JP2007190961A - Vehicle body front part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent deformation of a portion of a vehicle front side member posterior to its inclined part caused in vehicle frontal collision while restraining an increase of weight. <P>SOLUTION: A rear end 14D of the inclined part 14B of the front side member 14 is connected to a lower cross member 16, and both end parts 16A in the vehicle widthwise direction of the lower cross member 16 are connected to left and right lockers 20. An additional cross member 26 is arranged with a specified interval on the vehicle rear side of the lower cross member 16 with its longitudinal direction along the vehicle widthwise direction, and a vehicle widthwise direction outside reinforcement 34 is arranged on a portion between the lower cross member 16 and the additional cross member 26 to be on an extension toward the vehicle rear side of the inclined part 14B of the front side member 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle body front part structure of an automobile, and more particularly to a vehicle body front part structure having a front side member in which an inclined part inclined from a vehicle front upper side to a vehicle rear lower side is formed on a vehicle rear side.

2. Description of the Related Art Conventionally, a vehicle body front structure that axially deforms a front portion of a front side member in preparation for a frontal collision of a vehicle is known (see, for example, Patent Document 1). In this technique, the inclined part (kick part) of the front side member and the center part in the vehicle width direction of the cross member disposed on the vehicle rear side of the inclined part are connected by the left and right reinforcing members, respectively.
JP 2005-41247 A

  However, in the vehicle body front part structure disclosed in Patent Document 1, a front portion of a front side member to which a load is input at the time of a frontal collision of the vehicle (vehicle front collision) and a portion on the vehicle rear side with respect to the inclined portion of the front side member are arranged. A step is formed in the vehicle vertical direction. As a result, at the time of a frontal collision of the vehicle, each part along the longitudinal direction of the front side member receives an axial force along the axial direction and a moment upward of the vehicle starting from the rear end portion of the front side member. For this reason, reinforcement that can withstand the axial force and moment generated at the time of the vehicle front-end collision, for example, a reinforcement plate, is required even at a position on the rear side of the vehicle from the inclined portion of the front side member, which increases the weight.

  In view of the above facts, an object of the present invention is to provide a vehicle body front portion structure that can prevent deformation of a vehicle rear side portion from an inclined portion of a front side member that occurs at the time of a vehicle front collision while suppressing an increase in weight. .

  The vehicle body front part structure according to the first aspect of the present invention is arranged on both sides of the vehicle body front part along the longitudinal direction of the vehicle, and is inclined at the vehicle rear end part from the vehicle front upper side to the vehicle rear lower side. A front side member in which the inclined portion is formed, a rocker whose longitudinal direction is arranged along the vehicle longitudinal direction outside the inclined portion of the front side member in the vehicle width direction, and the longitudinal direction is arranged along the vehicle width direction In addition, both ends in the vehicle width direction are coupled to the left and right rockers, and a cross member having a rear end of the front side member coupled to a middle portion in the longitudinal direction is provided.

  The load input to the front end of the front side member at the time of the front collision of the vehicle starts from the rear end of the inclined portion inclined from the vehicle front upper side toward the vehicle rear lower side at the vehicle rear end portion of the front side member. Is input to the intermediate portion of the cross member in the longitudinal direction, the both ends of the cross member in the vehicle width direction are coupled, and the longitudinal direction is disposed along the vehicle front-rear direction on the outer side in the vehicle width direction of the inclined portion of the front side member. Transmitted to the rocker. At this time, a step in the vertical direction of the vehicle is formed between the front portion of the front side member to which a load is input at the time of a vehicle front collision and the rear end of the inclined portion of the front side member. As a result, at the time of the frontal collision of the vehicle, each part along the longitudinal direction of the front side member receives an axial force along the axial direction and a moment upward of the vehicle starting from the rear end of the inclined part. Since the rear end of the portion is the starting point of the moment, no moment is generated in the rear portion of the vehicle from the inclined portion of the front side member. For this reason, in the part of the front side member on the rear side of the inclined portion of the vehicle, deformation can be prevented by reinforcing the axial force generated at the time of the vehicle front collision, and there is no need to perform the reinforcing to withstand the moment.

