JPS6010002Y2 - Vehicle front light structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lighting device structure that serves both as an automobile headlamp and an interior light.

Headlights, interior lights, turn signal lights, etc. are installed on the front of the car body, so that they do not interfere with night driving.

Among these, the headlamp is a lighting device that illuminates the front at night, and includes two beams: a driving beam (hereinafter referred to as a driving beam) and a passing beam (hereinafter referred to as a passing beam).

The driving beam is used for driving on roads where there are no oncoming vehicles and has a luminous intensity and light distribution that is sufficient to see far away, and the passing beam is a beam that has a luminous intensity and light distribution that is sufficient to see far away. Light distribution.

The conventional automobile front light structure is as shown in Figure 1.
Lamp unit a, which has two filaments for the passing beam and the traveling beam in the main body consisting of a reflector and a lens, is attached to the front of the vehicle in pairs on the left and right.
It consists of a light-type headlight and a pair of interior lights located at the outer and outer ends of the headlight, or as shown in Fig. 2,
Two lamp units containing two filaments, one for the running beam and one for the passing beam) c.
The vehicle consists of a pair of four-lamp headlights installed on the left and right sides of the vehicle, and a pair of interior lights located at the inner and outer ends of the headlights.

However, in the former case, since there are two filaments in one lamp unit, there is a compromise between the passing beam and the traveling beam, and the light distribution characteristics of each beam cannot be fully utilized. It has the disadvantage that the light distribution of the important passing beam, which can be considered under the circumstances, is sacrificed.On the other hand, in the latter case, there is no problem in making use of the light distribution characteristics of each beam, but the headlight c, Since the d and the interior lights are provided separately, there is a problem in that a large space is required to install the lighting equipment.

This invention is intended to solve the above-mentioned problems, and it is possible to obtain good illumination when driving at night without sacrificing the misaligned beams, which are highly important in light distribution, and the installation is easy. This relates to a vehicle front light structure that does not require much space.

That is, the lamp structure of the present invention includes a passing lamp having a single filament for a passing beam in a lamp main body formed of a reflecting mirror and a lens, and a lamp main body formed of a reflecting mirror and a lens. A running/vehicle width display light device having a running beam filament and a vehicle interior display filament inside is placed on the front of the vehicle, a running/vehicle width display light device is placed on the outer end side in the direction of projection, and a passing light device is provided. They are characterized by being placed side by side on the center side in the direction of the interior of the vehicle, and being attached to a pair on the left and right, respectively.

The structure of the lamp according to the present invention will be explained in more detail with reference to the drawings.

FIG. 3 is a sectional view showing the structure of the lighting device provided on the right side of the front of the vehicle according to the present invention.

As shown in the figure, the lamp structure of the present invention includes a reflector 2 having a paraboloid of revolution shape, opening toward the front (upward in the figure), and having a light bulb hole 2a in the center of the bottom surface of the reflector 2; A light bulb 4 having a low beam filament 5 is inserted into the hole 2a of the reflector 2 from the back side of the reflector 2, and is tightened. Attached is a passing lamp 1 fixed with a ring or the like, a reflector 7 having a rotating paraboloid shape and a light bulb hole 7a in the center of its bottom, and an entire opening of the reflector 7. A light bulb 11 having a filament 9 for in-vehicle display and a filament 10 for a running beam is inserted into a separate main body formed by closely contacting a covering lens 8 from the back side of the hole 7a and fixed therein. It is composed of a lighting device 6.

Of these two lamps 1 and 6, the lamp 6 for traveling and mountain climbing is located at the outer edge of the front of the vehicle (on the right side in the figure), and the lamp 1 for passing is located on the protruding center side ( In the figure,
It is installed so that it is located on the left side).

Although not shown, lamps 1 and 6 having a similar structure are installed on the left side of the front of the vehicle.

When the power switch is turned on in the lamp with the above configuration,
An electric current flows through the corresponding filament, and the luminous intensity of the lamp is ensured by the light ray that travels straight forward from the filament and the light ray that hits the rotating paraboloid of the reflector and is reflected forward.

Furthermore, although not shown in the drawings, the passing light 1 is designed with light distribution in such a way that it irradiates diagonally downward and slightly to the left of the front of the vehicle relative to the running beam.

When driving in the dark, first turn on the small light switch in a car equipped with a pair of lamps with the above configuration on the left and right sides of the front.
When this is done, as shown in Figure 4a, the filament 9 for indicating grassy areas lights up, informing oncoming vehicles of the distance between the vehicles of one's own army.

Next, the headlight switch is turned on, and when there is an oncoming vehicle or a vehicle in front, the low beam filament 5 and the grass field display filament 9 are turned on, as shown in FIG.

When there is no oncoming vehicle or vehicle in front, as shown in FIG. 4C, in addition to lighting the passing beam filament 5, the driving beam filament 10 is turned on.

The light distribution of the passing beam filament 5 is, for example, the fifth
As shown in Figure a, the upper end of the maximum luminous intensity band 12 touches the H line, and the center of the maximum luminous intensity band 12 is located slightly to the left of the ■ line, that is, the area below and slightly to the left of the vehicle traveling direction is illuminated most brightly. Make it wet.

On the other hand, in the light distribution of the traveling beam filament 10, for example, as shown in FIG.
Match the intersection of the line and the line ①, that is, make it possible to irradiate the front central part.

Furthermore, when the traveling beam filament is lit, it has a luminous intensity that is the same as that of the passing beam that has been lit in advance, so the luminous intensity is maintained for a sufficient period of time.

In addition, in the figure, the H line is the line of intersection between the horizontal plane that includes the lamp axis (a line that passes through the optical center of the lamp that is parallel to the longitudinal axis of the vehicle) and the vertical plane that is perpendicular to the lamp axis. Representation, U
is above the H line, D is below the H line, R is to the right of the V line, and L is to the left of the V line.

As is clear from the above explanation, the present invention improves light distribution because it is possible to design the lens cut, filament position, reflector shape, etc. of the passing beam to suit the purpose without being constrained by the traveling beam. This makes it possible to meet today's traffic conditions, where the importance of passing beams is increasing.

In addition, since the driving beam filament and the in-vehicle display filament are housed in one lighting device, installation space can be reduced compared to conventional four-lamp lighting devices.
By reducing the number of parts, it is possible to make effective use of space, contribute to a slight reduction in vehicle weight, and has the advantage of being excellent in design.

[Brief explanation of drawings]

Figures 1 and 2 are schematic front views showing the positional relationship of conventional headlights on the front of the vehicle, Figure 3 is a sectional view showing an example of the lamp structure of the present invention, and Figure 4 is a schematic front view showing the positional relationship of headlights of a conventional structure on the front of a vehicle. FIG. 3 is a schematic front view showing an example of lighting of a lamp. FIG. 5 is a schematic diagram showing the light distribution of the lamp of the present invention. In the diagram, 1... Passing lights, 2, 7...
...reflector, 3. 8...Lens, 5,9.
10...Filament, 6...Lighting device for running and displaying.

Claims (1)

[Scope of utility model registration request] A passing light having a single filament for a passing beam in a light having a main body formed by a reflector and a lens; A running/vehicle width indicating light having a display filament is placed on the front of the vehicle, a running/vehicle width indicating light is placed on the outer end side in the direction of the main mountain, and a passing light is placed on the center side in the direction of the display. , a vehicle front light structure characterized by being installed in a pair on the left and right sides.