JPS631656Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a rear pillar structure of an automobile.

(Prior Art) Generally, a rear pillar of an automobile is formed by a rear pillar inner and a rear pillar outer.
The upper end portion is connected to the roof panel to form a corner portion of the rear window opening.

Since the corner portion of the rear window opening receives a concentrated load, it is necessary to increase the strength of the vehicle body at that portion. For example, as shown in Japanese Utility Model Application Publication No. 52-151516, the structure of the upper part of the rear pillar is such that the upper end of the inner rear pillar is divided and the connecting part with the roof rail extending in the longitudinal direction of the side of the vehicle body is constructed separately. However, this proposed structure still has the problem that the corner portions are not sufficiently reinforced.

On the other hand, as shown in Japanese Utility Model Application Publication No. 55-135668, when a columnar structure consisting of an inner and an outer forming a closed cross section is connected to the roof,
A partition member that extends in the longitudinal direction of the columnar structure and bisects the closed cross section is provided, and the upper end of this partition member is overlapped with the inner part of the columnar structure and placed at the corner formed by the columnar structure and the roof. There is a concept of joining.

(Problem to be solved by the invention) However, in the case of the above-mentioned partition member, although the strength of the columnar structure itself is increased, the upper end of the partition member is only overlapped with the inner part of the columnar structure. There is a problem in that it is difficult to obtain a sufficient reinforcing effect against the bending load that acts between the columnar structure and the roof in a direction intersecting the overlapping planes.

(Means for solving the problems) The present invention, as a means to solve the above problems,
In contrast to the rear pillar of an automobile, which is formed into a closed cross-sectional shape by an inner rear pillar and an outer rear pillar, and whose upper end is connected to a rear header provided on the back surface of the rear end of the roof panel and forms a corner part of the rear window opening, the above-mentioned rear pillar A gusset having a partition wall, a flange, and a connecting piece is interposed between the inner and the rear pillar outer, and the partition wall of the gusset extends outward from the corner at the upper end of the rear pillar to form the closed cross section. While creating a joint across the partition wall, flanges connected to the upper and lower sides of the partition wall are welded to the opposing inner surfaces of the rear pillar inner and rear pillar outer, respectively, and are further extended to the outer end of the gusset. The connecting piece is held between the joining edges of the rear pillar inner and rear pillar outer, and the connecting piece extending to the inner end is joined to the back side of the corner part to reinforce the corner part. The present invention provides a distinctive rear pillar structure for automobiles.

(Function) In the case of the above rear pillar structure, the partition wall of the gusset at the upper end of the rear pillar not only extends outward from the corner of the rear window opening;
The flanges on both the upper and lower sides of the partition wall are joined to the opposing inner surfaces of the inner and outer rear pillars,
It creates a knot that crosses the closed cross section of the rear pillar. Therefore, in response to a load that causes the rear pillar to change its angle with respect to the roof, the gusset efficiently disperses the load between the inner and outer parts of the rear pillar and stretches itself as a node without twisting, thereby preventing the rear pillar from coming off the rear header. This prevents the phenomenon that the rear window opening tends to become distorted.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. In the automobile shown in FIG. 1, 1 is a rear pillar, 2 is a roof panel, and 3 is a rear window.This invention improves the structure of the connection part with the roof panel 2 at the upper end of the rear pillar 1.

FIG. 2 is a perspective view of the structure of the upper end of the rear pillar 1 viewed from the outside of the top, FIGS. 3 and 4 are cross-sectional views thereof, and FIG. 5 is an exploded perspective view. The rear pillar 1 is formed into a closed cross-sectional shape by a rear pillar inner 4 and a rear pillar outer 5, and the upper end of this rear pillar 1 branches into a substantially Y-shape, and is joined to the back side of the roof panel 2, respectively. It is connected to a roof rail 6 extending in the front-rear direction of the vehicle body and a rear surface of the rear end of the roof panel 2, and connected to a rear header 7 extending in the left-right direction, so that a closed cross section is continuously formed.

A connecting portion between the rear pillar 1 and the rear header 7 is formed at a corner portion 8 of an opening for mounting the rear window 3. In addition, 9
is a rain rail extending in the front-rear direction.

On the other hand, 10 is a gusset interposed within the closed section of the rear pillar 1, that is, between the rear pillar inner 4 and the rear pillar outer 5, and this gusset 10 reinforces the corner portion 8.

The gusset 10 is formed into a substantially Z-shaped cross section by a partition wall 10a and first and second flanges 10b and 10c connected to the upper and lower sides of the partition wall 10a, and has an inner side and an outer side. First and second connecting pieces 10d and 10e extend from both ends.

The gusset 10 has a first flange 10b,
The second flange 10c is joined to the opposing inner surfaces of the rear pillar inner 4 and the rear pillar outer 5 by spot welding at appropriate positions (see Fig. 3), and the partition wall 10a is closed by the rear pillar inner 4 and the rear pillar outer 5. The cross section is arranged so as to extend outward from the corner portion 8 and cross it to form a knot.

Further, in the gusset 10, the first connecting piece 10d at the inner end is joined to the back side of the corner part 8, and the second connecting piece 10e at the outer end is joined to the back side of the corner part 8.
is rear pillar inner 4 and rear pillar outer 5
It is sandwiched between the joint edges and welded together.

The flanges 10b, 10c and the connecting piece 10
The spot welding parts d and 10e are performed at a position where the painted surface of the rear pillar outer 5 does not appear on the vehicle body surface, and the flanges 10b and 10c other than the welding parts are welded so that there is a gap between them and the rear surface of the rear pillar inner 4 or the rear pillar outer 5. It is formed.

In other words, the welding area for the rear pillar outer 5 is the welding area for the roof panel 2 in the upper part.
The lower part is concealed by attaching a decorative garnish 11 as shown in FIG. In addition, in Fig. 4,
12 is the rear door sash.

In addition, the above-mentioned gusset 10 is welded first to the rear pillar outer 5 and then to the rear pillar inner 4. In order to perform the welding work, the rear pillar inner 4 has a working hole 13 (the fifth (see figure) is opened.

With the configuration as in the above embodiment, the flanges 10b and 10c of the gusset 10 are attached to the rear pillar inner 4.
and the rear pillar outer 5, and the partition wall 1
By partitioning the closed cross section of the rear pillar 1 to form a knot, the strength of this part is improved, while the one end connecting piece 10d of the gusset 10
The corner portion 8 can be reinforced by connecting and fixing it to the corner portion 8 and dispersing the concentration of load acting on this portion via the gusset 10.

That is, when a load is applied to the rear pillar 1 in its longitudinal direction, the load concentrates on the corner portion 8 and tends to cause the rear pillar 1 to deform at the corner portion 8 and come off from the rear header 7. In the case of the embodiment, the load is efficiently distributed by the gusset 10 to both the rear pillar inner 4 and the rear pillar outer 5 through the flanges 10b and 10c, so that the corner portion 8 can be effectively reinforced, and the rear pillar Deformation at 8 is prevented, thereby preventing the phenomenon of coming off from the rear header 7. Furthermore, when a load is applied in opposite directions to the left and right rear pillars 1 in the longitudinal direction, the left and right corners 8 receive a force that makes one angle wider and the other angle narrower, causing the rear window opening to become distorted. Furthermore, although the gusset 10 is likely to twist back and forth, the gusset 10 serves as a joint to prevent the gusset from twisting itself, thereby improving the durability of the vehicle body.

In the above embodiment, the first flange 10b
The second flange 10c extends in opposite directions to each other and has a substantially Z-shaped cross section, but the design of this flange can be appropriately changed to a U-shaped cross section.

(Effect of the invention) As explained above, according to the invention, a flange is joined between the rear pillar inner and rear pillar outer of the rear pillar to the opposing inner surfaces of the inner and outer to form a corner of the rear window opening. By inserting a gusset that extends outward from the rear pillar and forms a knot across the closed cross section of the rear pillar, this gusset efficiently distributes the load between the inner and outer parts of the rear pillar and allows it to protrude against the load without twisting. Because it is stretched, the corner portions can be effectively reinforced, it has sufficient strength against concentrated loads, and it has various practical advantages, such as requiring few structural changes.

[Brief description of the drawings]

The drawings illustrate an embodiment of the present invention, and FIG. 1 is a rear perspective view of the automobile, FIG. 2 is an enlarged perspective view of the main part with a part of the rear pillar removed, and FIG. 3 is a view taken from A--A in FIG. 4 is a sectional view taken along the line A, FIG. 4 is a sectional view taken along the line B-B, and FIG. 5 is an exploded perspective view of the main parts. 1... Rear pillar, 2... Roof panel, 3...
...Rear window, 4...Rear pillar inner, 5
...Rear pillar outer, 6...Roof rail,
7...Rear header, 8...Corner section, 10...
...Gusset, 10a...Partition wall, 10b, 10c
...Flange, 10d, 10e... Connection piece.

Claims (1)

[Scope of utility model registration request] In contrast to the rear pillar of an automobile, which is formed into a closed cross-sectional shape by an inner rear pillar and an outer rear pillar, and whose upper end is connected to a rear header provided on the back surface of the rear end of the roof panel and forms a corner part of the rear window opening, the above-mentioned rear pillar A gusset having a partition wall, a flange, and a connecting piece is interposed between the inner and the rear pillar outer, and the partition wall of the gusset extends outward from the corner at the upper end of the rear pillar and forms the closed cross section. While creating a joint across the partition wall, flanges connected to the upper and lower sides of the partition wall are welded to the opposing inner surfaces of the rear pillar inner and rear pillar outer, respectively, and are further extended to the outer end of the gusset. The connecting piece is held between the joining edges of the rear pillar inner and rear pillar outer, and the connecting piece extending to the inner end is joined to the back side of the corner part,
An automobile rear pillar structure characterized by reinforcing the corner portion.