JPS6239439Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of the chime.

Conventionally, there are various types of chimes, but in all of them, the volume of the ringing tone emitted from the chime body remains constant regardless of the number of times the ringing switch is turned on. Therefore, if the listener is not near the installation location of the chime main body, there is a problem that even if the ringing tone is repeatedly emitted, the listener will be distracted and miss the ringing tone.

This idea was made in view of the above circumstances,
The system is designed so that the volume of the ringing tone increases as the number of times the ringing switch is turned on increases, thereby improving the alertness.

An embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, SW is a call switch connected in series to the DC power source E, such as a self-resetting push button switch, and SLC is a call signal identifying means for identifying the number of times the call switch SW is turned on. The first flip-flop circuit _FF1 which is set by the fall of the call signal a from SW and this first flip-flop circuit
A second flip-flop circuit FF ₂ connected in series to FF ₂ , both flip-flop circuits FF ₁ and FF ₂ mentioned above.
It is composed of R ₁ and R ₂ ( _{R 1 >} R _{2 )} connected to each output _of It is set to emit different types of output signals depending on the number of times the SW is turned on.

ISO is a sounding means that receives the output of the above-mentioned identification means SLC and generates sound at a volume corresponding to different types of output signals.For example, the timer circuit TMC is activated by the turning-on operation of the above-mentioned call switch SW, and the set time of the timer circuit TMC. Low frequency oscillation circuit that operates only in
OSC, widening transistor TR and speaker SP
It is composed of etc. RSW is a reset switch for each of the flip-flop circuits FF ₁ and FF ₂ described above, and by turning on this reset switch RSW, each of the flip-flop circuits FF ₁ and FF ₂ described above is reset.
are all reset and return to their initial state.

Next, the operation of the above configuration will be explained with reference to FIG.

First, when the call switch SW is turned on for the first time, the fall of the call signal a from the switch SW activates the first flip-flop circuit.
The set output _b1 of _FF1 becomes "H" (FIG. 2A). The "H" output of the first flip-flop circuit _FF1 is input to the second flip-flop circuit _FF2 , but until this "H" output signal falls, the output _b2 of the second flip-flop circuit FF2 is input to the second flip-flop circuit _FF2 .
remains at "L" (Figure 2B). Therefore, an output "Hr _{1 "} corresponding to the resistor R ₁ connected to the first flip-flop FF 1 is generated at the connection point P between the diodes D ₁ and D ₂ .

On the other hand, when the call switch SW is turned on, the timer circuit TMC is activated for a certain period of time T (the second
During this period only, the oscillation output C (for example, a single wave of 1 KHz) from the low frequency oscillation circuit OSC is input to the transistor TR (Fig. 2E). The oscillation output C is amplified by the transistor TR, but since this amplification corresponds to the output "Hr ₁ " of the connection point P, the output d from the speaker SP also corresponds to the "Hr ₁ ". is output (Fig. 2F).

Then, when the call switch SW is turned on for the second time, the first flip-flop circuit is turned on.
The output _b1 of _FF1 changes from "H" to "L" (Fig. 2A). Therefore, the second flip-flop circuit
FF ₂ changes from "L" to "H" (FIG. 2B), and an output "Hr ₂ " corresponding to the resistor R ₂ is generated at the connection point P mentioned above. This output “Hr ₂ ” is R ₁ > R ₂
Because of the relationship, it becomes larger than the above-mentioned "Hr ₁ ". Therefore, the speaker SP produces sound at a louder volume than when the paging switch SW is turned on for the first time.

Furthermore, when the call switch SW is turned on for the third time, the first flip-flop circuit
As with the first time, the output b ₁ of FF ₁ changes from "L" to "H" at the fall of the calling signal a from the switch SW. At this time, the second flip-flop circuit _FF2 remains at "H" unless the output _b1 of the first flip-flop circuit _FF1 changes from "H" to "L". Therefore, since an output of "Hr ₁ "+"Hr ₂ " is generated at the connection point P, the ringing tone is emitted from the speaker SP at an even louder volume than the second time. In this way, by increasing the volume each time the ringing switch SW is turned on, it is possible to prevent the user from missing the ringing tone. By turning on the reset switch RSW, the first
Since the second flip-flop circuit _FF1 is reset, if a display circuit (not shown) is connected to this reset switch RSW, the display circuit will indicate that the ringer has heard the ringing switch.
You can notify the SW side. In other words, if the reset switch RSW is turned on at an appropriate time, such as after a household member hears the ringing tone, the flip-flop circuits FF ₁ and FF ₂ will be reset and returned to their initial state, so that new visitors may arrive after a long interval. Even if the visitor turns on the call switch SW, the volume of the ring tone increases as the number of times the call switch SW is turned on increases, as in the case of the previous visitor.

By the way, by adding another flip-flop circuit following the flip-flop circuits FF ₁ and FF ₂ , the sound can be further increased in accordance with the number of times the call switch SW is turned on.

Furthermore, in the above embodiment, the volume was increased by changing the power supply voltage applied to the speaker SP, but the speaker SP is directly connected to the DC power supply E, and the outputs of the flip-flop circuits FF ₁ and FF ₂ are connected to the low frequency oscillation. circuit
By changing the base current applied to the transistor TR as an operating power source for the OSC, the amplification degree of the transistor TR can be changed to change the volume.

Furthermore, the above embodiment has a low frequency oscillation circuit.
Although the OSC only emits a single sound (for example, beep), it is also possible to connect the oscillation circuit OSC in multiple stages to generate a compound sound (beep, poh) and increase the volume of this output. Alternatively, instead of the oscillation circuit OSC shown in Fig. 1, a large-scale integrated circuit (LSI) that synthesizes the guest's voice can be used to increase the volume of the voice according to the number of times the call switch is operated. be.

Figure 3 shows another embodiment, in which the sounding means ISO is excited by the cocoil DL, the plunger PG, and the sound plate.
It consists of SB ₁ , SB _2, etc., and further includes the above-mentioned identification means.
The SIC is composed of a cam CM driven by a motor M, a switching switch VSW which is sequentially controlled to open and close by the cam CM, resistors _R1 , _R2 , diodes _D1 to _D3, etc. In this case, the above call switch SW
Since the cam CM rotates intermittently and the changeover switch VSW is switched sequentially when the switch is turned on,
The excitation force by the excitation coil DL is also increased each time the above switch SW is turned on, and the instantaneous force when the plunger PG hits is increased, thereby causing the sound plates SB ₁ ,
You can definitely hear the ringtone, which is the vibration of the SB ₂ .

As described above, this invention is configured so that the volume of the ringing tone increases as the number of times the ringing switch is turned on increases, so it is possible to provide a chime whose ringing tone can be reliably heard.

[Brief explanation of the drawing]

FIG. 1 is a circuit configuration diagram showing an example of a chain according to this invention, and FIG. 2 is a signal waveform diagram of the same chain.
FIG. 3 is a circuit configuration diagram showing another embodiment. SW...Call switch, SLC...Call signal identification means, ISO...Sound generation means.

Claims (1)

[Scope of utility model registration request] A calling signal identifying means SLC that identifies the number of times the calling switch SW is turned on from the calling signal from the calling switch SW and generates different types of output signals according to the number of operations, and different types of output signals from the identifying means SLC. A chime equipped with a sounding means ISO whose volume is controlled to increase in accordance with the output order of the sounds.