KR20020081932A - Reinforcement in Automobile Center-Pillar - Google Patents

Abstract

PURPOSE: A reinforcing structure of a center pillar for a vehicle is provided to improve the strength of the vehicle body and safety by distributing load with installing an impact bar through the bracket in the intersection of the center pillar. CONSTITUTION: A T-shaped impact bar(10) is installed in the intersection of the panel in the upper part of a center pillar(1) by a bracket(12). Both ends of the impact bar are combined with a roof rail reinforcing panel(4), and the lower part of the impact bar is combined with a center pillar inner panel(5). The bracket is formed to contact the outer periphery of the impact bar to the panel, and the bracket, the impact bar and the panel are combined by welding. Load is distributed with installing the impact bar in the intersection of the center pillar.

Description

Reinforcement structure of vehicle center pillar {Reinforcement in Automobile Center-Pillar}

The present invention relates to a center pillar reinforcement structure of a vehicle, and more particularly, to a reinforcement structure of a vehicle center pillar that reinforces each member intersection of an upper portion of the center pillar to increase the rigidity and safety of the vehicle against side impact.

Generally, a vehicle is divided into a body and a chassis, and a chassis means a frame including various devices for driving, and a body means a portion except a chassis. Frame-integrated body with the body is the mainstream.

In other words, if the body itself is made of a strong structure that can withstand load or impact, the frame can be omitted, and the weight and floor can be lowered.

The frame-integrated body for this purpose is to distribute the external force to the whole body by making the body into a box shape, and install a small frame in the concentrated part of the external force, such as a suspension or engine mounting part, and bend the curved surface or the groove in the other part of the body. By increasing the stiffness.

On the other hand, the frame-integrated body has a shrinkage characteristic that absorbs the shock as the body shrinks during the impact, the space and the trunk space of the engine room is a crush zone having such a shrinkage characteristic.

On the other hand, the compartments located between the crash zones should be formed in a structure that should not be shrunk upon impact.

Therefore, the exterior walls of the cabin are secured by the front pillars, center pillars, rear pillars and side members and cross members of the lower part, and a number of added reinforcement materials. The stiffeners are to be further superimposed.

This is because there is almost no space for absorbing the impact because there is no crush zone as described above in the side impact, and in order to cope with the side impact, a reliable reinforcing structure must be provided.

However, where the impact is concentrated through the impact object during the side impact is a coupling portion of the member, such a coupling portion is easily damaged by the side impact, there was a problem that the shock response is insufficient.

Exemplary drawings for explaining this Figure 1 is an explanatory view showing the coupling state of the various members mounted on the center pillar, the center pillar (1) is a pillar of the body side for supporting the front and rear doors, the upper end of the roof rail ( 2) and the roof reinforcement panel 3 and the roof rail reinforcement panel 4 intersect, and the center pillar inner panel 5 and the center pillar reinforcement panel 6 overlap.

However, when the side impact of the vehicle concentrated on the center pillar 1 is generated, the impact is concentrated at the intersection point of each panel of the top of the center pillar 1, and the damage of the panels at the intersection area is severely bent. This is because even if the reinforcement panel formed with a plurality of grooves or bends is increased to increase the rigidity of the panel, the rigidity of the panel itself is limited.

In particular, since the collapse of the top of the center pillar (1) impacts the head of the front occupant, securing the rigidity of the intersection of the center pillar (1) in terms of safety of the vehicle was to be solved.

Accordingly, the present invention has been made in order to improve the above problems, it is an object of the present invention to provide a reinforcement structure of the vehicle center pillar to increase the rigidity and safety of the vehicle against side impact by reinforcing each member intersection of the top of the center pillar. .

The present invention for this purpose is to install the impact bar of superior rigidity at the intersection of the top of the center pillar, the "T" type impact bar is installed at the intersection of the top of the center pillar with the bracket "T" In addition to dispersing through the impact bar, this "T" impact bar, along with each reinforcement panel to respond to the impact to increase the support rigidity of the center pillar, the side pillar of the vehicle body.

Figure 1a is a facility name showing the side structure of the vehicle body,

Figure 1b is an exploded explanatory view showing a conventional center pillar reinforcement structure,

Figure 2a is a facility name showing the installation state of the center pillar reinforcement structure according to the present invention,

Figure 2b is an exploded explanatory view showing the installation state of the center pillar reinforcement structure according to the present invention.

-Explanation of symbols for the main parts of the drawings-

1-Center Pillar, 2-Roof Rail,

3-roof reinforcement panel, 4-roof rail reinforcement panel,

5-center pillar inner panel, 6-center pillar reinforcement panel,

10-"T" impact bar, 12-bracket,

Hereinafter, the present invention will be described with reference to the accompanying drawings.

Exemplary drawings Figure 2 is an explanatory view showing the center pillar reinforcement structure and the coupling state according to the present invention, the present invention is a "T" type impact bar 10 at the intersection of each panel of the center pillar (1) of the vehicle body It is a reinforcement structure of the vehicle center pillar, characterized in that installed.

Here, both ends of the "T" type impact bar 10 is coupled to the roof rail reinforcement panel 4, the lower end is coupled to the center pillar inner panel (5).

To this end, the "T" type impact bar 10 is mounted to the intersection of the top of the center pillar 1 through a separate bracket 12, and as shown, the outer circumferential surface of each of the "T" type impact bar 10 A bracket 12 is formed for surface contact with the panel, and the bracket 12 and the "T" type impact bar 10 and each panel are welded to each other.

As described above, the present invention provides a "T" type impact bar 10 as a reinforcing structure for dispersing the impact concentration at the intersection of the upper center pillar where the impact is concentrated upon side impact of the vehicle and reinforcing rigidity.

In the present invention for this purpose, the impact bar, which is a pipe-shaped reinforcement structure having a circular cross section, is installed at the intersection of the top of the center pillar 1 to distribute the load concentrated at the intersection.

It is well known that the pipe-shaped reinforcement structures such as the "T" type impact bar 10 are superior in response to impacts compared to plates such as roof rail reinforcement panels or inner panels. Can be mentioned.

In other words, even if a large number of bends or grooves are formed in the plate to increase rigidity, this is not comparable to that of the impact bar having a pipe shape in response to impact.

In the present invention, such an impact bar is applied to the center pillar 1, and is formed in a “T” shape to be applied to each member intersection point of the center pillar 1 so that the roof rail 4 and the center pillar 1 can be formed. It is installed at the intersection.

Here, the intersection of the top of the center pillar (1) is coupled to each plate as described above, forming a closed space for securing rigidity, so that the installation of the "T" type impact bar 10 into the inside of the closed space Is enough.

On the other hand, the "T" type impact bar 10 is installed to support each panel while the bracket 12 is provided to distribute the intersection, the bracket 12 is a "T" type impact bar 10 It is formed into the groove part of the semicircular cross section for seating, and the surface part for contact with each panel, and it seats in the groove part at each end of the "T" type impact bar 10, is welded with the bracket 12, and the surface part of the bracket 12 The panel is welded to each panel and the “T” type impact bar 10 is installed at the panel intersection portion of the top of the center pillar 1.

The "T" type impact bar 10 of the present invention is installed in the center pillar 1 as described above and mounted without exposure to the outside, thereby increasing the rigidity of the center pillar 1 upper intersection.

Therefore, when an impact is generated, the concentration of the impact at the intersection of the members is widely distributed through the three-point support of the "T" type impact bar 10, and each reinforcing panel along with the "T" type impact bar 10 It will respond to the shock.

As a result, the side rigidity of the vehicle body is increased, and damage to each member at the intersection of the center pillar (1) upper panel coupling portion is reduced, which reduces deformation of the top of the center pillar (1) due to the side impact of the vehicle. It will reduce the head injury of the driver and passengers.

According to the present invention as described above, the "T" type impact bar is installed along with the existing reinforcement panel at the intersection where the respective center pillar upper panels are coupled, thereby increasing the rigidity of the upper center pillar against the side impact, It is effective in improving safety.

Claims (1)

Body Center Pillar (1) The reinforcement structure of the vehicle center pillar having the "T" type impact bar 10 installed with the bracket 12 at the intersection of each upper panel.