EP3432081A1 - Uhreneinheit - Google Patents

Uhreneinheit Download PDF

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Publication number
EP3432081A1
EP3432081A1 EP18183697.4A EP18183697A EP3432081A1 EP 3432081 A1 EP3432081 A1 EP 3432081A1 EP 18183697 A EP18183697 A EP 18183697A EP 3432081 A1 EP3432081 A1 EP 3432081A1
Authority
EP
European Patent Office
Prior art keywords
axis
component
section
angular orientation
assembly
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.)
Granted
Application number
EP18183697.4A
Other languages
English (en)
French (fr)
Other versions
EP3432081B1 (de
Inventor
Marc GUILLAUME
Olivier Karlen
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.)
Richemont International SA
Original Assignee
Richemont International 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 Richemont International SA filed Critical Richemont International SA
Publication of EP3432081A1 publication Critical patent/EP3432081A1/de
Application granted granted Critical
Publication of EP3432081B1 publication Critical patent/EP3432081B1/de
Active 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance

Definitions

  • the present invention relates to the field of watchmaking. It relates more particularly to a watch assembly comprising a watch component fixed on an axis.
  • This method of attachment is ideal for metal or polymer components that are relatively resilient and can undergo plastic deformation without breaking.
  • brittle materials have become commonplace in watchmaking. These materials have little or no plastic field and are therefore extremely fragile.
  • WO2011 / 116486 describes a split ferrule comprising two resilient tongues which constrain and position the axis against a substantially rigid positioning surface when the axis is driven into the receiving zone defined by the tongues and the positioning surface.
  • the object of the invention is therefore to provide a watch component in which the aforementioned defects are at least partially overcome.
  • the invention relates to a watch assembly as defined by claim 1.
  • This set comprises a watch component such as a wheel, an anchor, a hairspring, a plate or the like, fixed on an axis which extends in an axial direction.
  • Said component comprises a receiving zone delimited by at least one positioning surface and at least two holding surfaces, the at least one of which is displaceable against a restoring force in order to clamp said section against said surface positioning.
  • These holding surfaces may be, for example, formed by fingers, tongues or the like.
  • the axis comprises a section of non-circular cross section (that is to say has a shape other than circular considered in a plane forming a non-zero angle, in particular perpendicular to said axial direction), this section and said receiving zone (in particular the positioning surface as well as the holding surfaces) being shaped so as to allow insertion of the axis substantially without driving in said axial direction when the axis and the component are mutually oriented in a first relative angular orientation, and to clamp said axis against said positioning surface when they have a second relative angular orientation, distinct from said first.
  • the component can thus be secured to the axis by a rotary clipping instead of a driving.
  • Conventional driving involves significant friction between the component and the axis during this operation, which is accompanied by a risk of wear of the component and / or the axis.
  • rotational clipping as defined above implies less friction and therefore less wear.
  • the section of the axis is non-circular, the angular alignment of the axis and the component can be substantially perfect and therefore requires no manual adjustment from a watchmaker.
  • said holding surfaces are each carried by a corresponding arm, the at least one of which is elastic.
  • said elastic arms partially surround said axis and are preferably folded inwards.
  • the arms can thus act as an antilock to cushion shocks in certain directions.
  • said positioning surface is carried by an element which is substantially rigid and thus provides a stable reference for the positioning of the component with respect to the axis.
  • said section comprises at least one flat part intended to cooperate with one of said surfaces, preferably with said positioning surface.
  • said section has a height parallel to said axial direction which is between 100% and 120%, preferably between 101% and 115%, of the thickness of said component considered in the same direction. If the section is machined in a cylindrical portion of the axis, the edges of the section may act as shoulders to position the component along the axis
  • the axis carries a locking element arranged to pass through said receiving zone when the axis and the component are oriented according to said first relative angular orientation and to block said component axially on said axis when the axis and the component are oriented in said second relative angular orientation. Axial blocking of the component on the axis is thus ensured, regardless of the shape and length of the section.
  • This locking element advantageously has at least one lug arranged to block said component axially on said axis when the axis and the component are oriented according to said second relative angular orientation.
  • a substantially polygonal shape whose vertices constitute said lugs is particularly suitable for this function.
  • said component is a spiral spring (whose receiving zone is defined by its ferrule or its peg carrier), a balance wheel, a wheel, an anchor, or a balance plate.
  • This set can be, of course, incorporated into a watch movement, which can be integrated in turn into a timepiece.
  • the component is clipped on the section of the axis, which implies a reduction in the friction exerted between these two elements in comparison with conventional driving and reduced wear, for the reasons mentioned above.
  • these two elements are indexed automatically without requiring manual adjustment.
  • FIGS. 1 and 2 represent a first embodiment of a watch assembly 1 according to the invention, seen in partial section.
  • This assembly comprises a watch component 3, which is shown here as a monoblock anchor assembled to an axis 5 of which only the section which cooperates with the anchor is shown.
  • This section is represented by a section 7 of non-circular cross section that extends along at least a portion of the axis.
  • Said non-circular shape is considered in a plane substantially perpendicular to the axis 5, and is, for example, at least partially polygonal.
  • the latter can be fixed or mobile in rotation, can be any tree or a similar structure such as a piton in the form of a tree.
  • the watch component 3 comprises a hollow reception zone 9 arranged to receive and tighten the axis 5.
  • This zone 9 is delimited on the one hand by a positioning surface 11 and on the other hand by at least two holding surfaces 13 which are subjected to an elastic restoring force.
  • the holding surfaces 13 are carried by resilient arms 15 extending from the body of the component 3, and the positioning surface 11 is substantially rigid (i.e., having a rigidity such as deformations). resilient in service position does not substantially disturb the function of the component 3). In other words, the positioning surface is substantially indestructible.
  • the receiving zone 9 and the shape of the section 7 are complementary and have a relationship such that, in a first relative angular orientation of these two elements, the axis 5 can be inserted into the zone 9 in an axial direction.
  • This relationship is illustrated on the figure 1 in full line and shows that there is enough clearance for the section 7 does not come into contact with the watch component 3 when inserted into said zone in a direction parallel to the axis 5.
  • a slight contact between the axis 5 and the two surfaces 11, 13 may be allowed.
  • the periphery of the section 7 abuts against the holding surfaces 13, which are displaced against the restoring force provided by the elastic arms 15.
  • the angular relationship between these components is illustrated on the figure 1 in broken lines, in which a corner of the section 7 is in contact with the positioning surface 11 (this contact being represented here by an overlap between the axis 3 and the holding surfaces 13).
  • the positioning surface 11 may comprise a notch 17 which allows a corner of the section 7 to enter during the rotation. The displacement of the holding surfaces 13 and also the stresses generated in the arms 15 can thus be limited.
  • the axis 5 adopts a stable position in a second relative angular orientation illustrated in FIG. figure 2 this angular orientation being distinct from the first angular orientation mentioned above.
  • this position the holding surfaces 13 have been raised by the shape of the section and the elastic arms 15 are thus constrained (solid lines, the initial position of the elastic arms 15 is illustrated in dotted lines), and clamp the section 7 against the positioning surface 11.
  • the section has a shape having a flat portion 7a which is positioned against the positioning surface 11 (which is also flat with the exception of the notch 17) in the service position, as well as two corners 7b rounded arranged to be in contact with the holding surfaces 13.
  • the flat 7a is connected to the rounded corners 7b by flat surfaces.
  • positioning surfaces 11, holding surfaces 13 and section 7 serve the purpose. Therefore, the illustrated embodiment should not be considered limiting.
  • the section has angular, curved, polygonal, oval, irregular shapes and any combination thereof.
  • the holding surfaces 13 may take the form of jumpers, fingers, tongues or any other suitable form.
  • the elastic restoring force for these surfaces it can be provided by elastic elements of any kind which are integral with said surfaces 13 or which are constituted by additional elements provided on the component 3.
  • the positioning surface may be curved, angular, irregular or any other suitable form. Indeed, any combination of shapes of the surfaces 11, 13 and section 7 which allow a stable tight angular position and an angular position which allows the axis 5 to enter the receiving zone 9, substantially without displacement of the surfaces of maintenance 13, is suitable for the implementation of the invention.
  • the axial retention of the component 3 on the axis 5 can be performed using the edges of the section 7 as axial stops in the case where the shape of the section 5 is machined in the body of a cylindrical axis.
  • the section 7 does not extend all along the axis 5 but occupies a length lying between 100% and 120%, preferably between 101 and 115% of the thickness of the component 3.
  • Figures 3 and 4 illustrate a variant in which axial stops of larger size are present.
  • the component 3 is a wheel.
  • the axis 5 has a conventional shoulder 19, located on one side of the component. On the other side is a locking element 21, which has a triangular shape in the illustrated variant. The shoulder 19 and the locking element 21 are thus connected to each other by said section.
  • the locking element is shaped to enter the receiving zone 9 when the axis 5 is in the aforementioned first angular orientation relative to the component 3.
  • the axis 5 can thus be inserted into the receiving zone 9 with play. and the component 3 can be adjusted against the shoulder 19.
  • the locking element 21 is also pivoted and the lugs 21a, constituted by the vertices of its triangular shape, abut against the component 3 and thus prevent its removal from the axis 5 when the latter is in said second orientation angularly with respect to the component 3.
  • the locking element 21 and the shoulder 19 thus block the component 3 axially on the axis 5.
  • other forms of locking element 21 are possible, for example shapes comprising at least one lug 21a or projecting projection arranged to form an axial abutment when the axis 5 and the component 3 are in their second angular orientation.
  • the locking element By pivoting the axis 5 again with respect to the component 3 so that they are again in their first angular orientation, the locking element can pass through the receiving zone 9 and can be removed.
  • the angle between the first angular orientation and the second angular orientation is 60 °, but any suitable angle may be used.
  • FIGS 5 to 8 illustrate another variant of a watch assembly 1 according to the invention.
  • the watch component 3 is a spiral spring of which only the shell and the root 3a of the spring are illustrated.
  • the root 3a is substantially rigid and carries the positioning surface 11.
  • the elastic arms 15 extend symmetrically from the root 3a and partially surround the receiving zone 9. The latter are folded inwards to give them increased elasticity and define the holding surfaces 13.
  • the elastic arms 15 and the root 3a thus form a ferrule allowing attach the hairspring to the balance shaft 15.
  • the axis 5 is inserted into the zone 9 by having the axis 5 and the spring 5 in a first relative angular orientation (as shown in solid lines on the figure 5 as well as on the figure 6 ). In this position, the locking element 21 can pass through the reception zone 9. Then, the axis 5 is pivoted relative to the spring 3, for example in the clockwise direction. When these two components are in the relative angular orientation shown in dashed lines on the figure 5 , the section 7 abuts against the holding surfaces 13 and a corner of the shape of the section enters the notch 17. This position is also illustrated in dotted lines on the figure 5 .
  • the elastic arms 15 are raised and the section adopts the second relative angular orientation, which is a stable position illustrated in solid lines on the figure 7 as well as on the figure 8 .
  • the holding surfaces 13 of the elastic arms 15 thus clamp the section against the positioning surface 11 by means of a force provided by the elastic arms.
  • the locking member 21 axially locks the spring on the axis 5 as described above.
  • the shape of the elastic arms 15 surrounding the axis 5 acts as an antilock for each direction in the plane of the component 3, except in the direction of the rigid root 3a. Indeed, in each other direction in the plane, the arms 15 can deform in response to shock and dampen. After this damping, the elastic arms 15 return the section 7 to its original position.
  • the section 7 always has at least one line of symmetry but it is also possible that its shape is irregular.
  • the elastic arms 15, which have been shown in symmetrical shapes, may also be different from each other and asymmetrical. Indeed, it is not important that the forces exerted by the holding surfaces are identical or are carried out symmetrically.
  • the principle of the invention is particularly advantageous when the component 2 is made of brittle material as mentioned in the preamble, it also applies to components 3 of metal or conventional polymer.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Clamps And Clips (AREA)
  • Electromechanical Clocks (AREA)
EP18183697.4A 2017-07-18 2018-07-16 Uhreneinheit Active EP3432081B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00941/17A CH714000A1 (fr) 2017-07-18 2017-07-18 Ensemble horloger comprenant un composant horloger fixé sur un axe.

Publications (2)

Publication Number Publication Date
EP3432081A1 true EP3432081A1 (de) 2019-01-23
EP3432081B1 EP3432081B1 (de) 2020-03-18

Family

ID=59930145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18183697.4A Active EP3432081B1 (de) 2017-07-18 2018-07-16 Uhreneinheit

Country Status (2)

Country Link
EP (1) EP3432081B1 (de)
CH (1) CH714000A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022529407A (ja) * 2019-04-08 2022-06-22 ニヴァロックス－ファー ソシエテ アノニム 計時器用コンポーネントを様々な支持要素に固定するための弾性保持メンバー

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4163733A1 (de) * 2021-10-05 2023-04-12 ETA SA Manufacture Horlogère Suisse Triebfeder einer uhr

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH306105A (fr) * 1953-02-17 1955-03-31 Omega Brandt & Freres Sa Louis Dispositif de fixation d'une roue d'un mouvement d'horlogerie sur l'extrémité d'un arbre.
FR2394839A1 (fr) * 1977-06-14 1979-01-12 Seiko Koki Kk Mecanisme a friction pour une montre
WO2011116486A1 (fr) * 2010-03-25 2011-09-29 Rolex S.A. Virole fendue à ouverture non circulaire
WO2013045706A2 (fr) * 2011-09-29 2013-04-04 Rolex S.A. Ensemble monolithique ressort spiral-virole
JP2014190816A (ja) * 2013-03-27 2014-10-06 Citizen Holdings Co Ltd 時計用ぜんまい装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH306105A (fr) * 1953-02-17 1955-03-31 Omega Brandt & Freres Sa Louis Dispositif de fixation d'une roue d'un mouvement d'horlogerie sur l'extrémité d'un arbre.
FR2394839A1 (fr) * 1977-06-14 1979-01-12 Seiko Koki Kk Mecanisme a friction pour une montre
WO2011116486A1 (fr) * 2010-03-25 2011-09-29 Rolex S.A. Virole fendue à ouverture non circulaire
WO2013045706A2 (fr) * 2011-09-29 2013-04-04 Rolex S.A. Ensemble monolithique ressort spiral-virole
JP2014190816A (ja) * 2013-03-27 2014-10-06 Citizen Holdings Co Ltd 時計用ぜんまい装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022529407A (ja) * 2019-04-08 2022-06-22 ニヴァロックス－ファー ソシエテ アノニム 計時器用コンポーネントを様々な支持要素に固定するための弾性保持メンバー

Also Published As

Publication number Publication date
CH714000A1 (fr) 2019-01-31
EP3432081B1 (de) 2020-03-18

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