EP0247438B1 - Dispositif de correction pour pièce d'horlogerie comportant un verrou de sécurité - Google Patents

Dispositif de correction pour pièce d'horlogerie comportant un verrou de sécurité Download PDF

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Publication number
EP0247438B1
EP0247438B1 EP87106931A EP87106931A EP0247438B1 EP 0247438 B1 EP0247438 B1 EP 0247438B1 EP 87106931 A EP87106931 A EP 87106931A EP 87106931 A EP87106931 A EP 87106931A EP 0247438 B1 EP0247438 B1 EP 0247438B1
Authority
EP
European Patent Office
Prior art keywords
blade
stem
contact
stud
teeth
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
Application number
EP87106931A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0247438A1 (fr
Inventor
François Niklès
Cyril Vuilleumier
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
Original Assignee
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 Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0247438A1 publication Critical patent/EP0247438A1/fr
Application granted granted Critical
Publication of EP0247438B1 publication Critical patent/EP0247438B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/001—Electromechanical switches for setting or display
    • G04C3/007—Electromechanical contact-making and breaking devices acting as pulse generators for setting

Definitions

  • the invention relates to a correction device for a timepiece comprising a crown rod capable of being brought from a depressed rest position to a pulled working position and a contactor comprising a blade capable of coming into contact repeated with at least one contact pad to act on an electrical circuit when the rod is rotated in its pulled position.
  • US-A-3 841 081 shows a blade 6 which cooperates with the teeth of a ratchet wheel 4 itself rotated by a rod 1.
  • the blade comes into repeated contact with a contact pad 10.
  • the blade which is provided with a certain elasticity, can accidentally touch the contact pad, giving thus an unwanted electrical impulse and hence an unwanted correction signal if a shock is applied to the timepiece.
  • the correction device for an electronic timepiece described in patent CH-A-642,220 also includes an arm 25 which, when a crown stem 1 is rotated, can come into repeated contact with either a first terminal 29 either with a second terminal 30 according to the direction of rotation of the rod.
  • the arm can come into untimely contact with one or the other of the mentioned terminals and thus cause unwanted corrections.
  • the cited construction offers an additional switch device 33 which is engaged only when the rod is in the correction position, thus inhibiting any undesirable correction when this rod is in the rest position. This arrangement has the disadvantage, however, of complicating the construction and of reducing the operating reliability of the timepiece.
  • the present invention uses a lock controlled by the rod and arranged to limit the travel of the contactor blade when said rod is in the depressed position, so as to prevent said blade from coming into contact with said contact pad when a shock is applied to the timepiece.
  • the first three figures show a timepiece comprising a crowned rod 1 which can be arranged in three axial positions defined by three grooves 2, 3 and 4 and a notched jumper 5.
  • the piece also carries a ring 6 provided an internal toothing 7 and indications 8.
  • This ring which is similar to the date ring of a watch, is rotated if the rod is placed in the middle position where the jumper 5 cooperates with the groove 3 ( Figures 2 and 3) and if we rotate this rod counterclockwise.
  • a pinion 9 which is an integral part of the rod 1 is engaged with a wheel 10 which in turn drives the wheels 11 and 12 and finally the ring 6 by its teeth 7.
  • the three figures also show that the rod 1 can be moved into a second extreme pulled position for which the jumper 5 enters the groove 4. This is a position for setting the time of the timepiece which is carried out in a known manner and which need not be described here.
  • the clock mechanism taken as an example here is used to perform a timer function (or timer) used alone or incorporated in a watch also indicating the time in a conventional manner.
  • the ring 6 is used not to indicate the date but to display a period which, when it has elapsed, will activate an audible warning.
  • the ring 6 instead of being driven by the train of the timepiece, is actuated by the wearer of the watch directly by means of the crown rod 1.
  • the rod 1 it is therefore possible by means of the rod 1 to bring the ring 6 into any one of thirty-one positions, this number being chosen as a function of the positions which are usual in a timepiece provided with a date indicator.
  • the indications 8 carried by the ring represent periods in minutes ranging from five minutes to five minutes.
  • the indications 8 appear in turn through a window (not shown) generally located 3 hours from the timepiece.
  • the timepiece includes a contact tor 13 provided with a blade 14 capable of coming into repeated contact with at least one contact pad 15 to act on an electrical contact when the rod is rotated in its pulled position.
  • the timepiece comprises a lock 16 which is controlled by the rod 1 and which is arranged to limit the stroke of the blade 14 when the rod 1 is in the depressed position, so as to prevent said blade from come into contact with the stud 15 when a shock is applied to the timepiece.
  • the lock 16 has the appearance of a flat piece, elongated and provided at its first end with a folded edge 17 which constitutes a stop limiting the stroke of the blade.
  • the lock is guided longitudinally by another folded edge 18 which cooperates with an opening 19 made in the movement of the watch.
  • the lock is constantly applied by its second end also folded back 20 on the rod pinion 9 by means of a spring 21 which acts on a stop 22 lifted in the lock 16.
  • the lock is applied on a holding plate 23 which is part of the movement and is held in the height direction on the one hand by the spring 21 and on the other hand by a tongue 24.
