JP3058722U - Mecha chime notification device - Google Patents

Abstract

(57) [Problem] To provide a mechanical chime with extremely excellent sound quality and a mechanical chime sound notification device capable of processing the mechanical chime sound in an analog manner and sounding it at an arbitrary place. A mechanical chime that mechanically emits a chime sound by electromagnetically operating a movable metal piece by turning on and off a switch, a pickup coil for detecting an operation state of the movable metal piece, and The apparatus includes a chime sound output device 6 for amplifying an output signal and outputting the amplified signal through a speaker, and a control signal forming unit 7 for forming a control signal for controlling another operation unit such as a radio when a chime sound is emitted.

Description

[Detailed description of the invention] [Technical field to which the invention belongs]

 The present invention relates to a so-called mechanical chime notification device that mechanically emits a chime sound.

[Prior art]

 Normally, a chime device attached to an entrance or the like is composed of a switch, an electronic sound forming unit for forming a chime electronic sound, and a speaker as shown in FIG. An electronically synthesized chime is emitted from the speaker. The chime electronic sound is disclosed, for example, in Japanese Utility Model Laid-Open No. 1-149186 and Japanese Utility Model Publication No. 4-38621. A mechanical chime that mechanically emits a chime sound is also used.However, since this mechanical chime does not perform electronic processing, when it is installed at the entrance, for example, when a switch is pressed, A chime sounds at the entrance.

[Problems to be solved by the invention]

 Among the above conventional devices, some of the devices that emit an electronic chime sound use an oscillator, a filter, a waveform memory, etc., but all emit only a simple sound or synthesized sound by electronic waveform manipulation. It is not possible to synthesize a very unpleasant sound, such as a chime sound of a mechanical chime, which has a sharp rise, a long decay time of the sound, and a subtle change in the harmonic composition. Almost impossible. On the other hand, there is no problem with the sound quality of the mechanical chime, but since the sound is generated only at the location where the mechanical chime is located, it is not possible to notify the chime sound to the necessary room etc. when the indoor is large. There was a problem. It is an object of the present invention to provide a mechanical chime with extremely excellent sound quality and a mechanical chime sound notification device which can process the mechanical chime sound in an analog manner and sound it at an arbitrary place.

[Means for Solving the Problems]

 The invention of claim 1 provides a mechanical chime that mechanically emits a chime sound, a sensor that electromagnetically detects the mechanical chime sound, a chime sound output device that amplifies the sensor output and outputs the indoor sound with a speaker. A control signal forming section for forming a control signal for controlling another operation section when a chime sound is emitted. According to the above configuration, since the sound of the mechanical chime is output as an analog signal from the speaker installed at an arbitrary place indoors, it is possible to produce a high-quality mechanical chime sound at each speaker installation location. . In addition, since a control signal for controlling other operation units is generated when a chime sound is output, for example, when music is played from a radio or a CD player, the music is muted by the control signal. And the chime sound can be reliably notified. Since the mechanical chime has a structure that emits sound when a metal piece operates and comes into contact with another metal plate, the operation of this metal piece (including vibration when the metal piece comes into contact with the metal plate) is picked up. By detecting with a coil, it is possible to detect the operation of the metal piece, that is, the mechanical chime sound from the outside without giving any structural measures to the mechanical chime. Detecting a chime sound with a microphone has the disadvantage that the service line cannot be lengthened because the microphone impedance is usually high. If the operation of the movable metal piece is detected by the pickup coil as in the invention of the second aspect, the impedance can be reduced and the intrusion of noise from the outside can be prevented.

[Embodiment of the invention]

