EP2746865B1 - Timepiece barrel - Google Patents

Timepiece barrel Download PDF

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Publication number
EP2746865B1
EP2746865B1 EP12197741.7A EP12197741A EP2746865B1 EP 2746865 B1 EP2746865 B1 EP 2746865B1 EP 12197741 A EP12197741 A EP 12197741A EP 2746865 B1 EP2746865 B1 EP 2746865B1
Authority
EP
European Patent Office
Prior art keywords
bore
barrel
plate
drum
spring
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
EP12197741.7A
Other languages
German (de)
French (fr)
Other versions
EP2746865A1 (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 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 EP12197741.7A priority Critical patent/EP2746865B1/en
Application filed by ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to RU2015129573A priority patent/RU2629155C2/en
Priority to PCT/EP2013/071988 priority patent/WO2014095125A1/en
Priority to CN201380066012.8A priority patent/CN104871094B/en
Priority to JP2015537294A priority patent/JP5960923B2/en
Priority to US14/428,079 priority patent/US9367037B2/en
Publication of EP2746865A1 publication Critical patent/EP2746865A1/en
Priority to HK16101508.5A priority patent/HK1213644A1/en
Application granted granted Critical
Publication of EP2746865B1 publication Critical patent/EP2746865B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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, said plate comprising a first bore or a first stone comprising said first bore, said plate or said first stone having an upper surface facing said bridge, and said bridge comprising a second bore or a second stone comprising said second bore, said bridge or said second stone having a lower surface facing said plate, said barrel comprising at least one spring housed between a pivoting drum and a cover and hung between, to its outer end said drum and at its inner end a shaft which is pivotally integral with a ratchet about a pivot axis, said cylinder having a monobloc sub-assembly coaxial with said shaft and grouping around a core, at least said ratchet and / or said shaft.
  • 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 document US 804,728 TO JOHNSON describes a barrel whose shaft carries a threaded hub, which itself carries a barrel spring. Two components are thus necessary for the internal maintenance of the spring.
  • the barrel drum is guided by a stone that is not monoblock with the tree.
  • the reset ratchet is located on the other side of the barrel bridge.
  • the carrying portion of the drive square of the ratchet is not constituted by a flange, but by the end of the shaft which is projecting beyond the bridge, the side opposite the drum.
  • the document FR 2 329 000 A1 in the name of ETA describes a barrel with a shaft with non-cylindrical barrel, the snap hook of the spring being contained in a recess delimited by a geometric cylinder defined by the upper and lower surfaces of this barrel.
  • the document CH 83 330 A BEAULIEU WATCH CO describes a barrel without lid, including a bung screwed on a tree.
  • the drum is adjusted crazy on the shaft, between a bearing of the tree and the bung.
  • the internal maintenance of the spring requires two components.
  • the document FR 2 210 784 A1 in the name of ETA describes a cylinder with a shaft having longitudinal latching grooves of the spring.
  • the document CH 15 286 A in the name of DANASINO, published in 1898, describes a barrel with a smooth shaft carrying a hollow rocket with a ratchet.
  • This hollow rocket has two spans receiving drum and cover.
  • the mainspring has a gradually increasing section from its outer end to its inner end.
  • the document EP 2 570 864 A1 in the name of BLANCPAIN describes a barrel with a bung which successively comprises means for fixing a ratchet, and / or a first pivoting surface in a plate, a drum pivoting surface, a projecting flange relative to this scope and pressing on an inner face of the drum towards the spring, radially recessed with respect to the collar, a receiving surface of the spring, then recessed radially with respect to the latter, a pivoting surface of a cylinder closure cover , and a second pivot range in a platen.
  • 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 according to claim 1.
  • 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, 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 a 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 the thickness of said spring is between 3 and 9.
  • the invention further relates to a clockwork movement, comprising at least one plate and a bridge, according to claim 8.
  • 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, around a core 4, at least the ratchet 2 or / and the shaft 3.
  • 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.
  • the shaft 3 comprises a preferably cylindrical surface 31, which is preferably of smaller diameter than that of the cylindrical 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 scope 31 is extended, 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 5.
  • FIG. 3 illustrates the invention
  • Figures 1 and 2 illustrate embodiments that are not part of the claimed invention, each of which is set out in detail below:
  • the barrel 1 comprises a monobloc subassembly 10 comprising a ratchet 2, a shaft 3, and a core 4, under a bridge 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 of the bridge 5, and it comprises an upper shoulder 11 whose travel is limited by the lower surface. 53 of this bridge 5 or stone 52.
  • the ratchet 2 is between this upper shoulder 11 and a lower shoulder 12 of the monobloc subassembly 10 at the core 4.
  • This lower shoulder 12 limits the travel of an upper surface 61 of a drum 6. While the drum 6 pivots at a bore 62 with a cylindrical bearing surface 41 of the core 4.
  • the shaft 3 is of smaller diameter than that of the core 4, and carries a hook 32 for the internal hooking of a spring 7, or it carries this spring 7 directly at a bearing surface 31 on which this spring 7 is fixed by friction or welding, or whatever.
  • the drum 6 carries a lid 8 integral with the drum 6 and a bore 81 cooperates with a bearing 31 of the shaft 3.
  • a lower surface 82 of this cover 8 is limited in movement by the upper surface 93 of a plate 9 or a stone 92 housed in a plate 9.
  • the bore 91 of this plate 9 or of this stone 92 serves as a pivot at the reach 31 of the shaft 3.
  • the one-piece subassembly 10 comprises a bearing 41 of the core 4, which is pivotable, in a bore 62 of the drum 6 also pivotally mounted.
  • the monobloc subassembly 10 comprises a bearing 31 of the shaft 3, which is pivotable in a bore 81 of the cover 8 also pivotally mounted.
  • the monobloc subassembly 10 comprises at its upper part, above the ratchet 2, a bearing surface 13, which is pivotable in a bore 51 of the bridge 5, or if appropriate the stone 52 of the bridge 5 which is fixed.
  • the one-piece subassembly 10 has at its bottom part, below the cover 8, a bearing surface 31 of the shaft 3, which is pivotable in a bore 91 of the plate 9, or, if appropriate, of the stone 92 of the platinum 9 which is fixed.
  • the frolicking of the drum 6 is limited in lower bearing relative to the ratchet 2, by the upper surface 61 of the drum 6 which is limited by the lower shoulder 12 of the monoblock subassembly 10, which is equivalent to the lower support of the ratchet 2.
  • the fretting of the ratchet 2 is limited in lower support relative to the bridge 5, by the upper shoulder 11 of the monobloc subassembly 10 which is limited by the lower surface 53 of the bridge 5 or stone 52.
  • the frog of the cover 8 is limited in upper support relative to the plate 9, by the lower surface 82 of the cover 8 which is limited by the upper surface 93 of the plate 9 or the stone 91.
  • the bung diameter is not limited by anything other than the resistance of the material to the shear forces, the diameter of the shaft 3 either, which allows the realization of a very small shaft diameter, and the obtaining a very favorable K factor.
  • the barrel 1 comprises a monobloc subassembly 10 gathering a shaft 3, and a core 4, under a bridge 5.
  • This monobloc subassembly 10 receives, bearing on a shoulder 15, a ratchet 2, which is then crimped at the a rivet 16 of the core 4, to become integral in pivoting of this monobloc subassembly 10.
  • This monobloc subassembly 10 is pivoted at an upper bearing surface 13 in a bore 51 of the bridge 5 or a stone 52 of the bridge 5, and the core 4 comprises an upper shoulder 11, whose stroke is limited by the lower surface 53 of this bridge 5 or of this stone 52.
  • the ratchet 2 is between this upper shoulder 11 and a lower shoulder 12 of the core 4 of the monobloc subassembly 10.
  • This lower shoulder 12 limits the travel of an upper surface 61 of a drum 6. While the drum 6 pivots at a bore 62 with a cylindrical bearing surface 41 of the core 4.
  • the shaft 3 is of smaller diameter than that of the core 4, and carries a hook 32 for the internal hooking of a spring 7, or it carries this spring 7 directly at a bearing surface 31 on which this spring 7 is fixed by friction or welding, or whatever.
  • the drum 6 carries a lid 8 integral with the drum 6 and a bore 81 cooperates with a bearing 31 of the shaft 3.
  • a lower surface 82 of this cover 8 is limited in movement by the upper surface 93 of a plate 9 or a stone 92 housed in a plate 9.
  • the bore 91 of this plate 9 or of this stone 92 serves as a pivot at the reach 31 of the shaft 3.
  • the one-piece subassembly 10 comprises a bearing 41 of the core 4, which is pivotable, in a bore 62 of the drum 6 also pivotally mounted.
  • the monobloc subassembly 10 comprises a bearing 31 of the shaft 3, which is pivotable in a bore 81 of the cover 8 also pivotally mounted.
  • the one-piece subassembly 10 comprises at its upper part, above the ratchet 2, a bearing surface 13, which is pivotable in a bore 51 of the bridge 5, or the stone 52 of the bridge 5 which is fixed.
  • the one-piece subassembly 10 has at its bottom part, below the cover 8, a bearing 31 of the shaft 3, which is pivotable in a bore 91 of the plate 9 or the stone 92 of the plate 9 which is fixed.
  • the frolicking of the drum 6 is limited in lower bearing relative to the core 4, by the upper surface 61 of the drum 6 which is limited by the lower shoulder 12 of the core 4 of the monobloc subassembly 10.
  • the fretting of the core 4 is limited in lower support relative to the bridge 5, by the upper shoulder 11 of the core 4 which is limited by the lower surface 53 of the bridge 5 or the stone 52.
  • the frog of the cover 8 is limited in upper support relative to the plate 9, by the lower surface 82 of the cover 8 which is limited by the upper surface 93 of the plate 9 or the stone 91.
  • the diameter of the core at the drum is not limited by anything other than the strength of the material shear forces, the diameter of the shaft 3 either, which allows the realization of a very small shaft diameter , and obtaining a very favorable K factor.
  • the barrel 1 comprises a monobloc subassembly 10 including a ratchet 2 and a core 4, under a bridge 5.
  • the core 4 defines at its inner part a gun, which has an outer bearing 41 and a housing or a bore 45 in which is driven a shaft 3, which thus becomes pivotally integral with the core 4.
  • the shaft 3 can thus be very simple, in particular with a single cylindrical bearing surface 31, and the machining of a hook 32 is then easy and economical.
  • This monobloc subassembly 10 is pivoted at an upper bearing surface 13 in a bore 51 of the bridge 5 or a stone 52 of the bridge 5, and it comprises an upper shoulder 11 whose travel is limited by the lower surface. 53 of this bridge 5 or stone 52.
  • the ratchet 2 is between this upper shoulder 11 and a lower shoulder 12 of the monobloc subassembly 10, which is adjacent to the barrel of the core 4 and its cylindrical bearing 41.
  • This lower shoulder 12 limits the travel of an upper surface 61 of a drum 6. While the drum 6 pivots at a bore 62 with a cylindrical bearing surface 41 of the core 4.
  • the shaft 3 is of smaller diameter than that of the core 4, and carries a hook 32 for the internal hooking of a spring 7, or it carries this spring 7 directly at a bearing surface 31 on which this spring 7 is fixed by friction or welding, or whatever.
  • the drum 6 carries a lid 8 integral with the drum 6 and a bore 81 cooperates with a bearing 31 of the shaft 3.
  • a lower surface 82 of this cover 8 is limited in movement by the upper surface 93 of a plate 9 or a stone 92 housed in a plate 9.
  • the bore 91 of this plate 9 or of this stone 92 serves as a pivot at the reach 31 of the shaft 3.
  • the one-piece subassembly 10 comprises a bearing 41 of the core 4, which is pivotable, in a bore 62 of the drum 6 also pivotally mounted.
  • the shaft 3 comprises a bearing 31 which is pivotable in a bore 81 of the cover 8 also pivotally mounted.
  • the one-piece subassembly 10 comprises at its upper part, above the ratchet 2, a bearing surface 13, which is pivotable in a bore 51 of the bridge 5 or the stone 52 of the bridge 5 which is fixed.
  • the shaft 3 comprises at its lower part, below the cover 8, a bearing 31 which is pivotable in a bore 91 of the plate 9 or the stone 92 of the plate 9 which is fixed.
  • the frolicking of the drum 6 is limited in lower bearing relative to the ratchet 2, by the upper surface 61 of the drum 6 which is limited by the lower shoulder 12 of the monoblock subassembly 10, which is equivalent to the lower support of the ratchet 2.
  • the fretting of the ratchet 2 is limited in lower bearing relative to the bridge 5, by the upper shoulder 11 of the monobloc subassembly 10 which is limited by the lower surface 53 of the bridge 5 or the stone 52.
  • the frog of the cover 8 is limited in upper support relative to the plate 9, by the lower surface 82 of the cover 8 which is limited by the upper surface 93 of the plate 9 or the stone 91.
  • the diameter of the core is not limited by anything other than the resistance of the material to the shear forces, the diameter of the shaft 3 either, which allows the realization of a very small diameter of tree, and obtaining a very favorable K factor.
  • the shaft 3 has a threaded end which cooperates with a tapping which comprises the core 4 in the barrel, and which then replaces the bore 45.
  • the first realization of the figure 1 is advantageous because the subassembly 10 monoblock under the bridge combines the functions of ratchet, shaft, and core, without machining complexity other than the hook 32 for hooking the spring 7. There are three occasions of frolic.
  • the advantage of this construction is that there is no limit to the diameter of the core.
  • the second achievement of the figure 2 is distinguished by the riveting of the ratchet on the tree, there are three times of frolicking. There is also no limit to the diameter of the core.
  • the third achievement of the figure 3 is advantageous as regards the machining of the hook 32, inexpensive on a shaft without flange.
  • the tree is driven (or screwed) into the ratchet, the pivoting drum is on the barrel of the ratchet, there are three times of frolicking. There is also no limit to the diameter of the core.
  • 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 invention also relates to a watch 200 comprising such a movement 100.

