EP1904902A2 - Echappement a ancre a haut rendement - Google Patents
Echappement a ancre a haut rendementInfo
- Publication number
- EP1904902A2 EP1904902A2 EP06763914A EP06763914A EP1904902A2 EP 1904902 A2 EP1904902 A2 EP 1904902A2 EP 06763914 A EP06763914 A EP 06763914A EP 06763914 A EP06763914 A EP 06763914A EP 1904902 A2 EP1904902 A2 EP 1904902A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pallet
- wheel
- teeth
- mobile
- anchor
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 238000005530 etching Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
-
- 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
- G04B13/00—Gearwork
- G04B13/02—Wheels; Pinions; Spindles; Pivots
- G04B13/027—Wheels; Pinions; Spindles; Pivots planar toothing: shape and design
Definitions
- the present invention relates to a high-performance exhaust for a timepiece comprising an anchor articulated on a rod and cooperating with an articulated exhaust mobile on an axis, this mobile having a plurality of teeth spaced regularly around said mobile , said anchor comprising an inlet pallet and an output pallet arranged to alternately receive a pulse from one of the teeth that carries the mobile and then serve as a rest plane for said tooth.
- the Swiss lever escapement where each of the vanes alternately receives an impulse to launch a rocker provided with said escapement, the escapement and the anchor being kept at rest while this pendulum freely performs what is called its extra bow.
- the Swiss lever escapement is the most used escapement in watchmaking. In most cases its anchor is provided with pallets disposed substantially equidistant from a line connecting the axis of the escapement mobile to the rod on which is articulated the anchor, the mobile having a single escape wheel.
- a Swiss lever escapement as defined in the first paragraph of this description is described in the disclosure CH-570 644.
- This document proposes a high-performance exhaust. He recalls that the escapement in a watch serves to transmit the energy of the mainspring to the balance which acts as a regulator of the gait. Now the precision of operation, and in particular the sensitivity of a watch to the disturbances, is closely related to the energy stored in the balance spring system. This energy depends on several factors, such as, among other things, the efficiency of the gear train and the performance of the escapement. The overall efficiency of the exhaust can be divided into an escapement-anchor wheel performance and an anchor-balance performance.
- the improvement of the escapement wheel-anchor performance can be done by increasing the energy which is supplied to the pendulum during the impulse given to the pallets of anchor by the teeth of the escape wheel.
- This increase in energy is very real if the pallet describes a trajectory that makes, at the point of contact with the tooth of the escape wheel, an angle as small as possible with the trajectory of said tooth. This can be achieved by moving the entry pallet away from and closer to the exit pallet, which causes a maximum approximation of the directions of movement of said pallets of the direction of movement of the teeth of the escape wheel.
- FIG. 1 shows, by way of example, an escapement drawn according to the principles of the prior art in which the theoretical instantaneous efficiencies are markedly improved with respect to a conventional exhaust.
- the escape wheel 4 carries teeth 8 which transmit the driving energy to the entry and exit pallets 6 and 7 of the anchor 2, which, via its fork 9, transmits it to the balance, respectively to the peg 10 of the plate 11 of the balance .
- the entry and exit pallets 7 embrace a number of teeth 8 at least equal to one-fifth of the total number of teeth carried by the escape wheel 4.
- the entry pallet 6 embraces, from a line 12 connecting the axis 5 of the wheel 4, at least one tooth 8 more than the output pallet 7 embraces from said line.
- the applicant of the present invention has realized that the high efficiency provided by the invention of the prior art could be further increased and this even if the pallets of the anchor are disposed substantially equidistant from the line connecting the axis of the escapement mobile to the rod on which is articulated the anchor.
- the present invention in addition to being in accordance with the first paragraph of this description, is remarkable in that the escape wheel comprises first and second integral and coaxial wheels comprising the same number of teeth, the entry and exit pallets respectively cooperate with the first and second wheels and in that the peripheral radius of the first wheel is larger than the peripheral radius of the second wheel.
- FIG. 1 is an illustration of the prior art
- FIG. 2 is a stylized and schematic plan view of the exhaust according to a preferred embodiment of the present invention
- FIG. 3 is a graphical representation of the angle formed by the instantaneous direction of displacement of a tooth of the escape wheel and by the instantaneous direction of movement of the anchor entry pallet, for two different radii of the escape wheel, and
- FIG. 4 is a graphical representation of the angle formed by the instantaneous direction of displacement of a tooth of the escape wheel and by the instantaneous direction of the displacement of the pallet of the anchor, for two spokes. different from the escape wheel.
- FIG. 2 A preferred embodiment of the exhaust according to the present invention is shown in Figure 2.
- This exhaust 1 is a stylized and schematic plan view. It comprises an anchor 2 hinged to a rod 3.
- the anchor cooperates with an escapement wheel 4 articulated on an axis 5.
- the escapement wheel 4 comprises first and second wheels 13 and 14 mounted integral and coaxial and each comprising the same number of teeth referenced respectively 15 and 16.
- the anchor 2 carries an input pallet 6 cooperating with the teeth 15 of the first wheel 13 and an output pallet 7 cooperating with the teeth 16 of the second wheel 14.
- the peripheral radius R1 of the first wheel 13 is larger than the peripheral radius R2 of the second wheel 14.
- FIG. 2 shows, on the left, a part of the wheel 13 whose teeth 15 cooperate with the entry pallet 6 and, on the right, a part of the wheel 14 whose teeth 16 cooperate with the pallet 7.
- the pallets 6 and 7 embrace a number of pairs of teeth 15 and 16 at the less than one fifth of the total number of pairs of teeth carried by the mobile 4 composed of the two wheels 13 and 14.
- the entry pallet embraces from a line 12 connecting the axis 5 of the mobile 4 to the rod 3 of the anchor 2 at least one pair of teeth 15 and 16 of said mobile more than the output pallet 7 embraces from said line.
- the escapement wheel 4 comprising the wheels 13 and 14 comprises 20 pairs of teeth 15 and 16 and the number of pairs of teeth 15 and 16 embraced by the pallets 6 and 7 is four, which is one fifth of the total number of pairs of teeth.
- the example illustrated in Figure 2 shows three pairs of teeth 15 and 16 to the left of the line 12 and a single pair of teeth to the right of this line, so that the input pallet 6 embraces from Figure 12 at least one pair of teeth moreover, the output pallet 7 does not embrace it from this line.
- FIG. 3 is a graphical representation of the angle ⁇ formed by the instantaneous direction of the displacement of a tooth of the escape wheel and by the instantaneous direction of movement of the entry pallet of the anchor, the tooth being represented in end of pulse position.
- the trajectory 20 of the teeth of a single escape wheel obeying the prior art is shown in dotted lines (dashed lines) and in dashed line the trajectory 21 of the entry pallet of the anchor. 5 denotes the axis of the wheel and 3 the rod of the anchor.
- At the point of impact 22 of the tooth with the pallet there is the instantaneous direction 23 of the displacement of the tooth which is a tangent to the trajectory 20 of the wheel.
- These directions 23 and 24 form an angle ⁇ 1.
- the trajectory of the teeth of a large radius escape wheel R1 executed according to the invention is shown in solid lines and the same trajectory 21 of the entry pallet of the anchor is dotted. 5 is always the axis of the wheel and 3 The rod of the anchor.
- At the point of impact 26 of the tooth with the pallet we find the instantaneous direction 27 of the displacement of the tooth which is a tangent to the trajectory 25 of the wheel.
- the directions 27 and 28 form an angle ⁇ 2.
- the impact point 26 is distanced from the axis 5 of the wheel of the same radius R1 as the radius R1 of the wheel executed according to the invention since, as mentioned above, the tooth of the wheel is represented end of pulse position, when the tip of this tooth will leave the pallet.
- FIG. 4 is a graphical representation of the angle ⁇ formed by the instantaneous direction of the displacement of a tooth of the escape wheel and by the instantaneous direction of movement of the pallet of exit of the anchor, the tooth being represented in end of pulse position.
- the trajectory 20 of the teeth of a single escape wheel according to the prior art is shown in dashed lines (dashed lines) and in dashed lines the trajectory 30 of the pallet of exit of the anchor. 5 is always the axis of the wheel and the rod of the anchor.
- At the point of impact 31 of the tooth with the pallet there is the instantaneous direction 32 of the displacement of the tooth which is a tangent to the trajectory 20 of the wheel.
- These directions 32 and 33 form an angle ⁇ 1.
- the trajectory 34 of the teeth of a small radius escape wheel R2 executed according to the invention is shown in dotted lines and in dashed lines the same trajectory 30 of the pallet of exit of the anchor. 5 is always the axis of the wheel and 3 the anchor rod.
- the instantaneous direction 36 of movement of the tooth which is a tangent to the path 34 of the wheel.
- there is the instantaneous direction 37 of the displacement of the output pallet which is a tangent to the trajectory 30 of the pallet.
- the directions 36 and 37 form an angle ⁇ 2.
- the point of impact 35 is distanced from the axis 5 of the wheel of the same radius R2 as the radius R2 of the wheel executed according to the invention since, as mentioned above, the tooth of the wheel is represented in end of pulse position, at the moment when the tip of this tooth will leave the pallet.
- first and second wheels 13 and 14 can be made in one piece as modern technology allows. This single piece will of course include a first level corresponding to the wheel of large radius and a second level corresponding to the wheel of smaller radius.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gears, Cams (AREA)
- Transmission Devices (AREA)
- Cleaning In General (AREA)
- Pallets (AREA)
- Mechanically-Actuated Valves (AREA)
- Mechanical Control Devices (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH11202005 | 2005-07-04 | ||
PCT/EP2006/063616 WO2007003539A2 (fr) | 2005-07-04 | 2006-06-28 | Echappement a ancre a haut rendement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1904902A2 true EP1904902A2 (fr) | 2008-04-02 |
EP1904902B1 EP1904902B1 (fr) | 2009-03-11 |
Family
ID=37491685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06763914A Active EP1904902B1 (fr) | 2005-07-04 | 2006-06-28 | Echappement a ancre a haut rendement |
Country Status (9)
Country | Link |
---|---|
US (1) | US7731415B2 (fr) |
EP (1) | EP1904902B1 (fr) |
JP (1) | JP4894051B2 (fr) |
KR (1) | KR20080020670A (fr) |
CN (1) | CN101238419B (fr) |
AT (1) | ATE425479T1 (fr) |
DE (1) | DE602006005672D1 (fr) |
HK (1) | HK1123858A1 (fr) |
WO (1) | WO2007003539A2 (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE433136T1 (de) * | 2007-03-09 | 2009-06-15 | Eta Sa Mft Horlogere Suisse | Hemmung mit tangentialimpulsen |
DE602007008077D1 (de) * | 2007-05-30 | 2010-09-09 | Omega Sa | Ankerhemmung für Uhren |
CH708113B1 (de) | 2007-09-13 | 2014-12-15 | Stéphane Von Gunten | Anker für eine Uhrenhemmung. |
CH705118B1 (fr) * | 2007-12-27 | 2012-12-31 | Chopard Technologies Sa | Mouvement horloger comportant un organe réglant à fréquence d'oscillation élevée. |
EP2336832B1 (fr) * | 2009-12-21 | 2020-12-02 | Rolex Sa | Échappement à ancre suisse |
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 |
EP2831677B1 (fr) * | 2012-03-29 | 2016-05-25 | Nivarox-FAR S.A. | Mécanisme d'échappement flexible à cadre mobile |
DE102013100264A1 (de) | 2013-01-11 | 2014-07-17 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter mit einer Verbindung zum Ölvolumen eines Transformators |
DE102013100266A1 (de) | 2013-01-11 | 2014-07-17 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter |
DE102013100263A1 (de) | 2013-01-11 | 2014-07-31 | Maschinenfabrik Reinhausen Gmbh | Laststufenschalter mit einer Verbindung zum Ölvolumen eines Transformators |
EP2942147B1 (fr) * | 2014-05-08 | 2018-11-21 | Nivarox-FAR S.A. | Mécanisme d'échappement d'horlogerie sans lubrification |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US22791A (en) * | 1859-02-01 | Escapement foe timekeepers | ||
US46652A (en) * | 1865-03-07 | Improvement in chronometer-escapements | ||
FR841089A (fr) * | 1938-03-16 | 1939-05-10 | Mécanisme d'échappement pour mesure de temps destiné aux horloges, aux montres et à d'autres applications | |
CH358036A (fr) * | 1956-06-21 | 1961-10-31 | Theurillat Xavier | Echappement à ancre à sauts libres pour mouvements d'horlogerie |
DE1163253B (de) * | 1959-04-15 | 1964-02-13 | Rolex Montres | Ankerrad fuer Uhren mit Palettenanker |
CH570644B5 (fr) * | 1972-09-01 | 1975-12-15 | Far Fab Assortiments Reunies | |
DE2520758A1 (de) * | 1975-05-09 | 1976-11-18 | Paul Merkle | Steigradhemmung fuer uhren |
CH609824GA3 (en) * | 1976-03-25 | 1979-03-30 | Lever escapement for timepiece | |
EP0018796B1 (fr) * | 1979-04-30 | 1984-11-07 | George Daniels | Montres, pendules, chronomètres et échappements destinés à ces instruments |
EP1041459B1 (fr) * | 1999-03-31 | 2002-09-18 | Ulysse Nardin S.A. | Echappement pour garde-temps |
EP1045297B1 (fr) * | 1999-04-12 | 2003-07-02 | Omega SA | Echappement coaxial à ancre |
DE60133171T2 (de) * | 2001-01-09 | 2009-04-30 | Manufacture Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle Sa | Hemmung für Zeitmesser |
ATE443880T1 (de) * | 2002-05-28 | 2009-10-15 | Manuf Et Fabrique De Montres E | Hemmung für uhren |
CH700720B1 (fr) * | 2003-06-23 | 2010-10-15 | Ronda Ag | Engrenage pour mouvement de montre et mécanisme d'affichage du quantième muni d'un tel engrenage. |
DE50307083D1 (de) * | 2003-09-22 | 2007-05-31 | Paul Gerber | Hemmung für Uhr |
-
2006
- 2006-06-28 US US11/994,714 patent/US7731415B2/en not_active Expired - Fee Related
- 2006-06-28 WO PCT/EP2006/063616 patent/WO2007003539A2/fr active Application Filing
- 2006-06-28 EP EP06763914A patent/EP1904902B1/fr active Active
- 2006-06-28 DE DE602006005672T patent/DE602006005672D1/de active Active
- 2006-06-28 JP JP2008518820A patent/JP4894051B2/ja not_active Expired - Fee Related
- 2006-06-28 CN CN2006800290135A patent/CN101238419B/zh not_active Expired - Fee Related
- 2006-06-28 AT AT06763914T patent/ATE425479T1/de not_active IP Right Cessation
- 2006-06-28 KR KR1020087000475A patent/KR20080020670A/ko not_active Application Discontinuation
-
2009
- 2009-01-09 HK HK09100243.6A patent/HK1123858A1/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2007003539A2 * |
Also Published As
Publication number | Publication date |
---|---|
US20080298179A1 (en) | 2008-12-04 |
KR20080020670A (ko) | 2008-03-05 |
WO2007003539A3 (fr) | 2007-06-07 |
CN101238419B (zh) | 2010-04-07 |
ATE425479T1 (de) | 2009-03-15 |
JP2008545129A (ja) | 2008-12-11 |
HK1123858A1 (en) | 2009-06-26 |
JP4894051B2 (ja) | 2012-03-07 |
CN101238419A (zh) | 2008-08-06 |
EP1904902B1 (fr) | 2009-03-11 |
WO2007003539A2 (fr) | 2007-01-11 |
US7731415B2 (en) | 2010-06-08 |
DE602006005672D1 (de) | 2009-04-23 |
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