JPS6213195Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric megaphone with a signal sound used for signaling purposes such as in competitions.

Traditionally, a pistol sound was used as a signal at competitions, etc., but when you hear this sound and start a competition or start timing with a stopwatch,
Disadvantages include the fact that the time difference in the propagation of sound through the air can cause positional inequality among competitors and timing errors, and it is unsuitable for hearing-impaired competitors. It was hot. Furthermore, a starter pistol device is known in which a light emitting device and a sounding device are housed separately in separate independent cases, and both light and sound are emitted simultaneously in conjunction with each other by operating a trigger switch (for example, (Refer to Utility Model Application Publication No. 135074/1974). However, if the light emitter and the sound generator are housed in separate independent cases, there will be a distance difference between them, making it impossible to perfectly match the radiation axes of light and sound. It was unavoidable that it would be misaligned. Furthermore, when using light and sound as a starting signal for a plurality of competitors, it has not been possible to cope with the case where it is required that the radiation axes (radiation directions) of both are made to coincide. Furthermore, it is conceivable to integrate the light emitter and the sound generator, but even if they are simply combined into one, it is difficult to combine the emission directions coaxially, and the overall shape becomes larger. There was a drawback.

This invention eliminates the drawbacks of the prior art by coaxially sending out a signal light at the same time as the signal sound, and will be explained below based on the embodiments shown in the drawings.

Fig. 1 is a partially cutaway side view of an electric megaphone based on this invention, and Fig. 2 is a circuit block diagram of the same. 4 and a handle 5 are respectively attached, and the inner tube 6 of the speaker 1 is located at the center of the front surrounded by the outer tube 2. Main case 3
Inside, there are a power supply battery 7, an amplifier circuit 8, a signal sound generation circuit 9 for generating a signal sound signal, as shown in FIG.
A light emitting circuit 10 for generating a signal light, etc. are housed, a trigger switch 11 is installed between the power supply battery 7 and the amplifier circuit 8, and a trigger switch for microphone broadcasting and for signal tone generation is also installed between the power source battery 7 and the amplifier circuit 8. A changeover switch 12 for switching the use of the switch 11 is connected to each switch. Connected between the changeover switch 12 and the signal sound generation circuit 9 are a signal sound activation switch 13 and an indicator light 14 that lights up when the changeover switch 12 is closed to generate a signal sound and emit light. The light emitting circuit 10 increases the power supply battery pressure.
It includes a charger 15 with a built-in DC/DC converter, a charging/discharging capacitor 16, a flash lamp 17, and a light emitting switch 18 connected between this and the capacitor 16. The light emitting switch 18, the signal sound activation switch 13, and the trigger switch 11 are opened and closed in conjunction with each other.

In FIG. 1, a flash lamp 17 is attached to the tip of the middle tube 6 surrounded by a reflector 19 and a lens 20. As shown in FIG. Further, the indicator light 14 is attached below the volume 21 on the rear side of the base of the handle 5.

An example of the operation of the electric megaphone configured as described above will be explained. Each switch 11-13,
2, in which the switch 18 is open, when the selector switch 11 is closed, power is supplied to the amplifier circuit 8 and the capacitor 16 is charged in a short time, and then the trigger switch is turned on. 11 is closed, the signal sound start switch 13 and the light emitting switch 18 are also closed, the signal sound signal is amplified and amplified by the speaker 1, and the flash lamp 17 momentarily emits light due to the discharge of the capacitor 16. If such a signal light is used in conjunction with a signal sound to initiate the start or start timing at a competition, etc., compared to when the signal sound is used alone, it may cause positional inequality for competitors and timing problems. In addition to almost eliminating errors, it can also be used by hearing-impaired competitors, and the signal light can be confirmed by the subsequent signal sound. Furthermore, since the flash lamp 17 is attached to the tip of the middle tube 6 located at the center of the front surface of the speaker 1, the sound from the speaker 1 and the light from the flash lamp 17 are radiated coaxially. The electric megaphone is compactly constructed.

As mentioned above, according to this invention, a signal light is sent simultaneously and coaxially with the signal sound, so when used as a signal at competitions, etc.
The occurrence of positional inequalities and timing errors can be extremely suppressed, and an electric megaphone that can be used even by hearing-impaired athletes can be provided. Furthermore, it is possible to perfectly match the radiation direction of the sound emitted from the speaker and the light emitted from the flash lamp, and the flash lamp can be incorporated compactly into one, allowing for signal sound and signal light. It is possible to provide a compactly constructed electric megaphone capable of coaxially radiating.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view of an electric megaphone embodying this invention, and FIG. 2 is a circuit block diagram of the same. DESCRIPTION OF SYMBOLS 1...Speaker, 5...Handle, 6...Middle tube, 7...Power battery, 8...Amplification circuit, 9...Signal sound generation circuit, 10...Light emitting circuit, 11...Trigger switch, 12 ...Selector switch, 13...Signal sound activation switch, 15...Charger, 16...Capacitor, 17...Flash lamp, 18...
Light emitting switch, 19...reflector, 20...lens.

Claims (1)

[Scope of utility model registration request] A signal generating circuit for generating a signal sound, a signal sound activation switch, a speaker having a central tube located at the center of the front, and a flash lamp attached to the tip of the central tube for generating a signal light. An electric megaphone comprising: a light emitting switch; and a structure in which a signal light and a signal sound are simultaneously transmitted by opening and closing the light emitting switch and the signal sound activation switch in conjunction with each other.