EP1612627B1 - Bi-material autocompensating hairspring - Google Patents
Bi-material autocompensating hairspring Download PDFInfo
- Publication number
- EP1612627B1 EP1612627B1 EP04015580A EP04015580A EP1612627B1 EP 1612627 B1 EP1612627 B1 EP 1612627B1 EP 04015580 A EP04015580 A EP 04015580A EP 04015580 A EP04015580 A EP 04015580A EP 1612627 B1 EP1612627 B1 EP 1612627B1
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- Prior art keywords
- balance
- assembly
- curve
- spring
- inner curve
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 13
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- 230000002349 favourable effect Effects 0.000 claims abstract description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 229910000942 Elinvar Inorganic materials 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000206 photolithography Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 229910001004 magnetic alloy Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/066—Manufacture of the spiral spring
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/20—Compensation of mechanisms for stabilising frequency
Definitions
- the present invention relates to a hairspring, intended in particular to be integrated in the balance-sprung adjusting device of a timepiece, whose curve inside is modified to allow a concentric expansion of the turns and thus improve the isochronism of said timepiece.
- the invention relates more particularly to both the conformation of the curve inside and the choice of materials to make the curve inside and all the turns.
- point of attachment the so-called "point of attachment" rule to form the curve inside a spiral according to a particular contour, and in particular according to the Grossmann curve.
- all turns have previously been formed by the known technique of strapping, it is necessary to use a highly skilled labor, so that this solution is reserved for timepieces of high precision, high quality and for limited series, but is in no case applicable to mass production.
- a flat hairspring comprising a blade which is made in one piece. More specifically, the outer portion of the blade, the inner portion of the inner coil, the beginning of the outer coil, the beginning of the inner coil and all the intermediate turns are made of a single material from the normal profile of the coil. spiral which is folded in places. Alternatively, it is expected to strengthen the outer portion of the blade and the inner portion of the inner coil by providing material by galvanic process or welding for example.
- the present invention therefore aims to provide a new solution by providing a hairspring that can be manufactured industrially while having the qualities of a Grossmann inner curve hairspring whose influence on a concentric expansion of the hairspring is greater than that resulting from the conformation of the curve on the outside.
- the subject of the invention is a self-compensating hairspring for a balance-spring balance device, said hairspring being constituted by a first assembly, comprising the turns and the curve on the outside, made of a first material having a torque resilient little or not sensitive to variations in elongation, temperature and magnetic field, and by a second assembly integral with the first assembly, including in particular the curve inside, made of a second material chosen mainly for its mechanical properties facilitating the conformation of said curve inside according to the contour most favorable to a concentric expansion of the spiral.
- This contour may for example be a Grossmann curve.
- the known methods can be used, but the LIGA method of photolithography and galvanic growth is preferably used.
- the accuracy of the conformation of the curve on the inside is thus reported on the production of the irradiation mask, which is perfectly well achieved with current techniques.
- the mask can easily be duplicated or reused for mass production.
- the first and second sets can be assembled by welding, for example by laser welding.
- FIG 1 there is shown a sprung balance adjusting device in top view partially cut away, limited to the parts useful for understanding the invention, the figure 2 being an enlarged representation of the center of the device.
- the regulating device comprises a rocker 10, the axis 11 of which is pivoted in a cock 12 and a spiral 1.
- the curve on the outside 2 of the spiral 1 is fixed in a known manner by fitting into a stud 15 of a holder. 13, and it is extended by a group of turns 3 to the beginning of the curve inside 4 to form a first set.
- the second set comprises in the example shown the curve inside 4 welded at a point 7 on a shell 5.
- the curve inside 4 which is represented as a curve Grossmann 14 conferring spiral 1 a concentric expansion, is welded to a point 9 at the end of the turns of the first set.
- the material used may be any alloy known for its non-magnetic properties and for its low coefficient of thermal expansion, for example Elinvar, this first set being able to be shaped for example by strapping.
- the material used will preferably be chosen for its mechanical properties and for its ease of forming. Even if the material used does not have all the desired properties to conform the whole spiral, given the short length of the curve inside, we can consider as negligible the impact of its defects on the overall performance spiral, these defects can in any case be corrected.
- This second set may comprise only the curve inside which will then be welded at its end 7 to the shell 5 and at its end 9 at the ends of the turns of the first set.
- a positive or negative photoresist with a thickness corresponding to the height "h" of desired blade, then is formed by means of a mask by photolithography and etching a hollow structure corresponding to the desired contour for the second set.
- said hollow structure is filled with a metal or an alloy such as NiP, either by electrodeposition as indicated for example in FIG. U.S. Patent 4,661,212 or by compression and sintering of nanoparticles, as indicated for example in the patent application US 2001/0038803 .
- the second set is released by elimination of the sacrificial layer.
- the amplitude of oscillation of the balance expressed in degrees with respect to its equilibrium position has been plotted on the abscissa, and the deviation expressed in seconds per day is ordinate.
- This diagram has five curves corresponding to the usual measurement positions (1: horizontal, 2 to 5: the four vertical positions), and the dotted line corresponds to the envelope of all the most unfavorable positions. In the usual way, the maximum deviation of the envelope for an amplitude of between 200 ° and 300 ° is used as the operating gap.
- the maximum deviation corresponds to an amplitude of 300 ° and has a value of 2.1 s / d, which is about three times less than the difference that can be observed with a non-modified reference spiral, ie say monomatiere and without Grossmann curve.
Abstract
Description
La présente invention a pour objet un spiral, destiné en particulier à être intégré dans le dispositif réglant balancier-spiral d'une pièce d'horlogerie, dont la courbe à l'intérieur est modifiée pour permettre une expansion concentrique des spires et améliorer ainsi l'isochronisme de ladite pièce d'horlogerie.The present invention relates to a hairspring, intended in particular to be integrated in the balance-sprung adjusting device of a timepiece, whose curve inside is modified to allow a concentric expansion of the turns and thus improve the isochronism of said timepiece.
Pour qu'une pièce d'horlogerie ait le meilleur isochronisme possible il est nécessaire d'agir sur les paramètres de construction du balancier et du spiral, ainsi que sur le choix des matériaux afin d'améliorer les performances intrinsèques du dispositif réglant et de compenser ou réduire les écarts de marche dus à des variations des conditions extérieures, telles que la température ou le champ magnétique.For a timepiece to have the best possible isochronism it is necessary to act on the construction parameters of the balance and the hairspring, as well as on the choice of materials to improve the intrinsic performance of the device regulating and compensating or reduce offsets due to changes in external conditions, such as temperature or magnetic field.
En ce qui concerne le spiral, la conformation de la courbe à l'extérieur pour la fixation directe ou indirecte au coq, la conformation de la courbe à l'intérieur pour la fixation à l'axe de balancier pour permettre un développement concentrique des spires, ainsi que le choix des matériaux jouent un rôle déterminant au niveau de l'isochronisme.Regarding the hairspring, the conformation of the curve to the outside for direct or indirect attachment to the rooster, the conformation of the curve inside for attachment to the balance shaft to allow a concentric development of the turns , as well as the choice of materials play a determining role at the level of isochronism.
