JP2015186930A - Load transmission member and vehicle front structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a load transmission member and a vehicle front structure capable of effectively transmitting an impact load at a time of a small overlap crash to a front side member while avoiding the interference with an existing component.SOLUTION: A load transmission member 14 and a vehicle front structure 10 include: a body portion 32 attached to an outer surface, in a vehicle width direction, of each of front side members 12 disposed on respective both sides of a vehicle front portion in the vehicle width direction and extending in a vehicle front-back direction, and protruding to outside in the vehicle width direction from the front side members 12; and a front surface 64 provided to protrude from a front end of the body portion 32 and halfway along the body portion 32 in a vehicle vertical direction and inclined outward in the vehicle width direction from a vehicle front portion to a vehicle rear portion.

Description

  The present invention relates to a load transmission member and a vehicle front structure.

  Patent Document 1 below discloses a vehicle front structure provided with a projecting portion (load transmission member) that protrudes outward in the vehicle width direction from a front portion of a front side frame (front side member). Here, in the invention described in Patent Document 1, the collision load input from the barrier through the protruding portion is applied to the front side during a frontal collision (at the time of a minute lap collision) outside the front side frame in the vehicle width direction. It is configured so that it can be transmitted to the frame.

JP 2013-212757 A

  By the way, when attaching the load transmission member to the front side member, if there is not enough space for mounting the load transmission member due to existing parts such as wiring and intake system parts, a part of the load transmission member is notched and There are ways to avoid interference. However, when a part of the load transmitting member is notched, the region that collides with the barrier at the time of micro lap collision may change, and there is room for improvement from the viewpoint of effectively transmitting the collision load to the front side member.

  In view of the above facts, the present invention provides a load transmission member and a vehicle front structure that can effectively transmit a collision load at the time of a minute lap collision to a front side member while avoiding interference with existing parts. With the goal.

  The load transmission member according to the present invention as set forth in claim 1 is attached to the vehicle width direction outer surface of a front side member disposed on both sides of the vehicle front portion in the vehicle width direction and extending in the vehicle front-rear direction. A main body projecting outward from the front side member in the vehicle width direction, a front end of the main body and projecting in the middle of the vehicle in the vertical direction, and inclined outward in the vehicle width direction from the front of the vehicle toward the rear of the vehicle. And an inclined wall portion.

  In the load transmitting member according to the first aspect of the present invention, a main body portion is attached to the outer surface of the front side member in the vehicle width direction, and the front end portion of the main body portion is arranged from the front of the vehicle to the rear of the vehicle. An inclined wall portion that is inclined outward in the vehicle width direction is projected. Thereby, at the time of a micro lap collision, a collision load is input from the barrier to the inclined wall portion, whereby the main body portion presses the front side member inward in the vehicle width direction. As a result, lateral force is applied to the vehicle, and the passenger compartment can be moved away from the barrier.

  Further, since the inclined wall portion projects from the middle portion of the main body portion in the vehicle vertical direction, spaces are provided above and below the inclined wall portion. Thereby, it can avoid that a load transmission member interferes with the existing member using the space up and down of an inclined wall part. Furthermore, when the inclined wall portion is provided at the upper end portion or the lower end portion of the main body portion, the region of the inclined wall portion that collides with the barrier at the time of a minute lap collision is biased downward or upward, so that the vehicle A clockwise or counterclockwise rotational moment may act in a side view as viewed from the width direction. In contrast, by providing the inclined wall portion in the middle portion of the main body portion in the vehicle vertical direction, it is possible to suppress the above-described rotational moment from acting, and the main body portion can be effectively moved inward in the vehicle width direction. Can be pressed.

  A load transmitting member according to a second aspect of the present invention is the load transmitting member according to the first aspect, wherein the main body portion is joined to the front side member at least at an upper portion and a lower portion.

  In the load transmission member according to the present invention as set forth in claim 2, by rotating at least an upper part and a lower part of the main body part with the front side member, a clockwise or counterclockwise rotational moment in a side view as seen from the vehicle width direction. Can be prevented from acting. Here, “at least the upper part and the lower part” as used herein is a concept including a configuration in which the main body part and the front side member are entirely bonded with an adhesive or the like.

  A load transmitting member according to a third aspect of the present invention is the load transmitting member according to the first or second aspect, wherein the main body portion is disposed along the front side member. A base plate that is fastened to the side member; and a load receiving wall that protrudes outward in the vehicle width direction from the base plate and receives a collision load that is input to the inclined wall portion. A surface of the wall on the vehicle front side and the base plate are connected by a reinforcing member.

