JPS5822713B2 - calendar tokei - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic calendar clock that does not require manual date correction even at the end of a single month.

: A normal calendar clock has a member displaying the date for 31 days, and the display member for one day is advanced by the driving force from the clock.

For this reason, there is no problem at the end of the dog month, but at the end of the small month, the 31st day is displayed instead of the 1st day.
One rota had to be manually corrected.

In order to improve this, a movable date wheel auxiliary pawl or date plate auxiliary tooth is provided, and it can be controlled from the dog moon and small moon discrimination cam, and it can be used on the last night of the small month. A device that sends out two days' worth of date plates is also being considered.

However, these are complicated combinations of cams, levers, gears, etc., and have disadvantages such as increasing the number of parts, taking up a large amount of space, and being easy to cause failures. It was also unfavorable in terms of performance to receive twice the load as in the case of .

In view of this point, the present invention attempts to electrically achieve an automatic calendar clock with a calendar mechanism having almost the same structure as one without a mechanism for not correcting the end of the month.

In principle, when a detection means that works with the calendar detects the need for calendar correction, the signal that drives the electromechanical converter is switched from the clock signal to the calendar correction signal to make the correction, and once the correction is completed, the correction time is taken into account. The clock is reset to the correct time, and the drive signal is returned to the clock signal.

Although several applications are possible, two typical formats are listed below.

The first type is a clock in which the second hand advances by one step every second based on an IHz clock signal, and the calendar changes at 24:00 on the 30th of the small month.
When the day changes, the small moon detection means is activated and the clock signal is replaced with a calendar correction signal.

The calendar correction signal has the number of pulses corresponding to 24 hours and the time required for correction, and has a frequency higher than that of the clock signal.

Although it is desirable that the frequency of the calendar correction signal be high, it is limited by the synchronization of the electromechanical converter.

When the calendar correction signal starts working, the pointer rotates quickly and the 2
After moving forward by 4 hours and the corrected time until the official time is reached, switch back to the clock signal.

During this time, the calendar mechanism is advanced by one day and starts from the 31st to 1
It's changing day by day.

The second type is an electromechanical converter that can rotate in forward and reverse directions using an electric signal, and a calendar mechanism that sends the calendar only during forward feed. When the 31st day arrives, the small moon detection means is activated, and the pointer rapidly rotates to the position where the calendar can be advanced, and then rapidly rotates forward again to advance the calendar by 1 day and catch up with the regular time. , switch to the clock signal again.

The second type is easy to apply to a watch that also has a day of the week display.

Next, the drawings will be described in detail.

1 to 3 show the case where the first embodiment is applied to a crystal watch with day, day, and month displays.

Figure 1 is a block diagram showing the overall configuration, where (1) is a reference signal source including an oscillation circuit and a crystal oscillator, and (2) is an electrical counting means that receives the output from reference signal source 1 and converts it to the required frequency. After frequency division, IH for timing pulse P2O1 from one side
The positive pulse output of z is input to the switching means 4, and the output from the other side is 32
After the output P2O2 of Hz is used by the auxiliary signal generating means 3 to generate a negative pulse for reversing the clock by 3 hours and a positive pulse for advancing the clock by 3 hours and the deviation from the normal time for the calendar correction pulse P301. , into the switching means 4.

The output P401 of the switching means 4 drives the wheel train 6 via the electromechanical converter 5 which rotates forward or reverse depending on the pulse direction.

A pointer 7 is provided in a part of the wheel train 6.

The wheel train 6 further drives a date display mechanism 8 and a day of the week display mechanism 9.
and the month display mechanism 10 also moves.

The month display mechanism 10 is linked with a large month/small month discrimination means 11, and when the 31st day of a small month appears, it sends a signal to the switching means 4 from the normal operation clock pulse P2O1 to the calendar correction pulse. Switches to P301.

When the predetermined calendar correction pulse P301 is output, the switching means 4 switches again to the clock pulse P2O1.

FIG. 2 is a plan view of the calendar rotation when the 31st day arrives at 24 o'clock on the 30th day of a small month using a normal calendar mechanism.

15 is the main plate, 16 is the hour wheel, and 17 is the daily transmission, which is integrated with the daily transmission kana 18.

19 is a date wheel, and the date pawl 2 transmits only clockwise rotation.
0 and a day of the week transmission pin 21.

Reference numeral 22 denotes a batten, which has a moon plate feed pin 22a and is positioned by a Sunday side lever 23.

Reference numeral 24 denotes a daytime transmission, which is driven by a daytime transmission pin 21 to rotate a daytime star wheel 25 that is integrated with a day plate (not shown).

26 is a day jump system lever.

Reference numeral 27 is a dog moon/small moon discrimination cam, and a moon display board 28 is integrated therein.

Reference numeral 29 denotes a lunar jump control lever, one end of which is fixed to the main plate 15, the other end of which engages with the dog moon and small moon discrimination cam 27, and has a tip end 29a.
has a groove and does not support the passage of the moon plate feed pin 22a.

The shape of the contact point of the discrimination cam 27 with the lunar jump control lever 29 is a large recess when the month is displayed as a small month, and a small recess when the month is displayed as a large month. The jump control lever 29 will move closer to the center of the moon display board 28.

Reference numeral 30 denotes a switch spring, one end of which is insulated and fixed to the base plate 15, and the center portion is also covered with an insulating material 30a.

FIG. 3 shows a case where the normal calendar mechanism reaches the 31st at 24:00 on the 30th of a major month. By moving away from the center, the switch spring 30 is pushed up through the insulating material 30a and does not come into contact with the lunar plate feeding pin 21.

Next, the operation will be explained.

First, to describe the state of the moon that does not require correction of the date, the signal from the reference signal source 1 in FIG.
1 into the switching means 4.

During this time, the auxiliary signal generating means 3 also receives and counts signals from the electrical counting means, but the switching means 4 is OFF and does not work.

1) (The switching means 4 which received the clock signal P2O1 of z,
Hands 7 such as a second hand (not shown), a minute hand (not shown), and an hour hand (not shown) are moved through the electromechanical converter 5 and the wheel train 6.

The hour wheel 16 on which the hour hand is attached is shown in the daily transmission 1 in Fig. 3.
7. Daily dial kana 18, daily dial 20 via daily dial 19
From 211:30 to 24:00, the date plate 22 is set to 1.
Drive one tooth once a day.

The weekday signal pin 21 on the date wheel 19 is approximately 24 o'clock to 2 o'clock.
Towards half past o'clock, the day star wheel 25 is rotated via the day time transmission 24.

On the other hand, the conductive moon plate feed pin 22a, which is integrated with the date plate 22, is normally idle, but it is used from approximately 211:30 to 22:00 on the 31st.
Turn the discrimination cam 2T by one tooth toward 4 o'clock, and turn the month display plate 28.
send.

Since the switch spring 30 is separated from the lunar jump control lever 29 via the insulating material 30a, it does not come into contact with the lunar plate feed pin 22a.

On the 1st day of the small month, the discrimination cam 27 is rotated, and the lunar jump control lever 29 is no longer restrained, and the 9 switch spring 30 comes on the trajectory of the lunar plate feed pin 22a, but the lunar plate feed pin 2
2a passes through (c), so the switching means does not work.

Before long, on the 30th day of the small month, it was approximately 2 in Figure 2.
From 11:30 to 24:00, the date plate 22 is rotated by the date dial 20, and the 31st day appears.

The days of the week still remain as they were the day before.

At this time, the moon plate feed pin 22a comes into contact with the switch spring 30, and the switching means 4 in FIG.
Switching from 2O1 to calendar correction pulse p301,
The output P401 of the switching means first outputs a 3'2 Hz negative pulse for 3 hours.

The electromechanical converter 5 rapidly reverses the gear train 6 and the hour wheel 16
The hour hand attached to the machine is moved back to the 21 o'clock position.

Therefore, the date wheel 19 also rotates in reverse, but since the date pawl 20 is structured to transmit only forward rotation, the date dial 2
Leave it on the 31st without reversing step 2.

Next, the output P401 of the switching means outputs 32Hz positive pulses.
Calculate the time and the correction required for the correction time.

The hour hand attached to the hour wheel 16 quickly changes to 24 o'clock, and furthermore, to compensate for the delay time during the adjustment time, the hour hand changes to 0:11:3 on the 1st.
Advance to 7 seconds.

During this time, the date board 22 is moved again by the date dial 20 to display the 1st day.

When the counter of the auxiliary signal generating means 8 becomes zero, the switching means 4 is activated again to switch from the auxiliary signal generating means P301 to the clock pulse P2O1.

The clock starts moving again at IHz and finishes changing the day of the week by around 2:30 on the 1st.

In the first embodiment, the automatic calendar is not set for February, but if necessary, by increasing the function of the discriminating means 40 and the capacity of the auxiliary signal generating means 3, a complicated automatic calendar can be created.

For example, in the case of February, when the 30th is displayed, the calendar is automatically corrected for two days, which will be explained with reference to FIG. The second month plate feed pin 22b is provided at a position corresponding to the display of the 30th day, and the switch spring 30 is also controlled by the discrimination cam 21 to indicate the month of the dog, the month of the small month, and February (in this case, the 29th day). 3
be able to take the positions of stages 30B, 30C, and 30D;
The auxiliary signal generating means 3 is also provided with a counter for the two-day correction.

Regarding the operation, in the case of a large moon, the switch spring 30 is located at 30B, and the moon plate feeding pins 22a and 22b do not come into contact with the switch spring 30, as in the first embodiment.

In the case of a small moon, the switch spring 30 is located at 30C,
Only the first monthly plate feeding pin 22a installed on the thicker radius of the second monthly plate feeding pin 22b comes into contact when the 31st day is displayed, and correction for one day is performed.

In the case of February, the switch spring 30 is at the position 30D, and at 24:00 on the 30th, the switch spring 30 contacts the second monthly plate feed pin 22b to perform one day's correction.

When the correction is completed, the tenth month feed pin 22a comes into contact with the switch spring 30, and the correction for one day is made again.

In the above embodiment, the case of a wristwatch was described, but the effect is even more effective for a wall clock that is difficult to reach.

The calendar display board does not need to be an integral member, and may even be a leaf-type display, a cylindrical display, or even a tape-type display, which is often used in digital table clocks, etc. .

The frequency of the calendar correction signal is determined by the synchronization of the electromechanical converter, the output conditions of the frequency signal, the reduction in time during which the time display cannot be read, the feeling of movement of the hands, etc.

The electromechanical converter does not have to be a step motor with a 1-second movement; it can also be a synchro motor, etc.
In experiments with a step motor, 32 Hz gave good results under the above conditions.

There are several other possible methods of correcting only the date on a weekday date clock.

For example, when the daily claw is fed one-way as in the first embodiment,
If you use a forward/reverse mechanism such as a fixed pin to advance the date and day of the day, and rotate the clock forward to advance the day and day, and rotate it in the opposite direction to move the day back by one day, you will end up advancing only the day by one day.

Alternatively, rotate forward to advance the date and day of the week, and rotate in reverse to advance the date, and take into account the amount of reverse rotation when correcting the correction time, and rotate in reverse at the end of each small month to set only the date to the 1st. You can advance by a minute.

Another method is to make the date pawl fixed and use the difference in the length of the slope in the forward direction and return direction of the jump control lever to cause the date plate to move simultaneously on one side.

Various arrangements and configurations of the discriminating means can be considered.

You can separate the discrimination cam and the month display board, or detect the discrimination from the monthly movement control lever itself or the discrimination cam itself (c).

Furthermore, if a calendar for one year is stored in the circuit, only the cooperation between the month display board and the circuit is required, and the discrimination signal is not limited to the end of the month.

In addition, even with digital watches that are not double-hand watches, it is of course possible to adjust the end of the month for small months by temporarily moving the watch away from the time system and fast forwarding it using the calendar correction pulse.

In short, the gist of the present invention is that when a discrepancy occurs in the calendar display, the clock is changed from the clock signal.

Calendar adjustment is carried out by switching to a calendar correction signal and driving it alone.

Mechanically, it is almost the same as a clock that requires end-of-month correction for small months, and since it is processed in terms of circuitry, it is possible to create a highly reliable automatic calendar clock without increasing the thickness.

This idea can of course be used for the date adjustment mechanism for February in leap years and February in normal years, and it is a great advantage to use it in practical watches, eliminating the hassle of date adjustment.

At the beginning of the appearance of quartz wristwatches, quartz wristwatches with a second hand became mainstream, in line with the emergence of unprecedented high-precision wristwatches, but the power consumption required to drive the hands was large, so they were used as battery-powered watches. The operating life was also 1 to 2 years.

Now, if we reconsider the high precision of a watch from the perspective of long-term use without requiring maintenance, and construct a two-hand crystal wristwatch without the second hand, the operating life of a battery-powered watch can be increased several times. This makes it possible to extend the battery life and reduce the thickness of the battery, creating a unique touchless watch with a thin design and long operating life.

;Here, if the unit of movement of the minute hand is set to 3 degrees every 30 seconds, if the motor is fast-forwarded to move 3 hours at 960x fast-forward, the minute hand will move for about 12 seconds, 6 degrees every minute. in 1920
It takes about 3 seconds to fast forward twice as fast.

Therefore, if only the date plate or the day plate is fed using forward and reverse rotation for 3 hours, it will only take about 6 seconds to 24 seconds.

This can be achieved in 24 to 48 seconds by displaying only the date and fast-forwarding by 24 hours only to the end of small months.

In practice, it is acceptable even if it takes up to 10 times longer than this.

By applying the present invention to, for example, a thin □ type quartz wristwatch with a long battery life as described above, accurate time can be easily provided to a large number of people.

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention, FIG. 1 is a block diagram showing its configuration, FIG. 2 is a plan view showing the operating state on the 31st day of the small moon, and FIG. The figure is 2 on the 30th day of the dog month.
Plan view showing the display of the 31st at 4 o'clock, No. 4
The figure is a plan view showing the second embodiment of the present invention and showing the area around the switch. 1... Reference signal source, 2... Electric counting means, 201... Timing pulse, 3...
- Auxiliary signal generation means, 301... Calendar correction pulse, 4... Switching means, 5... Electromechanical converter, 6... Wheel train, 7 ..... Pointer, 8.. Date display mechanism, 9.. Day of the week display mechanism, 10.. Month display mechanism, 11..
・Dog moon, small moon discrimination mechanism, 19... daily clock,
20...Daily nail, 22...Daily board, 22
a...First moon plate feed pin, 22b...
・Second monthly board delivery, 24... Weekly delivery, 2
5...Day star wheel, 27...Large moon, small moon discrimination cam, 28...Moon display board, 29...
・・Monthly movement lever, 30・・・・・Switch spring,
30a...Insulating material.

Claims (1)

[Claims] 1. Electrical counting means, auxiliary signal generating means, switching hand. It consists of a calendar mechanism including a date display member for displaying 31 days, an electromechanical converter, a clock wheel train, a date display member for displaying 31 days, and a month determination means, and the signal of the auxiliary signal generation means is a normal hand feed higher frequency than the signal, and (number of modification days x 24
time required). At the end of the small month, the switching means is activated by the signal from the dog month and small month discriminating means which cooperate with the calendar mechanism, and an auxiliary signal is generated from the electrical counting means. The calendar clock is characterized in that the display of the calendar mechanism 1 is corrected via the clock train by switching the means to fast forward the electromechanical converter. 2. Consists of an electrical counting means, an auxiliary signal generating means, a switching means, an electromechanical converter, a clock train, a calendar mechanism including a date display member for displaying 31 days, and means for determining large and small months. , the electromechanical converter is rotatable in forward and reverse directions, and the calendar mechanism has a date display member configured to feed in one direction.The date display member can be continuously driven by reciprocating the time zone, and the auxiliary signal The generating means is configured to generate a reverse rotation signal, a forward rotation signal, and a correction signal during the correction time at a higher frequency than the normal pointer sending signal, and cooperates with the calendar mechanism at the end of the small month. The switching means is actuated by a signal from the large month and small month discrimination means to switch from the electrical counting means to the auxiliary signal generating means to fast forward the electromechanical converter in the reverse and forward directions. A calendar clock that is driven and corrects one display of a calendar mechanism through a clock train.