EP3818416A1 - Elastic retaining member for attaching a timepiece component to a support element - Google Patents
Elastic retaining member for attaching a timepiece component to a support elementInfo
- Publication number
- EP3818416A1 EP3818416A1 EP19774056.6A EP19774056A EP3818416A1 EP 3818416 A1 EP3818416 A1 EP 3818416A1 EP 19774056 A EP19774056 A EP 19774056A EP 3818416 A1 EP3818416 A1 EP 3818416A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- elastic
- holding member
- support element
- arms
- rigid
- 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
- 239000000463 material Substances 0.000 claims description 15
- 230000005489 elastic deformation Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 2
- 239000002210 silicon-based material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 description 15
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- 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
- 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
- G04B17/345—Details of the spiral roll
Definitions
- the invention relates to an elastic holding member for fixing a timepiece component to a support element.
- the invention also relates to an elastic retaining member - timepiece component and an assembly of such an assembly with the support element.
- the invention also relates to a method for producing such an assembly.
- the invention further relates to a timepiece movement comprising at least one such assembly.
- the invention finally relates to a timepiece comprising such a movement.
- elastic retaining members such as clockwork ferrules which participate in assemblies of balance springs on balance shafts in a clockwork movement and this, by elastic clamping.
- the purpose of the present invention is to overcome all or part of the drawbacks mentioned above by proposing an elastic holding member which has a high holding torque in particular to facilitate / simplify the assembly operations of an assembly of a member assembly.
- the invention relates to an elastic holding member for fixing a timepiece component to a support element, comprising an opening into which said support element is capable of being inserted, the support comprising rigid arms and elastic arms defined between connection zones 9 of the member 1, these arms helping to ensure elastic clamping of the support element in the opening, each rigid arm being provided with a single zone flat contact of the holding member able to cooperate with a corresponding convex contact portion of the support element.
- the elastic holding member is then able to withstand a substantial elastic tightening and therefore to store a large amount of elastic energy when it is constrained in order to restore a large holding torque, in particular thanks to a significant rigidity of this elastic holding member induced in particular by volumes (or quantities) of substantial material constituting its rigid arms which include the internal and external structures.
- these large volumes of material are more precisely included in the contact zones which are placed under loads (or under stresses) during the insertion of the support element into this holding member.
- this elastic holding member is configured so that this storage of elastic energy leads to stresses which remain admissible with regard to the material which constitutes such a holding member such as silicon.
- the contact areas 8 have a flat surface which allows them to achieve with the contact portions a contact configuration of the plano-convex type thus helping to avoid / prevent any damage to the holding member 1 by the appearance of cracks or cracks.
- the contact area is distributed over a convex inner face of each rigid arm of the holding member
- each contact zone is defined on a convex inner face of each rigid arm of the holding member extending over all or part of a thickness of this holding member;
- each contact zone is able to cooperate with the corresponding contact portion of the support element while being in a contact configuration of the plano-convex type
- the elastic holding member comprises as many contact zones as there are contact portions
- the elastic holding member comprises as many rigid arms as elastic arms;
- the rigid arms and the elastic arms are arranged in the holding member successively and alternately;
- each rigid arm is connected at its two opposite ends to two different elastic arms
- each rigid arm has a volume of material greater than the volume of material constituting each elastic arm
- each elastic arm has a cross section which is less than a cross section of each rigid arm; - Each elastic arm has a cross section which is constant throughout the body of this elastic arm;
- the elastic holding member comprises a point of attachment with the timepiece component
- the elastic retaining member is a ferrule for fixing the timepiece component such as a hairspring to a support element such as a balance shaft, and
- the elastic holding member is made of a material based on silicon.
- the invention also relates to an elastic retaining member assembly - a timepiece component for a timepiece movement of a timepiece comprising such a retaining member.
- the whole is in one piece.
- the invention also relates to an assembly for a timepiece movement of a timepiece comprising a resilient holding member - timepiece component assembly, said assembly being fixed to a support element.
- the invention further relates to a timepiece movement comprising at least one such assembly.
- the invention also relates to a timepiece comprising such a timepiece movement.
- the invention also relates to a method for producing an assembly of an elastic holding member - timepiece component assembly with a support element according to the preceding claim, comprising: a step of inserting the support element into the opening of the elastic holding member of said assembly, said step comprising a sub-step of elastic deformation of the elastic holding member provided with a displacement phase rigid arms of the elastic holding member inducing a double elastic deformation of the elastic arms of this elastic holding member, and
- a step of fixing the holding member on the support element comprising a substep of producing a radial elastic clamping of the holding member on the support element.
- FIG. 1 is a front view of an elastic holding member for fixing a timepiece component on a support element which is here in a constrained state, according to one embodiment of the invention
- FIG. 2 is a perspective view of the elastic holding member for fixing the timepiece component on the support element which is here in a state of rest, according to the embodiment of the invention
- FIG. 3 is a sectional view along III-III of Figure 2;
- FIG. 4 is an enlarged view of a part A of Figure 2;
- FIG. 5 shows a timepiece comprising a timepiece movement provided with at least one assembly comprising an elastic holding member - component assembly timepieces attached to a support element, according to one embodiment of the invention
- FIG. 6 shows a method of producing such an assembly of a resilient holding member assembly - timepiece component with a support element.
- Figures 1 to 4 show an embodiment of the elastic holding member 1 for fixing a timepiece component 2 on a support element 3.
- the elastic holding member 1 can be a ferrule for fixing the timepiece component 2 such as a hairspring to a support element 3 such as a balance shaft.
- this holding member 1 can be included in an assembly 120 elastic holding member - clockwork component visible in FIG. 5 and which is designed to be arranged in a clockwork movement 1 10 of a timepiece 100.
- Such an assembly 120 may be a single piece made of a so-called “fragile” material, preferably a micro-machinable material. Such a material can include silicon, quartz, corundum or even ceramic.
- the elastic retaining member 1 can be made of such a material called "fragile", the timepiece component 2 then being made of another material.
- This assembly 120 may be part of an assembly 130 for the watch movement 1 10, by being fixed to the support element 3 for example by elastic tightening. It will be noted that this assembly 130 has been devised for applications in the watchmaking field. However, the invention can perfectly be implemented in other fields such as aeronautics, jewelry, or even the automobile.
- Such a holding member 1 comprises an upper face and a lower face 12, preferably planar, respectively included in first and second planes P1 and P2 visible in FIG. 2, as well as external and internal structures 4a, 4b.
- These external and internal structures 4a, 4b respectively comprise external and internal peripheral walls of this holding member 1 and have different shapes. More specifically, with regard to the external structure 4a, it may have a generally hexagonal shape, in particular comprising parts having convex shapes.
- Each of these parts is included in a connection zone 9 connecting an elastic arm 7 to a rigid arm 6.
- the elastic arms 7 and rigid 6 are each an elongated part which connects parts of the holding member 1 between them .
- a rigid arm or an elastic arm extends longitudinally between two connecting zones 9 included in each of these arms 6, 7.
- each rigid arm is connected directly at each of its two ends opposite to an elastic arm.
- each rigid and elastic arm which are connected directly to each other comprise the connection zone 9 which they share and at the level of which the end of one is directly connected to the end of the other.
- the elastic and rigid arms are arranged successively and alternately in the holding member.
- Each rigid arm is connected to two different elastic arms, which elastic arms are connected “directly” to the other rigid arms of the member 1.
- This external structure 4a is in particular intended to be connected to the timepiece component 2 by means of at least one attachment point 1 1 arranged in the external peripheral wall of the holding member 1.
- the internal structure 4b has a non-triangular shape.
- This internal structure 4b which comprises the internal peripheral wall of this holding member 1, participates in defining an opening 5 of such a holding member 1 in which is intended to be inserted the support element 3.
- This opening 5 defines a volume in the holding member 1 which is less than that of a connecting part of one end of the support element 3 which is intended to be arranged there.
