JP2918736B2 - Undercar body structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower structure of a vehicle body, and more particularly to a reinforcing structure for a center pillar and a rocker panel.

[0002]

2. Description of the Related Art As a lower body structure of a vehicle, there is a structure disclosed in Japanese Utility Model Laid-Open No. 2-85680. According to this, a center pillar is formed by a front portion of the rear quarter panel and a center pillar inner extending along the inner surface of the front portion of the rear quarter panel. Also,
A rocker panel extends forward from a wheel house portion formed at a lower portion of the rear quarter panel. The rocker panel includes a rocker panel inner, a rocker panel outer, a rocker panel outer, a rocker panel inner, and an outer. And a rocker reinforcing panel for reinforcing the panel.

[0003]

By the way, in the above-mentioned conventional structure, especially when the front portion of the rear quarter panel receives a side impact, the front portion of the rear quarter panel is reinforced by a center pillar inner and a rocker panel. However, since this is in the form of a flat plate having a large area, it may be easily deformed by the impact.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and when the front portion of the rear quarter panel receives an impact from the side, the rear quarter panel has the strength and the impact. The purpose of the present invention is to prevent the battery from easily deforming in a sufficient opposition.

[0005]

A feature of the present invention to achieve the above object is to provide a reinforcing panel which is respectively joined to a center pillar inner, a front portion of a rear quarter panel, and a rocker reinforcing panel. The center pillar inner and the reinforcing panel and the rocker reinforcing panel and the reinforcing panel joined to each other have a box-shaped cross section.

[0006]

[Operation] The operation of the above configuration is as follows. As shown in FIGS. 1 and 3 to 7, reinforcing panels 22 are joined to the center pillar inner 12, the front portion of the rear quarter panel 10, and the rocker reinforcing panel 18, respectively. Thereby, the front portion of the rear quarter panel 10 is reinforced. 1 and 4, the center pillar inner 12 and the reinforcing panel 22,
The rocker reinforcing panel 18 and the reinforcing panel 22 are joined to each other, and these joined portions are box-shaped in cross section. For this reason, the center pillar inner 1
2 and the rocker reinforcing panel 18 have sufficiently improved strength together with the reinforcing panel 22, that is, the center pillar inner 12, the rocker reinforcing panel 18, and the reinforcing panel 22 thus strengthened provide the rear quarter. The front part of the panel 10 is sufficiently reinforced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 2, reference numeral 1 denotes an automobile, and an arrow Fr indicates the front of the automobile 1. In all figures, 2 is a car 1
3 is a front wheel, and 4 is a rear wheel. A door opening 5 is formed in a side wall of the vehicle body 2.
It can be opened and closed freely. In addition, the door opening 5
A window opening 7 is provided in the upper part of the side wall of
Is formed, and the window opening 7 is closed by a window glass 8.

The outer surface of a side wall of the vehicle body 2 behind the door opening 5 is formed by a rear quarter panel 10. The window opening 7 is formed in the middle part of the upper part of the rear quarter panel 10. A wheel house 21 is formed in the middle of the lower quarter of the rear quarter panel 10 in the front and rear direction.
1 stores the rear wheel 4.

A vertically extending center pillar inner 12 is provided along the inner surface of the rear quarter panel 10 which is the surface on the vehicle compartment 11 side. A center pillar 13 is formed by the front portion of the rear quarter panel 10 and the center pillar inner 12, and the front edges of the rear quarter panel 10 and the center pillar inner 12 are spot welded firmly to each other (indicated by X in the figure, hereinafter). The same).

A rocker panel 15 extends forward from the wheel house 21 of the rear quarter panel 10,
The rocker panel 15 forms a lower portion of the opening edge of the door opening 5. The rocker panel 15 includes a rocker panel inner 16 facing in the left-right direction, a rocker panel outer 17, and a rocker reinforcing panel 18 for reinforcing the rocker panel inner 16 and the rocker panel outer 17. It is sandwiched between the rocker panel inner 16 and the rocker panel outer 17.
The rocker panel outer 17 is integrally formed with the front lower part of the rear quarter panel 10, and the rocker panel inner 16 and the rocker panel outer 17 are box-shaped in cross section below the door opening 5, thereby providing sufficient strength. ing. The rocker panel inner 16 and the rocker reinforcing panel 18 have a box-shaped cross section in front view, with the lower portion of the center pillar inner 12 sandwiched from the left and right. 20 is a floor panel, 21 is a wheel house.

