JP2019137271A - Vehicle front part structure - Google Patents

Abstract

To obtain a vehicle front part structure that is able to effectively prevent an object mounted on the vehicle from moving in a rearward direction of the vehicle in the event that collision load is applied to one side, in a vehicle width direction, of a vehicle front end part.SOLUTION: In this vehicle 10, in a case where, due to offset collision on the left side in a vehicle width direction, a rear cross part 22 of an Fr sus-men 20 is rotated around a mounting portion where a coupling part 32R on the right side in the vehicle width direction is mounted on a mounting part 34R, a first contact part 48L, on the left side in the vehicle width direction, of the rear cross part 22 is pressed back by an inclining face 54L of an inclining part 52L and rotated in a downward direction of the vehicle. Consequently, while an area where a second contact part 50R, on the right side in the vehicle width direction, of the rear cross part 22 faces an Fr cymene 12R is increased, the second contact part 50R comes into contact with the Fr cymene 12R.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle front structure including a side member and a suspension member.

  In the configuration disclosed in Patent Document 1 below, inclined portions are provided on the vehicle rear side of both sides of the suspension member in the vehicle width direction, and receiving portions are provided on the inner side in the vehicle width direction of these inclined portions. It has been. When the vehicle collides (offset collision) on one side in the vehicle width direction at the front end portion of the vehicle, one side portion of the suspension member in the vehicle width direction receives the receiving portion on one side in the vehicle width direction. It abuts against the stop surface. As a result, the movement of the suspension member on one side in the vehicle width direction due to the collision load to the vehicle rear side is suppressed.

  By the way, on the vehicle front side of the suspension member, a vehicle-mounted object such as an engine unit is arranged as an example, and when the vehicle collides, such a vehicle-mounted object is moved to the rear side of the vehicle and hits the suspension member. May be touched. In consideration of the movement of the vehicle load due to the offset collision as described above, there is still room for improvement in the structure for suppressing the movement of the suspension member to the rear side of the vehicle due to the collision load.

JP2015-003619A

  In consideration of the above-described facts, the present invention provides a vehicle front portion that can effectively suppress movement of a vehicle-mounted object toward the vehicle rear side when a collision load acts on one side in the vehicle width direction at the vehicle front side end portion. The purpose is to obtain a structure.

  The vehicle front portion structure according to claim 1 is provided with a pair of left and right side members arranged on both sides in the vehicle width direction with the vehicle front-rear direction as a longitudinal direction, and connecting portions on both sides in the vehicle width direction in the vehicle rear side portion. A suspension member, and a pair of left and right mounting portions that are provided on a skeleton member that constitutes a skeleton of a vehicle corresponding to each of the connecting portions, and the connecting portion is attached to connect the suspension member to the skeleton member; The frame is provided on the skeleton member on the vehicle rear side of the mounting portion, the vehicle width direction inner portion is disposed on the vehicle width direction inner side than the mounting portion, and the vehicle front surface faces the vehicle rear side toward the vehicle lower side. A pair of left and right inclined portions that are displaced slopes, and a vehicle on the sloped surface of the sloped portion provided on the vehicle front side of the sloped portion of the sloped portion and on the vehicle rear side of the connecting portion of the suspension member A first abutting portion disposed between the side end and the vehicle lower end, and provided on an outer side in the vehicle width direction than the connecting portion of the suspension member; And a second abutting portion disposed on the vehicle upper side than the vehicle lower end of the member.

  Next, the operation of the vehicle front structure according to claim 1 will be described by taking as an example a case where the left side portion in the vehicle width direction at the vehicle front side end collides (offset collision).

  In the vehicle front structure according to claim 1, for example, the left side portion in the vehicle width direction at the front end portion of the vehicle receives a collision load from the diagonally left side in front of the vehicle, whereby the connecting portion on the left side in the vehicle width direction of the suspension member. When the frame member is disengaged from the attachment portion on the left side in the vehicle width direction of the skeleton member, the left side portion in the vehicle width direction of the suspension member is displaced so as to rotate diagonally to the right rear side of the vehicle.

  Here, an inclined portion on the left side of the vehicle is provided on the skeleton member on the rear side of the mounting portion on the left side in the vehicle width direction. The vehicle width direction right side (vehicle width direction inner side) portion of the inclined portion on the left side of the vehicle is disposed on the vehicle width direction right side (vehicle width direction inner side) of the vehicle width direction left side mounting portion. When the left side portion of the suspension member in the vehicle width direction is displaced so as to rotate diagonally to the right rear of the vehicle, the left side portion of the suspension member is brought into contact with the slope of the inclined portion on the left side of the vehicle. The left portion in the direction is displaced to the vehicle lower side while being guided by the slope of the inclined portion on the left side of the vehicle.

  In this state, when the connecting portion on the right side of the vehicle of the suspension member is connected to the mounting portion on the right side of the vehicle of the skeleton member, the left portion in the vehicle width direction is displaced to the vehicle lower side than the connecting portion on the right side of the vehicle. As a result, the right portion of the suspension member in the vehicle width direction relative to the connecting portion on the right side of the vehicle is displaced to the upper side of the vehicle around the connecting portion on the right side of the vehicle. Moreover, in this state, the suspension member is displaced diagonally to the right rear side of the vehicle.

  Therefore, in this state, the second contact portion on the right side of the vehicle in the suspension member is displaced rightward in the vehicle width direction (that is, outside in the vehicle width direction) while being displaced upward. Here, the second contact portion is disposed on the vehicle upper side with respect to the vehicle lower side end of the side member. For this reason, the second contact portion on the other side in the vehicle width direction of the suspension member is displaced as described above, so that the second contact portion on the other side in the vehicle width direction becomes the second contact portion on the other side in the vehicle width direction. Collide with side member. As a result, for example, the displacement of the suspension member to the diagonally right rear side of the vehicle is suppressed, so that the movement of the vehicle-mounted object can be suppressed to the rear side of the vehicle.

  In the above description, the left side portion in the vehicle width direction at the front end portion of the vehicle has been described as receiving a collision load from the diagonally left front side of the vehicle, but the right side portion in the vehicle width direction at the front end portion of the vehicle is When a collision load from an oblique right side is received, the left and right in the vehicle width direction are reversed in the above description.

  As described above, in the vehicle front structure according to the first aspect, when a collision load acts on one side in the vehicle width direction at the front end of the vehicle, the vehicle load is moved toward the rear of the vehicle. It can be effectively suppressed.

It is the bottom view which looked at the vehicle to which the vehicle front part structure which concerns on one embodiment of this invention was applied from the vehicle lower side. FIG. 2 is a bottom view corresponding to FIG. 1 with a front suspension member removed. It is the side view which looked at the front side member, front suspension member, etc. of the vehicle width direction left side from the vehicle width direction center side. It is the expansion perspective view which looked at the connection part of the vehicle left side of a front suspension member, and its peripheral structure from the vehicle lower side diagonally left behind the vehicle. It is the expansion perspective view which looked at the connection part of the vehicle left side of a front suspension member from the vehicle upper side of the vehicle front diagonal left side.

  Next, an embodiment of the present invention will be described with reference to FIGS. In each figure, arrow FR indicates the front side (vehicle front side) of vehicle 10 to which the vehicle front structure according to the embodiment of the present invention is applied, arrow OUT indicates the vehicle width direction outer side, and arrow UP Indicates the upper side of the vehicle. Further, in the description of the present embodiment, regarding the configuration that is arranged on both sides in the vehicle width direction and makes a pair with each other, “L” is added to the end of the code that is arranged on the left side in the vehicle width direction. “R” is appended to the end of the code arranged on the right side in the width direction.

<Configuration of the present embodiment>
As shown in FIG. 2, the vehicle 10 includes a pair of left and right front side members 12 </ b> L and 12 </ b> R (hereinafter, “front side members” are abbreviated as “Fr cycle members”). Provided). The longitudinal direction of the Fr cyclens 12L, 12R is generally the vehicle front-rear direction, the Fr cyclen 12L is disposed along the left end of the vehicle 10 in the vehicle width direction, and the Fr cyclen 12R is the right side in the vehicle width direction of the vehicle 10. Arranged along the edge. A cross-sectional shape obtained by cutting the Fr cyclens 12L and 12R in a direction orthogonal to the longitudinal direction of the Fr cyclens 12L and 12R is, for example, a substantially rectangular closed cross-sectional shape.

  As shown in FIG. 3, a kick portion 14 is formed at each longitudinal intermediate portion of the Fr cyclens 12 </ b> L and 12 </ b> R (not shown with respect to the Fr cyclen 12 on the right side in the vehicle width direction). The longitudinal direction of the kick portion 14 is inclined to the vehicle lower side with respect to the vehicle rear side. For this reason, the vehicle rear side part from the kick part 14 of Fr cyclen 12L, 12R is arrange | positioned below the vehicle rather than the vehicle front side part from the kick part 14 of Fr cyclen 12L, 12R. The vehicle rear side portions of these Fr cyclens 12L and 12R are arranged on the vehicle lower side of the floor panel 16 of the vehicle 10, and the floor panel 16 is fixed to the vehicle rear side portions of both the Fr cyclens 12L and 12R by welding or the like. Has been.

  A panel member 18 is provided on the vehicle lower side of the vehicle front side portion of the floor panel 16. Both end portions in the vehicle width direction of the outer peripheral portion of the panel member 18 are fixed to the kick portions 14 of the two Fr siemens 12L and 12R by welding or the like, and the other portion of the outer peripheral portion of the panel member 18 is fixed to both the Fr siemens 12L. , 12R is fixed to the floor panel 16 or the like on the inner side in the vehicle width direction by welding or the like.

  On the other hand, as shown in FIG. 1, the vehicle 10 includes a front suspension member 20 (hereinafter, “front suspension member” is abbreviated as “Fr suspension”) as a suspension member. The Fr suspension 20 includes a rear cross portion 22. As shown in FIGS. 1 and 3, the first connecting member 24 </ b> L is provided on the left side in the vehicle width direction of the front portion of the rear cross portion 22 in the vehicle width direction. The vehicle lower end portion of the first connecting member 24L is connected to the rear cross portion 22. The first connecting member 24L extends obliquely upward to the left of the vehicle, and the vehicle upper end of the first connecting member 24L is connected to the front side of the vehicle relative to the kick portion 14 of the Fr cyclen 12L on the left side in the vehicle width direction. ing.

  On the other hand, as shown in FIG. 1, the first connecting member 24 </ b> R is provided on the right side in the vehicle width direction of the vehicle front side portion of the rear cross portion 22. The vehicle lower end portion of the first connecting member 24R is connected to the rear cross portion 22. Further, the first connecting member 24R extends obliquely upward to the right of the vehicle, and the vehicle upper end of the first connecting member 24R is connected to the front side of the vehicle relative to the kick portion 14 of the Fr cyclen 12R on the right side in the vehicle width direction. ing.

  Further, the rear cross portion 22 is provided with a pair of left and right side rail portions 26L and 26R. The side rail portion 26L on the left side in the vehicle width direction extends from the left end portion in the vehicle width direction at the vehicle front side end portion of the rear cross portion 22 to the left front side of the vehicle (that is, a direction inclined outward in the vehicle width direction with respect to the vehicle front side). ing. Further, the vehicle longitudinal direction intermediate portion (longitudinal direction intermediate portion) of the side rail portion 26L extends obliquely upward on the front side of the vehicle. For this reason, the vehicle front side end of the side rail portion 26L is the vehicle rear side of the side rail portion 26L. It is arranged above the end of the vehicle. Further, as shown in FIG. 3, the vehicle front side end portion of the side rail portion 26 </ b> L is connected to the Fr cyclen 12 </ b> L on the left side in the vehicle width direction via the second connection member 28 on the left side in the vehicle width direction.

  On the other hand, as shown in FIG. 1, the side rail portion 26R on the right side in the vehicle width direction has an oblique front right side of the vehicle (that is, on the front side of the vehicle) from the right end portion in the vehicle width direction at the front end portion of the rear cross portion 22. (In a direction inclined to the outside in the vehicle width direction). Moreover, the vehicle longitudinal direction intermediate part (longitudinal direction intermediate part) of the side rail part 26R extends obliquely upward in the front of the vehicle. Therefore, the vehicle front side end of the side rail part 26R is the vehicle rear side of the side rail part 26R. It is arranged above the end of the vehicle. Furthermore, although detailed illustration is omitted, the vehicle front side end portion of the side rail portion 26R is connected to the Fr cyclen 12R on the right side in the vehicle width direction via a second connection member (not shown) on the right side in the vehicle width direction. .

  As shown in FIG. 1, a vehicle drive device 30, which is an aspect of a vehicle mounted object, is disposed between the side rail portions 26 </ b> L and 26 </ b> R, and the vehicle drive device 30 is interposed via a mount member (not shown). Are supported by the Fr cyclens 12L and 12R. The vehicle drive device 30 is configured to include a drive source such as an engine or a motor, for example, and the vehicle 10 is transmitted by the driving force output from the vehicle drive device 30 to the drive wheels of the vehicle 10. Can run.

  On the other hand, as shown in FIG. 1, the rear cross portion 22 of the Fr suspension 20 is provided with a pair of left and right connecting portions 32 </ b> L and 32 </ b> R. The connecting portions 32L and 32R are formed in a flat plate shape, and the thickness direction of the connecting portions 32L and 32R is generally the vehicle vertical direction. The connecting portion 32L on the left side in the vehicle width direction extends from the left end portion in the vehicle width direction at the rear side end of the rear cross portion 22 to the rear side of the vehicle, and is closer to the vehicle than the kick portion 14 of the Fr cyclen 12L on the left side in the vehicle width direction. It is arranged on the right side in the width direction. On the other hand, the connecting portion 32R on the right side in the vehicle width direction extends from the end portion on the right side in the vehicle width direction at the rear side end of the rear cross portion 22 to the rear side of the vehicle, and kicks the Fr cyclen 12R on the right side in the vehicle width direction. It is arrange | positioned rather than the part 14 at the vehicle width direction left side.

  These connecting portions 32L and 32R are opposed to the panel member 18 on the vehicle lower side of a part of the panel member 18 described above. Portions of the panel member 18 that face the connecting portions 32L and 32R in the vehicle vertical direction are mounting portions 34L and 34R. As shown in FIGS. 2 and 4, the attachment portions 34 </ b> L and 34 </ b> R include an attachment base 36 (the illustration of the attachment portion 34 </ b> R side is omitted in FIG. 4). The mounting base 36 has a flat plate shape, and the thickness direction of the mounting base 36 is generally the vehicle vertical direction. An upper hole 38 that penetrates the mounting base 36 in the thickness direction is formed in the mounting base 36. Further, a weld nut (not shown) is provided on the vehicle upper side of the mounting base 36. The weld nut is disposed coaxially with the upper hole 38 of the mounting base 36 and is integrally fixed to the mounting base 36 by welding or the like.

  As shown in FIG. 4, a bush 40 is provided between the mounting base 36 of the mounting portions 34L, 34R and the connecting portions 32L, 32R of the Fr suspension 20 (the mounting portion 34R side is not shown). . The bush 40 is formed in a cylindrical shape, and is arranged coaxially with the upper hole 38 (see FIG. 2) of the mounting base 36 and the weld nut. The vehicle upper end of the bush 40 is in contact with the mounting base 36, and the vehicle lower end of the bush 40 is in contact with the connecting portions 32L and 32R. Further, as shown in FIG. 5, the lower holes 42 are provided in the connecting portions 32L and 32R corresponding to the upper hole 38 and the weld nut of the mounting base 36 (in FIG. (The illustration on the 32R side is omitted).

  The lower holes 42 of the connecting portions 32L and 32R are formed coaxially with the upper holes 38 and the weld nuts of the mounting bases 36 of the mounting portions 34L and 34R, and the bolts 44 are below the connecting portions 32L and 32R. It penetrates the upper hole 38 of the mounting base 36 of the hole 42, the bush 40, and the mounting portions 34L and 34R. The bolts 44 are screwed into the weld nuts of the mounting base 36, whereby the connecting portions 32 </ b> L and 32 </ b> R of the Fr suspension 20 are fastened and fixed to the mounting portions 34 </ b> L and 34 </ b> R of the panel member 18.

  On the other hand, as shown in FIGS. 1 and 4, a wall portion 46 is provided in the rear cross portion 22 of the Fr suspension 20. The wall portion 46 is disposed along the vehicle rear side end portion of the rear cross portion 22. A part of the left part of the wall 46 in the vehicle width direction is a first contact part 48L, and a part of the right part of the wall 46 in the vehicle width direction is a first contact part 48R. On the vehicle lower side (the connecting portions 32L and 32R side) of the first contact portions 48L and 48R with respect to the vehicle vertical direction intermediate portion, the vehicle rear side surfaces of the first contact portions 48L and 48R are generally in the vehicle vertical direction. And parallel. On the other hand, the vehicle rear side surface of the first abutting portions 48L and 48R on the vehicle upper side (the side opposite to the connecting portions 32L and 32R) of the first abutting portions 48L and 48R in the vehicle vertical direction intermediate portion is The slope is inclined obliquely downward to the rear of the vehicle and displaced toward the front of the vehicle toward the upper side of the vehicle.

  On the other hand, the left side portion in the vehicle width direction (the outer side portion in the vehicle width direction) of the wall portion 46 than the first contact portion 48L is the second contact portion 50L. The vehicle front side portion of the left side surface (vehicle width direction outer side surface) of the second contact portion 50L is displaced to the vehicle width direction right side (vehicle width direction inner side) with respect to the vehicle rear side portion. The left side surface in the vehicle width direction of the contact portion 50L is inclined obliquely to the right rear side of the vehicle. The vehicle upper end of the second contact portion 50L is located above the vehicle lower end of the portion of the Fr cycle 12L on the left side of the vehicle that is disposed on the left side in the vehicle width direction (outside in the vehicle width direction) of the second contact portion 50L. Is arranged. Accordingly, a certain range in the vehicle vertical direction including the vehicle upper end of the second contact portion 50L is the vehicle width direction left side (vehicle width direction outer side) of the second contact portion 50L in the Fr cycle 12L when viewed in the vehicle width direction. ) Overlaps with the part arranged.

  On the other hand, the right side portion in the vehicle width direction (outer portion in the vehicle width direction) than the first contact portion 48R of the wall portion 46 is a second contact portion 50R. The vehicle front side portion of the second contact portion 50R in the vehicle width direction right side surface (vehicle width direction outer side surface) is displaced to the vehicle width direction left side (vehicle width direction inner side) with respect to the vehicle rear side portion. The right side surface in the vehicle width direction of the contact portion 50R is inclined obliquely to the left rear side of the vehicle. The vehicle upper end of the second contact portion 50R is above the vehicle lower end of the portion of the Fr cyclen 12R on the right side of the vehicle that is disposed on the vehicle width direction right side (vehicle width direction outer side) of the second contact portion 50R. Is arranged. Therefore, a certain range in the vehicle vertical direction including the vehicle upper end of the second contact portion 50R is the vehicle width direction right side (vehicle width direction outer side) of the second contact portion 50R in the Fr cycle 12R when viewed in the vehicle width direction. ) Overlaps with the part arranged.

  On the other hand, as shown in FIG. 2, the panel member 18 described above includes a pair of left and right inclined portions 52L and 52R. These inclined portions 52L and 52R are formed in a box shape opened to the vehicle upper side by deforming the panel member 18 so that a part of the panel member 18 swells to the vehicle lower side. Each inclined portion 52L, 52R includes inclined surfaces 54L, 54R. The inclined surfaces 54L and 54R are the outer surfaces of the front walls of the inclined portions 52L and 52R, and the lower vehicle ends of the inclined surfaces 54L and 54R are directed to the vehicle rear side with respect to the upper vehicle ends of the inclined surfaces 54L and 54R. The inclined surfaces 54L and 54R are inclined obliquely downward to the rear of the vehicle.

  The left inclined portion 52L in the vehicle width direction is provided on the vehicle rear side of the first contact portion 48L of the connecting portion 32L on the left side in the vehicle width direction of the Fr suspension 20. The right end in the vehicle width direction of the slope 54L of the inclined portion 52L is disposed on the right side in the vehicle width direction (that is, the inner side in the vehicle width direction) than the attachment portion 34L on the left side in the vehicle width direction. The right end in the vehicle width direction of the inclined surface 54L of the inclined portion 52L is disposed on the right side in the vehicle width direction (that is, the inner side in the vehicle width direction) with respect to the central axis of the bolt 44 that fastens the connecting portion 32L and the attachment portion 34L. Yes. Furthermore, the left side in the vehicle width direction when the connecting portion 32L rotates to the right rear side of the vehicle around the center axis of the bolt 44 that fastens the connecting portion 32R on the right side in the vehicle width direction and the mounting portion 34R on the right side in the vehicle width direction. An inclined surface 54L of the inclined portion 52L on the left side in the vehicle width direction is disposed on the rotation locus of the first contact portion 48L of the connecting portion 32L.

  In contrast, the inclined portion 52R on the right side in the vehicle width direction is provided on the vehicle rear side of the first abutting portion 48R of the connecting portion 32R on the right side in the vehicle width direction of the Fr suspension 20. The left end in the vehicle width direction of the slope 54R of the inclined portion 52R is disposed on the left side in the vehicle width direction (that is, the inner side in the vehicle width direction) than the attachment portion 34R on the right side in the vehicle width direction. Further, the left end in the vehicle width direction of the inclined surface 54R of the inclined portion 52R is disposed on the left side in the vehicle width direction (that is, the inner side in the vehicle width direction) with respect to the central axis of the bolt 44 that fastens the coupling portion 32R and the attachment portion 34R. Yes. Further, the right side in the vehicle width direction when the connecting part 32R rotates obliquely to the left rear side of the vehicle around the center axis of the bolt 44 that fastens the connecting part 32L on the left side in the vehicle width direction and the mounting part 34L on the left side in the vehicle width direction. An inclined surface 54R of the inclined portion 52R on the right side in the vehicle width direction is disposed on the rotation locus of the first contact portion 48R of the connecting portion 32R.

