JPH0224665Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a direction indicating circuit for an automobile, and more particularly to a hazard/direction indicating circuit that can issue a hazard instruction and cancels the hazard instruction by a direction indicating operation.

Conventionally, hazard signals that flash intermittently to notify following vehicles when a car has stopped due to a breakdown have a circuit separate from the direction indicator light, or
Alternatively, a method using a direction indicating circuit has been proposed. However, in both cases, the problem was that the vehicle continued to drive without turning off the hazard signal after using it.

The present invention connects the output terminal of a flasher whose input terminal is connected to a power supply to the input terminal of a left-turn and right-turn two-way indicator light whose output terminal is grounded, and connects the output terminal of the flasher and the two-way indicator light. a direction indicator circuit having a direction indicator switch that is grounded between the input terminal of the indicator and selectively connects the input terminal to either one of the indicator lights or a neutral position that is not grounded to any of the indicator lights; The output terminal of a normally open switch that is grounded to the power supply is connected to the input terminal of a solenoid whose output terminal is grounded, and a switch is connected in parallel between the input and output terminals of the normally open switch and is closed only when the solenoid is energized. 1 switch,
and a hazard indicating circuit having a second switch connected in parallel to the direction indicating switch and closed only when the solenoid is energized, the hazard indicating circuit being connected between the output terminal of the first switch and the input terminal of the solenoid. The present invention is characterized in that a third switch interlocked with the switch is provided, and the third switch is configured to close and energize the solenoid only when the direction indicating switch is in the neutral position.

Hereinafter, a detailed explanation will be given using an example shown in the drawings.

In this figure, the negative terminal 1 of the battery power supply E is grounded, and the positive terminal 2 passes through the engine key switch S _E and the switching contact S ₂ connected in series with the engine key switch S _E , and then passes through the power terminal 3 of the flasher 3.
connected to a. The blinker 3 is a circuit interrupter made of a known technique, and an output terminal 3b is connected to a contact 3c of a direction indicator switch _ST .
The contact piece of the direction indicating switch _ST is adapted to be selectively connected to any one of three contacts C ₁ , N and C ₂ . The contact N is located at a neutral position, and the first contact C ₁ and the second contact C ₂ are connected to three left turn indicator lights L, L, L and right turn indicator lights R, R, R, respectively.
are connected in parallel to one terminal of R, and the other terminals of these indicator lights are all grounded. The circuit described above is a direction indicating circuit.

Next, the hazard indicator circuit will be explained. The 4-pole double-throw relay interlocking pushbutton switch 4 surrounded by dotted lines in the figure includes a normally open pushbutton switch B, a solenoid S, a switching contact piece S ₁ which is a first switch, a switching contact piece S ₂ , and a second switch. The two-circuit, three-contact switch 5 _, which is also surrounded by a dotted line and is composed of switching contacts S _{3 and} S ₄ as shown in _FIG . has been done. The positive terminal 2 of the battery power supply E is connected to one contact B ₁ of the pushbutton switch B and one contact S ₁₁ , S ₂₁ that is in contact with the switching contacts S ₁ , S ₂ . From the other contact B ₂ of pushbutton switch B to the contact in the neutral position of third switch S _Ta
Na and the switching contact S ₁ are connected to the other contact S ₁₂ . The contact piece of the third switch S _Ta is grounded via a solenoid S. The output terminal 3b of the flasher 3 is connected to the input sides of the left turn indicator lights L, L, L and right turn indicator lights R, R, R with separate wiring W ₁ , W ₂ , and is connected to the wiring W ₁ , W _{2 .} are respectively switching pieces.
Third contact C ₃ and fourth contact connected and disconnected by S ₃ and S ₄
C ₄ is placed.

The operation of this circuit consisting of the direction indicating circuit and the hazard indicating circuit as described above will be explained next.

Close the engine key switch S _E to start the engine and enter the driving state, then position the direction indicator switch S _T to the left turn position, that is, to the contact point C ₁ (switch
This is used synonymously with bringing the S _T contact piece into contact with the contact C ₁ . (same as below), the turn signal circuit is closed and energized, flasher 3 is activated, and the left turn signal lights L, L,
L lights up blinking. The same applies to right turns.

Next, in the event of a breakdown or other emergency stop, confirm that the direction indicator switch _ST (S _Ta ) is in the neutral position and press the push button switch B, the solenoid S will be energized and the switching connection will be activated. Piece S ₁ , S ₂ ,
S ₃ and S ₄ are contacts S ₁₁ , S ₂₁ , C ₃ and
Connected to C ₄ . First, when the contact _S11 closes, a self-holding circuit is formed, so there is no problem even if the finger pressure on the pushbutton switch B is released. Next, contact S ₂₁ closes, making it irrelevant to engine key switch S _E , and this circuit will not be opened even if the engine is stopped. Further, by closing the third contact C ₃ and the fourth contact C ₄ , the voltage of the battery power supply E is applied to the left turn and right turn direction indicator lights L, via the blinker 3.
All of L, L and R, R, R can be flashed to notify the following vehicles. When starting from such a hazard indication state, the vehicle moves from the parking position on the left side of the road to the center of the road, so a right turn direction instruction is given to make the following vehicle aware of the situation. In other words, the contact piece of the direction indicator switch S _T is connected to the second contact point C ₂
Since the third switch S _Ta is interlocked with the direction indicator switch _ST , the solenoid S is demagnetized and contacts S ₁₁ , S ₂₁ , C ₃ and C ₄ are all opened, and the omnidirectional indicator L is brought into contact with the third switch S Ta. ,L,L and R,R,R
is turned off, meaning the hazard warning is canceled and the original right turn direction is given.

Furthermore, even if you press the push button switch B while keeping the contact piece of the direction indicator switch S _T in contact with the left turn or right turn position L or R, the solenoid S will not turn on because the third switch S _Ta is open. It is not energized and therefore no hazard indication is given. However, since hazard instructions are given when the vehicle is stopped,
Since the driver can fully observe the hazard indicator light confirmation display provided on the instrument panel, malfunctions can be easily noticed.

As is clear from the above explanation, according to the present invention, a hazard indicating circuit is provided in addition to the direction indicating circuit, and the hazard indicating circuit is configured to be closed by a push button switch only when the direction indicating switch is positioned at the neutral position. Therefore, it is possible to give a hazard indication using the direction indicator lamp, and it is also possible to automatically cancel the hazard indication by the direction indication operation, thereby preventing forgetting to turn it off. When operated, the intention to start can be immediately notified to following vehicles, resulting in a high degree of safety.

[Brief explanation of the drawing]

The figure is a circuit diagram showing an embodiment of the present invention. 3... Flasher, 4... 4 pole double throw relay interlocking push button switch, 5... 2 circuit 3 contact switch, B...
Push button switch, S _T ... Direction switch, S ₁ ...
Switching contact piece (first switch), S ₃ , S ₄ ... Switching contact piece (second switch), S _Ta ... Third switch, C ₁ ...
1st contact, C ₂ ... 2nd contact, C ₃ ... 3rd contact,
C ₄ ...Fourth contact, L, R...Direction indicator light.

Claims (1)

[Scope of utility model registration request] Connect the output terminal of a flasher whose input terminal is connected to a power source to the input terminal of a left turn/right turn signal light whose output terminal is grounded, and connect the output terminal of the flasher to the input terminal of the two-way signal light. a direction indicator circuit having a direction indicator switch that is grounded between the two and selectively connected to either one of the direction indicator lights or a neutral position that is not grounded to any of the direction indicator lights; and an input terminal that is grounded to the power supply a first switch which is connected in parallel between the input and output terminals of the normally open switch and closes only when the solenoid is energized; a hazard indicator circuit having a second switch connected in parallel to the direction indicator switch and closed only when the solenoid is energized; the direction indicator switch is connected between the first switch output terminal and the input terminal of the solenoid; a third switch interlocked with the direction indicating switch, and the third switch is configured to close the third switch and energize the solenoid only when the direction indicating switch is in the neutral position. instruction circuit.