WO2001053896A1 - Procede de fabrication d'une montre mecanique - Google Patents

Procede de fabrication d'une montre mecanique Download PDF

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Publication number
WO2001053896A1
WO2001053896A1 PCT/JP2000/000283 JP0000283W WO0153896A1 WO 2001053896 A1 WO2001053896 A1 WO 2001053896A1 JP 0000283 W JP0000283 W JP 0000283W WO 0153896 A1 WO0153896 A1 WO 0153896A1
Authority
WO
WIPO (PCT)
Prior art keywords
balance
hairspring
rate
wheel
piezoelectric element
Prior art date
Application number
PCT/JP2000/000283
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 CN00805391A priority Critical patent/CN1344386A/zh
Priority to EP00900862A priority patent/EP1172716A1/fr
Priority to PCT/JP2000/000283 priority patent/WO2001053896A1/fr
Priority to EP00902140A priority patent/EP1158373A4/fr
Priority to PCT/JP2000/000677 priority patent/WO2001048566A1/fr
Priority to CN00806505A priority patent/CN1347520A/zh
Publication of WO2001053896A1 publication Critical patent/WO2001053896A1/fr
Priority to HK02107000.1A priority patent/HK1045570A1/zh
Priority to HK02107307.1A priority patent/HK1046039A1/zh

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C11/00—Synchronisation of independently-driven clocks
    • G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
    • G04C11/085—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-motor
    • G04C11/088—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-motor acting on the balance
    • 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

Definitions

  • the present invention relates to a method for manufacturing a mechanical timepiece.
  • the present invention relates to a movement of a mechanical timepiece, in which the length of a hairspring of a balance is lengthened or shortened by using a piezoelectric element to adjust the effective length of the hairspring.
  • the present invention relates to a method of manufacturing a mechanical watch capable of accurately adjusting the rate of the watch and manufacturing a high-precision mechanical watch.
  • the movement (mechanical body) 110 of the mechanical timepiece is constituted by a ground plate 1102 constituting a substrate of the movement. Have.
  • 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 0.
  • Square hole wheel 1 1 1 6 force Rotation by rotation of round hole wheel 1 1 1 4
  • the mainspring 1 1 2 2 housed in the barrel box 1 1 2 0 is wound up as the square wheel 1 1 1 6 rotates.
  • the second wheel 1 1 2 4 is rotated by the rotation of the barrel 1 1 2 0.
  • the escape wheel 1 1 3 0 rotates through the rotation of the 4th wheel 1 1 2 8, the 3rd wheel 1 1 2 6, and the 2nd wheel 1 1 2 4.
  • Incense box 1 1 2 0, 2nd wheel 1 1 2 4, 3rd wheel 1 1 2 6 and 4th wheel 1 1 2 8 constitute a front wheel train.
  • 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 main 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 1 140c is fixed to a 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 1 170a attached to the receiver 1 170.
  • a needle 1168 is rotatably mounted on the balance 1166.
  • a beard holder 1168a and a beard bar 1168b are attached to the needle 1168.
  • the portion of the hairspring 1140c near the outer end is located between the whiskers 1168a and the whiskers 1168b.
  • the mainspring torque decreases as the duration of the mainspring is rewound from a state in which the mainspring is completely wound up (full winding state).
  • the mainspring torque is about 27 gcm when fully wound, about 23 gcm after 20 hours from full winding, and about 18 gcm when 40 hours after fully winding.
  • the swing angle of the balance with hairspring when the mainspring torque decreases, the swing angle of the balance with hairspring also decreases.
  • the swing angle of the balance with hairspring when the mainspring torque is 25 to 28 gcm, 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 angle of the balance with hairspring is about 180 to 240 degrees. is there.
  • instantaneous rate or “rate” means “mechanical watch left for one day while maintaining the state and environment such as the swing angle of the balance with the balance when measuring the rate. A value indicating the advance or delay of a mechanical watch when the sun has passed. " The “rate” is indicated by H.
  • the instantaneous rate is about 0 to 5 seconds / day (leading about 0 to 5 seconds per day).
  • the instantaneous rate is about -20 seconds, which is about 20 seconds behind each statement.
  • the mainspring torque decreases and the swing angle of the balance with hairspring decreases, so 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 direction from the center of the mechanical watch to the 12 o'clock scale on the dial is called the 12 o'clock direction.
  • the direction from the center of the dial toward the 3 o'clock scale is called the ⁇ 3 o'clock direction ''
  • the direction from the center of the mechanical watch to the 6 o'clock scale on the dial is called the ⁇ 6 o'clock direction ''.
  • the direction from the center toward the 9 o'clock scale on the dial is called the “9 o'clock direction” (see Figure 9).
  • the rate when the mechanical watch is in the 12 o'clock position is referred to as “1 2 upper rate”
  • the “rate when the mechanical watch is in the 3 o'clock position” is " The rate when the mechanical watch is in the 6 o'clock position is referred to as ⁇ 3 upper rate ''
  • the rate when the mechanical watch is in the 6 o'clock position is referred to as ⁇ 6 upper rate ''
  • the rate when the mechanical watch is in the 9 o'clock position is Called "9 higher rate”.
  • the balance (mechanical body) 110 of the assembled mechanical watch is manually removed from the balance 1101 by hand, and the balance is manually adjusted.
  • an object of the present invention is to provide a method of manufacturing a mechanical timepiece that can adjust the rate of the mechanical timepiece without removing the balance from the movement (mechanical body) of the mechanical timepiece.
  • the present invention provides a mainspring constituting a power source of a mechanical timepiece, and a mainspring being unwound.
  • the escapement / governing device for controlling the rotation of the front wheel train.
  • the escapement / governing device performs clockwise and counterclockwise rotation.
  • the balance comprises a balance wheel, an escape wheel that rotates based on the rotation of the front train wheel, and an ankle that controls the rotation of the escape wheel based on the operation of the balance wheel. This is a method for manufacturing a mechanical timepiece provided with a movement configured to include a tonnage and a balance wheel.
  • the method for manufacturing a mechanical timepiece according to the present invention comprises:
  • the measurement of the rate in the step (b) includes the steps of “12 o'clock position”, “3 o'clock position”, “6 o'clock position”, “ It is preferable to be carried out for four “vertical postures” of “9 o'clock above”.
