EP4053643A1 - Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst - Google Patents

Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst Download PDF

Info

Publication number: EP4053643A1
Authority: EP; European Patent Office
Prior art keywords: escapement; wheel; balance; natural; alternation
Prior art date: 2021-03-02
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

EP21204613.0A

Other languages

English (en)

French (fr)

Other versions

EP4053643B1 (de

Inventor

Alain Zaugg

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.)

Montres Breguet SA

Original Assignee

Montres Breguet 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.)

2021-03-02

Filing date

2021-10-26

Publication date

2022-09-07

2021-05-27 Priority claimed from EP21176140.8A external-priority patent/EP4053642A1/de

2021-10-26 Application filed by Montres Breguet SA filed Critical Montres Breguet SA

2022-09-07 Publication of EP4053643A1 publication Critical patent/EP4053643A1/de

2023-11-29 Application granted granted Critical

2023-11-29 Publication of EP4053643B1 publication Critical patent/EP4053643B1/de

Status Active legal-status Critical Current

2041-10-26 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
- G04B15/06—Free escapements
- G04B15/08—Lever escapements
- 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
- G04B15/12—Adjusting; Restricting the amplitude of the lever or the like
- 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

Definitions

the present invention relates to a natural escapement for a clock movement also known by its name tangential impulse escapement.
Breguet's natural escapement has the particular advantage of being a free escapement insofar as the balance is only disturbed by the operation of the escapement over a small fraction of its oscillation. Breguet's natural escapement also has the advantage of giving each alternation a direct and tangential impulse to the balance wheel. In other words, the energy is transferred directly from the escape wheel to the balance wheel, without passing through an anchor. Furthermore, the transmission of energy takes place only tangentially, so that the friction generated by the operation of this escapement is limited.
the balance wheel of a natural escapement does not present any lost shots; it receives a similar impulse at each alternation, in a symmetrical and more uniform way, so that the losses of mechanical energy by lost blow are suppressed. All these qualities thus make the natural exhaust one of the potentially most efficient exhausts.
the object of the present invention is to remedy the problems mentioned above as well as still others by providing a natural escapement for a clock movement which is in particular less bulky.
the present invention relates to a natural escapement for a watch movement carrying out a succession of operating cycles each consisting of a first and a second alternation of a balance which comprises a balance wheel on an axis of which a balance plate is fitted, this natural escapement comprising a first escapement wheel arranged to be driven by a second wheel set, this first escapement wheel in turn driving a second escapement wheel arranged in the same plane as the first escapement wheel, the first and second escapement wheels forming a kinematic chain following which is arranged an anchor capable of pivoting around an anchor rod situated outside an angle less than 180° and delimited by two straight lines which pass through the axis of the balance wheel and through a pivot axis of the first escapement wheel for one, and through the axis of the balance wheel and through a pivot axis nt of the second escape-wheel for the other.
the invention also relates to a timepiece movement comprising an escapement of the type described above.
the present invention provides a natural escapement in which the first and second escapement wheels form a kinematic chain following which the lever is placed.
This solution which is much less bulky and therefore easier to house in a watch movement than when the lever is placed between the two escapement wheels, also offers easier access to watchmakers and allows them to adjust the depth of penetration of the teeth of the second escapement wheel with the pallets of entry and exit of the anchor in a more convenient way.
the first and second escape wheels are one-piece and each comprise a single level. In other words, these first and second escape wheels are not active according to two distinct stepped levels. They are therefore less bulky and easier to machine.
the necessary indexing of the teeth serving to transmit the driving impulses to the balance plate when two superposed escape wheels are used is avoided.
the indexing of the single toothing of the first and second escapement wheels which ensures both the meshing of these two drive wheels with each other and the transmission of the driving impulses to the balance plate stems from the very shape of this toothing.
the present invention proceeds from the general inventive idea which consists in arranging the lever of a natural escapement, also known by its name tangential impulse escapement, not between the first and second escapement wheels, but in the extension of the kinematic chain formed by these first and second escape wheels.
tangential impulse escapement also known by its name tangential impulse escapement
Such an arrangement much less cumbersome than when the lever of the natural escapement is arranged between the escapement wheels, also offers the watchmaker easier access to the entry and exit pallets of the lever and therefore greater convenience in measuring and adjusting the depth of penetration of these pallets into the teeth of the second escape wheel.
the first and second escape wheels are only active along a single level, they are thinner and therefore less bulky and easier to machine.
the indexing of their impulse teeth stems from the actual shape of their teeth and not from a tedious assembly of two superimposed escape wheels.
the natural escapement according to the invention is arranged to be driven by a second mobile 2 which meshes with a pinion 4 fixedly mounted on an axis 6 of a first escapement wheel 8.
This first escapement wheel 8 in turn meshes via a toothing 9 with a second escapement wheel 10 which pivots around an axis 11.
the natural escapement 1 also comprises a balance wheel 12 which comprises a balance wheel 14 on an axis 16 of which is fitted a balance plate 18.
This balance plate 18 carries a balance peg 20 as well as a first and a second pulse pallet 22 and 24 whose respective roles will be described below.
the natural escapement 1 finally comprises an anchor 26 pivoted around an anchor rod 28 and which carries a pallet of output 30 and an input pallet 32. Thanks to these output 30 and input 32 pallets which penetrate into a toothing 34 of the second escape wheel 10, the anchor 26 is able to block and release alternately this second escape wheel 10.
the anchor 26 also comprises a fork 36 formed of a first and a second horn 38a and 38b and which carries a dart 40. This dart 40 cooperates with the balance plate 18 and has the function of preventing accidental movements of the fork 36 outside the periods during which the balance plate 18 is in its rest position.
the anchor 26 is placed after the second escapement wheel 10, at the output of the kinematic chain formed by the first and second escapement wheels 8 and 10. More precisely, the pivot point of the anchor 26, materialized by the anchor rod 28, is outside the angle ⁇ of less than 180° and delimited by two straight lines which pass through the axis 16 of the balance wheel 14 and through the axis 6 of the first escapement wheel 8 for one, and by the axis 16 of the balance wheel 14 and by the axis 11 of the second escapement wheel 10 for the other.
the natural escapement 1 according to the invention is therefore less bulky than the natural escapements of the prior art in which the anchor is usually placed between and above the first and second escapement wheels.
the natural escapement 1 according to the invention is therefore simpler to house in the clock movement whose operation it regulates.
the arrangement of the lever 26 at the end of the kinematic chain formed by the first and second escapement wheels 8 and 10 makes the interventions of the watchmaker less difficult, in particular as regards measurement and adjustment of the depth of penetration of the exit 30 and entry 32 pallets into the toothing 34 of the second escapement wheel 10.
the natural escapement 1 is completed by a first and a second stop 42a and 42b which limit the movement of the anchor 26 in pivoting.
the second mobile 2 which supplies the natural escapement 1 with the energy necessary for its operation rotates counterclockwise.
the second mobile 2 therefore tends to rotate the pinion 4 and the first escapement wheel 8 on the axis 6 of which the pinion 4 is fixed in the clockwise direction, and the second escapement wheel 10 in the direction counterclockwise.
An operating cycle of the natural escapement 1 comprises two alternations during which the balance plate 18 goes successively from a first extreme position to a second extreme position passing through a median rest position, then from its second extreme position to its first extreme position by going back a second time through its middle rest position.
the second escapement wheel 10 rests on the outlet pallet 30 and the natural escapement 1 is blocked by pressing the lever 26 against the second stop 42b.
the pulling angle formed by pressing the tip of the tooth of the second escapement wheel 10 on the output pallet 30 opposes a resistance to the release of the anchor 26 by tending to make this anchor 26 pivot in counterclockwise against the second stop 42b.
the first escapement wheel 8 also gives a driving impulse to the balance plate 18 via the one of its teeth 44 called the impulse tooth which drives the second impulse pallet 24 (see Fig. 2C ).
This driving impulse is called direct and tangential impulse because it is given directly by the first escapement wheel 8 to the balance plate 18 and the path of the impulse tooth 44 catches up with that of the second impulse pallet 24 of the plate. of pendulum 18 tangentially, which allows an almost punctual contact and without friction.
the balance plate 18 thus moves to its second extreme position in which it is completely moved away from its rest position, which marks the end of the first alternation of operation of the natural escapement 1 (see figure 2E ).
the balance plate 18, returned by the spiral spring of the balance begins to turn clockwise until it comes to abut by its pendulum pin 20 against the first horn 38a of the fork 36 and causes the lever 26 to pivot counterclockwise (see figure 2F ).
the anti-clockwise pivoting of the anchor 26 has the effect of releasing the second escapement wheel 10 from its grip with the input pallet 32, which allows the second mobile 2 to drive, via the first wheel escape wheel 8, the second escape wheel 10 counterclockwise (see figure 2G ).
the second escapement wheel 10 also gives a driving impulse known as direct and tangential to the balance plate 18 via one of its teeth 46 called the impulse tooth which drives the first impulse pallet 22 (see figure 2H ).
the impulse is so named because it is given directly by the second escapement wheel 10 to the balance plate 18 and the path of the impulse tooth 46 catches up with that of the second impulse pallet 24 of the balance plate 18 tangentially, which allows an almost punctual and frictionless contact.
the balance plate 18 thus returns to its first extreme position, which marks the end of an operating cycle of the natural escapement 1 (see figure 2J ).
first and second stops 42a and 42b can also be ensured by a form specific for output and input vanes 30 and 32 and impulse teeth 44 and 46 as illustrated in the picture 3 .
the balance pin 20 is located outside an acute angle ⁇ delimited by two straight lines which pass through the axis 16 of the balance wheel 14 and through the first impulse pallet 22, respectively by the second pallet impulse 24.

