JPH0342564Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention is a method of attaching a heat-resistant protector made of metal or the like to the inner surface of a lamp body that is formed into a rectangular thin shape with an opening that is elongated in the horizontal direction. The present invention relates to an improvement in the heat shielding structure of a vehicle lamp that improves heat resistance performance and irradiation range.

[Prior Art] The external design of vehicle lighting equipment such as automobiles constitutes a part of the external design of the car body itself, and in recent years, with its high performance, in particular, vehicle lighting equipment such as front turn signal lamps has become more and more popular. There is a demand for making the design surface of the front lens that is visible on the outside thinner and flatter.

However, the external dimensions of the lamp body are limited by the maximum dimensions of the design surface of the front lens that is integrated with the external design of the vehicle body itself and appears externally, and the light source that must be housed in the lamp body as a vehicle lighting device for automobiles. Since standards for lighting performance have also been specified for lighting equipment, satisfying both requirements means housing a large light source in a relatively small or thin lamp body, making it difficult to use closed vehicle lighting equipment. However, there was a problem that the lamp body was thermally deformed due to heat generated from the light source.

For this reason, vehicle lamps have conventionally been used in which a heat-resistant protector for heat shielding is attached to the inner surface of the lamp body. This heat-resistant protector has a structure in which, for example, both ends of a thin metal plate are bent and inserted and fixed between two hooking edges formed on the inner surface of the lamp body.

[Problem that the invention attempts to solve]

However, in the conventional heat shielding structure, as shown in FIG. 7, although the heat shielding effect of the heat protector 51 is recognized, a part of the lamp body 52 on the opening 52a side blocks the irradiation light from the light source 53. As shown in FIG. 10, a shadow S was generated on the light emitting surface, that is, the lens surface when the light was turned on, which caused a problem in the irradiation performance. In particular, in the case of a rectangular and thin vehicular lamp, the shadow S becomes relatively large, resulting in poor appearance.

Further, as shown in FIGS. 8 and 9, in order to easily insert the heat-resistant protector 51 into the locking edges 55, 55 formed on the lamp body 52 and improve assembly performance, the heat-resistant protector 51 is attached to the lamp body 52 of the heat-resistant protector 51. The one in which a flange 56 is formed by bending the tip end face of the opening 52a downward at a right angle,
Similar to the one shown in FIG. 7, a shadow S as shown in FIG. 10 was formed, reducing the irradiation performance as a vehicle lamp. Therefore, in order to prevent the step H of the locking edges 55, 55 from forming, which would cause the shadow width H' of the shadow S, the step H should be formed with a thickness flush with the inner surface of the lamp body 52. This is also possible, but there are problems such as the need for extra materials.

Furthermore, if the flange 56 is deleted, the flange 5
Although it is possible to prevent the occurrence of the shadow S in part 6,
As shown in FIG. 11, there remained a problem that the latching edges 54, 54 portions formed a shadow S on a part of the light emitting surface during lighting, resulting in poor appearance.

The present invention was devised in view of the above-mentioned problems, and aims to provide a heat shielding structure for a vehicle lamp that improves the irradiation performance of the vehicle lamp without reducing the heat shielding effect. It is.

[Means for solving problems]

Therefore, the heat shielding structure of the vehicle lamp according to the present invention is formed by bending both ends between two latching edges formed in parallel on the inner surface of the lamp body from the opening side toward the rear of the lamp body. In a vehicle lamp having a structure in which a heat-resistant protector having an engaging edge is inserted to insulate heat from a light source, both ends of the rear side of the heat-resistant protector are partially cut out,
The light emitted from the light source is guided from the notch to a bottleneck formed by the engaging edge of the heat-resistant protector and the light is emitted from the opening of the lamp body. It is something.

In addition, a flange is provided on the opening side of the heat-resistant protector, and the flange is bent at an angle such that the light emitted from the light source is reflected onto the front lens surface.

[Effect]

According to the above configuration, the light emitted from the light source is led out from the notch part of the heat resistant protector into the bottleneck formed by the engaging edge formed on the lamp body and the engaging edge of the heat resistant protector. , no shadows appear on the lens surface.

Further, since the light emitted from the light source is reflected by the flange surface formed on the opening side of the heat-resistant protector and radiated to the lens surface, no shadow is generated on the lens surface.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the heat shielding structure for a vehicle lamp according to the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show a heat shielding structure for a vehicle lamp according to the present invention. The vehicle lamp 1 is
A lamp chamber 4 is formed by integrally fixing and sealing the opening of the lamp body 2 with a lens 3, and a light source 6 held in a socket 5 is removably housed inside the lamp chamber 4. The external design of the vehicle is formed integrally with the vehicle body by being assembled into a recess formed in the vehicle body.

Two hooking edges 7, 7 are formed in parallel from the opening 2a side of the inner surface of the lamp body 2 of this vehicle lamp 1 toward the rear portion 2b side of the lamp body 2. A heat-resistant protector 9 having engaging edges 8, 8 formed by bending both ends of a metal plate or the like is inserted and fixed between the hooking edges 7, 7. As shown in FIG. 2, this heat-resistant protector 9 is obtained by cutting out a portion of the engaging edges 8, 8 on the rear 2b side or the opening 2a side of the lamp body 2. The cutout portion guides the light emitted from the light source 6 to the narrow paths T, T formed by the hooking edges 7, 7 and the engaging edges 8, 8 of the heat-resistant protector 9, as shown in FIG. work to do. It should be noted that the hooking edges 8, 8 themselves are thin so that they pass through the fisheye step formed on the lens 3, so that they are hardly noticeable. That is, as shown in FIG. 4, no shadow S is generated on the light emitting surface at the opening 2a of the lamp body 2. Note that the shadow (hatching) on the peripheral edge of the figure is the shadow of the opening edge of the lamp body 2.

FIG. 5 shows a second embodiment of the heat-resistant protector 9, in which the width of the heat-resistant protector 9 on the rear 2b side of the lamp body 2 is gradually narrower than on the opening 2a side. If formed in this way, the heat-resistant protector 9 can be inserted and fixed easily and quickly between the hooking edges 7, 7.

FIG. 6 shows a third embodiment of the heat-resistant protector 9. This has a flange 10 formed on the opening 2a side of the heat-resistant protector 9, and the flange 10 is bent toward the light source 6 side. By bending the flange 10 toward the light source 6 in this way, the light emitted from the light source 6 can be transferred to the flange surface 1.
Since the light can be reflected to 0, shadows will not be generated on the three surfaces of the lens.

Although the present invention has shown an embodiment in which the heat-resistant protector 9 and the retaining edges 7, 7 for fixing it are formed on the upper surface of the lamp body 2, in order to further improve the heat-resistant effect, it is possible to It is appropriate to provide the

[Effect of the invention] Since the heat shielding structure of the vehicle lamp according to the invention is constructed as described above, it is possible to improve the light emitting state appearing on the lens surface without deteriorating the light distribution performance and heat resistance performance. can. In addition, since the rear side of the lamp body of the heat-resistant protector is formed to be thin or gradually tapered, it can be easily inserted and fixed into the two hooking edges, and the assembly process can be performed quickly. It has excellent practical effects after implementation.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view showing an embodiment of the heat shielding structure for a vehicle lamp according to the present invention, Figure 2 is a plan view of a heat protector, and Figure 3 is a front view of the main parts of the heat shielding structure for a vehicle lamp. , FIG. 4 is a schematic diagram showing the light emitting state of the vehicle lamp, FIG. 5 is a plan view showing the second embodiment of the heat-resistant protector, and FIG. 6 is a side sectional view showing the third embodiment of the heat-resistant protector. , FIG. 7 is a side sectional view showing the heat shielding structure of a conventional vehicle lamp, FIG. 8 is a side sectional view showing the heat shielding structure of a conventional vehicle lamp, and FIG.
10 is a schematic diagram showing a light emitting state of the conventional vehicle lamp, and FIG. 11 is a schematic diagram showing the same light emitting state. 2... Lamp body, 6... Light source, 7... Latching edge, 8... Engaging edge, 9... Heat resistant protector, 1
0...Flange.

Claims (1)

[Claims for Utility Model Registration] (1) An engaging edge formed by bending both ends is provided between two hooking edges formed in parallel from the opening side toward the rear of the lamp body on the inner surface of the lamp body. In vehicle lamps that have a structure that inserts a heat-resistant protector to shield heat from the light source,
Both ends of the rear side of the heat-resistant protector are partially cut out, and the light emitted from the light source is led out from the cutout into a narrow passage formed by the engaging edge of the heat-resistant protector and the engaging edge of the heat-resistant protector. A heat shielding structure for a vehicle lamp, characterized in that the heat is emitted from a body opening. (2) Claims for registration of a utility model characterized in that a flange is formed on the opening side of the heat-resistant protector, and the flange is bent at an angle such that the light emitted from the light source is reflected onto the front lens surface. The heat shielding structure of the vehicle lamp according to item 1.