EP2893404A2 - Organe régulateur d'horlogerie - Google Patents
Organe régulateur d'horlogerieInfo
- Publication number
- EP2893404A2 EP2893404A2 EP13756164.3A EP13756164A EP2893404A2 EP 2893404 A2 EP2893404 A2 EP 2893404A2 EP 13756164 A EP13756164 A EP 13756164A EP 2893404 A2 EP2893404 A2 EP 2893404A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wire
- torsion
- torsion wire
- plate
- balance
- 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
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 39
- 238000004873 anchoring Methods 0.000 claims description 38
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 230000010355 oscillation Effects 0.000 claims description 18
- 239000011521 glass Substances 0.000 claims description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- 230000000670 limiting effect Effects 0.000 claims description 11
- 210000000056 organ Anatomy 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 6
- 229910052790 beryllium Inorganic materials 0.000 claims description 6
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000002829 reductive effect Effects 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052726 zirconium Inorganic materials 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 4
- 229910000697 metglas Inorganic materials 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000003351 stiffener Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 210000003323 beak Anatomy 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003100 immobilizing effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005300 metallic glass Substances 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003042 antagnostic effect Effects 0.000 description 1
- 230000000703 anti-shock Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
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- 229910052814 silicon oxide Inorganic materials 0.000 description 1
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
- G04B18/00—Mechanisms for setting frequency
- G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
-
- 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
- G04B17/10—Oscillators with torsion strips or springs acting in the same manner as torsion strips, e.g. weight oscillating in a horizontal plane
Definitions
- the invention relates to a timepiece control member, comprising at least one balance oscillating about an oscillation axis and subjected to a restoring torque exerted by torsion return means.
- the invention also relates to a clockwork movement comprising at least one such regulator member, oscillating between a plate and a bridge.
- the invention also relates to a timepiece comprising at least one such watch movement.
- the invention relates to the field of watch clock mechanisms.
- the losses of a regulating organ directly influence the quality of the running of a watch, as well as its power reserve.
- the regulating organ is traditionally sensitive to the different vertical or horizontal positions of the watch, and the differences between the flat / hung positions are often important.
- CLEMEN JORGENSEN describes a static application of a pendulum less sensitive to shocks, and can be moved without hindrance.
- the return member of the regulating member is constituted by a torsion wire anchored at both ends and carrying a rocker in the middle, the wire being in the vertical of the place.
- the thread tension is effected by the elasticity of its end supports.
- the useful length of the wire is limited to one of its ends by a fork adjustable in position, whose point of contact with the wire determines this useful length.
- the support of the fork can be a bimetallic, to achieve temperature compensation.
- No. 5,772,803 to PEKER ATAKAN discloses a spring made of an amorphous metal alloy, such as a helical spring, torsion bar, torsion tube, not particularly intended for a watch application.
- ROLEX SA describes a method for shaping a barrel spring formed of a monolithic ribbon of metal glass, according to which the shape is calculated theoretical free to give this monolithic ribbon of metal glass so that each segment, once the spring loaded in the barrel, is subjected to the maximum bending moment, we put this ribbon in shape giving it curvatures, characteristics of this theoretical elm free, to account for a decrease in curvatures once the ribbon released, the ribbon is relaxed to fix its shape by heating, and cooled ribbon.
- This ROLEX document focuses on the case of a barrel spring with a thickness greater than 50 micrometers.
- the other document WO201 1/069273 A1 ROLEX SA describes a method for manufacturing a spring for a timepiece, of similar size, comprising at least one monolithic metal glass ribbon comprising at least one curvature, this method comprising a step shaping plastically deformed said monolithic ribbon to obtain at least a portion of said curvature.
- the document EP 2 154 581 A1 ROLEX SA describes a monolithic metal glass barrel spring with a thickness greater than 40 microns.
- the invention seeks to improve the efficiency of the regulator, by reducing losses, in all positions of a watch. In particular it is a question of limiting the friction, which should not be greater in a horizontal position of the watch, than in a vertical position.
- the invention proposes to eliminate the main source of friction constituted by the pivots, which can be estimated to be responsible for at least 90% of the friction in an oscillator.
- the invention proposes, further, to reduce as much as possible the number of components in an oscillator.
- the invention relates to a watchmaking member, comprising at least one balance oscillating about an axis of oscillation and subjected to a restoring torque exerted by torsion return means, characterized in that said at least one rocker comprises fastening means making it integral in oscillation with a torsion wire which constitutes said torsion-return means of said at least one rocker, in that the largest dimension of the cross-section of the useful part said torsion wire which is torsionally biased is less than 100 micrometers, in that the smallest dimension of the cross-section of said useful portion is less than 50 micrometers, the total length of said torsion wire is less than 6 millimeters, and in that said regulating member comprises tensioning means of said at least one torsion wire.
- said balance wheel comprises, on either side of said fixing means along said oscillation axis, first and second second means for limiting the radial clearance between said torsion wire and said beam.
- said torsion wire comprises, to avoid any harmful bending mode, at least one intermediate plate of greater cross-section than the useful strands of said torsion wire working in torsion, said intermediate plate being fixed at the level of said at least one balance.
- said torsion wire is at least partially amorphous alloy composed solely of zirconium, titanium, copper, nickel and beryllium, and comprising between 41 and 44% by weight of zirconium, between 1 and 1 and 14% by weight of titanium, between 9 and 13% by weight of copper, between 10 and 1 1% by weight of nickel, and between 22 and 25% by weight of beryllium.
- the invention also relates to a watch movement comprising at least one such regulating member, oscillating between a plate and a bridge, characterized in that it comprises, for the embedding of said twist wire, means for anchoring said member regulator constituted by first anchoring means to said bridge and by second anchoring means to said plate, and which together define said axis of oscillation of said regulating member.
- said motion comprises voltage adjusting means of said torsion wire by a distance adjustment between said bridge and said plate.
- the invention also relates to a timepiece comprising at least one such watch movement, characterized in that it is a watch, and in that said regulating member oscillates at a frequency greater than or equal to 5 Hz.
- Figure 1 shows, schematically, in section in a plane passing through the axis of oscillation of the balance, a torsion wire regulator member according to the invention
- FIG 2 is a schematic similar to Figure 1, a detail of a timepiece, in a movement comprising a regulating member according to a first embodiment of the invention
- 3 illustrates, schematically, a monobloc variant of the invention, with a frame frame now stretched a torsion wire carrying a beam made in the form of a beam;
- Figure 4 is a variant of Figure 3, comprising means for adjusting the tension of the torsion wire;
- Figure 5 is a plan view of a particular embodiment of the twist wire, which comprises an intermediate plate, and which is made from a blank shown in Figure 6;
- FIG. 7 is a diagrammatic perspective view of a rocker shaft mounted on the intermediate plate of the twist wire of FIG. 5, and FIG. 7A is a section along a plane perpendicular to the axis of oscillation, passing through this intermediate plate and a pendulum shaft;
- FIG. 8 represents, in a manner similar to FIG. 2, a detail of a movement comprising a regulating member according to a second embodiment of the invention; this regulator member is shown with a part of a removable tool for setting up an equipped module comprising the torsion wire carrying a balance in the middle part, and anchoring means at both ends thereof;
- FIG. 9 represents, in plan view, the mechanism of FIG. 8, in a particular embodiment comprising means for angular adjustment at the marker; this regulating member is represented with the same tooling for setting up the same equipped module, and with another removable tool constituted by a temporary holding screw for the initial assembly;
- Figure 9A is a similar view, partial, without representation of the hidden parts;
- FIG. 10 is a diagrammatic perspective view of a central portion of means for anchoring the torsion wire, constituted by a clamp, in which are represented, in broken lines, an end plate which comprises a torsion wire.
- FIG. 11 shows schematically and in a manner similar to FIG. 9 a detail of the anchoring means of the torsion wire, which comprise the clip of FIG. 10, held in a concentric bush, this bushing comprising angular indexing notches with which cooperating beaks of an orientation and holding blade;
- FIG. 12 schematically shows in perspective a control lever, also visible in FIG. 8, making it possible to apply a micrometric displacement to the clamp of FIG. 10 by reducing a displacement printed by a screw to a end of this adjustment lever; this adjustment lever comprises, in the immediate vicinity of a fixed attachment point on a bridge, a reduced section area giving this adjustment lever sufficient elasticity;
- FIG. 13 represents, in the form of a block diagram, a watch comprising a movement that itself comprises a regulator member according to the invention.
- the invention proposes to improve the performance of the regulating member of a watch.
- the losses of a regulating organ directly influence the quality of the running of a watch, as well as its power reserve.
- the losses are of three types: dry friction (pivots), linear (air on balance) and quadratic; a large part of these losses is linked to the existence of pivots;
- the regulating organ is traditionally sensitive to the different vertical or horizontal positions of the watch, and the differences between the flat / hung positions are often important.
- the invention proposes in particular:
- torsion return means in particular of a torsion thread.
- a torsion wire is disposed in the direction of the strongest accelerations in presence, including the gravity of gravity in the case of a pendulum.
- This axial arrangement of the wire relative to the vertical of the place is a constant timepieces devolved to the time display.
- Known mechanisms are not suitable in case of a watch, whose orientation in space and in relation to the movements of the user is any.
- the prior art torsion wire clocks uses metal twist son, which are sufficient for the applications concerned, and contains no suggestion for the use of other materials.
- miniaturization imposed by the application specific to regulating bodies of watches does not allow the use of wire or metal plates, because the available length is incompatible with the exercise of a sufficient pair of booster, It is then necessary to put at the point a torsion wire with one or more useful parts (biased to exert an elastic return torque) of very short lengths, compatible with the thickness of a watch movement.
- the total length LT of the twisting wire to be used is a few millimeters, preferably less than 6 millimeters, and less than 5 millimeters in the embodiment described here, and the useful length LL of the torsion wire is even smaller, this useful length LL may result from the accumulation of several primary useful lengths of sections of the torsion wire, as will be seen later.
- the useful length of each section working in torsion then necessarily greatly reduced, typically between 2 and 4 millimeters, and the cross sections will be of the order of a few microns, typically between 20 and 40 microns.
- the problem of the invention consists, not only in defining a material capable of producing such a twist wire, but also in developing a shape that is achievable by reliable and reproducible industrial manufacturing processes, which is particularly delicate in a field of micro-technology, and with not particularly designed materials for watches.
- the invention thus relates to a clock control member 1, comprising at least one rocker 2, which rocker 2 oscillates about an oscillation axis D and is subjected to a restoring torque exerted by torsion return means 4 alternatively in both directions of oscillation.
