JP2024058376A - Vehicle underbody structure - Google Patents

Abstract

[Problem] To fill the gaps formed by the Rocker Inner, Underlin Force, and End Reinforce, and to seal the holes by applying a normal sealer, thereby preventing water from entering the Underlin Force. [Solution] The end of the Underlin Force 14 is adjacent to the Rocker Inner 12, and a closed structure is formed at the end of the Underlin Force 14 by the Rocker Inner 12 and End Reinforce 16. A bead 18 is formed in the gap formed between the Rocker Inner 12 and End Reinforce 16. [Selected Figure] Figure 2

Description

This disclosure relates to a vehicle undercarriage.

Patent document 1 describes a vehicle underbody structure that includes an underbody force and a rocker that are provided under the floor of the vehicle.

JP 2019-167020 A

In general, gaps are formed on the mating surfaces of the rocker inner, underlining force, and end reinforcement that make up the rocker, except at the welded points, to improve the adhesion of the paint and prevent abnormal noise. As a result, a closed structure is formed at the end of the underlining force by the rocker inner and the end reinforcement, and a large hole is formed in that part. Rust can occur if water gets into the underlining force through the hole. To avoid this, a sealer is applied in a separate process, but if the sealer is not applied sufficiently, water may get into the underlining force. In addition, since work must be done under the floor of the vehicle, if an excessive amount is applied, the sealer will drip, making it difficult to apply a sufficient amount of sealer.

The purpose of this disclosure is to make it possible to fill the gaps formed by Rocka Inna, Underlin Force, and Endo Force, and to seal the holes by applying a normal sealer, thereby preventing water from entering the Underlin Force.

One aspect of the present disclosure is a vehicle undercarriage structure including a rocker inner provided on a vehicle to form a rocker, an underlining force provided on the vehicle, an end reinforcement provided on the vehicle, and a bead formed on an end of the underlining force, the end of the underlining force being adjacent to the rocker inner, a closed structure being formed at the end of the underlining force by the rocker inner and the end reinforcement, and the bead being formed in a gap formed between the rocker inner and the end reinforcement.

According to the present disclosure, it is possible to fill the gaps formed by Rocka Inna, Andarin Force, and Endorin Force, and seal the holes with a normal sealant application, thereby preventing water from entering the Andarin Force.

FIG. FIG.

The vehicle underbody structure 10 according to the embodiment will be described with reference to Figures 1 and 2. Figure 1 is a perspective view of the vehicle underbody structure 10 as viewed from below the vehicle. Figure 2 is a diagram showing a bead 18. The vehicle underbody structure 10 includes a rocker inner 12, an underbody reinforcement 14, an end reinforcement 16, and the bead 18.

A floor panel that forms the floor of the passenger compartment is provided under the vehicle. Rockers that extend in the front-to-rear direction of the vehicle are provided on both outer sides of the floor panel in the vehicle width direction. A pair of rockers are provided on the left and right sides of the vehicle. The rocker includes a rocker outer located on the outer side of the vehicle width direction and a rocker inner 12 located on the inner side of the vehicle width direction, and has a closed cross-sectional structure. The rocker outer is not shown in the illustration.

The underlining force 14 is located inside the vehicle width direction from the rocker inner 12 and extends in the front-rear direction of the vehicle. The underlining force 14 has a closed cross-sectional structure.

The rear end of the underlining force 14 (the end on the rear side in the vehicle's fore-and-aft direction) is adjacent to the rocker inner 12, and a closed structure is formed at the rear end of the underlining force 14 by the rocker inner 12 and the end reinforcement force 16. The rocker inner 12, the underlining force 14, and the end reinforcement force 16 are joined by welding.

The bead 18 is formed at the rear end of the underlining force 14. Specifically, the bead 18 is formed in the gap formed between the rocker inner 12 and the end reinforcement force 16 at the rear end of the underlining force 14.

By providing the bead 18 as described above, the gaps formed by the rocker inner 12, the underlining force 14, and the end reinforcement force 16 can be filled, preventing water from entering the underlining force 14. For example, the holes formed between the rocker inner 12, the underlining force 14, and the end reinforcement force 16 can be closed with a paint sealer, preventing water from entering the underlining force 14. Rust can also be prevented.

Even if the hole formed in the area surrounded by the rocker inner 12, underlining force 14, and end reinforcement force 16 becomes enlarged due to molding sagging of the cross section of the rocker inner 12 or end reinforcement force 16 or molding precision, the gap can be stably filled by adjusting the shape of the bead 18.

10 Vehicle underbody structure, 12 Rocker inner, 14 Underlining force, 16 Endlining force, 18 Bead.

Claims (1)

A locker inner member is provided in a vehicle to configure a locker;
An underarm force provided in the vehicle;
An end reinforcement provided on the vehicle;
A bead formed at the end of the underlining force;
Including,
The end of the underlining force is adjacent to the rocker inner, and a structure closed by the rocker inner and the end reinforcement is formed at the end of the underlining force,
The bead is formed in a gap formed between the rocker inner and the end reinforcement.
A vehicle underbody structure comprising: