JPH044884Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a louver attached to the side surface of a body, and particularly to a ventilation louver that prevents washing water from flowing in during high-pressure car washing.

[Prior Art] A vehicle (hereinafter also referred to as an automobile) has a louver attached to the rear side of the vehicle body or the like for ventilation inside the vehicle interior. In the conventional louver 50, as shown in FIG. 4, an appropriate number of fins 52 are provided in the space formed by the frame 51, with the outer ends facing downward, or, although not shown, the fins are tilted rearward. There are some things that have been set up.

[Problem to be solved by the invention] In the above conventional louver equipped with fins,
When a car is washed under high pressure, a stream of water discharged from the side of the car body toward the car body easily enters the louver through the gap between the fins. The water that has entered the inside of the louver accumulates in the lower part of the inside of the louver, and is difficult to be discharged from there to the outside, resulting in problems such as rusting in ducts etc. connected to the louver.

In view of the above, this invention is a ventilation louver that prevents car wash water from entering during high-pressure car washing, and prevents rust from forming on internal ducts etc. due to the entering water. The purpose is to provide the following.

[Means for Solving the Problems] In order to achieve the above object, this invention is a ventilation louver for a vehicle in which a frame body is attached to a side plate of a body, in which a frame body is provided between opposing inner wall surfaces of the body. ,
A plurality of first fins for partitioning are installed in parallel in the horizontal or vertical direction at predetermined intervals, and on both back surfaces of the first fins and on the back side of the wall surface of the frame body at a position facing the first fins. are provided with second fins for changing direction, and a ventilation passage communicating between the inside of the car and the outside of the car is formed between the opposing first fins and the second fin, and furthermore, a ventilation passage is provided between the inside of the car and the outside of the car of the ventilation passage. Each of the second fins has its tip directed toward the outside of the vehicle so as to ensure smooth air flow and prevent water from entering the inside of the vehicle from the outside of the vehicle.
The structure is such that the opposing second fins are inclined at an angle of 90° or less, and each tip of the opposing second fins is located parallel to and on the same plane as the first fin, and is separated by a predetermined gap C in the inner and outer directions. This is what I did.

[Function] In the vehicle ventilation louver configured as described above, the air flowing from the inside of the ventilation path toward the outside of the vehicle is directed along the inclination angle of the second fin for direction change and through the gap at the tip of the second fin. It flows between the first partition fins through C and smoothly flows to the outside of the vehicle.

On the contrary, the water that flows between the first partition fins and flows from the outside of the vehicle to the inside of the vehicle in the ventilation passage is stopped by the second fin due to the inclination angle, and no water flows further inside the vehicle. It is possible to actively prevent the infiltration of

[Example] Next, this invention will be described based on an example shown in the drawings.

In FIGS. 1 and 2, side plates 1 on both rear sides of an automobile body 1 (only the left side is shown in the figure)
A ventilation louver 2 is attached to a through a seal member 12. The louver 2 has a frame 3 that is horizontally long and approximately rectangular. This frame body 3 includes an upper horizontal member 4, a lower horizontal member 4A, a front vertical member 5, and a rear vertical member 5A.
It is made up of The frame 3 has a bifurcated cross section, and its outer end is closed. In the rectangular space surrounded by the frame 3, there are a plurality of first horizontal partitioning fins 6 at predetermined intervals (in the illustrated example 3) are provided. Now, assuming that the first fins 6 are the upper first fin 6, the center first fin 6A, and the lower first fin 6B, the space between the upper first fin 6 and the horizontal inner plate 4a of the upper horizontal member 4, and the lower 1
The distance between the fins 6B and the horizontal inner plate 5Aa of the lower horizontal member 4A is also the same as the distance between each of the first fins 6, 6A and 6B. Further, each of the first fins 6, 6A, and 6B has its outer end aligned with the outer end 5a of the front lateral member 5, but its inner end projects inward from the inner end 5b of the front lateral member 5. At the inner (rear side) ends of the upper first fin 6 and the lower first fin 6B, the respective first fins 6, 6B are provided.
An upper second fin 7 and a lower second fin 7A, and an upper second fin 8 and a lower second fin 8A are formed at the upper and lower sides at an angle of 45°. Further, the second fin 6A in the center has a lower second fin 7A of the upper first fin 6, and an upper second fin 9 and a lower second fin 7A on the outside of the upper second fin 8 of the lower first fin 6B. 9
A is formed symmetrically at an angle of 45°.

