EP3582028A1 - Vorrichtung zur rastung einer uhr - Google Patents

Vorrichtung zur rastung einer uhr Download PDF

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Publication number
EP3582028A1
EP3582028A1 EP18177590.9A EP18177590A EP3582028A1 EP 3582028 A1 EP3582028 A1 EP 3582028A1 EP 18177590 A EP18177590 A EP 18177590A EP 3582028 A1 EP3582028 A1 EP 3582028A1
Authority
EP
European Patent Office
Prior art keywords
spring
elastic
arm
securing
notching
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
EP18177590.9A
Other languages
English (en)
French (fr)
Inventor
Philippe DI PIAZZA
Jean-Baptiste Robin
Alain RUCK
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.)
Rolex SA
Original Assignee
Rolex 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 Rolex SA filed Critical Rolex SA
Priority to EP18177590.9A priority Critical patent/EP3582028A1/de
Priority to US16/424,858 priority patent/US11609538B2/en
Priority to JP2019103481A priority patent/JP2020020780A/ja
Priority to CN201910511928.9A priority patent/CN110597042B/zh
Publication of EP3582028A1 publication Critical patent/EP3582028A1/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
    • 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
    • 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

Definitions

  • the invention relates to a timepiece spring, in particular a notching spring. It also relates to a timepiece comprising such a spring. It also relates to a timepiece assembly comprising such a spring or such a member. It also relates to a timepiece, in particular a wristwatch, comprising such a spring or such a member or such an assembly. Finally, it relates to a method of mounting such an assembly or such a timepiece.
  • the timepieces are for example provided with notching springs to allow the implementation of a notched rotating bezel.
  • Requirement EP1431845 discloses, for example, such a construction in which a closed loop spring is shaped to exert radial forces opposite an annular cam, so as to generate the notching of a rotating bezel.
  • this spring is provided with cylindrical guides intended to be engaged in grooves formed on the bezel, in order, in particular, to secure in rotation said bezel and said spring during assembly of the bezel on the middle from the watch case.
  • Such an assembly operation can prove to be tricky insofar as it is necessary to position the bezel grooves opposite the cylindrical guides of the spring, even though the grooves formed on the bezel are masked by a bezel disc or crimping stones. Furthermore, such a spring provided with cylindrical guides can prove to be particularly bulky, in particular for the implementation of a crimped bezel.
  • three bulges separated by elastic notching arms are provided to cooperate with an annular cam.
  • said spring and said bezel are rotatably attached in both directions, by rigid means which take the form of cylindrical guides or pins driven out at each of the bulges of the spring.
  • the spring is arranged on the middle part, the spring is locked in rotation opposite the middle part by means of re-entrant projections formed at each of the bulges of the spring.
  • the catch spring is in the form of a ring provided with catch tongues intended to cooperate with a toothing.
  • the catch spring is here attached to the bezel by means of fixing elements such as pins. To do this, cutouts are formed in the ring so as to receive the fastening elements.
  • Such a notching device or such a spring is devoid of a fastening device provided with elastic means, shaped to allow the fastening, at least in two directions, of said spring with the bezel or the middle part.
  • Requirement EP3276187 discloses a catch device between a first covering component and a second covering component between which a catch spring is interposed.
  • This spring takes the form of a rod provided with a bulge formed between two elastic notching tongues.
  • Each of the elastic notching arms is provided with a foot so as to secure the rod to one or the other of the covering components in at least two directions.
  • the object of the invention is to provide a notching device making it possible to remedy the drawbacks mentioned above and to improve the notching devices known from the prior art.
  • the invention provides a compact, reliable and simple timepiece spring making it possible to simplify the mounting of a notching device.
  • a spring according to the invention is defined by claim 1.
  • a timepiece according to the invention is defined by claim 10.
  • a timepiece assembly according to the invention is defined by claim 11.
  • a timepiece according to the invention is defined by claim 13.
  • a mounting method according to the invention is defined by claim 14.
  • the timepiece is for example a watch or a wristwatch.
  • the timepiece may include a mechanical movement, in particular an automatic movement, or an electronic movement.
  • the timepiece may also include a timepiece assembly, in particular a watch case 7 intended to contain the movement.
  • the watchmaking assembly advantageously comprises a first watchmaking member 2 and a second watchmaking member 3.
  • the first member is for example a mobile or rotating bezel.
  • the second member is for example a middle part.
  • the first member is therefore advantageously movable relative to the second member.
  • a notching is advantageously carried out between the first and second members.
  • the second organ includes, for example, a second conformation 40 of indexing or notching. This second conformation 40 of indexing or notching is provided to cooperate with at least one first conformation 21 of indexing or notching provided on the first member 2.
  • the first member 2 in particular the bezel, comprises a spring 1.
  • the first member may also include a component 2b, in particular a ring 2b.
  • the first member comprises the spring 1 and one or more other elements or components. These one or more other elements or components are called “rest of the first organ” below.
  • the spring is advantageously intended for carrying out the indexing or notching between the first member and the second member.
  • the at least one first conformation 21 for indexing or notching can be produced by the spring, that is to say by conformations on the spring.
  • the at least one first conformation comprises three bulges 21, 31, 41 separated by elastic notching arms 21a, 31a, 41a. These bulges are provided to cooperate and exert radial forces against a middle member 4 having recesses 40 intended to cooperate with the bulges.
  • This middle part 4 can therefore be seen or considered as a cam, in particular an annular cam.
  • the timepiece spring 1 comprises at least a first securing element 10a intended to cooperate with at least one second securing element 20b provided on the component 2b of the first member so as to secure the spring and the component.
  • the at least first securing element comprises at least one elastic securing arm 10a extending in a first direction D1.
  • the first joining element is intended to receive a force F driving the first member relative to the second member in the first direction or substantially in the first direction.
  • the first fastening element makes it possible to transmit the drive force F to the rest of the spring, in particular to any notching or indexing conformations provided on the spring.
  • the at least one elastic securing arm 10a allows the first securing element to cooperate with less play or without play with the second securing element 20b provided on the component 2b of the first member so as to join with less play or without clearance spring 1 and component 2b.
  • the spring has a generally annular shape along a plane P.
  • the spring 1 has a closed loop geometry along a plane P.
  • the generally annular shape of the spring can be tangent or substantially tangent to the first direction D1.
  • the first direction D1 is preferably orthoradial or substantially orthoradial relative to an axis of rotation A1 of the spring or to an axis A1 passing through the center of gravity G of the spring 1 and perpendicular or substantially perpendicular to the plane P of the spring 1.
  • the axis A1 is also preferably the axis of rotation of the first or second member as shown in the figures 6 and 7 .
  • the spring 1 comprises three first fastening elements.
  • the first three securing elements are regularly distributed along the periphery of the spring 1.
  • the spring 1 may include another number of first securing elements, in particular two or four or five first securing elements.
  • the different first fastening elements can be regularly distributed along the periphery of the spring 1.
  • the various first securing elements have identical structures.
  • the various first securing elements are arranged at the level of the first conformations 21, 31, 41 for indexing or notching.
  • the first securing elements and the first indexing or notching conformations can be arranged in the same places or substantially in the same places on the spring, the places being defined angularly around the axis A1.
  • the first securing elements and / or the first conformations 21, 31, 41 can be regularly distributed over the spring relative to the axis A1.
  • the ratio of the number of first securing elements to the number of first indexing or notching conformations may be an integer or the reverse of an integer.
  • the ratio of the number of first securing elements to the number of first indexing conformations is equal to one.
  • Each elastic securing arm comprises a free or distal end and an end linked to the rest of the spring or proximal.
  • the free or distal end (s) each form a face 101a perpendicular or substantially perpendicular to the first direction D1.
  • a face may or may not be flat.
  • the free or distal end (s) each have a flared shape.
  • each elastic securing arm has an elongated shape.
  • the longitudinal dimension L1 of each elastic securing arm measured in the plane P of the spring can thus be assimilated substantially to an arc length relative to the axis A1 of the spring.
  • This arc length is proportional to an angle ⁇ 1 represented on the figure 2 .
  • This angle can be expressed in radians.
  • L2 as being the arc length of each elastic notching arm relative to the axis A1 of the spring
  • the dimension L1 is preferably between L2 / 20 and L2 / 3.
  • the longitudinal dimension L2 of each notching arm measured in the plane P of the spring can also be assimilated substantially to an arc length relative to the axis A1 of the spring.
  • This arc length is proportional to an angle ⁇ 2 represented on the figure 2 .
  • the dimension ⁇ 1 is preferably between ⁇ 2 / 20 and ⁇ 2 / 3.
  • the longitudinal dimension L2 of an elastic notching arm extends from a point characteristic of a first indexing or notching conformation 21, for example an axis of symmetry of the conformation, to another point characteristic of a another neighboring first indexing or notching conformation 41.
  • the longitudinal dimension L1 of an arm of a first securing element 12a extends from a proximal end 100b of the arm to a distal end 100a of the arm.
  • the proximal end is for example defined as the place of a surface extending radially along the axis A1 or the place where the spring has surfaces of the spring comprising, in the plane P, tangents forming between them an angle ⁇ less than 90 ° or even less than 60 ° or even less than 30 °, as illustrated on the figure 3 .
  • transverse dimension d1 of each elastic securing arm is preferably between d2 / 5 and d2 / 2, d2 being the transverse dimension of each elastic notching arm.
  • transverse dimension we mean the dimension of the section of the spring measured in the plane P of the spring in a given radial direction relative to the axis A1 of the spring.
  • the elastic securing arm has a longitudinal dimension greater than or equal to 15 times, or even greater than or equal to 20 times, or even greater than or equal to 25 times the transverse dimension d1 of the elastic securing arm.
  • the thickness e of the spring is constant.
  • the ratio d1 / e is less than or equal to 1, or even less than or equal to 0.5.
  • thickness we mean the dimension of the spring in a direction parallel to the axis A1 of the spring.
  • the elastic securing arm (s) may, for example, have rectangular or substantially rectangular or square or substantially square cross sections. These sections can be constant or substantially constant along the longitudinal dimension L1 of the elastic securing arms. Alternatively, the sections can be scalable, that is to say that they can vary along the longitudinal dimension L1 of the elastic securing arms.
  • the elastic securing arm (s) 10a; 10a ', 11a; 11a', 12a; 12a ' are ideally formed in the continuity of elastic notching arms 21a, 31a, 41a, the elastic notching arms being located on either side of the first conformations 21, 31, 41 for indexing or notching.
  • the elastic securing arm (s) may have generally arcuate or substantially arcuate shapes, for example with radii of curvature whose dimension is of the order of magnitude of the radius of the annular shape of the spring.
  • the radius of curvature of the elastic securing arm is between 0.2 times and 1 time the radius of the annular shape of the spring.
  • the elastic securing arm or arms may have generally rectilinear or substantially rectilinear shapes.
  • the at least one first securing element cooperates with the at least one second securing element to secure the spring to the rest of the member, in particular to the rest of the bezel or to the rest of the middle or to the rest the back of the middle.
  • the at least one second fastening element comprises at least one projection 20b, 21b and 22b, in particular at least one radial projection, for example three radial projections.
  • the watchmaking assembly comprises as many first joining elements as second joining elements.
  • Each projection preferably comprises a face 200b, 201b intended to cooperate by abutment or by obstacle with a face 101a, 101a 'of an elastic securing arm. All or part of the faces 200b, 201b are also preferably perpendicular to the first direction when they cooperate with the elastic securing arms.
  • each first securing element comprises two elastic securing arms 10a, 10a ', in particular two elastic securing arms whose free ends face each other or two arms symmetrical relative to a plane P1 comprising the axis of rotation A1 of the spring or the axis A1 passing through the center of gravity G of the spring 1 and orthogonal or substantially orthogonal to the plane P of the spring 1.
  • each pair of symmetrical arms provides, between the free ends of the arms, a gap or recess 10b, 11b , 12b in which a second fastening element is intended to be housed.
  • Each elastic securing arm may have a retraction ramp 102a.
  • a retraction ramp allows a second securing element to deform and retract an elastic securing arm during relative movement of the first and second members during a mounting or assembly process of the first and second organs described below. This deformation and this retraction take place until the second securing element (s) take place in the interstices or recesses. In this situation, the deformed elastic securing arm (s) resume their shape and the second securing element (s) are trapped between the elastic securing arms.
  • the spring and the rest of the first member can be secured in two directions of movement of the first member relative to the second member, that is to say in the two directions defined by the direction D1.
  • the arrangement and the geometry of the elastic securing arms 10a; 10a ', 11a; 11a ', 12a; 12a' are adapted to transmit a torque greater, or even substantially greater, than the restoring torque produced by the elastic notching arms restoring against each other the first and second notching conformations.
