JPH1184027A - Electrically controlled mechanical timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrically controlled mechanical timepiece the power generating efficiency of which can be improved surely. SOLUTION: A spring 11g which stores the torque from a spiral spring is installed to the sixth wheel gear 11e of a sixth wheel 11 constituting a wheel train and the gear 11e is rotated at a high speed in a moment by releasing the spring 11g from the torque storing state. Therefore, a rotor which is coupled with the gear 11e can also be rotated at a high speed in a moment and the power generating efficiency of an electronically controlled mechanical timepiece can be improved by increasing the angular velocity of the rotor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention converts mechanical energy when a spring is released into electric energy by a generator,
The present invention relates to an electronically controlled mechanical timepiece that controls the rotation of a rotor by operating rotation control means with the electric energy to accurately move a hand fixed to a wheel train.

[0002]

2. Description of the Related Art A generator converts the mechanical energy released by a mainspring into electric energy by a generator, and activates a rotation control means by the electric energy to control a current value flowing through a coil of the generator, thereby producing a train wheel. An electronically controlled mechanical timepiece which accurately displays the time by accurately moving the hands fixed to the hands described in JP-A-8-5758 is known.

In such an electronically controlled mechanical timepiece, a rotor of a generator is rotated by a mainspring torque transmitted through a wheel train, and power obtained by converting this rotation into electric energy is once used. The power is supplied to a smoothing capacitor, and the power from the capacitor drives a circuit control means including an IC and a crystal oscillator. Therefore, in order to drive the circuit control means more accurately, it is necessary to improve the power generation efficiency of the generator and to secure a sufficient electromotive force.

[0004]

However, in order to improve the power generation efficiency and secure the electromotive force, for example, if the number of turns of the coil of the generator is increased, the influence of the external magnetic field is increased. There is a problem that malfunction of the device easily occurs.

[0005] Further, when the speed increase ratio of the torque transmission system by the train wheel is increased to thereby increase the angular velocity of the rotor to improve the power generation efficiency, there arises a problem that mechanical loss and magnetic loss increase. Conversely, if the angular velocity of the rotor is increased without increasing the speed increase ratio, the spring is released more quickly, which causes a problem that the duration of the system becomes shorter.

Further, when a multi-pole magnet is employed to increase the angular velocity of the rotor, the cogging torque of the rotor increases, and the mechanical loss (rough torque) increases as the weight of the rotor increases. As a result, the rotor may not move.

As described above, in the conventional electronically controlled mechanical timepiece, it is difficult to improve the power generation efficiency because various adverse effects occur when trying to improve the power generation efficiency.

[0008] An object of the present invention is to provide an electronically controlled mechanical timepiece capable of reliably improving power generation efficiency.

[0009]

SUMMARY OF THE INVENTION An electronically controlled mechanical timepiece according to the present invention comprises a mainspring, a rotor that rotates with a mainspring torque transmitted through a wheel train, and a rotary machine including the rotor. An electronically controlled type comprising: a generator for converting the rotation of a child into electric energy via a coil; a pointer coupled to the wheel train; and rotation control means for controlling the generator driven by the converted electric energy. A mechanical timepiece, characterized in that an elastic member for temporarily accumulating a mainspring torque is provided on any of the number wheels constituting a wheel train. In the present invention, since the elastic member for accumulating torque from the mainspring is provided in the wheel set of the train wheel, the elastic member storing the torque is released, so that the wheel rotates at high speed by the torque. In addition, the rotor connected to the second wheel also instantaneously rotates at a high speed at a large angular velocity, and the power generation efficiency is improved.

At this time, it is desirable to provide the inertia imparting member in the vicinity of the wheel provided with the elastic member. In such a case, almost all the torque accumulated in the elastic member is used to rotate the wheel, so that the angular speed of the wheel becomes significantly higher than the angular speed of the kana, and It will surely rotate at high speed.

Also, in the electronically controlled mechanical timepiece of the present invention,
It is preferable that the rotor is configured to increase the speed more than the shift wheel provided with the elastic member, thereby further increasing the angular velocity of the rotor.

Further, the rotor may be a multi-pole magnet.
In the electronically controlled mechanical timepiece of the present invention, since the torque accumulated in the elastic member is transmitted to the rotor at a stretch, even if the rotor is a multi-pole magnet, it is affected by an increase in the cogging torque and the rough torque of the rotor. It becomes difficult. Therefore, the merit of using the rotor as a multipole magnet, that is, the merit that the angular velocity of the rotor can be further increased can be obtained.

