JP2017174573A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire capable of enhancing beauty by improving appearance, by eliminating a gap between an exterior panel and an outer lens.SOLUTION: A luminaire 10 includes a light source 15, and a first member and a second member for storing the light source 15. The first member is integrally molded by two-color molding of a first material part and a second material part made of a resin material, the first material part is joined to the second member, and the second material part does not transmit radiant light of the light source 15. Here, the first material part is an outer lens 13 for transmitting the radiant light of the light source 15, the second material part is an exterior panel 11, the second member is a housing 14 on which the light source 15 is mounted and fixed. On a rear surface of a flange part 13b which is a portion exposed from the rear surface of the exterior panel 11 in the outer lens 13, the housing 14 is joined.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lighting device.

  In Patent Document 1, a columnar light guide that emits light emitted from a light source toward the front of the lamp, a lens that is disposed in front of the light guide and has a convex portion, and a connection between the lens and the lamp body are concealed. A vehicular lamp is disclosed in which a convex portion of the lens is exposed from the front member.

  In Patent Document 2, a translucent frame that forms a scale portion with a resin material that is translucent and cannot be plated, and can be plated so as to cover the frame surface and the side of the scale portion of the translucent frame There is disclosed a decorative ring comprising a translucent frame and a metallic tone forming part integrally formed by two-color molding with a resin material, and a plating layer plated on the surface of the metallic tone forming part.

JP 2014-154298 A Japanese Patent Laying-Open No. 2015-64287

In a vehicle lighting device, when the bottom surface of the concave outer lens is assembled so as to be exposed from the opening of the exterior panel, the outer peripheral side wall portion of the outer lens having a different thickness can be viewed from the front side of the lighting device as a “front surface”. In this case, the end face of the outer peripheral side wall is reflected on the outer lens, or the joint surface between the outer peripheral side wall of the outer lens and the housing is reflected. End up.
In the technique of Patent Document 1, since the portion of the lens that is visible is a convex portion, and the side surface of the lens is concealed by the front member (exterior panel), it cannot be viewed from the front side of the lighting device. It is possible to avoid a decrease in aesthetics due to the “face”.
However, in the technique of Patent Document 1, it is necessary to provide a gap between the convex portion of the lens and the opening portion of the front member in consideration of the tolerance between the convex portion of the lens and the opening portion of the front member. However, since it is difficult to feel the unity between the lens and the front member, there is a problem that the beauty is impaired.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide an illuminating device that can improve the appearance and enhance the appearance by eliminating the gap between the exterior panel and the outer lens. It is in.

  As a result of intensive studies in order to solve the above-mentioned problems, the present inventors have arrived at each aspect of the present invention as follows.

<First phase>
A first aspect is a lighting device including a light source, and a first member and a second member for housing the light source,
The first member is integrally formed by two-color molding of a first material portion and a second material portion made of a resin material,
The first material part is bonded to the second member;
The second material portion does not transmit the emitted light of the light source.

In the first aspect, since the first material portion and the second material portion are integrally formed by two-color molding, the first material portion is an outer lens that transmits the light emitted from the light source, and the second material portion is an exterior panel. In this case, the outer panel and the outer lens are heat-sealed so as to be in close contact with each other without a gap.
If there is a gap between the exterior panel and the outer lens, the appearance of the gap is poor, and it becomes difficult to feel a sense of unity between the exterior panel and the outer lens.
On the other hand, according to the first aspect, since there is no gap between the exterior panel and the outer lens, the appearance of the lighting device can be improved and the beauty can be enhanced.

Alternatively, the first material portion is a housing to which a light source is attached and fixed, the second material portion is an exterior panel, and the second member is an outer lens that transmits light emitted from the light source, and is exposed from an opening of the exterior panel in the housing. When the outer lens is bonded to the part, only the outer lens is separate from the housing and the outer panel, and the outer lens is fitted into the opening of the outer panel, so that the tolerance between the outer panel and the outer lens is reduced. It is possible to reduce the gap between the exterior panel and the outer lens.
If there is a large gap between the exterior panel and the outer lens, the appearance of the lighting device is impaired due to the poor appearance of the gap.
On the other hand, according to the first aspect, since the gap between the exterior panel and the outer lens is small, the appearance can be improved and the beauty can be enhanced.

<Second phase>
The second aspect is the first aspect,
The first material part is an outer lens that transmits the emitted light of the light source,
The second material part is an exterior panel;
The second member is a housing to which the light source is attached and fixed.
The housing is joined to a portion of the outer lens exposed from the back surface of the exterior panel.

In the second aspect, since the outer lens and the exterior panel are integrally formed by two-color molding, the number of component parts of the lighting device is two points: the outer lens and the exterior panel that are the first member, and the housing that is the second member. become.
On the other hand, when the outer lens, the exterior panel, and the housing are separate parts, the number of component parts of the lighting device is three.
Therefore, according to the second aspect, compared to the case where the outer lens, the exterior panel, and the housing are separate components, the assembly process of the components is reduced, so that the manufacturing cost can be reduced.

<Third phase>
According to a third aspect, in the second aspect, a joint portion between the outer lens and the housing is disposed on a back surface side of the exterior panel.
In the third aspect, since the joint portion between the outer lens and the housing is concealed by the exterior panel and is not visible from the front side of the lighting device, the appearance of the lighting device is prevented from being impaired due to the poor appearance of the joint portion. it can.

<4th phase>
According to a fourth aspect, in the third aspect, a part of the outer lens is extended to the back surface of the exterior panel, and the housing is joined to the extended part of the outer lens.
In the fourth aspect, the contact area between the outer lens and the exterior panel is increased by the portion of the outer lens that extends to the back surface of the exterior panel, so that the outer lens and the exterior panel can be firmly heat-sealed and fixed.
Further, in the fourth aspect, since the housing is joined to the extended part of the outer lens, the joined part of the outer lens and the housing is completely hidden by the exterior panel. It can be obtained more reliably.

<5th aspect>
In a fifth aspect, in the second to fourth aspects, the surface of the outer lens protrudes from the surface of the exterior panel.
In the fifth aspect, when a metal thin film is formed on the surface of the exterior panel using the plating method or the PVD method, the metal thin film is locked by the side surface of the outer lens, and the end of the metal thin film is extended to the surface of the outer lens. Can be prevented.
If the end of the metal thin film rides on the surface of the outer lens, the end of the metal thin film becomes burr-like, so that the person who touched it may be injured and the appearance of the lighting device is impaired due to poor appearance However, according to the fifth aspect, the above disadvantage can be avoided.

<6th phase>
According to a sixth aspect, in the second to fifth aspects, the side surface of the outer lens is formed in a tapered shape that is inclined so as to spread from the surface of the outer lens in a skirt shape.
In the sixth aspect, since the contact area between the outer lens and the exterior panel increases, the outer lens and the exterior panel can be firmly heat-sealed and fixed.

<Seventh aspect>
According to a seventh aspect, in the sixth aspect, a joint portion between the outer lens and the housing is disposed on a back surface side of a tapered portion of the outer lens.
In the seventh aspect, since the joint portion between the outer lens and the housing is completely concealed by the exterior panel, the action and effect of the third aspect can be obtained more reliably.

<Eighth aspect>
The eighth aspect is the first aspect,
The first material part is a housing to which the light source is attached and fixed,
The second material part is an exterior panel;
The second member is an outer lens that transmits the emitted light of the light source,
The outer lens is bonded to a portion of the housing exposed from the opening of the exterior panel.

  In the eighth aspect, since the housing and the exterior panel are integrally formed by two-color molding, the number of component parts of the lighting device is two points: the housing and exterior panel as the first member, and the outer lens as the second member. Therefore, the same actions and effects as in the second aspect can be obtained.

<9th phase>
A ninth aspect includes a metal thin film formed on at least a surface of the second material portion in the first to eighth aspects.
In the ninth aspect, since the metal thin film blocks the emitted light of the light source, even when a transparent resin material is used for the second material portion, the second material portion can be prevented from transmitting the emitted light of the light source. .
In the ninth aspect, the beauty of the lighting device can be enhanced by the gloss and light reflectivity of the metal thin film.

<10th aspect>
A tenth aspect is the ninth aspect, wherein the first material portion is made of a resin material in which the metal thin film is difficult to form.
In the tenth aspect, when a metal thin film is formed on the first member using a plating method or a PVD method, the metal thin film is prevented from being formed on the first material portion, and only on the second material portion. Can be formed, and the action and effect of the ninth aspect can be obtained with certainty.

The end view (end view of the XX arrow section shown in Drawing 2) of the longitudinal section of lighting installation 10 of the 1st embodiment which materialized the present invention. The front view of the illuminating device 10. FIG. The end view of the longitudinal cross-section for demonstrating the manufacturing method of the illuminating device 10. FIG. The end view of the longitudinal section of the illuminating device 20 of 2nd Embodiment which actualized this invention (end view of the XX arrow cross section shown in FIG. 5). The front view of the illuminating device 20. FIG. The end view of the longitudinal cross-section for demonstrating the manufacturing method of the illuminating device 20. FIG. The end view of the longitudinal section of the illuminating device 30 of 3rd Embodiment which actualized this invention (end view of the XX arrow cross section shown in FIG. 2).

Hereinafter, embodiments embodying the present invention will be described with reference to the drawings. In each embodiment, the same constituent members and constituent elements are denoted by the same reference numerals, and redundant description of the same contents is omitted.
Moreover, in each drawing, in order to make the explanation easy to understand, the dimensional shape and arrangement location of the constituent members of each embodiment are schematically illustrated in an exaggerated manner, and the dimensional shape and arrangement location of each constituent member are the real thing. May not always match.

<First Embodiment>
As shown in FIGS. 1 and 2, the illumination device 10 of the first embodiment includes an exterior panel 11 (through hole 11a), metal thin films 12a and 12b, an outer lens 13 (convex portion 13a and flange portion 13b), a housing 14, The light source 15, the joint part J, the taper-shaped part T, etc. are provided, and are used as a vehicle exterior lighting device (for example, a fog lamp).

The exterior panel 11 has a long plate shape and includes a through hole 11a. A metal thin film 12a is formed on the front surface (front surface) of the exterior panel 11, and a metal thin film 12b is formed on the back surface (back surface) of the exterior panel 11. .
The outer lens 13 includes a convex portion 13a and a flange portion 13b, and is integrally formed with the exterior panel 11 by two-color molding (double molding, different material molding).
The surface of the convex portion 13a is flat, and a flange-like flange portion 13b projects from the side surface of the convex portion 13a. The side surface of the convex portion 13a forms an obtuse angle with respect to the surface of the convex portion 13a. The back surface of the flange portion 13 b is flush with the flat back surface of the outer lens 13.

The convex portion 13 a of the outer lens 13 is fitted into the through hole 11 a of the exterior panel 11, the surface of the convex portion 13 a slightly protrudes from the surface of the exterior panel 11, and the flange portion 13 b of the outer lens 13 is in contact with the back surface of the exterior panel 11. The back surface of the outer lens 13 including the flange portion 13 b is exposed from the back surface of the exterior panel 11.
The metal thin film 12 b is formed in a portion exposed from the flange portion 13 b of the outer lens 13 on the back surface of the exterior panel 11.

The housing 14 has a long box shape with the front side opened, and a plurality of light sources 15 are fixedly attached to the bottom surface of the housing 14.
The plurality of light sources 15 are arranged at intervals in the longitudinal direction of the illumination device 10 at locations facing the convex portions 13 a of the outer lens 13.
The emitted light of each light source 15 passes through the convex portion 13a of the outer lens 13 and is irradiated to the front side along the longitudinal direction of the illumination device 10.

The front end portion of the outer peripheral side wall of the housing 14 is bonded and fixed to the back surface of the flange portion 13b of the outer lens 13 by welding or adhesion.
If the opening of the housing 14 is completely closed by the outer lens 13 to form a liquid-tight structure, the light source 15 can be protected from rainwater and the reliability of the lighting device 10 can be improved.

[Constituent Member of Lighting Device 10]
The exterior panel 11 is formed of a resin material that can be molded in two colors with the outer lens 13 and can form the metal thin films 12a and 12b. Examples of the resin material include ABS (Acrylonitrile Butadiene Styrene), PP (PolyPropylene), and AES (AES). Acrylonitrile Ethylene Styrene) and ASA (Acrylate Styrene Acrylonitrile).
Of the resin materials for the exterior panel 11, ABS is most suitable because it is inexpensive and easy to plate, has excellent injection moldability and high rigidity.

  The metal thin films 12a and 12b are made of a light reflective thin film of a metal material (for example, tin, silver, gold, chrome, etc.) formed by plating or PVD (Physical Vapor Deposition).

The outer lens 13 can be molded with the exterior panel 11 in two colors, and it is difficult to form the metal thin films 12a and 12b on the surface thereof. The outer lens 13 is made of a resin material having sufficient translucency. PC (Polycarbonate), PMMA (Polymethyl methacrylate), PET (Polyethylene Terephthalate) and the like.
Of the resin materials for the outer lens 13, PC is most suitable because it is inexpensive, has excellent injection moldability and weather resistance, has high transparency, and is difficult to plate.

The housing 14 is made of a resin material that can be welded or bonded to the outer lens 13 and is integrally formed by injection molding.
The light source 15 may be any light source as long as a sufficient amount of light can be obtained. Examples of the light source include a semiconductor light emitting element (for example, an LED (Light Emitting Diode) chip, an EL (Electro Luminescence) chip, an LD). (Laser Diode) chips, etc.), light bulbs, fluorescent lights, etc.

[Manufacturing Method of Lighting Device 10]
First, as shown in FIG. 3A, the exterior panel 11 and the outer lens 13 are integrally formed by two-color molding.
That is, in the two-color molding, a single injection molding machine is used, the primary mold and the common mold are clamped and the outer lens 13 of the primary side molded product is injection molded, and then only the primary mold is removed and the common mold is removed. With the outer lens 13 left, the secondary mold and the common mold are clamped, and the exterior panel 11 of the secondary side molded product is injection-molded, so that the exterior panel 11 and the outer lens 13 made of different resin materials have no gap. Heat-sealed so as to be in close contact.

According to the two-color molding, as compared with the case where the exterior panel 11 and the outer lens 13 are assembled after injection molding separately, the assembly process is unnecessary, and therefore the manufacturing cost can be reduced.
Also, according to the two-color molding, the outer lens 13 previously molded by injection molding is prevented from being deformed or damaged as compared with the case where the outer lens 13 is subjected to insert molding when the outer panel 11 is injection molded. In addition to increasing the degree of adhesion between the outer lens 13 and the outer lens 13, it is possible to reduce the manufacturing cost because only one injection molding process is required.

Next, as shown in FIG. 3B, metal thin films 12a and 12b are formed on the front and back surfaces of the exterior panel 11 exposed from the outer lens 13 using a plating method.
Here, if the resin material of the outer lens 13 is made of a hard-plating PC and the resin material of the exterior panel 11 is an easily-platable ABS, the metal thin film 12a is formed only on the front and back surfaces of the exterior panel 11 without using a mask or the like. , 12b can be formed.
Subsequently, as shown in FIG. 3C, when the housing 14 to which the light source 15 is attached and fixed is attached and fixed to the outer lens 13, the lighting device 10 is completed.

[Operations and effects of the first embodiment]
According to the illumination device 10 of the first embodiment, the following actions and effects can be obtained.

[1-1] In the lighting device 10, since the outer lens 13 (first material portion) and the exterior panel 11 (second material portion) are integrally formed by two-color molding, the exterior panel 11 and the outer lens 13 are in close contact with each other without a gap. It is heat-sealed so that it will be in the state.
If there is a gap between the exterior panel 11 and the outer lens 13, the appearance of the gap is poor, and it is difficult to feel a sense of unity between the exterior panel 11 and the outer lens 13, and the aesthetic appearance of the lighting device 10 is impaired.
On the other hand, in the illuminating device 10, since there is no gap between the exterior panel 11 and the outer lens 13, the appearance can be improved and the beauty can be enhanced.

[1-2] Since the exterior panel 11 and the outer lens 13 are integrally formed by two-color molding, the number of component parts of the lighting device 10 is such that the exterior panel 11 and the outer lens 13 (first member) and the housing 14 (second 2 points.
On the other hand, when the exterior panel 11, the outer lens 13, and the housing 14 are separate parts, the number of component parts of the lighting device is three.
Therefore, according to the illuminating device 10, compared with the case where the outer lens 13, the exterior panel 11, and the housing 14 are separate components, the assembly process of the components is reduced, so that the manufacturing cost can be reduced.

  [1-3] As shown in FIG. 1, the joint portion J between the outer lens 13 and the housing 14 is disposed on the back side of the exterior panel 11, so the joint portion J is concealed by the exterior panel 11, and the lighting device 10. Since the joint portion J becomes invisible from the front side of the, the appearance of the lighting device 10 can be prevented from being damaged by the poor appearance of the joint portion J.

[1-4] A flange portion 13b, which is a part of the outer lens 13, is extended to the back surface of the exterior panel 11, and a housing 14 is joined to the back surface of the flange portion 13b, and the outer lens 13 and the exterior panel 11 are joined by the flange portion 13b. Since the contact area increases, the outer lens 13 and the exterior panel 11 can be firmly heat-sealed and fixed.
Further, as shown in FIG. 1, since the housing 14 is joined to the back surface of the flange portion 13b, the joint portion J of the outer lens 13 and the housing 14 is completely concealed by the exterior panel 11. 3] can be obtained more reliably.

[1-5] Since the convex portion 13a of the outer lens 13 protrudes from the surface of the exterior panel 11, the metal thin film 12a formed on the surface of the exterior panel 11 is locked by the side surface of the convex portion 13a, and the metal thin film 12a It is possible to prevent the end of the lens from extending to the surface of the outer lens 13 and climbing up.
If the end of the metal thin film 12a rides on the surface of the outer lens 13, the end of the metal thin film 12a becomes burr-like, so that the person who touched it may be injured, and the aesthetic appearance of the lighting device 10 is not good due to poor appearance. However, according to the illuminating device 10, the said fault can be avoided.

  [1-6] Since the side surface of the convex portion 13a of the outer lens 13 is formed in a linear taper shape that forms an obtuse angle with respect to the surface of the convex portion 13a and spreads in a skirt shape, the outer lens 13 and the exterior Since the contact area of the panel 11 increases, the outer lens 13 and the exterior panel 11 can be firmly heat-sealed and fixed.

[1-7] Since the metal thin film 12a formed on the surface of the exterior panel 11 blocks the emitted light from the light source 15, the exterior panel 11 emits light from the light source 15 even when a transparent resin material is used for the exterior panel 11. It is possible to prevent light from being transmitted.
Moreover, the beauty | look of the illuminating device 10 can be improved with the glossiness and light reflectivity of the metal thin film 12a.

  In addition, when forming a metal thin film by the plating method or the PVD method, the metal thin films 12 a and 12 b are simultaneously formed on the front and back surfaces of the exterior panel 11. However, since it is not necessary to form the metal thin film 12b on the back surface of the exterior panel 11, the metal thin film 12b may not be formed by masking the back surface of the exterior panel 11.

  [1-8] The outer lens 13 is made of a resin material in which the metal thin films 12a and 12b are difficult to form. When forming 12b, it becomes possible to prevent the metal thin films 12a and 12b from being formed on the outer lens 13, and to form the metal thin films 12a and 12b only on the exterior panel 11. [1-8] The action and effect of can be obtained with certainty.

Second Embodiment
As shown in FIGS. 4 and 5, the lighting device 20 of the second embodiment includes an exterior panel 21 (opening 21a, frame body 21b), a housing 22 (outer peripheral side wall 22a), an outer lens 23, a metal thin film 12a, 12b, a light source 15 and the like, and is used as a vehicle exterior lighting device.

The exterior panel 21 has a long plate shape and is provided with an opening 21a. On the back surface of the exterior panel 21, a frame-shaped frame body portion 21b surrounding the long rectangular opening 21a is projected.
The housing 22 has a long box shape with the front side opened, and is integrally formed with the exterior panel 21 by two-color molding.
The outer peripheral side wall portion 22 a of the housing 22 is fitted to the frame body portion 21 b of the exterior panel 21.
The front end portion of the outer peripheral side wall portion 22 a of the housing 22 is buried in the opening portion 21 a of the outer panel 21, and a step due to the opening portion 21 a is formed between the front end portion of the outer peripheral side wall portion 22 a and the surface of the outer panel 21. Has been.

The outer lens 23 has a long flat plate shape and is fitted into the opening 21a of the exterior panel 21, and the outer peripheral edge of the back surface of the outer lens 23 is joined to the tip of the outer peripheral side wall 22a of the housing 22 by welding or bonding. It is fixed.
The metal thin film 12a is formed on the surface of the exterior panel 21 and the inner surface of the opening 21a.
The metal thin film 12b is formed on the back surface of the exterior panel 21 and the outer peripheral surface and the front end surface of the frame body portion 21b.

A plurality of light sources 15 are fixedly attached to the bottom surface of the housing 22.
The plurality of light sources 15 are arranged at intervals in the longitudinal direction of the lighting device 20 at locations facing the outer lens 23.
The emitted light of each light source 15 passes through the outer lens 23 and is irradiated to the front side along the longitudinal direction of the illumination device 20.
The opening of the housing 22 has a liquid-tight structure that is completely closed by the exterior panel 21 and the outer lens 23, so that the light source 15 is protected from rainwater and the reliability of the lighting device 20 is enhanced.

[Constituent Member of Lighting Device 20]
The exterior panel 21 is formed of a resin material that can be molded in two colors with the housing 22 and can form the metal thin films 12a and 12b. The resin material of the exterior panel 11 of the first embodiment can be used as the resin material. Good.
The housing 22 can be molded in two colors with the exterior panel 21 and is made of a resin material that is difficult to form the metal thin films 12a and 12b. The housing 22 is made of a resin material having sufficient translucency. The resin material of the outer lens 13 of the first embodiment may be used.
The outer lens 23 is made of a resin material that can be welded or bonded to the housing 22 and has sufficient translucency, and the resin material of the outer lens 13 of the first embodiment may be used as the resin material.

[Manufacturing Method of Lighting Device 20]
First, as shown in FIG. 6A, the exterior panel 21 and the housing 22 are integrally formed by two-color molding.
Next, as shown in FIG. 6B, metal thin films 12a and 12b are formed on the front and back surfaces of the exterior panel 21 exposed from the housing 22 by using a plating method or a PVD method.
Subsequently, as shown in FIG. 6C, after the light source 15 is attached and fixed to the bottom surface of the housing 22, the outer lens 23 is attached and fixed to the housing 22, thereby completing the lighting device 20.

[Operation and Effect of Second Embodiment]
According to the illuminating device 20 of 2nd Embodiment, the following effects can be obtained.

[2-1] In the lighting device 20, the housing 22 (first material portion) and the exterior panel 21 (second material portion) are integrally formed by two-color molding, and the distal end portion of the outer peripheral side wall portion 22a of the housing 22 ( The rear surface of the outer lens 23 is joined to a portion of the housing 22 exposed from the opening 21a of the exterior panel 21.
That is, only the outer lens 23 (second member) is separate from the outer panel 21 and the housing 22 (first member), and the outer lens 23 is fitted into the opening 21 a of the outer panel 21. The tolerance between the outer lens 21 and the outer lens 23 can be reduced, and the gap between the exterior panel 21 and the outer lens 23 can also be reduced.
If there is a large gap between the exterior panel 21 and the outer lens 23, the appearance of the lighting device 20 is impaired due to the poor appearance of the gap.
On the other hand, in the illuminating device 20, since the clearance between the exterior panel 21 and the outer lens 23 is small, the appearance can be improved and the beauty can be enhanced.

[2-2] Since the exterior panel 21 and the housing 22 are integrally formed by two-color molding, the number of components of the lighting device 20 is such that the exterior panel 21 and the housing 22 (first member) and the outer lens 23 (second 2 points.
On the other hand, when the outer lens 23, the exterior panel 21, and the housing 22 are separate components, the number of component parts of the lighting device is three.
Therefore, according to the illuminating device 20, compared with the case where the exterior panel 21, the housing 22, and the outer lens 23 are separate components, the assembly process of the components is reduced, so that the manufacturing cost can be reduced.

[2-3] Since the metal thin film 12a formed on the surface of the exterior panel 21 blocks the light emitted from the light source 15, the exterior panel 21 emits light from the light source 15 even when a transparent resin material is used for the exterior panel 21. It is possible to prevent light from being transmitted.
Moreover, the beauty | look of the illuminating device 20 can be improved with the glossiness and light reflectivity of the metal thin film 12a.

<Third Embodiment>
As shown in FIGS. 2 and 7, the illumination device 30 of the third embodiment includes an exterior panel 11 (through hole 11a), metal thin films 12a and 12b, an outer lens 13, a housing 14, a light source 15, a joint portion J, and a tapered shape. A portion T or the like is provided and used as a vehicle exterior lighting device.

The illumination device 30 of the third embodiment is different from the illumination device 10 of the first embodiment in that the flange portion 13b of the outer lens 13 is omitted and the entire side surface of the outer lens 13 is a tapered portion T. .
And the front-end | tip part of the outer peripheral side wall of the housing 14 is joined and fixed to the outer periphery part of the back surface of the outer lens 13 by welding or adhesion | attachment.
Therefore, according to 3rd Embodiment, the effect | action and effect except said [1-4] can be acquired among the said effect | action and effect of 1st Embodiment.
Since the tapered portion T of the outer lens 13 in the third embodiment functions in the same manner as the flange portion 13b of the outer lens 13 in the first embodiment, the same as [1-4] in the third embodiment. Actions and effects can be obtained.

  Moreover, in 3rd Embodiment, since the junction part J of the outer lens 13 and the housing 14 is arrange | positioned at the back surface side of the taper-shaped part T of the outer lens 13, the junction part J is completely hidden by the exterior panel 11. Thus, the operation and effect of [1-3] of the first embodiment can be obtained more reliably.

<Another embodiment>
The present invention is not limited to the above-described embodiments, and may be embodied as follows. Even in this case, operations and effects equivalent to or higher than those of the above-described embodiments can be obtained.

[A] The metal thin films 12 a and 12 b may be omitted, and the exterior panel 11 may be formed of an opaque resin material that does not transmit the light emitted from the light source 15.
[B] The metal thin films 12 a and 12 b may be replaced with an opaque coating that does not transmit the light emitted from the light source 15.
[C] In the first embodiment, the tapered portion T of the outer lens 13 is not limited to a linear tapered shape, and may be any tapered shape as long as it is inclined so as to spread from the surface of the outer lens 13 in a skirt shape. May be.

<Explanation of terms>
Correspondence between the constituent elements described in [Claims] and [Means for Solving the Problems] and the constituent members described in [Mode for Carrying Out the Invention] is as follows.

The “first member” corresponds to the exterior panel 11 and the outer lens 13 in the first embodiment and the third embodiment, and corresponds to the exterior panel 21 and the housing 22 in the second embodiment.
The “second member” corresponds to the housing 14 in the first embodiment and the third embodiment, and corresponds to the outer lens 23 in the second embodiment.
The “first material portion” corresponds to the outer lens 13 in the first embodiment and the third embodiment, and corresponds to the housing 22 in the second embodiment.
The “second material portion” corresponds to the exterior panel 11 in the first embodiment and the third embodiment, and corresponds to the exterior panel 21 in the second embodiment.

  The present invention is not limited to the description of each aspect and each embodiment. Various modifications are also included in the present invention as long as those skilled in the art can easily conceive without departing from the scope of the claims. The contents of publications and the like specified in the present specification are all incorporated by reference.

DESCRIPTION OF SYMBOLS 10, 20, 30 ... Illuminating device 11, 21 ... Exterior panel 12a, 12b ... Metal thin film 13, 23 ... Outer lens 13a ... Convex part 13b ... Flange part 14, 22 ... Housing 15 ... Light source J ... Joint part T ... Tapered part

Claims (10)

A light source;
A lighting device comprising a first member and a second member for housing the light source,
The first member is integrally formed by two-color molding of a first material portion and a second material portion made of a resin material,
The first material part is bonded to the second member;
The second material unit is an illumination device that does not transmit the emitted light of the light source. The first material part is an outer lens that transmits the emitted light of the light source,
The second material part is an exterior panel;
The second member is a housing to which the light source is attached and fixed.
The housing is joined to a portion exposed from the back surface of the exterior panel in the outer lens.
The lighting device according to claim 1. The joint portion between the outer lens and the housing is disposed on the back side of the exterior panel.
The lighting device according to claim 2. A portion of the outer lens extends to the back surface of the exterior panel, and the housing is joined to the extended portion of the outer lens.
The lighting device according to claim 3. The surface of the outer lens protrudes from the surface of the exterior panel,
The illuminating device as described in any one of Claims 2-4. A side surface of the outer lens is formed in a tapered shape that is inclined so as to spread from the surface of the outer lens in a skirt shape.
The illumination device according to any one of claims 2 to 5. The joint portion between the outer lens and the housing is disposed on the back side of the tapered portion of the outer lens.
The lighting device according to claim 6. The first material part is a housing to which the light source is attached and fixed,
The second material part is an exterior panel;
The second member is an outer lens that transmits the emitted light of the light source,
The outer lens is joined to a portion exposed from the opening of the exterior panel in the housing,
The lighting device according to claim 1. A metal thin film formed on at least the surface of the second material portion;
The illuminating device as described in any one of Claims 1-8. The first material portion is made of a resin material that is difficult to form the metal thin film.
The lighting device according to claim 9.

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