EP1868045A1 - Horological collet - Google Patents

Horological collet Download PDF

Info

Publication number
EP1868045A1
EP1868045A1 EP06012021A EP06012021A EP1868045A1 EP 1868045 A1 EP1868045 A1 EP 1868045A1 EP 06012021 A EP06012021 A EP 06012021A EP 06012021 A EP06012021 A EP 06012021A EP 1868045 A1 EP1868045 A1 EP 1868045A1
Authority
EP
European Patent Office
Prior art keywords
ferrule
spiral
junction
axis
zone
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
EP06012021A
Other languages
German (de)
French (fr)
Other versions
EP1868045B1 (en
Inventor
Stéphane von Gunten
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.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP06012021.9A priority Critical patent/EP1868045B1/en
Publication of EP1868045A1 publication Critical patent/EP1868045A1/en
Application granted granted Critical
Publication of EP1868045B1 publication Critical patent/EP1868045B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
    • G04B17/345—Details of the spiral roll

Definitions

  • the present invention relates to a timepiece ferrule, more specifically a ferrule for fixing the inner end of a spiral to the axis of a balance.
  • a disadvantage of certain conventional ferrules, particularly elastic ferrules, is that the distance between the junction point of the spiral to the ferrule and the center of the balance shaft is modified during the driving of the ferrule on the balance shaft, which offsets the hairspring and thus damages the isochronism of the sprung balance.
  • the present invention aims to propose another solution to maintain the distance between the junction point of the spiral to the ferrule and the center of the balance shaft substantially constant during driving, in particular a solution that does not require or provide a frame externally, or to give the whole shell a particular form.
  • a ferrule according to claim 1 attached, a spiral-ferrule assembly according to claim 14, a method of designing a ferrule according to claim 19 and a method of producing a ferrule according to claim 25.
  • Particular embodiments of the invention are defined in dependent claims 2 to 13, 15 to 18 and 20 to 24.
  • a ferrule 1 for fixing the inner end of a spiral 2 to the axis 6 of a pendulum in a clockwork movement, comprises three elastic arms 3 arranged in triangle.
  • the elastic arms 3 define an equilateral triangular central opening 4 whose diameter of the inscribed circle is slightly smaller than the diameter of a cylindrical or slightly frustoconical bearing surface 5 of the balance shaft 6, so that the axis 6 can be driven into the ferrule 1, which deformation elastically deforms the arms 3 towards the outside of the shell 1.
  • the inner end of the spiral 2 is attached to the shell 1 at a point 8 of one, 7a, of the three zones 7a, 7b , 7c junction between 3.
  • the ferrule 1 When the ferrule 1 is driven on the axis 6, this inner end of the spiral is secured to the axis 6 and therefore follows the oscillating movements of the balance.
  • the outer end of the hairspring 2, not shown, is fixed by a peg to a fixed part of the watch movement, typically the rooster, in a known manner.
  • the triangular shape of the opening 4 allows precise contact between the axis 6 and the shell 1, in three discrete contact points 9.
  • the width of the elastic arms 3 is preferably variable to make more homogeneous the distribution of stresses exerted by the axis 6 and thus allow to increase the clamping force of the axis 6 and / or the deformation of the elastic arms 3, in the manner of the elastic arms of the ferrule according to the document EP 1 637 940 . More specifically, the width of each arm has maxima L0, L1, L2 where forces are applied, that is to say at the point 9 of contact with the axis 6 and at both ends of the arm 3, and minima L3, L4 where the stresses are lowest, that is to say at points located between the point of contact 9 and the two ends of the arm 3.
  • the zone 7a of junction of the arms 3 to which is connected the spiral 2 is specially shaped so that the distance R between the point 8 of junction between the spiral 2 and the shell 1 and the center O (in the plane of the ferrule 1) of the axis 6 is not substantially modified by the driving of the ferrule 1 on the axis 6. It can be seen in Figure 1 that the zone 7a does not have the same shape as the others junction areas 7b, 7c. Zone 7a has indeed, unlike zones 7b, 7c, lateral recesses 10.
  • FIG. 2 shows by small arrows the direction of the local deformations undergone by a ferrule 1 'identical to the ferrule 1 but not comprising not the recesses 10, under the effect of radial forces F exerted by the axis 6 at the contact points 9.
  • the zone 7a of junction between the arms 3, like the other two junction areas 7b, 7c, comprises a part of least deformation or "knot" 11, that is to say a part which does not deform or little and which in any case deforms less than the rest of the zone 7a.
  • the node 11 is located in the central angular portion of the angular sector 12 of vertex center O of the axis 6 and in which is inscribed the zone 7a.
  • the node 11 is closer to the inner contour of the ferrule 1 '.
  • the local deformations tend to bypass this node 11 and to distance the material , in particular the junction point 8 between the spiral 2 and the ferrule 1 ', of the center O.
  • the present invention proposes to remove from the junction zone 7a, during the design of the shell, parts of which the deformation significantly contributes to the distance of the junction point 8.
  • it removes left and right side portions 14 located in the immediate vicinity of the node 11 and farther from the center O than the node 11.
  • the two resulting recesses 10 define an intermediate portion 15 between the junction point 8 and the node 11.
  • This intermediate portion 15 is narrower (in the direction orthogonal to the radial axis 13) than the rest of the junct area 7a and in particular that the inner portion 19 of the zone 7a including the node 11.
  • This intermediate portion 15 is also located in the central angular portion of the angular sector 12 in which the junction area 7a is inscribed, as the node 11 .
  • the recesses 10 prevent the deformations of the two parts 16 of the junction 7a located to the right and left of the node 11 and substantially at the same distance from the center O as the node 11, deformations which tend to bypass the node 11, are transmitted to the intermediate portion 15 and the junction point 8.
  • the intermediate part 15 thus deforms very little during the driving of the axis 6 in the shell 1, so that the point of junction 8 moves very little.
  • a change in the distance R between the point 8 and the center O much lower than the generally accepted maximum value, 5 microns, can thus be obtained.
  • a modification of the distance R of less than 0.1 ⁇ m may even be obtained, as shown in FIG. 4, where the gray parts correspond to post-driving deformations greater than 0.1 ⁇ m and the white parts correspond to lower strains after driving. at 0.1 ⁇ m. It can be seen in this FIG. 4 that the deformations less than 0.1 ⁇ m relate to the spiral 2, the intermediate portion 15, the node 11 of the junction zone 7a and the nodes 17 of the two other junction zones between the arms 3.
  • the very slight change in the distance R mentioned above can be obtained without weakening to a great extent the junction zone 7a.
  • the intermediate portion 15 of the junction zone 7a defined by the recesses 10, although narrower than the rest of the junction zone 7a, can indeed maintain a sufficient width, greater than that of the turns of the spiral 2, to avoid to deform during the operation of the spiral 2 (pendulum oscillations).
  • the width of the intermediate portion 15 is typically equal to about three times the width of the turns of the hairspring 2.
  • FIG. 5 shows another embodiment of the ferrule 1 according to the invention, wherein the recesses are notches 18 made transversely to the radial axis 13 on each side of the junction zone 7a near the node 11. These notches 18 define an intermediate portion 15 between the junction point 8 and the node 11, intermediate portion 15 which is narrower than the inner portion 19 of the zone 7a including the node 11 and an outer portion 21 of the zone 7a including the junction point 8.
  • the ferrule according to the invention and its method of realization have the advantage in particular of not requiring that the entire shape of the ferrule be designed in order to maintain substantially constant the distance between the junction point of the spiral to the ferrule and the center of the axis.
  • the arms 3 of the ferrule may have a particular shape, with variable width, to increase the clamping force of the axis 6 and / or the deformation of the arms 3 by distributing
  • the ferrule further comprises abutments formed by discrete portions 20a, 20b and 20c of the invention.
  • stops 20a, 20b, 20c are located at respective distances Ra, Rb, Rc of the center O which are small enough not to interfere with the normal operation of the hairspring 2 but large enough, in the event of shock suffered by the movement, to allow the inner turn of the hairspring 2 to abut against one or more stops 20a, 20b and 20c before the elastic limit of this inner turn, including at the junction point 8, is exceeded.
  • the risks of rupture of the balance spring 3 during an impact are thus reduced.
  • the abutments 20a, 20b and 20c typically have an arcuate shape of center O and radii Ra, Rb and Rc respectively.
  • these distances or radii Ra, Rb and Rc grow in the direction D of winding of the spiral 2 going from the inside to the outside from the point 8 of junction of the spiral 2 to the shell 1, this to take into account in that the radius of the inner turn of the spiral 2, like that of all the other turns, increases in this direction D.
  • the stop 20b closest to the junction point 8 in the direction D is at a distance Rb from center O which is smaller than the distance Rc separating the next stop 10c from the center O, which is smaller than the distance Ra separating the next stop 10a from the center O.
  • the distance R8 separating the point 8 of junction between the hairspring 2 and the ferrule 1 of the center O is it typically greater than or equal to the distance Rb and less than the distances Rc and Ra.
  • the principle of the present invention can be applied to other ferrule shapes than the triangular shape shown in the figures. 1 and 5, for example to other polygonal shapes, regular or not, or even non-polygonal shapes.
  • the ferrule according to the invention could thus, in a variant, have the conventional general shape of a split annular ring, with the junction point of the spiral to the ferrule located opposite the slot.
  • the ferrule could be considered as comprising two deformable arms whose junction zone comprises the junction point of the spiral to the ferrule.
  • the present invention does not exclude the presence of such a frame.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Springs (AREA)

