JPH0420704Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a joint structure between a rocker member and a floor panel, and particularly relates to a structure in which a floor panel is inserted into a closed cross section of a rocker member and joined together. .

[Conventional technology]

Conventionally, the structure of the joint between the rocker part and the floor panel is shown in FIG. 2, for example. In order to also increase the joint rigidity of the center pillar 4, the center pillar 4
center pillar inner 4b and floor panel 1'
The center pillar reinforcement 5 is welded to the center pillar reinforcement 5.
A flange 50 located approximately at the center of the rocker member 2' is welded to the rocker inner panel 2b of the rocker member 2'.

In addition, the structure shown in FIG. 3 is an "automobile body structure" disclosed in Japanese Utility Model Application Publication No. 61-7473.
``In an automobile body structure having a center pillar 4 whose upper and lower ends are connected to a roof side rail 6 and a rocker panel 2, the upper part of the center pillar 4 is connected to a roof center reinforcement 7 and a top bracket 8.
, and the lower part of the center pillar 4 is directly connected to the front floor cross member 9 and the lower bracket 1.
0.

Furthermore, the structure shown in Figure 4 is
The "vehicle body structure" disclosed in Publication No. 85787,
``In a vehicle body structure in which the rocker member 2 reinforcing both side edges of the floor plate 1 has a box-shaped cross section with an outer plate 2a and an inner plate 2b, the outer plate 2a and the inner plate 2
The overlapping joint part b is provided on the inner side wall of the vehicle body, and the side edge of the floor plate 1 is sandwiched between the overlapping joint parts and joined by welding, and the locking part of the side edge of the floor plate 1 is The vehicle body width can be changed by adjusting the amount of inward protrusion of the member 2.

Further, as another example of the structure shown in FIG. 4, there is, for example, Japanese Utility Model Application Publication No. 51-84006.

[Problem that the invention attempts to solve]

However, in the case of FIG. 2, although the joint rigidity between the rocker member 2' and the floor panel 1' at the center pillar 4 portion is high, when considering the entire vehicle body, there is a possibility that the rigidity of the joint portion may not be utilized effectively.

In addition, in the case of FIG. 4, the floor panel inserted into the closed cross section of the rocker member 2 is sandwiched between the mating flanges of the outer plate 2a and the inner plate 2b forming the rocker member 2, and the end portion thereof is Since it has a structure in which the end is joined to the inner plate 2b in the closed cross section, the second
As in the case of FIG. 3 and FIG. 3, it is not possible to ensure sufficient rigidity of the joint, and as a result, sufficient rigidity against the rotational moment of the rocker member 2 cannot be obtained.

Furthermore, the structure disclosed in the above-mentioned Japanese Utility Model Publication No. 51-84006 is also a structure in which the floor panel inserted into the cavity of the side sill is sandwiched between the mating flanges of the upper and lower panels constituting the side sill. Therefore, the same problem as the structure shown in FIG. 4 occurs.

Therefore, in order to solve these problems, this invention was developed by improving the way the floor panel and rocker member are connected.
The object of the present invention is to suppress the rotational moment of the rocker member by improving the joint rigidity of each member of the rocker member and the pillar.

[Means for solving problems]

Therefore, this invention attempts to solve the above-mentioned problems by connecting the ends of the floor panel inserted into the closed cross section of the rocker member to the pillars.

More specifically, referring to the reference numerals shown in FIG. The respective mating flanges 20, 2 of the rocker outer panel 2a and rocker inner panel 2b
0, 21, and 21, and in the joint structure between the rocker member 2 and the floor panel, in which the pillar 4 is joined to the rocker member 2, the floor panel 1 is sandwiched between the rocker member 2 and the pillar 4. The end portion 1a of the floor panel 1 is extended to the lower end portion 4c of the pillar 4, and the extended portion 1b is connected to the lower end portion 4c of the pillar 4.

[Effect]

According to the above-mentioned means, in order to increase the joint rigidity between the floor panel 1 and the rocker member 2, the rocker member 2
The outer panel 2 is inserted into the closed section 3 of the outer panel 2.
By connecting the extension part 1b of the floor panel 1 sandwiched between the mating flanges 20, 20, 21, 21 of the inner panel 2b and the lower end part 4c of the pillar 4, the floor panel 1, the rocker member 2, Furthermore, the joint rigidity of each member of the pillar 4 can be further improved, and the rigidity of the rocker member 2 against the rotational moment can be increased, so that this rotational moment can be suppressed.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

FIG. 1 shows an embodiment of this invention, in which a rocker member 2 for reinforcing both sides of a floor panel 1 of an automobile body is formed into a closed cross section 3 by a rocker outer panel 2a and a rocker inner panel 2b. A center pillar 4 is coupled to the member 2 by welding.

A center pillar outer 4a forming this center pillar 4 is welded to a rocker outer panel 2a,
The center pillar inner 4b is welded to the rocker inner panel 2b of the rocker member 2 and the floor panel 1 via the center pillar reinforcement 5,
The center pillar reinforcement 5 is welded to the rocker inner panel 2b by welding a flange 50 at a substantially central portion of the center pillar reinforcement 5 to the rocker inner panel 2b.

Further, the floor panel 1 is inserted into the closed section 3 of the rocker member 2, and the upper mating flanges 20, 20 of the rocker outer panel 2a and the rocker inner panel 2b forming the rocker member 2 are inserted into the closed cross section 3 of the rocker member 2.
By being sandwiched between the lower mating flanges 21 and 21 and welded by spot welding W,
It is combined with the so-called Sanderutsch.

In this embodiment, in order to prevent the rocker member 2 from falling toward the floor panel 1 side, the rocker inner panel 2b has its skirt portion 200 extended to the flat surface portion of the floor panel 1. are joined by spot welding W.

Note that the reference numeral 11 in FIG. 1 is a hinge reinforcement.

In the joint structure constructed in this way, as shown in FIG. 1, the floor panel 1 is
The rocker member is formed into a shape that is bent upward within the closed cross section 3, and the end portion 1a of the floor panel 1 is connected to the mating flange 2.
0 and 20, extending further upwards to the lower end of the center pillar 4.

That is, in this embodiment, the end portion 1a of the floor panel 1 is extended to the lower end portion 4c of the center pillar inner 4b forming the center pillar 4.

Then, the extension part 1b of this floor panel 1 is
It is joined to the lower end portion 4c of the center pillar inner 4b by spot welding.

Therefore, the end portion 1a of the floor panel 1 is not terminally connected within the closed section 3 of the rocker member 2, but the extension portion 1b is connected to the lower end portion 4c of the center pillar inner 4b. That is, by connecting the extension portion 1b of the floor panel 1 and the center pillar inner lower end portion 4c at a portion above the rocker member 2, the center pillar reinforcement 5
Coupled with the intervening connection, not only the joint rigidity between the floor panel 1 and the rocker member 2 is improved, but also the joint rigidity of each member of the floor panel 1, the rocker member 2, and the center pillar 4 is ensured to a tenth level. be able to.

Further, by further improving the joint rigidity, sufficient rigidity can be obtained even against the rotational moment applied to the rocker member 2.
This rotational moment of the rocker member 1 can be reliably suppressed.

Thus, the overall rigidity of the vehicle body can be effectively increased.

[Effect of idea]

As mentioned above, this invention forms a rocker member by extending the end of the floor panel inserted into the closed cross section of the rocker member and extending it to the lower end of the pillar, and joining it at a portion above the rocker member. In addition to preventing the rocker inner panel from collapsing toward the floor panel, it is possible to significantly improve the joint rigidity of the floor panel, rocker member, and pillar members, and this also increases the rigidity of the rocker member against rotational moment. Therefore, the rotational moment of this rocker member can be suppressed.

[Brief explanation of drawings]

Fig. 1 is a drawing showing an embodiment of this invention, Figs. 2 to 4 show conventional examples, and Fig. 2 is a drawing of a first conventional example corresponding to Fig. 1; 3 is a perspective view showing the second conventional example, and FIG. 4 is a sectional view showing the third conventional example. 1... Floor panel, 1a... Edge, 1b...
Extension part, 2... Locker member, 2a... Locker outer panel, 2b... Locker inner panel, 20,
21...Flange, 3...Closed section, 4...Pillar (center pillar), 4b...Pillar inner (center pillar inner), 4c...Lower end portion.

Claims (1)

[Claims for Utility Model Registration] A floor panel is inserted within the closed cross section of a rocker member formed by a rocker outer panel and a rocker inner panel, and the floor panel is inserted between each mating flange of the rocker outer panel and rocker inner panel. In the joint structure between the rocker member and the floor panel, which is formed by sandwiching the rocker member with the rocker member and connecting a pillar to the rocker member, the floor panel is bent within the closed cross section of the rocker member, and the end portion of the floor panel is A joint structure between a rocker member and a floor panel, characterized in that the pillar is extended to the lower end of the pillar, and the extended part is joined to the lower end of the pillar.