JP2002211442A - Panel connection structure of body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel connection structure of a body capable of further increasing a connection strength near the opening part of a rear gate. SOLUTION: The rear part of a flange 10d at the side edge part of a roof panel 10 is formed integrally with a rear roof rail part 10d by bending, and a flange 11b at the upper edge part of a side panel 11 is formed along the flange 10d by bending. The shape of the top surface part 13c of a reinforcement D pillar 13 is formed along the superimposed part of the flanges 10d and 11b by bending, and spot-welded to the top surface part 13c at a plurality of positions along the superimposed part of the flanges 10d and 11b. Thus, the welding connection of the roof panel 10 and side panel 11 to the reinforcement D pillar 13 near the opening part 5 of the rear gate can be performed with high density in a wide area.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body panel joining structure having a rear gate opening.

[0002]

2. Description of the Related Art A panel joint structure near a rear gate opening of a wagon or the like having a rear gate at a rear portion of a vehicle body is disclosed in, for example, Japanese Patent Application Laid-Open No. 2000-335443. That is, according to the above prior art, a flange (drip channel) is provided at a side edge portion of a roof panel, and a rear roof rail portion (roof rail) is provided at a rear portion. The frame is joined to the top surface of the skeletal member (reinforcing member) by spot welding or the like in a state of being superimposed on a flange (extending portion) provided at the upper edge of the panel, and the rear roof rail portion is provided with the reinforcing member and the inner panel. And is joined by spot welding or the like in a state of being superimposed on a flange provided at the rear end of the sheet.

[0003]

By the way, in the case of a vehicle body such as a wagon vehicle, the rear gate opening is generally large, so that high strength is required. In particular, since a relatively large stress acts on the vicinity of the corner portion of the rear gate opening during running or the like, it is desirable to make the panel bonding strength at this portion stronger.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle body panel joining structure capable of further improving the joining strength near the rear gate opening.

[0005]

According to a first aspect of the present invention, there is provided a panel joining structure for a vehicle body, wherein a rear end portion of a flange formed integrally with a rear roof rail portion is formed on a side edge portion. A roof panel, a side panel having an upper edge bent along the flange of the roof panel side edge and capable of being overlapped with the flange, the roof panel and the side panel closer to the rear side of the vehicle body A skeleton member for supporting the skeleton member, the top surface of the skeleton member is bent in a shape along the rear shape of the overlapping portion of the flange of the roof panel and the flange of the side panel, and the roof panel and the The side panel is welded to the top surface of the skeletal member at a plurality of locations along the overlapping portion.

According to a second aspect of the present invention, there is provided a panel joining structure for a vehicle body, wherein a side roof rail is formed between the roof panel and the side panel. A welded portion of the side panel flange to the top surface portion is arranged on a straight line along the side roof rail.

According to a third aspect of the present invention, there is provided a panel joining structure for a vehicle body according to the first or second aspect, wherein the inner member is joined to the skeletal member and the skeletal member on the vehicle cabin side. The reinforcing member forms a closed cross section between the skeletal member and the inner panel.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a sectional view taken along line II of FIG. 5, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is an exploded perspective view of each panel, and FIG. FIG. 5 is a perspective view of a rear portion of the vehicle body as viewed from the direction A.

In FIG. 5, reference numeral 1 indicates a vehicle body of a wagon as an example of a vehicle body having a rear gate opening at a rear portion. Rear roof rails 3 are formed on the left and right sides of the roof 2 of the vehicle body 1, and a rear gate opening 5 is opened at the rear of the D pillar 4.

In the vicinity of the D pillar 4 of the vehicle body 1, the upper edge of the side panel 11 is connected to the side edge of the roof panel 10, and the roof panel 10 and the inner side of the side panel 11 (toward the passenger compartment). Is provided with a separator inner panel 12 as an inner panel. Further, inside a space surrounded by the roof panel 10, the side panel 11, and the separator inner panel 12, a reinforcement D pillar 13 as a frame member to which these panels are connected is provided. Further, a reinforcing member 14 is provided between the separator inner panel 12 and the reinforcement D pillar 13.

Each member will be described in detail with reference to FIG.
As shown in FIG. 5, steps 10a and 10b are formed at the rear and side of the roof panel 10, and the edge of the step 10a extends rearward and is bent into a plurality of steps to form a rear roof rail 10c. It is formed integrally. Also, the step 10
The edge of b extends laterally (outside of the vehicle body 1), and this portion is formed as a flange 10d connected to the side panel 11. Here, the rear portion of the flange 10d extends rearward and is bent continuously and integrally with the rear roof rail portion 10c.

A step 11a is formed at the upper edge of the side panel 11 so as to face the step 10b of the roof panel 10.
The edge of the step portion 11a is extended to the side (inside of the vehicle body 1), and the rear portion is bent to form a flange 11b along the flange 10d. The front edge of the side panel 11 has a flange 1 along the shape of the window frame of the vehicle body 1.
1c, and a flange 1 on the rear edge.
1d is provided.

Here, the flange 11b is connected to the flange 10d.
When these are superimposed, a side roof rail 3 is formed between the step portion 10b of the roof panel 10 and the step portion 11a of the side panel 11.

A flange 12a facing the flange 11c of the side panel 11 is formed on the front edge of the separator inner panel 12 along the shape of the window frame of the vehicle body 1, and a flange 11d is located on the rear edge thereof. Provided flange 12b. The upper end of the flange 12b is curved substantially horizontally, and the rear end of the curved portion is bent upward to form a flange 12c facing the rear end of the flange 10d of the roof panel 10. The upper portion of the separator inner panel 12 has a panel shape branched into the front and the inside of the vehicle body 1, and a flange 12d facing the flange 10d is provided inside the branch portion. Here, reference numeral 12e in the figure denotes a hole for inserting a welding jig.

At the front edge of the reinforcement D pillar 13,
A flange 13a facing the flanges 11c and 12a is provided along the shape of the window frame of the vehicle body 1, and a rear edge portion is provided with a flange 13b facing the flanges 11d and 12b. In addition, on the upper portion of the reinforcement D pillar 13, the upper end of the reinforcement D pillar 13 and the upper end of the flange 13b are curved in a substantially horizontal direction to form a top surface portion 13c. The top surface portion 13c is opposed to a portion near the rear portion of the overlapping portion of the flange 10d and the flange 11b, and is bent back and forth along the rear shape of the flange 11b.

A flange 14a is provided at the lower edge of the reinforcing member 14.
Are formed, and the upper edge portion has a reinforcement D
Flange 1 facing inner surface of top 13c of pillar 13
4b is formed. The reinforcing member 14 is disposed near the branching portion above the separator inner panel 12 along the front-rear direction of the vehicle body 1. When the flange 14 a is fixed to the separator inner panel 12,
The front end of b is connected to the flange 12d along the side roof rail 3. At this time, the flange 14b is configured to face the inner surface of the top surface 13c of the reinforcement D pillar 13, so that the flange 14b is
It is bent along the inner surface shape of the top surface portion 13c.

As shown in FIGS. 1 and 2, the roof panel 10
A side panel 11 is disposed on the side of the
The flange 11b is superimposed on the lower surface of d. A separator inner panel 12 is disposed inside the roof panel 10 and the side panel 11 so as to face each other.
A flange 12d is superimposed on the lower surface of 1b, and a flange 12c is superimposed on the rear end of the flange 11b. A reinforcement D pillar 13 is provided in an internal space surrounded by the roof panel 10, the side panel 11, and the separator inner panel 12.
b, the top surface portion 13c is superimposed on the lower surface, the flanges 11c, 12a are superimposed on both surfaces of the flange 13a, and the flanges 11d, 1d are further disposed on both surfaces of the flange 13b.
2b is superimposed (not shown). Further, a reinforcing member 14 is provided between the separator inner panel 12 and the reinforcement D pillar 13, and the separator inner panel 1
2, a flange 14a is superimposed on the inner surface of the top surface 13c. At this time, the reinforcing member 14 forms a closed cross section between the separator inner panel 12 and the reinforcement D pillar 13 as shown in FIG.

The overlapping portions of the above members are connected to each other by spot welding. Here, as shown in FIG. 2, in the internal space surrounded by the roof panel 10, the side panel 11, and the separator inner panel 12, the flange 10 d and the flange 10 d are sequentially arranged on the straight line along the side roof rail 3 from the front. 11b and top 1
Welds 20, 21 in which spot 3c and flange 14b are integrally spot welded, and weld 2 in which spots of flange 10d, flange 11b, and top face 13c are integrally spot welded.
2 and 23 are formed. In addition, these welding parts 2
Steps 0 to 23 are performed by inserting a welding jig through the hole 12e.

A weld 24 is formed at the straight rear end along the side roof rail 3 by spot welding the flange 10d, the flange 11b, and the flange 12c integrally.

According to this embodiment, the rear portion of the flange 10d at the side edge of the roof panel 10 is formed integrally with the rear roof rail portion 10d, and the flange 11b at the upper edge of the side panel 11 is connected to the flange 10d. Along the top surface 1 of the reinforcement D pillar 13.
3c is bent in a shape along the overlapping portion of the flanges 10d and 11b, and spot-welded to the top surface portion 13c at a plurality of locations along the overlapping portion of the flanges 10d and 11b. Reinforcing D pillar 13 for roof panel 10 and side panel 11
Welding can be performed over a wide range with high density, and the joining strength of these can be improved.

In other words, the bonding strength of each member near the corner of the rear gate opening 5 where a relatively large stress acts can be improved, so that the strength of the rear gate opening 5 can be improved.

Also, the welding portion 2 of the flanges 10d and 11b
By arranging 0 to 24 on a straight line along the side roof rail 3, more effective joining strength can be improved, and workability of welding work such as spot welding can be improved. Further, the welded portion 20-
By arranging 23 on a straight line, the number of holes 12e for inserting a welding jig can be set small, and a decrease in the strength of the separator inner panel 12 due to the holes 12e can be reduced.

A reinforcing member 14 is provided between the separator inner panel 12 and the reinforcement D pillar 13, and a closed cross section is formed between the separator inner panel 12 and the reinforcement D pillar 13 by the reinforcement member 14. Since the strength of the reinforcement D pillar 13 is improved and twisting due to the stress acting on the rear gate opening 5 can be prevented, the load applied to the welded portions 20 to 24 can be reduced, and The joining strength of the members can be further improved.

In this case, in particular, by disposing the flange 14b of the reinforcing member 14 along the overlapping portion of the flanges 10d and 11b (that is, along the straight line of the side roof rail 3) on the inner surface of the top surface portion 13c, It is possible to more effectively improve the bonding strength.

[0025]

As described above, according to the present invention, the shape of the top surface of the skeletal member is bent so as to conform to the shape of the rear part of the overlap between the roof panel flange and the side panel flange. By welding the roof panel and the side panel to the top surface of the skeletal member at a plurality of locations along the overlapped portion, the roof panel and the side panel can be welded to the skeletal member over a wide range, and near the rear gate opening. Can be improved in bonding strength.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along the line II of FIG.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is an exploded perspective view of each panel.

FIG. 4 is an arrow view of FIG. 5 viewed from a direction A.

FIG. 5 is a perspective view of a rear portion of the vehicle body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 3 Side roof rail 5 Rear gate opening 10 Roof panel 10c Rear roof rail part 10d Flange 10d Rear roof rail part 11 Side panel 11b Flange 12 Separator inner panel (inner panel) 13 Reinforce D pillar (frame member) 13c Top part 14 Reinforcing member 20 to 24 welds

Claims (3)

[Claims] 1. A roof panel having a flange at a side edge having a rear part bent integrally with a rear roof rail part, and a roof panel formed by bending along a flange at a side edge part of the roof panel to be overlapped with the flange. A side panel having a flange at an upper edge portion; and a skeletal member for supporting the roof panel and the side panel near a rear side of the vehicle body, wherein a top surface of the skeletal member has a shape of a roof panel flange and the side. The roof panel and the side panel are welded to the top surface of the skeletal member at a plurality of locations along the overlapping portion by bending and forming the shape along the rear portion of the overlapping portion with the panel flange. Body panel joint structure. 2. A side roof rail is formed between the roof panel and the side panel, and a welded portion of the roof panel and a flange of the side panel to the top surface is disposed on a straight line along the side roof rail. The panel joining structure for a vehicle body according to claim 1, wherein: 3. A reinforcing member is provided between the skeletal member and an inner panel joined to the skeletal member on the vehicle cabin side, wherein the reinforcing member has a closed cross section between the skeletal member and the inner panel. The panel joining structure for a vehicle body according to claim 1 or 2, wherein the panel joining structure is formed.