JP3365036B2 - Vehicle front body structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front body structure forming a side portion of an engine room of a vehicle.

[0002]

2. Description of the Related Art The engine room of many vehicles has a cowl and a dash panel on the rear side, a radiator support panel on the front side, and a fender apron on both sides. Among them, the body structure of the fender apron portion has a conventional structure as shown in FIGS. 5 and 6, for example. That is, the apron member 102 is fixed to the inner surface of the upper part of the front apron side member 101, and the fender apron 104 having the upper portion 103 having a closed cross section is configured. The upper surface formed by the apron member 102 of the upper portion 103 is a fender mounting surface 105.
And a fender panel 106 formed on the edge of the fender panel 106 on the fender mounting surface 105.
It is attached by bonding and fixing 7. The design surface of the fender panel 106 forms a profile continuous with the design surface of the hood panel 108 that covers the upper part of the engine room. A radiator support panel 109 is fixedly connected to the front part of the fender apron 104, and a cowl 110 is fixedly connected to the rear part thereof.

Of these, the fender panel 106 and the hood panel 108 are members that form the outer plate surface that is the design surface, and the fender apron 104, the radiator support panel 109, and the cowl 110 are members that form the inner plate surface. Is. Among vehicle models of similar designs, the body structure forming the inner plate surface is made as common as possible, and only the members forming the outer plate surface are constructed according to the vehicle model. Actually, the body structure forming the inner plate surface is common between the vehicle models in which the rising dimension of the rising portion 111 formed on the mounting side of the fender panel 106 is high and the vehicle models in which the rising dimension is low.

However, increasing the rising dimension of the rising portion 111 of the fender panel 106 increases the difficulty in press-molding the fender panel 106, so the difference in the rising dimension of the rising portion 111 is within 10 mm to 15 mm, for example. The body structure is only shared among the car models. That is, the hood panel 108 cannot be applied to a vehicle model having a considerably high height or a vehicle model having a wide overall width by the body structure having the inner plate surface as described above.
It was not possible to use a low-height car with a narrow overall width.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems associated with the commonization of the conventional body structure. The problems to be solved are the difference in overall width and the height of the hood panel. It is to obtain a front body structure of a vehicle that can be shared, that is, can be shared between vehicle types having a relatively large difference in height, and further to improve the rigidity of the front body structure.

[0006]

In order to achieve the above object, the invention of a vehicle front body structure according to claim 1 is
Mounting flange through a riser formed vertically inside
A front body structure of a vehicle, which comprises a fender apron having an upper part of a closed cross section with an apron member fixed to an upper inner surface of a front apron side panel for attaching a fender panel provided with the fender apron. The upper surface of the upper part of the apron member configured as the apron member is configured as a first fender mounting surface for joining and fixing a mounting flange formed at the end of the rising portion of the fender panel, and the apron member is also provided. The upper edge of the first fender mounting surface is raised above the first fender mounting surface and bent outward so that the portion located above and outside the first fender mounting surface is permanently installed as the second fender mounting surface.
This is the first fender that is permanently installed.
The fender pad is attached to either the attachment surface or the second fender attachment surface.
The mounting flange is joined according to the mounting height position of the flannel
A means characterized by being fixedly configured is adopted.

In order to achieve the above object, the invention according to claim 2 is characterized in that the second fender mounting surface in the means according to claim 1 is doubled by joining the upper edge of the front apron side panel and the upper edge of the apron member. Structured as a structure
The means characterized by that is adopted.

[0008]

In the means according to claim 1, the first fender mounting surface has a height difference and a widthwise position difference between the first fender mounting surface and the second fender mounting surface. A fender panel with less rising can be attached to the fender panel. By mounting the fender panel on the second fender mounting surface, a wide fender panel can be obtained without increasing the standing dimension of the rising part. You can also do it.

According to the second aspect of the invention, in addition to the action of the first aspect, the second fender mounting surface has a double structure by joining the upper edge of the front apron side panel and the upper edge of the apron member.

[0010]

【Example】

Example 1 An example of the present invention will be described below with reference to FIGS. FIG. 1 shows a front body structure of a vehicle of this embodiment in which a right side portion of a portion defining left and right of the engine room 1 is shown from the engine room 1 side. That is, the apron member 3 is fixed to the inner surface of the upper portion of the front apron side panel 2 to form a fender apron 5 having an upper portion 4 with a closed cross section as shown in FIG. The upper surface of the upper part 4 of the fender apron 5 formed by the apron member 3 has a rising part 7 of the fender panel 6.
The first fender mounting surface 9 for joining and fixing the mounting flange 8 formed on the first side is configured to be a substantially horizontal surface. Further, the upper end edge of the apron member 3 is raised above the joint with the front apron side panel 2, and the free end edge is bent outward so that it is located above the first fender mounting surface 9 and outside. The second fender mounting surface 10 is formed as a substantially horizontal surface.

As shown in FIG. 2, the fender panel 6 has a first mounting surface 9 or a second mounting surface 9 of the fender apron 5 formed by a mounting flange 8 formed on an edge of a rising portion 7 of the fender panel 6.
One of the fender mounting surfaces 10 is used for joining and fixing. The design side of the fender panel 6 is the engine room 1.
Is formed in a profile that is continuous with the design surface of the hood panel 11 that covers the above. The Fender Apron 5 has a radiator support panel 12 in the front and a cowl 1 in the rear.
3 are connected and fixed. Among these, the fender panel 6 and the hood panel 11 are members that form an outer plate surface that is a design surface, and the fender apron 5, the radiator support panel 12, the cowl 13, and the like are members that form an inner plate surface.

[0012] Among vehicle models of similar designs, the body structure forming the inner plate surface is made as common as possible, and only the members forming the outer plate surface are structured according to the vehicle model, so that the cost can be reduced. In the front body structure of this embodiment,
Since the height difference and the position difference in the width direction are set between the first fender mounting surface 9 and the second fender mounting surface 10 of the fender apron 5, if the first fender mounting surface 9 is used,
It is possible to attach the fender panel 6 having a small rise dimension of the rising portion 7 and which can be easily press-formed, and by using the second fender mounting surface 10, a high fender panel 6 can be obtained without increasing the rising dimension of the rising portion 7. Can be done (Fig. 2
See the fender panel shown in solid and dashed lines. That is, the body structure that forms the outer plate surface can be shared between vehicle models having significantly different heights of the fender panel 6 without increasing the difficulty in forming the fender panel 6.

If the first fender mounting surface 9 is used,
The hood panel 11 has a narrow design and has a narrow design.
If the fender mounting surface 10 is used, the hood panel 11 has a wide width. That is, the body structure forming the outer plate surface can be shared even between vehicle models having different overall widths. When the vehicle width is the same and the height of the fender panel 6 is different, as shown in FIG. 3, the mounting flange 8 of the fender panel 6 of the vehicle type having the low fender panel 6 is formed on the engine room 1 side. Then, the fender panel 6 is mounted on the first fender mounting surface 9 (see the fender panel 6 in phantom in FIG. 3), and the mounting flange 8 of the fender panel 6 of a vehicle model having a high height is formed on the side opposite to the engine room. Then, it may be mounted on the second fender mounting surface 10 (see the solid line fender panel 6 in FIG. 3).

Embodiment 2 FIG. 4 is a sectional view of the essential portion showing another embodiment of the present invention.
The front body structure of the second embodiment is also basically the same as that of the first embodiment. Therefore, the description will be given with reference to the drawings of the first embodiment, and the same configurations as those of the first embodiment will be denoted by the same reference numerals as those of the first embodiment and the description thereof will be omitted.

In the front body structure of the second embodiment, the upper edge of the front apron side panel 2 is extended to the lower portion of the second fender mounting surface 10 shown in the first embodiment,
The apron member 3 is joined to the upper edge of the apron member 3 to form the double structure 14. First fender mounting surface 9
Since the is formed on the upper portion 4 having a closed cross section, sufficient rigidity can be obtained. Although the rigidity of the second fender attachment surface 10 may be insufficient only with the apron member 3 as in the first embodiment, the second fender can be easily provided by using the double structure 14 as in the second embodiment. The rigidity of the mounting surface 10 can be increased. Since the other functions are the same as those of the first embodiment, the description thereof will be omitted.

[0016]

As is apparent from the above description of the embodiments, according to the invention of claim 1, there is a difference in height and a difference in position in the width direction between the first fender mounting surface and the second fender mounting surface. Since it is set, a fender panel with less rising can be attached to the first fender mounting surface, and if the fender panel is mounted to the second fender mounting surface, the standing dimension of the rising portion need not be increased. It can be a high fender panel or a wide design, and a front body structure of a vehicle that can be shared even among vehicles with different widths and relatively large differences in hood panel is obtained. .

According to the invention of claim 2, in addition to the effect of claim 1, the second fender mounting surface has a double structure by joining the upper edge of the front apron side panel and the upper edge of the apron member. The second fender mounting surface has high rigidity.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a front body structure as one embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the function of the front body structure according to a cross section taken along the line AA of FIG.

FIG. 3 is a sectional view showing a function of the front body structure by a section taken along line AA of FIG.

FIG. 4 is a sectional view showing a front body structure of another embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional front body structure.

6 is a cross-sectional view taken along the line BB of FIG.

[Explanation of symbols]

2 Front apron side panel 3 apron members 4 Upper part 5 Fender Apron 6 Fender panel 7 Rising part 8 mounting flange 9 First fender mounting surface 10 Second fender mounting surface 14 double structure

Claims (2)

(57) [Claims] 1. A rising portion formed vertically inside
The fender panel with a mounting flange
For this purpose, a front body structure of a vehicle, in which an apron member is fixed to an inner surface of an upper portion of a front apron side panel to form a fender apron having an upper portion with a closed cross section, and the apron member in the upper portion of the fender apron is The configured upper surface is configured as a first fender mounting surface for joining and fixing a mounting flange formed at the end of the rising portion of the fender panel, and the upper edge of the apron member is formed from the first fender mounting surface. the a portion up to the upper and located outside the upper than the first fender mounting surface out bent outward, and a configuration in which permanent as the second fender mounting surface, which is the permanent
Either the first fender mounting surface or the second fender mounting surface
Installation of the crab fender panel depending on the installation height position
A front body structure for a vehicle, which is configured by joining and fixing flanges . 2. The front body structure for a vehicle according to claim 1, wherein the second fender mounting surface is constructed as a double structure by joining an upper edge of a front apron side panel and an upper edge of an apron member. The front body structure of the vehicle is characterized by: