CN113490623B - Engine hood for vehicle - Google Patents
Engine hood for vehicle Download PDFInfo
- Publication number
- CN113490623B CN113490623B CN202080017992.2A CN202080017992A CN113490623B CN 113490623 B CN113490623 B CN 113490623B CN 202080017992 A CN202080017992 A CN 202080017992A CN 113490623 B CN113490623 B CN 113490623B
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- Prior art keywords
- vehicle
- face
- boundary
- end edge
- inner panel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
Abstract
Disclosed is a vehicle hood (10) in which a reinforcement member (3) is deployed between an outer panel (1) and an inner panel (2), said vehicle hood (10) comprising: a front face part (4), a rear face part (5) and a rear foot part (7). The front face portion (4) is a planar portion that serves as the front portion of the reinforcement member (3) and reinforces the front end portion of the vehicle. The rear portion (5) is a planar portion extending from both the left and right ends of the front portion (4) toward the rear of the vehicle and outward in the vehicle width direction. The rear leg portion (7) extends from the vehicle-outside end edge of the rear portion (5) toward the vehicle front and is fixed to the inner panel (2).
Description
Technical Field
The present invention relates to a vehicle hood in which a reinforcement member is deployed between an outer panel and an inner panel.
Background
Conventionally, there is known a structure in which a reinforcement member is interposed between an outer panel and an inner panel in a vehicle hood that covers an upper surface of a compartment (an engine room, a motor room, or the like) of a vehicle. For example, it is proposed that: an arch-shaped bracket is fixed to an inner panel, and a plate surface of the bracket is spread along a rear surface of an outer panel (see patent document 1). In addition, it is also proposed that: a structure in which a plate-like reinforcing member is attached to the back surface of an outer panel to improve rigidity (see patent document 2).
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open No. 2006-306237
Patent document 2: japanese patent laid-open publication 2016-010995
Disclosure of Invention
Technical problem to be solved by the invention
The energy generated when the external force acts on the vehicle hood is absorbed by the deformation of the outer panel and the reinforcement member. Therefore, if the deformation shape can be controlled, the cushioning performance can be improved. On the other hand, the conventional vehicle hood does not sufficiently take this into consideration, and there is still room for improvement. For example, further improvement in cushioning performance is expected by exploring a structure for fixing the reinforcement member to the inner panel.
In view of the above problems, an object of the present invention is to control a deformed shape of a reinforcement member of a vehicle hood to improve cushioning performance. Further, not only this object, but also an operational effect derived from each configuration shown in the "specific embodiment" described later, which is not obtained in the prior art, can be achieved as another object of the present invention.
Technical scheme for solving technical problems
The disclosed vehicle hood is a vehicle hood in which a reinforcement member is deployed between an outer panel and an inner panel. The vehicle hood includes a planar front surface portion that serves as a front portion of the reinforcement member and reinforces a front end portion of the vehicle. Further, a planar rear face portion is provided, and the planar rear face portion extends rearward of the vehicle and outward in the vehicle width direction from both left and right end portions of the front face portion. And a rear leg portion extending from a vehicle-outer side end edge of the rear face portion toward a vehicle front side and fixed to the inner panel.
ADVANTAGEOUS EFFECTS OF INVENTION
By extending the rear leg portion from the vehicle-outer side edge of the rear portion toward the vehicle front, the length from the base end portion to the front end portion can be easily ensured without increasing the vehicle width direction dimension. This can increase the stroke of deformation of the reinforcement member, and can improve the cushioning performance of the vehicle hood.
Drawings
Fig. 1 is an exploded perspective view of a vehicle hood as an embodiment.
Fig. 2 is a top view of the reinforcement member.
Fig. 3 is a perspective view showing the reinforcement member for the forefoot and the hindfoot.
Fig. 4 is a perspective view of the hindfoot portion.
Fig. 5 is a top view of the hindfoot portion.
Fig. 6 (a) to (C) are cross-sectional views of the rear leg portion.
Fig. 7 is a perspective view for explaining deformation of the rear foot portion based on an external force.
