EP4006647B1 - Couronne-poussoir pour pièce d'horlogerie - Google Patents

Couronne-poussoir pour pièce d'horlogerie Download PDF

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Publication number
EP4006647B1
EP4006647B1 EP20209679.8A EP20209679A EP4006647B1 EP 4006647 B1 EP4006647 B1 EP 4006647B1 EP 20209679 A EP20209679 A EP 20209679A EP 4006647 B1 EP4006647 B1 EP 4006647B1
Authority
EP
European Patent Office
Prior art keywords
crown
push
button
cage
base
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
EP20209679.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4006647A1 (fr
Inventor
Hervé AVRIL
Daniel Danguzov
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 EP20209679.8A priority Critical patent/EP4006647B1/fr
Priority to US17/369,041 priority patent/US11762335B2/en
Priority to JP2021119358A priority patent/JP7186834B2/ja
Priority to CN202111412058.3A priority patent/CN114545755A/zh
Publication of EP4006647A1 publication Critical patent/EP4006647A1/fr
Application granted granted Critical
Publication of EP4006647B1 publication Critical patent/EP4006647B1/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
    • 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
    • G04B3/043—Locking of the operating element, also by mounting in a concealed place
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display
    • G04C3/004—Magnetically controlled
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/008—Mounting, assembling of components
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/08—Touch switches specially adapted for time-pieces

Definitions

  • the present invention relates to the field of watchmaking and more specifically to an arrangement of a spring within a push-crown and the means making it possible to accompany the rotation of the push-crown with a click.
  • the push-crowns fitted to timepieces are fitted with a return spring which is positioned around the stem of the crown.
  • the spring generally bears at one end under the crown head and at its other end on a bearing surface of the crown tube or on a washer arranged on this same bearing surface. In use, the relative movement between the spring and the rotating components of the pusher-crown causes a scraping phenomenon and thereby premature wear of the spring.
  • a crown-pusher provided with a spring disposed within a cage integral in rotation with the movement of the head, the spring being arranged within the cage so as to be driven in rotation with the cage.
  • This arrangement of the spring within a cage makes it possible to avoid a scraping effect between the spring and the winding bottom of the crown and thereby to increase the life of the spring. Since the cage rotates with the spring when an action is performed on the push-crown, the spring is not subject to relative movement with a component.
  • the cage having faces of a shape similar to that of the faces on which it bears, normal friction is present in the bearing zone, which makes it possible to guarantee continuous driving of the ring gear.
  • the push-crowns fitted with the spring cage according to the aforementioned application are fitted, among other things, to electronic watches.
  • the crown pusher is then kinematically linked to a multipolar magnet intended to cooperate with one or more sensors.
  • the rotation of the push-crown is therefore not subjected to mechanical resistance with, as a corollary, that the user may have the impression of turning the head of the push-crown in a vacuum.
  • the object of the present invention is to improve the crown pusher provided with the spring cage according to the prior art.
  • the base of the spring cage is provided with cells cooperating with protrusions formed in a washer arranged on the seat of the tube of the push-button crown.
  • the rotation of the push-crown is then accompanied by a click when the protrusions pass through the cells, which allows the user to ensure that the head of the push-crown is actually rotating.
  • the shape of the protuberances and the corresponding cells has been determined by finite elements to guarantee a click without the risk of blocking the crown due to the force of the spring.
  • the number of these protuberances and corresponding dimples has also been determined to adjust the desired torque. These parameters were associated with the theoretical speeds of rotation of the pusher-crown and with tests to avoid the entry into resonance of the system as well as not to penalize the fatigue life of the spring.
  • This design with a washer makes it possible to adjust the design of the washer on the basis of several technical parameters by modifying only one part which is the washer and not the entire system of the pusher-crown.
  • the present invention relates to a push-crown intended to equip a timepiece.
  • the rotation of the push-crown is accompanied by a "click" allowing the user to feel that he has correctly actuated the push-crown.
  • the push-crown according to the invention is more specifically suitable for an application where the actuation takes place without mechanical resistance, for example for an electronic watch or for a mechanical watch provided with a magnetic push-crown.
  • the timepiece conventionally comprises a case 1 fitted with a middle part 2 and a push-piece crown 3 comprising a recessed head 4 secured to a stem 7 moving in a tube 6 fixed to the middle part.
  • the tube 6 is crossed by the rod 7 connected to the hollow head 4.
  • the hollow head 4 is mounted so as to be able to move in translation and in rotation respectively along and around the axis 7a of the rod 7.
  • stem 7 is fixed at its base to a retaining element 8.
  • a magnet 9 for example a multipolar magnet, is fixed to the distal end of stem 7 intended to cooperate with one or more sensors (not shown).
  • the stem can actuate a function such as a chronograph function.
  • the push-button crown 3 further comprises a spring 10 arranged around the rod 7.
  • the return spring 10 is mounted in compression within a cage 11 visible in more detail at picture 3 .
  • the cage 11 is arranged between the tube 6 and the rod 7. It bears at one axial end on an inner face of the hollow head 4 and at its other axial end on a seat 6a of the tube 6 or, preferably, on a washer 14 promoting sliding, washer 14 being arranged on this same seat 6a.
  • the cage 11 is made in two distinct upper 12 and lower 13 parts with the upper part 12 integral with the hollowed head 4.
  • the upper part 12 is fixed to a core 5 extending partially around the rod 7 from the inner face of the recessed head 4.
  • the two upper 12 and lower 13 parts cooperate or, in other words, fit together.
  • the upper part 12 of the cage is integral in rotation with the hollow head 4, while the lower part 13 of the cage is axially free with respect to the hollow head but driven in rotation by the upper part of the cage during rotation hollowed out head.
  • the upper part 12 is mounted on the lower part 13 so as to be able to move in translation along the axis 7a of the rod 7 when the push-button crown is depressed.
  • Different configurations are possible to ensure the rotational cooperation of the two parts and the translational movement of the upper part relative to the lower part.
  • the upper part 12 has at least one portion 12f nested in an opening 13b of the lower part 13.
  • the upper part may have at least one sliding portion within a slide provided on an inner wall of the lower part.
  • each part 12, 13 has a cylindrical shape with a side wall 12a, 13a provided with at least one opening 12b, 13b and preferably two openings, or even three, four, etc. openings.
  • the side wall 12a, 13a is delimited at one end by a base 12c, 13c pierced with a central hole and at the other end by a completely open base 12d, 13d.
  • the openings 12b, 13b cut in the side wall 12a, 13a define the contours of a U. In the example shown, the two openings are diametrically opposed.
  • the openings 12b, 13b are delimited by portions 12f, 13f of the side wall 12a, 13a.
  • the side wall 12a, 13a is thus formed of portions 12f, 13f framed by the openings 12b, 13b.
  • the two 12,13 parts are mounted in opposite directions relative to each other, coaxially along the rod 7 and with an angular displacement of 90 ° relative to each other.
  • the open bases 12d, 13d face each other and the portions 12f of the side wall 12a of the upper part 12 are nested in the openings 13b of the side wall 13a of the lower part 13 so as, on the one hand, to allow the movement in translation of the upper part relative to the lower part and, on the other hand, so that the upper part in rotation can drive the lower part in its movement.
  • the spring 10 is housed in the cage 11 between the two pierced bases of the central hole 12c, 13c in the space delimited by the side walls 12a, 13a and the rim 12e, 13e of the central holes. This arrangement allows in use to rotate the spring with the cage, which prevents its premature aging caused by a relative movement between the spring and a rotating component.
  • the cage 11 comprises on the base 13c of its lower part 13, and more precisely on the face of the cage facing the seat 6a, cells 18 intended to cooperate with protrusions 17 provided in the washer 14 as shown in figures 3, 4 And 7 .
  • the protuberances and the cells are present in the same number and are of complementary shape so as to fit into each other. Thanks to the protuberances passing from cells to cells, the rotation of the push-crown is accompanied by a click.
  • the cells and the protuberances are distributed with a regular angular interval respectively on the base 13c of the cage 13 and the upper face 14a of the washer 14.
  • the protuberances and the cells in projection in the plane of the base and of the puck have an oval shape with a rim widening towards the perimeter of the puck and the base.
  • the cells and the protuberances have a cross-section in the form of an arc of a circle, the arc of a circle having an increasing length in the direction of the perimeter of the washer and of the base of the cage.
  • transverse is meant the direction perpendicular to the radial direction and the direction parallel to the axis 7a of the rod 7.
  • the cells and the protuberances are distributed over the periphery of the base of the cage and of the upper face of the washer. More preferably, the protuberances and the cells open out onto the perimeter respectively of the washer and of the base of the cage.
  • the cells 18 are dug in the thickness of the bevel 13g of the base 13C of the lower part 13 of the cage ( fig.4 ). Along its axis of symmetry 18a towards the periphery of the base, the cell 18 has a depth that increases linearly from the plane of the base to a depth corresponding to the thickness of the bevel 13g at the periphery ( fig.6B ).
  • the washer 14 comprises curved protuberances 17 intended to be housed in the cells 18.
  • the protrusions 17 have an increasing thickness along their axis of symmetry 17a until they emerge on the perimeter of the washer 14 with a vertical wall in an arc of a circle 17b aligned with the vertical wall 14b of the washer ( figs. 3 , 7 And 8 ).
  • the vertical wall 14b of the washer is also provided with lugs 19 extending radially, the lugs being intended to block the washer in rotation within the tube ( figs. 7 And 9 ).
  • the protrusions could be provided on the base of the cage and the cells in the washer without departing from the scope of the invention.
  • the present invention does not exclude the protrusions from being machined directly in the seat of the tube, the crown-pusher then being devoid of a washer.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Prostheses (AREA)
EP20209679.8A 2020-11-25 2020-11-25 Couronne-poussoir pour pièce d'horlogerie Active EP4006647B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20209679.8A EP4006647B1 (fr) 2020-11-25 2020-11-25 Couronne-poussoir pour pièce d'horlogerie
US17/369,041 US11762335B2 (en) 2020-11-25 2021-07-07 Crown-push-button for a timepiece
JP2021119358A JP7186834B2 (ja) 2020-11-25 2021-07-20 計時器のリュウズ押しボタン
CN202111412058.3A CN114545755A (zh) 2020-11-25 2021-11-25 用于时计的表冠按钮

