JP2000142469A - Car body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve car body rigidity at a roof corner without causing degradation of operability or increase of number of overlapping plates. SOLUTION: An extending portion 5e for connection is formed projecting outward from a closed cross sectional part toward a roof front rail 6, on a reinforce 5c provided between a body side outer 5a and a side panel inner 5b of a joint member 5 for connecting a pillar with a roof side rail, a lower panel 6b of the roof front rail 6 is connected with the side panel inner 5b via a brace 7, an upper panel 6a of the roof front rail 6 is connected with the extending portion 5e for connection, and an operation hole 7a for a welding operation of spot welding points 5d, 5f is opened in the brace 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure, and more particularly to a coupling structure for improving rigidity of a portion where a roof rail and a pillar intersect.

[0002]

2. Description of the Related Art In general, a roof of an automobile is provided with a cross rail, which is a cross section of a roof front rail and a roof rear rail each having a box-shaped cross section, at a front end and a rear end of a roof panel, respectively. Roof side rails having a box-shaped cross section extend in the front-rear direction of the vehicle at the left and right side edges of the panel to ensure rigidity. In general, the roof has a vehicle body structure in which pillars are connected to four corners and right and left intermediate portions.

In the corners at the left and right ends of the front end of the roof panel or at the left and right ends of the rear end of the roof panel, the upper end of the pillar, the front end of the roof side rail, and the rear end The ends are joined while maintaining the box cross-sectional shape, and the left and right ends of the cross rail are joined to this joint. This structure has conventionally been as shown in FIG. That is, in the figure, 01
Is a connecting portion between the roof side rail and the pillar. The connecting portion 01 is formed by connecting the body side outer panel 02 and the body side inner panel 03. In this connecting portion 01, both the panels 02 , 03 are reinforced by connecting a reinforcement 04. The lower panel 06 of the cross rail 05, which is the roof front rail or the roof rear rail, and the body side inner panel 03 are attached to the connecting portion 01 by brace 07.
Are coupled through. The brace 07 has a work hole 08 for performing spot welding at the upper end of the joint portion 01.
Is open. In the drawing, reference numeral 09 denotes an upper panel of the cross rail 05, reference numeral 010 denotes a roof panel, and reference numeral 01 denotes a roof panel.
1 is a drip.

[0004]

However, in the above-mentioned conventional vehicle body structure, the connection of the cross rail 05 to the connection portion 01 between the roof side rail and the pillar is
Because only the lower panel 06 was connected, and the upper panel 09 and the connecting portion 01 were not connected,
There is a problem that the closed cross section is interrupted on the way, and sufficient body rigidity cannot be obtained. Further, the upper panel 09 is simply connected to each of the panels 02, 03,
In the case where four members are to be combined with each other, the members in the vehicle width direction and the members in the front-rear direction are overlapped at the same time. There was a problem that it became difficult to obtain.

The present invention has been made in view of the above-mentioned conventional problems, and does not cause deterioration in work life, does not increase the number of overlapping plates, and reduces the rigidity of the vehicle body at the corners of the roof. The aim is to improve

[0006]

In order to achieve the above object, a vehicle body structure according to the present invention comprises a roof side rail having a box-shaped cross section extending in the front-rear direction along left and right edges of a roof panel, and a roof panel. Body structure at a corner of a roof panel connecting a box-shaped cross rail extending in the vehicle width direction to a front end or a rear end of the roof panel, and the pillar and the roof side A reinforcement is provided across the closed cross section between the outer panel and the inner panel of the joint part where the rail is formed continuously, and a cross rail of the cross rail is provided on the reinforcement with the closed cross section between the outer panel and the inner panel. A lower portion of the cross rail is directly or indirectly connected to the inner panel of the connecting portion. At the same time, the upper panel of the cross rail is coupled to the coupling extension, and the lower panel at a position below the coupling extension in the coupling part and a position below the coupling position between the inner panel and the upper panel of the coupling part. The structure is characterized in that working holes are opened.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 4 is a perspective view of an automobile to which the embodiment of the present invention is applied. Four corners of a roof panel 1 are connected to a vehicle body by front pillars 2a and rear end pillars 2b, and an intermediate portion between left and right edges of the roof panel 1. Are connected to the vehicle body by a center pillar 2c and a rear pillar 2d provided with the door opening 3 interposed therebetween.

The present invention is applied to the left and right ends of the front end or the rear end of the roof panel 1, which are indicated by A or B in the drawings. Will be described.

This will be described in detail. As shown in FIG. 2, a roof side rail 4 having a box sectional shape provided along the left and right edges of the roof panel 1 and a box standing from the front end of the vehicle compartment. The front pillar 2 a having a cross-sectional shape is
Are connected so as to be integrally continuous. The connecting member 5 corresponds to a connecting portion in the claims, and is formed in a box cross-sectional shape by connecting upper and lower ends of the body side outer 5a and the side panel inner 5b. As shown in the cross-sectional view of FIG. 1, the connecting member 5 has a reinforcement 5 in a state of crossing the cross section.
c is connected. And this rain force 5c
Is provided at the upper end portion thereof with a coupling extension 5e extending outward from a spot welding point 5d with the body side outer 5a and the side panel inner 5b. Note that, in the figure, * is a spot welding point.

On the other hand, at the front end of the roof panel 1, FIG.
A roof front rail (cross rail) 6 shown in FIG. This roof front rail 6
As shown in FIG. 3, the upper panel 6a and the lower panel 6b are formed in a box cross-sectional shape, and the front edge thereof is joined to the front edge of the roof panel 1 by spot welding. The left and right ends of the roof front rail 6 are connected to the connecting member 5. That is, as shown in FIG. 1, the left and right ends of the lower panel 6b are connected to the side panel inner 5b of the connecting member 5 via the brace 7 by spot welding. Also, the upper panel 6
A connecting extension 6c protrudes from the left and right ends of the connecting member 5a (see FIG. 2), and the connecting extension 6c is connected to the joining extension 5e of the reinforcement 5c of the connecting member 5 by a spot welding point 5e.
f. The brace 7 has
A working hole 7a that enables welding at the spot welding points 5d and 5f is opened.

Further, the body side outer 5 of the connecting member 5
The drip 8 is joined to a by spot welding, and the drip 8 and the left and right edge portions of the roof panel 1 are joined by spot welding.

In the embodiment configured as described above, both the lower panel 6b and the upper panel 6a of the roof front rail 6 are connected by the connecting member 5 in which the roof side rail 4 and the front pillar 2a are continuously and integrally connected. Therefore, as compared with the conventional structure in which only the lower panel 6b is connected, the vehicle body rigidity is improved. Further, in connecting the upper panel 6a of the roof front rail 6 and the connecting member 5, a connecting extension 5e is provided on the reinforce 5c, and the connecting extension 5e and the connecting extension 6c of the upper panel 6a are spotted. Since the welding is performed, there is obtained an advantage that the number of parts is not increased and the cost is advantageous, and the side panel inner 5b, the reinforce 5c and the body side outer 5a of the connecting member 5 are connected. Work to spot weld them by assembling them into a box cross-sectional shape, and to install upper panel 6a of roof front rail 6
The work of spot welding can be performed separately from the work,
In addition to the effect that the work life is excellent, it is only necessary to stack two plates at the spot welding point 5f, and the effect that the welding strength is easily secured is obtained.

Although the embodiment has been described with reference to the drawings, the present invention is not limited to this embodiment. That is, in the embodiment, the embodiment applied to the portion A in FIG. 4 has been described, but the embodiment may be applied to the portion B in FIG.
Further, in the embodiment, the example in which the roof side rail 4 and the front pillar 2a are connected by the connecting member 5 has been described.
In this portion, for example, one of the body side outer 5a and the side panel inner 5b can be formed from a single panel from the front pillar 2a to the roof side panel 4. Further, in the embodiment, an example in which the present invention is applied to an automobile in which the roof panel 1 extends to the rear end of the vehicle has been described. However, the present invention is applied to an automobile in a form generally called a sedan. It can also be applied.

[0014]

As described above, in the vehicle body structure of the present invention, both the lower panel and the upper panel of the cross rail constituting the roof front rail or the roof rear rail are connected to the roof side rail and the front pillar. Are joined to the joint portion which is continuously joined together, so that the rigidity of the vehicle body is improved as compared with the conventional structure in which only the lower panel is joined. In addition, when adding the connection between the upper panel and the connecting portion of the cross rail, a connecting extension was provided in the reinforce, and the connecting extension and the upper panel were spot-welded, so that the number of parts for this connection was reduced. The effect that cost is advantageous without increasing is obtained. In addition, the work of connecting the outer panel, the inner panel, and the reinforcement of the connection portion and the work of connecting the upper panel of the cross rail and the reinforcement of the connection portion can be performed separately, which is excellent in work life. The effect can be obtained, and at the part where the upper panel of the cross rail and the reinforcement of the connecting part are connected, it can be completed by connecting two sheets of the plate material, and the effect of easily securing the welding strength is obtained. can get.

[Brief description of the drawings]

FIG. 1 is a sectional view (S in FIG. 2) showing a vehicle body structure according to an embodiment;
1-S1 section).

FIG. 2 is a perspective view of the embodiment.

FIG. 3 is a sectional view of the embodiment (S3-S3 section in FIG. 2);
It is.

FIG. 4 is a perspective view of an automobile to which the embodiment is applied.

FIG. 5 is a sectional view showing a conventional technique.

[Explanation of symbols]

 Reference Signs List 1 roof panel 2a front pillar 2b rear end pillar 2c center pillar 2d rear pillar 3 opening 4 roof side rail 5 coupling member 5a body side outer 5b side panel inner 5c reinforcement 5d spot welding point 5e coupling extension 5f spot welding point 6 roof Front rail 6a Upper panel 6b Lower panel 6c Connecting extension 7 Brace 7a Working hole 8 Drip

Claims (1)

[Claims] 1. A roof side rail having a box section extending in the front-rear direction along left and right edges of a roof panel, and a box section extending in a vehicle width direction at a front end or a rear end of the roof panel. A cross-rail having a cross section and a pillar having a box cross-sectional shape, and a body structure at a corner portion of a roof panel, wherein the pillar and the roof side rail are formed continuously with each other. A reinforcement is provided across the closed cross section between the cross rail, and the reinforcement has a connecting extension projecting outward in the direction of the cross rail from the closed cross section with the outer panel and the inner panel. Is directly or indirectly connected to the inner panel of the connecting portion, and the upper panel of the cross rail is connected to the inner panel of the connecting portion. A work hole is opened in the lower panel at a position below the connection extension portion, and at a position below the connection position between the inner panel and the upper panel of the connection portion in the connection portion. Car body structure.