KR19980060091U - Rear body reinforcement structure of vehicle - Google Patents

Abstract

The present invention relates to a rear body reinforcement structure of a vehicle. In the related art, when a large impact occurs at the side and rear, a closed end surface formed by the rear fender and the inner roof panel is easily deformed, so that the impact cannot be sufficiently absorbed and offset. Therefore, in order to solve the problem that the risk of an accident occurs, the rear fender is located at the bottom of the roof panel, the inner loop is joined to the rear fender to form a single closed section, and attached to the outer side of the rear fender In a rear body of a vehicle including a center rail joined to an inner end of the roof panel, the center rail 70 is extended to be joined to an inner end of the inner loop rail 60, and the rear fender 80 is After being bonded to the outer end of the inner loop 60 is attached to the inner side of the center rail 70, the end of the rear fender (80) of the inner loop (60) Attached to the inner surface provides a rear body reinforcement structure of the vehicle to form a plurality of closed cross-section.

Description

Rear body reinforcement structure of vehicle

The present invention relates to a rear body of a vehicle, and more particularly to a rear body reinforcement structure of the vehicle to be able to significantly reduce the impact on the side and rear collision by reinforcing the impact rigidity of the rear body.

In general, when the vehicle is divided into two parts, a chassis and a body may be divided. The chassis may include a chassis frame corresponding to a skeleton of the vehicle, an engine mounted on the chassis frame, and a power transmission device for driving the vehicle. It consists of

In addition, the body is a part for carrying a passenger or cargo by being made up of a cabin and a cargo loading part, etc., which corresponds to the exterior of the vehicle.

In addition, the body is largely divided into an external component, an internal component and an interior portion, wherein the exterior component is a portion visible from the outside of the vehicle, and the interior portion is a trim pad for covering an inner panel such as a seat and a door. The inner part is not visible from the outside of the vehicle, but is a part that secures the strength of the entire body by supporting the outer part, and each panel and roof panel and the floor fan installed on the inside of the outer panel. It is the part that becomes the skeleton of the containing body.

Meanwhile, in the case of a passenger car, a chassis frame and an integrated body are used to reduce the weight of the vehicle and to effectively absorb a shock applied to the vehicle due to a collision. The integrated body includes a floor panel and a roof. Combinations of panels and the like form the skeleton of the car interior.

1 and 2 illustrate a rear body of the vehicle, and when looking at the internal components of the rear body 5 formed at the rear of the vehicle, a roof panel 10 is installed on the upper surface of the rear body 5. In the lower part of the roof panel 10, the rear fender 20 and the inner loop foil 30 are joined to each other by a welding joint to form a single closed cross section, and the center rail 40 is disposed outside the rear fender 20. ) Is attached.

Therefore, when a collision occurs on the side and the rear of the rear body portion 5, the impact is transmitted to the closed end surface formed by the rear fender 20 and the inner loop frail 10, and the closed end surface is crushed or the like. As a result, the shock is absorbed.

However, in the rear body of a conventional vehicle, when a larger impact occurs at the side and rear, the closed end surface formed by the rear fender 20 and the inner roof panel 30 is easily deformed, so that the shock cannot be sufficiently absorbed and offset. Therefore, there was a problem that the risk of accidents occur.

The present invention was devised to solve the above problems, and an object of the present invention is to provide a rear body reinforcement structure of a vehicle capable of absorbing and offsetting a larger impact.

1 is a schematic view showing a rear body of a conventional vehicle,

2 is a cross-sectional view taken along the line I-I of FIG.

3 is a cross-sectional view showing a rear body reinforcement structure of the vehicle according to the present invention.

Explanation of symbols on the main parts of the drawings

60: inner loop 70: center rail

80: rear fender

In order to achieve the above object, the present invention provides a rear fender positioned at a lower part of a roof panel, an inner loop foil bonded to the rear fender to form a single closed cross section, and attached to an outer surface of the rear fender and having an inner end of the roof panel. A rear body of a vehicle including a center rail joined to the center rail, wherein the center rail is extended and joined to an inner end of the inner loop rail, and the rear fender is joined to an outer end of the inner loop rail and then the center rail of the center rail. Attached to the inside, the end of the rear fender is attached to the inner surface of the inner loop to provide a rear body reinforcement structure of the vehicle to form a plurality of closed end surface.

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

Figure 3 shows a rear body reinforcement structure of the vehicle according to the present invention, the rear body internal components of the vehicle are as follows.

An inner loop 60 is installed below the roof panel 10, and a center rail 70 joined to an outer end of the roof panel 10 is extended to an upper surface of the inner loop 60 to extend the inner loop. 60) is attached to the inner end.

Meanwhile, a rear fender 80 is bonded to an outer end of the inner loop panel 60, and one side of the rear fender 80 is attached to one side of the bottom surface of the center rail 70, and the rear fender 80 is attached. The ends of the two ends are joined to the inner surface of the inner loop foil 60 to form two closed end faces.

Therefore, the closed end surface formed by the center rail 70 and the inner roof panel 60 is divided into two closed end surfaces by the rear fender 80, and when the collision occurs at the side and the rear, each closed end The surface absorbs and cancels the impact.

According to the present invention as described above, even if a large impact is generated from the side and rear, the closed end surface consisting of the center rail, inner loop and rear fender can sufficiently absorb and offset the impact, thereby ensuring passenger safety. By doing so, there is a big advantage of improving the safety of the vehicle.

Claims (1)

A rear fender positioned under the roof panel, an inner loop foil bonded to the rear fender to form a single closed end surface, and a center rail attached to an outer surface of the rear fender and bonded to an inner end of the roof panel; In the body, The center rail 70 is extended to be joined to the inner end of the inner loop frail 60, and the rear fender 80 is joined to the outer end of the inner loop frail 60. The rear body reinforcement structure is attached to the inside, the end of the rear fender (80) is attached to the inner surface of the inner loop frail (60) to form a plurality of closed cross-section reinforcement structure of the vehicle.