JPS6242860Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to vehicle body structures such as passenger cars and truck cabs.

[Prior Art] In order to meet the diverse demands of consumers, many vehicle types and models with different equipment are produced, and one of the factors that greatly influences manufacturing costs is the vehicle body structure. That is, in the past, if the dimensions of the vehicle body were different, large press molded products such as floor plates and rocker members would not be compatible, resulting in a huge cost for producing press molds for each vehicle model. In addition, when a common molding line is used to produce a wide variety of products in small quantities, there is a problem in that it takes time and effort to replace molds in press machines, which reduces the operating rate of the equipment.

As shown in Figure 1, the conventional car body structure has a floor plate 2.
A flange 2a is formed on the side edge of the flange 2a.
a is overlapped with the side wall of the inner plate 3 of the rocker member 40 and joined by welding. Then, flanges 3a and 3b are formed on the upper and lower edges of the inner plate 3, and these have a cross section of C.
It is constructed by overlapping edge flanges 4a and 4b of a letter-shaped outer plate 4 and joining them by welding.

In such a conventional car body structure, the car width is equal to the floor plate 2.
Therefore, the floor plate 2 must be manufactured completely separately for each car type, and it is difficult to reduce manufacturing costs when producing a wide variety of products in small quantities.

Furthermore, if a common floor plate or the like is used for different car models, the effective width of the footwell of the floor plate will be restricted, resulting in cars that are similar in size and cannot fully demonstrate their marketability.

[Problems to be solved by the invention] Therefore, the purpose of the invention is to use the floor plate, the inner and outer panels of the rocker members as common parts, and to change the width of the car from a small car to a wide car by simply changing the assembly dimensions. The objective is to provide a car body structure that enables production of up to regular cars and reduces manufacturing costs.

[Means for Solving the Problems] In order to achieve the above object, the structure of the present invention is such that an overlapping joint portion between the outer plate and the inner plate of the rocker member having a box-shaped cross section is provided on the inner wall of the vehicle body. The side edges of the floorboards are sandwiched between the overlapping joints and joined together.

[Function] The side edge of the floor plate 21 is inserted between the overlapping portion of the flange 45 of the outer plate 41 and the flange 32 of the inner plate 30 in the inner wall portion of the rocker member 40 to join them, and the amount of insertion is adjusted. This makes it possible to manufacture car bodies with different widths from standardized parts.

[Example of the invention] To explain the invention based on an example, as shown in FIG. A propeller shaft is now placed on the side. The side edge of the floor plate 21 is bent downward to form a vertical wall 22, and the lower edge thereof is bent at a right angle to form a flange 23. Inner plate 3
0 is provided with a side wall 31 on the lower side of the floor plate 21, and a flange 32 that is overlapped and connected to the floor plate 21 at the upper edge of the side wall 31.
is formed, while the lower end side of the side wall 31 is bent horizontally and outward at a substantially right angle to form a bottom wall 33,
Furthermore, a flange 34 is formed by bending the end edge at a right angle.

The outer plate 41 is bent into a substantially inverted U-shape, and a flange 45 formed at one end of the outer plate 41 is overlapped with the aforementioned flange 32 with the floor plate 21 interposed therebetween and joined by welding. In addition, a flange 4 formed on the other end edge
4 is overlapped with the aforementioned flange 34 and connected by welding.

To explain in more detail, the inside of the outer panel 41 is provided with an inclined wall 46 that is inclined with respect to the floor plate 21 in consideration of getting on and off, and the outside is provided with an inclined wall 46 that contacts the door and takes into account the removal of rainwater, etc. A sloped wall 42 is provided that slopes outward. This inclined wall 4
2 is connected to a curved wall 43 that is exposed to the outside of the vehicle body and curved toward the center of the vehicle body. A flange 44 is formed at the lowermost part of the curved wall 43, and is overlapped and joined to the flange 34 of the inner plate 33 at the lowermost part so as not to spoil the external appearance.

By configuring the heights of the vertical walls 22 of the floor plate 21 and the side walls 31 of the inner plate 30 to be equal, the edge of the floor plate 21 is shaped like a box of the rocker member 40 surrounded by the inner plate 30 and the outer plate 41. The effective width W of the vehicle body can be adjusted depending on the amount of insertion.

In actual assembly, the flange 23 of the floor plate 21 is welded to a predetermined position on the bottom wall 33 of the inner plate 30, and then the flanges 32, 3 of the inner plate 30 are welded to the bottom wall 33 of the inner plate 30.
4, the flanges 45 and 44 of the outer plate 41 are overlapped and connected.

Fig. 2 shows a car with a standard width, but as shown in Fig. 3, the vertical wall 22 of the floor plate 21 and the inner plate
The vehicle width can be maximized by overlapping the side walls 31 of the vehicle. In addition, as shown in FIG.
A hollow space 2 whose edges are surrounded by an inner plate 30 and an outer plate 41
0, that is, by increasing the distance between the side wall 31 and the vertical wall 22, a narrow vehicle shape can be obtained.

[Effects of the invention] As described above, the present invention provides an overlapping joint between the outer plate and the inner plate of the rocker member having a box-shaped cross section on the inner wall of the vehicle body, and connects the side of the floorboard between the overlapping joint. Since the edges are sandwiched and connected, the width of the vehicle can be freely set by adjusting the amount of insertion of the floorboard into the rocker member. Since the inner and outer panels of the floorboard and rocker parts are standardized, there is no need for press dies for each car model, which not only reduces equipment costs, but also eliminates the need to replace dies, which improves the operation rate of the press molding line. is improved.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of a conventional car body structure, Fig. 2 is a front sectional view of a car body structure according to the present invention, and Figs. 3 and 4 show car bodies of different widths using the same molded parts. FIG. 3 is a front sectional view showing an assembled state when manufacturing. 21: Floorboard, 22: Vertical wall, 23, 32, 3
4, 44, 45: flange, 31: side wall, 33:
Bottom wall, 40: Rotsuka member.

Claims (1)

[Claims for Utility Model Registration] (1) An overlapping joint between the outer and inner plates of a rocker member having a box-shaped cross section is provided on the inner wall of the vehicle body, and a side edge of the floor plate is provided between the overlapping joint. A car body structure characterized by sandwiching and joining. (2) As stated in claim (1) of the utility model registration, the bottom wall of the inner board is configured to be flat, and the side edge of the floor board is bent downward so as to be overlapped with the bottom wall. body structure.