JPS5826836Y2 - Direction control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a direction indicating control device for an automobile.

Generally, in order to change the course of a car, when you operate a direction switch installed near the steering wheel,
The direction indicator lights flash, and when the driver returns the steering wheel after changing direction, the direction indicator switch automatically returns to normal and the direction indicator lights stop blinking.

However, when pressing the button on a route bus, etc. that travels on a congested road with many lanes, it is not possible to make large changes in course at once.・When the steering wheel is returned to its original state, the direction switch returns to its original state, and the user has to operate the direction switch many times, making the operation complicated and prone to accidents. .

The present invention was developed to solve the above-mentioned inconvenience, and by adding a timer circuit to the direction indicator control device, the direction indicator light continues to blink for a certain period of time after the direction indicator switch is reset. It is characterized by the following structure.

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

First, the overall configuration will be explained with reference to Fig. 1.
ri A car power supply whose negative terminal is grounded, power supply 1
The positive terminal of is connected via an ignition switch 2 button and a fuse 3 to a power terminal 4a of a known flashing device 4.

A direction indicating switch having a 5ri contact piece 50 and contacts 50L and 50R, the output terminal 4b of the contact piece 50ri flashing device 4
It is connected to the.

6L, 6R1j: Timer circuits with the same configuration, each timer circuit 6L, 6R has a power terminal 5a, a % output terminal 6b,
The bypass terminal 6c has a first input terminal 6d and a second input terminal 6e.

The power supply terminals 6a of the timer circuits 6L and 6R are both connected to the positive terminal of the power supply 1 via the fuse 3 and the ignition switch 2, and the output terminal 6bv' of the timer circuit 6L.
i The output terminal 6b of the timer circuit 6R is grounded via the left direction indicator light 7L, and the output terminal 6b of the timer circuit 6R is grounded via the right direction indicator light 7R.

Further, the output terminal 4bv'i of the flashing device 4 is connected to the bypass terminal 6c of the timer circuits 6L and 6R, and the contact 50L of the direction indicating switch 5 is connected to the first input terminal 6d of the timer circuit 6L and the first input terminal 6d of the timer circuit 6R. The contact 50R is connected to the first input terminal 6d of the timer circuit 6R and the second input terminal 6e of the timer circuit 6L.

Therefore, the timer circuits 6L and 6R are symmetrically connected like the left and right direction indicator lights 7L and 7R.

Next, the internal configuration of the timer circuits 6L and 6R will be explained with reference to FIG.

9 and 10ri are transistors that constitute a known Schott circuit, the collectors of transistors 9 and 10 are connected to the power supply terminal 6a through resistors 11 and 12, respectively, and the emitters of both transistors are connected through resistors 13. grounded, and the base of transistor 100 is connected to resistor 1
4 to the collector of transistor 9.

15 is a transistor for driving the relay, transistor 1
The collector of the transistor 5 is connected to the power supply terminal 6a via the relay coil 16, the emitter is grounded, and the base is connected to the collector of the transistor 10.

A diode 17 is connected in parallel with the relay coil 117, and is configured to absorb the back electromotive force generated in the relay coil 16 by the diode 17.

A bypass terminal 6cV'i is connected to the output terminal 6b via a normally open relay contact 160 that responds to the magnetic force of the relay coil 16.

It is connected to the base of the transistor 90 via the first input terminal 6dri, a diode 18, a resistor 19, and a resistor 20, and is also connected to the output terminal 6b via a diode 21.

A capacitor 22 is connected between a connection point between the resistors 19 and 20 and a ground point.The resistor 19.degree. 203 and the capacitor 22 constitute a known delay circuit.

This is a resistor connected in parallel with the 23ri capacitor 22.

The second input terminal 6e is connected to the base of the transistor 100 via resistors 24, 251- and a diode 26.

A capacitor 27 is connected between a connection point between the resistors 24 and 25 and a ground point, and the resistors 24 and 25 and the capacitor 26 constitute a known delay circuit.

Next, the operation of the direction indication control device configured as described above will be explained.

Now, as shown in FIG. 1, when the ignition switch 2 is closed without operating the direction switch 5, the transistor 9 of the Schmitt circuit is turned off, the transistor 10 is turned on, and the transistor 15 is turned off.

Therefore, no magnetic force is generated in the relay coil 16 connected to the collector of the transistor 15, and the relay contact 160
is inactive.

In this state, when the direction indicating switch 5 is operated and, for example, the contact piece 50 is inserted into the contact 50L, the output terminal 4b of the blinking device 4 is connected to the direction indicating switch 5, the first input terminal 6d of the timer circuit 6L, and the diode 21 button. and is connected to the direction indicator light 7 via the output terminal 6b.

Then, the flashing device 4 is activated, the direction indicator light 7L flashes, and a pulse voltage is applied to the first input terminal 6d of the timer circuit 6L.

When a pulse voltage is applied to the first input terminal 6d, the capacitor 22 of the delay circuit connected via the diode 18
is charged, and transistor 9 of the Schmitt circuit
0 base voltage rises, transistor 9 turns on,
Transistor 10 is turned off.

Therefore, the base voltage of the transistor 15 increases and the transistor 15 is turned on, current flows through the relay coil 16, a magnetic force is generated, and the relay contact 160 is closed.

Then, the output terminal 4b of the flashing device 4 becomes the bypass terminal 6.
c,') It is connected to the direction indicator light 7L via the relay contact 160 and the output terminal 6b.

The above operations are completed within a short time when the direction indicating switch 5 is operated.

Next, when the direction switch 5 returns in the above state,
Due to the function of the delay circuit consisting of the capacitor 22 and the resistors 19 and 20, the transistor 9 of the Schmitt circuit is turned ON for a certain period of time, the transistor 10 is held OFF, the transistor 15 is turned ON, and the relay contact 160 is closed. Continue to grow.

Therefore, even after the direction indicator switch 5 is restored, an intermittent current flows from the output terminal 4b of the flashing device 4 to the direction indicator light 7L via the bypass terminal 5cs relay contact 160 and the output terminal 6b, causing the direction indicator light 7L to blink. Continue.

Therefore, even if the direction indicator switch 5 is automatically reset in the middle of a major change in the direction of the vehicle, the direction indicator light will remain on for a certain period of time due to the function of the delay circuit consisting of the capacitor 22 and resistors 19 and 20. 7L continues to flash.

Further, as described above, when the contact piece 50 of the direction indicator switch 5 is inserted into the contact point 50L and the direction indicator light 7L is blinking, if the direction indicator switch 5 is operated again and the contact piece 50 is inserted into the contact point 50R, the direction indicator light 7L is turned on. As the indicator light 7R blinks, a pulse voltage is applied to the second input terminal 6e of the timer circuit 6L.

Then, the capacitor 27 of the delay circuit connected to the second input terminal 6e is charged, and the base voltage of the transistor 100 of the Schmitt circuit connected via the diode 26 increases, and even though the transistor 9 is ON, the transistor 10 is turned on. It becomes ON.

Therefore, when the transistor 10 is turned on, the transistor 15 is turned off, the relay contact 160 is opened, and the flashing operation of the direction indicator light 7L is stopped.

Or, when the direction indicating switch 5 is operated to disconnect the contact piece 50 and the contact point 50L and connect the contact piece 50 to the contact point 50R, the operation of the delay circuit consisting of the capacitor 22 and the resistor 19°20 is affected. Therefore, the blinking operation of the turn signal light 7L stops, and the turn signal light 7R on the side that has been turned on blinks in the same manner as the direction signal light 7L described above.

The operation of the timer circuit 6L has been described above, but the operation of the timer circuit 6R having the same circuit configuration is also similar.

As is clear from the above explanation, in the direction indicator control device of the present invention, even after the direction indicator switch is restored, the direction indicator light continues to blink for a certain period of time due to the action of the timer circuit. Therefore, there is no need to operate the direction switch even if you go bankrupt in the middle of a major change in direction.
It's convenient.

Furthermore, if one direction indicator light is flashing, if you switch the direction indicator switch to the other direction indicator light, the timer circuit will stop operating and only the direction indicator light on the switched side will start blinking. This eliminates the inconvenience of the left and right direction indicator lights flashing at the same time, and has excellent practical effects.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing the internal configuration of a timer circuit. [Explanation of symbols], 1... Power supply, 4... Flashing device, 5
...Direction switch, 50...Touch piece, 50L, 5
0R...Contact, 6L, 6R...Timer circuit, 7L
,? R... Turn signal light, 4a, 6a... Power terminal, 4b. 6b...output terminal, 6c...bypass terminal, 6d.
...first input terminal, 6e...second input terminal.

Claims (1)

[Claims for Utility Model Registration] When a pulse voltage is applied to the first input terminal 6d, a delay signal is generated that keeps the bypass terminal 6c connected to the output terminal 6b for a certain period of time; A timer circuit 6 that emits a signal to disconnect the bypass terminal 6c and the output terminal 6b when a pulse voltage is applied to the terminal 6e.
The power supply terminal 4a of the flashing device 4 is connected to the positive terminal of the power supply 1 whose negative terminal is grounded, and the output terminal 4b is connected to the contact piece 50 of the direction indicator switch 5 and the timer circuit. 6L and the bypass terminal 6c of the timer circuit 6R, and connect one contact 50L of the direction indicator switch 5 to the first input terminal 6 of the timer circuit 6L.
d and the second input terminal 6e of the timer circuit 6R,
The other contact 50R is connected to the second input terminal 6e of the timer circuit 6L and the first input terminal 6d of the timer circuit 6R, and the power supply terminals 6a of the timer circuit 6L and the timer circuit 6R are connected to the power supply. 1, the output terminal 6d of the timer circuit 6L is connected to the ground via the direction indicator lamp 7L, and the output terminal 6b of the timer circuit 6R is connected to the ground via the direction indicator lamp 7R. Turn signal control device.