JPH0352614Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the rear body structure of an automobile, and more specifically, to a car body structure in which a continuous reinforcing member with a closed cross-section structure is provided near the rear pillar. .

[Conventional technology]

Convertible cars, which offer a sense of freedom when riding, do not have roofs, and can be covered with hoods to provide sun and rain protection. By the way, in a car body with a roof, the upper roof and the lower car body can be integrated via pillars, etc., and in the longitudinal and width directions of the car,
The rigidity of the vehicle body can be increased by forming a monocot-like structure in which each member is connected in an annular manner.

In order to further increase its strength, it is sufficient to reinforce the pillars mentioned above.
Publication No. 63784 describes an example in which a stiffener is installed that extends along the rear pillar to the wheel house.

On the other hand, in an open car, a roll bar is provided, for example, so as to straddle the space above the seats, and its lower side is attached to the vehicle body in the same way as the rear pillar, in order to prevent damage to the vehicle body in the event of a rollover. In this way, even in a roll bar having substantially the same function as a rear pillar, if reinforcement is required, the stiffener described above or a structure replacing it can be employed.

[The problem that the idea aims to solve]

However, since open cars do not have roofs, the lower part of the car body is required to have even higher rigidity, and there is a strong desire to improve the strength of door openings and belt line openings.

By the way, Japanese Utility Model Publication No. 56-24145 discloses an example in which a center pillar reinforcement and a quarter panel reinforcement are attached to the outer surface of a quarter panel in order to reinforce the center pillar and the belt line. Therefore, the strength of the door opening and the belt line opening has been improved to some extent.

However, the belt line opening is only reinforced at the side of the vehicle body, and there is a drawback that continuous reinforcement in the left and right direction of the vehicle body is not achieved. Moreover, since the center pillar reinforcement and quarter panel reinforcement are located in the closed space between the inner panel and outer panel of the vehicle body, the center pillar may not fall toward the inside of the vehicle. The reinforcement is
This structure is inferior to the case where they are provided inside the inner panel.

The present invention was developed in view of the above-mentioned problems, and its purpose is to improve the strength of the door opening and belt line opening in the roll bar of a convertible car or the rear pillar of an equivalent ordinary car.
This can be achieved while maintaining continuity with the panel structure of the rear package cage, and by reinforcing the door openings and belt line openings, it is possible to more reliably prevent the pillars from collapsing. To provide a rear body structure for an automobile that can further increase the rigidity of the vehicle body.

[Means to solve the problem]

In the present invention, a pillar reinforcing member that extends vertically is attached to the rear pillar that is composed of a rear pillar inner panel and a rear pillar outer panel and has a closed cross section, and a pillar reinforcing member that extends vertically from the rear pillar to the belt line that extends back and forth. The present invention is applied to a rear body structure of an automobile in which a belt line reinforcing member is attached and the pillar reinforcing member and the belt line reinforcing member are connected.

Its characteristics are as shown in Figure 1.
The rear pillar inner panel 3A and the inner panel 6 are combined, and the rear pillar outer panel 3B and the rear fender panel 18 are combined, and a closed space 28 is formed between the two connections. The pillar reinforcing member 8 is the rear pillar 3
The part near the belt line 4 and the floor panel 5 are connected closer to the vehicle interior than the closed space 28, and
A closed cross section 7 is formed with the inner panel 6.
The belt line reinforcing member 17 is attached to the belt line 4
The inner panel 6 and the closed section 16 are formed closer to the vehicle interior than the closed space 28 in the vehicle. The closed cross section 7 formed by the pillar reinforcing member 8 and the closed cross section 15 formed at the rear part of the rear package 11 and extending along the left and right belt lines 4 are formed by the belt line reinforcing member 17. Closed section 16
The belt line reinforcing member 17 is coupled to the pillar reinforcing member 8 and the rear package 11 so that the belt line reinforcing member 17 is connected to the pillar reinforcing member 8 and the rear package 11 through the pillar reinforcing member 8 and the rear package 11, respectively.

[Effect of idea]

According to the present invention, the door opening in the rear pillar is reinforced by the pillar reinforcing member, and the strength of the belt line opening is improved by the belt line reinforcing member. Moreover, the belt line reinforcing member is attached so that the closed cross section of the belt line reinforcing member is continuous with the closed cross section formed on the rear package, and the closed cross section formed by each reinforcing member is continuous. The structure of the rear part of the vehicle becomes even stronger due to their interaction. Furthermore, since the pillar reinforcing member is attached to the vehicle interior side of the rear pillar inner panel, it is possible to more effectively prevent the rear pillar from collapsing toward the interior of the vehicle.

〔Example〕

The present invention will be described in detail below based on examples thereof.

FIG. 2 is a perspective view of an open car 1 to which the rear body structure of an automobile according to the present invention is applied, in which a roll bar provided immediately behind a door 2 is attached as a rear pillar 3. A canopy is placed over the front or rear of the upper part of the rear pillar 3, or even both the front and rear, to provide sun protection and rain protection.

The rear pillar 3, as shown in FIG.
It is composed of a rear pillar inner panel 3A and a rear pillar outer panel 3B, and a closed cross section 3a is formed in the middle thereof. A pillar reinforcing member 8 extending vertically is attached to the rear pillar 3, and a belt line reinforcing member 17 extending longitudinally is attached to the belt line 4 rearward from the rear pillar 3.

The above-mentioned rear pillar 3 functions as a roll bar and supports the weight of the vehicle body to prevent large deformation of the vehicle body when the vehicle rolls over, so the roll bar is required to have high strength. On the other hand, since the car body does not have a roof, each member does not have a continuous annular structure in the longitudinal and width directions of the car, which increases the rigidity of the car body.
It is limited to each member of the lower vehicle body structure.
For this reason, stronger reinforcement is desired near the upper end of the side portion of the vehicle body.

By the way, in the vehicle body in this example, as shown in FIG. 1, the rear pillar inner panel 3A and the inner panel 6 are combined, and the rear pillar outer panel 3B and the rear fender panel 18 are combined. A closed space 28 is formed between the two connections.

The pillar reinforcing member 8 described above connects a portion of the rear pillar 3 near the belt line 4 and the floor panel 5 closer to the vehicle interior than the closed space 28, and forms a closed cross section 7 with the inner panel 6. It is installed to do so. In the illustrated example, a closed cross section 10 is formed by the reinforcing panel 9 on the floor panel 5 at the lower end of the pillar reinforcing member 8, and this closed cross section 10 is continuous with the closed cross section 7 of the pillar reinforcing member 8. An end of the reinforcing panel 9 is integrated with a lower end of the pillar reinforcing member 8.

On the other hand, at the rear of the rear package cage 11, a reinforcing panel 13 is applied to the rear package panel 12 from the inside and a rear outer panel 14 is applied from the rear to form a closed cross section 15, increasing the rigidity of that area. There is. Incidentally, this closed section 15 is formed so as to surround the rear package 11, and extends forward to the left and right along the belt line 4.

Such a closed cross section 15 and the upper part of the pillar reinforcing member 8 described above are the belt line that forms the closed cross section 16 with the inner panel 6 on the vehicle interior side of the belt line 4 with respect to the closed space 28 described above. They are connected by a reinforcing member 17. This belt line reinforcing member 17 is arranged substantially parallel to the belt line 4, and the cross section of the portion along the belt line 4 where the rear package panel 12 is present is as shown in FIG. 3, for example. .

That is, the lower end of the belt line reinforcing member 17 is fixed to the horizontal end of the rear package panel 12, and the upper end of the belt line reinforcing member 17 and the end of the rear package panel 12 are
Each is attached to the inner panel 6 by welding or the like.

In addition, the rear package panel 12 that constitutes the closed section 15 together with the rear outer panel 14 etc.
Although not shown, the rising portion 12a (see FIG. 1) is interrupted at a connection point with the belt line reinforcing member 17. However, since the inner panel 6 is rising up where it ends,
As shown in FIG. 3, the rear outer panel 14 and the inner panel 6 maintain a closed cross section 15 on the outer surface of the inner panel. A rear fender panel 18 is attached to the outside thereof, and the fixed portions of each panel forming each closed section 15, 16 are covered so that they cannot be seen from the outside.

