EP4194966A1 - Lock intended for limiting the axial displacement of a moving part of a timepiece movement and timepiece movement comprising same - Google Patents

Lock intended for limiting the axial displacement of a moving part of a timepiece movement and timepiece movement comprising same Download PDF

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Publication number
EP4194966A1
EP4194966A1 EP21212894.6A EP21212894A EP4194966A1 EP 4194966 A1 EP4194966 A1 EP 4194966A1 EP 21212894 A EP21212894 A EP 21212894A EP 4194966 A1 EP4194966 A1 EP 4194966A1
Authority
EP
European Patent Office
Prior art keywords
lock
rod
mobile
head
intended
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
EP21212894.6A
Other languages
German (de)
French (fr)
Inventor
Julien Christan
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP21212894.6A priority Critical patent/EP4194966A1/en
Priority to JP2022144321A priority patent/JP7441909B2/en
Priority to US17/960,562 priority patent/US20230176523A1/en
Priority to KR1020220132597A priority patent/KR20230085836A/en
Priority to CN202211266827.8A priority patent/CN116243579A/en
Priority to CN202222725466.0U priority patent/CN218547266U/en
Publication of EP4194966A1 publication Critical patent/EP4194966A1/en
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
    • G04B33/00—Calibers
    • G04B33/16—Calibers with arrangements affording protection of the clockwork against damage as a consequence of a rupture of the mainspring
    • 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
    • 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
    • G04B19/06—Dials
    • G04B19/14—Fastening the dials to the clock or watch plates
    • 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
    • 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
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • 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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
    • G04B43/002—Component shock protection arrangements

Definitions

  • the invention relates to the field of horology, and relates more particularly to a latch intended to limit the axial displacement of a moving part of a watch movement.
  • the mobile is constituted by the hour wheel.
  • the movement in height that is to say the axial displacement, of a moving body, for example of a wheel
  • the movement in height is generally limited by the dial or by a structural element of the watch movement, such as a bridge or a plate.
  • the axial movement is generally limited by the dial, or else when the timepiece does not include a dial, for example in the case of a watch known as a “skeleton watch”, the axial movement of the hour wheel is limited by the minute bridge.
  • the invention solves the aforementioned drawbacks by proposing a solution making it possible to hold a mobile axially in a watch movement while facilitating any operation of withdrawing said mobile.
  • Another objective of the invention is to contribute to the control of the value of the limit of the authorized axial movement of the mobile.
  • the present invention relates to a latch intended to limit the axial movement of a moving part of a watch movement, said latch comprising a head arranged at the end of a rod extending along a longitudinal axis of revolution.
  • Said head extends radially with respect to the rod and comprises on a portion of its periphery, a radial projection intended to be arranged facing said mobile.
  • the head further comprises, at the junction with the stem, a support base by which the bolt is intended to rest against a structure of the watch movement.
  • the invention may also include one or more of the following characteristics, taken separately or in all technically possible combinations.
  • the base has a central extra thickness extending around the stem so as to make it possible to limit the bearing surface of said base on the structure of the watch movement.
  • the head comprises a relief adapted to cooperate with a tool so as to subject said head to a moment of force around the longitudinal axis of the rod.
  • the rod has an annular groove adjoining the head.
  • the rod comprises an annular boss.
  • the radial projection comprises a chamfer or a fillet intended to face the mobile.
  • the head comprises a flat surface parallel to the longitudinal axis of the stem, intended to be arranged to bear against a bearing surface of the structure of the watch movement.
  • the free end of the rod has a chamfer.
  • the present invention also relates to a watch movement comprising a mobile arranged on a structure of said watch movement, said structure comprising a housing in which a lock as described above is engaged.
  • the latch is engaged in the housing so that it can rotate around the longitudinal axis of the rod, between a position called the “release position”, in which the radial projection is set back from the mobile, and a position, called the “position blocking”, in which the radial projection is vis-à-vis the mobile.
  • the lock is configured so that, when it is arranged in the locking position, the radial projection is arranged at a distance from the mobile.
  • the structure comprises at least two housings distributed around the mobile, in each of which a lock is engaged.
  • FIG. 1 shows a lock 10 intended to limit the axial movement of a mobile 21 of a watch movement 20.
  • a mobile 21 can be constituted by an hour wheel, a date disc, a moon phase disc, etc.
  • the mobile 21 is arranged on a structure 22 of the watch movement 20 which comprises at least one housing 220 in which a lock 10 is intended to be engaged so as to be able to move in rotation, as can be seen in the cross-sectional view of the figure 4 .
  • the lock 10 comprises a head 11 arranged at the end of a rod 12 extending along a longitudinal axis of revolution.
  • the rod 12 is driven into the housing 220 of the structure 22 of the watch movement 20 and the head 11 is arranged in abutment against said structure 22.
  • the rod 12 has a shape of revolution so that it can be pivoted about its longitudinal axis, relative to the structure 22 of the watch movement 20, between a blocking position of the mobile 21 and a release position of the mobile 21 described in detail below.
  • the head 11 extends radially around the rod 12, and comprises on a portion of its periphery, a radial projection 110.
  • the radial projection 110 is intended to be arranged opposite the mobile 21, when the lock 10 occupies the blocking position, as shown in the figures 3 and 4 , so as to constitute a possible abutment.
  • the lock 10 is configured so that, when it is arranged in the locking position, the radial projection 110 is arranged at a distance from the mobile 21 so as not to generate friction during the rotation of the latter.
  • the lower surface 115 of the radial projection 110 is arranged a few tenths or hundredths of a millimeter from the mobile 21.
  • the latch 10 is configured so that, when it occupies the released position, the radial projection 110 is set back from the mobile 21 so as not to constitute an obstacle during any axial displacement of the latter.
  • the head 11 further comprises, at the junction with the rod 12, a support base 111 by which the lock 10 is intended to rest against the structure 22 of the watch movement 20. As visible on the figure 1 And 4 , the radial projection 110 extends radially beyond the base 111.
  • the base 111 can advantageously have a central extra thickness 112 extending around the rod 12.
  • the extra thickness 12 is intended to constitute an axial bearing of the lock 10 by which it bears against the structure 22 of the watch movement 20.
  • the extra thickness 112 has a substantially cylindrical shape of revolution whose axis coincides with the longitudinal axis of the rod 12 and comprises a cross section whose radial dimension is reduced compared to that of the base 111 so as to limit the bearing surface of said base 111 on structure 22 of watch movement 20.
  • the extra thickness 112 thus makes it possible to reduce the friction during the pivoting of the lock 10 in order to facilitate the driving in rotation of the lock 10.
  • the additional thickness 112 also has the advantage of avoiding damage to the structure 22 of the watch movement 20 during the rotation of the lock 10, insofar as it avoids any contact between said structure 22 and a possible edge or a possible sharp angle of the head 11 during the movement of the lock 10.
  • the head 11 may include a relief 13 adapted to cooperate with a tool so as to subject said head 11 to a moment of force around the longitudinal axis of the rod 12.
  • the relief 13 is formed by a groove intended to cooperate with a blade of a flat screwdriver.
  • the relief 13 is formed on an upper surface 114 of the head 11, opposite a lower surface 115 intended to be oriented towards the structure 22 of the watch movement 20.
  • the radial projection 110 extends radially as far as a free end and comprises, between said free end and a surface corresponding to the lower surface 115 of the head 11, a chamfer or a fillet 113 intended to be arranged facing each other. mobile screw 21 when the lock 10 is in the locking position. This characteristic makes it possible to eliminate any edge or sharp angle liable to damage the mobile 21 when the lock 10 is driven in rotation between the locking and disengaging positions.
  • the head 11 may include at least one flat surface 116 parallel to the longitudinal axis of the rod 12, intended to be arranged to bear against a bearing surface (not shown in the figures) of the structure 22 when said lock 10 occupies the release position or the blocking position.
  • the head 11 comprises two opposite parallel planar surfaces 116 constituting the lateral flanks of said head 11.
  • the release position or the blocking position can correspond to one or the other of two positions angular reached by pivoting the latch 10 in one direction of rotation or the other until one or the other of the flat surfaces 116 comes into abutment against a bearing surface of the structure 22 of the watch movement 20 provided for this purpose.
  • the rod 12 preferentially and advantageously comprises an annular groove 120 adjoining the head 11.
  • This groove 120 makes it possible to accommodate any burrs in the structure 22 of the watch movement 20 or any shavings of material generated during the engagement of the rod 12 in structure 22 of watch movement 20.
  • the rod 12 advantageously comprises an annular boss 121.
  • a boss 121 makes it possible to reduce the force necessary for driving in the rod 12 so as to eliminate any risk of deformation of the structure 22 of the watch movement 20 during the driving in of the rod 12.
  • this characteristic has the advantage of reduce the moment of force necessary to drive the lock 10 in rotation, which makes it possible to avoid the risk of shearing the head 11 of the lock 10 during its rotation between its locking and releasing positions.
  • the free end of the rod 12 may include a chamfer 122 in order to facilitate the engagement of said rod 12 in the housing 220 of the structure 22 of the watch movement 20, with a view to positioning the said lock 10 for its driving out. .
  • the portion of the rod 12 between its free end and the boss 121 also makes it possible, due to its reduced cross-section compared to that of said boss 121, to guide the introduction of said rod 12 into the housing 220 before driving out said lock 10.
  • the structure 22 of the watch movement 20 comprises several housings 220 distributed around the mobile 21, so that the watch movement 20 comprises several locks 10 respectively housed in said housings 220 and adapted to limit the axial displacement of said mobile 21.
  • the watch movement 20 comprises three latches 10 distributed around the mobile 21, for example consisting of an hour wheel.
  • One of the advantages of the present invention is to make it possible to supply watch movements with the hour wheel assembled, which avoids the customer of said watch movements having to carry out the assembly himself of said hour wheels in the watch movements.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Machine Tool Units (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

L'invention concerne un verrou (10) destiné à limiter le débattement axial d'un mobile (21) d'un mouvement horloger (20), ledit verrou (10) étant caractérisé en ce qu'il comporte une tête (11) agencée à l'extrémité d'une tige (12) s'étendant selon un axe longitudinal de révolution, ladite tête (11) s'étendant radialement par rapport à la tige (12) et comportant sur une portion de sa périphérie, une saillie radiale (110) destinée à être agencée en vis-à-vis dudit mobile (21), et comportant, à l'interface avec la tige (12), une embase (111) d'appui par laquelle le verrou (10) est destiné à reposer contre une structure (22) du mouvement horloger (20).The invention relates to a latch (10) intended to limit the axial movement of a mobile (21) of a watch movement (20), said latch (10) being characterized in that it comprises a head (11) arranged at the end of a rod (12) extending along a longitudinal axis of revolution, said head (11) extending radially with respect to the rod (12) and comprising on a portion of its periphery, a radial projection (110) intended to be arranged opposite said mobile (21), and comprising, at the interface with the rod (12), a support base (111) through which the lock (10) is intended to rest against a structure (22) of the watch movement (20).

Description

Domaine technique de l'inventionTechnical field of the invention

L'invention relève du domaine de l'horlogerie, et concerne plus particulièrement un verrou destiné à limiter le débattement axial d'un mobile d'un mouvement horloger.The invention relates to the field of horology, and relates more particularly to a latch intended to limit the axial displacement of a moving part of a watch movement.

Dans une application particulièrement avantageuse de la présente invention, le mobile est constitué par la roue des heures.In a particularly advantageous application of the present invention, the mobile is constituted by the hour wheel.

Arrière-plan technologiqueTechnology background

Dans un mouvement horloger d'une pièce d'horlogerie, l'ébat en hauteur, c'est-à-dire le débattement axial, d'un mobile, par exemple d'une roue, est généralement limité par le cadran ou par un élément de structure du mouvement horloger, tel qu'un pont ou une platine.In a horological movement of a timepiece, the movement in height, that is to say the axial displacement, of a moving body, for example of a wheel, is generally limited by the dial or by a structural element of the watch movement, such as a bridge or a plate.

Plus particulièrement, dans le cas d'un mobile constitué par la roue des heures, le débattement axial est généralement limité par le cadran, ou bien lorsque la pièce d'horlogerie ne comporte pas de cadran, par exemple dans le cas d'une montre dite « montre-squelette », le débattement axial de la roue des heures est limité par le pont de minuterie.More particularly, in the case of a mobile consisting of the hour wheel, the axial movement is generally limited by the dial, or else when the timepiece does not include a dial, for example in the case of a watch known as a “skeleton watch”, the axial movement of the hour wheel is limited by the minute bridge.

Bien qu'elles donnent globalement satisfaction pour constituer des butées axiales du mobile, ces solutions obligent de réaliser des manipulations relativement longues et fastidieuses pour retirer le mobile du mouvement horloger, par exemple lors d'opérations de maintenance. En effet, il est alors nécessaire, dans un premier temps, d'ôter le cadran ou l'élément de structure pour pouvoir retirer ledit mobile par la suite.Although they are generally satisfactory for forming axial abutments of the mobile, these solutions make it necessary to carry out relatively long and tedious manipulations to remove the mobile from the watch movement, for example during maintenance operations. Indeed, it is then necessary, initially, to remove the dial or the structural element in order to be able to remove said mobile subsequently.

En outre, ces solutions peuvent générer des difficultés dans la maitrise des jeux mécaniques, et plus particulièrement la maitrise de la valeur de la limite du débattement axial autorisé du mobile, du fait d'éventuelles incertitudes dimensionnelles ou d'éventuelles déformations du cadran ou de l'élément de structure.In addition, these solutions can generate difficulties in the control of mechanical games, and more particularly the control of the value the limit of the authorized axial displacement of the mobile, due to any dimensional uncertainties or any deformations of the dial or of the structural element.

Résumé de l'inventionSummary of the invention

L'invention résout les inconvénients précités en proposant une solution permettant de maintenir axialement un mobile dans un mouvement horloger tout en facilitant une éventuelle opération de retrait dudit mobile.The invention solves the aforementioned drawbacks by proposing a solution making it possible to hold a mobile axially in a watch movement while facilitating any operation of withdrawing said mobile.

Un autre objectif de l'invention est de contribuer à la maitrise de la valeur de la limite du débattement axial autorisé du mobile.Another objective of the invention is to contribute to the control of the value of the limit of the authorized axial movement of the mobile.

À cet effet, la présente invention concerne un verrou destiné à limiter le débattement axial d'un mobile d'un mouvement horloger, ledit verrou comportant une tête agencée à l'extrémité d'une tige s'étendant selon un axe longitudinal de révolution.To this end, the present invention relates to a latch intended to limit the axial movement of a moving part of a watch movement, said latch comprising a head arranged at the end of a rod extending along a longitudinal axis of revolution.

Ladite tête s'étend radialement par rapport à la tige et comporte sur une portion de sa périphérie, une saillie radiale destinée à être agencée en vis-à-vis dudit mobile. La tête comporte en outre, à la jonction avec la tige, une embase d'appui par laquelle le verrou est destiné à reposer contre une structure du mouvement horloger.Said head extends radially with respect to the rod and comprises on a portion of its periphery, a radial projection intended to be arranged facing said mobile. The head further comprises, at the junction with the stem, a support base by which the bolt is intended to rest against a structure of the watch movement.

Dans des modes particuliers de réalisation, l'invention peut comporter en outre l'une ou plusieurs des caractéristiques suivantes, prises isolément ou selon toutes les combinaisons techniquement possibles.In particular embodiments, the invention may also include one or more of the following characteristics, taken separately or in all technically possible combinations.

Dans des modes particuliers de réalisation, l'embase présente une surépaisseur centrale s'étendant autour de la tige de sorte à permettre de limiter la surface d'appui de ladite embase sur la structure du mouvement horloger.In particular embodiments, the base has a central extra thickness extending around the stem so as to make it possible to limit the bearing surface of said base on the structure of the watch movement.

Dans des modes particuliers de réalisation, la tête comporte un relief adapté à coopérer avec un outil de sorte à soumettre ladite tête à un moment de force autour de l'axe longitudinal de la tige.In particular embodiments, the head comprises a relief adapted to cooperate with a tool so as to subject said head to a moment of force around the longitudinal axis of the rod.

Dans des modes particuliers de réalisation, la tige comporte une gorge annulaire attenant à la tête.In particular embodiments, the rod has an annular groove adjoining the head.

Dans des modes particuliers de réalisation, la tige comporte un bossage annulaire.In particular embodiments, the rod comprises an annular boss.

Dans des modes particuliers de réalisation, la saillie radiale comporte un chanfrein ou un congé destiné à être en vis-à-vis du mobile.In particular embodiments, the radial projection comprises a chamfer or a fillet intended to face the mobile.

Dans des modes particuliers de réalisation, la tête comporte une surface plane parallèle à l'axe longitudinal de la tige, destinée à être agencée en appui contre une surface d'appui de la structure du mouvement horloger.In particular embodiments, the head comprises a flat surface parallel to the longitudinal axis of the stem, intended to be arranged to bear against a bearing surface of the structure of the watch movement.

Dans des modes particuliers de réalisation, l'extrémité libre de la tige comporte un chanfrein.In particular embodiments, the free end of the rod has a chamfer.

Selon un autre objet de la présente invention, la présente invention concerne également un mouvement horloger comprenant un mobile agencé sur une structure dudit mouvement horloger, ladite structure comprenant un logement dans lequel est engagé un verrou tel que décrit précédemment.According to another object of the present invention, the present invention also relates to a watch movement comprising a mobile arranged on a structure of said watch movement, said structure comprising a housing in which a lock as described above is engaged.

Le verrou est engagé dans le logement de manière mobile en rotation autour de l'axe longitudinal de la tige, entre une position dite « position de dégagement », dans laquelle la saillie radiale est en retrait du mobile, et une position, dite « position de blocage », dans laquelle la saillie radiale est en vis-à-vis du mobile.The latch is engaged in the housing so that it can rotate around the longitudinal axis of the rod, between a position called the “release position”, in which the radial projection is set back from the mobile, and a position, called the “position blocking”, in which the radial projection is vis-à-vis the mobile.

Dans des modes particuliers de réalisation, le verrou est configuré de sorte que, lorsqu'il est agencé en position de blocage, la saillie radiale est agencée à distance du mobile.In particular embodiments, the lock is configured so that, when it is arranged in the locking position, the radial projection is arranged at a distance from the mobile.

Dans des modes particuliers de réalisation, la structure comprend au moins deux logements répartis autour du mobile, dans chacun desquels est engagé un verrou.In particular embodiments, the structure comprises at least two housings distributed around the mobile, in each of which a lock is engaged.

Brève description des figuresBrief description of figures

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée suivante donnée à titre d'exemple nullement limitatif, en référence aux dessins annexés dans lesquels :

  • la figure 1 représente une vue en perspective de dessous d'un verrou selon un exemple préféré de réalisation de l'invention ;
  • la figure 2 représente une vue en perspective de dessus du verrou de la figure 1 ;
  • la figure 3 représente une vue de dessus d'une partie d'un mouvement horloger comportant un verrou selon la figure 1 ;
  • la figure 4 représente une vue en coupe transversale d'un verrou selon la figure 1 fixé à un mouvement horloger selon la figure 3.
Other characteristics and advantages of the invention will appear on reading the following detailed description given by way of non-limiting example, with reference to the appended drawings in which:
  • there figure 1 shows a perspective view from below of a lock according to a preferred embodiment of the invention;
  • there picture 2 shows a perspective view from above of the lock of the figure 1 ;
  • there picture 3 shows a top view of part of a watch movement comprising a lock according to the figure 1 ;
  • there figure 4 shows a cross-sectional view of a lock according to the figure 1 attached to a watch movement according to the picture 3 .

Description détaillée de l'inventionDetailed description of the invention

La figure 1 montre un verrou 10 destiné à limiter le débattement axial d'un mobile 21 d'un mouvement horloger 20. Un tel mobile 21 peut être constitué par une roue des heures, un disque de quantième, un disque de phase de lune, etc.There figure 1 shows a lock 10 intended to limit the axial movement of a mobile 21 of a watch movement 20. Such a mobile 21 can be constituted by an hour wheel, a date disc, a moon phase disc, etc.

Le mobile 21 est agencé sur une structure 22 du mouvement horloger 20 qui comprend au moins un logement 220 dans lequel un verrou 10 est destiné à être engagé de manière mobile en rotation, tel que visible sur la vue en coupe de la figure 4.The mobile 21 is arranged on a structure 22 of the watch movement 20 which comprises at least one housing 220 in which a lock 10 is intended to be engaged so as to be able to move in rotation, as can be seen in the cross-sectional view of the figure 4 .

Le verrou 10 comporte une tête 11 agencée à l'extrémité d'une tige 12 s'étendant selon un axe longitudinal de révolution. La tige 12 est chassée dans le logement 220 de la structure 22 du mouvement horloger 20 et la tête 11 est agencée en butée contre ladite structure 22.The lock 10 comprises a head 11 arranged at the end of a rod 12 extending along a longitudinal axis of revolution. The rod 12 is driven into the housing 220 of the structure 22 of the watch movement 20 and the head 11 is arranged in abutment against said structure 22.

La tige 12 présente une forme de révolution de sorte à pouvoir être pivotée autour de son axe longitudinal, par rapport à la structure 22 du mouvement horloger 20, entre une position de blocage du mobile 21 et une position de dégagement du mobile 21 décrites en détail ci-après.The rod 12 has a shape of revolution so that it can be pivoted about its longitudinal axis, relative to the structure 22 of the watch movement 20, between a blocking position of the mobile 21 and a release position of the mobile 21 described in detail below.

La tête 11 s'étend radialement autour de la tige 12, et comporte sur une portion de sa périphérie, une saillie radiale 110. La saillie radiale 110 est destinée à être agencée en vis-à-vis du mobile 21, lorsque le verrou 10 occupe la position de blocage, comme le montrent les figures 3 et 4, de sorte à constituer une éventuelle butée.The head 11 extends radially around the rod 12, and comprises on a portion of its periphery, a radial projection 110. The radial projection 110 is intended to be arranged opposite the mobile 21, when the lock 10 occupies the blocking position, as shown in the figures 3 and 4 , so as to constitute a possible abutment.

Plus particulièrement, comme le montre la figure 4, le verrou 10 est configuré de sorte que, lorsqu'il est agencé en position de blocage, la saillie radiale 110 est agencée à distance du mobile 21 de sorte à ne pas générer de friction lors de la rotation de ce dernier.More specifically, as shown in figure 4 , the lock 10 is configured so that, when it is arranged in the locking position, the radial projection 110 is arranged at a distance from the mobile 21 so as not to generate friction during the rotation of the latter.

A titre d'exemple non limitatif, lorsque le verrou 10 est en position de blocage, la surface inférieure 115 de la saillie radiale 110 est agencée à quelques dixièmes ou centièmes de millimètres du mobile 21.By way of non-limiting example, when the lock 10 is in the locking position, the lower surface 115 of the radial projection 110 is arranged a few tenths or hundredths of a millimeter from the mobile 21.

Le verrou 10 est configuré de sorte que, lorsqu'il occupe la position de dégagement, la saillie radiale 110 est en retrait du mobile 21 de sorte à ne pas constituer un obstacle lors d'un éventuel déplacement axial de ce dernier.The latch 10 is configured so that, when it occupies the released position, the radial projection 110 is set back from the mobile 21 so as not to constitute an obstacle during any axial displacement of the latter.

La tête 11 comporte en outre, à la jonction avec la tige 12, une embase 111 d'appui par laquelle le verrou 10 est destiné à reposer contre la structure 22 du mouvement horloger 20. Comme visible sur les figures 1 et 4, la saillie radiale 110 s'étend radialement au-delà de l'embase 111.The head 11 further comprises, at the junction with the rod 12, a support base 111 by which the lock 10 is intended to rest against the structure 22 of the watch movement 20. As visible on the figure 1 And 4 , the radial projection 110 extends radially beyond the base 111.

Comme le montre en particulier la figure 1, l'embase 111 peut avantageusement présenter une surépaisseur 112 centrale s'étendant autour de la tige 12. La surépaisseur 12 est destinée à constituer une portée axiale du verrou 10 par laquelle il est en appui contre la structure 22 du mouvement horloger 20.As shown in particular by the figure 1 , the base 111 can advantageously have a central extra thickness 112 extending around the rod 12. The extra thickness 12 is intended to constitute an axial bearing of the lock 10 by which it bears against the structure 22 of the watch movement 20.

La surépaisseur 112 présente une forme sensiblement cylindrique de révolution dont l'axe est confondu avec l'axe longitudinal de la tige 12 et comprend une section transversale dont la dimension radiale est réduite par rapport à celle de l'embase 111 de sorte à limiter la surface d'appui de ladite embase 111 sur la structure 22 du mouvement horloger 20. La surépaisseur 112 permet ainsi de réduire les frottements lors du pivotement du verrou 10 pour faciliter l'entraînement en rotation du verrou 10. La surépaisseur 112 présente également l'avantage d'éviter d'endommager la structure 22 du mouvement horloger 20 lors de la rotation du verrou 10, dans la mesure où elle évite tout contact entre ladite structure 22 et une éventuelle arrête ou un éventuel angle vif de la tête 11 lors du déplacement du verrou 10.The extra thickness 112 has a substantially cylindrical shape of revolution whose axis coincides with the longitudinal axis of the rod 12 and comprises a cross section whose radial dimension is reduced compared to that of the base 111 so as to limit the bearing surface of said base 111 on structure 22 of watch movement 20. The extra thickness 112 thus makes it possible to reduce the friction during the pivoting of the lock 10 in order to facilitate the driving in rotation of the lock 10. The additional thickness 112 also has the advantage of avoiding damage to the structure 22 of the watch movement 20 during the rotation of the lock 10, insofar as it avoids any contact between said structure 22 and a possible edge or a possible sharp angle of the head 11 during the movement of the lock 10.

Pour pouvoir être entraînée en rotation, la tête 11 peut comporter un relief 13 adapté à coopérer avec un outil de sorte à soumettre ladite tête 11 à un moment de force autour de l'axe longitudinal de la tige 12.To be able to be driven in rotation, the head 11 may include a relief 13 adapted to cooperate with a tool so as to subject said head 11 to a moment of force around the longitudinal axis of the rod 12.

Dans l'exemple préféré de réalisation représenté sur les figures 1 à 4, le relief 13 est formé par une rainure destinée à coopérer avec une lame d'un tournevis plat. Le relief 13 est formé sur une surface supérieure 114 de la tête 11, opposée à une surface inférieure 115 destinée à être orientée vers la structure 22 du mouvement horloger 20.In the preferred embodiment shown in the figures 1 to 4 , the relief 13 is formed by a groove intended to cooperate with a blade of a flat screwdriver. The relief 13 is formed on an upper surface 114 of the head 11, opposite a lower surface 115 intended to be oriented towards the structure 22 of the watch movement 20.

La saillie radiale 110 s'étend radialement jusqu'à une extrémité libre et comporte, entre ladite extrémité libre et une surface correspondant à la surface inférieure 115 de la tête 11, un chanfrein ou un congé 113 destiné à être agencé en vis-à-vis du mobile 21 lorsque le verrou 10 est en position de blocage. Cette caractéristique permet d'éliminer toute arrête ou angle vif susceptible d'endommager le mobile 21 lorsque le verrou 10 est entraîné en rotation entre les positions de blocage et de dégagement.The radial projection 110 extends radially as far as a free end and comprises, between said free end and a surface corresponding to the lower surface 115 of the head 11, a chamfer or a fillet 113 intended to be arranged facing each other. mobile screw 21 when the lock 10 is in the locking position. This characteristic makes it possible to eliminate any edge or sharp angle liable to damage the mobile 21 when the lock 10 is driven in rotation between the locking and disengaging positions.

Avantageusement, la tête 11 peut comporter au moins une surface plane 116 parallèle à l'axe longitudinal de la tige 12, destinée à être agencée en appui contre une surface d'appui (non représentée sur les figures) de la structure 22 lorsque ledit verrou 10 occupe la position de dégagement ou la position de blocage.Advantageously, the head 11 may include at least one flat surface 116 parallel to the longitudinal axis of the rod 12, intended to be arranged to bear against a bearing surface (not shown in the figures) of the structure 22 when said lock 10 occupies the release position or the blocking position.

Préférentiellement, comme illustré sur les figures 1 à 4, la tête 11 comporte deux surfaces planes 116 parallèles opposées constituant des flancs latéraux de ladite tête 11. Ainsi, la position de dégagement ou la position de blocage peut correspondre à l'une ou l'autre de deux positions angulaires atteintes en pivotant le verrou 10 dans un sens de rotation ou dans l'autre jusqu'à ce que l'une ou l'autre des surface planes 116 arrive en butée contre une surface d'appui de la structure 22 du mouvement horloger 20 prévue à cet effet.Preferably, as illustrated in the figures 1 to 4 , the head 11 comprises two opposite parallel planar surfaces 116 constituting the lateral flanks of said head 11. Thus, the release position or the blocking position can correspond to one or the other of two positions angular reached by pivoting the latch 10 in one direction of rotation or the other until one or the other of the flat surfaces 116 comes into abutment against a bearing surface of the structure 22 of the watch movement 20 provided for this purpose.

La tige 12 comporte préférentiellement et avantageusement une gorge 120 annulaire attenante à la tête 11. Cette gorge 120 permet de loger d'éventuelles bavures de la structure 22 du mouvement horloger 20 ou d'éventuels copeaux de matière générés lors de l'engagement de la tige 12 dans la structure 22 du mouvement horloger 20.The rod 12 preferentially and advantageously comprises an annular groove 120 adjoining the head 11. This groove 120 makes it possible to accommodate any burrs in the structure 22 of the watch movement 20 or any shavings of material generated during the engagement of the rod 12 in structure 22 of watch movement 20.

Par ailleurs, comme représenté sur les figures 1, 2 et 4, la tige 12 comporte avantageusement un bossage 121 annulaire. Un tel bossage 121 permet de réduire la force nécessaire pour le chassage de la tige 12 de sorte à écarter tout risque de déformation de la structure 22 du mouvement horloger 20 lors du chassage de la tige 12. Par ailleurs, cette caractéristique a pour avantage de diminuer le moment de force nécessaire pour entraîner le verrou 10 en rotation, ce qui permet d'éviter le risque de cisailler la tête 11 de verrou 10 lors de sa rotation entre ses positions de blocage et de dégagement.Furthermore, as shown in the figures 1, 2 And 4 , the rod 12 advantageously comprises an annular boss 121. Such a boss 121 makes it possible to reduce the force necessary for driving in the rod 12 so as to eliminate any risk of deformation of the structure 22 of the watch movement 20 during the driving in of the rod 12. Moreover, this characteristic has the advantage of reduce the moment of force necessary to drive the lock 10 in rotation, which makes it possible to avoid the risk of shearing the head 11 of the lock 10 during its rotation between its locking and releasing positions.

Avantageusement, l'extrémité libre de la tige 12 peut comporter un chanfrein 122 afin de permettre de faciliter l'engagement de ladite tige 12 dans le logement 220 de la structure 22 du mouvement horloger 20, en vue de positionner ledit verrou 10 pour son chassage.Advantageously, the free end of the rod 12 may include a chamfer 122 in order to facilitate the engagement of said rod 12 in the housing 220 of the structure 22 of the watch movement 20, with a view to positioning the said lock 10 for its driving out. .

Par ailleurs, la portion de la tige 12 comprise entre son extrémité libre et le bossage 121 permet également, du fait de sa section réduite par rapport à celle dudit bossage 121, de guider l'introduction de ladite tige 12 au sein du logement 220 avant le chassage dudit verrou 10.Furthermore, the portion of the rod 12 between its free end and the boss 121 also makes it possible, due to its reduced cross-section compared to that of said boss 121, to guide the introduction of said rod 12 into the housing 220 before driving out said lock 10.

Préférentiellement, la structure 22 du mouvement horloger 20 comporte plusieurs logements 220 répartis autours du mobile 21, de sorte que le mouvement horloger 20 comprenne plusieurs verrous 10 respectivement logés dans lesdits logements 220 et adaptés à limiter le débattement axial dudit mobile 21.Preferably, the structure 22 of the watch movement 20 comprises several housings 220 distributed around the mobile 21, so that the watch movement 20 comprises several locks 10 respectively housed in said housings 220 and adapted to limit the axial displacement of said mobile 21.

Plus particulièrement, dans un exemple de réalisation non représenté sur les figures, le mouvement horloger 20 comporte trois verrous 10 répartis autour du mobile 21, par exemple constitué par une roue des heures.More particularly, in an exemplary embodiment not shown in the figures, the watch movement 20 comprises three latches 10 distributed around the mobile 21, for example consisting of an hour wheel.

Un des avantages de la présente invention est de permettre de fournir des mouvements horlogers avec la roue des heures assemblée, ce qui évite au client desdits mouvements horlogers de devoir réaliser le montage lui-même desdites roues des heures dans les mouvements horlogers.One of the advantages of the present invention is to make it possible to supply watch movements with the hour wheel assembled, which avoids the customer of said watch movements having to carry out the assembly himself of said hour wheels in the watch movements.

De manière plus générale, il est à noter que les modes de mise en œuvre et de réalisation considérés ci-dessus ont été décrits à titre d'exemples non limitatifs, et que d'autres variantes sont par conséquent envisageables.More generally, it should be noted that the modes of implementation and embodiment considered above have been described by way of non-limiting examples, and that other variants are therefore possible.

Claims (11)

Verrou (10) destiné à limiter le débattement axial d'un mobile (21) d'un mouvement horloger (20), ledit verrou (10) étant caractérisé en ce qu'il comporte une tête (11) agencée à l'extrémité d'une tige (12) s'étendant selon un axe longitudinal de révolution, ladite tête (11) s'étendant radialement par rapport à la tige (12) et comportant sur une portion de sa périphérie, une saillie radiale (110) destinée à être agencée en vis-à-vis dudit mobile (21), et comportant, à la jonction avec la tige (12), une embase (111) d'appui par laquelle le verrou (10) est destiné à reposer contre une structure (22) du mouvement horloger (20).Lock (10) intended to limit the axial movement of a mobile (21) of a watch movement (20), said lock (10) being characterized in that it comprises a head (11) arranged at the end of a rod (12) extending along a longitudinal axis of revolution, said head (11) extending radially with respect to the rod (12) and comprising on a portion of its periphery, a radial projection (110) intended to be arranged opposite said mobile (21), and comprising, at the junction with the rod (12), a support base (111) by which the lock (10) is intended to rest against a structure ( 22) of the watch movement (20). Verrou (10) selon la revendication 1, dans lequel l'embase (111) présente une surépaisseur (112) centrale s'étendant autour de la tige (12) de sorte à permettre de limiter la surface d'appui de ladite embase (111) sur la structure (22) du mouvement horloger (20).Lock (10) according to Claim 1, in which the base (111) has a central extra thickness (112) extending around the rod (12) so as to make it possible to limit the bearing surface of the said base (111 ) on the structure (22) of the watch movement (20). Verrou (10) selon l'une des revendications 1 ou 2, dans lequel la tête (11) comporte un relief (13) adapté à coopérer avec un outil de sorte à soumettre ladite tête (11) à un moment de force autour de l'axe longitudinal de la tige (12).Lock (10) according to one of Claims 1 or 2, in which the head (11) comprises a relief (13) adapted to cooperate with a tool so as to subject the said head (11) to a moment of force around the longitudinal axis of the rod (12). Verrou (10) selon l'une des revendications 1 à 3, dans lequel la tige (12) comporte une gorge (120) annulaire attenant à la tête (11).Lock (10) according to one of Claims 1 to 3, in which the rod (12) has an annular groove (120) adjoining the head (11). Verrou (10) selon l'une des revendications 1 à 4, dans lequel la tige (12) comporte un bossage (121) annulaire.Lock (10) according to one of Claims 1 to 4, in which the rod (12) comprises an annular boss (121). Verrou (10) selon l'une des revendications 1 à 5, dans lequel la saillie radiale (110) comporte un chanfrein ou un congé (113) destiné à être en vis-à-vis du mobile (21).Lock (10) according to one of Claims 1 to 5, in which the radial projection (110) comprises a chamfer or a fillet (113) intended to face the mobile (21). Verrou (10) selon l'une des revendications 1 à 6, dans lequel la tête (11) comporte une surface plane (116) parallèle à l'axe longitudinal de la tige (12), destinée à être agencée en appui contre une surface d'appui de la structure (22) du mouvement horloger (20).Lock (10) according to one of Claims 1 to 6, in which the head (11) comprises a flat surface (116) parallel to the longitudinal axis of the rod (12), intended to be arranged to bear against a surface support of the structure (22) of the watch movement (20). Verrou (10) selon l'une des revendications 1 à 7, dans lequel l'extrémité libre de la tige (12) comporte un chanfrein (122).Lock (10) according to one of Claims 1 to 7, in which the free end of the rod (12) has a chamfer (122). Mouvement horloger (20) comprenant un mobile (21) agencé sur une structure (22) du mouvement horloger (20), ladite structure (22) comprenant un logement (220) dans lequel est engagé un verrou (10) selon l'une des revendications 1 à 8, de manière mobile en rotation autour de l'axe longitudinal de la tige (12), entre une position dite « position de dégagement », dans laquelle la saillie radiale (110) est en retrait du mobile (21), et une position, dite « position de blocage », dans laquelle la saillie radiale (110) est en vis-à-vis du mobile (21).Watch movement (20) comprising a mobile (21) arranged on a structure (22) of the watch movement (20), said structure (22) comprising a housing (220) in which is engaged a lock (10) according to one of claims 1 to 8, rotatably around the longitudinal axis of the rod (12), between a so-called "release position", in which the radial projection (110) is set back from the mobile (21), and a position, called "blocking position", in which the radial projection (110) is opposite the mobile (21). Mouvement horloger (20) selon la revendication 9, dans lequel le verrou (10) est configuré de sorte que, lorsqu'il est agencé en position de blocage, la saillie radiale (110) est agencée à distance du mobile (21).Timepiece movement (20) according to Claim 9, in which the latch (10) is configured so that, when it is arranged in the locking position, the radial projection (110) is arranged at a distance from the mobile (21). Mouvement horloger (10) selon l'une des revendications 9 ou 10, dans lequel la structure (22) comprend au moins deux logements (220) répartis autour du mobile (21), dans chacun desquels est engagé un verrou (10).Timepiece movement (10) according to one of Claims 9 or 10, in which the structure (22) comprises at least two housings (220) distributed around the mobile (21), in each of which a lock (10) is engaged.
EP21212894.6A 2021-12-07 2021-12-07 Lock intended for limiting the axial displacement of a moving part of a timepiece movement and timepiece movement comprising same Pending EP4194966A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP21212894.6A EP4194966A1 (en) 2021-12-07 2021-12-07 Lock intended for limiting the axial displacement of a moving part of a timepiece movement and timepiece movement comprising same
JP2022144321A JP7441909B2 (en) 2021-12-07 2022-09-12 A bolt intended to limit the axial travel of a movable body of a timekeeping movement, and a timekeeping movement comprising such a bolt.
US17/960,562 US20230176523A1 (en) 2021-12-07 2022-10-05 Bolt intended to limit the axial travel of a moving body of a horological movement and horological movement including the same
KR1020220132597A KR20230085836A (en) 2021-12-07 2022-10-14 Bolt intended to limit the axial travel of a moving body of a horological movement and horological movement including the same
CN202211266827.8A CN116243579A (en) 2021-12-07 2022-10-17 Stop pin and timepiece movement including the same
CN202222725466.0U CN218547266U (en) 2021-12-07 2022-10-17 Stop pin and timepiece movement including a stop pin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP21212894.6A EP4194966A1 (en) 2021-12-07 2021-12-07 Lock intended for limiting the axial displacement of a moving part of a timepiece movement and timepiece movement comprising same

Publications (1)

Publication Number Publication Date
EP4194966A1 true EP4194966A1 (en) 2023-06-14

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Application Number Title Priority Date Filing Date
EP21212894.6A Pending EP4194966A1 (en) 2021-12-07 2021-12-07 Lock intended for limiting the axial displacement of a moving part of a timepiece movement and timepiece movement comprising same

Country Status (5)

Country Link
US (1) US20230176523A1 (en)
EP (1) EP4194966A1 (en)
JP (1) JP7441909B2 (en)
KR (1) KR20230085836A (en)
CN (2) CN218547266U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS529356A (en) * 1975-07-11 1977-01-24 Nippon Telegr & Teleph Corp <Ntt> Flipflop circuit
EP3070345A1 (en) * 2015-03-17 2016-09-21 Rolex Sa Timepiece rivet
CH716943A2 (en) * 2019-12-03 2021-06-15 Eta Sa Mft Horlogere Suisse Device for fixing a display element or a timepiece covering.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5719667Y2 (en) * 1976-01-16 1982-04-26
EP3832396B1 (en) * 2019-12-03 2024-01-24 ETA SA Manufacture Horlogère Suisse Device for attaching a timepiece display or trim element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS529356A (en) * 1975-07-11 1977-01-24 Nippon Telegr & Teleph Corp <Ntt> Flipflop circuit
EP3070345A1 (en) * 2015-03-17 2016-09-21 Rolex Sa Timepiece rivet
CH716943A2 (en) * 2019-12-03 2021-06-15 Eta Sa Mft Horlogere Suisse Device for fixing a display element or a timepiece covering.

Also Published As

Publication number Publication date
CN116243579A (en) 2023-06-09
US20230176523A1 (en) 2023-06-08
KR20230085836A (en) 2023-06-14
CN218547266U (en) 2023-02-28
JP2023084656A (en) 2023-06-19
JP7441909B2 (en) 2024-03-01

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