EP2746867A1 - Timepiece barrel - Google Patents

Timepiece barrel Download PDF

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Publication number
EP2746867A1
EP2746867A1 EP12197745.8A EP12197745A EP2746867A1 EP 2746867 A1 EP2746867 A1 EP 2746867A1 EP 12197745 A EP12197745 A EP 12197745A EP 2746867 A1 EP2746867 A1 EP 2746867A1
Authority
EP
European Patent Office
Prior art keywords
ratchet
drum
bridge
bearing
limited
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12197745.8A
Other languages
German (de)
French (fr)
Other versions
EP2746867B1 (en
Inventor
Laurent Kaelin
Arthur Queval
Martin Vautherot
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 Manufacture Horlogere Suisse SA
Original Assignee
ETA Manufacture Horlogere Suisse SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ETA Manufacture Horlogere Suisse SA filed Critical ETA Manufacture Horlogere Suisse SA
Priority to EP12197745.8A priority Critical patent/EP2746867B1/en
Priority to JP2015532475A priority patent/JP5918448B2/en
Priority to CN201380050570.5A priority patent/CN104685424B/en
Priority to PCT/EP2013/071918 priority patent/WO2014095123A1/en
Priority to US14/419,573 priority patent/US9471036B2/en
Publication of EP2746867A1 publication Critical patent/EP2746867A1/en
Priority to HK15111136.5A priority patent/HK1210525A1/en
Application granted granted Critical
Publication of EP2746867B1 publication Critical patent/EP2746867B1/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
    • 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
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor

Definitions

  • the invention relates to a watch cylinder for pivotally mounting between a plate and a bridge and comprising at least one spring housed between a pivoting drum and a cover and hung between at its outer end said drum and at its inner end a shaft which is integral in pivoting with a ratchet around a pivot axis.
  • the invention also relates to a watch movement, comprising at least one plate and a bridge and such a cylinder.
  • the invention also relates to a watch comprising such a movement.
  • the invention relates to the field of watch mechanisms, and more particularly the energy storage mechanisms, the engine barrel type, barrel striking, or the like.
  • a solution consists of in a decrease in the diameter of the barrel shaft and the associated core, 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.
  • the dimensioning should not be done lightly, indeed a risk of breakage exists if the bung diameter is too small.
  • 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.
  • the invention proposes to improve the design of barrels designed for a large power reserve, giving them good rigidity, particularly at the ratchet, while retaining a reduced number of components, and an acceptable machining cost, or, preferably, more economical than on known barrels.
  • the invention thus relates to a watch cylinder for pivotally mounting between a plate and a bridge and comprising at least one spring housed between a pivoting drum and a cover and hung between at its outer end said drum and at its inner end a shaft.
  • said barrel comprises a monobloc subassembly coaxial with said shaft and grouping said shaft and a core provided with a collar for limiting axial fretting.
  • said drum, said flange being carrying pivoting drive means for pivoting said ratchet which is axially free in the direction of said pivot axis.
  • said monobloc subassembly is pivoted at an upper bearing surface in a bore of said bridge or a stone that comprises said bridge, and comprises an upper shoulder, the stroke of which is limited by a lower surface of said bridge or said stone, said ratchet being between said upper shoulder and a lower shoulder that comprises said one-piece subassembly at said core, which lower shoulder limits the travel of an upper surface of said drum which drum pivots to level of a bore it comprises with a cylindrical surface of said core.
  • said lower shoulder is constituted by a lower bearing surface of said collar.
  • said collar separates said drum from said ratchet, and comprises an upper bearing surface for supporting a lower surface of said ratchet, and it carries said pivoting drive means. on the opposite side to that of said lower bearing surface and beyond said upper bearing surface.
  • the luffing of said drum is limited in lower support relative to said monobloc subassembly by an upper surface of said drum which is limited by a lower shoulder of said monobloc subassembly
  • the frolicking said ratchet is limited in lower support relative to said bridge, by an upper surface of said ratchet which is limited by a net or a lower surface of said bridge or a stone that includes said bridge
  • the fretting of said ratchet is limited in support higher relative to said monobloc subassembly by a lower surface of said ratchet which is limited by an upper bearing surface of a flange of said monobloc subassembly
  • the lug of said lid is limited in upper support relative to said platen , by a lower surface of said lid which is bounded by an upper surface of said plate or a stone that includes said plate.
  • the frage of said drum is limited in lower bearing relative to said monobloc subassembly by an upper surface of said drum which is limited by a lower shoulder of said monoblock subassembly
  • the frolicking said ratchet is limited in lower support relative to said bridge, by an upper surface of said ratchet which is limited by a net or a lower surface of said bridge or a stone that includes said bridge
  • the fretting of said ratchet is limited in support upper relative to said drum by a lower surface of said ratchet which is bounded by an upper surface of said drum
  • the lug of said lid is limited in upper support relative to said platen, by a lower surface of said lid which is bounded by a surface top of said platen or a stone that includes said platen.
  • said spring is made of a cobalt-nickel-chromium-based multiphase alloy comprising from 44 to 46% of cobalt, from 20 to 22% of nickel and from 17 to 19% of chromium. , from 4 to 6% of iron, from 3 to 5% of tungsten, from 3 to 5% of molybdenum, from 0 to 2% of titanium, from 0 to 1% of beryllium, and from Young's modulus of between 200 and 240 GPa and one shear modulus between 80 and 100 GPa, in said spring has a width / thickness ratio between 3 and 23, and the ratio between the maximum radius of a bearing surface of the spring of said shaft and the thickness of said spring is between 3 and 9.
  • the invention also relates to a watch movement, comprising at least one plate and a bridge and such a cylinder.
  • the invention also relates to a watch comprising such a movement.
  • the invention relates to the field of watch mechanisms, and more particularly the energy storage mechanisms, the engine barrel type, barrel striking, or the like.
  • the invention thus relates to a watch cylinder 1 for pivotally mounting between a plate 9 and a bridge 5, and comprising at least one spring 7.
  • This spring 7 is housed between a pivoting drum 6 and a cover 8, and hooked between, at its outer end the drum 6 and at its inner end a shaft 3.
  • the shaft 3 is pivotally integral with a ratchet 2 about a pivot axis D.
  • the barrel 1 comprises a monobloc subassembly 10 coaxial with the shaft 3 and comprising this shaft 3 and a core 4 provided with a collar 17 for limiting the axial frustum of the drum 6.
  • This flange 17 is carrying pivoting drive means 42, such as flat, square, or the like, for the pivoting drive of the ratchet 2, at the level of driving means 23.
  • This ratchet 2 is axially free in the direction of the pivot axis D.
  • This monobloc subassembly 10 is pivoted at an upper bearing surface 13 in a bore 51 of the bridge 5 or a stone 52 that the bridge 5 comprises, and has an upper shoulder 11 whose travel is limited by a surface lower 53 of the bridge 5 or the stone 52.
  • the ratchet 2 is between the upper shoulder 11 and a lower shoulder 12 that includes the one-piece subassembly 10 at the core 4.
  • This lower shoulder 12 limits the stroke of an upper surface 61 of the drum 6.
  • This drum 6 pivots at a bore 62 which it comprises with a cylindrical bearing surface 41 of the core 4.
  • this lower shoulder 12 is constituted by a lower bearing surface 16 of the flange 17.
  • the flange 17 separates the drum 6 from the ratchet 2, and has an upper bearing surface 15 for supporting the flange 17. a lower surface 22 of the ratchet 2. And this collar 17 carries the pivoting drive means 42 on the opposite side to that of the lower bearing surface 16 and beyond the upper bearing surface 15, on the opposite side. bridge 5.
  • the shaft 3 comprises a preferably cylindrical bearing surface 31, which is preferably of smaller diameter than that of the cylindrical bearing surface 41 of the core 4.
  • the shaft 3 carries the spring 7, or at its bearing surface 31, on which the spring 7 is immobilized by friction or welded, or on a hook 32 that includes the shaft 3 around such a bearing surface 31.
  • the shaft 3 is pivotally mounted in a bore 91 of the plate 9 or a stone 92 in a preferred embodiment, the bearing 31 extends, and constitutes the pivot surface in the bore 91 or 92 stone ..
  • the drum 6 carries a cover 8, preferably but not necessarily pivotally attached to the drum 6, and a bore 81 cooperates with a bearing 31 of the shaft 3.
  • a lower surface 82 of the cover 8 is limited in clearance by a surface upper 93 of the plate 9 or a stone 92 housed in the plate 9, a bore 91 of the plate 9 or the stone 92 serving as a pivot to the bearing 31 of the shaft 3.
  • the frolicking of the drum 6 is limited in lower support relative to the ratchet 2, by an upper surface 61 of the drum 6 which is limited by a lower shoulder 12 of the monobloc subassembly 10.
  • the fretting of the ratchet 2 is limited in lower bearing relative to the bridge 5, by an upper shoulder 11 of the monobloc subassembly 10 which is limited by a lower surface 53 of the bridge 5 or a stone 52 that includes the bridge 5 .
  • the frog of the cover 8 is limited in upper support relative to the plate 9, by a lower surface 82 of the cover 8 which is limited by an upper surface 93 of the plate 9 or a stone 91 that includes the plate 9.
  • the motor spring can be made of different materials: carbon steel, stainless steel, "Nivaflex®", silicon, DLC, quartz, glass, or similar.
  • the spring 7 is made of a cobalt-nickel-chromium-based multiphase alloy comprising from 44 to 46% of cobalt, from 20 to 22% of nickel, from 17 to 19% of chromium, from 4 to 6% of iron, 3 to 5% of tungsten, 3 to 5% of molybdenum, 0 to 2% of titanium, 0 to 1% of beryllium, and Young's modulus of between 200 and 240 GPa and a shear modulus between 80 and 100 GPa.
  • This spring 7 preferably has a width / thickness ratio of between 3 and 23, and more particularly between 9 and 21.
  • the maximum radius of the bearing 31 of the shaft 3 (without taking into account the possible extra thickness specific to a hook 32), made of steel or stainless steel, for example hardened stainless steel 4C27A (also named according to different standards 1.4197, ASTM 420F, or DIN X22 CrMoNiS 13 1), relative to the pivot axis D is less than nine times the maximum thickness of the spring 7.
  • the embodiments illustrated make it possible to obtain a ratio between the maximum radius the bearing 31 of the shaft 3 and the thickness of the spring 7 between 3 and 9, and preferably between 4 and 6, preferably close to five.
  • the first variant of the figure 1 is advantageous because the ratchet is free axially, and the flange on the shaft facilitates assembly.
  • the advantage of this construction is that there is no limit to the bung diameter.
  • the second variant of the figure 2 also includes an axially free ratchet, there is double recovery on the drum.
  • the bung diameter is limited by the dimensions of the drive means 42, typically a square or the like.
  • the invention also relates to a watch movement 100, comprising at least one plate 9 and a bridge 5 and such a cylinder 1.
  • the bridge 5 comprises at least one thread 54 intended to cooperate in support, with the least contact surface possible, with the upper surface 21 of the ratchet 2.
  • the invention also relates to a watch 200 comprising such a movement 100.

