EP3401740A1 - Flashless timepiece setting component - Google Patents

Flashless timepiece setting component Download PDF

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Publication number
EP3401740A1
EP3401740A1 EP17170789.6A EP17170789A EP3401740A1 EP 3401740 A1 EP3401740 A1 EP 3401740A1 EP 17170789 A EP17170789 A EP 17170789A EP 3401740 A1 EP3401740 A1 EP 3401740A1
Authority
EP
European Patent Office
Prior art keywords
watch component
opening
arcuate portion
component
notch
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
EP17170789.6A
Other languages
German (de)
French (fr)
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EP3401740B1 (en
Inventor
Sylvain Geiser
David Chabloz
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 EP17170789.6A priority Critical patent/EP3401740B1/en
Publication of EP3401740A1 publication Critical patent/EP3401740A1/en
Application granted granted Critical
Publication of EP3401740B1 publication Critical patent/EP3401740B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • 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
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
    • 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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel

Definitions

  • the present invention relates to a watch component intended to be integrated in a timepiece such as a wristwatch or a pocket watch.
  • the present invention more particularly relates to a watch component intended to be assembled to a part, such as an axis, by driving.
  • Hunting is a method of pressure insertion assembly. The holding in position of components assembled in this way is guaranteed by the friction forces exerted between the contact surfaces.
  • FIGS. 6a, 6b , 6c and 6d show structures of the prior art used for hunting.
  • cells 22, aimed at reducing the interaction between the component 20 having a hole and the axis 21 that it receives, can be formed in the inner surface of the hole, as illustrated in FIG. figure 6b . However, this does not eliminate the burrs.
  • FIG. Figure 6c The thesis "Towards mastering the quality of precision assemblies" by F. Bourgeois, Swiss Federal Institute of Technology Lausanne, Switzerland, 2007 , describes a component 30 as shown in FIG. Figure 6c comprising a hole 31 for receiving a shaft by driving. As illustrated in Figure 6c , the hole 31 receiving the axis is flanked by grooves 33 for varying the rigidity by decreasing the contact surfaces between the component 30 and the remainder of the inner surface of the hole 31.
  • This component 30 also comprises recesses 32 in form of bananas behind the grooves 33 to increase the elasticity of the part of the component around the hole 31.
  • Such a component 30 however does not appear satisfactory and should cause the formation of burrs by the presence of ridges at the junction points between the grooves 33 and the rest of the inner surface of hole 31.
  • the object of the present invention is to provide a watch component intended to be assembled to a part by driving which allows a good performance while decreasing or even canceling the formation of burrs.
  • the invention proposes a watchmaking component comprising a through opening of center O whose contour is closed and at least one light around the opening, the opening and the at least one light defining between them a wall whose internal surface defines said closed contour, the wall being attached to the remainder of the component by at least one connecting zone, the wall being able to deform radially elastically and plastically when a portion of circular section of a piece in the opening, said inner surface comprising a notch opposite the or each of the connecting zones and at least a portion of an arc of center circle interspersed with the at least one notch, characterized in that the or each notch has a bottom and two connecting parts, each connecting part connecting the bottom to one end of the at least one arcuate portion being tangent to the arcuate portion corresponding to the point d j junction with the latter and having at all points a radius of curvature greater than that of the at least one portion in an arc.
  • the invention also proposes an assembly comprising such a watch component and a part comprising a section with a circular section, said section with circular section being driven into the opening of the watch component.
  • the invention also proposes a timepiece such as a wristwatch or a pocket watch comprising such a set.
  • the watch component according to the invention is able to be assembled by driving with good resistance and without creating a burr to a part comprising a portion with a circular section.
  • a watch component 1 according to the invention comprises a through opening 2 of center O whose contour is closed and two slots 3 uniformly distributed around the opening 2 defining between them two connecting zones 4 located on a concentric circle c with opening 2.
  • the opening 2 is intended to receive an axis and is able to deform radially elastically and plastically when flushing said axis.
  • the opening 2 and the openings 3 define between them a cylindrical wall 6 which is attached to the rest of the component by the connecting zones 4.
  • the cylindrical wall 6 has a small elasticity due to its small thickness, which allows it to deform first radially elastically, sufficiently, then radially plastically during the driving of the axis in the opening 2. In practice, the cylindrical wall 6 swells and deforms a lot when driving the axis, thus providing a good holding the watch component 1 on said axis.
  • the lights 3 each have a closed outline. They are oblong, extend along the circle c and typically have the same shape and dimensions.
  • the set up of aperture 2 and lights 3 shown in FIG. figure 1 comprises two axes of symmetry S 1 , S 2 .
  • the lights 3 may be open contour, preferably almost completely closed, and / or be of different shapes or sizes.
  • the watch component 1 is typically made of a metallic material (metal or alloy) such as nickel or nickel-phosphorus, steel, copper, beryllium, brass, aluminum, titanium, gold, silver platinum or an alloy of copper, nickel and zinc such as nickel silver but it can also be made of any other material having a field of elastic deformation and a plastic deformation field.
  • a metallic material such as nickel or nickel-phosphorus, steel, copper, beryllium, brass, aluminum, titanium, gold, silver platinum or an alloy of copper, nickel and zinc such as nickel silver but it can also be made of any other material having a field of elastic deformation and a plastic deformation field.
  • the inner surface of the opening 2 of the watch component 1 shown in FIG. figure 1 comprises a notch 5 opposite each of the connecting zones 4 as well as portions of an arc of circle 2a of center O interposed between the notches 5 and each extending over an angle of about 115 °.
  • connection areas 4 During the driving of the axis in the opening 2, in the absence of the notches 5 the connection areas 4 would be subjected to high stresses because they can not deform radially. Each notch 5 is intended to reduce the stresses at the connecting zone 4 to which it faces, thereby reducing the formation of burrs.
  • the arcuate portions 2a may extend at an angle other than 115 °, but this angle is typically at least 15 °, preferably at least 25 °, preferably at least 35 °, preferably at least 45 °, preferably at least 55 °, preferably at least 65 °, preferably at least 75 °, preferably at least 85 °, preferably at least 95 °, preferably at least 105 °, more preferably at least 115 °.
  • the angle over which the portions in a circular arc 2a extend must indeed be sufficient to ensure a good retention of the axis to be chased inside the opening 2 and to avoid too close contact areas between the axis and the internal surface of the opening 2, in particular point contacts which cause the formation of burrs when hunting.
  • each arcuate portion 2a extends from one end of a notch 5 to one end of the other notch 5.
  • Each notch 5 has a bottom 5a and two connecting portions 5b connecting the bottom 5a to the two circular arc portions 2a which surround it.
  • This bottom 5a is advantageously in an arc of smaller radius of curvature than that of the arcuate portions 2a.
  • Each connecting portion 5b is tangent to the arcuate portion 2a corresponding to the point of junction with the latter and has, at any point, a radius of curvature greater than that of the arcuate portions 2a. This avoids the creation of ridges or reliefs, bumps or hollows, small radii of curvature which cause the formation of burrs during the driving of the axis.
  • the connecting portions 5b may, for example, consist of straight lines in which case they have an infinite radius of curvature, or curves, typically of circular arcs, having an inverted convexity with respect to that of the arcuate portions 2a. .
  • Each connecting portion 5b is preferably also tangent to the bottom 5a at the junction with the latter.
  • the radial distance between each arcuate portion 2a and the lumen 3 facing it (thickness of the cylindrical wall 6) is preferably at least 5%, preferably at least 10%, preferably at least 15%. %, preferably at least 20%, preferably at least 25%, more preferably at least 30%, of the radius of the arcuate portions 2a. It is also preferably at most 50%, preferably at most 45%, preferably at most 40%, more preferably at most 35%, of the radius of the arcuate portions 2a.
  • Such proportions make it possible to ensure a controlled elasticity of the cylindrical wall 6 so that it can deform elastically and then plastically during the driving of an axis of radius greater than the radius of the arcuate portions 2a in the opening 2 of way to ensure a holding sufficient axis in the opening 2 without causing burrs when inserted.
  • the watch component according to the invention may comprise more than two lights 3. It can typically comprise three, as illustrated in FIG. figure 2 , four, as illustrated in figure 3 , or more.
  • the number of lights 3 is preferably at most equal to four to allow the arcuate portions 2a to have the largest possible extent.
  • the watch components according to variants comprising more than two lights 3 are also distinguished from the watch component 1 comprising two lights 3 described above by their number of connecting zones 4, notches 5 and axes of symmetry S 1 , S 2 , S 3 , S 4 .
  • the watch component 1 may comprise only a slot 3 extending over a circle c 'concentric with the opening 2, as illustrated in FIG. figure 4 .
  • the component 1 typically comprises a connecting zone 4 placed on the circle c 'concentric with the opening 2, between the ends of this light 3, and a notch 5 facing the connection zone 4.
  • light 3 has a completely closed contour.
  • Each notch 5 is preferably centered with respect to the connecting zone 4 to which it faces.
  • the assembly consisting of the opening 2 and the or lights 3 of the watch component 1 according to the invention typically comprises as many axis (s) of symmetry S 1 , S 2 , S 3 , S 4 notch (s) 5.
  • the connecting zones 4 are areas of maximum stress.
  • the lights 3 are therefore advantageously designed to make them as narrow as possible.
  • the watch component 1 according to the invention can be manufactured using conventional machining techniques, typically by LIGA growth. (lithography, electroplating, molding), by milling, by electroerosion, by laser cutting techniques, or by 3D printing.
  • the clock component 1 thus obtained is able to receive a shaft by driving in its opening 2 and allows the realization of an assembly having good support and does not generate the formation of burrs.
  • this part comprises at least a section with circular section, for example cylindrical or conical.
  • This piece may be for example a peg for fixing the outer end of a hairspring, this outer end comprising the opening 2 and the lights 3.
  • the figure 5a illustrates an escape wheel comprising two lights 3 with closed contours, according to the variant of the invention shown in FIG. figure 1 .
  • the figure 5b illustrates, in turn, a timepiece comprising a single light 3 open contour.
  • the component 1 according to the invention could also be for example a rocker, a gear wheel, a pinion, a ferrule, a spiral, a bridge, a plate or any other watch component intended to receive a circular section portion of a part, axis or other, by hunting.
  • the watch component 1 according to the invention is typically used in a timepiece such as a wristwatch or a pocket watch.

Abstract

Le composant horloger (1) comprend une ouverture (2) traversante de centre O dont le contour est fermé et au moins une lumière (3) autour de l'ouverture (2), l'ouverture (2) et l'au moins une lumière (3) définissant entre elles une paroi (6) dont la surface interne définit le contour fermé. La paroi (6) est rattachée au reste du composant par au moins une zone de liaison (4) et est apte à se déformer radialement élastiquement et plastiquement lorsqu'on chasse une partie à section circulaire d'une pièce dans l'ouverture (2). La surface interne de la paroi (6) comprend une encoche (5) en face de la ou chacune des zones de liaison (4) et au moins une portion en arc de cercle (2a) de centre O intercalée avec l'au moins une encoche (5). La ou chaque encoche (5) a un fond (5a) et deux parties de liaison (5b). Chaque partie de liaison (5b) relie le fond (5a) à une extrémité de l'au moins une portion en arc de cercle (2a) en étant tangente à la portion en arc de cercle (2a) correspondante au point de jonction avec cette dernière et a en tout point un rayon de courbure plus grand que celui de l'au moins une portion en arc de cercle (2a).The watch component (1) comprises a through opening (2) of center O whose contour is closed and at least one lumen (3) around the opening (2), the opening (2) and the at least one light (3) defining between them a wall (6) whose inner surface defines the closed contour. The wall (6) is attached to the remainder of the component by at least one connecting zone (4) and is able to deform radially elastically and plastically when a circular section of a part is driven into the opening (2). ). The inner surface of the wall (6) comprises a notch (5) in front of the or each of the connecting zones (4) and at least one arcuate portion (2a) of center O interposed with the at least one notch (5). The or each notch (5) has a bottom (5a) and two connecting portions (5b). Each connecting portion (5b) connects the bottom (5a) to one end of the at least one arcuate portion (2a) tangentially to the arcuate portion (2a) corresponding to the junction point with this last and has in all respects a radius of curvature greater than that of the at least one arcuate portion (2a).

Description

La présente invention concerne un composant horloger destiné à être intégré dans une pièce d'horlogerie telle qu'une montre-bracelet ou une montre de poche. La présente invention concerne plus particulièrement un composant horloger destiné à être assemblé à une pièce, telle qu'un axe, par chassage.The present invention relates to a watch component intended to be integrated in a timepiece such as a wristwatch or a pocket watch. The present invention more particularly relates to a watch component intended to be assembled to a part, such as an axis, by driving.

Le chassage est une méthode d'assemblage par insertion à pression. Le maintien en position de composants assemblés de cette façon est garanti par les forces de frottement s'exerçant entre les surfaces de contact.Hunting is a method of pressure insertion assembly. The holding in position of components assembled in this way is guaranteed by the friction forces exerted between the contact surfaces.

Les figures 6a, 6b, 6c et 6d montrent des structures de l'art antérieur utilisées pour le chassage.The Figures 6a, 6b , 6c and 6d show structures of the prior art used for hunting.

Traditionnellement, le chassage se fait par simple insertion à pression d'un axe 11 dans un composant 10 présentant un trou, comme illustré à la figure 6a. Cette technique engendre la formation de bavures. Il s'agit de parcelles de matière refoulée qui adhèrent plus ou moins fortement. Dans une fabrication soignée, les bavures ne doivent pas subsister; en effet, en se détachant, elles peuvent tomber sur des organes délicats et provoquer des arrêts ou d'autres perturbations du mécanisme.Traditionally, the driving is done by simply inserting a pin 11 into a component 10 having a hole, as illustrated in FIG. figure 6a . This technique causes the formation of burrs. These are parcels of repressed material that adhere more or less strongly. In a careful production, the burrs must not remain; indeed, by detaching themselves, they can fall on delicate organs and cause stops or other disturbances of the mechanism.

Pour atténuer ces bavures, des alvéoles 22, visant à diminuer l'interaction entre le composant 20 présentant un trou et l'axe 21 qu'il reçoit, peuvent être ménagées dans la surface intérieure du trou, comme illustré à la figure 6b. Cependant, cela ne permet pas d'éliminer les bavures.To mitigate these burrs, cells 22, aimed at reducing the interaction between the component 20 having a hole and the axis 21 that it receives, can be formed in the inner surface of the hole, as illustrated in FIG. figure 6b . However, this does not eliminate the burrs.

La thèse « Vers la maîtrise de la qualité des assemblages de précision » de F. Bourgeois, Ecole Polytechnique Fédérale de Lausanne, Suisse, 2007 , décrit un composant 30 tel que représenté à la figure 6c comprenant un trou 31 destiné à recevoir un axe par chassage. Comme illustré à la figure 6c, le trou 31 recevant l'axe est bordé de cannelures 33 visant à faire varier la rigidité en diminuant les surfaces de contact entre le composant 30 et le reste de la surface intérieure du trou 31. Ce composant 30 comprend également des évidements 32 en forme de bananes derrière les cannelures 33 pour augmenter l'élasticité de la partie du composant autour du trou 31. Un tel composant 30 ne semble cependant pas satisfaisant et devrait entraîner la formation de bavures de par la présence d'arêtes aux points de jonction entre les cannelures 33 et le reste de la surface intérieure du trou 31.The thesis "Towards mastering the quality of precision assemblies" by F. Bourgeois, Swiss Federal Institute of Technology Lausanne, Switzerland, 2007 , describes a component 30 as shown in FIG. Figure 6c comprising a hole 31 for receiving a shaft by driving. As illustrated in Figure 6c , the hole 31 receiving the axis is flanked by grooves 33 for varying the rigidity by decreasing the contact surfaces between the component 30 and the remainder of the inner surface of the hole 31. This component 30 also comprises recesses 32 in form of bananas behind the grooves 33 to increase the elasticity of the part of the component around the hole 31. Such a component 30 however does not appear satisfactory and should cause the formation of burrs by the presence of ridges at the junction points between the grooves 33 and the rest of the inner surface of hole 31.

Afin d'éviter tout phénomène de déformation plastique, il a également été proposé dans la demande de brevet européen EP1708045 de la présente demanderesse de border la surface intérieure du trou de bras élastiques 42 ne subissant qu'une déformation élastique lors du chassage de l'axe 41 dans le composant 40 présentant un trou, comme illustré à la figure 6d. Bien qu'évitant les bavures, ce type de structure n'est pas pleinement satisfaisant car il ne permet d'obtenir qu'une faible tenue.In order to avoid any phenomenon of plastic deformation, it has also been proposed in the European patent application EP1708045 of the present Applicant to border the inner surface of the elastic arm hole 42 undergoing only an elastic deformation during the driving of the shaft 41 in the component 40 having a hole, as shown in FIG. figure 6d . Although avoiding burrs, this type of structure is not fully satisfactory because it allows to obtain a low resistance.

