JPS6226170A - Hood for automobile - Google Patents

Abstract

PURPOSE:To prevent a gap between an insulator and a hood main body from taking place by making a radius of curvature for the insulator larger than that for the hood main body. CONSTITUTION:A hood main body 12 is composed of an outer panel 12a made of a steel plate, and of a reinforcing inner panel 12b which is fixed on the back of said panel. The insulator 13 is formed so that its radius of curvature is larger than that of the hood main body 12. The insulator 13 is fitted onto the hood main body 12 by a process of fixing the side ends 13a of the insulator 13 on the inner panel 12b of the hood main body 12 with the plural number of clips 14 for pressing the center section 13b on the back of the hood main body 12 with pressure because of an elastic force.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a hood that covers the engine compartment of an automobile, and particularly to a hood equipped with an insulator that absorbs engine noise.

2. Description of the Related Art Hitherto, as this type of automobile hood, the ones shown in FIGS. 4 and 5, for example, have been known. This hood 1 includes an insulator 3 made of glass wool, for example, attached to the back side of a hood main body 2 made of a steel plate. This hood main body 2 has an inner panel 2b attached to the back side of an outer panel 2a to reinforce it.
It is formed with an appropriate curvature according to each vehicle type. On the other hand, the insulator 3 is formed to have substantially the same curvature as the curvature of the hood body 2, and is fixed to the inner panel 2b of the hood body 2 with a large number of clips 4. The insulator 3 absorbs engine noise and reduces the noise inside the vehicle (see Japanese Patent Laid-Open No. 12457/1983).

However, in such a conventional food 1,
Since the insulator 3 with low rigidity is formed to have approximately the same curvature as the curvature of the hood body 2, this insulator 3
If only the end edge portion 3a of the hood is fixed with the clip 4, the center portion 3b may sag due to its own weight, and a gap may be generated between the hood body 2 and the hood body 2. Therefore, conventionally,
The center portion 3b of the insulator 3 also needs to be fixed with the clip 4, which leads to an increase in the number of parts of the clip 4, and there are problems in that the installation workability is also poor.

In order to solve this problem, the present invention provides an automobile hood in which an elastically deformable insulator of approximately the same size as the hood body is attached along the back surface of the hood body. , forming the insulator to have a larger curvature than the curvature of the hood body, fixing the end edge of the insulator to the hood body, and pressing the center part of the insulator against the back surface of the hood body with elastic force; Accordingly, the automobile hood is characterized in that the insulator is attached to the back side of the hood main body.

Sueigo Hereinafter, the present invention will be explained based on examples.

FIG. 1 and FIG. 2 are diagrams showing one embodiment of the present invention.

First, the structure will be described. Reference numeral 11 in the figure is a hood that covers the engine room of an automobile.

The hood main body 12 is formed by fixing a reinforcing inner panel 12b to the back side of an outer panel 12a made of a steel plate, and is set to have an appropriate curvature depending on each vehicle type. On the other hand, the insulator 13 absorbs engine noise, is made of, for example, glass wool, and has substantially the same size as the hood body 12, and has elasticity. This insulator 13 is molded using a press mold, for example.
The curvature thereof is formed to be larger than the curvature of the hood body 12. The end edge portion 13a of the insulator 13 is fixed to the inner panel 12b of the hood body 12 with a plurality of clips 14, and the center portion 13b is pressed against the back surface of the hood body 12 by elastic force, so that the insulator 13 is It is attached to the hood body 12.

The hood 11 having such a configuration is assembled as follows. That is, the insulator 13 is
Because it is shaped larger than the curvature of.

When the end edge 13a of the insulator 13 is fixed to the hood body 12 with the clip 14, the insulator 13 is disposed along the back surface of the hood body 12, and the insulator 13 is extended to the curvature of the hood body 12. Then, since an elastic force acts on the insulator 13 to return to its original curvature, the central portion 1
3b is pushed upward in the figure, and this central portion 13b is pressed against the central portion 12c of the hood body 12.

Therefore, when installing the insulator 13 on the back side of the hood body 12.

It is not necessary to fix the central portion 13b with the clip 14 as in the conventional case, and the number of parts can be reduced and the work process can be simplified.

By the way, the curvature of the insulator 13 is
If the curvature of this insulator 13 is larger than that of
It is also possible to install it as shown in the modification shown in FIG.

That is, one end edge 13a of the insulator 13 is fixed to the inner panel 12b of the hood body 12 with the clip 14, and the other end edge 13a is inserted into the support hole 12d formed in the inner panel 12b of the hood body 12. By supporting the insulator 13 with the hood body 1
It is placed on the back side of 2. In this way, the insulator 13 is stretched to the curvature of the hood body 12, and as a result,
The insulator central portion 13b is urged upward and pressed against the back surface of the hood body 12, while the end edge 13a inserted into the support hole 12d is urged downward. Therefore, there is no need to fix the end edge 13a of the insulator 13 on the side of the support hole 12d with the clip 14, and the number of parts can be further reduced and the ease of installation and installation can be further improved than in the above embodiment.

In the above embodiment, the insulator 13 is fixed with the clip 14, but the insulator 13 is not limited to this, and it goes without saying that the insulator 13 can be fixed using an adhesive. In this case as well, there is no need to bond the insulator central portion 13b, reducing material costs and improving bonding workability.

As explained above, according to the present invention, since the curvature of the insulator is formed larger than the curvature of the hood body, when this insulator is attached to the hood body,
This has the practical effect of preventing gaps between the insulator and the hood body, reducing the number of clips used to fix the insulator, and improving installation workability. do.

[Brief explanation of drawings]

1 and 2 are diagrams showing one embodiment of the automobile hood of the present invention. FIG. 1 is an exploded cross-sectional view of the hood body and the insulator, and FIG. 2 is an assembled hood body and insulator. 3 is a sectional view showing a modification of the above embodiment, FIGS. 4 and 5 are views showing a conventional example, FIG. 4 is an exploded perspective view of the hood main body and an insulator, and FIG. The figure is a sectional view corresponding to FIG. 1. 11...Hood 12...Hood body 13
...Insulator 13a...Edge portion 13b...
・Central part 1st factor 11・-Hood 12-Hood body 13-
Insulator 13a-1 end edge 13b-1 center part

Claims (1)

[Scope of Claims] An automobile hood comprising an elastically deformable insulator of approximately the same size as the hood body is attached along the back surface of the hood body, wherein the insulator has a curvature larger than the curvature of the hood body. By molding the insulator into a shape, fixing the end edge part of the insulator to the hood body, and pressing the center part of the insulator against the back surface of the hood body by elastic force,
A hood for an automobile, characterized in that the insulator is attached to the back side of the hood main body.