JPH0334385Y2 - - Google Patents

Description

[Detailed Description of the Invention] -Field of Industrial Application- The present invention relates to an automobile body structure, and particularly to an engine hood structure.

-Prior Art- As is well known, as shown in FIGS. 6 to 8, an engine hood constituting an automobile body has an engine hood outer panel 1 which is an outer panel.
and an engine hood inner panel 2 joined to the lower part of this engine hood outer panel 1. In order to reliably transmit the external force transmitted to this engine hood to the vehicle body via a hood hinge (not shown). , hood hinge reinforcements 3L and 3R are interposed between the engine hood outer panel 1 and the engine hood inner panel 2 to reinforce the hood hinge mounting portion (a similar structure is disclosed in Japanese Utility Model Application Publication No. 160977/1983). That is, these hood hinge reinforcements 3L, 3R are of an inverted hat type, which are incorporated into the space R formed between the engine hood outer panel 1 and the engine hood inner panel 2, as shown in FIGS. 6 and 7. It is formed into a cross section, and is formed as an elongated member extending toward the front of the vehicle body from the attachment portion of the hood hinge to the engine hood along both lower sides of the engine hood outer panel 1. These hood hinge reinforcements 3L and 3R are connected to the engine hood outer panel 1 and the engine hood inner panel 2.
As shown in FIG. 7, prior to assembly with the engine hood inner panel 2, it is spot welded to the upper surface of the engine hood inner panel 2, so that the external force applied to the engine hood during a frontal collision of the automobile is transferred to the rear lower surface of the engine hood inner panel 2. It can be reliably transmitted to the hood hinge that is fixed to the hood hinge.

-Problems to be solved by the invention- However, although the rigidity of the engine hood is strengthened on both sides of the rear part by interposing these hood hinge reinforcements 3L and 3R,
As shown by arrow F in FIG. 6, when a large external force F is applied to the front center of the engine hood due to a frontal collision of a car, the rear centers 1a and 2a of the engine hood outer panel 1 and the engine hood inner panel 2, which have poor rigidity, are deformed. The rear center 1a,
2a interfered with the vehicle, forcing the replacement of not only the deformed engine hood but also part of the vehicle body panel.

The purpose of this invention is to take into consideration the problems of the conventional engine hood structure as described above, and to prevent deformation of the rear center of the engine hood even when an external force is applied to the front center of the engine hood. First,
To obtain an engine hood structure that can reliably transmit the same external force to a hood hinge.

-Means for Solving the Problems- In order to achieve this object, the present invention provides an engine hood structure in which a hood hinge reinforcement is arranged between both rear sides of an engine hood outer panel and an engine hood inner panel. It is proposed that a hood reinforcement extending along the vehicle width direction of the outer panel be provided between the rear end portions of the engine hood outer panel and the engine hood inner panel.

-Embodiment- Hereinafter, details of an embodiment of the present invention will be explained with reference to FIGS. 1 to 5.

1 to 3 show a first embodiment of the present invention, and the same structural parts as those in FIG. 6 described above regarding the conventional art are designated by the same reference numerals. That is,
The engine hood consists of an engine hood outer panel 1, which is an outer panel, and an engine hood inner panel 2, which is fixed to the bottom surface of the engine hood outer panel 1.A pair of hood hinge reinforcements are provided on both rear sides of the engine hood. 3
It is exactly the same in that the rigidity is strengthened in L and 3R. In the first embodiment, the rear center portions 1a, 2a of the engine hood are reinforced with a hood reinforcement 4 integrally molded with the hood hinge reinforcements 3L, 3R. This hood reinforcement 4 includes hood hinge reinforcements 3L arranged along both lower sides of the engine hood,
It extends in the vehicle width direction with the rear parts of the 3R connected, and as shown in Figure 3, the engine hood outer panel 1 and the engine hood inner panel 2.
It is placed in the space R between the rear parts of the engine hood and is spot welded to the upper surface of the engine hood inner panel 2. In other words, hood hinge reinforcement 3L,3
R and hood reinforcement 4 are all “ko”
The hood reinforcement 4 is integrally molded in a shape with a reverse hat-shaped cross section and spot welded to the upper surface of the engine hood inner panel 2 prior to assembly of the engine hood outer panel 1 and the engine hood inner panel 2. The transmitted external force F is transmitted to the hood hinge reinforcements 3L and 3R.

