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EP3179314B1 - Stud support with simplified assembly - Google Patents

Stud support with simplified assembly Download PDF

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Publication number
EP3179314B1
EP3179314B1 EP15199633.7A EP15199633A EP3179314B1 EP 3179314 B1 EP3179314 B1 EP 3179314B1 EP 15199633 A EP15199633 A EP 15199633A EP 3179314 B1 EP3179314 B1 EP 3179314B1
Authority
EP
European Patent Office
Prior art keywords
stud
lug
base
balance spring
elastic arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15199633.7A
Other languages
German (de)
French (fr)
Other versions
EP3179314A1 (en
Inventor
Julien Christan
Patrick Möller
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP15199633.7A priority Critical patent/EP3179314B1/en
Priority to US15/339,322 priority patent/US10222747B2/en
Priority to JP2016220228A priority patent/JP6326116B2/en
Priority to CN201611128164.8A priority patent/CN106873342B/en
Publication of EP3179314A1 publication Critical patent/EP3179314A1/en
Priority to US15/936,116 priority patent/US11073796B2/en
Application granted granted Critical
Publication of EP3179314B1 publication Critical patent/EP3179314B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • 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
    • G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
    • G04B18/06—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat by setting the collet or the stud of a hairspring
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00—Gripping, holding, or supporting devices
    • G04D1/04—Tools for setting springs
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D1/00—Gripping, holding, or supporting devices
    • G04D1/04—Tools for setting springs
    • G04D1/042—Tools for setting springs for coil springs in regulating mechanisms
    • G04D1/045—Tools for setting springs for coil springs in regulating mechanisms for fastening the ends
    • G04D1/048—Tools for setting springs for coil springs in regulating mechanisms for fastening the ends on the coil bobbin

