EP3032354B1 - System for attaching a hairspring - Google Patents
System for attaching a hairspring Download PDFInfo
- Publication number
- EP3032354B1 EP3032354B1 EP15196169.5A EP15196169A EP3032354B1 EP 3032354 B1 EP3032354 B1 EP 3032354B1 EP 15196169 A EP15196169 A EP 15196169A EP 3032354 B1 EP3032354 B1 EP 3032354B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blank
- relative
- movement
- balance spring
- outer end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 description 11
- 230000003100 immobilizing effect Effects 0.000 description 9
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/063—Balance construction
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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
- G04B18/00—Mechanisms for setting frequency
- G04B18/04—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat
- G04B18/06—Adjusting the beat of the pendulum, balance, or the like, e.g. putting into beat by setting the collet or the stud of a hairspring
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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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/066—Manufacture of the spiral spring
-
- 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
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
- G04B17/325—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring in a fixed position, e.g. using a block
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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
- G04B18/00—Mechanisms for setting frequency
- G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
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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
- G04B18/00—Mechanisms for setting frequency
- G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
- G04B18/023—Regulator or adjustment devices; Indexing devices, e.g. raquettes with means for fine adjustment of the indexing device
-
- 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
- G04B18/00—Mechanisms for setting frequency
- G04B18/02—Regulator or adjustment devices; Indexing devices, e.g. raquettes
- G04B18/026—Locking the hair spring in the indexing device, e.g. goupille of the raquette
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- G—PHYSICS
- G04—HOROLOGY
- G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
- G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
- G04D7/10—Measuring, counting, calibrating, testing or regulating apparatus for hairsprings of balances
Definitions
- the invention relates to a hairspring system for a watch movement. It also relates to a watch movement including such a system. It also relates to a timepiece, in particular a wristwatch, comprising such a system or such a movement. Finally, it relates to a setting process.
- the traditional assembly of a balance-spring oscillator within a watch movement is carried out by means of a set of parts predisposed on the balance bridge which are provided to allow its movement in rotation, and thus allow a easy setting of the escapement so that at neutral, or equilibrium position, the center of the balance plate pin is on the line connecting the pivot points of the anchor, or of the blocker, and of the balance.
- the outer end of the hairspring is usually fixed to the balance bridge by means of a fixing support, for example a stud holder, which is movable in rotation relative to the frame of the watch movement. The removal of this angular positioning member from the balance bridge induces the loss of the setting of the mark.
- the patent application EP1798609A2 discloses a conventional eyebolt holder on which is fixed the outer end of a hairspring.
- This eyebolt is assembled on a balance bridge. More particularly, it is pivoted in friction on the balance bridge by means of elastic means which are provided to cooperate with a guide portion of the balance bridge.
- Related elements such as a micrometric screw and a return spring allow fine adjustment of the rotation of the eyebolt relative to the balance bridge.
- the setting operation is thus carried out in a conventional manner by fine rotation of the hairspring fixing support relative to the frame of the clockwork movement.
- the disassembly of the eye bolt from the balance bridge also results in the loss of the setting of the mark.
- the patent application EP2437126A1 describes a hairspring, the outer end of which has been manufactured with a connecting member designed to be fixed to an angular positioning member of a balance bridge. More particularly, this positioning member is guided in rotation on the balance bridge by means of a bore provided to cooperate with a cylindrical portion of the bridge. The removal of this member from the balance bridge here induces the loss of the setting of the mark.
- the spiral spring is movable relative to the balance bridge independently of an angular positioning member. The adjustment of the mark can here be carried out by directly modifying the angular position of the hairspring, in particular by means of the connecting member of the hairspring. Removing the oscillator from the balance bridge here induces the loss of the setting of the mark.
- Requirement EP2799937A1 describes an angular positioning member of a spiral spring which is integral with a damper body.
- the setting operation is carried out by the angular displacement of the shock absorber body, in particular by means of a specific drive zone of the shock absorber body, which may for example be in the form of 'a set of teeth or flats. Removing the oscillator from the balance bridge leads to the loss of the setting of the mark.
- the patent application EP2570868A1 describes an oscillator shaped and arranged so as to eliminate any setting operation.
- a hairspring, a large chainring, a chainring pin, as well as a small chainring are manufactured in one piece so that the angular indexing of these elements does not a priori require subsequent adjustment of the oscillator once. this one mounted within the movement.
- the end The exterior of the hairspring can therefore be secured to a fixed part of the movement, for example the plate, the anchor bridge, or the balance bridge.
- the eyebolt of the outer end of the spiral spring may in particular be provided to fit into a bore in the plate, and be maintained axially by a plate attached to the plate. This document does not disclose any means of adjusting the angular position of the hairspring, in particular of the eyebolt, relative to the frame of the movement.
- the document EP2565730A1 relates to an escapement-holder module designed to pivot the components of the regulating organ, which is shaped to relate directly to the movement plate. This is distinguished by the fact that all the components of the regulating member are arranged in such a way that they can be assembled automatically from one side of the module.
- This device is devoid of snowshoes and of any device enabling the position of the outer end of the spiral spring to be mechanically adjusted; the end of this spring is probably glued or welded to a receiving surface of the lower bridge of the module. No relevant element relating to the setting of the oscillator emerges from this request.
- the document CH705605A2 describes a device for adjusting the active length of a hairspring.
- the device comprises a racket on which is formed a groove intended to receive a slide which can be moved in the groove by rotating a toothed wheel.
- One end of the hairspring is linked to the slider and the active length of the hairspring can be adjusted by moving the slider. Note that if you want to remove the sprung balance, it is necessary to remove the slide. Its position before disassembly is not memorized by any element and the adjustment of the active length of the hairspring is inevitably lost.
- the document US273138 describes a device for adjusting the position of the outer end of a hairspring.
- the device comprises a slide secured to the end of the hairspring and movable on a bridge. Note that if you want to remove the sprung balance, it is necessary to remove the slide. Its position before disassembly is not memorized by any element and the position adjustment of the outer end of the hairspring is inevitably lost.
- the document US1181510 describes a device for adjusting the position of the outer end of a hairspring.
- the device comprises a toothed racket system cooperating with an adjusting wheel pivoted on a bridge and a toothed stud holder cooperating with an adjusting wheel pivoted on the bridge. Note that if one wishes to remove the sprung balance, it is necessary to act on the racket and on the eyebolt holder. The positions before disassembly are not memorized by any element and the position adjustment of the outer end of the hairspring is inevitably lost.
- the document FR1293095 describes a hairspring device attached to a piton.
- the device conventionally comprises an active length adjustment of the hairspring with a racket. Note that if one wishes to remove the sprung balance, it is necessary to act on the racket. The position before disassembly is not memorized by any element and the position adjustment of the outer end of the hairspring is inevitably lost.
- the document EP2781970A1 describes a device for adjusting the position of the outer end of a hairspring.
- the device comprises a toothing system integral with a frame cooperating with a tooth provided on a component for adjusting the position of a hairspring eyelet. Note that if you want to remove the sprung balance, it is necessary to remove the eyebolt. The position before disassembly is not memorized by any element and the position adjustment of the outer end of the hairspring is inevitably lost.
- the document CH700408A2 describes a device for adjusting the position of the outer end of a hairspring.
- the device comprises a system for fixing and positioning a stud on a stud holder. Note that if you want to remove the sprung balance, it is necessary to remove the eyebolt. The position before disassembly is not memorized by any element and the position adjustment of the outer end of the hairspring is inevitably lost.
- the aim of the invention is to provide a hairspring system for a watch movement which makes it possible to remedy the aforementioned drawbacks and to improve the systems known in the art. prior.
- the invention proposes a system making it possible to simplify the operations of mounting and winding the oscillator of a mechanical watch movement.
- a system according to the invention is defined by claim 1.
- a movement according to the invention is defined by claim 12.
- a timepiece according to the invention is defined by claim 14.
- a first embodiment of a timepiece 120, in particular of a wristwatch, is described below with reference to figures 1 to 6 .
- the timepiece includes a watch movement 110.
- This watch movement includes a spiral spring system 100.
- the first indexing element 1c comprises a pin mounted on the connecting member.
- the first indexing element may comprise or be a screw base 1c mounted on the linking member OL.
- the first indexing element is intended to cooperate with a second indexing element 3c provided on the blank.
- the second indexing element is a bore 3c made on the blank.
- indexing element we mean any element capable of memorizing a position, in particular an angular position, of a spiral spring with respect to a blank.
- the balance spring 1 of the oscillator is linked to a balance, in particular in the usual way by means of a ferrule.
- the OL linker includes a first linker part or body OL1 and a second linker part or second body OL2.
- the second part of the connection member OL2 has been manufactured with the outer end 10 of the hairspring or is integral with the hairspring.
- the first part of the connecting member OL1 is for example fixed or attached to the second part of the connecting member OL2, in particular by means of pins or rivets 9.
- the first and second parts comprise for example holes intended to receive the pins or the rivets.
- the second part of the OL2 member is specifically designed to form an interface between the body of the hairspring made of a first material, for example silicon, and the first part of the OL1 connecting member, made of a second material, by example of NiP.
- the link member OL can be fully manufactured with the outer end 10 of the spiral spring 1 or be integral with the spiral spring.
- the connecting member is located at the level of the median plane P of the spiral spring.
- the connecting member may be located between a first plane P1 and a second plane P2, the first plane and second plane being symmetrical with respect to the plane P and distant by a distance d.
- d is less than 1.2 mm, or even less than 1 mm, or even less than 0.8 mm.
- the interface between the first part of the link member OL1 and the second part of the member OL2 is located at the level of the median plane P of the spiral spring.
- the interface between the first part of the link member OL1 and the second part of the member OL2 can be located between the first plane P1 and the second plane P2.
- the mechanical connection between the first part of the link member OL1 and the second part of the member OL2 is non-removable, that is to say non-removable without damaging the mechanical connection and / or the first part of the connecting member and / or the second part of the connecting member.
- the first part of the link member OL1 comprises elements for guiding the spiral spring in rotation, in particular the outer end of the spiral spring.
- the guide elements comprise oblong openings 1a, 2a, for example two grooves in the form of concentric circular arcs.
- the oblong grooves can be made on different radii.
- the center of rotation, or the center of the arcs of circles coincides substantially with the center of the spiral spring.
- the openings 1a, 2a are for example provided to cooperate with other guide elements, such as positioning pins 3a attached to the blank 3, in particular on the plate 3.
- the guide elements also constitute elements of centering of the spiral spring.
- the openings 1a, 2a are at least two in number in order to ensure a radial positioning of the spiral spring which is as precise as allowed by the manufacturing and assembly tolerances.
- these guide elements make it possible to retain the initial shape, without constraint or minimal constraints, of the spiral spring in the rest position of the regulator member.
- the system can comprise a second immobilizing element 1b, in particular an immobilizing surface 1b, of the first part of the connecting member relative to the blank 3 or of the outer end 10 of the spiral spring relative to the blank 3, in particular a second immobilizing element 1b, in particular an immobilizing surface 1b, intended to cooperate with at least a third immobilizing element 3b, in particular an immobilizing surface 3b, of the blank 3.
- a second immobilizing element 1b in particular an immobilizing surface 1b
- an immobilizing surface 1b intended to cooperate with at least a third immobilizing element 3b, in particular an immobilizing surface 3b, of the blank 3.
- At least one tenon 3a is a screw foot.
- the latter preferably cooperates with the third immobilization element.
- the foot-screw constitutes a means allowing the fixing or the immobilization of the spiral spring on the frame of the movement.
- the screw foot 3a can also be provided to participate in the positioning and fixing of a balance bridge 4 on the plate 3 as shown in the figure. figure 4 .
- the fixing by screwing of this bridge 4 on the plate 3 induces the securing of the outer end of the spiral spring to the frame of the movement.
- the first part of the connection member OL1 can preferably be made of a material that is more ductile than that of the body of the hairspring to allow the first part of the connection member OL1 to be adequately held against the screwing forces.
- the system comprises a first guide element 2a of the first indexing element 1c relative to the first part OL1 of the connecting member.
- the first guide element comprises a oblong opening 2a intended to cooperate with a second guide element 10c, such as a flat or two flats made on the screw foot 1c.
- the first indexing element is advantageously provided with a geometry substantially complementary to that of the oblong cutout 2a, for example a geometry including for example one or two flats 10c. These flats can be flat.
- One or more flats 10c may alternatively not be completely flat, but have a convexity or a concavity complementary to that of the opening edge with which the flat must cooperate.
- the first guide element 2a of the first indexing element 1c relative to the first part OL1 of the connecting member is an element for guiding the spiral spring in rotation, in particular the end. outside of the spiral spring.
- the system can include a first immobilization element V1 of the linking member OL with respect to the first indexing element 1c.
- the first indexing element can be made integral or fixed to the first part of the connecting member OL1 by means of the first immobilizing element V1.
- the first immobilization element can be a V1 screw.
- the first part of the connecting member can be clamped between the head of the screw V1 and one or more shoulders 10d made at the lower ends of the flat or flats, as shown in Figure figure 5 .
- the screw base 1c secured to or fixed to the hairspring, in particular fixed to the first part of the connecting member OL1, is provided to fit into the bore 3c of the plate 3.
- the cooperation of these elements guarantees an angular positioning of the spiral spring as precise as allowed by the manufacturing and assembly tolerances.
- the system advantageously comprises a first adjustment element 1d of the position of the outer end 10 of the spiral spring relative to the blank.
- This first adjustment element is provided to cooperate with a second adjustment element 3d to ensure the adjustment.
- the first adjustment element may be a toothed sector 1d and the second adjustment element may be a toothed nut 3d, mounted so as to be able to rotate on the blank, in particular on the plate 3.
- the toothed sector 1d can be produced on the first part of the connection member OL1.
- the sector can be provided on an arc concentric with the hairspring and the balance.
- the toothed nut can mesh with the toothed sector so that a rotation of the nut causes a rotation of the toothed sector and, in fact, a rotation of the hairspring.
- the latter preferably has a drive conformation using a tool, for example a slot 3e allowing the nut to be driven using a screwdriver.
- the adjustment nut 3d is mounted in friction on the blank 3, or cooperates with a friction spring 6, so that a resistive torque opposes its rotation and, consequently, opposes its rotation.
- the friction spring may comprise a leaf spring which is arranged to cooperate, directly or indirectly, with the toothed nut so as to create a friction torque opposing the rotation of the toothed nut.
- This leaf spring can be fixed on the blank and press on one side of the nut.
- the leaf spring can be prestressed to permanently apply a mechanical action to the nut.
- the system preferably comprises a first stop element, in particular a groove 1a or a pin intended to cooperate with a second stop element 3a provided on the plate, in particular a pin or a groove.
- a first stop element in particular a groove 1a or a pin intended to cooperate with a second stop element 3a provided on the plate, in particular a pin or a groove.
- the angular range of rotation of the spiral spring is defined by stops.
- first stops can be formed by the ends 1e of the oblong cutouts 1a, which are provided to cooperate with second stops, for example one or more tenons 3a.
- a single cutout 1a forms the first stops 1e.
- This angular range of rotation can for example be between 20 ° and 40 °.
- a second embodiment of a timepiece 220, in particular of a wristwatch, is described below with reference to figures 7 to 9 .
- the timepiece comprises a watch movement 210.
- This watch movement comprises a hairspring system 200.
- the second embodiment differs from the first embodiment in that functions are distributed between the first and second parts of the link member OL1, OL2. Indeed, in the first embodiment, the functions (guidance, immobilization, indexing, adjustment, stop, mark) are concentrated on the first part of the connecting member.
- the guide elements 1a can for example be formed on the second part of the link member OL2 which has been manufactured with the body of the hairspring.
- an oblong cutout 10a is specially dedicated to the implementation of the indexing elements 1c of the angular position of the hairspring.
- Their operation is identical to those described above, the screw foot 1c being designed to be housed within a bore 3c made in the plate 3.
- the figures 8 and 9 represent the hairspring assembled on the movement.
- This assembly differs from that of the first mode by the fact that the fixing of the hairspring is ensured by a V3 screw, mounted directly on the plate 3, which has no effect on the balance bridge 4.
- the bearing surfaces 1b of the first part of the link member OL1 are here immobilized against respective bearing surfaces 3b and V3b of the plate 3 and the head of the screw V3.
- the registration operation is made possible independently of the elements for fixing the balance bridge to the plate, by unscrewing the screw V3 and the screw V1 of the screw base 1c.
- adjustment or drive elements 1d can be carried by the first part of the link member OL1.
- These elements are in the form of a toothing 1d which is capable of being driven by the toothing of an adjusting nut 3d pivotably mounted on the plate 3.
- the friction torque provided to oppose the rotation of the spring -spiral is here provided by a spring 6 reported under the balance bridge and which is intended to act against a bearing surface 1b of the first part of the member of OL1 link.
- the fixing of the hairspring relative to the plate can be ensured by friction, in particular by friction due to the friction spring.
- the hairspring can be held on the blank only by a frictional force, induced by a support force.
- the fixing of the hairspring can be carried out independently of any fixing screw.
- the system may include a first mark 1f of the position of the outer end of the spiral spring relative to the blank, in particular a first toothing 1f or a first mark intended to cooperate respectively with a second mark 3f provided on the blank or a second toothing provided on the blank.
- Marker or receipt elements for the angular indexing of the spiral spring are here in the form of a micro-toothing 1f, formed on the first part of the connection member OL1, provided to cooperate with a visual marker 3f performed on the turntable.
- connection member OL1 and OL2 can be merged so that a single link member OL come from manufacture with the body of the hairspring carries the set of functions.
- the bearing surfaces 1b could for example be hardened by a localized coating so as to support the axial forces, in particular the screwing forces.
- the blank is preferably a plate.
- At least one connecting member comprises elements for moving the spiral spring in rotation with respect to its support. so that it is possible to adjust the angular position of the spiral spring relative to its support.
- These displacement elements are advantageously combined with elements for indexing the angular position of the hairspring relative to the frame.
- These displacement elements can also be combined with elements for fine adjustment of the angular position of the hairspring relative to the frame.
- such a design makes it possible to implement a system for setting the mark of an oscillator, the hairspring of which is fixed to the movement by one or more blanks which cannot be moved relative to the frame.
- the system allows a rotational movement of a hairspring vis-à-vis its fixing support so that the setting operation can be performed directly by the rotation of the hairspring, and not by the rotation of its mounting bracket.
- a such a solution may be particularly advantageous for an oscillator the hairspring of which is fixed to a support which cannot be moved vis-à-vis the frame of the clockwork movement, for example one or more blanks such as a plate and / or a balance bridge .
- the system according to the invention has the advantage of allowing an adjustment of the mark which has the particularity of being able to be kept after removing the oscillator from its support by virtue of the elements for indexing the angular position of the spiral spring.
- the system can make it possible to implement fine adjustment elements of the mark by means of adjustment elements carried by the hairspring system.
- Such a system is suitable for any type of watch exhaust.
- the outer end of the hairspring is fixed to the frame of the movement by the plate and the balance bridge or by the plate independently of the balance bridge.
- the movement comprises the blank, in particular the plate 3, and a balance 99.
- the spiral spring system is arranged between the balance and the plate.
- an element of the spiral spring system for example a first indexing element 1c, such as a screw foot, or a guide means such as a tenon 3a or an adjustment element, such as a nut 3d, may however be disposed in the blank or be partially disposed in the blank.
- the release of the first indexing element is for example implemented by acting on the first immobilizing element V1 of the linking member OL with respect to the first indexing element 1c. This action consists for example in unscrewing the screw V1. Therefore, the first indexing element can be moved relative to the connecting member and vice versa.
- the movement of the first indexing element can be carried out by direct action of the watchmaker on the indexing element or preferably by direct action of the watchmaker on the connecting member. Direct action is also understood to mean action by the watchmaker using a tool.
- the displacement of the first indexing element can be carried out by indirect action on the indexing element or preferably on the connecting member. In particular, this indirect action can be carried out via the first adjustment element 1d of the position of the outer end 10 of the spiral spring relative to the blank, in particular via the toothed nut 3d, mounted to be movable in rotation on the blank. 3.
- the watchmaker can move the first indexing element relative to the connecting member by acting with the aid of a tool on the toothed nut.
- the fixing of the first indexing element is for example implemented by acting on the first immobilizing element V1 of the linking member OL with respect to the first indexing element 1c.
- This action consists, for example, of screwing in screw V1. Therefore, the first index element can no longer be moved.
- the immobilization surface of the connecting member can be released relative to the immobilization surface of the blank.
- the release of the immobilization surface is for example implemented by acting on the screw V3 of the screw foot 3a. This action consists, for example, in unscrewing screw V3. Therefore, the member can be moved relative to the blank.
- the fixing of the immobilization surface of the connecting member is for example implemented by acting on the screw V3 of the screw foot 3a. This action consists, for example, of tighten the V3 screw. Therefore, the member is immobilized relative to the blank.
- hairspring and “hairspring” are used interchangeably to designate the same element.
- the present invention excludes the fixing of the outer end of the spiral spring with the aid of a eyebolt or with the aid of an elastic fixing mechanism dedicated to come to cooperate with a eyebolt to clamp the spring. spiral.
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Description
L'invention concerne un système de ressort-spiral pour mouvement horloger. Elle concerne encore un mouvement horloger incluant un tel système. Elle concerne aussi une pièce d'horlogerie, notamment une montre bracelet, comprenant un tel système ou un tel mouvement. Elle concerne enfin un procédé de mise au repère.The invention relates to a hairspring system for a watch movement. It also relates to a watch movement including such a system. It also relates to a timepiece, in particular a wristwatch, comprising such a system or such a movement. Finally, it relates to a setting process.
Le montage traditionnel d'un oscillateur balancier-spiral au sein d'un mouvement horloger s'effectue par l'entremise d'un ensemble de pièces prédisposées sur le pont de balancier qui sont prévues pour autoriser son déplacement en rotation, et ainsi permettre une mise au repère aisée de l'échappement de sorte à ce qu'au point mort, ou position d'équilibre, le centre de la cheville de plateau de balancier soit sur la ligne reliant les pivotements de l'ancre, ou du bloqueur, et du balancier. Pour ce faire, l'extrémité extérieure du ressort-spiral est usuellement fixée au pont de balancier par l'intermédiaire d'un support de fixation, par exemple un porte-piton, qui est déplaçable en rotation relativement au bâti du mouvement horloger. Le démontage de cet organe de positionnement angulaire du pont de balancier induit la perte du réglage du repère.The traditional assembly of a balance-spring oscillator within a watch movement is carried out by means of a set of parts predisposed on the balance bridge which are provided to allow its movement in rotation, and thus allow a easy setting of the escapement so that at neutral, or equilibrium position, the center of the balance plate pin is on the line connecting the pivot points of the anchor, or of the blocker, and of the balance. To do this, the outer end of the hairspring is usually fixed to the balance bridge by means of a fixing support, for example a stud holder, which is movable in rotation relative to the frame of the watch movement. The removal of this angular positioning member from the balance bridge induces the loss of the setting of the mark.
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Dans tous les documents connus de l'art antérieur qui divulguent un ressort-spiral prévu pour être déplaçable relativement à l'ébauche sur laquelle il est monté, il est nécessaire d'effectuer des opérations de réglage de l'oscillateur, notamment une mise au repère, lors du montage de l'oscillateur dans le mouvement. Ceci peut allonger et/ou complexifier les opérations d'assemblage du mouvement.In all the documents known from the prior art which disclose a spiral spring intended to be movable relative to the blank on which it is mounted, it is necessary to perform operations for adjusting the oscillator, in particular a setting. mark, when mounting the oscillator in motion. This can lengthen and / or complicate the movement assembly operations.
Le but de l'invention est de fournir un système de ressort-spiral de mouvement horloger permettant de remédier aux inconvénients mentionnés précédemment et d'améliorer les systèmes connus de l'art antérieur. En particulier, l'invention propose un système permettant de simplifier les opérations de montage et de remontage de l'oscillateur d'un mouvement horloger mécanique.The aim of the invention is to provide a hairspring system for a watch movement which makes it possible to remedy the aforementioned drawbacks and to improve the systems known in the art. prior. In particular, the invention proposes a system making it possible to simplify the operations of mounting and winding the oscillator of a mechanical watch movement.
Un système selon l'invention est défini par la revendication 1.A system according to the invention is defined by
Différents modes de réalisation du système sont définis par les revendications dépendantes 2 à 11.Different embodiments of the system are defined by dependent claims 2 to 11.
Un mouvement selon l'invention est défini par la revendication 12.A movement according to the invention is defined by claim 12.
Un mode de réalisation du mouvement est défini par la revendication dépendante 13.One embodiment of the movement is defined by dependent claim 13.
Une pièce d'horlogerie selon l'invention est définie par la revendication 14.A timepiece according to the invention is defined by claim 14.
Un procédé de mise au repère selon l'invention est défini par la revendication 15.
- Les
figures 1 à 6 représentent, à titre d'exemple, un premier mode de réalisation d'une pièce d'horlogerie incluant un premier mode de réalisation d'un système selon l'invention. - Les
figures 7 à 9 représentent, à titre d'exemple, un deuxième mode de réalisation d'une pièce d'horlogerie incluant un deuxième mode de réalisation d'un système selon l'invention.
- The
figures 1 to 6 represent, by way of example, a first embodiment of a timepiece including a first embodiment of a system according to the invention. - The
figures 7 to 9 show, by way of example, a second embodiment of a timepiece including a second embodiment of a system according to the invention.
Un premier mode de réalisation d'une pièce d'horlogerie 120, en particulier d'une montre-bracelet, est décrit ci-après en référence aux
Le système comprend :
- un ressort-
spiral 1, une ébauche 3 du mouvement,- un premier élément d'indexation 1c en position, notamment en position angulaire, d'une extrémité extérieure 10 du ressort-spiral relativement à l'ébauche 3, notamment un premier élément d'indexation 1c destiné à coopérer avec un deuxième élément d'indexation 3c prévu sur l'ébauche 3, et
- un organe OL de liaison de l'extrémité extérieure 10 du ressort-spiral à l'ébauche 3,
- a
spiral spring 1, - a
draft 3 of the movement, - a
first indexing element 1c in position, in particular in angular position, of anouter end 10 of the spiral spring relative to the blank 3, in particular afirst indexing element 1c intended to cooperate with asecond indexing element 3c provided ondraft 3, and - a member OL for connecting the
outer end 10 of the spiral spring to the blank 3,
Le premier élément d'indexation 1c comprend un axe monté sur l'organe de liaison. En particulier, le premier élément d'indexation peut comprendre ou être un pied-vis 1c monté sur l'organe OL de liaison. Avantageusement, le premier élément d'indexation est destiné à coopérer avec un deuxième élément d'indexation 3c prévu sur l'ébauche. Notamment, le deuxième élément d'indexation est un alésage 3c pratiqué sur l'ébauche. Ainsi, grâce à l'élément d'indexation, la position angulaire du spiral vis-à-vis du bâti du mouvement est conservée en cas de démontage de l'oscillateur. Le système peut comprendre un premier élément d'immobilisation V1 de l'organe OL de liaison par rapport au premier élément d'indexation 1c.The
Par élément d'indexation, nous entendons tout élément capable de mémoriser une position, notamment une position angulaire, d'un ressort-spiral vis-à-vis d'une ébauche.By indexing element, we mean any element capable of memorizing a position, in particular an angular position, of a spiral spring with respect to a blank.
Dans le premier mode de réalisation, le spiral 1 de l'oscillateur est lié à un balancier, notamment de manière habituelle par l'intermédiaire d'une virole. L'organe de liaison OL comprend une première partie ou un premier corps d'organe de liaison OL1 et une deuxième partie ou un deuxième corps d'organe de liaison OL2. Par exemple, la deuxième partie d'organe de liaison OL2 est venue de fabrication avec l'extrémité extérieure 10 du spiral ou est monobloc avec le spiral. La première partie de l'organe de liaison OL1 est par exemple fixée ou rapportée sur la deuxième partie de l'organe de liaison OL2, notamment par l'entremise de goupilles ou de rivets 9. Pour ce faire, les première et deuxième parties comprennent par exemple des trous destinés à recevoir les goupilles ou les rivets. La deuxième partie de l'organe OL2 est spécifiquement prévue pour constituer une interface entre le corps du spiral fabriqué en un premier matériau, par exemple du silicium, et la première partie de l'organe de liaison OL1, fabriquée dans un deuxième matériau, par exemple du NiP.In the first embodiment, the
Alternativement, l'organe de liaison OL peut être intégralement venu de fabrication avec l'extrémité extérieure 10 du ressort-spiral 1 ou être monobloc avec le ressort-spiral.Alternatively, the link member OL can be fully manufactured with the
De préférence, l'organe de liaison se trouve au niveau du plan médian P du ressort-spiral. En particulier, l'organe de liaison peut se trouver entre un premier plan P1 et un deuxième plan P2, les premier plan et deuxième plan étant symétriques par rapport au plan P et distant d'une distance d. Par exemple, d est inférieure à 1.2 mm, voire inférieure à 1 mm, voire inférieure à 0.8 mm. De préférence encore, l'interface entre la première partie de l'organe de liaison OL1 et la deuxième partie de l'organe OL2 est située au niveau du plan médian P du ressort-spiral. En particulier, l'interface entre la première partie de l'organe de liaison OL1 et la deuxième partie de l'organe OL2 peut se trouver entre le premier plan P1 et le deuxième plan P2.Preferably, the connecting member is located at the level of the median plane P of the spiral spring. In particular, the connecting member may be located between a first plane P1 and a second plane P2, the first plane and second plane being symmetrical with respect to the plane P and distant by a distance d. For example, d is less than 1.2 mm, or even less than 1 mm, or even less than 0.8 mm. More preferably, the interface between the first part of the link member OL1 and the second part of the member OL2 is located at the level of the median plane P of the spiral spring. In particular, the interface between the first part of the link member OL1 and the second part of the member OL2 can be located between the first plane P1 and the second plane P2.
