JPS6315099Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a vehicle body structure in which a darts panel cross member that supports a darts panel is improved.

In a frameless vehicle body, a dash panel cross member is installed between front side members, and the lower end of the dash panel is supported by the dash panel cross member. This dash panel cross member is installed at the boundary between the engine room and the driver's cab, and has an L-shaped cross section. The sloped portion of the dash panel is fixed to flanges provided at the upper and lower edges of the dash panel cross member.

However, since the dash panel cross member has a structure in which the plate body is bent into an L-shaped cross section, its strength is weak and it may deform. Furthermore, a cavity having a triangular cross section is formed between the darts panel cross member and the darts panel, and there is a drawback that noise propagated through the air from the front side member leaks into the driver's cab.

This idea was devised by paying attention to the above circumstances, and its purpose was to improve the rigidity of the darts panel cross member, and to ensure that the closed end plate installed to improve the rigidity was designed to allow air to flow away from the front side member. The objective is to provide a vehicle body structure that can eliminate propagating noise.

This invention will be explained below based on an embodiment shown in the drawings. FIG. 1 shows the engine room of an automobile, and 1, 1 is a front side member. The front side members 1, 1 are provided with front fender shield inners 2, 2 and front fender shield outerers 3, 3. In addition, the above front side members 1, 1
A dash panel cross member 4 is installed between them and supports the dash panel 5. moreover,
The upper part of this dash panel 5 is fixed to a cowl top inner panel 6.

Further, as shown in FIGS. 2 and 3, the front side member 1 is integrally provided with a connecting portion 7 that projects in a direction perpendicular to the direction in which the front side member 1 extends. The joint portion 7 has an L-shaped cross section, and flanges 8a and 8b are provided at its upper and lower edges. And these flange parts 8a, 8
A straight line a connecting points b is inclined, and this inclination angle α is made to coincide with the inclined surface 5a of the dash panel 5. The dash panel cross member 4 also has an L-shaped cross section, similar to the connecting portion 7, and has flange portions 9a and 9b at its upper and lower edges. Further, triangular closed end plates 10, 10 (only one is shown) are integrally formed at both ends of this darth panel cross member 4, and these closed end plates 10, 10 have the above-mentioned flange portions 9a, 9b. An integral end flange portion 11 is formed. And these closed end plates 10,
10 serves as the back head of the dash panel cross member 4. Both ends of the dash panel cross member 4 are overlapped with the connecting portion 7 of the front side member 1, and this overlapping portion 12 is fixed by spot welding. When the front side members 1, 1 and the dash panel cross member 4 are connected in this way, and the dash panel 5 is further fixed to the flanges 9a, 9b, there is a gap between the dash panel cross member 4 and the dash panel 5. Cavity 13 with triangular cross section
is formed, but this cavity 13 is connected to the closed end plate 1
0 and 10, the sound propagating through the air from the front side members 1 and 1 can be effectively cut off. Reference numeral 14 designates a working hole opened in the dash panel 5, through which the front side members 1, 1 and the dash panel cross member 4 can be spot-welded by inserting the work hole 14. When the working hole 14 is opened in the dash panel 5, the mechanical strength of the dash panel 5 at that part is reduced, but since the closed end plate 10 is located near the working hole 14, the dash panel 5 can be reinforced.

As explained above, in this invention, a darts panel cross member having closed end plates integrally provided at both ends is superimposed on the joint part of the front side member, and both ends are superimposed and fixed to the joint part. The closed end plate not only increases the rigidity of the dash panel cross member, but also suppresses the sound propagating through the air from the front side member, thereby preventing noise from leaking into the driver's cabin. play.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a perspective view showing the engine compartment of a car.
The figure is a perspective view showing a state in which the front side member and the dash panel cross member are connected, and FIG. 3 is an exploded perspective view. 1...Front side member, 4...Dutch panel cross member, 5...Dutch panel, 7
...Joining portion, 10...Closed end plate.

Claims (1)

[Scope of utility model registration request] In a vehicle body structure in which a darts panel cross member is installed between front side members and the darts panel is supported by this darts panel cross member, the front side member has a cross section of L.
The dash panel cross member is bent into an L-shaped cross section, and closing end plates are integrally provided at both ends of the dash panel cross member so as to close the opening of the dash panel cross member. is installed, a working hole is drilled in the darts panel located near both ends of the said darts panel cross member, and both ends of the said darts panel cross member are connected to the joining part of said front side member through this working hole. A vehicle body structure characterized by overlapping and fixing by spot welding at multiple locations along an L-shaped surface.