EP3196710B1 - Uhrwerk, das eine analoganzeige umfasst - Google Patents

Uhrwerk, das eine analoganzeige umfasst Download PDF

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Publication number
EP3196710B1
EP3196710B1 EP16203432.6A EP16203432A EP3196710B1 EP 3196710 B1 EP3196710 B1 EP 3196710B1 EP 16203432 A EP16203432 A EP 16203432A EP 3196710 B1 EP3196710 B1 EP 3196710B1
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EP
European Patent Office
Prior art keywords
indicator
pinion
timepiece movement
pins
dead angle
Prior art date
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Application number
EP16203432.6A
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English (en)
French (fr)
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EP3196710A1 (de
Inventor
Daniel Gruenig
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ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
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Publication of EP3196710A1 publication Critical patent/EP3196710A1/de
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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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/02—Shock-damping bearings
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G04C17/0058—Indicating the time optically by electric means by discs with date indication
    • G04C17/0066—Indicating the time optically by electric means by discs with date indication electromagnetically driven, e.g. intermittently
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/24306—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator combination of different shapes, e.g. bands and discs, discs and drums
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G04C17/0058—Indicating the time optically by electric means by discs with date indication

Definitions

  • the invention relates to the field of watch movements having an analog display. It relates in particular to the impact resistance of a drive mechanism of an analog indicator, in particular a disk bearing calendar data and in particular a date ring.
  • the invention relates first of all electromechanical movements provided with an electromagnetic motor as a driving source for the drive mechanism of the analog indicator. However, it can also apply to purely mechanical movements.
  • the invention finds a specific application in an electromechanical movement having two analog indicators driven by a single motor and arranged so that at least one of the two indicators can be operated to display its function without the other indicator be trained.
  • the pins penetrate without risk of blockage in the hollows of the toothing. To ensure this function, the pins have even been truncated on the side of the axis of rotation. It will be noted that the toothing has depressions with flanks which close towards the bottom of the toothing.
  • the analog display includes a chronograph hand, in particular a minute hand of the timed time interval, associated with a 360 ° circular graduation, and a date display (date) using a date ring, the displayed date appearing conventionally in a window of the dial.
  • first mechanism the driving mechanism of the chronograph hand
  • second mechanism the drive mechanism of the date ring
  • the first mechanism comprises an intermediate wheel driven directly by the rotor of the engine and a chronograph wheel which meshes with the intermediate wheel.
  • the second mechanism also comprises said intermediate wheel and further an auxiliary wheel meshing with this intermediate wheel.
  • the auxiliary wheel is secured to a periodic actuating wheel of a drive wheel of the date ring, the mobile having an actuating finger of the drive wheel.
  • the periodic actuating wheel and the driving wheel together form a Geneva mechanism, known for the periodic drive of a ring / date disc.
  • the finger drives the drive wheel of the date ring, which is rotated over an angular distance corresponding to the passage of a date to the next date in the window of the dial provided. for displaying the date.
  • the Geneva mechanism is therefore characterized by a periodic drive of the drive wheel of the date ring, the periodic actuating wheel meshing with this drive wheel only on an angular sector less than 360 °, while this mobile locks the drive wheel on the complementary angular sector. So, as long as the periodic actuating wheel rotates while it is positioned in the complementary angular sector, the rotational movement of the rotor is not transmitted to the date ring.
  • the document US 6,185,158 uses the Geneva mechanism to allow the engine used for the training of the date to perform an additional function, namely the driving of a chrono hand.
  • the method consists in driving the chronograph hand when said periodic operating wheel is in its non-actuation zone, that is to say in said complementary angular sector, and at the end of the interval. of time timed a reset in reverse to return the periodic actuating mobile to a predefined initial position.
  • the Geneva mechanism or a similar Maltese cross mechanism is relatively complex for training a date ring. They require low tolerances for such a mechanism to be effective and there is a risk of blockage. In addition, they are relatively bulky.
  • a first object of the invention is to propose a watch movement equipped with an analogue display device for information whose value varies periodically or intermittently, and in which the periodic or intermittent drive mechanism of the indicator of this display device is relatively inexpensive, simple to mount and limits the space required in the watch movement, while having a shockproof function and a good positioning of the indicator in the plurality of discrete positions of the display device analog.
  • periodic training is meant training which occurs only periodically, i.e. training takes place periodically during a limited period of time and no training occurs between the limited time intervals.
  • 'intermittent drive' is understood a discontinuous drive which stops and resumes according to the control of the intermittent drive mechanism without this drive necessarily intervenes at regular intervals.
  • a second object of the invention is to provide a watch movement responding to the above-mentioned first purpose and of which said drive mechanism allows an effective positioning of the indicator in a plurality of discrete positions without the need for a jumper, in particular by ensuring such positioning. over a certain angular range of a rotating mobile actuating the indicator, so as to allow some tolerance to the mounting of the rotating mobile relative to its initial angular positioning and also to ensure a good positioning of the indicator even in case of not missed during an actuation of the drive mechanism by a stepper motor causing a variation of the angular position of the mobile rotating in its rest positions.
  • a third object of the invention is to provide a watch movement responding to the above-mentioned second purpose and wherein said rotating mobile has at least a certain blind spot for driving the indicator of the aforementioned display device, the anti-shock function and the positioning of the indicator being ensured during a rotation of this rotating mobile in the dead angular zone defined by this dead angle.
  • Such a watch movement makes it possible to fulfill a fourth purpose of the invention of arranging a second analog display, comprising a second indicator kinematically linked to said drive mechanism, so that the second indicator is driven by the drive mechanism for indicate a second piece of information while the rotating wheel remains in the dead angular zone.
  • this display device analog device comprising an indicator of this information provided with a toothing and a periodic or intermittent drive mechanism of this indicator, this mechanism comprising a rotating mobile whose pinion, in meshing relation with the toothing of the indicator, is formed two pins which are diametrically opposed relative to the axis of rotation of the pinion, these two pins being configured to penetrate alternately into successive recesses of the toothing and to form a self-locking system in the event of shocks to the watch movement at least when the pinion is in any of the two tangential positions where the two pins are substantially oriented tangentially to the toothing.
  • Each of the two pins has, in a general plane of the toothing perpendicular to the axis of rotation of the rotating mobile, a transverse profile whose first outer portion is substantially circular arc centered on the axis of rotation of the rotating mobile.
  • the two pins of the pinion are configured relative to the toothing of the indicator so that there is a dead angle ( ⁇ ) for the driving of this indicator by the pinion in at least one direction of rotation from each of the two positions tangential of the pinion, the arc of the transverse profile of the two pins extending over an angular distance substantially equal to or greater than the dead angle.
  • the circular arc of the transverse profile of the two pins extends over an angular distance ( ⁇ ) of between 3/2 multiplied by the abovementioned dead angle and substantially twice this dead angle (3 ⁇ / 2 ⁇ ⁇ ⁇ 2 ⁇ ).
  • This watch movement 2 comprises a first display formed by a date ring 4 comprising an internal toothing 5, this ring being driven periodically (normally once a day) by a drive mechanism 8 which comprises a rotating wheel 10 whose pinion 12 meshes with the toothing 5.
  • This drive mechanism is actuated by a drive source which is formed by a bidirectional electric motor 16 controlled by an electronic unit, in particular of the step-by-step type.
  • the pinion 12 is formed of two pins 22 and 23 which, during a driving the ring 4, penetrate alternately into successive recesses 7 of the toothing 5.
  • the pinion pinion 12 is remarkable in that it forms with the toothing 5, in the event of shocks to the watch movement, a system self-locking for the date ring at least when the pinion is in any of two tangential positions where the two pins are substantially oriented tangentially to the circular toothing 5 (parallel to the direction T).
  • a positioning jumper 14 is provided. This jumper is arranged so that it fits stably between two adjacent teeth of the toothing in each of the plurality of distinct positions of the ring 4. This jumper is preferably dimensioned to ensure accurate positioning of the ring 4, given the large clearance between the two pins 22, 23 and the toothing 5 and also the relatively high dead angle ⁇ for the pinion 12 during its rotation from its two tangential positions.
  • the jumper is not provided here for a shockproof function so that the elastic constant may be less than in conventional devices.
  • the watch movement 2 further comprises a second indicator 18 kinematically connected to the driving mechanism 8 of the first indicator 4, this second display being arranged so that the second indicator 18 can be driven by this drive mechanism to indicate a second information. , especially in relation to a timed interval of time, while the rotating wheel 10 remains in one or the other of two dead angular zones for the driving of the first indicator.
  • the two pins of the pinion 12 are configured with respect to the toothing 5 of the date ring so that there is a dead angle ⁇ for the driving of this indicator by this pinion in at least one direction of rotation from each of the two tangential positions of the pinion, the rotating wheel thus not causing the ring of dates in two dead angular zones defined in an angular reference linked to the watch movement and centered on the axis of rotation A10 of the rotating wheel, these two dead angular zones comprising minus the dead angle indicated since respectively the two tangential positions of the pinion.
  • the second analog display and its drive mechanism which here consists of a part of the mobiles of the driving mechanism 8 are arranged in a manner that the second indicator 18 can rotate at least 360 ° while the pinion is rotated within the dead angle ⁇ from any of its two tangential positions.
  • the indicator 18 is activated, a periodic reset or reset of this indicator is provided as long as the pinion remains angularly in a dead angular zone. It is thus possible to independently display two pieces of information with a single drive mechanism and in particular a single electric motor 16.
  • the watch movement 2 has several advantages, particularly in relation to the training of the two indicators providing independent information (date and time interval timed) by means of a single driving source and with the anti-shock function obtained by a relatively simple, inexpensive and easy to mount in the watch movement.
  • this watch movement has certain disadvantages.
  • the pins are relatively small. There is therefore a real risk that they are damaged during an impact suffered by the watch movement, in particular that they deform durably by folding under the force exerted by the toothing on these pins during some shocks. It is possible to increase the cross section of the pins a little, but then the dead angular areas are reduced. It is also possible to take a known toothing with recesses having parallel flanks, as shown in FIG.
  • FIG. 3 To the Figure 3 is shown a variant of the watch movement 2 in which various parameters have been improved, starting from a configuration similar to that known from the prior art.
  • Only the pinion pin 12A of the drive mechanism of the watch movement 2A has been shown, the other parts being identical to those of the watch movement 2.
  • This pinion 12A comprises two pins 24 and 25 of cylindrical shape with a diameter D.
  • the troughs 7A of the teeth 5A of the date ring 4A have a substantially rectangular profile and therefore flanks (side walls) parallel.
  • the width L of the hollows is approximately equal to the width of the teeth at half height.
  • the diameter D of the pins, so as to ensure sufficient mechanical strength, is greater than half the width L of the recesses 7A.
  • the pins have been arranged so as to leave, in the two tangential positions mentioned above, a relatively small clearance between these and the two teeth defining the outer flanks 28 and 29 of the two respective recesses opposite the two pins, so that the date ring has a relatively small angular play when the pinion is in one or other of the two tangential positions.
  • the pinion is in one of its two tangential positions in the rest periods where neither the date ring nor the second indicator are driven. These rest positions are preferred because they provide the best protection against shock. It will be noted that as soon as it deviates from it, the locking torque operated by the pinion decreases. Finally, it should be noted that the preferred rest positions are not always those that occur for a variety of reasons, the first being that the pinion 12A can be initially mounted with angular positioning having some variation, and the second that the the motor may miss some steps so that the angular position of the pinion is not precisely known. Therefore, even when the drive mechanism is inactive in periods of rest, the positioning jumper provided in the prior art is necessary to overcome this problem. However, the invention resolves these problems effectively by proposing the solution which will be explained below.
  • the pinion 32 comprises two pins 34 and 36 which each have, in a general plane of the toothing 5A perpendicular to the axis of rotation A10 of the rotating wheel comprising the pinion 32, a transverse profile of which a first outer portion 38 is substantially arcuate. circle centered on the axis of rotation.
  • the rear portion 40 of each pin is rounded and substantially corresponds to the portion back of the pins 24 and 25 of the Figure 3 .
  • a circle having the diameter of the pins 24 and 25 is inscribed inside each pin 36, 38.
  • These pins 36 and 38 are symmetrical relative to a plane comprising the axis of rotation A10. so as to exhibit the same behavior regardless of the direction of rotation of the pinion 32.
  • the tangential length T of these pins, perpendicular to said plane of symmetry, is greater than the diameter D of the pins 24, 25 and the radial dimension R of pins 36, 38.
  • the outer portion in a circular arc advantageously extends over the entire tangential length. Note that in order to drive the ring 4A, the tangential length T is less than the width L of the recesses 7A.
  • the dead angle is substantially equal to that involved in the realization of the Figure 3 .
  • the outer arc of the transverse profile of the two pins extends over an angular distance ⁇ which is, in the example shown, substantially equal to the dead angle.
  • the angular distance ⁇ is greater than this dead angle.
  • the pinion and the toothing are arranged in such a way that the calendar indicator exhibits, when the rotating wheel rotates over the whole of any one of the two dead angular zones, an angular clearance which remains lower or substantially equal to forty microns (40 microns).
  • the pins are more massive than in the case of the Figure 3 . They are therefore stronger and resistant to shocks. Then, the dead angle and thus the dead angular zone can remain significant, especially as large as for an embodiment with conventional cylindrical pins.
  • the anti-shock function is greatly improved because, in the event of shocks, the points of application of the strength of the date ring on the pins remain on a tangent intercepting the axis of rotation A10 for the entire angular distance of rotation. constant play. Thus, not only for its two tangential positions but throughout this angular distance, no torque is exerted on the pinion 32 in the event of external shocks generating an angular acceleration of the date ring.
  • each hollow 7B, respectively 7C of the toothing 5B, 5C has, at the ends 48 of two adjacent teeth 6B, 6C, an opening which has a dimension L1 less than the width of this hollow at its region of contact with the two pins, during a training of the calendar indicator by the rotating mobile comprising these two pins, and in particular less than the maximum width L2 in the bottom of teeth.
  • the aforementioned contact region extends for a certain distance along the lateral walls 50, 62 respectively of the teeth, beyond the tangent 42 to the circular toothing towards the bottom of the toothing.
  • each pin 46, respectively 56 has a radial dimension R relative to the axis of rotation A10 of the rotating wheel and a tangential dimension T, perpendicular to the radial dimension, the value of this tangential dimension being substantially equal to twice that of radial dimension or higher.
  • the dimension L1 is greater than the radial dimension R and the dimension L2 is greater than the tangential dimension T, otherwise the meshing of the pinion gear with the toothing of the calendar indicator can not be functional since it will block quickly.
  • the lateral profile 50 of the teeth 6B, respectively of the lateral edges of the recesses 7B is substantially rectilinear from the tangent line 42 to the bottom of the toothing.
  • Each hollow 7B is flared in the direction of the bottom of teeth and therefore each tooth 6B is flared towards its end region 48.
  • the profile of the teeth substantially follows a circular arc centered on the axis A10.
  • the pins 46 also have a flared shape radially away from the axis of rotation A10. They have a large opening so as to considerably increase the angular distance ⁇ of the arc defined by the external part of the tooth.
  • each of the two pins 56 has a profile also in an arc so as to increase the tangential dimension T of these pins without increasing their radial dimension R.
  • This increases the angular opening pins and thus the angular distance defined by the outer circular arc 38.
  • the teeth 6C have a corresponding profile which is arranged to obtain a larger blind spot while having a substantially constant low clearance on the dead angular distance resulting from this blind spot.
  • Each tooth has a foot 58 with side walls 62 substantially parallel. Then, the width of the teeth increases with a circular profile section 64 centered on the axis A10, the radius of this circular profile being provided a little lower than that defined by the inner circular portion of the pins.
  • the teeth have in the end region of their end a profile section 66 which curves towards the axis A10, so as to enlarge the opening between two adjacent teeth at their ends.
  • the length of the section 66 can here be relatively large and extend beyond the tangent 42 without impairing the low play on the large dead angular distance which has a value between 35 ° and 40 ° in the example shown.
  • each calendar indicator 4A, 4B and 4C is a first information.
  • the analog display is a first analog display and the calendar indicator is a first indicator.
  • the watch movement 44, respectively 54 of these two embodiments further comprises a second analog display (not shown but similar to that of the Figures 1 & 2 ) comprising a second indicator which is kinematically linked to the driving mechanism of the first indicator.
  • This second display is arranged so that the second indicator is driven by the drive mechanism to indicate a second information independent of the first information while the rotating mobile remains in one or the other of the two dead angular zones defined by the dead angle ⁇ from the two possible tangential positions of the pinion gear.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)

Claims (14)

  1. Uhrwerk (2A, 30, 44, 54), ausgestattet mit einer Vorrichtung für eine Analoganzeige einer Information, deren Wert sich periodisch oder zeitweise ändert, wobei diese analoge Anzeigevorrichtung einen mit einer Zahnung (5A, 5B, 5C) versehenen Anzeiger (4A, 4B, 4C) für die Information und einen Mechanismus zum periodischen oder zeitweisen Antreiben dieses Anzeigers umfasst, wobei dieser Mechanismus ein Drehteil aufweist, dessen Ritzel (32) in Bezug auf den Eingriff mit der Zahnung aus zwei Sperrstiften (34, 36, 46, 56) gebildet ist, die relativ zu der Drehachse (A10) des Drehteils einander diametral gegenüberliegen, wobei diese beiden Sperrstifte konfiguriert sind, abwechselnd in aufeinander folgende Aussparungen (7A, 7B, 7C) der Zahnung einzudringen und ein selbstblockierendes System zu bilden im Fall von Stößen, die das Uhrwerk mindestens dann erfährt, wenn das Ritzel in einer beliebigen von zwei tangentialen Positionen ist, in denen die beiden Sperrstifte im Wesentlichen tangential zu der Zahnung des Anzeigers ausgerichtet sind, wobei jeder dieser beiden Sperrstifte in einer Gesamtebene der Zahnung senkrecht zu der Drehachse des Drehteils ein Querprofil aufweist, wovon ein erster äußerer Teil (38) im Wesentlichen die Form eines Kreisbogens besitzt, der auf die Drehachse zentriert ist, wobei die beiden Sperrstifte des Ritzels in Bezug auf die Zahnung des Anzeigers in einer Weise konfiguriert sind, dass ein toter Winkel (α) für den Antrieb dieses Anzeigers durch dieses Ritzel in mindestens einem Richtungssinn aus jeder der beiden tangentialen Positionen des Ritzels besteht, wobei das Drehteil somit den Anzeiger in zwei Totwinkelbereichen, die in einem mit dem Uhrwerk in Beziehung stehenden und auf die Drehachse des Drehteils zentrierten Winkelbezugssystem definiert sind, nicht antreibt, wobei diese beiden Totwinkelbereiche mindestens den toten Winkel von den beiden jeweiligen tangentialen Positionen des Ritzels enthalten, wobei sich der erste äußere Teil des Querprofils der beiden Sperrstifte über einen Winkelabstand (β) erstreckt, der im Wesentlichen gleich oder größer als der tote Winkel ist.
  2. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass der tote Winkel im Wesentlichen gleich oder größer als fünfzehn Grad (15° ≤ α) ist.
  3. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass der tote Winkel im Wesentlichen gleich oder größer als fünfundzwanzig Grad (25° ≤ α) ist.
  4. Uhrwerk nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass sich der erste äußere Teil des Querprofils der beiden Sperrstifte über eine Winkelstrecke (β) im Bereich von dem 3/2-fachen toten Winkel bis zu dem im Wesentlichen zweifachen toten Winkel (3α/2 < β < 2α) erstreckt.
  5. Uhrwerk nach Anspruch 4, dadurch gekennzeichnet, dass jede Aussparung (7B, 7C) der Zahnung eine Öffnung in Höhe der Enden von zwei benachbarten Zähnen aufweist, die eine Abmessung (L1) kleiner als die Breite (L2) dieser Aussparung in Höhe ihres Kontaktbereichs mit den beiden Sperrstiften aufweist, wenn der Anzeiger durch das Drehteil angetrieben wird.
  6. Uhrwerk nach Anspruch 5, dadurch gekennzeichnet, dass jeder Sperrstift eine radiale Abmessung (R) relativ zu der Drehachse des Drehteils und eine tangentiale Abmessung (T) senkrecht zu der radialen Abmessung aufweist, deren Wert im Wesentlichen gleich der zweifachen radialen Abmessung oder größer ist.
  7. Uhrwerk nach einem der Ansprüche 2 bis 6, wobei die Informationen erste Informationen sind, wobei die analoge Anzeige eine erste analoge Anzeige ist und der Anzeiger ein erster Anzeiger ist, dadurch gekennzeichnet, dass dieses Uhrwerk eine zweite analoge Anzeige umfasst, die einen zweiten Anzeiger (18) aufweist, der mit dem Mechanismus für den Antrieb des ersten Anzeigers kinematisch verbunden ist, wobei diese zweite Anzeige so ausgelegt ist, dass der zweite Anzeiger durch den Antriebsmechanismus angetrieben wird, um zweite Informationen anzuzeigen, während das Drehteil in dem einen oder dem anderen der beiden Totwinkelbereiche ruht.
  8. Uhrwerk nach Anspruch 7, dadurch gekennzeichnet, dass die beiden Sperrstifte des Ritzels im Fall eines Stoßes den ersten Anzeiger blockieren, wenn sich das Drehteil in Winkelrichtung in irgendeiner der beiden Totwinkelbereiche befindet.
  9. Uhrwerk nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die zweite analoge Anzeige und ihr Antriebsmechanismus so ausgelegt sind, dass der zweite Anzeiger eine Drehung um mindestens 360° ausführen kann, während das Ritzel eine Drehung innerhalb des toten Winkels aus irgendeiner seiner beiden tangentialen Positionen heraus ausführt.
  10. Uhrwerk nach Anspruch 9, dadurch gekennzeichnet, dass die zweite analoge Anzeige eine Anzeige einer gemessenen Zeitspanne ist.
  11. Uhrwerk nach einem der Ansprüche 1 bis 6 oder 7 bis 10, dadurch gekennzeichnet, dass der Anzeiger bzw. der erste Anzeiger ein Datumsring ist.
  12. Uhrwerk nach einem der Ansprüche 1 bis 6 oder 7 bis 10, dadurch gekennzeichnet, dass das Ritzel und die Zahnung so ausgelegt sind, dass der Anzeiger bzw. der erste Anzeiger dann, wenn das Ritzel in irgendeiner seiner beiden tangentialen Positionen ist, ein Winkelspiel aufweist, das kleiner oder im Wesentlichen gleich fünfunddreißig Mikrometer (35 µm) ist.
  13. Uhrwerk nach einem der Ansprüche 1 bis 6 oder 7 bis 10, dadurch gekennzeichnet, dass das Ritzel und die Zahnung so ausgelegt sind, dass der Anzeiger bzw. der erste Anzeiger dann, wenn das Drehteil eine Drehung über einen vollständigen Bereich irgendeiner der beiden Totwinkelbereiche ausführt, ein Winkelspiel aufweist, das kleiner oder im Wesentlichen gleich vierzig Mikrometer (40 µm) bleibt.
  14. Uhrwerk nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Antriebsmechanismus eine Antriebsquelle (16) umfasst, die durch einen durch eine elektronische Einheit gesteuerten bidirektionalen Elektromotor gebildet ist.
EP16203432.6A 2016-01-18 2016-12-12 Uhrwerk, das eine analoganzeige umfasst Active EP3196710B1 (de)

Applications Claiming Priority (1)

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EP16151735.4A EP3193217A1 (de) 2016-01-18 2016-01-18 Uhrwerk, das eine analoganzeige umfasst

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Publication number Priority date Publication date Assignee Title
EP3709104B1 (de) * 2019-03-01 2024-05-15 Rolex Sa Zahnradgetriebe eines uhrwerks
CH717262B1 (fr) * 2020-03-26 2022-11-30 Officine Panerai Ag Système d'affichage de quantième empêchant toute incrémentation accidentelle comme lors d'un choc.

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GB1318326A (en) * 1970-06-11 1973-05-31 Suwa Seikosha Kk Calendar mechanism for a timepiece
CH538136A (fr) * 1971-02-05 1973-07-31 Suisse Horlogerie Mécanisme dateur pour pièce d'horlogerie
US3738097A (en) * 1971-07-12 1973-06-12 Omega Brandt & Freres Sa Louis Mechanism for driving and correcting a data disc in a day-date timepiece
CH629927B (fr) * 1979-08-10 Ebauches Bettlach Sa Engrenage reducteur de vitesse pour montre electromecanique.
CH642809B (fr) * 1980-11-07 Longines Montres Comp D Montre avec un mecanisme de quantieme perpetuel.
CH678908B5 (de) * 1990-04-04 1992-05-29 Rolex Montres
CH685660B5 (fr) * 1992-09-09 1996-03-15 Asulab Sa Piece d'horlogerie pourvue de moyens d'entraînement formes par un moteur piezo-electrique.
CH684920B5 (fr) * 1993-08-31 1995-08-15 Ebauchesfabrik Eta Ag Pièce d'horlogerie.
JP3732281B2 (ja) * 1996-08-30 2006-01-05 シチズン時計株式会社 多機能時計
SG102647A1 (en) * 2000-12-22 2004-03-26 Ebauchesfabrik Eta Ag Timepiece provided with a date having a large aperture
US7289392B2 (en) * 2005-06-17 2007-10-30 Timex Group B.V. Date display assembly for a timepiece
EP2884349B1 (de) * 2013-12-13 2020-07-01 ETA SA Manufacture Horlogère Suisse Verfahren zur Steuerung einer Analoganzeige, die in einem Uhrwerk eingebaut ist
EP2919076A1 (de) 2014-03-10 2015-09-16 ETA SA Manufacture Horlogère Suisse Antriebsvorrichtung einer Analoganzeige, insbesondere eines Datumsanzeigerings
EP2927756A1 (de) * 2014-04-03 2015-10-07 ETA SA Manufacture Horlogère Suisse Uhrwerk, das mit einem Antriebsmechanismus eines Analoganzeigers mit periodischer oder intermittierender Bewegung ausgestattet ist
EP3070536B1 (de) * 2015-03-19 2019-05-01 ETA SA Manufacture Horlogère Suisse Uhrwerk, das eine antriebsvorrichtung einer analogen anzeige umfasst

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JP6316461B2 (ja) 2018-04-25
CN106990704B (zh) 2019-06-14
US20170205769A1 (en) 2017-07-20
JP2017129575A (ja) 2017-07-27
CN106990704A (zh) 2017-07-28
EP3196710A1 (de) 2017-07-26
US10054907B2 (en) 2018-08-21
EP3193217A1 (de) 2017-07-19

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