A reinforcing panel 22 is provided between the front portion of the rear quarter panel 10 and the center pillar inner 12, which is firmly joined to the both, and extends vertically. The front edges of the rear quarter panel 10 and the reinforcing panel 22 are both bent toward the cabin 11, and in particular, as shown in FIG.
22a is superposed on the front and rear, and the rear quarter panel 1
The front of the 0 is fully reinforced. A lock striker support portion 23 for supporting the lock striker for the door 6 is formed in the overlapping portion.

As shown in FIGS. 4 and 5, the front edge of the reinforcing panel 22 is interposed between the front edges of the rear quarter panel 10 and the center pillar inner 12, and these three are integrally welded. ing. Also, the center pillar inner 12
The rear edges of the reinforcement panel 22 are welded to each other, and the section where the center pillar inner 12 and the reinforcement panel 22 are joined has a box-shaped section in plan view. As a result, the center pillar inner 12 and the reinforcing panel 22 are given sufficient strength, and accordingly, the front portion of the rear quarter panel 10 is sufficiently reinforced.

As shown in FIG. 1, a lower portion of the reinforcing panel 22 and the rocker reinforcing panel 18 face each other in the left-right direction and are firmly joined. In this case, the rocker reinforcing panel 18 and the reinforcing panel 22 have a box-shaped cross section in plan view. As a result, the rocker reinforcing panel 18 and the reinforcing panel 22 have sufficient strength, and accordingly, the front portion of the rear quarter panel 10 is sufficiently reinforced.

[0014]

According to the present invention, the reinforcing panels are joined to the center pillar inner, the front part of the rear quarter panel, and the rocker reinforcing panel, respectively, and the front part of the rear quarter panel is formed by these reinforcing panels and the like. Is reinforced. Moreover, the center pillar inner and the reinforcing panel, and the rocker reinforcing panel and the reinforcing panel are joined to each other, and these joined portions are box-shaped in cross section. Therefore, the center pillar inner and the rocker reinforcing panel are connected to the reinforcing panel. And the strength is improved sufficiently, that is, the center pillar inner, the rocker reinforcing panel, and the reinforcing panel thus strengthened,
The front part of the rear quarter panel is sufficiently reinforced. Therefore, even if the front portion of the rear quarter panel receives an impact from the side, the rear quarter panel can sufficiently resist the impact in terms of strength, and is reliably prevented from being easily deformed.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line 1-1 of FIG. 2;

FIG. 2 is a perspective view of a vehicle body.

FIG. 3 is an exploded perspective view of a lower portion of the vehicle body.

FIG. 4 is a sectional view taken along line 4-4 in FIG. 2;

FIG. 5 is a sectional view taken along line 5-5 of FIG. 2;

FIG. 6 is a sectional view taken along line 6-6 of FIG. 2;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automobile 2 Body 10 Rear quarter panel 11 Cab 12 Center pillar inner 13 Center pillar 15 Rocker panel 16 Rocker panel inner 17 Rocker panel outer 18 Rocker reinforcement panel 21 Wheel house part 22 Reinforcement panel

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B62D 25/00-25/08 B62D 25/14-25/22

Claims (1)

(57) [Claims] 1. A wheel house formed at a front portion of a rear quarter panel and a center pillar inner extending along a front inner surface of the rear quarter panel, and formed at a lower portion of the rear quarter panel. A vehicle body comprising a rocker panel extending forward from the part, a rocker panel inner facing the rocker panel in the left-right direction, a rocker panel outer, and a rocker reinforcing panel for reinforcing the rocker panel inner and the outer. In the lower structure, the center pillar inner, a front portion of the rear quarter panel, and a rocker reinforcing panel are respectively provided with reinforcing panels that are joined to the center pillar inner and the rocker reinforcing panel, and the rocker reinforcing panel and the same reinforcing panel. Each of the parts that are joined to each other are box-shaped Body lower structure.