EP2290477A1 - 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
EP2290477A1
EP2290477A1 EP09168602A EP09168602A EP2290477A1 EP 2290477 A1 EP2290477 A1 EP 2290477A1 EP 09168602 A EP09168602 A EP 09168602A EP 09168602 A EP09168602 A EP 09168602A EP 2290477 A1 EP2290477 A1 EP 2290477A1
Authority
EP
European Patent Office
Prior art keywords
channel
hairspring
stud
fixing
spiral
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
Application number
EP09168602A
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German (de)
French (fr)
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EP2290477B1 (en
Inventor
Christian Schmiedchen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Glashuetter Uhrenbetrieb GmbH
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Glashuetter Uhrenbetrieb GmbH
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Publication date
Application filed by Glashuetter Uhrenbetrieb GmbH filed Critical Glashuetter Uhrenbetrieb GmbH
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

Definitions

  • 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.
  • a regulating member comprising a sprung balance device.
  • the inner end of the hairspring is fixed to a ferrule provided on the axis of pivoting of the balance.
  • a peg holder housing a pin 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.
  • the bolt carrier is conventionally attached to a cock also serving to fix one end of the axis of the balance.
  • the manipulations to be performed with these various elements are delicate because access is restricted and the parts are very small.
  • 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.
  • the invention provides various means.
  • 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.
  • 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.
  • 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.
  • the hanger of the hairspring is convex, with a center of curvature substantially corresponding to the axis of the hairspring.
  • the stud is provided with an anti-friction pad disposed on the face of the stud designed to cooperate with the hairspring.
  • an anti-friction pad disposed on the face of the stud designed to cooperate with the hairspring.
  • the invention furthermore provides a watch comprising an attachment assembly as previously presented.
  • 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.
  • a shell 4 is driven on the axis of the balance and allows the attachment of the central portion of the hairspring 1.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the pin 10 can be easily maintained in the channel 3 without the risk of being lost.
  • 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.
  • 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.
  • 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.
  • the clamping 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.
  • 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.

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

Abstract

The assembly has a stud-carrier (2) permitting fixation of an outer end of a hairspring (1) in a convex channel (3) that is provided at the level of the stud-carrier. The stud-carrier houses a stud (10) against which the hairspring is maintained by locking. A stud locking screw (11) has a threaded body (12) for assembling the locking screw in an internal thread (14) of the stud-carrier. The locking screw has a pin (15) provided in an extension of the threaded body opposite to a head of the locking screw. The stud has a housing (16) in which the pin is inserted. Independent claims are also included for the following: (1) a balance spring device comprising a hairspring (2) a method for fixing a peripheral end of a hairspring on a balance spring device in a timepiece.

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.

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 comportant :

  • un porte-piton, destiné à être fixé à un coq et positionné de façon à permettre la fixation de l'extrémité extérieure du spiral dans un canal prévu au niveau du porte-piton et conçu pour loger un piton contre lequel le spiral est susceptible d'être maintenu par serrage;
  • une vis de serrage du piton, comportant un corps fileté pour montage dans un taraudage du porte-piton débouchant au niveau du canal et permettant de pousser le piton vers une face d'appui du canal et de fixer le spiral par interposition entre le piton et la dite face d'appui du canal. 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.
The invention firstly provides a fastening assembly for the outer end of the spiral of a sprung balance device for a timepiece comprising:
  • a peg carrier, intended to be fixed to a cock and positioned to allow the attachment of the outer end of the hairspring in a channel provided at the peg holder and designed to accommodate a peg against which the hairspring is likely to be held by tightening;
  • a bolt for clamping the bolt, comprising a threaded body for mounting in a tapping of the bolt carrier opening at the level of the channel and for pushing the bolt towards a bearing face of the channel and to fix the hairspring by interposition between the bolt and the said support face of the channel. According to the invention, the clamping screw comprises a needle provided in the extension of the threaded body opposite the screw head, and the pin comprises a housing in which the needle is capable of being inserted.