L'invention concerne plus particulièrement à la fois la conformation de la courbe à l'intérieur et le choix des matériaux pour réaliser la courbe à l'intérieur ainsi que l'ensemble des spires. Pour atteindre ce but il est bien connu de choisir un alliage amagnétique à faible coefficient de dilation et d'appliquer la règle dite "du point d'attache" pour conformer la courbe à l'intérieur d'un spiral selon un contour particulier, et notamment selon la courbe du Grossmann. Pour réaliser une telle courbe à l'extrémité intérieure d'un spiral, dont toutes les spires auront préalablement été formées par la technique connue d'estrapadage, il est nécessaire de faire appel à une main-d'oeuvre hautement qualifiée, de sorte que cette solution est réservée aux pièces d'horlogerie de haute précision, de haut de gamme et pour des séries limitées, mais n'est en aucun cas applicable à des fabrications en série. Compte-tenu de l'évolution des technologies, pour donner au spiral la forme optimum, on pourrait envisager de réaliser tout le spiral par photolithographie et croissance galvanique. Toutefois, en l'état actuel, il n'existe pas un métal ou un alliage qui soit satisfaisant à la fois pour sa facilité de conformation par galvanoplastie et pour ses propriétés d'élasticité et de coefficient thermique.The invention relates more particularly to both the conformation of the curve inside and the choice of materials to make the curve inside and all the turns. To achieve this goal, it is well known to choose a non-magnetic alloy with a low coefficient of expansion and to apply the so-called "point of attachment" rule to form the curve inside a spiral according to a particular contour, and in particular according to the Grossmann curve. To achieve such a curve at the inner end of a spiral, all turns have previously been formed by the known technique of strapping, it is necessary to use a highly skilled labor, so that this solution is reserved for timepieces of high precision, high quality and for limited series, but is in no case applicable to mass production. Given the evolution of technologies, to give the spiral the optimum shape, we could consider making the entire spiral by photolithography and galvanic growth. However, in the current state, there is no metal or alloy that is satisfactory both for its ease of conformation by electroplating and for its elastic properties and thermal coefficient.
On connaît par le document de brevet
La présente invention vise donc à apporter une solution nouvelle en procurant un spiral pouvant être fabriqué de façon industrielle tout en ayant les qualités d'un spiral à courbe intérieure Grossmann dont l'influence sur une expansion concentrique du spiral est plus grande que celle résultant de la conformation de la courbe à l'extérieur.The present invention therefore aims to provide a new solution by providing a hairspring that can be manufactured industrially while having the qualities of a Grossmann inner curve hairspring whose influence on a concentric expansion of the hairspring is greater than that resulting from the conformation of the curve on the outside.
A cet effet l'invention a pour objet un spiral auto-compensateur pour un dispositif réglant balancier-spiral, ledit spiral étant constitué par un premier ensemble, comprenant les spires et la courbe à l'extérieur, réalisé en un premier matériau ayant un couple élastique peu ou pas sensible aux variations d'élongation, de température et de champ magnétique, et par un deuxième ensemble solidaire du premier ensemble, comprenant notamment la courbe à l'intérieur, réalisé en un deuxième matériau choisi essentiellement pour ses propriétés mécaniques facilitant la conformation de ladite courbe à l'intérieur selon le contour le plus favorable à une expansion concentrique du spiral. Ce contour peut par exemple être une courbe Grossmann.To this end, the subject of the invention is a self-compensating hairspring for a balance-spring balance device, said hairspring being constituted by a first assembly, comprising the turns and the curve on the outside, made of a first material having a torque resilient little or not sensitive to variations in elongation, temperature and magnetic field, and by a second assembly integral with the first assembly, including in particular the curve inside, made of a second material chosen mainly for its mechanical properties facilitating the conformation of said curve inside according to the contour most favorable to a concentric expansion of the spiral. This contour may for example be a Grossmann curve.
Pour fabriquer le deuxième ensemble, on peut utiliser les procédés connus, mais on utilise de préférence le procédé LIGA de photolithographie et croissance galvanique. On reporte ainsi la précision de la conformation de la courbe à l'intérieur sur la réalisation du masque d'irradiation, ce qu'on sait parfaitement réaliser avec les techniques actuelles. Le masque peut facilement être dupliqué ou réutilisé pour une fabrication en série.To manufacture the second set, the known methods can be used, but the LIGA method of photolithography and galvanic growth is preferably used. The accuracy of the conformation of the curve on the inside is thus reported on the production of the irradiation mask, which is perfectly well achieved with current techniques. The mask can easily be duplicated or reused for mass production.
En faisant appel au procédé LIGA pour réaliser le deuxième ensemble, on peut très facilement prévoir un masque permettant de former en même temps la virole pour la fixation de la courbe à l'intérieur sur l'axe de balancier. Lorsque les premier et deuxième matériaux sont des métaux ou des alliages, les premier et deuxième ensemble peuvent être assemblés par soudage, par exemple par soudage laser.By using the LIGA process to make the second set, it is very easy to provide a mask for forming at the same time the ferrule for fixing the curve inside on the balance shaft. When the first and second materials are metals or alloys, the first and second sets can be assembled by welding, for example by laser welding.
D'autres caractéristiques et avantages de la présente invention apparaîtront dans la description qui suit, donnée à titre illustratif et non limitatif, en référence aux dessins annexés dans lesquels :
- la
figure 1 représente en vue de dessus partiellement arrachée un balancier spiral pourvu d'un spiral selon l'invention; - la
figure 2 représente une vue agrandie de la courbe à l'intérieur selon la flèche II de lafigure 1 , et - la
figure 3 correspond à un diagramme d'isochronisme obtenu avec un spiral selon l'invention.
- the
figure 1 represents in top view partially torn off a spiral balance provided with a spiral according to the invention; - the
figure 2 represents an enlarged view of the curve inside according to the arrow II of thefigure 1 , and - the
figure 3 corresponds to an isochronism diagram obtained with a hairspring according to the invention.
A la
Le dispositif réglant comprend un balancier 10, dont l'axe 11 est pivoté dans un coq 12 et un spiral 1. La courbe à l'extérieur 2 du spiral 1 est fixée de façon connue par encastrement dans un piton 15 d'un porte-piton 13, et elle est prolongée par un groupe de spire 3 jusqu'au début de la courbe à l'intérieur 4 pour former un premier ensemble.The regulating device comprises a
Le deuxième ensemble, plus visible sur la figure agrandie 2, comprend dans l'exemple représenté la courbe à l'intérieur 4 soudée en un point 7 sur une virole 5. La courbe à l'intérieur 4, qui est représentée comme étant une courbe Grossmann 14 conférant au spiral 1 une expansion concentrique, est soudée en un point 9 à l'extrémité des spires du premier ensemble.The second set, more visible in the enlarged figure 2, comprises in the example shown the curve inside 4 welded at a point 7 on a
Ainsi, en séparant "physiquement" le premier ensemble et le deuxième ensemble, il est possible de choisir des matériaux différents et des méthodes de fabrication différentes, en fonction de la propriété dominante souhaitée.Thus, by "physically" separating the first set and the second set, it is possible to choose different materials and different manufacturing methods, depending on the desired dominant property.
Pour le premier ensemble, le matériau utilisé peut-être un quelconque alliage connu pour ses propriétés amagnétiques et pour son faible coefficient de dilatation thermique, par exemple de l'Elinvar, ce premier ensemble pouvant être conformé par exemple par estrapadage.For the first set, the material used may be any alloy known for its non-magnetic properties and for its low coefficient of thermal expansion, for example Elinvar, this first set being able to be shaped for example by strapping.
En ce qui concerne le deuxième ensemble, qui sera de préférence conformé par le procédé LIGA, le matériau utilisé sera de préférence choisi pour ses propriétés mécaniques et pour sa facilité de mise en forme. Même si le matériau utilisé n'a pas toutes les propriétés souhaitées pour conformer la totalité du spiral, compte-tenu de la faible longueur de la courbe à l'intérieur, on peut considérer comme négligeable l'impact de ses défauts sur la performance globale du spiral, ces défaut pouvant dans tous les cas être corrigés.As regards the second set, which will preferably be shaped by the LIGA process, the material used will preferably be chosen for its mechanical properties and for its ease of forming. Even if the material used does not have all the desired properties to conform the whole spiral, given the short length of the curve inside, we can consider as negligible the impact of its defects on the overall performance spiral, these defects can in any case be corrected.