Furthermore, the inner end of the inner plate 4a of the upper horizontal member 4 of the frame body 3 and the inner end of the inner plate 4Aa of the lower horizontal member 4A,
A lower second fin 10 and an upper second fin 11 are respectively formed. Then, the lower second part of the upper horizontal member 4
The fins 10 are formed downward at 45 degrees with respect to the inner plate 4a of the upper horizontal member 4, and the upper second fins 11 of the lower horizontal member 4A are also formed upward at 45 degrees with respect to the inner plate 4Aa of the lower horizontal member 4A. ° is formed. The tip of the lower second fin 10 of the upper horizontal member 4 and the tip of the upper second fin 7 of the upper first fin 6 are located on the same horizontal plane, and a gap C is formed. Similarly, the tip of the lower second fin 7A of the upper first fin 6, the tip of the upper second fin 9 of the center first fin 6A, the tip of the lower second fin 9A of the center first fin 6A, and the lower first fin 6A. The relative position between the tip of the upper second fin 8 of the fin 6B, the tip of the lower second fin 8A of the lower first fin 6B, and the tip of the upper second fin 11 of the lower horizontal member 4A is The relationship between the tip of the fin 10 and the tip of the upper first fin 6 and the upper second fin 7 is the same.

There is a second duct 13 inside the louver 2, and this second duct 13 is connected to the first duct 14 by a connecting plate 15 and seals 16 on both sides of the connecting plate 15.
17 in an airtight manner. Also, the first
The duct 14 is configured such that its inner flange 14a is attached to the passenger compartment side. In addition, connection plate 1
Butterfly valves 18 and 19 are installed at the top and bottom of the duct 5 to prevent outside air, water, etc. from entering into the first duct 14, and when there is no air flow from the passenger compartment, both valves 18 and 19 close. 19 is in a closed state.

In the above configuration, when the body 1 of the automobile is washed by a high-pressure car washer, car wash water is sprayed toward the body 1 from the side of the body 1 and enters the louver 2 . In this case, the car wash water is restricted from entering the louver 2 by each of the first fins 6, 6A, and 6B, and becomes approximately horizontal. , the upper second fin 9 of the center first fin 6A, the lower second fin 9A, and the upper second fin 8 of the lower first fin 6B.
and collides with the lower second fin 8A. In other words, the water flow colliding with the upper and lower second fins 7, 7A of the upper first fin 6 has a velocity vector that is perpendicular to the respective second fins 7, 7A, and a velocity vector that is horizontal and opposite to the direction of approach. is decomposed into a velocity vector and a velocity vector.
That is, the water flow is not only restricted by the second fins 7, 7A, but also discharged to the outside from the louver 2 whose direction is changed in the direction opposite to the direction of entry. This water flow in the opposite direction to the entering direction acts as a resistance to the water flow entering the louver 2 and weakens its speed.

Then, the action of the upper and lower second fins 9, 9A of the first central fin 6A and the upper and lower second fins 8, 8A of the lower first fin 6B, as well as the lower second fin 10 and the lower part of the upper horizontal member 4. Upper second fin 11 of the horizontal member 4A
The action of the upper first fin 6 is also similar to that of the upper and lower second fins 7, 7A. Therefore, it is possible to prevent car wash water from entering inside the louver 2 during high-pressure car washing.

In the above embodiment, the upper and lower second fins 7,
Although the angle of inclination of 7A with respect to the upper first fin 6 is set to 45°, if this angle is within the range of 45° to 90°, the intrusion of car wash water can be prevented in the same manner as described above. In addition, the upper and lower second fins 7, 7A of the upper first fin 6
When changing the angle of the other first fins 6A, 6
The angle of the second fin of B and the upper and lower horizontal members 4, 4A
The angle of the third fins 10 and 11 will also be changed.

FIG. 3 shows a second embodiment of the louver. This louver 2' has an upper second fin perpendicular to the upper first fin 6.
The fin 7' and the lower second fin 7'A are also connected to the center first fin 7'A.
The upper second fin 9' and the lower second fin 9'A, which are perpendicular to the fin 6'A, are further connected to the lower first fin 6'B.
An upper second fin 8' and a lower second fin 8'A are provided at right angles to the upper second fin 8'A. Third fins 10' and 11' parallel to the second fin 7'A are also provided on the upper horizontal member 4 and the lower horizontal member 4A. The direction of the water flow to the louver 2' during car washing is the direction shown by the arrow, and some of the water flow will enter the louver 2'. ’ was able to make it sufficiently waterproof.

In the above embodiment, the first fins are provided horizontally with respect to the frame 3, but they may be provided vertically with respect to the frame 3.

[Effects of the invention] As described above, according to this invention, the air flowing from the inside of the vehicle to the outside of the vehicle in the ventilation passage of the ventilation louver is directed along the inclination angle of the second fin for direction change and along the second fin for direction change. It flows between the first partitioning fins through the gap C between the tips of the fins, and flows smoothly to the outside of the vehicle.

On the contrary, the water that flows between the first partition fins and flows from the outside of the car to the inside of the car in the ventilation passage is stopped by the inclination angle of the second fin, and no longer flows into the inside of the car. Infiltration can be actively prevented. As a result, it is possible to prevent the duct or the like connected to the inside of the louver from being corroded by water.

In particular, the respective tips of the opposing second fins are located parallel to and on the same plane as the first fin, and are separated by a predetermined gap C in the inner and outer directions.
Therefore, it is possible to see from the opening on the outside of the ventilation passage to the opening on the inside of the car, and it becomes clear whether the ventilation passage is clogged with mud or dirt. Furthermore, since the ends of the opposing second fins are located on the same surface without overlapping, when mud is clogged in the ventilation passage, the mud can be easily removed from the outside of the vehicle.

Furthermore, when the frame of the ventilation louver, the first fin, and the second fin are integrally molded by injection molding of synthetic resin, the cutting structure of the mold becomes simple, and the frame, the first fin, and the second fin are integrally molded. It is also possible to reduce costs by integrally molding the two fins.

[Brief explanation of drawings]

1 to 3 show an embodiment of this invention, FIG. 1 is a perspective view of an automobile body, FIG. 2 is an enlarged cross-sectional view taken along the line - in FIG. 1, and FIG. 3 is a louver of the second embodiment. FIG. 2 is a diagram corresponding to FIG. FIG. 4 is a sectional view of a conventional ventilation louver. 1...Body, 1a...Side plate, 2...Louver,
3... Frame body, 6, 6A, 6B... First fin,
6, 6'A, 6'B...1st fin, 7, 7'...
Upper second fin, 7A, 7'A...lower second fin,
8, 8'... Upper second fin, 8A, 8'A... Lower second fin, 9, 9'... Upper second fin, 9A,
9'A...lower second fin, 10,10'...lower second fin
Fin, 11, 11'...Top second fin.

Claims (1)

[Claims for Utility Model Registration] A ventilation louver for a vehicle in which a frame body is attached to a side plate of a body, wherein the opposing inner wall surfaces of the frame body are parallel to each other in the horizontal or vertical direction with a predetermined interval between them. A plurality of first fins for partitioning are constructed, and second fins for changing direction are provided on both rear surfaces of the first fins and on the rear side of the wall surface of the frame body at a position facing the first fins. , the opposing first
A ventilation path is formed between the fins and between the second fins, which communicates the inside of the car with the outside of the car, and the ventilation path is designed to allow smooth air flow from the inside of the car to the outside of the car, and to prevent water from entering from the outside of the car to the inside of the car. Each of the second fins has its tip directed toward the outside of the vehicle and is inclined at an angle of 90° or less so as to prevent
A ventilation louver for a vehicle, characterized in that it is located parallel to and on the same plane as the first fin, and is separated by a predetermined gap C in the interior and exterior directions.