EP2674817B1 - Verfahren zur Herstellung eines Uhrfederhauswelle - Google Patents

Verfahren zur Herstellung eines Uhrfederhauswelle Download PDF

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Publication number
EP2674817B1
EP2674817B1 EP13163792.8A EP13163792A EP2674817B1 EP 2674817 B1 EP2674817 B1 EP 2674817B1 EP 13163792 A EP13163792 A EP 13163792A EP 2674817 B1 EP2674817 B1 EP 2674817B1
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EP
European Patent Office
Prior art keywords
mainspring
drive element
horological
manufacturing
hooking
Prior art date
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Application number
EP13163792.8A
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English (en)
French (fr)
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EP2674817A3 (de
EP2674817A2 (de
Inventor
Laurent Kaelin
Arthur Queval
Marco Rochat
Thierry Conus
Cédric Decorsterd
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ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
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Priority to EP13163792.8A priority Critical patent/EP2674817B1/de
Publication of EP2674817A2 publication Critical patent/EP2674817A2/de
Publication of EP2674817A3 publication Critical patent/EP2674817A3/de
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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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49579—Watch or clock making
    • Y10T29/49581—Watch or clock making having arbor, pinion, or balance

Definitions

  • the invention relates to a method of manufacturing a timepiece barrel shaft.
  • the invention also relates to a clock barrel motor element, comprising at least on the one hand a spiral band barrel spring of a determined type comprising a first internal turn with a defined width and thickness and said first internal turn comprising, for its maintenance on a barrel shaft, at an internal end, means for holding or hooking a defined profile, said motor element comprising, on the other hand, such a barrel shaft.
  • the invention also relates to a timepiece mechanism comprising at least one such motor element.
  • the invention relates to the field of watchmaking, and more particularly the field of motor mechanisms.
  • the increase in capacity of the clockwork motor mechanisms is limited by the volume available at the barrels comprising the energy storage springs. This available volume is delimited by the space available in the movement, therefore by the size of the drum incorporating the spring, and by the geometry of the barrel shaft which must be sized to transmit the maximum torque safely.
  • the invention proposes to improve the capacity of watch barrels, by using barrel shafts with the smallest possible diameters, in order to favor the volume allocated to the spring, or to the springs if there are several, and therefore to increase the power reserve of such barrels.
  • the morphology of the shaft conditions the fixing of the spring on the shaft, the reliability of which must be ensured to avoid any unnecessary dismantling. All other things being equal, in particular with regard to the materials and heat treatments used for the production of the shafts and springs, these are the shape of the shaft, the shape of the spring, but also the type of assembly between the spring and the tree, which condition a perfect behavior of the driving element which they compose together.
  • the reduction, in an important factor, of the shaft diameter compared to conventional manufacturing, further imposes a reduction in the radius of curvature of the first internal turn of the spring, and of those which follow it.
  • the combined design of the shaft, of the associated spring, and their method of attachment or drive must take this constraint into account, to prevent any triangulation or faceting of the spring at its worst internals, which would reduce its duration. life.
  • the invention relates to a method of manufacturing a motor element for a timepiece barrel, comprising at least on the one hand a barrel spring in a spiral band of a determined type comprising a first internal turn with a first width and a first defined thickness and said first internal turn comprising, for its maintenance on a barrel shaft, at an internal end, means for holding or hooking a defined profile
  • said motor element comprising on the other hand a barrel shaft, characterized in that, for the production of said shaft, in a first drawing operation, a drawing bar is drawn so as to produce, around an axis parallel to the drawing direction, an evolving snail profile between a smaller radius and a larger radius, with a projection between the points of said largest radius and smallest radius, said snail profile comprising a support sector for said internal turn, and in that, in a second operation to resume machining or turning the bar drawn around an axis of recovery parallel or coincident with the drawing direction, the complete external contour of said shaft is machined or turned, comprising at least one cylindrical bearing surface for
  • a surface roughness greater than 12 micrometers Ra, is imparted to at least part of said bearing sector, in the form of a groove produced during said drawing operation.
  • a surface roughness greater than 12 micrometers Ra, is imparted to at least part of said bearing sector, in the form of knurling carried out during said resumption of machining operation.
  • the invention relates to a method of manufacturing a motor element 100 of a timepiece barrel, comprising at least on the one hand a barrel spring 10 in spiral band of a determined type comprising a first internal turn 11 with a first width LI and a first thickness EI defined.
  • This first internal turn 11 comprises, for its maintenance on a barrel shaft 1, at an internal end 12, holding or hooking means 13 of defined profile.
  • This profile can take different forms, in particular a stamped or machined eyelet, a fold produced by folding, a rim produced by rolling, a boss, a notch, a projecting element, or a cutout, or even a simple cylindrical profile to ensure good local support of the spring 10 on the shaft 1 at a determined point, with the same radius of curvature, for joining them together by laser welding, welding, soldering, bonding, or the like.
