JPH0717433A - Combination construction of wheel house outer for automobile - Google Patents

Abstract

PURPOSE:To provide a combination construction of a wheel house outer in which the retreat quantity of a spot flange part is small. CONSTITUTION:In this combination construction of a wheel house outer for automobile, a rear fender 100 having a bent part 10 on the inside in the direction of a car interior in which the extreme end part of a full bumper is arranged, and the wheel house outer are combined together containing the bent part 101 through spot flange parts 106/4, 107/5. Side edge parts 3b, 3g, 3c continued to the spot flange parts 4, 5 and being along the side form of the rear fender 100 containing the bent part 101 are formed on the wheel house outer, and the rear fender containing the bent part 101 and the side edge parts 3b, 3g, 3c of the wheel house outer are combined together in plane through a metal seal (a) continued from the spot flange parts 106/4, 107/5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a wheel house outer for an automobile to a rear fender having a bent portion in which a tip portion of a full bumper is arranged.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a vehicle is often equipped with a full bumper A for the purpose of imparting a sense of luxury. At this time, the tip A of the full bumper A
A portion of the rear fender 100 in which ₁ is arranged is bent inward in an L-shape to form a bent portion 101. The bent portion 101 is usually provided with a ventilation drafter 102.

A wheel house outer 103 (see FIG. 8) is joined to the inside of the rear fender 100, and a wheel house inner 104 (see FIG. 10) is joined to the wheel house outer 103 to form a wheel house. .

As shown in FIG. 7, the rear fender 100 has a bent portion 101 formed at the lower end of a standing wall 105,
The upright wall 105 and the vertical wall 101b of the bent portion 101 are bent at a right angle inward in the vehicle width direction, and are bent so as to match the degree of curvature of the wheel house outer 103 in the front-rear direction so that flange portions 106 and 107 are formed. Formed and configured. At this time, the flange portion 107 is the flange portion 106.
It is provided at a position retracted from D to D.

On the other hand, the wheel house outer 103 is shown in FIG.
As shown in FIG. 3, a plate body having a wide portion and a narrow portion is bent in the front-rear direction of the vehicle body and is gently bent in the vehicle width direction, and a body 103a is erected along one side edge of the body 103a. The formed flange portion 103b and the main body 103
It is formed from flange portions 103c, 103d and 103e which are bent inward from the other side edge portion 108a at a right angle. The other side edge portion 108 is formed by bending in the opposite direction to the flange portion 103b, and the side edge portion 108a formed in the wide portion of the main body 103a and the side edge formed in the narrow portion thereof. The flange portion 103c, 103d, and 103e includes the side edge portion 1 and the side edge portion 108b.
It is formed in 08a, 108b, and 108c.

The wheel house outer 103 is shown in FIG.
As shown by the two-dot chain line in FIG.
3d and 103e are respectively overlapped on the flange portion 106 of the rear fender 100, the horizontal wall 101a of the bent portion 101, and the flange portion 107 via a metal seal, and the flange portions 106 and 103c and the flange portions 107 and 103 are stacked.
Rear fender 100 by spot welding each overlapping part of e
Is bound to. This connecting portion is as shown in FIG. 9, and the metal seal a is applied to the portion shown by the wavy line.
At this time, the horizontal wall 101a of the bent portion 101 and the flange portion 1
The overlapped part of 03d is only a metal seal without spot welding. 10 shows a sectional view of the wheel house outer 103 assembled to the rear fender 100, and the wheel house outer 103 has its flange portion 103b joined to the flange portion 104a and joined to the wheel house inner 104.

Thus, the conventional wheel house outer 1
Reference numeral 03 denotes flange portions 103c, 103d, and 103e formed on the entire circumference of the side edge portion 108 of the rear fender 10.
It has a bond structure in which it is bonded to 0.

The flange portions 106 and 10 after assembly
Reference numeral 7 constitutes a flange portion of the wheel house opening.

[0009]

However, as shown in FIG. 8, the conventional wheel house outer 103 has the intersection b of the flange portions 103c and 103d and the intersection c of the flange portions 103d and 103e in different directions. In order to properly process the intersections b and c, it is necessary to greatly bend the flange portion 103d that connects the intersections b and c so as to separate the intersections b and c (distance D in FIG. 7) as much as possible. There is. This is because the portions of the intersections b and c are formed with flanges having different directions, so that the bending is locally concentrated at the time of press forming, and if the distance D between the intersections b and c is short, it is formed into a complicated shape. Because it cannot be squeezed.

Therefore, the conventional wheel house outer 10
In the joint structure of No. 3, the amount of retreat of the spot flange portion (corresponding to the distance D between the intersections b and c) shown in FIG. 11 becomes large, the interval L of the spot welding S widens, and the joint rigidity and durability deteriorate. In order to solve the problem, it is necessary to increase the plate thickness of the wheel house outer 103 and / or the rear fender 100, which leads to an increase in cost and weight. Further, the total length of the metal seal a becomes longer by the amount of retreat of the spot flange portion. Workability is inferior, resulting in cost increase, and the ventilation drafter 102 is attached to the tip portion A of the full bumper A.
_When the bent portion 101 on the back side of ₁ or the floor side is set, its size and setting position are restricted, and the ventilation, airtight, and door closing performance are deteriorated. To solve this, the ventilation drafter 102 is left. Therefore, it is necessary to take measures such as setting at two places on the right, which leads to an increase in weight and man-hours in the process, and there are various problems such as difficulty in cost and workability.

The present invention has been made by paying attention to such a conventional problem, and an object thereof is to connect an automobile wheel house outer which solves the above problem by reducing the amount of retreat of the spot flange portion. It is in providing structure.

[0012]

In order to achieve the above-mentioned object, the present invention has a spot flange in which a rear fender having a bent portion inward in the vehicle width direction in which a tip portion of a full bumper is arranged and a wheel house outer are provided. And a side surface of a rear fender that is continuous with the spot flange portion and that includes the bent portion in the wheel house outer. Forming a side edge portion along the shape, the rear fender including the bent portion and the side edge portion of the wheel house outer are surface-bonded via a metal seal continuous from the spot flange portion. There is.

[0013]

According to the present invention, the side edges of the wheel house outer having no flange portion are surface-bonded to the rear fender including the bent portion, so that there is no intersection between the flange portions having different directions and the wheel house outer portion is eliminated. The moldability is improved, and the molding can be easily performed even if the amount of retreat of the spot flange portion is reduced.

Further, according to the present invention, since the side edge portion of the wheel house outer and the rear fender including the bent portion are connected to each other by the surface connection through the metal seal continuous from the spot flange portion, the sealing property of the connection portion is improved. Can be made.

[0015]

The present invention will be described in detail below with reference to the illustrated embodiments.

FIG. 1 shows a wheel house outer 1 as an embodiment. This wheel house outer 1 has a wide part 2
A main body 2 formed by bending a plate body having a and a narrow portion 2b in the front-rear direction of the vehicle body and gently bending in the vehicle width direction, and widening by bending one side edge of the main body 2 Part 2a
Side edge portions 3a, 3b formed in the portion and side edge portions 3c, 3d formed in the narrow portion 2b, and these side edge portions 3a, 3b
And flange portions 4 and 5 as spot flange portions formed substantially at right angles to 3c and 3d, and a flange portion 6 formed on the other side edge portion of the main body 2. At this time, the side edge portion 3b is formed so as to project further outward than the side edge portion 3a via the step portion 3e, and the side edge portion 3d is formed.
It is formed so as to be drawn inward from the side edge portion 3c via f. The side edge 3b and the side edge 3c are wide portions 2a.
The side shape of the rear fender 100 that is continuous at the side edge portion 3g formed at the boundary between the narrow width portion 2b and the narrow side portion 2b, and the continuous side surfaces of the side edge portions 3b, 3g, and 3c include the bent portion 101,
That is, the standing wall 105, the horizontal wall 101a, and the vertical wall 10
It is formed along the continuous side surface shape of 1b (see FIG. 2).

Further, the flange portions 4 and 5 are formed discontinuously, and the side edge portions 3b, 3g and 3c between the flange portions 4 and 5 are notched.

On the other hand, the rear fender 100 is substantially the same as the above-mentioned conventional rear fender as shown in FIG. 2, and will be described with the same reference numerals.

That is, in the rear fender 100, a bent portion 101 in which the tip portion A ₁ of the full bumper A is arranged at the lower end portion of the standing wall 105 thereof is a horizontal wall 101a and a vertical wall 101.
b and is formed in a substantially L shape, and the standing wall 1
05 and the vertical wall 101b are respectively formed with flange portions 106 and 107 as spot flange portions, which are curved so as to match the degree of curvature of the wheel house outer 1 in the front-rear direction. At this time, the flange portion 107 is the terminal end 10 of the flange portion 106 that is continuous with the horizontal wall 101a.
It is formed by retreating from 6a by a small retreat amount d (<< conventional retreat amount D).

The wheel house outer 1 is designated by 2 in FIG.
As shown by the dotted line, the flange portions 4 and 5 are overlapped on the flange portions 106 and 107 of the rear fender 100 via a metal seal, and the side edge portions 3b and 3g thereof are formed.
And 3c are the standing walls 10 of the rear fender 100, respectively.
5, the horizontal wall 101a and the vertical wall 101b are overlapped with each other through a metal seal, and the overlapped portions of the flange portions 4 and 106 and the flange portions 5 and 107 are spot-welded to be coupled to the rear fender 100. At this time, the side edges 3a and 3d are respectively the side edges 1 of the conventional wheel house outer 103.
08a and 108c are located at the same position, and the other side edge portions 3b and 3c are formed at positions closer to the rear fender 100 side through the step portions 3e and 3f, respectively, and are bent together with the side edge portion 3g. Rear fender 100 including the part 101
Is formed so as to follow the side shape of the.

