EP0940833B1 - Kalendermechanismus für Uhrwerk - Google Patents

Kalendermechanismus für Uhrwerk Download PDF

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Publication number
EP0940833B1
EP0940833B1 EP98103900A EP98103900A EP0940833B1 EP 0940833 B1 EP0940833 B1 EP 0940833B1 EP 98103900 A EP98103900 A EP 98103900A EP 98103900 A EP98103900 A EP 98103900A EP 0940833 B1 EP0940833 B1 EP 0940833B1
Authority
EP
European Patent Office
Prior art keywords
units
tens
zero
indicator member
mechanism according
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.)
Expired - Lifetime
Application number
EP98103900A
Other languages
English (en)
French (fr)
Other versions
EP0940833A1 (de
Inventor
Edmond Capt
Alain Zaugg
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.)
Frederic Piguet SA
Original Assignee
Frederic Piguet SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frederic Piguet SA filed Critical Frederic Piguet SA
Priority to EP98103900A priority Critical patent/EP0940833B1/de
Priority to DE69806337T priority patent/DE69806337T2/de
Priority to US09/259,256 priority patent/US6081483A/en
Priority to JP05803499A priority patent/JP4307613B2/ja
Publication of EP0940833A1 publication Critical patent/EP0940833A1/de
Application granted granted Critical
Publication of EP0940833B1 publication Critical patent/EP0940833B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/24—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars
    • G04B19/243—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator
    • G04B19/247—Clocks or watches with date or week-day indicators, i.e. calendar clocks or watches; Clockwork calendars characterised by the shape of the date indicator disc-shaped
    • 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

Definitions

  • the present invention relates to a mechanism for calendar for watch movement and more particularly such a mechanism allowing the display large dates, and a watch comprising such a mechanism.
  • Wrist watches with a device date display with classic windows generally the disadvantage of being difficult to read due to the small size of the counters and the numbers transferred onto the indicator organs visible through these counters.
  • the main object of the present invention is to remedy the drawbacks of the aforementioned prior art by providing a date display mechanism of large dimensions and therefore more readable, mechanism that does not requires only extremely simple means and little manufacturing modifications of the basic movement in which it is integrated.
  • the invention relates to a mechanism for date for watch movement according to claim 1.
  • the date according to the invention allows, on the one hand, to display large calendars and, on the other hand, the change from the end of the month to thirty-one days on the first day of the following month without acting on a correction.
  • the transition from the end of the month to the first day of following month is done using a mechanism of correction of classic dates.
  • the unit indicator body is associated with a first toothing with thirty-one teeth which cooperates with an organ coach, and a second toothing having four teeth of which three teeth drive the indicator organ of tens when crossing the "zero" of a graduation of the unit indicating unit at the "one” of the graduation next, while the fourth tooth drives the organ tens indicator when passing "one" additional from the graduation modified to the next "one".
  • the organ unit indicator consists of an annular disc and the first and second teeth are teeth interior spaces that extend in two different planes.
  • the watch shown schematically in Figure 1 includes a date mechanism designated by the general numerical reference 1.
  • the watch includes also other indicator mechanisms and organs. These will however not be described here since they are known to those skilled in the art and that they do not relate by directly the date mechanism according to the present invention.
  • the watch equipped of the date mechanism 1 comprises a dial 2 provided with two windows 4, 6 juxtaposed with six hours which in another form of execution could be brought together in one large window.
  • Window 4 leaves appear a figure relating to the tens of a calendar, while the window 6 reveals a number relating to the units of a date so as to allow, according to their relative positions, the indication of digits from "one" to "thirty-one".
  • the tens indicator body 8 carries a graduation from “zero” to “three” or from “one” to “three” more one blank, and is scheduled to take one step every ten days.
  • the indicator unit 10 has three successive graduations 10a, 10b, and 10c from “zero” to "new", the 10c graduation, known as modified graduation, having an additional "a” inserted between its "zero” and its "a”.
  • the indicator member 8 can occupy four positions different, while the indicator member 10 can occupy thirty-one different positions.
