JP2993417B2 - Connection structure of the upper part of the pillar - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting upper portions of pillars in a skeleton of a vehicle body.

[0002]

2. Description of the Related Art FIG. 4 is a perspective view showing an example of a skeletal structure of a vehicle body, FIG. 5 is a schematic view showing a skeletal structure of a main part taken along the line DD of FIG. 4, and FIG. FIG. 6B is an enlarged view of a portion C, showing a conventional coupling structure of the upper part of the pillar, and FIG.
FIG. 5A is a view as viewed in the direction of arrow E in FIG.

The skeletal structure of the vehicle body shown in FIG. 4 includes a pillar 22 extending vertically in a vehicle body side portion, a roof bow 23 extending vehicle width direction in an upper body portion, and a cross member 24 extending vehicle width direction in a lower body portion. And the like are joined by spot welding or arc welding so as to surround the whole. And for such a skeletal structure,
Light and strong enough to withstand loads in all directions are required.

[0004] In particular, in order to suppress deformation of the entire vehicle body, FIG.
Roof bow 2 forming a cross section in the vehicle width direction as shown in FIG.
3. The connection of the roof bow gusset 25, the pillar 22, and the cross member 24 is important. That is, the lower part of the pillar that connects the pillar 22 and the cross member 24 (part F in the drawing), and the upper part of the pillar that connects the pillar 22, the roof rail 21, the roof bow gusset 25, and the roof bow 23 (FIG. (G part in the middle) is important.

[0005] A conventional general connection structure of the upper part of the pillar is configured as shown in FIG. That is, both edges of a roof rail outer 11 and a roof rail inner 12 each having a shape in which edges 11a and 12a extend in the width direction of the main body from both sides of the main body having a U-shaped cross section (hereinafter referred to as a hat shape). A hollow roof rail 21 is formed by welding the parts 11a and 12a, and a roof bow gusset 25 and a pillar 22 are individually welded to the upper and lower parts of the roof rail 21, respectively.

More specifically, as shown in FIG. 6B, the roof bow gusset 25 has a flange 25a at the lower end thereof.
Are welded to the upper part of the roof rail outer 11. On the other hand, the pillar 22 is a pillar outer 1 having a hat-shaped cross section.
3 and a hollow member formed by welding both edges 13a, 14a of the pillar inner 14, and the pillar outer 13 and the flanges 13b, 14b of the pillar inner 14 are welded to the roof rail outer 11 and the lower portion of the roof rail inner 12, respectively. .

[0007] Furthermore, the pillars 22 can be used with the above-mentioned connection structure.
Since the hollow roof rail 21 is interposed between the roof rail gusset 25 and the roof bow gusset 25, the coupling force is insufficient due to the cross-sectional deformation of the roof rail 21 (deformation of the hollow portion) and the like, causing vibration and noise during traveling, etc. Therefore, in order to suppress such deformation of the hollow portion, conventionally, as shown in FIG. 6B, a bulk head 16 is provided in the hollow portion.

[0008]

However, in the above-mentioned prior art joint structure of the upper part of the pillar, the roof rail 21 is interposed between the roof bow gusset 25 and the pillar 22, and the bulkhead is located in the hollow part of the roof rail 21. 16, the number of parts increases,
There were problems such as poor weldability and offset of the force flow.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a coupling structure of an upper portion of a pillar which does not require a bulkhead and has sufficient strength against deformation of the entire vehicle body.

[0010]

Means for Solving the Problems A first method for solving the above problems is described below.
The upper pillar connection structure is formed at the upper end of a hollow pillar formed by connecting a pillar inner and a pillar outer extending in a vehicle vertical direction so as to be continuous with the pillar inner.
The outside of the car so that it is continuous with the inside of the car and the pillar outer
Are integrally formed with appropriate intervals in the vehicle interior and exterior directions.
And the roof bow or a direct binding <br/> case with the structures at the bottom of the roof bow gusset, the pillar inner upper portion interior side
From the car to the outside of the car
Roof bow or roof bow gusset
On the roof bow or roof bow gasket
To the lower surface of the pillar inner
Together with the upper end of the pillar inner
Of the roof bow or roof bow
A roof rail inner connected to the upper surface of the uga set and extending in the vehicle longitudinal direction is coupled to the pillar inner side of the upper end of the pillar, and has a rail extending in the vehicle longitudinal direction and legs extending downward from the rail. The leg portion of the outer roof rail is overlapped with the pillar outer, and the
The outer rail upper end and the roof rail outer
It is characterized by being connected to the upper end of the inner .

Further, in the coupling structure of the upper part of the second pillar, a bead is formed in the flange part of the upper end of the pillar inner jointed with the roof bow or the roof bow gusset in the coupling structure of the upper part of the first pillar. .

[0013] In a third embodiment of the present invention, the roof rail outer is an integrated structure in which the rail extends from a front end to a rear end of the vehicle body. And a plurality of the leg portions provided at appropriate positions on the rail portion.

