EP3729204A1 - Timepiece comprising a dial attachment device - Google Patents
Timepiece comprising a dial attachment deviceInfo
- Publication number
- EP3729204A1 EP3729204A1 EP18815697.0A EP18815697A EP3729204A1 EP 3729204 A1 EP3729204 A1 EP 3729204A1 EP 18815697 A EP18815697 A EP 18815697A EP 3729204 A1 EP3729204 A1 EP 3729204A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dial
- support
- central opening
- timepiece according
- holding tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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 the field of watchmaking and more particularly to a timepiece comprising a device for fixing a dial of conventional type or type comprising a solar cell.
- a dial of a timepiece comprises on the side of the lower face, that is to say on the movement side, metal feet arranged to be driven partly into machined holes in the movement plate. .
- These metal feet serve in particular to keep in place the dial with respect to the movement of the watch during the assembly of the latter.
- Fixing the dial in the movement plate according to the aforementioned method has the disadvantage of involving relatively complex machining operations, the dial to be drilled several times accurately before mounting the metal feet.
- the use of such dials in skeleton type watches is also unattractive. Summary of the invention
- an objective of the invention is to propose a timepiece comprising a device for fixing the dial which is simple to implement and which ensures a good maintenance of the dial. while ensuring a mechanical strength especially in case of shocks along the axis of the needles.
- a timepiece comprising a motor module, a dial having a central opening, a clock of the hours passing through the central opening of the dial and rotated by the engine module and a device for fixing the dial.
- the fixing device comprises I:
- a holding tube arranged around the hour barrel and mechanically / firmly connected to the engine module
- a retaining member arranged between the holding tube and the dial and / or a dial support on which is fixed the dial.
- the retaining member is arranged / arranged / located between the holding tube, and the dial and / or a dial support being in abutment against a portion of the dial adjacent to the central opening of the dial. and / or against the dial support.
- the retaining member is configured to be in abutment or to exert an axial stress distributed either on an annular zone of the dial which is adjacent and concentric with the central opening of the dial, or on an annular zone of the dial support .
- the part of the dial adjacent to the central opening of the dial defines an annular zone, preferably recessed with respect to the surface of the dial, so that a surface of the upper part of the dial keeping it at the same level as the dial.
- the holding tube has a first cylindrical portion having a first diameter and a second cylindrical portion having a second diameter smaller than the first diameter.
- the retaining member is a washer arranged on the circumference of the second cylindrical portion and bearing against the annular zone of the dial or against the dial support so as to exert an axial force on the dial or the dial support.
- the retaining member is an elastic ring, preferably of circlip type, arranged inside a groove formed on at least a portion of the outer circumference of the holding tube so that the elastic ring bears against the annular zone of the dial or against the dial support.
- the holding tube comprises, on the one hand, a first tube mechanically connected to the engine module and having a threaded portion on its inner circumference, and on the other hand, a second tube in the form of a screw screwed into the threaded part of the first tube.
- the screw has a radial extension to form a circular bearing surface.
- the retaining member is in the form of a seal, preferably O-ring type, arranged against the circular bearing surface of the screw and the annular zone of the dial or the support the dial support so as to exert an axial force on the dial or the dial support.
- the screw is embedded in the central opening of the dial.
- the screw comprises a portion raised relative to the dial and which extends radially to cover the central opening of the dial.
- the timepiece further comprises a movement support and a circuit support arranged between the dial support and the motor module.
- the stack of each support forms a rigid base preventing the deformation of the dial in the event of axial impact.
- each support has a central opening to form a housing within which is adjusted, at least in part, the holding tube.
- the dial comprises or consists of at least one solar cell.
- FIG. 1 shows a partial sectional view of the timepiece illustrating the device for fixing the dial according to a first embodiment of the invention
- FIG. 2 shows a partial sectional view of the timepiece illustrating the fastening device of the dial according to a second embodiment of the invention
- FIG. 3 represents a partial sectional view of the timepiece illustrating the device for fixing the dial according to a third embodiment of the invention.
- FIG. 4 shows a partial sectional view of the timepiece illustrating the device for fixing the dial according to a fourth embodiment of the invention
- the device for fixing a dial according to the invention described hereinafter can be set in used in mechanical or quartz watches comprising a conventional / conventional type dial, ie a dial comprising, for example, indexes distributed at regular intervals around the circumference of the dial, numbers to represent the hours, by example in the form of wall-mounted sconces and, depending on the size, one or more windows to indicate, for example, the date or other information.
- the device for fixing a dial according to the invention can also be implemented in watches comprising a dial of non-conventional type.
- the fixing device according to the invention is for example particularly well suited for fixing a dial comprising or consisting of a solar cell for supplying for example a battery and / or an electronic module of a so-called smart watch.
- the device for fastening the dial 12 comprises a holding tube 15 arranged around the hour-barrel 14b and is mechanically connected to the motor module 10, for example by picking, and this by way of
- this fixing device also comprises a retaining member 20a to 20c.
- This retainer 20a to 20c is preferably an insert.
- Such a retaining member 20a to 20c is a piece which is preferably flexible and / or deformable provided to be arranged between a second cylindrical portion 15b of a holding tube 15, and the dial 12 or the dial support 17 of the shows. Indeed, under the action of this second portion of the cylindrical 15b, this retaining member 20a to 20c is able to bear against a portion of the dial adjacent to a central opening 13 of this dial 12 and / or against the dial support 17.
- the timepiece comprises in particular a motor module 10, the dial 12 provided with a central opening 13, a floor 14a and a gun hours 14b through the central opening 13 of the dial 12 and rotated by the engine module 10.
- the dial 12 is fixed on a dial support 17 for example by means of a double-sided adhesive 30a.
- the shape of the dial support 17 is substantially identical to the shape of the dial 12.
- the dial support 17 is mounted on a motion support 26, which is fixed on a circuit support, preferably a printed circuit support 28, by example by means of a double-sided adhesive 30b.
- the stack of the various supports 17, 26, 28 form a rigid base on which the dial 12 rests, which has the advantage of avoiding a deformation of the dial 12 in the event of an axial impact.
- This rigid base is particularly well suited for a dial 12 formed in particular of a solar cell to prevent possible rupture of the glass substrate of the cell in case of significant axial impact.
- the timepiece comprises the fastening device of the dial 12 comprising the retaining member 20a, the holding tube 15 arranged around the hour barrel 14b and mechanically connected to the engine module 10 as well.
- the holding tube 15 has a first cylindrical portion 15a having a first diameter D1 and a second cylindrical portion 15b having a second diameter D2 less than the first diameter D1.
- the first cylindrical portion 15a is housed in a tubular portion formed by the stacking of the central openings of the dial support 17, the movement support 26 and the support of the printed circuit 28.
- This retaining member 20a comprises a retaining washer 20a and is arranged on the circumference of the second cylindrical portion 15b.
- This retaining washer 20a extends radially so that its periphery is pressed against the dial support 17 to exert an axial force on the dial support 17.
- One end of the first cylindrical portion 15a has the extension radial 18, for example of annular shape, which is fixed or mechanically connected to a bridge 10a of the motor module 10.
- the retaining member 20b comprises an elastic ring 20b.
- This elastic ring 20b is arranged inside a groove 22 made on the outer circumference of the holding tube 15 so that the elastic ring 20b bears against the dial support 17.
- the elastic ring can for example be circlip type to facilitate removal of the fastener.
- the holding tube 15 is housed in the tubular portion formed by the stack of the various supports 17, 26, 28 in order to produce this rigid base adapted for a dial 12 comprising or consisting of a solar cell.
- One end of the holding tube 15 has the radial extension 18, for example of annular shape, which is fixed to a bridge 10a of the motor module 10.
- the holding tube 15 comprises a first tube 16a comprising, on the one hand, a radial extension fixed to a bridge 10a of the engine module 10, and on the other hand, a threaded part on its inner circumference.
- the first tube 16a is housed in the tubular portion formed by the stack of different supports 17, 26, 28 forming this rigid base.
- the holding tube 15 further comprises a second tube 16b in the form of a screw screwed into the threaded portion of the first tube 16a.
- the screw 16b has at one end a radial extension 24 to form a circular bearing surface 24a.
- the retaining member 20c comprises a seal 20c, for example of the O-ring type.
- This seal 20c is arranged against the circular bearing surface 24a of the screw 16b and the dial support 17 so as to exert an axial force on the dial support 17.
- the screw 16b is embedded in the central opening 13 of the dial 12.
- the diameter of the radial extension 24 is preferably substantially identical to the diameter of the central opening 13 of the dial in order to have an advantageous aesthetic appearance.
- the retaining member 20c of the fixing device comprises a seal 20c which is arranged against the circular bearing surface 24a of the screw 16b and the dial support 17. Under these conditions the radial extension 24 forming a surface circular support 24a defined at the end of said screw 16b is then able to directly exert an axial force on the dial support 17 by means of the retaining member 20c.
- the device for fastening the dial comprises a holding tube of similar construction to the third embodiment, with the difference that the screw 16b comprises an elevated portion 32 by relative to the dial 12 which extends radially to cover the central opening 13 of the dial 12.
- This embodiment is particularly suitable for a dial comprising or consisting of a solar cell since the raised portion 32 has the advantage of hiding the cutting defects of the solar cell.
- the retaining washer 20a according to Figure 1, the circlip 20b according to Figure 2 and the second tube 16b in the form of a screw screwed into the threaded portion of the first tube 16a according to Figures 3 and 4 all have the advantage to prevent the needles being dislodged during a major axial impact.
- the holding tube 15 can be adapted to bear or exert an axial stress not on the dial support 17 but directly on the dial 12 itself or directly on both the dial support 17 and the dial 12.
- the dial 12 may for example comprise a portion of the dial adjacent to the central opening 13 of the dial against which the dial bears. retaining member such as the retaining washer 20a, the circlip 20b or the seal 20c according to the embodiment chosen from those described above.
- the part adjacent the central opening 13 may define an annular zone set back from most of the surface of the dial so that a surface of the upper portion of the holding tube is at the same level as the dial.
- the fixing device according to the invention has the advantage of making it possible to produce dials in different materials which are not compatible for the manufacture of dials with feet. These dials can be obtained in particular by injection molding processes of plastic, metal or glass.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
Abstract
Description
P5626 - extension PCT P5626 - PCT extension
PIÈCE D’HORLOGERIE COMPORTANT UN DISPOSITIF DE FIXATION WATCHING PART COMPRISING A FASTENING DEVICE
D’UN CADRAN OF A DIAL
Domaine technique Technical area
La présente invention se rapporte au domaine de l’horlogerie et plus particulièrement à une pièce d’horlogerie comportant un dispositif de fixation d’un cadran de type classique ou de type comportant une cellule solaire. The present invention relates to the field of watchmaking and more particularly to a timepiece comprising a device for fixing a dial of conventional type or type comprising a solar cell.
Arrière-plan technologique Technological background
De manière conventionnelle, un cadran d’une pièce d’horlogerie comporte du côté de la face inférieure, c'est-à-dire du côté mouvement, des pieds métalliques agencés pour être chassés en partie dans des trous usinés dans la platine du mouvement. Ces pieds métalliques servent notamment à maintenir en place le cadran par rapport au mouvement de la montre lors de l'assemblage de cette dernière. La fixation du cadran dans la platine de mouvement selon le procédé susvisé à l’inconvénient d’impliquer des opérations d'usinage relativement complexes, le cadran devant être percé plusieurs fois avec précision avant montage des pieds métalliques. Par ailleurs, en cas de chocs importants, il y a toujours un risque de rupture des pieds du cadran. L'utilisation de tels cadrans dans les montres de type squelette se révèle de surcroît peu esthétique. Résumé de l’invention In a conventional manner, a dial of a timepiece comprises on the side of the lower face, that is to say on the movement side, metal feet arranged to be driven partly into machined holes in the movement plate. . These metal feet serve in particular to keep in place the dial with respect to the movement of the watch during the assembly of the latter. Fixing the dial in the movement plate according to the aforementioned method has the disadvantage of involving relatively complex machining operations, the dial to be drilled several times accurately before mounting the metal feet. Moreover, in case of major shocks, there is always a risk of breaking the dial feet. The use of such dials in skeleton type watches is also unattractive. Summary of the invention
La présente invention a par conséquent pour but de pallier les différents inconvénients susvisés. Plus précisément, un objectif de l'invention est de proposer une pièce d’horlogerie comportant un dispositif de fixation du cadran qui soit simple à mettre en œuvre et qui assure un bon maintien du cadran tout en garantissant une résistance mécanique notamment en cas de chocs selon l’axe des aiguilles. The present invention therefore aims to overcome the various disadvantages mentioned above. More specifically, an objective of the invention is to propose a timepiece comprising a device for fixing the dial which is simple to implement and which ensures a good maintenance of the dial. while ensuring a mechanical strength especially in case of shocks along the axis of the needles.
A cet effet, il est proposé une pièce d’horlogerie comportant un module moteur, un cadran comportant une ouverture centrale, un canon des heures traversant l’ouverture centrale du cadran et entraîné en rotation par le module moteur et un dispositif de fixation du cadran. Le dispositif de fixation comporte I : For this purpose, there is provided a timepiece comprising a motor module, a dial having a central opening, a clock of the hours passing through the central opening of the dial and rotated by the engine module and a device for fixing the dial. . The fixing device comprises I:
- un tube de maintien agencé autour du canon des heures et relié mécaniquement/solidaire au module moteur, et a holding tube arranged around the hour barrel and mechanically / firmly connected to the engine module, and
- un organe de retenue agencé entre le tube de maintien et le cadran et/ou un support de cadran sur lequel est fixé le cadran. - A retaining member arranged between the holding tube and the dial and / or a dial support on which is fixed the dial.
Selon une forme de réalisation, l’organe de retenue est agencé/disposé/situé entre le tube de maintien, et le cadran et/ou un support de cadran en étant en appui contre une partie du cadran adjacente à l’ouverture centrale du cadran et/ou contre le support de cadran. De préférence, l’organe de retenue est configuré pour être en appui ou pour exercer une contrainte axiale repartie soit sur une zone annulaire du cadran qui est adjacente et concentrique à l’ouverture centrale du cadran, soit sur une zone annulaire du support de cadran. According to one embodiment, the retaining member is arranged / arranged / located between the holding tube, and the dial and / or a dial support being in abutment against a portion of the dial adjacent to the central opening of the dial. and / or against the dial support. Preferably, the retaining member is configured to be in abutment or to exert an axial stress distributed either on an annular zone of the dial which is adjacent and concentric with the central opening of the dial, or on an annular zone of the dial support .
Selon une forme de réalisation, la partie du cadran adjacente à l’ouverture centrale du cadran définit une zone annulaire, de préférence en retrait par rapport à la surface du cadran, de sorte à ce qu’une surface de la partie supérieure du tube de maintien soit au même niveau que le cadran. According to one embodiment, the part of the dial adjacent to the central opening of the dial defines an annular zone, preferably recessed with respect to the surface of the dial, so that a surface of the upper part of the dial keeping it at the same level as the dial.
Selon une forme de réalisation, le tube de maintien comporte une première partie cylindrique possédant un premier diamètre et une seconde partie cylindrique possédant un second diamètre inférieur au premier diamètre. L’organe de retenue est une rondelle agencée sur la circonférence de la seconde partie cylindrique et en appui contre la zone annulaire du cadran ou contre le support de cadran de sorte à exercer une force axiale sur le cadran ou le support de cadran. In one embodiment, the holding tube has a first cylindrical portion having a first diameter and a second cylindrical portion having a second diameter smaller than the first diameter. The retaining member is a washer arranged on the circumference of the second cylindrical portion and bearing against the annular zone of the dial or against the dial support so as to exert an axial force on the dial or the dial support.
Selon une forme de réalisation, l’organe de retenue est un anneau élastique, de préférence de type circlip, agencé à l’intérieur d’une gorge réalisée sur au moins une partie de la circonférence externe du tube de maintien de sorte à ce que l’anneau élastique soit en appui contre la zone annulaire du cadran ou contre le support de cadran. According to one embodiment, the retaining member is an elastic ring, preferably of circlip type, arranged inside a groove formed on at least a portion of the outer circumference of the holding tube so that the elastic ring bears against the annular zone of the dial or against the dial support.
Selon une forme de réalisation, le tube de maintien comprend, d’une part, un premier tube relié mécaniquement au module moteur et comportant une partie filetée sur sa circonférence interne, et d’autre part, un second tube sous la forme d’une vis vissée dans la partie filetée du premier tube. La vis comporte une extension radiale afin de former une surface d’appui circulaire. L’organe de retenue est sous la forme d’un joint, de préférence de type O- ring, agencé contre la surface d’appui circulaire de la vis et la zone annulaire du cadran ou le support le support de cadran de sorte à exercer une force axiale sur le cadran ou le support de cadran. According to one embodiment, the holding tube comprises, on the one hand, a first tube mechanically connected to the engine module and having a threaded portion on its inner circumference, and on the other hand, a second tube in the form of a screw screwed into the threaded part of the first tube. The screw has a radial extension to form a circular bearing surface. The retaining member is in the form of a seal, preferably O-ring type, arranged against the circular bearing surface of the screw and the annular zone of the dial or the support the dial support so as to exert an axial force on the dial or the dial support.
Selon une forme de réalisation, la vis est noyée dans l’ouverture centrale du cadran. According to one embodiment, the screw is embedded in the central opening of the dial.
Selon une forme de réalisation, la vis comporte une partie surélevée par rapport au cadran et qui s’étend radialement afin de recouvrir l’ouverture centrale du cadran. According to one embodiment, the screw comprises a portion raised relative to the dial and which extends radially to cover the central opening of the dial.
Selon une forme de réalisation, la pièce d’horlogerie comporte en outre un support de mouvement et un support de circuit agencés entre le support de cadran et le module moteur. L’empilement de chaque support forme une base rigide empêchant la déformation du cadran en cas de choc axial. Selon une forme de réalisation, chaque support comporte une ouverture centrale afin de former un logement à l’intérieur duquel est ajusté, du moins en partie, le tube de maintien. According to one embodiment, the timepiece further comprises a movement support and a circuit support arranged between the dial support and the motor module. The stack of each support forms a rigid base preventing the deformation of the dial in the event of axial impact. According to one embodiment, each support has a central opening to form a housing within which is adjusted, at least in part, the holding tube.
Selon une forme de réalisation, le cadran comporte ou est constitué d’au moins une cellule solaire. According to one embodiment, the dial comprises or consists of at least one solar cell.
Brève description des figures Brief description of the figures
D’autres caractéristiques et avantages de la présente invention apparaîtrons à la lecture de plusieurs formes de réalisation données uniquement à titre d’exemples non limitatifs et faites en référence aux dessins annexés dans lesquels : Other characteristics and advantages of the present invention will appear on reading several embodiments given solely by way of nonlimiting examples and with reference to the appended drawings in which:
- la figure 1 représente une vue en coupe partielle de la pièce d’horlogerie illustrant le dispositif de fixation du cadran selon une première forme de réalisation de l’invention; - Figure 1 shows a partial sectional view of the timepiece illustrating the device for fixing the dial according to a first embodiment of the invention;
- la figure 2 représente une vue en coupe partielle de la pièce d’horlogerie illustrant le dispositif de fixation du cadran selon une deuxième forme de réalisation de l’invention; - Figure 2 shows a partial sectional view of the timepiece illustrating the fastening device of the dial according to a second embodiment of the invention;
- la figure 3 représente une vue en coupe partielle de la pièce d’horlogerie illustrant le dispositif de fixation du cadran selon une troisième forme de réalisation de l’invention, et FIG. 3 represents a partial sectional view of the timepiece illustrating the device for fixing the dial according to a third embodiment of the invention, and
- la figure 4 représente une vue en coupe partielle de la pièce d’horlogerie illustrant le dispositif de fixation du cadran selon une quatrième forme de réalisation de l’invention; - Figure 4 shows a partial sectional view of the timepiece illustrating the device for fixing the dial according to a fourth embodiment of the invention;
Description détaillée de l’invention Detailed description of the invention
De manière générale, le dispositif de fixation d’un cadran selon l’invention décrit ci-après, selon différentes formes de réalisation, peut être mis en œuvre dans des montres mécaniques ou à quartz comportant un cadran de type conventionnel/ classique, c’est-à-dire un cadran comportant par exemple des indexes répartis à intervalles réguliers autour de la périphérique du cadran, des chiffres pour représenter les heures, par exemple sous la forme d’appliques fixées sur le cadran et, selon le calibre, d’un ou plusieurs guichets pour indiquer par exemple la date ou d’autres informations. Le dispositif de fixation d’un cadran selon l’invention peut également être mis en œuvre dans des montres comportant un cadran de type non-conventionnel. Le dispositif de fixation selon l’invention est par exemple particulièrement bien adapté pour la fixation d’un cadran comportant ou constitué d’une cellule solaire pour alimenter par exemple une batterie et/ou un module électronique d’une montre dite intelligente. In general, the device for fixing a dial according to the invention described hereinafter, according to different embodiments, can be set in used in mechanical or quartz watches comprising a conventional / conventional type dial, ie a dial comprising, for example, indexes distributed at regular intervals around the circumference of the dial, numbers to represent the hours, by example in the form of wall-mounted sconces and, depending on the size, one or more windows to indicate, for example, the date or other information. The device for fixing a dial according to the invention can also be implemented in watches comprising a dial of non-conventional type. The fixing device according to the invention is for example particularly well suited for fixing a dial comprising or consisting of a solar cell for supplying for example a battery and / or an electronic module of a so-called smart watch.
Dans les différents modes de réalisation illustrés sur les figures 1 à 4, le dispositif de fixation du cadran 12 comporte un tube de maintien 15 agencé autour du canon des heures 14b et est relié mécaniquement au module moteur 10 par exemple par crochetage et ce par l’intermédiaire d’une extension radiale 18. De plus ce dispositif de fixation comprend aussi un organe de retenue 20a à 20c. Cet organe de retenue 20a à 20c est de préférence une pièce rapportée. Un tel organe de retenue 20a à 20c est une pièce qui est de préférence souple et/ou déformable prévue pour être agencée entre une seconde partie cylindrique 15b d’un tube de maintien 15, et le cadran 12 ou le support de cadran 17 de la montre. En effet, sous l’action de cette seconde partie du cylindrique 15b, cet organe de retenue 20a à 20c est apte à prendre appui contre une partie du cadran adjacente à une ouverture centrale 13 de ce cadran 12 et/ou contre le support de cadran 17. In the various embodiments illustrated in FIGS. 1 to 4, the device for fastening the dial 12 comprises a holding tube 15 arranged around the hour-barrel 14b and is mechanically connected to the motor module 10, for example by picking, and this by way of In addition, this fixing device also comprises a retaining member 20a to 20c. This retainer 20a to 20c is preferably an insert. Such a retaining member 20a to 20c is a piece which is preferably flexible and / or deformable provided to be arranged between a second cylindrical portion 15b of a holding tube 15, and the dial 12 or the dial support 17 of the shows. Indeed, under the action of this second portion of the cylindrical 15b, this retaining member 20a to 20c is able to bear against a portion of the dial adjacent to a central opening 13 of this dial 12 and / or against the dial support 17.
En référence à la figure 1 , qui illustre une première forme de réalisation de l’invention, la pièce d’horlogerie comporte notamment un module moteur 10, le cadran 12 pourvu d’une ouverture centrale 13, une chaussée 14a et un canon des heures 14b traversant l’ouverture centrale 13 du cadran 12 et entraînés en rotation par le module moteur 10. Le cadran 12 est fixé sur un support de cadran 17 par exemple au moyen d’un adhésif double-face 30a. La forme du support de cadran 17 est sensiblement identique à la forme du cadran 12. Le support de cadran 17 est monté sur un support de mouvement 26, lequel est fixé à sur support de circuit, de préférence un support de circuit imprimé 28, par exemple au moyen d’un adhésif double-face 30b. L’empilement des différents supports 17, 26, 28 forment une base rigide sur lequel repose le cadran 12, ce qui a pour avantage d’éviter une déformation du cadran 12 en cas de choc axial. Referring to Figure 1, which illustrates a first embodiment of the invention, the timepiece comprises in particular a motor module 10, the dial 12 provided with a central opening 13, a floor 14a and a gun hours 14b through the central opening 13 of the dial 12 and rotated by the engine module 10. The dial 12 is fixed on a dial support 17 for example by means of a double-sided adhesive 30a. The shape of the dial support 17 is substantially identical to the shape of the dial 12. The dial support 17 is mounted on a motion support 26, which is fixed on a circuit support, preferably a printed circuit support 28, by example by means of a double-sided adhesive 30b. The stack of the various supports 17, 26, 28 form a rigid base on which the dial 12 rests, which has the advantage of avoiding a deformation of the dial 12 in the event of an axial impact.
Cette base rigide est particulièrement bien adaptée pour un cadran 12 formé notamment d’une cellule solaire afin d’éviter une éventuelle rupture du substrat en verre de la cellule en cas de choc axial important. This rigid base is particularly well suited for a dial 12 formed in particular of a solar cell to prevent possible rupture of the glass substrate of the cell in case of significant axial impact.