  • This drive element 100 further comprises a barrel shaft 1.
  • a bar is drawn so as to produce, around an axis parallel to the drawing direction, a profile 30 whose section perpendicular to the direction of wire drawing is in evolutionary snail between a smaller radius R1 and a larger radius R2, with a projection 60 between a salient point 61 of larger radius R2 and a re-entering point of smaller radius R1.
  • This projection 60 delimits, around the re-entering point, with a zone of smaller radius R1, a recess 64.
  • This recess 64 is used in different ways depending on the method of fixing the spring 10, as will be explained below.
  • This snail profile 30 comprises, on at least part of its circumference, a support sector for the internal turn 11 of the spring 10.
  • the complete external contour of the shaft 1 is machined or turned. complete comprises at least one cylindrical bearing surface 5, 6, for pivoting guide of the shaft 1.
  • this projection 60 serves as abutment means for the holding or hooking means 13 of the spring 10.
  • this projection 60 serves as additional stop or attachment means for the holding or attachment means 13 of the spring 10.
  • the spring 10 is applied to the shaft 1 so that the internal end 12 of the first turn is positioned in the recess 64, the spring 10 spanning the vicinity of the projecting point of so as to wind on the shaft 1 on the side opposite to the recess 64 with respect to the projection 60.
  • This variant relates to the case where the projection 60 is remanufactured during the second operation of resumption of machining or turning, for constitute additional stop or hooking means for the means for holding or hooking the spring 10.
  • This resumption of machining is also necessary to ensure the passage of the spring 10 over the projection 60 while guaranteeing the best support possible of the spring 10 and limiting the shear stresses to which it is subjected.
  • a groove 44 is machined, of revolution about a parallel DC recovery axis. to the drawing direction, and of width adjusted according to the direction of this DC recovery axis, for maintaining in position, in the direction of the DC recovery axis, of the internal turn 11 of the spring 10, in at least one point of its revolution.
  • This groove 44 intersects the projection 60, between its surfaces of smaller radius R1 and larger radius R2, and, preferably, the groove 44 is substantially tangent to the snail profile 30 in a tangent zone ZT substantially diametrically opposite to the projection 60 relative to the DC return axis of revolution of the groove 44.
  • a bar is drawn so as to produce, projecting or entering relative to a support sector with a snail profile around an axis parallel or coincident with that of the bar, at least one continuous profile 30.
  • the section of this continuous profile 30 corresponds to the projection, along a plane perpendicular to the drawing direction, of additional attachment means to be produced on the shaft 1, of profile complementary to holding means or d 'attachment 13 of a spring 10 of determined type, for attachment of which the corresponding shaft 1 is designed.
  • the drawing by wire gives the surface surfaces a better resistance to fatigue, and ensures a better distribution of the stresses on protruding or inward reliefs, in comparison with machining technologies with tools of small radius, which create concentrations of high stresses. , especially in the inside corners, which weaken the tree.
  • the work hardening resulting from the drawing concerns the entire peripheral surface, and in particular the attachment zones, which thus retain a high surface hardness, and good resistance to wear.
  • this prism in the sense of descriptive geometry, a solid constructed according to generatrices parallel to the same curve, in elevation on the basis of a closed plane profile.
  • this prism is a straight prism, whose generatrices are parallel to a DC recovery axis, and perpendicular to a particular profile, in particular circular, or else in a snail shape.
  • the profile when it is chosen as a snail, is then constructed as a function of the thickness of the first internal turn 11 of a spring 10 with which the shaft 1 is intended to cooperate, and the increase in the snail on its periphery is close to the thickness EI of this first turn 11, and calculated so that, when the first turn 11 of this spring is wound on the shaft 1, it bears in permanence, or at least as much as possible, on the support sector constituted by the lateral surface of this prism with a snail section.
  • the spring 10 overlaps the internal end 12 that comprises the first internal turn 11, it is not deformed by a contact discontinuity between this support surface 2 and the end 12.
  • this second recovery operation is made in bar turning or turning.
  • the manufacture of a shaft 1 is linked to the intended use of this shaft 1 with a barrel spring 10 in spiral band of a determined type, or belonging to a family of springs having common characteristics as regards their interface with the barrel shaft.
  • This interface relates above all to the first internal turn 11, which has an internal free end 12.
  • This first turn 11 has a defined width and a defined thickness. This does not prevent the production of the internal end 12 with another profile, and / and another width, and / and another thickness, as will be seen in the following description.
  • a surface roughness is imparted to at least part of the support sector 2 in the direction drawing, in the form of a groove made during the first drawing operation, or a knurling performed during the second operation of resumption of machining.
  • This roughness allows friction to be maintained between the shaft and the spring, especially if the spring has, at the first internal turn 11, on its face directed towards the axis of the shaft 1, a similar friction surface.
  • a friction surface can, as an alternative to this mechanical processing, result from a surface treatment, from a metallization-type projection, or the like.
