WO2013037870A1 - Ensemble barillet d'horlogerie a diametre de bonde reduit - Google Patents
Ensemble barillet d'horlogerie a diametre de bonde reduit Download PDFInfo
- Publication number
- WO2013037870A1 WO2013037870A1 PCT/EP2012/067913 EP2012067913W WO2013037870A1 WO 2013037870 A1 WO2013037870 A1 WO 2013037870A1 EP 2012067913 W EP2012067913 W EP 2012067913W WO 2013037870 A1 WO2013037870 A1 WO 2013037870A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spring
- drum
- barrel assembly
- bung
- barrel
- Prior art date
Links
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 watch-barrel assembly, comprising at least one barrel-drive spring mounted between, at one end, a barrel drum, and at a second end a receiving surface that comprises a barrel plug coaxial with said drum around of a pivot axis.
- 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.
- Document CH 319 631 in the name of FELSA SA describes a double barrel, and the way in which the frolicking of each of the drums is limited.
- the frog of a lower drum is limited on the upper side by a flange of a sleeve, which is pushed towards a shoulder of the barrel shaft, by a nut screwed on the same shaft; and, on the lower side, by a bottom of a bung integral in pivoting of the barrel shaft by a flat.
- the length of the lower bearing of the barrel shaft, and that of a barrel of the drum determine the frolicking of the drum, in relation to these flange and bottom surfaces.
- US 3,564,839 in the name of WUTHRICH discloses a barrel which has a thread on the bridge for supporting the drum, and a barrel drum.
- the lid is a simple sheet placed on the plate, without connection with the shaft or with the drum.
- the shaft has two shoulders, one bearing on this bung, the other intended to cooperate in support with the drum barrel.
- the invention takes into account several solutions to achieve this reduction of the bung diameter.
- An important constraint is to ensure the disassembly of the assembly, for a possible exchange of the mainspring or the complete barrel.
- 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.
- Yet another solution is to provide pivoting in the bridges for the drum and / or the cover, instead of performing this pivoting at the barrel shaft or the plug.
- both the drum and the lid are pivoted in a plate and 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 barrel drive spring mounted between, at one end a barrel drum, and at a second end a receiving surface that includes a plug of barrel coaxial with said drum about a pivot axis, characterized in that said spring is made of a cobalt-nickel-chromium-based multiphase alloy comprising from 44 to 46% of cobalt, from 20 to 22% of nickel, 17 to 19% chromium, 4 to 6% iron, 3 to 5% tungsten, 3 to 5% molybdenum, 0 to 2% titanium, 0 to 1% beryllium, and modulus of Young between 200 and 240 GPa and a shear modulus between 80 and 100 GPa, and having a width / thickness ratio of between 9 and 21, and in that the maximum radius of said bung, made of steel or stainless steel, with respect to said pivot axis is less than nine times the thickness eur a maximum of said spring, and further characterized in that said barrel assembly
- said means for limiting said longitudinal gap between said drum and said spring are constituted by either at least one lug at at least one of the edges that comprises said spring, or by a clearance device that includes said drum on its largest inside diameter, said peripheral clearance being between two oblique bearing surfaces for the support and the peripheral holding of said spring.
- 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 mounted toothing drum pivotally attached to 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.
- FIG. 1 shows schematically and in section in a plane passing through its pivot axis, a watch cylinder
- FIG. 1A is a schematic view in section in a plane passing through its pivot axis of a cylinder according to the invention
- FIG. 1 B shows, schematically and in section in a plane passing through its pivot axis, another variant of the cylinder according to the invention
- FIG. 2 schematically shows in perspective a barrel plug according to the invention
- FIG. 3 is a diagrammatic perspective view of a bung variant according to the invention, comprising a retaining clearance of the mainspring,
- FIG. 4 is a diagrammatic plan view of the plug of FIG.
- FIGS. 5A, 5B, and 5C show, schematically, respectively in elevation, in section, and in plan, a bung with a spring mounted by friction, and the end of this spring presented flat,
- FIGS. 6A, 6B, and 6C show, schematically, respectively in elevation, in section, and in plan, a bung with another type of spring mounted by friction, and the end of this spring presented flat,
- FIG. 7 is a partial schematic representation of a barrel according to the invention, in a plane passing through its pivot axis, special arrangement of the bung at the internal receiving surface of the spring,
- FIG. 8 is a diagrammatic, partial, sectional view in a plane passing through its axis of pivoting, in its right part a cylinder according to the invention, with a spring provided with pins according to the invention, and FIG. 8A represents, flat, a detail of this spring,
- FIG. 9 schematically and in perspective shows a spring according to the invention with a locally wider lamination projecting
- FIG. 10 shows a detail of this spring
- FIG. 11 shows schematically and in perspective a spring according to the invention with a projecting flange projecting
- FIG. 12 shows a detail of this spring
- FIG. 13 shows, schematically, partially, and in section in a plane passing through its pivot axis, a cylinder according to the invention, with a particular arrangement of the largest diameter of the barrel at the receiving surface external spring,
- FIG. 14 represents, in the form of a block diagram, a watch movement comprising a barrel assembly according to the invention, and a timepiece comprising this movement and a barrel assembly according to the invention;
- 15A, 15B, and 15C show, in perspective and in perspective, different variants of a bung according to the invention arranged for the welding of the mainspring,
- FIG. 16 shows, in the form of a block diagram, a watch movement comprising a barrel assembly according to the invention, and a timepiece comprising this movement and a barrel assembly according to the invention.
- 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 conventionally mounted between, at a first end 21, a barrel drum 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.
- this spring 2 is made of a cobalt-nickel-chromium-based multiphase alloy comprising from 44 to 46% of cobalt, from 20 to 22% of nickel, from 17 to 19% of chromium, from 4 to 6% of iron, 3 to 5% of tungsten, 3 to 5% of molybdenum, 0 to 2% of titanium, 0 to 1% of beryllium, and Young's modulus of between 200 and 240 GPa and a shear modulus between 80 and 100 GPa.
- This spring 2 has a width / thickness ratio of between 3 and 23, and more particularly between 9 and 21.
- the maximum radius of the bung 4, made of steel or stainless steel, relative to the pivot axis D is less than nine times the maximum thickness of the spring 2.
- this barrel assembly 1 comprises, at the level of the spring 2 or the drum 3, means for limiting the longitudinal gap 6, in the direction of the pivot axis D, between the drum 3 and the motor spring 2.
- the spring 2 advantageously comprises at least one projecting zone 23 arranged to cooperate in support with an internal face 31 of the drum 3 or / and with an internal 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
- This spring region 23 is arranged to cooperate with an inner surface 31 of the drum 3, and / or with an inner surface 71 of the cover 7, and preferably with both.
- the means for limiting the longitudinal gap 6 between the drum 3 and the spring 2 are thus constituted, or else by at least one lug 24 at the level of at least one of the edges 27, 28, that includes the spring 2, or by a peripheral clearance 36 that includes the drum 3 on its largest inside diameter, this peripheral clearance 36 being between two surfaces 33, 34, oblique for the support and the peripheral maintenance of spring 2.
- the spring 2 is enclosed in a chamber 32 delimited by the drum 3 and a 7, and the barrel assembly 1 according to the invention comprises, other than on the plug 4, means for adjusting the longitudinal slab 6, in the direction of the pivot axis D, between the cover 7 and the spring 2.
- this at least one lug 24 of the spring 2 is arranged to cooperate in support with an inner face 31 of the drum 3 and / or with an inner face 71 of a lid 7 delimiting with the drum 3 a chamber 32 for housing the spring 2.
- such a protruding zone 23, or in particular this lug 24, comprises at least one coil extended in height of the spring 2.
- such a protruding zone 23, or in particular this lug 24 comprises at least one attached flange 26, of locally greater height than that of the turns of the spring 2, and which is attached 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, the edges of which, upper 27 and lower 28, respectively carry two spans 33 and 34, oblique at an angle a, for the support and the peripheral support of the spring 2.
- the means for limiting the longitudinal gap 6 between the drum 3 and the spring 2 are constituted by a peripheral clearance 36 that comprises the drum 3 on its largest inside diameter, this peripheral clearance 36 being between two bearing surfaces 33, 34, 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, 34, which comprise oblique faces turned toward each other so as to define a support v for singing surfaces 27,28, that includes the spring 2.
- the spring 2 is held elastically without a hook around the receiving surface 5 which is a surface of revolution with respect to the pivot axis D.
- FIGS. 2 and 3 show a plug included in an envelope of radius R0 about the axis D.
- the reception surface 5 comprises a hook 41 for hooking the shell of the spring 2, a clearance 52 allows the spring to be hooked 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 bearing surfaces 45 and 46 cooperate respectively with a bore 35 of the drum 3 and a bore 75 of the lid 7.
- the receiving surface 5 is a surface of revolution with respect to the pivot axis D.
- this receiving surface is a surface of contact for fixing the spring 2 by welding on the plug 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 Figures 15A, 15B, 15C.
- FIG. 15A illustrates a cylindrical bearing surface of the spring 2 which is wider than that of FIG. 15A, and which is locally coincident with one of the bearing surfaces 45 or 46 for guiding the drum 3 or cover 7, here preferably with the bearing surface 45 intended to cooperate with the bore 35 of the drum 3.
- FIG. 15C illustrates a cylindrical bearing surface of the spring 2 which is wider than that of FIG. 15A, and which is locally coincident with one of the bearing surfaces 45 or 46 for guiding the drum 3 or cover 7, here preferably with the bearing surface 45 intended to cooperate with the bore 35 of the drum 3.
- the receiving surface 5 of the spring has, from the welding point 53 or from a segment of welding passing through the point 53 and parallel to the pivot axis D, a helical section, so that after the first turn, the spring comes in superposition on itself without inflection or break slope.
- the revolution surface 5 is constituted 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 bung 4 relative to the pivot axis D.
- 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 bearing surfaces 91, 92, of an upper flange 47 and of 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 edge surfaces 27 and 28 that the spring 2 comprises.
- FIG. 1B illustrates an embodiment in which the drum comprises a shoulder 3A turned towards the spring 2, and can come to rest by a bearing surface 3B on a bearing surface 4B that the bung 4 comprises, and where the lid 7 comprises a shoulder 7A turned towards the spring 2, and can come to bear by a bearing surface 7B on a bearing surface 4C that includes the bung 4.
- 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 in jogging the free end of the spring 2 during its winding.
- the spring 2 forms with the bung 4 a welded or brazed monoblock spring-welded subassembly, or the like. 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 such watch movement 100 and / or at least one such barrel assembly for energy storage with an incorporated entrance, or by a ratchet 12 mounted pivotally mounted on the bung 4, or by a toothing drum 13 mounted pivotally integral with 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)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12759423.2A EP2756360B1 (fr) | 2011-09-15 | 2012-09-13 | Ensemble barillet d'horlogerie a diametre de bonde reduit |
US14/240,975 US9033573B2 (en) | 2011-09-15 | 2012-09-13 | Timepiece barrel assembly with reduced core diameter |
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 |
RU2014114788/28A RU2559125C1 (ru) | 2011-09-15 | 2012-09-13 | Узел пружинного барабана часового механизма уменьшенного диаметра |
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 |
IN2738CHN2014 IN2014CN02738A (fr) | 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11181352.3 | 2011-09-15 | ||
EP11181352.3A EP2570862B1 (fr) | 2011-09-15 | 2011-09-15 | Ensemble barillet d'horlogerie à diamètre de bonde réduit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013037870A1 true WO2013037870A1 (fr) | 2013-03-21 |
Family
ID=46851979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/067913 WO2013037870A1 (fr) | 2011-09-15 | 2012-09-13 | Ensemble barillet d'horlogerie a diametre de bonde reduit |
Country Status (8)
Country | Link |
---|---|
US (1) | US9033573B2 (fr) |
EP (2) | EP2570862B1 (fr) |
JP (1) | JP5702509B2 (fr) |
CN (1) | CN103797425B (fr) |
HK (1) | HK1197840A1 (fr) |
IN (1) | IN2014CN02738A (fr) |
RU (1) | RU2559125C1 (fr) |
WO (1) | WO2013037870A1 (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2570861A1 (fr) * | 2011-09-15 | 2013-03-20 | ETA SA Manufacture Horlogère Suisse | Ensemble barillet d'horlogerie à diamètre de bonde réduit |
EP2605087B1 (fr) * | 2011-12-13 | 2017-07-26 | ETA SA Manufacture Horlogère Suisse | Ensemble modulaire d'horlogerie à modules fonctionnels |
EP2834712B1 (fr) * | 2012-04-04 | 2021-11-24 | Rolex Sa | Barillet comprenant un ressort de barillet et un arbre de barillet |
EP3974913A1 (fr) * | 2014-06-30 | 2022-03-30 | Rolex Sa | Barillet pour pièce d'horlogerie |
EP3176281B1 (fr) * | 2015-12-02 | 2019-03-27 | Nivarox-FAR S.A. | Procede d'amelioration d'un alliage fer-nickel-chrome-manganese pour des applications horlogeres |
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 (fr) * | 2017-12-15 | 2019-06-19 | Nivarox-FAR S.A. | Ressort de barillet pour un mouvement horloger d'une pièce d'horlogerie et procédé de fabrication d'un tel ressort |
EP3872576B1 (fr) * | 2020-02-25 | 2024-02-21 | ETA SA Manufacture Horlogère Suisse | Barillet d'horlogerie a arbre vrille |
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EP2570861A1 (fr) * | 2011-09-15 | 2013-03-20 | ETA SA Manufacture Horlogère Suisse | Ensemble barillet d'horlogerie à diamètre de bonde réduit |
EP2570864B1 (fr) * | 2011-09-15 | 2018-11-14 | Blancpain S.A. | Barillet d'horlogerie à diamètre de bonde réduit |
EP2570863B1 (fr) * | 2011-09-15 | 2017-11-08 | Blancpain S.A. | Ensemble barillet d'horlogerie à diamètre de bonde réduit |
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2011
- 2011-09-15 EP EP11181352.3A patent/EP2570862B1/fr active Active
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2012
- 2012-09-13 CN CN201280045269.0A patent/CN103797425B/zh active Active
- 2012-09-13 IN IN2738CHN2014 patent/IN2014CN02738A/en unknown
- 2012-09-13 US US14/240,975 patent/US9033573B2/en active Active
- 2012-09-13 JP JP2014530208A patent/JP5702509B2/ja active Active
- 2012-09-13 WO PCT/EP2012/067913 patent/WO2013037870A1/fr active Application Filing
- 2012-09-13 EP EP12759423.2A patent/EP2756360B1/fr active Active
- 2012-09-13 RU RU2014114788/28A patent/RU2559125C1/ru active
-
2014
- 2014-11-04 HK HK14111175.8A patent/HK1197840A1/zh unknown
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
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US182629A (en) * | 1876-09-26 | Improvement in watch-barrels | ||
US647819A (en) * | 1899-08-30 | 1900-04-17 | Joseph B Eagleston | Wire-fence machine. |
US647760A (en) * | 1900-02-02 | 1900-04-17 | John N Quinn | Cushion device for log-turners. |
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. |
CH279670A (fr) * | 1944-12-12 | 1951-12-15 | Company Elgin National Watch | Ressort moteur, notamment pour mouvement de montre. |
US2524660A (en) * | 1947-05-03 | 1950-10-03 | Elgin Nat Watch Co | Watch mainspring |
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 |
US3928085A (en) * | 1972-05-08 | 1975-12-23 | Suwa Seikosha Kk | Timepiece mainspring of cobalt-nickel base alloys having high elasticity and high proportional limit |
DE102009014442A1 (de) * | 2009-03-26 | 2010-09-30 | Vacuumschmelze Gmbh & Co. Kg | CoNiCr-Legierung, Feder aus einer CoNiCr-Legierung und Verfahren zur Herstellung einer Feder aus einer CoNiCr-Legierung |
Also Published As
Publication number | Publication date |
---|---|
EP2756360B1 (fr) | 2015-05-27 |
US20140211596A1 (en) | 2014-07-31 |
JP5702509B2 (ja) | 2015-04-15 |
RU2559125C1 (ru) | 2015-08-10 |
CN103797425A (zh) | 2014-05-14 |
IN2014CN02738A (fr) | 2015-07-03 |
JP2014526691A (ja) | 2014-10-06 |
EP2570862B1 (fr) | 2014-03-05 |
HK1197840A1 (zh) | 2015-02-18 |
EP2570862A1 (fr) | 2013-03-20 |
CN103797425B (zh) | 2016-08-17 |
EP2756360A1 (fr) | 2014-07-23 |
US9033573B2 (en) | 2015-05-19 |
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