La pièce d’horlogerie comporte le dispositif de fixation du cadran 12 comportant l’organe de retenue 20a, le tube de maintien 15 agencé autour du canon des heures 14b et relié mécaniquement au module moteur 10 ainsi. Le tube de maintien 15 comporte une première partie cylindrique 15a possédant un premier diamètre D1 et une seconde partie cylindrique 15b possédant un second diamètre D2 inférieur au premier diamètre D1. La première partie cylindrique 15a est logée dans une portion tubulaire formée par l’empilement des ouvertures centrales du support de cadran 17, du support de mouvement 26 et du support du circuit imprimé 28. Cet organe de retenue 20a comprend une rondelle de retenue 20a et est agencé sur la circonférence de la seconde partie cylindrique 15b. Cette rondelle de retenue 20a s’étend radialement de sorte à ce que sa périphérie prenne appuie contre le support de cadran 17 afin d’exercer une force axiale sur le support de cadran 17. Une extrémité de la première partie cylindrique 15a comporte l’extension radiale 18, par exemple de forme annulaire, qui est fixée ou reliée mécaniquement à un pont 10a du module moteur 10. En référence à la figure 2, qui illustre une deuxième forme de réalisation de l’invention, l’organe de retenue 20b comprend un anneau élastique 20b. Cet anneau élastique 20b est agencé à l’intérieur d’une gorge 22 réalisée sur la circonférence externe du tube de maintien 15 de sorte à ce que l’anneau élastique 20b soit en appui contre le support de cadran 17. L’anneau élastique peut par exemple être de type circlip afin de faciliter le démontage du dispositif de fixation. A l’instar de la première forme de réalisation, le tube de maintien 15 est logé dans la portion tubulaire formée par l’empilement des différents supports 17, 26, 28 afin de réaliser cette base rigide adaptée pour un cadran 12 comportant ou constitué d’une cellule solaire. Une extrémité du tube de maintien 15 comporte l’extension radiale 18, par exemple de forme annulaire, qui est fixée à un pont 10a du module moteur 10. The timepiece comprises the fastening device of the dial 12 comprising the retaining member 20a, the holding tube 15 arranged around the hour barrel 14b and mechanically connected to the engine module 10 as well. The holding tube 15 has a first cylindrical portion 15a having a first diameter D1 and a second cylindrical portion 15b having a second diameter D2 less than the first diameter D1. The first cylindrical portion 15a is housed in a tubular portion formed by the stacking of the central openings of the dial support 17, the movement support 26 and the support of the printed circuit 28. This retaining member 20a comprises a retaining washer 20a and is arranged on the circumference of the second cylindrical portion 15b. This retaining washer 20a extends radially so that its periphery is pressed against the dial support 17 to exert an axial force on the dial support 17. One end of the first cylindrical portion 15a has the extension radial 18, for example of annular shape, which is fixed or mechanically connected to a bridge 10a of the motor module 10. With reference to FIG. 2, which illustrates a second embodiment of the invention, the retaining member 20b comprises an elastic ring 20b. This elastic ring 20b is arranged inside a groove 22 made on the outer circumference of the holding tube 15 so that the elastic ring 20b bears against the dial support 17. The elastic ring can for example be circlip type to facilitate removal of the fastener. Like the first embodiment, the holding tube 15 is housed in the tubular portion formed by the stack of the various supports 17, 26, 28 in order to produce this rigid base adapted for a dial 12 comprising or consisting of a solar cell. One end of the holding tube 15 has the radial extension 18, for example of annular shape, which is fixed to a bridge 10a of the motor module 10.
Selon la figure 3, qui illustre une troisième forme de réalisation de l’invention, le tube de maintien 15 comprend un premier tube 16a comportant, d’une part, une extension radiale fixée à un pont 10a du module moteur 10, et d’autre part, une partie filetée sur sa circonférence interne. Le premier tube 16a est logé dans la portion tubulaire formée par l’empilement des différents supports 17, 26, 28 réalisant cette base rigide. Le tube de maintien 15 comporte en outre un second tube 16b sous la forme d’une vis vissée dans la partie filetée du premier tube 16a. La vis 16b comporte à une extrémité une extension radiale 24 afin de former une surface d’appui circulaire 24a. Dans le dispositif de fixation, l’organe de retenue 20c comprend un joint 20c, par exemple de type O-ring. Ce joint 20c est agencé contre la surface d’appui circulaire 24a de la vis 16b et le support de cadran 17 de sorte à exercer une force axiale sur le support de cadran 17. La vis 16b est noyée dans l’ouverture centrale 13 du cadran 12. Pour la fixation d’un cadran classique, le diamètre de l’extension radiale 24 est de préférence sensiblement identique au diamètre de l’ouverture centrale 13 du cadran afin d’avoir un aspect esthétique avantageux. Dans une variante, l’organe de retenue 20c du dispositif de fixation comprend joint 20c qui est agencé contre la surface d’appui circulaire 24a de la vis 16b et le support de cadran 17. Dans ces conditions l’extension radiale 24 formant une surface d’appui circulaire 24a définie à l’extrémité de ladite vis 16b est alors apte à exercer directement une force axiale sur le support de cadran 17 par l’intermédiaire de l’organe de retenue 20c. According to FIG. 3, which illustrates a third embodiment of the invention, the holding tube 15 comprises a first tube 16a comprising, on the one hand, a radial extension fixed to a bridge 10a of the engine module 10, and on the other hand, a threaded part on its inner circumference. The first tube 16a is housed in the tubular portion formed by the stack of different supports 17, 26, 28 forming this rigid base. The holding tube 15 further comprises a second tube 16b in the form of a screw screwed into the threaded portion of the first tube 16a. The screw 16b has at one end a radial extension 24 to form a circular bearing surface 24a. In the fixing device, the retaining member 20c comprises a seal 20c, for example of the O-ring type. This seal 20c is arranged against the circular bearing surface 24a of the screw 16b and the dial support 17 so as to exert an axial force on the dial support 17. The screw 16b is embedded in the central opening 13 of the dial 12. For fixing a conventional dial, the diameter of the radial extension 24 is preferably substantially identical to the diameter of the central opening 13 of the dial in order to have an advantageous aesthetic appearance. In a variant, the retaining member 20c of the fixing device comprises a seal 20c which is arranged against the circular bearing surface 24a of the screw 16b and the dial support 17. Under these conditions the radial extension 24 forming a surface circular support 24a defined at the end of said screw 16b is then able to directly exert an axial force on the dial support 17 by means of the retaining member 20c.
Selon la figure 4, qui illustre une quatrième forme de réalisation de l’invention, le dispositif de fixation du cadran comporte un tube de maintien de construction similaire à la troisième forme de réalisation à la différence que la vis 16b comporte une partie surélevée 32 par rapport au cadran 12 qui s’étend radialement afin de recouvrir l’ouverture centrale 13 du cadran 12. Cette forme de réalisation est particulièrement adaptée pour un cadran comportant ou constitué d’une cellule solaire puisque la partie surélevée 32 à l’avantage de cacher les défauts de découpe de la cellule solaire. According to FIG. 4, which illustrates a fourth embodiment of the invention, the device for fastening the dial comprises a holding tube of similar construction to the third embodiment, with the difference that the screw 16b comprises an elevated portion 32 by relative to the dial 12 which extends radially to cover the central opening 13 of the dial 12. This embodiment is particularly suitable for a dial comprising or consisting of a solar cell since the raised portion 32 has the advantage of hiding the cutting defects of the solar cell.
La rondelle de retenue 20a selon la figure 1 , le circlip 20b selon la figure 2 ainsi que le second tube 16b sous la forme d’une vis vissée dans la partie filetée du premier tube 16a selon les figures 3 et 4 ont tous l’avantage d’empêcher un déchassage des aiguilles lors d’un choc axial important. The retaining washer 20a according to Figure 1, the circlip 20b according to Figure 2 and the second tube 16b in the form of a screw screwed into the threaded portion of the first tube 16a according to Figures 3 and 4 all have the advantage to prevent the needles being dislodged during a major axial impact.
Naturellement, l'invention n'est pas limitée aux formes de réalisation décrites en référence aux figures et des variantes pourraient être implémentées sans sortir du cadre de l'invention. Par exemple, le tube de maintien 15 selon l’une quelconque des formes de réalisation qui viennent d’être décrites, peut être adapté pour être en appui ou exercer une contrainte axiale non pas sur le support de cadran 17 mais directement sur le cadran 12 lui-même voire directement à la fois sur le support de cadran 17 et le cadran 12. A cet effet, le cadran 12 peut par exemple comporter une partie de cadran adjacente à l’ouverture centrale 13 du cadran contre laquelle est en appui l’organe de retenue tel que la rondelle de retenue 20a, le circlip 20b ou le joint 20c selon la forme de réalisation choisie parmi celles décrites précédemment. La partie de cadran adjacente à l’ouverture centrale 13 peut définir une zone annulaire en retrait par rapport à la plus grande partie de la surface du cadran de sorte à ce qu’une surface de la partie supérieure du tube de maintien soit au même niveau que le cadran. Naturally, the invention is not limited to the embodiments described with reference to the figures and variants could be implemented without departing from the scope of the invention. For example, the holding tube 15 according to any of the embodiments that have just been described, can be adapted to bear or exert an axial stress not on the dial support 17 but directly on the dial 12 itself or directly on both the dial support 17 and the dial 12. For this purpose, the dial 12 may for example comprise a portion of the dial adjacent to the central opening 13 of the dial against which the dial bears. retaining member such as the retaining washer 20a, the circlip 20b or the seal 20c according to the embodiment chosen from those described above. The part adjacent the central opening 13 may define an annular zone set back from most of the surface of the dial so that a surface of the upper portion of the holding tube is at the same level as the dial.
Le dispositif de fixation selon l’invention à l’avantage de permettre de réaliser des cadrans dans différentes matières qui ne sont pas compatible pour la fabrication de cadrans à pieds. Ces cadrans peuvent être obtenus notamment par des procédés d’injection de plastique, de métal ou de verre. The fixing device according to the invention has the advantage of making it possible to produce dials in different materials which are not compatible for the manufacture of dials with feet. These dials can be obtained in particular by injection molding processes of plastic, metal or glass.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17209869.1A EP3502790A1 (en) | 2017-12-21 | 2017-12-21 | Timepiece comprising a device for attaching a dial |
| PCT/EP2018/084210 WO2019121116A1 (en) | 2017-12-21 | 2018-12-10 | Timepiece comprising a dial attachment device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3729204A1 true EP3729204A1 (en) | 2020-10-28 |
| EP3729204B1 EP3729204B1 (en) | 2023-01-25 |
Family
ID=60781995
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17209869.1A Withdrawn EP3502790A1 (en) | 2017-12-21 | 2017-12-21 | Timepiece comprising a device for attaching a dial |
| EP18815697.0A Active EP3729204B1 (en) | 2017-12-21 | 2018-12-10 | Timepiece comprising a device for attaching a dial |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17209869.1A Withdrawn EP3502790A1 (en) | 2017-12-21 | 2017-12-21 | Timepiece comprising a device for attaching a dial |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11687036B2 (en) |
| EP (2) | EP3502790A1 (en) |
| JP (1) | JP7137630B2 (en) |
| KR (1) | KR102392230B1 (en) |
| CN (1) | CN111465905B (en) |
| WO (1) | WO2019121116A1 (en) |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH315646A (en) * | 1953-01-16 | 1956-08-31 | Aubert Paul Lucien | Timepiece |
| FR1491555A (en) * | 1966-07-01 | 1967-08-11 | Cie Ind De Metrologie Trophy | Improvement in the fixing of a dial on a clockwork movement by central nut |
| JPS58129174U (en) * | 1983-01-20 | 1983-09-01 | セイコーエプソン株式会社 | Analog watch needle structure |
| CH649433GA3 (en) * | 1983-08-30 | 1985-05-31 | ||
| JPS60181676A (en) * | 1984-02-29 | 1985-09-17 | Citizen Watch Co Ltd | Method for fixing watch dial panel |
| JPS60154884U (en) * | 1984-03-26 | 1985-10-15 | リズム時計工業株式会社 | Clock pointer mounting structure |
| JPH0248874B2 (en) * | 1985-07-17 | 1990-10-26 | Seikosha Kk | TOKEIKIKO |
| JPS62169075A (en) * | 1986-01-21 | 1987-07-25 | Seikosha Co Ltd | Time-piece |
| ATE189536T1 (en) * | 1991-05-10 | 2000-02-15 | Omron Tateisi Electronics Co | TIMER WITH DIAL |
| JP2540995Y2 (en) * | 1993-12-28 | 1997-07-09 | リズム時計工業株式会社 | Guide display for alarm clock |
| CN1120302A (en) * | 1994-10-05 | 1996-04-10 | 荣汉斯·乌伦股份公司 | Clock with built-in receiver |
| JP3051910B2 (en) * | 1995-05-16 | 2000-06-12 | セイコーインスツルメンツ株式会社 | Electronic equipment with EL panel |
| US5764599A (en) * | 1996-08-12 | 1998-06-09 | Timex Corporation | Electroluminescent lamp and dial for a timepiece |
| US8535233B2 (en) * | 2000-09-25 | 2013-09-17 | Welch Allyn, Inc. | Blood pressure measuring apparatus |
| TW505830B (en) * | 2001-04-03 | 2002-10-11 | Ebauchesfabrik Eta Ag | Timepiece movement |
| EP1434114B1 (en) * | 2002-12-23 | 2010-04-07 | Asulab S.A. | Watch with a housing having a bottom or hatch cover with bayonet mount that can be opened manually |
| CH705087B1 (en) * | 2011-06-06 | 2017-02-28 | Hublot Sa Genève | Clockwork. |
| JP2013068430A (en) * | 2011-09-20 | 2013-04-18 | Seiko Epson Corp | Dial plate assembly and timepiece |
| JP5798888B2 (en) * | 2011-10-31 | 2015-10-21 | セイコーインスツル株式会社 | Electronic clock |
| US9886004B2 (en) * | 2013-04-24 | 2018-02-06 | Eta Sa Manufacturing Horlogere Suisse | Method and device for assembling a movement to a watch case |
| CN203535385U (en) * | 2013-07-12 | 2014-04-09 | 卡西欧计算机株式会社 | Timepiece dial and timepiece |
| CN203773237U (en) * | 2013-08-29 | 2014-08-13 | Eta瑞士钟表制造股份有限公司 | Clock movement, modularized clock assembly having clock movement, and clock |
| US10928778B2 (en) * | 2014-03-25 | 2021-02-23 | Eta Sa Manufacture Horlogere Suisse | Timepiece provided with a dial and associated fastening method |
| JP2016109533A (en) * | 2014-12-05 | 2016-06-20 | セイコーエプソン株式会社 | Electronic clock |
-
2017
- 2017-12-21 EP EP17209869.1A patent/EP3502790A1/en not_active Withdrawn
-
2018
- 2018-12-10 CN CN201880080516.8A patent/CN111465905B/en active Active
- 2018-12-10 EP EP18815697.0A patent/EP3729204B1/en active Active
- 2018-12-10 WO PCT/EP2018/084210 patent/WO2019121116A1/en unknown
- 2018-12-10 US US16/767,848 patent/US11687036B2/en active Active
- 2018-12-10 KR KR1020207017722A patent/KR102392230B1/en active Active
- 2018-12-10 JP JP2020552116A patent/JP7137630B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111465905A (en) | 2020-07-28 |
| EP3502790A1 (en) | 2019-06-26 |
| JP2021507267A (en) | 2021-02-22 |
| KR102392230B1 (en) | 2022-04-28 |
| US20200292994A1 (en) | 2020-09-17 |
| JP7137630B2 (en) | 2022-09-14 |
| CN111465905B (en) | 2022-09-02 |
| EP3729204B1 (en) | 2023-01-25 |
| KR20200089720A (en) | 2020-07-27 |
| WO2019121116A1 (en) | 2019-06-27 |
| US11687036B2 (en) | 2023-06-27 |
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