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EP2685326B1 - Watch dial attached to a mainplate - Google Patents

Watch dial attached to a mainplate Download PDF

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Publication number
EP2685326B1
EP2685326B1 EP12176187.8A EP12176187A EP2685326B1 EP 2685326 B1 EP2685326 B1 EP 2685326B1 EP 12176187 A EP12176187 A EP 12176187A EP 2685326 B1 EP2685326 B1 EP 2685326B1
Authority
EP
European Patent Office
Prior art keywords
dial
bottom plate
plate
screw
peripheral edge
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.)
Active
Application number
EP12176187.8A
Other languages
German (de)
French (fr)
Other versions
EP2685326A1 (en
Inventor
David CorrĂȘa
Yvan Ferri
Stéphane Rychen
Roger Willemin
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP12176187.8A priority Critical patent/EP2685326B1/en
Priority to US13/937,767 priority patent/US8873346B2/en
Priority to JP2013145172A priority patent/JP5667250B2/en
Priority to KR1020130082483A priority patent/KR101477914B1/en
Priority to CN201310292676.8A priority patent/CN103543632B/en
Publication of EP2685326A1 publication Critical patent/EP2685326A1/en
Application granted granted Critical
Publication of EP2685326B1 publication Critical patent/EP2685326B1/en
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
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/14—Fastening the dials to the clock or watch plates

