JPH08227601A - Head light device for vehicle - Google Patents

Abstract

PURPOSE: To eliminate the wiring and a wiring space, and to improve the assembling property of a lamp body by forming an input part of a lamp socket of a head light for vehicle and a contact part of a lighting device so as to be brought into electrical contact by sliding. CONSTITUTION: A head light device for vehicle has a lamp body 1, a reflecting plate 2 and a lighting device 4. The lamp body 1 is fitted to a car body 5. The reflecting body 2 is fitted to the lamp body 1 so that the radiating direction thereof can be freely adjusted. The reflecting plate 2 is formed into the bell- shape, and the top part thereof is formed with a lamp installation hole 13, and the lamp installation hole 13 is formed with a lamp receiver stage 14. A socket 3 has an input part 12, and the socket 3 is fitted to the reflecting plate 2 so that a lamp 11 is installed therein. The lighting device 4 has a contact part 17, which makes slidable electrical contact with the input part 12, and the lighting device 4 is fitted to the car body 5. Since the input part 12 of the lamp socket and the contact part 17 of the lighting device 4 makes a slidable electrical contact with each other, the reflecting plate 2 can be adjusted in the radiating direction in the condition that the electrical contact of the lighting device 4 and the lamp socket 3 is maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlight device for a vehicle such as an automobile.

[0002]

2. Description of the Related Art In a headlamp using a high-intensity discharge lamp (HID lamp) such as a metal halide lamp, a lighting device is required for lighting control, and a high voltage of several tens of kV is required to start discharge of the HID lamp. Since it is necessary to apply the voltage, it is desirable for safety that the part that generates the high voltage, including the high voltage code, should not be touched by the user in a straight line.

A conventional example (for example, Jitsukaihei 4-105401) is
As shown in FIG. 9, the lamp body 106 is provided with a lamp body opening portion 102 capable of fixing the lamp 101 to the reflection plate 100,
The lighting device 103 is detachably arranged so as to block the lamp opening 102 with the lighting device 103, and the connection between the lighting device 103 and the high voltage cord 104 is made into a pin connector mechanism 105 to ensure the safety of the lamp replacement work. ing. At the same time, since the lighting device 103 and the lamp 101 are connected to each other by the high-voltage cord 104, it is possible to adjust the illumination direction in which the reflector 100 is moved for aiming.

[0004]

As described above, in the conventional example, the high voltage cord 104 for electrically connecting the lighting device 103 and the lamp 101 is considered in consideration of safety at the time of lamp replacement and adjustment of the irradiation direction. And the electric wire processing was absolutely necessary. Further, since the high voltage cord 104 is routed in a limited space inside the lamp body, there is a drawback that the lamp body is not easily assembled.

Therefore, an object of the present invention is to provide a vehicle headlamp device which does not require electric wire treatment, does not require a space for arranging the electric wire, and can improve the assembling property of the lamp body. Is.

[0006]

According to a first aspect of the present invention, there is provided a headlamp device for a vehicle, comprising: a lamp body mounted on a vehicle body; a reflector plate for adjusting the irradiation direction of the lamp body; and an input section. A lamp socket mounted on the reflection plate for mounting a lamp, and a lighting device mounted on the vehicle body having a contact portion slidably in electrical contact with the input portion are provided.

A vehicle headlamp device according to a second aspect of the present invention is the first aspect.
In, the igniter of the lighting device is provided with the contact portion, and the igniter is fixed to the vehicle body.

[0008]

According to the vehicular headlamp device of the present invention, since the input portion of the lamp socket and the contact portion of the lighting device are slidably in electrical contact, the lighting device and the lamp socket are electrically connected. It is possible to adjust the reflection plate in the irradiation direction while maintaining the above. In this case, the change in the relative position of the lamp socket and the lighting device due to the adjustment of the irradiation direction can be absorbed without using a high-voltage cord, which eliminates the need for wire processing work and does not require a space for wire wiring. As a result, the ease of assembling the lamp body is improved, and the headlamp device can be downsized.

According to a second aspect of the present invention, there is provided the vehicle headlight device according to the first aspect, wherein the igniter of the lighting device is provided with the contact portion, and the igniter is fixed to the vehicle body. In addition to the function, the high-voltage output from the igniter can be transmitted to the lamp socket in the shortest distance, which is efficient, and since the weight of the igniter is not added to the reflector, it is not necessary to increase the strength of the reflector.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this vehicle headlamp device includes a lamp body 1, a reflector plate 2, a lamp socket 3, and a lighting device 4.
Have and. The lamp body 1 is attached to the vehicle body 5. In the embodiment, it is attached by fixing means (not shown), and a part is attached to the vehicle body 5 via the lighting device 4. Reference numeral 6 is a cover of the vehicle body 5.

The reflector 2 is attached to the lamp body 1 so that the irradiation direction can be adjusted. The reflector 2 of the embodiment has a trumpet shape, a lamp mounting hole 13 is formed at the top, and a lamp receiving step 14 is formed in the lamp mounting hole 13. Further, the irradiation direction adjusting means 25 of the reflection plate 2 uses screws 7 and 8 and nuts 9 and 10 for pivoting the reflection plate 2 vertically and horizontally. Turning the screw 7 will rotate the reflector 2 to the left and right,
When the screw 8 is turned, the reflection plate 2 is turned up and down.

The lamp socket 3 has an input portion 12 and is attached to the reflection plate 2 to mount the lamp 11. In the embodiment, the lamp 11 is passed through the lamp mounting hole 13, the locking collar 15 provided on the lamp 11 is locked to the lamp receiving step 14, and both ends of the lamp fixing tool 16 having spring property are hooked on the reflecting plate 2. Fix the lamp 11 to the reflector 2 by hooking it,
The lamp socket 3 is attached to the base 11 a of the above, whereby the lamp socket 3 is fixed to the lamp 11. The lamp socket 3 has a spherical portion formed on the outer surface facing away from the reflection plate 2, and the input portion 12 using a conductor is provided on the surface of the spherical portion.

The lighting device 4 has a contact portion 17 slidably in electrical contact with the input portion 12 and is attached to the vehicle body 5. In the embodiment, including the igniter 4a, a part of the lighting device 4 is directly attached to the vehicle body 5 by the fixing screw 18, and the lighting device 4 is attached to the lamp body 1 by the mounting screw 19. Further, the contact portion 17 is provided in the concave portion 4b into which the spherical portion of the lamp socket 3 is fitted, and the contact portion 17 uses a conductive elastic body. 20 is a power cord.

According to this embodiment, since the input portion 12 of the lamp socket 3 and the contact portion 17 of the lighting device 4 are slidably in electrical contact, the lighting device 4 and the lamp socket 3 are electrically connected. The reflector 2 can be adjusted in the irradiation direction while maintaining the same. In this case, since the change in the relative position between the lamp socket 3 and the lighting device 4 due to the adjustment of the irradiation direction can be absorbed without using the high voltage cord, the electric wire processing work is unnecessary, and the electric wire handling space is secured. Is unnecessary, and the assembly of the lamp body 1 is improved, and
The headlight device can be downsized.

The lighting device 4 is mounted on the vehicle body 5 via the lamp body 1.
May be attached to. A second embodiment of the present invention will be described with reference to FIG. That is, this vehicle headlight device includes the first
In the embodiment, the lighting device 4 has the interlock detection circuit 21 built therein, the terminal 26 is provided in the recess 4b facing the lamp socket 3, and the lighting device 4 is attached to the lamp body 1. The lamp socket 3 is provided with a detection electrode 22 for fitting the spherical portion of the lamp socket 3 into the recess 4b and short-circuiting the terminal 26 of the detection circuit 21. When the terminal 26 of the detection circuit 21 is short-circuited, the lighting device 4 is turned on, and when the lighting device 4 is detached from the lamp body 1, the detection circuit 2 is turned on.
Since 1 is open, the lighting device 4 is turned off.

According to this embodiment, by providing the interlock mechanism for detecting the connection between the lamp socket 3 and the lighting device 4, a high voltage output is not generated when the lighting device 4 and the lamp socket 3 are not connected. Therefore, safety can be achieved when replacing the lamp. Others are the same as those in the first embodiment. A third embodiment of the present invention will be described with reference to FIGS. That is, in this vehicle headlight device, in the first embodiment, one input portion 12 of the lamp socket 3 is formed in a conductive flat plate shape, and the other input portion 29 is projected in a conductive pin shape. I have set up. On the other hand, a concave spherical portion 28 into which the input portion 29 of the lamp socket 3 is slidably fitted is provided in the center of the concave portion 4b of the igniter 4a of the lighting device 4, a conductive portion 30 is provided on the surface thereof, and the input portion 12 is elastic. A contact portion 17 using an elastic body that comes into contact is provided in the recess 4b.

According to this embodiment, the irradiation direction adjusting mechanism 2
5 is adjusted, the pin-shaped input part 29 is slidably contacted with the conductive part 30 of the concave spherical part 28 while the flat-shaped input part 12 is slidably contacted with the elastic contact part 17 while being elastically contacted. Rotates. Therefore, the irradiation direction of the reflector 2 can be adjusted while the electrical connection between the igniter 4a and the lamp socket 3 is maintained. Moreover, the weight of the igniter 4a is not applied to the reflector 2. Others are the same as those in the first embodiment.

