EP2060957A1 - Motorelement mit federn für uhrwerk - Google Patents

Motorelement mit federn für uhrwerk Download PDF

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Publication number
EP2060957A1
EP2060957A1 EP07120872A EP07120872A EP2060957A1 EP 2060957 A1 EP2060957 A1 EP 2060957A1 EP 07120872 A EP07120872 A EP 07120872A EP 07120872 A EP07120872 A EP 07120872A EP 2060957 A1 EP2060957 A1 EP 2060957A1
Authority
EP
European Patent Office
Prior art keywords
barrels
motor unit
unit according
springs
cage
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Withdrawn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
EP07120872A
Other languages
English (en)
French (fr)
Inventor
Olivier Mertenat
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 EP07120872A priority Critical patent/EP2060957A1/de
Priority to JP2010533524A priority patent/JP5346949B2/ja
Priority to PCT/EP2008/063419 priority patent/WO2009062792A1/fr
Priority to EP08805121A priority patent/EP2212749B1/de
Priority to CN2008801161681A priority patent/CN101861551B/zh
Priority to US12/743,213 priority patent/US8379493B2/en
Publication of EP2060957A1 publication Critical patent/EP2060957A1/de
Priority to HK11103726.2A priority patent/HK1149607A1/xx
Withdrawn legal-status Critical Current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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/12—Driving mechanisms with mainspring with several mainsprings

Definitions

  • the present invention relates to a spring drive member for a watch movement, comprising two coaxial barrels coupled in series, each barrel having a rotating cylindrical cage, provided with an external toothing and a bottom, and a spring wound to the inside the cage and having an outer end coupled to the cage and an inner end coupled to a bung, the respective bungs of the barrels being mutually integral in rotation and the respective bottoms of the barrels being located axially opposite one of the 'other.
  • the two barrels are superimposed and face each other, a provision represented in particular in the patent applications EP 1 115 040 (with two groups of two barrels) and EP 1 657 604 .
  • the coaxial and superimposed arrangement of conventional barrels gives the motor device a relatively large size in the axial direction, that is to say in the direction perpendicular to the main plate of the movement watchmaking.
  • the total height of the device comprises not only twice the respective heights of the bottom, the spring, the lid and the inner game of each barrel, but also a minimum interval between the two lids that face each other and must not to touch each other because they rotate at different speeds. Therefore, the overall height of a stacked barrel device always determines a relatively large thickness of the watch movement, and this is a disadvantage in most cases. Since we can not increase the number of turns of the development of a mainspring without reducing its performance, if the manufacturer wants to reduce the height of the barrels and therefore the springs, it automatically reduces the energy that can be stored, therefore also the power reserve of the watch.
  • the subject of the present invention is a superimposed coaxial barrel drive member which is improved so as to store more energy than such a conventional member of the same height, or to have a reduced height by using the same springs for the same capacity. energy storage.
  • An additional goal is to achieve this result with a simple construction, easy to assemble and with a small number of parts.
  • a motor member of the kind defined above in the preamble and characterized in that the two barrels are devoid of cover, their springs being separated from each other only by a separating washer or by an interval.
  • the essential improvement brought by the invention therefore lies in the possibility of removing the two lids arranged face-to-face and separated by an interval, as seen in particular in patents EP 1 115 040 and EP 1 657 604 supra.
  • these deleted elements are replaced by a simple separation washer, whose role is in particular to prevent the turns of the two springs can intersect when the springs are disarmed.
  • This washer can be very thin and made for example of a sheet of antifriction material such as PTFE. It is thus possible axially as close as possible to the two springs and give the barrel cages a height close to that of the springs.
  • the washer anti-friction material may advantageously extend between the respective cylindrical portions of the cages, which can thus be brought closer to the maximum.
  • an alternative construction is to replace said spacer washer by a sufficient interval to avoid contact between the two springs in the normal operating conditions of the watch. It can indeed be accepted that the springs can be touched briefly in certain circumstances, for example when the watch is shocked, because the effect on the running of the watch remains insignificant. If the springs touch each other when they are relaxed, the possible effect on the running of the watch may be neglected since the movement is stopped or stopping.
  • the single figure of the drawing is a diagrammatic view in axial section of a motor unit for watch movement, comprising two coaxial barrels of the same sizes, arranged in such a way that their cages and their respective springs face each other and are separated only by one thin separation washer.
  • the motor member shown in the drawing comprises a first cylinder 1 and a second cylinder 11 which are superposed and mounted on a common shaft 20 to rotate independently of one another about the axis 21 of the shaft.
  • the first barrel 1 comprises a cylindrical cage 2 having an external toothing 3, a cylindrical outer drum 4, a bottom 5 and a wide central cylindrical hub 6 rotatably mounted on bearings 22 and 23 of the shaft 20.
  • the cage 2 contains a spirally wound motor spring 7, of which only one turn has been shown in order to clarify the drawing.
  • the outer end of the spring 7 is coupled to the drum 4 by a sliding flange device, while its inner end is fixed to a bung 8 rotatably mounted around the hub 6.
  • the structure of the second barrel 11 is similar to that of the first, with a cage 12 having a toothing 13, a drum 14, a bottom 15 and a hub 16 rotatably mounted on bearing surfaces 23 and 24 of the common shaft 20.
  • the staves 22, 23 and 24 are separated by slightly reduced diameter portions, called coils, which facilitate the alignment parts and lubrication.
  • the spring 17 of the second barrel has the same dimensions and characteristics as the spring 7, except that it is wound in the opposite direction and is fixed to the drum 14 without sliding flange.
  • a bung 18 which is integral with the bung 8, these two bungs being formed by a single tubular element 25 which rotates around the two hubs 6 and 16 and bears against the bottoms 5 and 15 to maintain a small axial gap Z between the two cages 2 and 12, and between the two springs.
  • a thin separating washer 26 having an outer diameter substantially equal to that of the drums 4 and 14, which maintain it between them in axial direction, while the washer can remain freely rotatable.
  • the edge of the central hole of the washer 26 surrounds the tubular element 25 with a slight radial clearance, which keeps the washer in the radial direction.
  • the washer can be easily made by cutting into a sheet of low friction synthetic material, for example PTFE. However, if we want the washer is more rigid, it can be made of metal, possibly with antifriction coating.
  • the shaft 20 may be integral in rotation with one of the barrel cages, its ends 28 and 29 then being mounted in the usual manner, thanks to stones, in the movement plate and the barrel bridge.
  • This expensive assembly is not necessary with the construction described here, because the shaft 20 does not need to rotate, since it carries the two cages 2 and 12 and the tubular element 25 rotatively, while the supporting axially by a collar 27.
  • the end 29 of the shaft can be simply planted in a hole of the plate.
  • a circlip (not shown) may be provided above the bearing surface 22 of the shaft to axially retain the upper cage 2 when this function is not provided by the barrel bridge.
  • lights 30 being provided in the bottom 5 of the upper cage to allow to hang and unhook the spring 7 on the bung 8 after mounting this cage.
  • a winding mechanism including an automatic winding symbolized by the arrow A in the drawing, is meshed with the toothing 3 of the first barrel to rotate it to arm the springs and to prevent it from turning in the opposite direction, thanks to a ratchet incorporated in said mechanism.
  • the tubular element 25 transmits the torque of the first spring 7 to the second spring 17, so that the degree of arming of the two springs is always the same.
  • This torque is retransmitted by the toothing 13 of the second cylinder to a conventional finishing gear, represented by the arrow F and through which the escapement of the clockwork determines the speed of rotation of the second cage 12.
  • the rotational speed of the tubular element 25 is obviously equal to the average of those of the cages 2 and 12.
  • the present invention makes it possible to significantly increase the height H of each of the two springs 7 and 17.
  • the total number of parts is reduced and the manufacture of the central shaft 20, without bung, is simpler.
  • the removal of the two usual covers simplifies both the manufacture of barrel cages and the assembly of the drive member.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
EP07120872A 2007-11-16 2007-11-16 Motorelement mit federn für uhrwerk Withdrawn EP2060957A1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07120872A EP2060957A1 (de) 2007-11-16 2007-11-16 Motorelement mit federn für uhrwerk
JP2010533524A JP5346949B2 (ja) 2007-11-16 2008-10-08 時計ムーブメント用のぜんまい式駆動部材
PCT/EP2008/063419 WO2009062792A1 (fr) 2007-11-16 2008-10-08 Organe moteur a ressorts pour mouvement d'horlogerie
EP08805121A EP2212749B1 (de) 2007-11-16 2008-10-08 Federdruck-antriebsglied für ein uhrwerk
CN2008801161681A CN101861551B (zh) 2007-11-16 2008-10-08 用于钟表机芯的发条驱动件
US12/743,213 US8379493B2 (en) 2007-11-16 2008-10-08 Spring loaded driving member for timepiece movement
HK11103726.2A HK1149607A1 (en) 2007-11-16 2011-04-13 Spring loaded driving member for timepiece movement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07120872A EP2060957A1 (de) 2007-11-16 2007-11-16 Motorelement mit federn für uhrwerk

Publications (1)

Publication Number Publication Date
EP2060957A1 true EP2060957A1 (de) 2009-05-20

Family

ID=39666204

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07120872A Withdrawn EP2060957A1 (de) 2007-11-16 2007-11-16 Motorelement mit federn für uhrwerk
EP08805121A Active EP2212749B1 (de) 2007-11-16 2008-10-08 Federdruck-antriebsglied für ein uhrwerk

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08805121A Active EP2212749B1 (de) 2007-11-16 2008-10-08 Federdruck-antriebsglied für ein uhrwerk

Country Status (6)

Country Link
US (1) US8379493B2 (de)
EP (2) EP2060957A1 (de)
JP (1) JP5346949B2 (de)
CN (1) CN101861551B (de)
HK (1) HK1149607A1 (de)
WO (1) WO2009062792A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2455820A2 (de) 2010-11-17 2012-05-23 Cartier Création Studio S.A. Antriebsorgan für Uhrwerken
CH704249A1 (fr) * 2010-12-20 2012-06-29 Elsbeth Roesner Organe moteur pour mouvement horloger.
WO2013189856A2 (fr) * 2012-06-22 2013-12-27 Cartier Création Studio Sa Organe moteur pour mouvement d'horlogerie
CN104220939A (zh) * 2012-03-09 2014-12-17 索文德有限公司 发条盒
EP2963504A1 (de) * 2014-06-30 2016-01-06 Rolex Sa Federgehäuse für Uhr
CN108121188A (zh) * 2016-11-28 2018-06-05 朗格钟表有限公司 用于钟表的发条盒

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699988A2 (fr) * 2008-11-28 2010-05-31 Patek Philippe Sa Geneve Organe moteur pour mouvement horloger.
CH701968B1 (fr) * 2009-10-12 2015-02-27 Complitime Sa Source d'énergie pour sonnerie et pièce d'horlogerie munie d'une telle source d'énergie.
US9298162B2 (en) * 2010-10-01 2016-03-29 Rolex Sa Timepiece barrel with thin disks
EP2570864B1 (de) * 2011-09-15 2018-11-14 Blancpain S.A. Uhren-Federgehäuse mit reduziertem Durchmesser
EP2570863B1 (de) 2011-09-15 2017-11-08 Blancpain S.A. Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
US9448533B2 (en) * 2012-04-04 2016-09-20 Rolex Sa Barrel shaft for a clock movement, barrel spring and barrel including such a spring and/or such a shaft
EP2781971B1 (de) 2013-03-19 2017-11-08 Nivarox-FAR S.A. Struktur für Uhrwerksmechanismus
CN103235498B (zh) * 2013-05-02 2016-01-06 王冠龙 一种机械表
CN107817670A (zh) * 2016-09-13 2018-03-20 天津海鸥表业集团有限公司 一种双发条手表原动组件
EP3654109B1 (de) * 2018-11-13 2021-03-31 Patek Philippe SA Genève Uhr, die zwei energiequellen besitzt

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH49154A (fr) * 1909-11-19 1911-01-16 Georges Favre Jacot & Cie Perfectionnement aux mouvements de montres avec barillet sans couvercle
FR71490E (fr) * 1957-04-30 1960-01-05 Vedette Horlogerie Horlogerie synchrone à réserve de marche
EP1115040A1 (de) * 2000-01-06 2001-07-11 Chopard Manufacture SA Antriebsvorrichtung für Uhrwerk mit grosser Gangreserve

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US410327A (en) * 1889-09-03 meylan
US711476A (en) * 1902-02-14 1902-10-21 Hampden Watch Co Watch-barrel.
US1392676A (en) * 1915-09-04 1921-10-04 Helge A Borresen Mainspring-barrel for timepieces
JPS4920559U (de) * 1972-05-23 1974-02-21
CH610465B5 (en) * 1972-11-02 1979-04-30 Longines Montres Comp D Watch movement containing two barrels
CH1147874A4 (de) * 1974-08-22 1977-05-13
US4362553A (en) * 1979-11-19 1982-12-07 Marko Materials, Inc. Tool steels which contain boron and have been processed using a rapid solidification process and method
CN2041433U (zh) * 1988-08-09 1989-07-19 张鹏程 六十天机械时钟
EP1260883A1 (de) * 2001-05-22 2002-11-27 Parmigiani Mesure et Art du Temps SA Vorrichtung zur Anzeige der Gangreserve einer Uhr
ATE390654T1 (de) * 2002-02-01 2008-04-15 Tag Heuer Sa Vorrichtung mit uhrwerk und chronographenmodul
EP1582943B1 (de) * 2004-04-01 2008-09-03 Richemont International S.A. Uhrwerk mit mehreren Federhäusern
CH698752B1 (fr) * 2004-11-10 2009-10-15 Frank Mueller Watchland S A Pièce d'horlogerie avec mécanisme d'indication de la réserve de marche.
EP2141555B1 (de) * 2008-07-04 2011-04-06 The Swatch Group Research and Development Ltd. Gekoppelte Resonatoren für Uhr
CH699988A2 (fr) * 2008-11-28 2010-05-31 Patek Philippe Sa Geneve Organe moteur pour mouvement horloger.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH49154A (fr) * 1909-11-19 1911-01-16 Georges Favre Jacot & Cie Perfectionnement aux mouvements de montres avec barillet sans couvercle
FR71490E (fr) * 1957-04-30 1960-01-05 Vedette Horlogerie Horlogerie synchrone à réserve de marche
EP1115040A1 (de) * 2000-01-06 2001-07-11 Chopard Manufacture SA Antriebsvorrichtung für Uhrwerk mit grosser Gangreserve

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2455820A2 (de) 2010-11-17 2012-05-23 Cartier Création Studio S.A. Antriebsorgan für Uhrwerken
EP2455820A3 (de) * 2010-11-17 2016-05-18 Cartier International AG Antriebsorgan für Uhrwerken
CH704249A1 (fr) * 2010-12-20 2012-06-29 Elsbeth Roesner Organe moteur pour mouvement horloger.
CN104220939A (zh) * 2012-03-09 2014-12-17 索文德有限公司 发条盒
WO2013189856A2 (fr) * 2012-06-22 2013-12-27 Cartier Création Studio Sa Organe moteur pour mouvement d'horlogerie
WO2013189856A3 (fr) * 2012-06-22 2014-05-22 Cartier Création Studio Sa Organe moteur pour mouvement d'horlogerie
US9285771B2 (en) 2012-06-22 2016-03-15 Cartier Creation Studio Sa Drive member for clock movement
EP2963504A1 (de) * 2014-06-30 2016-01-06 Rolex Sa Federgehäuse für Uhr
US9285772B2 (en) 2014-06-30 2016-03-15 Rolex Sa Barrel for timepiece
CN108121188A (zh) * 2016-11-28 2018-06-05 朗格钟表有限公司 用于钟表的发条盒
CN108121188B (zh) * 2016-11-28 2021-10-08 朗格钟表有限公司 用于钟表的发条盒

Also Published As

Publication number Publication date
WO2009062792A1 (fr) 2009-05-22
US8379493B2 (en) 2013-02-19
CN101861551A (zh) 2010-10-13
JP2011503595A (ja) 2011-01-27
US20100246339A1 (en) 2010-09-30
HK1149607A1 (en) 2011-10-07
EP2212749B1 (de) 2012-08-29
CN101861551B (zh) 2012-02-29
EP2212749A1 (de) 2010-08-04
JP5346949B2 (ja) 2013-11-20

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