  In the load transmitting member according to the third aspect of the present invention, the base plate and the surface of the load receiving wall on the vehicle front side are connected by the reinforcing member. Thereby, when receiving the collision load input into the inclined wall part at the time of a micro lap collision with a load receiving wall, it can suppress that a load receiving wall deform | transforms into the vehicle rear side.

  According to a fourth aspect of the present invention, there is provided a vehicle front portion structure including a pair of front side members disposed on both sides in the vehicle width direction of the vehicle front portion and extending in the vehicle front-rear direction, and attached to the front side member. The load transmission member according to any one of claims 1 to 3.

  In the vehicle front portion structure according to the fourth aspect of the present invention, the effect of the invention according to any one of the first to third aspects can be obtained.

  A vehicle front portion structure according to a fifth aspect of the present invention is the vehicle front portion structure according to the fourth aspect, wherein a power unit is disposed between the pair of front side members, The load transmitting member is provided at a position where at least the rear end portion overlaps the power unit in the vehicle front-rear direction when viewed from the side in the vehicle width direction.

  In the vehicle front structure according to the fifth aspect of the present invention, when a collision load is input from the barrier to the load transmission member at the time of a minute lap collision, the load transmission member bends the front side member inward in the vehicle width direction to It hits. As a result, part of the collision load can be transmitted to the power unit, and a larger lateral force can be applied to the vehicle at the time of a minute lap collision.

  As described above, according to the inventions according to claims 1 and 4, it is possible to effectively transmit the collision load at the time of a minute lap collision to the front side member while avoiding interference with existing parts. it can.

  According to the invention which concerns on Claim 2, compared with the case where only one of the upper part and lower part of a main-body part is joined with the front side member, it can suppress that a rotational moment acts more effectively.

  According to the invention which concerns on Claim 3, the collision load at the time of a micro lap collision can be more effectively transmitted to a front side member.

  According to the invention which concerns on Claim 5, a vehicle compartment can be effectively kept away from a barrier at the time of a micro lap collision.

It is a perspective view which shows the principal part of the vehicle front part structure which concerns on this embodiment. It is a side view which shows the principal part of the vehicle front part structure which concerns on this embodiment. It is a side view which shows the load transmission member which comprises the vehicle front part structure which concerns on this embodiment. It is a top view which shows the load transmission member which comprises the vehicle front part structure which concerns on this embodiment. It is sectional drawing which looked at the cut surface cut | disconnected by the 5-5 line | wire of FIG. 3 from the vehicle upper direction. It is a top view which shows the state at the time of the micro wrap collision of the vehicle front part structure which concerns on this embodiment. It is a side view which shows the load transmission member of a comparative example.

  Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. For convenience of explanation, an arrow UP appropriately shown in each figure is an upper side of the vehicle, an arrow FR is a front side of the vehicle, and an arrow LH is a left side of the vehicle. In addition, in the following description, when the vertical, front / rear, and left / right directions are described without special mention, the vertical direction of the vehicle, the front / rear direction of the vehicle, the left / right direction of the vehicle (vehicle width direction) are indicated. To do. Furthermore, although each figure has shown the left side of the vehicle, since the right side of the vehicle is also symmetrical and the same, description on the right side of the vehicle will be omitted as appropriate.

(Vehicle front structure)
As shown in FIG. 1, the vehicle front structure 10 according to the present embodiment mainly includes a front side member 12 and a load transmission member 14. A pair of front side members 12 are disposed on both sides in the vehicle width direction of the front portion of the vehicle, and extend in the vehicle front-rear direction (FIG. 1 shows only the front side member 12 on the left side of the vehicle. ). The front side member 12 has a closed cross-sectional structure with a substantially rectangular cross section, and a front bumper reinforcement 16 is provided at the front end of the front side member 12.

  The front bumper reinforcement 16 has a closed cross-sectional structure with a substantially rectangular cross section, and extends in the vehicle width direction and is installed between the pair of front side members 12. A crash box having a closed cross-sectional structure may be disposed between the front end portion of the front side member 12 and the front bumper reinforcement 16. Moreover, the cross-sectional shape of the front side member 12 and the front bumper reinforcement 16 may be a shape other than a rectangle, for example, a closed cross-sectional structure having a polygonal cross section.

  Between the pair of front side members 12, a power unit 18 including an engine and a transmission is disposed. The power unit 18 is supported by a bracket 20 and an engine mount 22 provided on the front side member 12.

  The front side member 12 includes an inner wall 24 on the inner side in the vehicle width direction, an outer wall 26 on the outer side in the vehicle width direction, an upper wall 27 on the upper side in the vehicle vertical direction, and a lower wall 28 on the lower side in the vehicle vertical direction. The outer wall 26 of the front side member 12 has a plurality of mounting holes (not shown) for mounting a load transmission member 14 to be described later. The inner surface of the outer wall 26 is coaxial with the mounting holes. A weld nut (not shown) is provided.

(Load transmission member)
The load transmission member 14 is a metal member that is fastened and fixed to the outer wall 26 of the front side member 12 by four bolts 30. The load transmission member 14 mainly includes a main body 32 that protrudes outward from the front side member 12 in the vehicle width direction. , And an inclined wall portion 34 projecting from a front end portion of the main body portion 32 and a middle portion in the vehicle vertical direction. As shown in FIG. 2, the load transmission member 14 is provided at a position where at least the rear end portion 14 </ b> A overlaps the power unit 18 in the vehicle front-rear direction when viewed from the side in the vehicle width direction. The load transmission member 14 may be provided on at least one of the pair of front side members 12.

  As shown in FIG. 4, a base plate 40 is provided at the inner end in the vehicle width direction of the main body 32 of the load transmitting member 14. The base plate 40 is disposed along the front side member 12 with the vehicle width direction as the thickness direction. As shown in FIG. 3, the base plate 40 is formed in a substantially rectangular flat plate shape, and the corners of the lower portion and the rear end portion of the base plate 40 are notched. Further, an elongated bolt hole 40A through which the bolt 30 is inserted is formed in the upper part of the rear end portion of the base plate 40, and a bolt hole 40B is formed below the bolt hole 40A. . Here, in the present embodiment, as an example, the upper bolt hole 40A is formed in the shape of a long hole whose longitudinal direction is the vehicle front-rear direction, but is not limited thereto, and is a circular hole similar to the bolt hole 40B. Also good.

  A bolt hole 40C through which the bolt 30 is inserted is formed at the upper part of the front end portion of the base plate 40, and a bolt hole 40D through which the bolt 30 is inserted is formed at the lower part of the front end portion of the base plate 40. Yes. In the present embodiment, the base plate 40 is configured to be fastened to the front side member 12 by inserting the bolts 30 into the four bolt holes 40A, 40B, 40C, and 40D, but the present invention is not limited thereto. Instead, the number of bolts 30 may be changed. For example, only the bolt hole 40 </ b> C and the bolt hole 40 </ b> B may be formed in the base plate 40 and fastened with the two bolts 30. Further, the entire surface of the base plate 40 may be joined to the outer wall 26 of the front side member 12 using an adhesive or the like. Furthermore, these may be combined.

  As shown in FIG. 4, a substantially L-shaped load receiving plate (load receiving wall) 42 is joined to the surface of the base plate 40 on the vehicle width direction outer side (vehicle left side) by arc welding or the like in plan view. Yes. The load receiving plate 42 extends in the vehicle front-rear direction along the base plate 40, and a second load receiving wall that is bent outward from the front end of the first surface 42A in the vehicle width direction. And the surface 42B. As shown in FIG. 3, the first surface 42 </ b> A is formed in the same shape as the outer shape of the rear end portion of the base plate 40, and the length in the vehicle vertical direction is slightly shorter than the base plate 40. . As shown in FIG. 4, the second surface 42B is bent at a substantially right angle with respect to the first surface 42A, and an inclined wall portion 34, which will be described later, projects from the front surface of the second surface 42B. It is installed.

  Here, an upper plate 44, an intermediate plate 46, and a lower plate 48 are arranged in the vehicle vertical direction between the surface on the vehicle width direction outer side of the first surface 42A and the surface on the vehicle rear side of the second surface 42B. It extends over substantially parallel (in FIG. 4, only the upper plate 44 is illustrated). The upper plate 44 is disposed on the load receiving plate 42 and is joined to the first surface 42A and the second surface 42B by arc welding or the like. Further, the rear end edge of the upper plate 44 is formed in a shape that inclines toward the rear of the vehicle from the outer side in the vehicle width direction toward the inner side in the vehicle width direction in plan view, and the rear end of the upper plate 44 on the first surface 42A side. The part is extended to the vehicle rear side.

  As shown in FIG. 3, an intermediate plate 46 is disposed below the upper plate 44. The middle plate 46 is disposed at the center of the load receiving plate 42 in the vertical direction, and is joined to the first surface 42A and the second surface 42B by arc welding or the like. Further, the middle plate 46 is formed in substantially the same shape as the upper plate 44. The lower plate 48 is disposed below the load receiving plate 42, and is joined to the first surface 42A and the second surface 42B by arc welding or the like. The middle plate 46 is formed in substantially the same shape as the upper plate 44 and the middle plate 46. In the present embodiment, the three plate members are bridged on the load receiving plate 42. However, the present invention is not limited to this. For example, only the middle plate 46 may be bridged. Conversely, four or more plate members may be bridged.

  As shown in FIG. 4, an inclined wall portion 34 projects from the front surface of the second surface 42 </ b> B of the load receiving plate 42. As shown in FIG. 1, the inclined wall portion 34 projects from the middle portion of the main body portion 32 in the vehicle vertical direction. As shown in FIG. 4, the inclined wall portion 34 mainly includes an upper connecting plate 50, a lower connecting plate 52, and a bent plate 35 (in FIG. 4, the upper connecting plate Only the plate 50 and the bent plate 35 are shown).

  The upper connection plate 50 and the lower connection plate 52 are disposed substantially parallel to each other with a space in the vehicle vertical direction with the vehicle vertical direction as the thickness direction. The upper connecting plate 50 protrudes forward from the upper portion of the load receiving plate 42, and the rear end portion of the upper connecting plate 50 extends along the vehicle width direction and is arc welded to the second surface 42B. It is joined by. Further, the end of the upper connecting plate 50 on the inner side in the vehicle width direction is joined to the outer surface of the base plate 40 in the vehicle width direction by arc welding or the like. In addition, the front end portion of the upper connecting plate 50 is an inclined portion 50A that is inclined outward in the vehicle width direction from the front of the vehicle toward the rear of the vehicle, and is joined to the front surface 64 of the bent plate 35 described later by arc welding or the like. ing.

  Here, a first reinforcing plate 54, a second reinforcing plate 56, and a third reinforcing plate 58 are provided on the upper surface of the upper connecting plate 50. The first reinforcing plate 54 extends in the vehicle longitudinal direction with the vehicle width direction as the thickness direction, and the rear end portion of the first reinforcing plate 54 is joined to the second surface 42B of the load receiving plate 42 by arc welding or the like. Has been. Further, the front end portion of the first reinforcing plate 54 is bent outward in the vehicle width direction along the outer edge of the upper connecting plate 50 and joined to the front surface 64 of the bent plate 35 by arc welding or the like. Thus, the front surface 64 of the bending plate 35 and the load receiving plate 42 are connected in the vehicle front-rear direction by the first reinforcing plate 54.

  Here, a through hole 54A is formed at the rear end portion of the first reinforcing plate 54, and the collar member 60 is attached through the through hole 54A. The collar member 60 is a substantially cylindrical member that is open at both ends and has the vehicle width direction as an axial direction. One end portion of the collar member 60 protrudes outward from the first reinforcing plate 54 in the vehicle width direction. The other end of the collar member 60 is in contact with the base plate 40. Further, the collar member 60 is disposed coaxially with the bolt hole 40 </ b> C formed in the base plate 40, and is configured such that the bolt 30 can be inserted from the outer side of the collar member 60 in the vehicle width direction.

  A second reinforcing plate 56 is joined to the front end portion of the first reinforcing plate 54. As shown in FIG. 3, the second reinforcing plate 56 is a substantially triangular plate material, and is disposed obliquely along the inclined portion 50 </ b> A of the upper connecting plate 50. Also, as shown in FIG. 4, one end of the second reinforcing plate 56 is joined to the front end of the first reinforcing plate 54 by arc welding or the like. On the other hand, the other end portion of the second reinforcing plate 56 extends to the central portion of the upper connecting plate 50 along the inclined portion 50 </ b> A of the upper connecting plate 50.

  A third reinforcing plate 58 is disposed on the inner side in the vehicle width direction of the central portion of the first reinforcing plate 54 in the vehicle front-rear direction. The third reinforcing plate 58 extends in the vehicle width direction with the vehicle longitudinal direction as the thickness direction, and the end of the third reinforcing plate 58 on the inner side in the vehicle width direction is joined to the base plate 40 by arc welding or the like. Yes. Further, the outer end of the third reinforcing plate 58 in the vehicle width direction is joined to the first reinforcing plate 54 by arc welding or the like. In this way, the base plate 40 and the first reinforcing plate 54 are connected in the vehicle width direction by the third reinforcing plate 58.

  A lower connecting plate 52 is disposed below the upper connecting plate 50. As shown in FIG. 5, the lower connecting plate 52 is formed in substantially the same shape as the upper connecting plate 50. Further, the rear end portion of the lower connecting plate 52 is joined to the second surface 42B of the load receiving plate 42, and the front end portion of the lower connecting plate 52 is outside in the vehicle width direction from the front of the vehicle toward the rear of the vehicle. The inclined portion 52A is inclined to the front surface 64 and is joined to the front surface 64 of the bent plate 35, which will be described later, by arc welding or the like.

  A fourth reinforcing plate 62 as a reinforcing member is disposed below the lower connecting plate 52. The fourth reinforcing plate 62 is disposed on the vehicle front side of the second surface 42B of the load receiving plate 42, and is formed with the vehicle vertical direction as the thickness direction. The fourth reinforcing plate 62 has a triangular shape that is substantially the same as the second reinforcing plate 56 in plan view, and is bridged between the base plate 40 and the second surface 42B of the load receiving plate 42 so as to arc. They are joined by welding. In this way, the base plate 40 and the second surface 42B of the load receiving plate 42 are connected by the fourth reinforcing plate 62.

  Here, as shown in FIG. 4, the bent plate 35 is joined to the front end portion of the upper connecting plate 50 and the front end portion of the lower connecting plate 52. The bent plate 35 is formed by bending a sheet metal, and includes a front surface 64 and a side surface 66.

  The front surface 64 is a portion to which a collision load from the barrier is input at the time of a minute lap collision, and is located at the front end portion of the inclined wall portion 34. The front surface 64 is inclined outward in the vehicle width direction from the front of the vehicle toward the rear of the vehicle. Further, the inner end of the front surface 64 in the vehicle width direction is joined to the first reinforcing plate 54 by arc welding or the like, and the outer end of the front surface 64 in the vehicle width direction is bent rearward so that the side surface 66 Is formed. The side surface 66 extends along the vehicle front-rear direction, and is joined to the front end portions of the upper plate 44, the middle plate 46, and the lower plate 48 by arc welding or the like, as shown in FIG. .

  Here, an upper cutout portion 64A formed by cutting out the upper portion of the bending plate 35 is provided above the front surface 64, and formed below the front surface 64 by cutting out the lower portion of the bending plate 35. A lower notch 64B is provided. As described above, in this embodiment, as an example, the front surface 64 is formed by cutting out the upper and lower portions of the bending plate 35. However, the present invention is not limited to this, and the bending plate 35 may be formed by a method other than machining. For example, you may shape | mold the bending board 35 provided with the upper notch part 64A and the lower notch part 64B using a type | mold.

  In the present embodiment, as an example, the lower notch portion 64B is formed with a deeper (higher) notch depth (notch height) than the upper notch portion 64A. The notch depth and shape of the notch part 64A and the lower notch part 64B may be appropriately changed according to the positional relationship with the existing parts and the strength required for the load transmission member 14. That is, the front surface 64 may be disposed at a position shifted in the vehicle vertical direction with respect to the main body portion 32.

  Furthermore, in the present embodiment, the positions of the front end portions and the rear end portions of the upper plate 44, the middle plate 46, and the lower plate 48 are disposed at substantially the same position in plan view, but this is not limitative. Instead, the positions of the front end portions may be shifted. In this case, the collision load input from the front of the vehicle can be distributed and transmitted on the front end sides of the upper plate 44, the middle plate 46, and the lower plate 48, and can be transmitted on the rear end sides in a concentrated manner. . As a result, the rear end side of the load transmitting member 14 can be easily deformed inward in the vehicle width direction, and the front side member 12 can be efficiently deformed inward in the vehicle width direction.

  Further, a temporary stopper for temporarily fixing the load transmitting member 14 to the outer wall 26 of the front side member 12 may be provided at the center of the base plate 40 in the vehicle longitudinal direction between the upper plate 44 and the middle plate 46. Good. In this case, the load transmitting member 14 can be temporarily held by inserting the temporary fastener into an attachment hole (not shown) formed in the outer wall 26 and locking it.

  In the present embodiment, the load transmission member 14 is made of metal. However, the present invention is not limited to this, and the load transmission member 14 may be made of a resin material or the like as long as it has rigidity (strength) capable of receiving a collision load. Furthermore, in the present embodiment, the members are joined together by arc welding as an example. However, the present invention is not limited to this, and other methods may be employed. For example, the members may be joined with an adhesive or a rivet. . Moreover, you may join using a volt | bolt and a nut.

(Action and effect)
Next, the operation and effect of this embodiment will be described.

  In the vehicle front part structure 10 of the present embodiment, as shown in FIG. 2, an air cleaner 70 that is an existing part is disposed in the vicinity of the load transmission member 14. Here, since the inclined wall portion 34 of the present embodiment protrudes in the middle portion of the main body portion 32 in the vehicle vertical direction, a space is formed above the inclined wall portion 34 by the upper notch portion 64A. . Thereby, interference with the air cleaner 70 can be avoided using the upper notch 64A. That is, it is possible to secure a mounting space for the load transmission member 14 even if existing parts are provided. Further, the weight of the load transmission member 14 can be reduced by the amount of space formed above and below the inclined wall portion 34. In the present embodiment, the air cleaner 70 is disposed in the vicinity of the load transmitting member 14. However, when other existing components are disposed in the vicinity of the load transmitting member 14, the load transmitting member 14 and the existing Interference with parts can be avoided.

  Furthermore, in this embodiment, it is possible to suppress the rotational moment from acting on the load transmission member 14 at the time of a minute lap collision. This effect will be described below using a comparative example.

  As shown in FIG. 7, the load transmission member 100 of the comparative example is configured in the same shape as the load transmission member 14 according to the present embodiment except for the inclined wall portion 102. A bent plate 103 is disposed at the front end portion of the inclined wall portion 102, and the bent plate 103 is inclined toward the vehicle width direction outer side from the front of the vehicle toward the rear of the vehicle, and the front 104 of the vehicle. And a side surface 106 bent toward the vehicle rear side from the end portion on the outer side in the width direction. Further, an upper notch 104 </ b> A formed by notching the upper part of the bent plate 103 is formed above the front surface 104.

  On the other hand, the lower portion of the bending plate 103 is not cut out, and the front surface 104 and the side surface 106 extend to the lower end portion of the load transmitting member 100. Note that a through hole 110 for inserting a bolt is formed at the boundary between the front surface 104 and the side surface 106 at the center in the vertical direction of the bending plate 103.

  Consider a case where a minute lap collision occurs with the load transmitting member 100 configured as described above attached to a vehicle. At this time, when a collision load is input from the barrier to the front surface 104 of the bent plate 103 of the inclined wall portion 102, the front surface 104 and the side surface 106 extend to the lower end portion of the load transmitting member 100. The load is input to the lower side of the load transmission member 100 in a biased manner. As a result, a counterclockwise rotational moment M is applied to the load transmission member 100 in a side view as viewed from the vehicle width direction, and the collision load input to the load transmission member 100 is effectively applied to the front side member 12. I can't communicate.

  On the other hand, in the load transmission member 14 according to the present embodiment, as shown in FIG. 3, the front surface 64 of the bent plate 35 constituting the inclined wall portion 34 is provided in the middle portion of the main body portion 32 in the vehicle vertical direction. . As a result, as shown in FIG. 6, when a collision load is input from the barrier W to the front face 64 at the time of a minute lap collision, the load transmission member 14 is counterclockwise as viewed from the side in the vehicle width direction. It is possible to suppress the rotational moment from acting. As a result, the load transmitting member 14 is effectively pressed inward in the vehicle width direction, and the collision load input from the barrier W can be effectively transmitted to the front side member 12.

  Here, when the vehicle further advances from the state of FIG. 6, the front side member 12 pressed by the load transmission member 14 is bent inward in the vehicle width direction. Then, the bent inner wall 24 of the front side member 12 hits the side wall portion of the power unit 18, and the power unit 18 is pressed inward in the vehicle width direction through the front side member 12. As a result, at least a part of the collision load input to the load transmission member 14 is transmitted to the power unit 18 via the front side member 12 and a lateral force is applied to the vehicle, and the passenger compartment (occupant space) is removed from the barrier W. You can keep away.

  Further, as shown in FIG. 1, the main body portion 32 of the load transmitting member 14 of the present embodiment is fastened to the front side member 12 by four bolts 30. In other words, at least the upper part and the lower part of the main body part 32 are joined to the front side member 12. Thereby, it can suppress more effectively that a rotational moment acts on the load transmission member 14. FIG. That is, in the configuration in which the bolt 30 is inserted only into the upper portion of the main body 32 and joined to the front side member 12, when the collision load is input, the lower side of the main body 32 that is not fastened to the front side member 12 is the vehicle. It may be displaced rearward and a counterclockwise rotational moment may be applied in a side view. Conversely, in the configuration in which the bolt 30 is inserted only into the lower portion of the main body portion 32 and joined to the front side member 12, the upper portion of the main body portion 32 that is not fastened to the front side member 12 when a collision load is input. The side may be displaced to the rear of the vehicle and a clockwise rotational moment may be applied in a side view. On the other hand, in this embodiment, the load transmission member 14 is joined to the front side member 12 at least at the upper part and the lower part, thereby suppressing the rotation moment from acting on the main body part 32 in a side view. it can.

  Further, as shown in FIG. 5, a fourth reinforcing plate 62 is bridged between the base plate 40 and the second surface 42 </ b> B of the load receiving plate 42, and the base plate is supported by the fourth reinforcing plate 62. 40 and the second surface 42B of the load receiving plate 42 are connected. As a result, when the load receiving plate 42 receives the collision load input to the front surface 64 at the time of the minute lap collision, the load receiving plate 42 can be prevented from being deformed to the vehicle rear side, and the collision load can be effectively reduced. Can be transmitted to the front side member 12.

  Furthermore, in this embodiment, as shown in FIG. 2, the rear end portion 14A of the load transmission member 14 is provided at a position where it overlaps the power unit 18 in the vehicle front-rear direction. Accordingly, as shown in FIG. 6, when the load transmission member 14 bends the front side member 12 inward in the vehicle width direction at the time of a minute lap collision, the front side member 12 hits the power unit 18 and a part of the collision load is generated. It can be effectively transmitted to the power unit 18. As a result, a larger lateral force can be applied to the vehicle to move the passenger compartment (occupant space) away from the barrier W.

  The vehicle front structure 10 and the load transmission member 14 according to the present embodiment have been described based on the drawings, but the vehicle front structure 10 according to the present embodiment is not limited to the illustrated one. The design can be changed as appropriate without departing from the scope of the present invention. For example, the shape and size of the load transmission member 14 may be changed as appropriate.

DESCRIPTION OF SYMBOLS 10 Vehicle front part structure 12 Front side member 14 Load transmission member 14A Rear end part 18 Power unit 32 Main body part 34 Inclined wall part 40 Base plate 42 Load receiving plate (load receiving wall)
42B 2nd surface (surface of vehicle front side of load receiving wall)
62 4th reinforcing plate (reinforcing member)

Claims (5)

A main body disposed on both sides of the vehicle front portion in the vehicle width direction and attached to a vehicle width direction outer surface of a front side member extending in the vehicle front-rear direction and protruding outward from the front side member in the vehicle width direction When,
An inclined wall portion protruding from the front end portion of the main body portion and in the middle of the vehicle vertical direction, and inclined outward in the vehicle width direction from the vehicle front toward the vehicle rear;
A load transmission member having   The load transmitting member according to claim 1, wherein the main body is joined to the front side member at least at an upper part and a lower part. The main body includes a base plate disposed along the front side member and fastened to the front side member, and a collision load that protrudes outward in the vehicle width direction from the base plate and is input to the inclined wall portion. And a load receiving wall for receiving,
The load transmitting member according to claim 1 or 2, wherein a surface of the load receiving wall on the vehicle front side and the base plate are connected by a reinforcing member. A pair of front side members disposed on both sides of the vehicle front portion in the vehicle width direction and extending in the vehicle front-rear direction;
The load transmitting member according to any one of claims 1 to 3, attached to the front side member,
A vehicle front structure having: A power unit is disposed between the pair of front side members,
5. The vehicle front structure according to claim 4, wherein the load transmitting member is provided at a position where at least a rear end portion overlaps the power unit in the vehicle front-rear direction when viewed from the side in the vehicle width direction.