[0013] In the above description, the generator is provided with a series of stators provided with an arrangement hole in which the rotor is arranged, and a recess or a protrusion may be provided in an inner peripheral portion of the arrangement hole of the stator. Good. In such a case, the stator can be easily manufactured by making the stator continuous and integral.In addition, the stator and the stator are provided by providing a recess or a projection in the arrangement hole where the rotor is arranged. Since the magnetic force between the rotors can be changed, the cogging torque of the rotor can be easily adjusted by appropriately setting the number or size of the depressions or protrusions.

Further, in the above, the winding stem, which is a switching part for performing the needle correction, and a regulating lever which moves in conjunction with the winding stem are provided, and when the winding stem is pushed in, the teeth of the regulating lever are pushed. Thus, the second wheel may be configured to rotate. In such a case, a regulating lever that pushes the gear in conjunction with the winding stem is provided, so even if the hands and the system are stopped to perform needle alignment, the winding stem is pushed in to rotate the gear and rotor. To generate power, and the system is surely restarted.

Next, the features of the electronically controlled mechanical timepiece of the present invention relating to the setting of the mainspring torque and the cogging torque of the rotor and the control of the rotation control means and the like will be described.

First, in the electronically controlled mechanical timepiece of the present invention,
The cogging torque (rotating cogging torque of the rotor) required to rotate the stopped rotor through the wheel train is set to be larger than the maximum torque when the spring is released. In such a case, the cogging torque of the rotor is set to be larger than the maximum torque when the mainspring is released. Therefore, even when the mainspring is released, the rotor does not rotate. The turn wheel provided with the elastic member is also stopped. Therefore, without providing any special mechanical means or control means, the second wheel is maintained in a stopped state, the torque of the mainspring is reliably accumulated in the elastic member, and the structure and configuration of the system are simplified. You.

At this time, the maximum torque at the time of winding the mainspring may be set to be larger than the cogging torque of the rotor. In the above-mentioned state, the watch keeps stopping even if the mainspring is wound up to the maximum, but by setting the maximum torque at the time of winding the mainspring to be larger than the cogging torque, the momentary moment after the mainspring is wound up and released. Only in the middle, because it is given an opportunity to rotate with respect to the guard,
The rotor rotates slightly to generate power.
This is effective for starting the system in an electronically controlled mechanical timepiece in which the system stops due to the supply of the mainspring torque.

On the other hand, in the electronically controlled mechanical timepiece of the present invention,
The cogging torque of the rotor is set to be larger than the usage limit torque of the mainspring and smaller than the maximum torque when the mainspring is released, and when the torque of the mainspring is higher than the cogging torque, the rotation control means is connected to the coil of the generator. The rotor may be stopped by applying a voltage. In such a case, while the mainspring torque exceeds the cogging torque, the turn control (rotor) is stopped by the rotation control means, the torque is accumulated in the elastic member, and the mainspring torque is maintained. After the gear falls below the cogging torque, as described above, the center wheel is stopped by the cogging torque of the rotor, and the torque is accumulated. By the way, in the electronically controlled mechanical timepiece of the present invention, after accumulating the torque of the mainspring in the stopped stop wheel, the elastic member is released (rotating the stop wheel) to rotate the rotor at high speed. In this case, a cycle is repeated in which the second wheel is stopped and the accumulation of torque is started again. Hereinafter, features of control for maintaining this cycle will be particularly described.

That is, when the cog torque of the rotor is larger than the torque of the mainspring (including the maximum torque at the time of release), the release pulse is output to the coil of the generator when the turn is maintained in a stopped state. The rotation control means is configured to rotate the rotor. In such a case, a rotation torque is generated in the rotor by instantaneously outputting the release pulse to the coil. However, since this rotation torque is larger than the cogging torque, the wheel is given an opportunity to rotate, and Begins to rotate reliably.

At this time, a release pulse is periodically output, and the supply of the torque accumulated in the elastic member and the accumulation of the next torque are performed after the output of the release pulse and before the output of the next release pulse. It may be configured as follows. In such a case, since the torque is completely accumulated in the elastic member within a certain period of time and the pointer system temporarily stops, quartz hand movement is performed.