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20209679.8A EP4006647B1 (fr) 2020-11-25 2020-11-25 Couronne-poussoir pour pièce d'horlogerie

Publications (2)

Publication Number Publication Date
EP4006647A1 EP4006647A1 (fr) 2022-06-01
EP4006647B1 true EP4006647B1 (fr) 2023-05-10

Family

ID=73597865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20209679.8A Active EP4006647B1 (fr) 2020-11-25 2020-11-25 Couronne-poussoir pour pièce d'horlogerie

Country Status (4)

Country Link
US (1) US11762335B2 (ja)
EP (1) EP4006647B1 (ja)
JP (1) JP7186834B2 (ja)
CN (1) CN114545755A (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100187074A1 (en) * 2008-12-31 2010-07-29 Suunto Oy Two-function controlling device for a wrist computer or alike and method for controlling a wrist computer or suchlike terminal
EP3339966B1 (fr) * 2016-12-23 2020-06-24 Rolex Sa Poussoir pour pièce d'horlogerie

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH692068A5 (fr) * 1998-03-05 2002-01-15 Ebauchesfabrik Eta Ag Boîte de montre munie de moyens de commande.
CH705649B1 (fr) 2000-02-08 2013-04-30 Boninchi Sa Dispositif permettant le réglage de l'orientation d'une couronne à vis d'une montre par rapport à la carrure de la montre.
JP2001337180A (ja) * 2000-03-21 2001-12-07 Citizen Watch Co Ltd 腕時計
JP2002071838A (ja) * 2000-08-31 2002-03-12 Citizen Watch Co Ltd 腕時計
US7318670B2 (en) * 2003-10-21 2008-01-15 Richemont International Sa Wristwatch push-piece winding button control device
ATE457073T1 (de) * 2007-11-08 2010-02-15 Meco Sa Krone für uhr
CH699558B1 (fr) * 2008-09-22 2013-06-14 Boninchi Sa Couronne à vis à soupape ou à poussoir intégré.
EP2367075B1 (fr) * 2010-03-17 2017-07-26 Meco S.A. Couronne de remontage pour pièce d'horlogerie
CH703622B1 (fr) * 2010-08-23 2015-04-30 Richemont Int Sa Poussoir à seuil de déclenchement pour pièce d'horlogerie.
CH708958B1 (fr) * 2013-12-13 2018-02-28 Boninchi Sa Poussoir de pièce d'horlogerie.
JP6601664B2 (ja) * 2015-07-29 2019-11-06 カシオ計算機株式会社 回転操作装置および時計
EP3287855B1 (fr) * 2016-08-26 2019-05-01 Meco S.A. Couronne de reglage pour piece d'horlogerie
JP6829116B2 (ja) * 2017-03-13 2021-02-10 セイコーインスツル株式会社 りゅうずロック機構付き時計
US10725429B2 (en) 2017-05-24 2020-07-28 Omega Sa Timepiece containing a locking device for a pusher
EP3432086B1 (fr) * 2017-07-20 2020-04-15 Meco S.A. Soupape de sécurité pour pièce d'horlogerie
JP6465327B1 (ja) * 2018-03-06 2019-02-06 セイコーインスツル株式会社 時計
EP3594758A1 (fr) * 2018-07-09 2020-01-15 Tissot S.A. Montre pourvue d'une lunette tournante avec systeme de verrouillage de la lunette muni d'une soupape a helium integree
EP3828641B1 (fr) * 2019-11-29 2022-07-20 Meco S.A. Couronne-poussoir pour pièce d'horlogerie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100187074A1 (en) * 2008-12-31 2010-07-29 Suunto Oy Two-function controlling device for a wrist computer or alike and method for controlling a wrist computer or suchlike terminal
EP3339966B1 (fr) * 2016-12-23 2020-06-24 Rolex Sa Poussoir pour pièce d'horlogerie

Also Published As

Publication number Publication date
CN114545755A (zh) 2022-05-27
US20220163921A1 (en) 2022-05-26
US11762335B2 (en) 2023-09-19
JP7186834B2 (ja) 2022-12-09
EP4006647A1 (fr) 2022-06-01
JP2022083966A (ja) 2022-06-06

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