JPH0442219Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a bulge hatch that is fixed to the upper surface of the hood of an automobile.

<Prior Art> As shown in FIG. 1, there is an automobile in which a bulge hatch 2 for air intake is fixed to the upper surface of a hood 1 of an automobile. The means for fixing this bulge hatch 2 is as follows:
This is a mounting structure in which a stud is provided on the bulge hatch 2 side, a bolt hole is opened on the hood 1 side, the stud is passed through the bolt hole, and the stud is tightened with a nut.

<Problems to be solved by the invention> By the way, the hood 1 is designed as a safety measure so that when a stronger load is applied to the front side of the hood 1 due to a frontal collision, etc., the hood 1 bends and deforms in a V-shape to absorb and alleviate the impact. is taken. As a means for this, for example, as shown in FIGS. 2 and 3, notches 3 are formed in the hood inner on the lower surface of the hood outer 1a constituting the hood 1 at substantially central both sides of the hood 1 in the longitudinal direction of the vehicle. It is installed in the direction perpendicular to the Therefore, in a hood to which a bulge hatch is not attached, when a strong load is applied to the front surface of the hood, the notch 3 bends and deforms in a V-shape to absorb the impact energy, but the hood 1
In the case where the bulge hatch 2 is fixed to the upper surface of the hood, the bulge hatch 2 acts to prevent the hood 1 from being bent and deformed, and the hood 1 may not be easily deformed and a sufficient impact energy absorption effect may not be obtained.

<Means for solving the problems> The present invention provides a bulge hatch mounting structure that improves the above-mentioned conventional problems, and its characteristic structure is that when a load is applied to the front of the hood due to a collision, etc. In the bulge hatch that is fixed to the upper surface of the hood, the hood has a bendable and deformable portion formed in advance so that the hood bends into a V-shape and absorbs shock.
The bulge hatch is provided with a thin portion that breaks following the deformation of the hood.

<Function> With the above configuration, when the hood starts to deform into a V-shape, the bulge hatch also breaks from the thin wall portion, allowing the hood to deform into a V-shape.

<Example> Hereinafter, an example of the present invention will be described based on FIGS. 4 to 6. The gist of the present invention is that the bulge hatch 2 is provided with a thin portion that breaks following the deformation of the hood 1.

As a specific example of the structure, as shown in FIGS. 2 and 4, a thin wall portion 6 formed by a groove is formed on the lower surface of the bulge hatch 2 on the same line as the notch 3 provided on the hood 1.
will be established.

Furthermore, as shown in FIG. 5, a thin section 7 formed by a V-notch may be provided at the base of the boss 8 of the stud bolt 4 on the side of the bulge hatch 2 for fixing the front and rear ends of the bulge hatch 2 to the hood 1. . 5 indicates nuts.

Since the present invention has the above-mentioned structure, a strong load is applied to the front of the hood 1 due to a frontal vehicle collision, etc.
When the hood 1 begins to deform into a U-shape with the notch 3 at its apex, in the case of the structure of the groove-shaped thin wall portion 6 provided in the bulge hatch 2 shown in FIG. 4, this thin wall portion 6 breaks. . In addition, in the structure in which the base of the boss 8 of the stud bolt 4 shown in FIG.
The base of the bulge hatch 2 and the hood 1 are separated.

Therefore, in any of the above, the bulge hatch 2 that prevents the hood 1 from deforming into a curved shape is
The hood 1 is bent or separated in accordance with the deformation of the hood 1, allowing the deformation of the hood 1, and sufficiently absorbing the collision energy.

<Effects of the invention> As described above, according to the invention, the simple structure in which the bulge hatch is provided with a thin-walled part that ruptures following the curved shape deformation of the hood prevents strong loads from being applied to the front of the hood in the event of a frontal vehicle collision, etc. When the hood is bent, the bulge hatch no longer restricts the bending deformation of the hood, which has the advantage of maintaining the bending deformation function of the hood.

[Brief explanation of drawings]

Fig. 1 is a side view of an automobile equipped with a hood to which a bulge hatch is attached, Fig. 2 is a partial perspective view of the hood with a bulge hatch, and Fig. 3 is Fig. 2-
FIG. 4 is a cross-sectional view taken along lines taken from FIG. 2, FIG. 5 is a cross-sectional view showing another embodiment of the present invention, and FIG. 6 is a cross-sectional view showing the operating state of FIG. 1...Hood, 2...Bulge hatch, 6,7...
...thin section.

Claims (1)

[Scope of utility model registration request] In a bulge hatch that is fixed to the upper surface of the hood, which has a bendable and deformable part formed in advance so that the hood bends in a V-shape and absorbs the impact when a load is applied to the front surface of the hood due to a collision, etc., the hood is attached to the bulge hatch. A bulge hatch characterized by having a thin-walled portion that ruptures following deformation.