- this connecting part has a circular cross section and includes all or part of the contact portions 10 defined on the peripheral wall 13 of the support element 3.
- this support element 3 has a radius of curvature R1 visible in Figure 1.
- This holding member 1 comprises the rigid arms 6 and elastic arms 7 connecting the external and internal structures 4a, 4b between them. It will be noted that this holding member 1 comprises as many rigid arms 6 as there are elastic arms 7.
- the rigid arms 6 are here non-deformable or almost non-deformable and play the role of stiffening elements of the holding member 1.
- the elastic arms 7 they are able to deform mainly in tension but also in torsion.
- These rigid arms 6 and these elastic arms 7 are defined or even distributed successively and alternately in this holding member 1.
- these rigid arms 6 are interconnected by said elastic arms 7. More specifically, each elastic arm 7 is connected at its two opposite ends at the level of connection zones 9 to two different rigid arms 6.
- Such rigid and elastic arms 6, 7 include, without limitation and not being exhaustive:
- the inner faces of the elastic arms 7 are essentially flat and the inner faces of the rigid arms 6 are non-planar, for example being convex in shape.
- the convex inner face of each rigid arm 6 therefore comprises the flat contact area 8.
- This contact area 8 is able to cooperate with the corresponding contact portion 10 of the support element 3.
- Such a contact area 8 is defined in the inner face extending substantially over all or part of the thickness of the holding member 1.
- this contact area 8 is flat, comprising a surface which is wholly or partly planar.
- the contact zones 8 of the rigid arms 6 are provided in particular for cooperating with the contact portions 10 according to a contact configuration of the plano-convex type in which configuration where the planar surface of each contact zone 8 cooperates with the portion corresponding contact 10 of convex shape of the support element 3.
- this convex shape of each contact portion 10 is appreciated relative to the flat surface of each corresponding contact area 8 with regard to which this portion 10 is arranged .
- the planar surface of the contact zone 8 forms a plane tangent to the diameter of the support element. In other words, the flat surface is perpendicular to the diameter and therefore to the radius R1 of the support element.
- this contact pressure is estimated from the Hertz pressure equation conventionally but not exclusively used for the determination of a contact pressure between cylindrical or spherical parts having diameters or different radii of curvature. In this case, this Hertz pressure is defined according to the following equation:
- the corresponding to the support element 3 has different radii of curvature R2 and Ri and are in a contact configuration of the convex-convex type.
- the contact area 8 of each rigid arm 6 is flat and therefore does not have a radius of curvature R2.
- Such a contact area 8 is able to cooperate with the corresponding contact portion 10 of the support element 3 in the contact configuration of the plano-convex type.
- the contact pressure defined by the Hertz pressure equation is lower than that relating to the contact configurations of the convex-convex type during which the contact zone 8 which then has a radius of curvature R2 is able to cooperate with the corresponding contact portion 10 of the support element 3.
- This contact pressure present during the contact configuration of the plano-convex type is lower than those implemented in the other configurations described above. in particular because of the higher value in this context of the relative radius of curvature R resulting from the absence of a radius of curvature for each flat contact area 8 of the holding member 1 of this embodiment.
- the contact pressure is lower than those of these other contact configurations of at least 25%.
- the rigid and elastic arms 6, 7 connect the external and internal structures 4a, 4b to each other, moreover each comprising a part of these external and internal structures 4a, 4b.
- these rigid and elastic arms 6, 7 essentially allow a fixing of the elastic tightening type of the support element 3 to be made in the opening 5 made in this holding member 1 which is defined by the structure internal 4b and in particular by the internal peripheral wall of this holding member 1.
- these rigid arms 6 therefore comprise the only contact zones 8 of the holding member 1 with the support element 3 which can be defined in all or part of the interior faces of these rigid arms 6
- the contact area 8 of each rigid arm 6 otherwise called “contact interface” is provided to cooperate with a peripheral wall 13 of the connecting part of the support element 3 in particular with the corresponding contact portion 10 defined in this peripheral wall 13 of the support element 3
- the holding member 1 then comprises three contact zones 8 which participate in achieving a precise centering of the timepiece component 2, for example a balance spring, in the timepiece movement 1 10.
- each rigid arm 6 has a volume of material which is substantially greater or strictly greater than the volume of material constituting each elastic arm 7.
- the elasticity or the rigidity of an arm in this holding member 1 is defined relative to the contact zones 8 of this member 1 more precisely relative to the intensity of the deformation of these rigid or elastic arms when a force is applied to these contact zones 8.
- the external and internal structures 4a, 4b, and in particular the internal and external peripheral walls are separated from each other in this holding member 1 by a variable distance E which then evolves according to whether these structures are included for example in a rigid arm 6 or even an elastic arm 7.
- this difference E is a maximum difference E1 when it is defined between parts of walls internal and external peripherals included in each rigid arm 6, ie the maximum distance E1 present between the inner and external faces of this rigid arm 6.
- this maximum distance E1 is defined between the contact zone 8 of each rigid arm 6 and an opposite part of the external peripheral wall of this rigid arm 6.
- this distance E is a minimum distance E2 when it is defined between parts of the external and internal peripheral walls included in the elastic arms 7, or the minimum distance E2 present between the inner and outer faces of this elastic arm 7. It is therefore understood here that each elastic arm 7 has a cross section which is less than a cross section of each rigid arm 6.
- each elastic arm 7 has a surface which is less than a surface of the cross section of each rigid arm 6. It will be noted that the cross section of the elastic arm 7 is constant or substantially constant throughout the body of this elastic arm 7 while the cross section of the rigid arm 6 is inconsistent / variable throughout the body of this arm rigid 6. In addition, we note that:
- each rigid arm 6 is preferably a full or partially full section which is perpendicular to the longitudinal direction along which the body of this rigid arm 6 extends, and
- each elastic arm 7 is preferably a full or partially full section which is perpendicular to the longitudinal direction in which the body of this elastic arm 7 extends.
- Such a configuration of the rigid and elastic arms 6, 7 allows the holding member 1 to store a greater amount of elastic energy for the same tightening in comparison with the holding members of the prior art. Such a quantity of elastic energy stored in the holding member 1 then makes it possible to obtain a greater holding torque of the holding member on the support element 3 in the assembly 130 of the assembly 120 member holding - timepiece component with this support element 3.
- such a configuration of the holding member 1 makes it possible to store elastic energy ratios which are 6 to 8 times greater than those of state of the art maintenance bodies.
- each elastic arm 7 in the holding member 1 allows, during tightening insertion, a deformation of each elastic arm 7 making it possible to accommodate the deformation of the whole of the organ holding 1 with the geometry of the connecting part of the support element 3 on which it is assembled.
- the mode of deformation that each elastic arm undergoes is a toroidal torsion coupled to a radial expansion.
- the invention also relates to a method for producing the assembly 130 of the assembly 120 elastic holding member - timepiece component with the support element 3.
- This method comprises a step d insertion 13 of the support element 3 into the opening 5 of the holding member 1.
- the end of the support element is presented at the entrance to the opening 5 defined in the lower face 12 of the holding member 1 in anticipation of the introduction of the connecting part of this support element 3 in the volume defined in this opening 5.
- This step 13 comprises a sub-step of elastic deformation 14 of the holding member 1 in particular of a central zone of this holding member 1 comprising said opening 5 resulting of the application of a contact force on the contact zones 8 of the rigid arms 6 by the contact portions 10 of the peripheral wall 13 of the connection part of the support element 3.
- This elastic deformation of the zone central in fact generates a deformation of the lower face 12 of the retaining member 1 which then has an essentially concave shape in particular at a part of this face 12 included in the central zone d e the holder 1.
- this lower face 12 is no longer flat and is therefore no longer entirely included in the second plane P2.
- this elastic deformation of the holding member 1 results from the application of the force of contact on the contact zones 8 of the rigid arms 6 by the contact portions 10 of the peripheral wall 13 of the support element 3.
