KR20030000524A - Front Pillar Upper Reinforcing structure of car - Google Patents

Abstract

PURPOSE: A reinforcing structure of a front pillar upper is provided to sufficiently cope with a frontal crash and an offset crash by welding a front pillar inner upper extension and a front pillar inner upper reinforcement around a welding hole in a side inner panel. CONSTITUTION: A front pillar inner upper extension(110) and a front pillar inner upper reinforcement(120) are welded in a weak point around a welding hole(H) to reinforce the strength of the weak point. In a frontal crash or an offset crash of a vehicle, a shock load is dispersed to a roof front rail and a roof side rail. Thereby, the safety of passengers is secured by reducing the transformed amount of a roof corner.

Description

Front Pillar Upper Reinforcing structure of car}

The present invention relates to a front pillar upper reinforcement structure of a vehicle, and more particularly, in order to weld a joint portion between a side outer panel, a roof front rail, and a roof panel, welding for inserting a welding gun or the like into one side of the side inner panel. Since the welding hole is indispensable to form, the welding hole is inevitably fragile due to its characteristics, and in order to solve the problem, in the structure of the present invention, the front pillar inner upper extension is formed around the welding hole to reinforce the weak part of the welding hole. And a front pillar inner upper lane, the front pillar upper reinforcing structure of a vehicle capable of sufficiently coping with a frontal collision and an offset collision of the vehicle.

In general, since the side body of an automobile governs the bending rigidity of the entire vehicle body, the individual members constituting the side body need to be designed in consideration of the balance between the design requirements of the member alone and the overall rigidity.

The roof is provided with roof rails in front and rear, and reinforcement reinforcement is installed at the left and right or front and rear around the middle to improve the surface stiffness of the roof.

The front pillars need to be considered for securing the front watch and securing safety such as overturning. In addition, in order to reduce air resistance and wind noise, it is necessary to reduce the step between the front pillars and the doors and to achieve a smooth surface.

The main role of the front pillars and the lower center pillars is to support the doors and to set the reinforcement because the door hinges and door checker mounting force are exerted when the door is opened with a strong force or when the door is pressed down strongly. It is necessary to sufficiently secure the surface stiffness and strength of the mounting site by a method or the like.

1 is a perspective view showing a body of a general vehicle, Figure 2 is a perspective view showing a conventional side panel, Figure 3 is an exploded perspective view showing a conventional side panel, Figures 4a to 4d is a cross-sectional view taken along line A-A to D-D of FIG.

As shown in FIG. 1, the side panel 10 is installed on the side of the body 1, and the roof panel 20 is positioned above the side panel 10.

As shown in FIGS. 2 and 3, a side inner panel 11 is positioned inside the side panel 10, and a side outer panel 14 is welded to the side inner panel 11. In order to reinforce the rigidity, the side outer panel 14 is welded to the side outer panel 14.

The side outer upper extension 13 is welded to the side outer reinforcement 12 so as to have rigidity in frontal collision and offset collision of the vehicle.

In addition, the roof front rail 21 is welded to the corner reinforcement portion 11a formed on one side surface of the side inner panel 11.

In addition, as shown in Figs. 4a to 4d, typically, the side outer panel 14, the roof panel 20, and the roof front rail 21 are formed with a joint portion W for welding them. A hole H is formed in the side inner panel 11 to weld the site W, and a welding gun or the like is inserted into the hole H to perform a welding operation.

However, in the front pillar upper reinforcement structure of the conventional vehicle configured as described above, the corner reinforcement portion 11a should be extended to one side of the side inner panel 11, but this forming process is too difficult, and the corner reinforcement portion 11a is formed. In order to form the raw material panel also has to increase in size due to this will increase the manufacturing cost.

In addition, in the front pillar upper reinforcement structure of a conventional vehicle, the impact energy is transmitted to the front pillar in the path as shown by the arrow in FIG. 2 during the collision of the vehicle bar, for welding formed for the welding operation shown in Figure 4a Because of the hole (H), the structure around the hole is weak, which causes a lot of deformation of the body and thereby has a problem that does not protect the passengers in the event of a collision of the car.

The present invention has been proposed in order to solve the above problems, and in order to weld the joint portion of the side outer panel and the roof front rail and the roof panel, it is indispensable around the welding hole formed on one side of the side inner panel. The present invention provides a front pillar upper reinforcement structure of a vehicle that can sufficiently cope with a front collision and an offset collision of a vehicle by welding reinforcing the front pillar inner upper extension and the front pillar inner upper rain force.

1 is a perspective view showing a body of a typical vehicle,

2 is a perspective view showing a conventional side panel,

Figure 3 is an exploded perspective view showing a conventional side panel,

4A to 4D are cross-sectional views taken along line A-A to D-D of FIG. 2;

5 is a perspective view showing a side panel of the present invention;

6 is an exploded perspective view showing a side panel of the present invention;

7A to 7D are cross-sectional views taken along a line A′-A ′ to D′-D ′ of FIG. 5.

※ Explanation of symbols about main part of drawing ※

1: Body

10: Side Panel

11: Side Inner Panel

12: Side Outer Reinforcement

14: Side Outer Panel

20: Roof Panel

21: roof font rail

110: Front Pillar Inner Upper Extension

120: Front Pillar Inner Upper Reinforcement

In order to achieve the above object, the present invention, the side outer reinforcement is welded between the side inner panel and the side outer panel, the roof front rail and the roof panel is welded to the upper portion of the side outer panel, In the front pillar upper structure of a vehicle in which a welding hole for welding the side outer panel, the roof front rail, and the roof panel is formed on one side, the stiffness of the weak part of the welding hole is reinforced to the weak part around the welding hole. In order to achieve this, the front pillar inner upper extension and the front pillar inner upper rain force are welded.

To summarize the technique of the present invention, in order to weld the joint portion of the side outer panel, the roof front rail and the roof panel, a welding hole for inserting a welding gun or the like into one side of the side inner panel is indispensable. In order to solve the problem, the hole of the present invention increases the rigidity of the loop corner by welding reinforcing the front pillar inner upper extension and the front pillar inner upper lane in the weak part around the welding hole. It is possible to cope with the frontal collision and offset collision of the car enough to improve the safety of the passengers.

Hereinafter, with reference to the accompanying drawings will be described a characteristic configuration of the present invention.

5 is a perspective view showing a side panel of the present invention, Figure 6 is an exploded perspective view showing a side panel of the present invention, Figures 7a to 7d is a cross-sectional view taken along line A'-A 'to D'-D' of FIG. The side outer rain force 12 is welded between the side inner panel 11 and the side outer panel 14, and the roof front rail 21 and the roof panel 20 are welded to the upper side of the side outer panel 14. do.

In the weak part of the hole H formed in the side inner panel 11 for welding the joint portion W of the side inner panel 11 and the roof front rail 21 and the roof panel 20, the hole ( The front pillar inner upper extension 110 and the front pillar inner upper rain force 120 are welded to reinforce the rigidity of the weak part of H).

In other words, as shown in FIGS. 7A to 7D, the side outer panel 14, the roof front rail 21, and the roof panel 20 are formed with a joint portion W, and the joint portion W is formed. In order to weld the lower side inner panel 11, a welding hole H for welding is usually formed. The welding hole H is inevitably formed as a groove for inserting a welding gun or the like.

Therefore, the periphery of this hole H is inevitably structurally weak, and there is a need to reinforce this portion.

In the present invention, the weak portion around the welding hole (H) formed in the side inner panel 11 for welding the joint portion (W) of the side outer panel 14, the roof front rail 21 and the roof panel 20. By welding the front pillar inner upper extension 110 and the front pillar inner upper reinforcement 120 to reinforce, the collision load is distributed to the roof front rail side and the roof side rail side during the front and offset collision of the vehicle. By reducing the amount of deformation, passenger safety can be achieved.

As described above, in order to weld the joint portion of the side outer panel, the roof front rail and the roof panel, the present invention essentially forms a welding hole for inserting a welding gun or the like into one side of the side inner panel. Due to its characteristics, the periphery of the hole is inevitably weak. In order to solve the problem, the front pillar inner upper extension and the front pillar inner upper lane are welded around the welding hole to reinforce the weak part of the welding hole. It can fully cope with collision and offset collision.

Claims (1)

The side outer rain force 12 is welded between the side inner panel 11 and the side outer panel 14, the roof front rail 21 is welded to the upper side of the side outer panel 14, and the side inner panel is welded. In the front pillar upper structure of a vehicle in which a welding hole (H) for welding the side outer panel (14), the roof front rail (21), and the roof panel (20) is formed on one side of (11), The front pillar inner upper extension 110 and the front pillar inner upper reinforcement 120 are welded to reinforce the rigidity of the weak portion of the welding hole H, around the welding hole H. Front pillar upper reinforcement structure of car to make.