Vehicle frame structure

Abstract

To obtain a vehicle frame structure that can reduce the number of parts and assembly processes. Lower arms 64, 66 and upper arms 68, 70 are attached to rear side members 36, 38 as frame members. This eliminates the need for suspension members, realizing a so-called suspension member-less body, which makes it possible to reduce the number of parts and, as a result, the number of assembly processes.

Description

[Technical Field]

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

[0002] For example, Patent Document 1 below discloses a technique related to an electric vehicle. In this prior art, a drive motor for an electric vehicle is mounted on a suspension member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-052511 Summary of the Invention [Problem to be solved by the invention]

[0004] When assembling a vehicle, the suspension members are attached to the so-called body-in-white after the drive motor and suspension arms such as upper and lower arms are installed. However, there are many suspension arms, and therefore many work processes.

[0005] In consideration of the above, an object of the present invention is to provide a vehicle frame structure that can reduce the number of parts and assembly steps. [Means for solving the problem]

[0006] The vehicle frame structure of claim 1 has a pair of left and right suspension arms attached to a pair of left and right side members as frame members extending in the fore-and-aft direction of the vehicle at both ends in the vehicle width direction at the front or rear of the vehicle.

[0007] In the vehicle frame structure according to claim 1, a pair of left and right side members serving as frame members extend in the fore-and-aft direction of the vehicle at both ends in the vehicle width direction at the front or rear of the vehicle, and a pair of left and right suspension arms are attached to the pair of left and right side members, respectively.

[0008] In general, the suspension arm is attached to a suspension member, and the suspension member is formed as a separate member from the side member serving as a frame member.

[0009] In contrast, in the present invention, the suspension arms are attached to the side members (body side) at the front or rear of the vehicle, eliminating the need for suspension members. In other words, the present invention achieves a so-called suspension member-less body, which makes it possible to reduce the number of parts, lighten the vehicle weight, and improve the vehicle's fuel efficiency.

[0010] As a comparative example, in a vehicle equipped with a suspension member, the suspension member is attached to a side member at the front or rear of the vehicle, and a gap must be provided between the side member and the suspension member to prevent them from interfering with each other.

[0011] In contrast, in the present invention, since there is no suspension member, there is no need to provide a gap to avoid interference with the body, and as a result, the dimensions of the side members as frame members can be increased in the vehicle width direction and vehicle up-down direction, making it possible to improve the rigidity of the side members and thereby improve the handling stability when the vehicle is running.

[0012] Furthermore, by improving the rigidity of the side members, it becomes possible to suppress bending deformation of the side members in the event of a frontal collision of the vehicle (hereinafter simply referred to as a "frontal collision") or a rearward collision of the vehicle (hereinafter simply referred to as a "rearward collision"). Note that the term "frontal collision" as used here is a concept that includes not only full-overlap frontal collisions, but also offset collisions, oblique collisions, and small-overlap collisions. The same applies to "rearward collisions" as to "frontal collisions."

[0013] Furthermore, since the present invention does not have a suspension member, there is no need to provide a gap to avoid interference with the body, which makes it possible to secure sufficient space for mounting a drive motor, etc., improving assembly workability.

[0014] Furthermore, in the present invention, since there is no suspension member, there is no need to attach the suspension member to the side member, and therefore the number of assembly steps is reduced accordingly.

[0015] Furthermore, typically, a buffer member is provided between the suspension arm and suspension member, and between the suspension member and side member (body) (so-called double vibration isolation). In contrast, in the present invention, the suspension member is integrated with the body, so there is no need for a buffer member between the suspension member and body, resulting in so-called single vibration isolation, but this also makes it possible to reduce the number of parts.

[0016] The vehicle frame structure of claim 2 is the vehicle frame structure of claim 1, in which a first cross member to which the front side of the drive motor that drives the vehicle is attached in the fore-and-aft direction of the vehicle, and a second cross member that is provided rearward of the first cross member in the fore-and-aft direction of the vehicle and to which the rear side of the drive motor in the fore-and-aft direction of the vehicle is attached are respectively spanned between the pair of left and right side members along the vehicle width direction.

[0017] In the vehicle frame structure of claim 2, a first cross member and a second cross member are respectively spanned between a pair of left and right side members along the vehicle width direction, and the second cross member is positioned rearward of the first cross member in the vehicle fore-and-aft direction.

[0018] The front side of the drive motor in the longitudinal direction of the vehicle is attached to the first cross member, and the rear side of the drive motor in the longitudinal direction of the vehicle is attached to the second cross member. In other words, the drive motor is mounted on a pair of left and right side members via the first and second cross members.

[0019] Compared to the case where a drive motor is mounted on a suspension member and the suspension member is then attached to a side member, in the present invention, the drive motor is simply mounted on a cross member provided on the side member, thereby improving workability.

[0020] The vehicle frame structure according to claim 3 is the vehicle frame structure according to claim 1, wherein the suspension arm includes a lower arm connected to a wheel, and an upper arm connected to the wheel and positioned above the lower arm on the vehicle.

[0021] In the vehicle frame structure according to claim 3, the suspension arm includes a lower arm and an upper arm connected to the wheel, and the upper arm is disposed above the lower arm. The lower arm and the upper arm are disposed above and below the vehicle.

[0022] As a comparative example, when a lower arm and an upper arm are connected to a suspension member, the upper arm is connected to the upper side of the suspension member. Because a side member is disposed above the suspension member, the upper arm needs to avoid interference with the side member, which can make it difficult to form the upper arm in a straight line.

[0023] In contrast, in the present invention, since the upper arm is connected to the side member, the upper arm can be formed in a linear shape, which makes it possible to improve the rigidity of the upper arm itself.

[0024] The vehicle frame structure of claim 4 is the vehicle frame structure of claim 1, further comprising a pair of left and right rockers extending in the vehicle longitudinal direction at both ends of the floor panel in the vehicle width direction, and a pair of left and right connecting portions are provided at one end of the pair of left and right side members in the vehicle longitudinal direction, which are respectively connected to one end of the pair of left and right rockers in the vehicle longitudinal direction in a state where they overlap from the outside in the vehicle width direction.

[0025] The vehicle frame structure according to claim 4 includes a pair of left and right rockers. The pair of left and right rockers extend in the vehicle front-rear direction at both ends of the floor panel in the vehicle width direction. Meanwhile, a pair of left and right connecting portions are provided at one end of each of the pair of left and right side members. Via the pair of left and right connecting portions, one end of the pair of left and right side members in the vehicle front-rear direction is connected to one end of the pair of left and right rockers in the vehicle front-rear direction in a state where they overlap from the outside in the vehicle width direction.

[0026] Here, a battery is mounted in a vehicle center section formed by the floor panel and the pair of left and right rockers, and the vehicle center section is a section having high rigidity. In other words, one end of the pair of left and right side members in the vehicle longitudinal direction is connected to one end of the vehicle longitudinal direction of the vehicle center section having high rigidity, from the outer side in the vehicle width direction. Therefore, in the present invention, the rigidity of the side members in the yaw direction can be improved, and handling stability during vehicle travel can be improved. [Effects of the Invention]

[0027] As described above, the vehicle frame structure according to the present invention can reduce the number of parts and the number of assembly steps. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a perspective view of a center section and a rear section of a vehicle to which a vehicle frame structure according to an embodiment of the present invention is applied, viewed from diagonally above the left side. [Figure 2A] FIG. 2 is a schematic plan view of the left side of the vehicle showing the main parts of FIG. [Figure 2B] FIG. 2 is a schematic side view of the left side of the vehicle showing the main part of FIG. 1. [Figure 3A] FIG. 10 is a schematic diagram showing a vibration-proof structure as a comparative example. [Figure 3B] 1 is a schematic diagram showing a vibration-isolating structure using a vehicle frame structure according to an embodiment of the present invention; [Figure 4] FIG. 2 is a perspective view corresponding to FIG. 1 as a comparative example. [Figure 5A] FIG. 2B is a schematic plan view corresponding to FIG. 2A as a comparative example. [Figure 5B] FIG. 2C is a schematic side view corresponding to FIG. 2B as a comparative example. DETAILED DESCRIPTION OF THE INVENTION

[0029] Hereinafter, a vehicle frame structure according to one embodiment of the present invention will be described with reference to the drawings. Note that the arrows FR, UP, and RH shown as appropriate in each drawing indicate the front side, upper side, and right side in the left-right direction (width direction) of the vehicle, respectively. Furthermore, when the front-rear, up-down, and left-right directions are used in the following description unless otherwise specified, they refer to the front-rear in the front-rear direction of the vehicle, the up-down in the up-down direction of the vehicle, and the left-right in the left-right direction (width direction), respectively.