- Such a deformation substep 14 comprises a phase of displacement 15 of the rigid arms 6 under the action of the contact force applied to them.
- Such displacement of the rigid arms 6 is carried out in a direction between a radial direction B1 relative to a central axis C common to the support element 3 and to the holding member 1, and a direction B2 coincides with this axis central C.
- this direction B2 is perpendicular to the direction B1 and is oriented in a defined direction from the lower face 12 to the upper face.
- the contact force is preferably perpendicular or substantially perpendicular to said contact area 8.
- each elastic arm 7 is driven at its two ends in the same direction of rotation B4 by the rigid arms 6 in movement, to which arm 6 of such ends are connected.
- Only a part of the body of these elastic arms 7 is torsionally deformable here the ends of these arms 7.
- Such a first deformation contributes in particular to improving the insertion of the support element 3 into the opening 5 of the holding member 1 by helping to avoid any breakage of the holding member 1 and / or any appearance of a crack in this member 1 during its assembly with the support element 3.
- each elastic arm 7 is pulled at its two ends in the longitudinal direction B3 in opposite directions by the rigid arms 6 in movement, to which arms 6 of such ends are connected.
- Such a second deformation contributes in particular to the fact that the holding member 1 stores a large amount of elastic energy.
- This double elastic deformation of the elastic arms 7 can be carried out simultaneously or substantially simultaneously, or alternatively or successively. It will be noted in the context of the implementation of the deformation phase that when this double elastic deformation is carried out successively or substantially successively, the first deformation can then be carried out before the second deformation.
- This method then comprises a step of fixing 16 of the holding member 1 on the reinforcing element 3.
- a fixing step 16 comprises a substep of making 17 of a radial elastic tightening of the holding member 1 on the support element 3. It is therefore understood that in such a state of stress, the holding member 1 stores a large amount of elastic energy which contributes to giving it a substantial holding torque, in particular allowing optimal turning by elastic tightening.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Springs (AREA)
- Micromachines (AREA)
- Clamps And Clips (AREA)
- Adornments (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18196014.7A EP3627235A1 (en) | 2018-09-21 | 2018-09-21 | Elastic holding member for fixing a timepiece component on a support element |
PCT/EP2019/073513 WO2020057969A1 (en) | 2018-09-21 | 2019-09-04 | Elastic retaining member for attaching a timepiece component to a support element |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3818416A1 true EP3818416A1 (en) | 2021-05-12 |
Family
ID=63678510
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18196014.7A Withdrawn EP3627235A1 (en) | 2018-09-21 | 2018-09-21 | Elastic holding member for fixing a timepiece component on a support element |
EP19774056.6A Pending EP3818416A1 (en) | 2018-09-21 | 2019-09-04 | Elastic retaining member for attaching a timepiece component to a support element |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18196014.7A Withdrawn EP3627235A1 (en) | 2018-09-21 | 2018-09-21 | Elastic holding member for fixing a timepiece component on a support element |
Country Status (6)
Country | Link |
---|---|
US (1) | US11906930B2 (en) |
EP (2) | EP3627235A1 (en) |
JP (1) | JP7194812B2 (en) |
KR (1) | KR102629670B1 (en) |
CN (1) | CN112740117B (en) |
