JPH04979Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an outside air introduction structure for an automobile, and in particular to a recess in which a wiper device is housed between the lower end of a front window panel and the rear end of an engine hood. This invention relates to an outside air introduction structure in a so-called concealed type vehicle.

[Conventional technology]

As shown in FIG. 1, a so-called concealed type vehicle has a recess 4 in which the wiper device 3 is housed between the lower end of the front window glass 1 and the rear end of the engine hood 2. In general, an air intake port 6 is provided on the upper surface of the cowl top panel 5 disposed below the recess 4.
The wind flowing into the vehicle is taken into the cowl box formed by the cowl top panel 5 through the air intake port 6 and introduced into the vehicle interior.

However, with the above-mentioned outside air introduction means, the recess 4 is hidden by the rear end of the engine hood 1, so that the outside air cannot necessarily be introduced sufficiently. As shown in Fig. 2, an outside air introduction structure has been proposed in which an air intake grille 7 is provided on the engine hood 2 to allow outside air to be introduced more actively (see Japanese Utility Model Publication No. 54093/1983).

This outside air introduction structure is based on the engine hood outer 8
An outside air inlet 9 is provided on the rear horizontal surface of the engine, and an air intake grille 7 is provided above the outside air inlet 9, and between the outside air inlet 9 and an opening 11 provided in the engine hood inner 10. An air duct 12 is provided to actively introduce running air flowing along the upper surface of the engine hood 2. The air intake grille 7 is fastened and fixed to the embedded bolt 15 by a nut 14 inserted through a working hole 13 provided in the engine hood inner 10, and the lower end of the air duct 12 is connected to the opening 11 of the engine hood inner 10. is welded to the peripheral edge of the engine hood outer 8 , and in this state, the upper end is elastically supported on the back surface of the engine hood outer 8 via a sealing material 16 .

[Problem that the invention attempts to solve]

However, in the conventional outside air introduction structure configured in this way, the engine hood outer 8
An outside air inlet 9 is provided in a part of the cowl, and outside air is introduced into the passenger compartment from the air intake grill 7 disposed on the upper part of the cowl. In addition to having to install an air duct 12 to guide outside air to the air intake port 6 of the top panel 5, which made the overall structure complicated, there was also the problem that the engine hood outer 8 and engine Since the space formed by the hood inner 10 is generally narrow, the cross-sectional area of the air duct 12 cannot be made large, resulting in the problem that a sufficient amount of air cannot be obtained.

Therefore, the technical problem of the present invention is to provide an outside air introduction structure for an automobile that has a simple structure and can introduce a sufficient amount of air into the passenger compartment.

[Means for solving problems]

In order to solve the above technical problem, the present invention forms a recess in which a wiper device is housed between the lower end of the front window panel and the rear end of the engine hood, and serves as an outside air intake below the recess. In a vehicle equipped with a cowl box, the rear part of the engine hood is inclined upwardly toward the rear of the vehicle across the entire width of the vehicle, and an air intake of the cowl box is provided at the center of the rear end of the slanted engine hood. forming a notch corresponding to the inlet, and disposing an air intake grill on the notch in which an outside air passage for guiding outside air into the recess is formed;
The inlet end of this fresh air passage is located above the rear inclined surface of the engine hood, while the outlet end of the fresh air passage, which almost matches the shape of the notch, is located below the rear inclined surface of the engine hood, and the fresh air The means is that an inclined wall is formed at the rear of the passage to cause the outside air introduced into the outside air passage to collide with it and guide it toward the outlet end.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the first embodiment of the present invention shown in FIGS. 4 and 5, the rear part of the engine hood 2 is gently sloped upward toward the rear of the vehicle over the entire width of the vehicle, and a cowl is provided at the center of the rear end. A U-shaped notch 17 is formed corresponding to the air intake port 6 of the top panel 5. In addition, the front portion 19 of the notch 17
As shown in FIG. 5, the engine hood 2
An air intake grill 18 for introducing outside air is provided above the front portion 19 of the recessed notch 17 and the notch 17. . Note that the rear end edge of the engine hood 2 and the peripheral edge of the notch 17 are as follows:
Both the engine hood outer 8 and the engine hood inner 10 are hemmed.

On the other hand, the air intake grill 18 has a substantially triangular prism shape that is sized to cover the notch 17, and its longitudinal direction extends from the inclined surface 2 at the rear of the engine hood 2.
Inlet end 18a on the front side located above 0
and an outlet end 18b on the rear side located below the inclined surface 20, and an outside air passage 22 partitioned by a plurality of louvers 21 is formed. The outside air introduced into the outside air passage 22 collides with the outside air to the lower outlet end 18b.
An inclined wall 18c leading to the side is provided, and a push bolt 15 is further provided on the lower surface 23. When the air intake grill 18 is disposed above the notch 17 of the engine hood 2,
The air intake grill 18 is placed so as to cover the notch 17, the lower surface 23 of the air intake grill 18 is brought into contact with the front part 19 of the notch 17, and the embedded bolts 15 protruding downward from the engine hood outer 8 are fixed. Working hole 1 of engine hood inner 10
At the same time, both sides of the air intake grille 18 are placed on the inclined surfaces 20 on both sides of the notch 17.

