JPH0597062A - Automotive cowl louver - Google Patents

Abstract

PURPOSE:To ensure a given ventilating amount and to prevent entrance of snow into the interior of a cowl by providing a horizontal protrusion part on the opening line of an air hole formed in a cowl louver body. CONSTITUTION:An appentice cave-form horizontal protrusion 1d protruded approximately in a horizontal direction to the inside of a cowl is formed on the lower edge of the opening part of an air hole 1b, formed in a cowl louver body 1a, integrally with the cowl louver body 1a. The horizontal protrusion 1d is formed in a shape in which the notch of a part corresponding to the opening part of the air hole 1b is approximately horizontally folded in a state to be left as it is. As a result, during a snowfall, the horizontal protrusion 1d formed on the opening edge part of the air hole 1b shuts off inflow of snow from above and snow is prevented from entrance to the cowl.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cowl louver for an automobile, which is disposed in a cowl portion under a windshield of an automobile and covers an outside air inlet of a duct, and is particularly provided in a cowl louver body in a cold region. The present invention relates to a cowl louver for an automobile, which prevents snow from entering through a ventilation hole.

[0002]

2. Description of the Related Art A cowl louver disposed in a cowl portion under a windshield of an automobile covers a front of a suction port of a duct for guiding outside air flowing between a rear end of a hood and a lower end of the windshield into the interior of the automobile. The shielding member serves to introduce outside air into the cowl through a ventilation hole formed in the main body and prevent dust, dust, rain, snow, or the like from entering the cowl.

As a conventional cowl louver for an automobile of this type, there is a technique shown in FIGS. 2 and 3.

FIG. 2 is a perspective view showing a conventional cowl louver for an automobile, and FIG. 3 is a sectional view taken along the line AA of FIG.

In the figure, a pair of left and right substantially flat cowl louvers 1 are fixed at one end to a lower end portion of a windshield 2 via a protector 3, hang down obliquely downward, and at the other end via a grommet 4 or the like. It is fixed to the frame. The cowl louver 1 in FIG. 2 shows the R side. An inner hood 5 and an outer hood 6 are attached to the front of the cowl louver 1 with a predetermined space therebetween.
The space between the inner hood 5 and the inner hood 5 forms an outside air introduction space. The protector 3 is formed of synthetic rubber, and the cowl louver 1 is sandwiched between the protector 3 and the protector 3 so that stress concentration due to vibration or impact occurs, and the end portion of the cowl louver 1 and the windshield 2 come into contact with each other to generate abnormal noise. Is to prevent.

In the cowl louver 1, the cowl louver main body 1a is made of a synthetic resin material, and the cowl louver main body 1a is spaced apart from the cowl louver main body 1a by a predetermined distance at a position corresponding to an inlet of an air duct arranged in the cowl. A plurality of ventilation holes 1b are formed in a mesh shape. This vent 1b
Is formed into a circular shape or a quadrangular shape, and its opening area is formed to be small enough to secure a predetermined ventilation amount and to prevent an intruding object from the outside. And
Generally, it is integrally formed with the cowl louver body 1a by injection molding. A mounting hole 1c for inserting the grommet 4 is formed at the lower end of the cowl louver body 1a.

The conventional vehicle cowl louver is constructed as described above, and the outside air that has flowed into the outside air introduction space between the cowl louver 1 and the inner hood 5 as shown by the arrow in FIG. The air is sucked from a mesh-shaped vent hole 1b formed at a position opposite to the suction port and introduced into the suction port of the air duct. Also, the outer hood 6
At the same time, it prevents dust, dust, rain or snow from entering the cowl.

[0008]

A conventional cowl louver for an automobile is constructed as described above and has a cowl louver body 1
Since the opening area of the ventilation hole 1b formed in a is small, invasion of dust and dust can be prevented. Further, the vent hole 1b formed in the cowl louver body 1a is opened obliquely upward,
In addition, almost the entire cowl louver 1 is provided with an outer hood 6.
Since it is covered with, it is possible to prevent rain from falling vertically.