Abstract

The barrel (1) has a spring (7) accommodated between a drum (6) and a cover (8) and attached between the drum at its outer end and a shaft (3) at its inner end. The shaft is secured to pivot with a ratchet (2) around a pivot axis. A single-piece subset (10) is coaxial to the shaft and regroups the ratchet or/and a core (4). The core is provided with a flange (17) for limiting an axial clearance of the drum. The flange carries a driving unit (42) for freely and pivotingly driving the ratchet in axial manner according to the direction of the pivot axis. An independent claim is also included for a clockwork movement.

Description

Domaine de l'inventionField of the invention

L'invention concerne un barillet d'horlogerie pour montage pivotant entre une platine et un pont et comportant au moins un ressort logé entre un tambour pivotant et un couvercle et accroché entre, à son extrémité extérieure ledit tambour et à son extrémité intérieure un arbre lequel est solidaire en pivotement avec un rochet autour d'un axe de pivotement.The invention relates to a watch cylinder for pivotally mounting between a plate and a bridge and comprising at least one spring housed between a pivoting drum and a cover and hung between at its outer end said drum and at its inner end a shaft which is integral in pivoting with a ratchet around a pivot axis.

L'invention concerne encore un mouvement d'horlogerie, comportant au moins une platine et un pont et un tel barillet.The invention also relates to a watch movement, comprising at least one plate and a bridge and such a cylinder.

L'invention concerne encore une montre comportant un tel mouvement.The invention also relates to a watch comprising such a movement.

L'invention concerne le domaine des mécanismes d'horlogerie, et plus particulièrement les mécanismes de stockage d'énergie, du type barillet moteur, barillet de sonnerie, ou similaire.The invention relates to the field of watch mechanisms, and more particularly the energy storage mechanisms, the engine barrel type, barrel striking, or the like.

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, fixé à son extrémité intérieure sur une bonde constituée, ou bien par un arbre, généralement cylindrique, ou bien par un noyau plus massif, une solution consiste en une diminution du diamètre de l'arbre de barillet et du noyau associé, 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, fixed at its inner end to a bung, or by a generally cylindrical shaft, or by a more massive core, a solution consists of in a decrease in the diameter of the barrel shaft and the associated core, 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 si le diamètre de bonde est trop faible.The dimensioning should not be done lightly, indeed a risk of breakage exists if the bung diameter 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 conventional 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.

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.In particular, it is not enough to reduce all the sizing, because the sections of material are then insufficient to ensure fatigue resistance.

Il s'agit donc de concilier un diamètre d'arbre le plus réduit possible, pour autoriser la plus grande réserve de marche possible, et une rigidité de l'entraînement du rochet.It is therefore a question of reconciling a tree diameter as small as possible, to allow the greatest possible power reserve, and a rigidity of the ratchet drive.

