EP3309627B1 - Watch with indexed hinge - Google Patents

Watch with indexed hinge Download PDF

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Publication number
EP3309627B1
EP3309627B1 EP17192313.9A EP17192313A EP3309627B1 EP 3309627 B1 EP3309627 B1 EP 3309627B1 EP 17192313 A EP17192313 A EP 17192313A EP 3309627 B1 EP3309627 B1 EP 3309627B1
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EP
European Patent Office
Prior art keywords
hinge
cavities
rotation
watch
axis
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Application number
EP17192313.9A
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German (de)
French (fr)
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EP3309627A1 (en
Inventor
Moïse LIENART
Ludovic Marais
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Richemont International SA
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Richemont International SA
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Publication of EP3309627A1 publication Critical patent/EP3309627A1/en
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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
    • G04B37/00—Cases
    • 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
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G04B37/0025—Cases for pocket watches and wrist watches with cover or bottom with a spring (savonette) bench watches opening or closing with spring action G04B37/0463
    • 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
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G04B37/0041—Cases for pocket watches and wrist watches the cover or the bottom can slide or turn with a spring action
    • 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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/04—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached ornaments or amusement apparatus
    • G04B47/044—Movable decorations and parts thereof

Definitions

  • the present invention relates to the field of watchmaking. It relates, more particularly, to a watch comprising a box housing a watch movement, and an element articulated on the box by means of a hinge with indexed positions.
  • the hinge defines an axis of rotation.
  • the hinge comprises a first part secured to the box, and a second part secured to the element. The first and second parts are engaged one inside the other and are movable in rotation relative to each other along the axis of rotation of the hinge.
  • timepieces As mentioned above. For example, some parts have two movements, each arranged in a box, the two boxes being connected to each other via an indexed hinge.
  • the hinges generally used to make this kind of part include a ball pawl, housed in the middle of one of the boxes.
  • the pawl is arranged so that the stroke of its ball is perpendicular to the axis of the hinge.
  • the ball is able to take place in housings formed at the periphery of the other box, on a portion concentric with the axis of the hinge.
  • the relative position of the two boxes is indexed, that is to say that it is stabilized in a predefined position.
  • a movable piston housed in the housing bears against the periphery of the movable part of the hinge, the indexing being effected by the cooperation of this piston with one or more flats provided on the hinge for this purpose.
  • Such a hinge can affect the aesthetics of the timepiece, because it is bulky and requires having a box large enough to place the ball pawl there.
  • a main aim of the present invention is to propose an alternative system, simpler and less bulky than the systems of the prior art, making it possible to obtain indexing between a box and an element articulated on the box, such as a second box, a decorative element or a cover.
  • the elastic member may be of the clip spring type having elastic branches connected to each other by a base, said branches being symmetrical by rotation about the axis of rotation of the hinge and being capable of being deformed in a plane containing the branch and the axis of rotation, and in that said cavities are oblong and oriented parallel to the axis of rotation of the hinge.
  • the first part secured to the box comprises the rod and the second part secured to the element comprises a female portion of the hinge, cooperating with the rod.
  • This watch comprises a box 10 housing a watch movement, and an element 12 articulated on the box 10 by means of a hinge with indexed positions.
  • the case 10 of the watch was only very partially represented at the figure 3 .
  • the middle of the box 10 has a recess of complementary shape, so as to house the hinge in an aesthetic manner in the recess, that is to say by essentially masking its different parts.
  • the hinge comprises a first part 14 shown in the figure 4 , which in this case comprises the male portion of the hinge, and which is shaped to be fixed to the middle part of the box 10.
  • this first part 14 can have a T shape, with a first arm 14a , intended to be in support and fixed to the watch case 10, and a second arm 14b disposed orthogonally on the first arm 14a.
  • the male portion of the hinge extends from the second arm 14b, parallel to the first arm 14a.
  • first arm 14a May be provided on the first arm 14a, means for positioning the first part 14 with reference to the box 10, for example holes 16 or threads.
  • the male portion comprises a rod 18, of essentially circular section, in order to allow the rotation of a second part 20 of the hinge.
  • the rod 18 receives first cavities 22, preferably of oblong shape, arranged parallel to the axis of the hinge. These first cavities 22 can be extended so as to cross the second arm 14b of the T, and each having a through opening 14c, the role of which will appear later.
  • the second part 20 of the hinge is particularly illustrated on the figure 5 . It is integral with the element 12, articulated on the box 10.
  • the second part 20 of the hinge comprises an ear 20a capable of being disposed in a plane perpendicular to the general plane of the second part 20. This ear 20a is pierced with a through opening 24, forming the female portion of the hinge and dimensioned to adapt to the male portion of the first part 14.
  • the second part 20 of the hinge can therefore be engaged on the first part 14, allowing the rotation of one of the parts relative to the other, along the axis of rotation of the hinge.
  • the clearance around the male portion and the dimensioning of the ear 20a around the opening 24 allow the relative displacement of the first part 14 relative to the second 20.
  • the female portion receives second cavities 26, preferably of oblong shape, arranged parallel to the axis of the hinge.
  • the hinge further comprises an elastic member 30 interposed between the first 14 and the second 20 parts. More particularly, according to the example, the elastic member 30 is carried by the first part 14 and is housed in particular in the first cavities 22 of the rod 18.
  • the elastic member 30 is of the clip spring type ( Fig. 6 ) having elastic branches 30a connected together by a base.
  • the branches are symmetrical by rotation about the axis of rotation of the hinge and are capable of being deformed in a deformation plane containing the branch and the axis of rotation.
  • the cavities 22 and 26 are oblong and oriented parallel to the axis of rotation of the hinge, in order to receive the branches 30a of the elastic member 30.
  • the clip spring comprises two branches 30a.
  • the base of the clip spring is disposed integrally in a housing that comprises the second arm 14b, at the level of the through openings 14c so that the branches 30a come out of the first part 14 taking place, at least partially, in the first cavities 22 of the male portion.
  • the branches 30a are kept in translation along the axis of rotation of the hinge but they are liable to deform in the above-mentioned deformation plane, passing through the first cavities 22.
  • the hinge fitted to a watch operates in the following manner.
  • the first cavities 22 of the first part 14 and the second cavities 26 of the second part 20 are arranged opposite one another and together form the housing in which takes place the branches 30a of the elastic member 30.
  • the branches 30a are positioned at interface between the first 14 and the second part 20, at least partially in the first cavities 22 and in the second cavities 26. In this way, the branches 30a of the elastic member 30 oppose the free relative rotation of a part of the hinge relative to the other.
  • the first cavities 22 of the first part 14 are dimensioned so that the branches 30a can take their place there entirely, thus leaving free, apart from friction, the relative rotation of the first 14 and second 20 parts, around the axis of the hinge. In other words, the depth of the first cavities is greater than the section of the branches 30a, taken in the plane of deformation of the branches. The user can then maneuver the movable element 12, until reaching the next indexed position, in which the elastic member 30 relaxes and takes place again at the interface of the first 14 and second 20 parts.
  • the stiffness of the elastic member 30 is preferably sufficient for the indexed positions to be stable, that is to say that the weight of the watch or of the movable element 12, possibly with the inertia of a displacement moderate, fails to get the elastic member 30 out of the housing formed by the cavities of the first 14 and second 20 parts.
  • the female portion comprises a conical portion 24a on the side of the second arm 14b of the first part 14, the diameter of the conical portion 24a decreasing away from said second arm 14b.
  • the male portion comprises two cavities 22 diametrically opposite
  • the female portion comprises four cavities 26, diametrically opposite in pairs, and thus forming pairs.
  • the number of pairs of diametrically opposite cavities defines the number n of indexed positions.
  • a mobile element 12 chosen from the following elements: a cover, a decorative element or a second watch case.
  • a cover a cover
  • a decorative element a second watch case.
  • the hinge principle incorporating an indexing system can be applied by implementing a pair of hinges, arranged so that their respective axes are aligned or at least parallel.
  • pair of hinges is meant two separate hinges, implementing two separate male parts.
  • the indexed positions of each hinge are provided to correspond to the same relative positions of the box 10 and the movable element 12, but they can also be offset angularly, in order to offer more intermediate positions, without being dependent on the difficulties linked to the limited space available at the interface of the first and second parts to multiply the number of cavities.
  • the hinges can be mounted separately on the movable element 12 and then fix them respectively on the box 10.
  • the principle can also be applied to a double hinge, that is to say with two male portions extending on either side of the arm of the first element 12, the two male portions being aligned.
  • We can then adapt the arm so that the spring members are housed there by its free end for example.
  • provision may be made for having two separate movable parts, which can be assembled separately on the male portions.
  • a watch is provided with a box 10 and a mobile element 12 articulated on the box by means of a hinge, making it possible to obtain indexed positions between the box 10 and the mobile element 12 in a particularly advantageous manner.
  • an elastic member 30 interposed between the usual elements of a hinge.

Description

Domaine techniqueTechnical area

La présente invention se rapporte au domaine de l'horlogerie. Elle concerne, plus particulièrement, une montre comprenant une boîte logeant un mouvement horloger, et un élément articulé sur la boîte au moyen d'une charnière à positions indexées. La charnière définit un axe de rotation. La charnière comprend une première partie solidaire de la boîte, et une deuxième partie solidaire de l'élément. Les première et deuxième parties sont engagées l'une dans l'autre et sont mobiles en rotation l'une par rapport à l'autre selon l'axe de rotation de la charnière.The present invention relates to the field of watchmaking. It relates, more particularly, to a watch comprising a box housing a watch movement, and an element articulated on the box by means of a hinge with indexed positions. The hinge defines an axis of rotation. The hinge comprises a first part secured to the box, and a second part secured to the element. The first and second parts are engaged one inside the other and are movable in rotation relative to each other along the axis of rotation of the hinge.

Etat de la techniqueState of the art

Il existe déjà dans l'état de la technique, des pièces d'horlogerie telles que mentionnées ci-dessus. Par exemple, certaines pièces comportent deux mouvements, disposés chacun dans une boîte, les deux boîtes étant reliées l'une à l'autre par l'intermédiaire d'une charnière indexée.There already exists in the state of the art, timepieces as mentioned above. For example, some parts have two movements, each arranged in a box, the two boxes being connected to each other via an indexed hinge.

Les charnières généralement utilisées pour réaliser ce genre de pièce, comportent un cliquet à bille, logé dans la carrure de l'une des boîtes. Le cliquet est disposé de manière à ce que la course de sa bille soit perpendiculaire à l'axe de la charnière. La bille est apte à prendre place dans des logements ménagés à la périphérie de l'autre boîte, sur une portion concentrique à l'axe de la charnière. Lorsque la bille est engagée dans l'un des logements, la position relative des deux boîtes se trouve indexée, c'est-à-dire qu'elle est stabilisée dans une position prédéfinie. Un exemple d'un système similaire est divulgué par le document CH697850 . Dans cette variante, un piston mobile logé dans le boitier s'appuie contre le pourtour de la partie mobile de la charnière, l'indexation s'effectuant par la coopération de ce piston avec un ou plusieurs méplats prévus sur la charnière à cet effet.The hinges generally used to make this kind of part, include a ball pawl, housed in the middle of one of the boxes. The pawl is arranged so that the stroke of its ball is perpendicular to the axis of the hinge. The ball is able to take place in housings formed at the periphery of the other box, on a portion concentric with the axis of the hinge. When the ball is engaged in one of the housings, the relative position of the two boxes is indexed, that is to say that it is stabilized in a predefined position. An example of a similar system is disclosed by the document CH697850 . In this variant, a movable piston housed in the housing bears against the periphery of the movable part of the hinge, the indexing being effected by the cooperation of this piston with one or more flats provided on the hinge for this purpose.

Une telle charnière peut nuire à l'esthétique de la pièce d'horlogerie, car elle est encombrante et nécessite d'avoir une boîte suffisamment volumineuse pour y disposer le cliquet à bille.Such a hinge can affect the aesthetics of the timepiece, because it is bulky and requires having a box large enough to place the ball pawl there.

Il est noté par ailleurs que des cliquets à billes sont également connus dans le document US2636338 pour le verrouillage de l'extrémité libre d'un couvercle en charnière. Ce système comprend un système à ressort tendant à maintenir le couvercle en position ouverte, dans laquelle position le couvercle bute contre le boîtier sous l'effet dudit ressort.It is also noted that ball pawls are also known in the document. US2636338 for locking the free end of a hinged cover. This system comprises a spring system tending to keep the cover in the open position, in which position the cover abuts against the housing under the effect of said spring.

Divulgation de l'inventionDisclosure of invention

Un but principal de la présente invention est de proposer un système alternatif, plus simple et moins encombrant que les systèmes de l'art antérieur, permettant d'obtenir un indexage entre une boîte et un élément articulé sur la boîte, comme une deuxième boîte, un élément décoratif ou un couvercle.A main aim of the present invention is to propose an alternative system, simpler and less bulky than the systems of the prior art, making it possible to obtain indexing between a box and an element articulated on the box, such as a second box, a decorative element or a cover.

A cet effet, la présente invention concerne plus particulièrement, une montre comprenant une boîte logeant un mouvement horloger, et un élément articulé sur la boîte au moyen d'une charnière à positions indexées, ladite charnière définissant un axe de rotation et comprenant :

  • une première partie solidaire de la boîte, et
  • une deuxième partie solidaire de l'élément,
lesdites parties étant mobiles en rotation l'une par rapport à l'autre selon l'axe de rotation de la charnière,
caractérisée en ce que l'une des parties comprend une tige disposée selon ledit axe et en ce que l'autre partie est engagée sur ladite tige, et
caractérisée en ce que, pour définir lesdites positions indexées, la charnière comprend, en outre, un organe élastique intercalé entre lesdites parties et porté par l'une d'elles, la première partie comprenant des premières cavités et la deuxième partie comprenant des deuxièmes cavités, lesdites premières et deuxièmes cavités étant ménagées de façon à pouvoir coopérer entres elles de telle sorte à former ensemble un logement lorsqu'elles sont positionnées les unes en regard des autres, et
en ce que l'organe élastique est agencé de manière à
  • être en position de repos dans un logement formé par la coopération des cavités des première et deuxième parties, lorsque la charnière est dans une position indexée,
  • être contraint dans un logement formé par les cavités d'une seule des première et deuxième parties, lorsque la charnière est entre deux positions indexées.
To this end, the present invention relates more particularly to a watch comprising a box housing a timepiece movement, and an element articulated on the box by means of a hinge with indexed positions, said hinge defining an axis of rotation and comprising:
  • a first integral part of the box, and
  • a second part secured to the element,
said parts being movable in rotation relative to each other along the axis of rotation of the hinge,
characterized in that one of the parts comprises a rod arranged along said axis and in that the other part is engaged on said rod, and
characterized in that, to define said indexed positions, the hinge further comprises an elastic member interposed between said parts and carried by one of them, the first part comprising first cavities and the second part comprising second cavities , said first and second cavities being arranged so as to be able to cooperate with one another so as to together form a housing when they are positioned facing one another, and
in that the elastic member is arranged so as to
  • be in the rest position in a housing formed by the cooperation of the cavities of the first and second parts, when the hinge is in an indexed position,
  • be forced into a housing formed by the cavities of only one of the first and second parts, when the hinge is between two indexed positions.

Grâce à ces caractéristiques, on obtient un système d'indexage particulièrement peu encombrant, simple à mettre en oeuvre et sans incidence sur l'esthétique de la montre, comparativement à la même montre qui serait munie d'une charnière traditionnelle, sans indexage.Thanks to these characteristics, a particularly space-saving indexing system is obtained, simple to implement and without affecting the aesthetics of the watch, compared to the same watch which would be provided with a traditional hinge, without indexing.

De manière préférée, on peut prévoir que l'organe élastique est de type ressort agrafe présentant des branches élastiques reliées entre elles par une base, lesdites branches étant symétriques par rotation autour de l'axe de rotation de la charnière et étant susceptibles d'être déformées dans un plan contenant la branche et l'axe de rotation, et en ce que lesdites cavités sont oblongues et orientées parallèlement à l'axe de rotation de la charnière.Preferably, provision may be made for the elastic member to be of the clip spring type having elastic branches connected to each other by a base, said branches being symmetrical by rotation about the axis of rotation of the hinge and being capable of being deformed in a plane containing the branch and the axis of rotation, and in that said cavities are oblong and oriented parallel to the axis of rotation of the hinge.

Dans une alternative préférée, la première partie solidaire de la boîte comprend la tige et la deuxième partie solidaire de l'élément comprend une portion femelle de la charnière, coopérant avec la tige.In a preferred alternative, the first part secured to the box comprises the rod and the second part secured to the element comprises a female portion of the hinge, cooperating with the rod.

On peut prévoir que la première partie comprend un bras et la portion mâle est en saillie dudit bras, la base de l'agrafe étant positionnée dans un logement que comporte le bras et les branches de l'agrafe sont positionnées au moins partiellement dans les cavités ménagées à la périphérie de la portion mâle.Provision may be made for the first part to include an arm and the male portion to project from said arm, the base of the clip being positioned in a housing which the arm comprises and the branches of the clip are positioned at least partially in the cavities. formed at the periphery of the male portion.

D'autres caractéristiques secondaires de l'invention sont proposées dans les revendications dépendantes.Other secondary features of the invention are proposed in the dependent claims.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée de modes de réalisation préférés qui suit, faite en référence aux dessins annexés, donnés à titre d'exemples non limitatifs et, dans lesquels :

  • les figures 1 et 2 sont des vues en perspective d'une charnière d'une montre selon l'invention, dans deux positions relatives différentes de l'élément par rapport à la boîte,
  • la figure 3 représente une vue en coupe correspondant à la position de la figure 2, et
  • les figures 4, 5 et 6 sont des vues en perspective de chacune des pièces essentielles d'une charnière d'une montre selon l'invention.
Other characteristics and advantages of the present invention will appear more clearly on reading the detailed description of preferred embodiments which follows, made with reference to the appended drawings, given by way of nonlimiting examples and in which:
  • the Figures 1 and 2 are perspective views of a hinge of a watch according to the invention, in two different relative positions of the element relative to the case,
  • the figure 3 represents a sectional view corresponding to the position of the figure 2 , and
  • the figures 4, 5 and 6 are perspective views of each of the essential parts of a hinge of a watch according to the invention.

Mode(s) de réalisation de l'inventionMode (s) of Carrying Out the Invention

On a représenté sur la figure 1, les éléments essentiels d'une montre selon l'invention. Cette montre comprend une boîte 10 logeant un mouvement horloger, et un élément 12 articulé sur la boîte 10 au moyen d'une charnière à positions indexées. Pour une meilleure visibilité de la charnière, la boîte 10 de la montre n'a été représentée de manière très partielle qu'à la figure 3. La carrure de la boîte 10 présente une creusure de forme complémentaire, de manière à loger la charnière de manière esthétique dans la creusure, c'est-à-dire en masquant essentiellement ses différentes parties.We have represented on the figure 1 , the essential elements of a watch according to the invention. This watch comprises a box 10 housing a watch movement, and an element 12 articulated on the box 10 by means of a hinge with indexed positions. For better visibility of the hinge, the case 10 of the watch was only very partially represented at the figure 3 . The middle of the box 10 has a recess of complementary shape, so as to house the hinge in an aesthetic manner in the recess, that is to say by essentially masking its different parts.

De manière plus précise, la charnière comprend une première partie 14 représentée sur la figure 4, qui comprend en l'espèce la portion mâle de la charnière, et qui est conformée pour être fixée à la carrure de la boîte 10. De manière non limitative, cette première partie 14 peut présenter une forme de T, avec un premier bras 14a, destiné à être en appui et fixé à la boîte 10 de montre, et un deuxième bras 14b disposé orthogonalement sur le premier bras 14a. La portion mâle de la charnière s'étend depuis le deuxième bras 14b, parallèlement au premier bras 14a.More specifically, the hinge comprises a first part 14 shown in the figure 4 , which in this case comprises the male portion of the hinge, and which is shaped to be fixed to the middle part of the box 10. In a nonlimiting manner, this first part 14 can have a T shape, with a first arm 14a , intended to be in support and fixed to the watch case 10, and a second arm 14b disposed orthogonally on the first arm 14a. The male portion of the hinge extends from the second arm 14b, parallel to the first arm 14a.

On peut prévoir sur le premier bras 14a, des moyens de positionnement de la première partie 14 en référence à la boîte 10, par exemple des trous 16 ou des taraudages.May be provided on the first arm 14a, means for positioning the first part 14 with reference to the box 10, for example holes 16 or threads.

La portion mâle comprend une tige 18, de section essentiellement circulaire, afin de permettre la rotation d'une deuxième partie 20 de la charnière. A sa périphérie, la tige 18 reçoit des premières cavités 22, de préférence de forme oblongue, disposées parallèlement à l'axe de la charnière. Ces premières cavités 22 peuvent se prolonger de manière à traverser le deuxième bras 14b du T, et à présenter chacune une ouverture débouchante 14c, dont le rôle apparaîtra ultérieurement.The male portion comprises a rod 18, of essentially circular section, in order to allow the rotation of a second part 20 of the hinge. At its periphery, the rod 18 receives first cavities 22, preferably of oblong shape, arranged parallel to the axis of the hinge. These first cavities 22 can be extended so as to cross the second arm 14b of the T, and each having a through opening 14c, the role of which will appear later.

La deuxième partie 20 de la charnière est particulièrement illustrée sur la figure 5. Elle est solidaire de l'élément 12, articulé sur la boîte 10. La deuxième partie 20 de la charnière comprend une oreille 20a susceptible d'être disposée dans un plan perpendiculaire par rapport au plan général de la deuxième partie 20. Cette oreille 20a est percée d'une ouverture 24 traversante, formant la portion femelle de la charnière et dimensionnée pour s'adapter à la portion mâle de la première partie 14. La deuxième partie 20 de la charnière peut donc être engagée sur la première partie 14, permettant la rotation de l'une des parties par rapport à l'autre, selon l'axe de rotation de la charnière.The second part 20 of the hinge is particularly illustrated on the figure 5 . It is integral with the element 12, articulated on the box 10. The second part 20 of the hinge comprises an ear 20a capable of being disposed in a plane perpendicular to the general plane of the second part 20. This ear 20a is pierced with a through opening 24, forming the female portion of the hinge and dimensioned to adapt to the male portion of the first part 14. The second part 20 of the hinge can therefore be engaged on the first part 14, allowing the rotation of one of the parts relative to the other, along the axis of rotation of the hinge.

Naturellement, le dégagement autour de la portion mâle et le dimensionnement de l'oreille 20a autour de l'ouverture 24 permettent le déplacement relatif de la première partie 14 par rapport à la deuxième 20.Naturally, the clearance around the male portion and the dimensioning of the ear 20a around the opening 24 allow the relative displacement of the first part 14 relative to the second 20.

Au niveau de la paroi de l'ouverture 24, la portion femelle reçoit des deuxièmes cavités 26, de préférence de forme oblongue, disposées parallèlement à l'axe de la charnière.At the wall of the opening 24, the female portion receives second cavities 26, preferably of oblong shape, arranged parallel to the axis of the hinge.

Pour définir les positions indexées, la charnière comprend, en outre, un organe élastique 30 intercalé entre la première 14 et la deuxième 20 parties. Plus particulièrement, selon l'exemple, l'organe élastique 30 est porté par la première partie 14 et est logé notamment dans les premières cavités 22 de la tige 18.To define the indexed positions, the hinge further comprises an elastic member 30 interposed between the first 14 and the second 20 parts. More particularly, according to the example, the elastic member 30 is carried by the first part 14 and is housed in particular in the first cavities 22 of the rod 18.

Dans le mode de réalisation préféré illustré sur les figures, l'organe élastique 30 est de type ressort agrafe (fig. 6) présentant des branches 30a élastiques reliées entre elles par une base. Les branches sont symétriques par rotation autour de l'axe de rotation de la charnière et sont susceptibles d'être déformées dans un plan de déformation contenant la branche et l'axe de rotation. Les cavités 22 et 26 sont oblongues et orientées parallèlement à l'axe de rotation de la charnière, afin de recevoir les branches 30a de l'organe élastique 30. De manière préférée, le ressort agrafe comprend deux branches 30a.In the preferred embodiment illustrated in the figures, the elastic member 30 is of the clip spring type ( Fig. 6 ) having elastic branches 30a connected together by a base. The branches are symmetrical by rotation about the axis of rotation of the hinge and are capable of being deformed in a deformation plane containing the branch and the axis of rotation. The cavities 22 and 26 are oblong and oriented parallel to the axis of rotation of the hinge, in order to receive the branches 30a of the elastic member 30. Preferably, the clip spring comprises two branches 30a.

