plus complexe que celui d'une montre électronique. De plus, l'utilisation de disques pleins présente certains inconvénients notamment une certaine inertie. La masse des disques pleins étant importante, une grande énergie est nécessaire pour leur mise en mouvement. Cela peut engendrer des difficultés à garantir le maintien du très faible interstice entre les disques pleins lorsque la montre subit par exemple des chocs inopinés. En outre, l'utilisation de disques pleins en matière transparente a pour autre inconvénient de créer un problème de parallaxe survenant lors d'une vision oblique par rapport au dispositif d'affichage. En effet, l'empilement d'un ou de plusieurs disques transparents avec la glace accentue l'effet de parallaxe, ce qui peut ainsi fausser la précision de la lecture.A solution described in the patent FR 2 461 292 has been proposed to produce an extra-flat electronic watch. It is proposed to position an hour disc and a minute disc in the back of the watch, used as a plate, these discs being transparent solid discs on which are provided markers acting as hour hands and minute hands. The thick elements of the watch, such as the motor, the quartz and the battery, are installed outside the field of the display discs, in housings made between the back and the caseband-bezel, so as to obtain an extra-flat watch. However, the arrangement of the different parts of a mechanical watch is more complex than that of an electronic watch. In addition, the use of solid discs has certain drawbacks, in particular a certain inertia. Since the mass of the solid discs is significant, a great deal of energy is required to set them in motion. This can cause difficulties in ensuring that the very small gap between the solid discs is maintained when the watch is subjected to unexpected shocks, for example. In addition, the use of solid discs made of transparent material has the further disadvantage of creating a parallax problem occurring when viewing at an angle to the display device. Indeed, stacking one or more transparent discs with the glass accentuates the parallax effect, which can thus distort the accuracy of the reading.

Le document EP 2 791 738 A1 divulgue un mouvement mécanique comprenant des disques d'affichage d'une information horaire comprenant au moins un organe indicateur.The document EP 2 791 738 A1 discloses a mechanical movement comprising time information display discs comprising at least one indicator member.

La présente invention vise à remédier au moins en partie à ces inconvénients en proposant un dispositif d'affichage d'une information permettant de réaliser un mouvement mécanique d'horlogerie ultraplat.The present invention aims to remedy at least in part these drawbacks by proposing a device for displaying information making it possible to produce an ultra-flat mechanical clockwork movement.

L'invention propose notamment un dispositif d'affichage de plusieurs informations agencées pour indiquer l'heure à la manière d'un aiguillage traditionnel, tout en pouvant être utilisé dans un mouvement mécanique d'horlogerie ultraplat.The invention notably proposes a device for displaying several items of information arranged to indicate the time in the manner of a traditional hand, while being able to be used in an ultra-flat mechanical watch movement.

Divulgation de l'inventionDisclosure of the invention

A cet effet, l'invention concerne un mouvement mécanique comprenant un dispositif d'affichage d'une indication comprenant au moins un organe indicateur de ladite information monté pivotant autour d'un axe de pivotement A, ledit mouvement renfermant une cavité recevant au moins ledit premier organe indicateur, ladite cavité étant agencée pour que ledit organe indicateur soit logé entièrement à l'intérieur du mouvement, ledit mouvement comprenant au moins un mobile agencé pivotant coaxialement à l'axe de pivotement A et comprenant une denture périphérique extérieure, ledit mobile étant logé dans la cavité et agencé pour porter ledit organe indicateur.For this purpose, the invention relates to a mechanical movement comprising a device for displaying an indication comprising at least one indicator member of said information mounted to pivot about a pivot axis A, said movement enclosing a cavity receiving at least said first indicator member, said cavity being arranged so that said indicator member is housed entirely inside the movement, said movement comprising at least one mobile arranged to pivot coaxially with the pivot axis A and comprising external peripheral teeth, said mobile being housed in the cavity and arranged to carry said indicator member.

Selon l'invention, ledit mobile comprend une serge comportant ladite denture périphérique extérieure et définissant une ouverture intérieure, ladite serge portant un bras traversant radialement ladite ouverture intérieure pour être monté pivotant sur ledit axe de pivotement A, l'organe indicateur étant représenté sur ledit bras.According to the invention, said mobile comprises a rim comprising said external peripheral toothing and defining an internal opening, said rim carrying an arm radially passing through said internal opening to be pivotally mounted on said pivot axis A, the indicator member being shown on said arm.

Une telle construction permet de supprimer avantageusement l'entrainement classique via le canon d'une roue d'entrainement associée qui passe par l'axe de pivotement, et qui représente un encombrement important. Elle permet avantageusement un gain de hauteur, permettant de réduire l'encombrement du dispositif d'affichage.Such a construction makes it possible to advantageously eliminate the conventional drive via the barrel of an associated drive wheel which passes through the pivot axis, and which represents a significant bulk. It advantageously allows a gain in height, making it possible to reduce the bulk of the display device.

Ainsi, l'organe indicateur est entièrement intégré à l'intérieur du mouvement mécanique , et ne sort pas du volume occupé par ledit mouvement en tant que tel, et plus particulièrement dans le sens de l'épaisseur du mouvement. Avec un tel mouvement, il est donc possible de réaliser une pièce d'horlogerie mécanique ultraplate, le volume intérieur disponible de la boite étant à peine plus grand que le volume occupé par le mouvement intégrant le dispositif d'affichage.Thus, the indicator organ is entirely integrated inside the mechanical movement, and does not come out of the volume occupied by said movement as such, and more particularly in the direction of the thickness of the movement. With such a movement, it is therefore possible to produce an ultra-flat mechanical timepiece, the available interior volume of the case being barely larger than the volume occupied by the movement integrating the display device.

De plus, le mobile portant l'organe indicateur utilisé dans la présente invention permet d'avoir un mobile ajouré ne nécessitant pas une énergie importante pour être mis en mouvement. Il n'entraine pas non plus de problème de parallaxe, même lorsque plusieurs mobiles du même type sont superposés.In addition, the mobile bearing the indicator member used in the present invention makes it possible to have an openwork mobile that does not require significant energy to be set in motion. It also does not cause any parallax problems, even when several mobiles of the same type are superimposed.

Avantageusement, le dispositif d'affichage peut comprendre au moins un premier organe indicateur d'une première information et un deuxième organe indicateur d'une deuxième information montés pivotants autour de l'axe de pivotement A et disposés dans ladite cavité, ledit deuxième organe indicateur étant superposé audit premier organe indicateur, ladite cavité étant agencée pour que ledit premier organe indicateur et ledit deuxième organe indicateur soient logés entièrement à l'intérieur du mouvement, et le mouvement comprend un premier mobile agencé pivotant coaxialement à l'axe de pivotement A et comprenant une première denture périphérique extérieure, ledit premier mobile étant logé dans la cavité et agencé pour porter ledit premier organe indicateur et un deuxième mobile logé dans la cavité, agencé pivotant coaxialement à l'axe de pivotement A, et comprenant une deuxième serge comportant une deuxième denture périphérique extérieure et définissant une deuxième ouverture intérieure à travers laquelle peut apparaitre le premier organe indicateur, ladite deuxième serge portant un deuxième bras traversant radialement ladite deuxième ouverture pour être monté pivotant sur ledit axe de pivotement A, le deuxième organe indicateur étant représenté sur ledit deuxième bras.Advantageously, the display device may comprise at least a first indicator member for a first piece of information and a second indicator member for a second piece of information mounted to pivot about the pivot axis A and arranged in said cavity, said second indicator member being superimposed on said first indicator member, said cavity being arranged so that said first indicator member and said second indicator member are housed entirely inside the movement, and the movement comprises a first mobile arranged to pivot coaxially to the pivot axis A and comprising a first external peripheral toothing, said first mobile being housed in the cavity and arranged to carry said first indicator member and a second mobile housed in the cavity, arranged to pivot coaxially to the pivot axis A, and comprising a second felloe comprising a second external peripheral toothing and defining a second internal opening through which the first indicator member can appear, said second felloe carrying a second arm radially passing through said second opening to be pivotally mounted on said pivot axis A, the second indicator member being shown on said second arm.

Selon un premier mode de réalisation, ledit premier mobile est une roue pleine comprenant ladite première denture périphérique extérieure, et sur laquelle est représenté le premier organe indicateur.According to a first embodiment, said first mobile is a solid wheel comprising said first external peripheral toothing, and on which the first indicator member is represented.

Selon un autre mode de réalisation, ledit premier mobile comprend une première serge comportant ladite première denture périphérique extérieure et définissant une première ouverture intérieure, ladite première serge portant un premier bras traversant radialement ladite première ouverture pour être monté pivotant sur ledit axe de pivotement A, le premier organe indicateur étant représenté sur ledit premier bras.According to another embodiment, said first mobile comprises a first felloe comprising said first external peripheral toothing and defining a first internal opening, said first felloe carrying a first arm radially passing through said first opening to be pivotally mounted on said pivot axis A, the first indicator member being shown on said first arm.

Avantageusement, le dispositif d'affichage peut comprendre au moins un troisième organe indicateur d'une troisième information disposé dans la cavité, superposé audit deuxième organe indicateur, ledit troisième organe indicateur étant monté pivotant autour de l'axe de pivotement A, ladite cavité étant agencée pour que ledit troisième organe indicateur soit logé entièrement à l'intérieur du mouvement avec les premier et deuxième organes indicateurs, et le mouvement comprend un troisième mobile logé dans la cavité, agencé pivotant coaxialement à l'axe de pivotement A et comprenant une troisième serge comportant une troisième denture périphérique extérieure et définissant une troisième ouverture intérieure à travers laquelle peuvent apparaitre les premier et deuxième organes indicateurs, ladite troisième serge portant un troisième bras traversant radialement ladite troisième ouverture pour être monté pivotant sur ledit axe de pivotement A, le troisième organe indicateur étant représenté sur ledit troisième bras.Advantageously, the display device may comprise at least one third indicator member for a third piece of information arranged in the cavity, superimposed on said second indicator member, said third indicator member being mounted to pivot about the pivot axis A, said cavity being arranged so that said third indicator member is housed entirely inside the movement with the first and second indicator members, and the movement comprises a third mobile member housed in the cavity, arranged to pivot coaxially with the pivot axis A and comprising a third felloe comprising a third external peripheral toothing and defining a third internal opening through which the first and second indicator members can appear, said third felloe carrying a third arm radially passing through said third opening to be pivotally mounted on said pivot axis A, the third indicator member being shown on said third arm.

Ces modes de réalisation sont particulièrement adaptés à un affichage de l'heure par exemple, le premier organe indicateur affichant les heures, le deuxième organe indicateur, superposé audit premier organe indicateur, affichant les minutes, l'éventuel troisième organe indicateur, superposé auxdits premier et deuxième organes indicateurs, affichant les secondes, étant montés pivotant autour dudit axe de pivotement A, et la cavité est agencée pour que ledit deuxième organe indicateur et l'éventuel troisième organe indicateur soient logés entièrement à l'intérieur du mouvement, avec le premier organe indicateur.These embodiments are particularly suitable for displaying the time, for example, the first indicator member displaying the hours, the second indicator member, superimposed on said first indicator member, displaying the minutes, the possible third indicator member, superimposed on said first and second indicator members, displaying the seconds, being mounted pivoting about said pivot axis A, and the cavity is arranged so that said second indicator member and the possible third indicator member are housed entirely inside the movement, with the first indicator member.

Ainsi, on obtient un dispositif d'affichage de l'heure courante de type aiguillage traditionnel, entièrement intégré dans le mouvement, permettant de réaliser une pièce d'horlogerie ultraplate.This results in a traditional hand-type current time display device, fully integrated into the movement, making it possible to produce an ultra-flat timepiece.

La présente invention concerne également une pièce d'horlogerie comprenant un mouvement mécanique tel que défini ci-dessus.The present invention also relates to a timepiece comprising a mechanical movement as defined above.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante de différents modes de réalisation de l'invention, donnés à titre d'exemples non limitatifs, et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue isométrique d'un premier mode de réalisation d'un mouvement selon l'invention;
  • la figure 2 représente le mouvement de la figure 1 avec une coupe ;
  • la figure 3 est une vue isométrique coupée d'un deuxième mode de réalisation d'un mouvement selon l'invention ;
  • la figure 4 est une vue isométrique d'un troisième mode de réalisation d'un mouvement selon l'invention;
  • la figure 5 représente le mouvement de la figure 4 avec une coupe ;
  • la figure 6 est une vue en coupe du mouvement de la figure 4 ;
  • la figure 7 est une vue isométrique des mobiles et de leurs organes indicateurs superposés et alignés dans le sens de l'épaisseur du mouvement pour afficher 00h00min00sec ; et
  • la figure 8 est une vue isométrique des mobiles et de leurs organes indicateurs superposés et décalés les uns par rapport aux autres pour afficher une heure courante différente de 00h00min00sec.
Other features and advantages of the present invention will become apparent upon reading the following detailed description of different embodiments of the invention, given as non-limiting examples, and made with reference to the appended drawings in which:
  • there figure 1 is an isometric view of a first embodiment of a movement according to the invention;
  • there figure 2 represents the movement of the figure 1 with a cut;
  • there figure 3 is a cutaway isometric view of a second embodiment of a movement according to the invention;
  • there figure 4 is an isometric view of a third embodiment of a movement according to the invention;
  • there figure 5 represents the movement of the figure 4 with a cut;
  • there figure 6 is a cross-sectional view of the movement of the figure 4 ;
  • there figure 7 is an isometric view of the mobiles and their indicator organs superimposed and aligned in the direction of the thickness of the movement to display 00h00min00sec; and
  • there figure 8 is an isometric view of the mobiles and their indicator organs superimposed and offset relative to each other to display a current time other than 00h00min00sec.

Modes de réalisation de l'inventionEmbodiments of the invention

La présente invention concerne un mouvement mécanique d'horlogerie comprenant un dispositif d'affichage d'une information, notamment une information liée au temps, telle que les secondes, les minutes ou les heures, ces différentes informations pouvant être utilisées individuellement ou en combinant au moins les heures et les minutes pour indiquer l'heure courante. Selon la définition donnée par le Dictionnaire professionnel illustré de l'horlogerie de G.-A. Berner, un mouvement d'horlogerie est la partie mécanique d'une pièce d'horlogerie comprenant l'ensemble des organes et des mécanismes qui servent à déterminer l'heure (les principaux étant le moteur, le rouage de finissage, l'échappement et l'organe régulateur), portés par un bâti. Le mouvement est destiné à être disposé dans une boite, appelée boite de montre, avec le dispositif d'affichage, pour constituer la pièce d'horlogerie. Dans la présente description, on considère que le mouvement 1 occupe un volume qui est représenté symboliquement sur les figures 1 à 6 par un cylindre fermé, ultraplat, de manière à représenter un mouvement ultraplat. Les différents organes et mécanismes composant le mouvement mécanique horloger sont connus de l'homme du métier, et ne sont pas représentés.The present invention relates to a mechanical watch movement comprising a device for displaying information, in particular information related to time, such as seconds, minutes or hours, these different pieces of information being able to be used individually or by combining at least the hours and minutes to indicate the current time. According to the definition given by the Dictionnaire professionnel illustré de l'horlogerie by G.-A. Berner, a watch movement is the mechanical part of a timepiece comprising all the organs and mechanisms which are used to determine the time (the main ones being the motor, the gear train, the escapement and the regulating organ), carried by a frame. The movement is intended to be arranged in a case, called a watch case, with the display device, to constitute the timepiece. In the present description, it is considered that the movement 1 occupies a volume which is symbolically represented on the Figures 1 to 6 by a closed, ultra-flat cylinder, so as to represent an ultra-flat movement. The various organs and mechanisms making up the mechanical watch movement are known to those skilled in the art, and are not shown.

D'une manière traditionnelle, et en référence aux figures 1 et 2 représentant un premier mode de réalisation de l'invention, le dispositif d'affichage2 comprend au moins un premier organe indicateur 4 d'une première information, telle que l'heure pour afficher l'heure, et un deuxième organe indicateur 6 d'une deuxième information, telle que la minute pour afficher les minutes, superposé au premier organe indicateur 4, c'est-à-dire placé devant le premier organe indicateur 4 pour un utilisateur qui regarde le mouvement 1. Ainsi, le dispositif d'affichage 2 est avantageusement un dispositif d'affichage de l'heure courante HH.MM.In a traditional way, and with reference to the Figures 1 and 2 representing a first embodiment of the invention, the display device 2 comprises at least a first indicator member 4 of a first piece of information, such as the time for displaying the time, and a second indicator member 6 of a second piece of information, such as the time for displaying the time, and a second indicator member 6 of a second piece of information. information, such as the minute to display the minutes, superimposed on the first indicator member 4, that is to say placed in front of the first indicator member 4 for a user looking at the movement 1. Thus, the display device 2 is advantageously a device for displaying the current time HH.MM.

Chaque organe indicateur 4, 6 est monté pivotant autour d'un même axe de pivotement A passant par le centre du dispositif d'affichage 2. Chaque organe indicateur 4, 6 est représenté par une aiguille présentant, à une extrémité, un trou 7 à travers lequel passe l'axe de pivotement A et, à l'autre extrémité, une pointe dirigée vers l'extérieur du mouvement 1. Ainsi, les organes indicateurs 4, 6 apparaissent comme un jeu d'aiguilles disposé au centre du dispositif d'affichage 2 pour indiquer l'heure courante, de manière traditionnelle.Each indicator member 4, 6 is pivotally mounted about the same pivot axis A passing through the center of the display device 2. Each indicator member 4, 6 is represented by a hand having, at one end, a hole 7 through which the pivot axis A passes and, at the other end, a point directed towards the outside of the movement 1. Thus, the indicator members 4, 6 appear as a set of hands arranged at the center of the display device 2 to indicate the current time, in a traditional manner.

Le mouvement 1 renferme une cavité 8 recevant ici les premier et deuxième organes indicateurs 4, 6, ladite cavité étant agencée pour que lesdits premier et deuxième organes indicateurs 4, 6 soient logés entièrement à l'intérieur du mouvement 1. Plus particulièrement, la cavité 8 présente notamment une profondeur, c'est-à-dire dans le sens de l'épaisseur du mouvement 1, choisie pour que les premier et deuxième organes indicateurs 4, 6 restent à l'intérieur du volume occupé par le mouvement 1, quelle que soit leur position d'affichage.The movement 1 contains a cavity 8 receiving here the first and second indicator members 4, 6, said cavity being arranged so that said first and second indicator members 4, 6 are housed entirely inside the movement 1. More particularly, the cavity 8 has in particular a depth, that is to say in the direction of the thickness of the movement 1, chosen so that the first and second indicator members 4, 6 remain inside the volume occupied by the movement 1, whatever their display position.

Ladite cavité 8 est au moins ouverte du côté du mouvement sur lequel le dispositif d'affichage 2 doit être visible par l'utilisateur. Le fond de la cavité 8 peut être fermé. Dans ce cas, la cavité 8 peut être constituée par une creusure prévue dans la platine du mouvement par exemple. Dans une autre variante, la cavité 8 peut être traversante, pouvant laisser apparaitre le mouvement sous le dispositif d'affichage, comme dans le mode de réalisation représenté sur les figures 1 et 2. Cela peut être particulièrement utile pour réaliser une montre squelette. La cavité 8 traversante peut être formée par exemple par l'agencement des différents organes et mécanismes du mouvement disposés les uns par rapport aux autres de manière à constituer ladite cavité à l'intérieur du mouvement.Said cavity 8 is at least open on the side of the movement on which the display device 2 must be visible to the user. The bottom of the cavity 8 can be closed. In this case, the cavity 8 can be formed by a hollow provided in the plate of the movement for example. In another variant, the cavity 8 can be through, able to reveal the movement under the display device, as in the embodiment shown in the Figures 1 and 2 . This can be particularly useful for making a skeleton watch. The through cavity 8 can be formed for example by arranging the various organs and mechanisms of the movement arranged relative to each other so as to constitute said cavity inside the movement.

Le mouvement 1 peut être fermé par une plaque ouverte au niveau de la cavité 8, de manière à ne laisser visible que les organes indicateurs 4, 6 du dispositif d'affichage 2. Des indications horaires, fixes, peuvent être prévues sur cette plaque, pour coopérer avec les organes indicateurs 4, 6, pour afficher les heures et les minutes, à l'instar d'un cadran. Dans le cas d'une montre squelette, le mouvement est laissé ouvert.The movement 1 can be closed by an open plate at the cavity 8, so as to leave visible only the indicator organs 4, 6 of the display device 2. Fixed time indications can be provided on this plate, to cooperate with the indicator organs 4, 6, to display the hours and minutes, like a dial. In the case of a skeleton watch, the movement is left open.

Afin de pouvoir être logé intégralement à l'intérieur du mouvement 1, le dispositif d'affichage 2 doit présenter une épaisseur réduite.In order to be able to be housed entirely inside the movement 1, the display device 2 must have a reduced thickness.

A cet effet, au moins l'un des premier et deuxième organes indicateurs, et de préférence, les premier et deuxième organes indicateurs 4 et 6, sont avantageusement agencés pour être entraînés en rotation autour de l'axe de pivotement A par une zone périphérique extérieure qui ne passe pas par ledit axe de pivotement A. L'entrainement des organes indicateurs 4, 6 par l'extérieur permet avantageusement de supprimer les différents étages imposés par la construction traditionnelle des canons de la roue des heures et de la chaussée, et de réduire ainsi l'épaisseur de l'ensemble.For this purpose, at least one of the first and second indicator members, and preferably the first and second indicator members 4 and 6, are advantageously arranged to be driven in rotation about the pivot axis A by an external peripheral zone which does not pass through said pivot axis A. Driving the indicator members 4, 6 from the outside advantageously makes it possible to eliminate the different stages imposed by the traditional construction of the cannons of the hour wheel and the cannon-pinion, and thus to reduce the thickness of the assembly.

De préférence, le mouvement 1 comprend au moins un premier mobile inférieur 10 agencé pivotant coaxialement à l'axe de pivotement A et comprenant une première denture périphérique extérieure 12, ledit premier mobile 10 étant logé dans la cavité 8 et agencé pour porter le premier organe indicateur 4. Le mouvement 1 comprend également un deuxième mobile supérieur 14 agencé pivotant coaxialement à l'axe de pivotement A et comprenant une deuxième denture périphérique extérieure 16, ledit deuxième mobile 14 étant logé dans la cavité 8 et agencé pour porter le deuxième organe indicateur 6.Preferably, the movement 1 comprises at least a first lower mobile 10 arranged to pivot coaxially to the pivot axis A and comprising a first external peripheral toothing 12, said first mobile 10 being housed in the cavity 8 and arranged to carry the first indicator member 4. The movement 1 also comprises a second upper mobile 14 arranged to pivot coaxially to the pivot axis A and comprising a second external peripheral toothing 16, said second mobile 14 being housed in the cavity 8 and arranged to carry the second indicator member 6.

Dans le mode de réalisation représenté sur les figures 1 et 2, et conformément à l'invention, le premier mobile 10 comprend une première serge 10a comportant ladite première denture périphérique extérieure 12 et définissant une première ouverture 18 intérieure circulaire centrée autour de l'axe de pivotement A, et à travers laquelle apparait le mouvement, la cavité 8 étant traversante (ou le fond de la cavité lorsque celle-ci est fermée par le fond).In the embodiment shown in the Figures 1 and 2 , and in accordance with the invention, the first mobile 10 comprises a first rim 10a comprising said first external peripheral toothing 12 and defining a first circular internal opening 18 centered around the pivot axis A, and through which the movement appears, the cavity 8 being a through cavity (or the bottom of the cavity when the latter is closed by the bottom).

La première serge 10a porte un premier bras 10b traversant radialement la première ouverture 18 en direction de l'axe de pivotement A, et présentant à son extrémité le trou 7 permettant audit bras 10b d'être monté pivotant sur l'axe de pivotement A.The first serge 10a carries a first arm 10b radially crossing the first opening 18 in the direction of the pivot axis A, and presenting at its end the hole 7 allowing said arm 10b to be pivotally mounted on the pivot axis A.

De préférence, le bras 10b est d'une seule pièce avec la serge 10a et dans un même plan que ladite serge 10a de manière à limiter l'épaisseur du premier mobile 10.Preferably, the arm 10b is in one piece with the felloe 10a and in the same plane as said felloe 10a so as to limit the thickness of the first mobile 10.

Le premier organe indicateur 4 est représenté sur le premier bras 10b, par exemple en représentant sur le bras 10b, à l'extrémité distale du bras 10b, opposée au trou 7, une pointe dirigée vers l'extérieur du mouvement 1 pour constituer la pointe d'une aiguille, la partie proximale du bras 10b constituant le corps de l'aiguille, de manière à symboliser l'aiguille des heures. D'une manière avantageuse, le premier organe indicateur 4 représenté sur le premier mobile 10 a été obtenu par gravage ou par décalque sur le bras 10b, de sorte que le premier organe indicateur 4 est confondu avec ledit bras 10b, de manière à présenter une épaisseur réduite.The first indicator member 4 is represented on the first arm 10b, for example by representing on the arm 10b, at the distal end of the arm 10b, opposite the hole 7, a point directed towards the outside of the movement 1 to constitute the point of a hand, the proximal part of the arm 10b constituting the body of the hand, so as to symbolize the hour hand. Advantageously, the first indicator member 4 represented on the first mobile 10 has been obtained by engraving or by decal on the arm 10b, so that the first indicator member 4 is merged with said arm 10b, so as to have a reduced thickness.

De la même manière, le deuxième mobile 14 comprend une deuxième serge 14a comportant la deuxième denture périphérique extérieure 16 et définissant une deuxième ouverture 20 intérieure centrée autour de l'axe de pivotement A, et à travers laquelle peut apparaitre le premier organe indicateur 4 quand il est décalé par rapport au deuxième organe indicateur 6, ainsi que le mouvement, la cavité 8 étant traversante. Les première et deuxième ouvertures 18, 20 sont sensiblement de mêmes dimensions.In the same way, the second mobile 14 comprises a second felloe 14a comprising the second external peripheral toothing 16 and defining a second internal opening 20 centered around the pivot axis A, and through which the first indicator member 4 can appear when it is offset relative to the second indicator member 6, as well as the movement, the cavity 8 being a through cavity. The first and second openings 18, 20 are substantially of the same dimensions.

La deuxième serge 14a porte un deuxième bras 14b traversant radialement ladite deuxième ouverture 20 en direction de l'axe de pivotement A, et présentant à son extrémité le trou 7 permettant audit bras 14b d'être monté pivotant sur ledit axe de pivotement A.The second serge 14a carries a second arm 14b radially passing through said second opening 20 in the direction of the pivot axis A, and having at its end the hole 7 allowing said arm 14b to be pivotally mounted on said pivot axis A.

De préférence, le bras 14b est d'une seule pièce avec la serge 14a et dans un même plan que ladite serge 14a de manière à limiter l'épaisseur du deuxième mobile 14.Preferably, the arm 14b is in one piece with the felloe 14a and in the same plane as said felloe 14a so as to limit the thickness of the second mobile 14.

Les mobiles 10 et 14 étant ajourés, ils sont légers et ne nécessitent pas une énergie importante pour être mis en mouvement. Ils n'entrainent pas non plus de problème de parallaxe lié à l'utilisation d'un matériau transparent, même lorsque plusieurs mobiles du même type sont superposés.Since mobiles 10 and 14 are openwork, they are light and do not require significant energy to be set in motion. They also do not cause any parallax problem related to the use of transparent material, even when several mobiles of the same type are superimposed.

Le deuxième organe indicateur 6 est représenté sur le deuxième bras 14b, par exemple en représentant sur ledit bras 14b, à l'extrémité distale du bras 14b, opposée au trou 7, une pointe dirigée vers l'extérieur du mouvement 1 pour constituer la pointe d'une aiguille, la partie proximale du bras 14b constituant le corps de l'aiguille, de manière à symboliser l'aiguille des minutes. D'une manière avantageuse, le deuxième organe indicateur 6 représenté sur le deuxième mobile 14 a été obtenu par gravage ou par décalque sur le bras 14b, de sorte que le deuxième organe indicateur 6 est confondu avec ledit bras 14b, de manière à présenter une épaisseur réduite.The second indicator member 6 is represented on the second arm 14b, for example by representing on said arm 14b, at the distal end of the arm 14b, opposite the hole 7, a point directed towards the outside of the movement 1 to constitute the point of a hand, the proximal part of the arm 14b constituting the body of the hand, so as to symbolize the minute hand. Advantageously, the second indicator member 6 represented on the second mobile 14 has been obtained by engraving or by decal on the arm 14b, so that the second indicator member 6 is merged with said arm 14b, so as to have a reduced thickness.

Le deuxième mobile 14 est superposé au premier mobile 10 de manière à laisser entre eux, et plus particulièrement entre les serges 10a, 14a d'une part et entre les bras 10b, 14b, d'autre part, un jeu nécessaire et suffisant pour permettre leur libre rotation.The second mobile 14 is superimposed on the first mobile 10 so as to leave between them, and more particularly between the rims 10a, 14a on the one hand and between the arms 10b, 14b on the other hand, a necessary and sufficient clearance to allow their free rotation.

En outre, le mouvement 1 comprend un mécanisme d'entrainement des premier et deuxième mobiles 10, 14 agencé pour coopérer avec les première et deuxième dentures périphériques extérieures 12, 16 desdits premier et deuxième mobiles 10, 14 respectivement.Furthermore, the movement 1 comprises a drive mechanism for the first and second mobiles 10, 14 arranged to cooperate with the first and second external peripheral teeth 12, 16 of said first and second mobiles 10, 14 respectively.

Un tel mécanisme d'entrainement comprend notamment des rouages agencés pour relier cinématiquement les dentures périphériques extérieures 12, 16 au rouage de finissage afin d'entrainer les premier et deuxième mobiles 10, 14 aux vitesses angulaires appropriées à l'organe indicateur correspondant 4, 6 par l'extérieur, les premier et deuxième mobile 10, 14 étant par ailleurs guidés au centre.Such a drive mechanism comprises in particular gears arranged to kinematically connect the external peripheral teeth 12, 16 to the finishing gear in order to drive the first and second mobiles 10, 14 at the angular speeds appropriate to the corresponding indicator member 4, 6 from the outside, the first and second mobiles 10, 14 being moreover guided in the center.

La cavité 8 présente une profondeur déterminée pour que les premier et deuxième organes indicateurs 4, 6 superposés et leurs mobiles respectifs 10, 14 superposés soient logés entièrement à l'intérieur du mouvement 1, quelle que soit leur position d'affichage.The cavity 8 has a depth determined so that the first and second superimposed indicator organs 4, 6 and their respective superimposed mobiles 10, 14 are housed entirely inside the movement 1, whatever their display position.

Un autre mode de réalisation est représenté sur la figure 3, dans lequel le dispositif d'affichage 2‴ comprend un seul organe indicateur 4. Les éléments identiques au premier mode de réalisation des figures 1 et 2 sont repris avec les mêmes références. Un tel organe indicateur 4 est par exemple une aiguille de chronographe.Another embodiment is shown in the figure 3 , in which the display device 2‴ comprises a single indicator member 4. The elements identical to the first embodiment of the Figures 1 and 2 are taken up with the same references. Such an indicator organ 4 is for example a chronograph hand.

L'organe indicateur 4 est monté pivotant autour de l'axe de pivotement A, passant par le centre du dispositif d'affichage 2‴. Comme décrit ci-dessus, l'organe indicateur 4 est représenté par une aiguille présentant, à une extrémité, un trou 7 à travers lequel passe l'axe de pivotement A et, à l'autre extrémité, une pointe dirigée vers l'extérieur du mouvement 1‴. Ledit mouvement 1‴ renferme la cavité 8 recevant ledit organe indicateur 4, ladite cavité 8 étant agencée pour que ledit organe indicateur 4 soit logé entièrement à l'intérieur du mouvement 1‴.The indicator member 4 is pivotally mounted about the pivot axis A, passing through the center of the display device 2‴. As described above, the indicator member 4 is represented by a needle having, at one end, a hole 7 through which the pivot axis A passes and, at the other end, a point directed towards the outside of the movement 1‴. Said movement 1‴ encloses the cavity 8 receiving said indicator member 4, said cavity 8 being arranged so that said indicator member 4 is housed entirely inside the movement 1‴.

Le mouvement 1‴ comprend un mobile 10 agencé pivotant coaxialement à l'axe de pivotement A et comprenant une denture périphérique extérieure 12, ledit mobile 10 étant logé dans la cavité 8 et agencé pour porter ledit organe indicateur 4.The movement 1‴ comprises a mobile 10 arranged to pivot coaxially with the pivot axis A and comprising an external peripheral toothing 12, said mobile 10 being housed in the cavity 8 and arranged to carry said indicator member 4.

Conformément à l'invention, le mobile 10 comprend une serge 10a comportant ladite denture périphérique extérieure 12 et définissant une ouverture intérieure 18, ladite serge 10a portant un bras 10b traversant radialement ladite ouverture intérieure 18 pour être monté pivotant sur ledit axe de pivotement A, l'organe indicateur 4 étant représenté sur ledit bras 10b. D'une manière avantageuse, l'organe indicateur 4 représenté sur le mobile 10 a été obtenu par gravage ou par décalque sur le bras 10b, de sorte que l'organe indicateur 4 est confondu avec ledit bras 10b, de manière à présenter une épaisseur réduite.According to the invention, the mobile 10 comprises a rim 10a comprising said external peripheral toothing 12 and defining an internal opening 18, said rim 10a carrying an arm 10b radially passing through said internal opening 18 to be pivotally mounted on said pivot axis A, the indicator member 4 being shown on said arm 10b. Advantageously, the indicator member 4 shown on the mobile 10 has been obtained by engraving or by decaling on the arm 10b, so that the indicator member 4 is merged with said arm 10b, so as to have a reduced thickness.

Un tel mobile 10 ajouré est léger et ne nécessite pas une énergie importante pour être mis en mouvement. Il n'entraine pas non plus de problème de parallaxe lié à l'utilisation d'un matériau transparent.Such an openwork mobile 10 is lightweight and does not require significant energy to be set in motion. It also does not cause any parallax problems associated with the use of a transparent material.

Comme décrit ci-dessus, il est prévu un mécanisme d'entrainement du mobile 10 agencé pour coopérer avec la denture périphérique extérieure 12 dudit mobile 10 afin d'entrainer le mobile 10 à une vitesse angulaire appropriée à l'organe indicateur 4 par l'extérieur, le mobile 10 étant par ailleurs guidé au centre.As described above, a drive mechanism for the mobile 10 is provided, arranged to cooperate with the external peripheral toothing 12 of said mobile 10 in order to drive the mobile 10 at an angular speed appropriate to the indicator member 4 from the outside, the mobile 10 being further guided in the center.

Un autre mode de réalisation est représenté sur les figures 4 à 8, dans lequel le dispositif d'affichage 2' comprend un premier organe indicateur 4' d'une première information, telle que l'heure, un deuxième organe indicateur 6 d'une deuxième information, telle que les minutes, et un troisième organe indicateur 30 d'une troisième information, telle que les secondes. Les éléments identiques aux modes de réalisation des figures 1 à 3 sont repris avec les mêmes références. Ainsi le dispositif d'affichage 2' est également avantageusement un dispositif d'affichage de l'heure HH.MM.SS.Another embodiment is shown in the Figures 4 to 8 , in which the display device 2' comprises a first indicator member 4' of a first information, such as the time, a second indicator member 6 of a second information, such as the minutes, and a third indicator member 30 of a third information, such as the seconds. The elements identical to the embodiments of the Figures 1 to 3 are taken up with the same references. Thus the display device 2' is also advantageously a device for displaying the time HH.MM.SS.

Le troisième organe indicateur 30, ici pour afficher les secondes, est superposé au deuxième organe indicateur, ici des minutes 6, c'est-à-dire placé devant le deuxième organe indicateur 6 pour un utilisateur qui regarde le mouvement 1'. Tous les organes indicateurs 4', 6 et 30 sont montés pivotant autour d'un même axe de pivotement A passant par le centre du dispositif d'affichage 2'. Chaque organe indicateur 4', 6 et 30 est représenté par une aiguille présentant, à une extrémité, un trou 7', 7 à travers lequel passe l'axe de pivotement A et, à l'autre extrémité, une pointe dirigée vers l'extérieur du mouvement 1'. Ainsi, les organes indicateurs 4', 6 et 30 apparaissent comme un jeu d'aiguilles disposé au centre du dispositif d'affichage 2' pour indiquer l'heure courante et la seconde, de manière traditionnelle.The third indicator member 30, here for displaying the seconds, is superimposed on the second indicator member, here for the minutes 6, that is to say placed in front of the second indicator member 6 for a user looking at the movement 1'. All the indicator members 4', 6 and 30 are pivotally mounted about the same pivot axis A passing through the center of the display device 2'. Each indicator member 4', 6 and 30 is represented by a hand having, at one end, a hole 7', 7 through which the pivot axis A passes and, at the other end, a point directed towards the outside of the movement 1'. Thus, the indicator members 4', 6 and 30 appear as a set of hands arranged at the center of the display device 2' to indicate the current time and the second, in a traditional manner.

Dans ce mode de réalisation, le premier mobile inférieur 10' est une roue pleine comprenant la première denture périphérique extérieure 12 et percée en son centre par le trou 7' par lequel passe l'axe de pivotement A. Ainsi, la roue pleine du premier mobile 10' constitue un fond de cadran pour le dispositif d'affichage 2'. La cavité 8 peut être fermée par le fond ou débouchante, le fond du dispositif d'affichage 2' étant constitué par la roue pleine du premier mobile 10'.In this embodiment, the first lower wheel 10' is a solid wheel comprising the first external peripheral toothing 12 and pierced in its center by the hole 7' through which the pivot axis A passes. Thus, the solid wheel of the first wheel 10' constitutes a dial background for the display device 2'. The cavity 8 can be closed by the background or open out, the background of the display device 2' being constituted by the solid wheel of the first wheel 10'.

Comme le montrent plus spécifiquement les figures 7 et 8, le premier organe indicateur des heures 4' est représenté directement sur la roue pleine du premier mobile 10' de sorte que le premier organe indicateur 4' et le fond du dispositif d'affichage 2' sont confondus, de manière à présenter une épaisseur réduite. Le premier organe indicateur 4' est représenté sous la forme d'une aiguille des heures dont la pointe est dirigée vers l'extérieur du mouvement et dont le corps est disposé radialement en direction de l'axe de pivotement A, en s'étendant autour du trou 7'. D'une manière avantageuse, le premier organe indicateur 4' représenté sur le premier mobile 10' a été obtenu par gravage ou décalque directement sur la roue pleine du premier mobile 10'.As more specifically shown by the Figures 7 and 8 , the first hour indicator member 4' is shown directly on the solid wheel of the first mobile 10' so that the first indicator member 4' and the bottom of the display device 2' are merged, so as to have a reduced thickness. The first indicator member 4' is shown in the form of an hour hand whose tip is directed towards the outside of the movement and whose body is arranged radially in the direction of the pivot axis A, extending around the hole 7'. Advantageously, the first indicator member 4' shown on the first mobile 10' was obtained by engraving or decal directly on the solid wheel of the first mobile 10'.

Le deuxième organe indicateur 6 des minutes est identique à celui du premier mode de réalisation, avec son mobile 14, ici en position intermédiaire, comprenant la serge 14a et le bras 14b, et la denture périphérique extérieure 16. A travers l'ouverture intérieure 20 apparait la roue pleine du premier mobile 10' avec le premier organe indicateur 4'.The second minute indicator organ 6 is identical to that of the first embodiment, with its mobile 14, here in an intermediate position, comprising the rim 14a and the arm 14b, and the external peripheral toothing 16. Through the internal opening 20 appears the solid wheel of the first mobile 10' with the first indicator organ 4'.

La partie du bras 14b, entre sa jonction avec la serge 14a et la pointe du deuxième organe indicateur 6, peut être amincie afin de mieux faire ressortir ledit organe indicateur 6, comme le montre la figure 8.The portion of the arm 14b, between its junction with the rim 14a and the tip of the second indicator member 6, can be thinned in order to better highlight said indicator member 6, as shown in figure 8 .

Le troisième organe indicateur 30 est disposé dans la cavité 8, superposé au deuxième organe indicateur 6, monté pivotant autour de l'axe de pivotement A. La cavité 8 est agencée pour que ledit troisième organe indicateur 30 soit logé entièrement à l'intérieur du mouvement 1' avec les premier et deuxième organes indicateurs 4', 6, comme le montre la figure 6.The third indicator member 30 is arranged in the cavity 8, superimposed on the second indicator member 6, pivotally mounted about the pivot axis A. The cavity 8 is arranged so that said third indicator member 30 is housed entirely inside the movement 1' with the first and second indicator members 4', 6, as shown in FIG. figure 6 .

Le troisième organe indicateur 30 est agencé pour être entraîné en rotation autour de l'axe de pivotement A par une zone périphérique qui ne passe pas par ledit axe de pivotement A.The third indicator member 30 is arranged to be driven in rotation about the pivot axis A by a peripheral zone which does not pass through said pivot axis A.

A cet effet, le mouvement 1' comprend un troisième mobile supérieur 32 agencé pivotant coaxialement à l'axe de pivotement A et comprenant une troisième denture périphérique extérieure 34, ledit troisième mobile 32 étant logé dans la cavité 8 et agencé pour porter le troisième organe indicateur 30.For this purpose, the movement 1' comprises a third upper mobile 32 arranged to pivot coaxially with the pivot axis A and comprising a third external peripheral toothing 34, said third mobile 32 being housed in the cavity 8 and arranged to carry the third indicator member 30.

Le troisième mobile 32 comprend une troisième serge 32a comportant la troisième denture périphérique extérieure 34 et définissant une troisième ouverture 36 intérieure centrée autour de l'axe de pivotement A, et à travers laquelle peuvent apparaitre les premier et deuxième organes indicateurs 4', 6 quand ils sont décalés par rapport au troisième organe indicateur 30, ainsi que la roue pleine du premier mobile 10'. Les deuxième et troisième ouvertures 20, 36 sont sensiblement de mêmes dimensions.The third mobile 32 comprises a third rim 32a comprising the third external peripheral toothing 34 and defining a third internal opening 36 centered around the pivot axis A, and through which the first and second indicator members 4', 6 can appear when they are offset relative to the third indicator member 30, as well as the solid wheel of the first mobile 10'. The second and third openings 20, 36 are substantially of the same dimensions.

La troisième serge 32a porte un troisième bras 32b traversant radialement la troisième ouverture 36 en direction de l'axe de pivotement A, et présentant à son extrémité le trou 7 permettant audit bras 32b d'être monté pivotant sur ledit axe de pivotement A.The third serge 32a carries a third arm 32b radially passing through the third opening 36 in the direction of the pivot axis A, and having at its end the hole 7 allowing said arm 32b to be pivotally mounted on said pivot axis A.

De préférence, le bras 32b est d'une seule pièce avec la serge 32a et dans un même plan que ladite serge 32a de manière à limiter l'épaisseur du troisième mobile 32.Preferably, the arm 32b is in one piece with the felloe 32a and in the same plane as said felloe 32a so as to limit the thickness of the third mobile 32.

Le troisième organe indicateur 30 est représenté sur le troisième bras 32b, par exemple en représentant sur ledit bras 32b, à l'extrémité distale du bras 32b, opposée au trou 7, une pointe dirigée vers l'extérieur du mouvement 1' pour constituer la pointe d'une aiguille, la partie proximale du bras 32b constituant le corps de l'aiguille, de manière à symboliser l'aiguille des secondes. D'une manière avantageuse, le troisième organe indicateur 30 représenté sur le troisième mobile 32 a été obtenu par gravage ou par décalque sur le bras 32b, de sorte que le troisième organe indicateur 30 est confondu avec ledit bras 32b, de manière à présenter une épaisseur réduite.The third indicator member 30 is represented on the third arm 32b, for example by representing on said arm 32b, at the distal end of the arm 32b, opposite the hole 7, a point directed towards the outside of the movement 1' to constitute the point of a hand, the proximal part of the arm 32b constituting the body of the hand, so as to symbolize the seconds hand. Advantageously, the third indicator member 30 represented on the third mobile 32 has been obtained by engraving or by decal on the arm 32b, so that the third indicator member 30 is merged with said arm 32b, so as to have a reduced thickness.

Le troisième mobile 32 est superposé au deuxième mobile 14 de manière à laisser entre eux, et plus particulièrement entre les serges 14a, 32a d'une part et entre les bras 14b, 32b, d'autre part, un jeu nécessaire et suffisant pour permettre leur libre rotation. De même, le deuxième mobile 14 est superposé au premier mobile 10' de manière à laisser entre eux, et plus particulièrement entre la serge 14a avec le bras 14b et la roue pleine, un jeu nécessaire et suffisant pour permettre leur libre rotation.The third mobile 32 is superimposed on the second mobile 14 so as to leave between them, and more particularly between the felloe 14a, 32a on the one hand and between the arms 14b, 32b on the other hand, a clearance necessary and sufficient to allow their free rotation. Similarly, the second mobile 14 is superimposed on the first mobile 10' so as to leave between them, and more particularly between the felloe 14a with the arm 14b and the solid wheel, a clearance necessary and sufficient to allow their free rotation.

En outre, le mouvement 1' comprend un mécanisme d'entrainement du troisième mobile 32 agencé pour coopérer avec la troisième denture périphérique extérieure 34 du troisième mobile 32.Furthermore, the movement 1' comprises a drive mechanism for the third mobile 32 arranged to cooperate with the third external peripheral toothing 34 of the third mobile 32.

Un tel mécanisme d'entrainement comprend notamment un rouage agencé pour relier cinématiquement la denture périphérique extérieure 34 au rouage de finissage afin d'entrainer le troisième mobile 32 à la vitesse angulaire appropriée à l'organe indicateur 30 par l'extérieur, le troisième mobile 32 étant par ailleurs guidé au centre.Such a drive mechanism notably comprises a gear train arranged to kinematically connect the external peripheral toothing 34 to the finishing gear train in order to drive the third mobile 32 at the angular speed appropriate to the indicator organ 30 from the outside, the third mobile 32 being moreover guided in the center.

La cavité 8 présente une profondeur déterminée pour que les premier, deuxième et troisième organes indicateurs 4', 6 et 30 superposés et leurs mobiles respectifs 10', 14, 32 superposés soient logés entièrement à l'intérieur du mouvement 1', quelle que soit leur position d'affichage.The cavity 8 has a depth determined so that the first, second and third superimposed indicator organs 4', 6 and 30 and their respective superimposed mobiles 10', 14, 32 are housed entirely inside the movement 1', whatever their display position.

Il est bien évident que selon une variante non représentée du deuxième mode de réalisation, le premier organe indicateur des heures peut être porté par le même premier mobile que celui du premier mode de réalisation, présentant une serge, un bras sur lequel est représenté ledit premier organe indicateur des heures, et une ouverture intérieure à travers laquelle le mouvement apparait.It is quite obvious that according to a variant not shown of the second embodiment, the first hour indicator member can be carried by the same first mobile as that of the first embodiment, having a rim, an arm on which said first hour indicator member is shown, and an internal opening through which the movement appears.

Le mouvement de l'invention permet de réaliser par exemple un dispositif d'affichage de l'heure courante de type aiguillage traditionnel ultraplat, grâce à la suppression des différents étages imposés par la construction traditionnelle des canons de la roue des heures et de la chaussée, les différents mobiles portant les organes indicateurs étant entraînés par l'extérieur tout en étant guidés au centre, et à l'utilisation d'au moins un ou deux mobiles supérieurs constitués par des disques ultraplats ouverts en forme d'aiguille, laissant apparaitre le mobile inférieur portant le premier organe indicateur de l'heure. L'utilisation de ces deux ou trois mobiles ultraplats permet encore de réduire l'épaisseur du dispositif d'affichage, afin de pouvoir l'intégrer entièrement dans un mouvement pour former une pièce d'horlogerie ultraplate avec un aiguillage traditionnel. De plus, les mobiles utilisés étant avantageusement ajourés, ils sont légers et ne nécessitent pas une énergie importante pour être mis en mouvement. Ils n'entraînent pas non plus de problème de parallaxe lié à l'utilisation d'un matériau transparent, même lorsque plusieurs mobiles du même type sont superposés.The movement of the invention makes it possible, for example, to produce a device for displaying the current time of the ultra-flat traditional hand type, by eliminating the different levels imposed by the traditional construction of the cannons of the hour wheel and the cannon-pinion, the different mobiles carrying the indicator organs being driven from the outside while being guided in the center, and by using at least one or two upper mobiles consisting of ultra-flat open needle-shaped discs, revealing the lower mobile carrying the first time indicator organ. The use of these two or three ultra-flat mobiles further makes it possible to reduce the thickness of the display device, in order to be able to integrate it entirely into a movement to form an ultra-flat timepiece with a traditional hand. In addition, the mobiles used being advantageously openworked, they are light and do not require significant energy to be set in motion. They also do not cause parallax problems related to the use of transparent material, even when several mobiles of the same type are superimposed.

Il est bien évident que le mouvement de l'invention peut comprendre d'autres organes indicateurs qui ne sont pas logés entièrement à l'intérieur dudit mouvement.It is obvious that the movement of the invention can include other indicator organs which are not housed entirely inside said movement.

Claims (19)

  1. A mechanical movement (1, 1', 1‴) comprising an information display device (2, 2', 2‴) comprising at least one indicator member (4, 6, 30) for said information, mounted pivoting about a pivot axis A, said movement (1, 1', 1‴) enclosing a cavity (8) receiving at least said indicator member (4, 6, 30), said cavity (8) being arranged so that said indicator member (4, 6, 30) is housed entirely inside the movement (1, 1', 1‴), said movement comprising at least one mobile (10, 14, 32) arranged pivoting coaxially with the pivot axis A and comprising an outer peripheral toothing (12, 16, 34), said mobile (10, 14, 32) being housed in the cavity (8) and arranged to carry said indicator member (4, 6, 30), characterized in that said mobile (10, 14, 32) comprises a felloe (10a, 14a, 32a) including said outer peripheral toothing (12, 16, 34) and defining an inner opening (18, 20, 36), said felloe (10a, 14a, 32a) carrying an arm (10b, 14b, 32b) passing radially through said inner opening (18, 20, 36) in order to be mounted pivoting on said pivot axis A, the indicator member (4, 6, 30) being represented on said arm (10b, 14b, 32b).
  2. The movement (1, 1', 1‴) according to Claim 1, characterized in that it is closed by an open plate at the level of said cavity (8).
  3. The movement (1, 1', 1‴) according to any one of the preceding claims, characterized in that said cavity (8) is passed through.
  4. The movement (1, 1', 1‴) according to any one of the preceding claims, characterized in that it comprises a drive mechanism of the mobile (10, 14, 32) arranged to cooperate with the outer peripheral toothing (12, 16, 34) of said mobile (10, 14, 32).
  5. The movement (1, 1') according to any one of the preceding claims, characterized in that the display device (2, 2') comprises at least one first indicator member (4, 4') for a first piece of information and a second indicator member (6) for a second piece of information mounted pivoting about the pivot axis A and disposed in said cavity (8), said second indicator member (6) being superimposed on said first indicator member (4), said cavity (8) being arranged so that said first indicator member (4, 4') and said second indicator member (6) are housed entirely inside the movement (1, 1'), and in that the movement comprises a first mobile (10, 10') arranged pivoting coaxially with the pivot axis A and comprising a first outer peripheral toothing (12), said first mobile (10, 10') being housed in the cavity (8) and arranged to carry said first indicator member (4, 4') and a second mobile (14) housed in the cavity (8), arranged pivoting coaxially with the pivot axis A, and comprising a second felloe (14a) including a second outer peripheral toothing (16) and defining a second inner opening (20), through which the first indicator member (4, 4') can appear, said second felloe (14a) carrying a second arm (14b) passing radially through said second opening (20) in order to be mounted pivoting on said pivot axis A, the second indicator member (6) being represented on said second arm (14b).
  6. The movement (1') according to Claim 5, characterized in that said first mobile (10') is a solid wheel comprising said first outer peripheral toothing (12), and on which the first indicator member (4') is represented.
  7. The movement (1, 1‴) according to Claim 5, characterized in that said first mobile (10) comprises a first felloe (10a) including said first outer peripheral toothing (12) and defining a first inner opening (18), said first felloe (10a) carrying a first arm (10b) passing radially through said first opening (18) in order to be mounted pivoting on said pivot axis A, the first indicator member (4) being represented on said first arm (10b).
  8. The movement (1, 1') according to any one of Claims 5 to 7, characterized in that the second mobile (14) is superimposed on the first mobile (10, 10') so as to leave between them the required adequate play to allow them to rotate freely.
  9. The movement (1, 1') according to any one of Claims 5 to 8, characterized in that it comprises a drive mechanism for the first and second mobiles (10, 10', 14) arranged to cooperate with the first and second outer peripheral toothing (12, 16) of said first and second mobiles (10, 10', 14) respectively.
  10. The movement (1') according to any one of Claims 5 to 9, characterized in that the display device (2') comprises at least one third indicator member (30) for a third piece of information disposed in said cavity (8), superimposed on said second indicator member (6), said third indicator member (30) being mounted pivoting about the pivot axis A, said cavity (8) being arranged so that said third indicator member (30) is housed entirely inside the movement (1') with the first and second indicator members (4', 6), and in that the movement comprises a third mobile (32) housed in the cavity (8), arranged pivoting coaxially with the pivot axis A and comprising a third felloe (32a) including a third outer peripheral toothing (34) and defining a third inner opening (36), through which the first and second indicator members (4', 6) can appear, said third felloe (32a) carrying a third arm (32b) passing radially through said third opening (36) in order to be mounted pivoting on said pivot axis A, the third indicator member (30) being represented on said third arm (32b).
  11. The movement (1') according to Claim 10, characterized in that the third mobile (32) is superimposed on the second mobile (14) so as to leave between them the required adequate play to allow them to rotate freely.
  12. The movement (1') according to any one of Claims 10 and 11, characterized in that it comprises a drive mechanism of the third mobile (32) arranged to cooperate with the third outer peripheral toothing (34) of said third mobile (32).
  13. The movement (1, 1') according to Claims 5, 7 or 10, characterized in that at least two of said first (18), second (20) and third (36) openings of the first (10a), second (14a) and third (32a) felloes respectively are substantially of the same dimensions.
  14. The movement (1, 1', 1 ") according to Claim 5, 7 or 10, characterized in that the first arm (10b), respectively the second arm (14b), respectively the third arm (32b), is in one piece and in the same plane as the first felloe (10a), respectively the second felloe (14a), respectively the third felloe (32a).
  15. The movement (1') according to any one of Claims 10 to 14, characterized in that the cavity (8) has a determined depth so that the first, second and third superimposed indicator members (4', 6, 30) and their superimposed respective mobiles (10', 14, 32) are housed entirely inside the movement (1').
  16. The movement (1') according to any one of Claims 10 to 15, characterized in that the display device displays the time, the first piece of information indicated by the first indicator member (4') being the hour, the second piece of information indicated by the second indicator member (6) being the minute, and the third piece of information indicated by the third indicator member (30) being the second.
  17. The movement (1, 1', 1‴) according to any one of the preceding claims, characterized in that the indicator members (4, 4', 6, 30) are represented by hands, the tip of which is directed towards the outside of the movement (1, 1', 1‴).
  18. The movement (1, 1', 1‴) according to any one of the preceding claims, characterized in that the indicator member (4, 4', 6, 30) represented on its respective mobile (10, 10', 14, 32) has been obtained by engraving or transfer.
  19. A timepiece comprising a mechanical movement (1, 1', 1‴) according to any one of Claims 1 to 18.
EP21835171.6A 2020-12-17 2021-12-01 Mechanical movement comprising an information display device Active EP4264379B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01612/20A CH718188A1 (en) 2020-12-17 2020-12-17 Mechanical movement comprising a time display device.
PCT/EP2021/083680 WO2022128458A1 (en) 2020-12-17 2021-12-01 Mechanical movement comprising an information display device

Publications (2)

Publication Number Publication Date
EP4264379A1 EP4264379A1 (en) 2023-10-25
EP4264379B1 true EP4264379B1 (en) 2024-11-27

Family

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Application Number Title Priority Date Filing Date
EP21835171.6A Active EP4264379B1 (en) 2020-12-17 2021-12-01 Mechanical movement comprising an information display device

Country Status (6)

Country Link
US (1) US20240302798A1 (en)
EP (1) EP4264379B1 (en)
JP (1) JP2023553590A (en)
CN (1) CN116648677A (en)
CH (1) CH718188A1 (en)
WO (1) WO2022128458A1 (en)

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FR2461292A1 (en) * 1979-07-12 1981-01-30 Ebauches Sa Electronic watch with quartz resonator - has clockwork outside display region with resonator and battery, with display having two coaxial toothed discs meshing with clockwork
CH694786A5 (en) 2001-03-07 2005-07-29 Etna Vending Technologies B V Coffeemaker.
CH705910B1 (en) * 2011-12-16 2024-07-15 Ali&Co Geneve Sa Mysterious reversible watch.
CH706978B1 (en) * 2012-12-13 2014-03-31 Richemont Int Sa Timepiece e.g. wrist watch, has frame and mobile elements arranged relative to glass such that frame element has portion defining stop for glass in event of deformation of glass to prevent glass from being in contact with mobile element
EP3136187B1 (en) * 2015-08-31 2018-02-28 Glashütter Uhrenbetrieb GmbH Mechanical clock comprising a tourbillon
FR3040799B1 (en) * 2015-09-07 2020-02-07 Kinaöök DYNAMIC DISPLAY DEVICE
CH712411B1 (en) 2016-04-29 2020-03-31 Richemont Int Sa Watch movement including an ultra-thin display of the current time.
JP7024271B2 (en) * 2017-09-13 2022-02-24 カシオ計算機株式会社 Electronic clock
FR3072790B1 (en) * 2017-10-19 2019-10-18 Kinaöök ALLEGE DISC OF WATCH PIECES
CH715106A1 (en) * 2018-06-18 2019-12-30 Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie Display mechanism with non-circular trajectory, in particular elliptical.
JP7298316B2 (en) * 2019-06-07 2023-06-27 セイコーエプソン株式会社 Electronic clock control method and electronic clock
EP3904962B1 (en) * 2020-05-01 2023-08-02 Rolex Sa Device for indexing and device for displaying a time or time-derived indication
CH718187A1 (en) * 2020-12-17 2022-06-30 Mft Dhorlogerie Audemars Piguet Sa Tourbillon for watch movement.
EP4016196B1 (en) * 2020-12-21 2024-08-21 Blancpain SA Timepiece display mechanism with multiple jump
CH718415A1 (en) * 2021-03-09 2022-09-15 Mft Dhorlogerie Audemars Piguet Sa Timepiece comprising a moiré effect display.
JP2023027873A (en) * 2021-08-18 2023-03-03 セイコーエプソン株式会社 Timepiece

Also Published As

Publication number Publication date
US20240302798A1 (en) 2024-09-12
WO2022128458A1 (en) 2022-06-23
JP2023553590A (en) 2023-12-25
CH718188A1 (en) 2022-06-30
EP4264379A1 (en) 2023-10-25
CN116648677A (en) 2023-08-25

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