EP4024137B1 - Dispositif de commande d'une pièce d'horlogerie - Google Patents

Dispositif de commande d'une pièce d'horlogerie Download PDF

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Publication number
EP4024137B1
EP4024137B1 EP20217969.3A EP20217969A EP4024137B1 EP 4024137 B1 EP4024137 B1 EP 4024137B1 EP 20217969 A EP20217969 A EP 20217969A EP 4024137 B1 EP4024137 B1 EP 4024137B1
Authority
EP
European Patent Office
Prior art keywords
crown
tube
knurling
roller
control
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
EP20217969.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4024137A1 (fr
Inventor
Hervé AVRIL
Gregory Kissling
Rémy THIRY
Valon Hoti
Samuel GEISER
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.)
Meco SA
Original Assignee
Meco 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 Meco SA filed Critical Meco SA
Priority to EP20217969.3A priority Critical patent/EP4024137B1/fr
Priority to US17/399,316 priority patent/US11703802B2/en
Priority to JP2021136054A priority patent/JP7164684B2/ja
Priority to CN202111661042.6A priority patent/CN114815563A/zh
Publication of EP4024137A1 publication Critical patent/EP4024137A1/fr
Application granted granted Critical
Publication of EP4024137B1 publication Critical patent/EP4024137B1/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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/046—Operation by rotation and axial movement with extra function of axial shift of operating element, e.g. crown combined with push button
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/045—Storing the operating element, also bringing it out of storage
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/041—Construction of crowns for rotating movement; connection with the winding stem; winding stems
    • 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
    • G04B37/00—Cases
    • G04B37/06—Forming the passage for the winding stem through the case; Divided winding stems
    • 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
    • G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
    • G04B3/04—Rigidly-mounted keys, knobs or crowns
    • G04B3/043—Locking of the operating element, also by mounting in a concealed place
    • 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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
    • G04B37/103—Hermetic sealing of openings, joints, passages or slits of winding stems by screwing the crown onto the case

Definitions

  • the invention relates to a device for controlling a timepiece, such as a wristwatch, in particular a wristwatch comprising a mechanical movement.
  • the setting and/or winding of a mechanical watch is conventionally carried out by a control crown which is operable in rotation and in traction, generally located at the 3 o'clock position on the periphery of the watch.
  • the crown is attached to a control stem which can be moved axially according to several axial positions corresponding to each function to be actuated, such as manual winding of the movement, setting the time, setting the date and/or setting other indicators moving above or below the watch face.
  • the control crown which protrudes from the watch case sometimes needs to be protected, for example to avoid causing the inadvertent engagement of a function by snagging, or worse, the deterioration of the winding stem.
  • watches have been designed with crowns embedded in the wall of the case in order to protect it from the risks of shocks to which it is exposed.
  • access to this type of crown is not always easy for the user, in particular when it comes to pulling the crown to move it into its different axial positions for controlling the different functions.
  • the document FR2783939 discloses a retractable crown in a well of the watch case.
  • the invention aims to solve the problems mentioned above.
  • a timepiece according to the invention comprises a crown which can be housed in a cavity provided in the case of the timepiece and open to the outside, such as a cavity in the side wall of the case of a wristwatch, so that the crown is housed entirely in the cavity or flush with the side wall when it is not in use, i.e. in the rest position of the crown.
  • the user will turn a fixed rotary knob in the axial direction of the crown.
  • the knob is accessible from the top of the box.
  • the wheel is coupled to a tube in which is inserted a cylindrical crown body secured to the crown.
  • the rotation of the wheel causes a rotation as well as a translation of the tube, which is linked to it only in translation to said cylinder.
  • the tube moves the crown in the axial direction without rotating the crown around its central axis.
  • the crown is coupled in rotation to a control rod to actuate one or more functions of the movement of the timepiece, depending on the axial position of the rod.
  • the invention makes it possible to reach at least one control position of the crown and of the stem, by turning the wheel, therefore without manually pulling the crown outwards.
  • the crown protrudes from the wall, which makes it possible to turn the crown manually as in existing control devices.
  • the user will turn the wheel in the opposite direction.
  • the coupling between the tube and the wheel can be achieved by a connection by threading.
  • this connection is configured to control the movement of the crown towards all the control positions available to adjust various functions of a watch movement. More particularly and according to a preferred form, the connection by threading is made between an internal thread which extends over a length of the central bore of the wheel and an external thread which extends over the entire length of the tube or over a part of said length of the tube, thus making it possible to reach several control positions without losing the coupling by said connection by threading between the tube and the knob.
  • connection only makes it possible to reach some of the control positions, the other positions being able to be reached by manually pulling the crown. More particularly and according to a preferred form, the connection by threading is made between an internal thread which extends at least over part of the length of the central bore of the knurl and an external thread which extends over a limited portion of the length of the tube, so that the coupling between the knob and the tube is lost when the crown reaches one of the control positions from the rest position, and in that the coupling can be restored by pushing the crown manually towards the inside the box then by rotating the wheel.
  • connection between the tube and the knob is made by a helical profile provided on the outer surface of the tube, cooperating with a plurality of radial pins fixed inside the knob.
  • the tube is provided with a helical profile on its outer surface, said profile defining a groove extending in the manner of a helix along said tube
  • the wheel is provided with one or several pins oriented radially with respect to the surface of the central bore of the knurl and arranged in a single plane perpendicular to the central axis, the pins penetrate into said groove, so that the rotation of the knurl in one or the other direction of rotation causes a rotation of the tube as well as a translation of the tube in one or the other axial direction.
  • the pins are mounted in a sleeve driven inside the central hole of the wheel.
  • the cylinder crown body forms a hollow cylinder with an internal section of polygonal shape, and an end part of the control rod is arranged inside said hollow cylinder, said end part of the control rod comprising a polygonal section portion corresponding to the internal section of the hollow cylinder, the control rod being arranged so that during the translation of the crown between the rest position and a first control position projecting from the wall, the rod remains stationary with respect to the box.
  • control rod is arranged such that when the crown moves in translation beyond the first control position, the rod is driven with the crown towards one or more different control positions.
  • a spring is arranged between a shoulder of the control rod and the crown head.
  • the wheel is provided at its outer periphery with one or more markings indicating one or more angular positions of the wheel which correspond respectively to one or more control positions of the rod.
  • the timepiece is a wristwatch with mechanical movement and manual winding.
  • the first control position allows manual winding of the movement, and in that a second control position allows adjustment of the hours and minutes.
  • the crown is level with the wall of the box when the crown is in the rest position.
  • the wall of the box comprises a through-housing extending perpendicular to the cavity housing the crown and facing the latter and the wheel is arranged in this housing.
  • the invention thus makes it possible to house the crown in a cavity provided in a watch case, so that the crown does not interfere with the user of the watch when it is in its rest position, and to cause the crown to come out of the rest position without manually pulling the crown outwards.
  • FIG 1 And 2a to 2d represent a control device incorporated in the case 1 of the watch.
  • Box 1 contains a mechanical clockwork not shown in the figure but which can also be an electronic or electromechanical clockwork known in the state of the art.
  • the control device comprises a crown 4 formed of a crown head 4a and a hollow cylindrical crown body 18 which is housed in a cavity 10 open to the outside and provided in the side wall 14 of the box 1.
  • the crown 4 is flush with the surface of the wall 14. This condition represents the state of rest of the control device, in effect when the device is not used by the user of the watch.
  • the crown 4 could also be housed entirely in the cavity 10 instead of coming flush with the wall 14.
  • the user will turn a rotary wheel 5 provided with a central hole, arranged coaxially to the axis of rotation 6 of the crown 4, and of which an upper part is accessible to the user. from the top of the case 1.
  • the wheel 5 is free to rotate around the axis 6 and immobile in the axial direction of the crown 4.
  • the axis of rotation 6 of the crown coincides with the central axis of a control rod 7 capable of cooperating with a movement mechanism, in a manner known per se and not detailed in the present context.
  • the control rod 7 is guided inside a fixed shouldered sleeve 8, screwed into a wall of the case 1 of the watch at the bottom of the cavity 10.
  • a seal 9 is placed in an internal groove of the sleeve between sleeve 8 and control rod 7.
  • wheel 5 is arranged around of a tube 15 and coupled to this tube 15 by a connection by threading 16, so that the rotation of the knob 5 causes a rotation as well as an axial translation of the tube 15, the tube 15 being coaxial with the central axis 6 of the control rod 7.
  • the tube 15 In the rest position shown in figure 2a , the tube 15 extends as far as a shoulder 11 inside the cavity 10.
  • the tube 15 surrounds the sleeve 8, being axially movable and rotatable relative to the latter.
  • the tube 15 surrounds a hollow cylindrical crown body 18 integral with the crown 4.
  • the crown body 18 is also coaxial with the central axis 6.
  • the end of the tube 15 is in contact with the face rear of the crown 4.
  • the tube 15 In its inner middle part the tube 15 is provided with a shoulder 19 against which rests a ring 20 fixed around the distal part of the cylindrical crown body 18.
  • the crown body 18 and tube 15 are therefore integral with each other.
  • the crown body 18 is free in rotation with respect to the tube 15 and vice versa.
  • the section of the interior of the hollow cylindrical crown body 18 is non-circular, for example square or having another polygonal shape.
  • the control rod 7 is inserted into the hollow crown body 18 and coupled in rotation to said crown body 18 and therefore to crown 4, by a portion 25 of polygonal section, corresponding to the section of the interior of the crown body 18.
  • a compression spring 26 is mounted between the polygonal portion 25 and the bottom of the hollow crown body 18. Said polygonal portion 25 can move in translation relative to the crown body 18, between two stops, shown on one side by the spring 26, and on the other side by a ring 27 driven against a shoulder formed at the distal end and inside the crown body 18.
  • the user can extract the crown head 4a without it rotating.
  • the tube 15 moves outwards by rotating around the central axis 6, and drives the crown body 18 and therefore the crown head 4a, which will come out of its housing inside the cavity 10, to reach a first control position projecting from the case 1, as shown in figure 2b .
  • the crown 4 does not rotate around the central axis 6 during this movement, since it is decoupled in rotation from the tube 15.
  • the control rod 7 remains stationary until the ring 27 comes into contact with the portion polygonal 25 of the rod 7, corresponding to said first control position.
  • the extraction of the crown 4 is also actuated by the spring 26 which relaxes during the movement of the cylinder 18 towards the outside.
  • the user can now turn the crown 4 around its central axis 6, and relative to the tube 15 which remains stationary, driving the rod 7 in rotation, to actuate a first function of the movement, for example the manual winding of the last.
  • crown 4 is moved axially towards a second control position, shown in figure 2c . Since the ring 27 is now in contact with the polygonal portion 25 of the rod 7, said rod 7 is driven in translation with the crown 4, ie the rod 7 is withdrawn relative to the sleeve 8 towards an axial position which allows activate a second function, for example setting the hour and minutes.
  • one or more markings are present on the outer peripheral or lateral surface of knob 5.
  • the markings indicate the angular positions of knob 5 corresponding to the control positions of rod 7. Said positions are reached at moment when the wheel markings arrive in front of a fixed marking on the upper surface of the box 1 for example.
  • connection by thread 16 between the tube 15 and the wheel 5 represents only one embodiment of the coupling between the wheel 5 and the tube 15.
  • this device requires several turns of wheel 5 to reach the first control position and possibly again several turns to reach the other control positions.
  • THE figures 3a to 3d show a second embodiment of the coupling between the tube 15 and the wheel 5.
  • the tube 15 is now provided with a helical profile 35 on its outer surface, which defines a groove which extends like a helix over the entire outer surface of the tube 15.
  • a sleeve 36 is driven inside the central bore of the wheel 5.
  • the sleeve 36 holds a plurality of radial pins 37 which penetrate into the groove with a certain clearance. pins typically two in number are arranged in the same plane perpendicular to the axis 6, preferably in the middle of the length of the wheel 5 (length measured in the direction of the axis 6). The rotation of the wheel 5 thus actuates the rotation and the translation of the tube 15.
  • the advantage of this embodiment is that the axial displacement of the tube 15 to reach the three control positions is now actuated by a rotation over a distance smaller angle of the wheel 5 than is the case in the embodiment described above.
  • the pitch of the propeller is arranged so that all of the axial positions of the crown are reached in one rotation less than one complete revolution of the wheel. Markings on the dial can also indicate to the user the positions of the dial 5 corresponding to the control positions of the crown 4 and the stem 7.
  • connection by thread 16 is made between an internal thread 12 which extends over the complete length (seen in the direction of the axis 6) of the central bore of the knob 5 and an external thread 13 which extends over the full length of the tube 15.
  • the connection by threading 16 makes it possible to reach the three control positions and to bring the crown 4 back to its rest position without losing the coupling between the wheel 5 and the tube 15. the user therefore does not have to manually push or pull the crown, as is the case in existing control devices.
  • connection by threading does not make it possible to reach all the control positions, and the user is obliged to manually pull the crown to reach a number of additional positions.
  • FIGS 4a-4d An example of this latter embodiment is shown in figures 4a-4d .
  • a connection by thread 16 between the tube 15 and the wheel 15 is made in this case between an internal thread 12 over a large part of the length of the central bore of the wheel 5 and an external thread 13' which extends only over a limited part of the length of the tube 15.
  • the threaded connection 16 always allows the crown 4 to come out of its rest position illustrated in figure 4a , as in the previous forms. However, the coupling between the threads 12 and 13' is lost when the crown 4 reaches the first control position, see figure 4b .
  • crown 4 To bring the crown to its other positions, the user must manually pull the crown 4 out of the case 1, see figures 4c and 4d , as in existing control devices. To bring the crown back to the rest position, the user must push the crown 4 back until it brings it in the first position until the connection between the knob and the tube is engaged. Once the thread of the knob engages that of the tube, crown 4 can be returned to its rest position by turning knob 5.
  • control rod 7 could be integral with crown 4, so that rod 7 is extracted as soon as crown 4 moves from the rest position.
  • cylinder 18 could be a solid cylinder instead of a hollow cylinder, and spring 26 would be omitted.
  • the number of control positions is not defined and can vary between just one and any number achievable for a specific timepiece movement.
  • the invention is advantageously applicable to mechanical watch movements with manual winding, but it is also applicable to electronic watches of the quartz or other type, in particular electronic watches comprising analog display members.
  • the materials used for the various components are preferably metals.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
EP20217969.3A 2020-12-31 2020-12-31 Dispositif de commande d'une pièce d'horlogerie Active EP4024137B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20217969.3A EP4024137B1 (fr) 2020-12-31 2020-12-31 Dispositif de commande d'une pièce d'horlogerie
US17/399,316 US11703802B2 (en) 2020-12-31 2021-08-11 Device for controlling a timepiece
JP2021136054A JP7164684B2 (ja) 2020-12-31 2021-08-24 時計を制御するためのデバイス
CN202111661042.6A CN114815563A (zh) 2020-12-31 2021-12-31 用于控制时计的装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20217969.3A EP4024137B1 (fr) 2020-12-31 2020-12-31 Dispositif de commande d'une pièce d'horlogerie

