JPH11260108A - Lighting fixture for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the appearance of a lighting fixture for a vehicle when a lamp is lit and not lit. SOLUTION: A lighting fixture 1 for a vehicle is provided with a lens mounting leg 3 installed in the outer circumference of an outer lens 2, a light transmission part 31 mounted in a proper region from the surface of the lens 2a of the lens mounting leg 3 to a housing 4 so as to curve toward the inside of the outer lens, and a day lighting part 32 arranged at the forward end part of the housing side of the light transmission part 31 and at the inside of the light transmission part 31. In this constitution, the reflecting surface 41 installed on the housing 4 reflects external light and light source light, and the reflected light is introduced into the lens mounting leg 3 by the day lighting part 32 and then transmitted by the light transmission part 31 to be emitted outward from the lens surface 2a. This can prevent the generation of a dark part on the lens surface 2a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp such as a headlamp and a tail lamp, and more particularly, to further improve the appearance of the vehicular lamp when the vehicular lamp is turned on and off. is there.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show an example of the structure of a conventional vehicle lamp of this type. First, in a vehicle lamp 90 shown in FIG. Are provided along the outer periphery, and the outer lens 92 is provided.
A lens mounting leg 92b is provided in the vicinity of the outer peripheral edge substantially orthogonal to the lens surface 92a.

[0003] The housing 91 and the outer lens 92
First, the adhesive 93 called hot melt is heated and injected into the lens mounting groove 91a in a molten state, and then the lens mounting leg 92b is inserted into the lens mounting groove 91a. The bonding is performed by solidifying the agent 93 (hot melt) by cooling.

[0006] Further, in a vehicle lamp 80 shown in FIG. 6, a housing-side abutting surface 81 a is provided on the housing 81 side in a ridge shape having a flat top end surface along the outer periphery, and near the outer peripheral edge of the outer lens 82. The top end surface of a lens mounting leg 82b provided substantially perpendicular to the lens surface 82a is also a flat surface, which is a lens-side abutting surface 82c.

When the housing 81 and the outer lens 82 are mounted, for example, the housing-side abutting surface 81a and the lens-side abutting surface 82c are abutted against each other, and are thermally fused by an ultrasonic welding machine or the like. It is to be welded. Note that a hot plate may be used for heat melting the two abutting surfaces 81a and 82c.

[0006]

However, in the vehicle lamps 90, 80 having the above-mentioned conventional construction, the tips of the transparent lens mounting legs 92b, 82b formed integrally with the outer lenses 92, 82 are made of an adhesive. 93, the housing 81, and so on.
When viewing 0 and 80 from the front, that is, from the irradiation direction side, the portion where the lens mounting legs 92b and 82b are provided on the back surface of the outer lenses 92 and 82 as shown in FIG. There is a problem that gives a sense of incongruity.

Particularly, in order to prevent the lens mounting groove 91a or the housing-side abutting surface 81a from being viewed from the front, the lens 92 is provided with dummy lens portions 92c and 82d extending outside the lens mounting legs 92b and 82b. 8
In 2, the appearance of the portions corresponding to the thicknesses of the lens mounting legs 92b and 82b and the portions of the dummy lens portions 92c and 82d are different from each other, causing a problem that further impairs the aesthetic appearance. Had become an issue. 7 is a part of the vehicle body such as a rim, for example.

[0008]

According to the present invention, as a specific means for solving the above-mentioned conventional problems, the outer lens is fixed to a housing in the vicinity of an outer peripheral edge of the outer lens substantially orthogonal to the lens surface. A lens mounting leg for the vehicle, wherein the lens mounting leg is provided at a position of the outermost periphery of the outer lens, and a distance from the lens surface of the lens mounting leg to the housing as a base point. A light guide section that curves toward the inside of the outer lens is provided in an appropriate range, and a light-receiving section that introduces light into the light guide section is located at an end on the housing side of the light guide section and on the inner surface side. It is also possible to solve the problem by providing a vehicular lamp, wherein the housing is provided with a reflecting surface for reflecting light from the light source and external light toward the lighting unit. It is.

[0009]

Next, the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 shows a main part of a vehicular lamp 1 according to the present invention. In this vehicular lamp 1 also, a lens mounting leg 3 is provided integrally with the same member in the vicinity of an outer peripheral edge of an outer lens 2, It is the same as the conventional example in that the lens mounting groove 4a provided on the outer peripheral edge of the housing 4 and the adhesive 5 such as hot melt are used for fastening.

In the present invention, the lens mounting leg 3 is provided at the outermost position of the outer lens 2.
In addition, the lens mounting leg 3 is provided with a light guide section 31 and a lighting section 32.
Is provided with a light reflecting surface 41.

In the following, the structure of the light guide section 31, the light collection section 32, and the light reflection surface 41 will be described in more detail. First, the light guide section 31 is a light collection section from the light reflection surface 41, which will be described later. In addition to radiating light passing through the lens surface 2a of the outer lens 2 from the lens surface 2a, the light also functions as a lens mounting leg 3, so that one end is provided on the lens surface 2a.
The light guide portion 31 is provided with a lighting portion 32 at the other end of the light guide portion 31 on the housing side. I have.

The light reflecting surface 41 is provided at an appropriate position on the housing 4, for example, inside the lens mounting groove 4a.
The light reflecting surface 41 reflects the light from the light source 6 and directs the light toward the lighting part 32, and transmits the outside light transmitted through the outer lens 2 and reaches the light reflecting surface 41. The position and shape of the reflected light are also suitable for directing the light to the lighting unit 32.

The lens mounting leg 3 is provided with an insertion portion 3a in addition to the light guide portion 31 and the lighting portion 32. The insertion portion 3a is provided in the housing 4 in the same manner as the conventional one. Of the outer lens 2 by being inserted into the lens mounting groove 4a of the
And the housing 4.

Next, the operation and effects of the vehicular lamp 1 of the present invention having the above configuration will be described. First, the housing 4 is provided with a light reflecting surface 41, and the lens mounting leg 3 is provided with a daylighting portion 32, so that external light and light from the light source 6 can be introduced into the lens mounting leg 3. Thus, even when the light source 6 is not lit during the day, the light source 6
It is assumed that light is introduced into the lens mounting leg 3 even when the light is turned on.

The lens mounting leg 3 is provided with a light guide section 31 having one end connected to the lighting section 32 and the other end connected to the lens surface 2a. The light introduced into the light guide 3
In this case, the outer frame portion 2b where the lens mounting leg 3 is provided on the back surface of the lens surface 2a also looks bright as shown in FIG. (Refer to FIG. 7 of the conventional example).

At this time, since the shape of the light guide portion 31 is curved toward the inside of the vehicular lamp 1 toward the housing 4, the lens surface 2a is located outside the lens mounting groove 4a. The overhanging dimensions are slightly larger, and thus, when mounted on the vehicle body 7, conceal the lens mounting groove 4 a, eliminating the need for a dummy lens portion conventionally provided for the purpose of concealing.

FIG. 3 shows another embodiment of the vehicular lamp 1 according to the present invention. In the previous embodiment, the housing 4 is provided with a lens mounting groove 4a.
The embodiment has been described with respect to the vehicle lamp 1 having a configuration in which the insertion portion 3a of the lens mounting leg 3 is inserted into the lens leg 3 and adhered with the adhesive 5, but the present invention is applied to the lens leg 3 as shown in this embodiment.
Is provided with a lens-side abutting surface 3b, the housing 4 is provided with a housing-side abutting surface 4b, and the two surfaces a and b can be joined by welding.

At this time, similarly to the previous embodiment, the lens mounting leg 3 may be provided with the light guide portion 31 and the lighting portion 32, and the housing 4 may be provided with the light reflecting surface 41. Since the operations and effects to be performed are completely the same as those of the previous embodiment, the detailed description is omitted here.

FIG. 4 shows still another embodiment of the present invention. This embodiment is an example in which the present invention is applied to a vehicle lamp 1 for lighting such as a headlamp. When the present invention is applied to a headlamp or the like, the housing 4 may be provided with a light reflecting surface. However, since the outer lens 2 may have high transparency, the housing 4 is usually provided with a reflecting mirror 8 and an extension. It is often concealed by the so-called decorative frame 9 and is sometimes difficult to implement.

The reflecting mirror 8 is provided with an aiming mechanism or the like for adjusting an irradiation direction when the reflecting mirror 8 is mounted on a vehicle. The positional relationship with the outer lens 2 is not always constant. In view of this, it is preferable that the light reflecting surface 91 be provided on the decorative frame 9 fixed to the outer lens 2 or the housing 4.

[0021]

As described above, according to the present invention, the lens mounting leg is provided at the position of the outermost periphery of the outer lens, and the lens mounting leg is set at an appropriate range from the lens surface of the lens mounting leg to the housing. Is provided with a light guide portion curved toward the inside of the outer lens, and guides light source light and external light reaching the light reflection surface provided on the housing at a position on the housing side end of the light guide portion on the inner surface side. The exterior lighting and the light source light are reflected by the light reflecting surface provided on the housing, and the reflected light is introduced into the lens mounting leg by the lighting unit. And, by guiding the light with the light guide part and radiating it to the outside from the lens surface, the part of the outer lens where the lens mounting legs were provided on the back of the lens surface looks dark, which makes the viewer uncomfortable. Give rise To eliminate the have the problems that a thing, in which exhibits the excellent effect in improving the appearance of this kind of vehicle lamp.

[0022] In addition, the shape of the light guide portion is curved toward the inside of the vehicular lamp as it goes toward the housing, so that the lens surface has a size slightly larger than the lens mounting groove. In addition, the structure can be simplified by eliminating the need for the dummy lens portion, the light emitting area can be increased, and excellent effects such as improved visibility and improved performance can be achieved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a main part of an embodiment of a vehicular lamp according to the present invention.

FIG. 2 is an explanatory diagram showing a state when the vehicle lamp according to the present invention is viewed from the outside.

FIG. 3 is a cross-sectional view showing another embodiment of the vehicular lamp according to the present invention in a main part.

FIG. 4 is a sectional view showing still another embodiment of the vehicular lamp according to the present invention in a main part.

FIG. 5 is a cross-sectional view showing a main part of a conventional example.

FIG. 6 is a cross-sectional view showing a main part of another conventional example.

FIG. 7 is an explanatory diagram showing a state when a conventional vehicle lamp is viewed from the outside.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Lamp for vehicle 2 ... Outer lens 2a ... Lens surface 2b ... Outer frame part 3 ... Lens mounting leg 3a ... Insertion part 3b ... Lens side butting surface 31 ... Light guide part 32 ... Daylighting part 4 Housing 4a Lens mounting groove 4b Housing side abutting surface 41 Light reflecting surface 5 Adhesive 6 Light source 7 Body 8 Reflecting mirror 9 Decorative frame 91 ...... Light reflecting surface

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hirokuni Osugi 2-9-13-1 Nakameguro, Meguro-ku, Tokyo Inside Stanley Electric Co., Ltd. (72) Inventor Takaki Narumi 2-9-1-13 Nakameguro, Meguro-ku, Tokyo No. Stanley Electric Co., Ltd.

Claims (1)

[Claims] 1. A vehicular lamp in which a lens mounting leg is provided near an outer peripheral edge of an outer lens so as to be substantially orthogonal to a lens surface and for fastening to an housing, wherein the lens mounting leg is connected to the outer lens. A light guide portion that curves toward the inside of the outer lens is provided in an appropriate range from the lens surface of the lens mounting leg as a base point to the housing.
A lighting part for introducing light into the light guiding part is provided at a position on the housing side end of the light guiding part and on the inner surface side, and the housing reflects light source light and external light and is directed toward the lighting part. A vehicular lamp characterized by being provided with a fluctuating reflecting surface.