EP2908183A1 - Clock hairspring - Google Patents

Clock hairspring Download PDF

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Publication number
EP2908183A1
EP2908183A1 EP14155196.0A EP14155196A EP2908183A1 EP 2908183 A1 EP2908183 A1 EP 2908183A1 EP 14155196 A EP14155196 A EP 14155196A EP 2908183 A1 EP2908183 A1 EP 2908183A1
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EP
European Patent Office
Prior art keywords
spiral
turn
angle
point
section
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
EP14155196.0A
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German (de)
French (fr)
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EP2908183B1 (en
Inventor
Andrés Cabezas Jurin
Kaspar Trümpy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP14155196.0A priority Critical patent/EP2908183B1/en
Priority to US14/612,598 priority patent/US9239569B2/en
Priority to JP2015024962A priority patent/JP5976860B2/en
Priority to CN201510078554.8A priority patent/CN104849995B/en
Priority to RU2015105009A priority patent/RU2675181C2/en
Publication of EP2908183A1 publication Critical patent/EP2908183A1/en
Priority to HK16101511.0A priority patent/HK1213647A1/en
Application granted granted Critical
Publication of EP2908183B1 publication Critical patent/EP2908183B1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/14—Mainsprings; Bridles therefor
    • 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

Definitions

  • the invention relates to an improved horological spiral.
  • the invention relates to a clockwork movement comprising a control rod defining an oriented direction, a platen carrying a pin and means for guiding at least one balance-sprung regulator mechanism pivoting about an axis and which sprung balance comprises at least one such spiral.
  • the invention relates to a watch comprising at least one balance-sprung regulator mechanism pivoting about an axis and said sprung balance comprising at least one such spiral, and / or said watch comprising at least one such movement.
  • the invention relates to the field of mechanical mechanisms for watches, wristwatches and pocket watches, and more particularly the sprung balance regulating mechanisms.
  • the invention proposes to define a hairspring for obtaining excellent concentricity of the hairspring in expansion and contraction, guaranteeing the improvement of the chronometry of the timepiece which incorporates such a hairspring.
  • the design according to the invention must be applicable to a manufacturing type "MEMS” or "LIGA”, so as to exploit the advantages of silicon, quartz, diamond, or similar materials. Also, the invention sets out to define a spiral geometry with a completely flat execution, without twisting, and without concavity change so as to ensure a better service life.
  • the invention relates to an improved horological spiral, characterized in that it comprises successively and forming a continuous ribbon, from an inner end upstream, an internal coil of degressive section developing on less than one turn followed by a succession of turns each of section always greater than or equal to that of the coil directly upstream, and of which at least one is of increasing section.
  • said spiral further comprises a seventh segment between said sixth point and a seventh point, according to a seventh angle at the center, of section greater than or equal to that of said sixth turn at said sixth point, deviating from the preceding turns, and making with the tangent of said sixth turn at said sixth point a deflection angle.
  • the invention relates to a clockwork movement comprising a control rod defining an oriented direction, a platen carrying a pin and means for guiding at least one balance-sprung regulator mechanism pivoting about an axis and which sprung balance comprises at least one such spiral.
  • the invention relates to a watch comprising at least one balance-sprung regulator mechanism pivoting about an axis and said sprung balance comprising at least one such spiral, and / or said watch comprising at least one such movement.
  • the invention relates to an improved watch spiral 1.
  • this improved clockwork spring 1 comprises successively and forming a continuous ribbon, from an inner end upstream, an internal coil of degressive section developing on less than one turn, followed by a succession of turns each of section always greater than or equal to that of the coil directly upstream, and of which at least one is of increasing section.
  • the second turn is formed in a regular spiral, on several turns.
  • this spring 1 further comprises a seventh segment between said sixth point P6 and a seventh point P7, according to a seventh angle at the center ⁇ 7, with a section greater than or equal to that of the sixth turn at the sixth point P6, deviating from the previous turns and making with the tangent of the sixth turn at the sixth point P6 a deflection angle e.
  • the first ratio R1 is between 0.90 and 0.95. More particularly, it is close to 0.92.
  • the third ratio R3 is between 1.15 and 1.30. More particularly, it is close to 1.22.
  • the fifth ratio R5 is between 1.50 and 1.75. In particular, it is close to 1.64.
  • the sixth ratio R6 is between 1.25 and 1.40. More particularly, it is close to 1.33.
  • the first central angle ⁇ 1 is between 340 ° and 350 °. More particularly it is close to 344 °.
  • the second central angle ⁇ 2 has the value of an integer number of turns of a regular spiral to which is added an angle of between 285 ° and 295 °.
  • the integer number of turns is thirteen, and more particularly the added angle is close to 292 °.
  • the third angle ⁇ 3 at the center is between 3 ° and 7 °. More particularly, it is close to 5 °.
  • the fourth central angle ⁇ 4 is between 115 ° and 130 °. More particularly, it is close to 122 °.
  • the fifth angle ⁇ 5 at the center is between 3 ° and 7 °. More particularly, it is close to 5 °.
  • the sixth central angle ⁇ 6 is between 30 ° and 50 °. More particularly, it is close to 40 °.
  • the seventh segment extends in a zone swept by a seventh angle at the center ⁇ 7 between 20 ° and 25 °, and the deflection angle e between 45 ° and 65 °. More particularly, the seventh angle at the center ⁇ 7 is close to 22 °. More particularly, the angle of deviation e is close to 55 °.
  • the hairspring 1 is of constant height in an axial direction A, this height being between 0.14 mm and 0.16 mm.
  • the inner radius of the spiral 1 at the first inner turn is between 0.45 and 0.55 mm, and its outer radius at the sixth outer turn is between 2 , 70 and 2.80 mm.
  • the spiral 1 is locally breakable and has for this purpose, at its distal outer end 11 its outer turn 12, breaking primers 15 provided to reduce its length, for the adjustment of its attachment to a peak 5.
  • the hairspring 1 is monobloc, made of monocrystalline silicon of Young's modulus E between 140000 N / mm 2 and 150000 N / mm 2 and density p between 2.30 g / cm 3 and 2, 40 g / cm 3 .
  • the spiral 1 is monobloc, silicon oxide or monocrystalline quartz or polycrystalline quartz or monocrystalline diamond or polycrystalline diamond.
  • the invention also relates to a watch movement 100 comprising a control rod 3 defining a direction oriented D, a plate 4 carrying a stud 5 and guide means of at least one balance-spiral regulator mechanism pivoting around of an axis A.
  • This regulating mechanism comprises at least one such spiral 1.
  • this hairspring 1 is attached to the peg 5 at a distal outer end 11 of its outer turn 12, at a point forming with the direction D a pinning angle AP.
  • the hairspring 1 is fixed to a rocker shell 19 by an internal attachment point 13 at the end of its inner turn 14, this internal attachment point 13 forming with the direction D a fastening angle AA in the balance position of the balance.
  • the angle of attachment AA is between 180 ° and 200 °
  • the AP pitting angle is between 95 and 115 °.
  • the hairspring 1 is fixed to the peg 5 by a separate element 6 joined to said hairspring 1.
  • this separate element 6 joined to the hairspring 1 is made of the same material as the hairspring 1, with the same Young's modulus E and the same density p, and is of greater rigidity than the hairspring 1 in all point of the outer turn 12 of the hairspring 1.
  • the invention also relates to a watch 200 comprising at least one balance-sprung regulator mechanism pivoting about an axis A comprising at least one such spiral 1, and / or this watch 200 comprises at least one such movement 100.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Springs (AREA)

Abstract

Spiral (1) comportant, tangentes entre elles : - une première spire interne selon un premier angle au centre (±1) et de section décroissante dans un premier rapport (R1) ; - une deuxième spire selon un deuxième angle au centre (±2) et de section constante ; - une troisième spire selon un troisième angle au centre (±3) et de section croissante dans un troisième rapport (R3) ; - une quatrième spire selon un quatrième angle au centre (±4) et de section constante ; - une cinquième spire selon un cinquième angle au centre (±5) et de section croissante dans un cinquième rapport (R5) ; - une sixième spire selon un sixième angle au centre (±6) et de section croissante dans un sixième rapport (R6). Dans une variante, un septième segment plus rigide s'écarte de ladite sixième spire. Mouvement (100) comportant ce spiral (1). Montre (200) comportant ce mouvement (100).Spiral (1) having, tangent to each other: a first internal turn at a first central angle (± 1) and a decreasing section in a first ratio (R1); a second turn at a second central angle (± 2) and of constant section; a third turn at a third angle at the center (± 3) and of increasing section in a third ratio (R3); a fourth turn at a fourth angle at the center (± 4) and of constant section; a fifth turn at a fifth angle in the center (± 5) and of increasing section in a fifth ratio (R5); a sixth turn at a sixth angle at the center (± 6) and of increasing section in a sixth ratio (R6). In a variant, a seventh more rigid segment deviates from said sixth turn. Movement (100) comprising this spiral (1). Watch (200) comprising this movement (100).

Description

Domaine de l'inventionField of the invention

L'invention concerne un spiral d'horlogerie amélioré.The invention relates to an improved horological spiral.

L'invention concerne un mouvement d'horlogerie comportant une tige de commande définissant une direction orientée, une platine porteuse d'un piton et de moyens de guidage d'au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe et lequel balancier-spiral comporte au moins un tel spiral.The invention relates to a clockwork movement comprising a control rod defining an oriented direction, a platen carrying a pin and means for guiding at least one balance-sprung regulator mechanism pivoting about an axis and which sprung balance comprises at least one such spiral.

L'invention concerne une montre comportant au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe et ledit balancier-spiral comportant au moins un tel spiral, et/ou ladite montre comportant au moins un tel mouvement.The invention relates to a watch comprising at least one balance-sprung regulator mechanism pivoting about an axis and said sprung balance comprising at least one such spiral, and / or said watch comprising at least one such movement.

L'invention concerne le domaine des mécanismes mécaniques de montres, montres-bracelet et montres de poche, et plus particulièrement les mécanismes régulateurs à balancier-spiral.The invention relates to the field of mechanical mechanisms for watches, wristwatches and pocket watches, and more particularly the sprung balance regulating mechanisms.

Arrière-plan de l'inventionBackground of the invention

L'obtention et le maintien de l'isochronisme d'un oscillateur mécanique d'horlogerie constituent des difficultés majeures de la conception horlogère. La qualité du ressort spiral est un facteur essentiel de la précision d'une pièce d'horlogerie. De nombreuses avancées ont été faites, notamment en mettant en oeuvre des vrillages de spires interne ou terminale.Obtaining and maintaining the isochronism of a mechanical clock oscillator are major difficulties in watchmaking design. The quality of the spiral spring is an essential factor in the precision of a timepiece. Numerous advances have been made, in particular by implementing twists of internal or terminal turns.

D'autres recherches ont permis de conserver une élaboration plane du spiral. Ainsi le brevet BE 526689 au nom de Emile MICHEL, ou le document CH 327 796 au nom de ASUAG, propose un spiral où au moins une partie de la lame présente une section droite différente de celle du reste de la lame, en vue d'obtenir, lors du fonctionnement, un développement concentrique du spiral. Toutefois, les enseignements en sont très généraux, et l'homme du métier doit mener une longue expérimentation pour définir des paramètres convenables.Other research has kept a planar elaboration of the spiral. Thus the patent BE 526689 in the name of Emile MICHEL, or the document CH 327 796 in the name of ASUAG, proposes a hairspring where at least a portion of the blade has a cross section different from that of the rest of the blade, in view of during operation, to obtain a concentric development of the hairspring. However, the teachings are very general, and the skilled person must conduct a long experiment to define suitable parameters.

Résumé de l'inventionSummary of the invention

L'invention se propose de définir un spiral permettant d'obtenir une excellente concentricité du spiral en expansion et en contraction, garante de l'amélioration de la chronométrie de la pièce d'horlogerie qui incorpore un tel spiral.The invention proposes to define a hairspring for obtaining excellent concentricity of the hairspring in expansion and contraction, guaranteeing the improvement of the chronometry of the timepiece which incorporates such a hairspring.

La conception selon l'invention doit être applicable à une fabrication de type « MEMS » ou « LIGA », de façon à pouvoir exploiter les avantages propres au silicium, au quartz, au diamant, ou matériaux similaires. Aussi, l'invention s'attache à définir une géométrie de spiral avec une exécution entièrement plane, sans vrillage, et sans changement de concavité de façon à assurer une meilleure tenue en service.The design according to the invention must be applicable to a manufacturing type "MEMS" or "LIGA", so as to exploit the advantages of silicon, quartz, diamond, or similar materials. Also, the invention sets out to define a spiral geometry with a completely flat execution, without twisting, and without concavity change so as to ensure a better service life.

A cet effet, l'invention concerne un spiral d'horlogerie amélioré, caractérisé en ce qu'il comporte successivement et formant un ruban continu, depuis une extrémité interne en amont, une spire interne de section dégressive se développant sur moins d'un tour, suivie d'une succession de spires chacune de section toujours supérieure ou égale à celle de la spire directement en amont, et dont au moins une est de section croissante.For this purpose, the invention relates to an improved horological spiral, characterized in that it comprises successively and forming a continuous ribbon, from an inner end upstream, an internal coil of degressive section developing on less than one turn followed by a succession of turns each of section always greater than or equal to that of the coil directly upstream, and of which at least one is of increasing section.

Selon une caractéristique de l'invention, ledit spiral d'horlogerie amélioré, comporte successivement, depuis une extrémité interne et en angles au centre par rapport à une référence axiale, tangentes les unes aux autres et toutes de concavité tournée vers la référence axiale et formant un ruban continu :

  • une première spire interne jusqu'à un premier point, selon un premier angle au centre et de section décroissante dans un premier rapport ;
  • une deuxième spire jusqu'à un deuxième point, selon un deuxième angle au centre et de section constante ;
  • une troisième spire jusqu'à un troisième point, selon un troisième angle au centre et de section croissante dans un troisième rapport;
  • une quatrième spire jusqu'à un quatrième point, selon un quatrième angle au centre et de section constante ;
  • une cinquième spire jusqu'à un cinquième point, selon un cinquième angle au centre et de section croissante dans un cinquième rapport ;
  • une sixième spire externe jusqu'à un sixième point, selon un sixième angle au centre et de section croissante dans un sixième rapport.
According to one characteristic of the invention, said improved clockwork spring comprises, successively, from an inner end and at angles in the center relative to an axial reference, tangent to each other and all of concavity turned towards the axial reference and forming a continuous ribbon:
  • a first internal turn to a first point, at a first angle in the center and decreasing in a first ratio;
  • a second turn to a second point, at a second angle at the center and constant section;
  • a third turn to a third point, at a third angle at the center and increasing in a third section;
  • a fourth turn to a fourth point, at a fourth angle at the center and constant section;
  • a fifth turns up to a fifth point, according to a fifth angle at the center and of increasing section in a fifth ratio;
  • a sixth outer turn to a sixth point, at a sixth angle at the center and increasing in a sixth report.

Dans une variante particulière, ledit spiral comporte encore un septième segment entre ledit sixième point et un septième point, selon un septième angle au centre, de section supérieure ou égale à celle de ladite sixième spire audit sixième point, s'écartant des spires précédentes, et faisant avec la tangente de ladite sixième spire audit sixième point un angle de déviation.In a particular variant, said spiral further comprises a seventh segment between said sixth point and a seventh point, according to a seventh angle at the center, of section greater than or equal to that of said sixth turn at said sixth point, deviating from the preceding turns, and making with the tangent of said sixth turn at said sixth point a deflection angle.

L'invention concerne un mouvement d'horlogerie comportant une tige de commande définissant une direction orientée, une platine porteuse d'un piton et de moyens de guidage d'au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe et lequel balancier-spiral comporte au moins un tel spiral.The invention relates to a clockwork movement comprising a control rod defining an oriented direction, a platen carrying a pin and means for guiding at least one balance-sprung regulator mechanism pivoting about an axis and which sprung balance comprises at least one such spiral.

