WO2001048567A1 - Dispositif d'horlogerie mecanique pourvu d'un mecanisme de commande generateur de puissance du balancier annulaire regle - Google Patents

Dispositif d'horlogerie mecanique pourvu d'un mecanisme de commande generateur de puissance du balancier annulaire regle Download PDF

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Publication number
WO2001048567A1
WO2001048567A1 PCT/JP2000/000679 JP0000679W WO0148567A1 WO 2001048567 A1 WO2001048567 A1 WO 2001048567A1 JP 0000679 W JP0000679 W JP 0000679W WO 0148567 A1 WO0148567 A1 WO 0148567A1
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WO
WIPO (PCT)
Prior art keywords
balance
mechanical timepiece
wheel
hairspring
rotation
Prior art date
Application number
PCT/JP2000/000679
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Tokoro
Koichiro Jujo
Masafumi Hoshino
Original Assignee
Seiko Instruments Inc.
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 Seiko Instruments Inc. filed Critical Seiko Instruments Inc.
Priority to EP00902142A priority Critical patent/EP1241538A4/fr
Publication of WO2001048567A1 publication Critical patent/WO2001048567A1/fr

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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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/047—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using other coupling means, e.g. electrostrictive, magnetostrictive
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • 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
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • 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
    • G04C3/08—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a mechanical oscillator other than a pendulum or balance, e.g. by a tuning fork, e.g. electrostatically

Definitions

  • the present invention relates to a mechanical timepiece that can display time with high accuracy.
  • the present invention provides a balance with a balance power generation control mechanism that is capable of controlling the period of the balance vibration of the balance with the energy generated by using the rotation vibration of the balance with hair in order to adjust the rate of the watch.
  • a balance power generation control mechanism that is capable of controlling the period of the balance vibration of the balance with the energy generated by using the rotation vibration of the balance with hair in order to adjust the rate of the watch.
  • a movement (mechanical body) 110 of the mechanical timepiece has a main plate 1102 constituting a substrate of the movement.
  • the winding stem 111 is rotatably incorporated into the winding guide hole 111a of the main plate 111.
  • the dial 1 104 (shown in phantom in FIG. 11) is attached to the movement 110.
  • the side with the dial is called the “back side” of the movement
  • the side opposite to the side with the dial is called the “front side” of the movement.
  • the train wheel built into the “front side” of the movement is called “front train wheel”
  • the train wheel built into the “back side” of the movement is called “back train wheel”.
  • the axial position of the winding stem 1 1 1 0 is determined by a switching device that includes the setting 1 1 9 0, the bar 1 1 92, the spring 1 1 94, and the back 1 1 96.
  • Car 1 1 1 2 is rotatably provided on the guide shaft portion of the winding stem 1 1 1 1 0.
  • the escape / governing device for controlling the rotation of the front wheel train includes a balance 111, an escape wheel 111, and an ankle 111.
  • the balance 111 includes a balance 111a, a balance wheel 114Ob, and a hairspring 111c.
  • the cylinder pinion 1 1 50 rotates simultaneously.
  • the minute hand 1 1 5 2 attached to the cylindrical pin 1 1 50 displays “minute”.
  • the cylinder pinion 1 1 50 is provided with a slip mechanism for the center wheel 1 1 2 4.
  • the hour wheel 1154 rotates through the rotation of the minute wheel.
  • the hour hand 1 1 5 6 attached to the hour wheel 1 1 5 4 indicates “hour”.
  • the barrel car 1 120 is supported so as to be rotatable with respect to the main plate 1 102 and the barrel holder 1 160.
  • the second wheel 1 1 2 4, the third wheel 1 1 2 6, the fourth wheel 1 1 2 8, and the escape wheel 1 1 3 0 are for the main plate 1 1 0 2 and the train wheel bridge 1 1 6 2 It is supported so that it can rotate.
  • the ankle 1 1 4 2 is supported so as to be rotatable with respect to the main plate 1 1 10 2 and the ankle receiver 1 1 6 4.
  • the balance with hairspring 1140 is supported so as to be rotatable with respect to the balance plate 1102 and the balance with hairspring 1166.
  • the hairspring 1 1 4 0 c has a spiral shape with multiple turns. It is a thin leaf spring.
  • the inner end of the hairspring 1140c is fixed to the beard ball 1140d fixed to the balance 1140a, and the outer end of the hairspring 1140c is fixed to the balance 1166. It is fixed by screwing through the beard holder 1170a attached to the receiver 1170.
  • a needle 1168 is rotatably mounted on the balance 1166. Beard
  • the mainspring torque increases. Decreases.
  • the mainspring torque is about 27 gcm in the fully wound state, about 23 gcm after 20 hours from the fully wound state, and 40 hours after the fully wound state. Approximately 18 g ⁇ cm.
  • the swing angle of the balance with hairspring when the spring torque decreases, the swing angle of the balance with hairspring also decreases.
  • the swing angle of the balance with hairspring is about 240 to 270 degrees, and when the mainspring torque is 20 to 25 gcm, the swing of the balance with hairspring is obtained. The angle is about 180-240 degrees.
  • an instantaneous rate (a numerical value indicating the precision of a clock) with respect to a swing angle of a balance with a typical conventional mechanical timepiece.
  • instantaneous rate or “rate” means “mechanical watch when left for one day while maintaining the condition and environment such as the swing angle of the balance when measuring the rate. A value that indicates the advance or delay of a mechanical watch when the sun has passed. " In the case of Fig. 14, the balance When the swing angle is more than 240 degrees or less than 200 degrees, the instantaneous rate is delayed.
  • the instantaneous rate is about 0 to 5 seconds / day. (Advancing about 0-5 seconds per day)
  • the instantaneous rate is about 20 seconds / day (about 20 seconds behind each day).
  • FIG. 15 shows the transition of the elapsed time and the instantaneous rate when the mainspring is rewound from the fully wound state in a typical conventional mechanical timepiece.
  • the “rate” indicating the advance or the delay of the clock per day is the instantaneous rate with respect to the elapsed time when the mainspring shown in FIG. 15 is unwound from all windings. Obtained by integrating the curve over 24 hours.
  • the mainspring torque is reduced and the swing angle of the balance with hairspring decreases as the duration of the mainspring is unwound from the fully wound state, so that the instantaneous rate is delayed.
  • the instantaneous rate when the mainspring is fully wound is advanced in advance in anticipation of the delay of the watch after the elapse of 24 hours, and the clock per day It was adjusted in advance so that the "rate", which indicates the progress of the watch or the delay of the clock, became positive.
  • the instantaneous rate is about 3 seconds / day (about 3 seconds per day), but in the fully wound state. After 20 hours, the instantaneous rate is about 3 seconds / day (about 3 seconds behind each day), and after 24 hours from the full winding state, the instantaneous rate is about 8 seconds / day (1 After about 30 hours from the full winding state, the instantaneous rate is about-16 seconds / state (each is about 16 seconds late).
  • Conventional mechanical watches use a balance with a balance that alternates between clockwise and counterclockwise rotation, a balance wheel that rotates based on the rotation of the front train wheel, and an escape wheel that rotates based on the operation of the balance.
  • the accuracy of the watch was determined by the accuracy with which the escapement and governor, including the controlled vehicle, operated.
  • the conventional mechanical timepiece has a problem that the range in which the period of the rotational vibration of the balance with hairspring can be increased is limited, and thus the range in which the accuracy of the timepiece can be improved is limited.
  • an object of the present invention is to provide an extremely accurate mechanical timepiece.
  • Another object of the present invention is to provide a high-precision mechanical timepiece that can be used for a long time.
