EP1914605A1 - Ankerhemmung - Google Patents

Ankerhemmung Download PDF

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Publication number
EP1914605A1
EP1914605A1 EP06021911A EP06021911A EP1914605A1 EP 1914605 A1 EP1914605 A1 EP 1914605A1 EP 06021911 A EP06021911 A EP 06021911A EP 06021911 A EP06021911 A EP 06021911A EP 1914605 A1 EP1914605 A1 EP 1914605A1
Authority
EP
European Patent Office
Prior art keywords
pallet
exhaust according
teeth
anchor
pallets
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.)
Withdrawn
Application number
EP06021911A
Other languages
English (en)
French (fr)
Inventor
Anthony Krüttli
Frédéric Maier
Jean-Pierre Musy
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.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP06021911A priority Critical patent/EP1914605A1/de
Publication of EP1914605A1 publication Critical patent/EP1914605A1/de
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates to the field of watchmaking and relates more particularly to an escapement anchor.
  • the anchor In conventional anchor escapements, the anchor has entry and exit pallets which cooperate with a toothed wheel called escape wheel, driven by the barrel.
  • the entry and exit pallets generally each have a pulse face through which the escape wheel transmits energy to the anchor.
  • the design of the pallets and their impulse face namely their position, their shape and their dimensions, plays an essential role in the quality of operation of the exhaust, in particular in its efficiency.
  • a disadvantage of these exhausts is that the entry and exit pallets are interdependent in their design. For example, if one of the pallets is designed first, the position, shape and dimensions of the other pallet will be imposed by those of the first pallet. It follows that the exhaust performance can be optimal at the entrance or exit, but not both at once.
  • the present invention aims to provide an anchor escapement that allows greater freedom in the design of the pallets of the anchor to facilitate, in particular, obtaining a better performance.
  • an escapement comprising an anchor cooperating with a toothed mobile, the anchor comprising first and second pallets, each of said pallets comprising a pulse face, characterized in that the first and second pallets are located in two different planes and cooperate with respective first and second teeth of the toothed mobile.
  • an escapement according to the invention comprises an anchor 1 and a toothed mobile 2.
  • the anchor 1 consists of a lower part 3 and an upper part 4 extending in two different parallel planes. These two anchor parts 3, 4 are integral and mounted on a common axis 5.
  • the lower part 3 has at its two ends, respectively, a stinger 6 and a first pallet 7.
  • the upper part 4 has at its two ends, respectively , a fork 8 and a second pallet 9.
  • the fork 8 cooperates with an anchor 10 carried by a large plate 11 mounted on the axis of a rocker, to give an impulse to the balance at each alternation of the latter
  • the stinger 6 cooperates with a small plate 12 secured to the large plate 11 to prevent the reversal of the anchor.
  • the vanes 7, 9 are respectively located at the end of two arms 3a, 4a starting from the axis 5 and away from this axis in opposite directions. In a view from above, the vanes 7, 9 are therefore spaced laterally from one another, and are more precisely located on either side of a plane containing the imaginary axes of rotation of the balance, of the anchor and the escape wheel.
  • the pallets 7, 9 are respectively the first and second pallets seen by a given point of the periphery of the mobile 2 when the latter rotates in its normal direction of rotation (clockwise) from a position where said given point is away from the anchor 1.
  • Each pallet 7, 9 comprises an impulse face 14, a rest face 15, a cuff 16, a rest spout 17 and an impulse spout 18.
  • the pallet 7 could be carried by the upper anchor part 4 which carries the fork 8 and the pallet 9 could be carried by the lower anchor part 3 which carries the stinger 6.
  • the anchor 1 could be monobloc, provided that the pallets 7, 9 are in two different planes.
  • the toothed mobile 2 consists of two superimposed wheels 20, 21 located respectively in the same planes as the vanes 7, 9. These wheels 20, 21 are integral with each other and mounted on a common axis 22. Each wheel 20, 21 has on its periphery or slice a respective toothing 23, 24. The teeth 23, 24 are angularly offset relative to each other, by an angular offset of the wheels 20, 21, and cooperate respectively with the pallets 7, 9. Each tooth 23, 24 of the wheels 20, 21 comprises a pulse face 25, a rest face 26, a rest pin 27 and a heel 28.
  • the toothed wheel 2 could consist of a single wheel bearing two teeth superimposed.
  • the operation of the exhaust comprises several successive phases, namely, for each pallet 7, 9, a rest phase where the rest spoiler 17 of the pallet cooperates with the rest face 26 of a tooth 23, 24, a phase of release of the mobile 2 and a pulse phase.
  • the escapement according to the invention is preferably shared impulse, that is to say that the impulse phase comprises a first part where the mouthpiece 27 of the tooth 23, 24 slides on the impulse face 14 of the pallet 7, 9 and a second part where the pulse nozzle 18 of the pallet 7, 9 slides on the impulse face 25 of a tooth 23, 24.
  • the exhaust according to the invention functions as a Swiss lever escapement.
  • the exhaust according to the invention could be totally impulse on the anchor, that is to say that the teeth 23, 24 could be pointed and therefore not have a pulse face.
  • the escapement according to the invention would function as an English anchor escapement.
  • the position, the shape and the dimensions of each of the pallets 7, 9 can be chosen independently of the other pallet, in particular to optimize the efficiency exhaust at the two pallets at a time.
  • the teeth 23, 24 are also independent of each other as to their position, shape and dimensions.
  • the safety devices (fall, recoil, etc.) of the exhaust are obtained simply by indexing (angular offset) of the teeth 23, 24, that is to say the wheels 20, 21.
  • the wheels 20, 21 may have a small number of teeth, ten in the illustrated example, for the same diameter as a conventional escape wheel, and therefore a large angular space between two consecutive teeth, which allows the pallets 7, 9 to have a large width, in other words a long impulse face 14. The efficiency of the exhaust is thus improved, without increasing the radial space requirement .
  • the above-mentioned conditions relating to the angular lengths Ics, Ls, ds and ds increase the angle of lift of the anchor 1 which is advantageously greater than 15 °, preferably greater than 16.5 °.
  • the plate pin 10 is further from the axis of the balance than in conventional exhausts.
  • the path traveled by the pin 10 will be greater for the same angle of displacement of the pendulum. This allows the balance to maintain a conventional lifting angle, of the order of 48 to 54 °.
  • the escapement according to the invention works in the same way as if it had a single wheel having a number of teeth equal to the sum of the numbers of teeth of the wheels 20, 21, namely 20 teeth in the illustrated example.
  • the fact that each of the wheels 20, 21 has few teeth therefore does not force the escape pinion, designated by the reference 30, pinion which is secured to the wheels 20, 21 and cooperates with the seconds wheel, to have a small number of teeth.
  • This pinion 30 may instead have a usual number of teeth, typically greater than six, which allows it to be manufactured under standard conditions.
  • the escapement according to the invention is simple to produce.
  • the wheels 20, 21 and their teeth 23, 24 can be of shape and conventional manufacturing.
  • the wheels 20, 21 may have the same diameter, in particular the same total outer diameter defined by the apex of the teeth 23, 24, and even be identical as in the example illustrated.
  • teeth 23, 24 are identical because this allows the available torque to the first pallet 7 is the same as that available to the second pallet 9, which facilitates the achievement of optimum performance at level of both palettes at a time.
  • the anchor 1 as well as the exhaust as a whole may further retain a conventional overall shape and dimensions in top view.
  • the total height of the exhaust can also be the same as that of a conventional exhaust including a dart and a small plate.
  • the anchor 1 and the mobile 2 may be made of a light material such as silicon, silicon carbide, quartz or glass, which will give them a low inertia.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exhaust Gas After Treatment (AREA)
EP06021911A 2006-10-19 2006-10-19 Ankerhemmung Withdrawn EP1914605A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06021911A EP1914605A1 (de) 2006-10-19 2006-10-19 Ankerhemmung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06021911A EP1914605A1 (de) 2006-10-19 2006-10-19 Ankerhemmung

Publications (1)

Publication Number Publication Date
EP1914605A1 true EP1914605A1 (de) 2008-04-23

Family

ID=38180385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06021911A Withdrawn EP1914605A1 (de) 2006-10-19 2006-10-19 Ankerhemmung

Country Status (1)

Country Link
EP (1) EP1914605A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011121432A1 (fr) 2010-04-01 2011-10-06 Patek Philippe Sa Geneve Echappement d'horlogerie a protection contre les chocs
EP2400352A1 (de) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Hemmungssystem einer Uhr
WO2014146842A1 (fr) * 2013-03-22 2014-09-25 Omega Sa Ancre d'échappement coaxial monobloc
JP2015025721A (ja) * 2013-07-25 2015-02-05 セイコーインスツル株式会社 時計用歯車、脱進機構、時計用ムーブメントおよび機械式時計
JP2015025719A (ja) * 2013-07-25 2015-02-05 セイコーインスツル株式会社 脱進機、時計用ムーブメントおよび時計
CN109254517A (zh) * 2017-07-12 2019-01-22 天津海鸥表业集团有限公司 一种手表的擒纵调速模块及应用

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH93617A (fr) * 1919-09-20 1922-03-16 Tavannes Watch Co Sa Echappement à ancre.
US2133216A (en) * 1936-03-07 1938-10-11 Edward E Taliaferro Escapement
DE2520758A1 (de) * 1975-05-09 1976-11-18 Paul Merkle Steigradhemmung fuer uhren
EP1045297A1 (de) * 1999-04-12 2000-10-18 Omega SA Koaxiale Ankerhemmung
EP1517197A1 (de) * 2003-09-22 2005-03-23 Paul Gerber Hemmung für Uhr

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH93617A (fr) * 1919-09-20 1922-03-16 Tavannes Watch Co Sa Echappement à ancre.
US2133216A (en) * 1936-03-07 1938-10-11 Edward E Taliaferro Escapement
DE2520758A1 (de) * 1975-05-09 1976-11-18 Paul Merkle Steigradhemmung fuer uhren
EP1045297A1 (de) * 1999-04-12 2000-10-18 Omega SA Koaxiale Ankerhemmung
EP1517197A1 (de) * 2003-09-22 2005-03-23 Paul Gerber Hemmung für Uhr

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011121432A1 (fr) 2010-04-01 2011-10-06 Patek Philippe Sa Geneve Echappement d'horlogerie a protection contre les chocs
US8757869B2 (en) 2010-04-01 2014-06-24 Patek Philippe Sa Geneve Impact-proof timepiece escapement
EP2400352A1 (de) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Hemmungssystem einer Uhr
CN103026303A (zh) * 2010-06-22 2013-04-03 斯沃奇集团研究和开发有限公司 用于钟表的擒纵系统
CN105319939A (zh) * 2010-06-22 2016-02-10 斯沃奇集团研究和开发有限公司 用于钟表的擒纵系统
WO2014146842A1 (fr) * 2013-03-22 2014-09-25 Omega Sa Ancre d'échappement coaxial monobloc
JP2015025721A (ja) * 2013-07-25 2015-02-05 セイコーインスツル株式会社 時計用歯車、脱進機構、時計用ムーブメントおよび機械式時計
JP2015025719A (ja) * 2013-07-25 2015-02-05 セイコーインスツル株式会社 脱進機、時計用ムーブメントおよび時計
CN109254517A (zh) * 2017-07-12 2019-01-22 天津海鸥表业集团有限公司 一种手表的擒纵调速模块及应用
CN109254517B (zh) * 2017-07-12 2023-11-07 天津海鸥表业集团有限公司 一种手表的擒纵调速模块及应用

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