EP4375761A1 - Elastisches halteelement zur befestigung einer uhrkomponente an einem trägerelement - Google Patents

Elastisches halteelement zur befestigung einer uhrkomponente an einem trägerelement Download PDF

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Publication number
EP4375761A1
EP4375761A1 EP22209691.9A EP22209691A EP4375761A1 EP 4375761 A1 EP4375761 A1 EP 4375761A1 EP 22209691 A EP22209691 A EP 22209691A EP 4375761 A1 EP4375761 A1 EP 4375761A1
Authority
EP
European Patent Office
Prior art keywords
holding member
support element
elastic holding
deformable
elastic
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
EP22209691.9A
Other languages
English (en)
French (fr)
Inventor
Ivan Hernandez
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.)
Nivarox Far SA
Original Assignee
Nivarox Far 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 Nivarox Far SA filed Critical Nivarox Far SA
Priority to EP22209691.9A priority Critical patent/EP4375761A1/de
Priority to JP2023184043A priority patent/JP2024076967A/ja
Priority to US18/500,250 priority patent/US20240176299A1/en
Priority to CN202311590337.8A priority patent/CN118092114A/zh
Publication of EP4375761A1 publication Critical patent/EP4375761A1/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
    • 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
    • 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 such as for example a ferrule for fixing a watchmaking component.
  • This member is configured to participate in fixing the timepiece component on a support element.
  • elastic holding members such as watchmaking ferrules which participate in assembling hairsprings on balance shafts in a watch movement, by elastic tightening.
  • the aim of the present invention is to overcome all or part of the drawbacks cited above by proposing an elastic holding member which has a significant holding torque, in particular to facilitate/simplify the operations of mounting an assembly of a holding member assembly.
  • elastic hold - watchmaking component with a support element as well as ensuring sufficient hold to guarantee maintaining position in the plane and guaranteeing its angular position during the life of the component.
  • the invention relates to an elastic holding member comprising a body provided with rigid portions and deformable portions each provided with a through hole, said member being intended for fixing a timepiece component on an element support and comprising an opening whose contour comprises three contact zones intended to come to bear on said support element, said contact zones each being included on an internal face of a receiving region of each deformable portion.
  • the invention also relates to an elastic holding member - timepiece component assembly for a watch movement of a timepiece comprising said holding member.
  • the whole is in one piece.
  • the invention also relates to an assembly for a watch movement of a timepiece comprising said elastic holding member assembly - timepiece component, said assembly being fixed to a support element.
  • the invention also relates to a watch movement comprising said at least one assembly.
  • the invention also relates to a timepiece comprising such a clockwork movement.
  • the elastic holding member 1 for fixing a timepiece component 2 on a support element 3.
  • the elastic holding member 1 may 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 - watchmaking component visible on the figure 2 and which is intended to be arranged in a watch movement 110 of a timepiece 100.
  • Such an assembly 120 can be a one-piece part made of a so-called “fragile” material, preferably a micro-machinable material. Such a material may include silicon, quartz, corundum or even ceramic.
  • this holding member 1 has a thickness of between 50 and 150 ⁇ m. Such a thickness is preferably of the order of 100 ⁇ m.
  • the elastic holding member 1 can be made of such a so-called “fragile” material, the timepiece component 2 then being made of another material.
  • This assembly 120 can be part of an assembly 130 for the watch movement 110, by being fixed to the support element 3 for example by elastic clamping. It should be noted that this assembly 130 was designed for applications in the watchmaking field. However, the invention can be perfectly implemented in other fields such as aeronautics, jewelry, or even automobiles.
  • Such a holding member 1 comprises an opening 5 also called “central opening " in which the support element 3 is intended to be inserted.
  • 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 comprises in whole or in part contact portions defined on a peripheral wall of the support element 3.
  • Such a member 1 also comprises an upper face and a lower face 12, preferably flat, included respectively in first and second planes P1 and P2 visible on the figure 1 which are parallel to each other.
  • This member 1 also includes internal and external peripheral walls 9a, 9b which connect the upper and lower faces 12 together.
  • the external peripheral wall 9b comprises a surface which externally delimits the contour of the holding member 1.
  • This peripheral wall 9b gives this member 1 an essentially hexagonal shape.
  • Concerning the internal peripheral wall 9a it comprises a surface which delimits the contour of an opening 5 of this holding member 1.
  • this internal peripheral wall 9a comprises contact zones 13 intended to come to bear on the support element 3.
  • the transverse dimension of the external peripheral wall 9b or of the internal peripheral wall 9a which is parallel to an axis of revolution A of the holding member 1 corresponds here to the thickness of this organ 1.
  • This holding member 1 comprises a body provided with three deformable portions 7 also called “flexible portions ” or “elastic portions ”. Each deformable portion 7 is configured to return to its original shape after having been deformed. In other words, these portions are reversibly deformable portions 6.
  • the body of this organ 1 is rigid, or essentially rigid, with the exception of the deformable portions 7 which it comprises. In other words, this body comprises deformable portions 7 and rigid portions 6.
  • rigid portions 6 is meant portions 6 which resist pressure or deformation, i.e. non-deformable portions.
  • the rigid portions 6 are configured to be stressed mainly in traction. In this configuration, these rigid portions 6 resist pressure or tensile deformation.
  • each deformable portion 7 is arranged in the body of said member 1 at an equal distance from each of the other deformable portions 7 which are arranged in its direct vicinity, or closest neighborhood, in said body.
  • each deformable portion 7 extends between the internal and external peripheral walls 9a, 9b of the body of the member 1. It will be noted that such deformable portions 7 are similar to each other. In this member 1, these portions 7 form a protrusion in the internal peripheral wall 9a of the body of the member 1 which extends towards the center O of the holding member 1.
  • Each deformable portion 7 comprises a reception region 8a, two connection regions 8b and an external region 8c. These regions 8a, 8b, 8c together delimit the perimeter of a through hole 4 of this portion 7.
  • This contact zone 13 comprises a substantially hollow or substantially concave part in which two support zones are included. These two support zones are able to cooperate with the corresponding convex contact portion of the support element 3. Such support zones are defined/included in the surface of this contact zone 13 by extending substantially over all or part of the thickness of the holding member 1. Furthermore, these support zones are flat, each comprising a surface which is entirely or partly flat. In the contact zone 13, the two support zones are respectively included in different planes together forming an obtuse angle. These two support zones are disjointed by being spaced from one another. In other words, the contact zone 13 comprises a connection zone of the two support zones. This connection zone preferably has a rounded shape.
  • These support zones are intended in particular to cooperate with the contact portions according to a contact configuration of the plane-convex or even plane-cylinder type if we take into account the cylindrical shape of the support element 3.
  • the flat surface of each support zone cooperates with the corresponding contact portion of convex shape of the support element 3.
  • this convex shape of each contact portion is appreciated relative to the flat surface of each zone of corresponding support with regard to which this portion is arranged.
  • this flat surface of each support zone forms a plane tangent to the diameter of the support element 3. In other words, the flat surface is perpendicular to the diameter and therefore to the radius of the support element.
  • each contact zone 13 of the holding member 1 makes it possible to produce a contact pressure between this holding member 1 and the support element 3 during the creation of a mechanical connection between them, while significantly reducing the intensity of the stresses at the level of these support zones and the corresponding contact portions of the support element 3 during assembly and/or or the fixing of this holding member 1 with the support element 3, which constraints being likely to damage the holding member 1 by the appearance of breaks/breakages or even cracks.
  • this contact zone 13 in the internal face 8 of each deformable portion 7 makes it possible to create a contact pressure between this member 1 and the support element 3 during the creation of a connection mechanically between them, while significantly reducing the intensity of the stresses at the level of this contact zone 13 and the corresponding contact region of the support element 3 during the assembly and/or fixing of this member 1 with the support element 3, which constraints are likely to damage said member 1 by the appearance of breaks/breakages or even cracks.
  • these deformable portions 7 therefore comprise the only contact zones 13 of the member 1 with the support element 3 which can be defined in all or part of the internal faces 8 of these portions 7. reference to the figure 1 , these contact zones 13 are three in number and can participate in the production precise centering of the watch component 2, for example a hairspring, in the watch movement 110.
  • the external region 8c is included between the external peripheral wall 9b of the member 1 and part of the periphery of the through hole 4 while also being connected to the two connection regions 8b. Concerning these two connection regions 8b, they are each included between one end of a rigid portion 6, a part of the external peripheral wall 9b and a part of the periphery of the through hole. Note that these two connection regions also connect the reception regions 8a and external 8c to each other.
  • the deformable portion 7 comprises the through hole 4, also called obviously, and which is defined in the thickness of this member 1.
  • This through hole 4 opens both into the upper and lower faces 10 of the organ 1.
  • this through hole 4 opens at one end into the upper face of the deformable portion 7 and at another end into the lower face 10 of this portion 7.
  • This hole 4 extends in the direction of the axis of revolution A and this, from the upper face to the lower face 10 or vice versa. In other words, this hole 4 connects these two faces 10 together.
  • This through hole 4 defines a volume of void or even a volume of void of material or absence of material. We therefore understand that this volume corresponds to a variable or configurable volume.
  • This volume comprises an open enclosure delimited by a peripheral wall of this hole 4.
  • Such a through hole 4 represents approximately between 20 and 80 percent of the body of the deformable portion 7.
  • this through hole 4 represents 30 percent of this body.
  • each deformable portion 7 is configured to modify the volume defined by this through hole 4 when this portion 7 is placed under stress by the support element 3.
  • the rigid portions 6 extend between the internal and external peripheral walls 9a, 9b of the body of the member 1. These rigid portions 6 preferably have an elongated shape. In fact, each rigid portion extends longitudinally between two deformable portions 7 to which it is connected. We therefore understand that each rigid portion 6 is directly connected at each of its two opposite ends to two deformable portions 7. In addition, it will therefore be noted that the deformable portions 7 and rigid portions 6 are arranged successively and alternately in the holding member 1. Each rigid portion 6 is connected to two different deformable portions 7, which deformable portions 7 are connected “directly” to the other rigid portions 6 of the member 1. It will be noted that the rigid portions 6 are here undeformable or almost -non-deformable and play the role of stiffening elements of the holding member 1.
  • each deformable portion 7 the reception region 8a, the two connection regions 8b and the external region 8c bound/surround/delimit the through hole 4. More precisely, these regions 8a to 8c are configured to be deformed by different ways since they are constrained by the insertion of the support element 3 in the opening 5 of the member 1. In fact, for each deformable portion 7 each of these regions 8a to 8c has a coefficient of deformation C rr , C rl , C re whose value decreases, as this region 8a, 8b, 8c is moved away from the contact zone 13 of the reception region 8a.
  • the deformation coefficient C rr also called the average deformation coefficient C rr of the reception region 8 has a high value or greater than the value of the coefficient C rl of the two connection regions 8b and that of the coefficient C re of the outer region 8c.
  • the coefficients C rl of the two connection regions 8b have similar values or substantially similar which are higher than that of the coefficient C re of the external region 8c.
  • the relationship between these average deformation coefficients C rr , C rl , and C re of these regions 8a, 8b, 8c can be defined according to the following mathematical formula: VS rr > VS rl > VS D
  • these rigid and deformable portions 6, 7 essentially make it possible to produce a fixation of the elastic clamping type of the support element 3 in the opening 5 formed in this holding member 1 which is defined by the internal peripheral wall 9a of this holding member 1.
  • these deformable portions 7 include the only contact zones 13 of the holding member 1 with the support element 3 which can be defined in all or part of the internal faces 14 of these deformable portions 7
  • the contact zone 13 of each deformable portion 7 is designed to cooperate with a peripheral wall 10 of the connecting part of the support element 3 in particular with the corresponding contact region defined in this peripheral wall 10 of the element. support 3.
  • the holding member 1 then comprises three contact zones 13 which contribute to achieving precise centering of the timepiece component 2, for example a hairspring, in the timepiece movement 110.
  • the elasticity or flexibility of the member 1 is defined relative to the contact zones 13 of this member 1, more precisely relative to the intensity of the deformation of the portions deformable 7 when a force is applied to these contact zones 13.
  • the rigid portions 6 and deformable 7 allow the holding member 1 to store a greater quantity of elastic energy for the same tightening in comparison with the holding members of the state of the art.
  • this significant storage of energy is linked in particular to the volume of material constituting this holding member 1 provided with through holes 4 and rigid portions 6 stressed in traction.
  • 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 element - watchmaking 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 bodies for maintaining the state of the art.
  • the arrangement of the rigid and deformable portions 6, 7 in the holding member 1 allows, during insertion with tightening, a deformation of each deformable portion 7 making it possible to accommodate the deformation of the entire member retaining element 1 with the geometry of the connecting part of the support element 3 on which it is assembled.
  • the through hole 4 of the holding member 1 is configured in order to contribute to controlling the movement of the deformable portions 7, in particular to reduce this movement, so that the deformable portions 7 combined with the rigid portions 6 can store a maximum of elastic energy when hunting of the member 1 on the support element 3 and thus increase the hold of this member 1 on this element 3.
  • the invention also relates to a method of producing the assembly 130 of the assembly 120 elastic holding member - timepiece component with the support element 3.
  • This method comprises a step 20 of inserting the support element 3 in 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 into the volume defined in this opening 5.
  • This step 20 comprises a sub-step 21 of elastic deformation of the holding member 1 in particular of a central zone of this holding member 1 comprising said opening 5 resulting from the application of a contact force F on the contact zones 13 of the deformable portions 7 by the contact portions of the peripheral wall 10 of the connecting part of the support element 3.
  • This elastic deformation of the central zone actually generates a deformation of the different regions 8a, 8b, 8c of each deformable portion 7 comprising the contact zone 13.
  • This deformation sub-step 21 of the method comprises a phase of displacement 22 of the deformable portions 7 under the action of the contact force F which is applied to them.
  • Such a movement of these deformable portions 7 is carried out in a radial direction R relative to the axis of revolution A common to the support element 3 and to the holding member 1.
  • the contact force F is preferably perpendicular or substantially perpendicular to said contact zone 13. During the progress of this phase 23, the rigid portions 6 do not deform.
  • This method then comprises a step 23 of fixing the holding member 1 on the support element 3.
  • a step of fixing 23, in particular by radial elastic tightening comprises a sub-step embodiment 24 of a radial elastic tightening of the holding member 1 on the support element 3.
  • the holding member 1 stores a significant quantity of elastic energy which contributes to giving it a significant holding torque allowing in particular optimal twisting by elastic tightening.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Plates (AREA)
  • Springs (AREA)
  • Micromachines (AREA)
EP22209691.9A 2022-11-25 2022-11-25 Elastisches halteelement zur befestigung einer uhrkomponente an einem trägerelement Pending EP4375761A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP22209691.9A EP4375761A1 (de) 2022-11-25 2022-11-25 Elastisches halteelement zur befestigung einer uhrkomponente an einem trägerelement
JP2023184043A JP2024076967A (ja) 2022-11-25 2023-10-26 時計部品を支持要素に取り付けるための弾性保持部材
US18/500,250 US20240176299A1 (en) 2022-11-25 2023-11-02 Elastic holding member for attaching a horological component to a support element
CN202311590337.8A CN118092114A (zh) 2022-11-25 2023-11-24 用于将钟表零件附接到支撑元件的弹性保持构件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22209691.9A EP4375761A1 (de) 2022-11-25 2022-11-25 Elastisches halteelement zur befestigung einer uhrkomponente an einem trägerelement