Abstract

The collet (1) has a junction point (8) with an inner end of a hairspring (2), and a lateral recess (10) provided on a zone (7a) of the junction point, where the zone is a junction zone between elastic deformable arms (3). The recess is conformed so that the distance (R) between the junction point and a center (O) of a balance staff (6) is not modified during driving of the collet on the balance staff, where the collet has triangular shape. Independent claims are also included for the following: (1) a hairspring-collet assembly (2) a method for designing a collet of a clock (3) a method for forming a collet.

Description

La présente invention concerne une virole d'horlogerie, plus précisément une virole pour la fixation de l'extrémité intérieure d'un spiral à l'axe d'un balancier.The present invention relates to a timepiece ferrule, more specifically a ferrule for fixing the inner end of a spiral to the axis of a balance.

Un inconvénient de certaines viroles conventionnelles, particulièrement les viroles élastiques, est que la distance entre le point de jonction du spiral à la virole et le centre de l'axe de balancier est modifiée lors du chassage de la virole sur l'axe de balancier, ce qui décentre le spiral et nuit donc à l'isochronisme du balancier-spiral.A disadvantage of certain conventional ferrules, particularly elastic ferrules, is that the distance between the junction point of the spiral to the ferrule and the center of the balance shaft is modified during the driving of the ferrule on the balance shaft, which offsets the hairspring and thus damages the isochronism of the sprung balance.

Des solutions ont été proposées pour remédier à cet inconvénient. Dans les documents EP 1 513 029 et EP 1 637 940 est décrite une virole comprenant des bras élastiques disposés en triangle et un cadre externe qui rigidifie les zones de jonction entre les bras élastiques, en particulier la zone de jonction où se situe le point de jonction entre le spiral et la virole. Dans le document EP 1 584 994 est décrite une virole constituée par une bande métallique et dont la forme est spécialement choisie, avec une largeur et une répartition angulaire des points de contact avec l'axe de balancier variables, pour que la distance entre le point de jonction avec le spiral et le centre de l'axe de balancier soit sensiblement la même après chassage.Solutions have been proposed to overcome this disadvantage. In documents EP 1,513,029 and EP 1 637 940 is described a ferrule comprising resilient arms arranged in a triangle and an outer frame that stiffens the junction areas between the elastic arms, in particular the junction zone where the junction point between the spiral and the ferrule is located. In the document EP 1 584 994 is described a ferrule constituted by a metal strip and whose shape is specially chosen, with a width and an angular distribution of the points of contact with the variable balance axis, so that the distance between the junction point with the spiral and the center of the balance shaft is substantially the same after driving.

La présente invention vise à proposer une autre solution pour maintenir la distance entre le point de jonction du spiral à la virole et le centre de l'axe de balancier sensiblement constante lors du chassage, en particulier une solution qui ne nécessite ni de prévoir un cadre externe ni de donner à toute la virole une forme particulière.The present invention aims to propose another solution to maintain the distance between the junction point of the spiral to the ferrule and the center of the balance shaft substantially constant during driving, in particular a solution that does not require or provide a frame externally, or to give the whole shell a particular form.

A cette fin il est prévu une virole selon la revendication 1 annexée, un ensemble spiral-virole selon la revendication 14, un procédé de conception d'une virole selon la revendication 19 et un procédé de réalisation d'une virole selon la revendication 25. Des modes de réalisation particuliers de l'invention sont définis dans les revendications dépendantes 2 à 13, 15 à 18 et 20 à 24.For this purpose there is provided a ferrule according to claim 1 attached, a spiral-ferrule assembly according to claim 14, a method of designing a ferrule according to claim 19 and a method of producing a ferrule according to claim 25. Particular embodiments of the invention are defined in dependent claims 2 to 13, 15 to 18 and 20 to 24.

D'autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée suivante faite en référence aux dessins annexés dans lesquels :

  • la figure 1 montre une virole selon un premier mode de réalisation de l'invention, à laquelle est rattachée l'extrémité intérieure d'un spiral (montré partiellement), la virole étant chassée sur un axe de balancier ;
  • la figure 2 montre le dessin d'une virole servant de base à la conception de la virole selon l'invention, cette virole de base étant représentée de manière exagérée dans un état déformé sous l'effet de forces radiales exercées par un axe chassé dans cette virole ;
  • la figure 3 montre de manière exagérée les déformations locales de la virole selon l'invention causées par le chassage de l'axe de balancier dans cette virole ;
  • la figure 4 montre de manière exagérée la virole selon l'invention avec son spiral (montré partiellement) telle que déformée après son chassage sur l'axe de balancier, les parties en gris correspondant à des déformations supérieures à 0,1 µm et les parties en blanc correspondant à des déformations inférieures à 0,1 µm ; et
  • la figure 5 montre une virole selon un second mode de réalisation de l'invention, avec son spiral (montré partiellement).
Other features and advantages of the present invention will appear on reading the following detailed description given with reference to the accompanying drawings in which:
  • Figure 1 shows a ferrule according to a first embodiment of the invention, to which is attached the inner end of a spiral (shown partially), the ferrule being driven on a balance shaft;
  • FIG. 2 shows the design of a ferrule serving as a basis for the design of the ferrule according to the invention, this base ferrule being represented in an exaggerated manner in a deformed state under the effect of radial forces exerted by a driven shaft in this ferrule;
  • FIG. 3 shows, in an exaggerated manner, the local deformations of the ferrule according to the invention caused by the driving of the balance shaft in this ferrule;
  • FIG. 4 shows, in an exaggerated manner, the ferrule according to the invention with its spiral (shown partially) as deformed after its driving on the balance shaft, the gray parts corresponding to deformations greater than 0.1 μm and the parts in white corresponding to deformations less than 0.1 μm; and
  • Figure 5 shows a ferrule according to a second embodiment of the invention, with its spiral (shown partially).

En référence à la figure 1, une virole 1 selon l'invention, pour la fixation de l'extrémité intérieure d'un spiral 2 à l'axe 6 d'un balancier dans un mouvement d'horlogerie, comprend trois bras élastiques 3 disposés en triangle. Les bras élastiques 3 définissent une ouverture centrale triangulaire équilatérale 4 dont le diamètre du cercle inscrit est légèrement inférieur au diamètre d'une portée cylindrique ou légèrement tronconique 5 de l'axe de balancier 6, de sorte que l'axe 6 peut être chassé dans la virole 1, chassage qui déforme élastiquement les bras 3 vers l'extérieur de la virole 1. L'extrémité intérieure du spiral 2 est rattachée à la virole 1 en un point 8 de l'une, 7a, des trois zones 7a, 7b, 7c de jonction entre les bras 3. Lorsque la virole 1 est chassée sur l'axe 6, cette extrémité intérieure du spiral est solidaire de l'axe 6 et suit donc les mouvements oscillants du balancier. L'extrémité extérieure du spiral 2, non représentée, est elle fixée par un piton à une pièce fixe du mouvement d'horlogerie, typiquement le coq, de manière connue. La forme triangulaire de l'ouverture 4 permet un contact précis entre l'axe 6 et la virole 1, en trois points de contact discrets 9.Referring to Figure 1, a ferrule 1 according to the invention, for fixing the inner end of a spiral 2 to the axis 6 of a pendulum in a clockwork movement, comprises three elastic arms 3 arranged in triangle. The elastic arms 3 define an equilateral triangular central opening 4 whose diameter of the inscribed circle is slightly smaller than the diameter of a cylindrical or slightly frustoconical bearing surface 5 of the balance shaft 6, so that the axis 6 can be driven into the ferrule 1, which deformation elastically deforms the arms 3 towards the outside of the shell 1. The inner end of the spiral 2 is attached to the shell 1 at a point 8 of one, 7a, of the three zones 7a, 7b , 7c junction between 3. When the ferrule 1 is driven on the axis 6, this inner end of the spiral is secured to the axis 6 and therefore follows the oscillating movements of the balance. The outer end of the hairspring 2, not shown, is fixed by a peg to a fixed part of the watch movement, typically the rooster, in a known manner. The triangular shape of the opening 4 allows precise contact between the axis 6 and the shell 1, in three discrete contact points 9.

En référence encore à la figure 1, la largeur des bras élastiques 3 est de préférence variable pour rendre plus homogène la répartition des contraintes exercées par l'axe 6 et ainsi permettre d'augmenter la force de serrage de l'axe 6 et/ou la déformation des bras élastiques 3, à la manière des bras élastiques de la virole selon le document EP 1 637 940 . Plus précisément, la largeur de chaque bras présente des maxima L0, L1, L2 là où des forces sont appliquées, c'est-à-dire au niveau du point 9 de contact avec l'axe 6 et aux deux extrémités du bras 3, et des minima L3, L4 là où les contraintes sont les moins élevées, c'est-à-dire en des points situés entre le point de contact 9 et les deux extrémités du bras 3.Referring again to Figure 1, the width of the elastic arms 3 is preferably variable to make more homogeneous the distribution of stresses exerted by the axis 6 and thus allow to increase the clamping force of the axis 6 and / or the deformation of the elastic arms 3, in the manner of the elastic arms of the ferrule according to the document EP 1 637 940 . More specifically, the width of each arm has maxima L0, L1, L2 where forces are applied, that is to say at the point 9 of contact with the axis 6 and at both ends of the arm 3, and minima L3, L4 where the stresses are lowest, that is to say at points located between the point of contact 9 and the two ends of the arm 3.

Conformément à l'invention, la zone 7a de jonction des bras 3 à laquelle est connecté le spiral 2 est spécialement conformée pour que la distance R entre le point 8 de jonction entre le spiral 2 et la virole 1 et le centre O (dans le plan de la virole 1) de l'axe 6 ne soit sensiblement pas modifiée par le chassage de la virole 1 sur l'axe 6. On peut voir sur la figure 1 que la zone 7a n'a pas la même forme que les autres zones de jonction 7b, 7c. La zone 7a comporte en effet, à la différence des zones 7b, 7c, des évidements latéraux 10.According to the invention, the zone 7a of junction of the arms 3 to which is connected the spiral 2 is specially shaped so that the distance R between the point 8 of junction between the spiral 2 and the shell 1 and the center O (in the plane of the ferrule 1) of the axis 6 is not substantially modified by the driving of the ferrule 1 on the axis 6. It can be seen in Figure 1 that the zone 7a does not have the same shape as the others junction areas 7b, 7c. Zone 7a has indeed, unlike zones 7b, 7c, lateral recesses 10.

Pour comprendre comment la forme, la position et les dimensions des évidements 10 sont choisies, on peut se reporter à la figure 2 qui représente par des petites flèches la direction des déformations locales subies par une virole 1' identique à la virole 1 mais ne comportant pas les évidements 10, sous l'effet de forces radiales F exercées par l'axe 6 aux points de contact 9. On constate que la zone 7a de jonction entre les bras 3, comme les deux autres zones de jonction 7b, 7c, comprend une partie de moindre déformation ou « noeud » 11, c'est-à-dire une partie qui ne se déforme pas ou peu et qui en tout cas se déforme moins que le reste de la zone 7a. Dans l'exemple illustré, du fait du caractère sensiblement symétrique de la virole 1, le noeud 11 est situé dans la partie angulaire centrale du secteur angulaire 12 de sommet le centre O de l'axe 6 et dans lequel est inscrit la zone 7a. Le noeud 11 est de plus proche du contour interne de la virole 1'. A droite et à gauche de ce noeud 11, par rapport à un axe radial 13 passant par le centre O de l'axe 6 et par le centre du noeud 11, les déformations locales ont tendance à contourner ce noeud 11 et à éloigner la matière, en particulier le point 8 de jonction entre le spiral 2 et la virole 1', du centre O. Pour diminuer cet effet, la présente invention propose d'enlever de la zone de jonction 7a, lors de la conception de la virole, des parties dont la déformation contribue de manière sensible à l'éloignement du point de jonction 8. Dans l'exemple illustré, on enlève des parties latérales gauche et droite 14 situées dans la proximité immédiate du noeud 11 et plus éloignées du centre O que le noeud 11. Les deux évidements 10 qui en résultent (figure 1) définissent une partie intermédiaire 15 entre le point de jonction 8 et le noeud 11. Cette partie intermédiaire 15 est moins large (dans la direction orthogonale à l'axe radial 13) que le reste de la zone de jonction 7a et en particulier que la partie intérieure 19 de la zone 7a incluant le noeud 11. Cette partie intermédiaire 15 est de plus située dans la partie angulaire centrale du secteur angulaire 12 dans lequel est inscrit la zone de jonction 7a, comme le noeud 11.To understand how the shape, the position and the dimensions of the recesses 10 are chosen, reference can be made to FIG. 2, which shows by small arrows the direction of the local deformations undergone by a ferrule 1 'identical to the ferrule 1 but not comprising not the recesses 10, under the effect of radial forces F exerted by the axis 6 at the contact points 9. It is noted that the zone 7a of junction between the arms 3, like the other two junction areas 7b, 7c, comprises a part of least deformation or "knot" 11, that is to say a part which does not deform or little and which in any case deforms less than the rest of the zone 7a. In the illustrated example, because of the substantially symmetrical nature of the ferrule 1, the node 11 is located in the central angular portion of the angular sector 12 of vertex center O of the axis 6 and in which is inscribed the zone 7a. The node 11 is closer to the inner contour of the ferrule 1 '. To the right and to the left of this node 11, with respect to a radial axis 13 passing through the center O of the axis 6 and the center of the node 11, the local deformations tend to bypass this node 11 and to distance the material , in particular the junction point 8 between the spiral 2 and the ferrule 1 ', of the center O. To reduce this effect, the present invention proposes to remove from the junction zone 7a, during the design of the shell, parts of which the deformation significantly contributes to the distance of the junction point 8. In the example shown, it removes left and right side portions 14 located in the immediate vicinity of the node 11 and farther from the center O than the node 11. The two resulting recesses 10 (FIG. 1) define an intermediate portion 15 between the junction point 8 and the node 11. This intermediate portion 15 is narrower (in the direction orthogonal to the radial axis 13) than the rest of the junct area 7a and in particular that the inner portion 19 of the zone 7a including the node 11. This intermediate portion 15 is also located in the central angular portion of the angular sector 12 in which the junction area 7a is inscribed, as the node 11 .

Comme montré à la figure 3, où les flèches indiquent la direction des déformations locales subies par la virole 1 mais aussi, par leur longueur, l'intensité de ces déformations, les évidements 10 empêchent que les déformations des deux parties 16 de la zone de jonction 7a situées à droite et à gauche du noeud 11 et sensiblement à la même distance du centre O que le noeud 11, déformations qui ont tendance à contourner le noeud 11, soient transmises à la partie intermédiaire 15 et au point de jonction 8. La partie intermédiaire 15 se déforme donc très peu lors du chassage de l'axe 6 dans la virole 1, de sorte que le point de jonction 8 se déplace très peu. Une modification de la distance R entre le point 8 et le centre O très inférieure à la valeur maximale généralement admise, 5 µm, peut ainsi être obtenue. Une modification de la distance R inférieure à 0,1 µm peut même être obtenue, comme montré à la figure 4 où les parties grises correspondent à des déformations après chassage supérieures à 0,1 µm et les parties blanches correspondent à des déformations après chassage inférieures à 0,1 µm. On peut constater sur cette figure 4 que les déformations inférieures à 0,1 µm concernent le spiral 2, la partie intermédiaire 15, le noeud 11 de la zone de jonction 7a et des noeuds 17 des deux autres zones de jonction entre les bras 3.As shown in FIG. 3, where the arrows indicate the direction of the local deformations experienced by the ferrule 1 but also, by their length, the intensity of these deformations, the recesses 10 prevent the deformations of the two parts 16 of the junction 7a located to the right and left of the node 11 and substantially at the same distance from the center O as the node 11, deformations which tend to bypass the node 11, are transmitted to the intermediate portion 15 and the junction point 8. The intermediate part 15 thus deforms very little during the driving of the axis 6 in the shell 1, so that the point of junction 8 moves very little. A change in the distance R between the point 8 and the center O much lower than the generally accepted maximum value, 5 microns, can thus be obtained. A modification of the distance R of less than 0.1 μm may even be obtained, as shown in FIG. 4, where the gray parts correspond to post-driving deformations greater than 0.1 μm and the white parts correspond to lower strains after driving. at 0.1 μm. It can be seen in this FIG. 4 that the deformations less than 0.1 μm relate to the spiral 2, the intermediate portion 15, the node 11 of the junction zone 7a and the nodes 17 of the two other junction zones between the arms 3.

La très faible modification de la distance R mentionnée ci-dessus peut être obtenue sans fragiliser dans une trop grande mesure la zone de jonction 7a. La partie intermédiaire 15 de la zone de jonction 7a définie par les évidements 10, bien que moins large que le reste de la zone de jonction 7a, peut en effet conserver une largeur suffisante, supérieure à celle des spires du spiral 2, pour ne pas se déformer lors du fonctionnement du spiral 2 (oscillations du balancier). La largeur de la partie intermédiaire 15 est typiquement égale à environ trois fois la largeur des spires du spiral 2.The very slight change in the distance R mentioned above can be obtained without weakening to a great extent the junction zone 7a. The intermediate portion 15 of the junction zone 7a defined by the recesses 10, although narrower than the rest of the junction zone 7a, can indeed maintain a sufficient width, greater than that of the turns of the spiral 2, to avoid to deform during the operation of the spiral 2 (pendulum oscillations). The width of the intermediate portion 15 is typically equal to about three times the width of the turns of the hairspring 2.

Les évidements pratiqués dans la zone de jonction 7a pour maintenir sensiblement constante la distance R lors du chassage n'ont pas nécessairement la forme des évidements 10 illustrés aux figures 1, 3 et 4. La figure 5 montre un autre mode de réalisation de la virole 1 selon l'invention, dans lequel les évidements sont des entailles 18 pratiquées transversalement à l'axe radial 13 de chaque côté de la zone de jonction 7a à proximité du noeud 11. Ces entailles 18 définissent une partie intermédiaire 15 entre le point de jonction 8 et le noeud 11, partie intermédiaire 15 qui est moins large que la partie intérieure 19 de la zone 7a incluant le noeud 11 et qu'une partie extérieure 21 de la zone 7a incluant le point de jonction 8.The recesses made in the junction zone 7a to keep the distance R substantially constant during the driving operation do not necessarily have the shape of the recesses 10 illustrated in FIGS. 1, 3 and 4. FIG. 5 shows another embodiment of the ferrule 1 according to the invention, wherein the recesses are notches 18 made transversely to the radial axis 13 on each side of the junction zone 7a near the node 11. These notches 18 define an intermediate portion 15 between the junction point 8 and the node 11, intermediate portion 15 which is narrower than the inner portion 19 of the zone 7a including the node 11 and an outer portion 21 of the zone 7a including the junction point 8.

En pratique, et d'une manière générale, la virole selon l'invention est réalisée en mettant en oeuvre les étapes suivantes :

  1. a) dessiner une virole, la forme de cette virole pouvant être choisie selon des critères indépendants de la question de la modification de la distance R lors du chassage de la virole sur l'axe, par exemple pour augmenter la force de serrage de l'axe et/ou la déformation des bras élastiques de la virole,
  2. b) calculer les déformations locales subies par la virole, plus particulièrement les déformations locales subies dans la zone du point de jonction entre le spiral et la virole, lors du chassage de la virole sur l'axe,
  3. c) modifier le dessin de la virole en enlevant de ladite zone une ou des parties dont les déformations contribuent à modifier la distance R, et
  4. d) fabriquer la virole selon le dessin ainsi modifié.
Les étapes a) et c) sont typiquement effectuées par CAO (conception assistée par ordinateur) et l'étape b) par la méthode des éléments finis. La virole selon l'invention est de préférence fabriquée d'un seul tenant avec le spiral. Dans un exemple de réalisation, l'ensemble unitaire spiral-virole est fabriqué en une matière à base de silicium au moyen du procédé de gravure profonde DRIE (Deep Reaction Ion Etching).In practice, and in a general manner, the ferrule according to the invention is produced by implementing the following steps:
  1. a) draw a ferrule, the shape of this ferrule may be chosen according to criteria independent of the question of the change in the distance R when driving the ferrule on the axis, for example to increase the clamping force of the axis and / or the deformation of the elastic arms of the ferrule,
  2. b) calculate the local deformations undergone by the ferrule, more particularly the local deformations undergone in the zone of the junction point between the spiral and the ferrule, during the driving of the ferrule on the axis,
  3. c) modifying the drawing of the ferrule by removing from said zone one or more parts whose deformations contribute to modifying the distance R, and
  4. d) manufacture the ferrule according to the drawing thus modified.
Steps a) and c) are typically done by CAD (computer-aided design) and step b) by the finite element method. The ferrule according to the invention is preferably manufactured in one piece with the spiral. In an exemplary embodiment, the unitary spiral-ferrule assembly is made of a silicon-based material by means of deep etching process DRIE (Deep Reaction Ion Etching).

On notera que la virole selon l'invention et sa méthode de réalisation ont pour avantage notamment de ne pas nécessiter que la forme entière de la virole soit dessinée dans le but de maintenir sensiblement constante la distance entre le point de jonction du spiral à la virole et le centre de l'axe. Ainsi, comme déjà expliqué en référence à la figure 1, les bras 3 de la virole peuvent avoir une forme particulière, à largeur variable, pour augmenter la force de serrage de l'axe 6 et/ou la déformation des bras 3 en répartissant de manière plus homogène les contraintes à l'intérieur des bras 3. Dans l'exemple de la figure 5, et selon une autre caractéristique de l'invention, la virole comporte en outre des butées formées par des parties discrètes 20a, 20b et 20c du contour externe de la virole, au niveau des zones de jonction 7a, 7b, 7c respectivement, Ces butées 20a, 20b, 20c sont situées à des distances respectives Ra, Rb, Rc du centre O qui sont suffisamment petites pour ne pas gêner le fonctionnement normal du spiral 2 mais suffisamment grandes pour, en cas de choc subi par le mouvement, permettre à la spire intérieure du spiral 2 de venir s'appuyer contre une ou plusieurs des butées 20a, 20b et 20c avant que la limite élastique de cette spire intérieure, y compris au niveau du point de jonction 8, soit dépassée. Les risques de rupture du spiral 3 lors d'un choc sont ainsi réduits. Les butées 20a, 20b et 20c ont typiquement une forme en arc de cercle de centre O et de rayons Ra, Rb et Rc respectivement. Avantageusement, ces distances ou rayons Ra, Rb et Rc croissent dans le sens D d'enroulement du spiral 2 allant de l'intérieur vers l'extérieur à partir du point 8 de jonction du spiral 2 à la virole 1, ceci pour tenir compte du fait que le rayon de la spire intérieure du spiral 2, comme celui de toutes les autres spires, croît dans ce sens D. Ainsi, la butée 20b la plus proche du point de jonction 8 dans le sens D est à une distance Rb du centre O qui est plus petite que la distance Rc séparant la butée suivante 10c du centre O, laquelle est plus petite que la distance Ra séparant la butée suivante 10a du centre O. La distance R8 séparant le point 8 de jonction entre le spiral 2 et la virole 1 du centre O est elle typiquement supérieure ou égale à la distance Rb et inférieure aux distances Rc et Ra.It will be noted that the ferrule according to the invention and its method of realization have the advantage in particular of not requiring that the entire shape of the ferrule be designed in order to maintain substantially constant the distance between the junction point of the spiral to the ferrule and the center of the axis. Thus, as already explained with reference to FIG. 1, the arms 3 of the ferrule may have a particular shape, with variable width, to increase the clamping force of the axis 6 and / or the deformation of the arms 3 by distributing In the example of FIG. 5, and according to another characteristic of the invention, the ferrule further comprises abutments formed by discrete portions 20a, 20b and 20c of the invention. outer contour of the shell, at the junction areas 7a, 7b, 7c respectively, these stops 20a, 20b, 20c are located at respective distances Ra, Rb, Rc of the center O which are small enough not to interfere with the normal operation of the hairspring 2 but large enough, in the event of shock suffered by the movement, to allow the inner turn of the hairspring 2 to abut against one or more stops 20a, 20b and 20c before the elastic limit of this inner turn, including at the junction point 8, is exceeded. The risks of rupture of the balance spring 3 during an impact are thus reduced. The abutments 20a, 20b and 20c typically have an arcuate shape of center O and radii Ra, Rb and Rc respectively. Advantageously, these distances or radii Ra, Rb and Rc grow in the direction D of winding of the spiral 2 going from the inside to the outside from the point 8 of junction of the spiral 2 to the shell 1, this to take into account in that the radius of the inner turn of the spiral 2, like that of all the other turns, increases in this direction D. Thus, the stop 20b closest to the junction point 8 in the direction D is at a distance Rb from center O which is smaller than the distance Rc separating the next stop 10c from the center O, which is smaller than the distance Ra separating the next stop 10a from the center O. The distance R8 separating the point 8 of junction between the hairspring 2 and the ferrule 1 of the center O is it typically greater than or equal to the distance Rb and less than the distances Rc and Ra.

On notera par ailleurs que le principe de la présente invention, tel que défini par les étapes de conception a), b) et c) énoncées ci-dessus, peut être appliqué à d'autres formes de virole que la forme triangulaire montrée aux figures 1 et 5, par exemple à d'autres formes polygonales, régulières ou non, voire à des formes non polygonales. La virole selon l'invention pourrait ainsi, dans une variante, avoir la forme générale conventionnelle d'une bague annulaire fendue, avec le point de jonction du spiral à la virole situé à l'opposé de la fente. Dans cette variante, la virole pourrait être considérée comme comportant deux bras déformables dont la zone de jonction comporte le point de jonction du spiral à la virole.It will further be appreciated that the principle of the present invention, as defined by design steps a), b) and c) set forth above, can be applied to other ferrule shapes than the triangular shape shown in the figures. 1 and 5, for example to other polygonal shapes, regular or not, or even non-polygonal shapes. The ferrule according to the invention could thus, in a variant, have the conventional general shape of a split annular ring, with the junction point of the spiral to the ferrule located opposite the slot. In this variant, the ferrule could be considered as comprising two deformable arms whose junction zone comprises the junction point of the spiral to the ferrule.

D'autre part, bien qu'elle ne nécessite pas de prévoir un cadre de rigidification entourant la partie déformable de la virole, la présente invention n'exclut pas la présence d'un tel cadre.On the other hand, although it does not require a stiffening frame surrounding the deformable portion of the ferrule, the present invention does not exclude the presence of such a frame.

Claims (25)

Virole d'horlogerie (1) destinée à être chassée sur un axe (6) et comprenant un point (8) de jonction avec l'extrémité intérieure d'un spiral (2), caractérisée en ce qu'elle comprend en outre, dans la zone (7a) du point de jonction (8), au moins un évidement (10 ; 18) conformé pour que la distance (R) entre le point de jonction (8) et le centre (O) de l'axe (6) ne soit sensiblement pas modifiée lors du chassage de la virole (1) sur l'axe (6).Clock-shaped ferrule (1) intended to be driven on an axis (6) and comprising a point (8) of junction with the inner end of a spiral (2), characterized in that it further comprises, in the region (7a) of the junction point (8), at least one recess (10; 18) shaped so that the distance (R) between the junction point (8) and the center (O) of the axis (6) ) is substantially not modified during the driving of the shell (1) on the axis (6). Virole selon la revendication 1, caractérisée en ce qu'elle comprend au moins deux bras déformables (3) entre lesquels peut être chassé l'axe (6) et en ce que la zone (7a) du point de jonction (8) est une zone de jonction entre ces deux bras (3).Ferrule according to claim 1, characterized in that it comprises at least two deformable arms (3) between which the axis (6) can be displaced and in that the zone (7a) of the junction point (8) is a junction zone between these two arms (3). Virole selon la revendication 2, caractérisée en ce que le ou les évidements (10 ; 18) confèrent à la zone de jonction (7a) une forme différente de celle d'une ou plusieurs autres zones de jonction (7b, 7c) entre lesdits bras (3).Ferrule according to claim 2, characterized in that the recess or recesses (10; 18) give the junction area (7a) a shape different from that of one or more other joining regions (7b, 7c) between said arms (3). Virole selon la revendication 2 ou 3, caractérisée en ce que le ou les évidements (10 ; 18) sont proches d'une partie de moindre déformation (11) de la zone de jonction (7a).Ferrule according to claim 2 or 3, characterized in that the recess or recesses (10; 18) are close to a part of least deformation (11) of the junction zone (7a). Virole selon la revendication 4, caractérisée en ce que le ou les évidements (10 ; 18) définissent dans la zone de jonction (7a) une partie intermédiaire (15) entre le point de jonction (8) et la partie de moindre déformation (11), cette partie intermédiaire (15) étant moins large qu'une partie intérieure (19) de la zone de jonction (7a) incluant la partie de moindre déformation (11).Ferrule according to Claim 4, characterized in that the recess or recesses (10; 18) define in the junction zone (7a) an intermediate part (15) between the junction point (8) and the part of least deformation (11). ), this intermediate portion (15) being narrower than an inner portion (19) of the junction zone (7a) including the least deformation portion (11). Virole selon la revendication 5, caractérisée en ce que le ou les évidements (10 ; 18) comprennent des premier et second évidements situés de part et d'autre de la partie intermédiaire (15).Ferrule according to claim 5, characterized in that the recess or recesses (10; 18) comprise first and second recesses located on either side of the intermediate portion (15). Virole selon l'une quelconque des revendications 2 à 6, caractérisée en ce qu'elle comprend au moins trois bras déformables (3) disposés en polygone.Ferrule according to any one of claims 2 to 6, characterized in that it comprises at least three deformable arms (3) arranged in a polygon. Virole selon la revendication 7, caractérisée en ce que le polygone est un polygone régulier.Ferrule according to claim 7, characterized in that the polygon is a regular polygon. Virole selon la revendication 7 ou 8, caractérisée en ce qu'elle comprend trois bras déformables (3) disposés en triangle.Ferrule according to claim 7 or 8, characterized in that it comprises three deformable arms (3) arranged in a triangle. Virole selon l'une quelconque des revendications 2 à 9, caractérisée en ce que lesdits bras déformables (3) sont élastiques.Ferrule according to any one of claims 2 to 9, characterized in that said deformable arms (3) are elastic. Virole selon l'une quelconque des revendications 2 à 10, caractérisée en ce que le ou l'un au moins des bras déformables (3) a une largeur variable (L0 - L4) pour rendre plus homogène la répartition des contraintes exercées sur ce bras par l'axe (6).Ferrule according to any one of claims 2 to 10, characterized in that the or at least one of the deformable arms (3) has a variable width (L0 - L4) to make more homogeneous the distribution of the stresses exerted on this arm by the axis (6). Virole selon la revendication 11, caractérisée en ce que ladite largeur variable présente des maxima (L0, L1, L2) sensiblement en un point (9) de contact avec l'axe (6) et aux deux extrémités du bras (3) rattachées à un ou d'autres bras (3) de la virole et des minima (L3, L4) entre ledit point de contact (9) et les deux extrémités du bras (3).Ferrule according to claim 11, characterized in that said variable width has maxima (L0, L1, L2) substantially at a point (9) of contact with the axis (6) and at both ends of the arm (3) attached to one or other arms (3) of the ferrule and minima (L3, L4) between said point of contact (9) and both ends of the arm (3). Virole selon l'une quelconque des revendications 1 à 12, caractérisée en ce que le ou les évidements comprennent une ou plusieurs entailles (18).Ferrule according to any one of claims 1 to 12, characterized in that the or recesses comprise one or more notches (18). Ensemble spiral-virole comprenant un spiral (2) et une virole (1) selon l'une quelconque des revendications 1 à 13, le spiral (2) étant rattaché par son extrémité intérieure à la virole (1).Spiral-ferrule assembly comprising a spiral (2) and a ferrule (1) according to any one of claims 1 to 13, the spiral (2) being attached by its inner end to the ferrule (1). Ensemble spiral-virole selon la revendication 14, caractérisé en ce que le contour externe de la virole (1) définit au moins une butée (20a, 20b, 20c) contre laquelle la spire intérieure du spiral (2) peut venir s'appuyer lors d'un choc avant que la limite élastique de la spire intérieure soit dépassée.Spiral-ferrule assembly according to claim 14, characterized in that the outer contour of the ferrule (1) defines at least one stop (20a, 20b, 20c) against which the inner coil of the spiral (2) can come to bear when a shock before the elastic limit of the inner turn is exceeded. Ensemble spiral-virole selon la revendication 15, caractérisé en ce que ladite au moins une butée consiste en plusieurs butées discrètes (20a, 20b, 20c) situées à des distances respectives (Ra, Rb, Rc) du centre (O) de l'axe (6) qui sont croissantes dans le sens (D) du spiral (2) allant de l'intérieur vers l'extérieur depuis le point (8) de jonction du spiral (2) à la virole (1).Spiral-ferrule assembly according to claim 15, characterized in that said at least one abutment consists of a plurality of discrete abutments (20a, 20b, 20c) located at respective distances (Ra, Rb, Rc) from the center (O) of the axis (6) which are increasing in the direction (D) of the spiral (2) running from the inside to the outside from the point (8) connecting the spiral (2) to the shell (1). Ensemble spiral-virole selon l'une quelconque des revendications 14 à 16, caractérisé en ce qu'il est réalisé d'un seul tenant.Spiral-ferrule assembly according to any one of claims 14 to 16, characterized in that it is made in one piece. Ensemble spiral-virole selon l'une quelconque des revendications 14 à 17, caractérisé en ce qu'il est réalisé en une matière à base de silicium.Spiral-ferrule assembly according to any one of claims 14 to 17, characterized in that it is made of a material based on silicon. Procédé de conception d'une virole d'horlogerie (1) destinée à être chassée sur un axe (6) pour fixer l'extrémité intérieure d'un spiral (2) à cet axe (6), caractérisé en ce qu'il comprend les étapes suivantes : a) dessiner une virole (1') comprenant un point (8) de jonction avec le spiral (2), b) calculer les déformations locales subies par la virole (1') dans la zone (7a) du point de jonction (8) lors du chassage de la virole sur l'axe (6), et c) modifier le dessin de la virole (1') en enlevant de ladite zone (7a) au moins une partie (14) dont les déformations contribuent à modifier la distance (R) entre le point de jonction (8) et le centre (O) de l'axe (6) lors du chassage de la virole sur l'axe (6). Process for the design of a watch ring (1) intended to be driven on an axis (6) for fixing the inner end of a spiral (2) to this axis (6), characterized in that it comprises the following steps: a) drawing a ferrule (1 ') comprising a point (8) of junction with the spiral (2), b) calculating the local deformations experienced by the ferrule (1 ') in the zone (7a) of the junction point (8) during the driving of the ferrule on the axis (6), and c) modifying the drawing of the ferrule (1 ') by removing from said zone (7a) at least one part (14) whose deformations contribute to modify the distance (R) between the junction point (8) and the center ( O) of the axis (6) during the driving of the shell on the axis (6). Procédé selon la revendication 19, caractérisé en ce que l'étape a) consiste à dessiner une virole (1') comprenant au moins deux bras déformables (3) entre lesquels peut être chassé l'axe (6) et une zone (7a) de jonction entre ces deux bras (3), la zone de jonction (7a) constituant ladite zone du point de jonction (8).Process according to Claim 19, characterized in that step a) consists in drawing a shell (1 ') comprising at least two deformable arms (3) between which the axis (6) can be driven and a zone (7a) junction between these two arms (3), the junction zone (7a) constituting said zone of the junction point (8). Procédé selon la revendication 20, caractérisé en ce que l'étape c) consiste à enlever de la zone de jonction (7a) au moins une partie (14) située à proximité d'une partie de moindre déformation (11) de ladite zone (7a).A method according to claim 20, characterized in that step c) consists in removing from the junction zone (7a) at least a portion (14) situated near a part of least deformation (11) of said zone ( 7a). Procédé selon la revendication 21, caractérisé en ce que ladite au moins une partie (14) comprend des première et seconde parties situées de chaque côté de la zone de jonction (7a).The method of claim 21, characterized in that said at least one portion (14) comprises first and second portions located on each side of the junction zone (7a). Procédé selon l'une quelconque des revendications 20 à 22, caractérisé en ce que l'étape a) consiste à dessiner une virole comprenant au moins trois bras déformables (3) disposés en polygone.Method according to any one of claims 20 to 22, characterized in that step a) consists of drawing a shell comprising at least three deformable arms (3) arranged in a polygon. Procédé selon la revendication 23, caractérisé en ce que le polygone est régulier.Method according to claim 23, characterized in that the polygon is regular. Procédé de réalisation d'une virole (1) pour la fixation de l'extrémité intérieure d'un spiral (2) à un axe (6), caractérisé en ce qu'il comprend les étapes suivantes : - concevoir la virole selon le procédé défini dans l'une quelconque des revendications 19 à 24, et - fabriquer ladite virole. Process for producing a ferrule (1) for fixing the inner end of a spiral (2) to an axis (6), characterized in that it comprises the following steps: - Design the shell according to the method defined in any one of claims 19 to 24, and - manufacture said ferrule.
EP06012021.9A 2006-06-12 2006-06-12 Horological collet Active EP1868045B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06012021.9A EP1868045B1 (en) 2006-06-12 2006-06-12 Horological collet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06012021.9A EP1868045B1 (en) 2006-06-12 2006-06-12 Horological collet

Publications (2)

Publication Number Publication Date
EP1868045A1 true EP1868045A1 (en) 2007-12-19
EP1868045B1 EP1868045B1 (en) 2019-02-20

Family

ID=37857109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06012021.9A Active EP1868045B1 (en) 2006-06-12 2006-06-12 Horological collet

Country Status (1)

Country Link
EP (1) EP1868045B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707288A1 (en) * 2012-11-22 2014-05-30 Manuf Et Fabrique De Montres Et De Chronomètres Ulysse Nardin Le Locle S A Device for use in clock industry for assembly for holding of clock spring on rocker axis and/or piton, has tightening loop adapted to shape of part, where loop is provided with diameter that is smaller than diameter of part
CN103926823A (en) * 2013-01-14 2014-07-16 动力专家有限公司 Stress-relieving Elastic Structure of Hairspring Collet
CN104898398A (en) * 2014-03-05 2015-09-09 尼瓦洛克斯-法尔股份有限公司 Hairspring clamped by elastic gasket
RU2760638C2 (en) * 2016-10-13 2021-11-29 Ниварокс-Фар С.А. Balanced spring fastened with elastic washer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH500523A (en) * 1969-06-05 1970-08-31 William Berthoud Louis Set comprising a ferrule and a watch balance spring
EP1302821A2 (en) * 2001-10-10 2003-04-16 Franck Muller-Watchland SA Balance-spring for time measuring apparatus
EP1445670A1 (en) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Balance-spring resonator spiral and its method of fabrication
EP1584994A1 (en) * 2004-04-06 2005-10-12 Nivarox-FAR S.A. Collet without deformation of the spiral fixing radius and fabrication method of such a collet
EP1637940A2 (en) * 2004-08-31 2006-03-22 Patek Philippe Sa Collet for timepieces

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857891A1 (en) * 2006-05-17 2007-11-21 Patek Philippe Sa Hairspring-collet assembly for a timepiece movement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH500523A (en) * 1969-06-05 1970-08-31 William Berthoud Louis Set comprising a ferrule and a watch balance spring
EP1302821A2 (en) * 2001-10-10 2003-04-16 Franck Muller-Watchland SA Balance-spring for time measuring apparatus
EP1445670A1 (en) * 2003-02-06 2004-08-11 ETA SA Manufacture Horlogère Suisse Balance-spring resonator spiral and its method of fabrication
EP1584994A1 (en) * 2004-04-06 2005-10-12 Nivarox-FAR S.A. Collet without deformation of the spiral fixing radius and fabrication method of such a collet
EP1637940A2 (en) * 2004-08-31 2006-03-22 Patek Philippe Sa Collet for timepieces

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH707288A1 (en) * 2012-11-22 2014-05-30 Manuf Et Fabrique De Montres Et De Chronomètres Ulysse Nardin Le Locle S A Device for use in clock industry for assembly for holding of clock spring on rocker axis and/or piton, has tightening loop adapted to shape of part, where loop is provided with diameter that is smaller than diameter of part
CN103926823A (en) * 2013-01-14 2014-07-16 动力专家有限公司 Stress-relieving Elastic Structure of Hairspring Collet
EP2755093A3 (en) * 2013-01-14 2015-09-23 Master Dynamic Limited Stress-Relief Elastic Structure of Hairspring Collet
CN103926823B (en) * 2013-01-14 2017-11-10 动力专家有限公司 Stress-relieving Elastic Structure of Hairspring Collet
CN104898398A (en) * 2014-03-05 2015-09-09 尼瓦洛克斯-法尔股份有限公司 Hairspring clamped by elastic gasket
EP2916177A1 (en) * 2014-03-05 2015-09-09 Nivarox-FAR S.A. Hairspring intended for being clamped by a spring washer
EP2985659A3 (en) * 2014-03-05 2016-03-23 Nivarox-FAR S.A. Hairspring intended for being clamped by a spring washer
EP3098669A1 (en) * 2014-03-05 2016-11-30 Nivarox-FAR S.A. Hairspring intended for being clamped by a spring washer
CN104898398B (en) * 2014-03-05 2017-09-15 尼瓦洛克斯-法尔股份有限公司 The hairspring clamped by elastic washer
US9983548B2 (en) 2014-03-05 2018-05-29 Nivarox-Far S.A. Balance spring intended to be clamped by a resilient washer
RU2681226C2 (en) * 2014-03-05 2019-03-05 Ниварокс-Фар С.А. Balance spring, fixed with elastic washer
RU2760638C2 (en) * 2016-10-13 2021-11-29 Ниварокс-Фар С.А. Balanced spring fastened with elastic washer

Also Published As

Publication number Publication date
EP1868045B1 (en) 2019-02-20

Similar Documents

Publication Publication Date Title
EP2018601B1 (en) Hairspring-collet assembly for a timepiece movement
EP2761380B1 (en) Integral assembly of a hairspring and a collet
EP2407831B1 (en) Hairspring for oscillator balance of a clock piece and method for manufacturing same
EP2550566B1 (en) Split collet with a non-circular opening
EP2104006B1 (en) Single-body double spiral and method for manufacturing same
EP2196868B1 (en) Hairspring with curve elevation made from a silicon-based material
EP2596407B1 (en) Balance having inertia adjustment using an insert
EP3548973B1 (en) Device for timepiece, clockwork mechanism and timepiece comprising such a device.
EP1921516B1 (en) Assembly component comprising two series of elastic structures and timepiece incorporating this component
EP1868045B1 (en) Horological collet
EP2690507B1 (en) Holorological hairspring
EP2206022B1 (en) Shock-absorbing bearing for timepiece
EP2796940A2 (en) Clock component for receiving an organ by insertion
EP2690506B1 (en) Anti-tripping clock hairspring
EP4009115A1 (en) Hairspring for timepiece resonator mechanism provided with a means for adjusting rigidity
EP1637940B1 (en) Collet for timepieces
CH698081B1 (en) Ferrule watch together spiral-ring and spring balance.
EP3401740B1 (en) Flashless timepiece setting component
EP2219083B1 (en) Timepiece component
CH698876B1 (en) spiral-ring set for clockwork.
CH706645A1 (en) Coupling system for coupling e.g. cog wheel with metal axle, in clockwork field, has plastically deformable material layer interposed between hole and axle and positioned to absorb plastic deformation related to driving operation
CH702131B1 (en) Watch collet, has junction point in contact with interior end of hairspring, and cavity provided in zone of junction point so that distance between junction point and center of axis is unchanged at time of driving collet on axis
CH717357A2 (en) Watch hairspring in glass or ceramic, with complex geometry.
EP3144742B1 (en) Inertia micro-adjustment of a timepiece balance
EP3907563B1 (en) Timepiece mechanism comprising a pivot member

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PATEK, PHILIPPE SA

17P Request for examination filed

Effective date: 20080125

17Q First examination report despatched

Effective date: 20080221

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: PATEK PHILIPPE SA GENEVE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20181011

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602006057417

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1099018

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: MICHELI AND CIE SA, CH

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190520

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190521

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190620

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1099018

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602006057417

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

26N No opposition filed

Effective date: 20191121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20190630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190630

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20060612

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230521

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20230510

Year of fee payment: 18

Ref country code: FR

Payment date: 20230421

Year of fee payment: 18

Ref country code: DE

Payment date: 20230418

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20230420

Year of fee payment: 18

Ref country code: CH

Payment date: 20230702

Year of fee payment: 18