Detailed Description
[1. Structure of hood for vehicle ]
Referring to fig. 1 to 7, a vehicle hood 10 as an embodiment will be described. The vehicle hood 10 is a member that covers an upper surface of a compartment (a vehicle-mounted product housing chamber such as an engine room and a motor room) provided in a front portion of a vehicle. A hinge for pivotally supporting the vehicle hood 10 to be openable and closable with respect to the vehicle body and a spring for biasing the vehicle hood 10 in the opening direction are provided near the rear end portion of the compartment. Further, a hood lock device for maintaining a closed state of the vehicle hood 10, a support rod for maintaining an open state, and the like are provided near the front end portion of the compartment.
As shown in fig. 1, the vehicle hood 10 has a structure in which a reinforcement member 3 (hood lock reinforcement upper portion) is unfolded between an outer panel 1 (hood outer panel) and an inner panel 2 (hood inner panel). The outer panel 1 is a member that serves as an outer surface of the vehicle hood 10, and is coated with an exterior design and is roughened on a front panel surface. A grill reinforcement 11 is provided at the front portion of the outer panel 1, and the grill reinforcement 11 has an opening through which cooling air introduced into the compartment passes. A grille 12 of the vehicle is attached to the grille reinforcement portion 11. The headlight 13 of the vehicle is attached to the vehicle body in front of the compartment. The position of the headlight 13 is set to be a position on the left and right sides of the grille 12 in the closed state of the vehicle hood 10.
The inner panel 2 is disposed below the outer panel 1 with a predetermined interval therebetween, and is joined to the outer edge portion of the outer panel 1. The plate surface of the inner plate 2 is provided with irregularities for improving strength and rigidity. The inner panel 2 of the present embodiment is provided with an edge portion 14 and a beam portion 15. The edge portion 14 is a substantially horizontal portion formed along the edges of the left and right ends of the inner panel 2, and functions as a reinforcing flange. The beam portion 15 is a portion in which the plate surface is recessed downward and the recesses are aligned in the vehicle longitudinal direction along the inner side of the edge portion 14, and functions as a structural cross section that improves the flexural rigidity of the inner panel 2.
The reinforcement member 3 is disposed in a planar shape along the plate surface of the outer plate 1 in the space enclosed by the outer plate 1 and the inner plate 2. The reinforcing member 3 is made of an aluminum alloy (for example, an al—mg alloy, an al—mg—si alloy, or the like), and is formed by processing a rolled plate. The reinforcement member 3 is fixed to the outer panel 1 and the inner panel 2. For example, the reinforcement member 3 of the present embodiment is fixed to the outer panel 1 by an adhesive, and is welded to the inner panel 2.
The reinforcement member 3 is arranged in such a manner that its overall shape in a plan view of the vehicle conforms to a dart shape curved in an arcuate shape and flies out toward the front of the vehicle in the vicinity of the center in the vehicle width direction. In addition, the shape of the reinforcing member 3 is bilaterally symmetrical (mirror-symmetrical) in a plan view of the vehicle. As shown in fig. 2, the reinforcement member 3 of the present embodiment has a rear face portion 5 that is paired with the front face portion 4. The front portion 4 is a half-moon-shaped portion of the reinforcement member 3 located at the front of the vehicle. The rear portion 5 is a portion extending outward in the vehicle width direction from each of the left and right end portions thereof toward the rear of the vehicle. The boundary line between the front portion 4 and the rear portion 5 is indicated by a one-dot chain line in fig. 2. The front portion 4 and the rear portion 5 are integrally formed, and the boundaries thereof are merely defined for convenience.
The reinforcement member 3 is provided with three pairs of legs 6, 7, 8 fixed to the inner panel 2. These legs 6, 7, 8 extend obliquely from the reinforcement member 3 toward the outside thereof and below. Hereinafter, the leg portion provided in the front portion 4 will be referred to as a forefoot portion 6. Among the legs provided in the rear portion 5, a portion located outside the vehicle is referred to as a rear leg 7, and a portion located inside the vehicle is referred to as a second rear leg 8.
The front leg portion 6 is a front end portion of the front face portion 4, and is disposed on both left and right sides of the grill reinforcement portion 11 (at a position avoiding the grill 12). As shown in fig. 2, the position of the front foot 6 in a plan view of the vehicle corresponds to the position of the rear side of the headlight 13. The front end of the front foot portion 6 is fixed in surface contact with the edge portion 14 of the inner panel 2, for example, by spot welding. In a plan view of the vehicle, the direction in which the front leg portion 6 extends from the front face portion 4 is obliquely forward (a direction toward the vehicle outside and forward).
A flange 16 bent downward is formed at a portion sandwiched between the left and right front leg portions 6 at the front end edge of the front face portion 4. Wherein the left and right ends of the flange 16 are interrupted before reaching the forefoot portion 6. The flange 16 is not formed at a portion of the front end edge of the front face portion 4 on the vehicle center side adjacent to the front foot portion 6. On the other hand, a second flange 17 is formed at a portion on the vehicle outside adjacent to the front foot portion 6. The second flange 17 is a portion formed by bending the left and right side edges of the front portion 4 downward, and is provided to be connected to the plate surface of the front leg portion 6. The rear end of the second flange 17 is interrupted before reaching the rear face 5.
A rear foot 7 and a second rear foot 8 extend from the rear face 5. The rear leg portion 7 is disposed at a position near the vehicle rear (near the end portion) of the vehicle-outside end edge of the rear portion 5. In contrast, the second rear leg portion 8 is disposed at a position near the vehicle rear (near the end) of the vehicle inner side end edge of the rear portion 5. In general, the positions of the rear leg portion 7 and the second rear leg portion 8 are set to positions corresponding to left and right ends (both front ends) of the boomerang shape. Further, disposed on the outer side of the dart shape is a rear foot portion 7, and disposed on the inner side of the dart shape is a second rear foot portion 8.
In a plan view of the vehicle, the direction in which the second rear leg portion 8 extends from the rear portion 5 is a direction directly opposite to the front leg portion 6, and is considered to be obliquely rearward (a direction toward the vehicle inside and rearward). The direction in which the rear leg portion 7 extends from the rear portion 5 is the vehicle front. This increases the distance from the base end to the tip end of the rear leg portion 7, and increases the stroke of deformation when an external force acts. In addition, the protrusion of the rear leg portion 7 in the vehicle width direction is suppressed as compared with the case where the rear leg portion 7 is extended outward in the vehicle width direction.
The front end of the rear foot portion 7 is fixed (e.g., spot-welded) in a surface-contact state with respect to the edge portion 14 of the inner panel 2. On the other hand, the distal end of the second rear leg portion 8 is fixed in surface contact with the plate surface of the inner plate 2, for example, by spot welding. As shown in fig. 2, the second flange 17 is not formed on the vehicle-outer side end edge of the rear portion 5. In other words, by intentionally not applying a reinforcing structure for increasing the moment of inertia of the cross section in the vicinity of the boundary of the rear face portion 5 and the rear foot portion 7, bending deformation is allowed.
A stepped flange 18 formed in a stepped shape is provided on the rear end side of the front face portion 4 and the vehicle inner side end side of the rear face portion 5. The stepped flange 18 is a portion bent in a crank shape with the plate surfaces of the front and rear portions 4, 5 facing downward and rearward in the vehicle, and is formed to be connected to the plate surface of the second rear leg portion 8. This makes it possible to prevent the entire region of the end edge of the reinforcing member 3 corresponding to the inner side of the dart shape from being deformed by bending.
[2. Structure of hindfoot portion ]
The rear leg portion 7 extends in a planar shape from the edge end of the rear face portion 5 of the reinforcement member 3, and is fixed to the edge portion 14 of the inner panel 2. As described above, the rear leg portion 7 is disposed at a position near the vehicle rear (near the end) of the vehicle outer side end edge of the rear portion 5, and extends toward the vehicle front. The rear leg portion 7 can be formed by press working the end portion of the plate surface of the reinforcing member 3, similarly to the front leg portion 6. As shown in fig. 3 to 6, a rear first face 40, a rear second face 41, and a rear third face 42 are provided in this order from above on the rear leg 7.
The rear foot first surface portion 40 (first surface portion) is a planar portion provided at the uppermost portion of the rear foot portion 7. The rear foot first surface 40 extends from the edge of the rear surface 5 so as to be flush with the rear surface 5. The boundary 50 between the rear portion 5 and the rear first face 40 is linear, and is indicated by a broken line in fig. 4 and 5. The boundary between the rear foot first surface portion 40 and the rear foot second surface portion 41 is arranged parallel to the boundary 50 (the vehicle-outer side end edge of the rear portion 5). In other words, the rear foot first surface portion 40 has a rectangular planar shape, and is formed such that the side that meets the boundary 50 is longer than the side that adjoins the boundary.
