JPH0143666Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a correction mechanism for a watch, and is particularly designed to allow correction to be made with simpler operations.

(Prior art) Conventionally, when correcting the time of a clock that displays the time with hands, the method used was Utility Model Application No. 57-19483 or
This was done by turning a correction knob on the back of the watch case, as shown in the drawing of No. 122596, or turning on a correction switch on the front of the watch.

However, these correction methods cannot be done with one hand because they require holding the watch.
Furthermore, pushing and turning small correction knobs requires force, and especially when a large amount of correction is to be made, it requires time and effort for the user, whether it is a switch or a knob, and is extremely troublesome. It was hot.

Therefore, in recent years, the correction operation member has been constructed with a mounting state detection switch that is turned on depending on the mounting state of the watch. A scheme was proposed in which modifications could be made.

(Problems to be Solved by the Invention) According to this method, if the watch is placed in an unusual position, corrections can be made without touching the watch. However, when making adjustments to a pointer-type analog watch, the only way to make adjustments is to fast-forward the hands, and when making adjustments for many hours or for small advances, it is necessary to make corrections over a long period of time. At this time, the user had to keep a close eye on the watch so as not to make too many adjustments, but this was a pain even if he did not have to touch the watch. For this reason, it is possible to memorize the correction time in advance and automatically stop the correction after that amount of correction has been made, but this is too time-consuming and inconvenient when correcting a slight delay. Ta.

(Configuration to solve the problem) The present invention enables the above-mentioned corrections for many hours and corrections for a small delay to be easily performed, and for this purpose, multiple external switches are configured to Consisting of two placement state detection switches that are provided corresponding to the outer surface of the watch and are turned on and off when the watch is placed in a placement state with the bottom surface being on the exterior surface, which is different from the normal placement state. While the ON operation signal of one of the placement state detection switches is being generated, the correction circuit is operated, and while the other placement state detection switch is being operated, the number of ON operations of this placement state detection switch is controlled. a memory circuit that stores the hour, an hour detector that reduces the memory content of the memory circuit by 1 each time it detects that the hand indicates the hour, and a correction circuit that operates until the memory content of the memory circuit becomes 0. The present invention is characterized in that it is provided with a correction amount variable circuit.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 2 is a perspective view showing the external appearance of an analog display timepiece according to an embodiment of the present invention, and FIG. 3 is a front view thereof.

As shown in FIGS. 2 and 3, there is a frame 4 constituting the watch exterior 2, and switch plates 6a, 6 fitted into portions corresponding to both side surfaces of the frame 4 so as to protrude slightly.
It has b.

FIG. 4 is a sectional view taken along the line A--A showing the structure of the switches provided under each of the switch plates 6a and 6b.

An elastic movable piece 10a is attached to the back side of the switch plate 6a, and the end of this movable piece 10 is attached to a substrate 12a attached to the frame 4. A pair of conductive members 14a and 16a are placed on the substrate 12a covered by the movable piece 10a.
A conductive member 18 is also attached to the inner surface of the movable piece 10a at a position corresponding to the conductive members 14a and 16a. and conductive member 14
Lead wires 20a and 22a are connected to a and 16a, respectively, and the other ends of the lead wires 20a and 22a are connected to a timepiece circuit of a movement 24 housed within the timepiece body 2.

The switch plate 6b similarly has a movable piece 10b, a substrate 12b, conductive members 14b, 16b, 18b, and lead wires 20b, 22b.

This switch plate 6, movable piece 10, substrate 12, conductive members 14, 16, 18 and lead wires 20, 2
2 constitutes a placement state detection switch 26 that is turned on in response to the placement state of the watch body 2.

5a to 5c and FIG. 6 are front views of the timepiece showing the method of adjusting the timepiece in this embodiment.