However, during snowfall in cold regions and the like, the snow not only falls vertically but is also blown away by the action of the wind, and even in the deep part of the outside air introduction space between the cowl louver 1 and the inner hood 5. May be blown. At this time,
Since the opening area of the ventilation hole 1b of the cowl louver 1 is small,
Although it is possible to prevent the intrusion of snow to some extent, wind strength, snow quality,
Depending on the conditions such as the size of snow, the air may penetrate into the cowl through the ventilation hole 1b. As a result, the snow that has entered the cowl may freeze and the actuating devices may not operate.

Therefore, in order to prevent the invasion of the snow,
Although it has been attempted to further reduce the opening area of the ventilation hole 1b of the cowl louver 1 and increase the number of holes of the ventilation hole 1b to cope with the decrease in the opening area, it is attempted to secure the required ventilation amount. When the number of the vent holes 1b provided within the predetermined area of the cowl louver body 1a is increased, the interval between the vent holes 1b becomes small, and the resin flow during the injection molding becomes poor, so that molding can be performed. There wasn't.
For this reason, although the opening area of the vent hole 1b is made as small as possible for injection molding, the fact is that it has not yet completely prevented snow from entering.

For this reason, the S having a fine mesh of about 1.5 mm on the back side of the ventilation hole 1b of the cowl louver 1 so that a predetermined ventilation amount can be secured for cold regions.
A US (stainless steel) net is attached to prevent snow from entering. However, even in this case, there was a limit to the size of the mesh due to the relationship with the air flow rate and the like, and it was not possible to completely prevent the intrusion of snow. Furthermore, two types, one with the SUS net for cold climates and one without the SUS net, are required, resulting in an extra process and an increase in cost, as well as part management. There was a problem such as annoyance.

[0012] Therefore, an object of the present invention is to provide a cowl louver for an automobile which can secure a required ventilation amount and can prevent snow from entering the cowl.

[0013]

A cowl louver for an automobile according to the present invention has a horizontal projection provided at an opening edge of a vent hole formed in a main body of the cowl louver.

[0014]

In the present invention, the outside air flowing between the cowl louver and the inner hood flows into the cowl through the opening of the ventilation hole of the cowl louver and the horizontal projections formed on the edge of the ventilation hole. The amount of ventilation of is secured. Further, the horizontal protrusion formed on the opening edge of the vent hole acts as an eaves to block the snow blown between the cowl louver and the inner hood and prevent the intrusion into the cowl.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

FIG. 1 is a sectional view of a cowl louver for an automobile according to an embodiment of the present invention. In the figure, the same reference numerals as those in FIGS. 2 and 3 are the same as or correspond to the conventional constituent parts.

In the figure, a substantially flat cowl louver 1 is shown.
Similar to the conventional example, one end is fixed to the lower end portion of the windshield 2 via the protector 3, hangs obliquely downward, and the other end portion is fixed to the frame via the grommet 4 or the like. This cowl louver 1 is a cowl louver main body 1
a is formed of a synthetic resin material such as reinforced PP (polypropylene) added with talc or the like. The cowl louver body 1a is provided with a plurality of ventilation holes 1b which are formed in a mesh shape at predetermined positions at positions corresponding to the suction ports of the air ducts arranged in the cowl. This vent 1b
Is formed into a circular shape or a quadrangular shape, and its opening area is formed to be small enough to secure a predetermined ventilation amount and to prevent an intruding object from the outside.

Further, at the lower edge of the opening of the vent hole 1b formed in the cowl louver main body 1a, an eave-shaped horizontal projection 1d is provided integrally with the cowl louver main body 1a so as to project substantially horizontally inside the cowl according to the present invention. Has been. The horizontal projection 1d has a shape in which a notch in a portion corresponding to the opening of the ventilation hole 1b is bent in a substantially horizontal direction as it is, and can be integrally formed with the cowl louver body 1a by injection molding.

Next, the operation of the vehicle cowl louver of the present embodiment constructed as described above will be explained.

