EP1074897B1 - Vorrichtung zur Anzeige der Gangreserve einer Uhr - Google Patents

Vorrichtung zur Anzeige der Gangreserve einer Uhr Download PDF

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Publication number
EP1074897B1
EP1074897B1 EP99115389A EP99115389A EP1074897B1 EP 1074897 B1 EP1074897 B1 EP 1074897B1 EP 99115389 A EP99115389 A EP 99115389A EP 99115389 A EP99115389 A EP 99115389A EP 1074897 B1 EP1074897 B1 EP 1074897B1
Authority
EP
European Patent Office
Prior art keywords
wheel
pinion
display
gear
barrel
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.)
Expired - Lifetime
Application number
EP99115389A
Other languages
English (en)
French (fr)
Other versions
EP1074897A1 (de
Inventor
Alain Zaugg
Capt Edmond
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.)
Frederic Piguet SA
Original Assignee
Frederic Piguet 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.)
Filing date
Publication date
Application filed by Frederic Piguet SA filed Critical Frederic Piguet SA
Priority to AT99115389T priority Critical patent/ATE428958T1/de
Priority to EP99115389A priority patent/EP1074897B1/de
Priority to DE69940727T priority patent/DE69940727D1/de
Priority to ES99115389T priority patent/ES2325232T3/es
Priority to US09/631,381 priority patent/US6685352B1/en
Priority to JP2000236689A priority patent/JP4671477B2/ja
Publication of EP1074897A1 publication Critical patent/EP1074897A1/de
Application granted granted Critical
Publication of EP1074897B1 publication Critical patent/EP1074897B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04B13/00—Gearwork
    • G04B13/007—Gearwork with differential work
    • G04B13/008—Differentials
    • 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
    • G04B9/00—Supervision of the state of winding, e.g. indicating the amount of winding
    • G04B9/005—Supervision of the state of winding, e.g. indicating the amount of winding by optical indication of the amount of winding

Definitions

  • the present invention relates to a power reserve indicator device for a timepiece, that is to say a device for indicating to the wearer the degree of development or reassembly of the mainspring of a timepiece mechanical.
  • This indicator comprises a pinion which is integral with the hour wheel and whose axis is the axis of a plane differential gear. Said pinion drives a satellite pinion which pivots on a plate and which meshes with the inner toothing of a differential ring.
  • This differential ring freely adjusted on a cylindrical core of the plate, comprises an external toothing which meshes with a power reserve pinion integral with the barrel shaft.
  • the hour wheel When the hour wheel turns, it drives the pinion which meshes with the pinion satellite.
  • the differential ring As the differential ring is substantially stationary in normal operation of the watch, the planet pinion rotates about itself and rolls on the internal toothing of said differential ring, which causes the rotation of the plate.
  • the plate itself supports a indicator disc which makes an angular displacement according to the power reserve which can still be provided by the winding of the mainspring.
  • the hour wheel when raising the barrel spring, the hour wheel, and therefore the pinion, remain substantially immobile.
  • the barrel shaft on which is mounted a pinion rotates.
  • This barrel pinion turning, drives the differential ring by means of a return.
  • the differential ring meshes with its internal teeth with the satellite.
  • the satellite rolls on the pinion gear and drives the plate in rotation.
  • the indicator disk supported by the plate, makes an angular displacement in the opposite direction to the previous one as a function of the power reserve provided by the number of winding turns of the mainspring.
  • the power reserve indicator mechanism described above has serious drawbacks. Indeed, when setting the time of the watch, it is necessary to come block this mechanism so that the indication of the reserve of walking is not distorted by the rotation of the hour wheel on which is fixed the pinion. To remedy this problem, the patent CH 689 414 proposes a rather complex system in which the power reserve indicator disk is elastically adjusted on the plate. A setting spring moves under the action of the time setting rod and urges a limiting pin which compresses the indicator disk against the frame, so that said indicator disk is no longer driven by the plateau and remains motionless in the position it occupies. Such a construction, comprising several moving parts relative to each other, is unreliable and likely to be easily damaged.
  • the patent document CH 13340 describes a planetary gear with double satellite (pinion and wheel) and without crown.
  • the pinion and wheel that make up the double satellite rotate at the same speed but generate a gear ratio (the wheel has a larger number of teeth than the pinion) that performs the differential function.
  • the differential described in the patent document CH 13340 is therefore flat but can not be located in the center of the movement because it does not have a crown with internal teeth.
  • the object of the present invention is to remedy the above-mentioned problems and disadvantages as well as others by proposing a power-reserve indicator device for a timepiece that has a small footprint as well as a great simplicity of construction.
  • the present invention relates to a power reserve indicator device for a timepiece with manual or automatic winding according to claim 1
  • the present invention provides a power reserve indicator device having separate arming and disarming gearing, so that such a device can be easily integrated into a large number of different motions.
  • the differential gear is positioned in the center of the movement on the hour wheel. This makes it possible to distribute the display of the power reserve on all the positions of the dial indifferently, and to arrange the differential gear inside the date disc. On the other hand, if the differential gear was not positioned at the center of the movement, it should be smaller, and therefore more difficult to achieve.
  • the differential gearing is of simple planetary type whereas usually the differential gears used in the power reserve indicator mechanisms are of planetary type with double satellite and double central gear.
  • This solution thus makes it possible to obtain a differential gear that is flatter than in the past, which substantially reduces its bulk.
  • FIG. 1 The elevation views of figures 1 and 2 partially illustrate a timepiece of the wristwatch type for example, equipped with a power reserve indicator device according to the present invention and generally designated by the general numerical reference 1.
  • the watch comprises a watch movement equipped with a cylinder (not shown) in which is housed a mainspring (also not shown).
  • the movement may, depending on the case, be manual winding or automatic. In the latter case, a disengaging mechanism must be provided to avoid distorting the power reserve indication when the mainspring is fully armed and the flange slides in the barrel.
  • the power reserve indicator device 1 comprises a rotary display element formed, for example, of a power-reserve needle 2. This needle 2, as a function of the relative position it occupies with respect to a mark on the dial 4 of the timepiece indicates to the wearer the power reserve available according to the number of winding turns of the mainspring.
  • the rotational drive of the needle 2 is carried out using two kinematic chains driven by a first and a second PTO, namely respectively the barrel plug and the external toothing of said cylinder or a mobile driven by this barrel.
  • the first kinematic chain also called the arming gear, is generally designated by the general numerical reference 6. This first kinematic chain 6 meshes with a first input 8 of a differential gear 10.
  • the second kinematic chain also called disarming gear, is generally designated by the general numerical reference 12.
  • This second kinematic chain 12 meshes with a second input 14 of the aforementioned differential gear 10.
  • the output 16 of the differential gear 10 meshes with a third kinematic chain 18 also called display gear which drives the display needle 2 in rotation.
  • an armature return Z T is driven on the barrel shaft (not shown) of the watch.
  • the armature return Z T is engaged with an intermediate armoring device 20 comprising an intermediate arm gear Z R driven on the axis of rotation 22 of an intermediate winding wheel Z S.
  • the intermediate mobile armature 20 in turn drives, via its pinion Z R, an intermediate reinforcement deflection Z Q driven on an axis of rotation 24.
  • Said return Z Q then meshes with the first input 8 of the differential gear 10.
  • This first input 8 is constituted by a satellite input mobile 26 comprising a satellite input pinion Z 1 driven on a satellite input wheel Z P.
  • the satellite input pinion Z 1 drives two planet gears Z 2 which, in turn, meshes with the internal toothing Z 3 of a differential ring 28.
  • the two planet gears Z 2 are freely adjusted on axes of rotation 30 carried by a Z 4 satellite output return.
  • the latter consists of an intermediate display carriage 32 comprising an intermediate display gear Z 6 driven on an intermediate display wheel Z 5 .
  • the intermediate display unit 32 disposed at the output 16 of the differential gearing 10, is rotated by the satellite output gearbox Z 4 .
  • said intermediate display unit 32 meshes with its Z 6 pinion gear with a power reserve display wheel Z RM on the axis 34 from which the display member 2 is driven.
  • the disarming gear 12 includes a disengagement gear Z E which meshes with a second power take-off formed by the external toothing of the barrel or by a mobile driven by this barrel (not shown).
  • the disengagement referral Z E is engaged with an intermediate disarming mobile 36 which comprises an intermediate disengagement gear Z C driven on the axis of rotation of an intermediate disassembly wheel Z D.
  • the intermediate mobile disarming 36 in turn drives by its pinion Z C an intermediate disengagement Z B.
  • Said reference Z B then meshes with the second input 14 of the differential gear 10.
  • This second input 14 is constituted by the external toothing Z A of the differential gear 28.
  • the disengagement return Z E is rotated by the external toothing of the cylinder or by a mobile which meshes with said external toothing.
  • the disengagement gear Z E meshes with the wheel Z D of the disarming intermediate wheel 36, the pinion Z C of which is engaged with the intermediate disengagement gear Z B.
  • Said reference Z B then meshes with the external toothing Z A of the differential ring gear 28.
  • the differential ring gear 28 drives the two planet gears Z 2 by its internal toothing Z 3 .
  • the gear train 6 does not turn.
  • the satellite input wheel Z P and the satellite input gear Z 1 driven on said wheel Z P are stationary.
  • the two planet gears Z 2 driven in rotation by the internal teeth Z 3 of the differential ring 28, thus rotate on themselves around their respective axes 30 and roll on the satellite input pinion Z 1 which is fixed. .
  • the satellite output Z 4 carries the two satellite gears Z 2 , it is rotated by said planet gears Z 2 .
  • the Z satellite output junction 4 meshes with the intermediate display carriage 32, the Z 6 pinion drives the power reserve display wheel Z RM and the display needle 2 which is integral with said display wheel Z RM .
  • the display needle 2 thus performs an angular displacement as a function of the power reserve which can still be provided by the winding of the mainspring.
  • the barrel shaft causes the winding return Z T to rotate.
  • the return winding T Z S Z meshes with the wheel of the movable intermediate winding 20 whose Z R pinion meshes with the intermediate wheel winding Z Q.
  • Said return Z Q then meshes with the satellite input wheel Z P.
  • the satellite input gear Z 1 which rotates at the same time as said satellite input wheel Z P drives the planet gears Z 2 in rotation.
  • the disarming gear 12 is substantially stationary. Therefore, the differential ring 28 with its outer teeth Z A and inner Z 3 does not turn.
  • the two planet gears Z 2 driven in rotation by the satellite input pinion Z 1 , thus turn on themselves around their respective axes 30 and roll on the internal toothing Z 3 of the differential ring 28 which is fixed. .
  • the satellite output Z 4 carries the two planet gears Z 2 , it is rotated by said planet gears Z 2 in the opposite direction to the previous one.
  • the Z satellite output junction 4 meshes with the intermediate display carriage 32 whose Z pinion 6 drives the power reserve display wheel Z RM and the display needle 2 which is connected to said display wheel Z RM .
  • the display needle 2 thus makes an angular displacement in the opposite direction to the previous one as a function of the power reserve provided by the number of winding turns of the mainspring.
  • the differential gear 10 is positioned in the center of the movement, on the hour wheel 38. This advantageously allows to distribute the display of the power reserve indication on all positions of the dial indifferently, and to adapt to the aesthetics of the dial of the watch. Furthermore, since the differential gearing 10 is disposed at the center of the movement, it is possible to make it with larger geometric dimensions than if it were housed at the periphery of the housing, hence a greater simplicity of manufacture.
  • gear train 6 and the disarming gear train 12 constitute two perfectly distinct gear trains offers the person skilled in the art the possibility of adapting the mechanism according to the present invention to a large number of movements. different.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Retarders (AREA)
  • Gears, Cams (AREA)
  • Electromechanical Clocks (AREA)
  • Gear Transmission (AREA)
  • Electric Clocks (AREA)

Claims (9)

  1. Gangreserve-Anzeigevorrichtung (1) für ein Zeitmessgerät mit manuellem oder automatischem Aufzug, wobei das Zeitmessgerät ein Federgehäuse, eine in diesem Federgehäuse befindliche Feder und Uhrzeit-Anzeigeorgane, die mit dem Federgehäuse mechanisch gekoppelt sind, umfasst, wobei die Anzeigevorrichtung (1) ein Differenzialgetriebe (10) aufweist, wovon ein erster Eingang (8) durch ein Aufzugräderwerk (6) angetrieben wird, das mit einer durch den Federkern gebildeten ersten Zapfwelle kämmt, wobei der Ausgang (16) des Differenzialgetriebes (10) ein Anzeigeräderwerk (18) antreibt, um die garantierte Gangreserve anhand der Anzahl von Umdrehungen der Aufzugfeder des Federgehäuses anzugeben, wobei der zweite Eingang (14) des Differenzialgetriebes (10) durch ein Entspannungsräderwerk (12) angetrieben wird, das mit einer zweiten Zapfwelle kämmt, die durch die Außenzahnung des Federgehäuses oder durch ein durch dieses Federgehäuse angetriebenes bewegliches Element gebildet ist, dadurch gekennzeichnet, dass das Differenzialgetriebe (10) ein Tellerrad (28) umfasst, das eine Innenzahnung (Z3) sowie ein oder zwei mit der Innenzahnung (Z3) kämmende Satellitenritzel (Z2) aufweist, wobei das Tellerrad (28) außerdem eine Außenzahnung (ZA) aufweist, die den zweiten Eingang (14) des Differenzialgetriebes (10) bildet.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Differenzialgetriebe (10) im Zentrum des Uhrwerks auf dem Stundenrad (38) positioniert ist.
  3. Vorrichtung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass das Differenzialgetriebe (10) außerdem ein bewegliches Satelliteneingangselement (26) umfasst, das ein Satelliteneingangsritzel (Z1) aufweist, das auf ein Satelliteneingangsrad (Zp) getrieben ist.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das oder die Satellitenritzel (Z2) von einem Satellitenausgangsvorgelege (Z4) getragen werden.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Aufzugräderwerk (6) ein Aufzugvorgelege (ZT) umfasst, das auf die Federgehäusewelle getrieben ist, wobei dieses Aufzugvorgelege (ZT) mit einem beweglichen Zwischenaufzugelement (20) in Eingriff ist, das ein Aufzugzwischenritzel (ZR) aufweist, das auf die Drehwelle (22) eines Aufzugzwischenrades (ZS) getrieben ist, wobei das bewegliche Aufzugzwischenelement (20) seinerseits durch sein Ritzel (ZR) ein Aufzugzwischenvorgelege (ZQ) antreibt.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Entspannungsräderwerk (12) ein Entspannungsvorgelege (ZE) umfasst, das mit der Außenzahnung des Federgehäuses oder mit einem durch dieses Federgehäuse angetriebenen beweglichen Element kämmt, wobei das Entspannungsvorgelege (ZE) mit einem beweglichen Entspannungszwischenelement (36) in Eingriff ist, das ein Entspannungszwischenritzel (ZC) aufweist, das auf die Drehwelle eines Entspannungszwischenrades (ZD) getrieben ist, wobei das bewegliche Entspannungszwischenelement (36) seinerseits durch sein Ritzel (ZC) ein Entspannungszwischenvorgelege (ZB) antreibt.
  7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Anzeigeräderwerk (18) ein bewegliches Anzeigezwischenelement (32) umfasst, das ein Anzeigezwischenritzel (Z6) aufweist, das auf ein Anzeigezwischenrad (Z5) getrieben ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Anzeigeräderwerk (18) ein Gangreserveanzeigerad (ZRM) antreibt, auf dessen Drehwelle (34) ein Gangreserveanzeigeorgan (2) getrieben ist.
  9. Anzeigevorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass das Gangreserveanzeigeorgan (2) ein Zeiger ist.
EP99115389A 1999-08-04 1999-08-04 Vorrichtung zur Anzeige der Gangreserve einer Uhr Expired - Lifetime EP1074897B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT99115389T ATE428958T1 (de) 1999-08-04 1999-08-04 Vorrichtung zur anzeige der gangreserve einer uhr
EP99115389A EP1074897B1 (de) 1999-08-04 1999-08-04 Vorrichtung zur Anzeige der Gangreserve einer Uhr
DE69940727T DE69940727D1 (de) 1999-08-04 1999-08-04 Vorrichtung zur Anzeige der Gangreserve einer Uhr
ES99115389T ES2325232T3 (es) 1999-08-04 1999-08-04 Dispositivo indicador de reserva de marcha para una pieza de relojeria.
US09/631,381 US6685352B1 (en) 1999-08-04 2000-08-03 Timepiece power reserve indicator device
JP2000236689A JP4671477B2 (ja) 1999-08-04 2000-08-04 時計のパワー保持量表示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99115389A EP1074897B1 (de) 1999-08-04 1999-08-04 Vorrichtung zur Anzeige der Gangreserve einer Uhr

Publications (2)

Publication Number Publication Date
EP1074897A1 EP1074897A1 (de) 2001-02-07
EP1074897B1 true EP1074897B1 (de) 2009-04-15

Family

ID=8238721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115389A Expired - Lifetime EP1074897B1 (de) 1999-08-04 1999-08-04 Vorrichtung zur Anzeige der Gangreserve einer Uhr

Country Status (6)

Country Link
US (1) US6685352B1 (de)
EP (1) EP1074897B1 (de)
JP (1) JP4671477B2 (de)
AT (1) ATE428958T1 (de)
DE (1) DE69940727D1 (de)
ES (1) ES2325232T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9477206B2 (en) 2014-11-13 2016-10-25 Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Split-seconds device with epicycloidal train for a timepiece

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US7387253B1 (en) * 1996-09-03 2008-06-17 Hand Held Products, Inc. Optical reader system comprising local host processor and optical reader
EP1260883A1 (de) * 2001-05-22 2002-11-27 Parmigiani Mesure et Art du Temps SA Vorrichtung zur Anzeige der Gangreserve einer Uhr
EP1562086B1 (de) * 2004-02-04 2011-11-23 Vaucher Manufacture Fleurier S.A. Vorrichtung zur Gängreserveanzeigung
JP4622274B2 (ja) * 2004-03-11 2011-02-02 セイコーエプソン株式会社 ぜんまい残量表示機構および時計
ATE421718T1 (de) * 2006-02-22 2009-02-15 Blancpain Sa Selbstaufzuguhr mit einem gangreserveanzeiger
CH699021B1 (fr) * 2006-03-17 2010-01-15 Bnb Concept Sa Module de base pour pièce d'horlogerie, notamment montre-bracelet.
EP1914604A1 (de) * 2006-10-19 2008-04-23 Girard-Perregaux S.A. Uhr mit Kraftübertragung mit konstantem Drehmoment zwischen der Kraftquelle und dem mechanischen Oszillator
ATE443282T1 (de) 2007-03-13 2009-10-15 Montres Breguet Sa Uhr mit anzeige der gangreserve
CH701173B1 (fr) 2007-05-25 2010-12-15 Mps Micro Prec Systems Ag Différentiel à billes, notamment pour un indicateur de réserve de marche d'un mouvement horloger mécanique.
US8550701B2 (en) * 2007-11-09 2013-10-08 Eterna Ag Uhrenfabrik Mechanical watch having constant spring force
EP2544055B1 (de) * 2011-07-07 2017-11-08 Blancpain S.A. Anzeige einer physikalischen Größe auf einem Uhranzeigeträger
EP2615506B1 (de) * 2012-01-10 2014-06-25 Montres Breguet SA Vorrichtung zur Schnellkorrektur eines Anzeigesystems
CH707136B1 (fr) 2012-10-30 2016-12-30 Parmigiani Fleurier S A Pièce d'horlogerie destinée à indiquer la réserve de marche.
EP2977828B1 (de) * 2014-07-21 2017-08-30 ETA SA Manufacture Horlogère Suisse Anzeige der Gangreserve einer Uhr
EP3018535B1 (de) * 2014-11-07 2018-09-05 Montres Breguet SA Aufziehvorrichtung mit unidirektionaler Antriebsanordnung
CN106502076B (zh) * 2015-09-07 2017-12-22 天津海鸥表业集团有限公司 一种动力储备的显示机构
EP3306415B1 (de) * 2016-10-04 2020-05-20 ETA SA Manufacture Horlogère Suisse Mechanisches uhrwerk mit erfassung der gangreserve
EP3627233B1 (de) * 2018-09-19 2022-03-30 ETA SA Manufacture Horlogère Suisse Anzeigemechanismus der gangreserve einer uhr
JP7327180B2 (ja) * 2020-01-27 2023-08-16 セイコーエプソン株式会社 時計

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9477206B2 (en) 2014-11-13 2016-10-25 Société Anonyme de la Manufacture d'Horlogerie Audemars Piguet & Cie Split-seconds device with epicycloidal train for a timepiece

Also Published As

Publication number Publication date
JP2001074856A (ja) 2001-03-23
DE69940727D1 (de) 2009-05-28
JP4671477B2 (ja) 2011-04-20
ATE428958T1 (de) 2009-05-15
EP1074897A1 (de) 2001-02-07
US6685352B1 (en) 2004-02-03
ES2325232T3 (es) 2009-08-28

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