JP2002172976A - Four-bulb head light for vehicle, head light device for vehicle, and remodeling method for the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate a remodeling to a four-bulb head light A4 when a two- bulb head light A2 of a base vehicle is remodeled to the four-bulb head light A4 by also lighting a Lo beam bulb 2 in a Hi beam state to increase an attractiveness and assuring a uniform light distribution and a visibilty, lighting a beam lamp 8 in a meter in the High beam, and eliminating special measures against heat and water leakage for a resistor R as a dummy resistance of a beam lamp in the meter. SOLUTION: For an H/L relay 4 for switching the Hi and Lo beam bulbs 1 and 2 in on and off states, a dimmer switch 6 for switching the lighting of the Hi beam bulb 1, and a beam lamp 8 in the meter showing the lit condition of the Hi beam bulb 1, the Hi beam bulb 1 is connected between the H/L relay 4 and the High beam side contact 6b of a dimmer switch 6, the Lo beam bulb 2 is connected between the H/L relay 4 and an earth, the resistor R is connected between the H/L relay 4, the beam lamp 8 in the meter, and the Lo beam side contact 6c of the dimmer switch 6, and the resistor R is installed in the Hi beam bulb 1 separately from a Hi beam filament 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a four-light type headlight for a vehicle, a headlight device for a vehicle, and a method of modifying the same.

[0002]

2. Description of the Related Art In general, a two-light type and a four-light type are widely used as this kind of vehicle headlight device. This two-lamp type headlight device has one lamp on each of the left and right sides of the front part of the vehicle, and each lamp accommodates a Hi beam bulb and a Lo beam bulb together. By operating the dimmer switch, the lighting state of the Hi and Lo beam valves in each lamp is switched, and Lo for preventing dazzling to oncoming vehicles, pedestrians, and the like.
When the beam state is set, only the Lo beam valve is turned on to turn off the Hi beam valve. On the other hand, when the Hi beam state is set or the passing is performed, the Hi beam valve is turned on to turn off the Lo beam valve. It has become.

On the other hand, the latter four-light type headlight device has two lamps arranged side by side on the left and right sides of the front part of the vehicle, and one of the lamps (the center side in the vehicle width direction) has a Hi-beam bulb. In addition, Lo beam bulbs are separately housed in the other lamps (outside in the vehicle width direction),
By operating the dimmer switch, when the Lo beam state is set, only the Lo beam valve is turned on and the Hi beam valve is turned off. However, when the Hi beam state or passing is performed, the Lo beam valve is kept turned on. The Hi-beam valve is turned on.

FIG. 7 shows the circuit configuration of the two-light type headlight device on one of the left and right sides of the vehicle. The beam valves 2 and 2 are Lo beam valves. These two beam valves 1 and 2 are used to switch the beam valves 1 and 2 between a lighting state and a lighting state.
/ L relay 4 (headlight relay). The H / L relay 4 has a normally open (normally OFF) switch 4a and a solenoid 4b for opening and closing the switch.
The contact on the power supply side of the switch unit 4a is connected to the power supply B, and the contact on the ground side is connected to both beam valves 1 and 2. The solenoid unit 4b is connected to an H / L switch (not shown) of a combination switch group arranged in the vehicle compartment, and excites the solenoid unit 4b by operating a beam valve of the H / L switch to switch the switch unit 4a. Is switched from the OFF state to the ON state, so that the Hi or Lo beam valves 1 and 2 are energized and turned on.

Reference numeral 6 denotes the Hi and Lo beam valves 1, 2
The dimmer switch 6 is operated to switch the lighting of the dimmer. This dimmer switch 6 has movable contacts 6a and Hi.
It comprises a beam side contact 6b and a Lo beam side contact 6c,
The movable contact 6a is connected to the ground, the Hi beam side contact 6b is connected to the Hi beam valve 1, and the Lo beam side contact 6
c is connected to the Lo beam valve 2 and H
When the movable contact 6a is switched to the Hi beam side contact 6b while the / L relay 4 is ON, the Hi beam valve 1
When the movable contact 6a is switched to the Lo beam side contact 6c, a current is supplied to the Lo beam valve 2 to turn on the Lo beam valve 2. ing.

A circuit between the Lo beam side contact 6c of the dimmer switch 6 and the Lo beam valve 2 is connected to the ground via a beam lamp 8 in the meter. The in-meter beam lamp 8 is used to indicate to the occupant the lighting state of the Hi-beam valve 1 in a meter in an instrument panel (not shown), and is simultaneously turned on when the Hi-beam valve 1 is turned on.

That is, when the movable contact 6a of the dimmer switch 6 is switched to the Lo beam side contact 6c and the Lo beam bulb 2 is turned on, no voltage is applied to both ends of the in-meter beam lamp 8, so Although the beam lamp 8 does not light up, the movable contact 6a of the dimmer switch 6 is switched to the Hi-beam side contact 6b and Hi
When the beam valve 1 is turned on, a power supply voltage is applied to the in-meter beam lamp 8 via the Lo beam valve 2, and the Lo beam valve 2 is in a non-lighted state and does not generate heat. It functions simply as a dummy resistor, which turns on the beam lamp 8 in the meter.

On the other hand, 10 is a position lamp as one of the auxiliary lamps indicating the position of the vehicle, and 11 is another auxiliary lamp, which functions as an auxiliary lamp group. The position lamp 10 and the auxiliary lamps 11 of this auxiliary lamp group,
Are connected in parallel to a TNS relay 13 for switching the lamps 10 between a lighting state and a lighting state. This TNS relay 13 is normally open (always OFF)
The power supply side contact of the switch part 13a is connected to the power supply B, and the earth side contact is connected to the auxiliary lamp group. The solenoid 13b is connected to the H / L switch of the combination switch group,
By energizing the solenoid 13b by turning on the auxiliary lamp of the H / L switch to switch the switch 13a from the OFF state to the ON state, the position lamp 10 and the other auxiliary lamps 11, 11,. .

On the other hand, FIG. 8 shows a circuit of a four-light type headlight device (the same parts as those in FIG. 7 are denoted by the same reference numerals and detailed description thereof is omitted). The connection structure of the in-meter beam lamp 8 is different from the circuit of the light device. That is, the in-meter beam lamp 8 is connected in parallel with the Hi beam bulb 1 between the switch section 4a of the H / L relay 4 and the Hi beam side contact 6b of the dimmer switch 6, and the movable of the dimmer switch 6 Contact 6a is switched to Hi beam side contact 6b and H
When the i-beam valve 1 is turned on, the in-meter beam lamp 8 is turned on.

When the H / L relay 4 is in the ON state, the Lo beam valve 2 is always turned on regardless of the switching of the dimmer switch 6.
The beam side contact 6c is an empty contact to which the Lo beam valve 2 is not connected, and the Lo beam valve 2 is directly connected to the ground.

In recent years, diversification and individualization of vehicles have been progressing as user needs, and modification of the base vehicle has been customizing a vehicle corresponding to the user needs to differentiate the vehicle from the base vehicle. As an example,
For a base vehicle having a two-light type headlight device, the headlight device may be modified to a four-light type.

However, in this case, the following problem occurs only by replacing the two-light headlight with the four-light headlight without changing the circuit of the base vehicle. That is, as described above, in the two-lamp headlight, the Lo-beam valve 2 does not turn on in the Hi-beam state as in a normal four-lamp headlight. In the device, although there are four lamps, they are not all turned on in the Hi beam state, and the appearance in the Hi beam state is poor.

In the four-light type headlight device, only the Hi-beam valve 1 is turned on or off in accordance with the switching of the beam state. Therefore, the irradiation light of the Hi-beam valve 1 is usually larger than that of the two-light type headlight device. If the Lo beam valve 2 is not turned on as described above in the Hi beam state of the 4-lamp headlight device after replacement with the 2-lamp headlight, the spot beam by the Hi beam valve 1 is obtained. However, there is a possibility that the diffused light due to the lighting of the Lo beam valve 2 is insufficient, and the visibility is deteriorated due to poor light distribution.

In order to turn on the Lo beam valve 2 even in the Hi beam state, the Lo beam valve 2 is connected not to the Lo beam side contact 6c of the dimmer switch 6 but to the ground via a beam lamp 8 in the meter. You may make it always light. However, the Lo beam valve 2 and the in-meter beam lamp 8 are connected in series to the circuit, and when the Lo beam valve 2 is lit in the Hi beam state, the Lo beam valve 2 is increased due to an increase in resistance. There is a problem that the beam resistance inside the meter 8 does not turn on because it does not become a dummy resistor of the beam lamp 8 within the meter.

[0015]

In order to eliminate the non-lighting state of the in-meter beam lamp 8 in the Hi beam state as described above, for example, the Lo beam valve 2 is directly grounded so as to be in parallel with the Hi beam valve 1. If the resistor is connected in series with the in-meter beam lamp 8, the Lo beam valve 2 can be always turned on, and in the Hi beam state, the resistor becomes a dummy resistor of the in-meter beam lamp 8, , A current flows through the in-meter beam lamp 8 and the in-meter beam lamp 8 can be turned on.

However, in practice, the resistor needs to have a large heat value. For example, when the resistor is arranged in the engine room behind the headlight, a new heat source is generated in the engine room. Since the temperature of the engine room rises, some heat dissipation measures are required. Moreover, the resistors need to be special waterproof type,
It is inevitable that costs will increase.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to modify a headlight device of a base vehicle having a two-light type headlight so that the headlight device is changed to a four-light headlight device. By arranging a resistor as a dummy resistor at a predetermined location, it is possible to eliminate the need for measures against heat radiation by the resistor and waterproofing of the resistor itself,
A beam lamp in a meter is turned on in an i-beam state, so that conversion from a two-light headlight device to a four-light headlight device can be easily performed.

[0018]

In order to achieve the above-mentioned object, according to the present invention, heat generated when each of the beam valves and the like is turned on is set in a lamp in which a Hi-beam valve or a Lo-beam valve of a headlight is mounted. Paying attention to the structure that can radiate heat well and waterproof each beam bulb and the like, a resistor serving as a dummy resistor of the beam lamp in the meter is arranged in the lamp.

Specifically, the invention of claim 1 is an invention of a four-light headlight for a vehicle, and the four-light headlight for a vehicle according to the present invention turns on and off the Hi and Lo beam valves. Beam valve lighting switching means for switching, and a Hi beam valve connected between a Hi beam side contact of a dimmer switch for switching between the Hi beam state and the Lo beam state to perform lighting switching of the beam valve; A Lo beam valve connected between the beam valve lighting switching means and ground, the beam valve lighting switching means, a beam lamp in the meter for indicating the lighting state of the Hi beam valve in the meter, and a Lo of the dimmer switch. A resistor connected between the beam side contacts and serving as a dummy resistor of the beam lamp in the meter, Resistor is characterized in that it is disposed in a lamp comprising a lamp of the Hi or Lo beam bulb.

According to the above arrangement, when the beam valve lighting switching means is switched to the valve lighting state in a state where the four-light headlight is incorporated in a base vehicle having the two-light headlight, the beam valve is provided. The Lo beam valve connected between the lighting switching means and the ground lights up regardless of the switching state of the dimmer switch.

If the dimmer switch is switched to the Hi beam side contact when the beam valve lighting switching means switches to the bulb lighting state, a current flows from the beam valve lighting switching means via the Hi beam valve and the dimmer switch. The Hi-beam bulb lights up. Since the beam lamp in the meter is connected to the beam valve lighting switching means via a resistor, the H of the dimmer switch
In the i-beam state, the in-meter beam lamp is turned on using the resistor as a dummy resistor.

On the other hand, when the dimmer switch is switched to the Lo beam side contact, a current flows from the beam valve lighting switching means to the dimmer switch via the resistor and the resistor generates heat, but the beam lamp in the meter does not light.

Accordingly, since the Lo beam valve is turned on regardless of the switching state of the dimmer switch in the valve lighting state of the beam valve lighting switching means, not only the Hi beam valve but also the Lo beam in the Hi beam state of the dimmer switch. The bulb will also light, Hi
The appearance in the beam state can be improved, and the light distribution and visibility by lighting the Lo beam valve can be ensured.

Also, when the dimmer switch is switched to the Hi beam state, the beam lamp in the meter is turned on using a resistor as a dummy resistor. Therefore, the above-described four-light headlight is replaced with a base vehicle having two-light headlight. Also, the lighting state of the beam lamp in the meter can be secured.

The resistor serving as a dummy resistor of the in-meter beam lamp is disposed in a lamp including a lamp of a Hi or Lo beam bulb, and the inside of the lamp generates heat when each beam bulb or the like is turned on. Because it has a structure that radiates heat well and waterproofs each beam valve, etc., that is, a structure that emits heat while the beam valve etc. is waterproof, no special heat radiation measures and waterproof measures for the resistor are necessary. Become.
This makes it possible to easily convert a two-light headlight to a four-light headlight at low cost.

According to the invention of claim 2, the resistor is Hi.
Alternatively, the beam filament is provided inside the Lo beam valve independently of the beam filament. This allows the resistor to be disposed in the beam valve in the same manner as the filament, so that the resistor can be handled integrally with the beam valve, and the handleability of the resistor can be improved. Moreover, only the beam valve needs to be provided with a resistor, and the lamp itself does not need to be remodeled, so that the remodeling from a two-lamp headlight to a four-lamp headlight can be performed more easily.

In the invention according to claim 3, the lamp is Hi or L.
The o-beam bulb has a resistor mounting portion having the same structure as a lamp mounting portion for mounting another lamp, and the resistor is disposed in the lamp while being mounted on the resistor mounting portion. Configuration. In this way, if the lamp has a lamp mounting portion, the lamp mounting portion can be used as it is as a resistor mounting portion, and a resistor can be mounted on the lamp mounting portion. Modification to a lamp-type headlight can be performed more easily.

In the invention of claim 4, the resistor is provided integrally with the Hi or Lo beam valve. Thus, the resistor can be handled integrally with the beam valve, and the handleability of the resistor can be improved. Further, it is not necessary to remodel the lamp itself, and the remodeling from a two-light headlight to a four-light headlight can be performed more easily.

In the fifth aspect of the present invention, the resistor does not emit light when energized. In this case, the resistor becomes a stable dummy resistor when the beam lamp in the meter is energized, and the beam lamp in the meter can emit light stably.

A sixth aspect of the present invention is directed to a vehicle headlight device.
beam valve lighting switching means for switching the i and Lo beam valves between a lighted state and a light-off state, a dimmer switch for switching between the Hi beam state and the Lo beam state to switch on and off the beam valve, and the Hi beam valve in a meter And a resistor disposed in a lamp including the lamp of the Hi or Lo beam bulb and serving as a dummy resistor of the beam lamp in the meter.

The beam valve lighting switching means includes a first circuit connected to ground via the Lo beam valve, a second circuit connected to the Hi beam valve, and ground via a beam lamp in the meter. The connected third circuit is connected in parallel. The resistor is connected in series to a third circuit between the beam valve lighting switching means and the in-meter beam lamp.

When the dimmer switch is switched to the Lo beam state, the third circuit between the resistor and the in-meter beam lamp is connected to the ground, while the H switch is connected to the H circuit.
The second and third circuits are connected to connect the second circuit to ground when switched to the i-beam state.

According to this configuration, when the beam valve lighting switching means is switched to the valve lighting state, a current flows from the power supply to the ground via the beam valve lighting switching means and the first circuit, and the Lo beam valve of the first circuit is lit. I do. In this state, when the dimmer switch is switched to the Lo beam state, the third circuit between the resistor and the in-meter beam lamp is connected to the ground via the dimmer switch, and current flows from the power supply to the ground. Through the resistor and the dimmer switch. Also, the beam lamp in the meter of the third circuit is not turned on because both ends are connected to the ground.

On the other hand, when the dimmer switch is switched to the Hi-beam state, the second circuit is connected to the ground, and a current flows from the power supply to the ground via the Hi-beam valve and the dimmer switch of the second circuit. Lights up. In addition, since the third circuit is directly connected to the ground, the in-meter beam lamp of the third circuit is turned on using the resistor as a dummy resistor. Therefore, the present invention can provide the same functions and effects as the first aspect of the present invention.

According to a seventh aspect of the present invention, in the vehicle headlight device of the sixth aspect, the resistor is provided inside the Hi or Lo beam valve independently of the beam filament. . According to this invention, the same operation and effect as those of the second aspect can be obtained.

According to an eighth aspect of the present invention, in the vehicle headlight device according to the sixth aspect of the present invention, the lamp has a resistance similar to that of a lamp mounting portion for mounting a different lamp from the Hi or Lo beam bulb. It has a container mounting part,
It is assumed that the resistor is provided in the lamp while being attached to the resistor attachment portion. In this case, the same effect as that of the third aspect can be obtained.

According to a ninth aspect of the present invention, in the vehicle headlight device of the sixth aspect, the resistor is Hi or L.
o It shall be provided integrally with the beam valve.
Thus, the same effect as that of the fourth aspect can be obtained.

According to a tenth aspect of the present invention, in the vehicle headlight device according to any one of the sixth to ninth aspects,
The resistor shall not emit light when energized. According to this invention, the same function and effect as those of the fifth aspect can be obtained.

An eleventh aspect of the present invention is directed to a method for remodeling a headlight device for a vehicle in which a two-light headlight is converted into a four-light headlight. Beam valve lighting switching means for switching the Hi and Lo beam valves between a light-on state and a light-off state, and a Hi-beam side contact of a dimmer switch for switching between the Hi-beam state and the Lo-beam state and switching on and off the beam valves. Connected between the Hi-beam valve, the beam valve lighting switching means, the beam lamp in the meter for indicating the lighting state of the Hi-beam valve in the meter, and the Lo beam side contact of the dimmer switch. Lo beam valve and an auxiliary lamp for switching the auxiliary lamp between a lighting state and an extinguished state. It is connected between the lighting switching means and ground, and a position lamp indicating the position of the vehicle.