- this regulator member 1 is designed for a watch, in particular a wristwatch, which imposes particular constraints of size and resistance to acceleration.
- This balance 2 can be achieved without limitation in different forms: disc, annular, provided with weights, or reduced to a simple beam.
- the invention proposes to eliminate the pivots, responsible for at least 90% of the friction in an oscillator.
- the friction torque of a pivot is proportional to the radius of this pivot. A large radius causes great losses in vertical. Also it is necessary to reduce, if using a conventional pivot radius below a very small value close to 0.050 mm.
- this at least one rocker 2 comprises fastening means 10 making it integral in oscillation with at least one torsion wire 5.
- This torsion wire 5 constitutes said torsion return means 4 specific to this at least a rocker arm 2. the use of such a torsion wire 5 makes unnecessary a balancer shaft, and thus eliminates the pivots.
- the exemplary embodiments illustrated comprise only a single pendulum. In case of juxtaposition of several rockers, they can be connected rigidly, or by an intermediate section of the same twist wire, this intermediate section may or may not be useful in torsion.
- this twist yarn 5 has, preferably, a modulus of elasticity greater than 100 GPa, and preferably greater than 120 GPa, and a yield strength greater than 2000 MPa.
- modulus of elasticity greater than 100 GPa, and yield strength greater than 2000 MPa result from a long experiment, delicate because of the difficulties of elaboration and the very micron dimensioning of the torsion wire 5, and constitute a particular characteristic of a wire used in a particular regulator member.
- micrometer sizing sizing of a thread whose largest dimension of the cross section of the working portion (as will be called hereinafter the portion of the wire which is subject to torsion) is a few microns or a few tens of micrometers, and in any case less than 100 micrometers, and whose smallest dimension of the cross section of the useful part is a few micrometers or a few tens of micrometers, and in any case less than 50 micrometers.
- the choice of a large elastic modulus ensures a good rigidity of the torsion wire, and conditions its quality of support in suspension of the pendulum.
- the geometry of such a torsion wire ensures, in addition, the axiality of the balance. Proper tensioning of the torsion wire ensures equal tension on both sides of the balance.
- a metal glass is here quite appropriate, it allows, again, to obtain a sufficient angular amplitude for the balance, or about 100 °, distributed between about: 50 ° for cooperation with the wheel of exhaust, and 50 ° for the inputs / outputs of the maintenance system.
- the modulus of elasticity must be greater than 60 GPa, and the yield strength greater than 1000
- the ratio between the modulus of elasticity and the upper elastic limit is advantageously between 40 and 80, and preferably close to 60.
- the ratio between the free length LL of the torsion wire 5, that is to say the length on which it is not impeded and can twist and vibrate freely, and the LG greatest dimension of the cross section of its useful portion is preferably between 80 and 150, and preferably close to 1 15.
- the regulating member 1 comprises tensioning means 400 of the torsion wire 5.
- the regulating member 1 further comprises means voltage adjusting means 20 of the tension of the torsion wire 5, which are arranged to act on these tensioning means 400.
- the balance 2 comprises a serge 29 making a flywheel, which is integral in oscillation with a shaft of This shaft 3 is tubular, so as to allow the torsion wire 5 to pass therethrough, and has a first bore 31 and a second bore 32, separated by a narrowed sectional area, for example at a shoulder 33 As can be seen in FIG. 2.
- the first bore 31 and the second bore 32 are of different diameters and the shoulder 33 is constituted simply by the surface which joins one to the other.
- the fastening means 10 may consist, in a non-limiting manner, of connecting element 6 fixed to the torsion wire 5, by crimping, pinching, driving, gluing, brazing, welding, or other suitable process ensuring sufficient strength to withstand the torque maximum service and high acceleration, typically of the order of 5000g, occurring when shocks on the timepiece allowing the regulator member 1.
- the connecting element 6 has a passage 61 for the torsion wire 5, and at which the latter is immobilized, and it further comprises a support 63 arranged to cooperate in abutment abutment on the shoulder 33.
- the connecting element 6 is not pre-crimped on the torsion wire 5, it is only after threading the wire 5 in the bore of the shaft 3 and proper positioning.
- the balance 2 advantageously comprises, on either side, means of rotation. fixation 10 along the axis of oscillation D, first 15 and second means for limiting the radial clearance between the torsion wire 5 and the balance 2.
- means of limitation of frolicking can equip a movement 100, at the level of a plate 7 and a bridge 8, between which oscillates the balance 2, in place of these first 15 and the second ones16. means for limiting the radial clearance between the torsion wire 5 and the balance 2, or in addition to these.
- the first 15 and the second limiting means are constituted by stones comprising a passage corresponding to the diameter of the largest radial dimension of the torsion wire 5.
- these stones each comprise a bore of very large diameter slightly greater than the diagonal of the cross section of the twisting wire, of a value which is preferably within a range diagonally of the cross section of the twisting wire, and, in a particular embodiment, greater than or equal to 10 micrometers.
- the torsion wire 5 is made of metal glass, or else at least partially amorphous alloy composed solely of zirconium, titanium, copper, nickel and beryllium, and comprising between 41 and 44% by weight of zirconium, between 11 and 14% by weight of titanium, between 9 and 13% by weight of copper, between 10 and 11% by weight of nickel, and between 22 and 25% by weight of beryllium.
- the torsion wire 5 is in "LM1b" of "Liquidmetal", a material which has a Young's modulus of 98 GPa and a yield strength of 1700 MPa.
- This metal glass has the advantage of combining high values of modulus of elasticity and yield strength.
- the twist wire 5 is made of "Liquidmetal” ⁇ "LM10" metal glass.
- the torsion wire 5 is made of metal glass, or else at least partially amorphous alloy comprising 75.44% by weight of nickel, 13% of chromium, 4.2% of iron, 4.5% by weight silicon, 0.06% carbon, 2.8% boron.
- the torsion wire 5 is made of "Metglas®” metal glass of reference “MBF20".
- the Young's modulus of "MBF20” is close to 140 GPa and its elastic limit is about 2500 MPa.
- a torsion wire 5 with a total effective length LL of 4.2 mm, with a cross section of the useful part of 37 ⁇ 20 microns gives good isochronism results for a 5 Hz oscillator, with a balance of an inertia of 12 mg.cm2.
- the torsion wire 5 is made of silicon and / or silicon oxide.
- the torsion wire 5 is made of monocrystalline diamond or polycrystalline diamond.
- the embodiments with torsion wire made of micro-machinable material also make it possible to produce, as can be seen in FIG. 3, a one-piece cage made of silicon or the like, with adjustment of the tension at an anchoring of the torsion wire 5.
- the complete frame 40 can be made, preferably integrally, of silicon or the like.
- This frame 40 comprises a rigid frame 41, in which is stretched the torsion wire 5, the rocker 2 is here made in the form of a beam.
- FIG 4 shows a variant comprising voltage setting means 20 of the torsion wire 5, made for example in the form of an eccentric 43 or a wedge 42 inserted into a slot, or the like.
- the movement 100 may comprise a plurality of voltage adjusting means 20, in particular two, distributed substantially symmetrically with respect to the oscillation axis D, so as to move the bridge 8 parallel to the plate 7; failing this, guidance on columns can make it possible to guarantee this parallelism with a single voltage adjusting screw 22.
- the torsion wire 5 is, at least in its useful part, rectangular or square cross section. A square cross section, more particularly, ensures the same behavior of the regulating member in all positions of the timepiece that incorporates it.
- the useful, active portion of the twist wire 5 may have a square cross-section of 30 microns in metal glass, or 27 microns in silicon.
- the material of the torsion wire 5 is chosen, such that this torsion wire 5 has a modulus of elasticity, in particular transverse in a direction perpendicular to this oscillation axis D, greater than 100 GPa, and preferably greater at 120 GPa.
- This condition is achieved with an elaboration in an at least partially amorphous alloy described above, or "Liquidmetal ⁇ " metal glass of reference “LM1 b", or “Metglas ⁇ " metal glass of reference "MBF20".
- the regulator member 1 preferably includes, for the installation of the torsion wire 5, and to constitute the tensioning means 400 of the torsion wire 5, the anchoring means 30 of the regulating member 1.
- These anchoring means 30 comprise: at a first end of the torsion wire 5 first anchoring means 301, or / and, at a second end of the torsion wire 5 opposite the first, second anchoring means 302 .
- these first anchoring means 301 and the second anchoring means 302 together define the pivot axis D of the regulating member 1.
- the invention also relates to a clockwork movement 100 comprising at least one such regulator member 1, oscillating between a plate 7 and a bridge 8.
- this movement 100 comprises, for the embedding of the torsion wire 5, and to constitute the tensioning means 400 of the torsion wire 5, such anchoring means 30 of the regulating member 1.
- the first anchoring means 301 are fixed to the bridge 8, and the second anchoring means 302 are fixed to the plate 7.
- the first anchoring means 301 of the torsion wire 5 to the bridge 8 comprise a first clamp 11, in particular a split clamp comprising a slot 14. for the passage of the torsion wire 5.
- This first clamp 1 1 comprises a bearing face 1 1 1, facing the balance 2, and which is arranged to bear on a complementary bearing face 91 that includes the bridge 8, or, as shown in FIG. 2, an orientable support 9 attached to this bridge 8.
- This orientable support 9 is preferably, but not exclusively, driven onto deck 8 with sufficient friction to hold it in position. It is steerable like a bolt carrier, allowing fine adjustment of the alignment of the pins of the plate pin, the fork, and the exhaust line. This orientable support can, still, be maintained in its angularly adjusted position by holding means, not shown in the figure.
- FIG. 2 represents the orientable support 9 provided with a shoulder 93 cooperating in abutment with an upper surface 89 of the bridge 8.
- the first clamp 1 1 further comprises a male cone 1 13, which cooperates with a female cone 123, open towards the balance 2, and comprises a first sleeve 12.
- This first sleeve 12 comprises a thread 122. which cooperates with a thread 92 of the orientable support 9.
- the second anchoring means 302 of the torsion wire 5 to the plate 7 comprise a second clamp 13, in particular, a split gripper comprising a slot 134 for the passage of the torsion wire 5.
- This second gripper 13 comprises a bearing face 131, turned towards the rocker 2, and which is arranged to bear on a complementary bearing surface 71 which comprises, on this side, directly the plate 7.
- the second clamp 13 further comprises a male cone 133, which cooperates with a female cone 143, open towards the balance 2, and that comprises a second sleeve 14.
- This second sleeve 14 has a thread 142, which cooperates with a tapping 72 of the plate 7.
- the second clamp 13 encloses the torsion wire 5 and immobilizes its end, along with the bearing face 131 the second clamp 13 bears on the complementary bearing face 71.
- material is melted around the wire 5 so as to form an outgrowth, which is stopped when pulling the wire at its opposite end, at a conical crucible or a spherical bowl, or the like, blocking this outgrowth.
- the anchoring of the torsion wire 5 is performed by crimping.
- the torsion wire 5, provided with fixing means 10 fixed in position, is introduced into the shaft 3 of the balance 2, which is provided with its serge 29, its trays and dowels.
- the wire 5 is pulled in abutment abutment between the bearing surface 63 and the shoulder 33.
- a second end of the torsion wire 5, on the side of the plate 7, is introduced into the second clamp 13, and tightened in position, thanks to the second sleeve 14.
- a first end of the wire 5, the side of the bridge 8 is introduced into the first clamp 1 1, and pre-clamped in position, thanks to the first sleeve 12.
- the action on the first bushing 12 and the second bushing 14 makes it possible to adjust the lug, on the side of the plate 7, of the rocker 2 relative to this plate 7 and to the components that it carries, as well as to ensure a pretraction of the wire 5.
- the regulator member 1 further comprises anti-shock means 34 limiting the radial clearance of the shaft 3.
- shock-absorbing means 34 constitute a safety device. Incabloc type and can be multiple, arranged at different levels of the shaft 3 in the direction D, and be made in the form of a stone, or magnetic or / and electrostatic repulsion means of an antagonistic surface 35 3.
- Such means 34 may advantageously be located at the level of the first 15 and second means for limiting the radial clearance of the torsion wire 5.
- the watch movement 100 then comprises means 20 for adjusting the tension of the torsion thread 5 by adjusting the distance between the bridge 8 and another component, namely the plate 7, or a blade in flexion (especially at the level of at least one of the anchors 301). or 302) to perform this adjustment, or the like.
- the voltage adjustment is performed by at least one spring.
- these voltage adjustment means 20 comprise a threaded bush 23 which cooperates in a complementary manner with a tapping 74 of the plate 7.
- At least one screw 22 co-operating with a nut 5 integral with the plate 7 is arranged to push the bridge 8 to the plate 7, bearing on the sleeve 23 in its adjustment position.
- This screw 22 cooperates, by a thread 221 that it comprises, with a tapping 251 of a nut 25, which is driven into a housing 77 of the plate 7, or which is an integral part thereof.
- This screw 22 is concentric with a threaded bush 23, a thread 24 cooperates complementary to a tapping 74 of the plate 7.
- the sleeve 23 tends to move away from the plate 7 under the action of a biasing means elastic 21, such as conical spring, Belleville washer, Schnorr washer, or the like, bearing both on a bearing face 76 of the plate 7 and on a bearing face 232 of the sleeve 23, which has a flange 233 arranged to exert a thrust on a support surface 1 of the bridge 8.
- a biasing means elastic 21 such as conical spring, Belleville washer, Schnorr washer, or the like
- a lower surface 225 of the head of the screw 22 bears on a bearing face upper 82 of the bridge 8, a lower bearing surface 81 of the bridge 8 cooperates in abutment with an upper bearing surface 231 of the sleeve 23.
- the position of the bridge 8 determines the tension of the wire 5.
- the adjustment limit is given by an upper surface 78 of the plate 7 and a lower surface 88 of the bridge 8.
- the tension in the torsion wire is greater than 0, 1 N. It is indeed necessary to guarantee the voltage with less than 5 micrometers of displacement in vertical.
- the adjustments are made so that the maximum bending supportable vertical position is less than or equal to 5 micrometers.
- the torsion return means 4 work in torsion, but are also subjected to bending, under the effect of the couples printed by the pendulum, or by the movement and transmitted by the pendulum. It is preferable to minimize the bending deformations, and to ensure that these return means torsionally 4, especially when they are constituted by a torsion wire 5, do not include vibration antinode at the attachment of the pendulum 2
- the torsion wire 5 comprises, in an advantageous embodiment visible in FIGS. 5, 7, 8, 10, and 1 1, at least one intermediate plate 53. This intermediate plate 53 is of superior cross-section to the useful strands 51, 52, torsion wire 5 working in torsion, described below.
- This intermediate plate 53 is located at the attachment of the balance 2 preferably in the middle of the torsion wire 5, or at each balance 2 if there are several. This removes the value of the eigenmodes in bending (natural frequency of the order of 600 Hz, compared to 5 to 10 Hz of the oscillator). This intermediate plate 53 allows, again, a reinforced attachment of the balance 2.
- FIG. 5 illustrates such a torsion wire 5, in an advantageous embodiment where the torsion wire comprises such an intermediate plate 53 between two strands 51 and 52. These strands 51 and 52 each constitute a part that is free in torsion.
- the torsion wire 5 comprises, at the ends of these strands 51 and 52 opposite to the intermediate plate 53, end plates 54 and 56, in particular provided with bores or lights 55 and 57, for anchoring. torsion wire 5 and maintaining it in tension. It is understood that the useful part of the wire of 5 is then formed by the strand 51 and the strand 52.
- the intermediate plates 53 and end 54 and 56 are intended to be embedded in holding clips, or to be secured by any means (welding, gluing, or other ) with fixing elements to the various components of the regulator body 1 concerned.
- the total useful length LL is here the sum of the useful lengths LU1 and LU2 of the strands 51 and 52.
