EP2743783B1 - Zusammenbau eines Zifferblatts und eines Rohlings einer Uhr - Google Patents

Zusammenbau eines Zifferblatts und eines Rohlings einer Uhr Download PDF

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Publication number
EP2743783B1
EP2743783B1 EP12196614.7A EP12196614A EP2743783B1 EP 2743783 B1 EP2743783 B1 EP 2743783B1 EP 12196614 A EP12196614 A EP 12196614A EP 2743783 B1 EP2743783 B1 EP 2743783B1
Authority
EP
European Patent Office
Prior art keywords
dial
skirt
timepiece
elastic element
height
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
EP12196614.7A
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English (en)
French (fr)
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EP2743783A1 (de
Inventor
Jean-Baptiste Robin
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.)
Rolex SA
Original Assignee
Rolex 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 Rolex SA filed Critical Rolex SA
Priority to EP12196614.7A priority Critical patent/EP2743783B1/de
Priority to JP2013255534A priority patent/JP6342149B2/ja
Priority to US14/103,312 priority patent/US9348314B2/en
Priority to CN201310681237.6A priority patent/CN103869678B/zh
Publication of EP2743783A1 publication Critical patent/EP2743783A1/de
Application granted granted Critical
Publication of EP2743783B1 publication Critical patent/EP2743783B1/de
Active legal-status Critical Current
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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
    • G04B19/06—Dials
    • 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 dial for a timepiece, a timepiece assembly integrating such a dial cooperating with a blank of a timepiece. It also relates to a timepiece as such, incorporating such an arrangement, such as a wristwatch.
  • a first prior art solution for fixing a watch dial to a frame requires pins projecting below the lower surface of the dial. These pins are housed in cutouts arranged on the upper surface of the frame. Screws arranged within the frame are used to bear against the pins and block them, to prevent any dissociation of the dial and the frame.
  • This fixing has a first drawback of not being user-friendly and reliable since it is necessary to handle several small screws. It has a second drawback of being cumbersome and therefore cannot be implemented on watches equipped with multiple functions, which require the occupation of a large part of the available surface, as in the case of a calendar watch, except in greatly increasing the overall diameter of the watch to the detriment of the aesthetic aspect. Finally, another drawback of this solution is that it risks generating a situation of hyperstatism when perfect precision of the elements participating in the fixing is not achieved.
  • the document CH353310 discloses a solution different from the previous one in which the pins are replaced by elastic projections which engage in cutouts of a watch plate. This solution avoids the use of the screws of the previous solution, but retains the other disadvantages. It is also based on elements with complex geometry.
  • the document CH282448 describes another approach to attaching a dial that has a dial plate and an annular skirt. The latter comes to cover a side surface of the frame, which allows it to secure the dial to the frame by screws or pins. This solution remains not very user-friendly since it requires screwing operations and external fastening elements.
  • a dial comprises a dial plate and elastic tabs on its periphery, which extend downwards.
  • These elastic tabs cooperate with a fixing ring linked to the frame. They are elastically movable around their horizontal connecting axis with the dial plate, arranged towards their upper end.
  • these lugs deviate elastically towards the outside of the dial around their connecting axis to accommodate a lower part under the fixing ring.
  • the connecting axis of these lugs being oriented in a direction parallel to the dial plate, the active length of the lugs is limited to the total height of the dial. This geometry is poorly suited to a large number of operations of assembly/disassembly and does not make it possible to guarantee the lasting reliability of the binding.
  • the general object of the invention is to propose a solution for fixing a timepiece dial to a timepiece blank, such as a watch frame, for example, which makes it possible to achieve an optimal compromise between its simplicity and user-friendliness of handling, its small size, its reliability, and its aesthetic appearance.
  • the invention is based on a dial for a timepiece, provided with a skirt which comprises at least one elastic element which extends partially over the height of the skirt and is capable of fulfilling the function of axial support of the dial on a blank timepiece.
  • a dial 1 comprises a disc-shaped plate 2 and a skirt 3 which extends in a direction substantially perpendicular to the plate on the circumference of the latter.
  • This dial 1 is intended to cooperate with a blank 20 of a timepiece, such as a watch frame, which also generally has the shape of a disk.
  • the figure 1 represents the dial 1 vis-à-vis with a blank 20, not attached to the latter.
  • the skirt 3 therefore extends vertically downwards from the plate 2 of the dial, and the fixing of the dial 1 on the blank 20 is done by a vertical approximation of the dial to the above the blank.
  • This vertical direction of attachment of the two components will also be called axial direction hereafter, to refer to the axis of the discs forming the two components of the assembly.
  • tangential direction will refer to any direction tangent to a circle centered on an axis along the axial direction, in particular the axis of the discs forming the two components of the assembly.
  • tangential direction will refer to any direction tangent to a circle centered on an axis along the axial direction, in particular the axis of the discs forming the two components of the assembly.
  • the dial 1 comprises on its skirt 3 elastic elements 10, in the form of elastic blades oriented tangentially relative to an axis in the axial direction, formed by simple through slots 11 made in the skirt 3.
  • These elastic elements 10 have the function of carrying out the axial fixing of the dial on a blank, as will be detailed below.
  • the skirt comprises three elastic blades evenly distributed over its circular contour, ie every 120 degrees.
  • the skirt also includes cutouts 5 extending over a significant part of its height, one function of which is to provide angular indexing of the dial on the blank.
  • the blank 20 comprises complementary elements capable of cooperating with the elastic elements 10 and the cutouts 5 of the skirt 3 of the dial.
  • the blank 20 is in the form of a disc with a diameter slightly smaller than that of the dial, so that the skirt 3 of the dial comes to cover its outer contour by positioning the plate 2 of the dial on the blank 20.
  • the latter also comprises, at the level of the lateral surface forming its outer contour, first protrusions 30, which protrude from this surface and are intended to cooperate with the elastic elements 10 of the dial, and possibly second protuberances 25, which protrude in the same way. and are provided to cooperate with the cutouts 5 of the skirt.
  • These protuberances are arranged at a height and according to an angular distribution defined according to the geometry of the skirt of the dial.
  • the figure 5 represents the dial 1 in the approach phase above the blank 20.
  • the lower end 12 of an elastic element 10 of the skirt 3 comes into contact with the upper surface of a protuberance 30 of the outline of the blank 20.
  • a surface in the form of an entry cone or chamfer 13 is formed at the level of the inner surface of the skirt, that is to say oriented towards the blank 20, towards this lower end of the blade.
  • This surface in the form of an entry cone or chamfer 13 comes into contact with a rounded or chamfered contour of the exterior angle of the upper surface 33 of the protuberance 30 of the blank 20.
  • the blade When the dial 1 continues its descent, the blade is pushed aside by the protuberance 30, deforming elastically. This movement is continued until the lower surface 7 of the plate 2 comes to rest on the upper surface 27 of the blank 20, or alternatively until any stop arranged between the two components to stop this movement in the direction axial.
  • the upper surface 27 of the blank 20 comprises a cutout 28 to allow the positioning of the lower and inner edge 8 of the skirt 3 at the level of the slot 11 which delimits the elastic element 10, in order to not to block the descent of the plate 2 until it rests on the blank 20 at the level of the protuberance 30.
  • dial 1 is held in its axial direction by the elastic return force exerted by the elastic element 10 of the skirt 3 on the protrusion 30 of the blank 20.
  • the dial 1 is therefore held by friction on the blank 20 In other words, dial 1 is clipped onto blank 20.
  • a preliminary phase of angular indexing of the dial is preferably implemented to ensure the correct relative positioning of the two components, in which the elastic elements 10 of the skirt come to cooperate with the corresponding elements of the blank, that is to say the protuberances 30 in the example illustrated.
  • the dial is turned relative to the blank until at least one of the side walls of a cutout 5 comes into abutment against a corresponding protuberance 25. That Angular indexing can alternatively be obtained by any other means and the second protuberances 25 are chosen here by way of example.
  • the figure 7 illustrates a variant embodiment of an elastic element 10 of the skirt 3 of the dial.
  • an additional cutout or slot 14 is formed in the skirt 3, in a substantially vertical direction and perpendicular to the previously described slot 11, to form a blade which is no longer embedded (or simply linked) with the skirt that by a single end 16, whereas in the previous description it was embedded on its two ends 16.
  • the figure 8 represents another embodiment variant, in which the axial holding of the dial is reinforced by the fact that the elastic element engages the blank.