The overlapping portion of the flange portion and the side edge portion is as shown in FIG. 3, and the metal seal a is applied to the portion shown by the wavy line. At this time, the overlapping portions of the side edge portions 3b, 3g, and 3c of the wheel house outer 1 along the upright wall 105, the horizontal wall 101a, and the vertical wall 101b of the rear fender 100 are surface-bonded through a metal seal without spot welding. ing. By surface-bonding in this manner, it is possible to improve the sealing property of the overlapping portions of the side edge portions 3b, 3g and 3c.

FIG. 4 is a sectional view showing the wheel house outer 1 assembled to the rear fender 100. The flange portion 6 of the wheel house outer 1 is joined to the flange portion 104a of the wheel house inner 104 by spot welding. A wheelhouse is constructed.

In the wheel house outer 1 constructed as described above, the flange portions 4 and 5 are not continuous because the flange portions are notched, so that there is no intersection of the flange portions having different directions, Even if the set distance d (see FIG. 2) between the flange portions 4 and 5 is reduced, the flange portions 4 and 5 can be easily set.

Therefore, the retreat amount d of the spot flange portion after the wheel house outer 1 is assembled can be made remarkably smaller than the conventional retreat amount D as shown in FIG. Since the joint rigidity and durability are improved by narrowing the thickness, it is possible to reduce the plate thickness of the rear fender 100 and achieve cost reduction and weight reduction.

Further, since the total length of the metal seal a becomes shorter as the receding amount d of the spot flange portion becomes smaller,
It is possible to improve workability and reduce costs.

Further, the installation space for the ventilation drafter 102 is enlarged by the amount by which the receding amount d of the spot flange portion is reduced (the left limit of the conventional drafter space 102 is shown by a dotted line in the drawing), and ventilation, airtightness and door closing are performed. The performance can be improved, and the drafter can be installed on only one side or downsized, and the cost and weight can be reduced.

[0027]

As described above, according to the present invention, the rear fender including the bent portion inward in the vehicle width direction in which the tip portion of the full bumper is arranged, and the bent portion without the flange portion. Since the side edge portion of the wheel house outer formed along the side shape of the rear fender including is a surface-bonded coupling structure through a metal seal, the side edge portion of the wheel house outer has a direction. Of the two different flanges do not appear, and even if the distance between the spot flange portions formed on both sides of the side edge portion is narrowed (the recessed amount of the spot flange portion is small), both flanges are designed. Can be set easily.

As a result, the joint structure of the present invention can be a joint structure in which the amount of retreat of the spot flange portion is small, and the spot welding interval is narrowed to improve joint rigidity and durability, so that the plate thickness of the rear fender is improved. To reduce costs and reduce weight, shorten the total length of the metal seal to improve workability and reduce costs, and expand the ventilation draft installation space. In addition to improving airtightness and door closing performance, it is possible to install the drafter on only one side or downsize it, thereby reducing cost and weight.

Further, according to the joint structure of the present invention, the side edge portion of the wheel house outer is surface-joined to the rear fender including the bent portion through the metal seal continuous from the spot flange portion. Has improved sealability.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a wheel house outer according to an embodiment.

FIG. 2 is a partial perspective view of a rear fender according to an embodiment.

FIG. 3 is a schematic explanatory view of a superposed portion of the wheel house outer and rear fenders of FIGS. 1 and 2.

4 is a sectional view of the assembling structure taken along line IV-IV in FIG.

FIG. 5 is a schematic explanatory view of a coupling structure of a wheel house outer according to an embodiment.

FIG. 6 is a schematic explanatory view of a rear portion where a tip portion of a full bumper is arranged.

FIG. 7 is a partial perspective view of a conventional rear fender.

FIG. 8 is a partial perspective view of a conventional wheel house outer.

9 is a schematic explanatory view of a superposed portion of the rear fender and the wheel house outer of FIGS. 7 and 8. FIG.

10 is a cross-sectional view of the assembling structure taken along line XX of FIG.

FIG. 11 is a schematic explanatory view of a conventional wheel house outer coupling structure.

[Explanation of symbols]

1 wheel house outer 3a, 3b, 3c, 3g side edge 4,5 flange part (spot flange part on wheel house outer side) 100 rear fender 101 bent part (of rear fender) 106, 107 flange part (spot flange on rear fender side) Part) A full bumper A ₁ tip part (of full bumper) a metal seal

Claims (1)

[Claims] 1. A rear fender having a bent portion toward the inside in the vehicle width direction in which the tip portion of the full bumper is arranged, and a wheel house outer are connected via a spot flange portion including the bent portion. A connecting structure for an automobile wheel house outer, wherein the wheel house outer is formed with a side edge portion that is continuous with the spot flange portion and that follows the side surface shape of the rear fender including the bent portion, and the bent portion. A rear fender including the above and a side edge portion of the wheel house outer are surface-bonded to each other via a metal seal continuous from the spot flange portion.