EP2595005A1 - Einteilige Triebfeder für eine Uhr - Google Patents

Einteilige Triebfeder für eine Uhr Download PDF

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Publication number
EP2595005A1
EP2595005A1 EP11189420.0A EP11189420A EP2595005A1 EP 2595005 A1 EP2595005 A1 EP 2595005A1 EP 11189420 A EP11189420 A EP 11189420A EP 2595005 A1 EP2595005 A1 EP 2595005A1
Authority
EP
European Patent Office
Prior art keywords
mobile
toothing
cooperate
board
anchor
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.)
Withdrawn
Application number
EP11189420.0A
Other languages
English (en)
French (fr)
Inventor
Pierre Cusin
Frédéric Vaucher
Marco Verardo
Jean-Philippe Thiébaud
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.)
Omega SA
Original Assignee
Omega SA
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 Omega SA filed Critical Omega SA
Priority to EP11189420.0A priority Critical patent/EP2595005A1/de
Priority to DE212012000207.3U priority patent/DE212012000207U1/de
Priority to PCT/EP2012/070695 priority patent/WO2013072158A1/fr
Priority to CN201290000986.7U priority patent/CN204129438U/zh
Publication of EP2595005A1 publication Critical patent/EP2595005A1/de
Withdrawn legal-status Critical Current

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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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • 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 invention relates to a single-piece mobile for example of the coaxial escapement type and more particularly to such a mobile in micro-machinable or electroformable material.
  • the escapement of a mechanical clockwork movement comprises an escape wheel whose regularly spaced teeth are shocked by generally ruby pallets.
  • FIG. 11 An example of a coaxial exhaust system is presented in the document EP 1 045 297 .
  • Such a mechanism as illustrated in figure 11 comprises a mobile formed of a first 1 and a second 11 escape wheels.
  • This second escape wheel 11, also called the impulse pinion, is mounted on the same axis 3.
  • the angular position of the teeth 13 of the second escape wheel 11 is indexed to the angular position of the teeth 8 of the first wheel exhaust 1.
  • the first escape wheel 1 is in the form of a classic Swiss anchor escapement wheel.
  • the second escape wheel 11 also acts as an escape pinion 15 meshing with an intermediate wheel 17, which has the advantage of reducing the height of the mechanism.
  • the large plate 19 of the balance (not shown) carries a plate pin 21 and a pulse pallet 23.
  • the first 21 is intended to drive, in a back-and-forth motion, the anchor 25 via its fork 27 while the second 23 is intended to cooperate with the teeth 8 of the first escape wheel 1.
  • the anchor 25 comprises a pulse pallet 24 which cooperates with the teeth 13 of the second escape wheel 11.
  • the anchor 25 also comprises two other pallets of rest 26, 28 respectively of entry and exit which cooperate with the teeth 8 of the first escape wheel 1.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by providing a mobile such as a coaxial escapement mobile whose alignment problems are reduced.
  • the invention relates to a monoblock coaxial escapement comprising a first toothing formed on the periphery of a first board, the first toothing being arranged to cooperate with an ankle and at least a first pallet series, a second toothing formed on the periphery of a second board and arranged to cooperate with a second series of pallet characterized in that the first and second boards have come in shape to reduce the problems of alignment of one with respect to the other.
  • the invention relates to a coaxial exhaust system for a timepiece comprising an anchor intended to cooperate with a monobloc coaxial escapement mobile according to one of the preceding variants, the first toothing of the mobile being arranged to cooperate with a peg integral with a rocker and being intended to cooperate with a first pallet series of the anchor, the second toothing being intended to cooperate with a second pallet series of the anchor and arranged to form the pinion 'exhaust.
  • the problems of alignment between the first and second wheels are reduced by manufacturing a mobile 100, 100 'grouping said wheels integrally, that is to say in one piece.
  • a mobile 100, 100 'grouping said wheels integrally, that is to say in one piece.
  • the following explanation is made from a coaxial escape wheel.
  • any type of mobile at least two levels is applicable to the present invention.
  • the first pattern forms a toothed wheel 101 corresponding to the first escape wheel 1 of the figure 11 .
  • It comprises a board 103 forming a hub 102, the center of which has an opening 104 and from which the arms 106 leave each end of which forms a tooth 108 corresponding to a tooth 8 of the figure 11 .
  • a board 103 is thus obtained comprising a first toothing at its periphery.
  • the opening 104 comprises elastic fixing means 105 intended to cooperate radially with an axis of the type of that referenced 3 to the figure 11 by elastic deformation in order to rotatably mount the escape wheel 101 and, consequently, the escape wheel 100.
  • These resilient fixing means 105 are formed by slender portions made by recessing a portion of the hub 102. The slender portions make it possible to tighten the axis, that is to say, to make the mobile 100 of the latter, without subjecting the rest of the board 103.
  • the second pattern forms a toothed wheel 111 corresponding to the first escape wheel 11 of the figure 11 . It comprises a board 113 forming a hub 112 whose center comprises an opening 114 and from which the arms 116 leave each end forms a tooth 118 corresponding to a tooth 13 of the figure 11 .
  • a second board 113 is thus obtained comprising a second toothing at its periphery.
  • the first and second planks 103, 113 are shaped to reduce alignment problems with respect to each other. So as visible to the figure 9 , the first and second boards 103, 113 are shaped at their hub 102, 112, at least a portion of the arms 116 not being in line with an arm 106.
  • At least one of the two boards 103, 113 comprises an opening 104, 114 intended to cooperate with an axis in order to rotate said coaxial escapement wheel. So, at the figure 9 , the opening 114 of the board 113 is larger than that 104 of the board 103 which comprises the elastic fastening means 105.
  • the first pattern forms a toothed wheel 101 'corresponding to the first escape wheel 1 of the figure 11 . It comprises a board 103 'forming a hub 102' whose center has an opening 104 'and from which the arms 106' leave each end forming a tooth 108 'corresponding to a tooth 8 of the figure 11 .
  • a board 103 'having a first toothing at its periphery is thus obtained.
  • the opening 104 ' comprises elastic fixing means 105' intended to cooperate radially with an axis of the type from the one referenced 3 to the figure 11 by elastic deformation in order to rotatably mount the escape wheel 101 'and, consequently, the escape wheel 100'.
  • These elastic fixing means 105 ' are formed by slender portions made by recessing a portion of the hub 102'. The slender portions are used to tighten the axis, that is to say, to make the mobile 100 'of the latter, without stressing the rest of the board 103'.
  • the second pattern forms a toothed wheel 111 'corresponding to the first escape wheel 11 of the figure 11 . It comprises a board 113 'forming a hub 112' whose center comprises an opening 114 'and from which the arms 116' leave each end of which forms a tooth 118 'corresponding to a tooth 13 of the figure 11 .
  • a second board 113 'having a second toothing at its periphery is thus obtained.
  • the first and second boards 103 ', 113' are shaped to reduce misalignment with respect to each other. So as visible to the figure 10 , the first and second boards 103 ', 113' are shaped at their hubs 102, 112 and at the arms 116 '. It is also seen that the arms 106 'are radially eccentric arms 116' which prevents them from being in line with each other.
  • An electroformable material may be formed with gold and / or copper and / or silver and / or indium and / or platinum and / or palladium and / or nickel without these compounds being exhaustive. Indeed, other compounds such as phosphorus can be added in a smaller amount.
  • a micro-machinable material can be formed by silicon carbide, crystallized silicon, crystallized alumina or crystallized silica without these compounds being equally exhaustive.
  • Such elastic means may, for example, take the form of those disclosed in the Figures 10A to 10E of the document EP 1 655 642 or those disclosed in the Figures 2 to 5 of the document WO 2007/099068 which documents are incorporated by reference into the present description.
  • each opening 104, 104 ', 114, 114' includes its own fastening means 105, 105 '.
  • the resilient fixing means 105, 105 'could alternatively be replaced by plastic fixing means in particular when using boards 103, 103', 113, 113 'based on a micro-machinable material.
  • plastic fixing means in particular when using boards 103, 103', 113, 113 'based on a micro-machinable material.
  • they could be formed by a washer made of metallic material enabling the mobile 100, 100 'to be driven against said axis by plastic deformation without stressing board 103, 103' and / or 113, 113 '.
  • other plastic fixing means are possible.
  • the method comprises a first a step consisting in providing a substrate 31 comprising an upper layer 33 and a lower layer 35 of micro-machinable materials which are interconnected by an intermediate layer 34.
  • This type of substrate 31 is also known by the abbreviation SOI from the English terms "Silicon On Insulator".
  • This second step thus makes it possible to form one or more first pattern (s) 101, 101 'of the mobile 100, 100' in the upper layer 33.
  • a mask 37 is formed, for example by photolithography, to protect the part of the upper layer 33 that it is desired to keep and, as illustrated by broken lines, the upper part of the substrate 31 is subjected to an anisotropic etching of the type deep reactive ion etching also known by the abbreviation DRIE from the English term "Deep Reactive Ion Etching".
  • DRIE deep reactive ion etching
  • the first pattern 36 having a first level 101, 101 'of at least one escape wheel 100, 100' is obtained.
  • This third step thus makes it possible to form one or more first pattern (es) 111, 111 'of the mobile 100, 100' in the upper layer 35.
  • a mask 39 is formed, for example by photolithography, to protect the part of the lower layer 35 which it is desired to keep and, as illustrated by broken lines, the lower part of the substrate 31 is subjected to an anisotropic etching of the type deep reactive ion etching (DRIE).
  • DRIE deep reactive ion etching
  • the second pattern 38 having at least one second level 111, 111 'is formed integrally with one of the first levels 101, 101' formed in the preceding steps.
  • an additional oxidation step is performed in order to form at least a portion of silicon dioxide at its outer surface for the purpose of make it more mechanically strong.
  • the method comprises a first step of providing a substrate 41 having an electrically conductive upper layer.
  • This layer can be obtained by the deposition of an electrically conductive material on an insulating material or in that the substrate is formed of an electrically conductive material.
  • the main steps of electroforming consist in forming a mold and then filling the mold with a material, for example, using electroplating.
  • This type of electroforming is known by the abbreviation LIGA from the German terms "röntgenLIthographie, Galvanoformung &Abformung".
  • LIGA-type processes depending on whether the multi-level mold is formed between each electroplating or is formed entirely to be filled only after.
  • the technique presented consists in forming each level, that is to say forming a level of the mold and filling it before going to the next level.
  • any type of electroforming, LIGA type or not, capable of forming a mobile unit in at least two distinct levels is possible.
  • the first level 47 of the mold is formed using, for example, a photolithography of a resin as illustrated in FIG. figure 5 .
  • At least one cavity of corresponding shape is formed at the first pattern 101, 101 ', ie at least one first toothing (teeth 108, 108') of the escape wheel 100, 100 'at the periphery of the board 103, 103 '.
  • the first level is then filled by electroplating a metal material 46.
  • the second level 49 is formed using, for example, also a photolithography of a resin. At least one recess of corresponding shape is formed at the second pattern 111, 111 ', ie at least one second toothing (teeth 113, 113') of the escape wheel 100, 100 'at the periphery of the board 113, 113 'and communicating with said at least one cavity of the first level 47.
  • the second level 49 is then filled by electrodeposition of a metal material 48.
  • the present invention is not limited to the illustrated example but is susceptible of various variations and modifications that will occur to those skilled in the art.
  • the toothed wheels 101, 101 ' may comprise a serge such as that of the wheel 1 of the figure 11 without departing from the scope of the present invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gears, Cams (AREA)
EP11189420.0A 2011-11-16 2011-11-16 Einteilige Triebfeder für eine Uhr Withdrawn EP2595005A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP11189420.0A EP2595005A1 (de) 2011-11-16 2011-11-16 Einteilige Triebfeder für eine Uhr
DE212012000207.3U DE212012000207U1 (de) 2011-11-16 2012-10-18 Mobiles Monoblockelement für ein Zeitmessgerät
PCT/EP2012/070695 WO2013072158A1 (fr) 2011-11-16 2012-10-18 Mobile monobloc pour une pièce d'horlogerie
CN201290000986.7U CN204129438U (zh) 2011-11-16 2012-10-18 用于钟表件的整体式运动部件及相应共轴擒纵机构系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11189420.0A EP2595005A1 (de) 2011-11-16 2011-11-16 Einteilige Triebfeder für eine Uhr

Publications (1)

Publication Number Publication Date
EP2595005A1 true EP2595005A1 (de) 2013-05-22

Family

ID=47071265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11189420.0A Withdrawn EP2595005A1 (de) 2011-11-16 2011-11-16 Einteilige Triebfeder für eine Uhr

Country Status (4)

Country Link
EP (1) EP2595005A1 (de)
CN (1) CN204129438U (de)
DE (1) DE212012000207U1 (de)
WO (1) WO2013072158A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3401740B1 (de) * 2017-05-12 2021-03-31 Patek Philippe SA Genève Uhrkomponente zum einpressen ohne gratbildung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3786720B1 (de) * 2019-08-27 2023-12-13 Rolex Sa Uhrkomponente zur aufnahme eines organs durch einpressen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1303652A (fr) * 1961-08-04 1962-09-14 Compteurs Comp D Perfectionnements au mécanisme d'entraînement d'un balancier
EP0018796A2 (de) * 1979-04-30 1980-11-12 George Daniels Uhren, Pendeluhren, Chronometer und Hemmungen dafür
EP1045297A1 (de) 1999-04-12 2000-10-18 Omega SA Koaxiale Ankerhemmung
EP1655642A2 (de) 2003-02-06 2006-05-10 ETA SA Manufacture Horlogère Suisse Spiralfeder der Resonatorunruh und Fabrikationsmethode
WO2007099068A1 (fr) 2006-02-28 2007-09-07 Nivarox-Far S.A. Piece de micro-mecanique avec ouverture de forme pour assemblage sur un axe
US20080008051A1 (en) * 2006-06-23 2008-01-10 Omega S.A. Mobile micromechanical element with shock controlled rotation
EP2261171A1 (de) * 2009-06-09 2010-12-15 Nivarox-FAR S.A. Mikromechanisches Verbundbauteil und sein Herstellungsverfahren

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH696329A5 (fr) * 2001-10-29 2007-04-13 Franck Muller Watchland Sa Mobile d'horlogerie et son procédé de fabrication.
ATE475913T1 (de) * 2007-05-30 2010-08-15 Omega Sa Ankerhemmung für uhren

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1303652A (fr) * 1961-08-04 1962-09-14 Compteurs Comp D Perfectionnements au mécanisme d'entraînement d'un balancier
EP0018796A2 (de) * 1979-04-30 1980-11-12 George Daniels Uhren, Pendeluhren, Chronometer und Hemmungen dafür
EP1045297A1 (de) 1999-04-12 2000-10-18 Omega SA Koaxiale Ankerhemmung
EP1655642A2 (de) 2003-02-06 2006-05-10 ETA SA Manufacture Horlogère Suisse Spiralfeder der Resonatorunruh und Fabrikationsmethode
WO2007099068A1 (fr) 2006-02-28 2007-09-07 Nivarox-Far S.A. Piece de micro-mecanique avec ouverture de forme pour assemblage sur un axe
US20080008051A1 (en) * 2006-06-23 2008-01-10 Omega S.A. Mobile micromechanical element with shock controlled rotation
EP2261171A1 (de) * 2009-06-09 2010-12-15 Nivarox-FAR S.A. Mikromechanisches Verbundbauteil und sein Herstellungsverfahren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3401740B1 (de) * 2017-05-12 2021-03-31 Patek Philippe SA Genève Uhrkomponente zum einpressen ohne gratbildung

Also Published As

Publication number Publication date
CN204129438U (zh) 2015-01-28
WO2013072158A1 (fr) 2013-05-23
DE212012000207U1 (de) 2014-07-18

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