JPH0741043Y2 - Vehicle headlights - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new vehicle headlight. More specifically, in a large vehicle headlight, the ineffective reflection area of a reflecting mirror, to which the light from a light bulb is not directly projected, also appears to be shining when viewed from the front.

[0002]

2. Description of the Related Art In a headlight for a vehicle, in particular for an automobile, there is a demand for making the headlight large for design reasons. In such a case, the headlight becomes large in the lateral direction.

On the other hand, there is also a demand to reduce the depth of the headlight in order to expand the effective space in the vehicle body.

[0004]

Therefore, the reflecting mirror has to be tilted in the lamp space having a small depth, and the depth of the reflecting mirror cannot be increased so much.
If the effective reflection area for emitting the reflected light substantially forward is enlarged, the depth becomes very large. Therefore, it is impossible to provide an effective reflection area that covers the entire lateral width of the headlight.

Therefore, most of the reflecting mirror must be constructed as an ineffective reflection area from which the light from the light bulb does not radiate directly, and this ineffective reflection area appears as a dark part when viewed from the front at night and looks good. There is a problem of being bad.

[0006]

[Means for Solving the Problems] The vehicle headlamp according to the present invention comprises:
In order to solve the above-mentioned problems, the light reflected directly from the light bulb in the area where the light reflected from the effective reflection area of the reflecting mirror of the lens inner surface is not directly radiated and the light from the light bulb is radiated directly A lens cut that reflects toward the ineffective reflection area is formed, and a reflection film is formed in the ineffective reflection area of the reflecting mirror.

[0007]

Therefore, in the vehicular headlamp of the present invention, the light directly emitted from the light bulb and reflected by the lens cut is reflected by the reflection film in the ineffective reflection area and is emitted toward the front. The part of the lens facing the invalid reflection area also looks shiny, and the entire lens looks shiny and looks good.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the vehicle headlamp of the present invention will be described below with reference to the first embodiment shown in the accompanying drawings.

Reference numeral 2 denotes a lamp housing, which is made of synthetic resin and has a rectangular shape that is long in the left and right when viewed from the front.
It has a concave portion 3 that is open toward the front. And
A mounting groove 4 is formed at the front opening edge of the lamp housing 2 so as to open forward.

Reference numeral 5 denotes a lens, the rear end of which is fitted into the installation groove 4 of the lamp housing 2 and is fixed by adhesion or the like.

Reference numeral 6 denotes a reflecting mirror, which is tiltably provided in a lamp space 7 defined by the lamp housing 2 and the lens 5.

The reflecting mirror 6 has an effective reflection area 8 having a paraboloidal shape in its substantially central portion, and ineffective reflection areas 9 and 9 are formed so as to individually project from the opening edge of the effective reflection area 8 in the left-right direction. Has been done. A reflection film (not shown) is provided on the front surface of both the effective reflection area 8 and the invalid reflection areas 9 and 9.

A light bulb 10 is detachably attached to the central portion of the rear portion of the effective reflection area 8 of the reflecting mirror 6.

Reference numeral 11 denotes a fulcrum shaft projecting forward toward the lower left part of the inner surface of the rear part of the lamp housing 2 when viewed from the front, and a sphere 12 is integrally formed at the front end thereof.

Reference numeral 13 denotes the fulcrum shaft 1 on the rear surface of the reflecting mirror 6.
1 is a sphere receiver supported at a position facing 1 and is made of synthetic resin, and has a spherical concave portion 14 formed on the rear surface thereof.

Then, the spherical portion 12 of the fulcrum shaft 11 is rotatably fitted in the spherical concave portion 14 of the spherical receiver 13, and a spherical joint-shaped rotational fulcrum portion 15 is formed therein.

Reference numeral 16 is an adjusting shaft which is rotatably supported by the lamp housing 2 above the fulcrum shaft 11, and a front half portion thereof is a screw shaft portion 17. And its head 18
Are projected from the rear surface of the lamp housing 2.

Reference numeral 19 denotes the adjusting shaft 1 of the rear surface of the reflecting mirror 6.
6 is a nut body supported at a position opposite to 6 so as to be slightly tiltable, and the screw shaft portion 17 of the adjusting shaft 16 is screwed into the nut body 19. Therefore, when the adjusting shaft 16 is rotated, the screw shaft portion 17 is screwed into or unscrewed from the nut body 19 according to the direction of rotation thereof, whereby the nut body 19 of the reflecting mirror 6 is supported. The distance of the part to the rear of the lamp housing 2 will be changed.

In this way, the space adjusting portion 20 is formed. Although not shown, a gap adjusting portion similar to this 20 is provided at a position separated from the rotation fulcrum portion 15 to the right.

As described above, the reflecting mirror 6 is tiltably supported by the lamp housing by the one rotary fulcrum portion 15 and the two space adjusting portions 20.

Reference numerals 21, 21, ... Denote lens cuts formed in the inner surface of the lens 5 in a region where the reflected light mainly emitted from the light bulb 10 and reflected by the effective reflection region 8 of the reflecting mirror 6 does not enter. These lens cuts 21, 21, ...
The light 22, 22, directly emitted from the light bulb 10 by
Most of the light is reflected toward the ineffective reflection areas 9 and 9, and the light 22, 22, ... Is reflected by the ineffective reflection areas 9 and 9 to face the ineffective reflection areas 9 and 9 of the lens 5. The light is emitted forward from the regions 23, 23.

Therefore, when viewed from the front, the entire lens 5 looks shining, which makes it very attractive.

[0023]

As is apparent from the above description, the vehicle headlamp according to the present invention tiltably supports the reflecting mirror in the lamp space defined by the lamp housing and the lens covering the front surface thereof. A headlamp for a vehicle, in which a light bulb is supported by the reflecting mirror, wherein the reflecting mirror has an effective reflection area in which the light of the light bulb is directly irradiated and an ineffective reflection area in which the light of the light bulb is not directly irradiated, and the inner surface of the lens In the area where the light reflected by the effective reflection area of the reflector is not directly emitted and where the light from the light bulb is directly emitted, a lens cut is formed to reflect the light directly emitted from the light bulb toward the ineffective reflection area of the reflector. A reflective film is formed on the ineffective reflection area of the reflecting mirror.

Therefore, in the vehicle headlight of the present invention,
The light directly emitted from the light bulb and reflected by the lens cut is reflected by the reflective film in the ineffective reflection area and emitted toward the front, so that the part of the lens facing the ineffective reflection area also appears to be shining. The whole thing looks shiny and looks good.

The area where the lens cut is formed is not strictly required to be formed only in the area where the reflected light from the effective reflection area does not enter, but rather slightly to the area where the reflected light from the effective reflection area enters. The effective reflection area does not have to be formed over the entire area where the reflected light does not enter.

In addition, the specific shapes and structures shown in the above embodiments are merely examples of the implementation of the present invention, which limits the technical scope of the present invention. Should not be interpreted.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view showing an example of an embodiment of a vehicle headlight according to the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line II-II of FIG.

[Explanation of symbols]

 1 Vehicle headlight 2 Lamp housing 5 Lens 6 Reflector 7 Lighting space 8 Effective reflection area 9 Invalid reflection area 10 Light bulb 21 Lens cut

Claims (1)

[Scope of utility model registration request] 1. A vehicular headlamp in which a reflector is tiltably supported in a lamp space defined by a lamp housing and a lens covering a front surface of the lamp housing, and a light bulb is supported by the reflector. Has an effective reflection area where the light of the bulb is directly radiated and an ineffective reflection area where the light of the bulb is not radiated directly. A vehicle is characterized in that a lens cut is formed in a region where the light is directly emitted from the light bulb to reflect the light directly emitted from the light bulb toward the invalid reflection region of the reflecting mirror, and a reflection film is formed in the invalid reflection region of the reflecting mirror. Headlight.