The rear foot second surface 41 (second surface) is a planar portion adjacent to and disposed below the rear foot first surface 40. The rear foot second surface 41 is connected obliquely in an oblique direction with respect to the rear foot first surface 40. The general shape of the rear foot second face 41 can conform to a parallelogram shape extending toward the front of the vehicle. At least, the boundary between the rear foot second face 41 and the rear foot third face 42 is arranged parallel to the boundary between the rear foot first face 40 and the rear foot second face 41. Further, the base end side (the rear foot first face portion 40 side) may be formed to be narrower than the front end side (the rear foot third face portion 42 side), so that the ease of deformation of the rear foot second face portion 41 may be improved.
As shown in fig. 4, the third buckling portion 43, which is a boundary between the rear foot first surface portion 40 and the rear foot second surface portion 41, is a ridge line (a crease that is convex upward). As shown in fig. 6 (B), the rear foot second face 41 is bent at an angle θ with respect to the rear foot first face 40 4 Is set to an angle at least smaller than a right angle (for example, 10 to 80 degrees). Since the third buckling portion 43 is deviated to a position (vehicle outside) away from the boundary 50, buckling deformation of the boundary 50 is relatively easily caused when an external force acts.
The rear third surface 42 (third surface) is a surface-shaped portion provided below the rear second surface 41 in abutment therewith. The rear third face portion 42 is connected to the rear first face portion 40 in an inclined manner, but the direction of the bending of the rear third face portion 42 with respect to the rear second face portion 41 is set to be opposite to the direction of the bending of the rear second face portion 41 with respect to the rear first face portion 40. Thus, the fourth buckling portion 44, which is a boundary between the rear foot second face portion 41 and the rear foot third face portion 42, is a valley-shaped groove (a fold that is convex downward).
In the present embodiment, the flexion angle θ of the rear third face 42 with respect to the rear second face 41 5 Is smaller than a right angle and is set to a buckling angle theta with the rear foot second face 41 4 The same angle. Namely θ 4 ＝θ 5 . The bending of the rear foot second surface 41 is restored by the bending of the rear foot third surface 42. This makes the posture of the rear third surface portion 42 substantially horizontal in the same manner as the rear first surface portion 40, and the rear third surface portion is easily brought into surface contact with the edge portion 14 of the inner panel 2. In addition, the fixing state of the reinforcement member 3 is stabilized by making the rear foot third surface portion 42 parallel to the rear surface portion 5.
As shown in fig. 3 to 5, a notch 45 is provided between the rear leg portion 7 and the rear face portion 5. The notch 45 is a portion formed in a shape that opens a notch from a fixed position of the rear leg portion 7 and the inner panel 2 toward the vehicle rear, and has a shape that is a bay that is recessed toward the vehicle rear in plan view. In addition, no reinforcing structure such as a flange or a cavity is applied to the portion of the edge of the rear portion 5 and the rear leg portion 7 that is in contact with the notch portion 45. For example, the second flange 17 is disposed only in front of the cutout 45 in plan view without entering the vehicle rear region of the third surface 42.
As shown in fig. 6 (a), a third concave cavity 46 and a fourth concave cavity 47 are provided in the third bending portion 43. These concave cavities 46, 47 are formed in a shape that bulges downward toward the inner panel 2 at the boundary between the rear first surface 40 and the rear second surface 41. The concave cavities 46, 47 are set to have an oval shape, a circular shape, an egg shape, or the like elongated in the lateral direction. By providing such concave cavities 46, 47, the deformation of the third buckling portion 43 due to the external force is reduced, and the buckling angle θ of the hindfoot first face portion 40 and the hindfoot second face portion 41 is easily maintained 4 。
In the present embodiment, the plurality of concave cavities 46, 47 are provided at the boundary between the rear foot first face portion 40 and the rear foot second face portion 41. These concave cavities 46, 47 are each disposed in the third buckling portion 43. Therefore, the line connecting the two concave cavities 46 and 47 is parallel to the boundary 50 and the extending direction of the fourth buckling portion 44. By providing the plurality of concave cavities 46, 47, deformation of the third buckling portion 43 at the time of external force application can be further suppressed.
