JP2679404B2 - Car side sill rear end structure - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear end structure of a side sill that constitutes front-rear skeleton members on both sides of a floor of an automobile.

2. Description of the Related Art As is well known, a side sill of an automobile has a closed cross section formed of a sill outer and a sill inner, and its rear end is closed by a closing plate in a rear wheel house. This will be described with reference to FIGS. 3 to 6. Reference numeral 1 denotes a sill body formed by a sill outer 2 and a sill inner 3 in a closed cross section. The sill outer 2 and the sill inner 3 each have flanges 4 and 5 at the upper and lower edges. , The upper and lower edge flanges 4 and 5 are joined together and the sill body 1 with a closed cross section as described above is used.
Is formed. The sill outer 2 has a rising portion 6 at the rear end.
And the rear fender 7 is formed on the rising portion 6.
Are joined together. The rear end of the sill body 1 faces the rear wheel house 8, and the rear end opening of the sill body 1 is closed by a closing plate 9 joined between the sill outer 2 and the sill inner 3 in the rear wheel house 8. I am doing it. The closing plate 9 is joined to the front end of the rear wheel house outer 16,
The closing plate 9 is a rear wheel house outer
Similar to 16, it is formed in a substantially arcuate cross-sectional shape, and the flange 10 formed on the outer side edge is joined to the flange 12 formed on the rear edge of the rising portion 6 of the sill outer 2 while the inner side edge is formed. The formed flange 11 has a rear end edge of the sill inner 3, specifically, a flange 13 continuously formed at each end of the upper wall 3a, the vertical wall 3b, and the bottom wall 3c of the sill inner 3 but abutted and joined thereto. . A flange 14 is formed on the lower edge of the closing plate 9 so as to be continuous with the flange 10 on the outer edge and is joined to the rear end of the bottom wall 2a of the sill outer 2 and is substantially perpendicular to the end of the flange 14. A flange 15 is formed by bending and is joined to the lower edge flange 4 of the sill outer 2. Reference numeral 17 in FIG. 4 indicates a rear wheel house inner. This similar structure is shown, for example, in Japanese Utility Model Publication No. 61-187779.

The closing plate 9 is formed as an extension member of the front end portion of the rear wheel house outer 16 as described above, and the outer edge flange 10 of the closing plate 9 is located behind the rising portion 6 of the sill outer 2. The inner edge flange 11 of the closing plate 9 joined to the end flange 12
In order to abut the flange 13 of the rear end edge of the sill inner 3 on the sill inner 3 for joining, the outer edge flange 10 of the closing plate 9 is joined.
And the inner edge flange 11 are formed to be offset in the front-rear direction, and accordingly, the lower edge flanges 14 and 15 of the closing plate 9 and the inner edge flange 11 are formed discontinuously. The moldability of the closing plate 9 deteriorates. In addition, a sealing material such as a seal gun is applied to the end of the periphery of the closing plate 9 and the joint between the sill outer 2 and the sill inner 3 to prevent water from entering the sill. , 1
Since 5 and the inner edge flange 11 are discontinuous, the work of applying the sealing material becomes difficult, and the sealing line becomes discontinuous, which leaves a concern about water solubility. Furthermore, since the flange 15 of the closing plate 9 and the inner edge flange 11 are discontinuous, the joints between these flanges 15 and 11 and the lower edge flange 4 of the sill outer 2 and the rear edge flange 13 of the sill inner 3 are joined. As shown in FIG. 6, there is a gap δ penetrating inside and outside the sill at the intersection point of, and there is a problem that water penetrates into the sill from this portion. Therefore, the present invention can reliably seal around the closing plate joint portion at the rear end of the sill body, can easily perform the sealing material application work, and can also improve the moldability of the closing plate. A rear side sill structure for an automobile is provided.

Means for Solving the Problems A sill outer and a sill inner whose upper and lower edges are respectively bent and bent are joined together, and the upper and lower edge flanges are joined together to form a sill body with a closed cross section. A structure in which a closing plate is joined to a rear end opening of the sill body across a sill outer and a sill inner, and the closing end of the sill body is closed by the closing plate. On the other hand, while forming an extension part which is substantially flush with the bottom end part of the bottom wall of the sill outer, a flange that overlaps in series with the bottom end part of the bottom wall of the sill outer and the extension part of the sill inner is formed on the lower edge of the closing plate. The bottom edge flange of the closing plate is joined to the rear end of the bottom wall of the sill outer and the extension of the sill inner.

Action Since the lower edge flange of the closing plate is polymerized and joined to the rear end of the bottom wall of the sill outer and the extension of the sill inner in series, the joint portion of the lower edge flange and the sill outer and the sill inner are closed. The outer and inner edges of the plate can be joined together at their respective joints. Therefore, it is possible to continuously apply the sealing material to the ends of the joint portions.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, where the same reference numerals are assigned to the same portions as those of the above-described conventional configuration.

1-3, the sill outer 2 and the sill inner 3 are provided with upper and lower edge flanges 4 and 5, respectively.
The lower edge flanges 4 and 5 are joined together, and the sill outer 2 and the sill inner 3 form a sill body 1 in a closed cross section. A rising portion 6 is formed at a rear end portion of the sill outer 2 and a rear fender 7 is joined to the rising portion 6. A closing plate 9 is joined to the rear end opening of the sill body 1 facing the inside of the rear wheel house 8 over the sill outer 2 and the sill inner 3, and the rear end opening of the sill body 1 is formed by the closing plate 9. Is closed. The closing plate 9 is joined to the front end of the rear wheel house outer 16 and serves as an extension member of the front end of the rear wheel house outer 16. The closing plate 9 is formed in a substantially arc-shaped cross-sectional shape like the rear wheel house outer 16. There is. Therefore, a flange 10 is formed by bending on the outer edge of the closing plate 9 toward the inside of the rear wheel house 8. The flange 10 is joined to the flange 12 formed by bending on the rear edge of the rising portion 6 of the sill outer 2. There is a sill inner 3 on the inner edge of the closing plate 9.
A flange 11 for receiving a trailing edge flange 13A formed continuously on the trailing edges of the upper wall 3a and the vertical wall 3b is formed by bending, and the trailing edge flange 13A is abutted and joined to the flange 11.

At the rear end of the bottom wall 3c of the sill inner 3, an extension 20 that is substantially flush with the rear end of the bottom wall 2a of the sill outer 2 is joined to the lower edge flange 4 of the sill outer 2. It is formed integrally with the flange 5.

On the other hand, at the lower edge of the closing plate 9, the rear end of the bottom wall 2a of the sill outer 2 and the extension of the sill inner 3 are provided.
A flange 21 that overlaps with 20 is formed by bending toward the inside of the rear wheel house 8, and the flange 21 at the lower edge and the flanges 10 and 11 at the outer edge and the inner edge are connected and integrally formed. is there. And this closing plate 9
The lower edge flange 21 of the bottom wall 2a of the sill outer 2
The upper surface of the extension 20 of the sill inner 3 is superposed and joined.

According to the structure of the above-described embodiment, the bottom wall 3c of the sill inner 3 is provided with the extension portion 20 at the rear end portion thereof which is substantially flush with the rear end portion of the bottom wall 2a of the sill outer 2. And extension 20
Since the lower edge flange 21 of the closing plate 9 is joined to the end of the closing plate 9, the end of the joint portion of the lower edge flange 21 is linearly continuous, and this is the flange 10 at the outer and inner edges of the closing plate 9. , 11 and the trailing edge flange 12 of the rising portion 6 of the sill outer 2 and the trailing edge flange 13A of the sill inner 3 are connected to the ends of the respective joining portions. Therefore, since the sealing wire for applying the sealing material to these ends is continuous at the peripheral edge of the closing plate 9, the sealing material applying work by the sealing gun can be easily performed, and the missing portion of the sealing material does not occur. , It is possible to make a reliable seal. Further, since the closing plate 9 can be formed by continuously bending the flanges 10, 11, and 21 integrally and integrally, the closing plate 9 can be formed.
Of course, since there is no discontinuity between the lower edge flange 21 and the inner edge flange 11,
Since there is no continuous gap δ inside and outside the seal as in the conventional case at the butt joint between the lower edge flanges 4 and 5 of the sill outer 2 and the sill inner 3 and the closing plate 9,
Even more reliable sealing can be performed.

In the above embodiment, the closing plate 9
However, the closing plate 9 may be integrally extended to the front side portion of the rear wheel house outer 16.

EFFECTS OF THE INVENTION As described above, according to the present invention, the bottom wall rear end of the sill inner is formed with the extension part which is substantially flush with the bottom wall rear end part of the sill outer while the lower edge of the closing plate is formed. Since a bottom edge flange is formed on the bottom wall and the extension of these sill outers in series, and the bottom edge flanges are polymerized and joined, the end of the joining portion of this bottom edge flange is connected to the sill outer bottom. Since it can be linearly continued from the wall to the bottom wall of the sill inner, it is possible to easily and surely apply the sealing material to the portion and prevent the defective sealing. Moreover, since the lower edge flange of the closing plate can be formed as a continuous surface from the outer edge to the inner edge of the closing plate, the outer edge and the sill outer, the inner edge and the sill inner, and the joint portion of the lower edge flange. It is also possible to make the terminal continuous with each other, so that the sealing material coating operation can be performed more easily and surely. Further, since the discontinuous powder is not generated at the peripheral edge of the closing plate, the moldability of the closing plate can be improved and the cost can be greatly reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, FIG. 3 is a rear perspective view of an automobile, and FIG. 4 is an enlarged view of an essential part of FIG. Figures and 5 are A of Figure 4.
FIG. 6 is a horizontal sectional view of the B range portion of FIG. 1 ... sill body, 2 ... sill outer, 3 ... sill inner, 2a ...
Bottom wall of sill outer, 3c ... Bottom wall of sill inner, 4 ... Top of sill outer, lower edge flange, 5 ... Top of sill inner, lower edge flange, 9 ... Closing plate, 20 ... Extension, 21 ...
Lower edge flange of closing plate.

Claims (1)

(57) [Claims] 1. A sill outer and a sill inner whose upper and lower ends are formed by bending a flange, respectively, and the upper and lower edge flanges are joined together to form a sill body with the sill outer and the sill inner in a closed cross section. In a structure in which a closing plate is joined to the sill outer and the sill inner in the rear end opening of the main body, and the rear end opening of the sill main body is closed by the closing plate, the sill outer is attached to the rear end of the bottom wall of the sill inner. While forming an extension portion that is substantially flush with the bottom wall rear end portion of the, the bottom edge of the closing plate to form a series of overlapping flanges on the bottom end of the sill outer and the extension of the sill inner, The lower edge flange of the closing plate is joined to the rear end of the bottom wall of the sill outer and the extension of the sill inner, Side sill rear end structure of.