EP4177677A1 - Uhrachse - Google Patents
Uhrachse Download PDFInfo
- Publication number
- EP4177677A1 EP4177677A1 EP22216886.6A EP22216886A EP4177677A1 EP 4177677 A1 EP4177677 A1 EP 4177677A1 EP 22216886 A EP22216886 A EP 22216886A EP 4177677 A1 EP4177677 A1 EP 4177677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- pivot
- even less
- axis
- shaft
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims abstract description 38
- 229910052726 zirconium Inorganic materials 0.000 claims description 18
- 230000033001 locomotion Effects 0.000 claims description 14
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 9
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 8
- 229910052582 BN Inorganic materials 0.000 claims description 6
- 229910026551 ZrC Inorganic materials 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 239000002041 carbon nanotube Substances 0.000 claims description 6
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 6
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 6
- 229910003472 fullerene Inorganic materials 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 6
- QDMRQDKMCNPQQH-UHFFFAOYSA-N boranylidynetitanium Chemical compound [B].[Ti] QDMRQDKMCNPQQH-UHFFFAOYSA-N 0.000 claims 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 235000019589 hardness Nutrition 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 8
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 8
- 230000035939 shock Effects 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 7
- 238000005096 rolling process Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005291 magnetic effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical class C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- OTCHGXYCWNXDOA-UHFFFAOYSA-N [C].[Zr] Chemical compound [C].[Zr] OTCHGXYCWNXDOA-UHFFFAOYSA-N 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 239000002071 nanotube Substances 0.000 description 4
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 4
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 4
- 229910052727 yttrium Inorganic materials 0.000 description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000011156 metal matrix composite Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- -1 nitrogen ions Chemical class 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910000915 Free machining steel Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 102100021470 Solute carrier family 28 member 3 Human genes 0.000 description 1
- 101710186856 Solute carrier family 28 member 3 Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000009694 cold isostatic pressing Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- OYFJQPXVCSSHAI-QFPUQLAESA-N enalapril maleate Chemical compound OC(=O)\C=C/C(O)=O.C([C@@H](C(=O)OCC)N[C@@H](C)C(=O)N1[C@@H](CCC1)C(O)=O)CC1=CC=CC=C1 OYFJQPXVCSSHAI-QFPUQLAESA-N 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
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- 210000000056 organ Anatomy 0.000 description 1
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- 230000035945 sensitivity Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
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- G04B13/026—
-
- 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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
-
- 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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
- G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
- G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
-
- 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
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
-
- 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
- G04B17/063—Balance construction
-
- 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
- G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the 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
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
-
- 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
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
- G04B31/06—Manufacture or mounting processes
Definitions
- the invention relates to a watch axis, in particular a balance wheel axis.
- the invention relates to an assembly or an oscillator comprising a balance shaft.
- the invention also relates to a timepiece movement or a timepiece comprising such an axis.
- the balance staff is an essential component of the watchmaking regulating organ.
- the balance shaft comprises at each end a shank extending by a pivot.
- the balance shaft notably carries the spiral spring and oscillates on its pivots in bearings.
- the rods and pivots of the axle constituting zones of lesser mechanical resistance are provided to take up the forces involved. against their respective bearing due to their small dimensions, in particular their small diameter.
- the watch axes are traditionally turned in 20AP steel, then hardened.
- the pivots are then rolled to obtain the required surface condition and surface hardness.
- the hardness typically reaches at least 700HV.
- This operation which consists of steps of polishing and surface hardening of the surface of the pivot, is complex and delicate, and requires a great deal of know-how which is strongly linked to the mastery of the process by the person skilled in the art who performs it. 'applied.
- 20AP steel contains lead (0.2% by mass) and will soon have to be replaced by another lead-free steel such as FinemacTM (or 20C1A).
- FinemacTM or 20C1A
- the manufacture of these pins is identical: they are turned from bar before hardening, then heat-treated and hardened to increase their hardness. Stress relieving ensures the release of internal stresses and prevents these axes from breaking like glass during impact.
- the main defect of this steel is that it lacks hardness at the level of the pivots and therefore also requires a rolling operation to reach the final properties required.
- These axes in 20AP steel or Finemac are also ferromagnetic and can induce disturbances in rate if the movements with which they are equipped are subjected to magnetic fields, by residual magnetization.
- the patent application EP2757423 discloses a solution for hardening an austenitic steel or an austenitic cobalt alloy or an austenitic nickel alloy by means of a thermochemical treatment, aimed at integrating into the interstitial sites of the crystal lattice of the alloy of the atoms carbon or nitrogen intended to reinforce the material before rolling the pivot, while limiting the risk of corrosion of the axle.
- the hardnesses thus reached are close to 1000 HV, which theoretically positions this type of part at a better level than 20AP steel parts.
- An alternative described in the patent application EP2757424 and making it possible to overcome rolling is to constitute all or part of the axle, but in any case the pivot or pivots, in metal material hardened by hard ceramic particles (metal matrix composite or MMC). It is a material partially composed of particles with a hardness greater than or equal to 1000 HV, with a size between 0.1 and 5 microns.
- the exemplified materials have 92% tungsten carbide (WC) particles embedded in a nickel matrix, which are mixed before being injected into a mold in the shape of the axle. After injection, the blank thus obtained is sintered and the axis is polished, in particular at the level pivots, using a diamond paste.
- a metal matrix composite axle with 92% WC and 8% nickel has a toughness of 8 MPa.m 1/2 and a hardness greater than 1300 HV.
- the use of composites comprising particles which risk detaching from them entails a risk .
- the object of the invention is to provide a watch spindle making it possible to remedy the drawbacks mentioned above and to improve the watch spindles known from the prior art.
- the invention proposes a hard and tenacious watch pin whose manufacturing process is simplified.
- an axis according to the invention is defined by claim 1.
- An oscillator according to the first aspect of the invention is defined by claim 12.
- a horological movement according to the first aspect of the invention is defined by claim 13.
- a timepiece according to the first aspect of the invention is defined by claim 14.
- the timepiece is for example a watch, in particular a wristwatch.
- the timepiece comprises a timepiece movement 110, in particular a mechanical movement.
- the watch movement comprises an oscillator 100, in particular a balance oscillator 8 - hairspring.
- the pendulum is for example driven on an axis 1 of the pendulum.
- the first functional portion is made of ceramic and the first functional portion has a first outer diameter D1 of less than 0.5 mm, or even less than 0.4 mm, or even less than 0.2 mm, or even less than 0.1 mm.
- axis 1 comprises a first pivot 21a, a first shank 22a, a portion 33 for receiving a plate 9, a plate 34 for receiving the balance 8, a portion 32 for receiving the balance 8, a portion 31 for receiving a spiral ferrule (not shown), a second pivot 21b and a second rod 22b.
- the shank part has a dimension greater than 0.1 mm, or even greater than 0.2 mm, or even greater than 0.25 mm in at least one direction, or even in all directions.
- the pivot part has a dimension greater than 0.04 mm, or even greater than 0.05 mm, or even greater than 0.1 mm in at least one direction, or even in all directions.
- the first rod part comprises a longitudinal section of the rod (or at least the outer surface of a section of the rod) over a length of at least 0.2 mm.
- the first pivot part comprises a longitudinal section of the pivot (or at least the outer surface of a section of the pivot) over a length of at least 0.1 mm.
- the first two functional portions are made of ceramic and each of the first two functional portions has a first outer diameter D1 of less than 0.5 mm, or even less than 0.4 mm, or even less than 0.2 mm, or even less than 0.1 mm.
- the first and second pivots 21a, 21b ensure a pivoting function and a force recovery function in the event of an impact or, more generally, in the event of acceleration undergone by the timepiece equipped with the axis.
- the first and second rods 22a and 22b perform a force recovery function in the event of impact or, more generally, in the event of acceleration undergone by the timepiece equipped with the spindle.
- the portions 31, 32 and 33 each provide a reception function.
- the second functional portion has a second outside diameter D2 of less than 2 mm, or even less than 1 mm, or even less than 0.5 mm.
- the second functional portion is made of ceramic.
- the ratio of the dimension of the second diameter to the dimension of the first diameter is less than 0.9, or even less than 0.8, or even less than 0.6, or even less than 0.5, or even less than 0.4.
- first functional portion and/or the second functional portion is made of ceramic means that this functional portion is entirely made of ceramic.
- the realization of the functional portion in a material composed of ceramic grains bonded together by a non-ceramic matrix, such as a metal matrix is excluded.
- ceramic is meant a homogeneous or substantially homogeneous material, including at the microscopic level.
- the ceramic is homogeneous in at least one direction, or even in all directions, over a distance greater than 6 ⁇ m, or even greater than 10 ⁇ m, or even greater than 20 ⁇ m.
- the ceramic does not have any non-ceramic material in at least one direction, or even in all directions, over a distance greater than 6 ⁇ m, or even greater than 10 ⁇ m, or even greater than 20 ⁇ m.
- zirconium oxide and/or alumina may be the preponderant elements in the ceramic. Nevertheless, the proportion by weight or by mole of zirconium oxide and/or alumina can be less than 50%.
- the ceramic may be predominantly or mainly (in mass or in mole) composed of silicon nitride.
- silicon nitride may be the preponderant element in ceramics. Nevertheless, the proportion by mass or by mole of silicon nitride can be less than 50%.
- the ceramic can be one of the ceramics in the table below: main component Secondary component(s) and proportions Commercial references / resulting composition Hardness [HV1] Breaking stress [MPa] Tenacity [MPa.m 1 ⁇ 2] ZrOz Y 2 O 3 3% mol TOSOH TZ3Y 1200-1400 900 - 1500 5 to 10 ZrOz MgO 3.5wt% Metoxit PSZ 1500 1500 10 ZrOz Al 2 O 3 20wt% TOSOH TZ3Y20A 1400-1600 1600-2000 5 to 8 Y 2 O 3 3% mol ZrOz Al 2 O 3 21.5wt% Panasonic Nano Zr 1100-1300 900-1300 8 to 18 CeOz 10.6wt% If 3 N 4 KYOCERA SN-235P 1200-1600 600-850 5 to 8.8 B4C TiB 2 5 to 6.9 TiB 2 CNT TiB 2 - TiC - CNT 3 to 5.2
- the injection or the pressing of a preform of which only the ends would be ground makes it possible to optimize the process, in particular by saving the manufacturing cycle time.
- CIP cold isostatic pressing
- the pivots are not marked during shocks and performance is maintained over time.
- these pivots will not deform, unlike steel pivots which can bend and thereby affect the chronometry of the timepiece.
- the ceramics as presented above make it possible to maintain the geometric integrity of the pivots over time.
- Ceramics also offer the additional advantage of being non-magnetic, and of not influencing the rate of the timepiece when it is subjected to a magnetic field, in particular a magnetic field greater than 32 kA/m (400G) .
- the entire shaft is made of ceramic.
- the ceramic part it is conceivable to limit the ceramic part to the first functional portion which includes at least one pivot and/or at least one rod.
- the first portion has a surface of revolution, in particular a cylindrical surface or a conical surface or a frustoconical surface or a surface with a curved generatrix.
- the shank and the pivot can be confused or at least not be delimited by a clear border like a staff.
- the shank and the pivot can be separated by a frustoconical surface or a surface with a curved generatrix.
- Two variants of a first embodiment of an assembly 41 comprising a shaft 1 as described above and at least one guide 51, in particular a bearing 51, the shaft being intended to rotate or pivot in the at least one bearing, are represented respectively on the figure 2 And 3 .
- the guide may take the form of a conventional damping bearing.
- the at least one bearing 51 comprises a pivot stone 511 provided to cooperate with a cylindrical or frustoconical section of a pivot 21' and a counter support stone 512 provided to cooperate with one end 212' from pivot. The stones therefore cooperate with the pivot 21' to pivot and receive, or axially delimit, the axis in the guide.
- the axle 1 comprises a pivot 21' having a domed or convex end 212'.
- the axle 1 comprises a pivot 21" having a hollowed or concave end 212".
- pins in ceramic a material that is both hard and tough, makes it possible to obtain geometries that can optimize and sustain contact at the level of the pivot and the bearing in which it pivots, in particular at the level of the pivot ends. . This would be difficult to envisage with conventional alloys such as rolled 20AP steel where the risk of loss of performance when worn would be greater, in particular due to excessive contact pressures.
- a second embodiment of an assembly 42 comprising an axle 1 as described previously and at least one guide, in particular a bearing 52, the axle being intended to rotate or pivot in the at least one guide, is represented on there figure 4 .
- the at least one guide 52 comprises a raceway 521 and balls 522, the balls cooperating by contact on a pivot 21* provided with one end conical 212* to guide the axis in the guide.
- the end of the pivot 21* could alternatively have a tapered surface. The balls thus roll both on the raceway and on the pivot.
- FIG 6 And 7 illustrate the advantages of a ball bearing designed to cooperate with a balance-spring type oscillator.
- the figure 6 And 7 obtained respectively by measuring in different clock positions an oscillator cooperating with a conventional damping bearing and by measuring in different clock positions an oscillator cooperating with a ball bearing, that the operation of the oscillator oscillator cooperating with a ball bearing exhibits deviations of quality factor between the different horological positions lower than those induced by the operation of the oscillator cooperating with a conventional damping bearing.
- the use of ceramics for the manufacture of the balls and the pivot makes it possible to optimize the use of a ball bearing and to significantly reduce the differences in quality factor between the different horological positions occupied by the part. of watchmaking.
- a second embodiment of a clock axis 1' according to the invention is described below with reference to the figure 5 .
- This pin 1' is intended to be attached to a pivot pin 6, in particular a pivot pin made of a separate material, in particular a free-cutting steel.
- the first functional portion may comprise a pivot 2a
- the second functional portion may for example take the form of a portion 35 intended to be fixed, in particular by driving in or welding, within a bore 36 formed on the body of the pivot axis 6.
- the invention has been described previously applied to a balance shaft. However, this invention can obviously be applied to any other watchmaking axis, for example a pivoting axis of a watchmaking wheel set such as a wheel set taking part in the finishing line of a watch movement, in particular a center wheel set, or a large average moving wheel, or a small average moving wheel, or a second moving wheel.
- a pivoting axis of a watchmaking wheel set such as a wheel set taking part in the finishing line of a watch movement, in particular a center wheel set, or a large average moving wheel, or a small average moving wheel, or a second moving wheel.
- a horological axis according to the invention can also be implemented within the framework of an optimization of a horological escapement and thus allow the pivoting of an escapement wheel or of a blocker or of an anchor taking part in the exhaust.
- this invention can be applied to any horological mobile taking part in an additional horological function, such as a calendar or a chronograph.
- the first functional portion can perform a translation function.
- the horological spindle is here in the form of a pin 1" comprising a first functional portion 2a which is in the form of a shank 22a.
- the latter cooperates with a groove 53 formed within a horological component, for example a chronograph hammer 91, so as to guide said component in translation, in particular to guide translation of said component in the longitudinal direction of said groove.
- the pin 1" has a second functional portion which is in the form of a shank 45 intended to be driven into a bore 46 of a timepiece blank 81.
- the first and second functional portions are delimited by a range 450, in particular a plate 450.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Sliding-Contact Bearings (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Electromechanical Clocks (AREA)
- Rolling Contact Bearings (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22216886.6A EP4177677A1 (de) | 2016-06-13 | 2016-06-13 | Uhrachse |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19183765.7A EP3584640B1 (de) | 2016-06-13 | 2016-06-13 | Oszillator für uhr |
EP16174244.0A EP3258325B1 (de) | 2016-06-13 | 2016-06-13 | Uhrenwelle |
EP22216886.6A EP4177677A1 (de) | 2016-06-13 | 2016-06-13 | Uhrachse |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
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EP16174244.0A Division EP3258325B1 (de) | 2016-06-13 | 2016-06-13 | Uhrenwelle |
EP19183765.7A Division EP3584640B1 (de) | 2016-06-13 | 2016-06-13 | Oszillator für uhr |
Publications (1)
Publication Number | Publication Date |
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EP4177677A1 true EP4177677A1 (de) | 2023-05-10 |
Family
ID=56120978
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22216886.6A Pending EP4177677A1 (de) | 2016-06-13 | 2016-06-13 | Uhrachse |
EP19183765.7A Active EP3584640B1 (de) | 2016-06-13 | 2016-06-13 | Oszillator für uhr |
EP16174244.0A Active EP3258325B1 (de) | 2016-06-13 | 2016-06-13 | Uhrenwelle |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19183765.7A Active EP3584640B1 (de) | 2016-06-13 | 2016-06-13 | Oszillator für uhr |
EP16174244.0A Active EP3258325B1 (de) | 2016-06-13 | 2016-06-13 | Uhrenwelle |
Country Status (5)
Country | Link |
---|---|
US (2) | US20170357213A1 (de) |
EP (3) | EP4177677A1 (de) |
JP (2) | JP7214335B2 (de) |
CN (2) | CN107490950B (de) |
CH (1) | CH712552B1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4177677A1 (de) * | 2016-06-13 | 2023-05-10 | Rolex Sa | Uhrachse |
EP3273304B1 (de) * | 2016-07-19 | 2021-11-10 | Nivarox-FAR S.A. | Bauteil für uhrwerk |
EP3594757B1 (de) * | 2018-07-10 | 2021-05-26 | Blancpain SA | Uhrwerkskomponente mit nicht magnetischem wellenteil aus keramik |
JP7143675B2 (ja) * | 2018-08-14 | 2022-09-29 | セイコーエプソン株式会社 | 時計用部品、ムーブメントおよび時計 |
EP3627238A1 (de) | 2018-09-21 | 2020-03-25 | Nivarox-FAR S.A. | Elastisches halterungsorgan für die befestigung einer uhrenkomponente auf einem halteelement |
EP3671368B1 (de) * | 2018-12-20 | 2022-11-23 | The Swatch Group Research and Development Ltd | Lager, insbesondere zur stossdämpfung, und drehteil eines uhrwerks |
EP3722887A1 (de) | 2019-04-12 | 2020-10-14 | Rolex Sa | Herstellungsverfahren einer rotationsfläche einer uhrwerkskomponente |
CH718969A2 (fr) | 2021-09-09 | 2023-03-15 | Rolex Sa | Élément inertiel pour mouvement horloger, résistant aux champs magnétiques. |
EP4242752A1 (de) | 2022-03-11 | 2023-09-13 | ETA SA Manufacture Horlogère Suisse | Vorrichtung zum führen einer welle einer unruh mit spiralfeder |
EP4242753A1 (de) | 2022-03-11 | 2023-09-13 | ETA SA Manufacture Horlogère Suisse | Vorrichtung zum führen einer welle einer unruh mit spiralfeder |
WO2024074517A1 (fr) | 2022-10-03 | 2024-04-11 | Rolex Sa | Axe horloger |
EP4386485A1 (de) | 2022-12-16 | 2024-06-19 | Rolex Sa | Verfahren zur herstellung einer uhrenkomponente |
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CH705906A2 (fr) * | 2011-12-15 | 2013-06-28 | Eta Sa Mft Horlogere Suisse | Palier antichoc de pièce d'horlogerie en céramique. |
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EP2757424A1 (de) | 2013-01-17 | 2014-07-23 | Omega SA | Bauteil für Uhrwerk |
EP2757423A1 (de) | 2013-01-17 | 2014-07-23 | Omega SA | Bauteil für Uhrwerk |
EP2727880B1 (de) * | 2012-11-05 | 2016-06-08 | GFD Gesellschaft für Diamantprodukte mbH | Dreidimensionales, mikromechanisches Uhrwerksbauteil mit einer Fase und Verfahren zu dessen Herstellung |
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-
2016
- 2016-06-13 EP EP22216886.6A patent/EP4177677A1/de active Pending
- 2016-06-13 EP EP19183765.7A patent/EP3584640B1/de active Active
- 2016-06-13 EP EP16174244.0A patent/EP3258325B1/de active Active
-
2017
- 2017-06-09 US US15/618,859 patent/US20170357213A1/en not_active Abandoned
- 2017-06-12 CN CN201710439362.4A patent/CN107490950B/zh active Active
- 2017-06-12 CN CN202110419759.3A patent/CN113110010A/zh active Pending
- 2017-06-12 JP JP2017114859A patent/JP7214335B2/ja active Active
- 2017-06-13 CH CH00766/17A patent/CH712552B1/fr unknown
-
2022
- 2022-07-29 US US17/877,578 patent/US11982977B2/en active Active
- 2022-11-04 JP JP2022176828A patent/JP2023011848A/ja active Pending
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US20020114225A1 (en) * | 2001-02-15 | 2002-08-22 | Konrad Damasko | Clockwork |
US6755566B2 (en) * | 2001-02-15 | 2004-06-29 | Konrad Damasko | Clockwork |
GB2416408B (en) * | 2003-10-20 | 2006-06-07 | Gideon Levingston | Balance wheel, balance spring and other components and assemblies for a mechanical oscillator system and method of manufacture |
EP2142965B1 (de) * | 2007-04-26 | 2010-11-10 | ETA SA Manufacture Horlogère Suisse | Schwenkeinrichtung für eine welle in einer uhr |
CH705905A2 (fr) * | 2011-12-15 | 2013-06-28 | Eta Sa Mft Horlogere Suisse | Palier antichoc à membrane pour pièce d'horlogerie. |
CH705906A2 (fr) * | 2011-12-15 | 2013-06-28 | Eta Sa Mft Horlogere Suisse | Palier antichoc de pièce d'horlogerie en céramique. |
EP2727880B1 (de) * | 2012-11-05 | 2016-06-08 | GFD Gesellschaft für Diamantprodukte mbH | Dreidimensionales, mikromechanisches Uhrwerksbauteil mit einer Fase und Verfahren zu dessen Herstellung |
EP2735540A1 (de) * | 2012-11-22 | 2014-05-28 | Diamaze Microtechnology S.A. | Zusammengesetztes mikromechanisches Bauteil mit Beschichtung, Verfahren zu dessen Herstellung sowie dessen Verwendung |
EP2757424A1 (de) | 2013-01-17 | 2014-07-23 | Omega SA | Bauteil für Uhrwerk |
EP2757423A1 (de) | 2013-01-17 | 2014-07-23 | Omega SA | Bauteil für Uhrwerk |
Also Published As
Publication number | Publication date |
---|---|
US20170357213A1 (en) | 2017-12-14 |
CH712552A2 (fr) | 2017-12-15 |
US20220373977A1 (en) | 2022-11-24 |
JP2023011848A (ja) | 2023-01-24 |
CN107490950B (zh) | 2021-05-07 |
JP2018028529A (ja) | 2018-02-22 |
JP7214335B2 (ja) | 2023-01-30 |
EP3258325A1 (de) | 2017-12-20 |
EP3584640B1 (de) | 2023-01-11 |
CH712552B1 (fr) | 2021-12-15 |
CN113110010A (zh) | 2021-07-13 |
CN107490950A (zh) | 2017-12-19 |
US11982977B2 (en) | 2024-05-14 |
EP3258325B1 (de) | 2019-10-30 |
EP3584640A1 (de) | 2019-12-25 |
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