L'invention concerne une montre comportant au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe et ledit balancier-spiral comportant au moins un tel spiral, et/ou ladite montre comportant au moins un tel mouvement.The invention relates to a watch comprising at least one balance-sprung regulator mechanism pivoting about an axis and said sprung balance comprising at least one such spiral, and / or said watch comprising at least one such movement.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où :

  • la figure 1 représente, de façon schématisée et en plan, un spiral selon l'invention, positionnée par rapport à une direction axiale d'oscillation, et par rapport à une direction orientée qui correspond classiquement à la direction d'une tige de commande d'un mouvement de montre, et par rapport à un piton de fixation sur une platine de mouvement non représentée ;
  • la figure 2 représente, de façon schématisée et analogue à la figure 1, une variante du spiral de la figure 1 comportant, à son extrémité distale externe, un segment linéaire pour sa fixation au piton ;
  • la figure 3 représente, de façon schématisée et analogue à la figure 1, le spiral de la figure 1 auquel est assemblé un élément séparé rabouté pour la fixation du spiral au piton ;
  • la figure 4 représente, de façon schématisée et analogue à la figure 3, le spiral de la figure 2 auquel est assemblé un élément séparé rabouté pour la fixation du spiral au piton ;
  • la figure 5 représente, de façon schématisée et analogue à la figure 2, le spiral de la figure 2 dont le segment linéaire comporte des amorces de rupture pour l'ajustement de sa fixation au piton ;
  • la figure 6 représente, sous forme schématisée, partielle, et en perspective, une montre comportant un mouvement comportant un ensemble balancier-spiral incorporant un spiral selon l'invention.
Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which:
  • the figure 1 represents schematically and in plan a spiral according to the invention, positioned with respect to an axial direction of oscillation, and with respect to an oriented direction which corresponds classically to the direction of a control rod of a movement of a watch, and with respect to a mounting bolt on a motion plate not shown;
  • the figure 2 represents, in a schematic form and analogous to the figure 1 , a variant of the spiral of the figure 1 having, at its outer distal end, a linear segment for attachment to the peak;
  • the figure 3 represents, in a schematic form and analogous to the figure 1 , the spiral of the figure 1 to which is assembled a separate spliced element for fixing the hairspring to the hanger;
  • the figure 4 represents, in a schematic form and analogous to the figure 3 , the spiral of the figure 2 to which is assembled a separate spliced element for fixing the hairspring to the hanger;
  • the figure 5 represents, in a schematic form and analogous to the figure 2 , the spiral of the figure 2 whose linear segment includes breakaway primers for adjusting its attachment to the stud;
  • the figure 6 represents, in schematic partial form, and in perspective, a watch comprising a movement comprising a balance-sprung assembly incorporating a hairspring according to the invention.

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

L'invention concerne un spiral d'horlogerie 1 amélioré.The invention relates to an improved watch spiral 1.

Selon l'invention, ce spiral d'horlogerie 1 amélioré comporte successivement et formant un ruban continu, depuis une extrémité interne en amont, une spire interne de section dégressive se développant sur moins d'un tour, suivie d'une succession de spires chacune de section toujours supérieure ou égale à celle de la spire directement en amont, et dont au moins une est de section croissante.According to the invention, this improved clockwork spring 1 comprises successively and forming a continuous ribbon, from an inner end upstream, an internal coil of degressive section developing on less than one turn, followed by a succession of turns each of section always greater than or equal to that of the coil directly upstream, and of which at least one is of increasing section.

Plus particulièrement, et tel que visible notamment sur la figure 1, ce spiral 1 comporte successivement, depuis une extrémité interne P0 et en angles au centre par rapport à une référence axiale A, tangentes les unes aux autres et toutes de concavité tournée vers la référence axiale A et formant un ruban continu :

  • une première spire interne jusqu'à un premier point P1, selon un premier angle au centre α1 et de section décroissante dans un premier rapport R1 ;
  • une deuxième spire jusqu'à un deuxième point P2, selon un deuxième angle au centre α2 et de section constante ;
  • une troisième spire jusqu'à un troisième point P3, selon un troisième angle au centre α3 et de section croissante dans un troisième rapport R3 ;
  • une quatrième spire jusqu'à un quatrième point P4, selon un quatrième angle au centre α4 et de section constante ;
  • une cinquième spire jusqu'à un cinquième point P5, selon un cinquième angle au centre α5 et de section croissante dans un cinquième rapport R5 ;
  • une sixième spire externe jusqu'à un sixième point P6, selon un sixième angle au centre α6 et de section croissante dans un sixième rapport R6.
More particularly, and as visible in particular on the figure 1 , this spring 1 comprises successively, from an inner end P0 and at angles in the center relative to an axial reference A, tangent to each other and all of concavity turned towards the axial reference A and forming a continuous ribbon:
  • a first internal turn to a first point P1, at a first angle at the center α1 and of decreasing section in a first ratio R1;
  • a second turn to a second point P2, at a second angle α2 center and constant section;
  • a third turn to a third point P3, at a third angle at the center α3 and of increasing section in a third ratio R3;
  • a fourth turn to a fourth point P4, at a fourth angle to the center α4 and constant section;
  • a fifth turn to a fifth point P5, at a fifth angle at the center α5 and of increasing section in a fifth ratio R5;
  • a sixth outer turn to a sixth point P6, at a sixth angle α6 at the center and increasing section in a sixth ratio R6.

La deuxième spire est constituée en spirale régulière, sur plusieurs tours.The second turn is formed in a regular spiral, on several turns.

Dans une variante illustrée à la figure 2, ce spiral 1 comporte encore un septième segment entre ledit sixième point P6 et un septième point P7, selon un septième angle au centre α7, de section supérieure ou égale à celle de la sixième spire au sixième point P6, s'écartant des spires précédentes, et faisant avec la tangente de la sixième spire au sixième point P6 un angle de déviation e.In a variant illustrated in figure 2 , this spring 1 further comprises a seventh segment between said sixth point P6 and a seventh point P7, according to a seventh angle at the center α7, with a section greater than or equal to that of the sixth turn at the sixth point P6, deviating from the previous turns and making with the tangent of the sixth turn at the sixth point P6 a deflection angle e.

De façon préférée, le premier rapport R1 est compris entre 0,90 et 0,95. Plus particulièrement il est voisin de 0,92.Preferably, the first ratio R1 is between 0.90 and 0.95. More particularly, it is close to 0.92.

De façon préférée, le troisième rapport R3 est compris entre 1,15 et 1,30. Plus particulièrement il est voisin de 1,22.Preferably, the third ratio R3 is between 1.15 and 1.30. More particularly, it is close to 1.22.

De façon préférée, le cinquième rapport R5 est compris entre 1,50 et 1,75. Plus particulièrement il est voisin de 1,64.Preferably, the fifth ratio R5 is between 1.50 and 1.75. In particular, it is close to 1.64.

De façon préférée, le sixième rapport R6 est compris entre 1,25 et 1,40. Plus particulièrement il est voisin de 1,33.Preferably, the sixth ratio R6 is between 1.25 and 1.40. More particularly, it is close to 1.33.

De façon préférée, le premier angle au centre α1 est compris entre 340° et 350°. Plus particulièrement il est voisin de 344°.Preferably, the first central angle α1 is between 340 ° and 350 °. More particularly it is close to 344 °.

De façon préférée, le deuxième angle au centre α2 a la valeur d'un nombre entier de tours d'une spirale régulière à laquelle s'ajoute un angle compris entre 285 ° et 295 °.Preferably, the second central angle α2 has the value of an integer number of turns of a regular spiral to which is added an angle of between 285 ° and 295 °.

De façon préférée, le nombre entier de tours est de treize, et plus particulièrement l'angle ajouté est voisin de 292°.Preferably, the integer number of turns is thirteen, and more particularly the added angle is close to 292 °.

De façon préférée, le troisième angle au centre α3 est compris entre 3° et 7°. Plus particulièrement il est voisin de 5°.Preferably, the third angle α3 at the center is between 3 ° and 7 °. More particularly, it is close to 5 °.

De façon préférée, le quatrième angle au centre α4 est compris entre 115° et 130°. Plus particulièrement il est voisin de 122°.Preferably, the fourth central angle α4 is between 115 ° and 130 °. More particularly, it is close to 122 °.

De façon préférée, le cinquième angle au centre α5 est compris entre 3° et 7°. Plus particulièrement il est voisin de 5°.Preferably, the fifth angle α5 at the center is between 3 ° and 7 °. More particularly, it is close to 5 °.

De façon préférée, le sixième angle au centre α6 est compris entre 30° et 50°. Plus particulièrement il est voisin de 40°.Preferably, the sixth central angle α6 is between 30 ° and 50 °. More particularly, it is close to 40 °.

De façon préférée, dans la variante de la figure 2, le septième segment s'étend dans une zone balayée par un septième angle au centre α7 compris entre 20° et 25°, et l'angle de déviation e compris entre 45° et 65°. Plus particulièrement le septième angle au centre α7 est voisin de 22°. Plus particulièrement l'angle de déviation e est voisin de 55°.Preferably, in the variant of figure 2 , the seventh segment extends in a zone swept by a seventh angle at the center α7 between 20 ° and 25 °, and the deflection angle e between 45 ° and 65 °. More particularly, the seventh angle at the center α7 is close to 22 °. More particularly, the angle of deviation e is close to 55 °.

De façon préférée, le spiral 1 est de hauteur constante selon une direction axiale A, cette hauteur étant comprise entre 0,14 mm et 0,16 mm.Preferably, the hairspring 1 is of constant height in an axial direction A, this height being between 0.14 mm and 0.16 mm.

De façon préférée, à l'état libre, le rayon intérieur du spiral 1 au niveau de la première spire interne est compris entre 0,45 et 0,55 mm, et son rayon extérieur au niveau de la sixième spire externe est compris entre 2,70 et 2,80 mm.Preferably, in the free state, the inner radius of the spiral 1 at the first inner turn is between 0.45 and 0.55 mm, and its outer radius at the sixth outer turn is between 2 , 70 and 2.80 mm.

Dans une variante avantageuse, tel que visible à la figure 5, le spiral 1 est localement sécable et comporte à cet effet, à son extrémité extérieure distale 11 de sa spire extérieure 12, des amorces de rupture 15 prévues pour réduire sa longueur, pour l'ajustement de sa fixation à un piton 5.In an advantageous variant, as visible in FIG. figure 5 , the spiral 1 is locally breakable and has for this purpose, at its distal outer end 11 its outer turn 12, breaking primers 15 provided to reduce its length, for the adjustment of its attachment to a peak 5.

Dans une variante avantageuse, le spiral 1 est monobloc, en silicium monocristallin de module d'Young E compris entre 140000 N/mm2 et 150000 N/mm2 et de masse volumique p comprise entre 2,30 g/cm3 et 2,40 g/cm3.In an advantageous variant, the hairspring 1 is monobloc, made of monocrystalline silicon of Young's modulus E between 140000 N / mm 2 and 150000 N / mm 2 and density p between 2.30 g / cm 3 and 2, 40 g / cm 3 .

Dans une autre variante, le spiral 1 est monobloc, en oxyde de silicium ou quartz monocristallin ou en quartz polycristallin ou en diamant monocristallin ou en diamant polycristallin.In another variant, the spiral 1 is monobloc, silicon oxide or monocrystalline quartz or polycrystalline quartz or monocrystalline diamond or polycrystalline diamond.

L'invention concerne encore un mouvement 100 d'horlogerie comportant une tige 3 de commande définissant une direction orientée D, une platine 4 porteuse d'un piton 5 et de moyens de guidage d'au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe A. Ce mécanisme régulateur comporte au moins un tel spiral 1.The invention also relates to a watch movement 100 comprising a control rod 3 defining a direction oriented D, a plate 4 carrying a stud 5 and guide means of at least one balance-spiral regulator mechanism pivoting around of an axis A. This regulating mechanism comprises at least one such spiral 1.

Dans une réalisation particulière, ce spiral 1 est attaché au piton 5 au niveau d'une extrémité extérieure distale 11 de sa spire extérieure 12, en un point formant avec la direction orientée D un angle de pitonnage AP. Le spiral 1 est fixé à une virole de balancier 19 par un point d'attache intérieur 13 à l'extrémité de sa spire intérieure 14, ce point d'attache intérieur 13 formant avec la direction orientée D un angle d'attache AA dans la position d'équilibre du balancier.In a particular embodiment, this hairspring 1 is attached to the peg 5 at a distal outer end 11 of its outer turn 12, at a point forming with the direction D a pinning angle AP. The hairspring 1 is fixed to a rocker shell 19 by an internal attachment point 13 at the end of its inner turn 14, this internal attachment point 13 forming with the direction D a fastening angle AA in the balance position of the balance.

Dans une réalisation particulière et préférée, pour un balancier d'une inertie de 21 mg.cm2 et pour un ensemble balancier-spiral oscillant à 4 Hz, l'angle d'attache AA est compris entre 180° et 200°, et l'angle de pitonnage AP est compris entre 95 et 115°.In a particular and preferred embodiment, for a balance wheel with an inertia of 21 mg.cm 2 and for a pendulum-balance assembly oscillating at 4 Hz, the angle of attachment AA is between 180 ° and 200 °, and the AP pitting angle is between 95 and 115 °.

Dans une variante particulière illustrée à la figure 3 ou à la figure 4, le spiral 1 est fixé au piton 5 par un élément séparé 6 rabouté sur ledit spiral 1.In a particular variant illustrated in figure 3 or at figure 4 , the hairspring 1 is fixed to the peg 5 by a separate element 6 joined to said hairspring 1.

De préférence, cet élément séparé 6 rabouté sur le spiral 1 est réalisé dans le même matériau que le spiral 1, avec le même module d'Young E et la même masse volumique p, et est de rigidité supérieure à celle du spiral 1 en tout point de la spire extérieure 12 du spiral 1.Preferably, this separate element 6 joined to the hairspring 1 is made of the same material as the hairspring 1, with the same Young's modulus E and the same density p, and is of greater rigidity than the hairspring 1 in all point of the outer turn 12 of the hairspring 1.

L'invention concerne encore une montre 200 comportant au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe A comportant au moins un tel spiral 1, et/ou cette montre 200 comporte au moins un tel mouvement 100.The invention also relates to a watch 200 comprising at least one balance-sprung regulator mechanism pivoting about an axis A comprising at least one such spiral 1, and / or this watch 200 comprises at least one such movement 100.

Dans une technologie silicium ou « MEMS » ou « LIGA » ou similaire, il est facile de fabriquer un tel spiral, et notamment avec des parties sécables, ce qui permet l'utilisation d'un même spiral de base pour des mouvements différents, dans des montres ayant différentes configurations, notamment savonnettes ou Lépine en montres de poche. Il est, encore, facile de squeletter la nouvelle plaquette d'extrémité pour diminuer sa masse.In a silicon or "MEMS" or "LIGA" or similar technology, it is easy to manufacture such a hairspring, and especially with breakable parts, which allows the use of the same hairspring for different movements, in watches with different configurations, including soap or Lépine in pocket watches. It is still easy to skeleton the new end plate to reduce its mass.

Claims (25)

Spiral d'horlogerie (1) amélioré, caractérisé en ce qu'il comporte successivement et formant un ruban continu, depuis une extrémité interne en amont, une spire interne de section dégressive se développant sur moins d'un tour, suivie d'une succession de spires chacune de section toujours supérieure ou égale à celle de la spire directement en amont, et dont au moins une est de section croissante.A clockwork spiral (1) improved, characterized in that it comprises successively and forming a continuous ribbon, from an inner end upstream, an internal turn of degressive section developing on less than one turn, followed by a succession of turns each of section always greater than or equal to that of the coil directly upstream, and of which at least one is of increasing section. Spiral d'horlogerie (1) selon la revendication 1, caractérisé en ce qu'il comporte successivement, depuis une extrémité interne (P0) et en angles au centre par rapport à une référence axiale (A), tangentes les unes aux autres et toutes de concavité tournée vers ladite référence axiale (A), et formant un ruban continu : - une première spire interne jusqu'à un premier point (P1), selon un premier angle au centre (α1) et de section décroissante dans un premier rapport (R1) ; - une deuxième spire jusqu'à un deuxième point (P2), selon un deuxième angle au centre (α2) et de section constante ; - une troisième spire jusqu'à un troisième point (P3), selon un troisième angle au centre (α3) et de section croissante dans un troisième rapport (R3) ; - une quatrième spire jusqu'à un quatrième point (P4), selon un quatrième angle au centre (α4) et de section constante ; - une cinquième spire jusqu'à un cinquième point (P5), selon un cinquième angle au centre (α5) et de section croissante dans un cinquième rapport (R5) ; - une sixième spire externe jusqu'à un sixième point (P6), selon un sixième angle au centre (α6) et de section croissante dans un sixième rapport (R6). Clockwork spiral (1) according to claim 1, characterized in that it comprises successively, from an inner end (P0) and at angles in the center relative to an axial reference (A), tangent to each other and all concavity facing said axial reference (A), and forming a continuous ribbon: a first internal turn to a first point (P1), at a first angle in the center (α1) and of decreasing section in a first ratio (R1); a second turn to a second point (P2), according to a second central angle (α2) and of constant section; a third turn to a third point (P3), according to a third angle at the center (α3) and of increasing section in a third ratio (R3); a fourth turn to a fourth point (P4), at a fourth angle at the center (α4) and of constant section; a fifth turn to a fifth point (P5), according to a fifth angle at the center (α5) and of increasing section in a fifth ratio (R5); - a sixth outer turn to a sixth point (P6), according to a sixth central angle (α6) and increasing section in a sixth ratio (R6). Spiral (1) selon la revendication 2, caractérisé en ce qu'il comporte encore un septième segment entre ledit sixième point (P6) et un septième point (P7), selon un septième angle au centre (α7), de section supérieure ou égale à celle de ladite sixième spire audit sixième point (P6), s'écartant des spires précédentes, et faisant avec la tangente de ladite sixième spire audit sixième point (P6) un angle de déviation (e).Spiral (1) according to claim 2, characterized in that it further comprises a seventh segment between said sixth point (P6) and a seventh point (P7), according to a seventh central angle (α7), with a cross section greater than or equal to to that of said sixth turn at said sixth point (P6), deviating from the preceding turns, and making with the tangent of said sixth turn at said sixth point (P6) a deflection angle (e). Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit premier rapport (R1) est compris entre 0,90 et 0,95.Spiral (1) according to one of the preceding claims, characterized in that said first ratio (R1) is between 0.90 and 0.95. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit troisième rapport (R3) est compris entre 1,15 et 1,30.Spiral (1) according to one of the preceding claims, characterized in that said third ratio (R3) is between 1.15 and 1.30. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit cinquième rapport (R5) est compris entre 1,50 et 1,75.Spiral (1) according to one of the preceding claims, characterized in that said fifth ratio (R5) is between 1.50 and 1.75. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit sixième rapport (R1) est compris entre 1,25 et 1,40.Spiral (1) according to one of the preceding claims, characterized in that said sixth ratio (R1) is between 1.25 and 1.40. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit premier angle au centre (α1) est compris entre 340° et 350°.Spiral (1) according to one of the preceding claims, characterized in that said first central angle (α1) is between 340 ° and 350 °. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit deuxième angle au centre (α2) a la valeur d'un nombre entier de tours d'une spirale régulière à laquelle s'ajoute un angle compris entre 285° et 295°.Spiral (1) according to one of the preceding claims, characterized in that said second central angle (α2) has the value of an integer number of turns of a regular spiral to which is added an angle of between 285 ° and 295 °. Spiral (1) selon la revendication précédente, caractérisé en ce que ledit nombre entier de tours est de treizeSpiral (1) according to the preceding claim, characterized in that said integer number of turns is thirteen Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit troisième angle au centre (α3) est compris entre 3° et 7°.Spiral (1) according to one of the preceding claims, characterized in that said third angle in the center (α3) is between 3 ° and 7 °. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit quatrième angle au centre (α4) est compris entre 115° et 130°.Spiral (1) according to one of the preceding claims, characterized in that said fourth central angle (α4) is between 115 ° and 130 °. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit cinquième angle au centre (α5) est compris entre 3° et 7°.Spiral (1) according to one of the preceding claims, characterized in that said fifth angle in the center (α5) is between 3 ° and 7 °. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que ledit sixième angle au centre (α6) est compris entre 30° et 50°.Spiral (1) according to one of the preceding claims, characterized in that said sixth central angle (α6) is between 30 ° and 50 °. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce qu'il comporte encore un septième segment entre ledit sixième point (P6) et un septième point (P7), selon un septième angle au centre (α7) compris entre 20° et 25°, de section supérieure ou égale à celle de ladite sixième spire audit sixième point (P6), et faisant avec la tangente de ladite sixième spire audit sixième point (P6) un angle de déviation (e) compris entre 45° et 65°.Spiral (1) according to one of the preceding claims, characterized in that it further comprises a seventh segment between said sixth point (P6) and a seventh point (P7), according to a seventh central angle (α7) between 20 ° and 25 °, of section greater than or equal to that of said sixth turn at said sixth point (P6), and making with the tangent of said sixth turn at said sixth point (P6) a deflection angle (e) of between 45 ° and 65 °. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce qu'il est de hauteur constante selon une direction axiale (A), ladite hauteur étant comprise entre 0,14 mm et 0,16 mm.Spiral (1) according to one of the preceding claims, characterized in that it is of constant height in an axial direction (A), said height being between 0.14 mm and 0.16 mm. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce que, à l'état libre, son rayon intérieur au niveau de ladite première spire est compris entre 0,45 et 0,55 mm, et que son rayon extérieur au niveau de ladite sixième spire est compris entre 2,70 et 2,80 mm.Spiral (1) according to one of the preceding claims, characterized in that , in the free state, its inner radius at said first turn is between 0.45 and 0.55 mm, and that its outer radius at said sixth turn is between 2.70 and 2.80 mm. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce qu'il est sécable et comporte à cet effet, à son extrémité extérieure distale (11) de sa spire extérieure (12), des amorces de rupture (15) prévues pour réduire sa longueur.Spiral (1) according to one of the preceding claims, characterized in that it is breakable and comprises for this purpose, at its distal outer end (11) of its outer turn (12), breakers (15) provided to reduce its length. Spiral (1) selon l'une des revendications précédentes, caractérisé en ce qu'il est monobloc, en silicium monocristallin de module d'Young (E) compris entre 140000 N/mm2 et 150000 N/mm2 et de masse volumique (p) comprise entre 2,30 g/cm3 et 2,40 g/cm3.Spiral (1) according to one of the preceding claims, characterized in that it is monobloc, made of monocrystalline silicon of Young's modulus (E) of between 140000 N / mm 2 and 150000 N / mm 2 and of density ( p) of 2.30 g / cm 3 to 2.40 g / cm 3 . Spiral (1) selon l'une des revendications 1 à 18, caractérisé en ce qu'il est monobloc, en oxyde de silicium ou quartz monocristallin ou en quartz polycristallin ou en diamant monocristallin ou en diamant polycristallin.Spiral (1) according to one of claims 1 to 18, characterized in that it is monobloc, silicon oxide or monocrystalline quartz or polycrystalline quartz or monocrystalline diamond or polycrystalline diamond. Mouvement (100) d'horlogerie comportant une tige (3) de commande définissant une direction orientée (D), une platine (4) porteuse d'un piton (5) et de moyens de guidage d'au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe (A) et lequel balancier-spiral comporte au moins un dit spiral (1) selon l'une des revendications précédentes.Clockwork movement (100) comprising a control rod (3) defining an oriented direction (D), a turntable (4) carrying a pin (5) and means for guiding at least one rocker mechanism -Spiral pivoting about an axis (A) and which sprung balance comprises at least one said spiral (1) according to one of the preceding claims. Mouvement (100) selon la revendication 21, caractérisé en ce que ledit spiral est attaché audit piton (5) au niveau d'une extrémité extérieure distale (11) de sa spire extérieure (12) en un point formant avec ladite direction orientée (D) un angle de pitonnage (AP), ledit spiral (1) étant fixé à une virole de balancier par un point d'attache intérieur (13) à l'extrémité de sa spire intérieure (14), ledit point d'attache intérieur (13) formant avec ladite direction orientée (D) un angle d'attache (AA) dans la position d'équilibre dudit balancier, caractérisé en ce que ledit angle d'attache (AA) est compris entre 180° et 200°, et en ce que ledit angle de pitonnage (AP) est compris entre 95 et 115°.Movement (100) according to claim 21, characterized in that said hairspring is attached to said pin (5) at a distal outer end (11) of its outer turn (12) at a point forming with said direction oriented (D). ) a peg angle (AP), said hairspring (1) being attached to a rocker shell by an inner attachment point (13) at the end of its inner turn (14), said internal attachment point (13); 13) forming with said facing direction (D) an attachment angle (AA) in the equilibrium position of said rocker, characterized in that said attachment angle (AA) is between 180 ° and 200 °, and that said angle of pitonnage (AP) is between 95 and 115 °. Mouvement (100) selon la revendication 21 ou 22, caractérisé en ce que ledit spiral (1) est fixé audit piton (5) par un élément séparé (6) rabouté sur ledit spiral (1).Movement (100) according to claim 21 or 22, characterized in that said hairspring (1) is fixed to said peg (5) by a separate element (6) attached to said hairspring (1). Mouvement (100) selon la revendication précédente, caractérisé en ce que ledit élément séparé (6) rabouté sur ledit spiral (1) est réalisé dans le même matériau que ledit spiral (1), avec le même module d'Young (E) et la même masse volumique (p), et est de rigidité supérieure à celle dudit spiral (1) en tout point de ladite spire extérieure (12) dudit spiral (1).Movement (100) according to the preceding claim, characterized in that said separate element (6) attached to said hairspring (1) is made of the same material as said hairspring (1), with the same Young's modulus (E) and the same density (p), and is of greater rigidity than that of said hairspring (1) at any point of said outer turn (12) of said hairspring (1). Montre (200) comportant au moins un mécanisme régulateur à balancier-spiral pivotant autour d'un axe (A) et ledit balancier-spiral comportant au moins un dit spiral (1) selon l'une des revendications 1 à 20, et/ou ladite montre (200) comportant au moins un mouvement (100) selon l'une des revendications 21 à 24.Watch (200) comprising at least one balance-sprung regulator mechanism pivoting about an axis (A) and said sprung balance having at least one said spiral (1) according to one of claims 1 to 20, and / or said watch (200) comprising at least one movement (100) according to one of claims 21 to 24.
EP14155196.0A 2014-02-14 2014-02-14 Clock hairspring Active EP2908183B1 (en)

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EP14155196.0A EP2908183B1 (en) 2014-02-14 2014-02-14 Clock hairspring
US14/612,598 US9239569B2 (en) 2014-02-14 2015-02-03 Timepiece balance spring
JP2015024962A JP5976860B2 (en) 2014-02-14 2015-02-12 Balance spring for timer
CN201510078554.8A CN104849995B (en) 2014-02-14 2015-02-13 Timepiece balance spring
RU2015105009A RU2675181C2 (en) 2014-02-14 2015-02-13 Clock balance spring
HK16101511.0A HK1213647A1 (en) 2014-02-14 2016-02-11 Timepiece balance spring

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CN104849995A (en) 2015-08-19
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HK1213647A1 (en) 2016-07-08
RU2675181C2 (en) 2018-12-17
EP2908183B1 (en) 2018-04-18
RU2015105009A3 (en) 2018-09-26
US20150234355A1 (en) 2015-08-20
RU2015105009A (en) 2016-09-10
CN104849995B (en) 2017-05-24

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