  • the organ unit indicator 10 consists of an annular disc associated with a first internal toothing 12 comprising thirty-one teeth.
  • a driving member 14 having the shape of a training finger and belonging to a basic movement M conventionally turns every twenty-four hours, training in a conventional manner the annular disc 10 by action on the teeth 12.
  • a long necklace (not shown) secured to the basic movement M acts on the teeth 12 to hold the annular disc 10 in place when not driven.
  • the organ unit indicator 10 is also associated with a second internal toothing 16 having four teeth 16a, 16b, 16c, and 16d.
  • teeth are distributed at the inner periphery of the annular disc 10 so that they drive the tens indicator body 8 during the respective passage of the "zero" of the graduations 10a, 10b and 10c from the indicator unit 10 to the "one” of the next graduation.
  • the fourth tooth 16d drives the tens indicator body 8 when passing the "one” additional graduation modified 10c to "one” following this same graduation.
  • the teeth 12 and 16 extend in two different planes, the teeth 16 cooperating with a star 18 with four teeth secured to the indicator member of the tens 8, star 18 being positioned by a jumper 20.
  • the indicator body of the tens 8 moves above the annular disc 10 and includes cutouts that reveal the number units carried by said annular disc 10 and in front be displayed through window 6.
  • the tens indicator 8 consists of a disc cut in the shape of a cross with four branches, the branches marked with the numbers “zero”, “one", “two” respectively and “three” as shown, or "one", "two", “three” and a white.
  • the mechanism according to the invention further comprises a support plate 22 of the star 18, of the tens cross 8 and the annular disc of the units 10.
  • This plate 22 is arranged on the surface of the basic movement M at which is associated with the date mechanism according to the invention. More specifically, the star 18 is rotatably mounted in a recess 24 made in the upper surface 26 of plate 22, the tens cross 8, integral with the star 18, extending in a second recess 28 also produced in surface 26 and located between this surface and the bottom of the recess 24.
  • the plate 22 also includes, dug in its surface 26, a path annular 30 on which the indicator member of the units 10. This annular path 30 includes a recess 32 in which the internal teeth 12 extend to cooperate with the training finger 14.
  • the drive finger 14 acts once every twenty-four hours on toothing 12 to advance the disc annular 10 of a thirty-first of a turn. So a digit of any unit of date appeared, by example, at midnight in window 6, will be replaced when passage at midnight following by the number which makes it after.
  • the finger drive 14 acts on the teeth 12, as described above, to pass the "nine" of the graduation of units corresponding to "zero” of the following graduation, teeth 16a, 16b and 16c of teeth 16 acting on the star 18 to simultaneously pass the number of tens from “zero” to "one", from “one” to “two” and from “two” to “three” respectively.
  • teeth 16a, 16b, and 16c are arranged respectively appreciably opposite the figures "eight" graduations 10a, 10b, 10c.
  • the drive finger 14 acts normally on the teeth 12, as described above, and passes the "zero" of the graduation of units 10b at the first "one” of the graduation of units 10c, none of the teeth of toothing 16 not acting at this moment on the star 18, so that the cross 10 remains stationary and always displays the "three" of tens.
  • the date mechanism according to the invention is designed so that the cross 8 tens performs one revolution per month in four steps, the same tooth of the teeth 16 always producing the display of the same figure, while the annular disc makes a turn every thirty-one days.
  • the change from the last day of this month to "one" of the following month can be performed using a correction device 34 with sliding pinion and rocker known per se which acts directly on the teeth 12 of the annular disc 10.
  • the device 34 notably comprises a wheel 36 engaged with a sliding pinion 38 with three teeth.
  • the wheel 36 drives the pinion 38 guided in an oblong hole (not shown) for engaging with the teeth 12 of the annular disc 10.
  • the latter is then moved clockwise by the number of steps required to bring up the second "one" of the graduation 10c in window 6.
  • the pinion 38 is released from the teeth 12 when the rod 40 is actuated in the opposite direction of rotation to the first direction.
  • the date mechanism according to the invention can, without major modification, use the correction of dates of a classic movement.
  • the use of such a correction mechanism allows manually ensure the passage from the end of a month of less than thirty-one days on the first day of the month following easily and quickly.

