JPH085904Y2 - Upper body back panel reinforcement structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a reinforcing structure for an upper back connected to a rear wheel house.

<Prior Art> Conventionally, the upper back structure set in the vehicle body structure on the back side of the rear seat is such that the rear wheel house inner panels 12 on both left and right sides are upper back via the package tray bracket 10 as shown in FIG. Fixedly connected with panel 14,
Further, a rear wheel house inner 12, an upper back panel 14, and a rear floor pan are fixedly connected by a strainer 18 via a brace 16 fixed to a rear floor pan (not shown).

In this case, the strength and rigidity are secured by inserting the brace 16 and the strainer 18.However, when the trunk through is used, the trunk through opening width is restricted by the strainer 18 and the brace 16 from the viewpoint of ensuring the body rigidity. The space between the left and right rear wheel house panels was not being used effectively.

In order to solve this problem, for example
Issue is provided.

<Problems to be solved by the invention> As shown in FIG. 7, the above-mentioned No. Sho 63-59080 has a step portion at the front end of the upper back panel 1 and cooperates with the step portion of the upper back panel 1. The structure is such that a linearly-shaped closed cross-section beam that forms a closed cross-section is welded to the step portion of the upper back panel 1, and the surface side of this closed cross-section beam is welded to the rear suspension tower. The first curved surface portion R1 is formed due to the formation of the rattling portion 6, and the second curved surface portion R2 which is bent in the vehicle front-rear direction is formed in order to avoid the rear suspension mounting portion.
In the vicinity of the double curved surface portion 2R of R1 and R2, the stress becomes large and the strength becomes weak.

<Means for Solving the Problems> The present invention is an improvement over the above-mentioned conventional problems.The characteristic feature of the present invention is that a flat portion is formed by a curved surface portion on a horizontal surface, and a horizontal portion is formed at the front end with a vertical surface portion. An upper set in the vehicle body structure on the back side of the rear seat in which a cutout portion is formed by a step portion with the surface portion, a horizontal plane including the above-mentioned flat portion at left and right end portions in the vehicle width direction, and an end portion of the step portion. The back panel has a horizontal plane portion parallel to the horizontal plane of the cutout portion of the upper back panel, the front end of the horizontal plane portion is bent downward at a right angle, and one end of the horizontal plane portion is a step portion of the upper back panel. An upper back panel extension connected to a horizontal surface portion, and a curved surface portion corresponding to a curved surface portion of the shelf portion of the upper back panel at an upper edge, and a cutout portion horizontal surface and a stepped surface portion of the upper back panel. And the upper bar A package tray bracket that has a vertical surface portion that is coupled to the horizontal surface portion of the package panel extension and that closes the cutout portion of the upper back panel, and a triangular box-shaped body that opens at the front surface, and at the rear surface side of the package tray bracket. The opening side is connected to the package tray bracket, the connecting portion of the upper back panel extension and the package tray bracket, and the connecting portion of the horizontal plane of the cutout portion of the upper back panel and the package tray bracket, The reinforcing member is formed below the shelf of the panel.

<Operation> With the above configuration, the reinforcing member receives stress in the vicinity of the double curved surface portion formed in the shelf of the upper back panel, improves the strength of the double curved surface portion, and further improves the strength of the wheel house portion and the upper portion. The joint rigidity of the back portion is improved, and thereby the body rigidity is improved, and the weight can be reduced by reducing the number of conventional closed-section beams.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings. First
In the figure, the arrow FR direction points to the front of the vehicle and shows the structure around the rear wheel house on the right side of the vehicle. still,
Although the structure around the rear wheel house on the left side of the vehicle is omitted in the drawing, it is symmetrical to the right side of the vehicle.

In FIGS. 1 and 2, reference numeral 1 denotes an upper back panel, which has a concave portion 6 formed by a curved surface portion R1 on a horizontal plane, a step portion of an upright portion 1a and a horizontal plane portion 1b at a front end, and a vehicle width. A notch 1c is formed by the horizontal surface including the shelf 6 at the end in the direction and the end of the step.

Reference numeral 2 denotes an upper back panel extension, which has a horizontal plane portion 2a parallel to the horizontal plane of the cutout portion 1c of the upper back panel 1, and the front end of the horizontal plane portion 2a is bent downward at a right angle to form the horizontal plane portion 2a. One end of is connected to the horizontal plane portion 1b of the stepped portion of the upper back panel 1. A rear suspension mounting portion (not shown) is fixedly mounted on the horizontal surface portion 2a of the upper back panel extension 2.

Reference numeral 3 denotes a package tray bracket, which has a curved surface portion R2 corresponding to the curved surface portion R1 of the shelf portion 6 of the upper back panel 1 at the upper edge, and the flange 3c formed at the upper edge has the upper back panel upper back 1 Is connected to the horizontal surface of the cutout portion 1c, one side end is connected to the step surface 1a of the step portion, and the lower edge is connected to the flange 2b formed at the rear end of the horizontal surface portion 2a of the upper back panel extension 2. The notch 1c of the upper back panel 1 is closed by the upright portion 3a.

Reference numeral 7 denotes a reinforcing member, which has a front surface opened, and a flange 7b is formed around the opening, and the upright portion 7a and the upper and lower surface portions form a triangular box-shaped body.

The reinforcing member 7 is the rear surface side of the package tray bracket 3 and the flange 7b on the opening side of the package tray bracket 3, the connecting portion of the upper back panel extension 2 and the package tray bracket 3, and the upper portion. Notch in back panel 1
It is connected to the horizontal surface of 1c and the connecting portion of the package tray bracket 3, and is located below the shelf portion 6 of the upper back panel 1.

In addition, 3b is a working hole opened in the package tray bracket 3, and one or a plurality of holes are provided. Further, in FIG. 1, 2R is a curved portion 6 of the upper back panel 1 and a curved portion R1 of the upper back panel 1 and the package tray bracket 3
A double curved surface portion by the curved surface portion R2 of the edge is shown.

Since the present invention has the structure as described above, the upper back panel 1 can be input from the rear suspension while the vehicle is running.
The stress generated by the moment that acts on the front, back, up, and down of the package tray bracket 3 is transmitted from the upright surface portion 3a of the package tray bracket 3 to the upright surface portion 7a of the reinforcing member 7 which is substantially flush with the upright surface portion 3a. In order to share the force, it acts to reduce the stress particularly near the double curved surface portion 2R, and improves the strength of the front side portion of the upper back panel 1.

<Effects of the Invention> As described above, according to the present invention, a reinforcing member formed of a triangular box-shaped body is provided on the rear surface side of the package tray bracket below the upper back panel shelf, and the upper back panel, the package tray bracket, and the upper portion. Since the structure is fixed to the back panel extension, the stress acting on the upper back panel from the rear suspension when the vehicle is running is shared by the package tray bracket and the reinforcing member having the upright surface. The stress in the vicinity of the double curved surface portion 2R is reduced, and the strength of the upper back panel is improved.

In addition, the joint rigidity between the rear wheel house part and the upper back part is improved, which improves the body rigidity.

Further, by securing the strength and rigidity by the reinforcing member, it is possible to reduce a part of the closed cross-section beam at the front side portion of the upper back panel, reduce the plate thickness, and achieve weight reduction.

[Brief description of drawings]

1 is a perspective view of the present invention, FIG. 2 is the same exploded perspective view, FIG. 3 is a sectional view taken along the line AA in FIG. 1, FIG. 4 is a sectional view taken along the line BB in FIG. 1, and FIG. 1 is a sectional view taken along the line CC in FIG. 1, and FIGS. 6 and 7 are perspective views of a conventional structure. 1 ... Upper back panel, 2 ... Upper back panel extension, 3 ... Package tray bracket, 6 ... Tail part, 7 ... Reinforcing member.

Claims (1)

[Scope of utility model registration request] 1. A concave portion is formed on a horizontal surface by a curved surface portion, a step portion of a vertical surface portion and a horizontal surface portion is formed at a front end, and a horizontal surface including the flat portion at left and right end portions in a vehicle width direction, and It has an upper back panel set in the vehicle body structure on the back side of the rear seat in which a cutout is formed by the end of the step portion, and a horizontal plane parallel to the horizontal plane of the cutout of the upper back panel. An upper back panel extension in which a front end is bent at a right angle downward and one end of the horizontal plane portion is connected to a horizontal plane portion of a step portion of the upper back panel, and a curved surface of the upper back panel shelf portion at an upper edge. And a cutout portion of the upper back panel, which has a curved surface portion corresponding to that of the upper back panel and is connected to the cutout portion horizontal surface of the upper back panel and the vertical surface portion of the step portion and the horizontal surface portion of the upper back panel extension. A package tray bracket having an upright surface portion that closes up, and a triangular box-shaped body having an open front surface, the opening side being the rear surface side of the package tray bracket, the package tray bracket, the upper back panel extension, and the package tray bracket. And an upper back panel of a vehicle body, which is connected to a horizontal surface of the cutout portion of the upper back panel and a connecting portion of the package tray bracket, and a reinforcing member formed below the shelf portion of the upper back panel. Reinforced structure.