EP2634649A1 - Ökonomisches Federgehäuse für Uhrwerk - Google Patents

Ökonomisches Federgehäuse für Uhrwerk Download PDF

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Publication number
EP2634649A1
EP2634649A1 EP12157575.7A EP12157575A EP2634649A1 EP 2634649 A1 EP2634649 A1 EP 2634649A1 EP 12157575 A EP12157575 A EP 12157575A EP 2634649 A1 EP2634649 A1 EP 2634649A1
Authority
EP
European Patent Office
Prior art keywords
barrel
bung
shaft
drum
stop surface
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
EP12157575.7A
Other languages
English (en)
French (fr)
Other versions
EP2634649B1 (de
Inventor
Christophe Cattin
Raphaël Loeffel
Gaël Feusier
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 Manufacture Horlogere Suisse SA
Original Assignee
ETA Manufacture Horlogere Suisse 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
Application filed by ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to EP12157575.7A priority Critical patent/EP2634649B1/de
Priority to US13/775,599 priority patent/US8926168B2/en
Priority to RU2013108869A priority patent/RU2609401C2/ru
Priority to CN201310063145.1A priority patent/CN103293936B/zh
Priority to JP2013038561A priority patent/JP5469758B2/ja
Publication of EP2634649A1 publication Critical patent/EP2634649A1/de
Priority to HK14102271.0A priority patent/HK1189280A1/zh
Application granted granted Critical
Publication of EP2634649B1 publication Critical patent/EP2634649B1/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
    • G04B33/00—Calibers
    • G04B33/14—Calibers of which the mainsprings or barrels are easily removable
    • 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
    • G04B1/16—Barrels; Arbors; Barrel axles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the invention relates to a watch cylinder comprising a drum coaxial with a barrel axis in a pivoting direction, said drum being arranged to enclose at least one barrel spring whose one end is fixed or attached to said drum, and a second end is fixed or hooked to a plug coaxial with said barrel axis and guided on said barrel shaft.
  • the invention relates to a clockwork incorporating at least one such barrel.
  • the invention relates to a timepiece incorporating such a watch movement and / or at least one such barrel.
  • the invention relates to the field of watchmaking, and more particularly the field of barrel-spring energy storage with a mainspring for a motor movement or a ringing movement.
  • a motor cylinder for a watch movement comprises a drum, in which is mounted a barrel spring, wound around a barrel axis.
  • This barrel spring generally spiral, is hooked or attached to a first peripheral end within this drum. It is hooked or fixed to a second central end, either to this barrel axis, or to a plug which is coaxial with this barrel axis, and at least partially guided thereon.
  • the barrel pivots with respect to a turntable or a barrel bridge, at the level of the barrel shaft, or the bung, in stones or guides of this plate or this bridge.
  • the barrel is closed, to enclose the spring, either by a cover fixed to the drum by clipping or other, or by a ratchet fixed to rotate with the barrel shaft, or the bung as appropriate, and also forming a lid .
  • the integral holding of the barrel is performed only by the barrel spring itself, which is insufficient to allow automated assembly of the assembly.
  • the second central end of the spring is hooked or attached to a bung which pivots about a fixed axis integral with the plate and / or the barrel bridge, the extraction of the barrel is possible with less disassembly of movement components than in the previous case of the lid attached to the drum and independent of the ratchet.
  • the barrel may, under the effect of accelerations and especially during a shock, out of its pivot points, and can no longer perform its function of training the movement to which he and dedicated.
  • the invention proposes to design a barrel whose assembly is easily automated, in particular with a simplification of the fastening of the ratchet, and whose components are integral so as to make this barrel an autonomous subassembly ready to be mounted in a movement of higher order, especially a movement.
  • the invention also aims to allow easy extraction of the barrel relative to the movement or movement in which it is mounted.
  • the invention relates to a watch cylinder comprising a drum coaxial with a barrel axis in a pivoting direction, said drum being arranged to enclose at least one barrel spring whose one end is fixed or attached to said drum , and a second end of which is fixed or attached to a plug coaxial with said barrel axis and guided on said barrel shaft, characterized in that said plug is pivotally guided in a bore in said drum, and has a first surface of bung restriction arranged to limit the axial stroke, in said pivot direction, of said bung with respect to an inner face of said drum, and a second bung stop surface opposite said first bung restriction surface and arranged to limit the axial stroke, according to said pivoting direction, of said bung with respect to an external face of said drum, which drum ur is mounted, on the one hand prisoner between said first bung restriction surface and said second bung stop surface, and on the other hand free to pivot about said bung.
  • said first bung limiting surface and / or said second bung stop surface is constituted by a rivet radially projecting with respect to said bore of said drum.
  • said first bung-limiting surface and / or said second bung-stop surface is constituted by a component coaxial with said drain bored or fixed on said bung, and radially protruding with respect to said bore of said drum.
  • said barrel shaft is removable, and comprises a bearing arranged to cooperate in guiding, in a bore of said bung, and further comprises a first shaft stop surface and a second surface of shaft stops opposed to each other and arranged to limit, together, the axial stroke, in said pivoting direction, said barrel shaft relative to a receiving structure of said barrel.
  • At least said first shaft stop surface or said second shaft stop surface is made integrally with said shaft in the form of a collar projecting radially from said span. .
  • At least said first shaft stop surface or said second shaft stop surface is made at a removable component relative to said shaft.
  • At least said first shaft stop surface or said second shaft stop surface is constituted by a circlip or a key cooperating with a groove or housing that includes said shaft.
  • said bung comprises means for axially supporting and centering a ratchet, and means for pivoting said ratchet.
  • said means for pivoting said ratchet comprise at least one drive plate.
  • said ratchet is driven or fixed on said bung
  • said ratchet comprises spacing means with an inner surface of a receiving structure of said barrel.
  • said barrel is an engine cylinder or a ringer barrel.
  • the invention relates to a watch movement incorporating at least one such barrel, characterized in that said movement comprises a structure with at least a first partition and a second partition defining together a chamber for receiving said barrel, and each having a bore coaxial with each other for pivotally receiving and guiding said barrel shaft, said first partition having a first shaft stop complementary surface arranged to provide an axial stroke limitation of said first stop surface; shaft, and said second partition having a second complementary shaft stop surface to constitute an axial stroke limitation of said second shaft stop surface, to limit, together, the axial stroke, in said direction of rotation; pivoting said shaft relative to said structure.
  • said first partition comprises, opposite to said first complementary shaft stop surface, a first axial stroke limiting inner surface for limiting the axial stroke, in said pivoting direction, of said bung or / and said drum relative to said structure.
  • said second partition comprises, opposite to said second complementary shaft stop surface, a second axial running limiting inner surface for limiting the axial stroke, in said pivoting direction, of said bung or / and said ratchet relative to said structure.
  • said second axial stroke limiting inner surface comprises spacing means with said ratchet.
  • the invention relates to a timepiece incorporating such a watch movement and / or at least one such barrel.
  • the invention allows a significant reduction in production and assembly costs, a simplification of the barrel assembly, and also a simplification of its components. It allows the fastening of the components at the subset stages, which simplifies the assembly which can be easily automated, with a paraxial manipulator according to the pivoting direction, which further lowers the costs already improved by the simplification of the components and therefore the lowering their unit cost.
  • the barrel remains extractable after complete assembly of the movement. Finally, the impact resistance is improved by locking the barrel axis which passes through the partitions of the structure, and which is rigidly stopped by the first and second shaft stop surfaces.
  • the invention relates to the field of watchmaking, and more particularly the field of barrel-spring energy storage with a mainspring for a motor movement or a ringing movement.
  • the invention relates to a watch cylinder 1 comprising a drum 2 coaxial with a barrel axis 3 in a pivoting direction D.
  • This drum 2 is designed to enclose at least one barrel spring 4, a first end 41 of which is fixed to or hooked to this drum 2, or cooperates with the drum 2 in the case of mounting of the spring 4 by adhesion with a sliding flange, and one of which second end 42 is fixed or hooked to a plug 5 coaxial with the barrel axis 3 and guided on the barrel shaft 3, at a hook 43 or the like.
  • the bung 5 is pivotally guided in a bore 21 that the drum 2 comprises, and has a first bung limiting surface 51 arranged to limit the axial stroke, in the direction of pivoting D, of the bung 5 relative to a face internal 22 of the drum 2, and a second bung stop surface 52 opposite the first bung limiting surface 51 and arranged to limit the axial stroke, in the direction of pivoting D, of the bung 5 with respect to a face external 23 of the drum 2.
  • the drum 2 is mounted on the one hand prisoner between the first bung limiting surface 51 and the second bung stop surface 52, and on the other hand free to pivot around the bung 5.
  • the first bung restrictor surface 51 and / or the second bead stop surface 52 is constituted by a rivet 57 radially projecting from this bore 21 of the drum 2.
  • the second bung stop surface 52 is constituted by a flange 58.
  • the first bung restrictor surface 51 and / or the second bung stop surface 52 is constituted by a component coaxial with the bung 5 driven or attached to the bung 5, and radially protruding from the bore 21 of the drum 2, such as a ring or the like.
  • the Figures 5 and 6 illustrate bungs 5 having an outer guide surface 50, only the second bead stop surface 52 is radially projecting from said outer guide surface 50, on which a ring or the like constituting the first surface of 51.
  • the bung 5 then comprises, recessed from the surface 50, a hook 43 for hooking the mainspring 4 and a clearance 44 around the hook 43.
  • the barrel shaft 3 is removable, and comprises a bearing 31 arranged to cooperate in guiding in a bore 53 of the plug 5.
  • This shaft 3 also comprises a first shaft stop surface 32 and a second shaft stopping surface 33 opposed to each other and arranged to limit, together, the axial stroke, in the direction of pivoting D, of the barrel shaft 3 with respect to a structure 6 of receiving the barrel.
  • the first shaft stop surface 32 or the second shaft stop surface 33 is integrally formed with the barrel shaft 3 in the form of a flange 34 projecting radially from the span 31.
  • this flange 4 forming a head is located on a dial side of a plate 7.
  • a bridge 8 guides the other end of this barrel shaft 3, and covers the cylinder 1.
  • At least the first shaft stopping surface 32 or the second shaft stopping surface 33 is made at a removable component with respect to this barrel shaft 3.
  • at least the first shaft stop surface 32 or the second shaft stop surface 33 is constituted by a circlip 35 or a key, or a driven or bonded washer or the like, cooperating with a groove 36 or a housing that comprises the barrel shaft 3, as in the variant illustrated by the figure 1 .
  • This key or circlip guarantees the resistance of the assembly during shocks, and in particular cash the inertia of the barrel assembly, thus avoiding any deterioration of the movement 100 in which the barrel 1 is mounted.
  • the bung 5 advantageously comprises axial bearing and centering means 54 of a ratchet 9, and pivoting drive means 55 of the ratchet 9.
  • the ratchet 9 is driven out or fixed on the bung 5.
  • the pivoting drive means 55 of the ratchet 9 comprise at least one drive plate 56. They may also be constituted by two plates, a square or any other polygon, or simply result from a laser welding, gluing, or similar.
  • the clearance between the pivoting drive means 55 of the ratchet 9 and the latter is minimal, preferably an assembly is chosen with a slight tightening, so as to guarantee good concentricity at the ratchet, to avoid any disturbance of the gear.
  • the ratchet 9 comprises spacing means 91 with an inner surface 81 of an element 8, such as a bridge, of a structure 6 for receiving the barrel 1.
  • this bridge 8 carries spacing means 85.
  • the barrel shaft 3 is fixed permanently on the deck, by welding or the like.
  • Yet another variant is to bouteroller, or rivet, or the like, the end of the barrel shaft 3 protruding from the side of the bridge 8, so as to avoid the use of an additional component
  • the invention applies to a barrel 1 which is a motor cylinder or a barrel of a bell, for a timepiece such as a watch.
  • the invention also relates to a watch movement 100 incorporating at least one such barrel 1.
  • This movement 100 comprises a structure 6 with at least a first partition 7, such as a plate, and a second partition 8, such as a bridge, defining together a chamber for receiving the barrel 1, and each comprising a boring 72, 82, coaxial with each other for the reception and the pivotal guidance of the barrel shaft 3.
  • the first partition 7 comprises a first complementary shaft stop surface 73 arranged to constitute a limitation axial stroke, in particular in case of shock, the first shaft stop surface 32
  • the second partition 8 comprises a second complementary shaft stop surface 83 to constitute an axial stroke limitation of the second surface shaft stop 33, to limit, together, the axial stroke, in the direction of pivoting D, of the shaft 3 relative to the structure 6.
  • the first partition 7 comprises, opposite to the first complementary shaft stop surface 73, a first axial stroke limiting inner surface 74 for limiting the axial stroke, in the pivoting direction D, of the bung 5 or / and drum 2 relative to the structure 6.
  • this surface 74 is dimensioned so that there remains a functional game.
  • the limitation to contact is rather by the cooperation of a thread 24 that comprises the drum 2, with an opposing surface 75 of the plate 7: due to the small surface of the thread 24, the friction is reduced.
  • the same arrangement is visible on the opposite side between a thread 91 of the ratchet 9 and an opposing inner surface 81 of the bridge 8.
  • the second partition 8 comprises, opposite to the second complementary shaft stop surface 83, a second axial running limiting inner surface 84 for limiting the axial stroke, in the pivoting direction D, of the plug 5 or / and ratchet 9 with respect to the structure 6.
  • the second axial running limiting inner surface 84 comprises spacing means 85 with the ratchet 9, so as to prevent a large surface of the ratchet 9 forming a lid from rubbing over a large surface of the bridge 8.
  • the invention also relates to a timepiece 1000 incorporating at least one such movement 100, and / or at least one such barrel 1.
  • this method is implemented by a robotic manipulator. Thanks to the very simple design of the invention, only mounting movements parallel to the pivoting direction D are necessary to perform the assembly.
  • This design with pre-assembly of the drum and the bung, then assembly of the mainspring, then the ratchet on the bung, allows a ease of assembly compared to a conventional assembly where the ratchet is often preassembled on the bung.
  • the subassembly 10 can be stored pre-assembled and functionally controlled. It is enough to put it in position in its movement, to immobilize it by the barrel shaft, and to stop the latter longitudinally by a simple circlip or a simple key, to ensure a precise assembly, inexpensive, and very shock resistant.
  • the barrel remains extractable after complete assembly of the movement.
EP12157575.7A 2012-02-29 2012-02-29 Ökonomisches Federgehäuse für Uhrwerk Active EP2634649B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP12157575.7A EP2634649B1 (de) 2012-02-29 2012-02-29 Ökonomisches Federgehäuse für Uhrwerk
US13/775,599 US8926168B2 (en) 2012-02-29 2013-02-25 Economical timepiece barrel
RU2013108869A RU2609401C2 (ru) 2012-02-29 2013-02-27 Экономичный цилиндр часов
CN201310063145.1A CN103293936B (zh) 2012-02-29 2013-02-28 经济的钟表发条盒
JP2013038561A JP5469758B2 (ja) 2012-02-29 2013-02-28 経済的な時計の香箱
HK14102271.0A HK1189280A1 (zh) 2012-02-29 2014-03-06 經濟的鐘錶發條盒

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12157575.7A EP2634649B1 (de) 2012-02-29 2012-02-29 Ökonomisches Federgehäuse für Uhrwerk

Publications (2)

Publication Number Publication Date
EP2634649A1 true EP2634649A1 (de) 2013-09-04
EP2634649B1 EP2634649B1 (de) 2017-07-12

Family

ID=45756934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12157575.7A Active EP2634649B1 (de) 2012-02-29 2012-02-29 Ökonomisches Federgehäuse für Uhrwerk

Country Status (6)

Country Link
US (1) US8926168B2 (de)
EP (1) EP2634649B1 (de)
JP (1) JP5469758B2 (de)
CN (1) CN103293936B (de)
HK (1) HK1189280A1 (de)
RU (1) RU2609401C2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2570863B1 (de) * 2011-09-15 2017-11-08 Blancpain S.A. Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
EP2570864B1 (de) * 2011-09-15 2018-11-14 Blancpain S.A. Uhren-Federgehäuse mit reduziertem Durchmesser
EP2570861A1 (de) * 2011-09-15 2013-03-20 ETA SA Manufacture Horlogère Suisse Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
EP2746865B1 (de) * 2012-12-18 2016-03-02 ETA SA Manufacture Horlogère Suisse Federgehäuse einer Uhr
EP3067756B1 (de) * 2015-03-09 2017-11-22 Nivarox-FAR S.A. Schwenkbare einheit für eine uhr
JP6920027B2 (ja) * 2015-03-17 2021-08-18 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ 時計用リベット
EP3185089B1 (de) * 2015-12-21 2019-03-06 ETA SA Manufacture Horlogère Suisse Motormodul für armbanduhr

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US389852A (en) * 1888-09-18 Edwaed m
FR456971A (fr) * 1913-04-23 1913-09-09 Fabrique D Horlogerie Ci-Devant Fils De L Furtwang Mécanisme d'horlogerie avec barillets amovibles
CH91614A (fr) * 1920-10-08 1921-11-16 Zenith Montres Arbre de barillet démontable.
CH158295A (de) * 1931-09-19 1932-11-15 Amida S A Federtriebwerk.
CH212244A (fr) * 1939-08-21 1940-11-15 D Ebauches Eta S A Fabrique Mouvement d'horlogerie à barillet-moteur.
CH231733A (fr) * 1943-04-06 1944-04-15 Ebauchesfabrik Eta Ag Mouvement d'horlogerie à barillet-moteur.
FR1042548A (fr) * 1951-10-03 1953-11-02 Etablissements Parrenin Soc D Dispositif de montage des barillets des mouvements de montres, et autres
DE1872388U (de) * 1963-03-16 1963-05-16 Epple Kg Otero Uhren Vorrichtung fuer armbanduhren, insbesondere kleinuhren.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US202795A (en) * 1878-04-23 Improvement in clocks
US223673A (en) * 1880-01-20 Clock-movement
US1392676A (en) * 1915-09-04 1921-10-04 Helge A Borresen Mainspring-barrel for timepieces
US1339941A (en) * 1916-07-10 1920-05-11 Edward R Hills Watch-barrel
US1643403A (en) * 1916-07-10 1927-09-27 Edward R Hills Watch barrel
EP1582943B1 (de) * 2004-04-01 2008-09-03 Richemont International S.A. Uhrwerk mit mehreren Federhäusern

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US389852A (en) * 1888-09-18 Edwaed m
FR456971A (fr) * 1913-04-23 1913-09-09 Fabrique D Horlogerie Ci-Devant Fils De L Furtwang Mécanisme d'horlogerie avec barillets amovibles
CH91614A (fr) * 1920-10-08 1921-11-16 Zenith Montres Arbre de barillet démontable.
CH158295A (de) * 1931-09-19 1932-11-15 Amida S A Federtriebwerk.
CH212244A (fr) * 1939-08-21 1940-11-15 D Ebauches Eta S A Fabrique Mouvement d'horlogerie à barillet-moteur.
CH231733A (fr) * 1943-04-06 1944-04-15 Ebauchesfabrik Eta Ag Mouvement d'horlogerie à barillet-moteur.
FR1042548A (fr) * 1951-10-03 1953-11-02 Etablissements Parrenin Soc D Dispositif de montage des barillets des mouvements de montres, et autres
DE1872388U (de) * 1963-03-16 1963-05-16 Epple Kg Otero Uhren Vorrichtung fuer armbanduhren, insbesondere kleinuhren.

Also Published As

Publication number Publication date
CN103293936A (zh) 2013-09-11
HK1189280A1 (zh) 2014-05-30
CN103293936B (zh) 2016-02-03
US8926168B2 (en) 2015-01-06
RU2013108869A (ru) 2014-09-10
JP5469758B2 (ja) 2014-04-16
US20130223194A1 (en) 2013-08-29
JP2013181984A (ja) 2013-09-12
EP2634649B1 (de) 2017-07-12
RU2609401C2 (ru) 2017-02-01

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