- FIG. 7 represents a rocker shaft 3 mounted on the intermediate plate 53 of the torsion wire 5 of FIG. 5.
- This shaft 3 may advantageously be in several concentric parts: a central part comprising at least one housing 36 for receiving the intermediate plate 53, this central portion may include a pin housing for the axial positioning of the balance relative to the wire, if the intermediate portion 53 also comprises a housing for such a pin; this central part may be constituted as a clamp, thanks to at least one elastic slot, and be gripped by a bushing constituting a peripheral portion of this shaft 3 and immobilizing the clamp with clamping, and thus immobilizing the intermediate portion 53 of the wire
- the housing 36 may take the form of a groove with parallel faces, or, as shown in FIGS. 7 and 7A, a female square profile implantation, or similar, and preferably this housing. 36 includes at less a slot or the like, not shown in the figures, giving it an elasticity to maintain the torsion wire 5 without hurting it.
- the intermediate plate 53 is driven into a square or rectangular cross-section housing of the shaft 3, and held by gluing or the like.
- Figures 8 to 12 illustrate a second embodiment, of little complex implementation and allowing a pre-assembly module.
- This second embodiment incorporates the torsion wire characteristics set forth above.
- the regulating member 1 according to this second mode comprises at least one adjusting lever 75, 85 for the adjustment in traction of at least one of the end anchors 301, 302, of the torsion thread 5 constituting the adjustment means voltage 20.
- FIG. 8 shows first anchoring means 301 for clamping an end plate 54 of the torsion wire 5 of Figure 5, and tension adjusting means.
- the first anchoring means 301 comprise a clamp 1 1 clamped by a bushing 1 10.
- FIG. 10 shows this clamp 1 1 in which are represented, in broken lines, an end plate 54 that comprises a torsion wire 5 according to Figure 5 inserted in a first slot January 15 parallel to the axis, and a peg 1 17 passing through a bore 55 of the end plate 54 and mounted on a support We Th Su 1 16 to outlet of a second slot 1 13 parallel to the axis D and orthogonal to the first slot 1 15.
- the clamp 1 1 comprises an axial passage 1 14 for threading the torsion wire 5.
- the first anchoring means 301 further comprise a bushing 1 10 concentric to the clamp 1 1, visible in Figures 8 and 1 1, and enclosing the clamp 1 1.
- This bushing 1 10 comprises angular indexing notches January 12, with which cooperate nozzles 830 of an orientation and holding blade 83, visible in Figures 8, 9 and 1 1, and fixed to the bridge 8 by a screw 801.
- the second anchoring means 302 comprise a clamp 13 clamped in a sleeve 130, held angularly by the spouts 730 of a blade 73 fixed to the plate 7 by a screw 701.
- Figure 8 shows the tension adjusting means 20 of the torsion yarn tension 5 of this second embodiment.
- These means 20 comprise at least one adjustment lever 85 on the bridge side, and / or a control lever 75 on the platinum side, each acting in support on the sleeve 1 1, 13, respectively, to change its position.
- FIG. 12 illustrates such an adjustment lever 85, which makes it possible to apply a micrometric displacement to the clamp 1 1 by reducing a displacement printed by a screw 45, passing through the bridge 8, at a tapping 850, that comprises the adjustment lever 85, along an axis D2 at one end of this adjustment lever 85.
- the end 453 of this screw 45 bears on a candle 44 fixed to the plate 7.
- This adjustment lever 85 comprises at least , in the immediate vicinity of fixed fixing points by screws 851 passing through bores 852 along axes D1 and engaged with the bridge 8, a reduced section area 854, such as a groove, giving this adjustment lever 85 sufficient elasticity.
- an arm 853, or both arms 853 presses on the sleeve 1 1 and allows a fine adjustment of the traction of the torsion wire 5.
- the adjustment lever 75 comprises at least in the immediate vicinity of fixed points fixing by screws 751 passing through bores 752 along axes D3 and engaged with plate 7, a reduced section area 754.
- the reduction ratio of the lever 85 on the bridge side is equal to A2 / A1, A2 being the distance between the axes D1 and D2, and A1 the distance between the axes D1 and D.
- the reduction ratio of the lever 75 platinum side is equal to A4 / A3, A4 is the distance between the axes D3 and D4, and A3 the distance between the axes D3 and D.
- the tensile force applied to the wire 5 is about 0.5N per side.
- the platen-side lever 75 provides prestressing, and the bridge-side lever 85 allows for fine adjustment (and frequency adjustment).
- the reduction ratios are different from the bridge side and the platinum side.
- the materials chosen for the lever 85 on the bridge side, and for the lever 75 on the platinum side have different coefficients of thermal expansion.
- FIG. 8 shows another means for temperature compensation, realized by the interposition of a candle 44 between firstly the plate 7, respectively, the bridge 8, and secondly the adjustment lever 85 opposite respectively 75, the expansion of this candle 44 thus, changing the position of the lever 85 or 75 concerned, and, therefore, correct the support on the sleeve 1 1, 13, corresponding, and the tension of the thread 5,
- this candle 44 is embedded in the plate 7 at a countersink 452.
- This candle 44 is the one on which bears the end 453 of the screw 45 for adjusting the lever 85.
- the lower surface 451 of the head of this screw 45 is distant from a counterbore 8A of the bridge 8, with a clearance J.
- the choice of the material of the candle 44 makes it possible to compensate for the thermal effect, the expansion of this candle 44 modifying the bearing position of the end 453, and thus the position of the adjusting lever 85 and the abutment on the clamp 1 1.
- the invention allows the realization of an independent module equipped 300, comprising the torsion wire 5 carrying at least one balance 2 in the middle part, and anchoring means 301 and 302 at both ends.
- the first anchor means 301 serve as an underrun end of a first strand 51 of the useful torsion wire 5
- the second anchoring means 302 serve as an underrun end of a second strand useful 52 of the torsion wire 5, the first useful strand 51 and the second useful strand 52 being on either side of the at least one rocker 2.
- FIG. 8 represents a portion of a removable tool 401 for placing such an equipped module 300.
- the bushing 1 10 comprises a groove 1 1 1 with which a lip 87 of this tool 401 cooperates.
- a lip 77 of the tool 401 can cooperate with a groove 131 of the sleeve 130 enclosing the clamp 13 of the second anchoring means 302.
- the plate 7 and the bridge 8 are each configured with a lateral opening to allow lateral insertion of such a module equipped, the range of the sockets 1 10 and 130 being made on a half-cylinder in this particular variant.
- the beaks 87 and 77 serve as a fork to allow this insertion and positioning, then simply perform the traction adjustment by the adjusting levers 85 and 75, and performing angular indexing by the blades 83 and 73.
- Figure 9 shows another removable tool 402 consisting of two temporary holding screws in theoretical angular position for the initial assembly.
- Each screw makes it possible to spread the nozzles 830, 730, of the blade 83, 73, concerned, during the insertion of the module, the disassembly of each screw releases the corresponding nozzles and allows the angular indexing.
- Figure 9 further illustrates, in particular, a variant with angular indexing to the mark.
- the arm 83 is held by the screw 801, not at a bore, but a light 831, and the screw 801 limits the angular displacement of the blade 83 at the angle a. This allows the fine adjustment of the alignment of the pins of the plate pin, the fork, and the exhaust line.
- the regulator member 1 comprises at least one component, here a candle 44, embedded in a housing 452 of the plate 7, which elongates at the same time as the return means twist 4, in particular the torsion wire 5.
- the invention also relates to a timepiece 200 comprising at least one such movement 100 clock.
- this piece 200 is a watch.
- a watch 200 is provided with such a regulating member 1, which oscillates at a frequency greater than or equal to 5 Hz, and makes the best use of the advantages of the regulating member 1 with a torsion wire 5 according to the invention .
- the torsion pendulum has, in theory, a perfect isochronism, and the solution implemented by the invention provides a satisfactory response to the regularity of the operation of the watch, and this in all positions.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Springs (AREA)
- Micromachines (AREA)
- Electric Clocks (AREA)
- Electromagnetism (AREA)
- Ropes Or Cables (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13756164.3A EP2893404B1 (fr) | 2012-09-03 | 2013-09-03 | Organe régulateur d'horlogerie |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12182816.4A EP2703911B1 (fr) | 2012-09-03 | 2012-09-03 | Organe régulateur de montre |
EP13756164.3A EP2893404B1 (fr) | 2012-09-03 | 2013-09-03 | Organe régulateur d'horlogerie |
PCT/EP2013/068126 WO2014033309A2 (fr) | 2012-09-03 | 2013-09-03 | Organe régulateur d'horlogerie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2893404A2 true EP2893404A2 (fr) | 2015-07-15 |
EP2893404B1 EP2893404B1 (fr) | 2016-07-06 |
Family
ID=46799121
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12182816.4A Active EP2703911B1 (fr) | 2012-09-03 | 2012-09-03 | Organe régulateur de montre |
EP13756164.3A Active EP2893404B1 (fr) | 2012-09-03 | 2013-09-03 | Organe régulateur d'horlogerie |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12182816.4A Active EP2703911B1 (fr) | 2012-09-03 | 2012-09-03 | Organe régulateur de montre |
Country Status (8)
Country | Link |
---|---|
US (1) | US9201399B2 (fr) |
EP (2) | EP2703911B1 (fr) |
JP (1) | JP6078156B2 (fr) |
KR (1) | KR101777484B1 (fr) |
CN (1) | CN104769509B (fr) |
HK (1) | HK1212049A1 (fr) |
RU (1) | RU2625733C2 (fr) |
WO (1) | WO2014033309A2 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2975469B1 (fr) * | 2014-07-14 | 2017-07-05 | Nivarox-FAR S.A. | Guidage flexible horloger |
CH709880A2 (fr) * | 2014-07-14 | 2016-01-15 | Nivarox Sa | Guidage flexible horloger. |
FR3048790B1 (fr) * | 2016-03-14 | 2018-04-06 | Lvmh Swiss Manufactures Sa | Mecanisme pour piece d'horlogerie, mouvement horloger et piece d'horlogerie comprenant un tel mecanisme. |
CH712726A2 (fr) * | 2016-07-21 | 2018-01-31 | Montres Breguet Sa | Oscillateur balancier-spiral d'horlogerie à pivot magnétique. |
CH713288A1 (fr) | 2016-12-23 | 2018-06-29 | Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie | Composant monolithique flexible pour pièce d'horlogerie. |
EP3379342B1 (fr) * | 2017-03-22 | 2022-07-20 | Officine Panerai AG | Dispositif comportant un ressort de réglage rapide coopérant avec un mobile d'une pièce d'horlogerie |
EP3422118B1 (fr) * | 2017-06-30 | 2020-02-26 | Montres Breguet S.A. | Dispositif de fixation d'un bracelet |
EP3502803B1 (fr) * | 2017-12-19 | 2020-08-05 | Omega SA | Ensemble réglable d'horlogerie |
CN111061140A (zh) * | 2018-10-17 | 2020-04-24 | 精工爱普生株式会社 | 钟表壳体以及钟表 |
CN109283830A (zh) * | 2018-11-20 | 2019-01-29 | 深圳智芯科技有限公司 | 一种减少走时误差的方法、系统和计时装置 |
CN114964588B (zh) * | 2022-05-20 | 2024-08-27 | 中国人民解放军国防科技大学 | 一种扭摆式微推力测量装置和方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE251558C (fr) * | ||||
US1904169A (en) * | 1926-11-15 | 1933-04-18 | Reutter Jean Leon | Torsion pendulum |
DK65659C (da) * | 1943-04-02 | 1947-09-15 | Clemen Joergensen | Ur med Drejependul. |
US2860580A (en) * | 1952-08-15 | 1958-11-18 | Varaud Claude | Regulating device with torsion wire for clockwork |
US3017742A (en) * | 1958-07-28 | 1962-01-23 | Joseph A Reinhardt | Escapement for a time rate mechanism |
GB1167582A (en) * | 1966-01-21 | 1969-10-15 | Gen Electric | Improvements in Electric Synchronous Motor Clocks |
US3454799A (en) * | 1966-01-21 | 1969-07-08 | Gen Electric | Torsion wire tension spring for battery operated clock |
CH481412A (de) * | 1966-09-26 | 1969-07-31 | Straumann Inst Ag | Schwinger für Zeitmessgeräte |
DE1815099A1 (de) * | 1968-12-17 | 1970-09-24 | Mauthe Gmbh Friedr | Oszillator als Gangordner von insbesondere elektrischen Uhren |
DE2345130A1 (de) * | 1973-09-07 | 1975-03-20 | Schatz Soehne Jahresuhren | Drehpendeluhr mit einem ohne regulierfunktion schwingenden pendel |
CA1143955A (fr) * | 1979-04-19 | 1983-04-05 | Wolfgang Fehrenbacher | Horloge a pendule rotatif |
DE8602634U1 (de) * | 1986-02-01 | 1986-04-10 | Emil Schmeckenbecher Uhrenfabrik, 7730 Villingen-Schwenningen | Elektrische Uhr mit dekorativem Torsionspendel |
CN2039437U (zh) * | 1988-11-10 | 1989-06-14 | 苏州市华光建筑五金厂 | 一种机械式扭摆钟 |
CN2212214Y (zh) * | 1994-04-18 | 1995-11-08 | 刘阳彬 | 落地钟扭摆装置 |
US5772803A (en) * | 1996-08-26 | 1998-06-30 | Amorphous Technologies International | Torsionally reacting spring made of a bulk-solidifying amorphous metallic alloy |
EP2154581A1 (fr) * | 2008-08-04 | 2010-02-17 | Rolex Sa | Ressort de barillet et procede pour sa mise en forme |
CH698962B1 (fr) * | 2008-06-10 | 2014-10-31 | Rolex Sa | Ressort de barillet et procédé pour sa mise en forme. |
EP2510405B1 (fr) * | 2009-12-09 | 2016-03-30 | Rolex S.A. | Procede de fabrication d'un ressort pour piece d'horlogerie |
-
2012
- 2012-09-03 EP EP12182816.4A patent/EP2703911B1/fr active Active
-
2013
- 2013-09-03 EP EP13756164.3A patent/EP2893404B1/fr active Active
- 2013-09-03 JP JP2015529049A patent/JP6078156B2/ja active Active
- 2013-09-03 RU RU2015112142A patent/RU2625733C2/ru active
- 2013-09-03 WO PCT/EP2013/068126 patent/WO2014033309A2/fr active Search and Examination
- 2013-09-03 KR KR1020157008535A patent/KR101777484B1/ko active IP Right Grant
- 2013-09-03 CN CN201380057258.9A patent/CN104769509B/zh active Active
- 2013-09-03 US US14/423,815 patent/US9201399B2/en active Active
-
2015
- 2015-12-29 HK HK15112790.0A patent/HK1212049A1/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2014033309A3 * |
Also Published As
Publication number | Publication date |
---|---|
KR20150052236A (ko) | 2015-05-13 |
JP2015530569A (ja) | 2015-10-15 |
WO2014033309A2 (fr) | 2014-03-06 |
US20150212490A1 (en) | 2015-07-30 |
JP6078156B2 (ja) | 2017-02-08 |
WO2014033309A4 (fr) | 2014-06-12 |
CN104769509B (zh) | 2017-06-16 |
CN104769509A (zh) | 2015-07-08 |
RU2625733C2 (ru) | 2017-07-18 |
KR101777484B1 (ko) | 2017-09-11 |
RU2015112142A (ru) | 2016-10-20 |
EP2703911A1 (fr) | 2014-03-05 |
US9201399B2 (en) | 2015-12-01 |
EP2703911B1 (fr) | 2018-04-11 |
EP2893404B1 (fr) | 2016-07-06 |
HK1212049A1 (en) | 2016-06-03 |
WO2014033309A3 (fr) | 2014-04-24 |
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