Publications (2)

Publication Number Publication Date
EP4024137A1 EP4024137A1 (fr) 2022-07-06
EP4024137B1 true EP4024137B1 (fr) 2023-08-23

Family

ID=74045400

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20217969.3A Active EP4024137B1 (fr) 2020-12-31 2020-12-31 Dispositif de commande d'une pièce d'horlogerie

Country Status (4)

Country Link
US (1) US11703802B2 (ja)
EP (1) EP4024137B1 (ja)
JP (1) JP7164684B2 (ja)
CN (1) CN114815563A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4092490A1 (fr) * 2021-05-19 2022-11-23 Meco S.A. Dispositif de commande d'un mouvement horloger avec retour tactile et pièce d'horlogerie, notamment montre, comprenant un tel dispositif

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142955A (en) * 1961-02-27 1964-08-04 Rene A Fiechter Power clutch for the main spring of watch movements and the like
CH472721A (fr) * 1966-06-14 1969-06-30 Boninchi Sa Dispositif de commande étanche d'un mécanisme de pièce d'horlogerie logé dans un boîtier
FR2783939B1 (fr) * 1998-09-25 2000-11-17 Herve Schick Dispositif de reglage pour montre etanche
DE20210345U1 (de) * 2002-07-03 2002-12-19 Damasko Petra Krone für Uhren, insbesondere für Armband- oder Taschenuhren, Kronenanordnung mit einer solchen Krone sowie Werkzeug zum Befestigen eines Einschraubtubus für eine Kronenanordnung an einem Uhrengehäuse
EP1586960A1 (fr) * 2004-04-14 2005-10-19 Meco S.A. Couronne pour pièce d'horlogerie avec dispositif de débrayage
EP2031468B1 (fr) * 2007-08-30 2010-05-26 ETA SA Manufacture Horlogère Suisse Montre pourvue d'un indicateur de fonctions
JP2010145098A (ja) * 2008-12-16 2010-07-01 Seiko Epson Corp 時計
EP2339413B1 (fr) * 2009-12-22 2012-09-12 The Swatch Group Research and Development Ltd. Mouvement d'horlogerie muni d'une alarme vibrante
EP2592500B1 (fr) * 2011-11-09 2019-01-16 Rolex S.A. Boîte de montre comportant une couronne à mémoire d'orientation
CH708356A1 (fr) * 2013-07-17 2015-01-30 Société Anonyme De La Manufacture D Horlogerie Audemars Piguet & Cie Dispositif de commande pour pièce d'horlogerie.
EP3123251B1 (fr) * 2014-03-26 2021-04-28 The Swatch Group Management Services AG Pièce d'horlogerie comportant un réhaut tournant
EP3376305B1 (fr) * 2017-03-17 2020-07-22 Harry Winston SA Dispositif de remontage a poussoir pour montre
JP6465327B1 (ja) * 2018-03-06 2019-02-06 セイコーインスツル株式会社 時計
US11181863B2 (en) * 2018-08-24 2021-11-23 Apple Inc. Conductive cap for watch crown

Also Published As

Publication number Publication date
JP7164684B2 (ja) 2022-11-01
EP4024137A1 (fr) 2022-07-06
JP2022105262A (ja) 2022-07-13
US20220206435A1 (en) 2022-06-30
CN114815563A (zh) 2022-07-29
US11703802B2 (en) 2023-07-18

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