Side structure of the vehicle

Abstract

To obtain a vehicle side structure that can suppress the movement of the door impact beam towards the interior of the vehicle during a side collision. [Solution] The door impact beam 30 is disposed within the rear side door 20 and extends along the longitudinal direction of the vehicle. The rear frame 40 is made of die-cast material and includes a lower frame 42 which constitutes at least a part of the lower part of the rear side frame 14 that forms the rear side door opening 12, a vertical wall 50 which is erected from the lower frame 42 and positioned to overlap with the longitudinal end of the door impact beam 30 in a side view of the vehicle, and a rear wheel house 44 provided on the rear side of the lower frame 42.

Description

Technical Field

[0001] The present invention relates to a vehicle side structure.

Background Art

[0002] A structure having a door impact beam inside a side door on the vehicle side is known (see, for example, Patent Documents 1 and 2 below).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, there is room for improvement in suppressing the movement of the door impact beam toward the vehicle interior side during a side collision.

[0005] In consideration of the above facts, an object of the present invention is to obtain a vehicle side structure capable of suppressing the movement of the door impact beam toward the vehicle interior side during a side collision.

Means for Solving the Problems

[0006] The vehicle side structure according to the first aspect includes a door impact beam disposed in a rear side door that opens and closes a rear side door opening and extending along the vehicle front-rear direction, a lower side skeleton portion that constitutes at least a part of a lower portion of a rear side skeleton portion that forms the rear side door opening, a vertical wall portion erected from the lower side skeleton portion and disposed at a position overlapping a longitudinal end portion of the door impact beam in a side view of the vehicle, and a rear wheel house portion provided on a vehicle rear side of the lower side skeleton portion, and a die-cast rear skeleton body configured to include the above.

[0007] Furthermore, the concept of "extending along the longitudinal direction of the vehicle" includes not only cases where it extends along the longitudinal direction of the vehicle, but also cases where it extends inclined toward the rear of the vehicle towards one side in the vertical direction of the vehicle, but can still be understood as extending along the longitudinal direction of the vehicle.

[0008] According to the first embodiment of the vehicle side structure, the door impact beam is disposed within the rear side door that opens and closes the rear side door opening and extends along the longitudinal direction of the vehicle. The rear frame includes a lower side frame that constitutes at least a part of the lower part of the rear side frame that forms the rear side door opening, and a vertical wall that is erected from the lower side frame and positioned to overlap with the longitudinal end of the door impact beam in a side view of the vehicle. Therefore, when a collision load is applied to the rear side door during a side collision, the door impact beam, which moves toward the interior of the vehicle, can be supported by the vertical wall, and the collision load transmitted from the door impact beam to the vertical wall can be transmitted to the lower side frame. Here, the rear frame further includes a rear wheel house portion provided on the rear side of the lower side frame and is made of die-cast metal. Therefore, it is possible to efficiently transmit a portion of the collision load transmitted to the vertical wall portion during a side collision to the rear wheel house portion. This makes it possible to suppress the movement of the door impact beam toward the interior of the vehicle.

[0009] The vehicle side structure according to the second embodiment is configured as described in the first embodiment, wherein the longitudinal end of the door impact beam is fixed to the main body of the rear side door via a sheet metal bracket, and the vertical wall portion is positioned to overlap with at least a part of the bracket when viewed from the side of the vehicle.

[0010] According to the vehicle side structure of the second embodiment, when a collision load is applied to the rear side door during a side collision, the load can be transmitted to the vertical wall side via the bracket, making it possible to increase the area of ​​the part that transmits the load to the vertical wall side, thereby increasing the load transmission efficiency.

[0011] The vehicle side structure according to the third embodiment is, in the configuration described in the second embodiment, the bracket comprises a beam-corresponding portion including a first fixing portion that is positioned to overlap with a part of the door impact beam in a side view of the vehicle and fixed to the door impact beam, and a side portion including a second fixing portion that is continuous with the beam-corresponding portion and is positioned on both sides in a direction intersecting the longitudinal direction of the door impact beam in a side view of the vehicle and fixed to the main body of the rear side door, wherein the vertical wall portion has a portion that overlaps with the intersection of the center line along the longitudinal direction of the door impact beam and the line segment connecting the second fixing portion of one of the two side portions and the second fixing portion of the other side portion in a side view of the vehicle.

[0012] According to the third embodiment of the vehicle side structure, the beam-compatible portion of the bracket includes a first fixing portion that is positioned to overlap with a part of the door impact beam in a side view of the vehicle and is fixed to the door impact beam. The side portion of the bracket includes a second fixing portion that is continuous with the beam-compatible portion and is positioned on both sides in a direction intersecting the longitudinal direction of the door impact beam in a side view of the vehicle and is fixed to the main body of the rear side door. Here, the vertical wall portion has a portion that overlaps with the intersection of the center line along the longitudinal direction of the door impact beam and the line segment connecting the second fixing portion of one of the two side portions and the second fixing portion of the other side portion in a side view of the vehicle. As a result, in the event of a side collision, the vertical wall portion can indirectly suppress the area where stress is concentrated in the door impact beam, thereby suppressing excessive deformation of the door impact beam and enabling good transmission of the collision load.

[0013] The vehicle side structure according to the fourth embodiment is a configuration described in any one of the first to third embodiments, wherein a rib connecting the vertical wall portion and the lower side frame portion is provided on the inner side surface of the vertical wall portion in the vehicle width direction, and at least a portion of the rib is positioned to overlap with the longitudinal end of the door impact beam in a vehicle side view.

[0014] According to the vehicle side structure of the fourth embodiment, when a collision load is applied to the rear side door during a side collision and the door impact beam moving toward the interior of the vehicle is supported by the vertical wall, the vertical wall can be prevented from tilting toward the interior of the vehicle by the ribs. Therefore, the movement of the door impact beam toward the interior of the vehicle can be effectively suppressed during a side collision. [Effects of the Invention]

[0015] As described above, the vehicle side structure according to the present invention has the excellent effect of suppressing the movement of the door impact beam inward into the vehicle interior during a side collision. [Brief explanation of the drawing]

[0016] [Figure 1] This is a perspective view showing a rear skeletal structure applied to a vehicle side structure according to one embodiment. [Figure 2] This is a side view showing the positional relationship between the rear of the door impact beam and a part of the rear frame, as viewed through the main body of the side door. [Figure 3] This is a side view showing a portion of the rear side in the longitudinal direction of a vehicle to which a vehicle side structure according to one embodiment is applied. [Figure 4] This is an enlarged cross-sectional view taken along line 4-4 in Figure 3. [Modes for carrying out the invention]

[0017] A vehicle side structure according to one embodiment of the present invention will be described with reference to Figures 1 to 4. In Figures 1 to 4, arrows FR indicate the front side of the vehicle, arrows UP indicate the upper side of the vehicle, arrows W indicate the vehicle width direction, and arrows IN indicate the inside in the vehicle width direction.

[0018] (Configuration of the embodiment) Figure 3 shows a partial rear side in the vehicle longitudinal direction of a vehicle 10 to which the vehicle side structure according to the present embodiment is applied, in a side view. As shown in Figure 3, a rear side door opening 12 is formed on the rear side of the vehicle side portion 10S. The rear side door opening 12 communicates the outside of the vehicle compartment with the inside of the vehicle compartment and is configured to be opened and closed by a rear side door 20. Note that the outer surface on the outer side in the vehicle width direction of the vehicle 10 is constituted by an outer vehicle body panel 18.

[0019] The rear side door 20 is disposed on the vehicle side portion 10S and includes a side door main body portion 20H as a main body. In the present embodiment, as an example, the side door main body portion 20H is attached to a center pillar 16 that forms a part of the vehicle body by a door hinge (not shown) and is configured to be rotatable around the hinge pin of the door hinge. Note that in the present embodiment, the rear side door 20 constitutes a so-called swing-type side door, but it may also be a so-called slide-type side door.

[0020] The side door main body portion 20H includes a metal (steel as an example) door outer panel 22 that is disposed on the outer side in the vehicle width direction in the door closed state and constitutes a door outer plate portion. A metal (steel as an example) door inner panel 24 is disposed on the inner side in the vehicle width direction of the door outer panel 22 in the door closed state. Note that in Figure 3, a part of the door outer panel 22 is cut away to show the door inner panel 24. The door inner panel 24 constitutes a door inner plate portion of the side door main body portion 20H.

[0021] In the central part of the door inner panel 24, a bulging portion 24A that bulges toward the vehicle interior side and houses a window regulator (not shown) and the like is formed. Further, on both sides in the vehicle front-rear direction and on the lower side of the vehicle with respect to the bulging portion 24A in the door inner panel 24, shelf portions 24B arranged with the substantially vehicle width direction as the plate thickness direction are formed. The edges on both sides in the vehicle front-rear direction and on the lower side of the vehicle in the door inner panel 24 are joined to the edges on both sides in the vehicle front-rear direction and on the lower side of the vehicle in the door outer panel 22 by hemming. Thereby, the door outer panel 22 and the door inner panel 24 are integrated to form a side door body portion 20H having an upper edge portion open and in a bag shape.

[0022] Further, a door window frame 26 in a frame shape is provided on the upper side of the vehicle of the door outer panel 22. Inside the door window frame 26, a window glass (side glass) 28 that can protrude and retract from inside the side door body portion 20H is disposed so as to be able to move up and down.

[0023] Inside the side door body portion 20H of the rear side door 20, a door impact beam 30 extending along the vehicle front-rear direction is disposed. Note that the door impact beam 30 of the present embodiment is slightly inclined downward toward the rear side of the vehicle in a side view of the vehicle. The door impact beam 30 is a high-strength and high-rigidity member composed of a pipe-shaped member.

[0024] At the front end portion 30F, which is one end portion in the longitudinal direction of the door impact beam 30, a mounting bracket (also referred to as an "extension") 32 as a sheet metal bracket is fixed to the portion inside the vehicle width direction thereof by welding. The mounting bracket 32 is fixed to the portion on the vehicle front side of the shelf portion 24B of the door inner panel 24 by welding or bolt fastening or the like. That is, the front end portion 30F of the door impact beam 30 is fixed to the side door body portion 20H of the rear side door 20 via the mounting bracket 32.

[0025] Furthermore, a mounting bracket (also called an "extension") 34, which is a sheet metal bracket, is welded to the rear end 30R, which is the other end of the door impact beam 30 in the longitudinal direction, on its inner side in the vehicle width direction. The mounting bracket 34 is fixed to the rear side of the shelf portion 24B of the door inner panel 24 by welding or bolting. In other words, the rear end 30R of the door impact beam 30 is fixed to the side door body portion 20H of the rear side door 20 via the mounting bracket 34.

[0026] Here, the mounting bracket 34 will be described in more detail. The mounting bracket 34 includes a beam-compatible portion 34M positioned to overlap with a part of the door impact beam 30 in a side view of the vehicle. Figure 4 shows an enlarged cross-sectional view taken along line 4-4 in Figure 3. For convenience, in Figure 4, the portion of the vehicle body outer panel 18 that is positioned inward in the vehicle width direction relative to the rear side door 20 is not shown. As shown in Figure 4, the beam-compatible portion 34M is curved in an arc shape so that the surface facing the door impact beam 30 follows the outer circumferential surface of the door impact beam 30. This beam-compatible portion 34M includes a first fixing portion 34A that is fixed to the door impact beam 30. The range of the first fixing portion 34A in a side view of the vehicle is shown in Figure 2. As shown in Figures 3 and 4, the mounting bracket 34 includes side portions 34S and 34T that are continuous with the beam-compatible portion 34M and are positioned on both sides in a direction intersecting the longitudinal direction (axial direction) of the door impact beam 30 in a side view of the vehicle. The side sections 34S and 34T include second fixing sections 34B and 34C (see Figure 2 (in Figure 2, for convenience, the positions of the second fixing sections 34B and 34C are indicated by "×") which are fixed to the side door body section 20H of the rear side door 20).

[0027] As described above, by fixing the front end 30F and rear end 30R of the door impact beam 30 to the side door body 20H of the rear side door 20 shown in Figure 3, the rigidity of the side door body 20H of the rear side door 20 against loads in the longitudinal direction of the vehicle is improved.

[0028] A die-cast rear frame 40 is provided on the rear side of the vehicle side portion 10S. The rear frame 40 includes a lower frame portion 42 that constitutes a part (more specifically, the rear) of the lower part of the rear side frame portion 14 that forms the rear side door opening 12, and a rear wheel house portion 44 provided on the rear side of the lower frame portion 42.

[0029] Figure 1 shows a perspective view of the rear frame 40. Note that the detailed shape of the rear frame 40 in Figure 1 has been simplified as appropriate. As shown in Figure 1, the rear frame 40 is provided with lower frame sections 42 and rear wheelhouse sections 44 on both sides in the vehicle width direction. The lower frame section 42 extends along the vehicle's longitudinal direction. The rear wheelhouse section 44 is formed continuously with the rear end of the lower frame section 42. The rear frame 40 also includes a cross member (sometimes referred to as a cross member section) 46 that connects the left and right lower frame sections 42 in the vehicle width direction, and a connecting frame section 48 that connects the left and right rear wheelhouse sections 44 in the vehicle width direction. The cross member 46 is formed in a beam shape and is connected to the inside of the lower frame section 42 in the vehicle width direction, extending along the vehicle width direction. The connecting frame section 48 is formed in a frame shape when viewed from above, and the left and right side components 48S are continuous with the rear wheel house section 44.

[0030] Figure 2 shows the positional relationship between the rear of the door impact beam 30 and the mounting bracket 34 and a part of the rear frame 40, in a side view (viewed from the outside in the vehicle width direction) with the side door body 20H (see Figure 3) and the like visible through it. As shown in Figures 1 and 2, the rear frame 40 includes a vertical wall portion 50 erected from the lower frame portion 42. As shown in Figure 1, the thickness direction of the vertical wall portion 50 is set to align with the vehicle width direction. The lower end portion 50B of the vertical wall portion 50 is continuous with the lower frame portion 42, and the rear end portion 50R of the vertical wall portion 50 is continuous with the rear wheel house portion 44, for example. For convenience, on the left side in the vehicle width direction of Figure 1, the positions of the lower end portion 50B and the rear end portion 50R of the vertical wall portion 50 on the outer surface in the vehicle width direction are shown by dashed lines. The upper end surface 50A of the vertical wall portion 50 is, for example, inclined toward the front of the vehicle and toward the downward side of the vehicle.

[0031] As shown in Figure 2, the vertical wall portion 50 is positioned to overlap with the rear end portion 30R of the door impact beam 30 (one of the longitudinal ends of the door impact beam 30) when viewed from the side of the vehicle. The vertical wall portion 50 is also positioned to overlap with a part of the mounting bracket 34 (more than half of it in this embodiment) when viewed from the side of the vehicle. Furthermore, the vertical wall portion 50 has a portion that overlaps with the intersection point A of the center line 30X along the longitudinal direction of the door impact beam 30 and the line segment L connecting the second fixing portion 34B of one of the two side portions 34S and 34T of the mounting bracket 34 and the second fixing portion 34C of the other side portion 34T when viewed from the side of the vehicle.

[0032] As shown in Figures 1 and 2, ribs 52 are provided on the inner side surface of the vertical wall portion 50 in the vehicle width direction, connecting the vertical wall portion 50 and the lower frame portion 42. In this embodiment, multiple ribs 52 (two as an example) are formed on both the left and right sides of the rear frame body 40, arranged in the vehicle longitudinal direction. The thickness direction of the ribs 52 is set to align with the vehicle longitudinal direction. Note that, as viewed from the front of the vehicle, the ribs 52 are formed in a triangular shape as an example, but other shapes such as a square shape may also be used.

[0033] As shown in Figure 2, a portion of the rear rib 52 (52B) is positioned to overlap with the rear end 30R of the door impact beam 30 (one of the longitudinal ends of the door impact beam 30) when viewed from the side of the vehicle. As a modification of this embodiment, the height of the front part of the vertical wall 50 may be made higher than the height shown in Figure 2, and the vertical height of the front rib 52 (52A) may be increased so that a portion of the front rib 52 (52A) is positioned to overlap with the rear end 30R of the door impact beam 30 when viewed from the side of the vehicle.

[0034] The lower frame section 42, cross member 46, vertical wall section 50, rib 52, rear wheelhouse section 44, and connecting frame section 48 shown in Figure 1, as described above, are integrally formed by die-casting of a metal material (for example, a light metal material such as an aluminum alloy). The rear frame section 40 is a structure that can be grasped as a rear gigacast.

[0035] (Effects and mechanisms of the embodiment) Next, the operation and effects of this embodiment will be described.

[0036] In this embodiment, as shown in Figure 3, the door impact beam 30 is disposed within the rear side door 20 and extends along the longitudinal direction of the vehicle. The rear frame 40 includes a lower frame 42 which constitutes a part of the lower portion of the rear side frame 14 that forms the rear side door opening 12, and a vertical wall 50 which is erected from the lower frame 42 and positioned to overlap with the rear end 30R of the door impact beam 30 in a side view of the vehicle. Therefore, when a collision load F is applied to the rear side door 20 shown in Figure 4 during a side collision, the door impact beam 30, which moves toward the interior of the vehicle, can be supported by the vertical wall 50, and the collision load transmitted from the door impact beam 30 to the vertical wall 50 can be transmitted to the lower frame 42. Here, as shown in Figure 1, the rear frame 40 is further composed of a rear wheel house portion 44 provided on the rear side of the lower frame 42 and is made of die-cast material. Therefore, during a side collision, a portion of the collision load transmitted to the vertical wall section 50 can be efficiently transferred to the rear wheel house section 44. This makes it possible to suppress the movement of the door impact beam 30, as shown in Figure 3, etc., into the vehicle interior during a side collision.

[0037] Furthermore, in this embodiment, the rear end portion 30R of the door impact beam 30 is fixed to the side door body portion 20H of the rear side door 20 via a sheet metal mounting bracket 34, and as shown in Figure 2, the vertical wall portion 50 is positioned to overlap with a part (more than half in this embodiment) of the mounting bracket 34 when viewed from the side of the vehicle. As a result, when a collision load is applied to the rear side door 20 shown in Figure 3 during a side collision, the load can be transmitted to the vertical wall portion 50 side via the mounting bracket 34, making it possible to increase the area of ​​the portion that transmits the load to the vertical wall portion 50 side and improving the load transmission efficiency.

[0038] Furthermore, in this embodiment, as shown in Figure 2, the beam-compatible portion 34M of the mounting bracket 34 includes a first fixing portion 34A that is positioned to overlap with a part of the door impact beam 30 in a side view of the vehicle and is fixed to the door impact beam 30, and the side portions 34S and 34T of the mounting bracket 34 include second fixing portions 34B and 34C that are continuous with the beam-compatible portion 34M and are positioned on both sides in a direction intersecting the longitudinal direction of the door impact beam 30 in a side view of the vehicle and are fixed to the side door body portion 20H of the rear side door 20 (see Figure 3). Here, the vertical wall portion 50 has a portion that overlaps with the intersection A of the center line 30X along the longitudinal direction of the door impact beam 30 and the line segment L connecting the second fixing portion 34B of one of the two side portions 34S and 34T and the second fixing portion 34C of the other side portion 34T in a side view of the vehicle. As a result, during a side collision, the vertical wall portion 50 can indirectly restrain the area where stress concentrates in the door impact beam 30, thereby suppressing excessive deformation of the door impact beam 30 and enabling efficient transmission of the collision load.

[0039] Furthermore, in this embodiment, as shown in Figures 1, 2, and 4, a rib 52 is provided on the inner side of the vertical wall portion 50 in the vehicle width direction, connecting the vertical wall portion 50 and the lower side frame portion 42. As shown in Figure 2, a portion of the rear rib 52 (52B), which is one of the ribs 52, is positioned to overlap with the rear end portion 30R of the door impact beam 30 in a side view of the vehicle. Therefore, when a collision load is applied to the rear side door 20 (see Figure 3) during a side collision, and the door impact beam 30, which moves toward the interior of the vehicle, is supported by the vertical wall portion 50, the rib 52 can prevent the vertical wall portion 50 from tilting toward the interior of the vehicle.

[0040] As described above, the vehicle side structure according to this embodiment can suppress the movement of the door impact beam 30 towards the interior of the vehicle during a side collision.

[0041] Furthermore, in this embodiment, a vertical wall portion 50 is provided that is erected from the lower frame portion 42 shown in Figure 1. This prevents the front part of the lower frame portion 42 from rising up due to the deformation of the rear wheelhouse portion 44 during the cooling process when the rear frame body 40 is die-cast.

[0042] (Supplementary explanation of the embodiment) In the embodiments shown in Figures 1 to 4, the lower frame portion 42 constitutes a part of the lower part of the rear side frame portion 14 that forms the rear side door opening 12. However, as a modification of the above embodiments, the lower frame portion may constitute, for example, the entire lower part of the rear side frame portion (14) that forms the rear side door opening (12). In the modification in which the lower frame portion constitutes the entire lower part of the rear side frame portion (14) that forms the rear side door opening (12), a vertical wall portion may be provided that is erected from the front of the lower frame portion and positioned to overlap with the front end of the door impact beam when viewed from the side of the vehicle.

[0043] Furthermore, in the above embodiment, the vertical wall portion 50 of the rear frame 40 is positioned to overlap with a part of the mounting bracket 34 when viewed from the side of the vehicle. However, as a modification of the above embodiment, the vertical wall portion of the rear frame may be positioned to overlap with, for example, the entirety of the mounting bracket 34 when viewed from the side of the vehicle.

[0044] Furthermore, in the above embodiment, the front end 30F and rear end 30R, which are the longitudinal ends of the door impact beam 30, are fixed to the side door body 20H of the rear side door 20 via sheet metal mounting brackets 32 and 34. However, as a modification of the above embodiment, a configuration can also be adopted in which the longitudinal ends of the door impact beam are directly fixed to the side door body (20H) of the rear side door (20).

[0045] Furthermore, in the above embodiment, the vertical wall portion 50 has a portion that overlaps with the intersection A of the center line 30X along the longitudinal direction of the door impact beam 30 and the line segment L connecting the second fixing portion 34B of one of the two side portions 34S, 34T of the mounting bracket 34 and the second fixing portion 34C of the other side portion 34T, when viewed from the side of the vehicle. While this setting is preferred, as a modification of the above embodiment, it is also possible to adopt a setting in which the vertical wall portion (50) does not have a portion that overlaps with the intersection (A) when viewed from the side of the vehicle.

[0046] Furthermore, in the above embodiment, one side portion 34S of the mounting bracket 34 has one second fixing portion 34B and the other side portion 34T has one second fixing portion 34C, but there may be multiple second fixing portions on each side portion (34S, 34T).

[0047] Furthermore, in the above embodiment, two ribs 52 are provided on the inner side surface of the vertical wall portion 50 in the vehicle width direction, connecting the vertical wall portion 50 and the lower frame portion 42. However, as a modification of the above embodiment, a configuration in which one or more ribs (52) connecting the vertical wall portion (50) and the lower frame portion (42) are provided on the inner side surface of the vertical wall portion (50) in the vehicle width direction can also be adopted, as can a configuration in which no ribs (52) are provided.

[0048] Furthermore, in the above embodiment, a portion of the rear rib 52 (52B) is positioned to overlap with the rear end 30R of the door impact beam 30 when viewed from the side of the vehicle. However, as a modification of the above embodiment, a configuration can also be adopted in which the entire rib (52) is positioned to overlap with the longitudinal end (rear end 30R) of the door impact beam (30) when viewed from the side of the vehicle.

[0049] Furthermore, the above embodiments and the various modifications described above can be combined as appropriate.

[0050] Although an example of the present invention has been described above, the present invention is not limited to the above, and it is of course possible to implement it in various ways without departing from its spirit. [Explanation of Symbols]

[0051] 10S Vehicle side 12 Rear side door opening 14. Rear side frame 20 Rear side door 20H Side Door Body (Rear Side Door Body) 30 Door Impact Beam 30R Rear end of door impact beam (longitudinal end of door impact beam) 30X Door Impact Beam: Centerline along the longitudinal direction 34 Mounting bracket (bracket) 34A First fixed part 34B Second fixed part 34C Second fixed part 34M beam compatible section 34S Side section 34T Side section 40. Posterior skeletal structure 42 Lower skeletal section 44 Rear wheel arch area 50 Vertical wall section 52 Ribs A intersection L-shaped line segment

Claims

1. A door impact beam is installed inside the rear side door that opens and closes the rear side door opening and extends along the front-to-rear direction of the vehicle, A die-cast rear frame body comprising: a lower frame portion that constitutes at least a part of the lower part of the rear side frame portion that forms the rear side door opening; a vertical wall portion erected from the lower frame portion and positioned to overlap with the longitudinal end of the door impact beam in a side view of the vehicle; and a rear wheel house portion provided on the rear side of the lower frame portion; A vehicle side structure having the following characteristics.

2. The longitudinal end of the door impact beam is fixed to the main body of the rear side door via a sheet metal bracket. The vehicle side structure according to claim 1, wherein the vertical wall portion is positioned to overlap with at least a portion of the bracket when viewed from the side of the vehicle.

3. The bracket comprises a beam-compatible portion including a first fixing portion that is positioned to overlap a part of the door impact beam in a side view of the vehicle and fixed to the door impact beam, and a side portion including a second fixing portion that is continuous with the beam-compatible portion and is positioned on both sides in a direction intersecting the longitudinal direction of the door impact beam in a side view of the vehicle and fixed to the main body of the rear side door. The vehicle side structure according to claim 2, wherein the vertical wall portion has a portion that overlaps with the intersection of the center line along the longitudinal direction of the door impact beam and the line segment connecting the second fixing portion of one of the two side portions and the second fixing portion of the other side portion, in a vehicle side view.

4. On the inner side of the vertical wall portion in the vehicle width direction, a rib is provided that connects the vertical wall portion and the lower frame portion. The vehicle side structure according to any one of claims 1 to 3, wherein at least a portion of the rib is positioned to overlap with the longitudinal end of the door impact beam in a side view of the vehicle.

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