The rear foot second surface portion 41 and the rear foot third surface portion 42 are provided with fourth reinforcement portions 48 and fifth reinforcement portions 49 for reinforcing the end edges of the rear foot portion 7 (the end edges connecting the reinforcement member 3 and the inner panel 2). These reinforcing portions 48, 49 are portions formed by bending the plate surface, and are formed along the end edges of the rear leg portion 7. The reinforcing portions 48 and 49 of the present embodiment have a shape that bulges the plate surfaces of the rear foot second surface portion 41 and the rear foot third surface portion 42. That is, the plate surface is bent twice to thereby form a crank-like cross-sectional shape. As shown in fig. 6C, the cross-sectional shape of the rear third face portion 42 is formed in a shape in which both the left and right end portions are raised from the central portion (a cap shape in the upside-down direction).
The fourth reinforcement portion 48 is provided at the first end edge 51 on the vehicle width direction outer side of the end edges of the rear foot second face portion 41. In addition, a fourth reinforcing portion 48 extends from the end edge of the rear third face portion 42 adjacent to the first end edge 51 of the rear second face portion 41. The fourth reinforcement portion 48 reinforces the outer end edges of the rear foot second surface portion 41 and the rear foot third surface portion 42, and functions to suppress bending deformation in the vicinity of the outer end edges.
The fifth reinforcement portion 49 is provided on the end edges of the rear foot second face portion 41 and the rear foot third face portion 42. However, the range of the fifth reinforcement portion 49 is set so that the fifth reinforcement portion 49 is hardly included in the second end edge 52 of the rear foot second face portion 41, which is opposed to the first end edge 51. For example, as shown in fig. 5, the fifth reinforcement portion 49 is provided only in a portion extending in a straight line from the rear third face portion 42 in the second end edge 52 of the rear second face portion 41. The second end edge 52 is provided with no fifth reinforcing portion 49 in a majority, that is, a planar non-reinforcing portion that does not bend the plate surface.
[3. Action, effect ]
Fig. 7 is a diagram illustrating a deformed state of the rear leg portion 7 when an external force is applied to the outer panel 1 from above the vehicle hood 10. The first end edge 51 of the rear foot second surface 41 is reinforced by the fourth reinforcement portion 48 so as not to be deformed easily and to be maintained in a posture easily. On the other hand, a notch 45 is provided between the rear leg portion 7 and the rear face portion 5, and the fifth reinforcement portion 49 is hardly included in the second end edge 52 of the rear leg second surface portion 41. Thereby, buckling deformation of the second end edge 52 side is easily allowed.
In addition, a third buckling portion 43 is providedThe third concave cavity 46 and the fourth concave cavity 47 facilitate maintenance of the bending angle θ of the rear first surface portion 40 and the rear second surface portion 41 4 . As a result, as shown in fig. 7, the vicinity of the boundary 50 is more likely to flex than the third buckling portion 43, and the vicinity of the boundary 50 becomes a valley-shaped groove (a fold that is convex downward). Thereby, the third buckling portion 43 moves upward than the rear portion 5, and the deformed stroke increases. In addition, no reinforcing structure such as a flange or a cavity is applied to the portion of the edge of the rear portion 5 and the rear leg portion 7 that is in contact with the notch portion 45. Therefore, the rear leg portion 7 can be prevented from undesirably interfering with and contacting the inner panel 2 when the rear leg portion 7 is deformed, and the cushioning performance of the rear leg portion 7 can be improved.
(1) The reinforcement member 3 of the vehicle hood 10 is provided with a front portion 4 and a rear portion 5. The rear portion 5 is a planar portion extending outward in the vehicle width direction from both the left and right end portions of the front portion 4 toward the vehicle rear. The rear leg portion 7 extends from the vehicle-outer side end edge of the rear portion 5 toward the vehicle front, and is fixed to the inner panel 2. With this configuration, the distance from the base end to the front end of the rear leg portion 7 can be increased while suppressing the protrusion of the rear leg portion 7 in the vehicle width direction. Therefore, the stroke of deformation of the rear leg portion 7 and the reinforcement member 3 when an external force acts can be increased, and the cushioning performance of the vehicle hood 10 can be improved.
(2) As shown in fig. 3 to 5, a notch 45 is provided between the rear leg portion 7 and the rear face portion 5. This makes it possible to form the rear leg portion 7 in a plan view into a shape elongated in the vehicle front-rear direction, and to form a long leg having a small size in the vehicle width direction. Further, by providing the notch 45, the stress transmission direction of the rear leg portion 7 can be restricted to the vehicle front-rear direction. This can increase the stroke of deformation of the rear leg portion 7 and the reinforcement member 3 when an external force acts, and can improve the cushioning performance of the vehicle hood 10.
(3) As shown in fig. 6 (B), the rear foot portion 7 is arranged in a posture inclined downward toward the vehicle outside. This makes it easier for the plate surface of the rear leg portion 7 to be deformed so as to fall downward, and improves the controllability of the deformed shape of the reinforcing member 3. In addition, the external force input to the reinforcement member 3 can be easily dispersed to the vehicle outside, and the cushioning performance of the vehicle hood 10 can be improved.
(4) As shown in fig. 6 (B), the rear leg portion 7 is provided with a rear leg first face portion 40, a rear leg second face portion 41, and a rear leg third face portion 42. Of these faces 40 to 42, the portion fixed to the inner panel 2 is only the rear foot third face 42. In addition, the rear foot first face portion 40 is provided to be the same plane as the rear face portion 5. With this structure, the vicinity of the boundary 50 can be easily flexed by an external force, and the rear leg portion 7 can be deformed as desired. Therefore, the cushioning performance of the vehicle hood 10 can be improved.
(5) A fourth reinforcing portion 48 formed by bending the plate surface is provided at the first end edge 51 of the rear foot second surface portion 41. On the other hand, a second end edge 52 facing the first end edge 51 is provided with a non-reinforcing portion that does not bend the plate surface. According to this structure, the buckling deformation at the first end edge 51 can be suppressed, and the buckling deformation only at the second end edge 52 side can be promoted, so that the rear foot portion 7 can be deformed as desired. For example, the rear leg portion 7 can be deformed by buckling so that the third buckling portion 43 moves upward than the rear face portion 5. Therefore, the stroke of deformation of the rear foot portion 7 when an external force acts can be increased, and the cushioning performance of the vehicle hood 10 can be improved.
(6) As shown in fig. 5, a boundary portion (third buckling portion 43) that is a boundary between the rear foot first face portion 40 and the rear foot second face portion 41 is arranged parallel to the boundary 50 (vehicle outside end edge of the rear portion 5). This makes it possible to easily bend the entire vicinity of the boundary 50 when an external force acts. In other words, the stroke of the deformation of the rear foot portion 7 when an external force acts can be increased, and the cushioning performance of the vehicle hood 10 can be improved.
(7) Similarly, the boundary between the rear foot second face 41 and the rear foot third face 42 is arranged parallel to the boundary between the rear foot first face 40 and the rear foot second face 41. With this structure, the rear foot second surface portion 41 can be easily deformed in the direction perpendicular to the plate surface (buckling direction). Therefore, the stroke of deformation of the rear foot portion 7 when an external force acts can be increased, and the cushioning performance of the vehicle hood 10 can be improved.
(8) By providing the third concave cavity 46 and the fourth concave cavity 47 in the third buckling portion 43, deformation of the lower end of the rear first face portion 40 (the upper end of the rear second face portion 41) can be suppressed, and the buckling angle θ can be easily maintained 4 . This can promote buckling deformation in the vicinity of the boundary 50, and can increase the stroke of deformation of the rear foot 7. In addition, the buckling angle θ of the third buckling portion 43 is easily maintained 4 Therefore, the deformation of the third buckling portion 43, which falls downward from the rear portion 5, can be suppressed, and the rear foot portion 7 can be deformed as desired. Therefore, the cushioning performance of the vehicle hood 10 can be improved.
(9) Further, by providing the plurality of concave cavities 46, 47, the deformation of the third buckling portion 43 at the time of the external force application can be strongly suppressed, and the rear leg portion 7 can be deformed as desired more reliably. Therefore, the cushioning performance of the vehicle hood 10 can be improved. In particular, the third buckling portion 43 buckles and falls downward, so that the stroke of deformation of the rear leg portion 7 can be prevented from becoming smaller.
[4. Modification ]
The above-described embodiments are merely examples, and are not intended to exclude various modifications and applications of techniques not explicitly shown in the present embodiments. Each structure of the present embodiment can be implemented by various modifications within a range not departing from the gist described above. In addition, the selection and the appropriate combination can be made as needed.
In the above-described embodiment, the fourth reinforcement portion 48 is formed by bending and bulging the plate surface of the rear foot second face portion 41 twice. On the other hand, a portion formed by once bending the plate surface of the rear foot second face portion 41 may be used as the fourth reinforcement portion 48. The fifth reinforcement portion 49 may be of a structure that is bent to reinforce the end edge of the leg portion.
Description of the reference numerals
1. Outer plate
2. Inner plate
3. Reinforcing member
4. Front part of the face
5. Rear part of the face
6. Forefoot portion
7. Rear foot
8. Second hindfoot portion
10. Engine hood for vehicle
40. Rear foot first face (first face)
41. Rear foot second face (second face)
42. Rear foot third face (third face)
43. Third buckling part
44. Fourth buckling part
45. Cut-out part
46. Third concave cavity
47. Fourth concave die cavity
48. Fourth reinforcing part
49. Fifth reinforcement part
50. Boundary of
51. First end edge
52. A second end edge.
Claims (7)
1. A vehicle hood, wherein a reinforcement member is deployed between an outer panel and an inner panel, the vehicle hood comprising:
a planar front surface portion that serves as a front portion of the reinforcement member and reinforces a front end portion of the vehicle;
a planar rear portion extending rearward along a side edge of the outer panel from both left and right end portions of the front portion toward a vehicle rear and outward in a vehicle width direction; and
a rear leg portion extending from a vehicle-outer side end edge of the rear face portion toward a vehicle front and fixed to the inner panel,
the rear foot section has:
a first face portion which is flush with the rear face portion;
a second face portion connected in an inclined orientation with respect to the first face portion; and
a third face portion connected in an inclined orientation with respect to the second face portion and fixed to the inner panel,
the second surface portion includes: a first end edge on the outer side in the vehicle width direction and a second end edge on the inner side in the vehicle width direction opposite to the first end edge,
the first end edge has a reinforcing part for bending the plate surface, and
the second end edge has a planar non-reinforcing portion that does not bend the panel.
2. The vehicle hood according to claim 1, wherein,
the boundary portion is disposed parallel to a vehicle-outer side edge of the rear face portion, and the boundary portion is a boundary between the first face portion and the second face portion.
3. The vehicle hood according to claim 1, wherein,
the boundary between the second face and the third face is arranged parallel to the boundary between the first face and the second face.
4. The vehicle hood according to claim 1, wherein,
the vehicle hood includes a concave cavity formed in a shape bulging toward the inner panel side at a boundary between the first surface portion and the second surface portion.
5. The vehicle hood according to any one of claims 1 to 4, characterized in that,
the rear leg portion and the reinforcement member are provided with a cutout portion therebetween, and the cutout portion is formed in a shape that opens a cutout from a fixed position of the rear leg portion and the inner panel toward the vehicle rear.
6. The vehicle hood according to any one of claims 1 to 4, characterized in that,
the rear foot portion is disposed in a posture inclined downward toward the front of the vehicle.
7. The vehicle hood according to claim 4, wherein,
a plurality of concave cavities are arranged at the boundary of the first face part and the second face part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-037324 | 2019-03-01 | ||
| JP2019037324 | 2019-03-01 | ||
| PCT/JP2020/002261 WO2020179269A1 (en) | 2019-03-01 | 2020-01-23 | Vehicle hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113490623A CN113490623A (en) | 2021-10-08 |
| CN113490623B true CN113490623B (en) | 2023-06-16 |
Family
ID=72337514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080017992.2A Active CN113490623B (en) | 2019-03-01 | 2020-01-23 | Engine hood for vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7173279B2 (en) |
| CN (1) | CN113490623B (en) |
| WO (1) | WO2020179269A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JP2015089788A (en) * | 2013-11-07 | 2015-05-11 | 本田技研工業株式会社 | Front vehicle body structure |
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| WO2020179269A1 (en) | 2020-09-10 |
| CN113490623A (en) | 2021-10-08 |
| JPWO2020179269A1 (en) | 2021-12-02 |
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