EP3825779A1 - Bewegliche uhrwerkskomponente mit einem durch reibung gehaltenen element - Google Patents

Bewegliche uhrwerkskomponente mit einem durch reibung gehaltenen element Download PDF

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Publication number
EP3825779A1
EP3825779A1 EP19210647.4A EP19210647A EP3825779A1 EP 3825779 A1 EP3825779 A1 EP 3825779A1 EP 19210647 A EP19210647 A EP 19210647A EP 3825779 A1 EP3825779 A1 EP 3825779A1
Authority
EP
European Patent Office
Prior art keywords
bearing surface
axis
bearing
friction
mobile component
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.)
Pending
Application number
EP19210647.4A
Other languages
English (en)
French (fr)
Inventor
Stéphane BACHMANN
Christophe Cattin
Yves-Alain Cosandier
Laurent Kaelin
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP19210647.4A priority Critical patent/EP3825779A1/de
Priority to US17/027,851 priority patent/US11556092B2/en
Priority to JP2020159479A priority patent/JP7022183B2/ja
Priority to CN202011309951.9A priority patent/CN112824980B/zh
Publication of EP3825779A1 publication Critical patent/EP3825779A1/de
Pending 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • 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
    • G04B13/023—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft allowing rotational slipping when a threshold torque is exceeded
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/02—Back-gearing arrangements between gear train and hands
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/001—Internal gear therefor, e.g. for setting the second hand or for setting several clockworks
    • 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

Definitions

  • the invention relates to a mobile timepiece component with an element held by friction, comprising a first element comprising a first bearing surface around an axis, and a second element comprising a second bearing surface around said axis.
  • the invention also relates to an adjustable display mechanism, comprising at least one such mobile component.
  • the invention also relates to a timepiece movement comprising at least one such adjustable display mechanism, and / or at least one such mobile component.
  • the invention also relates to a timepiece, in particular a watch, comprising at least one such movement, and / or at least one such adjustable display mechanism, and / or such a movable component.
  • the invention relates to setting or adjustment mechanisms for display mechanisms or clockwork movements.
  • the invention proposes to develop a friction mechanism overcoming the drawbacks of the prior art, in particular for the case of small diameters, and so as to allow good hold, and precise adjustment capacities, to facilitate the pairings of the devices. components, to facilitate assembly, while maintaining a moderate manufacturing cost, and eliminating the risk of dissemination of burrs or scratches in the clockwork movement. To do this, the invention produces the friction over a diameter greater than what is known, and this friction occurs in particular between a board and an intermediate component which allows adjustment.
  • the invention relates to a movable timepiece component with an element held by friction, according to claim 1.
  • the invention also relates to an adjustable display mechanism, comprising at least one such mobile component.
  • the invention also relates to a timepiece movement comprising at least one such adjustable display mechanism, and / or at least one such mobile component.
  • the invention also relates to a timepiece, in particular a watch, comprising at least one such movement, and / or at least one such adjustable display mechanism, and / or such a movable component.
  • the invention relates to a movable timepiece component 10 with an element held by friction.
  • This mobile component 10 comprises a first element 1, which comprises a first bearing surface 15, in particular at the level of a journal 11, around an axis D, and a second element 2, which comprises a second bearing surface 25 around the axis D.
  • the second bearing surface 25 of the second element 2 cooperates by friction with a third bearing surface 30 which comprises, around the axis D, a third element 3.
  • This third element 3 is interposed between the first element 1 and the second. element 2, and this third element 3 comprises a fourth bearing surface 35.
  • This fourth bearing surface 35 cooperates by friction with the first bearing surface 15, or else is fixed on the first bearing surface 15.
  • the minimum bearing diameter, with respect to the axis D, of the third bearing 30 is at least double the maximum support diameter of the fourth bearing 35.
  • the fourth bearing surface 35 cooperates by friction with the first bearing surface 15. More particularly, the friction torque between the fourth bearing surface 35 and the first bearing surface 15 is then greater than the friction torque between the second bearing bearing 25 and the third bearing bearing. 30.
  • the fourth bearing surface 35 is driven out on the first bearing surface 15. More particularly, the fourth bearing surface 35 is stopped on the first bearing surface 15 by at least one weld point.
  • the first element 1 comprises a first abutment bearing surface 12, which is arranged to cooperate in axial abutment bearing, in the direction of the axis D, with a second abutment bearing surface 21 that comprises the second element 2.
  • the first element 1 comprises an internal stop bearing surface 13, which is arranged to cooperate in axial stop bearing, in the direction of the axis D, with a complementary internal stop bearing surface 31 that has the third element 3.
  • the third element 3 comprises an outer abutment bearing surface 32, which is arranged to cooperate with a complementary outer abutment bearing surface 23 that the second element comprises, to limit their relative axial travel in the direction of the axis D. More particularly, the space between the outer abutment bearing surface 32 and the complementary outer abutment bearing surface 23 is arranged to allow the introduction of 'a thickness gauge to adjust the value of the clamping between the third element 3 and the second element 2 and therefore the value of the friction exerted by the second element 2 on the third element 3. Thus the friction is adjustable according to the height of hunt.
  • first element 1 comprises at least first drive means 19, and / or the second element 2 comprises at least second drive means 29.
  • the second element 2 comprises a main recess 20 delimiting at least two bearing surfaces 201, 202, each comprising one or two bearing sectors belonging to the second bearing surface 25. More particularly still, this main recess 20 delimits two bearing surfaces. bearing surfaces 201, 202, each comprising two bearing sectors belonging to the second bearing surface 25, and the main recess 20 is cleared between the bearing sectors, for a bearing limited to four points between the first element 1 and the second element 2.
  • the second element 2 exerts a friction on the third element 3 by flexible arms 27, which are arranged between the main recess 20 and secondary recesses 28.
  • the third element 3 comprises at least one insertion surface 36, 37, 38, 39, which is conical or spherical, or the like, for its insertion on the first element 1 or in the second element 2.
  • the fourth bearing 35 and the first bearing 15 are of revolution around the axis D. More particularly still, the fourth bearing 35 and the first bearing 15 are cylindrical around the axis D.
  • the geometric support of the second bearing surface 25 is cylindrical about an axis parallel to the D axis and distant from the D axis.
  • the geometric support of the second bearing surface 25 is conical about an axis parallel to the D axis and distant from the D axis.
  • the geometric support of the third span 30 is of revolution around the axis D.
  • the geometric support of the third span 30 is cylindrical around the axis D.
  • the geometric support of the third bearing 30 is conical around the axis D.
  • the invention also relates to an adjustable display mechanism 50, comprising at least one such mobile component 10.
  • the invention also relates to a timepiece movement 100 comprising at least one such adjustable display mechanism 50, and / or at least one such movable component 10.
  • the invention also relates to a timepiece 1000, in particular a watch, comprising at least one such timepiece movement 100, and / or at least one such adjustable display mechanism 50, and / or at least one such mobile component. 10.
  • the invention is well suited for optimum mounting for small dimensions (clean insertion, limitation of burr and deformation).
  • the figures illustrate the non-limiting case where the second element 2 is a board, which cooperates with a tube constituting the third element 3.
  • the pre-assembly of the board on the tube is carried out by successively carrying out the operations according to the figures 6 and 7 , in this order.
  • the figure 6 shows the pre-assembly of the second element 2 with the third element 3, in friction bearing. Depending on the geometries retained for the second bearing 25 and the third bearing 30, this friction can be adjustable according to the value of the relative axial engagement between the second element 2 and the third element 3.
  • the figure 7 shows the end of the assembly of this mobile component, with an ascending axial arrow showing the assembly of the sub-assembly, consisting of the second element 2 and the third element 3, on the journal 11 of the first element 1.
  • the fourth bearing 35 and the first bearing 15 it is possible or not to have secondary friction between the first element 1 and the third element 3.
  • the invention provides a good response to this management of friction thanks to the addition, between the two components between which it is necessary to perform a relative adjustment (the first element 1 and the second element 2), of an intermediate component, here the third element 3, which can be produced at low cost, for example in the form of a necked part.
  • the functional friction diameter can easily be adapted, or even allow parts to be paired.
  • a third bearing surface 30 with a conical functional surface allows fine adjustment of the friction, with a friction value that varies according to the height of the caster.
  • the invention allows correct management of the friction: low dispersion, possibility of pairing and fine adjustment; adjustable friction depending on the variant.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Friction Gearing (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Electric Clocks (AREA)
EP19210647.4A 2019-11-21 2019-11-21 Bewegliche uhrwerkskomponente mit einem durch reibung gehaltenen element Pending EP3825779A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19210647.4A EP3825779A1 (de) 2019-11-21 2019-11-21 Bewegliche uhrwerkskomponente mit einem durch reibung gehaltenen element
US17/027,851 US11556092B2 (en) 2019-11-21 2020-09-22 Horological mobile component with element maintained by friction
JP2020159479A JP7022183B2 (ja) 2019-11-21 2020-09-24 摩擦によって維持される要素を備える計時器用可動コンポーネント
CN202011309951.9A CN112824980B (zh) 2019-11-21 2020-11-20 具有通过摩擦力保持的元件的钟表移动部件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19210647.4A EP3825779A1 (de) 2019-11-21 2019-11-21 Bewegliche uhrwerkskomponente mit einem durch reibung gehaltenen element

Publications (1)

Publication Number Publication Date
EP3825779A1 true EP3825779A1 (de) 2021-05-26

Family

ID=68762423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19210647.4A Pending EP3825779A1 (de) 2019-11-21 2019-11-21 Bewegliche uhrwerkskomponente mit einem durch reibung gehaltenen element

Country Status (4)

Country Link
US (1) US11556092B2 (de)
EP (1) EP3825779A1 (de)
JP (1) JP7022183B2 (de)
CN (1) CN112824980B (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US417644A (en) * 1889-12-17 Cannon-pinion for watches
US900380A (en) * 1908-02-26 1908-10-06 William Frederick Jost Cannon-pinion.
US2952118A (en) * 1956-06-11 1960-09-13 Hamilton Watch Co Cannon pinion assembly
EP2796940A2 (de) * 2013-04-23 2014-10-29 Rolex Sa Uhrkomponente zur Aufnahme eines Organs durch Einpressen
CH708965A2 (fr) * 2013-12-09 2015-06-15 Montres Breguet Sa Chaussée d'horlogerie et son procédé de lanternage.

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1076605A (en) * 1911-08-28 1913-10-21 Cincinnati Planer Company Pulley.
US1143012A (en) * 1914-06-04 1915-06-15 Valentine O Zahniser Bull-wheel.
US1333131A (en) * 1917-11-08 1920-03-09 Gund Mfg Company Friction-clutch pulley
US3443375A (en) * 1967-08-11 1969-05-13 Gen Time Corp Friction mechanism for clock
US3487633A (en) * 1968-01-23 1970-01-06 Us Time Corp The Dial train friction device
FR2469743A1 (fr) * 1979-11-16 1981-05-22 Suisse Horlogerie Mecanisme de positionnement d'une roue de centre pour piece d'horlogerie
US5155712A (en) * 1992-04-20 1992-10-13 Timex Corporation Wheel and pinion assembly with friction drive/slip coupling for a timepiece
JP2006234437A (ja) * 2005-02-22 2006-09-07 Seiko Instruments Inc 歯車構造体及びこれを備えた時計
DE602006001647D1 (de) * 2006-04-25 2008-08-14 Swatch Group Man Serv Ag Uhr mit einem drehbaren Teil
CH701651B1 (fr) 2007-03-21 2011-02-28 Richemont Int Sa Dispositif de pivotement de la chaussée d'un mouvement d'horlogerie.
EP2230571B1 (de) * 2009-03-17 2014-05-07 Nivarox-FAR S.A. Radialverschlusssystem für Uhrwerkskomponente
EP2230572B1 (de) * 2009-03-17 2012-01-25 Nivarox-FAR S.A. Radialverschlusssystem für Uhrwerkskomponente
JP2011053019A (ja) * 2009-08-31 2011-03-17 Seiko Instruments Inc スリップ歯車構造体及びこれを備えた時計
JP2012198041A (ja) * 2011-03-18 2012-10-18 Seiko Instruments Inc 時計用車のスリップ構造及びこれを用いた時計
EP2595007B1 (de) 2011-11-17 2015-01-07 ETA SA Manufacture Horlogère Suisse Uhrwerksanordnung mit Zentrierung und Befestigung einer Platine auf einem Gehäuserahmen
EP2957963B1 (de) * 2014-06-18 2017-10-25 ETA SA Manufacture Horlogère Suisse Drehteil einer Uhr
CH709920A2 (fr) * 2014-07-24 2016-01-29 Eta Sa Manufacture Horlogère Suisse Ensemble à mobile de freinage d'horlogerie.
JP6537177B2 (ja) * 2014-09-12 2019-07-03 セイコーインスツル株式会社 時計用歯車、アンクル、てんぷ、時計用ムーブメント、及び機械式時計
WO2016143612A1 (ja) * 2015-03-11 2016-09-15 シチズンホールディングス株式会社 時計の動力伝達体及び時計の動力伝達体の製造方法
CH711681A2 (fr) 2015-10-26 2017-04-28 Eta Sa Mft Horlogère Suisse Guidage flexible en pivotement de mobile horloger.
JP6811702B2 (ja) * 2017-12-19 2021-01-13 Nok株式会社 トーショナルダンパ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US417644A (en) * 1889-12-17 Cannon-pinion for watches
US900380A (en) * 1908-02-26 1908-10-06 William Frederick Jost Cannon-pinion.
US2952118A (en) * 1956-06-11 1960-09-13 Hamilton Watch Co Cannon pinion assembly
EP2796940A2 (de) * 2013-04-23 2014-10-29 Rolex Sa Uhrkomponente zur Aufnahme eines Organs durch Einpressen
CH708965A2 (fr) * 2013-12-09 2015-06-15 Montres Breguet Sa Chaussée d'horlogerie et son procédé de lanternage.

Also Published As

Publication number Publication date
CN112824980B (zh) 2022-04-26
US20210157275A1 (en) 2021-05-27
US11556092B2 (en) 2023-01-17
JP7022183B2 (ja) 2022-02-17
CN112824980A (zh) 2021-05-21
JP2021081417A (ja) 2021-05-27

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