EP3828641A1 - Push-crown for a timepiece - Google Patents

Push-crown for a timepiece Download PDF

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Publication number
EP3828641A1
EP3828641A1 EP19212451.9A EP19212451A EP3828641A1 EP 3828641 A1 EP3828641 A1 EP 3828641A1 EP 19212451 A EP19212451 A EP 19212451A EP 3828641 A1 EP3828641 A1 EP 3828641A1
Authority
EP
European Patent Office
Prior art keywords
push
crown
rod
cage
recessed head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19212451.9A
Other languages
German (de)
French (fr)
Other versions
EP3828641B1 (en
Inventor
M. Hervé AVRIL
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 EP19212451.9A priority Critical patent/EP3828641B1/en
Priority to US17/029,181 priority patent/US11366428B2/en
Priority to JP2020161732A priority patent/JP7025500B2/en
Priority to CN202011356150.8A priority patent/CN112882371B/en
Publication of EP3828641A1 publication Critical patent/EP3828641A1/en
Application granted granted Critical
Publication of EP3828641B1 publication Critical patent/EP3828641B1/en
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
    • G04B3/041—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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/002—The setting apparatus being crown shaped
    • 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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • 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
    • G04B29/00—Frameworks
    • G04B29/04—Connecting or supporting parts
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces

Definitions

  • the present invention relates to the field of watchmaking and more precisely to an arrangement of a spring within a push-piece crown.
  • the push-crowns fitted to timepieces are fitted with a return spring which is positioned around the stem of the crown.
  • the spring is generally supported at one end under the head of the crown 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 scratching phenomenon and thereby premature wear of the spring.
  • the object of the present invention is to remedy the aforementioned drawbacks by proposing a timepiece comprising a spring arranged within the pusher crown so as to eliminate the friction between the spring and the rotating components.
  • the present invention provides a push-piece crown provided with a spring arranged within a cage integral in rotation with the movement of the head, said 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.
  • the cage rotating with the spring when an action is performed on the push-piece crown, the spring is not subjected to relative movement with a component.
  • the cage having faces of a shape similar to that of the faces on which it rests, a normal friction is present in the support zone, which makes it possible to guarantee a continuous drive of the crown.
  • the present invention relates to a timepiece of the wristwatch type. It can be an electronic watch or a mechanical watch.
  • the timepiece conventionally comprises a case 1 provided with a middle part 2 and a push-piece crown 3 comprising a recessed head 4 integral with a rod 7 moving in a tube 6 fixed to the middle part.
  • the tube 6 is crossed by the rod 7 connected to the recessed head 4.
  • the recessed head 4 is mounted movable in translation and in rotation respectively along and around the axis 7a of the rod 7.
  • the rod 7 is integral at its base with a retaining element 8.
  • a magnet 9, for example a multipolar magnet is fixed to the distal end of the rod 7 intended to cooperate with one or more sensors (not shown).
  • the stem can actuate a function such as a chronograph function.
  • the push-piece crown 3 further comprises a spring 10 disposed around the rod 7.
  • the return spring 10 is mounted in compression within a cage 11 visible in more detail at the bottom. figure 3 .
  • the cage 11 is disposed between the tube 6 and the rod 7. It bears at one axial end on an inner face of the recessed 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 placed on this same seat 6a.
  • the cage 11 is made in two separate upper 12 and lower 13 parts with the upper part 12 integral with the recessed 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 into one another.
  • the upper part 12 of the cage is integral in rotation with the recessed head 4, while the lower part 13 of the cage is free axially with respect to the recessed head but driven in rotation by the upper part of the cage during the rotation. of the 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 stem 7 when the push-piece crown is pushed in. Different configurations are possible to ensure the cooperation in rotation 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 with 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 illustrated, 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 parts 12, 13 are mounted in the opposite direction 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, 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 cause the lower part in its movement.
  • the spring 10 is housed in the cage 11 between the two bases pierced with the central hole 12c, 13c in the space delimited by the side walls 12a, 13a and the flange 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 relative movement between the spring and a rotating component.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Toys (AREA)

