JPH0246462Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to the upper structure of automobile pillars, and more specifically, it is an improvement that prevents electrocoated paint from dripping into the area exposed to the passenger compartment at the joint between the roof side rail inner panel and the pillar inner panel. related to things.

[Conventional technology]

For example, the structure shown in Japanese Utility Model Application Publication No. 59-133371 is adopted for the joint structure between the upper part of the pillar of an automobile, especially the center pillar, and the roof side rail in order to maintain a high degree of roof support strength of the pillar. That is, as shown in FIG. 5 of the present application, a roof side rail a is made up of a roof side rail outer panel b and a roof side rail inner panel c, and a pillar is made up of a pillar outer panel e and a pillar inner panel f. At the upper joint of d, the upper end of the pillar inner panel f is extended to the inside of the roof side rail a and overlapped with the inner surface of the roof side rail a or the overlapping joint of the inner panel c and the outer panel b on the roof side rail. Welded. Therefore, in this case, the roof side rail inner panel c is stacked over the pillar inner panel f at the pillar portion. In addition, the overlapping part of the roof side rail inner panel c and the pillar inner panel f in this pillar part is as follows:
Since this is the part that is exposed to the passenger compartment, it is usually not spot welded.

[Problems to be solved by the invention] By the way, after the assembly process of each member of the vehicle body is completed, the painting process begins. In recent years, in this painting process, in order to shorten the painting time and achieve rust prevention down to the details of the car body, an undercoating method has been adopted in which the entire car body is immersed in a paint tank and then taken out from the tank and left to dry. taken. As mentioned above, the painting method by dipping into the paint tank has the advantage that the paint is evenly distributed to every corner of the car body. There is a problem in that paint that has entered the cross-sectional structure is difficult to remove. Therefore, a suitable paint removal hole is usually provided in the closed cross-sectional structure, and measures are taken to ensure that the paint can quickly escape from the hole. However, due to the structure, there is a slight gap between the overlapping portion of the pillar inner panel and the roof side rail inner panel, and the lower edge of the roof side inner panel that overlaps the pillar inner panel is straight, so the vehicle body After the paint is removed from the paint tank, the paint remaining inside the roof side rail gradually drips out along the inner surface of the pillar from the lower edge of the roof side rail inner panel that overlaps the pillar inner panel, as shown in Figure 5, and hardens. There was a problem. Since this area can be exposed to the interior of the car, even after the final coat is applied, the dripping and hardened paint will remain as an unnatural bulge, which will significantly spoil the appearance of the inner surface of the pillar. This idea was devised under the above-mentioned circumstances, and the paint remaining inside the roof side rail after being immersed in the paint tank is leaked from the overlapping part of the pillar inner panel and the roof side rail inner panel to the inner surface of the pillar. The object of the present invention is to provide an improved upper structure for an automobile pillar so that it does not sag along the pillar.

[Means to solve the problem]

In order to solve the above problems, this invention takes the following technical measures. That is, the present invention provides a roof side rail in which a roof side rail inner panel and a roof side rail outer panel are joined at their respective upper and lower edges to form a closed cross-section structure, whereas a pillar inner panel and a pillar outer panel are connected at each front and rear edge. The upper part of the pillar, which has a closed cross-section structure by joining the flanges,
The upper part of the pillar is formed by extending the upper part of the pillar inner panel into the roof side rail, and connecting a part of the roof side rail inner panel to overlap the surface of the extended pillar inner panel. In the structure, the lower edge of the portion of the roof side rail inner panel that overlaps with the pillar inner panel,
It is characterized in that the positions of the front and rear flange parts of the pillar inner panel or both end parts overlapping the vicinity thereof are formed to be lower than the position of the central part in the front and rear direction.

[Effect]

If the vehicle body is kept horizontal after being removed from the electrocoating paint tank, the paint remaining inside the roof side rail will seep into the vehicle interior through the gap between the overlapping portion of the pillar inner panel and the roof side rail inner panel. However, in the present invention, the lower edge of the portion of the roof side rail inner panel that overlaps with the pillar inner panel is located at the center of the front and rear flange portions of the pillar inner panel, or at both ends that overlap with the vicinity thereof. It is formed so that it is lower than the position of. Therefore, even if the paint oozes out as described above, the paint will not drip from the central lower edge of the overlapping portion of the roof side rail outer panel along the inner surface of the pillar, but will be guided to the lower edge of the overlapping portion. It flows to both ends. The paint that oozes out as described above will harden on both ends of the overlapping part of the roof side rail inner panel, or on the door opening flange or window opening flange, but that part will be covered by the door opening trim etc. Therefore, the paint that hardens into drips will not deteriorate the appearance of the passenger compartment at all.

【effect】

As described above, the present invention has an extremely simple configuration that effectively prevents paint remaining inside the roof side rail from dripping out along the inner surface of the pillar from the overlapping part of the pillar inner panel and the roof side rail inner panel. be able to.

[Explanation of Examples]

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. In the embodiment, the present invention is applied to a joint between a center pillar and a roof side rail of an automobile. FIG. 1 is an overall perspective view of an automobile in which the structure of the present invention is adopted, and FIG. 2 is a roof side view of the upper part of the center pillar (the part indicated by the symbol A in FIG. 1) of the automobile shown in FIG. FIG. 2 is an enlarged cross-sectional perspective view of the rail cut away and seen from the passenger compartment side. The roof side rail 1 includes an upper edge 2a and a lower edge 2 of the roof side rail outer panel 2.
b, and the upper edge 3a and lower edge 3b of the roof side rail inner panel 3 are spot welded to form a closed cross-sectional structure. Then, both side edges of the roof panel 7 are welded to the roof drip channel 8 welded to the sides of the roof side rail 1. On the other hand, the center pillar 4 is connected to the roof side rail 1 so as to extend downward from a proper middle part thereof, and as shown in FIG. The center pillar outer panel 5 formed,
The center pillar inner panel 6 is provided to face the inner side of the center pillar inner panel 6. The flanges formed on the front and rear edges 5b, 6b of the center pillar outer panel 5 and center pillar inner panel 6 are overlapped and welded together to form a pillar main body with a closed cross-section structure. The upper part 6a extends inside the roof side rail 1 as shown in FIG. 3, and
The roof side rails 1 are connected by being sandwiched between the upper overlapping welds. Further, the lower edge 3c of the overlapping portion 3' of the roof side rail inner panel 3, which overlaps with the center pillar inner panel 6, is simply overlapped on the surface of the center pillar inner panel 6 in a tight manner. As clearly shown in FIG. 2, the lower edge 3c of the overlapping portion 3' of the roof side rail inner panel 3 with respect to the center pillar inner panel 6
is cut out in an arc shape, and the front and rear end portions 3d, which overlap each flange portion of the pillar inner panel or the vicinity thereof, are located below the center portion 3e. Therefore, after immersing the vehicle body in a paint tank for electrodeposition coating and taking it out, the roof side rail 1
Even if the paint remaining inside seeps out from the lower edge 3c of the overlapping part 3', it will not drip downward from the central part 3e of the overlapping part 3' as in the conventional example.
Both ends 3d of the overlapping portion 3' along the arcuate edge
It is guided up to the point where it accumulates or sag.
However, since both end portions 3d of the overlapping portion constitute the door opening flange and are covered with a door trim or the like, there is no problem even if the electrodepositing paint is cured in the form of drips. Of course, the scope of the present invention is not limited to the embodiments described above. The above-mentioned embodiment is based on a roof support structure in which a roof panel is supported through a roof drip channel with respect to a roof side rail, but as in the structure shown in FIG. The present invention can be applied in exactly the same way to a structure in which the roof side rail outer panel is exposed on the outer surface of the roof as a sub-roof, and both side edges of the main roof are welded to the overlapping part of the sub-roof and the roof side rail inner panel. can. Also,
Although the embodiment is an example in which the present invention is applied to the upper structure of a center pillar, the present invention can also be applied to the upper structure of a front pillar or a quarter pillar. Furthermore, in the above embodiment, the lower edge of the overlapping portion of the roof side rail inner panel is cut out in an arc shape as a means for lowering both ends of the lower edge of the overlapping portion with respect to the center portion. Of course, the cutout may be in an inverted U-shape or in an inverted V-shape.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of an automobile to which the automobile pillar upper structure of the present invention is applied, Fig. 2 is an enlarged sectional perspective view of section A in Fig. 1 viewed from inside the vehicle, and Fig. 3 is FIG. 4 is a cross-sectional view taken along the line - in the figure, FIG. 4 is a view corresponding to FIG. 2 of another embodiment of the present invention, and FIG. 5 is an explanatory view of a conventional example. 1... Roof side rail, 2... Roof side rail outer panel, 3... Roof side rail inner panel, 3'... Overlapping part, 3c... Lower edge (of the overlapping part), 3d... (Lower edge of the overlapping part) ) both ends, 3e... central part (of lower edge of polymerization), 4... pillar (center pillar), 5... pillar outer panel, 6... pillar inner panel.

Claims (1)

[Scope of Claim for Utility Model Registration] For a roof side rail that has a closed cross-section structure by joining a roof side rail inner panel and a roof side rail outer panel at their respective upper and lower edges, a pillar inner panel and a pillar outer panel are connected at each front and rear ends. The upper part of the pillar, which has a closed cross-sectional structure by joining the flange parts of the edges, extends the upper part of the pillar inner panel into the roof side rail, and the roof is attached to the surface of the extended pillar inner panel. In the upper structure of a pillar formed by connecting a part of the side rail inner panel in an overlapping manner, the lower edge of the portion of the roof side rail inner panel that overlaps with the pillar inner panel,
An upper structure for an automobile pillar, characterized in that the front and rear flange portions of the pillar inner panel or the positions of both end portions overlapping the vicinity thereof are formed to be lower than the position of the center portion in the front-rear direction.