<Operation and effect of the present embodiment>
Next, when the collision load F1 from the front left side of the vehicle acts on the left side portion in the vehicle width direction at the front end of the vehicle 10 to which the front vehicle structure according to the present embodiment is applied, that is, the vehicle 10 Will be described when an offset collision occurs on the left side in the vehicle width direction. In addition, since the case where the vehicle 10 has an offset collision on the right side in the vehicle width direction can be explained by reversing the left and right in the vehicle width direction in the following description, the details when the vehicle 10 has an offset collision on the right side in the vehicle width direction are described. Is omitted.

  When a collision load F1 (see FIGS. 1 and 3) from the front left side of the vehicle 10 acts on the left side portion in the vehicle width direction at the front end portion of the vehicle 10, a load F11 (FIG. 3) that is a part of the collision load F1. Is applied to the front side end of the side rail portion 26 </ b> L on the left side in the vehicle width direction of the Fr suspension 20. As a result, the connection between the rear cross portion 22 of the Fr suspension 20 and the Fr cycle 12L by the first connection member 24L is canceled, and the connection between the side rail portion 26L of the Fr suspension 20 and the Fr cycle 12L by the second connection member 28 is achieved. Is resolved.

  In this state, when the load F11 further acts on the side rail portion 26L, the side rail portion 26L is moved so that the longitudinal intermediate portion of the side rail portion 26L is displaced obliquely downward (in the direction of arrow B1 in FIG. 3). Bend. Thereby, the movement stroke of the side rail part 26L when the load F11 acts on the side rail part 26L (that is, the Fr suspension 20) can be secured. Further, as described above, the side rail portion 26L is bent, so that a part of the load F11 and thus a part of the collision load F1 are absorbed.

  From this state, when the Fr suspension 20 is further pressed to the vehicle rear side by the load F11 acting on the side rail portion 26L, the connecting portion 32L on the left side in the vehicle width direction of the Fr suspension 20 and the left side in the vehicle width direction of the panel member 18 are displayed. At least one of the attachment portion 34L is broken by the bolt 44, and the connecting portion 32L is detached from the attachment portion 34L. If it will be in this state, the rear cross part 22 of Fr suspension 20 will move to the vehicle rear side with the load F11 which acted on the side rail part 26L.

  In this state, if the mounting of the connecting portion 32R on the right side in the vehicle width direction of the Fr suspension 20 by the bolt 44 to the mounting portion 34R on the right side in the vehicle width direction is maintained, the Fr suspension 20 is connected to the connecting portion 32R. Is rotated in the direction of arrow C1 in FIG. 1 around a bolt 44 that is attached to the attachment portion 34R. As a result, the connecting portion 32L on the left side in the vehicle width direction of the rear cross portion 22 is rotated obliquely to the right rear side (the arrow C1 direction side in FIG. 1).

  Here, a first abutting portion 48L is formed on the vehicle upper side of the vehicle rear side portion of the connecting portion 32L of the rear cross portion 22, and the vehicle of the panel member 18 is disposed on the vehicle rear side of the first abutting portion 48. An inclined portion 52L on the left side in the width direction is provided. Further, the slope 54L of the inclined portion 52L is disposed at the right end in the vehicle width direction on the right side in the vehicle width direction (that is, on the inner side in the vehicle width direction) than the attachment portion 34L on the left side in the vehicle width direction.

  For this reason, as described above, when the connecting portion 32L on the left side in the vehicle width direction of the rear cross portion 22 is rotated obliquely to the rear right side (arrow C1 direction side in FIG. 1), the rear cross portion 22 on the left side in the vehicle width direction. The first contact portion 48L is in contact with the inclined surface 54L of the inclined portion 52L on the left side in the vehicle width direction. In this state, when the connecting portion 32L on the left side in the vehicle width direction of the rear cross portion 22 is further rotated obliquely to the right rear of the vehicle, the first contact portion 48L is pushed back downward by the inclined surface 54L of the inclined portion 52L. . As a result, the vehicle width direction left side portion of the rear cross portion 22 in the vehicle rear side portion is moved to the vehicle rear obliquely lower side while being rotated to the vehicle rear oblique right side.

  As a result, the left side portion in the vehicle width direction of the rear portion of the rear cross portion 22 tends to move to the vehicle lower side than the floor panel 16 of the vehicle 10. For this reason, it is possible to suppress the left side portion of the rear cross portion 22 in the vehicle rear side portion from entering the vehicle 10. Further, as described above, the left side portion in the vehicle width direction of the rear side portion of the rear cross portion 22 is turned to the rear right side (arrow C1 direction side in FIG. 1), for example, Fr on the left side in the vehicle width direction. The deformation of the Fr cyclen 12L is increased such that the vehicle front-rear direction intermediate portion of the cyclen 12L is generally displaced toward the vehicle upper side (the direction of arrow B2 in FIG. 3). By such deformation of the Fr cyclen 12L, a part of the load F12 transmitted to the Fr cyclen 12L among the collision load F1 can be effectively absorbed.

