EP2756359B1 - Clock barrel assembly with reduced core diameter - Google Patents

Clock barrel assembly with reduced core diameter Download PDF

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Publication number
EP2756359B1
EP2756359B1 EP12758483.7A EP12758483A EP2756359B1 EP 2756359 B1 EP2756359 B1 EP 2756359B1 EP 12758483 A EP12758483 A EP 12758483A EP 2756359 B1 EP2756359 B1 EP 2756359B1
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EP
European Patent Office
Prior art keywords
drum
bridge
plate
cover
core
Prior art date
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Active
Application number
EP12758483.7A
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German (de)
French (fr)
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EP2756359A1 (en
Inventor
Laurent Kaelin
Baptist Wyssbrod
Arthur Queval
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
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ETA SA Manufacture Horlogere Suisse
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Priority to EP12758483.7A priority Critical patent/EP2756359B1/en
Publication of EP2756359A1 publication Critical patent/EP2756359A1/en
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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
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B33/00—Calibers
    • G04B33/14—Calibers of which the mainsprings or barrels are easily removable
    • 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
    • G04B35/00—Adjusting the gear train, e.g. the backlash of the arbors, depth of meshing of the gears

Definitions

  • the document GB 647 783 in the name of ELGIN describes an alloy with high elastic resistance, applicable to the chronometric springs.
  • the invention takes into account several solutions to achieve this reduction of the bung diameter.
  • the invention relates to a clockwork movement, comprising at least one plate with a fixed spacing of a bridge carrying in common a watch drum assembly, which barrel assembly comprises at least one mainspring spring mounted between, at a first end a barrel disposed adjacent said bridge, and at a second end a receiving surface that comprises a barrel plug pivotally attached to a ratchet and coaxial with said drum about a common pivot axis, said assembly barrel having on the side of said platen a lid attached to said drum, said lid and said drum together constituting a chamber enclosing said spring, characterized in that said spring is made of a cobalt-nickel-chromium-based multiphase alloy comprising 44 at 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% % of tit ane, 0 to 1% beryllium, and Young's modulus of 200 to 240
  • the invention relates to a clockwork movement, comprising at least one plate with fixed spacing of a bridge carrying a common watch drum assembly, which barrel assembly comprises at least one mainspring barrel mounted between, at a first end of a barrel disposed next to said bridge, and at a second end a receiving surface that comprises a barrel plug pivotally attached to a ratchet and coaxial with said drum about a common pivot axis, said barrel assembly comprising on the side of said platen a lid fixed on said drum, said lid and said drum together forming a chamber enclosing said spring.
  • the invention also relates to a timepiece comprising at least one such watch movement.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • one solution consists of a decrease in the diameter of the barrel shaft and the associated bung, so as to increase the space available in the drum. for the spring.
  • the ratio of the bead radius to the thickness of the spring is usually between 10 and 20, and the invention proposes to lower this ratio below 10, and preferably in the range between 5 and 10.
  • a ratchet is mounted axially on a barrel axis or on a bung, via a square, the ratchet being generally fixed by an axial screw.
  • the size of this screw and that of the square thus condition a minimum diameter of a pivoting surface.
  • a Shoulder joined to this pivoting surface limits axial fretting of the shaft or the bung relative to a plate or a bridge carrying a stone or the like.
  • a diameter even greater than that of this shoulder is necessary for a pivoting guide surface of the drum on the shaft or on the bung, combined with a shoulder limiting axial fretting of the drum.
  • the respect of minimal sections of matter implies a quotation chain which results in a large size, difficult to reduce. In particular, it is not enough to reduce all the sizing, because the sections of material are then insufficient to ensure fatigue resistance.
  • the document US 996 499 A in the name of MARSHALL describes a barrel where the ratchet is secured to a one-piece lid which includes the hook hook of the outer coil of the spiral.
  • This cover is guided by a bearing in the plate, and has a bore in which is guided the end of the barrel shaft.
  • the latter has a main cylindrical scope, which guides the drum, via two bearings. This range is limited by a stop shoulder, which keeps the drum away from the deck, in which one end of the barrel shaft pivots. While the bottom has a shoulder arranged to limit its stroke relative to the plate.
  • the barrel spring is therefore not mounted between the shaft and the drum, but between the drum and the lid.
  • the document CH 318 898 A in the name of JUNGHANS describes a barrel which comprises a barrel drum on which pivots the bung, which is connected by a square to the barrel shaft pivoting between bridge and platinum, and is keyed to the ratchet.
  • the shaft carries, on the opposite side to the ratchet, a toothed wheel co-operating with the automatic winding mechanism. A net on a bridge limits the travel of this toothed wheel.
  • the document EP 1542 098 A2 in the name of LANGE relates to a particular configuration where the drum is guided by its periphery in a bore of the bridge, and wherein this drum has an annular projecting surface, said support regions, which extends radially beyond the guide bore of the drum, and so as to allow a support, or a stop, of the drum on the bridge.
  • said drum pivots in said bridge or in a guide carried by said bridge, and comprises an axial bearing surface arranged to cooperate in limiting travel of said drum with a complementary abutment surface that includes said bridge or said guidance, in said cover rotates in said platen or in a guide carried by said platen, and comprises an axial bearing surface arranged to cooperate in abutment limit of stroke of said cover with a complementary abutment surface that includes said platen or said guide, and in that said bung comprises a first pivoting bearing in a bore of said drum, and a second pivoting bearing in a bore of said lid, and in that the relative axial displacement between said bung and said drum is limited by a first abutment surface of said bung and a first internal complementary abutment surface of said drum, and the relative axial displacement between said bung and said lid is limited by a second abutment surface of said bung and a second complementary abutment surface internal to said lid.
  • said barrel assembly comprises means for limiting the longitudinal frust between said barrel assembly and at least said plate or said bridge.
  • the invention also relates to a timepiece comprising at least one such watch movement with such a barrel assembly for energy storage with an incorporated inlet, or else by a ratchet mounted pivotally integral with said bung, or by a drum toothing mounted pivotally integral with said drum, and an outlet respectively constituted by a toothing drum mounted integral pivoting said drum, or by a ratchet integral pivotally of said bung.
  • the invention relates to the field of watchmaking, and more particularly the field of energy storage barrels, for feeding a movement, a ring, or other functionality of a room watchmaking.
  • the invention relates to a clockwork movement 100, comprising at least one plate 10 with a fixed spacing of a bridge 11 carrying in common a barrel 1 clock assembly.
  • This barrel assembly 1 comprises at least one mainspring 2 of barrel mounted between, at a first end 21 a barrel drum 3 disposed adjacent to the bridge 11, and at a second end 22 a receiving surface 5 that includes a plug 4 of barrel integral pivoting a ratchet 12 and coaxial with the drum 3 about a common pivot axis D.
  • the barrel assembly 1 comprises, on the side of the plate 10, a cover 7 fixed on the drum 3, this cover 7 and this drum 3 constituting together a chamber 32 enclosing the spring 2.
  • the spring 2 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 2 has a width / thickness ratio of between 3 and 23, and more particularly between 9 and 21.
  • the maximum radius of the bung 4, made of steel or stainless steel, relative to the pivot axis D is less than nine times the maximum thickness of the spring 2.
  • the embodiments illustrated make it possible to obtain a ratio neighbor of five.
  • motion 100 includes frost control means.
  • these limiting means comprise means for setting or limiting the stroke comprising a wedging washer 70 interposed between a plate 10 or a bridge 11, on the one hand, and the drum 3 or a cover 7 fixed on the other side, drum 3 to constitute with it a chamber 32 enclosing the spring 2.
  • This wedge washer 70 is independent of the bung 4 and guided by a bearing 44 that includes this bung 4 and interposed between the first plate 10 or the bridge respectively 11, and on the other hand the lid 7 or the drum 3 respectively.
  • this at least one wedging washer 70 is guided by a bearing 44 that includes the bung 4, and more particularly is driven on this bearing surface 44.
  • the luff limiting means comprise a first wedging washer 70 interposed between the bridge 11 and the drum 3, and a second such shim washer 70 interposed between the plate 10 and the lid 7.
  • the shim washer 70 is independent, on the one hand of a barrel shaft 18 carrying the bung 4 or merging with it, and on the other hand of the lid 7, and is interposed between the plate 10 and the lid 7.
  • the plug 4 is pivoted directly into the plate 10 and the bridge 11.
  • the plug 4 is pivoted indirectly in the plate 10 and the bridge 11, respectively via the lid 7 and the drum 3.
  • the plug 4 comprises two coaxial portions 4A, 4B, one of which 4B is pivoted directly in the bridge 11 and has a bearing surface 43 for guiding a bore 35 of the drum 3, and the other 4A of which is pivoted directly into the plate 10 and carries a hook 41 for hooking the spring 2.
