JPS6321506Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Detailed explanation of the invention] This invention relates to the improvement of the rear floor of an automobile.
It comprises a rear floor extension attached to the side of the rear floor pan along the longitudinal direction of the vehicle body, and mounting parts including a rear floor side member and a rear wheel house inner having at least a U-shaped cross section and attached to the rear floor extension, A letter-shaped rear floor side member is arranged along the rear floor extension so that the opening of the rear floor side member faces the side of the vehicle body, and at least a part of the rear floor side member overlaps the rear floor extension. The object of the present invention is to provide a rear floor of an automobile, characterized in that the rear floor side members and at least a part of the attachment parts are connected together to form a closed cross-section structure.

The rear floor of the automobile of the present invention is constructed as described above, and the entire rear floor pan is divided into a rear floor pan and a rear floor extension, and the mounting parts are attached to the rear floor extension, so that the shape of the rear floor pan is When the dimensions change, there is no need to change the shape or dimensions of the mounting parts, and the mounting parts can be shared by all vehicle models.

In addition, the rear floor of the vehicle according to the present invention has a rear floor extension between the rear floor pan and the mounting parts, so that when lowering the floor surface in the truck space area, there is no need to deep draw the rear floor pan. It is possible to improve the workability of floor surface reduction.

In addition, in the rear floor of an automobile according to the present invention, the rear floor extension and the mounting parts are connected in a facing state, and that part becomes a strong member of the closed structure, so rear floor side member reinforcement can be eliminated or minimized. .

Further, in the rear floor of the automobile according to the present invention, the rear floor pan can be extended close to the attached parts, and the living space for the occupant can be increased. Additionally, the rear floor pan can be extended closer to the attached parts, increasing truck space. Further, there is no need to cut out the relevant portion of the rear floor side member, so material costs can be reduced. Furthermore, the joining line between the rear floor pan and rear floor extension can be made straight, making welding easier. Furthermore, it has the effect of creating a degree of freedom in setting the floor surface, and is very useful when applied to the rear floor of an automobile.

Next, the rear floor of an automobile according to the present invention will be explained with reference to an embodiment shown in FIGS. 1 to 7. 1 is one type of rear floor pan out of a plurality of types of rear floor pans having different sizes and shapes depending on the vehicle model, and 2 is a rear floor pan of the present invention. Among multiple types of rear floor extensions with different sizes and shapes, one type of rear floor extension corresponds to the above-mentioned rear floor pan 1, and the same rear floor extension 2 is spot-welded to both left and right sides of the above-mentioned rear floor pan 1, These are the left and right sides of the rear floor pan 1. The shape of the rear floor side member assembly side (the front side in FIG. 1) of the rear floor extension 2 is common to all vehicle models. The above are non-common parts.
The following are the installation parts (common parts). That is, 3 is a rear floor side member having a U-shaped cross section, 4 is a rear wheel house inner, 5 is a rear floor side member outer, 6 is a rear floor side sill, 7 is a spring support bracket, 8 is a spring support reinforcement, and 9 is a pipe support bulk. 10 is a pipe support reinforcement, 11 is a rear floor side brace, and these attachment parts (rear floor side member assembly) 3 to 11 are spot welded and assembled into one piece. In addition, by providing a gap in a part of the joint part of the mounting parts 3 to 11 or by providing a hole in a part of the mounting parts 3 to 11, the mounting parts 3 to 11
The coating is applied to the inner surface of the steel to prevent rust from forming. 12 in FIG. 4 is a trunk space, 13 is a spare tire, 14 in FIG. 6 is a passenger accommodation space, 15 is a seat cushion space, and 16 is a fuel tank.

As described above, the rear floor of an automobile of the present invention includes a rear floor extension 2 attached to the side of the rear floor pan 1 along the longitudinal direction of the vehicle body, a rear floor side member 3 attached to the rear floor extension 2 and having at least a U-shaped cross section; Mounting parts 3 to 1 including rear wheel house inner 4
1, the rear floor side member 3 having a U-shaped cross section is disposed along the rear floor extension 2 such that the opening of the rear floor side member 3 faces the side of the vehicle body, and the rear floor extension 2 are overlapped and combined, and the rear floor side member 3 and the mounting parts 3 to 11 are combined together.
Since a closed cross-sectional structure is formed by at least a portion of the structure, the following effects can be achieved.

That is, the rear floor of a conventional automobile is shown in FIG. 8, which shows a cross section taken along line A-A in FIG. 2, FIG. 9, which shows a cross section taken along line B-B, and FIG. , Fig. 11 showing a cross section of the D-D line portion (Fig. 11 is a side view of the same part), and E-E
As is clear from FIG. 12, which shows the cross-section of the line portion, the entire rear floor pan 1', including the portion corresponding to the rear floor extension 2 of the present invention, is constructed of a single plate. If the dimensions and shape of the rear floor pan 1' were changed, the dimensions and shapes of the mounting parts had to be changed, making it impossible to share the mounting parts. It comprises a rear floor extension 2 attached to a side part along the longitudinal direction of the vehicle body, and attachment parts 3 to 11 including at least a rear wheel house inner 4 attached to the rear floor extension 2,
A rear floor side member 3 having a U-shaped cross section is arranged along the rear floor extension 2 so that the opening of the rear floor side member 3 faces the side of the vehicle body, and at least a part of the rear floor side member 3 and the above are arranged. Rear floor extension 2
The rear floor side member 3 and at least a part of the mounting parts 3 to 11 form a closed cross-section structure.In other words, the entire rear floor pan is combined with the rear floor pan 1 and the rear floor extension 2. Since the mounting parts 3 to 11 are attached to the same rear floor extension 2, there is no need to change the shape and dimensions of the mounting parts 3 to 11 when the shape and dimensions of the rear floor pan 1 change. Mounting parts 3 to 11 can be shared by all vehicle models.

Furthermore, in the conventional rear floor of an automobile, the entire rear floor pan 1' including the portion corresponding to the rear floor extension 2 of the present invention is constituted by a single plate as described above. If you try to lower the floor surface in the section ', you have to deep draw it, which makes it difficult to process the lowering of the floor surface in the truck space 12' section. As is clear, there is a rear floor extension 2 between the rear floor pan 1 and the mounting parts 3 to 11, and when lowering the floor surface for the truck space 12 part, there is no need to deep draw the rear floor pan 1, Workability for lowering the floor surface of the space 12 portion can be improved.

Furthermore, in the rear floor of a conventional automobile, of the rear floor side members 3' attached to the left and right sides of the rear floor pan 1', the suspension is attached to the parts shown in Figures 10, 11, and 12 (shaded in Figure 11). Since the section) has a cross-sectional shape, it is necessary to reinforce this section with the rear floor side member reinforcement 17. However, as is clear from FIGS. 5 to 7, the rear floor of the automobile of the present invention has a rear floor extension 2 and the attachment parts 3 to 11 are joined in a facing state, and that part becomes a strong member of a closed structure, so that the rear floor side member reinforcement 17 can be eliminated or reduced to the necessary minimum.

In addition, in the conventional rear floor of an automobile, the passenger accommodation space 14' of the rear floor pan 1' is bent diagonally upward from quite in front of the rear floor side member 3', as shown in FIG.
Then, it is bent horizontally, and a dead space 18 is created between the rear floor pan 1' and the rear floor side member 3', and the passenger living space 14' is narrowed by 19. As shown in FIG. 6, the rear floor pan 1 can be extended close to the attachment parts 3 to 11, and the occupant living space 14 can be increased. Note that 20 in FIG. 6 and 20' in FIG. 11 are seat belt reinforcements.

Furthermore, in the conventional rear floor of an automobile, the trunk space 12' portion of the rear floor pan 1' is bent diagonally upward from well in front of the rear floor side member 3', and then bent horizontally, as shown in Figure 9. , 21, the trunk space 12' becomes narrower, but in the rear floor of the automobile of the present invention, the rear floor pan 1 can be extended close to the attachment parts 3 to 11, as shown in FIG. 4, and the trunk space 12 can be increased.

In addition, in the conventional rear floor of an automobile, only the portions shown in Figures 10, 11, and 12 of the rear floor side member 3' are shaped like a U-shape, with one side of the U-shape cut off. However, in the rear floor of an automobile according to the present invention, there is no need to cut out the relevant portion of the rear floor side member 3, and the cost of materials can be reduced.

Further, in the rear floor of the automobile according to the present invention, the connecting line between the rear floor pan 1 and the rear floor extension 2 (see 22 in FIG. 7) can be made straight,
Welding can be easily performed. It also has the effect of providing a degree of freedom in setting the floor surface (see 23 in FIG. 7), and is very useful when applied to the rear floor of an automobile. Note that 24 in FIG. 8 is a bumper stay, and 25 is a bumper stay reinforcement.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of an automobile rear floor according to the present invention, Fig. 2 is a perspective view showing its assembled state, and Fig. 3 is a longitudinal section taken along the arrow A-A line in Fig. 2. Front view, Figure 4 is taken from arrow B-B in Figure 2.
A vertical sectional front view taken along the line, FIG. 5 is taken from arrow C- in FIG. 2.
A vertical sectional front view along line C, Figure 6 is taken from arrow D in Figure 2.
7 is a longitudinal sectional front view taken along the line D, and FIG. 7 is a longitudinal sectional front view taken along the line E-E in FIG.
11 and 12 are longitudinal sectional front views of the rear floor of a conventional automobile shown in correspondence with FIGS. 3 to 7, and FIG. 11 is a side view of the portion shown in FIG. 11. 1...Rear floor pan, 2...Rear floor extension, 3-11...Mounting parts, 3...Rear floor side member, 4...Rear wheel house inner, 5...Rear floor side member outer,
6... Rear floor side sill, 7... Spring support bracket, 8... Spring support reinforcement, 9... Pipe support bulkhead, 10... Pipe support reinforcement, 11... Rear floor side brace.

Claims (1)

[Scope of utility model registration request] A rear floor extension attached to a side portion of the rear floor pan along the longitudinal direction of the vehicle body, and attachment parts including a rear floor side member and a rear wheel house inner having at least a U-shaped cross section and attached to the rear floor extension,
The rear floor side member having a U-shaped cross section is arranged along the rear floor extension so that the opening of the rear floor side member faces the side of the vehicle body, and at least a part of the rear floor side member and the rear floor extension A rear floor of an automobile, characterized in that the rear floor side members and at least a part of the attachment parts form a closed cross-section structure by overlapping and joining the rear floor side members.