  • the at least one first securing element is arranged so as to transmit a drive force from the first member relative to the second member, the intensity of which may be greater than or equal to 1.5 times, or even greater than or equal to 2 times, or even greater than or equal to 2.5 times, or even greater than or equal to 3 times the intensity of the notching effort.
  • the spring 1 is first of all placed on an annular seat 30 of the middle part 3, and at least one of the conformations 21, 31, 41 is placed in a recess 40 of the annular cam 4 which is attached to the middle part 3.
  • the spring 1, by pre-winding the elastic arms 21a, 31a, 41a, is thus maintained in an angular and axial position pending a second assembly step.
  • the cam 4 encloses a seal 5 of the box 7.
  • the cam 4 carries an annular retaining element 6 of the bezel 2, such as that which is the subject of the patent application. EP1416341A1 .
  • This element 6 has an annular portion 6a designed to be inserted into an annular groove 2a of the bezel 2 during assembly of the bezel 2 on the middle part 3.
  • the first member 2 is put in place or placed on the second member 3.
  • the bezel 2 is secured axially to the middle part 3, by means of the annular element 6.
  • the figure 6 illustrates a sectional view of the notching device during step 2.
  • the bezel 2 is brought axially closer to the annular seat 30 of the middle part 3 and has a defined conformation so as to allow elastic deformation of the portion 6a of the element 6 and thus allow its insertion into the groove 2a of the telescope 2, as shown in the sectional view of the figure 7 .
  • the assembly of the bezel 2 on the middle part 3 can be carried out here whatever the angular position of the bezel 2 relative to the middle part 3, and is distinguished in this sense from the assembly of a notching device such as the one described in the request EP1431845 .
  • the bezel is then rotated by an indefinite angle so as to allow the insertion of the second securing elements 20b, 21b, 22b of the bezel 2 within the interstices 10b, 11b, 12b of the spring 1.
  • the elastic securing arms 10a; 10a ', 11a; 11a ', 12a; 12a' of the spring 1 are shaped to be elastically deformed under the effect of the second securing elements 20b, 21b, 22b during the rotation of the bezel 2, and in particular under the effect of the printed radial force by the ends 202b, 212b, 222b respective of the second securing elements of the telescope 2, until the insertion of the second securing elements within the interstices 10b, 11b, 12b.
  • the distal ends 100a; 100a ', 110a; 110a ', 120a; 120a ′ of the elastic securing arms can be provided with surfaces or ramps 102a; 102a ', 112a; 112a ', 122a; 122a 'inclined defined specifically to allow optimized retraction of the elastic securing arms as shown in the figure 3 .
  • This third assembly step thus corresponds to a bayonet type assembly step.
  • the elastic arm or arms for securing the spring are deformed in bending in the plane P of the spring during the retraction of the elastic arm or arms for securing.
  • the elastic securing arm or arms can be flexed deformed perpendicular to the plane P of the spring.
  • the elastic securing arms allowing the spring to be secured to the rest of the first member, in particular to the rest of the bezel are provided on the spring.
  • elastic securing arms allowing the spring to be secured to the rest of the first member, in particular to the rest of the bezel can be provided on the rest of the first member.
  • the spring may be provided with at least one projection intended to cooperate with the elastic arms of joining provided for the rest of the first member, in particular on the rest of the telescope.
  • the elastic arm or arms may be produced on a main body of the first member, in particular of the bezel, or may be produced on a ring attached to the main body of the first member, in particular of the bezel.
  • the catch spring is designed to be secured to the bezel.
  • the spring thus shaped can thus be intended to receive a force F for driving a telescope or a back of the middle relative to a middle.
  • the catch spring according to the same principle may also be intended to receive a force F for driving a telescope or a back of the middle relative to said middle.
  • the elastic securing arms are organized in pairs so as to form a gap between the free ends of the arms of a pair.
  • one of the arms of the pair could be replaced by a rigid stop.
  • a gap for receiving a second fastening element is produced between the rigid stop and the end of an arm.
  • the first joining elements are then no longer symmetrical and the joining can no longer be carried out except by displacement in one direction of the component of the first member relative to the spring.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
EP18177590.9A 2018-06-13 2018-06-13 Vorrichtung zur rastung einer uhr Pending EP3582028A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18177590.9A EP3582028A1 (de) 2018-06-13 2018-06-13 Vorrichtung zur rastung einer uhr
US16/424,858 US11609538B2 (en) 2018-06-13 2019-05-29 Watch notching device
JP2019103481A JP2020020780A (ja) 2018-06-13 2019-06-03 小型時計刻み装置
CN201910511928.9A CN110597042B (zh) 2018-06-13 2019-06-13 表齿合装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18177590.9A EP3582028A1 (de) 2018-06-13 2018-06-13 Vorrichtung zur rastung einer uhr

Publications (1)

Publication Number Publication Date
EP3582028A1 true EP3582028A1 (de) 2019-12-18

Family

ID=62636030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18177590.9A Pending EP3582028A1 (de) 2018-06-13 2018-06-13 Vorrichtung zur rastung einer uhr

Country Status (4)

Country Link
US (1) US11609538B2 (de)
EP (1) EP3582028A1 (de)
JP (1) JP2020020780A (de)
CN (1) CN110597042B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4020097A1 (de) * 2020-12-22 2022-06-29 Rolex Sa Feder für ein rastungssystem und rastungssystem eines uhrwerks
EP4123394A1 (de) * 2021-07-22 2023-01-25 Rolex Sa Ring zur mechanischen verbindung von zwei uhrenkomponenten

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3712716B1 (de) * 2019-03-21 2023-03-15 Rolex Sa Lünette einer uhr
EP3958067A1 (de) 2020-08-17 2022-02-23 The Swatch Group Research and Development Ltd Vorrichtung zur befestigung eines bodens auf einem gehäuserahmen einer uhr

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EP0403717A1 (de) * 1989-06-19 1990-12-27 Roventa-Henex SA Uhr mit einer drehbaren Lünette
US5319617A (en) * 1991-06-07 1994-06-07 Casio Computer Co., Ltd. Apparatus case with a rotatable member
EP1416341A2 (de) 2003-09-03 2004-05-06 Rolex S.A. Verbindungsvorrichtung zwischen einer Lunette und einem Uhrgehäuse
EP1431845A1 (de) 2002-12-20 2004-06-23 Rolex S.A. Uhrgehäuse
EP2672333A1 (de) 2012-06-06 2013-12-11 Omega SA System eines drehbaren Außenrings (einer Uhr)
EP3276187A1 (de) 2016-07-26 2018-01-31 Omega SA Untereinheit zum zusammensetzen einer uhr, armbanduhr oder eines schmuckstücks

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US5654941A (en) * 1995-05-26 1997-08-05 Walca Sa Device for fastening a rotationally symmetrical part, in particular a rotatable ring, a back cover or a watch-glass to a watchcase
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JP3712911B2 (ja) * 2000-03-30 2005-11-02 セイコーインスツル株式会社 回転ベゼル付き腕時計ケース
TWI265387B (en) * 2002-03-11 2006-11-01 Swatch Group Man Serv Ag Mysterious rotating bezel
EP2624076B1 (de) * 2012-02-06 2014-12-31 Montres Tudor S.A. Armbanduhrgehäuse, das mit einem verdrehbaren und gekoppeltem Glasreif ausgestattet ist
DK2917790T3 (da) * 2012-05-25 2019-07-15 James J Jacobi Jr Horologe med opbevaret og interchangeable face
EP2672332B1 (de) * 2012-06-06 2019-11-13 Omega SA Verbessertes System eines drehbaren Außenrings (einer Uhr)
JP6255015B2 (ja) * 2013-06-20 2017-12-27 シチズン時計株式会社 時計
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
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EP3267268B1 (de) * 2016-07-08 2019-06-05 Omega SA Untereinheit zur verkleidung einer armbanduhr
CN109478044B (zh) * 2016-07-20 2021-02-12 西铁城时计株式会社 便携式电波钟表

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403717A1 (de) * 1989-06-19 1990-12-27 Roventa-Henex SA Uhr mit einer drehbaren Lünette
US5319617A (en) * 1991-06-07 1994-06-07 Casio Computer Co., Ltd. Apparatus case with a rotatable member
EP1431845A1 (de) 2002-12-20 2004-06-23 Rolex S.A. Uhrgehäuse
EP1416341A2 (de) 2003-09-03 2004-05-06 Rolex S.A. Verbindungsvorrichtung zwischen einer Lunette und einem Uhrgehäuse
EP2672333A1 (de) 2012-06-06 2013-12-11 Omega SA System eines drehbaren Außenrings (einer Uhr)
EP3276187A1 (de) 2016-07-26 2018-01-31 Omega SA Untereinheit zum zusammensetzen einer uhr, armbanduhr oder eines schmuckstücks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4020097A1 (de) * 2020-12-22 2022-06-29 Rolex Sa Feder für ein rastungssystem und rastungssystem eines uhrwerks
US11977355B2 (en) 2020-12-22 2024-05-07 Rolex Sa Spring for a notching system and timepiece notching system
EP4123394A1 (de) * 2021-07-22 2023-01-25 Rolex Sa Ring zur mechanischen verbindung von zwei uhrenkomponenten

Also Published As

Publication number Publication date
JP2020020780A (ja) 2020-02-06
US11609538B2 (en) 2023-03-21
CN110597042B (zh) 2022-10-11
US20190384224A1 (en) 2019-12-19
CN110597042A (zh) 2019-12-20

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