JP4479581B2 - Food panel - Google Patents

Description

  The present invention relates to a hood panel for a vehicle.

  As the structure of the hood panel in the upper part of the engine room of an automobile or the like, the hood panel outer disposed outside the upper surface of the vehicle body and the hood panel inner disposed on the engine room side on the lower surface of the hood panel outer are integrated. The thing which comprised the food panel as is known. In this way, the hood panel forms a closed cross section and secures rigidity by overlapping and connecting the hood panel outer and the hood panel inner.

  The types of the food panel inner include a bone type and a wave type. The bone-type hood panel has openings at a plurality of locations of the hood panel inner, and the shape of the hood panel inner is a lattice-shaped bone shape.

  In the corrugated type hood panel, a plurality of corrugated beads are provided in the hood panel inner, and the shape of the cross section of the hood panel inner is corrugated. This wave type hood panel secures rigidity by connecting the hood panel outer and the hood panel inner with a closed cross-sectional structure through a space. An example of such a corrugated type hood panel is disclosed in Patent Document 1 below.

JP 2003-205866 A

  However, in the hood panel disclosed in Patent Document 1, in which the beads are arranged in a V shape, the ends of some of the beads intersect on the center line in the vehicle width direction of the hood panel inner. As a result, a butt portion is formed. For this reason, it is difficult to set the amount of deformation of the hood panel inner when an external force is applied from the upper part of the hood at the time of collision, and unexpected deformation may occur at the time of collision.

  On the other hand, high-performance sports cars, etc. use hood panels made of aluminum to improve driving performance and vehicle performance, and introduce air into the engine room to cool the heat of the engine and radiator. It is necessary to make a hole for releasing hot air in the engine room.

  However, in the hood panel disclosed in Patent Document 1, aluminum is used for the hood panel, and a hole is made so that the wave shape is divided and the head impact is reduced when the wave shape is broken and collides with a pedestrian. The effect will be reduced.

  In addition, with bone-type hood panels, when aluminum is used to reduce weight, the thickness must be increased to ensure strength and rigidity, and the weight reduction effect is reduced. As a result, the thickness of the outer edge of the hood is also increased, and the head impact mitigating effect of the outer edge of the hood is reduced. Furthermore, since the usage amount of an expensive aluminum material increases, cost will increase.

  Accordingly, it is an object of the present invention to provide a hood panel that ensures strength and rigidity and that considers pedestrian protection.

A hood panel according to a first invention for solving the above-mentioned problems (corresponding to claim 1) is a hood panel comprising a hood panel outer and a hood panel inner disposed on the back surface of the hood panel. An opening serving as an air passage is provided in the panel outer and the hood panel inner, and a corrugated bead extending from the front to the rear is provided in the hood panel inner, and the opening in the hood panel inner divides the corrugated bead. And providing a bead that overlaps the opening side end of the corrugated bead in the width direction of the hood panel inner on at least one side of the opening of the hood panel inner. Features.

  A second invention for solving the above-mentioned problem (corresponding to claim 2) is characterized in that, in the hood panel according to the first invention, the number of the corrugated beads divided by the opening is within two. And

  According to a third invention (corresponding to claim 3) for solving the above-mentioned problems, in the hood panel according to the first invention or the second invention, a frame is provided at the periphery of the opening of the hood panel outer. It is characterized by.

  A fourth invention for solving the above-mentioned problems (corresponding to claim 4) is the hood panel according to any one of the first to third inventions, wherein the hood panel outer and the hood panel inner are opened. The shape of the part is a substantially parallelogram.

According to the first aspect of the present invention, there is provided a hood panel comprising a hood panel outer and a hood panel inner coupled to the back surface thereof, wherein the hood panel outer and the hood panel inner are provided with openings, and the hood panel inner is rearward from the front. The opening in the hood panel inner is arranged so as to divide the undulating bead, and the opening in the hood panel inner is arranged so as to span the divided undulating bead. By providing the bead at the portion, the opening can be disposed without reducing the strength and rigidity.

  Further, at the time of a collision with a pedestrian, the impact force can be quickly transmitted to the rear end portion of the hood provided with the hinge having high rigidity of the hood panel inner and the front end portion of the hood provided with the striker. Thereby, the head impact reduction effect at the time of colliding with a pedestrian can be improved. Furthermore, the impact reduction effect at the time of colliding with a pedestrian can be improved because the plate | board thickness of the outer edge part of a food panel inner fell.

  According to the second aspect of the present invention, if beads are provided on both sides of the opening, the divided corrugated bead can always be provided with a spanning bead, and the effects of the first aspect of the invention can be achieved. .

  According to the third aspect, by providing the frame at the periphery of the opening of the hood panel outer, the rigidity of the opening of the hood panel outer and the opening of the hood panel inner can be increased. Thus, even when the corrugated bead is divided, the frame transmits an impact force to the corrugated bead together with the spanning bead at the time of a collision with a pedestrian, and the hood having a high rigidity hinge of the hood panel inner The impact force can be quickly transmitted to the hood front end portion including the rear end portion and the striker. In addition, a wave-type bead that is divided and cannot be provided by a bead to be passed over (for example, there are three or more wave-type beads that are divided and is divided at the middle part of the opening regardless of both sides of the opening). If there is a wave-shaped bead), the frame transmits the impact force.

  According to the fourth invention, the shape of the opening of the hood panel outer and the hood panel inner is a substantially parallelogram, so that the side extending from the front to the rear of the opening is parallel to the corrugated bead and the effect of the bead The air in the engine compartment can be discharged more efficiently by increasing the length of the side extending in the vehicle width direction.

  An embodiment of a hood panel according to the present invention will be described with reference to FIGS. 1 is a perspective view of a hood panel inner, FIG. 2 is a perspective view of a hood panel outer, FIG. 3 is a perspective view of an air inlet garnish, FIG. 4 is a perspective view of an air inlet lean reinforcement, and FIG. 5 is a perspective view of an air outlet outer. 6 is a perspective view of the air outlet inner, FIG. 7 is a cross-sectional view of the hood panel inner and the hood panel outer, and FIG. 8 is a perspective view of the front portion of the vehicle body. In the figure, Fr indicates the front of the vehicle, In indicates the inner side in the vehicle width direction, and Up indicates the upper side of the vehicle.

  A peripheral structure of the hood panel inner according to the present embodiment will be described. As shown in FIG. 8, a hood panel outer 11 that covers the engine room 10 and forms a part of the main body of the vehicle body is disposed on the upper surface of the engine room 10 on which the engine 29 of the automobile is mounted.

  On the lower surface of the hood panel outer 11, there is a hood panel inner 12 so as to overlap with the hood panel outer 11, and these are hemming, riveting, bolting, welding or resin bonding with each other at the outer peripheral part or the like. As combined. Hinges 13 are attached in the vicinity of both ends of the hood panel inner 12 on the vehicle width direction outer side of the end on the vehicle body rear side, and the hood panel inner 12 forms a vehicle body skeleton via the hinge 13. Combined with the frame inner 14.

  The hood panel inner 12 and the hinge 13 and the hinge 13 and the front upper frame inner 14 are coupled by bolting or welding or the like, whereby the hood panel inner 12 and the hood panel outer 11 coupled to the hood panel inner 12 are The hinge 13 is supported so as to be rotatable about the opening / closing axis of the hinge 13 and can be opened / closed in the vertical direction.

  A striker 15 is attached to a substantially central portion in the vehicle width direction at an end of the hood panel outer 13 at the front of the vehicle body, and passes through a striker through hole 36 (see FIG. 1) provided in the hood panel inner 12 to engine. It protrudes to the room 10 side. The striker 15 is provided with a mounting portion. The striker 15 and the hood panel outer 11 are coupled by bolting or welding.

  A hook 17 is attached to the upper surface of the front end upper bar 16, which is a vehicle body frame extending in the vehicle width direction in front of the engine room 10, in the vehicle width direction center. The hook 17 is connected to a lever provided in the vehicle interior by a wire or the like, and the hook 17 is opened and closed by operating this lever.

  When the hook 17 is hooked on the striker 15, the hood panel outer 11 and the hood panel inner 12 coupled to the hood panel outer 11 are coupled to the front end upper bar 17.

  Hereinafter, the food panel according to the present embodiment will be described. As shown in FIG. 1, the vicinity of the end of the hood panel inner 12 on the vehicle rear side is coupled with a hinge 13 (see FIG. 8) to ensure high rigidity. Moreover, since the edge part of the vehicle front side of the hood panel inner 12 is couple | bonded with the hood panel outer 11 to which the striker 15 (refer FIG. 8) is attached, high rigidity is ensured.

  The hood panel inner 12 has a sine wave shape, and when the hood panel inner 12 is divided into left and right at the center in the vehicle width direction, a total of six cycles of waves (hereinafter referred to as a wave bead 18). It is comprised by. The corrugated bead 18 is arranged so as to be inclined from the center side in the vehicle width direction toward the outside as it goes from the front to the rear.

  A concave groove portion 21 is provided at the apex portion of the corrugated bead 18 in parallel with the corrugated bead 18, and when the cross section of the groove portion 21 is seen in the AA cross section of FIG. 1, as shown in FIG. 7. It has a shape. The hood panel inner 12 and the hood panel outer 11 are in contact with each other in the vicinity of the edge of the groove portion 21, and these are joined or just in contact with each other by welding and resin as an adhesive. In the present embodiment, the groove portion 21 is provided at the apex portion of the corrugated bead 18, but a structure may be adopted in which a clearance is secured between the apex portion of the corrugated bead 18 and the hood panel outer 11 without providing the groove portion 21. Is possible.

  As shown in FIG. 1, an opening 22 is provided in a delta portion between the left and right corrugated beads 18 without the corrugated beads 18. The opening 22 has a substantially trapezoidal shape, and the hypotenuse 22a has a tangent curve and an arctangent curve. The food panel inner 12 is produced by pressing an aluminum material, and the opening 22 is formed by drilling press processing, laser processing, or the like.

  As shown in FIG. 2, the hood panel outer 11 combined with the hood panel inner 12 is also provided with an opening 23 in the same manner. The opening 23 of the hood panel outer 11 is provided with an air inlet garnish 24 (see FIG. 3) having an outer shape so as to be fitted to the opening 23.

  As shown in FIG. 3, a recess 25 is provided on the upper surface of the air inlet garnish 24, and a bottom surface 25 a of the recess 25 is inclined rearward. The surface of the rear end portion 25b of the recess 25 is an intake port. With such a structure, the air inlet garnish 24 can adjust the flow of air and introduce air more efficiently into the engine room 10.

  The hood panel outer 11 and the air inlet garnish 24 are in contact with the outer peripheral portion of the upper surface of the flange 26 provided on the hood panel outer 11 and the bottom surface of the air inlet garnish 24. The lower surface of the flange 26 of the hood panel outer 11 is joined to the peripheral edge of the opening 22 of the hood panel inner 12. The air inlet garnish 24 is provided with an air inlet lean reinforcement 27 (see FIG. 4) in order to improve the impact reduction effect when colliding with a pedestrian.

  As shown in FIG. 4, the air inlet lean reinforcement 27 has a shape that fits with the back surface of the air inlet garnish 24, and is manufactured by pressing a steel plate or the like. In addition, the air inlet lean reinforcement 27 is provided with a plurality of recesses 28 to increase the rigidity against the force acting from above. The rigidity of the opening 23 of the hood panel outer 11 can also be increased.

  As shown in FIG. 1, the food panel inner 12 is provided with two openings 30 symmetrically. The opening 30 has a substantially parallelogram shape, a side extending in the vehicle width direction is a long side, and a side extending from the front to the rear is a short side. The short side is substantially parallel to the corrugated bead 18.

  A bead 31 is provided in the vicinity of the vehicle width direction of the opening 30, that is, on the side of the so-called opening 30 in parallel with the short side. The bead 31 forms a convex portion parallel to the corrugated bead 18, and the opening 30 side end portion of the corrugated bead 18 in which both front and rear ends of the bead 31 are divided by the opening 30 when viewed from the vehicle width direction. Provide to overlap. When the cross section of the bead 31 is seen in the AA cross section of FIG. 1, it has a shape as shown in FIG.

  As shown in FIG. 2, the hood panel outer 11 coupled to and integrated with the hood panel inner 12 is similarly provided with an opening 32, and a flange 35 is provided on each side inside the opening 32. An air outlet frame outer 33 (see FIG. 5) having an outer shape that fits the opening 32 is provided in the opening 32 of the hood panel outer 11.

  The shape of the air outlet frame outer 33 is annular, and an air outlet frame inner 34 (see FIG. 6) is provided on the lower surface of the air outlet frame outer 33 for reinforcement. The air outlet frame inner 34 is produced by pressing a steel plate. The lower part of the air outlet frame outer 33 and the upper part of the air outlet frame inner 34 are fitted and coupled.

  The air outlet frame outer 33 and the air outlet frame inner 34 are integrated, and these are in contact with the flange 35 of the hood panel outer 11 on the lower surface of the air outlet frame inner 34. In this embodiment, the air outlet frame inner 34 is a frame. The air outlet frame inner 34 and the flange 35 are joined together by welding or the like.

  With the hood panel according to the present embodiment, the opening can be disposed without reducing the strength and rigidity even when the plate thickness of the hood panel inner 12 is made thinner than the conventional one. A cooling function can also be secured. Thereby, since the usage-amount of the aluminum material used for the food panel inner 12 can be reduced, cost can be reduced.

  Further, at the time of a collision with a pedestrian, the impact force can be quickly transmitted to the rear end portion of the hood including the hinge 13 having high rigidity of the hood panel inner 12 and the front end portion of the hood including the striker 15. Thereby, the head impact reduction effect at the time of colliding with a pedestrian can be improved. Furthermore, the impact reduction effect at the time of colliding with a pedestrian can be improved because the plate | board thickness of the outer edge part of the food panel inner 12 fell.

  Further, the strength and rigidity of the hood panel can be ensured by the corrugated bead 18 and the transit bead 31, and in addition to the reduction of the plate thickness of the hood panel inner 12, the impact mitigation effect is improved by the corrugated bead. By doing so, since the space | interval with components, such as the engine 29 in the engine room 10, may be small, the freedom degree of design of the hood panel inner 12 and the hood panel outer 11 can be increased.

  In addition, an opening is provided in the hood panel inner 12 and the hood panel outer 11 at a position where the corrugated bead 18 is divided in order to discharge air introduced from the vicinity of the radiator at the front of the vehicle body. By providing the bead 31 so as to overlap with the corrugated bead 18 divided on one side or both the right and left sides, even when the corrugated bead 18 is divided, the reduction in strength and rigidity is suppressed, and Efficient exhaust can be performed.

  Further, by providing the air outlet frame outer 33 and the air outlet frame inner 34 at the opening of the hood panel outer 11, the rigidity of the opening of the hood panel outer 11 and the opening of the hood panel inner 12 can be increased. Thereby, even when the corrugated bead 18 is divided, at the time of a collision with a pedestrian, the rear end portion of the hood provided with the rigid hinge 13 of the hood panel inner 12 and the front end portion of the hood provided with the striker 15 are provided. The impact force can be transmitted quickly.

  The present invention is effective in securing the strength and rigidity of the hood panel inner and considering pedestrian protection.

It is a perspective view of a food panel inner. It is a perspective view of a food panel outer. It is a perspective view of an air inlet garnish. It is a perspective view of an air inlet lean reinforcement. It is a perspective view of an air outlet outer. It is a perspective view of an air outlet inner. It is sectional drawing of the hood panel inner shown by AA of FIG. 1, and a hood panel outer. It is a perspective view of a vehicle body front part.

Explanation of symbols

10 Engine Room 11 Hood Panel Outer 12 Hood Panel Inner 13 Hinge 14 Front Upper Frame Inner 15 Striker 16 Front End Upper Bar 17 Hook 18 Corrugated Beads 22, 30 Hood Panel Inner Opening 24 Air Inlet Garnish 26, 32 Hood Panel Outer Opening Part 27 Air inlet lean reinforcement 31 Bead 33 Air outlet frame outer 34 Air outlet frame inner

Claims (4)

A hood panel comprising a hood panel outer and a hood panel inner disposed on the back surface thereof,
The hood panel outer and the hood panel inner are provided with openings serving as air passages,
The hood panel inner is provided with a wave-shaped bead extending from the front to the rear,
The opening in the food panel inner is disposed so as to divide the corrugated bead,
A hood panel, wherein a bead that overlaps the opening side end of the corrugated bead in the width direction of the hood panel inner is provided on at least one side of the opening of the hood panel inner. In the food panel according to claim 1,
The hood panel characterized in that the number of the corrugated beads that the opening part divides is within two. In the food panel according to claim 1 or 2,
A hood panel characterized in that a frame is provided at the periphery of the opening of the hood panel outer. In the food panel according to any one of claims 1 to 2,
The hood panel outer and the hood panel inner opening portions are substantially parallelograms.

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