JP2000185668A - Car body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car body structure capable of securely conducting spot welding of a roof side inner panel, and reducing cost without deteriorating interior appearance. SOLUTION: In a car body structure in which upper end parts of a side body outer panel 2 and a roof side inner panel 3 are jointed with each other having a reinforcement 4 between them, welding work holes 7, 8 are provided in the roof side inner panel 3 and the reinforcement 4, and a recessed part 9 protruded toward a side of the side body outer panel 2 is provided at a spot welding position between the roof side inner panel 3 and the reinforcement 4 positioned under the work holes 7, 8.

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 for welding a side body panel of an automobile.

[0002]

2. Description of the Related Art Conventionally, in the case of a side body of an automobile, parts of an outer panel and parts of an inner panel are separately assembled first, and then the assembled outer panels and the inner panels are welded together. By doing so, it is configured. However, welding may not be performed between the inner panels due to the line configuration of the factory, and as shown in FIGS. 5 and 6, when the roof side inner panel 51 is combined with the side body outer panel 52, it becomes a bag. Parts include a roof side inner panel 51 and a reinforcement 5
3 are provided with working holes 54 and 55, a spot gun 56 is inserted through the working holes 54 and 55, and the joint between the roof side inner panel 52 and the reinforcement 53 is welded to perform assembly work. I have. In the figure, 57 is a roof panel, 58 is a drip rail, 59 is a pillar inner panel, and 60 is a roof lining (molded ceiling).

[0003]

In such a conventional vehicle body structure, when welding work is performed, work holes 54, 5 are required.
Since it is necessary to insert the spot gun 56 from 5, welding work becomes difficult unless sufficient clearance is provided between the welded portion of the roof side inner panel 51 and the reinforcement 53 and the side body outer panel 52. However, due to the appearance of the interior, the roof lining 60
There is a restriction in providing a convex portion protruding toward the indoor side in a vehicle or trim. Therefore, in the conventional vehicle body structure, it was impossible to take a sufficient clearance for inserting the spot gun 56. On the other hand, if such a clearance is not sufficient, spot welding using the spot gun 56 cannot be performed. Therefore, an adhesive is used or CO ₂ welding is performed. High was invited.

The present invention has been made in view of such circumstances, and an object of the present invention is to reliably perform spot welding of a roof side inner panel without impairing the exterior appearance of an interior, thereby reducing costs. It is to provide a possible body structure.

[0005]

SUMMARY OF THE INVENTION In order to solve the problems of the prior art, according to the present invention, there is provided a vehicle body wherein upper ends of a side body outer panel and a roof side inner panel are joined with a reinforcement interposed therebetween. In the structure, a welding work hole is provided in the roof side inner panel and the reinforcement, and a spot welding portion between the roof side inner panel and the reinforcement located below the work hole is provided on the side body outer panel side. A protruding recess is provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments.

FIGS. 1 to 4 show an embodiment of a vehicle body structure according to the present invention. In the drawing, reference numeral 1 denotes a four-wheeled vehicle to which the vehicle body structure according to the present embodiment is applied, and an upper portion of a side body of the four-wheeled vehicle 1 extends in the front-rear direction of the vehicle body and is spaced apart in the vehicle width direction. And a roof side inner panel 3. The upper ends of the side body outer panel 2 and the roof side inner panel 3
As shown in FIGS. 2 and 3, each of the reinforcements 4 is bent so as to face each other and stands upright, and is joined by spot welding with an upper end of the reinforcement 4 extending in the up-down direction of the vehicle body interposed therebetween. The side is joined by spot welding to the upper end of the pillar inner panel 5 extending along the vehicle body vertical direction. That is,
The vehicle body structure according to the present embodiment has a structure that does not require a component assembling step between the inner panels first, here, the roof side inner panel 3 and the pillar inner panel 5.

As shown in FIGS. 2 to 4, welding work holes 7, 8 for inserting a spot gun 6 for performing spot welding are formed in corresponding portions of the roof side inner panel 3 and the reinforcement 4, respectively. I have. Further, the roof side inner panel 3 located below these working holes 7 and 8 is provided.
In the spot weld between the reinforcement 4 and the reinforcement 4,
A recess 9 protruding toward the side body outer panel 2 is provided. The welding joint surface 9a forming the upper wall of the concave portion 9 is inclined downward toward the side body outer panel 2 at an angle that facilitates welding, that is, moves the spot gun 6 upward from below the vehicle body. It is formed in the shape of an inclined surface in the direction. Furthermore, the welding joint surface 9
The end of a is the indoor side surface M of the roof side inner panel 3.
It is arranged so as not to protrude further into the room R side.

For this reason, the lower end of the roof side inner panel 3 corresponding to the recess 9 is bent substantially at a right angle toward the side body outer panel 2 side, and the cross section is substantially L.
It is formed in a character shape. An intermediate portion of the reinforcement 4 corresponding to the recess 9 is recessed toward the side body outer panel 2 side, upper and lower wall surfaces are inclined in directions intersecting each other, and an upper wall surface is a lower end of the roof side inner panel 3. It is configured to be placed so as to overlap the part.

On the indoor side of the roof side inner panel 3, reinforcement 4, and pillar inner panel 5, a roof lining (molded ceiling) 10 is provided along these panels, and work is performed by the roof lining 10. The holes 7, 8 and the concave portion 9 and the welded portion are covered so as not to be seen from the indoor side. In the figure, reference numeral 11 denotes a roof panel, and a lower end of the roof panel 11 is bent at a right angle, and a bottom surface of a drip rail 12 having a substantially U-shaped cross section is fixed to the lower end. The drip rail 12 is provided along the longitudinal direction of the vehicle body, and an inner side portion is joined to an outer side surface of the side body outer panel 2.

In the vehicle body structure of the four-wheeled vehicle 1 according to the embodiment of the present invention, even if the roof side inner panel 3 and the side body outer panel 2 form a bag-shaped Welding holes 7 and 8 are formed at corresponding positions of the panel 3 and the reinforcement 4, and a concave portion 9 protruding toward the side body outer panel 2 is provided at a welding point below the holes 7 and 8. And the welding joint surface 9a of the recess 9
Is a downwardly inclined surface, so that a special jig for assembling parts between the inner panels is not required, a space in the factory can be opened, and spot welding by the spot gun 6 can be performed. Adhesive or CO ₂ welding used in the conventional structure is not required, and workability of spot welding can be improved and cost can be reduced. In addition, since the end of the welded joint surface 9a forming the upper wall of the recess 9 is arranged so as not to protrude from the indoor side surface M of the roof side inner panel 3 toward the room R, the roof lining 1
0 can be prevented, and the appearance of the interior is not impaired.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical concept of the present invention. is there.

[0013]

As described above, the vehicle body structure according to the present invention has
The upper end portions of the side body outer panel and the roof side inner panel are joined with a reinforcement therebetween, and a welding work hole is provided in the roof side inner panel and the reinforcement, and a welding work hole is provided below the work hole. Since a recessed portion projecting toward the side body outer panel is provided at a spot welding position between the roof side inner panel and the reinforcement, the roof side inner panel is formed only by spot welding without impairing the appearance of the interior. Can be securely joined, using an adhesive like a conventional car body structure,
_{(2) It} is not necessary to perform welding, so that assembling workability can be improved and cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view conceptually showing a four-wheeled vehicle to which a vehicle body structure according to an embodiment of the present invention is applied.

FIG. 2 is an enlarged perspective view showing a portion A in FIG. 1;

FIG. 3 is a sectional view taken along line BB in FIG. 2;

FIG. 4 is an exploded perspective view showing a roof side inner panel, a reinforcement, and the like constituting the vehicle body structure according to the embodiment of the present invention.

FIG. 5 is a perspective view showing the vicinity of a side body outer panel and a roof side inner panel joined by a conventional vehicle body structure.

FIG. 6 is a sectional view taken along line CC in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Four-wheeled vehicle 2 Side body outer panel 3 Roof side inner panel 4 Reinforcement 5 Pillar inner panel 6 Spot gun 7,8 Welding work hole 9 Recess 9a Welding joint surface

Claims (3)

[Claims] In a vehicle body structure in which upper ends of a side body outer panel and a roof side inner panel are joined with a reinforcement interposed therebetween, welding work holes are provided in the roof side inner panel and the reinforcement. A vehicle body structure, wherein a concave portion protruding toward the side body outer panel is provided at a spot welding position between the roof side inner panel and the reinforcement positioned below the hole. 2. The vehicle body structure according to claim 1, wherein the welded joint surface forming the recess is formed in an inclined surface shape. 3. The vehicle body structure according to claim 2, wherein an inclined surface of the welding joint surface is formed to be inclined downward toward the side body outer panel.