Abstract

La présente invention se rapporte à une couronne-poussoir (3) comprenant :- un tube (6) fixé à un boîtier de montre (1),- une tête évidée (4) solidaire d'une tige (7) mobile par rapport au tube (6) et définissant un axe (7a), ladite tête évidée (4) étant montée mobile en rotation et en translation respectivement autour et le long de l'axe (7a) de la tige (7),- un ressort de rappel (10) disposé autour de la tige (7),la couronne-poussoir (3) étant caractérisée en ce qu'elle comporte une cage (11) abritant le ressort (10), ladite cage (11) étant traversée par la tige (7) et comportant une partie supérieure (12) solidaire de la tête évidée (4) et une partie inférieure (13) montée libre par rapport à la tête évidée (4), ladite partie supérieure (12) coopérant avec la partie inférieure (13) de manière à pouvoir entraîner dans son mouvement de rotation la partie inférieure (13) et de manière à pouvoir se déplacer en translation le long de l'axe (7a) par rapport à ladite partie inférieure (13), ledit ressort (10) étant monté en compression au sein de la cage (11) de manière à être entraîné en rotation avec ladite cage (11).The present invention relates to a push-piece crown (3) comprising: - a tube (6) fixed to a watch case (1), - a recessed head (4) secured to a rod (7) movable relative to the tube (6) and defining an axis (7a), said hollow head (4) being mounted to be movable in rotation and in translation respectively around and along the axis (7a) of the rod (7), - a return spring (10) arranged around the rod (7), the push-piece crown (3) being characterized in that it comprises a cage (11) housing the spring (10), said cage (11) being traversed by the rod ( 7) and comprising an upper part (12) integral with the recessed head (4) and a lower part (13) mounted free with respect to the recessed head (4), said upper part (12) cooperating with the lower part (13) ) so as to be able to drive the lower part (13) in its rotational movement and so as to be able to move in translation along the axis (7a) relative to said lower part (13) , said spring (10) being mounted in compression within the cage (11) so as to be driven in rotation with said cage (11).

Description

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

La présente invention se rapporte au domaine de l'horlogerie et plus précisément à un agencement d'un ressort au sein d'une couronne-poussoir.The present invention relates to the field of watchmaking and more precisely to an arrangement of a spring within a push-piece crown.

ARRIÈRE-PLAN TECHNOLOGIQUE ET ÉTAT DE LA TECHNIQUETECHNOLOGICAL BACKGROUND AND STATE OF THE ART

Les couronnes-poussoirs équipant les pièces d'horlogeries sont munies d'un ressort de rappel qui se positionne autour de la tige de la couronne. Le ressort prend généralement appui à une extrémité sous la tête de la couronne et à son autre extrémité sur une portée du tube de la couronne ou sur une rondelle disposée sur cette même portée. En utilisation, le mouvement relatif entre le ressort et les composants en rotation de la couronne-poussoir provoque un phénomène de grattage et par là-même une usure prématurée du ressort.The push-crowns fitted to timepieces are fitted with a return spring which is positioned around the stem of the crown. The spring is generally supported at one end under the head of the crown 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 scratching phenomenon and thereby premature wear of the spring.

Pour remédier à cet inconvénient, le document US 8371745 propose d'intercaler une rondelle favorisant le glissement à chaque extrémité du ressort. Bien que favorisant le glissement, le mouvement relatif entre la rondelle solidaire de la tête de couronne et le ressort induit toujours une friction qui ne permet pas un entraînement continu de la couronne.To remedy this drawback, the document US 8,371,745 proposes to insert a washer to promote sliding at each end of the spring. Although promoting sliding, the relative movement between the washer integral with the crown head and the spring still induces friction which does not allow continuous drive of the crown.

RÉSUMÉ DE L'INVENTIONSUMMARY OF THE INVENTION

La présente invention a pour but de remédier aux inconvénients précités en proposant une pièce d'horlogerie comportant un ressort agencé au sein de la couronne-poussoir de manière à supprimer le frottement entre le ressort et les composants en rotation.The object of the present invention is to remedy the aforementioned drawbacks by proposing a timepiece comprising a spring arranged within the pusher crown so as to eliminate the friction between the spring and the rotating components.

A cet effet, la présente invention propose une couronne-poussoir munie d'un ressort disposé au sein d'une cage solidaire en rotation du mouvement de la tête, ledit ressort étant agencé au sein de la cage de manière à être entraîné en rotation avec la cage.To this end, the present invention provides a push-piece crown provided with a spring arranged within a cage integral in rotation with the movement of the head, said spring being arranged within the cage so as to be driven in rotation with the cage.

Cet agencement du ressort au sein d'une cage permet d'éviter un effet de grattage entre le ressort et le fond de revidage de la couronne et par là-même d'augmenter la durée de vie du ressort. La cage tournant avec le ressort lorsqu'une action est effectuée sur la couronne-poussoir, le ressort n'est pas soumis à un mouvement relatif avec un composant. En outre, la cage ayant des faces de forme similaire à celle des faces sur lesquelles elle est en appui, un frottement normal est présent dans la zone d'appui, ce qui permet de garantir un entraînement continu de la couronne.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. The cage rotating with the spring when an action is performed on the push-piece crown, the spring is not subjected to relative movement with a component. In addition, the cage having faces of a shape similar to that of the faces on which it rests, a normal friction is present in the support zone, which makes it possible to guarantee a continuous drive of the crown.

Les caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description détaillée ci-dessous faisant référence aux figures suivantes.The characteristics and advantages of the present invention will become apparent on reading the detailed description below with reference to the following figures.

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

  • La figure 1 représente une vue en plan d'une pièce d'horlogerie munie d'une couronne-poussoir selon l'invention.The figure 1 shows a plan view of a timepiece provided with a push-piece crown according to the invention.
  • La figure 2 représente une vue en coupe longitudinale de la couronne-poussoir selon l'invention.The figure 2 shows a longitudinal sectional view of the push-piece crown according to the invention.
  • La figure 3 représente une vue tridimensionnelle de la cage de ressort selon l'invention.The figure 3 shows a three-dimensional view of the spring cage according to the invention.
  • La figure 4a représente une vue en plan de la cage de ressort selon l'invention. Les figures 4b et 4c sont respectivement des vues en coupe selon les axes A-A et B-B de la figure 4a.The figure 4a shows a plan view of the spring cage according to the invention. The figures 4b and 4c are respectively sectional views along the axes AA and BB of the figure 4a .
  • La figure 5a est une vue en demi-coupe longitudinale de la couronne-poussoir selon l'invention en position montée finale dans la pièce d'horlogerie. La figure 5b représente une même vue de la couronne-poussoir en position appuyée.The figure 5a is a longitudinal half-section view of the push-piece crown according to the invention in the final mounted position in the timepiece. The figure 5b shows the same view of the push-piece crown in the pressed position.
DESCRIPTION DÉTAILLÉE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

La présente invention se rapporte à une pièce d'horlogerie du type montre-bracelet. Il peut s'agir d'une montre électronique ou d'une montre mécanique.The present invention relates to a timepiece of the wristwatch type. It can be an electronic watch or a mechanical watch.

Se référant aux figures 1 et 2, la pièce d'horlogerie comporte de manière conventionnelle un boîtier 1 muni d'une carrure 2 et d'une couronne-poussoir 3 comportant une tête évidée 4 solidaire d'une tige 7 se déplaçant dans un tube 6 fixé à la carrure. Le tube 6 est traversé par la tige 7 connectée à la tête évidée 4. La tête évidée 4 est montée mobile en translation et en rotation respectivement le long et autour de l'axe 7a de la tige 7. Selon la variante représentée à la figure 2 pour une montre électronique, la tige 7 est solidaire à sa base d'un élément de retenue 8. Un aimant 9, par exemple un aimant multipolaire est fixé à l'extrémité distale de la tige 7 destiné à coopérer avec un ou plusieurs capteurs (non représenté). Pour une montre mécanique, la tige peut actionner une fonction telle qu'une fonction de chronographe.Referring to figures 1 and 2 , the timepiece conventionally comprises a case 1 provided with a middle part 2 and a push-piece crown 3 comprising a recessed head 4 integral with a rod 7 moving in a tube 6 fixed to the middle part. The tube 6 is crossed by the rod 7 connected to the recessed head 4. The recessed head 4 is mounted movable in translation and in rotation respectively along and around the axis 7a of the rod 7. According to the variant shown in figure 2 for an electronic watch, the rod 7 is integral at its base with a retaining element 8. A magnet 9, for example a multipolar magnet is fixed to the distal end of the rod 7 intended to cooperate with one or more sensors ( not shown). For a mechanical watch, the stem can actuate a function such as a chronograph function.

La couronne-poussoir 3 comporte en outre un ressort 10 disposé autour de la tige 7. Selon l'invention, le ressort 10 de rappel est monté en compression au sein d'une cage 11 visible plus en détail à la figure 3. La cage 11 est disposée entre le tube 6 et la tige 7. Elle prend appui à une extrémité axiale sur une face intérieure de la tête évidée 4 et à son autre extrémité axiale sur une assise 6a du tube 6 ou, de préférence, sur une rondelle 14 favorisant le glissement, la rondelle 14 étant disposée sur cette même assise 6a. La cage 11 est réalisée en deux parties supérieure 12 et inférieure 13 distinctes avec la partie supérieure 12 solidaire de la tête évidée 4. A cet effet, la partie supérieure 12 est fixée à un noyau 5 s'étendant partiellement autour de la tige 7 depuis la face intérieure de la tête évidée 4. Les deux parties supérieure 12 et inférieure 13 coopèrent ou, en d'autres mots, s'imbriquent l'une dans l'autre. La partie supérieure 12 de la cage est solidaire en rotation de la tête évidée 4, tandis que la partie inférieure 13 de la cage est libre axialement par rapport à la tête évidée mais entrainée en rotation par la partie supérieure de la cage lors de la rotation de la tête évidée. En outre, la partie supérieure 12 est montée sur la partie inférieure 13 de manière à pouvoir se déplacer en translation le long de l'axe 7a de la tige 7 lorsque la couronne-poussoir est enfoncée. Différentes configurations sont envisageables pour assurer la coopération en rotation des deux parties et le mouvement en translation de la partie supérieure par rapport à la partie inférieure. Selon la variante des figures 3 et 4a-4c décrite plus en détail ci-dessous, la partie supérieure 12 présente au moins une portion 12f imbriquée dans une ouverture 13b de la partie inférieure 13. A titre d'exemple, selon une autre variante non représentée, la partie supérieure peut présenter au moins une portion coulissant au sein d'une glissière ménagée sur une paroi intérieure de la partie inférieure.The push-piece crown 3 further comprises a spring 10 disposed around the rod 7. According to the invention, the return spring 10 is mounted in compression within a cage 11 visible in more detail at the bottom. figure 3 . The cage 11 is disposed between the tube 6 and the rod 7. It bears at one axial end on an inner face of the recessed 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 placed on this same seat 6a. The cage 11 is made in two separate upper 12 and lower 13 parts with the upper part 12 integral with the recessed head 4. For this purpose, 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 into one another. The upper part 12 of the cage is integral in rotation with the recessed head 4, while the lower part 13 of the cage is free axially with respect to the recessed head but driven in rotation by the upper part of the cage during the rotation. of the hollowed-out head. In addition, 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 stem 7 when the push-piece crown is pushed in. Different configurations are possible to ensure the cooperation in rotation of the two parts and the translational movement of the upper part relative to the lower part. Depending on the variant of figures 3 and 4a-4c described in more detail below, the upper part 12 has at least one portion 12f nested in an opening 13b of the lower part 13. By way of example, according to another variant not shown, the upper part may have at least one sliding portion within a slide provided on an inner wall of the lower part.

Se référant à la variante des figures 3 et 4a-4c, chaque partie 12,13 a une forme cylindrique avec une paroi latérale 12a,13a pourvue d'au moins une ouverture 12b,13b et de préférence de deux ouvertures, voire de trois, quatre, etc. ouvertures. La paroi latérale 12a,13a est délimitée à une extrémité par une base 12c,13c percée d'un trou central et à l'autre extrémité par une base 12d,13d complètement ouverte. Les ouvertures 12b, 13b découpées dans la paroi latérale 12a,13a définissent les contours d'un U. Dans l'exemple illustré, les ouvertures au nombre de deux sont diamétralement opposées. Les ouvertures 12b,13b sont délimitées par des portions 12f,13f de la paroi latérale 12a,13a. La paroi latérale 12a,13a est ainsi formée de portions 12f,13f encadrées par les ouvertures 12b,13b. Selon l'invention, les deux parties 12,13 sont montées en sens inverse l'une par rapport à l'autre, coaxialement le long de la tige 7 et avec un déplacement angulaire de 90° l'une par rapport à l'autre. Ainsi, les bases ouvertes 12d,13d se font face et les portions 12f de la paroi latérale 12a de la partie supérieure 12 sont imbriquées dans les ouvertures 13b de la paroi latérale 13a de la partie inférieure 13 de manière, d'une part, à permettre le mouvement en translation de la partie supérieure par rapport à la partie inférieure et, d'autre part, de manière à ce que la partie supérieure en rotation puisse entraîner dans son mouvement la partie inférieure. En position déployée de la couronne-poussoir 3 telle que représentée aux figures 2, 3 et 5a, les portions 12f de la paroi latérale 12a de la partie supérieure 12 sont légèrement engagées dans les ouvertures 13b respectives de la partie inférieure 13. En position enfoncée de la couronne-poussoir 3 telle que représentée à la figure 5b, les portions 12f de la paroi latérale 12a s'engagent plus profondément dans les ouvertures 13b. La course maximale d représentée à la figure 5a est limitée par la face inférieure de la tête évidée 4 arrivant à buter contre les bords 6b du tube 6.Referring to the variant of figures 3 and 4a-4c , each part 12, 13 has a cylindrical shape with a side wall 12a, 13a provided with at least one opening 12b, 13b and preferably with 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 illustrated, 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. According to the invention, the two parts 12, 13 are mounted in the opposite direction relative to each other, coaxially along the rod 7 and with an angular displacement of 90 ° relative to each other . Thus, 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, 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 cause the lower part in its movement. In the deployed position of the push-piece crown 3 as shown in figures 2 , 3 and 5a , the portions 12f of the side wall 12a of the upper part 12 are slightly engaged in the respective openings 13b of the lower part 13. In the depressed position of the push-piece crown 3 as shown in FIG. figure 5b , portions 12f of the side wall 12a engage more deeply into the openings 13b. The maximum stroke d represented at figure 5a is limited by the underside of the recessed head 4 coming to abut against the edges 6b of the tube 6.

Le ressort 10 est logé dans la cage 11 entre les deux bases percées du trou central 12c,13c dans l'espace délimité par les parois latérales 12a,13a et le rebord 12e,13e des trous centraux. Cet agencement permet en utilisation de faire tourner le ressort avec la cage, ce qui évite son vieillissement prématuré causé par un mouvement relatif entre le ressort et un composant en rotation.The spring 10 is housed in the cage 11 between the two bases pierced with the central hole 12c, 13c in the space delimited by the side walls 12a, 13a and the flange 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 relative movement between the spring and a rotating component.

LÉGENDELEGEND

(1)(1)
BoîtierHousing
(2)(2)
CarrureBuild
(3)(3)
Couronne-poussoirPush crown
(4)(4)
Tête évidéeHollowed head
(5)(5)
NoyauCore
(6)(6)
Tube
a. Assise
b. BordTube
at. Seated
b. Edge
(7)(7)
Tige
a. AxeRod
at. Axis
(8)(8)
Elément de retenueRetaining element
(9)(9)
Aimant multipolaireMultipolar magnet
(10)(10)
Ressort de rappelSpring
(11)(11)
CageCage
(12)(12)
Partie supérieure de la cage
a. Paroi latérale
b. Ouverture
c. Base avec un trou central
d. Base ouverte
e. Rebord du trou central
f. Portion de la paroi latéraleUpper part of the cage
at. Side wall
b. Opening
vs. Base with a central hole
d. Open base
e. Rim of central hole
f. Sidewall portion
(13)(13)
Partie inférieure de la cage
a. Paroi latérale
b. Ouverture
c. Base avec un trou central
d. Base ouverte
e. Rebord du trou central
f. Portion de la paroi latéraleLower part of the cage
at. Side wall
b. Opening
vs. Base with a central hole
d. Open base
e. Rim of central hole
f. Sidewall portion
(14)(14)
RondelleWasher
(15)(15)
JointSeal
(16)(16)
CoiffeCap

Claims (13)

Couronne-poussoir (3) comprenant : - un tube (6) destiné à être fixé à un boîtier de montre (1), - une tête évidée (4) solidaire d'une tige (7) s'étendant dans sa partie évidée, la tige (7) définissant un axe (7a), ladite tête évidée (4) étant montée mobile en rotation et en translation respectivement autour et le long de l'axe (7a) de la tige (7), - un ressort de rappel (10) disposé autour de la tige (7),
la couronne-poussoir (3) étant caractérisée en ce qu'elle comporte une cage (11) abritant le ressort (10), ladite cage (11) étant traversée par la tige (7) et comportant une partie supérieure (12) solidaire de la tête évidée (4) et une partie inférieure (13) montée libre par rapport à la tête évidée (4), ladite partie supérieure (12) coopérant avec la partie inférieure (13) de manière à pouvoir entraîner dans son mouvement de rotation la partie inférieure (13) et de manière à pouvoir se déplacer en translation le long de l'axe (7a) par rapport à ladite partie inférieure (13), ledit ressort (10) étant monté en compression au sein de la cage (11) de manière à être entraîné en rotation avec ladite cage (11). Push-button crown (3) comprising: - a tube (6) intended to be fixed to a watch case (1), - a recessed head (4) integral with a rod (7) extending in its recessed part, the rod (7) defining an axis (7a), said recessed head (4) being mounted mobile in rotation and in translation respectively around and along the axis (7a) of the rod (7), - a return spring (10) arranged around the rod (7),
the pusher crown (3) being characterized in that it comprises a cage (11) housing the spring (10), said cage (11) being traversed by the rod (7) and comprising an upper part (12) integral with the recessed head (4) and a lower part (13) mounted free with respect to the recessed head (4), said upper part (12) cooperating with the lower part (13) so as to be able to drive in its rotational movement the lower part (13) and so as to be able to move in translation along the axis (7a) relative to said lower part (13), said spring (10) being mounted in compression within the cage (11) so as to be driven in rotation with said cage (11). Couronne-poussoir (3) selon la revendication 1, caractérisée en ce que la partie supérieure (12) et la partie inférieure (13) ont une même forme cylindrique avec une paroi latérale (12a,13a) pourvue d'au moins une ouverture (12b,13b), la paroi latérale (12a,13a) étant délimitée à une extrémité par une base percée d'un trou central (12c,13c) pour le passage de la tige (7) et à l'autre extrémité par une base complètement ouverte (12d,13d), la partie supérieure (12) et la partie inférieure (13) étant montées en sens inverse l'une par rapport à l'autre et coaxialement autour de la tige (7) avec une portion (12f) de la paroi latérale (12a) de la partie supérieure (12) s'imbriquant dans une ouverture (13b) de la paroi latérale (13a) de la partie inférieure (13).Push-crown (3) according to Claim 1, characterized in that the upper part (12) and the lower part (13) have the same cylindrical shape with a side wall (12a, 13a) provided with at least one opening ( 12b, 13b), the side wall (12a, 13a) being delimited at one end by a base pierced with a central hole (12c, 13c) for the passage of the rod (7) and at the other end by a base fully open (12d, 13d), the upper part (12) and the lower part (13) being mounted in the opposite direction to each other and coaxially around the rod (7) with a portion (12f) of the side wall (12a) of the upper part (12) fitting into an opening (13b) of the side wall (13a) of the lower part (13). Couronne-poussoir (3) selon la revendication 2, caractérisée en ce que l'ouverture (12b,13b) définit les contours d'un U.Push-button crown (3) according to Claim 2, characterized in that the opening (12b, 13b) defines the contours of a U. Couronne-poussoir (3) selon la revendication 2 ou 3, caractérisée en ce qu'il y a deux ouvertures (12b,13b) dans la partie supérieure (12) et dans la partie inférieure (13), les ouvertures (12b,13b) de chaque partie (12,13) étant diamétralement opposées par rapport à l'axe (7a) de la tige (7).Push crown (3) according to claim 2 or 3, characterized in that there are two openings (12b, 13b) in the upper part (12) and in the lower part (13), the openings (12b, 13b) ) of each part (12,13) being diametrically opposed with respect to the axis (7a) of the rod (7). Couronne-poussoir (3) selon l'une des revendications précédentes, caractérisée en ce que la cage (11) est fixée dans sa partie supérieure (12) à un noyau (5) s'étendant depuis la face intérieure de la tête évidée (4) et disposé autour de la tige (7).Push-button crown (3) according to one of the preceding claims, characterized in that the cage (11) is fixed in its upper part (12) to a core (5) extending from the inner face of the recessed head ( 4) and arranged around the rod (7). Couronne-poussoir (3) selon l'une des revendications précédentes, caractérisée en ce que la cage (11) prend appui à une extrémité axiale sur une face intérieure de la tête évidée (4) et à son autre extrémité axiale sur une assise (6a) du tube (6).Push-button crown (3) according to one of the preceding claims, characterized in that the cage (11) bears at one axial end on an inner face of the recessed head (4) and at its other axial end on a seat ( 6a) of the tube (6). Couronne-poussoir (3) selon la revendication précédente, caractérisée en ce que la face intérieure de la tête évidée (4) et l'assise (6a) ont respectivement une forme complémentaire à celle de la base percée du trou central (12c,13c) de la partie supérieure (12) et de la partie inférieure (13) dans la zone d'appui.Push-button crown (3) according to the preceding claim, characterized in that the inner face of the recessed head (4) and the seat (6a) respectively have a shape complementary to that of the base pierced with the central hole (12c, 13c ) of the upper part (12) and the lower part (13) in the bearing zone. Couronne-poussoir (3) selon la revendication 6, caractérisée en ce qu'elle comporte une rondelle (14) favorisant le glissement, ladite rondelle (14) étant disposée sur l'assise (6a) du tube (6).Push-button crown (3) according to Claim 6, characterized in that it comprises a washer (14) promoting sliding, said washer (14) being arranged on the seat (6a) of the tube (6). Couronne-poussoir (3) selon la revendication précédente, caractérisée en ce que la face intérieure de la tête évidée (4) et la rondelle (14) ont respectivement une forme complémentaire à celle de la base percée du trou central (12c,13c) de la partie supérieure (12) et de la partie inférieure (13) dans la zone d'appui.Push-button crown (3) according to the preceding claim, characterized in that the inner face of the recessed head (4) and the washer (14) respectively have a shape complementary to that of the base pierced with the central hole (12c, 13c) of the upper part (12) and the lower part (13) in the bearing zone. Couronne-poussoir (3) selon l'une des revendications 2 à 9, caractérisée en ce que le ressort (10) est logé dans la cage (11) entre les deux bases percées du trou central (12c,13c) dans l'espace délimité par les parois latérales (12a, 13a) et un rebord (12e, 13e) des trous centraux.Push-button crown (3) according to one of claims 2 to 9, characterized in that the spring (10) is housed in the cage (11) between the two bases pierced with the central hole (12c, 13c) in the space delimited by the side walls (12a, 13a) and a rim (12e, 13e) of the central holes. Couronne-poussoir (3) selon l'une des revendications 2 à 10, caractérisée en ce que la portion (12f) de la paroi latérale (12a) de la partie supérieure (12) est engagée partiellement dans l'ouverture (13b) de la partie inférieure (13) lorsque la tête évidée (4) est dans sa position la plus éloignée axialement du tube (6), la portion (12f) de la paroi latérale (12a) de la partie supérieure (12) étant engagée plus profondément dans l'ouverture (13b) de la partie inférieure (13) lorsque la tête évidée (4) est dans sa position la plus proche axialement du tube (6).Push-button crown (3) according to one of claims 2 to 10, characterized in that the portion (12f) of the side wall (12a) of the upper part (12) is partially engaged in the opening (13b) of the lower part (13) when the recessed head (4) is in its position furthest axially from the tube (6), the portion (12f) of the side wall (12a) of the upper part (12) being engaged more deeply in the opening (13b) of the lower part (13) when the recessed head (4) is in its position axially closest to the tube (6). Pièce d'horlogerie comprenant la couronne-poussoir (3) selon l'une des revendications précédentes.Timepiece comprising the push-piece crown (3) according to one of the preceding claims. Pièce d'horlogerie selon la revendication précédente, caractérisée en ce qu'il s'agit d'une montre électronique ou mécanique.Timepiece according to the preceding claim, characterized in that it is an electronic or mechanical watch.
EP19212451.9A 2019-11-29 2019-11-29 Push-crown for a timepiece Active EP3828641B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP19212451.9A EP3828641B1 (en) 2019-11-29 2019-11-29 Push-crown for a timepiece
US17/029,181 US11366428B2 (en) 2019-11-29 2020-09-23 Crown/pusher for timepieces
JP2020161732A JP7025500B2 (en) 2019-11-29 2020-09-28 Crown / pusher for timekeeper
CN202011356150.8A CN112882371B (en) 2019-11-29 2020-11-27 Crown and timepiece comprising such a crown

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19212451.9A EP3828641B1 (en) 2019-11-29 2019-11-29 Push-crown for a timepiece

Publications (2)

Publication Number Publication Date
EP3828641A1 true EP3828641A1 (en) 2021-06-02
EP3828641B1 EP3828641B1 (en) 2022-07-20

Family

ID=68732868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19212451.9A Active EP3828641B1 (en) 2019-11-29 2019-11-29 Push-crown for a timepiece

Country Status (4)

Country Link
US (1) US11366428B2 (en)
EP (1) EP3828641B1 (en)
JP (1) JP7025500B2 (en)
CN (1) CN112882371B (en)

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EP4006647B1 (en) * 2020-11-25 2023-05-10 Meco S.A. Push-crown for a timepiece

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Also Published As

Publication number Publication date
US11366428B2 (en) 2022-06-21
CN112882371B (en) 2022-05-03
JP7025500B2 (en) 2022-02-24
CN112882371A (en) 2021-06-01
EP3828641B1 (en) 2022-07-20
JP2021085875A (en) 2021-06-03
US20210165368A1 (en) 2021-06-03

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