[0030] <Vehicle frame structure configuration> First, the configuration of the vehicle frame structure according to this embodiment will be described.

[0031] 1 shows a perspective view of a rear portion 13 of a vehicle 12 to which a vehicle frame structure 10 according to this embodiment is applied, viewed from diagonally forward and above. The vehicle 12 is an electric vehicle that includes a battery 18 on the vehicle lower side of a floor panel 16 that forms the floor of a passenger compartment 14. The battery 18 is housed in a battery case 20 that is substantially rectangular in plan view. In this embodiment, for example, a cover that forms the upper part of the battery case 20 constitutes the floor panel 16.

[0032] A pair of left and right rockers 22, 24 extend in the vehicle front-rear direction as framework members at both ends of the floor panel 16 in the vehicle width direction. The rockers 22, 24 have, for example, a generally rectangular frame-like cross section when cut along the vehicle width direction, and a front cross member 26 is bridged along the vehicle width direction between the front ends of the rockers 22, 24. In addition, a rear cross member 28 (see FIG. 2A) is bridged along the vehicle width direction between the rear ends of the rockers 22, 24.

[0033] Furthermore, center cross members 30, 32 are arranged at the front and rear of the vehicle and span the upper ends of the rockers 22, 24 in the approximate center in the vehicle's fore-and-aft direction, extending widthwise from the rockers 22, 24. In this embodiment, the battery case 20 is attached to the rockers 22, 24, front cross member 26, rear cross member 28, and center cross members 30, 32, which serve as framework members. The module formed by the rockers 22, 24, front cross member 26, rear cross member 28, and battery case 20 is referred to as a center module (vehicle center portion) 34.

[0034] A pair of left and right rear side members (side members) 36, 38 extend in the fore-and-aft direction of the vehicle on the vehicle rear side of the pair of left and right rockers 22, 24. The rear ends of the rear side members 36, 38 are located higher on the vehicle than the front ends, and the rear side members 36, 38 are formed so as to slope upward as they extend toward the rear of the vehicle.

[0035] A pair of left and right crash boxes 40, 42 serving as shock absorbers extend in the longitudinal direction of the vehicle on the vehicle rear side of the pair of left and right rear side members 36, 38. A rear bumper 44 extends in the transverse direction of the vehicle from the rear ends of the crash boxes 40, 42.

[0036] (Rear side member) Here, the rear side members 36, 38 will be described.

[0037] As shown in FIG. 2A, the rear side members 36 and 38 are connected by a cross member (first cross member) 46 and a cross member (second cross member) 48, which will be described later, and are generally rectangular in plan view. They are integrally molded by casting using an aluminum alloy, a magnesium alloy, or the like (so-called rear body 50).

[0038] Since the rear side members 36 and 38 have substantially the same configuration, the rear side members 36 and 38 will be described by focusing on the rear side member 38 as a representative of both, and the same reference numerals will be used for components common to both.

[0039] The inner surface of the rear side member 38 in the vehicle width direction is formed along the vehicle front-rear direction. On the other hand, the outer surface of the rear side member 38 in the vehicle width direction has a shape that widens in an arc shape with the front side convex outward in the vehicle width direction as it extends toward the front of the vehicle. In other words, the width dimension of the rear side member 38 gradually increases outward in the vehicle width direction as it extends toward the front of the vehicle.

[0040] The front portion 52 of the rear side member 38 is generally inverted L-shaped in plan view and is shaped so as to be able to abut against the corner 20A at the rear end of the battery case 20. The front portion 52 of the rear side member 38 is configured to include a connecting portion 54 arranged on the outer side of the battery case 20 in the vehicle width direction, and a connecting portion 56 arranged on the vehicle rear side of the battery case 20, and the connecting portion 56 is able to be placed on the rear cross member 28.

[0041] Furthermore, connecting portion 54 is adapted to be connected to the rear end portion of rocker 24 in a state where it overlaps the rear end portion from the outside in the vehicle width direction. As an example, since rocker 24 has a generally rectangular frame-like cross section when cut along the vehicle width direction, connecting portion 54 is provided with an insertion portion (not shown) that is inserted into rocker 24. With connecting portion 56 placed on rear cross member 28, this insertion portion is inserted into rocker 24. At connecting portions 54, 56, rear side member 38 is connected to rocker 24 and rear cross member 28 by bolts, welding, etc.

