EP0531895B1 - Dispositif de correction unidirectionnel d'un organe d'affichage horaire - Google Patents

Dispositif de correction unidirectionnel d'un organe d'affichage horaire Download PDF

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Publication number
EP0531895B1
EP0531895B1 EP92115127A EP92115127A EP0531895B1 EP 0531895 B1 EP0531895 B1 EP 0531895B1 EP 92115127 A EP92115127 A EP 92115127A EP 92115127 A EP92115127 A EP 92115127A EP 0531895 B1 EP0531895 B1 EP 0531895B1
Authority
EP
European Patent Office
Prior art keywords
finger
cylindrical element
fact
tooth
helical spring
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
EP92115127A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0531895A1 (fr
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/fr
Application granted granted Critical
Publication of EP0531895B1 publication Critical patent/EP0531895B1/fr
Anticipated expiration legal-status Critical
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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.
  • 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 extends radially beyond the periphery of the sliding pinion and serves directly as a drive finger for advancing or retreating the date ring by turning the rod respectively in one direction or the other.
  • this construction does not lead to the solution offered 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 secured to 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. It can be said that the coil spring locks around the cylindrical element to 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 of the ends 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 to the maximum 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 drawn 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.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Adornments (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Particle Accelerators (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
EP92115127A 1991-09-11 1992-09-04 Dispositif de correction unidirectionnel d'un organe d'affichage horaire Expired - Lifetime EP0531895B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

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

Family

ID=4238958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92115127A Expired - Lifetime EP0531895B1 (fr) 1991-09-11 1992-09-04 Dispositif de correction unidirectionnel d'un organe d'affichage horaire

Country Status (9)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1353245B1 (fr) * 2002-04-09 2008-07-16 Girard-Perregaux S.A. Mécanisme de commande pour pièce d'horlogerie
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
ATE487962T1 (de) * 2007-04-04 2010-11-15 Eta Sa Mft Horlogere Suisse Zahnrad für uhrwerk und vorrichtung zur korrektur eines anzeigemechanismus für eine uhr mit einem solchen zahnrad
DE602007007888D1 (de) * 2007-04-04 2010-09-02 Eta Sa Mft Horlogere Suisse Aufzugsvorrichtung mit unidirektionale Kupplung
EP2871534B1 (fr) * 2013-11-06 2017-01-04 ETA SA Manufacture Horlogère Suisse Mobile d'horlogerie à roues unidirectionnelles
EP3454137B1 (fr) * 2017-09-07 2024-03-06 Montres Breguet S.A. Outil d'actionnement d'un correcteur équipant une montre
EP3489761B1 (fr) * 2017-11-24 2020-05-06 Blancpain SA Mobile d'horlogerie a roue unidirectionnelle
EP3832400B1 (fr) 2019-12-04 2022-06-22 ETA SA Manufacture Horlogère Suisse Dispositif et procede de mesure d'ebats d'horlogerie

Family Cites Families (8)

* 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
CH667871A4 (zh) * 1971-05-05 1973-04-13
CH607556GA3 (en) * 1974-11-06 1978-08-31 Bulova Watch Co Inc Device for rapid manual correction of the date indicator in a watch
DE2901634A1 (de) * 1979-01-17 1980-07-24 Vdo Schindling Einstellvorrichtung fuer analog anzeigende kraftfahrzeuguhren
FR2502804A1 (fr) * 1981-03-25 1982-10-01 Annemasse Ste Euro Fabr Ebauch Piece d'horlogerie comportant un organe auxiliaire d'affichage d'une donnee telle que le quantieme
CH657007GA3 (zh) * 1984-08-23 1986-08-15 Tissot Sa

Also Published As

Publication number Publication date
CN1070492A (zh) 1993-03-31
DE69202030T2 (de) 1995-11-30
DE69202030D1 (de) 1995-05-18
JP3223332B2 (ja) 2001-10-29
CH681191B5 (zh) 1993-08-13
CH681191GA3 (zh) 1993-02-15
JPH05203766A (ja) 1993-08-10
TW202505B (zh) 1993-03-21
SG71660A1 (en) 2000-04-18
HK1007201A1 (en) 1999-04-01
US5303213A (en) 1994-04-12
CN1033767C (zh) 1997-01-08
EP0531895A1 (fr) 1993-03-17

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