JPH0738879Y2 - Analog clock - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to time adjustment in an analog timepiece.

[0002]

2. Description of the Related Art Many digital timepieces have a time adjustment mechanism that separates the hour and minute digits and prohibits carry to the hour digit when adjusting the time of the minute digit so that the time can be adjusted quickly and accurately. Has been adopted. However, in an analog timepiece, fast-forwarding is performed according to the operation time of the correction switch to adjust to a rough time, and then the time is incremented by 1 to adjust the time. Also, JP-A-55-16608
Japanese Patent Laid-Open No. 5 (1994) proposes a correction method that advances a plurality of steps. Furthermore, some motors that drive the hour and minute hands with different motors incorporate a mechanism that corrects the minute hand and hour hand separately, but since the position of the hour hand is linked to the position of the minute hand, When crossing the hour position, the hour hand also carried up to the next time.

[0003]

However, the above-described conventional method for adjusting the time by fast-forwarding the analog timepiece is troublesome because it requires too fast-forwarding or it is necessary to calculate the position to be corrected next in advance. In addition, in the case of correcting the hour hand and minute hand separately, in the case of a timepiece that does not have a forward / reverse correction mode in particular, when the time was adjusted from the hour hand, when the minute hand correction was over, the hour hand had to be adjusted again. . The present invention is, in intended to correct the hour and minute hands separately, provide a analog clock be over the minute hand modifications hour hand which was set to ensure time setting can only be modified once again minute hand position without carry The purpose is to do.

[0004]

In order to achieve the above object, the present invention provides an actuator in which the hour hand and the minute hand are driven by separate motors.
In the analog clock, the hour hand motor is a forward / reverse motor,
By counting the signal from the switching circuit for switching and outputting correction signals and timing signals to store the minute hand position by the time correction operation, when the count value becomes the value of the hour position during partial modification
Is a pointer position counter that outputs a signal that instructs reverse rotation correction, and this reverse rotation correction signal and operation from the hour hand correction switch.
Correction when moving the hour hand by unit time in response to signal
And a circuit are provided.

[0005]

The single hand operation of the time adjustment switch drives the minute hand until the second digit of the pointer position counter reaches zero, and when the second digit of the pointer position counter is pressed continuously for more than a fixed time, 0 or 5, that is, fast-forwarding until it reaches the value of the hour display index position of a general clock, and when it is desired to correct only the minute hand, the pointer position counter has reached the hour position value during minute hand correction. Is detected,
A reverse rotation correction signal for a unit time is output. Therefore, the hour hand
Is moved backward for one hour and does not carry the hour digits.
It will be.

[0006]

1 is a circuit diagram of an analog timepiece according to an embodiment of the present invention. Reference numeral 2 is a mode switch which, when turned on, enters a time adjustment mode. Reference numeral 4 is a minute correction switch, and 6 is an hour correction switch. Reference numeral 10 is a reference signal generating circuit, which is composed of an oscillator circuit 12, a first frequency dividing circuit 14 and a second frequency dividing circuit 16, and the first frequency dividing circuit 14 is provided.
Outputs a high-speed correction signal from the second frequency divider circuit 16
A pulse is output once every 10 seconds as a timing signal.

Reference numeral 20 denotes a switching circuit, which is the second frequency dividing circuit 1
AND gate 22 for inverting and inputting the clock signal from 6 and the operation signal from mode switch 2 and this mode switch 2
AND gate 2 for inputting the operation signal from the input signal and the correction signal output from the OR gate 72 of the minute correction circuit 60 described later.
OR gate 2 which inputs the output of 4 and both AND gates
6 and an AND gate 28 for inputting this output to one terminal and for inputting a reverse rotation signal output from the Q output terminal of the FF 104 of the pointer position counter 90 described later to the other inverting terminal. In response to, the timer signal and the correction signal are switched and output, and the minute correction signal is blocked while the hour hand is performing the reverse correction movement.

A minute display circuit 30 includes a waveform shaping circuit 32 for inputting a signal from the switching circuit, a motor drive circuit 34 for driving the motor by this output, a motor 36, and a motor 36 for damping the rotation of the motor to an appropriate angle. And a train wheel 38 for moving the minute hand by the
The minute hand is stepped once with respect to the pulse output. Further, 40 is a time display circuit having the same structure and capable of rotating in the forward and reverse directions, and a flip-flop (hereinafter referred to as FF) 1 of a pointer position counter 90 described later.
The reverse rotation signal from 04 is input.

Reference numeral 90 denotes a pointer position counter, which includes a second counter 92 for counting the output signal from the switching circuit 20, a minute counter 96 for counting the carry signal, a carry detection circuit 100 for detecting the carry, and a second counter. A 0 detection circuit 94 that generates an output when the value of 92 is zero and a 0 and 5 detection circuit that outputs a detection signal when the ones digit of the minute hand position value is 0 or 5 by the value of the minute counter 96 98 and the detection signal of the carry detection circuit 100 are input to the clock terminal, and the Q output of the FF 78 in the minute correction circuit 60, which will be described later, is input to the data terminal. The FF 102 is input to the clock terminal and H is input to the data terminal. It is composed of an FF 104 for inputting a level signal, and stores the minute hand position, and depending on the value, it sets the value of the hour display index position when the second digit is zero and the minute hand is the dial. When the time correction value is reached, the reverse rotation signal is output to the waveform shaping circuit 42 of the hour display circuit 40 and also to the time correction circuit 120, which will be described later. Then at high speed 3
0 pulse is output and 30 degrees, that is, the hour hand is reversed for one hour.

Reference numeral 60 denotes a minute correction circuit, which is an AND gate 6 for inputting signals of the mode switch 2 and the minute correction switch 4.
2 and a one-shot multi (hereinafter referred to as OSM) 64 that outputs a single pulse by this output, an FF 66 that inputs this output to the clock terminal and an H level signal to the data terminal, and this Q output to the data terminal The FF 68 for inputting a high speed correction signal to the clock terminal, the AND output 70 for inputting this Q output and the high speed correction signal, and the detection signal from the 0 detection circuit 94 of the pointer position counter 90 are input to the clock terminal for data. Input the H level signal to the terminal, output the Q output signal to the reset terminal of the FF66, and input the output signal of the inverted Q terminal of the FF66 to the reset terminal. The timer 76 for outputting and the FF 7 for inputting this signal to the clock terminal and inputting the signal of H repel to the data terminal And this Q output is inputted and the Q output signal from the FF 88 described later is inputted to the other inverting input terminal, and the AND gate 84 and this output are inputted to the data terminal and a high speed correction signal is inputted to the clock terminal. FF80 and AND gate 82 for inputting this Q output and high speed correction signal
FF88 which inputs the detection signal from the 0, 5 detection circuit 98 of the pointer position counter 90 to the clock terminal and the Q output of the FF78 to the data terminal, and the FF88 which starts the operation by this Q output and after a fixed time, the FF88. Inputting the outputs of the FF86 and the AND gate 82 and the output of the AND gate 70 to the reset terminal, and outputting as the correction signal of the OR gate 72 and the Q output of the FF78 are input to the clock terminal and the H level signal to the data terminal. FF79 for inputting this, this inverted Q output and the Q output signal of FF88
The AND gate 87 for outputting to the reset terminal of 78 and the inverter 66 for inverting the output of the AND gate 62 and outputting to the reset terminal of the FF 79, the second counter 92 by the short pressing operation of the minute correction switch. The minute hand correction of 1 minute or less than 1 minute is performed until 0 becomes zero, and when continuously pressed for a fixed time or longer, the operation of correcting the minute hand is repeated until the detection signal of the 0, 5 detection circuit 98 is generated. That is, it moves for each hour display index position of the dial.

Reference numeral 120 denotes a time correction circuit, which includes an AND gate 122 for inputting signals of the mode switch 2 and the time correction switch 6, an OSM 124 for inputting this output, this output, and a Q output signal of the FF 104 in the pointer position counter 90. An OR gate 126 for inputting an output signal of an OSM 152, which will be described later, and FF 128 and FF for inputting this output to a clock terminal and an H level signal to a data terminal.
The OR output 158 for inputting the Q output of 104 and the Q output of the FF 146, which will be described later, and this signal are input to one input terminal and an inverting terminal, respectively, and the correction signal Φ2 from the first frequency dividing circuit 14 is input to the other input terminal. And AND gates 162 and 160 for inputting a faster correction signal Φ1, an OR gate 164 for inputting outputs of both AND gates, an FF 130 for inputting this output to a clock terminal and an Q output of FF 128 for a data terminal, and Q output and OR gate 164
AND gate 132 for inputting the correction signal output from
And a counter 136 which outputs this output as an hour hand correction signal and is input to the clock terminal through the inverter 134, and a single pulse is fed to the FF 12 by this carry signal.
8, OSM output to the reset terminal of the FFs 104 and 102 in the counter 136 and the pointer position counter 90
A timer 144 which starts operation by 138 and the OSM 124 and generates an output after a fixed time, and an FF 14 which inputs this output to a clock terminal and inputs an H level to a data terminal.
6 and the FF 156 which inputs the Q output to the clock terminal and the H level signal to the data terminal and the FF 140 which inputs the output of the OSM 138 to the clock terminal and inputs the H level to the data terminal and the Q output to operate. Timer 150 that outputs after a fixed time after starting, and this output and FF1
An AND gate 148 which inputs the Q output of 56, an OSM 152 which outputs a single pulse by this output, an inverter 142 which inverts the output of the AND gate 122 and outputs it to the reset terminal of the timer 144 and FF 156, and this output and O
Input the output of SM152, timer 150, FF140
OR gate 154 and FF15 which output to the reset terminal of
It is composed of an inverted Q output of 6 and an AND gate 166 which inputs the output of the OSM 138, and outputs a hour hand correction signal of 30 pulses for 1 hour by a short push , and this operation is performed when pushed for a certain time or more. By repeating the correction for one hour, the hour hand correction signal for one hour is also output by the reverse rotation signal from the pointer position counter 90.

Numeral 50 is a gate circuit, and a counter 52 for inputting an output signal from the switching circuit 20 to a clock terminal, an OSM 54 for outputting a single pulse to the reset terminal of the counter 52 by this carry signal, and this output and the time correction circuit. The OR gate 56 outputs the correction signal from the AND gate 132 of 120 and outputs it to the waveform shaping circuit 42 of the hour display circuit 40. In addition to outputting the signal for operating, the correction signal from the time correction circuit is output to the time display circuit.

Next, the operation of the analog timepiece of the present invention having the above configuration will be described. 1 from the second frequency dividing circuit 16
A pulse signal having a cycle of 0 seconds is output, and this signal is output to the minute display circuit 30 to step the minute hand one by one, and the seconds force counter of the pointer position counter 90 also steps. This second counter outputs a carry signal when counting 6 pulses of the clock signal and advances the minute counter 96 to store the position of the minute hand. The second counter 92 returns to zero when it outputs a carry signal, and the minute counter 96 also outputs a carry signal when it counts 60 and returns to zero. This time signal is also input to the gate circuit 50,
When the counter 52 counts 12 pulses for 2 minutes, it outputs a carry signal and is reset by the OSM 54. On the other hand, the single pulse from the OSM 54 causes the hour hand to step once. The time is displayed by the above operation.

When the time is adjusted here, the mode switch 2 is turned on to enter the correction mode. Then, the correction switch corresponding to the desired pointer is turned on. For example, to correct the hour, set the hour correction switch 6 to 1.
OSM1 via AND gate 122 when turned on once
A single pulse is generated from 24, and the Q output of the FF 128 is set to H level. As a result, the FF 130 becomes H level at the rising edge of the correction signal of Φ2, the AND gate 132 is opened, and the correction signal is output. This correction signal is OR gate 5
It is output to the hour display circuit 40 via 6, and the hour hand is moved and corrected by forward rotation. On the other hand, this correction signal is input to the counter 136 via the inverter 134, and when a fixed number of 30 pulses, that is, a pulse of a moving amount for one hour is counted, a single pulse is output from the OSM 138 by the carry signal and the counter 136 and the FF 128 are output. To reset the output of the correction signal.

When the time correction switch 6 is turned on for a certain period of time or more, the above operation is performed, the Q output of the FF 140 becomes H level due to the output of the OSM 138 and the AND gate 148 is delayed by the timer 150, and then the timer 144 is opened. The time-up signal is output from FF14
Q output of FF156 becomes
The output is also set to H level, a single pulse is generated from the OSM 152, the hour hand moves again for 1 hour, and the timer 150 and the FF 140 are reset by this single pulse. At this time, since the AND gate 148 has already been opened by the FF 146, the same operation is performed again after the timer is delayed by the single pulse from the OSM 138.
When the Q output of the FF 146 is at the H level, the output of the OR gate 158 is at the H level, and the faster correction signal Φ
One signal is input to the FF 130 and the AND gate 132.

When the time correction switch 6 is turned off, the timers 144, 150 and the FF 15 are fed via the inverter 142.
OSM13 after 6,140 is reset and corrected by a predetermined amount
The FF 146 is reset by 8, and the operation of correcting the hour hand ends. Therefore, if the hour correction switch 6 is pressed shortly, the hour hand moves for one hour, and if it is pressed for a certain time or longer, the correction movement for one hour is continuously repeated until it is turned off.

Next, when correcting the minute unit, the minute correction switch 4 is turned on. First, when the correction switch 4 is pressed for a short time, the AND gate 62 outputs an H level signal and the timer 76 and FF 79 are released from reset. However, due to a short press, this signal immediately becomes L level and is reset again. State is retained. On the other hand, the signal from the AND gate 62 causes the Q output of the FF 66 to go to the H level, and the AND gate 70 is opened at the rising edge of the correction signal so that the correction signal is transmitted through the OR gate 72, the AND gate 24, and the OR gate 26. 30, the minute hand and the hour hand are interlocked with each other and are moved fast-forwarding in the same manner as in the time counting operation. on the other hand,
This correction signal is sent to the second counter 92 of the pointer position counter 90.
When the value of the second counter 92 becomes zero, an H level detection signal is output and the inverted Q output of the FF 66 has already been reset because the inverted Q output is L level.
Reset the FF66 by setting the Q output of 4 to the H level,
As a result, the FF 74 is reset, the AND gate 70 is closed, and the output of the correction signal is stopped.

Next, when the minute correction switch 4 is turned on for a predetermined time or longer, the reset of the timer 76 and the FF 79 is released, the timer 76 starts operating by the OSM 64, and the operation at the time of the above short press is performed. The timer 76 outputs a time-up signal, the Q output of the FF 78 becomes H level, the Q output of the FF 80 is set to H level at the rising edge of the correction signal through the AND gate 84, the AND gate 82 is opened, and the correction signal is transmitted to the OR gate 72. ,
The minute hand and the hour hand are corrected and moved via the AND gate 24 and the OR gate 26 in the same manner as above. At this time, even if the 0 detection circuit 94 outputs a detection signal, the FF 74 is already in the reset state and is not affected, but 0 of the minute counter 96,
5 When the detection signal is output from the detection circuit 98, the Q output of the FF 88 becomes H level and the AND gate 84 is closed to stop the output of the correction signal. However, this signal causes FF
Since the Q output of 86 becomes H level and the FF 88 is reset, the correction signal is output again.

Here, when the minute hand comes to the hour position, the minute counter outputs a carry signal and becomes zero. This makes F
Since the Q output of F102 becomes H level and the Q output of FF104 becomes H level, the AND gate 28 is closed to stop the correction signal output of the minute hand, and the hour display circuit receives the reverse movement signal, and the OR gate 126 is used. FF12
The Q output of 8 becomes H level, and the correction signal for one hour is output to the OR gate 56 as described above. This causes the hour hand to move back by 1 hour. When the signal for one hour is output, the OSM 138 resets the FFs 104 and 102, and the minute hand performs the above correction operation again. When the minute correction switch is turned off, the timer 76 and the FF 79 are reset to open the AND gate 87, the FF 78 is reset by the detection signal of the 0, 5 detection circuit 98, the AND gate 84 is closed, and the output of the correction signal is stopped.

The AND gate 2 in the switching circuit 20
8 is unnecessary if the reverse rotation for one hour is completed before the counter 52 counts up. Also,
Although it is configured that the hour hand carry is not prohibited by short-pressing the minute correction switch, the output of OSM64 is latched and F
By delaying the Q output of F74 to reset this latch and inputting this latch signal and the Q output of FF78 to the data input terminal of FF102, carry can be prohibited even when the button is pressed for a short time .

[0021]

According to the present invention, the pointer position counter 90
More because when the minute hand of the modified banned carry to when digits hour, so so that the minute hand of modifications can be performed completely independently, also be the position correction in conjunction also the hour when the minute hand correction, also the hour hand There is no longer a carry,
This has the effect that it is not necessary to adjust the hour hand again, and the time correction operation can be performed easily.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an analog timepiece according to an embodiment of the present invention.

[Explanation of symbols]

 10 reference signal generation circuit 20 switching circuit 30 minute display circuit 40 hour display circuit 50 gate circuit 60 minute correction circuit 90 pointer position counter 120 hour correction circuit

Claims (1)

[Scope of utility model registration request] 1. A minute correction circuit for driving a minute hand and an hour hand by separate motors in response to a time signal from a reference signal generation circuit for outputting a reference signal, and for outputting a correction signal for the minute hand in response to a minute correction switch, a correction circuit when outputting hour hand correction signal of unit time in response to the time of modification switch, when
In an analog timepiece having a switching circuit that switches between the timekeeping signal and the signal for correcting the minute hand in response to a time correction operation, in the analog timepiece, the motor that drives the hour hand is a motor that can rotate in the forward and reverse directions, and the signal from the switching circuit is set. The motor that drives the hour hand by counting and storing the minute hand position and detecting the arrival at the hour position based on this count value and reversing the hour hand when the detection is output during the minute correction An analog timepiece characterized by further comprising a pointer position counter for outputting to a time correction circuit, the time correction circuit outputting a correction signal for a single hour in response to the reverse signal and the time correction switch. .