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 comportant :

  • un spiral susceptible de générer un mouvement alternatif d'un balancier monté pivotant sur un axe de balancier;
    • un coq servant de support à une des extrémités de l'axe de balancier;
    • une virole solidaire de l'axe de balancier et permettant la fixation de l'extrémité intérieure du spiral;
    • un porte-piton, fixé au coq, positionné de façon à permettre la fixation de l'extrémité extérieure du spiral dans un canal prévu sur le coq, ledit porte-piton étant conçu pour loger un piton contre lequel le spiral est susceptible d'être maintenu par serrage,
    • une vis de serrage du piton, comportant un corps fileté pour montage dans un taraudage du porte-piton débouchant au niveau du canal et permettant de pousser le piton vers une face d'appui du canal et de fixer le spiral par interposition entre le piton et la dite face d'appui du canal.
The invention also provides a sprung balance device for a timepiece comprising:
  • a hairspring capable of generating reciprocating movement of a rocker pivotally mounted on a balance shaft;
    • a cock serving as support for one end of the balance shaft;
    • a ferrule integral with the balance shaft and for fixing the inner end of the spiral;
    • a peg carrier, fixed to the cock, positioned so as to allow the attachment of the outer end of the hairspring in a channel provided on the rooster, said peg carrier being designed to accommodate a peg against which the hairspring is likely to be held by tightening,
    • a bolt for clamping the bolt, comprising a threaded body for mounting in a tapping of the bolt carrier opening at the level of the channel and for pushing the bolt towards a bearing face of the channel and to fix the hairspring by interposition between the bolt and the said support face of the channel.

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.The invention furthermore provides a watch comprising an attachment assembly as previously presented.

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 et ledit coq étant pourvu d'une part d'un canal conçu pour loger un piton et d'autre part d'un taraudage débouchant au niveau du canal, ledit procédé comportant les étapes consistant à:

  • disposer le piton dans le canal, un logement ayant été préalablement pratiqué dans le piton;
  • aligner le logement du piton avec le taraudage du porte-piton;
  • insérer une vis de serrage pourvue d'un pointeau, prévu dans le prolongement du corps fileté à l'opposée de la tête de vis, dans ledit taraudage;
  • disposer l'extrémité extérieure du spiral dans ledit canal, radialement intérieurement au piton;
  • serrer partiellement la vis de serrage de façon à permettre l'insertion du pointeau dans le logement et de façon à permettre un coulissement latéral de l'extrémité du spiral dans le canal;
  • ajuster la position latérale de l'extrémité extérieure du spiral dans son emplacement de fixation de façon à régler la longueur active du spiral ;
  • serrer complètement la vis de serrage de façon à empêcher tout coulissement latéral de l'extrémité extérieure du spiral dans le canal.
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 attached to a cock and said cock being provided on the one hand with a channel designed to house a piton and on the other hand a tapping opening at the channel, said method comprising the steps of:
  • to arrange the piton in the canal, a lodging having been previously practiced in the piton;
  • align the piton housing with the tapping of the bolt carrier;
  • inserting a clamping screw provided with a needle, provided in the extension of the threaded body opposite the screw head, into said tapping;
  • arranging the outer end of the hairspring in said channel, radially inwardly to the peak;
  • partially tightening the clamping screw so as to allow insertion of the needle into the housing and to allow lateral sliding of the end of the hairspring into the channel;
  • adjusting the lateral position of the outer end of the hairspring in its attachment location so as to adjust the active length of the hairspring;
  • fully tighten the clamping screw to prevent lateral sliding of the outer end of the hairspring into the channel.

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 15 du piton 10 avec le trou taraudé 14.
  • On dispose l'extrémité extérieure du spiral dans ledit canal, radialement intérieurement 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 15 of the stud 10 is then aligned with the tapped hole 14.
  • The outer end of the hairspring is arranged in said channel, radially inwardly at 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 clamping 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 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 can be extended to other embodiments in which the stud is otherwise configured, and / or the clamping screw provided in another position with respect to the axis of the invention. carrier peak.

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)

Ensemble de fixation de l'extrémité périphérique du spiral (1) d'un dispositif à balancier-spiral pour pièce d'horlogerie comportant : • un porte-piton (2), destiné à être fixé à un coq (5) et positionné de façon à permettre la fixation de l'extrémité extérieure du spiral (1) dans un canal (3) prévu au niveau du porte-piton (2) et conçu pour loger un piton (10) contre lequel le spiral (1) est susceptible d'être maintenu par serrage; • une vis (11) de serrage du piton, comportant un corps fileté (12) pour montage dans un taraudage (14) du porte-piton débouchant au niveau du canal (3) et permettant de pousser le piton (10) vers une face d'appui (7) du canal (3) et de fixer le spiral (1) par interposition entre le piton (10) et la dite face d'appui (7) du canal, caractérisé en ce que : • la vis de serrage (11) comporte un pointeau (15) prévu dans le prolongement du corps fileté (12), à l'opposée de la tête de vis ; • le piton (10) comporte un logement (16) dans lequel le pointeau (15) est susceptible d'être inséré ; Device for fastening the peripheral end of the spiral (1) of a pendulum-balance device for a timepiece comprising: A stud holder (2), intended to be fixed to a cock (5) and positioned so as to allow the fixing of the outer end of the hairspring (1) in a channel (3) provided at the level of the hanger (2) and adapted to accommodate a stud (10) against which the hairspring (1) can be held by clamping; A bolt (11) for clamping the bolt, comprising a threaded body (12) for mounting in a tapping (14) of the bolt carrier opening at the level of the channel (3) and making it possible to push the bolt (10) towards a face supporting (7) the channel (3) and fixing the hairspring (1) by interposition between the peak (10) and said support face (7) of the channel, characterized in that • the clamping screw (11) comprises a needle (15) provided in the extension of the threaded body (12), opposite the screw head; • the peak (10) comprises a housing (16) in which the needle (15) is insertable; Ensemble de fixation selon la revendication 1, dans lequel le taraudage du porte-piton (14) est orienté selon un axe sensiblement radial par rapport à l'axe de virole (4), et pratiqué du côté éloigné du canal (3) par rapport à l'axe de la virole, la face d'appui (7) du canal étant prévue sensiblement en face du taraudage (14).Fastening assembly according to claim 1, wherein the tapping of the bolt carrier (14) is oriented along a substantially radial axis relative to the ferrule axis (4), and made on the remote side of the channel (3) relative to to the axis of the shell, the bearing face (7) of the channel being provided substantially opposite the tapping (14). Ensemble de fixation selon l'une quelconque des revendications précédentes, dans lequel le piton (10) est pourvu d'un patin anti-frottement (18) disposé sur la face du piton prévue pour coopérer avec le spiral (1).Fixing assembly according to any one of the preceding claims, wherein the stud (10) is provided with an anti-friction pad (18) disposed on the face of the stud provided to cooperate with the spiral (1). Ensemble de fixation selon l'une quelconque des revendications précédentes, dans lequel le canal de fixation du spiral (1) est convexe, avec un centre de courbure sensiblement correspondant à l'axe du spiral.Fixing assembly according to any one of the preceding claims, wherein the spiral fixing channel (1) is convex, with a center of curvature substantially corresponding to the axis of the spiral. Montre comportant un ensemble de fixation selon l'une quelconque des revendications 1 à 4.Watch comprising a fixing assembly according to any one of Claims 1 to 4. Dispositif à balancier-spiral pour pièce d'horlogerie comportant : • un spiral (1) susceptible de générer un mouvement alternatif d'un balancier (6) monté pivotant sur un axe de balancier; • un coq (5) servant de support à une des extrémités de l'axe de balancier; • une virole (4) solidaire de l'axe de balancier et permettant la fixation de l'extrémité intérieure du spiral (1) ; • un porte-piton (2), fixé au coq (5), positionné de façon à permettre la fixation de l'extrémité extérieure du spiral (1) dans un canal (3) prévu sur le coq et conçu pour loger un piton (10) contre lequel le spiral est susceptible d'être maintenu par serrage, • une vis (11) de serrage du piton, comportant un corps fileté (12) pour montage dans un taraudage (14) du porte-piton débouchant au niveau du canal (3) et permettant de pousser le piton (10) vers une face d'appui (7) du canal (3) et de fixer le spiral (1) par interposition entre le piton (10) et la dite face d'appui (7) du canal (3), caractérisé en ce que : • la vis de serrage (11) comporte un pointeau (15) prévu dans le prolongement du corps fileté (12), à l'opposée de la tête de vis ; • le piton (10) comporte un logement (16) dans lequel le pointeau (15) est susceptible d'être inséré. A sprung balance device for a timepiece comprising: • a spring (1) capable of generating reciprocating movement of a rocker (6) pivotally mounted on a balance shaft; • a cock (5) serving as support for one end of the balance shaft; • a ferrule (4) integral with the balance shaft and for fixing the inner end of the spiral (1); • a peg carrier (2), fixed to the cock (5), positioned so as to allow the fixing of the outer end of the hairspring (1) in a channel (3) provided on the rooster and designed to accommodate a peg ( 10) against which the hairspring is likely to be held by clamping, A bolt (11) for clamping the bolt, comprising a threaded body (12) for mounting in a tapping (14) of the bolt carrier opening at the level of the channel (3) and making it possible to push the bolt (10) towards a face supporting (7) the channel (3) and fixing the hairspring (1) by interposition between the pin (10) and said bearing face (7) of the channel (3), characterized in that • the clamping screw (11) comprises a needle (15) provided in the extension of the threaded body (12), opposite the screw head; • the stud (10) has a housing (16) in which the needle (15) is insertable. Procédé de fixation de l'extrémité périphérique d'un spiral (1) dans un dispositif à balancier-spiral pour pièce d'horlogerie comportant un porte-piton (2) fixé à un coq (5) et ledit coq étant pourvu d'une part d'un canal (3) conçu pour loger un piton (10) et d'autre part d'un taraudage (14) débouchant au niveau du canal (3), ledit procédé comportant les étapes consistant à : • disposer le piton (10) dans le canal (3), un logement (16) ayant été préalablement pratiqué dans le piton; • aligner le logement (16) du piton (10) avec le taraudage (14) du porte-piton (2) ; • insérer une vis de fixation (11) pourvue d'un pointeau (15), prévu dans le prolongement du corps fileté (12) à l'opposée de la tête de vis, dans ledit taraudage (14) ; • disposer l'extrémité périphérique du spiral (1) dans ledit canal (3), radialement intérieurement au piton (10) ; • serrer partiellement la vis (11) 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) ; • ajuster la position latérale de l'extrémité du spiral dans son emplacement de fixation de façon à régler la longueur active du spiral ; • serrer complètement la vis (11) de façon à empêcher tout coulissement latéral de l'extrémité extérieure du spiral dans le canal (3). A method of fixing the peripheral end of a spiral (1) in a sprung balance device for a timepiece comprising a stud holder (2) fixed to a cock (5) and said cock being provided with a part of a channel (3) designed to house a peak (10) and secondly of a tapping (14) opening at the channel (3), said method comprising the steps of: • arrange the stud (10) in the channel (3), a housing (16) having been previously practiced in the piton; • align the housing (16) of the stud (10) with the tapping (14) of the bolt carrier (2); • insert a fixing screw (11) provided with a needle (15), provided in the extension of the threaded body (12) at the opposite of the screw head, in said tapping (14); • arranging the peripheral end of the hairspring (1) in said channel (3), radially internally to the pin (10); • partially tighten the screw (11) so as to allow the insertion of the needle (15) in the housing (16) and to allow lateral sliding of the outer end of the spiral in the channel (3); Adjusting the lateral position of the end of the hairspring in its attachment location so as to adjust the active length of the hairspring; • fully tighten the screw (11) to prevent lateral sliding of the outer end of the hairspring into 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 true EP2290477A1 (en) 2011-03-02
EP2290477B1 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)
HK (1) HK1155823A1 (en)

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EP2876504A1 (en) * 2013-11-20 2015-05-27 ETA SA Manufacture Horlogère Suisse Screwless clock stud holder
EP2876505A1 (en) * 2013-11-20 2015-05-27 ETA SA Manufacture Horlogère Suisse Clock stud holder with screw
CN105717778A (en) * 2014-12-22 2016-06-29 Eta瑞士钟表制造股份有限公司 Balance spring stud-holder

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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
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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EP2876504A1 (en) * 2013-11-20 2015-05-27 ETA SA Manufacture Horlogère Suisse Screwless clock stud holder
EP2876505A1 (en) * 2013-11-20 2015-05-27 ETA SA Manufacture Horlogère Suisse Clock stud holder with screw
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Also Published As

Publication number Publication date
EP2290477B1 (en) 2014-06-11
JP5249292B2 (en) 2013-07-31
US8297833B2 (en) 2012-10-30
CN101995811A (en) 2011-03-30
CN101995811B (en) 2015-01-07
US20110051565A1 (en) 2011-03-03
JP2011047941A (en) 2011-03-10
HK1155823A1 (en) 2012-05-25

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