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Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Transmission Devices (AREA)
Micromachines (AREA)

EP21204613.0A 2021-03-02 2021-10-26 Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst Active EP4053643B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
EP21160254		2021-03-02
EP21176140.8A EP4053642A1 (de)	2021-03-02	2021-05-27	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst

Publications (2)

Publication Number	Publication Date
EP4053643A1 true EP4053643A1 (de)	2022-09-07
EP4053643B1 EP4053643B1 (de)	2023-11-29

Family

ID=78463404

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP21204613.0A Active EP4053643B1 (de)	2021-03-02	2021-10-26	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst

Country Status (4)

Country	Link
US (1)	US12124217B2 (de)
EP (1)	EP4053643B1 (de)
JP (1)	JP7313494B2 (de)
CN (1)	CN114995085B (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2458503A1 (de) *	1974-12-11	1976-06-16	Graesslin Feinwerktech	Hemmung, insbesondere fuer zeitlaufwerke
EP1221637A1 (de) *	2001-01-09	2002-07-10	Ulysse Nardin S.A.	Hemmung für Zeitmesser
CH709328A2 (fr) *	2014-03-06	2015-09-15	Seiko Instr Inc	Echappement, mouvement de pièce d'horlogerie et pièce d'horlogerie.
CH712631A1 (fr) *	2016-06-27	2017-12-29	Mft Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A	Echappement pour mouvement d'horlogerie.
CH714200A1 (fr) *	2017-09-29	2019-03-29	Louis Vuitton Malletier Sa	Dispositif d'échappement pour mouvement de montre mécanique comportant un échappement avec deux mobiles d'échappement.

Family Cites Families (7)

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Publication number	Priority date	Publication date	Assignee	Title
DE602007004446D1 (de) *	2007-04-18	2010-03-11	Eta Sa Mft Horlogere Suisse	Direktimpulshemmung für Uhren
EP2450755B1 (de) *	2010-11-04	2015-01-21	Nivarox-FAR S.A.	Synchronhemmung für Uhrwerk
EP2487546B1 (de) *	2011-02-11	2021-06-30	Montres Journe S.A.	Zweiachsige Hochleistungshemmung
JP6618306B2 (ja) *	2015-09-16	2019-12-11	セイコーインスツル株式会社	アンクル、調速脱進機、トゥールビヨン、ムーブメント及び時計
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
CH715023A1 (fr) *	2018-05-25	2019-11-29	Sa De La Manufacture Dhorlogerie Audemars Piguet & Cie	Échappement à détente auto-démarrant et sécurisé pour pièce d'horlogerie

2021
- 2021-10-26 EP EP21204613.0A patent/EP4053643B1/de active Active
2022
- 2022-01-03 US US17/567,459 patent/US12124217B2/en active Active
- 2022-01-20 JP JP2022006889A patent/JP7313494B2/ja active Active
- 2022-02-09 CN CN202210133780.1A patent/CN114995085B/zh active Active

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2458503A1 (de) *	1974-12-11	1976-06-16	Graesslin Feinwerktech	Hemmung, insbesondere fuer zeitlaufwerke
EP1221637A1 (de) *	2001-01-09	2002-07-10	Ulysse Nardin S.A.	Hemmung für Zeitmesser
CH709328A2 (fr) *	2014-03-06	2015-09-15	Seiko Instr Inc	Echappement, mouvement de pièce d'horlogerie et pièce d'horlogerie.
CH712631A1 (fr) *	2016-06-27	2017-12-29	Mft Et Fabrique De Montres Et Chronomètres Ulysse Nardin Le Locle S A	Echappement pour mouvement d'horlogerie.
CH714200A1 (fr) *	2017-09-29	2019-03-29	Louis Vuitton Malletier Sa	Dispositif d'échappement pour mouvement de montre mécanique comportant un échappement avec deux mobiles d'échappement.

Also Published As

Publication number	Publication date
JP7313494B2 (ja)	2023-07-24
US12124217B2 (en)	2024-10-22
JP2022134098A (ja)	2022-09-14
CN114995085A (zh)	2022-09-02
CN114995085B (zh)	2024-02-09
US20220283542A1 (en)	2022-09-08
EP4053643B1 (de)	2023-11-29

Publication	Publication Date	Title
EP2487546B1 (de)	2021-06-30	Zweiachsige Hochleistungshemmung
EP1983389B1 (de)	2009-11-25	Hemmung, die zwei Hemmungsräder umfasst
CH709328B1 (fr)	2020-03-31	Echappement, mouvement de pièce d'horlogerie et pièce d'horlogerie.
EP4198641B1 (de)	2024-10-09	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst
EP0218926B1 (de)	1988-11-17	Vorrichtung zur schrittweisen Vorwärtsbewegung eines zeitanzeigenden Organs in einem Uhrwerk
CH711594B1 (fr)	2021-07-15	Ancre, échappement régulateur, tourbillon, mouvement, et pièce d'horlogerie.
CH703361A2 (fr)	2011-12-30	Mouvement horloger presentant des fonctions de chronographe et de compte-a-rebours.
CH707181A2 (fr)	2014-05-15	Dispositif horloger, notamment un dispositif d'affichage sautant.
EP3502795B1 (de)	2020-09-23	Repetitionsmechanismus mit gespannter kette
EP4053643B1 (de)	2023-11-29	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst
EP4053644B1 (de)	2023-09-27	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst
EP4053642A1 (de)	2022-09-07	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst
CH717787B1 (fr)	2022-03-15	Echappement naturel pour mouvement d'horlogerie et mouvement d'horlogerie comprenant un tel échappement.
CH713530B1 (fr)	2022-04-14	Echappement, mouvement de pièce d'horlogerie et pièce d'horlogerie.
EP4105731B1 (de)	2024-01-03	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst
CH699794B1 (fr)	2013-08-15	Dispositif d'aide au maintien en position d'un anneau indicateur de quantième pour pièce d'horlogerie.
CH707182B1 (fr)	2016-12-30	Dispositif horloger.
CH718400A2 (fr)	2022-09-15	Echappement naturel pour mouvement d'horlogerie et mouvement d'horlogerie comprenant un tel échappement.
CH717785B1 (fr)	2022-03-15	Echappement naturel pour mouvement d'horlogerie et mouvement d'horlogerie comprenant un tel échappement.
CH718266B1 (fr)	2022-07-29	Échappement naturel pour mouvement d'horlogerie et mouvement d'horlogerie comprenant un tel échappement.
EP1475681A1 (de)	2004-11-10	Chronographuhr mit sofortiger Anzeige von Sekunden-Bruchteilen
CH715023A1 (fr)	2019-11-29	Échappement à détente auto-démarrant et sécurisé pour pièce d'horlogerie
EP4194959A1 (de)	2023-06-14	Natürliche hemmung für uhrwerk und uhrwerk, das eine solche uhrhemmung umfasst
EP2249215B1 (de)	2017-07-19	Chronographuhr mit sofortiger anzeige von sekunden-bruchteilen
CH717788B1 (fr)	2023-01-31	Echappement naturel pour mouvement d'horlogerie et mouvement d'horlogerie comprenant un tel échappement.

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