EP0531895A1 - Vorrichtung für die Einwegkorrektur der Zeitanzeige in einer Uhr - Google Patents

Vorrichtung für die Einwegkorrektur der Zeitanzeige in einer Uhr Download PDF

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Publication number
EP0531895A1
EP0531895A1 EP92115127A EP92115127A EP0531895A1 EP 0531895 A1 EP0531895 A1 EP 0531895A1 EP 92115127 A EP92115127 A EP 92115127A EP 92115127 A EP92115127 A EP 92115127A EP 0531895 A1 EP0531895 A1 EP 0531895A1
Authority
EP
European Patent Office
Prior art keywords
finger
coil spring
cylindrical element
rod
tooth
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
EP92115127A
Other languages
English (en)
French (fr)
Other versions
EP0531895B1 (de
Inventor
Laurent Kaelin
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0531895A1 publication Critical patent/EP0531895A1/de
Application granted granted Critical
Publication of EP0531895B1 publication Critical patent/EP0531895B1/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
    • G04B27/00—Mechanical devices for setting the time indicating means
    • G04B27/02—Mechanical devices for setting the time indicating means by making use of the winding means
    • G04B27/04—Mechanical devices for setting the time indicating means by making use of the winding means with clutch wheel
    • 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
    • G04B11/00—Click devices; Stop clicks; Clutches
    • G04B11/02—Devices allowing the motion of a rotatable part in only one direction

Definitions

  • the present invention relates to a unidirectional correction device for at least one time display member of a timepiece, said display member having a circular element provided with teeth.
  • One-way correction systems for a time display member are known.
  • document EP-B-O 173 230 (US-A-4 634 287) describes a universal timepiece comprising a date ring and a disc making a step in twenty-four hours.
  • the mechanism used is a sliding gear which has a toothing and a three-tooth pinion. If the rod is actuated in one direction, the gear returns to a first position where the teeth are in engagement with the disc. If the rod is actuated in the opposite direction, the gear returns to a second position where the pinion is engaged with the ring.
  • several mobiles are interposed between the control rod and the time indicator which must be corrected, which leads to a relatively complicated and expensive construction.
  • the document CH-A-607 556 aims to suppress such mobiles and to directly correct a date ring from a sliding pinion sliding on the time-setting rod.
  • the sliding pinion has an annular groove in which is frictionally mounted a wire spring surrounding the groove on a little more than three quarters of its periphery.
  • a free end of the wire spring protrudes radially from the periphery of the sliding pinion and serves directly as a drive finger for advancing or reversing the date ring by turning the rod respectively in one direction or the other.
  • this construction does not lead to the solution proposed by the present invention, namely a unidirectional correction device, since the spring of the cited document acts on the date ring in both directions of correction. It is a bidirectional device.
  • the document CH-A-290 100 describes a unidirectional control system for the reassembly of an alarm clock.
  • On the axis of the winding rod are mounted, one after the other, two sockets of the same diameter on which a coil spring is wound.
  • One of the sockets is integral with the rod while the other is free on the same rod.
  • the free socket is integral with a toothed wheel itself integral with a barrel spring.
  • this is a coupling system where the coil spring can only act if it encloses two elements (two sockets) placed one next to the other, which has nothing in common with the present invention where the coil spring encloses only one element (a sliding pinion) and where said spring has a raised end which drives a second element (a date disc).
  • the unidirectional correction device of the present invention is characterized in that it comprises a cylindrical element around which is wound with a slight tightening a coil spring, one end of which is raised. radially to serve finger capable of coming into contact with a tooth of the circular element and rotating it when said cylindrical element is rotated in a direction in which the force exerted on the finger by the tooth is directed in a direction tending to wind the coil spring around the cylindrical element and tightening it around it, said circular element remaining stationary when the cylindrical element is rotated in a direction for which the force exerted on the finger by the tooth is directed in a steering tending to open the coil spring and to release it from said cylindrical element.
  • Figures 1 and 4 show a unidirectional correction device 1 capable of correcting a time display member having a circular element 2 provided with teeth 3.
  • the correction device 1 comprises a cylindrical element 4 around which is wound with a slight tightening, a coil spring 5. One end of this spring is raised radially to serve as a control finger 6.
  • this finger 6 is capable of coming into contact with a tooth 3 of the circular element 2 and rotating this element in the direction of the arrow E when the cylindrical element 4 is driven in rotation in the direction of arrow A. Indeed, the resistance presented by tooth 3 against finger 6 develops a reaction force F1 which tends to wind the coil spring 5 around the cylindrical element 4 and hug him around him. We can say that the coil spring is locked around the cylindrical element of which it becomes integral.
  • a unidirectional correction system has therefore been produced since the time indicator 2 is advanced if the device 1 is turned in one direction, this indicator remaining stationary if the device is turned in the direction reverse.
  • the principle of the invention is very general and can be very simply verified by introducing a coil spring on a rod, the internal diameter of which is very slightly less than the diameter of the rod and one end of which is raised along a radius of the rod to form a control finger.
  • the device can be used in a timepiece, in particular for manual correction of various time indicators. It is clear however that it could be used wherever a one-way control is desired.
  • the cylindrical element 4 around which is wound the coil spring 5 is carried by a sliding pinion 8, cooperating with a time-setting rod 9.
  • the relative movement of the rod 9 relative to the sliding pinion 8 is ensured by a mechanism known elsewhere, and comprising in particular a pull tab 10 and a rocker 11.
  • the sliding pinion comprises a toothing 12 in engagement here with a reference 13, the latter meshing with a timer wheel 14.
  • the rod 9 is extended as far as possible and occupies a second pulled position which allows the hour and minute hands of the timepiece to be set to the time.
  • the finger 6 of the coil spring 5 is not engaged in the teeth 3 of the circular element 2 which is here a date ring with internal teeth well known from the state of the art.
  • Figure 4 shows a rod 9 occupying a first pulled position which allows the correction of the date ring 2.
  • the finger 6 of the coil spring 5 is engaged in the teeth 3 of the ring.
  • FIG. 5 which is a section along the line V-V in FIG. 4.
  • Figure 3 shows the rod 9 in the neutral, pushed position. Here no correction is made because the finger 6 is not engaged in the toothing 3 of the ring 2 and the toothing 12 of the sliding pinion 8 does not mesh with the reference 13.
  • FIG. 3 will also explain the way in which the sliding pinion 8 is executed.
  • the first part comprises a hub 20 in which slides a square 21 ending the rod 9.
  • the first part also carries a flange 22 preferably made in one piece with the hub.
  • the second part comprises the toothed pinion 24 proper carrying the edge teeth 12.
  • This pinion is extended by a neck 23 which forms the cylindrical element 4, which in turn carries the coil spring 5.
  • FIG. 3 shows that the outer diameter of the neck 23 is smaller than the diameter of the toothed pinion 24 and the flange 22 so that the coil spring 5 is held in place axially between the two parts forming the sliding pinion.
  • This construction by driving is especially advantageous to allow the mounting of the coil spring 5 which is slid over the neck 23 before the two parts in question are assembled.
  • the coil spring 5 is wound with a slight tightening around the cylindrical element 4. This tightening is obtained by providing a spring whose internal diameter is slightly less than the diameter of the cylindrical element.
  • the outside diameter of the neck 23 is 3.6 mm while the diameter of the coil spring 5 is 3.5 mm before mounting on the neck.
  • the locking torque of the coil spring on the cylindrical element depends on the number of turns making up the spring and, to a certain extent, on the diameter of the wire used to make the spring.
  • a spring made with 0.15 mm wire and comprising three turns gave excellent results.
  • the correction device according to the invention acting in a unidirectional manner, it is possible to design a double device which, for a position taken from the rod, corrects two different time indicators indicating for example, one the date and the other the day of the week and this following the direction of rotation of the rod. It is enough to have two coil springs, one wound in one direction and correcting the date and the other wound in the opposite direction and correcting the day of the week.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Adornments (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Particle Accelerators (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
EP92115127A 1991-09-11 1992-09-04 Vorrichtung für die Einwegkorrektur der Zeitanzeige in einer Uhr Expired - Lifetime EP0531895B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2671/91A CH681191B5 (de) 1991-09-11 1991-09-11
CH2671/91 1991-09-11

Publications (2)

Publication Number Publication Date
EP0531895A1 true EP0531895A1 (de) 1993-03-17
EP0531895B1 EP0531895B1 (de) 1995-04-12

Family

ID=4238958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115127A Expired - Lifetime EP0531895B1 (de) 1991-09-11 1992-09-04 Vorrichtung für die Einwegkorrektur der Zeitanzeige in einer Uhr

Country Status (9)

Country Link
US (1) US5303213A (de)
EP (1) EP0531895B1 (de)
JP (1) JP3223332B2 (de)
CN (1) CN1033767C (de)
CH (1) CH681191B5 (de)
DE (1) DE69202030T2 (de)
HK (1) HK1007201A1 (de)
SG (1) SG71660A1 (de)
TW (1) TW202505B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60227640D1 (de) * 2002-04-09 2008-08-28 Girard Perregaux Sa Betätigungsmechanismus für eine Uhr
JP4462606B2 (ja) * 2004-01-27 2010-05-12 セイコーインスツル株式会社 表示修正機構付き時計
DE602007007888D1 (de) * 2007-04-04 2010-09-02 Eta Sa Mft Horlogere Suisse Aufzugsvorrichtung mit unidirektionale Kupplung
EP1978420B1 (de) * 2007-04-04 2010-11-10 ETA SA Manufacture Horlogère Suisse Zahnrad für Uhrwerk und Vorrichtung zur Korrektur eines Anzeigemechanismus für eine Uhr mit einem solchen Zahnrad
EP2871534B1 (de) * 2013-11-06 2017-01-04 ETA SA Manufacture Horlogère Suisse Triebfeder einer Uhrwerk mit unidirektionalen Zahnraden
EP3454137B1 (de) * 2017-09-07 2024-03-06 Montres Breguet S.A. Betätigungswerkzeug eines korrektors, mit dem eine uhr ausgestattet ist
EP3489761B1 (de) * 2017-11-24 2020-05-06 Blancpain SA Triebfeder eines uhrwerks mit unidirektionalem zahnrad
EP3832400B1 (de) 2019-12-04 2022-06-22 ETA SA Manufacture Horlogère Suisse Vorrichtung und verfahren zur messung des spiels eines uhrenelements

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633950A (en) * 1949-09-21 1953-04-07 Gen Electric Spring type one-way drive
CH290100A (de) * 1950-03-13 1953-04-15 Narodni Podnik Chronotechna Sperr- und Mitnahmemechanismus zum Antrieb von Weckern, Uhrwerken und dergleichen federangetriebene Werke.
DE6600930U (de) * 1966-07-22 1969-02-13 Wehrle Uhrenfabrik Gmbh Halterung von stellwellen
FR2135362A1 (de) * 1971-05-05 1972-12-15 Ebauches Sa
CH607556GA3 (de) * 1974-11-06 1978-08-31 Bulova Watch Co Inc Vorrichtung fuer die manuelle schnellkorrektur der datumanzeige in einer uhr.
FR2447053A1 (fr) * 1979-01-17 1980-08-14 Vdo Schindling Dispositif de reglage pour montre d'automobile a affichage analogique
GB2095438A (en) * 1981-03-25 1982-09-29 Sefea Soc Europ De Fabrication Timepiece having an auxiliary indicating member for supplementary data

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH657007GA3 (de) * 1984-08-23 1986-08-15 Tissot Sa

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2633950A (en) * 1949-09-21 1953-04-07 Gen Electric Spring type one-way drive
CH290100A (de) * 1950-03-13 1953-04-15 Narodni Podnik Chronotechna Sperr- und Mitnahmemechanismus zum Antrieb von Weckern, Uhrwerken und dergleichen federangetriebene Werke.
DE6600930U (de) * 1966-07-22 1969-02-13 Wehrle Uhrenfabrik Gmbh Halterung von stellwellen
FR2135362A1 (de) * 1971-05-05 1972-12-15 Ebauches Sa
CH607556GA3 (de) * 1974-11-06 1978-08-31 Bulova Watch Co Inc Vorrichtung fuer die manuelle schnellkorrektur der datumanzeige in einer uhr.
FR2447053A1 (fr) * 1979-01-17 1980-08-14 Vdo Schindling Dispositif de reglage pour montre d'automobile a affichage analogique
GB2095438A (en) * 1981-03-25 1982-09-29 Sefea Soc Europ De Fabrication Timepiece having an auxiliary indicating member for supplementary data

Also Published As

Publication number Publication date
EP0531895B1 (de) 1995-04-12
CN1033767C (zh) 1997-01-08
CN1070492A (zh) 1993-03-31
TW202505B (de) 1993-03-21
DE69202030D1 (de) 1995-05-18
US5303213A (en) 1994-04-12
CH681191GA3 (de) 1993-02-15
SG71660A1 (en) 2000-04-18
DE69202030T2 (de) 1995-11-30
JP3223332B2 (ja) 2001-10-29
HK1007201A1 (en) 1999-04-01
CH681191B5 (de) 1993-08-13
JPH05203766A (ja) 1993-08-10

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