Front structure of vehicle

Abstract

The present application provides a front structure of a vehicle, which has both support rigidity and assembly accuracy of a bumper outer panel at normal times and a crash stroke of a front portion of the vehicle at the time of a frontal collision even in a vehicle with a high vehicle height. The front structure includes a vehicle body member (15, 17) provided at a front portion of a vehicle body; a bumper outer panel support member (18) that supports a bumper outer panel (3) in front of the vehicle body member (15, 17); a plurality of brackets (20) that link and fix the vehicle body member (15, 17) and the bumper outer panel support member (18); the bracket (20) has an inclined portion (26) that is inclined to an outer side in a vehicle width direction as it goes forward; a high rigidity portion (63U, 63D) that is located at least in part in the inclined portion (26) and has high rigidity with respect to an input load in a front-rear direction; a weak portion (62, 61f, 61r) that can be deformed with respect to the input load in the front-rear direction; and the high rigidity portion (63U, 63D) and the weak portion (62, 61f, 61r) are disposed adjacent to each other in the front-rear direction.

Description

TECHNICAL FIELD

[0001] The present application relates to a front structure of a vehicle, the front structure of the vehicle having a bumper outer panel provided at a front portion of the vehicle, and a vehicle body member that supports the bumper outer panel from a rear portion of the vehicle body relative to the bumper outer panel. BACKGROUND

[0002] Patent Document 1 discloses a bumper mounting structure in which a bumper outer panel is mounted on a protruding piece portion that protrudes forward from an upper member of a radiator shield provided at an upper portion of a radiator shield.

[0003] As exemplified in Patent Document 1, a structure is known in which a bumper outer panel provided at a front portion of a vehicle body is supported in a cantilevered manner by a vehicle body member such as an upper member of a shield provided at the front portion of the vehicle body.

[0004] Generally, however, in a vehicle having a high vehicle height, a front end portion of an engine hood located at an upper end of a front portion of the vehicle is located at the height of a pedestrian's thigh. Therefore, in a vehicle having a high vehicle height, a structure is known in which, in order to satisfy pedestrian protection conditions such as mitigating the impact on a pedestrian's knee ligament at the time of a collision between the vehicle and the pedestrian, the front end portion of the engine hood is retracted from the frontmost portion of the vehicle.

[0005] In addition, the vehicle body member such as the upper member of the shield is generally provided with a latch that is locked by engaging with a lock catch that protrudes downward from the engine hood in a state in which the engine hood is closed. Therefore, in a vehicle having a high vehicle height, the vehicle body member such as the upper member of the shield is generally retracted together with the engine hood as the front end portion of the engine hood is retracted as described above.

[0006] In the above-described structure, the distance in the front-rear direction between the bumper outer panel support member having the mounting portion for mounting the bumper outer panel and the vehicle body member such as the upper member of the shield that cantilevered supports the bumper outer panel support member from the rear portion becomes longer, and thus the moment acting on the vehicle body member becomes larger, and the support rigidity of the bumper outer panel and the assembly accuracy can be reduced.

[0007] In order to address the above-described technical problem, if the bracket is used to connect the bumper outer panel support member and the vehicle body member such as the upper member of the shield at the shortest distance, the length of the moment (the length of the arm of the moment) can be suppressed, but in this case, the bracket can hit against the vehicle body member such as the upper member of the shield at the time of a frontal collision of the vehicle, and thus a new technical problem can arise in which the stroke (the collision stroke) of the front portion of the vehicle body for retracting in order to absorb the load of the frontal collision is impeded.

[0008] PRIOR ART DOCUMENTS

[0009] PATENT DOCUMENT

[0010] Patent Document 1: Japanese Patent Application Publication No. 2015-196443 SUMMARY

[0011] PROBLEMS TO BE SOLVED BY THE INVENTION

[0012] The present application has been made in view of the above technical problems, and aims to provide a front structure of a vehicle, according to which even in a vehicle with a high vehicle height, both the support rigidity and assembly accuracy of the bumper outer panel at normal times and the crash stroke of the front portion of the vehicle at the time of a frontal collision can be achieved.

[0013] MEANS OF SOLVING THE PROBLEMS

[0014] The front structure of a vehicle of the present application is provided with: a vehicle body member provided at the front portion of a vehicle body; a bumper outer panel support member extending in the vehicle width direction in front of the vehicle body member and having a mounting portion for mounting a bumper outer panel; a plurality of brackets that link and fix the vehicle body member and the bumper outer panel support member; wherein the bracket has: an inclined portion that is inclined more toward the inner side or the outer side of the vehicle width direction as it goes further forward; a high rigidity portion that is at least a part of the inclined portion and has high rigidity with respect to input load in the front-rear direction; a weak portion that can be deformed with respect to input load in the front-rear direction; and the high rigidity portion and the weak portion are provided adjacent to each other in the front-rear direction.

[0015] According to the above structure, the rigidity of the bracket at normal times can be improved by the high rigidity portion. Therefore, the support rigidity and assembly accuracy of the bumper outer panel can be improved. In addition, at the time of a frontal collision, with respect to load input from the front, bending stress is easily generated in the bracket by the inclined portion, and the weak portion adjacent to the high rigidity portion is easily deformed. Therefore, by the crumple deformation of the bracket at the time of a frontal collision, the crash stroke can be ensured.

[0016] As a mode of the present application, the bracket can be provided with: a base portion that extends in a plan view at a first angle forward from a fixing portion to the vehicle body member; and the inclined portion that extends at a second angle forward from a front end portion of the base portion via a crumple portion.

[0017] According to the above structure, at the time of a frontal collision, by the crumple portion, bending deformation is generated in the bracket, and the collapse residue of the bracket can be suppressed.

[0018] As a mode of the present application, the crumple portion and the high rigidity portion can be provided at the same position in the front-rear direction.

[0019] According to the above structure, even in the high rigidity portion in which the yield strength with respect to bending load is improved, the bending deformation of the crumple portion can be actually generated by taking the crumple portion as the starting point of the bending deformation, and thus the energy absorption amount of the bracket at the time of a frontal collision can be improved.

[0020] As a mode of the present application, it can be that the bracket has a side wall portion extending in the up-down direction and the front-rear direction, and a flange portion formed by bending an upper end of the side wall portion at a corner portion, and the fragile portion is a rib portion provided at the corner portion.

[0021] According to the structure, the bracket rigidity can be improved by the corner portion (edge line) extending in the front-rear direction, and the bending deformation of the bracket can be induced by the rib portion as the fragile portion at the time of the frontal collision.

[0022] As a mode of the present application, it can be that the fragile portion is a recess portion formed by being recessed downward in a side view at an upper end portion of the bracket.

[0023] According to the structure, the upper end portion of the bracket forms an edge line along the vehicle width direction at the recess portion, and thus, when an impact load in the downward direction is input to the bumper outer panel support member, the deformation in which the front portion is bent downward with respect to the rear portion with respect to the recess portion is induced by the recess portion. Therefore, the injury value of the collision object (pedestrian protection performance) can be reduced by the deformation of the bracket downward at the time of the frontal collision.

[0024] As a mode of the present application, it is preferable that the recess portion and the rib portion are provided at the same position in the front-rear direction of the bracket.

[0025] According to the structure, the collision stroke can be ensured by the deformation of the bracket in the front-rear direction at the time of the frontal collision, and the injury value of the collision object (pedestrian protection performance) can be reduced by the deformation downward.

[0026] As a mode of the present application, it is preferable that at least one of the front end portion and the rear end portion of the high rigidity portion is provided at the same position as the recess portion in the front-rear direction.

[0027] According to the structure, the collision stroke can be ensured by the deformation of the bracket in the front-rear direction at the time of the frontal collision, and the injury value of the collision object (pedestrian protection performance) can be reduced by the deformation downward.

[0028] Effects of the Invention

[0029] According to the structure, even in a vehicle having a high vehicle height, it is possible to have both the support rigidity and the assembly accuracy of the bumper outer panel at the time of normal use, and the collision stroke of the front portion of the vehicle at the time of the frontal collision. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is an oblique view of the front portion of the vehicle of the present embodiment;

[0031] Figure 2 is an oblique view of the front portion of the vehicle of the present embodiment;

[0032] Figure 3 is Figure 2enlarged oblique view from the front;

[0033] Figure 4 is a plan view of a main portion of the vehicle front portion of the embodiment;

[0034] Figure 5 is Figure 3 is an enlarged oblique view of the central portion in the vehicle width direction, with the bumper outer panel support member removed, further enlarged;

[0035] Figure 6 is Figure 4 is a plan view with the bumper outer panel removed and with the shroud upper panel, shroud member, and bumper outer panel support member illustrated by phantom lines;

[0036] Figure 7 is a cross-sectional view along the A-A line of Figure 4

[0037] (a) is a plan view of the outer side bracket provided on the right side of the vehicle, and (b) is a left side view of the same; Figure 8

[0038] (a) is an oblique view from the left side and above of the outer side bracket provided on the right side of the vehicle, and (b) is an enlarged cross-sectional view along the C-C line of Figure 9 Figure 8 (a) is a plan view of the outer side bracket provided on the right side of the vehicle, and (b) is a left side view of the same;

[0039] Figure 10 is a plan view corresponding to a main portion of Figure 6 corresponding to a main portion of

[0040] Figure 11 (a) is a stress distribution acting on the outer side bracket during the middle of the collision, and (b) is a stress distribution acting on the outer side bracket during the later stage of the collision, respectively, and Figure 10 corresponding to a main portion of

[0041] Figure 12 is an oblique cross-sectional view along the B-B line of Figure 4 corresponding to a main portion of

[0042] Figure 13 is an oblique cross-sectional view corresponding to a main portion of Figure 12 corresponding to a main portion of DETAILED DESCRIPTION

[0043] An embodiment of the present application will be described below with reference to the accompanying drawings. Figure 1

[0044] ​​In the drawing, the arrow F indicates the front of the vehicle, the arrow U indicates the upper side of the vehicle, the arrow R indicates the right side of the vehicle, and the arrow L indicates the left side of the vehicle.

[0045] The vehicle having the front structure of the present application is suitable for an SUV, a minivan, or the like, which is higher than a sedan or a hatchback. The front structure of the present embodiment is generally left-right symmetrical.

[0046] As shown in Figure 1 , the front portion of the vehicle is provided with an engine hood 2 covering the upper side of a power unit compartment 1 (refer to Figure 2 ) in which a power unit such as an engine is mounted, and a synthetic resin bumper outer panel 3 disposed at the frontmost portion of the vehicle. A front side opening portion 4 for taking fresh air (traveling air) into the vehicle body is formed in the bumper outer panel 3.

[0047] The front side opening portion 4 is an external air inlet formed in the upper portion of the bumper outer panel 3 at the center in the vehicle width direction, and is provided to introduce external air for cooling into the power unit compartment 1 disposed at the front side of the power unit compartment 1 disposed at the rear of the bumper outer panel 3, for the purpose of cooling a radiator (not shown) disposed in the power unit compartment 1.

[0048] The front side opening portion 4 is covered by a front grille 5 while ensuring air permeability into the power unit compartment 1. Front light opening portions 6 for disposing headlamps 6a (refer to Figure 4 ) are provided in the left and right upper portions of the bumper outer panel 3.

[0049] The front grille 5 extends to the inside in the vehicle width direction of the front light opening portions 6 disposed on both sides of the front side of the vehicle at a portion corresponding to the front side opening portion 4 disposed at the center in the vehicle width direction of the bumper outer panel 3 in the front view, and is attached to the bumper outer panel 3.

[0050] A bumper outer panel upper piece 7 constituting the upper end portion of the bumper outer panel 3 and connected to the front end 2f of the engine hood 2 is provided at the upper end side of the bumper outer panel 3. The bumper outer panel upper piece 7 is a portion integrally formed with the main portion 3a (lower portion) of the bumper outer panel 3, and divides the upper side portions of the front side opening portion 4 and the left and right front light opening portions 6. The bumper outer panel upper piece 7 is a flat plate member provided with an upper side, and the inclination of the upper side is substantially identical to the inclination of the upper side of the engine hood 2, which is low at the front and high at the rear.

[0051] The rear end of the engine hood 2 is pivotally supported to the vehicle body by a hinge (not shown), and the engine hood 2 opens and closes the upper side of the power unit compartment 1.

[0052] As shown in Figure 12As shown, the hood 2 is formed by integrating a hood outer panel 2a and a hood inner panel 2b by bonding them together through hemming, and a hood reinforcement (not shown) is bonded and fixed to the lower side of the hood outer panel 2a.

[0053] A striker (not shown) that locks the hood 2 by engaging with a latch (not shown) provided on the vehicle body side when the hood 2 is closed is provided in a downwardly projecting state at the front of the center portion in the vehicle width direction of the hood inner panel 2 b.

[0054] like Figures 2-4 As shown, in the front of the vehicle, the left and right sides of the power unit compartment 1 are provided with front side frames 8 extending in the front and rear directions of the vehicle. Figure 2 、 Figure 3 ) is equipped with a crash can 11 extending toward the front of the vehicle.

[0055] In addition, if Figures 2-4 As shown, a bumper beam 12 (also called a bumper reinforcement) is provided at the rear lower portion of the bumper outer panel 3 and in front of the power unit compartment 1 , extending in the vehicle width direction and connecting the front ends of the left and right paired crash boxes 11 .

[0056] like Figure 2 、 Figure 3 As shown, the bumper beam 12 is roughly divided into a bumper beam main body 12a with a generally hat-shaped cross section and an open front portion, and a closing plate portion 12b that closes the open front portion of the bumper beam main body 12a. A closed cross section 12c extending in the vehicle width direction is formed between the bumper beam main body 12a and the closing plate portion 12b. The bumper beam 12 is located at the front end 2f of the hood 2 in the vehicle front-rear direction.

[0057] A pair of left and right skirt reinforcements 13 extending in the vehicle front-rear direction are further provided inside the vehicle front portion, outward in the vehicle width direction relative to the front side frame 8 and above the vehicle.

[0058] Figure 2 、 Figure 3 Reference numeral 14 in the figure denotes a fender panel forming an outer side surface of the front portion of the vehicle body, which is supported by the skirt reinforcement 13 .

[0059] like Figures 2-4 As shown, a shroud upper panel 15 extending linearly in the vehicle width direction between the front ends of the left and right paired apron reinforcements 13 is connected to the front ends of the left and right paired apron reinforcements 13 in the vehicle width direction via left and right side shroud members 16 .

[0060] The shroud members 16 on the left and right sides are each provided with a latch (not shown) as a lock device that engages with a lock catch (not shown) provided on the side of the hood 2. Figure 4 The area LR surrounded by the imaginary line corresponds to the latch provided portion.

[0061] As shown in Figure 4 , the front portions of the left and right front side frames 8 are positioned immediately below the left and right outer portions of the shroud upper panel 15. Also, as shown in Figure 2 , Figure 3 , Figures 5-7 , the shroud members 16 and the front portions of the front side frames 8 are connected by the shroud upper support frames 17 that extend in the vertical direction between these two members.

[0062] That is, as described above, the shroud upper panel 15 is supported by the skirt reinforcement members 13 on the left and right sides via the shroud members 16, and is supported by the front side frames 8 on the left and right sides via the shroud members 16 and the shroud upper support frames 17.

[0063] As shown in Figure 3 , Figures 5-7 , the shroud upper support frames 17 have a longitudinal wall-shaped vehicle width direction inner face portion 17a that has a plate thickness in the vehicle width direction, a longitudinal wall-shaped front side portion 17b that extends outward in the vehicle width direction from the front end of the vehicle width direction inner face portion 17a and has a plate thickness in the vehicle front-rear direction, and are formed integrally from these members.

[0064] The left and right pair of skirt reinforcement members 13, the shroud upper panel 15, the left and right pair of front side frames 8, the left and right pair of shroud upper support frames 17, and the left and right pair of shroud members 16 and the bumper beam 12 are all vehicle body members.

[0065] In addition, as shown in Figures 2-4 , Figure 7 , a bumper outer panel support member 18 is provided in the interior of the vehicle front portion, forward of the shroud upper panel 15 in the vehicle front-rear direction.

[0066] The bumper outer panel support member 18 extends in the vehicle width direction to a length that is slightly shorter than the bumper beam 12 (see Figure 4 ), and is provided at substantially the same height as the shroud upper panel 15 at a position in the vehicle front-rear direction that corresponds to the front portion of the hood 2, in other words at a position in the vehicle front-rear direction that is substantially the same as the bumper beam 12 (see Figure 3 , Figure 7 ).

[0067] The bumper outer panel support member 18 is arranged immediately below the bumper outer panel upper member 7 in the bumper outer panel 3, and supports the bumper outer panel 3 from below the bumper outer panel upper member 7. The bumper outer panel support member 18 is attached to the inner side portion of the vehicle body of the bumper outer panel upper member 7 by bolts or the like. The Figures 2-4 The number 18a in the drawing is a bumper outer panel mounting hole of the bumper outer panel 3 (refer to Figure 1 ).

[0068] In addition, a radiator shroud is provided at the rear of the bumper outer panel support member 18 and at the front side of the power unit compartment 1, and the drawing is omitted. The radiator shroud is supported by the vehicle body members such as the shroud upper panel 15, the front side frame 8, and the like.

[0069] The radiator shroud is in a rectangular frame shape in the front view between the front side frames 8 at the front side of the power unit compartment 1, and supports a radiator (omitted from the drawing) and the like. The radiator shroud and the radiator are arranged vertically, and face the front side opening portion 4 from the rear of the vehicle.

[0070] Furthermore, as shown in Figures 2-6 , a plurality of brackets 20, 30 that link and fix the vehicle body members (15, 17) and the bumper outer panel support member 18, and a support member 40 that links the bumper outer panel support member 18 and the bumper beam 12 in the up-down direction are provided in the front portion of the vehicle body.

[0071] The brackets 20, 30 include three brackets: an outer bracket 20 arranged on both outer sides in the vehicle width direction, and a middle bracket 30 arranged at a middle position in the vehicle width direction (i.e., a position coinciding with the support member 40 in the vehicle width direction).

[0072] As shown in Figure 5 , the middle bracket 30 has a bracket main body portion 31 extending linearly between the support member 40 and the shroud upper panel 15 in the vehicle front-rear direction, a front flange portion 32, and a rear flange portion 33, and is formed integrally from these members. In the present embodiment, the middle bracket 30 is formed by bending processing such as press forming of a plate material extending in the vehicle front-rear direction and the vehicle width direction.

[0073] As shown in Figures 4-6 , on the upper side portion 31a of the bracket main body portion 31, a lock catch 34 of a safety lock device is vertically arranged toward the upper side.

[0074] A lock lever (not shown) of a safety lock device is provided in the front central portion of the hood 2 and is engageable with and disengageable from the lock catch 34. The safety lock device is a well-known device for preventing the hood 2 from being inadvertently opened by wind pressure or the like while the vehicle is running, and thus even if the locking device (not shown) is accidentally unlocked, the hood 2 is restricted from being moved in the opening direction, and the hood 2 is held in a slightly open state. In the present embodiment, as described above, the safety lock device is provided at a position (see Figure 4 ) other than the area LR surrounded by the imaginary line of the locking device (see Figure 4 ).

[0075] As shown in Figure 5 , the intermediate bracket 30 extends from the rear of the vehicle toward the front and the front end thereof straddles the upper end of the support 40 from above, and the front side of the intermediate bracket 30 abuts against the upper portion (the upper portion of the upper flange portion 41 described later) of the support 40 from the front side of the vehicle. The front side flange portion 32 of the intermediate bracket 30 is joined to the upper portion of the support 40 by spot welding or the like. In the present embodiment, however, the upper flange portion 41 and the front side flange portion 32 are spot welded at three positions, i.e., the central portions Sa and the two outer portions Sb, Sc in the respective vehicle width directions. In addition, Figure 5 , the "X" marks the welding points of the spot welding.

[0076] On the other hand, the rear side flange portion 33 of the intermediate bracket 30 protrudes upward from the rear end of the bracket main portion 31 and abuts against the lower flange portion 15a of the hood upper panel 15 from the front side of the vehicle. In addition, as shown in Figures 4-6 , the rear side flange portion 33 of the intermediate bracket 30 and the lower flange portion 15a of the hood upper panel 15 are fastened to each other by the bolt B2 and the nut N2 (see Figure 6 ) as a fastening module.

[0077] With the above structure, the intermediate bracket 30 links the hood upper panel 15 and the support 40 to each other between the hood upper panel 15 and the support 40.

[0078] The outer bracket 20 will be described later.

[0079] The support 40 is formed of a long metal plate material having a wide width in the vehicle width direction and extending in the vertical direction.

[0080] Specifically, as shown in Figure 5 , the support 40 has the upper flange portion 41, the first extension portion 42 extending linearly downward from the lower end of the upper flange portion 41 in a direction (vertical direction) coinciding with the vertical direction, the second extension portion 44 extending linearly while being inclined so as to be located more forward as it goes downward from the lower end of the first extension portion 42 via the first bent portion 43, and the lower flange portion 46 extending downward from the lower end of the second extension portion 44 via the second bent portion 45.

[0081] The first bent portion 43 is a deformation promoting portion that is bent and deformed when an impact load in the downward direction is input to the bumper outer panel support member 18.

[0082] As shown in Figure 5 , the support member 40 is connected to the bumper outer panel support member 18 via the connecting plate 50.

[0083] The connecting plate 50 has a horizontal plate portion 51 that extends horizontally in the vehicle front-rear direction and supports the bumper outer panel support member 18 from the lower side, and a vertical plate portion 52 that extends downward from a rear end of the horizontal plate portion 51, and is integrally formed from a metal plate that extends in an inverted L shape in a vehicle side view and has a wide width in the vehicle width direction.

[0084] As shown in Figure 6 , the horizontal plate portion 51 supports the bumper outer panel support member 18 from the lower side, and as shown in Figure 5 , the vertical plate portion 52 engages with the upper portion of the support member 40 (the upper portion of the upper flange portion 41) from the vehicle front side in a manner that sandwiches the front side flange portion 32 of the intermediate bracket 30.

[0085] Next, the outer bracket 20 will be described. The left and right outer brackets 20 are each in a left-right symmetrical shape, and thus the outer bracket 20 that is disposed on the right side of the vehicle will be described here.

[0086] As shown in Figure 7 , Figure 8 (a) and (b), Figure 9 (a) and (b), the outer bracket 20 has a side wall portion 21 that extends in the up-down direction and the front-rear direction, and a eave-shaped flange portion 22 that is formed in a manner that protrudes inward in the vehicle width direction from an upper end of the side wall portion 21 via a corner portion 23 (see Figure 9 (b)), and is formed by bending processing such as press forming of a metal plate.

[0087] As shown in Figure 8 (b), Figure 9 (a), the side wall portion 21 is formed across the entire length of the outer bracket 20 in the vehicle front-rear direction. And as shown in Figure 9 (b), the corner portion 23 makes the angle between the side wall portion 21 and the eave-shaped flange portion 22 approximately 90 degrees.

[0088] And as shown in Figure 6 , Figure 7 (a) and (b), the front portion of the eave-shaped flange portion 22 (the front side horizontal upper edge portion 125 described later) engages with the portion of the bumper outer panel support member 18 on the vehicle width direction outer side from below in a state of abutting against the portion of the bumper outer panel support member 18 on the vehicle width direction outer side from below, via the bolt B6 and the nut N6 (see Figure 7) fastening and fixing.

[0089] Figure 8 The number 220 in (a) indicates a mounting hole formed to penetrate through at a front portion of the eave-shaped flange portion 22 for insertion of a bolt B6.

[0090] As Figure 7 , Figure 8 (a) and (b), in other words, the outer side bracket 20 is provided with a fixing portion 24 that fixes the hood upper member support 17 which is a vehicle body member, a base portion 25 that extends forward from the fixing portion 24, and an inclined portion 26 that is inclined with respect to the base portion 25.

[0091] The fixing portion 24 is located in a region that extends toward the front of the vehicle from the rear end of the outer side bracket 20, and as Figure 7 indicated, is fastened and fixed by a bolt B7 and a nut N7 as a fastening module in a state of abutting from the inner side in the vehicle width direction against a longitudinal wall-shaped inner side in the vehicle width direction portion 17a of the hood upper member support 17.

[0092] Figure 8 The number 240 in (b) indicates a mounting hole formed to penetrate through at positions on each of the upper and lower sides of the fixing portion 24 for insertion of the bolt B7.

[0093] The base portion 25 extends toward the front of the vehicle from the front end of the fixing portion 24. In the present embodiment, as Figure 8 indicated in (a), the fixing portion 24 and the base portion 25 extend in a straight line shape in a plan view and in a direction coinciding with the vehicle front-rear direction in a case where an angle a (first angle a) formed by the fixing portion 24 and the base portion 25 is 180 degrees in the plan view.

[0094] The inclined portion 26 is inclined from the front end of the base portion 25 via a meandering portion 29 (refer to Figure 8 (a) and (b)) in a manner that is located on the outer side in the vehicle width direction more as it goes toward the front. In the present embodiment, as Figure 8 indicated in (a), the meandering portion 29 makes an angle β (second angle β) formed by the base portion 25 and the inclined portion 26 to be approximately 140 degrees.

[0095] As Figure 8 (a) and Figure 9 (a) indicated, the eave-shaped flange portion 22 is formed continuously from a position near the front end of the outer side bracket 20 along the upper end of the side wall portion 21 across the meandering portion 29. The eave-shaped flange portion 22 is formed with substantially the same protruding length across the entire length excluding both the front-rear direction ends.

[0096] On the outer side bracket 20, an edge flange portion 27 is formed in a portion of the edge of the side wall portion 21 other than the rear end and the eave-shaped flange portion 22. The edge flange portion 27 protrudes toward the vehicle width direction inner side like the eave-shaped flange portion 22, but the protruding length is shorter than that of the eave-shaped flange portion 22. That is, the edge flange portion 27 and the eave-shaped flange portion 22 continuously extend along the edge of the side wall portion 21 other than the rear end, and are formed with substantially the same protruding length along the edge of the side wall portion 21.

[0097] Further, as Figure 8 As shown in (b), in the outer side bracket 20, the fixed portion 24 extends horizontally in the vehicle front-rear direction, and, in contrast to the fixed portion 24, a front side portion, that is, a portion across the base portion 25 and the inclined portion 26, extends upward more as it goes forward toward the bumper outer panel support member 18.

[0098] Specifically, a portion of the lower edge 120D of the outer side bracket 20 including the edge flange portion 27, which is across the base portion 25 and the inclined portion 26 in the vehicle front-rear direction, extends linearly and obliquely upward more as it goes forward.

[0099] On the other hand, an upper edge 120U of the outer side bracket 20 including the edge flange portion 27 and the eave-shaped flange portion 22 is formed in steps (two steps in the present embodiment) upward more as it goes forward.

[0100] Specifically, as Figure 8 (a) (b), Figure 9 As shown in (a), (b), in the upper edge 120U of the outer side bracket 20, from the rear end to the front end of the upper edge 120U, a rear side horizontal upper edge portion 121, a rear side inclined upper edge portion 122, an intermediate horizontal upper edge portion 123, a front side inclined upper edge portion 124, and a front side horizontal upper edge portion 125 are formed in this order.

[0101] In the vehicle front-rear direction of the outer side bracket 20, a rear side horizontal upper edge portion 121 is formed from the rear end of the fixed portion 24 to the middle position in the front-rear direction of the base portion 25, and extends substantially horizontally in the front-rear direction. A rear side inclined upper edge portion 122 is formed from the middle position in the front-rear direction of the base portion 25 to the boundary portion of the inclined portion 26 and the base portion 25 of the zigzag portion 29, and extends obliquely upward from the front end of the rear side horizontal upper edge portion 121. A middle horizontal upper edge portion 123 is formed from the zigzag portion 29 to the front end position of the rear portion of the inclined portion 26, and extends substantially horizontally in the front direction from the front end of the rear side inclined upper edge portion 122. A front side inclined upper edge portion 124 is formed from the front end position of the rear portion of the inclined portion 26 to the middle position in the front-rear direction of the inclined portion 26, and extends obliquely upward from the front end of the middle horizontal upper edge portion 123. A front side horizontal upper edge portion 125 is formed from the middle position in the front-rear direction of the inclined portion 26 to the front end of the inclined portion 26, and extends substantially horizontally from the front end of the front side inclined upper edge portion 124.

[0102] Here, as shown in Figure 8 (b), the rear side horizontal upper edge portion 121 is concave downward (is at a low position) with respect to the rear side inclined upper edge portion 122 in the vehicle side view, and therefore the front end portion of this rear side horizontal upper edge portion 121 is set as the rear side concave portion 61r. Similarly, the middle horizontal upper edge portion 123 is concave downward (is at a low position) with respect to the front side inclined upper edge portion 124 in the vehicle side view, and therefore the front end portion of this middle horizontal upper edge portion 123 is set as the front side concave portion 61f.

[0103] As shown in Figure 8 (a) (b), Figure 9 (a), a fragile rib portion 62 is formed in the same position as the front side concave portion 61f in the front-rear direction of the outer side bracket 20. The fragile rib portion 62 is formed in the corner portion 23 (refer to FIG. 2) between the side wall portion 21 and the eave-like flange portion 22 and the peripheral portion thereof, is formed protruding toward the inner corner side of the side wall portion 21 and the eave-like flange portion 22, and extends across the upper end side of the side wall portion 21 and the vehicle width direction outer end side of the eave-like flange portion 22 and transversely to the corner portion 23 extending in the front-rear direction. Figure 9

[0104] That is, the fragile rib portion 62 divides the ridge line extending in the vehicle front-rear direction along the corner portion 23.

[0105] In addition, as shown in Figure 8 (b), Figure 9 (a) (b), high rigidity rib portions 63U, 63D extending in the vehicle front-rear direction are formed in the side wall portion 21. The high rigidity rib portions 63U, 63D are arranged in parallel with each other with a space on each of the upper and lower sides, as shown in Figure 9 (b), and are each formed protruding toward the inner side in the vehicle width direction.​

[0106] The high rigidity rib portions 63U, 63D on the upper and lower sides are each formed continuously in the front-rear direction across the front portion of the base 25 and the rear portion of the inclined portion 26, and pass through the curved portion 29. That is, the curved portion 29 is provided at the same position in the front-rear direction as the high rigidity rib portions 63U, 63D on the upper and lower sides.

[0107] Also, the high rigidity rib portions 63U, 63D on the upper and lower sides each extend in a straight line shape in which the portion of the base 25 and the inclined portion 26 of the lower edge 120D of the outer side bracket 20 is inclined in parallel in a vehicle side view (see FIG. 2). Figure 8 (b).

[0108] The front end 63Df of the high rigidity rib portion 63D on the lower side is located slightly further rearward than the front end 63Uf of the high rigidity rib portion 63U on the upper side, and the rear end 63Dr is located slightly further forward than the rear end 63Ur of the high rigidity rib portion 63U on the upper side. Thus, the high rigidity rib portion 63D on the lower side is slightly shorter in the vehicle front-rear direction than the high rigidity rib portion 63U on the upper side.

[0109] The fragile rib portion 62, the rear side recessed portion 61r, and the front side recessed portion 61f are each a fragile portion that can deform in response to an input load in the front-rear direction input to the outer side bracket 20, and are provided adjacent to the high rigidity rib portions 63U, 63D in the front-rear direction.

[0110] Specifically, as shown in (b), the fragile rib portion 62 and the front side recessed portion 61f are each provided at a position in the front-rear direction that substantially coincides with the front end 63Uf of the high rigidity rib portion 63U on the upper side, and is provided at a position near the front side with respect to the front end 63Df of the high rigidity rib portion 63D on the lower side. Figure 8 (b).

[0111] The rear side recessed portion 61r is provided at a position in the front-rear direction that substantially coincides with the rear end 63Ur of the high rigidity rib portion 63U on the upper side, and is provided at a position near the rear side with respect to the rear end 63Ur of the high rigidity rib portion 63D on the lower side.

[0112] Figure 8 (a) (b), Figure 9 The number 28 in (a) is a seat portion for mounting a wire harness (not shown) or the like that is mounted around the outer side bracket 20, and is formed in a raised manner toward the outside in the vehicle width direction and has a flat seat surface 28a at the outer end in the vehicle width direction.

[0113] Next, the operation of the outer side bracket 20 when a collision object 101 collides with the vehicle from the front (i.e., when a head-on collision occurs) will be described using Figure 10 , Figure 11 (a) (b) explain the operation of the outer side bracket 20 when a collision object 101 collides with the vehicle from the front (i.e., when a head-on collision occurs).

[0114] Figure 10 , Figure 11(a) and (b) are diagrams illustrating a main portion of the left side of the front portion of the vehicle seen in a plan view and results of analyzing the behavior of the front portion of the vehicle at the time of a simulated experiment of a head-on collision, Figure 10 represents the situation at the initial stage of the head-on collision, Figure 11 (a) represents the situation at the middle stage of the head-on collision, Figure 11 (b) represents the situation at the late stage of the head-on collision.

[0115] Figure 10 , Figure 11 (a) and (b) represent the stress distribution of the collision load input to the outer side bracket 20 at the time of the head-on collision on the basis of the density of points, and the portion where the points are denser represents the higher bending stress.

[0116] In addition, Figure 11 In (a) and (b), the illustration of the front side frame 8, the crash can 11, the fixing plate 9, and the like is omitted in order to make the drawings clearer, and in Figure 11 (b), a portion of the shroud member 16 is also made to be broken.

[0117] First, at the time of the head-on collision, the bumper beam 12 receives the colliding object 101 colliding from the front of the vehicle and retreats, with which the crash can 11 collapses in the front-rear direction of the vehicle. At this time, the bumper outer panel support member 18 retreats together with the bumper beam 12, whereby the load is input to the outer side bracket 20 from the front.

[0118] In addition, as shown in Figure 10 , at the initial stage of the head-on collision, the head-on collision load input to the outer side bracket 20 is particularly concentrated in the front-side recessed portion 61f and the fragile rib portion 62 and the rear-side recessed portion 61r.

[0119] As shown in Figure 11 (a), at the middle stage of the head-on collision, the head-on collision load input to the outer side bracket 20 is further concentrated in the front-side recessed portion 61f and the fragile rib portion 62 and the rear-side recessed portion 61r, and the outer side bracket 20 is deformed in a manner that the inclined portion 26 is inclined outward in the vehicle width direction with respect to the fixed portion 24, starting from the above-described front-side recessed portion 61f and the fragile rib portion 62 and the rear-side recessed portion 61r.

[0120] As shown in Figure 11 (b), at the late stage of the head-on collision, also as in Figure 11 (a), the state where the head-on collision load input to the outer side bracket 20 is concentrated in the front-side recessed portion 61f and the fragile rib portion 62 and the rear-side recessed portion 61r is maintained, and the inclined portion 26 is further deformed in a manner that it is inclined outward in the vehicle width direction.

[0121] Thus, the outer side bracket 20 does not abut against the front and rear direction at the time of the head-on collision, but deforms, thereby not obstructing the crushing of the crash can 11 in the front and rear direction, and the absorbability of the head-on collision energy of the front portion of the vehicle body can be ensured.

[0122] Next, using Figure 12 , Figure 13 the movement of the outer side bracket 20 at the time of the head-on collision of the vehicle front portion by the collision object 100 from above will be described.

[0123] Figure 12 , Figure 13 is a view illustrating the results of the simulation experiment analyzing the movement of the vehicle front portion at the time of the head-on collision of the vehicle front portion by the collision object 100 from above, by the oblique cross section along the B-B line of Figure 4 , Figure 12 indicates the state before the collision, Figure 13 indicates the state after the collision.

[0124] Figure 13 In the drawing, the stress distribution of the collision load input to the outer side bracket 20 at the time of the collision is indicated by the density of the dots, and the higher the density of the dots, the higher the bending stress.

[0125] In the vehicle front portion structure of the present embodiment shown in Figure 12 , at the time of the head-on collision of the vehicle front portion by the collision object 100 from above, the collision load is sequentially transmitted to the bumper outer panel upper member 7, the bumper outer panel support member 18, and the outer side bracket 20 in the downward direction (refer to Figure 13 ).

[0126] Then, the collision load input to the outer side bracket 20 is concentrated on the front side recessed portion 61f and the fragile rib portion 62 and the rear side recessed portion 61r as shown in Figure 13 . Thus, the outer side bracket 20 deforms in the downward direction while twisting and the like in the vehicle width direction outward from the above-described portions 62, 61f, 61r as the starting points, thereby being able to reduce the injury value of the collision object 100.

[0127] As shown in Figures 2-6 , the vehicle front portion structure of the present embodiment is characterized by including: a vehicle body member (15, 17) provided at the front portion of the vehicle body; a bumper outer panel support member 18 extending in the vehicle width direction in front of the vehicle body member (15, 17) and having a bumper outer panel mounting hole 18a (mounting portion) on which a bumper outer panel 3 (refer to Figure 1 ) is mounted; a plurality of brackets 20, 30 that link and fix the vehicle body member (15, 17) and the bumper outer panel support member 18; and wherein, of the plurality of brackets 20, 30, the outer side bracket 20 deforms in the downward direction while twisting and the like in the vehicle width direction outward from the above-described portions 62, 61f, 61r as the starting points at the time of the head-on collision of the vehicle front portion by the collision object 100 from above, thereby being able to reduce the injury value of the collision object 100. Figure 5 , Figure 6 , Figure 8 (a), and Figure 9(a) (b) shown, has a tilt portion 26 that tilts more to the outside in the vehicle width direction as it goes forward; a high rigidity portion (63U, 63D) that is at least a part of the tilt portion 26 and has high rigidity with respect to an input load in the front-rear direction; a weak portion (62, 61f, 61r) that is deformable with respect to an input load in the front-rear direction; and the high rigidity portion (63U, 63D) and the weak portion (62, 61f, 61r) are arranged adjacent to each other in the front-rear direction.

[0128] According to the structure, even in a vehicle with a high vehicle height, it is possible to achieve both the support rigidity and assembly accuracy of the bumper outer panel 3 at normal times and the crash stroke of the front portion of the vehicle at the time of a frontal collision.

[0129] In detail, a downward load is input to the bumper outer panel support member 18 at normal times due to the self weight of the bumper outer panel 3, the bumper outer panel support member 18, and the like being pressed by a hand when a person opens and closes the engine hood 2.

[0130] Here, in a vehicle with a high vehicle height, the front end portion of the engine hood is generally at the height of the thigh of a pedestrian, and thus from the viewpoint of mitigating the impact on the knee ligament of a pedestrian at the time of a collision, there are structures in which the front end portion of the engine hood is set back from the frontmost portion of the vehicle, like the vehicle of the present embodiment.

[0131] In addition, in such a vehicle, as the front end portion of the engine hood is set back, the shroud member 16, the shroud upper panel 15, and the like, which are vehicle body members that have a latch as a locking device for the engine hood 2, also set back together with the front end portion of the engine hood.

[0132] In this way, the distance in the front-rear direction between the bumper outer panel support member 18 that supports the bumper outer panel 3 and the vehicle body members (15, 17) such as the shroud upper panel 15 that cantilever supports the bumper outer panel support member 18 from the rear becomes longer. Therefore, particularly in a vehicle with a high vehicle height, when a downward load is input to the bumper outer panel support member 18 as described above, there is concern that the load applied to the brackets 20, 30 that link the bumper outer panel support member 18 and the vehicle body members (15, 17) in the front-rear direction will become large.

[0133] On the other hand, to address the above technical problem, if the outer bracket is structured so as to link the bumper outer panel support member 18 and the vehicle body members such as the shroud upper panel 15 at the shortest distance, at the time of a frontal collision, the outer bracket will come to a stop, and thus there is a new technical problem in that the amount of absorption of the frontal collision energy of the front portion of the vehicle body will be hindered.

[0134] Here, in the present embodiment, by providing the high rigidity portions (63U, 63D) in the outer bracket 20, it is possible to increase the rigidity of the outer bracket 20 at normal times, and thus it is possible to increase the support rigidity and assembly accuracy of the bumper outer panel 3.

[0135] In addition, in the present embodiment, the outer side member 20 has the inclined portion 26 and at least a portion of the high rigidity portion (63U, 63D) is positioned at the inclined portion 26, whereby it is possible to make the high rigidity portion (63U, 63D) easily generate a bending stress against a load from the front at the time of the head-on collision and easily deform starting from the fragile portion (62, 61f, 61r) adjacent to the high rigidity portion (63U, 63D). Thus, by the outer side member 20 being folded and deformed at the time of the head-on collision, it is possible to ensure a collision stroke.

[0136] As shown in Figure 8 (a) (b), as an embodiment of the present application, the outer side member 20 is provided with a base portion 25 extending forward at a first angle a (refer to Figure 9 (a) in a plan view from the fixed portion 24 to a vehicle body member, an inclined portion 26 extending forward at a second angle β from a front end portion of the base portion 25 via a folded portion 29. Figure 8 (a).

[0137] According to the structure, at the time of the head-on collision, by the folded portion 29 allowing the outer side member 20 to be folded and deformed, it is possible to suppress a crushing residual of the outer side member 20.

[0138] As shown in

[0139] According to the structure, even in the high rigidity portion (63U, 63D) in which the yield strength against a bending load is increased, at the time of the head-on collision, it is possible to allow it to be actually folded and deformed starting from the folded portion 29, whereby it is possible to increase an amount of absorption of collision energy of the outer side member 20 at the time of the head-on collision.

[0140] As shown in Figure 8 (a) (b), as an embodiment of the present application, the outer side member 20 is provided with a base portion 25 extending forward at a first angle a (refer to Figure 9 (a) (b) in a plan view from the fixed portion 24 to a vehicle body member, an inclined portion 26 extending forward at a second angle β from a front end portion of the base portion 25 via a folded portion 29. Figure 9 (a).

[0141] According to the structure, by the corner portion 23 (edge line) extending in the front-rear direction increasing the rigidity of the outer side member 20, and by the fragile rib portion 62 dividing the corner portion 23 (edge line) at the time of the head-on collision, it is possible to induce the outer side member 20 to be folded and deformed.

[0142] In addition, the rigidity of the outer side bracket 20 at the normal time is supplemented by the high rigidity portions (63U, 63D) provided at least in the inclined portions 26, and the collapse of the outer side bracket 20 including the high rigidity portions (63U, 63D) is induced at the time of the frontal collision by the provision of the fragile rib portions 62.

[0143] As Figure 8 (a) (b), (c), and (d) show the same embodiment of the present application. Figure 9 As shown in (a), as an embodiment of the present application, the fragile portions are front-side recessed portions 61f and rear-side recessed portions 61r (recessed portions) formed by being recessed downward in a side view at upper edge portions 120U (upper end portions) of the outer side bracket 20.

[0144] According to the structure, the upper edge portions 120U of the outer side bracket 20 form ridge lines along the vehicle width direction at the front-side recessed portions 61f and the rear-side recessed portions 61r, respectively, and thus, when an impact load in the downward direction is input to the bumper outer panel support member 18 (i.e., when a load from above is input to the front portion of the outer side bracket 20), deformation is induced by the front-side recessed portions 61f and the rear-side recessed portions 61r, respectively, in which the front portion is bent downward with respect to the rear portion. Therefore, the pedestrian protection performance can be improved.

[0145] As shown in the drawing, as an embodiment of the present application, the front-side recessed portions 61f (recessed portions) and the fragile rib portions 62 (rib portions) are provided at the same positions in the front-rear direction of the outer side bracket 20.

[0146] According to the structure, the deformation of the outer side bracket 20 in the front-rear direction at the time of the frontal collision can be ensured, and the injury value of the collision object can be reduced by the deformation in the downward direction.

[0147] That is, the fragile rib portions 62 and the front-side recessed portions 61f provided at the same positions in the front-rear direction cooperate with each other, and the deformation of the outer side bracket 20 in the front-rear direction at the time of the frontal collision can be more reliably induced.

[0148] Similarly, the fragile rib portions 62 and the front-side recessed portions 61f provided at the same positions in the front-rear direction cooperate with each other, and the deformation of the outer side bracket 20 in the downward direction when an impact load in the downward direction is input to the bumper outer panel support member 18 can be induced, and the effect of reducing the injury value of the collision object (pedestrian protection performance) can be improved.

[0149] Therefore, according to the structure, the deformation of the outer side bracket 20 in the front-rear direction at the time of the frontal collision can be ensured, and the injury value of the collision object can be reduced by the deformation in the downward direction.

[0150] As Figure 8As shown in (b), as an embodiment of the present invention, the front recess 61f and the front end 63Uf of the upper high-rigidity rib 63U are provided at the same position in the front-to-back direction of the outer bracket 20, and the rear recess 61r and the rear end 63Ur of the upper high-rigidity rib 63U are provided at the same position in the front-to-back direction of the outer bracket 20.

[0151] The front and rear ends of the high-rigidity portions (63U, 63D) correspond to the boundaries between locations where the high-rigidity portions (63U, 63D) are provided and locations where they are not provided, in the front-to-back direction of the outer bracket 20. Therefore, the outer bracket 20 is provided with the front recessed portions 61f and the rear recessed portions 61r at or near locations with such a difference in rigidity in the front-to-back direction, thereby inducing deformation in response to frontal collision loads or downward loads at these locations.

[0152] Therefore, the outer bracket 20 can further secure a collision stroke by deforming in the front-to-back direction during a frontal collision, and can reduce the damage value of the collision object by deforming downward (pedestrian protection performance).

[0153] The present invention is not limited to the configuration of the above-described embodiment, and can be implemented in various forms.

[0154] The inclined portion of the present invention is not limited to being inclined outward in the vehicle width direction as it moves forward, as in the inclined portion 26 of the present embodiment, but may be inclined inward in the vehicle width direction. Furthermore, the inclined portion of the present invention may be inclined to different sides in the vehicle width direction on the inner and outer sides of the outer brackets on either side.

[0155] In addition, in this embodiment, Figure 8 As shown in (a), the first angle α is set to 180 degrees, but the present invention is not limited to this configuration. Similar to the inclined portion 26, the base portion 25 may also be inclined toward the vehicle width direction inner or outer sides with respect to the fixing portion 24 as it moves forward.

[0156] In addition, the concave portion as the fragile portion provided by the present invention is not limited to the concave portion (61f, 61r) of the present embodiment, in which the rear portion of the concave forming location is lower than the front portion in the front-to-back direction of the upper end portion of the bracket. It can also be: the front portion of the concave forming location of the upper end portion of the bracket is lower than the rear portion, or it can be formed into a concave shape so that the concave forming location is lower than both the rear portion and the front portion of the concave forming location.

[0157] In addition, in the present application, the position where the fragile rib 62 and the front-side recessed portion 61f are located substantially in line in the front-rear direction is not limited to the front end 63Uf of the upper high rigidity rib 63U as in the present embodiment, but can be the front end 63Df of the lower high rigidity rib 63D, and similarly, the position where the rear-side recessed portion 61r and the rear end 63Ur of the upper high rigidity rib 63U are located substantially in line in the front-rear direction is not limited to the rear end 63Ur of the upper high rigidity rib 63U, but can be the rear end 63Dr of the lower high rigidity rib 63D.

[0158] Number Explanation

[0159] 3 bumper outer panel

[0160] 17 shroud upper piece support bracket (body member)

[0161] 18 bumper outer panel support member

[0162] 20 outer side bracket (bracket)

[0163] 21 side wall portion

[0164] 22 eave-shaped flange portion (flange portion)

[0165] 23 corner portion

[0166] 24 fixed portion

[0167] 25 base portion

[0168] 26 inclined portion

[0169] 29 curved portion

[0170] 61f front-side recessed portion (recessed portion, fragile portion)

[0171] 61r rear-side recessed portion (recessed portion, fragile portion)

[0172] 62 fragile rib portion (rib portion, fragile portion)

[0173] 63U upper high rigidity rib portion (high rigidity portion)

[0174] 63D lower high rigidity rib portion (high rigidity portion)

[0175] 63Uf front end of upper high rigidity rib portion

[0176] 63Ur rear end of upper high rigidity rib portion

[0177] 120U upper edge of outer side bracket (upper end portion of bracket)

[0178] α first angle

[0179] β second angle

Claims

1. A front structure of a vehicle, characterized in that have: A body member located at the front of the vehicle body; a bumper outer panel support member extending in the vehicle width direction in front of the vehicle body member and having a mounting portion for mounting the bumper outer panel; A plurality of brackets connecting and fixing the vehicle body member and the bumper outer panel support member; wherein, The bracket has: A sloping portion that slopes more inward or outward in the vehicle width direction as it moves forward; A high-rigidity portion at least partially located in the inclined portion and having high rigidity with respect to an input load in the front-rear direction; A fragile portion that can deform in response to input loads in the front-back direction; The high-rigidity portion and the fragile portion are adjacently arranged in the front-to-back direction; The bracket includes a base portion extending forward at a first angle from a fixing portion to the vehicle body member in a plan view; The inclined portion extends forward at a second angle from the front end portion of the base portion via the bent portion.

2. The front structure of a vehicle according to claim 1, characterized in that: The bent portion and the high-rigidity portion are provided at the same position in the front-rear direction.

3. The front structure of a vehicle according to claim 1 or 2, characterized in that: The bracket includes a side wall portion extending in the vertical direction and the front-rear direction and a flange portion bent from the upper end of the side wall portion through the corner portion. The fragile portion is a rib provided at the corner portion.

4. The front structure of a vehicle according to claim 3, characterized in that: The high-rigidity portion is a rib portion formed on the side wall portion and extending in the vehicle front-rear direction.

5. The front structure of a vehicle according to claim 4, characterized in that: The high-rigidity portions are arranged parallel to each other at intervals on the upper and lower sides, and are all formed to protrude inward in the vehicle width direction.

6. The front structure of a vehicle according to claim 3, characterized in that: The fragile portion is a recessed portion formed at the upper end portion of the bracket and recessed downward in a side view.

7. The front structure of a vehicle according to claim 6, characterized in that: The recessed portion and the rib portion are provided at the same position in the front-rear direction of the bracket.

8. The front structure of a vehicle according to claim 6, characterized in that: At least one of the front end portion and the rear end portion of the high-rigidity portion is provided at the same position as the recessed portion in the front-rear direction.

9. The front structure of a vehicle according to claim 7, characterized in that: At least one of the front end portion and the rear end portion of the high-rigidity portion is provided at the same position as the recessed portion in the front-rear direction.

Images