EP3401740B1 - Uhrkomponente zum einpressen ohne gratbildung - Google Patents

Uhrkomponente zum einpressen ohne gratbildung Download PDF

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Publication number
EP3401740B1
EP3401740B1 EP17170789.6A EP17170789A EP3401740B1 EP 3401740 B1 EP3401740 B1 EP 3401740B1 EP 17170789 A EP17170789 A EP 17170789A EP 3401740 B1 EP3401740 B1 EP 3401740B1
Authority
EP
European Patent Office
Prior art keywords
timepiece component
circular arc
arc portion
component
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17170789.6A
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English (en)
French (fr)
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EP3401740A1 (de
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
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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/de
Publication of EP3401740A1 publication Critical patent/EP3401740A1/de
Application granted granted Critical
Publication of EP3401740B1 publication Critical patent/EP3401740B1/de
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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 horological component intended to be integrated into a timepiece such as a wristwatch or a pocket watch.
  • the present invention relates more particularly to a horological component intended to be assembled to a part, such as an axle, by driving.
  • Driving in is a snap-in assembly method.
  • the maintenance in position of components assembled in this way is guaranteed by the frictional forces acting between the contact surfaces.
  • the figures 6a, 6b , 6c and 6d show structures of the prior art used for driving.
  • cells 22, aimed at reducing the interaction between the component 20 having a hole and the pin 21 which it receives, can be made in the inner surface of the hole, as illustrated in FIG. figure 6b . However, this does not remove the burrs.
  • the aim of the present invention is to provide a watch component intended to be assembled to a part by driving in which allows good hold while reducing or even eliminating the formation of burrs.
  • the invention provides for this purpose a horological component comprising a through opening of center O, the outline of which is closed and at least one lumen around the opening, the opening and the at least one lumen defining between them a wall of which the internal surface defines said closed contour, the wall being attached to the rest of the component by at least one connecting zone, the wall being able to deform radially elastically and plastically when a part with a circular section of a part is driven out in the opening, said internal surface comprising a notch in front of the or each of the connecting zones and at least one portion in an arc of a center O 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 circular arc portion being tangent to the corresponding circular arc portion at the junction point with this d last and having at all points a radius of curvature greater than that of the at least one portion in the form of an arc of a circle.
  • the invention also proposes an assembly comprising such a timepiece component and a part comprising a part with a circular section, said part with a circular section being driven into the opening of the timepiece component.
  • the invention also proposes a timepiece such as a wristwatch or a pocket watch comprising such an assembly.
  • the watch component according to the invention is able to be assembled by driving in with good hold and without creating a burr to a part comprising a part with a circular section.
  • a watch component 1 comprises a through opening 2 with center O whose contour is closed and two openings 3 uniformly distributed around the opening 2 defining between them two connecting zones 4 located on a circle c concentric with the opening 2.
  • the opening 2 is intended to receive an axis and is capable of deforming radially elastically and plastically when said axis is driven therein.
  • the opening 2 and the slots 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, due to its small thickness, a certain elasticity which allows it to deform. first radially elastically, sufficiently, then radially plastically when driving the pin into the opening 2. In practice, the cylindrical wall 6 swells and deforms a lot when the pin is driven out, thus offering good holding of the watch component 1 on said axis.
  • the lights 3 each have a closed contour. They are oblong, extend along the circle c, and typically have the same shape and dimensions.
  • the set made up opening 2 and lights 3 shown in figure 1 includes two axes of symmetry S 1 , S 2 .
  • the slots 3 may have an 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, platinum or an alloy of copper, nickel and zinc such as nickel silver, but it can also be made from any other material having an elastic deformation domain and a plastic deformation domain.
  • a metallic material such as nickel or nickel-phosphorus, steel, copper, beryllium, brass, aluminum, titanium, gold, platinum or an alloy of copper, nickel and zinc such as nickel silver, but it can also be made from any other material having an elastic deformation domain and a plastic deformation domain.
  • the internal surface of the opening 2 of the watch component 1 shown in figure 1 comprises a notch 5 opposite each of the connecting zones 4 as well as circular arc portions 2a of center O interposed between the notches 5 and each extending over an angle of approximately 115 °.
  • each notch 5 is to reduce the stresses at the level of the connection zone 4 to which it faces, thus reducing the formation of burrs.
  • the arcuate portions 2a may extend over an angle other than 115 °, this angle being however typically at least 15 °, preferably at least 25 °, preferably at least 35 °, of 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 arcuate portions 2a extend must in fact be sufficient to ensure good retention of the axis to be driven out inside the opening 2 and to avoid excessively narrow contact zones between the axis and the internal surface of the opening 2, in particular point contacts which lead to the formation of burrs when driving out.
  • 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 parts 5b connecting this bottom 5a to the two circular arc portions 2a which surround it.
  • This bottom 5a is advantageously in an arc of a circle with a radius of curvature smaller than that of the portions in an arc of a circle 2a.
  • Each connecting part 5b is tangent to the arcuate portion 2a corresponding to the junction point with the latter and has, at all points, a radius of curvature greater than that of the arcuate portions 2a. This prevents the creation of edges or reliefs, bumps or hollows, small radii of curvature which lead to the formation of burrs when driving out the axle.
  • the connecting parts 5b can, for example, consist of straight lines in which case they have an infinite radius of curvature, or of curves, typically of arcs of a circle, having an inverted convexity with respect to that of the arc portions 2a. .
  • Each connecting part 5b is preferably also tangent to the bottom 5a at the point of junction with the latter.
  • the radial distance between each arcuate portion 2a and the slot 3 facing it (thickness of the cylindrical wall 6) is preferably equal to 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 circular arc portions 2a. It is furthermore preferably equal to 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 when driving out an axis with a radius greater than the radius of the arcuate portions 2a in the opening 2 of so as to ensure a sufficient of the axis in the opening 2 without causing burrs during its insertion.
  • the horological component according to the invention can comprise more than two lights 3. It can typically include three, as illustrated in figure 2 , four, as shown 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 greatest 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 connection zones 4, notches 5 and axes of symmetry S 1 , S 2 , S 3 , S 4 .
  • the horological component 1 may only comprise a slot 3 extending over a circle c 'concentric with the opening 2, as illustrated in figure 4 .
  • component 1 typically comprises a connection zone 4 placed on the circle c 'concentric with the opening 2, between the ends of this slot 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 of the slot (s) 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 as notch (s) 5.
  • connection zones 4 are zones 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 watch component 1 thus obtained is able to receive an axis by driving it into its opening 2 and allows the production of an assembly having good retention and not causing the formation of burrs.
  • the invention could be applied to drive out a part other than an axis in the opening 2 of the watch component 1, provided that this part comprises at least one part with a circular section, for example. cylindrical or conical.
  • This part may for example be a eyebolt for fixing the outer end of a hairspring, this outer end comprising the opening 2 and the slots 3.
  • the figure 5a illustrates an escape wheel comprising two openings 3 with closed contours, according to the variant of the invention shown in figure 1 .
  • the figure 5b illustrates, for its part, a clockwork hand comprising a single lumen 3 with an open contour.
  • the component 1 according to the invention could also be, for example, a lever, a gear wheel, a pinion, a ferrule, a balance spring, a bridge, a plate or any other watch component intended to receive a part with a circular section of a part, axis or other, by driving.
  • the horological component 1 according to the invention is typically used in a timepiece such as a wristwatch or a pocket watch.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Claims (17)

  1. Uhrkomponente (1), die eine Durchgangsöffnung (2) mit dem Mittelpunkt O, deren Umriss geschlossen ist, und mindestens einen Schlitz (3) um die Öffnung (2) umfasst, wobei die Öffnung (2) und der mindestens eine Schlitz (3) zwischen einander eine Wand (6) definieren, deren Innenoberfläche den geschlossenen Umriss definiert, wobei die Wand (6) mit dem Rest der Komponente durch mindestens eine Verbindungszone (4) zusammenhängt, wobei die Wand (6) geeignet ist, sich elastisch und plastisch radial zu verformen, wenn ein Stück mit kreisförmigem Querschnitt eines Teils in die Öffnung (2) eingepresst wird, wobei die Innenoberfläche eine Kerbe (5) gegenüber der oder jeder der Verbindungszonen (4) und mindestens einen kreisbogenförmigen Abschnitt (2a) mit dem Mittelpunkt O umfasst, der in die mindestens eine Kerbe (5) eingeschoben ist, dadurch gekennzeichnet, dass die oder jede Kerbe (5) einen Boden (5a) und zwei Verbindungsteile (5b) aufweist, wobei jeder Verbindungsteil (5b) den Boden (5a) mit einem Ende des mindestens einen kreisbogenförmigen Abschnitts (2a) verbindet und dabei tangential zum entsprechenden kreisbogenförmigen Abschnitt (2a) am Verbindungspunkt mit diesem letzteren ist und an jedem Punkt einen Krümmungsradius aufweist, der größer ist als derjenige des mindestens einen kreisbogenförmigen Abschnitts (2a).
  2. Uhrkomponente (1) nach Anspruch 1, dadurch gekennzeichnet, dass der Boden (5a) kreisbogenförmig mit einem Krümmungsradius ist, der kleiner ist als derjenige des mindestens einen kreisbogenförmigen Abschnitts (2a).
  3. Uhrkomponente (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der oder jeder Verbindungsteil (5b) eine Gerade oder eine Kurve ist, die eine Konvexität aufweist, die in Bezug auf diejenige des mindestens einen kreisbogenförmigen Abschnitts (2a) umgekehrt ist.
  4. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der oder jeder kreisbogenförmige Abschnitt (2a) sich über einen Winkel von mindestens 15°, vorzugsweise mindestens 25°, vorzugsweise mindestens 35°, vorzugsweise mindestens 45°, vorzugsweise mindestens 55°, vorzugsweise mindestens 65°, vorzugsweise mindestens 75°, vorzugsweise mindestens 85°, vorzugsweise mindestens 95°, vorzugsweise mindestens 105°, vorzugsweise mindestens 115 °C, erstreckt.
  5. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der oder jeder Schlitz (3) länglich ist.
  6. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der radiale Abstand zwischen dem oder jedem kreisbogenförmigen Abschnitt (2a) und dem ihm gegenüberliegenden Schlitz (3) mindestens gleich 5 %, vorzugsweise mindestens 10 %, vorzugsweise mindestens 15 %, vorzugsweise mindestens 20 %, vorzugsweise mindestens 25 %, vorzugsweise mindestens 30 % des Radius des kreisbogenförmigen Abschnitts (2a) ist.
  7. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der radiale Abstand zwischen dem oder jedem kreisbogenförmigen Abschnitt (2a) und dem ihm gegenüberliegenden Schlitz (3) gleich höchstens 50 %, vorzugsweise höchstens 45 %, vorzugsweise höchstens 40 %, vorzugsweise höchstens 35 % des Radius des kreisbogenförmigen Abschnitts (2a) ist.
  8. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie aus einem Metallmaterial besteht.
  9. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die oder jede Kerbe (5) in Bezug auf die ihr gegenüberliegende Verbindungszone (4) zentriert ist.
  10. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der oder jeder Schlitz (3) einen geschlossenen oder fast vollständig geschlossenen Umriss aufweist.
  11. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Baugruppe, die aus der Öffnung (2) und dem mindestens einen Schlitz (3) besteht, so viele Symmetrieachsen (S1, S2, S3, S4) wie Kerben (5) umfasst.
  12. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie mehrere Schlitze (3) umfasst, die gleichmäßig um die Öffnung (2) verteilt sind.
  13. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anzahl der Schlitze (3) gleich zwei, drei oder vier ist.
  14. Uhrkomponente (1) nach Anspruch 12 oder 13, dadurch gekennzeichnet, dass sämtliche Schlitze (3) die gleiche Form und die gleichen Abmessungen aufweisen.
  15. Uhrkomponente (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der oder jeder kreisbogenförmige Abschnitt (2a) sich von einem ersten Kerbenende (5) zu einem zweiten Kerbenende (5) erstreckt.
  16. Baugruppe, die eine Uhrkomponente (1) nach einem der vorhergehenden Ansprüche und ein Teil umfasst, das ein Stück mit kreisförmigem Querschnitt umfasst, wobei das Stück mit kreisförmigem Querschnitt in die Öffnung (2) der Uhrkomponente (1) eingepresst ist.
  17. Uhr, die eine Baugruppe nach dem vorhergehenden Anspruch umfasst.
EP17170789.6A 2017-05-12 2017-05-12 Uhrkomponente zum einpressen ohne gratbildung Active EP3401740B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17170789.6A EP3401740B1 (de) 2017-05-12 2017-05-12 Uhrkomponente zum einpressen ohne gratbildung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17170789.6A EP3401740B1 (de) 2017-05-12 2017-05-12 Uhrkomponente zum einpressen ohne gratbildung

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EP3401740A1 EP3401740A1 (de) 2018-11-14
EP3401740B1 true EP3401740B1 (de) 2021-03-31

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3722889A1 (de) * 2019-04-08 2020-10-14 Nivarox-FAR S.A. Elastisches halterungsorgan für die befestigung einer uhrkomponente auf verschiedenen halteelementen
FR3128953B1 (fr) * 2021-11-05 2023-11-03 Silmach Procédé d’assemblage d’une première pièce avec une deuxième pièce en silicium
EP4375761A1 (de) * 2022-11-25 2024-05-29 Nivarox-FAR S.A. Elastisches halteelement zur befestigung einer uhrkomponente an einem trägerelement
EP4375760A1 (de) * 2022-11-25 2024-05-29 Nivarox-FAR S.A. Befestigungselement für eine uhr

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012084383A2 (fr) * 2010-12-22 2012-06-28 Eta Sa Manufacture Horlogère Suisse Assemblage d'une pièce ne comportant pas de domaine plastique
EP2595005A1 (de) * 2011-11-16 2013-05-22 Omega SA Einteilige Triebfeder für eine Uhr

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2003523B1 (de) * 2003-09-02 2011-06-22 Patek Philippe SA Genève Spiralrolle für Uhr
ATE517374T1 (de) * 2004-08-31 2011-08-15 Patek Philippe Sa Geneve Spiralrolle für uhren
EP1708045A3 (de) 2005-03-22 2009-01-07 Patek, Philippe SA Befestigung eines Uhrrads an einer Spindel
HK1186057A2 (en) * 2013-01-14 2014-03-07 Master Dynamic Ltd Stress-relief elastic structure of hairspring collet
EP2985659B1 (de) * 2014-03-05 2020-04-29 Nivarox-FAR S.A. Spirale, die mit einer federscheibe gesichert werden muss

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012084383A2 (fr) * 2010-12-22 2012-06-28 Eta Sa Manufacture Horlogère Suisse Assemblage d'une pièce ne comportant pas de domaine plastique
EP2595005A1 (de) * 2011-11-16 2013-05-22 Omega SA Einteilige Triebfeder für eine Uhr

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