JPS6260037B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention aims to improve the zero position adjustment mechanism as a correction device in a multifunctional timepiece such as a chronograph function in an analog quartz.

The zero return mechanism of an analog chronograph watch is the same as the chronograph (mechanical type) of a well-known conventional mechanical watch.The chronograph hand is set to zero by adjusting the heart cam with a lever, or the chronograph hand's motor is used. It is conceivable to return to 0 by fast forwarding.

Here, we will propose one method of realizing a chronograph using the latter motor rapid-forward method. FIG. 1 is a block diagram that realizes a chronograph by separating the chronograph motor and driving and displaying it. FIG. 2 shows an example of the clock display in that case.

The signal of time standard 1 is divided by frequency dividing circuit 2,
In addition to the well-known analog quartz basic configuration of a motor drive circuit 3 that shapes the waveform of a motor drive signal, a time motor 4, and a time display 5, a motor drive circuit 1 is added to display and operate a plurality of chronograph hands.
0, 13, chronograph motor A11, chronograph motor B14, display (A) that displays, for example, 1/10 seconds as a chronograph hand (A) 12, chronograph display that displays, for example, every second as a chronograph hand
(B) Has two 15 chronograph hands. It consists of a start/stop switch 7 for the chronograph hand and a reset switch 8 (for returning the chronograph hand to zero). The lock switch 6 is a switch that allows the zero position of the chronograph hand to be corrected, and is normally locked. The signals from these switches are prevented from chattering by the switch control circuit 9, and combined with the signals from the frequency dividing circuit 2, control the chronograph motor drive circuits 10 and 13.

In this state, the lock switch 6 is locked for normal chronograph operation, so when the start/stop switch 7 is pressed, the chronograph starts, and the 1/10 second hand 12 and the per-second hand 15 rotate. When the start/stop switch 7 is pressed again, the chronograph hands 12 and 15 stop and the chronograph hands 12 and 15 stop, e.g.
The lap time can be read as "Second 3". By repeatedly pressing the start/stop button 7, the accumulated time can be measured. Next, by turning on the reset switch 8 in the stop state, the chronograph hand 1 is
2 and 15 return to 0. (1) The operation by the switch operation up to this point is the same as that of a well-known mechanical chronograph. However, the
If the method (1) of returning to zero is attempted to be performed electronically, the following problem will occur.

That is, the 0 second positioning of the chronograph to which the present invention relates will be described. The positions of the chronograph hands 12 and 15 in FIG. 2 are such that the electronic circuit explained in FIG. In the case of a regular watch that does not use a battery or other power source to back up the battery,
After replacing the battery, the electronic circuit may be started (i) arbitrarily, or (ii) all hands of the chronograph may be reset in terms of the circuit so that they start from zero. In either case, if you start the chronograph after replacing the battery while the chronograph hands 12 and 15 in Fig. 2 are stopped at any position, the electronic circuit will start and the chronograph hands will move to zero. The starting position of will be shifted.

By providing a simple operating means for aligning the start of this electronic circuit and the position of the mechanical hands, the present invention processes chronograph watches as circuit-wise as possible, making complex chronograph watches simpler. This provides a means to achieve this goal.

The electronic circuit in Fig. 3 and the timing chart in Fig. 4 show that when the chronograph hand is moved to the 0 position or any position and the chronograph hand is moved from the correction state to the lock state, the electronic circuit simultaneously resets the chronograph hand, and the chronograph hand is reset at the same time. A modified circuit is shown to make the electronic circuit of the graph start from 0.

When the chronograph is used under normal conditions, a winding stem linked to a well-known hand setting mechanism is used as the lock switch 6 shown in FIG. By doing this, the switches 7 and 8 operate exclusively for the chronograph in the normal push-in position.

The frame 9a in FIG. 3 is the switch control circuit 9 in FIG.
This shows the modification circuit included in the switch control modification circuit. In the embodiment of the present invention, the chronograph control switches 7 and 8 are also used as pointer correction switches. Therefore, input signals c from switches 7 and 8 to switch control circuit 9a,
g is configured to be input only when the winding stem is pulled out and the output b of the lock switch 6 that is interlocked with the winding stem is "High". However, the circuit for inhibiting the input signals c and g of the switches 7 and 8 in conjunction with the output b of the lock switch 6 is constituted by a well-known gate circuit, but is not related to the present invention and will therefore be omitted. Therefore, the lock switch does not operate normally, but only when the winding stem is pulled out.
Not only can it be used safely as a chronograph, but it can also correct misalignment of the chronograph hands due to falls, etc.

Under these modified conditions, the input c of the switch 7 is connected to a flip-flop 20 (hereinafter referred to as FF), a timer or counter 9, and an AND gate 2.
1, 22, 23, OR gates 18, 19, etc., and the input g of the switch 8 changes the gates 18, 19, 21, 22 by the input a from the frequency divider circuit 2 (Fig. 1). It is a correction circuit that operates.

Explain the operation of the circuit. The input c of the switch 7 is sequentially input to the FF20 as a clock input, and the output Q of the FF20 is alternately High and Low, and the AND gates 21 and 22 are alternately connected.
The operating state of Hight, ie, FF20, becomes the selection circuit. At this time, the output of the timer 9 goes high every time the signal c is input, so when the timer setting value, for example, outputs only for 6 clock pulses, it goes low and does not output. The six outputs while High is input to gate 23, and gate 1
8. Since the signal is input to the chronograph motor drive circuit A10 via the gate 21, the motor rotates by 6 steps. Next, when the switch 8 is input a desired set number of times and the signal g is input via the line 30, the motor drive circuit 10 is similarly operated via the gates 18 and 21. can be input to move the chronograph hand 12 by an arbitrary amount. If you operate switch 7 in exactly the same way and input signal input c, FF
The output of 20 becomes High and the gate 22 becomes High.
At the same time, timer 9 operates, and timer 9
The output enters the gate 23 and passes through the gate 19 and gate 22 to the chronograph motor drive circuit B1.
Enter 3. Then, a signal of an arbitrary amount is applied from the switch 8, and a signal of the arbitrary amount is outputted to the motor drive circuit 13. Therefore, as shown in the operation and movement of the hands in FIG. 2 (FIG. 4), when switch 7 is pressed, hands 12 and 15 sequentially rotate during the Hight period of timer 9 in accordance with the input of switch 7. or 15, which can be modified. The amount of rotation of the hands by this timer can also be set to one rotation of the chronograph hands, making it possible to clearly indicate which hands are in the corrected state. Although an example of two chronograph hands is shown here, three or more independent motors may similarly be used to rotate and clearly indicate the chronograph hands when sequentially selecting them. The hand thus selected is corrected by the switch 8, for example, to the 0 position. Thereafter, by pushing in the winding stem as the lock switch 6, the correction state is switched to chronograph operation. In this state, the start/stop button 7 and reset switch 8 are operated as a stopwatch, and the function of the reset 8 is to fast forward the motor by the difference between the motor input signal from the start and one rotation of the hand in the electronic circuit. A circuit allows the chronograph hands to be sent to zero electronically. The explanation of this circuit is omitted as it is not the main point of the present invention, but if the mechanical 0 position of the chronograph hand cannot be corrected as in the present invention (it may be any position depending on the purpose of use), the chronograph When the graph is started, the electronic circuit and the needle have different 0 start positions, and the electronic circuit only counts the signals sent to the motor. Therefore, when resetting, the difference between the signal for one rotation of the hand and the above count number is used as the output of the electronic circuit to drive the motor, so if the 0 position at the mechanical start deviates, the fast forward amount will also be changed at the time of resetting. will stop at the deviated position, making it impossible to realize an accurate chronograph in which the mechanical 0 position and the amount of electrical signal feed are synchronized.

In this way, by pulling out and pushing in the reuse, you can change the chronograph hand from chronograph operation to zero.
The advantage of switching the position correction state is that it can be confirmed by pulling out the crown that the watch has entered the correction state from the crown position 6a, and that it can be returned to the normal chronograph state by pushing in the crown from the correction state. As a result, it can be confirmed at the reuse position that the electronic circuit has also been reset to 0 at the same time and has entered a starting state from 0. If it is not a reuse drawer method,
For example, if you provide a separate dedicated button for chronograph correction, press this button to correct the chronograph hands to the 0 position, and then press the next button to return the chronograph to its normal state.
In the case of a push button, there is no way to check whether the button has been pushed or not, so it is impossible to know whether the chronograph hand has entered the correction state or not.Also, after adjusting the chronograph hands in the correction state, you must always press the button to return to the normal state. However, there is a risk that the user may forget to press the buttons, and the user may not be able to remember the order in which they should be pressed. The reuse of the present invention has the advantage that the reuse correction position is clear, there is no hesitation in operating it, and it is easy to remember.

As described in detail above, in the present invention, an analog chronograph timepiece is constructed by using a complex number or more independent motors in a well-known analog timepiece such as a quartz timepiece that divides the frequency of a time standard to drive a motor. By providing a means to easily correct the 0 position at which the chronograph hand starts using an external operation, it became possible to match the start position of the electronic circuit and the start position of the analog hand, making it possible to eliminate the need for complicated heart cams. It became possible to create an analog chronograph watch without using a lever or lever.

Another embodiment of the present invention will be described with reference to FIG.

In the so-called calendar clock with the well-known analog quartz date and day of the week, the first stage of the reuse 6, which is a lock switch connected to the winding stem as an external operating member, is in the neutral state, and the second stage 6a is in the position of the calendar 25. It is common practice to quickly adjust the date and day of the week, and to adjust the second hand at the third stage 6b, which is the position for setting the time.

When a chronograph mechanism is adopted in such a timepiece with a calendar, correction of the chronograph hands can be easily performed by applying the present invention.

In other words, the correction of the chronograph hands is locked in the position of the crown 6, and the chronograph correction position is set at the same time as the calendar correction in the pulled-out position of the crown 6a. The second hand of the reuse 6b is adjusted to the hand alignment position. With this configuration, the switches 7 and 8 can normally start, stop, and reset as a chronograph timepiece. Next, by pulling out the reuse, the calendar can be adjusted at position 6a, and at the same time, the chronograph hands can be adjusted. Furthermore, the time hands can be set at the reuse 6b position. Because of this configuration, the position of the chronograph hand 6a is memorized as a correction position, and the position of the chronograph hand 12 can be set at 6b by rotating the reuse.
For example, when the chronograph hand 12 is displayed in hours and the hand 15 is in minutes, the chronograph hand 12
After correcting the time position by shifting it by an hour's scale and setting the hand 15 to the same minute position as the time display 5, push in the watch 6 and press the chronograph start button 7 to set it to the normal carrying position. Since the chronograph hands 12 and 15 are always displayed one hour ahead of the normal time display 5, it can be used as a separate time difference or dual timepiece. In analog electronic watches, while attempting to make the chronograph multi-functional, it has become possible to perform complex functions with a minimum of three external operating members without the need for special buttons related to correction.

As described above, according to the present invention, two external input switches are used to correct an electronic timepiece that is equipped with two hands that display different unit times and two motors that drive the hands, and the hands that are adjusted by one switch are adjusted. When selected, the selected pointer is continuously driven by a predetermined amount to clearly indicate that it has been selected, and the other switch can be used to correct the pointer for each pulse, so each one is driven by an independent motor. To make it possible to modify a plurality of guidelines with a small number of switches, and to make the modification extremely simple.

[Brief explanation of the drawing]

Figure 1 is a block diagram of an analog chronograph watch. Figure 2 is an external view of an analog chronograph watch. FIG. 3 is a partial diagram of an electronic circuit diagram of an analog chronograph timepiece according to the present invention. FIG. 4 is a timing chart of the analog chronograph timepiece shown in FIG. 3 according to the present invention. FIG. 5 is an explanation of another embodiment. 1... Time standard, 2... Frequency division circuit, 5... Time display, 6... Switch (lock), 7... Switch (start, stop), 8... Switch (reset), 9... Switch control circuit, 10, 13
... Motor drive circuit, 10, 14 ... Chronograph motors A and B, 12, 15 ... Chronograph display A and B, 17 ... Timer or counter.

Claims (1)

[Claims] 1 Frequency divider circuit 2 that divides the time standard output signal;
A first pointer 12 that displays a first unit time, a second pointer 15 that displays a second unit time, and a first drive circuit 10 that drives the first pointer based on the output signal of the frequency dividing circuit. and a first motor 17, a second drive circuit 13 and a second motor 14 that drive the second pointer based on the output signal of the frequency dividing circuit, and a second motor 14.
A first switch 7 and a second switch 8 that generate external input signals for correcting the positions of the pointer and the second pointer; a switch control correction circuit 9a that independently outputs a correction signal; the switch control correction circuit includes a selection circuit 20 that selects a pointer to be corrected based on the input signal of the first switch; Gates 21 and 22 are connected between the drive circuits and pass a correction signal to the drive circuit of the pointer selected by the selection signal of the selection circuit, and a predetermined number of gates are connected in synchronization with the input signal of the first switch. An analog electronic device characterized by comprising means 9, 23 for outputting continuous correction signals to the gate, and means 30 for outputting a single correction signal to the gate based on the input signal of the second switch. Clock correction device.