De préférence, la liaison mécanique entre la première partie de l'organe de liaison OL1 et la deuxième partie de l'organe OL2 est non-démontable, c'est-à-dire non-démontable sans endommager la liaison mécanique et/ou la première partie de l'organe de liaison et/ou la deuxième partie de l'organe de liaison.Preferably, the mechanical connection between the first part of the link member OL1 and the second part of the member OL2 is non-removable, that is to say non-removable without damaging the mechanical connection and / or the first part of the connecting member and / or the second part of the connecting member.
La première partie de l'organe de liaison OL1 comporte des éléments de guidage en rotation du ressort-spiral, en particulier de l'extrémité extérieure du ressort-spiral. Les éléments de guidage comprennent des ouvertures oblongues 1a, 2a, par exemple deux rainures en forme d'arcs de cercles concentriques. Les rainures oblongues peuvent être pratiquées sur des rayons différents. Avantageusement, le centre de rotation, ou le centre des arcs de cercles, coïncident sensiblement avec le centre du ressort-spiral. Les ouvertures 1a, 2a sont par exemple prévues pour coopérer avec d'autres éléments de guidage, comme des tenons de positionnement 3a rapportés sur l'ébauche 3, en particulier sur la platine 3. Ainsi, les éléments de guidage constituent également des éléments de de centrage du ressort-spiral. Préférentiellement, les ouvertures 1a, 2a sont au moins au nombre de deux afin d'assurer un positionnement radial du ressort-spiral qui soit aussi précis que permis par les tolérances de fabrication et d'assemblage. Idéalement, ces éléments de guidage permettent de conserver la forme initiale, sans contrainte ou de contraintes minimales, du ressort-spiral en position de repos de l'organe régulateur.The first part of the link member OL1 comprises elements for guiding the spiral spring in rotation, in particular the outer end of the spiral spring. The guide elements comprise
Le système peut comprendre un deuxième élément d'immobilisation 1b, en particulier une surface d'immobilisation 1b, de la première partie de l'organe de liaison relativement à l'ébauche 3 ou de l'extrémité extérieure 10 du ressort-spiral relativement à l'ébauche 3, notamment un deuxième élément d'immobilisation 1b, en particulier une surface d'immobilisation 1b, destiné à coopérer avec au moins un troisième élément d'immobilisation 3b, en particulier une surface d'immobilisation 3b, de l'ébauche 3.The system can comprise a second
Avantageusement, au moins un tenon 3a est un pied-vis. Ce dernier coopère de préférence avec le troisième élément d'immobilisation. Le pied-vis constitue un moyen permettant la fixation ou l'immobilisation du ressort-spiral sur le bâti du mouvement. Outre ses fonctions de guidage en rotation du spiral en coopération avec une rainure 2a, le pied-vis 3a peut également être prévu pour participer au positionnement et à la fixation d'un pont de balancier 4 sur la platine 3 comme représenté sur la
Le système comprend un premier élément de guidage 2a du premier élément d'indexation 1c relativement à la première partie OL1 de l'organe de liaison. Notamment, le premier élément de guidage comprend une ouverture oblongue 2a destinée à coopérer avec un deuxième élément de guidage 10c, comme un méplat ou deux méplats pratiqués sur le pied-vis 1c. Le premier élément d'indexation est avantageusement doté d'une géométrie sensiblement complémentaire à celle de la découpe oblongue 2a, par exemple une géométrie incluant par exemple un ou deux méplats 10c. Ces méplats peuvent être plans. Un ou plusieurs méplats 10c peuvent alternativement ne pas être tout-à-fait plans, mais présenter une convexité ou une concavité complémentaire à celle du bord d'ouverture avec lequel le méplat doit coopérer. Dans le premier mode de réalisation, le premier élément de guidage 2a du premier élément d'indexation 1c relativement à la première partie OL1 de l'organe de liaison est un élément de guidage en rotation du ressort-spiral, en particulier de l'extrémité extérieure du ressort-spiral.The system comprises a
Le système peut comprendre un premier élément d'immobilisation V1 de l'organe OL de liaison par rapport au premier élément d'indexation 1c. Ainsi, le premier élément d'indexation peut être solidarisé ou fixé à la première partie de l'organe de liaison OL1 par le biais du premier élément d'immobilisation V1. Le premier élément d'immobilisation peut être une vis V1. Pour réaliser l'immobilisation ou la fixation, la première partie de l'organe de liaison peut être serrée entre la tête de la vis V1 et un ou plusieurs épaulements 10d réalisés aux extrémités inférieures du ou des méplats, comme représenté sur la
Lors du montage du spiral sur le mouvement, le pied-vis 1c, solidarisé ou fixé au spiral, notamment fixé à la première partie de l'organe de liaison OL1, est prévu pour s'insérer au sein de l'alésage 3c de la platine 3. La coopération de ces éléments garantit un positionnement angulaire du ressort-spiral aussi précis que permis par les tolérances de fabrication et d'assemblage.When mounting the hairspring on the movement, the
L'opération de mise au repère est rendue possible dès lors que la vis de fixation V1 du pied-vis 1c et une vis V3 du pied-vis 3a sont dévissées. Dans cette configuration, le ressort-spiral peut être déplacé en rotation, notamment, l'extrémité extérieure 10 du ressort-spiral peut être déplacée en rotation. Il s'ensuit un déplacement en rotation du balancier, ce qui permet la mise au repère. Pour assurer cette mise au repère, le système comprend avantageusement un premier élément de réglage 1d de la position de l'extrémité extérieure 10 du ressort-spiral relativement à l'ébauche. Ce premier élément de réglage est prévu pour coopérer avec un deuxième élément de réglage 3d pour assurer le réglage. Comme représenté sur la
Par exemple, le secteur denté 1d peut être réalisé sur la première partie de l'organe de liaison OL1. Notamment, le secteur peut être prévu sur un arc concentrique au spiral et au balancier. Ainsi, l'écrou denté peut engrener avec le secteur denté de sorte qu'une rotation de l'écrou entraîne une rotation du secteur denté et, de fait, une rotation du spiral. Pour permettre la rotation de l'écrou, ce dernier présente de préférence une conformation d'entraînement à l'aide d'un outil, par exemple une fente 3e permettant l'entraînement de l'écrou à l'aide d'un tournevis. Préférentiellement, l'écrou de réglage 3d est monté à friction sur l'ébauche 3, ou coopère avec un ressort de friction 6, de telle sorte qu'un couple résistif s'oppose à sa rotation et, en conséquence, s'oppose à la rotation du ressort-spiral. Le ressort de friction peut comprendre une lame ressort qui est agencée pour coopérer, directement ou indirectement, avec l'écrou denté de sorte à créer un couple de friction s'opposant à la rotation de l'écrou denté. Cette lame ressort peut être fixée sur l'ébauche et appuyer sur une face de l'écrou. La lame ressort peut être précontrainte pour appliquer en permanence une action mécanique sur l'écrou.For example, the
La définition des dentures des éléments de réglage, ainsi que le choix de la valeur du couple résistif, participent à la mise en œuvre d'un dispositif de déplacement fin du spiral relativement à son support de fixation.The definition of the teeth of the adjustment elements, as well as the choice of the value of the resistive torque, participate in the implementation of a device for fine movement of the hairspring relative to its fixing support.
Le système comprend de préférence un premier élément de butée, notamment une rainure 1a ou une goupille destinée à coopérer avec un deuxième élément de butée 3a prévu sur la platine, notamment une goupille ou une rainure. Préférentiellement, la plage angulaire de rotation du ressort-spiral est définie par des butées. Par exemple, de premières butées peuvent être constituées par les extrémités 1e des découpes oblongues 1a, qui sont prévues pour coopérer avec des deuxièmes butées, par exemple un ou plusieurs tenons 3a. Dans le premier mode de réalisation, une seule découpe 1a forme les premières butées 1e. Cette plage angulaire de rotation peut par exemple être comprise entre 20° et 40°.The system preferably comprises a first stop element, in particular a
Un deuxième mode de réalisation d'une pièce d'horlogerie 220, en particulier d'une montre-bracelet, est décrit ci-après en référence aux
Principalement, le deuxième mode de réalisation diffère du premier mode de réalisation en ce que des fonctions sont réparties entre les première et deuxième parties de l'organe de liaison OL1, OL2. En effet, dans le premier mode de réalisation, les fonctions (guidage, immobilisation, indexation, réglage, butée, repère) sont concentrées sur la première partie de l'organe de liaison.Mainly, the second embodiment differs from the first embodiment in that functions are distributed between the first and second parts of the link member OL1, OL2. Indeed, in the first embodiment, the functions (guidance, immobilization, indexing, adjustment, stop, mark) are concentrated on the first part of the connecting member.
Dans le deuxième mode de réalisation, les éléments de guidage 1a peuvent par exemple être formés sur la deuxième partie de l'organe de liaison OL2 qui est venue de fabrication avec le corps du spiral. Une telle solution permet de minimiser la chaîne de tolérances et ainsi d'assurer un positionnement radial particulièrement précis du ressort-spiral.In the second embodiment, the
Dans ce deuxième mode de réalisation, une découpe oblongue 10a est spécialement dédiée à la mise en œuvre des éléments d'indexation 1c de la position angulaire du spiral. Leur fonctionnement est identique à ceux décrits précédemment, le pied-vis 1c étant prévu pour être logé au sein d'un alésage 3c réalisé dans la platine 3. Les
Comme décrit précédemment, des éléments de réglage ou d'entraînement 1d peuvent être portés par la première partie de l'organe de liaison OL1. Ces éléments se présentent sous la forme d'une denture 1d qui est susceptible d'être entraînée par la denture d'un écrou de réglage 3d monté pivotant sur la platine 3. Le couple de friction prévu pour s'opposer à la rotation du ressort-spiral est ici assuré par un ressort 6 rapporté sous le pont de balancier et qui est prévu pour agir à l'encontre d'une surface d'appui 1b de la première partie de l'organe de liaison OL1. Ainsi, un couple de friction s'opposant indirectement à la rotation de l'écrou denté est créé.As described above, adjustment or drive
Alternativement, la fixation du spiral relativement à la platine peut être assurée par friction, notamment par une friction due au ressort de friction. Ainsi, le spiral peut être maintenu sur l'ébauche uniquement par une force de friction, induite par une force d'appui. Ainsi, la fixation du spiral peut être réalisée indépendamment de toute vis de fixation.Alternatively, the fixing of the hairspring relative to the plate can be ensured by friction, in particular by friction due to the friction spring. Thus, the hairspring can be held on the blank only by a frictional force, induced by a support force. Thus, the fixing of the hairspring can be carried out independently of any fixing screw.
Le système peut comprendre un premier repère 1f de la position de l'extrémité extérieure du ressort-spiral relativement à l'ébauche, notamment une première denture 1f ou un premier repère destiné à coopérer respectivement avec un deuxième repère 3f prévu sur l'ébauche ou une deuxième denture prévue sur l'ébauche. Des éléments de repère ou de quittance de l'indexation angulaire du ressort-spiral se présentent ici sous la forme d'une micro-denture 1f, formée sur la première partie de l'organe de liaison OL1, prévue pour coopérer avec un repère visuel 3f réalisé sur la platine.The system may include a
Bien entendu, les différentes fonctions évoquées précédemment peuvent être répartis sur les première et deuxième parties de l'organe de liaison à la guise de l'homme de métier en fonction des contraintes de construction et de l'environnement de l'organe réglant. Autrement dit, certaines fonctions peuvent être supportées aussi bien par la première partie de l'organe de liaison que par la deuxième partie de l'organe de liaison.Of course, the various functions mentioned above can be distributed over the first and second parts of the connecting member as desired by those skilled in the art depending on the construction constraints and the environment of the regulating member. In other words, certain functions can be supported both by the first part of the connecting member and by the second part of the connecting member.
Tout ou partie des autres caractéristiques du deuxième mode de réalisation qui ne sont pas décrites plus haut peuvent être identiques aux caractéristiques équivalentes du premier mode de réalisation.All or some of the other characteristics of the second embodiment which are not described above may be identical to the equivalent characteristics of the first embodiment.
Dans un troisième mode de réalisation (non représenté), les première et deuxième parties de l'organe de liaison OL1 et OL2 peuvent être confondues de telle sorte qu'un unique organe de liaison OL venu de fabrication avec le corps du spiral porte l'ensemble des fonctions. Pour un spiral réalisé en un matériau fragile tel que le silicium, les surfaces d'appui 1b pourront par exemple être durcies par un revêtement localisé de façon à soutenir les efforts axiaux, notamment les efforts de vissage.In a third embodiment (not shown), the first and second parts of the connection member OL1 and OL2 can be merged so that a single link member OL come from manufacture with the body of the hairspring carries the set of functions. For a hairspring made of a fragile material such as silicon, the bearing
Dans les différents modes de réalisation, l'ébauche est de préférence une platine.In the various embodiments, the blank is preferably a plate.
Dans les différents modes de réalisation, avantageusement, au moins un organe de liaison, venu de fabrication ou non avec l'extrémité extérieure du ressort-spiral, comporte des éléments de déplacement en rotation du ressort-spiral vis-à-vis de son support de telle sorte qu'il est possible d'ajuster la position angulaire du ressort-spiral relativement à son support. Ces éléments de déplacement sont avantageusement combinés avec des éléments d'indexation de la position angulaire du spiral relativement au bâti. Ces éléments de déplacement peuvent en outre être combinés à des éléments de réglage fin de la position angulaire du spiral relativement au bâti.In the various embodiments, advantageously, at least one connecting member, whether or not produced with the outer end of the spiral spring, comprises elements for moving the spiral spring in rotation with respect to its support. so that it is possible to adjust the angular position of the spiral spring relative to its support. These displacement elements are advantageously combined with elements for indexing the angular position of the hairspring relative to the frame. These displacement elements can also be combined with elements for fine adjustment of the angular position of the hairspring relative to the frame.
Avantageusement, une telle conception permet de mettre en œuvre un système de mise au repère d'un oscillateur dont le ressort-spiral est fixé sur le mouvement par une ou plusieurs ébauches non déplaçables relativement au bâti.Advantageously, such a design makes it possible to implement a system for setting the mark of an oscillator, the hairspring of which is fixed to the movement by one or more blanks which cannot be moved relative to the frame.
Avantageusement, le système permet un déplacement en rotation d'un ressort-spiral vis-à-vis de son support de fixation de telle sorte que l'opération de mise au repère puisse être effectuée directement par la rotation du spiral, et non par la rotation de son support de fixation. Une telle solution peut être particulièrement avantageuse pour un oscillateur dont le spiral est fixé à un support non déplaçable vis-à-vis du bâti du mouvement d'horlogerie, par exemple une ou plusieurs ébauches telles qu'une platine et/ou un pont de balancier. Le système selon l'invention a pour avantage de permettre un ajustement du repère qui présente la particularité de pouvoir être conservé après démontage de l'oscillateur de son support grâce aux éléments d'indexation de la position angulaire du ressort-spiral. Par ailleurs, le système peut permettre de mettre en œuvre des éléments d'ajustement fin du repère par le biais d'éléments de réglage portés par le système de ressort-spiral.Advantageously, the system allows a rotational movement of a hairspring vis-à-vis its fixing support so that the setting operation can be performed directly by the rotation of the hairspring, and not by the rotation of its mounting bracket. A such a solution may be particularly advantageous for an oscillator the hairspring of which is fixed to a support which cannot be moved vis-à-vis the frame of the clockwork movement, for example one or more blanks such as a plate and / or a balance bridge . The system according to the invention has the advantage of allowing an adjustment of the mark which has the particularity of being able to be kept after removing the oscillator from its support by virtue of the elements for indexing the angular position of the spiral spring. Furthermore, the system can make it possible to implement fine adjustment elements of the mark by means of adjustment elements carried by the hairspring system.
Un tel système est adapté à tout type d'échappement d'horlogerie.Such a system is suitable for any type of watch exhaust.
Dans les modes de réalisation décrits précédemment, l'extrémité extérieure du spiral est fixée au bâti du mouvement par la platine et le pont de balancier ou par la platine indépendamment du pont de balancier. Ces architectures permettent notamment de réduire l'encombrement axial de l'oscillateur et de simplifier le système de réglage de l'ébat axial du balancier assemblé.In the embodiments described above, the outer end of the hairspring is fixed to the frame of the movement by the plate and the balance bridge or by the plate independently of the balance bridge. These architectures make it possible in particular to reduce the axial bulk of the oscillator and to simplify the system for adjusting the axial range of the assembled balance.
Dans les modes de réalisation du mouvement horloger, le mouvement comprend l'ébauche, notamment la platine 3, et un balancier 99. De préférence, le système de ressort-spiral est disposé entre le balancier et la platine. Eventuellement, un élément du système de ressort-spiral, par exemple un premier élément d'indexation 1c, comme un pied-vis, ou un moyen de guidage comme un tenon 3a ou un élément de réglage, comme un écrou 3d, peut toutefois être disposé dans l'ébauche ou être disposé partiellement dans l'ébauche.In the embodiments of the watch movement, the movement comprises the blank, in particular the
Sauf incompatibilité technique ou logique, les différentes caractéristiques techniques des premier, deuxième et troisième modes de réalisation peuvent être combinées.Unless there is a technical or logical incompatibility, the various technical characteristics of the first, second and third embodiments can be combined.
L'invention porte encore sur un système 100; 200 de ressort-spiral de mouvement horloger 110 ; 120, comprenant :
- un ressort-
spiral 1, et - un organe OL de liaison de l'extrémité extérieure 10 du ressort-spiral à une ébauche 3 du mouvement, l'organe de liaison incluant un premier élément de réglage 1d de la position de l'extrémité extérieure 10 du ressort-spiral relativement à l'ébauche, notamment
un premier élément 1d de réglage destiné à coopérer avec un deuxième élément de réglage 3d prévu sur l'ébauche.
- a
spiral spring 1, and - a member OL for connecting the
outer end 10 of the spiral spring to a blank 3 of the movement, the connecting member including afirst adjustment element 1d for the position of theouter end 10 of the spiral spring relative to the 'blank, in particular afirst adjustment element 1d intended to cooperate with asecond adjustment element 3d provided on the blank.
Selon l'invention, le procédé de mise au repère comprend les étapes suivantes :
- libérer le premier élément d'indexation 1c relativement à l'organe de liaison OL ;
- déplacer l'organe de liaison OL ;
- fixer la position du
premier élément d'indexation 1c relativement à l'organe de de liaison OL.
- releasing the
first indexing element 1c relative to the link member OL; - move the OL linker;
- fix the position of the
first indexing element 1c relative to the linking member OL.
La libération du premier élément d'indexation est par exemple mise en œuvre en agissant sur le premier élément d'immobilisation V1 de l'organe OL de liaison par rapport au premier élément d'indexation 1c. Cette action consiste par exemple à dévisser la vis V1. Dès lors, le premier élément d'indexation peut être déplacé relativement à l'organe de liaison et réciproquement.The release of the first indexing element is for example implemented by acting on the first immobilizing element V1 of the linking member OL with respect to the
Le déplacement du premier élément d'indexation peut être réalisé par action directe de l'horloger sur l'élément d'indexation ou préférentiellement par action directe de l'horloger sur l'organe de liaison. Par action directe, on entend aussi une action de l'horloger à l'aide d'un outil. Alternativement, le déplacement du premier élément d'indexation peut être réalisé par action indirecte sur l'élément d'indexation ou préférentiellement sur l'organe de liaison. Notamment, cette action indirecte peut être réalisée via le premier élément de réglage 1d de la position de l'extrémité extérieure 10 du ressort-spiral relativement à l'ébauche, notamment via l'écrou denté 3d, monté mobile en rotation sur l'ébauche 3. Ainsi, l'horloger peut déplacer le premier élément d'indexation relativement à l'organe de liaison en agissant à l'aide d'un outil sur l'écrou denté.The movement of the first indexing element can be carried out by direct action of the watchmaker on the indexing element or preferably by direct action of the watchmaker on the connecting member. Direct action is also understood to mean action by the watchmaker using a tool. Alternatively, the displacement of the first indexing element can be carried out by indirect action on the indexing element or preferably on the connecting member. In particular, this indirect action can be carried out via the
La fixation du premier élément d'indexation est par exemple mise en œuvre en agissant sur le premier élément d'immobilisation V1 de l'organe OL de liaison par rapport au premier élément d'indexation 1c. Cette action consiste par exemple à visser la vis V1. Dès lors, le premier élément d'indexation ne peut plus être déplacé.The fixing of the first indexing element is for example implemented by acting on the first immobilizing element V1 of the linking member OL with respect to the
Optionnellement, avant ou après la libération du premier élément d'indexation, on peut libérer la surface d'immobilisation de l'organe de liaison relativement à la surface d'immobilisation de l'ébauche. La libération de la surface d'immobilisation est par exemple mise en œuvre en agissant sur la vis V3 du pied-vis 3a. Cette action consiste par exemple à dévisser la vis V3. Dès lors, l'organe peut être déplacé relativement à l'ébauche.Optionally, before or after the release of the first indexing element, the immobilization surface of the connecting member can be released relative to the immobilization surface of the blank. The release of the immobilization surface is for example implemented by acting on the screw V3 of the
Optionnellement, avant ou après la fixation du premier élément d'indexation, on peut fixer la surface d'immobilisation de l'organe de liaison relativement à la surface d'immobilisation de l'ébauche. La fixation de la surface d'immobilisation est par exemple mise en œuvre en agissant sur la vis V3 du pied-vis 3a. Cette action consiste par exemple à visser la vis V3. Dès lors, l'organe est immobilisé relativement à l'ébauche.Optionally, before or after the fixing of the first indexing element, it is possible to fix the immobilization surface of the connecting member relative to the immobilization surface of the blank. The fixing of the immobilization surface is for example implemented by acting on the screw V3 of the
Dans tout ce document, les termes « spiral » et « ressort-spiral » sont employés indistinctement pour désigner le même élément.Throughout this document, the terms “hairspring” and “hairspring” are used interchangeably to designate the same element.
Dans ce document, les adjectifs numéraux ordinaux « premier », « deuxième », « troisième » et « quatrième » ont un sens distinctif. Ils servent à distinguer les éléments les uns des autres.In this document, the ordinal numeral adjectives "first", "second", "third" and "fourth" have a distinctive meaning. They are used to distinguish the elements from one another.
De préférence, la présente invention exclut la fixation de l'extrémité extérieure du ressort-spiral à l'aide d'un piton ou à l'aide d'un mécanisme de fixation élastique dédié à venir coopérer avec un piton pour pincer le ressort-spiral.Preferably, the present invention excludes the fixing of the outer end of the spiral spring with the aid of a eyebolt or with the aid of an elastic fixing mechanism dedicated to come to cooperate with a eyebolt to clamp the spring. spiral.
Claims (15)
- A balance spring system (100; 200) of a horology movement (110; 120), comprising:- a balance spring (1);- a movement blank (3);- a first element (1c) for indexing the position of an outer end (10) of the balance spring relative to the blank (3), and- a unit (OL) for connection of the outer end (10) of the balance spring to the movement blank (3),the first indexing element (1c) being designed such as to be displaceable relative to the connection unit (OL), being capable to memorize a position, in particular an angular position, of the balance spring relative to the blank and being intended to cooperate with a second indexing element (3c) provided on the blank (3), the first indexing element (1c) comprising a shaft which is fitted on the connection unit (OL), in particular a screw foot (1c) which is fitted on the connection unit (OL) and the second indexing element (3c) being a bore (3c) provided in the blank.
- The system as claimed in the preceding claim, wherein the connection unit is at a median plane (P) of the balance spring.
- The system as claimed in one of the preceding claims, wherein the shaft which is fitted on the connection unit (OL) is designed to cooperate with a bore (3c) provided in the blank and/or wherein the system comprises a first element (V1) for immobilization of the connection unit (OL) relative to the first indexing element (1c) and/or wherein the system comprises a first element (1a, 2a) for guiding of the first indexing element (1c) .
- The system as claimed in one of the preceding claims, wherein it comprises a first element (1d) for adjustment of the position of the outer end (10) of the balance spring relative to the blank fitted such as to be mobile in rotation on the blank.
- The system as claimed in the preceding claim, wherein a friction element (6) is designed to cooperate directly or indirectly with the second adjustment element, such as to create friction torque which opposes the rotation of the second adjustment element.
- The system as claimed in one of the preceding claims, wherein it comprises a third element (1a) for guiding of the system in rotation relative to the blank.
- The system as claimed in one of the preceding claims, wherein it comprises a second element (1b) for immobilization of the connection unit relative to the blank (3) or of the outer end (10) of the balance spring relative to the blank (3) which is designed to cooperate with at least a third immobilization element (3b).
- The system as claimed in one of the preceding claims, wherein it comprises a first adjusting-mark (1f) for the position of the outer end of the balance spring relative to the blank and/or wherein the blank is a plate.
- The system as claimed in one of the preceding claims, wherein the connection unit (OL) is produced integrally with the outer end (10) of the balance spring (1) or is in a single piece with the balance spring.
- The system as claimed in one of claims 1 to 8, wherein the connection unit (OL) comprises a first body (OL1) and a second body (OL2) produced integrally with the outer end (10) of the balance spring (1) or in a single piece with the balance spring, the first body (OL1) being permanently secured on the second body (OL2) or produced integrally with the second body (OL2).
- The system as claimed in the preceding claim, wherein the interface between the first body (OL1) and the second body (OL2) is at a median plane (P) of the balance spring.
- A horology movement (110; 210) comprising a system (100; 200) as claimed in one of the preceding claims.
- The horology movement as claimed in the preceding claim, wherein the movement comprises a movement blank and a balance (99), the balance spring system being placed between the balance and the movement blank.
- A horology piece (120; 220) comprising a system (100; 200) as claimed in one of claims 1 to 11, or a movement as claimed in claim 12 or 13.
- A method for putting a horology movement as claimed in claim 12 or 13 into beat, wherein it comprises the following steps:- releasing the first indexing element (1c) relative to the connection unit (OL);- displacing the connection unit (OL); and- securing the position of the first indexing element (1c) relative to the connection unit (OL) .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15196169.5A EP3032354B1 (en) | 2014-11-27 | 2015-11-25 | System for attaching a hairspring |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14195264 | 2014-11-27 | ||
EP15196169.5A EP3032354B1 (en) | 2014-11-27 | 2015-11-25 | System for attaching a hairspring |
Publications (2)
Publication Number | Publication Date |
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EP3032354A1 EP3032354A1 (en) | 2016-06-15 |
EP3032354B1 true EP3032354B1 (en) | 2021-05-26 |
Family
ID=51951738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15196169.5A Active EP3032354B1 (en) | 2014-11-27 | 2015-11-25 | System for attaching a hairspring |
Country Status (4)
Country | Link |
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US (1) | US9811054B2 (en) |
EP (1) | EP3032354B1 (en) |
JP (1) | JP6710041B2 (en) |
CN (1) | CN105652629B (en) |
Families Citing this family (5)
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EP3179314B1 (en) * | 2015-12-11 | 2018-11-14 | ETA SA Manufacture Horlogère Suisse | Stud support with simplified assembly |
EP3470934B1 (en) * | 2017-10-10 | 2020-08-19 | ETA SA Manufacture Horlogère Suisse | Shock absorbing system with angular locking |
US20220390896A1 (en) * | 2021-06-03 | 2022-12-08 | Rolex Sa | Timepiece oscillator assembly device |
EP4148505A1 (en) * | 2021-09-08 | 2023-03-15 | Rolex Sa | Timepiece module |
EP4407382A1 (en) | 2023-01-25 | 2024-07-31 | Rolex Sa | Hairspring for clock movement |
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CH414468A (en) * | 1963-11-27 | 1966-01-31 | Ebauches Sa | Device for fixing the outer end of a hairspring to the frame of a timepiece |
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2015
- 2015-11-16 JP JP2015223787A patent/JP6710041B2/en active Active
- 2015-11-25 EP EP15196169.5A patent/EP3032354B1/en active Active
- 2015-11-25 US US14/952,414 patent/US9811054B2/en active Active
- 2015-11-26 CN CN201511035360.6A patent/CN105652629B/en active Active
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Also Published As
Publication number | Publication date |
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JP2016102788A (en) | 2016-06-02 |
US20160154379A1 (en) | 2016-06-02 |
CN105652629B (en) | 2020-05-19 |
US9811054B2 (en) | 2017-11-07 |
JP6710041B2 (en) | 2020-06-17 |
CN105652629A (en) | 2016-06-08 |
EP3032354A1 (en) | 2016-06-15 |
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