JPS6040625B2 - polyphonic chime - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-tone chime that can selectively emit two or more different tones using individual push button switches.

Conventionally, when constructing a multi-tone chime, two push-plow switches 1 and 2 are installed in a push-button switch body 5, as shown in FIG.
and chime blocks 19, 19 corresponding to the push nail switches 1, 2, respectively, are disposed within the chime body 11.
are provided separately, and two-wire wiring 12,
12, 12', 12', and therefore the total number of wires between the push nail switch 5 and the chime body 11 is 4, and the number of wires is large and the cost required for wiring construction is high. There was a problem. Therefore, as another conventional example, as shown in FIG. 2, a sound generation circuit 8 is provided in the chime body 11, which outputs different sounding signals depending on whether the input is at the first input terminal or the second input terminal. , one end of the first and second push sword switches 1 and 2 on the side of the push fishing switch body 5 are inputted to the first and second input terminals of the sound generating circuit 8 on the side of the chime body 1 1, respectively. Although such a configuration has been proposed, even in this conventional example, the total number of wires between the push nail switch body 5 and the chime body 11 is three, and the most popular and cheapest parallel cord is used. Therefore, there was a problem that wiring construction costs were high.

The present invention has been provided in view of the above-mentioned points, and the wiring between the push-pull switch body and the chime body is made of two-wire wiring, and the push-button switch operated on the push-pull switch body side is selected. To provide a multi-tone chime which can emit different ringing tones on the chime body side, and can also display the position using a light emitting diode on the push button switch body and confirm the operation when the push button switch is operated. This is the purpose.

An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 3 shows an example according to the first embodiment of the present invention, in which the pusher switch body 5 has a resistor in the circuit of the first pusher switch consisting of the first pusher switch 1 itself. 3, a light-emitting diode 4, and a normally closed second push-plow switch 2 connected in parallel. one end of each is connected. Here, the above-mentioned push button switch body 5 is, for example, as shown in FIG. A second peg switch, 2, which is an attached hidden peg, is provided, and is used for the purpose of making it possible to distinguish on the chime body 11 side between a notification due to a visitor and a notification due to a family member returning home. . Next, on the side of the chime body 11, a crab source 7 made of a battery, a sound generating circuit 8 similar to the conventional example shown in FIG. It is constituted by a speaker 9 driven by the output of the middle circuit 20, and a detection circuit 10 that determines and detects which of the first and second push switches 1 and 2 on the push button switch body 5 side has been operated. . Here, by inputting a low level signal to either the first or second input terminal, the sound generating circuit 8 outputs a green signal of each different ringing sound corresponding to the input terminal on the signal input side. It turns out. The detection circuit 10 includes a current detection resistor 13 inserted in series on one side of the two-wire wiring 12, and a second detector 1 comprising transistors 21, 22, and 23.
5, and a first detection section 14 consisting of a resistor 24 and transistors 25 and 26. Second detector 15
The transistor 21 detects the voltage across the resistor 13, and the voltage is amplified and phase inverted by the transistors 22 and 23 and inputted to the first input terminal of the sound generating circuit 8. The operation of the second push button switch 2 is identified by determining that the voltage drop across the resistor 13 has disappeared. That is, when the second push button switch 2 is operated, this push button switch 2
is opened, the current flowing in the two-wire wiring 12 disappears, and therefore the voltage drop in the current detection resistor 13 also disappears. This is detected by the second detection unit 15, and the second push pin is It identifies the operation of switch 2. On the other hand, when the first peg switch 1 is connected, the two-wire wiring 12, 12 is short-circuited by this peg switch 1, and therefore the two-wire wiring 12, 12 terminal on the chime body 11 side There is almost no voltage between the two. Here, in the first detection section 14, the transistor 25 monitors the voltage between the two-wire wiring 12, 12 via the resistor 24, and when this becomes no voltage, the A low level signal is input to the second input terminal, and a corresponding ringing signal is output when the first push spade switch 1 is operated. FIG. 5 shows an example according to the second embodiment of the present invention. The push-button switch body 5 is connected to a circuit of a first push-button switch 1 constituted by a normally closed first push-button switch 1 and a normally closed second push-button switch 2 in which a light emitting diode 4 is connected in parallel. 3 are connected in series. The chime body 1 side has the same structure as the embodiment shown in FIG. 3, except that the structure of the detection circuit 10 is different.
Thus, the detection circuit 10' is configured to include a current detection resistor 13 inserted and connected in series to the two-wire wiring 12, and first to fourth comparators 16, 17, 18, and 27. Therefore, the first comparator 16 has a resistor 28,
29, the divided voltage of the power supply voltage is used as a reference voltage and is compared with the voltage at the end of the push spade switch body 5 side of the resistor 13 for current detection, and the push spade switches 1 and 2 are in the open state. Sometimes, when the push nail switch body 5 is in a disconnected state, this is detected and the output is set to a low level. The second comparator 17 is a resistor 30, 31
The resistor 13 is set as the reference voltage by dividing the power supply voltage by
The voltage is compared with the voltage at the side end of the push-plow switch body 5, so that only the first push-button switch 1 is turned on and the second push-button switch 1 is turned on.
When the push nail switch 2 is in the OFF state, this is detected and the output becomes low level. The third comparator 18 connects the outputs of the first and second comparators 16 and 17 in common and connects this to the positive electrode of the power supply 7 via the resistor 32.
The common output of 7 is compared with the divided voltage of resistors 30 and 31, and when both the first and second comparators 16 and 17 are not in output operation (not at low level), The output is at a low level, and the configuration is such that it can identify and detect the state in which the first push button switch 2 is off and the second push button switch 2 is on.
The low level output of the comparator 18 is inputted to the second input terminal of the sound generating circuit 8 as an operation detection signal of the second presser 0 switch 2. The fourth comparator 27
It has the same input as the comparator 17 and performs substantially the same output operation, so the low level output of the four comparators 27 is used as the operation detection signal of the first pusher switch 1 of the sound generating circuit 8. It is input to the first input terminal.
Note that the two-wire wiring 2 when the first pushbutton switch 1 is closed,
12 voltage [approximately ○V] is V, and the above voltage when the second pushbutton switch is closed [approximately VCCX; Chapter Z, where Vcc is the power supply, R, is the resistance value of resistor 3, and R2 is the resistance value of resistor 13] is V2, the above voltage when the first and second pusher switches 1 and 2 are open [abbreviated (Vcc-VD); 1+VD, where V〇 is the voltage drop of the light emitting diode 4] V3, the above voltage when the push button switch body 5 is not connected [mother each Vc
c] is set to V4, the divided voltage of resistors 28 and 29 is set to Vo. - If the divided voltages of the resistors 30 and 31 are Vo2, these divided voltages Vo.・Vo2 is V2<Vo. <V
4, V<Vo2<V2. Further, FIG. 6 shows another embodiment of the push button switch body 5, and by selectively operating the first and second push spade switches 1 and 2, two types of ringing sounds on the 11 legs of the chime body are selected. It is designed to make a sound and notify two types of information. Since the present invention is configured as described above, two types of chime sounds can be sounded on the chime body side by selecting the operation of the pusher switch on the pusher switch body side. First, it is possible to conduct two-wire wiring between the push nail switch body and the chime body, which has the effect of significantly reducing the cost required for wiring construction. This has the effect of being able to display information and confirm the operation when operating the push button switch.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a conventional example, FIG. 2 is a circuit diagram of another conventional example, FIG. 3 is a circuit diagram of an embodiment of the present invention, FIG. 4 is a perspective view of the same push-pin switch body, and FIG. FIG. 5 is a circuit diagram of another embodiment of the same as above, and FIG. 6 is a perspective view of another embodiment of the same push-button switch body, in which 1 is a first push-button switch, and 2 is a second push-button switch. , 3 is a resistor, 4 is a light emitting diode, 5 is a push spade switch body, 7 is a power supply, 8 is a sound generation circuit, 9 is a speaker,
10 is a detection circuit, 11 is a chime body, 12 is a two-wire wiring, 13 is a resistor for current detection, 14 is a first detection section, 15 is a second detection section, 16 is a first comparator, 17 is a second Comparator 18 is a third comparator. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

[Scope of Claims] 1. A first push button switch circuit and a second push button switch circuit including a resistor connected in series are connected in parallel, and a light emitting diode which is turned off by the operation of the second push button switch is connected to the first push button switch circuit. The second push button switch circuit includes a push button switch body, a power supply, a sound generation circuit, and a speaker, and detects which of the first push button switch and the second push button switch is operated and activates the sound generation circuit. It consists of a chain body including a detection circuit for controlling, and two wires wired between the push button switch body and the chain body, and the position of the push button switch body is always indicated by lighting the light emitting diode. A multi-tone chime characterized in that a light emitting diode is turned off by operating a second push button switch to confirm the operation. 2 The first push button switch is configured as a normally open switch, and the circuit of the second push button switch is configured as a series circuit of a resistor, a light emitting diode, and a normally closed second push button switch, and two-wire wiring is installed on the side of the main body of the chain. A current detection resistor is inserted in series with the current detection resistor, and the current detection resistor detects that the voltage between the two wires has become zero on the push button switch body side, and identifies the operation of the first push button switch. The present invention is characterized in that a detection circuit is constituted by a detection section that detects the disappearance of the voltage drop in the current detection resistor and a second detection section that detects the operation of the second push button switch. A polyphonic chime according to claim 1. 3. A first pushbutton switch circuit consisting of a normally open first pushbutton switch, and a second pushbutton consisting of a normally open second pushbutton switch having light emitting diodes connected in parallel and connected in series to a resistor. A push-button switch body is formed by connecting the switch circuit in parallel, and a current detection resistor inserted in series with the two-wire wiring on the circuit body side and the voltage between the two-wire wiring when both push-button switches are not operated are detected. a first comparator for identifying;
a second comparator that identifies the voltage between the two wires when only the first pushbutton switch is operated; and a third comparator that detects the operation of the second pushbutton switch when there is no output from both the first and second comparators. 2. The polyphonic chime according to claim 1, wherein the detection circuit is constructed by the following.