KR20000041783A - Structure for preventing bending of front of floor for vehicle - Google Patents

Abstract

PURPOSE: A preventing structure of floor front bending of a vehicle is provided to reduce bending in a collision by having a strong reinforcement function even without increasing weight and by combining a convex square structure while embedding a reinforcement in the floor front of a vehicle. CONSTITUTION: A lower panel(12) of a floor(10) is formed in a structure of a groove. The groove structure of the lower panel is inserted to a panel(30) for reinforcement. The reinforcement panel has a convex structure if the lower face of the reinforcement panel is curved. The lower face is bent and extended 90 angular degrees and the extended face is fixed to the lower panel. The convex face(31) of the reinforcement panel is fixed to an upper panel(11) of the floor. Herein, a reinforcement is embedded in the front of the floor of a vehicle while a convex square structure is inserted. Thereby, bending in a collision is reduced by a strong reinforcement function without increasing weight.

Description

Floor bend prevention structure of vehicle

The present invention relates to a structure to prevent the front of the vehicle to bend in front of the vehicle, and in particular, a built-in reinforcement in the front of the vehicle, by inserting a convex square structure to combine, so as to have a strong reinforcement function at the same time without significantly increasing the weight, The floor forward bending prevention structure of the vehicle, characterized in that to reduce the bending phenomenon in the event of a crash.

In a generally known vehicle, a door is installed to allow a passenger to ride or get off and a vehicle is provided with a number of convenience devices installed therein, and a power generating engine is installed so that a hood for protecting the engine can be opened and closed. A body consisting of an engine room to be installed and a trunk formed to safely protect the cargo;

A power transmission device which is supported on the bottom of the vehicle body and transmits engine power to the driving wheel, a steering device that adjusts the driving direction of the vehicle by adjusting the direction of the driving wheel, and a traveling wheel by rubbing a drum installed inside the traveling wheel. Braking system that decelerates and brakes by limiting rotation, suspension system that absorbs vibration and shock transmitted from the ground to provide comfort to passengers, and traveling device composed of driving wheels that move the car by rotating movement in contact with the ground. Combining chassis; It is configured as.

The frame constitutes a skeleton for mounting each device or body constituting the chassis, and is an important part for supporting the load transmitted from the installed parts and the body and the reaction force in the front and rear axles.

As a result, the frame needs to be lightweight while having sufficient strength and rigidity to withstand bending, torsion, tension, and vibration caused by impact or load on the road surface that the vehicle receives while driving.

In particular, in the current state of strong resource savings, the frame and the body are integrally formed in a passenger car or the like. This type not only reduces the weight of the vehicle, but also properly assembles the frame and the body constituting the front or rear part of the vehicle to absorb impact force such as a collision as much as possible, so as to promote the protection of the passenger plane and the impact on other vehicles (people). Can be.

On the other hand, in front of the floor located on the foot of the driver to set the section to ensure more rigidity than other parts in preparation for the collision, the reinforcing panel is located in the shaded section of Figure 1a, Figure 1b 1C, the reinforcing panel 20 is positioned between the upper panel 11 and the lower panel 12 inside the floor 10.

The reinforcement panel 20 is positioned in the shape of a bowl, to prevent the bending of the vehicle body to some extent by supporting it when a collision occurs in front of the vehicle.

However, such a structure is not so high to withstand the impact compared to the weight of the reinforcing panel 20, the bending phenomenon as shown in FIG.

That is, when the reinforcement panel 20 is mounted on the floor 10 in a bowl shape as in the prior art, it was found that the bending phenomenon that occurs during the collision of the vehicle is not sufficiently reinforced because it does not exert a great effect.

The present invention is to solve the above problems, by changing the installation structure of the reinforcing panel installed on the floor, the object is to achieve a sufficient reinforcement effect even with a panel of less weight.

As a means for achieving the above object,

The present invention is characterized in that the reinforcing panel embedded in the lower floor of the vehicle has a convex structure, both sides are bent to be fixed to the lower panel, and the convex surface is fixed to the upper panel.

Figure 1a is a reinforcement section located on the floor front lower end of a typical vehicle.

Figure 1b is a perspective view of the reinforcement section of Figure 1a.

1C is a cross-sectional view taken along the line A-A of FIG. 1B;

2 is a front view of the floor bent when a force is applied from the front.

Figure 3a is a floor front bottom interior configuration of the present invention.

Figure 3b is a view showing the configuration of the present invention by cross-sectioning the B-B surface of Figure 3a.

<Explanation of symbols for the main parts of the drawings>

10: Floor 11: Floor Top Panel

12: floor lower panel 20: conventional reinforcement panel

30: Reinforcement panel of the present invention 31: Convex portion of the reinforcement panel

32: side part of the reinforcing panel

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

Figure 3a is a block diagram of the present invention, Figure 3b is a cross-sectional view of the BB surface of Figure 3a, as shown in the convex structure of the reinforcement panel 30 built in the lower end of the floor 10 of the vehicle, both sides (32) is bent and fixed to the lower panel 12 of the floor 10, and the convex surface 31 is fixed to the upper panel 11 of the floor 10.

In the present invention configured as described above, the lower panel 12 of the floor 10 is first formed in a groove structure, and the reinforcing panel 30 of the present invention is inserted into the groove structure of the floor lower panel 12. .

At this time, the reinforcing panel 30 of the present invention has a convex structure in which the lower surface is bent, and the lower surface has a surface extending while being bent by 90 degrees. Fix it.

Then, the convex surface 31 of the reinforcing panel 30 is fixed while covering the upper panel 11 of the floor 10.

Next, the strength versus weight of the conventional reinforcement panel 20 is displayed on the basis of the time when the reinforcement panel is not installed through the following table, and also in the present invention, the weight to strength of the reinforcement panel 30. Is displayed.

Table 1

weight Impact strength standard 100 100 Conventional 250 206 The present invention 242 242

As shown in the table, the conventional reinforcing panel 20 has a maximum impact strength of 206 when the weight is 250, whereas the reinforcing panel 30 of the present invention has a maximum impact strength of 242 when the weight is 242. Can be.

Therefore, when using the present invention it can be seen that the impact strength is much better than the conventional structure while the weight of the reinforcing panel 30 is less.

This is conventionally manufactured in a square angled bowl shape along the shape of the lower panel 12 and attached to the shape of the lower panel, thus assisting the strength of the lower panel 12.

This is because the present invention is not manufactured according to the shape of the lower panel 12, but because it is manufactured in a hat shape, the floor 10 can be supported with the lower panel 12 with a separate strength.

Therefore, the use of the present invention has a supporting effect to ensure sufficient strength even with a low weight reinforcement panel.

As described above, the present invention incorporates a reinforcement material in front of the floor of the vehicle, and inserts and combines a convex square structure to have a powerful reinforcement function at the same time without significantly increasing the weight, so as to reduce the bending phenomenon in the event of a crash. It is effective.

Claims (1)

The reinforcing panel 30 embedded in the front lower end of the vehicle floor 10 is formed in a convex structure in which both sides are bent downward. Both sides 32 of the bent surface are bent at 90 degrees to be fixed to the lower panel 12 of the floor 10, Floor convex prevention structure of the vehicle, characterized in that the convex surface 31 is fixed to the upper panel 11 of the floor (10).