EP3457221A2 - Oszillator einer uhr mit flexiblem zapfen - Google Patents

Oszillator einer uhr mit flexiblem zapfen Download PDF

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Publication number
EP3457221A2
EP3457221A2 EP18194710.2A EP18194710A EP3457221A2 EP 3457221 A2 EP3457221 A2 EP 3457221A2 EP 18194710 A EP18194710 A EP 18194710A EP 3457221 A2 EP3457221 A2 EP 3457221A2
Authority
EP
European Patent Office
Prior art keywords
rigid
elastic blade
parts
component according
monolithic
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
EP18194710.2A
Other languages
English (en)
French (fr)
Other versions
EP3457221A3 (de
EP3457221B1 (de
Inventor
Anthony Krüttli
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
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Publication of EP3457221A2 publication Critical patent/EP3457221A2/de
Publication of EP3457221A3 publication Critical patent/EP3457221A3/de
Application granted granted Critical
Publication of EP3457221B1 publication Critical patent/EP3457221B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/045—Oscillators acting by spring tension with oscillating blade springs
    • 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
    • G04B31/02—Shock-damping bearings

Definitions

  • the present invention relates to a watch component with a flexible pivot.
  • the first and second monolithic pieces are flat and superimposed.
  • the first and third rigid portions form a central or inner portion of the watch component and the second and fourth rigid portions form a peripheral portion of the watch component.
  • Said peripheral portion may completely or nearly completely surround the central or inner portion.
  • the first and third rigid parts may form a fixing portion of the watch component, for mounting the watch component on a support.
  • the first rigid portion extends at least partially outside the plane of the second rigid portion to allow its attachment to a support without contact between the support and the second and fourth parts.
  • the assembly formed by the second and fourth rigid parts is arranged to abut against the assembly formed by the first and third rigid parts during a rotation of the second and fourth rigid parts relative to the first and third rigid parts. , in order to limit the deformation of said at least one first elastic blade and said at least one second elastic blade and prevent their elastic limit can be exceeded.
  • the watch component according to the invention may comprise at least one guiding or fastening element integral with the second and fourth rigid parts and intended to guide or fix an additional element.
  • This guiding or fixing element may be a bearing intended to guide the rotation of a movable element about an axis distinct from the virtual axis of rotation and substantially parallel thereto.
  • the at least one first elastic blade and the at least one second elastic blade are located entirely in different planes substantially perpendicular to the virtual axis of rotation.
  • At least a portion of said at least one first elastic blade is in the same plane, substantially perpendicular to the virtual axis of rotation, at least a portion of said at least one second elastic blade.
  • the watch component according to the invention may comprise a third monolithic piece defining fifth and sixth rigid parts respectively integral with the first and second rigid parts and connected by at least one third elastic blade, said at least one third elastic blade defining with said at least one first elastic blade and said at least one second blade elastic the virtual axis of rotation.
  • the watch component according to the invention may further comprise a fourth monolithic piece defining seventh and eighth rigid parts secured respectively to the first and second rigid parts and connected by at least a fourth elastic blade, said at least one third elastic blade and said at least one fourth elastic blade intersecting without contact and defining with said at least one first elastic blade and said at least one second elastic blade the virtual axis of rotation.
  • the watch component is, or includes, a flip-flop, such as a clutch rocker carrying a clutch wheel, a lever, an oscillator or an escapement anchor.
  • a flip-flop such as a clutch rocker carrying a clutch wheel, a lever, an oscillator or an escapement anchor.
  • a flexible pivoting watch component 1 comprises a central fixing portion 2 and a mobile peripheral portion 3, both rigid.
  • the mobile peripheral portion 3 surrounds the central fixing portion 2.
  • the central fixing portion 2 serves to mount the watch component 1 on a support 4 (shown schematically), which support may be fixed (for example the plate of a movement) or mobile.
  • the mobile peripheral portion 3 is pivotable relative to the central fixing portion 2 and the support 4 about a virtual axis of rotation 5 defined by an elastic member.
  • the watch component 1 is a rocker, more specifically a clutch rocker carrying a clutch wheel (not shown).
  • the clutch wheel pivots about an axis 6 which is parallel to the virtual axis of rotation 5 but distinct from the latter.
  • This clutch rocker is intended to be used, for example, in a chronograph mechanism.
  • the elastic member defining the virtual axis of rotation 5 comprises two elastic strips 7, 8 called “separate crossed". These two blades 7, 8 intersect in two different planes parallel to the plane of the component 1 (that is to say on the plane of the figure 1 ). Contrary to so-called “non-separated cross-slide” systems, the two blades 7, 8 do not physically cross each other. This arrangement of the blades 7, 8 decreases by a factor of 4 the stiffness of the elastic member relative to non-separated cross-slide systems.
  • the virtual axis of rotation substantially corresponds to the straight line which is perpendicular to the plane of the component 1 and which passes through the two blades 7, 8. This virtual axis of rotation is not completely fixed during the movements of the mobile peripheral part. 3.
  • the mobile peripheral portion 3 can pivot around the virtual axis of rotation 5 without friction and without play.
  • the height of the blades 7, 8 is large enough so that the stiffness of the elastic member is very high perpendicular to the plane of the component 1.
  • component 1 does not tilt under the effect of the weight of the clutch wheel.
  • the watch component 1 comprises two monolithic parts 9, 10 assembled to one another.
  • the parts 9, 10 are flat and superimposed in the direction of the virtual axis of rotation 5.
  • the lower part 9 (cf. Figures 4 to 6 ) comprises a central portion 11 and a peripheral portion 12 connected to each other by the elastic blade 7.
  • the central portion 11 is lower than the peripheral portion 12, or comprises a portion which extends below the plane of the peripheral portion 12, to be able to rest on the support 4 leaving the peripheral portion 12 without contact with the support 4.
  • the support 4 may comprise an elevated part on which the central part 11 of the lower part 9 can rest to avoid contact between the peripheral part 12 and said support 4.
  • the upper part 10 (cf.
  • Figures 7 to 9 comprises a central portion 13 and a peripheral portion 14 connected to each other by the elastic blade 8.
  • the central portion 13 has a greater thickness than the peripheral portion 14, or comprises a portion which extends beyond below the plane of the peripheral portion 14, to engage in the central opening of the peripheral portion 12 and against the central portion 11 of the lower part 9.
  • the central portion 11 and the peripheral portion 12 of the lower part 9 have the same shape as the central portion 13 and the peripheral portion 14 of the upper piece 10, respectively.
  • the lower and upper parts 9, 10 can thus be pressed against each other to form the component 1.
  • the lower part 9, however, has an extension 15 which forms a bearing receiving a stone 16 in which pivots a first pivot of the clutch wheel shaft. Alternatively, this extension 15 which receives the stone 16 could be part of the upper part 10.
  • the peripheral portions 12, 14 each define two lugs 17, 18 each pierced with a hole.
  • the hole in each ear 17 of the lower piece 9 is aligned with the corresponding ear hole 18 of the upper piece 10 but has a smaller diameter.
  • Tubes 19 are driven into the holes of the lugs 17 of the lower part 9 and are received in the holes of the lugs 18 of the upper part 10 so as to position and secure in rotation the two parts 9, 10 relative to each other. the other.
  • the tubes 19 are threaded to allow the screwing of a bridge on the component 1, bridge which comprises the bearing for the second pivot of the shaft of the clutch wheel.
  • the central portion 11 of the lower piece 9 is pierced with holes 20 which are aligned with corresponding holes 21 of the part 13 of the upper part 10.
  • holes 20, 21 allow pins fixed to the support 4 to pass through the lower and upper parts 9, 10 to position the component 1 on the support 4.
  • Another hole 22 of the lower part 9 aligned with a hole 23 of the upper part 10 allows a screw to pass through the lower and upper parts 9, 10. This screw is screwed into the support 4 and plates the component 1 against said support 4.
  • the lower and upper parts 9, 10 are fixed to each other axially by being fastened together to the support 4.
  • the parts 9, 10 could be directly attached to each other , for example by gluing or welding, before being mounted on the support 4.
  • the lower and upper parts 9, 10 have their respective central parts 11, 13 which are integral to form together the central fixing portion 2 of the component 1 and their peripheral parts 12, 14 which are integral to form together the peripheral part mobile 3 of component 1.
  • the empty space 24 between the central fixing portion 2 and the surrounding mobile peripheral part 3 has a width l which allows rotation of the mobile peripheral portion 3 with respect to the central fixing portion 2 within a certain range. . From a certain amplitude of rotation, in one direction or in the other, the mobile peripheral portion 3 abuts against the central fixing portion 2 to limit the deformation of the elastic strips 7, 8.
  • the width l is chosen sufficiently small so that the elastic limit of the blades 7, 8 can not be exceeded. Thus, the blades 7, 8 can not deform plastically or break.
  • the lower and upper parts 9, 10 are typically made of metal, for example steel or titanium, or a metal alloy such as a nickel-based alloy, and can be obtained by wire machining, for example. They can also be produced by electroforming, for example according to the LIGA technique, in suitable materials such as gold, nickel or a nickel-based alloy such as nickel-phosphorus.
  • the lower and upper parts 9, 10 may also be of a fragile material such as silicon and obtained by an etching technique, for example of the DRIE type.
  • electroformed metal elements may be associated with them in the silicon or at its periphery, as described in the patent application. EP 2145237 , or silicon welded, as described in the patent application EP 2579104 .
  • the watchmaking component may comprise two silicon monolithic parts each defining two rigid parts connected by an elastic blade, and the rigid parts or one of them may be connected to complementary rigid metal parts used for example of fixing parts.
  • the watch component 1 With its two assembled parts 9, 10, each comprising one of the elastic blades 7, 9, the watch component 1 according to the invention is relatively easy to manufacture and can have a small footprint.
  • the present invention could be applied to other watch components that a clutch rocker, for example to another type of rocker or lever such as a blocker, a feeler, a hammer or a corrector, to an oscillator serving time base (that is to say fulfilling the function of a sprung balance) or an escape anchor.
  • a rocker it could carry another element that a wheel, for example a finger or ratchet, mounted fixed or pivoting on the rocker.
  • the rocker could also carry several different elements.
  • peripheral portion 3 could be a fixing part for mounting the watch component on a support
  • central portion 2 could be an active part, movable relative to the support.
  • the number of separate crossed elastic blades 7, 8 may be greater than two.
  • the watch component 1 could comprise three, four or more superimposed monolithic pieces of the type of the parts 7, 11, 12 and 8, 13, 14, in particular to increase the stiffness, perpendicular to the plane of the component, of the elastic member defining the virtual axis of rotation 5.
  • the figure 10 shows an oscillator 25 for performing the function of a balance-spring, comprising four assembled monolithic parts 26, 27, 28, 29 together forming an inner fixing portion 30, a movable peripheral portion 31 and two elastic members 32, 33 connecting the inner fixing part 30 and the moving peripheral part 31.
  • the mobile peripheral part 31 has an annular shape and the inner fixing part 30 has an annular arc shape concentric with the mobile peripheral part 31.
  • the mobile peripheral portion 31 acts as an oscillating piece of inertia (pendulum) while the elastic members 32, 33 play the role of the hairspring.
  • the elastic members 32, 33 are superimposed and define an axis of rotation Z for the balance.
  • Each resilient member 32, 33 comprises two separate crossed blades 32a, 32b, 33a, 33b which connect the fixing portion 30 and the mobile peripheral portion 31. Spacers 34, 35 can separate the monolithic pieces 26, 27 from the monolithic pieces 28, 29.
  • this clock component 25 has a low rigidity in the direction of rotation Rz about the Z axis, but a very high rigidity in the rotation directions Rx, Ry around X axes, Y perpendicular to the Z axis, as well as a very high translational stiffness along the X, Y and Z axes.
  • the figure 11 shows an oscillator 25 'which differs from the oscillator 25 in that the monolithic pieces 28, 29 have been inverted to change the relative vertical position of the blades 33a, 33b.
  • the figure 12 shows an oscillator 25 "which differs from the oscillator 25 in that the monolithic parts 28, 29 have been rotated 180 ° with respect to the monolithic parts 26, 27, the oscillator 25" thus comprising two inner fixing parts 30a, 30b diametrically opposed and defined respectively by the monolithic parts 26, 27 and by the monolithic parts 28, 29.
  • the monolithic parts 28, 29 can also be rotated relative to each other.
  • the oscillator 25 may be to change the shape of the inner fixing portion 30 and the movable peripheral portion 31.
  • the inner fixing portion 30 could be a central portion such as the central portion 2 of the Figures 1 to 3
  • the mobile peripheral portion 31 could be an interrupted ring.
  • the present invention is also not limited to monolithic parts each having a single elastic blade.
  • the figure 13 shows a watch component (such as an oscillator) or a part of a watch component, each monolithic piece of which comprises two elastic strips 36, 37, respectively 38, 39, which are parallel (as shown) or non-parallel.
  • the figure 14 shows another watch component or part of a watch component of which each monolithic piece comprises two elastic strips 40, 41, respectively 42, 43, which are parallel (as shown) or non-parallel.
  • the elastic blades of the different monolithic pieces are not necessarily located in different planes, the essential being that they intersect in a non-physical way, that is to say without contact.
  • the Figures 15 to 17 show elastic blades of two respective monolithic pieces intersecting without contact while they are generally in the same plane.
  • the elastic blades 44, 45 are in the same plane but have notches 46, 47 to allow their crossing.
  • each elastic blade 48, 49 leaves its plane before crossing the blades 48, 49 and then returns to its plane after crossing.
  • each elastic blade 50, 51 change of plane before the crossing of the blades.
  • many other configurations are possible in which at least part of each elastic blade is in the same plane as at least part of the other blade. This type of configuration has the advantage of making the component more compact.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
EP18194710.2A 2014-09-16 2015-05-13 Oszillator einer uhr mit flexiblem zapfen Active EP3457221B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14184944 2014-09-16
EP15167482.7A EP2998800B1 (de) 2014-09-16 2015-05-13 Uhrkomponente mit flexiblem zapfenlager

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP15167482.7A Division EP2998800B1 (de) 2014-09-16 2015-05-13 Uhrkomponente mit flexiblem zapfenlager
EP15167482.7A Division-Into EP2998800B1 (de) 2014-09-16 2015-05-13 Uhrkomponente mit flexiblem zapfenlager

Publications (3)

Publication Number Publication Date
EP3457221A2 true EP3457221A2 (de) 2019-03-20
EP3457221A3 EP3457221A3 (de) 2019-04-03
EP3457221B1 EP3457221B1 (de) 2022-08-10

Family

ID=51541010

Family Applications (2)

Application Number Title Priority Date Filing Date
EP15167482.7A Active EP2998800B1 (de) 2014-09-16 2015-05-13 Uhrkomponente mit flexiblem zapfenlager
EP18194710.2A Active EP3457221B1 (de) 2014-09-16 2015-05-13 Oszillator einer uhr mit flexiblem zapfen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP15167482.7A Active EP2998800B1 (de) 2014-09-16 2015-05-13 Uhrkomponente mit flexiblem zapfenlager

Country Status (2)

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EP (2) EP2998800B1 (de)
HK (1) HK1220013A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH713151B1 (fr) * 2016-11-23 2020-09-30 Swatch Group Res & Dev Ltd Lame flexible pour l'horlogerie, et procédé de fabrication.
WO2018109584A1 (fr) 2016-12-16 2018-06-21 Patek Philippe Sa Geneve Composant horloger a pivot flexible
EP3336613B1 (de) 2016-12-16 2020-03-11 Association Suisse pour la Recherche Horlogère Resonator für uhr, der zwei pendellager umfasst, die so angeordnet sind, dass sie auf derselben ebene schwingen können
EP3382470B1 (de) * 2017-03-29 2020-05-06 Patek Philippe SA Genève Oszillator einer uhr mit flexiblem zapfen
EP3410229B1 (de) * 2017-05-30 2021-07-14 Patek Philippe SA Genève Uhrkomponente mit flexiblem zapfen
CH713850A2 (fr) 2017-06-02 2018-12-14 Patek Philippe Sa Geneve Procédé de fabrication d'un composant mécanique à pivot flexible à lames croisées séparées.
EP3416001B1 (de) 2017-06-13 2022-04-13 Patek Philippe SA Genève Herstellungsverfahren eines oszillators mit flexiblem zapfen
EP3425458A1 (de) * 2017-07-07 2019-01-09 ETA SA Manufacture Horlogère Suisse Abtrennbares stück eines uhrenoszillators
EP3438762A3 (de) * 2017-07-28 2019-03-13 The Swatch Group Research and Development Ltd Uhrwerkoszillator mit flexiblen führungen mit grosser winkelförmiger laufbahn
EP3435172B1 (de) * 2017-07-28 2021-11-24 The Swatch Group Research and Development Ltd Herstellungsverfahren eines flexiblen führungsmechanismus für mechanischen oszillator eines uhrwerks
EP3435171B1 (de) * 2017-07-28 2021-08-25 The Swatch Group Research and Development Ltd Uhrwerkoszillator mit flexiblen führungen mit grosser winkelförmiger laufbahn
CH714024A2 (fr) * 2017-07-28 2019-01-31 Swatch Group Res & Dev Ltd Oscillateur d'horlogerie à guidages flexibles à grande course angulaire.
US10895845B2 (en) 2018-06-25 2021-01-19 The Swatch Group Research And Development Ltd Timepiece oscillator with flexure bearings having a long angular stroke
JP6843191B2 (ja) 2018-07-24 2021-03-17 ザ・スウォッチ・グループ・リサーチ・アンド・ディベロップメント・リミテッド 長い角ストロークを有するフレクシャーベアリングを備えた計時器用発振器
US11454932B2 (en) 2018-07-24 2022-09-27 The Swatch Group Research And Development Ltd Method for making a flexure bearing mechanism for a mechanical timepiece oscillator
EP3936946A1 (de) 2020-07-10 2022-01-12 Patek Philippe SA Genève Oszillator einer uhr mit flexiblem zapfen
EP4137893A1 (de) * 2021-08-20 2023-02-22 Montres Breguet S.A. Blendenartige auslösevorrichtung, insbesondere für uhrwerke
EP4137892A1 (de) * 2021-08-20 2023-02-22 Montres Breguet S.A. Blendenartige auslösevorrichtung, insbesondere für uhrwerke
EP4286959A1 (de) 2022-06-02 2023-12-06 Patek Philippe SA Genève Oszillator einer uhr mit flexiblem zapfen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB422862A (en) 1933-07-21 1935-01-21 British Thomson Houston Co Ltd Improvements in flexible coupling or suspension devices
EP2037335A2 (de) 2007-09-13 2009-03-18 August Enzler Anker für eine Uhrenhemmung
EP2145237A2 (de) 2007-05-08 2010-01-20 Patek, Philippe SA Uhrenkomponente und verfahren zu ihrer herstellung
WO2011120180A1 (fr) 2010-04-01 2011-10-06 Rolex S.A. Dispositif de blocage pour roue dentée
WO2012010408A1 (fr) 2010-07-19 2012-01-26 Nivarox-Far S.A. Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
EP2579104A2 (de) 2011-10-07 2013-04-10 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Herstellungsverfahren eines Verbunduhrwerks
EP2645189A1 (de) 2012-03-29 2013-10-02 Nivarox-FAR S.A. Flexibler Uhrhemmungsmechanismus

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
DE201823C (de) * 1907-12-22 1908-09-17 Lagerung für wippen für uhrhemmungen
CH1089267A4 (de) * 1967-08-02 1970-01-30
US5498095A (en) * 1994-05-19 1996-03-12 Snap-On Incorporated Press fitted flexural pivot joint
FR2754577B1 (fr) * 1996-10-11 1998-12-11 Suisse Electronique Microtech Pivot flexible planaire a modules unitaires monolithiques
US6479782B1 (en) * 2000-08-09 2002-11-12 Goodrich Corporation Fabrication of a brazeless cross-blade flexure block
CH701421B1 (fr) * 2009-07-10 2014-11-28 Manuf Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle Sa Oscillateur mécanique.
CH709291A2 (fr) * 2014-02-20 2015-08-28 Suisse Electronique Microtech Oscillateur de pièce d'horlogerie.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB422862A (en) 1933-07-21 1935-01-21 British Thomson Houston Co Ltd Improvements in flexible coupling or suspension devices
EP2145237A2 (de) 2007-05-08 2010-01-20 Patek, Philippe SA Uhrenkomponente und verfahren zu ihrer herstellung
EP2037335A2 (de) 2007-09-13 2009-03-18 August Enzler Anker für eine Uhrenhemmung
WO2011120180A1 (fr) 2010-04-01 2011-10-06 Rolex S.A. Dispositif de blocage pour roue dentée
WO2012010408A1 (fr) 2010-07-19 2012-01-26 Nivarox-Far S.A. Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
EP2579104A2 (de) 2011-10-07 2013-04-10 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Herstellungsverfahren eines Verbunduhrwerks
EP2645189A1 (de) 2012-03-29 2013-10-02 Nivarox-FAR S.A. Flexibler Uhrhemmungsmechanismus

Also Published As

Publication number Publication date
EP2998800A2 (de) 2016-03-23
HK1220013A1 (zh) 2017-04-21
EP2998800A3 (de) 2016-08-03
EP3457221A3 (de) 2019-04-03
EP2998800B1 (de) 2019-01-16
EP3457221B1 (de) 2022-08-10

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