JP2021066390A - Lighting device - Google Patents

Abstract

To provide a lighting device which enables more uniform light emission and enables exchange of a light guide body.SOLUTION: A lighting device 30 includes: a box shaped housing 31 having an opening 33; a translucent panel 50 which is disposed so as to cover the opening 33 and has translucency; a rod-like light guide rod 42 disposed in a space enclosed by the housing 31 and the translucent panel 50; and a light source 41 disposed at the base end part 43 side of the light guide rod 42. The translucent panel 50 has a first rib 51 which is continuously erected along an axial direction of the light guide rod 42 toward the housing 31. The light guide rod 42 is continuously held along the axial direction by a tip of the first rib 51 and an inner surface of the housing 31.SELECTED DRAWING: Figure 3

Description

The present invention relates to a lighting device.

Conventionally, as a lighting device, the one described in Patent Document 1 is known. In the lighting device described in Patent Document 1, a locking projection is used to lock the rod-shaped light guide body to the housing. A plurality of locking projections are arranged at intervals along the axial direction of the light guide, and when the light guide is pushed between the locking projection and the housing, the light guide is locked to the housing. Can be done.

Japanese Unexamined Patent Publication No. 2014-71978

However, in the configuration disclosed in Patent Document 1, since a part of the surface of the light guide body is covered with the locking projections, the light emitted from the light guide body is blocked by the locking projections at that portion. On the other hand, since the emitted light is not blocked in the portion not covered by the locking projections, the light emission of the light guide in the axial direction is uneven due to the presence of the locking projections.

Further, after locking the light guide body to the housing, the lighting device was completed through a process of closing the opening of the housing with a panel having translucency by ultrasonic welding or the like, but the light guide body was completed after the panel was attached. When a defect such as a scratch was found, only the light guide could not be replaced, so the entire lighting device had to be discarded.

The present invention has been completed based on the above circumstances, and one of the objects of the present invention is to provide a lighting device capable of more uniform light emission. Another object of the present invention is to provide a lighting device in which the light guide body can be replaced even after the opening of the housing is closed.

The illuminating device disclosed herein is surrounded by a box-shaped housing having an opening, a translucent panel arranged so as to cover the opening, and the housing and the translucent panel. It is a lighting device including a rod-shaped light guide body arranged in a space and a light source arranged on the base end side of the light guide body. The translucent panel has a first rib that is continuously erected toward the housing along the axial direction of the light guide, and the light guide has a tip of the first rib and the light guide. It is continuously held along the axial direction by the inner surface of the housing.

In the lighting device having the above configuration, the light guide body is held between the first ribs that are continuously erected along the axial direction of the light guide body from the translucent panel toward the housing and the inner surface of the housing. Will be done. In this way, the light guide will come into contact with the first rib and the inner surface of the housing at any position in the axial direction. That is, since the positional relationship between the light guide body and the first rib and the housing in contact with the light guide body does not change regardless of the position in the axial direction, the occurrence of light unevenness in the axial direction is suppressed and more uniform light emission is performed. realizable.

Further, in the lighting device having the above configuration, in holding the light guide body, the first rib and the inner surface of the housing are used instead of the locking projections (hook-shaped claws). Generally, in order to form a locking projection by injection molding, a slide mold capable of undercutting must be used, which complicates the structure of the mold. Therefore, with the above configuration, the locking projection becomes unnecessary, and the structure of the mold can be simplified.

In the above configuration, the translucent panel has a second rib that is continuously erected toward the housing along the axial direction of the light guide body, and the light guide body has the first rib. , The second rib, and the inner surface of the housing.

With such a configuration, the light guide can be held by the second rib in addition to the inner surface of the housing and the first rib. As a result, the light guide can be held from more directions, and it is possible to prevent the light guide from being unintentionally displaced due to vibration of the lighting device or the like.

In the above configuration, the housing has a third rib that is continuously erected along the axial direction toward the translucent panel, and the light guide body is each of the ribs and the inner surface of the housing. Can be retained by.

With such a configuration, since the light guide can be held from more directions, it is possible to prevent the light guide from being unintentionally displaced due to vibration of the lighting device or the like. Further, since the light guide body is held not only by the first rib and the second rib erected on the translucent panel but also by the third rib erected on the housing facing the translucent panel, the light guide body is provided. The position where it is held can be any position between the translucent panel and the housing. As a result, the height of each rib can be reduced as compared with the case where the ribs are arranged only on the translucent panel side. Generally, in injection molding, if the height of the ribs erected on a flat surface is large, sink marks and voids are likely to occur, which makes molding difficult. Therefore, by reducing the height of each rib as such a configuration, it becomes easy to mold the panel and the housing.

Further, the lighting device disclosed by the present specification includes a box-shaped housing having an opening, a translucent panel arranged so as to cover the opening, and the housing and the translucent panel. A rod-shaped light guide body arranged in a space surrounded by the light guide body and a light source arranged on the base end side of the light guide body are provided. Further, the translucent panel has a first rib that is continuously erected toward the housing along the axial direction of the light guide body, and a series of the first ribs that are continuously erected toward the housing along the axial direction. The housing has a third rib that is erected continuously along the axial direction toward the translucent panel, and has a second rib that is erected on the light guide body. Is held by the first rib, the second rib, and the third rib.

With such a configuration, since the light guide body is held only by the three members of the first rib, the second rib, and the third rib, the light guide body is held in a state where the side surface thereof does not contact the inner surface of the housing. Can be retained. In this case, except for each of these ribs, nothing is in contact with the side surface of the light guide body, and light can be emitted in all directions around the axis of the light guide body. As a result, the light emitted by the light guide can be efficiently used for lighting, so that the brightness of the light emitted by the lighting device can be improved.

Further, in the above configuration, the housing has an opening hole through which the light guide body can be inserted, and the light guide body has a tip portion on the opposite side of the base end portion from the opening hole to the inside of the housing. It is inserted into the housing, and each of the ribs serves as a guide to continuously guide the tip portion, so that the tip portion is arranged at a held position in the housing, and the base end portion is provided from the opening hole to the housing. It is exposed to the outside of.

With such a configuration, even after the translucent panel is assembled so as to cover the opening of the housing and the opening is closed, if the tip of the light guide is inserted through the opening, the light guide can be inserted. Each rib erected on the housing and the translucent panel serves as a guide to continuously guide the tip portion, and the light guide can be inserted to an appropriate held position in the housing. Further, even if the light guide body is already arranged at the held position, since the base end portion of the light guide body is exposed to the outside of the housing from the opening hole, the base end portion is grasped to the outside of the housing. The light guide can be pulled out. This makes it possible to attach / detach and replace the light guide body even after the opening is closed by the translucent panel.

According to the lighting device according to the present invention, more uniform and even light emission is possible. Further, even after the opening of the housing is closed, the light guide body can be attached / detached and replaced.

Diagram showing a vehicle equipped with a lighting device from the viewpoint from the passenger compartment Front view of the lighting device from the vehicle interior side AA sectional view of the lighting device BB sectional view of the lighting device Sectional drawing corresponding to AA cross section of the lighting apparatus which concerns on Embodiment 2. Cross-sectional view corresponding to the AA cross section of the lighting device according to the conventional configuration

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 4. In the present embodiment, a vehicle lighting device (lighting device) 30 provided on the door trim 20 constituting the vehicle interior surface of the side door 11 provided in the vehicle will be exemplified. The directions of the arrows FR and RR shown in each figure indicate the front (vehicle traveling direction) and the rear, respectively, and the directions of the arrows L and R indicate the left and right directions with respect to the vehicle traveling direction, respectively, and the arrow UP. And DW directions indicate upward and downward, respectively.

As shown in FIG. 1, the side doors 11 are provided on the driver's seat side and the passenger's seat side of the vehicle, respectively, and have a hinge portion 12 on the front side. The side door 11 has a configuration in which the door opening can be opened by rotating outward in the vehicle width direction around the hinge portion 12. A window 13 is provided above the side door 11. In the following description, the configuration on the right side (driver's seat side) will be described, but it is assumed that the same configuration is provided on the left side (passenger seat side).

The door trim 20 constitutes a portion of the side door 11 on the vehicle interior side, and is attached to the door inner panel from the vehicle interior side. As shown in FIG. 1, the door trim 20 is arranged below the window 13 of the vehicle, and includes a lower board 14A, an upper board 14B, and a vehicle lighting device 30. An armrest 15 is formed at the upper end of the lower board 14A, and the vehicle lighting device 30 is arranged above the armrest 15.

As shown in FIG. 2 and FIG. 3 which is a cross-sectional view taken along the line AA of the vehicle lighting device 30, the vehicle lighting device 30 is arranged so as to cover the box-shaped housing 31 having the opening 33 on the vehicle interior side and the opening 33. It is provided with a translucent panel 50 and a light emitting unit 40 arranged between the housing 31 and the translucent panel 50.

As shown in FIGS. 2 and 3, the housing 31 is a generally box-shaped member having an opening 33 on the left side (vehicle interior side), and is made of a thermoplastic resin such as ABS resin. The housing 31 has a bottom surface portion 34 on the right side (outside the vehicle interior) and a wall portion 35 erected from the peripheral edge of the bottom surface portion 34 toward the left side. Further, from the bottom surface portion 34 of the housing 31, third ribs 32 having a constant height erected toward the translucent panel 50 are continuously formed along the axial direction of the light guide rod 42. ..

Although ABS resin generally does not have translucency, the inner surface of the housing 31 is plated to form a mirror-finished plating layer. As a result, the light of the light emitting unit 40 is prevented from being absorbed by the inner surface of the housing 31, and a large amount of light can be reflected in the direction of the translucent panel 50.

As shown in FIG. 2, the light emitting unit 40 includes a light source 41 and a light guide rod (light guide body) 42. The light emitting unit 40 is capable of controlling the lighting state. Specifically, the light source 41 is mainly composed of an LED whose illuminance, light color, etc. can be changed within a certain range, and it is possible to switch between lighting and extinguishing, and when it is lit, it is relative. It is possible to change the illuminance step by step in the range from bright high illuminance to dark low illuminance. Further, the light source 41 has LED elements whose emission colors are red, green, and blue, respectively, and it is possible to change the light color according to the mixing ratio of each emission color.

The light guide rod 42 is made of a cylindrical light guide material having a diameter of R, and is arranged in the housing 31 so that its axial direction is along the front-rear direction. The light guide material is a synthetic resin material that is almost transparent and can transmit light, and in this embodiment, an acrylic resin is used as an example. The light guide rod 42 is arranged so that the base end portion 43, which is one end in the axial direction of the cylinder, faces the light source 41, and the light of the light source 41 is incident on the base end portion 43. Then, in the light guide rod 42, the light incident on the base end portion 43 is repeatedly reflected internally to be guided to the tip end portion 44, and a part of the light is emitted from the side surface of the light guide rod 42. It is configured.

The light-transmitting panel 50 has a shape in which the peripheral edge thereof overlaps with the opening 33 of the housing 31, and covers the opening 33 without a gap. The translucent panel 50 is made of a synthetic resin such as polycarbonate having high translucency, and the outer surface of the passenger compartment is half-mirrored by a method such as aluminum vapor deposition. Therefore, when the light from the light emitting unit 40 is incident on the translucent panel 50, a part of the incident light is transmitted to the vehicle interior side, and a part of the incident light is reflected toward the inside of the housing 31. Become. Although the translucent panel 50 (made of polycarbonate in this embodiment) and the housing 31 (made of ABS resin in this embodiment) are made of different materials, they are both made of thermoplastic resin, and the peripheral portion of the translucent panel 50 and the housing 31. The peripheral edge of the opening 33 of the above is joined and assembled by ultrasonic welding. Further, the first rib 51 and the second rib 52 are erected along the vehicle front-rear direction on the inner surface of the translucent panel 50, that is, the plate surface facing the housing 31.

Next, the first rib 51 and the second rib 52 erected on the translucent panel 50 and the third rib 32 erected on the housing 31 will be described in detail with reference to FIG.

The first rib 51 and the second rib 52 are erected from the plate surface of the translucent panel 50 toward the housing 31. The first rib 51 and the second rib 52 are formed seamlessly and continuously along the axial direction of the light guide rod 42 while maintaining a constant distance from each other.

The first rib 51 is erected at a position where the distance between the first rib 51 and the upper side wall portion 35A on the upper side of the housing 31 becomes equal to the diameter R of the light guide rod 42 when the translucent panel 50 is assembled to the housing 31. (There is a clearance that allows for design errors. The same applies to the positional relationship below.) Assuming that the distance between the translucent panel 50 and the bottom surface portion 34 of the housing 31 is D, the standing height of the first rib 51 is D / 2.

Further, the second rib 52 is erected so that the distance between the second rib 52 and the upper side wall portion 35A of the housing 31 is equal to the radius (R / 2) of the light guide rod 42. That is, the second rib 52 is arranged between the first rib 51 and the upper side wall portion 35A. Further, the vertical height of the second rib 52 is D / 2-R / 2, which is smaller than that of the first rib 51 by the radius (R / 2) of the light guide rod 42.

Further, a third rib 32 is erected from the bottom surface portion 34 of the housing 31 toward the translucent panel 50. The third rib 32 is also formed seamlessly and continuously along the axial direction of the light guide rod 42, similarly to the first rib 51 and the second rib 52 described above.

The third rib 32 is erected at a position where the distance between the third rib 32 and the upper side wall portion 35A is equal to the radius (R / 2) of the light guide rod 42. The vertical height of the second rib 52 is D / 2-R / 2. That is, the distance between the second rib 52 and the third rib 32 is equal to the upper side wall portion 35A, and the distance between the tips of both ribs is equal to the diameter R of the light guide rod 42.

By forming each rib in this way, a space in which the light guide rod 42 having a diameter R can be exactly accommodated is created in the region surrounded by the tip of each rib and the upper side wall portion 35A. Since the positional relationship between the ribs and the upper side wall portion 35A does not change regardless of the position in the vehicle lighting device 30 in the front-rear direction, the ribs and the upper side wall portion 35A in the internal space of the vehicle lighting device 30. The light guide rod 42 can be held.

Further, as shown in FIG. 4, the housing 31 is provided with an opening hole 36 through which the light guide rod 42 can be inserted. The opening hole 36 is arranged at the rear end of the bottom surface portion 34 and at the same height as the third rib 32, and is a hole through which the light guide rod 42 can be inserted into the housing 31 from diagonally rear right. .. When the tip 44 of the light guide rod 42 is inserted into the opening hole 36 from diagonally rear right and pushed inward, the light guide rod 42 can reach the front end in the housing 31. That is, the first rib 51, the second rib 52, and the third rib 32 function as guide ribs that guide the light guide rod 42 when it is inserted through the opening hole 36.

The above is the configuration of the vehicle lighting device 30 according to the first embodiment, and subsequently, its operation and effect will be described. The vehicle lighting device (lighting device) 30 according to the present embodiment includes a box-shaped housing 31 having an opening 33, a translucent panel 50 arranged so as to cover the opening 33, and a housing. A rod-shaped light guide rod (light guide body) 42 arranged in a space surrounded by the light guide rod 31 and the light transmission panel 50, and a light source 41 arranged on the base end portion 43 side of the light guide rod 42 are provided and transparent. The optical panel 50 has a first rib 51 that is continuously erected toward the housing 31 along the axial direction of the light guide rod 42, and the light guide rod 42 is the tip of the first rib 51 and the housing. It is a vehicle lighting device that is continuously held along the axial direction by the inner surface of 31.

In the vehicle lighting device 30 having the above configuration, the tip of the first rib 51 which is erected from the translucent panel 50 toward the housing 31 and is continuously formed along the axial direction of the light guide rod 42, and the housing 31. The light guide rod 42 can be held between the inner surface of the light guide rod 42. In this way, the light guide rod 42 comes into contact with the inner surface of the first rib 51 and the housing 31 at any position in the axial direction. That is, since the positional relationship between the light guide rod 42 and the light transmitting panel 50 and the housing 31 in contact with the light guide rod 42 does not change regardless of the position in the axial direction, the occurrence of light unevenness in the axial direction is suppressed. Uniform light emission can be achieved.

Further, in the vehicle lighting device 30 having the above configuration, in holding the light guide rod 42, the inner surface of the first rib 51 and the housing 31 is used instead of the locking projection 37 as shown in FIG. Generally, in order to form the locking projection 37 by injection molding, a slide mold capable of undercutting must be used, which complicates the structure of the mold. Therefore, in the above configuration, the locking projection 37 becomes unnecessary, and the structure of the mold can be simplified.

Further, in the vehicle lighting device 30 according to the present embodiment, the translucent panel 50 is erected toward the housing 31 and has a second rib 52 formed continuously along the axial direction of the light guide rod 42. The light guide rod 42 is held by the inner surfaces of the first rib 51, the second rib 52, and the housing 31.

With such a configuration, the light guide rod 42 can be held by the second rib 52 in addition to the inner surface of the housing 31 and the first rib 51. As a result, the light guide rod 42 can be held from more directions, so that it is possible to prevent the light guide rod 42 from being unintentionally displaced due to vibration or the like generated while the vehicle is running.

Further, in the vehicle lighting device 30 according to the present embodiment, the housing 31 has a third rib 32 that is erected toward the translucent panel 50 and is continuously formed along the axial direction, and guides light. The rod 42 is held by each rib and the inner surface of the housing 31.

With such a configuration, since the light guide rod 42 can be held from more directions, it is possible to prevent the light guide rod 42 from being unintentionally displaced due to vibration or the like generated during vehicle travel. Further, since the light guide rod 42 is held not only by the rib erected on the translucent panel 50 but also by the third rib 32 erected on the housing 31, the position where the light guide rod 42 is held is transparent. It can be brought close to the optical panel 50. As a result, the height of each rib can be reduced. Generally, in injection molding, if the height of the ribs erected on a flat surface is large, sink marks and voids are likely to occur, which makes molding difficult. Therefore, by reducing the height of each rib as such a configuration, the panel and the housing 31 can be easily molded.

Further, in the vehicle lighting device 30 according to the present embodiment, the housing 31 has an opening hole 36 through which the light guide rod 42 can be inserted, and the light guide rod 42 has a tip end portion opposite to the base end portion 43. 44 is inserted into the housing 31 through the opening hole 36, and each rib serves as a guide to continuously guide the tip portion 44, whereby the 44 is arranged at the held position in the housing 31 and is held. The light guide rod 42 at the position has a base end portion 43 exposed to the outside of the housing 31 through the opening hole 36.

With such a configuration, even after the translucent panel 50 is assembled so as to cover the opening 33 of the housing 31 in the manufacturing process of the vehicle lighting device 30 and the opening 33 is closed, the light guide guide is provided. When the tip 44 of the rod 42 is inserted through the opening 36 and pushed into the housing 31, the ribs erected on the housing 31 and the translucent panel 50 each serve as a guide to continuously guide the tip 44. , The light guide rod 42 can be inserted to an appropriate held position in the housing 31. In the configuration of the conventional lighting device 230 in which the light guide rod 42 is held by the locking protrusions 37 as shown in FIG. 6, a plurality of locking protrusions 37 are spaced apart along the axial direction of the light guide rod 42. Since the light guide rods 42 cannot be continuously guided, even if the light guide rods 42 are inserted inward through the opening holes 36 provided in the housing 31, all the light guide rods 42 are locked. It is very difficult to sequentially lock the protrusions 37.

Further, with such a configuration, even after the light guide rod 42 is arranged at an appropriate held position, the base end portion 43 of the light guide rod 42 can be moved from the opening hole 36 to the outside of the housing 31. Since it is exposed, the light guide rod 42 can be pulled out from the housing 31 by grasping the base end portion 43 thereof. As a result, the light guide rod 42 can be arranged and replaced even after the light transmitting panel 50 is assembled.

<Embodiment 2>
Next, Embodiment 2 of the present invention will be described with reference to FIG. In the present embodiment, the vehicle lighting device 130 having a different configuration of the housing 131 and the translucent panel 150 from the above-described first embodiment will be illustrated. In the present embodiment, the same reference numerals are used for the parts (members) having the same configuration as that of the first embodiment, and duplicate description of the structure, action and effect will be omitted.

The translucent panel 150 according to the present embodiment has first ribs 151 and second ribs 152 that are erected at the center in the vertical direction at intervals in the vertical direction. The distance between the first rib 151 and the second rib 152 is set to a value smaller than the diameter R of the light guide rod 42 (for example, 3R / 4) because the light guide rod 42 is held so as to be sandwiched between the ribs. .. Further, the standing heights of both ribs are equal, and the value is set between D / 2-R / 2 and D / 2 (for example, D / 2-R / 4).

Further, the housing 131 according to the present embodiment has a third rib 132 that is erected at the center in the vertical direction thereof. The standing height of the third rib 132 is set to be between D / 2-R / 2 and D / 2 (for example, D / 2-R / 2).

All the ribs are continuously formed along the axial direction of the light guide rod 42.

In such a configuration, as shown in FIG. 5, when the light guide rod 42 is arranged so as to be sandwiched between the first rib 151 and the second rib 152 from the left side, the light guide rod 42 is arranged by the third rib 32 from the right side. 42 is supported. That is, the light guide rod 42 can be held by the tips of the first to third ribs at substantially the center of the housing 131 in the vertical direction and the horizontal direction.

In this way, the light guide rod 42 can be held only by the tips of the first to third ribs, and the side surface of the light guide rod 42 and the inner surface of the housing 131 do not come into contact with each other. The light guide rod 42 is arranged substantially in the center of the housing 131. Further, the first rib 151 and the second rib 152 are integrally molded with the translucent panel 150 and have translucency. As a result, the light guide rod 42 is used for lighting purposes without blocking most of the light emitted in all directions around its axis, and the brightness of the vehicle lighting device 30 can be improved.

<Other Embodiments>
The present invention is not limited to the embodiments described by the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not deviating from the gist other than the following. It can be implemented with various changes.

(1) In each of the above-described embodiments, the case where the light guide rod is held by three ribs has been illustrated, but the present invention can be applied even if the number of ribs is four or more.

(2) In each of the above-described embodiments, the light guide rod is cylindrical and its cross section is circular, but the cross-sectional shape of the light guide rod is not limited to a circle, and a polygon such as a triangle or a quadrangle, for example, Kamaboko It may be a shape that combines a curved line and a straight line, such as a mold.

(3) In each of the above-described embodiments, the case where the light guide rod is arranged in the center in the left-right direction in the housing is illustrated, but the position where the light guide rod is arranged is not limited to the center in the left-right direction and is closer to the translucent panel. The present invention can be applied regardless of whether the position is close to the housing or conversely.

(4) In each of the above-described embodiments, the vertical height and position of each rib are illustrated so that the light guide rod can enter the region surrounded by the ribs and the like without a gap. An appropriate clearance may be provided between each rib and the light guide rod in consideration of dimensional tolerances and the like.

(5) In each of the above-described embodiments, the hinged doors on the driver's seat side and the passenger's seat side have been illustrated, but the present invention is not limited to the hinged door, but may be a sliding door, a back door at the rear of the vehicle, or a lighting device arranged on the ceiling of the vehicle interior. The present invention is applicable.

(6) In each of the above-described embodiments, the lighting device used for the interior of the vehicle has been illustrated, but the present invention can be applied to the lighting device used for the exterior of the vehicle. Further, it may be provided not only in a vehicle but also in various vehicles. For example, the above lighting device can be applied to vehicles such as trains and amusement vehicles as ground vehicles, airplanes and helicopters as flight vehicles, and ships and submersibles as marine and underwater vehicles.

(7) The present invention is also applicable to a lighting device fixed indoors or outdoors.

30,130 ... Vehicle lighting device (lighting device), 31,131,231 ... Housing, 32,132 ... Third rib, 33 ... Opening, 40 ... Light emitting part, 41 ... Light source, 42 ... Light guide rod (guide) Optical body), 50, 150, 250 ... Translucent panel, 51, 151 ... 1st rib, 52, 152 ... 2nd rib

Claims (5)

A box-shaped housing with an opening and
A translucent panel arranged so as to cover the opening and having translucency,
A rod-shaped light guide arranged in a space surrounded by the housing and the translucent panel,
A lighting device including a light source arranged on the base end side of the light guide body.
The translucent panel has a first rib that is continuously erected toward the housing along the axial direction of the light guide.
The light guide body is a lighting device that is continuously held along the axial direction by the tip of the first rib and the inner surface of the housing. The translucent panel has a second rib that is continuously erected toward the housing along the axial direction of the light guide.
The lighting device according to claim 1, wherein the light guide body is held by the first rib, the second rib, and the inner surface of the housing. The housing has a third rib that is erected in succession along the axial direction toward the translucent panel.
The lighting device according to claim 1 or 2, wherein the light guide is held by each of the ribs and the inner surface of the housing. A box-shaped housing with an opening and
A translucent panel arranged so as to cover the opening and having translucency,
A rod-shaped light guide arranged in a space surrounded by the housing and the translucent panel,
An illuminating device including a light source arranged on the base end side of the light guide body.
The translucent panel includes a first rib that is continuously erected toward the housing along the axial direction of the light guide body.
It has a second rib that is erected in succession along the axial direction toward the housing.
The housing has a third rib that is erected in succession along the axial direction toward the translucent panel.
The light guide body is a lighting device held by the first rib, the second rib, and the third rib. The housing has an opening through which the light guide can be inserted.
In the light guide body, the tip portion on the side opposite to the base end portion is inserted into the inside of the housing through the opening hole, and each of the ribs serves as a guide to continuously guide the tip portion. It is arranged at the held position in the housing and is
The lighting device according to any one of claims 1 to 4, wherein the base end portion is exposed to the outside of the housing through the opening hole.

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