WO2001065321A1 - Posture detection part and mechanical timepiece having electrostatic capacity type detection part - Google Patents

Abstract

A mechanical timepiece, comprising a posture detection part (361) for controlling the posture of the mechanical timepiece, a timed annular balance rotation detection part (276) which is installed to detect a swing angle of the timed annular balance by detecting a variation in static electricity capacity between a timed annular balance static electricity capacity electrode part (240) and a static electricity capacity electrode for detection (250) which varies according to the operating condition of the timed annular balance (140), and a braking part (146) which, when the swing angle of the timed annular balance (140) detected by the timed annular balance rotation detection part (276) is equal to or more than a preset set angle, is formed so that a force to suppress the rotation of the timed annular balance (140) is given to the timed annular balance (140) based on the signals relating to the posture of the mechanical timepiece detected by the position detection part (361).

Description

 Description Mechanical watch equipped with attitude detector and capacitance detector

〔Technical field〕

 According to the present invention, a force that suppresses the rotation of the balance with hairspring is applied to the balance with the balance based on the detection result of the posture of the mechanical watch and the detection result of the swing angle of the balance with the mechanical watch. The present invention relates to a mechanical timepiece having a posture detecting unit and a capacitance detecting unit for detecting rotation of a balance with hair.

(Background technology)

 In a conventional mechanical timepiece, as shown in FIGS. 13 and 14, 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. 14) is attached to the movement 110.

 In general, of the two sides of the main plate, the side with the dial is called the “back side” of the movement, and 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”, and 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. The wheel 1 1 1 2 is rotatably provided on the guide shaft of the winding stem 1 1 1 °. The winding 1 1 1 0 If the winding stem 1 1 1 0 is rotated in the first winding stem position (the 0th stage) closest to the inside of the movement along the direction of the rotation axis, the rotation of the pinwheel causes The car 1 1 1 2 rotates. The round hole wheel 1 1 1 4 is rotated by the rotation of the wheel 1 1 1 2. The square wheel 1 1 1 6 is rotated by the rotation of the round hole wheel 1 1 1 4. When the square wheel 1 1 16 rotates, the mainspring 1 1 2 2 housed in the barrel box 1 1 2 0 is wound up. 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. Based on the rotation of the second wheel & pinion 1 1 2 4, 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. Based on the rotation of the canal pinion 115, 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 1 140 c is a thin leaf spring having a spiral shape with a plurality of turns. The inner end of the hairspring 1 1 4 0 c is in the balance 1 1 4 0 a The outer end of the hairspring 1 140 c is fixed to the fixed beard ball 1 140 d, and the outer end of the hairspring 1 140 c is attached to the beard holder 1 170 fixed to the balance holder 1 1 6 6 via the beard holder 1 170 a. It is fixed by screw tightening.

 A speed / recess needle 1 16 8 is rotatably mounted on the balance with hairspring 1 1 6 6. The beard holder 1 1 68a and the beard bar 1 1 6 8b are attached to the needle 1 1 68. The portion near the outer end of the hairspring 1 1140c is located between the beard holder 1 1 68a and the beard bar 1 1 68b.

 Generally, in a typical conventional mechanical watch, as shown in Fig. 15, as the mainspring is unwound from a state in which the mainspring is completely wound up (full winding state) and the duration of the mainspring has passed, the mainspring has a longer duration. The torque decreases. For example, in the case of Fig. 15, the mainspring torque is about 27 gcm in the fully wound state, becomes about 23 g * cm after 20 hours from the fully wound state, and 40 hours after the fully wound state. About 18 g · cm.

 In general, as shown in Fig. 16, in a typical conventional mechanical watch, as the spring torque decreases, the swing angle of the balance with hairspring also decreases. For example, in the case of Fig. 16, when the mainspring torque is 25 to 28 g * cm, 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 is about 180-240 degrees.

 Referring to FIG. 17, there is shown the transition of the instantaneous rate (a numerical value indicating the precision of the watch) with respect to the swing angle of the balance with hairspring in a typical conventional mechanical watch. Here, the "instantaneous rate" is defined as "when the mechanical watch is left for one day while maintaining the state and environment, such as the swing angle of the balance when measuring the rate, A value indicating the advance or delay of a mechanical watch ”. In the case of Fig. 17, when the swing angle of the balance with hairspring is greater than 240 degrees or less than 200 degrees, the instantaneous rate is delayed.

For example, in a typical conventional mechanical watch, the swing of the balance When the angle is about 200 to 240 degrees, the instantaneous rate is about 0 to 5 seconds, which means (about 1 to 5 seconds for 1; advance), but the swing angle of the balance is about 1 At 70 degrees, the instantaneous rate is about 20 seconds / day (about 20 seconds behind each day).

 FIG. 18 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. Here, in conventional mechanical watches, the “rate”, which indicates the advance or delay of the watch per day, is the elapsed time that the mainspring is unwound from the entire winding, as shown by the extra-fine line in Figure 18. It is obtained by integrating the instantaneous rate with respect to over 24 hours.

 In general, in a conventional mechanical timepiece, as the mainspring is unwound from the fully wound state and the duration time elapses, the mainspring torque decreases and the swing angle of the balance with hairspring decreases, so that the instantaneous rate is delayed. For this reason, in the case of a conventional mechanical watch, 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.

 For example, in a typical conventional mechanical watch, the instantaneous rate is about 3 seconds / day (about 3 seconds per day) when fully wound, as shown by the extra-fine line in Fig. 18. Twenty hours after the winding state, the instantaneous rate is about 3 seconds / day (about 3 seconds behind each day), and 24 hours after the full winding state, the instantaneous rate is about 8 seconds / day ( After about 30 hours from the fully wound state, the instantaneous rate is about -16 seconds / day (about 16 seconds late per day). In a mechanical watch, assuming that the dial is attached, there are two types: a “flat position” where the dial is horizontal, and a “standing position” where the dial is vertical. Is defined.

In mechanical watches, when assuming that the dial is attached, The direction from the center of the mechanical clock to the 12 o'clock scale on the dial is called `` 12 o'clock direction '', the direction from the center of the mechanical clock to the 3 o'clock scale on the dial is called `` 3 o'clock direction, The direction from the center of the mechanical watch to the dial at 6 o'clock is called “6 o'clock”, and the direction from the center of the mechanical watch to the dial at 9 o'clock is called “9 o'clock” (Fig. See 13).

 Also, in mechanical watches, when the dial is attached and the dial is assumed to be vertical, the attitude of the dial at 12 o'clock is up, and the attitude of “12 o'clock above” The position where the dial at 3 o'clock is up is called "3 o'clock position", and the position at which the dial at 6 o'clock is up is called "6 o'clock position". The position in which the 9 o'clock scale on the dial is up is called "9 o'clock position".

 And in the mechanical watch, the four different standing postures of "1 2 o'clock position", "3 o'clock position", "6 o'clock position" and "9 o'clock position" It is known that the measured values are different. Therefore, in a mechanical watch, the “rate” is measured for these four standing positions, and the rate of the mechanical watch is adjusted so that the measured value of the “rate” satisfies a predetermined standard. Manufactured mechanical watches.

In the following description, the “rate when the mechanical watch is in the 12 o'clock position” is referred to as “1 2 upper rate”, and 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 '', and the rate when the mechanical watch is in the 6 o'clock position is referred to as `` 6 upper rate '', and the rate when the mechanical watch is in the 9 o'clock position is C Referring to Fig. 19, in the mechanical watch, when the balance angle of the balance with hairspring is 150 degrees, the average value of the rates in four standing postures (3 The average of the rate, 6 ascending rate, 9 ascending rate, and 12 ascending rate) is about 31 seconds / day. In addition, when the swing angle of the balance with hairspring is 250 degrees, the average value of the rates in the four standing positions is about -4 seconds / day. In a mechanical timepiece, when the swing angle of the balance with hairspring is 180 degrees, the average value of the rates in the four standing positions is about 20 to 25 seconds / day. On the other hand, referring to FIG. 17, in the mechanical timepiece, when the swing angle of the balance with hairspring is 180 degrees, the rate in the flat posture is about 10 seconds / day. In other words, in the mechanical timepiece, when the swing angle of the balance with hairspring is 180 degrees, the rate in the upright position is about 10 to 15 seconds / day ahead of the rate in the flat position.

 Conventionally, in order to adjust the rate of such a mechanical watch, 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. This was done by scraping off a part of it and assembling the movement (mechanical body) 1101 again. For this reason, the movement (mechanical body) of the mechanical watch that has been assembled is measured at a rate of 110, and a part of the balance wheel is scraped off. Body) The rate was measured at 1100.

 Therefore, measuring and adjusting the rate required a lot of time and effort, and it was difficult to realize a highly accurate mechanical timepiece. A conventional balance angle adjusting device for a balance with hairspring is provided with a swing angle adjusting plate that applies a braking force to the balance with an overcurrent generated each time the magnet of the balance approaches and swings. It is disclosed in Japanese Patent Application Publication No. 544-141675.

 Further, a specific structure of a conventional automatic winding mechanism of a self-winding timepiece is disclosed, for example, in Japanese Patent Application Laid-Open No. 11-183649. An object of the present invention is to provide a mechanical timepiece that has a small change in the rate even after the lapse of time from the fully wound state and has good accuracy.

[Disclosure of the Invention]

The present invention provides a mainspring constituting a power source of a mechanical timepiece, and a mainspring being unwound. The gearbox has a front train wheel that is rotated by the rotational force when the vehicle rotates, and an escapement and speed control device for controlling the rotation of the front wheel train. The escapement and speed control device alternately rotates clockwise and counterclockwise. A mechanical timepiece configured to include an escape wheel that rotates based on the rotation of the front train wheel and an pallet that controls rotation of the wheel based on the operation of the balance with a balance. Balance rotation detector that detects the swing angle of the balance with hairspring by detecting the capacitance that changes according to the operating state of the balance, and a posture detector that detects the posture of the mechanical watch When the swing angle of the balance with hairspring detected by the balance rotation detection unit is equal to or greater than the preset angle, the balance rotation of the balance with hairspring is suppressed based on the mechanical clock signal detected by the posture detection unit. Like applying force to the balance And a configured braking unit.

 In the mechanical timepiece of the present invention, in order to measure the rotation operation of the balance with hairspring, the balance electrode of the balance with hairspread is arranged on the balance with hairspring, and the detection unit is arranged with a certain gap from the balance with the balance of balance with hairspring. In addition, it is preferable to include a capacitance electrode for detection arranged on the base plate via an insulating portion.

 Further, in the mechanical timepiece of the invention, the balance with hairspring capacitance electrode is fixed to the side surface of the outer periphery of the balance wheel via a balance with hairspring insulator for insulating the balance with the balance with hairspring electrostatic capacitance. Is preferred.

 In the mechanical timepiece of the present invention, the balance with hairspring capacitance electrode may be configured to be fixed to the side surface of the outer periphery of the balance with hairspring.

 Further, in the mechanical timepiece of the present invention, the balance with hairspring capacitance electrode is disposed on the lower surface of the balance arm with a balance-insulating portion for insulating the balance with the balance with hairspring electrostatic capacitance. You may comprise so that it may be.

 Further, in the mechanical timepiece of the present invention, the balance with hairspring capacitance electrode portion may be arranged on the lower surface of the balance with hairspring on the base plate side.

Further, in the mechanical timepiece of the present invention, the braking section brakes the movement of the balance magnet. It is preferred to include a coil arranged so that

 By using the detection unit and the braking unit configured as described above, the rotation angle of the balance of the mechanical watch can be effectively controlled, thereby improving the accuracy of the mechanical watch. it can.

 Further, the mechanical timepiece of the present invention includes a balance rotation detection circuit configured to control a voltage applied to the balance with hairspread electrode, and a balance between the balance with hairspring electrode and the capacitance electrode for detection. A capacitance detection circuit provided to measure the change in capacitance between the balance and the balance between the balance electrode and the detection capacitance electrode output by the balance detection circuit Is configured to calculate the swing angle of the balance with hairspring based on the measurement result of the change in capacitance between the balance electrode and the detection capacitance electrode. A balance rotation control circuit, wherein when the swing angle of the balance with hairspring is smaller than a certain threshold value, the coil is not turned on, and the swing angle of the balance with hairspring is set at the certain fixed angle. If above threshold, call Preferably, it is configured to conduct.

 Further, it is preferable that the mechanical timepiece of the present invention is configured to further include a balance rotation detection circuit, a capacitance detection circuit, and a power storage unit for operating the balance rotation control circuit.

 Further, the mechanical timepiece of the present invention preferably further includes a power generation unit for charging the power storage unit.

 Further, in the mechanical timepiece of the present invention, the attitude detecting unit is configured to contact the rotating weight, the attitude detecting member provided on the rotating weight, and the attitude detecting member when the mechanical timepiece is in the vertical attitude, and the detection signal It is preferable to include a posture detecting electrode for outputting the balance to a balance rotation control circuit.

Further, in the mechanical timepiece of the present invention, the attitude detecting unit is configured to contact the rotating weight, the attitude detecting member provided on the rotating weight, and the attitude detecting member when the mechanical timepiece is in the upright attitude. A posture detection electrode for outputting a detection signal to the balance rotation control circuit; a return spring provided to prevent the posture detection member from contacting the posture detection electrode when the mechanical watch is in a flat posture; It is preferable to include a spherical pressing member provided for bringing the posture detecting member into contact with the posture detecting electrode when the timepiece is in the standing posture. With this configuration, it is possible to provide a highly accurate mechanical timepiece with a small change in the rate even when the elapsed time has elapsed from the full winding state.

[Brief description of drawings]

 FIG. 1 is a plan view showing a schematic shape of a front side of a movement when an automatic winding part is removed in an embodiment of a mechanical timepiece of the present invention. Omitted, and the receiving member is shown by a virtual line).

 Figure 2 shows the mechanical watch of the present invention.

FIG. 4 is an enlarged partial cross-sectional view showing a schematic shape of a portion of a train wheel, an escapement / speed governor in the embodiment.

 FIG. 3 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. 4 is an enlarged partial plan view showing a schematic configuration of the speed control unit and the detection unit in a state where the balance with hairspring is not rotating in the embodiment of the mechanical timepiece of the present invention.

 FIG. 5 is an enlarged partial cross-sectional view showing a schematic shape of a speed governor and a detector in the embodiment of the mechanical timepiece of the present invention.

 FIG. 6 is an enlarged partial plan view showing a schematic shape of the speed governor and the detector in a state where the balance with hairspring is rotated 90 degrees in the embodiment of the mechanical timepiece of the present invention.

FIG. 7 is an enlarged partial plan view showing a schematic configuration of the speed governing unit and the detecting unit in a state where the balance with hairspring is not rotating, in another embodiment of the mechanical timepiece of the present invention. FIG. 8 is an enlarged partial cross-sectional view showing a schematic configuration of a speed control unit and a detection unit in another embodiment of the mechanical timepiece of the present invention.

 FIG. 9 is an enlarged partial plan view showing the schematic shapes of the speed governor and the detector in a state where the balance with hairspring is rotated 90 degrees in another embodiment of the mechanical timepiece of the present invention.

 FIG. 10 is a perspective view showing a schematic shape of a balance magnet used in the embodiment of the mechanical timepiece of the present invention.

 FIG. 11 is a block diagram showing a schematic configuration of a mechanical timepiece according to the present invention.

 FIG. 12 is a flowchart showing the operation of the mechanical timepiece of the present invention.

 Fig. 13 is a plan view showing the schematic shape of the front side of the element of the conventional mechanical watch (in Fig. 13 some parts are omitted and the receiving members are shown by phantom lines). . Fig. 14 is a schematic partial cross-sectional view of a movement of a conventional mechanical timepiece (in Fig. 14 some parts are omitted).

 Fig. 15 is a graph schematically showing the relationship between the elapsed time from full winding and the mainspring torque in a mechanical timepiece.

 FIG. 16 is a graph schematically showing a relationship between a swing angle of a balance with hairspring and a mainspring torque in a mechanical timepiece.

 FIG. 17 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. 18 is a graph schematically showing the relationship between the elapsed time and the instantaneous rate from the entire turn to the mechanical timepiece of the present invention and the conventional mechanical timepiece.

 FIG. 19 is a graph schematically showing the relationship between the swing angle of the balance with hairspring and the average value of the rate in four standing postures when the mechanical timepiece is placed in the standing posture.

 FIG. 20 is an enlarged partial cross-sectional view showing a schematic shape of an automatic winding section in the embodiment of the mechanical timepiece of the present invention.

FIG. 21 is a schematic diagram of the rotating weight and the attitude detecting unit in the embodiment of the mechanical timepiece of the present invention. It is a top view which shows a schematic shape.

 FIG. 22 is an enlarged partial plan view showing the schematic shapes of the rotating weight and the attitude detection switch in the embodiment of the mechanical timepiece of the present invention.

 FIG. 23 is an enlarged partial cross-sectional view showing a schematic configuration of a rotating weight and a posture detection switch in the embodiment of the mechanical timepiece of the present invention.

 FIG. 24 is an enlarged partial cross-sectional view showing a schematic shape of a posture detection switch in the embodiment of the mechanical timepiece of the present invention.

 FIG. 25 is a plan view showing a schematic configuration of a rotating weight and a posture detecting unit in another embodiment of the mechanical timepiece of the present invention.

 FIG. 26 is an enlarged partial plan view showing the schematic shapes of the rotating weight and the attitude detection switch in another embodiment of the mechanical timepiece of the present invention.

 FIG. 27 is an enlarged partial cross-sectional view showing a schematic configuration of a rotating weight and a posture detection switch in another embodiment of the mechanical timepiece of the present invention.

 FIG. 28 is an enlarged partial cross-sectional view showing a schematic shape of a posture detection switch in another embodiment of the mechanical timepiece of the present invention.

[Best mode for carrying out the invention]

 An embodiment of a mechanical timepiece according to the present invention will be described below with reference to the drawings.

 (1) Configuration of switching device and winding section

Referring to FIGS. 1 to 3, in the mechanical watch according to the embodiment of the present invention, the movement (mechanical body) 400 of the mechanical watch has a main plate 102 constituting a substrate of the movement. The winding stem 110 is rotatably incorporated in the winding guide hole 102 a of the main plate 102. The c-winder 110 on which the dial 104 (see FIG. 2) is attached to the movement 400 has a corner and a guide shaft. Continuity wheel (not shown) is winding 1 1 0 To be incorporated into the corners. The thumbwheel has the same rotation axis as the rotation axis of the winding stem 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 element.

 The movement 400 is provided with a switching device for determining the position of the winding stem 110 in the axial direction. The switching device includes a setting lever 190, a latch 1992, a latch spring 1994, and a back retainer 1996. The position of the winding stem 110 in the rotation axis direction is determined based on the rotation of the setting. Determine the position of the thumbwheel in the direction of the rotation axis based on the rotation of the bolt. Based on the rotation of the setting, the bar is positioned in two rotational directions.

 The wheel 1 1 2 is rotatably provided on the guide shaft of the winding stem 110. When the winding stem 110 is rotated in the state where the winding stem 110 is located at the first winding stem position (the 0th stage) closest to the inside of the movement along the rotation axis direction, The wheel 1 1 2 is configured to rotate through the rotation of the vehicle. The round wheel 1 1 4 is configured to rotate by the rotation of the wheel 1 1 2. The square hole wheel 116 is configured to rotate by the rotation of the round hole wheel 114.

(2) Power source and wheel train configuration

 The movement 400 is powered by a mainspring 122 housed in a barrel box 120. The mainspring 1 2 2 is made of an elastic material having a spring property such as iron. The configuration is such that the mainspring 1 2 2 can be wound up by rotating the square wheel 1 1 6.

The second wheel & pinion 124 is configured to rotate by the rotation of the barrel wheel 120. Third The car 1 2 6 is configured to rotate based on the rotation of the second wheel 1 2 4. 4th car

1 2 8 is configured to rotate based on the rotation of the third wheel 1 2 6. Escape wheel

130 is configured to rotate based on the rotation of the fourth wheel & pinion 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.

(3) Escape

 The movement 400 is provided with an escape / governing device for controlling the rotation of the front train wheel. The escapement and governor operate the balance wheel 140, which rotates clockwise and counterclockwise at regular intervals, the escape wheel 1330, which rotates based on the rotation of the front train wheel, and the balance wheel 140, And an ankle 142 for controlling 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 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.

 Based on the rotation of the second wheel & pinion 1, 24, the cylindrical pinion 150 rotates simultaneously. The minute hand 15 2 attached to the barrel pinion 150 is configured to display “minute”. The cannon pinion 150 is provided with a slip mechanism having a predetermined slip torque with respect to the center wheel & pinion 124.

 The minute wheel (not shown) rotates based on the rotation of the cannon pinion 150. The hour wheel 154 rotates based on the rotation of the minute wheel. The hour hand 156 attached to the hour wheel 154 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, the escape wheel 1 3 0 It is supported so as to be rotatable with respect to 102 and the train wheel bridge 16 2. The ankle 14 2 is supported so as to be rotatable with respect to the ± plate 102 and the ankle receiver 16 4. The balance with hairspring 140 is rotatably supported with respect to the main plate 102 and the balance with hairspring 166. In other words, 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.

 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 140 c is a thin leaf spring having a spiral shape with a plurality of turns. The inner end of the hairspring 140 c is fixed to a beard ball 140 d fixed to a balance 140 a, and the outer end of the hairspring 140 c is a balance 16 1 It is fixed with a screw via a beard holder 170 a attached to a beard holder 170 rotatably fixed to the shaft. The balance 166 is made of a metal conductive material such as brass. C The beard holder 170 is made of a metal conductive material such as iron.

(4) Configuration of automatic winding section

 Next, the configuration of the automatic winding section of the mechanical timepiece of the present invention will be described.

 Referring to FIG. 20, the movement 300 includes an automatic winding.

 Square hole wheel 1 16 is incorporated into the back cover side of barrel holder 160. The square hole 1 16a of the square wheel 1 16 is incorporated into the corner 1 2 Ob of the barrel 1 12 0a of the barrel car 1 20. Square screw 3 9 2 secures square hole wheel 1 16 to barrel box 120 a.

The oscillating weight 360 is the ball bearing section 362, the oscillating weight body 364, and the oscillating weight 3 6 Including 6. The ball bearing section 36 2 includes an inner ring 36 8, a holding ring 37 0, and an outer ring 37 2, and a plurality of balls 37 4 are formed by the inner ring 36 8 and the holding ring 37 0 Built between 7 and 2. A rotating weight pinion 376 is provided on the outer periphery of the outer ring 37.2.

 The first transmission wheel 380 is rotatably incorporated in the barrel holder 160 and the main plate 102. The first transmission wheel 380 has a first transmission gear 380a, an upper guide shaft 380b, and a lower guide shaft 380c. The first transmission gear 380a is configured to mate with the rotary weight pinion 376. An eccentric shaft portion 380 d is provided between the first transmission gear 380 a and the upper guide shaft portion 380 Ob on the first transmission wheel 380. The upper guide shaft 38Ob is rotatably supported with respect to the barrel holder 160. The lower guide shaft portion 380c is rotatably supported on the main plate 102.

 The pawl lever 382 is incorporated between the first transmission gear 380a and the barrel holder 160. Therefore, the pawl lever 3882 is arranged on the back cover side of the barrel holder 160. The pawl lever 382 has a press pawl (not shown) and a pull pawl 382c. The guide hole 382a of the pawl lever 382 is rotatably incorporated into the eccentric shaft 380d. The transmission retainer 383 is mounted at a position closer to the lower guide shaft portion 380c than the eccentric shaft portion 380d of the first transmission wheel 380.

The second transmission wheel 384 is mounted on the back side of the barrel holder 160, and is rotatably mounted by the second transmission screw 385. The second transmission wheel 38.4 has a second transmission gear 38.4a and a second transmission pinion 38.4b. The second transmission gear 3 8 4a is configured in the form of a ratchet gear. The push pawl and the pull pawl 3882c of the pawl lever 3882 engage with the ratchet gear 3884a. When the second rotating pinion 3 8 4 b is engaged with the square hole wheel 1 16 and the _c- rotating weight 360 is rotated, the first rotating wheel 3 800 is rotated by the rotation of the rotating weight pin 3 76. The pawl lever 382 reciprocates based on the eccentric motion of the eccentric shaft section 380d by the rotation of the first transmission wheel 380. Turn the second wheel 3 8 4 in a certain direction. The rotation of the second transmission wheel 3 8 4 rotates the square hole wheel 1 16, and winds up the mainspring 120 c in the barrel box 120.

(5) Configuration of balance rotation detector

 Next, the configuration of the balance rotation detecting unit of the mechanical timepiece of the present invention will be described. (5.1) Configuration of balance rotation detection unit in embodiment of mechanical timepiece of the present invention First, the configuration of balance rotation detection unit in the embodiment of the mechanical timepiece of the invention will be described.

 Referring to FIG. 1 to FIG. 5, a balance capacitance electrode section 240 is arranged on the balance with hairspring 140 to measure the rotation operation of the balance with hairspring 140. The balance electrode portion 240 is fixed to the side surface of the outer periphery of the balance wheel 14 Ob via the balance insulating portion 242. The balance insulated portion 242 is provided to insulate the balance electrode portion 240 and the balance ring 14 Ob. The balance electrode portion 240 is made of, for example, a conductive material such as copper. The balance insulating portion 242 is formed of, for example, a plastic material such as polycarbonate. The balance electrode 24 Ob is electrically connected to the balance 14 Ob by soldering or the like.

 In this case, it is preferable to form the balance electrode 24 Ob and conduct the conduction with the balance wheel 14 Ob by soldering, and then adjust the balance in advance so that there is no counterweight of the balance 140. .

 As a modification, the balance electrode portion 24 Ob may be fixed to the side surface of the outer periphery of the balance wheel 14 Ob without providing the balance with hair balance portion 24 2 b.

The angle at which the balance electrode portion 240 is provided is preferably, for example, 150 to 210 degrees with respect to the center of rotation of the balance 140. The angle at which the balance electrode portion 240 is provided is preferably about 180 degrees with respect to the rotation center of the balance 140. In order to measure the rotation operation of the balance with hairspring 140, a capacitance electrode for detection 250 is provided on the main plate 102. The detection capacitance electrode 250 is fixed to the base plate 102 via the ground plane insulating portion 255. That is, the detection capacitance electrode 250 constitutes a detection unit. The ground plane insulating portion 255 is provided to insulate the detection capacitance electrode 250 from the ground plane 102. The detection capacitance electrode 250 is formed of, for example, a conductive material such as copper. The base plate insulating portion 252 is formed of, for example, a plastic material such as polycarbonate.

 In this configuration, governing section 144 includes balance 140, balance magnet 140e, balance electrostatic electrode section 240, and balance insulating section 242. Details of the balance magnet 140 e will be described later.

 The balance electrode portion 240 is configured to rotate with a certain gap with respect to the detection capacitance electrode 250. The constant gap is, for example, 0.2 to 0.3 millimeter.

 Referring to FIG. 4, when the balance with hairspring is not rotating, the entire surface area of the balance electrode portion 240 is configured to face the detection capacitance electrode 250. . On the other hand, referring to FIG. 6, when the balance with hairspring is rotated 90 degrees, about one half of the surface area of the balance electrode 240 of the balance with hairspread is detected by the detection capacitance. It is configured to face the electrode 250.

In a state as shown in FIG. 4, that is, in a state in which the entire surface area of the balance electrode portion 240 is facing the detection capacitance electrode 250, the balance portion portion of the balance electrode portion is detected. The capacitance between 240 and the detection capacitance electrode 250 is approximately 0.6 picofarads. In the state as shown in FIG. 6, that is, in a state in which about a half of the surface area of the balance electrostatic electrode section 240 faces the detecting capacitive electrode 250, The capacitance between the balance electrode portion 240 and the detection capacitance electrode 250 is about 0.3 picofarad. The detection capacitance electrode 250 is connected to the IC 404. The connecting lead wire 282 is used for detecting the IC 404 in order to detect the change in the capacitance between the balance capacitive electrode section 240 and the detecting capacitive electrode 250. The terminal is connected to the capacitance electrode 250 for detection.

 The IC 404 includes a balance rotation detection circuit 272, a capacitance detection circuit 273, and a balance rotation control circuit 406. The balance rotation detection circuit 272 is configured to control the voltage applied to the detection capacitance electrode 250. The capacitance detection circuit 273 is provided for measuring a change in capacitance between the balance electrode portion 240 and the detection capacitance electrode 250. The balance rotation control circuit 406 inputs a signal relating to a change in capacitance output from the capacitance detection circuit 273, and the balance balance electrode section 240 and the detection capacitance electrode 2 are inputted. It is configured to calculate the swing angle of the balance with hairspring 140 based on the measurement result of the change in the capacitance between 50 and 50.

(5-2) Detection of swing angle of balance

 The balance rotation control circuit 400 is previously provided with an initial value of the capacitance between the balance electrode portion 240 and the detection capacitance electrode 250 and the balance balance electrode portion 240. The relationship between the value after the change in the capacitance between the balance and the detection capacitance electrode 250 and the swing angle of the balance 140 is stored. Therefore, calculation of the swing angle of the balance with hairspring 140 should be performed using the value of the capacitance between the balance with the balance electrode electrode 240 and the capacitance for detection electrode 250 after change. Can be.

In other words, the value of the capacitance (referred to as the balance capacitor) between the balance electrode portion 240 and the detection capacitance electrode 250 is C 1, and is stored in the balance rotation control circuit 406. When the value of the built-in reference capacitance (referred to as built-in capacitor) is C 2 and the balance capacitor and built-in capacitor are connected in series, the balance capacitor and built-in capacitor are connected at both ends of the series connection. The applied voltage is V Let the terminal voltage of the balance capacitor when this voltage V is applied be V1, and let the terminal voltage of the built-in capacitor be V2.

 The portion where the balance capacitor and the built-in capacitor are connected in series constitutes a capacitance unit for determining the value of the capacitance of the balance balance and detecting the swing angle of the balance with hairspring 140.

 The charge Q stored in the balance capacitor and built-in capacitor is

 Q = C 1 * V 1 = C 2 * V2

The voltage V applied to both ends of the capacitance part (the series connection part of the balance and the built-in capacitor) is

 V = V 1 + V2

It is.

 For example, C 1 = 0.28 [p F] s C 2 = l. 00 [pF], V = l. 5 [V] (based on the potential of the balance electrode 240, minus 1.5 vol. G)

 In a state where approximately one half of the surface area of the balance electrode 240 is facing the detection capacitance electrode 250 (when the swing angle of the balance 140 is 180 degrees), V2 = 328 [mV].

 This 328 [mV] can be set as the reference voltage threshold Vth [mV] corresponding to the swing angle of the balance with hairspring 180 of 180 degrees.

 Then, when the capacitance of the balance capacitor becomes larger than 0.28 [pF], V2 becomes larger than Vth, and when the capacitance of the balance capacitor becomes smaller than 0.28 [pF], V2 becomes smaller than Vth. .

 By using a constant voltage circuit built in the balance rotation control circuit 406, V1.5 [V] can be accurately controlled.

Similarly, calculate the voltage V2 when the swing angle of the balance with hairspring 140 is another angle, and Alternatively, if this relationship is determined by experiment, the value of the voltage V2 corresponding to the change in the capacitance between the balance electrode portion 240 and the detection capacitance electrode 250 is calculated. By doing so, the swing angle of the balance 140 can be accurately obtained.

 In the mechanical timepiece of the present invention, the balance rotation control circuit 406 preliminarily stores the value of the capacitance between the balance hair capacitive electrode section 240 and the detection capacitive electrode 250 and the voltage The relationship between the value of V 2 is stored.

(5.3) Configuration of balance rotation detection unit of another embodiment of the mechanical timepiece of the present invention Next, the configuration of the balance rotation detection unit of another embodiment of the mechanical timepiece of the invention will be described.

 Referring to FIG. 7 and FIG. 8, in order to measure the rotation operation of the balance with hairspring 140, the balance electrode portion 240b of the balance with hairspring is arranged on the balance with hairspring 140. The balance-capacitance electrode part 24 Ob is provided on a part of the lower surface of the balance arm part 140f on the ground plate 102 side via the balance-hair insulation part 242b. The balance with hair balance portion 242b is provided to insulate the balance with hair balance electrode portion 24Ob and the balance with hair balance arm 140f. The balance electrode portion 240 Ob is electrically connected to the balance arm portion 140 f by soldering or the like. As a modified example, the balance with a balance electrode electrode 240b may be arranged on the balance with hairspring 140 without providing the balance with hairspring insulating portion 242b.

 The angle at which the balance electrode portion 240b is provided is preferably, for example, 150 to 210 degrees based on the center of rotation of the balance 140. The angle at which the balance electrode portion 24 Ob is provided is preferably about 180 degrees with respect to the rotation center of the balance 140.

In order to measure the rotation operation of the balance with hairspring 140, a detection capacitance electrode 250b is provided on the ground plane 102. The detection capacitance electrode 25 Ob is fixed to the ground plane 102 via the ground plane insulating portion 252b. That is, the detection capacitance electrode 25 Ob is detected. Construct the outlet. The plus and minus plate insulating portions 25 2 b are provided to insulate the detection capacitance electrode 250 b from the ground plate 102.

 In a state as shown in FIG. 7, that is, in a state where the entire surface area of the balance electrode portion 24 Ob faces the detection capacitance electrode 25 Ob, The capacitance between the part 240 b and the detection capacitance electrode 250 b is about 0.6 bicofarad. In the state shown in FIG. 9, that is, about 1/2 of the surface area of the balance electrostatic electrode portion 24 Ob faces the detection electrostatic electrode 25 Ob. In this state, the capacitance between the balance electrode portion 24 Ob and the detection capacitance electrode 250 b is about 0.3 bicofarad.

 Then, the balance electrode portion 240b is configured to rotate with a certain gap with respect to the detection capacitance electrode 250b. The constant gap is, for example, 0.2 to 0.3 millimeter.

 Referring to FIG. 7, when the balance with hairspring is not rotated, the entire surface area of the balance electrode portion 240 b is configured to face the detection capacitance electrode 250 b. Is done. On the other hand, referring to FIG. 9, when the balance with hairspring is rotated 90 degrees, about one half of the surface area of the balance electrode 240 b of the balance with hairspring is used for detection electrostatic capacity. It is configured to face the capacitor electrode 250 b. The configuration of other parts of the mechanical timepiece according to the other embodiment of the present invention is the same as the configuration of the mechanical timepiece according to the embodiment of the present invention described above with reference to FIGS.

(6) Configuration of attitude detection unit of mechanical timepiece of the present invention

 Next, the configuration of the posture detection unit of the mechanical timepiece of the invention will be described.

Referring to FIG. 15, a posture detection unit 361 is provided to detect whether the posture of the mechanical timepiece is a flat posture or a standing posture. The attitude detector 3 6 1 is a rotating weight It includes 360, a posture detecting member 320, and a posture detecting electrode 322.

 (6-1) Configuration of Embodiment of Attitude Detector of Mechanical Watch of the Present Invention

 Hereinafter, a configuration of an embodiment of a posture detection unit of a mechanical timepiece of the present invention will be described. Referring to FIGS. 21 to 24, the posture detecting member 320 is fixed to the outer peripheral portion of the rotating weight 360. The rotating weight 360 is formed of a metal conductive material. The posture detecting member 320 is formed of a conductive material. The posture detecting member 320 is formed of a metal spring material (elastic material) such as stainless steel. In the mechanical timepiece of the present invention, the posture detecting member 320 is electrically connected to one electrode and the positive electrode of the power storage member via the main plate, the receiving member, and the rotating weight 360.

 The back cover 3 1 2 is fixed to the case member 330. An attitude detection electrode 322 is provided on the inner surface of the outer periphery of the back cover 312 via an insulating portion. The posture detecting electrode 3222 is provided over the entire inner surface of the outer peripheral portion of the back cover 312 (over 360 degrees with respect to the center of the clock) via the insulating portion.

 The posture detecting electrode 3 2 2 does not conduct with the back cover 3 12 and does not conduct with the case member 3 2 2. In addition, the posture detecting electrode 3222 does not conduct with the ground plate 102, does not conduct with the receiving members 160 and 166, and does not conduct with the rotary weight 360.

Attach the posture detection weight 3 2 O w to the tip of the posture detection member 3 20 c Change the position where the posture detection weight 3 2 O w is attached to the posture detection member 3 20 and / or detect the posture By changing the mass of the weight 320 w, the condition of the posture of the mechanical timepiece at which the posture detecting member 320 comes in contact with the posture detecting electrode 322 changes. That is, by changing the position where the posture detection weight 32 Ow is attached to the posture detection member 320 and / or changing the mass of the posture detection weight 32 Ow, the posture detection member 320 can be obtained. The conditions for determining whether the mechanical timepiece that comes into contact with the posture detection electrode 3222 is in the flat posture or the standing posture can be changed. Referring to FIG. 11, the posture detecting electrodes 3 2 2 are the same as the balance rotation control circuit 3 06.

 Referring to FIGS. 23 and 24, when the mechanical timepiece is placed in a flat posture, the posture detecting member 320 does not contact the posture detecting electrode 32.

 Referring to FIG. 22, when the mechanical timepiece is placed in the upright position, the tip of the position detecting member 320 is bent, so that the position detecting member 320 comes into contact with the position detecting electrode 32.

 When the posture detection member 3 20 contacts the posture detection electrode 3 22, the posture detection electrode 3

Since 2 is electrically connected to the plus electrode, the signal that detects the standing posture is output from the balance rotation control circuit.

It is input to 306.

 With this configuration, it is possible to accurately detect whether the mechanical timepiece is arranged in a flat posture or in a standing posture.

 When the mechanical timepiece is placed diagonally, the posture detecting member 3 2 0 and the posture detecting member 3 2 O 0 determines the critical angle of contact with the attitude detection electrode 3 2 2, and can detect whether the mechanical timepiece is placed in a flat attitude or an upright attitude. That is, when the mechanical timepiece is disposed obliquely at an angle between the horizontal arrangement and the critical angle, the posture detecting member 320 is set so that the posture detecting member 320 does not contact the posture detecting electrode 322. When the mechanical watch is arranged at an angle between the vertical position and this critical angle, the posture detecting member 320 contacts the posture detecting electrode 322. The posture detecting member 320 may be configured as described above.

(6-2) Configuration of Another Embodiment of Posture Detecting Unit of Mechanical Watch of the Present Invention

Hereinafter, a configuration of another embodiment of the posture detecting unit of the mechanical timepiece of the present invention will be described. In the following description, another embodiment of the posture detection unit of the mechanical timepiece of the present invention is described. Only parts different from the embodiment of the posture detecting unit of the mechanical timepiece of the present invention described above will be described. Therefore, portions not described below are the same as those of the above-described embodiment of the posture detecting unit of the mechanical timepiece of the present invention.

 Referring to FIG. 25 to FIG. 28, a posture detecting member 342 is provided on the outer periphery of the rotary weight 360. The posture detection member 342 is guided inside the guide member 338, and is configured to exit from the outer peripheral portion of the rotary weight 360 by the mass of the spherical pushing member 340. The posture detecting member 342, the guide member 338, and the spherical pressing member 340 are formed of a metal material such as stainless steel. In the mechanical timepiece of the present invention, the posture detecting member 342 is electrically connected to one of the electrodes and the positive electrode of the power storage member via the ground plate, the receiving member, and the rotating weight 360.

 A return spring 344 is provided inside the guide member 338 for pushing the posture detecting member 342 back from the outer peripheral portion of the rotary weight 360 toward the center.

 The back cover 3 1 2 is fixed to the case member 330. An attitude detection electrode 322 is provided on the inner surface of the outer periphery of the back cover 312 via an insulating portion. The posture detecting electrode 3222 is provided over the entire inner surface of the outer peripheral portion of the back cover 312 (over 360 degrees with respect to the center of the clock) via the insulating portion.

 Referring to FIGS. 27 and 28, when the mechanical timepiece is placed in a flat posture, the posture detecting member 3422 does not contact the posture detecting electrode 3222.

 Referring to FIG. 26, when the mechanical watch is placed in the vertical position, the return spring 3 4 4 is bent by the mass of the spherical push member 3 4 0, and the position detecting member 3 4 2 is connected to the position detecting electrode 3 2. Touch 2

 When the posture detecting member 320 contacts the posture detecting electrode 322, the posture detecting electrode 322 conducts with the plus electrode, so that a signal for detecting the standing posture is input to the balance rotation control circuit 306. You.

Even with this configuration, the mechanical watch is placed in a flat position, or It is possible to accurately detect whether they are arranged in a group.

 When the mechanical timepiece is placed diagonally, the posture detecting member 3442 can detect the posture by appropriately selecting the spring constant of the return spring 344 and the mass of the spherical pressing member 340. By determining the critical angle in contact with the working electrode 3222, it is possible to detect whether the mechanical timepiece is placed in a flat posture or in a standing posture.

 In other words, when the mechanical timepiece is placed obliquely at an angle between the horizontal position and this critical angle, a spherical pushing is performed so that the posture detecting member 342 does not contact the posture detecting electrode 322. When the mechanical timepiece is arranged at an angle between the vertical arrangement and this critical angle, the posture detection member 3 constitutes the member 340, the posture detection member 324, and the return spring 344. The spherical pressing member 340, the posture detecting member 342, and the return spring 344 may be configured so that the posture detecting electrode 322 contacts the posture detecting electrode 322.

(7) Configuration of power generation unit and power storage unit

 Next, the configuration of the power generation unit and the power storage unit of the mechanical timepiece of the invention will be described.

Referring to FIG. 1 and FIG. 11, a secondary battery 1 36 for operating the IC 404 is fixed to the main plate 102. _C that is the secondary battery 1 3 6 constituting the power storage unit 1 3 7, power storage unit 1 3 7 constitutes a power source for operating the IC 4 0 4. The power storage unit 137 may be composed of a secondary battery or a capacitor. Alternatively, a primary battery can be used instead of the power storage unit 1337.

 In the present invention, the base plate 102 is electrically connected to one electrode of the secondary battery 1336, for example, the plus electrode of the secondary battery 1336. As a result, the balance wheel 14 Ob is also electrically connected to the positive electrode of the secondary battery 13 36.

A power generation unit 150 is provided to charge the power storage unit 1337, that is, the secondary battery 1336. The power generation unit 150 may be a manually wound power generation mechanism that generates a voltage by the rotation of the winding stem 102, or may be an automatic winding power generation mechanism that generates a voltage by the rotation of the rotating weight. There may be.

 The power generation unit 150 may be arranged on the “back side” of the movement 400, or may be arranged on the “front side” of the movement 400.

 The structure of the power generation unit 150 is not shown in FIG. 1 because the same structure as the conventional structure can be used.

 FIG. 11 shows a schematic configuration when the power generation unit 150 is configured by a manually wound power generation mechanism. Referring to FIG. 11, the power generation unit 150 includes a hoisting mechanism 15 2 that is operated by rotation of the winding stem 102, and a gear train 1 that speeds up and transmits the rotation of the hoisting mechanism 152. 54, a rotor 1 56 rotating by the rotation of the speed increasing gear train 15 54; Includes a generator coil 158 that generates electromotive force by the rotation of the mouth 156, and a rectifier circuit 160 that rectifies the current generated in the generator coil 158. The current rectified by the rectifier circuit 160 flows to the secondary battery 136 constituting the power storage unit 137. A capacitor may be used instead of the secondary battery 1 36. The rectification operation performed by the rectifier circuit 160 may be half-wave rectification or full-wave rectification. The rectifier circuit can be built in the IC 404, or can be provided separately from the IC 404.

 The power generator is composed of a self-winding power generator, which means that the power generator is composed of a rotating weight, a speed increasing gear train that transmits the rotation of the rotating weight at a low speed, and a low speed gear that rotates by rotating the speed increasing gear train. And a stage having a roving hole facing the roving magnet, a generating coil for generating electromotive force by rotating the roving, and a rectifying circuit for rectifying a current generated in the generating coil. And The current rectified by the rectifier circuit is configured to flow through the secondary battery 1336.

Since the mechanical timepiece of the present invention includes the rotating weight 360, the power generation unit can be configured with an automatic winding generator system. For example, an electronic wristwatch with a power generation device is disclosed in Japanese Patent Application Laid-Open No. 61-2666989 and Japanese Patent Application Laid-Open No. 61-293431, and a portable watch with a charging function is disclosed in This is disclosed in Japanese Patent Application Publication No.

 As a modified example, it is possible to use a battery (primary battery) such as a silver battery or a lithium battery so that the power generation mechanism is not used.

(8) Structure of braking part

 Next, the configuration of the braking unit of the mechanical timepiece according to the present invention will be described.

 Referring to FIGS. 1 to 3, coils 180 a and 180 are attached to the front surface of main plate 102 so as to face the main plate side surface of balance wheel 140 b. The coil coils 180a and 180Ob constitute the control unit 146. The number of coils is, for example, two as shown in FIGS. 1 to 3, but may be one, two, three, or It may be four or more.

 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.

 As shown in Fig. 1 and Fig. 3, when a plurality of coils 180a and 18Ob are arranged, the circumferential distance between the coils 180a and 18Ob is 180a. , 180 b are preferably an integral multiple of the circumferential interval between the S and N poles of the balance magnet 140 e disposed in the opposite direction, but all coils are the same in the circumferential direction. The intervals need not be the same. 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 currents generated in the respective coils due to the electromagnetic induction. Alternatively, the wiring between the coils may be arranged in parallel so that the currents generated in the coils by electromagnetic induction do not cancel each other.

Referring to FIG. 10, the balance magnet 140 e has an annular (ring-shaped) shape, Along the circumference, for example, magnet parts consisting of 12 S poles 140 s 1 to 140 s 12 polarized vertically and 12 N poles 14 On 1 to 140 n 12 are alternately arranged. ing. The number of magnet parts arranged in an annular shape (ring) in the balance magnet 140 e is 12 in the example shown in FIG. 10, but may be two or more. Preferably, the length of one string is approximately equal to the outer diameter of one of the coils provided opposite the magnet part.

 A gap is provided between the balance magnet 140 e and the coils 180 a and 18 Ob. The gap between the balance magnet 140 e and the coils 180 a and 18 Ob is such that when the coils 180 a and 18 Ob are conducting, the magnetic force of the balance magnet 140 e can affect the coils 180 a and 18 Ob. It has been determined to be possible.

 When the coils 180a and 180b are not conducting, the magnetic force of the balance magnet 140e does not affect the coils 180a and 180b. The balance magnet 140e contacts the balance wheel rim portion of the balance wheel 140b with one surface contacting the ring-shaped rim of the balance wheel 140b and the other surface facing the front surface of the main plate 102. It is fixed by bonding.

 A first lead wire 182 is provided to connect one end of the coil 180 to the first coil terminal of the IC 404. A second lead 184 is provided to connect one end of the coil 180a to the second coil terminal of the IC 404.

The thickness of the hairspring 140 c (the thickness in the radial direction of the balance with hairspring) 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. Each of the coils 180a and 180b has, for example, eight turns and a coil wire diameter of about 25 micrometers. The gap between the balance magnet 140 e and the coils 180 a and 180 b is, for example, about 0.4 mm. (9) Functions of the posture detector, balance rotation detector, and brake

 Next, the operation of the attitude detecting unit, balance rotation detecting unit, and braking unit of the mechanical timepiece of the present invention will be described.

 The operation of the balance with hairspring 140 when the coils 180a and 18Ob are not conducting, that is, when the circuit including the coils 180a and 18Ob is open, will be described with reference to FIGS.

 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. 3, 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 away from the center of the balance with hairspring c. If the rotation angle (swing angle) of the balance with hairspring 140 is less than a certain threshold, for example, less than 180 degrees, the balance with hairspring By the operation of the rotation control circuit 406, the coils 180a and 18 Ob are configured not to conduct.

 Next, the operation of the balance with hairspring 140 when the coils 180a and 180b are conducting, that is, when the circuit including the coils 180a and 18Ob is closed will be described. That is, when the swing angle of the balance with hairspring 140 is 180 degrees or more, the coils 180a and 180b are configured to conduct.

When the swing angle of the balance with hairspring 140 becomes 180 degrees or more, the coils 180a and 180b are turned on by the operation of the balance with hairspring control circuit 406, and the rotation of the balance with hairspring 140 is caused by an induced current generated by a change in the magnetic flux of the balance with magnet 140e. Exercise exerts a force on balance 140 to suppress movement. The balance rotation control circuit 406, the coils 180a and 180b, and the balance magnet 140e apply a braking force to the balance 140 to suppress the rotation of the balance 140, thereby reducing the swing angle of the balance 140. It is configured to

 When the swing angle of the balance with hairspring 140 decreases from 0 degree to a range of less than 180 degrees, the operation of the balance rotation control circuit 406 causes the coils 180a and 180b to be turned off. It is configured not to conduct. Therefore, when the swing angle of the balance 140 exceeds 180 degrees and is less than 180 degrees, the coils 180a and 180b do not conduct, and the rotational movement of the balance 140 is suppressed. No power is required for the balance 140.

 Next, the operation of the balance rotation detecting unit and the braking unit in the mechanical timepiece of the present invention will be described.

 Referring to FIG. 11 and FIG. 12, the operation of the balance with hairspring rotation detection circuit 272 starts rotation detection of the balance with hairspring (step S51).

 The balance rotation detecting circuit 272 determines the time for detecting the swing angle of the balance with hairspring (step S52). The determination of the detection time of the swing angle of the balance with hairspring is performed by, for example, counting. The set time for performing the balance rotation detection is stored in advance in the balance rotation detection circuit 272.

 The set time for detecting the rotation of the balance with hairspring is, for example, about 1 hour. The set time for performing the rotation detection of the balance with hairspring is preferably about 0.25 to 6 hours, more preferably about 0.5 to 3 hours, and even more preferably about 1 to 2 hours. . When the balance rotation detection circuit 272 determines that the set time has elapsed, the balance rotation detection circuit 272 applies a voltage to the capacitance unit. That is, the balance rotation detection circuit 272 passes the detection capacitance electrode 250 to the detection terminal of the balance rotation detection circuit 272, and applies a voltage to the capacitance section (step S53). ).

 This applied voltage is, for example, a constant voltage of minus 1.5 volts. That is, the balance rotation detecting circuit 272 controls the timing of applying a voltage to the capacitance unit and the magnitude of the applied voltage.

If the balance rotation detecting circuit 2 7 2 determines that the set time has not elapsed, the step S 5 Return to 2 and repeat the operation to determine the detection time.

 When the balance rotation detection circuit 272 applies a voltage to the capacitance portion, the capacitance detection circuit 273 connects the balance balance electrode portion 240 with the detection capacitance electrode 250. Measure the change in capacitance between the two.

 Next, the balance rotation control circuit 406 inputs a signal relating to a change in the capacitance output from the capacitance detection circuit 273, and the balance balance electrode portion 240 and the detection capacitance are input. The swing angle of the balance 140 is calculated based on the measurement result of the change in the capacitance between the balance 250 and the electrode 250. Then, the balance rotation control circuit 406 determines the swing angle of the balance 140 (step S54).

 Here, as described above, the balance rotation control circuit 406 preliminarily sets the initial value of the capacitance between the balance balance electrode section 240 and the detection capacitance electrode 250 and the balance. The relationship between the value of the capacitance between the balance electrode portion 240 and the detection capacitance electrode 250 and the swing angle of the balance 140 is stored. Therefore, the calculation of the swing angle of the balance with hairspring 140 is performed using the value after the change in the capacitance between the balance with hairspring capacitance electrode section 240 and the capacitance of detection electrode 250.

 When the balance rotation control circuit 400 determines that the swing angle of the balance 140 is equal to or larger than the set angle, the balance rotation detection circuit 272 turns off the operation of applying a voltage to the capacitance unit (Step S). 5 5).

 Next, the balance rotation control circuit 406 detects the attitude of the mechanical timepiece, and determines whether the mechanical timepiece is in the vertical attitude or the flat attitude (step S58).

 That is, the balance rotation control circuit 406 detects the presence / absence of a signal indicating the standing posture output from the posture detecting electrode 3222 to detect whether the mechanical timepiece is in the standing posture or the flat posture. I do.

Here, for example, the balance rotation control circuit 406 outputs a signal indicating the standing posture, which is output from the posture detecting electrode 3222, for a certain detection time threshold, for example, continuously for 5 seconds. When the force is applied, the mechanical watch determines that it is in the upright position, and the signal indicating the upright position output by the position detection electrode 3222 outputs a threshold value for a certain detection time, for example, 5 seconds continuously. If not, it is configured to determine that the mechanical watch is in a flat position.

 If the signal indicating the standing posture output from the posture detecting electrodes 3 2 2 is not output continuously for 5 seconds, and the state where the signal indicating the standing posture is not output does not continue continuously for 5 seconds. For example, the balance rotation control circuit 406 determines that the mechanical watch is in the upright position when the posture detection electrode 3 22 2 first outputs a signal indicating the upright position, and the posture detection electrode 3222 is configured to first determine that the mechanical timepiece is in the flat posture when it does not output a signal indicating the standing posture.

 When the attitude of the mechanical watch is determined based on the signal output from the attitude detection electrode 3 22 first, the threshold value of the time limit to be determined in this way is output from the attitude detection electrode 3 22 It is preferable that the signal is set to be about 3 to 4 times the threshold value of the continuous detection time.

 With this configuration, it is possible to reliably detect the posture of the mechanical timepiece by eliminating the influence of the chattering of the posture detection member 320 on the posture detection electrode 322. -If the balance rotation control circuit 406 detects that the mechanical timepiece is in the flat posture, the balance rotation control circuit 406 determines the coil 180 a, The 18 Ob is made conductive (step S60). When the coils 180a and 180b are turned on, an induced current is generated by a change in the magnetic flux of the balance magnet 140e, and a force that suppresses the rotational movement of the balance 140 is generated. Effect. The swing angle of the balance with hairspring 140 is reduced by applying a braking force to the balance with balance 140 to suppress the rotation of the balance with hairspring 140.

The operating conditions for the flat posture for the balance rotation control circuit 406 to conduct the coils 180a and 180b to reduce the swing angle of the balance 140 are determined in advance by experiments. It is preferable that the balance is obtained and stored in the balance rotation control circuit 406.

 If the balance rotation control circuit 406 detects that the mechanical timepiece is in the vertical position, the balance rotation control circuit 406 determines the coils 180 a, 1 in the operating conditions for the vertical position. Conduct 8 Ob (step S61). When the coils 180a and 180b are made conductive, an induced current is generated by a change in the magnetic flux of the balance magnet 140e, and a force that suppresses the rotational movement of the balance 140 is generated. Effect. The swing angle of the balance with hairspring 140 is reduced by applying a braking force to the balance with balance 140 to suppress the rotation of the balance with hairspring 140.

 The operating conditions for the standing posture for the balance rotation control circuit 406 to conduct the coils 180a and 180b to reduce the swing angle of the balance 140 are also obtained by experiments in advance. It is better to store it in the balance rotation control circuit 406.

 When the balance rotation control circuit 406 conducts the coils 180a and 180b, the balance rotation control circuit 406 determines the time for detecting the attitude of the mechanical clock. (Step S62). The determination of the detection time for detecting the posture is performed, for example, by counting. The set time at which the posture is to be detected is stored in advance in the balance rotation control circuit 406.

 The set time for detecting the attitude of the mechanical clock is, for example, about 10 minutes. The set time for detecting the posture is preferably about 1 to 60 minutes, more preferably about 5 to 30 minutes, and even more preferably about 10 to 15 minutes. .

 In the present invention, the set time for detecting the posture of the mechanical timepiece is set to be shorter than the set time for detecting the rotation of the balance with hairspring described above. For example, when the set time for detecting the posture of the mechanical timepiece is about 10 minutes, the set time for detecting the rotation of the balance with hairspring is preferably 1 hour.

The balance rotation control circuit 406 determines that the set time for detecting the posture has passed. Then, the balance rotation detecting circuit 272 again determines the time for detecting the swing angle of the balance with hairspring (step S63). The determination of the detection time of the swing angle of the balance with hairspring is performed, for example, by a clock. The set time for performing the balance rotation detection is stored in advance in the balance rotation detection circuit 272.

 The set time for detecting the rotation of the balance with hairspring is, for example, about 1 hour. The set time for performing the balance rotation detection is the same as the set time described above.

 When the balance rotation control circuit 406 determines that the set time for performing the posture detection has not elapsed, the process returns to step S62. Then, the operation of determining the detection time for detecting the posture is repeated.

 When the balance rotation detecting circuit 272 determines that the set time for detecting the swing angle has elapsed, the process returns to step S53 '.

 When the balance rotation detection circuit 272 determines that the set time for detecting the swing angle has not elapsed, the process returns to step S58.

 The relationship between the time during which the balance rotation control circuit 406 conducts the coils 180a and 180b and the swing angle of the balance balance 140 is determined in advance through experiments, and the result is used as the balance rotation control. It is stored in the circuit 406.

 The set angle of the swing angle of the balance with hairspring 140 is stored in the balance with hairspring rotation control circuit 406 in advance. The setting angle of the swing angle of the balance 140 is, for example, 180 degrees. The set angle of the swing angle of the balance 140 is preferably 150 to 210 degrees. In step S54, when the balance with hairspring rotation control circuit 406 determines that the swing angle of the balance with hairspring 140 is smaller than the set angle, the balance with hairspring rotation detection circuit 272 applies the voltage to the capacitance section. Is turned off (step S56). In this case, the balance rotation control circuit 406 does not conduct the coils 180a and 180b (step S57).

 Then, returning to step S52, the operation of determining the detection time is repeated.

Therefore, in the mechanical timepiece of the present invention, the swing angle of the balance 140 is accurate and efficient. $ Ij can be controlled.

(10) Configuration of Circuit Used in Mechanical Watch of the Present Invention

 Further, in the embodiment of the mechanical timepiece of the present invention, circuits for performing various functions are provided.

It may be configured in the IC, or the IC may be a PLA-IC incorporating programs for performing various operations.

 Further, in the embodiment of the mechanical timepiece of the present invention, if necessary, an external element such as a resistor, a capacitor, a coil, a diode, a transistor, etc. can be used together with the IC.

(11) Effects of the present invention

 As described above, the present invention provides a balance with a balance with an escapement / governing device that repeats clockwise and counterclockwise rotation, an escape wheel and wheel that rotates based on the rotation of a front train wheel, and In a mechanical timepiece configured to include an ankle that controls the rotation of a handwheel, an attitude detection unit for detecting the attitude of the mechanical timepiece and a balance rotation for detecting a swing angle of the balance with hairspring. Since the detection section and the braking section for controlling the rotation angle of the balance with hairspring are provided, the accuracy of the mechanical timepiece can be improved without reducing the duration of the mechanical timepiece.

 That is, in the present invention, by focusing on the correlation between the instantaneous rate and the swing angle, and keeping the swing angle constant, the change in the instantaneous rate is suppressed, and the advance and delay of the clock per day are reduced. Was adjusted as follows.

In contrast, in conventional mechanical watches, the swing angle changes over time due to the relationship between the duration and the swing angle. Furthermore, the instantaneous rate changes over time due to the relationship between the swing angle and the instantaneous rate. For this reason, it was difficult to maintain a certain level of accuracy and to extend the duration of the clock. (1 2) Simulation of instantaneous rate

 Next, the results of a simulation on the instantaneous rate performed on the mechanical timepiece of the present invention developed to solve the problem of the conventional mechanical timepiece will be described. Referring to FIG. 18, in the mechanical timepiece of the present invention, first, as shown by a thin line in FIG. 18, the instantaneous rate of the timepiece is adjusted to be advanced.

 That is, in the mechanical timepiece of the present invention, as shown by the thin line in FIG. 18, the rate of the flat posture in the state in which the coil spring is completely wound up is about 23 seconds / day (about 23 seconds / day). Seconds), the rate of standing posture is about 18 seconds / day (about 18 seconds per day), and after 20 hours from the full winding state, the rate of flat posture is about 17 seconds / day Nari (approximately 17 seconds a day), the rate of standing posture is about 13 seconds / day (approximately 13 seconds per day), and the standing posture rate is 30 hours after full winding. Approximately-2 seconds / day (approx. 2 seconds delay per statement), flat rate is approximately-3 seconds / day (approximately 3 seconds delay per statement).

 In the mechanical timepiece of the present invention, when the braking unit is operated, 27 hours have elapsed since the braking unit was activated, that is, the mainspring was completely wound up, as shown by the thick line in FIG. Until the moment, the instantaneous rate can be maintained at about 5 seconds / day (maintain a state advanced by about 5 seconds per day). Seconds / day (about 2 seconds late per day).

 The mechanical timepiece having the balance rotation angle control mechanism of the present invention controls the instantaneous rate of the timepiece by controlling the swing angle of the balance with hairspring. Compared to a watch, the elapsed time from the entire volume, which has an instantaneous rate of about 0 to 5 seconds / day, can be extended.

That is, in the mechanical timepiece of the present invention, the duration at which the instantaneous rate is within about ± 5 seconds / day is about 32 hours. The value of this duration is The duration at which the instantaneous rate is within about ± 5 seconds / day is about 1.45 times that of about 22 hours.

 Therefore, a simulation result was obtained in which the mechanical timepiece of the present invention was much more accurate than the conventional mechanical timepiece.

[Industrial applicability]

 The mechanical timepiece of the present invention has a simple structure and is suitable for realizing a highly accurate mechanical timepiece.

 Furthermore, since the mechanical timepiece of the present invention is provided with the light detection type balance angle detection unit, manufacturing and adjusting the rate of the mechanical timepiece are extremely easy.

Claims

The scope of the claims 1. The mainspring that constitutes the power source of the mechanical timepiece, the front train wheel that rotates by the rotational force when the mainspring is unwound, and the escapement / governing device that controls the rotation of the front train wheel The escapement and speed governor are equipped with a balance that alternates between clockwise and counterclockwise rotation, an escape 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. In a mechanical timepiece configured to include an ankle for controlling the balance, a swing angle of the balance with hairspring (140) is detected by detecting a capacitance that changes according to an operation state of the balance with hairspring (140). Balance rotation detector (276) provided to perform  An attitude detector (361) for detecting the attitude of the mechanical watch,  When the swing angle of the balance with hairspring (140) detected by the balance rotation detector (276) is equal to or greater than a preset angle, the balance is detected based on a signal relating to the attitude of the mechanical watch detected by the attitude detector (361). A braking unit (146) configured to apply a force to the balance (140) to suppress rotation of the balance (140); A mechanical timepiece comprising:  2. In order to measure the rotation operation of the balance with hairspring (140), the balance electrode (240) of the balance with hairspring is arranged on the balance with hairspring (140). Including the detection capacitance electrodes (250, 250b) which are arranged with a certain gap to the part (240, 240b) and are arranged on the base plate (102) via the insulating part (242) 2. The mechanical timepiece according to claim 1, wherein: 3. The balance-capacitance electrode section (240) is connected to the balance wheel (140b) via a balance-insulating section (242) for insulating the balance (140) and the balance-capacity electrode section (240). 3.The fixing device according to claim 2, wherein Mechanical clock.  4. The mechanical timepiece according to claim 2, wherein the balance electrode portion (240) is fixed to a side surface of an outer peripheral portion of a balance wheel (140b).  5. The balance with hairspring electrode portion (240b) is connected to the balance with hairspring arm (242b) through the balance with hairspring (242b) for insulating the balance with hairspring (140) and the balance with hairspring capacitance electrode (240b). 140. The mechanical timepiece according to claim 2, wherein the mechanical timepiece is arranged on a lower surface of the main plate side of 140 f).  6. The mechanical timepiece according to claim 2, wherein the balance-capacitance electrode section (240b) is arranged on the lower surface of the balance arm section (140f) on the ground plate side.  7. The braking part (146) is provided with a coil (180a, 1a) arranged so as to be able to brake the movement of the balance magnet (140e) provided on the balance with hairspring (140). 80b). The mechanical timepiece according to any one of claims 1 to 6, wherein  8. The balance rotation detection circuit (272) configured to control the voltage applied to the balance electrode (240), the balance electrode (240), and the detection capacitance electrode The capacitance detection circuit (273) provided to measure the change in capacitance between the capacitance detection circuit (250) and the balance output from the capacitance detection circuit (273). ) And the detection capacitance electrode (250), and input a signal related to a change in capacitance between the balance and the balance electrode (240) and the detection capacitance electrode (250). A balance rotation control circuit (406) configured to calculate the swing angle of the balance with hairspring (140) based on the measurement result of the change in capacitance; When the swing angle of the balance with hairspring (140) is less than a certain threshold value, the balance rotation control circuit (406) does not conduct the coil (180a, 180b), and the balance of the balance with hairspring (140) If the swing angle is greater than or equal to the certain threshold, (180a, 180b) The mechanical timepiece according to claim 7, wherein:  9. The balance rotation detection circuit (272), the capacitance detection circuit (273), and a power storage unit (137) for operating the balance rotation control circuit (406). 8. The mechanical watch according to 8.  10. The mechanical timepiece according to claim 9, further comprising a power generation unit (150) for charging the power storage unit (137).  11. The attitude detecting unit (361) includes a rotating weight (360), an attitude detecting member (320) provided on the rotating weight (360), and an attitude detecting member (320) when the mechanical timepiece is in an upright attitude. 11. An electrode (322) for posture detection for outputting a detection signal to a balance rotation control circuit (306) in contact with the balance rotation control circuit (306). Mechanical clock.  12. The posture detecting section (361) includes a rotating weight (360), a posture detecting member (352) provided on the rotating weight (360), and a posture detecting member (352) when the mechanical timepiece is in an upright posture. ) To output a detection signal to the balance rotation control circuit (306), and the posture detection member (352) to detect the posture when the mechanical watch is in the flat posture. A return spring (344) provided to prevent contact with the electrode (322), and a position detection member (352) provided to contact the position detection electrode (322) when the mechanical watch is in the upright position. The mechanical timepiece according to any one of claims 1 to 10, further comprising a spherical pressing member (340) provided.