  • a mechanical timepiece includes a mainspring constituting a power source, a front wheel train that rotates by a rotational force when the mainspring is unwound, and an escape / governing device for controlling the rotation of the front wheel train.
  • This escapement / speed governor has a balance that alternately rotates clockwise and counterclockwise, an escape wheel that rotates based on the rotation of the front train wheel, and a balance based on the operation of the balance with hairspring.
  • a balance for controlling the rotation of the escape wheel, and the balance has a movement configured to include a hairspring, a balance and a balance wheel.
  • the mechanical timepiece of the present invention further includes a quartz oscillator constituting a source oscillation, and an output signal output by the oscillation of the quartz oscillator being input, dividing the signal to output a signal relating to time. And an electricity storage member for operating the IC.
  • the mechanical timepiece of the present invention further includes a rate detector for detecting a rate of the mechanical timepiece, a frequency-divided signal obtained by the frequency divider, and an operating state signal indicating the rate detected by the rate detector. And a balance power generation control unit configured to control the period of the rotation vibration of the balance with hairspring and to generate power by the rotation vibration of the balance with hairspring.
  • a balance power generation control unit of a mechanical timepiece includes a balance magnet provided on a balance with hair and a coil arranged so as to exert a magnetic force on the balance magnet. It is preferable that a rotation force of the balance with hairspring can be suppressed by applying a magnetic force to the balance with hairspring based on the frequency-divided signal obtained by dividing the frequency and the operation state signal indicating the rate detected by the rate detector.
  • the current generated by the rotational vibration of the balance with hairspring is rectified by a rectification circuit and stored in a power storage member.
  • the balance power generation control unit of the mechanical timepiece of the present invention can change the period of the rotation vibration of the balance with hairspring by controlling the rotation of the balance with hairspread by applying “Airy's theorem”.
  • Airy's theorem means that the pendulum does not disturb the vibration even when energy is applied at the center point of the vibration.
  • the balance power generation control unit of the mechanical timepiece when the rate of the mechanical timepiece is progressing, applies a brake to the rotation of the balance with the timing before it becomes the center of the rotational vibration of the balance.
  • the rate of the mechanical watch is delayed, it is preferable that the rotation of the balance with hair be braked after passing through the center of rotation of the balance with hairspring.
  • the rate detecting section of the mechanical timepiece of the present invention counts an ankle detecting piezoelectric element provided on the pin and a pallet detecting signal output by the pallet detecting piezoelectric element in order to detect the operation of the ankle. And a counting unit for counting the number of ankles.
  • the power storage member may be, for example, a rechargeable secondary battery or a rechargeable capacitor.
  • a rechargeable secondary battery for example, a lithium secondary battery can be used.
  • the mechanical timepiece of the present invention may include a self-winding power generation unit.
  • the electric energy generated by the self-winding power generation unit is configured to be stored in the power storage member.
  • the rectifier circuit is configured using a Schottky barrier diode.
  • the Schottky barrier diode has a higher operating speed and lower forward voltage than a PN junction diode, and is therefore most suitable for rectifying low voltages.
  • the IC is configured using SOI technology.
  • SOI technology can reduce the capacitance of the transistor, increase the operating speed, and reduce the current consumption. This is because it can be done.
  • the balance power generation control unit of the mechanical timepiece according to the present invention may be configured such that the coil is turned on at a certain time interval including the center of the balance vibration of the balance to generate an induced current in the coil by the rotation vibration of the balance.
  • the coil is turned on at a certain time interval including the center of the balance vibration of the balance to generate an induced current in the coil by the rotation vibration of the balance.
  • it is constituted.
  • the battery life of a normal analog quartz watch is about two years.
  • the battery life of a normal analog quartz watch can be improved by using a power storage member having the same size and shape as a normal analog quartz watch, that is, a secondary battery or a capacitor.
  • the rechargeable battery or capacitor can be used for a longer period.
  • Ordinary mechanical watches can be used for about 5 years without any repairs, and if they are overhauled after 5 years of use, they can be used for about 5 more years. Therefore, a normal mechanical watch can be used for about 10 years if it is overhauled once. Therefore, in the mechanical timepiece of the present invention, a crystal and an IC similar to a normal analog type quartz timepiece and an electricity storage member having dimensions and shapes similar to those of a normal analog type quartz timepiece, that is, a secondary battery or a capacitor are used. Even so, there is no need to change batteries until the need to overhaul. Further, in the mechanical timepiece of the present invention, the capacity of the power storage member, that is, the secondary battery or the capacitor is increased,
  • the timepiece of the present invention since the timepiece is operated by the mechanical structure, there is a possibility that the timepiece will stop even if the electricity storage member, that is, the electric energy stored in the secondary battery or the capacitor is lost. The accuracy of the time display will only be worse than before the electrical energy stored in the secondary battery or capacitor has been exhausted.
  • the mechanical timepiece of the present invention is equipped with a self-winding power generation mechanism or a manual winding power generation mechanism, the possibility that the electric energy stored in the power storage member, that is, the secondary battery or the capacitor will be lost is reduced.
  • FIG. 1 is a plan view showing a schematic shape of a front side of a movement in an embodiment of a mechanical timepiece of the present invention (in FIG. 1, some parts are omitted, and a receiving member is indicated by a virtual line. Yes)
