EP1074897A1 - Vorrichtung zur Anzeige der Gangreserve einer Uhr - Google Patents

Vorrichtung zur Anzeige der Gangreserve einer Uhr Download PDF

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Publication number
EP1074897A1
EP1074897A1 EP99115389A EP99115389A EP1074897A1 EP 1074897 A1 EP1074897 A1 EP 1074897A1 EP 99115389 A EP99115389 A EP 99115389A EP 99115389 A EP99115389 A EP 99115389A EP 1074897 A1 EP1074897 A1 EP 1074897A1
Authority
EP
European Patent Office
Prior art keywords
gear
barrel
disarming
display
winding
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
Application number
EP99115389A
Other languages
English (en)
French (fr)
Other versions
EP1074897B1 (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 device for indicating the reserve of step for a timepiece, i.e. a device allowing to indicate to the wearer the degree of development or winding of the spring barrel of a mechanical timepiece.
  • This indicator includes a walking gear which is integral with the wheel hours and whose axis constitutes the axis of a planar differential gear. Said walking gear drives a satellite gear which pivots on a plate and which on the other hand, meshes with the internal toothing of a differential crown.
  • This differential crown freely adjusted on a cylindrical core of the plate, includes an external toothing which meshes with a pinion of power reserve integral with the barrel shaft.
  • the hour wheel When the hour wheel turns, it drives the gable which meshes with the satellite gear.
  • the pinion satellite turns on itself around its axis and rolls on the teeth interior of said differential crown, which causes the rotation of the tray.
  • the tray itself supports an indicator disc which performs a angular displacement according to the power reserve which can still be ensured by winding the barrel spring.
  • the wheel of the hours, and therefore the walking gear remain substantially stationary.
  • the barrel shaft on which a pinion is mounted rotates.
  • This gable barrel shaft drives the differential crown by through a referral.
  • the differential crown meshes with its internal toothing with the satellite.
  • the satellite rolls on the gable and drives the rotating table.
  • the indicator disc supported by the plate, performs an angular displacement in the opposite direction to the previous one depending on the power reserve guaranteed by the number of winding turns of the barrel spring.
  • the power reserve indicator mechanism described above has serious drawbacks. Indeed, when setting the time of the watch, you have to block this mechanism so that the indication of the reserve is not distorted by the rotation of the hour wheel on which is fixed the walking gear. To remedy this problem, the patent CH 689 414 offers a fairly complex system in which the disc power reserve indicator is adjusted elastically on the tray. A time-setting spring moves under the action of the time-setting rod and requests a limitation pin which compresses the indicator disc against the frame, so that said indicator disc is no longer driven by the tray and remains stationary in the position it occupies. Such a construction, comprising several moving parts with respect to each other, is unreliable and can be easily damaged.
  • the object of the present invention is to remedy the problems and disadvantages above as well as to others still by proposing a device power reserve indicator for a timepiece having a low space and great simplicity of construction.
  • the present invention relates to a device for indicating power reserve for a timepiece with manual winding or automatic, said timepiece comprising a barrel, a spring housed in this barrel and mechanically coupled time display devices said barrel, said indicating device comprising a differential gear a first entry of which is driven by a gear train which engages with a first PTO formed by the barrel plug, the outlet said differential gear driving a display train to indicate the power reserve ensured by the number of winding turns of the spring barrel, characterized in that the second input of the differential gear is driven by a disarming cog which meshes with a second grip of force formed by the external toothing of said barrel or by a mobile driven by this barrel.
  • the present invention provides a device power reserve indicator comprising the cogs of armament and separate disarming, so that such a device can be easily integrated in a lot of different movements.
  • the gear differential is positioned in the center of the movement, on the hour wheel. This distributes the display of the power reserve to all positions of the dial indifferently, and to arrange the differential gear to inside the date disc. On the other hand, if the differential gear was not positioned in the center of the movement, it should be smaller, and would therefore be more difficult to achieve.
  • the differential gear is of simple planetary type whereas usually the gears differentials used in power reserve indicator mechanisms are of planetary type with double satellite and double central pinion. This solution therefore makes it possible to obtain a flatter differential gear than by the past, which significantly reduces its size.
  • FIG. 1 and 2 partially illustrate a timepiece such as a wristwatch, equipped with a power reserve indicator device according to the present invention and designated as a whole by the general reference numeral 1.
  • the watch includes a watch movement fitted with a barrel (not shown) in which is housed a barrel spring (also not shown).
  • the movement can, depending on the case, be manual or automatic winding. In the latter case, a declutching mechanism must be provided to prevent not distort the power reserve indication when the barrel spring is fully armed and the flange slides into the barrel.
  • the power reserve indicator device 1 comprises a member rotary display formed, for example, by a power reserve hand 2.
  • This needle 2 as a function of the relative position it occupies with respect to a mark carried on dial 4 of the timepiece, indicates to the wearer the power reserve available depending on the number of winding turns of the barrel spring.
  • the rotary drive of the needle 2 is carried out using two kinematic chains driven by a first and a second take of force, namely respectively the barrel plug and the external toothing said barrel or a mobile driven by this barrel.
  • the first kinematic chain also called the cogwheel, is designated as a whole by the general reference numeral 6. This first kinematic chain 6 meshes with a first input 8 of a differential gear 10.
  • the second kinematic chain also called disarming cog, is designated as a whole by the general reference numeral 12.
  • This second kinematic chain 12 meshes with a second inlet 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 cog which drives the display hand 2 in rotation.
  • a gear return Z T is driven out of the barrel shaft (not shown) of the watch.
  • the armament return Z T is engaged with an intermediate armament mobile 20 comprising an intermediate armament pinion Z R driven out on the axis of rotation 22 of an intermediate armament wheel Z S.
  • the intermediate winding mobile 20 in turn drives its gear Z R an intermediate winding return Z Q driven on a rotation axis 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 satellite pinions Z 2 which, in turn, mesh with the internal toothing Z 3 of a differential crown 28.
  • the two satellite pinions Z 2 are freely adjusted on axes of rotation 30 carried by a satellite output return Z 4 .
  • this consists of an intermediate display mobile 32 comprising an intermediate display gear Z 6 driven on an intermediate display wheel Z 5 .
  • the intermediate display mobile 32 disposed at the output 16 of the differential gear 10, is rotated by the satellite output gear Z 4 .
  • said intermediate display mobile 32 meshes by its pinion Z 6 with a power reserve display wheel Z RM on the axis 34 from which the display member 2 is driven.
  • the disarming train 12 includes a disarming gear Z E which meshes with a second PTO formed by the external toothing of the barrel or by a mobile driven by this barrel (not shown).
  • the disarming gear Z E is engaged with an intermediate disarming mobile 36 which comprises an intermediate disarming pinion Z C driven on the axis of rotation of an intermediate disarming wheel Z D.
  • the intermediate disarming mobile 36 in turn drives by its pinion Z C an intermediate disarming gear Z B.
  • Said reference Z B then meshes with the second inlet 14 of the differential gear 10. This second inlet 14 is formed by the external toothing Z A of the differential crown 28.
  • the disarming return Z E is rotated by the external toothing of the barrel or by a mobile which meshes with said external toothing .
  • the disarming gear Z E meshes with the wheel Z D of the intermediate disarming mobile 36 whose pinion Z C is engaged with the intermediate disarming gear Z B.
  • Said reference Z B then meshes with the external toothing Z A of the differential crown 28.
  • the differential crown 28 drives by its internal toothing Z 3 the two planet gears Z 2 .
  • the winding train 6 does not rotate. Consequently, the satellite input wheel Z P and the satellite input gear Z 1 driven out on said wheel Z P are stationary.
  • the two satellite pinions Z 2 driven in rotation by the internal toothing Z 3 of the differential ring gear 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 reference Z 4 carries the two satellite pinions Z 2 , it is rotated by said satellite pinions Z 2 .
  • the satellite output return Z 4 meshes with the intermediate display mobile 32 whose pinion Z 6 drives the power reserve display wheel Z RM and the display needle 2 which is integral with said display wheel Z RM .
  • the display hand 2 thus performs an angular displacement as a function of the power reserve which can also be ensured by winding the barrel spring.
  • the barrel shaft causes the winding gear Z T to rotate.
  • the winding gear Z T meshes with the wheel Z S of the intermediate winding wheel 20 whose pinion Z R is engaged with the intermediate winding gear Z Q.
  • Said reference Z Q then meshes with the satellite input wheel Z P.
  • the satellite input pinion Z 1 which rotates at the same time as said satellite input wheel Z P drives the satellite pinions Z 2 in rotation.
  • the disarming train 12 is substantially stationary. Consequently, the differential ring gear 28 with its outer teeth Z A and inner teeth Z 3 does not rotate.
  • the two satellite pinions Z 2 driven in rotation by the satellite input pinion Z 1 , thus rotate on themselves around their respective axes 30 and roll on the internal toothing Z 3 of the differential crown 28 which is fixed .
  • the satellite output reference Z 4 carries the two satellite pinions Z 2 , it is rotated by said satellite pinions Z 2 in the opposite direction to the previous one.
  • the satellite output return Z 4 meshes with the intermediate display mobile 32 whose pinion Z 6 drives the power reserve display wheel Z RM and the display needle 2 which is linked to said display wheel Z RM .
  • the display hand 2 thus performs 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 barrel spring.
  • the differential gear 10 is positioned in the center of the movement, on the hour wheel 38. This allows advantageously to distribute the display of the reserve indication of works on all positions of the dial indifferently, and to adapt as well as the aesthetics of the watch face.
  • the gear differential 10 is placed in the center of the movement, it is possible to achieve with larger geometric dimensions than if it were housed at the periphery of the housing, hence greater simplicity of manufacture.
  • winding gear 6 and the disarming gear 12 constitute two trains of gears perfectly distinct offers to the man the possibility of adapting the mechanism in accordance with this invention with a large number of different movements.

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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)
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 true EP1074897A1 (de) 2001-02-07
EP1074897B1 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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1826633A1 (de) * 2006-02-22 2007-08-29 Frédéric Piguet S.A. Selbstaufzuguhr mit einem Gangreserveanzeiger
EP1995649A2 (de) 2007-05-25 2008-11-26 MPS Micro Precision Systems AG Kugeldifferential, insbesondere für Gangreserveanzeige eines mechanischen Uhrwerks
US7490977B2 (en) 2007-03-13 2009-02-17 Montres Breguet S.A. Timepiece including a power reserve indicator device
CN101855601B (zh) * 2007-11-09 2012-07-04 绮年华钟表制造股份公司 具有恒定发条力的机械手表
WO2014068375A1 (fr) 2012-10-30 2014-05-08 Parmigiani Fleurier S.A. Piece d'horlogerie destinee a indiquer la reserve de marche
CN105301941A (zh) * 2014-07-21 2016-02-03 Eta瑞士钟表制造股份有限公司 用于钟表的能量储备指示器
CN105589320A (zh) * 2014-11-07 2016-05-18 蒙特雷布勒盖股份有限公司 具有单向驱动机构的上条装置
CN106502076A (zh) * 2015-09-07 2017-03-15 天津海鸥表业集团有限公司 一种动力储备的显示机构

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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
CH710362A1 (fr) 2014-11-13 2016-05-13 Société Anonyme De La Mft D'horlogerie Audemars Piguet & Cie Dispositif de rattrapante à train épicycloïdale pour pièce d'horlogerie.
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH13340A (fr) 1896-11-18 1897-06-30 Ernest Antoine Dispositif indicateur du degré de développement ou de remontage du ressort de barillet des montres et autres pièces d'horlogerie à longue marche
US2774252A (en) * 1954-09-04 1956-12-18 Felsa S A Differential gear
US3357174A (en) * 1964-12-10 1967-12-12 Zenith Montres Watch with automatic winding
CH617815GA3 (de) * 1978-09-04 1980-06-30

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698066A (en) * 1952-07-18 1954-12-28 Elgin Nat Watch Co Power reserve indicator
US3901021A (en) * 1973-06-25 1975-08-26 Citizen Watch Co Ltd Automatic winding watch
JP2757147B2 (ja) * 1995-07-07 1998-05-25 セイコーインスツルメンツ株式会社 ぜんまい動力蓄積量表示付き機械式時計
CH690973A5 (fr) * 1996-12-19 2001-03-15 Asulab Sa Pièce d'horlogerie dont le mécanisme est entraîné par des moyens mécaniques et comprenant un dispositif d'indication de réserve de marche.
JPH11183642A (ja) * 1997-12-22 1999-07-09 Seiko Instruments Inc ぜんまい巻き状態表示装置付き時計
JPH11183643A (ja) * 1997-12-25 1999-07-09 Seiko Instruments Inc パワーリザーブ機構およびパワーリザーブ機構の表示ユニット

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH13340A (fr) 1896-11-18 1897-06-30 Ernest Antoine Dispositif indicateur du degré de développement ou de remontage du ressort de barillet des montres et autres pièces d'horlogerie à longue marche
US2774252A (en) * 1954-09-04 1956-12-18 Felsa S A Differential gear
US3357174A (en) * 1964-12-10 1967-12-12 Zenith Montres Watch with automatic winding
CH617815GA3 (de) * 1978-09-04 1980-06-30

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7857502B2 (en) 2006-02-22 2010-12-28 Blancpain S.A. Self-winding watch including an indicator of the power reserve
WO2007095767A2 (fr) * 2006-02-22 2007-08-30 Frederic Piguet S.A. Montre a remontage automatique comprenant une indication de la reserve de marche
WO2007095767A3 (fr) * 2006-02-22 2007-11-15 Piguet Frederic Sa Montre a remontage automatique comprenant une indication de la reserve de marche
EP1826633A1 (de) * 2006-02-22 2007-08-29 Frédéric Piguet S.A. Selbstaufzuguhr mit einem Gangreserveanzeiger
CN101390021B (zh) * 2006-02-22 2010-08-18 布朗潘有限公司 包括运行备用指示的自动上链表
US7490977B2 (en) 2007-03-13 2009-02-17 Montres Breguet S.A. Timepiece including a power reserve indicator device
EP1995649A2 (de) 2007-05-25 2008-11-26 MPS Micro Precision Systems AG Kugeldifferential, insbesondere für Gangreserveanzeige eines mechanischen Uhrwerks
CN101855601B (zh) * 2007-11-09 2012-07-04 绮年华钟表制造股份公司 具有恒定发条力的机械手表
WO2014068375A1 (fr) 2012-10-30 2014-05-08 Parmigiani Fleurier S.A. Piece d'horlogerie destinee a indiquer la reserve de marche
CN105301941A (zh) * 2014-07-21 2016-02-03 Eta瑞士钟表制造股份有限公司 用于钟表的能量储备指示器
CN105301941B (zh) * 2014-07-21 2018-02-02 Eta瑞士钟表制造股份有限公司 用于钟表的能量储备指示器
CN105589320A (zh) * 2014-11-07 2016-05-18 蒙特雷布勒盖股份有限公司 具有单向驱动机构的上条装置
CN105589320B (zh) * 2014-11-07 2018-04-13 蒙特雷布勒盖股份有限公司 具有单向驱动机构的上条装置
CN106502076A (zh) * 2015-09-07 2017-03-15 天津海鸥表业集团有限公司 一种动力储备的显示机构

Also Published As

Publication number Publication date
JP2001074856A (ja) 2001-03-23
DE69940727D1 (de) 2009-05-28
EP1074897B1 (de) 2009-04-15
JP4671477B2 (ja) 2011-04-20
ATE428958T1 (de) 2009-05-15
US6685352B1 (en) 2004-02-03
ES2325232T3 (es) 2009-08-28

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