Front part structure for vehicle

Abstract

To provide a front part structure for a vehicle that is able to properly transmit a collision load, applied to a bumper reinforcement, to a crash box while omitting joining of a front end of the crash box to the bumper reinforcement.SOLUTION: A front part structure 30 includes: a support member 40 located between a pair of crash boxes 20; and a bumper reinforcement 60 located in front of the pair of crash boxes and extending in a vehicle width direction W. The support member has: a body portion 41 located between the pair of crash boxes; an attachment portion attached to the bumper reinforcement; and a fixing portion extending from the body portion and fixed to a vehicle body frame. The support member has a pair of extension portions 50 respectively extending from the body portion toward the front sides of the openings 22 of the pair of crash boxes. Each extension portion has a fittable portion 54 projecting backward and fitted in the opening.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a front structure of a vehicle. [Background technology]

[0002] Patent Document 1 describes a front structure of a vehicle. The front structure of the vehicle described in Patent Document 1 includes a pair of front side members located on both sides in the vehicle width direction, and a pair of crash boxes respectively connected to the front ends of the pair of front side members. The front structure of the vehicle also includes a radiator support that supports a radiator between the pair of crash boxes, and a bumper reinforcement that is located in front of the radiator support and the crash boxes and extends in the vehicle width direction.

[0003] The front ends of the pair of crash boxes are joined to the bumper reinforcement. The radiator support includes a resin radiator support upper that is integrally formed with an upper body and a pair of side sections. The pair of side sections are attached to a pair of crash boxes with fastening members. The upper body and bumper reinforcement are connected via a pair of braces. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-137089 Summary of the Invention [Problem to be solved by the invention]

[0005] The vehicle front structure described in Patent Document 1 has a problem in that it requires time and effort to join the front ends of the crash boxes to the bumper reinforcement. In contrast, if the joint between the front end of the crash box and the bumper reinforcement is omitted, relative displacement between the bumper reinforcement and the crash box is permitted, which causes another problem in that the collision load applied to the bumper reinforcement is not properly transmitted to the crash box. [Means for solving the problem]

[0006] Various aspects of the vehicle front structure for solving the above problems will be described. [Aspect 1] a bumper reinforcement positioned in front of the pair of crash boxes and extending in the vehicle width direction, wherein the support member has a main body portion positioned between the pair of crash boxes, a mounting portion attached to the bumper reinforcement, a fixing portion extending from the main body portion and fixed to the body frame, and a pair of extending portions extending from the main body portion toward the front of the openings of the pair of crash boxes, wherein the extending portions have fitting portions that protrude rearward and are fitted into the openings.

[0007] According to the above configuration, the mounting portion of the support member is attached to the bumper reinforcement to form a front structure including the support member and the bumper reinforcement. When the front structure is attached to the vehicle structure, the fitting portions of the pair of extension portions of the support member are fitted into the openings of the pair of crash boxes, respectively. Furthermore, the fixing portions of the support member are fixed to the body frame, thereby fixing the front structure to the vehicle structure. This restricts relative displacement of the support member with respect to the pair of crash boxes, i.e., relative displacement of the bumper reinforcement.

[0008] In this way, with the above configuration, it is possible to appropriately transmit the collision load applied to the bumper reinforcement to the crash box while omitting the joining between the front end of the crash box and the bumper reinforcement.

[0009] [Aspect 2] A front structure of a vehicle as described in [Aspect 1], wherein a plurality of openings are formed at the front end of the crash box, and the extension portion has a plurality of fitting portions that fit into the plurality of openings, respectively.

[0010] According to the above configuration, the relative movement between the crash box and the bumper reinforcement is restricted at multiple locations on the front end of the crash box, thereby allowing the collision load applied to the bumper reinforcement to be more appropriately transmitted to the crash box.

[0011] [Aspect 3] The vehicle front structure according to [Aspect 1] or [Aspect 2], wherein the extension portion has a flat portion that is sandwiched between the edge of the opening and the bumper reinforcement.

[0012] According to the above configuration, the rear surface of the bumper reinforcement comes into surface contact with the flat portions of the extensions, and the edges of the openings of the crash boxes come into surface contact with the flat portions of the extensions, thereby more appropriately transmitting the collision load applied to the bumper reinforcement to the crash boxes.

[0013] [Aspect 4] A front structure of a vehicle according to [Aspect 3], wherein the flat portion is provided around the entire periphery of the opening.

[0014] According to the above configuration, when a collision load is applied to the bumper reinforcement, the entire edge of the opening is pressed by the flat portion. This prevents the collision load from being transmitted unevenly from the bumper reinforcement depending on the position of the front end of the crash box. This allows the collision load applied to the bumper reinforcement to be transmitted to the crash box more appropriately.

[0015] [Aspect 5] A front structure of a vehicle as described in [Aspect 3] or [Aspect 4], in which the extension portion has a protrusion that protrudes forward or rearward, closer to the base end of the extension portion than the fitting portion.

[0016] When a collision load acts on the extension portion through the bumper reinforcement, stress tends to concentrate on the base end portion of the extension portion. In this regard, according to the above-described configuration, the protrusion is provided at the base end portion of the extension portion, thereby increasing the rigidity of the base end portion of the extension portion. This makes it possible to suppress deformation of the extension portion. Therefore, it is possible to more appropriately transmit the collision load applied to the bumper reinforcement to the crash box.

[0017] [Aspect 6] The vehicle front structure according to [Aspect 5], wherein the protrusion protrudes rearward, and the edge of the opening is sandwiched between the fitting portion and the protrusion.

[0018] According to this configuration, since the protruding portion protrudes rearward, the protruding portion can be provided without interfering with the bumper reinforcement. Furthermore, with the above configuration, the edge of the opening is sandwiched between the fitting portion and the protruding portion, which restricts relative displacement between the extension portion and the crash box, thereby increasing the rigidity of the extension portion and more appropriately transmitting the collision load applied to the bumper reinforcement to the crash box. [Effects of the Invention]

[0019] According to the present invention, a collision load applied to the bumper reinforcement can be appropriately transmitted to the crash box while omitting the joining between the front end of the crash box and the bumper reinforcement. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is an exploded perspective view showing a vehicle structure and a front structure of a vehicle according to one embodiment. [Figure 2] FIG. 2 is an enlarged rear view of the front structure of FIG. 1, focusing on the extended portion. [Figure 3] FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, an embodiment of a vehicle front structure will be described with reference to FIGS. As shown in FIG. 1, a vehicle structure 10 and a front structure 30 assembled to the vehicle structure 10 are provided at the front of the vehicle.

[0022] In the following description, the longitudinal direction of the vehicle will be referred to as the longitudinal direction L, the width direction of the vehicle as the width direction W, and the vertical direction of the vehicle when the vehicle is positioned on a horizontal plane as the vertical direction Z. Furthermore, the front and rear in the longitudinal direction L will be simply referred to as the "front" and "rear", respectively.

[0023] The front part of the vehicle in this embodiment has a symmetrical structure in the vehicle width direction W. Therefore, hereinafter, only the left half of the front part of the vehicle when viewed from the front to the rear will be described, and a description of the right half may be omitted.

[0024] <Vehicle structure 10> As shown in FIG. 1, the vehicle structure 10 includes a pair of front side members 11 spaced apart from each other in the vehicle width direction W, and a pair of crash boxes 20 located in front of the pair of front side members 11.

[0025] The vehicle structure 10 is made of metal. (Front side member 11) The front side members 11 are cylindrical and extend in the front-rear direction L, and constitute a part of a pair of body frames that constitute the vehicle structural body 10 on both sides in the vehicle width direction W.

[0026] A side-member-side flange portion 12 having a rectangular annular shape in front view and projecting radially outward from the front side member 11 is provided at the front end of the front side member 11 . At four corners of the side-member-side flange portion 12, through-holes 12a are provided that penetrate the side-member-side flange portion 12 in the front-rear direction L.

[0027] (Crash Box 20) As shown in FIG. 1, the crash box 20 has a cylindrical portion 21 extending in the front-rear direction L, and a crash box side flange portion 25 protruding from the rear end of the cylindrical portion 21 radially outward.

[0028] The cylindrical portion 21 is provided with a central hole 21a. Inside the central hole 21a, there are provided a plate-shaped first reinforcing portion 23 that divides the central hole 21a into two in the up-down direction Z, and a plate-shaped second reinforcing portion 24 that intersects the first reinforcing portion 23 and divides the central hole 21a into two in the vehicle width direction W. That is, the first reinforcing portion 23 and the second reinforcing portion 24 divide the central hole 21a into four through holes. Furthermore, the front end of the first reinforcing portion 23 and the front end of the second reinforcing portion 24 divide the opening portion of the central hole 21a into four, so that four openings 22 are formed in the front end of the tubular portion 21.

[0029] The crash box side flange portion 25 has a rectangular annular shape when viewed from behind. At four corners of the crash box side flange portion 25, through holes 25a are provided that penetrate the crash box side flange portion 25 in the front-rear direction L.

[0030] The crash box 20 is fixed to the front end of the front side member 11 by threading nuts 71 onto bolts 70 inserted through the through holes 12a and 25a. <Front structure 30> As shown in FIG. 1, the front structure 30 includes a support member 40 located between the pair of crash boxes 20, and a bumper reinforcement 60 located in front of the pair of crash boxes 20 and extending in the vehicle width direction W.

[0031] (Support member 40) As shown in FIG. 1, the support member 40 has a main body portion 41 positioned between a pair of crash boxes 20, a fixing portion 45 extending from the main body portion 41, a pair of extension portions 50 extending from the main body portion 41, and a pair of mounting portions 58.

[0032] (Main body 41) As shown in Figure 1, the main body 41 has an upper wall 42 extending in the vehicle width direction W, a pair of side wall 43 extending downward from both ends of the upper wall 42 in the vehicle width direction W, and a pair of inclined portions 44 extending from the lower ends of the pair of side wall 43 toward the central portion of the upper wall 42.

[0033] At both ends of the upper wall portion 42 in the vehicle width direction W, through-holes 42a that penetrate the upper wall portion 42 in the front-rear direction L are provided. The inclined portion 44 is inclined so that the closer to the center of the upper wall portion 42 in the vehicle width direction W, the higher it is positioned.

[0034] (Fixed part 45) The fixing portion 45 is located rearward of the main body portion 41 and is fixed to the main body portion 41 and to a portion (not shown) of a pair of body frames that constitute the vehicle structure 10 that is located above the front end of the front side member 11.

[0035] The fixing portion 45 has a front end portion extending in the fore-and-aft direction L, a central portion extending at an angle from the rear end of the front end portion so as to be positioned rearward toward the outside in the vehicle width direction W, and a rear end portion extending in the fore-and-aft direction L from the rear end of the central portion.

[0036] A first through-hole 45a is provided at the front end portion of the fixing portion 45, penetrating the front end portion of the fixing portion 45 in the front-rear direction L. A nut 73 is threadedly engaged with a bolt 72 inserted through the through-hole 42a and the first through-hole 45a, thereby fixing the fixing portion 45 to the upper wall portion 42.

[0037] A second through-hole 45b is provided at the rear end portion of the fixing portion 45, penetrating the rear end portion of the fixing portion 45 in the up-down direction Z. A bolt (not shown) is inserted into the second through-hole 45b, whereby the fixing portion 45 is fixed to a portion (not shown) of the pair of body frames constituting the vehicle structural body 10 that is located above the front ends of the front side members 11.

[0038] (Extension part 50) As shown in FIG. 1, the extension portion 50 extends from the main body portion 41 toward the front of the openings 22 of the pair of crash boxes 20.

[0039] The extension portion 50 has a flat portion 53 extending outward in the vehicle width direction W from the lower end of the side wall portion 43, and a fitting portion 54 protruding rearward from the flat portion 53. As shown in FIGS. 2 and 3, the flat portion 53 has a generally rectangular plate shape when viewed from the front.

[0040] The base end 50a of the flat portion 53 and the side wall portion 43 are connected via a step portion 43a. 3 and 4, the flat portion 53 abuts against the edge portion 22a of the opening portion 22 of the crash box 20. In this embodiment, the flat portion 53 abuts against the entire periphery of the edge portion 22a of the multiple opening portions 22.

[0041] 2 and 3, a protruding portion 55 that protrudes rearward from the flat portion 53 is provided at the base end 50a of the flat portion 53. The protruding portion 55 extends in the vehicle width direction W and is hollow and open to the front.

[0042] The inner end of the protrusion 55 in the vehicle width direction W is continuous with the step portion 43a. The outer ends of the protrusions 55 in the vehicle width direction W are inclined so that the outer ends in the vehicle width direction W are positioned further forward.

[0043] In this embodiment, two protrusions 55 are provided at an interval in the vertical direction Z. The fitting portions 54 are provided at positions corresponding to the openings 22 of the crash box 20 and are fitted into the openings 22. In this embodiment, four fitting portions 54 are provided at positions corresponding to the four openings 22 and are fitted into the four openings 22, respectively. The entire fitting portions 54 are inserted into the center hole 21a.

[0044] The fitting portion 54 is located outside the protruding portion 55 in the vehicle width direction W. In this embodiment, the fitting portions 54 are in the shape of a truncated quadrangular pyramid and are hollow and open to the front. The four fitting portions 54 have the same shape.

[0045] The fitting portion 54 protrudes rearward from the flat portion 53 and has four trapezoidal side walls 54a that are inclined so that the more rearward the portion is positioned toward the center of the opening 22, and one rectangular top wall 54b that is connected to the rear ends of the four side walls 54a.

[0046] The fitting portion 54 and the protruding portion 55 sandwich the portion of the edge portion 22a of the opening 22 that is formed by the peripheral wall of the cylindrical portion 21. The portion of the edge 22a of the opening 22 that is formed by the edge of the second reinforcing portion 24 is sandwiched between two fitting portions 54 that are arranged adjacent to each other in the vehicle width direction W.

[0047] As shown in Figures 2 and 4, two fitting portions 54 arranged adjacent to each other in the front-rear direction L sandwich a portion of the edge portion 22a of the opening 22 that is formed by the edge portion of the first reinforcing portion 23.

[0048] A protrusion 59 protruding rearward is provided on the periphery of the flat portion 53. The protrusion 59 extends so as to surround the four fitting portions . (Mounting part 58) As shown in FIGS. 1 and 4, the attachment portion 58 protrudes forward from the upper edge of the flat portion 53 and is plate-shaped.

[0049] The mounting portion 58 is provided with a plurality of through holes 58a that penetrate the mounting portion 58 in the up-down direction Z. In this embodiment, two through holes 58a are provided spaced apart from each other in the vehicle width direction W.

[0050] The main body 41, the pair of extension portions 50, and the pair of mounting portions 58 are made of fiber reinforced resin. The reinforcing fibers contained in the fiber reinforced resin are, for example, glass fibers. The main body 41, the pair of extension portions 50, and the pair of attachment portions 58 are integrally formed by injection molding.

[0051] (Bumper Reinforcement 60) As shown in FIGS. 1 and 4, the bumper reinforcement 60 is cylindrical. The bumper reinforcement 60 has through holes 60 a that penetrate the bumper reinforcement 60 in the up-down direction Z, at positions corresponding to the through holes 58 a of the attachment portions 58 .

[0052] The bumper reinforcement 60 is fixed to the mounting portion 58 by threading nuts 75 onto bolts 74 inserted through the through holes 58a and 60a. 3 and 4 , the rear surface 60b of the bumper reinforcement 60 abuts against the front surface 53b of the flat portion 53, and holds the flat portion 53 between itself and the edge portion 22a of the opening 22 of the crash box 20. In this embodiment, the rear surface 60b of the bumper reinforcement 60 holds the flat portion 53 between itself and the entire periphery of the edge portion 22a of the multiple openings 22. In addition, the rear surface 60b of the bumper reinforcement 60 abuts against the entire front surface 53b of the flat portion 53.

[0053] <Operation of this embodiment> As shown in FIG. 1, the mounting portion 58 of the support member 40 is attached to the bumper reinforcement 60, thereby forming a front structure 30 including the support member 40 and the bumper reinforcement 60. Then, as shown in FIGS. 3 and 4, when the front structure 30 is attached to the vehicle structure 10, the multiple fitting portions 54 of the pair of extension portions 50 are fitted into the multiple openings 22 of the pair of crash boxes 20, respectively. Also, as shown in FIG. 1, the fixing portion 45 of the support member 40 is fixed to a portion of the body frame (not shown), thereby fixing the front structure 30 to the vehicle structure 10. This restricts the relative displacement of the support member 40 with respect to the pair of crash boxes 20, i.e., the relative displacement of the bumper reinforcement 60.

[0054] <Effects of this embodiment> (1) The support member 40 has a main body portion 41 located between the pair of crash boxes 20, a mounting portion 58 attached to the bumper reinforcement 60, and a fixing portion 45 extending from the main body portion 41 and fixed to a portion of the vehicle body frame (not shown). The support member 40 also has a pair of extending portions 50 each extending from the main body portion 41 toward the front of the openings 22 of the pair of crash boxes 20. The extending portions 50 have fitting portions 54 that protrude rearward from flat portions 53 and are fitted into the openings 22.

[0055] With this configuration, the above-mentioned effect is achieved, and the collision load applied to the bumper reinforcement 60 can be appropriately transmitted to the crash box 20 while omitting the joining between the front end of the crash box 20 and the bumper reinforcement 60.

[0056] (2) A plurality of openings 22 are formed at the front end of the crash box 20. The extension portion 50 has a plurality of fitting portions 54 that fit into the plurality of openings 22, respectively. With this configuration, the relative movement between the crash box 20 and the bumper reinforcement 60 is restricted at multiple locations on the front end of the crash box 20. This allows the collision load applied to the bumper reinforcement 60 to be transmitted to the crash box 20 more appropriately.

[0057] (3) The extension portion 50 has a flat portion 53 that is sandwiched between the edge portion 22 a of the opening 22 and the bumper reinforcement 60 . With this configuration, the rear surface 60b of the bumper reinforcement 60 and the flat portion 53 of the extending portion 50 are in surface contact, and the edge portion 22a of the opening 22 of the crash box 20 and the flat portion 53 of the extending portion 50 are in surface contact. This makes it possible to more appropriately transmit the collision load applied to the bumper reinforcement 60 to the crash box 20.

[0058] (4) The flat portion 53 is provided around the entire periphery of the opening 22 . With this configuration, when a collision load is applied to the bumper reinforcement 60, the entire edge 22a of the opening 22 is pressed by the flat portion 53. This makes it possible to prevent the collision load transmitted from the bumper reinforcement 60 from being biased depending on the position of the front end of the crash box 20. Therefore, the collision load applied to the bumper reinforcement 60 can be transmitted to the crash box 20 more appropriately.

[0059] (5) The extending portion 50 is provided with the protruding portion 55 that protrudes rearward and is located closer to the base end 50a of the extending portion 50 than the fitting portion 54. When a collision load acts on the extension portion 50 via the bumper reinforcement 60, stress tends to concentrate on the base end 50a of the extension portion 50.

[0060] In this regard, according to the above configuration, the protrusion 55 is provided on the portion of the extension 50 on the base end 50a side, thereby increasing the rigidity of the base end 50a portion of the extension 50. This makes it possible to suppress deformation of the extension 50. Therefore, the collision load applied to the bumper reinforcement 60 can be more appropriately transmitted to the crash box 20.

[0061] (6) The edge 22 a of the opening 22 is sandwiched between the fitting portion 54 and the protruding portion 55 . According to this configuration, since the protruding portion 55 protrudes rearward, the protruding portion 55 can be provided without interfering with the bumper reinforcement 60.

[0062] Furthermore, with the above configuration, the edge 22a of the opening 22 is sandwiched between the fitting portion 54 and the protruding portion 55, thereby restricting relative displacement between the extension portion 50 and the crash box 20. This increases the rigidity of the extension portion 50 and makes it possible to more appropriately transmit the collision load applied to the bumper reinforcement 60 to the crash box 20.

[0063] <Example of change> This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

[0064] In the above embodiment, two protrusions 55 are provided on the portion of the extension portion 50 closer to the base end 50a of the extension portion 50 than the fitting portion 54, but the number of protrusions 55 may be one, or three or more.

[0065] By adjusting the position of the protrusion 59 and the inclination with respect to the front-rear direction L, the fitting portion 54 and the protrusion 59 may sandwich the edge portion 22a of the opening 22. In the above embodiment, the pair of extension portions 50, the pair of mounting portions 58, and the main body portion 41 are formed from fiber-reinforced resin, but the pair of extension portions 50, the pair of mounting portions 58, and the main body portion 41 may also be formed from metal.

[0066] In the above embodiment, the edge 22a of the opening 22 is sandwiched between the fitting portion 54 and the protrusion 55, but the outer end of the protrusion 55 in the vehicle width direction W does not have to be adjacent to the edge 22a of the opening 22.

[0067] The multiple fitting portions 54 may have different shapes. In the above embodiment, the protruding portion 55 protrudes rearward, but as long as there is no interference with the bumper reinforcement 60, the protruding portion 55 may protrude forward.

[0068] If the extension portion 50 is not easily deformed by a collision load acting on the base end 50a of the extension portion 50, the protrusion 55 may be omitted. In the above embodiment, the flat portion 53 is sandwiched between the edge portion 22a of the opening 22 and the bumper reinforcement 60 over the entire periphery of the opening 22, but this is not limitative. The flat portion 53 may be sandwiched only between a part of the edge portion 22a of the opening 22 and the bumper reinforcement 60.

[0069] If the fitting portion 54 is fitted into the opening 22 of the crash box 20, a gap may be formed in the front-to-rear direction L between the edge 22a of the opening 22 and the flat portion 53 when the edge 22a of the opening 22 and the side wall 54a of the fitting portion 54 are in contact with each other.

[0070] In the above embodiment, four openings 22 are provided at the front end of the crash box 20, but the number of openings 22 may be one, two, three, five or more. In this case, the number of fitting portions 54 only needs to be at least one, and may be the same as or less than the number of openings 22.

[0071] In the above embodiment, the attachment portion 58 is provided on the extension portion 50, but the attachment portion 58 may also be provided on the main body portion 41. In the above embodiment, the pair of extension portions 50, the pair of mounting portions 58, and the main body portion 41 are integrally molded by injection molding, but the pair of extension portions 50, the pair of mounting portions 58, and the main body portion 41 may each be formed as separate bodies.

[0072] The opening 22 may be formed at the front end of the crash box 20 by providing a hole that opens forward at the front end of the crash box 20. [Explanation of symbols]

[0073] 10...Vehicle structure 11...Front side member 12...Side member flange 12a...Through hole 20...Crash box 21...Cylindrical part 21a...Center hole 22...Opening 22a...Edge 23...First reinforcement part 24...Second reinforcement section 25...Flange on the crash box side 25a...Through hole 30…Front structure 40...Support member 41...Main body 42...Top wall part 42a...Through hole 43...Side wall 43a...Step 44…Slope part 45…Fixed part 45a...1st through hole 45b…Second through hole 50...Extension part 50a...Proximal end 53...Flat area 53b…Front 54...Mating part 54a…Side wall 54b…Top wall 55...Protruding part 58...Mounting part 58a...Through hole 59...protrusion 60...Bumper reinforcement 60a...Through hole 60b…Rear side 70...volts 71...Nat 72...volts 73...Nat 74...volts 75...Nut

Claims

1. A vehicle front structure is applied to a vehicle structure including a pair of body frames arranged at an interval in the vehicle width direction, and a pair of crash boxes located forward of the pair of body frames in the vehicle longitudinal direction and attached to the pair of body frames, with openings formed at front ends of the crash boxes, and is assembled to the vehicle structure, When the front and rear in the longitudinal direction of the vehicle are defined as the front and rear, respectively, a support member positioned between the pair of crash boxes; a bumper reinforcement positioned in front of the pair of crash boxes and extending in the vehicle width direction, The support member is a main body portion located between the pair of crash boxes; a mounting portion attached to the bumper reinforcement; a fixing portion extending from the main body portion and fixed to the vehicle body frame; a pair of extension portions each extending from the main body portion toward the front of the openings of the pair of crash boxes, The extension portion has a fitting portion that protrudes rearward and is fitted into the opening. The front structure of the vehicle.

2. A plurality of the openings are formed at the front end of the crash box, The extension portion has a plurality of fitting portions that are fitted into the plurality of openings, respectively. The front structure of a vehicle according to claim 1.

3. The extension portion has a flat portion that is sandwiched between an edge portion of the opening and the bumper reinforcement. The vehicle front structure according to claim 1 or 2.

4. The flat portion is provided around the entire periphery of the opening. The front structure of a vehicle according to claim 3.

5. The extension portion is provided with a protruding portion that protrudes forward or rearward and is located closer to the base end of the extension portion than the fitting portion. The front structure of a vehicle according to claim 3.

6. The protrusion protrudes rearward, The edge of the opening is sandwiched between the fitting portion and the protruding portion. The front structure of a vehicle according to claim 5.

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