  • the drum 3 pivots in the bridge 11 or in a guide 403 carried by the bridge 11, and it comprises an axial bearing surface 39 arranged to cooperate as a limiting limit of travel of the drum 3 with a complementary abutment surface 119 that comprises the bridge 11 or this guide 403.
  • the lid 7 pivots in the plate 10 or in a guide 108 carried by the plate 10, and it comprises an axial bearing surface 79 arranged to cooperate in limiting the stroke of the cover 7 with a complementary abutment surface 109 that comprises the plate 10 or the guide 108.
  • the bung 4 comprises a first bearing surface 43 pivoting in a bore 35 of the drum 3, and a second bearing surface 44 pivoting in a bore 75 of the lid 7.
  • the relative axial displacement between the bung 4 and the drum 3 is limited by a first surface of stop 403 of the bung 4 and a first complementary abutment surface 31 inside the drum 3.
  • the relative axial displacement between the bung 4 and the cover 7 is limited by a second abutment surface 407 of the bung 4 and a second abutment surface complementary 71 internal cover 7.
  • this axial bearing surface 39 of the drum 3 or / and this axial bearing surface 79 of the cover 7 is constituted by a net 202, 207, to reduce the contact surface.
  • This net 202, 207 comes to bear on a guide 403, 108, carried by the bridge 11 or the plate 10.
  • the movement 100 comprises means for limiting the longitudinal gap 6 between the barrel assembly 1 and at least the plate 10 or the bridge 11.
  • these limiting means comprise pivoting guide means directly in the plate 10 and / or in the bridge 11 of the drum 3 and the cover 7.
  • limiting means advantageously comprise means for setting or limiting the stroke, with respect to the plate 10 or to the bridge 11, of the drum 3 and / or of the lid 7.
  • the limiting means comprise at least one projection 202, which protrudes from an outer surface 30 of the drum 3 facing the plate 10 or the bridge 11, and / or, as visible in FIG. figure 5 at least one projection 102 projecting from an outer surface of the plate 10 or the bridge 11 and facing an outer surface 30 of the drum 3.
  • the limiting means comprise at least one projection 207 projecting from an outer surface 76 of the cover 7, facing the plate 10 or the bridge 11, and / or at least one projection 107 projecting from an outer surface of the plate 10 or bridge 11 and facing an outer surface 76 of the cover 7.
  • the limiting means are advantageously completed, as can be seen in the variant of FIG. figure 5 by at least one projection 201 projecting from an external surface 121 of the ratchet 12 carried by the bung 4 facing the plate 10 or the bridge 11, and / or by at least one projection 101 projecting from an external surface of the plate 10 or the bridge 11 facing an outer surface 121 of the ratchet 12.
  • the receiving surface 5 is a surface of revolution with respect to the pivot axis D.
  • the spring 2 is fixed to the bung 4 by friction.
  • the spring 2 forms with the bung 4 a soldered or brazed monoblock spring-binder subassembly, or the like.
  • the invention thus takes into account several solutions to achieve a decrease in the bung diameter, which allows to increase the energy stored in the barrel.
  • a first solution is to ensure the frolicking between drum and cover by the mainspring, transferring to the spring this frolicking adjustment function, in particular by equipping the spring protruding areas, such as dots, more rolled areas wide, flange reported, or the like. It is then possible to remove the bearing shoulders of the drum and cover on the barrel shaft or on the bung.
  • a second solution is to make a bung in several parts, including two or three parts.
  • This solution makes it possible in particular to make a bung of diameter smaller than the pivoting diameter of the drum.
  • the plug is introduced through the bore of the drum.
  • a tree or a bung in two parts, or more, facilitates the machining hook snap hook of the mainspring.
  • the bung may include, for the ratchet drive, a conventional square, or a thread. Or, in a non-limiting way, in a second variant
  • the bung can still include one or more washers or diameter catch rings for its guidance in platinum and bridge.
  • Another solution is to chase on the bung a setting washer of the drum-lid frog. This washer is mounted so as to avoid, for an intervention on the cylinder, any disassembly of a bridge.
  • the different variants proposed by the invention ensure ease of machining, ease of assembly, ease of disassembly, and control of axial fringes between the various components and with respect to the bridges.
  • the invention lies immediately in the search for the smallest possible bung diameter.
  • the invention is aimed at proposing new solutions for taking back one or the other of these antics, or both.
  • this movement 100 comprises means for limiting the longitudinal gap 6 between the barrel assembly 1 and at least one plate 10 or a bridge 11 carrying or carrying this barrel assembly 1.
  • FIGS. 4 to 6 illustrate supports in the form of nets, respectively between a bridge 11 and the ratchet 12 on the figure 4 , and between on the one hand a bridge 11 carrying a net 102 and the drum 3, and on the other hand between a plate 10 and the cover 7 of the cylinder 1.
  • This cover 7 carries a net 207 on the figure 5 , which shows a plate 10 and a bridge 11 each carrying a thread, respectively 107 and 102, cooperating respectively with the lid 7 and the drum 3.
  • the support in the form of threads is formed between the drum 3 and a bridge 11, with a thread 202 on the drum 3 on the figure 6 .
  • the figure 8 illustrates a bung 4 step in two parts 4A and 4B, the latter 4B having a bearing surface 43 for guiding a bore 35 of the drum 3.
  • the main part 4A is guided in a stone driven into the plate 10 at a range 182 at its lower end 87, guiding the cover 7 is on a bearing surface 44 of the flange 4A which cooperates with a bore 75 of 7.
  • Part 4B is guided by a bearing 181 in a stone driven into the bridge 11 towards its upper end 86.
  • This figure illustrates a traditional attachment of the spring 2 on a hook 41.
  • the figure 10 illustrates an inverted configuration compared to that of the figure 5 , and this is the drum 3 of the figure 10 which carries a net 202, intended to cooperate in support with a stone 302 driven into a bridge 11, 302 stone whose bore guides a scope 43 of the bung.
  • this same cylindrical bearing surface 43 extends to ensure the pivoting guidance of the drum 3.
  • the fretting of the barrel assembly relative to the blank is defined by the axial play of the plug 4, which is limited by the thread 202 of the drum 3 facing the stone 302.
  • the figure 11 also shows a thread 202 of the drum 3 arranged to cooperate with a stone 302 driven into a bridge 11.
  • the bung 4 door driven on one of its bearing surfaces 44, a washer 70.
  • the washer 70 is driven on height to ensure an axial space.
  • the frog of the barrel vis-à-vis the blank is limited by the plug 4 with respect to the stone 702 of the plate 10 on the one hand, and the thread 202 of the drum 3 relative to the bridge 11 of somewhere else.
  • the figure 12 also shows a thread 202 of the drum 3 arranged to cooperate with a stone 302 driven into a bridge 11, and a thread 207 of the cover 7 arranged to cooperate with a stone 702 driven into the plate 10.
  • the figure 13 shows a thread 207 of the cover 7 arranged to cooperate with a stone 702 driven into the plate 10.
  • the bung is in two parts: the bung 4 proper carrier of the spring 2, fitted on a barrel shaft 18, with axial limitation by a bearing face 18A of the barrel shaft 18 and an antagonistic bearing face 49 of the bung 4.
  • the bung 4, carrier of the inner end 22 of the spring 2 has a bore bore 411 cooperating with a bearing surface 84 of a barrel shaft 18.
  • the recovery of the frog of the barrel alone is provided by the spring 2, which has a projecting zone 23, here an attached flange or a turn sufficiently far from the axis so as to bear on the inner surface 31 of the drum 3 rather than on a lower shoulder 189A of the barrel shaft.
  • the figure 14 still shows a thread 202 of the drum 3 arranged to cooperate with a stone 302 driven into a bridge 11, and a thread 207 of the cover 7 arranged to cooperate with a stone 702 driven into the plate 10.
  • This figure 14 shows a ratchet 12 having a tapped thread on a thread that includes the bung 4.
  • the figure 15 illustrates an advantageous variant with a bung 4 having a lower flange 40, which is arranged to abut by a bearing face 401 on an inner face 31 of the drum 3.
  • the fretting of the bung with respect to the barrel assembly is limited by the displacement of the drum 3 and the cover 7 with respect to the bearing faces 40A and 407 of the bung 4.
  • the fretting of the barrel assembly relative to the blank is framed by the contacts between the opposite bearing faces 49A and 49B of the plug 4, with the stones 702 of the plate 10 and 302 of the bridge 11 respectively.
  • the bung 4 is advantageously made of several coaxial parts to simplify its machining.
  • the figure 16 illustrates a variant of the version of the figure 14 .
  • the antics are repeated in the same way.
  • the guides are different with the pivoting of the drum 3 and the cover 7 are directly in the blank, respectively at the bridge 11 and the plate 10. This provision provides better control axial beat, because of the enlargement of the pivot diameter.
  • the invention also relates to a timepiece 1000 comprising at least one watch movement 100 and / or at least one such barrel assembly 1 for energy storage with an incorporated input, or a ratchet 12 mounted solidarity pivoting the bung 4, or by a toothing drum 13 mounted pivotally integral with the drum 3, and an output constituted respectively, or by a toothing drum 13 mounted to pivotally attached to the drum 3, or by a ratchet 12 mounted pivotally integral with the bung 4.
  • the invention provides the means for making a bung of very small diameter, and thus increase the storage capacity and the power reserve of a movement mechanism or ringing, or the like.
  • the control of lovemaking is important because it allows to limit the wear of the components, and to increase the reliability of the mechanisms.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Adornments (AREA)
  • Springs (AREA)
  • Closures For Containers (AREA)
  • Micromachines (AREA)

Description

Le document WO2012 / 010941 au nom de ROLEX décrit un alliage métallique amorphe convenant à la réalisation de ressorts de barillet.The document WO2012 / 010941 in the name of ROLEX discloses an amorphous metal alloy suitable for making barrel springs.

Le document GB 647 783 au nom de ELGIN décrit un alliage à grande résistance élastique, applicable aux ressorts chronométriques.The document GB 647 783 in the name of ELGIN describes an alloy with high elastic resistance, applicable to the chronometric springs.

Résumé de l'inventionSummary of the invention

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

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

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

A cet effet, l'invention concerne un mouvement d'horlogerie, comportant au moins une platine à entraxe fixe d'un pont portant en commun un ensemble barillet d'horlogerie, lequel ensemble barillet comporte au moins un ressort moteur de barillet monté entre, à une première extrémité un de barillet disposé à côté dudit pont, et à une deuxième extrémité une surface de réception que comporte une bonde de barillet solidaire en pivotement d'un rochet et coaxiale audit tambour autour d'un axe de pivotement commun, ledit ensemble barillet comportant du côté de ladite platine un couvercle fixé sur ledit tambour, ledit couvercle et ledit tambour constituant ensemble une chambre enfermant ledit ressort, caractérisé en ce que 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, et ayant un rapport largeur/épaisseur compris entre 9 et 21, et en ce que le rayon maximal de ladite bonde, réalisée en acier ou en acier inoxydable, par rapport audit axe de pivotement est inférieur à neuf fois l'épaisseur maximale dudit ressort, et encore caractérisé en ce que ledit mouvement comporte des moyens de limitation d'ébat comportant au moins une rondelle de calage indépendante de ladite bonde et guidée par une portée que comporte ladite bonde et interposée entre d'une part ladite platine ou respectivement ledit pont, et d'autre part ledit couvercle ou respectivement ledit tambour.For this purpose, the invention relates to a clockwork movement, comprising at least one plate with a fixed spacing of a bridge carrying in common a watch drum assembly, which barrel assembly comprises at least one mainspring spring mounted between, at a first end a barrel disposed adjacent said bridge, and at a second end a receiving surface that comprises a barrel plug pivotally attached to a ratchet and coaxial with said drum about a common pivot axis, said assembly barrel having on the side of said platen a lid attached to said drum, said lid and said drum together constituting a chamber enclosing said spring, characterized in that said spring is made of a cobalt-nickel-chromium-based multiphase alloy comprising 44 at 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% % of tit ane, 0 to 1% beryllium, and Young's modulus of 200 to 240 GPa and a shear modulus of 80 to 100 GPa, and having a width to thickness ratio of 9 to 21, and that the maximum radius of said bung, made of steel or stainless steel, with respect to said pivot axis is less than nine times the maximum thickness of said spring, and further characterized in that said movement comprises means of limitation of frolicking comprising at least one setting washer independent of said bung and guided by a bearing that comprises said bung and interposed between said plate or said bridge, and said lid or said drum respectively.

Domaine de l'inventionField of the invention

L'invention concerne un concerne un mouvement d'horlogerie, comportant au moins une platine à entraxe fixe d'un pont portant en commun un ensemble barillet d'horlogerie, lequel ensemble barillet comporte au moins un ressort moteur de barillet monté entre, à une première extrémité un de barillet disposé à côté dudit pont, et à une deuxième extrémité une surface de réception que comporte une bonde de barillet solidaire en pivotement d'un rochet et coaxiale audit tambour autour d'un axe de pivotement commun, ledit ensemble barillet comportant du côté de ladite platine un couvercle fixé sur ledit tambour, ledit couvercle et ledit tambour constituant ensemble une chambre enfermant ledit ressort.The invention relates to a clockwork movement, comprising at least one plate with fixed spacing of a bridge carrying a common watch drum assembly, which barrel assembly comprises at least one mainspring barrel mounted between, at a first end of a barrel disposed next to said bridge, and at a second end a receiving surface that comprises a barrel plug pivotally attached to a ratchet and coaxial with said drum about a common pivot axis, said barrel assembly comprising on the side of said platen a lid fixed on said drum, said lid and said drum together forming a chamber enclosing said spring.

L'invention concerne encore une pièce d'horlogerie comportant au moins un tel mouvement d'horlogerie.The invention also relates to a timepiece comprising at least one such watch movement.

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

Arrière-plan de l'inventionBackground of the invention

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

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

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

Dans l'architecture classique des barillets, un rochet est monté axialement sur un axe de barillet ou sur une bonde, par l'intermédiaire d'un carré, le rochet étant généralement fixé par une vis axiale. La dimension de cette vis et celle du carré conditionnent donc un diamètre minimal d'une portée de pivotement. Un épaulement jointif à cette portée de pivotement limite l'ébat axial de l'arbre ou de la bonde par rapport à une platine ou à un pont porteur d'une pierre ou similaire.In the 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 joined to this pivoting surface limits axial fretting of the shaft or the bung relative to a plate or a bridge carrying a stone or the like.

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

Le document US 996 499 A au nom de MARSHALL décrit un barillet où le rochet est solidaire d'un couvercle monobloc qui comporte le crochet d'accrochage de la spire externe du spiral. Ce couvercle est guidé par une portée dans la platine, et comporte un alésage dans lequel est guidée l'extrémité de l'arbre de barillet. Ce dernier comporte une portée principale cylindrique, qui guide le tambour, par l'intermédiaire de deux paliers. Cette portée est limitée par un épaulement de butée, qui maintient le tambour à distance du pont, dans lequel pivote une extrémité de l'arbre de barillet. Tandis que le fond comporte un épaulement agencé pour limiter sa course par rapport à la platine. Le ressort de barillet n'est donc pas monté entre l'arbre et le tambour, mais entre le tambour et le couvercle.The document US 996 499 A in the name of MARSHALL describes a barrel where the ratchet is secured to a one-piece lid which includes the hook hook of the outer coil of the spiral. This cover is guided by a bearing in the plate, and has a bore in which is guided the end of the barrel shaft. The latter has a main cylindrical scope, which guides the drum, via two bearings. This range is limited by a stop shoulder, which keeps the drum away from the deck, in which one end of the barrel shaft pivots. While the bottom has a shoulder arranged to limit its stroke relative to the plate. The barrel spring is therefore not mounted between the shaft and the drum, but between the drum and the lid.

Le document CH 318 898 A au nom de JUNGHANS décrit un barillet qui comporte un tambour à canon sur lequel pivote la bonde, qui est liée par un carré à l'arbre de barillet pivotant entre pont et platine, et est clavetée au rochet. L'arbre porte, du côté opposé au rochet, une roue dentée coopérant avec le mécanisme de remontage automatique. Un filet sur un pont limite le débattement de cette roue dentée.The document CH 318 898 A in the name of JUNGHANS describes a barrel which comprises a barrel drum on which pivots the bung, which is connected by a square to the barrel shaft pivoting between bridge and platinum, and is keyed to the ratchet. The shaft carries, on the opposite side to the ratchet, a toothed wheel co-operating with the automatic winding mechanism. A net on a bridge limits the travel of this toothed wheel.

Le document US 1 033 020 A au nom de KERN décrit un barillet avec un couvercle de fermeture du tambour fixé à celui-ci par baïonnette et goupille, ce couvercle portant la denture.The document US 1,033,020 A in the name of KERN discloses a barrel with a closure lid of the drum attached thereto by bayonet and pin, the lid bearing the toothing.

Le document EP 1542 098 A2 au nom de LANGE concerne une configuration particulière où le tambour est guidé par sa périphérie dans un alésage du pont, et où ce tambour comporte une surface annulaire débordante, dite régions de support, qui s'étend radialement au-delà de l'alésage de guidage du tambour, et de façon à permettre un appui, ou une butée, du tambour sur le pont.The document EP 1542 098 A2 in the name of LANGE relates to a particular configuration where the drum is guided by its periphery in a bore of the bridge, and wherein this drum has an annular projecting surface, said support regions, which extends radially beyond the guide bore of the drum, and so as to allow a support, or a stop, of the drum on the bridge.

Selon une caractéristique de l'invention, ledit tambour pivote dans ledit pont ou dans un guidage porté par ledit pont, et comporte une portée d'appui axiale agencée pour coopérer en butée de limitation de course dudit tambour avec une surface complémentaire de butée que comporte ledit pont ou ledit guidage, en ce que ledit couvercle pivote dans ladite platine ou dans un guidage porté par ladite platine, et comporte une portée d'appui axiale agencée pour coopérer en butée de limitation de course dudit couvercle avec une surface complémentaire de butée que comporte ladite platine ou ledit guidage, et en ce que ladite bonde comporte une première portée pivotant dans un alésage dudit tambour, et une deuxième portée pivotant dans un alésage dudit couvercle, et en ce que le débattement axial relatif entre ladite bonde et ledit tambour est limité par une première surface de butée de ladite bonde et une première surface de butée complémentaire interne dudit tambour, et le débattement axial relatif entre ladite bonde et ledit couvercle est limité par une deuxième surface de butée de ladite bonde et une deuxième surface de butée complémentaire interne dudit couvercle.According to a characteristic of the invention, said drum pivots in said bridge or in a guide carried by said bridge, and comprises an axial bearing surface arranged to cooperate in limiting travel of said drum with a complementary abutment surface that includes said bridge or said guidance, in said cover rotates in said platen or in a guide carried by said platen, and comprises an axial bearing surface arranged to cooperate in abutment limit of stroke of said cover with a complementary abutment surface that includes said platen or said guide, and in that said bung comprises a first pivoting bearing in a bore of said drum, and a second pivoting bearing in a bore of said lid, and in that the relative axial displacement between said bung and said drum is limited by a first abutment surface of said bung and a first internal complementary abutment surface of said drum, and the relative axial displacement between said bung and said lid is limited by a second abutment surface of said bung and a second complementary abutment surface internal to said lid.

Selon une caractéristique de l'invention, ledit ensemble barillet comporte des moyens de limitation de l'ébat longitudinal entre ledit ensemble barillet et au moins ladite platine ou ledit pont.According to a characteristic of the invention, said barrel assembly comprises means for limiting the longitudinal frust between said barrel assembly and at least said plate or said bridge.

