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EP1445671B1 - Uhrwerk mit zwei gegenüberliegenden analogen Anzeigen - Google Patents

Uhrwerk mit zwei gegenüberliegenden analogen Anzeigen Download PDF

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Publication number
EP1445671B1
EP1445671B1 EP20030405061 EP03405061A EP1445671B1 EP 1445671 B1 EP1445671 B1 EP 1445671B1 EP 20030405061 EP20030405061 EP 20030405061 EP 03405061 A EP03405061 A EP 03405061A EP 1445671 B1 EP1445671 B1 EP 1445671B1
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EP
European Patent Office
Prior art keywords
seconds
display
hand
teeth
wheel
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
EP20030405061
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English (en)
French (fr)
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EP1445671A1 (de
Inventor
Walter Schlup
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to EP20030405061 priority Critical patent/EP1445671B1/de
Priority to DE60305432T priority patent/DE60305432D1/de
Publication of EP1445671A1 publication Critical patent/EP1445671A1/de
Application granted granted Critical
Publication of EP1445671B1 publication Critical patent/EP1445671B1/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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • G04B19/025—Back-gearing arrangements between gear train and hands for simultaneous indicating on several dials

Definitions

  • Some of these movements comprise, in addition, a second display disposed on their second face, the needles of which move in synchronism with the first display.
  • a second display disposed on their second face, the needles of which move in synchronism with the first display.
  • One of the displays is the main display indicating the hours, minutes, and seconds of the local time zone using hands, while the second display on the oscillating weight side gives only the hours and minutes of a different time zone that can be chosen at will.
  • the hands of the two displays each pivot in the conventional direction opposite the respective dials, but the absence of the second hand on the second display is, in this embodiment, a drawback because it is necessary to return the watch to obtain the l hour to the nearest second.
  • both needles are fixed on the same shaft, so that if the second hand of one of the displays rotates in the correct direction, the seconds hand of the second display will turn in the wrong direction .
  • This can be a source of reading error.
  • such a solution despite the simplicity of its realization, can not, at best, be suitable only for fancy watches.
  • the object of the present invention is to provide a movement with two opposing displays having a simple and inexpensive mechanism for driving in the correct direction, from a mobile of the main display, the seconds hand of the second display.
  • An advantage of the invention is that it uses only one idler wheel between the two wheels of the seconds, which simplifies the construction of the movement while decreasing the play of the second hand seconds.
  • Such a movement may advantageously comprise a second gear set, driven by a mobile of the first gear set, comprising mobiles intended to drive in synchronism with the hands of the first display of the hour and minute hands.
  • the second display disposed opposite the other side of the movement.
  • the movement may comprise, in addition, an oscillating mass pivotally mounted on the frame around the pivot axis of the second wheels.
  • the mass is advantageously provided with an opening in its central part, the mobile carrying the needles of the second display and the wheel bearing the second hand of the seconds being engaged in this opening.
  • the teeth of the second wheels are oriented axially and the teeth of the return wheel radially.
  • the teeth of the second wheels are oriented radially and the teeth of the return wheel axially.
  • Another advantage results from the possibility of turning the idler wheel in the existing bridge of the movement necessary to support the shafts of the wheels of the seconds.
  • FIGS. 1 and 2 represent the movement according to the invention, obtained by the modification of the movement cited in the document EP 511530. It is an automatic sprung-balance movement equipped with a barrel 10 which constitutes its source energy. This movement comprises a frame 11 on which are mounted its moving parts. It is delimited by two substantially plane and parallel faces, respectively referenced 1 and 2. In front of the first face 1 is arranged a first analog time display comprising hands of hours 3h, minutes 3m and seconds 3s, and which is the main display of the watch.
  • an oscillating mass 7 pivotally mounted by means of a ball bearing 12, on a tube 13 formed on the frame 11, and 5h hours hands, 5m minutes and 100 seconds seconds.
  • a second display Opposite the second face 2 is an oscillating mass 7 pivotally mounted by means of a ball bearing 12, on a tube 13 formed on the frame 11, and 5h hours hands, 5m minutes and 100 seconds seconds.
  • the oscillating mass 7 and the needles pivot about a common axis of revolution xx 'passing through the center of the movement.
  • the hands of a display rotate in opposite directions to those of the other.
  • a time-setting rod 6 makes it possible, in an axial position, to move the hour and minute hands of the two displays in synchronism, and, in another axial position, the hands of one of the displays independently of those from the other display.
  • This arrangement is advantageous for a watch pivotally mounted in a housing around the axis 3-9 hours. If pivoting is done around the 6-12 hour axis, two time setting rods would be preferable, each rod controlling one of the displays. Such an embodiment being within the reach of those skilled in the art, it will not be described.
  • the seconds hand 100 has been added to the original movement. It is mounted on a shaft 101 which passes through the shaft 27 supporting the minute hand 5m. At one end of the shaft 101 is fixed the needle 100, while the other end of this shaft pivots in a stone, supported by an intermediate bridge 102, part of the frame 11, and in which also pivots an end of the shaft 27, integral in rotation with the seconds hand 3s of the first display.
  • the bridge 102 already existed in the original movement. It is not represented in the cited document, but it is the one that supports the pivoting stone of the shaft 27. In a movement with two opposite concentric displays, such a bridge is generally necessary to support at least the shaft of the seconds hand of the first display.
  • a second gear wheel 26, or first seconds wheel which has a radial toothing 26 'meshing with a pinion 30 in order to drive in rotation the wheel of exhaust 32.
  • the wheel 26 is also used in the present invention to set in motion the second hand 100.
  • a second gear 103 seconds is fixed for this purpose on the shaft 101, opposite the bridge 102.
  • the wheel 103 comprises in addition to an axial toothing 105.
  • the teeth 104 and 105 face each other. , on both sides of the bridge 102.
  • a gear wheel 107 which has a radial toothing 108 engaging with the teeth 104 and 105.
  • the wheel 107 is pivotally mounted on the bridge 102 around a axis of revolution oriented perpendicularly to the axis xx 'and intersecting this axis.
  • the bridge 102 has a removable portion 109 into which penetrates one end of the shaft of the wheel.
  • the return wheel 107 may be made of metal or plastic and have a diameter close to the thickness of the bridge 102, resulting in a small increase in the height of the movement. As the wheel 107 is, in addition, the only mobile link between the wheels 26 and 103, the play of the needle 100 is reduced to its lowest possible value.
  • the return wheel 107 has an axial toothing 110, and the second wheel 103 a radial toothing 111, identical in diameter and number of teeth at the radial toothing 26 'of the first seconds wheel 26.
  • the return wheel 107 is pivotally mounted in the removable portion 109 of the bridge 102 so as to engage the teeth 111 and 26' of the wheels 103 and 26, and realize in this way the transmission of the rotational movement from one wheel to the other in the desired direction. Since the diameter of the wheel 107 is only slightly greater than the height of the bridge 102, this solution makes it possible to further reduce the height of the movement.
  • the movement is an analog electronic movement comprising a mobile running one revolution per minute and supporting the second hand of the main display
  • the second hand of the other display can, of course, also be rotated, as in the embodiment described, by a single return wheel.

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

Claims (6)

