JPH07149258A - Side part car body structure of automobile - Google Patents

Abstract

PURPOSE:To increase anti-side collision rigidity without deteriorating visibility by arranging a pillar reinforcement panel to connect a roof part and a side sill part to each other, dividing this into upper and lower parts in the vicinity of a belt of a rear quarter window part, and joining these divided parts to each other in a superposed condition in a two-door automobile. CONSTITUTION:A center pillar reinforcement panel 5 to connect a roof panel and a lower side side sill reinforcement panel 2a to each other together with a rear quarter panel 8, is arranged in a center pillar part. The center pillar reinforcement panel 5 is divided in the vicinity of a belt line 6 of a rear quarter window part, and these divided parts 3b and 4b are welded and joined together in a superposed condition, and are integrally formed. In the constitution, rigidity of the whole center pillar part is heightened, and rigidity of a vertical directional intermediate part and support rigidity in a connecting part are increased by superposed joining of the divided parts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side body structure of an automobile.

[0002]

2. Description of the Related Art In recent automobile body structures, various techniques have been developed for the purpose of improving the strength especially against side impacts. Especially, in the case of a two-door type car such as a hatchback car or a sports car, the center pillar located at the front part of the rear quarter window part is located just to the side of the rear seat part. As the rigidity of the rear seat is higher, the protection performance for the occupant in the rear seat portion is improved.

As an example of a vehicle body structure in consideration of that point,
Conventionally, for example, there is one disclosed in Japanese Utility Model Laid-Open No. 1-103483. In the vehicle body of an automobile of the same two-door type, for example, the one disclosed in this publication extends in the longitudinal direction of the vehicle body and has its front and rear ends joined together across a rear wheel house and a center pillar in the front portion of the rear quarter window. A honeycomb-structured side beam disposed inside the rear side outer panel (rear fender panel), and a hollow closed cross section which is coupled to the inside of this side beam and is disposed between the side outer panel and the side inner panel. A side vehicle body on the rear side is constituted by a side panel spacer having a shape and a rear lateral beam arranged inside the side panel spacer so as to extend in the vehicle width direction, and side impact energy to the portion is generated from the side inner panel side. The above honeycomb that is connected and supported to the rear lateral beam through the side panel spacer By so you receive the granulation of the side beams, so that to as small as possible suppress the influence of the occupant in the passenger compartment-side rear seat unit.

[0004]

However, in the configuration,
Even if the rigidity of the rear side vehicle body part (rear quarter part) improves, it only improves the rigidity near the hip seat part far below the belt line of the rear quarter wind part, and the entire center pillar part. However, there is a problem that it does not necessarily contribute effectively to the increase in the rigidity. Therefore, it is not sufficient as a measure for increasing the rigidity of the pillar at the time of a vehicle side collision.

[0005]

The present invention has been made for the purpose of solving the above-mentioned conventional problems, and is constructed as follows.

The side body structure of an automobile according to the present invention is a vehicle body of a two-door type automobile, in which a center pillar portion has an upper roof portion and a lower side sill portion together with an inner panel to form a hollow closed cross section in the vertical direction. The pillar reinforcement panel is connected to each other in the state of being divided, and the pillar reinforcement panel is divided into upper and lower parts near the belt line of the rear quarter window part, and the divided end parts are joined and integrated in a superposed state. Has been done.

[0007]

The side vehicle body structure for an automobile according to the present invention is constructed as described above, and as a result, the following action is achieved in accordance with the configuration.

That is, according to the side body structure of a vehicle of the present invention, as described above, in the vehicle body of a two-door type vehicle, the upper roof part and the lower side sill part are vertically arranged together with the inner panel in the center pillar part thereof. Pillar reinforcement panels that connect to each other in a direction that forms a hollow closed cross section are divided into upper and lower parts near the belt line of the rear quarter window part and the divided end parts are overlapped with each other. It is joined and integrated in the state.

