JP2001148203A - Lighting equipment of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting equipment of vehicle with enough quantity of light during its lighting and a good appearance with a feeling of depth when it is not lighting. SOLUTION: For the lighting equipment of vehicle, inside of a lamp body 10 is partitioned into plurality of lamp rooms S1, S2 by partition walls 20, and reflectors 12a, 12b are formed on the inner surface of lamp body part 10a, 10b monolythically, and a front lens 18, which is a jointed body of plurality of different colored lenses and through which the back side can be seen, is fitted to the frontal opening art of the lamp body 10, and a vent hole 40, passing through the lamp room and outside, is installed at the front end of the partition wall 20 which is located at the back side of lens joining part 19. Thus, a bigger effective reflecting surface is obtained, and an enough quantity of light is retained during its lighting, and inside of the lamp room can be seen through the front lens 18 with a feeling of depth when it is not lighting, while the vent hole 40 installed at the front end of the partition wall 20 is inconspicuous because it is hidden by the lens joining part 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular lamp provided with a front lens in which a plurality of lenses of different colors are joined and integrated with each other, and the back of which can be seen through. The present invention relates to a vehicular lamp in which a ventilation hole is made invisible through a front lens.

[0002]

2. Description of the Related Art As a vehicle lamp of this type, in a combination lamp in which a plurality of lamps having different functions are integrated, a plurality of lamp chambers defined by partition walls are provided in a container-like lamp body. A structure in which a reflector is integrally formed on the inner peripheral surface of a lamp body part forming each lamp chamber, and a front lens in which a plurality of lenses of different colors are joined and integrated is attached to a front opening of the lamp body. In the front lens, the step is not formed, or if formed, formed only in part, or by forming a step with a small curvature, the lamp chamber can be seen through the front lens so that it can be used as a lamp. It gives a sense of depth.

[0003] In general, at a predetermined position of the lamp body, a ventilation hole communicating with the inside and outside of the lamp chamber is provided, so that a structure in which dew condensation does not occur in the lamp chamber is provided.

[0004]

However, in the above-mentioned conventional lamp structure, for example, a ventilation hole is provided in the effective reflection surface of the reflector, and the amount of reflected light obtained by the reflector is accordingly small, and the light amount of the lamp is reduced. There was a problem.

[0005] Also, through the front lens, the reflector looks shiny and has a sense of depth, which is preferable.
You can see the dark vent inside the glittering reflector,
There was also a problem that the appearance was bad.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a vehicular lamp which can provide a sufficient amount of light when lit and has a sense of depth when not lit and has a good appearance. To provide.

[0007]

In order to achieve the above object, in the vehicle lamp according to the first aspect, the interior of the container-like lamp body is defined by partition walls into a plurality of lamp chambers. A reflector is integrally formed on the inner peripheral surface of the lamp body portion forming the lamp chamber, and a front lens that can be seen through the back is formed by integrally joining a plurality of lenses of different colors from each other to the front opening portion of the lamp body. In the vehicle lighting device, the front edge of the partition wall extends along the lens joint, behind the lens joint,
At the position facing the lens joint at the front edge of the partition wall, a ventilation hole communicating between the inside and outside of the lamp room is provided. (Operation) Since the ventilation hole is not provided in the effective reflection surface of the reflector, the effective reflection surface is large, and the amount of light reflected by the reflector increases. When not lit, the reflector in the lamp room looks shining through the front lens,
It has a sense of depth. Also, since the front edge of the partition wall is not as glossy as the reflector, and is located behind the lens junction that forms the boundary between lenses of different colors, the ventilation hole provided at the front edge of the partition wall is Inconspicuous. According to claim 2, in the vehicle lighting device according to claim 1, the partition wall is formed wider than a lens joint portion, and a groove that opens to a lens joint portion side is provided in a front edge of the partition wall. The air hole was provided at the bottom of the groove. (Operation) Since the extraneous light hardly reaches the groove at the front edge of the partition wall at the time of non-lighting, the position of the lens joint portion in the front lens looks darker than the lens design surface area, and the existence of the ventilation hole is hidden. According to a third aspect of the present invention, in the vehicle lighting device according to the second aspect, the vent hole is provided at a groove bottom portion at a front edge of a partition wall extending left and right. (Operation) Since the external light mainly comes from obliquely forward and upward, the upper side wall of the groove extending left and right effectively blocks the external light traveling toward the groove bottom. According to a fourth aspect of the present invention, in the vehicle lamp according to the third aspect, the vent hole is provided near an upper side wall of the groove extending left and right. (Operation) The external light coming obliquely from the upper front is blocked by the upper side wall of the groove extending left and right, and a portion closer to the upper side wall of the groove looks darker. The upper side wall of the groove is located on an obliquely downward line connecting the eyes of the person facing the lamp and the air holes, and conceals the air holes.
According to a fifth aspect, in the vehicle lamp according to any one of the first to fourth aspects, a cylindrical step is formed on a rear side of a lens design surface area of the front lens. (Operation) The lamp room can be seen through the front lens and the cylindrical room formed on the front lens can enlarge the lamp room, so that the sense of depth is further emphasized. Further, no cylindrical step is formed in the lens joining portion, and therefore, the ventilation hole does not appear enlarged.

[0008]

Next, embodiments of the present invention will be described based on examples.

1 and 2 show a first embodiment of the present invention. FIG. 1 is a front view of a combination lamp for an automobile according to the first embodiment, and FIG. 2 is a longitudinal sectional view of the lamp. FIG. 2 is a sectional view taken along line II-II shown in FIG. 1.

In these figures, reference numeral 10 denotes a synthetic resin container-shaped lamp body of a rear combination lamp, in which a partition wall 20 extending in the lateral direction is formed substantially at the center of the lamp body 10 in the vertical direction. Lamp body 1
Lighthouse S1 of tail and stop lamp in the upper part of 0
However, a lamp chamber S2 for a turn signal lamp is provided below the lamp body 10.

Further, the lamp body portions 10a of the tail and stop lamp and the turn signal lamp,
On the inner peripheral surface of 10b, a parabolic reflector 12a,
12b are integrally formed, and each lamp body part 1
0a, 10b, valve insertion holes 14 formed at the rear tops
Bulbs 16a and 16b, which are light sources, are inserted into a and 14b. Note that the bulb 16a is a clear valve that emits a clear color, whereas the bulb 16b is an amber valve that emits an amber color by applying an amber color to the light emitting unit. One front lens 18 is attached to the front opening of the lamp body 10 to form a rear combination lamp in which a tail-and-stop lamp and a turn signal lamp are integrated.

At the upper end of the rear wall of the lamp body 10a of the tail-and-stop lamp, there is provided a vent hole 30 extending in the front and rear direction communicating with the inside and outside of the lamp chamber S1. The peripheral edge of the rear opening of the ventilation hole 30 is formed in a cylindrical shape, and an L-shaped air tube 34 is attached to the cylindrical portion 32. The open end 34a on the atmosphere side of the air tube 34 is
The structure is directed toward the lamp body portion 10a, and has a structure in which water hardly enters the air tube 34.

The front lens 18 is formed by integrally forming a front lens 18a for a clear translucent tail signal and a front lens 18b for a clear turn signal lamp on a translucent front lens 18a for a tail-and-stop lamp. Has a ridge 1 on the turn signal lamp lens 18b side.
A concave / convex engaging portion 19c composed of a concave and convex portion 9b on the side of the tail and stop lamp lens 18a is provided along the joining surface extending direction (the direction perpendicular to the paper surface of FIG. 2), and is provided between the two lenses 18a and 18b. Is secured.

