JPH0617664Y2 - Rear pillar structure of automobile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement in a rear pillar portion structure of an automobile.

(Prior Art and Problems Thereof) Conventionally, as a rear pillar portion structure of an automobile, as shown in FIGS. 8 and 9, a rear pillar having a closed cross section is formed by connecting an inner panel 1 and an outer panel 2 with each other's flanges. 5, while forming a narrow channel-shaped first reinforcing member 3 that extends in the vertical direction on the inner surface of the inner panel 1 before and after a narrow plate-shaped second reinforcing member 4 that extends in the vehicle width direction. It is proposed that the ends are joined to the flanges of the panels 1 and 2 and the intermediate part is joined to the first reinforcing member 3 (see Japanese Utility Model Laid-Open No. 60-137675).

The reason why it is necessary to reinforce the rear pillar 5 with the respective reinforcing members 3 and 4 as described above is because it receives a thrust load from the tire house 6 or a tensile load from the seatbelt anchor. is there.

By the way, in the conventional reinforcing structure of the rear pillar 5, the narrow channel-shaped first reinforcing member 3 is only joined to the inner pillar 1, and the narrow plate-shaped second reinforcing member 4 is inside the rear pillar 5. Since it only traverses in the front-back direction, there are two closed sections inside the rear pillar 5, a closed section between the panels 1 and 2 and a closed section between the inner panel 1 and the first reinforcing member 3. However, there is a problem that it is only formed, the reinforcement is not sufficient, the number of parts is large, and the number of manufacturing and assembling steps is increased.

(Object of the Invention) The present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to sufficiently reinforce the rear pillar portion of an automobile with a simple structure.

Therefore, the present invention is a rear pillar that forms a closed cross section by connecting an inner panel and an outer panel with each other's flanges, and a reinforcement that extends in the vertical direction is arranged inside the rear pillar. The front end portion and the rear end portion of the reinforcement are respectively coupled to the front and rear flange coupling portions of the rear pillar, and the front-rear intermediate portion of the reinforcement is coupled to the inner panel. The inside of the rear pillar is divided into three closed sections.

(Operation and Effect of the Invention) The present invention is to connect the front and rear ends of a vertically extending reinforcement placed inside the rear pillar to the front and rear flange joints of the rear pillar, and the middle portion thereof to the inner panel. It is joined to.

Therefore, the inside of the rear pillar is between the outer panel and the reinforcement, as well as between the inner panel on the front side and the reinforcement, and between the inner panel on the rear side and the reinforcement, with the joint as a boundary.
In each case, a total of three closed sections are formed, and the rear pillars are sufficiently reinforced by these three closed sections, and the strength and rigidity of the rear pillars are significantly improved.

Further, since only one reinforcement is provided, the number of parts is small and the manufacturing / assembling process is reduced.

(Embodiment) Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 3, the rear pillar 11 of the automobile 10 is
Basically, the inner panel 12 and the outer panel 13 are formed into a closed cross section by welding the front end flanges 12a, 13a and the rear end flanges 12b, 13b to each other.

On the other hand, the reinforcement (reinforcing member) 14 having a substantially U-shaped cross section disposed in the rear pillar 11 is the first
As shown in FIG. 4, FIG. 5 and FIG. 5, an upper portion 14A having an outer shape inclined forward so as to match the outer shape of the lower half of the rear pillar 11 and an inner portion that stands almost directly below the upper portion 14A. The lower part 14B of the panel 12 extending to the tire house 15 is formed.

On the relatively thin upper portion 14A of the reinforcement 14, the flanges 12a, 12b, 1 of the panels 12, 13 are provided.
A front end flange 14a and a rear end flange 14b which are sandwiched between 3a and 13b and integrally coupled are formed.

A lower end portion 14B of the reinforcement 14 having a relatively large thickness is formed with a front end flange 14a and a rear end flange 14b, which are continuous from the upper portion 14A and are joined to the inner surface of the inner panel 12, and the lower end portion 14B. The tire house 1 of the inner panel 12 is provided around the lower end of the portion 14B.
The lower end flange 14c joined to 5 is formed.

As shown in FIGS. 6 and 7, joint portions 14d and 14e joined to the inner surface of the inner panel 12 are provided at appropriate positions at the upper and lower positions in the middle portion of the upper portion 14A of the reinforcement 14 in the front-rear direction. It is formed to project.

With the above-described configuration, the first closed cross section A is formed between the outer panel 13 and the reinforcement 14 inside the rear pillar 11, and the reinforcement 1
The second closed cross section B between the inner panel 12 and the reinforcement 14 on the front side, with the joints 14d, 14d of No. 4 as boundaries.
Is formed, and the third closed cross section C is formed between the inner panel 12 and the reinforcement 14 on the rear side.

Therefore, the rear pillar 12 as a whole is sufficiently reinforced by the three closed sections A to C, and the strength and rigidity of the rear pillar 12 are improved.

[Brief description of drawings]

1 is a perspective view of an inner panel according to the present invention, FIG. 2 is a perspective view of an outer panel, FIG. 3 is a perspective view of a rear pillar, FIG. 4 is a plan view of an inner panel and a reinforcement, and FIG. The front view of FIG. 4 and FIG. 6 are II of FIG.
-II is a cross-sectional view of a rear pillar corresponding to line, FIG. 7 is a cross-sectional view of the rear pillar corresponding to line III-III in FIG. 5, FIG. 8 is a front view of a conventional rear pillar, and FIG. It is an II sectional view. 10 ... Automotive, 11 ... Rear pillar, 12 ... Inner panel, 12a, 12b ... Flange, 13 ... Outer panel, 13a, 13b ... Flange, 14 ... Reinforcement, 14A ... Upper part, 14B ... ... bottom part, 14a, 14b,
14c …… Flange, 14d, 14e …… Joined part, A to C …… Closed cross section.

Claims (1)

[Scope of utility model registration request] 1. A rear pillar which forms a closed cross section by connecting an inner panel and an outer panel with each other's flanges, wherein a reinforcement extending vertically is disposed inside the rear pillar. The front and rear ends of the rear pillar are respectively coupled to the front and rear flange coupling portions of the rear pillar, and the middle portion of the reinforcement in the front-rear direction is joined to the inner panel, so that the inside of the rear pillar is The structure of the rear pillar of an automobile, which is characterized by being divided into two closed sections.