EP0027288B1 - Elektronische Uhr mit Schrittmotor und Alarmschaltung - Google Patents

Elektronische Uhr mit Schrittmotor und Alarmschaltung Download PDF

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Publication number
EP0027288B1
EP0027288B1 EP19800200937 EP80200937A EP0027288B1 EP 0027288 B1 EP0027288 B1 EP 0027288B1 EP 19800200937 EP19800200937 EP 19800200937 EP 80200937 A EP80200937 A EP 80200937A EP 0027288 B1 EP0027288 B1 EP 0027288B1
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EP
European Patent Office
Prior art keywords
hands
circuit
time
alarm
rod
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
EP19800200937
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English (en)
French (fr)
Other versions
EP0027288A1 (de
Inventor
Norberto Perucchi
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.)
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
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
Priority claimed from CH927579A external-priority patent/CH632386B5/fr
Priority claimed from CH930779A external-priority patent/CH632893GA3/fr
Application filed by Ebauchesfabrik ETA AG filed Critical Ebauchesfabrik ETA AG
Publication of EP0027288A1 publication Critical patent/EP0027288A1/de
Application granted granted Critical
Publication of EP0027288B1 publication Critical patent/EP0027288B1/de
Expired legal-status Critical Current

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    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times

Definitions

  • Detector cogs have already been proposed, for example in the form of a disc provided at its periphery with a hole which passes in front of a light diode and leaves a flash emitted by the diode hitting a photodetector cell if there is synchronism between the rotation of the motor and the emission of the output pulse of the frequency divider.
  • an electronic timepiece which is provided with various additional functions capable of being actuated in parallel to the time counting and driving function of a stepper motor actuating needles.
  • One of these functions resides in the possibility of causing the needles to move voluntarily under the action of a push-button control in order to bring these needles to a conventional position in which the position of the seconds on the main dial corresponds to an alarm time which would be displayed by the hour hand.
  • the electronic means provided make it possible to store the alarm time thus displayed in a conventional manner and to bring the hands to a position corresponding to the correct time.
  • an additional function incorporated into the movement of an electronic watch also consists in allowing the triggering of an alarm at a predetermined time, but for recording this time alarm, the watch comprises display members distinct from the display members of the current time. These are crowns, bearing digital indications of hours and minutes which are placed under the dial and whose indications appear in a window arranged in the dial.
  • the control mechanism of this watch has a rod which can occupy several axial positions and which is movable in rotation. In one of these axial positions, this rod meshes with the alarm time display members, while in another axial position, it meshes with the current time display members.
  • the purpose of the present invention is to further improve watches with an already known alarm device by allowing the production of a wristwatch of this type fulfilling several functions, of an aesthetic and judicious presentation, by using input as simple as possible to activate the logic circuits incorporated in the watch.
  • said rod actuates the contacts connected to said control circuits in such a way that, in one of said axial positions corresponding to the programming of an alarm time, the rotation of said rod actuates said counting means, the account carried out by these means then corresponding to the amplitude said angular displacement caused, and in that the push-button controls, in the programming position of said rod, a transfer of the state of the counting means to a memory via said contact.
  • An electronic watch of this kind can be produced with a simplified display device comprising only one set of hands, so that the setting of an alarm time is effected by bringing to the desired position relative to on the dial, the hands which usually indicate the time.
  • a simplified display device comprising only one set of hands, so that the setting of an alarm time is effected by bringing to the desired position relative to on the dial, the hands which usually indicate the time.
  • the two control members a rod analogous to the winding and setting rods. time for classic mechanical watches and a pusher.
