KR19980056526A - Room side panel structure of car - Google Patents

Abstract

The present invention discloses a seal side panel structure of an automobile. According to the present invention, an inner panel 1 connected to one side of a floor panel 5 constituting the bottom structure of a vehicle is spaced apart from the inner panel 1 at predetermined left and right intervals, and an upper and lower flange part is disposed on the inner panel 1. In a seal side panel structure of a vehicle including an outer panel 2 fixed against an inner side and an inner and outer reinforcing panel interposed between the inner and outer panels 1 and 2, the outer reinforcing panel 4 The upper and lower ends of the inner and outer panels 1 and 2 are disposed at regular intervals, respectively, and are inserted and fixed between upper and lower flange portions of the inner and outer panels 1 and 2, and the inner reinforcement panel 31 is an inner panel. It is characterized in that the inner end face of (1) is directly abutted to form a closed end face of a predetermined size.

Description

Room side panel structure of car

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal side panel structure of a motor vehicle, and more particularly, to a structure in which rigidity for supporting a seal side panel installed along a lower portion of a car door is supported.

The conventional seal side panel is composed of inner and outer panels 1 and 2 spaced apart from each other at predetermined intervals as shown in FIG. 1, and the upper and lower flange portions of each panel 1 and 2 are spot welded. It is fixed. In addition, an inner reinforcement panel 3 and an outer reinforcement panel 4 for reinforcing the rigidity of the seal side panel are interposed between the inner and the outer panels 1 and 2, and are sandwiched and fixed between the flange portions. In particular, the inner reinforcement panel 3 abuts against the inner surface of the inner panel 1, while the outer reinforcement panel 4 is interposed at regular intervals between the inner reinforcement panel 3 and the outer panel 2. , The closed section is formed in two places.

One axis of the floor panel 3 is fixed to the lower flange portion of the inner panel 1 by spot welding, and an underframe 6 for strength reinforcement is installed at the bottom of the floor panel 3 along the longitudinal direction of the vehicle. It is.

In the seal side panel configured as described above, the outer panel 2 is first deformed during side impact of the vehicle, and the inner panel 1 is deformed through the outer reinforcement panel 4 and the inner reinforcement panel 3. It is a structure that plays an important role in protecting passengers by mitigating impact energy.

However, in the conventional seal side panel structure, the upper flange portion of the inner and outer panels 1 and 2 and the inner and outer reinforcement panels 3 and 4 are overlapped in four layers to be fixed by spot welding, and the lower flange portion is inner. And the outer panel (1, 2), the inner and outer reinforcing panels (3, 4) and the floor panel (5) on the outer side of the inner panel (1) are overlapped in five layers and fixed by spot welding, Too many parts had a problem of poor welding.

In addition, since the conventional seal side panel structure has two closed cross sections, there is a problem that the rigidity is weak and the side collision performance is poor.

In particular, compared to the upper flange portion of the seal side panel, since the lower flange portion is located inside the vehicle, the lower flange portion acts as a hinge point during the vehicle side collision, so that the entire seal side panel rotates about the hinge point. There was also the problem of worsening the injuries of the passengers.

Accordingly, the present invention has been made to solve the problems caused by the conventional seal side panel structure, the object of the present invention is to provide a seal side panel structure of a vehicle that can reduce the welding failure rate by reducing the number of welding parts of the flange portion. have.

In addition, another object of the present invention is to provide a seal side panel structure of an automobile which can increase rigidity by increasing the closed end surface forming portion of the seal side panel and also improve side impact performance.

In addition, there is another object to provide a seal side panel structure of a vehicle that can reduce the injuries of the passengers so that there is no portion acting the hinge point.

1 is a cross-sectional view showing a conventional seal side panel structure

2 is a cross-sectional view showing a seal side panel structure according to the present invention.

* Explanation of symbols for main parts of the drawings

1: inner panel 2: outer panel

4: outer reinforcement panel 5: floor panel

31: inner reinforcement panel

In order to achieve the above object, the present invention, the inner panel is connected to one side of the floor panel constituting the bottom structure of the vehicle, the inner panel is spaced at a predetermined interval left and right, and the upper and lower flange portion is fixed to the inner panel fixed In the seal side panel structure of the vehicle including the outer panel, and the inner and outer reinforcement panel interposed between the inner and the outer panel, the upper and lower ends of the outer reinforcement panel are arranged at a predetermined distance from each of the inner and outer panels The inner reinforcing panel is fitted between the upper and lower flange portions of the inner panel and the outer panel, and the inner reinforcement panel is fixed to the inner surface of the inner panel so as to form a closed end face of a predetermined size.