As shown in FIG. 5a, when the switch plate 6a is placed with the left side as the bottom surface, the weight of the watch body 2 presses the switch plate 6a, and the movable piece 10a is also pressed, so that the conductive member 14a on the substrate 12a, 16a and the conductive member 18a in the movable piece 10a come into contact, and the conductive members 14a and 16a are electrically connected. This means that the placement state detection switch 26a has been turned on.

In this embodiment, no correction is made in this state, and as shown in FIG. 5b, when the switch plate 6b on the right side is pressed with a finger, the conductive member 14
b, 16b and 18b are in contact with each other, and the conductive member 14b
and 16b are electrically connected. This means that the placement state detection switch 26b has been turned on.
At this time, for example, if you press the button three times with your finger, the pointer will be fast-forwarded immediately thereafter. Then, as shown in Figure 5c, the minute hand rotates by the number of times you press it with your finger.
The time will advance 3 hours and stop automatically.

On the other hand, when the device is placed with the right side as the bottom surface as shown in FIG. 6, the placement state detection switch 26b is turned on. In this case, the pointer immediately starts fast forwarding,
The fast forward correction continues until the mounting state is changed and the switch 26b is turned off.

FIG. 1 is a circuit block diagram of an analog display timepiece in this embodiment.

In the figure, an oscillator 30 is a circuit that generates a reference signal for time display, and a frequency divider circuit 32 is a circuit that divides the reference signal to a required frequency, for example, 1 Hz. The drive circuit 3 receives a signal from the frequency dividing circuit 32.
4 outputs a drive pulse signal for driving the motor 36. The movement of the motor 36 is transmitted to the hand 40 via the wheel train 38, and the time is displayed. The motor 36, the wheel train 38, and the hand 40 constitute a time display mechanism 42. Further, the oscillator 30, frequency dividing circuit 32, and drive circuit 34 constitute a clock circuit 44.

A correction circuit 46 for rapidly forwarding the time displayed by the hand 40 is composed of a correction motor 48 built into the wheel train 38 and a drive circuit 50 for driving the correction motor 48.

FIG. 7 shows the correction motor 48 in FIG.
FIG.

Between the upper base plate 54 and the intermediate base plate 56 are a rotor 37, a fifth wheel 60, a fourth wheel 62, which constitute the motor 36.
and a third wheel 64 are pivotally supported, and a minute wheel 66, a sun wheel and an hour wheel 68 (not shown) are pivotally supported between the intermediate base plate 56 and the base plate 58, and these are connected to the wheel train 3.
8. A correction motor 48 is attached to holding members 70 and 72 provided on the base plate 58, and a correction pinion 74 of the correction motor 48 is attached to the upper base plate 5.
4 and a correction transmission wheel 76 pivotally supported in the intermediate base plate 56.
It meshes with the third wheel 64 via. Further, the rotation direction of the correction motor 48 is such that the wheel train 38 is connected to the motor 36.
When the wheel train 38 is rotationally driven by the rotor 37, the correction pinion 74 of the correction motor 48 is rotated in the same direction as the direction in which the wheel train 38 is rotationally driven.
It is set to work with.

The hour detector 80 that detects when the displayed time is on the hour consists of a magnet 82 attached to the back of the minute hand 82 and a 12 hour mark on the dial as shown in FIG.
It consists of a relay switch 84 provided on the hour scale. FIG. 8 is a sectional view taken along the line A--A in FIG. 3. According to this configuration, when the hour hand indicates the hour such as 1 o'clock or 11 o'clock, the minute hand is always at the 12 o'clock scale position, so the permanent magnet 82 fixed to the minute hand
operates the relay switch 84 on the scale, opens and closes the relay switch 48, and outputs the hour detection signal 8.
It will output 0a.

The hour detection signal 80a is input to a down clock input φ of an up/down counter serving as a memory circuit 86. Up clock input φ of this counter
is input to an AND gate 88, to which the placement state detection switches 26a and 26b are connected.

