JPS62160601A - Breathing hole structure of lamp apparatus for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a breathing hole structure for an automobile lamp having a bulb, a lens, and a housing. This is to protect the function of the lamp from turning on and off and changes in outside temperature.

r Conventional Branch IFi1 Conventionally, as shown in FIG.
In 06, there was a separate pipe 108 formed of rubber or the like in an L-shape or U-shape that was attached to the outside of the housing 103 (see Utility Model Application Publication No. 142807/1983). is a car light fixture 10 from the outside.
This is to prevent splashes, water from washing a car, etc. from entering the lamp 101 through the breathing hole 106, thereby allowing the lamp 101 to function effectively. Therefore, it is advantageous to make the pipe 108 as long as the space in the vehicle body allows.

[Problem that the invention seeks to solve]

By the way, in the breathing hole structure of the conventional automobile lamp 101, the pipe 1( ) 8 projects outward from the breathing hole 108 formed in the housing 103. Therefore, there was a problem in that it was difficult to install a pipe 108 with a sufficient length to prevent splashes and the like from entering due to the space in the vehicle body.

Therefore, the present invention has been made to solve this problem, and aims to provide an inexpensive breathing hole structure for an automobile lamp that can sufficiently prevent water from entering without taking up space in the vehicle body. It was done for a purpose.

[Technical means for solving the problem] The present invention provides a breathing hole structure in which an air passage is provided in a breathing hole bored in the housing of an automobile lamp, in which one opening of the air passage is located inside the lamp. and (9) a breathing hole structure for an automobile lamp, characterized in that the opening is located above the breathing hole.

[Effect]

The air inside the automobile lamp expands or contracts when the bulb of the automobile lamp is turned on or off, or when the outside temperature changes. When the air inside the lamp expands, the air inside the lamp is discharged outside the lamp through the air passage, and when the air contracts, air flows in from outside the lamp through the air passage, causing the air to flow inside the lamp. The atmospheric pressure, etc., is maintained constant.

In this case, 1 the present invention provides that one opening of the air passage is located inside the lamp, and the opening is located above the breathing hole, so that water from outside the lamp flows from below to above. The structure is designed to allow entry. Therefore, it is difficult for water to enter from the outside, and the length of the air passage is substantially extended.

〔Example〕

FIG. 1 shows one example of an automobile lamp A,
The lamp A has a lens B, a housing C, and a bulb D. Hereinafter, embodiments will be described based on drawings corresponding to the cross-sectional view taken along line E-E in FIG.

In the first embodiment, as shown in FIG. 2, an automobile lamp 1 includes a lens 2, a housing 3, and a bulb 4.
is airtightly attached to the outer peripheral edge 5 of the housing 3 using a hot melt sealant, rubber packing, or the like. Inside the automobile lamp 1, an air passage 8 is vertically formed integrally with the housing 3, and the lower end of the air passage 8 has a breathing hole 6 formed in the lower surface of the housing 3. On the other hand, the other opening 7 is provided at the upper end of the air passage 8. FIG. 3 shows a perspective view of the inside of the housing 3 provided with the air passage 8 according to this embodiment. Thus, in this embodiment, since the air passage 8 is formed inside the housing 3 integrally, it is different from the conventional one. It is not necessary to add a separate pipe to the breathing hole 6 or to bend the pipe into a U-shape or an L-shape as shown in FIG. In addition, since the air passage 8 is inside the automobile lamp l, it will not fall off.
Moreover, since a flexible member such as rubber is not used, the mounting posture can be determined reliably.

Therefore, the breathing hole structure of the automotive lamp 1 according to this embodiment is superior in workability, inexpensive, and highly reliable compared to the conventional structure.

FIG. 4 shows a modification of the first embodiment, in which the air passage 18 is formed in an inverted shape inside the automobile lamp 11, which further improves the effect of preventing the intrusion of splashes and the like. become. Furthermore, there are numerous variations of the 1st + IM1 + Hani 1 example. In this example, a weir 29 is provided near the opening 27 of the air passage 28 inside the automobile lamp 21. This will further enhance the waterproofing effect. In addition, in FIG. 6, a cover 39 is provided to cover the outer peripheral edge 35 of the housing 33 of the automobile lamp 31 and the breathing hole 36 at the lower end of the air passage 38 from the outside of the lamp 31. This will further enhance the waterproof effect.

Next, a second embodiment will be explained. As shown in FIG. 7, a breathing hole 46 is bored in the rear wall of the housing 43 of the automobile lamp 41, and a pipe-shaped air passage 48 is provided in the breathing hole 46.
In this embodiment, the air passage 4 is provided so as to penetrate through it.
The opening 47 inside the lamp 41 of No. 8 is a breathing hole 46.
The other opening 49 is located below the breathing hole 46 and approaches the rear wall of the housing 43, and the air passage 48 is generally formed in a substantially S-shape. Note that guide ribs may be provided to increase the rigidity of the air passage 48 outside the lamp 41. In this way,
In this embodiment, approximately S
Because it is shaped like a letter, it has a high waterproofing effect against splashes and the like.

Next, a third embodiment will be described. In this embodiment, as shown in FIG. 8, an edge 59 is provided at the opening edge of a breathing hole 56 formed in a housing 53 to project inward. It is connected by fitting into the L-shaped air passage 58 at the # portion 59 . At this time, the opening 57 of the air passage 58 is installed above the breathing hole 56.

In this manner, in this embodiment, since the air passage 58 is connected inside the automobile lamp 51, the air passage 58 is prevented from falling off, and reliability is high.

Further, in the automobile lamp 61 according to this example, which is shown in FIG. 9 as a modification of the present example, the air passage 68 is formed integrally with the housing 63. To create the housing 63 according to this example, the housing 63 and the unbendable air passage 68 are first formed integrally, and then the air passage 68 is bent into an L-shape or the like by heating or the like. Therefore, they can be easily created without using complex types. At that time, the opening 67
should be located above the breathing hole 66.

Furthermore, another modification of this embodiment is shown in No. 10rIIJ. In this example, an air passage 78 is integrally formed inside the automobile lamp 71 in the breathing hole 76 bored in the housing 73. A rib 79 for preventing water splashing is provided on the outside of the lamp 71. This will further enhance the waterproof effect. Furthermore, the 11th
By providing the air passage 88 on the back side of the reflector 89 as shown in the figure, the air passage 88 can pass through the lens 82.
81 Car lights that look good if they are hidden from view
is obtained. Furthermore, as shown in FIG. 12, the housing 93 may be recessed at the peripheral edge of the breathing hole 96 to prevent water from splashing on it.

〔Effect of the invention〕

In the present invention, one opening of the air passage is inside the lamp,
Further, the opening is located above the breathing hole formed in the housing. Therefore, with the air passage having the same length as before, the air passage on the outside of the automotive lamp can be shortened by the amount of air passage inside, so it does not take up space on the car body, and the outside of the lamp is the same as before. The long air passage can prevent splashes and the like from entering more effectively than before due to the length of the air passage inside. Furthermore, the lamp of the present invention is inexpensive and highly reliable.

[Brief explanation of drawings]

wIJ1 is a perspective view of the automotive lamp according to the first embodiment, FIG. 2 is a sectional view equivalent to the line E-E in FIG. The figure is a sectional view corresponding to the E-E line of FIG. 1 according to the modification of FIG. 2, FIG. 5 is a sectional view equivalent to the E-E line of FIG. 1 according to the modification of FIG. The figure is a sectional view corresponding to the line E-E in FIG. 1 according to a modification of FIG.
Figure s7 is a cross-sectional view equivalent to line E-E in Figure 1 according to the second embodiment, Figure 8 is a cross-sectional view equivalent to line E-E in Figure 1 according to the third embodiment, and Figure 9. is a cross-sectional view corresponding to the line E-E of FIG. 1 according to the first modification of the modification of FIG. 8, and FIG.
FIG. 12 is an enlarged cross-sectional view of the main part of FIG. 9 according to the modification of FIG. 7, and FIG. 13 is a conventional example. FIG. 2 is a sectional view corresponding to line EE in FIG. 1; A, 1, 11, 21, 31, 41° 51.61, 71.81... Automobile lamp 8.18.
28.38.48°58.6g, 78.88... Air passage C, 3, 33,
43,53゜63.73.93...Housing 6.36.48.56゜66.76.96...Breathing hole (21.2゜Figure 1B 2rA 3rd prisonerFigure 7) 9 i No. 10 No. 11 Fig. 12

Claims (2)

[Claims] (1) In a breathing hole structure in which an air passage is provided in a breathing hole drilled into the housing of an automobile lamp, one opening of the air passage is inside the lamp, and the opening is located above the breathing hole. A breathing hole structure of an automotive lamp characterized by being located at. (2) A breathing hole structure for an automobile lamp according to claim 1, wherein the air passage is formed integrally with the housing.