  • the circuits of the diagram shown in fig. 1 are those of a watch with an alarm device which comprises, in addition to the alarm device for setting the time by the usual hands, a system for compensating for accidental jumps of the engine, a system for correcting the time zone and , of course, a time setting device to adjust the time indications to the nearest second.
  • the watch includes a control rod 1 analogous to a winding and time-setting rod of a conventional mechanical watch, equipped with a crown 2 and capable of controlling a sliding pinion 3 for example via a pull tab and a rocker (not shown).
  • the sliding pinion 3 meshes in a return 4 when the rod is pulled outwards from its normal position.
  • the time setting position for which the sliding pinion 3 meshes in the reference 4 can be a third position, the intermediate position being for example a position for correcting the date and / or the day of the week. In the time setting position, a STOP contact is closed which, as will be seen below, acts on the circuits.
  • the reference 4 meshes in a mobile 5.
  • the latter as shown in the drawing, symbolizes the whole train. It is driven by a stepping motor M with the appropriate gear reduction, and its rotation is transmitted to two coaxial hands 6 and 7 capable of indicating on a dial 27 respectively the hours and the minutes (see fig. 4 to 6).
  • the motor M will for example take one step every 20 seconds so as to advance the hand 7 in three steps for each minute. Preferably, there will be no second hand. However, in other embodiments, it is also possible to provide a second hand 31 or 33 (FIGS. 5 and 6) and a stepping motor advancing one step every second. The transmission is then such that each step of the engine corresponds to a 6 ° advance of the second hand.
  • the motor M is actuated from a battery P which excites all the circuits.
  • the time base consists of a quartz Q which cooperates with the oscillating circuit OSC.
  • the high frequency pulses transmitted by this circuit are divided in the divider DIV, then the low frequency pulses are shaped in the DRIV circuit and thus supply the motor M.
  • the latter is in reversible operation. If the polarity of the pulses from DRIV is reversed, the direction of rotation of the motor is reversed.
  • the cog comprises a mobile detector 8.
  • this mobile will be fixed on a rotating axis with the seconds hand, that is to say performing one revolution per minute or, if necessary, on an axis rotating more slowly.
  • it comprises at its periphery a contact element 9 which, at each turn, comes into contact successively with three fixed elements 10, 11 and 12 arranged at its periphery in the vicinity of one another .
  • the two elements 10 and 12 are connected to a circuit SS which determines the direction of rotation of the mobile 8, while the contact element 11 is connected to a circuit CR which is a counter capable of counting the number of turns made by the mobile 8.
  • This rotation detector can be executed in different ways.
  • the mobile 8 can have several contacts. It is also possible to provide detection by optical means.
  • the circuits of the watch also include as an important element a logic circuit L capable of performing different operations according to the programming which is imposed on it from a program control circuit PR.
  • the circuits CR, L and PR also cooperate with a catch-up circuit R, with a circuit MIN for resetting seconds, with a circuit M, for memorizing the elapsed time and with a circuit M 2 of memorization of the alarm time.
  • a coincidence circuit REV an excitation circuit VI capable of supplying a vibrator 13, an inhibition circuit INH as well as an initialization circuit designated by CO.
  • the sound emitting member constituted by the vibrator 13 can be of any known construction.
  • the programming control circuit PR reacts either to pulses which come to it from the other circuits of the watch, that is to say impulses coming from outside. These are introduced into the circuit PR by a secondary control device which includes a push button 14.
  • the latter will be mounted on the watch case as will be seen below with reference to FIGS. 4 to 6. It will be arranged so that a pressure exerted on the push-button 14 causes the closing of a contact 15 and consequently, the sending of a pulse to the circuit PR.
  • any pressure on the push button 14 causes a 120 ° rotation of a movable member shown schematically at 16 in FIG. 1. This member will be arranged so as to always rotate in the same direction and will include a disc visible in a window.
  • the member 16 can display, in a window on the dial, either the indication AM, or the indication PM, or finally the indication NO.
  • three inputs of the PR circuit designated by a, b and c are brought to potentials 0 or 1 according to a three-position code, which corresponds to three states of the program circuit PR and consequently, there are three possibilities for sending orders on the circuits which are connected.
  • the STOP contact is closed so that the circuit PR sends to circuit L the order to stop the transmission of the pulses to the motor M.
  • the latter is therefore stopped.
  • the pinion 3 is coupled to the return 4, so that a rotation of the rod causes that of the train.
  • the pulses which leave the divider circuit DIV are diverted to the memory M, in which they are counted. Consequently, if the needles 6 and 7 are rotated by hand by means of the crown 2, the direction of rotation is detected by the circuit SS and the number of rotations of the mobile 8 is counted by the circuit CR in the positive direction or in the negative direction according to the directions detected by the SS circuit.
  • the wearer of the watch When the hands 6 and 7 have been brought to the wake-up time, the wearer of the watch must press the push-button 14. Closing the contact 15 causes the state of the counter CR to be transferred to the memory M 2 . At the same time, the disc 16 rotates one step. The operation carried out on push-button 14 must be repeated so that the indication (AM, PM or NO) appearing in the dial window (see fig. 4, 5 or 6) corresponds to the period of 12 h during which we want the alarm to be triggered. If the indication NO is displayed, the triggering of the alarm will be completely inhibited. On the other hand, if the indication AM or PM is displayed and if the circuits are correctly initialized as will be seen further on, the alarm is triggered during the desired period before to the afternoon.
  • the crown 2 is pushed back to its normal position, which opens the STOP contact.
  • the pulses leaving the divider DIV continue for a certain time to be sent into the memory M,.
  • the opening of the STOP contact controls the circuit L so that it sends to the DRIV circuit a certain number of rapid pulses, for example at a frequency of 32 Hz controlling via the motor M the automatic return of the needles in the proper position.
  • the number of pulses which must thus be sent in the DRIV circuit is calculated from the state of the counter CR as it was introduced into the memory M 2 and from the state of the memory M, which corresponds the time elapsed during the operation.
  • the pulses leaving the divider DIV are again sent regularly on the DRIV circuit in order to supply the motor M at normal speed. Note that if the motor normally takes one step every 20 seconds, a correction of 6 h which corresponds to the maximum possible amplitude will take at the rate of 32 steps per second a total duration of approximately 35 seconds.
  • the rotations of the mobile 8 are counted from 0 by the CR counter and the momentary state thereof is permanently transmitted to the coincidence circuit REV where it is compared with the state of the memory M 2 .
  • the state of the counter CR coincides with that of the memory M 2 .
  • the indicating member 16 is in the NO position or in a position (AM or PM) which does not correspond to the total sum of the time count recorded by the counter CR, the coincidence signal is inhibited by the action of the INH circuit.
  • the state of the counter CR is equal to a number of pulses transmitted by the contact 11 signifying that the current time corresponds to the morning or afternoon period which is identified in the window of the dial by the disk 16, then the coincidence signal emitted by the circuit REV is transmitted to the excitation circuit of the vibrator VI and the vibrator 13 emits a characteristic sound.
  • a pressure on the push-button 14 causes its interruption provided that the rod 1 is in its normal position.
  • the alarm signal ceases after a predetermined time. In both cases, the alarm circuit remains programmed, so that the alarm will be triggered again 24 hours later.
  • the PR circuit is still arranged so as to fulfill the following functions: If, during the normal running of the watch and while the vibrator 13 does not operate, the push button 14, the circuit PR sends to circuit L an order consisting in transmitting to the DRIV drive circuit for rapid pulses. While the pulses coming out of the divider DIV are memorized, the motor rapidly drives the hands until there is a coincidence between the state of the counter CR and the memory M 2 , so that the hands indicate the time on which the alarm is programmed. After a certain time, for example a minute or after pressing the push-button 14 again, the circuit L sends again rapid pulses so as to turn the motor in the opposite direction and automatically return it to the correct time. taking into account the time elapsed. Pressing the push button 14 when the rod is in the normal position does not modify the position of the disc 16.
  • auxiliary devices which the watch represented in FIG. 1.
  • These auxiliary devices are not essential for the performance of the alarm clock functions and could, in variants, be omitted. This moreover results from the fact that it has been possible to describe above all the alarm functions without having recourse to these circuits or auxiliary functions.
  • the circuits of the watch described does not yet include an automatic recovery circuit for accidental jumps represented by R. It is a coincidence circuit which is connected, on the one hand, to circuit L, and on the other hand , at the CR counter.
  • R an automatic recovery circuit for accidental jumps represented by R.
  • It is a coincidence circuit which is connected, on the one hand, to circuit L, and on the other hand , at the CR counter.
  • the motor M has made an untimely jump or has not reacted to a normal pulse sent by the DRIV circuit, the state of coincidence measured by circuit R and which is normally continuously checked is broken. The rupture of this coincidence causes the sending of pulses by circuit R to circuit DRIV. Motor M is then blocked for a few periods, or accelerated until coincidence is achieved.
  • the hands were mechanically driven from the rod when the latter was in the time setting position, and they were driven at a rapid rate by electronic means when 'It was a question of changing their position once the rod had been returned to its normal position.
  • other embodiments of the control system are also possible without departing from the spirit of the invention.
  • fig. 2 shows the diagram of an embodiment which allows the needles to be moved by entirely electronic means in all situations.
  • the circuit parts which are modified with respect to FIG. 1 have been represented.
  • the watch of the second embodiment comprises a control rod 17 fitted with a crown 2.
  • This rod is also movable in the axial direction and in rotation, but it does not control any deflection or pinion. It carries the STOP contact member, as in the first embodiment, so that this contact is closed when the rod is pulled into the time setting position. On the other hand, it carries a contact element 19 which projects laterally from the rod and moves in an arc when the latter rotates.
  • the rod being earthed by closing the STOP contact, it suffices to press the crown 2 in one direction of rotation or the other so that the contact element 19 connects the mass to one or to the another of two fixed terminals 20 and 21 located on either side of the rod 17. These terminals can be fixed to the movement plate while being suitably insulated.
  • the rod 17 will also be equipped with a lateral pin 22 cooperating for example with two springs 23 and 24 so as to be constantly brought back into a fixed orientation for which the element 19 is separated from the contacts 20 and 21. It could also be replaced by the system 22, 23, 24 by a cam and a leaf spring. As long as the crown 2 is kept pressed in one direction or the other, the hands turn rapidly in one without or the other. As a control system of this kind can perfectly be combined with a return circuit to 0 such as the MIN circuit, the needles are again brought back to a position corresponding to one full minute as soon as the rod is no longer actuated.
  • Fig. 3 shows yet another embodiment in which the train does not include a moving detector.
  • the control device of FIG. 2 with the crown 2 wedged on the rod 17 and capable of earthing either the terminal 20 or the terminal 21.
  • the push button 14 which controls a contact 15 and actuates the rotary disc 16 is also present.
  • the box is represented schematically by the number 25. It carries a glass 26 and is equipped with the crown 2 and the push button 14. Under the glass extends a dial 27 which includes a turn of 'hour 28, a window 29 showing the date and a window 30 showing the indication AM, PM or NO carried by the disc 16.
  • the display system has two hands, an hour hand 6 and a minute hand 7.
  • the hour and minute hands 6 and 7 have been added with a seconds hand 31 shifted over 6 hours and moving over an area 32 of the dial so as to count the seconds every minute.
  • a second hand 33 which is coaxial with the hands 6 and 7.
  • the latter will be wedged on the axis of a seconds mobile which can be permanently kinematically linked to the gear train, but which, in other embodiments , could also be trained by other means.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Claims (3)

1. Elektronische Uhr mit Zeiger (6, 7) zum Anzeigen der Zeit, einem Schrittmotor (M) zum Einwirken auf ein Räderwerk (5), das die genannten Zeiger antreibt, einem von Hand bedienbaren Steuermechanismus (1, 14; 17) zum Verstellen der genannten Zeiger, damit diese eine gewünschte Alarmzeit anzeigen, welcher Steuermechanismus eine in verschiedene Stellungen achsial verschiebbare und drehbare Zeiteinstellwelle (1; 17) aufweist, die auf Kontakte (STOP, 9-10, 9-11, 9-12; 19-20, 19-21 einwirkt, die mit Steuerstromkreisen des genannten Schrittmotors verbunden sind, weiter mit einem Alarmmittel une einer Drucktaste (14), die mit einem Kontakt (15) zusammenwirkt, wobei das Alarmmittel (13) in dem Moment ausgelöst wird, in dem die Zeiger während dem normalen Betrieb die genannte Alarmzeit erreichen, und die genannten Steuerstromkreise umfassen:
- Zählmittel (CR, L) zum Zählen der Drehungen eines mit den Zeigern verbundenen Rades (8), wobei die Anzahl dieser Drehungen eine Information der durch die Betätigung des Steuermechanismus bewirkten Winkelversetzung der Zeiger darstellt,
- den genannten Zählmitteln (CR, L) zugeordnete Speichermittel (14, M2) zum Speichern der genannten Anzahl Drehungen,
- ein zwischen die genannten Speichermittel und die genannten Zählmittel geschalteter Konzidenzstromkreis (REV) zum Auslösen des Alarmmittels (13), wenn die seit dem Betätigen der Speichermittel gezählte Anzahl Drehungen mit der im Speichermittel gespeicherten Information übereinstimmt, und
- Mittel (L, DRIV) zum automatischen Zurücksetzen der Zeiger in eine Stellung, in der sie die richtige Uhrzeit anzeigen, nach einer bewirkten Verstellung, dadurch gekennzeichnet, dass die genannte Welle (1; 17) die mit den genannten Steuerstromkreisen verbundenen Kontakte (STOP, 9-10, 9-11, 9-12; 19-20, 19-21) so betätigt, dass in einer der genannten achsialen Stellungen, die der Programmierung einer Alarmzeit entspricht, die Drehung der genannten Welle die genannten Zahlmittel (CR, L) betätigt, wobei die durch diese Mittel ausgeführte Zählung der Grösse der genannten bewirkten Winkelversetzung entspricht, und dass die Drucktaste (14), wenn sie in der Programmierstellung der genannten Welle betätigt wird, eine Uebertragung des Zählstandes derZahfmittel (CR, L) unter Mitwirkung des genannten Kontaktes (15) in einen Speicher (M2) einleitet.
2. Elektronische Uhr nach Anspruch 1, dadurch gekennzeichnet, dass die Steuerstromkreise so ausgebildet sind, dass der mit der Drucktaste (14) zusammenarbeitende Kontakt (15) in einer gegenüber der Programmierstellung unterschiedlichen achsialen Stellung der Welle (1; 17) zum Anzeigen der programmierten Alarmzeitden Schnellantrieb der Zeiger steuert.
3. Elektronische Uhr nach Anspruch 1, dadurch gekennzeichnet, dass sie Mittel (M,) zum Speichern der während dem eingeleiteten Versetzen der Zeiger verflossenen realen Zeit umfasst, und dass die automatischen Zurücksetzmittel (L, DRIV), wenn sie aktiviert sind, ausserdem auf die in den Speichermitteln (M,) enthaltenen Information über die genannte verflossene reale Zeit ansprechen.
EP19800200937 1979-10-15 1980-10-03 Elektronische Uhr mit Schrittmotor und Alarmschaltung Expired EP0027288B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH927579A CH632386B5 (fr) 1979-10-15 1979-10-15 Montre electronique a moteur pas a pas et a dispositif d'alarme.
CH9275/79 1979-10-15
CH9307/79 1979-10-16
CH930779A CH632893GA3 (en) 1979-10-16 1979-10-16 Electronic watch with stepper motor and logic circuit

Publications (2)

Publication Number Publication Date
EP0027288A1 EP0027288A1 (de) 1981-04-22
EP0027288B1 true EP0027288B1 (de) 1985-12-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800200937 Expired EP0027288B1 (de) 1979-10-15 1980-10-03 Elektronische Uhr mit Schrittmotor und Alarmschaltung

Country Status (2)

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EP (1) EP0027288B1 (de)
DE (1) DE3071301D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH640998B (fr) * 1981-02-17 Longines Montres Comp D Piece d'horlogerie electronique.
CH645772GA3 (de) * 1981-09-23 1984-10-31

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52113256A (en) * 1976-03-19 1977-09-22 Seiko Instr & Electronics Ltd Analog electronic clock
CH617058B (fr) * 1977-07-18 Berney Sa Jean Claude Piece d'horlogerie electronique.

Also Published As

Publication number Publication date
DE3071301D1 (en) 1986-01-30
EP0027288A1 (de) 1981-04-22

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