[0042] 1 and 2A, a cross member 46 serving as a first cross member is disposed along the vehicle width direction at approximately the center in the vehicle fore-and-aft direction of the inner surfaces of the rear side members 36, 38. In this embodiment, the cross member 46 is disposed on the vehicle rear side of the rear cross member 28 that constitutes part of the center module 34.

[0043] 1, 2A, and 2B, a suspension tower 60 supporting the upper end of shock absorber 58 is erected at the rear end of rear side member 38. An inclined portion 62 that includes the inner surface of rear side member 38 and inclines inward in the vehicle width direction as it extends downward hangs down from the lower side of suspension tower 60, and cross member 48, which serves as a second cross member, is bridged along the vehicle width direction from the lower end of inclined portion 62.

[0044] Furthermore, lower arms (suspension arms) 64, 66 and upper arms (suspension arms) 68, 70 that are connected to wheels 63 (see FIG. 3B) and respond to changes in the road surface are attached to the rear side member 38. The lower arms 64, 66 are attached to the lower side of the rear side member 38 (connection portion 72), and the upper arms 68, 70 are attached to the upper side of the rear side member 38 (connection portion 74).

[0045] Furthermore, in this embodiment, a drive motor 78 can be disposed in a space 76 surrounded by the rear side members 36, 38 and the cross members 46, 48. The drive motor 78 is attached (mounted) to the cross members 46, 48 via a motor mount 80.

[0046] The structure in which the drive motor 78, the lower arms 64, 66, and the upper arms 68, 70 are attached to the rear body 50 is referred to as a rear module 82.

[0047] <Actions and effects of vehicle frame structure> Next, the operation and effects of the vehicle frame structure according to this embodiment will be described.

[0048] In this embodiment, as shown in FIG. 1, lower arms 64, 66 and upper arms 68, 70 are attached to rear side members 36, 38 as frame members.

[0049] As a comparative example, as shown in FIG. 4, a suspension arm 108 including lower arms 100, 102 and upper arms 104, 106 is attached to a suspension member 110, and the suspension member 110 is formed as a separate member from rear side members 112, 114.

[0050] In contrast to this, in this embodiment, as shown in FIG. 1, a suspension arm 75 made up of lower arms 64, 66 and upper arms 68, 70 is attached to the rear side members 36, 38, so that suspension members are not required.

[0051] That is, in this embodiment, a so-called suspension member-less body is realized, which makes it possible to reduce the number of parts, which in turn makes it possible to reduce the number of assembly steps, and also makes it possible to reduce the weight of the vehicle 12, which improves fuel efficiency.

[0052] As a comparative example, as shown in Figure 4, in a vehicle 120 provided with a suspension member 110, the suspension member 110 is attached to rear side members 112, 114. For this reason, gaps 124, 126 must be provided between the rear side members 112, 114 and the suspension member 110 to prevent them from interfering with each other, as shown in Figures 5A and 5B.

[0053] In contrast to this, as shown in FIG. 1, in this embodiment, there is no suspension member, so there is no need to provide such a gap, and therefore the dimensions of the rear side members 36, 38 in the vehicle width direction and vehicle up-down direction can be increased accordingly, as shown in FIGS. 2A and 2B.

[0054] This makes it possible to improve the rigidity of the rear side members 36, 38, which in turn makes it possible to improve the rigidity of the rear body 50 and improve the handling stability when the vehicle 12 is traveling.

[0055] In addition, in this embodiment, the rear side members 36, 38 are connected by the cross members 46, 48 and are integrally formed by casting using materials such as aluminum alloy, magnesium alloy, etc., so that the rear body 50 can have high rigidity.

[0056] Furthermore, by improving the rigidity of the rear side members 36, 38, it is possible to suppress bending deformation of the rear side members 36, 38 when the vehicle 12 is involved in a rear collision.

[0057] In addition, the gap that occurs between the rear side members 112, 114 and the suspension member 110 shown in Fig. 4 as a comparative example is not necessary in this embodiment, so that it is possible to ensure sufficient space for mounting the drive motor 78, as shown in Fig. 1, improving workability. Furthermore, since there are no suspension members in this embodiment, there is no need to attach the suspension members to the rear side members 36, 38, and therefore the number of assembly steps is reduced accordingly.

[0058] As a comparative example, as shown in FIG. 3A, a buffer member 122 such as a bush is provided between the suspension arm 108 and the suspension member 110, and a buffer member 128 is provided between the suspension member 110 and the rear side members 112 and 114, thereby providing a so-called double vibration isolation function.

[0059] 3B, in this embodiment, the suspension members are integrated with the rear body 50, eliminating the need for buffer members between the suspension members and the rear side members 36, 38, thereby making it possible to reduce the number of parts. Note that in this embodiment, buffer members 77 are provided between the rear body 50 and the suspension arms 75, providing so-called single-layer vibration isolation, but the stiffening structure makes it possible to satisfy NV performance.

[0060] Regarding the mounting of the drive motor 78, in this embodiment, as shown in Figures 1 and 2A, cross members 46 and 48 are provided on the rear side members 36 and 38, and the cross members 46 and 48 are respectively bridged between the rear side members 36 and 38 along the vehicle width direction.

[0061] The cross member 48 is disposed rearward of the cross member 46 in the vehicle longitudinal direction, and the front side of the drive motor 78 in the vehicle longitudinal direction is attached to the cross member 46, while the rear side of the drive motor 78 in the vehicle longitudinal direction is attached to the cross member 48. In other words, the drive motor 78 is mounted on the rear side members 36, 38 via the cross members 46 and 48.

[0062] As shown in Figure 4, compared to the case where a drive motor 126 is mounted on a suspension member 110 and the suspension member 110 is attached to rear side members 112, 114, in this embodiment, the drive motor 78 is simply mounted on the cross members 46, 48 provided on the rear side members 36, 38 shown in Figure 1, thereby improving workability.

[0063] Furthermore, as a comparative example, when the lower arms 100, 102 and the upper arms 104, 106 are connected to a suspension member 110 as shown in FIG.

[0064] Since rear side members 112, 114 are disposed above the suspension member 110, the upper arms 104, 106 need to avoid interference with the rear side members 112, 114. For this reason, the upper arms 106 are formed with curved portions 106A for avoiding interference with the rear side members 112, 114.

[0065] 1 are formed by casting, allowing for greater design freedom. In this embodiment, the upper arms 68, 70 are connected to the rear side members 36, 38, so the upper arms 68, 70 can be connected to positions that do not interfere with the rear side members 36, 38, allowing the upper arms 68, 70 to be formed in a linear shape. This makes it possible to improve the rigidity of the upper arms 68, 70 themselves.

[0066] In this embodiment, the rockers 22, 24 extend in the front-to-rear direction of the vehicle at both ends of the floor panel 16 in the vehicle width direction. Meanwhile, as shown in Fig. 2A, connecting portions 54, 56 are provided in the front portions 52 of the rear side members 36, 38, and the front ends of the rear side members 36, 38 are connected to the rear ends of the rockers 22, 24 via the connecting portions 54, 56 in a state where they overlap from the outside in the vehicle width direction.

[0067] The battery 18 is mounted on a center module 34, which is made up of the floor panel 16 and rockers 22, 24, and the center module 34 is a highly rigid part. In other words, the front ends of the rear side members 36, 38 are joined to the rear end of the highly rigid center module 34, overlapping each other from the outside in the vehicle width direction.

[0068] Therefore, in this embodiment, the rigidity of the rear side members 36, 38 in the yaw direction can be improved, and the steering stability when the vehicle 12 is traveling can be improved.

[0069] <Supplementary explanation of the above embodiment> 1 and 2A, in the above embodiment, the rear side members 36, 38 and the cross members 46, 48 are integrally molded by casting using an aluminum alloy, a magnesium alloy, or the like, but the material is not limited to this. For example, they may be integrally molded using a resin such as CFRP.

[0070] Furthermore, although the rear side members 36, 38 and the cross members 46, 48 are integrally molded, this is not limitative as long as the lower arms 64, 66 and the upper arms 68, 70 are attached to the rear side members 36, 38. For example, the rear side members 36, 38 may each be formed as a separate body.

[0071] In the above embodiment, the present invention is applied to the rear side member 36 as a side member serving as a framework member in the rear portion of the vehicle, but the present invention is not limited to this. Although not shown in the drawings, the present invention may of course be applied to a front side member serving as a framework member in the front portion of the vehicle.

[0072] Furthermore, in the above embodiment, for example, the cover that constitutes the upper part of the battery case 20 constitutes the floor panel 16, but this is not limited to this. For example, the cover and the floor panel 16 may be formed as separate bodies.

[0073] In the above embodiment, as shown in FIG. 1, the rear side members 36, 38 and the crash boxes 40, 42 are formed as separate bodies, but they may also be formed integrally.

[0074] Furthermore, in the above embodiment, the rear side members 36 are provided as part of the framework of the center module 34, but depending on the shape of the rear body 50, the rear cross member 28 may not necessarily be necessary. In this case, the cross member 46 that constitutes part of the rear body 50 doubles as the rear cross member 28 of the center module 34. This makes it possible to further reduce the number of parts.

[0075] Also, as with the rear body 50, although not shown, if side members as framework members are applied to the front side members, the front cross member 26 of the center module 34 may not necessarily be necessary depending on the shape of the so-called front body.

[0076] Although one embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and one embodiment may be appropriately combined with various modified examples, and the present invention may of course be embodied in various forms as long as it does not deviate from the gist of the present invention.

[0077] <Additional Notes> The vehicle frame member according to the present invention may be formed by appropriately combining the following configurations.

[0078] (Configuration 1) In a vehicle frame structure, a pair of left and right suspension arms are attached to a pair of left and right side members serving as frame members extending in the fore-and-aft direction of the vehicle at both ends in the vehicle width direction at the front or rear of the vehicle.

[0079] (Configuration 2) Between the pair of left and right side members, a first cross member to which the front side of the drive motor that drives the vehicle is attached in the fore-and-aft direction of the vehicle, and a second cross member that is located rearward of the first cross member in the fore-and-aft direction of the vehicle and to which the rear side of the drive motor is attached in the fore-and-aft direction of the vehicle, are each spanned along the width direction of the vehicle.

[0080] (Configuration 3) The suspension arm includes a lower arm connected to a wheel, and an upper arm connected to the wheel and disposed above the lower arm on the vehicle.

[0081] (Configuration 4) The floor panel is provided with a pair of left and right rockers extending in the fore-and-aft direction of the vehicle at both ends in the vehicle width direction, and one end of the pair of left and right side members in the fore-and-aft direction of the vehicle is provided with a pair of left and right connecting portions which are respectively connected to one end of the pair of left and right rockers in the fore-and-aft direction of the vehicle in a state where they overlap from the outside in the vehicle width direction. [Explanation of symbols]

[0082] 10 Vehicle frame structure 12 vehicles 16 Floor Panel 22 Rocca 24 Rocca 36 Rear side member (side member) 38 Rear side member (side member) 46 Cross member (first cross member) 48 Cross member (second cross member) 54 Joint 56 Joint 63 wheels 64 Lower arm (suspension arm) 68 Upper arm (suspension arm) 75 suspension arm 78 Drive motor

Claims

1. A vehicle frame structure in which a pair of left and right suspension arms are attached to a pair of left and right side members that serve as frame members extending in the fore-and-aft direction of the vehicle at both ends of the vehicle width at the front or rear of the vehicle.

2. Between the pair of left and right side members, a first cross member to which a front side of a drive motor that drives the vehicle is attached in the vehicle longitudinal direction; a second cross member provided rearward of the first cross member in the vehicle longitudinal direction, to which a rear side of the drive motor in the vehicle longitudinal direction is attached; 2. The vehicle frame structure according to claim 1, wherein the first and second ribs are respectively bridged along the vehicle width direction.

3. The suspension arm is a lower arm connected to the wheel; an upper arm connected to the wheel and disposed above the lower arm; The vehicle frame structure according to claim 1, comprising:

4. A pair of left and right rockers extending in the front-rear direction of the vehicle are provided at both ends of the floor panel in the vehicle width direction, 2. The vehicle frame structure according to claim 1, wherein one end of the pair of left and right side members in the vehicle longitudinal direction is provided with a pair of left and right connecting portions that are respectively connected to one end of the pair of left and right rockers in the vehicle longitudinal direction in an overlapping state from the outside in the vehicle width direction.

Images