Vehicle rear part structure

Abstract

To effectively absorb an impact load from a vehicle rear side, in a vehicle where a side member and a reflector are arranged superposed on each other, in a vehicle rearward view.SOLUTION: A vehicle rear part structure includes: a first crash can 30 extending in a front and rear direction; a second crash can 40 which is arranged on the inside at a rear part side of the first crash can 30, and extends in the front and rear direction; a reflector 25 arranged so that a part is superposed on the first crash can 30, when viewed from a rear side; and beams 51, 52 arranged between the crash cans 30, 40. A rear end of the second crash can 40 is arranged on a rear part side beyond the reflector 25, and the reflector 25 and the beams 51, 52 are arranged at a distance from each other.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] Generally, a reflector is provided on the outer side of the rear of the vehicle in the vehicle width direction. The reflector is disposed at a predetermined position in the vehicle width direction and the vehicle up-down direction. The position where the reflector can be disposed is determined by laws and regulations, and therefore there are restrictions on the placement of the reflector when designing the vehicle.

[0003] A rear bumper extending in the vehicle width direction is disposed at the rear of the vehicle. The rear bumper is a member disposed on the vehicle rear side of the side members and formed of, for example, a resin material. The side members are disposed on outer sides in the vehicle width direction at the rear of the vehicle, spaced apart from each other in the vehicle width direction, and extend in the vehicle front-rear direction. Furthermore, a crash can for absorbing impact energy is usually disposed on the front side of the rear bumper. A reflector is attached to the rear bumper, and when viewed from the rear of the vehicle, a part of the reflector may be disposed so as to overlap, for example, the crash can.

[0004] For example, in SUV-type vehicles with a relatively high vehicle height, the side members and reflectors are often positioned with a vertical offset. For example, in the vehicle disclosed in Patent Document 1, the reflectors are positioned lower than the side members in the vertical direction of the vehicle. This makes it possible to position the crash cans behind the side members. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2022-110708 Summary of the Invention [Problem to be solved by the invention]

[0006] For example, in vehicle design, there are cases where it is necessary to arrange the side member on the lower side of the vehicle in the structure of the above example. In this case, as described above, the position of the reflector is restricted by regulations, etc., and therefore the reflector may overlap the side member when viewed from the rear of the vehicle. If the reflector and the side member overlap, it becomes difficult to secure a space for arranging the crash can, and there is a possibility that the length of the crash can in the vehicle front-rear direction must be shortened.

[0007] A crash can with a short length in the vehicle's fore-aft direction may have a reduced ability to absorb impact energy during a low-speed collision. Meanwhile, with the recent introduction of electric vehicles, the battery pack for propelling the vehicle may be designed to be disposed above or below the rear floor panel. Reducing the length of the crash can in the vehicle's fore-aft direction is not preferable in terms of reducing the possibility of damage to the battery pack. Therefore, in a vehicle in which the side members and the reflector overlap when viewed from the rear of the vehicle, there is room for improvement in the structure of the above example when attempting to ensure the energy absorption performance of the crash can.

[0008] The present invention has been made to solve the above-mentioned problems, and its object is to provide a vehicle rear structure that can effectively absorb impact loads from the rear of a vehicle in which a side member and a reflector are arranged overlapping each other when viewed from the rear of the vehicle. [Means for solving the problem]

[0009] The present invention provides a vehicle rear structure for achieving the above object, the vehicle rear structure further comprising: side members disposed on both sides in the vehicle width direction at the rear of the vehicle and extending in the vehicle front-rear direction; a rear bumper disposed on the vehicle rear side of the side members and extending in the vehicle width direction; a panel disposed on the front side of the rear bumper with a gap therebetween and having a wall surface facing the rear of the vehicle; a first crash can disposed on the vehicle rear side of the side members and extending rearward from the panel; and a reflector attached to the rear bumper and disposed so as to overlap a portion of the first crash can when viewed from the rear of the vehicle. The vehicle rear structure further comprises a second crash can disposed on the inside of the vehicle width direction on the vehicle rear side of the first crash can and extending in the vehicle front-rear direction; and a beam disposed between the first crash can and the second crash can in the vehicle front-rear direction and extending in the vehicle width direction, the rear end of the second crash can is disposed rearward of the reflector, and the reflector and the beam are disposed with a gap between them in the vehicle front-rear direction. Effect of the Invention

[0010] According to the present invention, in a vehicle in which a side member and a reflector are arranged to overlap each other when viewed from the rear of the vehicle, it is possible to effectively absorb an impact load from the rear of the vehicle. [Brief description of the drawings]

[0011] [Figure 1] 1 is a perspective view showing a first crash can and a second crash can, etc., according to one embodiment of a vehicle rear structure according to the present invention. FIG. [Diagram 2] FIG. 2 is a side view of the vehicle rear structure in which the first crash can and the like in FIG. 1 are arranged. [Diagram 3] 3 is a plan view of the rear bumper and the like in FIG. 2 as viewed from above the vehicle. [Figure 4] 4 is a perspective view of the first crash can and the like of FIG. 3 as viewed from the outer side in the vehicle width direction. [Diagram 5] FIG. 4 is a rear view of FIG. 3. [Figure 6] FIG. 4 is a cross-sectional view taken along the line AA in FIG. [Figure 7] 1 is disposed below the radial center of the lower beam. FIG. 2 is a schematic side view showing deformation of the second crash can and the like when the lower end of the second crash can in FIG. [Figure 8] 2 is a schematic side view showing a deformation of the second crash can and the like in FIG. 1. FIG. [Figure 9] FIG. 4 is a rear view showing a state in which the rear bumper has been removed. [Figure 10] FIG. 4 is a perspective view showing the first crash can alone. [Figure 11] FIG. 11 is a top view of FIG. [Figure 12] FIG. 11 is a rear view of FIG. [Figure 13] FIG. 13 is a side view of FIG. 12. [Figure 14] FIG. 4 is a perspective view showing the second crash can alone. [Figure 15] FIG. 15 is a top view of FIG. [Figure 16] FIG. 15 is a rear view of FIG. [Figure 17] FIG. 17 is a side view of FIG. 16. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, an embodiment of a vehicle rear structure according to the present invention will be described with reference to the drawings (FIGS. 1 to 17). In the drawings, the direction of the arrow Fr indicates the front in the vehicle longitudinal direction. In the description of the embodiment, the "front (front end) and rear (rear end)" correspond to the front and rear in the vehicle longitudinal direction. Also, the arrows R and L indicate the right and left sides when an occupant looks forward of the vehicle. The arrow U indicates the upper side of the vehicle.

[0013] The vehicle rear structure of this embodiment includes a side member 10, a rear bumper 20, a reflector 25, a back panel 15 (panel), crash cans 30, 40, and beams 51, 52. These components will be described below.

[0014] As shown in Figs. 2 and 5, the side members 10 are members disposed on both sides in the vehicle width direction at the rear of the vehicle and extend in the vehicle front-rear direction. The side members 10 are made of metal materials and are highly rigid members that constitute the vehicle body frame. The side members 10 of this embodiment have a substantially rectangular closed cross section, and the outer side of a floor panel 18 located at the rear of the vehicle is joined to the side member 10 in the vehicle width direction. Although detailed explanation using drawings is omitted, a flange that protrudes inward in the vehicle width direction and extends in the vehicle front-rear direction is provided on, for example, the inner side of the upper part of the side member 10 in the vehicle width direction, and the side part of the floor panel 18 may be joined to the flange by spot welding or the like. In addition, the floor panel 18 may be arranged so as to cover the upper part of the side member 10 from above, and flanges may be provided on the inner and outer parts of the upper part of the side member 10 in the vehicle width direction and joined to the lower surface of the floor panel 18. In addition, in this embodiment, a back panel 15 (panel) is joined to the rear end of the side member 10.

[0015] As shown in Figs. 3 to 6 and 9, the back panel 15 is a plate-like member disposed at a distance from the front side of the rear bumper 20 extending in the vehicle width direction, and has a front surface facing the front of the vehicle and a rear surface facing the rear of the vehicle. The back panel 15 is a member formed of a metal material and has a predetermined rigidity. A middle portion in the vehicle width direction at the upper portion of the back panel 15 is disposed, for example, at the lower portion of the back door opening. In this example, the back panel 15 is disposed between the rear bumper 20 and the side member 10 in the vehicle front-rear direction. In addition, the front surface of the back panel 15 is joined to the rear end of the side member 10. In addition, a first crash can 30 is joined to the rear surface of the back panel 15 via an end plate 19 described later.

[0016] The rear bumper 20 is disposed on the vehicle rear side of the side member 10 and extends in the vehicle width direction. The rear bumper 20 is a member constituting the outermost part of the rear of the vehicle, and is formed of, for example, a resin material. A reflector mounting portion 24 to which a reflector 25 is attached, and a plate mounting portion 21 to which a license plate 27 is attached are provided on the rear surface of the rear bumper 20. The reflector mounting portion 24 is provided on the outer side of the rear bumper 20 in the vehicle width direction, in the middle part in the vehicle up-down direction. The plate mounting portion 21 is provided on the middle part of the rear bumper 20 in the vehicle width direction, in the middle part in the vehicle up-down direction. The positions of the reflector mounting portion 24 and the plate mounting portion 21 will be described in detail later.

[0017] In this embodiment, as shown in FIG. 1, two crash cans (a first crash can 30 and a second crash can 40) are arranged along the front-rear direction of the vehicle on the outer side in the vehicle width direction at the rear of the vehicle. The first crash can 30 is arranged on the vehicle rear side of the side member 10 and extends rearward from the back panel 15. An end plate 19 is joined to the front of the first crash can 30 by arc welding or the like. The end plate 19 is connected to the rear of the side member 10 via the back panel 15 or the like. In this example, the first crash can 30 and the side member 10 are connected with the back panel 15 and the end plate 19 or the like therebetween.

[0018] 3 to 5, in this embodiment, the second crash can 40 extends in the front-rear direction of the vehicle and is disposed rearward of the first crash can 30 and slightly inward in the vehicle width direction relative to the first crash can 30. The shapes of the first crash can 30 and the second crash can 40 will be described later.

[0019] The reflector 25 is attached to the rear bumper 20 as shown in Fig. 2. In this example, the reflector 25 is attached to a reflector attachment portion 24 provided on the rear bumper 20. The reflector 25 is a long member extending in the vehicle width direction. The reflector 25 is disposed on the outer side in the vehicle width direction, and is disposed at a predetermined position in the vehicle up-down direction. The reflector 25 in this embodiment is disposed such that a portion of the reflector 25 overlaps the first crash can 30 when viewed from the rear of the vehicle.

[0020] As shown in Fig. 1, the beams 51, 52 are pipes having a circular cross section extending in the vehicle width direction. The beams in this embodiment have an upper beam 51 and a lower beam 52 aligned in the vehicle vertical direction. The beams will be described later in detail. The second crash can 40 is attached to the upper beam 51 and the lower beam 52 via reinforcements 55 described later. The upper beam 51 and the lower beam 52 are formed of high tensile steel to ensure a predetermined strength.

[0021] 3, the rear end of the second crash can 40 is disposed rearward of the reflector 25. The reflector 25 and the beams (upper beam 51 and lower beam 52) are disposed at a distance from each other in the vehicle front-rear direction. The reflector attachment portion 24 is disposed outside the second crash can 40 in the vehicle width direction.

[0022] As described above, by providing the second crash can 40 on the inside in the vehicle width direction of the first crash can 30, it is possible to suppress a decrease in the absorption amount of impact energy generated by a rear-end collision, etc., even in a structure in which the reflector 25 and the first crash can 30 are aligned in the vehicle front-rear direction. Also, it is possible to ensure the amount of deformation of the second crash can 40 before the reflector 25 comes into contact with the vehicle body during a rear-end collision. Therefore, in a vehicle in which the side member 10 and the reflector 25 are arranged overlapping each other when viewed from the rear of the vehicle, it is possible to effectively absorb impact energy generated by an impact load from the rear of the vehicle.

[0023] 1, 3 and 4, in this embodiment, a reinforcement 55 extending in the vehicle width direction is disposed between the beams (upper beam 51 and lower beam 52) and the second crash can 40 in the vehicle front-rear direction. The reinforcement 55 overlaps the first crash can 30 when viewed from the rear of the vehicle.

[0024] The reinforcement 55 of this embodiment is a substantially rectangular plate extending in the vehicle width direction, and has a front surface facing the front of the vehicle and a rear surface facing the rear of the vehicle. A beam is joined to the front surface. In this example, the upper beam 51 is joined to the upper part of the front surface by arc welding or the like, and the lower beam 52 is joined to the lower part of the front surface. The upper beam 51 and the lower beam 52 are joined to the front surface with their respective outer ends in the vehicle width direction positioned at the outer ends in the vehicle width direction of the front surface of the reinforcement 55. In addition, the first crash can 30 is joined to the front surface of the reinforcement 55 located between the upper beam 51 and the lower beam 52.

[0025] As described above, by disposing the reinforcement 55, after the second crash can 40 is deformed so as to be crushed toward the rear of the vehicle due to the impact load generated by a rear collision or the like, the impact load can be efficiently transmitted to the first crash can 30. That is, the impact energy can be effectively converted into the deformation energy of the first crash can 30. If the reinforcement 55 is not disposed, the beam joined to the first crash can 30 may deform before the first crash can 30. For example, if the beam deforms at the center of the width direction of the first crash can 30, the impact load may be difficult to transmit to the first crash can 30. In this embodiment, the entire surface of the plate-shaped reinforcement 55 presses the first crash can 30, so that the load is easily transmitted to the first crash can 30, and the impact energy absorption performance of the first crash can 30 is improved.

[0026] Here, the first crash can 30 will be described. The first crash can 30 is a member extending in the vehicle longitudinal direction, and is a member for absorbing a load acting on the rear of the vehicle due to, for example, a rear collision. As shown in Figs. 10 to 13, the first crash can 30 is a hollow polygonal columnar member extending in the vehicle longitudinal direction, and penetrates in the longitudinal direction. As shown in Figs. 10 and 12, the side of the first crash can 30 has four convex portions 31 that protrude radially outward from the center (centre) of the cross-sectional shape. The four convex portions 31 are arranged side by side along the outer circumferential direction of the first crash can 30. Here, the radial direction is the radial direction of a virtual circle centered on the center (centre) of the cross-sectional shape, and the outer circumferential direction is the circumferential direction of the virtual circle.

[0027] The first crash can 30 is formed by joining two plates. As shown in FIG. 12, each plate is bent to form seven side wall surfaces 32 in a rear view. That is, each plate has a plurality of ridges 34 extending in the vehicle front-rear direction. The side wall surfaces 32 at both ends in the outer circumferential direction of one plate are joined to the side wall surfaces 32 at both ends of the other plate to form a polygonal column. The side wall surfaces 32 to which the two plates are joined become the side wall surfaces 32 that constitute the apex 31a of the convex portion 31. That is, the apex 31a becomes one side wall surface 32. The apex portions 31a of the convex portions 31 that constitute the joints face each other with the center of the cross-sectional shape between them.

[0028] Further, two through holes 32a are formed in the top 31a of the convex portion 31 arranged side by side in the circumferential direction with respect to the top 31a of the convex portion 31 constituting the joint (top 31a of the convex portion 31 located next to the joint). The two through holes 32a are arranged side by side with a gap between them in the vehicle longitudinal direction. A bottom ridge 34a extending in the vehicle longitudinal direction is formed between the convex portions 31 adjacent in the circumferential direction. That is, a V-shaped cross section is formed between the adjacent convex portions (FIGS. 10 and 12).

[0029] 12 and 13, the bottom ridge 34a forms the bottom of the V-shaped cross section. A generally triangular inclined wall 33 is formed on the rear side of the bottom ridge 34a. The inclined wall 33 is inclined radially outwardly toward the rear of the vehicle. The width of the inclined wall 33 is formed to increase toward the rear of the vehicle.

[0030] The first crash can 30 in this example adjusts the rigidity in the vehicle longitudinal direction by, for example, the through hole 32a and the ridges 34, 34a. For example, the through hole 32a can reduce the strength. This makes the crash can more susceptible to being crushed by impact. On the other hand, the bottom ridge 34a formed at the bottom of the V-shape can resist loads in the vehicle longitudinal direction. By providing these portions, the crash can is configured to be effectively deformed when an impact load acts while ensuring a predetermined rigidity.

[0031] The first crash can 30 has an upper flange 35, a lower flange 36, an outer protruding portion 37, and an inner protruding portion 38. The upper flange 35 is disposed at an upper portion at the rear end of the first crash can 30. The upper flange 35 protrudes from the rear end of the inclined wall 33 toward the rear of the vehicle and extends in the width direction of the inclined wall 33. The above-mentioned convex shaped portion 31 is disposed on both sides of the outer periphery of the upper flange 35 when viewed in the vehicle front-rear direction. The lower flange 36 is disposed at a lower portion at the rear end of the first crash can 30 and faces the upper flange 35. The lower flange 36 protrudes from the rear end of the inclined wall 33 toward the rear of the vehicle. The upper flange 35 is joined to the upper beam 51 by arc welding or the like, and the lower flange 36 is joined to the lower beam 52 by arc welding or the like.

[0032] The outer protrusion 37 protrudes toward the rear of the vehicle from an outer portion in the vehicle width direction at the rear end of the first crash can 30. The inner protrusion 38 protrudes toward the rear of the vehicle from an inner portion in the vehicle width direction at the rear end of the first crash can 30. In this embodiment, the upper flange 35, the outer protrusion 37, the lower flange 36, and the inner protrusion 38 are arranged at approximately equal intervals from one another along the outer circumferential direction.

[0033] The outer protruding portion 37 and the inner protruding portion 38 are disposed between the upper beam 51 and the lower beam 52 in the vehicle up-down direction. An outer flange 37a and an inner flange 38a are provided at the rear end of the outer protruding portion 37 and the rear end of the inner protruding portion 38, respectively. The outer flange 37a and the inner flange 38a are joined to the front surface of the reinforcement 55.

[0034] Next, the second crash can 40 will be described. The second crash can 40 is a member that extends in the front-rear direction of the vehicle, and similar to the first crash can 30, is a member for absorbing a load that acts on the rear of the vehicle due to, for example, a rear-end collision. As shown in Figs. 14 to 17, the second crash can 40 is a hollow polygonal member that extends in the front-rear direction of the vehicle and penetrates in the front-rear direction of the vehicle.

[0035] 14, the side of the second crash can 40 has four convex portions 41 that protrude radially outward from the center (centroid) of the cross-sectional shape, similar to the first crash can 30. The four convex portions 41 are arranged side by side along the outer circumferential direction of the second crash can 40. Between the convex portions 41 adjacent to each other in the outer circumferential direction, a ridge line 44 is formed that extends in the front-rear direction of the vehicle.

[0036] That is, a V-shaped cross section is formed between adjacent convex portions 41, and the bottom ridge 44a forms the bottom of the V-shaped cross section as shown in Figs. 14 and 15. A substantially triangular inclined wall 43 is formed on the rear side of the bottom ridge 44a, similar to the first crash can 30. An engagement claw 46 is provided on the rear end of the inclined wall 43. The engagement claw 46 is configured to be able to engage with the front surface (rear surface) of the rear bumper 20. The front end of the second crash can 40 is substantially octagonal (Fig. 17).

[0037] Similarly to the first crash can 30, the second crash can 40 is formed by joining two plate materials. Each plate material is bent to form seven side wall surfaces 42 in a rear view. That is, each plate material has a plurality of ridges 44 extending in the front-rear direction of the vehicle. Similarly to the first crash can 30, the side wall surfaces 42 at both ends in the outer circumferential direction of one plate material are joined to the side wall surfaces 42 at both ends of the other plate material, respectively, to form a polygonal prism shape.

[0038] The side wall surface 42 where the two plate materials are joined becomes the side wall surface 42 that constitutes the apex 41a of the convex-shaped portion 41. The apex 41a of the convex-shaped portion 41 that constitutes the joint faces each other with the center of the cross-sectional shape between them. By providing the through hole 42a and the ridge lines 44, 44a, similar to the first crash can 30, it is configured to be able to effectively deform when an impact load is applied while ensuring a predetermined rigidity.

[0039] Next, the shape of the rear bumper 20 will be described. The rear surface of the rear bumper 20 is a design surface that constitutes the outermost part of the vehicle. As shown in Fig. 5 and Fig. 6, the rear surface of the rear bumper 20 is provided with a protruding portion 22 that protrudes toward the rear of the vehicle. The protruding portion 22 is provided on the plate attachment portion 21 described above. The plate attachment portion 21 is disposed in the approximate center of the rear surface of the rear bumper in the vehicle width direction. The plate attachment portion 21 is recessed toward the front side of the vehicle with respect to the design surface.

[0040] A protrusion 22 is formed on the bottom surface 21a of the recessed portion. The bottom surface 21a is an inclined surface that slopes toward the front of the vehicle as it approaches the upper part of the vehicle. The protrusion 22 protrudes toward the rear of the vehicle from a lower part of the bottom surface 21a and extends in the vehicle width direction. In the vehicle up-down direction, the protrusion 22 is disposed between the upper end and the lower end of the second crash can 40.

[0041] As shown in Fig. 6, license plate 27 is inclined to correspond to bottom surface 21a of plate attachment portion 21. That is, license plate 27 is inclined toward the front of the vehicle as it moves toward the upper part of the vehicle. License plate 27 is attached to bottom surface 21a with protruding portion 22 pressed from the rear side of the vehicle. In addition, bracket 17, which protrudes toward the rear of the vehicle, is joined to the rear surface of back panel 15. License plate 27 is attached to the rear end of bracket 17.

[0042] Since license plate 27 has a predetermined rigidity, when an impact load due to a rear-end collision or the like acts on license plate 27, it presses rear bumper 20. Since the rear end of protrusion 22 is disposed further rearward of the vehicle than the rear end of bracket 17, when an impact load acts on license plate 27, the impact load is transmitted to protrusion 22 before bracket 17. By setting the position of protrusion 22 in the vehicle vertical direction as described above, a part of the impact load is easily transmitted from protrusion 22 to second crash can 40. As a result, it is possible to improve the efficiency with which second crash can 40 absorbs impact energy due to the impact load.

[0043] Since bracket 17 supporting license plate 27 is joined to back panel 15, license plate 27 rotates from the rear end of bracket 17 as a starting point, thereby pressing against convex portion 22 more effectively, making it easier to transmit the impact load to second crash can 40.

[0044] In the present embodiment, one of the upper end and the lower end of the second crash can 40 may be arranged to overlap one of the upper beam 51 and the lower beam 52 in the rear view of the vehicle, and the other of the upper end and the lower end of the second crash can 40 may be arranged between the upper beam 51 and the lower beam 52 in the vertical direction of the vehicle. Furthermore, when one of the upper end and the lower end of the second crash can 40 is arranged above the center 51a of the circular cross section of the upper beam 51 or below the center 52a of the circular cross section of the lower beam 52, the other of the upper end and the lower end of the second crash can 40 may be arranged between the center 51a of the circular cross section of the upper beam 51 and the center 52a of the circular cross section of the lower beam 52 in the vertical direction of the vehicle. For example, one of the upper end and the lower end of the second crash can 40 is between the upper beam 51 and the lower beam 52.

[0045] In this embodiment, the upper end of the second crash can 40 is disposed above the center 51a of the circular cross section of the upper beam 51, and the lower end of the second crash can 40 is disposed above the center 52a of the circular cross section of the lower beam 52. When an impact load such as a rear-end collision occurs, the second crash can 40 is deformed first. When the second crash can 40 deforms, the lower end of the second crash can 40 presses the reinforcement 55 toward the front of the vehicle, and the lower part of the reinforcement 55 deforms toward the front of the vehicle.

[0046] 7, if the upper end of the second crash can 40 is disposed above the center 51a of the circular cross section of the upper beam 51 and the lower end of the second crash can 40 is disposed below the center 52a of the circular cross section of the lower beam 52, the second crash can 40 will be deformed so as to be crushed by the impact load due to a rear-end collision or the like, but the impact load will be received by the upper beam 51 and the lower beam 52, and the load may not be transmitted to the reinforcement 55. In this case, the impact energy will be absorbed only by the second crash can 40, and there is a possibility that effective energy absorption will not be performed.

[0047] 8, in this embodiment, the load is transmitted to the reinforcement 55 by the deformation of the second crash can 40, and the deformation of the reinforcement 55 can be promoted. That is, the impact energy generated by the impact load can be converted into the deformation energy of the second crash can 40 and the reinforcement 55, so that the impact energy can be efficiently absorbed.

[0048] The description of the present embodiment is merely an example for explaining the present invention, and does not limit the invention described in the claims. Furthermore, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications are possible within the technical scope described in the claims.

[0049] In this embodiment, there are two beams (upper beam 51 and lower beam 52), but the present invention is not limited to this. As long as a predetermined rigidity and strength are satisfied, one beam may be used. In addition, depending on the vehicle, three or more beams may be used. [Explanation of symbols]

[0050] 10 Side member 15 Back Panel (Panel) 17 Bracket 18 Floor Panel 19 End plate 20 Rear bumper 21 Plate mounting part 21a Bottom 22 Convex 24 Reflector mounting part 25 Reflector 27 License Plate 30 First Crash Can 31 Convex shape part 31a top 32 Side wall 32a through hole 33 Slanted wall 34 Ridgeline 34a Bottom ridgeline 35 Upper flange 36 Lower flange 37 Outer protrusion 37a Outer flange 38 Inner protrusion 38a Inner flange 40 2nd Crash Can 41 Convex shape part 41a Top 42 Side wall 42a through hole 43 Slanted wall 44 Ridgeline 44a Bottom Ridge 46 Engagement claw 51 Upper beam 51a center 52 Lower beam 52a center 55 Reinforcement

Claims

1. side members disposed on both sides in a vehicle width direction at a rear portion of the vehicle and extending in a vehicle front-rear direction; a rear bumper disposed on a vehicle rear side of the side member and extending in a vehicle width direction; a panel disposed on a front side of the rear bumper with a space therebetween and having a wall surface facing the rear of the vehicle; a first crash can disposed on a vehicle rear side of the side member and extending rearward from the panel; a reflector attached to the rear bumper and disposed so as to overlap a portion of the first crash can when viewed from the rear of the vehicle, A second crash can is disposed on the vehicle rear side and on the inside in the vehicle width direction of the first crash can and extends in the vehicle front-rear direction; A beam is disposed between the first crash can and the second crash can in the vehicle front-rear direction and extends in the vehicle width direction. A rear end of the second crash can is disposed rearward of the vehicle relative to the reflector, A vehicle rear structure, characterized in that the reflector and the beam are arranged at a distance from each other in the vehicle front-rear direction.

2. A reinforcement extending in a vehicle width direction is disposed between the beam and the second crash can in the vehicle front-rear direction, The vehicle rear structure according to claim 1 , wherein the reinforcement overlaps the first crash can when viewed from the rear of the vehicle.

3. A protrusion protruding toward the rear of the vehicle is provided on a rear surface of the rear bumper, a license plate inclined toward the front of the vehicle as it approaches the upper part of the vehicle is attached to the rear bumper in a state in which the protruding portion is pressed from the rear side of the vehicle, 3. The vehicle rear structure according to claim 1, wherein the protrusion is disposed between an upper end and a lower end of the second crash can in a vertical direction of the vehicle.

4. The beam includes an upper beam and a lower beam arranged on a vehicle lower side of the upper beam with a gap therebetween, and the reinforcement is a plate-like member joined to the upper beam and the lower beam, One of an upper end and a lower end of the second crash can is arranged to overlap one of the upper beam and the lower beam when viewed from the rear of the vehicle, 3. The vehicle rear structure according to claim 2, wherein the other of the upper end and the lower end of the second crash can is disposed between the upper beam and the lower beam in the vehicle up-down direction.

5. The beam includes an upper beam having a circular cross section, and a lower beam having a circular cross section, the lower beam being spaced apart from the upper beam on the vehicle lower side, the reinforcement being a plate-like member joined to the upper beam and the lower beam, 3. The vehicle rear structure according to claim 2, wherein when one of the upper end and the lower end of the second crash can is positioned above the vehicle relative to the center of the circular cross section of the upper beam or below the center of the circular cross section of the lower beam, the other of the upper end and the lower end of the second crash can is positioned between the center of the circular cross section of the upper beam and the center of the circular cross section of the lower beam in the vehicle vertical direction.

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