  • the invention relates to a motor element 100 of a timepiece barrel, comprising at least on the one hand a barrel spring 10 in a spiral band of a determined type comprising a first internal turn 11 with a defined width and thickness, and the first internal turn 11 comprising, for its maintenance on a barrel shaft 1, at an internal end 12, means for holding or hooking 13 of defined profile.
  • This motor element 10 also comprises a barrel shaft 1 preferably from the drawing of a bar 50 and produced by the process described above.
  • This shaft 1 comprises pivoting guide means 5, 6, around a pivot axis DP, and comprises at least one support sector 2 for the support of such a first internal turn 11 of at least one such barrel spring 10, the shaft 1 comprising complementary attachment means of profile complementary to the profile of the holding or attachment means 13 for its pivoting cooperation with this at least one spring 10.
  • the shaft 1 comprises, internally set back relative to a prism of snail section and parallel to the pivot axis of the shaft 1, comprising the support sector 2, at least one cavity for receiving the holding or hooking means 13 and / and at least part of the first internal turn 11.
  • the drawing direction of the support sector 2 is parallel or coincident with the axis pivoting D, and at least one such cavity is dimensioned for the reception without play, in the direction of the width of the spring 10, of the internal end 12 or of at least part of the first internal turn 11.
  • At least the internal end 12 of the first internal turn 11 of the spring 10 has, on its internal face intended to come to bear on the support sector 2 of the shaft 1, a roughness greater than 12 micrometers Ra.
  • the relative retention between the spring 10 and the shaft 1 can be ensured by removable and complementary means, such as eyelet and hook, or the like.
  • it can be provided by a permanent connection between them, by a fixing process, in particular irreversible, by welding, brazing, gluing, or the like.
  • shafts 1 designed specifically for springs 10 of a given type allow dimensioning of the opposing elements so as to ensure mounting without play of one on the other.
  • at least one such spring 10 is held without play in an annular groove 44 of the shaft 1 around the support sector 2.
  • the internal end 12, or at least part of the first turn 11 is held irreversibly in such a groove 44, by welding or brazing, or even so very economical, by hammering or local crushing at the level of deformation zones, at the level of the spring 10 or / and at the level of the shaft 1.
  • the figure 1 represents a barrel motor element 100 with a shaft 1 with a profile 30 evolving into a snail, carrying a spring 10.
  • the figures 2 and 3 show the configuration specific to this variant, with a bearing surface 3 constituted by the intersection zone between the bearing face 60 and the peripheral groove 14, which defines, on either side thereof and d 'A middle zone 60A, two particularly robust supports 60B and 60C, working in compression, constituting stop means for absorbing the force induced by the winding of the spring 10.
  • the peripheral groove 44 is arranged for the reception of the spring 10, over a decreasing part of its thickness over the winding of the spring: from the total thickness EI of the spring which can be embedded at the level of the bearing face 60 , or at least a significant fraction of this total thickness, for good axial retention of the spring, up to a zone of tangency ZT where the groove 44 is tangent with a peripheral bearing surface 2, and where the spring 10 is completely axially free.
  • the stop surface 13 of the spring 10 takes different forms: winding or folding back on the figure 4 , tee cut on the figure 5 , dovetail cut on the figure 6 , stamped eyelet forming a tongue 16A on the figure 1 where the figure 7 , the latter shown in end view on the figure 8 .
  • FIGS 9 to 12 illustrate an embodiment of a profile well suited to a shaft 1 of very small diameter.
  • This shaft 1 comprises, with the exception of a hook 34 which cooperates with an eyelet of the spring 10, a snail profile 30.
  • the radius R0 which serves as a support for the end 12 of the internal turn 11 of the spring 10 is here of a very small diameter, with a value of 0.26 mm, while the largest radius R2 which corresponds to the maximum radial size of the hook 34, and in support of the second turn of the spring, has a value of 0.42 mm.
  • the radial space allocated to the spring therefore corresponds to a thickness close to 0.08 mm.
  • the factor K which is the ratio between the bung radius, here the radius R0 of the shaft 1, and the thickness of the spring 10, is close to 1.6, which is a particularly low value since it is estimated, for qualities of springs (Nivaflex® or similar) and shafts (steel or stainless steel) usual in watchmaking, that this ratio must be greater than 10 to prevent breakage of the shaft.
  • the variant of the figure 12 shows a first zone which is decomposed between on the one hand a dish 71A, between the marks A and A ', and making a right or obtuse angle at A with the planar bearing face 76, so as to allow combined milling of the surfaces 76 and 71A, and on the other hand the first sector 71 extending between the marks A 'and B, cylindrical, of the minimum radius R0, centered on the axis DC, and whose tangent at B forms a right angle or obtuse with junction area 72.
  • the variant of the figure 13 shows a first zone which is decomposed between on the one hand a dish 71A, between the marks A and A ′, and perpendicular at A to the planar bearing face 76, so as to allow combined milling of the surfaces 76 and 71A, and on the other hand a second plate 71B extending between the marks A 'and B, and forming a right or obtuse angle at B with the planar junction zone 72, so as to allow combined milling of the surfaces 71B and 72.
  • At a distance from the DC axis of the surfaces 71A and 71B is preferably between the values 0.8 R0 and R0.
  • the invention also relates to a timepiece mechanism comprising at least one such motor element 100.
  • This mechanism is a barrel, or a movement incorporating at least one barrel, or a timepiece incorporating at least one movement incorporating at least one barrel .