Therefore, according to the above-mentioned first, second or third pillar upper connecting structure, the roof bow or the roof bow gusset is directly connected to the pillar, so that the flow of force is direct and the connecting rigidity is improved. In addition, since the pillar substantially penetrates the roof rail, it is not affected by the cross-sectional deformation of the roof rail, and the pillar penetration part functions as a bulkhead for the roof rail to reduce the torsion in the longitudinal direction of the roof rail. suppress.

Further, according to the above-mentioned second pillar upper coupling structure, the bead reinforces the flange at the upper end of the pillar inner.

Further, according to the above-mentioned third pillar upper connecting structure, the use of an integral roof rail outer portion extending from the front end to the rear end of the vehicle body makes the assembly lightweight and easy to assemble.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1A is a perspective view showing a coupling structure of an upper portion of a pillar according to the embodiment, and FIG. 1B is a perspective view showing FIG.
FIG. 2 is an exploded perspective view of the coupling structure above the pillar shown in FIG. 1, and FIG. 3 is an exploded perspective view showing the coupling structure between the roof bow gusset and the pillar in the coupling structure above the pillar shown in FIG. 1. It is an exploded perspective view shown.

As shown in these figures, the coupling structure of the upper part of the pillar according to the present embodiment is formed by coupling the pillar inner 4 extending in the up-down direction of the vehicle body and the pillar outer 3.
Continuous with the pillar inner 4 at the upper end of the hollow pillar 12
To be continuous with the inner surface of the vehicle and the pillar outer 3
The outer surface of the vehicle is integrally
The formed roof bow gusset 5 is directly connected by welding, and the roof rail inner 2 extends in the vehicle longitudinal direction.
1A which is welded to the pillar inner 4 side of the upper end of the pillar 12 and extends in the front-rear direction of the vehicle body and the rail 1A
A roof rail outer 1 having a leg portion 1B extending downward from the upper portion is welded to the pillar outer 3 side of the upper end of the pillar 12 such that the leg portion 1B overlaps the pillar outer 3.

More specifically, as shown in FIG. 2, the pillar inner 4 has a hat-shaped main body portion 4A, a cross section extending in the front-rear direction of the vehicle body, and extending from the back (inside of the vehicle) to the near side (outside of the vehicle). And an upper end portion 4B having a shape bent toward the upper side and further bent upward.
Is a member having a main body 3A having a hat-shaped cross section and an upper end 3B slightly extending in the vehicle longitudinal direction. Then, as shown in FIG. 1, the pillar inner 4 and the edges 4 a and 3 a on both sides of the pillar outer 3 are welded to form a hollow pillar 12. A bead (recess) 6 is formed on the flange 4b of the upper end 4B of the pillar inner 4 for reinforcement.

As shown in FIG. 2, the roof bow gusset 5 is a member having an upper portion 5A having a hat-shaped cross section and a lower portion 5B extending in the vehicle longitudinal direction. And FIG.
As shown in the figure, the upper end 4B of the pillar inner 4 is superimposed on the lower part 5B of the roof bow gusset 5, and the upper end 4
Upper portion 3B of the B and the pillar outer 3 is welded to the lower 5 B of the roof bow gussets 5 (edges 5a, etc.). Reference numeral 17 in FIG. 1 denotes a welding point. Under roof bow gusset 5
The surface extension 5b is welded to the lower surface of the pillar inner 4,
-The flange portion 4b of the inner 4 is
Welded on top. The upper part of the roof bow gusset 5 is connected to an end of the roof bow 7.

As shown in FIG. 2, the roof rail inner 2 has a cross section corresponding to the upper end 4B of the pillar inner 4, and the end in the vehicle longitudinal direction has the upper end 4B as shown in FIG. Are overlapped and welded to both ends in the vehicle longitudinal direction. As shown in FIG. 2, the roof rail outer 1 has a rail portion 1A having an L-shaped cross section and a leg portion 1B having a hat-shaped cross section. As shown in FIG. It is welded to the upper end 3B of the pillar outer 3 so as to overlap with the pillar outer 3. Then, as shown in FIG. 1, the rail portion 1A of the roof rail outer 1
The hollow roof rails 11 are formed by welding the edges 1a, 1b on both sides and the edges 2a on both sides of the roof rail inner 2.

Although not shown, the roof rail outer 1 has an integral rail 1A extending from the front end to the rear end of the vehicle body. It has a plurality of parts 1B.

The connection structure on the upper part of the pillar can be assembled by an arbitrary procedure. For example, it is as follows.

First, the pillar outer 3 and the pillar inner 4 are connected to form a pillar 12, and the roof bow gusset 5 is connected to the pillar 12. The state at this time is shown in FIG. Next, the roof rail outer 1 is connected to the pillar outer 3 side, and finally, the roof rail inner 2 is connected to the pillar inner 4 side.

Alternatively, the roof rail outer 1 is turned over, the pillar outer 3 is superimposed on this, the pillar inner 4 is further superimposed, and these are joined together, then the roof bow gusset 5 is joined, and finally the roof rail inner Combine two.

According to the above-structured connection structure of the upper part of the pillar, the following operation and effect can be obtained.

The pillar 12 and the roof bow gusset 5 are directly connected to each other, so that the flow of force from the roof bow 7 to the pillar 12 is direct, and the connection rigidity between them is improved. Therefore, sufficient strength against deformation of the entire vehicle body can be obtained. Since the pillar 12 substantially penetrates the roof rail 11, it is not affected by the cross-sectional deformation of the roof rail 11. Since the penetrating portion of the pillar 12 functions as a bulkhead for the roof rail 11, the torsion of the roof rail 11 in the longitudinal direction can be suppressed without using a bulkhead. By forming the bead 6, the strength of the flange portion 4b of the pillar inner 4 can be increased. By using the integral roof rail outer 1 extending from the front end to the rear end of the vehicle body, the weight of the vehicle body is correspondingly reduced, and the assembling of the skeleton of the vehicle body is facilitated.

Although the pillar 12 and the roof bow 7 are connected via the roof bow gusset 5 in the above-described connection structure, the pillar 12 and the roof bow 7 may be directly connected.

[0029]

According to the present invention, the roof bow or the roof bow gusset and the pillar are directly connected to each other to improve the rigidity of the connection between the pillar and the roof bow. Sufficient strength is obtained, and the structure is such that the pillar penetrates the roof rail substantially, so it is not affected by the cross-sectional deformation of the roof rail, and the pillar penetration part functions as a bulkhead for the roof rail. The torsion in the longitudinal direction of the roof rail can be suppressed without using a bulkhead.

Further, the strength of the flange portion of the pillar inner can be increased by the bead, and the use of an integrated roof rail outer portion extending from the front end to the rear end of the vehicle body reduces the weight and facilitates assembly.

[Brief description of the drawings]

FIG. 1A is a perspective view illustrating a coupling structure of an upper portion of a pillar according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line AA of FIG.

FIG. 2 is an exploded perspective view of a coupling structure of an upper part of a pillar shown in FIG.

FIG. 3 is an exploded perspective view showing a connection structure between the roof bow gusset and the pillar in the connection structure of the upper part of the pillar shown in FIG. 1;

FIG. 4 is a perspective view showing an example of a skeletal structure of a vehicle body.

FIG. 5 is a schematic view showing a skeleton structure of a main part taken along line DD of FIG. 4;

6 (a) is an enlarged view of a portion C in FIG. 5 and is a perspective view showing a conventional coupling structure of an upper part of a pillar, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof rail outer 2 Roof rail inner 3 Pillar outer 4 Pillar inner 4b Flange part 5 Roof bow gusset 6 Bead 7 Roof bow 11 Roof rail 12 pillar

Continuation of the front page (56) References JP-A-6-321131 (JP, A) JP-A-6-10177 (JP, U) JP-A-2-149381 (JP, U) JP-A-61-145078 (JP) , U) Hikaru 4-112175 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B62D 25/04-25/06

Claims (3)

(57) [Claims] 1. An inner surface of a hollow pillar formed by joining a pillar inner and a pillar outer extending vertically in a vehicle body so as to be continuous with the pillar inner.
The outside surface of the vehicle is inside the vehicle so as to be continuous with the pillar outer.
Roof bow integrally formed at appropriate intervals in the outward direction
Or with a configuration in which the lower part of the roof bow gusset is directly connected
And the upper end of the pillar inner is from the inside of the car to the outside of the car
The loop is bent and bent upward.
Lay it on the lower part of the fbow or roof bow gusset and
Forward the lower extension of the roof bow or roof bow gusset
The lower surface of the pillar inner and the pillar
Flange bent upward at the upper end of the inner part
To the roof bow or roof bow gusset.
Combined, the roof rail inner extending in the longitudinal direction of the vehicle body and coupled to the pillar inner side of the pillar upper portion, comprising a rail portion extending in the longitudinal direction of the vehicle body and a leg portion extending downwardly from the rail section roof rail the leg portion of the outer overlapping the pillar outer panel, on the pillar outer member
End and roof rail outer
Coupling structure top pillar, characterized in that attached to. 2. The connection structure for an upper part of a pillar according to claim 1, wherein a bead is formed in a flange portion at an upper end portion of the pillar inner to be connected to the roof bow or the roof bow gusset. 3. The roof rail outer, wherein the rail portion is an integral member extending from a front end portion to a rear end portion of the vehicle body, and has a plurality of the leg portions at an appropriate position of the rail portion. 3. The method according to claim 1, wherein
Connection structure of the upper part of the pillar described.