KR20050011521A - Reinforcing structure of dash panel for automobile - Google Patents

Abstract

PURPOSE: A dash panel reinforcing structure for a vehicle is provided to improve stiffness of a dash panel, to reduce noise, and to prevent an engine from thrusting into a vehicle room by mounting horizontally a cross member on the dash panel and vertically first and second center members. CONSTITUTION: In a dash panel(50) set up erectly on a side member(52) for supporting a bottom side of a vehicle and fixed at a bracket mounted at the side member to split and shield a vehicle room and an engine room, a dash panel reinforcing structure is composed of a cross member(1) disposed in the horizontal direction of the dash panel, contacted closely with the dash panel, and combined with the dash panel and the side member by welding and a first center member(2) joined in the middle of the cross member and combined with the dash panel and the cross member by welding to support a rear part.

Description

Reinforcing structure of dash panel for automobile}

The present invention relates to a dash panel reinforcement structure for an automobile, and more particularly, is installed to distinguish an engine room from an interior of a vehicle and also prevents the engine from being pushed to the occupants of a vehicle during a vehicle collision and prevents indoor noise from entering. The present invention relates to a dash panel reinforcement structure for automobiles.

In general, an automobile is composed of a chassis and a body, the chassis is composed of an engine, a suspension device, etc. The body is composed of an integral monocoque body, the body serves to firmly support the chassis.

Here, the body is largely divided into an engine room, a vehicle interior, and a trunk bar, so that external noise does not flow into the vehicle interior between the engine room and the vehicle interior, and when the vehicle collides, the engine is moved into the vehicle interior. The dash panel is installed to prevent pushing.

As shown in FIG. 3, the dash panel 50 is a rectangular panel having a convex tire receiving portion formed on both sides thereof, and a cowl member coupled to the upper end of the dash panel 50. 51 and a side member 52 for supporting the dash panel 50 while passing through both sides of the bottom of the dash panel 50.

Of course, the dash panel 50 is bent in a predetermined shape to improve rigidity, and a sound absorbing material (not shown) or the like is coated on the surface for noise shielding.

The dash panel 50 as described above blocks the engine room and the vehicle interior in a state in which the dash panel 50 is coupled to maintain the upright position on the side member 52, and the side member 52 and the dash panel 50 are separated. In order to couple the side member 52 is an upright bracket (not shown) is installed.

That is, by welding the dash panel 50 to the bracket to strengthen the coupling force between the dash panel 50 and the side member 52, so that the engine is not pushed into the room during the vehicle crash.

However, as described above, when the dash panel is welded and coupled only to an upright bracket installed on the side member, the coupling force between the dash panel and the side member makes it difficult to withstand the force pushed into the vehicle interior when the vehicle collides. Due to this, there is a problem that the engine is pushed into the vehicle interior and the occupant suffers a great injury.

In addition, when the dash panel is coupled to the brackets installed on the two parts of the side member, the dash panel is a thin plate structure, so that the dash panel vibrates according to the vibration of the vehicle, thereby generating noise, thereby inducing noise in the vehicle interior. There is a problem that becomes large.

Accordingly, an object of the present invention is to solve the above problems, and to configure the dash panel to have a rigidity enough to withstand the pushing force of the engine when the vehicle crashes, and also to block the vibration of the dash panel as a whole to quiet the interior of the vehicle It is to provide a dash panel reinforcement structure for automobiles that can improve the.

In order to achieve the above object, the present invention, an automobile dash including a dash panel disposed in an upright direction on the side member supporting the bottom of the vehicle and fixed to a bracket installed on the side member to divide and shield the vehicle interior and the engine compartment. In the panel reinforcement structure,

The cross member is disposed in the horizontal direction of the dash panel and is installed to be in close contact with the dash panel, and both ends are joined by welding with the dash panel and the side member, and the dash panel and the cross member are coupled to the middle part of the cross member. It is characterized in that it comprises a first center member coupled to the welding and supporting the rear.

1 is a perspective view showing a dash panel reinforcement structure for automobiles according to the present invention;

2 is a longitudinal sectional view of FIG. 1;

Figure 3 is a perspective view showing the installation state of a general automotive dash panel.