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Wire Processing (AREA)
  • Metal Extraction Processes (AREA)
  • Ropes Or Cables (AREA)

Claims (13)

  1. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100), umfassend mindestens einerseits eine Federhausfeder (10) aus einem spiralförmigen Band eines bestimmten Typs, das eine erste innere Windung (11) mit einer definierten ersten Breite und einer definierten ersten Dicke aufweist, wobei die erste innere Windung (11) für ihr Halten an einer Federhauswelle (1) an einem inneren Ende (12) Mittel (13) zum Halten oder Einhaken mit einem bestimmten Profil aufweist, und das Antriebselement (10) andererseits eine Federhauswelle (1) umfasst, dadurch gekennzeichnet, dass zum Herstellen der Welle (1) in einem ersten Vorgang des Drahtziehens ein Stab derart gezogen wird, dass um eine Achse parallel zu der Ziehrichtung ein Schneckenprofil (30) gebildet wird, das sich zwischen einem kleineren Radius (R1) und einem größeren Radius (R2) entwickelt und zwischen den Punkten mit größerem Radius (R2) und kleinerem Radius (R1) einen Vorsprung (60) aufweist, wobei das Schneckenprofil (30) ein Auflager (2) für die innere Windung (11) aufweist, und dass in einem zweiten Vorgang der Wiederaufnahme der Bearbeitung oder Drehvorgang des gezogenen Stabs um eine zu der Ziehrichtung parallele Wiederaufnahmeachse (DC) die gesamte Außenkontur der Welle (1), die mindestens einen zylindrischen Bereich (5; 6) für die Schwenkführung der Welle (1) aufweist, bearbeitet oder gedreht wird, wobei der Vorsprung (60) entweder als Anschlagmittel für die Mittel (13) zum Halten oder Einhaken der Feder (10), wenn der Vorsprung (60) zum Rohziehen verwendet wird, oder als Anschlagmittel oder komplementäres Mittel zum Einhaken für die Mittel (13) zum Halten oder Einhaken der Feder (10) dient, wenn der Vorsprung (60) in dem zweiten Vorgang der Bearbeitung oder Zieh-Wiederaufnahme erneut bearbeitet wird, und dass in dem zweiten Vorgang der Wiederaufnahme der Bearbeitung eine um die Wiederaufnahmeachse (DC) parallel zu der Ziehachse rotationssymmetrische Nut (44) mit einer entsprechend der Richtung der Wiederaufnahmeachse (DC) eingestellten Breite bearbeitet wird, um die innere Windung (11) der Feder (10) in der Richtung der Wiederaufnahmeachse (DC) mindestens an einem Punkt ihrer Drehsymmetrie an ihrer Position zu halten, wobei die Nut (44) den Vorsprung (60) zwischen ihren Oberflächen mit kleinerem Radius (R1) und größerem Radius (r2) schneidet und wobei die Nut (44) zu dem Schneckenprofil (30) in einer dem Vorsprung (60) in Bezug auf die rotationssymmetrische Wiederaufnahmeachse (DC) der Nut (44) im Wesentlichen diametral gegenüberliegenden Zone im Wesentlichen tangential ist.
  2. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach Anspruch 1, dadurch gekennzeichnet, dass der Vorsprung (60) mit einem Abstand zwischen dem kleineren Radius (R1) und dem größeren Radius (R2) ausgebildet ist, der größer oder gleich der Dicke der Feder (10) ist.
  3. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach Anspruch 2, dadurch gekennzeichnet, dass die Mittel (13) zum Halten oder Einhaken der Feder (10) mit einem T-förmigen Profil am inneren Ende (12) der ersten inneren Windung (11) hergestellt werden, umfassend einen über einen Steg (19) mit verringerter Breite an dem Körper mit der ersten Breite der Feder (10) befestigten Querbalken (18) und dass für die Breite der Nut (44) eine Breite größer oder gleich jener der verringerten Breite des Stegs (19) gewählt wird.