Ce deuxième ensemble peut comporter uniquement la courbe à l'intérieur qui sera alors soudé à son extrémité 7 à la virole 5 et à son extrémité 9 à l'extrémité des spires du premier ensemble. Lorsqu'on utilise le procédé LIGA, il est possible de façon avantageuse de conformer en même temps la courbe à l'intérieur 14 et la virole 5 en donnant à celle-ci la forme classique en étoile à quatre branches, ou toute autre forme appropriée.This second set may comprise only the curve inside which will then be welded at its end 7 to the
Pour réaliser le deuxième ensemble par le procédé LIGA, dans une première étape on étale sur un substrat préalablement revêtu d'une couche sacrificielle un photorésist positif ou négatif avec une épaisseur correspondant à la hauteur "h" de lame désirée, puis on forme au moyen d'un masque par photolithographie et attaque chimique une structure en creux correspondant au contour désiré pour le deuxième ensemble. Dans une deuxième étape, on remplit ladite structure en creux d'un métal ou d'un alliage tel que NiP, soit par électrodéposition comme indiqué par exemple dans le
En se référant maintenant à la
On a reporté en abscisses l'amplitude d'oscillation du balancier exprimée en degrés par rapport à sa position d'équilibre, et en ordonnées l'écart de marche exprimé en secondes par jour. Ce diagramme comporte cinq courbes correspondant aux positions usuelles de mesure (1 : horizontal; 2 à 5 : les quatre positions verticales), et le tracé en pointillés correspond à l'enveloppe de toutes les positions les plus défavorables. De façon usuelle, on retient comme écart de marche l'écart maximum de l'enveloppe pour une amplitude comprise entre 200° et 300°. Comme on peut le voir sur
D'autres modifications au spiral autocompensateur bi-matière qui vient d'être décrit peuvent être apportées par l'homme de l'art sans sortir du cadre de la présente invention.Other modifications to the bi-material self-compensating hairspring which has just been described can be provided by those skilled in the art without departing from the scope of the present invention.
Claims (8)
- Self-compensating balance-spring (1) for a sprung-balance regulating device whose outer curve (2) is secured to the balance-cock (12) in which the balance staff (11) pivots, on which the inner curve (4) of the balance-spring (1) is secured, characterized in that the balance-spring (1) is formed by a first assembly, including the coils (3) and the outer curve (2), made of a first material having an elastic torque that is insensitive or nearly insensitive to elongation, temperature and magnetic field variations, and by a second assembly secured to the first assembly, including in particular the inner curve (4) made of a second material different from the first essentially selected for its mechanical properties facilitating the shaping of said inner curve (4) along the most favourable contour for concentric expansion of the balance-spring.
- Balance-spring according to claim 1, characterized in that the inner curve (4) has the contour of a Grossmann curve (14).
- Balance-spring according to claim 1, characterized in that the second assembly also includes a collet (5) for securing to the balance staff (11) and integral with the inner curve (4).
- Balance-spring according to claim 1, characterized in that the first assembly is an Elinvar type alloy, and the material of the second assembly is selected essentially for its mechanical properties and its shapeability, such as a NiP alloy.
- Balance-spring according to claim 4, characterized in that the first and second assemblies are secured by a laser welding point (9).
- Method of manufacturing of a self-compensating balance-spring (1) for a sprung-balance regulating device according to any of claims 1 to 5, characterized in that it includes the steps consisting in:- achieve the first assembly, including the coils (3) and the outer curve (2) made of a first material;- achieve the second assembly, including notably the inner curve (4) made of a second material different from the first;- secure the second assembly to the first.
- Method of manufacturing a second assembly of a balance-spring according to claim 6, characterized in that a mould is formed by the LIGA method corresponding to the required contour of the second assembly and in that the second material is added to said mould by galvanic growth of a metal or an alloy.
- Method of manufacturing the second assembly of a balance-spring according to claim 6 dependent on claim 3, characterized in that a mould corresponding to the required contour of the second assembly comprising the inner curve (4) and the collet (5) is formed by the LIGA method and in that the second material is added to said mould by galvanic growth.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04015580A EP1612627B1 (en) | 2004-07-02 | 2004-07-02 | Bi-material autocompensating hairspring |
| DE602004020982T DE602004020982D1 (en) | 2004-07-02 | 2004-07-02 | tion |
| AT04015580T ATE430953T1 (en) | 2004-07-02 | 2004-07-02 | HAIR SPRING MADE OF TWO MATERIALS WITH SELF-COMPENSATION |
| TW094121675A TWI382285B (en) | 2004-07-02 | 2005-06-28 | Self-compensating balance-spring for a sprung-balance regulating device and method of manufacturing a self-compensating balance-spring for a sprung-balance regulating device |
| KR1020050056399A KR20060048633A (en) | 2004-07-02 | 2005-06-28 | Bi-material self-compensating balance-spring |
| US11/169,911 US7229208B2 (en) | 2004-07-02 | 2005-06-30 | Bi-material self-compensating balance-spring |
| CN200510080763.2A CN1728017B (en) | 2004-07-02 | 2005-06-30 | Bi-material self-compensating balance-spring |
| RU2005120604/28A RU2363971C2 (en) | 2004-07-02 | 2005-07-01 | Self-compensating balance spring made of two materials |
| JP2005194992A JP4852267B2 (en) | 2004-07-02 | 2005-07-04 | Automatic compensation spring made of two materials |
| HK06102729.8A HK1082972A1 (en) | 2004-07-02 | 2006-03-02 | Bi-material self-compensating balance-spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04015580A EP1612627B1 (en) | 2004-07-02 | 2004-07-02 | Bi-material autocompensating hairspring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1612627A1 EP1612627A1 (en) | 2006-01-04 |
| EP1612627B1 true EP1612627B1 (en) | 2009-05-06 |
Family
ID=34925588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04015580A Active EP1612627B1 (en) | 2004-07-02 | 2004-07-02 | Bi-material autocompensating hairspring |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US7229208B2 (en) |
| EP (1) | EP1612627B1 (en) |
| JP (1) | JP4852267B2 (en) |
| KR (1) | KR20060048633A (en) |
| CN (1) | CN1728017B (en) |
| AT (1) | ATE430953T1 (en) |
| DE (1) | DE602004020982D1 (en) |
| HK (1) | HK1082972A1 (en) |
| RU (1) | RU2363971C2 (en) |
| TW (1) | TWI382285B (en) |
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| CH699882A2 (en) * | 2008-11-06 | 2010-05-14 | Montres Breguet Sa | Elevated curve hairspring e.g. breguet hairspring, for use in timepiece, has lifting device arranged between external layer of spring and terminal curve so as to increase concentric development of hairspring |
| CH700059A2 (en) * | 2008-12-15 | 2010-06-15 | Montres Breguet Sa | Curve elevation hairspring i.e. Breguet hairspring, for movement of timepiece, has elevation device placed between external spire and terminal curve, and two unique parts integrated for increasing precision of development of hairspring |
| CH701783B1 (en) * | 2009-09-07 | 2015-01-30 | Manuf Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A | spiral spring watch movement. |
| US8720286B2 (en) * | 2009-11-06 | 2014-05-13 | Baker Hughes Incorporated | Temperature insensitive devices and methods for making same |
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| EP2557460A1 (en) * | 2011-08-12 | 2013-02-13 | Nivarox-FAR S.A. | Metallic pallets with polymer horns |
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| EP2690507B1 (en) * | 2012-07-26 | 2014-12-31 | Nivarox-FAR S.A. | Holorological hairspring |
| CH707165B1 (en) * | 2012-11-07 | 2016-12-30 | Patek Philippe Sa Geneve | Watch movement with sprung balance. |
| CH707503A2 (en) * | 2013-01-17 | 2014-07-31 | Omega Sa | Pivoting axle i.e. non-magnetic balance axle, for clockwork movement of timepiece, has pivot made of composite material having metal matrix charged with hard particles in order to limit sensitivity of axle to magnetic fields |
| EP2767869A1 (en) * | 2013-02-13 | 2014-08-20 | Nivarox-FAR S.A. | Method for manufacturing a one-piece micromechanical part comprising at least two separate levels |
| EP2952972B1 (en) * | 2014-06-03 | 2017-01-25 | The Swatch Group Research and Development Ltd. | Method for manufacturing a composite compensator spiral |
| EP2952977A1 (en) * | 2014-06-03 | 2015-12-09 | Nivarox-FAR S.A. | Timepiece component made of welded materials |
| CN107615182B (en) * | 2015-06-15 | 2020-02-07 | 西铁城时计株式会社 | Speed regulator for clock |
| EP3181515A1 (en) * | 2015-12-15 | 2017-06-21 | CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement | Composite timepiece and method for manufacturing same |
| SG11201806735QA (en) * | 2016-03-23 | 2018-09-27 | Patek Philippe Sa Geneve | Balance-hairspring oscillator for a timepiece |
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| US209642A (en) * | 1878-11-05 | Improvement in balance-springs for time-keepers | ||
| US1931251A (en) * | 1930-03-17 | 1933-10-17 | New Haven Clock Co | Torsion-spring for clocks, watches, etc. |
| CH327796A (en) | 1954-02-22 | 1958-02-15 | Horlogerie Suisse S A Asuag | Flat hairspring |
| DE1205464B (en) * | 1961-08-24 | 1965-11-18 | United States Time Corp | Regulator |
| CH499094A (en) * | 1967-11-09 | 1970-11-15 | Kienzle Apparate Gmbh | Return spring for measuring devices |
| CH871474A4 (en) * | 1974-06-25 | 1977-02-28 | ||
| CH692532A5 (en) * | 1997-10-21 | 2002-07-15 | Ebauchesfabrik Eta Ag | A method of making a balance spring for a horological movement. |
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| EP1431844A1 (en) * | 2002-12-19 | 2004-06-23 | SFT Services SA | Assembly for the regulating organ of a watch movement |
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-
2004
- 2004-07-02 AT AT04015580T patent/ATE430953T1/en not_active IP Right Cessation
- 2004-07-02 DE DE602004020982T patent/DE602004020982D1/en active Active
- 2004-07-02 EP EP04015580A patent/EP1612627B1/en active Active
-
2005
- 2005-06-28 KR KR1020050056399A patent/KR20060048633A/en not_active Application Discontinuation
- 2005-06-28 TW TW094121675A patent/TWI382285B/en not_active IP Right Cessation
- 2005-06-30 US US11/169,911 patent/US7229208B2/en active Active
- 2005-06-30 CN CN200510080763.2A patent/CN1728017B/en active Active
- 2005-07-01 RU RU2005120604/28A patent/RU2363971C2/en active
- 2005-07-04 JP JP2005194992A patent/JP4852267B2/en active Active
-
2006
- 2006-03-02 HK HK06102729.8A patent/HK1082972A1/en unknown
Also Published As
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|---|---|
| TWI382285B (en) | 2013-01-11 |
| US7229208B2 (en) | 2007-06-12 |
| RU2363971C2 (en) | 2009-08-10 |
| ATE430953T1 (en) | 2009-05-15 |
| EP1612627A1 (en) | 2006-01-04 |
| CN1728017B (en) | 2010-06-16 |
| KR20060048633A (en) | 2006-05-18 |
| HK1082972A1 (en) | 2006-06-23 |
| TW200613938A (en) | 2006-05-01 |
| CN1728017A (en) | 2006-02-01 |
| US20060002241A1 (en) | 2006-01-05 |
| JP2006017734A (en) | 2006-01-19 |
| RU2005120604A (en) | 2007-01-10 |
| JP4852267B2 (en) | 2012-01-11 |
| DE602004020982D1 (en) | 2009-06-18 |
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