JPS6143265Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electronic watch that displays the time with an analog hand and displays the alarm setting time photoelectrically with a photoelectric display element such as a liquid crystal, EC, or light emitting diode.

These watches require an electromechanical holding mechanism to hold the time information such as hours and minutes displayed on the analog hand, and an electrical storage mechanism to store the alarm setting time. The problem lies in how to compare and detect this "hour" and "minute" time information with the alarm setting time.

One possible method would be to provide a mechanism to detect the position of the pointer, convert the detected position mechanically to electrically, and compare it with the alarm setting time, but this would complicate the detection mechanism and would not work in units of one minute. I can't even set an alarm.

Therefore, in the present invention, an electronic clock that displays time information of at least "hours" and "minutes" transmitted from an electromechanical holding mechanism with analog hands, and a photoelectric digital display of alarm setting time information held in an electrical storage mechanism. At least "hours" and "minutes"
A mechanism for electrically holding time information is added, a circuit detects a match between the time information of the electrical holding mechanism and the alarm setting time information, and an alarm alarm is generated by a match signal from the match detection circuit. We considered an electronic clock consisting of an alarm warning device that emits an alarm. And the holding time information of this electromechanical holding mechanism,
In order to match the electrically held time information, we devised an electronic timepiece that performs mechanical-electrical conversion on the time information of the electromechanical holding mechanism, extracts it as an electrical time signal, and transmits it to the electrically held mechanism.

This will be explained below with reference to the drawings.

Figure 1 shows one embodiment of an electronic watch according to the present invention.
This is an electronic clock that uses a pulse motor to display analog pointers and a liquid crystal photoelectric digital display.

Reference numeral 2 designates a reference signal generator for extracting a reference signal from a crystal resonator, 4 a frequency dividing circuit, 6 a drive section including a rotor converter, 8 a wheel train, and 10 an analog display section with a dial and hands.

The drive unit 6 and the wheel train 8 constitute an electromechanical holding mechanism.

9 is a mechanical-electrical converter that extracts an electrical time signal from the wheel train 8; 12 is an electrical holding mechanism that receives this electrical time signal and counts the time.

Reference numeral 14 denotes an alarm storage circuit, and the alarm time is set using an alarm operation member 16.

The alarm setting time in the alarm storage circuit 14 and the time in the electrical holding mechanism 12 are compared and detected by the coincidence detection circuit 22, and when they match, a detection signal is transmitted to the alarm warning device to notify an alarm warning. 23 is an external operation switch for stopping alarm notification.

The respective information of the electrical holding mechanism 12 and the alarm storage circuit 14 is transmitted to the decoder drive circuit 26 via the display switching gate 18 and displayed on the photoelectric display device 20. 25 is an external operation switch for changing the display.

Numeral 11 is a correction switch for correcting the holding time of the electromechanical holding mechanism, and 13 is a correction switch for setting the holding time of the electrical holding mechanism to a specific value.

FIGS. 2 and 3 are explanatory diagrams of the electromechanical converter 9 and the alarm comparison and detection section of the electronic timepiece shown in FIG. 1, respectively.

In this watch, for example, a signal extracted from a crystal oscillator as a reference signal source is frequency-divided by a frequency divider circuit 4 to 1
A Hz signal is generated, which rotates the rotor of the drive section 6, and the frequency of this signal is mechanically divided by the wheel train 8, and the display section 10 displays "hours" and "minutes."

At this time, as shown in FIG. 2, a cam 90 coaxial with the fourth wheel 80 is attached to the fourth wheel (which becomes the second hand wheel when the hands are attached) of the wheel train 8, and the fourth wheel 80 is The spring contact 91 is configured to sink into the notch 901 of the cam 90 each time it rotates once, and the spring contact 91 comes into contact with the contact 93.
In other words, a signal is input once per minute.

This input signal is sent as a "minute" time signal from a line 97 to the electrical holding mechanism via a flip-flop 94 for eliminating chattering and a flip-flop 95 for producing a thin pulse signal.

Reference numeral 92 is a contact grounded to the "H" level, and reference numeral 96 is a line for transmitting the frequency divided signal transmitted from the frequency dividing circuit 4.

And the "minute" transmitted via this line 97
The time signal is transmitted to the "minute" counting circuit 120 of the electrical holding mechanism 12 to hold "minute" time information, and is further transmitted to the "hour" counting circuit by the "hour" time signal from the "minute" counting circuit 120. 121, "Clock" counting circuit 1
The "am/pm" counting circuit 122 is activated by the "12 o'clock" time signal from 21, and holds "hour" time information and "am/pm" time information, respectively.

The holding time of this electrical holding mechanism is 80
Since it is based on the "minute" time signal taken out from , if the time held by the electromechanical holding mechanism 7 is initially matched, it will not deviate midway.

Therefore, the alarm "minute", alarm "hour", and alarm "am/pm" in the alarm memory circuit 14 are
each memory circuit 140, 141, 142
Then, the coincidence detection circuit 22 can detect a comparison between the set alarm time and the holding time of the electrical holding mechanism 12.

Figure 4 is an example of the display external view of this electronic watch.
The photoelectric display device 20 shows that the alarm is set for 12:30 a.m., but when the pointer reaches exactly 12:30 (and it's 12:30 a.m.), the alarm is activated. The time displayed on this pointer will not differ from the time at which the alarm is set at the time of alarm notification.

By the way, the coincidence of the electromechanical holding time and the electrical holding time begins when the hands of the watch are turned on.First, before turning on the hands of the watch, a fast forward signal is sent to the drive unit 6 by the correction switch 11, and the wheel train 8 Rotate quickly. (The fourth wheel and lower wheels of the wheel train 8 may be rotated directly by the correction switch 11.) At this time, the display changeover switch 25 electrically displays the time information of the holding mechanism on the photoelectric display device 20. To save you the hassle of this,
The display may be changed at the same time as the correction switch 11 is changed.

``Minutes'' displayed photoelectrically as gear train 8 was corrected.
When the digit reaches the digit, turn off correction switch 11 and set the minute hand and hour hand to the 12:00 position.

By inputting the setting switch 13, the holding time of the electrical holding mechanism is reset to 12:00 a.m. with a single touch.

This will give you an initial match.

If the battery runs out during the process, after inserting the battery,
The analog display is corrected with the correction switch 11 to set it to 12:00, the operation described above is performed, and then the predetermined time is set with the correction switch 11 again.

Since the correction switch 11 transmits a fast-forward signal to the drive unit 8 instead of the 1Hz signal, the fourth wheel & pinion 80 rotates quickly, and both the electromechanical holding mechanism and the electrical holding mechanism are held. This means that the time information is corrected at the same time.

In a system in which the correction switch 11 is used to independently correct seconds, hours, and minutes, as in a conventional step motor type analog pointer watch, the spring contact 91 is connected to the notch 901 of the cam 90.
When the hour and minute hands are at the 12:00 position, set the correction switch 11 to stop the seconds.
Since the electrical holding time is set to a predetermined time using the setting switch 13 and the electrical holding time is started at a predetermined time, a configuration that allows the setting switch 13 to adjust the electrical holding time is required.

FIG. 5 shows an example of such a case. Numbering is based on FIGS. 1 and 3.

This correction switch 11 is composed of a reuse switch 110 that can be rotated left and right at the first pull position. When the reuse switch 11 is pushed in, the contacts 111 and 116 come into contact and the AND gate 70 opens.
A 1 Hz signal is transmitted from the frequency dividing circuit 4 to the driving section 6. When the reuse switch 11 is pulled one step, the contacts 111 and 116 are separated, and the AND gate 70 is closed, and the signal to the drive section 6 is stopped.

On the other hand, in the 1st pull position, contact 114 and contact 1
15 makes contact, the AND gate 180 of the display switching gate 18 opens, and conversely, the AND gate 181 closes, and the time information of the electrical holding mechanism 12 is displayed on the photoelectric display device 20. In addition, the gear 11 attached to the reuse switch 110 at this one-step pulled position
2 meshes with the transmission wheel 113, and this transmission wheel 113
Since the minute hand wheel of the wheel train 8 is engaged with the minute hand wheel, the analog pointer display time can be adjusted by rotating the reuse switch 110.

On the other hand, the setting switch 13 is the select switch 1.
30 and a set switch 131, and the select switch 130 controls the "minute" and "hour" counting circuits 120, 1.
21 to be corrected, and use the set switch 131 to make the correction at a predetermined time.
In short, in the example shown in Fig. 5, since the hour hand and minute hand of the analog pointer display are configured to be adjusted independently (in other words, the electromechanical holding mechanism 7 is configured to be adjusted independently), the electric holding mechanism is used. 1
2 is configured so that it can be adjusted independently by the setting switch 13, and after setting the respective held time information to a predetermined time and making them match, the reuse switch 110 is pushed to the home position to start the clock. It's summery.

In any case, a configuration is adopted in which the holding time information of the electromechanical holding mechanism 7 and the electrical holding mechanism 12 are matched by the method described above, and the holding time of the electrical holding mechanism 12 and the alarm time of the alarm storage circuit 14 are matched. The electronic clock according to the present invention, which issues alarms by comparing and detecting alarms, makes it easy to compare and detect alarms.

By providing an electrical holding mechanism, it can be set for 24 hours.

Alarms can be set in 1 minute increments.

It has the following effects and is practically effective.

Please note that what is shown in the example is just one example, and the alarm setting function can be diversified (temporary,
Incorporating or replacing functions that are already known, such as daily, multi-alarm, date, hours, minutes, alarm, etc.), simplifying switches, and diversifying switches (push buttons, slide switches), etc. The present invention can be applied to an electronic watch configured in this manner.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the electronic timepiece according to the present invention, FIGS. 2 and 3 are partial explanatory views of FIG. 1, and FIG. 4 is an external view of the display of the electronic timepiece shown in FIG. 1.
FIG. 5 is a block circuit diagram of a modification of the electronic timepiece based on FIG. 1 according to the present invention. 7... Electromechanical holding mechanism, 12... Electrical holding mechanism, 14... Alarm storage circuit, 22... Coincidence detection circuit, 24... Alarm warning device, 9...
Mechanical-electrical converter.

Claims (1)

[Scope of utility model registration request] In an electronic watch that displays time information of at least "hours" and "minutes" transmitted from an electromechanical holding mechanism on analog hands, and displays alarm setting time information held in an alarm storage circuit as a photoelectric digital display, A correction switch for the mechanical holding mechanism, a mechanical-electrical converter for extracting an electrical signal from the electromechanical holding mechanism, and a setting switch separate from the correction switch, and an electrical holding mechanism that allows a setting switch to hold the same "hour" and "minute" time information as the time information on the analog hand display; the time information of the electrical holding mechanism; and the alarm. A coincidence detection circuit that detects coincidence of set time information, and an alarm warning device that issues an alarm warning based on a coincidence signal from the coincidence detection circuit,
An electronic timepiece characterized in that the alarm warning device notifies the match between time information in minutes and the alarm setting time information.