JPS625370Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an air vent device used in a vehicle such as an automobile.

Conventionally, as shown in Japanese Utility Model Application Publication No. 55-47464, an air passage that communicates the interior of the vehicle with the atmosphere is provided in the door of an automobile, and this air passage is used to prevent pressure from rising inside the vehicle when the door is closed. An air vent device is known that is equipped with a one-way valve that opens when the air vent device is opened. However, recently, due to improved airtightness of vehicle interiors, increased air volume for air conditioning, and larger doors, especially in two-door cars, there is a tendency to require a larger cross-sectional area for air passages. However, with the conventional ones mentioned above, it is difficult to make large air vent holes in one place due to the structure of the car body and the appearance, and there is a problem in that the air vent holes are dispersed in various parts.

The present invention solves the above-mentioned problems and provides a vehicle air vent device that allows a large-area air vent hole to be drilled in one location without damaging the appearance, improves air vent efficiency, and further reduces costs. It is intended to.

In order to achieve this purpose, the vehicle air vent device of the present invention is provided with air vent holes arranged in the front cowl of a vehicle such as an automobile, approximately symmetrically with the blower suction holes of the air conditioner. A one-way valve that opens when the pressure inside the vehicle increases is installed in the air passage that communicates the interior of the vehicle with the atmosphere through a hole.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a car body. A front cowl 3 is disposed in front of the lower edge of a windshield 2 of the car body 1, and a front hood 4 is provided in front of the front cowl 3. It is arranged. A blower suction hole 5 of an air conditioner (not shown) is formed on one side of the front cowl 3, and an air vent hole 6 is formed on the other side of the front cowl 3 at a position substantially symmetrical to the blower suction hole 5. It is arranged and formed. The air vent hole 6
forms an opening to the atmosphere of the air passage 9 formed in the front bulk 7 provided below the front cowl 3 and in the air vent box 8 fixed to the front bulk 7, and allows the air passage 9 to enter the passenger compartment. The opening is formed by a hole 8a provided in the air vent box 8. And this air release box 8
The upper end of a damper-shaped one-way valve 10 made of an elastic material is pivotally mounted therein. It is preferable that the valve 10 is configured so that the hole 8a opens only when the pressure inside the vehicle compartment increases, and maintains a slight opening even when the valve 10 is closed without fully closing.

In the air vent device of the embodiment configured as described above, the air vent hole 6 is provided in the front cowl 3 almost symmetrically with the blower suction hole 5, so that a large area air vent hole can be provided without spoiling the appearance. At the same time, the cross-sectional area of the air passage 9 can be increased, so even in two-door cars with large doors, the one-way valve 1 can be used when closing the door.
0 can be opened to release a sufficient amount of air from the interior of the vehicle to the atmosphere, thereby suppressing a rise in pressure inside the vehicle. Further, in this case, since the air passage 9 and the air vent hole 6 are provided at one location, it is more efficient than when these are distributed at multiple locations. Furthermore, since the air vent device is provided in one location, the number of parts and processing steps are smaller than in the case where the air vent device is provided in multiple locations, reducing costs and increasing the degree of freedom in designing the vehicle body.

In the present invention, a duct that communicates the air vent hole with the air vent box may be provided in the front bulk, or a partition plate that partitions the air passage may be provided in the front bulk. In addition, in the present invention, if the air vent hole is located near the side edge of the vehicle body or extended, air can be sucked out from the vehicle interior by negative pressure during driving, and cigarette smoke can be discharged. Furthermore, in the present invention, a normally open small hole may be provided in the air vent box in addition to the hole that is opened and closed by a valve, so that the inside of the box communicates with the vehicle interior.

As explained above, according to the present invention, by providing the air vent hole in the front cowl and arranging it almost symmetrically with the blower suction hole of the air conditioner, the air vent hole can be installed in one place without spoiling the appearance. It is possible to provide a large-area air vent hole, resulting in good air vent efficiency and cost reduction.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of an automobile equipped with an air vent device according to an embodiment of the present invention, and FIG. 2 is an enlarged sectional view taken along the line - in FIG. 1. 1...Vehicle body, 2...Windshield, 3...Front cowl, 4...Front hood, 5...Blower suction hole, 6...Air vent hole, 7...Front bulk, 8...Air vent box, 8a...
...hole, 9...air passage, 10...one-way valve.

Claims (1)

[Scope of utility model registration request] An air vent hole is provided in the front cowl of the vehicle, arranged almost symmetrically with the blower suction hole of the air conditioner, and the air vent hole connects the air passage that communicates the interior of the vehicle with the atmosphere. A vehicle air vent device characterized by having a one-way valve that opens.