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Description

Domaine de l'inventionField of the invention

L'invention concerne un barillet d'horlogerie pour montage pivotant entre une platine et un pont, ladite platine comportant un premier alésage ou une première pierre comportant ledit premier alésage, ladite platine ou ladite première pierre comportant une surface supérieure tournée vers ledit pont, et ledit pont comportant un deuxième alésage ou une deuxième pierre comportant ledit deuxième alésage, ledit pont ou ladite deuxième pierre comportant une surface inférieure tournée vers ladite platine, ledit barillet 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, ledit barillet comportant un sous-ensemble monobloc coaxial audit arbre et regroupant, autour d'un noyau , au moins ledit rochet ou/et ledit arbre.The invention relates to a watch cylinder for pivotally mounting between a plate and a bridge, said plate comprising a first bore or a first stone comprising said first bore, said plate or said first stone having an upper surface facing said bridge, and said bridge comprising a second bore or a second stone comprising said second bore, said bridge or said second stone having a lower surface facing said plate, said barrel comprising at least one spring housed between a pivoting drum and a cover and hung between, to its outer end said drum and at its inner end a shaft which is pivotally integral with a ratchet about a pivot axis, said cylinder having a monobloc sub-assembly coaxial with said shaft and grouping around a core, at least said ratchet and / or said shaft.

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.

Le document US 804 728 A JOHNSON décrit un barillet dont l'arbre porte un moyeu taraudé, qui porte lui-même un ressort de barillet. Deux composants sont ainsi nécessaires pour le maintien intérieur du ressort. Le tambour de barillet est guidé par une pierre qui n'est pas monobloc avec l'arbre. Le rochet de réarmement est situé de l'autre côté du pont de barillet. La partie porteuse du carré d'entraînement de ce rochet n'est pas constituée par une collerette, mais par l'extrémité de l'arbre qui est saillante au-delà du pont, du côté opposé au tambour.The document US 804,728 TO JOHNSON describes a barrel whose shaft carries a threaded hub, which itself carries a barrel spring. Two components are thus necessary for the internal maintenance of the spring. The barrel drum is guided by a stone that is not monoblock with the tree. The reset ratchet is located on the other side of the barrel bridge. The carrying portion of the drive square of the ratchet is not constituted by a flange, but by the end of the shaft which is projecting beyond the bridge, the side opposite the drum.

Le document US 168 581 A au nom de POTTER, publié en 1875, décrit un barillet avec un arbre sensiblement lisse pivotant à ses deux extrémités entre deux plaques de part et d'autre d'une platine dans laquelle est noyée le barillet et qui fait couvercle du tambour. Cet arbre porte une fusée creuse porteuse d'une roue, et sur laquelle est accrochée l'extrémité intérieure du ressort. En appui sur la fusée, l'arbre porte le tambour auquel est accrochée l'extrémité extérieure du ressort. L'arbre porte ensuite, en appui sur un léger épaulement de l'arbre, le rochet qui est emprisonné sous une des plaques latérales.The document US 168,581 A in the name of POTTER, published in 1875, describes a barrel with a substantially smooth shaft pivoting at its two ends between two plates on either side of a plate in which is drowned the cylinder and which covers the drum. This shaft carries a hollow rocket carrying a wheel, and on which is hung the inner end of the spring. In support of the rocket, the shaft carries the drum to which is attached the outer end of the spring. The tree then bears, against a slight shoulder of the tree, the ratchet which is trapped under one of the side plates.

Le document FR 2 329 000 A1 au nom de ETA décrit un barillet avec un arbre à fût non cylindrique, le crochet d'accrochage du ressort étant contenu dans un évidement délimité par un cylindre géométrique défini par les portées supérieure et inférieure de ce fût.The document FR 2 329 000 A1 in the name of ETA describes a barrel with a shaft with non-cylindrical barrel, the snap hook of the spring being contained in a recess delimited by a geometric cylinder defined by the upper and lower surfaces of this barrel.

Le document CH 83 330 A BEAULIEU WATCH CO décrit un barillet sans couvercle, comportant une bonde vissée sur un arbre. Le tambour est ajusté fou sur l'arbre, entre une portée de l'arbre et la bonde. Là encore le maintien intérieur du ressort nécessite deux composants.The document CH 83 330 A BEAULIEU WATCH CO describes a barrel without lid, including a bung screwed on a tree. The drum is adjusted crazy on the shaft, between a bearing of the tree and the bung. Here again the internal maintenance of the spring requires two components.

Le document FR 2 210 784 A1 au nom d'ETA décrit un barillet avec un arbre comportant des rainures longitudinales d'accrochage du ressort.The document FR 2 210 784 A1 in the name of ETA describes a cylinder with a shaft having longitudinal latching grooves of the spring.

Le document CH 15 286 A au nom de DANASINO, publié en 1898, décrit un barillet avec un arbre lisse qui porte une fusée creuse comportant un rochet. Cette fusée creuse comporte deux portées recevant le tambour et le couvercle. Le ressort moteur a une section augmentant graduellement depuis son extrémité extérieure vers son extrémité intérieure.The document CH 15 286 A in the name of DANASINO, published in 1898, describes a barrel with a smooth shaft carrying a hollow rocket with a ratchet. This hollow rocket has two spans receiving drum and cover. The mainspring has a gradually increasing section from its outer end to its inner end.

Le document US 1 561 673 A au nom de ULERY, publié en 1925, décrit un barillet avec un arbre, et comportant une collerette servant d'appui à une roue dentée d'entraînement du tambour. Cet arbre comporte à ses extrémités opposées deux logements, dont l'un reçoit un pion de guidage de cet arbre dans un palier logé dans une platine et maintenant cette extrémité de cet arbre dans ce palier, et dont l'autre reçoit un pion conique goupillé qui comporte une portée similaire pour un guidage supérieur dans un pont, et, à son extrémité distale, un carré d'entraînement d'un rochet.The document US 1,561,673 A in the name of ULERY, published in 1925, describes a barrel with a shaft, and having a flange serving to support a toothed wheel driving the drum. This shaft has at its opposite ends two housings, one of which receives a guide pin of this shaft in a bearing housed in a plate and now this end of this shaft in this bearing, and the other receives a pinned conical pin. which has a similar reach for a top guide in a bridge, and at its distal end a square drive of a ratchet.

Le document EP 2 570 864 A1 au nom de BLANCPAIN décrit un barillet avec une bonde qui comporte successivement des moyens de fixation d'un rochet, ou/et une première portée de pivotement dans une platine, une portée de pivotement de tambour, une collerette saillante par rapport à cette portée et appuyant sur une face interne du tambour vers le ressort, en retrait radialement par rapport à la collerette, une surface de réception du ressort, puis, en retrait radialement par rapport à cette dernière, une portée de pivotement d'un couvercle de fermeture du barillet, et une deuxième portée de pivotement dans une platine.The document EP 2 570 864 A1 in the name of BLANCPAIN describes a barrel with a bung which successively comprises means for fixing a ratchet, and / or a first pivoting surface in a plate, a drum pivoting surface, a projecting flange relative to this scope and pressing on an inner face of the drum towards the spring, radially recessed with respect to the collar, a receiving surface of the spring, then recessed radially with respect to the latter, a pivoting surface of a cylinder closure cover , and a second pivot range in a platen.

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 selon la revendication 1.The invention thus relates to a watch cylinder according to claim 1.

Selon une caractéristique particulière 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 a particular 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, 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 a 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 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, selon la revendication 8.The invention further relates to a clockwork movement, comprising at least one plate and a bridge, according to claim 8.

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 réalisations qui ne fait pas partie de l'invention revendiquée ;
  • la figure 2 représente, de façon schématisée et en coupe par son axe de pivotement, un barillet selon une deuxième réalisation qui ne fait pas partie de l'invention revendiquée ;
  • la figure 3 représente, de façon schématisée et en coupe par son axe de pivotement, un barillet selon une troisième réalisation propre à l'invention ;
  • la figure 4 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 embodiment which does not form part of the claimed invention;
  • the figure 2 represents, schematically and in section through its pivot axis, a cylinder according to a second embodiment which does not form part of the claimed invention;
  • the figure 3 represents, schematically and in section through its pivot axis, a cylinder according to a third embodiment of the invention;
  • the figure 4 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, autour d'un noyau 4, au moins le rochet 2 ou/et l'arbre 3.According to the invention, the barrel 1 comprises a monobloc subassembly 10 coaxial with the shaft 3 and comprising, around a core 4, at least the ratchet 2 or / and the shaft 3.

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.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.

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 une 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 surface 31, which is preferably of smaller diameter than that of the cylindrical 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 scope 31 is extended, 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 5.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 5.

La figure 3 illustre l'invention, et les figures 1 et 2 illustrent des réalisations qui ne font pas partie de l'invention revendiquée, qui sont exposées chacune en détail ci-après :The figure 3 illustrates the invention, and Figures 1 and 2 illustrate embodiments that are not part of the claimed invention, each of which is set out in detail below:

Première réalisation de la figure 1 :First realization of Figure 1:

Le barillet 1 comporte un sous-ensemble monobloc 10 regroupant un rochet 2, un arbre 3, et un noyau 4, sous un pont 5.The barrel 1 comprises a monobloc subassembly 10 comprising a ratchet 2, a shaft 3, and a core 4, under a bridge 5.

Cet 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 du pont 5, et il comporte un épaulement supérieur 11, dont la course est limitée par la surface inférieure 53 de cette ce pont 5 ou de cette pierre 52. Le rochet 2 est compris entre cet épaulement supérieur 11 et un épaulement inférieur 12 du sous-ensemble monobloc 10 au niveau du noyau 4.This monobloc subassembly 10 is pivoted at an upper bearing surface 13 in a bore 51 of the bridge 5 or a stone 52 of the bridge 5, and it comprises an upper shoulder 11 whose travel is limited by the lower surface. 53 of this bridge 5 or stone 52. The ratchet 2 is between this upper shoulder 11 and a lower shoulder 12 of the monobloc subassembly 10 at the core 4.

Cet épaulement inférieur 12 limite la course d'une surface supérieure 61 d'un tambour 6. Tandis que le tambour 6 pivote au niveau d'un alésage 62 avec une portée cylindrique 41 du noyau 4.This lower shoulder 12 limits the travel of an upper surface 61 of a drum 6. While the drum 6 pivots at a bore 62 with a cylindrical bearing surface 41 of the core 4.

L'arbre 3 est de diamètre inférieur à celui du noyau 4, et porte un crochet 32 d'accrochage interne d'un ressort 7, ou bien porte directement ce ressort 7 au niveau d'une portée 31 sur laquelle ce ressort 7 est fixé par friction ou par soudage, ou autre.The shaft 3 is of smaller diameter than that of the core 4, and carries a hook 32 for the internal hooking of a spring 7, or it carries this spring 7 directly at a bearing surface 31 on which this spring 7 is fixed by friction or welding, or whatever.

Le tambour 6 porte un couvercle 8 solidaire de ce tambour 6 et dont un alésage 81 coopère avec une portée 31 de l'arbre 3.The drum 6 carries a lid 8 integral with the drum 6 and a bore 81 cooperates with a bearing 31 of the shaft 3.