On the other hand, the four-light type headlight comprises the beam valve lighting switching means and the dimmer switch Hi.
A Hi beam valve connected between the beam side contacts, a Lo beam valve connected between the beam valve lighting switching means and the ground, the beam valve lighting switching means, a Lo beam bar side contact and a meter of the dimmer switch A resistor which is connected between the inner beam lamps and serves as a dummy resistor of the in-meter beam lamp, wherein the resistor is disposed in a lamp including the lamp of the Hi or Lo beam bulb. The four-light headlight is incorporated in place of the two-light headlight.

According to the structure of the present invention, before the remodeling, the position lamp of the two-lamp headlight is turned on when the auxiliary lamp lighting switching means is turned on. Then, when the beam valve lighting switching means enters the valve lighting state and the dimmer switch is switched to the Hi beam side contact, the Hi beam valve is turned on,
The beam lamp in the meter turns on the Lo beam valve as a dummy resistor. On the other hand, when the dimmer switch is switched to the Lo beam side contact, the Lo beam valve is turned on, and the Hi beam valve and the beam lamp in the meter are turned off.

In the state after the modification in which the two-lamp headlight is replaced with the four-lamp headlight, when the beam valve lighting switching means is turned on, the connection is established between the beam valve lighting switching means and the ground. The Lo beam valve is always turned on. Then, when the dimmer switch is switched to the Hi-beam side contact, the Hi-beam valve is turned on in accordance with the switching, and the beam lamp in the meter is turned on using the resistor as a dummy resistor. On the other hand, when the dimmer switch is switched to the Lo beam side contact, the Hi beam valve turns off and
Current flows through the resistor, but the beam lamp in the meter goes off. Therefore, the same operation and effect as those of the first aspect can be obtained in this invention.

According to a twelfth aspect of the present invention, in the method for modifying a vehicle headlight device according to the eleventh aspect,
The resistor of the lamp type headlight is provided inside the Hi or Lo beam valve independently of the beam filament. According to this invention, the same operation and effect as those of the second aspect can be obtained.

According to a thirteenth aspect of the present invention, in the method for modifying a vehicle headlight device according to the eleventh aspect, the lamp of the four-light type headlight is a lamp for mounting a lamp different from the Hi or Lo beam bulb. It has a resistor mounting portion having the same structure as the mounting portion, and the resistor is disposed in the lamp while being mounted on the resistor mounting portion. According to this invention, the same operation and effect as those of the third aspect can be obtained.

According to a fourteenth aspect of the present invention, in the method for modifying a vehicle headlight device according to the eleventh aspect, the resistor is provided integrally with the Hi or Lo beam valve. According to this invention, the same operation and effect as those of the fourth aspect can be obtained.

In the fifteenth aspect, the eleventh to fourteenth aspects are provided.
In the method for modifying a vehicle headlight device according to any one of the inventions, the resistor does not emit light when energized. According to this invention, the same operation and effect as those of the fifth invention can be obtained.

[0047]

(Embodiment 1) FIG. 3 shows one of the left and right sides of a vehicle in a vehicle headlight device according to Embodiment 1 of the present invention. A four-light headlight device modified from the two-light headlight device described above is constructed.

The two-lamp type headlight device of the base vehicle before remodeling is the same as that shown in FIG. 7 (the same parts as in FIG. 7 are denoted by the same reference numerals).
For example, the unit is divided into a unit type two-lamp type headlight A2 (a portion surrounded by a dashed line in FIG. 7) as an exchange unit which needs to be exchanged for remodeling, and a non-exchange unit A which does not require exchange. The former two-light headlight A2 (replacement section)
Has a Hi beam bulb 1, a Lo beam bulb 2, and a position lamp 10. On the other hand, the non-exchange part A
An H / L relay 4 as a beam valve lighting switching means for switching the Hi and Lo beam valves 1 and 2 to a light-on state or a light-off state; A dimmer switch 6 for switching lighting, a meter beam lamp 8 for indicating the lighting state of the Hi beam valve 1 in the meter, and auxiliary lamps including auxiliary lamps 11, 11,. TN as auxiliary lamp lighting switching means for switching between the lighting state and the lighting state
An S relay 13 is provided.

The connection state of each of these components is as described above (see “Prior Art”).
Each switch unit 4 of the H / L relay 4 and the TNS relay 13
The power supply side contacts a and 13a are connected to the power supply B, and the solenoids 4b and 13b are connected to H / L switches of a combination switch group (not shown). The movable contact 6a of the dimmer switch 6 is connected to the ground, while the Lo beam side contact 6c is connected to the power supply side end of the in-meter beam lamp 8, and the earth side end of the in-meter beam lamp 8 is grounded. It is connected. Further, the above TN
The auxiliary lamps 11, 11,... Are connected in parallel between the earth side contact of the switch section 13a of the S relay 13 and the earth.

On the other hand, the Hi-beam valve 1 of the two-light type headlight A2 has a ground contact of the switch section 4a of the H / L relay 4 and a Hi-beam contact 6b of the dimmer switch 6.
Is connected between. The Lo beam valve 2 is connected between the ground contact of the switch section 4 a of the H / L relay 4, the power supply end of the beam lamp 8 in the meter, and the Lo beam contact 6 c of the dimmer switch 6. Further, the position lamp 10 is connected in parallel with the auxiliary lamps 11, 11,... Between the ground contact of the switch portion 13a of the TNS relay 13 and the ground.

There are five connecting parts (C1) to (C5) between each part of the two-light type headlight A2 and each part of the non-replaceable part A, and H / H in the connecting part (C1). The earth side contact of the switch section 4a of the L relay 4 is connected to the respective power supply side ends of the Hi beam valve 1 and the Lo beam valve 2. In the connection part (C2), the ground end of the Hi beam valve 1 and the Hi beam side contact 6 of the dimmer switch 6 are connected.
b is connected. In the connection part (C3), L
The ground side end of the o-beam valve 2 is connected to the Lo beam side contact 6c of the dimmer switch 6 and the power supply side end of the in-meter beam lamp 8. Further, at the connection portion (C4), the ground contact of the switch portion 13a of the TNS relay 13 is connected to the power supply side end of the position lamp 10, and the ground side end of the position lamp 10 is connected to the ground at the connection portion (C5). Connected by

When such a two-light headlight device is converted into four lights, the H / L relay 4, the dimmer switch 6, the in-meter beam lamp 8, and the TNS relay 13 of the non-replacement section A are left as they are. Then, the two-light headlight A2 is removed from those parts at the above-mentioned connection parts (C1) to (C5), and the four-light headlight A4 shown in FIG. 4 is replaced by the same connection parts (C1) to (C5). Connected to the parts of the non-replacement part A and incorporated.

The four-light type headlight A4 includes a resistor R and first and second two diodes D1 and D2, in addition to the Hi beam bulb 1, the Lo beam bulb 2 and the position lamp 10. . The above Hi beam valve 1
Is connected in series between the connection parts (C1) and (C2), and when assembled to the non-replacement part A as shown in FIG. 3, the switch part 4a of the H / L relay 4 and the dimmer switch 6 are connected. With the Hi beam side contact 6b.

On the other hand, the Lo beam valve 2 is connected to the connecting portion (C
1) and (C5), are connected in series between the switch unit 4a of the H / L relay 4 and the ground when assembled to the non-replacement unit A as shown in FIG. .

The power supply side end of the position lamp 10 is connected in parallel to the connection (C1) via the first diode D1 and to the connection (C4) via the second diode D2. I have. The ground side end of the position lamp 10 is connected to the connection part (C5).
Therefore, as shown in FIG. 3, the position lamp 10 is connected between the TNS relay 13 and the ground when assembled to the non-replacement part A. The first diode D1 is H /
The current is allowed to flow from the L relay 4 to the position lamp 10, but the reverse is prevented. The second diode D2 allows a current to flow from the TNS relay 13 to the position lamp 10, but prevents the reverse.

A resistor R is connected between the connection portions (C1) and (C3). When the resistor R is mounted on the non-replacement portion A as shown in FIG. L relay 4,
It is connected between the Lo beam bar side contact 6c of the dimmer switch 6 and the in-meter beam lamp 8, and becomes a dummy resistor of the in-meter beam lamp 8 in the Hi beam state of the dimmer switch 6.

To summarize the above circuit configuration, as shown in FIG. 3, the four-lamp headlight A4 is connected to the non-replaceable part A in place of the two-lamp headlight A2.
It is incorporated in the state connected at (C5). This four-light headlight device includes an H / L relay 4, a dimmer switch 6, a position lamp 10, a beam lamp 8 in a meter, a TNS relay 13, and a resistor R.
The H / L relay 4 is connected to the power supply B,
The / L relay 4 includes a first circuit 15 to which the Lo beam valve 2 is connected, a second circuit 16 to which the Hi beam valve 1 is connected, and a third circuit 17 to which the in-meter beam lamp 8 is connected. Connected in parallel. Further, the first circuit 15
And the third circuit 17 are connected to the ground, and the H / L relay 4
A resistor R is connected in series to a third circuit 17 between the first and second meter lamps 8. Furthermore, the TNS relay 13
The position lamp 10 is connected in parallel with the other auxiliary lamps 11, 11,.

When the H / L relay 4 is switched to the bulb lighting state, the dimmer switch 6 switches the third circuit 17 between the resistor R and the in-meter beam lamp 8 when switched to the Lo beam state. Connect to ground while Hi
The second and third circuits 16 and 17 are connected to connect the second circuit 16 to ground when switched to the beam state. In FIGS. 3 and 4, the connecting portion (C
5) is divided into two parts.

FIG. 2 illustrates the right part of a four-light type headlight device, in which 20 is a Hi-beam lamp, and 21 is Lo.
These are Hi-beam lamps which are Lo.
The center side in the vehicle width direction from the beam lamp 21 (upper side in FIG. 2)
Are mounted on a vehicle body (not shown) side by side in the vehicle width direction so as to be located at a position. Each of the lamps 20 and 21 includes a reflector 22.
And a lens 23 disposed on the front side thereof, and the reflector 2
2 so as to cover it, and the reflector 22
A fixing portion 24 that supports the lens 23 with the lens interposed therebetween (see FIG. 5).
A valve mounting portion 25 is opened at the rear end (the left end in FIG. 2) of the reflector 22. The Hi beam bulb 1 is mounted on the bulb mounting portion 25 of the Hi beam lamp 20, and the Lo beam lamp 2 is
The Lo beam bulbs 2 are attached to the first bulb attachment portions 25 with the respective glass tubes 29 facing the inside of the reflector 22.

The resistor R in the four-light type headlight A4 is a resistor H that accommodates the Hi beam bulb 1.
It is arranged in the i-beam lamp 20. That is, the Hi beam valve 1 is, as shown in an enlarged detail in FIG.
It has the same structure as a normal double filament type beam valve. More specifically, the Hi-beam valve 1 is a metal socket 28, and is integrally joined to the socket 28, and is a hermetically closed cylindrical shape in which the inside is substantially in a vacuum state (a small amount of, for example, halogen gas is filled). And a glass tube 29. In a normal double filament type beam valve, a Hi-beam filament and a Lo-beam filament that respectively emit Hi-beam light and Lo-beam light when emitting red heat are accommodated in a glass tube. In the Hi beam valve 1, the Hi beam filament 30 is provided as it is, while a resistor R is connected instead of the Lo beam filament. Unlike the filament, the resistor R has a higher resistance and a larger cross-sectional area than the filament so as not to emit light when energized (a solid-type resistor may be used as the resistor R). The Hi beam filament 30 and the resistor R are supported by supporting conductors 31, 31,... Located in the glass tube 29.
In addition, Hi is connected to the socket 28 via the support conductor 31.
Are provided in an insulated state, and the connection terminals 32, 32,... Are electrically connected to the beam filament 30 and the resistor R. The connection terminals 32, 32,.
1) to (C3).

Since the Hi beam valve 1 is obtained by replacing the Lo beam filament of the ordinary double filament type beam valve with a resistor R, the ordinary double filament type beam valve is provided in the glass tube 29. In this case, the mirror 33 for distributing the light emitted from the Lo beam filament remains as it is.

On the other hand, the Lo beam valve 2 is a single filament type beam valve. That is, as shown in FIG. 2, the Lo beam valve 2 has a socket 28 and a glass tube 2 similar to the Hi beam valve 1.
9 and only the Lo beam filament 35 is provided in the glass tube 29.

Although not shown in FIG. 2, the above Hi
The position lamp 10 is mounted on the reflector 22 of the beam lamp 20 at a position different from that of the Hi-beam bulb 1 (for example, diagonally below the bulb mounting portion 25 at the center in the vehicle width direction) along with the Hi-beam bulb 1. (See FIG. 5).

Therefore, in this embodiment, a four-lamp headlight A4 shown in FIG.
When the two-lamp headlight device shown in FIG. 7 is modified into four lamps, the non-replacement part A of the two-lamp headlight device is left as it is, and only the two-lamp headlight A2 is connected (C1). To (C5), and the four-light type headlight A4 is replaced with the same connecting portions (C1) to (C5).
The connection to the non-exchange section A may be made in 5). At this time, the lamps of the two-light headlight device of the base vehicle are also replaced with the lamps 20, 21 of the four-light headlight device shown in FIG. As a result, as shown in FIG. 3, a four-light headlight device in which the four-light headlight A4 is incorporated in the base vehicle having the two-light headlight A2 is obtained.

In the four-lamp headlight device after the replacement, when the TNS relay 13 is turned on to switch to the lamp lighting state, current is supplied from the power source B to the TNS relay 13.
Through the auxiliary lamps 11, 11,..., The auxiliary lamps 11, 11,.
The current flows to the ground via the S relay 13, the second diode D2, and the position lamp 10, whereby the position lamp 10 is also turned on.

At this time, a first diode D1 for preventing a current from flowing from the TNS relay 13 to the two beam valves 1 and 2 is provided between the position lamp 10 and the H / L relay 4 and the two beam valves 1 and 2. The TNS relay 1 is provided when the TNS relay 13 is ON.
3, a current flows through the two beam valves 1 and 2 and the in-meter beam lamp 8 to turn them on (when the dimmer switch 6 is switched to the Hi-beam side contact 6b when the Hi-beam valve 1 and the in-meter beam lamp 8 are switched) ) Can be prevented.

In this state, when the H / L relay 4 is turned ON to switch to the bulb lighting state, since the Lo beam valve 2 is directly connected between the H / L relay 4 and the ground, the dimmer The movable contact 6a of the switch 6 is H
Regardless of the switching to the i-beam side contact 6b or the Lo-beam side contact 6c, a current flows from the power source B to the Lo beam valve 2 via the H / L relay 4 regardless of the switching,
The Lo beam valve 2 is turned on.

When the dimmer switch 6 is switched to the Lo beam side contact 6c when the H / L relay 4 is switched to the bulb lighting state,
Although the current from the power source B flows to the ground via the H / L relay 4, the resistor R, and the Lo beam side contact 6c of the dimmer switch 6, no current flows through the beam lamp 8 inside the meter, and the beam lamp 8 inside the meter does not flow. Does not light.

On the other hand, when the movable contact 6a of the dimmer switch 6 is switched to the Hi beam side contact 6b, the current is supplied from the power source B to the H / L relay 4, the Hi beam valve 1 and the Hi beam side contact 6b of the dimmer switch 6. The Hi-beam valve 1 is turned on.

At this time, since the Lo beam valve 2 is always turned on regardless of the switching state of the dimmer switch 6, the Lo beam valve 2 is kept in the Hi beam state as in the ordinary four-light headlight device (see FIG. 8). The bulb 2 lights up together with the Hi beam bulb 1. Thus, the appearance in the Hi beam state can be improved, and the light distribution and visibility by lighting the Lo beam valve 2 can be ensured.

When the dimmer switch 6 is switched to the Hi-beam side contact 6b, the current from the power source B becomes H
/ L relay 4, resistor R and beam lamp 8 in the meter to ground. Accordingly, the beam lamp 8 in the meter is turned on with the resistor R as a dummy resistor together with the lighting of the Hi beam valve 1. That is, even if the above-described four-light headlight A4 is replaced with a base vehicle having the two-light headlight A2, the lighting state of the in-meter beam lamp 8 can be ensured using the resistor R as a dummy resistor.

The resistor R, which is connected in series with the in-meter beam lamp 8 and serves as a dummy resistor for lighting the lamp, is a glass tube in the Hi beam bulb 1 mounted in the Hi beam lamp 20. H in 29
The Hi-beam valve 1 is provided independently of the i-beam filament 30. Since the interior of the Hi-beam valve 1 is originally a space in which the heat generated by the lighting of the Hi-beam valve 1 can be radiated well and the Hi-beam filament 30 can be waterproofed, its resistance is reduced. Bowl R
No special heat dissipation or waterproofing measures are required. This makes it possible to easily convert a two-light headlight to a four-light headlight at low cost.

Further, since the resistor R is disposed in the glass tube 29 of the Hi-beam bulb 1 in the same manner as the filament 30, the Hi-beam bulb 1 with the resistor R can be mounted on the Hi-beam lamp 20. The modification of the Hi-beam lamp 20 itself is unnecessary, and the modification from the two-lamp headlight to the four-lamp headlight can be performed more easily. Moreover, the resistor R can be handled integrally with the Hi beam valve 1, and the handleability of the resistor R can be improved.

Further, as described above, the Hi beam valve 1
Can be manufactured by replacing only a Lo beam filament with a resistor R for a normal double filament type beam valve having a Hi beam filament and a Lo beam filament.
The i-beam valve 1 can be easily manufactured at low cost.

Since the resistor R does not emit light when energized, the resistor R does not emit light when the beam lamp 8 in the meter is energized.
Becomes a stable dummy resistor and the beam lamp 8 in the meter
Can be stably emitted.

In the first embodiment, the resistor R is set to Hi.
Although the resistor R is provided in the glass tube 29 of the beam valve 1, the resistor R may be provided in the glass tube 29 of the Lo beam valve 2 instead. The effect is obtained.

(Embodiment 2) FIG. 5 shows Embodiment 2 of the present invention.
(In the following embodiments, the same parts as those in FIGS. 1 to 4 are denoted by the same reference numerals, and detailed description thereof will be omitted.) In the first embodiment, the resistor R is connected to the Hi beam valve 1. (Or Lo beam bulb 2), while being mounted at the lamp mounting position of the lamp.

That is, in this embodiment, as shown in FIG. 5, the reflector 22 of the Hi-beam lamp 20 for accommodating the Hi-beam bulb 1 in the modified four-lamp headlight device has Hi. A lamp mounting portion 26 is opened at a position different from the beam bulb 1 (in the illustrated example, obliquely below the bulb mounting portion 25 at the center in the vehicle width direction), and the position lamp 10 is provided with a light emitting portion at the front end of the lamp mounting portion 26. Is attached to the reflector 22 with the rear facing the fixing portion 24 on the rear side (outside) of the reflector 22.

On the other hand, the reflector 22 in the Lo beam lamp 21 for accommodating the Lo beam bulb 2 includes:
Approximately the same position as the lamp mounting portion 26 in the Hi-beam lamp 20 (in the illustrated example, obliquely below the bulb mounting portion 25 for mounting the Lo beam bulb 2 at the center in the vehicle width direction).
A resistor mounting portion 27 having the same structure as the lamp mounting portion 26
The resistor R is mounted and fixed to the resistor mounting portion 27 with the same mounting structure as the position lamp 10, that is, with the front portion facing the reflector 22 and the rear portion fixed to the fixing portion 24. I have. Other configurations are the same as those in the first embodiment.

Therefore, in this embodiment, L
In the o-beam lamp 21, the part originally used as the lamp mounting part is used as it is as the resistor mounting part 27, and the resistor R may be mounted on the resistor mounting part 27. Became unnecessary
Modification from a two-light headlight to a four-light headlight can be performed more easily.

In the second embodiment, the lamp mounting part 26 is provided on the Hi-beam lamp 20 to mount the position lamp 10, and the lamp mounting part of the Lo-beam lamp 21 is used as a resistor mounting part 27 as a resistor. On the contrary, the lamp mounting part 26 is provided on the Lo-beam lamp 21 to mount the position lamp 10, while the lamp mounting part of the Hi-beam lamp 20 is used as a resistor mounting part 27 and a resistor R is mounted. You may change so that R may be attached.

In the lamps 20 and 21, the lamp mounting portion for mounting a lamp other than the position lamp 10 can be used as a resistor mounting portion, and a resistor R can be mounted on the resistor mounting portion.

(Embodiment 3) FIG. 6 shows Embodiment 3.
In the first embodiment, the resistor R is housed inside the Hi beam valve 1 (or Lo beam valve 2), whereas the resistor R is integrally attached to the outside of the Hi beam valve 1 via the attachment 37. is there.

That is, in this embodiment, the resistor R is mounted and fixed to the socket 28 of the Hi-beam bulb 1 via the attachment 37, and the glass tube 29 of the Hi-beam bulb 1 is connected to the bulb mounting portion 25 of the lamp 20. When inserted into the reflector 22, the resistor R is positioned inside the reflector 22 together with the glass tube 29.

The other configuration is the same as that of the first embodiment. Therefore, in this embodiment, the same operation and effect as those of the first embodiment can be obtained.

In each of the above embodiments, the first and second diodes D1 and D2 are not necessarily provided.
Although they can be omitted, it is preferable to provide them as in the above-described embodiment from the viewpoint of obtaining the operational effects of each of them.

[0087]

As described above, according to the first, sixth and eleventh aspects of the present invention, when a two-light headlight is converted into a four-light headlight, Hi and L of the headlight are changed.
o A beam valve lighting switching means for switching a beam valve between a lighting state and a lighting state, a dimmer switch for switching the lighting of the beam valve, and H
In contrast to the in-meter beam lamp for indicating the lighting state of the i-beam valve, the Hi-beam valve is connected between the beam-valve lighting switching means and the Hi-beam side contact of the dimmer switch, and between the beam-valve lighting switching means and ground. To L
An o-beam valve is connected, and a resistor is connected between the beam valve lighting switching means and the Lo-beam side contact of the beam lamp and the dimmer switch in the meter, and this resistor is connected to a lamp including a Hi or Lo beam valve lamp. In addition to the Hi-beam status of the dimmer switch, not only the Hi-beam valve but also the Lo-beam valve are turned on in conjunction with the four-lighting of the two-light headlight device, improving the appearance in the Hi-beam status. , Light distribution and visibility can be ensured. In addition, in the Hi beam state of the dimmer switch, the beam lamp in the meter can be turned on using a resistor as a dummy resistor, and special heat radiation measures and waterproof measures for the resistor can be eliminated.
Modification from a lamp type headlight device to a four lamp type headlight device can be easily performed at low cost.

According to the second, seventh and twelfth aspects of the invention, the resistor is provided in the Hi or Lo beam valve independently of the beam filament, so that the handleability of the resistor is improved. No need to modify the lamp itself 2
Modification of the headlamp from a lamp type headlight to a four-lamp type headlight can be further facilitated.

According to the third, eighth and thirteenth aspects of the present invention, the resistor is mounted on the resistor mounting portion having the same structure as the lamp mounting portion for mounting a lamp different from the Hi or Lo beam bulb in the lamp. By arranging the lamp in the lamp, the lamp mounting part of the lamp can be used as a resistor mounting part, and it is not necessary to remodel the lamp itself, thereby making it easier to convert a two-light headlight to a four-light headlight. be able to.

According to the fourth, ninth and fourteenth aspects of the present invention, the resistor is provided integrally with the Hi or Lo beam valve, thereby improving the handleability of the resistor and eliminating the need to modify the lamp itself. Modification from a two-light headlight to a four-light headlight can be performed more easily.

According to the fifth, tenth and fifteenth aspects,
By making the resistor that does not emit light when energized,
By using the resistor as a stable dummy resistor, the beam lamp in the meter can emit light stably.

[Brief description of the drawings]

FIG. 1 is a front view showing a Hi-beam valve in a modified four-light headlight device for a vehicle according to a first embodiment of the present invention, together with a resistor therein.

FIG. 2 is a cross-sectional view showing a lamp in the four-light type headlight device for a vehicle, cut away at a valve mounting position.

FIG. 3 is a circuit diagram showing a configuration of a four-light type headlight device for a vehicle.

FIG. 4 is a circuit diagram showing a configuration of a four-light headlight.

FIG. 5 is a cross-sectional view showing a lamp in the modified four-light headlight device according to the second embodiment at a lamp mounting position.

FIG. 6 is a front view showing a Hi-beam valve and a resistor in a modified four-light headlight device for a vehicle according to a third embodiment.

FIG. 7 is a circuit diagram showing a configuration of a two-light type headlight device for a vehicle.

FIG. 8 is a circuit diagram showing a configuration of a general four-light headlight device.

[Explanation of symbols]

 A2 2-lamp headlight A4 4-lamp headlight A Non-replacement section 1 Hi beam valve 2 Lo beam valve 4 H / L relay (beam valve lighting switching means) 6 Dimmer switch 6b Hi beam side contact 6c Lo beam side contact 8 In-meter beam lamp 10 Position lamp 11 Auxiliary lamp 13 TNS relay (auxiliary lamp lighting switching means) 15 1st circuit 16 2nd circuit 17 3rd circuit 20 Hi beam lamp 21 Lo beam lamp 22 Reflector 25 Valve mounting part 26 Lamp Mounting part 27 Resistor mounting part 30 Hi beam filament 36 Lo beam filament 37 Attachment R Resistor B Power supply

Claims (15)

[Claims] 1. A beam valve lighting switching means for switching a Hi and Lo beam valve between a lighting state and a light extinguishing state, and a dimmer switch for switching between a Hi beam state and a Lo beam state to switch on and off the beam valve. Connected between the Hi-beam side contact of
A beam valve, a Lo beam valve connected between the beam valve lighting switching means and the earth, the beam valve lighting switching means, a beam lamp in the meter for indicating a lighting state of the Hi beam valve in the meter, and A resistor connected between the dimmer switch and the Lo beam side contact, and serving as a dummy resistor of the in-meter beam lamp; 4 for a vehicle characterized by being provided
Light type headlight. 2. The four-lamp headlight for a vehicle according to claim 1, wherein the resistor is provided inside the Hi or Lo beam valve independently of the beam filament. Type headlight. 3. The four-lamp headlight for a vehicle according to claim 1, wherein the lamp has a resistor mounting portion having a structure similar to that of a lamp mounting portion for mounting a lamp different from the Hi or Lo beam bulb. A four-light headlight for a vehicle, wherein the resistor is disposed in the lamp while being mounted on the resistor mounting portion. 4. The four-light headlight for a vehicle according to claim 1, wherein the resistor is provided integrally with the Hi or Lo beam valve. 5. The vehicle according to claim 1, wherein
A four-light headlight for a vehicle, wherein the resistor does not emit light when energized. 6. A beam valve lighting switching means for switching a Hi and Lo beam valve of a vehicle headlight between a lighted state and a light-off state, and a dimmer which is switched between a Hi beam state and a Lo beam state to switch on and off the beam valve. A switch, a beam lamp in the meter indicating the lighting state of the Hi beam bulb in the meter, and a resistor disposed in a lamp including a lamp of the Hi or Lo beam valve and serving as a dummy resistor of the beam lamp in the meter. A first circuit connected to the ground via the Lo beam valve, a second circuit connected to the Hi beam valve, and a ground via a beam lamp in the meter. And a third circuit connected in parallel with the beam bulb lighting switching means and the beam lamp in the meter. The third circuit between said resistor is connected in series, the dimmer switch, the third between the resistor and the meter in beam lamp when it is switched to Lo beam state
The second circuit is connected to ground while the circuit is connected to ground, while the second circuit is connected to ground when switched to the Hi-beam state.
And a vehicle headlight device connected to the third circuit. 7. The vehicle headlight device according to claim 6, wherein the resistor is provided inside the Hi or Lo beam valve independently of the beam filament. 8. The headlight device for a vehicle according to claim 6, wherein the lamp has a resistor mounting portion having the same structure as a lamp mounting portion for mounting a lamp different from the Hi or Lo beam bulb. The vehicle headlight device, wherein the resistor is provided in the lamp while being attached to the resistor attachment portion. 9. The vehicle headlight device according to claim 6, wherein the resistor is provided integrally with the Hi or Lo beam valve. 10. The headlight device for a vehicle according to claim 6, wherein the resistor does not emit light when energized. 11. A beam valve lighting switching means for switching a Hi and Lo beam valve of a vehicle headlight between a lighting state and a lighting state, and a Hi beam state or Lo state.
A Hi-beam valve connected between a Hi-beam side contact of a dimmer switch for switching the lighting of the beam valve to be switched to a beam state; the beam valve lighting switching means; A Lo beam valve connected between the in-meter beam lamp for indicating the lighting state and the Lo beam side contact of the dimmer switch; auxiliary lamp lighting switching means for switching the auxiliary lamp to a lighting state or a non-lighting state; And a position lamp indicating the position of the vehicle, the method comprising: modifying a two-light headlight provided with a position lamp indicating a position of a vehicle into a four-light headlight; A Hi beam valve connected between the switching means and a Hi beam side contact of the dimmer switch; A Lo beam valve connected between the beam valve lighting switching means and the ground; a beam valve lighting switching means connected to the Lo beam bar side contact of the dimmer switch and the in-meter beam lamp; A resistor serving as a dummy resistor, wherein the resistor is disposed in a lamp including the lamp of the Hi or Lo beam bulb, and the four-lamp headlight is incorporated in place of the two-lamp headlight. A method for remodeling a vehicle headlight device. 12. The method of modifying a vehicle headlight device according to claim 11, wherein the resistor of the four-light headlight is provided inside the Hi or Lo beam valve independently of the beam filament. A method for modifying a headlight device for a vehicle. 13. The method for modifying a vehicle headlight device according to claim 11, wherein the lamp of the four-light headlight has a structure similar to a lamp mounting portion for mounting a lamp different from a Hi or Lo beam bulb. A method for remodeling a headlight device for a vehicle, comprising a resistor mounting portion, wherein the resistor is disposed in the lamp while being mounted on the resistor mounting portion. 14. The method for modifying a vehicle headlight device according to claim 11, wherein the resistor is provided integrally with the Hi or Lo beam valve. 15. The method of modifying a vehicle headlight device according to claim 11, wherein the resistor does not emit light when energized.