EP2206022B1 - Stossdämpfende lagerung für eine uhr - Google Patents

Stossdämpfende lagerung für eine uhr Download PDF

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Publication number
EP2206022B1
EP2206022B1 EP08847741.9A EP08847741A EP2206022B1 EP 2206022 B1 EP2206022 B1 EP 2206022B1 EP 08847741 A EP08847741 A EP 08847741A EP 2206022 B1 EP2206022 B1 EP 2206022B1
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EP
European Patent Office
Prior art keywords
jewel
organ
pivot
pierced
endstone
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.)
Not-in-force
Application number
EP08847741.9A
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English (en)
French (fr)
Other versions
EP2206022A1 (de
Inventor
Pierre Gygax
Lucas Humair
Loïc Pellaton
Sandrine Benz
Romain Nagel
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.)
Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
Original Assignee
Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
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 Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA filed Critical Manufacture et Fabrique de Montres et Chronometres Ulysse Nardin Le Locle SA
Publication of EP2206022A1 publication Critical patent/EP2206022A1/de
Application granted granted Critical
Publication of EP2206022B1 publication Critical patent/EP2206022B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • G04B31/04—Shock-damping bearings with jewel hole and cap jewel

Definitions

  • the present invention relates to a bearing for timepieces and more particularly of the type for damping shocks.
  • Such bearings are, most frequently, used to ensure the pivoting of the rockers. Indeed, these are provided with small diameter pivots, and therefore delicate. Since, moreover, the mass of the balance is relatively large, the risk is high that a pivot breaks under the effect of a shock.
  • the bearings for pivoting a rocker generally comprise two stones, a pierced stone, in which is engaged a pivot of the balance and a pivot-against stone, which serves as a support and limiting the axial displacement of the pivot.
  • These stones are made of a nonmetallic hard material such as corundum.
  • shock absorbing bearings There are many types of shock absorbing bearings. The most frequently used include a body provided with positioning and sliding surfaces, a pierced stone and a counter-pivot stone together forming a pivot member, these stones being disposed in the body and positioned on the positioning and sliding surfaces. A spring maintains the stones in the rest position, while allowing them to move within a certain limit under the effect of a shock, the axis of the balance then arriving against stops.
  • Such bearings have, for example, been sold under the trademark Incabloc ®.
  • Shock absorbing bearings are also known in which the elastic members and the pivot members form a whole. They have the advantage of being less expensive.
  • the document US 3,942,848 describes a shock absorbing bearing comprising an annular body intended to be driven in a bridge or a plate.
  • a spring formed to define a conical housing is attached to the body.
  • This housing is a truss inside which a conical pivot of the balance comes to engage.
  • pivoting conditions are unfavorable, metal-to-metal pivoting generating significant friction.
  • a bearing type crapaudine cooperating with a conical pivot is poorly suited for a timepiece quality, the positioning of the balance is not very accurate.
  • shock-absorbing bearings comprising a central part forming a pivoting member and surrounded by a rosette formed in a plate of elastic rigid material.
  • the rosette consists of springs extending radially, their central end cooperating with the central part.
  • the document EP 1'696'286 discloses a shock absorbing bearing comprising a pivot member provided with a pierced stone and a counter-pivot stone. Said bearing also comprises a fixing member whose purpose is to ensure the mounting of the bearing on a frame. It further comprises an elastic member which connects the pivot member to the fastener.
  • the pierced stone, the counter-pivot stone and the elastic member are three distinct elements. The bearing will therefore be relatively difficult to assemble.
  • a main object of the present invention is to provide a simplified structure shock-absorbing bearing which can be manufactured largely by photolithography processes associated with either etching processes or material growth processes, while allowing lubrication of pivoting.
  • the shock absorbing bearing for a timepiece comprises a pivot member provided with a pierced stone intended to receive a pivot, and a counter-pivot stone, distinct from the stone. breakthrough, forming a support of said pivot. It further comprises a fixing and abutment member for mounting it on a frame and a resilient member connecting the pivot member, and thus the counter-pivot stone and the pierced stone, to the fastener member. and comprising at least one arm.
  • said elastic member and one of the two stones of the pivot member are constituted of the same monolithic piece, the stone against pivot being constitutive of said monolithic piece.
  • the part is advantageously made of a monocrystalline material. Its manufacture is particularly well controlled when this material is silicon.
  • a flat surface being easier to achieve than a curved surface, it is more interesting that it is the counter-pivot stone which is constitutive of the monolithic piece.
  • cleaning holes in the counter-pivot stone facilitate the cleaning of the bearing, which is necessary if the latter is lubricated. These holes are offset with respect to the balance shaft.
  • the pierced stone on the monolithic piece In order to improve the fixing of the pierced stone on the monolithic piece, it is fixed rigidly to the monolithic piece, advantageously driven in a metal ring.
  • the latter may be provided with two pins engaged in a hole made in said monolithic piece. These pins pass through said monolithic piece and are fixed thereto.
  • the bearing may, in addition, comprise a fastener provided with two holes arranged so as to each receive one of said pins, in which they are fixed.
  • pins and the metal ring can be formed in one piece.
  • the pierced stone is fix the pierced stone directly on the monolithic piece.
  • the latter is provided with a core in which is housed and fixed said pierced stone, for example by means of glue.
  • the monolithic piece has a two-level structure and two elastic members, the counter-pivot stone and the first elastic member constituting the first level, the second elastic member the second level, the pierced stone being integral with said second elastic member.
  • the bearing comprises a second monolithic piece in which is fixed said pierced stone.
  • the second monolithic piece comprises a peripheral portion, a central portion and a second elastic member formed by arms connecting the peripheral portion to the central portion, the central portion being pierced at its center to form a hole in which the pierced stone is fixed.
  • FIG. 1 A first variant of a first embodiment of the invention is represented on the Figures 1 to 3 .
  • figures 1 and 2 illustrate a watch movement portion provided with bearings according to the invention, respectively seen in section and from above.
  • the movement comprises a frame comprising a plate 10 and a balance bridge 11, bearings 12 and 13 respectively mounted in holes 10a and 11a formed in the plate 10 and the bridge 11. These holes are coaxial, axis AA.
  • a rocker 14 is pivotally mounted in the bearings 12 and 13. It comprises an axis 16 provided at its two ends with tigers 17, which carry pivots 18.
  • the bearing 12 comprises a fixing member comprising two annular pieces 20 and 22, the piece 22, in the form of a cup, being pierced at its center with a hole 23, a monolithic piece 24 of monocrystalline material, and a pierced stone 26.
  • the piece 24, shown from above in perspective on the figure 3 has a round and flat shape. It comprises a central portion 27, a peripheral portion 28, of annular shape, and spirally wound arms, forming an elastic member 29, which connect the central portion 27 to the peripheral portion 28.
  • the central portion 27, disc is provided with a hole 27a in which is housed the pierced stone 26, fixed for example by gluing.
  • the central portion 27 forms a counter-pivot stone 31 defined by the bottom of the core 27a.
  • the counter-pivoting stone 31 constitutes, with the pierced stone 26, a pivoting member 32.
  • the portion of the central portion 27 forming the counter-pivot stone 31 is provided with holes 33 offset relative to the axis AA, thus facilitating cleaning of the landing.
  • the monolithic piece 24 is interposed between the annular pieces 20 and 22.
  • the piece 24, provided with the pierced stone 26, is disposed in the hole 10a of the plate 10, held radially by the wall of the hole 10a and axially by the annular pieces. 20 and 22.
  • Such a structure makes it possible to adjust the axial position of the balance 14.
  • the bearing 13 comprises a fixing and abutment member 34 consisting of an annular piece in the form of a cup, which defines a housing having an inner cylindrical wall 36 and a flat bearing surface 37 in the bottom of the cup. It is also pierced with a central hole 23. A truncated portion of cone 38 forms the free end of the cup. It retains and positions a mobile bolt carrier 40.