  According to a second aspect of the present invention, in the vehicle body front portion structure according to the first aspect, the longitudinal direction is arranged along the vehicle width direction on the vehicle rear side of the cross member, and both end portions in the vehicle width direction are the left and right rockers. A cross member auxiliary member coupled to the cross member; and a reinforcing member that connects the cross member and the cross member auxiliary member.

  Left and right rockers, a cross member whose longitudinal direction is arranged along the vehicle width direction and both ends in the vehicle width direction are coupled to the left and right rockers, and a longitudinal direction is arranged along the vehicle width direction on the vehicle rear side of the cross member And a cross member auxiliary member whose both ends in the vehicle width direction are coupled to the left and right rockers, and a rectangular frame-like skeleton is formed on the floor at the front of the passenger compartment, and the cross member and the cross member auxiliary member are reinforced. By connecting with members, the rigidity of the skeleton of the front floor portion of the passenger compartment is improved. Therefore, when either the left or right front side member collides and a collision load is applied from the front of the vehicle to the rear of the vehicle, the left and right rockers move relative to each other in the vehicle front-rear direction, that is, the collision-side rocker. On the other hand, the movement of the anti-collision side rocker to the vehicle front side is suppressed, and the collision load is effectively transmitted to the anti-collision side rocker.

  According to a third aspect of the present invention, in the vehicle body front portion structure according to the second aspect, the reinforcing members are inclinedly arranged in a direction in which a plurality of reinforcing members are separated from each other toward the rear of the vehicle at the rear of the left and right front side members. It is characterized by being.

  A plurality of reinforcing members are arranged on the left and right front side members at the rear of the vehicle and inclined in directions away from each other toward the rear of the vehicle. Can be effectively transmitted to the rocker on the other side and the rocker on the anti-collision side.

  According to the first aspect of the present invention, deformation of the vehicle rear side portion can be prevented from the inclined portion of the front side member that occurs at the time of a vehicle front collision while suppressing an increase in weight.

  According to the second aspect of the present invention, when either the left or right front side member collides, it is possible to suppress deformation of the floor portion on the front side of the passenger compartment.

  According to the third aspect of the present invention, when either the left or right front side member collides, the deformation of the floor portion on the front side of the passenger compartment can be effectively suppressed.

  An embodiment of a vehicle body front structure according to the present invention will be described with reference to FIGS.

  In the figure, the arrow UP indicates the vehicle upward direction, the arrow FR in the figure indicates the vehicle forward direction, and the arrow IN in the figure indicates the vehicle width inside direction.

  As shown in FIG. 2, in the vehicle body of the present embodiment, the front portions 14 </ b> A of the pair of left and right front side members 14 extend along the longitudinal direction of the vehicle at both lower portions in the vehicle width direction of the engine room 10 which is the front portion of the vehicle body. Are arranged. Further, the front portion 14A of the front side member 14 has a closed cross-sectional structure extending in the vehicle front-rear direction.

  Note that the closed cross-sectional structure is a cross-sectional structure in which the opening outer peripheral portion of the target cross section is substantially continuous and has high strength and high rigidity, and substantially the target cross section is the outer periphery. This means that even if a hole or the like smaller than the length is partially formed, there is no hole on the front side or the back side in the direction perpendicular to the cross section, and a configuration in which members around the opening are continuous is included. .

  As shown in FIG. 1, an inclined portion 14B inclined from the upper front side of the vehicle toward the lower rear side of the vehicle is formed on the rear side of the front side member 14, and the inclined portion connected to the rear end of the front portion 14A. The upper end portion (front end portion) of 14B is a bent portion 14C. The rear end (lower end) 14D of the inclined portion 14B is coupled to the front wall portion 16D of the lower cross member 16 as a cross member in a state of abutting from the front side of the vehicle.

  As shown in FIG. 3, the cross-sectional shape of the inclined portion 14B of the front side member 14 viewed from the longitudinal direction (vehicle front-rear direction) is a hat cross-sectional shape with the opening directed upward of the vehicle. The formed left and right flanges 14E and 14F are joined to the lower surface 18B of the inclined portion 18A of the dash panel 18 by welding or the like. Accordingly, the inclined portion 14B of the front side member 14 forms a closed cross section 19 with the dash panel 18, and the closed cross section 19 is formed along the longitudinal direction of the vehicle.

  As shown in FIG. 1, a planar portion 18C is formed from the rear end (lower end) 18E of the inclined portion 18A of the dash panel 18 toward the rear of the vehicle.

  As shown in FIG. 2, the left and right rockers 20 are arranged along the longitudinal direction of the vehicle at predetermined intervals in the vehicle width direction outside the rear end 14D of the left and right front side members 14 in the vehicle width direction. Has been. Further, the lower cross member 16 is arranged in the longitudinal direction along the vehicle width direction, and both end portions 16A of the lower cross member 16 in the vehicle width direction are coupled to the front end portions 20A of the left and right rockers 20.

  The rocker 20 is a skeleton member having a closed cross-sectional structure that is disposed at both ends in the vehicle width direction of the vehicle compartment floor along the longitudinal direction of the vehicle.

  As shown in FIG. 1, the cross-sectional shape of the lower cross member 16 viewed from the longitudinal direction (vehicle width direction) is a hat cross-sectional shape with the opening directed upward in the vehicle, and is formed before the opening end. The flange 16B is coupled to the lower surface 18B of the inclined portion 18A of the dash panel 18 and the rear flange 16C is coupled to the lower surface 18D of the flat portion 18C of the dash panel 18 by welding or the like. Therefore, the lower cross member 16 forms a closed section 24 with the dash panel 18.

  As shown in FIG. 2, the closed cross section 24 is formed with its longitudinal direction along the vehicle width direction. Further, an additional cross member 26 as a cross member auxiliary member is disposed along the vehicle width direction at a predetermined interval on the vehicle rear side of the lower cross member 16. Both end portions 26A in the direction are coupled to the middle 20B in the front-rear direction of the left and right rockers 20.

  As shown in FIG. 1, the cross-sectional shape of the additional cross member 26 as viewed from the longitudinal direction (vehicle width direction) is a hat cross-sectional shape with the opening directed upward in the vehicle, and the front and rear formed at the end of the opening. The flanges 26B and 26C are coupled to the lower surface 18D of the flat portion 18C of the dash panel 18 by welding or the like. Therefore, the additional cross member 26 forms a closed cross-section portion 30 with the dash panel 18, and the closed cross-section portion 30 is formed along the vehicle width direction in the longitudinal direction.

  As shown in FIG. 2, the inclined portions 14B of the left and right front side members 14 are disposed to be inclined from the vehicle front inner side to the vehicle rear outer side in a direction away from each other from the vehicle front toward the vehicle rear. It has a letter C shape Further, an outer reinforcement in the vehicle width direction as a reinforcing member is provided at a portion between the lower cross member 16 and the additional cross member 26 on the extension line L1 of the inclined portion 14B of the front side member 14 to the vehicle rear side. 34 is arranged.

  As shown in FIG. 1, the front end portion 34A of the vehicle width direction outer reinforcement 34 is joined to the rear wall portion 16E of the lower cross member 16 by welding or the like, and the rear end portion of the vehicle width direction outer reinforcement 34 34B is coupled to the front wall portion 26D of the additional cross member 26 by welding or the like.

  As shown in FIG. 4, the cross-sectional shape viewed from the longitudinal direction (vehicle longitudinal direction) of the outer reinforcement 34 in the vehicle width direction is a hat cross-sectional shape with the opening directed upward in the vehicle. The formed left and right flanges 34C and 34D are coupled to the lower surface 18D of the flat surface portion 18C of the dash panel 18 by welding or the like. Accordingly, the outer reinforcement 34 in the vehicle width direction forms a closed section 38 with the dash panel 18, and the closed section 38 connects the closed section 24 and the closed section 30.

  As shown in FIG. 2, a vehicle width direction inner reinforcement 40 as a reinforcing member is disposed inside the vehicle width direction outer reinforcement 34 inside the vehicle width direction. The vehicle width direction inner reinforcement 40 is inclined in the longitudinal direction from the vehicle front outer side toward the vehicle rear inner side, and the vehicle width direction outer reinforcement 34 and the vehicle width direction inner reinforcement 40 move rearward of the vehicle. In a direction spaced apart from each other, they are inclined and arranged in a letter C shape in plan view.

  Similarly to the outer reinforcement 34 in the vehicle width direction, the front end portion 40A of the inner reinforcement 40 in the vehicle width direction is joined to the rear wall portion 16E of the lower cross member 16 by welding or the like. The rear end portion 40B of the hosement 40 is coupled to the front wall portion 26D of the additional cross member 26 by welding or the like.