In this example, a closed cross section 23 formed by the front end of the rear package panel 12 and the reinforcing panel 22 backed thereon is formed between the upper parts of the suspension tower parts 21 of the left and right rear wheels. A closed cross section 25 formed by a reinforcing panel 24 is also provided between the lower parts of the suspension tower section 21 so as to be parallel to this closed cross section 23, and
A vertical reinforcing panel 26 that forms a closed section by joining both closed sections 23 and 25 as necessary.
is attached along the suspension tower portion 21 to improve rigidity at the rear of the vehicle body.

According to the rear body structure of such an automobile, the pillar reinforcing member 8 reinforces the roll bar 3 located behind the door opening, and the belt line reinforcing member 17 extends along the belt line 4 to the side of the vehicle body. Reinforce. A closed cross section 7 formed by the pillar reinforcing member 8 and a closed cross section 15 formed at the rear part of the rear package 11 and extending along the left and right belt lines 4 are formed by the belt line reinforcing member 17. The belt line reinforcing member 17 is connected to the pillar reinforcing member 8 and the rear package 11 while reinforcing the peripheries of the belt line 4 and the rear package 11 so that they are connected through the closed cross section 16 of the vehicle body. The overall rigidity of the structure is increased.

Therefore, even if various forces are applied to the vehicle body while driving, the vehicle body structure can be made as strong as if it had a roof. Note that when the vehicle rolls over, the weight of the vehicle body is supported by the roll bar 3, and the above-mentioned reinforcement allows the roll bar to be able to sufficiently withstand the load.

The above was explained using a convertible car as an example,
Even in a normal type car that has a rear pillar formed at the same position as the roll bar, a pillar reinforcing member is attached to the inside of the rear pillar, and the closed section of the rear part of the rear package cage and the pillar reinforcing member are connected to the belt line. A reinforcing member for the belt line can be provided. Therefore,
In this case as well, the rigidity of the vehicle body can be further increased as in the case of an open car.

As can be seen from the above description of the embodiment, the part near the belt line of the rear pillar and the floor panel are connected by the pillar reinforcing member, and the closed cross section of the rear part of the rear package cage and the closed cross section formed by the pillar reinforcing member are connected by the belt. Since it is made to be continuous with the closed cross section formed by the line reinforcing member, it is possible to improve the strength of the door opening and the belt line opening in the rear pillar. In addition, since each reinforcing member is connected, the structure of the rear part of the vehicle body is further strengthened by interaction. Furthermore, the pillar reinforcing member is located on the vehicle interior side of the rear pillar inner panel, making it even more difficult for the rear pillar to fall toward the interior of the vehicle, thereby enhancing the reinforcement effect of the rear pillar.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the left half of the rear body structure of an automobile according to the present invention, Fig. 2 is an example of an open car to which the present invention is applied, and Fig. 3 is a panel at a location corresponding to the - line arrow in Fig. 1. FIG. 3 is a sectional view of the joint structure. 3...Rear pillar (roll bar), 3A...
Rear pillar inner panel, 3B...Rear pillar outer panel, 3a...Closed section, 4...Belt line, 5...Floor panel, 6...Inner panel, 7...Closed section, 8...Pillar reinforcement member , 11...Rear package cage, 15, 16...
...Closed section, 17...Reinforcing member for belt line, 1
8...Rear fender panel, 28...Closed space.

Claims (1)

[Claims for Utility Model Registration] A pillar reinforcing member extending vertically is attached to the rear pillar, which is composed of a rear pillar inner panel and a rear pillar outer panel and has a closed cross section, and the belt line behind the rear pillar is In the rear body structure of an automobile, in which a belt line reinforcing member extending longitudinally is attached, and the pillar reinforcing member and the belt line reinforcing member are connected, the rear pillar inner panel and the inner panel are coupled. and the rear pillar outer panel and the rear fender panel are joined together to form a closed space between the two joints, and the pillar reinforcing member connects a portion of the rear pillar near the belt line and the floor panel, The belt line reinforcing member is connected to the vehicle interior side of the closed space and forms a closed cross section with the inner panel, and the belt line reinforcing member is connected to the inner panel on the vehicle interior side of the belt line with respect to the closed space. , and a closed cross section formed by the pillar reinforcing member and a closed cross section formed at the rear part of the rear package and extending along the left and right belt lines are formed by the belt line reinforcing member. A rear body structure for an automobile, wherein the belt line reinforcing member is coupled to the pillar reinforcing member and the rear package so as to be connected through a cross section.