Definitions

  • the present invention relates to a holding or supporting assembly of a spiral clockwork spring, comprising a pin and a stud holder.
  • 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 combination with a clamping screw for tightening the bolt against the portion of the hairspring engaged in the bolt carrier.
  • a movement comprising a resonator comprising a balance and two spirals mounted by their inner coil one above the other on the same axis which pivots between a plate and a bridge, the spirals winding in the same direction and the point of attachment of their inner coil being offset by 180 ° with respect to said axis, the movement comprising a pitting system comprising a single stud which cooperates with the outer turn of each hairspring by a pusher point shifter for attaching each outer turn to the bridge.
  • the bolt carrier is conventionally attached to a cock also serving to fix one end of the axis of the balance.
  • the rooster is designed to integrate a kitten equipped with a shockproof device for the balance shaft.
  • a known stud holder uses two rings. These two rings are rotatably mounted at the level of the kitten. Each The ring includes a tuning-fork or Y-shaped extension, this fork of the Y thus forming a housing.
  • a first ring is then used so that the stud is housed while the second ring is used for a setting element is housed.
  • This adjustment element makes it possible to adjust the limitation of the hairspring to adjust the step and therefore the frequency of the hairspring.
  • the object of the invention is to overcome the drawbacks of the prior art by proposing to provide a support or support assembly for a spiral watch spring which allows a simplified assembly or disassembly of the stud.
  • the present invention relates to a holding or supporting assembly of a spiral clock spring according to claims 1 and 2.
  • This holding assembly according to the invention thus allows a mounting / dismounting piton which is simple and which limits the constraints on the spiral as much as possible.
  • said bolt carrier further comprises a notch arranged so that the bolt can be housed therein.
  • the notch is arranged on the base.
  • the notch is arranged on the elastic arm.
  • the invention further relates to a method of mounting a bolt on a bolt carrier according to claims 5 and 6.
  • said bolt carrier further comprises a notch arranged so that the bolt can be housed therein.
  • the invention also relates to a method of dismounting a stud on a stud holder according to claims 9 and 10.
  • said bolt carrier further comprises a notch arranged so that the bolt can be housed therein, the force exerted by the arms of said tool is transmitted to the elastic arm via the bolt is sufficient to take the piton out of the notch.
  • the present invention proceeds from the general idea of providing a support or support assembly of a spiral clock spring for mounting / dismounting of the simplest piton.
  • FIG. 1 On the figure 1 is represented the holding or support assembly 1 according to the present invention.
  • Such an assembly 1 is mounted on a rooster 2 and comprises a stud holder 3 used to hold a stud 5.
  • the cock 2 is made to include a pivoting device 4, this pivoting device 4 being in the form of a bearing body 40 in which a kitten 41 provided with a pierced stone 42 and stone against pivot 43 and a spring 44.
  • the bolt carrier 3 comprises a base 30.
  • This base 30 is in the form of an open ring or at least one piece having at least one circular portion.
  • This base 30 is attached to the cock 2.
  • a first possibility is to structure the cock 2 for example by partially recessing to form a chimney 20 at which the bearing body is mounted.
  • This chimney is the element of the cock that will be used for fixing the base 30.
  • the chimney is structured to have a circular shape as visible in the figure 2 .
  • the dimensions of the base 30 allow it to be fixed at the level of the bearing body 40 of the shock absorber system.
  • This annular shape of the base 30 allows it to be mobile in rotation.
  • the base 30 can then be clipped so as to grip the bearing body 40.
  • this pivoting device 4 may be just a cylindrical portion projecting and including a shock absorbing device or just a hole for the pivoting of the axis.
  • This base 30 comprises attachment means 31 for fixing the stud 5.
  • These attachment means 31 cleverly comprise a first stud 32, this first stud 32 extends from the base 30 radially. The end of this stud is completed by an arm 33.
  • This arm 33 comes from material with the pad 32 and extends from the end of said stud 31, parallel to the curvature of the base 30.
  • This arm 33 is preferably elastic and is used for fixing the stud.
  • the elastic arm 33 and the base 30 then form a housing 34 in which the stud 5 can be inserted.
  • the mounting of the piton is simplified.
  • the base 30 is provided with a second pad 35.
  • This second pad 35 also extends radially from said base.
  • This second stud 35 is arranged so that the first stud and the second stud are angularly distant from an angle less than 180 °.
  • the angle between the studs is determined by the necessary length of the arm and the space available with the bridge. Preferably, this angle will be less than 120 °.
  • This arrangement makes it possible to use a simple mounting method of the piton. For this, the stud is previously mounted on the hairspring.
  • the hairspring is mounted to the pin, the pin is placed at the entrance of the housing 34 formed by the elastic arm 33 and the base 30.
  • a first tool or tweeter type instrument is an instrument such as a clamp, thin and can be provided with a spring.
  • the user places one of the arms of the clamp bearing on the stud and the second arm bears on the first stud 32. More particularly, the arms of the clamp are set up so to be spaced apart and so that the first stud 32 and the stud 5 obstruct the return of the arms in their rest position.
  • a third step visible to the figure 3 the user exerts a pressure P on the arms of the clamp. This pressure is then transmitted to the first stud and the piton. However, since the first stud 32 is made of material with the base, the pressure exerted by the arms then causes the displacement of the stud 5 which is the only part that can move. The peak, under the effect of the stress exerted by the tweezers, tends to exert pressure on the entrance of the housing 34. This pressure then causes a spacing of the elastic arm 33 so that the pin can fit into the housing.
  • the elastic arm 33 and / or the base 30 are provided with a notch 36 as visible in FIG. figure 4 . This notch 36 is used to lock the position of the peak.
  • the notch 36 placed on the base 30 and / or the elastic arm 33 increases the number of points of contact.
  • the pin With the presence of a notch, having a shape of V, the pin is naturally placed in its optimal position and is better maintained because of the number of upper contact points.
  • the number of optimal contact points is three, a higher number would lead to an over-constraint, which would be less good, less effective.
  • the user removes the tweezers. It can then perform an optional operation of angular adjustment. Indeed, with a base 30 having a ring shape and mounted at the level of the kitten, it is conceivable that the base 30 can be angularly movable. This advantageously makes it possible to modify the angular position of the peak 5 to adjust the running of the watch.
  • the user uses tweezers. It can advantageously place the arms A tweezers on either side of the second stud 35 by pinching via a pressure P "or between the first pad 32 and the second pad 35. It can then move the ring clockwise or counterclockwise to change the angular position of the piton 5 as visible in the figure 6 .
  • a first procedure consists in using tweezers, these tweezers being one of the basic tools of a watchmaker. Once the user has these tweezers, the procedure can begin.
  • This first procedure uses the same principle as for the engagement of the stud 5 on the stud holder 3. For this, the user spreads the arms of the tweezers so that one of the arms bears on the second stud 35 while the other arm is supported on the piton 5 as visible in the figure 3 .
  • This arrangement of the tweezers arms is arranged so that the second stud 35 and the stud 5 tend to prevent the arms of the tweezers to return to their original position.
  • the user exerts a pressure P 'on said arms tweezers to try to make them resume their original position.
  • This pressure exerted by the user is transmitted to piton 5 which is, between the second pad 35 and him, the only movable element.
  • the stud 5 exerts pressure on the base 30 and on the elastic arm 33. If the pressure exerted by the user increases, it may become sufficient to move the elastic arm 33 away. In this case, the stud 5 out of the notch 36.
  • the user can then seize said peg 5 with these tweezers and out of the housing as visible in the figure 5 .
  • the second stud 35 is provided with a notch 35 'which serves as a stop for the pin, which prevents the pin from too far away from the pendulum because of the jerk, which could break the hairspring.
  • the user must previously be equipped with tweezers but also a second tool type screwdriver T.
  • the user uses his tweezers to pinch the stud 5 and simultaneously uses the screwdriver, preferably a flat-head screwdriver.
  • This screwdriver T is used as follows. The screwdriver head is slid into the housing, preferably having the flat head extending parallel to the base. The user then makes a rotational movement of the screwdriver on itself. This rotation allows the screwdriver to contact the base and the elastic arm. If the user continues to rotate the screwdriver, a lever effect occurs, the dimensions of the screwdriver being set for this to be possible.
  • This leverage then causes the appearance of a constraint on the elastic arm 33 and the base 30. Since the elastic arm 33 is the only element to be deformed, this leverage causes the deformation of said arm. This deformation causes the enlargement of the housing 34 and thus a decrease in the stress applied to the peak by the elastic arm. It becomes possible with the tweezers to get out of the piton. Releasing the rotation of the screwdriver allows said arm to resume its initial position.
  • the stud 5 can be made so as to have a conical shape which allows to engage vertically in the stud holder in the case of an automatic assembly.
  • the use of the screwdriver T can also be used for mounting the stud.
  • the screwdriver head is slid into the housing, preferably having the flat head extending parallel to the base.
  • the user then makes a rotational movement of the screwdriver on itself. This rotation allows the screwdriver to contact the base and the elastic arm. If the user continues to rotate the screwdriver, a lever effect occurs, the dimensions of the screwdriver being set for this to be possible.
  • This leverage then causes the appearance of a constraint on the elastic arm 33 and the base 30. Since the elastic arm 33 is the only element to be able to deform, this leverage causes the deformation of said arm. This deformation causes enlargement of the housing 34 and the possibility of sliding the pin in the housing.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Adornments (AREA)

Description

La présente invention concerne un ensemble de maintien ou d'appui d'un ressort spiral d'horlogerie, comportant un piton et un porte-piton.The present invention relates to a holding or supporting assembly of a spiral clockwork spring, comprising a pin and a stud holder.

