JP2003075563A - Timepiece device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small timepiece device drivable with a low power consumption. SOLUTION: This timepiece device is provided with a first motor 1300 for displaying general time, a second motor 1400 for displaying a chronograph, a generator 1600 for generating a drive power for driving the first and second motors, and a zero-resetting mechanism 1200 for mechanically performing the reset to zero of the chronograph.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multifunctional timekeeping device having a hand.

[0002]

2. Description of the Related Art Conventionally, as a multifunctional timekeeping device having a hand, for example, there is an electronic timepiece having an analog display type chronograph function.

Such an electronic timepiece has, for example, an hour chronograph hand, a minute chronograph hand and a second chronograph hand for a chronograph, and a start / stop button provided on the electronic timepiece is pressed. Starts the time measurement, and the hour chronograph hand, minute chronograph hand and second chronograph hand rotate. And start again /
When the stop button is pressed, the time measurement ends, the hour chronograph hand, minute chronograph hand, and second chronograph hand stop and the measured time is displayed. Then, when the reset button provided on the electronic timepiece is pressed, the measurement time is reset, and the hour chronograph hand, the minute chronograph hand and the second chronograph hand return to the zero position (hereinafter referred to as zero return).

In addition, the electronic timepiece has a function of automatically stopping the hour chronograph hand, the minute chronograph hand, and the second chronograph hand at the start hand position of time measurement when the maximum measurement time is reached. With this function, even if you forget to press the start / stop button during time measurement, it is possible to prevent unnecessary power consumption.

The main body of the above-mentioned conventional electronic timepiece having an analog display type chronograph function which is a timekeeping device,
A motor that drives a hand that displays a normal time and a motor that drives a hand that displays a chronograph are built in.
Further, as a driving power source for these motors, a button type battery is also incorporated.

[0006]

However, when there are a plurality of hands for displaying the chronograph, the motors for driving the respective hands are incorporated, and the zero return of the chronograph is the zero return of each motor. The zero-return speed becomes slower because it is determined by the speed. Further, since it is necessary to drive a large number of these motors, the power consumption becomes large, so that a large high-capacity battery and a plurality of button type batteries are also incorporated. Therefore, there is a problem that the timepiece body becomes large.

Further, in recent years, as a driving power source for a motor or the like,
There is an electronic timepiece equipped with a power generation device that converts mechanical energy into electrical energy, but if this power generation device is incorporated into an electronic timepiece having an analog display type chronograph function,
As described above, the power generation device for covering a large amount of power consumption requires a large volume, and there is a problem that the main body of the timepiece becomes large, and it has not been put into practical use in the past.

An object of the present invention is to solve the above problems and to provide a timekeeping device which is compact and can be driven with low power consumption.

[0009]

According to the invention of claim 1, a first motor for displaying a normal time, a second motor for displaying a chronograph, and a mechanical energy to generate electricity. And a zero-reduction mechanism for mechanically performing zero-reduction of the chronograph, the power generator generating the driving power for driving the first and second motors. It is a timekeeping device.

In the invention of the first aspect of the present invention, since it has a chronograph, it is possible to measure an arbitrary time while displaying the normal time. Since the chronograph is mechanically reset to zero, it is possible to perform the reset to zero instantly and to drive a plurality of chronograph hands with one motor. In this case, the power consumption is significantly reduced as compared with the conventional technique that requires a plurality of motors to drive a plurality of needles. Therefore, a device that converts mechanical energy into electric energy as a drive source of a motor can sufficiently cope with it, and the power generation device can be downsized, and further, the timekeeping device can be downsized. .

According to a second aspect of the present invention, in the structure according to the first aspect, the zero-return mechanism is arranged at a substantially central position of the device main body and a zero-return lever for zeroing the chronograph. And a cam for operating the zero-return lever.

According to the second aspect of the present invention, the actuating cam is arranged substantially in the center of the main body of the timekeeping device.
The entire zero-reset mechanism can be made compact, and the button position and layout can be freely set by downsizing the main body of the timing device.

According to the invention of claim 3, in the structure of claim 1 or 2, there is provided a power supply device for supplying drive power generated by the power generator to the first and second motors. It is a equipped timing device. According to a fourth aspect of the invention, in the configuration of the third aspect, the power supply device charges the driving power generated in the power generation device and supplies the driving power to the first and second motors. And a second power supply unit, and the storage capacity of the second power supply unit is smaller than the storage capacity of the first power supply unit. According to the invention of claim 5 in the structure of claim 3,
The power supply device charges a driving power generated by the power generation device and supplies the driving power to the first and second motors, and a booster for boosting the driving power charged by the first power supply unit. A time measuring device having a circuit, a boost control circuit for controlling boosting of the boost circuit, and a second power supply section for storing drive power boosted by the boost circuit and supplying the power to the first and second motors. is there.

According to the third aspect of the present invention, when the drive power generated by the power generator is supplied to each motor, the power is temporarily stored by the power supply device. Therefore, the timekeeping is performed even when the power generator is not operating. The drive of the device can be maintained for a long time. In the invention according to claim 4, since the second power supply unit, which has a smaller storage capacity than the first power supply unit, stores electricity, the voltage of the second power supply unit rises and the timing device can operate instantly. Voltage becomes high, and the first and second motors can be driven. According to the invention of claim 5, since the booster circuit is provided, the second power supply unit is stored with the boosted voltage and the motor is driven even when the storage voltage of the first power supply unit becomes low. Therefore, it can be used for a long time.

The invention according to claim 6 is the timekeeping device according to any one of claims 1 to 5, wherein the chronograph has two or more types of time unit display portions. .

According to the sixth aspect of the present invention, a time unit such as 1/10 seconds or 12 hours can be displayed in addition to the normal time.

According to a seventh aspect of the present invention, in the structure of the sixth aspect, the display unit of the two or more types of time units is a timekeeping device driven by one second motor. The invention of claim 7 is realized by mechanically performing zeroing of the chronograph. Since two or more kinds of time units of the chronograph are driven by one motor, a device for converting mechanical energy into electric energy can be sufficiently used as a drive source of the motor.

The invention according to claim 8 is the timekeeping device according to the structure of claim 6, wherein the display unit of two or more types of time units has a train wheel.

In the invention according to claim 8, since the display units of two or more types of time units are operated in a train wheel,
Can be operated smoothly.

The invention according to claim 9 is the clock device according to any one of claims 1 to 8, wherein the power generation device includes a power generation rotor and a power generation coil. .

In the invention of the ninth aspect, the power generation rotor is rotated, and the drive power of the motor is generated in the power generation coil by electromagnetic induction.

The invention according to claim 10 is the timekeeping device according to the structure of claim 9, wherein the rotor for power generation is rotated by a rotary weight.

According to the tenth aspect of the invention, since the rotor for power generation is rotated by the rotary weight, the storage of the drive power of the motor can be automated.