As shown by the arrow in FIG. 1, the outside air flowing into the outside air introduction space between the cowl louver 1 and the inner hood 5 has a mesh-like shape which is formed at a position facing the suction port of the air duct in the cowl. The air flows through a gap between the ventilation hole 1b and the horizontal projection 1d in a substantially horizontal direction and is introduced into the suction port of the air duct. At the same time, the cowl louver 1 prevents dust and dirt from entering the cowl by the flat surface portion of the cowl louver main body 1a and the mesh portion having the vent holes 1b.

Further, in case of rain, almost all of the cowl louver 1 is covered with the outer hood 6, and the ventilation hole 1b formed in the cowl louver body 1a is opened obliquely upward and at the edge of the opening. The horizontal projection 1d protruding in a substantially horizontal direction exerts a blocking action to prevent rain from entering the cowl.

On the other hand, at the time of snowfall, the snow may be blown away not only in the vertical direction but also due to the action of wind and the like, and may be blown into the inner portion of the outside air introducing space between the cowl louver 1 and the inner hood 5. The horizontal projection 1d provided at the opening edge of the vent hole 1b blocks the inflow of snow from above and prevents the snow from entering the cowl.

As described above, the cowl louver for an automobile of the above-described embodiment has the vent hole 1 formed in the cowl louver body 1a.
A horizontal projection 1d is provided on the opening edge of b.

Therefore, according to the above-described embodiment, the outside air flowing between the cowl louver 1 and the inner hood 5 passes through the opening of the ventilation hole 1b of the cowl louver 1a and the horizontal projections 1d formed on the edge thereof. Since it flows into the cowl, the required amount of ventilation can be secured. Also, the vent hole 1b
The horizontal projection 1b formed on the opening edge of
Since the snow blown between the cowl louver 1 and the inner hood 5 is blocked, it is possible to prevent the snow from entering the cowl. As a result, it is possible to prevent snow from penetrating into the cowl and freezing to damage the actuating devices.

Further, since the cowl louver 1 can integrally mold the cowl louver body 1a and the horizontal projection 1d by injection molding, it is not necessary to attach a SUS net or the like to the back surface of the ventilation hole 1b formed in the cowl louver 1 as in the conventional example. Maybe,
It can be manufactured at low cost. Further, it is possible to make common use for cold regions and general use, which facilitates parts management.

In addition, the vent hole 1 of the cowl louver body 1a
The horizontal projection 1d formed on the opening edge of b improves the rigidity of the cowl louver 1 as a whole.

By the way, the horizontal projection 1d provided on the opening edge of the ventilation hole 1b of the cowl louver body 1a of the above-described embodiment is in a form of horizontally protruding from the lower edge of the opening of the ventilation hole 1b to the inside of the cowl. However, when the present invention is carried out, the present invention is not limited to this, and it is also possible to adopt a form in which it horizontally projects from the upper edge of the opening of the vent hole 1b toward the inner hood 5. However, in this case, since the horizontal projection 1d projects into the outside air introducing space between the cowl louver 1 and the inner hood 5, it is preferable to confirm that the air flow is not disturbed.

Further, the cowl louver 1 of the above-mentioned embodiment is formed of a synthetic resin material, but the present invention is not limited to this, and a steel plate or the like is used for press working. It is also possible to integrally form the horizontal projection 1d.

[0029]

As described above, the cowl louver for automobiles according to the present invention is provided with the horizontal projection portion at the opening edge of the vent hole formed in the main body of the cowl louver. Therefore, the outside air flowing between the cowl louver and the inner hood flows into the cowl through the opening of the ventilation hole of the cowl louver and the horizontal projections formed on the edge of the cowl louver, so that a required amount of ventilation can be secured. .. Further, since the horizontal projection portion formed on the opening edge of the vent hole acts as an eaves, the snow blown between the cowl louver and the inner hood is blocked,
Invasion into the cowl can be prevented.

[Brief description of drawings]

FIG. 1 is a sectional view of a cowl louver for an automobile according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional cowl louver for an automobile.

FIG. 3 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1a Cowl louver body 1b Vent hole 1d Horizontal protrusion

Claims (1)

[Claims] 1. A cowl louver main body disposed in a cowl portion of an automobile, a ventilation hole formed in the cowl louver main body, and a horizontal projection portion provided at an opening edge of the ventilation hole. Cowl louver for automobiles.