  • the measurement of the rate in the step (b) is performed by measuring the operation of the balance with the hairspring being wound up by using a balance operation measuring device.
  • the operation of the balance with hairspring is measured by the two light-receiving parts receiving light emitted from a light source arranged to illuminate the balance with hair.
  • the balance operation measuring device previously stores a relationship between a cycle of light incident on the light receiving unit and a swing angle of the balance with hairspring, whereby The calculation of the swing angle is preferably performed using the period of the light incident on the light receiving unit.
  • the movement of the mechanical timepiece includes a piezoelectric element lead substrate, and the first pattern and the second pattern are provided on the piezoelectric element lead substrate.
  • the pulse for driving the piezoelectric element is output from the piezoelectric element driving device in a first pattern and a second pattern.
  • the piezoelectric element lead substrate is screwed to the ground plate using a substrate set screw, It is preferable that the first pattern and the second pattern of the piezoelectric element lead substrate be electrically connected.
  • the rate of the mechanical timepiece can be adjusted very easily without removing the balance from the movement of the mechanical timepiece. Further, by using the method for manufacturing a mechanical timepiece of the present invention, the rate of the mechanical timepiece can be accurately adjusted in a short time and with extremely high accuracy.
  • FIG. 1 is a plan view showing a schematic shape of a front side of a movement of a mechanical timepiece manufactured by using the method of manufacturing a mechanical timepiece of the present invention. (In FIG. 1, some parts are omitted and a receiving member is omitted. Is indicated by a virtual line).
  • FIG. 2 is an enlarged partial cross-sectional view showing a balance with a balance with hairspring and balance before adjusting the rate in a movement of a mechanical timepiece manufactured using the method of manufacturing a mechanical timepiece of the present invention.
  • FIG. 3 is a partial cross-sectional view showing a movement of a mechanical timepiece manufactured by using the method for manufacturing a mechanical timepiece of the present invention.
  • FIG. 4 is a partial cross-sectional view showing a state in which a movement of a mechanical timepiece is manufactured using the method for manufacturing a mechanical timepiece of the present invention.
  • FIG. 5 is a flowchart schematically showing a step of adjusting a rate in the method of manufacturing a mechanical timepiece according to the present invention.
  • FIG. 6 is a flowchart showing details of the step of adjusting the rate in the method of manufacturing a mechanical timepiece according to the present invention.
  • FIG. 7 schematically shows the relationship between the swing angle of the balance with hairspring before the rate adjustment and the rate in four postures in a mechanical timepiece to be manufactured using the method for manufacturing a mechanical timepiece of the present invention. It is a graph.
  • FIG. 8 is a graph schematically showing the relationship between the swing angle of the balance with hairspring and the rate in four postures in a mechanical timepiece whose rate has been adjusted using the method of manufacturing a mechanical timepiece of the present invention.
  • FIG. 9 is a graph showing in detail the relationship between the swing angle of the balance with hair and the rates in four postures in a mechanical timepiece whose rate has been adjusted using the method for manufacturing a mechanical timepiece of the present invention.
  • FIG. 10 is a plan view showing the schematic shape of the front side of a conventional mechanical watch movement (in FIG. 10, some parts are omitted and the receiving member is shown by phantom lines).
  • FIG. 11 is a schematic partial cross-sectional view of a movement of a conventional mechanical timepiece (in FIG. 11, some parts are omitted).
  • a movement (machine body) 400 of the mechanical timepiece is assembled.
  • the movement 100 of the mechanical watch is composed of the main plate 100 that constitutes the movement substrate.
  • the dial 104 (shown by phantom lines in FIG. 3) is attached to the movement 100 after adjusting the rate using the method of manufacturing a mechanical timepiece of the present invention.
  • the dial 104 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 (neither scale is shown).
  • 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 second tooth is located at the end of the wheel closer to the outside of the movement.
  • the movement 400 incorporates a switching device for determining the position of the winding stem 110 in the axial direction.
  • 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 portion of the winding stem 110.
  • the winding stem 1 110 is the first winding stem closest to the inside of the movement 400 along the axis of rotation.
  • 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 400 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 400 incorporates an escapement / 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 balance 140 includes a balance 140a, a balance wheel 140b, and a hairspring 144c.
  • Four balance arms 14 O f (referred to as “Amida”) for connecting the balance 140 a and the balance wheel 140 b are provided.
  • the number of the balance arm portions 14Of may be two, three, or four or more.
  • the hairspring 140c is made of an elastic material having a spring property such as "Erinba”. That is, the hairspring 140c is made of a metal conductive material.
  • the cylinder pinion (not shown) rotates simultaneously.
  • a minute hand (not shown) attached to the barrel is configured to display “minute”.
  • a slip mechanism having a predetermined slip torque for the center wheel & pinion 124 is installed in the cylinder. Be killed.
  • the minute wheel rotates based on the rotation of the cylinder pinion.
  • the hour wheel rotates based on the rotation of the reverse wheel.
  • An hour hand (not shown) attached to the hour wheel is configured to display "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.
  • the balance with hairspring 140 is rotatably supported with respect to the main plate 102 and the balance with hairspring 166.
  • the upper bell 140 a 1 of the balance 140 a is supported rotatably with respect to the balance upper bearing 166 a fixed to the balance holder 166.
  • the balance-top bearing 1 66 a includes a balance-top stone and a balance-top stone. Balance stones and stones are made of insulating material such as ruby.
  • a balance measuring window portion 102 h for measuring the rotation operation of the balance arm portion 140 f of the balance with hairspring 140 is provided on the main plate 102.
  • the balance arm 140 f rotates so as to cross the balance measurement window 102 h.
  • the lower border 140a2 of the balance 140a is rotatably supported with respect to the balance lower bearing 102b fixed to the main plate 102.
  • the balance wheel bearing 102b includes a balance hole stone and a balance stone. Hypothetical pits and trowels 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 140c is fixed to a beard ball 140d fixed to the balance 140a.
  • 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 situation shown in Figure 1 and Figure 2, As the balance 140 rotates clockwise, the hairspring 140 c contracts in the direction toward the center of the balance 140, whereas when the balance 140 rotates counterclockwise, The hairspring 140 c expands away from the center of the balance 140.
  • Beard support 4 3 0 is fixed to balance 1 6 6.
  • the beard holder 4 5 6 is fixed to the beard holder 4 3 0.
  • the balance spring control piezoelectric element 4 54 is fixed to the beard holder 4 30.
  • the hairspring control piezoelectric element 4 54 is provided so as to contact a portion of the hairspring 140 c closer to the outer end thereof, and moves the hairspring 140 c in and out in the longitudinal direction. It is provided in order to make it.
  • a hairspring presser spring 4 52 is provided to press a portion closer to the outer end of the hairspring 140 c. Therefore, a portion closer to the outer end of the hairspring 140c is disposed between the hairspring control piezoelectric element 454 and the hairspring presser spring 452.
  • the hairspring presser spring 4 52 is formed of an elastic material such as metal.
  • the piezoelectric element lead substrate 420 is arranged on the ground plane 102.
  • the piezoelectric element lead substrate 420 has a first pattern 420a and a second pattern 42Ob.
  • a first lead wire 422 is provided for connecting the hairspring control piezoelectric element 454 to the first pattern 420a.
  • a second lead wire 424 is provided to connect the hairspring control piezoelectric element 454 with the second pattern 42 Ob.
  • the base set screw 4 28 connects the piezoelectric element lead substrate 4 20 to the base plate 10 2 Screw.
  • the first pattern 420a and the second pattern 42Ob of the piezoelectric element lead substrate 420 are conductive (short).
  • a movement 100 of the mechanical timepiece is assembled.
  • the winding stem 1 110, the round hole wheel 1 1 4, the square wheel 1 1 12, the square hole wheel 1 1 6, the round hole wheel 1 1 4, the switching device, Front wheel train, escapement, speed governor, cylinder pinion, sun wheel, hour wheel, etc. act on the main plate 102 or the receiving members 160, 162, 1666, etc. Incorporated where possible.
  • the escapement / governing device has a balance wheel 140 that alternately rotates clockwise and counterclockwise, an escape wheel 1330 that rotates based on the rotation of the front train wheel, and a balance wheel 14. And an ankle 142 for controlling the rotation of the escape wheel 130 based on the operation of the zero.
  • the balance 140 includes a balance 140a, a balance wheel 14Ob, and a hairspring 144c.
  • the rate of operation of the mechanical watch is measured by measuring the operation state of the balance 140 in a plurality of postures with the assembled movement arranged in the “vertical posture”.
  • the measurement of the rate is performed for four postures of, for example, "posture at 12:00”, “posture at 3:00”, “posture at 6:00”, and "posture at 9:00".
  • Such a measurement of the rate may be performed for two or more “vertical postures”.
  • the measurement of the rate is "1 2 o'clock position", “3 o'clock position”, “6 o'clock position”, Positions other than “9 o'clock position”, for example, “1 o'clock position”, “2 o'clock position”, “4 o'clock position”, “5 o'clock position”, “7 o'clock position”
  • the posture, the posture at 8 o'clock, the posture at 10 o'clock, the posture at 11 o'clock, and the like may be performed.
  • the measurement of the rate may be performed for a plurality of postures among the above-described “vertical postures” of 12.
  • the swing angle of the balance with hairspring is adjusted with the movement of the mechanical watch in the "flat position" (step S1 in Fig. 6).
  • the swing angle of the balance with hairspring can be adjusted by engaging a gear provided outside the movement with a square wheel, winding up the mainspring, and measuring the number of turns of the mainspring.
  • adjustment of the swing angle of the balance with hairspring can be performed by measuring the operation of the balance with hairspring while winding up the mainspring, using a balance with hairspring measuring device as described later.
  • a light source 460 is arranged to illuminate the balance arm portion 140f.
  • Two light receiving sections 46 2 a and 46 2 b are provided to receive the light illuminating the balance arm section 140 f.
  • the two light receiving sections 46 2 a and 46 2 b are arranged at a distance from each other so as to be in the direction of rotation of the balance with hairspring, that is, at a position substantially equal to the center of rotation of the balance with hairspring.
  • the balance arm portion 140f operates between the light source 460 and the light receiving portions 462a and 462b.
  • the balance arm portion 140f When the balance arm portion 140f is between the light source 460 and the light receiving portion 462, the light emitted by the light source 460 is blocked by the balance arm portion 140, and the light receiving portion 462 It does not enter a, 4 62 b.
  • the balance arm portion 140f when the balance arm portion 140f is not located between the light source 460 and the light receiving portions 462 & and 462b, the light emitted from the light source 460 is not reflected by the light receiving portion 462.
  • the light receiving sections 4 62 a and 46 2 b are, for example, optical fiber It consists of a capacitor, CCD or diode.
  • the light receiving sections 4 62 a and 4 62 b are connected to the balance operation measuring device 4 64.
  • the balance operation measuring device 464 measures the operation of the balance arm portion 140f and calculates the direction of rotation of the balance with hairspring 140, the rotation cycle of the balance with hairspring, and the swing angle of the balance with hairspring. Be killed.
  • the balance operation measuring device 464 stores in advance the relationship between the cycle of light incident on the light receiving sections 462a and 4622b and the swing angle of the balance with hairspring. Therefore, the calculation of the swing angle of the balance with hairspring 140 can be performed using the cycle of the light incident on the light receiving sections 462a and 462b.
  • the swing angle of the balance with hairspring includes at least 150 degrees and 250 degrees.
  • the swing angle of the balance with hairspring may include other angles, and may include angles such as 160 degrees, 180 degrees, 200 degrees, 220 degrees, and 240 degrees.
  • the posture of the assembled movement is moved before measuring the “rate” (step S 2 in FIG. 6).
  • step S 4 It is determined whether or not the stage of measuring the “rate” by arranging the assembled movements in all the predetermined “vertical postures” has been completed (step S 4 in FIG. 6). If the step for measuring the “rate” has not been completed, return to step S1 and assemble to the next “vertical posture”. The movement is measured and the "rate” is measured. When all the steps for measuring the “rate” have been completed, the process proceeds to the next step S5.
  • FIG. 7 there is shown an example of a measurement result of “rate” of the assembled movement.
  • the swing angle of the balance changes from 100 degrees to 250 degrees
  • the "rate” of the "upper posture at 12:00” changes from about +87 seconds / day to about -7 seconds / day.
  • the "rate” of "posture at 3 o'clock” changes from about +60 seconds / day to about +15 seconds / day
  • the "rate” of "posture at 6 o'clock” is about +52 seconds / day. From this, it can be seen that it changes about +8 seconds / day, and that the "rate” of the "posture at 9 o'clock” changes from about +64 seconds / day to about 0 seconds.
  • the posture difference satisfies the standard, and it is determined that the rate adjustment is unnecessary (step S5 in FIG. 6). In this case, the work of the rate adjustment ends.
  • the total adjustment amount of the balance with hairspring is calculated (step S6 in FIG. 6).
  • the total balance Zc of the balance with hairspring is the average of the rates of the four postures when the swing angle of the balance with hair is 150 degrees, and the swing angle of the balance with hairspring is 250 degrees. It can be obtained based on the data of the preliminary experiment, using the “slope” and “intercept” of a straight line connecting the average of the rates of the four postures at a given time.
  • the “intercept” is a coordinate value when a certain straight line intersects a reference axis (for example, a vertical axis Y axis).
  • “Slope” is the tangent of the angle of inclination (tangent) when a straight line intersects a reference axis (eg, horizontal axis X-axis).
  • a is “slope” and is “intercept”.
  • the "winding angle” is defined as the angle in the circumferential direction with the rotation center of the balance being the origin, and the circumference is defined as a reference to the position where the hairspring is fixed to the beard ball, up to the position where the beard bar is located. The angle of the direction.
  • the winding angle of the hairspring is estimated.
  • the difference (length difference) between the length of the hairspring (adjusted length) and the actual length (actual length) of the hairspring on the mechanical watch is calculated.
  • the length of the hairspring can be adjusted, and the rate of the mechanical watch can be adjusted.
  • a preliminary experiment is performed in advance on a sample of the same model as the mechanical watch whose rate is to be adjusted, and the total adjustment amount of the balance with hairspring is determined using the result.
  • the step of adjusting the rate using the method of manufacturing a mechanical timepiece will be described.
  • the value of the frequency at which the balance spring control piezoelectric element 4 54 vibrates is the natural frequency of the balance spring pressing spring 4 52. Is configured to be larger than the value of.
  • the timing of the vibration of the balance spring control piezoelectric element 454 is adjusted in accordance with the operation of the balance spring 140 c of the balance 140.
  • the rate In a mechanical timepiece, the rate generally decreases as the effective length of the vibration of the hairspring 140 c increases, and increases as the effective length of the vibration of the hairspring 140 c decreases. Therefore, if the balance operation measuring device 464 determines that the rate of the mechanical watch is progressing, the balance spring is rotating when the balance 140 is rotating clockwise (clockwise).
  • the piezoelectric element drive 4 6 6 is a piezoelectric element drive control signal output by the balance operation measuring apparatus 4 6 4 Based on the above, a pulse for driving the piezoelectric element is output to the balance spring control piezoelectric element 45 4.
  • the piezoelectric element driving device 466 controls the piezoelectric element based on the piezoelectric element driving control signal output from the balance operation measuring device 466.
  • the drive pulse is output to the balance spring control piezoelectric element 4 5 4.
  • the pulse for driving the piezoelectric element is output from the piezoelectric element driving device 466 to the first pattern 420 a of the piezoelectric element lead board 420 via the first driving terminal 430, and the piezoelectric element driving device The signal is output from 466 to the second pattern 420 b of the piezoelectric element lead board 420 via the second drive terminal 432.
  • the effective length of the vibration of the hairspring 140c can be increased or decreased.
  • the amount by which the effective length of the hairspring 140c vibrates or the amount by which the effective length must be reduced is, as described above, when the swing angle of the balance with hairspring is 150 degrees.
  • the winding angle of the hairspring 140 c is estimated.
  • the difference (length difference) between the length (adjusted length) of the hairspring 140 c and the actual length (actual length) of the hairspring 140 c in the mechanical watch is calculated. calculate.
  • the piezoelectric element is driven by the piezoelectric element driving device 466. Drive and adjust the length of the hairspring 140 c.
  • a program for calculating the difference between the length of the preliminary experiment and the length difference is stored in advance in the piezoelectric element driving device 466.
  • the board set screw 4 28 connects the piezoelectric element lead board 4 20 to the base plate 10 10. Tighten the screw to 2.
  • the first pattern 420a and the second pattern 420b of the piezoelectric element lead substrate 420 are conductive (short).
  • the hairspring 140c is reliably adjusted after the adjustment. Can be held.
  • FIGS. 1 and 3 show the movement of the mechanical timepiece after the rate has been adjusted using the method for manufacturing a mechanical timepiece of the present invention.
  • FIG. 8 and FIG. 9 show an example of a measurement result of the “rate” of the movement after adjusting the rate using the method of manufacturing a mechanical timepiece of the present invention.
  • the “rate” of “posture at 12:00” is about From +7 seconds / day to about —9 seconds / day
  • the “rate” of “posture at 3 o'clock” changes from about—17 seconds / day to about +13 seconds / day
  • the “rate” of the “upper posture” changes from about 15 seconds / day to about +4 seconds / day
  • the “rate” of the “9 o'clock posture” changes from about—14 seconds / day to about 1 It can be seen that it has changed to 3 seconds / say.
  • the value of “rate” after adjusting the rate by the method of manufacturing a mechanical timepiece of the present invention is a value that shows extremely good accuracy as a whole compared to the value of “rate” before rate adjustment described above. It can be seen that it is.
  • the rate of the mechanical timepiece can be adjusted with high accuracy. Therefore, a highly accurate mechanical timepiece can be manufactured by using the method of the present invention.
  • the method for manufacturing a mechanical timepiece of the present invention is suitable for accurately adjusting the rate of a mechanical timepiece by a simple process without disassembling the movement.
  • the method for producing a mechanical timepiece of the present invention is suitable for producing a high-precision mechanical timepiece.

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

Abstract

La présente invention concerne un procédé de fabrication d'une montre mécanique consistant à: mesurer d'abord la fréquence de temps du mouvement après assemblage initial (400) disposé dans une pluralité de « positions verticales », calculer ensuite l'ampleur de réglage global du balancier annulaire réglé (140) sur la base des résultats de mesure de la fréquence de temps, puis, calculer, sur la base des résultats calculés de l'ampleur de réglage global du balancier annulaire réglé (140), les longueurs de vibration du spiral (140c) devant être ajustées, et enfin, sur la base des résultats calculés des longueurs de vibration du spiral (140c) devant être ajustées, faire vibrer un élément piézo-électrique (454) de commande de spiral mis en contact avec le spiral (140c), de manière à ajuster une longueur effective sur laquelle le spiral (140c) vibre.
PCT/JP2000/000283 1999-12-24 2000-01-21 Procede de fabrication d'une montre mecanique WO2001053896A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
CN00805391A CN1344386A (zh) 2000-01-21 2000-01-21 机械表制造方法
EP00900862A EP1172716A1 (fr) 2000-01-21 2000-01-21 Procede de fabrication d'une montre mecanique
PCT/JP2000/000283 WO2001053896A1 (fr) 2000-01-21 2000-01-21 Procede de fabrication d'une montre mecanique
EP00902140A EP1158373A4 (fr) 1999-12-24 2000-02-08 Horloge mecanique comportant un mecanisme d'actionnement de regulateur
PCT/JP2000/000677 WO2001048566A1 (fr) 1999-12-24 2000-02-08 Horloge mecanique comportant un mecanisme d'actionnement de regulateur
CN00806505A CN1347520A (zh) 1999-12-24 2000-02-08 具有快慢针操作机构的机械时计
HK02107000.1A HK1045570A1 (zh) 2000-01-21 2002-09-25 機械錶製造方法
HK02107307.1A HK1046039A1 (zh) 1999-12-24 2002-10-04 具有快慢針操作機構的機械時計

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/000283 WO2001053896A1 (fr) 2000-01-21 2000-01-21 Procede de fabrication d'une montre mecanique

Publications (1)

Publication Number Publication Date
WO2001053896A1 true WO2001053896A1 (fr) 2001-07-26

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PCT/JP2000/000283 WO2001053896A1 (fr) 1999-12-24 2000-01-21 Procede de fabrication d'une montre mecanique

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EP (1) EP1172716A1 (fr)
CN (1) CN1344386A (fr)
HK (1) HK1045570A1 (fr)
WO (1) WO2001053896A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010055943A1 (fr) 2008-11-17 2010-05-20 財団法人電気磁気材料研究所 Alliage à module constant à dureté élevée insensible au magnétisme, son procédé de fabrication, spiral, dispositif d'entraînement mécanique et montre

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1437634A1 (fr) * 2002-12-19 2004-07-14 Glashütter Uhrenbetrieb GmbH Dispositif de réglage fin pour balancier-spiral
EP2653938A1 (fr) * 2012-04-19 2013-10-23 ETA SA Manufacture Horlogère Suisse Balancier d'horlogerie
EP2799937B1 (fr) * 2013-05-01 2020-09-16 Rolex Sa Corps d'amortisseur d'un balancier d'un oscillateur d'horlogerie

Citations (6)

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Publication number Priority date Publication date Assignee Title
JPS4855773A (fr) * 1971-11-10 1973-08-04
JPS50155266A (fr) * 1974-06-05 1975-12-15
JPS519875A (ja) * 1974-07-15 1976-01-26 Suwa Seikosha Kk Tokeihodosokuteihoho
JPS5181160A (ja) * 1975-01-11 1976-07-15 Akuto Giken Kk Dejitarushikitenpujidochoseihoho
JPS52131765A (en) * 1976-04-28 1977-11-04 Orient Watch Co Ltd Spiral spring support for clock
JPS62165585U (fr) * 1986-04-02 1987-10-21

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4855773A (fr) * 1971-11-10 1973-08-04
JPS50155266A (fr) * 1974-06-05 1975-12-15
JPS519875A (ja) * 1974-07-15 1976-01-26 Suwa Seikosha Kk Tokeihodosokuteihoho
JPS5181160A (ja) * 1975-01-11 1976-07-15 Akuto Giken Kk Dejitarushikitenpujidochoseihoho
JPS52131765A (en) * 1976-04-28 1977-11-04 Orient Watch Co Ltd Spiral spring support for clock
JPS62165585U (fr) * 1986-04-02 1987-10-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010055943A1 (fr) 2008-11-17 2010-05-20 財団法人電気磁気材料研究所 Alliage à module constant à dureté élevée insensible au magnétisme, son procédé de fabrication, spiral, dispositif d'entraînement mécanique et montre
US8684594B2 (en) 2008-11-17 2014-04-01 The Foundation: The Research Institute For Electric And Magnetic Materials Magnetically insensitive, highly hard and constant-modulus alloy, and its production method, as well as hair spring, mechanical driving apparatus and watch and clock

Also Published As

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HK1045570A1 (zh) 2002-11-29
EP1172716A1 (fr) 2002-01-16
CN1344386A (zh) 2002-04-10

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