EP3172626A1 - Biegeachszapfen - Google Patents

Biegeachszapfen

Info

Publication number
EP3172626A1
EP3172626A1 EP15744502.4A EP15744502A EP3172626A1 EP 3172626 A1 EP3172626 A1 EP 3172626A1 EP 15744502 A EP15744502 A EP 15744502A EP 3172626 A1 EP3172626 A1 EP 3172626A1
Authority
EP
European Patent Office
Prior art keywords
pivot
blade
axis
blades
integral
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15744502.4A
Other languages
English (en)
French (fr)
Other versions
EP3172626B1 (de
Inventor
Dominique Renaud
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.)
Besse Francois
Original Assignee
Dominique Renaud SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dominique Renaud SA filed Critical Dominique Renaud SA
Publication of EP3172626A1 publication Critical patent/EP3172626A1/de
Application granted granted Critical
Publication of EP3172626B1 publication Critical patent/EP3172626B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/02—Oscillators acting by gravity, e.g. pendulum swinging in a plane
    • 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
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/02—Shock-damping bearings
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/06—Manufacture or mounting processes
    • 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
    • G04B37/00—Cases
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/0409—Fixed mounting relating to wall clocks and pendulums
    • 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
    • G04B37/00—Cases
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/0409—Fixed mounting relating to wall clocks and pendulums
    • G04B37/0418—Fixed mounting relating to wall clocks and pendulums with shock damping means

Definitions

  • the present invention relates to the field of watchmaking. More particularly, it relates to a swivel pivot type blade.
  • pivots have a low resistance to pivoting and contribute, for example, to improve the quality factor of this type of resonator.
  • pivots are not usable in a portable timepiece such as a watch because the prism is simply placed in the groove and would not remain in place if the axis of the pivot was no longer horizontal.
  • the present invention aims to provide a blade pivot for a timepiece that can be used regardless of the orientation of the axis of the pivot.
  • the invention relates to a pivot of timepiece pivotally connecting a pivot axis about a first piece with a second piece.
  • the pivot comprises a blade provided with a wire, integral with one of the first or second parts and a support zone secured to the other of the first and second parts and against which the wire of the blade bears, the contact points of the blade and the bearing zone being substantially located on the axis of the pivot.
  • the median plane of the blade passing through the wire defines a blade plane
  • the first and second parts are also integral in translation in the direction orthogonal to the axis of the pivot contained in the blade plane.
  • the invention also relates to a resonator comprising such a pivot.
  • the invention also relates to an oscillator comprising such a resonator.
  • FIG. 1 represents a perspective view of a pivot according to one embodiment of the invention
  • FIGS. 2a and 2b show a view from above and a side view in section of a pivot according to the invention
  • FIG. 3 represents a detail view of a pivot according to one embodiment of the invention
  • FIG. 4 to 8 show pivots and resonators according to the invention.
  • FIGS. 2a and 3 to 6 are perpendicular to the axis of the pivot.
  • a first part 1 is pivotally mounted on a second part 2.
  • the first part 1 comprises three blades 3 having a wire which corresponds to the cutting portion of the blade 3.
  • Each blade 3 is associated with a blade plane 10 located in the median plane of the blade 3 and passing through the wire of the blade and whose Figure 3 shows the profile.
  • the three blades 3 are arranged in the same plane, the wires of the blades being aligned, the two outer blades 3 being oriented in the same direction and the central blade 3 in the opposite direction.
  • the second part 2 comprises three bearing zones constituted by grooves 4 in the form of dihedron, mounted on three arms that includes the piece 2.
  • the son of the blades bear in the bottom of the grooves 4 which are aligned and define the axis of the pivot between the first 1 and second 2 pieces.
  • the opposing arrangement of the blades 3 and grooves 4 translates the first piece 1 in translation with the second piece 2 according to the directions contained in the plane orthogonal to the axis of the pivot and in particular in the direction contained in the blade plane 10 3.
  • the first 1 and second 2 parts are also integral in rotation in all directions perpendicular to the axis of the pivot.
  • Anti-shock devices comprising deformable blades 9 can limit the constraints on the spikes 6 to protect them in case of shock.
  • the limiting tips 6 are integrated with the outer blades 3 and located at their outer end and are capable of bearing against two stones carried by the deformable blades 9.
  • the first part 1 can thus pivot, with a limited angular amplitude, relative to the second part 2 around the pivot axis and this, regardless of the orientation of the pivot axis relative to the horizontal.
  • the first piece can be a rocker, which can be coupled to a resilient return member at the pivot center of the first part 1.
  • a rocker which can be coupled to a resilient return member at the pivot center of the first part 1.
  • a resilient return member at the pivot center of the first part 1.
  • Figure 8 shows a rocker pivoted by a blade pivot according to the invention, wherein the elastic return member is a wire spring 20, preferably corrugated, one end is intended to be fixed on a fixed element, integral with the part 2, such as a rocker bridge for example, and whose second end is fixed offset from the axis of the pivot, on the first part 1.
  • the second end is fixed to the periphery of the part 1, preferably on the balance wheel rim.
  • the wire spring comprises a heel 22 at each of its ends, allowing a fastening by any means, such as screws for example.
  • the thread spring passes through the axis of the pivot of the part 1, which, in the case where the part 1 is cylindrical or circular, implies that the wire is substantially positioned on a diameter of the part 1. From advantageously, it has been noted that such an arrangement of the spring member allows a rotation of the part 1 perfectly positioned on the axis of the pivot, although there is no connection of the elastic member with the piece 1, on this axis.
  • the grooves 4 as shown in the figures, are dihedrons. They could also have other shapes, cylindrical surface extending in the direction of the axis of the pivot and for positioning the blade bearing in the groove in directions perpendicular to the axis of the pivot.
  • the shape of the contact zone depends on the relative value of the spokes of the wire of the blade and the bottom of the groove. If the radius of the bottom of the groove is greater than that of the wire, the contact is made on a single line and the blade 3 is only positioned in the direction perpendicular to the axis of the pivot contained in the blade plane 10.
  • the bottom radius of the groove 4 is smaller than that of the wire, the contact is made in two parallel lines and the blade 3 is also positioned transversely in a direction perpendicular to the axis of the pivot and to the blade plane 10. If the radii the bottom of the groove 4 and the wire of the blade are equal, as in the case shown in Figure 3, the blade 3 is, as in the previous case, positioned in the directions orthogonal to the axis of the pivot. When pivoting, the blade 3 slides into the bottom of the groove 4. It can possibly rolling in the case where the contact intervenes on a single line. In case of rolling, the relative movement of the first 1 and second 2 parts is considered a rotation due to the very small radius of the wire of the blade.
  • the son of the blades and the bottom of the dihedral grooves have cylindrical shapes of revolution substantially of the same radius and are arranged so that the axes of revolution threads of the blades are merged.
  • the radii of the bottom of the grooves could also be smaller than the rays of the wire of the blades.
  • the axis of revolution common to the yarns of the blades is the axis of the pivot.
  • the radius of the blade wire can be greatly reduced compared to the radius of a traditional bearing axis, so that the resistant torque due to the friction of the blades 3 in the grooves 4 is also strongly reduced.
  • the axes of revolution of the opposing yarns of the blades may not be exactly merged or shift slightly during pivoting, because at least one blade 3 rolls on its zone d 'support. In these configurations, the pivoting remains possible with permanent contact of the blades 3 on the support zones through a slight elastic deformation of at least one blade 3 or an arm carrying the blades 3 or the support zones.
  • the blades 3 may be distributed in several separate planes, in particular the blades 3 may be regularly arranged in three planes forming between them angles of 120 °.
  • the bearing areas may be planes perpendicular to the blade planes 10 in their equilibrium position.
  • the central blade 3 in opposition to the two outer blades 3 can be reduced to a tip or vice versa the two outer blades 3 can be reduced to peaks.
  • the first 1 and second 2 parts are secured in translation in the direction orthogonal to the axis of the pivot contained in the plane of the blade with the aid of an organ force of reminder exerting a restoring force, preferably in this direction and now the blade 3 against the bearing zone.
  • the restoring force passes through the axis of the pivot so as not to disturb the pivoting.
  • the restoring force can be obtained by the deformation of an elastic element whose end is, for example, fixed at the axis of the pivot. It can also be obtained by a magnet exerting a force of attraction or magnetic repulsion in the direction perpendicular to the axis of the pivot contained in the plane of the blade.
  • a magnet may be mounted integral with one of the first 1 or second 2 pieces facing a ferromagnetic element in the form of an arc of a circle centered on the axis of the pivot and integral with the other. piece, so that the gap remains constant.
  • the bearing zone is a groove 4 whose bottom has a radius less than or equal to that of the wire of the blade
  • the restoring force keeps the blade 3 in the groove 4 and it is more necessary to provide multiple blades 3 in opposition as in the embodiments of Figure 1, to integrally translate the first 1 and second part 2 in the directions perpendicular to the axis of the pivot. It is possible to make a pivot comprising only one blade 3 and only one groove 4 as in the examples shown in FIGS. 5 to 7 in which the return forces pass through the axis of the pivot only in the position represented for a reason that will appear later.
  • the blades are mounted on elastically deformable arms that comprises the first part 1 and which tend to bring the blades 3 to one another by exerting opposing restoring forces, perpendicular to the axes of the pivots and contained in the plane of the blades. These restoring forces maintain the blades 3 resting in the bottom of the grooves 4.
  • the arms 5 deform elastically during the relative movement of the first 1 and second 2 parts around the two axes of rotation tending to bring the two parts in their equilibrium position shown in Figure 4.
  • This device forms a resonator in which the first part 1 is a pendulum and the arms 5 store energy in elastic form and return it in kinetic form during oscillations.
  • Figures 5, 6 and 7 show other configurations of a pivot and / or a resonator according to the invention.
  • the first 1 and second 2 parts comprise a blade and a groove defining a pivot connection and are connected by one or more resilient return members 7.
  • Said elastic return members 7 have the dual function of keeping the blade 3 resting in the bottom of the groove 4, as explained above, and of storing and returning energy respectively in elastic and kinetic form. For this reason, the restoring force does not pass through the axis of the pivot when the first 1 and second 2 pieces are not in the equilibrium position shown and exerts a return torque tending to bring them back to their position of balanced.
  • the return member may be constituted by one or more magnets working in attraction or repulsion.
  • the low resistance to pivoting a blade pivot according to the invention provides a high quality factor for a resonator comprising such a pivot. It will thus be possible to use a balance that is relatively heavier than the balance wheels of the state of the art, without any insurmountable negative effect on the friction at the pivots.
  • a balance whose serge is made of or with an alloy comprising a dense material, to increase the chronometric qualities of the resonator, without increasing its size.
  • the pendulum, or at least its serge or part of its serge can be made from the following materials or their alloys: gold, platinum, osmium or any other material of very high density (superior at 15, preferably greater than 19).
  • an oscillator incorporating a resonator according to the invention whose power supply can be done, for example, with a "blow-by-blow" type pulse mechanism. wherein the pulse period is a multiple of the oscillation period and thus disturbs the isochronism to a minimum.
  • the balance is formed by the second piece 2 in the mode of Figure 5 and the first piece 1 in those of Figures 6 and 7.
  • a balance as mentioned above comprising a serge made from one of the above materials with a density greater than 15, preferably greater than 19, is very advantageous to use. It can however find to be used with any escapement, including Swiss anchor type.
  • each blade 3 with the corresponding support zone.
  • the blades can be indifferently on the first 1 or on the second 2 piece or even distributed between the two.
  • one of the first 1 or second 2 parts may be integral with an element of the frame of the timepiece.
  • All the components described, namely namely, the first and second parts, the blades, the grooves, the arms and the elastic members can be made of several elements or monolithically.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Clocks (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Toys (AREA)
EP15744502.4A 2014-07-21 2015-07-10 Drehzapfen mit einem blatt Active EP3172626B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01103/14A CH709905A2 (fr) 2014-07-21 2014-07-21 Pivot à lame.
PCT/EP2015/065884 WO2016012281A1 (fr) 2014-07-21 2015-07-10 Pivot à lame

Publications (2)

Publication Number Publication Date
EP3172626A1 true EP3172626A1 (de) 2017-05-31
EP3172626B1 EP3172626B1 (de) 2023-06-14

Family

ID=53762140

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15744502.4A Active EP3172626B1 (de) 2014-07-21 2015-07-10 Drehzapfen mit einem blatt

Country Status (6)

Country Link
US (1) US10254716B2 (de)
EP (1) EP3172626B1 (de)
JP (1) JP6557322B2 (de)
CN (1) CN106537263B (de)
CH (1) CH709905A2 (de)
WO (1) WO2016012281A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3382472A1 (de) 2017-03-30 2018-10-03 Rolex Sa Führungslager einer unruhwelle einer uhr
EP3681595B1 (de) 2017-09-13 2022-03-16 Freymond, Eric Implantierbare motorvorrichtung und implantierbare elektrische generatorvorrichtung, die eine solche motorvorrichtung umfasst
EP3557335A1 (de) 2018-04-17 2019-10-23 Dominique Renaud SA Direkter freier hemmungsmechanismus für uhr
EP3557334A1 (de) 2018-04-17 2019-10-23 Dominique Renaud SA Uhrhemmungsmechanismus mit ruheanker, und uhr, die mit einem solchen hemmungsmechanismus ausgestattet ist
EP3570117A1 (de) 2018-05-16 2019-11-20 Dominique Renaud SA Hemmungsmechanismus für uhr
WO2019219679A1 (fr) 2018-05-16 2019-11-21 Dominique Renaud Sa Mécanisme d'échappement pour pièce d'horlogerie
EP3667432B1 (de) * 2018-12-13 2022-05-11 ETA SA Manufacture Horlogère Suisse Uhrresonator, der mindestens eine flexible führung umfasst
CH716389A2 (fr) 2019-07-04 2021-01-15 Dominique Renaud Sa Mobile d'échappement horloger, mécanisme d'échappement et pièce d'horlogerie.

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9765C (de) 1879-10-30 1880-05-07 O. BLANCHETTI in Paris Verbesserungen an Uhren
DE276247C (de) 1913-06-10 1914-07-08
FR751784A (fr) * 1933-03-03 1933-09-09 Dispositif d'articulation des balanciers des appareils horaires permettant d'assurer sans frottement la suspension guidée de ces organes oscillants
DE7809694U1 (de) * 1978-04-01 1978-07-13 Kienzle Uhrenfabriken Gmbh, 7220 Schwenningen Pendelvorrichtung bei einem Uhrwerk
US4449831A (en) * 1981-07-31 1984-05-22 Rhythm Watch Co., Ltd. Pendulum arrangement for clock movement
JPH0540471Y2 (de) * 1987-09-30 1993-10-14
US4829495A (en) 1987-03-18 1989-05-09 Seikosha Co., Ltd. Pendulum device for clocks
JPH09145856A (ja) * 1995-11-17 1997-06-06 Seiko Kurotsuku Kk 振り子装置
US8475034B2 (en) * 2006-04-12 2013-07-02 The Long Now Foundation Enhanced compound pendulums and systems
DE602006011760D1 (de) * 2006-11-09 2010-03-04 Eta Sa Mft Horlogere Suisse Montageelement, das zwei Reihen von dehnbaren Strukturen umfasst, und dieses Element umfassende Uhr
EP1921517B1 (de) * 2006-11-09 2010-05-12 ETA SA Manufacture Horlogère Suisse Montageelement, das dehnbare Strukturen in Form von Gabeln umfasst, und dieses Element umfassende Uhr
EP2362276B1 (de) * 2010-02-25 2012-10-31 Montres Breguet SA Programmierbares und umprogrammierbares mechanisches Speicherrad für Uhr
CN102971678B (zh) * 2010-04-01 2015-07-22 劳力士有限公司 用于齿轮的制动装置
EP2450756B1 (de) * 2010-11-04 2015-01-07 Nivarox-FAR S.A. Antischwingungsvorrichtung für Uhrenhemmungsmechanismus
US9411314B2 (en) * 2011-09-29 2016-08-09 Rolex Sa Integral assembly of a hairspring and a collet
CH707590B1 (fr) * 2013-02-12 2017-08-15 Eta Sa Mft Horlogère Suisse Roue d'horlogerie antichoc, notamment de centre.
EP2911012B1 (de) * 2014-02-20 2020-07-22 CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement Oszillator einer Uhr
EP2975469B1 (de) * 2014-07-14 2017-07-05 Nivarox-FAR S.A. Biegsamer Führungsdraht für Uhrwerke

Also Published As

Publication number Publication date
CN106537263A (zh) 2017-03-22
CH709905A2 (fr) 2016-01-29
JP6557322B2 (ja) 2019-08-07
US10254716B2 (en) 2019-04-09
WO2016012281A1 (fr) 2016-01-28
CN106537263B (zh) 2019-07-23
US20170205768A1 (en) 2017-07-20
EP3172626B1 (de) 2023-06-14
JP2017521672A (ja) 2017-08-03

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