A fourth embodiment of the present invention will be described with reference to FIG. That is, in the vehicle headlight device according to the first embodiment, the lamp socket 3 is integrally housed and held in the recess 4b of the igniter 4a of the lighting device 4 via the elastic body 32. Therefore, the lamp socket 3 is connected to the lamp 1
The lamp socket 3 is rotated with respect to the igniter 4a through the elastic body 32 even when it is attached to the base 11a of No. 1 and the irradiation direction of the reflection plate 2 is adjusted, and the input unit 12 contacts the contact unit 17. Due to the elastic sliding contact, the electrical connection between the lamp socket 3 and the igniter 4a is maintained. The igniter 4a is attached to the vehicle body 5 via the lamp body 1. Others are the same as those in the first embodiment.

A fifth embodiment of the present invention will be described with reference to FIG. That is, in this vehicle headlight device, in the fourth embodiment, the concave portion 4b of the igniter 4a is formed in a square shape, and the contact portion 17 uses a conductive spring to elastically contact the rectangular input portion 12. There is. Also in the fourth embodiment, when the reflection plate 2 is rotated with respect to the lamp body 1 by the irradiation direction adjusting mechanism 25, the elastic body 32 is elastically deformed and the lamp socket 3 is used.
Follows the movements of the reflection plate 2 and the lamp 11, and the spring contact portion 17 elastically deforms while being in contact with the input portion 12.
Others are the same as those in the fourth embodiment.

A sixth embodiment of the present invention will be described with reference to FIG. That is, in this vehicle headlight device, in the fifth embodiment, the elastic body 32 is omitted, and a plurality of dog-legged springs are used for one contact portion 17, and a peripheral side portion of the lamp socket 3 is provided. The input portion 12 having the groove 35 is formed, and the peripheral groove 3 is formed.
The contact portion 17 is elastically locked to the input portion 12 having 5 to hold the lamp socket 3 on the igniter 4a. Further, one of the spring-like contact portions 17 in FIG. 7 and the rectangular-shaped input portion 12 contacting the one are omitted.

In the present invention, the input section 12 may be elastic and the contact section 17 may be solid, or both the input section 12 and the contact section 17 may be elastic.

[0022]

According to the vehicle headlight device of claim 1,
Since the input part of the lamp socket and the contact part of the lighting device are slidably in electrical contact, the reflector can be adjusted in the irradiation direction while maintaining the electrical connection between the lighting device and the lamp socket. In this case, the change in the relative position of the lamp socket and the lighting device due to the adjustment of the irradiation direction can be absorbed without using a high-voltage cord, which eliminates the need for wire processing work and does not require a space for wire wiring. As a result, the assembling property of the lamp body is improved, and the headlight device can be downsized.

According to a second aspect of the present invention, there is provided the vehicle headlight device according to the first aspect, wherein the igniter of the lighting device is provided with the contact portion, and the igniter is fixed to the vehicle body. In addition to the effect, the high voltage output from the igniter can be transmitted to the lamp socket in the shortest distance, which is efficient, and since the weight of the igniter is not added to the reflector, it is not necessary to increase the strength of the reflector.

[Brief description of drawings]

FIG. 1 is a partially exploded sectional view of a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of the combined state.

FIG. 3 is a partially exploded cross-sectional view of the second embodiment.

FIG. 4 is a partially exploded cross-sectional view of a third embodiment.

FIG. 5 is a partial cross-sectional view of the connected state.

FIG. 6 is an exploded sectional view of a fourth embodiment.

FIG. 7 is an exploded sectional view of a fifth embodiment.

FIG. 8 is an exploded sectional view of a sixth embodiment.

FIG. 9 is a partial cross-sectional view of a conventional example.

[Explanation of symbols]

 1 Lamp 2 Reflector 3 Lamp Socket 4 Lighting Device 4a Igniter 5 Car Body 11 Lamp 12 Input Part 17 Contact Part

Front page continued (72) Inventor Haruo Nagase 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. Hideki Hamada 1048, Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (2)

[Claims] 1. A lamp body mounted on a vehicle body, a reflector plate mounted on the lamp body so that an irradiation direction can be adjusted, and a lamp socket having an input portion and mounted on the reflector plate for mounting a lamp. And a lighting device mounted on the vehicle body, the lighting device having a contact portion slidably in electrical contact with the input portion. 2. The vehicle headlight device according to claim 1, wherein the igniter of the lighting device is provided with the contact portion, and the igniter is fixed to the vehicle body.