  Further, as described above, when the vehicle width direction left side portion of the rear cross portion 22 in the vehicle rear side portion is rotated to the vehicle rear right side (arrow C1 direction side in FIG. 1), the rear cross portion 22 on the right side in the vehicle width direction. In the connecting portion 32R, a portion on the rear side of the vehicle with respect to the bolt 44 that connects the connecting portion 32R and the attaching portion 34R is rotated obliquely to the front right side of the vehicle (arrow C2 direction side in FIG. 1). As a result, the second contact portion 50R on the right side of the vehicle of the rear cross portion 22 is rotated obliquely to the front right side of the vehicle, and the second contact portion 50R approaches the Fr cycler 12R on the right side in the vehicle width direction.

  Further, in this state, the first contact portion 48L on the left side in the vehicle width direction is pushed back by the inclined surface 54L of the inclined portion 52L, thereby moving the first contact portion 48L to the lower side of the vehicle. As described above, in this state, the connection between the connection portion 32R and the attachment portion 34R by the bolt 44 is maintained. For this reason, the movement of the first contact portion 48L to the vehicle lower side is rotation about the connection portion between the connection portion 32R and the attachment portion 34R. As a result, in the rear cross portion 22 of the Fr suspension 20, the right portion in the vehicle width direction of the connecting portion between the connecting portion 32R and the attachment portion 34R is rotated to the upper side of the vehicle.

  Here, the vehicle upper end of the second contact portion 50R of the rear cross portion 22 of the Fr suspension 20 is disposed on the vehicle width direction right side (vehicle width direction outer side) of the second contact portion 50R in the Fr cycle 12R on the right side of the vehicle. It is arrange | positioned at the vehicle upper side rather than the vehicle lower end of a part. Therefore, a certain range in the vehicle vertical direction including the vehicle upper end of the second contact portion 50R is the vehicle width direction right side (vehicle width direction outer side) of the second contact portion 50R in the Fr cycle 12R when viewed in the vehicle width direction. ). For this reason, when the rear cross portion 22 is turned to the vehicle upper side of the vehicle crosswise direction portion of the rear cross portion 22 with respect to the connection portion between the connection portion 32R and the attachment portion 34R, the second contact portion 50R and the Fr cycle 12R The overlapping range with the portion arranged on the right side in the vehicle width direction (outside in the vehicle width direction) of the contact portion 50R is increased.

  In this way, the second contact portion 50R is brought into contact with and brought into contact with the Fr cyclen 12R while the overlapping range of the second contact portion 50R and the Fr cyclen 12R is increased. Thereby, the further rotation of the rear cross part 22 of the Fr suspension 20 is suppressed.

  Here, for example, when the vehicle drive device 30 is moved to the rear side of the vehicle (including the right rear side of the vehicle) by the collision load F1, further rotation of the rear cross portion 22 is suppressed as described above. Thus, the rear cross portion 22 can suppress the movement of the vehicle drive device 30 toward the vehicle rear side (including the vehicle rear oblique right side). Thereby, for example, the approach and entry of the vehicle drive device 30 into the room of the vehicle 10 can be suppressed.

  Further, as described above, the second abutting portion 50R is abutted against the Fr cyclen 12R, whereby the Fr cyclen 12R is deformed, so that a part of the collision load F1 can be absorbed. As described above, in the present embodiment, when the collision load F1 from the front left side of the vehicle acts on the left side portion in the vehicle width direction at the front end of the vehicle 10, the side opposite to the side on which the collision load F1 has acted is applied. A part of the collision load F1 can be absorbed by causing the Fr cyclen 12R on the right side in the vehicle width direction to be deformed. For this reason, the collision load F1 can be absorbed effectively.

  Moreover, since the collision load F1 can be absorbed by the deformation of the Fr cyclen 12R on the side opposite to the side on which the collision load F1 is applied, the collision loads F1 other than the two Fr cyclens 12L and 12R, and the two Fr cyclens 12L and 12R It is possible to suppress the increase in thickness and strength of the transmitted skeletal member and reinforcing member. As a result, it is possible to reduce the weight of the skeleton member and the reinforcing member including both the Fr cyclens 12L and 12R, and thus, it is possible to reduce the weight of the vehicle 10.

