JPH02380Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an automobile body structure that firmly connects a rear wheel house panel and an upper back panel.

[Conventional technology]

Automobile bodies are designed to be lightweight and have high rigidity.

For example, as shown in FIG. 3, a package tray bracket 10 is provided above the rear part of the rear wheel house inner panel 12 and is fixed to the rear wheel house inner panel 12. The rear wheel house inner panel 12 is fixedly connected to the rear wheel house inner panel 12 by an upper back panel 14, and further connected to the rear wheel house inner panel 1 via an extension 16 fixed to the rear floor pan (not shown).
2, an upper back panel 14, and a rear floor pan are fixedly connected by a strainer 18.

As described above, conventionally, the rear wheel house panel 12, the upper back panel 14, and the rear floor pan on both sides in the vehicle width direction are fixedly connected to each other via the package tray bracket 10, the extension 16, and the strainer 18, thereby increasing the vehicle width. The joint rigidity of the rear wheel house inner panels on both sides was improved to ensure body rigidity.

However, when the above body structure is used as a trunk-through (a vehicle body type in which the rear seats are folded down and the cabin and trunk pass through), the trunk-through opening width A is limited to a strainer to ensure body rigidity, as shown in Figure 4. 18 (or extension 16), the space between the left and right rear wheel house panels was not effectively utilized. In addition, the extension 16 and strainer 18 are simply plate materials, and are susceptible to deformation due to bending force due to torsional loads that occur between the rear wheel house panels on both sides of the vehicle width direction. There was room for improvement in body rigidity.

[Problem that the invention attempts to solve]

The present invention takes the above-mentioned facts into account, and aims to provide an automobile body structure that can increase the width of the trunk through-opening and further improve the rigidity of the body.

[Means for solving problems]

In the automobile body structure according to the present invention, a package tray bracket is provided above the rear part of the rear wheel house panel and is fixed to the rear wheel house panel, and the rear wheel house panel and the upper back panel are fixed to each other via the package tray bracket. The automobile body structure is connected to a package tray bracket, a rear wheel house panel, and an upper back panel, each of which is provided with a reinforcement that is fixedly connected to the rear panel. and the ends of the closed section in the vehicle width direction are bent at a substantially right angle, and extend in the longitudinal direction of the vehicle at the vehicle front portion of the package tray bracket, and the rear end portion is fixed to the front vertical wall of the package tray bracket. It is characterized by the fact that it has sides.

[Effect]

In the automobile body structure with the above configuration, reinforcement is used to improve the joint rigidity between each member of the package tray bracket, rear wheel house panel, and upper back panel, thereby increasing the joint rigidity of the rear wheel house panels on both sides in the vehicle width direction. can be improved.

Since the reinforcement is fixedly connected to the package tray bracket, rear wheel house panel, and upper back panel, it can be installed without narrowing the opening width of the trunk through-hole. By eliminating reinforcing members such as extensions and strainers that were placed inside the trunk, the opening width of the trunk through can be expanded.

In addition, the reinforcement can connect the rear wheel house panels on both sides in the vehicle width direction with high rigidity against loads in the vehicle width direction and vehicle vertical direction loads generated between the two through the closed section. The torsional load generated between the rear wheel house panels on both sides is effectively transmitted to the package tray bracket through the sides, and the rear wheel house panels on both sides in the vehicle width direction are highly rigid even against the torsional load generated between them. Can be combined with Therefore, reinforcement can improve the joint rigidity of the rear wheel house panels on both sides in the vehicle width direction regardless of direction, thereby further improving the rigidity of the body.

〔Example〕

1 and 2 show an embodiment of an automobile body structure according to the present invention.

In FIG. 1, the direction of arrow B points toward the front of the vehicle, and shows the structure around the rear wheel house on the right side of the vehicle. Although not shown in FIG. 1, the area around the rear wheel house on the left side of the vehicle is symmetrical with respect to the right side of the vehicle with respect to the body center line 20.

The rear wheel house 22 includes a wheel house inner panel 24 and a wheel house outer panel (not shown), and accommodates a rear wheel (not shown). A package tray bracket 26 is disposed on the vehicle rear side of the wheel house 22.

The lower end of the package tray bracket 26 is fixedly connected to the upper rear surface of the wheel house inner panel 24, and the upper surface is disposed above the upper surface of the wheel house inner panel 24 in the vehicle. A top back panel 28 is fixed to the upper end of the package tray bracket 26, and the top back panel 28 firmly connects the wheel house inner panels 24 on both sides in the vehicle width direction to each other via the package tray bracket 26. are doing.

In addition, as shown in FIG.
Wheel house inner panels 24 on both sides in the vehicle width direction via the zero and second reinforcements 32
are firmly connected to each other.

The first reinforcement 30 has both front ends fixed to the front of the upper back panel 28 and the upper front of the wheel house inner panel 24, and the upper surface between the upper back panel 28 and the wheel house inner panel 24. An inclined surface 34 that slopes upward toward the inside of the vehicle is formed.

The upper end of this first reinforcement 30 is fixed to the lower surface of the periphery of the upper back panel 28 and also to the upper surface of the package tray bracket 26, and the upper surface is connected to the inclined surface 34 and the upper end. As shown by the outline 35, the space between the two is intricately bent. Further, this upper surface has an end extending in the longitudinal direction of the vehicle between the inclined surface 34 and the package tray bracket 26, and is bent toward the lower side of the vehicle. A side surface 36 is formed at the front portion of the bracket 26 and extends in the longitudinal direction of the vehicle and whose rear end is fixed to the front vertical wall of the package tray bracket 26.

A bead 37 is formed on the front surface of the first reinforcement 30 between the upper back panel 28 and the wheel house inner panel 24 to improve the rigidity of the front surface.

A second reinforcement 32 is arranged below the first reinforcement 30. The second reinforcement 32 is joined to the first reinforcement 30 to form a rectangular closed cross section extending in the vehicle width direction, and faces the front surface of the first reinforcement 30. The vertical plane 38 is defined as the vertical plane 38. The peripheral edge of this vertical surface 38 is connected to the peripheral edge of the upper surface of the first reinforcement 30, and is also connected to the package tray bracket 26, as shown in FIG. Also,
A surface facing the upper surface of the first reinforcement 30 is an inclined surface 40. A portion bent from the front end of this inclined surface 40 is joined to the lower front surface of the first reinforcement 30. Also,
A portion of the inclined surface 40 bent from the outer end of the vehicle body is joined to a surface of the wheel house inner panel 24 on the vehicle inner side. A gap is formed between the end of the inclined surface 40 on the inside of the vehicle body and the end of the upper back panel 28 on the outside of the vehicle body.

In addition, the dashed-dotted line to which the numeral is not given in FIG. 1 shows the cross-sectional shape of each member.

In this embodiment, the first reinforcement 30 and the second reinforcement 32 firmly connect the package tray bracket 26, the wheel house inner panel 24, and the upper back panel 28 to each other. The joint rigidity between the members is stronger than before. Also,
Since the first reinforcement 30 and the second reinforcement 32 are joined to each other to form a closed cross section extending in the vehicle width direction, a gap between the rear wheel house inner panels 24 on both sides in the vehicle width direction is It can be coupled with high rigidity against loads in the vehicle width direction and loads in the vehicle vertical direction. That is, the load generated in the vehicle width direction between the rear wheel house inner panels 24 on both sides in the vehicle width direction is received by the inclined surfaces 34 and 40, and the load generated in the vehicle vertical direction is received by the vertical surface 38. The rear wheel house inner panels 24 on both sides in the direction can be connected with high rigidity against loads in the vehicle width direction and loads in the vehicle vertical direction that occur between them.

In addition, the end portion of the first reinforcement 30 in the vehicle width direction is bent at a substantially right angle, and extends in the vehicle longitudinal direction at the vehicle front portion of the package tray bracket 26, so that the rear end portion is bent at a substantially right angle.
Since the side surface 36 is fixed to the front vertical wall of the rear wheel house 6, the rear wheel house inner panels 24 on both sides in the vehicle width direction can be connected with high rigidity against torsional loads generated therebetween. In other words, the rear wheel house inner panels 2 on both sides in the vehicle width direction
4 to the package tray bracket 26 through the side surfaces 36, and connect the rear wheel house inner panels 24 on both sides in the vehicle width direction with high rigidity against the torsional load generated between them. can.

Therefore, the first reinforcement 3
0. By the second reinforcement 32, the joint rigidity of the rear wheel house inner panels 24 on both sides in the vehicle width direction is improved more than ever, regardless of the direction. As a result, the rigidity of the entire body is improved compared to before, and performance such as road noise is improved more than before.

Furthermore, in this embodiment, as shown in the conventional example,
Even if reinforcement members such as extensions and strainers that were conventionally placed in the trunk through opening are abolished, the rigidity of the body will not decrease.
By eliminating these members, the trunk through opening width can be expanded to the width between the left and right wheel house inner panels 24. As a result, the trunk through opening is enlarged compared to the conventional case, and the practicality of the trunk is improved. Furthermore, reinforcing members such as extensions and strainers are eliminated, resulting in a clearer interior in the trunk and an improved exterior appearance.

[Effect of idea]

As explained above, in the automobile body structure according to the present invention, reinforcements are provided that are fixedly connected to the package tray bracket, the rear wheel house panel, and the upper back panel. A closed section extending in the vehicle width direction, and a closed section extending in the longitudinal direction of the vehicle at the vehicle front portion of the package tray bracket, and a rear end portion extending in the vehicle longitudinal direction at the vehicle front portion of the package tray bracket. Since the side surface is fixed to the wall, the opening width of the trunk through can be increased, and the rigidity of the body can be further improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the rear wheel house showing an embodiment of the automobile body structure according to the present invention;
The figure is a sectional view taken along the - line in FIG. 1, and FIGS. 3 and 4 are explanatory views showing the conventional body structure around the rear wheel house. 24...Wheel house inner panel, 26...
...Package tray bracket, 28...Upper back panel, 30...First reinforcement, 32...Second reinforcement.

Claims (1)

[Scope of utility model registration request] An automobile body structure in which a package tray bracket is provided above the rear of the rear wheel house panel and is fixed to the rear wheel house panel, and the rear wheel house panel and the upper back panel are fixedly connected via the package tray bracket, A reinforcement is provided which is fixedly connected to the package tray bracket, the rear wheel house panel, and the upper back panel. A side surface is provided by bending the directional end portion at a substantially right angle, extends in the longitudinal direction of the vehicle at the vehicle front portion of the package tray bracket, and has a rear end portion fixed to the front vertical wall of the package tray bracket. Automotive body structure.