KR19980036913A - Door rigid reinforcement structure - Google Patents

Abstract

The present invention relates to a rigid reinforcing structure of an automobile door for improving safety in a side collision in a door of an automobile, wherein the door chassis reinforcing material 7 is interposed and welded between the inner and outer reinforcing materials 3 and the door inner panel. (4) is welded to the inner stiffener (5) and the door sash stiffener (7), the structural filler (2) is filled in the outer stiffener (3) and the door outer panel (1) is welded and attached inside the door Door rigidity reinforcing structure characterized in that the joint of the outer panel is hemmed, the door chassis reinforcement (7) is added to the car door to enhance the rigidity of the door can improve the safety of passengers in the event of side collision.

Description

Door rigid reinforcement structure

1 is a sectional view showing the main parts of a conventional automobile door.

2 is a sectional view showing the main parts of a vehicle door according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1: door outer panel 3: outer reinforcement

4: door inner panel 5: inner reinforcement

6: door chassis 7: door chassis reinforcement

[Technical Field of Invention]

The present invention relates to a door of a vehicle, and more particularly, to a rigid reinforcement structure of the vehicle door for increasing safety in the side impact.

[Prior art]

Since the car door is very fragile and the passenger sits right next to the door, a high rigidity structure is required because the door may intrude into the interior during a side collision and cause serious injury to the passenger. To this end, in general, the reinforcement is installed in the inner and outer panels of the door to cope with the side impact inside the car door to cope with the impact during the side impact.

The cross-sectional structure of such a door is shown in FIG.

As shown, the door consists of an outer assembly and an inner assembly. The outer assembly is made by filling the structural filler (2) on the inner surface of the door outer panel (1), the outer reinforcing material (3) is padded, the flange portion spot welding. The inner assembly is made by welding the inner reinforcement 5 and the door chassis 6 to the door inner panel 4. On the other hand, during assembly, the door is completed by hemming the joint between the outer assembly and the inner assembly.

[Technical problem to be achieved]

However, the conventional door as described above has a problem that the outer reinforcing material is not connected to the inner panel side during the assembly process because the inner assembly and the outer assembly are made separately, and then hemmed to complete the joint.

An object of the present invention is to provide a door rigid reinforcing structure that can be reinforced by the urban chassis reinforcing material is interposed between the inner and outer reinforcing material in the automobile door.

[Configuration and Function of Invention]

In order to achieve the above object, the door rigid reinforcing structure according to the present invention is welded by interposing a door chassis reinforcement between the inner and outer reinforcement, the door inner panel is attached to the inner reinforcement and the door chassis reinforcement by welding, the outer reinforcement After the structural filler is filled and the door outer panel is welded and attached, the junction between the door and the outer panel is hammed.

EXAMPLE

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

2 is a cross-sectional view showing the structure of a door according to the present invention.

As shown, the door structure according to the present invention is added to the door sash reinforcement (7) between the inner and outer reinforcement (3) compared to the conventional door. In detail, first, the door chassis 6 is spot-welded to the inner surface of the door sash reinforcing material 7, the inner stiffener 5 at one end of the door sash reinforcing material 7, and the outer stiffener 3 at the other end. Are each spot welded. The door inner panel 4 is attached to the inner reinforcement 5 and the door chassis reinforcement 7 by spot welding at the outside of the assembled reinforcement assembly, and the structural reinforcement 3 is filled in the outer reinforcement 3 and the outer side of the door. After the panel 1 is spot welded and attached, the joints of the inner and outer panels of the door are hemmed to complete the door.

[Effects of the Invention]

According to the present invention as described above, the door sash reinforcement of the automobile door is added to enhance the rigidity of the door can improve the safety of the passengers in the event of a side collision. In addition, the rigidity of the door chassis is reinforced to improve the lifting performance of the door glass.

Claims (1)

In the structure of the automobile door, the door chassis reinforcement is welded between the inner and the outer reinforcement, the door inner panel is welded to the inner reinforcement and the door chassis reinforcement, and the outer reinforcement is filled with structural filler and the door outer panel is A door rigid reinforcement structure, characterized in that the joint between the inner and outer panels of the door is hemmed after being welded and attached.