JPS6117428Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electronic timepiece that is an improved electronic timepiece that does not make any sound such as ticking of seconds, so that the electronic timepiece generates a sound so that the movement can be reliably recognized.

Conventionally, in the case of manual winding or automatic winding analog display watches, the seconds are clearly displayed by a vibrating sound, etc., and it has been possible to reliably determine whether the clock is operating or not. However, in electronic watches with digital display or analog display, the ticking of seconds etc. is not displayed with sound, so it is difficult to easily determine whether the clock is operating or not.

In view of this, the present invention uses a simple configuration to clearly display the passage of time by sound, even in the case of an electronic clock in which the passage of seconds is not expressed by sound, so that the operation can be reliably determined. The purpose of this paper is to propose an electronic clock that does this.

An embodiment of the electronic watch of the present invention will be described in detail below with reference to Fig. 1 to Fig. 4. Fig. 1 is an exploded perspective view of the main part of the electronic watch of the present invention, in which a sound generator 2 is embedded and stored inside a housing 1 of an analog display electronic watch. This sound generator 2 can be composed of a reed switch, for example, as shown in the cross-sectional view of Fig. 2 and the partially enlarged view of Fig. 3. The portion 4 of the contact portion 4a, 5a of the pair of magnetic alloy pieces (reeds) 4, 5 facing the glass tube 6 is a reed switch.
b and 5b are made of an acoustically excellent material having a high c/ρ value (c is the sound velocity and ρ is the specific density), such as gold,
The magnetic alloy pieces 4 and 5 are sealed in a glass tube 6 which is filled with an inert gas such as helium or argon.
Reference numeral 7 denotes a coil (soulinoid) that encircles the glass tube 6. When a direct current flows through the coil 7, a magnetic flux passes through the magnetic alloy pieces 4 and 5, which are magnetic bodies, and a magnetic field is formed around the outer periphery of the coil 7, so that the contact portions 4a and 5a of the magnetic alloy pieces 4 and 5 are attracted to each other and come into contact. When no magnetic flux is generated, the contact portions 4a and 5a are held together by the elastic force of the springs of the magnetic alloy pieces 4 and 5.
5a is slightly separated.

FIG. 4 shows a drive circuit for the sounding body 2. As shown in FIG. 8 is a crystal oscillator as an oscillation oscillator that is the driving source of an electronic watch, and its oscillation output is a frequency division ratio of 1/n (n is an arbitrary number determined by the oscillation frequency of the crystal oscillator), which outputs seconds. ) A first counter 9, a second counter 10 with a frequency division ratio of 1/60 that outputs minute units, and a third counter 11 with a frequency division ratio of 1/60 that outputs time units, and the frequency is divided. Outputs in units of seconds, minutes, and time are respectively supplied to input terminals of a display circuit within the electronic timepiece. On the other hand, the second output of the first counter 9 is amplified by the amplification circuit 12 and supplied to the coil 7 of the sounding body 2, which drives the sounding body 2 and generates a sound every second to represent the passage of time. It can be done. Note that a part of the oscillation output of the oscillation resonator 8 is supplied to the fourth counter 13 and frequency-divided, and the frequency-divided output is supplied as the gain control terminal voltage of the amplifier circuit 12. The volume of the sounding body 2 can be adjusted arbitrarily.

Incidentally, in the case of an analog electronic timepiece, the sounding body 22 is driven by the driving method shown in FIG. The oscillation output of the oscillation oscillator 8 is detected by the first counter 9
The frequency is divided into a frequency-divided output in units of seconds, and this frequency-divided output is amplified by an amplification circuit 12 and supplied to a coil 15 of a pulse motor 14. A part of the output of the oscillating oscillator 8 is frequency-divided by a fourth counter 13, and is supplied as a gain control terminal voltage to the amplification circuit 12 of the frequency-divided output, so that the volume of the sounding body 2 is adjusted. will be accomplished. In this pulse motor 14, a part of the opposing inner surfaces of a pair of stator legs of a U-shaped core 15 form one surface of a cylinder, and a rotor 16 is disposed between these inner surfaces. The rotor 16 has a second hand 17 that displays analog seconds on the display surface of the clock.
is installed. A reed switch 3 as a sounding body is attached to the back of the U-shaped core 15 or to the opening of the pair of legs as shown in FIG. At the same time, the magnetic flux leaking from the legs passes through the magnetic alloy pieces 4 and 5 of the reed switch 3, causing their contact parts 4a and 5a to come into contact, and this contact sound clearly indicates the passage of each second.

Note that the sounding body 2 has magnetic alloy pieces 4,
It is also possible to arrange a contact piece in the resonator without arranging the contact piece 5.

Thus, according to the electronic watch of the present invention, the sounding body driven by the oscillation output of the oscillating oscillator is housed inside the housing, so that, for example, in an electronic watch with an analog display or a digital display, the The progress is clearly displayed by the sound of the sounding body, and it is suitable for use in wristwatches, clock radios, etc., and the operation can be reliably recognized and the usability can be improved.

Furthermore, the reed switch as the sounding body 2 can be easily mass-produced because the mass-production method has been established, and it can be manufactured at low cost since contact material may be omitted.

Further, the sounding body may be activated when desired, so that it is activated only when sleeping, or it may be configured to generate a sound that has a calming effect, such as raindrops.

Alternatively, the sounding body 2 may be arranged so that the contact portions 4a and 5a of the magnetic alloy pieces 4 and 5 are brought into indirect contact by energizing another coil to move the magnet without supplying direct current to the coil 7. .

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the essential parts of an embodiment of the electronic timepiece of the present invention, Fig. 2 is a front view of the sounding body, Fig. 3 is an enlarged view of the essential parts of the sounding body, and Fig. 4 is the driving circuit of the sounding body. figure,
FIG. 5 is a circuit diagram of another embodiment of the present invention, and FIG. 6 is a front view of another embodiment of the present invention. 1 is a housing of an electronic watch, 2 is a sounding body, and 8 is an oscillating vibrator.

Claims (1)

[Scope of utility model registration request] Oscillation vibrator.In the vicinity of a coil that is energized by a signal related to the oscillation output, or in the vicinity of a magnet driven by the coil, even if it is outside of each opposing part, the part facing the casing can be By disposing a reed switch-shaped sounding body having a pair of magnetic metal pieces made of a material with a high oscillation rate, and driving the magnetic metal pieces with magnetic flux generated from the coil or the magnet, the oscillation vibrator can be activated. An electronic timepiece that reports the operating status of a time display section that is displayed using a signal obtained by frequency-dividing an oscillation output.