Below the partition wall 20, there is provided a second partition wall 28 extending in the left-right direction in parallel with the partition wall 20, and an area S3 sandwiched between the upper and lower partition walls 20, 28 is turned on when the bulb 16a, In the area where the light of 16b does not reach, the front lens 18
The region 18b1 corresponding to the region S3 in the above is a non-light emitting portion.

Behind the design surface area of the front lenses 18a, 18b, a horizontally long cylindrical step element 52a,
The front lens 1 is provided with cylindrical steps 50a and 50b 52b continuous at equal intervals in the vertical direction.
8, a horizontal stripe pattern appears on the whole, and there is a sense of unity in design as a combination lamp. In addition, each step element 5
Since the curvatures of the elements 2a and 52b are small and the widths of the elements 52a and 52b are large, the reflectors 12a and 12b in the lamp chambers S1 and S2 can be seen through the front lens 18 and shine shiningly when not lit. It feels like the lamp has depth.

In particular, the front lens 18 (18a, 18b)
Cylindrical steps 50a, 50 formed in
b, the interiors of the lamp rooms S1 and S2 appear to be enlarged, so that the depth is felt large.

The lens joint 19 and the partition wall 20 are provided in correspondence with each other. Behind the lens joint 19, the front edge of the partition wall 20 extends along the lens joint 19. I have. The width of the partition wall 20 is formed to be larger than the width of the lens joint portion 19, so that light on the tail and stop lamp side is not guided to the lens 18b on the turn signal lamp side. A U-shaped groove 22 is provided at the front edge of the partition wall 20 and opens toward the lens joint 19 side. A pore 40 is provided.

The peripheral edge of the rear opening of the ventilation hole 40 is formed in a cylindrical shape, and a U-shaped air tube 44 is attached to the cylindrical portion 42. The open end 44a on the atmosphere side of the air tube 44 faces forward (toward the lamp body) above the lamp body 10a of the turn signal lamp, and has a structure in which water hardly enters the air tube 44. .

The front edge of the partition wall 20 (upper and lower side walls 23, 24 of the groove 22) extends to a position close to the lens joint 19, but the lens joint 19 and the partition wall 20 (side wall of the groove) extend. 23, 24) A predetermined gap is formed between the front lens 18 and the front end of the second partition wall 28.
A slight gap is also formed between (18b), whereby the lamp room S that communicates with the outside air through the ventilation holes 30, 40 is formed.
The flow of air is generated in the light chambers S1 and S2, and the occurrence of dew condensation in the lamp chambers S1 and S2 is suppressed.

The vent hole 40 is formed in the upper side wall 23 of the groove 22.
Since it is provided close to the lamp, the upper wall 23 extends on an obliquely downward line of sight L1 at which the person facing the lamp looks at the ventilation hole 40, and the ventilation hole 40 is not directly visible.

Further, as shown by an arrow L2 in FIG. 2, the extraneous light mainly comes from obliquely forward and upward. However, since the upper side wall 23 of the groove 22 effectively blocks the extraneous light L2 traveling toward the groove bottom,
The bottom of the groove 22 looks dark, and the ventilation hole 40 is inconspicuous.

Further, the extraneous light L2 arriving obliquely from the upper front is blocked by the upper side wall 23 of the groove 22 and looks darker and darker toward the upper side wall 23 of the groove 22.
Is provided near the groove upper side wall 23 side, which is the darkest in the groove 22, so that the existence of the ventilation hole 40 is hardly recognized from the outside.

The lens joint 19 located in front of the ventilation hole 40 is formed thicker than the lens design surface area.
Has a structure in which a plurality of colors are stacked, so that the ventilation holes 40 are difficult to see through the lens bonding portion 19.

Also, the lens joint 19 of the front lens 18
Since the light from the bulb is difficult to reach and the temperature is the lowest in the lamp, dew condensation is likely to occur near the lens junction 19, but in this embodiment, the lens junction where dew condensation is likely to occur Since the ventilation hole 40 is provided in the vicinity of the portion 19, the flow of air is reliably formed around the lens joint portion 19, and the occurrence of dew is effectively suppressed.

In the above embodiment, a combination lamp in which a tail-and-stop lamp and a turn signal lamp are integrated has been described. However, a lamp in which a plurality of lamps having different functions are integrated, and lenses having different colors are used. The present invention can be widely applied to other lamps provided with an integrated front lens whose rear side can be seen through.

[0026]

As is apparent from the above description, according to the vehicular lamp of the first aspect, the amount of light reflected by the reflector (the amount of light of the lamp) is reduced by the absence of the ventilation hole in the effective reflection surface of the reflector. The visibility of the lamp at the time of lighting is improved.
At the time of non-lighting, the interior of the lamp chamber is transparent, giving a sense of depth. However, since the ventilation holes are hidden by the lens joints and are not conspicuous, the appearance of the lamp is improved accordingly. According to the second aspect, at the time of non-lighting, the position of the lens joint portion of the front lens looks darker than the design surface area, so that the ventilation holes are not conspicuous and the appearance of the lamp is further improved. According to the third aspect, since the upper side wall of the groove effectively blocks external light traveling toward the groove bottom, the groove bottom provided with the ventilation hole looks dark, the ventilation hole is not conspicuous, and the appearance of the lamp is further improved. According to the fourth aspect, the ventilation hole is provided at a position where the groove looks darkest, and further, the upper wall of the groove comes on an obliquely downward line of sight of the person who views the ventilation hole facing the lamp. Therefore, the existence of the ventilation hole is hardly known. According to the fifth aspect, the lamp room is enlarged and the depth feeling is emphasized, but the appearance of the lamp is further improved because the ventilation holes are not conspicuous.

[Brief description of the drawings]

FIG. 1 is a front view of a rear combination lamp for an automobile according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the lamp (a sectional view taken along line II-II shown in FIG. 1).

[Explanation of symbols]

Reference Signs List 10 Lamp body of rear combination lamp 10a Lamp body of tail and stop lamp 10b Lamp body of turn signal lamp 12a Reflector of tail and stop lamp 12b Reflector of turn signal lamp 16a Bulb as light source of tail and stop lamp 16b Turn signal Bulb which is the light source of the lamp 18 Front lens of the rear combination lamp 18a Front lens of the tail and stop lamp 18b Front lens of the turn signal lamp 19 Lens junction 19a Recessed strip on the front lens side of the tail and stop lamp 19b Turn signal lamp Protrusions on the front lens side 19c Concavo-convex engagement portions on the lens joining surface 20 Partition wall 22 Groove formed on front edge of partition wall 23 Upper wall of groove 40 Through Hole 50a tail and stop lamp cylindrical steps L1 people Looking L2 external light formed on the front lens of the cylindrical steps 50b turn signal lamp which is formed on the front lens

Claims (5)

[Claims] 1. A lamp body having a container-like shape is defined by a partition wall into a plurality of lamp chambers, and a reflector is integrally formed on an inner peripheral surface of a lamp body part forming the lamp chamber. In a vehicular lamp in which an opening is provided with a front lens that can be seen through the back in which a plurality of lenses having different colors are joined and integrated, the front edge of the partition wall is behind the lens joining portion. A ventilation hole extending along the portion and facing the lens joining portion at the front edge of the partition wall, the ventilation hole communicating the outside and inside of the lamp room is provided. 2. The partition wall is formed wider than the lens joint, a groove is formed at the front edge of the partition wall, and the groove is opened toward the lens joint, and the air hole is formed at the bottom of the groove. The vehicular lamp according to claim 1, wherein: 3. The vehicular lamp according to claim 2, wherein the ventilation hole is provided at a groove bottom portion at a front edge of a partition wall extending left and right. 4. The vehicular lamp according to claim 3, wherein the ventilation hole is provided near an upper side wall of the groove extending left and right. 5. The vehicular lamp according to claim 1, wherein a cylindrical step is formed on a rear side of the lens design surface area of the front lens.