  • FIG. 2 is an enlarged partial plan view showing a schematic shape of a balance with hairspring in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 3 is an enlarged partial sectional view showing a schematic shape of a balance with hairspring in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 4 shows a schematic shape of a balance magnet in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 5 is a block diagram schematically showing an operation of controlling the operation of the balance with hairspring in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 6 is a time chart showing the principle of controlling the operation of the balance with hair in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 7 is a schematic partial plan view showing a configuration of a part for detecting an operation of a wheel train in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 8 is a time chart showing the principle of controlling the operation of the balance with hair in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 9 is a flowchart showing an operation of a portion for controlling the operation of the balance with hair in the embodiment of the mechanical timepiece of the present invention.
  • FIG. 10 is a plan view showing a schematic shape on the front side of a movement of a conventional mechanical timepiece (in FIG. 10, some parts are omitted, and a receiving member is shown by a virtual line).
  • FIG. 11 is a schematic partial cross-sectional view of a movement of a conventional mechanical timepiece (in FIG. 11, some parts are omitted).
  • FIG. 12 is a graph schematically showing the relationship between the elapsed time of unwinding a whole timepiece and a mainspring torque in a mechanical timepiece.
  • FIG. 13 is a graph schematically showing the relationship between the swing angle of the balance with hairspring and the mainspring torque in a mechanical timepiece.
  • FIG. 14 is a graph schematically showing the relationship between the swing angle of the balance with hair and the instantaneous rate in a mechanical timepiece.
  • FIG. 15 is a graph schematically showing the relationship between the elapsed time and the instantaneous rate of unwinding from a full turn in a mechanical timepiece.
  • the movement 640 of the mechanical timepiece includes a main plate 102 constituting a substrate of the movement.
  • the winding stem 110 is rotatably incorporated in the winding stem guide hole 102a of the main plate 102.
  • a dial (not shown) is attached to the movement 640 of the mechanical timepiece of the present invention.
  • the dial is provided with, for example, a 12 o'clock scale, a 3 o'clock scale, a 6 o'clock scale, and a 9 o'clock scale.
  • the winding stem 110 has a corner and a guide shaft.
  • a thumbwheel (not shown) is installed at the corner of the winding stem 110.
  • the ratchet wheel has the same rotation axis as that of the winding pin 110. That is, the ratchet wheel has a square hole, and is provided so as to rotate based on the rotation of the winding stem 110 by fitting the square hole into the corner of the winding stem 110.
  • the ratchet wheel has insteps and teeth. The instep is located at the end of the wheel closer to the center of the movement. The tooth is located at the end of the wheel closer to the outside of the movement.
  • a movement device for determining the position of the winding stem 110 in the axial direction is incorporated in the movement 640.
  • the switching device includes a setting lever 13, a latch 13 4, a latch spring 13 6, and a back retainer 13 36.
  • the position of the winding pin 110 in the direction of the rotation axis is determined based on the rotation of the setting 1 32.
  • the position of the wheel in the rotation axis direction is determined based on the rotation of the bar 1 34.
  • the bar 1 3 4 is positioned at two positions in the rotation direction.
  • the wheel 1 1 2 is rotatably incorporated in the guide shaft of the winding stem 110.
  • the winding stem 110 is rotated in a state where the winding stem 110 is located at the first winding stem position (0th stage) closest to the inside of the movement 64 0 along the rotation axis direction, Through the rotation of the thumbwheel
  • the car 1 1 2 is configured to rotate.
  • the round wheel 1 1 4 is incorporated so as to be rotated by the rotation of the wheel 1 1 2.
  • the square hole wheel 116 is assembled so as to be rotated by the rotation of the round hole wheel 114.
  • Movement 640 uses a mainspring (not shown) housed in barrel barrel 120 as a power source.
  • the mainspring is made of a springy elastic material such as iron.
  • the square hole wheel 1 16 is configured to be able to wind up the mainspring by rotating.
  • the center wheel & pinion 124 is mounted so as to be rotated by the rotation of the barrel wheel 120.
  • the third wheel 1 26 is incorporated so as to rotate based on the rotation of the second wheel 124.
  • the fourth wheel 128 is incorporated so as to rotate based on the rotation of the third wheel 126.
  • the onion wheel 130 is incorporated so as to rotate based on the rotation of the fourth wheel 128.
  • the barrel car 1 2 0, the second wheel 1 2 4, the third wheel 1 2 6 and the fourth wheel 1 2 8 constitute a front wheel train.
  • the movement 640 incorporates an escape / governing device for controlling the rotation of the front train wheel.
  • the escapement and speed governor operate a balance wheel 140 that rotates clockwise and counterclockwise at regular intervals, an escape wheel 1300 that rotates based on the rotation of the front train wheel, and a balance wheel 140. And an ankle 142 that controls the rotation of the escape wheel 130 based on the
  • the basic operating principle of the escape wheel 130, the ankle 144 and the balance 140 is the same as the movement of a conventional mechanical watch.
  • the ankles 142 are provided with an incisor stone 142 a provided so as to be able to contact the escape wheel 130 and an egress provided so as to be able to contact the escape wheel 130. It has a claw stone 14 2 b, an ankle sword tip portion 14 2 c provided to allow a balance stone (not shown) to enter and exit, and an ankle support portion 144 2 d.
  • the ankles 14 2 rotate the rocks counterclockwise (counterclockwise) by the force of the wheel 130. Let it. Then, the ankle support portion 142d comes into contact with the first pin 102d of the main plate, the rotation of the ankle 142 stops, and the second stop state is established.
  • the balance 140 rotates counterclockwise (clockwise) and oscillates freely.
  • the balance 140 rotates clockwise (clockwise)
  • the shaking stone also rotates clockwise (clockwise).
  • the cylindrical pinion (not shown) rotates at the same time.
  • the minute hand (not shown) attached to the barrel pin is configured to display “minute”.
  • the tube pinion is provided with a slip mechanism having a predetermined slip torque for the center wheel & pinion 124.
  • the minute wheel rotates based on the rotation of the cylinder pinion.
  • the hour wheel rotates based on the rotation of the minute wheel.
  • Hour hand attached to hour wheel Is configured to display the hour.
  • the barrel barrel 120 is supported rotatably with respect to the main plate 102 and barrel barrel 160.
  • the second wheel 1 2 4, the third wheel 1 2 6, the fourth wheel 1 2 8, and the escape wheel 1 330 are supported so that they can rotate with respect to the main plate 10 2 and the train wheel bridge 16 2 Is done.
  • the ankle 142 is supported rotatably with respect to the main plate 102 and the ankle receiver 164. (4) Balance of balance
  • the balance with hairspring 140 is rotatably supported with respect to the main plate 102 and the balance with hairspring 166.
  • the upper bell of the balance 140a is rotatably supported by the balance upper bearing 166a fixed to the balance holder 166.
  • the balance-top bearing 1666a includes a balance-top stone and a balance-top stone. Tophole stones and balance stones are made of insulating material such as ruby.
  • the balance 140 includes a balance 140 a, a balance wheel 140 O b, and a hairspring 144 c.
  • the lower rim of the balance 140a is supported so as to be rotatable with respect to the balance lower bearing 102 fixed to the plate 102.
  • the balance wheel bearing 102b includes a balance hole stone and a balance stone. Hypothetical stones and balance stones are made of insulating materials such as ruby.
  • the hairspring 140c is a thin leaf spring having a spiral shape with a plurality of windings.
  • the inner end of the hairspring 140 c is fixed to the beard ball fixed to the balance 140 a, and the outer end of the hairspring 140 c can be rotated to the balance spring 166.
  • the beard holder fixed to the frame is fixed with screws via the beard holder attached to the 166 a.
  • the balance with hairspring 166 is made of a metal conductive material such as brass.
  • Beard support 1 6 6a is made of a conductive material of metal such as iron.
  • the hairspring 140 c expands and contracts in the radial direction of the hairspring 140 c according to the rotation angle of the balance 140. For example, in the state shown in FIG. 1, when the balance 140 rotates clockwise, the hairspring 140 c becomes the center of the balance 140. When the balance 140 rotates counterclockwise, the hairspring 140 c expands away from the center of the balance 140.
  • the hairspring 140 c is made of a resilient material having a spring property such as “Elimber”. That is, the hairspring 140c is made of a metal conductive material.
  • the effective length of the hairspring 14 ° c is determined by rotating the needle 422 to determine the position of the whiskers 4 266 and the whiskers 428.
  • the effective length of the hairspring 140c is determined, the period of the rotational vibration of the balance 140 is determined, and the rate of the mechanical watch is determined.
  • the coils 180, 180a, 180b, and 180c force It is attached to the front surface of the main plate 102 so as to face the main plate side surface of the balance wheel 140b.
  • the number of coils is, for example, four as shown, but may be one, two, three, four or more. Is also good.
  • the balance magnet 140 e is attached to the side of the main plate 140 b so as to face the front surface of the main plate 102.
  • the circumferential distance between the coils is equal to the S-pole and N-pole circles of the balance magnet 140e arranged opposite to the coil. It is preferable that the interval is an integral multiple of the circumferential interval, but it is not necessary that all coils have the same interval in the circumferential direction. Further, in such a configuration having a plurality of coils, it is preferable that the wiring between the coils be wired in series so as not to cancel out the current generated in each coil by electromagnetic induction. . Alternatively, the wiring between the coils may be wired in parallel so that the currents generated in the coils due to the electromagnetic induction are not canceled each other.
  • the balance magnet 140 e has an annular (ring) shape, Along the circumferential direction, for example, magnet parts consisting of 12 S poles 140 s 1 to 140 s 12 polarized vertically and 12 N poles 140 n 1 to 140 n 12 are alternately arranged. ing.
  • the number of magnets arranged in an annular shape (ring shape) in the balance magnet 140e is 12 in the example shown in FIG.
  • it is preferable that the length of one chord of the magnet part is substantially equal to the outer diameter of one coil provided facing the magnet part.
  • a gap is provided between the balance magnet 140e and the coils 180, 180a. 180b, 180c.
  • the size of the gap STC between the balance magnet 140 e and the coils 180, 180 a, 180 b, 180 c is determined when the coils 180, 180 a, 180 b, 180 c are conducting. It has been determined that the magnetic force can affect the coils 180, 180a, 180b, 180c.
  • the magnetic force of the balance magnet 140e does not affect the coils 180, 180a, 180b, 180c.
  • the balance magnet 140 e contacts the balance wheel rim portion of the balance wheel 140 b with one surface in contact with the ring-shaped rim of the balance wheel 140 b and the other surface facing the front surface of the main plate 102. It is fixed by bonding or the like.
  • a first lead wire 182 is provided to connect one terminal of the coil 180 to the first coil terminal of the IC 642.
  • a second lead wire 184 is provided to connect one terminal of the coil 180c to the second coil terminal of the IC 642.
  • the thickness of the hairspring 140c (the thickness in the radial direction of the balance with hairspring) is exaggerated, but is, for example, 0.021 mm.
  • the balance magnet 140e has, for example, an outer diameter of about 9 millimeters, an inner diameter of about 7 millimeters, a thickness of about 1 millimeter, and a magnetic flux density of about 0.02 tesla.c coils 180, 180a , 180b, 180 c have the number of turns, It has 8 turns and the coil wire diameter is about 25 micrometers.
  • the gap STC between the balance magnet 14 Oe and the coils 180, 180a, 180b, 180c is, for example, about 0.4 mm.
  • a crystal oscillator 210 forms a source oscillation of a circuit for counting time.
  • the IC 642 includes a frequency dividing circuit 214, a modified pulse comparing circuit 216, a waveform modifying circuit 332, an electromagnetic brake operating circuit 340, and a rectifying circuit 342.
  • the frequency dividing circuit 214 receives an output signal output by the oscillation of the crystal oscillator 210, divides the signal, and outputs a signal relating to time.
  • the waveform correction circuit 332 corrects the waveform of the detection signal output from the rate detector.
  • the correction pulse comparison circuit 216 compares the frequency-divided signal output from the frequency division circuit 214 with the detection signal output from the waveform correction circuit 332.
  • the electromagnetic brake operation circuit 340 conducts the coils 180, 180a, 180b, 180c in response to the operation timing signal output from the waveform correction circuit 332 based on the signal output from the correction pulse comparison circuit 216.
  • an induced current is generated due to a change in magnetic flux of the balance magnet 140e. Due to this induced current, a force acting on the balance with hairspring 140 suppresses the rotational movement of the balance with hairspring 140.
  • a braking force is applied to the balance with hairspring 140 that suppresses the rotation of the balance with hairspring 140, and the swing angle of the balance with hairspring 140 can be reduced.
  • the rectifier circuit 342 is provided to rectify an induced current generated by a change in the magnetic flux of the balance magnet 140e while the coils 180, 180a, 180b, and 180c are conducting.
  • a power source for the storage member that is, the capacitor 352 to operate the IC 642 Is configured.
  • the current rectified by the rectifier circuit 342 is guided to the capacitor 352, and the electric energy generated by the induced current is stored in the capacitor 352.
  • the power storage member may be a rechargeable secondary battery or a rechargeable capacitor.
  • the rectifier circuit 342 may be built in the IC 642 as shown, or may be configured separately from the IC 642 using an external element.
  • the rectifier circuit 342 is preferably manufactured using a Schottky barrier diode (SBD).
  • SBD Schottky barrier diode
  • the IC 642 is preferably manufactured using “SOI technology”.
  • S 0 I technology means “silicon on insulator”.
  • SOI technology can reduce the capacitance of a transistor, increase operating speed, and reduce current consumption.
  • Substrates manufactured using “SOI technology” can be obtained, for example, from Komatsu Electronic Metals under the trade name “SIMOX”.
  • the train wheel 224 rotates with the mainspring 222 as a power source.
  • the minute hand 226 displays “minute”
  • the hour hand 228 displays "hour”.
  • the minute hand 2 2 6 is fixed to the center wheel & pinion 1 2 4.
  • the second wheel 1 2 4 is configured to make one revolution per hour.
  • the escape wheel 1 330 rotates.
  • the ankle 144 controls the rotation of the escape wheel 130 based on the operation of the balance 140.
  • Ankle detection piezoelectric element 3 3 6 is fixed to the first bin 1 102 d of main plate 102 Is done. Therefore, the pallet support 142d is configured to contact the pallet detecting piezoelectric element 336. At the moment when the pallet abutment 142d hits the pallet detecting piezoelectric element 336, the pallet detecting piezoelectric element 336 generates a voltage (see (4) in FIG. 8).
  • the pallet detecting piezoelectric element 336 constitutes a rate detecting unit 330 for detecting the rotational operation state of the wheel train.
  • the detection signal is input to the IC 642. Since the balance with hairspring 140 vibrates at 3 Hz, the rate detecting unit 330 outputs a detection signal at 3 Hz.
  • the waveform correction circuit 332 is configured to input a detection signal output from the pallet detecting piezoelectric element 336.
  • the modified pulse comparison circuit 216 measures the period of (1/3) seconds measured by the escapement / speed governor (see (1) in FIG. 6) and the IC 642 measures the period (1 / 3) It is configured to compare with the second period (see (2) in Fig. 6).
  • the rate detection unit 330 measures the escapement / governing device including the escape wheel 130, the ankle 142, and the balance 140 when the pallet abutment 142d hits the pallet detecting piezoelectric element 336 (1/3) ) Outputs a detection signal with a cycle of seconds to the IC 642.
  • rate detecting section 330 includes pallet fork 142 d and piezoelectric element 336 for pallet detection.
  • the frequency dividing circuit 214 The output signal of 32768 Hertz is divided and the frequency-divided signal of (1/3) second period is output to the modified pulse comparison circuit 216. It is.
  • the modified pulse comparison circuit 216 outputs a detection signal of the period (1/3) seconds measured by the escapement / speed governor (see (1) in FIG. 6), and the frequency divider 214 in the IC 642 outputs the signal. It is configured to compare a divided signal (see (2) in Fig. 6) with a period of (1/3) seconds and count the difference (see (3) in Fig. 6). This difference is the time to be corrected by adjusting the rate in the mechanical timepiece of the present invention.
  • the electromagnetic brake operation circuit 340 conducts the coils 180, 180a, 180b, 180c based on the signal output from the modified pulse comparison circuit 216.
  • Koinore 180, 180a, by 180b s 180 c is conductive, to suppress the braking force to rotation of the balance 1 40 in addition to the balance 140, reducing the swing angle of the balance 140.
  • the corrected pulse comparison circuit 216, the electromagnetic brake operation circuit 340, the balance magnet 140e, and the coils 180, 180a, 180b, 180c are used to control the operation of the balance 140. Make up the part.
  • the balance power generation control unit is configured to always control the operation of the balance 140, for example.
  • the rate of the mechanical timepiece can be adjusted so as to correspond to the difference shown in (3) of FIG.
  • the waveform correcting circuit 332 when the ankle contact 142d detects the contact of the ankle by hitting the pallet detecting piezoelectric element 336, the waveform correcting circuit 332 outputs the pallet detecting piezoelectric element 336.
  • the detection signal is input c
  • the waveform correction circuit 332 inputs the detection signal counted by the uncle detection signal counting unit, shapes the waveform, and outputs a correction signal as shown in (5) of FIG.
  • the frequency dividing circuit 214 outputs a frequency-divided signal as shown in (2) of FIG. 6 to the modified pulse comparing circuit 216.
  • the correction pulse comparison circuit 216 outputs the (1/3) second period output signal (see (1) in FIG.
  • the modified pulse comparison circuit 216 inputs the signal of (5) in FIG. 8, the timing at which the ankle tip 142 d hits the pallet detecting piezoelectric element 336 can be determined. Know the timing. Therefore, it is possible to detect the rotation direction in which the balance with hairspring 140 is rotating and the timing of the center of the rotational vibration of the balance with hairspring 140 from the timing of stopping the ankle 142.
  • the corrected pulse comparison circuit 216 compares the period of (1/3) seconds measured by the escapement / speed governor with the period of (1/3) seconds measured by the IC 642 to determine the rate of the watch. Determine if the watch is moving ahead or if the watch is running slowly.
  • the hairspring 140 c expands and contracts in the semi-suspicious direction of the hairspring 140 c according to the rotation angle of the balance 140. For example, in the state shown in FIG. 2, when the balance with hairspring 140 rotates clockwise, the hairspring 140 c contracts in a direction toward the center of the balance with hairspring 140, whereas the balance with hairspring 140 rotates counterclockwise. Then, the hairspring 140 c expands in a direction away from the center of the balance 140 c.
  • the balance power generation control unit 350 of the mechanical watch of the present invention applies the “Airy's theorem”. By controlling the rotation of the balance with hairspring 140, the period of the rotation vibration of the balance with hairspring is changed.
  • Such control of the rotation of the balance with hairspring 140 may be performed at a certain time interval from the center of the rotational vibration of the balance with hairspring 140, or may include the center of the rotational vibration of the balance with hairspring 140. It may be performed over a certain time interval. That is, the balance power generation control unit 350 of the mechanical watch of the present invention If the degree of advance is advanced, it is configured to apply a brake to the rotation of the balance with hairspring at a timing before the center of rotation of the balance with hairspring 140 (timing t1 in (5) in Fig. 8). .
  • the balance power generation control unit 350 of the mechanical timepiece performs the timing after passing the center of the rotational vibration of the timepiece 140 (FIG. 8 (5)). At the timing of t2), it is configured to brake the rotation of the balance 140.
  • the timing at which the electromagnetic brake actuation circuit 340 operates to turn on the coils 180, 180a, 180b, 180c is determined in response to the signal output from the waveform correction circuit 332. Then, the duration for which the electromagnetic brake operation circuit 340 operates to conduct the coils 180, 180a, 180b, 180c is determined based on the signal output from the modified pulse comparison circuit 216.
  • the coil when the rate of the mechanical timepiece is advanced, the coil is set at a timing before the center of rotation of the balance with hairspring 140 (timing of tl in (5) of FIG. 8).
  • 180, 180a, 180b, 180c conduct, and the magnetic flux of the balance magnet 140e affects the coils 180, 180a, 180b, 180c.
  • the period of the rotational vibration of the balance with hairspring 140 is reduced by the action of the balance with hairspring 140e and the coils 180, 180a, 180b, and 180c.
  • the mechanical timepiece of the present invention when the rate of the mechanical timepiece is delayed, the timing after passing the center of the rotational oscillation of the balance 140 (the timing of t 2 in (5) of FIG. 8) ), The coils 180, 180a, 180b, 180c conduct, and the magnetic flux of the balance magnet 140e affects the coils 180, 180a, 180b, 180c. As a result, the period of the rotational vibration of the balance with hairspring 140 is increased by the action of the balance with the balance magnet 140e and the coils 180, 180a, 180b, and 180c. In the mechanical timepiece of the present invention configured as described above, the period of the rotational vibration of the balance with hairspring 140 can be efficiently controlled.
  • the value of the time for adjusting the period of the rotational vibration of the balance with hairspring 140 is determined in advance by the rate of the mechanical watch and the conduction of the coils 180, 180a, 180b, 180c. It is preferable that the relationship with the change in the cycle of the rotational vibration of the balance with hairspring 140 due to the induced current generated by the change in the magnetic flux of the balance with hairspring 140e is obtained by an experiment and stored in the corrected pulse comparison circuit 216.
  • the rate of a mechanical timepiece can be adjusted with high accuracy.
  • the coils 180, 180a, 180b, and 180c are conducted at a certain time interval including the center of the rotational vibration of the balance with hairspring 140.
  • the magnetic flux of the balance magnet 140e changes due to the rotational vibration of the balance 140.
  • the coil 180, 180a, induced current 180b, induced current 180 c is c generated generated is rectified by the rectifier circuit 342, storage member, i.e., is stored in capacitor 352. Therefore, the capacitor 352 constitutes a power supply for operating the IC 642.
  • the fixed time interval including the center of rotation of balance 140 means, for example, that the swing angle is plus or minus 30 degrees from the center of balance vibration (right rotation is plus and left rotation is plus). It can be set between the time interval corresponding to the range of (when minus) and the time interval corresponding to the swing angle of plus or minus 120 degrees from the center of vibration of the balance with hairspring.
  • the amount of induction current generated in the coils 180, 180a, 180b, and 180c is adjusted at certain time intervals including the center of the rotational oscillation of the balance with hairspring 140, Efficient cycle of rotational vibration of balance 140 Can be controlled.
  • circuits for performing various functions may be configured in the IC, and the IC may be a PL A-IC incorporating programs for performing various operations.
  • an external element such as a resistor, a capacitor, a coil, a diode, and a transistor can be used together with the IC as required.
  • the mainspring torque of the mainspring is set to 60 g ⁇ cm.
  • Manufacture mechanical watches to use 5 g ⁇ cm of this spring torque for power generation.
  • the reduction ratio of the gears from the barrel wheel containing the mainspring to the escape wheel is 1/5040.
  • the combined efficiency of the train wheel and the escapement is 30%.
  • the radius r of the balance wheel of the balance with hairspring is 0.42 cm
  • the width of the balance with hairspring is 0.04 cm
  • the distance between the balance coil and the coil is, for example, 0 mm. Assume it is .04 cm.
  • the balance wheel torque is the balance wheel torque
  • the force of the outer ring of the balance wheel is
  • the power required to drive the crystal unit and I C per second is, when using a substrate manufactured by S 0 I technology, I C including the frequency divider,
  • the power required to drive the crystal unit and IC per second is 0.09 [ ⁇ W], and the energy ⁇ ⁇ generated in the coil per second is 0.12 iuW]. It was confirmed that the embodiment of the mechanical timepiece of the invention works reliably.
  • no booster circuit is used.
  • the rectifier when a rectifier is configured using a Schottky barrier diode, the rectifier needs 0.2 [V]. 1.5 [V] is required. Therefore, the maximum voltage generated in the coil must be 2 [V].
  • the voltage generated in the coil was about 2.36 [V]. Therefore, it was confirmed that in the embodiment of the mechanical timepiece of the present invention, the capacitor can be charged without using the booster circuit.
  • the mechanical timepiece of the present invention is suitable for producing a high-precision mechanical timepiece.
  • the rate of rotation of the balance with hairspring can be controlled using the balance magnet to accurately adjust the rate.

Abstract

L'invention concerne un dispositif d'horlogerie mécanique pourvu d'un ressort principal, de rouages avant et d'un dispositif d'échappement/avancement régulateur de vitesse, le dispositif d'échappement/avancement régulateur de vitesse comprenant un balancier annulaire réglé, une roue d'échappement et une ancre. Le dispositif d'horlogerie comprend également un oscillateur à quartz générant une vibration source ; un circuit intégré pourvu d'un élément de séparation servant à l'introduction des signaux de sortie produits par l'oscillation de l'oscillateur à quartz, à la division des signaux, et à l'émission des signaux associés à une heure ; un élément de stockage fonctionnel du circuit intégré ; un élément de détection de fréquence servant à détecter la fréquence du dispositif d'horlogerie ; et un élément de commande générateur de puissance du balancier annulaire réglé, destiné à régler la fréquence de l'oscillation rotative du balancier annulaire réglé et à générer de l'énergie par l'oscillation rotative du balancier annulaire réglé, à partir des signaux divisés par l'élément de séparation et des signaux d'état fonctionnel indiquant la fréquence détectée par l'élément de détection de fréquence, la rotation du balancier annulaire réglé pouvant ainsi être réglée avec exactitude, ainsi que la fréquence du dispositif d'horlogerie.
PCT/JP2000/000679 1999-12-24 2000-02-08 Dispositif d'horlogerie mecanique pourvu d'un mecanisme de commande generateur de puissance du balancier annulaire regle WO2001048567A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00902142A EP1241538A4 (fr) 1999-12-24 2000-02-08 Dispositif d'horlogerie mecanique pourvu d'un mecanisme de commande generateur de puissance du balancier annulaire regle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP1999/007290 WO2001048565A1 (fr) 1999-12-24 1999-12-24 Montre mecanique avec unite de commande de rouage
JPPCT/JP99/07290 1999-12-24

Publications (1)

Publication Number Publication Date
WO2001048567A1 true WO2001048567A1 (fr) 2001-07-05

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PCT/JP1999/007290 WO2001048565A1 (fr) 1999-06-29 1999-12-24 Montre mecanique avec unite de commande de rouage
PCT/JP2000/000679 WO2001048567A1 (fr) 1999-12-24 2000-02-08 Dispositif d'horlogerie mecanique pourvu d'un mecanisme de commande generateur de puissance du balancier annulaire regle

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PCT/JP1999/007290 WO2001048565A1 (fr) 1999-06-29 1999-12-24 Montre mecanique avec unite de commande de rouage

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EP (2) EP1164441A1 (fr)
CN (2) CN1347520A (fr)
HK (1) HK1046170A1 (fr)
WO (2) WO2001048565A1 (fr)

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EP1359476A1 (fr) * 2002-05-02 2003-11-05 Zenith International SA Pièce d'horlogerie mécanique à tourbillon
EP1437634A1 (fr) * 2002-12-19 2004-07-14 Glashütter Uhrenbetrieb GmbH Dispositif de réglage fin pour balancier-spiral
JP4714579B2 (ja) * 2005-12-26 2011-06-29 セイコーインスツル株式会社 時計
CH705118B1 (fr) * 2007-12-27 2012-12-31 Chopard Technologies Sa Mouvement horloger comportant un organe réglant à fréquence d'oscillation élevée.
CH707005B1 (fr) * 2012-09-25 2023-02-15 Richemont Int Sa Mouvement de montre-chronographe avec barillet et régulateur à quartz.
CN109690424B (zh) * 2016-03-14 2021-07-16 Lvmh瑞士制造公司 用于钟表的装置、包括该装置的钟表装置机芯和钟表
BE1024256B1 (nl) * 2016-06-02 2018-01-16 Mintiens Benoît Mechanisch uurwerk.
EP3339982B1 (fr) * 2016-12-23 2021-08-25 The Swatch Group Research and Development Ltd Régulation par freinage mécanique d'un oscillateur mécanique horloger
EP3602206B1 (fr) 2017-03-28 2020-12-30 The Swatch Group Research and Development Ltd Pièce d'horlogerie mécanique comprenant un mouvement dont la marche est améliorée par un dispositif de correction
US11300929B2 (en) 2017-03-28 2022-04-12 The Swatch Group Research And Development Ltd Timepiece comprising a mechanical movement which running is enhanced by a regulation device
EP3502798B1 (fr) * 2017-12-20 2020-06-24 The Swatch Group Research and Development Ltd Piece d'horlogerie comprenant un oscillateur mecanique associe a un systeme de regulation
EP3502796B1 (fr) * 2017-12-20 2020-05-20 The Swatch Group Research and Development Ltd Piece d'horlogerie comprenant un oscillateur mecanique associe a un systeme de regulation
EP3502797B1 (fr) 2017-12-20 2020-07-08 The Swatch Group Research and Development Ltd Piece d'horlogerie comprenant un oscillateur mecanique associe a un systeme de regulation
EP3540528B1 (fr) * 2018-03-16 2020-08-05 The Swatch Group Research and Development Ltd Pièce d'horlogerie comprenant un mouvement mécanique dont la marche est régulée par un dispositif électronique
CH715091A2 (fr) * 2018-06-07 2019-12-30 Swatch Group Res & Dev Ltd Pièce d'horlogerie comprenant un mouvement mécanique dont la marche est régulée par un dispositif électromécanique.
EP3629104B1 (fr) * 2018-09-27 2021-05-12 The Swatch Group Research and Development Ltd Piece d'horlogerie mécanique comportant un dispositif electronique de regulation de la précision de marche de la pièce d'horlogerie
EP3629103B1 (fr) * 2018-09-28 2021-05-12 The Swatch Group Research and Development Ltd Pièce d'horlogerie comprenant un mouvement mécanique dont la marche est régulée par un dispositif électronique
EP3770694B1 (fr) * 2019-07-23 2021-12-08 Omega SA Stop-cage d'horlogerie comportant deux elements elastiques d'arret

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Also Published As

Publication number Publication date
EP1241538A1 (fr) 2002-09-18
EP1164441A1 (fr) 2001-12-19
CN1434933A (zh) 2003-08-06
HK1046170A1 (zh) 2002-12-27
WO2001048565A1 (fr) 2001-07-05
CN1347520A (zh) 2002-05-01
EP1241538A4 (fr) 2005-06-15

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