ART ANTÉRIEURPRIOR 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.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.

Par exemple, on connait du document CH 705 440 , qui montre un ensemble de maintien ou d'appui d'un ressort spiral d'horlogerie selon le préambule des revendications 1 et 2, un mouvement comprenant un résonateur comportant un balancier et deux spiraux montés par leur spire interne l'un au-dessus de l'autre sur un même axe qui pivote entre une platine et un pont, les spiraux s'enroulant dans le même sens et le point d'attache de leur spire interne étant décalés de 180° par rapport audit axe, le mouvement comportant un système de pitonnage comprenant un piton unique qui coopère avec la spire externe de chaque spiral par un dispositif de décalage du point de pitonnage pour attacher chaque spire externe au pont.For example, we know of the document CH 705 440 , which shows a holding or supporting assembly of a spiral spring watch according to the preamble of claims 1 and 2, a movement comprising a resonator comprising a balance and two spirals mounted by their inner coil one above the other on the same axis which pivots between a plate and a bridge, the spirals winding in the same direction and the point of attachment of their inner coil being offset by 180 ° with respect to said axis, the movement comprising a pitting system comprising a single stud which cooperates with the outer turn of each hairspring by a pusher point shifter for attaching each outer turn to the bridge.

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. Le coq est conçu pour intégrer un chaton équipé d'un dispositif antichoc pour l'axe de balancier. Un porte-piton connu utilise deux bagues. Ces deux bagues sont montées de façon mobile en rotation au niveau du chaton. Chaque bague comprend une extension en forme de diapason ou de Y, cette fourche du Y formant ainsi un logement.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. The rooster is designed to integrate a kitten equipped with a shockproof device for the balance shaft. A known stud holder uses two rings. These two rings are rotatably mounted at the level of the kitten. Each The ring includes a tuning-fork or Y-shaped extension, this fork of the Y thus forming a housing.

Une première bague est alors utilisée pour que le piton y soit logé alors que la deuxième bague est utilisée pour qu'un élément de réglage y soit logé. Cet élément de réglage permet de régler la limitation du spiral pour régler la marche et donc la fréquence du spiral.A first ring is then used so that the stud is housed while the second ring is used for a setting element is housed. This adjustment element makes it possible to adjust the limitation of the hairspring to adjust the step and therefore the frequency of the hairspring.

Si un tel dispositif montre son efficacité pour les spiraux en acier actuellement utilisés, il est nettement moins pratique pour l'utilisation des spiraux de dernière génération en silicium. En effet, ces matériaux ont la réputation d'être assez fragiles. Or, le dispositif porte-piton actuel nécessite beaucoup de manipulations lors du montage et du service après-vente de sorte que les risques d'endommager les spiraux silicium sont importants.If such a device shows its effectiveness for the steel spirals currently used, it is clearly less convenient for the use of the latest generation spirals silicon. Indeed, these materials have the reputation for being quite fragile. However, the current bolt device requires a lot of handling during assembly and after-sales service so that the risk of damaging the silicon spirals are important.

RESUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

L'invention a pour but de pallier les inconvénients de l'art antérieur en proposant de fournir un ensemble de maintien ou d'appui d'un ressort spiral d'horlogerie qui permet un montage ou un démontage simplifié du piton.The object of the invention is to overcome the drawbacks of the prior art by proposing to provide a support or support assembly for a spiral watch spring which allows a simplified assembly or disassembly of the stud.

A cet effet, la présente invention concerne un ensemble de maintien ou d'appui d'un ressort spiral d'horlogerie selon les revendications 1 et 2.To this end, the present invention relates to a holding or supporting assembly of a spiral clock spring according to claims 1 and 2.

Cet ensemble de maintien selon l'invention permet ainsi d'avoir un montage/démontage du piton qui est simple et qui limite au maximum les contraintes sur le spiral.This holding assembly according to the invention thus allows a mounting / dismounting piton which is simple and which limits the constraints on the spiral as much as possible.

Dans un premier mode de réalisation avantageux, ledit porte-piton comprend en outre une encoche agencée afin que le piton puisse s'y loger.In a first advantageous embodiment, said bolt carrier further comprises a notch arranged so that the bolt can be housed therein.

Dans un second mode de réalisation avantageux, l'encoche est agencée sur la base.In a second advantageous embodiment, the notch is arranged on the base.

Dans un troisième mode de réalisation avantageux, l'encoche est agencée sur le bras élastique.In a third advantageous embodiment, the notch is arranged on the elastic arm.

L'invention concerne en outre une méthode de montage d'un piton sur un porte-piton selon les revendications 5 et 6.The invention further relates to a method of mounting a bolt on a bolt carrier according to claims 5 and 6.

Dans un premier mode de réalisation avantageux, ledit porte-piton comprend en outre une encoche agencée afin que le piton puisse s'y loger.In a first advantageous embodiment, said bolt carrier further comprises a notch arranged so that the bolt can be housed therein.

L'invention concerne encore une méthode de démontage d'un piton sur un porte-piton selon les revendications 9 et 10.The invention also relates to a method of dismounting a stud on a stud holder according to claims 9 and 10.

Dans un premier mode de réalisation avantageux, ledit porte-piton comprend en outre une encoche agencée afin que le piton puisse s'y loger, la force exercée par les bras dudit outil est transmise au bras élastique par l'intermédiaire du piton est suffisante pour faire sortir le piton de l'encoche.In a first advantageous embodiment, said bolt carrier further comprises a notch arranged so that the bolt can be housed therein, the force exerted by the arms of said tool is transmitted to the elastic arm via the bolt is sufficient to take the piton out of the notch.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

Les buts, avantages et caractéristiques de l'invention apparaîtront plus clairement dans la description détaillée suivante d'au moins une forme de réalisation de l'invention donnée uniquement à titre d'exemple non limitatif et illustrée par les dessins annexés sur lesquels :

  • Les figures 1 et 2 représentent un schéma d'un ensemble de maintien selon l'invention;
  • Les figures 3 à 5 représentent un schéma des opérations de montage et démontage du piton de l'ensemble de maintien selon l'invention;
  • La figure 6 représente une variante de l'opération de montage du piton de l'ensemble de maintien selon l'invention;
  • La figure 7 représente une variante de l'opération de démontage du piton de l'ensemble de maintien selon l'invention.
The objects, advantages and features of the invention will appear more clearly in the following detailed description of at least one embodiment of the invention given solely by way of nonlimiting example and illustrated by the appended drawings in which:
  • The Figures 1 and 2 represent a diagram of a holding assembly according to the invention;
  • The Figures 3 to 5 represent a diagram of the operations of assembly and disassembly of the peak of the holding assembly according to the invention;
  • The figure 6 represents a variant of the piton mounting operation of the holding assembly according to the invention;
  • The figure 7 represents a variant of the dismounting operation of the piton of the holding assembly according to the invention.

DESCRIPTION DETAILLEEDETAILED DESCRIPTION

La présente invention procède de l'idée générale de fournir un ensemble de maintien ou d'appui d'un ressort spiral d'horlogerie permettant un montage/démontage du piton plus simple.The present invention proceeds from the general idea of providing a support or support assembly of a spiral clock spring for mounting / dismounting of the simplest piton.

Sur la figure 1 est représenté l'ensemble de maintien ou d'appui 1 selon la présente invention. Un tel ensemble 1 est monté sur un coq 2 et comprend un porte-piton 3 utilisé pour maintenir un piton 5. Le coq 2 est réalisé pour comprendre un dispositif de pivotement 4, ce dispositif de pivotement 4 pouvant se présenter sous la forme d'un corps de palier 40 dans lequel un chaton 41 muni d'une pierre percée 42 et pierre contre pivot 43 et d'un ressort 44.On the figure 1 is represented the holding or support assembly 1 according to the present invention. Such an assembly 1 is mounted on a rooster 2 and comprises a stud holder 3 used to hold a stud 5. The cock 2 is made to include a pivoting device 4, this pivoting device 4 being in the form of a bearing body 40 in which a kitten 41 provided with a pierced stone 42 and stone against pivot 43 and a spring 44.

Le porte-piton 3 selon l'invention comprend une base 30. Cette base 30 se présente sous la forme d'une bague ouverte ou au moins d'une pièce présentant au moins une portion circulaire. Cette base 30 vient se fixer au coq 2. Une première possibilité consiste à structurer le coq 2 par exemple en l'évidant en partie afin de former une cheminée 20 au niveau de laquelle le corps de palier est monté. Cette cheminée est l'élément du coq qui sera utilisé pour la fixation de la base 30. De ce fait, la cheminée est structurée pour avoir une forme circulaire comme visible à la figure 2. Selon une seconde possibilité, les dimensions de la base 30 lui permettent de se fixer au niveau du corps de palier 40 du système amortisseur de chocs. Cette forme annulaire de la base 30 lui permet d'être mobile en rotation. La base 30 peut alors être clippée de sorte à enserrer le corps de palier 40. Bien entendu, ce dispositif de pivotement 4 pouvant être juste une portion cylindrique faisant saillie et incluant un dispositif amortisseur de choc ou juste un trou pour le pivotement de l'axe.The bolt carrier 3 according to the invention comprises a base 30. This base 30 is in the form of an open ring or at least one piece having at least one circular portion. This base 30 is attached to the cock 2. A first possibility is to structure the cock 2 for example by partially recessing to form a chimney 20 at which the bearing body is mounted. This chimney is the element of the cock that will be used for fixing the base 30. As a result, the chimney is structured to have a circular shape as visible in the figure 2 . According to a second possibility, the dimensions of the base 30 allow it to be fixed at the level of the bearing body 40 of the shock absorber system. This annular shape of the base 30 allows it to be mobile in rotation. The base 30 can then be clipped so as to grip the bearing body 40. Of course, this pivoting device 4 may be just a cylindrical portion projecting and including a shock absorbing device or just a hole for the pivoting of the axis.

Cette base 30 comporte des moyens d'attache 31 permettant la fixation du piton 5. Ces moyens d'attache 31 comprennent astucieusement un premier plot 32, ce premier plot 32 s'étend depuis la base 30 de façon radiale. L'extrémité de ce plot est complétée par un bras 33. Ce bras 33 vient de matière avec le plot 32 et s'étend, depuis l'extrémité dudit plot 31, de façon parallèle à la courbure de la base 30. Ce bras 33 est de préférence élastique et est utilisé pour la fixation du piton.This base 30 comprises attachment means 31 for fixing the stud 5. These attachment means 31 cleverly comprise a first stud 32, this first stud 32 extends from the base 30 radially. The end of this stud is completed by an arm 33. This arm 33 comes from material with the pad 32 and extends from the end of said stud 31, parallel to the curvature of the base 30. This arm 33 is preferably elastic and is used for fixing the stud.

Le bras élastique 33 et la base 30 forment alors un logement 34 dans lequel le piton 5 peut être inséré.The elastic arm 33 and the base 30 then form a housing 34 in which the stud 5 can be inserted.

Astucieusement selon l'invention, il est prévu que le montage du piton soit simplifié. Pour cela, la base 30 est munie d'un second plot 35. Ce second plot 35 s'étend également radialement depuis ladite base. Ce second plot 35 est disposé de sorte que le premier plot et le second plot soient angulairement distants d'un angle inférieur à 180°. L'angle entre les plots est déterminé par la longueur nécessaire du bras et l'espace à disposition avec le pont. Préférentiellement, cet angle sera inférieur à 120°. Cette disposition permet d'utiliser une méthode simple de montage du piton. Pour cela, le piton est préalablement monté sur le spiral.Cleverly according to the invention, it is provided that the mounting of the piton is simplified. For this, the base 30 is provided with a second pad 35. This second pad 35 also extends radially from said base. This second stud 35 is arranged so that the first stud and the second stud are angularly distant from an angle less than 180 °. The angle between the studs is determined by the necessary length of the arm and the space available with the bridge. Preferably, this angle will be less than 120 °. This arrangement makes it possible to use a simple mounting method of the piton. For this, the stud is previously mounted on the hairspring.

Dans une première étape, le spiral est monté au piton, le piton est placé à l'entrée du logement 34 formé par le bras élastique 33 et la base 30.In a first step, the hairspring is mounted to the pin, the pin is placed at the entrance of the housing 34 formed by the elastic arm 33 and the base 30.

Dans une seconde étape, l'utilisateur se munit d'un premier outil ou instrument de type brucelles. On comprend par là qu'il s'agit d'un instrument tel qu'une pince, fine et pouvant être munie d'un ressort. Une fois muni de cette pince, l'utilisateur place l'un des bras de la pince en appui sur le piton et le second bras en appui sur le premier plot 32. Plus particulièrement, les bras de la pince sont mis en place de sorte à être écartés et de sorte que le premier plot 32 et le piton 5 fassent obstacle au retour des bras dans leur position de repos.In a second step, the user is provided with a first tool or tweeter type instrument. It is understood that it is an instrument such as a clamp, thin and can be provided with a spring. Once provided with this clamp, the user places one of the arms of the clamp bearing on the stud and the second arm bears on the first stud 32. More particularly, the arms of the clamp are set up so to be spaced apart and so that the first stud 32 and the stud 5 obstruct the return of the arms in their rest position.

Dans une troisième étape visible à la figure 3, l'utilisateur exerce une pression P sur les bras de la pince. Cette pression est alors transmise au premier plot et au piton. Or, comme le premier plot 32 est fait de matière avec la base, la pression exercée par les bras entraine alors le déplacement du piton 5 qui est la seule pièce pouvant se déplacer. Le piton, sous l'effet de la contrainte exercée par les brucelles, tend à exercer une pression sur l'entrée du logement 34. Cette pression entraine alors un écartement du bras élastique 33 afin que le piton puisse s'insérer dans le logement. Préférentiellement, le bras élastique 33 et/ou la base 30 sont munis d'une encoche 36 comme visible à la figure 4. Cette encoche 36 est utilisée afin de verrouiller la position du piton. En effet, sans encoche, il existe un risque pour que la force exercée par le bras sur le piton 5 ne soit pas suffisante. De ce fait, un choc pourrait entraîner un glissement du piton 5 dans le logement 34 et entraîner un dérèglement du système réglant de la montre. L'encoche 36 placée sur la base 30 et/ou le bras élastique 33 permet d'augmenter le nombre de point de contact. Dans le cas d'une absence d'encoche 36, il y a deux points de contact contre le piton : un point de contact entre le piton et la base et un point de contact entre le piton et le bras élastique. Avec la présence d'une encoche, ayant une forme de V, le piton est naturellement placé dans sa position optimale et est mieux maintenu du fait du nombre de points de contact supérieur. Le nombre de points de contact optimal est de trois, un nombre supérieur entrainerait une sur-contrainte, ce qui serait moins bon, moins efficace.In a third step visible to the figure 3 , the user exerts a pressure P on the arms of the clamp. This pressure is then transmitted to the first stud and the piton. However, since the first stud 32 is made of material with the base, the pressure exerted by the arms then causes the displacement of the stud 5 which is the only part that can move. The peak, under the effect of the stress exerted by the tweezers, tends to exert pressure on the entrance of the housing 34. This pressure then causes a spacing of the elastic arm 33 so that the pin can fit into the housing. Preferably, the elastic arm 33 and / or the base 30 are provided with a notch 36 as visible in FIG. figure 4 . This notch 36 is used to lock the position of the peak. Indeed, without a notch, there is a risk so that the force exerted by the arm on the piton 5 is not sufficient. As a result, a shock could cause the stud 5 to slip into the housing 34 and cause a disturbance of the regulating system of the watch. The notch 36 placed on the base 30 and / or the elastic arm 33 increases the number of points of contact. In the case of an absence of notch 36, there are two points of contact against the peak: a point of contact between the peak and the base and a point of contact between the peak and the elastic arm. With the presence of a notch, having a shape of V, the pin is naturally placed in its optimal position and is better maintained because of the number of upper contact points. The number of optimal contact points is three, a higher number would lead to an over-constraint, which would be less good, less effective.

Une fois le piton dans sa position désirée, l'utilisateur retire les brucelles. Il peut alors opérer une opération facultative de réglage angulaire. En effet, avec une base 30 ayant une forme de bague et montée au niveau du chaton, il est envisageable que la base 30 puisse être mobile angulairement. Cela permet avantageusement de modifier la position angulaire du piton 5 pour régler la marche de la montre. Pour cela, l'utilisateur utilise des brucelles. Il peut avantageusement placer les bras A des brucelles de part et d'autre du second plot 35 en le pinçant via une pression P" ou entre le premier plot 32 et le second plot 35. Il peut alors faire bouger la bague dans le sens horaire ou le sens anti-horaire afin de modifier la position angulaire du piton 5 comme visible à la figure 6.Once the peak in its desired position, the user removes the tweezers. It can then perform an optional operation of angular adjustment. Indeed, with a base 30 having a ring shape and mounted at the level of the kitten, it is conceivable that the base 30 can be angularly movable. This advantageously makes it possible to modify the angular position of the peak 5 to adjust the running of the watch. For this, the user uses tweezers. It can advantageously place the arms A tweezers on either side of the second stud 35 by pinching via a pressure P "or between the first pad 32 and the second pad 35. It can then move the ring clockwise or counterclockwise to change the angular position of the piton 5 as visible in the figure 6 .

Ces opérations de montage et de réglage sont avantageuses car elles permettent d'avoir un minimum de manipulations et donc d'avoir le minimum de contraintes appliquées sur le spiral. De cette façon, il est envisageable d'avoir un ressort spiral dans un matériau du type silicium, réputé plus cassant que les spiraux métalliques classiques.These assembly and adjustment operations are advantageous because they allow to have a minimum of manipulations and thus to have the minimum of constraints applied to the spiral. In this way, it is conceivable to have a spiral spring in a silicon-type material, considered more brittle than conventional metal spirals.

Pour désengager le piton 5 du porte-piton 3, plusieurs procédures sont possibles.To disengage the bolt 5 from the bolt carrier 3, several procedures are possible.

Une première procédure consiste à utiliser des brucelles, ces brucelles étant un des outils de base d'un horloger. Une fois que l'utilisateur s'est muni de ces brucelles, la procédure peut commencer.A first procedure consists in using tweezers, these tweezers being one of the basic tools of a watchmaker. Once the user has these tweezers, the procedure can begin.

Cette première procédure utilise le même principe que pour l'engagement du piton 5 sur le porte-piton 3. Pour cela, l'utilisateur écarte les bras des brucelles de sorte que l'un des bras prend appui sur le second plot 35 alors que l'autre bras prend appui sur le piton 5 comme visible à la figure 3. Cette disposition des bras des brucelles est agencée de sorte que le second plot 35 et le piton 5 tendent à empêcher les bras des brucelles à reprendre leur position initiale.This first procedure uses the same principle as for the engagement of the stud 5 on the stud holder 3. For this, the user spreads the arms of the tweezers so that one of the arms bears on the second stud 35 while the other arm is supported on the piton 5 as visible in the figure 3 . This arrangement of the tweezers arms is arranged so that the second stud 35 and the stud 5 tend to prevent the arms of the tweezers to return to their original position.

Une fois les brucelles dans la bonne position, l'utilisateur exerce une pression P' sur lesdits bras des brucelles pour essayer de leur faire reprendre leur position initiale. Cette pression exercée par l'utilisateur se transmet au piton 5 qui est, entre le second plot 35 et lui, le seul élément apte à être mobile. De ce fait, le piton 5 exerce une pression sur la base 30 et sur le bras élastique 33. Si la pression exercée par l'utilisateur augmente, celle-ci peut devenir suffisante pour écarter le bras élastique 33. Dans ce cas, le piton 5 sort de l'encoche 36. L'utilisateur peut alors se saisir dudit piton 5 avec ces brucelles et le faire sortir du logement comme visible à la figure 5. Il peut être avantageusement prévu que le second plot 35 soit muni d'une encoche 35' qui fait office de butée pour le piton, ce qui empêche le piton de trop s'éloigner du balancier à cause de l'à-coup, ce qui pourrait casser le spiral.Once the tweezers in the correct position, the user exerts a pressure P 'on said arms tweezers to try to make them resume their original position. This pressure exerted by the user is transmitted to piton 5 which is, between the second pad 35 and him, the only movable element. As a result, the stud 5 exerts pressure on the base 30 and on the elastic arm 33. If the pressure exerted by the user increases, it may become sufficient to move the elastic arm 33 away. In this case, the stud 5 out of the notch 36. The user can then seize said peg 5 with these tweezers and out of the housing as visible in the figure 5 . It may be advantageously provided that the second stud 35 is provided with a notch 35 'which serves as a stop for the pin, which prevents the pin from too far away from the pendulum because of the jerk, which could break the hairspring.

Selon une seconde méthode pour désengager le piton visible à la figure 7, l'utilisateur doit préalablement se munir de brucelles mais aussi d'un second outil du type tournevis T. Une fois équipé, l'utilisateur utilise ses brucelles pour pincer le piton 5 et utilise simultanément le tournevis, préférentiellement un tournevis à tête plate. Ce tournevis T est utilisé de la façon suivante. La tête du tournevis est glissée dans le logement, de préférence en ayant la tête plate s'étendant parallèlement à la base. L'utilisateur effectue alors un mouvement de rotation du tournevis sur lui-même. Cette rotation permet au tournevis d'entrer en contact avec la base et le bras élastique. Si l'utilisateur poursuit son mouvement de rotation du tournevis, un effet de levier se produit, les dimensions du tournevis étant définies pour que cela soit possible. Cet effet de levier entraine alors l'apparition d'une contrainte sur le bras élastique 33 et la base 30. Etant donné que le bras élastique 33 est le seul élément à pouvoir se déformer, cet effet de levier entraine la déformation dudit bras. Cette déformation entraine l'agrandissement du logement 34 et donc une diminution de la contrainte appliquée sur le piton par le bras élastique. Il devient alors possible avec les brucelles de sortir le piton de son logement. Un relâchement de la rotation du tournevis permet audit bras de reprendre sa position initiale.According to a second method for disengaging the visible peak at the figure 7 , the user must previously be equipped with tweezers but also a second tool type screwdriver T. Once equipped, the user uses his tweezers to pinch the stud 5 and simultaneously uses the screwdriver, preferably a flat-head screwdriver. This screwdriver T is used as follows. The screwdriver head is slid into the housing, preferably having the flat head extending parallel to the base. The user then makes a rotational movement of the screwdriver on itself. This rotation allows the screwdriver to contact the base and the elastic arm. If the user continues to rotate the screwdriver, a lever effect occurs, the dimensions of the screwdriver being set for this to be possible. This leverage then causes the appearance of a constraint on the elastic arm 33 and the base 30. Since the elastic arm 33 is the only element to be deformed, this leverage causes the deformation of said arm. This deformation causes the enlargement of the housing 34 and thus a decrease in the stress applied to the peak by the elastic arm. It becomes possible with the tweezers to get out of the piton. Releasing the rotation of the screwdriver allows said arm to resume its initial position.

Dans une variante de l'invention, le piton 5 peut être réalisé de sorte à avoir une forme conique ce qui permet de l'engager verticalement dans le porte-piton dans le cas d'un montage automatique.In a variant of the invention, the stud 5 can be made so as to have a conical shape which allows to engage vertically in the stud holder in the case of an automatic assembly.

On comprendra que diverses modifications et/ou améliorations et/ou combinaisons évidentes pour l'homme du métier peuvent être apportées aux différents modes de réalisation de l'invention exposée ci-dessus sans sortir du cadre de l'invention définie par les revendications annexées.It will be understood that various modifications and / or improvements and / or combinations obvious to those skilled in the art can be made to the various embodiments of the invention set out above without departing from the scope of the invention defined by the appended claims.

Ainsi, on comprendra que l'utilisation du tournevis T peut également servir pour le montage du piton. La tête du tournevis est glissée dans le logement, de préférence en ayant la tête plate s'étendant parallèlement à la base. L'utilisateur effectue alors un mouvement de rotation du tournevis sur lui-même. Cette rotation permet au tournevis d'entrer en contact avec la base et le bras élastique. Si l'utilisateur poursuit son mouvement de rotation du tournevis, un effet de levier se produit, les dimensions du tournevis étant définies pour que cela soit possible. Cet effet de levier entraine alors l'apparition d'une contrainte sur le bras élastique 33 et la base 30. Etant donné que le bras élastique 33 est le seul élément à pouvoir se déformer, cet effet de levier entraine la déformation dudit bras. Cette déformation entraine l'agrandissement du logement 34 et la possibilité de glisser le piton dans le logement.Thus, it will be understood that the use of the screwdriver T can also be used for mounting the stud. The screwdriver head is slid into the housing, preferably having the flat head extending parallel to the base. The user then makes a rotational movement of the screwdriver on itself. This rotation allows the screwdriver to contact the base and the elastic arm. If the user continues to rotate the screwdriver, a lever effect occurs, the dimensions of the screwdriver being set for this to be possible. This leverage then causes the appearance of a constraint on the elastic arm 33 and the base 30. Since the elastic arm 33 is the only element to be able to deform, this leverage causes the deformation of said arm. This deformation causes enlargement of the housing 34 and the possibility of sliding the pin in the housing.

Claims (11)

  1. Holding or support assembly (1) for a timepiece balance spring, comprising a balance spring stud (5) and a stud-holder (3) arranged to be mounted on a balance-cock (2), where said stud-holder comprises a base (30) having at least one circular portion, said base comprising, on said circular portion, a first lug (32) and a second lug (35) each extending radially, the first lug (32) and the second lug (35) being angularly separated by an angle of less than 180 degrees, one of the two lugs comprising an elastic arm (33) extending from the stud, in a direction parallel to that of the base, towards the other lug, characterized in that said elastic arm forms with said base a housing (34) for housing the balance spring stud and in that said first and second lugs are able to cooperate with a tool to apply a stress (P, P') on the balance spring stud (5) which pass the stress (P, P') on to the elastic arm to deform the latter and permit the assembly or disassembly of said stud.
  2. Holding or support assembly (1) for a timepiece balance spring, comprising a balance spring stud (5) and a stud-holder (3) arranged to be mounted on a balance-cock (2), where said stud-holder comprises a base (30) having at least one circular portion, said base comprising, on said circular portion, a first lug (32) and a second lug (35) each extending radially, the first lug (32) and the second lug (35) being angularly separated by an angle of less than 180 degrees, one of the two lugs comprising an elastic arm (33) extending from said stud, in a direction parallel to that of the base, towards the other lug, characterized in that said elastic arm forms with said base a housing (34) for housing the balance spring stud and in that the elastic arm is adapted to be deformed directly by a tool (T) to permit the assembly or disassembly of said stud in the housing.
  3. Holding or support assembly according to claims 1 or 2, characterized in that said stud-holder (3) further comprises a notch (36) arranged on the base so that the balance spring stud can be housed therein.
  4. Holding or support assembly according to claim 2, characterized in that said stud-holder (3) further comprises a notch (36) arranged on the elastic arm (33) so that the balance spring stud can be housed therein.
  5. Method for assembly of a balance spring stud (5) on a stud-holder (3), said stud-holder comprising a base (30) having at least one circular portion attached to a balance-cock (2), said base comprising, on said circular portion, a first lug (32) and a second lug (35) each extending radially; the first lug comprising an elastic arm (33) extending from the end thereof, in a direction parallel to that of the base, towards the second lug, said elastic arm forming with said base a housing (34) for housing the balance spring stud, said method comprising the following steps:
    - taking a tool comprising two arms capable of performing a pinching action;
    - placing the balance spring stud at the entrance to the housing;
    - operating said tool so that one arm of the tool rests on the first lug provided with the elastic arm and so that the other arm of the tool rests on the balance spring stud, said tool being operated such that said first lug and said balance spring stud prevent said arms moving closer together;
    - exerting a force on the arms of the tool intended to move them closer together so that the balance spring stud exerts a stress on the elastic arm, the force exerted by the arms of the tool is increased so that the stress exerted by the balance spring stud on the elastic arm causes a deformation thereof allowing said balance spring stud to be inserted inside the housing.
  6. Method for assembly of a balance spring stud (5) on a stud-holder (3), said stud-holder comprising a base (30) having at least one circular portion attached to a balance-cock (2), said base comprising, on said circular portion, a first lug (32) and a second lug (35) each extending radially; the first lug comprising an elastic arm (33) extending from the end thereof, in a direction parallel to that of the base, towards the second lug, said elastic arm forming with said base a housing (34) for housing the balance spring stud, said method comprising the following steps:
    - taking in advance a first tool capable of pinching the spring stud (5), and a second tool capable of deforming the elastic arm (33);
    - placing the balance spring stud at the entrance to the housing by pinching it via the first tool;
    - operating said second tool to lever and deform the elastic arm, allowing the housing to become wider to house said balance spring stud therein.
  7. Assembly method according to claims 5 or 6, characterized in that the base (30) is a ring, said stud-holder further includes a notch (36) aranged such that the balance spring stud can be housed therein.
  8. Assembly method according to any of claims 5 to 7, characterized in that the balance-cock (2) further includes a pivot device (4) of circular shape, said base (30) being entirely circular and mounted on said pivot device, and in that said assembly method further comprises an additional step consisting in using the tool to pinch the second lug and set the base in rotation with respect to the pivot device.
  9. Method for disassembly of a balance spring stud (5) from a stud-holder (3), said stud-holder comprising a base (30) having at least one circular portion attached to a balance-cock (2), said base comprising, on said circular portion, a first lug (32) and a second lug (35) each extending radially; the first lug comprising an elastic arm (33) extending from the end thereof, in a direction parallel to that of the base, towards the second lug, said elastic arm forming with said base a housing (34) for housing the balance spring stud, said method comprising the following steps:
    - taking a tool capable of performing a pinching action with two arms;
    - operating said tool so that one arm of the tool rests on the second lug and so that the other arm of the tool rests on the balance spring stud, said tool being operated such that said second lug and said balance spring stud prevent said arms moving closer together;
    - exerting a force on the arms of the tool intended to move them closer together so that the balance spring stud exerts a stress on the elastic arm, the force exerted by the arm of the tool is increased so that the stress exerted by the balance spring stud on the elastic arm causes a deformation thereof allowing said balance spring stud to leave the housing.
  10. Method for disassembly of a balance spring stud (5) from a stud-holder (3), said stud-holder comprising a base (30) having at least one circular portion attached to a balance-cock (2), said base comprising, on said circular portion, a first lug (32) and a second lug (35) each extending radially; the first lug comprising an elastic arm (33) extending from the end thereof, in a direction parallel to that of the base, towards the second lug, said elastic arm forming with said base a housing (34) for housing the balance spring stud, said method comprising the following steps:
    - taking in advance a first tool capable of pinching the spring stud (5), and a second tool capable of deforming the elastic arm (33);
    - placing the balance spring stud at the entrance to the housing by pinching it via the first tool;
    - operating said second tool to lever and deform the elastic arm, allowing the housing to become wider to remove said balance spring stud.
  11. Disassembly method according to any of claims 9 or 10, characterized in that said stud-holder (3) also includes a notch (36) arranged such that the balance spring stud can be housed therein, the force exerted by the arms of said tool and transmitted to the elastic arm via the stud is sufficient to remove the stud from the notch.
EP15199633.7A 2015-12-11 2015-12-11 Stud support with simplified assembly Active EP3179314B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP15199633.7A EP3179314B1 (en) 2015-12-11 2015-12-11 Stud support with simplified assembly
US15/339,322 US10222747B2 (en) 2015-12-11 2016-10-31 Balance spring stud-holder with simplied assembly
JP2016220228A JP6326116B2 (en) 2015-12-11 2016-11-11 Balance spring stud holder for easy assembly
CN201611128164.8A CN106873342B (en) 2015-12-11 2016-12-09 Simplify the hairspring stud holder of assembling
US15/936,116 US11073796B2 (en) 2015-12-11 2018-03-26 Balance spring stud-holder with simplied assembly

Applications Claiming Priority (1)

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EP15199633.7A EP3179314B1 (en) 2015-12-11 2015-12-11 Stud support with simplified assembly

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EP3179314B1 true EP3179314B1 (en) 2018-11-14

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EP3451076B1 (en) * 2017-08-31 2020-07-29 ETA SA Manufacture Horlogère Suisse Stud-holder for a mechanical clockwork movement
EP3839656B1 (en) * 2019-12-18 2023-12-13 Nivarox-FAR S.A. Horological balance
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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EP3179314A1 (en) 2017-06-14
CN106873342A (en) 2017-06-20
US10222747B2 (en) 2019-03-05
CN106873342B (en) 2019-06-11
JP2017106905A (en) 2017-06-15
US20180217556A1 (en) 2018-08-02
JP6326116B2 (en) 2018-05-16
US11073796B2 (en) 2021-07-27
US20170168456A1 (en) 2017-06-15

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