  1. Analoges Uhrwerk, das durch zwei gegenüberliegende, ziemlich genau ebene und planparallele Hauptflächen (1, 2) begrenzt ist und mehrere Elemente umfasst, nämlich :
    - ein Gestell (11),
    - eine Energiequelle (10),
    - ein erstes Räderwerk, das von der besagten Energiequelle angetrieben wird und seinerseits zum Antrieb der Zeiger (3h, 3m, 3s) einer ersten, gegenüber einer (1) der besagten Hauptflächen angeordneten Stundenanzeige bestimmt ist und ein Sekunden-Zahnrad (26) umfasst, das eine Umdrehung in der Minute vollführt,
    dadurch gekennzeichnet, dass es zudem weitere Elemente umfasst, und zwar:
    - ein weiteres Sekunden-Zahnrad (103), das zum Antrieb eines zweiten Sekundenzeigers (100) bestimmt ist, wobei die beiden besagten Sekundenräder (26, 103) um eine gemeinsame, durch ihre Zentren normal zu den besagten Hauptflächen (1, 2) verlaufende Achse (xx') drehen und Verzahnungen (105, 104 ; 111, 26') gleichen Durchmessers und gleicher Zähnezahl aufweisen, und
    - ein Zwischenzahnrad (107), das auf dem Gestell (11) um eine durch sein Zentrum normal zu den besagten Hauptflächen (1, 2) verlaufende Achse dreht und dessen Verzahnung (108; 110) in die Verzahnungen der besagten Sekundenräder (26, 103) eingreift, um den Sekundenzeiger (100) der besagten zweiten Anzeige im umgekehrten Drehsinn des Sekundenzeigers (3s) der besagten ersten Anzeige anzutreiben.
  2. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, dass es ein zweites, von einem Radsatz des ersten Räderwerks angetriebenes Räderwerk umfasst, das seinerseits Radsätze umfasst, die dazu bestimmt sind, den Stunden- (5h) und den Minutenzeiger (5m) einer gegenüber der besagten anderen Hauptfläche (2) angeordneten zweiten Anzeige synchron zum Zeigerpaar der ersten Anzeige anzutreiben.
  3. Uhrwerk nach Anspruch 2, dadurch gekennzeichnet, dass es im Weiteren eine auf dem Gestell (11) um die besagte Achse (xx') drehbar gelagerte, mit einer zentralen Öffnung versehene Schwingmasse (7) umfasst, wobei die Radsätze der zweiten Anzeige, auf denen das Zeigerpaar (5h, 5m) sitzt, und das Rad, auf dem der zweite Sekundenzeiger (100) sitzt, in die besagte Öffnung hineinragen.
  4. Uhrwerk nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Zähne der Verzahnungen (104, 105) der besagten Sekundenräder (26, 103) axial, und die Zähne der Verzahnung (108) des besagten Zwischenrades (107) radial ausgerichtet sind.
  5. Uhrwerk nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Zähne der Verzahnungen (26', 111) der besagten Sekundenräder (26, 103) radial, und die Zähne der Verzahnung (110) des besagten Zwischenrades (107) axial ausgerichtet sind.
  6. Uhrwerk nach einem der vorangehenden Ansprüche, dessen Gestell (11) eine Brücke (102) umfasst, die dazu bestimmt ist, die Enden der fest mit den besagten Sekundenrädern (26, 103) verbundenen Achswellen (27, 101) zu stützen, dadurch gekennzeichnet, dass die besagte Brücke (102) ebenfalls zur Stützung mindestens eines der Enden der Achswelle des besagten Zwischenrades (107) dient.
EP20030405061 2003-02-05 2003-02-05 Uhrwerk mit zwei gegenüberliegenden analogen Anzeigen Expired - Lifetime EP1445671B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20030405061 EP1445671B1 (de) 2003-02-05 2003-02-05 Uhrwerk mit zwei gegenüberliegenden analogen Anzeigen
DE60305432T DE60305432D1 (de) 2003-02-05 2003-02-05 Uhrwerk mit zwei gegenüberliegenden analogen Anzeigen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20030405061 EP1445671B1 (de) 2003-02-05 2003-02-05 Uhrwerk mit zwei gegenüberliegenden analogen Anzeigen

Publications (2)

Publication Number Publication Date
EP1445671A1 EP1445671A1 (de) 2004-08-11
EP1445671B1 true EP1445671B1 (de) 2006-05-24

Family

ID=32605484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030405061 Expired - Lifetime EP1445671B1 (de) 2003-02-05 2003-02-05 Uhrwerk mit zwei gegenüberliegenden analogen Anzeigen

Country Status (2)

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EP (1) EP1445671B1 (de)
DE (1) DE60305432D1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1432566A (en) * 1920-03-01 1922-10-17 George Seeber Sr Secondary clock
FR1161758A (fr) * 1955-10-15 1958-09-04 Pendulette double-face
CH682032B5 (fr) * 1991-04-15 1994-01-14 Rafal S.A. Montre automatique et mécanisme de mise à l'heure.
CH684620B5 (fr) * 1993-01-29 1995-05-15 Walter Schlup Mouvement d'horlogerie comportant deux affichages analogiques opposés.

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Publication number Publication date
EP1445671A1 (de) 2004-08-11
DE60305432D1 (de) 2006-06-29

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