JPH0343603Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention consists of a headlamp light source reflector that reflects the headlight light of the headlamp light source toward the front of the vehicle, and a side illumination light source. The present invention relates to an improvement of a vehicle headlamp device in which a side illumination lamp light source reflector that reflects side illumination light toward the side of the vehicle is provided in parallel in a housing.

(Prior Art) Various efforts have been made to improve the illumination performance of vehicle lighting devices (see Japanese Patent Publications No. 57-13081 and Japanese Patent Publication No. 57-16443). By the way, as shown in FIG. 3, conventionally, a halogen lamp 3 as a headlight light source and a light bulb 4 as a side illumination light source are provided in the lamp installation chamber 2 of the housing 1, and the headlight light source A multi-lamp type vehicle headlamp device is known in which a reflector 5 for a side illumination lamp and a reflector 6 for a side illumination lamp light source are arranged side by side. Reflective mirrors 5 and 6 have reflective surfaces formed on their inner surfaces. The reflective surface of the headlight light source reflector 5 and the reflective surface of the side illumination light source reflector 6 are as follows:
For example, the shape is a paraboloid of revolution or an ellipsoid, and the headlight light source reflector 5 reflects the headlight of the halogen lamp 3 toward the front of the vehicle, and the side illumination light source reflector 6 reflects the side illumination light from the light bulb 4 toward the side of the vehicle. In this conventional vehicle headlamp device, in order to minimize unevenness in illumination when lighting both the halogen lamp 3 and the light bulb 4, the reflector 6 for the side illumination light source is used. The main optical axis l thereof is configured to face obliquely to the side with respect to the longitudinal direction X of the vehicle. However, in spite of this, in the conventional vehicle headlamp device, when the halogen lamp 3 and the light bulb 4 are turned on and irradiated at the same time, the irradiation luminous intensity distribution characteristic becomes 4th.
The result will be as shown in the figure, and the vehicle front illumination direction A
The light is brightly irradiated in two irradiation directions: and the vehicle diagonal side irradiation direction B, resulting in uneven irradiation.

(Problem to be solved by the invention) Therefore, as shown by the broken line in FIG. In the past, it was extended while being curved, and a reflective surface was formed on this curved extension part 7 to increase the reflection efficiency towards the front of the vehicle, improve the irradiation performance towards the sides of the vehicle, and avoid uneven irradiation. (Refer to Utility Model Publication No. 58-21446). By the way, this type of reflecting mirrors 5 and 6 are
Although it is manufactured by pressing, since the curved extension part 7 extends inward in a direction that intersects with the die cutting direction, a male mold and a female mold are used to form a side illumination lamp light source. The problem is that it is difficult to punch out the reflector 6, and it is difficult to easily produce the reflector 6 for a side illumination lamp light source having a curved extension without significantly changing the configuration of the conventional press die. There is.

(Purpose of the invention) The present invention was devised in consideration of the above circumstances, and its purpose is to direct the light toward the side of the vehicle without causing any hindrance to the production of the reflector for the side illumination lamp light source. It is an object of the present invention to provide a vehicle headlamp device that can improve the reflection efficiency of all the elements and can also be expected to improve uneven illumination.

(Means for Solving the Problems) A vehicle headlamp device according to the present invention includes a headlamp light source reflector that reflects the headlight light of the headlamp light source toward the front of the vehicle, and A side illumination light source reflector having an optical axis directed diagonally to the side with respect to the direction and reflecting side illumination light of the side illumination light source toward the side of the vehicle is disposed within the housing. The headlamp light source reflector has a front extending portion located in front of the side illumination lamp light source reflector in a portion close to the side illumination lamp light source reflector. The front extending portion has a shape that curves and extends toward the side illumination lamp light source reflector and away from the headlamp light source; The surface facing the lamp light source is the reflective side surface, and the outer surface facing the side illumination light source reflector is a reflective surface that reflects the side illumination light toward the side of the vehicle. That is.

(Function) According to this, the outer surface of the forward extending portion of the headlamp light source reflector receives part of the side illumination light from the side illumination light source and is directed toward the side of the vehicle. This means that the directional irradiation light is reflected.

(Example) Hereinafter, an example of the vehicle headlamp device according to the present invention will be described with reference to the drawings.

In Fig. 1, 8 indicates the front part of the vehicle;
A vehicle headlamp device 9 is provided at a side portion of the vehicle front portion 8 in the vehicle width direction, and 10 is a housing of the vehicle headlamp device 9. The lamp installation chamber 11 of the housing 10 includes halogen lamps 12 and 13 as a headlamp light source and a light bulb 14 as a side illumination light source.
and a headlamp light source reflector 1.
5, 16 and a side illumination lamp light source reflecting mirror 17 are provided side by side. The headlamp light source reflector 15 is
The headlight light of the halogen lamp 12 is reflected toward the front of the vehicle, and the headlight light source reflector 16 reflects the headlight of the halogen lamp 13 toward the front of the vehicle, and the headlight light source reflector 16 reflects the headlight of the halogen lamp 13 toward the front of the vehicle. Mirror 17 is light bulb 1
The side illumination light 4 is reflected diagonally to the side with respect to the vehicle longitudinal direction It is configured to face diagonally to improve uneven irradiation when both the halogen lamp 13 and the light bulb 14 are turned on to provide illumination.

The front light source reflector 16 is provided adjacent to the side light source reflector 17, and the headlight light source reflector 16 is located adjacent to the side light source reflector 1.
In the part near 7, this side illumination lamp light source reflector 1 is installed.
It has a front extension part 18 that is located in front of the part 7. The front extending portion 18 is configured to extend in a curved direction toward the side illumination lamp light source reflector 17 and away from the halogen lamp 13 , and the front extending portion 18 has a surface facing the halogen lamp 13 . Reflector 17 for side illumination light source on the opposite side
The outer surface facing the light bulb 14 is a reflective surface 19 that receives a part of the side illumination light from the light bulb 14 and reflects it toward the side of the vehicle. This front extending portion 17 is connected to the headlamp light source reflector 16 of the side illumination lamp light source reflector 17.
The inner structure is visible from the outside through the gap H between the headlight light source reflector 16 and the side illumination light source reflector 17 during illumination. It is made sure that there is no such thing. The headlamp light source reflector 16 has a composite reflector configuration having reflective surfaces on both the inner surface facing the halogen lamp 13 and the outer surface facing the side illumination lamp light source reflector 17. The light source reflector 16 is manufactured using a press mold consisting of a male mold and a female mold, and the headlamp light source reflector 16 is manufactured by bending the front extending portion 18 outward. Because it has an elongated shape, it is possible to perform die cutting without any problems by simply changing the shape of the punching surfaces of the conventional male and female dies, and the press die has been significantly changed compared to the previous model. It can be easily manufactured without having to do anything.

FIG. 2 shows a characteristic diagram of the irradiation light intensity distribution of the vehicle headlamp device according to the present invention. As shown in FIG. Since a part of the side illumination light from the light bulb 4 is reflected laterally by the light bulb 19, the reflection efficiency toward the side of the vehicle is increased, and both the halogen lamp 13 and the light bulb 14 are turned on. This improves the unevenness of irradiation during irradiation, and the second
In the figure, the solid lines indicate isolight curves, the symbol u indicates the upward illumination angle, the symbol d indicates the downward illumination angle, and the shaded area is improved by the vehicle headlamp device according to the present invention. This is an area where In FIG. 2, a broken line m indicates an ideal state in which the optical axis l of the side illumination light source reflector 6 is adjusted to eliminate uneven illumination in a conventional vehicle headlamp device.

(Effect of the invention) As explained above, the present invention includes a headlamp light source reflector that reflects the headlight light of the headlamp light source toward the front of the vehicle, and a headlamp light source reflector that reflects the headlight light of the headlamp light source toward the front of the vehicle. A vehicle in which a side illumination lamp light source reflector having a directed optical axis and reflecting the side illumination light of the side illumination lamp light source toward the side of the vehicle is arranged in parallel in a housing. In the headlamp device, a front extending portion that is located in front of the side illumination lamp light source reflector is provided in a portion of the headlamp light source reflector that is close to the side illumination lamp light source reflector. , this forward extending portion has a shape that curves and extends toward the side illumination light source reflector, and this forward extending portion has a surface opposite to the surface facing the headlamp light source. Since the outer surface facing the side illumination light source reflector is provided with a reflective surface that reflects the side illumination light toward the side of the vehicle,
Without causing any hindrance to the manufacture of the reflector for the side illumination lamp light source, and without causing any hindrance to the manufacture of the illumination mirror for the headlamp light source that is provided side by side with the reflector for the side illumination lamp light source. , it is possible to increase the reflection efficiency toward the sides of the vehicle, and it has the effect of easily improving the unevenness of illumination.
This in turn leads to improved driver visibility and can be expected to improve safety.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the main part configuration of a vehicle headlamp device according to the present invention, FIG. 2 is an illumination luminous intensity distribution characteristic diagram of the vehicle headlamp device shown in FIG. 1, and FIG. 4 is a cross-sectional view showing the configuration of a conventional vehicle headlamp device, and FIG. 4 is an illumination luminous intensity distribution characteristic diagram of the vehicle headlamp device shown in FIG. It is a light intensity distribution characteristic diagram. 9...Vehicle headlight device, 10...Housing, 11...Lamp installation chamber, 13...Halogen lamp, 14...Light bulb, 16...Reflector for headlight light source, 17...Side illumination Reflector for lamp light source, 18...
Front extension part, 19... Reflective surface, l... Optical axis.

Claims (1)

[Scope of utility model registration request] A headlamp light source reflector that reflects headlight light from the headlamp light source toward the front of the vehicle, and a side illumination light source that has an optical axis directed diagonally to the side with respect to the longitudinal direction of the vehicle. A side illumination light source reflector is provided in parallel in the housing to reflect side illumination light toward the side of the vehicle, and the headlamp light source reflector reflects the side illumination light toward the side of the vehicle. A portion close to the light source reflector has a forward extending portion that exists in front of the side illumination lamp light source reflector, and the front extending portion faces toward the side illumination lamp light source reflector. and has a shape that curves and extends in a direction away from the headlamp light source, and the front extending portion is a surface opposite to the surface facing the headlamp light source, and the front extending portion is a surface facing the side illumination light source. A headlamp device for a vehicle, characterized in that an outer surface facing the side is a reflective surface that reflects the side illumination light toward the side of the vehicle.