Therefore, in this structure, the pillar reinforcement panel having a hollow closed cross-section structure having a high rigidity is disposed over the upper roof portion and the lower side sill portion, and the rear quarter window itself is provided. While the rigidity of the entire center pillar portion of the front portion is considerably improved, the pillar reinforcement panel is further divided into two upper and lower reinforcement panel members, and the divided end portions are joined to each other by the rear quarter. Since it is polymerized and reinforced near the belt line part of the window part and is joined to the belt line part at the polymerized part,
The rigidity of the vertical middle part itself and the supporting rigidity at the connecting part are also greatly improved.

As a result, it is possible to sufficiently increase the opposite side collision rigidity without increasing the width and size of the center pillar portion, and the visibility from the vehicle interior to the vehicle exterior is not reduced.

[0011]

As a result of the above, according to the side body structure of an automobile of the present invention, the center pillar portion of the front portion of the rear quarter window portion does not reduce the visibility from the cabin side to the outside, and It is possible to sufficiently improve the rigidity of a side impact, and it is possible to secure the safety at the time of a side impact without losing the comfort (feeling of release) of the passenger on the rear seat side when riding.

[0012]

1 to 8 show a side vehicle body structure in a rear quarter portion of a two-door type automobile A according to an embodiment of the present invention.

First, FIGS. 1 and 2 show the overall structure of the same side body structure. In FIG. 1, reference numeral 1 is a roof panel located above the vehicle body, and 2 is a side sill located below the vehicle body and extending in the front-rear direction. The inner panel, 2a is a side sill reinforcement panel integrally joined to the side sill inner panel 2 in a state of forming a hollow closed cross section, 8
Has a belt line 6 that forms the lower edge of the rear quarter window portion 9 on the upper side, and has a wheel house 7 on the lower side, the rear quarter panel as the inner panel in the claims (rear fender portion inner ) 5 is a center pillar reinforcement panel 10 which is located at the front part of the rear quarter window part 9 and extends in the up-down direction, and its front and rear ends are joined to the rear quarter panel 8 as the inner panel. It is a wind glass provided in the quarter window section 9.

As shown in FIG. 8, the center pillar reinforcement panel 5 has a T-shaped portion on the upper end 3a side, the roof panel 1, the upper end portion of the upper piece 8a on the front end side of the rear quarter panel 8, and the rear fender outer panel 12. The lower side second member 4 in which the upper side first member 3 and the lower end 4a side T-shaped portion which are respectively joined to the upper end portions of the front end side upper pieces 12a are connected to the outer surface of the side sill reinforcement panel 2a. Is divided into two reinforcement panel members, and the lower side and upper side divided end portions 3b, 4b of the first and second members 3 and 4 are connected to the rear quarter window 9 lower edge side of the rear quarter panel 8. Near the front end portion 6a of the belt line 6, the belt line 6 is vertically overlapped by a predetermined width and integrally joined by spot welding, for example. The lower piece 8b on the front end side of the rear quarter panel 8 is joined and connected between the side sill inner panel 2 and the side sill reinforcement panel 2a, and the lower piece 12b on the front end side of the rear fender outer panel 12 is the center pillar rain. Second lower side of the force panel 5
It is joined and connected to the side sill reinforcement panel 2a through the lower end 4a of the member 4. These results,
In the overlap welding state, the front and rear surfaces of the first and second members 3 and 4 of the center pillar reinforcement panel 5 are attached to the front end of the rear quarter panel 8 as shown in FIGS. 3 to 5 and 8. Upper side piece 8a and lower side piece 8b,
Also, the upper piece 1 on the front end side of the rear fender outer panel 12
2a and the lower piece 12b are joined and integrated so as to form a hollow closed cross section extending in the vertical direction. Further, as shown in FIG. 5, the trim member 1 is provided below the belt line 6 on the rear surface (vehicle compartment surface) side of the rear quarter panel 8.
1 is provided.

Incidentally, in FIG. 7 and FIG.
Indicates a floor panel.

As described above, according to the vehicle side body structure of the embodiment of the present invention, in the vehicle body of a two-door type vehicle in which the center pillar is located on the side of the rear seat, the upper roof panel is attached to the center pillar. A center pillar reinforcement that connects 1 and a lower side sill reinforcement panel (side sill inner panel 2) 2a together with a rear quarter panel 8 front end and a rear fender outer panel 12 front end so as to form a hollow closed cross section in the vertical direction. The center pillar reinforcement panel 5 is divided into upper and lower parts in the vicinity of the belt line 6 of the rear quarter window part 9, and the divided end parts 3b, 4b have a predetermined width in the vertical direction. They are welded and integrated in a polymerized state.

Therefore, in this construction, the upper roof panel 1 and the lower side sill reinforcement panel are arranged.
A high-rigidity center pillar reinforcement panel 5 is disposed across the (side sill inner panel 2) 2a, and as a result, the rigidity of the entire center pillar portion at the front end of the rear quarter window portion 9 is considerably increased. While being greatly improved, the center pillar reinforcement panel 5 is further divided into two upper and lower reinforcement panel members 3 and 4, and the divided end portions 3b and 4b are connected to each other to the rear of the rear quarter window portion 9. Quarter panel 8 and rear fender outer panel 12
In the vicinity of 6 parts of the belt line formed by the above, it is sufficiently reinforced by being overlapped with a predetermined width in the vertical direction, and is sufficiently reinforced, and the overlapped part is also joined to the 6 parts of the belt line in a quadruple structure. The rigidity of the vertical intermediate portion itself and the supporting rigidity at the connecting portion are also greatly improved.

Further, of the center pillar reinforcement panel 5 divided into the upper and lower parts, the upper first reinforcement panel member 3 is an upper piece of each extended portion of the inner rear quarter panel 8 and the outer rear fender outer panel 12. 8a and 12a, and the lower second reinforcement panel member 4 is the same rear quarter panel 8
Since the hollow closed cross-sections are formed on both front and back sides together with the front lower end pieces 8b and 12b of the rear fender outer panel 12, the rigidity of the entire center pillar portion described above is further greatly improved by the two hollow closed cross-section structures. Come to do.

As a result, it is possible to sufficiently increase and strengthen the opposite side collision rigidity (strength) without enlarging the width and size of the center pillar portion, thereby reducing the visibility from the vehicle interior to the vehicle exterior. Nothing.

Therefore, according to the side body structure of the automobile of the embodiment of the present invention, the visibility of the center pillar portion of the front end portion of the rear quarter window portion 9 from the passenger compartment side to the outside is not deteriorated, and the whole of the center pillar portion is sufficiently It is possible to improve the rigidity of the opposite side collision, and it is possible to sufficiently secure the safety at the time of a side collision without losing the comfort (a feeling of openness) of the passenger on the rear seat side when riding.

[Brief description of drawings]

FIG. 1 is a side view showing a side vehicle body structure of a two-door type automobile according to an embodiment of the present invention.

FIG. 2 is a perspective view of the same.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG.

5 is a sectional view taken along line CC of FIG.

6 is a cross-sectional view taken along the line DD of FIG.

7 is a sectional view taken along line EE of FIG.

FIG. 8 is a schematic view of a FF cross section of FIG.

[Explanation of symbols]

1 is a roof panel, 2 is a side sill inner panel, 2a
Is a side sill reinforcement panel, 3 is a center pillar reinforcement panel first member, 4 is a center pillar reinforcement panel second member, 5
Is a center pillar reinforcement panel, 6 is a belt line, 7 is a wheel house, 8 is a rear quarter panel (rear fender inner part), 9 is a rear quarter window part, and 12 is a rear fender outer panel.

Claims (1)

[Claims] 1. In a vehicle body of a two-door type automobile,
The center pillar portion is provided with a pillar reinforcement panel that connects the upper roof portion and the lower side sill portion together with the inner panel in a state of forming a hollow closed cross section in the vertical direction, and the pillar reinforcement panel is attached to the rear reinforcement panel. A side vehicle body structure for an automobile, characterized in that it is vertically divided near the belt line of the quarter window and the divided ends are integrally joined in a superposed state.