EP4242752A1 - Vorrichtung zum führen einer welle einer unruh mit spiralfeder - Google Patents

Vorrichtung zum führen einer welle einer unruh mit spiralfeder Download PDF

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Publication number
EP4242752A1
EP4242752A1 EP22161628.7A EP22161628A EP4242752A1 EP 4242752 A1 EP4242752 A1 EP 4242752A1 EP 22161628 A EP22161628 A EP 22161628A EP 4242752 A1 EP4242752 A1 EP 4242752A1
Authority
EP
European Patent Office
Prior art keywords
rotation shaft
contact
pivot
shaft
guide
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
Application number
EP22161628.7A
Other languages
English (en)
French (fr)
Inventor
Thierry Conus
Raphaël Courvoisier
Jean-Luc Helfer
Sylvain Huot-Marchand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP22161628.7A priority Critical patent/EP4242752A1/de
Priority to US18/170,009 priority patent/US20230288878A1/en
Priority to JP2023033408A priority patent/JP7523613B2/ja
Priority to KR1020230031338A priority patent/KR20230133797A/ko
Priority to CN202310229875.8A priority patent/CN116736675A/zh
Priority to CN202320452023.0U priority patent/CN219496898U/zh
Publication of EP4242752A1 publication Critical patent/EP4242752A1/de
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/02—Shock-damping bearings
    • 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
    • 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
    • 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
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • 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
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/008—Jewel bearings
    • G04B31/0087—Jewel bearings with jewel hole only
    • 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
    • G04B31/02—Shock-damping bearings
    • G04B31/04—Shock-damping bearings with jewel hole and cap jewel
    • 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
    • G04B31/08—Lubrication

Definitions

  • the invention relates to a device for guiding a rotating shaft of a spiral spring balance of a timepiece.
  • the invention also relates to a watch movement and a timepiece respectively comprising such a device for guiding a rotating shaft of a spiral spring balance.
  • the document CH 239 786 describes a device for guiding a pivot at one end of the rotation shaft of a spiral balance.
  • the device is arranged with an olive stone and a stop inclined relative to the balance shaft.
  • the shaft is guided without play. Friction is therefore independent of the position of the watch. In a horizontal position of the watch, the additional friction of the cylindrical part of the pivot against the olive stone is thus similar to that experienced in a vertical position. On the other hand, the amplitude is reduced for all positions, which constitutes a disadvantage for controlling precision.
  • the document EP 3 382 472 A1 describes a guide bearing for a pivot of a rotation shaft of a spiral balance of a timepiece.
  • a guide bearing may be provided on each side of the ends of the rotating shaft.
  • the guide bearing can be constituted in one embodiment of three curved blades in the shape of a spiral regularly spaced from each other, a first end of each blade is fixed to a ring coaxial with the rotation shaft while a second end of each blade comes into contact with one end of the rotation shaft of the balance to hold it radially.
  • the guide bearing is made of a metallic material.
  • the guide bearing made of a metallic material does not sufficiently reduce the forces in contact with the shaft or the pivot on the shaft. Under these conditions, there is too much energy loss due mainly to friction with the end of the pivot or the rotation shaft, even if the friction no longer depends too much on the orientation of the watch, this which constitutes a disadvantage.
  • the “open” geometry of the guide bearing does not make it possible to retain the liquid lubrication generally deposited between the hole stone and the counter-pivot stone of a conventional damping bearing. In this case, the oil will migrate along the pivot then the shaft. Eventually, the pivot will rub “dry” in its bearing, which will further accelerate its wear.
  • the support stone can be slightly inclined to position the pivot of the shaft in the hole of the hole stone with a slight angular play, but avoiding having too significant angular offsets at the ends of the shaft due to gravity. In this case, the shaft is not held in a well-centered position.
  • the main aim of the invention is therefore to overcome the disadvantages of the state of the art by proposing a device for guiding a rotation shaft of a spiral balance with limited clearance of the shaft due to gravity and with a material and a geometry of the contact parts of the guide selected to reduce the support forces and therefore the friction forces.
  • the invention relates to a device for guiding a rotation shaft of a spiral balance, which comprises the characteristics defined in independent claim 1.
  • An advantage of the device for guiding a rotation shaft of a spiral balance lies in the fact that at least one end of the rotation shaft, for example at one end of the rotation shaft or a pivot fixed to one end of the rotation shaft, passes through a guide opening of a solid body, such as a hole stone.
  • the diameter of the hole is very slightly larger than the diameter of an end rod of the shaft or pivot attached to the shaft so as to allow slight play.
  • the material can be ceramic or glass or also a polymer filled or not to produce in particular the guide blade(s) and maintain the guide bearing of the device in contact with one end of the rotation shaft of the device. spiral balance. In addition to the chosen material, there must still be machining accuracy within a defined tolerance interval.
  • the geometry of the blade(s) can also be adapted to minimize the contact surface with the end of the shaft or the pivot on the shaft.
  • the invention also relates to a watch movement, which comprises such a device as defined in claim 24.
  • the invention also relates to a timepiece which comprises such a device as defined in claim 25.
  • the device for guiding a rotation shaft of the spiral balance also includes said shaft which is part of a whole with the guiding elements of this shaft and means for avoiding the effect of gravity.
  • a guide bearing may be provided, which may consist of contact parts such as flexible blades for example for positioning the axis of the spiral balance. This makes it possible in particular to limit parasitic movements of the hairspring balance, when the movement is in a horizontal position. In general, the movements caused are responsible for chronometric faults. In one embodiment with flexible blades, these blades have a centering effect on the axis of rotation of the spiral balance.
  • a solid body with a guide opening combined with the guide bearing of the rotation shaft of the spiral balance can be used. This means that when the movement is in a vertical position, the balance axis rests in the guide opening of the solid body. This makes it possible to mechanically limit the radial movement of the balance other than by simple stiffness of the blades. A greater radial displacement is a highly detrimental effect on chronometry.
  • components made of polymer materials are for example produced for flexible or elastic blades in a guide bearing or also for the coating of contact parts of such guide bearings.
  • flexible or elastic blades or contact parts it can also be imagined to use an elastomer provided with friction surfaces made of a material more suited to friction with suitable inserts.
  • THE figures 1 and 2 represent the spiral balance with the device 1 for guiding the rotation shaft assembly of said spiral balance in a simplified manner for the figure 1 and with means of reducing the effect of gravity for the figure 2 .
  • the spiral balance is formed of a serge 12 connected for example by three arms 11 to a central rotation shaft 6, and a spiral spring 13, having a first end connected to a not shown pin of a balance bridge. A second end of the spiral spring 13 is fixed directly, or indirectly via a ferrule, on the rotation shaft 6 of the spiral balance.
  • the device 1 for guiding the rotation shaft 6 of the spiral balance comprises said rotation shaft 6 and at least one guide bearing 2 preferably disposed at one end of the rotation shaft 6.
  • at least one guide bearing 2 preferably disposed at one end of the rotation shaft 6.
  • two guide bearings 2 of the rotation shaft arranged at both ends of the rotation shaft in particular to center the rotation shaft 6 along the central axis AC.
  • FIG. 2 completely defines the device 1 for guiding a rotation shaft 6 with one or more means 10 for reducing the effect of gravity, which are provided to keep the rotation shaft well centered, and arranged at least at one end of the rotation shaft.
  • at least one end of the rotation shaft comprises a pivot 6' fixed or directly integral with the shaft on the side of one end of the rotation shaft.
  • the end of the pivot 6' in the form of a rod, for example cylindrical, is inserted into the opening of a solid body 15, such as a pierced stone or hole stone.
  • the solid body 15 with a guide opening will serve as a stop to limit the travel of the pivot in the xy plane, which is the plane normal to the AC axis or, as mentioned below, to limit the angular play. It thus constitutes a means of reducing the movements of the shaft due to the effect of gravity depending on the orientation of the timepiece, particularly when the timepiece is positioned in a vertical direction.
  • the diameter of the opening of the solid body 15 with a guide opening is preferably slightly greater than the diameter of the rod of the pivot 6' so as to allow an angular play of less than 3° possible from the rotation shaft 6, but a radial clearance which must be sufficiently small to reduce the effect of gravity depending on the orientation taken by the timepiece.
  • the solid body 15 with a guide opening such as a pierced stone or hole stone has its opening centered on the axis AC of the rotation shaft 6 and the same is true for the bearing 2 for guiding the rotation shaft 6, which can be arranged on the interior side of the timepiece and below the solid body 15 with guide opening.
  • the solid body 15 with a guide opening which can for example be a stone with a hole 15, is in principle held in a chat 17 housed in a block 19, which is itself fixed to a blank of the timepiece not shown.
  • the chaton 17 also includes a counter-pivot part 14 to support the end of the pivot 6' fixed or integral with the shaft at the end of the rotation shaft 6.
  • the counter-pivot part 14 is substantially mounted parallel to the solid body 15 and on one side opposite the guide bearing 2. This counter-pivot part 14 can be held in place by elastic means not shown.
  • each end rod of the rotation shaft 6 or pivots 6' passes through the respective through opening of the solid body 15 to possibly come into direct contact with the respective counter-pivot part 14.
  • a solid body 15 with a guide opening can be made of any type of solid material, for example metal, ceramic, or any type of hard material that is easily achievable or machinable.
  • two means 10 are provided for reducing the effect of gravity arranged on the side of the two ends of the rotation shaft, and a guide bearing 2 mounted on the side of an upper end of the rotation shaft 6 by example on the dial side.
  • a pivot 6' is produced at each end of the rotation shaft 6 in one-piece form with the rotation shaft.
  • the pivot 6' can also be fixed to the end of the rotation shaft 6.
  • each pivot 6' has a cylindrical end rod to be inserted with a certain clearance into each respective guide opening of the solid body(s) 15.
  • each guide bearing 2 mounted respectively on the side of each end of the rotation shaft 6, for example at the location of two pivots 6' fixed respectively to the ends of the rotation shaft 6 or coming from one piece with the rotation shaft to form a one-piece structure.
  • Each guide bearing 2 described in more detail with reference to the figures 3 And 4 below, includes contact and holding parts of the ends of the rotation shaft given that the rotation shaft 6 linked to the spiral balance is always in reciprocating rotation in normal operation relative to the guide bearing 2 which is fixedly mounted in or on the less a static organ, which can be a blank, or preferably the block 19 or even preferably, the bezel 17.
  • At least all the parts in contact with the guide bearing 2 and the rotation shaft 6 are advantageously made of a material whose modulus of elasticity (Young's modulus) is less than or equal to 100 GPa.
  • the material may be ceramic, glass or a charged or unfilled polymer and a list of these materials will be given in more detail in the second part of the detailed description.
  • a radial movement limiting element such as a solid body 15 with a guide opening, which can for example be a stone with a hole to avoid too much play of the rotation shaft 6 depending on the orientation of the timepiece. It is further favored to find materials to reduce the coefficient of friction of the contact of these materials for guiding the rotation shaft 6.
  • THE figures 3a, 3b and 3c represent a first embodiment of the bearing 2 for guiding the rotation shaft 6 linked to the spiral balance.
  • the general shape of the guide bearing 2 is generally cylindrical on the periphery to be housed and fixed in a blank, or the block 19 or even preferably, the bezel 17.
  • at least one guide blade 3 is provided to come into contact at one of its ends 4 with the rotation shaft 6 or on an attached part of the rotation shaft, which can be a pivot.
  • At least one guide bearing 2 comprises, on a first side of the central axis AC, a support part 5, which is a support surface 5 of any shape geometric adapted to make point contact or on a contact line with the rotation shaft 6 or the pivot mounted on the rotation shaft.
  • the support surface can also be made in the shape of a V, or a bearing, or the like, and is arranged to center the axis of rotation of a shaft 6 on a plane bisecting the support surface 5.
  • This surface support 5 is symmetrical.
  • the same guide bearing 2 comprises, on a second side of the axis of revolution, which is opposite the first side, at least one holding element 4 at the free end of the blade 3, which is arranged substantially diametrically opposite the support surface 5. It is understood that the support surface 5, symmetrical with respect to its bisecting plane, comprises two elementary support surfaces, of the V-shaped surface in this case.
  • all the holding elements 3, 4 with the contact surface 40 are arranged to exert on a shaft 6 a resulting elastic return force directed towards the central axis AC, and to prevent a radial exit, out of this guide bearing 2, a shaft 6 inserted axially in the direction of the axis of revolution in this same guide bearing 2.
  • a single blade 3 having a contact surface 40 to hold the rotation shaft against the V-shaped surface 5 is difficult to produce because depending on the orientation of the timepiece the spiral balance is too heavy to be held by the single blade provided.
  • the blade 3 up to its free end is of rectangular cross section so as to have a flat contact portion 40 in contact with the end of the shaft 6 or the pivot 6' on a contact line.
  • at least the free end of the blade 3 has a lenticular section geometry to have only one point of contact on the portion 40 in order to reduce friction in contact with the end of the rotation shaft 6 or of the pivot mounted on the rotation shaft 6.
  • each support part 5 can be produced for example in the form of a convex structure or portion of a ball.
  • many other structures can be imagined to have such punctual contact.
  • For contact along a contact line it may also be a cylindrical structure or portion of a support part arranged along an axis parallel to the axis of rotation of the rotation shaft or any other structure. It can be imagined a combination of point contact or along a line of contact.
  • any geometric shape can be proposed to make point contact or on a contact line with the rotation shaft or the pivot mounted on the rotation shaft.
  • FIG. 4 represents a second embodiment of the bearing 2 for guiding the device 1 for guiding the rotation shaft 6 of the spiral balance.
  • This guide bearing 2 can comprise at least one contact blade 3 and two support parts 5, which are preferably two other contact blades 3.
  • the guide bearing 2 is composed of a peripheral ring and three blades 3 in the form of turns to move in the direction of the rotation shaft 6 to come into contact with the rotation shaft 6 in order to hold it and guide it along the central axis AC.
  • the free end 4 of each blade 3 comes into direct contact with the rotation shaft 6 to hold it, center it and guide it along the central axis AC.
  • the three blades 3 can be of another shape and section other than rectangular than those of the turns.
  • each blade is rectilinear arranged angularly and regularly spaced 120° from one another to each contact the rotation shaft regularly. It can still be envisaged to have more than three contact blades with the rotation shaft.
  • the guide bearing 2 of this second embodiment can be obtained in one-piece form in a ceramic, glass or filled or unfilled polymer material, in particular below the limit threshold of the modulus of elasticity less than or equal to 100 GPa and/or have the lowest possible coefficient of friction, for example at least less than or equal to 0.15.
  • Both the part of the rotation shaft 6 in contact with parts of the guide bearing 2 are made of the same material or a different material or coating fulfilling the conditions defined by the threshold of the modulus of elasticity or having a coefficient of friction as low as possible, for example at least less than or equal to 0.15.
  • FIG. 5 represents an embodiment of the device for guiding a rotation shaft 6, which is substantially similar to what has already been described in figure 2 . Under these conditions, only the structure or elements which differ from those already described in the figure 2 .
  • the structure, which is presented, is schematically that of a shock absorber modified with a guide bearing 2 of the guide device 1 according to the invention.
  • the guide device 1 therefore comprises the guide bearing 2, the solid body 15 with a guide opening and the counter-pivot part 14.
  • the guide bearing 2 is the first element mounted at one end of the rotation shaft 6 or of the pivot 6' fixed or coming from the material with the rotation shaft 6 at its end.
  • the solid body 15 with guide opening is mounted above the guide bearing 2 on the end of the rotation shaft 6 or the pivot 6', while the counter-pivot part 14 is mounted above the body solid 15 on a side opposite the guide bearing 2 and above the end of the rotation shaft 6 or the pivot 6'.
  • the guide bearing 2, the solid body 15 with guide opening and the counter-pivot part 14 are mounted or fixed successively in a bezel 17.
  • the bezel 17 is for example fixedly housed in a block 19, which is itself fixed to a blank or plate of the timepiece not shown.
  • the chaton 17 can comprise a peripheral part of conical shape to be guided and centered in a housing of complementary conical shape of the block 19.
  • the chaton 17 can still come to rest against a lower edge of the block 19.
  • the bezel 17 can also include a rim of annular shape in the upper part surrounded by a cylindrical portion for mounting the counter-pivot stone 14.
  • this counter-pivot stone 14 can be held in place with the other elements cited in block 19 by elastic means 20, which can be in the form of a split metal ring of the fixing spring type resting on an upper edge of block 19.
  • This ring split metal 20 can serve as a base for the shock absorber of the guide bearing 2 of the guide device 1 according to the invention.
  • the guide bearing 2 and the solid body 15 with guide opening form a one-piece structure.
  • the solid body 15 with guide opening and the guide bearing 2 are made of the same material and form a compact monobloc assembly (one piece) at the end of production. Thanks to the production of this one-piece structure of the bearing 2 and the solid body 15 with a guide opening, this makes it possible to guarantee machining precision and the positioning of the guide elements as well as the guide opening of the solid body while retaining the possibility of possibly lubricating the contact elements in a traditional manner.
  • the pivoting system which includes the device 1 for guiding a rotation shaft, must be in a closed space.
  • the solid body 15 with a guide opening is generally driven into the chaton 17, while the counter-pivot part 14 is placed or mounted on an upper part of the bezel 17.
  • the annular spring 20 therefore maintains the counter-pivot part 14 and the bezel 17 in the block 19.
  • ceramics to be used for the guide bearing and/or the rotation shaft it may be ceramics based on oxides, mainly alumina and zirconia, or silica.
  • zirconium oxide it can be used in zirconia stabilized with yttrium oxide (ZrO 2 +Y 2 O 3 ), which have a metastable tetragonal crystal structure, a grain size less than 0.50 ⁇ m, a density greater than 6.00 g/cm 3 and a hardness of approximately 1200 HV.
  • Zirconia can also be stabilized with cerium oxide (ZrO 2 + CeO 2 ) or magnesium oxide ((ZrO 2 + MgO), depending on the properties of the desired final material.
  • the composites are generally 80% 3Y-TZP / 20% Al 2 O 3 (ATZ) or 90% Al 2 O 3 / 10% 3Y-TZP (ZTA), combine the properties of aluminas and high purity zirconias to obtain final characteristics that offer the best of each material.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sliding-Contact Bearings (AREA)
EP22161628.7A 2022-03-11 2022-03-11 Vorrichtung zum führen einer welle einer unruh mit spiralfeder Pending EP4242752A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP22161628.7A EP4242752A1 (de) 2022-03-11 2022-03-11 Vorrichtung zum führen einer welle einer unruh mit spiralfeder
US18/170,009 US20230288878A1 (en) 2022-03-11 2023-02-16 Device for guiding a shaft of a sprung balance
JP2023033408A JP7523613B2 (ja) 2022-03-11 2023-03-06 ばね付きてんぷの軸を案内するための機器
KR1020230031338A KR20230133797A (ko) 2022-03-11 2023-03-09 스프링형 밸런스의 샤프트를 안내하기 위한 디바이스
CN202310229875.8A CN116736675A (zh) 2022-03-11 2023-03-10 用于引导游丝摆轮***的旋转轴的装置
CN202320452023.0U CN219496898U (zh) 2022-03-11 2023-03-10 用于引导游丝摆轮***的旋转轴的装置及钟表机芯和钟表

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22161628.7A EP4242752A1 (de) 2022-03-11 2022-03-11 Vorrichtung zum führen einer welle einer unruh mit spiralfeder

Publications (1)

Publication Number Publication Date
EP4242752A1 true EP4242752A1 (de) 2023-09-13

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Application Number Title Priority Date Filing Date
EP22161628.7A Pending EP4242752A1 (de) 2022-03-11 2022-03-11 Vorrichtung zum führen einer welle einer unruh mit spiralfeder

Country Status (4)

Country Link
US (1) US20230288878A1 (de)
EP (1) EP4242752A1 (de)
KR (1) KR20230133797A (de)
CN (2) CN116736675A (de)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239786A (fr) 1944-02-04 1945-11-15 Ditisheim & Cie Fabriques Vulc Dispositif de pivotement d'un arbre tel que l'arbre du balancier d'un mouvement d'horlogerie, d'un porte-échappement ou d'un compteur, par exemple.
CH269552A (fr) 1946-10-19 1950-07-15 Linde Air Prod Co Dispositif à pivot.
CH700496B1 (fr) * 2007-02-16 2010-09-15 Patek Philippe Sa Geneve Palier antichoc 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.
EP2142965B2 (de) * 2007-04-26 2014-02-26 ETA SA Manufacture Horlogère Suisse Schwenkeinrichtung für eine welle in einer uhr
CH707501A2 (fr) 2013-01-22 2014-07-31 Montres Breguet Sa Dispositif de guidage d'arbre d'horlogerie.
EP3106933A1 (de) * 2015-06-16 2016-12-21 Montres Breguet S.A. Magnetischer schwenkeinrichtung einer welle in einem uhrwerk
FR3039292A1 (fr) * 2015-07-24 2017-01-27 Commissariat Energie Atomique Ressort spiral et procede de realisation du ressort spiral
CH708089B1 (fr) * 2013-05-24 2017-07-14 Swatch Group Res & Dev Ltd Amortisseur de choc monobloc avec lubrification.
EP3382472A1 (de) 2017-03-30 2018-10-03 Rolex Sa Führungslager einer unruhwelle einer uhr
EP3396470A1 (de) 2017-04-24 2018-10-31 ETA SA Manufacture Horlogère Suisse Mechanische bremsvorrichtung für drehteil einer uhr
EP3258325B1 (de) 2016-06-13 2019-10-30 Rolex Sa Uhrenwelle

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239786A (fr) 1944-02-04 1945-11-15 Ditisheim & Cie Fabriques Vulc Dispositif de pivotement d'un arbre tel que l'arbre du balancier d'un mouvement d'horlogerie, d'un porte-échappement ou d'un compteur, par exemple.
CH269552A (fr) 1946-10-19 1950-07-15 Linde Air Prod Co Dispositif à pivot.
CH700496B1 (fr) * 2007-02-16 2010-09-15 Patek Philippe Sa Geneve Palier antichoc pour pièce d'horlogerie.
EP2142965B2 (de) * 2007-04-26 2014-02-26 ETA SA Manufacture Horlogère Suisse Schwenkeinrichtung für eine welle in einer uhr
CH705906A2 (fr) * 2011-12-15 2013-06-28 Eta Sa Mft Horlogere Suisse Palier antichoc de pièce d'horlogerie en céramique.
CH707501A2 (fr) 2013-01-22 2014-07-31 Montres Breguet Sa Dispositif de guidage d'arbre d'horlogerie.
CH708089B1 (fr) * 2013-05-24 2017-07-14 Swatch Group Res & Dev Ltd Amortisseur de choc monobloc avec lubrification.
EP3106933A1 (de) * 2015-06-16 2016-12-21 Montres Breguet S.A. Magnetischer schwenkeinrichtung einer welle in einem uhrwerk
FR3039292A1 (fr) * 2015-07-24 2017-01-27 Commissariat Energie Atomique Ressort spiral et procede de realisation du ressort spiral
EP3258325B1 (de) 2016-06-13 2019-10-30 Rolex Sa Uhrenwelle
EP3382472A1 (de) 2017-03-30 2018-10-03 Rolex Sa Führungslager einer unruhwelle einer uhr
EP3396470A1 (de) 2017-04-24 2018-10-31 ETA SA Manufacture Horlogère Suisse Mechanische bremsvorrichtung für drehteil einer uhr

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US20230288878A1 (en) 2023-09-14
CN219496898U (zh) 2023-08-08
CN116736675A (zh) 2023-09-12
JP2023133198A (ja) 2023-09-22

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