Résumé de l'inventionSummary of the invention

L'invention se propose d'améliorer la conception de barillets conçus pour une grande réserve de marche, en leur procurant une bonne rigidité, notamment au niveau du rochet, tout en conservant un nombre de composants réduit, et un coût d'usinage acceptable, ou, de préférence, plus économique que sur les barillets connus.The invention proposes to improve the design of barrels designed for a large power reserve, giving them good rigidity, particularly at the ratchet, while retaining a reduced number of components, and an acceptable machining cost, or, preferably, more economical than on known barrels.

L'invention concerne ainsi un barillet d'horlogerie pour montage pivotant entre une platine et un pont et comportant au moins un ressort logé entre un tambour pivotant et un couvercle et accroché entre, à son extrémité extérieure ledit tambour et à son extrémité intérieure un arbre lequel est solidaire en pivotement avec un rochet autour d'un axe de pivotement, caractérisé en ce que ledit barillet comporte un sous-ensemble monobloc coaxial audit arbre et regroupant ledit arbre et un noyau muni d'une collerette de limitation de l'ébat axial dudit tambour, ladite collerette étant porteuse de moyens d'entraînement en pivotement pour l'entraînement en pivotement dudit rochet lequel est libre axialement selon la direction dudit axe de pivotement.The invention thus relates to a watch cylinder for pivotally mounting between a plate and a bridge and comprising at least one spring housed between a pivoting drum and a cover and hung between at its outer end said drum and at its inner end a shaft. which is integral in pivoting with a ratchet about a pivot axis, characterized in that said barrel comprises a monobloc subassembly coaxial with said shaft and grouping said shaft and a core provided with a collar for limiting axial fretting. said drum, said flange being carrying pivoting drive means for pivoting said ratchet which is axially free in the direction of said pivot axis.

Selon une caractéristique de l'invention, ledit sous-ensemble monobloc est pivoté au niveau d'une portée supérieure dans un alésage dudit pont ou d'une pierre que comporte ledit pont, et comporte un épaulement supérieur, dont la course est limitée par une surface inférieure dudit pont ou de ladite pierre, ledit rochet étant compris entre ledit épaulement supérieur et un épaulement inférieur que comporte ledit sous-ensemble monobloc au niveau dudit noyau, lequel épaulement inférieur limite la course d'une surface supérieure dudit tambour lequel tambour pivote au niveau d'un alésage qu'il comporte avec une portée cylindrique dudit noyau.According to a characteristic of the invention, said monobloc subassembly is pivoted at an upper bearing surface in a bore of said bridge or a stone that comprises said bridge, and comprises an upper shoulder, the stroke of which is limited by a lower surface of said bridge or said stone, said ratchet being between said upper shoulder and a lower shoulder that comprises said one-piece subassembly at said core, which lower shoulder limits the travel of an upper surface of said drum which drum pivots to level of a bore it comprises with a cylindrical surface of said core.

Selon une caractéristique de l'invention, ledit épaulement inférieur est constitué par une surface d'appui inférieure de ladite collerette.According to a characteristic of the invention, said lower shoulder is constituted by a lower bearing surface of said collar.

Selon une caractéristique de l'invention dans une première variante, ladite collerette sépare ledit tambour dudit rochet, et comporte une surface d'appui supérieure pour l'appui d'une surface inférieure dudit rochet, et elle porte lesdits moyens d'entraînement en pivotement du côté opposé à celui de ladite surface d'appui inférieure et au-delà de ladite surface d'appui supérieure.According to a feature of the invention in a first variant, said collar separates said drum from said ratchet, and comprises an upper bearing surface for supporting a lower surface of said ratchet, and it carries said pivoting drive means. on the opposite side to that of said lower bearing surface and beyond said upper bearing surface.

Selon une caractéristique de l'invention dans une première variante, l'ébat dudit tambour est limité en appui inférieur par rapport audit sous-ensemble monobloc par une surface supérieure dudit tambour qui est limitée par un épaulement inférieur dudit sous-ensemble monobloc, l'ébat dudit rochet est limité en appui inférieur par rapport audit pont, par une surface supérieure dudit rochet qui est limitée par un filet ou une surface inférieure dudit pont ou d'une pierre que comporte ledit pont, l'ébat dudit rochet est limité en appui supérieur par rapport audit sous-ensemble monobloc par une surface inférieure dudit rochet qui est limitée par une surface supérieure d'appui d'une collerette dudit sous-ensemble monobloc, et l'ébat dudit couvercle est limité en appui supérieur par rapport à ladite platine, par une surface inférieure dudit couvercle qui est limitée par une surface supérieure de ladite platine ou d'une pierre que comporte ladite platine.According to a characteristic of the invention in a first variant, the luffing of said drum is limited in lower support relative to said monobloc subassembly by an upper surface of said drum which is limited by a lower shoulder of said monobloc subassembly, the frolicking said ratchet is limited in lower support relative to said bridge, by an upper surface of said ratchet which is limited by a net or a lower surface of said bridge or a stone that includes said bridge, the fretting of said ratchet is limited in support higher relative to said monobloc subassembly by a lower surface of said ratchet which is limited by an upper bearing surface of a flange of said monobloc subassembly, and the lug of said lid is limited in upper support relative to said platen , by a lower surface of said lid which is bounded by an upper surface of said plate or a stone that includes said plate.

Selon une caractéristique de l'invention dans une deuxième variante, l'ébat dudit tambour est limité en appui inférieur par rapport audit sous-ensemble monobloc par une surface supérieure dudit tambour qui est limitée par un épaulement inférieur dudit sous-ensemble monobloc, l'ébat dudit rochet est limité en appui inférieur par rapport audit pont, par une surface supérieure dudit rochet qui est limitée par un filet ou une surface inférieure dudit pont ou d'une pierre que comporte ledit pont, l'ébat dudit rochet est limité en appui supérieur par rapport audit tambour par une surface inférieure dudit rochet qui est limitée par une surface supérieure dudit tambour, et l'ébat dudit couvercle est limité en appui supérieur par rapport à ladite platine, par une surface inférieure dudit couvercle qui est limitée par une surface supérieure de ladite platine ou d'une pierre que comporte ladite platine.According to a feature of the invention in a second variant, the frage of said drum is limited in lower bearing relative to said monobloc subassembly by an upper surface of said drum which is limited by a lower shoulder of said monoblock subassembly, the frolicking said ratchet is limited in lower support relative to said bridge, by an upper surface of said ratchet which is limited by a net or a lower surface of said bridge or a stone that includes said bridge, the fretting of said ratchet is limited in support upper relative to said drum by a lower surface of said ratchet which is bounded by an upper surface of said drum, and the lug of said lid is limited in upper support relative to said platen, by a lower surface of said lid which is bounded by a surface top of said platen or a stone that includes said platen.

