JPS6036521Y2 - Joint structure between automobile front skirt and front fender - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in the joining structure between a front skirt and a front fender in an automobile.

Conventionally, as shown in Figs. 1 to 4, the joining structure between the front skirt and front fender of this type of automobile has been such that there is a front part a□ at the lower front of the vehicle body, and a rear part continuous to the upper end of the front part a1. A front skirt a having an extended upper surface part a2 is attached, and a side edge part a of the front skirt a is attached.
3 to the side edge of the front fender b formed in a shape that overlaps the side edge a3, and both side edges $35
It is known that bl is joined by fastening a bolt C, and a sealant d is applied to the end of the joint.

However, in this conventional joint structure, when a relative displacement occurs between the front skirt a and the front fender b due to external force such as torsion or vibration, cracks occur in the sealant d at the joint end, which causes rust. Therefore, there is a drawback that the appearance of the product is spoiled due to the occurrence of rust.

In particular, the joint part (second
Rust is most likely to occur in area A in the figure.

This is because, in the joint of this upper surface part a2, a force in the opening direction will act on the joint end in response to a load in the vertical direction, and a force in the opening direction will act on the joint end in response to a load in the left and right direction. This is because force acts in a direction that slides and shears the sealant d.

However, in that case, if rust only occurs at the joint of the upper surface movement 2, it will not cause any problem in terms of appearance, as it will not be visible from the outside by installing Basiper e, as shown by the imaginary line in Figure 4. As the rust progresses, rust sweat (brown water containing iron oxide) flows out onto the front surface of the front skirt a, resulting in a significant loss of appearance.

In addition, Fig. 5 and 6 show the joint structure of the outer panel of an automobile.
As shown in the figure, a flange part gtt& is formed at the joint part of each member to be joined (for example, nose panel f and front fender b'), and a stepped part is formed in one flange part g2, and bolts i are fastened. , therefore, there are grooves j at regular intervals in the joint.
It has been proposed to prevent the deterioration of the appearance due to assembly errors and the occurrence of rust due to paint cracking by forming a Since it is necessary to form a flange portion at a substantially right angle over the entirety of both members and to form a stepped portion, there is a drawback that the press working process is increased and the cost is increased. As mentioned above, rust is likely to occur only partially in the joints, so there is no need to consider rust prevention for the entire joint, and this proposed structure cannot be applied as is.

The present invention has been developed in view of the above points.In the joint structure of the front skirt and front fender of an automobile, the front skirt and front fender are overlapped one on top of the other as in the past, and the joint between the two is designed to avoid corrosion. By adopting a structure in which both parts are bolted together at the joint in the front part of the front skirt, where there are few problems, and by having a gap only in the part where rust is likely to occur, that is, the joint in the upper surface of the front skirt, there is no increase in cost. The present invention provides a joint structure between a front skirt and a front fender of an automobile, which effectively prevents the occurrence of rust due to seal cracking at the joint on the upper surface of the front skirt and improves the appearance. be.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

7 to 10, 1 is a front skirt attached to the lower front of the vehicle body, 2 is a front fender that constitutes the front side of the vehicle body, and the front skirt 1
has a front part 3, an upper part 4 extending rearward continuously from the upper end of the front part 3, and a lower part 5 extending rearward continuously from the lower end of the front part 3, while a front side edge part 7 of the front fender 2 are formed in a shape that overlaps the side edges of the front skirt 1.

That is, the side edge portion 7 of the front fender 2 has a front portion 7a, an upper surface portion 7b, and a lower surface portion 7c corresponding to the front portion 6a, the upper surface portion 6b, and the lower surface portion 6C in the side edge portion 6 of the front skirt 1, The both side edges 6 and 7 are overlapped and joined with the front fender side edge 7 on the front side and the front skirt side edge 6 on the back side.

In the joint part B, the upper surface side edge 6b of the front skirt side edge 6 is formed into a concave shape with a step 8.
There is a gap 9 between the upper surface side edge 6b and the upper surface side edge 7b of the front fender side edge 7 corresponding to the upper surface side edge 6b.
It is arranged so that it has a

The gap amount t of this gap 9 is determined by the side edge 6 of the rain upper surface due to vibration etc.
In order to prevent b and 7b from contacting each other, the distance is set to 2 to 4 mm, preferably about 3 rrrIn.

Further, the front skirt 1 and the front fender 2 are connected to each other in the vicinity of the front skirt upper surface 4 at the overlapping area between the front side edge 6a of the front skirt side edge 6 and the front side edge 7a of the front fender side edge 7. Both side edges 6 of
7 is fastened with a fastening bolt 10 and a nut 11 and is firmly joined.

Further, at the overlapping portion of the lower surface side edge 6c of the front skirt side edge 6 and the lower surface side edge 7c of the front fender side edge 7, the fastening bolts 12 and nuts 13 are inserted as far back as possible so as not to be visible from the outside. It is fastened and joined by.

Reference numeral 14 denotes a sealant that covers the front and bottom ends of the joint B.

In the drawings, in order to make the surface of the joint 8 (that is, the surface of the front fender 2) flush with the surface of the front skirt 1, the upper side edge 6b of the front skirt side edge 6 is
The other portions, that is, the front side edge 6a and the lower side edge 6c, are recessed in a step-like manner by an amount corresponding to the plate thickness of the front fender 2.

Therefore, in the above embodiment, at the joint B where the front skirt side edge 6 and the front fender side edge 7 overlap, the upper surface side edge 6b, ? Gap 9 between b
are provided, and both are connected to the front side edge portion 6a, ? By fastening with the fastening members (fastening bolts 10 and nuts 11) at a position close to the side edges 6b, 7b of the upper surface in FIG. The paint is evenly applied to the upper side edge 6b,
7b can have a structure that does not require the sealant 14 for rust prevention, and the upper side edges 6b and 7b are sufficiently spaced apart so that they do not come into contact with each other even if a large relative displacement occurs due to external force. Since they are provided as a single layer, there are no problems such as damage caused by contact with each other, loss of the paint film due to this damage, and occurrence of rust from areas where the paint film is missing.

Therefore, the occurrence of rust (particularly from the top surface) due to cracking of the sealant 14 provided at the end of the joint B, which was observed in the conventional structure, is eliminated.

Moreover, since the gap 9 can be made invisible from the outside by attaching a bumper, the appearance does not deteriorate.

In the above embodiment, a sealant was provided to cover the front and lower surfaces of the joint B, but the gap 9 not only suppresses the occurrence of rust on the upper surface of the joint B, but also prevents the paint from forming on the joint B. Since it also has the effect of making it easier to reach the front surface of the sealant, the sealant 14 can be omitted in some cases.

The above-mentioned embodiment is based on the case where the upper surface side edge 6b of the front skirt side edge 6 is recessed through the stepped portion 8 and a gap 9 is provided between it and the front fender upper surface side edge 7b. As described above, a gap may be formed between the side edges of the rain top surface by bulging the side edges of the upper surface of the front fender side edge with a step, or a step may be provided on both sides. Alternatively, a gap may be formed.

That is, in the present invention, a front skirt having a front part and an upper part extending rearward from above the front part is attached to the lower front part of the vehicle body, and the front skirt has a shape that overlaps the side edges of the front skirt and the side edges. A joint structure of an automobile front skirt and a front fender formed by overlapping and joining the side edges of JA-shaped front fenders, in which the front side edge of the front skirt and the side edge of the rear face of the front fender overlap. The front skirt and the front fender are fastened together by a fastening member near the top surface of the front skirt, and there is a gap between the side edge of the top surface of the front skirt and the side edge of the top surface of the front fender corresponding to the side edge. It is characterized by being arranged as follows.

Therefore, according to the present invention, it is possible to reduce the occurrence of seal cracking and rust, thereby improving the appearance of the product.In addition, since gaps are provided only in the minimum necessary areas, costs are reduced. It is possible to provide a joining structure between a front skirt and a front fender of an automobile that has an excellent appearance without having to do anything.

Moreover, it also has the advantage that sealant can be omitted due to improved coverage of the coating due to the gaps.

[Brief explanation of drawings]

Figures 1 to 4 show a conventional example, with Figure 1 being a perspective view of the front of the vehicle, Figure 2 being an enlarged perspective view of the portion circled in Figure 1, and Figures 3 and 4. are respectively ■− in Figure 2.
5 and 6 show other conventional examples, FIG. 5 is a schematic perspective view, and FIG. 6 is a sectional view taken along the line ■-■ of FIG. Yes, Figures 7 to 10
The drawings illustrate an embodiment of the present invention, and FIG. 7 is an enlarged perspective view of the main part, and FIGS. 8, 9, and 10 are the ■-■ line, IX-IX line, and It is an X-ray cross-sectional view. 1...Front skirt, 2...Front fender, 3...Front part, 4...
Upper surface part, 5...Lower surface part, 6...Front skirt side edge, 6a...Front side edge, 6
b...Top side edge, 6C...Bottom side edge, 7...Front fender side edge, 7a
...Front side edge, 7b...Top side edge, 7C...Bottom side edge, 8...
Stepped portion, 9... Gap, 10.12... Fastening bolt, 11.13... Fastening nut, 14.
...Sealant, B...Joint part.

Claims (1)

[Scope of utility model registration request] A front skirt having a front part and an upper part extending rearward from above the front part is attached to the lower front part of the vehicle body, and the side edge of the front skirt and the side of a front fender formed in a shape that overlaps the side edge part. A joint structure between a front skirt and a front fender of an automobile, in which the front skirt and front fender of an automobile are joined together by overlapping the edges, and the area is near the upper surface of the front skirt at the overlapping part of the front side edge of the front skirt and the side edge of the rear surface of the front fender. The front skirt and the front fender are fastened together by a fastening member, and a side edge of the upper surface of the front skirt and a side edge of the upper surface of the front fender corresponding to the side edge are arranged with a gap. A joint structure between a front skirt and a front fender of an automobile, which is characterized by: