JP2004203158A - Front part structure of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a front part structure of an automobile capable of supporting a reinforcing member on a vehicle structural body in the rear with high strength while restraining weight increase and certainly preventing dragging of a pedestrian, etc. into the lower side of a vehicle at the time when the vehicle collides against the pedestrian, etc. <P>SOLUTION: A bumper face 2 has an opening part 4, and the reinforcing member 20 extends in the car width direction and arranged in the rear inward of a bumper lower face 2b extending downward from this opening part 4. The reinforcing member 20 is formed of a side face part 22, an upper face part 24, a front face part 26 and a lower face part 28, a lateral rib 30 is provided along the side face part 22 and the front face part 26, and a vertical rib 32 is provided along the upper face part 24, the front face part 26 and the lower face part 28. Additionally, an extended part 29 is integrally provided toward the rear from the lower face part 28, and the extended part 29 is also connected to an under cover 50 connected to a cross-member 52 arranged backward from the bumper structural body 1, extended forward and having reinforcing structural bodies 55, 56. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a front structure of an automobile.
[0002]
[Prior art]
With respect to the bumper structure of an automobile, the following Patent Document 1 having the structure shown in FIG. 11 is known. In the bumper structure disclosed in Patent Document 1, the lower portion (bumper face under 126) of the bumper facer 102 in the front bumper 101 extends to and is connected to the vehicle frame 106, and is fastened to the frame 106 to extend forward. An absorber 110 is provided inside the rear of the bumper facer 102. The shock absorber 110 has ribs 113 extending in the vehicle width direction and a plurality of longitudinal ribs 112 extending in the longitudinal direction. I have.
[0003]
According to this structure, at the time of collision with a pedestrian or the like, the pedestrian or the like can be prevented from being caught in the lower side of the vehicle body. However, since the shock absorber 110, which is a reinforcing member for preventing a pedestrian or the like from getting caught in the lower side of the vehicle body, is a resin molded body and is cantilevered by the frame 106, its support rigidity is weak, and When the vehicle collides with a pedestrian or the like, the vehicle is bent upward from the vicinity of the fastening portion, and there is a possibility that the pedestrian or the like may be caught in the lower part of the vehicle.
[0004]
The shock absorber 110 extends forward from the frame 106 and has a plurality of ribs on its upper inner surface. However, in order to increase rigidity, the number of ribs may be increased or the thickness may be increased. Then, there is a problem that the weight increase becomes large.
[0005]
[Patent Document 1]
JP 2002-274298 A
[Problems to be solved by the invention]
As described above, the present invention enables the reinforcing member to be supported by the rear vehicle structure with high strength while suppressing weight increase, and when the vehicle collides with a pedestrian or the like, the pedestrian or the like is placed under the vehicle. An object of the present invention is to provide a vehicle front structure that can reliably prevent the vehicle from being caught on the side.
[0007]
[Means for Solving the Problems]
The first configuration of the front structure of the automobile according to the present invention has an opening for introducing outside air in the bumper face, and is located inside the rear of the bumper lower face below the opening and constituting a part of the bumper face. A vehicle structure having a reinforcing member attached to a lower end of the lower bumper face, and a vehicle structure disposed rearward of the bumper face in the vicinity of the mounting portion in the vehicle width direction. Are connected, and a reinforcing structure is provided between both connecting portions of the connecting plate.
[0008]
According to the first configuration, first, the reinforcing member is attached to the lower end of the bumper lower face, and a connecting plate that connects the vehicle structure disposed behind the bumper face near the mounting portion in the vehicle width direction. Is connected, the supporting strength of the reinforcing member in the rear of the bumper lower face with respect to the vehicle structure increases, and when the front portion of the vehicle collides with a pedestrian or the like, the entire reinforcing member moves rearward together with the bumper face. There is no. Furthermore, since the connecting plate is provided with the reinforcing structure, the supporting rigidity of the reinforcing member with respect to the rear vehicle structure can be further increased, and the pedestrians and the like can be effectively involved in the lower side of the vehicle. Can be avoided.
[0009]
Further, according to the first configuration, the structure is such that the bumper face and the connecting plate are connected near the mounting portion of the lower end of the bumper lower face in the vehicle width direction. As a result, the reinforcing member and the connecting plate are integrated within a narrow range via the bumper lower face, so that the mounting portion between the reinforcing member and the bumper lower face and the mounting portion between the bumper lower face and the connecting plate are formed. The strength near the connecting part can be improved by a synergistic effect of the connecting strength of these connecting parts, as compared with connecting at a long interval. Alternatively, the strength and rigidity of the front structure of the automobile are equal to those of connecting the reinforcing member, the lower end of the bumper lower face, and the three members of the connecting plate at one place, while fastening for each connection. There is an advantage that the force is relatively small, the alignment is easy, and the assembling property can be improved.
[0010]
According to a second configuration of the present invention, the connecting plate is an undercover that covers a lower front part of the vehicle.
[0011]
According to the second configuration, an undercover, which is usually provided to cover the lower surface of the front part of the vehicle in order to reduce the running resistance of the vehicle, connects the connection body between the bumper lower face and the reinforcing member and the vehicle body structure. Since it is used as a connecting plate, a new connecting member is unnecessary, and an increase in weight can be suppressed.
[0012]
According to a third configuration of the present invention, an extending portion extending rearward from the reinforcing member is formed, and the extending portion is fastened to the reinforcing structure.
[0013]
According to the third configuration, the reinforcing member and the connecting plate are formed not only with the connecting plate extending forward from the vehicle structure and being connected to the reinforcing member, but also with an extending portion extending rearward from the reinforcing member. The extension and the connection plate overlap with a sufficient overlap margin, and the extension is structured to be fastened to the reinforcing structure formed on the connection plate. The support rigidity for the vehicle structure can be further increased.
[0014]
According to a fourth configuration of the present invention, the bumper lower face is formed to have a shape that once protrudes forward of the vehicle from the opening and retreats rearward as it goes downward, and the reinforcing member is provided inside the rear of the bumper lower face. An upper surface portion extending toward the front of the vehicle so as to be fitted substantially along the face shape, a front surface portion extending downward from the upper surface portion, and a lower surface portion extending rearward from the front portion, and an upper surface portion, a front surface portion, And a vertical rib is provided over the lower surface portion, the upper surface portion is fastened to a vehicle component attached to the bumper face or the bumper lower face itself, and the lower surface portion is fastened to the lower surface portion of the bumper lower face. .
[0015]
According to the fourth configuration, the reinforcing member has a three-dimensional structure by the lower surface, the front surface, and the upper surface, and the upper surface, the front surface, and the lower surface are connected by the vertical ribs. The strength and rigidity of the reinforcing portion in the third configuration are further improved, and the strength of the fastening portion with respect to the bumper face and the vehicle component on the upper surface and the lower surface can be improved. Therefore, it is possible to avoid a situation in which a pedestrian or the like is involved in the lower part of the vehicle.
[0016]
According to the fourth configuration, the front surface of the reinforcing member is a surface extending in the vehicle width direction along the shape of the bumper lower face, and the reinforcing member as shown in the related art projects forward. When a front portion of the vehicle collides with a pedestrian or the like, it is possible to prevent an increase in personal damage to the pedestrian or the like due to a concentrated impact force.
[0017]
According to a fifth configuration of the present invention, a thick portion is formed at a rear end of a lower surface portion of a reinforcing member, and the thick portion is fastened to a rear end of a lower surface portion of a bumper lower face and located in front of the thick portion. A reinforcing concave portion which is depressed upward is formed on a lower surface portion of the reinforcing member.
[0018]
According to the fifth configuration, since the lower surface of the reinforcing portion located in front of the thick portion is not a flat surface but a three-dimensional reinforcing concave portion, the lower end of the lower surface of the reinforcing portion and the lower surface of the bumper lower face. The rigidity in the vicinity of the joint with the rear end can be improved. As a result, in the event of a collision with a pedestrian or the like, the vicinity of the joint between the lower rear end of the reinforcing portion and the lower rear end of the bumper lower face is destroyed, and the pedestrian is crushed. Can be avoided.
[0019]
In a sixth configuration of the present invention, the reinforcing member is provided with a horizontal rib that is substantially perpendicular to the vertical rib.
[0020]
According to the sixth configuration, the strength and rigidity of the reinforcing member are improved by the horizontal ribs and the vertical ribs, and it is possible to prevent the reinforcing portion from breaking in the vehicle width direction due to a low load input.
[0021]
In a seventh configuration of the present invention, the reinforcing member is integrally formed with a grill attached to the opening.
[0022]
According to the seventh configuration, since the reinforcing member has a structure integrally formed with the grill attached to the opening, a member dedicated to the reinforcing member and a member for fastening the reinforcing member are unnecessary, thereby suppressing an increase in weight. And cost reduction is possible.
[0023]
【The invention's effect】
As described above, the present invention enables the reinforcing member to be supported by the rear vehicle structure with high strength while suppressing weight increase, and when the vehicle collides with a pedestrian or the like, the pedestrian or the like is placed under the vehicle. It can be reliably prevented from getting caught on the side.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 is a front view of a bumper structure which is a front structure of an automobile according to the present invention. The bumper structure 1 includes a bumper face 2, a grill 10, a crash can 6 for absorbing energy at the time of collision, a bumper reinforcement 8, and the like, and is assembled to a front portion of the vehicle body. The bumper face 2 is formed integrally with the bumper upper face 2a and the bumper lower face 2b, on which the crash can 6 and the bumper reinforcement 8 are disposed on the rear side, by injection molding, and the bumper upper face 2a and the bumper lower An opening 4 long in the vehicle width direction is formed between the opening 2 and the face 2b. A grill 10 formed in a lattice shape in the opening 4 to introduce outside air into the engine room is inserted and fixed from the front side of the vehicle. I have.
[0025]
As shown in a perspective view from the rear in FIG. 2, a substantially arc-shaped reinforcing member 20 is provided inside the rear of the bumper lower face 2 b so as to extend in the vehicle width direction in plan view. The structure of the reinforcing member 20 will be described in detail with reference to FIG. 2 and FIG. 3A which is an AA cross section in FIG. 2 and FIG. 3B which is a BB cross section in FIG. I do.
[0026]
As shown in FIG. 2, the reinforcing member 20 includes a side surface portion 22 extending rearward at both ends in the vehicle width direction, an upper surface portion 24 extending forward of the vehicle (see FIG. 3A), and a lower portion extending from the upper surface portion 24. An outer frame is formed by a front portion 26 (see FIG. 3A) extending from the front portion 26 and a lower surface portion 28 extending rearward from the front portion 26. A lateral rib 30 connecting the side portions 22 at both left and right sides forms a front portion 26. And a plurality of vertical ribs 32 which are connected to the upper surface portion 24, the front surface portion 26, and the lower surface portion 28, and are substantially orthogonal to the horizontal ribs 30. In FIGS. 2 and 3, the number of horizontal ribs is one, but a plurality of horizontal ribs may be provided.
[0027]
An extended portion 29 extending rearward over a predetermined width is provided near the center of the lower surface portion 28 in the vehicle width direction, and the extended portion 29 utilizes a plurality of mounting holes 29a formed in the surface. , Which is connected to a connecting plate extending forward from a vehicle structure to be described later to increase strength and rigidity.
[0028]
Since the reinforcing member 20 has such a structure, the reinforcing member 20 has high strength and high rigidity, and does not easily bend or break even when the vehicle collides with a pedestrian or the like. It can be prevented from getting caught.
[0029]
Further, since the reinforcing member 20 is so compact that it can be accommodated in the bumper lower face 2b except for the extension 29, an increase in weight can be suppressed.
[0030]
Further, the front portions of the horizontal ribs 30 and the vertical ribs 32 are formed integrally with the front surface portion 26, and do not have a protruding front portion as shown in the related art (see FIG. 11). It is possible to prevent the impact force from being concentrated on the collision portion of the body of the pedestrian or the like by the impact absorber tip, and it is also possible to reduce the degree of damage to the collision portion.
[0031]
A connection structure between the reinforcing member 20 and the bumper face 2 will be described with reference to FIG. FIG. 3A is a diagram illustrating a state in which the bumper face 2 is connected to the reinforcing member 20 in the AA cross section in FIG. 2, and FIG. 3B is a BB cross section in FIG. 3A. FIG.
[0032]
As shown in FIG. 3A, an opening 4 is formed between the bumper upper face 2a and the bumper lower face 2b, and the grill 10 is inserted into the opening 4 from the front side and attached. The lower bumper face 2b below the opening 4 is formed to have a shape that once protrudes forward from the above opening, retreats backward as it goes downward, and extends to a substantially horizontal bumper lower face rear end 2d.
[0033]
The reinforcing member 20 has an upper surface portion 24 protruding forward, a front surface portion 26 extending downward from the upper surface portion 24, and a lower surface portion 28 extending rearward as it goes further downward, and is housed in the rear portion of the bumper lower face 2b. It has been like that. A plurality of edges 14 (see FIG. 2) extending upward from the rear of the upper surface 24 of the reinforcing member 20 and a plurality of extensions 14 a extending further upward from the edges 14 are provided in the vehicle width direction. In addition, an insertion hole 18 is formed in each of the extension portions 14a. On the other hand, a fastening hole 2h is provided at the upper end of the bumper lower face 2b, the insertion hole 18 of the reinforcing member 20 is aligned with the fastening hole 2h, and fastened to the bumper lower face 2b by the fastening member 37.
[0034]
The lower surface 28 has a plurality of thick portions 34 formed rearward (see FIG. 2), and is fastened to the rear end 2d of the bumper lower face by a connecting member 36. The hanging portion 2f extending downward at the rear end 2d of the bumper lower face reduces the running resistance of the vehicle, improves the appearance from the front of the vehicle, and damages the fastening members and the vicinity of the fastening portion due to flying stones during running. It also has the effect of preventing rips.
[0035]
The lower surface portion 28 of the reinforcing member 20 reaching the thick portion 34 has a reinforcing concave portion 28a that is recessed toward the upper direction as can be seen from FIG. are doing. That is, the lower surface portion 28 has a three-dimensional structure having walls in three directions at the front portion of the thick portion which is the fastening portion with the rear end portion 2d of the bumper lower face. It has a high strength structure that does not break.
[0036]
Next, the connection between the extension portion 29 extending rearward over a predetermined width in the vicinity of the center of the lower surface portion 28 in the vehicle width direction and the connection plate extending forward from the vehicle structure is shown in FIG. FIG. 5 showing a cross-sectional shape of the plate, FIG. 6 being a plan view showing a connection structure between the reinforcing member 20 and the connection plate, and a D1-D2 cross section in FIG. 6, ie, the extended portion 29 and the connection plate, and a vehicle structure. This will be described with reference to FIG.
[0037]
First, the structure of the connecting plate will be described with reference to FIG. In the present embodiment, the connection plate also serves as an undercover 50 that covers the lower part of the vehicle body. The undercover is one of vehicle components generally provided to reduce running resistance during running of the vehicle, and a front portion of the undercover 50 in the embodiment of the present invention is a lower portion 28 of the reinforcing member 20. The rear portion is formed in a shape extending along the vehicle width direction (see FIG. 6).
[0038]
The cross-sectional shape of the undercover 50 extends forward after descending forward from the rear connecting surface 50a, the rear connecting surface 50a, as shown in FIG. 5A showing the cross section C1-C1 in FIG. Plane 50b, inclined surface 50c extending forward and upward from plane 50b, reinforcing structure upper surface 50d extending forward from inclined surface 50c, inclined surface 50e extending forward and downward from reinforcing structure upper surface 50d, and further extending forward from inclined surface 50e. It has a thick portion 34 of the reinforcing member 20 and a front connecting surface 50f connected to the rear end 2d of the bumper lower face 2b. The plurality of round holes 50g provided in the rear connection surface 50a are for connecting to a cross member 52 (see FIG. 7) as a vehicle structure via a fastening member. As will be described later, the plurality of round holes 50h provided in the front connection surface 50f are for connecting to the rear end 2d of the bumper lower face 2b through the fastening members 38f.
[0039]
The cross-sectional shape of the undercover 50 has a plurality of reinforcing structures that are depressed upward with the plane 50b described above as a reference plane, as shown in FIG. 5B showing the cross section C2-C2 in FIG. ing. Specifically, an inclined surface 50j that connects the reinforcement structure upper surfaces 50d and 50i is formed so as to be inclined from the plane 50b, and has a three-dimensional structure in which the concave portions 51 and 52 are provided. That is, taking the concave portion 51 as an example, a three-dimensional reinforcing structure portion 55 is formed by the flat surface 50b, the inclined surface 50c, the reinforcing structure portion upper surface 50d, the inclined surface 50e, and the inclined surface 50j that form the concave portion 51. I have. With this structure, strength and rigidity against impact from the front are secured, and when the vehicle collides with a pedestrian or the like, the reinforcing member 20 bends or retreats, and the pedestrian or the like is rolled into the lower part of the vehicle body. Can be avoided. In addition, the inclined surface which once descends to the plane 50b is not formed behind the reinforcing structure upper surface 50i, but a three-dimensional structure in which the concave portion 52 is formed by the inclined surface 50j and the inclined surface 50m in front of the reinforcing structure upper surface 50i. Since it has a structure, it functions as the reinforcing structure 56.
[0040]
Next, a connection structure of the extension portion 29 extending rearward from the lower surface portion 28 of the reinforcing member 20 and the under cover 50 as the connection plate will be described with reference to FIG. 6 and FIG. 7 showing a D1-D2 cross section thereof. . As shown in FIG. 6, the extending portion 29 is installed on the upper surface of the reinforcing structure upper surface 50d, 50i of the undercover 50, and the mounting hole 50k formed in the reinforcing structure upper surface 50d, 50i and the extending portion 29 are formed. After being aligned with the mounting hole 29a (see FIG. 7) formed in the above, it is fastened by the fastening member 38b.
[0041]
Further, as shown in FIG. 7, a cross member 52 as a vehicle structure extending in the vehicle width direction is provided on the upper surface of a rear connecting surface 50a provided at the rear end of the under cover 50. They are connected by a fastening member 38c.
[0042]
On the other hand, the thick part 34 provided at the rear end of the lower surface part 28 of the reinforcing member 20 and the rear end 2d of the bumper lower face 2b are connected by a fastening member 38a.
[0043]
Next, the connection between the bumper lower face 2b and the undercover 50 will be described with reference to FIG. 8, which illustrates a cross section taken along line D1-D3 in FIG. As can be seen from FIG. 6, the cross section D1-D3 is a cross section of the cross section D1-D2 near the vehicle width direction. In this cross section, the rear end 2d of the bumper lower face 2b extends forward from the cross member 52. The under cover 50 is connected to a front connecting surface 50f by a fastening member 38f. As shown in FIG. 6, the plurality of round holes 50 h provided in the under cover 50 are provided near the plurality of thick portions 34 of the reinforcing member 20, respectively. It can be seen that the under cover 50, the reinforcing member 20, and the bumper lower face 2b are connected at a nearby position.
[0044]
Therefore, the connecting point between the reinforcing member 20 and the bumper lower face 2b and the connecting point between the bumper lower face 2b and the under cover 50 are close to each other, and the reinforcing member 20 and the under cover 50 are in a narrow range via the bumper lower face 2b. Because of the integrated structure within the vehicle, rather than connecting these connecting parts at long intervals, the vicinity of the connecting part is a vehicle front structure that has high strength and high rigidity due to the synergistic effect of the connecting strength of these connecting parts. When the front portion of the vehicle collides with a pedestrian or the like, it is possible to prevent the reinforcing member 20 from bending or retreating backward and the pedestrian or the like from being caught in the lower part of the vehicle body. Further, in this structure, two members may be connected at a time as compared with a case where three members of the reinforcing member 20, the bumper lower face 2b, and the under cover 50 are connected at one place, so that a fastening force for connection is relatively small. In addition, there is an advantage that the alignment is easy and the assembling property is good.
[0045]
Next, a second embodiment according to the present invention will be described. The second embodiment has a structure in which a reinforcing member is integrally formed with a grill provided in the opening 4 (hereinafter, referred to as a grill-integrated reinforcing member), and FIG. 9 is a perspective view from the rear. Is shown.
[0046]
In FIG. 9, the grille-integrated reinforcing member 60 is formed with a lattice portion 62 whose upper part is formed in a lattice shape and an edge 64 surrounding the periphery of the lattice portion 62, and a lower edge 64 of the lattice portion 62 is a hanging surface. The reinforcing member 70 corresponding to the reinforcing member 20 in the first embodiment is integrally connected via the hole 64a. A plurality of engagement holes 68 are formed in the hanging surface 64a, and the engagement holes 68 are engaged with claws formed on an upper end portion of a bumper lower face described later.
[0047]
The reinforcing portion 70 formed below the grille-integrated reinforcing member 60 is different from the reinforcing member 20 described in the first embodiment in that the plurality of extension portions 14a and the insertion holes 18 of the extension portions 14a are not formed. Except for having almost the same structure.
Hereinafter, the structure of the reinforcing portion 70 will be described with reference to FIG. 9, FIG. 10A showing the cross section EE of FIG. 9, and FIG. 10B showing the cross section FF of FIG. 9.
[0048]
As shown in FIG. 9, the reinforcing portion 70 has side portions 72 extending rearward from left and right ends in the vehicle width direction, and these left and right side portions 72 and a front portion 76 (see FIG. 10A). A horizontal rib 80 is formed between the two. In addition, a vertical rib 82 substantially orthogonal to the horizontal rib 80 is formed over the upper surface 74 (see FIG. 10A), the front surface 76, and the lower surface 78.
[0049]
As described above, the reinforcing portion 70 has an outer frame formed by the side surface portion 72, the upper surface portion 74, the front surface portion 76, and the lower surface portion 78, and the horizontal ribs 80 and the vertical ribs 82 connecting these surface portions are integrally formed. Therefore, the structure has high strength and rigidity, and when the vehicle collides with a pedestrian or the like, it is possible to prevent the reinforcing portion 70 from bending and the pedestrian or the like from being caught in the lower part of the vehicle body.
[0050]
Next, the structure of the connection between the reinforcing portion 70 and the bumper face will be described with reference to FIGS. 9 and 10. In FIG. 10, the reference numerals of the bumper faces are the same as those in the first embodiment. FIG. 10A shows an EE cross section of FIG. As shown in FIG. 10A, a plurality of thick portions 84 are formed on the lower surface portion 78 of the reinforcing portion 70 at the rear (see FIG. 9), and are fastened to the rear end portion 2d of the bumper lower face by the connecting member 36. Have been. An extended portion 79 extending rearward over a predetermined width is provided integrally near the center of the lower surface portion 78 in the vehicle width direction. The hanging portion 2f extending downward at the rear end 2d of the bumper lower face has the same effect as that described in the first embodiment.
[0051]
The lower surface portion 78 of the reinforcing portion 70 reaching the thick portion 84 has a reinforcing concave portion 78a that is recessed toward the upper direction, as can be seen from FIG. 10C showing a GG cross section of FIG. are doing. That is, since the lower surface portion 78 has a three-dimensional structure having walls in three directions at the front portion of the thick portion which is the fastening portion with the rear end portion 2d of the bumper lower face, the vicinity of the fastening portion can be easily formed at the time of collision. It has a high strength structure that does not break.
[0052]
The fastening structure between the lower part of the bumper lower face 2b and the reinforcing part 70 has been described above. Next, the fastening structure between the upper part of the bumper lower face 2b and the reinforcing part 70 includes the engaging hole 68 in FIG. This will be described with reference to FIG. 10B showing a state in which the bumper face 2 is connected to the grille-integrated reinforcing member 60 in the FF cross section.
[0053]
In the cross section FF, unlike the cross section EE, the thick portion 84 is not formed behind the lower surface portion 78 in the reinforcing portion 70, and therefore, is not fastened to the bumper lower face rear end portion 2d. However, the engaging hole 68 is provided in the hanging surface 64a formed above the reinforcing portion 70, and the claw portion 2c extending rearward from the upper surface portion 2e of the bumper lower face 2b is inserted into the engaging hole 68, The claw portion 2c is formed at the rear end of the upper surface portion 74 of the reinforcing portion 70, and is engaged with the claw engaging portion 24a, which is the lower surface of the engaging hole 68. In another embodiment, the shape of the claw portion 2c may be inverted so as to be engaged with the grill side.
[0054]
As can be understood from the above description, the grille-integrated reinforcing member 60 is configured such that the grid portion 62 is aligned with the opening 4 of the bumper face 2 and the engaging hole 68 is aligned with the claw portion 2c. 2 from the rear side, and the thick portion 84 of the reinforcing portion 70 and the rear end 2d of the bumper lower face are fastened. As a result, the number of separate components for assembling can be reduced, the assemblability can be improved, the cost can be reduced, and the grille is more closely aligned with the opening in the bumper face. There is also an advantage that the appearance can be improved.
[0055]
Note that the connection structure between the reinforcing portion 70 and the bumper lower face 2b and the connection structure between the under cover as the connection plate and the bumper lower face 2b are the same as those described with reference to FIG. 7 or FIG. . Therefore, the connection structure of the reinforcing portion 70, the bumper lower face 2b, the under cover as the connection plate, and the cross member as the vehicle structure in the second embodiment is the same as that in FIG. 20 may be replaced with the reinforcing portion 70, the lower surface portion 28 may be replaced with 78, and the thick portion 34 may be replaced with 84, and the effect is the same as that described with reference to FIG. 7 or FIG. In addition, as another embodiment, a vehicle structure other than the cross member can be applied.
[Brief description of the drawings]
FIG. 1 is a front view of a front structure of an automobile according to the present invention; FIG. 2 is a rear perspective view of a reinforcing member according to a first embodiment; FIG. FIG. 4 is a perspective view showing the shape of the connecting plate. FIG. 5 is a diagram showing the cross-sectional shape of C1-C1 and C2-C2 in FIG. 4. FIG. 6 is a diagram showing the connecting structure of the connecting plate and the reinforcing member. 7 is a view showing a cross section taken along line D1-D2 of FIG. 6; FIG. 8 is a view showing a cross section taken along line D1-D3 of FIG. 6; FIG. 9 is a rear perspective view of a grill-integrated reinforcing member according to a second embodiment; FIG. 11 is a diagram showing a cross section taken along the line EE and FIG. 11 is a diagram showing a conventional technology.
DESCRIPTION OF SYMBOLS 1 ... Bumper structure 2 ... Bumper face 2a ... Bumper upper face 2b ... Bumper lower face 4 ... Opening 10 ... Grill 20 ... Reinforcement member 22, 72 ... Side part 24, 74 ... Top part 26, 76 ... Front part 28, 78 ... Lower part 28a, 78a ... Reinforcement concave part 29, 79 ... Extension part 30, 80 ... Side Ribs 32, 82 Vertical ribs 34, 84 Thick portion 36 Fastening member 50 Undercover (connection plate)
52 Cross member (vehicle structure) 55, 56 Reinforcement structure 60 Grill-integrated reinforcement member 70 Reinforcement

Claims (7)

A front structure of a vehicle having an opening for introducing outside air in a bumper face, and having a reinforcing member behind and inside a bumper lower face below the opening and constituting a part of the bumper face,
The reinforcing member is attached to a lower end of the bumper lower face, and a connecting plate connecting the vehicle structure disposed behind the bumper face is connected near the mounting portion in the vehicle width direction. A front structure of an automobile, wherein a reinforcing structure is provided between both connecting portions of a connecting plate. The front structure of an automobile according to claim 1, wherein the connecting plate is an undercover that covers a lower front part of the vehicle. The vehicle front structure according to claim 1, wherein an extension portion extending rearward from the reinforcement member is formed, and the extension portion is fastened to the reinforcement structure portion. The bumper lower face is formed to have a shape that once protrudes forward of the vehicle from the opening and retreats rearward as it goes downward, and the reinforcing member is substantially shaped like the bumper lower face behind and inside the bumper lower face. An upper surface portion extending toward the front of the vehicle so as to fit along, a front surface portion extending downward from the upper surface portion, and a lower surface portion extending rearward from the front surface portion, and the upper surface portion, the front surface portion, and A vertical rib is provided over the lower surface, the upper surface is fastened to a vehicle component attached to the bumper face or the bumper lower face itself, and the lower surface is fastened to a lower surface of the bumper lower face. The vehicle front structure according to any one of claims 1 to 3, characterized in that: A thick portion is formed at a rear end of a lower surface portion of the reinforcing member, and the thick portion is fastened to a rear end of a lower surface portion of the bumper lower face, and the reinforcing member positioned in front of the thick portion is formed. The front structure of an automobile according to claim 4, wherein a reinforcing concave portion that is concave upward is formed in the lower surface portion. The front structure of an automobile according to claim 5, wherein the reinforcing member is provided with a horizontal rib substantially orthogonal to the vertical rib. The front structure of an automobile according to any one of claims 1 to 6, wherein the reinforcing member is integrally formed with a grill attached to the opening.

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