* Explanation of symbols for the main parts of the drawings

1: cross member 2: 1st center member

3: 2nd center member 4: fixed cover

50: dash panel 52: side member

1 and 2 are a perspective view and a cross-sectional view showing a dash panel reinforcement structure for automobiles according to the present invention, is disposed in a horizontal direction of the dash panel 50 and installed in close contact with the dash panel 50 and the dash panel 50. And a cross member 1 having both ends coupled to each other by welding with the side member 52 and the middle member of the cross member 1 as well as the dash panel 50 and the cross member 1 by welding. It consists of a first center member (2) for supporting the rear.

In addition, the second center member 3 is installed on the front surface of the dash panel 50 so as to overlap the first center member 2 to further improve the support rigidity of the dash panel 50.

In particular, a fixing cover 4 covering both ends of the cross member 1 is provided to firmly couple the cross member 1 to the dash panel 50 and the side member 52.

That is, the cross member 1 and the first and second center members (2, 3) to improve the rigidity of the dash panel 50, the cross member (1) is the dash panel 50 and Since it is fixed to the side member 52, the rigidity of the dash panel 50 can be significantly improved.

Referring to the operation and effect of the present invention as described above, after the worker mounts the dash panel 50 to the vehicle, the cross member 1 is disposed to cross the dash panel 50 and then the cross member 1 The fixed cover 4 is put on both ends of the back cover).

After the fixing cover 4 is covered, the fixing cover 2, the dash panel 50, the cross member 1, and the side member 52 are fixed together by welding. The side member 52 is described above. As the dash panel 50 and the cross member 1 are coupled to each other, as a result, the dash panel 50 is more firmly fixed to the side member 52.

In this state, the first and second center members 2 and 3 are coupled in the vertical direction, and the first and second center members 2 and 3 support the center portion of the dash panel 50. .

As described above, when a front collision occurs while the vehicle in which the cross member 1 and the first and second center members 2 and 3 are coupled, the engine light installed in the engine room is pushed backward. do.

When the engine light is pushed backward, the dash panel 50 first collides with each other. When the engine light collides with the dash panel 50, the cross member 1 crosses the dash panel 50. By distributing the impact force directly to the side member 52 while supporting the direction, the ability of the dash panel 50 to absorb the impact force is greatly improved.

In addition, the first and second center members 2 and 3 support the middle portion of the dash panel 50 before and after the dash panel 50, so that the impact force is transmitted to the dash panel 50. In addition, the impact force of the intermediate part may be improved, and the above-described impact force is distributed to the side member 52 through the cross member 1.

That is, while the impact force applied to the dash panel 50 through the cross member 1 and the first and second center members 2 and 3 is dispersed to the side member 52, the impact force of the dash panel 50 is substantially. It is possible to improve the absorption capacity.

In addition, not only the first and second center members 2 and 3 support the center portion of the dash panel 50 in the vertical direction, but also the cross member 1 supports the horizontal portion, thereby providing the above-described dash panel. The vibration of 50 is greatly attenuated, thereby greatly reducing the noise generation caused by the vibration.

When the noise generated in the dash panel 50 is reduced, the noise introduced into the vehicle interior is reduced, thereby significantly improving the quietness of the vehicle.

As described above, the present invention increases the rigidity of the dash panel by installing crossmembers in the horizontal direction and installing the first and second center members in the vertical direction on the dash panel that distinguishes the engine room of the vehicle from the interior of the vehicle. It is possible to reduce the number of passengers and to prevent the engine from entering the vehicle interior in the event of a vehicle crash, thereby minimizing passenger injuries.

Claims (3)

In the dash panel reinforcement structure for a vehicle including a dash panel disposed in the upright direction to the side member supporting the bottom of the vehicle and fixed to a bracket installed on the side member to divide and shield the vehicle interior and the engine room, The cross member is disposed in the horizontal direction of the dash panel and is installed to be in close contact with the dash panel, and both ends are joined by welding with the dash panel and the side member, and the dash panel and the cross member are coupled to the middle part of the cross member. The dash panel reinforcement structure for a vehicle, characterized in that it comprises a first center member coupled to the welding to support the rear. The method of claim 1, The dash panel reinforcement structure for automobiles, characterized in that it comprises a second center member installed upright on the front of the dash panel so as to overlap the first center member. The method according to claim 1 or 2, A dash panel reinforcement structure for a vehicle, characterized in that it comprises a fixing cover to cover the both ends of the cross member to securely couple the cross member to the dash panel and the side member.