KR100693274B1 - Fixing apparatus of a guard bar in a vehicle for protecting pssengers - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bumper installed in front of an engine room of a vehicle for the safety of an occupant in the event of a collision of an automobile, and more particularly to a bumper installed inside a bumper, To a guard bar fixing device installed to prevent the guard bar from being damaged. The above object is achieved by fixing a support between a guard bar made of a pipe having a gentle arc-like structure and a transverse member for fixing the radiator. And the support member is preferably formed with a bent portion to cover the installation phase difference of the guard bar and the radiator fixing lateral member. The support preferably has a bending flange on both sides in the longitudinal direction and a rib groove at the center.

Vehicle, pedestrian, protection, guard bar, fixing device, flange, rib groove, radiator

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a guard bar fixing device for protecting a pedestrian,

FIG. 1 is a perspective view of a related art,

2 is a plan perspective view of the present invention,

3 is a front perspective view of the present invention,

4 is a sectional view of the main part of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10: Guard bar,

20: a transverse member for fixing the radiator,

30: Support,

31: bent portion,

32: Bending flange,

33: rib groove.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bumper installed in front of an engine room of a vehicle for the safety of an occupant in the event of a collision of an automobile. In particular, when a pedestrian installed inside the bumper is impacted, Which is installed to prevent wearing of the guard bar.

According to the US Bureau of Transportation, 71% of pedestrian injuries and 85% of deaths occur in frontal collisions when a car collides with a pedestrian. When a person makes a head-on collision with a car, the legs are folded under the knee in 0.03 seconds. After 0.23 seconds, the whole body, especially the legs, breaks into the lower part of the body, or the head collides with the bonnet.

It has also been suggested that the front bumper should be made of a larger and more elastic material to prevent the pedestrian's lower body injuries, or that the lower and upper bumper should be lowered to move the upper and lower body together.

Unlike adults, children are particularly likely to hit the bumper and enter under the car. In addition, folding emblems and double bumpers for leisure vehicles, which are also being introduced in large domestic automobiles, are banned mainly in Europe, as a result of considering the safety of pedestrians.

Every year, 1.2 million people die from car accidents worldwide, and 10 million people are injured. More than one-third of these are pedestrians. Nonetheless, safety issues in car design have focused only on the occupants. Experts estimate that the introduction of pedestrian safety considerations could reduce the number of dead or injured pedestrians by one-half to 700,000, or 20 percent, a year.

Considering the safety of pedestrians in the event of a car collision is likely to be directly linked to car sales.

In 1998, the European Commission for Safety Enhancement (EEVC) issued a report on detailed inspection clauses, evaluation criteria and safety design measures to evaluate the safety of pedestrians in the event of a car collision. European automakers have voluntarily entered into agreements, and the vehicles introduced after 2010 have decided to comply with EEVC's pedestrian safety requirements. In other words, in order to export automobiles to Europe in the future, it means that automobile design considering safety of pedestrians is essential.

Pedestrian safety has already become a standard for consumers to purchase new cars. The European New Vehicle Assessment Program (Euro-NCAP), established by the European Community and the European Community (EC) in 1997, is a five-star safety assessment of pedestrian safety, Adding, and announcing.

Pedestrian safety assesses the impact of legs, upper body, adult and child's head, on the basis of when a 40-kilometer-per-hour car collides with a pedestrian.

As described above, there are many studies for safety of pedestrians.

As shown in FIG. 1, a guard bar 100 having its ends fixed to both sides of a radiator fixing lateral member 200 installed at the front of the conventional chassis is fixedly installed so as to surround the front inside of the front shield, for pedestrian safety. When the pedestrian's leg collides with the bumper, the guard bar 100 prevents the pedestrian's legs from penetrating below the vehicle, and the guard bar 100, And serves to induce small bending.

The stiffness of the guard bar 100 must be sufficiently maintained to prevent intrusion of such pedestrian bridges.

However, when the legs of the pedestrian collide with the middle portion of the support member, i.e., the radiator fixing lateral member 200 and the bumper that is spaced apart from the guard bar 100 relatively far from the guard bar 100 to withstand the load due to the rigidity of the guard bar itself, ) Is deformed and the legs of the pedestrian are intruded to the lower side of the vehicle.

This problem is exacerbated when the vehicle is of a medium or large size.

In order to prevent this, the thickness of the cross-section of the guard bar 100 is increased by means of increasing the rigidity of the pipe. In this case, however, there arises various problems that increase the weight of the single product.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and provides a technique for preventing the leg from being infiltrated into the lower portion of the vehicle body at the time of collision of the pedestrian by increasing the support strength without increasing the weight due to the increase in the rigidity, There is a purpose.

This object is achieved by fixing the support between the guard bars and the radiator fixing lateral members of a gentle arc-shaped pipe.

The support is preferably achieved by forming a bend to cover the installation phase difference of the guard bar and the radiator fixing lateral member.

This support is preferably achieved by forming a bending flange on both sides in the longitudinal direction and a rib groove in the center.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings of preferred embodiments.

FIG. 2 is a plan perspective view of the present invention, FIG. 3 is a front perspective view of the present invention, and FIG. 4 is a sectional view of a main part of the present invention.

A guard bar 10 of a gentle arch shape;

A radiator fixing lateral member (20); And a support base (30) fixed between the guard bar (10) and the transverse member (20) for fixing the radiator.

The support base 30 is preferably characterized in that the guard bar 10 and the radiator fixing lateral member 20 are formed with bent portions 31 so as to cover the phase difference respectively provided in the vehicle.

The support base 30 is fixedly connected to the center of the gap between the guard bars 10 and the transverse member 20 for fixing the radiator.

A rib groove 33 is formed at the center in the longitudinal direction and has grooves formed from the upper side to the lower side in accordance with the purpose of weight reduction and strength enhancement.

In the present invention constructed as described above, the guard bar 10 and the radiator fixing lateral member 20 are welded or bolted together. In the present invention, not only the bending rigidity of the guard bar but also the rigidity of the support frame are combined when the pedestrian collides with the intermediate portion of the bumper, thereby supporting the legs of the pedestrian under the bumper. On the other hand, the support base 30 has the upwardly bent flange 32 on both sides and the rib groove 33 in which the groove is formed from the upper part to the lower part at the center in the longitudinal direction. Furthermore, it is possible to reduce the cross-sectional area of the guard bar 10, thereby contributing to the overall weight reduction of the vehicle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined by the appended claims. And are included in the true scope and scope of the present invention as defined by the true inventive concept and scope of the present invention.

According to the present invention constructed and operative as described above, it is possible to increase the support strength without increasing the weight due to the increase in the rigidity, i.e., the cross-sectional area, of the guard bar, thereby preventing the legs from entering the lower portion of the vehicle body at the time of collision of the pedestrian, It is possible to reduce the weight of the vehicle.

Claims (4)

delete A vehicle guard comprising a guard bar (10) of a gentle arcuate configuration, a radiator fixing lateral member (20), and a support base (30) fixed between the guard bar (10) and the radiator fixing lateral member In the bar fixing device, The support base 30 is connected and fixed at the center between the guard bar 10 and the radiator fixing lateral member 20 by forming a bent portion 31 and has a bending flange 32 on both sides in the longitudinal direction, And a rib groove (33) in which a groove is formed from an upper portion to a lower portion. delete delete

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