JPS6134635B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to an alarm control device for a pointer display type electronic timepiece. In recent years, pointer display electronic wristwatches and digital display electronic wristwatches that are equipped with a crystal oscillation circuit as a time standard are rapidly becoming popular. However, in the case of digital display electronic watches,
Compared to the products that are already equipped with additional functions such as timers or alarms,
In the case of pointer display type electronic wristwatches, the current situation is that no product with the above-mentioned additional functions has been realized. The biggest reason for this is that in the case of a digital display type electronic wristwatch, there is no need to provide any movable parts other than the external operation switch member, whereas in the case of a pointer display type electronic wristwatch, there is no need to provide any movable parts. The problem is that it still requires many movable members and the structure is becoming more complex. That is, if the watch is equipped with additional functions such as a timer or alarm, the status of the additional functions can be changed from outside the watch, and the status of the additional functions can be monitored.
etc. are essential for controlling additional functions, and it is clear that an external operating member for this purpose is required. However, as mentioned above, pointer display type electronic wristwatches have a complicated structure, and it is extremely difficult to add more external operation switches and the like. SUMMARY OF THE INVENTION An object of the present invention is to provide a pointer display type electronic timepiece that can perform necessary control over additional functions by simply providing a minimum number of external operation switches. More specifically, the present invention provides that when a first external operation switch mechanism configured to be linked to a reuse for setting hands or setting an alarm time is set to a predetermined state, a second external operation switch mechanism is activated. The present invention relates to an alarm control device for a pointer display type electronic timepiece, which is configured so that a control signal for switching the driving state of a sounding body of an alarm device can be inputted by a member. Hereinafter, specific examples of the present invention will be explained according to the drawings. FIG. 1 is a plan view showing the external appearance of a pointer display type electronic timepiece with an alarm according to an embodiment of the present invention. In addition to the member 4, it has a reference hand 5 that displays the alarm setting time. Further, as external operating members, in addition to the rear cover 6 which can be set to three positions in the axial direction as described later, a push button type alarm control switch S is provided. The watch of this example is in a normal driving state when the rose 6 is in the normal position 6a, which is pushed in the most, and when the rose 6 is in the 1st-pull position 6b, the rose 6 can be rotated in either the left or right direction. By doing so, either the date or the alarm setting time can be selectively corrected. Furthermore, when the reuse 6 is in the two-step pulled position 6c, the hands can be set, and in this state, the frequency dividing circuit 21 described later is activated.
A part of the memory is in a reset state. Next, FIG. 2 is a plan view showing the reset switch mechanism of the timepiece of this embodiment, and this figure shows the state when the crown 6 is in the normal position 6a. That is, a winding stem 7 is fixed to the winding stem 7, and the position at which the winding sleeve 6 is pulled out is regulated by a mandrel 8 that engages with the winding stem 7 and a back presser (not shown). Furthermore, a reset lever 9 is engaged with the mandarin duck 8,
The reset lever 9 and the terminal pins 10, 11 constitute a reset switch mechanism Sr that is linked to the pulled-out position of the lid 6. That is, the reset switch mechanism Sr is configured to be able to distinguish and detect three axial positions of the crown 6 from each other, as will be described later. Note that the date adjustment mechanism, alarm setting time adjustment mechanism, and hand setting mechanism constructed by a small railway car, etc., are omitted for the sake of simplicity. It is a fourth wheel designed to be hung. Of the terminal pins 10 and 11, 10 is provided as a reset switch terminal, and 11 is provided as an auxiliary switch terminal corresponding to the reset lever 9. In addition, the switch mechanism Sr for identifying the drawer position of Reuse 6
Regarding this, it is also possible to use a method to electrically identify the drawer position of the reuse 6 using an electronic circuit such as a flip-flop, but when an electronic circuit is used, the initial settings of the circuit can be set by the user when replacing the battery, etc. It becomes a nuisance for people. In contrast, in this embodiment, the reset switch terminal 11
In addition, by simply adding an auxiliary switch terminal 10, a switch for identifying the draw-out position of the reuse 6 can be constructed, and furthermore, it is possible to construct a switch that does not require special initial settings when replacing batteries. Next, FIG. 3 is a block diagram showing the circuit configuration of the timepiece of this embodiment, in which 20 is a crystal oscillation circuit, 21 is a frequency dividing circuit, and a group of predetermined output signals from the frequency dividing circuit 21 is used to control the hand movement. It is input to the state control circuit 22. Further, the pulse signal selected by the hand movement state control circuit 22 has its pulse width appropriately converted by the waveform conversion circuit 23 and is then inputted to the motor drive circuit 24 to drive the step motor 25. It is configured. On the other hand, the terminal pin 10 constituting the reset switch mechanism Sr shown in FIG. 11 is the other input side of the NOR circuit 26 and the AND circuit 29
is connected to one input side of the Also mentioned above
The output side of the NOR circuit 26 is connected to the AND circuits 28 and 43.
and one input side of the OR circuit 44, and the output side of the AND circuit 28 is connected to the buzzer drive control shift register 33.
That is, the above AND circuits 27, 28, 29 are
It is provided as a switch input control circuit for switching and controlling the input function of the alarm control switch S according to the state of the reset switch mechanism Sr. Further, a predetermined output side of the shift register 33 is connected to a buzzer drive circuit 41.
FIG. 4 is a circuit diagram showing one embodiment of the connection relationship. Further, the alarm control switch S includes the differentiation circuit 30, the AND control 43, and the OR circuit 4.
The output side of the differential circuit 36 is connected to the other input side of the AND circuits 27 to 29. The wheel train drive type reference switch M is an AND circuit 37 of the inverter 34 and the alarm control signal forming circuit 36.
is connected to one input side of the Next, the operation of the alarm device in the watch of this embodiment will be explained. However, the circuits shown in FIGS. 3 and 4 operate with positive logic,
If it is simply written as [H], it is logical]
If it is simply written as [L], it means that it is logically at the [L] level. First, the operation of the alarm device in the state where the reuse 6 shown in FIGS. 1 and 2 is pulled out to the two-step pulled position 6c will be described. In this state, the reset lever 9 constituting the reset switch mechanism Sr is restricted to a position where it contacts only the terminal pin 10 of the terminal pins 10 and 11, and a part of the frequency dividing circuit 21 is reset. In addition, the AND control 27 is maintained in the ON state. Therefore, the second hand 3 mentioned above is on the dial.
When the second hand 6 is pulled out to the two-step pull position 6c at the moment when the 12 o'clock mark is indicated, the second hand 3 will stop showing zero seconds. When the above-mentioned alarm control switch S is closed in this state, one pulse signal formed by the differentiating circuit 30 is
It is supplied via the AND circuit 27 to the reset terminal R of the second counter 31, which is a sexagesimal counter, and resets the second counter 31 to zero. The second counter 31 is supplied with a 1Hz output signal from the frequency dividing circuit 21 during normal operation,
The differential circuit 32 is configured to generate one reference pulse signal at the moment the contents of the second counter 31 return from 59 to 0. Therefore, when the seconds counter 31 is reset to zero by the operation described above when setting the hands of the watch for the first time, the contents indicated by the second hand 3 and the contents counted by the seconds counter 31 are synchronized with each other. Then, when the reuse 6 is pushed back from the two-stage pull-out position 6c in response to a time signal or the like, from then on, both of the above-mentioned parts continue to be driven while maintaining a mutually synchronized state. Therefore, during normal driving, one reference pulse signal is generated by the differentiating circuit 32 each time the second hand 3 indicates the 12 o'clock mark position (ie, zero seconds) on the dial. Next, the operation when the alarm set time indicated by the guide hand 5 has arrived will be explained. Note that when the watch is normally carried, the reuse 6 is in the normal position 6a, and therefore only 29 of the AND circuits 27 to 29 are in the ON state. Also, as a guideline switch M
However, when the inverter 34 is not yet closed (that is, not turned on), the output side of the inverter 34 is at the [H] level, and therefore the FF 35 is in the set state. Under the above conditions, the alarm set time has arrived and the guide switch M is closed.
When the ON state is reached, the AND circuit 35 detects a match between the Q output of the FF 35 and the ON state output of the reference switch M, and the output side of the AND circuit 37 becomes [H] level, and the AND circuit 38 becomes the ON state. becomes. On the other hand, as mentioned above, the second hand 3 is pointing to 12 on the dial.
One reference pulse signal is generated by the differentiating circuit 32 at each instant indicating the hour mark position, and when the AND circuit 38 is in the ON state as described above, the reference pulse signal is generated by the AND circuit 38.
The signal is input to the set terminal S of the FF 39 via the FF39. As a result, the FF 39 enters the set state, the output side of the OR circuit 40 becomes [H] level, and the buzzer 42 starts to be driven by the buzzer drive circuit 41. When the FF 39 is brought into the set state, the AND circuits 46 and 49 are turned on, and the output side of the inverter 48 is also brought to the [L] level, so that the timer circuit 50 is released from the reset state. As a result, the 1Hz output signal from the frequency divider circuit 21 is supplied to the timer circuit 50 via the AND circuit 49, and when a predetermined number of pulse signals are formed by the timer circuit 50, (That is, after a predetermined period of time has elapsed), the output side T ₀ of the timer circuit 50 becomes the [H] level. Therefore, the FFs 35 and 39 are returned to the reset state again, and the driving of the buzzer 42 is automatically stopped. Also, as mentioned above, the buzzer 4
Even before a predetermined period of time has elapsed since the buzzer 2 started being driven, the buzzer 42 can be stopped from ringing by closing the alarm control switch S mentioned above. That is, when the alarm control switch S is closed, the pulse signal formed by the differentiating circuit 30 is
Through AND circuits 29, 46 and OR circuit 47,
It is clear that driving of the buzzer 42 is stopped in order to reverse the FFs 35 and 39 to the reset state. Further, when further time passes after the driving of the buzzer 42 is stopped by any of the above operations, the reference switch M opens again and returns to the OFF state, and as a result, the output side of the inverter 34 goes to the [H] level. Then, the FF 35 is also reversed to the set state, and the alarm circuit returns to its initial normal state. Here, the operation for arbitrarily controlling the driving state of the buzzer 42 from outside the timepiece will be described. When the sleeve 6 shown in FIGS. 1 and 2 is pulled out to the first pull position 6b, the reset lever 9 constituting the reset switch mechanism Sr is activated.
is regulated to an intermediate position where it is not in contact with either terminal pin 10 or 11, and NOR circuit 26
When the output side of becomes [H] level, AND
Circuits 28 and 43 are turned on. When the alarm control switch S is closed in this state, one pulse signal formed by the differentiating circuit 30 will be input to the buzzer drive control shift register 33, and therefore the alarm control switch S will be input to the buzzer drive control shift register 33.
Each time the shift register 33 is closed, the state of the shift register 33 is cyclically shifted by one step.
In addition, in FIG. 4, the buzzer drive circuit 41 is
AND circuit 51 INH circuit 52, N type FET 53, current limiting resistor 54, 55, P type FET 56, coil 57
and are connected as shown in the figure. Further, one input side of the AND circuit 51 is configured to receive a 2048 Hz output signal from the frequency dividing circuit 21. First, Figure 3,
As shown in FIG. 4, the shift register 3
3 is

When in the state of [Equation], the INH circuit 52 and the P-type FET 56 are in the ON state, and both ends of the current-limiting resistor 55 are shorted by the P-type FET 56. Therefore, in this state, when the output side of the OR circuit 40 becomes [H] level and the buzzer 42 is driven, only the current limiting resistor 54 functions, and a relatively large current can flow. Therefore, the sound of the buzzer 42 is also relatively loud. Furthermore, when the alarm control switch S is closed once from the above state, the shift register shifts by one step.

The state of [Equation] is reached, and the P-type FET 56 is turned off. Therefore, in this state, both current limiting resistors 54 and 55 function.
Since only a relatively small current flows, the sound when the buzzer 42 is driven also becomes relatively small. Furthermore, when the alarm control switch S is closed once from the above state, the shift register 33 is

The state of [Equation] is reached, and the INH circuit 52 is turned off. Therefore, in this state, even if the output side of the OR circuit 40 goes to the [H] level, the buzzer drive signal cannot pass through the INH circuit 52, so the buzzer 42 is kept in a state where it is not driven at all (that is, a state where it cannot be driven). That means that.
Furthermore, when the alarm control switch S is closed again from the above state, the shift register 33 returns to the initial state shown in the figure. Note that when switching the drive state of the buzzer 42 as described above, it is necessary to perform the operation while confirming whether the state has been changed. In this embodiment, when closing the alarm control switch S for switching control, if the switch S is kept closed for a slightly longer period of time, it is possible to actually hear the volume when the buzzer 42 is activated. It is structured so that it can be checked by looking at it. That is, when the alarm control switch S is kept closed as described above, the state of the shift register 33 is switched by the pulse signal generated by the differentiating circuit 30 at the moment of closing, and while the alarm control switch S is kept closed, The output side of the AND circuit 43 maintains the [H] level throughout the period. As a result, the output side of the OR circuit 40 also becomes [H] level, and the buzzer 42 is driven under conditions controlled by the state after switching of the shift register 33.
You can immediately hear and confirm with your ears what volume the buzzer 42 has been switched to. Further, the shift register 33

When the state is changed to [Formula] and the buzzer 42 is held in a non-driveable state, the output sides of the OR circuit 44 and the AND circuit 45 go to [H] level, so that the above-mentioned hand movement state control circuit At step 22, the drive mode of the step motor is switched. That is, in the normal state, the step motor 25 is driven one step at a time at one-second intervals, but the driving state is changed so that the step motor 25 is driven two steps at a time at two-second intervals. By visually observing the movement state of the second hand 3, it can be confirmed that the buzzer 42 is maintained in a non-driveable state. In this case, even if the alarm control switch S is not kept closed,
Since the OR circuit 44 and the AND circuit 45 continue to maintain the ON state, the above-mentioned hand movement modulation is maintained and the buzzer 42 is not driven even if it continues to be closed. In addition, when the reuse 6 is pushed back to the normal position 6a, the hand operation returns to the normal state, but if the alarm control switch S is closed at any time, the output side of the OR circuit 44 becomes [H] level. , AND
The output side of the circuit 45 also goes to [H] level, and as a result, the drive state of the step motor 25 is modulated in the same way as in the above case, so that it can be clearly indicated that the buzzer 42 is held in the non-drive state. has been done. According to the present invention, only when the reuse for setting the hands or changing the alarm set time is set to a predetermined pullout position, the signal input switch for stopping the sounding element when the alarm set time is reached is activated. Since it is controlled so that a signal for switching the driving state of the sounding body can be inputted, the sounding body can be easily selected and controlled to the desired driving state with a simple configuration and operation, or it can be used as a watch when the watch is normally carried. This can prevent the switches inside from malfunctioning. That is, even in the above-mentioned embodiment, even if the alarm control switch S is pressed by mistake during normal carrying when the reuse 6 is in the normal position 6a, a malfunction such as switching the driving state of the buzzer 42 is prevented. Ru. Furthermore, since an increase in the number of external operating members can be suppressed, it is also possible to avoid complicating the structure of the pointer display type electronic timepiece. In addition, there is an input function using a switch for alarm control.
Since the state in which the watch is being controlled can be identified by the reuse pull-out position itself, there is no need to provide a special means for identifying this in a part of the pointer display type electronic watch. Become. Furthermore, in the present invention, it is possible to expand the input functions of the alarm control switch by adding a slight configuration to the reset switch mechanism, which is an existing element in the pointer display type electronic timepiece. The complexity of the structure of the switch mechanism can also be minimized. Further, in the above-described embodiment, the volume of the sound generating body and the holding state of the sounding body in the non-driveable state are switched, but it is also possible to switch between either one of them. Furthermore, it is clear that the present invention can be applied to control of switching not only the volume but also the timbre, pitch, melody, etc.

[Brief explanation of the drawing]

1 to 4 are diagrams showing one embodiment of the present invention, in which FIG. 1 is a plan view showing the external appearance of a pointer display type electronic watch with an alarm, and FIG. 2 is a reset switch mechanism shown in FIG. 1. 3 is a block diagram showing the circuit configuration, and FIG. 4 is a circuit diagram of the main part of FIG. 3. 5...Guide needle, 6...Reuse, 6a...Normal position,
6b...1st pull position, 6c...2nd pull position,
7... Winding stem, 8... Mandarin duck, 9... Reset lever,
10, 11...terminal pin, 20...crystal oscillation circuit, 2
DESCRIPTION OF SYMBOLS 1... Frequency division circuit, 22... Step motor drive state control circuit, 25... Step motor, 31... Second counter, 33... Shift register for buzzer drive state control, 36... Alarm control signal forming circuit, 41... Buzzer drive circuit, 42 ... Buzzer, Sr... Reset switch mechanism, S... Alarm control switch, M... Reference switch.

Claims (1)

[Claims] 1. An oscillation circuit, a frequency dividing circuit, and a step motor driven based on the output from the frequency dividing circuit;
a reset lever configured to be settable in at least three axial positions including a normal position, a first-pull position, and a second-pull position; and a reset lever configured to move in conjunction with the axial position of the crown. , a reset switch terminal having a function of resetting at least a part of the frequency dividing circuit in conjunction with contact with the reset lever when the reuse is set to the two-step pull position, and an alarm set time. an alarm device configured to drive a sounding body when the alarm set time is reached; an alarm control switch equipped with a ring stop signal input function for interrupting driving of the sounding body when the alarm set time is reached; A pointer display type electronic timepiece comprising a sounding element drive control circuit configured to switch the driving state of a sounding element of the alarm device in response to a driving state switching signal, wherein the reset lever is activated in response to the reset lever. By attaching one auxiliary switch terminal in addition to the reset switch terminal, the three axial positions of the crown can be determined based on the contact relationship between the reset lever, the reset switch terminal, and the auxiliary switch terminal. In addition, according to the identification result, when the reuse is set to the normal position, the alarm control switch is provided with a function of inputting the sound stop signal, and the reuse is set to the normal position. 1. An alarm control device for a pointer display type electronic timepiece, characterized in that an input control circuit is provided for providing the alarm control switch with an input function of the drive state switching signal when the alarm control switch is set to the stepped position. 2. The alarm control device for a pointer display type electronic timepiece as set forth in claim 1, wherein the sounding element drive control circuit has a function of switching the volume when the sounding element is driven. 3. The guideline as set forth in claim 1, wherein the sounding element drive control circuit includes a function for setting a drive-disabled state in which the sounding element is not driven even if the alarm set time has arrived. Alarm control device for display type electronic clock.