JP2004050909A - Hood structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hood structure capable of absorbing an external force by deforming a hood-lock reinforcement when the external force or larger one than a predetermined value is applied to the hood. <P>SOLUTION: The hood-lock reinforcement 4 is provided between a hood outer panel 2 and a hood inner panel 5. A vertical wall part 4a and an inclined wall part 4b are formed on the hood-lock reinforcement 4. The inclined wall 4b is further raised up diagonally toward the back part of a vehicle from the upper end of the vertical wall 4a via a folded part 4c and extended to the hood outer panel back side. When the external force F or larger one than the predetermined value is applied to the hood, the hood reinforcement 4 is deformed by the folded part 4c, and accordingly, the external force F is absorbed and dumped. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure of a hood (bonnet) in a vehicle such as a passenger car, and particularly to a structure of a hood lock reinforcement provided in the hood.
[0002]
[Prior art]
In general, the hood of the vehicle, that is, the front hood, is formed by a hood outer panel 11 and a hood inner panel 14 joined to an edge of the hood outer panel 11 so as to have a space inside as shown in FIGS. In the space between the hood outer panel 11 and the hood inner panel 14, a hood lock reinforcement 13 for reinforcing a lock mechanism 12 provided on the front side of the hood 10 is provided. Here, FIG. 5 is a schematic view of the hood 10 of the conventional vehicle as viewed from the back, and FIG. 6 is a cross-sectional view taken along line AA of FIG. The lock mechanism 12 is fixed to the hood lock reinforcement 13 as shown in the figure, and engages with a body (not shown) to regulate opening and closing of the hood.
[0003]
In this example of the vehicle, as shown in FIG. 6, vertical wall portions 13 a and 14 a are respectively formed at the rear end of the hood lock reinforcement 13 and the hood inner panel 14. The vertical wall portion 13a of the hood lock reinforce 13 is formed in a planar shape, is disposed so as to be substantially perpendicular to a horizontal plane as shown in the drawing, and has an upper end extending to the rear side of the hood outer panel 11. I have. Similarly, the vertical wall portion 14a of the hood inner panel 14 is also formed in a planar shape, and is bent rearward in the vicinity of the back surface of the hood outer panel 11 and disposed at a predetermined interval. With this configuration, the rigidity of the hood 10 is increased.
[0004]
With the above configuration, it is assumed that the vehicle collides with an obstacle or the like, and that the external force (that is, the impact force) F from the upper side, for example, an obliquely upward rearward direction acts on the hood 10 as shown in FIG. However, since the planar vertical wall portions 13a and 14a provided in the hood 10 are hard to deform, the hood 10 exhibits high rigidity and maintains its shape.
[0005]
[Problems to be solved by the invention]
However, when the vehicle collides with, for example, a person (particularly, a child), a strong impact force may be applied to the hood outer panel 11 on the vertical walls 13a and 14a by the head or the like. If the vertical wall portion 13a of the hood inner panel 14 and the vertical wall portion 14a of the hood inner panel 14 are hard, the hood panel is unlikely to be deformed.
[0006]
In view of the above, the present invention provides a hood structure in which, when an external force equal to or more than a predetermined value is applied to the hood, the hood lock reinforce is configured to be deformable so as to absorb and attenuate a load due to the external force. The purpose is to provide.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is characterized in that in a hood structure in which a hood lock reinforcement is provided between a hood outer panel and a hood inner panel, the hood lock reinforcement is configured to be capable of absorbing a shock.
[0008]
In the above configuration, a bent portion is formed in the hood lock reinforce, and when an external force equal to or more than a predetermined load is applied to the hood, the hood lock reinforce deforms at the bent portion and absorbs and attenuates the external force. And
[0009]
In order to achieve the above object, the present invention provides a hood structure in which a hood lock reinforcement is provided between a hood outer panel and a hood inner panel, the hood lock reinforcement having at least a vertical wall portion and an inclined wall portion. The inclined wall portion is further raised obliquely from the upper end of the vertical wall portion toward the rear of the vehicle through the bent portion and extends to the rear side of the hood outer panel, and an external force of a predetermined load or more. Is applied to the hood, the hood lock reinforcement is deformed by the bent portion between the vertical wall portion and the inclined wall portion, thereby absorbing and attenuating the external force.
[0010]
In the above configuration, preferably, a part of the hood inner panel is formed on a slope that rises obliquely toward the rear of the vehicle, and a gap between the hood inner panel and the hood lock reinforcement is expanded, whereby the inclination of the hood lock reinforcement is increased. When the wall is bent downward, it is configured not to abut against the slope of the hood inner panel.
[0011]
According to the hood structure of the present invention, the high-rigid hood lock reinforce is configured to be capable of absorbing the impact, so that even if the vehicle collides with a person, for example, a child, the child's head collides with the hood outer panel, The hood lock reinforcement is configured to absorb the impact force and deform, that is, to deform the hood when a load equal to or more than a predetermined load is applied. As a result, strong pressure on the head is absorbed and attenuated, so that a strong impact is not applied. Therefore, even when the vehicle collides, the injury value can be reduced.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a back surface of a hood 1 according to an embodiment of the present invention, and FIG. 2 is an end view taken along line AA of FIG. The hood 1 is composed of a hood outer panel 2 and a hood inner panel 5 joined at the edge of the hood outer panel 2 so as to have a space inside. The hood 1 is formed of the hood outer panel 2 and the hood inner panel 5. A hood lock reinforce 4 for reinforcing a lock mechanism 3 provided on the front side of the hood 1 is disposed in the space S between the hoods. The lock mechanism 3 is fixed to the hood lock reinforcement 4 as shown in the figure, and engages with a body (not shown) to regulate opening and closing of the hood.
[0013]
As described above, the hood lock reinforce 4 is provided in the space S defined between the hood outer panel 2 and the hood inner panel 5, and one end is fastened on the tip side of the hood inner panel 5 and the other. The end extends to the hood outer panel 2 and is in contact with the back side thereof. Further, the lock mechanism 3 is fixed to a substantially horizontally extending portion of the hood lock reinforce 4 near the front end side of the hood lock reinforce 4.
[0014]
FIG. 3 is a schematic view showing a part of the hood lock reinforce 4 according to the embodiment of the present invention. As shown in this figure, the hood lock reinforce 4 has at least a vertical wall portion 4a and an inclined wall portion 4b. It is configured as follows.
The vertical wall portion 4a has a substantially planar shape, and extends substantially perpendicularly from a portion extending substantially horizontally to the rear side of the vehicle from one end of the hood inner panel 5 of the hood lock reinforcement 4 connected to the front end side thereof. And is disposed at an intermediate portion between the hood outer panel 2 and the hood inner panel 5, as shown in FIG. Similarly, the inclined wall portion 4b also has a substantially sloped shape, and as shown in FIG. 2, is raised obliquely from the upper end of the vertical wall portion 4a toward the rear of the vehicle to form the hood outer panel 2 and the hood inner panel 5. The front end extends to the rear side of the hood outer panel 2 and is in contact with the rear side.
[0015]
Further, as shown in FIG. 3, the vertical wall portion 4a and the inclined wall portion 4b are integrally connected via a bent portion 4c. That is, the hood lock reinforcement 4 is formed to be bent at a position about the middle of its length. Since the hood lock reinforcement 4 is formed to be bent in this way, as shown by a dashed line in FIG. 2, when a load equal to or more than a predetermined load is applied to the hood outer panel 2 of the hood 1, the hood lock reinforcement 4 comes into contact therewith. The inclined wall portion 4b is further bent downward at the bent portion 4c.
[0016]
On the other hand, as shown in FIG. 2, the hood inner panel 5 is also formed to have a slope that rises obliquely toward the rear of the vehicle. That is, the hood inner panel 5 is joined to the hood outer panel 2 at the distal end, and then extends substantially horizontally rearward so as to have an interval with the hood outer panel 2, and is bent upward at the rear of the lock mechanism 3, It is being started up diagonally. With this configuration, the distance between the hood lock reinforce 4 and the hood inner panel 5 is increased, and a wide space S is formed between the hood inner panel 5 and the hood lock reinforce 4. This space S is preferably such that it does not hinder the movement of the inclined wall portion 4b when it is bent downward by receiving an impact force, that is, the stroke of rotation about the bent portion 4c of the inclined wall portion 4b is preferably set. It is defined so that it can be secured sufficiently.
In this way, for example, when a person's head collides against the hood outer panel 2 of the hood 1 and a load equal to or more than a predetermined load is applied, the inclined wall portion 4b abutting the load is further lowered by the bent portion 4c. When bent, it is configured not to come into contact with the hood inner panel 5.
[0017]
Next, the operation of the hood 1 according to the embodiment of the present invention will be described.
When an obstacle, for example, the head of a person collides with the hood 1 and an external force F acts on the hood 1, the load is transmitted to the hood lock reinforcement 4 abutting on the back of the hood outer panel 2. In the hood lock reinforcement 4, since the bent portion 4c is formed at a position about the middle of the length, the inclined wall portion 4b is further bent downward at the bent portion 4c by the external force F. As described above, when the hood lock reinforce 4 is deformed by the external force F, the load is absorbed by the hood lock reinforce 4 and is attenuated.
When the external force F is large, the entire hood lock reinforce 4 moves further downward as indicated by a dashed line in FIG.
[0018]
As described above, according to the hood structure according to the embodiment of the present invention, even if the vehicle collides with a person and the head or the like collides with the hood outer panel 2, the hood lock reinforcement 4 absorbs the external force F and is deformed. Therefore, since the hood 1 is deformed, it is not necessary to give a strong impact. This can reduce damage to obstacles such as the injury value of a person colliding with the vehicle.
[0019]
As described in detail above, the present invention can be implemented in various forms without departing from the spirit of the invention. For example, the elastic force of the bent portion 4c of the hood lock reinforcement 4 and the inclination angle of the inclined wall portion 4b can be set arbitrarily.
[0020]
【The invention's effect】
According to the hood structure of the present invention, the high-rigid hood lock reinforce is configured to be capable of absorbing the impact, so that even if the vehicle collides with a person, for example, a child, the child's head collides with the hood outer panel, The hood lock reinforce absorbs external force and deforms, and can attenuate the external force. As a result, a strong impact is not given to the child. Therefore, the injury value of the person colliding with the vehicle can be reduced.
[Brief description of the drawings]
FIG. 1 is a diagram illustrating a back surface of a hood according to an embodiment of the present invention.
FIG. 2 is an AA end view of FIG. 1;
FIG. 3 is a schematic diagram showing a hood lock reinforce according to an embodiment of the present invention.
FIG. 4 is a diagram for explaining an operation of the hood structure according to the embodiment of the present invention.
FIG. 5 is a diagram showing the back of a conventional hood.
6 is an AA end view of FIG. 5;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hood 2 Hood outer panel 3 Lock mechanism 4 Hood lock reinforce 4a Vertical wall part 4b Inclined wall part 4c Bending part 5 Hood inner panel F External force

Claims (4)

In a hood structure with a hood lock reinforcement between the hood outer panel and the hood inner panel,
A hood structure wherein the hood lock reinforce is configured to be capable of absorbing a shock. A bent portion is formed in the hood lock reinforce, and when an external force equal to or more than a predetermined load is applied to the hood, the hood lock reinforce deforms at the bent portion and absorbs and attenuates the external force. Item 4. A hood structure according to item 1. In a hood structure with a hood lock reinforcement between the hood outer panel and the hood inner panel,
The hood lock reinforcement is configured to have at least a vertical wall portion and an inclined wall portion,
The inclined wall portion is further raised obliquely from the upper end of the vertical wall portion toward the rear of the vehicle via a bent portion and extends to the hood outer panel rear side,
When an external force equal to or more than a predetermined load is applied to the hood, the hood lock reinforcement is deformed by the bent portion between the vertical wall portion and the inclined wall portion, thereby absorbing and attenuating the external force. Hood structure. By forming a part of the hood inner panel on a slope that rises obliquely toward the rear of the vehicle, and increasing the distance between the hood inner panel and the hood lock reinforcement, the inclined wall portion of the hood lock reinforcement is formed. 4. The hood structure according to claim 3, wherein the hood structure is configured so as not to come into contact with a slope of the hood inner panel when bent downward.

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