JPH057050Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a cowl net structure for an automobile.

[Prior art]

Generally, in an automobile, as shown in FIG. 4, an outside air intake chamber 3 into the vehicle interior is provided at the front lower part of the windshield 2, that is, at the lower part between the front end of the windshield and the rear edge of the hood.

The outside air intake chamber 3 includes an upper panel 5, a front panel 6,
Consisting of a rear panel 7 and a lower panel 8, the upper panel 5 is provided with an outside air intake port, a cowl net 12 is stretched over this, and the rear panel 7 is connected to an outside air introduction pipe 14 to the passenger compartment. has drain hole 1
5 will be provided. The upper end of the outside air intake chamber 3 is in contact with the rear edge 18 of a hood 17 that covers the engine compartment.

Therefore, the outside air E that enters along the upper surface of the hood 17 as the car runs comes into contact with the windshield 2, and a portion of the air flows around the rear edge 18 of the hood 17, thereby extending the cowl net 12. The air enters the outside air intake chamber 3 through the outside air intake port 10, and is sent into the passenger compartment via the outside air introduction pipe 14.
Regarding the configuration of such an outside air intake room,
For example, as shown in Japanese Utility Model Application No. 58-182872,
Various mechanisms have been devised.

However, the mechanism of the outside air intake chamber is required to (a) improve the performance of introducing outside air into the passenger compartment, (b) prevent water from entering when driving or washing the car, and (c) prevent foreign matter such as dead leaves from entering. Ru. Therefore, in the past, cowl nets with draining plates or cowl nets with a convex shape to expand the outside air intake area have been adopted in some car models. ) The problem was that it was not designed to fully meet the needs of the public.

[Purpose of invention]

This invention provides an automobile cowl net structure that solves the above-mentioned problems.

[Structure of the idea]

This invention is based on an outside air intake chamber that is provided at the lower part between the front end of the windshield and the rear edge of the hood and located in the vehicle width direction from the center of the vehicle body. The standing wall of
A cowl net structure for an automobile, characterized in that the cowl net is provided in a step-like manner that gradually increases in height from the center of the vehicle body in the vehicle width direction, and is stretched over an outside air intake port above an outside air intake chamber divided by the plurality of vertical walls. It is.

〔Example〕

The details of this invention will be explained below with reference to the embodiments shown in FIGS. 1 to 3.

In this invention, as shown in FIG. 1, above the outside air intake chamber 25, where outside air E enters from the front along the top surface of the hood 17 and hits the windshield 2 as the car runs,
This idea was devised by focusing on the fact that the flow changes direction left and right and flows in the width direction of the vehicle, as shown by Ea.

As shown in FIG. 2, the outside air intake chamber 25 is formed horizontally in the vehicle width direction (FIG. 2 shows the vehicle center line C-
The upper panel 27 is a stepped wall 2 that gradually becomes higher in the vehicle width direction from the center of the vehicle body.
It has 8, 29, 30. And these standing walls 2
8, 29, 30, outside air intakes 28a, 2
9a and 30a are formed, and a cowl net 32 is stretched over each as shown in FIG.

The lower panel 34 of the outside air intake chamber 25 has a standing wall 2.
A vertical outside air introduction duct 36 is fixedly installed on the vehicle width side so as not to be located below 8, 29, 30, and a communication duct 37 connected to the passenger compartment is formed at the lower part of the vertical outside air introduction duct 36. A blower 39 driven by a motor 38 is installed inside the blower 39 .

Therefore, the outside air E changes its direction to Ea and flows along the outside air intake chamber 25 formed in the vehicle width direction, and a portion directly passes through the cowl net 32 and enters the outside air intake chamber 2.
5, but the other part hits the standing walls 28, 29, 30, increases the pressure and passes through the cowl net 32,
The air enters the outside air intake chamber 25. Then, it is propelled by the blower 39 and sent into the vehicle compartment.

Also, car wash water G etc. may invade the outside air intake chamber 25, but as shown in FIG.
9 and 30 and then scattered in the reflection direction, and the water drain hole provided in the lower panel 34 (not shown here)
The water is then drained outside the vehicle. Since the outside air introduction duct 36 is not located below the vertical walls 28, 29, and 30, the car wash water G passes through the outside air introduction duct 36.
No intrusion into the vehicle compartment. Furthermore, standing wall 28,2
By extending the lower edges 28b, 29b, and 30b of 9 and 30 downward, it is possible to reliably prevent the car wash water G from entering the vehicle compartment.

[Effect of idea]

This idea was developed as described above, focusing on the fact that the outside air that enters when the car is running changes its flow in the width direction of the car, and a step-shaped vertical wall is installed in the outside air intake chamber formed in this direction. , outside air is actively taken in through the cowl net on the top surface. That is, the outside air hits the vertical wall, increases its pressure, enters the outside air intake chamber through the cowl net, and is sent into the passenger compartment, so the performance of introducing outside air into the passenger compartment is significantly improved.

In addition, since the outside air intake duct 36 of the outside air intake room is not located below the standing wall, even if car wash water etc. enters from an oblique direction, it will hit the standing wall and be scattered in the reflected direction, causing the outside air introduction duct to Intrusion into the vehicle compartment is prevented without entering the vehicle. In particular, if the lower edge of the standing wall is extended downward, intrusion prevention will be ensured.

Since the cowl net is provided as described above, it is of course possible to prevent foreign matter such as dead leaves from entering the outside air intake chamber.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of this invention; Figure 1 is a plan view of the area around the cowl net of an automobile; Figure 2 is a sectional view of the area around the cowl net in the vehicle width direction;
3 is a perspective view of the main part of FIG. 2, and FIG. 4 is a sectional view showing the structure around a general cowl net. 2... Windshield, 17... Hood, 25
...Outside air intake room, 28,29,30...Standing wall, 2
8a, 29a, 30a...Outside air intake, 32...
Cowl net.

Claims (1)

[Scope of Claim for Utility Model Registration] In an outside air intake chamber that is provided at the lower part between the front end of the windshield and the rear edge of the hood and located in the vehicle width direction from the center of the vehicle body, the upper part of the said outside air intake chamber is A plurality of standing walls are provided in a step-like manner that gradually increases in height from the center of the vehicle body in the vehicle width direction, and a cowl net is stretched over the outside air intake port above the outside air intake chamber divided by the plurality of standing walls. An automobile cowl net structure characterized by: