JP3879652B2 - Wheelhouse structure of automobile - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a wheel house part of an automobile, and more particularly to a wheel house part structure configured by bonding an outer plate and an inner plate with an adhesive.
[0002]
[Prior art]
Conventionally, as shown in the general cross-sectional view of FIG. 6, the structure of the wheel house part of an automobile is formed by bending the lower end edges of the side outer panel 100 and the side inner panel 200 to the inside of the vehicle body, respectively, so that an inward flange 120 and a bent flange 220 are formed. In general, the foam sealer 600 is filled in the vicinity of the lower edges of the side outer panel 100 and the side inner panel 200, and the flanges 120 and 220 are overlapped and joined by spot welding So.
In this structure, since a welding allowance for spot welding is required at the flange portion, it is necessary to increase the length of the flange toward the inside of the vehicle body.
Further, in this structure, the inner sealer 700 is easily visible from the bent portion in a side view of the automobile indicated by the line of sight C, and the appearance is not good.
[0003]
Furthermore, in recent years, especially in compact cars with a relatively small vehicle body, wide tires have been adopted without changing the vehicle body specifications to appeal to the profound and sporty feeling of the vehicle, and the gap between the wheel house and the tire. It has come to be done to make the appearance as small as possible.
In order to adopt a wide tire as described above, or to reduce the gap between the wheel house part and the tire, the lower end edge of the wheel house part of the outer plate and inner plate of the car body is bent inside the car body on the inner side of the car body. It is necessary to make the length to go as small as possible.
Therefore, in many cases, an adhesive structure using a structural adhesive is employed instead of spot welding to join the outer plate and the inner plate at the flange portion. As an example of this, “a structure around the wheel of an automobile body” described in JP-A-2002-104245 (hereinafter referred to as “Patent Document 1”) has been proposed.
[0004]
As shown in FIG. 7 (excerpt from FIG. 5 of Patent Document 1), the technique described in Patent Document 1 forms an inward flange 13 by bending the lower end edge of the side outer panel 9 inwardly. A structure around the wheel of an automobile body in which the outer edge 11a of the wheel house panel 11 is positioned in the vicinity of the upper side of the direction flange 13, and a slit 25 is formed therebetween, and the slit 25 is filled with an adhesive 26 and joined. It is. (See (0028) of Patent Document 1)
That is, a slit 25 is formed between the lower end edge 9 a of the side outer panel 9 and the outer end edge 11 a of the wheel house panel 11, and the adhesive 26 filled in the slit 25 causes the lower end edge 9 a of the side outer panel 9 to Since the outer edge 11a of the wheel house panel 11 is coupled to each other, the inward flange of the side outer panel is compared with the conventional structure in which the inward flange of the side outer panel and the outer edge of the wheel house panel are spot welded. The width dimension can be further reduced, and the protrusion dimension of the inward flange toward the wheel can be reduced accordingly. (See (0028) and (0050) of Patent Document 1)
[0005]
[Problems to be solved by the invention]
However, in the structure described in Patent Document 1, the resinized adhesive melts when heat is applied to the cured adhesive layer at the time of repair when the side outer panel is damaged to the extent that replacement is not required. Since there is a risk that the adhesive force may be reduced due to the brittleness or brittleness, there is a problem that it is difficult to guarantee the strength of the adhesion between the side outer panel and the wheel house panel.
For this reason, even if the side outer panel is slightly damaged, it is necessary to perform a large-scale repair by replacing the side outer panel and newly filling and adhering the adhesive. .
In addition, with the bonding structure with this adhesive, the length of the inward flange toward the inside of the vehicle body is made slightly longer, and spot welding is also performed at this flange portion during repair, but with the conventional inward flange structure, When the adhesive has entered between the flanges, when spot welding is performed, there is a risk that the cured and resinized adhesive may explode due to welding heat, so welding cannot be performed. There is.
[0006]
Accordingly, an object of the present invention is to provide a structure of a wheel house part capable of ensuring strength even when repairing a vehicle body, in order to solve such a problem.
[0007]
[Means for Solving the Problems]
The wheel house part structure of an automobile according to the present invention is a wheel house part structure of a vehicle body on which a wheel of the automobile is located, the outer plate of the vehicle body formed by bending the lower edge toward the inside of the vehicle body to form an inward flange, and the lower edge An inner plate of the vehicle body that is bent inwardly of the vehicle body to form a bent flange, the bent flange of the inner plate is overlaid on the inner surface of the inward flange of the outer plate, In an automobile wheel house structure in which an adhesive is filled between and bonded to the vicinity of the lower end edge of the inner plate, in a bent corner portion between the lower end edge of the outer plate and the inward flange. , Projecting downward, forming a groove that opens to the inner plate side so that the adhesive does not enter the overlapping portion of the bent flange of the inner plate and the inner surface of the inward flange of the outer plate It is characterized by that.
Therefore, when the adhesive is filled between the outer plate and the inner plate, the lower end of the adhesive stops in the groove and does not enter the overlapped portion of the flange. It is possible to ensure the strength at the time of repair.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, one embodiment of a wheel house structure according to the present invention will be described below with reference to the drawings. The wheel house part structure of the present embodiment is provided in the wheel house part of the rear wheel of the van type automobile.
Here, FIG. 1 is a side view of an automobile adopting the wheel house structure according to the present invention, and FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
In addition, the code | symbol used by description of patent document 1 and the code | symbol used by description of this Embodiment are irrelevant.
[0009]
(Constitution)
The structure of the wheel house part of this Embodiment is demonstrated. As shown in FIG. 2, the structure of the wheel house portion 2 of the vehicle body to which the rear wheel of the automobile 1 shown in FIG. 1 is attached is joined to the side outer panel 10 as an outer plate and the side outer panel 10. A side inner panel 20 constituting the ceiling part of the wheel house part 2 as an inner plate, a wheel house inner panel 30 further constituting a ceiling part of the wheel house part 2 inside the side inner panel 20, and a lower end on the side The inner panel 20 includes a reinforcing panel 18 attached to a surface of the inner panel 20 facing the side outer panel 10 and disposed substantially parallel to the side outer panel 10.
[0010]
Then, as shown in the enlarged view of FIG. 3, the connecting portion of the side outer panel 10 and the side inner panel 20 indicated by the circled portion A in FIG. 2 is bent into the inner side of the vehicle body by bending the lower edge 11 of the side outer panel 10. A direction flange 12 is formed, and a groove 15 that opens to the side inner panel 20 side is formed by projecting a bent corner portion of the lower edge 11 and the inward flange 12 downward in a semicircular shape.
On the other hand, the lower edge 21 of the side inner panel 20 is bent to the inside of the vehicle body to form a bent flange 22, and the bent flange 22 is overlapped with the inner surface of the inward flange 12 of the side outer panel 10. A structural adhesive (hereinafter simply referred to as “adhesive”) 60 is filled and bonded between the inner surface in the vicinity of the lower edge 11 and the vicinity of the lower edge 21 of the side inner panel 20.
[0011]
The length of the inward flange 12 of the side outer panel 10 toward the inner side of the vehicle body is slightly shorter than the length of the bent flange 22 of the side inner panel 20 toward the inner side of the vehicle body. As a guide for filling the thermosetting sealer 70 that seals at the overlapping portion.
[0012]
(Function)
Next, the operation of the wheel house structure according to this embodiment will be described. In order to assemble the side block of the vehicle body, first, the subassembly on which the side outer panel 10 and the reinforcing panel 18 are temporarily attached is placed on a jig with the outside of the side outer panel 10 facing down, as shown in FIG. In addition, the adhesive 60 is applied in a string shape along the lower end edge 11 in the vicinity of the lower end edge 11 of the side outer panel 10.
At the same time, the adhesive 60 is similarly applied to the lower end of the reinforcing panel 18 in a string shape (see FIG. 3).
[0013]
In this state, the side inner panel 20 is placed on the sub-assembly of the side outer panel 10 placed on the jig, and the bent flange 22 of the side inner panel 20 is overlapped with the inward flange 12 of the side outer panel 10. The applied adhesive 60 is pressed so as to be crushed and fixed by a clamp or the like (not shown).
Then, as shown in FIG. 3, the adhesive 60 is crushed and spreads between the side outer panel 10 and the side inner panel 20, but its lower end stays in the groove 15 and is bent with the inward flange 12. It does not enter between the flanges 22.
