EP3430481B1 - Uhrwerk mit einer rückläufigen anzeige und einem sprungstundenring - Google Patents

Uhrwerk mit einer rückläufigen anzeige und einem sprungstundenring Download PDF

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Publication number
EP3430481B1
EP3430481B1 EP17712845.1A EP17712845A EP3430481B1 EP 3430481 B1 EP3430481 B1 EP 3430481B1 EP 17712845 A EP17712845 A EP 17712845A EP 3430481 B1 EP3430481 B1 EP 3430481B1
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EP
European Patent Office
Prior art keywords
rotation
ring
correction
rake
retrograde
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EP17712845.1A
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English (en)
French (fr)
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EP3430481A1 (de
Inventor
Yves Gerber
Sébastien MOJON
Guilhem WATRELOT
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Chanel SARL
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G&F Chatelain SA
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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
    • G04B19/06—Dials
    • G04B19/08—Geometrical arrangement of the graduations
    • G04B19/082—Geometrical arrangement of the graduations varying from the normal closed scale
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands

Definitions

  • the present invention relates to a correction mechanism for watch movement with retrograde and jumping display.
  • Retrograde displays are known in watchmaking, that is to say displays in which a hand or a disc rotates in one direction for a given period then returns almost instantaneously to its initial position by rapidly rotating in the opposite direction at the end of this period. period.
  • these retrograde displays are used to indicate the minutes on a scale from 1 to 60 covering an arc of a circle of less than 360°.
  • These retrograde displays free up space on the dial for other indications.
  • the rapid return of the minute indicator every hour creates an animation on the face of the watch.
  • Jumping displays are also known, in which a time indicator jumps almost instantaneously from one value to another. These jumping displays are used in particular for displaying the date in an aperture. They are also sometimes used for other indications, including indications of the current time in an aperture.
  • the expression “jumping display” covers both displays in which the jump is almost instantaneous and so-called trailing displays in which this jump is slower, the advance of the display nevertheless being discontinuous.
  • Watches combining a retrograde display and a jumping display are also known.
  • CH691833 describes an example of a watch comprising a jumping hour display and a retrograde minute display.
  • a minute rake has two toothed parts, one to transmit the movement to the minute display organ and the other to be driven by a pinion with a missing tooth attached to the hour wheel and driven at the rate of one turn per hour.
  • the instantaneous return of the rake corresponds to the displacement of the last tooth of the rake at the level of the missing tooth of the pinion.
  • This correction device has the major drawback of increasing the size of the movement and of being complex.
  • EP0788036B1 concerns a watch with a retrograde minute display and a jumping hour display on a disc. A rocker is raised gradually once per hour by the rotation of a spiral cam attached to the minute wheel.
  • EP1918792A1 describes a watch movement comprising a mechanism for correcting a display, the movement further comprising a cam and a rake making it possible to drive a retrograde mobile.
  • An object of the present invention is to produce a simple correction mechanism for a watch movement combining both a retrograde display and a jumping display.
  • An object of the present invention is to provide a time correction mechanism for a watch movement with a retrograde and jumping display which is free from the limitations of known time-setting mechanisms.
  • Another object is to propose a correction mechanism which allows faster and less constraining correction of the current time.
  • corrections of the clockwise retrograde indicator are transmitted to the jumping hour ring.
  • this makes it possible, for example, to correct the hour indicator jumping clockwise, by jumping one hour each time the minute indicator goes from 59 to 00.
  • This correction of the jumping hour ring can be achieved very simply by employing the jumping hour driving mechanism used during the normal operation of the watch.
  • corrections of the counterclockwise retrograde minute indicator are preferably not transmitted to the jumping hour ring.
  • the usual mechanisms for driving the jumping hours do not usually allow a counter-clockwise jump to be made; they are designed solely to advance the jumping hour ring clockwise, under the action of the gear train. In other words, the correction is not driven by the crown counterclockwise.
  • jumping hour drive mechanisms often feature a cam with a jump, for example a snail cam, which can only be crossed in one direction. By avoiding transmitting the corrections counterclockwise to the jumping hours ring, this avoids having to modify the drive mechanism of this ring.
  • This construction thus makes it possible to produce a simple correction mechanism, making it possible to perform a large number of corrections with little manipulation of the crown, and without having to modify the drive mechanism of the jumping hour ring.
  • a correction blocking mechanism is provided to prevent the correction of the retrograde mobile in the counterclockwise direction in a range around the jump of this mobile, and to authorize it in all other positions of this mobile out of the beach. For example, if the retrograde mobile displays minutes, the mechanism can prevent the counterclockwise correction when the retrograde minutes indicator shows a value in a range including 60 minutes. This avoids the risk of displacement accidental movement of the jumping hour indicator by a counterclockwise correction of the minute slider in this range.
  • This correction blocking mechanism can be linked to the cam sensor, which can be on the rake, and block the rotation of a snail cam in one of the two directions of rotation, when this snail cam is near the jump position of the feeler.
  • the asymmetrical internal toothing may comprise a plurality of teeth with asymmetrical flanks, the drive member being arranged so as to be able to abut against a flank of a tooth of the internal toothing and to be able to drive the hour ring when the retrograde mobile rotates in one direction and to be able to slide on another side of a tooth of the internal gearing when the retrograde mobile rotates in the opposite direction.
  • the movement may comprise a snail cam and a feeler engaged with the snail cam to act on the rake to drive the retrograde mobile.
  • the feeler and the rake can be integrated into a single component, or made up of two separate parts.
  • the movement according to the invention may comprise a spring mounted on the rack and capable of exerting a return force on the drive member in order to press it against the internal teeth of the hour ring.
  • the snail cam rotating in a first direction of rotation can drive the rake and the retrograde mobile in the direction of rotation opposite to the first direction.
  • the movement according to the invention is arranged in such a way as to allow unlimited correction of the display of hours and minutes clockwise.
  • the movement according to the invention can be arranged to allow the hours to be corrected clockwise, in a jumping manner.
  • the movement according to the invention can be arranged in such a way as to allow a correction of the display of the minutes counterclockwise.
  • the movement according to the invention can be arranged in such a way as to allow correction of the display of the minutes counterclockwise only when the minute indicator is in a first range, and to prevent any correction of the display of the minutes counterclockwise when the minute indicator is in a second range.
  • the movement according to the invention may comprise a correction blocking mechanism to prevent the correction of the counterclockwise minutes within a range including the instant of return of the retrograde mobile, and to allow the correction of the counterclockwise minutes out of said beach.
  • This solution has the advantage of correcting the minute over the range 0 to 59 min which does not interfere with the hour disk, and which can therefore be carried out bi-directionally.
  • the rotation of the drive member resting against a second flank of the internal toothing of the ring drives this ring almost instantaneously.
  • This solution has the advantage of allowing adjustment of the retrograde minute and of the jumping hour by the same correcting position of the time-setting stem.
  • This solution has the advantage of being able to adjust the minutes in both directions, clockwise and anti-clockwise.
  • the correction of the counterclockwise minute display can be limited to the interval 0-59 minutes.
  • the figure 1 illustrates the main components of the correction mechanism 1 (also called the time-setting mechanism) of a watch movement according to the invention.
  • This movement comprises a retrograde minute indicator 2, for example a minute hand or a minute ring, mounted on the axis of the retrograde minute wheel set 20.
  • the hours are displayed in a jumping manner in an aperture 8 ( figure 4 ) by means of a jumping hours ring 60.
  • the jumping hours ring 60 is stationary for almost the entire duration of each hour, then passes almost instantaneously or slidingly to the next hour.
  • the first end 31 of a rake 3 follows in rotation a snail cam 5 carried by a trigger drive wheel 52.
  • This trigger drive wheel 52 is driven by wheel 7 of the gear train so that the minute indicator 2 travels the scale of minutes 9 ( fig. 4 to 13 ) in 60 minutes (or 60 minutes minus return time).
  • the correction mechanism is illustrated in figures 2 and 3 in two different positions, “P0” and “P1”, of the winding and correction stem 10.
  • the time-setting stem 10 allows the movement of a sliding pinion 15 between the two positions “P0” and “ P1”.
  • the first correction transmission 16 in turn engages the second correction transmission 18.
  • the second correction return 18 ( figures 2 and 3 ) is hidden by the jumper jumper 12 and engages the drive wheel of the timer train 17 which in turn engages the trigger drive wheel 52, coaxially connected to a snail cam 5.
