JPH083928Y2 - Mark plate lamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an internally illuminated mark plate lamp installed in an automobile.

[Prior Art] In recent automobiles, by illuminating a mark, which is a symbol of a vehicle, at night, fashionability and body identification can be improved, and a high-class feeling of the vehicle can be enhanced to distinguish it from other vehicles. Planning is taking place. Mark plate lamps that perform such mark display include those that simply perform mark display, and the so-called one that is configured to reflect external light (sunlight) in the daytime to form a metal-like mark and to perform back lighting at night. Two types of half mirror type are known. Among them, as the latter mark plate lamp adopting the latter half mirror method, one generally configured as shown in FIGS. 3 to 6 is known. When this is roughly described, 1 is an automobile, and 2 is a rear garnish provided above the bumper 3 on the rear surface side of the automobile. The rear garnish 2 is composed of a mark plate lamp 4 and a decorative plate (outer lens) 5, and a combination lamp 6 formed by integrating a tail light, a direction indicator light, a backward light, etc. is arranged on both sides thereof. ing.

The mark plate lamp 4 is formed in a shallow bottom box shape that is long in the left-right direction and has a body 7 whose front surface is open, a mark lens 8 which covers the front opening of the body 7, and a socket 10 which is arranged in the body 7. The light source 9 including a pair of left and right bulb bulbs and the body 7 located behind the mark lens 8.
The light guide 11 is arranged inside and guides the light emitted from each light source 9 to the mark display portion 12 of the mark lens 8.

The body 7 is made of a synthetic resin molded product, and the rear plate 14 is bent and formed in a V shape so that the cross-sectional shape taken along the line VI-VI of FIG. As a result, the depth is the smallest in the center,
Maximum at both left and right ends. Further, a mark lens mounting portion 15 is integrally formed in the front opening of the body 7 over the entire circumference, and the peripheral edge portion of the mark lens 8 is fitted into the mark lens mounting portion 15, and It is welded by ultrasonic welding or the like. The body 7 is fixed to the lamp body 16 with a set screw 17.

The decoration plate 5 is formed of a translucent synthetic resin or the like and is colored red. An opening 18 that is long in the left-right direction is opened in the central portion on the front surface side, and a large number of small convex lenses ( Alternatively, the diffusing lenses 19 composed of concave lenses are densely formed so that the combination lamps 6 resemble the shape of the adjacent combination lamps 6 and appear as if they are integrally continuous. Further, a metallic coating film layer 20 is applied to the back surface of the decorative plate 5 to prevent the diffusion lens 19 from being soiled, and a fixing portion 21 is integrally provided on the peripheral portion of the back surface so as to project over the entire circumference. The fixing portion 21 is inserted into the U-shaped groove 22a of the decorative plate mounting portion 22 which is integrally provided on the outer peripheral portion of the surface of the lamp body 16, and is fixed by the adhesive 23.

The mark lens 8 is formed of a transparent and colorless synthetic resin into a plate-like body that is long in the left-right direction, and a long oval protrusion 24 that is long in the left-right direction is integrally provided at the central portion on the front surface side. . The projecting portion 24 is exposed to the outside by being fitted into the opening 18 of the decorative plate 5 from the rear with a proper gap, and forms the same plane as the surface of the decorative plate 5. The mark display portion 12 of the mark lens 8 is engraved on the back surface of the mark lens 8 so as to be positioned in good balance,
For example, it is constituted by a concave portion 25 for displaying Roman letters "E" and "D", all the other back surfaces form the same plane, and a ground color portion is formed by forming a light shielding film layer 26 made of red paint. There is. On the other hand, in the mark display section 12,
The translucent metal particle layer 27 is formed by means such as vapor deposition or sputtering. The metal particle layer 27 has translucency by depositing metal particles such as gold powder with a film thickness of about 300 Å to 400 Å with an appropriate gap so that the particles do not contact with each other or overlap each other. There is.

The light guide 11 is made of a transparent synthetic resin such as acrylic resin, and is bent in a V shape so that the front surface is a flat surface and the back surface is in close contact with the back plate 14 of the body 7. The thickness of the central portion in the longitudinal direction is the smallest, and the thickness is gradually increased toward both ends. In addition, the back surface of the light guide 11 is provided with a plurality of small conical recesses 30 for reflecting the light emitted from the light source 9 and entering the light guide 11 forward. The stippled 30 is
A light entrance portion provided on both end faces of the light guide 11 corresponding to the light source 9 in order to make the irradiation light amount per unit area constant and achieve uniform illumination.
It is formed so that the stippling density increases as it recedes from 31.

In such a structure, external light incident on the mark lens 8 hits the metal particle layer 27 and is reflected in the daytime to perform a glittering metallic mark display, and the light from the light source 9 guides the light from the light source 11 at night. Led to the mark display section 12 by
Back light this.

[Problems to be Solved by the Invention] However, in the conventional mark plate lamp 4 as described above, in order to improve the appearance, all of the space between the protrusion 24 of the mark lens 8 and the opening 18 of the decorative plate 5 is provided. Since the gap G is set uniformly around 0.5 mm around the circumference as shown in FIG. 8, muddy water, dust, etc. enter the interior of the decoration plate 5 from this gap G, and There was a problem of soiling the back side. Therefore, the back surface of the decorative plate 5 is protected by the metallic coating film layer 20 to prevent deterioration of the lens performance due to dirt.
There was a drawback that the coating process was increased by one and the manufacturing cost was increased accordingly.

In addition, the conventional lamp of this type has a problem that it lacks in depth or stereoscopic effect and is unattractive.

Therefore, the present invention has been made in order to solve the above-mentioned conventional problems, and the purpose thereof is to eliminate the gap for communicating the inside and outside of the lens with a simple structure and to prevent the inner surface of the lens from being muddy water or dust. While preventing dirt,
An object of the present invention is to provide a mark plate lamp that enhances the appearance by enhancing the depth or stereoscopic effect.

[Means for Solving the Problems] In order to achieve the above object, the present invention arranges a light source, an inner lens, and a light guide in a lamp chamber formed by a body and an outer lens that covers the front surface of the body. The outer periphery of the body and the outer lens is waterproofed, the outer lens of the inner lens is provided with a diffusion lens to resemble an adjacent lamp shape, and a translucent mark display portion is provided in the central portion to prevent light from the light source. Is guided to the mark display portion by the light guide.

[Operation] In the present invention, the body and the outer lens are waterproofly sealed and integrally coupled to each other to prevent muddy water, dust and the like from entering the inner side of the outer lens. The mark display section is illuminated by the light from the light source. Further, the diffusion lens provided on the outer peripheral portion of the inner lens resembles the shape of an adjacent lamp, and the translucent mark display portion provided at the central portion enhances the depth or stereoscopic effect of the lamp.

[Embodiment] Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 is an enlarged sectional view taken along the line II of FIG. 2 showing an embodiment of the mark plate lamp according to the present invention, and FIG. 2 is a front view of a part of the lamp. In the figure, the same components as those shown in the section of the prior art are designated by the same reference numerals and the description thereof will be omitted. In these drawings, in this embodiment, the body 7 and the outer lens 5 are shown.
A light source 9, a light guide 11, and an inner lens 80 made of a transparent synthetic resin are provided in a lamp chamber constituted by.

A concave portion 35 for accommodating the light guide 11 and the light source 9 is provided in the center of the front surface of the body 7. In addition, a U-shaped seal groove that opens to the front is provided on the outer peripheral portion of the front surface of the body 7.
An outer lens mounting portion 39 having 38 is integrally projected. At the center of the front surface of the inner lens 80, there is no mark display part 12 that is internally illuminated and there is no light (no internal illumination).
A mark portion 52 is provided. The mark display section 12 is provided corresponding to the light guide 11, and the mark section 52 is the light guide 11.
It is provided shifted downward. Also, the inner lens 80
The central portion where the mark display portion 12 and the mark portion 52 are provided forms a protrusion 81 by protruding forward, and a red light-shielding coating film layer is formed on the front surface of the protrusion 81. 82 are formed. A diffusing lens 83, which is a small convex lens, is closely provided on the front surface of the inner lens 80 outside the protruding portion 81, thereby resembling the shape of an adjacent lamp.

The outer lens 5 covering the front surface of the body 7 forms a decorative plate together with the inner lens 80. The outer lens 5 is made of a translucent synthetic resin colored in red so that both the front and back surfaces are flat. Layer 75 has been formed. In addition, a continuous annular fixing portion 21 is provided on the outer periphery of the back surface of the outer lens 5.
Are projected integrally. The tip of the fixed portion 21 is inserted into the seal groove 38 and fixed by an adhesive 23 to prevent the body 7 and the outer lens 5.

Other configurations are substantially the same as those of the conventional mark plate lamp shown in FIGS.

In the mark plate lamp 4 having such a structure, since the fixing portion 21 of the outer lens 5 is fixed to the seal groove 38 of the outer lens mounting portion 39 with the adhesive 23, the outer lens mounting of the outer lens 5 is performed. A complete waterproof seal can be provided between the portion 39 and the fixed portion 21. Therefore, muddy water, dust, etc. do not enter the body 7. Further, the projection 24 of the mark lens 8 and the opening of the decorative plate 5 in the conventional lamp shown in FIGS.
There is no gap G between 18 and the entire circumference, and from this point also there is no risk of muddy water, dust, etc. entering the inside.

Further, since the inner lens 80 is arranged behind the outer lens 5 and the mark display portion 12 is provided on the inner lens 80, the mark display portion 12 is provided through the outer lens 5.
Looking at, it is possible to improve the appearance of the mark plate lamp 4 with an excellent depth or stereoscopic effect. Further, since the diffusing lens 83 is provided on the outer peripheral portion of the surface of the inner lens 80, when viewed through the outer lens 5, the inside looks like a glitter, further improving the appearance and resembling other adjacent lamp forms. be able to.

The side wall 81A of the protrusion 81 of the inner lens 80 is visually recognized through the outer lens 5 when the mark plate lamp 4 is viewed from the front, and forms a boundary line that separates the central portion of the outer lens 5 from the outer peripheral portion thereof. Therefore, the fashionability of the mark plate lamp 4 is improved.

[Advantages of the Invention] As described above, the mark plate lamp according to the present invention is waterproofed by the body and the outer lens, so that rainwater, muddy water, dust, etc. can be surely prevented from entering the body. it can. In addition, an inner lens with a mark display part is provided inside the body, and this mark display part is illuminated by the light from the light source, so when the mark display part is viewed through the outer lens, it is excellent in depth and stereoscopic effect. The appearance of the mark plate lamp 4 can be improved. Furthermore, since a diffusion lens is provided on the outer periphery of the surface of the inner lens, the inside looks shiny when viewed through the outer lens, further improving the appearance and resembling other adjacent lamp forms. .

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view taken along the line II of FIG. 2 showing an embodiment of the mark plate lamp according to the present invention, and FIG. 2 is a front view of the main part of the lamp. FIG. 3 is a perspective view of a main part of an automobile equipped with a conventional mark plate lamp, FIG. 4 is a perspective view of the lamp, FIG. 5 is an enlarged sectional view taken along line VV of FIG. 4, and FIG. FIG. 6 is an enlarged sectional view taken along line VI-VI of FIG. 4. 4 ... Mark plate lamp, 5 ... Outer lens,
7 ... Body, 9 ... Light source, 11 ... Light guide, 12 ... Mark display section, 19 ... Diffusion lens, 21 ... Fixing section, 23 ... Adhesive, 38 ... Seal groove, 75 ... … Functional color coating film layer, 80 ……
Inner lens, 83 ... Diffusing lens.

Claims (1)

[Scope of utility model registration request] 1. A light source, an inner lens, and a light guide body are arranged in a lamp chamber formed by a body and an outer lens covering the front surface of the body, and the outer peripheral portions of the body and the outer lens are waterproof-sealed. A diffuser lens is provided on the outer peripheral portion of the inner lens to resemble an adjacent lamp shape, a transparent mark display portion is provided in the central portion, and light from a light source is guided to the mark display portion by the light guide. Characteristic mark plate lamp.