Selon une autre caractéristique encore de l'invention, ledit ressort est réalisé dans un alliage multiphasé à base cobalt-nickel-chrome, comportant de 44 à 46% de cobalt, de 20 à 22% de nickel, de 17 à 19% de chrome, de 4 à 6% de fer, de 3 à 5% de tungstène, de 3 à 5% de molybdène, de 0 à 2% de titane, de 0 à 1% de béryllium, et de module d'Young compris entre 200 et 240 GPa et un module de cisaillement compris entre 80 et 100 GPa, en ledit ressort a un rapport largeur/épaisseur compris entre 3 et 23, et le rapport entre le rayon maximal d'une portée d'appui du ressort dudit arbre et l'épaisseur dudit ressort est compris entre 3 et 9.According to another characteristic of the invention, said spring is made of a cobalt-nickel-chromium-based multiphase alloy comprising from 44 to 46% of cobalt, from 20 to 22% of nickel and from 17 to 19% of chromium. , from 4 to 6% of iron, from 3 to 5% of tungsten, from 3 to 5% of molybdenum, from 0 to 2% of titanium, from 0 to 1% of beryllium, and from Young's modulus of between 200 and 240 GPa and one shear modulus between 80 and 100 GPa, in said spring has a width / thickness ratio between 3 and 23, and the ratio between the maximum radius of a bearing surface of the spring of said shaft and the thickness of said spring is between 3 and 9.

L'invention concerne encore un mouvement d'horlogerie, comportant au moins une platine et un pont et un tel barillet.The invention also relates to a watch movement, comprising at least one plate and a bridge and such a cylinder.

L'invention concerne encore une montre comportant un tel mouvement.The invention also relates to a watch comprising such a movement.

Description sommaire des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaîtront 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 par son axe de pivotement, un barillet selon une première variante de l'invention ;
  • la figure 2 représente, de façon schématisée et en coupe par son axe de pivotement, un barillet selon une deuxième variante de l'invention ;
  • la figure 3 représente, de façon schématisée en blocs, une pièce d'horlogerie comportant un mouvement comportant lui-même un barillet selon l'invention.
Other features and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which:
  • the figure 1 represents, schematically and in section through its pivot axis, a barrel according to a first variant of the invention;
  • the figure 2 represents, schematically and in section through its pivot axis, a cylinder according to a second variant of the invention;
  • the figure 3 represents, schematically in blocks, a timepiece comprising a movement comprising itself a cylinder according to the invention.

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

L'invention concerne le domaine des mécanismes d'horlogerie, et plus particulièrement les mécanismes de stockage d'énergie, du type barillet moteur, barillet de sonnerie, ou similaire.The invention relates to the field of watch mechanisms, and more particularly the energy storage mechanisms, the engine barrel type, barrel striking, or the like.

L'invention concerne ainsi un barillet d'horlogerie 1 pour montage pivotant entre une platine 9 et un pont 5, et comportant au moins un ressort 7. Ce ressort 7 est logé entre un tambour 6 pivotant et un couvercle 8, et accroché entre, à son extrémité extérieure le tambour 6 et à son extrémité intérieure un arbre 3. L'arbre 3 est solidaire en pivotement avec un rochet 2 autour d'un axe de pivotement D.The invention thus relates to a watch cylinder 1 for pivotally mounting between a plate 9 and a bridge 5, and comprising at least one spring 7. This spring 7 is housed between a pivoting drum 6 and a cover 8, and hooked between, at its outer end the drum 6 and at its inner end a shaft 3. The shaft 3 is pivotally integral with a ratchet 2 about a pivot axis D.

Selon l'invention, le barillet 1 comporte un sous-ensemble monobloc 10 coaxial à l'arbre 3 et regroupant cet arbre 3 et un noyau 4 muni d'une collerette 17 de limitation de l'ébat axial du tambour 6. Cette collerette 17 est porteuse de moyens d'entraînement en pivotement 42, tels que plats, carré, ou similaire, pour l'entraînement en pivotement du rochet 2, au niveau de moyens d'entraînement complémentaire 23. Ce rochet 2 est libre axialement selon la direction de l'axe de pivotement D.According to the invention, the barrel 1 comprises a monobloc subassembly 10 coaxial with the shaft 3 and comprising this shaft 3 and a core 4 provided with a collar 17 for limiting the axial frustum of the drum 6. This flange 17 is carrying pivoting drive means 42, such as flat, square, or the like, for the pivoting drive of the ratchet 2, at the level of driving means 23. This ratchet 2 is axially free in the direction of the pivot axis D.

Ce sous-ensemble monobloc 10 est pivoté au niveau d'une portée supérieure 13 dans un alésage 51 du pont 5 ou d'une pierre 52 que comporte le pont 5, et comporte un épaulement supérieur 11, dont la course est limitée par une surface inférieure 53 du pont 5 ou de la pierre 52. Le rochet 2 est compris entre l'épaulement supérieur 11 et un épaulement inférieur 12 que comporte le sous-ensemble monobloc 10 au niveau du noyau 4. Cet épaulement inférieur 12 limite la course d'une surface supérieure 61 du tambour 6. Ce tambour 6 pivote au niveau d'un alésage 62 qu'il comporte avec une portée cylindrique 41 du noyau 4.Dans la première variante de la figure 1, cet épaulement inférieur 12 est constitué par une surface d'appui inférieure 16 de la collerette 17. Dans cette même variante, la collerette 17 sépare le tambour 6 du rochet 2, et comporte une surface d'appui supérieure 15 pour l'appui d'une surface inférieure 22 du rochet 2. Et cette collerette 17 porte les moyens d'entraînement en pivotement 42 du côté opposé à celui de la surface d'appui inférieure 16 et au-delà de la surface d'appui supérieure 15, du côté du pont 5.This monobloc subassembly 10 is pivoted at an upper bearing surface 13 in a bore 51 of the bridge 5 or a stone 52 that the bridge 5 comprises, and has an upper shoulder 11 whose travel is limited by a surface lower 53 of the bridge 5 or the stone 52. The ratchet 2 is between the upper shoulder 11 and a lower shoulder 12 that includes the one-piece subassembly 10 at the core 4. This lower shoulder 12 limits the stroke of an upper surface 61 of the drum 6. This drum 6 pivots at a bore 62 which it comprises with a cylindrical bearing surface 41 of the core 4. In the first variant of the figure 1 , this lower shoulder 12 is constituted by a lower bearing surface 16 of the flange 17. In this same variant, the flange 17 separates the drum 6 from the ratchet 2, and has an upper bearing surface 15 for supporting the flange 17. a lower surface 22 of the ratchet 2. And this collar 17 carries the pivoting drive means 42 on the opposite side to that of the lower bearing surface 16 and beyond the upper bearing surface 15, on the opposite side. bridge 5.

L'arbre 3 comporte une portée 31 de préférence cylindrique, qui est de préférence de diamètre inférieur à celui de la portée cylindrique 41 du noyau 4. L'arbre 3 porte le ressort 7, ou bien au niveau de sa portée 31, sur laquelle le ressort 7 est immobilisé par friction ou soudé, ou bien sur un crochet 32 que comporte l'arbre 3 autour d'une telle portée 31. L'arbre 3 est monté pivotant dans un alésage 91 de la platine 9 ou d'une pierre 92 que comporte la platine 9. Dans uen réalisation préférée, la portée 31 se prolonge, et constitue la surface de pivotement dans cet alésage 91 ou cette pierre 92..The shaft 3 comprises a preferably cylindrical bearing surface 31, which is preferably of smaller diameter than that of the cylindrical bearing surface 41 of the core 4. The shaft 3 carries the spring 7, or at its bearing surface 31, on which the spring 7 is immobilized by friction or welded, or on a hook 32 that includes the shaft 3 around such a bearing surface 31. The shaft 3 is pivotally mounted in a bore 91 of the plate 9 or a stone 92 in a preferred embodiment, the bearing 31 extends, and constitutes the pivot surface in the bore 91 or 92 stone ..

Le tambour 6 porte un couvercle 8, de préférence mais non nécessairement solidaire en pivotement du tambour 6, et dont un alésage 81 coopère avec une portée 31 de l'arbre 3. Une surface inférieure 82 du couvercle 8 est limitée en débattement par une surface supérieure 93 de la platine 9 ou d'une pierre 92 logée dans la platine 9, un alésage 91 de la platine 9 ou de la pierre 92 servant de pivot à la portée 31 de l'arbre 3.The drum 6 carries a cover 8, preferably but not necessarily pivotally attached to the drum 6, and a bore 81 cooperates with a bearing 31 of the shaft 3. A lower surface 82 of the cover 8 is limited in clearance by a surface upper 93 of the plate 9 or a stone 92 housed in the plate 9, a bore 91 of the plate 9 or the stone 92 serving as a pivot to the bearing 31 of the shaft 3.

L'ébat du tambour 6 est limité en appui inférieur par rapport au rochet 2, par une surface supérieure 61 du tambour 6 qui est limitée par un épaulement inférieur 12 du sous-ensemble monobloc 10.The frolicking of the drum 6 is limited in lower support relative to the ratchet 2, by an upper surface 61 of the drum 6 which is limited by a lower shoulder 12 of the monobloc subassembly 10.

L'ébat du rochet 2 est limité en appui inférieur par rapport au pont 5, par un épaulement supérieur 11 du sous-ensemble monobloc 10 qui est limité par une surface inférieure 53 du pont 5 ou d'une pierre 52 que comporte le pont 5.The fretting of the ratchet 2 is limited in lower bearing relative to the bridge 5, by an upper shoulder 11 of the monobloc subassembly 10 which is limited by a lower surface 53 of the bridge 5 or a stone 52 that includes the bridge 5 .

L'ébat du couvercle 8 est limité en appui supérieur par rapport à la platine 9, par une surface inférieure 82 du couvercle 8 qui est limitée par une surface supérieure 93 de la platine 9 ou d'une pierre 91 que comporte la platine 9.The frog of the cover 8 is limited in upper support relative to the plate 9, by a lower surface 82 of the cover 8 which is limited by an upper surface 93 of the plate 9 or a stone 91 that includes the plate 9.

Le ressort moteur peut être réalisé en différents matériaux : acier au carbone, acier inoxydable, « Nivaflex® », silicium, DLC, quartz, verre, ou similaire. Dans une application particulière, le ressort 7 est réalisé dans un alliage multiphasé à base cobalt-nickel-chrome, comportant de 44 à 46% de cobalt, de 20 à 22% de nickel, de 17 à 19% de chrome, de 4 à 6% de fer, de 3 à 5% de tungstène, de 3 à 5% de molybdène, de 0 à 2% de titane, de 0 à 1% de béryllium, et de module d'Young compris entre 200 et 240 GPa et un module de cisaillement compris entre 80 et 100 GPa. Ce ressort 7 a de préférence un rapport largeur/épaisseur compris entre 3 et 23, et plus particulièrement entre 9 et 21.The motor spring can be made of different materials: carbon steel, stainless steel, "Nivaflex®", silicon, DLC, quartz, glass, or similar. In a particular application, the spring 7 is made of a cobalt-nickel-chromium-based multiphase alloy comprising from 44 to 46% of cobalt, from 20 to 22% of nickel, from 17 to 19% of chromium, from 4 to 6% of iron, 3 to 5% of tungsten, 3 to 5% of molybdenum, 0 to 2% of titanium, 0 to 1% of beryllium, and Young's modulus of between 200 and 240 GPa and a shear modulus between 80 and 100 GPa. This spring 7 preferably has a width / thickness ratio of between 3 and 23, and more particularly between 9 and 21.

Et le rayon maximal de la portée 31 de l'arbre 3 (sans tenir compte de la surépaisseur éventuelle propre à un crochet 32), réalisé en acier ou en acier inoxydable, par exemple en acier inoxydable trempable 4C27A (aussi dénommé selon les différentes normes 1.4197, ASTM 420F, ou DIN X22 CrMoNiS 13 1) , par rapport à l'axe de pivotement D est inférieur à neuf fois l'épaisseur maximale du ressort 7. En particulier les réalisations illustrées permettent d'obtenir un rapport entre le rayon maximal de la portée 31 de l'arbre 3 et l'épaisseur du ressort 7 compris entre 3 et 9, et de préférence entre 4 et 6, de préférence voisin de cinq.And the maximum radius of the bearing 31 of the shaft 3 (without taking into account the possible extra thickness specific to a hook 32), made of steel or stainless steel, for example hardened stainless steel 4C27A (also named according to different standards 1.4197, ASTM 420F, or DIN X22 CrMoNiS 13 1), relative to the pivot axis D is less than nine times the maximum thickness of the spring 7. In particular the embodiments illustrated make it possible to obtain a ratio between the maximum radius the bearing 31 of the shaft 3 and the thickness of the spring 7 between 3 and 9, and preferably between 4 and 6, preferably close to five.

Les figures 1 et 2 illustrent deux variantes préférées, mais non limitatives, qui sont exposées chacune en détail ci-après :The Figures 1 and 2 illustrate two preferred, but not limiting, variants, each of which is described in detail below:

Première variante de la figure 1 :

  • L'ébat du tambour 6 est limité en appui inférieur par rapport au sous-ensemble monobloc 10 par une surface supérieure 61 du tambour 6 qui est limitée par un épaulement inférieur 12 du sous-ensemble monobloc 10.
  • L'ébat du rochet 2 est limité en appui inférieur par rapport au pont 5, par une surface supérieure 21 du rochet 2 qui est limitée par un filet 54 ou une surface inférieure 53 du pont 5 ou d'une pierre 52 que comporte le pont 5.
  • L'ébat du rochet 2 est limité en appui supérieur par rapport au sous-ensemble monobloc 10 par une surface inférieure 22 du rochet 2 qui est limitée par une surface supérieure d'appui 15 d'une collerette 17 du sous-ensemble monobloc 10.
  • L'ébat du couvercle 8 est limité en appui supérieur par rapport à la platine 9, par une surface inférieure 82 du couvercle 8 qui est limitée par une surface supérieure 93 de la platine 9 ou d'une pierre 91 que comporte la platine 9.
First variant of the figure 1 :
  • The frolicking of the drum 6 is limited in lower bearing relative to the one-piece subassembly 10 by an upper surface 61 of the drum 6 which is limited by a lower shoulder 12 of the monobloc subassembly 10.
  • The fretting of the ratchet 2 is limited in lower support relative to the bridge 5, by an upper surface 21 of the ratchet 2 which is limited by a net 54 or a lower surface 53 of the bridge 5 or a stone 52 that includes the bridge 5.
  • The fretting of the ratchet 2 is limited in upper support relative to the one-piece subassembly 10 by a lower surface 22 of the ratchet 2 which is limited by an upper bearing surface 15 of a collar 17 of the monobloc subassembly 10.
  • The frog of the cover 8 is limited in upper support relative to the plate 9, by a lower surface 82 of the cover 8 which is limited by an upper surface 93 of the plate 9 or a stone 91 that includes the plate 9.

Deuxième variante de la figure 2:

  • L'ébat du tambour 6 est limité en appui inférieur par rapport au sous-ensemble monobloc 10 par une surface supérieure 61 du tambour 6 qui est limitée par un épaulement inférieur 12 du sous-ensemble monobloc 10.
  • L'ébat du rochet 2 est limité en appui inférieur par rapport au pont 5, par une surface supérieure 21 du rochet 2 qui est limitée par un filet 54 ou une surface inférieure 53 du pont 5 ou d'une pierre 52 que comporte le pont 5.
  • L'ébat du rochet 2 est limité en appui supérieur par rapport au tambour 6 par une surface inférieure 22 du rochet 2 qui est limitée par une surface supérieure 61 du tambour 6.
  • L'ébat du couvercle 8 est limité en appui supérieur par rapport à la platine 9, par une surface inférieure 82 du couvercle 8 qui est limitée par une surface supérieure 93 de la platine 9 ou d'une pierre 91 que comporte la platine.
Second variant of the figure 2 :
  • The frolicking of the drum 6 is limited in lower bearing relative to the one-piece subassembly 10 by an upper surface 61 of the drum 6 which is limited by a lower shoulder 12 of the monobloc subassembly 10.
  • The fretting of the ratchet 2 is limited in lower support relative to the bridge 5, by an upper surface 21 of the ratchet 2 which is limited by a net 54 or a lower surface 53 of the bridge 5 or a stone 52 that includes the bridge 5.
  • The fretting of the ratchet 2 is limited in upper support relative to the drum 6 by a lower surface 22 of the ratchet 2 which is limited by an upper surface 61 of the drum 6.
  • The frog of the cover 8 is limited in upper support relative to the plate 9, by a lower surface 82 of the cover 8 which is limited by an upper surface 93 of the plate 9 or a stone 91 that includes the plate.

En somme, la première variante de la figure 1 est avantageuse car le rochet est libre axialement, et la collerette sur l'arbre facilite le montage. L'avantage de cette construction est qu'il n'y a pas de limite au diamètre de bonde.In sum, the first variant of the figure 1 is advantageous because the ratchet is free axially, and the flange on the shaft facilitates assembly. The advantage of this construction is that there is no limit to the bung diameter.

La deuxième variante de la figure 2 comporte aussi un rochet libre axialement, il y a double reprise sur le tambour. Le diamètre de bonde est limité par les dimensions des moyens d'entraînement 42, typiquement un carré ou similaire.The second variant of the figure 2 also includes an axially free ratchet, there is double recovery on the drum. The bung diameter is limited by the dimensions of the drive means 42, typically a square or the like.

L'invention concerne encore un mouvement 100 d'horlogerie, comportant au moins une platine 9 et un pont 5 et un tel barillet 1. Avantageusement le pont 5 comporte au moins un filet 54 destiné à coopérer en appui, avec la moindre surface de contact possible, avec la surface supérieure 21 du rochet 2.The invention also relates to a watch movement 100, comprising at least one plate 9 and a bridge 5 and such a cylinder 1. Advantageously the bridge 5 comprises at least one thread 54 intended to cooperate in support, with the least contact surface possible, with the upper surface 21 of the ratchet 2.

L'invention concerne encore une montre 200 comportant un tel mouvement 100.The invention also relates to a watch 200 comprising such a movement 100.

Claims (12)

Barillet d'horlogerie (1) pour montage pivotant entre une platine (9) et un pont (5) et comportant au moins un ressort (7) logé entre un tambour (6) pivotant et un couvercle (8) et accroché entre, à son extrémité extérieure ledit tambour (6) et à son extrémité intérieure un arbre (3) lequel est solidaire en pivotement avec un rochet (2) autour d'un axe de pivotement (D), caractérisé en ce que ledit barillet (1) comporte un sous-ensemble monobloc (10) coaxial audit arbre (3) et regroupant ledit arbre (3) et un noyau (4) muni d'une collerette (17) de limitation de l'ébat axial dudit tambour (6), ladite collerette (17) étant porteuse de moyens d'entraînement en pivotement (42) pour l'entraînement en pivotement dudit rochet (2) lequel est libre axialement selon la direction dudit axe de pivotement (D).Timepiece barrel (1) for pivotable mounting between a plate (9) and a bridge (5) and comprising at least one spring (7) housed between a pivoting drum (6) and a cover (8) and hung between, to its outer end said drum (6) and at its inner end a shaft (3) which is pivotally integral with a ratchet (2) about a pivot axis (D), characterized in that said barrel (1) comprises a monobloc subassembly (10) coaxial with said shaft (3) and grouping said shaft (3) and a core (4) provided with a flange (17) for limiting the axial frustum of said drum (6), said flange (17) carrying pivoting drive means (42) for pivoting said ratchet (2) which is axially free in the direction of said pivot axis (D). Barillet (1) selon la revendication 1, caractérisé en ce que ledit sous-ensemble monobloc (10) est pivoté au niveau d'une portée supérieure (13) dans un alésage (51) dudit pont (5) ou d'une pierre (52) que comporte ledit pont (5), et comporte un épaulement supérieur (11), dont la course est limitée par une surface inférieure (53) dudit pont (5) ou de ladite pierre (52), ledit rochet (2) étant compris entre ledit épaulement supérieur (11) et un épaulement inférieur (12) que comporte ledit sous-ensemble monobloc (10) au niveau dudit noyau (4), lequel épaulement inférieur (12) limite la course d'une surface supérieure (61) dudit tambour (6) lequel tambour (6) pivote au niveau d'un alésage (62) qu'il comporte avec une portée cylindrique (41) dudit noyau (4).Barrel (1) according to claim 1, characterized in that said one-piece subassembly (10) is pivoted at an upper bearing surface (13) in a bore (51) of said bridge (5) or a stone ( 52) which comprises said bridge (5), and comprises an upper shoulder (11), whose travel is limited by a lower surface (53) of said bridge (5) or said stone (52), said ratchet (2) being included between said upper shoulder (11) and a lower shoulder (12) that includes said one-piece subassembly (10) at said core (4), which lower shoulder (12) limits the travel of an upper surface (61) said drum (6) which drum (6) pivots at a bore (62) which it has with a cylindrical bearing (41) of said core (4). Barillet (1) selon la revendication 2, caractérisé en ce que ledit épaulement inférieur (12) est constitué par une surface d'appui inférieure (16) de ladite collerette (17).Barrel (1) according to claim 2, characterized in that said lower shoulder (12) is constituted by a lower bearing surface (16) of said flange (17). Barillet (1) selon la revendication 3, caractérisé en ce que ladite collerette (17) sépare ledit tambour (6) dudit rochet (2), et comporte une surface d'appui supérieure (15) pour l'appui d'une surface inférieure (22) dudit rochet (2), et en ce qu'elle porte lesdits moyens d'entraînement en pivotement (42) du côté opposé à celui de ladite surface d'appui inférieure (16) et au-delà de ladite surface d'appui supérieure (15).Barrel (1) according to claim 3, characterized in that said collar (17) separates said drum (6) from said ratchet (2), and has an upper bearing surface (15) for supporting a lower surface (22) of said ratchet (2), and in that it carries said pivot drive means (42) on the side opposite to that of said lower bearing surface (16) and beyond said surface of said upper support (15). Barillet (1) selon la revendication 2, caractérisé en ce que ledit arbre (3) comporte une portée (31) qui est de diamètre inférieur à celui de ladite portée cylindrique (41) dudit noyau (4), et porte ledit ressort (7), ou bien au niveau de ladite portée (31) sur laquelle ledit ressort (7) est immobilisé par friction ou soudé, ou bien sur un crochet (32) que comporte ledit arbre (3) autour de ladite portée (31), et en ce que ladite portée (31) est pivotante dans un alésage (91) de ladite platine (9) ou d'une pierre (92) que comporte ladite platine (9).Barrel (1) according to claim 2, characterized in that said shaft (3) has a bearing (31) which is smaller in diameter than said span cylindrical (41) of said core (4), and carries said spring (7), or at said bearing (31) on which said spring (7) is immobilized by friction or welded, or on a hook (32) said shaft (3) comprises around said bearing surface (31), and in that said bearing surface (31) is pivotable in a bore (91) of said plate (9) or of a stone (92) that comprises said plate (9). Barillet (1) selon l'une des revendications précédentes, caractérisé en ce que ledit tambour (6) porte un couvercle (8) solidaire en pivotement dudit tambour (6) et dont un alésage (81) coopère avec une portée (31) dudit arbre (3), et en ce qu'une surface inférieure (82) dudit couvercle (8) est limitée en débattement par une surface supérieure (93) de ladite platine (9) ou d'une pierre (92) logée dans ladite platine (9), un alésage (91) de ladite platine (9) ou de ladite pierre (92) servant de pivot à ladite portée (31) dudit arbre (3).Barrel (1) according to one of the preceding claims, characterized in that said drum (6) carries a lid (8) integral in pivoting said drum (6) and a bore (81) cooperates with a bearing (31) of said shaft (3), and in that a lower surface (82) of said cover (8) is limited in deflection by an upper surface (93) of said plate (9) or a stone (92) housed in said plate (9), a bore (91) of said plate (9) or said stone (92) serving as a pivot to said bearing (31) of said shaft (3). Barillet (1) selon l'une des revendications 1 à 5, caractérisé en ce que l'ébat dudit tambour (6) est limité en appui inférieur par rapport audit sous-ensemble monobloc (10) par une surface supérieure (61) dudit tambour (6) qui est limitée par un épaulement inférieur (12) dudit sous-ensemble monobloc (10), en ce que l'ébat dudit rochet (2) est limité en appui inférieur par rapport audit pont (5), par une surface supérieure (21) dudit rochet (2) qui est limitée par un filet (54) ou une surface inférieure (53) dudit pont (5) ou d'une pierre (52) que comporte ledit pont (5), en ce que l'ébat dudit rochet (2) est limité en appui supérieur par rapport audit sous-ensemble monobloc (10) par une surface inférieure (22) dudit rochet (2) qui est limitée par une surface supérieure d'appui (15) d'une collerette (17) dudit sous-ensemble monobloc (10), et en ce que l'ébat dudit couvercle (8) est limité en appui supérieur par rapport à ladite platine (9), par une surface inférieure (82) dudit couvercle (8) qui est limitée par une surface supérieure (93) de ladite platine (9) ou d'une pierre (91) que comporte ladite platine.Barrel (1) according to one of claims 1 to 5, characterized in that the frost of said drum (6) is limited in lower bearing relative to said one-piece subassembly (10) by an upper surface (61) of said drum (6) which is bounded by a lower shoulder (12) of said one-piece subassembly (10), in that the lug of said ratchet (2) is limited in lower bearing relative to said bridge (5) by an upper surface (21) of said ratchet (2) which is bounded by a net (54) or bottom surface (53) of said bridge (5) or a stone (52) of said bridge (5), in that the pry of said ratchet (2) is limited in upper support relative to said one-piece subassembly (10) by a lower surface (22) of said ratchet (2) which is bounded by an upper bearing surface (15) of a flange (17) of said one-piece subassembly (10), and in that the frosting of said lid (8) is limited in upper support relative to said plate (9), by a lower surface the upper (82) of said cover (8) which is bounded by an upper surface (93) of said platen (9) or a stone (91) that includes said platen. Barillet (1) selon l'une des revendications 1 à 5, caractérisé en ce que l'ébat dudit tambour (6) est limité en appui inférieur par rapport audit sous-ensemble monobloc (10) par une surface supérieure (61) dudit tambour (6) qui est limitée par un épaulement inférieur (12) dudit sous-ensemble monobloc (10), en ce que l'ébat dudit rochet (2) est limité en appui inférieur par rapport audit pont (5), par une surface supérieure (21) dudit rochet (2) qui est limitée par un filet (54) ou une surface inférieure (53) dudit pont (5) ou d'une pierre (52) que comporte ledit pont (5), en ce que l'ébat dudit rochet (2) est limité en appui supérieur par rapport audit tambour (6) par une surface inférieure (22) dudit rochet (2) qui est limitée par une surface supérieure (61) dudit tambour (6), et en ce que l'ébat dudit couvercle (8) est limité en appui supérieur par rapport à ladite platine (9), par une surface inférieure (82) dudit couvercle (8) qui est limitée par une surface supérieure (93) de ladite platine (9) ou d'une pierre (91) que comporte ladite platine.Barrel (1) according to one of claims 1 to 5, characterized in that the frost of said drum (6) is limited in lower bearing relative to said one-piece subassembly (10) by an upper surface (61) of said drum (6) which is bounded by a lower shoulder (12) of said one-piece subassembly (10), in that the lug of said ratchet (2) is limited in lower bearing relative to said bridge (5) by an upper surface (21) of said ratchet (2) which is limited by a thread (54) or a bottom surface (53) of said bridge (5) or one stone (52) included in said bridge (5), in that the pry of said ratchet (2) is limited in upper support compared said drum (6) is provided by a lower surface (22) of said ratchet (2) which is bounded by an upper surface (61) of said drum (6), and that the lug of said lid (8) is limited in upper support relative to said platen (9), by a lower surface (82) of said cover (8) which is bounded by an upper surface (93) of said platen (9) or a stone (91) that includes said platen. Barillet (1) selon l'une des revendications précédentes, caractérisé en ce que ledit ressort (7) est réalisé dans un alliage multiphasé à base cobalt-nickel-chrome, comportant de 44 à 46% de cobalt, de 20 à 22% de nickel, de 17 à 19% de chrome, de 4 à 6% de fer, de 3 à 5% de tungstène, de 3 à 5% de molybdène, de 0 à 2% de titane, de 0 à 1% de béryllium, et de module d'Young compris entre 200 et 240 GPa et un module de cisaillement compris entre 80 et 100 GPa, en ce que ledit ressort (7) a un rapport largeur/épaisseur compris entre 3 et 23, et en ce que le rapport entre le rayon maximal d'une portée (31) d'appui du ressort dudit arbre (3) et l'épaisseur dudit ressort (7) est compris entre 3 et 9.Barrel (1) according to one of the preceding claims, characterized in that said spring (7) is made of a cobalt-nickel-chromium-based multiphase alloy comprising from 44 to 46% of cobalt, from 20 to 22% of nickel, 17 to 19% chromium, 4 to 6% iron, 3 to 5% tungsten, 3 to 5% molybdenum, 0 to 2% titanium, 0 to 1% beryllium, and a Young's modulus of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, in that said spring (7) has a width / thickness ratio of between 3 and 23, and that the ratio between the maximum radius of a bearing surface (31) of the spring of said shaft (3) and the thickness of said spring (7) is between 3 and 9. Mouvement (100) d'horlogerie, comportant au moins une platine (9) et un pont (5) et un barillet (1) selon l'une des revendications précédentes.Movement (100) watchmaking, comprising at least one plate (9) and a bridge (5) and a cylinder (1) according to one of the preceding claims. Mouvement (100) selon la revendication précédente, caractérisé en ce que ledit pont (5) comporte au moins un filet (54) destiné à coopérer en appui, avec la moindre surface de contact possible, avec la surface supérieure (21) dudit rochet (2).Movement (100) according to the preceding claim, characterized in that said bridge (5) comprises at least one thread (54) intended to cooperate in bearing, with the least possible contact surface, with the upper surface (21) of said ratchet ( 2). Montre (200) comportant un mouvement (100) selon la revendication 10 ou 11.Watch (200) having a movement (100) according to claim 10 or 11.
EP12197745.8A 2012-12-18 2012-12-18 Timepiece barrel Active EP2746867B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP12197745.8A EP2746867B1 (en) 2012-12-18 2012-12-18 Timepiece barrel
JP2015532475A JP5918448B2 (en) 2012-12-18 2013-10-21 Timer barrel
CN201380050570.5A CN104685424B (en) 2012-12-18 2013-10-21 Clockwork feed box
PCT/EP2013/071918 WO2014095123A1 (en) 2012-12-18 2013-10-21 Timepiece barrel
US14/419,573 US9471036B2 (en) 2012-12-18 2013-10-21 Timepiece barrel
HK15111136.5A HK1210525A1 (en) 2012-12-18 2015-11-11 Timepiece barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12197745.8A EP2746867B1 (en) 2012-12-18 2012-12-18 Timepiece barrel

Publications (2)

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EP2746867A1 true EP2746867A1 (en) 2014-06-25
EP2746867B1 EP2746867B1 (en) 2015-12-16

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EP12197745.8A Active EP2746867B1 (en) 2012-12-18 2012-12-18 Timepiece barrel

Country Status (6)

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US (1) US9471036B2 (en)
EP (1) EP2746867B1 (en)
JP (1) JP5918448B2 (en)
CN (1) CN104685424B (en)
HK (1) HK1210525A1 (en)
WO (1) WO2014095123A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH711870B1 (en) * 2015-12-10 2019-08-30 Parmigiani Fleurier S A Watch movement.

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US165831A (en) * 1875-07-20 Improvement in barrel-arbors for watches
US804728A (en) * 1905-03-25 1905-11-14 Illinois Watch Company Watch-barrel.
US996499A (en) * 1910-11-25 1911-06-27 Robert L Marshall Safety spring-barrel.
CH83330A (en) * 1919-05-26 1919-12-01 Co Beaulieu Watch Watch movement
GB647819A (en) * 1944-12-12 1950-12-20 Elgin Nat Watch Co Cobalt chromium nickel base alloy
FR1034443A (en) * 1950-04-01 1953-07-23 Stainless steel watch spring with high resistance to fatigue and method for its manufacture
CH295135A (en) * 1951-11-16 1953-12-15 Ag Brac Clockwork.

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JPS5251973A (en) * 1976-10-18 1977-04-26 Ebauchesfabrik Eta Ag Drawable incense casket core
JP3041585B2 (en) * 1995-04-28 2000-05-15 セイコーインスツルメンツ株式会社 Mainspring manufacturing method
CH702035B1 (en) * 2006-10-20 2011-04-29 Eterna Sa Fabrique D Horlogerie Timepiece.
CH699988A2 (en) * 2008-11-28 2010-05-31 Patek Philippe Sa Geneve Driving member for watch movement.
CH700058B1 (en) * 2008-12-15 2013-09-13 Francois Durafourg Assembly including a winding ratchet attached to a barrel arbor and barrel shaft for this set.
EP2570864B1 (en) * 2011-09-15 2018-11-14 Blancpain S.A. Clock barrel with reduced core diameter

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Publication number Priority date Publication date Assignee Title
US165831A (en) * 1875-07-20 Improvement in barrel-arbors for watches
US804728A (en) * 1905-03-25 1905-11-14 Illinois Watch Company Watch-barrel.
US996499A (en) * 1910-11-25 1911-06-27 Robert L Marshall Safety spring-barrel.
CH83330A (en) * 1919-05-26 1919-12-01 Co Beaulieu Watch Watch movement
GB647819A (en) * 1944-12-12 1950-12-20 Elgin Nat Watch Co Cobalt chromium nickel base alloy
FR1034443A (en) * 1950-04-01 1953-07-23 Stainless steel watch spring with high resistance to fatigue and method for its manufacture
CH295135A (en) * 1951-11-16 1953-12-15 Ag Brac Clockwork.

Also Published As

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US20150220059A1 (en) 2015-08-06
US9471036B2 (en) 2016-10-18
CN104685424B (en) 2017-03-08
WO2014095123A1 (en) 2014-06-26
CN104685424A (en) 2015-06-03
JP2015529339A (en) 2015-10-05
JP5918448B2 (en) 2016-05-18
EP2746867B1 (en) 2015-12-16
HK1210525A1 (en) 2016-04-22

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