EP3913442A1 - Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist - Google Patents

Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist Download PDF

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Publication number
EP3913442A1
EP3913442A1 EP20175724.2A EP20175724A EP3913442A1 EP 3913442 A1 EP3913442 A1 EP 3913442A1 EP 20175724 A EP20175724 A EP 20175724A EP 3913442 A1 EP3913442 A1 EP 3913442A1
Authority
EP
European Patent Office
Prior art keywords
retrograde
wheel
display
finger
display mechanism
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.)
Granted
Application number
EP20175724.2A
Other languages
English (en)
French (fr)
Other versions
EP3913442B1 (de
Inventor
M. Mehdi DENDEN
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.)
Blancpain SA
Original Assignee
Blancpain 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.)
Filing date
Publication date
Application filed by Blancpain SA filed Critical Blancpain SA
Priority to EP20175724.2A priority Critical patent/EP3913442B1/de
Priority to US17/198,341 priority patent/US20210364989A1/en
Priority to JP2021062632A priority patent/JP7143471B2/ja
Priority to RU2021114020A priority patent/RU2761129C1/ru
Priority to CN202110554602.1A priority patent/CN113703306B/zh
Publication of EP3913442A1 publication Critical patent/EP3913442A1/de
Application granted granted Critical
Publication of EP3913442B1 publication Critical patent/EP3913442B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • 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
    • 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
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • G04B19/253—Driving or releasing mechanisms
    • G04B19/25333—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement
    • G04B19/25353—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement
    • G04B19/25366—Driving or releasing mechanisms wherein the date indicators are driven or released mechanically by a clockwork movement driven or released stepwise by the clockwork movement manually corrected at the end of months having less than 31 days
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/005—Mechanical devices for setting the time indicating means stepwise or on determined values

Definitions

  • the present invention relates to a retrograde horological display mechanism provided with a safety device. More precisely, the present invention provides a retrograde date display mechanism provided with such a safety device.
  • a horological display mechanism is said to be retrograde which, when it reaches a certain point, sets back and returns to its starting point.
  • the date display mechanisms an example of which is given by a hand which moves opposite an index on which appear the date indications of "1" to "31". The hand points successively to each of the date indications "1" to "31” then, when at the end of the month, it reaches the date indication "31", it is recalled backwards and brought back opposite the date. date indication "1”. Then, the hand begins to move again opposite the date indications from "1" to "31".
  • the object of the present invention is to provide a safety device enabling the owner of a watch to manually correct the indication provided by a retrograde horological display mechanism while protecting this retrograde horological display mechanism against any attempt at manual correction. of the information that it displays during the time lapse in which the change in the information displayed by the retrograde clock display mechanism occurs.
  • the present invention relates to a retrograde horological display mechanism for a watch comprising a wheel for displaying information, this display wheel being driven at regular time intervals by a drive finger carried by a drive wheel itself driven by a clockwork movement, in order to change the information displayed by the retrograde clock display mechanism from one value to the immediately following value
  • this mechanism retrograde watch display also comprising an intermediate correction device which allows the owner of the watch to manually correct the information provided by the retrograde watch display mechanism by acting on a correction finger which drives the display wheel
  • the retrograde horological display mechanism also comprising a safety device arranged to allow the blocking of the intermediate correction device by preventing the correction finger from driving the display wheel during a period of time when the change of information occurs displayed by the retrograde clock display mechanism and where the drive finger engages the display wheel.
  • the present invention provides a retrograde horological display mechanism which allows the owner of the watch in which this retrograde horological display mechanism is embedded to manually correct the indication provided by the latter without risk that the owner of the watch. the watch could break this retrograde horological display mechanism.
  • the present invention provides for providing the retrograde watch display mechanism with a safety device rendering inoperative any attempt by the owner of the watch to manually correct the display provided by the retrograde watch display mechanism. during the period of time when the clockwork movement drives this retrograde clockwork display mechanism and when the drive finger is engaged with the display wheel to change the information displayed.
  • any risk of driving the display wheel in the opposite direction to the direction in which the drive finger drives this display wheel during the period of time when these two components are in engagement with each other, and therefore to break the mechanism is discarded.
  • the present invention proceeds from the general inventive idea which consists in providing a retrograde horological display mechanism on board a watch and equipped with a safety device allowing ensure that at no time does the owner of the watch run the risk of forcing the retrograde watch display mechanism and breaking it by wanting to perform a manual correction of the displayed indication.
  • the present invention teaches to provide the retrograde clock display mechanism with a safety device aimed at making it impossible to manually correct the information displayed by this mechanism during the period of time in which this clock display mechanism retrograde is driven by the clockwork movement and where the information displayed changes automatically.
  • the present invention will be described in connection with a retrograde horological display mechanism providing a date indication. It goes without saying that this example is given purely by way of illustration and not limitation only and that the present invention can be applied to other horological display mechanisms arranged to display time information (for example days of the week or else. month of the year) in a retrograde fashion.
  • the retrograde horological display mechanism As illustrated on figure 1 comprises a drive wheel 2 which carries a drive finger 4 (see in particular figure 3 ). Driven counterclockwise by a clockwork movement of the watch not shown in the drawing, the drive wheel 2 is also called a 24-hour wheel because it makes one complete revolution in 24 hours. In turn, the drive wheel 2 drives by its drive finger 4 a display wheel 6 in the clockwise direction. In the particular and non-limiting case where the retrograde horological display mechanism in which we are interested here is designed to display the date indications, the display wheel 6 advances by one step per day and the drive wheel 2 completes a complete revolution in 24 hours.
  • the drive wheel 2 will make a complete revolution in 7 days if the retrograde horological display mechanism 1 according to the invention is used to display the days of the week. Or else the drive wheel 2 will make a complete revolution in 31 days if the display mechanism according to the invention is intended to display the months of the year.
  • the display wheel 6 is elastically constrained in the counterclockwise direction, that is to say the direction opposite to its driving, by a first spring (not shown in the drawing).
  • This elastic tension is retained thanks to a wheel 10 mounted fixed coaxially with the display wheel 6 and in a toothing 12 of which a first nose 13 of a retaining finger 14 is pressed by a jumper 16 constrained by a second spring 8 .
  • the retaining means which elastically constrains the display wheel 6 may be the jumper 16 itself which is provided with a spout by which it is pressed into the teeth 12 of the display wheel 6.
  • the drive finger 4 is flexible.
  • this flexible drive finger 4 consists of a second spout 18 extended by at least one elastic coil 20 which ends in means making it possible to secure the free end of the elastic coil 20. on the drive wheel 2.
  • the elastic coil 20 ends with a radial arm 22 pierced with a hole 24 making it possible to drive out the flexible drive finger 4 on an axis drive wheel pivot 26 2.
  • the flexible drive finger 4 is rotatably mounted coaxially between the drive wheel 2 and a circular plate 28 in a perimeter 30 of which are formed at least one notch 34 and preferably also a recess 32.
  • a pin 36 is provided. fixed by any suitable technique such as driving or gluing in the second beak 18 of the finger flexible drive 4.
  • the pin 36 projects into an oblong hole 38 formed in a board 40 of the drive wheel 2, and at a second end, the pin 36 projects into the notch 34 formed in the perimeter 30 of the circular plate 28.
  • the flexible drive finger 4 is mounted on the drive wheel 2 with a slight pre-stress so as to ensure that the first end of the pin 36 is constantly resting against a wall 42 of the oblong hole 38 formed in the plate. the board 40 of the drive wheel 2.
  • the drive wheel 2 makes a complete revolution in 24 hours.
  • the change of the information displayed that is to say the date, takes place around midnight.
  • the pin 36 is in abutment against the oblong hole 38 and the flexible drive finger 4 which is mounted integral on the drive wheel 2 at its end opposite to its second spout 18 begins to tighten and to drive the circular plate 28 and the cam 46 in pivoting (see figure 4 ).
  • the flexible drive finger 4 is assisted in this by the eccentric 44 which abuts against an edge 48 of the clearance 32.
  • the drive finger 4 drives the display wheel 6. Note that by slightly rotating the eccentric 44 in one direction or the other, the instant when the eccentric 44 comes into contact with the circular plate 28 and where the displayed indication, here the date indication, changes from one value to the immediately following value.
  • the flexible drive finger 4 causes the display wheel 6 to advance one step in the clockwise direction thanks to its second nose 18 engaged in a toothing 50 of this display wheel 6 (see figure 5 ).
  • the flexible drive finger 4 disengages from its engagement with the teeth 50 of the display wheel 6 and relaxes (see figure 6 ).
  • the drive finger 4 is intended to be flexible, it is in order to allow the correction of the current time displayed by the watch in which the display mechanism retrograde watchmaker 1 according to the invention is on board in both directions.
  • the present invention applies identically to the case in which the drive finger 4 which engages with the teeth 50 of the display wheel 6 is rigid.
  • the only difference with the case in which the drive finger 4 is flexible lies in the fact that the correction of the current time displayed by the watch in which the retrograde horological display mechanism 1 according to the invention is on board cannot be done only in one direction when the drive finger 4 is rigid.
  • the retrograde horological display mechanism 1 is also equipped with a correcting device 54 to allow the owner of the watch to manually correct the indication displayed by this retrograde horological display mechanism 1.
  • the correcting device 54 comprises a control lever 56 which pivots clockwise around a first pivot center 58 when the owner of the watch exerts on this control lever 56 a thrust along arrow A by means of 'a push button 57.
  • a stud 60 is mounted at a first end of the latter, while at a second end the control lever 56 carries a correction pin 62 (see figure 9 ).
  • This third spring 64 belongs to an intermediate correction device 66 which comprises a correction lever 68 of which the third spring 64 is integral and which is able to pivot counterclockwise around a second center. swivel 70 (see figures 7, 8 and 10 ).
  • the intermediate correction device 66 also comprises a correction finger 72 able to pivot about a third pivot center 74 and resiliently constrained by a fourth spring 76 which, preferably but not limited to, is made of material with the correction finger. 72.
  • This fourth spring 76 is mounted with a slight elastic preload thanks to a pin 77 which keeps it away from its rest position. This fourth spring 76 elastically forces the correction finger 72 in the clockwise direction, so as to keep this correction finger 72 away from the teeth 50 of the display wheel 6 in normal times. In its position away from the teeth 50 of the display wheel 6, the correction finger 72 bears against a stop 79.
  • the operation of the intermediate correction device 66 is as follows: when the owner of the watch wants to correct the indication displayed by the retrograde horological display mechanism 1, he presses the push-button 57, which has the effect effect of rotating the control lever 56 counterclockwise (see figure 11 ). Under the effect of the pivoting of the control lever 56, the correction pin 56 moves the third spring 64 away from its rest position and causes the pivoting of the correction lever 68 in the anti-clockwise direction. By pivoting, the correction lever 68 rotates the correction finger 72 counterclockwise against the resilient return force of the fourth spring 76, so that the correction finger 72 advances the display wheel 6. with a step ( figure 12 ). When the owner of the watch releases the pressure on the push-button 57, the correction finger 72 is gradually released from the teeth 50 of the display wheel 6 as can be seen in the figures. figures 13 to 16 .
  • the safety device 52 comprises a fork 78 pivotally mounted around a fourth pivot center 80 and which is provided with a feeler 82.
  • This safety device 52 is coupled to the intermediate correction device 66 via an articulation 84 by example of a ball joint type. It will be noted that as a particular embodiment of the invention, the correction rocker 68 and the fork 78 can be made in one piece.
  • the correcting device 54, the intermediate correcting device 66 and the safety device 52 together form a linkage which is arranged so that when the flexible drive finger 4 engages with the toothing 50 of the display wheel 6 and that the owner of the watch simultaneously presses the push-button 57 to attempt to correct the indication provided by the retrograde horological display mechanism 1 according to the invention, the feeler 82 bears on the cam 46. L 'all of this linkage is thus momentarily blocked and pressure exerted by the owner of the watch on the control lever 56 remains ineffective thanks to the third spring 64 which stretches to tolerate additional pivoting of the control lever 56.
  • the present invention is not limited to the embodiment which has just been described and that various modifications and simple variants can be envisaged by those skilled in the art without departing from the scope of the invention as defined. by the appended claims. It will be understood in particular that it is not essential for the correction finger 72 to be elastic and to be constrained by the fourth spring 76. This solution is only dictated by considerations on the size of the retrograde horological display mechanism 1, the fact that the correction finger 72 can be retracted, in fact saving space. Nevertheless, the correction finger 72 can just as easily be rigid, without this jeopardizing the operating principles of the intermediate correction device 66. Likewise, as already mentioned above, the drive finger 4 can be.
  • the only notable difference in the case where the drive finger 4 is rigid lies in the fact that the correction of the current time displayed by the watch in which the retrograde horological display mechanism 1 is on board cannot be performed only one way. Indeed, we understand that when the owner of the watch corrects the current time, this has the effect of rotating the drive wheel 2 in order to avoid any risk of desynchronization between the display of the current time and the display of the indication provided by the retrograde horological display mechanism 1. Therefore, when the drive finger 4 is rigid, it means that it is fixedly mounted on the drive wheel 2, so that this drive wheel cannot rotate against the direction in which it turns when it drives the display wheel 6 via the drive finger 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP20175724.2A 2020-05-20 2020-05-20 Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist Active EP3913442B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20175724.2A EP3913442B1 (de) 2020-05-20 2020-05-20 Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist
US17/198,341 US20210364989A1 (en) 2020-05-20 2021-03-11 Retrograde timepiece display mechanism provided with a safety device
JP2021062632A JP7143471B2 (ja) 2020-05-20 2021-04-01 安全装置を具備する逆行計時器表示機構
RU2021114020A RU2761129C1 (ru) 2020-05-20 2021-05-18 Ретроградный часовой механизм индикации с предохранительным устройством
CN202110554602.1A CN113703306B (zh) 2020-05-20 2021-05-20 设置有安全装置的回跳时计显示机构

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20175724.2A EP3913442B1 (de) 2020-05-20 2020-05-20 Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist

Publications (2)

Publication Number Publication Date
EP3913442A1 true EP3913442A1 (de) 2021-11-24
EP3913442B1 EP3913442B1 (de) 2023-05-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20175724.2A Active EP3913442B1 (de) 2020-05-20 2020-05-20 Retrograder uhranzeigemechanismus, der mit einer sicherheitsvorrichtung ausgestattet ist

Country Status (5)

Country Link
US (1) US20210364989A1 (de)
EP (1) EP3913442B1 (de)
JP (1) JP7143471B2 (de)
CN (1) CN113703306B (de)
RU (1) RU2761129C1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4321939A1 (de) * 2022-08-09 2024-02-14 Patek Philippe SA Genève Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus
CH719977A1 (fr) * 2022-08-22 2024-02-29 Patek Philippe Sa Geneve Mécanisme horloger à affichage sautant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1134627A1 (de) * 2000-03-16 2001-09-19 Roger Dubuis S.A. Manufacture Dreifache rückläufige Anzeige und deren Mechanismus
EP1918792A1 (de) * 2006-11-06 2008-05-07 Compagnie des Montres Longines, Francillon SA Uhr, die einen Korrekturmechanismus für eine Vorrichtung zur Anzeige einer Zeitgröße umfasst
CH711184A2 (fr) * 2015-06-12 2016-12-15 Chanel Sa Genève Mouvement de montre comportant un mécanisme de correction rapide de l'heure courante.

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US5566136A (en) * 1996-03-18 1996-10-15 Timex Corporation Multifunctional holding plate for an analog wristwatch with date ring
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JP4737634B2 (ja) * 2006-08-30 2011-08-03 セイコーインスツル株式会社 回転ケージを含む機械式時計
ATE460690T1 (de) * 2007-01-30 2010-03-15 Longines Montres Comp D UHR, DIE EINEN ANTRIEBSMECHANISMUS EINER VORRICHTUNG ZUR ANZEIGE EINER MIT DER ZEIT ZUSAMMENHÄNGENDEN GRÖßE UMFASST
EP1962152B1 (de) * 2007-02-23 2009-09-16 Zenith International SA Schutzvorrichtung für Anzeige.
EP2159652A1 (de) * 2008-08-26 2010-03-03 Agenhor SA Anzeigemechanismus für Uhr, der die Anzeige sowie das Ausblenden der aktuellen Uhrzeit ermöglicht
CH699455B1 (fr) * 2008-09-05 2013-03-28 Montres Paul Picot S A Soc D Mécanisme d'affichage d'une information périodique.
EP2565729B1 (de) * 2011-08-30 2018-01-31 Breitling AG Kalendermechanismus
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EP3009893B1 (de) * 2014-10-13 2017-11-29 Montres Breguet SA Ewiger Kalender mit Ausgleichsgetriebe
EP3144743B1 (de) * 2015-09-15 2018-03-14 ETA SA Manufacture Horlogère Suisse Uhrwerk mit einem datumskorrektur-mechanismus
CH712217A2 (fr) * 2016-03-15 2017-09-15 Chanel Sa Genève Mouvement de montre comportant un affichage rétrograde et un anneau des heures sautant.
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1134627A1 (de) * 2000-03-16 2001-09-19 Roger Dubuis S.A. Manufacture Dreifache rückläufige Anzeige und deren Mechanismus
EP1918792A1 (de) * 2006-11-06 2008-05-07 Compagnie des Montres Longines, Francillon SA Uhr, die einen Korrekturmechanismus für eine Vorrichtung zur Anzeige einer Zeitgröße umfasst
CH711184A2 (fr) * 2015-06-12 2016-12-15 Chanel Sa Genève Mouvement de montre comportant un mécanisme de correction rapide de l'heure courante.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4321939A1 (de) * 2022-08-09 2024-02-14 Patek Philippe SA Genève Vorrichtung zur sofortigen auslösung für einen uhrwerkmechanismus
CH719977A1 (fr) * 2022-08-22 2024-02-29 Patek Philippe Sa Geneve Mécanisme horloger à affichage sautant

Also Published As

Publication number Publication date
CN113703306B (zh) 2023-01-13
RU2761129C1 (ru) 2021-12-06
JP7143471B2 (ja) 2022-09-28
EP3913442B1 (de) 2023-05-17
CN113703306A (zh) 2021-11-26
JP2021183960A (ja) 2021-12-02
US20210364989A1 (en) 2021-11-25

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