Since the first embodiment has the above structure,
The hood hinge reinforcements 3L, 3R not only strengthen the rigidity of both sides of the engine hood, but also the hood reinforcement 4 reinforce the rear center portions 1a, 2a of the engine hood. Therefore, if an external force F acts on the front center of the engine hood during a frontal collision of a car,
Since the signal is transmitted to the hood reinforcement 4 at the rear of the engine hood, the rear central portions 1a and 2a of the engine hood are prevented from deforming and interfering with vehicle body panels such as the cowl box. In the case of this frontal collision, the external force F transmitted to the hood reinforcement 4 is transmitted to the hood hinge (not shown) via the hood hinge reinforcements 3L and 3R, which are integrated with the hood reinforcement 4. This will ensure that the information is transmitted from the hood hinge to the vehicle body.

FIG. 4 shows a second embodiment of the present invention.
R is left and right hood hinge reinforcement 3L,
3R is molded in two pieces, each of which is integrally molded. That is, these hood reinforcements 4L and 4R are connected to each hood hinge reinforcement 3.
The state in which the rear end of L and 3R extends in the vehicle width direction, in other words, the compatible hood hinge reinforcement 3L,
3R and are integrally molded into an "L" shape.

Therefore, according to the structure of the second embodiment, the hood reinforcements 4L and 4R extending in the vehicle width direction along the rear part of the engine hood prevent the deformation of the rear center 1a and 2a of the engine hood, and prevent the engine hood from deforming. The external force F applied to the center of the front surface of the hood can be reliably transmitted to the vehicle body panel via the hood hinge, and the same effects as in the first embodiment can be obtained. In addition, in the second embodiment, the hood reinforcements 4L and 4R are divided into two parts and integrally molded into the hood hinge reinforcements 3L and 3R.
Compared to the first embodiment, the molding die can be made smaller and the manufacturing cost of the mold can be reduced.

FIG. 5 is a perspective view corresponding to FIG. 4 of a third embodiment of the present invention. In this embodiment, a hood rainforest 4A extending in the vehicle width direction along the rear part of the engine hood is provided on both sides of the engine hood. It is molded completely separately from each hood hinge reinforcement 3L, 3R arranged at the rear end. Therefore, although the hood reinforcement 4A in this embodiment is not directly coupled to the hood hinge reinforcements 3L and 3R, the hood hinge reinforcement 3
L, 3R and the hood reinforcement 4A are spot welded to the upper surface of the engine hood inner panel 2, so the external force F applied to the front center of the engine hood during a collision is received by the hood reinforcement 4A. Hood hinge reinforcement 3 via engine hood inner panel 2
Since the signal is transmitted to L and 3R, the same effect as in the first embodiment can be obtained. Furthermore, since the hood reinforcement 4A in this embodiment is molded independently from the hood hinge reinforcements 3L and 3R, the existing molds for the hood hinge reinforcements 3L and 3R can be molded without being discarded. There is also the advantage that the present invention can be implemented simply by manufacturing a mold for the hood reinforcement 4A.

-Effects of the invention- As is clear from the above explanation, according to the invention, by arranging the hood reinforcement extending in the width direction of the vehicle at the rear of the engine hood, the hood is placed in the center of the front of the engine hood in the event of a frontal collision. This has the effect of preventing the rear center of the engine hood from deforming due to an applied external force, and ensuring that the external force received by the hood reinforcement is transmitted to the hood hinge via the hood hinge reinforcement.

[Brief explanation of the drawing]

1 is an exploded perspective view of an engine hood according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line - in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line - in FIG. FIG. 4 is an overall perspective view of a hood rainforth according to a second embodiment of the present invention, FIG. 5 is an overall perspective view of a hood rainforth according to a third embodiment of the present invention, and FIG. 6 is a perspective view of a conventional engine hood. An exploded perspective view, FIG. 7 is a sectional view taken along the - line in FIG. 6, and FIG. 8 is a sectional view taken along the - line in FIG. 6. 1... Engine hood outer panel, 2... Engine hood inner panel, 3L, 3R... Hood hinge reinforcement, 4, 4L, 4R... Hood reinforcement.

Claims (1)

[Scope of utility model registration request] In an engine hood structure in which a hood hinge reinforcement is placed between the rear of both sides of the engine hood outer panel and the engine hood inner panel, the hood hinge extending along the vehicle width direction of the engine hood outer panel is placed between the engine hood outer panel and the engine hood inner panel. An engine hood structure characterized by being provided between the panel and the rear end.