JPH0717434A - Body side structure - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the door from entering the passenger compartment when an external force is applied from the side. [Structure] Inner member 12, outer member 13, and reinforcing member 14
The closed section of the side sill 10 formed by and is extended upward, and the extension 11 is arranged in a portion of the rear side door opening that overlaps the side surface of the rear seat, and the lower end 16 of the door 7 is provided in the extension 11. The door 7 is formed in a staircase shape following the outer surface, and the lower end of the door 7 is supported by the closed cross section of the side shim 10 including the extension 11 to prevent the door 7 from entering the vehicle compartment and to move up and down into the vehicle compartment. With regard to (3), good elevating property is maintained without the presence of the extension portion 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side structure of a vehicle body of an automobile, and more particularly to a side structure of a vehicle body which is improved around a rear door opening.

[0002]

2. Description of the Related Art The structure around the rear door opening of a vehicle body is
From the viewpoint of emphasizing the ease of getting in and out of the passenger compartment, as shown in FIG. 5, the height of the lower side sill 2 constituting the main body 1 is kept low and the opening a is maximized. ing. In this case, the side sill 2 is disadvantageous in strength because the height of the side sill 2 is kept low.
As shown in Fig. 3, the side sill 2 is formed by a U-shaped inner member 3 and an outer member 4, and both members are combined and the flange portions 3a and 4a provided at the respective edges are welded together to form a closed cross section. The structure has a desired strength. In order to further improve the strength,
The reinforcing member 5 may be interposed between the inner member 3 and the outer member 4.

[0003]

By the way, according to the side part structure of the vehicle body provided with the side sill 2, as shown in FIG. 7, a mating portion 6 of the inner member 3 and the outer member 4 constituting the side sill 2 is formed. Since the (flange portion 3a, the flange portion 4a portion) is a bearing portion that exclusively receives the lower end portion of the door 7,
For example, as shown by an arrow F in FIG. 8, when a large external force is applied to the door 7 from the side of the vehicle body, the mating portion 6 may be deformed and the door 7 may greatly enter the vehicle interior. . Further, the door 7 is usually a buffer beam 8 in the door body 7a.
And a cushioning pad 9 is disposed between the door body 7a and the door trim 7b to form a shock absorbing structure as a whole. However, in the case where the door 7 greatly enters the passenger compartment, The impact absorbing effect will not be sufficiently exhibited.

The present invention has been made in view of the above-mentioned problems of the prior art, and provides a side portion structure of a vehicle body capable of suppressing the door from entering the vehicle interior when an external force is applied from the side. The purpose is to

[0005]

In order to achieve the above-mentioned object, the present invention extends a closed cross section of a side sill upward and arranges the extended portion in a portion of a rear side door opening that overlaps a side surface of a rear seat. The lower end of the door is supported on the outer surface of the side sill including the extension.

[0006]

In the vehicle body constructed as described above, the closed section of the side sill including the extension supports the door,
The rigidity of the supporting portion is increased, and even if an external force is applied from the side of the vehicle body, the door is less likely to enter the vehicle interior.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 3 show a side structure of a vehicle body according to the present invention. The overall structure is shown in Figure 5 above.
Since it is the same as that shown in FIG. 7, the same parts as those shown in these figures are designated by the same reference numerals,
The description will be omitted. In the present embodiment, the side sill 10 constituting the lower side of the main body 1 extends a part in the longitudinal direction upward to form an extension portion 11, and this extension portion 11 is located inside the door opening a and is the rear seat S. It is placed in the part that overlaps the side surface of.

More specifically, the extension 11 of the side sill 10
Is formed so as to have a triangular expansion in the corner portion that transitions from the side sill 10 to the quarter panel 1a,
The rear side portion of the side surface of the rear seat S is covered from the outside.
As shown in FIG. 2, the extension portion 11 includes an upper flange portion 12a of the inner member 12 which is greatly extended upward and an outer member 13 which is extended stepwise upward.
The upper edge 13a of the
Is formed from the upper edge 14a. A flange portion 13b is integrally provided on the upper edge of the upper edge portion 13a of the outer member 13, and the inner member 12, the outer member 13 and the reinforcing member are provided.
The three members of 14 are welded and integrated at the mating portion 15 by joining the respective flange portions 12a and 13b and the upper edge portion 14a. As a result, the outer member 13 is provided inside the extension portion 11.
The closed cross section defined by the reinforcing member 14 and the reinforcing member 14 extends, and the side sill 10 has a particularly increased rigidity in the corner portion that transitions to the quarter panel 1a.

On the other hand, as shown in FIG. 3, the rear door 7 has a lower end 16 having a stepped shape which follows the shape of the outer surface of the extension 11 of the side sill 10, that is, the upper edge 13a of the outer member 13. Is formed in. The rear door 7
Always insert the inner side of the door body 7a into the side sills.
The closed state is maintained by abutting the mating portion 15 of 10.

In the vehicle body constructed as described above, when a large external force is applied to the door 7 from the side as shown by arrow F in FIG.
Will come into contact with the outer surface of the extension portion 11. But,
Since the extension portion 11 has a closed cross section and has increased rigidity as described above, it maintains its shape against the impact, and therefore only the door 7 is deformed and slightly penetrates into the vehicle interior. Become. Further, the deformation of the door 7 in this manner effectively absorbs the impact. Moreover, since the extension portion 11 of the side sill 10 is arranged only in a portion that overlaps the side surface of the rear seat S, it does not interfere with the getting on and off of people,
Getting on and off does not deteriorate.

[0012]

As described above in detail, according to the side structure of the vehicle body according to the present invention, the closed cross-section portion of the side sill including the extension supports the door, so that the rigidity of the support portion is increased. Even if an external force is applied from the side of the vehicle body, the door is less likely to enter the vehicle interior. Moreover, the extension of the side sill is
Since it is only arranged in a portion that overlaps the side surface of the rear seat, the ease of getting on and off the passenger compartment is not deteriorated.

[Brief description of drawings]

FIG. 1 is a side view schematically showing a side structure of a vehicle body according to the present invention.

FIG. 2 is a sectional view taken along the line BB of FIG.

FIG. 3 is a cross-sectional view showing a relationship between a side shim and a door.

FIG. 4 is a cross-sectional view showing a deformed state of the door.

FIG. 5 is a side view schematically showing a side structure of a conventional vehicle body.

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

FIG. 7 is a cross-sectional view showing a relationship between a conventional side shim and a door.

FIG. 8 is a cross-sectional view showing a deformed state of a conventional door.

[Explanation of symbols]

 1 main body 10 side shim 11 extension 12 inner member 13 outer member 14 reinforcing member a door opening S rear seat

Claims (1)

[Claims] 1. A closed cross section of the side sill is extended upward,
A side portion of the vehicle body, characterized in that the extension portion is arranged in a portion of the rear side door opening that overlaps a side surface of the rear seat, and the lower end portion of the door is supported by the outer surface of the side sill including the extension portion. Construction.