Preferably, the floor panel is fixed against the outer surface of the upper portion of the lower flange portion of the inner panel.

In particular, the upper and lower flange portions of the inner and outer panels are located at the same distance from the outermost portion of the outer panel.

According to the configuration of the present invention described above, since the upper and lower flange portions are made of only three layers, the welding failure rate can be greatly reduced, and the closed end surface is increased to three places by the inner reinforcement panel fixed directly to the inner panel, thereby increasing the rigidity and side impact. The performance is improved. In particular, since the upper and lower flange portions are positioned on the same vertical line, the portion that acts as a hinge point is eliminated, thereby reducing the injuries of the passengers.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

EXAMPLE

2 is a cross-sectional view showing a seal side panel structure according to the present invention.

For reference, in the description of the configuration of the present embodiment, the same parts as in the prior art described at the beginning of the specification are omitted and repeated descriptions are mainly described in order to avoid duplication of description. use.

As shown in the figure, the outer reinforcement panel 4 is fixed between the upper and lower ends of the outer reinforcement panel 4 between the inner and upper and lower flange portions of the outer panels 1 and 2 by spot welding. On the other hand, the inner reinforcement panel 31 is attached and fixed to form a closed cross section of a predetermined size on the inner surface of the inner panel (1). Therefore, a closed end surface is formed in three places between the outer panel 2 and the outer reinforcement panel 4, between the outer and inner reinforcement panels 4 and 31, and between the inner reinforcement panel 31 and the inner panel 1. do.

In addition, the upper flange portion is a state in which the inner reinforcement panel 31 is not interposed, and the inner and outer panels (1, 2) and the outer reinforcement panel (4) is overlapped and fixed.

On the other hand, the floor panel 5 is not connected to the lower flange part, but is spot welded to and fixed to the center outer surface of the inner panel 1. Therefore, the lower flange portion is also fixed in a three-ply manner like the upper flange portion.

In particular, the lower flange portion is located on the same vertical line as the upper flange portion. That is, each flange part is located at the same distance from the outermost part of the outer panel 2, and it prevents that a lower flange part acts as a hinge point at the time of side collision like conventionally.

Here, reference numeral 6 denotes an underframe provided on the bottom surface of the floor panel 5.

As described above, according to the present invention, since the upper and lower flange portions of the seal side panel are reduced from three to four folds and three to five folds, the number of welding parts is greatly reduced, thereby reducing the welding failure rate.

In addition, since the closed cross section is increased from two places in the seal side panel to three places in the prior art, the rigidity is enhanced and the side impact performance is improved.

In particular, since the upper and lower flange portions of the seal side panel are positioned on the same vertical line, the lower flange portion acts as a hinge point during side collision, thereby reducing the degree of injury of the occupant.

On the other hand, the present invention is not limited to the above-described specific preferred embodiments, and various changes can be made by those skilled in the art without departing from the gist of the invention claimed in the claims. will be.

Claims (3)

An inner panel to which one side of the floor panel constituting the bottom structure of the vehicle is connected, an outer panel spaced apart from the inner panel at a predetermined distance from left to right, and the upper and lower flange portions are fixed to the inner panel, and between the inner and outer panels In a seal side panel structure of an automobile including an interposing inner and outer reinforcing panel, the upper and lower ends of the outer reinforcing panel are disposed at regular intervals from each of the inner and outer panels, and are inserted and fixed between upper and lower flange portions of the inner and outer panels. The inner reinforcement panel is a seal side panel structure of a vehicle, characterized in that the inner surface of the inner panel is directly faced and fixed to form a closed end surface of a predetermined size. The seal side panel structure of a vehicle according to claim 1, wherein the floor panel is fixed to the outside of the upper portion of the lower flange portion of the inner panel. The seal side panel structure of a vehicle according to claim 1 or 2, wherein the upper and lower flange portions of the inner and outer panels are located at the same distance from the outermost portion of the outer panel.