EP3543800B1 - Systeme de lunette tournante annulaire comprenant un anneau ressort - Google Patents

Systeme de lunette tournante annulaire comprenant un anneau ressort Download PDF

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Publication number
EP3543800B1
EP3543800B1 EP18162851.2A EP18162851A EP3543800B1 EP 3543800 B1 EP3543800 B1 EP 3543800B1 EP 18162851 A EP18162851 A EP 18162851A EP 3543800 B1 EP3543800 B1 EP 3543800B1
Authority
EP
European Patent Office
Prior art keywords
rotating bezel
ring
annular
spring ring
toothed ring
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.)
Active
Application number
EP18162851.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3543800A1 (fr
Inventor
Olivier Silvant
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.)
Omega SA
Original Assignee
Omega 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 Omega SA filed Critical Omega SA
Priority to EP18162851.2A priority Critical patent/EP3543800B1/fr
Priority to US16/290,997 priority patent/US11385597B2/en
Priority to JP2019044503A priority patent/JP6793771B2/ja
Priority to KR1020190029947A priority patent/KR102213581B1/ko
Priority to CN201910208584.4A priority patent/CN110308637B/zh
Publication of EP3543800A1 publication Critical patent/EP3543800A1/fr
Application granted granted Critical
Publication of EP3543800B1 publication Critical patent/EP3543800B1/fr
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
    • G04B19/00—Indicating the time by visual means
    • G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
    • G04B19/283—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel
    • G04B19/286—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel with locking means to prevent undesired rotations in both directions
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/28—Adjustable guide marks or pointers for indicating determined points of time
    • G04B19/283—Adjustable guide marks or pointers for indicating determined points of time on rotatable rings, i.e. bezel

Definitions

  • the invention relates to an annular rotating bezel system.
  • the invention also relates to a watch case comprising a middle part and the annular rotating bezel system rotatably mounted on the middle part.
  • the invention further relates to a watch comprising the watch case.
  • the watch is for example a diving watch, without this being limiting in the context of the present invention.
  • annular rotating bezel systems include a rotating bezel, an annular retaining ring, a toothed ring, and a spring ring.
  • a rotating bezel system is for example described in the patent document EP 2 672 333 A1 .
  • the spring ring extends in a plane in which it is capable of deforming elastically along a radius, and elastically cooperates with the toothed ring.
  • elastic arms intended to cooperate with the toothed ring are provided in an inner periphery of the spring ring, by cutting the latter. The toothed ring and the spring ring are held axially by the rotating bezel and the annular retaining ring.
  • the spring ring is angularly integral with the rotating bezel, and the toothed ring is angularly integral with the middle part.
  • the spring ring has limited flexibility in the plane that it defines. This makes it necessary to provide a sufficient width in the system in order to ensure a sufficiently clear space radially for the deformation of the spring ring, and therefore entails a significant bulk.
  • the manufacture of a such a spring ring is relatively complex, due to the cutting operation for producing the elastic arms.
  • the invention relates to an annular rotating bezel system which includes the features set out in independent claim 1.
  • a first advantage of the present invention is to make it possible to increase the flexibility of the spring ring in its plane.
  • the spring ring works in bending in its plane, allowing the teeth that it bears to mesh and disengage from the toothed ring according to the rotation of the ring. the glasses. This makes it possible to reduce the width necessary for the operation of the spring ring in the system, and therefore to obtain a saving in overall width of the assembly.
  • Such an arrangement is simple to manufacture, is compact in diameter, and makes it possible to obtain very well controlled dimensions during manufacture for the spring ring and the toothed ring.
  • Such a configuration for the spring ring also does not require tabs or strips attached to the ring, since the spring ring is formed from a single piece of material.
  • this arrangement makes it possible to choose a material for the toothed ring independently of the material used for the rotating bezel. This makes it possible, for example, to produce glasses in precious material without risk of premature wear since the toothed ring is not integrated into the bezel but is just attached to said bezel.
  • the rotating bezel comprises at least one lug extending over an internal lateral face of the bezel, and the spring ring has, on an outer periphery, at least one notch in which the lug of the bezel is engaged.
  • the toothed ring has, on an inner periphery, at least one lug intended to be received in a notch provided in a cylindrical outer surface of the middle part.
  • the teeth of the toothed ring and the or each tooth of the spring ring have an asymmetric shape in the plane defined by the spring ring.
  • the spring ring can rotate relative to the toothed ring in only one predefined direction: clockwise or anti-clockwise depending on the shape chosen for the teeth.
  • This first embodiment of the invention therefore corresponds to a unidirectional rotating bezel.
  • the teeth of the toothed ring and the or each tooth of the spring ring have a symmetrical shape in the plane defined by the spring ring.
  • the spring ring can rotate relative to the toothed ring in one or the other of two directions: clockwise or anti-clockwise.
  • This second embodiment of the invention therefore corresponds to a bidirectional rotating bezel.
  • the annular rotating bezel system is formed of an independent module, said module being configured to be clipped onto the middle part.
  • This makes it possible to obtain a simple and practical assembly of the rotating bezel system on the caseband, also allowing easy disassembly. This makes it possible to further simplify the process for manufacturing the watch case.
  • the clip-on mounting system used forms a free hooking system.
  • the figure 1 shows a watch 1 provided with a watch case 2.
  • the watch case 2 typically comprises a middle part 4.
  • the watch case 2 also comprises an annular rotating bezel system 6 as well as a watch movement which extends in a plan, the watch movement not being shown in the figures for reasons of clarity.
  • the annular rotating bezel system 6 is rotatably mounted on the middle part 4.
  • the annular rotating bezel system 6 is formed from an independent module.
  • the annular rotating bezel system 6 is for example clipped onto the middle part 4, as will be detailed below.
  • the caseband 4 is annular in shape.
  • the middle part 4 comprises a cylindrical outer surface 8.
  • the cylindrical outer surface 8 is provided with a peripheral shoulder defined by a side wall 12a and a base 12b.
  • This peripheral shoulder serves as a housing for the rotating bezel system 6.
  • the side wall 12a comprises an annular protuberance or bead 13 extending over the entire perimeter of the side wall 12a and allowing the rotating bezel system 6 to be hooked on. caseband 4, by clipping.
  • the annular rotating bezel system 6 rests on the base 12b.
  • the rotating bezel system 6 is thus mounted on the middle part 4, from above the latter, allowing the system 6 to be blocked in an axial direction perpendicular to the plane of the watch movement, while allowing rotation of the bezel around the middle part. 4.
  • the configuration of the watch case is substantially circular.
  • the middle part can be made of metal, typically steel, titanium, gold. , in platinum or in ceramic typically based on alumina, zirconia or silicon nitride.
  • the annular rotating bezel system 6 comprises a rotating bezel 14, an annular retaining ring 16, a toothed ring 18 and a spring ring 20.
  • the system 6 further comprises a decorative ring 22 forcibly engaged on the bezel. rotating 14.
  • the decorative ring 22 carries for example graduations, typically diving graduations in the case of a diving watch 1.
  • the decorative ring 22 is for example made of ceramic.
  • the rotating bezel 14 is annular in shape and comprises an upper face 23a visible to the user and a lower face 23b. As shown on figures 1 and 3 , the rotating bezel 14 is for example provided on an inner periphery with an annular rim 24. The annular rim 24 cooperates by clipping with the protuberance 13 of the middle part 4, and forms with the latter a free hooking system.
  • the rotating bezel 14 is for example made of metal but could be made of any other material, for example ceramic.
  • the annular ring 16 maintains the toothed ring 18 and the spring ring 20 in the bezel 14, in an axial direction perpendicular to the plane of the watch movement. This makes it possible to facilitate the mounting of the rotating bezel 14 on the middle part 4.
  • the annular ring 16 is driven into the rotating bezel 14, securing it to the latter.
  • the annular ring 16 is secured to the middle part 4.
  • the annular ring 16 rests on the base 12b of the middle part 4, and thus surrounds the cylindrical outer surface 8 of the middle part 4.
  • the annular ring 16 is configured to cooperate with the outer surface. cylindrical 8 to allow rotation of the rotating bezel 14 on the middle part 4.
  • the annular retaining ring 16 is for example a flat ring.
  • the annular ring 16 comprises means 26 for guiding the rotation of the rotating bezel 14 around the middle part 4, and means 28 configured to slow down the rotation of the rotating bezel 14 around the middle part 4 and to damp the sound.
  • the annular ring 16 is for example formed from a single piece of material consisting of a plastic material, in particular, PTFE, ethylene-tetrafluoroethylene (Tefzel®), and polyoxymethylene (Delrin®) where appropriate coated with ' a layer aimed at improving the coefficient of friction.
  • the annular ring 16 is for example of generally rectangular section.
  • the annular ring 16 comprises on an inner periphery an alternation between tongues 30a of a first group of tongues, and tongues 30b of a second group of tongues.
  • the tongues 30a of the first group and the tongues 30b of the second group are in contact with the cylindrical outer surface 8 of the middle part 4.
  • Such tongues 30a, 30b limit the passage of dirt inside the rotating bezel system 6.
  • the tongues 30a of the first group and the tongues 30b of the second group are arranged on an outer periphery of the annular ring 16 and are in contact with a inner surface of rotating bezel 14.
  • the first and second groups of tabs each comprise six tabs 30a, 30b, distributed over the inner periphery of the ring 16 over 360 °.
  • the tongues of the same group of tongues are thus spaced two by two by 60 °, the tongues 30a, 30b of the first and second groups of tongues being alternated.
  • the tongues 30a of the first group and the tongues 30b of the second group have differentiated dimensions, in the radial direction.
  • the tongues 30a of the first group of tongues have dimensions in the radial direction smaller than those of the tongues 30b of the second group of tongues, and form the means for guiding in rotation 26.
  • the tongues 30b of the second group of tongues form the sound braking and damping means 28. More precisely, the tongues 30b of the second group of tongues consist of segments that are more flexible than the tongues 30a of the first group. Such segments are able to flex in an axial direction perpendicular to the plane of the watch movement.
  • a particular embodiment shown in figure 1 consists in that the tongues 30a of the first group and the tongues 30b of the second group have differentiated thicknesses, the thickness being measured in the axial direction perpendicular to the plane of the watch movement.
  • the tongues 30b of the second group have a thickness less than that of the tongues 30a of the first group, thus giving them greater flexibility. Thanks to the axial flexibility of the tongues 30b of the second group, they can brake the rotation of the rotating bezel 14 around the middle part 4 by rubbing against the cylindrical outer surface 8, as well as damping the sound produced.
  • the braking of the rotation of the bezel 14 by the means 28 has the advantage of smoothing the various clearances inside the system so that the user of the bezel does not feel them, as well as of controlling the torque of rotation. of the bezel making it softer.
  • the braking and sound damping means 28 make it possible to reduce the noise produced by the rotation of the bezel and therefore to improve the user experience.
  • the tongues 30a, 30b of the first and second groups are separated from each other by notches 32. This in particular makes it possible to improve the flexibility of the tongues 30b of the second group of tongues.
  • the tongues 30a, 30b of the first and second groups of tongues extend angularly over a substantially equal angular sector.
  • the annular retaining ring may comprise a simple annular ring of rectangular section over its entire periphery driven into the bezel 14.
  • the toothed ring 18 comprises several teeth, for example 120 teeth, also distributed over its outer circumference over 360 °.
  • the toothed ring 18 also has, on its inner periphery, at least one lug 34 received in a notch 36 provided in the cylindrical outer surface 8 of the middle part 4.
  • the toothed ring 18 comprises three lugs 34 distributed over 360 ° and spaced two by two by 120 °.
  • the cylindrical outer surface 8 of the middle part 4 comprises three corresponding notches 36. This lugs 34 / notches 36 system allows easy angular attachment of the toothed ring 18 to the middle part 4, while facilitating the positioning of the toothed ring 18 on the middle part 4.
  • This system also makes it possible to guide the rotating bezel system. 6 for its mounting on the caseband 4.
  • the pins 34 are engaged in the notches 36, allowing the elements to be snapped inside the system 6 and the system 6 to be clipped on. the caseband 4.
  • the toothed ring 18 is formed from a single piece of material.
  • the toothed ring 18 is for example made of a metal alloy, in particular a cobalt-based alloy (40% Co, 20% Cr, 16% Ni and. 7% Mo) commercially known as phynox or of steel typically a stainless steel for example 316L.
  • the toothed ring 18 may be made of a thermoplastic material, in particular a thermostable semi-crystalline thermoplastic material such as for example polyarylamide (lxef®), polyetheretherketone (PEEK) or else in a ceramic material such as zirconia or alumina.
  • the toothed ring 18 is arranged to fit into the spring ring 20, that is to say that the toothed ring 18 is dimensioned to be able to be placed in the spring ring 20.
  • the toothed ring 18 and the spring ring 20 are concentric and coplanar, and are held between the lower face 23b of the bezel 14 and an upper face of the retaining ring 16.
  • the spring ring 20 elastically cooperates with the toothed ring 18. More precisely, the spring ring 20 comprises at least one thinned portion 38 having at least one tooth 40 elastically and radially in engagement with the toothed ring 18.
  • the spring ring 20 comprises three thinned portions 38 distributed over 360 °, each thinned portion 38 having a tooth 40 arranged in a middle part of the thinned portion 38. The three thinned portions 38 are spaced two by two by 120 °.
  • the spring ring 20 extends in a plane in which it is capable of deforming elastically along a radius.
  • the thinned portions 38 are arranged to increase the flexibility of the spring ring 20 in its plane.
  • each tooth 40 is in contact with the toothed ring. 'toothed ring so that there is a rest position in which each tooth 40 is in a hollow between two teeth of the toothed ring 18.
  • the spring ring 20 deforms elastically in its plane, allowing the teeth 40 to disengage from the hollows of the toothed ring 18 and to re-engage in a adjacent tooth of the toothed ring 18.
  • the bezel 14 then effectively rotates through a corresponding angular sector, to a new position.
  • the thinned portions 38 are thinned radially.
  • the spring ring 20 has on its outer periphery at least one notch 42 in which a lug 44 of the bezel 14 is engaged to link these two elements in rotation.
  • the spring ring 20 comprises three notches 42 distributed over 360 ° and spaced two by two by 120 °
  • the rotating bezel 14 comprises on an internal lateral face three corresponding lugs 44.
  • the notches 42 are formed in portions 46 of the spring ring 20 which are thicker than the thinned portions 38, in the middle parts of these portions 46.
  • the teeth 40 and the notches 42 form an alternation on the spring ring 20. , regularly distributed over 360 °.
  • This system of lugs 44 / notches 42 makes it possible to easily link the spring ring 20 in rotation to the rotating bezel 14, while facilitating the positioning of the spring ring 20 in the bezel 14.
  • the spring ring 20 is formed from a single piece of material.
  • the spring ring 20 is for example made of a metal alloy having good spring properties, that is to say which easily deforms elastically while being able to deform significantly without undergoing plastic deformation, in particular phynox. ® or amorphous metal alloys.
  • the spring ring 20 can also, as a variant, be made of a synthetic material.
  • the teeth of the toothed ring 18 and the teeth 40 of the spring ring 20 have an asymmetric shape in the plane defined by the spring ring 20.
  • the asymmetric shape is for example a so-called "shape”.
  • wolf's tooth that is to say that the teeth have substantially the shape of a right-angled triangle.
  • the hypotenuse of the triangle formed by each tooth 40 of the spring ring extends along the hypotenuse of the triangle formed by one of the teeth of the toothed ring 18.
  • the teeth 40 are regularly distributed over 360 °.
  • the teeth 40 are spaced two by two by 120 °.
  • the spring ring 20 can rotate relative to the toothed ring 18 in a single predefined direction: clockwise or anti-clockwise depending on the shape chosen for the teeth.
  • This first embodiment of the invention therefore corresponds to a unidirectional rotating bezel 14.
  • the teeth of the toothed ring 18 and the teeth 40 of the spring ring 20 have a symmetrical shape in the plane defined by the spring ring 20.
  • the symmetrical shape is for example a triangle shape. isosceles or equilateral triangle.
  • the spring ring 20 can rotate relative to the toothed ring 18 in one or the other of the two directions: clockwise or anti-clockwise.
  • This second embodiment of the invention therefore corresponds to a bidirectional rotating bezel 14.
  • the spring ring 20 comprises three thinned portions 38 regularly distributed over 360 °.
  • Each thinned portion 38 carries a tooth 40.
  • annular rotating bezel system according to the invention has been made with reference to a toothed ring angularly integral with the middle part, and to a spring ring angularly integral with the rotating bezel.
  • the reverse configuration is possible without departing from the scope of the present invention, that is to say that the toothed ring may be angularly secured to the rotating bezel, and the ring is angularly springing. integral with the caseband.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Springs (AREA)
  • Gears, Cams (AREA)
EP18162851.2A 2018-03-20 2018-03-20 Systeme de lunette tournante annulaire comprenant un anneau ressort Active EP3543800B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18162851.2A EP3543800B1 (fr) 2018-03-20 2018-03-20 Systeme de lunette tournante annulaire comprenant un anneau ressort
US16/290,997 US11385597B2 (en) 2018-03-20 2019-03-04 Annular rotating bezel system comprising a spring ring
JP2019044503A JP6793771B2 (ja) 2018-03-20 2019-03-12 ばねリングを備える環状回転ベゼルシステム
KR1020190029947A KR102213581B1 (ko) 2018-03-20 2019-03-15 스프링 링을 포함하는 환형 회전 베젤 시스템
CN201910208584.4A CN110308637B (zh) 2018-03-20 2019-03-19 包括弹簧环的环形旋转表圈系统

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18162851.2A EP3543800B1 (fr) 2018-03-20 2018-03-20 Systeme de lunette tournante annulaire comprenant un anneau ressort

Publications (2)

Publication Number Publication Date
EP3543800A1 EP3543800A1 (fr) 2019-09-25
EP3543800B1 true EP3543800B1 (fr) 2021-11-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18162851.2A Active EP3543800B1 (fr) 2018-03-20 2018-03-20 Systeme de lunette tournante annulaire comprenant un anneau ressort

Country Status (5)

Country Link
US (1) US11385597B2 (ko)
EP (1) EP3543800B1 (ko)
JP (1) JP6793771B2 (ko)
KR (1) KR102213581B1 (ko)
CN (1) CN110308637B (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3800514B1 (fr) * 2019-10-04 2024-01-17 Comadur S.A. Anneau ressort d'encliquetage d'une lunette tournante
EP3819717A1 (fr) * 2019-11-05 2021-05-12 Rolex Sa Lunette pour boîte de pièce d'horlogerie
EP3832398A1 (fr) 2019-12-04 2021-06-09 Comadur S.A. Systeme de lunette tournante comprenant une lunette tournante en ceramique
JP2022099298A (ja) 2020-12-22 2022-07-04 ロレックス・ソシエテ・アノニム ノッチシステム用ばね及び時計ノッチシステム
JP2022099297A (ja) 2020-12-22 2022-07-04 ロレックス・ソシエテ・アノニム ノッチシステム用ばね及び時計ノッチシステム

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH662030GA3 (fr) 1985-09-24 1987-09-15 Remy Montavon Sa Montre à lunette tournante
JPH0363887U (ko) 1989-10-27 1991-06-21
JPH06186355A (ja) * 1992-12-18 1994-07-08 Casio Comput Co Ltd 回転ベゼルの構造
DE102008029429A1 (de) * 2007-10-18 2009-04-23 Konrad Damasko Verfahren zum Herstellen von mechanischen Funktionselementen für Uhrwerke sowie nach diesem Verfahren hergestelltes Funktionselement
CH703400B1 (fr) * 2010-07-05 2015-01-15 Cartier Création Studio Sa Boîte de montre munie d'une lunette tournante.
WO2013102598A2 (fr) 2011-12-27 2013-07-11 Rolex S.A. Ressort pour mouvement horloger
EP2672333A1 (fr) 2012-06-06 2013-12-11 Omega SA Système de lunette tournante
EP2672332B1 (fr) * 2012-06-06 2019-11-13 Omega SA Système de lunette tournante amelioré
EP2677371A1 (fr) 2012-06-21 2013-12-25 ETA SA Manufacture Horlogère Suisse Systeme antichoc non demontable pour pièce d'horlogerie
CH708936B1 (fr) * 2013-12-11 2019-07-31 Swatch Group Res & Dev Ltd Palier antichoc bi-matière pour mobile de pièce d'horlogerie.
JP6741397B2 (ja) 2014-02-10 2020-08-19 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ 携帯時計側及び時計
CN105988358B (zh) * 2015-02-26 2019-10-01 精工爱普生株式会社 带旋转表圈的钟表
CH712740B1 (fr) 2016-07-26 2020-08-31 Omega Sa Sous-ensemble d'habillage pour pièce d'horlogerie, notamment une montre, ou pour bijou.
EP3287855B1 (fr) 2016-08-26 2019-05-01 Meco S.A. Couronne de reglage pour piece d'horlogerie
CH712875B1 (fr) * 2016-09-05 2022-10-31 Csem Centre Suisse Delectronique Et De Microtechique Sa Rech Et Developpement Module d'affichage comportant des éléments mobiles autour de liaisons déformables, système d'affichage associé et pièce d'horlogerie comportant un tel système d'affichage.

Also Published As

Publication number Publication date
CN110308637B (zh) 2022-04-08
US20190294114A1 (en) 2019-09-26
JP2019164129A (ja) 2019-09-26
CN110308637A (zh) 2019-10-08
US11385597B2 (en) 2022-07-12
JP6793771B2 (ja) 2020-12-02
KR20190110443A (ko) 2019-09-30
EP3543800A1 (fr) 2019-09-25
KR102213581B1 (ko) 2021-02-08

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