Une surface inférieure 82 de ce couvercle 8 est limitée en débattement par la surface supérieure 93 d'une platine 9 ou d'une pierre 92 logée dans une platine 9. L'alésage 91 de cette platine 9 ou de cette pierre 92 sert de pivot à la portée 31 de l'arbre 3.A lower surface 82 of this cover 8 is limited in movement by the upper surface 93 of a plate 9 or a stone 92 housed in a plate 9. The bore 91 of this plate 9 or of this stone 92 serves as a pivot at the reach 31 of the shaft 3.

Le sous-ensemble monobloc 10 comporte une portée 41 du noyau 4, qui est pivotante, dans un alésage 62 du tambour 6 également monté pivotant.The one-piece subassembly 10 comprises a bearing 41 of the core 4, which is pivotable, in a bore 62 of the drum 6 also pivotally mounted.

Le sous-ensemble monobloc 10 comporte une portée 31 de l'arbre 3, qui est pivotante dans un alésage 81 du couvercle 8 également monté pivotant.The monobloc subassembly 10 comprises a bearing 31 of the shaft 3, which is pivotable in a bore 81 of the cover 8 also pivotally mounted.

Le sous-ensemble monobloc 10 comporte à sa partie supérieure, au-dessus du rochet 2, une portée 13, qui est pivotante dans un alésage 51 du pont 5, ou le cas échéant de la pierre 52 du pont 5 qui est fixe.The monobloc subassembly 10 comprises at its upper part, above the ratchet 2, a bearing surface 13, which is pivotable in a bore 51 of the bridge 5, or if appropriate the stone 52 of the bridge 5 which is fixed.

Le sous-ensemble monobloc 10 comporte à sa partie inférieure, au-dessous du couvercle 8, une portée 31 de l'arbre 3, qui est pivotante dans un alésage 91 de la platine 9, ou le cas échéant de la pierre 92 de la platine 9 qui est fixe.The one-piece subassembly 10 has at its bottom part, below the cover 8, a bearing surface 31 of the shaft 3, which is pivotable in a bore 91 of the plate 9, or, if appropriate, of the stone 92 of the platinum 9 which is fixed.

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

L'ébat du rochet 2 est limité en appui inférieur par rapport au pont 5, par l'épaulement supérieur 11 du sous-ensemble monobloc 10 qui est limité par la surface inférieure 53 du pont 5 ou de de la pierre 52.The fretting of the ratchet 2 is limited in lower support relative to the bridge 5, by the upper shoulder 11 of the monobloc subassembly 10 which is limited by the lower surface 53 of the bridge 5 or stone 52.

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

Le diamètre de bonde n'est pas limité par autre chose que la résistance du matériau aux efforts de cisaillement, le diamètre de l'arbre 3 non plus, ce qui autorise la réalisation d'un très petit diamètre d'arbre, et l'obtention d'un facteur K très favorable.The bung diameter is not limited by anything other than the resistance of the material to the shear forces, the diameter of the shaft 3 either, which allows the realization of a very small shaft diameter, and the obtaining a very favorable K factor.

Deuxième réalisation de la figure 2:Second realization of Figure 2:

Le barillet 1 comporte un sous-ensemble monobloc 10 regroupant un arbre 3, et un noyau 4, sous un pont 5. Cet sous-ensemble monobloc 10 reçoit, en appui sur un épaulement 15, un rochet 2, qui est ensuite serti au niveau d'une rivure 16 du noyau 4, pour devenir solidaire en pivotement de cet sous-ensemble monobloc 10.The barrel 1 comprises a monobloc subassembly 10 gathering a shaft 3, and a core 4, under a bridge 5. This monobloc subassembly 10 receives, bearing on a shoulder 15, a ratchet 2, which is then crimped at the a rivet 16 of the core 4, to become integral in pivoting of this monobloc subassembly 10.

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 du pont 5, et le noyau 4 comporte un épaulement supérieur 11, dont la course est limitée par la surface inférieure 53 de ce pont 5 ou de cette pierre 52. Le rochet 2 est compris entre cet épaulement supérieur 11 et un épaulement inférieur 12 du noyau 4 du sous-ensemble monobloc 10.This monobloc subassembly 10 is pivoted at an upper bearing surface 13 in a bore 51 of the bridge 5 or a stone 52 of the bridge 5, and the core 4 comprises an upper shoulder 11, whose stroke is limited by the lower surface 53 of this bridge 5 or of this stone 52. The ratchet 2 is between this upper shoulder 11 and a lower shoulder 12 of the core 4 of the monobloc subassembly 10.

Cet épaulement inférieur 12 limite la course d'une surface supérieure 61 d'un tambour 6. Tandis que le tambour 6 pivote au niveau d'un alésage 62 avec une portée cylindrique 41 du noyau 4.This lower shoulder 12 limits the travel of an upper surface 61 of a drum 6. While the drum 6 pivots at a bore 62 with a cylindrical bearing surface 41 of the core 4.

L'arbre 3 est de diamètre inférieur à celui du noyau 4, et porte un crochet 32 d'accrochage interne d'un ressort 7, ou bien porte directement ce ressort 7 au niveau d'une portée 31 sur laquelle ce ressort 7 est fixé par friction ou par soudage, ou autre.The shaft 3 is of smaller diameter than that of the core 4, and carries a hook 32 for the internal hooking of a spring 7, or it carries this spring 7 directly at a bearing surface 31 on which this spring 7 is fixed by friction or welding, or whatever.

Le tambour 6 porte un couvercle 8 solidaire de ce tambour 6 et dont un alésage 81 coopère avec une portée 31 de l'arbre 3.The drum 6 carries a lid 8 integral with the drum 6 and a bore 81 cooperates with a bearing 31 of the shaft 3.

Une surface inférieure 82 de ce couvercle 8 est limitée en débattement par la surface supérieure 93 d'une platine 9 ou d'une pierre 92 logée dans une platine 9. L'alésage 91 de cette platine 9 ou de cette pierre 92 sert de pivot à la portée 31 de l'arbre 3.A lower surface 82 of this cover 8 is limited in movement by the upper surface 93 of a plate 9 or a stone 92 housed in a plate 9. The bore 91 of this plate 9 or of this stone 92 serves as a pivot at the reach 31 of the shaft 3.

Le sous-ensemble monobloc 10 comporte une portée 41 du noyau 4, qui est pivotante, dans un alésage 62 du tambour 6 également monté pivotant.The one-piece subassembly 10 comprises a bearing 41 of the core 4, which is pivotable, in a bore 62 of the drum 6 also pivotally mounted.

Le sous-ensemble monobloc 10 comporte une portée 31 de l'arbre 3, qui est pivotante dans un alésage 81 du couvercle 8 également monté pivotant.The monobloc subassembly 10 comprises a bearing 31 of the shaft 3, which is pivotable in a bore 81 of the cover 8 also pivotally mounted.

Le sous-ensemble monobloc 10 comporte à sa partie supérieure, au-dessus du rochet 2, une portée 13, qui est pivotante dans un alésage 51 du pont 5, ou de la pierre 52 du pont 5 qui est fixe.The one-piece subassembly 10 comprises at its upper part, above the ratchet 2, a bearing surface 13, which is pivotable in a bore 51 of the bridge 5, or the stone 52 of the bridge 5 which is fixed.

Le sous-ensemble monobloc 10 comporte à sa partie inférieure, au-dessous du couvercle 8, une portée 31 de l'arbre 3, qui est pivotante dans un alésage 91 de la de la platine 9 ou de la pierre 92 de la platine 9 qui est fixe.The one-piece subassembly 10 has at its bottom part, below the cover 8, a bearing 31 of the shaft 3, which is pivotable in a bore 91 of the plate 9 or the stone 92 of the plate 9 which is fixed.

Cette réalisation a trois reprises d'ébat.This achievement has three times frolic.

L'ébat du tambour 6 est limité en appui inférieur par rapport au noyau 4, par la surface supérieure 61 du tambour 6 qui est limitée par l'épaulement inférieur 12 du noyau 4 du sous-ensemble monobloc 10.The frolicking of the drum 6 is limited in lower bearing relative to the core 4, by the upper surface 61 of the drum 6 which is limited by the lower shoulder 12 of the core 4 of the monobloc subassembly 10.

L'ébat du noyau 4 est limité en appui inférieur par rapport au pont 5, par l'épaulement supérieur 11 du noyau 4 qui est limité par la surface inférieure 53 du pont 5 ou de la pierre 52.The fretting of the core 4 is limited in lower support relative to the bridge 5, by the upper shoulder 11 of the core 4 which is limited by the lower surface 53 of the bridge 5 or the stone 52.

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

Le diamètre du noyau au niveau du tambour n'est pas limité par autre chose que la résistance du matériau aux efforts de cisaillement, le diamètre de l'arbre 3 non plus, ce qui autorise la réalisation d'un très petit diamètre d'arbre, et l'obtention d'un facteur K très favorable.The diameter of the core at the drum is not limited by anything other than the strength of the material shear forces, the diameter of the shaft 3 either, which allows the realization of a very small shaft diameter , and obtaining a very favorable K factor.

Troisième réalisation de la figure 3, correspondant à l'invention:Third embodiment of FIG. 3, corresponding to the invention:

Le barillet 1 comporte un sous-ensemble monobloc 10 regroupant un rochet 2 et un noyau 4, sous un pont 5. Le noyau 4 définit à sa partie intérieure un canon, qui comporte une portée externe 41 et un logement ou un alésage 45 dans lequel est chassé un arbre 3, qui devient ainsi solidaire en pivotement avec ce noyau 4.The barrel 1 comprises a monobloc subassembly 10 including a ratchet 2 and a core 4, under a bridge 5. The core 4 defines at its inner part a gun, which has an outer bearing 41 and a housing or a bore 45 in which is driven a shaft 3, which thus becomes pivotally integral with the core 4.

L'arbre 3 peut ainsi être très simple, notamment comporter une unique portée 31 cylindrique, et l'usinage d'un crochet 32 est alors facile et économique.The shaft 3 can thus be very simple, in particular with a single cylindrical bearing surface 31, and the machining of a hook 32 is then easy and economical.

Cet 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 du pont 5, et il comporte un épaulement supérieur 11, dont la course est limitée par la surface inférieure 53 de ce pont 5 ou de cette pierre 52. Le rochet 2 est compris entre cet épaulement supérieur 11 et un épaulement inférieur 12 du sous-ensemble monobloc 10, qui est adjacent au canon du noyau 4 et à sa portée cylindrique 41.This monobloc subassembly 10 is pivoted at an upper bearing surface 13 in a bore 51 of the bridge 5 or a stone 52 of the bridge 5, and it comprises an upper shoulder 11 whose travel is limited by the lower surface. 53 of this bridge 5 or stone 52. The ratchet 2 is between this upper shoulder 11 and a lower shoulder 12 of the monobloc subassembly 10, which is adjacent to the barrel of the core 4 and its cylindrical bearing 41.

Cet épaulement inférieur 12 limite la course d'une surface supérieure 61 d'un tambour 6. Tandis que le tambour 6 pivote au niveau d'un alésage 62 avec une portée cylindrique 41 du noyau 4.This lower shoulder 12 limits the travel of an upper surface 61 of a drum 6. While the drum 6 pivots at a bore 62 with a cylindrical bearing surface 41 of the core 4.

L'arbre 3 est de diamètre inférieur à celui du noyau 4, et porte un crochet 32 d'accrochage interne d'un ressort 7, ou bien porte directement ce ressort 7 au niveau d'une portée 31 sur laquelle ce ressort 7 est fixé par friction ou par soudage, ou autre.The shaft 3 is of smaller diameter than that of the core 4, and carries a hook 32 for the internal hooking of a spring 7, or it carries this spring 7 directly at a bearing surface 31 on which this spring 7 is fixed by friction or welding, or whatever.

Le tambour 6 porte un couvercle 8 solidaire de ce tambour 6 et dont un alésage 81 coopère avec une portée 31 de l'arbre 3.The drum 6 carries a lid 8 integral with the drum 6 and a bore 81 cooperates with a bearing 31 of the shaft 3.

Une surface inférieure 82 de ce couvercle 8 est limitée en débattement par la surface supérieure 93 d'une platine 9 ou d'une pierre 92 logée dans une platine 9. L'alésage 91 de cette platine 9 ou de cette pierre 92 sert de pivot à la portée 31 de l'arbre 3.A lower surface 82 of this cover 8 is limited in movement by the upper surface 93 of a plate 9 or a stone 92 housed in a plate 9. The bore 91 of this plate 9 or of this stone 92 serves as a pivot at the reach 31 of the shaft 3.

Le sous-ensemble monobloc 10 comporte une portée 41 du noyau 4, qui est pivotante, dans un alésage 62 du tambour 6 également monté pivotant.The one-piece subassembly 10 comprises a bearing 41 of the core 4, which is pivotable, in a bore 62 of the drum 6 also pivotally mounted.

L'arbre 3 comporte une portée 31 qui est pivotante dans un alésage 81 du couvercle 8 également monté pivotant.The shaft 3 comprises a bearing 31 which is pivotable in a bore 81 of the cover 8 also pivotally mounted.

Le sous-ensemble monobloc 10 comporte à sa partie supérieure, au-dessus du rochet 2, une portée 13, qui est pivotante dans un alésage 51 du pont 5 ou de la pierre 52 du pont 5 qui est fixe.The one-piece subassembly 10 comprises at its upper part, above the ratchet 2, a bearing surface 13, which is pivotable in a bore 51 of the bridge 5 or the stone 52 of the bridge 5 which is fixed.

L'arbre 3 comporte à sa partie inférieure, au-dessous du couvercle 8, une portée 31 qui est pivotante dans un alésage 91 de la platine 9 ou de la pierre 92 de la platine 9 qui est fixe.The shaft 3 comprises at its lower part, below the cover 8, a bearing 31 which is pivotable in a bore 91 of the plate 9 or the stone 92 of the plate 9 which is fixed.

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

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

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

Le diamètre du noyau n'est pas limité par autre chose que la résistance du matériau aux efforts de cisaillement, le diamètre de l'arbre 3 non plus, ce qui autorise la réalisation d'un très petit diamètre d'arbre, et l'obtention d'un facteur K très favorable.The diameter of the core is not limited by anything other than the resistance of the material to the shear forces, the diameter of the shaft 3 either, which allows the realization of a very small diameter of tree, and obtaining a very favorable K factor.

Dans une autre réalisation encore, très voisine de celle de la figure 3, l'arbre 3 comporte une extrémité filetée qui coopère avec un taraudage que comporte le noyau 4 dans le canon, et qui remplace alors l'alésage 45.In yet another achievement, very close to that of the figure 3 , the shaft 3 has a threaded end which cooperates with a tapping which comprises the core 4 in the barrel, and which then replaces the bore 45.

En somme, la première réalisation de la figure 1 est avantageuse car le sous-ensemble 10 monobloc sous le pont réunit les fonctions de rochet, d'arbre, et de noyau, sans complexité d'usinage autre que le crochet 32 d'accrochage du ressort 7. Il y a trois reprises d'ébat. L'avantage de cette construction est qu'il n'y a pas de limite au diamètre du noyau.In sum, the first realization of the figure 1 is advantageous because the subassembly 10 monoblock under the bridge combines the functions of ratchet, shaft, and core, without machining complexity other than the hook 32 for hooking the spring 7. There are three occasions of frolic. The advantage of this construction is that there is no limit to the diameter of the core.

La deuxième réalisation de la figure 2 se distingue par le rivetage du rochet sur l'arbre, il y a trois reprises d'ébat. Il n'y a pas non plus de limite au diamètre du noyau.The second achievement of the figure 2 is distinguished by the riveting of the ratchet on the tree, there are three times of frolicking. There is also no limit to the diameter of the core.

La troisième réalisation de la figure 3 est avantageuse en ce qui concerne l'usinage du crochet 32, bon marché sur un arbre sans collerette. L'arbre est chassé (ou vissé) dans le rochet, le pivotement du tambour se fait sur le canon du rochet, il y a trois reprises d'ébat. Il n'y a pas non plus de limite au diamètre du noyau.The third achievement of the figure 3 is advantageous as regards the machining of the hook 32, inexpensive on a shaft without flange. The tree is driven (or screwed) into the ratchet, the pivoting drum is on the barrel of the ratchet, there are three times of frolicking. There is also no limit to the diameter of the core.

L'invention concerne encore un mouvement 100 d'horlogerie, comportant au moins une platine 9, et un pont 5, et un tel barillet 1.The invention also relates to a watch movement 100, comprising at least one plate 9, and a bridge 5, and such a cylinder 1.

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 (9)

  1. Timepiece barrel (1) for pivotal assembly between a plate (9) and a bar (5), said plate (9) including a first bore (91) or a first jewel (92) comprising said first bore (91), said plate (9) or said first jewel (92) comprising an upper surface (93) facing said bar (5), and said bar (5) comprising a second bore (51) or a second jewel (52) comprising said second bore (51), said bar (5) or said second jewel (52) comprising a lower surface (53) facing said plate (9), said barrel (1) including at least one spring (7) housed between a pivoting drum (6) and a cover (8) and hooked between said drum (6) at the outer end thereof and an arbor (3) at the inner end thereof, said arbor pivoting integrally with a ratchet (2) about a pivot axis (D), said barrel (1) including a one-piece sub-assembly (10) coaxial with said arbor (3) and grouping together, about a core (4), at least said ratchet (2) and/or said arbor (3), characterized in that said one-piece sub-assembly (10) comprises said ratchet (2) and said core (4), which defines at the lower part thereof a pipe, which includes an outer bearing surface (41) on which said drum (6) is pivotally guided at a third bore (62) comprised in said drum, and said pipe also includes a fourth bore (45) into which is pressed said arbor (3) integral in rotation with said core (4).
  2. Barrel (1) according to claim 1, characterized in that said one-piece sub-assembly (10) includes an upper bearing surface (13) arranged to pivot, depending on the case, in said second bore (51) of said bar (5) or of said second jewel (52), and in that said one-piece sub-assembly (10) also includes an upper shoulder (11), whose travel is limited by said lower surface (53) of said bar (5) or of said second jewel (52), and in that said ratchet (2) is arranged between said upper shoulder (11) and a lower shoulder (12) comprised in said one-piece sub-assembly (10) and which is adjacent to said pipe of said core (4) and to said outer bearing surface (41) of said pipe (4), said lower shoulder (12) being arranged to limit the travel of an upper surface (61) of said drum (6).
  3. Barrel (1) according to claim 1 or 2, characterized in that said arbor (3) is of smaller diameter than that of said core (4), and bears a hook (32) for internal hooking of a said spring (7).
  4. Barrel (1) according to claim 1 or 2, characterized in that said arbor (3) is of smaller diameter than that of said core (4), and directly carries a said spring (7) on a bearing surface (31) on which said spring (7) is fixed by friction or by welding.
  5. Barrel (1) according to any of claims 1 to 4, characterized in that said drum (6) carries said cover (8) which is integral with said drum (6) and includes a fifth bore (81) cooperating with a bearing surface (31) of said arbor (3) and the travel of a lower surface (82) of said cover (8) is limited by said upper surface (93), said bearing surface (31) of said arbor (3) being arranged to pivot, depending on the case, in said bore (91) of said plate (9) or of said first jewel (92).
  6. Barrel (1) according to any of claims 1 to 5, characterized in that said arbor (3) includes a single cylindrical bearing surface (31).
  7. Barrel (1) according to any of claims 1 to 6, characterized in that said spring (7) is made of a multiphase, cobalt-nickel-chromium based alloy, comprising 44 to 46% cobalt, 20 to 22% 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 having a Young's modulus comprised between 200 and 240 GPa and a shear modulus comprised between 80 and 100 GPa, in that said spring (7) has a width to thickness ratio of between 3 and 23, and in that the ratio between the maximum radius of a bearing surface (31) of the spring of said arbor (3) and the thickness of said spring (7) is between 3 and 9.
  8. Timepiece movement (100) including at least one plate (9) and a bar (5), said plate (9) comprising a first bore (91) or a first jewel (92) comprising said first bore (91), said plate (9) or said first jewel (92) comprising an upper surface (93) facing said bar (5), and said bar (5) comprising a second bore (51) or a second jewel (52) comprising said second bore (51), said bar (5) or said second jewel (52) comprising a lower surface (53) facing said plate (9) and a barrel (1) according to any of claims 1 to 7 mounted between said plate (9) and said bar (5).
  9. Watch (200) including a movement (100) according to the preceding claim.
EP12197741.7A 2012-12-18 2012-12-18 Timepiece barrel Active EP2746865B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP12197741.7A EP2746865B1 (en) 2012-12-18 2012-12-18 Timepiece barrel
PCT/EP2013/071988 WO2014095125A1 (en) 2012-12-18 2013-10-21 Timepiece barrel
CN201380066012.8A CN104871094B (en) 2012-12-18 2013-10-21 Clockwork feed box
JP2015537294A JP5960923B2 (en) 2012-12-18 2013-10-21 Timer barrel
RU2015129573A RU2629155C2 (en) 2012-12-18 2013-10-21 Clockwork motor
US14/428,079 US9367037B2 (en) 2012-12-18 2013-10-21 Timepiece barrel
HK16101508.5A HK1213644A1 (en) 2012-12-18 2016-02-11 Timepiece barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12197741.7A EP2746865B1 (en) 2012-12-18 2012-12-18 Timepiece barrel

Publications (2)

Publication Number Publication Date
EP2746865A1 EP2746865A1 (en) 2014-06-25
EP2746865B1 true EP2746865B1 (en) 2016-03-02

Family

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Application Number Title Priority Date Filing Date
EP12197741.7A Active EP2746865B1 (en) 2012-12-18 2012-12-18 Timepiece barrel

Country Status (7)

Country Link
US (1) US9367037B2 (en)
EP (1) EP2746865B1 (en)
JP (1) JP5960923B2 (en)
CN (1) CN104871094B (en)
HK (1) HK1213644A1 (en)
RU (1) RU2629155C2 (en)
WO (1) WO2014095125A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7133909B2 (en) * 2016-07-04 2022-09-09 ロレックス・ソシエテ・アノニム Watch assembly manufacturing method and watch assembly obtained by said manufacturing method
JP6787098B2 (en) * 2016-12-13 2020-11-18 セイコーエプソン株式会社 How to disengage watch movements, mechanical watches and claw levers

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Publication number Priority date Publication date Assignee Title
US168581A (en) * 1875-10-11 Improvement in barrel-arbors for watches
CH15286A (en) * 1897-09-15 1898-04-30 Giuseppe Danasino Advanced mainspring watch movement
US730103A (en) * 1903-01-13 1903-06-02 Lewis A Erickson Watch-barrel.
US804728A (en) * 1905-03-25 1905-11-14 Illinois Watch Company Watch-barrel.
US978613A (en) * 1909-07-31 1910-12-13 Keystone Watch Case Company Watch-barrel.
US996499A (en) * 1910-11-25 1911-06-27 Robert L Marshall Safety spring-barrel.
US1033020A (en) * 1911-05-31 1912-07-16 Western Clock Mfg Company Clock-spring barrel.
CH83330A (en) * 1919-05-26 1919-12-01 Co Beaulieu Watch Watch movement
US1561673A (en) * 1924-04-03 1925-11-17 Ulery Clarence Everett Clock arbor or shaft
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
JPS446779Y1 (en) * 1966-02-01 1969-03-12
CH1838572A4 (en) 1972-12-18 1974-12-31
CH607738B (en) 1975-10-21 Ebauchesfabrik Eta Ag ARBRE DE BARILLET EXTRACTIBLE POUR MOUVEMENT DE MONTRE.
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.
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.
CH702994B1 (en) * 2010-04-26 2015-07-31 Eterna Sa Fabrique D Horlogerie Timepiece comprising a barrel mounted on a barrel bridge.
EP2560057B1 (en) * 2011-08-17 2014-04-02 ETA SA Manufacture Horlogère Suisse Timepiece movement with reduced height and large power reserve
EP2570864B1 (en) * 2011-09-15 2018-11-14 Blancpain S.A. Clock barrel with reduced core diameter
EP2634649B1 (en) * 2012-02-29 2017-07-12 ETA SA Manufacture Horlogère Suisse Inexpensive timepiece barrel

Also Published As

Publication number Publication date
WO2014095125A1 (en) 2014-06-26
CN104871094B (en) 2017-10-13
EP2746865A1 (en) 2014-06-25
JP5960923B2 (en) 2016-08-02
US9367037B2 (en) 2016-06-14
CN104871094A (en) 2015-08-26
HK1213644A1 (en) 2016-07-08
RU2629155C2 (en) 2017-08-24
JP2016512596A (en) 2016-04-28
US20150253731A1 (en) 2015-09-10
RU2015129573A (en) 2017-01-23

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