Publications (1)

Publication Number Publication Date
EP4375761A1 true EP4375761A1 (de) 2024-05-29

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ID=84363065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22209691.9A Pending EP4375761A1 (de) 2022-11-25 2022-11-25 Elastisches halteelement zur befestigung einer uhrkomponente an einem trägerelement

Country Status (4)

Country Link
US (1) US20240176299A1 (de)
EP (1) EP4375761A1 (de)
JP (1) JP2024076967A (de)
CN (1) CN118092114A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826635A1 (de) * 2006-02-24 2007-08-29 Patek Philippe S.A. Elastisches Befestigungsorgan für Uhren
EP3401740A1 (de) * 2017-05-12 2018-11-14 Patek Philippe SA Genève Uhrkomponente zum einpressen ohne gratbildung
CH715664A2 (fr) * 2018-12-17 2020-06-30 Nivarox Sa Organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support.
CH716511A2 (fr) * 2019-08-16 2021-02-26 Nivarox Sa Organe de maintien élastique d'un composant d'horlogerie sur un élément de support.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826635A1 (de) * 2006-02-24 2007-08-29 Patek Philippe S.A. Elastisches Befestigungsorgan für Uhren
EP3401740A1 (de) * 2017-05-12 2018-11-14 Patek Philippe SA Genève Uhrkomponente zum einpressen ohne gratbildung
CH715664A2 (fr) * 2018-12-17 2020-06-30 Nivarox Sa Organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support.
CH716511A2 (fr) * 2019-08-16 2021-02-26 Nivarox Sa Organe de maintien élastique d'un composant d'horlogerie sur un élément de support.

Also Published As

Publication number Publication date
JP2024076967A (ja) 2024-06-06
US20240176299A1 (en) 2024-05-30
CN118092114A (zh) 2024-05-28

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