JP3736013B2 - Body panel structure and body panel assembly method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle body panel structure on a rear side surface of a vehicle body having a back door, and a method for assembling the vehicle body panel.
[0002]
[Prior art]
Examples of this type of vehicle body panel structure include those shown in FIGS. 5 to 8 (see the Honda Odyssey New Vehicle Manual). 5 is a perspective view showing a vehicle body of an automobile having a back door, FIG. 6 is an exploded perspective view of a vehicle body panel structure on the rear side surface of the vehicle body, and FIG. 7 is a view taken along the line VII-VII in FIG. FIG. 8 is a sectional view taken along line VIII-VIII in FIG.
[0003]
First, as shown in FIGS. 5 and 6, the rear part 3 of the vehicle body 1, that is, the roof side rail 5, the back pillar 7 as the rearmost pillar, the rear pillar 9 and the rear wheel house 11 as the front pillars of the back pillar 7. The inner panel 13 and the outer panel 15 are included. The inner panel 13 and the outer panel 15 are provided with edge abutting flanges 13a and 15a on substantially the entire edges, and the edge abutting flanges 13a and 15a abut against each other as shown in FIGS. Alternatively, the inner panel 13 and the outer panel 15 are joined by being abutted against the other panel surface and spot-welded. At the position of the back pillar 7, the outer panel 15 is provided with a reinforcing portion 17 that protrudes rearward from the edge abutting flange 15 a as shown in FIG. 7. A reinforcing panel 19 is integrally coupled to the inner panel 13 at a portion corresponding to the reinforcing portion 17. Therefore, the portion of the back pillar 7 is reinforced by the reinforcing portion 17 and the reinforcing panel 19, and the back door opening rigidity can be ensured appropriately, and the crushing strength at the time of a rear collision can be increased.
[0004]
At the arch portion 21 of the rear wheel house 11, the edge abutting flanges 13a and 15a of the inner panel 13 and the outer panel 15 are directed inward in the vehicle width direction as shown in the cross section of FIG. Combined by etc.
[0005]
[Problems to be solved by the invention]
By the way, in the case of the panel structure as described above, there is a limit in improving the strength in the portion of the back pillar 7, which must be secured by increasing the thickness of the panel, which may increase the weight. That is, as described above, the reinforcing panel 19 is provided on the inner panel 13 at the back pillar 7 to reinforce, but the reinforcing panel 19 may be sized so as to enter the reinforcing portion 17 on the outer panel 15 side. This is because the closed cross-sectional structure formed by the reinforcing panel 19 and the inner panel 13 has to be small.
[0006]
The reason why the reinforcing panel 19 cannot be formed into the reinforcing portion 17 is due to the assembly of the inner panel 13 to the outer panel 15. That is, as shown in FIG. 8, the edge abutting flanges 13a and 15a are directed inward in the vehicle width direction in the rear wheel house 11, so that the abutting operation of the inner panel 13 with respect to the outer panel 15 is indicated by the arrow A in FIG. However, when this is viewed in FIG. 7, the inner panel 13 at the back pillar 7 is moved from the state shown by the two-dot chain line in the direction of arrow A, and the reinforcing panel 19 is moved to the outer side. This is because it cannot protrude rearward from the portion 23 of the panel 15.
[0007]
It is an object of the present invention to provide a vehicle body panel structure capable of reducing the weight while being able to improve the strength of the rearmost pillar.
[0008]
[Means for Solving the Problems]
The invention of claim 1 includes an inner panel and an outer panel including a roof side rail of a vehicle body having a back door, a rearmost pillar, a front pillar of the pillar, and a rear wheel house. The edge abutting flanges of the panel and the outer panel are coupled, and the outer panel is provided with a reinforcing portion that protrudes rearward from the edge abutting flange at the rearmost pillar position. In the vehicle body panel structure projecting inward in the vehicle width direction, the edge abutting flange of the arch portion includes the inner panel, an inner panel rear portion including the rearmost pillar, the front pillar, and a rear wheel. Combined as a split structure with the front part of the inner panel including the house, the front part of the pillar at the rear part is connected to the rear part of the inner panel. Characterized in that a closed cross-section portion to be fitted to the reinforcing portion of the outer panel.
[0009]
Therefore, since the inner panel is joined as a split structure of the inner panel rear part including the rearmost pillar and the inner panel front part including the front pillar and the rear wheel house, the inner panel rear part is connected to the outer panel. Since the abutting direction is not restricted by the direction of the edge abutting flange of the wheel house, a closed cross-sectional portion that fits in the reinforcing portion of the outer panel is provided on the inner panel rear portion at the rearmost pillar portion. Thus, the rear portion of the inner panel can be assembled to the outer panel.
[0010]
A second aspect of the invention is the vehicle body panel structure according to the first aspect, wherein the closed section of the inner panel rear portion is formed by coupling a reinforcing panel to the inner panel rear portion.
[0011]
Therefore, in addition to the operation of the invention of claim 1, the closed cross section of the inner panel rear portion can be easily formed by the reinforcing panel.
[0012]
A third aspect of the present invention is the vehicle body panel structure according to the second aspect, wherein the reinforcing panel is provided above and below the rearmost pillar.
[0013]
Therefore, in addition to the operation of the invention of claim 2, since the reinforcing panel is provided over the top and bottom of the last pillar, substantially the whole of the last pillar can be reinforced.
[0014]
A fourth aspect of the invention is the vehicle body panel structure according to any one of the first to third aspects, wherein the coupling of the inner panel front portion and the inner panel rear portion is performed at the portion of the roof side rail. The mounting bracket of the roof rack rail is fixed over the part.
[0015]
Therefore, in addition to the operation of any one of the first to third aspects, the joint portion between the inner panel front portion and the inner panel rear portion can be reinforced by the roof rack rail mounting bracket at the roof side rail portion.
[0016]
A fifth aspect of the present invention is the vehicle body panel structure according to any one of the first to fourth aspects, wherein the inner panel rear portion is formed thicker than the inner panel front portion.
[0017]
Therefore, in addition to the operation of any one of the first to fourth aspects, only the inner panel rear portion can be formed thick to reinforce the rearmost pillar portion.
[0018]
The invention according to claim 6 includes an inner panel and an outer panel including a roof side rail of a vehicle body having a back door, a rearmost pillar, a front pillar of the pillar, and a rear wheel house. The edge abutting flanges of the panel and the outer panel are coupled, and the outer panel is provided with a reinforcing portion that protrudes rearward from the edge abutting flange at the rearmost pillar position. In the vehicle body panel structure projecting inward in the vehicle width direction, the edge abutting flange of the arch portion includes the inner panel, an inner panel rear portion including the rearmost pillar, the front pillar, and a rear wheel. Combined as a split structure with the front part of the inner panel including the house, the front part of the pillar at the rear part is connected to the rear part of the inner panel. A closed cross-section portion that fits within a reinforcing portion of the outer panel is provided, and an inner panel rear portion that is provided with the closed cross-section portion in advance is coupled to the outer panel, and then coupled to the inner panel front portion. .
[0019]
Therefore, after the inner panel rear part provided with the closed cross section in advance is coupled to the outer panel, the inner panel front part can be coupled to the outer panel.
[0020]
【The invention's effect】
According to the first aspect of the present invention, the inner panel can be provided with a closed cross-section portion that fits into the reinforcing portion of the outer panel at the rearmost pillar portion, and the reinforcement of the rearmost pillar portion can be improved. Moreover, since the inner panel is coupled as a divided structure of the inner panel front portion and the inner panel rear portion, the inner panel can be easily coupled to the outer panel.
[0021]
In the invention of claim 2, in addition to the effect of the invention of claim 1, the closed cross section of the inner panel rear part can be easily formed by the reinforcing panel, and the manufacture of the vehicle body panel is facilitated.
[0022]
In the invention of claim 3, in addition to the effect of the invention of claim 2, the last pillar can be sufficiently reinforced by the reinforcing panels provided above and below the last pillar.
[0023]
In the invention of claim 4, in addition to the effect of any one of claims 1 to 3, the division of the inner panel front part having the divided structure and the inner panel rear part is made using the mounting bracket of the roof rack rail. It can be done firmly.
[0024]
In the invention of claim 5, in addition to the effects of any one of claims 1 to 4, only the rear part of the inner panel is formed thick to reduce the overall weight, while reinforcing the periphery of the last pillar part. Can be done.
[0025]
According to the sixth aspect of the present invention, the outer panel, the inner panel front portion, and the inner panel rear portion can be connected without difficulty, and the vehicle body panel can be easily assembled.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 relate to an embodiment of the present invention, FIG. 1 is an exploded perspective view of a vehicle body panel to which an embodiment of the present invention is applied, and FIG. 2 is a vehicle body to which an embodiment of the present invention is applied. FIG. 3 is a cross-sectional view corresponding to the view taken along line III-III in FIG. 1, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. Components corresponding to those shown in FIGS. 5 to 8 are denoted by the same reference numerals, and redundant description is omitted.
[0027]
1 shows a vehicle body panel structure in the rear portion 27 of the vehicle body 25 partially shown in FIG. 2, and the vehicle body panel structure of the rear portion 27 as shown in FIGS. 1 and 2 is composed of an inner panel 13 and an outer panel 15 as described above. The subject is configured.
[0028]
On the other hand, in the embodiment of the present invention, the inner panel 13 has a divided structure of an inner panel rear portion 29 including the back pillar 7 and an inner panel front portion 31 including the rear pillar 9 and the rear wheel house 11. That is, the inner panel 13 is divided into an inner panel rear portion 29 and an inner panel front portion 31 at the front and rear intermediate portions of the roof side rail inner 33 and the rear fender inner 35, and the divided portion coupling flanges 33a, 33b, and 35a, respectively. , 35b are provided. In the present embodiment, the inner panel rear portion 29 is formed relatively thick relative to the inner panel front portion 31 and the outer panel 15.
[0029]
A reinforcing panel 37 is coupled to the inner panel rear portion 29. The reinforcing panel 37 has a shape corresponding to the inner panel rear portion 29, and is provided over the back pillar 7. The reinforcing panel 37 is provided with a reinforcing panel edge flange 39, which is joined to the edge abutting flange 13a of the inner panel rear part 29 by spot welding or the like, and has a large closed section 41 as shown in FIG. It is composed. The closed cross-section portion 41 is configured to fit into the reinforcing portion 17 as shown in FIG.
[0030]
Bolt insertion holes 43 are provided in the split part coupling flanges 33 a and 33 b in the roof side rail inner 33 of the inner panel rear part 29 and the inner panel front part 31, respectively. In addition, a weld nut 44 is provided on the split portion coupling flange 33b. Therefore, after the divided portion coupling flanges 33a and 33b are overlapped, the roof rack rail mounting bracket 45 is fastened and fixed by the bolt nuts 47 and 44 as shown in FIGS. 29 and the inner panel front part 31 are firmly connected.
[0031]
The upper bracket 49 is fastened and fixed to the mounting bracket 45 with bolts and nuts 51 as shown in FIGS. 2 and 4, and the bolts 55 are fastened to the weld nuts 53 of the upper brackets 49 so that the rear of the roof rack rail 57. The end is fixed to the roof panel 59.
[0032]
In the rear pillar 9, a reinforcing panel 61 is fixed to the inner panel front portion 31 by spot welding or the like, and a mounting bracket for attaching the inner panel front portion 31 and the reinforcing panel 61 to an intermediate portion of the roof rack rail 57. It is fastened together with 63 fastenings. Therefore, the reinforcement panel 61 is firmly coupled to the inner panel front portion 31.
[0033]
In such a panel structure, the assembly is performed as follows. First, the reinforcing panel 37 is coupled to the inner panel rear portion 29 in advance to form the closed cross-section portion 41. In this connection, the edge abutting flange 13a and the reinforcing panel edge flange 39 are abutted and connected by spot welding. Further, the reinforcing panel 61 is coupled to the inner panel front portion 31 by spot welding.
[0034]
Next, the outer panel 15 is conveyed on the line with the inner surface side to which the inner panel 13 is coupled facing upward. First, the inner panel rear portion 29 is moved from the two-dot chain line shown in FIG. 3 to the outer panel 15 as shown by the arrow B, and the closed cross-section portion 41 is changed to the reinforcing portion 17 of the outer panel 15. Fit. Then, the edge abutting flange 13a of the inner panel rear portion 29 is coupled to the edge abutting flange 15a of the outer panel 15 by spot welding.
[0035]
Next, the inner panel front portion 31 is aligned from above the outer panel 15 orthogonal to the arrow B in FIG. 3 and includes other edge bumps 13a, 15a in the arch portion 21 of the rear wheel house 11, and other edge bumps. The flanges 13a and 15a are joined by spot welding or the like. In addition, the division | segmentation part coupling flange 33a, 33b, 35a, 35b will be in the state which overlaps.
[0036]
With respect to such a panel structure, the mounting bracket 45 is fastened and fixed by bolt nuts 47 and 44, and the mounting bracket 63 is fastened and fixed by bolt nuts.
[0037]
And since it is the assembly method of the above vehicle body panels, since the big closed cross-section part 41 can be comprised in the part of the back pillar 7 of the inner panel 13, the intensity | strength of the back pillar 7 periphery can be improved more. it can.
[0038]
Moreover, since only the inner panel rear part 29 is formed thick, weight reduction can be achieved as a whole. However, the entire structure including the inner panel rear portion 29 can be formed with a uniform thickness.
[0039]
Further, when the inner panel rear portion 29 is assembled, the inner panel rear portion 29 is moved from the front side of the vehicle body to the outer side without being restricted by the joining direction of the edge abutting flanges 13a and 15a in the arch portion 21 of the rear wheel house 11. Since it can assemble | attach to the panel 15, the assembly | attachment improvement can be aimed at as a whole.
[0040]
Further, after the assembly, the inner panel rear portion 29 and the split portion coupling flanges 33b, 33a of the inner panel front portion 31 are fixed by the mounting bracket 45 for mounting the roof rack rail 57, so that the coupling strength can be improved. . Moreover, by setting the weld nut 44 on the inner panel rear portion 29, a special part for setting the weld nad 44 for fixing the mounting bracket 45 becomes unnecessary, the number of parts is reduced, and the assembly is facilitated. It is also possible to reduce the weight.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view according to an embodiment of the present invention.
FIG. 2 is a perspective view on the roof side of a vehicle body to which an embodiment of the present invention is applied.
3 is a cross-sectional view taken along line III-III in FIG.
4 is a cross-sectional view taken along the line IV-IV in FIG. 2;
FIG. 5 is a perspective view of a vehicle body according to a conventional example.
FIG. 6 is an exploded perspective view according to a conventional example.
7 is a cross-sectional view taken along line VII-VII in FIG.
8 is a cross-sectional view taken along line VIII-VIII in FIG.
[Explanation of symbols]
5 Roof side rail 7 Back pillar (last pillar)
9 Rear pillar (front pillar)
11 Rear wheel house 13 Inner panel 13a Edge abutting flange 15 Outer panel 15a Edge abutting flange 21 Arch part 25 Car body 27 Rear part 29 Inner panel rear part 31 Inner panel front part 37 Reinforcement panel 41 Closed section 45 Mounting bracket 57 Roof rack rail

Claims (6)

A roof side rail of a vehicle body having a back door, a rearmost pillar, a pillar on the front side of the pillar, and a rear wheel house, and an inner panel and an outer panel, each edge of the inner panel and the outer panel The outer panel is provided with a reinforcing portion that protrudes toward the rear of the vehicle body from the edge abutting flange at the pillar position of the rearmost portion. This flange is a vehicle body panel structure projecting inward in the vehicle width direction.
The inner panel is combined as a split structure of an inner panel rear part including the rearmost pillar and an inner panel front part including the front pillar and a rear wheel house,
A vehicle body panel structure characterized in that a closed cross-sectional portion that fits into a reinforcing portion of the outer panel is provided in the rear portion of the inner panel at the rearmost pillar portion. The vehicle body panel structure according to claim 1,
The vehicle body panel structure characterized in that the closed section of the inner panel rear portion is formed by coupling a reinforcing panel to the inner panel rear portion. The vehicle body panel structure according to claim 2,
The vehicle body panel structure according to claim 1, wherein the reinforcing panel is provided above and below the rearmost pillar. The vehicle body panel structure according to any one of claims 1 to 3,
A vehicle body panel structure characterized in that a roof rack rail mounting bracket is fixed to a joint portion between the inner panel front portion and the inner panel rear portion at the roof side rail portion over the joint portion. The vehicle body panel structure according to any one of claims 1 to 4,
The vehicle body panel structure is characterized in that the inner panel rear portion is formed thicker than the inner panel front portion. A roof side rail of a vehicle body having a back door, a rearmost pillar, a pillar on the front side of the pillar, and a rear wheel house, and an inner panel and an outer panel, each edge of the inner panel and the outer panel The outer panel is provided with a reinforcing portion that protrudes toward the rear of the vehicle body from the edge abutting flange at the pillar position of the rearmost portion. This flange is a vehicle body panel structure projecting inward in the vehicle width direction.
The inner panel is combined as a split structure of an inner panel rear part including the rearmost pillar and an inner panel front part including the front pillar and a rear wheel house,
The inner panel rear portion at the rearmost pillar portion is provided with a closed cross-section portion that fits into the reinforcing portion of the outer panel,
A method for assembling a vehicle body panel, wherein an inner panel rear portion provided with the closed cross-section portion in advance is coupled to the outer panel, and then coupled to the inner panel front portion.

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