  Although not shown, the cross-sectional shape of the inner reinforcement 40 in the vehicle width direction as viewed from the longitudinal direction (vehicle front-rear direction) as in the vehicle width direction outer reinforcement 34 is such that the opening faces upward in the vehicle. The left and right flanges 40 </ b> C and 40 </ b> D formed at the opening end are coupled to the lower surface 18 </ b> D of the flat portion 18 </ b> C of the dash panel 18 by welding or the like. Therefore, the inner reinforcement 40 in the vehicle width direction forms a closed section 42 with the dash panel 18, and the closed section 42 connects the closed section 24 and the closed section 30.

  Therefore, as shown in FIG. 5, when a load F1 acts on the front portion 14A of the front side member 14 from the front of the vehicle to the rear of the vehicle at the time of a frontal collision, the load of the front side member 14 to which the load F1 is input. A step H1 in the vehicle vertical direction is formed between the front portion 14A and the rear end 14D of the inclined portion 14B of the front side member 14. As a result, at the time of the frontal collision of the vehicle, each part along the longitudinal direction of the front side member 14 has an axial force D1 along the axial direction (longitudinal direction) and the vehicle starting from the rear end 14D of the front side member 14. Although the rear end 14D of the front side member 14 serves as a starting point of the moment M1, although receiving the upward moment M1, the vehicle width direction outer reinforcement 34 and the vehicle disposed rearward of the rear end 14D of the inclined portion 14B. The moment M1 is not generated in the inner reinforcement 40 in the width direction.

  That is, the distribution of the moment M1 gradually increases toward the front of the vehicle at the front side member 14 on the front side of the vehicle from the lower cross member 16, but on the outer side in the vehicle width direction at the rear of the vehicle from the lower cross member 16. It does not occur in the reinforcement 34 and the inner reinforcement 40 in the vehicle width direction.

  The load F1 is applied to the left and right rockers 20 to which both end portions 16A in the vehicle width direction of the lower cross member 16 are coupled via the lower cross member 16 whose longitudinal direction is disposed along the vehicle width direction from the front side member 14. Left and right rockers in which both end portions 26A in the vehicle width direction of the additional cross member 26 are coupled from the outer reinforcement 34 in the vehicle width direction and the inner reinforcement 40 in the vehicle width direction via the additional cross member 26. 20 is transmitted.

  Further, as shown in FIG. 2, in the inclined portion 18 </ b> A of the dash panel 18, the left and right rockers 20, the lower cross member 16, and the additional cross member 26 have a rectangular frame-like skeleton on the floor in the front part of the passenger compartment. The lower cross member 16 and the additional cross member 26 are connected to each other by the vehicle width direction outer side reinforcement 34 and the vehicle width direction inner side reinforcement 40. As a result, the rigidity of the skeleton of the front floor portion of the passenger compartment is improved. For this reason, when either one of the left and right front side members 14 collides with another vehicle or the like and a load F1 acts on either one of the left and right front side members 14 from the front of the vehicle to the rear of the vehicle, the left and right rockers The relative movement of the vehicle 20 in the longitudinal direction of the vehicle, that is, the movement of the anti-collision side rocker 20 toward the vehicle front side with respect to the collision side rocker 20 is suppressed by the skeleton of the floor portion on the front side of the passenger compartment, and It can be effectively transmitted to the side rocker 20.

  Furthermore, in the present embodiment, the outer reinforcement 34 in the vehicle width direction is provided at a position between the lower cross member 16 and the additional cross member 26 on the extension line L1 of the inclined portion 14B of the front side member 14 to the vehicle rear side. Is arranged. For this reason, the load F1 can be effectively transmitted to the rocker 20 on the collision side along the outer reinforcement 34 in the vehicle width direction. In addition, the vehicle width direction inner reinforcement 40 is inclined in the longitudinal direction from the vehicle front outer side toward the vehicle rear inner side. For this reason, the load F1 can be effectively transmitted to the rocker 20 on the anti-collision side along the inner reinforcement 40 in the vehicle width direction. As a result, the collision load F1 is effectively supported by the left and right rockers 20, so that the deformation of the vehicle body can be reduced.

  2 denotes left and right rear side members, and 46 and 48 denote cross members on the vehicle rear side.

  Next, the operation of this embodiment will be described.

  As shown in FIG. 1, when a load F1 acts on the front portion 14A of the front side member 14 from the front side of the vehicle toward the rear side of the vehicle due to a frontal collision with another vehicle, the front to which the load F1 is input. A step H1 in the vehicle vertical direction is formed between the front portion 14A of the side member 14 and the rear end 14D of the inclined portion 14B of the front side member 14. As a result, as shown in FIG. 5, at the time of the vehicle front collision, each part along the longitudinal direction of the front side member 14 starts from the axial force D1 along the axial direction and the rear end 14D of the front side member 14. However, since the rear end 14D of the front side member 14 serves as the starting point of the moment M1, the vehicle width direction outer reinforcement 34 and the vehicle rearward from the rear end 14D of the inclined portion 14B. No moment M1 is generated in the inner reinforcement 40 in the width direction.

  In other words, in the present embodiment, the rear end 14D of the front side member 14 is coupled to the lower cross member 16 coupled to the left and right rockers 20, and is on the extension line L1 (see FIG. 2) of the rear end 14D of the front side member 14. A vehicle width direction outer reinforcement 34 is disposed at a portion that becomes. For this reason, for example, a vehicle body front portion structure (an extension of the front side member 14 and the outer reinforcement 34 in the vehicle width direction) having an extending portion that continues from the rear end 14D of the inclined portion 14B of the front side member 14 toward the rear of the vehicle. ), The moment M0 (see FIG. 5) starting from the rear end of the extended portion (the rear end of the outer reinforcement 34 in the vehicle width direction) is the rear of the vehicle from the rear end 14D of the inclined portion 14B. However, in the present embodiment, the moment M1 can be prevented from being generated at the rear side of the rear end 14D of the inclined portion 14B.

  Therefore, in this embodiment, in the vehicle width direction outer reinforcement 34 and the vehicle width direction inner reinforcement 40 arranged on the vehicle rear side of the inclined portion 14B of the front side member 14, the shaft generated at the time of the vehicle front collision is generated. By performing reinforcement that can withstand the force D1, deformation can be prevented, and there is no need to perform reinforcement that can withstand the moment. For this reason, the weight increase by reinforcement can be suppressed.

  Compared to a configuration (integrated structure) having an extending portion that continues from the rear end 14D of the inclined portion 14B of the front side member 14 toward the rear of the vehicle, the front side member 14 and the outer reinforcement 34 in the vehicle width direction or By making the vehicle width direction inner reinforcement 40 a separate member, the productivity of the front side member 14 and the vehicle width direction outer reinforcement 34 or the vehicle width direction inner reinforcement 40 is improved, and the yield is improved. Good and improved accuracy.

  Further, in the present embodiment, as shown in FIG. 2, the left and right rockers 20, the lower cross member 16, and the additional cross member 26 are arranged in the inclined portion 18 </ b> A of the dash panel 18 that constitutes the floor portion at the front of the passenger compartment. And the lower cross member 16 and the additional cross member 26 are connected to each other in the vehicle width direction outer reinforcement 34 and the vehicle width direction inner reinforcement 40. It is connected with. For this reason, the rigidity of the skeleton of the passenger compartment front floor can be improved. As a result, when either the left or right front side member 14 collides and a load F1 is applied from the front of the vehicle to the rear of the vehicle, the left and right rockers 20 move relative to each other in the vehicle front-rear direction, that is, on the collision side. The anti-collision rocker 20 can be prevented from moving forward with respect to the rocker 20, and the load F1 can be effectively transmitted to the anti-collision rocker 20. Therefore, when either the left or right front side member 14 collides, the deformation of the floor portion on the front side of the passenger compartment can be suppressed.

  Furthermore, in the present embodiment, the outer reinforcement 34 in the vehicle width direction is disposed between the lower cross member 16 and the additional cross member 26 that are on the extension line L1 of the inclined portion 14B of the left and right front side members 14 to the vehicle rear side. Therefore, the load F1 can be effectively transmitted to the rocker 20 on the collision side along the outer reinforcement 34 in the vehicle width direction, and the inner reinforcement 40 in the vehicle width direction has the longitudinal direction on the vehicle front outer side. Therefore, the load F1 can be effectively transmitted to the rocker 20 on the anti-collision side along the inner reinforcement 40 in the vehicle width direction. As a result, when either the left or right front side member 14 collides and a load F1 acts from the front of the vehicle to the rear of the vehicle, the load F1 is effectively transmitted to the rocker 20 on the collision side and the anti-collision side. can do. Therefore, when either the left or right front side member 14 collides, deformation of the front floor portion of the passenger compartment can be further suppressed.

