EP2570862B1 - Clock barrel assembly with reduced core diameter - Google Patents

Clock barrel assembly with reduced core diameter Download PDF

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Publication number
EP2570862B1
EP2570862B1 EP11181352.3A EP11181352A EP2570862B1 EP 2570862 B1 EP2570862 B1 EP 2570862B1 EP 11181352 A EP11181352 A EP 11181352A EP 2570862 B1 EP2570862 B1 EP 2570862B1
Authority
EP
European Patent Office
Prior art keywords
spring
drum
barrel assembly
core
barrel
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
EP11181352.3A
Other languages
German (de)
French (fr)
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EP2570862A1 (en
Inventor
Laurent Kaelin
Baptist Wyssbrod
Arthur Queval
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
Priority to EP11181352.3A priority Critical patent/EP2570862B1/en
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to IN2738CHN2014 priority patent/IN2014CN02738A/en
Priority to US14/240,975 priority patent/US9033573B2/en
Priority to RU2014114788/28A priority patent/RU2559125C1/en
Priority to EP12759423.2A priority patent/EP2756360B1/en
Priority to JP2014530208A priority patent/JP5702509B2/en
Priority to CN201280045269.0A priority patent/CN103797425B/en
Priority to PCT/EP2012/067913 priority patent/WO2013037870A1/en
Publication of EP2570862A1 publication Critical patent/EP2570862A1/en
Application granted granted Critical
Publication of EP2570862B1 publication Critical patent/EP2570862B1/en
Priority to HK14111175.8A priority patent/HK1197840A1/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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • G04B1/165—Spring cylinder with friction transmission to the gearing (especially for Roskopf clockworks)
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/14—Mainsprings; Bridles therefor
    • G04B1/145—Composition and manufacture of the springs
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor

Definitions

  • the invention relates to a watch-barrel assembly, comprising at least one barrel-drive spring mounted between, at one end, a barrel drum, and at a second end a receiving surface that comprises a barrel plug coaxial with said drum around of a pivot axis.
  • the invention also relates to a watch movement comprising at least one such barrel assembly.
  • the invention also relates to a timepiece comprising at least one such movement and / or at least one such barrel assembly.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • one solution consists of a decrease in the diameter of the barrel shaft and the associated bung, so as to increase the space available in the drum. for the spring.
  • the ratio of the bead radius to the thickness of the spring is usually between 10 and 20, and the invention proposes to lower this ratio below 10, and preferably in the range between 5 and 10.
  • a ratchet is mounted axially on a barrel axis or on a bung, via a square, the ratchet being generally fixed by an axial screw.
  • the size of this screw and that of the square thus condition a minimum diameter of a pivoting surface.
  • a shoulder abutting with this pivoting surface limits axial fretting of the shaft or the bung relative to a plate or bridge carrying a stone or the like.
  • a diameter even greater than that of this shoulder is necessary for a pivoting guide surface of the drum on the shaft or on the bung, combined with a shoulder limiting axial fretting of the drum.
  • the respect of minimal sections of matter implies a quotation chain which results in a large size, difficult to reduce. In particular, it is not enough to reduce all the sizing, because the sections of material are then insufficient to ensure fatigue resistance.
  • the document CH 319 631 in the name of FELSA SA describes a double barrel, and how is limited the frolicking of each of the drums.
  • the frog of a lower drum is limited on the upper side by a flange of a sleeve, which is pushed towards a shoulder of the barrel shaft, by a nut screwed on the same shaft; and, on the lower side, by a bottom of a bung integral in pivoting of the barrel shaft by a flat.
  • the length of the lower bearing of the barrel shaft, and that of a barrel of the drum determine the frolicking of the drum, in relation to these flange and bottom surfaces.
  • the invention takes into account several solutions to achieve this reduction of the bung diameter.
  • a first solution is to ensure the frolicking between drum and cover by the mainspring, transferring to the spring this frolicking adjustment function, in particular by equipping the spring protruding areas, such as dots, more rolled areas wide, flange reported, or the like. he it is then possible to remove the bearing shoulders of the drum and the cover on the barrel shaft or on the bung.
  • a second solution is to make a bung in several parts, including two or three parts.
  • This solution makes it possible in particular to make a bung of diameter smaller than the pivoting diameter of the drum.
  • the plug is introduced through the bore of the drum.
  • a shaft or a bung in two parts, or more, facilitates the machining of hook of hook of the shell of the mainspring.
  • the bung may include, for the ratchet drive, a conventional square, or a thread. Or, in a non-limiting way, in a second variant
  • the bung can still include one or more washers or diameter catch rings for its guidance in platinum and bridge.
  • Another solution is to chase on the bung a setting washer of the drum-lid frog. This ring is mounted so as to avoid, for intervention on the barrel, any disassembly of a bridge.
  • the different variants proposed by the invention ensure ease of machining, ease of assembly, ease of disassembly, and control of axial debates between the various components and with respect to the bridges.
  • the invention relates to a watch drum assembly as defined in claim 1.
  • said spring comprises at least one projecting zone arranged to cooperate in support with an internal face of said drum and / or with an inner face of a cover delimiting with said drum a chamber for accommodating said spring, said protruding zone comprising at least one lug at least one of the edges that comprises said spring.
  • a said protruding zone comprises at least one turn extended in height of said spring.
  • a said protruding zone comprises at least one attached flange, of height locally higher than that of said spring, and fixed thereto.
  • said peripheral clearance is cylindrical and at the same height as said spring which is centered between said bearing surfaces, which are flat and perpendicular to said pivot axis.
  • said peripheral clearance has a height less than that of said spring which is centered obliquely between said bearing surfaces, which comprise oblique faces facing each other so as to define a vee d ' support for singing surfaces that includes said spring.
  • said receiving surface is a surface of revolution with respect to said pivot axis.
  • said surface of revolution is constituted by an internal clearance between two bearings, which define said maximum radius of said bung with respect to said pivot axis.
  • said internal clearance is cylindrical and at the same height as said spring which is centered between said bearing surfaces, which are flat and perpendicular to said pivot axis.
  • said internal clearance has a depth corresponding to twice the thickness of said spring.
  • said internal clearance has a height less than that of said spring which is centered obliquely between said bearing surfaces, which comprise oblique faces facing each other so as to define a vee d ' support for singing surfaces; that includes said spring.
  • said spring is enclosed in a chamber delimited by said drum and a cover, and said barrel assembly comprises, at said spring or said drum, means for limiting the longitudinal frust, according to the direction said pivot axis, between said cover and said motor spring.
  • said spring is fixed to said bung by friction.
  • said spring forms with said bung a welded or brazed monoblock spring-binder subassembly.
  • the invention also relates to a watchmaking movement comprising at least one such barrel assembly for energy storage with an incorporated input, or else a ratchet integral pivotally mounted to said bung, or by a fixed mounted toothing of drum pivoting said drum, and an output constituted respectively, or by a toothing drum mounted integral pivoting said drum, or by a ratchet integral pivotally of said bung.
  • the invention also relates to a timepiece comprising at least one such clockwork movement and / or at least one such set for storing energy with an incorporated input, or else a ratchet integral with pivoting said bung or by a toothing drum pivotally integral with said drum, and an outlet respectively constituted by a toothing drum mounted integral pivoting said drum, or by a ratchet integral pivotally of said bung.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • the invention relates to a mechanical watch cylinder with reduced bung diameter.
  • the invention relates to a watch barrel assembly 1 comprising at least one mainspring 2 of the barrel.
  • This spring 2 is mounted in torsion between, at a first end 21 a barrel drum 3, and at a second end 22 a receiving surface 5 which comprises a barrel plug 4 coaxial with the drum 3 about a pivot axis D.
  • the maximum radius of the plug 4 with respect to the pivot axis D is less than nine times the maximum thickness of the spring 2.
  • this barrel assembly 1 comprises, other than on the plug 4, means for adjusting the longitudinal gap 6, in the direction of the pivot axis D, between the drum 3 and the spring 2.
  • the drum 3 comprises, on its largest inside diameter, a peripheral clearance 36 between two bearing surfaces 33, 34, for the support and the peripheral support of the spring 2.
  • the Figures 2 and 3 show a bung included in an envelope radius R0 about the axis D.
  • the receiving surface 5 comprises a hook 41 for hooking the shell of the spring 2, a clearance 52 allows the attachment of the spring2 and facilitates the machining of the hook 41.
  • Spans 43 and 44 are provided to cooperate with stones mounted in the plates or bridges of the movement receiving the barrel assembly 1.
  • the square 42 is provided for the attachment of a ratchet 12.
  • the spans 45 and 46 cooperate respectively with a bore 35 of the drum 3 and a bore 75 of the cover 7.
  • the receiving surface 5 is a surface of revolution by relative to the pivot axis D.
  • this receiving surface is a contact surface for fixing the spring 2 by welding on the plug 4, by a point 53, or along a segment, preferably parallel to the pivot axis D, passing through such a point 53, as visible on the Figures 15A, 15B, 15C .
  • FIG 15A the spring 2 bears at point 53 on a cylindrical portion of the bung 4 of small width.
  • the spring 2 bears at the point 53 on a flat tangent to one of the bearing surfaces 45 or 46 of the drum 3 or the cover 7, here preferably to the bearing 45 intended to cooperate with the bore 35 of the drum 3.
  • the figure 15C illustrates a cylindrical bearing surface of the spring 2 wider than that of the figure 15A and which is locally confused with one of the bearing surfaces 45 or 46 for guiding the drum 3 or the cover 7, here preferably with the bearing surface 45 intended to cooperate with the bore 35 of the drum 3.
  • the surface of revolution 5 is constituted by an internal clearance 8 of height h included between two bearing surfaces 91, 92, belonging to flanges 47 and 48. These bearing surfaces 91 and 92 define the maximum radius of the bung 4 with respect to the pivoting axis D.
  • this internal clearance 8 is cylindrical and at the same height as the spring 2 which is centered between the bearing surfaces 91, 92 which are flat and perpendicular to the pivot axis D.
  • the internal clearance 8 has a depth P corresponding to twice the thickness of the spring 2.
  • the internal clearance 8 has a height h less than that of the spring 2 which is centered obliquely between the bearing surfaces 91, 92, an upper flange 47 and a lower flange 48.
  • These bearing surfaces 91 and 92 comprise faces oblique, inclined at an angle ⁇ , facing each other so as to define a support v for singing surfaces 27 and 28 that includes the spring 2.
  • the spring 2 is enclosed in a chamber 32 delimited by the drum 3 and a cover 7, and the barrel assembly 1 according to the invention comprises, other than on the bung 4, means for adjusting the longitudinal gap 6 in the direction of the pivot axis D between the cover 7 and the spring 2.
  • the Figure 1B illustrates an embodiment in which the drum comprises a shoulder 3A facing the spring 2, and can abut by a bearing surface 3B on a bearing surface 4B that includes the bung 4, and wherein the lid 7 has a shoulder 7A turned towards the spring 2, and can come to bear by a bearing surface 7B on a bearing surface 4C that includes the bung 4.
  • the spring 2 advantageously comprises at least one projecting zone 23 arranged to cooperate in support with an inner face 31 of the drum 3 or / and with an inner face 71 of a cover 7 delimiting with the drum 3 a chamber 32 for housing the spring 2.
  • such a protruding zone 23 comprises at least one lug 24 at the level of at least one of the edges 27; 28
  • This spring region 23 is arranged to cooperate with an inner surface 31 of the drum 3, and / or with an inner surface 71 of the cover 7, and preferably with both.
  • such a protruding zone 23 comprises at least one coil extended in height of the spring 2.
  • such a protruding zone 23 comprises at least one attached flange 26, locally higher than that of the spring 2, and fixed to the latter, for example by welding.
  • the drum 3 comprises, on its largest inside diameter, a peripheral clearance 36 between two upper and lower flanges 37, the edges of which, upper 27 and lower 28 respectively, two bearing surfaces 33 and 34, oblique at an angle ⁇ , for the support and the peripheral support of the spring 2.
  • peripheral clearance 36 is cylindrical and at the same height as the spring 2 which is centered between the bearing surfaces 33, 34, which are flat and perpendicular to the pivot axis D.
  • the peripheral clearance 36 has a height less than that of the spring 2, which is centered obliquely between the bearing surfaces 33 and 34 which comprise obliquely facing faces towards each other. defining a support v for singing surfaces 27; 28 that includes the spring 2.
  • the barrel assembly 1 comprises a spring 2 which is fixed to the bung 4 by friction, the end of the spring 2 then preferably comprises a shoulder designed to hold the free end of the spring 2 during its winding .
  • the spring 2 is welded or brazed to the bung 4 so as to form a monoblock spring-binder subassembly.
  • This embodiment is particularly advantageous, economical, and a very easy assembly.
  • the invention also relates to a watchmaking movement 100 comprising at least one such barrel assembly 1 for storing energy with an incorporated input, or else a ratchet 12 pivotally mounted on the plug 4, or by a set of teeth drum 13 mounted pivotally mounted to the drum 3, and an outlet respectively formed, or by a toothing drum 13 mounted pivotally integral with the drum 3, or by a ratchet 12 mounted pivotally integral with the bung 4.
  • the invention also relates to a timepiece 1000 comprising at least one watch movement 100 and / or at least one such barrel assembly for storing energy with an incorporated input, or else a ratchet 12 mounted integral with pivoting of the bung 4, or by a toothing drum 13 mounted pivotally integral with the drum 3, and an outlet constituted respectively, or by a toothing drum 13 mounted to pivotally attached to the drum 3, or by a ratchet 12 mounted pivotally connected to the bung 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Springs (AREA)
  • Gears, Cams (AREA)

Description

Domaine de l'inventionField of the invention

L'invention concerne un ensemble barillet d'horlogerie, comportant au moins un ressort moteur de barillet monté entre, à une première extrémité un tambour de barillet, et à une deuxième extrémité une surface de réception que comporte une bonde de barillet coaxiale audit tambour autour d'un axe de pivotement.The invention relates to a watch-barrel assembly, comprising at least one barrel-drive spring mounted between, at one end, a barrel drum, and at a second end a receiving surface that comprises a barrel plug coaxial with said drum around of a pivot axis.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel ensemble barillet.The invention also relates to a watch movement comprising at least one such barrel assembly.

L'invention concerne encore une pièce d'horlogerie comportant au moins un tel mouvement ou/et au moins un tel ensemble barillet.The invention also relates to a timepiece comprising at least one such movement and / or at least one such barrel assembly.

L'invention concerne le domaine de l'horlogerie, et plus particulièrement le domaine des barillets de stockage d'énergie, pour l'alimentation d'un mouvement, d'une sonnerie, ou d'une autre fonctionnalité d'une pièce d'horlogerie.The invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.

Arrière-plan de l'inventionBackground of the invention

Pour augmenter la réserve de marche, par augmentation du nombre de tours d'un ressort de barillet, une solution consiste en une diminution du diamètre de l'arbre de barillet et de la bonde associée, de façon à augmenter la place disponible dans le tambour pour le ressort.To increase the power reserve, by increasing the number of turns of a mainspring, one solution consists of a decrease in the diameter of the barrel shaft and the associated bung, so as to increase the space available in the drum. for the spring.

Le rapport du rayon de bonde par rapport à l'épaisseur du ressort est usuellement compris entre 10 et 20, et l'invention se propose d'abaisser ce rapport en-dessous de 10, et préférentiellement dans la plage comprise entre 5 et 10.The ratio of the bead radius to the thickness of the spring is usually between 10 and 20, and the invention proposes to lower this ratio below 10, and preferably in the range between 5 and 10.

Le dimensionnement ne doit pas être fait à la légère, en effet un risque de casse existe sir le diamètre de la bonde est trop faible.Sizing should not be done lightly, indeed a risk of breakage exists if the diameter of the plug is too small.

Dans l'architecture classique des barillets, un rochet est monté axialement sur un axe de barillet ou sur une bonde, par l'intermédiaire d'un carré, le rochet étant généralement fixé par une vis axiale. La dimension de cette vis et celle du carré conditionnent donc un diamètre minimal d'une portée de pivotement. Un épaulement jointif à cette portée de pivotement limite l'ébat axial de l'arbre ou de la bonde par rapport à une platine ou à un pont porteur d'une pierre ou similaire.In the classical architecture of the barrels, a ratchet is mounted axially on a barrel axis or on a bung, via a square, the ratchet being generally fixed by an axial screw. The size of this screw and that of the square thus condition a minimum diameter of a pivoting surface. A shoulder abutting with this pivoting surface limits axial fretting of the shaft or the bung relative to a plate or bridge carrying a stone or the like.

Un diamètre encore supérieur à celui de cet épaulement est nécessaire pour une portée de guidage en pivotement du tambour sur l'arbre ou sur la bonde, combinée à un épaulement de limitation de l'ébat axial du tambour. Le respect de sections de matière minimales implique une chaîne de cotation qui se traduit par un encombrement conséquent, difficile à réduire. On ne peut en particulier pas se contenter de réduire l'ensemble des dimensionnements, car les sections de matière sont alors insuffisantes pour assurer la tenue en fatigue.A diameter even greater than that of this shoulder is necessary for a pivoting guide surface of the drum on the shaft or on the bung, combined with a shoulder limiting axial fretting of the drum. The respect of minimal sections of matter implies a quotation chain which results in a large size, difficult to reduce. In particular, it is not enough to reduce all the sizing, because the sections of material are then insufficient to ensure fatigue resistance.

Le document CH 319 631 au nom de FELSA SA décrit un double barillet, et la façon dont est limité l'ébat de chacun des tambours. L'ébat d'un tambour inférieur est limité du côté supérieur par une collerette d'un manchon, lequel est poussé vers un épaulement de l'arbre de barillet, par un écrou vissé sur ce même arbre ; et, du côté inférieur, par un fond d'une bonde solidaire en pivotement de l'arbre de barillet par un plat. La longueur de la portée inférieure de l'arbre de barillet, et celle d'un canon du tambour déterminent l'ébat du tambour, en relation avec ces surfaces de collerette et de fond.The document CH 319 631 in the name of FELSA SA describes a double barrel, and how is limited the frolicking of each of the drums. The frog of a lower drum is limited on the upper side by a flange of a sleeve, which is pushed towards a shoulder of the barrel shaft, by a nut screwed on the same shaft; and, on the lower side, by a bottom of a bung integral in pivoting of the barrel shaft by a flat. The length of the lower bearing of the barrel shaft, and that of a barrel of the drum determine the frolicking of the drum, in relation to these flange and bottom surfaces.

Le document US 1 110 061 au nom de KIENZLE décrit une bonde montée débrayable sur un arbre de barillet (selon le sens de pivotement) ; cette bonde est en appui à la fois sur la platine et le pont, tandis que deux épaulements de cette bonde limitent la course du tambour et du couvercle.The document US 1 110 061 in the name of KIENZLE describes a bung mounted disengageable on a barrel shaft (in the direction of pivoting); this bung is supported both on the plate and the bridge, while two shoulders of this bung limit the travel of the drum and cover.

Le document US 3 564 839 au nom de WUTHRICH décrit un barillet qui comporte un filet sur le pont pour appui du tambour, et un tambour à canon. Le couvercle est une simple tôle posée sur la platine, sans lien avec l'arbre ni avec le tambour. L'arbre comporte deux épaulements, l'un venant en appui sur cette bonde, l'autre destiné à coopérer en appui avec le canon du tambour.The document US 3,564,839 in the name of WUTHRICH describes a barrel which has a net on the bridge for support of the drum, and a barrel drum. The lid is a simple sheet placed on the plate, without connection with the shaft or with the drum. The shaft has two shoulders, one bearing on this bung, the other intended to cooperate in support with the drum barrel.

Le document GB 1 162 296 au nom de CITIZEN divulgue un ressort avec une épaisseur variable, mais aucun enseignement ne concerne la qualification de sa hauteur.The document GB 1,162,296 in the name of CITIZEN discloses a spring with a variable thickness, but no teaching concerns the qualification of its height.

Le document CH 341 764 au nom de AUGE décrit un ressort avec des lames de largeurs différentes, soudées entre ellesThe document CH 341 764 in the name of AUGE describes a spring with blades of different widths, welded together

Tous ces documents décrivent des arbres de barillet avec crochet d'entraînement du ressort, mais aucun avec un arbre de barillet de révolution pour la réception du ressort. Ils ne décrivent pas particulièrement le dégagement éventuel, au niveau de l'arbre ou de la bonde, dans lequel serait positionné le ressort. Certains documents décrivent des ressorts dont la rigidité est modifiée au niveau de la spire interne terminale, par modification d'épaisseur ou autre, la géométrie du ressort n'y est pas prise en compte pour son centrage.All of these documents describe barrel shafts with spring drive hook, but none with a revolution barrel shaft for receiving the spring. They do not particularly describe the possible clearance, at the level of the shaft or the bung, in which the spring would be positioned. Some documents describe springs whose rigidity is modified at the inner end turn, by thickness modification or otherwise, the geometry of the spring is not taken into account for its centering.

Résumé de l'inventionSummary of the invention

Du fait de ces limites physiques au dimensionnement des différents composants, il est nécessaire d'envisager d'autres architectures de barillet que l'architecture classique qui vient d'être décrite.Because of these physical limitations to the dimensioning of the various components, it is necessary to consider other barrel architectures than the conventional architecture that has just been described.

L'invention prend en compte plusieurs solutions pour arriver à cette diminution du diamètre de bonde.The invention takes into account several solutions to achieve this reduction of the bung diameter.

Une contrainte importante est d'assurer la démontabilité de l'ensemble, pour un éventuel échange du ressort de barillet.An important constraint is to ensure the disassembly of the assembly, for a possible exchange of the mainspring.

Les différentes voies proposées par l'invention peuvent être combinées entre elles, pour obtenir un résultat optimal en fonction de l'encombrement disponible, de la position du rochet, de la présence ou non d'un couvercle pour la fermeture du barillet, cette fonction pouvant aussi être dévolue au rochet.The different routes proposed by the invention can be combined with each other, to obtain an optimal result depending on the space available, the position of the ratchet, the presence or absence of a lid for closing the cylinder, this function can also be devolved to the ratchet.

Une première solution consiste à assurer l'ébat entre tambour et couvercle par le ressort de barillet, en reportant sur le ressort cette fonction de réglage d'ébat, en particulier en équipant le ressort de zones saillantes, telles qu'ergots, zones laminées plus larges, bride rapportée, ou similaire. Il est alors possible de supprimer les épaulements d'appui du tambour et du couvercle sur l'arbre de barillet ou sur la bonde.A first solution is to ensure the frolicking between drum and cover by the mainspring, transferring to the spring this frolicking adjustment function, in particular by equipping the spring protruding areas, such as dots, more rolled areas wide, flange reported, or the like. he it is then possible to remove the bearing shoulders of the drum and the cover on the barrel shaft or on the bung.

Une deuxième solution consiste à réaliser une bonde en plusieurs parties, notamment en deux ou trois parties. Cette solution permet notamment de réaliser une bonde de diamètre inférieur au diamètre de pivotement du tambour. Avantageusement, la bonde est introduite par l'alésage du tambour. Un arbre ou une bonde en deux parties, ou davantage, facilite l'usinage du crochet d'accrochage du coquillon du ressort de barillet.A second solution is to make a bung in several parts, including two or three parts. This solution makes it possible in particular to make a bung of diameter smaller than the pivoting diameter of the drum. Advantageously, the plug is introduced through the bore of the drum. A shaft or a bung in two parts, or more, facilitates the machining of hook of hook of the shell of the mainspring.

La bonde peut comporter, pour l'entraînement du rochet, un carré classique, ou encore un filetage. Ou encore, de façon non limitative, dans une deuxième varianteThe bung may include, for the ratchet drive, a conventional square, or a thread. Or, in a non-limiting way, in a second variant

La bonde peut encore comporter une ou plusieurs rondelles ou bagues de rattrapage de diamètre pour son guidage dans platine et pont.The bung can still include one or more washers or diameter catch rings for its guidance in platinum and bridge.

Une autre solution consiste à chasser sur la bonde une rondelle de réglage de l'ébat tambour-couvercle. Cette bague est montée de façon à éviter, pour une intervention sur le barillet, tout démontage d'un pont.Another solution is to chase on the bung a setting washer of the drum-lid frog. This ring is mounted so as to avoid, for intervention on the barrel, any disassembly of a bridge.

Une autre solution encore consiste à assurer le pivotement dans les ponts pour le tambour ou/et le couvercle, au lieu d'effectuer ce pivotement au niveau de l'arbre de barillet ou de la bonde. Avantageusement, à la fois le tambour et le couvercle sont pivotés dans une platine et un pont.Yet another solution is to provide pivoting in the bridges for the drum and / or the cover, instead of performing this pivoting at the barrel shaft or the plug. Advantageously, both the drum and the lid are pivoted in a plate and a bridge.

Les différentes variantes proposées par l'invention assurent une facilité d'usinage, une facilité de montage, une facilité de démontage, et une maîtrise des débats axiaux entre les différents composants et par rapport aux ponts.The different variants proposed by the invention ensure ease of machining, ease of assembly, ease of disassembly, and control of axial debates between the various components and with respect to the bridges.

L'invention concerne un ensemble barillet d'horlogerie tel que défini dans la revendication 1.The invention relates to a watch drum assembly as defined in claim 1.

Selon une caractéristique de l'invention, ledit ressort comporte au moins une zone saillante agencée pour coopérer en appui avec une face interne dudit tambour ou/et avec une face interne d'un couvercle délimitant avec ledit tambour une chambre de logement dudit ressort, ladite zone saillante comportant au moins un ergot au niveau d'au moins un des chants que comporte ledit ressort.According to a characteristic of the invention, said spring comprises at least one projecting zone arranged to cooperate in support with an internal face of said drum and / or with an inner face of a cover delimiting with said drum a chamber for accommodating said spring, said protruding zone comprising at least one lug at least one of the edges that comprises said spring.

Selon une caractéristique de l'invention, une dite zone saillante comporte au moins une spire étendue en hauteur dudit ressort.According to a feature of the invention, a said protruding zone comprises at least one turn extended in height of said spring.

Selon une caractéristique de l'invention, une dite zone saillante comporte au moins une bride rapportée, de hauteur localement supérieure à celle dudit ressort, et fixée à ce dernier.According to a characteristic of the invention, a said protruding zone comprises at least one attached flange, of height locally higher than that of said spring, and fixed thereto.

Selon une caractéristique de l'invention, ledit dégagement périphérique est cylindrique et a la même hauteur que ledit ressort lequel est centré entre lesdites portées, qui sont planes et perpendiculaires audit axe de pivotement.According to a feature of the invention, said peripheral clearance is cylindrical and at the same height as said spring which is centered between said bearing surfaces, which are flat and perpendicular to said pivot axis.

Selon une caractéristique de l'invention, ledit dégagement périphérique a une hauteur inférieure à celle dudit ressort lequel est centré en appui oblique entre lesdites portées, lesquelles comportent des faces obliques tournées l'une vers l'autre de façon à définir un vé d'appui pour des surfaces de chant que comporte ledit ressort.According to a feature of the invention, said peripheral clearance has a height less than that of said spring which is centered obliquely between said bearing surfaces, which comprise oblique faces facing each other so as to define a vee d ' support for singing surfaces that includes said spring.

Selon une caractéristique de l'invention, ladite surface de réception est une surface de révolution par rapport audit axe de pivotement.According to a characteristic of the invention, said receiving surface is a surface of revolution with respect to said pivot axis.

Selon une caractéristique de l'invention, ladite surface de révolution est constituée par un dégagement intérieur compris entre deux portées, lesquelles définissent ledit rayon maximal de ladite bonde par rapport audit axe de pivotement.According to a feature of the invention, said surface of revolution is constituted by an internal clearance between two bearings, which define said maximum radius of said bung with respect to said pivot axis.

Selon une caractéristique de l'invention, ledit dégagement intérieur est cylindrique et a la même hauteur que ledit ressort lequel est centré entre lesdites portées, qui sont planes et perpendiculaires audit axe de pivotement.According to a feature of the invention, said internal clearance is cylindrical and at the same height as said spring which is centered between said bearing surfaces, which are flat and perpendicular to said pivot axis.

Selon une caractéristique de l'invention, ledit dégagement intérieur a une profondeur correspondant à deux fois l'épaisseur dudit ressort.According to a characteristic of the invention, said internal clearance has a depth corresponding to twice the thickness of said spring.

Selon une caractéristique de l'invention, ledit dégagement intérieur a une hauteur inférieure à celle dudit ressort lequel est centré en appui oblique entre lesdites portées, lesquelles comportent des faces obliques tournées l'une vers l'autre de façon à définir un vé d'appui pour des surfaces de chant; que comporte ledit ressort.According to a characteristic of the invention, said internal clearance has a height less than that of said spring which is centered obliquely between said bearing surfaces, which comprise oblique faces facing each other so as to define a vee d ' support for singing surfaces; that includes said spring.

Selon une caractéristique de l'invention, ledit ressort est enfermé dans une chambre délimitée par ledit tambour et un couvercle, et ledit ensemble barillet comporte, au niveau dudit ressort ou dudit tambour, des moyens de limitation de l'ébat longitudinal, selon la direction dudit axe de pivotement, entre ledit couvercle et ledit ressort moteur.According to a characteristic of the invention, said spring is enclosed in a chamber delimited by said drum and a cover, and said barrel assembly comprises, at said spring or said drum, means for limiting the longitudinal frust, according to the direction said pivot axis, between said cover and said motor spring.

Selon une caractéristique de l'invention, ledit ressort est fixé à ladite bonde par friction.According to a characteristic of the invention, said spring is fixed to said bung by friction.

Selon une autre caractéristique de l'invention, ledit ressort forme avec ladite bonde un sous-ensemble ressort-bonde monobloc soudé ou brasé.According to another characteristic of the invention, said spring forms with said bung a welded or brazed monoblock spring-binder subassembly.

L'invention concerne encore un mouvement d'horlogerie comportant au moins un tel ensemble barillet pour le stockage d'énergie avec une entrée constituée, ou bien par un rochet monté solidaire en pivotement de ladite bonde, ou bien par une denture de tambour montée solidaire en pivotement dudit tambour, et une sortie constituée respectivement, ou bien par une denture de tambour montée solidaire en pivotement dudit tambour, ou bien par un rochet monté solidaire en pivotement de ladite bonde.The invention also relates to a watchmaking movement comprising at least one such barrel assembly for energy storage with an incorporated input, or else a ratchet integral pivotally mounted to said bung, or by a fixed mounted toothing of drum pivoting said drum, and an output constituted respectively, or by a toothing drum mounted integral pivoting said drum, or by a ratchet integral pivotally of said bung.

L'invention concerne encore une pièce d'horlogerie comportant au moins un tel mouvement d'horlogerie ou/et au moins un tel ensemble pour le stockage d'énergie avec une entrée constituée, ou bien par un rochet monté solidaire en pivotement de ladite bonde, ou bien par une denture de tambour montée solidaire en pivotement dudit tambour, et une sortie constituée respectivement, ou bien par une denture de tambour montée solidaire en pivotement dudit tambour, ou bien par un rochet monté solidaire en pivotement de ladite bonde.The invention also relates to a timepiece comprising at least one such clockwork movement and / or at least one such set for storing energy with an incorporated input, or else a ratchet integral with pivoting said bung or by a toothing drum pivotally integral with said drum, and an outlet respectively constituted by a toothing drum mounted integral pivoting said drum, or by a ratchet integral pivotally of said bung.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront mieux à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où:

  • la figure 1 représente, de façon schématisée et en coupe dans un plan passant par son axe de pivotement, un barillet d'horlogerie,
  • la figure 1A représente, de façon schématisée et en coupe dans un plan passant par son axe de pivotement, un barillet selon l'invention,
  • la figure 1B représente, de façon schématisée et en coupe dans un plan passant par son axe de pivotement, une autre variante de barillet selon l'invention,
  • la figure 2 représente, de façon schématisée et en perspective, une bonde de barillet selon l'invention,
  • la figure 3 représente, de façon schématisée et en perspective, une variante de bonde selon l'invention, comportant un dégagement de maintien du ressort de barillet,
  • la figure 4 représente, de façon schématisée et en vue de dessus, la bonde de la figure 2,
  • les figures 5A, 5B, et 5C représentent, de façon schématisée, respectivement en élévation, en coupe, et en plan, une bonde avec un ressort monté par friction, et l'extrémité de ce ressort présentée à plat,
  • les figures 6A, 6B, et 6C représentent, de façon schématisée, respectivement en élévation, en coupe, et en plan, une bonde avec un autre type de ressort monté par friction, et l'extrémité de ce ressort présentée à plat,
  • la figure 7 représente, de façon schématisée, partielle, et en coupe dans un plan passant par son axe de pivotement, un barillet selon l'invention, avec un aménagement particulier de la bonde au niveau de la surface de réception interne du ressort,
  • la figure 8 représente, de façon schématisée, partielle, et en coupe dans un plan passant par son axe de pivotement, dans sa partie droite un barillet selon l'invention, avec un ressort muni d'ergots selon l'invention, et la figure 8A représente, à plat, un détail de ce ressort,
  • la figure 9 représente, de façon schématisée et en perspective, un ressort selon l'invention avec un laminage localement plus large faisant saillie, et la figure 10 montre un détail de ce ressort,
  • la figure 11 représente, de façon schématisée et en perspective, un ressort selon l'invention avec une bride rapportée faisant saillie, et la figure 12 montre un détail de ce ressort,
  • la figure 13 représente, de façon schématisée, partielle, et en coupe dans un plan passant par son axe de pivotement, un barillet selon l'invention, avec un aménagement particulier du plus grand diamètre de ce barillet au niveau de la surface de réception externe du ressort,
  • la figure 14 représente, sous forme d'un schéma-blocs, un mouvement d'horlogerie comportant un ensemble barillet selon l'invention, et une pièce d'horlogerie comportant ce mouvement et un ensemble barillet selon l'invention,
  • les figures 15A, 15B, et 15C représentent, de façon et en perspectives, différentes variantes d'une bonde selon l'invention agencées pour le soudage du ressort de barillet,
  • la figure 16 représente, sous forme d'un schéma-blocs, un mouvement d'horlogerie comportant un ensemble barillet selon l'invention, et une pièce d'horlogerie comportant ce mouvement et un ensemble barillet selon l'invention.
Other characteristics and advantages of the invention will appear better on reading the detailed description which follows, with reference to the appended drawings, in which:
  • the figure 1 represents, schematically and in section in a plane passing through its pivot axis, a watch cylinder,
  • the Figure 1A represents, schematically and in section in a plane passing through its pivot axis, a cylinder according to the invention,
  • the Figure 1B represents, schematically and in section in a plane passing through its pivot axis, another variant of a cylinder according to the invention,
  • the figure 2 represents schematically and in perspective, a barrel plug according to the invention,
  • the figure 3 represents schematically and in perspective, a bung variant according to the invention, comprising a holding clearance of the mainspring,
  • the figure 4 represents, schematically and in top view, the bung of the figure 2 ,
  • the FIGS. 5A, 5B, and 5C show, schematically, respectively in elevation, in section, and in plan, a bung with a spring mounted by friction, and the end of this spring presented flat,
  • the Figures 6A, 6B, and 6C represent, schematically, respectively in elevation, in section, and in plan, a bung with a another type of friction-mounted spring, and the end of this spring presented flat,
  • the figure 7 represents, schematically, partially, and in section in a plane passing through its pivot axis, a cylinder according to the invention, with a particular arrangement of the bung at the internal receiving surface of the spring,
  • the figure 8 represents, schematically, partially, and in section in a plane passing through its axis of pivoting, in its right part a cylinder according to the invention, with a spring provided with pins according to the invention, and the figure 8A represents, flat, a detail of this spring,
  • the figure 9 represents, schematically and in perspective, a spring according to the invention with a locally wider rolling projecting, and the figure 10 shows a detail of this spring,
  • the figure 11 represents schematically and in perspective, a spring according to the invention with a projecting flange projecting, and the figure 12 shows a detail of this spring,
  • the figure 13 represents, schematically, partially, and in section in a plane passing through its pivot axis, a cylinder according to the invention, with a particular arrangement of the largest diameter of this barrel at the external receiving surface of the spring,
  • the figure 14 represents, in the form of a block diagram, a watch movement comprising a barrel assembly according to the invention, and a timepiece comprising this movement and a barrel assembly according to the invention,
  • the Figures 15A, 15B, and 15C represent, in a manner and in perspective, different variants of a bung according to the invention arranged for the welding of the mainspring,
  • the figure 16 represents, in the form of a block diagram, a watch movement comprising a barrel assembly according to the invention, and a timepiece comprising this movement and a barrel assembly according to the invention.

Description détaillée des modes de réalisation préférésDetailed Description of the Preferred Embodiments

L'invention concerne le domaine de l'horlogerie, et plus particulièrement le domaine des barillets de stockage d'énergie, pour l'alimentation d'un mouvement, d'une sonnerie, ou d'une autre fonctionnalité d'une pièce d'horlogerie.The invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.

Plus particulièrement, l'invention concerne un barillet pour montre mécanique avec diamètre de bonde réduit.More particularly, the invention relates to a mechanical watch cylinder with reduced bung diameter.

Dans une version particulière, l'invention concerne un ensemble barillet 1 d'horlogerie, comportant au moins un ressort moteur 2 de barillet. Ce ressort 2 est monté en torsion entre, à une première extrémité 21 un tambour 3 de barillet, et à une deuxième extrémité 22 une surface de réception 5 que comporte une bonde 4 de barillet coaxiale à ce tambour 3 autour d'un axe de pivotement D.In a particular version, the invention relates to a watch barrel assembly 1 comprising at least one mainspring 2 of the barrel. This spring 2 is mounted in torsion between, at a first end 21 a barrel drum 3, and at a second end 22 a receiving surface 5 which comprises a barrel plug 4 coaxial with the drum 3 about a pivot axis D.

Selon l'invention le rayon maximal de la bonde 4 par rapport à l'axe de pivotement D est inférieur à neuf fois l'épaisseur maximale du ressort 2.According to the invention the maximum radius of the plug 4 with respect to the pivot axis D is less than nine times the maximum thickness of the spring 2.

Et cet ensemble barillet 1 comporte, ailleurs que sur la bonde 4, des moyens d'ajustement de l'ébat longitudinal 6, selon la direction de l'axe de pivotement D, entre le tambour 3 et le ressort 2.And this barrel assembly 1 comprises, other than on the plug 4, means for adjusting the longitudinal gap 6, in the direction of the pivot axis D, between the drum 3 and the spring 2.

De façon particulière, le tambour 3 comporte, sur son plus grand diamètre intérieur, un dégagement périphérique 36 compris entre deux portées 33, 34, pour l'appui et le maintien périphérique du ressort 2.In particular, the drum 3 comprises, on its largest inside diameter, a peripheral clearance 36 between two bearing surfaces 33, 34, for the support and the peripheral support of the spring 2.

Les figures 2 et 3 montrent une bonde incluse dans une enveloppe de rayon R0 autour de l'axe D. La surface de réception 5 comporte un crochet 41 pour l'accrochage du coquillon du ressort 2, un dégagement 52 permet l'accrochage du ressort2 et facilite l'usinage du crochet 41. Des portées 43 et 44 sont prévues pour coopérer avec des pierres montées dans des platines ou ponts du mouvement recevant l'ensemble barillet 1. Le carré 42 est prévu pour l'accrochage d'un rochet 12. Les portées 45 et 46 coopèrent respectivement avec un alésage 35 du tambour 3 et un alésage 75 du couvercle 7.The Figures 2 and 3 show a bung included in an envelope radius R0 about the axis D. The receiving surface 5 comprises a hook 41 for hooking the shell of the spring 2, a clearance 52 allows the attachment of the spring2 and facilitates the machining of the hook 41. Spans 43 and 44 are provided to cooperate with stones mounted in the plates or bridges of the movement receiving the barrel assembly 1. The square 42 is provided for the attachment of a ratchet 12. The spans 45 and 46 cooperate respectively with a bore 35 of the drum 3 and a bore 75 of the cover 7.

Dans une réalisation particulière, tel que visible sur les figures 3, 15A, 15B, 15C, la surface de réception 5 est une surface de révolution par rapport à l'axe de pivotement D. De préférence, cette surface de réception est une surface de contact pour une fixation du ressort 2 par soudure sur la bonde 4, par un point 53, ou encore le long d'un segment, de préférence parallèle à l'axe de pivotement D, passant par un tel point 53, tel que visible sur les figures 15A, 15B, 15C.In a particular embodiment, as visible on the figures 3 , 15A, 15B, 15C , the receiving surface 5 is a surface of revolution by relative to the pivot axis D. Preferably, this receiving surface is a contact surface for fixing the spring 2 by welding on the plug 4, by a point 53, or along a segment, preferably parallel to the pivot axis D, passing through such a point 53, as visible on the Figures 15A, 15B, 15C .

Dans le cas de la figure 15A le ressort 2 vient en appui au point 53 sur une portion cylindrique de la bonde 4 de petite largeur. Dans le cas de la figure 15B le ressort 2 vient en appui au point 53 sur un plat tangent à l'une des portées 45 ou 46 de guidage du tambour 3 ou du couvercle 7, ici préférentiellement à la portée 45 destinée à coopérer avec l'alésage 35 du tambour 3. La figure 15C illustre une surface cylindrique d'appui du ressort 2 plus large que celle de la figure 15A, et qui est localement confondue avec l'une des portées 45 ou 46 de guidage du tambour 3 ou du couvercle 7, ici préférentiellement avec la portée 45 destinée à coopérer avec l'alésage 35 du tambour 3.In the case of figure 15A the spring 2 bears at point 53 on a cylindrical portion of the bung 4 of small width. In the case of figure 15B the spring 2 bears at the point 53 on a flat tangent to one of the bearing surfaces 45 or 46 of the drum 3 or the cover 7, here preferably to the bearing 45 intended to cooperate with the bore 35 of the drum 3. The figure 15C illustrates a cylindrical bearing surface of the spring 2 wider than that of the figure 15A and which is locally confused with one of the bearing surfaces 45 or 46 for guiding the drum 3 or the cover 7, here preferably with the bearing surface 45 intended to cooperate with the bore 35 of the drum 3.

Dans une réalisation particulière, tel que visible sur la figure 3, la surface de révolution 5 est constituée par un dégagement intérieur 8 de hauteur h compris entre deux portées 91, 92, appartenant à des collerettes 47 et 48. Ces portées 91 et 92 définissent le rayon maximal de la bonde 4 par rapport à l'axe de pivotement D. De préférence, ce dégagement intérieur 8 est cylindrique et a la même hauteur que le ressort 2 lequel est centré entre les portées 91, 92 qui sont planes et perpendiculaires à l'axe de pivotement D.In a particular embodiment, as visible on the figure 3 , the surface of revolution 5 is constituted by an internal clearance 8 of height h included between two bearing surfaces 91, 92, belonging to flanges 47 and 48. These bearing surfaces 91 and 92 define the maximum radius of the bung 4 with respect to the pivoting axis D. Preferably, this internal clearance 8 is cylindrical and at the same height as the spring 2 which is centered between the bearing surfaces 91, 92 which are flat and perpendicular to the pivot axis D.

Avantageusement, le dégagement intérieur 8 a une profondeur P correspondant à deux fois l'épaisseur du ressort 2.Advantageously, the internal clearance 8 has a depth P corresponding to twice the thickness of the spring 2.

Dans une autre variante illustrée par la figure 7, le dégagement intérieur 8 a une hauteur h inférieure à celle du ressort 2 lequel est centré en appui oblique entre des portées 91, 92, d'une collerette supérieure 47 et d'une collerette inférieure 48. Ces portées 91 et 92 comportent des faces obliques, inclinées d'un angle α, tournées l'une vers l'autre de façon à définir un vé d'appui pour des surfaces de chant 27 et 28 que comporte le ressort 2.In another variant illustrated by the figure 7 , the internal clearance 8 has a height h less than that of the spring 2 which is centered obliquely between the bearing surfaces 91, 92, an upper flange 47 and a lower flange 48. These bearing surfaces 91 and 92 comprise faces oblique, inclined at an angle α, facing each other so as to define a support v for singing surfaces 27 and 28 that includes the spring 2.

Dans une réalisation préférée, tel que visible sur les figures 1A et 1B, le ressort 2 est enfermé dans une chambre 32 délimitée par le tambour 3 et un couvercle 7, et l'ensemble barillet 1 selon l'invention comporte, ailleurs que sur la bonde 4, des moyens d'ajustement de l'ébat longitudinal 6, selon la direction de l'axe de pivotement D, entre le couvercle 7 et le ressort 2.In a preferred embodiment, as visible on the Figures 1A and 1B the spring 2 is enclosed in a chamber 32 delimited by the drum 3 and a cover 7, and the barrel assembly 1 according to the invention comprises, other than on the bung 4, means for adjusting the longitudinal gap 6 in the direction of the pivot axis D between the cover 7 and the spring 2.

La figure 1B illustre une réalisation dans laquelle le tambour comporte un épaulement 3A tourné vers le ressort 2, et peut venir en appui par une surface d'appui 3B sur une surface d'appui 4B que comporte la bonde 4, et où le couvercle 7 comporte un épaulement 7A tourné vers le ressort 2, et peut venir en appui par une surface d'appui 7B sur une surface d'appui 4C que comporte la bonde 4.The Figure 1B illustrates an embodiment in which the drum comprises a shoulder 3A facing the spring 2, and can abut by a bearing surface 3B on a bearing surface 4B that includes the bung 4, and wherein the lid 7 has a shoulder 7A turned towards the spring 2, and can come to bear by a bearing surface 7B on a bearing surface 4C that includes the bung 4.

Tel que visible sur les figures 8 et 8A, le ressort 2 comporte avantageusement au moins une zone saillante 23 agencée pour coopérer en appui avec une face interne 31 du tambour 3 ou/et avec une face interne 71 d'un couvercle 7 délimitant avec le tambour 3 une chambre 32 de logement du ressort 2.As visible on the Figures 8 and 8A , the spring 2 advantageously comprises at least one projecting zone 23 arranged to cooperate in support with an inner face 31 of the drum 3 or / and with an inner face 71 of a cover 7 delimiting with the drum 3 a chamber 32 for housing the spring 2.

Tel que visible sur la figure 8A, dans une première variante, une telle zone saillante 23 comporte au moins un ergot 24 au niveau d'au moins un des chants 27; 28 que comporte le ressort 2. Cette zone saillante 23 est agencée pour coopérer avec une surface intérieure 31 du tambour 3, ou/et avec une surface intérieure 71 du couvercle 7, et de préférence avec l'une et l'autre.As visible on the figure 8A in a first variant, such a protruding zone 23 comprises at least one lug 24 at the level of at least one of the edges 27; 28 This spring region 23 is arranged to cooperate with an inner surface 31 of the drum 3, and / or with an inner surface 71 of the cover 7, and preferably with both.

Dans une autre variante visible sur la figure 9 ou 10, une telle zone saillante 23 comporte au moins une spire étendue en hauteur du ressort 2.In another variant visible on the figure 9 or 10 such a protruding zone 23 comprises at least one coil extended in height of the spring 2.

Dans une autre variante encore, visible sur les figures 11 et 12, une telle zone saillante 23 comporte au moins une bride rapportée 26, de hauteur localement supérieure à celle du ressort 2, et fixée à ce dernier, par exemple par soudage.In another variant, visible on the Figures 11 and 12 such a protruding zone 23 comprises at least one attached flange 26, locally higher than that of the spring 2, and fixed to the latter, for example by welding.

Dans la réalisation particulière de la figure 13, le tambour 3 comporte, sur son plus grand diamètre intérieur, un dégagement périphérique 36 compris entre deux collerettes supérieure 37 et inférieure 38 dont les chants, supérieur 27 et inférieur 28, portent respectivement deux portées 33 et 34, obliques selon un angle α, pour l'appui et le maintien périphérique du ressort 2.In the particular realization of the figure 13 , the drum 3 comprises, on its largest inside diameter, a peripheral clearance 36 between two upper and lower flanges 37, the edges of which, upper 27 and lower 28 respectively, two bearing surfaces 33 and 34, oblique at an angle α, for the support and the peripheral support of the spring 2.

La combinaison des réalisations des figures 7 et 13 est de réalisation facile et garantit un bon maintien du ressort 2. Dans le cas préféré où celui-ci comporte une zone saillante 23, elle est à une cote fixe par rapport au tambour 3 ou/et au couvercle 7, ce qui garantit un réglage parfait de l'ébat.The combination of the achievements of figures 7 and 13 is easy to achieve and ensures good retention of the spring 2. In the preferred case where it has a projecting zone 23, it is at a fixed dimension relative to the drum 3 and / or the cover 7, which guarantees a setting perfect of the frolic.

Dans une variante, le dégagement périphérique 36 est cylindrique et a la même hauteur que le ressort 2 lequel est centré entre les portées 33, 34, qui sont planes et perpendiculaires à l'axe de pivotement D.In a variant, the peripheral clearance 36 is cylindrical and at the same height as the spring 2 which is centered between the bearing surfaces 33, 34, which are flat and perpendicular to the pivot axis D.

Dans cette variante, tel qu'illustré, le dégagement périphérique 36 a une hauteur inférieure à celle du ressort 2, lequel est centré en appui oblique entre les portées 33 et 34 lesquelles comportent des faces obliques tournées l'une vers l'autre de façon à définir un vé d'appui pour des surfaces de chant 27; 28 que comporte le ressort 2.In this variant, as illustrated, the peripheral clearance 36 has a height less than that of the spring 2, which is centered obliquely between the bearing surfaces 33 and 34 which comprise obliquely facing faces towards each other. defining a support v for singing surfaces 27; 28 that includes the spring 2.

Tel que visible notamment, mais de façon non limitative sur les figures 5A, 5B, 5C, 6A, 6B, 6C, l'ensemble barillet 1 comporte un ressort 2 qui est fixé à la bonde 4 par friction, l'extrémité du ressort 2 comporte alors de préférence un épaulement conçu pour maintenir en arc-boutement l'extrémité libre du ressort 2 lors de son enroulement..As visible in particular, but in a non-limiting way on FIGS. 5A, 5B, 5C, 6A, 6B, 6C , the barrel assembly 1 comprises a spring 2 which is fixed to the bung 4 by friction, the end of the spring 2 then preferably comprises a shoulder designed to hold the free end of the spring 2 during its winding ..

Dans d'autres réalisations, le ressort 2 est soudé ou brasé à la bonde 4 de façon à former un sous-ensemble ressort-bonde monobloc. Cette réalisation est particulièrement avantageuse, économique, et d'un montage très facile.In other embodiments, the spring 2 is welded or brazed to the bung 4 so as to form a monoblock spring-binder subassembly. This embodiment is particularly advantageous, economical, and a very easy assembly.

L'invention concerne encore un mouvement d'horlogerie 100 comportant au moins un tel ensemble barillet 1 pour le stockage d'énergie avec une entrée constituée, ou bien par un rochet 12 monté solidaire en pivotement de la bonde 4, ou bien par une denture de tambour 13 montée solidaire en pivotement du tambour 3, et une sortie constituée respectivement, ou bien par une denture de tambour 13 montée solidaire en pivotement du tambour 3, ou bien par un rochet 12 monté solidaire en pivotement de la bonde 4.The invention also relates to a watchmaking movement 100 comprising at least one such barrel assembly 1 for storing energy with an incorporated input, or else a ratchet 12 pivotally mounted on the plug 4, or by a set of teeth drum 13 mounted pivotally mounted to the drum 3, and an outlet respectively formed, or by a toothing drum 13 mounted pivotally integral with the drum 3, or by a ratchet 12 mounted pivotally integral with the bung 4.

L'invention concerne encore une pièce d'horlogerie 1000 comportant au moins un tel mouvement d'horlogerie 100 ou/et au moins un tel ensemble barillet pour le stockage d'énergie avec une entrée constituée, ou bien par un rochet 12 monté solidaire en pivotement de la bonde 4, ou bien par une denture de tambour 13 montée solidaire en pivotement du tambour 3, et une sortie constituée respectivement, ou bien par une denture de tambour 13 montée solidaire en pivotement du tambour 3, ou bien par un rochet 12 monté solidaire en pivotement de la bonde 4.The invention also relates to a timepiece 1000 comprising at least one watch movement 100 and / or at least one such barrel assembly for storing energy with an incorporated input, or else a ratchet 12 mounted integral with pivoting of the bung 4, or by a toothing drum 13 mounted pivotally integral with the drum 3, and an outlet constituted respectively, or by a toothing drum 13 mounted to pivotally attached to the drum 3, or by a ratchet 12 mounted pivotally connected to the bung 4.

Claims (18)

  1. Timepiece barrel assembly (1), including at least one torsionally mounted mainspring (2) between, at a first end (21), a barrel drum (3), and at a second end (22), a receiving surface (5) comprised in a barrel core (4) coaxial to said barrel (3) about a pivot axis (D), the maximum radius of said core (4) relative to said pivot axis (D) being less than nine times the maximum thickness of said spring (2), said barrel assembly (1) further including, elsewhere than on said core (4) and on said spring (2) or said drum (3), a longitudinal shake adjustment means (6), in the direction of said pivot axis (D), between said drum (3) and said mainspring (2), said longitudinal shake adjustment means (6) including at least one peripheral recess (36) comprised in said drum (3) on the largest internal diameter thereof, said peripheral recess being arranged between two shoulders (33; 34) for the abutment and peripheral holding of said spring (2).
  2. Barrel assembly (1) according to claim 1, characterized in that said spring (2) includes at least one projecting area (23) arranged to cooperate in abutment with an inner face (31) of said drum (3) and/or with an inner face (71) of a cover (7) delimiting, with said drum (3), a chamber (32) for housing said spring (2).
  3. Barrel assembly (1) according to claim 2, characterized in that one said projecting area (23) includes at least one lug (24) on at least one of the edges (27; 28) of said spring (2).
  4. Barrel assembly (1) according to claim 2, characterized in that said at least one projecting area (23) includes at least one height extended coil of said spring (2).
  5. Barrel assembly (1) according to claim 2, characterized in that said at least one projecting area (23) includes at least one added flange (26), of greater height locally than said spring (2), and fixed to said spring.
  6. Barrel assembly (1) according to any of the preceding claims, characterized in that said peripheral recess (36) is cylindrical and has the same height as said spring (2) which is centred between said shoulders (33, 34) which are flat and perpendicular to said pivot axis (D).
  7. Barrel assembly (1) according to any of claims 1 to 5, characterized in that said peripheral recess (36) has a lower height than that of said spring (2) which is centred in oblique abutment between said shoulders (33; 34) which include oblique faces facing each other to define a V-shaped support for the edge surfaces (27; 28) comprised in said spring (2).
  8. Barrel assembly (1) according to any of the preceding claims, characterized in that said receiving surface (5) is a surface of revolution relative to said pivot axis (D).
  9. Barrel assembly (1) according to claim 8, characterized in that said surface of revolution is formed by an inner recess (8) comprised between two shoulders (91, 92) which define said maximum radius of said core (4) relative to said pivot axis (D).
  10. Barrel assembly (1) according to claim 9, characterized in that said inner recess (8) is cylindrical and has the same height as said spring (2) which is centred between said shoulders (91, 92) which are flat and perpendicular to said pivot axis (D).
  11. Barrel assembly (1) according to claim 10, characterized in that said inner recess (8) has a depth equal to two times the thickness of said spring (2).
  12. Barrel assembly (1) according to claim 8, characterized in that said inner recess (8) has a lower height than that of said spring (2) which is centred in oblique abutment between said shoulders (91; 92) which include oblique faces facing each other to define a V-shaped support for the edge surfaces (27; 28) comprised in said spring (2).
  13. Barrel assembly (1) according to any of the preceding claims, characterized in that said spring (2) is confined in a chamber (32) delimited by said drum (3) and a cover (7) .
  14. Barrel assembly (1) according to any of the preceding claims, characterized in that said spring (2) is fixed by friction to said core (4).
  15. Barrel assembly (1) according to any of claims 1 to 13, characterized in that said spring (2) forms with said core (4) a single-piece, welded or brazed spring/core sub-assembly.
  16. Timepiece movement (100) including at least one barrel assembly (1) according to any of the preceding claims for storing energy with one input, formed either by a ratchet (12) arranged to pivot integrally with said core (4), or by a drum toothing (13) arranged to pivot integrally with said drum (3), and one output respectively formed either by a drum toothing (13) arranged to pivot integrally with said drum (3), or by a ratchet (12) arranged to pivot integrally with said core (4).
  17. Timepiece (1000) including at least one timepiece movement (100) according to claim 16 and/or at least one barrel assembly (1) according to any of the claims 1 to 15 for storing energy with one input formed either by a ratchet (12) arranged to pivot integrally with said core (4) or by a drum toothing (13) arranged to pivot integrally with said drum (3), and one output respectively formed either by a drum toothing (13) arranged to pivot integrally with said drum (3), or by a ratchet (12) arranged to pivot integrally with said core (4).
  18. Timepiece (1000) according to the preceding claim, characterized in that the timepiece is a mechanical watch.
EP11181352.3A 2011-09-15 2011-09-15 Clock barrel assembly with reduced core diameter Active EP2570862B1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP11181352.3A EP2570862B1 (en) 2011-09-15 2011-09-15 Clock barrel assembly with reduced core diameter
US14/240,975 US9033573B2 (en) 2011-09-15 2012-09-13 Timepiece barrel assembly with reduced core diameter
RU2014114788/28A RU2559125C1 (en) 2011-09-15 2012-09-13 Barrel drum unit of clock mechanism having reduced diameter
EP12759423.2A EP2756360B1 (en) 2011-09-15 2012-09-13 Timepiece barrel assembly having a small core diameter
IN2738CHN2014 IN2014CN02738A (en) 2011-09-15 2012-09-13
JP2014530208A JP5702509B2 (en) 2011-09-15 2012-09-13 Watch barrel assembly with reduced core diameter
CN201280045269.0A CN103797425B (en) 2011-09-15 2012-09-13 There is the clockwork feed case assembly of the core diameters of reduction
PCT/EP2012/067913 WO2013037870A1 (en) 2011-09-15 2012-09-13 Timepiece barrel assembly having a small core diameter
HK14111175.8A HK1197840A1 (en) 2011-09-15 2014-11-04 Timepiece barrel assembly having a small core diameter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11181352.3A EP2570862B1 (en) 2011-09-15 2011-09-15 Clock barrel assembly with reduced core diameter

Publications (2)

Publication Number Publication Date
EP2570862A1 EP2570862A1 (en) 2013-03-20
EP2570862B1 true EP2570862B1 (en) 2014-03-05

Family

ID=46851979

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EP11181352.3A Active EP2570862B1 (en) 2011-09-15 2011-09-15 Clock barrel assembly with reduced core diameter
EP12759423.2A Active EP2756360B1 (en) 2011-09-15 2012-09-13 Timepiece barrel assembly having a small core diameter

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12759423.2A Active EP2756360B1 (en) 2011-09-15 2012-09-13 Timepiece barrel assembly having a small core diameter

Country Status (8)

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US (1) US9033573B2 (en)
EP (2) EP2570862B1 (en)
JP (1) JP5702509B2 (en)
CN (1) CN103797425B (en)
HK (1) HK1197840A1 (en)
IN (1) IN2014CN02738A (en)
RU (1) RU2559125C1 (en)
WO (1) WO2013037870A1 (en)

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EP2570861A1 (en) * 2011-09-15 2013-03-20 ETA SA Manufacture Horlogère Suisse Clock barrel assembly with reduced core diameter
EP2605087B1 (en) * 2011-12-13 2017-07-26 ETA SA Manufacture Horlogère Suisse Modular clock assembly with functional modules
CN108196438B (en) 2012-04-04 2020-09-08 劳力士有限公司 Shaft, spring, barrel including shaft and spring, timepiece movement, wristwatch and watch
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EP3499316B1 (en) * 2017-12-15 2024-08-07 Nivarox-FAR S.A. Barrel spring for a clock movement of a timepiece and method for manufacturing such a spring
EP3872576B1 (en) * 2020-02-25 2024-02-21 ETA SA Manufacture Horlogère Suisse Timepiece barrel with twisted arbor

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Also Published As

Publication number Publication date
JP5702509B2 (en) 2015-04-15
RU2559125C1 (en) 2015-08-10
JP2014526691A (en) 2014-10-06
WO2013037870A1 (en) 2013-03-21
HK1197840A1 (en) 2015-02-18
EP2756360A1 (en) 2014-07-23
EP2756360B1 (en) 2015-05-27
US20140211596A1 (en) 2014-07-31
US9033573B2 (en) 2015-05-19
CN103797425A (en) 2014-05-14
EP2570862A1 (en) 2013-03-20
IN2014CN02738A (en) 2015-07-03
CN103797425B (en) 2016-08-17

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