  • the wheel 17 is provided with friction to prevent the rotation of the snail cam 5 clockwise when the rake is resting against the fall of the snail cam, at minute 0. It is therefore not possible to force the minute indicator to return instantly from the minute 1 at minute 59.
  • the rake 3 has a first end 31 which forms a feeler to follow the periphery of the snail cam 5.
  • the rake and the feeler could also consist of several distinct elements.
  • a rake spring 33 presses the rake against the snail cam 5.
  • the second end 32 of the rake 3 has an oblong opening provided with internal toothing 320.
  • the rake 3 pivots around a pivot point 34 under the action of the snail cam. During this pivoting, the internal toothing 320 of the second end of the rake 32 meshes with the external toothing 200 of the retrograde mobile 20 so that the retrograde indicator 2 carried by the retrograde mobile 20 rotates in the same direction as the second end of the rake 32.
  • a rake stop 35 is linked to the rake 3 and makes it possible to prevent the rotation of the cam-snail 5 clockwise, at least in a blocking range when the feeler 31 is close to the cam jump.
  • the movement of the rake is transmitted to a drive member, constituted here by a tooth 4 articulated on the second end of the rake 32 by means of the axis 41.
  • a return spring 42 exerts a return force on the tooth 4 to press it on toothing 610.
  • Hour indications 6 are carried by the hour ring 60.
  • This ring is mounted on the drive ring 61 of smaller diameter.
  • Drive ring 61 has internal toothing 610 with a plurality of teeth along the entire internal periphery. The spacing between the teeth is regular.
  • the teeth have two asymmetrical flanks 6100 and 6101.
  • the first flank 6100 is almost radial to the diameter of the ring 61 and makes it possible to drive the ring 61 by means of the drive member (tooth) 4.
  • the second flank 6101 is inclined and forms an angle of less than 30° with the tangent of ring 61, so that, when tooth 4 is in contact with second flank 6101, it can slide on this second flank 6101 without 'training, not training ring 61 either.
  • the drive ring 61 further comprises an external toothing 611 having teeth 6110 whose apex is concentric with the drive ring 61, the hollow 6111 between each tooth 6110 being provided to receive the end 620 of a positioning jumper 62.
  • Jumper 62 thus cooperates with external toothing 611 to ensure centering of time indications 6 in an aperture (not shown).
  • the end 620 of this jumper 62 opposes the movement of the ring 61 by engaging in the hollow 6111 between the teeth 6110 of the external toothing of the drive ring 61.
  • the stiffness of the jumper 62 is chosen so that it holds the drive ring in place.
  • the figure 4 illustrates the watch movement at minute 0.
  • the first end of the rake 31 bears against the smallest diameter of the snail cam 5.
  • the retrograde mobile 20 is engaged in the teeth at the end of the toothing 320 in the opening of the rake 32.
  • the tooth 4 is not in contact with the internal toothing 610 of the hour ring 60.
  • the end 35 of the rake stop 3 does not is not in contact with the snail cam 5, or could slide against the periphery of this snail cam.
  • the figure 5 corresponds to a position of the minute hand 2 at minute 17.
  • the drive member 4 (tooth) touches the top of a tooth of the internal toothing 610 of the ring 61, without having any grip on it.
  • the ring therefore remains immobile, its position being fixed by the jumper 62 which cooperates with the hollows 6111 on the outer periphery of the ring 61 ( fig. 1 ).
  • the figure 6 corresponds to a position of the minute hand 2 at minute 35, the finger 4 being in contact with the toothing 6101.
  • the retrograde mobile 20 continues to rotate clockwise and the minute hand 2 to move in the clockwise along the minute scale 9.
  • the drive member 4 teeth comes into contact with an oblique flank 6101 of the internal toothing 610 of the ring 61, without having any grip on it.
  • the ring 61 therefore remains stationary.
  • tooth 4 slides along the toothing of the hour drive ring, without interfering with its position.
  • the minutes can be corrected in both directions by turning the hand-setting stem in one direction or the other. In this range, the correction of the minutes does not cause any movement of the jumping hours ring.
  • the Figure 7A corresponds to a position of the minute hand 2 in a rotation blocking range close to minute 59, for example at minute 57.