  In the above, the present invention has been described in detail with respect to specific embodiments. However, the present invention is not limited to the above embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, as shown by a two-dot chain line in FIG. 4, the upper reinforcement 50 may be disposed above the vehicle in the vehicle width direction outer reinforcement 34 with the flat portion 18 </ b> C of the dash panel 18 interposed therebetween. Similarly, the upper reinforcement 50 may be arranged above the vehicle in the vehicle width direction inner reinforcement 40 with the flat portion 18C of the dash panel 18 interposed therebetween.

  Further, in the above-described embodiment, the vehicle width direction outer reinforcement 34 and the vehicle width direction inner reinforcement 40 as the reinforcing members are arranged behind the left and right front side members 14, respectively. It is good also as a structure which has arrange | positioned three or more reinforcement members at the back of each front side member 14, respectively.

  Further, in the above embodiment, the vehicle width direction outer side reinforcement 34 and the vehicle width direction inner side reinforcement 40 are arranged behind the left and right front side members 14 respectively. Only one of the reinforcement 34 or the inner reinforcement 40 in the vehicle width direction may be arranged.

  Further, in the above-described embodiment, the inclined portions 14B of the left and right front side members 14 are disposed so as to be separated from each other from the front of the vehicle toward the rear of the vehicle, but instead, the inclined portions of the left and right front side members 14 are inclined. The part 14B may be arranged in parallel to each other along the vehicle front-rear direction, and a reinforcing member that connects the lower cross member 16 and the additional cross member 26 may be arranged on a line extending rearward of the inclined part 14B. good.

  Moreover, each cross-sectional shape of the front side member 14, the lower cross member 16, the additional cross member 26, the vehicle width direction outer side reinforcement 34, and the vehicle width direction inner side reinforcement 40 is not limited to the cross sectional shape of the above embodiment.

FIG. 3 is an enlarged sectional view taken along line 1-1 of FIG. It is a top view which shows the frame | skeleton of the vehicle body lower part to which the vehicle body front part structure which concerns on one Embodiment of this invention was applied. FIG. 3 is an enlarged cross-sectional view taken along line 3-3 in FIG. 1. FIG. 4 is an enlarged cross-sectional view taken along line 4-4 of FIG. It is operation | movement explanatory drawing of the vehicle body front part structure which concerns on one Embodiment of this invention.

Explanation of symbols

14 Front side member 14A Front side member front part 14B Front side member inclined part 14C Front side member bent part 14D Front side member rear end 16 Lower cross member (cross member)
18 Dash panel 20 Rocker 26 Additional cross member (cross member auxiliary member)
34 Vehicle width direction outside reinforcement (reinforcing member)
40 Reinforcement inside the vehicle width direction (reinforcement member)

Claims (3)

A front side member that is disposed on both sides of the front part of the vehicle body along the longitudinal direction of the vehicle, and an inclined part that is inclined at the rear end of the vehicle from the upper front side of the vehicle toward the lower rear side of the vehicle;
A rocker arranged in the vehicle longitudinal direction on the outside in the vehicle width direction of the inclined portion of the front side member; and
A cross member in which a longitudinal direction is arranged along the vehicle width direction and both end portions in the vehicle width direction are coupled to the left and right rockers, and a rear end of the front side member is coupled to a middle portion in the longitudinal direction;
The vehicle body front part structure characterized by having. A cross member auxiliary member in which the longitudinal direction is arranged along the vehicle width direction on the vehicle rear side of the cross member and both ends in the vehicle width direction are coupled to the left and right rockers;
A reinforcing member for connecting the cross member and the cross member auxiliary member;
The vehicle body front part structure according to claim 1, wherein   The vehicle body front part structure according to claim 2, wherein a plurality of the reinforcing members are inclinedly arranged in a direction in which the plurality of reinforcing members are separated from each other toward the rear of the vehicle at the rear of the left and right front side members.

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