EP2037335A2 - Ancre pour échappement d'horlogerie - Google Patents

Ancre pour échappement d'horlogerie Download PDF

Info

Publication number: EP2037335A2
Authority: EP; European Patent Office
Prior art keywords: anchor; arms; fork; anchor according; armature
Prior art date: 2007-09-13
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

EP08164108A

Other languages

German (de)

English (en)

Other versions

EP2037335B1 (fr

EP2037335A3 (fr

Inventor

August Enzler

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.)

VON GUNTEN, STEPHANE

Original Assignee

Individual

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.)

2007-09-13

Filing date

2008-09-11

Publication date

2009-03-18

2008-09-11 Application filed by Individual filed Critical Individual

2008-09-11 Priority to EP13187564.3A priority Critical patent/EP2687916B1/fr

2009-03-18 Publication of EP2037335A2 publication Critical patent/EP2037335A2/fr

2012-08-29 Publication of EP2037335A3 publication Critical patent/EP2037335A3/fr

2014-01-08 Application granted granted Critical

2014-01-08 Publication of EP2037335B1 publication Critical patent/EP2037335B1/fr

Status Active legal-status Critical Current

2028-09-11 Anticipated expiration legal-status Critical

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Classifications

- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
- 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
- G04B15/00—Escapements
- G04B15/06—Free escapements
- G04B15/08—Lever escapements

Definitions

the present invention relates to an anchor for a watch escapement with escape wheel of a mechanical watch according to the preamble of claim 1.
the basic features of the function of a mechanical watch are today well known and well documented.
the movements of mechanical watches generally draw their energy from a spring, usually a coil spring, the elevator spring or the so-called Barillet.
This energy is delivered to a gear transmission, which in turn via pointer elements, for example, the information for the display of the hour reproduces, to the last element, the so-called inhibition.
the latter has three functions, namely to count the number of oscillations of the balance, that is, to measure the time, to block the energy of the gear during the additional turn of the balance and to give the balance an impulse to maintain its oscillating motion.
the so-called Swiss lever escapement where each of the pallets held in the anchor alternatively provides a boost from the Escapement wheel gets to pass it on to the balance, which is the most widely used in the watch industry.
the flow of force is subject to friction.
the energy that has been collected in the elevator spring experiences losses in the transmission from the mainspring via the transmission to the last element, the balance.
the elevator spring must be increased in order to obtain a sufficient service life of the clock and the drain reserve.
the vibration frequency or the inertia of the balance could be increased.
the improvement in accuracy achieved in this way would have to be bought in turn with the enlargement of the balance or the mainspring, which is undesirable.
each stage of the gear train has an efficiency of about 90% to 95%.
the tooth engagement and profile of the teeth have been optimized as a result.
lubricants have the disadvantage of deteriorating over time, namely aging, oxidizing, cracking and rancidity.
lubricants are susceptible to the absorption of dust and tend to harden.
Lubricants are therefore hardly used for bearing journals of the anchor.
the anchor as a whole is denoted by A.
the anchor has two anchor arms B, in each of whose ends a pallet C is held.
a fork D In the middle between the two armature arms in the connecting region engages a fork D, which extends virtually perpendicular or at least on an angle bisector of the two armature arms.
the fork D ends in tines E and the pivotal movement of the armature or the fork D is limited by two lateral anchor boundary pins F in the pivoting movement. This pivoting movement takes place about a bearing axis G with bilateral bearing journals H, which rest in bearing stones, not shown here.
the anchor according to the invention is always designated 1. Also, this anchor has like two anchor arms 2 like a conventional anchor. The pallets 3 are held at the end in the two anchor arms 2. These two armature arms 2 are integrally connected to each other and in the connection area, the fork 4 engages the armature. The fork 4 is practically perpendicular to the two armature arms 2, when they are stretched aligned with each other.
the fork 4 lies on the bisector of said angle. Terminally, the fork 4 forks 5 and the fork horn on. This part again corresponds to the conventional style.
the region in which the fork 4 is connected to the two armature arms 2 is defined here as the connection region 6.
two fastening arms 7 engage. These attachment arms 7 extend exactly straight in the simplest embodiment shown here. With respect to the central axis through the fork 4, the two attachment arms 7 extend mirror-symmetrically. Consequently, so forms the fork 4 and the center axis of the Angle bisector with respect to the angle, the two mounting arms 7 include each other.
fasteners 8 Terminal at the two mounting arms 7 are fasteners 8, which are configured in the preferred embodiment here as an annular eyelets. Accordingly, the following is also spoken of eyelets 8, the expert will understand, of course, other fastener forms underneath.
the choice of fasteners as eyelets is therefore preferred because they are both suitable to be connected by means of screws with a corresponding fixed part of the movement, for example, the movement board.
the eyelets 8 are also suitable for a soldered or welded connection as well as for an adhesive connection. For the latter types of connection but simple disc-shaped embodiments of the fasteners would be just as suitable.
the smoothest possible embodiment of the inventive anchor is achieved by making the attachment arms as long as possible and as thin as possible in width.
the height of the attachment arm is of course not free, since this must be sufficiently large so as not to obtain rotational degrees of freedom that are not in the plane of the anchor. If you would also choose the height of the mounting arm also very small, so the mounting arms would behave like threads and would be stiff only on train and pressure but otherwise very flexible in all bending directions. But this is not wanted but the freedom of movement should be limited to a bending movement of the mounting arms 7 within the extension plane in which the anchor is located.
the simplest embodiment of the inventive anchor described so far with two flexible mounting arms 7 still has a relative disadvantage.
This anchor has a so-called parasitic motion. This is the unwanted, albeit small, erroneous movement of the rotation center, so called the virtual axis.
the third embodiment of the subject invention as shown in the FIGS. 5 and 6 is shown, also solves this problem.
the armature should rotate about a given virtual axis without offset movement of the center. This problem can be largely reduced, for example, by allowing the mounting arms 7, as in the FIGS. 5 and 6 represented, designed.
the fastening arms 7 are designed with two parallel elastic sections 70 and 71. These two sections 70 and 71 are hairpin-like.
the two sections are parallel and arranged in opposite directions.
the two elastic partial sections 70, 71 are connected to one another via a thickened connection point 72.
the first elastic section 70 thus extends between the thickened connection point 72 and the connection region 6 of the armature 1 or to a thickened part of the Mounting arms 7 which is referred to here as the connecting part 73.
the second elastic section 71 extends from the thickened connection point 72 to a thickened fastening arm part 74, on which the fastening element or fastening eye 8 is formed at the end.
the elastic spring element 10 lies in the same plane as the fastening arms 7 and the remaining parts of the armature 1 according to the invention.
the fastening arms 7 must be fastened with their fastening element 8 either on the same board of the movement or at least on another fixed part of the movement, which lies in the same plane.
the zugelastician spring element 10 has a much smaller width b in relation to height h.
the zugelastician spring element 10 may in principle have any shape that deviates from a straight line.
the zugelastician spring element 10 could be as simple, arcuate arched arm be designed or as shown here, as in the plane meandering route.
the two fastening arms 7 are arranged mirror-symmetrically with respect to the central longitudinal axis of the fork 4, a different solution is shown here.
the elastic attachment arms 7 are in turn as elongated elements between the connecting portion 6 and the terminal fasteners 8, which in turn are configured here as eyelets, extending.
These two fastening arms 7 are now both arranged on the same side of the fork 4 between these and an armature arm 2.
the zugelastician spring element 10 is now placed so that the connecting line between the center of the elongated hole 12 and the point of attachment of the zugelastischen spring element 10 at the connecting portion 6, the bisecting line between the two mounting arms 7.
the virtual axis of rotation is always at the intersection of the extensions of the two mounting arms 7. While in the examples described above, where the mounting arms 7 are arranged mirror-symmetrically with respect to the fork 4, this virtual axis of rotation can also lie outside the connection area 6, it is in the Embodiment according to the FIGS. 7 and 8 preferably such that the virtual axis of rotation lies in the center of the connecting region 6. In other words, the place of virtual axis of rotation can thus be determined virtually free by the choice of the arrangement of the mounting arms 7.
FIG. 7 is contrary to FIG. 8 also shown the possibility that the pallets 3 also monolithic one piece and thus made of the same material as the anchor 1 in one operation.
a manufacturing method for the production of the inventive anchor in which the boundary edges of the armature are extremely regularly finished with a very low roughness, friction losses are thus reduced.
two methods are suitable for the production.
One method is called a DRIE method.
DRIE Deep Reactive Ion Etching. This procedure was by the company Bosch develops and in this regard, for example, on the documents DE-3927163 or DE-4420962-A directed.
fastening arms 7 can be produced with a very small width.
the attachment arms 7 are made with a width of 15-50 microns.
the geometry of an inventive anchor produced in this way has an extreme accuracy, with deviations that are usually less than one micrometer.
silicon in the form of wafers may be considered as the material of manufacture for this process.
This material is particularly suitable for the production of the anchor.
this material has ideal properties for this application. It has a high mechanical strength and a very low plastic deformability, so that the areas with large thickness in the loading direction have virtually no deformation. This leads to extremely low losses. Material fatigue practically does not occur as long as the applied stresses at the alternating stresses are kept below the elastic breaking point.
silicon has a very low coefficient of friction. The only problem is that the parts etched by the DRIE method have very sharp edges. For the watchmaker who works with the tweezers, it is thus possible for the watchmaker to produce very high pressures locally on the sharp edges. This can lead to the destruction of the anchor.
material is deposited around the edges or material is removed, so that the edges undergo certain curves.
the silicon oxide and the silicon nitride also have tribological advantages in which in turn the coefficient of friction is positively influenced.
silicon is the preferred material for the anchor, it can also be made of quartz, pyrex glass, sapphire or diamond. All these materials can be produced synthetically, are accordingly hard and abrasion resistant. In addition, these materials can be at least partially processed by the DRIE method.
Another preferred manufacturing method is known from the so-called LIGA technology. With regard to the LIGA process, reference is made, for example, to the European patents EP-0183910A or the EP-1431844-A as well as on the U.S. Patent 6458263-B directed. In particular, nickel or nickel phosphorus compounds are used for the LIGA process. Also by means of this method can be an inventive anchor with the required dimensions and manufacture accuracy having the desired physical properties.
the LIGA process is a lithographic-galvanic etching process.

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Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Micromachines (AREA)
Table Equipment (AREA)

EP08164108.6A 2007-09-13 2008-09-11 Ancre pour échappement d'horlogerie Active EP2037335B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP13187564.3A EP2687916B1 (fr)	2007-09-13	2008-09-11	Ancre pour un échappement de montre dans une montre mécanique

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH14292007A CH708113B1 (de)	2007-09-13	2007-09-13	Anker für eine Uhrenhemmung.

Related Child Applications (2)

Application Number	Title	Priority Date	Filing Date
EP13187564.3A Division EP2687916B1 (fr)	2007-09-13	2008-09-11	Ancre pour un échappement de montre dans une montre mécanique
EP13187564.3 Division-Into		2013-10-07

Publications (3)

Publication Number	Publication Date
EP2037335A2 true EP2037335A2 (fr)	2009-03-18
EP2037335A3 EP2037335A3 (fr)	2012-08-29
EP2037335B1 EP2037335B1 (fr)	2014-01-08

Family

ID=39768809

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP08164108.6A Active EP2037335B1 (fr)	2007-09-13	2008-09-11	Ancre pour échappement d'horlogerie
EP13187564.3A Active EP2687916B1 (fr)	2007-09-13	2008-09-11	Ancre pour un échappement de montre dans une montre mécanique

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
EP13187564.3A Active EP2687916B1 (fr)	2007-09-13	2008-09-11	Ancre pour un échappement de montre dans une montre mécanique

Country Status (2)

Country	Link
EP (2)	EP2037335B1 (fr)
CH (1)	CH708113B1 (fr)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2011120180A1 (fr)	2010-04-01	2011-10-06	Rolex S.A.	Dispositif de blocage pour roue dentée
WO2012010408A1 (fr) *	2010-07-19	2012-01-26	Nivarox-Far S.A.	Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
EP2431823A1 (fr) *	2010-09-16	2012-03-21	Blancpain S.A.	Echappement blancpain à ancre amélioré pour mouvement d'horlogerie
EP2466395A1 (fr) *	2010-12-14	2012-06-20	Chopard Technologies SA	Ancre et échappement muni d'une telle ancre
WO2012079976A1 (fr) *	2010-12-14	2012-06-21	Chopard Technologies Sa	Ancre et échappement muni d'une telle ancre
EP2645189A1 (fr) *	2012-03-29	2013-10-02	Nivarox-FAR S.A.	Mécanisme d'échappement flexible
WO2013144237A1 (fr)	2012-03-29	2013-10-03	Nivarox-Far S.A.	Mecanisme d'echappement flexible sans ancre
WO2013144238A1 (fr)	2012-03-29	2013-10-03	Nivarox-Far S.A.	Mécanisme d'échappement flexible à balancier sans plateau
WO2013144236A1 (fr)	2012-03-29	2013-10-03	Nivarox-Far S.A.	Mécanisme d'échappement flexible à cadre mobile
EP2730980A1 (fr) *	2012-11-09	2014-05-14	Nivarox-FAR S.A.	Mécanisme horloger de limitation ou transmission
EP2887151A2 (fr)	2013-12-12	2015-06-24	Richemont International S.A.	Elément oscillant pour mouvement horloger
EP2455821B1 (fr)	2010-11-18	2015-10-21	Nivarox-FAR S.A.	Mobile de transmission d'énergie
EP2998800A2 (fr)	2014-09-16	2016-03-23	Patek Philippe SA Genève	Composant horloger à pivot flexible
EP3037894A1 (fr)	2014-12-22	2016-06-29	Manufacture et fabrique de montres et chronomètres Ulysse Nardin Le Locle SA	Mécanisme et procédé de réglage d une vitesse dans un mouvement horloger
EP3037893A1 (fr)	2014-12-22	2016-06-29	Patek Philippe SA Genève	Composant micromécanique ou horloger à guidage flexible
EP3059641A1 (fr) *	2015-02-20	2016-08-24	Nivarox-FAR S.A.	Oscillateur avec un echappement a detente
EP3076244A1 (fr)	2015-03-11	2016-10-05	CSEM Centre Suisse d'Electronique et de Microtechnique SA - Recherche et Développement	Dispositif d'amortissement de chocs pour pieces rotatives
WO2017055986A1 (fr)	2015-09-29	2017-04-06	Patek Philippe Sa Geneve	Mouvement horloger comprenant un système de guidage flexible
WO2017055987A1 (fr)	2015-09-29	2017-04-06	Patek Philippe Sa Geneve	Composant mécanique à guidage flexible, notamment pour mouvement horloger
EP3200029A1 (fr) *	2016-01-29	2017-08-02	ETA SA Manufacture Horlogère Suisse	Mecanisme resonateur d'horlogerie
WO2018002778A1 (fr) *	2016-06-29	2018-01-04	Patek Philippe Sa Geneve	Mouvement d'horlogerie mecanique
CH713288A1 (fr) *	2016-12-23	2018-06-29	Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie	Composant monolithique flexible pour pièce d'horlogerie.
US10234823B2 (en) *	2014-05-20	2019-03-19	Sociétéanonyme de la Manufacture d'horlogerie Audemars Piguet & Cie	Timepiece pallet fork for mechanical oscillator and timepiece time-delay release mechanism
WO2021053501A1 (fr)	2019-09-16	2021-03-25	Richemont International Sa	Procédé de fabrication d'une pluralité de résonateurs sur une plaquette
NL2023822B1 (en) *	2019-09-12	2021-05-17	Flexous Mech Ip B V	Chronograph watch

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH713143A1 (fr)	2016-11-17	2018-05-31	Richemont Int Sa	Échappement pour pièce d'horlogerie.
CH713144A1 (fr)	2016-11-17	2018-05-31	Richemont Int Sa	Échappement pour pièce d'horlogerie.

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CH342897A (fr)	1956-11-08	1959-11-30	Huguenin Pierre Louis	Dispositif d'échappement à ancre pour mouvement d'horlogerie
CH510285A (fr)	1969-10-22	1971-03-31	Far Fab Assortiments Reunies	Echappement à ancre pour pièce d'horlogerie
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EP1770452A1 (fr) *	2005-09-30	2007-04-04	Peter Baumberger	Echappement à detente pour pièce d'horlogerie

2007
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CH342897A (fr)	1956-11-08	1959-11-30	Huguenin Pierre Louis	Dispositif d'échappement à ancre pour mouvement d'horlogerie
CH510285A (fr)	1969-10-22	1971-03-31	Far Fab Assortiments Reunies	Echappement à ancre pour pièce d'horlogerie
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CN102971678A (zh) *	2010-04-01	2013-03-13	劳力士有限公司	用于齿轮的制动装置
EP2818941A1 (fr)	2010-04-01	2014-12-31	Rolex Sa	Dispositif de blocage pour roue dentée
CN102971678B (zh) *	2010-04-01	2015-07-22	劳力士有限公司	用于齿轮的制动装置
WO2011120180A1 (fr)	2010-04-01	2011-10-06	Rolex S.A.	Dispositif de blocage pour roue dentée
US8882339B2 (en)	2010-04-01	2014-11-11	Rolex S.A.	Immobilizing device for a toothed wheel
JP2013524173A (ja) *	2010-04-01	2013-06-17	ロレックス・ソシエテ・アノニム	歯車用固定装置
EP2894520A3 (fr) *	2010-07-19	2016-06-22	Nivarox-FAR S.A.	Mécanisme oscillant à pivot élastique et mobile de transmission d'énergie
US20130176829A1 (en) *	2010-07-19	2013-07-11	Nivarox-Far S.A.	Oscillating mechanism with an elastic pivot and mobile element for transmitting energy
JP2013531257A (ja) *	2010-07-19	2013-08-01	ニヴァロックス−ファーソシエテアノニム	弾性ピボット及びエネルギ伝達のための可動要素を有する発振機構
US9201398B2 (en)	2010-07-19	2015-12-01	Nivarox-Far S.A.	Oscillating mechanism with an elastic pivot and mobile element for transmitting energy
WO2012010408A1 (fr) *	2010-07-19	2012-01-26	Nivarox-Far S.A.	Mecanisme oscillant a pivot elastique et mobile de transmission d'energie
WO2012034810A3 (fr) *	2010-09-16	2012-06-14	Blancpain Sa	Echappement blancpain à ancre amélioré pour mouvement d'horlogerie
WO2012034810A2 (fr)	2010-09-16	2012-03-22	Blancpain Sa	Echappement blancpain à ancre amélioré pour mouvement d'horlogerie
EP2431823A1 (fr) *	2010-09-16	2012-03-21	Blancpain S.A.	Echappement blancpain à ancre amélioré pour mouvement d'horlogerie
EP2455821B1 (fr)	2010-11-18	2015-10-21	Nivarox-FAR S.A.	Mobile de transmission d'énergie
WO2012079976A1 (fr) *	2010-12-14	2012-06-21	Chopard Technologies Sa	Ancre et échappement muni d'une telle ancre
EP2466395A1 (fr) *	2010-12-14	2012-06-20	Chopard Technologies SA	Ancre et échappement muni d'une telle ancre
CN103261975A (zh) *	2010-12-14	2013-08-21	萧邦科技公司	杠杆和具有此种杠杆的擒纵机构
WO2013144236A1 (fr)	2012-03-29	2013-10-03	Nivarox-Far S.A.	Mécanisme d'échappement flexible à cadre mobile
WO2013144238A1 (fr)	2012-03-29	2013-10-03	Nivarox-Far S.A.	Mécanisme d'échappement flexible à balancier sans plateau
CN104204966B (zh) *	2012-03-29	2017-02-22	尼瓦洛克斯-法尔股份有限公司	具有可移动框架的柔性擒纵机构
KR20140135810A (ko) *	2012-03-29	2014-11-26	니바록스-파 에스.에이.	가요성 레버-프리 이스케이프먼트 메카니즘
RU2607339C9 (ru) *	2012-03-29	2017-02-22	Ниварокс-Фар С.А.	Механизм анкерный гибкий с подвижной рамой
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Also Published As

Publication number	Publication date
EP2037335B1 (fr)	2014-01-08
EP2687916B1 (fr)	2016-06-08
EP2687916A1 (fr)	2014-01-22
EP2037335A3 (fr)	2012-08-29
CH708113B1 (de)	2014-12-15

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