EP1139182A1 - Anzeigemechanismus der Gangreserve einer Uhr und mit diesem Mechanismus versehene Uhr - Google Patents

Anzeigemechanismus der Gangreserve einer Uhr und mit diesem Mechanismus versehene Uhr Download PDF

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Publication number
EP1139182A1
EP1139182A1 EP00106573A EP00106573A EP1139182A1 EP 1139182 A1 EP1139182 A1 EP 1139182A1 EP 00106573 A EP00106573 A EP 00106573A EP 00106573 A EP00106573 A EP 00106573A EP 1139182 A1 EP1139182 A1 EP 1139182A1
Authority
EP
European Patent Office
Prior art keywords
indicator
mainspring
mobile
elastic member
wheel
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
EP00106573A
Other languages
English (en)
French (fr)
Other versions
EP1139182B1 (de
Inventor
M. Sébastien Jeanneret
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.)
Vaucher Manufacture Fleurier SA
Original Assignee
Parmigiani Mesure et Art du Temps 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 Parmigiani Mesure et Art du Temps SA filed Critical Parmigiani Mesure et Art du Temps SA
Priority to DE60036603T priority Critical patent/DE60036603T2/de
Priority to EP00106573A priority patent/EP1139182B1/de
Priority to US09/817,453 priority patent/US6340241B2/en
Priority to JP2001091174A priority patent/JP4508451B2/ja
Publication of EP1139182A1 publication Critical patent/EP1139182A1/de
Application granted granted Critical
Publication of EP1139182B1 publication Critical patent/EP1139182B1/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
    • G04B9/00—Supervision of the state of winding, e.g. indicating the amount of winding

Definitions

  • the present invention relates to reserve indicator mechanisms step for movement of a timepiece of the type provided with a source of energy formed by a mainspring.
  • the mechanism according to the invention comprises a frame, a power reserve indicator and a differential gear with a first input connected to a driven mobile in rotation during winding of the mainspring, a second input connected to a mobile driven in rotation during the disarming of the mainspring, and a output connected to the power reserve indicator.
  • the indicator is likely to travel a given angle between two extreme positions, the first of which is occupied when the mainspring is armed and the second, defined by a stop, when the mainspring is disarmed.
  • a mechanism of this type is described in "The Swiss winding watch automatic "by B. Humbert, Scriptar edition, Lausanne 1955, on page 85. It is fitted with an indicator mounted frictionally on a mobile connected to the outlet of the differential. The indicator moves between two defined extreme positions by stops. When the indicator arrives at one of the stops, from the limit upper arm or disarm of the mainspring, it remains stationary while the mainspring continues to be armed or disarmed, the friction allowing movement of the gear train while the indicator is fixed.
  • the mechanism according to the invention is characterized in that a mobile intermediate is interposed between the output of the differential gear and the indicator and has an elastic member and two coaxial parts one formed by a wheel, the other by a shaft, one connected to the gear differential, the other to the indicator and to each other by the elastic member, the mobile being arranged so that the two parts rotate jointly as long as the indicator occupies a position between the two extreme positions and in that, at least when the indicator occupies in its second extreme position, the differential gear continues to rotate freely while the indicator remains in abutment and the elastic member arms as long as the mainspring drives the movement.
  • the first organ elastic comprises a cam, integral in rotation with the shaft of the mobile intermediate, and a radially deformable spring rigidly fixed by one of its ends to the wheel of the intermediate mobile.
  • This cam cooperates with the free end of this spring. The whole is arranged so as to that the free end of the spring slides on the cam when the indicator is in stop and the mainspring continues to disarm and generates a torque opposite to that exerted by the mainspring.
  • each position of the indicator corresponds to a level of arming of the mainspring.
  • the part can continue to operate when the indicator has reached the lower limit. The user is, however, informed that the accuracy of his watch is likely to have been affected by insufficient engine torque, leading to a loss of amplitude of the pendulum.
  • the mechanism according to the invention advantageously comprises a second elastic member arranged to exert a permanent torque on the train of gears comprised between the two inputs of the differential gear and the mobile intermediate
  • the second elastic member comprises a shaft rigidly fixed to the frame, a drum provided, at its periphery, a toothing which meshes with the part of the mobile connected to the indicator, and a leaf spring arranged in the drum and fixed by one of its ends to the shaft of the second elastic member and, by the other to the drum.
  • the second elastic organ can result more or less significant fluctuations in the amplitude of the pendulum.
  • the mainspring must arm the second elastic member as and as it disarms itself, the useful torque decreases accordingly.
  • the winding torque increases as the mainspring disarms. This is why, in order to ensure an optimal amplitude of the balance, the second elastic member is arranged so that it arms and disarms simultaneously with the mainspring.
  • Such a mechanism is particularly well suited to equip a watch comprising a motor spring ensuring an 8-day power reserve.
  • the mechanism according to the invention is associated with a watch movement such only partially shown in the drawing.
  • This movement includes, conventionally, a chassis formed by a plate 10 and several bridges fixed on this plate 10, three of which are visible in the drawing, i.e. a bridge of barrel 12 ( Figure 2), a differential bridge 14 ( Figures 2 and 3) and a bridge power reserve indicator 16 ( Figures 3 and 4).
  • the plate and the bridges are intended to support and position the various mobile components of the movement.
  • this movement has a source of energy formed by a barrel 18, which comprises a drum 20, a cover 22, a shaft 24 and a motor spring schematically shown at 26.
  • the mainspring 26 is arranged inside the drum and fixed, in a conventional manner, to the wall of the drum by one of its ends and to the tree by the other.
  • the drum 20 is closed by the cover 22 which is fixed to notch in a drum groove, not referenced to avoid overloading the drawing.
  • the drum 20 and the cover 22 together form a movable assembly rotating on the shaft 24.
  • the shaft 24 pivots, on the one hand, in the plate 10, on the other hand in the bridge of barrel 12. It carries, on a square 24a and beyond the bridge 12, a wheel with ratchet 28 provided, at its periphery, with teeth 28a. His training in rotation, by means of a winding crown, which has not been shown, ensures the winding of the mainspring 26.
  • the drum 20 is provided, at its periphery, with a toothing 20a intended to drive the gear train which is not shown in the drawing either.
  • the mechanism according to the invention comprises a reference 29, a differential 30 pivotally mounted between the plate 10 and the differential bridge 14, a mobile intermediate 32 and an indicator mobile 34 (Figure 3).
  • the differential 30 comprises a shaft 36, a planet carrier 38 on which are mounted a satellite 40, a first input wheel 42 and a second input wheel 44, two assembly rings 46 and 48 and a screw 50.
  • the shaft 36 is formed of a steel rod, one end of which has a toothing forming a pinion 36a. It has two intermediate portions 36b and 36c, and a pivot 36d occupying the other end and engaged mobile in rotation in a stone 52 driven into bridge 14. It can rotate around an axis perpendicular to the plane of the plate 10.
  • the satellite carrier 38 is formed of a metal part provided with a hole central 38a cylindrical. He is chased on the tree 36, which is engaged by his portion 36c in hole 38a. It has, in its middle part, a cylindrical protrusion 38b extending radially and provided with a hole tapped 38c intended to receive the screw 50. It further comprises two portions cylindrical 38d and 38e, coaxial with hole 38a.
  • the protuberance 38b carries the satellite 40 which can rotate freely around an axis perpendicular to the axis of rotation of the shaft 36.
  • This satellite 40 is provided with a conical toothing 40a whose function will be specified below.
  • the two cylindrical portions 38d and 38e respectively carry the wheels 42 and 44, adjusted so that they can rotate freely. These wheels are disposed between the protuberance 38b and the rings 46 and 48 respectively.
  • the wheels 42 and 44 are each formed by a board, identified by the letter a and the periphery of which carries a toothing b , and a pinion c provided with a conical toothing d .
  • the wheel 42 meshes, by its toothing 42b, with the toothing of the barrel 20a.
  • the wheel 44 meshes, by its toothing 44b, with the reference 29, which meshes with the toothing 28a of the ratchet wheel 28 (FIG. 2).
  • the teeth 42d of the pinion 42c and 44d of the pinion 44c are engaged with the teeth 40a of the satellite 40 (FIG. 3).
  • gear ratios between the teeth 20a of the drum barrel and the first input wheel 42, on the one hand, and that of the wheel to ratchet 28 and second input wheel 44, on the other hand, must be equal, so that, for the same angle traversed by the barrel and the wheel to ratchet, the wheels 42 and 44 travel at equal angles.
  • the ring 46 is formed of a plate 46a and a sleeve 46b. She is engaged on the portion 36b of the shaft 36 and bearing against the pinion 36a by the end of the sleeve 46b. The latter is engaged, by its surface outside, in a stone 54 driven into plate 10. Plate 46a stop form for the satellite carrier 38.
  • the ring 48 formed of a round plate pierced in its center, is driven out by force on the end of the portion 36c of the shaft 36. With the ring 46, it ensures the assembly of all the parts forming the differential 30.
  • the intermediate mobile 32 is pivotally mounted on the plate 10 by means of a tigeron 56. It essentially comprises a pinion 58, a wheel 60, a cam 62 and a connecting spring 64.
  • the pinion 58 comprises a sleeve 58a pivotally mounted on the tigeron 56. It is provided, at one of its ends, with a toothing 58b.
  • the sleeve 58a is formed of two cylindrical portions 58c and 58d, of different outside diameters.
  • the wheel 60 is formed of a board whose periphery is provided with a toothing 60a, which meshes with the teeth 36a of the pinion 36. It is mounted to rotate freely on portion 58c.
  • the board has an oblong orientation hole radial 60c whose function will be specified later.
  • the cam 62 has a shape close to that of a chronograph heart, with a concave portion 62a and two adjoining bosses which have not been references. It is driven out on the cylindrical portion 58d and maintains axially the wheel 60.
  • the spring 64 is formed by an elastic blade in an arc of a circle embracing a angle of about 270 °. It is fixed, by one of its ends and so known to the plate of the wheel 60. The other end forms a protuberance 64a arranged so that it is in abutment against the cam 62, in its concave portion 62a. A finger 64b, arranged in the middle part of the protuberance 64a, is engaged in hole 60c.
  • the indicator mobile 34 is pivotally mounted on a pin 66 driven into the plate 10. It comprises a plate 34a provided, at its periphery, with a toothing 34b in engagement with the toothing 58b of the pinion 58, and a barrel 34c extending beyond the stage and intended to carry an indicator needle power reserve, not shown in the drawing.
  • Plate 34a has a cutout 34d in the form of an annular sector embracing an angle of about 150 °.
  • a pin 78, driven into the plate 10, is engaged in the cutout 34d and serves as a stop for the mobile 34.
  • the motor spring 26, disarming rotates and in a conventional manner the barrel drum 20, the toothing 20a of which meshes with the first mobile in the gear train.
  • the latter is connected to a escapement, which maintains the movement of a balance-spring.
  • the shaft 24 is, however, immobile.
  • the wheel 42 of the differential 30 is therefore driven in rotation, while the wheel 44 remains fixed.
  • the pinion 42c which rotates with the wheel 42, meshes with satellite 40.
  • the satellite 40 does not can rotate only by driving the satellite carrier 38.
  • the latter which carries the pinion 36a, rotates the intermediate mobile 32, itself driving the mobile indicator 34.
  • the mobile indicator 34 moves opposite a scale arranged on the dial of the shows, until reaching the lower limit of normal operation. In below this limit, the movement can still function during a time. However, its accuracy is likely to decrease, due to loss of amplitude of the pendulum.
  • the power reserve indicator indicates so that it is exhausted and the indicator mobile 34 is immobilized, the end of the cut 34d being in abutment against the pin 78.
  • the mainspring 26 When the user of the watch winds up the mainspring 26 by turning the winding crown, it drives the ratchet wheel 28 and, by via the reference 29, the input wheel 44. The latter rotates the planet carrier 38 in the opposite direction to that generated by the movement of the drum 20. As a result, the pinion 36a rotates the wheel 60 so that the protrusion 64a slides in the opposite direction on the cam 62 until it finds the concave portion 62a. That's when the pinion 58 is again driven and, with it, the indicator wheel 34, so as the indicator moves opposite the scale of the dial. This indicator reaches the upper end of this scale when the mainspring 26 is fully armed.
  • the mechanism as described involves a gear train whose mobile phones must have a sufficient play between them to avoid any jamming during operation. Because of this frolic, the position of the indicator does not correspond to the same degree of winding of the mainspring, depending on whether it is being armed or disarmed. It also results that at the start of the arming operation by the user, the latter does not see the indicator to move only after the set of gears has been taken, which gives the impression that the mechanism is not working as it should.
  • the device shown in Figure 4 eliminates this defect
  • the mechanism according to the invention comprises, advantageously, a complementary elastic member 66 intended to generate torque on the gear train leading to the needle of power reserve indicator, in order to eliminate this jagged gears.
  • the member 66 is formed of a barrel comprising a drum 68, a cover 70, a shaft 72 and a spring 74. It is fixed to a tigeron 76 secured to the platinum 10.
  • the drum 68 and the cover 70 together form a housing in which is the spring 74.
  • the latter is connected, in a conventional manner, by one of its ends to the shaft 72 and the other to the drum 68. It is arranged so that it arms and disarms at the same time as the mainspring 26.
  • the drum 68 is provided with a toothing 68a at its periphery, in engagement with the teeth 60a of the wheel 60.
  • the shaft 72 is rigidly mounted on the tigeron 76, so that it cannot rotate.
  • the member 66 exerts a permanent torque on the train gears comprised between the two input wheels 42 and 44 of the differential 30 and the intermediate mobile 32.
  • the mechanism according to the invention is particularly well suited to watches with manual winding, in particular with so-called 8-day watches, that is to say those whose mainspring allows a running autonomy of more than one week. It is also applicable in automatic watches fitted a stop system blocking the winding of the mainspring when it is fully armed.
  • the differential can be flat rather that spherical. It is also possible to apply the mechanism to a watch movement comprising two barrels.
  • the wheels differential input can be kinematically connected to the wheel at ratchet of one of the barrels and to the drum of the other or of the same barrel.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP00106573A 2000-03-27 2000-03-27 Anzeigemechanismus der Gangreserve einer Uhr und mit diesem Mechanismus versehene Uhr Expired - Lifetime EP1139182B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60036603T DE60036603T2 (de) 2000-03-27 2000-03-27 Anzeigemechanismus der Gangreserve einer Uhr und mit diesem Mechanismus versehene Uhr
EP00106573A EP1139182B1 (de) 2000-03-27 2000-03-27 Anzeigemechanismus der Gangreserve einer Uhr und mit diesem Mechanismus versehene Uhr
US09/817,453 US6340241B2 (en) 2000-03-27 2001-03-26 Power reserve indicator mechanism and watch fitted with such a mechanism
JP2001091174A JP4508451B2 (ja) 2000-03-27 2001-03-27 貯蔵動力表示器機構および該機構を備えた時計

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00106573A EP1139182B1 (de) 2000-03-27 2000-03-27 Anzeigemechanismus der Gangreserve einer Uhr und mit diesem Mechanismus versehene Uhr

Publications (2)

Publication Number Publication Date
EP1139182A1 true EP1139182A1 (de) 2001-10-04
EP1139182B1 EP1139182B1 (de) 2007-10-03

Family

ID=8168247

Family Applications (1)

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EP00106573A Expired - Lifetime EP1139182B1 (de) 2000-03-27 2000-03-27 Anzeigemechanismus der Gangreserve einer Uhr und mit diesem Mechanismus versehene Uhr

Country Status (4)

Country Link
US (1) US6340241B2 (de)
EP (1) EP1139182B1 (de)
JP (1) JP4508451B2 (de)
DE (1) DE60036603T2 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1562086A1 (de) * 2004-02-04 2005-08-10 Vaucher Manufacture Fleurier SA Vorrichtung zur Gängreserveanzeigung
CN101923313A (zh) * 2009-06-16 2010-12-22 莎麦普股份有限公司-埃米尔佩基奈特钟表 手表机芯用的差速齿轮
CH711005A1 (fr) * 2015-04-30 2016-10-31 Vaucher Mft Fleurier S A Pièce d'horlogerie comprenant un dispositif d'indication de réserve de marche.
EP3333637A1 (de) * 2016-12-12 2018-06-13 ETA SA Manufacture Horlogère Suisse Mechanisches uhrwerk mit erfassung der gangreserve

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1260883A1 (de) * 2001-05-22 2002-11-27 Parmigiani Mesure et Art du Temps SA Vorrichtung zur Anzeige der Gangreserve einer Uhr
EP1498789A1 (de) * 2003-07-14 2005-01-19 Eterna SA Vorrichtung zur Anzeige der Gangreserve einer mechanischen Uhr
JP4475630B2 (ja) * 2004-01-27 2010-06-09 セイコーインスツル株式会社 変形セグメント歯車を含むぜんまい巻き状態表示装置付き時計
EP2189854A1 (de) * 2008-11-21 2010-05-26 Nivarox-FAR S.A. Verfahren zur Herstellung eines mikromechanischen Bauteils
RU2473946C1 (ru) * 2011-08-10 2013-01-27 Общество с ограниченной ответственностью "Константин Чайкин" Механизм безостановочной работы часов в шаббат и часы с механизмом безостановочной работы часов в шаббат
EP2977828B1 (de) * 2014-07-21 2017-08-30 ETA SA Manufacture Horlogère Suisse Anzeige der Gangreserve einer Uhr
CN104460283B (zh) * 2014-12-22 2017-05-10 辽宁孔雀表业有限公司 一种机械手表示能结构
RU2596457C1 (ru) * 2015-06-10 2016-09-10 Константин Юрьевич Чайкин Часы с устройством индикации дня шаббата и способ осуществления индикации шаббата на часах
EP3627233B1 (de) * 2018-09-19 2022-03-30 ETA SA Manufacture Horlogère Suisse Anzeigemechanismus der gangreserve einer uhr
EP4343449A1 (de) 2022-09-26 2024-03-27 Oris Holding AG Gangreserve-anzeigevorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH89272A (fr) * 1919-09-11 1921-05-02 Paul Ditisheim S A Chronomètre de marine.
CH101207A (fr) * 1922-09-22 1923-09-17 Jeune M T Stauffer Dispositif indicateur de remontage pour pièces d'horlogerie.
CH263707A (fr) * 1947-11-27 1949-09-15 Le Coultre & Cie Montre-bracelet.

Family Cites Families (4)

* 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
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
JP3496544B2 (ja) * 1998-04-17 2004-02-16 セイコーエプソン株式会社 ゼンマイ装置および時計

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH89272A (fr) * 1919-09-11 1921-05-02 Paul Ditisheim S A Chronomètre de marine.
CH101207A (fr) * 1922-09-22 1923-09-17 Jeune M T Stauffer Dispositif indicateur de remontage pour pièces d'horlogerie.
CH263707A (fr) * 1947-11-27 1949-09-15 Le Coultre & Cie Montre-bracelet.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1562086A1 (de) * 2004-02-04 2005-08-10 Vaucher Manufacture Fleurier SA Vorrichtung zur Gängreserveanzeigung
WO2005085963A1 (fr) * 2004-02-04 2005-09-15 Vaucher Manufacture Fleurier S.A. Mecanisme indicateur de reserve de marche
US7684285B2 (en) 2004-02-04 2010-03-23 Vaucher Manufacture Fleurier S.A. Power reserve indicator mechanism
CN101923313A (zh) * 2009-06-16 2010-12-22 莎麦普股份有限公司-埃米尔佩基奈特钟表 手表机芯用的差速齿轮
EP2264551A1 (de) 2009-06-16 2010-12-22 Samep S.A. - Montres Emile Pequignet Differentialzahnradgetriebe für Uhrwerk
US8251574B2 (en) 2009-06-16 2012-08-28 Samep S.A.—Montres Emile Pequignet Differential gear for watch movement
CN101923313B (zh) * 2009-06-16 2013-03-20 莎麦普股份有限公司-埃米尔佩基奈特钟表 手表机芯用的差速齿轮
CH711005A1 (fr) * 2015-04-30 2016-10-31 Vaucher Mft Fleurier S A Pièce d'horlogerie comprenant un dispositif d'indication de réserve de marche.
EP3333637A1 (de) * 2016-12-12 2018-06-13 ETA SA Manufacture Horlogère Suisse Mechanisches uhrwerk mit erfassung der gangreserve
CN108227452A (zh) * 2016-12-12 2018-06-29 Eta瑞士钟表制造股份有限公司 具有动力储备检测的机械钟表机芯
US10444705B2 (en) 2016-12-12 2019-10-15 Eta Sa Manufacture Horlogere Suisse Mechanical timepiece movement with power reserve detection
CN108227452B (zh) * 2016-12-12 2019-12-17 Eta瑞士钟表制造股份有限公司 具有动力储备检测的机械钟表机芯

Also Published As

Publication number Publication date
JP4508451B2 (ja) 2010-07-21
DE60036603D1 (de) 2007-11-15
DE60036603T2 (de) 2008-07-03
US20010024405A1 (en) 2001-09-27
JP2001349962A (ja) 2001-12-21
US6340241B2 (en) 2002-01-22
EP1139182B1 (de) 2007-10-03

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