EP2881804A2 - Spiralklötzchen für Uhr - Google Patents
Spiralklötzchen für Uhr Download PDFInfo
- Publication number
- EP2881804A2 EP2881804A2 EP14194961.0A EP14194961A EP2881804A2 EP 2881804 A2 EP2881804 A2 EP 2881804A2 EP 14194961 A EP14194961 A EP 14194961A EP 2881804 A2 EP2881804 A2 EP 2881804A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- hairspring
- spiral
- thickness
- reference thickness
- 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
Links
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 31
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 28
- 230000009466 transformation Effects 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 229910010977 Ti—Pd Inorganic materials 0.000 description 4
- 229910001000 nickel titanium Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229920000431 shape-memory polymer Polymers 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 229910018167 Al—Be Inorganic materials 0.000 description 2
- 229910017518 Cu Zn Inorganic materials 0.000 description 2
- 229910017535 Cu-Al-Ni Inorganic materials 0.000 description 2
- 229910017755 Cu-Sn Inorganic materials 0.000 description 2
- 229910017752 Cu-Zn Inorganic materials 0.000 description 2
- 229910017773 Cu-Zn-Al Inorganic materials 0.000 description 2
- 229910017927 Cu—Sn Inorganic materials 0.000 description 2
- 229910017943 Cu—Zn Inorganic materials 0.000 description 2
- 229910018643 Mn—Si Inorganic materials 0.000 description 2
- 229910003310 Ni-Al Inorganic materials 0.000 description 2
- 229910018195 Ni—Co—Ti Inorganic materials 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229910004353 Ti-Cu Inorganic materials 0.000 description 2
- 229910003086 Ti–Pt Inorganic materials 0.000 description 2
- 229910011212 Ti—Fe Inorganic materials 0.000 description 2
- 229910007610 Zn—Sn Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000636 poly(norbornene) polymer Polymers 0.000 description 2
- 239000012781 shape memory material Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
- G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
-
- 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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
-
- 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
- G04B15/00—Escapements
- G04B15/06—Free escapements
-
- 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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
-
- 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
- G04B19/00—Indicating the time by visual means
- G04B19/04—Hands; Discs with a single mark or the like
- G04B19/044—Mounting and setting of the hands on the axle
-
- 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
- G04B18/00—Mechanisms for setting frequency
- G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
- G04B18/026—Locking the hair spring in the indexing device, e.g. goupille of the raquette
-
- 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
- Y10T29/49579—Watch or clock making
- Y10T29/49581—Watch or clock making having arbor, pinion, or balance
Definitions
- the invention relates to a clockwork studon comprising a housing for receiving a hairspring with two opposite side surfaces remote from a reference thickness.
- the invention further relates to an assembly comprising a hairspring which comprises two opposite side surfaces remote from a reference thickness, and such a piton sized to receive said hairspring.
- the invention also relates to a watch movement comprising at least one such assembly or such piton.
- the invention also relates to a timepiece comprising at least one such movement and / or at least one such set and / or such a peak.
- the invention also relates to a method of fixing a spiral to a peak
- the invention relates to the field of mechanical clockwork oscillator mechanisms, comprising a spiral spring.
- Mechanical clockwork oscillator mechanisms comprising a spiral spring, generally comprise a pin for fixing the outer end of the spiral spring.
- the attachment of the hairspring to the pin is usually done by gluing, which is not perfectly reproducible, and can lead to pollution of the watch movement.
- the invention proposes to provide an alternative to the gluing of the hairspring in the eye, and to replace it with a reproducible fixation of the hairspring, less dependent on the operator performing the assembly.
- the invention relates to a clockwork studon comprising a housing for receiving a hairspring with two opposite lateral surfaces remote from a reference thickness, characterized in that said pin comprises, around said housing, at least a monolithic component made of memory alloy of form having at least two tabs together defining an air gap and each arranged to bear on one of said opposite side surfaces of said spiral, and in that in the free state, the minimum width of said gap is greater than the maximum value of said reference thickness when said component is in an open position corresponding to a martensitic structure, and in that the maximum width of said air gap is less than the minimum value of said reference thickness when said component is in a closed position corresponding to a austenitic structure.
- the invention also relates to an assembly comprising a spiral which comprises two opposite lateral surfaces distant from a reference thickness, and such a stud sized to receive said spiral, characterized in that said spiral locally comprises at least one zone of less thickness of which the minimum thickness is said reference thickness for which said peak is designed and which is framed by thick areas whose minimum thickness is greater than said reference thickness.
- the invention also relates to a watch movement comprising at least one such assembly or such piton.
- the invention also relates to a timepiece comprising at least one such movement and / or at least one such set and / or such a peak.
- Mechanical clock oscillator mechanisms comprising a spiral spring whose outer end is fixed to a pin, itself attached to a plate, a bridge, a cock or the like.
- the invention proposes to provide a reproducible fixation of the hairspring, less dependent on the operator performing the assembly, and preferably achievable with automated production means such as a robot assembly or the like, performing the gripping and the relative positioning of the components between them, to which this robot component is capable of selectively applying heating or cooling in a localized and almost instantaneous manner.
- the invention thus relates to a clock 1 having a housing 2 for receiving a hairspring 3, this hairspring 3 conventionally comprising two opposite side surfaces 31, 32, distant from a reference thickness ER.
- this stud 1 comprises, around the housing 2, at least one monolithic component 8 of shape memory alloy.
- the shape memory alloy may be chosen from different families of materials, in particular and without limitation heat-activated shape memory alloys, magnetically activated shape memory alloys, or shape memory polymers.
- the invention is described herein in a particular nonlimiting example with a thermally activated shape memory alloy.
- a so-called martensitic state and a so-called austenitic state which correspond to different structuring of the material, and to spatial distributions of the different atoms in space, are generally distinguished.
- This component 8 comprises at least two lugs 11, 12, which together define an air gap E and each arranged to bear on one of the opposite lateral surfaces 31, 32, of such a hairspring 3.
- the minimum width of this gap E is greater than the maximum value of the reference thickness ER when the component 8 is in a open position corresponding to a martensitic structure, and the maximum width of the air gap E is less than the minimum value of the reference thickness ER when the component 8 is in a closed position corresponding to an austenitic structure.
- the Figures 1 and 2 illustrate these two open and closed positions of the component 8 around the hairspring 3.
- the lugs 11 and 12 pinch the hairspring 3, preferably with a bearing on the entire height of the lateral surfaces 31 and 32 of the hairspring, and over the entire thickness L piton 1.
- the housing 2 of the piton 1 has an axial abutment bearing surface 9 arranged to receive a support 33 of a hairspring 3.
- piton 1 is monolithic with component 8.
- the shape memory alloy is chosen so that the piton 1 supports, without significant modification of its clamping, a minimum service temperature TSMIN of -20 ° C.
- the shape memory alloy is chosen so that the piton 1 supports, without significant modification of its clamping, a maximum operating temperature TSMAX of + 70 ° C.
- the invention also relates to an assembly 10 comprising such a hairspring 3 which comprises two opposite lateral surfaces 31, 32, remote by a reference thickness ER, and such a pin 1 sized to receive this hairspring 3.
- the spiral 3) locally comprises at least one zone of lesser thickness, the minimum thickness of which is the reference thickness ER, for which the stud 1 is designed, and which is framed by zones of great thickness 35 of which minimum thickness is greater than the reference thickness ER.
- the spiral 3 comprises an alternation of such areas of lesser thickness and such thick zones 35, for the adjustment of the active length of the spiral 3 by the discrete cooperation of the stud 1 with one of these zones.
- the hairspring 3 can, again, be graduated at these different positions of adjustment in active length.
- each zone of lesser thickness 30 has a length substantially equal to, slightly greater than, the thickness of the lugs 11, 12, of the peak 1.
- these zones of lesser thickness 30 all have the same profile, and in that the lugs 11, 12, of the piton 1 each have a complementary profile of the spiral profile 3 which faces them in each zone of lesser thickness 30.
- the invention also relates to a watch movement 100 comprising at least one such stud 1, or / and such an assembly 10.
- the invention also relates to a timepiece 200 comprising at least one such movement 100, and / or at least one such pin 1, and / or such an assembly 10.
- the objective is not to go below the transformation temperature Ms during the service, so as to avoid modifying the clamping by a possible phase transformation, even partial (that is to say without necessarily reaching the fourth transformation temperature Mf at which the transformation of austenitic structure into a martensitic structure is completely realized).
- the shape memory alloy constituting component 8 is selected to allow a minimum operating temperature TSMIN of -20 ° C.
- the shape memory alloy constituting the component 8 is chosen so as to allow a maximum operating temperature TSMAX of + 70 ° C.
- the processing and fixing temperatures must be low enough to prevent loosening of the hairspring if the watch in which it is incorporated remains cold.
- the component is produced in one of the "Nitinol" nickel titanium alloys, in a first form at a temperature below -40 ° C., and in a second form at an ambient temperature of between -20 ° C. and + 70 ° C, this second form to ensure the clamping required for a correct and controlled friction of the spiral.
- Medical tools, and in particular orthodontics allow very rapid cooling to -50 ° C or -60 ° C, or even lower temperatures, to bring the component in the first form that allows its threading on the piton body. It is sufficient to reduce the assembly to the temperature of the assembly room, typically close to + 20 ° C, to ensure the tightening of the component in its second form, and immediately perform the friction torque measurement test to validate the component for its direct use in a motion.
- the invention also relates to an assembly method that can be easily automated with a manipulator robot comprising heating means or cooling in a localized and almost instantaneous manner, by which different successive steps are carried out.
- a first phase of opening deformation of the component 8 is carried out in a martensitic structure, then cooling or heating of the shape memory alloy component 8 is carried out, then the spiral 3 is inserted into the housing 2 and position them relative to each other in the proper position.
- the temperatures M s and M f must be low enough not to allow the hairspring to loosen if the watch remains cold. Ideally A s and A f are around 20 ° C to 30 ° C but can also take different values.
- the piton in its storage state, before mounting the hairspring may or may be parallel branches in which case a spacer operation is performed just before mounting, or be divergent branches, in which case it is only y present the hairspring in position. In either case, the spacing must be the result of prior deformation, so that the shape memory allows to find the pre-deformation state.
- the so-called “austenitic” and “martensitic” phases do not exist as such, and the transition occurs at the molecular level at a transition temperature.
- This temperature may correspond to the glass transition temperature of one of the blocks or to its melting temperature.
- shape memory materials that can be used for the implementation of the invention may, again, be heat-activated shape memory alloys and / or magnetically activated.
- the clamping force of the stud on the spiral is precisely controlled in a perfectly reproducible assembly.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Springs (AREA)
- Toys (AREA)
- Heat Treatment Of Steel (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Electromechanical Clocks (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14194961.0A EP2881804B1 (de) | 2013-12-09 | 2014-11-26 | Spiralfeder-spiralklötzchen-einheit für uhrwerk |
US14/873,533 US9367038B1 (en) | 2013-12-09 | 2015-10-02 | Balance spring stud for a timepiece |
JP2015216431A JP6018686B2 (ja) | 2014-11-26 | 2015-11-04 | 計時器のためのバランスばねスタッド |
CN201510829127.9A CN105629698B (zh) | 2014-11-26 | 2015-11-25 | 用于钟表的游丝外桩 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13196153.4A EP2881803B1 (de) | 2013-12-09 | 2013-12-09 | Minutenrohr einer Uhr |
EP14194961.0A EP2881804B1 (de) | 2013-12-09 | 2014-11-26 | Spiralfeder-spiralklötzchen-einheit für uhrwerk |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2881804A2 true EP2881804A2 (de) | 2015-06-10 |
EP2881804A3 EP2881804A3 (de) | 2015-08-26 |
EP2881804B1 EP2881804B1 (de) | 2017-08-02 |
Family
ID=56046786
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14194961.0A Active EP2881804B1 (de) | 2013-12-09 | 2014-11-26 | Spiralfeder-spiralklötzchen-einheit für uhrwerk |
Country Status (4)
Country | Link |
---|---|
US (1) | US9367038B1 (de) |
EP (1) | EP2881804B1 (de) |
JP (1) | JP6018686B2 (de) |
CN (1) | CN105629698B (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3432083A1 (de) * | 2016-02-25 | 2019-01-23 | ETA SA Manufacture Horlogère Suisse | Spiralfeder für mechanisches uhrwerk |
EP3252542B1 (de) * | 2016-06-01 | 2022-05-18 | Rolex Sa | Teil zur befestigung einer unruhspirale |
US20220155726A1 (en) * | 2018-09-03 | 2022-05-19 | Rolex Sa | Method for producing friction by indenting |
EP4411489A1 (de) * | 2023-01-31 | 2024-08-07 | ETA SA Manufacture Horlogère Suisse | Vorrichtung zum einstellen und einstellen der aktiven länge einer spiralfeder für uhrwerk, und verfahren zum einstellen der aktiven länge |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10338259B2 (en) | 2015-12-14 | 2019-07-02 | Covidien Lp | Surgical adapter assemblies and wireless detection of surgical loading units |
EP3252541A1 (de) * | 2016-06-01 | 2017-12-06 | Rolex Sa | Teil zum befestigen einer unruhspiralfeder |
EP4202569A1 (de) * | 2021-12-21 | 2023-06-28 | Montres Breguet S.A. | Armbanduhrengehäuse mit drehbarem aussenring |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH317531A (fr) * | 1954-04-21 | 1956-11-30 | Ebauches Bettlach Sa | Piton |
CH395869A (fr) * | 1963-07-05 | 1966-01-14 | Fontainemelon Horlogerie | Dispositif de fixation de l'extrémité extérieure d'un spiral d'horlogerie |
US5617377A (en) * | 1995-12-13 | 1997-04-01 | Perret, Jr.; Gerard A. | Watchband connector pin utilizing shape memory material |
US6612734B1 (en) * | 1999-07-29 | 2003-09-02 | Seiko Instruments Inc. | Mechanical timepiece with stud adjustment mechanism |
EP1302821A3 (de) * | 2001-10-10 | 2010-05-05 | Franck Muller-Watchland SA | Spiralfeder für Zeitmessgerät |
EP1515200A1 (de) * | 2003-09-10 | 2005-03-16 | Patek Philippe S.A. | Spiralfeder für Uhren |
EP1580625A1 (de) * | 2004-03-23 | 2005-09-28 | Asulab S.A. | Vorrichtung und Verfahren zur Fixierung einer Palette auf einem Hemmungsanker in einem Uhrwerk |
JP2006214822A (ja) * | 2005-02-02 | 2006-08-17 | Seiko Instruments Inc | 緩急可能なひげぜんまいを含む機械式時計 |
WO2008029158A2 (en) * | 2006-09-08 | 2008-03-13 | Gideon Levingston | Thermally compensating balance wheel |
EP2184653A1 (de) * | 2008-11-06 | 2010-05-12 | Montres Breguet S.A. | Spiralfeder mit Endkurvenerhöhung aus mikro-bearbeitbarem Material |
EP2804055B1 (de) * | 2013-05-16 | 2016-03-09 | Blancpain SA. | Einheit aus einem Spiralklötzchen und einem Spiralklötzchenträger |
-
2014
- 2014-11-26 EP EP14194961.0A patent/EP2881804B1/de active Active
-
2015
- 2015-10-02 US US14/873,533 patent/US9367038B1/en active Active
- 2015-11-04 JP JP2015216431A patent/JP6018686B2/ja active Active
- 2015-11-25 CN CN201510829127.9A patent/CN105629698B/zh active Active
Non-Patent Citations (1)
Title |
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None |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3432083A1 (de) * | 2016-02-25 | 2019-01-23 | ETA SA Manufacture Horlogère Suisse | Spiralfeder für mechanisches uhrwerk |
EP3252542B1 (de) * | 2016-06-01 | 2022-05-18 | Rolex Sa | Teil zur befestigung einer unruhspirale |
US12045013B2 (en) | 2016-06-01 | 2024-07-23 | Rolex Sa | Fastening part for a hairspring |
US20220155726A1 (en) * | 2018-09-03 | 2022-05-19 | Rolex Sa | Method for producing friction by indenting |
US11507021B2 (en) * | 2018-09-03 | 2022-11-22 | Rolex Sa | Method for producing friction by indenting |
EP4411489A1 (de) * | 2023-01-31 | 2024-08-07 | ETA SA Manufacture Horlogère Suisse | Vorrichtung zum einstellen und einstellen der aktiven länge einer spiralfeder für uhrwerk, und verfahren zum einstellen der aktiven länge |
Also Published As
Publication number | Publication date |
---|---|
US20160147196A1 (en) | 2016-05-26 |
EP2881804B1 (de) | 2017-08-02 |
US9367038B1 (en) | 2016-06-14 |
EP2881804A3 (de) | 2015-08-26 |
JP6018686B2 (ja) | 2016-11-02 |
CN105629698B (zh) | 2018-04-03 |
CN105629698A (zh) | 2016-06-01 |
JP2016099345A (ja) | 2016-05-30 |
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