  • finger 4 is not yet hooked with toothing 6100.
  • first end of the rake 31 is in contact with the snail cam 5 near the portion 51 of maximum diameter of the latter.
  • the drive member 4 comes into contact with an apex of the internal toothing 610. Once the finger 4 with the toothing 6100, it can drive the ring 61 in the counterclockwise direction, in order to cause a jump of jumping hour if the snail cam 5 continues to rotate counterclockwise.
  • the end 350 of the rake stop 35 bears against the edge of the chute on the periphery of the snail cam 5, and thus blocks its rotation in the clockwise direction.
  • the rake stopper 35 thus acts as a cam rotation locking mechanism, to prevent the cam 5 from rotating clockwise and driving the rake counterclockwise by inadvertently displacing the ring 61 already hooked.
  • the rake stop 35 only acts within a limited range when the feeler 31 is located just before the cam drops; the rotation of the cam 5 remains possible in both directions outside this range.
  • the rotation of the snail cam 5 is blocked in the clockwise direction when the minute indicator is between 57 and 59 minutes.
  • the figure 8 corresponds to a position of the minute hand 2 at minute 60.
  • the first end of the rake 31 is located at the top of the snail cam 5.
  • the drive member 4 teeth has passed the top of the internal toothing 610 and is engaged with a first flank 6100 of the internal toothing 610 of the ring 61.
  • the ring is still held in place by the return jumper 62 ( figure 1 ).
  • the figure 8 and 9 illustrate the beginning of the return to minute 0 of the retrograde indicator 2 and the beginning of the jump of the jumping display.
  • the first end of the rake 31 begins its fall from the top of the snail cam 5.
  • the second end of the rake 32 rotates counterclockwise causing the retrograde indicator 2 positioned at minute 55 and the tooth 4 to rotate in the same direction.
  • the hour ring 60 is then driven counter-clockwise by tooth 4, thanks to the rake spring 33 ( figure 1 ) which gradually disarms.
  • the rake spring 33 ( figure 1 ) transmits to the ring 60 sufficient energy to cause the end 620 ( figure 1 ) of the positioning jumper 62 ( figure 1 ) of the ring 61 of the hollow 6111 ( figure 1 ) of external gearing 611 ( figure 1 ).
  • the rake spring 33 ( figure 1 ) transmits to the ring 60 sufficient energy to cause the end 620 ( figure 1 ) of the positioning jumper 62 ( figure 1 ) of the ring 61 of the hollow 6111 ( figure 1 ) of external gearing 611 ( figure 1 ).
  • Through aperture 8 one can observe the movement of the hour disc 60 counterclockwise, causing a change from hour h to h+1.
  • the figure 10 and 11 illustrate the continuation of the return of the retrograde indicator 2.
  • the retrograde indicator 2 is positioned respectively at minutes 40 and 25.
  • the tooth 4 moves along the first flank of the internal toothing 610. Through the aperture 8, one can observe the movement of the 60 hour disc counterclockwise into a position between two jumping display elements 6.
  • the end 620 ( figure 1 ) of jumper 62 ( figure 1 ) moves along tooth 6110 ( figure 1 ).
  • the figure 12 illustrates the end of the return of the retrograde indicator 2.
  • the retrograde indicator 2 is positioned at minute 17 and tooth 4 is almost at the top of the internal toothing of the hour ring 610, it is soon no longer in taken with the internal toothing 610. Through the aperture 8, one can observe the new jumping display element 6.
  • the jumper 62 ( figure 1 ) has “ fallen back” into a trough 6111 ( figure 1 ) of external gearing 611 ( figure 1 ).
  • the figure 13 illustrates the return of the retrograde indicator 2 at minute 0.
  • the retrograde indicator 2 is positioned at minute 0 and tooth 4 is no longer in contact with the internal teeth of the hour ring 610.
  • the first end of the rake is located at the level of the smallest diameter of the snail cam 5. Through the aperture 8, the new position of the jumping display element 6 can be observed.
  • the correction mechanism 1 thus allows the jumping correction of the hour display in the clockwise direction. This correction is carried out via the minute correction mechanism 1, by turning the time-setting stem 10 to the “P1” correction position. Unlimited amplitude correction can thus be performed clockwise.
  • the rake stop 35 presses against the edge of the chute of the snail cam 5 and prevents the latter from continuing its rotation in clockwise, as explained above. If the user forces, the friction wheel 17 ( figure 1 ) patina and movements of the time-setting stem have no effect.
  • this correction device thus makes it possible to carry out an unlimited correction of the hours and minutes, with, between the end of minute 60 and minute 0, an almost instantaneous return of the minute hand 2 and a synchronized jump of the hour indicator 6.
  • this correction device thus makes it possible to carry out a correction of the minutes only outside the blocking range, for example between minute 57 (or 59) and minute 0.
  • the return spring 44 and the jumper 64 illustrated in the figure 14 make it possible to carry out two separate functions, which cooperate with each other.
  • the return spring 44 makes it possible to control the position of the ring 61 during its counterclockwise rotation, thanks to its cooperation with the internal teeth of the ring 61;
  • the jumper 64 for its part, makes it possible to prevent the ring 61, following the rebound of the ring 61 against the return spring 44 via a tooth of the internal toothing of the ring 61, from being able to rotate clockwise , which would cause a display error.
  • the jumper 62 has a first end (or output end) 620 and a second end (or input end) 622.
  • the two ends have a non-zero inclination with respect to the stops 61110 and 61111 defining the vertical walls of the hollow 6111 of the external toothing 611 of the drive ring 61.
  • the jumper 62 cooperates with a jumper spring 63.
  • the figure 15B illustrates in detail the new shape of jumper 64. It has a first end (or exit end) 640 and a second end (or entry end) 642. Only the first end 640 has a non-zero inclination with respect to the stops 61111 and 61110 defining the recesses 6111 of the outer toothing of the drive ring 61.
  • the second end 642 is indeed substantially parallel to the stops 61111 and 61110 when the jumper 64 is engaged in the recess 6111.
  • This particular shape of the jumper 64 makes it possible to block a clockwise rotation of the drive ring 61.
  • the second end 642 of the jumper 64 is configured so as to block a clockwise rotation of the drive ring 61.
  • the figures 16 to 20 illustrate several top views of the device according to the second embodiment of the invention.
  • the figure 16 illustrates the ring 61 which is rotating counterclockwise, as indicated by the arrow C, driven by the rake 3.
  • the end 442 of the spring 44 is not in contact with the internal teeth of the ring 61
  • the jumper 64 slides on the part between two consecutive recesses 6111 of the external toothing of the ring 61. 442 of the spring 44 is not yet in contact with the internal toothing of the ring 61
  • the figure 17 illustrates the ring 61 which continues to rotate counterclockwise (arrow C): the jumper approaches the hollow 6111.
  • the end 442 of the spring 44 approaches the internal teeth of the ring 61
  • the figure 18 illustrates the ring 61 which continues and completes its counterclockwise rotation (arrow C): the jumper enters the hollow (reference 6111 in figire 17). The end 442 of the spring 44 comes closer to the internal toothing of the ring 61, touching it.
  • the figure 19 illustrates the ring 61 which bounces against the spring 44: in particular a tooth of the internal toothing of the ring 61 comes into contact with the end 442 of the spring 44, in correspondence of the point (or zone) of contact D.
  • the ring 61 following this rebound, is caused to rotate in the opposite direction, that is to say in the clockwise direction.
  • the rebound is notably present when, for example, the spring 33 (illustrated in the figure 1 for example) is fully armed via its eccentric.
  • jumper 62 of the figure 1 was used instead of the jumper 64, its end 622 would allow it to come out of the hollow 6111, allowing the ring 61 to continue its rotation in the clockwise direction. Jumper 62 would therefore come out of hollow 6111 and would be unable to bring the number back into the aperture, which would lead to a display problem.
  • the saltire 64 of the figure 14 has a shape which prevents it from coming out of the hollow 6111 after the rebound of the ring 61, in blocking any clockwise rotation of the ring 61 and thus avoiding any display error.
  • the jumper 64 is in abutment in the hollow 6111 of the external toothing of the ring, which makes it possible to lock the ring 61 in position with the hour numeral in the aperture (not shown).
  • the variant illustrated on the figure 14 and whose operation is detailed on the figures 16 to 20 thus allows a more precise control of the position of the ring 61 compared to the variant illustrated on the figure 1 .
  • the return spring 44 allows the ring 61 to make only one counterclockwise jump.
  • the jumper 64 makes it possible to prevent the ring 61, following the rebound of the ring 61 against the return spring 44 via a tooth of the internal toothing of the ring 61, from being able to turn clockwise.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Electromechanical Clocks (AREA)
  • Transmission Devices (AREA)

Claims (15)

  1. Uhrwerk umfassend:
    - ein retrogrades Uhrwerk (20), wobei das retrograde Uhrwerk (20) die Anzeige von Minuten ermöglicht;
    - einen Stundenring (60), der eine asymmetrische Innenverzahnung (610) aufweist und durch das retrograde Uhrwerk (20) angetrieben wird, um die aktuelle Uhrzeit springend anzuzeigen;
    - einen Korrekturmechanismus (1), mit dem das retrograde Uhrwerk (20) in zwei Richtungen korrigiert werden kann;
    ein Antriebselement (4), das durch den Korrekturmechanismus (1) betätigt werden kann und mit der asymmetrischen Innenverzahnung (610) so in Eingriff steht, dass Korrekturen des retrograden Uhrwerks (20) im Uhrzeigersinn auf den Stundenring (60) übertragen werden, und dass Korrekturen gegen den Uhrzeigersinn nicht auf den Stundenring (60) übertragen werden.
  2. Uhrwerk nach dem vorhergehenden Anspruch, wobei die asymmetrische Innenverzahnung (610) eine Vielzahl von Zähnen mit asymmetrischen Flanken aufweist, wobei das Antriebselement (4) so angeordnet ist, dass es an einer Flanke (6100) eines Zahns der Innenverzahnung (610) angrenzt und den Stundenring (60) bewegt, wenn sich das retrograde Uhrwerk (20) gegen den Uhrzeigersinn dreht, und dass es auf einer anderen Flanke eines Zahns der Innenverzahnung gleitet, wenn sich das retrograde Uhrwerk (20) im Uhrzeigersinn dreht.
  3. Uhrwerk nach einem der Ansprüche 1 oder 2, mit einem Schneckennocken (5) und eine Harke (3), der mit dem Schneckennocken (5) in Eingriff steht, um das retrograde Uhrwerk (20) anzutreiben.
  4. Uhrwerk nach Anspruch 3 mit einer Feder (42), die an der Harke (3) angebracht ist und eine Kraft ausübt, um das Antriebselement (4) gegen die asymmetrische Innenverzahnung zu drücken.
  5. Uhrwerk nach dem vorhergehenden Anspruch, bei dem die Schneckennocke (5), die sich in einer ersten Drehrichtung dreht, die Harke (3) und das retrograde Uhrwerk (20) in der entgegengesetzten Drehrichtung antreibt.
  6. Uhrwerk nach einem der Ansprüche 1 bis 5, das so angeordnet ist, dass es eine uneingeschränkte Korrektur der Stunden- und Minutenanzeige im Uhrzeigersinn ermöglicht.
  7. Uhrwerk nach einem der Ansprüche 1 bis 6, wobei der Korrekturmechanismus (1) so angeordnet ist, dass er eine sprungartige Korrektur der Stunden im Uhrzeigersinn ermöglicht.
  8. Uhrwerk nach einem der Ansprüche 1 bis 7, derart ausgebildet, dass es eine Korrektur der Minutenanzeige im Gegenuhrzeigersinn ermöglicht.
  9. Uhrwerk nach Anspruch 8, mit einem Korrektursperrmechanismus (35) zur Verhinderung der Korrektur der Minuten im Gegenuhrzeigersinn innerhalb eines Bereichs, der den Zeitpunkt der Rückkehr des retrograden Uhrwerks einschließt, und zur Ermöglichung der Korrektur der Minuten im Gegenuhrzeigersinn außerhalb dieses Bereichs.
  10. Uhrwerk nach einem der Ansprüche 3 bis 9, wobei die an der Harke (3) angebrachte Feder (42) ein Ende (442), beispielsweise ein zahnförmiges Ende, aufweist, das so angeordnet ist, dass es mit der asymmetrischen Innenverzahnung zusammenwirkt, um die Drehung des Antriebsrings (61) gegen den Uhrzeigersinn zu kontrollieren.
  11. Uhrwerk nach dem vorhergehenden Anspruch, mit einer Sprungfeder (64), die so geformt ist, dass sie jede Drehung des Antriebsrings (61) im Uhrzeigersinn blockiert, wenn die Sprungfeder (64) in eine Ausnehmung (6111) einer Außenverzahnung des Antriebsrings (61) eingreift.
  12. Uhrwerk nach dem vorhergehenden Anspruch, wobei die Sprungfeder (64) ein Ende (642) aufweist, das im wesentlichen parallel zu Anschlagpunkten (61111, 61110) verläuft, die die Aussparung (6111) definieren, wenn die Sprungfeder (64) in die Aussparung (6111) eingreift.
  13. Verfahren zur Korrektur der Anzeige einer Zeitangabe eines Uhrwerks nach einem der Ansprüche 1 bis 12, wobei, in einem ersten Intervall:
    - die Drehung einer Einstellspindel (10) in eine erste Richtung die Drehung einer Schneckennocke (5) in eine erste Richtung und die Drehung einer Harke (3) in eine zweite Richtung bewirkt,
    - die Drehung des Harken (3) in eine zweite Richtung bewirkt, dass das eines retrograden Uhrwerks (20) und eines Antriebselements (4) und
    - das Antriebselement (4) sich entlang einer ersten Flanke (6101) einer Innenverzahnung (610) eines Stundenrings (60) bewegt, ohne eine Drehung des Stundenrings (60) zu bewirken
    um dann bei Minute 60 :
    - die Drehung des Schneckennockens (5) bewirkt, dass die Harke (3) abfällt und sich fast unmittelbar in die erste Richtung dreht;
    - die fast unmittelbare Drehung der Harke (3) in die erste Richtung bewirkt die fast unmittelbare Drehung des retrograden Uhrwerks (20),
    - die Drehung des genannten Antriebselements (4), das an einer zweiten Flanke (6100) der Innenverzahnung des Rings (610) anliegt, diesen Ring (60) sprungartig und quasi unmittelbar mitnimmt.
  14. Verfahren zur Korrektur nach Anspruch 13, wobei :
    - die Drehung der Einstellspindel (10) die Schneckennocke (5) antreibt;
    - die Drehung der Schneckennocke (5) die entgegengesetzte Drehung der Harke (3) bewirkt;
    - die Drehung der Harke (3) die Drehung des retrograden Uhrwerks (20) und des Antriebselements (4) bewirkt.
  15. Verfahren zur Korrektur nach dem vorhergehenden Anspruch, wobei die Korrektur der Minutenanzeige im Gegenuhrzeigersinn auf einen Bereich beschränkt ist, der den Umkehrpunkt des retrograden Uhrwerks ausschließt.
EP17712845.1A 2016-03-15 2017-03-15 Uhrwerk mit einer rückläufigen anzeige und einem sprungstundenring Active EP3430481B1 (de)

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CH00348/16A CH712217A2 (fr) 2016-03-15 2016-03-15 Mouvement de montre comportant un affichage rétrograde et un anneau des heures sautant.
PCT/IB2017/051498 WO2017158527A1 (fr) 2016-03-15 2017-03-15 Mouvement de montre comportant un affichage rétrograde et un anneau des heures sautant

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EP3486735B1 (de) * 2017-11-20 2020-09-30 Montres Breguet S.A. Uhrwerksmechanismus zur nullrückstellung der sekunde mit schneckennocken
EP3869280B1 (de) * 2020-02-19 2024-04-17 Montres Breguet S.A. Anzeigemechanismus für uhr
EP3913442B1 (de) * 2020-05-20 2023-05-17 Blancpain SA Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist
CN116066672A (zh) * 2022-12-29 2023-05-05 创维集团智能科技有限公司 显示设备

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WO2017158527A1 (fr) 2017-09-21
US10928777B2 (en) 2021-02-23
CN109416521B (zh) 2022-07-08
JP2019509503A (ja) 2019-04-04
CH712217A2 (fr) 2017-09-15
US20190086867A1 (en) 2019-03-21
CN109416521A (zh) 2019-03-01
EP3430481A1 (de) 2019-01-23
JP6941152B2 (ja) 2021-09-29

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