  • the protrusion 30 is modified to present a slightly inclined side, for example of the order of 5 degrees, in which is arranged a recess 33 in the upper part, under which is housed by elastic effect the upper end 15 of the elastic element 10 whose geometry is complementary to that of the recess 33, during the phase of fixing the dial on the blank.
  • the axial holding is then ensured by the combination of the elastic clipping effect of the elastic element and the hook effect, of abutment of the upper surface of the elastic element against the lower face of the recess 33.
  • the element elastic is thus hooked to the protrusion 30.
  • the number of elastic elements of the skirt of the dial has been chosen to be three in the embodiment described above. However, any other number could be chosen, a single one could even suffice to ensure axial retention.
  • an elastic element cooperates with a complementary element of the blank, such as a protuberance.
  • the elastic element of the skirt of the dial is centered with respect to this complementary element of the blank.
  • an elastic element is obtained by at least one slit made in the skirt, as more particularly visible on the figure 4 and 7 .
  • a slot 11 can extend tangentially along an angular sector varying between 10 and 30 degrees, in the case of a circular dial.
  • a slot extending over an angular sector of 20 degrees makes it possible to form a blade of active length L of the order of 5 mm.
  • This active length L is preferably between 3 and 10 mm.
  • this slot is positioned to form an elastic blade of height H less than or equal to 2 mm, or less than or equal to 1 mm, or less than or equal to 0.7 mm, for example around 0.5 mm , or less than or equal to 0.5 mm, or less than or equal to 0.3 mm.
  • the skirt may be made of metal, in particular an elastic metal such as a cuprous or precious metal, with a thickness e of between 0.2 and 0.4 mm.
  • the elastic element has been represented in the form of an elastic blade extending tangentially. Naturally, it is possible to use an elastic blade extending in any direction, preferably with a non-zero horizontal component, or even with a rather small angle with respect to the horizontal direction. More generally, the elastic element of the skirt is advantageously movable around at least one end 16, fixed on the skirt and not parallel to the dial plate, that is to say not horizontal. This end 16 may in particular be substantially perpendicular to the dial plate.
  • this elastic element is formed by means of a strip made directly in the skirt using at least one slot.
  • This solution has the advantage of simplicity, and forms a continuous assembly, the blade being linked to the skirt by at least one end 16 belonging to the skirt.
  • this slot is substantially parallel to the dial plate.
  • a blade separate from the skirt could be attached and fixed to the surface of the skirt by any means.
  • this elastic element could take another form, and no longer appear as a blade.
  • the elastic element does not extend over the entire height h of the skirt, but over only part of this height h, which allows it to achieve elastic properties that are well suited to the desired attachment.
  • This height H of the elastic element or more generally the width if this element is not horizontal, can preferably represent less than two thirds of the total height h of the skirt, or even less than half of this height, or even the month of the third of the total height h of the skirt.
  • the dial can also include an additional surface intended to come into contact with a surface of the case during assembly of the watch, to finally present in the final position a support on the blank and on another component, such as the middle of the case. the timepiece.
  • the dial is advantageously made of copper material, such as brass for example.
  • it can be made of precious material, such as gold or platinum.
  • any other material having elastic and/or mechanical properties suitable for implementing the concept described above can be used.
  • the angular indexing of these components of the watch assembly can be carried out by means of a related means, such as a pin for example, or by any other means.
  • the blank can likewise have another geometry.
  • a first protrusion intended to cooperate with an elastic element of a skirt of the dial can form a projection or extra thickness of the outline of between 0.01 and 0.2 mm. This value is advantageously chosen to correspond to the arrow of the elastic element of the dial.
  • Each first and/or second protuberance 30, 25 can also form an upper bearing surface 27, receiving a lateral part of the lower surface 7 of the dial, as can be seen in section BB of the figure 9 .
  • the skirt of the dial comprises a lower surface 12 which bears against a surface of the blank.
  • the embodiment described presented the most common shape of a circular watch, but any shape to adapt to the aesthetics of a timepiece can be suitable, such as a rectangular shape, or an elliptical.
  • the timepiece assembly described above is suitable for use in various timepieces, such as a watch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)

Claims (14)

  1. Zifferblatt (1) für eine Uhr, welches eine Platte (2), die für eine zu der Uhr im Wesentlichen parallele Positionierung bestimmt ist, sowie einen Mantel (3), der sich in einer zu der Platte (2) des Zifferblattes im Wesentlichen senkrechten Richtung erstreckt, umfasst, dadurch gekennzeichnet, dass sich der Mantel (3) auf dem Umfang der Platte (2) des Zifferblattes erstreckt und wenigstens ein elastisches Element (10) umfasst, welches sich teilweise auf der Höhe h des Mantels erstreckt, um ein axiales Halten des Zifferblattes (1) auf einem Rohwerk (20) der Uhr zu bewirken, wobei sich das wenigstens eine elastische Element (10) nicht über die gesamte Höhe h des Mantels erstreckt und seine Höhe H oder, allgemeiner, seine Breite, falls dieses Element nicht zu der Platte (2) des Zifferblattes parallel ist, weniger als zwei Drittel der Gesamthöhe h des Mantels oder sogar weniger als die Hälfte dieser Höhe oder sogar weniger als ein Drittel dieser Höhe beträgt und das wenigstens eine elastische Element (10) ein Ende (16) umfasst, das auf dem Mantel (3) fest angeordnet ist und in einer zu der Platte (2) des Zifferblattes nicht parallelen Richtung ausgerichtet ist, in einer zu der Platte des Zifferblattes im Wesentlichen senkrechten Richtung, wobei dieses wenigstens eine elastische Element (10) mit dem Mantel durch dieses Ende (16) verbunden ist und um das auf dem Mantel fest angeordnete Ende (16) herum beweglich ist.
  2. Zifferblatt für eine Uhr nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das elastische Element (10) eine Lamelle ist.
  3. Zifferblatt für eine Uhr nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Lamelle an einem oder zwei Enden (16) eingespannt ist.
  4. Zifferblatt für eine Uhr nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, dass die Lamelle eine Höhe H aufweist, die kleiner oder gleich 2 mm oder 1 mm oder 0,7 mm oder 0,5 mm oder 0,3 mm ist, und/oder sich auf einer Länge L zwischen 3 und 10 mm erstreckt.
  5. Zifferblatt für eine Uhr nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es wenigstens zwei elastische Elemente (10) umfasst, die insbesondere gleichmäßig auf dem Umfang des Mantels verteilt sind, um seine Zentrierung bezüglich der Uhr zu unterstützen.
  6. Zifferblatt für eine Uhr nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es wenigstens ein Element umfasst, das einen Winkelanschlag bildet, wie etwa eine seitliche Wand.
  7. Zifferblatt für eine Uhr nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Mantel (3) aus Metall, wie etwa einem kupferhaltigen Metall oder Edelmetall, mit einer Dicke e zwischen 0,2 und 0,4 mm besteht.
  8. Uhrenbaugruppe, dadurch gekennzeichnet, dass sie ein Rohwerk (20) umfasst, das mit einem Zifferblatt (1) nach einem der vorhergehenden Ansprüche zusammenwirkt.
  9. Uhrenbaugruppe nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Rohwerk (20) wenigstens einen Vorsprung (30) umfasst, welcher an seiner Außenkontur vorsteht, um mit einem elastischen Element (10) zusammenzuwirken, indem es dessen elastische Verformung bei der Verbindung der zwei Komponenten hervorruft.
  10. Uhrenbaugruppe nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das elastische Element (10) des Mantels (3) des Zifferblattes einen Haken umfasst, der geeignet ist, mit einer komplementären Flanke eines Vorsprungs (30) des Rohwerks (20) zusammenzuwirken, insbesondere daran zur Anlage zu kommen.
  11. Uhrenbaugruppe nach einem der Ansprüche 9 und 10, dadurch gekennzeichnet, dass der Vorsprung (30) des Rohwerks (20) eine Verdickung von 0,01 bis 0,2 mm bildet, welche im Wesentlichen der Durchbiegung des elastischen Elements (10) des Zifferblattes (1) entspricht, mit dem er zusammenwirkt.
  12. Uhrenbaugruppe nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass sie für eine Abstützung der Unterseite (7; 12) der Platte (2) des Zifferblattes (1) oder des Mantels (3) des Zifferblattes auf der Oberseite (27) des Rohwerks (20) und/oder eines Vorsprungs (25; 30) der Kontur des Rohwerks (20) geeignet ist.
  13. Uhrenbaugruppe nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass das Rohwerk (20) ein Element umfasst, insbesondere wenigstens einen weiteren Vorsprung (25), um einen Anschlag, eine Winkelindexierung und ein Winkelhalteelement des Zifferblattes (1) auf dem Rohwerk (20) zu bilden.
  14. Armbanduhr, dadurch gekennzeichnet, dass sie eine Uhrenbaugruppe nach einem der Ansprüche 8 bis 13 umfasst.
EP12196614.7A 2012-12-12 2012-12-12 Zusammenbau eines Zifferblatts und eines Rohlings einer Uhr Active EP2743783B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12196614.7A EP2743783B1 (de) 2012-12-12 2012-12-12 Zusammenbau eines Zifferblatts und eines Rohlings einer Uhr
JP2013255534A JP6342149B2 (ja) 2012-12-12 2013-12-11 文字盤と時計ムーブメントとの間の組立体
US14/103,312 US9348314B2 (en) 2012-12-12 2013-12-11 Assembly between a dial and a timepiece movement
CN201310681237.6A CN103869678B (zh) 2012-12-12 2013-12-12 表盘和计时器机芯之间的组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12196614.7A EP2743783B1 (de) 2012-12-12 2012-12-12 Zusammenbau eines Zifferblatts und eines Rohlings einer Uhr