WO (1) | WO2020057969A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3627238A1 (en) * | 2018-09-21 | 2020-03-25 | Nivarox-FAR S.A. | Elastic holding member for fixing a timepiece component on a support element |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1584994B1 (en) | 2004-04-06 | 2009-01-21 | Nivarox-FAR S.A. | Collet without deformation of the spiral fixing radius and fabrication method of such a collet |
ATE445865T1 (en) * | 2006-02-24 | 2009-10-15 | Patek Philippe Sa | ELASTIC FASTENING ARRANGEMENT FOR WATCHES |
CH698794B1 (en) * | 2006-02-24 | 2009-10-30 | Patek Philippe Sa | Timepiece component e.g. hairspring, maintaining elastic body e.g. collet, for use during assembling and operation of watch, has arms presenting variable width to make uniform distribution of stresses exerted on arm by support element |
EP1826634A1 (en) * | 2006-02-28 | 2007-08-29 | Nivarox-FAR S.A. | Micromechanical element provided with form-locking opening for axle assembly |
EP1857891A1 (en) | 2006-05-17 | 2007-11-21 | Patek Philippe Sa | Hairspring-collet assembly for a timepiece movement |
DE602008003097D1 (en) * | 2008-04-21 | 2010-12-02 | Rolex Sa | Micromechanical component with opening for mounting on an axis |
CH700059A2 (en) | 2008-12-15 | 2010-06-15 | Montres Breguet Sa | Curve elevation hairspring i.e. Breguet hairspring, for movement of timepiece, has elevation device placed between external spire and terminal curve, and two unique parts integrated for increasing precision of development of hairspring |
ATE534940T1 (en) * | 2009-02-13 | 2011-12-15 | Patek Philippe Sa Geneve | CLOCK MOVEMENT COMPONENT |
EP2550566B1 (en) * | 2010-03-25 | 2019-11-06 | Rolex S.A. | Split collet with a non-circular opening |
CH702931A2 (en) * | 2010-04-01 | 2011-10-14 | Patek Philippe Sa Geneve | escape anchor elastically mounted. |
JP6301834B2 (en) * | 2011-09-29 | 2018-03-28 | ロレックス・ソシエテ・アノニムRolex Sa | Beard spring / beard ball integrated assembly |
JP6118037B2 (en) * | 2012-05-08 | 2017-04-19 | セイコーインスツル株式会社 | Beardball, balance and watch |
CH707288B1 (en) * | 2012-11-22 | 2017-07-31 | Mft Et Fabrique De Montres Et De Chronomètres Ulysse Nardin Le Locle S A | Elastic holding device of two parts. |
CH709056A2 (en) * | 2013-12-23 | 2015-06-30 | Eta Sa Manufacture Horlogère Suisse | Mechanism of clock synchronization. |
EP2916177B1 (en) | 2014-03-05 | 2018-11-07 | Nivarox-FAR S.A. | Hairspring intended for being clamped by a spring washer |
EP3106929A1 (en) | 2015-06-16 | 2016-12-21 | Nivarox-FAR S.A. | Part with improved welding surface |
EP3106931A1 (en) | 2015-06-16 | 2016-12-21 | Nivarox-FAR S.A. | Part with uncoupled welding surface |
EP3309625B1 (en) * | 2016-10-13 | 2020-07-29 | Nivarox-FAR S.A. | Hairspring intended for being attached by a spring washer |
JP6772790B2 (en) | 2016-11-29 | 2020-10-21 | セイコーエプソン株式会社 | How to make watch parts and how to make watches |
CH714001B1 (en) * | 2017-07-18 | 2021-05-31 | Richemont Int Sa | Regulating organ for clockwork movement. |
-
2018
- 2018-09-21 EP EP18196014.7A patent/EP3627235A1/en not_active Withdrawn
-
2019
- 2019-09-04 JP JP2021512488A patent/JP7194812B2/en active Active
- 2019-09-04 US US17/272,714 patent/US11906930B2/en active Active
- 2019-09-04 WO PCT/EP2019/073513 patent/WO2020057969A1/en unknown
- 2019-09-04 KR KR1020217007726A patent/KR102629670B1/en active IP Right Grant
- 2019-09-04 CN CN201980062071.5A patent/CN112740117B/en active Active
- 2019-09-04 EP EP19774056.6A patent/EP3818416A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
KR102629670B1 (en) | 2024-01-25 |
JP2021536005A (en) | 2021-12-23 |
CN112740117A (en) | 2021-04-30 |
CN112740117B (en) | 2023-01-24 |
JP7194812B2 (en) | 2022-12-22 |
US20210216043A1 (en) | 2021-07-15 |
KR20210043656A (en) | 2021-04-21 |
WO2020057969A1 (en) | 2020-03-26 |
EP3627235A1 (en) | 2020-03-25 |
US11906930B2 (en) | 2024-02-20 |
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