Definitions

  • the present invention relates to a watch face fixed on a plate. More specifically, the invention relates to a watch dial fixed to a plate by means of fixing means.
  • the technique conventionally used to ensure the maintenance of a watch face on a platen consists in equipping this dial with dial feet which are locked by means of corresponding dial keys.
  • One of the disadvantages of this technique is that the dial feet are fragile and they can easily break in case of shock.
  • the dial feet are not repairable by themselves, the complete dial must be replaced, provided that it is still available as a spare part, which is not always the case.
  • the document CH 367 759 A an assembly comprising a watch face and a platen, the platen being delimited by an upper peripheral flange which is extended downwardly by an outer peripheral surface.
  • the watch face is fixed on the outer peripheral edge of the plate with two screws taking in the plate.
  • the present invention aims to overcome the aforementioned drawbacks as well as others by providing a watch dial fixed on a plate with new fastening means which are both simple and reliable.
  • the present invention relates to an assembly comprising a watch face and a turntable, the turntable being defined by an upper peripheral edge which is extended downwards by an outer peripheral surface, the watch face being fixed on the peripheral rim the top of the board using at least one first and one second fixing means, this assembly being characterized in that the first fixing means comprises a boss provided on the outer periphery of the plate, the dial having a peripheral edge through which it is held between a head of a nail or a screw and the ledge upper peripheral of the plate, the head of the nail or the screw being extended by a rod which is housed in the boss of the plate.
  • the present invention provides an assembly comprising a watch face and a plate in which the peripheral edge of the dial is held between the head of a nail or a screw and the upper peripheral edge of the plate, the stem of the nail or screw being received in a boss formed on the outer periphery of the plate.
  • the dial is thus immobilized using simple, reliable and very economical means.
  • the bosses formed on the outer periphery of the plate can be obtained very simply by molding or injection of the plastic material.
  • the second fixing means comprises a slot provided on the upper peripheral edge of the plate, the dial being housed by its peripheral edge in the slot of the plate.
  • the second fixing means comprises a second projection provided on the outer periphery of the plate, a second nail or a second screw holding the peripheral edge of the dial against the upper peripheral edge of the plate by its head, the head of the second nail or the second screw being extended by a rod which is housed in the second boss of the plate.
  • the dial is disposed between a flange and the plate, the nail or the screw being driven or screwed into the flange and coming to take the flange sandwiched between its head and its rod which is housed in the boss of the platinum.
  • the plate comprises at least one centering pin on its upper peripheral edge and the dial comprises on its peripheral edge a notch arranged to cooperate with the centering pin.
  • the present invention proceeds from the general inventive idea of using nails or screws to fix the dial of a watch on a platen.
  • Such fastening means are means that are both simple and therefore economical and that ensure a perfectly reliable immobilization of the dial.
  • the dial does not need to be modified because it is simply held between the head of the nail or the screw and the upper peripheral edge of the plate.
  • the only particular provision relates to the plate that must be provided on its outer periphery as many bosses as are provided with nails or screws. This does not pose a significant problem, however, especially when the plate is made of a molded plastic material or injected. Indeed, it is sufficient in this case to provide in the mold the recesses corresponding to the bosses.
  • a first embodiment of the invention is illustrated in connection with the Figures 1 to 3 .
  • the dial is obtained for example from a metal sheet or a plastic sheet.
  • the dial 1 and the plate 2 are generally circular. It will be understood, however, that the invention is not limited to such a geometry and that the dial 1 and the plate 2 can be of any shape such as square or rectangular.
  • the plate 2 is generally in the form of a ring. It is delimited upwards by a circular peripheral edge 4 on which the dial 1 will come to bear and which is extended downwards by an outer peripheral surface 6.
  • the plate 2 is provided, at a location along the length of its upper peripheral rim 4, with a slot 8 in an arc in which the edge is slid Device 10 of the dial 1.
  • the slot 8 thus provides a first holding point along the vertical axis of the dial 1 on the plate 2.
  • the dial 1 is maintained on the plate 2 according to at least one second point.
  • a screw 12 is used which comprises a head 14 extended by a rod 16.
  • the dial 1 will be held at a location of its peripheral edge 10 between the head 14 of the screw 12 and the upper peripheral edge 4 of the 2.
  • the screw 12 therefore provides a second point for holding the dial 1 on the plate 2 at a time in a vertical direction perpendicular to the plane of the dial 1 and in a radial direction.
  • the boss 18 is formed by an additional material provided locally on the outer peripheral surface 6 of the plate 2 and sufficient to allow screwing of the screw 12.
  • the boss 18 can be obtained very simply by molding or injection of the plastic material.
  • the boss 18 is surmounted by a stud 20.
  • This stud 20 against which the dial 1 bears by its peripheral edge 10 stands on the surface of the upper peripheral edge 4 of the plate 2 and is provided to ensure better guidance of the screw 12.
  • the screw 12 is scheduled at noon and the slot 8 is arranged at six o'clock.
  • the screw 12 and the slot 8 ensure a perfect hold of the dial 1 on the plate 2, so that no other means of maintenance is necessary. For example, at nine o'clock (see figure 3C ), the dial 1 is in simple support on the plate 2.
  • the figure 4 illustrates an alternative embodiment of the invention wherein the dial 1 is fixed on the plate 2 by means of two nails 22 at least three in the example shown.
  • the corresponding bosses 18 are provided on the outer peripheral surface 6 of the plate 2 for example at regular distance intervals from each other.
  • the nail 22 scheduled at noon ( Figure 6A ) has a head 24 larger than the nail 22 provided at four o'clock ( Figure 6B ), the head of these nails being extended by a rod 26.
  • the plate 2 comprises at least one centering pin 28 on its upper peripheral edge 4 and the dial 1 comprises on its peripheral edge 10 a notch 30 arranged to cooperate with the centering pin 28
  • a polarizing element such as a pin 32 which is provided on the upper peripheral edge 4 of the plate 2 for example at six o'clock is housed in a corresponding housing 34 formed on the peripheral edge 10 of the dial 1.
  • the figure 7 illustrates another embodiment in which the dial 1 is sandwiched between a flange 36 and the upper peripheral edge 4 of the plate 2.
  • nails 22 are driven into the flange 36, the rod 26 of these nails 22 being housed in the corresponding bosses 18 provided on the outer peripheral surface 6 of the plate 2.
  • the flange 36 is thus held between the head 24 of the nails 22 and the upper peripheral rim 4 of the dial 1 and clasps the dial 1.
  • FIG 8 illustrates yet another alternative embodiment of the invention in which a fastening foot 38 which comes from material with the flange 36 and which is housed in the corresponding boss 18 of the plate 2 can take the dial 1 sandwiched between the flange 36 and the plate 2.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Connection Of Plates (AREA)
  • Supports Or Holders For Household Use (AREA)
  • Adornments (AREA)
  • Electric Clocks (AREA)

Description

La présente invention concerne un cadran de montre fixé sur une platine. Plus précisément, l'invention concerne un cadran de montre fixé sur une platine à l'aide de moyens de fixation.The present invention relates to a watch face fixed on a plate. More specifically, the invention relates to a watch dial fixed to a plate by means of fixing means.

La technique classiquement utilisée pour assurer le maintien d'un cadran de montre sur une platine consiste à équiper ce cadran de pieds de cadran qui sont verrouillés au moyen de clefs de cadran correspondantes. L'un des inconvénients de cette technique est que les pieds de cadran sont fragiles et qu'ils peuvent facilement casser en cas de choc. Les pieds de cadran n'étant pas en soi réparables, il faut remplacer le cadran complet, sous réserve que celui-ci soit encore disponible sous forme de piÚce détachée, ce qui n'est pas toujours le cas.The technique conventionally used to ensure the maintenance of a watch face on a platen consists in equipping this dial with dial feet which are locked by means of corresponding dial keys. One of the disadvantages of this technique is that the dial feet are fragile and they can easily break in case of shock. The dial feet are not repairable by themselves, the complete dial must be replaced, provided that it is still available as a spare part, which is not always the case.

Le document CH 367 759 A un ensemble comprenant un cadran de montre et une platine, la platine étant délimitée par un rebord périphérique supérieur qui est prolongé vers le bas par une surface périphérique extérieure. Le cadran de montre est fixé sur le rebord périphérique extérieur de la platine à l'aide de deux vis prenant dans la platine.The document CH 367 759 A an assembly comprising a watch face and a platen, the platen being delimited by an upper peripheral flange which is extended downwardly by an outer peripheral surface. The watch face is fixed on the outer peripheral edge of the plate with two screws taking in the plate.

La présente invention a pour but de remédier aux inconvénients susmentionnés ainsi qu'à d'autres encore en procurant un cadran de montre fixé sur une platine à l'aide de nouveaux moyens de fixation qui sont à la fois simples et fiables.The present invention aims to overcome the aforementioned drawbacks as well as others by providing a watch dial fixed on a plate with new fastening means which are both simple and reliable.

A cet effet, la prĂ©sente invention concerne un ensemble comprenant un cadran de montre et une platine, la platine Ă©tant dĂ©limitĂ©e par un rebord pĂ©riphĂ©rique supĂ©rieur qui est prolongĂ© vers le bas par une surface pĂ©riphĂ©rique extĂ©rieure, le cadran de montre Ă©tant fixĂ© sur le rebord pĂ©riphĂ©rique supĂ©rieur de la platine Ă  l'aide d'au moins un premier et un second moyens de fixation, cet ensemble Ă©tant caractĂ©risĂ© en ce que le premier moyen de fixation comprend un bossage prĂ©vu sur la pĂ©riphĂ©rie extĂ©rieure de la platine, le cadran prĂ©sentant un bord pĂ©riphĂ©rique par lequel il est maintenu entre une tĂȘte d'un clou ou d'une vis et le rebord pĂ©riphĂ©rique supĂ©rieur de la platine, la tĂȘte du clou ou de la vis Ă©tant prolongĂ©e par une tige qui est logĂ©e dans le bossage de la platine.For this purpose, the present invention relates to an assembly comprising a watch face and a turntable, the turntable being defined by an upper peripheral edge which is extended downwards by an outer peripheral surface, the watch face being fixed on the peripheral rim the top of the board using at least one first and one second fixing means, this assembly being characterized in that the first fixing means comprises a boss provided on the outer periphery of the plate, the dial having a peripheral edge through which it is held between a head of a nail or a screw and the ledge upper peripheral of the plate, the head of the nail or the screw being extended by a rod which is housed in the boss of the plate.

GrĂące Ă  ces caractĂ©ristiques, la prĂ©sente invention procure un ensemble comprenant un cadran de montre et une platine dans lequel le bord pĂ©riphĂ©rique du cadran est maintenu entre la tĂȘte d'un clou ou d'une vis et le rebord pĂ©riphĂ©rique supĂ©rieur de la platine, la tige du clou ou de la vis Ă©tant reçue dans un bossage mĂ©nagĂ© sur la pĂ©riphĂ©rie extĂ©rieure de la platine. Le cadran est ainsi immobilisĂ© en utilisant des moyens Ă  la fois simples, fiables et trĂšs Ă©conomiques. Dans le cas oĂč la platine est rĂ©alisĂ©e en un matĂ©riau plastique, les bossages mĂ©nagĂ©s sur la pĂ©riphĂ©rie extĂ©rieure de la platine peuvent ĂȘtre obtenus trĂšs simplement par moulage ou injection du matĂ©riau plastique.Thanks to these features, the present invention provides an assembly comprising a watch face and a plate in which the peripheral edge of the dial is held between the head of a nail or a screw and the upper peripheral edge of the plate, the stem of the nail or screw being received in a boss formed on the outer periphery of the plate. The dial is thus immobilized using simple, reliable and very economical means. In the case where the plate is made of a plastic material, the bosses formed on the outer periphery of the plate can be obtained very simply by molding or injection of the plastic material.

Selon une premiÚre variante de réalisation de l'invention, le second moyen de fixation comprend une fente prévue sur le rebord périphérique supérieur de la platine, le cadran venant se loger par son bord périphérique dans la fente de la platine.According to a first embodiment of the invention, the second fixing means comprises a slot provided on the upper peripheral edge of the plate, the dial being housed by its peripheral edge in the slot of the plate.

Selon une seconde variante de rĂ©alisation, le second moyen de fixation comprend un second bossage prĂ©vu sur la pĂ©riphĂ©rie extĂ©rieure de la platine, un second clou ou une seconde vis maintenant par sa tĂȘte le bord pĂ©riphĂ©rique du cadran contre le rebord pĂ©riphĂ©rique supĂ©rieur de la platine, la tĂȘte du second clou ou de la seconde vis Ă©tant prolongĂ©e par une tige qui est logĂ©e dans le second bossage de la platine.According to a second variant embodiment, the second fixing means comprises a second projection provided on the outer periphery of the plate, a second nail or a second screw holding the peripheral edge of the dial against the upper peripheral edge of the plate by its head, the head of the second nail or the second screw being extended by a rod which is housed in the second boss of the plate.

Selon une caractĂ©ristique complĂ©mentaire de l'invention, le cadran est disposĂ© entre un rehaut et la platine, le clou ou la vis Ă©tant chassĂ© ou vissĂ© dans le rehaut et venant prendre le rehaut en sandwich entre sa tĂȘte et sa tige qui est logĂ©e dans le bossage de la platine.According to a complementary feature of the invention, the dial is disposed between a flange and the plate, the nail or the screw being driven or screwed into the flange and coming to take the flange sandwiched between its head and its rod which is housed in the boss of the platinum.

Selon encore une autre caractéristique de l'invention, la platine comprend au moins un plot de centrage sur son rebord périphérique supérieur et le cadran comprend sur son bord périphérique une encoche agencée pour coopérer avec le plot de centrage.According to yet another characteristic of the invention, the plate comprises at least one centering pin on its upper peripheral edge and the dial comprises on its peripheral edge a notch arranged to cooperate with the centering pin.

D'autres caractéristiques de la présente invention ressortiront plus clairement de la description détaillée qui suit d'un mode de réalisation du cadran et de la platine selon l'invention, cet exemple étant donné à titre purement illustratif et non limitatif seulement en liaison avec le dessin annexé sur lequel:

  • la figure 1 est une vue en perspective d'un premier mode de rĂ©alisation de l'invention dans lequel le cadran est maintenu en un premier point dans une fente mĂ©nagĂ©e dans la platine et en un second point par une vis;
  • la figure 2 est une vue de dessus de l'ensemble formĂ© par le cadran et la platine illustrĂ© Ă  la figure 1 ;
  • les figures 3A, 3B et 3C sont des vues en coupe selon les lignes A-A, B-B et C-C de la figure 2;
  • la figure 4 est une vue en perspective d'un second mode de rĂ©alisation de l'invention dans lequel le bord pĂ©riphĂ©rique du cadran est maintenu entre la tĂȘte de trois clous et le rebord pĂ©riphĂ©rique supĂ©rieur de la platine, les tiges des clous Ă©tant reçues dans un bossage mĂ©nagĂ© sur la pĂ©riphĂ©rie extĂ©rieure de la platine;
  • la figure 5 est une vue de dessus de l'ensemble formĂ© par le cadran et la platine illustrĂ© Ă  la figure 4;
  • les figures 6A et 6B sont des vues en coupe selon les lignes A-A et B-B de la figure 5;
  • la figure 7 est une vue schĂ©matique en perspective d'un troisiĂšme mode de rĂ©alisation de l'invention dans lequel le cadran est disposĂ© entre un rehaut et le rebord pĂ©riphĂ©rique supĂ©rieur de la platine, les clous Ă©tant chassĂ©s dans le rehaut et venant prendre le rehaut en sandwich entre leur tĂȘtes et leurs tiges qui sont logĂ©es dans des bossages correspondants de la platine, et
  • la figure 8 est une vue schĂ©matique d'une variante de rĂ©alisation de l'invention dans laquelle un pied de fixation qui vient de matiĂšre avec le rehaut et qui se loge dans le bossage correspondant de la platine permet de prendre le cadran en sandwich entre le rehaut et la platine.
Other features of the present invention will emerge more clearly from the detailed description which follows of an embodiment of the dial and the plate according to the invention, this example being given purely by way of illustration and not limiting only in connection with the attached drawing in which:
  • the figure 1 is a perspective view of a first embodiment of the invention in which the dial is held at a first point in a slot in the plate and at a second point by a screw;
  • the figure 2 is a top view of the assembly formed by the dial and the plate shown in FIG. figure 1 ;
  • the FIGS. 3A, 3B and 3C are sectional views along lines AA, BB and CC of the figure 2 ;
  • the figure 4 is a perspective view of a second embodiment of the invention in which the peripheral edge of the dial is held between the head of three nails and the upper peripheral edge of the plate, the rods of the nails being received in a raised boss on the outer periphery of the plate;
  • the figure 5 is a top view of the assembly formed by the dial and the plate shown in FIG. figure 4 ;
  • the Figures 6A and 6B are sectional views along lines AA and BB of the figure 5 ;
  • the figure 7 is a schematic perspective view of a third embodiment of the invention in which the dial is disposed between a flange and the upper peripheral edge of the plate, the nails being chased in the flange and coming to take the flange sandwich between their heads and their stems which are housed in corresponding bosses of the plate, and
  • the figure 8 is a schematic view of an alternative embodiment of the invention in which a fixing foot which comes from material with the flange and which is housed in the corresponding boss of the plate allows to take the dial sandwiched between the flange and the platinum.

La prĂ©sente invention procĂšde de l'idĂ©e gĂ©nĂ©rale inventive qui consiste Ă  utiliser des clous ou des vis pour fixer le cadran d'une montre sur une platine. De tels moyens de fixation sont des moyens Ă  la fois simples et donc Ă©conomiques et qui assurent une immobilisation parfaitement fiable du cadran. Selon un autre avantage de l'invention, le cadran n'a pas besoin d'ĂȘtre modifiĂ© car il est simplement maintenu entre la tĂȘte du clou ou de la vis et le rebord pĂ©riphĂ©rique supĂ©rieur de la platine. La seule disposition particuliĂšre concerne la platine qu'il faut munir sur sa pĂ©riphĂ©rie extĂ©rieure d'autant de bossages que sont prĂ©vus de clous ou de vis. Cela ne pose cependant pas de problĂšme notable, en particulier lorsque la platine est rĂ©alisĂ©e en un matĂ©riau plastique moulĂ© ou injectĂ©. En effet, il suffit dans ce cas de prĂ©voir dans le moule les Ă©videments correspondant aux bossages.The present invention proceeds from the general inventive idea of using nails or screws to fix the dial of a watch on a platen. Such fastening means are means that are both simple and therefore economical and that ensure a perfectly reliable immobilization of the dial. According to another advantage of the invention, the dial does not need to be modified because it is simply held between the head of the nail or the screw and the upper peripheral edge of the plate. The only particular provision relates to the plate that must be provided on its outer periphery as many bosses as are provided with nails or screws. This does not pose a significant problem, however, especially when the plate is made of a molded plastic material or injected. Indeed, it is sufficient in this case to provide in the mold the recesses corresponding to the bosses.

Un premier mode de rĂ©alisation de l'invention est illustrĂ© en liaison avec les figures 1 Ă  3. DĂ©signĂ© dans son ensemble par la rĂ©fĂ©rence numĂ©rique gĂ©nĂ©rale 1, le cadran est obtenu par exemple Ă  partir d'une feuille mĂ©tallique ou d'une feuille plastique. Dans l'exemple de la figure 1, le cadran 1 de mĂȘme que la platine 2 sont de forme gĂ©nĂ©ralement circulaire. On comprendra nĂ©anmoins que l'invention n'est pas limitĂ©e Ă  une telle gĂ©omĂ©trie et que le cadran 1 et la platine 2 peuvent ĂȘtre de toute forme comme par exemple carrĂ©e ou rectangulaire.A first embodiment of the invention is illustrated in connection with the Figures 1 to 3 . Designated as a whole by the general reference numeral 1, the dial is obtained for example from a metal sheet or a plastic sheet. In the example of the figure 1 , the dial 1 and the plate 2 are generally circular. It will be understood, however, that the invention is not limited to such a geometry and that the dial 1 and the plate 2 can be of any shape such as square or rectangular.

La platine 2 se présente généralement sous la forme d'un anneau. Elle est délimitée vers le haut par un rebord périphérique circulaire 4 sur lequel le cadran 1 viendra prendre appui et qui est prolongé vers le bas par une surface périphérique extérieure 6.The plate 2 is generally in the form of a ring. It is delimited upwards by a circular peripheral edge 4 on which the dial 1 will come to bear and which is extended downwards by an outer peripheral surface 6.

Comme on peut le constater à l'examen de la figure 1, la platine 2 est munie, en un endroit de la longueur de son rebord périphérique supérieur 4, d'une fente 8 en arc de cercle dans laquelle est glissé le bord périphérique 10 du cadran 1. La fente 8 procure donc un premier point de maintien selon l'axe vertical du cadran 1 sur la platine 2.As can be seen from the examination of the figure 1 , the plate 2 is provided, at a location along the length of its upper peripheral rim 4, with a slot 8 in an arc in which the edge is slid Device 10 of the dial 1. The slot 8 thus provides a first holding point along the vertical axis of the dial 1 on the plate 2.

ConformĂ©ment Ă  l'invention, le cadran 1 est maintenu sur la platine 2 selon au moins un second point. A cet effet, on utilise une vis 12 qui comprend une tĂȘte 14 prolongĂ©e par une tige 16. Le cadran 1 va ĂȘtre maintenu en un endroit de son bord pĂ©riphĂ©rique 10 entre la tĂȘte 14 de la vis 12 et le rebord pĂ©riphĂ©rique supĂ©rieur 4 de la platine 2. La vis 12 procure donc un second point de maintien du cadran 1 sur la platine 2 Ă  la fois selon une direction verticale perpendiculaire au plan du cadran 1 et selon une direction radiale. Pour le maintien de la vis 12, on prĂ©voit sur la surface pĂ©riphĂ©rique extĂ©rieure 6 de la platine 2 un bossage 18 correspondant dans lequel la tige 16 de la vis 12 est vissĂ©e. Le bossage 18 est formĂ© par un surcroĂźt de matiĂšre prĂ©vu localement sur la surface pĂ©riphĂ©rique extĂ©rieure 6 de la platine 2 et suffisant pour permettre le vissage de la vis 12. Dans le cas oĂč la platine 2 est rĂ©alisĂ©e en un matĂ©riau plastique, le bossage 18 peut ĂȘtre obtenu trĂšs simplement par moulage ou injection du matĂ©riau plastique. Dans l'exemple reprĂ©sentĂ© au dessin, le bossage 18 est surmontĂ© d'un tĂ©ton 20. Ce tĂ©ton 20 contre lequel le cadran 1 vient en appui par son bord pĂ©riphĂ©rique 10 se dresse Ă  la surface du rebord pĂ©riphĂ©rique supĂ©rieur 4 de la platine 2 et est prĂ©vu pour assurer un meilleur guidage de la vis 12. Comme on le voit plus particuliĂšrement sur la figure 2, la vis 12 est prĂ©vue Ă  midi et la fente 8 est disposĂ©e Ă  six heures. La vis 12 et la fente 8 assurent un parfait maintien du cadran 1 sur la platine 2, de sorte qu'aucun autre moyen de maintien n'est nĂ©cessaire. Par exemple Ă  neuf heures (voir figure 3C), le cadran 1 est en appui simple sur la platine 2.According to the invention, the dial 1 is maintained on the plate 2 according to at least one second point. For this purpose, a screw 12 is used which comprises a head 14 extended by a rod 16. The dial 1 will be held at a location of its peripheral edge 10 between the head 14 of the screw 12 and the upper peripheral edge 4 of the 2. The screw 12 therefore provides a second point for holding the dial 1 on the plate 2 at a time in a vertical direction perpendicular to the plane of the dial 1 and in a radial direction. To hold the screw 12, there is provided on the outer peripheral surface 6 of the plate 2 a corresponding boss 18 in which the rod 16 of the screw 12 is screwed. The boss 18 is formed by an additional material provided locally on the outer peripheral surface 6 of the plate 2 and sufficient to allow screwing of the screw 12. In the case where the plate 2 is made of a plastic material, the boss 18 can be obtained very simply by molding or injection of the plastic material. In the example shown in the drawing, the boss 18 is surmounted by a stud 20. This stud 20 against which the dial 1 bears by its peripheral edge 10 stands on the surface of the upper peripheral edge 4 of the plate 2 and is provided to ensure better guidance of the screw 12. As can be seen more particularly on the figure 2 , the screw 12 is scheduled at noon and the slot 8 is arranged at six o'clock. The screw 12 and the slot 8 ensure a perfect hold of the dial 1 on the plate 2, so that no other means of maintenance is necessary. For example, at nine o'clock (see figure 3C ), the dial 1 is in simple support on the plate 2.

Dans ce qui a Ă©tĂ© dĂ©crit ci-dessus, on a prĂ©vu un unique bossage 18 destinĂ© Ă  servir de siĂšge Ă  une vis 12 correspondante. Il va de soi que l'invention n'est pas limitĂ©e Ă  cet exemple de rĂ©alisation et que l'on peut prĂ©voir plusieurs bossages et les vis correspondantes. De mĂȘme, on a dĂ©crit la fixation du cadran 1 au moyen d'une ou de plusieurs vis. On comprendra que ces vis peuvent ĂȘtre remplacĂ©es par d'autres moyens de fixation comme des clous que l'on chassera dans les bossages.In what has been described above, there is provided a single boss 18 intended to seat a corresponding screw 12. It goes without saying that the invention is not limited to this embodiment and that one can provide several bosses and the corresponding screws. Similarly, the fixing of the dial 1 has been described by means of one or more screws. We will understand that these screws can be replaced by other means of attachment as nails that will be hunted in the bosses.

