JPH111183A - Side sill connecting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide side sill connecting structure that can sufficiently ensure rigidity of a side sill. SOLUTION: A side sill 1 is arranged in such a way as to be extended longitudinally below a pillar 2 arranged on either side of a body being extended in a vertical direction and provided with a pillar inner panel 20, a pillar outer panel 51 and a pillar reinforcement 21 provided between both panels 20, 51. The side sill 1 is provided with a sill inner panel 10, a sill reinforcement 11, and a sill outer panel 52 extended from the pillar outer panel 51. In structure of connecting the side sill 1 of such constitution, a lower part 23 of the pillar inner panel 20 is jointed to an upper end part 12 of the sill inner panel 10, and a lower end part 24 of the pillar inner panel 20, the sill inner panel 10 and a floor panel 3 are overlapped and jointed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a pillar arranged on both sides of a vehicle body so as to extend in a vertical direction, and a side sill arranged to extend in a front-rear direction below a pillar. For the structure.

[0002]

2. Description of the Related Art As is well known, a side sill 1 which is arranged on both sides of a vehicle body bottom so as to extend in the front-rear direction and constitutes a side member extends upward and downward. Pillars 2 are arranged and also constitute side members, and floor panels 3 are arranged so as to bridge between left and right side sills 1. For example, as shown in FIG. 3 (the cross section around the lower part of the front pillar is drawn in FIG. 3), the side sill 1 and the pillar 2 are formed by a pillar rein hose 21 on the outer surface of the sill rein hose 11. The pillar inner panel 20 is joined by means such as spot welding so that the lower end of the pillar inner panel 20 is sandwiched between the upper end of the sill inner panel 10 and the upper end of the sill rein hose 11. On the other hand, the side sill 1 and the floor panel 3 are bent at a side end of the floor panel 3 to form a flange piece 30, and the flange piece 30 is joined to the outer surface of the sill inner panel 10. They are joined by means such as spot welding.

[0003]

However, in the side sill coupling structure described above, although the side sill 1 has a closed cross-sectional structure to increase rigidity, a load is input from the side of the vehicle body. In the case of an offset collision, or when an offset collision occurs, the cross-sectional shapes of the inner panel 10 and the sill rein hose 11 of the side sill 1 are U-shaped, so that the cross-sectional shape of the side sill 1 is likely to collapse. That is, in order to prevent the cross-sectional shape from being collapsed and to secure the rigidity of the side sill 1 sufficiently, it is necessary to take measures such as setting the thickness of the sill inner panel 10 and the sill rein hose 11 to be large. This leads to an increase in the weight of the vehicle body and, consequently, an increase in cost. FIG.
As is clear from the above, in such a bonding structure,
The rigidity of the sill inner panel 10 is the sill rein hose 1.
However, since the rigidity of the sill inner panel 10 must be increased in order to increase the mounting rigidity of the floor panel 3, the above-described disadvantages are noticeable in the sill inner panel 10.

The present invention has been conceived in view of the above circumstances, and it is an object of the present invention to provide a side sill coupling structure capable of sufficiently securing the rigidity of the side sill.

[0005]

DISCLOSURE OF THE INVENTION In order to solve the above problems, the present invention employs the following technical means.

In other words, according to the present invention, a pillar inner panel and a pillar outer panel are provided on both sides of the vehicle body so as to extend in the vertical direction, and a pillar rein hose is provided between these panels. A sill outer panel, which is arranged below the pillar so as to extend in the front-rear direction and includes a sill inner panel and a sill rein hose, and extends from the pillar outer panel, is formed. A structure for coupling the side sills provided, wherein a lower portion of the pillar inner panel is joined to an upper end of the sill inner panel, and the pillar inner panel extends further downward from the joint portion. The lower end of the sill inner panel and the floor panel are overlapped and joined Wherein, the coupling structure of the side sill is provided.

[0007] According to the above configuration, the cross-sectional shape of the side sill can be made a closed cross-sectional structure by the sill inner panel and the sill rein hose as in the conventional coupling structure. In addition, by attaching the pillar inner panel extending downward from the upper end of the side sill to the sill inner panel, a lower portion of the pillar inner panel defines a closed cross section formed by the sill inner panel and a sill rein hose. Will do. That is, the cross section of the side sill can be configured to have two closed cross sections at the joint with the pillar, and the rigidity of the side sill at this portion is increased.

Further, since the lower end of the pillar inner panel is attached to the sill inner panel, the surface rigidity of the sill inner panel itself is enhanced, and the floor panel is attached to the sill inner panel. Therefore, the mounting rigidity of the floor panel can be increased.

As is apparent from the above description, in the side sill coupling structure having the above-described structure, the rigidity of the side sill, particularly, the rigidity of the sill inner panel is increased, so that a load input from the side of the vehicle body or an offset collision occurs. It is not necessary to increase the thickness of each panel of the side sill in order to increase the rigidity of the side sill. Therefore, the present invention eliminates factors that lead to an increase in the weight of the vehicle body and, consequently, an increase in cost,
The rigidity of the side sill can be sufficiently ensured.

[0010] Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a side view of an automobile, and FIG.
FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1, that is, a main-portion cross-sectional view illustrating an example of a side sill coupling structure according to the present invention below the front pillar. The same members and elements as in the conventional example are denoted by the same reference numerals.

As shown in FIG. 2, side sills 1 which are arranged so as to extend in the front-rear direction on both sides of the bottom of the vehicle body and constitute side members extend vertically in a front position of the passenger compartment. The front sill 2 is arranged above the side sill 1 and also constitutes a side member, and is coupled to a floor panel 3 arranged so as to bridge between the left and right side sills 1.

The front pillar 2 has a pillar inner panel 20 and a pillar outer panel 51, and a pillar rein hose 21 is provided between these panels 20, 51.
It is comprised including. The pillar inner panel 20 and the pillar rein hose 21 are formed in a predetermined shape, for example, a hat-shaped cross section by punching and pressing a metal plate.

The side sill 1 is a sill inner panel 1
0 and a sill rein hose 11 and a sill outer panel 52 extending from the pillar outer panel 51. The sill inner panel 10 and the sill rein hose 11 are also formed by punching and pressing a metal plate, and the upper and lower end portions 12, 13, 14, and 15 have a flange shape and a cross-sectional shape is a hat shape.

The lower ends 14, 15 of the sill inner panel 10 and the sill rein hose 11 constitute the sill outer panel 52 in the front-rear direction at the lower end, and the outer panel 51 forms the pillar outer panel 51 in the vertical direction of the front end. 5 and the lower end 50 of the same 5 by means of spot welding or the like. On the other hand, the upper ends of the sill inner panel 10 and the sill rein hose 11 are connected to the lower part 2 of the pillar inner panel 20.
3 are held together by means such as spot welding. That is, the side sill 1 has a closed cross-sectional structure when the upper and lower ends 12, 13, 14, and 15 of the sill inner panel 10 and the sill rein hose 11 are coupled to each other.

The lower portion 23 of the pillar inner panel 20
Are the sill inner panel 10 and the sill outer panel 11
And is bent inward so as to extend further below the vehicle body from the portion sandwiched by the inner and inner ends of the sill inner panel 10. Means such as spot welding is employed for joining the lower end 24 of the pillar inner panel 20 and the inner surface of the sill inner panel 10. The end 30 of the floor panel 3 is joined to the sill inner panel 10. That is, the lower end 24 of the pillar inner panel 20 and the sill inner panel 1
0 and the end 30 of the floor panel 3 are overlapped and joined. The lower end 22 of the pillar-in hose 21 is joined to the outer surface of the sill-in hose 10, and the outer panel 5 is joined to the outer surface of a lower position of the pillar-in hose 21.

In the above-described connection structure, unlike the conventional connection structure, the lower end 24 of the pillar inner panel 20 is joined to the inner surface of the sill inner panel 10, so that the lower end of the pillar inner panel 20 is The rigidity around the portion where the 24 is joined is increased. For this reason, the mounting rigidity of the floor panel 3 attached to this portion together with the lower end 24 of the pillar inner panel 20 is also enhanced.

Further, by joining the lower end 24 of the pillar inner panel 20 to the inner surface of the sill inner panel 10, the closed cross section of the side sill 1 formed by the sill inner panel 10 and the sill rein hose 11 is formed. It is partitioned. For this reason, the rigidity of the entire side sill 1 is increased.

As is apparent from the above description, in the side sill coupling structure having the above-described structure, the rigidity of the side sill 1, particularly the rigidity of the sill inner panel 10, is increased, so that the load input from the side of the vehicle body or the like. It is not necessary to increase the thickness of each of the panels 10 and 11 of the side sill 1 or to interpose a reinforcing member to increase the rigidity of the side sill 1 in order to cope with the offset collision. Therefore, the invention of the present application eliminates a factor that leads to an increase in the weight of the vehicle body and, consequently, an increase in cost.
Sufficient rigidity can be secured.

In the present embodiment, an example in which the present invention is applied to the connection between the side sill 1 and the front pillar 2 has been described. However, the present invention can be applied to a center pillar and a rear pillar. Needless to say, the effect is obtained.

In the above-described embodiment, the lower end 23 of the pillar inner panel 20 is joined by the upper ends 12 and 13 of the sill inner panel 10 and the sill rein hose 11 so as to be sandwiched therebetween. However, the upper end 13 of the sill re-in hose 11 does not necessarily need to be joined to the lower portion 23 of the pillar inner panel 20, and as shown by a virtual line in FIG. The sill re-in hose 11 may be joined in a state of being separated from the lower part 23 of the pillar inner panel 20 by a predetermined distance.

[Brief description of the drawings]

FIG. 1 is a side view of an automobile.

FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1, that is, a main-portion cross-sectional view showing an example of a side sill coupling structure according to the present invention below the front pillar.

FIG. 3 is a cross-sectional view of a main part illustrating a coupling structure of a side sill according to a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side sill 2 Front pillar 3 Floor panel 10 Sill inner panel 11 Sill inner hose 12 Upper end (of sill inner panel) 20 Pillar inner panel 21 Pillar inner hose 23 Lower part (of pillar inner panel) 24 Lower end (of pillar inner panel) 51 Pillar outer panel 52 Sill outer panel

Claims (1)

[Claims] 1. A pillar which is arranged on both sides of a vehicle body so as to extend in a vertical direction, has a pillar inner panel and a pillar outer panel, and has a pillar rein hose between these panels. for,
A side sill that is arranged below the pillar so as to extend in the front-rear direction, includes a sill inner panel and a sill rein hose, and includes a sill outer panel formed to extend from the pillar outer panel is coupled. The lower part of the pillar inner panel is joined to the upper end of the sill inner panel, and the lower end of the pillar inner panel and the sill inner panel, which extend further downward from this joint part, A side sill connection structure, wherein the floor sill and the floor panel are overlapped and joined.