WO2005103843A1 - Dispositif et procede de fixation d’une levee sur une ancre d’un echappement d’un mouvement d’horlogerie - Google Patents
Dispositif et procede de fixation d’une levee sur une ancre d’un echappement d’un mouvement d’horlogerie Download PDFInfo
- Publication number
- WO2005103843A1 WO2005103843A1 PCT/EP2005/002411 EP2005002411W WO2005103843A1 WO 2005103843 A1 WO2005103843 A1 WO 2005103843A1 EP 2005002411 W EP2005002411 W EP 2005002411W WO 2005103843 A1 WO2005103843 A1 WO 2005103843A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- anchor
- lift
- housing
- crystallographic phase
- fixing
- Prior art date
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
- 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
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
Definitions
- the present invention relates to a device for fixing a lift on an anchor of an escapement of a timepiece movement, and more particularly such a device eliminating the use of shellac.
- the present invention also relates to a method of fixing a lift on an anchor of an escapement of a timepiece movement.
- escapement refers to the mechanism placed between the cog of a clockwork movement and its regulator, for example the pendulum of the watch movement, this escapement having the function of maintaining the oscillations of the pendulum and controlling the speed cog. Referring to Figure 1, we will briefly describe an escapement 1 of a classic anchor watch.
- the escapement 1 comprises an escape wheel 2, an anchor 4 as well as a large plate 6 carrying a pin 8 and a small plate 10 provided with a notch 11 carried by the axis of the balance wheel 12.
- the anchor comprises two lifts such as 14 cooperating with the wheel 2 and a rod 16 ending in a fork 17 with three teeth cooperating with the large and small plates 6 and 10 respectively.
- These lifts 14 are each secured in a suitable recess or recess 18 provided in the branches such as 19 of the anchor 4.
- the fork 17 comprises two external teeth such as 20 which cooperate with the dowel 8 while the internal tooth or dart 22 cooperates with the small plate 10 and prevents inadvertent overturning of the anchor 4 during the additional oscillation of the balance (not shown).
- the movements of the anchor 4 are limited by pins or stops such as 24 against which the strip 16 abuts.
- the rod 16 presses against one of the two limiting pins 24.
- a tooth 2d of the escape wheel 2 is pressed against one of the lifts 14 as shown in FIG. 1.
- the inner tooth 22 of the fork 17 is released from the notch 11 so that the pendulum is released and travels a distance counterclockwise S, the amplitude of which is determined by the accumulated energy.
- the balance then starts clockwise to release the lift 14 of the tooth 2d. After the impulse given on the lift 14 by the tooth 2d, the anchor travels empty for a small distance, known as the lost path, until the rod 16 comes up against the pin 24.
- This lost path is a way of ensuring that all of the teeth of the escape wheel 2 can pass.
- the length of this lost path is a function of the penetration P of the tooth of the escape wheel 2 on the rest plane 27 of the lift 14, this penetration having to be both sufficient to avoid untimely release of the escape wheel 2, for example during an impact, and sufficiently weak to guarantee a release of the teeth of the escape wheel 2 in all operating circumstances in order to obtain an exhaust 1 having optimum efficiency.
- the means of fixing the lifts to the anchor are critical for the correct functioning of the exhaust and must allow a possibility of adjusting the penetration P
- the lifts are currently fixed in their housings by means of rubber- lacquer.
- Shellac is a natural organic glue which has the advantage of being able to be melted at low temperature at any time into a thick, sticky liquid and thus allow an easy and precise adjustment of the position of the leaven.
- the use of shellac has some drawbacks, however. Indeed, shellac is very sensitive to chemical agents for washing movements used and consequently releases shellac particles which come to be fixed at various places in the movement. Depending on the location, these particles can considerably affect the efficiency of the escapement and therefore disrupt the movement.
- the main object of the invention is therefore to remedy the drawbacks of the aforementioned prior art by providing a device for fixing a lift on an anchor which ensures reliable fixing by dispensing with the use of shellac or '' any other glue while allowing easy and precise adjustment of the penetration of the lift in the toothing of the escape wheel.
- the invention also aims to provide such a device which is easy to implement and allows precise and economical fixing.
- the subject of the invention is a device for fixing a lift on an exhaust anchor comprising at least one housing provided for receiving said lift, characterized in that the portion of the anchor comprising said housing or any the anchor is made of a shape memory alloy capable of undergoing a reversible transformation from an austenitic crystallographic phase to a martensitic crystallographic phase.
- shape memory alloys have the property of being able to undergo a reversible transformation from a high temperature crystallographic phase called austenitic to a low temperature crystallographic phase called martensitic and thus to be able to be educated to take under certain temperature conditions configurations corresponding to memorized states.
- a shape memory alloy for fixing a lift also makes it possible to produce an anchor and lifts with wide tolerances without thereby affecting the effectiveness of the tightening insofar as the deformations permitted by such a alloy easily compensate for these tolerances.
- Another advantage of using a shape memory alloy to fix a lift on an anchor lies in the possibility of assembling (tightening) and disassembling (loosening) the lift in its housing a large number of times without l '' damage by simple heating respectively cooling of the anchor. This is of great interest for the adjustment of the penetration P.
- the portion of the anchor comprising the housing receiving the lift so that this housing does not tighten the lift substantially and allows movement of the lift in the latter when the anchor is in its martensitic crystallographic phase and that it fixes the lifting firmly when said portion of the anchor is in the austenitic crystallographic phase while it is at ambient temperature.
- FIG. 2a shows a detail of Figure 1 illustrating the portion of the anchor comprising the housing receiving the lift in an adjustment configuration
- - Figure 2b shows a detail of Figure 1 illustrating the portion of the anchor comprising the housing receiving the lift in a clamping configuration
- FIGs 2a and 2b is illustrated the portion 4a of an anchor 4 comprising the housing 18 receiving the lift 14.
- This portion 4a is made of a shape memory alloy capable of undergoing a reversible transformation from an austenitic crystallographic phase to a martensitic crystallographic phase when it passes respectively below a determined transformation temperature.
- the portion 4a can be made of an Ni-Ti, Ni-alloy
- the shape memory alloy chosen to make the portion 4a of the anchor will have a martensite / austenite transformation temperature outside the temperature range of use of the anchor which typically extends between - 20 ° C and 50 ° C. For reasons of simplification, this temperature range will be designated by "ambient temperature” in the following description.
- the housing 18 is formed in an extreme part of the branch 19 by a notch delimited by jaws 32, 34.
- the jaws 32 and 34 are configured to be able to close in the direction of the housing 18 and thus tighten the lift 14 arranged in the latter.
- the jaw 32 is fixed and the jaw 34 is movable between a first so-called loose position (FIG. 2a) in which the lift can be introduced into the housing 18 and moved into that, in particular for the purpose of adjusting the penetration P and a second position said clamped (FIG. 2b) in which the jaws fixedly clamp the lift and immobilize it in the housing 18.
- the jaw 32 comprises two clamping surfaces 32a, 32b flat and aligned intended for cooperate with a face 14a of the lift and the jaw 34 comprises a clamping surface 34a substantially opposite the clamping surfaces 32a and 32b, the clamping surface 34a being intended to cooperate with a face 14b of the lift, opposite to the face 14a.
- the clamping surface 32a and 32b extend on either side of a clearance 33 formed in the fixed jaw 32.
- the clamping surface 34a extends substantially between the two clamping surfaces 32a and 32b. The jaws 32 and 34 thus allow stable clamping at three points of the lift in its housing. At room temperature, the jaw 34 is in the clamped position.
- the portion of the anchor 4a is made of a shape memory alloy having a martensitic crystallographic phase at room temperature.
- a rise in temperature above the martensite / austenite transformation temperature induces a deformation of the jaw 34 bringing the latter into the loosened position.
- the jaw remains in its loosened position so that the lift 14 can be easily introduced into the housing 18 and its position in the housing can be adjusted in order to obtain the desired penetration P. Once this adjustment is complete, it suffices to allow the portion 4a of the anchor to return to ambient temperature to bring the jaw 34 back into the clamped position.
- an anchor in accordance with this embodiment it is possible, for example, to use a Ni-Ti alloy having the martensite / austenite transformation temperature range of between 80 ° C. and 100 ° C.
- the education of the anchor to obtain the opening of the clamp by heating the anchor above the martensite / austenite transformation temperature is typically done as follows, (a) First of all, for example by machining, an anchor in which the jaw 34 is in the loosened position (FIG.
- the portion of the anchor 4a is made of a shape memory alloy having an austenitic crystallographic phase at room temperature.
- a lowering of the temperature below the martensite / austenite transition temperature induces a deformation of the jaw 34 bringing the latter into the loosened position.
- the portion 4a of the anchor can return to ambient temperature to bring the jaw 34 back into the clamped position. If necessary readjust the penetration P or replace the lift, it is sufficient to cool the portion 4a of anchor below the transformation temperature.
- the cooling of the anchor can be obtained using a flow of conventional cooling gas such as a flow of nitrogen.
- the adhesive used will preferably be an adhesive which resists impact, detergents used for washing anchors, and aging, such as an epoxy adhesive.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Plates (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Adornments (AREA)
- Micromachines (AREA)
- Joining Of Building Structures In Genera (AREA)
- Table Equipment (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05715816A EP1730604B1 (fr) | 2004-03-23 | 2005-03-08 | Dispositif et procede de fixation d'une levee sur une ancre d'un echappement d'un mouvement d'horlogerie |
JP2007504286A JP4652395B2 (ja) | 2004-03-23 | 2005-03-08 | 時計用ムーブメントの脱進機のアンクルにツメを固定する装置と方法。 |
US10/599,275 US7527425B2 (en) | 2004-03-23 | 2005-03-08 | Device and method for securing a pallet-stone to an escapement pallet of a timepiece movement |
HK07104329.7A HK1098205A1 (en) | 2004-03-23 | 2007-04-24 | Device for securing a pallet-stone to an escapement pallet of a timepiece movement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04006893.4 | 2004-03-23 | ||
EP04006893A EP1580625A1 (fr) | 2004-03-23 | 2004-03-23 | Dispositif et procédé de fixation d'une levée sur une ancre d'un échappement d'un mouvement d'horlogerie |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005103843A1 true WO2005103843A1 (fr) | 2005-11-03 |
Family
ID=34854583
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/002411 WO2005103843A1 (fr) | 2004-03-23 | 2005-03-08 | Dispositif et procede de fixation d’une levee sur une ancre d’un echappement d’un mouvement d’horlogerie |
Country Status (7)
Country | Link |
---|---|
US (1) | US7527425B2 (fr) |
EP (2) | EP1580625A1 (fr) |
JP (1) | JP4652395B2 (fr) |
CN (1) | CN100524098C (fr) |
HK (1) | HK1098205A1 (fr) |
TW (1) | TWI368118B (fr) |
WO (1) | WO2005103843A1 (fr) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1770452A1 (fr) * | 2005-09-30 | 2007-04-04 | Peter Baumberger | Echappement à detente pour pièce d'horlogerie |
DE602007004447D1 (de) * | 2007-04-18 | 2010-03-11 | Eta Sa Mft Horlogere Suisse | Ankerhemmung für Uhren |
CH705276B1 (fr) * | 2007-12-28 | 2013-01-31 | Chopard Technologies Sa | Organe d'entraînement et de transmission pour un échappement à ancre, plateau et échappement en étant équipés, et pièce d'horlogerie les comportant. |
US20110105004A1 (en) * | 2009-10-30 | 2011-05-05 | Gm Global Technology Operations, Inc. | Fan system for venting a vehicle |
US8769947B2 (en) * | 2009-11-20 | 2014-07-08 | GM Global Technology Operations LLC | Exhaust system |
CH702930A2 (fr) * | 2010-04-01 | 2011-10-14 | Patek Philippe Sa Geneve | Echappement d'horlogerie à protection contre les chocs. |
CN103003758B (zh) * | 2010-06-22 | 2015-08-12 | 斯沃奇集团研究和开发有限公司 | 调整机械组件的第一部件和第二部件的相对位置的方法 |
EP2413202B1 (fr) * | 2010-07-30 | 2017-11-15 | ETA SA Manufacture Horlogère Suisse | Procédé d'amélioration de tenue à l'usure et aux chocs d'un composant de mouvement d'horlogerie. Ancre pour mouvement d'horlogerie résistante à l'usure et aux chocs |
JP5485859B2 (ja) * | 2010-11-17 | 2014-05-07 | セイコーインスツル株式会社 | アンクル脱進機及びこれを備えた機械式時計 |
US8607562B2 (en) * | 2011-02-28 | 2013-12-17 | GM Global Technology Operations LLC | Shape memory alloy heat engines and energy harvesting systems |
US9003789B2 (en) * | 2011-02-28 | 2015-04-14 | GM Global Technology Operations LLC | Energy harvesting system |
US8844281B2 (en) * | 2011-02-28 | 2014-09-30 | GM Global Technology Operations LLC | Shape memory alloy heat engines and energy harvesting systems |
EP2506092B1 (fr) * | 2011-03-31 | 2020-01-08 | Cartier International AG | Mécanisme d'échappement notamment pour mouvement d'horlogerie |
EP2607968B1 (fr) * | 2011-12-21 | 2014-10-08 | Vaucher Manufacture Fleurier S.A. | Mécanisme d'échappement |
EP2746870B1 (fr) * | 2012-12-18 | 2017-02-08 | Meco S.A. | Couronne démontable |
EP2765705B1 (fr) * | 2013-02-07 | 2015-08-19 | The Swatch Group Research and Development Ltd. | Résonateur thermocompensé par un métal à mémoire de forme |
EP2863272B1 (fr) * | 2013-10-16 | 2020-11-25 | Montres Breguet SA | Mécanisme d'échappement pour mouvement de montre |
EP2871535B1 (fr) * | 2013-11-06 | 2017-06-28 | ETA SA Manufacture Horlogère Suisse | Ancre d'horlogerie à cornes optimisées |
EP2881804B1 (fr) * | 2013-12-09 | 2017-08-02 | Montres Breguet S.A. | Ensemble spiral-piton d'horlogerie |
EP2881803B1 (fr) | 2013-12-09 | 2017-10-04 | Montres Breguet SA | Chaussée d'horlogerie |
EP3182227B1 (fr) * | 2015-12-18 | 2020-06-24 | ETA SA Manufacture Horlogère Suisse | Procede de traitement de composants d'horlogerie sur bouclard, et bouclard |
US11604436B2 (en) * | 2017-11-13 | 2023-03-14 | Rolex Sa | System for fixing a timepiece movement in a watch case |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US581535A (en) * | 1897-04-27 | Balance-escapement | ||
US4293942A (en) * | 1978-12-15 | 1981-10-06 | Bbc Brown, Boveri & Company, Limited | Waterproof watch and method for making |
JPH05220849A (ja) * | 1992-02-17 | 1993-08-31 | Seiko Instr Inc | 接合体および接合方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH1805867A4 (de) * | 1967-12-22 | 1969-11-28 | Mosset William | Verfahren zum Herstellen eines Ankers für Uhrwerke |
CH1060869A4 (fr) * | 1969-07-11 | 1971-06-30 | ||
JPS63274893A (ja) * | 1987-05-06 | 1988-11-11 | Yoichi Shimizu | 指輪時計 |
EP0918264B9 (fr) | 1997-11-14 | 2003-02-26 | Bob Microtechnique Sàrl | Dispositif de réglage de la position d'une levée montée sur une ancre d'un échappement d'un mouvement d'horlogerie |
EP1045297B1 (fr) * | 1999-04-12 | 2003-07-02 | Omega SA | Echappement coaxial à ancre |
-
2004
- 2004-03-23 EP EP04006893A patent/EP1580625A1/fr not_active Withdrawn
-
2005
- 2005-03-08 WO PCT/EP2005/002411 patent/WO2005103843A1/fr active Application Filing
- 2005-03-08 CN CNB2005800092021A patent/CN100524098C/zh not_active Expired - Fee Related
- 2005-03-08 EP EP05715816A patent/EP1730604B1/fr active Active
- 2005-03-08 US US10/599,275 patent/US7527425B2/en not_active Expired - Fee Related
- 2005-03-08 JP JP2007504286A patent/JP4652395B2/ja not_active Expired - Fee Related
- 2005-03-15 TW TW094107891A patent/TWI368118B/zh not_active IP Right Cessation
-
2007
- 2007-04-24 HK HK07104329.7A patent/HK1098205A1/xx not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US581535A (en) * | 1897-04-27 | Balance-escapement | ||
US4293942A (en) * | 1978-12-15 | 1981-10-06 | Bbc Brown, Boveri & Company, Limited | Waterproof watch and method for making |
JPH05220849A (ja) * | 1992-02-17 | 1993-08-31 | Seiko Instr Inc | 接合体および接合方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 0176, no. 64 (M - 1523) 8 December 1993 (1993-12-08) * |
Also Published As
Publication number | Publication date |
---|---|
TW200534060A (en) | 2005-10-16 |
EP1580625A1 (fr) | 2005-09-28 |
EP1730604A1 (fr) | 2006-12-13 |
JP2007530929A (ja) | 2007-11-01 |
CN1934506A (zh) | 2007-03-21 |
HK1098205A1 (en) | 2007-07-13 |
JP4652395B2 (ja) | 2011-03-16 |
US20080101162A1 (en) | 2008-05-01 |
CN100524098C (zh) | 2009-08-05 |
US7527425B2 (en) | 2009-05-05 |
EP1730604B1 (fr) | 2012-10-03 |
TWI368118B (en) | 2012-07-11 |
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