Further, the rotation control means may be configured to output a control pulse to the coil of the generator in order to stop the rotor and the count wheel rotating at a high speed. In such a case, the electromagnetic brake acts on the rotor for a moment, so that the rotor is reliably stopped.

It is preferable that the rotation control means be configured to count a generation induced voltage waveform generated by the generator and output a control pulse in accordance with the counted number. In the electronically controlled mechanical timepiece of the present invention, when the release member outputs a release pulse to release the elastic member, the pointer system rotates to move the hands, and the count wheel (rotor) rotates to start power generation. Then, when the control pulse is output, the turning wheel stops and power generation is stopped, but the pointer system continues to move, so that re-accumulation of torque in the elastic member starts. Thereafter, when the torque is completely accumulated in the elastic member, the pointer system stops. That is, since the pointer system rotates during power generation and while the torque is accumulated in the elastic member, it is necessary to constantly rotate by a fixed amount during this time in order to accurately keep time. By the way, in normal operation, the amount of rotation of the pointer system during power generation is determined by the time during which the elastic member is released, and the amount of rotation of the pointer system while the torque is accumulated in the elastic member depends on the amount of rotation of the elastic member. It only depends on whether you have been released. On the other hand, how much the elastic member is released corresponds to the time during which it is released, and this time corresponds to the number of pulses of the power generation induced voltage waveform. Therefore, if a control pulse is always output when the count number of the power generation induced voltage waveform reaches a predetermined number, the time during which the elastic member is released and the degree of release are constant for each cycle. The rotation amount of the pointer system during the accumulation of torque and the rotation amount of the pointer system during the accumulation of the torque are also constant, so that the rotation of the pointer system can always be surely rotated by a constant amount in accordance with the respective rotation amounts. Therefore, the speed is accurately adjusted before the next release pulse is output.

Further, in the electronically controlled mechanical timepiece of the present invention, the periodically output release pulse may be used for a rate measurement for measuring the time accuracy. In such a case, the release pulse is used. It is possible to obtain the average monthly difference of the electronically controlled mechanical timepiece.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] FIG. 1 is a plan view showing a main part of an electronically controlled mechanical timepiece according to a first embodiment of the present invention, and FIGS. 2 and 3 are sectional views thereof.

The electronically controlled mechanical timepiece includes a barrel wheel 1 comprising a mainspring 1a, barrel gear 1b, barrel barrel 1c, and barrel lid 1d. The outer end of the mainspring 1a is fixed to the barrel gear 1b, and the inner end is fixed to the barrel barrel 1c.
The barrel case 1c is supported by the main plate 2 and the train wheel bridge 3, and
And is fixed by a square hole screw 5 so as to rotate integrally therewith. The square wheel 4 is engaged with a hammer (not shown) so as to rotate clockwise but not counterclockwise. The square wheel 4 is rotated clockwise to rotate the mainspring 1a.
Is wound in the same manner as the automatic or manual winding mechanism of a mechanical timepiece, and the description is omitted.

The rotation of the barrel gear 1b is increased by a factor of 7 to the second wheel & pinion 7, and then sequentially increased by 6.4 times to the third wheel & pinion 8;
375 times increased to the fourth wheel 9, 3 times increased to the 5th wheel 10, 10 times increased to the 6th wheel 11, 10 times increased to the rotor 12 as a rotor, a total of 126, 000
The speed is doubled. A pinion pinion 7a is fixed to the center wheel & pinion 7, a minute hand 13 is fixed to the pinion pinion 7a, and a second hand 14 is fixed to the pinwheel & pinion 9 respectively. Therefore, when the second wheel & pinion 7 is rotated at 1 rpm and the fourth wheel & pinion 9 is rotated at 1 rpm, the barrel gear 1b becomes 1
/ 7 rph.

As shown in FIG. 4, the sixth wheel 11 of the second wheels 7 to 11 constituting the speed increasing wheel train is the sixth wheel 11.
a, a beard ball 11b, an inertia plate 11c, a stone 11d made of ruby or the like, a sixth gear 11e, and a spiral spring 11g as an elastic member. Sixth kana 11a, mustache ball 11
The b and the inertia plate 11c are fixed integrally, and the sixth gear 11e rotates independently via a stone 11d provided for reducing load resistance. An outer end of a spring 11g is fixed to an outer peripheral portion of the sixth gear 11e, and an inner end of the spring 11g is fixed to a beard ball 11b. A sixth gear 11e and a lower spring 11g
, And between the spring 11g and the inertial plate 11c.

The cogging torque Ts of the rotor 12 meshing with the sixth gear 11e is equal to the original cogging torque T.
s 'and the roughing torque Tm due to the meshing efficiency between the sixth gear 11e and the rotor pinion 12b (FIG. 3) and the lateral pressure of the rotor 12 (Ts ≒ Ts' + Tm).
In other words, the torque is necessary when the rotor 12 is to be rotated from the stopped state. The cogging torque Ts in the present embodiment is set to be larger than the maximum torque Tzmax (two-dot chain line) when the mainspring 1a is released, as shown in FIG. Therefore, when the rotor 12 is stopped, the sixth gear 11e meshing with the rotor 12 cannot rotate, and only the sixth pinion 11a, which is a pointer system, rotates by the driving torque supplied from the mainspring 1a. Is wound up, and the torque of the mainspring 1a is accumulated in the spring 11g. Then, in a state where the accumulation of the torque is completed and the spring 11g is wound up, the cogging torque Ts directly acts on the sixth pinion 11a, so that the sixth pinion 11a also cannot rotate, and the pointer system stops. However, in FIG. 9, the mainspring 1a has the maximum torque Tzi at the time of winding up set to be larger than the cogging torque Ts. A trigger for rotation is given. Note that Tz shown in FIG.
Is the torque of the mainspring over time (or the number of turns), and To is the utilization limit torque of the mainspring 1a.

This electronically controlled mechanical timepiece has a rotor 12,
The power generator includes a stator 15 made of PC permalloy or the like, a first coil block 16, and a second coil block 17. The rotor 12 is composed of a rotor magnet 12a, which is a multi-pole magnet having four S-N poles, for example, and four poles 12b. The stator 15 is an integral body having a stator body 15a, and has an arrangement hole 15b in which the rotor 12 is arranged. A pair of radially opposed recesses 15c are provided in the inner peripheral portion of the arrangement hole 15b, and the cogging torque Ts of the rotor 12 is adjusted so as to have the above-described set value. The first coil block 16 is formed by winding a coil 16b of 110,000 turns around a magnetic core 16a. The second coil block 17 is formed by winding a coil 17a of 40,000 turns around the stator body 15a. The first and second coil blocks 16 and 17 are arranged in parallel with each other to suppress the influence of an external AC magnetic field, and the first coil block 16 having the coil 16b having a large number of turns is mainly used for power generation. .

In such an electronically controlled mechanical timepiece, FIG.
As shown in (1), the AC output from the generator 20 is boosted and rectified through a rectification circuit 21 composed of step-up rectification, full-wave rectification, half-wave rectification, transistor rectification, and the like, and is charged in the smoothing capacitor 30. This condenser 30 has a rotor 1
2 is connected to a rotation control means 50 for controlling the rotation. The rotation control means 50 includes an oscillation circuit 51, a frequency dividing circuit 5
2. An integrated circuit (one-chip IC or the like) including an induced voltage waveform detection circuit 53, a control circuit 54, and the like. The oscillating circuit 51 outputs an oscillating signal from the crystal oscillator 60, and the oscillating signal
The frequency is divided by 1 to a one-second period, and is output to the control circuit 54 as a reference period signal. The control circuit 54 includes the rotor 1
2 is output to the coil 17a of the generator 20 at intervals of one second based on the reference period signal,
When the count of the power generation induced voltage waveform detected by the detection circuit 53 reaches a predetermined number n, a control pulse for stopping the rotor 12 is output to the coil 17a. Further, the output pulse output in a one-second cycle is used for a rate measurement for measuring time accuracy.

Next, the control operation in this embodiment will be described.

First, in FIG. 5, when the winding stem 6 is pulled out and the hands are stopped to perform the needle adjustment, the
The leading end of the regulating lever 6b is locked to the teeth of the sixth gear 11e via a, and the system of the electronically controlled mechanical timepiece is stopped. When the hour and minute hands are corrected in this state, and then the winding stem 6 is pushed in, the tooth of the sixth gear 11e is instantaneously pushed and pushed as the tip of the regulating lever 6b tries to return, whereby the torque is applied to the sixth gear 11e. Is given, the rotor 12 slightly rotates, a little power is generated, and the system is restarted.

On the other hand, when the driving torque Tz of the mainspring 1a is less than the use limit torque To and the pointer and the system are stopped, the sixth gear 11e is rotated by the maximum torque Tzi generated by winding the mainspring 1a. The trigger is given, again turning the rotor 12 slightly to start the system. The normal control operation after the system is started will be described with reference to the flowchart of FIG. 7 and the operation diagram of FIG.

When the system is started, a release pulse for rotating the rotor 12 for a moment is output from the control circuit 54 to the coil 17a (step 1 in FIG. 7, hereinafter step is abbreviated as S). As a result, a rotational torque is generated in the rotor 12, and since the rotational torque is greater than the cogging torque Ts, a trigger for rotation is given to the sixth gear 11e meshing with the rotor 12, and the sixth gear 11e starts rotating.
At this time, since the spring 11g is released, the torque from the mainspring 1a stored in the spring 11g is supplied at a stretch, and the sixth gear 11e rotates instantaneously at a large angular velocity.
Therefore, the rotor 12 connected to the sixth gear 11e is rotated at a higher angular velocity by increasing the speed, and a large electromotive force is immediately generated in the generator 20. During power generation, the power generation induced voltage waveform is counted by the induced voltage waveform detection circuit 53, and the rotor 12 is rotated until the count reaches a predetermined number n (S2). That is, when the predetermined number n is reached, the rotor 12
A control pulse is output from the control circuit 54 to the coil 17a so that the electromagnetic brake acts on the rotor 12 to stop the rotor 12 (S3). Thereby, the cogging torque Ts of the rotor 12
Then, the sixth gear 11e is stopped, only the sixth pinion 11a is rotated by the mainspring 1a, and the torque from the mainspring 1a is again accumulated in the spring 11g. Then, when the torque is completely accumulated in the spring 11g, as described above, the sixth kana 1
1a stops and the pointer stops. Here, the control circuit 54
Waits for exactly one second after the above-mentioned release pulse is output based on the reference period signal (S4), and then returns to S1
Return to output the release pulse. That is, in the present embodiment, the above-described S1 to S4 are performed as one cycle within one second, and thereafter, the hand is repeatedly operated until the mainspring 1a reaches the use limit torque To.

Next, the speed control of the electronically controlled mechanical timepiece will be described.

In this embodiment, as shown in FIG. 8, the pointer system is used during power generation (section L2 in "spring torque") and while torque is stored in the elastic member (L1).
Since it rotates in 3), in order to keep time accurately, the interval L
It is necessary to always rotate by a fixed amount corresponding to one second within one (L2 + L3). By the way, in normal operation, the rotation amount of the pointer system during power generation is determined by the time during which the spring 11g is released, and the rotation amount of the pointer system while the torque is accumulated in the spring 11g It only depends on whether you have been released. On the other hand, how much the spring 11g is released corresponds to the time when it is released,
This time corresponds to the number of pulses of the power generation induced voltage waveform. Therefore, the count number of the power generation induced voltage waveform is a predetermined number n.
Since the control pulse is always output at the time of, the time during which the spring 11g is released and the degree of release are constant for each cycle, the rotation amount of the needle system at L2 and the rotation of the pointer system at L3. The amount is also constant, and in L1, the pointer system is always rotated by a constant amount, that is, one second surely, by adjusting these rotation amounts. Therefore, the speed is accurately adjusted before the next release pulse is output.

According to the present embodiment, the following effects can be obtained.

1) A spring 11 for accumulating torque from the mainspring 1a is provided on a sixth wheel 1e of a sixth wheel & pinion 11 forming a wheel train.
Since the spring g is provided, the spring 11g is released from the state in which the torque is accumulated, so that the sixth gear 1e can be rotated at a high speed by the torque.
Therefore, the rotor 12 connected to the sixth gear 11e can also be rotated at a high speed instantaneously, and the angular velocity of the rotor 12 can be increased to improve the power generation efficiency.

2) Sixth Kana 1 which is the pointer system of the sixth wheel 11
1a is provided with an inertia plate 11c.
Almost all the torque stored in g can be used to rotate the sixth gear 11e. Therefore, the sixth gear 11
The angular speed of e can be significantly higher than the angular speed of the sixth pinion 11a, and the sixth gear 11e can be more reliably rotated at high speed.

3) Since the rotor 12 is configured to increase in speed more than the sixth gear 11e, the angular velocity of the rotor 12 can be increased from this point as well.

4) Since the rotor 12 is a multipole magnet, the angular velocity of the rotor 12 can be increased from this point as well. In addition,
In the present embodiment, since the torque accumulated in the spring 11g is transmitted to the rotor 12 at a stroke, even if the rotor 12 is a multi-pole magnet, the influence of the increase in the cogging torque Ts and the rough torque Tm of the rotor 12 is small, and the rotor 12 Can be reliably rotated at high speed.

5) Since the stator 15 of the generator 20 is integrated, its manufacture can be performed easily. Further, a pair of radially opposed recesses 15c are provided in the inner peripheral portion of the arrangement hole 15b of the stator 15, and the magnetic force between the stator 15 and the rotor 12 is accurately adjusted by this. Optimal cogging torque T
s can be easily obtained.

6) Since the cogging torque Ts of the rotor 12 is set to be larger than the maximum torque Tzmax when the mainspring 1a is released, the rotor 12 does not rotate even when the mainspring 1a is released, and is linked with the rotor 12. The sixth gear 11e can also be stopped. Therefore, in order to maintain the sixth gear 11e in the stopped state and to reliably accumulate the torque from the mainspring 1a in the spring 11g, there is no need to provide any special mechanical means or control means. Can be simplified.

7) From the control circuit 54 of the rotation control means 50, a release pulse for urging the rotation of the rotor 12 is output to the coil 17a, so that the rotor 12 can generate a rotation torque. At this time, since the rotation torque is larger than the cogging torque Ts of the rotor 12, by outputting the release pulse, a trigger for rotating the sixth gear 11e can be given.

8) The release pulse is periodically output every second, and the supply of the torque stored in the spring 11g and the storage of the next torque are performed after the release pulse is output and the next release pulse is output. Since the operation is performed before the operation, the pointer system can be temporarily stopped by completely accumulating the torque in the spring 11g within one second, and the pointer system can be operated by quartz movement.

9) In order to stop the rotor 12 and the sixth gear 11e rotating at high speed, the control circuit 54
Since the control pulse for causing the electromagnetic brake to act on the rotor 12 is output to the coil 17a, the rotor 12 can be reliably stopped.

10) Since the control pulse is output according to the count number counted by the induced voltage waveform detection circuit 53, the second hand 14 and the like are added by combining the rotation amount of the pointer system at L2 and the rotation amount of the pointer system at L3. The pointer can be reliably moved for one second, and the speed can be accurately adjusted within one second until the release pulse is output.

11) Since the maximum torque Tzi generated by winding up the mainspring 1a is set to be larger than the cogging torque Ts, an opportunity to rotate the sixth gear 11e in a moment after the mainspring 1a is wound up. Can be. Therefore, even when the pointer and the system are stopped because the driving torque Tz of the mainspring 1a becomes equal to or less than the use limit torque To, the main body of the mainspring 1a is wound up, so that the rotor 12 is slightly rotated and the system can be reliably started. . 12) Since the regulating lever 6b that pushes and pushes the sixth gear 11e in conjunction with the winding stem 6 is provided, even if the hands and the system are stopped in order to perform the needle adjustment, the winding stem 6 can be returned by returning the winding stem 6. The number gear 11e and the rotor 12 can be rotated to generate power, and the system can be reliably restarted. That is, it is not necessary to wind the mainspring 1a to the maximum every time the needle adjustment is performed, and the needle adjustment can be performed at any time.

13) Since the release pulse and the control pulse are exclusively output to the coil 17a having a small number of turns, the first coil block 16 having the coil 16b having a large number of turns can be mainly used for power generation. Therefore, power generation can be performed more efficiently, and a pulse line and a large electromotive force line can be clearly distinguished in an integrated circuit or the like, and the circuit design can be made superior.

14) First coil block 16 and second coil block 16
Since the coil blocks 17 are arranged in parallel with each other, the influence of an external AC magnetic field can be suppressed, and malfunction of the system can be prevented.

15) Since the gap A is provided between the sixth gear 11e and the spring 11g, they can be prevented from interfering with each other, and the load when the spring 1g is wound up or released can be reduced. 16) Since the release pulse output in a one-second cycle is used for measuring the rate of time for measuring the time accuracy, the average pulse difference of an electronically controlled mechanical timepiece can be obtained using the release pulse.

[Second Embodiment] In the electronically controlled mechanical timepiece according to the present embodiment, as shown in FIG. 10, the cogging torque Ts of the rotor 12 is equal to the usage limit torque T of the mainspring 1a.
o, and smaller than the maximum torque Tzmax when the spring 1a is released. Although not shown in a flowchart or the like, the control circuit 54 of the rotation control means 50 determines that the torque output from the spring 1a is cogging. When the torque is equal to or more than the torque Ts, a voltage is applied to the coil 17a of the generator 20 to maintain the rotor 12 in a stopped state.

In the present embodiment, while the torque output from the mainspring 1a exceeds the cogging torque Ts, the sixth gear 11e (rotor 12) is stopped by the rotation control means 50, and the torque is accumulated in the spring 11c. The sixth gear 11e is moved to the first
As in the embodiment, the operation is stopped at the cogging torque Ts and the torque is accumulated.

According to the present embodiment, the above 1) to 5),
The effects of 7) to 16) can be obtained in the same manner, and the following effects can be obtained in place of the effect of 6).

17) While the number of turns of the mainspring 1a is large and the torque is relatively large, the torque stored in the spring 11g is large, and the rotor rotates vigorously. The voltage can be supplied to apply the voltage to the coil 17a, and the rotation of the rotor 12 can be electrically stopped.

18) When the torque of the mainspring 1a is lower than the cogging torque Ts, the rotor 12 can be maintained in a stopped state by its own cogging torque Ts, so that the voltage application need not be performed as in the first embodiment. In addition, power consumption can be reduced. In other words, when the number of windings of the mainspring decreases with time and the output torque becomes relatively small, the momentum of the rotor 12 weakens and the electromotive force also decreases. However, such a situation can be adequately dealt with.

It should be noted that the present invention is not limited to the above embodiments, but includes other configurations capable of achieving the object of the present invention, and the following modifications are also included in the present invention.

The induced voltage waveform detection circuit 53 not only counts the waveform n times, but also considers that the rotor 12 may not stop instantaneously due to its inertial force.
Even after the count, the counter 12 may be configured to continue counting until the rotor 12 reliably stops. For example, when the rotor 12 rotates by n + 1 waveforms, the pointer system will rotate more than 1 second, but by counting the waveform after a predetermined number n,
In the next cycle, it is possible to perform correction by stopping the rotor 12 by outputting a control pulse at the time when n-1 waveforms have been counted, and it is difficult to generate a cumulative error even when a variation or impact of parts occurs. Speed control can be performed more reliably.

In the first embodiment, the speed increase ratio from the barrel wheel 1 to the rotor 12 is 126,000, but the speed increase ratio in the electronically controlled mechanical timepiece of the present invention is not limited to this.
It may be arbitrarily set by other parameters of the generator.

In the first embodiment, an electronically controlled mechanical timepiece displaying hours, minutes and seconds is described. However, the present invention can display only hours and minutes, or from 24 hours to 1/10 second. It can be applied to various electronically controlled mechanical watches.

Although the pair of recesses 15c are provided in the arrangement hole 15b of the stator 15, a pair of protrusions may be provided instead of the recess 15c to adjust the cogging torque Ts. At this time, the number, size, position, and the like of the depressions and protrusions may be appropriately determined according to the parameters of the generator 20.

The output cycle of the release pulse is not limited to one second, but may be determined in consideration of the above-described display form of the electronically controlled mechanical timepiece.

In the first embodiment, the stator 15 is integrated. However, the present invention includes a two-body stator having a high power generation induced voltage waveform depending on the parameters of the generator.

The shift wheel provided with the spring 11g is the sixth wheel 1
The number is not limited to one and may be any of the shift wheels forming the wheel train.

As the elastic member for accumulating the torque of the mainspring 1a, for example, a coil spring or the like can be applied in addition to the spiral spring 11g.

In the first embodiment, the regulating lever 6b also has a function of locking the sixth gear 11e and stopping the system, but this function may be omitted.

[0068]

As described above, according to the present invention,
Since any of the center wheels forming the wheel train is provided with an elastic member that stores torque from the mainspring, releasing the elastic member that has stored the torque allows the wheel and the wheel to be connected by the torque. The rotor can also be rotated at a high speed instantaneously, and there is an effect that the power generation efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main part of an electronically controlled mechanical timepiece according to a first embodiment of the invention.

FIG. 2 is a sectional view showing a main part of FIG.

FIG. 3 is another sectional view showing a main part of FIG. 1;

FIG. 4 is a front view of a partial cross section showing a constituent member of the embodiment.

FIG. 5 is a plan view showing another state of the embodiment.

FIG. 6 is a block diagram showing a configuration of a main part of the embodiment.

FIG. 7 is a flowchart showing control of the embodiment.

FIG. 8 is an operation diagram of the embodiment.

FIG. 9 is a torque diagram showing a relationship between a mainspring torque and a cogging torque of the embodiment.

FIG. 10 is a torque diagram illustrating a relationship between a mainspring torque and a cogging torque according to the second embodiment of the present invention.

[Explanation of symbols]

 1a Mainspring 6b Restriction lever 12 Rotor which is a rotor 13 Minute hand which is a pointer 14 Second hand which is another pointer 17a Coil 11th wheel which is the 11th wheel 11a 6th wheel 11c Inertial plate 11e which is an inertia imparting member 11e 6th wheel 11g Spring which is an elastic member 15 Stator 15b Arrangement hole 15c Depression 20 Generator 50 Rotation control means

Claims (14)

[Claims] 1. A mainspring, a rotor that rotates by the torque of the mainspring transmitted via a wheel train, and includes the rotor, and converts the rotation of the rotor into electric energy via a coil. An electronically controlled mechanical timepiece comprising: a generator; a pointer coupled to the wheel train; and rotation control means driven by the converted electric energy to control the generator. An electronically controlled mechanical timepiece is provided with an elastic member for temporarily storing the torque of the mainspring on any of the second wheels. 2. The electronically controlled mechanical timepiece according to claim 1, wherein an inertia-imparting member is provided on a pinion of the wheel provided with the elastic member. 3. The electronically controlled mechanical timepiece according to claim 1, wherein the speed of the rotor is configured to be higher than that of a shift wheel provided with the elastic member. An electronically controlled mechanical clock. 4. The electronically controlled mechanical timepiece according to claim 1, wherein said rotor is a multi-pole magnet. 5. The electronically controlled mechanical timepiece according to claim 1, wherein the generator includes a series of stators provided with an arrangement hole in which the rotor is arranged. An electronically controlled mechanical timepiece, wherein a depression or a protrusion is provided in an inner peripheral portion of the arrangement hole. 6. The electronically controlled mechanical timepiece according to claim 1, further comprising: a winding stem that is a switching part for performing a hand correction; and a regulating lever that moves in conjunction with the winding stem. An electronically controlled mechanical timepiece, wherein the regulating lever is configured to rotate the wheel by pressing the teeth when the winding stem is pushed in. 7. The electronically controlled mechanical timepiece according to claim 1, wherein the cogging torque required to rotate the stopped rotor via the wheel train is determined by releasing the mainspring. An electronically controlled mechanical timepiece characterized by being set to be larger than the maximum torque at the time. 8. The electronically controlled mechanical timepiece according to claim 7, wherein a maximum torque when the mainspring is wound is set to be larger than the cogging torque. 9. The electronically controlled mechanical timepiece according to claim 1, wherein the cogging torque required to rotate the stopped rotor via the wheel train uses the spring. The rotation control unit applies a voltage to the coil of the generator when the torque of the mainspring is equal to or greater than the cogging torque, and is set to be larger than a limit torque and smaller than a maximum torque when the mainspring is released. An electronically controlled mechanical timepiece configured to stop the rotor. 10. The electronically controlled mechanical timepiece according to claim 7, wherein said rotation control means outputs a release pulse to a coil of said generator to rotate said rotor. An electronically controlled mechanical timepiece characterized by being made. 11. The electronically controlled mechanical timepiece according to claim 10, wherein the release pulse is output periodically, and the supply of the torque stored in the elastic member and the storage of the next torque are performed by outputting the release pulse. An electronically controlled mechanical timepiece, which is configured to be performed after the release and before the next release pulse is output. 12. The electronically controlled mechanical timepiece according to claim 1, wherein said rotation control means outputs a control pulse to a coil of said generator to stop said rotor. An electronically controlled mechanical watch characterized by being made. 13. The electronically controlled mechanical timepiece according to claim 12, wherein the rotation control means counts a power generation induced voltage waveform generated by the generator and outputs the control pulse in accordance with the count number. An electronically controlled mechanical timepiece configured as described above. 14. The electronically controlled mechanical timepiece according to claim 10, wherein the release pulse is used for a rate measurement for measuring time accuracy.