EP2290477B1 - Assembly for fixing the peripheral end of the hairspring of a device with balance wheel-hairspring for a timepiece - Google Patents

Assembly for fixing the peripheral end of the hairspring of a device with balance wheel-hairspring for a timepiece Download PDF

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Publication number
EP2290477B1
EP2290477B1 EP09168602.2A EP09168602A EP2290477B1 EP 2290477 B1 EP2290477 B1 EP 2290477B1 EP 09168602 A EP09168602 A EP 09168602A EP 2290477 B1 EP2290477 B1 EP 2290477B1
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EP
European Patent Office
Prior art keywords
balance
spring
stud
channel
hairspring
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EP09168602.2A
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German (de)
French (fr)
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EP2290477A1 (en
Inventor
Christian Schmiedchen
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Glashuetter Uhrenbetrieb GmbH
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Glashuetter Uhrenbetrieb GmbH
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Priority to EP09168602.2A priority Critical patent/EP2290477B1/en
Priority to US12/854,689 priority patent/US8297833B2/en
Priority to CN201010267323.9A priority patent/CN101995811B/en
Priority to JP2010188243A priority patent/JP5249292B2/en
Publication of EP2290477A1 publication Critical patent/EP2290477A1/en
Priority to HK11110176.2A priority patent/HK1155823A1/en
Application granted granted Critical
Publication of EP2290477B1 publication Critical patent/EP2290477B1/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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
    • 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
    • G04B18/00—Mechanisms for setting frequency
    • G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
    • G04B18/023—Regulator or adjustment devices; Indexing devices, e.g. raquettes with means for fine adjustment of the indexing device

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

L'invention concerne un ensemble de fixation de l'extrémité extérieure du spiral d'un dispositif à balancier-spiral pour pièce d'horlogerie. Elle concerne également un dispositif à balancier-spiral correspondant pour pièce d'horlogerie, ainsi que la pièce d'horlogerie associée.The invention relates to a fastening assembly for the outer end of the spiral of a sprung balance device for a timepiece. It also relates to a corresponding sprung balance device for a timepiece, as well as the associated timepiece.

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

Dans une montre mécanique, il est d'usage d'utiliser un organe régulateur comportant un dispositif à balancier-spiral. De façon classique, l'extrémité interne du spiral est fixée à une virole prévue sur l'axe de pivotement du balancier. Afin de fixer et positionner l'extrémité extérieure du spiral, il est connu d'utiliser un porte-piton logeant un piton, en association avec une vis de serrage permettant de serrer le piton contre la portion du spiral engagée dans le porte-piton. Dans un tel ensemble, le porte-piton est classiquement fixé à un coq servant également à fixer une des extrémités de l'axe du balancier. En pratique, lors du montage et/ou du réglage, les manipulations à effectuer avec ces différents éléments sont délicates, car l'accès est restreint et les pièces sont de très petites dimensions. En outre, avec de telles configurations, il est courant que la vis de serrage du spiral ou le porte-piton se détache, et/ou soit perdu lors d'une manipulation telle que l'ajustement de la longueur active du spiral.In a mechanical watch, it is customary to use a regulating member comprising a sprung balance device. Conventionally, the inner end of the hairspring is fixed to a ferrule provided on the axis of pivoting of the balance. In order to fix and position the outer end of the hairspring, it is known to use a peg holder housing a pin, in combination with a clamping screw for tightening the bolt against the portion of the hairspring engaged in the bolt carrier. In such an assembly, the bolt carrier is conventionally attached to a cock also serving to fix one end of the axis of the balance. In practice, during assembly and / or adjustment, the manipulations to be performed with these various elements are delicate because access is restricted and the parts are very small. In addition, with such configurations, it is common for the spiral clamping screw or peg holder to come loose, and / or be lost during handling such as adjusting the active length of the hairspring.

Un ensemble de fixation de l'extrémité extérieure du spiral d'un dispositif à balancier-spiral de l'art antérieur est par exemple décrit dans le document JP 52 082453 .An assembly for fixing the outer end of the spiral of a sprung balance device of the prior art is for example described in the document JP 52 082453 .

EXPOSE DE L'INVENTIONSUMMARY OF THE INVENTION

Pour éviter de tels inconvénients, notamment pour faciliter la mise en place et les ajustements de la longueur active du spiral et ainsi minimiser les manipulations délicates à effectuer, l'invention prévoit divers moyens.To avoid such drawbacks, in particular to facilitate the introduction and adjustments of the active length of the hairspring and thus minimize the delicate manipulations to be performed, the invention provides various means.

L'invention prévoit tout d'abord un ensemble de fixation de l'extrémité extérieure du spiral d'un dispositif à balancier-spiral pour pièce d'horlogerie tel que défini par la revendication 1 du brevet.The invention firstly provides a fastening assembly of the outer end of the spiral of a sprung balance device for a timepiece as defined by claim 1 of the patent.

Un tel dispositif permet de faciliter la mise en place et l'ajustement de la longueur active du spiral. Cette facilité de manipulation permet par ailleurs l'obtention d'un ajustement plus fin de la longueur active.Such a device makes it easier to set up and adjust the active length of the hairspring. This ease of handling also makes it possible to obtain a finer adjustment of the active length.

L'invention prévoit également un dispositif à balancier-spiral pour pièce d'horlogerie tel que défini par la revendication 6 du brevetThe invention also provides a sprung balance device for a timepiece as defined by claim 6 of the patent

Selon l'invention, la vis de serrage comporte un pointeau prévu dans le prolongement du corps fileté, à l'opposée de la tête de vis, et le piton comporte un logement dans lequel le pointeau est susceptible d'être inséré.According to the invention, the clamping screw comprises a needle provided in the extension of the threaded body, opposite the screw head, and the stud has a housing in which the needle is insertable.

Le taraudage du porte-piton est de préférence orienté selon un axe sensiblement radial par rapport à l'axe de virole, et pratiqué du côté éloigné du canal par rapport à l'axe de la virole, la face d'appui du canal étant prévue sensiblement en face du taraudage.The tapping of the bolt carrier is preferably oriented along a substantially radial axis with respect to the ferrule axis, and made on the side remote from the channel relative to the axis of the ferrule, the bearing face of the channel being provided substantially opposite the tapping.

Selon encore un mode de réalisation avantageux, le canal de fixation du spiral est convexe, avec un centre de courbure sensiblement correspondant à l'axe du spiral. Grâce à cette caractéristique, les rayons de courbure de la portion de spiral à fixer et du canal sont sensiblement correspondants, pour un assemblage plus aisé et plus précis.According to yet another advantageous embodiment, the hanger of the hairspring is convex, with a center of curvature substantially corresponding to the axis of the hairspring. With this feature, the radii of curvature of the spiral portion to be fixed and the channel are substantially corresponding, for easier assembly and more accurate.

Dans une variante, le piton est pourvu d'un patin anti-frottement disposé sur la face du piton prévue pour coopérer avec le spiral. La présence d'un tel élément permet de faciliter le glissement longitudinal et l'ajustement du spiral.In a variant, the stud is provided with an anti-friction pad disposed on the face of the stud designed to cooperate with the hairspring. The presence of such an element makes it possible to facilitate the longitudinal sliding and the adjustment of the hairspring.

L'invention prévoit par ailleurs une montre comportant un ensemble de fixation tel que préalablement présenté.

  • L'invention prévoit également un procédé de fixation de l'extrémité périphérique d'un spiral dans un dispositif à balancier-spiral pour pièce d'horlogerie comportant un porte-piton fixé à un coq tel que défini par la revendication 8 du brevet.
The invention furthermore provides a watch comprising an attachment assembly as previously presented.
  • The invention also provides a method of fixing the peripheral end of a hairspring in a sprung balance device for a timepiece comprising a peg holder fixed to a cock as defined by claim 8 of the patent.

DESCRIPTION DES FIGURESDESCRIPTION OF THE FIGURES

Tous les détails de réalisation sont donnés dans la description qui suit, complétée par les figures 1 et 2, présentées uniquement à des fins d'exemples non limitatifs, dans lesquelles des références identiques indiquent des éléments similaires, et dans lesquelles:

  • La figure 1 est une vue de dessus montrant un dispositif balancier-spiral dont l'axe est fixé à un coq sur lequel est prévu un porte-piton;
  • La figure 2 est une coupe axiale du porte-piton de la figure 1.
All the details of realization are given in the description which follows, completed by the Figures 1 and 2 , presented solely for the purpose of non-limiting examples, in which like references indicate like elements, and in which:
  • The figure 1 is a top view showing a sprung-balance device whose axis is fixed to a cock on which is provided a bolt carrier;
  • The figure 2 is an axial section of the doorpost of the figure 1 .

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

La figure 1 illustre une vue d'un dispositif à balancier-spiral pour pièce d'horlogerie, montrant le coq 5 servant classiquement au pivotement d'une des extrémités de l'axe A de balancier 6. L'autre extrémité de l'axe A de balancier est pivotée sur la platine, de façon classique. Egalement de façon conventionnelle, une virole 4 est chassée sur l'axe du balancier et permet la fixation de la portion centrale du spiral 1.The figure 1 illustrates a view of a sprung balance device for a timepiece, showing the cock 5 conventionally used to pivot one of the ends of the balance shaft A 6. The other end of the balance shaft A is pivoted on the plate, in a conventional manner. Also conventionally, a shell 4 is driven on the axis of the balance and allows the attachment of the central portion of the hairspring 1.

Le coq 5 sert par ailleurs de support à un porte-piton 2 destiné à la fixation de l'extrémité extérieure du spiral 1. Le coq 5 supporte aussi une raquette 8, prévue pour coopérer avec la spire extérieure du spiral 1, en amont de l'extrémité à fixer.The cock 5 also serves as a support for a stud holder 2 for fixing the outer end of the hairspring 1. The cock 5 also supports a racket 8, provided to cooperate with the outer turn of the hairspring 1, upstream of the end to fix.

Dans l'exemple illustré aux figures 1 et 2, le porte-piton 2 se prolonge radialement par rapport à l'axe du balancier 6, vers les spires extérieures du spiral. Le positionnement angulaire du porte-piton 2 est prévu de façon à permettre la fixation de l'extrémité extérieure libre du spiral 1. Un canal 3, de forme convexe, avec un centre de courbure prévu au niveau de l'axe du balancier 6, est prévu dans le porte-piton 2. La forme convexe du canal 3 est adaptée au profil de la zone du spiral à fixer, pour faciliter son insertion. Le côté du canal 3 éloigné de l'axe du balancier 6 est percé par un trou taraudé 14 prévu radialement et traversant ledit côté. Le trou taraudé 14 sert de logement et de moyen de positionnement pour une vis de serrage 11. Cette vis 11 comporte un corps fileté 12, permettant ce positionnement par vissage, grâce au filetage 13 du corps 12 coopérant avec le filetage interne correspondant du trou taraudé 14.In the example shown in Figures 1 and 2 , the bolt carrier 2 extends radially with respect to the axis of the balance 6, towards the outer turns of the spiral. The angular positioning of the bolt carrier 2 is provided so as to allow the attachment of the free outer end of the hairspring 1. A convex channel 3, with a center of curvature provided at the axis of the balance 6, is provided in the stud holder 2. The convex shape of the channel 3 is adapted to the profile of the spiral area to be fixed, to facilitate its insertion. The side of the channel 3 remote from the axis of the balance 6 is pierced by a tapped hole 14 provided radially and passing through said side. The tapped hole 14 serves as a housing and positioning means for a clamping screw 11. This screw 11 comprises a threaded body 12, allowing this positioning by screwing, thanks to the thread 13 of the body 12 cooperating with the corresponding internal thread of the tapped hole 14.

Le canal 3 permet de loger au moins une portion du piton 10. Le piton est prévu mobile radialement et latéralement dans le canal 3. Un tel montage mobile permet de fixer l'extrémité du spiral 1 par serrage et de réaliser son positionnement précis dans le canal, de façon à régler la longueur active du spiral. Le piton 10 comporte une forme adaptée à celle du canal 3 et à celle du spiral 1, de façon à offrir une bonne surface de contact entre le piton et la face adjacente du spiral.The channel 3 makes it possible to accommodate at least a portion of the peak 10. The peak is provided radially movable and laterally in the channel 3. Such a movable assembly makes it possible to fix the end of the spring 1 by clamping and to realize its precise positioning in the channel, so as to adjust the active length of the hairspring. The stud 10 has a shape adapted to that of the channel 3 and that of the spiral 1, so as to provide a good contact surface between the stud and the adjacent face of the spiral.

Le piton 10 est maintenu en place dans le canal 3 par la vis 11 de serrage et d'ajustement. Cette vis offre une double fonction: elle permet d'assurer le maintien en place du piton 10 dans le canal 3 avant le serrage du spiral et d'ajuster le taux ou niveau de serrage du spiral 1, en permettant de pousser le spiral contre une face d'appui 7 du canal 3. Dans l'exemple illustré, en vissant la vis 11, le piton 10 est repoussé contre la face d'appui 7, suivant une force déterminée par le taux de serrage/desserrage de la vis 11. En dévissant la vis 11, la force de serrage s'atténue jusqu'à ce que le spiral soit libre de coulisser dans le canal 3, en fonction du niveau de desserrage.The stud 10 is held in place in the channel 3 by the screw 11 for tightening and adjustment. This screw has a dual function: it makes it possible to keep the piton 10 in position in the channel 3 before clamping the hairspring and to adjust the level or level of tightening of the hairspring 1, by making it possible to push the hairspring against a bearing face 7 of the channel 3. In the example illustrated, by screwing the screw 11, the stud 10 is pushed against the bearing face 7, according to a force determined by the tightening / loosening rate of the screw 11. By unscrewing the screw 11, the clamping force decreases until the hairspring is free to slide in the channel 3, depending on the looseness level.

La fonction de maintien du piton 10 par la vis de serrage 11 est assurée par un pointeau 15 prévu dans le prolongement du corps fileté 12 de la vis. Un logement 16, prévu dans le piton 10, du coté opposé à celui prévu pour entrer en contact avec le spiral, permet l'insertion du pointeau 15.The function of holding the pin 10 by the clamping screw 11 is provided by a needle 15 provided in the extension of the threaded body 12 of the screw. A housing 16, provided in the stud 10, on the opposite side to that intended to come into contact with the hairspring, allows the insertion of the needle 15.

Grâce à cette liaison entre le piton 10 et la vis 11, qui par l'intermédiaire du pointeau 15 pénètre librement dans le logement 16, le piton 10 peut être aisément maintenu dans le canal 3 sans risquer d'être perdu. Ainsi, l'horloger peut se concentrer sur le positionnement de la spire extérieure du spiral 3 sur le porte piton avant le serrage de la vis sans se soucier de perdre le piton et/ou la vis. Cette configuration permet donc un montage sûr et rapide.Thanks to this connection between the pin 10 and the screw 11, which through the needle 15 freely enters the housing 16, the pin 10 can be easily maintained in the channel 3 without the risk of being lost. Thus, the watchmaker can focus on the positioning of the outer coil of the spiral 3 on the door bolt before tightening the screw without worrying about losing the stud and / or the screw. This configuration allows a safe and fast assembly.

Le pointeau 15 est aménagé en continuité du corps fileté 12, les deux éléments formant de préférence une seule et même pièce, obtenue par exemple par usinage ou par tout autre moyen de fabrication permettant d'obtenir un niveau de précision en adéquation avec ce type de mécanisme.The needle 15 is arranged in continuity with the threaded body 12, the two elements preferably forming a single piece, obtained for example by machining or by any other manufacturing means to obtain a level of accuracy in line with this type of mechanism.

Le piton 10 illustré à la figure 2 porte un joint anti-frottement 18 ou patin, permettant de faire glisser le spiral 1 avec aisance lorsque le piton n'est pas serré contre la face d'appui 7 par la vis 11. Les ajustements précis de la position de fixation du spiral sont alors faciles à réaliser. Bien que non représenté sur la figure, il est possible de prévoir un patin du côté opposé, soit contre la face d'appui 7 à la place ou en plus du patin 18 disposé sur le piton.The piton 10 illustrated at figure 2 carries an anti-friction seal 18 or pad, making it possible to slide the hairspring 1 with ease when the peg is not tight against the bearing face 7 by the screw 11. The precise adjustments of the position of attachment of the hairspring are then easy to achieve. Although not shown in the figure, it is possible to provide a pad on the opposite side, or against the bearing face 7 instead of or in addition to the pad 18 disposed on the peak.

Pour mettre en oeuvre le dispositif de l'invention on procède de la façon suivante :

  • On dispose le piton 10 dans le canal 3.
  • On aligne ensuite le logement 16 du piton 10 avec le trou taraudé 14.
  • On dispose l'extrémité extérieure du spiral dans ledit canal, radialement intérieurement par rapport au piton.
  • On insère la vis de serrage dans ledit taraudage de façon à permettre l'insertion du pointeau 15 dans le logement 16 et de façon à permettre un coulissement latéral de l'extrémité extérieure du spiral dans le canal 3.
  • On ajuste la position latérale de l'extrémité du spiral dans son emplacement de fixation de façon à régler la longueur active du spiral et on serre complètement la vis de serrage de façon à empêcher tout coulissement latéral de l'extrémité du spiral dans le canal.
To implement the device of the invention, the procedure is as follows:
  • Piton 10 is placed in channel 3.
  • The housing 16 of the stud 10 is then aligned with the tapped hole 14.
  • It has the outer end of the hairspring in said channel, radially inwardly relative to the peak.
  • The clamping screw is inserted into said tapping so as to allow the needle 15 to be inserted into the housing 16 and to allow lateral sliding of the outer end of the spiral in the channel 3.
  • The lateral position of the end of the hairspring is adjusted in its attachment location so as to adjust the active length of the hairspring and the clamping screw is fully tightened so as to prevent any lateral sliding of the hairspring end into the channel.

Pour insérer la portion d'extrémité extérieure du spiral 1 dans le canal 3 ou pour modifier sa position longitudinale dans le canal, la vis 11 de serrage est tournée de façon à ce que le piton 10 dégage l'espace prévu pour le spiral dans le canal 3. Le spiral est ensuite placé et/ou sa position longitudinale ajustée. Pour assurer un maintien de cette position, la vis 11 est tournée de façon à pousser le piton 10 contre le spiral qui se trouve bloqué par la face d'appui 7, jusqu'à obtention d'un serrage suffisant pour éviter tout glissement du spiral dans le canal.To insert the outer end portion of the hairspring 1 into the channel 3 or to modify its longitudinal position in the channel, the tightening screw 11 is rotated so that the pin 10 releases the space provided for the hairspring in the channel. channel 3. The hairspring is then placed and / or its longitudinal position adjusted. To maintain this position, the screw 11 is rotated so as to push the pin 10 against the hairspring which is blocked by the bearing face 7, until a sufficient tightening is obtained to prevent any slipping of the hairspring. in the channel.

Les figures et leurs descriptions faites ci-dessus illustrent l'invention plutôt qu'elles ne la limitent. En particulier, l'invention et ses différentes variantes viennent d'être décrites en relation avec un exemple particulier comportant un piton occupant toute la largeur du canal 3 et une vis de serrage 11 avec une position axiale par rapport au porte-piton 2. Néanmoins, il est évident pour un homme du métier que l'invention, qui est définie par les revendications annexées, peut être étendue à d'autres modes de réalisation dans lesquels le piton est configuré autrement, et/ou la vis de serrage prévue dans une autre position par rapport à l'axe du porte-piton.The figures and their descriptions made above illustrate the invention rather than limiting it. In particular, the invention and its various variants have just been described in connection with a particular example having a peak occupying the entire width of the channel 3 and a clamping screw 11 with an axial position relative to the bolt carrier 2. it is obvious to one skilled in the art that the invention, which is defined by the appended claims, may be extended to other embodiments in which the stud is otherwise configured, and / or the clamping screw provided in a other position relative to the axis of the bolt carrier.

Les signes de références dans les revendications n'ont aucun caractère limitatif. Les verbes "comprendre" et "comporter" n'excluent pas la présence d'autres éléments que ceux listés dans les revendications. Le mot "un" précédant un élément n'exclue pas la présence d'une pluralité de tels éléments.The reference signs in the claims are not limiting in nature. The verbs "to understand" and "to include" do not exclude the presence other elements than those listed in the claims. The word "a" preceding an element does not exclude the presence of a plurality of such elements.

Claims (7)

  1. Assembly for securing the peripheral end of the balance-spring (1) of a sprung balance device for a timepiece, including:
    - a balance-spring stud holder (2), secured to a balance-cock (5) and positioned to enable the outer end of the balance-spring (1) to be fixed in a channel (3) in the stud holder (2), and devised to house a stud (10) against which the balance-spring (1) can be locked;
    - a screw (11) for locking the balance-spring stud, which comprises a threaded body (12) for assembly inside an inner thread (14) of the stud holder that opens onto the channel (3) and which pushes the stud (10) towards a back face (7) of the channel (3) and allows the balance-spring (1) to be secured by insertion between the stud (10) and said back face (7) of the channel characterized in that the locking screw (11) having a tip (15) in the extension of the threaded body (12), at the opposite end to the screw head; characterized in that the stud (10) has a housing (16) arranged to be aligned with said inner thread (14), and into which the tip (15) can be inserted to allow the stud to be maintained in place in the channel before tightening the balance spring.
  2. Securing assembly according to claim 1, wherein the inner thread of the stud holder (14) is oriented along an approximately radial axis relative to the axis of the collet (4), and is made on the side furthest from the channel (3) relative to the collet axis, the back face (7) of the channel being approximately opposite the inner thread (14).
  3. Securing assembly according to any of the preceding claims, wherein the balance-spring stud (10) is provided with an anti-friction pad (18) arranged on the surface of the stud that cooperates with the balance-spring (1).
  4. Securing assembly according to any of the preceding claims, wherein the channel for securing the balance-spring (1) is convex, with a centre of curvature that approximately matches the axis of the balance-spring.
  5. Watch including a securing assembly according to any of claims 1 to 4.
  6. Sprung balance device for a timepiece including:
    • a balance-spring (1) capable of generating an oscillating movement in a balance (6) that is pivotably mounted on a balance staff;
    • a balance-cock (5) used as a support for one of the ends of the balance staff;
    • a collet (4) fixed the balance staff for securing the inner end of the balance-spring (1); said device being characterized in that it comprises a securing assembly for the peripheral end of the balance-spring according to any of claims 1 to 4.
  7. Method of securing the peripheral end of a balance-spring (1) in a sprung balance device for a timepiece including a balance-spring stud holder (2) secured to a balance-cock (5) and said stud holder being provided, on the one hand, with a channel (3) devised for housing a balance-spring stud (10) and, on the other hand, with an inner thread (14) that opens onto the channel (3), said method including the steps of:
    • arranging the balance-spring stud (10) in the channel (3), a housing (16) having previously been made in the stud,
    • aligning the housing (16) of the balance-spring stud (10) with the inner thread (14) of the stud holder (2);
    • inserting a locking screw (11) that has a tip (15) in the extension of the threaded body (12) at the opposite end to the screw head, in said inner thread (14);
    • arranging the peripheral end of the balance-spring (1) in said channel (3), radially inside the balance-spring stud (10);
    • partially tightening the screw (11) so as to allow insertion of the tip (15) in the housing (16) and so as to allow the outer end of the balance-spring to slide laterally in the channel (3);
    • adjusting the lateral position of the end of the balance-spring in its fixed place so as to regulate the active length of the balance-spring;
    • completely tightening the screw (11) so as to prevent any lateral sliding of the outer end of the balance-spring in the channel (3).
EP09168602.2A 2009-08-25 2009-08-25 Assembly for fixing the peripheral end of the hairspring of a device with balance wheel-hairspring for a timepiece Active EP2290477B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP09168602.2A EP2290477B1 (en) 2009-08-25 2009-08-25 Assembly for fixing the peripheral end of the hairspring of a device with balance wheel-hairspring for a timepiece
US12/854,689 US8297833B2 (en) 2009-08-25 2010-08-11 Assembly for securing the outer end of the balance-spring of a sprung balance device for a timepiece
CN201010267323.9A CN101995811B (en) 2009-08-25 2010-08-24 Assembly for fixing the peripheral end of the hairspring of device with balance wheel-hairspring for timepiece
JP2010188243A JP5249292B2 (en) 2009-08-25 2010-08-25 Assembling for the outer end of the balance wheel spring of the balance device with a spring for a watch
HK11110176.2A HK1155823A1 (en) 2009-08-25 2011-09-27 Assembly for securing the outer end of the balance-spring of a timepiece sprung balance device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09168602.2A EP2290477B1 (en) 2009-08-25 2009-08-25 Assembly for fixing the peripheral end of the hairspring of a device with balance wheel-hairspring for a timepiece

Publications (2)

Publication Number Publication Date
EP2290477A1 EP2290477A1 (en) 2011-03-02
EP2290477B1 true EP2290477B1 (en) 2014-06-11

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EP09168602.2A Active EP2290477B1 (en) 2009-08-25 2009-08-25 Assembly for fixing the peripheral end of the hairspring of a device with balance wheel-hairspring for a timepiece

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US (1) US8297833B2 (en)
EP (1) EP2290477B1 (en)
JP (1) JP5249292B2 (en)
CN (1) CN101995811B (en)
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US9151351B2 (en) * 2011-06-28 2015-10-06 Controls International, Inc. Adjustable fail-safe rotary spring operator with a retaining band
EP2876504B1 (en) 2013-11-20 2017-07-26 ETA SA Manufacture Horlogère Suisse Screwless clock stud holder
EP2876505B1 (en) 2013-11-20 2018-11-14 ETA SA Manufacture Horlogère Suisse Clock stud holder with screw
JP6710041B2 (en) * 2014-11-27 2020-06-17 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ Balancing spring fixing system
EP3037896B1 (en) * 2014-12-22 2017-05-10 ETA SA Manufacture Horlogère Suisse Detachable stud support
EP3037895B1 (en) * 2014-12-22 2017-09-20 ETA SA Manufacture Horlogère Suisse Detachable stud support
GB2539922B (en) * 2015-07-01 2017-07-19 Kinetrol Ltd Spring return device
EP3273310A1 (en) * 2016-07-20 2018-01-24 ETA SA Manufacture Horlogère Suisse Regulator key
GB2598095B (en) * 2020-08-10 2024-03-06 Kinetrol Ltd Spring return device
EP4006649A1 (en) * 2020-11-27 2022-06-01 ETA SA Manufacture Horlogère Suisse Attachment device for adjusting the movement of a balance

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JP5249292B2 (en) 2013-07-31
CN101995811A (en) 2011-03-30
CN101995811B (en) 2015-01-07
EP2290477A1 (en) 2011-03-02
US8297833B2 (en) 2012-10-30
HK1155823A1 (en) 2012-05-25
US20110051565A1 (en) 2011-03-03
JP2011047941A (en) 2011-03-10

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