  • the bearing 13 also comprises a monolithic piece 24, provided with a pierced stone 26, in all respects similar to that fitted to the bearing 12.
  • the piece 24, provided with the pierced stone 26, is fixed in the housing formed by the cylindrical wall 36 and the bearing surface 37, advantageously by gluing. It could also be maintained axially similar to the bearing 12, by a ring driven on the cylindrical wall 36.
  • the rocker 14 is pivotally mounted by engagement of the pivots 18 in the hole of the pierced stones 26.
  • the rods 17 are engaged in the holes 23.
  • the rocker 14 In case of side impact, the rocker 14 is subjected to a force proportional to the acceleration. This force is transmitted to the bearings 12 and 13 via the pivots 18 which bear in the hole of the pierced stones 26. It has the effect of deforming the arms of the elastic member 29 until the axis 16 come to bear, by the rods 17, against the wall of the holes 23. The rocker 14 is then blocked by a portion of its axis which has dimensions much larger than those pivots 18. The structure is thus more robust.
  • one of the pivots 18 exerts a pressure on the counter-pivoting stone 31, which has the effect of axially deforming the arms of the elastic member 29.
  • the shaft 16 then bears against the plane wall adjacent to and surrounding the hole 23.
  • the arms of the elastic member 29 are dimensioned so that the axis 16 comes into contact with the annular parts 22 and 34 when the acceleration reaches about 500 g, both for the axial impact and radial.
  • the pierced stone 26 is housed in a ring 42 of metal, for example brass or nickel-based alloy.
  • the establishment of the stone 26 in the ring 42 is advantageously by driving.
  • the assembly thus obtained can also be driven into the core 27a.
  • the stone 26 and the ring 42 can be removed or moved to ensure a suitable distance between the stone 26 and the pivot-pivot stone 31. This distance is important to ensure good resistance of the oil. This is, in fact, retained by capillarity between the stone 26 and the counter-pivot stone 31. If the distance is too small, the amount of trapped oil is low. If, on the contrary, this distance is too great, the trapped oil drop does not hold well in place is likely to be expelled during a shock.
  • the stone 26 is not included in the thickness of the monolithic part 24, as is the case in the first variant. It is, on the contrary, interposed between the piece 24 and the annular piece 22, being fixed to the piece 24 by pins 43 engaged in holes in the ring 42 and in the central portion 27 of the monolithic piece 24.
  • the pins 43 can be driven into the ring 42 and glued into the piece 24.
  • the piece 24 is directly fixed by 10. The piece 22 therefore no longer ensures the axial positioning of the bearing 12. It has more, for function, that to serve as a stop to the shank 17 as explained above.
  • pins 43 are attached to the ring 42. It is obvious that they could also be manufactured in one piece with the ring 42, by machining, stamping or adding material.
  • FIG. 7 and 8 differs from that of figures 5 and 6 because the pins 43 protrude from the monolithic part 24.
  • a ring 44 of metal for example brass or gold, also provided with holes, serves as a housing at the ends of the pins 43. More specifically, the pins 43 are driven in the holes that includes the ring 44. In this way, it serves as a fixing piece, now in place the stone 26 on the part 24.
  • the ring 44 can be used to provide an aesthetic function, to represent for example, the logo of the watch as well as to ensure disassembly easier to achieve.
  • the monolithic piece 24 comprises, as before, a central portion 27 forming the counter pivot stone 31, and a peripheral portion 28.
  • the figures 9 and 10 represent a device according to this embodiment respectively seen in section and from above, and the Figures 11 and 12 the monolithic pieces 24 views on both sides.
  • the monolithic piece 24 has a two-level structure with, at the first level, a first set of three arms forming a first elastic member 45 connecting the peripheral portion 28 to the central portion 27, and the second level, three arms forming a second elastic member 46 secured to the peripheral portion 28 and enclosing the pierced stone 26.
  • the latter can be fixed to the elastic member 46 by gluing.
  • the elastic member 45 and the central portion 27 occupy a first level
  • the elastic member 46 and the stone 26 a second level
  • the peripheral portion 28 occupies the two levels.
  • the arms of the elastic members 45 and 46 have a meandering structure. They could however also have a spiral shape.
  • the manufacture of the piece 24 is done, as previously by photolithography and etching techniques.
  • a mask is placed on one of the faces of the plate in which the monolithic pieces are made, and this face is chemically etched on a little more than half the thickness.
  • the shapes of the constituent parts of the first level are defined.
  • the piece is turned over and a mask is arranged to define the structure of the second level.
  • the plate is, here too, attacked on a little more than half of the thickness. In this way, the two levels are perfectly defined and independent.
  • the monolithic pieces 24 are extracted from the base plate by attacking the periphery over the entire thickness.
  • the monolithic parts 24 are fixed to the frame of the movement in a manner identical to the variant shown in the drawings. figures 1 and 2 .
  • a third embodiment is shown, in two variants, on the figures 13 and 14 .
  • the device comprises, in addition to monolithic pieces 24, second monolithic pieces 47.
  • the parts 24 have a constant thickness. They each comprise the peripheral portion 28, the central portion 27 forming the counter pivot stone 31, and arms forming the elastic member 29.
  • the pierced stones 26 are each fixed to one of the monolithic pieces 47.
  • the latter comprise also a peripheral portion 48, a central portion 49 and an elastic member 51 formed of arms connecting the peripheral portion 48 to the central portion 49, which is pierced at its center, to form a hole 52 in which the pierced stone 26 is fixed, for example by gluing.
  • the fasteners 22 and 34 are each provided with two bearing surfaces 53 and 54, on which the monolithic parts 24 and 47 are respectively supported and fixed, for example by means of adhesive points. These members 22 and 34 are themselves respectively driven into the plate 10 and the bridge 11.
  • the monolithic pieces 24 and 47 are substantially thicker than in the variant of the figure 13 .
  • the monolithic piece 47 is provided with a recess 55 in which is fixed the pierced stone 26.
  • This hole 55 is pierced with a central hole 56 and lateral holes 57, one of which is visible in the drawing.
  • the holes 57 serve to facilitate cleaning, such as the holes 33 described with reference to the Figures 1 to 3 .
  • the monolithic piece 24 is provided with a central stud 58 engaged in the hole 56, with a slight clearance.
  • the end of the stud 58 acts as a counter-pivot stone 31.
  • this device during axial shocks is the same as for the embodiments described above. This is not the case during radial shocks. With this structure, as long as the shocks are weak, only the elastic member 51 is biased. If the shock is greater, the wall of the hole 56 bears against the stud 58, so that the elastic member 29 is also biased.
  • the bearings described above may be the subject of many other embodiments or variants, without departing from the scope of the invention.
  • the monolithic parts may be made of silicon or another preferably monocrystalline material easily machinable by photolithography and chemical etching techniques. These parts may, in addition, undergo surface treatments, for example be coated with a diamond layer or be oxidized.
  • the two stones 26 and 31 can also both be made monolithically with the elastic member.
  • the friction implies that a minimum force must be applied to the pivot to cause a displacement of the central portion 27. In other words, a disturbance generating a force below this minimum force, would not overcome the forces related to friction and the device would not be disturbed.
  • the figure 15 proposes an example illustrating such a friction element.
  • the pierced stone 26 of the pivoting member 32 comprises around it, a flange 26b whose walls define a first truncated cone.
  • the annular piece 34 comprises, around the hole 23 through which the tigeron 17 passes, a cup 50 whose walls define a second truncated cone.
  • the walls of the first and second truncated cones are arranged so that, when the resilient arms are in their rest position, they are flush with each other.
  • a slight prestress in the axis of pivoting supports the walls of the flange 26b against that of the cup 50.
  • the walls are substantially parallel, to avoid shocks between the two truncated cone.
  • the angle of the truncated cones may be relatively open, that is to say between about 120 and 180 degrees.
  • the value of the angle defines the friction generated between the two truncated cones and therefore the minimum force to be applied to cause a displacement of the central portion 27.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Adornments (AREA)
  • Sliding-Contact Bearings (AREA)

Claims (14)

  1. Stoßdämpfendes Lager für ein Uhrwerk, umfasstend:
    - ein Drehorgan (32), das mit einem Lochstein (26), der zur Aufnahme eines Drehzapfens (18) bestimmt ist, und mit einem Deckstein (31), der die Abstützung des Drehzapfens (18) bildet, ausgestattet ist, wobei der Deckstein (31) von dem Lochstein (26) unterschiedlich ist,
    - ein Befestigungs- und Anschlagorgan (20, 22, 34), das zur Sicherung seiner Montage auf einem Gestell bestimmt ist,
    - ein elastisches Organ (29), das das Drehorgan (32) und damit den Deckstein und den Lochstein mit dem Befestigungsorgan (20, 22, 34) verbindet und mindestens einen Arm umfasst,
    dadurch gekennzeichnet, dass das elastische Organ (29) und einer der zwei Steine (26, 31) des Drehorgans (32) Bestandteil eines selben monolithischen Teils (24) sind, wobei der Deckstein (31) Bestandteil des monolithischen Teils (24) ist.
  2. Lager nach Anspruch 1, dadurch gekennzeichnet, dass das monolithische Teil aus einem monokristallinem Material hergestellt ist.
  3. Lager nach Anspruch 2, dadurch gekennzeichnet, dass das monokristalline Material Silizium ist.
  4. Lager nach Anspruch 1, dadurch gekennzeichnet, dass der Deckstein (31) mit mindestens einem im Verhältnis zur Unruhachse (AA) versetzten Loch (33) ausgestattet ist.
  5. Lager nach Anspruch 1, dadurch gekennzeichnet, dass der Lochstein (26) fest an dem monolithischen Teil (24) befestigt ist.
  6. Lager nach Anspruch 5, dadurch gekennzeichnet, dass der Lochstein (26) in einen Metallring (42) eingepresst ist.
  7. Lager nach Anspruch 6, dadurch gekennzeichnet, dass der Ring (42) mit zwei Stiften (43) ausgestattet ist, die in ein in das monolithische Teil (24) eingearbeitetes Loch eingesetzt sind.
  8. Lager nach Anspruch 7, dadurch gekennzeichnet, dass die Stifte (43) das monolithische Teil (24) durchqueren und dort befestigt sind.
  9. Lager nach Anspruch 7, dadurch gekennzeichnet, dass es ferner ein Befestigungsteil (44) aufweist, das mit zwei Löchern ausgestattet ist, die derart ausgebildet sind, dass jedes einen der Stifte (43) aufnehmen kann, die in ihnen befestigt sind.
  10. Lager nach Anspruch 7, dadurch gekennzeichnet, dass die Stifte (43) und der Ring (42) aus einem einzigen Teil gebildet sind.
  11. Lager nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass das monolithische Teil (24) mit einer Ausfräsung (27a) ausgestattet ist, in die der Lochstein (26) geklebt ist.
  12. Stoßdämpfendes Lager für ein Uhrwerk, umfassend:
    - ein Drehorgan (32), das mit einem Lochstein (26), der zur Aufnahme eines Drehzapfens (18) bestimmt ist, und mit einem Deckstein (31), der die Abstützung des Drehzapfens (18) bildet, ausgestattet ist, wobei der Deckstein (31) von dem Lochstein (26) unterschiedlich ist,
    - ein Befestigungs- und Anschlagorgan (20, 22, 34), das zur Sicherung seiner Montage auf einem Gestell bestimmt ist,
    - ein erstes elastisches Organ (45), das den Deckstein (31) mit dem Befestigungsorgan (20, 22, 34) verbindet und mindestens einen Arm umfasst,
    dadurch gekennzeichnet, dass der Deckstein (31) und das erste elastische Organ (45) Bestandteile eines selben monolithischen Teils sind, das eine zweistufige Struktur aufweist, wobei der Deckstein (31) und das erste elastische Organ (45) die erste Stufe bilden, und ein zweites elastisches Organ (46), das die zweite Stufe bildet, wobei der Lochstein (26) mit dem zweiten elastischen Organ (46) fest verbunden ist.
  13. Stoßdämpfendes Lager für ein Uhrwerk, umfasssend:
    - ein Drehorgan (32), das mit einem Lochstein (26), der zur Aufnahme eines Drehzapfens (18) bestimmt ist, und mit einem Deckstein (31), der die Abstützung des Drehzapfens (18) bildet, ausgestattet ist, wobei der Deckstein (31) von dem Lochstein (26) unterschiedlich ist,
    - ein Befestigungs- und Anschlagorgan (20, 22, 34), das zur Sicherung seiner Montage auf einem Gestell bestimmt ist,
    - ein erstes elastisches Organ (45), das den Deckstein (31) mit dem Befestigungsorgan (20, 22, 34) verbindet und mindestens einen Arm umfasst,
    dadurch gekennzeichnet, dass der Deckstein (31) und das erste elastische Organ (45) Bestandteile eines selben monolithischen Teils (24) sind und dass das Lager ein zweites monolithisches Teil (47) umfasst, in dem der Lochstein (26) befestigt ist, wobei das zweite monolithische Teil (47) einen Umfangsabschnitt (48), einen zentralen Abschnitt (49) und ein zweites elastisches Organ (51) umfasst, das von Armen gebildet ist, die den Umfangsabschnitt (48) mit dem zentralen Abschnitt (49) verbinden, wobei der zentrale Abschnitt (49) in seiner Mitte durchbohrt ist, um ein Loch (52) zu bilden, in dem der Lochstein (26) befestigt ist.
  14. Lager nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass es ein Reibungs- oder Dämpfungselement aufweist, das dazu neigt, sich einer Störkraft entgegenzustellen, die derart gerichtet ist, dass eine Verlagerung des Drehorgans hervorgerufen wird.
EP08847741.9A 2007-11-07 2008-11-07 Stossdämpfende lagerung für eine uhr Not-in-force EP2206022B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01726/07A CH705112B1 (fr) 2007-11-07 2007-11-07 Palier amortisseur de chocs pour pièce d'horlogerie.
PCT/EP2008/065144 WO2009060074A1 (fr) 2007-11-07 2008-11-07 Palier amortisseur de chocs pour piece d'horlogerie

Publications (2)

Publication Number Publication Date
EP2206022A1 EP2206022A1 (de) 2010-07-14
EP2206022B1 true EP2206022B1 (de) 2015-06-03

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Application Number Title Priority Date Filing Date
EP08847741.9A Not-in-force EP2206022B1 (de) 2007-11-07 2008-11-07 Stossdämpfende lagerung für eine uhr

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EP (1) EP2206022B1 (de)
CH (1) CH705112B1 (de)
WO (1) WO2009060074A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011161139A1 (fr) * 2010-06-22 2011-12-29 The Swatch Group Research And Development Ltd Systeme antichoc de piece d'horlogerie
WO2013087173A1 (fr) 2011-12-12 2013-06-20 The Swatch Group Research And Development Ltd Palier antichoc pour piece d'horlogerie
CH707809B1 (fr) * 2013-03-19 2017-05-31 Nivarox Far Sa Palier pour mécanisme d'horlogerie.
EP2806314A1 (de) * 2013-05-24 2014-11-26 The Swatch Group Research and Development Ltd. Stoßdämpfer mit Bajonett
CH709867B1 (fr) 2014-07-14 2018-12-14 Mft Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle Sa Palier antichoc pour pièce d'horlogerie.
CH709908A1 (fr) * 2014-07-22 2016-01-29 Richemont Int Sa Palier amortisseur de choc pour pièce d'horlogerie.
CH710905A1 (fr) 2015-03-20 2016-09-30 Mft Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A Palier antichoc pour pièce d'horlogerie.
JP7100650B2 (ja) * 2017-02-13 2022-07-13 パテック フィリップ ソシエテ アノニム ジュネーブ 時計用駆動部材
EP3770699A1 (de) * 2019-07-26 2021-01-27 Comadur S.A. Stein, insbesondere für ein uhrwerk, und sein herstellungsverfahren

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US3942848A (en) * 1973-04-06 1976-03-09 Seitz S.A. Shock absorbing pivot bearing for rotary watch parts

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FR1585772A (de) * 1967-10-16 1970-01-30
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FR2279140A1 (fr) * 1973-12-18 1976-02-13 Epsilon Sarl Palier amortisseur de chocs
FR2363727A1 (fr) * 1976-09-06 1978-03-31 Cattin Sa Ets Perfectionnements aux paliers amortisseurs de chocs pour axes ou pivots
DE2854801A1 (de) * 1977-12-20 1979-06-21 Kif Parechoc Sa Verfahren zur herstellung eines metallischen zapfenlagers bzw. steins fuer ein in der uhrmacherei und der feinmechanik verwendung findendes lager und durch anwendung dieses verfahrens erhaltener stein
JP3718560B2 (ja) 1996-06-26 2005-11-24 昭男 平根 スポット溶接機
US6755566B2 (en) * 2001-02-15 2004-06-29 Konrad Damasko Clockwork
CH697017A5 (fr) 2003-03-26 2008-03-14 Franck Muller Watchland S A Dispositif anti-chocs pour mobile tournant sur un axe.
DE602005025585D1 (de) * 2005-02-23 2011-02-10 Eta Sa Mft Horlogere Suisse Stoßdämpfende Uhrenlagerung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942848A (en) * 1973-04-06 1976-03-09 Seitz S.A. Shock absorbing pivot bearing for rotary watch parts

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WO2009060074A1 (fr) 2009-05-14
CH705112B1 (fr) 2012-12-31
EP2206022A1 (de) 2010-07-14

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