[0014]
Therefore, as shown in FIG. 5, when the side outer panel 10 is repaired, the side outer panel 10 and the side inner panel 20 may be inwardly welded even if spot welding is performed using a specially reduced tip T for repair. Since the adhesive 60 does not enter between the flange 12 and the bent flange 22, it can be welded without an explosion, and the strength of the vehicle body after repair can be ensured.
[0015]
As described above, the groove portion 15 protrudes downward at the bent corner portion between the lower end edge 11 of the side outer panel 10 and the inward flange 12 bent from the lower end edge 11 toward the inside of the vehicle body, and opens to the side inner panel 20 side. Therefore, the adhesive 60 can be prevented from entering between the inward flange 12 and the bent flange 22, and the explosion of the adhesive 60 by spot welding during repair of the side outer panel 10 can be prevented. .
Moreover, since the groove part 15 protrudes in the hollow part of the wheel house part 2, the seal | sticker 70 apply | coated to both the flanges 12 and 22 can be hidden as shown by the visual line B of FIG. 3, and the appearance of a vehicle body improves.
[0016]
In addition, this invention is not limited to the thing of the said embodiment, A various change is possible in the range which does not deviate from the meaning.
For example, in the above-described embodiment, the groove portion has an arc shape in cross section. However, the shape is not limited to this, and a V shape or a concave shape is also possible.
Also, the inward flange is narrow and the bent flange is wide, but conversely, the inward flange is wide and the bent flange is narrow and the sealer is applied to the plate end of the bent flange. It may be.
[0017]
【The invention's effect】
The present invention relates to a wheel house part structure of a vehicle body on which a vehicle wheel is located, wherein the outer plate of the vehicle body in which a lower end edge is bent inwardly to form an inward flange, and the lower end edge is bent inwardly of the vehicle body. The inner plate of the vehicle body on which the flange is formed is overlaid with the inner flange of the inner plate on the inner surface of the inward flange of the outer plate, and between the inner surface near the lower edge of the outer plate and the lower edge of the inner plate. In a vehicle wheel house structure that is filled with an adhesive and bonded, a groove that protrudes downward and opens toward the inner plate is formed at the bent corner portion of the lower edge of the outer plate and the inward flange. Because it is formed, the filled adhesive stays in the groove, so it can be joined without entering between the inward flange and the bent flange, and even if the inward flange and the bent flange are spot welded when repairing the outer plate Without the adhesive exploding It is possible to contact, it becomes possible to secure the strength after repair.
[Brief description of the drawings]
FIG. 1 is a side view of an automobile employing a wheel house structure according to an embodiment of the present invention.
FIG. 2 is a sectional view of a wheel house structure according to an embodiment of the present invention.
FIG. 3 is an enlarged view of a part A in FIG. 2;
FIG. 4 is a cross-sectional view showing an assembly procedure of the wheel house structure according to one embodiment of the present invention.
FIG. 5 is a sectional view showing a state of spot welding at the time of repairing the wheel house structure according to the embodiment of the present invention.
FIG. 6 is a cross-sectional view showing an example of a conventional wheel house structure.
FIG. 7 is an excerpt from FIG.
[Explanation of symbols]
1 Car body 2 Wheel house 10 Side outer panel (outer plate)
11 Lower edge 12 Inward flange 15 Groove 20 Side inner panel (inner plate)
21 Lower edge 22 Bent flange 60 Adhesive (for structure)
70 Sheila

Claims (1)

It is a wheel house part structure of a vehicle body where the wheels of an automobile are located, and the outer plate of the vehicle body in which the lower end edge is bent inwardly to form an inward flange and the lower end edge is bent inwardly of the vehicle body to form a bent flange. The inner plate of the vehicle body is overlapped with the inner flange of the inner plate and the inner flange of the outer plate is overlapped with the inner surface of the outer plate and between the inner surface near the lower edge of the outer plate and the vicinity of the lower edge of the inner plate. In an automobile wheel house structure that is filled with adhesive and bonded.
At the bent corner portion of the lower edge of the outer plate and the inward flange, a groove projecting downward and opening on the inner plate side is formed , the bent flange of the inner plate and the outer plate An automobile wheel house structure characterized in that an adhesive does not enter an overlapping portion with an inner surface of an inward flange .

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