EP2843482A1 - Triebfeder einer Uhr mit Spielnachstellung - Google Patents

Triebfeder einer Uhr mit Spielnachstellung Download PDF

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Publication number
EP2843482A1
EP2843482A1 EP13004316.9A EP13004316A EP2843482A1 EP 2843482 A1 EP2843482 A1 EP 2843482A1 EP 13004316 A EP13004316 A EP 13004316A EP 2843482 A1 EP2843482 A1 EP 2843482A1
Authority
EP
European Patent Office
Prior art keywords
serge
hub
mobile
teeth
mobile according
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Withdrawn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
EP13004316.9A
Other languages
English (en)
French (fr)
Inventor
Frédéric Maier
Anthony Krüttli
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
Priority to EP13004316.9A priority Critical patent/EP2843482A1/de
Priority to PCT/IB2014/061723 priority patent/WO2015033238A1/fr
Priority to EP14728349.3A priority patent/EP3042250B1/de
Publication of EP2843482A1 publication Critical patent/EP2843482A1/de
Priority to HK16111869.7A priority patent/HK1223689A1/zh
Withdrawn legal-status Critical Current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
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears
    • 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
    • G04B13/025—Wheels; Pinions; Spindles; Pivots with elastic means between the toothing and the hub of a toothed wheel

Definitions

  • the present invention relates to a mobile watch, wheel, pinion or ring gear intended to be incorporated in a cog or kinematic chain and therefore cooperating with at least one other mobile or gear, this watch mobile to allow to eliminate any play between its teeth and that of the other mobile with which it meshes.
  • This invention therefore relates to a watchmaker mobile game catching.
  • the document US 2808033 discloses a backlash gear comprising a first gear wheel secured to an axis and a second gear, of the same diameter as the first gear, integral with a tube.
  • the axis of the first gearwheel extends into the tube of the second gearwheel and is fixed to this tube at its free end so that the teeth of the first and second wheels are shifted.
  • the axis and the tube form a torsion bar allowing the wheels to angularly shift by elastic deformation of the torsion bar.
  • Such a catch-up gear has major disadvantages which are its size due to the length of the axis and the tube and the very large torque necessary to angularly offset the wheels relative to each other which induces high friction forces between this game-catching gear and the gear with which it meshes which can lead to high energy losses and poor performance of the kinematic chain thus produced.
  • the object of the present invention is to provide a watch-making mobile with catch-up clearance which is very compact, especially of very small thickness, and which is monobloc to facilitate its incorporation into a mechanism.
  • Another object of the present invention is to provide a watchmaking mobile with backlash in which the torque necessary to move the two toothed wheels is low so as not to affect the efficiency of a transmission chain comprising such a mobile game catch-up
  • Another goal is to make a mobile watchmaker to catch up with a game of low weight.
  • the subject of the present invention is a watchmaking mobile device with clearance adjustment that obviates the abovementioned disadvantages, consisting of a one-piece assembly comprising a hub; a first serge serrated rigidly connected to the hub; a second serge serrated connected to the hub by second elastically deformable arms allowing angular displacement of the second serge relative to the first serge.
  • the first embodiment of the watchmaking mobile with catching up game illustrated with the Figures 1 to 4 consists of a first element 1 ( Fig. 3 ) having a first toothed serge 1.1 a first hub 1.2 and first rigid arms 1.3 rigidly connecting the first toothed serge 1.1 to the first hub 1.2 and a second element 2 having a second tooth serge 2.1, a second hub 2.2. and second resiliently deformable arms 2.3 connecting the second hub 2.2 to the second serge 2.1.
  • At least one of the hubs 1.2, 2.2 is slightly thicker than the serge and the corresponding arms so that when the two elements 1 and 2 are superimposed and secured by their hubs 1.2, 2.2 the arms 1.3, 2.3 and the serges 1.1, 2.1 of these two elements 1, 2 do not touch but are separated by a game that can be very small of the order of a few thousandths, or hundredths, millimeters, the thickness of the serges 1.2 and 2.1 being of the order of a few hundredths of a millimeter, for example 10, 15 or 20 hundredths of a millimeter.
  • first and second elements 1, 2 can of course be secured to one another by any other means including mechanical clamping means.
  • the number of teeth of the first serge 1.1 is preferably identical to the number of teeth of the second serge 2.1, the pitch of these two teeth are also preferably identical, against the shape of the teeth of the first serge 1.1 can be indifferently identical or different from the shape of the teeth of the second serge 2.1.
  • the arms 1.2 of the first element are rigid, not elastically deformable, and their dimensioning is provided according to the torque that mobile watch must be able to transmit.
  • These first rigid arms can be replaced by any rigid connection, for example a board.
  • This first element 1 of the watchmaking mobile device with play catching of this first embodiment further comprises in its center and connected to its first hub 1.2 a pinch fixing device 1.4 for fixing the watchmaker to play catch on an axis.
  • the first hub can be glued to an axis or to a metal part enabling the assembly to be driven on an axis.
  • the second element 2 further comprises rigid abutment arms 2.4 extending radially from its second hub 2.2 to the second serge 2.1, the free ends of which are situated between abutments 2.5 that comprise the inner periphery of the second serge.
  • These stop arms 2.4 and these stops 2.5 limit the amplitude of the angular displacement that the second serge 2.1 may perform relative to the second hub to prevent the elastic arms 2.3 of the second element 2 from accidentally breaking during handling or shock .
  • the first element 1 and the second element 2 are made from a silicon wafer for example by etching according to the DRIE (Deep Reactive-ion-etching) method and the assembly of the first and second elements. is by fusion bonding of their respective hubs 1.2, 2.2 on top of one another.
  • DRIE Deep Reactive-ion-etching
  • the attachment of the first element 1 to the second element 2 is such that the toothing of the second serge 2.1 is angularly offset relative to the teeth of the first serge 1.1, whereas the second elastic arms 2.3 of the second element are the state of rest, not elastically deformed.
  • the offset of the teeth of the first serge 1.1 and the second serge 2.1 is such that regardless of the distance between the watch mobile gaming catch-up and the mobile with which it meshes and regardless of its position .angular a tooth of the mobile with which it meshes is pinched between two teeth of the mobile watch with catch-up clearance.
  • the mobile watchmaker play catch is monobloc, very thin and therefore space-saving particularly in height or thickness.
  • this mobile watchmaker with catch-up game avoids any game with other mobiles with which it meshes.
  • it is easy to control the low spring stiffness of the second elastically deformable arms which minimizes the energy consumption of the train comprising this mobile watch while maintaining a small footprint.
  • the torque between the two sets 1 and 2 can be reduced just to its value necessary to ensure the play catchup without more, so that the losses are reduced to a minimum.
  • the figure 10 illustrates for a watch making mobile watch this first embodiment the torque consumed compared to the available torque.
  • the energy consumption as a percentage of the available torque as a function of the angular stiffness of the second elastic arms 2.3, connecting the two toothed serges does not exceed 10% of the torque transmitted for an angular stiffness of 400 ⁇ Nm / ° which is weak and negligible.
  • the angular stiffness of the second elastic arms 2.3 is between 50 and 300 ⁇ Nm / ° preferably about 200 ⁇ Nm / °. This can be obtained during manufacture by calculating the thickness, the length and the width of the second elastic arms 2.3.
  • the first serrated serge 1 has the same number of teeth as the second serrated serge 2 and these teeth are of identical shape.
  • the number of teeth of the first serge 1 may be different from that of the second serge 2 as the shape of the teeth of said serrations 1, 2 may be different.
  • the number and shape of the teeth of the two toothed serges are identical and the angular offset of these two serrations 1, 2 is at most equal to half a step of said teeth of these serges 1, 2.
  • the figure 5 illustrates a variant of the watchmaking mobile device with catch-up of the first embodiment described with reference to the Figures 1 to 4 in which the second element 2 comprises a second toothed serge 2.1 and a second hub 2.2.
  • the connection between this second serge 2.1 and the second hub 2.2 is here with the aid of a second flexible spiral elastic arm 2.6 which may have one or more turns and whose ends have come from one piece with the other.
  • second serge 2.1 and the other with the second hub 2.2., the second flexible spiral elastic arm thus allows, once the second hub 2.2 secured to the first hub 1.3 of the watchmaking mobile take-up play an angular displacement of the second serge 2.1 by report to the first serge 1.1.
  • the second element 2 comprises a plurality of flexible second flexible spiral arms 2.7 connecting the second serge 2.1 to the second hub 2.2.
  • the second element 2 comprises second resilient flexible arms, here three, curved 2.8 connecting the second serge 2.1 to the second hub 2.2.
  • FIGS. Figures 1 to 4 illustrate a second embodiment of the watchmaking mobile with play catching practically identical to that illustrated in FIGS. Figures 1 to 4 but obtained by a different manufacturing process.
  • the watchmaking mobile with backlash is obtained by deep-etching etching (DRIE) machining of a composite wafer plate comprising a layer of silicon oxide between two silicon layers. .
  • This pellet is etched from each of its faces to form by DRIE engraving of its first face the first serge 1.1, the first hub 1.2 and the rigid arms 1.3 and the attachment formation 1.4.
  • DRIE engraving of its second face one forms the second serge 2.1, the second hub 2.2. and the second elastic arms 2.3.
  • the stop arms 2.4 and the abutments 2.5 are also obtained by this second etching.
  • the watchmaking mobile device with a backlash may consist of a silicon - metal - silicon sandwich using the combined DRIE and LIGA techniques.
  • the watchmaking mobile game retrofit thus obtained is monobloc, made from a single plate (wafer) composite, and has all the advantages listed, with reference to the first embodiment of the watchmaker.
  • the shape of the second elastic arms 2.3 could also be spiral-shaped or curved as illustrated in FIGS. Figures 5, 6 and 7 because these forms depend only on the etching of the upper layer of the composite plate.
  • the watch-making mobile watch has a first serrated serge 1.1 and a second serrated serge 2.1 superimposed, preferably of the same diameter and preferably having the same number of teeth.
  • the first toothed serge 1.1 is connected to a hub 1.2, 2.2 of the mobile by rigid arms 1.3.
  • the second toothed serge 2.1 is connected to the hub 1.2, 2.2. mobile by second elastically deformable arms 2.3.
  • the mobile is considered to be monobloc because it is either obtained by etching from both sides of a silicon-silicon oxide-silicon sandwich plate or obtained by fusion bonding at the first and second hubs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Micromachines (AREA)
EP13004316.9A 2013-09-03 2013-09-03 Triebfeder einer Uhr mit Spielnachstellung Withdrawn EP2843482A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP13004316.9A EP2843482A1 (de) 2013-09-03 2013-09-03 Triebfeder einer Uhr mit Spielnachstellung
PCT/IB2014/061723 WO2015033238A1 (fr) 2013-09-03 2014-05-26 Mobile horloger a rattrapage de jeu
EP14728349.3A EP3042250B1 (de) 2013-09-03 2014-05-26 Triebfeder einer uhr mit spielnachstellung
HK16111869.7A HK1223689A1 (zh) 2013-09-03 2016-10-14 具有間隙補償的發條裝置系

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13004316.9A EP2843482A1 (de) 2013-09-03 2013-09-03 Triebfeder einer Uhr mit Spielnachstellung

Publications (1)

Publication Number Publication Date
EP2843482A1 true EP2843482A1 (de) 2015-03-04

Family

ID=49110969

Family Applications (2)

Application Number Title Priority Date Filing Date
EP13004316.9A Withdrawn EP2843482A1 (de) 2013-09-03 2013-09-03 Triebfeder einer Uhr mit Spielnachstellung
EP14728349.3A Active EP3042250B1 (de) 2013-09-03 2014-05-26 Triebfeder einer uhr mit spielnachstellung

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP14728349.3A Active EP3042250B1 (de) 2013-09-03 2014-05-26 Triebfeder einer uhr mit spielnachstellung

Country Status (3)

Country Link
EP (2) EP2843482A1 (de)
HK (1) HK1223689A1 (de)
WO (1) WO2015033238A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3220207A1 (de) * 2016-03-16 2017-09-20 Gfpi S.A. Anzeigesystem für uhr
EP3882714A1 (de) * 2020-03-19 2021-09-22 Patek Philippe SA Genève Verfahren zur herstellung einer uhrenkomponente aus silizium
WO2024038199A1 (fr) * 2022-08-18 2024-02-22 Bulgari Horlogerie Sa Mécanisme pour pièce d'horlogerie à sonnerie

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218688A (fr) * 1940-11-06 1941-12-31 Henry Georges Mouvement d'horlogerie avec aiguille de secondes au centre.
CH231519A (fr) * 1943-06-25 1944-03-31 Sa Ebosa Minuterie de mouvement de montre "roskopf".
CH281186A (fr) * 1949-07-27 1952-02-29 D Ebauches De Peseux S A Fab Mouvement de montre.
US2808033A (en) 1955-07-27 1957-10-01 Hydro Torque Inc Torque unit
JPS5334570A (en) * 1976-09-10 1978-03-31 Seiko Instr & Electronics Ltd Electronic watch
US20020121152A1 (en) 2001-03-05 2002-09-05 White David C. Phased gear set comprised of a pair of phased gears
EP2172815A1 (de) * 2008-10-02 2010-04-07 Montres Breguet S.A. Räderwerk für Uhr

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH218688A (fr) * 1940-11-06 1941-12-31 Henry Georges Mouvement d'horlogerie avec aiguille de secondes au centre.
CH231519A (fr) * 1943-06-25 1944-03-31 Sa Ebosa Minuterie de mouvement de montre "roskopf".
CH281186A (fr) * 1949-07-27 1952-02-29 D Ebauches De Peseux S A Fab Mouvement de montre.
US2808033A (en) 1955-07-27 1957-10-01 Hydro Torque Inc Torque unit
JPS5334570A (en) * 1976-09-10 1978-03-31 Seiko Instr & Electronics Ltd Electronic watch
US20020121152A1 (en) 2001-03-05 2002-09-05 White David C. Phased gear set comprised of a pair of phased gears
EP2172815A1 (de) * 2008-10-02 2010-04-07 Montres Breguet S.A. Räderwerk für Uhr

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3220207A1 (de) * 2016-03-16 2017-09-20 Gfpi S.A. Anzeigesystem für uhr
WO2017157764A3 (fr) * 2016-03-16 2017-11-09 Gfpi S.A. Systeme d'affichage pour piece d'horlogerie
US11249442B2 (en) 2016-03-16 2022-02-15 Gfpi S.A. Display system for a timepiece
EP3882714A1 (de) * 2020-03-19 2021-09-22 Patek Philippe SA Genève Verfahren zur herstellung einer uhrenkomponente aus silizium
WO2021186333A1 (fr) * 2020-03-19 2021-09-23 Patek Philippe Sa Geneve Procede de fabrication d'un composant horloger en silicium
WO2024038199A1 (fr) * 2022-08-18 2024-02-22 Bulgari Horlogerie Sa Mécanisme pour pièce d'horlogerie à sonnerie
FR3138950A1 (fr) * 2022-08-18 2024-02-23 Bulgari Horlogerie Sa Mécanisme pour pièce d’horlogerie à sonnerie.

Also Published As

Publication number Publication date
EP3042250B1 (de) 2017-07-05
WO2015033238A1 (fr) 2015-03-12
EP3042250A1 (de) 2016-07-13
HK1223689A1 (zh) 2017-08-04

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