  Further, since the collision load F1 can be absorbed by the deformation of the Fr cyclen 12R opposite to the side on which the collision load F1 is applied, even if the deformation amount of the Fr cyclen 12L on which the collision load F1 is applied is small, the collision load F1. Can be increased. Accordingly, it is possible to suppress an increase in the travel stroke after the collision body that applies the collision load F <b> 1 to the vehicle 10 collides with the vehicle 10.

  On the other hand, for example, when the vehicle 10 undergoes a frontal collision, both Fr cycles 12L and 12R by the first connecting members 24L and 24R and the second connecting member 28 on both sides in the vehicle width direction, and both side rail portions of the Fr suspension 20 26L and 26R are canceled, and the connection between the two connecting portions 32L and 32R of the rear cross portion 22 of the Fr suspension 20 and the mounting portions 34 of the panel member 18 is canceled. In this state, when the Fr suspension 20 is moved to the rear side of the vehicle, the first contact portions 48L and 48R of the rear cross portion 22 are guided to the slopes 54L and 54R of the both inclined portions 52L and 52R of the panel member 18. Then, it is moved diagonally downward after the vehicle. Thereby, even if the Fr suspension 20 is largely moved to the rear side of the vehicle due to the collision load at the time of the frontal collision, the intrusion of the Fr suspension 20 into the vehicle 10 can be suppressed.

  Further, in this way, the Fr suspension 20 can be largely moved to the vehicle rear side by the collision load at the time of the frontal collision. For this reason, the deformation stroke to the vehicle rear side of both Fr cyclen 12L, 12R can be enlarged, and the deformation of both Fr cyclen 12L, 12R due to the collision load at the time of frontal collision can be increased. Thereby, the absorption amount of the collision load at the time of the frontal collision can be increased.

  In the present embodiment, the attachment portions 34L and 34R are provided on the panel member 18, and the attachment portion 34L and the attachment portion 34R are integrated as a part of the panel member 18. However, each of the attachment portion 34L and the attachment portion 34R may be configured separately.

  Further, in the present embodiment, the inclined portions 52L and 52R are provided in the panel member 18, and the inclined portion 52L and the inclined portion 52R are integrated as a part of the panel member 18. However, each of the inclined portion 52L and the inclined portion 52R may be configured separately.

  Further, in the present embodiment, the attachment portions 34L and 34R and the inclined portions 52L and 52R are part of the panel member 18, and the panel member 18 is a Fr cyclen 12L that is an aspect of the skeleton member of the vehicle 10. The configuration was linked to 12R. However, the attachment portions 34L and 34R and the inclined portions 52L and 52R may be provided on the skeleton member of the vehicle 10 other than the Fr cyclens 12L and 12R, or one of the skeleton members of the vehicle 10 including the Fr cyclens 12L and 12R. The structure formed in a skeleton member as a part may be sufficient.

  Further, in the present embodiment, the vehicle mounted device disposed on the vehicle front side of the rear cross portion 22 of the Fr suspension 20 is the vehicle drive device 30. However, the vehicle-mounted item may be, for example, a battery or a storage tank for coolant or the like, and the vehicle-mounted item is not limited to the vehicle drive device 30 and can be widely applied. .

10 Vehicle 12L, 12R Front side member (side member, frame member)
20 Front suspension member (suspension member)
30 Vehicle drive device (vehicle-mounted item)
32L, 32R Connecting portion 34L, 34R Mounting portion 48L, 48R First contact portion 50L, 50R Second contact portion 52L, 52R Inclined portion 54L, 54R Slope

Claims (1)

A pair of left and right side members arranged on both sides in the vehicle width direction with the longitudinal direction of the vehicle as a longitudinal direction;
Suspension members provided with connecting portions on both sides in the vehicle width direction in the rear portion of the vehicle,
A pair of left and right mounting portions that are provided on a skeleton member that constitutes a skeleton of a vehicle corresponding to each of the connecting portions, and the connecting portion is attached to connect the suspension member to the skeleton member;
The frame is provided on the skeleton member on the vehicle rear side of the mounting portion, the vehicle width direction inner portion is disposed on the vehicle width direction inner side than the mounting portion, and the vehicle front surface faces the vehicle rear side toward the vehicle lower side. A pair of left and right inclined portions that are displaced slopes;
The suspension member is provided on the vehicle rear side of the connection portion of the suspension member, and is disposed between the vehicle upper side and the vehicle lower side end of the inclined surface of the inclined portion on the vehicle front side of the inclined surface of the inclined portion. A contact portion;
A second abutting portion provided on the vehicle width direction outer side than the coupling portion of the suspension member, and disposed on the vehicle upper side with respect to the vehicle lower side end of the side member on the vehicle width inner side of the side member;
A vehicle front structure comprising: