EP2570862A1 - Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser - Google Patents

Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser Download PDF

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Publication number
EP2570862A1
EP2570862A1 EP11181352A EP11181352A EP2570862A1 EP 2570862 A1 EP2570862 A1 EP 2570862A1 EP 11181352 A EP11181352 A EP 11181352A EP 11181352 A EP11181352 A EP 11181352A EP 2570862 A1 EP2570862 A1 EP 2570862A1
Authority
EP
European Patent Office
Prior art keywords
spring
drum
barrel assembly
bung
barrel
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
EP11181352A
Other languages
English (en)
French (fr)
Other versions
EP2570862B1 (de
Inventor
Laurent Kaelin
Baptist Wyssbrod
Arthur Queval
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
Priority to EP11181352.3A priority Critical patent/EP2570862B1/de
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP12759423.2A priority patent/EP2756360B1/de
Priority to RU2014114788/28A priority patent/RU2559125C1/ru
Priority to US14/240,975 priority patent/US9033573B2/en
Priority to PCT/EP2012/067913 priority patent/WO2013037870A1/fr
Priority to JP2014530208A priority patent/JP5702509B2/ja
Priority to CN201280045269.0A priority patent/CN103797425B/zh
Priority to IN2738CHN2014 priority patent/IN2014CN02738A/en
Publication of EP2570862A1 publication Critical patent/EP2570862A1/de
Application granted granted Critical
Publication of EP2570862B1 publication Critical patent/EP2570862B1/de
Priority to HK14111175.8A priority patent/HK1197840A1/zh
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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • G04B1/165—Spring cylinder with friction transmission to the gearing (especially for Roskopf clockworks)
    • 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
    • G04B1/14—Mainsprings; Bridles therefor
    • G04B1/145—Composition and manufacture of the 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor

Definitions

  • the invention relates to a barrel assembly for a mechanical watch with reduced bung diameter.
  • the invention also relates to a watch movement comprising at least one such barrel assembly.
  • the invention also relates to a timepiece comprising at least one such movement and / or at least one such barrel assembly.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • one solution consists of a decrease in the diameter of the barrel shaft and the associated bung, so as to increase the space available in the drum. for the spring.
  • the ratio of the bead radius to the thickness of the spring is usually between 10 and 20, and the invention proposes to lower this ratio below 10, and preferably in the range between 5 and 10.
  • a ratchet is mounted axially on a barrel axis or on a bung, via a square, the ratchet being generally fixed by an axial screw.
  • the size of this screw and that of the square thus condition a minimum diameter of a pivoting surface.
  • a shoulder abutting with this pivoting surface limits axial fretting of the shaft or the bung relative to a plate or bridge carrying a stone or the like.
  • a diameter even greater than that of this shoulder is necessary for a pivoting guide surface of the drum on the shaft or on the bung, combined with a shoulder limiting axial fretting of the drum.
  • the respect of minimal sections of matter implies a quotation chain which results in a large size, difficult to reduce. In particular, it is not enough to reduce all the sizing, because the sections of material are then insufficient to ensure fatigue resistance.
  • the invention takes into account several solutions to achieve this reduction of the bung diameter.
  • a first solution is to ensure the frolicking between drum and cover by the mainspring, transferring to the spring this frolicking adjustment function, in particular by equipping the spring protruding areas, such as dots, more rolled areas wide, flange reported, or the like. It is then possible to remove the bearing shoulders of the drum and cover on the barrel shaft or on the bung.
  • a second solution is to make a bung in several parts, including two or three parts.
  • This solution makes it possible in particular to make a bung of diameter smaller than the pivoting diameter of the drum.
  • the plug is introduced through the bore of the drum.
  • a shaft or a bung in two parts, or more, facilitates the machining of hook of hook of the shell of the mainspring.
  • the bung may include, for the ratchet drive, a conventional square, or a thread. Or, in a non-limiting way, in a second variant
  • the bung can still include one or more washers or diameter catch rings for its guidance in platinum and bridge.
  • Another solution is to chase on the bung a setting washer of the drum-lid frog. This ring is mounted so as to avoid, for intervention on the barrel, any disassembly of a bridge.
  • the different variants proposed by the invention ensure ease of machining, ease of assembly, ease of disassembly, and control of axial debates between the various components and with respect to the bridges.
  • the invention relates to a watch-barrel assembly, comprising at least one torsion-mounted mainspring mounted torsionally between, at one end, a barrel drum, and at a second end a receiving surface that comprises a barrel plug coaxial with said drum about a pivot axis, characterized in that the maximum radius of said bung with respect to said pivot axis is less than nine times the maximum thickness of said spring, and further characterized in that said assembly barrel comprises, elsewhere than on said bond, means for adjusting the longitudinal slend, in the direction of said pivot axis, between said drum and said motor spring.
  • said receiving surface is a surface of revolution with respect to said pivot axis.
  • said surface of revolution is constituted by a clearance between two bearings, which define said maximum radius of said bung with respect to said pivot axis.
  • said clearance is cylindrical and at the same height as said spring which is centered between said bearing surfaces, which are flat and perpendicular to said pivot axis.
  • said clearance has a depth corresponding to twice the thickness of said spring.
  • said clearance has a height less than that of said spring which is centered obliquely between said bearing surfaces, which comprise oblique faces facing each other so as to define a support vee for singing surfaces; that includes said spring.
  • said spring is enclosed in a chamber delimited by said drum and a cover, and said barrel assembly comprises, elsewhere than on said bond, means for adjusting the longitudinal frust, in the direction of said pivot axis, between said cover and said motor spring.
  • said spring comprises at least one projecting zone arranged to cooperate in support with an internal face of said drum and / or with an internal face of a cover delimiting with said drum a chamber for accommodating said spring.
  • a said protruding zone comprises at least one lug at the level of at least one of the edges; that includes said spring.
  • a said protruding zone comprises at least one turn extended in height of said spring.
  • a said protruding zone comprises at least one attached flange, of height locally higher than that of said spring, and fixed thereto.
  • said drum comprises, on its largest internal diameter, a peripheral clearance between two surfaces for the support and the peripheral holding of said spring.
  • said peripheral clearance is cylindrical and at the same height as said spring which is centered between said bearing surfaces, which are flat and perpendicular to said pivot axis.
  • said peripheral clearance has a height less than that of said spring which is centered obliquely between said bearing surfaces, which comprise oblique faces facing each other so as to define a vee d ' support for singing surfaces that includes said spring.
  • said spring is fixed to said bung by friction.
  • said spring is welded or brazed to said bung so as to form a monoblock spring-binder subassembly.
  • the invention also relates to a watchmaking movement comprising at least one such barrel assembly for energy storage with an incorporated inlet, or else a ratchet integral with pivoting of said leap, or by a fixed toothing of a drum toothing. pivoting said drum, and an output constituted respectively, or by a toothing drum mounted integral pivoting said drum, or by a ratchet integral pivotally of said bung.
  • the invention also relates to a timepiece comprising at least one such clockwork movement and / or at least one such assembly for energy storage with an incorporated input, or else a ratchet mounted pivotally integral with said bung or by a toothing drum pivotally integral with said drum, and an outlet respectively constituted by a toothing drum mounted integral pivoting said drum, or by a ratchet integral pivotally of said bung.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • the invention relates to a mechanical watch cylinder with reduced bung diameter.
  • the invention relates to a watch barrel assembly 1 comprising at least one mainspring 2 of the barrel.
  • This spring 2 is mounted in torsion between, at a first end 21 a barrel 3, and at a second end 22 a receiving surface 5 that includes a barrel plug 4 coaxial with the drum 3 about a pivot axis D.
  • the maximum radius of the plug 4 with respect to the pivot axis D is less than nine times the maximum thickness of the spring 2.
  • this barrel assembly 1 comprises, other than on the plug 4, means for adjusting the longitudinal gap 6, in the direction of the pivot axis D, between the drum 3 and the spring 2
  • the Figures 2 and 3 show a bung included in an envelope radius R0 about the axis D.
  • the receiving surface 5 comprises a hook 41 for hooking the shell of the spring 2, a clearance 52 allows the attachment of the spring2 and facilitates the machining of the hook 41.
  • Spans 43 and 44 are provided to cooperate with stones mounted in the plates or bridges of the movement receiving the barrel assembly 1.
  • the square 42 is provided for the attachment of a ratchet 12.
  • the spans 45 and 46 cooperate respectively with a bore 35 of the drum 3 and a bore 75 of the cover 7.
  • the receiving surface 5 is a surface of revolution relative to the pivot axis D.
  • this receiving surface is a contact surface for fixing the spring 2 by welding on the bung 4, by a point 53 , or along a segment, preferably parallel to the pivot axis D, passing through such a point 53, as visible on the Figures 15A, 15B, 15C .
  • FIG 15A the spring 2 bears at point 53 on a cylindrical portion of the bung 4 of small width.
  • the spring 2 bears at the point 53 on a flat tangent to one of the bearing surfaces 45 or 46 of the drum 3 or the cover 7, here preferably to the bearing 45 intended to cooperate with the bore 35 of the drum 3.
  • the figure 15C illustrates a cylindrical bearing surface of the spring 2 wider than that of the figure 15A and which is locally confused with one of the bearing surfaces 45 or 46 for guiding the drum 3 or the cover 7, here preferably with the bearing surface 45 intended to cooperate with the bore 35 of the drum 3.
  • the surface of revolution 5 is formed by a clearance 8 of height h between two bearing surfaces 91, 92, belonging to flanges 47 and 48.
  • These bearing surfaces 91 and 92 define the maximum radius of the plug 4 with respect to the axis of preferably, this clearance 8 is cylindrical and at the same height as the spring 2 which is centered between the bearing surfaces 91, 92 which are flat and perpendicular to the pivot axis D.
  • the clearance 8 has a depth P corresponding to twice the thickness of the spring 2.
  • the clearance 8 has a height h less than that of the spring 2 which is centered obliquely between the bearing surfaces 91, 92, an upper flange 47 and a lower flange 48.
  • These bearing surfaces 91 and 92 comprise oblique faces , inclined at an angle ⁇ , facing each other so as to define a support v for the edge surfaces 27 and 28 that the spring 2 comprises.
  • the spring 2 is enclosed in a chamber 32 delimited by the drum 3 and a cover 7, and the barrel assembly 1 according to the invention comprises, other than on the bung 4, means for adjusting the longitudinal gap 6 in the direction of the pivot axis D between the cover 7 and the spring 2.
  • the Figure 1B illustrates an embodiment in which the drum comprises a shoulder 3A facing the spring 2, and can abut by a bearing surface 3B on a bearing surface 4B that includes the bung 4, and wherein the lid 7 has a shoulder 7A turned to spring 2, and can abut by a bearing surface 7B on a bearing surface 4C that includes the bung 4.
  • the spring 2 advantageously comprises at least one projecting zone 23 arranged to cooperate in support with an inner face 31 of the drum 3 or / and with an inner face 71 of a cover 7 delimiting with the drum 3 a chamber 32 for housing the spring 2.
  • such a protruding zone 23 comprises at least one lug 24 at the level of at least one of the edges 27; 28 of the spring 2. cThis protruding zone 23 is arranged to cooperate with an inner surface 31 of the drum 3, and / or with an inner surface 71 of the lid 7, and preferably with one and the other.
  • such a protruding zone 23 comprises at least one coil extended in height of the spring 2.
  • such a protruding zone 23 comprises at least one attached flange 26, locally higher than that of the spring 2, and fixed to the latter, for example by welding.
  • the drum 3 comprises, on its largest internal diameter, a peripheral clearance 36 between two upper and lower flanges 37 and 38, the edges of which, upper 27 and lower 28, respectively carry two bearing surfaces 33 and 34, oblique at an angle ⁇ , for the support and the peripheral support of the spring 2.
  • peripheral clearance 36 is cylindrical and at the same height as the spring 2 which is centered between the bearing surfaces 33, 34, which are flat and perpendicular to the pivot axis D.
  • the peripheral clearance 36 has a height less than that of the spring 2, which is centered obliquely between the bearing surfaces 33 and 34 which comprise obliquely facing faces towards each other. defining a support v for singing surfaces 27; 28 that includes the spring 2.
  • the barrel assembly 1 comprises a spring 2 which is fixed to the bung 4 by friction, the end of the spring 2 then preferably comprises a shoulder designed to hold the free end of the spring 2 during its winding .
  • the spring 2 is welded or brazed to the bung 4 so as to form a monoblock spring-binder subassembly.
  • This embodiment is particularly advantageous, economical, and a very easy assembly.
  • the invention also relates to a watchmaking movement 100 comprising at least one such barrel assembly 1 for storing energy with an incorporated input, or else a ratchet 12 pivotally mounted on the plug 4, or by a set of teeth drum 13 mounted pivotally mounted to the drum 3, and an outlet respectively formed, or by a toothing drum 13 mounted pivotally integral with the drum 3, or by a ratchet 12 mounted pivotally integral with the bung 4.
  • the invention also relates to a timepiece 1000 comprising at least one watch movement 100 and / or at least one such barrel assembly for storing energy with an incorporated input, or else a ratchet 12 mounted integral with pivoting of the bung 4, or by a set of drum toothing 13 pivotally mounted on the drum 3, and an outlet constituted respectively, or by a toothing drum 13 mounted pivotally integral with the drum 3, or by a ratchet 12 mounted pivotally integral with the bung 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Springs (AREA)
  • Gears, Cams (AREA)
EP11181352.3A 2011-09-15 2011-09-15 Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser Active EP2570862B1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP11181352.3A EP2570862B1 (de) 2011-09-15 2011-09-15 Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser
RU2014114788/28A RU2559125C1 (ru) 2011-09-15 2012-09-13 Узел пружинного барабана часового механизма уменьшенного диаметра
US14/240,975 US9033573B2 (en) 2011-09-15 2012-09-13 Timepiece barrel assembly with reduced core diameter
PCT/EP2012/067913 WO2013037870A1 (fr) 2011-09-15 2012-09-13 Ensemble barillet d'horlogerie a diametre de bonde reduit
EP12759423.2A EP2756360B1 (de) 2011-09-15 2012-09-13 Federgehäuse für eine uhr mit kleinem kerndurchmesser
JP2014530208A JP5702509B2 (ja) 2011-09-15 2012-09-13 コア直径が低減された時計の香箱アセンブリ
CN201280045269.0A CN103797425B (zh) 2011-09-15 2012-09-13 具有减小的芯部直径的钟表发条盒组件
IN2738CHN2014 IN2014CN02738A (de) 2011-09-15 2012-09-13
HK14111175.8A HK1197840A1 (zh) 2011-09-15 2014-11-04 具有減小的芯部直徑的鐘錶發條盒組件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11181352.3A EP2570862B1 (de) 2011-09-15 2011-09-15 Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser

Publications (2)

Publication Number Publication Date
EP2570862A1 true EP2570862A1 (de) 2013-03-20
EP2570862B1 EP2570862B1 (de) 2014-03-05

Family

ID=46851979

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11181352.3A Active EP2570862B1 (de) 2011-09-15 2011-09-15 Uhren-Federgehäusebaugruppe mit reduziertem Bunddurchmesser
EP12759423.2A Active EP2756360B1 (de) 2011-09-15 2012-09-13 Federgehäuse für eine uhr mit kleinem kerndurchmesser

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12759423.2A Active EP2756360B1 (de) 2011-09-15 2012-09-13 Federgehäuse für eine uhr mit kleinem kerndurchmesser

Country Status (8)

Country Link
US (1) US9033573B2 (de)
EP (2) EP2570862B1 (de)
JP (1) JP5702509B2 (de)
CN (1) CN103797425B (de)
HK (1) HK1197840A1 (de)
IN (1) IN2014CN02738A (de)
RU (1) RU2559125C1 (de)
WO (1) WO2013037870A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105204314A (zh) * 2014-06-30 2015-12-30 劳力士有限公司 计时器发条盒

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2570861A1 (de) * 2011-09-15 2013-03-20 ETA SA Manufacture Horlogère Suisse Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
EP2605087B1 (de) * 2011-12-13 2017-07-26 ETA SA Manufacture Horlogère Suisse Uhrmoduleinheit mit funktionellen Modulen
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
EP3176281B1 (de) * 2015-12-02 2019-03-27 Nivarox-FAR S.A. Verfahren zur verbesserung einer eisen-nickel-chrom-mangan-legierung für uhrenanwendungen
JP7133909B2 (ja) * 2016-07-04 2022-09-09 ロレックス・ソシエテ・アノニム 時計用組立体の製造方法、及び該製造方法により得られる時計用組立体
EP3499316A1 (de) * 2017-12-15 2019-06-19 Nivarox-FAR S.A. Schliesszylinderfeder für ein uhrwerk einer uhr, und herstellungsverfahren einer solchen feder
EP3872576B1 (de) * 2020-02-25 2024-02-21 ETA SA Manufacture Horlogère Suisse Federgehäuse eines uhrwerks mit verdrehter welle

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CH704391B1 (fr) * 2009-12-09 2016-01-29 Rolex Sa Procédé de fabrication d'un ressort pour pièce d'horlogerie.
EP2570863B1 (de) * 2011-09-15 2017-11-08 Blancpain S.A. Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
EP2570861A1 (de) * 2011-09-15 2013-03-20 ETA SA Manufacture Horlogère Suisse Uhren-Federgehäuse mit reduziertem Durchmesser des Bundes
EP2570864B1 (de) * 2011-09-15 2018-11-14 Blancpain S.A. Uhren-Federgehäuse mit reduziertem Durchmesser

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US182629A (en) * 1876-09-26 Improvement in watch-barrels
US1110061A (en) * 1914-04-02 1914-09-08 Herbert Kienzle Removable spring-housing for clocks.
CH213484A (de) * 1940-02-15 1941-02-15 Landis & Gyr Ag Rutschkupplung in Federgehäusen.
CH319631A (fr) * 1954-09-27 1957-02-28 Felsa S A Fabrique D Ebauches Montre à marche de longue durée
CH341764A (fr) * 1957-06-13 1959-10-15 Auge & Cie Ets Ressort moteur
FR1473744A (fr) * 1966-04-04 1967-03-17 Ghielmetti S A Boîtier de ressort pour montres à remontage automatique
GB1162296A (en) * 1966-04-30 1969-08-20 Citizen Watch Co Ltd Improvements in and relating to Barrel Springs for Timepieces
DE1984988U (de) * 1968-01-20 1968-05-02 Foerster Bernhard Fa Federhaus fuer uhrwerke.
US3564839A (en) * 1969-06-02 1971-02-23 Timex Corp Watch mainspring barrel
CH568596B5 (fr) * 1969-11-13 1975-10-31 Vimetal Sa Ressort-moteur pour pièce d’horlogerie

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105204314A (zh) * 2014-06-30 2015-12-30 劳力士有限公司 计时器发条盒
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
CN105204314B (zh) * 2014-06-30 2020-02-07 劳力士有限公司 计时器发条盒
EP3974913A1 (de) * 2014-06-30 2022-03-30 Rolex Sa Federgehäuse für uhr

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CN103797425B (zh) 2016-08-17
HK1197840A1 (zh) 2015-02-18
CN103797425A (zh) 2014-05-14
EP2756360B1 (de) 2015-05-27
EP2570862B1 (de) 2014-03-05
WO2013037870A1 (fr) 2013-03-21
EP2756360A1 (de) 2014-07-23
IN2014CN02738A (de) 2015-07-03
JP5702509B2 (ja) 2015-04-15
RU2559125C1 (ru) 2015-08-10
JP2014526691A (ja) 2014-10-06
US9033573B2 (en) 2015-05-19
US20140211596A1 (en) 2014-07-31

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