  4. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach Anspruch 2, dadurch gekennzeichnet, dass die Mittel (13) zum Halten oder Einhaken der Feder (10) mit einem Schwalbenschwanzprofil hergestellt werden, dessen breitester Teil eine Breite größer als jene der Nut (44) aufweist, und dessen schmalster Teil so angeordnet ist, dass er an dem Vorsprung (60) am Eingang der Nut (44) abstützend fixierbar ist.
  5. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach Anspruch 2, dadurch gekennzeichnet, dass nach der Bearbeitung der Nut (44) die Mittel (13) zum Halten oder Einhaken der Feder (10) an dem Vorsprung (60) oder an den Anschlagmitteln oder komplementären Mitteln zum Einhaken, die ausgehend von dem Vorsprung (60) bearbeitet werden, abgestützt werden und dass die Feder (10) in der Nut (44) durch Schweißen und/oder Hartlöten und/oder Hämmern der Welle (1) und/oder der Feder (10) an mindestens einem Punkt unumkehrbar fixiert wird.
  6. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel (13) zum Halten oder Einhaken der Feder (10) mit mindestens einer Erhebung auf Höhe der ersten inneren Windung (11) hergestellt werden, die durch dauerhafte lokale Verformung der Feder (10) hergestellt wird.
  7. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel (13) zum Halten oder Einhaken der Feder (10) mit mindestens einer Lasche (16A) auf Höhe der ersten inneren Windung (11) hergestellt werden, die durch Prägen der Feder (10) hergestellt wird.
  8. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel (13) zum Halten oder Einhaken der Feder (10) in Form eines Antriebsanschlags durch Falzen und/oder Walzen der Feder (10) in Richtung der Wiederaufnahmeachse (DC) an ihrem inneren Ende (12) hergestellt werden.
  9. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder (10) mit einer Öse (16) auf Höhe des inneren Endes (12) der ersten inneren Windung (11) hergestellt wird und dass der Vorsprung (60) in Form eines Hakens (34) nachbearbeitet wird, der zu einem Aufnahmeraum gehört und ein Profil entsprechend jenem der Öse (16) besitzt.
  10. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens einem Teil des Auflagers (2) der Feder (10) während des Ziehvorgangs eine Oberflächenrauigkeit von mehr als 12 Mikrometern Ra in Form einer Riffelung verliehen wird.
  11. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens einen Teil des Auflagers (2) der Feder (10) während des Vorgangs der Wiederaufnahme der Bearbeitung eine Oberflächenrauigkeit von mehr als 12 Mikrometern Ra in Form einer Rändelung verliehen wird.
  12. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Feder (10) in einer ausgleichenden Weise vorgewalzt wird und dass die Dicke der ersten inneren Windung (11) der Feder (10) kleiner ist als die Dicke der folgenden Windungen der Feder (10), die einen konstanten Querschnitt oder einen mit größerem örtlichen Abstand von der ersten inneren Windung (11) zunehmenden Querschnitt aufweisen.
  13. Verfahren zum Herstellen eines Uhrenfederhaus-Antriebselements (100) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass mindestens dem inneren Ende (12) der ersten inneren Windung (11) der Feder (10) auf seiner Innenseite, die dazu bestimmt ist, sich auf einem Auflager (2) der Welle (1) abzustützen, eine Rauigkeit von mehr als 12 Mikrometern Ra verliehen wird.
EP13163792.8A 2012-04-25 2013-04-15 Verfahren zur Herstellung eines Uhrfederhauswelle Active EP2674817B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13163792.8A EP2674817B1 (de) 2012-04-25 2013-04-15 Verfahren zur Herstellung eines Uhrfederhauswelle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12165537.7A EP2657794B1 (de) 2012-04-25 2012-04-25 Federwelle und Zugfeder
EP13163792.8A EP2674817B1 (de) 2012-04-25 2013-04-15 Verfahren zur Herstellung eines Uhrfederhauswelle

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EP2674817A2 EP2674817A2 (de) 2013-12-18
EP2674817A3 EP2674817A3 (de) 2017-05-17
EP2674817B1 true EP2674817B1 (de) 2020-05-27

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EP12165537.7A Active EP2657794B1 (de) 2012-04-25 2012-04-25 Federwelle und Zugfeder
EP13163792.8A Active EP2674817B1 (de) 2012-04-25 2013-04-15 Verfahren zur Herstellung eines Uhrfederhauswelle

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US (1) US9317013B2 (de)
EP (2) EP2657794B1 (de)
JP (1) JP5749760B2 (de)
CN (1) CN103376727B (de)
HK (1) HK1190805A1 (de)
RU (1) RU2609397C2 (de)

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JP5961755B2 (ja) * 2012-06-28 2016-08-02 ニヴァロックス−ファー ソシエテ アノニム 時計用ゼンマイ
EP2977827B1 (de) 2014-07-22 2017-11-15 Montres Breguet SA Federgehäuse einer Uhr mit verbesserter Kraftübertragung
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US20130283615A1 (en) 2013-10-31
CN103376727A (zh) 2013-10-30
CN103376727B (zh) 2016-02-10
JP5749760B2 (ja) 2015-07-15
JP2013228393A (ja) 2013-11-07
EP2657794A1 (de) 2013-10-30
HK1190805A1 (zh) 2014-07-11
US9317013B2 (en) 2016-04-19
EP2657794B1 (de) 2017-02-01
RU2013119128A (ru) 2014-10-27
EP2674817A3 (de) 2017-05-17
RU2609397C2 (ru) 2017-02-01
EP2674817A2 (de) 2013-12-18

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