JPH0327910Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to the structure of an automobile body, and particularly to the structure of the cab side.

(Prior Art) The body structure of an automobile is required to be as simple as possible from the viewpoint of ease of assembly and manufacturing cost. However, on the other hand, it is also necessary to consider issues regarding the formability and strength of the sheet metal, and these various conditions must be taken into consideration when designing the vehicle body structure.

As for strength issues, the side sills on the cabside are particularly susceptible to high stress, and strength in this area is often required. For this reason, for example, as disclosed in Japanese Utility Model Application Publication No. 58-76476, a structure has been proposed in which the side sill portion is strengthened by providing reinforcement inside the closed section formed by the side sill outer panel and the side sill inner panel. has been done.

On the other hand, recently, from the viewpoint of ease of assembly, a cab side outer panel is used in which the side sill outer section, hinge pillar outer section, and rear quarter outer section are integrally molded, and a cab side inner panel is joined to this to form a cab side structure. is often made. In this way, in the side sill part, the cab side outer panel and the cab side inner panel form a closed cross section extending in the front and rear of the vehicle body, and the strength of the side sill part can be improved. Since the outer panel is made by integrally molding the side sill outer part, the hinge pillar outer part, and the rear quarter outer part, the front and rear parts of the closed side sill section are connected to the lower part of the hinge pillar part and the lower part of the rear quarter part, and are opened at this part. However, the strength of the front and rear portions of the side sill closed section may be insufficient.

(Purpose of the invention) In view of the above circumstances, the present invention has been developed to provide sufficient strength even at the front and rear of the side sill closed section when the side sill outer part, hinge pillar outer part, and rear quarter outer part are integrally molded as a cab side outer panel. The object of the present invention is to provide an automobile body structure that provides the following.

(Structure of the invention) In the vehicle body structure of the invention, a side sill outer part, a hinge pillar outer part, and a rear quarter outer part are integrally molded as a cab side outer panel, and a side sill inner part is formed at the upper and lower ends of the side sill outer part of this outer panel. The panels are joined to form a side sill closed cross section that extends from the front and rear of the vehicle body, and reinforcements are placed within this side sill closed cross section to extend from the front and rear of the vehicle body, so that the front and rear parts of the side sill inner panel are connected to the rear surface of the front wheel house and the rear surface of the front wheel house, respectively. In addition to extending to the front of the rear wheel house, the front and rear parts of the reinforcement are also extended to match the front and rear extensions of the side sill inner panel, and the upper and lower ends of the reinforcement extension are extended to the side sill inner panel. At the same time, the reinforcement extension is bulged outward from the vehicle, and the closed section formed by this bulge and the extension of the side sill inner panel is connected to the side sill closed section, and the rear It is characterized by forming a closed cross-sectional structure of the side sill part that continues to the front of the wheel house.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing the vehicle body structure of the cab side portion according to the present invention, and arrow F indicates the front of the vehicle body. In this embodiment, on the cab side, a side sill outer part 11 located on the lower side of the vehicle body, and a hinge pillar outer part 12 located on the front side of the vehicle body.
A cab side outer panel 10 is formed by integrating a roof rail outer portion 14 located on the upper side of the vehicle body and a rear quarter outer portion 13 located on the rear side of the vehicle body. A side sill inner panel 30 is provided on the inside of the vehicle body, facing at least the side sill outer part 11 of this cab side outer panel 10.
It is attached by joining the top and bottom ends of 1. As a result, in the side sill portion, the side sill inner panel 30 and the side sill outer portion 11 form a closed cross section extending in the front and rear of the vehicle body.

The side sill inner panel 30 has a front portion extending to the rear surface 41 of the front wheel house and a rear portion extending to the front surface of the rear wheel house, but the hinge pillar outer portion 12 of the cab side outer panel 10 extends upward. , the closed cross section of the side sill part opens upward at the connection part with the hinge pillar outer part 12 at the front part thereof,
Since the rear quarter outer portion 13 also extends upward, the closed section of the side sill portion opens upward at the connection portion with the rear quarter outer portion 13 at the rear thereof. For this reason, the problem that the strength of the front and rear portions of the side sill portion is insufficient tends to occur.

In the present invention, a reinforcement 20 extending from the front and back of the vehicle body is disposed within the closed section to prevent the above-mentioned insufficient strength from occurring. This reinforcement 20 has a shape shown in FIG. 2, and the upper and lower ends of the central portion 23 are the upper and lower ends of the side sill inner panel 30 and the upper and lower ends of the side sill outer portion 11 of the cab side outer panel 10 in the side sill closed cross section. They are joined together to form the strength of the closed section. Furthermore, the front and rear parts of the reinforcement 20 are arranged to extend to the lower part of the hinge pillar and the lower part of the rear quarter, respectively.

At the bottom of the hinge pillar, follow the arrow A in Figure 1.
- As shown in FIG. 3, which is a cross-sectional view along line A,
The front part of the reinforcement 20 extending into the lower part of the hinge pillar has an upper end 21a and a lower end 21.
c, each side sill inner panel 30
At the same time, the front central part 21b of the reinforcement 20 is bulged out to the outside of the vehicle, and the side sill inner panel 30 and the reinforcement 20 form a closed section at the lower part of the hinge pillar. A structure is formed. This closed cross section extends rearward and enters the closed cross section of the side sill part, and as a result, the closed cross section of the side sill part can be continuously extended forward to the rear surface of the front wheel house.
This can compensate for the lack of strength in the front of the side sill.
In addition, it is more preferable in terms of strength to join the front bulging portion 21b of the reinforcement 20 and the lower part of the hinge pillar outer portion 12 by spot welding or the like (the location indicated by 51 in the figure). In this case, spot marks remain on the surface of the hinge pillar outer part 12, but
This part is covered by the front fender, so
There are no problems with appearance.

On the other hand, in the lower part of the rear quarter, as shown in FIG. 4, which is a cross-sectional view taken along arrow B-B in FIG.
2c are joined to the upper and lower ends 32a and 32b of the rear part 32 of the side sill inner panel 30, respectively, and are connected to the rear central part 22 of the reinforcement 20.
b is bulged outward from the vehicle, and the side sill inner panel 30 and reinforcement 20 form a closed cross-sectional structure located below the rear quarter. This closed section extends forward and enters the closed section of the side sill section, and as a result, the closed section of the side sill section can be continuously extended rearward to the front of the rear wheel house. It can also compensate for the lack of strength in the rear.

In addition, in the front part of the reinforcement 20, an example was shown in which the strength is further improved by joining with the outer surface of the hinge pillar outer part 12, but in the rear part of the reinforcement 20, the outer surface of the rear quarter part 13 is connected to the outer surface of the vehicle body. Therefore, it cannot be joined to the outer surface of the rear quarter section 13 due to appearance problems, but the rear upper surface of the side sill outer section 11 and the upper surface of the rear bulge of the reinforcement 20 (marked at 52 in FIGS. 1 and 2) It is preferable to spot-weld the parts (as shown) to strengthen them.

(Effects of the invention) As explained above, according to the invention, in a structure in which the hinge pillar outer part, the side sill outer part, and the rear quarter outer part are integrated to form a cab side outer panel, the side sill outer part The side sill inner panel, which is joined to the side sill to form a closed section at the side sill section, is extended forward and backward, and the reinforcement arranged within this closed section is also extended forward and backward, and the front and rear sections formed by the side sill inner panel and reinforcement are extended forward and backward. Since the closed section of the side sill is continuous from the rear surface of the front wheel house to the front of the rear wheel house, the strength and rigidity of the side sill can be improved without reducing the strength of the front and rear parts of the side sill. .

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the car body structure of the cab side part according to the present invention, Fig. 2 is a perspective view showing reinforcement used in the car body structure shown in Fig. 1, and Figs. 3 and 4 are the car body structure shown in Fig. 1. FIG. 3 is a cross-sectional view of the structure taken along arrows AA and BB, respectively. 10... Cab side outer panel, 11...
Side sill outer part, 12... Hinge pillar outer part, 13... Rear quarter outer part, 20...
Rain reinforcement, 30...Side sill inner panel.

Claims (1)

[Claims for Utility Model Registration] 1. Between a cab side outer panel in which a side sill outer part, a hinge pillar outer part, and a rear quarter outer part are integrally molded, and the side sill outer part joined to the upper and lower ends of the side sill outer part. A side sill inner panel that forms a side sill closed cross section extending from the front and back of the vehicle body, and a reinforcement that extends from the front and rear of the vehicle body within the side sill closed cross section, and the front part of the side sill inner panel extends to the rear surface of the front wheel house. The front and rear parts of the reinforcement are extended in correspondence with the front and rear extensions of the side sill inner panel, and the rear part is extended to the front of the rear wheel house, and the front and rear parts of the reinforcement are extended to correspond to the front and rear extensions of the side sill inner panel, and The upper and lower ends of the reinforcement are joined to the extension of the side sill inner panel, and the extension of the reinforcement is bulged outward from the vehicle, and the reinforcement is formed by the bulge and the extension of the side sill inner panel. A vehicle body structure for an automobile, characterized in that the side sill closed section is continuous from the rear surface of the front wheel house to the front surface of the rear wheel house. 2. A request for registration of a utility model characterized in that the bulge at the front of the reinforcement is joined to the hinge pillar outer part, and the bulge at the rear of the reinforcement is joined to the rear quarter outer part. The vehicle body structure of the vehicle described in scope 1.