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

Claims (9)

  1. Datumsmechanismus für Uhrwerk (M), der ein Anzeigeorgan (8) für die Zehnerstellen mit vier Positionen, das eine Skaleneinteilung entweder von "null" bis "drei" oder von "eins" bis "drei" und einen Leerraum trägt und dazu vorgesehen ist, alle zehn Tage einen Schritt auszuführen, und ein Anzeigeorgan (10) für die Einerstellen, das dazu vorgesehen ist, jeden Tag einen Schritt auszuführen, umfaßt, dadurch gekennzeichnet, daß das Anzeigeorgan (10) für die Einerstellen einunddreißig Positionen einnehmen kann und drei aufeinanderfolgende Skaleneinteilungen von "null" bis "neun" trägt, wobei eine dieser drei Skaleneinteilungen, die modifizierte Skaleneinteilung genannt wird, eine zusätzliche "Eins" besitzt, die zwischen ihre "Null" und ihre "Eins" eingefügt ist, daß das Anzeigeorgan (10) für die Einerstellen aus einer ringförmigen Scheibe besteht, daß der Mechanismus eine Platte (22) umfaßt, die am Uhrwerk angebracht ist, und daß die Platte (22) auf ihrer oberen Oberfläche einen ringförmigen Weg (30) aufweist, auf dem sich die Scheibe (10) der Einerstellen bewegt.
  2. Datumsmechanismus nach Anspruch 1, dadurch gekennzeichnet, daß dem Anzeigeorgan (10) für die Einerstellen eine erste Zahnung (12) mit einunddreißig Zähnen zugeordnet ist, die mit einem Antriebsorgan (14) zusammenwirkt, und eine zweite Zahnung (16) zugeordnet ist, die vier Zähne umfaßt, wovon drei Zähne das Anzeigeorgan (8) für die Zehnerstellen antreiben, wenn in einer Skaleneinteilung des Anzeigeorgans (10) für die Einerstellen ein Übergang von "Null" nach "Eins" der folgenden Skaleneinteilung stattfindet, und wovon der vierte Zahn das Anzeigeorgan (8) für die Zehnerstellen antreibt, wenn ein Übergang von der zusätzlichen "Eins" der modifizierten Skaleneinteilung zu der folgenden "Eins" stattfindet.
  3. Datumsmechanismus nach Anspruch 2, dadurch gekennzeichnet, daß die ersten und zweiten Zahnungen (12) bzw. (16) Innenzahnungen sind, die in zwei verschiedenen Ebenen verlaufen.
  4. Datumsmechanismus nach Anspruch 2, dadurch gekennzeichnet, daß sich das Anzeigeorgan (8) für die Zehnerstellen über dem Anzeigeorgan (10) für die Einerstellen bewegt und Ausschnitte aufweist, die die Ziffer der Einerstellen erkennen lassen, bevor sie angezeigt wird.
  5. Datumsmechanismus nach Anspruch 4, dadurch gekennzeichnet, daß das Anzeigeorgan (10)für die Einerstellen aus einer Scheibe besteht, die kreuzförmig ausgeschnitten ist und der ein Stern (18) mit vier Strahlen zugeordnet ist, der mit der zweiten Zahnung zusammenwirkt.
  6. Datumsmechanismus nach Anspruch 5, dadurch gekennzeichnet, daß die Scheibe (8) und der Stern (18) für die Zehnerstellen an der Platte (22) drehbar angebracht sind.
  7. Datumsmechanismus nach Anspruch 6, dadurch gekennzeichnet, daß der ringförmige Weg (30) eine Vertiefung (32) aufweist, in der die erste Innenzahnung (12) verläuft, um mit dem Antriebsorgan (14) zusammenzuwirken.
  8. Datumsmechanismus nach Anspruch 7, dadurch gekennzeichnet, daß die erste Zahnung (12) unterhalb der Höhe der zweiten Zahnung (16) verläuft.
  9. Uhr, die ein Uhrwerk (M) umfaßt, über dem ein Zifferblatt angebracht ist, wobei das Uhrwerk mit einem Datumsmechanismus ausgerüstet ist, der ein Anzeigeorgan (8) für die Zehnerstellen mit vier Positionen, die eine Skaleneinteilung entweder von "null" bis "drei" oder von "eins" bis "drei" und eine Leerstelle trägt und dazu vorgesehen ist, alle zehn Tage einen Schritt auszuführen, und ein Anzeigeorgan (10) für die Einerstellen, das dazu vorgesehen ist, jeden Tag einen Schritt auszuführen, umfaßt, wobei das Datum durch eine im Zifferblatt vorgesehene kleine Öffnung erkennbar ist, dadurch gekennzeichnet, daß das Anzeigeorgan (10) für die Einerstellen einunddreißig Positionen einnehmen kann und drei aufeinanderfolgende Skaleneinteilungen von "null" bis "neun" trägt, wobei eine dieser drei Skaleneinteilungen, die modifizierte Skaleneinteilung genannt wird, eine zusätzliche "Eins" besitzt, die zwischen ihre "Null" und ihre "Eins" eingefügt ist, und daß die kleine Öffnung außerhalb der 12-Uhr-Position vorgesehen ist.
EP98103900A 1998-03-05 1998-03-05 Kalendermechanismus für Uhrwerk Expired - Lifetime EP0940833B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP98103900A EP0940833B1 (de) 1998-03-05 1998-03-05 Kalendermechanismus für Uhrwerk
DE69806337T DE69806337T2 (de) 1998-03-05 1998-03-05 Kalendermechanismus für Uhrwerk
US09/259,256 US6081483A (en) 1998-03-05 1999-03-01 Date mechanism for clockwork movement
JP05803499A JP4307613B2 (ja) 1998-03-05 1999-03-05 時計ムーブメントのための日付機構

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98103900A EP0940833B1 (de) 1998-03-05 1998-03-05 Kalendermechanismus für Uhrwerk

Publications (2)

Publication Number Publication Date
EP0940833A1 EP0940833A1 (de) 1999-09-08
EP0940833B1 true EP0940833B1 (de) 2002-07-03

Family

ID=8231537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103900A Expired - Lifetime EP0940833B1 (de) 1998-03-05 1998-03-05 Kalendermechanismus für Uhrwerk

Country Status (4)

Country Link
US (1) US6081483A (de)
EP (1) EP0940833B1 (de)
JP (1) JP4307613B2 (de)
DE (1) DE69806337T2 (de)

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Also Published As

Publication number Publication date
DE69806337T2 (de) 2003-06-05
DE69806337D1 (de) 2002-08-08
EP0940833A1 (de) 1999-09-08
JP4307613B2 (ja) 2009-08-05
US6081483A (en) 2000-06-27
JP2000065957A (ja) 2000-03-03

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