JPH065961Y2 - Rear structure of automobile hood - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a rear structure of a hood (bonnet) that opens and closes an engine room of an automobile, and in particular, the hot air in the engine room is discharged from the rear part of the hood to the atmosphere to engine. The present invention relates to a structure capable of preventing the occurrence of stalls.

[Conventional technology]

For example, in an automobile equipped with a conshield type wiper, a space for storing the wiper is formed between a rear end portion of a hood that covers the upper part of the engine room and a cowl extending in the vehicle width direction, and the wiper storage space is usually provided in the space. Is configured to accommodate and improve front visibility. As a rear structure of the hood in such a concealed wiper vehicle, there is a conventional fourth structure.
Some are shown in FIG. 5 and FIG. A cowl 21 having a box-shaped closed cross section extending in the vehicle width direction is arranged below a rear end portion 20a of a hood outer 20 of a hood 25 that opens and closes an engine room 30 to form a space portion A.
The outer panel 24 of the cowl 21 is provided with the base portion 22 of the wiper, and the outer panel 24
A windshield 23 is disposed on the upper part of the.

By the way, since the cowl outer panel 24 is formed with an inlet 24a for introducing outside air into the vehicle,
It is necessary to prevent odors and hot air in the engine room 30 from entering the inlet 24a. Further, it is necessary to prevent rainwater and water for car washing from entering the engine room 30 from the space A. Therefore, the cowl outer panel 24 and the hat-shaped cross section disposed on the lower surface of the hood outer 20. Rear end 2 of the hood inner 26
A weather strip 27 is arranged between the space A and the engine room 30 to divide the space A from the engine room 30 (see FIG. 5 (a)). On the other hand, if the space A and the engine room 30 are completely cut off, the engine room 3
There is a risk that hot air will fill the inside of 0 and the temperature will rise, causing engine stall. Therefore, conventionally, in order to prevent the engine stall, the engine room 30
By removing the weather strip 27 in a portion that does not hinder the components even if rainwater or the like enters inside, a communication portion 28 is formed,
The engine room 30 and the space A are communicated with each other to radiate hot air to the outside (see FIG. 5 (b)).

[Problems to be solved by the invention]

However, in the above-mentioned conventional hood rear structure, the possible portion even if rainwater or the like enters the engine room 30, is very limited. Therefore, as shown in FIG. 4, for example, one side end portion in the vehicle width direction. In some cases, only the communication portion 28 can be formed. As a result, there is a problem that the amount of hot air released becomes insufficient and engine stalls easily occur. Here, it is conceivable to form an opening in the hood that directly communicates with the engine room to remove hot air, but in this case, there is a problem that the appearance is deteriorated, and rust is easily generated in the opening. Therefore, it cannot be adopted.

The present invention has been made to solve the above-mentioned conventional problems. While preventing rainwater and the like from entering the engine room, a communication part for removing hot air is formed over a wide area to cause problems such as engine stall. It is an object of the present invention to provide a hood rear structure for an automobile that can reliably eliminate the above problem.

[Means for solving problems]

The inventors of the present invention observed the mounting structure of the hood outer and the hood inner, and found that the outer peripheral edges of both were crimped by hemming, but the inner peripheral edges were joined to prevent deterioration of appearance due to welding marks. I focused on the fact that there are some gaps. That is, if a communication hole is formed in the rear wall of the hood inner at the rear end of the hood, the hot air in the engine room can be discharged to the atmosphere through the communication hole from the gap, and the rear end of the hood inner can be crossed. Since the surface is formed in the shape of a groove, the rainwater that has entered through the communication holes is guided to both sides of the vehicle body and does not enter the engine room. as a result,
The present invention has been made in view of the fact that the communication hole can be formed at any position except the outside air introduction port.

Therefore, in the present invention, the hood inner is attached to the lower surface of the hood outer covering the upper part of the engine room so as to form a substantially closed cross section, and the hood inner is provided between the rear end of the hood inner and the cowl outer panel in which the outside air inlet is formed. In the hood rear structure of an automobile in which the strip is arranged, the hood inner is bulged downward to form a gutter shape extending in the vehicle width direction, and the hood outer of the hood rear end and the upper end of the front wall of the hood inner are formed. While forming a gap between the hood inner, in the portion of the rear wall of the hood inner except the portion facing the outside air introduction port,
It is characterized in that a communication hole for removing hot air is formed.

[Action]

According to the vehicle hood rear structure of the present invention, a gap is formed between the hood outer and the front wall of the hood inner, and the communication hole is formed in a portion of the rear wall of the hood inner that does not face the outside air introduction hole. The hot air in the engine room is discharged to the outside through the communication hole from the gap. Moreover, in this case, even if rainwater or the like enters the hood inner through the communication hole, the rear end portion of the hood inner is formed into a groove-shaped cross section, which leads the rainwater to both sides of the vehicle body. No rainwater will enter the room. As a result, since the communication hole can be formed anywhere except the outside air introduction port, the amount of hot air released can be increased accordingly, and the atmospheric temperature in the engine room can be constantly lowered. The engine stall can be reliably prevented.

Further, the communication hole of the present invention is hidden by the hood, so that it cannot be seen from the outside and the deterioration of the appearance can be avoided.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 are for explaining a hood rear structure in an automobile according to an embodiment of the present invention. In the present embodiment, the case of application to a concealed wiper type automobile will be described as an example.

In the figure, 1 is an automobile to which the hood rear structure of the present embodiment is applied, in which an openable and closable door 3 is arranged in the center of a side panel 2 extending in the vehicle front-rear direction, and the upper end of this side panel 2 is arranged. A side edge of the roof panel 4 is joined between them and an engine room 5 is formed in the front part of the vehicle body. An openable and closable hood 7 covering the upper part of the engine room 5 is disposed above the engine room 5, and the hood 7 is composed of a hood outer 6 and a hood inner 8 disposed on the lower surface of the outer 6. ing.

At the rear end portion 6a of the hood outer 6, the hood inner 8 has a cross-section hat shape extending in the vehicle width direction, and the rear end flange portion 8a of the hood inner 8 of the portion is the rear end peripheral edge of the hood 6. It is sandwiched by 6b by hemming. A gap B is formed between the front end flange portion 8b of the hood inner 8 and the lower surface of the hood 6 in the above portion.
Are formed. Further, below the hood inner 8, a cowl 9 extending in the vehicle width direction and connected to the both side panels 2 is disposed, and between the cowl 9 and the rear end portion 6a of the hood outer 6. Has a space A formed therein. The cowl 9 has a closed cross-section composed of a cowl outer panel 10 and a cowl inner panel 11, and a weather strip 13 is arranged at a rear joint portion 12a of both panels 10 and 11, and the strip 13 is It supports the lower edge of the windshield 14. Further, a base portion 15 of a wiper is attached to the cowl outer panel 10.

A weather strip 16 extending in the vehicle width direction is provided at the front joint portion 12b of the cowl 9, and the upper surface of the strip 16 is in contact with the bottom wall 8c of the hood inner 8. As a result, the space A and the engine room 5 are separated from each other. Further, an outside air introduction port 10a is formed on the left side of the cowl outer panel 10 in the vehicle width direction when viewed from the front of the vehicle, and an air conditioner (not shown) is provided at the introduction port 10a to create an appropriate atmosphere in the vehicle. Are connected.

Then, three communication holes 17 are formed at predetermined intervals on the right side in the vehicle width direction of the rear wall 8d of the hood inner 8 excluding a portion facing the upper outside air introduction port 10a. The engine room 5 and the space A communicate with each other.

Next, the function and effect of this embodiment will be described.

In this embodiment, the hot air in the engine room 5 passes through the gap B between the hood outer 6 and the front wall 8e of the hood inner 8 and is discharged outward from the communication hole 17 of the rear wall 8d through the space A. In addition, a part of rainwater and water used for washing the car are
From the inside to the inside of the hood inner 8 through the communication hole 17, but this is guided to both sides of the vehicle body, flows out of the vehicle, and does not enter the engine room 5. Further, unless the communication hole 17 is formed in the outside air introduction port 10a portion, the odor and hot air in the engine room 5 will not enter the vehicle interior.

As described above, according to the structure of this embodiment, the gap B is formed between the hood outer 6 and the front end flange portion 8b of the hood inner 8, and the outside air introduction port 10a of the rear wall 8d of the hood inner 8 is formed.
Since the three communication holes 17 are formed in the portion excluding the portion opposed to, the range of formation of the communication holes 17 can be expanded, and the amount of hot air released can be increased by that amount, so that engine stall can be prevented from occurring.

Further, in the present embodiment, the hot air is discharged along the back of the ceiling of the hood outer 6, that is, the specific gravity is small, and the property of the hot air that easily rises is used effectively, and the structure is such that the hot air is easily released. The efficiency can be improved.

Further, since the communication hole 17 is hidden under the hood outer 6 and cannot be seen from the outside, the appearance is not deteriorated.

In the above embodiment, the outside air introduction port 10a is formed on the left side of the center of the cowl outer panel 10, and the communication hole 1 is formed on the right side.
Although the case where 7 is formed has been described as an example, the present invention is not limited to these arrangement relationships, and for example, the introduction port and the communication hole may be formed alternately with a predetermined gap.

Further, in the above-mentioned embodiment, the concealed wiper type automobile is taken as an example, but the present invention can be applied to other automobiles.

[Effect of device]

As described above, according to the vehicle hood rear structure of the present invention, a gap is formed between the hood outer and the front wall of the rear end of the gutter-shaped hood inner disposed on the lower surface of the hood, Since a communication hole is formed in a portion of the rear wall of the hood inner other than a portion facing the outside air introduction port, it is possible to form a hot air vent hole in the engine room in a wide range while preventing water from entering the engine room. The effect is that the problem of engine stall can be reliably prevented.

[Brief description of drawings]

1 to 3 are views for explaining a hood rear structure in an automobile according to an embodiment of the present invention.
The drawing is a sectional view taken along the line I-I of FIG. 2, FIG. 2 is its plan view, and FIG.
FIG. 4 is a perspective view of an automobile to which the structure of this embodiment is applied, FIG. 4 is a plan view for explaining a conventional hood rear structure, and FIG.
Figures (a) and (b) are cross-sectional views taken along line Va-Va of FIG. 4, respectively.
It is a b-Vb line sectional view. In the figure, 1 is an automobile, 5 is an engine room, 6 is a hood outer, 6a is a rear end, 7 is a hood, 8 is a hood inner, 8b is a front end flange (upper end of front wall), 8c is a bottom wall (hood inner). Rear end portion), 8d is a rear wall, 10 is a cowl outer panel, 10a is an outside air inlet, 16 is a weather strip, 17 is a communication hole, and B is a gap.

Claims (1)

[Scope of utility model registration request] 1. A hood inner is attached to a lower surface of a hood outer that covers an upper opening of an engine room so as to be openable and closable, and a rear end portion of the hood inner and an outside air introduction port are formed. In a hood rear structure of an automobile in which a weather strip is disposed between the cowl outer panel and the cowl outer panel, the hood inner is bulged downward to form a gutter shape extending in the vehicle width direction, and the hood outer and the front wall of the hood inner are An automobile characterized by forming a gap between the upper end and a communication hole that communicates the engine room with the outside air in a portion of the rear wall of the hood inner except a portion facing the outside air introduction port. Hood rear structure.