On the other hand, the count output of the up-down counter
Q ₁ to _{Q 4} are input to the OR gate 90, and the output of the OR gate 90 is sent to the correction circuit 4 via the OR gate 92 together with the output of the placement state detection switch 26b.
Enter 6. These OR gates 90 and 92 constitute a modification amount variable circuit 94 that varies the modified fast forward amount by the modification circuit 46 based on the output of the storage circuit 86.

Further, the outputs Q ₁ to _{Q 4} of the up-down counter serving as the storage circuit 86 are input to the correction completion notification circuit 96 . The correction end notification circuit 96 is a circuit that generates a notification sound when the fast forward correction amount reaches one hour. The aforementioned count outputs Q ₁ to _{Q 4} are input to an AND gate 98 in the modification completion notification circuit 96 . The AND gate 98 also receives the hour detection signal 80a and the output of the AND gate 100, which is input to the placement state detection switch 26a.
The output of the AND gate 98 is input to the sound generation circuit 102.

The operation of this circuit will be explained below with reference to the front views of FIGS. 5a to 5c and the time chart of FIG. 9.

At time _t1 , when the watch is placed with the left side facing down as shown in FIG. 5a, the placement state detection switch 26a is turned on and the AND gates 88 and 100 are opened. In this state, the correction circuit 46
Since no signal is input, no correction is made.

In this state, as shown in FIG. 5b, if you press the switch plate 6b on the top surface three times with your finger (time t ₂ ),
Switch 26b has been turned on three times, and three pulses are generated at its output. This pulse is passed through an AND gate 88 to the up clock input φ of the up down counter as a memory circuit 86.
input the count output to "3" (Q ₁ , Q ₂ ,
Q ₄ =L, Q ₃ =H). As a result, the outputs of the OR gates 90 and 92 become "H", the correction motor 48 in the correction circuit 46 is driven, and the time is corrected for fast forwarding.

During this fast-forward correction, each time the minute hand passes over the 12 o'clock scale, the relay switch 84 is turned on as described above, and the hour detection signal 80a rises to H. This rising signal is input to the down clock input φ of the up down counter. As a result, the count output of the up-down counter is subtracted, and when the count output becomes "1", the AND gate 9
8 is in an open state.

And since the fast forward correction was made, the minute hand has moved 12 times three times.
When the hour mark is passed, that is, the time is fast-forwarded by three hours (time t ₃ ), a third rising signal is generated in the hour detection signal 80a. This signal is input to the sound generation circuit 102 via AND gates 100 and 98. As a result, the sound generation circuit 102 generates a notification sound. Further, due to the rising signal from the hour detector 80a, the outputs _Q1 to _Q4 of the up-down counter serving as the memory circuit 86 all become L, and the outputs of the OR gates 90 and 92 become L. As a result, the correction circuit 46 stops driving, the fast-forward correction is stopped, and the normal hand operation is resumed.

As described above, according to this embodiment, when the left side is placed as the bottom surface and the switch on the right side is turned on with a finger, the minute hand rotates on the dial by the number of times the switch is turned on, thereby performing fast forward correction.

As shown in FIG. 6, when placed with the right side as the bottom surface, the switch 26b is turned on and the correction circuit 46
An H signal is input to , and a fast forward correction is made. In this case, the fast-forward correction will not stop unless the watch is returned to its normal placement and the switch 26b is turned off.

FIG. 10 is a block circuit diagram of an analog display timepiece according to another embodiment of the present invention in which the time is corrected by rotating a watch drive motor at high speed without using a correction motor as a correction circuit. It is. Components having the same configuration as those in FIG. 1 are given the same reference numerals and explanations will be omitted.

The drive circuit 34 in the clock circuit 44 includes a frequency dividing circuit 3.
16 Hz, 8 Hz, 4 Hz, 2 Hz and 1 Hz from No. 2 are input, and all these frequency signals are input to AND gate 104. For this reason, and gate 10
The output signal A of No. 4 is a signal that generates one pulse per second, as shown in the time chart of FIG. The signal A and the 16Hz signal are connected to an AND gate 106,
Modification circuit 11 consisting of 108 and OR gate 110
Enter 2. The output of the correction amount variable circuit 94 is input to the control input of this correction circuit 112.
If the watch body 2 is in the normal mounting state, the output of the correction amount variable circuit 94 becomes L, and the correction circuit 112 outputs the signal A, and the clock body 2 is in the mounting state as shown in FIG. 5 or 6. If so, the output becomes H and the correction circuit 112 outputs a 16Hz signal.

The output from correction circuit 112 is input to clock input φ of FF 114 and one of NAND gates 116 and 118. The other inputs of the NAND gates 116 and 118 are the Q output of the FF 114,
The Q output is input, and the pulse signal obtained at the output of the correction circuit 112 is sent to the NAND gates 116 and 11.
It is distributed alternately to 8 outputs. The distributed pulse signals are amplified by the buffer 120 and input to the motor 36 in the time display mechanism 42.

With this configuration, when the watch body 2 is placed in the state shown in FIG. 5 or 6, the motor 36 rotates at high speed in response to a 16Hz signal, and
0 is fast forwarded. With such a configuration, there is no need for a correction motor, and the accompanying wheel train configuration is also unnecessary.

(Effects of the invention) As described above, according to the invention, correction can be started and ended by a simple operation of changing the mounting state of the watch body. Moreover, this operation can be performed with one hand, eliminating the need to use both hands as in the case of conventional watches, and the adjustment operation continues even if the user does not touch the watch during the adjustment, making the adjustment operation much easier than with conventional watches. It becomes very easy to do.

Furthermore, according to the present invention, if the amount of correction takes many hours, the set amount of correction can be made by changing the mounting state of the watch body and inputting the correction value, and there is no need to keep an eye on it during that time. do not have. Further, if the correction is to be made within an hour, the pointer can be placed in another position, the pointer can be fast-forwarded, and when the required time comes, the pointer can be placed in the normal position, eliminating the need for setting correction values. In this way, it is only necessary to change the placement state according to the amount to be corrected, which has the advantage of not requiring any troublesome effort.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of an analog display timepiece according to an embodiment of the present invention. FIG. 2 is a perspective view of an analog display timepiece according to an embodiment of the present invention. Figure 3 shows the second
FIG. 2 is a front view of the analog display clock shown in the figure. Figure 4 shows
1 is a sectional view taken along line A-A of a timepiece according to an embodiment of the present invention.
5 and 6 are front views showing different mounting states of the watch. FIG. 7 is a sectional view showing the relationship between the wheel train and the correction motor of an analog display electronic timepiece according to an embodiment of the present invention. FIG. 8 is a sectional view taken along the line A-A in FIG. 3. FIG. 9 is a time chart for explaining the operation of the analog display clock shown in FIG. 1. FIG. 10 is a block circuit diagram of an analog display electronic timepiece according to another embodiment of the present invention. FIG. 11 is a time chart in the circuit of FIG. 10. 26a, 26b...Placement state detection switch, 4
2...Time display mechanism, 44...Clock circuit, 46...
... correction circuit, 80 ... hour detector, 86 ... memory circuit, 94 ... correction amount variable circuit.

Claims (1)

[Scope of utility model registration request] A clock circuit that generates a reference signal, a motor that rotates in response to the reference signal, a wheel train driven by the motor, a pointer driven by the wheel train to indicate the time, and a plurality of external switches. and a correction circuit that rapidly adjusts the time indicated by the pointer by operating the external switch. Two placement state detection switches are configured that are turned on and off by setting the device to a placement state where the bottom surface is different from the exterior surface, and while the on operation signal of one of the placement state detection switches is being generated. a memory circuit that operates the correction circuit and stores the number of times the placement state detection switch is turned on while the other placement state detection switch is turned on; The present invention is characterized by being provided with an hourly detector that decrements the memory content of the memory circuit by 1 every time it is detected, and a correction amount variable circuit that operates the correction circuit until the memory content of the memory circuit becomes 0. Clock correction mechanism.