EP2394202A2 - Système oscillant mécanique pour montres et élément fonctionnel pour montres - Google Patents

Système oscillant mécanique pour montres et élément fonctionnel pour montres

Info

Publication number
EP2394202A2
EP2394202A2 EP10721923A EP10721923A EP2394202A2 EP 2394202 A2 EP2394202 A2 EP 2394202A2 EP 10721923 A EP10721923 A EP 10721923A EP 10721923 A EP10721923 A EP 10721923A EP 2394202 A2 EP2394202 A2 EP 2394202A2
Authority
EP
European Patent Office
Prior art keywords
silicon
balance
spring
watches
oscillating
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
EP10721923A
Other languages
German (de)
English (en)
Other versions
EP2394202B1 (fr
Inventor
Petra Damasko
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.)
Damasko GmbH
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=44951556&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2394202(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE102009031841A external-priority patent/DE102009031841A1/de
Application filed by Individual filed Critical Individual
Priority to EP16165465.2A priority Critical patent/EP3101484A1/fr
Priority claimed from DE102010006790A external-priority patent/DE102010006790A1/de
Publication of EP2394202A2 publication Critical patent/EP2394202A2/fr
Application granted granted Critical
Publication of EP2394202B1 publication Critical patent/EP2394202B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/066—Manufacture of the spiral spring

Definitions

  • the invention relates to a mechanical vibration system for watches according to the preamble of claim 1 and to functional elements according to the preamble 6, 7, 8, 9 or 11, in particular in the form of coil springs or vibrating bodies or spring holder blocks.
  • the object of the invention is to show a vibration system which avoids these disadvantages.
  • a mechanical vibration system according to claim 1 is formed.
  • Functional elements for watches, preferably for mechanical watches are the subject of claims 6, 7, 8, 9, or 11.
  • Functional elements in the context of the invention are in particular those of a mechanical oscillating system for watches and in particular for mechanical watches or wristwatches, namely in particular the spiral and balance spring, the oscillating body or the balance wheel, the shaft of the oscillating body, elements for fixing the balance spring on the oscillating body or Elements for fastening the Balance spring on the shaft of the oscillating body and on a circuit board of the movement, the so-called double disc on the shaft of the oscillating body for deflecting the armature, the anchor and the escape wheel.
  • Functional elements in the context of the invention are also gears of a movement generally.
  • the invention is based inter alia on the finding that a high accuracy, in particular a temperature-independent accuracy in a particularly simple manner in a mechanical vibration system with a balance spring of a non-metallic crystalline or sintered material with a particle size in the range between 10 and 50 000 nm and with a thermal coefficient of linear expansion less than 8 10 " 7K and / or silicon by using molybdenum (Mo) for the vibrating body and the balance wheel is reached, and in particular even at greatly reduced thickness of a silicon oxide coating of the balance spring.
  • Mo molybdenum
  • Watches especially wristwatches, with a balance spring and a vibrating body, the balance spring of silicon and the oscillating body for temperature compensation
  • this vibration system is executed in a further development of the invention, for example, that the balance spring is provided on their surfaces with a layer of silicon oxide, and / or that the layer of silicon oxide has a layer thickness of maximum 4 ⁇ m, preferably of at most 3 ⁇ n ⁇ , and / or that the vibrating body is a wheel or disk-like vibrating body, and / or that balance spring of polycrystalline silicon or a silicon ceramic, for example
  • Silicon nitride is produced, and / or that at a radially outer region of the vibrating body or a balance wheel forming this balance wheel adjusting elements for adjusting the dynamic moment of inertia of the vibrating body with respect to its
  • Oscillating axis are provided, and / or that the centering elements each of at least one about an axis parallel or substantially parallel to the swing axis rotatable or pivotable on
  • the oscillating body or balance wheel for example, designed so that the adjusting elements are held by clipping or latching on the oscillating body or on the inside of the balance wheel or a ring of the balance wheel, and / or that the oscillating body made of molybdenum or a molybdenum in made of a high proportion alloy, wherein the aforementioned features can be used individually or in any combination.
  • the spiral spring body is provided in the region of its outer end with a multi-waved section, wherein the helical spring is embodied in a further development of the invention such that it consists of silicon, and / or that they are made of polycrystalline silicon or a silicon ceramic, eg is made of silicon nitride, wherein the aforementioned features of the coil spring each individually or in any
  • the oscillating body or the balance wheel for a mechanical oscillating system for watches, in particular wristwatches are attached to a radially outer region of the oscillating body
  • the functional element is designed in a further development of the invention, for example, that it is made of a non-metallic material containing a crystalline or sintered material with a grain size in Range between 10 and 50 000 nm and / or with a thermal expansion coefficient of less than 8 10 " 7K and / or a sintered material based on silicon or a silicon sintered material and / or that in elongated grain formation with egg grain width in the range between 10 and 100 nm and a grain length in the range between 2 and 50 / vm, preferably between 5 and 50 microns, and / or that the non-metallic material is a material based on silicon or a
  • Silicon sintered material is, and / or that when formed as a spiral spring, the winding cross section is 0.001 mm 2 to 0.01 mm 2 or 0.001 mm 2 to 0.03 mm 2 or 0.001 mm 2 to 0.3 mm 2 , and / or it forms at least one bearing and / or sliding and / or mounting surface on which the surface of the functional element consists of an inner layer
  • Intermediate layer of titanium nitride and / or titanium carbide and / or tungsten carbide exist, and / or that it as a spiral or balance spring, as a vibrating body, as a shaft, in particular
  • Balance shaft as an anchor, as an escape wheel, as a double disc on the balance shaft or as a gear, wherein the aforementioned features of the functional element can be used individually or in any combination.
  • FIG. 1 in a simplified functional representation of the essential elements of a mechanical vibration system of a wristwatch;
  • FIG. 2 is a plan view of the spiral spring of the oscillating system of FIG. 1;
  • FIG. 3 is a partial perspective view of a mechanical oscillating system for watches, in particular wristwatches according to a further embodiment
  • Fig. 4 in an individual representation and in plan view of the oscillating and balance wheel of the
  • FIG. 5 in a perspective view and in plan view of the centering of the
  • FIG. 7 shows a simplified representation of a section through a multilayer coating on a functional element made of silicon.
  • the vibration system generally designated 1 in the figure consists of the spiral spring 2 and of the oscillating or balance wheel 3.
  • the balance spring 2 is made of silicon, preferably of polycrystalline silicon.
  • the preparation of the balance spring 2 is carried out, for example, from a non-metallic crystalline or sintered material having a particle size in the range between 10 and 50 000 nm, preferably between 10 - 10 000nm, wherein Columnen-growth, the grain size, for example, a length of about 5 - 50 microns and has a width of 10 - 10OOnm.
  • the non-metallic crystalline or sintered material has a thermal coefficient of linear expansion smaller than 8 ⁇ 10 6 ZK, or the balance spring 2 is using a wafer made of this material or silicon, for example by cutting and / or etching (masking and etching technique) is produced, for example, by epitaxial deposition of silicon
  • the cross-sectional area of the spring coil is, for example, 0.001-0.01 mm 2 .
  • the balance spring 2 is provided on the outer surface of its windings with an example thermally generated layer of silicon oxide. This layer has a maximum thickness of 4 ⁇ m, preferably of not more than 3 ⁇ m or smaller.
  • the combination of silicon (for the balance spring 2) and molybdenum (for the balance wheel 3) results in an optimally temperature-compensated mechanical vibration system, ie a mechanical vibration system whose gear or frequency accuracy is, in particular, independent of changes in temperature.
  • Figure 2 shows the coil spring 2 again in a single representation.
  • a special feature of this coil spring is that it is designed in the area of its outer spring end at 2.1 multiple wave-shaped. This area results in an improved, very uniform vibration behavior of the spiral spring 2.
  • the spiral spring 2 with the section 2.1 is also advantageously used for oscillating systems of watches, in particular wristwatches, in which the oscillating mass is designed differently than described above.
  • FIG. 3 shows a perspective view of a vibration system 1 a with the coil spring 2a and the oscillating or balance wheel 3a.
  • the balance spring 2a and the balance wheel 3a are made of the same material and / or in the same manner as described above for the coil spring 2 and the balance wheel 3.
  • the balance wheel 3a is designed speichenradartig, consisting of an outer ring 4, four of the ring 4 radially inwardly extending spokes 5 and a central scar section 6, which has the opening 6.1 for attachment of the balance shaft and integral with the spokes 5 and the outer ring 4 is made.
  • the outer ring 4 is formed on its inside with a circumferential groove 7 and between the spokes 5 each having a fork-like attachment portion 8.
  • an adjusting element 9 is provided, which is made in one piece of a non-magnetic metallic material, such as molybdenum or a corrosion-resistant steel.
  • the attachment portion 8 are each provided below the groove 7.
  • the adjusting elements 9 consist of a circular-disk-shaped body 10 with a pin 11 which is arranged coaxially with the axis of this body and projecting beyond an end face of the centering element 9 with a circular-cylindrical outer surface. Furthermore, in the body 10, a continuous, ie open at both end faces of the disc-shaped body 10 and arcuately curved recess 12 is provided, which extends over an angular range of slightly less than 180 ° about the axis of the centering 9, in such a way that the centering 9 or whose body 10 has a continuous edge at its periphery, but the center of mass of the centering element 9 is offset radially to the axis of the centering element 9.
  • the body 10 is further provided with a slot-shaped, radially or approximately radially to the axis of the centering extending recess 13, which forms the attack or actuating surface for a setting workpiece, for example, a screwdriver.
  • each centering element is rotatably provided on a mounting portion 8 about an axis parallel to the axis of the balance wheel 3a, with a certain stiffness in that the respective pin 1 1 is held by snapping or latching on the fork-like mounting portion 8 and each Adjusting element 9 on the circumference with his disk-like body 10 extends into the groove 7, where it is axially secured and bears radially against the bottom of the groove.
  • each adjusting element 9 is pushed with its pin 1 1 radially on the associated fork-like mounting portion 8.
  • the center of mass of each adjusting element u.a. displaced radially to the axis of the balance wheel 3a and thereby set the dynamic moment of inertia in the desired manner.
  • the balance spring 2a is fastened with the inner end in a suitable manner to the balance shaft, not shown.
  • the outer end of the coil spring 2a is held on a spring holder block or block 14 of a spring holder 15 which is adjustable by pivoting about the axis of the balance wheel 3a.
  • the spring holder block 14 made from a metallic material is a section 14.1, with which it can be fastened in an opening 16 of the spring holder 15 by clipping or latching, as well as with a section 14.2 with two forked or clamped arms 17 and 18 executed, which form between them a clamping gap 19, in which the coil spring 2a can be fixed by clamping.
  • the clamping gap 19 is open to the underside facing away from the portion 14.1 as well as to two opposite end faces of the spring holder block 14 and on the side facing the portion 14.1 bounded by a surface 20.1.
  • the spring holder block 14 In the assembled state, the spring holder block 14 is oriented with its longitudinal extent parallel to the axis of the balance wheel 3a.
  • the coil spring 2a is already held on the spring holder 15 mounted on the spring holder block 14 such that even a change and adjustment of the effective spring length, which is required for the frequency of the mechanical vibration system by moving the coil spring 2a relative to the spring holder block 14 while maintaining the clamp connection is possible.
  • the connection between the coil spring 2a and the spring holder block 14 is fixed, again using a suitable adhesive or fixing varnish.
  • the adjusting elements 9, but in particular the respective spring holder block 14 are preferably manufactured as so-called LIGA parts with the LIGA method known to those skilled in the art, which allows the production of metallic moldings with very small dimensions by the process steps lithography, electroplating and impression.
  • FIG. 7 schematically shows the construction of a bearing and / or conduction and / or mounting surface of a functional element 21, which consists of silicon, preferably of polycrystalline silicon, for example of epitaxially deposited polycrystalline silicon.
  • the bearing and / or sliding and / or mounting surface forming surface 22 of the functional element 21 is formed by a multilayer coating, at least consisting of a directly adjoining the silicon material of the functional element 21 coating 23 of silicon oxide, for example by thermal Oxidation or produced in any other suitable manner.
  • the coating 23 is followed by a metallic intermediate layer 24, which preferably consists of titanium nitride and / or titanium carbide and / or tungsten carbide and is applied, for example, in a PVD coating process.
  • the intermediate layer 24 may in turn be designed in a multi-layered manner, specifically in several individual layers, for example, of the abovementioned materials.
  • the intermediate layer 24 is followed by a coating 25 forming the actual outer surface, which is designed as a DLC coating and produced for example by CVD deposition.
  • the invention is based on the finding that improved adhesion of the layer 25 to the layer 23 is achieved by the metallic intermediate layer 24, so that the layer 25 is effectively prevented from flaking or loosening by the functional element 21 during assembly and during use of a clock , This is true not only for storage and sliding surfaces, but especially for mounting surfaces and especially for those with or on which a clamping attachment is done, such as a clamping attachment of the spiral or balance spring or the oscillating body to a shaft, etc.

Landscapes

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

Abstract

Système oscillant mécanique pour montres, notamment pour montres-bracelets, comportant un ressort de balancier et un corps oscillant.
EP10721923.0A 2009-02-06 2010-02-04 Système oscillant mécanique pour montres et élément fonctionnel pour montres Revoked EP2394202B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16165465.2A EP3101484A1 (fr) 2009-02-06 2010-02-04 Systeme oscillant mecanique pour montres et procede de fabrication d'un systeme oscillant mecanique pour montres

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
DE102009007973 2009-02-06
DE102009013741 2009-03-20
DE102009025645 2009-06-17
DE102009030539 2009-06-24
DE102009031841A DE102009031841A1 (de) 2009-02-06 2009-07-03 Mechanisches Schwingsystem für Uhren, Spiralfeder, Schwingkörper sowie Federhalterklotz für ein Schwingsystem
DE102009050045 2009-09-24
DE102009048580 2009-10-07
DE102009060024 2009-12-21
DE102010004025 2010-01-04
DE102010005257 2010-01-20
PCT/DE2010/000126 WO2010088891A2 (fr) 2009-02-06 2010-02-04 Système oscillant mécanique pour montres et élément fonctionnel pour montres
DE102010006790A DE102010006790A1 (de) 2009-12-21 2010-02-04 Mechanisches Schwingsystem für Uhren sowie Funktionselement für Uhren

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP16165465.2A Division-Into EP3101484A1 (fr) 2009-02-06 2010-02-04 Systeme oscillant mecanique pour montres et procede de fabrication d'un systeme oscillant mecanique pour montres
EP16165465.2A Division EP3101484A1 (fr) 2009-02-06 2010-02-04 Systeme oscillant mecanique pour montres et procede de fabrication d'un systeme oscillant mecanique pour montres

Publications (2)

Publication Number Publication Date
EP2394202A2 true EP2394202A2 (fr) 2011-12-14
EP2394202B1 EP2394202B1 (fr) 2016-09-07

Family

ID=44951556

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16165465.2A Withdrawn EP3101484A1 (fr) 2009-02-06 2010-02-04 Systeme oscillant mecanique pour montres et procede de fabrication d'un systeme oscillant mecanique pour montres
EP10721923.0A Revoked EP2394202B1 (fr) 2009-02-06 2010-02-04 Système oscillant mécanique pour montres et élément fonctionnel pour montres

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP16165465.2A Withdrawn EP3101484A1 (fr) 2009-02-06 2010-02-04 Systeme oscillant mecanique pour montres et procede de fabrication d'un systeme oscillant mecanique pour montres

Country Status (4)

Country Link
US (1) US20110292770A1 (fr)
EP (2) EP3101484A1 (fr)
DE (1) DE202010018420U1 (fr)
WO (1) WO2010088891A2 (fr)

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Publication number Priority date Publication date Assignee Title
EP3101484A1 (fr) 2009-02-06 2016-12-07 DAMASKO GmbH Systeme oscillant mecanique pour montres et procede de fabrication d'un systeme oscillant mecanique pour montres
EP2437126B1 (fr) * 2010-10-04 2019-03-27 Rolex Sa Organe regulateur balancier-spiral
EP2474871B1 (fr) * 2011-01-06 2017-05-10 ETA SA Manufacture Horlogère Suisse Clé de raquette pour balancier spiral
EP2511229B1 (fr) * 2011-04-12 2017-03-08 GFD Gesellschaft für Diamantprodukte mbH Composant micromécanique doté de flancs renforcés
EP2520983A1 (fr) * 2011-05-03 2012-11-07 Nivarox-FAR S.A. Barillet comportant des moyens élastiques d'accumulation d'énergie
CH704924B1 (de) 2011-05-13 2015-05-29 Bucherer Ag Unruh für eine Uhr sowie Uhr.
EP2795409B1 (fr) * 2011-12-22 2018-08-29 The Swatch Group Research and Development Ltd. Procédé d'amélioration du pivotement d'un mobile
WO2014006229A1 (fr) * 2012-07-06 2014-01-09 Rolex Sa Procédé de traitement d'une surface d'un composant horloger et composant horloger obtenu par un tel procédé
JP6209220B2 (ja) * 2012-11-16 2017-10-04 ニヴァロックス−ファー ソシエテ アノニム 気候変動に対する感受性が低減された共振器
EP2757423B1 (fr) 2013-01-17 2018-07-11 Omega SA Pièce pour mouvement d'horlogerie
CH707503A2 (fr) * 2013-01-17 2014-07-31 Omega Sa Axe de pivotement pour mouvement horloger.
CH707811A2 (fr) 2013-03-19 2014-09-30 Nivarox Sa Composant monobloc indémontable d'horlogerie.
CH707808B1 (fr) * 2013-03-19 2017-05-15 Nivarox Far Sa Cassette de mécanisme d'horlogerie.
EP2781968A1 (fr) * 2013-03-19 2014-09-24 Nivarox-FAR S.A. Résonateur moins sensible aux variations climatiques
CH708429A1 (fr) * 2013-08-19 2015-02-27 Manuf Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A Spiral pour organe réglant de montre mécanique, organe régulateur muni d'un tel spiral, et procédé de réalisation d'un tel spiral.
CN106104393A (zh) * 2014-01-29 2016-11-09 卡地亚国际股份公司 由在其组成中包含硅的陶瓷制成的热补偿的游丝和用于调节游丝的方法
EP3002635B8 (fr) * 2014-09-29 2019-05-22 Richemont International SA Procédé de fabrication d'un élément ressort pour mouvement horloger ou autre instrument de précision
EP3667433B1 (fr) * 2018-12-12 2023-02-01 Nivarox-FAR S.A. Spiral et son procede de fabrication

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Also Published As

Publication number Publication date
DE202010018420U1 (de) 2016-06-22
EP2394202B1 (fr) 2016-09-07
EP3101484A1 (fr) 2016-12-07
US20110292770A1 (en) 2011-12-01
WO2010088891A3 (fr) 2010-11-25
WO2010088891A2 (fr) 2010-08-12

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