JP2578207B2 - Car body structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle body structure of an automobile, and more particularly to a vehicle body structure near a joint between a front floor panel and a rear floor panel.

2. Description of the Related Art Some automobiles are provided with piping 3 from a front floor panel 1 to a rear floor panel 2 as shown in FIGS. 3 to 5, for example.

A side member 4 is attached to the lower surface of the front floor panel 1, and a protector 5 made of resin or the like is attached to the inner side wall of the side member 4 and the front floor panel 1 with bolts 6, so that the protector 5 and the front floor panel 1 The pipes 3 are routed in a portion surrounded by.

The piping 3 is routed rearward from the front floor panel 1 along the vertical wall of the rear floor panel 2. This similar mechanism is disclosed, for example, in Japanese Utility Model Laid-Open No. 60-110080.

The pipes 3 exposed from the front floor panel 1 to the vertical wall of the rear floor panel 2 are obstacles 7 such as a median strip.
There is a problem that it is easy to interfere.

Accordingly, the present invention provides a vehicle body structure of an automobile that can prevent pipes from interfering with a road surface and suppress deformation of a floor panel.

Means for Solving the Problems A front edge of a rear floor panel having a vertical wall is joined to a rear edge of the front floor panel, and piping is arranged from a lower surface of the front floor panel along a lower surface of the vertical wall of the rear floor panel. And a cross member extending in the vehicle width direction is provided at an upper end of a vertical wall of the rear floor panel, and a side member having a length up to near a rear end is attached to the front floor panel. A protector having a hat-shaped cross section surrounding the piping from the lower side of the vehicle body, extending from the front floor panel along the vertical wall of the rear floor panel to the vicinity of the cross member, and a front end portion of the protector having the side member. Was attached to both floor panels so as to be located forward of the rear end.

Action For example, pipes along the vertical wall of the rear floor panel that easily interfere with the road surface protruding part such as the median strip are protected by a hat-shaped cross-sectional protector surrounding it, and the front end overlaps with the side member and the rear With this hat-shaped cross-section protector whose end extends to the vicinity of the cross member at the upper end of the vertical wall, the rigidity of the portion extending from the rear edge of the front floor panel to the vertical wall of the rear floor panel in the longitudinal direction of the vehicle body is increased. To be able to withstand the heavy load on

Embodiment An embodiment of the present invention will be described below with reference to FIG.

1 and 2, an anchor bracket 11 of a seat belt 10 is attached to a side wall of a floor tunnel 9 on a front floor panel 8.

Further, a side member 12 having a length up to near the rear end of the front floor panel 8 is attached to the lower surface of the bottom wall of the front floor panel 8.

The front edge of the rear floor panel 13 is joined to the rear edge of the front floor panel 8. Rear floor panel 13
Has a vertical wall 14 at the front end, and is connected to the front floor panel 8 so as to be connected to the front floor panel 8.
From the rear floor panel 13 is formed.

Reference numeral 15 denotes a cross member attached to the upper end of the vertical wall 14 and extending in the vehicle width direction.

On the lower surface side of the front floor panel 8 and the rear floor panel 13, piping 16 is arranged from the front floor panel 8 to the vertical wall 14 of the rear floor panel 13, and the piping 16 is a steel plate protector. 17 surrounds the lower side of the vehicle body. The protector 17 has a hat-shaped cross section from the front floor panel 8 to the rear floor panel 13.
Along the vertical wall 14 to the vicinity of the cross member 15, and its flange portion 18 is fastened with bolts 19 and nuts 20 and attached to the floor panels 8, 13.

Here, the front end of the protector 17 is
Is located forward of the rear end portion, so that the side member 12 and the protector 17 overlap when viewed from the side.

According to the structure of the above embodiment, the piping 16 along the vertical wall 14 of the rear floor panel 13 which is most likely to interfere with the obstacle 7 such as the median strip is protected by the protector 17, so that the piping 16 is damaged. Etc. can be prevented.

In addition, since the side members 12 and the protectors 17 are mounted in an overlapping manner, the surface rigidity extending from the front floor panel 8 to the vertical wall 14 of the rear floor panel 13 is increased. Even if an excessive input load (arrow F) acts from 11, the joint between the front floor panel 8 and the rear floor panel 13 will not be deformed as shown by the chain line in FIG. In other words, the occupant restraint performance of the seat belt 10 can be improved.

In this way, the pipes 16 are effectively used as a kind of reinforcement for effectively protecting the pipes 16 and increasing the rigidity of the floor panel.

The present invention is not limited to the above embodiment,
The present invention can also be applied to a protector for harnesses and the like in addition to piping.

Effects of the Invention As described above, according to the present invention, there is an effect that pipes along the vertical wall of the rear floor panel that are easily affected by road surface interference can be reliably protected by the protector.

In addition, the rigidity of the part extending from the rear edge of the front floor panel to the vertical wall of the rear floor panel in the longitudinal direction of the vehicle, along with the side members attached to the front floor panel, crosses from the front floor panel along the vertical wall of the rear floor panel. Even if a large load in the front-rear direction is applied to the front floor panel from the seat belt in the event of a vehicle collision, etc., the bent front floor The portion near the joint between the panel and the rear floor panel does not deform in the opening direction. Therefore, according to the present invention, it is possible to reliably increase the rigidity near the joint between the front floor panel and the rear floor panel where the bent portion is easily deformed in the opening direction due to the input load in the vehicle longitudinal direction.

[Brief description of the drawings]

FIG. 1 is a sectional explanatory view of one embodiment of the present invention, FIG. 2 is a perspective explanatory view of the same, FIG. 3 is a sectional explanatory view of a conventional technique, FIG. FIG. 2 is a partial side view of the vehicle. 8 Front floor panel, 12 Side member (member), 13 Rear floor panel, 14 Vertical wall, 15
Cross member, 16… Piping, 17… Protector.

Claims (1)

(57) [Claims] 1. A front edge of a rear floor panel having a vertical wall is joined to a rear edge of the front floor panel, and piping is arranged from a lower surface of the front floor panel along a lower surface of the vertical wall of the rear floor panel. In addition, in the vehicle body structure of an automobile, a side member having a length up to near a rear end is attached to the front floor panel, and a cross member extending in a vehicle width direction is provided at an upper end of a vertical wall of the rear floor panel. A protector having a hat-shaped cross section surrounding the piping from the lower side of the vehicle body extends from the front floor panel along the vertical wall of the rear floor panel to the vicinity of the cross member, and a front end of the protector extends behind the side member. A vehicle body structure for a vehicle, wherein the vehicle body structure is attached to the floor panels so as to be located forward of an end.