Therefore, according to the above-described outside air introduction structure, the outside air passage 22 of the air intake grille 18 communicates with the notch 17 of the engine hood 2, and the front portion 19 of the notch 17 is lower than the inclined surface 20, and the outside air is The inlet end 18a of the passage 22 is located above the inclined surface 20 at the rear of the engine hood 2, making it easy to introduce outside air. A part of the introduced outside air directly enters the recess 4 through the notch 17 from the outlet end 18b, and the remaining part collides with the rear inclined wall 18c of the outside air passage 22 and then changes its direction toward the exit end 18b. It is introduced into the recess 4. Since the notch 17 is provided at a position corresponding to the air intake port 6 formed on the upper surface of the cowl top panel 5, it can be directly connected to the inlet end 18a of the outside air passage 22 or via the inclined wall 18c. A large amount of outside air that indirectly escapes to the outlet end 18b is guided directly into the cowl box from the air intake port 6.

Further, the rear end of the engine hood 2 has a notch 1
Since the windshield except for 7 is tilted upward, the running wind forms a smooth flow from the rear end of the engine hood 2 along the surface of the front window panel 1, and the rear end of the engine hood 2 turbulence is less likely to occur.

Furthermore, in the above embodiment, since the notch 17 is formed at the center of the rear end of the engine hood 2, the influence of turbulence at the notch 17 is less than when it is formed on both sides, which are affected by the front pillar. In this respect as well, the efficiency of introducing outside air into the cowl box is improved.

FIG. 6 shows a second embodiment of the present invention. Similar to the previous embodiment, a substantially U-shaped notch 17 is formed at the rear end of the engine hood 2. Although an air intake grille 24 is disposed at the upper part, unlike the previous embodiment, the engine hood outer 8 and the engine hood inner 10 are joined to each other by spot welding at the peripheral edge of the notch 17. And engine hood outer 8
At the peripheral edge of the notch 17, there is a step 2 that slopes downward.
5 is formed, and the distal end horizontal flange 26 is joined to the distal end of the engine hood inner 10 extending straight, so that the air intake grill 2
4 is formed so that its lower surface 27 corresponds to the shape of the step portion 25, and the outside air passage 28 passing through the front and rear sides of the air intake grille 24 can be formed to be larger accordingly. Further, in this embodiment, the rear end edge 30 of the lower surface 27 of the air intake grille 24 has a bent shape, and when the air intake grille 24 is installed, the rear end edge 30 of the lower surface 27 of the air intake grille 24 is bent.
0 is engaged with the tips of the flange joints of the engine hood outer 8 and the engine hood inner 10, thereby making the air intake grille 24 firmly attached. In addition, even in this example,
The inlet end 24a of the outside air passage 28 is connected to the engine hood 2.
The outlet end 2 of the outside air passage 28 is located above the inclined surface 20 at the rear of the
4b is located below the inclined surface 20, and an inclined surface 24c is formed at the rear of the outside air passage 28, which is slightly curved toward the outlet end 24b.

Therefore, in this embodiment, the outside air passage 28 of the air intake grille 24 can be made larger, so that the amount of outside air introduced can be increased accordingly compared to the previous embodiment.

Note that the notch 17 formed in the engine hood 2
It goes without saying that the shape of the air intake grille 18 and the shape of the air intake grilles 18 and 24 disposed above it are not limited to the above embodiments.

〔effect〕

As explained above, according to the outside air introduction structure for an automobile according to the present invention, a notch corresponding to the air intake of the cowl box is provided at the center of the rear end of the hood, and this notch is provided at the inlet end of the outside air passage. is located above the rear inclined surface of the engine hood, the outlet end of the outside air passage is located below the rear inclined surface of the engine hood, and an inclined wall is provided at the rear of the outside air passage for guiding outside air to the exit end side. Since a shaped air intake grill is installed, the wind flowing along the engine hood is directly introduced into the outside air passage from the inlet end, and most of it hits the sloped wall at the rear of the outside air passage and is guided to the outlet end. Although it has a simple structure, it is now possible to more actively introduce outside air into the cowl box without degrading the aerodynamic characteristics.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a concealed type vehicle, Fig. 2 is a perspective view showing an example of a conventional outside air introduction structure, Fig. 3 is a sectional view taken along the line - - in Fig. 2, and Fig. 4 is a perspective view showing the structure of the present invention. FIG. 5 is an exploded perspective view showing one embodiment of such an outside air introduction structure, FIG. 5 is a cross-sectional view taken along the line -- in FIG. 4, and FIG. 6 is a cross-sectional view showing another embodiment of the present invention. 1... Front window panel, 2... Engine hood, 3... Wiper device, 4... Recess,
17... Notch, 18, 24... Air intake grill.

Claims (1)

[Scope of Claim for Utility Model Registration] A recess in which a wiper device is housed is formed between the lower end of the front window panel and the rear end of the engine hood, and a cowl box is provided below the recess as an outside air intake. In the vehicle, the rear part of the engine hood is inclined upwardly toward the rear of the vehicle across the entire width of the vehicle, and a notch corresponding to the air intake port of the cowl box is provided at the center of the rear end of the inclined engine hood. an air intake grille in which an outside air passage for guiding outside air into the recess is formed on the notch, and an inlet end of the outside air passage is located above the rear inclined surface of the engine hood. On the other hand, the outlet end of the outside air passage, which almost matches the shape of the notch, is located below the sloped surface at the rear of the engine hood, and the outside air introduced into the outside air passage collides with the rear of the outside air passage. An outside air introduction structure for an automobile, characterized in that an inclined wall is formed to guide the outside air in the direction of an exit end.