JPS6328707Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of an automobile door mounting wall.

[Prior Art] The joint between the windshield support part of the front pillar and the fender plate or dash plate is also the part where the upper hinge of the front door is attached.
Sufficient strength is required. However, since the structure generally consists of only one reinforcing plate superimposed between the pillar outer plate and the pillar inner plate, when the front door is opened and is blown by the wind, the hinge support of the vehicle body There is a risk that it may become twisted and deformed. Furthermore, even if the fender plate is crushed rearward during a frontal collision, which is relatively minor, the front pillar may be deformed and the windshield may be damaged.

As a reinforcement structure for a front pillar, for example, as disclosed in Japanese Utility Model Application Publication No. 55-36055, there is a structure in which a plate material constituting a front deck is joined to the outside of a front pillar with a closed cross section to form a closed cross section. However, this has the disadvantage that the cross-sectional shape of the front pillar becomes larger, which spoils the appearance of the car body.

In the front pillar disclosed in Japanese Patent Application Laid-Open No. 54-146321, an inner pillar plate is superimposed on the inside of a pillar outer plate (vehicle body side wall plate) that partitions the door opening, and a reinforcing plate is superimposed on the outer side of the pillar outer plate. They are simply connected to form a closed cross section. Pillar outer plate,
The pillar inner plate and the reinforcing plate are continuous from the roof portion to the side sill portion, and reinforcement is not focused on areas where it is particularly necessary. Therefore, to prevent the front pillar from twisting when the front door is blown by the wind, or from deforming the front pillar and damaging the windshield during a frontal collision,
No structure for reinforcing the front pillar is disclosed.

SUMMARY OF THE PRESENT DISCLOSURE In view of the above problems, an object of the present invention is to provide a door mounting wall structure for an automobile, which has a relatively small cross-sectional shape, high rigidity and strength, and is easy to assemble.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a structure in which a reinforcing plate is disposed from the lower half of the front pillar to an area of the upper door hinge mounting area, and The pillar is divided into a lower reinforcing plate disposed from the lower end of the pillar to the area of the side sill, and the lower part of the upper reinforcing plate and the upper part of the lower reinforcing plate overlap each other, and the inner plate of the pillar is formed in the overlapped part.
The edges of the upper and lower reinforcing plates and the pillar outer plate are stacked in four layers and combined into three closed sections.

[Function] At the hinge mounting portion of the front door 8, a reinforcing plate interposed between the pillar outer plate 5 and the pillar inner plate 6,
It is composed of an upper reinforcing plate 3 and a lower reinforcing plate 4, and the lower part of the upper reinforcing plate 3 and the upper part of the lower reinforcing plate 4 overlap each other and are combined into three closed sections, so the cross-sectional shape is relatively small. Sufficient rigidity to support the front door 8 can be obtained.

[Embodiment of the invention] As shown in Fig. 1, the invention relates to the structure of the part indicated by A at the connection part between the front pillar 9 and the fender 2 of the vehicle body, and the front door 8 is supported on this part. The top hinge is attached.

As shown in FIG. 2, the front pillar is configured to have a closed cross section by overlapping both side edges of a pillar outer plate 5 and a pillar inner plate 6 with each other. Specifically, the pillar inner plate 6 has a substantially U-shaped cross-section, while the pillar outer plate 5 has a wall surface 5a facing the edge of the front door 8.
and a stepped portion 5b as a relief when the front door 8 is opened.
It is equipped with The front edge side of the stepped portion 5b is covered by the fender plate 2.

At the windshield supporting portion of the front pillar 9, the pillar outer plate 5 has a substantially U-shaped cross section. Windshield Support Part Specifically, in the area from the lower half of the front pillar 9 to the upper door hinge attachment part, the upper reinforcing plate 3 is located between the pillar outer plate 5 and the pillar inner plate 6.
On the other hand, below the windshield support part, specifically from the lower end of the front pillar 9 to below the side sill area, the pillar outer plate 5 is integrally constructed with the dash plate 10, and the pillar inner plate 6 and A lower reinforcing plate 4 is sandwiched between the pillar outer plate 5 and the pillar outer plate 5.

According to the present invention, the lower portion of the upper reinforcing plate 3 and the upper portion of the lower reinforcing plate 4 are joined between the pillar outer plate 5 and the pillar inner plate 6 in an overlapping state. . As shown in FIG. 3, the lower edge 3b of the upper reinforcing plate 3 extends downward from the windshield support part to the inside of the fender plate 2, while the upper edge 4a of the lower reinforcing plate 4 extends further than the lower edge 3b. It extends upward to the windshield support.

As shown in FIGS. 2 and 4, at the front edge of the front pillar 9, the side flanges of the pillar outer plate 5, upper reinforcing plate 3, and pillar inner plate 6 are overlapped with each other,
Spot welded. The front edge of the lower reinforcing plate 4 is sandwiched between the pillar outer plate 5 and the upper reinforcing plate 3,
Preferably they are spot welded together.

As shown in FIGS. 2 and 3, the side edges of the pillar outer plate 5, lower reinforcing plate 4, upper reinforcing plate 3, and pillar inner plate 6 are overlapped and spot welded to each other.

The pillar inner plate 6 has an upper portion that supports the windshield and a lower portion that is integrally formed with the dash plate 10.

[Effects of the invention] As described above, the present invention includes an upper reinforcing plate disposed from the lower half of the front pillar to the upper door hinge attachment area, and an upper reinforcing plate disposed from the lower end of the front pillar to the side sill area. The lower part of the upper reinforcing plate and the upper part of the lower reinforcing plate overlap each other, and the edges of the inner pillar plate, upper and lower reinforcing plates, and outer pillar plate are separated at the overlapped part. Since the four panels are stacked together and combined into three closed cross sections, the rigidity of the front pillar against torsion and bending is strengthened, and the front door is pushed forward and the area around the hinge support of the front pillar is twisted, and in the event of a frontal collision, the front pillar will be able to withstand the twisting and bending of the front pillar. This prevents the front pillar from being crushed and damaging the windshield.

The stress that acts on the hinge support when opening and closing the front door is dispersed between the upper and lower reinforcement plates, reducing the strength burden on the vehicle body and preventing the front door from overlapping due to deformation of the hinge support when the front door is opened. Strokes are prevented.

Since the present invention can be assembled in the same way as the conventional one through the same steps, it has little effect on cost.

[Brief explanation of drawings]

Fig. 1 is a side view of the vehicle body showing the parts to which the present invention is applied, Fig. 2 is a plan cross-sectional view of the right door side of the door mounting portion of the automobile according to the present invention, and Fig. 3 is a side view of the same on the left door side. 4 are front sectional views taken along the line - in FIG. 2. 3: Upper reinforcement plate, 4: Lower reinforcement plate, 5: Pillar outer plate, 6: Pillar inner plate, 8: Front door.

Claims (1)

[Scope of utility model registration request] an upper reinforcing plate disposed from the lower half of the front pillar to the upper door hinge attachment area;
The front pillar is divided into a lower reinforcing plate disposed from the lower end of the front pillar to the side sill area, and the lower part of the upper reinforcing plate and the upper part of the lower reinforcing plate overlap each other, and the inner plate of the pillar is connected to the upper and lower parts at the overlapped part. A structure of an automobile door mounting wall portion, characterized in that each edge of a reinforcing plate and a pillar outer plate is stacked in four layers and combined into three closed cross sections.