JP2981710B2 - Vehicle lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel vehicular lamp. Specifically, in a vehicle lamp having a communication hole for communicating the lamp room with the outside in order to prevent clouding of the lens and the reflecting surface, a new vehicle lamp in which air easily flows and water does not easily enter the lamp room. It is something to offer.

[0002]

2. Description of the Related Art There is a vehicular lamp having a communication hole for communicating a lamp room with the outside in order to prevent clouding of a lens or a reflection surface.

FIG. 15 shows an example a of such a conventional vehicular lamp.

[0004] Reference numeral b denotes a lamp body whose front opening is covered with a lens c to form a substantially sealed lamp room d. "e" is a light bulb arranged in the lamp room "d", and is attached to the lamp body "b".

F denotes a communication hole formed in the rear wall of the lamp body b, and a cylindrical communication pipe g extends from a peripheral edge of the communication hole f.
Is projected rearward. h is a substantially L-shaped waterproof pipe having a side surface, and one end of the waterproof pipe h is externally connected to the communication pipe g.

Thus, in the vehicle lamp a described above, air flows in the lamp chamber d through the communication hole f, thereby preventing clouding of the lens c and the like. Further, since a waterproof pipe h having a substantially L-shaped side surface is attached to the communication pipe g, water from the outside hardly enters the lamp chamber d.

However, such a vehicular lamp a has a problem that the cost increases because a separate waterproof pipe h is used.

Therefore, vehicle lamps a 'and a "as shown in FIG. 16 or FIG. 17 have been proposed.

In the vehicle lamp a 'shown in FIG.
A communication hole f 'is formed in the rear wall of the lamp body b',
An upper surface wall i extending rearward from an upper edge of the communication hole f ', and side walls j, j extending downward from right and left side edges of the upper surface wall i and continuing to a rear surface of the lamp body b' (in the figure, one side wall j, j). And the upper edge is continuous with the rear edge of the upper surface wall i and the left and right side edges are communicated with the communication hole f 'by the rear wall k which is continuous with the rear edge of the side wall j. An air passage m extending vertically and having an open lower end l is formed.

Thus, the lamp room d 'defined by the lamp body b' and the lens c 'is communicated with the outside through the communication hole f' and the ventilation path m.

In the vehicle lamp a ″ shown in FIG.
A cylindrical portion n having a cylindrical shape protrudes rearward from a rear wall of the lamp body b ″, and the inside of the cylindrical portion n is partitioned into upper and lower portions p and q by a partition wall o. An orifice-shaped communication hole f "is formed in a portion of the rear wall of the body b" located at the front end of the upper portion p of the cylindrical portion n.

Reference numeral r denotes a rearwardly-facing step formed near the rear end of the outer peripheral surface of the cylindrical portion n.

An opening s is formed at a position near the front end of the wall defining the lower part of the lower part q of the cylindrical part n. Further, an enclosing wall t is provided so as to protrude downward from the lower surface of the cylindrical portion n so as to surround the periphery of the opening s.

Reference numeral u denotes a cylindrical cap having a closed rear end, which is externally fitted to the rear end of the cylindrical portion n.
At this time, the front end of the cap u comes into contact with the step r of the cylindrical portion n to define its position, and in this state, the closing wall v at the rear end is separated from the rear end of the cylindrical portion n rearward. ing.

Thus, the communication hole f ″ → the upper part p of the cylindrical part n → the space between the rear end of the cylindrical part n and the closing wall v of the cap u → the lower part q of the cylindrical part n → the cylindrical part n Is formed, and the lamp room d ″ is communicated with the outside through the ventilation path.

[0016]

The vehicle lamp a 'shown in FIG. 16 does not use a waterproof pipe as a separate member unlike the vehicle lamp a shown in FIG. For example, when the splashed water enters through the opening at the lower end of the ventilation path m, the intruded water reaches the communication hole f 'and the lamp room d'
There is a problem of getting inside.

Further, the vehicular lamp a 'has another problem that a slide core is essential for molding.

Further, in the vehicular lamp a ″ shown in FIG. 17, since the ventilation path is maze-shaped, it is prevented that the splashed water enters the lamp room d ″. In the ventilation path, a portion that obstructs a smooth flow of air such as a U-turn with a large curvature (from the upper portion p of the cylindrical portion n to the rear end of the cylindrical portion n and the space between the closing wall v of the cap u) There is a problem that the air is difficult to flow. Further, in the vehicle lamp a ″, there is a problem that the cost reduction is not effective because the cap u which is a separate member is required.

[0019]

According to the present invention, there is provided a vehicular lamp having a closed light chamber for solving the above-mentioned problems.
In vehicle lighting, communication between the light room and the outside
Holes so as to be located above, and to the left and right of, the communication hole.
Eaves wall provided and impermeable wall protruding below the communication hole
And at least above and to the left and right of the eaves wall
Outer wall protruding from the eaves wall, impermeable wall and outer periphery
The lower end by the lid which is positioned against the projecting end side of the wall
A maze-like flow path that opens to the outside is formed by the
And another flow path formed by the outer peripheral wall and the lid
It is the one that was opened .

[0020]

Accordingly, in the vehicle lighting device of the present invention, the eaves wall and
There is another flow path formed by the outer peripheral wall and the lid
Since it is open at the end, if water enters from here,
Even if there is, it is quickly discharged. Also, waterproof pipe
Costs can be reduced because such separate members are unnecessary.
As well as extreme curves in the flow path connecting the inside and outside of the light room.
There is no part, and a smooth air flow is guaranteed. Ma
Of the channel, formed by the leading edge of the impermeable wall and the side of the eaves wall.
The cross-sectional area of the part to be
It is formed so that it matches the size of the communication hole
Air circulation is ensured.

[0021]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicular lamp according to the present invention.

FIGS. 1 to 6 show a first embodiment 1 of a vehicular lamp according to the present invention. In the first embodiment, the present invention is applied to an automotive headlamp.

Reference numeral 2 denotes a synthetic resin lamp body having a concave portion 3 opened forward. 4 is a lamp body 2
A lamp chamber 5 is formed so as to cover the opening. The lens chamber 4 is substantially sealed by the lens 4 and the lamp body 2.

Reference numeral 6 denotes a reflector disposed in the lamp room 5, and is supported by the lamp body 2 so as to be tiltable by a support mechanism (not shown). Reference numeral 7 denotes a light bulb that is exchangeably supported by the reflector 6. Reference numeral 8 denotes an opening formed in the rear wall 9 of the lamp body 2 at a position corresponding to the light bulb 7. The opening 8 is used for replacing the light bulb 7, and is normally closed by a detachable cover member 10.

Reference numerals 11 and 11 'denote ventilation portions, which are formed at the upper right and lower left portions when viewed from the rear of the rear wall 9 of the lamp body 2. Since the ventilation parts 11 and 11 'are the same except that the arrangement of each part is symmetrical, the description will be made mainly for the one 11 located at the upper right and the one 11' located at the lower left. Omits most of the description.

Reference numeral 12 denotes a communication hole formed in the rear wall 9 and has a circular shape. A cylindrical tubular portion 13 is integrally provided to project rearward from the opening edge of the communication hole 12.

Reference numeral 14 denotes an eaves wall integrally projecting rearward from the rear surface of the rear wall 9, and an upper eaves wall 14u located above the cylindrical portion 13 and a downward from the right end of the upper eaves wall 14u. The extending right eave wall 14r and the left eave wall 141 extending downward from the left end of the upper eave wall 14u are integrally formed.

The right eaves wall 14r is inclined so as to be displaced slightly rightward as it goes downward, and the left eaves wall 14l is inclined so as to be displaced slightly leftward as it goes downward. ing.

Numerals 15u and 15d are impermeable walls integrally protruding rearward from the rear surface of the rear wall 9. Impermeable wall 15u
Extends rightward from a position slightly above the lower end of the left eave wall 14l and ends short of the right eave wall 14r. The impermeable wall 15d extends leftward from the lower end of the right eaves wall 14r and ends short of the lower end of the left eaves wall 14l.

The eaves wall 14 and the impermeable walls 15u, 15
The protrusion amount from the rear surface of the rear wall 9 is substantially the same, and the protrusion amount from the rear surface of the rear wall 9 of the cylindrical portion 13 is smaller than the protrusion amounts of the eaves wall 14 and the impermeable walls 15u and 15d. I have.

Reference numerals 16u, 16r, 16l, and 16d denote outer peripheral walls projecting rearward from the rear surface of the rear wall 9,
The upper outer wall 16u is located above the upper eave wall 14u, the right outer wall 16r is located to the right of the right eave wall 14r, the left outer wall 16l is located to the left of the left eave wall 14l, and the lower outer wall is located. The wall 16d is located below the lower impermeable wall 15d.

Then, of these outer peripheral walls, the upper outer peripheral wall 1
Excluding 6u, the protruding amounts of the rear walls 9r, 16l, 16d from the rear wall 9 are the above-mentioned eaves walls 14 and impermeable walls 15u, 15d.
d is larger than that of d.

The right outer peripheral wall 16r is inclined so as to be slightly displaced rightward as going upward, and the left outer peripheral wall 161 is inclined so as to be displaced slightly left as it goes upward. In addition, these outer peripheral walls 16r, 16l
Are formed on the surfaces facing each other. The steps 17, 17 are located slightly forward of the rear ends of the eaves wall 14 and the impermeable walls 15u, 15d.

Reference numeral 18 denotes a lid, which is the upper outer peripheral wall 16u.
Are integrally connected to each other through an integrated hinge 19 formed in a thin shape at the rear end edge. The lid 18 has a plate shape slightly larger than the area surrounded by the eaves wall 14,
A large shallow recess 20 is formed on the surface facing the rear wall 9. The recess 20 is sized to allow the rear end of the eave wall 14 to completely enter.

The tip of the lid 18, ie, the hinge 1
An engagement piece 21 protrudes from a center in the left-right direction of an end opposite to the end connected to the upper outer peripheral wall 16u at 9.

An elongated engaging hole 22 extending in the left-right direction is formed at a position near the rear end of the lower outer peripheral wall 16d.

Thus, the lid 18 is bent by the hinge 19 and is positioned so as to cover the eaves wall 14 and the water blocking walls 15u and 15d, and the engagement piece 21 is provided on the lower outer peripheral wall 16d.
Of the eaves wall 14 and the impermeable walls 15u and 15d, thereby being maintained in a state of covering them.
In this state, the rear ends of the eaves wall 14 and the impermeable walls 15u and 15d are located in the concave portions 20 of the lid 18 and the lid 1
8 are the left and right outer peripheral walls 16r, 16l, the stepped portion 1
7 and 17 are in contact with each other.

Thus, between the lamp room 5 and the outside of the lamp body 2, the communication hole 12, the cylindrical portion 13, the rear surface of the rear wall 9,
Eaves wall 14, impermeable walls 15u and 15d, lower outer peripheral wall 16
A maze-shaped ventilation path 23 is formed in a portion surrounded by d and the lid 18.

That is, a portion 23a surrounded by the communication hole 12 → the cylindrical portion 13 → the rear wall 9, the eaves wall 14, the outer peripheral surface of the cylindrical portion 13, the impermeable wall 15u, and the lid 18 → the rear wall 9 and the impermeable wall. 15u
Top edge, right eaves wall 14r facing this edge, and lid 1
23 → the rear wall 9 and the impermeable wall 1
The portion 23c surrounded by the lower end of the 5u, the impermeable wall 15d, the lower ends of the left and right eaves walls 14r, 14l and the lid 19 → the rear wall 9
And the leading edge of the impermeable wall 15d and the left eaves wall 14 opposed thereto
1d and the portion 23d surrounded by the lid 19 → the rear wall 9, the impermeable wall 15d, the lower peripheral wall 16d and the portion 23e surrounded by the lid 19 → the rear wall 9 and the right eaves wall 14.
r, the lower edge of the left eave wall 141, and the lower peripheral wall 1
Part 2 surrounded by left and right edges of 6d and lid 18
An air passage 23 called 3f, 23f 'is formed.

The cross-sectional areas of the portions 23b and 23d are substantially the same as the cross-sectional area of the communication hole 12.

In the headlight 1 for an automobile, since the lamp room 5 and the outside are communicated with each other through the maze-shaped ventilation path 23, air flows into the lamp room 5 from outside. Since this is discharged to the outside through the interior of the lamp chamber 5, even if clouding occurs in the lens 4, the reflector 6, or the like, the clouding is quickly eliminated. In particular, in the above-mentioned automotive headlamp 1, since one ventilation part 11 is located at the upper right and the other ventilation part 11 'is located at the lower left, the ventilation part 11' → light room 5 → ventilation. The air flow spreads evenly in the lamp room 5 along the route of the part 11.

Further, a portion 2 which is a bottleneck in the ventilation passage 23
Since the cross-sectional areas of 3b and 23d are formed to be substantially the same as the cross-sectional area of the communication hole 12, it is possible to secure a flow rate commensurate with the flow rate in the communication hole 12, so that the light Sufficient air can flow.

In addition, since all the members constituting the ventilation portions 11 and 11 'are formed integrally with the lamp body 2,
Costs can be reduced. The left and right eaves walls 1
The reason why the 4r, 14l and the left and right outer peripheral walls 16r, 16l are inclined in reverse is to enable removal of a mold for forming the concave portion 20 of the lid portion 18.

Even if water splashes on the vents 11 and 11 'due to jumping up during running, such water is blocked by the outer peripheral wall, especially the lower outer peripheral wall 16d. Even if there is water that enters the ventilation path 23, nothing enters the lamp room 5 because it is blocked by the impermeable wall 15 u and the cylindrical portion 13.

Although the water generated by splashing or the like often comes from the side of the lamp, the water vents 11 and 11 'include the eaves wall 14 of the air passage 23 and the water shielding walls 15u and 15d. Since the opening 23d of the portion faces the center side of the lamp, there is an effect that water does not easily enter from this point as well.

FIGS. 7 and 8 show a second embodiment of the vehicular lamp according to the present invention. Only the ventilation portion is different from that of the first embodiment, and only the ventilation portion 11A is shown. .

Since the ventilation portion 11A is almost the same as the ventilation portion 11, the same portion is used for the ventilation portion 1A.
The same reference numerals as in FIG. 1 denote the same parts, and a description thereof will be omitted.

Reference numeral 24 denotes a stopper formed so as to cross the center of the communication hole 12 vertically.

Reference numeral 25 denotes a filter, which is positioned inside the cylindrical portion 13 so as to be fitted therein. Then, the front end of the filter 25 abuts on the stopper 24, thereby defining its position.

The impermeable walls 15u and 15d are respectively inclined. That is, the upper impermeable wall 15u is inclined downward to the right, and the lower impermeable wall 15d is inclined downward to the left.
Each inclination angle is about 5 ° with respect to the horizontal plane.

Further, downward extending portions 26r, 26l are formed on the left and right outer peripheral walls 16r, 16l, respectively. The extension portions 26r and 26l are shaped like a letter when viewed from the rear, and the extension portion 26r of the right outer peripheral wall 16r is bent so that the lower half thereof is displaced leftward as it goes downward, and the left outer peripheral wall 16r. The extension 26l of the 16l is bent so that the lower half thereof is displaced rightward as it goes down.

Thus, in this embodiment, the cylindrical portion 1
Since the filter 25 is packed in the inside 3, it is possible to prevent dust and dirt from entering the lamp room 5 with the flow of air.

The left and right outer peripheral walls 16r and 16l are provided with extensions 26r and 26l, respectively.
Since the lower halves of r and 26l are positioned so as to hold the left and right sides below the lower outer peripheral wall 16d, intrusion of water is more effectively prevented.

Furthermore, even if water may enter the ventilation path 23, the water that has entered the ventilation path 23 is quickly discharged because the water blocking walls 15u and 15d are inclined.

FIGS. 9 to 12 show a third embodiment of the vehicle lamp according to the present invention.
Since only the ventilation part is different from the second embodiment, only the ventilation part 11B is shown.

Note that the ventilation portion 11B is connected to the ventilation portion 11A.
Therefore, the same portions are denoted by the same reference numerals as those of the similar portions in the ventilation section 11A, and description thereof is omitted.

In this ventilating portion 11B, the connecting portion 27 of the lower impermeable wall 15d to the right eaves wall 14r is almost one-fourth.
It is formed in an arc shape, and therefore, its inner surface 27a is formed in a concave curved surface. Further, a portion 28 of the distal end surface of the upper impermeable wall 15u facing the concave curved surface 27a is also formed as a convex curved surface.

The lower outer peripheral wall 29 is formed in a V-shape having a gentle bending angle.

Further, on the inner surfaces of the lower end portions of the left and right outer peripheral walls 16r, 16l, that is, the surfaces facing each other, hook-shaped locking protrusions 30, 30 extending in the vertical direction are provided at positions near the rear ends thereof. ing.

The engaging piece 21 is not formed on the lid 18 '.

Thus, the lid 18 'is bent by the hinge 19 so as to cover the eaves wall 14 and the impermeable walls 15u and 15d. At this time, both side edges of the front end portions pass through the front sides of the locking ridges 30, 30 while bending the rear portions of the lower ends of the left and right outer peripheral walls 16r, 16l outward, and When the distal end abuts against the steps 17, 17 of the outer walls 16r, 16l, the lower ends of the outer walls 16r, 16l that have been bent outward return to the original state, and the locking ridges 30, 30 are closed. Located behind the tip of the portion 18 ',
As a result, the lid portion 18 ′ is connected to the eaves wall 14 and the impermeable wall 15.
u, 15d are kept covered.

In the ventilation passage 23, if the inside of the connecting portion between the lower impermeable wall 15d and the right eaves wall 14r is square, a vortex is generated in the air flow at this portion, and the air flow is obstructed. And
In addition, there is a problem that water is likely to remain due to surface tension in the angular portion. However, in the ventilation portion 11B, the connection portion 27 of the lower impermeable wall 15d with the right eaves wall 14r is formed. Inner surface 2
7a is formed in a concave curved surface, and a portion 28 of the distal end surface of the upper impermeable wall 15u opposed to the concave curved surface 27a is also formed in a convex curved surface. Therefore, the air flows smoothly through the ventilation path 23. Further, water does not remain on the inner surface 27a of the connecting portion 27.

Further, since the lower outer peripheral wall 29 is also in the shape of a letter, water reaching the upper surface of the lower outer peripheral wall 29 is quickly discharged.

FIGS. 13 and 14 show a fourth embodiment of the vehicular lamp according to the present invention. Only the ventilation portion is different from the above embodiments, so that only the ventilation portion 11C is shown.

The lid 18 "has an engaging piece 21 at its tip.
Is not formed.

Reference numeral 31 denotes a lower outer peripheral wall.
An engagement ridge 32 is formed on the top edge of the upper surface of the first member 1.

Reference numeral 33 denotes a filter, which is disposed in a portion between the water blocking walls 15u and 15d, that is, in a portion 23c of the ventilation path 23 in a filled state.

The lid 18 ″ is attached to each of the walls 14, 15, 16, 31
And the side edges thereof are positioned on the left and right outer peripheral walls 16.
1 and 16r are placed on the steps 17 and 17, and the front end moves to the front side of the engaging ridge 32 while bending the lower outer peripheral wall 31 downward. The rear end of the lid 18 "is engaged with the rear side, thereby keeping the lid 18" closed.

In the ventilation part 11C of this embodiment, the filter 33 is located in a part of the ventilation path 23, so that dust is prevented from entering the lamp room.

In each of the above embodiments, the left and right eaves walls 1 are used.
4l, 14r, left and right outer peripheral walls 16l, 16r, and lid 1
8, 18 ', 18 "
4 is open at the lower end. This is the lid 18, 18 ',
Since the side edge portion of the 18 ″ is only in contact with the outer peripheral walls 16l and 16r, there is a possibility that water may enter there. , 34 are open at the lower end, so that the water is quickly drained.

[0071]

As is apparent from the above description, the vehicle lighting device of the present invention is a vehicle having a closed light room.
Communication hole for communication between the lamp room and the outside
And projecting so as to be located above the communication hole and on the left and right sides.
Eaves wall and impermeable wall protruding below the communication hole
And at least above and to the left and right of the eaves wall
Outer wall protruding from the eaves wall, impermeable wall and outer periphery
The lower end by the lid which is positioned against the projecting end side of the wall
A maze-like flow path that opens to the outside is formed by the
And another flow path formed by the outer peripheral wall and the lid
It is characterized in that it is opened by .

Therefore, in the vehicular lamp of the present invention, the eaves
There is another channel formed by the wall, the outer peripheral wall, and the lid.
Is open at the lower end, so if water enters
Even if there is, it is discharged immediately. Also waterproof pie
Cost is reduced because separate members such as
And the flow path connecting the inside and outside of the light room with extreme
No bends ensure smooth air flow
You. In the flow path, the front edge of the impermeable wall and the side of the eaves wall
The cross-sectional area of the formed part is almost the same as the cross-sectional area of the communication hole.
The size of the communication hole is
A suitable air flow is ensured.

The shape and structure of each part shown in each of the above-described embodiments are merely examples of the embodiment of the present invention, and the technical scope of the present invention is not limited thereto. Is not to be construed as limiting.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of a vehicular lamp according to the present invention together with FIGS. 2 to 6, and is a rear view of the entirety with a lid portion opened.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is an enlarged rear view of a main part in a state where a lid is opened.

FIG. 4 is an enlarged rear view of a main part in a state where a lid is closed.

FIG. 5 is a sectional view taken along the line VV of FIG. 3;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 4;

FIG. 7 shows a second embodiment of the vehicular lamp according to the present invention together with FIG. 8, and this figure is an enlarged rear view of the main part with the lid part opened.

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7;

FIG. 9 shows a third embodiment of the vehicular lamp according to the present invention, together with FIGS. 10 to 12, and is an enlarged rear view of a main part showing a state where a lid is opened.

FIG. 10 is an enlarged rear view of the main part shown with the lid closed.

FIG. 11 is a sectional view taken along the line XI-XI in FIG. 9;

FIG. 12 is a sectional view taken along the line XII-XII in FIG. 10;

13 shows a fourth embodiment of the vehicular lamp of the present invention together with FIG. 14, and is an enlarged rear view of the main part with the lid part opened.

FIG. 14 is a sectional view taken along the line XIV-XIV of FIG. 13 with the lid closed.
It is sectional drawing which follows a line.

FIG. 15 is a sectional view of a main part showing an example of a conventional vehicle lamp.

FIG. 16 is a cross-sectional view of a main part showing another example of a conventional vehicular lamp.

FIG. 17 is a sectional view of a main part showing still another example of a conventional vehicle lamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automotive headlamp (vehicle lamp) 5 Light room 12 Communication hole 14 Eave wall 15u, 15d Water barrier 16l, 16r Outer peripheral wall 18 Lid 18 'Lid 18 "Lid 23 Air passage (flow path) 27a Inner surface (curved surface) 34 Channel

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-161207 (JP, A) JP-A-7-230708 (JP, A) JP-A 1-80704 (JP, U) JP-A 6-161207 23105 (JP, U) Japanese Utility Model Application Hei 2-20204 (JP, U) Japanese Utility Model Application Hei 4-94202 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F21Q 1/00-5 / 00 F21M 1/00-7/00

Claims (4)

(57) [Claims] 1. A vehicular lamp having a closed lamp room.
And a communication hole communicating between the lamp room and the outside, and the communication hole
Eaves wall protruding so as to be located above and on the left and right sides
An impermeable wall protruding below the communication hole, and the eaves wall
At least above and to the left and right of
Outer wall and the protruding ends of the eaves wall, impermeable wall and outer wall
To the outside at the lower end by the lid which is positioned in contact with
A maze-shaped flow path is formed, and the eaves wall, the outer peripheral wall, and the lid
Another channel formed by the part was opened at its lower end
A vehicular lamp characterized by the following. 2. The end edge of a water impervious wall and an eave in a labyrinthine flow path.
The cross-sectional area of the part formed by the side of the wall is
Formed to have the same cross-sectional area as the communication hole
The vehicular lamp according to claim 1, wherein: 3. The lower end opening of the maze-shaped flow path is located at the center of the lamp.
3. The method according to claim 1, wherein the first side is formed on the side.
A vehicle lighting device according to claim 1. 4. The surface of the connecting portion between the impermeable wall and the eaves wall on the flow path side
3. A curved surface as claimed in claim 1, wherein:
Or the vehicle lighting device according to claim 3.