According to the invention of claim 11, in the structure according to any one of claims 1 to 10, the timekeeping device is a wristwatch.

In the invention of the eleventh aspect, it is possible to configure as a chronograph which is small and does not require replacement of the battery or the like.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic block configuration diagram showing an embodiment of an electronic timepiece which is a timing device of the invention.

This electronic timepiece 1000 has a normal time section 11
00 and chronograph section 1200, and two motors 1300 and 1400 for driving each
00, 1400 for driving a large-capacity capacitor 1814 which is a second power supply unit and a secondary power supply 1500 which is a first power supply unit, and a power generation device 16 which stores electricity in a secondary power supply 1500.
00 and a control circuit 1800 for controlling the whole. Further, the control circuit 1800 includes a chronograph section 1
Switches 1821, 1 for controlling the 200 in a manner described below.
A chronograph controller 1900 having 822 is provided. Secondary power source 1500 and large-capacity capacitor 181
4 functions as a power supply device of the electronic timepiece 1000. In addition to the large-capacity capacitor 1814 and the secondary power source 1500, the control circuit 1800 will be described later (see FIG. 2).
The booster circuit 1813 and the booster control circuit 1815 that boost the drive power charged in the secondary power source 1500 and store it in the large-capacity capacitor 1814 are also used in the electronic timepiece 100.
0 functions as a power supply device.

This electronic timepiece 1000 is an analog electronic timepiece having a chronograph function, and includes a power generator 160.
Two motors 1300, 1 using the electric power generated by 0
400 is driven separately, and the normal time section 1100 and the chronograph section 1200 are moved. The chronograph section 1
The resetting (returning to zero) of 200 is performed mechanically, not by driving the motor, as described later.

FIG. 2 is a plan view showing an example of the appearance of a completed body of the electronic timepiece shown in FIG.

This electronic timepiece 1000 has an outer case 10
01 inside dial 01 and transparent glass 1003
Is inset. At the 4 o'clock position of the outer case 1001, a crown 1101 which is an external operation member is arranged,
A chronograph start / stop button (first activation means) 1201 and a reset button 1202 (second activation means) are arranged at the 2 o'clock position and the 10 o'clock position.

Further, at the 6 o'clock position of the dial 1002, a normal time display portion 1110 having an hour hand 1111, a minute hand 1112 and a second hand 1113, which are pointers for the normal time, is arranged, and the 3 o'clock position, the 12 o'clock position and At the 9 o'clock position, display units 1210, 1220, 12 equipped with auxiliary hands for the chronograph.
30 are arranged. That is, at the 3 o'clock position, a 12-hour display unit 1210 having hour / minute chronograph hands 1211 and 1212 is arranged, and at the 12-o'clock position, a 60-second display unit 1220 having a 1-second chronograph hand 1221 is arranged. At the 9 o'clock position, the 1/10 second chronograph hand 1231
1 second display section 1230 is provided. In this way, the display unit 121 equipped with the secondary needle for the chronograph
Since 0, 1220, and 1230 are arranged at positions other than the center of the main body of the electronic timepiece 1000, the operation cam 1240 of the zero-reset mechanism, which will be described later (see FIG. 8), is installed in the electronic timepiece 100.
It can be arranged at a position substantially at the center of the body of 0.

FIG. 3 is a plan view showing a schematic configuration example of the movement of the electronic timepiece shown in FIG. 2 when viewed from the back side.

This movement 1700 has a main plate 170.
1, the normal time portion 1100, the motor 130 on the 6 o'clock side
0, an IC 1702, a tuning fork type crystal unit 1703, and the like are arranged, and a chronograph section 1200, a motor 1400, and a secondary power source 150 such as a lithium ion power source are provided on the 12 o'clock side.
0 is placed.

Motors 1300 and 1400 are step motors, and coil blocks 1302 and 1402 having a magnetic core made of a high magnetic permeability material as a core, stators 1303 and 1403 made of a high magnetic permeability material, a rotor including a rotor magnet and a rotor pinion. It is composed of 1304 and 1404.

The normal time section 1100 has a fifth wheel 1121,
It is equipped with a wheel train of a fourth wheel 1122, a third wheel 1123, a second wheel 1124, a day wheel 1125, and an hour wheel 1126. With the wheel train configuration, a second display, a minute display, and an hour display of a normal time are provided. Is going.

FIG. 4 is a perspective view schematically showing the engagement state of the train wheel of the normal time portion 1100.

The rotor pinion 1304a is a fifth gear 1121.
The fifth pinion 1121b meshes with a and the fourth pinion 1122
It meshes with a. The reduction ratio from the rotor pinion 1304a to the fourth gear 1122a is 1/30, and the IC 170 is used so that the rotor 1304 rotates half a second.
By outputting an electric signal from 2, the fourth wheel & pinion 1122
Rotates once every 60 seconds, and the second hand 1113 fitted to the tip of the fourth wheel & pinion 1122 enables the second display of the normal time.

The fourth pinion 1122b is the third gear 11
23a meshes with the third pinion 1123b and the second pinion 11
It meshes with 24a. The reduction ratio from the fourth pinion 1122b to the second gear 1124a is 1/60,
The center wheel & pinion 1124 rotates once every 60 minutes, and the minute hand 1112 fitted to the tip of the center wheel & pinion 1124 enables the minute display of the normal time.

The second pinion 1124b is the sun gear 1
1125b meshes with 125a, and behind the sun 1125b is wheel 11
It meshes with 26. Second wheel kana 1124b to hour wheel 1
The reduction ratio up to 126 is 1/12, and the hour wheel 11
26 rotates once every 12 hours, and the hour hand 1111 fitted to the tip of the hour wheel 1126 enables the hour display at the normal time.

2 and 3, the normal time section 1100 has a crown 1101 fixed to one end and a hand wheel 1127 fitted to the other end, a winding stem 1128, a small iron wheel 1129, and a winding stem. Positioning means, train wheel setting lever 1130
Is equipped with. The winding stem 1128 is configured to be pulled out stepwise by the crown 1101. Winding true 112
When the winding stem 1128 is pulled out to the first step, the hour hand 111 is the normal state.
Calendar 1 can be adjusted without stopping, and when the winding stem 1128 is pulled out to the second stage, the hand movement is stopped and the time can be adjusted.

Pull the crown 1101 to wind the winding stem 112.
8 is pulled out to the second stage, the reset signal input portion 113 provided on the train wheel setting lever 1130 engaged with the winding stem positioning means.
0b contacts the pattern of the circuit board on which the IC 1702 is mounted, the output of the motor pulse is stopped, and the hand movement is stopped. At this time, the rotation of the fourth gear 1122a is regulated by the fourth train wheel setting portion 1130a provided on the train wheel setting lever 1130. In this state, the crown 110 and the winding stem 112
When 8 is rotated, the dial wheel 1127 to the small iron wheel 112
9. Rotational force is transmitted to the date driving wheel 1125 via the date driving intermediate wheel 1131. Since the second gear 1124a has a constant sliding torque and is coupled to the second pinion 1124b, even if the fourth wheel & pinion 1122 is set, the small iron wheel 11
29, back wheel 1125, second kana 1124b, hour wheel 1
126 rotates. Therefore, the minute hand 1112 and the hour hand 11
Since 11 rotates, an arbitrary time can be set.

2 and 3, the chronograph section 12
00 is 1/10 second CG (chronograph) intermediate wheel 123
It is equipped with a train wheel of 1 and 1/10 second CG car 1232.
A / 10 second CG wheel 1232 is arranged at the center position of the display unit 1230 for 1 second. With these train wheel configurations, the chronograph is displayed at 19:00 seconds at the 9 o'clock position on the timepiece.

In FIGS. 2 and 3, the chronograph section 1200 is a 1-second CG first intermediate wheel 1221 and a 1-second CG.
The second intermediate wheel 1222 and the wheel train of the 1-second CG wheel 1223 are provided, and the 1-second CG wheel 1223 is displayed for 60 seconds on the display unit 1220.
It is located at the center position. With these train wheel configurations, the chronograph is displayed for 1 second at the 12 o'clock position of the timepiece.

Further, in FIGS. 2 and 3, the chronograph section 1200 includes a minute CG first intermediate wheel 1211, a minute CG second intermediate wheel 1212, a minute CG third intermediate wheel 1213, and a minute CG.
The fourth intermediate wheel 1214, the hour CG intermediate wheel 1215, the minute CG wheel 1216, and the hour CG wheel 1217 are provided, and the minute CG wheel 1216 and the hour CG wheel 1217 are concentrically located at the center position of the 12-hour display unit 1210. It is arranged. With these wheel trains, the hour and minute of the chronograph are displayed at the 3 o'clock position of the timepiece.

FIG. 5 shows the chronograph section 1200-1.
It is a cross-sectional side view which shows the engagement state of the train wheel for / 10 second display.

The rotor pinion 1404a meshes with the 1/10 second CG intermediate gear 1231a, and the 1/10 second CG intermediate gear 1231a meshes with the 1/10 second CG gear 1232a. The speed reduction ratio from the rotor pinion 1404a to the 1/10 second CG gear 1232a is 1/5, and the IC 17 is used so that the rotor 1404 makes a half rotation in 1/10 seconds.
By outputting an electric signal from 02, 1/10 second C
G wheel 1232 rotates once per second, and 1/10 second CG wheel 12
32 1/10 second chronograph hand 12 fitted to the tip
31 makes it possible to display the chronograph for 1/10 seconds.

FIG. 6 shows this chronograph section 1200-1.
It is a sectional side view showing an engaged state of a train wheel for seconds display.

The 1/10 second CG intermediate gear 1231a meshes with the 1 second CG first intermediate gear 1221a and the 1 second CG first gear 1231a.
The intermediate pinion 1221b is a 1-second CG second intermediate gear 1222a.
Are in mesh with each other. Also, 1 second CG second intermediate kana 122
2b meshes with the 1-second CG gear 1223a. 1 /
As described above, the 10-second CG intermediate gear 1231a meshes with the rotor pinion 1404a.
To 1 second CG gear 1223a has a reduction ratio of 1/300
Has become. Therefore, the 1-second CG wheel 1223 makes one rotation in 60 seconds, and the 1-second chronograph hand 1221 fitted to the tip of the 1-second CG wheel 1223 can display the chronograph for 1 second.

FIG. 7 is a sectional side view showing the engaged state of the train wheel for displaying the time and minutes of the chronograph section 1200.

1 second CG Second intermediate gear 1222a is minute CG
The first CG first intermediate gear 1211a meshes with the first intermediate gear 1211a, and the minute CG first intermediate gear 1211a meshes with the minute CG second intermediate gear 1212a. Also, the minute CG second intermediate kana 1212b is the minute C.
The Gth third intermediate gear 1213a meshes with the minute CG third intermediate pinion 1213b and the minute CG fourth intermediate gear 1214a. Further, the minute CG fourth intermediate pinion 1214b meshes with the minute CG gear 1216a. Also, minutes CG
The pinion 1216b meshes with the hour CG intermediate gear 1215a, and the hour CG intermediate pinion 1215b engages the hour CG gear 1217a.
Are in mesh with each other. In FIGS. 5, 6 and 7, the reduction ratio from the rotor 1404 to the minute CG gear 1216a is 1.
/ 18000, the minute CG wheel 1216 makes one rotation in 60 minutes, and the minute chronograph hand 1212 fitted to the tip of the minute CG wheel 1216 enables the minute display of the chronograph. Further, the reduction ratio from the minute CG pinion 1216b to the hour CG gear 1217a is 1/12.
G car 1217 rotates once in 12 hours, and hour CG car 1217
A chronograph hour display can be made by the chronograph hand 1211 when engaged at the tip.

FIG. 8 is a plan view showing an example of a schematic structure of a start / stop and reset (return to zero) operating mechanism of the chronograph section 1200, as seen from the back lid side of the timepiece. FIG. 9 is a sectional side view showing a schematic configuration example of the main part. Incidentally, these figures show the reset state.

Start of this chronograph section 1200 /
The stop and reset actuation mechanism is arranged on the movement shown in FIG. 3, and the start / stop and reset are mechanically performed by the rotation of the actuation cam 1240 arranged at the substantially central portion. ing. The actuating cam 1240 is formed in a cylindrical shape, has teeth 1240a with a constant pitch along the circumference on the side surface, and columns 1240b with a constant pitch along the circumference on one end surface. The operating cam 1240 has teeth 1240a and teeth 1
Actuating cam jumper 12 locked between 240a
The stationary phase is regulated by 41, and is rotated counterclockwise by an operating cam rotating portion 1242d provided at the tip of the operating lever 1242. As shown in FIG. 10, the start / stop actuation mechanism includes actuation levers 1242,
Switch lever A1243 and transmission lever spring 1244
It is composed by.

The operating lever 1242 is formed in a substantially L-shaped flat plate shape, and has a pressing portion 1242a having a bent shape at one end, an elliptical through hole 1242b, and the pin 12.
42c is provided, and the pressing portion 1 having an acute angle is provided at the tip of the other end.
242d is provided. Such an operating lever 12
42, the pressing portion 1242a is opposed to the start / stop button 1201, and the pin 1242e fixed to the movement side is inserted into the through hole 1242b.
One end of the transmission lever spring 1244 is locked to 242c,
By arranging the pressing portion 1242d in the vicinity of the operation cam 1240, it is configured as a start / stop operation mechanism.

The switch lever A1243 has one end formed as a switch portion 1243a, a planar protrusion 1243b provided at substantially the center thereof, and the other end having a locking portion 12.
It is formed as 43c. In such a switch lever A1243, a substantially central portion is rotatably supported by a pin 1243d fixed to the movement side, a switch portion 1243a is arranged in the vicinity of a start circuit of a circuit board 1704, and a protruding portion 1243b is operated. The pin 1 is arranged so as to come into contact with the column portion 1240b provided in the axial direction of the cam 1240, and the locking portion 1243c is fixed to the movement side.
It is configured as a start / stop actuating mechanism by engaging with 243e. That is, switch lever A
The switch portion 1243a of 1243 is provided on the circuit board 1704.
The switch input comes in contact with the start circuit of. The switch lever A1243 electrically connected to the secondary power source 1500 via the main plate 1701 and the like is the secondary power source 15
00 has the same potential as the positive electrode. An example of the operation of the start / stop actuating mechanism having the above configuration will be described with reference to FIG.
~ It demonstrates with reference to FIG.

When the chronograph section 1200 is in the stopped state, as shown in FIG.
The pressing portion 1242a is the start / stop button 12
01, the pin 1242c is moved to the transmission lever spring 124.
4 is pressed in the direction of the arrow a by the elastic force of 4, and the through hole 1
One end of 242b is positioned while being pressed by the pin 1242e in the direction of the arrow b in the figure. At this time, the tip portion 1242d of the actuating lever 1242 has the actuation cam 1240
It is located between the teeth 1240a and 1240a.

The switch lever A1243 has a protrusion 12
43b is a spring portion 1243c provided at the other end of the switch lever A1243 by the pillar 1240b of the operation cam 1240.
Pushed up against the spring force of
3c is positioned while being pressed by the pin 1243e in the direction of the arrow c in the figure. At this time, switch lever A
The switch portion 1243a of 1243 is provided on the circuit board 1704.
The start circuit is electrically disconnected from the start circuit.

In order to shift the chronograph section 1200 from this state to the start state, as shown in FIG.
When the start / stop button 1201 is pushed in the direction of the arrow a in the figure, the pressing portion 1242a of the operating lever 1242 comes into contact with the start / stop button 1201 and is pushed in the direction of the arrow b in the figure, and the pin 1242c moves the transmission lever spring 124.
4 is pressed to elastically deform in the direction of arrow c in the figure. Therefore, the entire actuating lever 1242 moves in the direction of the arrow d in the figure with the through hole 1242b and the pin 1242e as guides. At this time, the tip portion 1242d of the operating lever 1242
Touches and presses the side surface of the tooth 1240a of the actuating cam 1240 to rotate the actuating cam 1240 in the direction of arrow e in the figure.

At the same time, the rotation of the actuating cam 1240 causes the side surface of the column 1240b and the projection 1243b of the switch lever A 1243 to be out of phase with each other, so that the columns 1240b and 1240.
When reaching the gap b, the protrusion 1243b becomes
The restoring force of 43c enters the gap. Therefore, the switch portion 1243a of the switch lever A1243 rotates in the direction of the arrow f in the figure to come into contact with the start circuit of the circuit board 1704, so that the start circuit becomes electrically conductive.

At this time, the operating cam jumper 1241
The front end portion 1241a of the tooth 1240 of the actuating cam 1240.
Pushed up by a.

Then, the above operation is continued until the teeth 1240a of the actuating cam 1240 are fed by one pitch. After that, when the start / stop button 1201 is released, as shown in FIG.
201 is automatically returned to its original state by a built-in spring. Then, the pin 124 of the operating lever 1242
2c is pressed in the direction of arrow a in the figure by the restoring force of the transmission lever spring 1244. Therefore, the entire operating lever 1242 moves in the direction of the arrow b in the figure until one end of the through hole 1242b contacts the pin 1242e, using the through hole 1242b and the pin 1242e as a guide, and returns to the same position as in FIG.

At this time, the protruding portion 1243b of the switch lever A1243 is connected to the pillar 1240b of the actuating cam 1240.
Since the switch portion 1243a remains in the gap between the column 1240b and the column 1240b, the switch portion 1243a is in contact with the start circuit of the circuit board 1704, and the start circuit is electrically connected. Therefore, the start state of the chronograph section 1200 is maintained.

At this time, the operating cam jumper 1241
The front end portion 1241a of the tooth 1240 of the actuating cam 1240.
It enters between a and the tooth 1240a to regulate the reverse rotation of the operation cam 1240.

On the other hand, when the chronograph section 1200 is stopped, the same operation as the above-mentioned start operation is carried out, and finally the state shown in FIG. 10 is restored.

As described above, by pushing the start / stop button 1201, the operating lever 1242 is swung to rotate the operating cam 1240, and the switch lever A 1243 is swung to start / stop the chronograph section 1200. Can be controlled.

As shown in FIG. 8, the reset operation mechanism includes an operation cam 1240, a transmission lever 1251, a hammer transmission lever 1252, a hammer intermediate lever 1253, and a hammer activating lever 1.
254, transmission lever spring 1244, hammer intermediate lever spring 1255, hammer jumper 1256, and switch lever B
1257. Further, the reset operation mechanism includes a heart cam A1261 and a zero return lever A126.
2, zero return lever A spring 1263, heart cam B126
4, zeroing lever B1265, zeroing lever B spring 126
6, a heart cam C1267, a zeroing lever C1268, a zeroing lever C spring 1269, a heart cam D1270, a zeroing lever D1271 and a zeroing lever D spring 1272.

Here, the reset operation mechanism of the chronograph section 1200 is constructed so that the chronograph section 1200 does not operate in the start state, but the chronograph section 1200 operates in the stop state. Such a mechanism is referred to as a safety mechanism. First, the transmission lever 1251 and the hammer transmission lever 125 that constitute this safety mechanism.
2, hammer intermediate lever 1253, transmission lever spring 124
4, hammer intermediate lever spring 1255, hammer jumper 125
6 will be described with reference to FIG.

The transmission lever 1251 is formed in a substantially Y-shaped flat plate shape, and has a pressing portion 1251a provided at one end thereof and an elliptical through hole 1251b provided at one end of the forked portion. A pin 1251c is provided in the middle of the through hole 1251b. Such a transmission lever 1251 has the pressing portion 1251a and the reset button 1
202, the pin 1252c of the hammer transmission lever 1252 is inserted into the through hole 1251b, the other end of the fork is rotatably supported by the pin 1251d fixed to the movement side, and the pin 1251c is transmitted to the transmission lever. Spring 12
By locking the other end of 44, a reset operation mechanism is formed.

The hammer transmission lever 1252 has a substantially rectangular flat plate-shaped first hammer transmission lever 1252a and a second hammer transmission lever 1252b which are superposed on each other and are axially supported by a shaft 1252g which is rotatable with respect to each other at a substantially central portion. It consists of The pin 1252c is provided at one end of the first hammer transmission lever 1252a, and pressing portions 1252d and 1252e are formed at both ends of the second hammer transmission lever 1252b.
Such a hammer transmission lever 1252 has a pin 1252c.
Is inserted into the through hole 1251b of the transmission lever 1251,
The other end of the first hammer transmission lever 1252a is rotatably supported by a pin 1252f fixed to the movement side, and the pressing portion 1252d is further provided with a hammer intermediate lever 1253.
By arranging the pressing portion 1252e in the vicinity of the operating cam 1240 so as to face the pressing portion 1253c of the above, the reset operating mechanism is configured.

The hammer intermediate lever 1253 is formed in a substantially rectangular flat plate shape. Pins 1253a and 1253b are provided at one end and an intermediate part respectively, and one corner of the other end serves as a pressing part 1253c. Has been formed. In such a hammer intermediate lever 1253, one end of the hammer intermediate lever spring 1255 is locked to the pin 1253a, and the pin 1253a is locked.
3b is engaged with one end of the hammer for jumper 1256, and the pressing portion 1253c is connected to the pressing portion 1 of the second hammer transmission lever 1252b.
A reset actuating mechanism is formed by facing the 252d and rotatably pivoting the other corner of the other end to the pin 1253d fixed to the movement side.

An example of the operation of the safety mechanism having the above configuration is
This will be described with reference to FIGS.

When the chronograph section 1200 is in the start state, as shown in FIG.
Is positioned with the pressing portion 1251a separated from the reset button 1202 and the pin 1251c being pressed in the direction of the arrow a in the figure by the elastic force of the transmission lever spring 1244. At this time, the pressing portion 1252e of the second hammer transmission lever 1252b is located outside the gap between the column 1240b of the actuating cam 1240 and the column 1240b.

In this state, as shown in FIG. 14, when the reset button 1202 is pressed in the direction of arrow a, the pressing portion 1251a of the transmission lever 1251 causes the reset button 1202 to move.
2 is pressed in the direction of the arrow b in the drawing to contact the pin 1251.
c presses the transmission lever spring 1244 to elastically deform it in the direction of arrow c in the figure. Therefore, the entire transmission lever 1251 rotates about the pin 1251d in the direction of the arrow d in the figure. Then, along with this rotation, the first hammer transmission lever 1
Since the pin 1252c of 252a moves along the through hole 1251b of the transmission lever 1251, the first hammer transmission lever 1252a is centered on the pin 1252f and indicated by the arrow e.
Rotate in the direction.

At this time, the second hammer transmission lever 1252b
The pressing portion 1252e of the column 1240 of the operating cam 1240
b and the column 1240b, the pressing portion 125
Even if 2d contacts the pressing portion 1253c of the hammer intermediate lever 1253, the second hammer transmission lever 1252b moves the shaft 12
Since the stroke is absorbed by rotating around 52g,
The pressing portion 1253c is not pressed by the pressing portion 1252d. Therefore, the operating force of the reset button 1202 is interrupted by the hammer transmission lever 1252 and is not transmitted to the reset operation mechanism after the hammer intermediate lever 1253, which will be described later. Therefore, when the chronograph section 1200 is in the start state, it is erroneously mistaken. It is possible to prevent the chronograph section 1200 from being reset even if the reset button 1202 is pressed. On the other hand, when the chronograph section 1200 is in the stop state, as shown in FIG.
1 is positioned with the pressing portion 1251a separated from the reset button 1202 and the pin 1251c being pressed in the direction of the arrow a in the figure by the elastic force of the transmission lever spring 1244. At this time, the pressing portion 1252e of the second hammer transmission lever 1252b is connected to the column 1240b of the operation cam 1240.
Is in contact with the side of.

In this state, as shown in FIG. 16, when the reset button 1202 is manually pushed in the direction of the arrow a, the pressing portion 1251a of the transmission lever 1251 causes the reset button 1
The pin 12 is contacted with 202 and pressed in the direction of the arrow b in the drawing.
51c presses the transmission lever spring 1244 and the arrow c
Elastically deforms in the direction. Therefore, the entire transmission lever 1251 rotates about the pin 1251d in the direction of the arrow d in the figure. Then, along with this rotation, the first hammer transmission lever 1
Since the pin 1252c of 252a is moved along the through hole 1251b, the first hammer transmission lever 1252a is
The pin 1252f rotates in the direction of the arrow e in the figure.

At this time, the second hammer transmission lever 1252b
The pressing portion 1252e of the column 1240 of the operating cam 1240
Since it can be stopped at the side of b, the second hammer transmission lever 125
2b rotates about a shaft 1252g in the direction of arrow f in the figure. By this rotation, the pressing portion 1252d of the second hammer transmission lever 1252b comes into contact with and presses the pressing portion 1253c of the hammer intermediate lever 1253, so that the hammer intermediate lever 1253 is centered on the pin 1253d in the direction of the arrow g in the figure. It will rotate to. Therefore, the operating force of the reset button 1202 is transmitted to the reset operating mechanism after the hammer intermediate lever 1253, which will be described later. Therefore, when the chronograph portion 1200 is in the stop state, the chronograph 1202 is pressed by pressing the reset button 1202. The part 1200 can be reset. When this reset is applied, the contact of the switch lever B1257 contacts the reset circuit of the circuit board 1704, and the chronograph part 1200 is electrically reset.

Next, the chronograph section 1200 shown in FIG.
Hammer activation lever 1254, heart cam A1261, return-to-zero lever A that constitutes the main mechanism of the reset operation mechanism of
1262, zero return lever A spring 1263, heart cam B1
264, zero return lever B1265, zero return lever B spring 12
66, heart cam C1267, zero return lever C1268,
The zero return lever C spring 1269, the heart cam D1270, the zero return lever D1271 and the zero return lever D spring 1272 will be described with reference to FIG.

The hammer activating lever 1254 is formed in a substantially I-shaped flat plate shape, and has an elliptical through hole 125 at one end.
4a is provided, and the lever D restraining portion 1254b is provided at the other end.
And a lever B restraining portion 1254c and a lever C restraining portion 1254d are formed in the central portion. Such a hammer activating lever 1254 is fixed such that the central portion thereof is rotatable, and the hammer intermediate lever 1 is provided in the through hole 1254a.
By inserting the pin 1253b of 253, it is configured as a reset operation mechanism.

Heart cams A1261, B1264, C1
267 and D1270 are 1/10 second CG cars 1232 and 1
Second CG wheel 1223, minute CG wheel 1216 and hour CG wheel 12
It is fixed to each of the rotating shafts of 17.

One end of the zero-return lever A1262 is formed as a hammer portion 1262a for hitting the heart cam A1261, a rotation regulating portion 1262b is formed at the other end, and a pin 1262c is provided at the central portion. Such a zero-return lever A1262 is reset by pivotally supporting the other end on a pin 1253d fixed to the movement side and locking one end of the zero-return lever A spring 1263 to the pin 1262c. It is configured as an operating mechanism.

One end of the zero-return lever B1265 is formed as a hammer portion 1265a for hitting the heart cam B1264, and the other end portion thereof has a rotation regulating portion 1265b and a pressing portion 126.
5c is formed, and a pin 1265d is provided in the central portion. Such a zero-reset lever B1265 has the other end rotatably supported by the pin 1253d fixed to the movement side, and the pin 1265d is provided with the zero-reset lever B spring 1.
By locking one end of 266, it is configured as a reset operation mechanism.

One end of the zero-return lever C1268 is formed as a hammer portion 1268a for hitting the heart cam C1267, and the other end portion thereof has a rotation regulating portion 1268b and a pressing portion 126.
8c is formed, and a pin 1268d is provided in the center. Such a zero-return lever C1268 has the other end rotatably supported by a pin 1268e fixed to the movement side, and the pin 1268d has a zero-return lever C spring 1.
By locking one end of 269, it is configured as a reset operation mechanism.

One end of the zero-return lever D1271 is formed as a hammer portion 1271a for hitting the heart cam D1270, and the other end is provided with a pin 1271b. Such a zero-reset lever D1271 is rotatably supported at the other end by a pin 1271c fixed to the movement side, and one end of the zero-reset lever D spring 1272 is locked to the pin 1271b to reset. It is configured as an operating mechanism.

An example of the operation of the reset actuating mechanism having the above configuration will be described with reference to FIGS. 17 and 18.

When the chronograph section 1200 is in the stop state, as shown in FIG. 17, the zero return lever A126.
In No. 2, the rotation setting portion 1262b is locked to the rotation setting portion 1265b of the zero-return lever B1265, and the pin 1262c is pressed in the direction of the arrow a in the figure by the elastic force of the zero-return lever A spring 1263.

The zero-return lever B1265 is provided with the rotation regulating section 12
65b is the lever B restraining portion 12 of the hammer activating lever 1254.
54c, the pressing portion 1265c is pressed against the side surface of the column 1240b of the actuating cam 1240, and the pin 1265d is positioned in the direction indicated by the arrow b in the figure by the elastic force of the zero return lever B spring 1266. ing.

The zero-return lever C1268 is provided with the rotation regulating section 12
68b is the lever C restraining portion 12 of the hammer activating lever 1254.
54d, the pressing portion 1268c is pressed against the side surface of the column 1240b of the actuating cam 1240, and the pin 1268d is positioned with being pressed in the direction of the arrow c in the figure by the elastic force of the zero-return lever C spring 1269. ing.

The zero-return lever D1271 has a pin 1271b.
Is the lever D restraining portion 1254 of the hammer start lever 1254.
It is locked to b, and the zero return lever D spring 1272
Is positioned in a state of being pressed in the direction of the arrow d in the figure by the elastic force of.

Therefore, each zero-return lever A1262, B12
65, C1268, D1271 hammer portions 1262
a, 1265a, 1268a, 1271a are heart cams A1261, B1264, C1267, D1270.
Is positioned at a predetermined distance from.

In this state, as shown in FIG. 16, when the hammer intermediate lever 1253 rotates about the pin 1253d in the direction of the arrow g in the figure, as shown in FIG. 18, the pin 1253b of the hammer intermediate lever 1253. But the hammer start lever 1
Since the through hole 1254a is moved while being pushed in the through hole 1254a of 254, the hammer activating lever 1254 rotates in the direction of arrow a in the figure.

Then, the rotation setting portion 1265b of the zero-return lever B1265 is disengaged from the lever B restraining portion 1254c of the hammer activating lever 1254, and the pressing portion 1265c of the zero-return lever B1265 is separated from the columns 1240b and 1240b of the operating cam 1240. Enter the gap. This causes the pin 1265d of the zero return lever B1265 to move to the zero return lever B spring 12
The restoring force of 66 pushes in the direction of arrow c in the figure. At the same time, the regulation of the rotation regulating section 1262b is released, and the pin 1262c of the zero-return lever A1262 moves to the zero-return lever A spring 1.
It is pressed in the direction of the arrow b in the figure by the restoring force of 263. Therefore, the zero return lever A1262 and the zero return lever B1265
Rotates around the pin 1253d in the directions indicated by arrows d and e, and the hammer parts 1262a and 1265a hit and rotate the heart cams A1261 and B1264 to rotate the 1/10 second chronograph hand 1231 and the 1 second chronograph. The needles 1221 are each zeroed.

At the same time, the rotation setting portion 1268b of the zero-return lever C1268 is disengaged from the lever C restraining portion 1254d of the hammer actuating lever 1254, and the pressing portion 1268c of the zero-return lever C1268 is separated from the columns 1240b and 1240b of the operating cam 1240. The pin 1268d of the zero-return lever C1268 is pressed in the direction of the arrow f in the figure by the restoring force of the zero-return lever C spring 1269. Further, the pin 1271b of the zero-return lever D1271 is connected to the hammer starting lever 12
The lever D is separated from the lever D restraining portion 1254b. As a result, the pin 1271b of the zero-return lever D1271 is pressed in the direction of the arrow h in the figure by the restoring force of the zero-return lever D spring 1272. Therefore, the zero-return lever C1268 and the zero-return lever D1271 rotate about the pins 1268e and 1271c in the directions of the arrows i and j shown in the drawing, and the hammer portions 1268a and 1271a move to the heart cams C1267.
And D1270 are hit and rotated, and the hour and minute chronograph hands 1211 and 1212 are respectively reset to zero.

Through the series of operations described above, when the chronograph section 1200 is in the stop state, the chronograph section 1200 can be reset by pressing the reset button 1202.

FIG. 19 is a schematic perspective view showing an example of a power generator used in the electronic timepiece of FIG.

This power generating apparatus 1600 includes a power generating coil 1602 wound around a highly permeable material, a power generating stator 1603 made of a highly magnetic permeable material, and a power generating rotor 16 having a permanent magnet and a pinion.
04, one-sided rotary weight 1605 and the like.

The rotary weight 1605 and the rotary weight wheel 1606 disposed below the rotary weight 1605 are rotatably supported by the shaft fixed to the rotary weight receiver, and the rotary weight screw 1607 prevents the axial weight from coming off. is doing. The rotary weight wheel 1606 meshes with the pinion portion 1608a of the power generation rotor transmission wheel 1608, and the gear portion 1608b of the power generation rotor transmission wheel 1608 is
It meshes with the pinion 1604a of the power generation rotor 1604. This train wheel is speeded up from about 30 times to about 200 times. This speed increasing ratio can be freely set according to the performance of the power generator and the specifications of the timepiece.

In such a structure, when the rotary weight 1605 rotates due to the operation of the user's arm or the like, the power generation rotor 1
604 rotates at high speed. Since a permanent magnet is fixedly attached to the power generation rotor 1604, each time the power generation rotor 1604 rotates, the power generation coil 1 passes through the power generation stator 1603.
The direction of the magnetic flux that links 602 changes, and an AC voltage is generated in the magneto coil 1602 by electromagnetic induction. This AC voltage is rectified by the rectifier circuit 1609 and the secondary battery 1
It is charged to 500.

FIG. 20 is a schematic block diagram showing a configuration example of the entire system excluding the mechanical portion of the electronic timepiece shown in FIG.

For example, an oscillation frequency of 32 kHz output from a crystal oscillation circuit 1801 including a tuning fork crystal oscillator 1703.
The signal SQB of z is input to the high frequency dividing circuit 1802 and is divided into frequencies from 16 kHz to 128 Hz.
The signal SHD divided by the high-frequency divider circuit 1802 is input to the low-frequency divider circuit 1803 and from 64 Hz to ⅛
It is divided down to a frequency of 0 Hz. The frequency generated by the low frequency division circuit 1803 can be reset by the basic timepiece reset circuit 1804 connected to the low frequency division circuit 1803.

The signal SLD divided by the low frequency dividing circuit 1803 is input to the motor pulse generating circuit 1805 as a timing signal, and when the divided signal SLD becomes active, for example, every 1 second or 1/10 second, the motor A driving pulse and a pulse SPW for detecting the rotation of the motor are generated. The motor driving pulse SPW generated by the motor pulse generation circuit 1805 is supplied to the motor 1300 of the normal time section 1100 to drive the motor 1300 of the normal time section 1100, and at a different timing from this. The pulse SPW for detecting the rotation of the motor is supplied to the motor detection circuit 1806,
An external magnetic field of 0 and rotation of the rotor 1304 of the motor 1300 are detected. The external magnetic field detection signal and the rotation detection signal SDW detected by the motor detection circuit 1806 are
It is fed back to the motor pulse generation circuit 1805.

AC voltage S generated by power generator 1600
The AC is the rectifier circuit 160 via the charge control circuit 1811.
9, the half-wave rectified wave is converted into the DC voltage SDC, and the secondary battery 1500 is charged. Secondary battery 1500
The voltage SVB between both ends of the battery is constantly or occasionally detected by the voltage detection circuit 1812, and the corresponding charge control command SF is detected depending on whether the charge amount of the secondary battery 1500 is excessive or insufficient.
C is input to the charge control circuit 1811. Then, based on this charging control command SFC, stop / start of supply of the AC voltage SAC generated by the power generation device 1600 to the rectifier circuit 1609 is controlled.

On the other hand, the DC voltage SDC charged in the secondary power source 1500 is input to the booster circuit 1813 including the boosting capacitor 1813a and boosted by a predetermined multiple. Then, the boosted DC voltage SDU is stored in the large-capacity capacitor 1814.

Here, the boosting is a means for surely operating the secondary power source 1500 even when the voltage of the secondary power source 1500 is lower than the operating voltage of the motor or the circuit. That is, both the motor and the circuit are driven by the electric energy stored in the large capacity capacitor 1814. However, the voltage of the secondary power source 1500 is 1.
When it gets close to 3V, a large-capacity capacitor 1814
And a secondary power source 1500 are connected in parallel and used.

The voltage SVC across the large-capacity capacitor 1814 is constantly or at any time detected by the voltage detection circuit 1812, and the corresponding boost command SUC is output by the boost control circuit depending on the remaining amount of the electric quantity of the large-capacity capacitor 1814. 1815 is input. And this boost command SU
Based on C, the boosting ratio SW in the boosting circuit 1813
C is controlled. The boosting ratio is a ratio when the voltage of the secondary power supply 1500 is boosted and is generated in the large capacity capacitor 1814 (the voltage of the large capacity capacitor 1814).
/ (Voltage of secondary power source 1500), triple, double,
It is controlled by a magnification such as 1.5 times or 1 time.

Switch A1821 and reset button 120 attached to start / stop button 1201
The start signal SST or the stop signal SSP or the reset signal SRT from the switch B1822 attached to the switch 2 determines whether the start / stop button 1201 is pressed or not, and the switch input circuit 1823 or the reset button 1202 is pressed or not. Via a switch input circuit / chattering prevention circuit 1823 for determining whether
It is input to the mode control circuit 1824 which controls each mode in the chronograph section 1200. In addition, switch A1
821 includes a switch lever A which is a switch holding mechanism.
1243 is provided, and the switch B1822 is provided with a switch lever B1257.

The signal SHD divided by the high frequency dividing circuit 1802 is also input to the mode control circuit 1824. Then, the start signal SST outputs a start / stop control signal SMC from the mode control circuit 1824, and the chronograph reference signal SCB generated by the chronograph reference signal generation circuit 1825 by the start / stop control signal SMC is the motor pulse. Generation circuit 1
826.

On the other hand, the chronograph reference signal generation circuit 18
The chronograph reference signal SCB generated at 25 is also input to the chronograph low frequency divider circuit 1827, and the signal SHD divided by the high frequency divider circuit 1802 is synchronized with this chronograph reference signal SCB. 64 Hz to 16
It is divided down to a frequency of Hz. The signal SCD divided by the chronograph low-frequency dividing circuit 1827 is input to the motor pulse generating circuit 1826.

Then, the chronograph reference signal SCB and the frequency-divided signal SCD are input to the motor pulse generation circuit 1826 as timing signals. For example, the divided signal SCD becomes active from the output timing of the chronograph reference signal SCB every 1/10 second or 1 second, and the pulse for driving the motor and the pulse for detecting rotation of the motor SPC are generated by the divided signal SCD. Is generated. Motor drive pulse SP generated by the motor pulse generation circuit 1826
C is supplied to the motor 1400 of the chronograph section 1200, and the motor 1400 of the chronograph section 1200 is supplied.
Is driven, and the pulse SPC for detecting the rotation of the motor at a timing different from that is driven by the motor detection circuit 1
828 to the external magnetic field of the motor 1400 and rotation of the rotor of the motor 1400. Then, the external magnetic field detection signal and the rotation detection signal SDG detected by the motor detection circuit 1828 are fed back to the motor pulse generation circuit 1826.

Further, the chronograph reference signal generation circuit 1
The chronograph reference signal SCB generated in 825 is also input to and counted by a 16-bit automatic stop counter 1829, for example. When this count reaches a predetermined value, that is, the measurement limit time, the automatic stop signal SA
S is input to the mode control circuit 1824. At this time, the reset signal SRC is input to the chronograph reference signal generation circuit 1825, and the chronograph reference signal generation circuit 1825 is stopped and reset.

When the stop signal SSP is input to the mode control circuit 1824, the output of the start / stop control signal SMC is stopped and the chronograph reference signal SCB is output.
Is also stopped and the motor 1 of the chronograph section 1200 is stopped.
The driving of 400 is stopped. Then, after the generation of the chronograph reference signal SCB is stopped, that is, after the generation of the start / stop control signal SMC is stopped, the mode control circuit 182 is generated.
4 is input to the chronograph reference signal generation circuit 1825 as a reset control signal SRC.
And the automatic stop counter 1829, the chronograph reference signal generating circuit 1825 and the automatic stop counter 18
29 is reset and the chronograph section 1200
Each chronograph hand of is reset (zeroed).

The present invention is not limited to the above embodiment,
Various modifications can be made without departing from the scope of the claims.

For example, in the above embodiment, the normal time section 1
Motor 1300 for driving 100 and chronograph section 12
Motors 1400 for driving 00
It has a base, but the motor that drives the chronograph is 2
There may be two or more units, for example, a motor for hour / minute chronograph and a motor for second / 1/10 second / 1/100 second chronograph.

Further, although the electronic timepiece having the analog display type chronograph function has been described as the time counting device, the present invention is not particularly limited to this, and the present invention can be applied to an analog display type multifunctional time measuring device. is there.

[0114]

As described above, according to the present invention, since the mechanical zero return mechanism of the chronograph is provided, the zero return can be performed instantly, and the time counting operation can be performed without delay. Becomes Further, since the chronograph display unit can have only one motor, the exclusive space can be reduced. In addition, the power consumption can be reduced and the timekeeping device can be driven by the power generation of only the power generation device, which eliminates the need for battery replacement work, reduces costs, and also complicates replacement work. It can be lost. Thus, the present invention is suitable for use as a multifunctional timekeeping device equipped with a hand.

[Brief description of drawings]

FIG. 1 is a schematic block configuration diagram showing an embodiment of an electronic timepiece that is a timing device of the invention.

FIG. 2 is a plan view showing an example of appearance of a completed body of the electronic timepiece shown in FIG.

FIG. 3 is a plan view showing a schematic configuration example when the movement of the electronic timepiece shown in FIG. 2 is viewed from the back side.

FIG. 4 is a perspective view showing an engaged state of a train wheel of a normal time portion in the movement of the electronic timepiece shown in FIG.

5 is a cross-sectional side view showing an engaged state of a train wheel for displaying the chronograph portion in the movement of the electronic timepiece shown in FIG. 2 for 1/10 seconds.

6 is a cross-sectional side view showing an engaged state of a train wheel for 1 second display of the chronograph portion in the movement of the electronic timepiece shown in FIG.

7 is a cross-sectional side view showing an engaged state of a train wheel for displaying the time and minutes of the chronograph portion in the movement of the electronic timepiece shown in FIG.

FIG. 8 is a plan view showing a schematic configuration example of a start / stop and reset (zero return) operation mechanism of the chronograph section of the electronic timepiece shown in FIG.

9 is a sectional side view showing a schematic configuration example of a main part of a start / stop and reset (zero-reset) operation mechanism of the chronograph part of FIG.

10 is a first plan view showing an operation example of the start / stop actuation mechanism of the chronograph section of FIG. 8. FIG.

11 is a second plan view showing an operation example of the start / stop operating mechanism of the chronograph section of FIG. 8. FIG.

12 is a third plan view showing an operation example of the start / stop operating mechanism of the chronograph section of FIG.

13 is a first perspective view showing an operation example of the safety mechanism of the chronograph section of FIG.

14 is a second perspective view showing an operation example of the safety mechanism of the chronograph section of FIG.

15 is a third perspective view showing an operation example of the safety mechanism of the chronograph section of FIG.

16 is a fourth perspective view showing an operation example of the safety mechanism of the chronograph section of FIG.

17 is a first plan view showing an operation example of the main mechanism of the reset operation mechanism of the chronograph section of FIG. 8. FIG.

FIG. 18 is a second plan view showing an operation example of the main mechanism of the reset operation mechanism of the chronograph section of FIG.

19 is a schematic perspective view showing an example of a power generator used in the electronic timepiece of FIG.

20 is a schematic block diagram showing a configuration example of a control circuit used in the electronic timepiece of FIG.

[Explanation of symbols]

1000 ... Electronic timepiece, 1100 ... Normal time section, 1200
... Chronograph section, 1300 ... First motor, 1400
... second motor, 1500 ... secondary power supply, 1600 ... power generator, 1700 ... movement, 1800 ... control circuit

Continued front page    (72) Inventor Kenichi Okuhara             Seiko, 3-3-3 Yamato, Suwa City, Nagano Prefecture             -In Epson Corporation (72) Inventor Hidehiro Akabane             Seiko, 3-3-3 Yamato, Suwa City, Nagano Prefecture             -In Epson Corporation F term (reference) 2F084 AA07 BB01 JJ05 JJ07 LL03                 2F085 AA04 BB01 DD07 DD14 EE06                       FF03 GG03

Claims (11)

[Claims] 1. A first motor for displaying a normal time, a second motor for displaying a chronograph, and a first motor and a second motor for converting mechanical energy into electric energy. A timekeeping device comprising: a power generation device that generates drive power for driving the motor; and a zeroing mechanism that mechanically performs zeroing of the chronograph. 2. The zeroing mechanism includes a zeroing lever for zeroing the chronograph and an actuating cam, which is arranged substantially at the center of the main body of the apparatus, for actuating the zeroing lever. The time measuring device according to claim 1, wherein the time measuring device comprises. 3. The timing device according to claim 1, further comprising a power supply device that supplies the drive power generated by the power generation device to the first and second motors. 4. The power supply device includes a first power supply unit and a second power supply unit that charge the drive power generated in the power generation device and supply the drive power to the first and second motors. The timekeeping device according to claim 3, wherein the power storage capacity of the second power supply unit is smaller than the power storage capacity of the first power supply unit. 5. The first power supply unit, wherein the power supply device charges drive power generated by the power generation device and supplies the drive power to the first and second motors, and the drive unit charged by the first power supply unit. A boosting circuit for boosting electric power; a boosting control circuit for controlling boosting of the boosting circuit; and a second power supply section for storing drive power boosted by the boosting circuit and supplying it to the first and second motors. The time measuring device according to claim 3, further comprising: 6. The timekeeping device according to claim 1, wherein the chronograph has two or more types of time unit display units. 7. The display unit of two or more types of time units,
The time measuring device according to claim 6, wherein the time measuring device is driven by one of the second motors. 8. The display unit of two or more types of time units,
The timekeeping device according to claim 6, further comprising a train wheel. 9. The time measuring device according to claim 1, wherein the power generating device includes a power generating rotor and a power generating coil. 10. The timekeeping device according to claim 9, wherein the power generation rotor is rotated by a rotary weight. 11. The time measuring device according to claim 1, wherein the time measuring device is a wristwatch.