Le but de la présente invention est de fournir un composant horloger destiné à être assemblé à une pièce par chassage qui permette une bonne tenue tout en diminuant voire en annulant la formation de bavures.The object of the present invention is to provide a watch component intended to be assembled to a part by driving which allows a good performance while decreasing or even canceling the formation of burrs.

L'invention propose à cette fin un composant horloger comprenant une ouverture traversante de centre O dont le contour est fermé et au moins une lumière autour de l'ouverture, l'ouverture et l'au moins une lumière définissant entre elles une paroi dont la surface interne définit ledit contour fermé, la paroi étant rattachée au reste du composant par au moins une zone de liaison, la paroi étant apte à se déformer radialement élastiquement et plastiquement lorsqu'on chasse une partie à section circulaire d'une pièce dans l'ouverture, ladite surface interne comprenant une encoche en face de la ou chacune des zones de liaison et au moins une portion en arc de cercle de centre O intercalée avec l'au moins une encoche, caractérisé en ce que la ou chaque encoche a un fond et deux parties de liaison, chaque partie de liaison reliant le fond à une extrémité de l'au moins une portion en arc de cercle en étant tangente à la portion en arc de cercle correspondante au point de jonction avec cette dernière et ayant en tout point un rayon de courbure plus grand que celui de l'au moins une portion en arc de cercle.To this end, the invention proposes a watchmaking component comprising a through opening of center O whose contour is closed and at least one light around the opening, the opening and the at least one light defining between them a wall whose internal surface defines said closed contour, the wall being attached to the remainder of the component by at least one connecting zone, the wall being able to deform radially elastically and plastically when a portion of circular section of a piece in the opening, said inner surface comprising a notch opposite the or each of the connecting zones and at least a portion of an arc of center circle interspersed with the at least one notch, characterized in that the or each notch has a bottom and two connecting parts, each connecting part connecting the bottom to one end of the at least one arcuate portion being tangent to the arcuate portion corresponding to the point d j junction with the latter and having at all points a radius of curvature greater than that of the at least one portion in an arc.

L'invention propose également un ensemble comprenant un tel composant horloger et une pièce comprenant une partie à section circulaire, ladite partie à section circulaire étant chassée dans l'ouverture du composant horloger.The invention also proposes an assembly comprising such a watch component and a part comprising a section with a circular section, said section with circular section being driven into the opening of the watch component.

L'invention propose également une pièce d'horlogerie telle qu'une montre-bracelet ou une montre de poche comprenant un tel ensemble.The invention also proposes a timepiece such as a wristwatch or a pocket watch comprising such a set.

Le composant horloger selon l'invention est apte à être assemblé par chassage avec une bonne tenue et sans création de bavure à une pièce comprenant une partie à section circulaire.The watch component according to the invention is able to be assembled by driving with good resistance and without creating a burr to a part comprising a portion with a circular section.

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 est une représentation schématique en vue de dessus d'une partie d'un composant horloger selon l'invention ;
  • la figure 2 est une représentation schématique en vue de dessus d'une partie d'une variante du composant horloger représenté à la figure 1 ;
  • la figure 3 est une représentation schématique en vue de dessus d'une partie d'une autre variante du composant horloger représenté à la figure 1 ;
  • la figure 4 est une représentation schématique en vue de dessus d'une partie d'une autre variante du composant horloger représenté à la figure 1 ;
  • la figure 5a est une vue de dessus d'une roue d'échappement selon la variante représentée à la figure 1 ;
  • la figure 5b est une représentation schématique en vue de dessus d'une aiguille d'horlogerie selon l'invention ;
  • la figure 6a, déjà commentée, est une représentation graphique d'un composant horloger de la technique antérieure présentant un trou dans lequel est chassé un axe ;
  • la figure 6b, déjà commentée, est une représentation graphique d'un composant horloger de la technique antérieure présentant un trou avec des alvéoles visant à diminuer l'interaction entre le composant et un axe à assembler ;
  • la figure 6c, déjà commentée, est une représentation graphique d'un composant horloger de la technique antérieure présentant un trou avec des cannelures et des évidements ; et
  • la figure 6d, déjà commentée, est une représentation graphique d'un composant horloger de la technique antérieure présentant un trou comprenant des bras élastiques ne subissant qu'une déformation élastique lors du chassage.
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:
  • the figure 1 is a schematic representation in plan view of a part of a watch component according to the invention;
  • the figure 2 is a schematic representation in plan view of a part of a variant of the watch component represented in FIG. figure 1 ;
  • the figure 3 is a schematic representation in plan view of a portion of another variant of the watch component shown in FIG. figure 1 ;
  • the figure 4 is a schematic representation in plan view of a portion of another variant of the watch component shown in FIG. figure 1 ;
  • the figure 5a is a top view of an escape wheel according to the variant shown in FIG. figure 1 ;
  • the figure 5b is a schematic representation in plan view of a timepiece according to the invention;
  • the figure 6a , already commented, is a graphic representation of a timepiece component of the prior art having a hole in which an axis is driven;
  • the figure 6b , already commented, is a graphic representation of a prior art watch component having a hole with cells to reduce the interaction between the component and an axis to assemble;
  • the Figure 6c , already commented upon, is a graphic representation of a prior art watch component having a hole with grooves and recesses; and
  • the figure 6d , already commented, is a graphical representation of a timepiece component of the prior art having a hole comprising resilient arms only undergoing elastic deformation during driving.

En référence à la figure 1, un composant horloger 1 selon l'invention comprend une ouverture 2 traversante de centre O dont le contour est fermé et deux lumières 3 uniformément réparties autour de l'ouverture 2 définissant entre elles deux zones de liaison 4 situées sur un cercle c concentrique avec l'ouverture 2.With reference to the figure 1 , a watch component 1 according to the invention comprises a through opening 2 of center O whose contour is closed and two slots 3 uniformly distributed around the opening 2 defining between them two connecting zones 4 located on a concentric circle c with opening 2.

L'ouverture 2 est destinée à recevoir un axe et est apte à se déformer radialement élastiquement et plastiquement lorsqu'on y chasse ledit axe. L'ouverture 2 et les lumières 3 définissent entre elles une paroi cylindrique 6 qui est rattachée au reste du composant par les zones de liaison 4. La paroi cylindrique 6 présente du fait de sa faible épaisseur une certaine élasticité ce qui lui permet de se déformer d'abord radialement élastiquement, de manière suffisante, puis radialement plastiquement lors du chassage de l'axe dans l'ouverture 2. En pratique, la paroi cylindrique 6 gonfle et se déforme beaucoup lors du chassage de l'axe, offrant ainsi une bonne tenue du composant horloger 1 sur ledit axe.The opening 2 is intended to receive an axis and is able to deform radially elastically and plastically when flushing said axis. The opening 2 and the openings 3 define between them a cylindrical wall 6 which is attached to the rest of the component by the connecting zones 4. The cylindrical wall 6 has a small elasticity due to its small thickness, which allows it to deform first radially elastically, sufficiently, then radially plastically during the driving of the axis in the opening 2. In practice, the cylindrical wall 6 swells and deforms a lot when driving the axis, thus providing a good holding the watch component 1 on said axis.

Dans le mode de réalisation représenté à la figure 1, les lumières 3 ont chacune un contour fermé. Elles sont oblongues, s'étendent le long du cercle c et ont typiquement la même forme et les mêmes dimensions. L'ensemble constitué de l'ouverture 2 et des lumières 3 représenté à la figure 1 comprend deux axes de symétrie S1, S2. En variante, les lumières 3 peuvent être à contour ouvert, de préférence presque complètement fermé, et/ou être de formes ou de dimensions différentes.In the embodiment shown at figure 1 , the lights 3 each have a closed outline. They are oblong, extend along the circle c and typically have the same shape and dimensions. The set up of aperture 2 and lights 3 shown in FIG. figure 1 comprises two axes of symmetry S 1 , S 2 . Alternatively, the lights 3 may be open contour, preferably almost completely closed, and / or be of different shapes or sizes.

Le composant horloger 1 est typiquement réalisé en un matériau métallique (métal ou alliage) tel que le nickel ou nickel-phosphore, l'acier, le cuivre, le béryllium, le laiton, l'aluminium, le titane, l'or, le platine ou un alliage de cuivre, nickel et zinc tel que le maillechort mais il peut également être réalisé en tout autre matériau possédant un domaine de déformation élastique et un domaine de déformation plastique.The watch component 1 is typically made of a metallic material (metal or alloy) such as nickel or nickel-phosphorus, steel, copper, beryllium, brass, aluminum, titanium, gold, silver platinum or an alloy of copper, nickel and zinc such as nickel silver but it can also be made of any other material having a field of elastic deformation and a plastic deformation field.

La surface interne de l'ouverture 2 du composant horloger 1 représenté à la figure 1 comprend une encoche 5 en face de chacune des zones de liaison 4 ainsi que des portions en arc de cercle 2a de centre O intercalées entre les encoches 5 et s'étendant chacune sur un angle d'environ 115°.The inner surface of the opening 2 of the watch component 1 shown in FIG. figure 1 comprises a notch 5 opposite each of the connecting zones 4 as well as portions of an arc of circle 2a of center O interposed between the notches 5 and each extending over an angle of about 115 °.

Lors du chassage de l'axe dans l'ouverture 2, en l'absence des encoches 5 les zones de liaison 4 seraient soumises à de fortes contraintes car elles ne peuvent pas se déformer radialement. Chaque encoche 5 a pour but de diminuer les contraintes au niveau de la zone de liaison 4 à laquelle elle fait face, atténuant ainsi la formation de bavures.During the driving of the axis in the opening 2, in the absence of the notches 5 the connection areas 4 would be subjected to high stresses because they can not deform radially. Each notch 5 is intended to reduce the stresses at the connecting zone 4 to which it faces, thereby reducing the formation of burrs.

Les portions en arc de cercle 2a peuvent s'étendre sur un angle différent de 115°, cet angle étant toutefois typiquement d'au moins 15°, de préférence d'au moins 25°, de préférence d'au moins 35°, de préférence d'au moins 45°, de préférence d'au moins 55°, de préférence d'au moins 65°, de préférence d'au moins 75°, de préférence d'au moins 85°, de préférence d'au moins 95°, de préférence d'au moins 105°, de préférence encore d'au moins 115°. L'angle sur lequel s'étendent les portions en arc de cercle 2a doit en effet être suffisant pour assurer un bon maintien de l'axe à chasser à l'intérieur de l'ouverture 2 et pour éviter des zones de contact trop étroites entre l'axe et la surface interne de l'ouverture 2, en particulier des contacts ponctuels qui entraînent la formation de bavures lors du chassage. De préférence, chaque portion en arc de cercle 2a s'étend d'une extrémité d'une encoche 5 à une extrémité de l'autre encoche 5.The arcuate portions 2a may extend at an angle other than 115 °, but this angle is typically at least 15 °, preferably at least 25 °, preferably at least 35 °, preferably at least 45 °, preferably at least 55 °, preferably at least 65 °, preferably at least 75 °, preferably at least 85 °, preferably at least 95 °, preferably at least 105 °, more preferably at least 115 °. The angle over which the portions in a circular arc 2a extend must indeed be sufficient to ensure a good retention of the axis to be chased inside the opening 2 and to avoid too close contact areas between the axis and the internal surface of the opening 2, in particular point contacts which cause the formation of burrs when hunting. Preferably, each arcuate portion 2a extends from one end of a notch 5 to one end of the other notch 5.

Chaque encoche 5 a un fond 5a et deux parties de liaison 5b reliant ce fond 5a aux deux portions en arc de cercle 2a qui l'entourent.Each notch 5 has a bottom 5a and two connecting portions 5b connecting the bottom 5a to the two circular arc portions 2a which surround it.

Ce fond 5a est avantageusement en arc de cercle de rayon de courbure plus petit que celui des portions en arc de cercle 2a.This bottom 5a is advantageously in an arc of smaller radius of curvature than that of the arcuate portions 2a.

Chaque partie de liaison 5b est tangente à la portion en arc de cercle 2a correspondante au point de jonction avec cette dernière et a, en tout point, un rayon de courbure plus grand que celui des portions en arc de cercle 2a. Cela évite la création d'arêtes ou de reliefs, bosses ou creux, de faibles rayons de courbure qui entraînent la formation de bavures lors du chassage de l'axe. Les parties de liaison 5b peuvent, par exemple, être constituées de droites auquel cas elles présentent un rayon de courbure infini, ou de courbes, typiquement d'arcs de cercle, présentant une convexité inversée par rapport à celle des portions en arc de cercle 2a.Each connecting portion 5b is tangent to the arcuate portion 2a corresponding to the point of junction with the latter and has, at any point, a radius of curvature greater than that of the arcuate portions 2a. This avoids the creation of ridges or reliefs, bumps or hollows, small radii of curvature which cause the formation of burrs during the driving of the axis. The connecting portions 5b may, for example, consist of straight lines in which case they have an infinite radius of curvature, or curves, typically of circular arcs, having an inverted convexity with respect to that of the arcuate portions 2a. .

Chaque partie de liaison 5b est de préférence également tangente au fond 5a au point de jonction avec ce dernier.Each connecting portion 5b is preferably also tangent to the bottom 5a at the junction with the latter.

La distance radiale entre chaque portion en arc de cercle 2a et la lumière 3 lui faisant face (épaisseur de la paroi cylindrique 6) est de préférence égale à au moins 5%, de préférence à au moins 10%, de préférence à au moins 15%, de préférence à au moins 20%, de préférence à au moins 25%, de préférence encore à au moins 30%, du rayon des portions en arc de cercle 2a. Elle est en outre de préférence égale à au plus 50%, de préférence à au plus 45%, de préférence à au plus 40%, de préférence encore à au plus 35%, du rayon des portions en arc de cercle 2a. De telles proportions permettent d'assurer une élasticité contrôlée de la paroi cylindrique 6 pour qu'elle puisse se déformer élastiquement puis plastiquement lors du chassage d'un axe de rayon supérieur au rayon des portions en arc de cercle 2a dans l'ouverture 2 de manière à assurer une tenue suffisante de l'axe dans l'ouverture 2 sans provoquer de bavures lors de son insertion.The radial distance between each arcuate portion 2a and the lumen 3 facing it (thickness of the cylindrical wall 6) is preferably at least 5%, preferably at least 10%, preferably at least 15%. %, preferably at least 20%, preferably at least 25%, more preferably at least 30%, of the radius of the arcuate portions 2a. It is also preferably at most 50%, preferably at most 45%, preferably at most 40%, more preferably at most 35%, of the radius of the arcuate portions 2a. Such proportions make it possible to ensure a controlled elasticity of the cylindrical wall 6 so that it can deform elastically and then plastically during the driving of an axis of radius greater than the radius of the arcuate portions 2a in the opening 2 of way to ensure a holding sufficient axis in the opening 2 without causing burrs when inserted.

En variante, le composant horloger selon l'invention peut comprendre plus de deux lumières 3. Il peut typiquement en comprendre trois, comme illustré à la figure 2, quatre, comme illustré à la figure 3, ou plus.Alternatively, the watch component according to the invention may comprise more than two lights 3. It can typically comprise three, as illustrated in FIG. figure 2 , four, as illustrated in figure 3 , or more.

Toutefois, le nombre de lumières 3 est de préférence au plus égal à quatre pour permettre aux portions en arc de cercle 2a d'avoir la plus grande étendue possible.However, the number of lights 3 is preferably at most equal to four to allow the arcuate portions 2a to have the largest possible extent.

Les composants horlogers selon des variantes comprenant plus de deux lumières 3 se distinguent également du composant horloger 1 comprenant deux lumières 3 décrit ci-avant par leur nombre de zones de liaison 4, d'encoches 5 et d'axes de symétrie S1, S2, S3, S4.The watch components according to variants comprising more than two lights 3 are also distinguished from the watch component 1 comprising two lights 3 described above by their number of connecting zones 4, notches 5 and axes of symmetry S 1 , S 2 , S 3 , S 4 .

Dans d'autres variantes, le composant horloger 1 selon l'invention peut ne comprendre qu'une lumière 3 s'étendant sur un cercle c' concentrique avec l'ouverture 2, comme illustré à la figure 4. Dans ce cas, le composant 1 comprend typiquement une zone de liaison 4 placée sur le cercle c' concentrique avec l'ouverture 2, entre les extrémités de cette lumière 3, et une encoche 5 faisant face à la zone de liaison 4. Dans l'exemple de la figure 4, la lumière 3 a un contour complètement fermé.In other variants, the watch component 1 according to the invention may comprise only a slot 3 extending over a circle c 'concentric with the opening 2, as illustrated in FIG. figure 4 . In this case, the component 1 typically comprises a connecting zone 4 placed on the circle c 'concentric with the opening 2, between the ends of this light 3, and a notch 5 facing the connection zone 4. In the example of figure 4 light 3 has a completely closed contour.

Chaque encoche 5 est de préférence centrée par rapport à la zone de liaison 4 à laquelle elle fait face.Each notch 5 is preferably centered with respect to the connecting zone 4 to which it faces.

Quelle que soit la variante, l'ensemble constitué de l'ouverture 2 et de la ou des lumières 3 du composant horloger 1 selon l'invention comprend typiquement autant d'axe(s) de symétrie S1, S2, S3, S4 que d'encoche(s) 5.Whatever the variant, the assembly consisting of the opening 2 and the or lights 3 of the watch component 1 according to the invention typically comprises as many axis (s) of symmetry S 1 , S 2 , S 3 , S 4 notch (s) 5.

Les zones de liaison 4 sont des zones de contraintes maximales. Les lumières 3 sont donc avantageusement conçues pour les rendre les plus étroites possible.The connecting zones 4 are areas of maximum stress. The lights 3 are therefore advantageously designed to make them as narrow as possible.

Le composant horloger 1 selon l'invention peut être fabriqué à l'aide de techniques d'usinage conventionnelles, typiquement par croissance LIGA (lithographie, galvanoplastie, moulage), par fraisage, par électroérosion, par des techniques de découpe laser, ou par impression 3D.The watch component 1 according to the invention can be manufactured using conventional machining techniques, typically by LIGA growth. (lithography, electroplating, molding), by milling, by electroerosion, by laser cutting techniques, or by 3D printing.

Le composant horloger 1 ainsi obtenu est apte à recevoir un axe par chassage dans son ouverture 2 et permet la réalisation d'un assemblage présentant un bon maintien et n'engendrant pas la formation de bavures.The clock component 1 thus obtained is able to receive a shaft by driving in its opening 2 and allows the realization of an assembly having good support and does not generate the formation of burrs.

Il apparaît clairement à l'homme du métier que la présente invention n'est en aucun cas limitée aux modes de réalisation présentés ci-dessus et illustrés aux figures.It is clear to those skilled in the art that the present invention is in no way limited to the embodiments presented above and illustrated in the figures.

En effet, il est évident que l'on pourrait appliquer l'invention pour chasser une autre pièce qu'un axe dans l'ouverture 2 du composant horloger 1, pour autant que cette pièce comprenne au moins une partie à section circulaire, par exemple cylindrique ou conique. Cette pièce peut être par exemple un piton pour la fixation de l'extrémité extérieure d'un spiral, cette extrémité extérieure comprenant l'ouverture 2 et les lumières 3.Indeed, it is obvious that one could apply the invention to drive a piece other than an axis in the opening 2 of the watch component 1, as far as this part comprises at least a section with circular section, for example cylindrical or conical. This piece may be for example a peg for fixing the outer end of a hairspring, this outer end comprising the opening 2 and the lights 3.

La figure 5a illustre une roue d'échappement comprenant deux lumières 3 à contours fermés, selon la variante de l'invention représentée à la figure 1. La figure 5b illustre, quant à elle, une aiguille d'horlogerie comprenant une unique lumière 3 à contour ouvert. Le composant 1 selon l'invention pourrait également être par exemple une bascule, une roue d'engrenage, un pignon, une virole, un spiral, un pont, une platine ou tout autre composant horloger destiné à recevoir une partie à section circulaire d'une pièce, axe ou autre, par chassage.The figure 5a illustrates an escape wheel comprising two lights 3 with closed contours, according to the variant of the invention shown in FIG. figure 1 . The figure 5b illustrates, in turn, a timepiece comprising a single light 3 open contour. The component 1 according to the invention could also be for example a rocker, a gear wheel, a pinion, a ferrule, a spiral, a bridge, a plate or any other watch component intended to receive a circular section portion of a part, axis or other, by hunting.

Le composant horloger 1 selon l'invention est typiquement utilisé dans une pièce d'horlogerie telle qu'une montre-bracelet ou une montre de poche.The watch component 1 according to the invention is typically used in a timepiece such as a wristwatch or a pocket watch.

Claims (17)

Composant horloger (1) comprenant une ouverture (2) traversante de centre O dont le contour est fermé et au moins une lumière (3) autour de l'ouverture (2), l'ouverture (2) et l'au moins une lumière (3) définissant entre elles une paroi (6) dont la surface interne définit ledit contour fermé, la paroi (6) étant rattachée au reste du composant par au moins une zone de liaison (4), la paroi (6) étant apte à se déformer radialement élastiquement et plastiquement lorsqu'on chasse une partie à section circulaire d'une pièce dans l'ouverture (2), ladite surface interne comprenant une encoche (5) en face de la ou chacune des zones de liaison (4) et au moins une portion en arc de cercle (2a) de centre O intercalée avec l'au moins une encoche (5), caractérisé en ce que la ou chaque encoche (5) a un fond (5a) et deux parties de liaison (5b), chaque partie de liaison (5b) reliant le fond (5a) à une extrémité de l'au moins une portion en arc de cercle (2a) en étant tangente à la portion en arc de cercle (2a) correspondante au point de jonction avec cette dernière et ayant en tout point un rayon de courbure plus grand que celui de l'au moins une portion en arc de cercle (2a).Watch component (1) comprising a through opening (2) of center O whose contour is closed and at least one lumen (3) around the opening (2), the opening (2) and the at least one light (3) defining between them a wall (6) whose inner surface defines said closed contour, the wall (6) being attached to the remainder of the component by at least one connecting zone (4), the wall (6) being adapted to to deform radially elastically and plastically when a portion of circular section of a part is driven into the opening (2), said internal surface comprising a notch (5) opposite the or each of the connection zones (4) and at least one arcuate portion (2a) of center O interposed with the at least one notch (5), characterized in that the or each notch (5) has a bottom (5a) and two connecting portions (5b ), each connecting portion (5b) connecting the bottom (5a) to one end of the at least one arcuate portion (2a) being tangent to the arcuate portion (2a) corresponding to the point of junction with the latter and having at all points a greater radius of curvature than that of the at least one arcuate portion (2a). Composant horloger (1) selon la revendication 1, caractérisé en ce que le fond (5a) est en arc de cercle de rayon de courbure plus petit que celui de l'au moins une portion en arc de cercle (2a).Watchmaking component (1) according to claim 1, characterized in that the bottom (5a) is in an arc of a radius of curvature smaller than that of the at least one arcuate portion (2a). Composant horloger (1) selon la revendication 1 ou 2, caractérisé en ce que la ou chaque partie de liaison (5b) est une droite ou une courbe présentant une convexité qui est inversée par rapport à celle de l'au moins une portion en arc de cercle (2a).Watch component (1) according to claim 1 or 2, characterized in that the or each connecting portion (5b) is a straight line or a curve having a convexity which is inverted with respect to that of the at least one arcuate portion circle (2a). Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que la ou chaque portion en arc de cercle (2a) s'étend sur un angle d'au moins 15°, de préférence d'au moins 25°, de préférence d'au moins 35°, de préférence d'au moins 45°, de préférence d'au moins 55°, de préférence d'au moins 65°, de préférence d'au moins 75°, de préférence d'au moins 85°, de préférence d'au moins 95°, de préférence d'au moins 105°, de préférence d'au moins 115°.Watch component (1) according to one of the preceding claims, characterized in that the or each arcuate portion (2a) extends over an angle of at least 15 °, preferably at least 25 °, preferably at least 35 °, preferably at least 45 °, preferably at least 55 °, preferably at least 65 °, preferably at least 75 °, preferably at least at least 85 °, preferably at least 95 °, preferably at least 105 °, preferably at least 115 °. Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que la ou chaque lumière (3) est oblongue.Watch component (1) according to one of the preceding claims, characterized in that the or each light (3) is oblong. Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que la distance radiale entre la ou chaque portion en arc de cercle (2a) et la lumière (3) lui faisant face est égale à au moins 5%, de préférence à au moins 10%, de préférence à au moins 15%, de préférence à au moins 20%, de préférence à au moins 25°, de préférence à au moins 30%, du rayon de ladite portion en arc de cercle (2a).Watch component (1) according to one of the preceding claims, characterized in that the radial distance between the or each circular arc portion (2a) and the light (3) facing it is equal to at least 5%, of preferably at least 10%, preferably at least 15%, preferably at least 20%, preferably at least 25 °, preferably at least 30%, of the radius of said arcuate portion (2a). ). Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que la distance radiale entre la ou chaque portion en arc de cercle (2a) et la lumière (3) lui faisant face est égale à au plus 50%, de préférence à au plus 45%, de préférence à au plus 40%, de préférence à au plus 35%, du rayon de ladite portion en arc de cercle (2a).Watch component (1) according to one of the preceding claims, characterized in that the radial distance between the or each arcuate portion (2a) and the light (3) facing it is equal to at most 50%, preferably at most 45%, preferably at most 40%, preferably at most 35%, of the radius of said arcuate portion (2a). Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce qu'il est en un matériau métallique.Watch component (1) according to one of the preceding claims, characterized in that it is made of a metallic material. Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que la ou chaque encoche (5) est centrée par rapport à la zone de liaison (4) lui faisant face.Watch component (1) according to one of the preceding claims, characterized in that the or each notch (5) is centered with respect to the connecting zone (4) facing it. Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que la ou chaque lumière (3) a un contour fermé ou presque complètement fermé.Watch component (1) according to one of the preceding claims, characterized in that the or each light (3) has a closed or almost completely closed contour. Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que l'ensemble constitué de l'ouverture (2) et de ladite au moins une lumière (3) comprend autant d'axe(s) de symétrie (S1, S2, S3, S4) que d'encoche(s) (5).Watch component (1) according to one of the preceding claims, characterized in that the assembly consisting of the opening (2) and said at least one lumen (3) comprises as much axis (s) of symmetry (S 1 , S 2 , S 3 , S 4 ) than notch (s) (5). Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce qu'il comprend plusieurs lumières (3) uniformément réparties autour de l'ouverture (2).Watch component (1) according to one of the preceding claims, characterized in that it comprises a plurality of slots (3) uniformly distributed around the opening (2). Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que le nombre de lumières (3) est égal à deux, trois ou quatre.Watch component (1) according to one of the preceding claims, characterized in that the number of lights (3) is equal to two, three or four. Composant horloger (1) selon la revendication 12 ou 13, caractérisé en ce que toutes les lumières (3) sont de même forme et de mêmes dimensions.Watch component (1) according to claim 12 or 13, characterized in that all the lights (3) are of the same shape and dimensions. Composant horloger (1) selon l'une des revendications précédentes, caractérisé en ce que la ou chaque portion en arc de cercle (2a) s'étend d'une première extrémité d'encoche (5) à une seconde extrémité d'encoche (5).Watch component (1) according to one of the preceding claims, characterized in that the or each arcuate portion (2a) extends from a first notch end (5) to a second notch end ( 5). Ensemble comprenant un composant horloger (1) selon l'une des revendications précédentes et une pièce comprenant une partie à section circulaire, ladite partie à section circulaire étant chassée dans l'ouverture (2) du composant horloger (1).Assembly comprising a watch component (1) according to one of the preceding claims and a part comprising a section section circular, said circular section portion being driven into the opening (2) of the watch component (1). Pièce d'horlogerie comprenant un ensemble selon la revendication précédente.Timepiece comprising an assembly according to the preceding claim.
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JP2022529407A (en) * 2019-04-08 2022-06-22 ニヴァロックス－ファー ソシエテ アノニム Elastic retention member for fixing timekeeping components to various support elements
WO2023079251A1 (en) * 2021-11-05 2023-05-11 Silmach Method for joining a first part to a second part made of silicon
FR3128953A1 (en) * 2021-11-05 2023-05-12 Silmach Method of assembling a first part with a second silicon part

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