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

Description sommaire des dessinsBrief description of the drawings

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

  • la figure 1 représente, de façon schématisée et en coupe dans un plan passant par son axe de pivotement, un barillet d'horlogerie, selon une variante de l'invention,
  • la figure 2 représente, de façon schématisée et en coupe dans un plan passant par son axe de pivotement, un barillet avec une bonde classique, et la figure 3 illustre une transformation de cet ensemble barillet et de cette bonde selon une variante de l'invention avec une rondelle de calage,
  • les figures 4 à 6 représentent, de façon schématisée, partielle, et en coupe dans un plan passant par son axe de pivotement, un barillet selon des variantes de l'invention, avec des appuis sous forme de filets, respectivement entre un pont et le rochet sur la figure 4, et entre d'une part un pont porteur d'un filet et le tambour, et d'autre part entre une platine et le couvercle du barillet, ce couvercle étant porteur d'un filet, sur la figure 5, et entre le tambour et un pont avec filet sur le tambour sur la figure 6,
  • la figure 7 représente, de façon schématisée et en coupe dans un plan passant par son axe de pivotement, un barillet avec une bonde classique, et la figure 8 illustre une transformation de cet ensemble barillet et de cette bonde selon une variante de l'invention avec une bonde étagée en deux parties,
  • la figure 9 représente, sous forme d'un schéma-blocs, une pièce d'horlogerie comportant un mouvement et un ensemble barillet selon l'invention,
  • les figures 10 à 16 représentent, de façon schématisée et en coupe dans un plan passant par leur axe de pivotement, différentes variantes de barillet d'horlogerie selon l'invention,
  • la figure 10 avec bonde monobloc guidée dans deux pierres de la platine et d'un pont, cette bonde portant tambour et couvercle, le tambour présentant sur une face externe un filet agencé pour coopérer en appui avec la pierre du pont supérieur,
  • la figure 11 est analogue à la figure 10, et comporte une rondelle de réglage chassée sur la bonde et agencée pour venir en appui sur une face du couvercle,
  • la figure 12 avec bonde monobloc guidée dans deux pierres de la platine et d'un pont, cette bonde portant tambour et couvercle, le tambour présentant sur une face externe un filet agencé pour coopérer en appui avec la pierre du pont supérieur, et le couvercle présentant un filet similaire pour coopérer avec la pierre de platine, le ressort comportant une première spire élargie,
  • la figure 13 avec bonde en deux parties, dont l'une appelée arbre de barillet est guidée dans une pierre d'un pont et porte le tambour, et dont l'autre appelée bonde est guidée dans une pierre d'une platine et porte le couvercle, le couvercle présentant sur une face externe un filet agencé pour coopérer en appui avec la pierre de la platine, le ressort comportant une spire élargie, autre que la première spire,
  • la figure 14 analogue à la figure 12 avec bonde monobloc guidée dans deux pierres de la platine et d'un pont, cette bonde portant tambour et couvercle, le tambour présentant sur une face externe un filet agencé pour coopérer en appui
Other characteristics and advantages of the invention will appear better on reading the detailed description which follows, with reference to the appended drawings, in which:
  • the figure 1 represents, schematically and in section in a plane passing through its pivot axis, a watch cylinder, according to a variant of the invention,
  • the figure 2 represents, schematically and in section in a plane passing through its pivot axis, a barrel with a conventional bung, and the figure 3 illustrates a transformation of this barrel assembly and this bung according to a variant of the invention with a wedging washer,
  • the Figures 4 to 6 represent, schematically, partially, and in section in a plane passing through its pivot axis, a cylinder according to variants of the invention, with supports in the form of nets, respectively between a bridge and the ratchet on the figure 4 , and between on the one hand a bridge carrying a net and the drum, and on the other hand between a plate and the lid of the barrel, this lid being a carrier of a net, on the figure 5 , and between the drum and a deck with net on the drum on the figure 6 ,
  • the figure 7 represents, schematically and in section in a plane passing through its pivot axis, a barrel with a conventional bung, and the figure 8 illustrates a transformation of this barrel assembly and this bung according to a variant of the invention with a bored plug in two parts,
  • the figure 9 represents, in the form of a block diagram, a timepiece comprising a movement and a barrel assembly according to the invention,
  • the Figures 10 to 16 show, schematically and in section in a plane passing through their pivot axis, different watch cylinder variants according to the invention,
  • the figure 10 with monobloc plug guided in two stones of the plate and a bridge, this bung carrying drum and cover, the drum having on one external face a net arranged to cooperate in support with the stone of the upper bridge,
  • the figure 11 is analogous to the figure 10 , and comprises a setting washer driven on the bung and arranged to bear on one face of the cover,
  • the figure 12 with monobloc plug guided in two stones of the plate and a bridge, this bung carrying drum and cover, the drum having on one external face a net arranged to cooperate in support with the stone of the upper deck, and the cover having a net similar to cooperate with the platinum stone, the spring having a first enlarged turn,
  • the figure 13 with a bung in two parts, of which one called barrel shaft is guided in a stone of a bridge and carries the drum, and whose other called bonde is guided in a stone of a plate and carries the lid, the cover having on one external face a net arranged to cooperate in support with the stone of the plate, the spring comprising an enlarged turn, other than the first turn,
  • the figure 14 analogous to figure 12 with monoblock plug guided in two stones of the plate and a bridge, this bung carrying drum and lid, the drum having on one external face a net arranged to cooperate in support

avec la pierre du pont supérieur, et le couvercle présentant un filet similaire pour coopérer avec la pierre de platine, le tambour et le couvercle serrés sur des épaulements de la bonde, le rochet étant vissé sur la bonde qui est filetée,

  • la figure 15 avec bonde monobloc guidée dans deux pierres de la platine et d'un pont, cette bonde portant tambour et couvercle et comportant une collerette agencée pour coopérer en appui avec une face interne du tambour,
  • la figure 16 analogue à la figure 14 avec bonde monobloc portant tambour et couvercle, lesquels sont guidés chacun dans une pierre de la platine et d'un pont, le tambour présentant sur une face externe un filet agencé pour coopérer en appui avec la pierre du pont supérieur, et le couvercle présentant un filet similaire pour coopérer avec la pierre de platine, le tambour et le couvercle serrés sur des épaulements de la bonde, le rochet étant vissé sur la bonde qui est filetée.
with the stone of the upper deck, and the cover having a similar net to cooperate with the platinum stone, the drum and the cover clamped on shoulders of the bung, the ratchet being screwed on the bung which is threaded,
  • the figure 15 with monobloc plug guided in two stones of the plate and a bridge, this bung carrying drum and cover and having a flange arranged to cooperate in support with an inner face of the drum,
  • the figure 16 analogous to figure 14 with one-piece bung carrying drum and lid, which are each guided in a stone of the plate and a bridge, the drum having on one outer face a net arranged to cooperate in support with the stone of the upper deck, and the cover having a similar net to cooperate with the platinum stone, the drum and the cover tight on shoulders of the bung, the ratchet being screwed on the bung which is threaded.

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

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

Dans une réalisation préférée et non limitative, l'invention concerne un mouvement d'horlogerie 100, comportant au moins une platine 10 à entraxe fixe d'un pont 11 portant en commun un ensemble barillet 1 d'horlogerie.In a preferred and nonlimiting embodiment, the invention relates to a clockwork movement 100, comprising at least one plate 10 with a fixed spacing of a bridge 11 carrying in common a barrel 1 clock assembly.

Cet ensemble barillet 1 comporte au moins un ressort moteur 2 de barillet monté entre, à une première extrémité 21 un tambour 3 de barillet disposé à côté du pont 11, et à une deuxième extrémité 22 une surface de réception 5 que comporte une bonde 4 de barillet solidaire en pivotement d'un rochet 12 et coaxiale au tambour 3 autour d'un axe de pivotement D commun. L'ensemble barillet 1 comporte du côté de la platine 10 un couvercle 7 fixé sur le tambour 3, ce couvercle 7 et ce tambour 3 constituant ensemble une chambre 32 enfermant le ressort 2.This barrel assembly 1 comprises at least one mainspring 2 of barrel mounted between, at a first end 21 a barrel drum 3 disposed adjacent to the bridge 11, and at a second end 22 a receiving surface 5 that includes a plug 4 of barrel integral pivoting a ratchet 12 and coaxial with the drum 3 about a common pivot axis D. The barrel assembly 1 comprises, on the side of the plate 10, a cover 7 fixed on the drum 3, this cover 7 and this drum 3 constituting together a chamber 32 enclosing the spring 2.

Différentes variantes cumulatives sont illustrées par les figures.
Selon l'invention, le ressort 2 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 2 a un rapport largeur/épaisseur compris entre 3 et 23, et plus particulièrement entre 9 et 21.Different cumulative variants are illustrated by the figures.
According to the invention, the spring 2 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 2 has a width / thickness ratio of between 3 and 23, and more particularly between 9 and 21.

Et le rayon maximal de la bonde 4, réalisée en acier ou en acier inoxydable, par rapport à l'axe de pivotement D est inférieur à neuf fois l'épaisseur maximale du ressort 2. En particulier les réalisations illustrées permettent d'obtenir un rapport voisin de cinq.And the maximum radius of the bung 4, made of steel or stainless steel, relative to the pivot axis D is less than nine times the maximum thickness of the spring 2. In particular the embodiments illustrated make it possible to obtain a ratio neighbor of five.

Encore, le mouvement 100 comporte des moyens de limitation d'ébat. Dans la variante de la figure 3, ces moyens de limitation comportent des moyens de calage ou de limitation de course comportant une rondelle de calage 70 interposée entre d'une part une platine 10 ou un pont 11, et d'autre part le tambour 3 ou un couvercle 7 fixé sur le tambour 3 pour constituer avec lui une chambre 32 enfermant le ressort 2. Cette rondelle de calage 70 est indépendante de la bonde 4 et guidée par une portée 44 que comporte cette bonde 4 et interposée entre d'une part la platine 10 ou respectivement le pont 11, et d'autre part le couvercle 7 ou respectivement le tambour 3.Again, motion 100 includes frost control means. In the variant of the figure 3 these limiting means comprise means for setting or limiting the stroke comprising a wedging washer 70 interposed between a plate 10 or a bridge 11, on the one hand, and the drum 3 or a cover 7 fixed on the other side, drum 3 to constitute with it a chamber 32 enclosing the spring 2. This wedge washer 70 is independent of the bung 4 and guided by a bearing 44 that includes this bung 4 and interposed between the first plate 10 or the bridge respectively 11, and on the other hand the lid 7 or the drum 3 respectively.

Dans une variante visible sur la figure 3, de préférence, cette au moins une rondelle de calage 70 est guidée par une portée 44 que comporte la bonde 4, et plus particulièrement est chassée sur cette portée 44.In a variant visible on the figure 3 preferably, this at least one wedging washer 70 is guided by a bearing 44 that includes the bung 4, and more particularly is driven on this bearing surface 44.

Dans une autre variante, les moyens de limitation d'ébat comportent une première rondelle de calage 70 interposée entre le pont 11 et le tambour 3, et une deuxième telle rondelle de calage 70 interposée entre la platine 10 et le couvercle 7.In another variant, the luff limiting means comprise a first wedging washer 70 interposed between the bridge 11 and the drum 3, and a second such shim washer 70 interposed between the plate 10 and the lid 7.

Dans une autre variante, la rondelle de calage 70 est indépendante, d'une part d'un arbre de barillet 18 porteur de la bonde 4 ou confondu avec elle, et d'autre part du couvercle 7, et est interposée entre la platine 10 et le couvercle 7.In another variant, the shim washer 70 is independent, on the one hand of a barrel shaft 18 carrying the bung 4 or merging with it, and on the other hand of the lid 7, and is interposed between the plate 10 and the lid 7.

Dans une variante particulière, la bonde 4 est pivotée directement dans la platine 10 et le pont 11.In a particular variant, the plug 4 is pivoted directly into the plate 10 and the bridge 11.

Dans une autre variante, visible sur les figures 1 et 16, la bonde 4 est pivotée indirectement dans la platine 10 et le pont 11, par l'intermédiaire respectivement du couvercle 7 et du tambour 3.In another variant, visible on the figures 1 and 16 , the plug 4 is pivoted indirectly in the plate 10 and the bridge 11, respectively via the lid 7 and the drum 3.

Dans la variante illustrée par la figure 8, la bonde 4 comporte deux parties 4A, 4B, coaxiales dont l'une 4B est pivotée directement dans le pont 11 et comporte une portée 43 de guidage d'un alésage 35 du tambour 3, et dont l'autre 4A est pivotée directement dans la platine 10 et porte un crochet 41 pour l'accrochage du ressort 2.In the variant illustrated by the figure 8 , the plug 4 comprises two coaxial portions 4A, 4B, one of which 4B is pivoted directly in the bridge 11 and has a bearing surface 43 for guiding a bore 35 of the drum 3, and the other 4A of which is pivoted directly into the plate 10 and carries a hook 41 for hooking the spring 2.

Dans cette même variante de la figure 8, le tambour 3 pivote dans le pont 11 ou dans un guidage 403 porté par le pont 11, et il comporte une portée d'appui axiale 39 agencée pour coopérer en butée de limitation de course du tambour 3 avec une surface complémentaire de butée 119 que comporte le pont 11 ou ce guidage 403. Le couvercle 7 pivote dans la platine 10 ou dans un guidage 108 porté par la platine 10, et il comporte une portée d'appui axiale 79 agencée pour coopérer en butée de limitation de course du couvercle 7 avec une surface complémentaire de butée 109 que comporte la platine 10 ou le guidage 108.In this same variant of the figure 8 , the drum 3 pivots in the bridge 11 or in a guide 403 carried by the bridge 11, and it comprises an axial bearing surface 39 arranged to cooperate as a limiting limit of travel of the drum 3 with a complementary abutment surface 119 that comprises the bridge 11 or this guide 403. The lid 7 pivots in the plate 10 or in a guide 108 carried by the plate 10, and it comprises an axial bearing surface 79 arranged to cooperate in limiting the stroke of the cover 7 with a complementary abutment surface 109 that comprises the plate 10 or the guide 108.

La bonde 4 comporte une première portée 43 pivotant dans un alésage 35 du tambour 3, et une deuxième portée 44 pivotant dans un alésage 75 du couvercle 7. Le débattement axial relatif entre la bonde 4 et le tambour 3 est limité par une première surface de butée 403 de la bonde 4 et une première surface de butée complémentaire 31 interne du tambour 3. Le débattement axial relatif entre la bonde 4 et le couvercle 7 est limité par une deuxième surface de butée 407 de la bonde 4 et une deuxième surface de butée complémentaire 71 interne du couvercle 7.The bung 4 comprises a first bearing surface 43 pivoting in a bore 35 of the drum 3, and a second bearing surface 44 pivoting in a bore 75 of the lid 7. The relative axial displacement between the bung 4 and the drum 3 is limited by a first surface of stop 403 of the bung 4 and a first complementary abutment surface 31 inside the drum 3. The relative axial displacement between the bung 4 and the cover 7 is limited by a second abutment surface 407 of the bung 4 and a second abutment surface complementary 71 internal cover 7.

Avantageusement, tel que visible aux figures 1 et 16, cette portée d'appui axiale 39 du tambour 3 ou/et cette portée d'appui axiale 79 du couvercle 7 est constituée par un filet 202, 207, pour réduire la surface de contact. Ce filet 202, 207, vient en appui sur un guidage 403, 108, porté par le pont 11 ou la platine 10.Advantageously, as visible to figures 1 and 16 this axial bearing surface 39 of the drum 3 or / and this axial bearing surface 79 of the cover 7 is constituted by a net 202, 207, to reduce the contact surface. This net 202, 207, comes to bear on a guide 403, 108, carried by the bridge 11 or the plate 10.

Avantageusement, tel que visible notamment à la figure 8, le mouvement 100 comporte des moyens de limitation de l'ébat longitudinal 6 entre l'ensemble barillet 1 et au moins la platine 10 ou le pont 11.Advantageously, as visible especially in the figure 8 , the movement 100 comprises means for limiting the longitudinal gap 6 between the barrel assembly 1 and at least the plate 10 or the bridge 11.

Dans une variante, ces moyens de limitation comportent des moyens de guidage en pivotement directement dans la platine 10 ou/et dans le pont 11 du tambour 3 et du couvercle 7.In a variant, these limiting means comprise pivoting guide means directly in the plate 10 and / or in the bridge 11 of the drum 3 and the cover 7.

Ces moyens de limitation comportent avantageusement des moyens de calage ou de limitation de course, par rapport à la platine 10 ou au pont 11, du tambour 3 ou/et du couvercle 7.These limiting means advantageously comprise means for setting or limiting the stroke, with respect to the plate 10 or to the bridge 11, of the drum 3 and / or of the lid 7.

Dans la variante illustrée à la figure 6, les moyens de limitation comportent au moins un ressaut 202, qui est saillant d'une surface externe 30 du tambour 3 face à la platine 10 ou au pont 11, ou/et, tel que visible à la figure 5, au moins un ressaut 102 saillant d'une surface externe de la platine 10 ou du pont 11 et faisant face à une surface externe 30 du tambour 3.In the variant illustrated in figure 6 the limiting means comprise at least one projection 202, which protrudes from an outer surface 30 of the drum 3 facing the plate 10 or the bridge 11, and / or, as visible in FIG. figure 5 at least one projection 102 projecting from an outer surface of the plate 10 or the bridge 11 and facing an outer surface 30 of the drum 3.

Dans une variante illustrée à la figure 5, les moyens de limitation comportent au moins un ressaut 207 saillant d'une surface externe 76 du couvercle 7, face à la platine 10 ou au pont 11, ou/et au moins un ressaut 107 saillant d'une surface externe de la platine 10 ou du pont 11 et faisant face à une surface externe 76 du couvercle 7.In a variant illustrated in figure 5 , the limiting means comprise at least one projection 207 projecting from an outer surface 76 of the cover 7, facing the plate 10 or the bridge 11, and / or at least one projection 107 projecting from an outer surface of the plate 10 or bridge 11 and facing an outer surface 76 of the cover 7.

Les moyens de limitation sont avantageusement complétés, tel que visible dans la variante de la figure 5, par au moins un ressaut 201 saillant d'une surface externe 121 du rochet 12 porté par la bonde 4 face à la platine 10 ou au pont 11, ou/et par au moins un ressaut 101 saillant d'une surface externe de la platine 10 ou du pont 11 faisant face à une surface externe 121 du rochet 12.The limiting means are advantageously completed, as can be seen in the variant of FIG. figure 5 by at least one projection 201 projecting from an external surface 121 of the ratchet 12 carried by the bung 4 facing the plate 10 or the bridge 11, and / or by at least one projection 101 projecting from an external surface of the plate 10 or the bridge 11 facing an outer surface 121 of the ratchet 12.

Dans une réalisation particulière, la surface de réception 5 est une surface de révolution par rapport à l'axe de pivotement D.In a particular embodiment, the receiving surface 5 is a surface of revolution with respect to the pivot axis D.

Dans une variante d'exécution, le ressort 2 est fixé à la bonde 4 par friction.In an alternative embodiment, the spring 2 is fixed to the bung 4 by friction.

Dans une réalisation avantageuse et préférée, le ressort 2 forme avec la bonde 4 un sous-ensemble ressort-bonde monobloc soudé ou brasé, ou similaire. Ces deux variantes de fixation par friction ou soudage ou similaire permettent de s'affranchir du crochet d'accrochage du ressort.In an advantageous and preferred embodiment, the spring 2 forms with the bung 4 a soldered or brazed monoblock spring-binder subassembly, or the like. These two variants of fixing by friction or welding or the like make it possible to get rid of the snap hook of the spring.

L'invention prend ainsi en compte plusieurs solutions pour arriver à une diminution du diamètre de bonde, qui permette d'augmenter l'énergie stockée dans le barillet.The invention thus takes into account several solutions to achieve a decrease in the bung diameter, which allows to increase the energy stored in the barrel.

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

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

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

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

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

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

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

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

Deux types d'ébats sont à considérer :

  • l'ébat du barillet "seul", d'une part,
  • l'ébat du barillet avec la ou les ébauches, ci-après réduites pour la simplicité de l'exposé et de façon non limitative à une platine et à un pont, d'autre part.
Two types of frolics are to be considered:
  • the frenzy of the barrel "alone", on the one hand,
  • the frolicking of the barrel with the blank or drafts, hereinafter reduced for the simplicity of the presentation and in a nonlimiting manner to a plate and a bridge, on the other hand.

Ces ébats s'additionnent et il faut donc tenir compte de ces deux ébats dans la construction.These antics add up and we must take into account these two frolics in the construction.

L'invention se situe d'emblée dans la recherche du diamètre de bonde le plus réduit possible. Dans ce cas, l'invention s'attache à proposer des solutions nouvelles pour reprendre soit l'un, soit l'autre de ces ébats, ou bien les deux.The invention lies immediately in the search for the smallest possible bung diameter. In this case, the invention is aimed at proposing new solutions for taking back one or the other of these antics, or both.

A cet effet, l'invention est conçue pour permettre la mise en oeuvre de solutions alternatives, pour la reprise de l'ébat du barillet "seul":

  • un contact entre le tambour de barillet ou/et le couvercle de barillet d'une part, et d'autre part une portée de la bonde, ou de l'arbre de barillet selon l'architecture de la bonde ;
  • la mise en contact, en une ou plusieurs surfaces, du ressort de barillet d'une part, avec d'autre part le tambour de barillet ou/et le couvercle de barillet.
For this purpose, the invention is designed to allow the implementation of alternative solutions, for the recovery of the frog barrel "alone":
  • a contact between the barrel drum and / or the barrel cover on the one hand, and on the other hand a range of the bung, or the barrel shaft according to the architecture of the bung;
  • contacting, in one or more surfaces, the mainspring on the one hand, and on the other hand the barrel drum and / or the barrel lid.

Dans ce mode de réalisation avec contact entre le ressort et une ou plusieurs des surfaces internes de la chambre dans laquelle est enfermé ce ressort (que cette chambre soit constituée par un tambour et un couvercle, ou par un tambour et un rochet, ou encore par un tambour et un pont), plusieurs variantes sont réalisables :

  • la première spire interne du ressort, en contact avec la surface de réception de la bonde, est plus haute que les autres spires ;
  • une autre spire, suffisamment éloignée de la bonde pour ne pas coopérer avec une portée de la bonde, mais pour coopérer directement avec une surface intérieure du tambour, ou du couvercle, ou similaire, est plus haute que les autres spires ;
  • certaines spires sont est plus hautes que les autres spires ;
  • au moins une spire de hauteur supérieure aux autres est rapportée sur le ressort ;
  • ou bien, pour assurer un contact de limitation d'ébat entre le ressort et une paroi interne de la chambre, le tambour ou/et le couvercle comporte ou comportent une ou plusieurs protubérances, ressauts, filets ou similaires, sur une face intérieure tournée vers le ressort. On appelle ici « filet » une surface, de préférence de révolution, saillante depuis une surface, pour coopérer en appui sur une surface voisine d'un autre composant pour maintenir ces surfaces à distance l'une de l'autre lorsque le rattrapage des jeux du mécanisme, sous l'effet de la pesanteur ou d'une accélération due à un mouvement de l'utilisateur, pousse ces composants l'un vers l'autre.
In this embodiment with contact between the spring and one or more of the internal surfaces of the chamber in which this spring is enclosed (that this chamber is constituted by a drum and a lid, or by a drum and a ratchet, or by a drum and a bridge), several variants are possible:
  • the first inner turn of the spring, in contact with the receiving surface of the bung, is higher than the other turns;
  • another turn, sufficiently far from the bung to not cooperate with a range of the bung, but to cooperate directly with an inner surface of the drum, or cover, or the like, is higher than the other turns;
  • some turns are higher than the other turns;
  • at least one turn higher than the others is reported on the spring;
  • or, to provide a frost-limiting contact between the spring and an inner wall of the chamber, the drum and / or the cover comprises or comprise one or more protuberances, projections, threads or the like, on an inner face facing towards the spring. Here, a "surface" is a surface, preferably of revolution, protruding from a surface, for cooperating against a surface adjacent to another component to maintain these surfaces at a distance from each other when the catching up of games the mechanism, under the effect of gravity or acceleration due to a movement of the user pushes these components towards each other.

En ce qui concerne la reprise de l'ébat du barillet complet avec l'ébauche dans laquelle est incorporé cet ensemble barillet, l'invention propose plusieurs variantes :

  • un contact entre d'une part une portée de la bonde ou de l'arbre de barillet (selon la constitution de la bonde), et d'autre part une pierre ou un élément de guidage que comporte une platine ou un pont de l'ébauche;
  • un contact entre d'une part le tambour de barillet ou/et le couvercle de barillet, et d'autre part une pierre, ou un moyen de guidage similaire, chassée dans une platine ou un pont, par l'intermédiaire d'une ou plusieurs protubérances, ressauts, filets ou similaires, ménagée ou ménagées sur une face du tambour ou/et du couvercle
  • un contact entre d'une part le tambour de barillet ou/et le couvercle de barillet, et d'autre part une pierre, ou un moyen de guidage similaire, chassée dans une platine ou un pont, par l'intermédiaire d'une ou plusieurs protubérances, ressauts, filets ou similaires, ménagée ou ménagées sur une face de la platine ou/et du pont.
As regards the recovery of the frolicking of the complete barrel with the blank in which this barrel assembly is incorporated, the invention proposes several variants:
  • a contact between on the one hand a range of the bung or the barrel shaft (according to the constitution of the bung), and secondly a stone or a guide element that comprises a plate or a bridge of the draft;
  • contact between, on the one hand, the barrel drum and / or the barrel lid, and on the other hand a stone, or similar guiding means, driven into a platen or a bridge, via one or a plurality of protuberances, projections, threads or the like, arranged or arranged on one face of the drum and / or the cover
  • contact between, on the one hand, the barrel drum and / or the barrel lid, and on the other hand a stone, or similar guiding means, driven into a platen or a bridge, via one or several protuberances, projections, nets or the like, arranged or formed on one side of the plate and / or the bridge.

Les figures illustrent certaines réalisations particulières parmi les multiples combinaisons réalisables selon l'invention.The figures illustrate certain particular embodiments among the multiple combinations that can be made according to the invention.

Selon l'invention ce mouvement 100 comporte des moyens de limitation de l'ébat longitudinal 6 entre l'ensemble barillet 1 et au moins une platine 10 ou un pont 11 porteuse ou porteur de cet ensemble barillet 1.According to the invention this movement 100 comprises means for limiting the longitudinal gap 6 between the barrel assembly 1 and at least one plate 10 or a bridge 11 carrying or carrying this barrel assembly 1.

Ces moyens de limitation sont :

  • ou bien constitués par des moyens de calage ou de limitation de course, par rapport à la platine 10 ou au pont 11, du tambour 3 ou/et d'un couvercle 7 fixé sur le tambour 3 pour constituer avec lui une chambre 32 enfermant le ressort 2,
  • ou bien constitués par des moyens de guidage en pivotement, directement dans une platine 10 ou/et dans un pont 11, du tambour 3 ou/et d'un tel couvercle 7 fixé sur le tambour 3 pour constituer avec lui une chambre 32 enfermant le ressort 2,
  • ou bien constitués par la combinaison de ces moyens de calage ou de limitation de course et de ces moyens de guidage en pivotement, selon la direction de l'axe de pivotement D, pour limiter l'ébat entre l'ensemble barillet 1 et cette ou ce au moins une platine 10 ou pont 11.
These limitation means are:
  • or constituted by means for setting or limiting the stroke, with respect to the plate 10 or to the bridge 11, of the drum 3 and / or of a lid 7 fixed on the drum 3 to constitute with it a chamber 32 enclosing the spring 2,
  • or else constituted by pivotally guiding means, directly in a plate 10 and / or in a bridge 11, of the drum 3 or / and of such a cover 7 fixed on the drum 3 to form with it a chamber 32 enclosing the spring 2,
  • or else constituted by the combination of these means for setting or limiting the stroke and for these pivoting guide means, in the direction of the pivot axis D, to limit the play between the barrel assembly 1 and this or this at least one plate 10 or bridge 11.

Les figures 4 à 6 illustrent des appuis sous forme de filets, respectivement entre un pont 11 et le rochet 12 sur la figure 4, et entre d'une part un pont 11 porteur d'un filet 102 et le tambour 3, et d'autre part entre une platine 10 et le couvercle 7 du barillet 1. Ce couvercle 7 est porteur d'un filet 207 sur la figure 5, qui montre une platine 10 et un pont 11 chacun porteur d'un filet, respectivement 107 et 102, coopérant respectivement avec le couvercle 7 et le tambour 3.The Figures 4 to 6 illustrate supports in the form of nets, respectively between a bridge 11 and the ratchet 12 on the figure 4 , and between on the one hand a bridge 11 carrying a net 102 and the drum 3, and on the other hand between a plate 10 and the cover 7 of the cylinder 1. This cover 7 carries a net 207 on the figure 5 , which shows a plate 10 and a bridge 11 each carrying a thread, respectively 107 and 102, cooperating respectively with the lid 7 and the drum 3.

L'appui sous forme de filets est réalisé entre le tambour 3 et un pont 11, avec un filet 202 sur le tambour 3 sur la figure 6.The support in the form of threads is formed between the drum 3 and a bridge 11, with a thread 202 on the drum 3 on the figure 6 .

La figure 8 illustre une bonde 4 étagée en deux parties 4A et 4B, cette dernière 4B comportant une portée 43 de guidage d'un alésage 35 du tambour 3. La partie principale 4A est guidée dans une pierre chassée dans la platine 10 au niveau d'une portée 182 à son extrémité inférieure 87, le guidage du couvercle 7 se faisant sur une portée 44 de la bride 4A qui coopère avec un alésage 75 du couvercle 7. La partie 4B est guidée par une portée 181 dans une pierre chassée dans le pont 11 vers son extrémité supérieure 86. Cette figure illustre un accrochage traditionnel du ressort 2 sur un crochet 41.The figure 8 illustrates a bung 4 step in two parts 4A and 4B, the latter 4B having a bearing surface 43 for guiding a bore 35 of the drum 3. The main part 4A is guided in a stone driven into the plate 10 at a range 182 at its lower end 87, guiding the cover 7 is on a bearing surface 44 of the flange 4A which cooperates with a bore 75 of 7. Part 4B is guided by a bearing 181 in a stone driven into the bridge 11 towards its upper end 86. This figure illustrates a traditional attachment of the spring 2 on a hook 41.

La figure 10 illustre une configuration inversée par rapport à celle de la figure 5, et c'est le tambour 3 de la figure 10 qui est porteur d'un filet 202, destiné à coopérer en appui avec une pierre 302 chassée dans un pont 11, pierre 302 dont l'alésage guide une portée 43 de la bonde. Dans cette variante particulière, cette même portée cylindrique 43 s'étend pour assurer le guidage en pivotement du tambour 3.The figure 10 illustrates an inverted configuration compared to that of the figure 5 , and this is the drum 3 of the figure 10 which carries a net 202, intended to cooperate in support with a stone 302 driven into a bridge 11, 302 stone whose bore guides a scope 43 of the bung. In this particular variant, this same cylindrical bearing surface 43 extends to ensure the pivoting guidance of the drum 3.

Le fait de faire porter le filet sur la pierre permet de maîtriser le couple de frottement entre le filet et la pierre, et de le maintenir à une valeur très basse.Putting the net on the stone makes it possible to control the friction torque between the net and the stone, and to keep it at a very low value.

Sur cette figure 10 l'ébat entre la bonde et l'ensemble barillet monté est donné par la limitation des appuis du tambour 3 et du couvercle 7 sur les portées 43A et 43B de la bonde 4.On this figure 10 the play between the bung and the mounted barrel assembly is given by the limitation of the support of the drum 3 and the cover 7 on the bearing surfaces 43A and 43B of the bung 4.

L'ébat de l'ensemble barillet par rapport à l'ébauche est défini par le jeu axial de la bonde 4, qui est limité par le filet 202 du tambour 3 face à la pierre 302.The fretting of the barrel assembly relative to the blank is defined by the axial play of the plug 4, which is limited by the thread 202 of the drum 3 facing the stone 302.

Cette variante de la figure 10 est illustrée ici avec le pont 11 intercalé entre le tambour 3 et le rochet 12.This variant of the figure 10 is illustrated here with the bridge 11 interposed between the drum 3 and the ratchet 12.

La figure 11 montre également un filet 202 du tambour 3 agencé pour coopérer avec une pierre 302 chassée dans un pont 11.The figure 11 also shows a thread 202 of the drum 3 arranged to cooperate with a stone 302 driven into a bridge 11.

La bonde 4 porte, chassée sur une des ses portées 44, une rondelle 70. La rondelle 70 est chassée sur hauteur afin d'assurer un espace axial.The bung 4 door, driven on one of its bearing surfaces 44, a washer 70. The washer 70 is driven on height to ensure an axial space.

L'ébat de la bonde vis-à-vis de l'ensemble barillet est limité par le débattement de cette rondelle 70 par rapport à une face d'appui inférieure 73 du couvercle 7.The prancing of the plug with respect to the barrel assembly is limited by the movement of this washer 70 with respect to a lower bearing face 73 of the lid 7.

L'ébat du barillet vis-à-vis de l'ébauche est limité par la bonde 4 par rapport à la pierre 702 de la platine 10 d'une part, et par le filet 202 du tambour 3 par rapport au pont 11 d'autre part.The frog of the barrel vis-à-vis the blank is limited by the plug 4 with respect to the stone 702 of the plate 10 on the one hand, and the thread 202 of the drum 3 relative to the bridge 11 of somewhere else.

La figure 12 montre également un filet 202 du tambour 3 agencé pour coopérer avec une pierre 302 chassée dans un pont 11, ainsi qu'un filet 207 du couvercle 7 agencé pour coopérer avec une pierre 702 chassée dans la platine 10.The figure 12 also shows a thread 202 of the drum 3 arranged to cooperate with a stone 302 driven into a bridge 11, and a thread 207 of the cover 7 arranged to cooperate with a stone 702 driven into the plate 10.

Sur cette figure 12, l'ébat axial du barillet seul est assuré par le ressort 2 qui comporte une zone saillante 23, ici représentée sous forme d'une première spire élargie, coopérant directement, selon la position de la bonde 4, avec une surface interne 31 du tambour 3, ou avec une surface interne 71 du couvercle 7.L'ébat de barillet dans les ponts est quant à lui assuré par les filets 202 ou 207de chaque côté, à l'extérieur du tambour et du couvercle.On this figure 12 , axial play of the barrel alone is provided by the spring 2 which has a projecting zone 23, here represented in the form of a first enlarged turn, cooperating directly, according to the position of the plug 4, with an inner surface 31 of the drum 3, or with an inner surface 71 of the lid 7.Beadling in the bridges is ensured by the threads 202 or 207 on each side, outside the drum and lid.

La figure 13 montre un filet 207 du couvercle 7 agencé pour coopérer avec une pierre 702 chassée dans la platine 10.The figure 13 shows a thread 207 of the cover 7 arranged to cooperate with a stone 702 driven into the plate 10.

La bonde est en deux parties : la bonde 4 proprement dite porteuse du ressort 2, emmanchée sur un arbre de barillet 18, avec une limitation axiale par une face d'appui 18A de l'arbre de barillet 18 et une face d'appui antagoniste 49 de la bonde 4.The bung is in two parts: the bung 4 proper carrier of the spring 2, fitted on a barrel shaft 18, with axial limitation by a bearing face 18A of the barrel shaft 18 and an antagonistic bearing face 49 of the bung 4.

La bonde 4, porteuse de l'extrémité interne 22 du ressort 2, comporte un alésage de bonde 411 coopérant avec une portée 84 d'un arbre de barillet 18.The bung 4, carrier of the inner end 22 of the spring 2, has a bore bore 411 cooperating with a bearing surface 84 of a barrel shaft 18.

La reprise de l'ébat du barillet seul est assurée par le ressort 2, qui comporte une zone saillante 23, ici une bride rapportée ou une spire suffisamment éloignée de l'axe de façon à porter sur la surface interne 31 du tambour 3 plutôt que sur un épaulement inférieur 189A de l'arbre de barillet.The recovery of the frog of the barrel alone is provided by the spring 2, which has a projecting zone 23, here an attached flange or a turn sufficiently far from the axis so as to bear on the inner surface 31 of the drum 3 rather than on a lower shoulder 189A of the barrel shaft.

Tandis que l'ébat du barillet complet avec l'ébauche est assuré, d'un coté par un épaulement supérieur 189B de l'arbre de barillet 18 agencé pour venir en appui de contact avec la pierre 302 du pont 11, et de l'autre côté par le contact du filet 207 du couvercle 7sur la pierre 702 de la platine 10.While the frog of the barrel complete with the blank is provided, on one side by an upper shoulder 189B of the barrel shaft 18 arranged to bear in contact with the stone 302 of the bridge 11, and the other side by the contact of the thread 207 of the cover 7on the stone 702 of the plate 10.

La figure 14 montre encore un filet 202 du tambour 3 agencé pour coopérer avec une pierre 302 chassée dans un pont 11, ainsi qu'un filet 207 du couvercle 7 agencé pour coopérer avec une pierre 702 chassée dans la platine 10.The figure 14 still shows a thread 202 of the drum 3 arranged to cooperate with a stone 302 driven into a bridge 11, and a thread 207 of the cover 7 arranged to cooperate with a stone 702 driven into the plate 10.

La reprise du barillet complet dans les ébauches se fait de manière identique à la figure 12 tandis que la reprise de l'ébat du barillet seul vis-à-vis de l'ébauche se fait par contact d'une portée de la bonde 4, respectivement 407 avec le couvercle 7 ou 403 avec le tambour 3.The recovery of the complete barrel in the blanks is identical to the figure 12 while the recovery of the frog of the barrel alone vis-à-vis the rough is made by contact of a scope of the plug 4, respectively 407 with the lid 7 or 403 with the drum 3.

Cette figure 14 montre un rochet 12 comportant un taraudage vissé sur un filetage que comporte la bonde 4.This figure 14 shows a ratchet 12 having a tapped thread on a thread that includes the bung 4.

La figure 15 illustre une variante avantageuse avec une bonde 4 comportant une collerette inférieure 40, qui est agencée pour venir en appui par une face d'appui 401 sur une face interne 31 du tambour 3.The figure 15 illustrates an advantageous variant with a bung 4 having a lower flange 40, which is arranged to abut by a bearing face 401 on an inner face 31 of the drum 3.

L'ébat de la bonde par rapport à l'ensemble barillet est limité par le débattement du tambour 3 et du couvercle 7 par rapport aux faces d'appui 40A et 407 de la bonde 4.The fretting of the bung with respect to the barrel assembly is limited by the displacement of the drum 3 and the cover 7 with respect to the bearing faces 40A and 407 of the bung 4.

L'ébat de l'ensemble barillet par rapport à l'ébauche est encadré par les contacts entre les faces d'appui opposées 49A et 49B de la bonde 4, avec les pierres 702 de la platine 10 et 302 du pont 11 respectivement.The fretting of the barrel assembly relative to the blank is framed by the contacts between the opposite bearing faces 49A and 49B of the plug 4, with the stones 702 of the plate 10 and 302 of the bridge 11 respectively.

La bonde 4 est avantageusement réalisée en plusieurs parties coaxiales pour simplifier son usinage.The bung 4 is advantageously made of several coaxial parts to simplify its machining.

La figure 16 illustre une variante de la version de la figure 14. Dans cette version, les ébats sont repris de la même manière. Mais les guidages sont différents avec car les pivotements du tambour 3 et du couvercle 7 se font directement dans l'ébauche, respectivement au niveau du pont 11 et de la platine 10. Cette disposition apporte une meilleure maîtrise de battement axial, du fait de l'agrandissement du diamètre de pivotement.The figure 16 illustrates a variant of the version of the figure 14 . In this version, the antics are repeated in the same way. But the guides are different with the pivoting of the drum 3 and the cover 7 are directly in the blank, respectively at the bridge 11 and the plate 10. This provision provides better control axial beat, because of the enlargement of the pivot diameter.

L'invention concerne encore une pièce d'horlogerie 1000 comportant au moins un tel mouvement d'horlogerie 100 ou/et au moins un tel ensemble barillet 1 pour le stockage d'énergie avec une entrée constituée, ou bien par un rochet 12 monté solidaire en pivotement de la bonde 4, ou bien par une denture de tambour 13 montée solidaire en pivotement du tambour 3, et une sortie constituée respectivement, ou bien par une denture de tambour 13 montée solidaire en pivotement du tambour 3, ou bien par un rochet 12 monté solidaire en pivotement de la bonde 4.The invention also relates to a timepiece 1000 comprising at least one watch movement 100 and / or at least one such barrel assembly 1 for energy storage with an incorporated input, or a ratchet 12 mounted solidarity pivoting the bung 4, or by a toothing drum 13 mounted pivotally integral with the drum 3, and an output constituted respectively, or by a toothing drum 13 mounted to pivotally attached to the drum 3, or by a ratchet 12 mounted pivotally integral with the bung 4.

L'invention fournit les moyens de réaliser une bonde de très faible diamètre, et ainsi d'augmenter la capacité de stockage et la réserve de marche d'un mécanisme de mouvement ou de sonnerie, ou similaire.The invention provides the means for making a bung of very small diameter, and thus increase the storage capacity and the power reserve of a movement mechanism or ringing, or the like.

La maîtrise des ébats est importante car elle permet de limiter l'usure des composants, et d'augmenter la fiabilité des mécanismes.The control of lovemaking is important because it allows to limit the wear of the components, and to increase the reliability of the mechanisms.

Claims (20)

  1. Timepiece movement (100) including at least one plate (10) at a fixed distance of centres from a bridge (11) jointly carrying a timepiece barrel assembly (1) including at least one barrel spring (2) mounted between, at a first end (21), a barrel drum (3) arranged beside said bridge (11), and at a second end (22), a receiving surface (5) comprised in a barrel core (4) rotating integrally with a ratchet (12) and coaxial to said drum (3) about a common pivot axis (D), said barrel assembly (1) including on said plate (10) side a cover (7) fixed to said drum (3), said cover (7) and said drum (3) together forming a chamber (32) confining said spring (2), said spring (2) being 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 of between 200 and 240 GPa and a shear modulus of between 80 and 100 GPa, and having a width to thickness ratio of between 9 and 21, and the maximum thickness of said steel or stainless steel core (4) relative to said pivot axis (D) being less than nine times the maximum thickness of said spring (2), and further said movement (100) including a shake limiting means including at least one shim-washer (70), which is independent of said core (4) and guided by a shoulder (44) of said core (4) and inserted between, on the one hand, said plate (10) or said bridge (11) respectively, and on the other hand said cover (7) or said drum (3) respectively.
  2. Movement (100) according to claim 1, characterized in that said at least one shim-washer (70) is driven onto said shoulder (44).
  3. Movement (100) according to claim 1 or 2, characterized in that said shake limiting means includes a first shim-washer (70) inserted between said bridge (11) and said drum (3) and a second said shim-washer (70) inserted between said plate (10) and said cover (7).
  4. Timepiece movement (100) according to any of the preceding claims, characterized in that said shim-washer (70) is independent, on the one hand of a barrel arbour (18) carrying said core (4) or merged therewith, and on the other hand of said cover (7), and is inserted between said plate (10) and said cover (7).
  5. Timepiece movement (100) according to any of claims 1 to 4, characterized in that said core (4) is pivoted directly in said plate (10) and said bridge (11).
  6. Timepiece movement (100) according to any of claims 1 to 4, characterized in that said core (4) is pivoted indirectly in said plate (10) and said bridge (11), via said cover (7) and said drum (3) respectively.
  7. Timepiece movement (100) according to any of the preceding claims, characterized in that said core (4) includes two coaxial parts (4A; 4B); one part (4B) is pivoted directly in said bridge (11) and includes a guide shoulder (43) for a bore (35) of said drum (3), and the other part (4A) is pivoted directly in said plate (10) and carries a hook (41) for hooking said spring (2).
  8. Timepiece movement (100) according to any of the preceding claims, characterized in that said drum (3) pivots in said bridge (11) or in a guide member (403) carried by said bridge (11), and includes an axial support shoulder (39) arranged to cooperate to limit the end of travel of said drum (3) with a complementary stop surface (119) of said bridge (11) or of said guide member (403), and said cover (7) pivots in said plate (10) or in a guide member (108) carried by said plate, and includes an axial support shoulder (79) arranged to cooperate to limit the end of travel of said cover (7) with a complementary stop surface (109) of said plate (10) or of said guide member (108); and in that said core (4) includes a first shoulder (43) pivoting in a bore (35) in said drum (3), and a second shoulder (44) pivoting in a bore (75) in said cover (7), and in that the relative endshake between said core (4) and said drum (3) is limited by a first stop surface (403) of said core (4) and a first complementary internal stop surface (31) of said drum (3), and the relative endshake between said core (4) and said cover (7) is limited by a second stop surface (407) of said core (4) and a second complementary internal surface (71) of said cover (71).
  9. Timepiece movement (100) according to claim 8, characterized in that said axial support shoulder (39) of said drum (3) and/or said axial support shoulder (79) of said cover (7) is formed by a fillet (202; 207) to reduce the contact surface.
  10. Movement (100) according to claim 9, characterized in that said fillet (202; 207) is supported on a guide member (403; 108) carried by said bridge (11) or said plate (10).
  11. Timepiece movement (100) according to any of the preceding claims, characterized in that said barrel assembly (1) includes a means of limiting the endshake (6) between said barrel assembly (1) and at least said plate (10) or said bridge (11).
  12. Timepiece movement (100) according to claim 11, characterized in that said limiting means includes a means of guiding the pivoting of said drum (3) and of cover (7) directly in said plate (10) and/or in said bridge (11).
  13. Timepiece movement (100) according to claim 11, characterized in that said limiting means includes a shim means or a means of limiting the travel of said drum (3) and/or said cover (7) relative to said plate (10) and/or said bridge (11).
  14. Timepiece movement (100) according to claim 11, characterized in that said limiting means includes at least one lip (202) protruding from an external surface (30) of said drum (3) opposite said plate (10) or said bridge (11) and/or at least one lip (102) protruding from an external surface of said plate (10) or of said bridge (11) and facing an external surface (30) of said drum (3).
  15. Timepiece movement (100) according to claim 11, characterized in that said limiting means includes at least one lip (207) protruding from an external surface (76) of said cover (7) opposite said plate (10) or said bridge (11) and/or at least one lip (107) protruding from an external surface of said plate (10) or of said bridge (11) and facing an external surface (76) of said cover (7).
  16. Timepiece movement (100) according to claims 14 and 15, characterized in that said limiting means is supplemented by at least one lip (201) protruding from an external surface (121) of said ratchet (12) carried by said core (4) opposite said plate (10) or said bridge (11) and/or by at least one lip (101) protruding from an external surface of said plate (10) or of said bridge (11) and facing an external surface (121 of said ratchet (12).
  17. Timepiece movement (100) according to any of the preceding claims, characterized in that said receiving surface (5) is a surface of revolution relative to said pivot axis (D).
  18. Timepiece movement (100) according to any of the preceding claims, characterized in that said spring (2) is fixed by friction to said core (4).
  19. Timepiece movement (100) according to any of the preceding claims, characterized in that said spring (2) forms, with said core (4), a welded or soldered single-piece spring-core sub-assembly.
  20. Timepiece (1000) including at least one timepiece movement (100) according to any of the preceding claims for storing energy with one input formed either by a ratchet (12) mounted for integral rotation with said core (4), or by a drum toothing (13) mounted for integral rotation with said drum (3), and an output respectively formed either by a drum toothing (13) mounted for integral rotation with said drum (3), or by a ratchet (12) mounted for integral rotation with said core (4).
EP12758483.7A 2011-09-15 2012-09-13 Clock barrel assembly with reduced core diameter Active EP2756359B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12758483.7A EP2756359B1 (en) 2011-09-15 2012-09-13 Clock barrel assembly with reduced core diameter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11181351A EP2570861A1 (en) 2011-09-15 2011-09-15 Clock barrel assembly with reduced core diameter
PCT/EP2012/067910 WO2013037868A1 (en) 2011-09-15 2012-09-13 Clock movement comprising a barrel having a small core diameter
EP12758483.7A EP2756359B1 (en) 2011-09-15 2012-09-13 Clock barrel assembly with reduced core diameter

Publications (2)

Publication Number Publication Date
EP2756359A1 EP2756359A1 (en) 2014-07-23
EP2756359B1 true EP2756359B1 (en) 2016-03-23

Family

ID=46832410

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EP11181351A Withdrawn EP2570861A1 (en) 2011-09-15 2011-09-15 Clock barrel assembly with reduced core diameter
EP12758483.7A Active EP2756359B1 (en) 2011-09-15 2012-09-13 Clock barrel assembly with reduced core diameter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11181351A Withdrawn EP2570861A1 (en) 2011-09-15 2011-09-15 Clock barrel assembly with reduced core diameter

Country Status (8)

Country Link
US (1) US9195216B2 (en)
EP (2) EP2570861A1 (en)
JP (1) JP5755375B2 (en)
CN (1) CN103797424B (en)
HK (1) HK1197841A1 (en)
IN (1) IN2014CN02735A (en)
RU (1) RU2562398C1 (en)
WO (1) WO2013037868A1 (en)

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EP2570862B1 (en) * 2011-09-15 2014-03-05 ETA SA Manufacture Horlogère Suisse Clock barrel assembly with reduced core diameter
EP2963504A1 (en) 2014-06-30 2016-01-06 Rolex Sa Barrel for timepiece
EP3067756B1 (en) * 2015-03-09 2017-11-22 Nivarox-FAR S.A. Swivel assembly for a timepiece
CN107877488A (en) * 2016-09-30 2018-04-06 深圳市越疆科技有限公司 Eliminate the robot rotating base of backhaul deviation
EP3525046B1 (en) * 2018-02-12 2024-07-10 The Swatch Group Research and Development Ltd Clock oscillator not sensitive to the angular accelerations of the wearing

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Also Published As

Publication number Publication date
IN2014CN02735A (en) 2015-07-03
HK1197841A1 (en) 2015-02-18
EP2756359A1 (en) 2014-07-23
CN103797424A (en) 2014-05-14
JP5755375B2 (en) 2015-07-29
JP2014526690A (en) 2014-10-06
RU2562398C1 (en) 2015-09-10
CN103797424B (en) 2016-08-17
EP2570861A1 (en) 2013-03-20
WO2013037868A1 (en) 2013-03-21
US20140376338A1 (en) 2014-12-25
US9195216B2 (en) 2015-11-24

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