  • the switch 13 is a rocker which can pivot around a fixed axis 25, said rocker comprising, in addition to the contact blade 14, a feeler 26 cooperating with a part toothed controlled by the rod, in this case here with the internal toothing 7 of the ring 6.
  • the contactor further comprises a return spring 27 which presses the feeler 26 against the toothing of the ring.
  • the blade 14 comes into electrical contact with the pad 15 each time the probe passes over a tooth 7 of the ring (FIG. 2), just as it separates from said pad each time that said probe is located in a hollow 28 separating two teeth ( Figure 1).
  • FIG. 2 it can be seen that the latch 16 is disposed outside the field of action of the blade and that the blade 14 passes from a contact position to a position where this contact is interrupted.
  • the device also includes a plate 29 cut and folded in such a way that it has a jumper spring 30 for positioning the ring 6 and the return spring 21 from which it has been question above to press the latch 16 against the rod 1.
  • the plate 29 is fixed to the movement by pins 31.
  • the drawing also shows that the tongue 24 which has been discussed above and which is cut out from the plate 29 used to hold latch 16.
  • the ring 6 has a notch 32 disposed between two teeth 7 which is deeper than the recesses 28 disposed between the other teeth.
  • FIG. 3 shows that when the feeler 26 of the contactor 13 is at the bottom of the notch 32, the blade 14 comes into electrical contact with a second stud 33.
  • an electrical pulse is given birth which is taken into account by an electronic circuit according to a process which will be described below.
  • the number of pulses collected is thus representative of the position of the ring 6 and therefore of the period chosen by the wearer of the watch and this starting from a starting point indicated by the zeroing of the ring, this zeroing taking place when the probe 26 enters the notch 32, thus causing contact of the blade 14 with the pad 33, also called reset pad.
  • the construction presented in the drawing is arranged so that the ring can only be driven in one direction, here when the stem-crown 1 is rotated counterclockwise.
  • the wheel 11 is mounted portable between the wheels 10 and 12. As can be seen in FIG. 2, the wheel 11 is engaged with the wheels 10 and 12 when the rod 1 is driven counterclockwise. against by this wheel 11 occupies position 11 'if the rod is driven clockwise.
  • FIG. 4 represents an electrical diagram of a circuit which can be used in the watch shown in FIGS. 1 to 3.
  • This circuit comprises a part 40 specifically intended for indicating the official time and a part 50 which performs the function timer in cooperation with the rod 1, the ring 6 and the blade 14 of the contactor 13.
  • the part 40 comprises a quartz oscillator 41 supplying a signal whose frequency is approximately 32 kHz.
  • This oscillator is connected to a divider 42 one of the outputs 43 of which is connected to part 50 of the circuit, the signal appearing at this output being constituted by a train of pulses whose pulses are spaced five minutes apart (0.003 Hz) , at least in the example described here.
  • the divider is connected to a shaping circuit 44, itself connected to a stepping motor 45 driving the hands 46 of the watch, by means of a gear train.
  • Contactor 13 is connected to a battery circuit mulator 51 which, in this example, is a simple up-down counter, the up-counting input 52 being connected to the contact pad 15 of the contactor, the down-counting input 53 at the output 43 of the divider and the zero output 54 to a warning device 55 providing an audible signal, or another similar signal, when the up-down counter 51 reaches the position 0.
  • This counter also includes a reset input 56 to which the contact pad 33 is connected.
  • Warning 55 is provided with a timing arrangement to ensure the production of an alarm signal for a certain time only after the up-down counter 51 has reached its position 0.
  • the operation of the circuit of FIG. 4 is as follows.
  • the user wishes to use the timer to set a time interval to measure, he first places the rod 1 in the pulled working position as illustrated in Figures 2 and 3. He rotates the rod until what appears the number 0 in the window.
  • the probe 26 is at the bottom of the notch 32 and the blade 14 comes into contact with the pad 33, which has the effect of zeroing the up-down counter 51.
  • the user then turns the rod 1 until the number corresponding to the desired duration in minutes appears behind the window.
  • the up-down counter 51 will be charged at the rate of the passage of the teeth 7 in front of the probe 26.
  • the down-up counter 51 has therefore recorded a certain number of pulses created by the repeated contacts of the blade 14 on the pad 15 and corresponding to as many five-minute periods which make up the period of time to be measured. Once this period of time has been set, the time base formed by the oscillator 41 and the divider 42 causes the content of the up-down counter 51 to be counted down at the rate of one pulse every five minutes, the period to be measured having ended when the up-down counter 51 reaches 0. It is at this instant that the alarm 55 acts to warn the user that the period of time has elapsed.
  • timer system in which a manual control acts repeatedly on an electrical contact.
  • the invention is not limited to the example chosen but generally encompasses all systems involving a hand-operated contactor such as those described in the documents cited in the preamble to this description, provided that these systems involve a safety lock preventing untimely contacts occurring during shocks applied to a timepiece.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Switches With Compound Operations (AREA)
EP87106931A 1986-05-26 1987-05-13 Dispositif de correction pour pièce d'horlogerie comportant un verrou de sécurité Expired EP0247438B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2110/86 1986-05-26
CH211086A CH664469GA3 (sh) 1986-05-26 1986-05-26

Publications (2)

Publication Number Publication Date
EP0247438A1 EP0247438A1 (fr) 1987-12-02
EP0247438B1 true EP0247438B1 (fr) 1989-11-02

Family

ID=4226107

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87106931A Expired EP0247438B1 (fr) 1986-05-26 1987-05-13 Dispositif de correction pour pièce d'horlogerie comportant un verrou de sécurité

Country Status (5)

Country Link
US (1) US4744068A (sh)
EP (1) EP0247438B1 (sh)
JP (1) JPS6325586A (sh)
CH (1) CH664469GA3 (sh)
DE (1) DE3760928D1 (sh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001074867A (ja) * 1999-09-06 2001-03-23 Seiko Instruments Inc 規正機構付電子時計
US6691867B1 (en) * 2000-04-27 2004-02-17 Christopher R. Bickel Sharps disposal assembly having user-friendly unwinding feature
JP4149751B2 (ja) * 2002-06-27 2008-09-17 セイコーインスツル株式会社 ブシュ付きリセットレバーを備えた電子時計
JP2004170271A (ja) * 2002-11-20 2004-06-17 Seiko Instruments Inc カレンダ付き時計
US7027362B2 (en) * 2003-12-11 2006-04-11 Timex Group B.V. Multifunctional rotating ring in a timepiece
EP3333644A1 (fr) * 2016-12-06 2018-06-13 ETA SA Manufacture Horlogère Suisse Dispositif pour la commande d'au moins deux fonctions électroniques et/ou mécaniques d'un objet portable

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592876B2 (ja) * 1972-07-10 1984-01-20 セイコーインスツルメンツ株式会社 時刻表示修正装置
CH581857B5 (sh) * 1974-04-05 1976-11-15 Tavannes Ebauches Sa
US3866407A (en) * 1974-04-25 1975-02-18 Timex Corp Stem locking mechanism for electric calendar watches
CH583933B5 (sh) * 1974-11-01 1977-01-14 Schild Sa A
JPS5917797B2 (ja) * 1975-03-25 1984-04-23 シチズン時計株式会社 デジタル電子腕時計
CH561175A4 (sh) * 1975-05-01 1977-04-29
JPS53128368A (en) * 1977-04-15 1978-11-09 Citizen Watch Co Ltd Battery wrist watch with calendar
CH624534GA3 (sh) * 1979-04-04 1981-08-14
JPS5660389A (en) * 1979-10-22 1981-05-25 Seiko Instr & Electronics Ltd Input device of electronic timepiece
JPS618396Y2 (sh) * 1980-06-06 1986-03-14
CH657007GA3 (sh) * 1984-08-23 1986-08-15 Tissot Sa

Also Published As

Publication number Publication date
DE3760928D1 (en) 1989-12-07
US4744068A (en) 1988-05-10
EP0247438A1 (fr) 1987-12-02
CH664469GA3 (sh) 1988-03-15
JPS6325586A (ja) 1988-02-03

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