EP1445668A1 - Schwungmasse - Google Patents

Schwungmasse Download PDF

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Publication number
EP1445668A1
EP1445668A1 EP03405056A EP03405056A EP1445668A1 EP 1445668 A1 EP1445668 A1 EP 1445668A1 EP 03405056 A EP03405056 A EP 03405056A EP 03405056 A EP03405056 A EP 03405056A EP 1445668 A1 EP1445668 A1 EP 1445668A1
Authority
EP
European Patent Office
Prior art keywords
sector
gravity
center
parts
oscillating weight
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
EP03405056A
Other languages
English (en)
French (fr)
Other versions
EP1445668B1 (de
Inventor
Alberto Papi
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.)
Vaucher Manufacture Fleurier SA
Original Assignee
Vaucher Manufacture Fleurier 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
Priority to DE60328353T priority Critical patent/DE60328353D1/de
Application filed by Vaucher Manufacture Fleurier SA filed Critical Vaucher Manufacture Fleurier SA
Priority to EP03405056A priority patent/EP1445668B1/de
Priority to PCT/IB2004/000400 priority patent/WO2004070478A2/fr
Priority to CNB2004800034286A priority patent/CN100430842C/zh
Priority to US10/541,287 priority patent/US7217030B2/en
Priority to JP2006502440A priority patent/JP4334566B2/ja
Priority to KR1020057014224A priority patent/KR101016252B1/ko
Publication of EP1445668A1 publication Critical patent/EP1445668A1/de
Priority to HK04110228.9A priority patent/HK1067718A1/xx
Application granted granted Critical
Publication of EP1445668B1 publication Critical patent/EP1445668B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B5/00Automatic winding up
    • G04B5/02Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16Construction of the weights
    • G04B5/165Weights consisting of several parts
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B5/00Automatic winding up
    • G04B5/02Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/18Supports, suspensions or guide arrangements, for oscillating weights
    • G04B5/188Bearing, guide arrangements or suspension of the movement forming oscillating weight

Definitions

  • the present invention relates to automatic watches. It relates more particularly to oscillating masses.
  • Automatic watches have a movement fitted with a base of time, of a gear synchronized by the time base, of an accumulator of energy, generally a barrel, feeding the time base and ensuring the gear train, and an automatic mechanism providing energy to the energy accumulator.
  • this mechanism includes an oscillating mass, mounted pivoting on the movement frame by means of a bearing, an inverter transforming the reciprocating movement of the mass into a movement of rotation in one direction only, and a winding cog, which is of the type reducer, driven by the reverser.
  • the oscillating mass is arranged to carry a bearing, for example a ball bearing, which defines an axis of rotation. It has an organ mass having a center of gravity offset from the axis of rotation.
  • the mass organ is generally designed to generate a maximum torque. It is made of heavy material, often gold or platinum in high-end watches. It includes, at its periphery, a inertia sector defining the important part of its mass, and a board connecting the sector to the landing.
  • the oscillating mass generates a torque which is essentially a function of the mass the sector and the position of its center of gravity, with reference to the axis of rotation.
  • This torque is applied to the first mobile of the gear train. wind through the inverter.
  • the reduction rate of the train of gears forming the winding cog defines the torque finally applied to the barrel spring.
  • the first part of the oscillating mass comprises, in addition, a board, arranged to carry the bearing, and an inertia sector.
  • This board extends from the center, which has a hole in which is engaged the bearing, towards the periphery which carries the inertia sector.
  • the second part is formed of at least minus a counterweight pivotally mounted on the sector.
  • the device fixing comprises indexing means arranged to position the counterweight in a finite number of predefined positions in which the fastening device keeps the flyweight in place in its second state, while it allows the passage from one to the other of these positions when it is in its first state.
  • the second part has two weights.
  • one of the weights can occupy a finite number n of defined positions so that the passage of said weight from one to the other of them generates a radial displacement of the center of gravity with a value ⁇ G, and in that the second flyweight is arranged so as to be able to occupy a number m of positions whose passage from one to the other of them generates a radial displacement of the center of gravity with a value ⁇ g, said weights being arranged so that the product m. ⁇ g is substantially equal to ⁇ G.
  • the mass moment of inertia decreases with the couple generated.
  • the second part of the mass also includes a board and an inertia sector, arranged side by side respectively of the board and the sector of the first part.
  • the fastening device is arranged to allow movement relative of the second part with reference to the first part by rotation around the axis of the oscillating mass.
  • the mass shown in Figure 1 comprises a plate 10 comprising a central portion 10a of generally annular shape, provided with an opening central 10b intended to receive a bearing 12 partially represented, by example a ball bearing, and arms 10c extending radially towards outside.
  • the central opening 10b is circular, defined by a circle of axis A-A.
  • the board 10 In its central portion 10a, the board 10 carries, arranged in a ring, threaded rods 13 intended to secure the bearing 12 by means of bolts 14.
  • the arms 10c are connected by an annular portion 10d of center arranged on the axis A-A. It has three holes in which screws 16a are engaged.
  • the board 10 is integral with the sector 18 only at an angle of approximately 90 °, by its annular portion 10d.
  • the edges of the arms 10c connecting the portion central 10a to the annular portion 10d are also in arcs of circles whose centers are each at one end of sector 18, confused with the centers of the other two tapped feet 20. These edges each carry six threaded feet 22, distributed regularly.
  • Weights 24 are mounted one on each of the end legs 20. They have a general shape of a sector of a circle and include, at the apex 24a of the sector, a cylindrical hole in which the foot is engaged tapped 20, a screw 16b ensuring the axial maintenance.
  • the opposite side has a finger 24b having an opening intended to be engaged in one either of the threaded feet 22.
  • a nut 26 is screwed onto the foot 22 to hold the counterweight 24 by its finger 24b.
  • the inertia sector 18 and the board 10 form a first part of a mass organ, and the flyweights 24 a second part, the center of gravity of this organ being in G.
  • the screws 16, the tapped feet 20 and the threaded feet 22, as well as the nuts 26 take the place of a fixing device, which allows or not, depending on whether its constituents are in an unscrewed or screwed state, the movement of the flyweights 24 with reference to the inertia sector 18 and to the board 10.
  • the threaded feet provide indexing of the flyweights 24, so that these can occupy a determined number of positions.
  • the torque adjustment can be carried out by any watchmaker trained in this effect.
  • a first adjustment can be made at the time of the sale of the watch, by qualifying the person for whom it is intended in reference to his physical activities, both professional than leisure.
  • the user manual for the watch defines the position in which the weights must be. After a few days of wearing, it is possible to check that the chosen position is the right one. To make the adjustment, simply unscrew the screws 16b and the nuts 26 to be able to move the counterweights 24, then screw them back in when these weights 24 are in the chosen position.
  • weights which do not have the same characteristics.
  • One of them can occupy a finite number n of positions, defined in such a way that the passage from one to the other of them generates a radial displacement of the center of gravity by a value ⁇ G.
  • the second counterweight is arranged so as to be able to occupy a number m of positions the passage of which from one to the other of them generates a radial displacement of the center of gravity by a value ⁇ g.
  • the weights are dimensioned so that the product m. ⁇ g is substantially equal to ⁇ G. In this way, it is possible to make a precise correction.
  • the adjustment can be done particularly easily in a watch equipped with a power reserve. It then suffices to establish a correlation between the movement of the weights and the degree of winding of the spring.
  • This mass comprises first and second parts 32 and 34 comprising each a board and a sector of inertia, respectively referenced 36 and 38 for the first part 32, 40 and 42 for the second part 34.
  • the boards 36 and 40 have a general shape of a sector of a circle, with an angle at the top approximately equal to 45 °.
  • the top part is cut to form an annular portion identified by the letter a , embracing an angle of about 200 ° for the portion 36a and about 90 ° for the portion 40a, as can be seen in Figure 2c.
  • These portions are pierced with holes identified by the letter b , three oblong holes in the portion 36a and two cylindrical holes in the portion 40a.
  • the two boards are joined to each other by means of a device fixing comprising a clamping ring 44 provided with tapped holes 44a and disposed below the portions 36a and 40a, a cover 46 placed above portions 36a and 40a, provided with cylindrical holes 46a aligned on the holes 44a, and screws 48 freely engaged in the holes of the cover 46 and annular portions 36a and 40a, and clamped in the tapped holes 44a of the clamping ring 44.
  • a device fixing comprising a clamping ring 44 provided with tapped holes 44a and disposed below the portions 36a and 40a, a cover 46 placed above portions 36a and 40a, provided with cylindrical holes 46a aligned on the holes 44a, and screws 48 freely engaged in the holes of the cover 46 and annular portions 36a and 40a, and clamped in the tapped holes 44a of the clamping ring 44.
  • the plate 36 is provided with oblong holes, it is possible to angularly move with reference to plate 40, around an axis corresponding to the pivot axis A-A of the mass, if the screws 48 are loose.
  • the boards 36 and 40 are each pierced with three holes identified by the letter c , made at the periphery of the circle sector. Their function will be specified later,
  • the inertia sectors 38 and 42 each include an annular portion, identified by the letter a and embracing an angle of approximately 80 °, and a bearing surface b attached to the annular portion a in its concave part.
  • the span b which extends over approximately 45, serves as a support for the board. It is provided with two cylindrical holes identified by the letter c , in which are engaged, for each of them, a clamping pin 50, which is provided with a tapped hole.
  • Two screws 52 are engaged in two of the holes c of the boards 36 and 40 and in the tenons 50 in which they are tightened.
  • the boards 36 and 40 are, in this way, respectively integral with the sectors 38 and 42.
  • sectors 38 and 42 could also be made in one piece respectively with the boards 36 and 40, or welded to each other.
  • the fixing device further comprises a stiffening arm 54, in the form of an annular portion embracing an angle of approximately 90 °, arranged in the extension of the ranges 38b and 42b.
  • This arm includes two oblong openings 54a each arranged opposite the third hole planks.
  • a screw 56 cooperating with a nut 58, is engaged in each of these holes and in the holes 36c and 40c not occupied by the screws 52, so that by tightening the screw and its nut, it is possible to make rigidly attached to the two parts.
  • the mass according to the invention has two parts moving one with reference to the other, their displacement inducing a change in radial position of its center of gravity, it is possible to optimize the working conditions of automatic watches, and thus obtain an optimal yield for a minimum volume, and whatever are the conditions imposed by the holder.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Toys (AREA)
  • Golf Clubs (AREA)
  • Electric Clocks (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP03405056A 2003-02-04 2003-02-04 Schwungmasse Expired - Lifetime EP1445668B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP03405056A EP1445668B1 (de) 2003-02-04 2003-02-04 Schwungmasse
DE60328353T DE60328353D1 (de) 2003-02-04 2003-02-04 Schwungmasse
CNB2004800034286A CN100430842C (zh) 2003-02-04 2004-02-04 摆锤
US10/541,287 US7217030B2 (en) 2003-02-04 2004-02-04 Oscillating weight
PCT/IB2004/000400 WO2004070478A2 (fr) 2003-02-04 2004-02-04 Masse oscillante
JP2006502440A JP4334566B2 (ja) 2003-02-04 2004-02-04 回転錘
KR1020057014224A KR101016252B1 (ko) 2003-02-04 2004-02-04 회전추
HK04110228.9A HK1067718A1 (de) 2003-02-04 2004-12-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03405056A EP1445668B1 (de) 2003-02-04 2003-02-04 Schwungmasse

Publications (2)

Publication Number Publication Date
EP1445668A1 true EP1445668A1 (de) 2004-08-11
EP1445668B1 EP1445668B1 (de) 2009-07-15

Family

ID=32605482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405056A Expired - Lifetime EP1445668B1 (de) 2003-02-04 2003-02-04 Schwungmasse

Country Status (8)

Country Link
US (1) US7217030B2 (de)
EP (1) EP1445668B1 (de)
JP (1) JP4334566B2 (de)
KR (1) KR101016252B1 (de)
CN (1) CN100430842C (de)
DE (1) DE60328353D1 (de)
HK (1) HK1067718A1 (de)
WO (1) WO2004070478A2 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008003735A2 (fr) * 2006-07-05 2008-01-10 Marco Danzinelli Montre automatique
EP2592499A1 (de) * 2011-11-08 2013-05-15 ETA SA Manufacture Horlogère Suisse Schwungmasse
WO2020089877A1 (fr) 2018-11-02 2020-05-07 Guenat Sa Montres Valgine Masse oscillante à géométrie variable pour mécanisme horloger

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1918789B1 (de) * 2006-10-31 2008-12-24 The Swatch Group Management Services AG Schwingmasse zum Wiederaufladen der Energiequelle eines tragbaren Instruments
ATE544098T1 (de) * 2008-04-15 2012-02-15 Montres Jaquet Droz Sa STOßDÄMPFER FÜR SCHWUNGMASSE
EP2228693B1 (de) * 2009-03-13 2013-03-13 Bulgari Horlogerie S.A. Befestigungsvorrichtung für Schlagglocken einer Uhr mit Schlagwerk
CH703577B1 (fr) * 2011-03-23 2015-10-15 Christian Dior Couture Sa Masse oscillante pour montre automatique et montre automatique comportant une telle masse.
JP5731872B2 (ja) * 2011-03-30 2015-06-10 セイコーインスツル株式会社 時計用回転錘およびその回転錘を備えた時計
CH706000B1 (fr) * 2012-01-13 2023-09-15 Christian Dior Couture Sa Masse de remontage.
WO2013141493A1 (ko) * 2012-03-20 2013-09-26 Son Se Ik 시계 무브먼트의 로터
USD772095S1 (en) * 2014-07-16 2016-11-22 Richemont International Sa Oscillating weight
USD892666S1 (en) * 2018-01-05 2020-08-11 Harry Winston Sa Oscillating weight
TWD196218S (zh) * 2018-02-20 2019-03-01 瑞士商哈利溫士頓公司 針盤
EP3879354A1 (de) * 2020-03-09 2021-09-15 The Swatch Group Research and Development Ltd Aufziehschwungmasse für ein automatisches uhrwerk, die mit einem schmuckelement ausgestattet ist
CN111665706B (zh) * 2020-07-03 2021-03-30 郑君雄 一种自动上弦且可以受到震动发出警报的老人手表
USD982468S1 (en) * 2022-02-28 2023-04-04 Cartier International Ag Watch dial

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH317534A (fr) * 1954-05-06 1956-11-30 Bueren Watch Company S A Masse pour montre à remontage automatique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2988869A (en) * 1958-03-26 1961-06-20 Buren Watch Company S A Self-winding watch
CH590505B5 (de) * 1975-05-30 1977-08-15 Ebauchesfabrik Eta Ag
JP2582155B2 (ja) * 1989-04-25 1997-02-19 シチズン時計株式会社 自動巻用オモリ
CN2149643Y (zh) * 1993-01-01 1993-12-15 王文君 超薄型机械自动手表
JP3686123B2 (ja) * 1995-06-22 2005-08-24 ペルレ ソシエテ アノニム 時計の自動ぜんまい巻き装置
EP0957414B1 (de) * 1998-05-07 2003-02-12 Janvier S.A. Schwungmasse für Uhren mit selbstaufziehendem Uhrwerk und damit ausgestattete Uhr
JP2000065962A (ja) * 1998-08-19 2000-03-03 Seiko Epson Corp 回転錘、時計、および回転錘の製造方法
EP1046965B1 (de) * 1999-04-23 2004-08-18 Rolex Sa Uhrwerk mit Schwungmassen-Selbstaufzug

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH317534A (fr) * 1954-05-06 1956-11-30 Bueren Watch Company S A Masse pour montre à remontage automatique

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008003735A2 (fr) * 2006-07-05 2008-01-10 Marco Danzinelli Montre automatique
WO2008003735A3 (fr) * 2006-07-05 2008-06-19 Marco Danzinelli Montre automatique
EP2592499A1 (de) * 2011-11-08 2013-05-15 ETA SA Manufacture Horlogère Suisse Schwungmasse
EP2592498A1 (de) * 2011-11-08 2013-05-15 ETA SA Manufacture Horlogère Suisse Schwungmasse
US8882340B2 (en) 2011-11-08 2014-11-11 Eta Sa Manufacture Horlogere Suisse Oscillating weight
RU2618442C2 (ru) * 2011-11-08 2017-05-03 Эта Са Мануфактюр Орложэр Сюис Ротор часов
WO2020089877A1 (fr) 2018-11-02 2020-05-07 Guenat Sa Montres Valgine Masse oscillante à géométrie variable pour mécanisme horloger
US11892806B2 (en) 2018-11-02 2024-02-06 Guenat Sa Montres Valgine Oscillating weight with variable geometry for a timepiece mechanism

Also Published As

Publication number Publication date
KR20050095884A (ko) 2005-10-04
JP2006517294A (ja) 2006-07-20
EP1445668B1 (de) 2009-07-15
DE60328353D1 (de) 2009-08-27
WO2004070478A2 (fr) 2004-08-19
JP4334566B2 (ja) 2009-09-30
HK1067718A1 (de) 2005-04-15
CN100430842C (zh) 2008-11-05
KR101016252B1 (ko) 2011-02-25
WO2004070478A3 (fr) 2004-11-25
CN1748185A (zh) 2006-03-15
US20060050617A1 (en) 2006-03-09
US7217030B2 (en) 2007-05-15

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