JPS60115892A - Electronic timepiece - Google Patents

Abstract

PURPOSE:To set desired time through simple constitution by pressing and rotating a rotary bezel simultaneously. CONSTITUTION:A timer hand rotates clockwise synchronizing with rotational moderation of the rotary bezel 4, and a time setting is made by stopping the bezel 4. In this case, a buzzer piezoelectric element 10 is adhered to the back 12 of a timepiece case and the electromotive voltage of the element 10 is transmitted to the circuit in a timepiece movement by a spring 11, and the voltage is converted by a control signal with one pulse waveform; and the timer hand is advanced, step by step, to set desired time.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of input means for time setting, etc. in an electronic timepiece having a buzzer device.

[Prior art and problems]

Conventional input means for electronic watches include the push button/yu button, and the turning of the watch movement to turn on and off the contacts of the watch movement.
However, these buttons or crowns were very small and difficult to operate.

[Purpose of the invention]

The present invention aims to solve the above-mentioned drawbacks, and it is an object of the present invention to provide an electronic time h1 input means that is easy to operate and has a simple structure.

[Embodiments of the invention]

Next, the present invention will be described in detail along with an example.

1, 2, and 3 show an electronic timepiece with a timer function in which the present invention is implemented. Fig. 1 is an external plan view of an electronic watch with a timer function. -1 (-2 minutes for displaying the Saturday time, a second hand -2 for displaying the timer time, and a timer 91-3 for displaying the timer function. The timer button 24 for starting or stopping the timer is a rotating bezel for setting the time of one timer.

To explain the operation of the timer function of this electronic watch,
First, by pressing the bezel 4 once, the timer hand 2 returns to zero, and when the rotating bezel 4 is rotated clockwise while being pressed once, the rotating bezel 4 rotates with tRi Iff. In synchronization with the moderation of rotation, the timer hand 2 rotates clockwise. When the timer hand 2 has rotated to the desired position, the timer time can be set by stopping the rotation of the rotating bezel 4 and stopping pressing it. Thereafter, the timer is started by turning on the timer button 6, and a buzzer sound is generated when the set time elapses.

Next, regarding the structure of the one-turn bezel 4+1, Figure 2 +A
)-(11). FIG. 2(A) is a cross-sectional view showing the A-A cross section shown in FIG.
) is a cross-sectional view taken along the line B--B shown in FIG. In FIG. 2(A), 4 is the rotating bezel described in FIG. 1, and the rotating bezel 4 is formed with a convex portion 4a on one inner peripheral portion and sawtooth teeth 4) on one lower surface. Reference numeral 5 indicates a one-time watch case, and the temporary H case 5 is formed with a bezel storage groove 5a for storing the one-turn bezel 4, and the convex portion 4 of the one-turn bezel 4 is formed on the inner surface of the bezel storage groove 5a.
Six bands 5b are provided for retaining a.

As a result, a part of the one-turn bezel 4 is stored in the bezel storage groove 5a of the watch case 5, and at the same time, the protrusion 4a of the one-turn bezel 4 is hooked on the band 51 of the one-time watch case 5, and the bezel 4 is removed from the time case 5. Detachment-1-Rotation in the circumferential direction h] becomes possible. Reference numeral 6 denotes a connecting bottle that moves downward by capturing the vertical movement of the rotating bezel 4. Reference numeral 7 denotes a connecting bottle push-up spring for pushing up the connecting bottle 6. Reference numeral 8 designates a circuit board for the clock movement, and the circuit board 8 is provided with a contact portion 8a that comes into contact with the connecting bottle push-up spring 7 when it moves downward. A piezoelectric element 10 for generating a buzzer sound is attached to the lid 12 of the case. 11
is a connection spring that contacts the electrode surface of the piezoelectric element 10 and transmits and receives signals between the monthly EX element 10 and the circuit section A of the time movement.

Next, in FIG. 2(B), -41) changes the shape of the sawtooth formed on the lower surface of the cell 4 to 71<-4
”.

Reference numeral 9 designates a moderation spring that engages with the saw teeth 4b and prevents the bezel 4 from rotating once in the direction opposite to the arrow C. The moderation spring 9 is fixed to the bottom surface of the cell storage groove 5a of the case 5 with a fixing pin 9a. Further, the connecting bottle 6 is set so as to be connected to the sawtooth 1141) 2] as shown in 1z.

Next, the operation will be explained using FIG. 2 (Δ+-(H)). As explained in FIG. As the connecting pin 6, which is in pressure contact with b, moves downward, the spring 7 also moves downward, and the connecting pin push-up pie 7 comes into contact with the contact portion 8a of the circuit board 8, and the switch is activated. When the bezel 4 is turned one turn in the ON state in the direction of the arrow C, the tip of the moderation spring 9 passes over the sawtooth (% d l).

Then, when the tip of the moderation spring 9 finishes riding over the sawtooth 4b, the node IW spring 9 strikes the lower surface of the rotating bezel 4. At that time.

The impact force generated is large enough for time case 5.
I, '1ffl Piezoelectric element 1 connected to case 12
This means that the vibration force of 17 should be increased to I5. The electromotive voltage signal generated by the piezoelectric element 10 is then transmitted to a circuit within the timepiece movement via a connection spring 11.

As the bezel 4 rotates while pushing the bezel 4 once in this manner, a signal is transmitted to the circuit due to the vibrating force of the single tooth of the sawtooth 41.

Next, circuit processing means for signals generated in one or more ways will be explained with reference to FIG. , Figure 3(a) is -
FIG. 2 is a stem block diagram regarding a timer function. Third
In Figure (a), 15 is the timer button 6 that is explained in Figure 1.
This is equivalent to a timer switch. Reference numeral 16 denotes a timer reset switch which, when the one-turn bezel 4 explained in FIG. be. 20 is a timer circuit block. The timer circuit block 20 resets the internal timer counter to zero when the ON signal of the timer reset switch 16 is input to the [( terminal), and sets the timer counter to a predetermined value according to the signal input to the -Inlf7f4 terminal.

Switch the timer switch 15 (JN signal to S)/jl
When input to the n child, the timer counter starts counting time.

Also, if a signal is input again to the S terminal while the timer counter is counting time, the opening will be interrupted. When the timer counter finishes counting and reaches zero, a buzzer sounding signal is output from the AL terminal, and at the same time, a buzzer designation signal is output from the terminal. 21
is a buzzer drive circuit that drives the piezoelectric element 10 in accordance with a buzzer sound signal from the timer circuit block 20.

, 23-2'4- 27=2EL 21 30 is an inverter element-25-26 is a NOR gate and one N
OR gates 25-26 constitute an R, -S flip-flop, and 61 is an AND gate. 22
('', when the buzzer designation signal is output from the ■( terminal of the timer circuit block 20), the terminal of the piezoelectric element 10 and the buzzer driver "W
) circuit 21, and is a switching circuit for connecting the piezoelectric element 10 to the capacitor CI when the buzzer designation signal is not output. FIG. 3(b) shows the signal waveform at each point in FIG. 3(21) when the -timer set signal is generated.

Next, I will explain the operation of this system.
As explained in FIG. 2, when the bezel 4 is pressed once, the timer reset switch 16 is turned ON. The ON signal of the timer reset switch 16 is input to the 11 terminal of the timer circuit block 20, and at the same time as the timer counter returns to zero, this ON signal is input to the A N I) gate 31.
1-4), and in that state 1, that is, with the rotating bezel 4 pressed.

When the rotating bezel 4 is rotated, a vibration force is transmitted to the piezoelectric element 10 by the one-mode spring 9 on both sets of sawtooth teeth 41), as explained in FIG. The electromotive voltage of the piezoelectric element 10 generated by the transmission is inputted to the capacitor C1 via the switching circuit 22, and its input waveform becomes the waveform shown in FIG. 3 (1). Next, this signal passes through a bypass filter consisting of a capacitor CI and a resistor It, so that only a signal with low frequency disturbances and one DC component cut off for the temporary case is input to the inverter 26.

The signal input to the inverter 23 is amplified by a filter formed by a resistor R which forms a return loop, and is shaped into a waveform by passing through an inverter 24. The waveform at the output point B of this inverter 24 is shown in FIG. 3(b).
As shown in 13, the signal is a vertically oscillating signal located approximately at the midpoint between the two power supply voltages.

Next, due to the voltage applied to the capacitor C2, only the AC component passes through, and the resistance ratio of the resistor R3 and the resistor R4 becomes 1.
The signal waveforms at the three points lower the normal voltage level to a voltage of N O1 (Q1/Bel, which is the input condition of the C-MOS forming the gate 25).

In other words, the normal voltage level is -5 to the power supply voltage -V.
Convert the level so that the voltage is about /6■.

As a result, the signal waveform input to the -NOR gate 25 becomes as shown in C of FIG. 3(b). And NOI
The R-S flip-flop is set so that the first rising edge signal of the input signal is supplied to the t-gate 25, and l)
The output at point is IK, then the voltage level at point 1 is 1 l/ according to the time constant of resistor R5 and capacitor
Then, the inverter 27 generates an output when the voltage level at the point E reaches the threshold level, and the waveform is shaped by the inverter 28, so that the point E becomes 1.

As a result, the voltage level at point G changes to a level according to the time constant of resistor 1 (6) and capacitor C4, and the voltage level at inverter 29 (1 point) is output when the 71f level at point 1 exceeds the threshold. is generated and shaped into a waveform by the inverter 30, so that each point becomes 1.Then, the output of the inverter 3o enters the reset 6'tA terminal of the gate 26, which constitutes the R-S flip-flop. The signal level at the output point 1) is set to O. At that moment, the 'r1f river at the -1ε point is J) (resistance R5 and capacitor C3
Did you set the time constant to ?

Then, the threshold value of the inverter 27 is exceeded. Therefore, the voltage level at point G is similarly set to 17 and is set to 0 according to the time constant of resistor R6 and capacitor C4, so that the output of Lee inverter 60 becomes 0. Operation of the conversion circuit with the above configuration The output at point VC, J, and S1) becomes a control signal with a -1 pulse waveform. This sawtooth 41) -
・The ili control signal generated by the tooth is -A N D
By supplying the signal to the timer circuit block 20 through the gate 31, the timer hand 2 shown in FIG. 1 rotates by one step.

In this way, the rotary bezel 4 is rotated to supply one pulse of the control signal to the timer circuit block 20 for each sawtooth 4b, and advance the timer hand 2 one step at a time to reach the desired time. When the setting is completed, the timer reset switch 16 is released by stopping the operation of the one-turn bezel 4.

The input of the -AND gate 31 becomes 0 level due to the resistor R7.

As a result, the signal based on the piezoelectric element 10117)ff voltage is no longer supplied to the timer circuit block 20.

Then, when the timer switch 15 is turned ON-j, the timer circuit block 20 starts counting time. When the timer counter reaches zero, the switching circuit 22 connects the buzzer drive circuit 21 and the piezoelectric element 10, and the buzzer drive circuit 21 excites the piezoelectric element 10 in accordance with the buzzer sound signal to sound a buzzer.

〔Effect of the invention〕

As described above, according to the present invention, the timer can be set to a desired time by simply pressing and rotating the rotating bezel 4, which is the easiest to operate for a watch, and is also essential for a timer. Using the signal of the piezoelectric element 1o of the buzzer device - To use it as a setting signal for the timer hand 2 /1. ! I- Since no separate component is required, a simple and inexpensive input means can be provided.

[Brief explanation of drawings]

Figures 1 to 3 show one embodiment of the present invention. Figure 1 is an external plan view of electronic monologue 1 with timer function - Figure 2 (A+ goes to 8- in Figure 1). Cross-sectional view - Figure 2 (Bl
is a sectional view taken along line 13-B in FIG. 1; FIG. 3 (21) is a system block diagram; and FIG. 4... Rotating bezel - 9... Moderation spring. 10...Piezoelectric element. O (Fig.

Claims (1)

[Claims] In an electronic watch that controls functions such as time adjustment using electrical signals, one piezoelectric element and a rotating member having one degree of mode are installed.
An electronic timepiece, further comprising a conversion circuit for converting a signal generated in a piezoelectric element by a moderating force when rotating the rotating member into a control electric signal.