 FIG. 1 is a schematic block diagram of a mechanical chime notification device according to an embodiment of the present invention. The mechanical chime includes a step-down transformer 1 for stepping down an AC power supply, a switch 2 connected in series to this output, an electromagnetic coil 3 through which an AC current flows when the switch 2 is turned on, and an AC current flowing through the electromagnetic coil 3. And a metal plate (not shown) with which the metal piece contacts when the movable metal piece 4 operates. When the switch 2 is turned on, a current flows through the electromagnetic coil 3 and the movable metal piece 4 rotates in the direction of the arrow a, and hits a metal plate (not shown) to become “pin”. The movable metal piece 4 returns to its original position (rotates in the direction of the arrow b) by the operation of the spring (not shown), and hits another metal plate (not shown), thereby forming a “pawn”. That is, by turning the switch 2 on and off, a “ping-pong” is achieved. 5 is a pickup coil attached to the mechanical chime. The pick-up coil 5 detects the change when the movable metal piece 4 rotates in the a or b direction, and furthermore, the movable metal piece 4 rotates in the a or b direction to hit a metal plate (not shown). The vibration at the time is also detected. Since the pickup coil 5 detects a change in magnetic flux, it can be attached to the outside of the housing of the mechanical chime, so that it is not necessary to take special structural measures on the mechanical chime itself. That is, the pickup coil 5 may be simply fixed outside the existing mechanical chime housing. Needless to say, it is desirable to mount the pickup coil 5 at a position as close as possible to the movable metal piece 4. The detection signal of the pickup coil 5 becomes an analog signal, and this signal is output to the chime sound output device 6 and the control signal forming unit 7 installed indoors. The chime sound output device 6 merely amplifies the analog signal and outputs the amplified signal to the speaker, and does not require any special device. The control signal forming unit 7 forms a control signal for controlling an operation unit such as a radio or a CD player based on the analog signal. In this case, the control signal only needs to be turned on or off, so it is only necessary to turn on when there is an output from the pickup coil 5 and to turn off when there is no output. That is, normally, it is only necessary to output a signal obtained by rectifying the analog signal as a control signal, so that the control signal forming unit 7 does not need to be a special circuit. FIG. 2 shows an example of a more specific circuit configuration of the apparatus shown in FIG. In the figure, A to D indicate indoor rooms, respectively. In the room A, a main body control unit is arranged. Further, speakers are arranged in each of the rooms B to D. The analog signal detected by the pickup coil 5 is impedance-matched by an impedance matching circuit of C1 and R1, and is amplified to an appropriate level by an amplifier 10. This signal is further amplified by an amplifier 11, and is applied to a speaker in each room. Output as a chime sound signal. The above circuit is a circuit corresponding to the chime-on output device 6 in FIG. The output of the amplifier 10 is rectified by a two-stage amplifier circuit composed of amplifiers 12 and 13. When there is a signal from the pickup coil 5, the signal is converted into a binary signal of HIGH when there is no signal, and is outputted to the CPU 14 when there is no signal. . When the signal is HIGH, the CPU 14 outputs MUTE (mute) to the radio circuit 15 as a control signal. The radio circuit 15 sends its output signal P to the amplifier 11 on condition that the switch is turned on. When the MUTE signal is received, the output signal P is attenuated to a signal of a very small level. As a result, when the switch 2 of the mechanical mechanism installed at the entrance or the like is turned on and off, the speakers in the rooms A to D mute the radio sound that has been sounding so far, and at the same time, “Ping-pong”. The mecha chime sounds. The ON / OFF timing of the MUTE signal is not the ON / OFF timing of the switch 2 but the chimp sound of the “ping pawn” and the radio output in order to automatically match the actual “ping pawn” sounding start timing and sounding stop timing. Do not overlap. In the above embodiment, the control signal from the CPU 14 is output to the radio circuit 15, but any audio device such as a CD player that emits sound may be used. If this device is integrated with the intercom device, it will be more convenient.

[Effect of the invention]

 As described above, according to the present invention, a mechanical chime sound with excellent sound quality can be output from any indoor speaker, and when the chime sound comes out, another operating unit such as a radio is automatically performed. Can be controlled synchronously, so that a high-quality and easy-to-use notification device can be provided. In addition, by using a pickup coil to detect the mechanical chime sound, it can be easily attached to a conventional mechanical chime device without special structural measures, and the length of the lead from the pickup coil can be increased. However, there is no particular problem such as sound quality deterioration.

[Brief description of the drawings]

FIG. 1 is a block diagram of a mechanical chime notification device according to the present invention.

FIG. 2 is a more specific circuit configuration diagram of the notification device.

FIG. 3 is a configuration diagram of a conventional notification device.

[Explanation of symbols]

 2-switch 4-movable metal piece 5-pickup coil

Claims (4)

[Utility model registration claims] A mechanical chime that mechanically sounds a chime sound; a sensor that electromagnetically detects the mechanical chime sound;
A chime sound output device that amplifies a sensor output and outputs the output with an indoor speaker, and a control signal forming unit that forms a control signal that controls another operation unit when a chime sound is output, . 2. The mechanism chime notification device according to claim 1, wherein the sensor is a pickup coil that detects an operation state of a movable metal piece of the mechanism chime. 3. The mechanism chime notification device according to claim 1, wherein the other operation unit is an audio device such as a radio or a CD player. 4. The mechanism chime notification device according to claim 1, wherein the indoor speaker is provided at a location different from a location at which the mechanical chime is provided.