La base du ressort agrafe est disposée solidairement dans un logement que comporte le deuxième bras 14b, au niveau des ouvertures débouchantes 14c de manière à ce que les branches 30a sortent de la première partie 14 en prenant place, au moins partiellement, dans les premières cavités 22 de la portion mâle. Les branches 30a sont maintenues en translation selon l'axe de rotation de la charnière mais elles sont susceptibles de se déformer dans le plan de déformation susmentionné, passant par les premières cavités 22.The base of the clip spring is disposed integrally in a housing that comprises the second arm 14b, at the level of the through openings 14c so that the branches 30a come out of the first part 14 taking place, at least partially, in the first cavities 22 of the male portion. The branches 30a are kept in translation along the axis of rotation of the hinge but they are liable to deform in the above-mentioned deformation plane, passing through the first cavities 22.

L'organe élastique 30, et notamment ses branches 30a, est agencé de manière à :

  • être en position de repos dans un logement formé par la coopération des premières cavités 22 et des deuxièmes cavités 26, lorsque la charnière est dans une position indexée,
  • être contraint dans un logement formé par les cavités d'une seule des première 14 et deuxième 20 parties, lorsque la charnière est entre deux positions indexées.
The elastic member 30, and in particular its branches 30a, is arranged so as to:
  • be in the rest position in a housing formed by the cooperation of the first cavities 22 and the second cavities 26, when the hinge is in an indexed position,
  • be constrained in a housing formed by the cavities of only one of the first 14 and second 20 parts, when the hinge is between two indexed positions.

Ainsi, comme on peut le voir sur la figure 5, la charnière équipant une montre selon l'invention fonctionne de la manière suivante. Dans les positions indexées, qui correspondent à des positions relatives prédéfinies pour la boîte 10 et l'élément 12 mobile, par exemple une position fermée et une position ouverte (à 90° environ), les premières cavités 22 de la première partie 14 et les deuxièmes cavités 26 de la deuxième partie 20 sont disposées en regard l'une de l'autre et forment ensemble le logement dans lequel prend place les branches 30a de l'organe élastique 30. Dans cette position, les branches 30a sont positionnées à l'interface entre la première 14 et la deuxième partie 20, au moins partiellement dans les premières cavités 22 et dans les deuxièmes cavités 26. De la sorte, les branches 30a de l'organe élastique 30 s'opposent à la libre rotation relative d'une partie de la charnière par rapport à l'autre.So, as we can see on the figure 5 , the hinge fitted to a watch according to the invention operates in the following manner. In the indexed positions, which correspond to predefined relative positions for the box 10 and the movable element 12, for example a closed position and an open position (at approximately 90 °), the first cavities 22 of the first part 14 and the second cavities 26 of the second part 20 are arranged opposite one another and together form the housing in which takes place the branches 30a of the elastic member 30. In this position, the branches 30a are positioned at interface between the first 14 and the second part 20, at least partially in the first cavities 22 and in the second cavities 26. In this way, the branches 30a of the elastic member 30 oppose the free relative rotation of a part of the hinge relative to the other.

En exerçant une force suffisante sur la boîte 10 ou sur l'élément 12 mobile, tendant à obtenir une rotation relative de l'un par rapport à l'autre, un utilisateur exerce indirectement une contrainte sur les branches 30a. Celles-ci se déforment élastiquement en se rapprochant l'une de l'autre dans le plan de déformation, selon les flèches F1 de la figure 3. Les premières cavités 22 de la première partie 14 sont dimensionnées de manière à ce que les branches 30a puissent y prendre place entièrement, laissant ainsi libre, en dehors des frottements, la rotation relative des première 14 et deuxième 20 parties, autour de l'axe de la charnière. En d'autres termes, la profondeur des premières cavités est plus grande que la section des branches 30a, prise dans le plan de déformation des branches. L'utilisateur peut alors manœuvrer l'élément mobile 12, jusqu'à atteindre la position indexée suivante, dans laquelle l'organe élastique 30 se détend et prend place à nouveau à l'interface des première 14 et deuxième 20 parties.By exerting sufficient force on the box 10 or on the movable element 12, tending to obtain a relative rotation of one with respect to the other, a user indirectly exerts a stress on the branches 30a. These deform elastically as they approach each other in the deformation plane, according to the arrows F1 of the figure 3 . The first cavities 22 of the first part 14 are dimensioned so that the branches 30a can take their place there entirely, thus leaving free, apart from friction, the relative rotation of the first 14 and second 20 parts, around the axis of the hinge. In other words, the depth of the first cavities is greater than the section of the branches 30a, taken in the plane of deformation of the branches. The user can then maneuver the movable element 12, until reaching the next indexed position, in which the elastic member 30 relaxes and takes place again at the interface of the first 14 and second 20 parts.

La raideur de l'organe élastique 30 est de préférence suffisante pour que les positions indexées soient stables, c'est-à-dire que le poids de la montre ou de l'élément 12 mobile, éventuellement avec l'inertie d'un déplacement modéré, ne parvienne à faire sortir l'organe élastique 30 du logement formé par les cavités des première 14 et deuxième 20 parties.The stiffness of the elastic member 30 is preferably sufficient for the indexed positions to be stable, that is to say that the weight of the watch or of the movable element 12, possibly with the inertia of a displacement moderate, fails to get the elastic member 30 out of the housing formed by the cavities of the first 14 and second 20 parts.

Pour favoriser la mise en contrainte des branches 30a de l'organe élastique 30 et éviter des points durs ou des blocages, on peut avantageusement prévoir que la portion femelle comprenne une portion conique 24a du côté du deuxième bras 14b de la première partie 14, le diamètre de la portion conique 24a diminuant en s'éloignant dudit deuxième bras 14b. Ainsi, la sortie des positions indexées est plus douce, et l'actionnement de la boîte 10 ou de l'élément 12 mobile entre deux positions indexées est également plus souple, étant donné que les frottements intervenants dans ces déplacements sont limités au tronc de cône de la portion conique 24a.To favor the stressing of the branches 30a of the elastic member 30 and avoid hard spots or blockages, it is advantageous to provide that the female portion comprises a conical portion 24a on the side of the second arm 14b of the first part 14, the diameter of the conical portion 24a decreasing away from said second arm 14b. Thus, the output from the indexed positions is smoother, and the actuation of the box 10 or of the movable element 12 between two indexed positions is also more flexible, since the friction involved in these movements is limited to the truncated cone of the conical portion 24a.

Dans le mode de réalisation illustré en exemple, la portion mâle comprend deux cavités 22 diamétralement opposées, et la portion femelle comprend quatre cavités 26, diamétralement opposées deux à deux, et formant ainsi des paires. Le nombre de paires de cavités diamétralement opposées, définit le nombre n de positions indexées.In the embodiment illustrated as an example, the male portion comprises two cavities 22 diametrically opposite, and the female portion comprises four cavities 26, diametrically opposite in pairs, and thus forming pairs. The number of pairs of diametrically opposite cavities defines the number n of indexed positions.

L'homme du métier pourra adapter le contenu de la présente description à un élément 12 mobile choisi parmi les éléments suivants : un couvercle, un élément décoratif ou une deuxième boîte de montre. Sans difficulté particulière, on pourra également disposer deux éléments mobiles, relativement à une boîte 10 centrale, les éléments mobiles étant disposés en regard des faces opposées de la boîte 10, c'est-à-dire l'une côté fond et l'autre côté cadran.Those skilled in the art can adapt the content of this description to a mobile element 12 chosen from the following elements: a cover, a decorative element or a second watch case. Without particular difficulty, we can also have two mobile elements, relative to a central box 10, the movable elements being arranged opposite the opposite faces of the box 10, that is to say one on the back side and the other dial side.

Le principe de charnière intégrant un système d'indexage, tel que proposé ci-dessus peut être appliqué en mettant en œuvre une paire de charnières, disposées de manière à ce que leurs axes respectifs soient alignés ou au moins parallèles. Par paire de charnières, on entend deux charnières distinctes, mettant en œuvre deux pièces mâles distinctes. De préférence, les positions indexées de chaque charnière sont prévues pour correspondre aux mêmes positions relatives de la boîte 10 et de l'élément mobile 12, mais elles peuvent aussi être décalées angulairement, afin d'offrir plus de positions intermédiaires, sans être tributaire des difficultés liées au peu d'espace disponible à l'interface des première et deuxième parties pour multiplier le nombre de cavités.The hinge principle incorporating an indexing system, as proposed above can be applied by implementing a pair of hinges, arranged so that their respective axes are aligned or at least parallel. By pair of hinges is meant two separate hinges, implementing two separate male parts. Preferably, the indexed positions of each hinge are provided to correspond to the same relative positions of the box 10 and the movable element 12, but they can also be offset angularly, in order to offer more intermediate positions, without being dependent on the difficulties linked to the limited space available at the interface of the first and second parts to multiply the number of cavities.

Dans un tel cas, pour le montage, on peut monter les charnières séparément sur l'élément mobile 12 et ensuite les fixer respectivement sur la boîte 10.In such a case, for mounting, the hinges can be mounted separately on the movable element 12 and then fix them respectively on the box 10.

Le principe peut aussi être appliqué sur une charnière double, c'est-à-dire avec deux portions mâles s'étendant de part et d'autre du bras du premier élément 12, les deux portions mâles étant alignées. On pourra alors adapter le bras de manière à ce que les organes ressorts y soient logés par son extrémité libre par exemple. Pour l'assemblage des éléments dans cette configuration, on pourra prévoir d'avoir deux parties mobiles distinctes, pouvant être assemblées séparément sur les portions mâles.The principle can also be applied to a double hinge, that is to say with two male portions extending on either side of the arm of the first element 12, the two male portions being aligned. We can then adapt the arm so that the spring members are housed there by its free end for example. For the assembly of the elements in this configuration, provision may be made for having two separate movable parts, which can be assembled separately on the male portions.

Particulièrement pour la configuration qui vient d'être mentionnée, mais également de manière générale, on pourra prévoir d'avoir une construction inversée, c'est-à-dire d'avoir l'organe élastique 30 monté sur la deuxième partie 20, avec l'organe élastique 30 qui se déforme en s'écartant entre deux positions indexées, l'organe élastique étant précontraint en pincement. Dans ce cas, les paires de deuxièmes cavités 26 définissant le nombre de positions indexées, sont disposées sur la portion mâle, et les premières cavités 22 dans lesquelles les branches de l'organe élastique 30 sont logées entre deux positions indexées, sont celles de la deuxième partie 20.Particularly for the configuration which has just been mentioned, but also in general, provision may be made for having an inverted construction, that is to say having the elastic member 30 mounted on the second part 20, with the elastic member 30 which deforms by deviating between two indexed positions, the elastic member being prestressed by pinching. In this case, the pairs of second cavities 26 defining the number of indexed positions are arranged on the male portion, and the first cavities 22 in which the branches of the elastic member 30 are housed between two indexed positions, are those of the second part 20.

Ainsi est proposée une montre dotée d'une boîte 10 et d'un élément mobile 12 articulé sur la boîte au moyen d'une charnière, permettant d'obtenir des positions indexées entre la boîte 10 et l'élément mobile 12 de manière particulièrement avantageuse, avec seulement un organe élastique 30 intercalé entre les éléments habituels d'une charnière. L'enseignement de la présente description, donnée à titre d'exemple non limitatif, pourra être adapté aux besoins de l'homme du métier, sans toutefois sortir du cadre de l'invention tel que défini par les revendications.Thus, a watch is provided with a box 10 and a mobile element 12 articulated on the box by means of a hinge, making it possible to obtain indexed positions between the box 10 and the mobile element 12 in a particularly advantageous manner. , with only an elastic member 30 interposed between the usual elements of a hinge. The teaching of this description, given by way of nonlimiting example, may be adapted to the needs of those skilled in the art, without however departing from the scope of the invention as defined by the claims.

Claims (8)

  1. Watch comprising a case (10) housing a watch movement, and an element (12) articulated to the case by means of an indexed-positioned hinge, the said hinge defining an axis of rotation and comprising:
    - a first part (14) secured to the case (10), and
    - a second part (20) secured to the element (12), the said parts being rotationally mobile relative to one another about the axis of rotation of the hinge,
    characterized in that the one of the parts comprises a shaft (18) positioned along the said axis and in that the other part is engaged on the said shaft (18), and
    characterized in that, in order to define the said indexed positions, the hinge further comprises an elastic member (30) interposed between the said parts and borne by one of them, the first part (14) comprising first cavities and the second part (20) comprising second cavities, the said first and second cavities being formed in such a way as to be able to collaborate with one another so as together to form a housing when they are positioned facing one another, and
    in that the elastic member (30) is arranged in such a way as to
    - be in a position of rest in a housing formed by the collaboration of the cavities of the first (14) and second (20) parts when the hinge is in an indexed position,
    - be under stress in a housing formed by the cavities of just one of the first and second parts, when the hinge is between two indexed positions.
  2. Watch according to Claim 1, characterized in that the elastic member (30) is of the spring clip type having elastic legs (30a) connected to one another by a base, the said legs being symmetric by rotation about the axis of rotation of the hinge and being able to be deformed in a plane comprising the leg and the axis of rotation, and in that the said cavities are oblong and oriented parallel to the axis of rotation of the hinge.
  3. Watch according to one of the preceding claims, characterized in that the first part (14) secured to the case (10) comprises the said shaft (18) and in that the second part (20) secured to the element (12) comprises a female portion of the hinge, collaborating with the shaft (18).
  4. Watch according to the combination of Claims 2 and 3, characterized in that the first part (14) comprises an arm (14b) and in that the male portion projects from the said arm, the base of the clip being positioned in a housing comprised by the arm and the legs of the clip are positioned at least partially in the cavities formed at the periphery of the male portion.
  5. Watch according to Claim 4, characterized in that the said female portion comprises a conically tapering portion (24a) on the side of the said arm, the diameter of the conically tapering portion decreasing with increasing distance away from the arm (14b).
  6. Watch according to one of Claims 2 to 5, characterized in that the spring clip comprises two legs (30a) .
  7. Watch according to Claim 6 when dependent on Claim 5, characterized in that the male portion comprises two diametrically opposite cavities (22), and in that the female portion comprises n pairs of diametrically opposite cavities (26), n being the number of indexed positions.
  8. Watch according to one of the preceding claims, characterized in that the said element (12) is chosen from one of the following elements: a cover, a decorative element, or a second watch case.
EP17192313.9A 2016-09-22 2017-09-21 Watch with indexed hinge Active EP3309627B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01232/16A CH712942A1 (en) 2016-09-22 2016-09-22 Watch comprising an element articulated on its box.

Publications (2)

Publication Number Publication Date
EP3309627A1 EP3309627A1 (en) 2018-04-18
EP3309627B1 true EP3309627B1 (en) 2019-12-18

Family

ID=57120967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17192313.9A Active EP3309627B1 (en) 2016-09-22 2017-09-21 Watch with indexed hinge

Country Status (2)

Country Link
EP (1) EP3309627B1 (en)
CH (1) CH712942A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR40537E (en) * 1930-12-08 1932-07-22 Jaeger Ets Ed Improvement in so-called soap watch cases
US2636338A (en) * 1951-02-15 1953-04-28 I D Watch Case Co Inc Watchcase with cover
JP2004101286A (en) * 2002-09-06 2004-04-02 Seiko Instruments Inc Mobile device with opening/closing lid and watch exterior assembly for mobile watch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CH712942A1 (en) 2018-03-29
EP3309627A1 (en) 2018-04-18

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