La figure 4 illustre une variante de rĂ©alisation de l'invention dans laquelle le cadran 1 est fixĂ© sur la platine 2 au moyen de deux clous 22 au moins, trois dans l'exemple reprĂ©sentĂ©. Les bossages 18 correspondants sont prĂ©vus sur la surface pĂ©riphĂ©rique extĂ©rieure 6 de la platine 2 par exemple Ă  intervalles de distance rĂ©guliers les uns des autres. Le clou 22 prĂ©vu Ă  midi (figure 6A) a une tĂȘte 24 plus grande que le clou 22 prĂ©vu Ă  quatre heures (figure 6B), la tĂȘte de ces clous Ă©tant prolongĂ©e par une tige 26.The figure 4 illustrates an alternative embodiment of the invention wherein the dial 1 is fixed on the plate 2 by means of two nails 22 at least three in the example shown. The corresponding bosses 18 are provided on the outer peripheral surface 6 of the plate 2 for example at regular distance intervals from each other. The nail 22 scheduled at noon ( Figure 6A ) has a head 24 larger than the nail 22 provided at four o'clock ( Figure 6B ), the head of these nails being extended by a rod 26.

Pour améliorer davantage encore l'orientation du cadran 1, la platine 2 comprend au moins un plot de centrage 28 sur son rebord périphérique supérieur 4 et le cadran 1 comprend sur son bord périphérique 10 une encoche 30 agencée pour coopérer avec le plot de centrage 28. Enfin, pour assurer l'orientation convenable du cadran 1, un élément détrompeur tel qu'un ergot 32 qui est prévu sur le rebord périphérique supérieur 4 de la platine 2 par exemple à six heures vient se loger dans un logement correspondant 34 ménagé sur le bord périphérique 10 du cadran 1.To further improve the orientation of the dial 1, the plate 2 comprises at least one centering pin 28 on its upper peripheral edge 4 and the dial 1 comprises on its peripheral edge 10 a notch 30 arranged to cooperate with the centering pin 28 Finally, to ensure proper orientation of the dial 1, a polarizing element such as a pin 32 which is provided on the upper peripheral edge 4 of the plate 2 for example at six o'clock is housed in a corresponding housing 34 formed on the peripheral edge 10 of the dial 1.

La figure 7 illustre une autre variante de rĂ©alisation dans laquelle le cadran 1 est pris en sandwich entre un rehaut 36 et le rebord pĂ©riphĂ©rique supĂ©rieur 4 de la platine 2. Pour assurer le maintien de l'ensemble formĂ© par le rehaut 36, le cadran 1 et la platine 2, des clous 22 sont chassĂ©s dans le rehaut 36, la tige 26 de ces clous 22 venant se loger dans les bossages 18 correspondants prĂ©vus sur la surface pĂ©riphĂ©rique extĂ©rieure 6 de la platine 2. Le rehaut 36 est ainsi maintenu entre la tĂȘte 24 des clous 22 et le rebord pĂ©riphĂ©rique supĂ©rieur 4 du cadran 1 et vient enserrer le cadran 1. En remplacement des clous, on pourra prĂ©voir des vis que l'on vissera dans le rehaut 36 et dans les bossages 18 de la platine 2.The figure 7 illustrates another embodiment in which the dial 1 is sandwiched between a flange 36 and the upper peripheral edge 4 of the plate 2. To ensure the maintenance of the assembly formed by the flange 36, the dial 1 and the platinum 2, nails 22 are driven into the flange 36, the rod 26 of these nails 22 being housed in the corresponding bosses 18 provided on the outer peripheral surface 6 of the plate 2. The flange 36 is thus held between the head 24 of the nails 22 and the upper peripheral rim 4 of the dial 1 and clasps the dial 1. In lieu of nails, we can provide screws that will screw in the flange 36 and in the bosses 18 of the plate 2.

La figure 8 illustre encore une autre variante de réalisation de l'invention dans laquelle un pied de fixation 38 qui vient de matiÚre avec le rehaut 36 et qui se loge dans le bossage correspondant 18 de la platine 2 permet de prendre le cadran 1 en sandwich entre le rehaut 36 et la platine 2.The figure 8 illustrates yet another alternative embodiment of the invention in which a fastening foot 38 which comes from material with the flange 36 and which is housed in the corresponding boss 18 of the plate 2 can take the dial 1 sandwiched between the flange 36 and the plate 2.

Claims (6)

  1. Assembly comprising a watch dial (1) and a bottom plate (2), the bottom plate (2) being delimited by an upper peripheral rim (4) which is extended downwards by an external peripheral surface (6), the watch dial (1) being secured to the upper peripheral rim (4) of the bottom plate (2) via at least first and second securing means, said assembly being characterized in that the first securing means comprises a boss (18) provided on the external peripheral surface (6) of the bottom plate (2), the dial (1) having a peripheral edge (10) via which the dial is held between the head (14; 24) of a nail or a screw (12; 22) and the upper peripheral rim (4) of the bottom plate (2), the head (14; 24) of the nail or screw (12; 22) being extended by a shank (16; 26) which is housed in the boss (18) of the bottom plate (2).
  2. Assembly according to claim 1, characterized in that the second securing means includes a slot (8) provided on the upper peripheral rim (4) of the bottom plate (2), the peripheral edge (10) of the dial (1) being housed in the slot (8) of the bottom plate (2).
  3. Assembly according to claim 1, characterized in that the second securing means includes a second boss (18) provided on the external peripheral surface (6) of the bottom plate (2), a second nail or a second screw (22; 12) holding, via the head (24; 14) thereof, the peripheral edge (10) of the dial (1) against the upper peripheral rim (4) of the bottom plate (2), the head (24; 14) of the second nail or of the second screw (22; 12) being extended by a shank (26, 16) which is housed in the second boss (18) of the bottom plate (2).
  4. Assembly according to any of claims 1 to 3, characterized in that the dial (1) is disposed between a flange (36) and the bottom plate (2), the nail or the screw (22; 12) being driven or screwed into the flange (36) and sandwiching the flange (36) between the head (24; 14) and the shank (26; 16) thereof which is housed in the boss (18) of the bottom plate (2).
  5. Assembly according to any of claims 1 to 3, characterized in that the dial (1) is disposed between a flange (36) and the bottom plate (2), at least one securing foot (38), which is integral with the flange (36), being housed in the corresponding boss (18) of the bottom plate (2).
  6. Assembly according to any of claims 1 to 5, characterized in that the bottom plate (2) includes at least one centring stud (28) on the upper peripheral rim (4) thereof and the peripheral edge (10) of the dial (1) includes a notch (30) arranged to cooperate with the centring stud (28).
EP12176187.8A 2012-07-12 2012-07-12 Watch dial attached to a mainplate Active EP2685326B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP12176187.8A EP2685326B1 (en) 2012-07-12 2012-07-12 Watch dial attached to a mainplate
US13/937,767 US8873346B2 (en) 2012-07-12 2013-07-09 Watch dial secured to a bottom plate
JP2013145172A JP5667250B2 (en) 2012-07-12 2013-07-11 Watch face fixed to the bottom plate
KR1020130082483A KR101477914B1 (en) 2012-07-12 2013-07-12 Watch dial secured to a bottom plate
CN201310292676.8A CN103543632B (en) 2012-07-12 2013-07-12 Watch dial secured to a bottom plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12176187.8A EP2685326B1 (en) 2012-07-12 2012-07-12 Watch dial attached to a mainplate

Publications (2)

Publication Number Publication Date
EP2685326A1 EP2685326A1 (en) 2014-01-15
EP2685326B1 true EP2685326B1 (en) 2014-12-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12176187.8A Active EP2685326B1 (en) 2012-07-12 2012-07-12 Watch dial attached to a mainplate

Country Status (5)

Country Link
US (1) US8873346B2 (en)
EP (1) EP2685326B1 (en)
JP (1) JP5667250B2 (en)
KR (1) KR101477914B1 (en)
CN (1) CN103543632B (en)

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US10928778B2 (en) * 2014-03-25 2021-02-23 Eta Sa Manufacture Horlogere Suisse Timepiece provided with a dial and associated fastening method
JP6775761B2 (en) * 2016-06-20 2020-10-28 ă‚«ă‚·ă‚Șèšˆçź—æ©Ÿæ ȘćŒäŒšç€Ÿ Modules and clocks
JP6355282B1 (en) * 2017-03-13 2018-07-11 ă‚»ă‚€ă‚łăƒŒă‚€ăƒłă‚čăƒ„ăƒ«æ ȘćŒäŒšç€Ÿ Fixed structure for mobile device parts
JP6504584B1 (en) * 2018-03-20 2019-04-24 ă‚»ă‚€ă‚łăƒŒă‚€ăƒłă‚čăƒ„ăƒ«æ ȘćŒäŒšç€Ÿ clock
US12078966B2 (en) * 2019-07-25 2024-09-03 Casio Computer Co., Ltd. Dial, module, electronic device and timepiece
EP4109181A1 (en) * 2021-06-21 2022-12-28 ETA SA Manufacture HorlogĂšre Suisse Dial, watch comprising such a dial and method for installing such a dial in a watch

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JPS5998382U (en) * 1982-12-22 1984-07-03 ă‚»ă‚€ă‚łăƒŒă‚šăƒ—ă‚œăƒłæ ȘćŒäŒšç€Ÿ Fixed structure of the dial on the mobile watch side
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Also Published As

Publication number Publication date
CN103543632B (en) 2017-05-10
US8873346B2 (en) 2014-10-28
CN103543632A (en) 2014-01-29
JP5667250B2 (en) 2015-02-12
EP2685326A1 (en) 2014-01-15
KR20140009078A (en) 2014-01-22
JP2014021110A (en) 2014-02-03
KR101477914B1 (en) 2014-12-30
US20140016446A1 (en) 2014-01-16

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