JPS625368Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to improvements in ventilation systems for automobiles.

Conventionally, as shown in FIGS. 1 and 2, ventilation systems for automobiles have been installed at a location below the rear pillar 4 of the vehicle body 2 in order to circulate the air taken into the vehicle interior from the front of the vehicle interior and send it out to the outside of the vehicle interior. A duct 6 was provided for communicating between the inside of the vehicle and the outside of the vehicle.
A garnish 12 is incorporated into an opening 10 formed in the outer panel 8 of the vehicle body of the duct 6, and an opening 16 is also formed in a panel 14 on the inside of the vehicle interior, into which a garnish 18 is incorporated. Furthermore, at the upper edge of the opening 16 formed in the interior side panel 14,
A single valve 24 made of a flat rubber member and open only in one direction is installed so that air can flow only from the interior 20 of the vehicle toward the exterior 22 of the vehicle. The action of the valve 24 causes the air in the vehicle interior 20 to flow out to the vehicle exterior 22, and prevents exhaust gas, etc. from flowing into the vehicle interior 20 from the vehicle exterior 22, and rainwater, etc. from entering the vehicle interior. It was composed of In addition, 30 is a rear shelf.

However, according to the above configuration, since the valve 24 made of a flat rubber member is attached to the upper green part of the opening 14 of the panel 12 on the inside side of the vehicle, the backflow of air into the duct 6, If a small negative pressure fluctuation occurs near the opening 10 of the outer panel 8, the open end 26 of the valve 24 will fly up, allowing exhaust gas to flow into the cabin from outside the vehicle, or rainwater to infiltrate. Reliability when closing the valve was low.

Therefore, it was considered to increase the weight of the valve 24 so that the open end 26 of the valve 24 would not easily fly up, but with this configuration, vibrations of the vehicle body and negative pressure Valve 24 due to fluctuations in
The open end 26 of the opening 14 undergoes a small opening and closing operation.
This has caused a problem in that it collides with the edge 28 of the blade and generates noise. In addition, since the valve 24 has a heavy weight, the outer plate 8 of the vehicle body 2 may
When the negative pressure near the opening 10 of the valve 2 is small, the valve 2
4 did not open and there were other problems, such as the lack of ventilation in the passenger compartment.

The present invention has been devised for the purpose of solving the above-mentioned problems.

Hereinafter, one embodiment of the present invention will be described in detail based on FIG. 3. It should be noted that portions that are substantially the same as those in the above-described embodiment are designated by the same reference numerals as those shown in the above-mentioned embodiment, and detailed description thereof will be omitted.

The opening 16 on the inside side of the duct 6 has an opening 16
One end portion 36 of the first valve 34 made of a flat rubber member is attached to the upper edge portion 32, and the wall surface 38 of the duct 6 also serves as a back plate for regulating the maximum opening degree of the first valve 34. It is composed of Further, a horizontally extending panel 40 dividing the opening 16 is formed approximately at the center of the opening 16, and one end portion 44 of a second valve 42 made of a flat rubber member is attached to the panel 40. It is being
Further, on the back of the second valve 42, the same valve 42 is provided.
The back plate 44 is formed of a curved wall surface so as to regulate the maximum opening degree of the first valve 34 and the second valve 42 so that the airflow flowing out from the opening of the first valve 34 and the airflow flowing out from the second valve 42 can easily flow. There is. The back support plate 44 is made of a hard member such as a sheet metal member or a hard resin member. According to the above configuration, since the size of each valve is smaller than that of the conventional one, reliability when the valve is closed can be considerably improved. Since there is no need to make it heavier, noise generation etc. can be significantly prevented. Also, when air flows out from the interior side 20 to the exterior side 22 of the vehicle, the first valve 3
A back plate is provided on the back of the 4th and 2nd valves 42, respectively, to prevent the open ends of the valves from vibrating, allowing air to flow out smoothly, and improving ventilation inside the vehicle. It is well done.

In addition, the present application is not limited to two valves, but may be three or four valves, as long as the number of valves is plural.
Even by increasing the number of sheets, the same effect as in the above embodiment can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an overall view of a conventional device, FIG. 2 is a sectional view taken along the - arrow in FIG. 1, and FIG. 3 is a sectional view showing a portion corresponding to FIG. 2 of the present embodiment. 2... Vehicle body, 6... Duct, 8... Outer plate, 1
0,16...Opening, 14...Interior panel, 3
4, 42... Valve, 38, 44... Back plate.

Claims (1)

[Scope of utility model registration request] A duct that communicates between the interior and exterior of the vehicle, and a plurality of elastic members formed in the opening on the inside of the vehicle interior of the duct, the upper end of which is fixed, and the lower end of which is bendable inward of the duct in the vertical direction. The vehicle is characterized by having a plate-shaped valve provided therein, and a back plate extending in the flow line direction within the duct and abutting substantially the entire surface of the outer side surface of each of the valves in the passenger compartment when the valve is in the open state. Automotive ventilation system.