Publications (2)

Publication Number Publication Date
EP2743783A1 EP2743783A1 (de) 2014-06-18
EP2743783B1 true EP2743783B1 (de) 2022-03-30

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EP12196614.7A Active EP2743783B1 (de) 2012-12-12 2012-12-12 Zusammenbau eines Zifferblatts und eines Rohlings einer Uhr

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US (1) US9348314B2 (de)
EP (1) EP2743783B1 (de)
JP (1) JP6342149B2 (de)
CN (1) CN103869678B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU201713910S (en) * 2017-01-11 2017-07-19 Rado Uhren Ag Rado Watch Co Ltd Montres Rado Sa Wrist watch
JP1610164S (de) * 2017-02-22 2018-07-30
USD812509S1 (en) * 2017-03-17 2018-03-13 Citizen Watch Co., Ltd. Watch dial
USD891284S1 (en) * 2018-03-02 2020-07-28 Tudor Watch U.S.A., Llc Watch movement
USD894778S1 (en) * 2018-03-02 2020-09-01 Tudor Watch U.S.A., Llc Watch movement
USD894777S1 (en) * 2018-03-02 2020-09-01 Tudor Watch U.S.A., Llc Watch movement
USD894779S1 (en) * 2018-03-06 2020-09-01 Rolex Watch U.S.A., Inc. Watch movement
EP3709101A1 (de) * 2019-03-14 2020-09-16 Omega SA Verbundkomponente eines uhrwerks oder schmuckstücks mit keramikstruktur und einsätzen
JP2023503967A (ja) * 2019-11-26 2023-02-01 ロレックス・ソシエテ・アノニム 時計用文字盤用の連結リング、時計用文字盤プレート及び時計用文字盤の組立方法
JP2023016727A (ja) 2021-07-22 2023-02-02 ロレックス・ソシエテ・アノニム ２つの時計部品を機械的に結合するリング

Citations (2)

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Publication number Priority date Publication date Assignee Title
US2039672A (en) * 1935-11-20 1936-05-05 New Haven Clock Co Watch construction
FR940329A (fr) * 1946-03-08 1948-12-09 Louis Brandt & Frere Sa Mouvement de montre

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US1338745A (en) * 1918-06-21 1920-05-04 Robert H Ingersoll & Bros Dial and dial-fastener
FR1003696A (fr) * 1947-02-14 1952-03-20 Cadrans pour montres
CH282448A (fr) 1950-01-14 1952-04-30 Rolex Montres Pièce d'horlogerie.
CH316203A (fr) * 1953-12-17 1956-09-30 Gisiger Armin Pièce d'horlogerie
CH353310A (fr) 1959-07-17 1961-03-31 Tissot Horlogerie Dispositif d'assemblage et de fixation de deux éléments d'un appareil de précision
FR1260354A (fr) * 1959-08-04 1961-05-05 Perfectionnement aux cadrans de montre, procédé de fabrication d'une forme de réalisation desdits cadrans perfectionnés et partie d'étampe destinée à être montée sur une presse en vue de la mise en oeuvre dudit procédé
US3283496A (en) * 1964-08-19 1966-11-08 Harold L Hobenthaner Wrist watch with adjustable dial
DE2028523A1 (de) 1970-01-29 1971-08-12 Ruhla Uhren Veb K Zifferblattbefestigung mit Werkfixie rung fur Uhren
JPS537098Y2 (de) * 1973-03-19 1978-02-22
JPS5759972Y2 (de) * 1977-09-19 1982-12-21
GB2079497B (en) 1980-06-02 1983-11-16 Citizen Watch Co Ltd Mounting structure for a dial
JP5462038B2 (ja) * 2010-03-17 2014-04-02 セイコーインスツル株式会社 時計

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2039672A (en) * 1935-11-20 1936-05-05 New Haven Clock Co Watch construction
FR940329A (fr) * 1946-03-08 1948-12-09 Louis Brandt & Frere Sa Mouvement de montre

Also Published As

Publication number Publication date
EP2743783A1 (de) 2014-06-18
JP2014119452A (ja) 2014-06-30
US9348314B2 (en) 2016-05-24
CN103869678B (zh) 2018-04-03
JP6342149B2 (ja) 2018-06-13
US20140160905A1 (en) 2014-06-12
CN103869678A (zh) 2014-06-18

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