Small electric vehicle

Abstract

To provide a small electric vehicle which can efficiently store various kinds of baggage and can secure high travel stability.SOLUTION: A small electric vehicle 1 comprises: a seat 6 arranged above a floor 3 supported by a frame 2; and a loading platform 7 arranged above rear wheels 5. The frame 2 comprises: a floor frame 21 extending along both sides in a vehicle width direction, of the floor 3, and supporting the floor 3; a lower frame 22 extending rearward and obliquely upward from a rear portion of the floor frame 21; upper frames 23 extending forward and obliquely upward through a bent platform 23A continuous to a rear portion of the lower frame 22; and a cross frame 24 connecting respective front ends of the left and right upper frames 23, and supporting a seat 6. The floor 3 has a flat plane 31 on which baggage can be mounted. The loading platform 7 is fixed over the left and right bent platforms 23A, the rear end 24B of the cross frame 24 is arranged on a front side relative to a rear end portion 31A of the flat plane 31 on the floor 3.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a small electric vehicle. [Background technology]

[0002] In recent years, small electric vehicles have been used as a means of short-distance travel, and these small electric vehicles are capable of traveling on sidewalks at the same speed as pedestrians. Since the dimensions of small electric vehicles are regulated by standards, there is a problem that the driver's riding position becomes cramped when an attempt is made to secure storage space for luggage by, for example, providing a basket in front of the driver's knees.

[0003] In response to such problems, for example, Patent Document 1 discloses a small electric vehicle in which a cargo bed is provided between a pair of left and right rear wheels and a seat is arranged above the front part of the cargo bed, thereby ensuring a storage space for luggage between the seat and the cargo bed without increasing the front-to-rear length of the vehicle. Patent Document 2 discloses a small electric vehicle in which a battery unit is efficiently arranged to realize a floor with a wide flat surface, ensuring utility space at the feet of the occupants, and a box-shaped or basket-shaped luggage storage device is mounted in the space between the pair of left and right rear wheels. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6780280 [Patent Document 2] Patent No. 4019727 Summary of the Invention [Problem to be solved by the invention]

[0005] In conventional small electric vehicles as described above, it is possible to store luggage on the luggage rack between the left and right rear wheels and on the flat surface of the floor. However, since the luggage storage space between the rear wheels and the luggage storage space on the floor are secured independently, it is difficult to stably store relatively large luggage that exceeds each luggage storage space. In addition, when heavy luggage is placed on the luggage rack between the rear wheels or on the luggage storage device, the heavy luggage is placed in a position away from the center of gravity of the vehicle. In such a state, the driving stability of the small electric vehicle may be reduced, and there is room for improvement.

[0006] The present invention has been made in light of the above-mentioned points, and has an object to provide a small electric vehicle that can efficiently store a variety of luggage and ensure high driving stability. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, one aspect of the present invention provides a small electric vehicle comprising a floor supported by a frame, a pair of left and right front wheels arranged at the front of the floor, a pair of left and right rear wheels arranged at the rear of the floor, a seat arranged above the floor for occupants to sit on, and a luggage bed arranged above the rear wheels for placing luggage. The frame in this small electric vehicle includes a pair of left and right floor frames extending along both sides of the floor in the vehicle width direction and supporting the floor, a pair of left and right lower frames extending diagonally upward and rearward from the rear of the floor frames, a pair of left and right upper frames extending diagonally upward and forward of the vehicle via a bent portion continuing to the rear of the lower frames, and a cross frame extending in the vehicle width direction, connecting the front portions of the left and right upper frames and supporting the seat, the floor has a flat surface that extends in the vehicle fore-and-aft and width directions and is capable of supporting luggage, the loading platform is fixed across the left and right bent portions between the lower frames and the upper frames, and the rear end of the cross frame is positioned further forward of the rear end of the flat surface on the floor. Effect of the Invention

[0008] The small electric vehicle according to the present invention is capable of efficiently storing a variety of luggage and ensures high driving stability. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view of a small electric vehicle according to an embodiment of the present invention, as viewed from the front left side. [Diagram 2] FIG. 2 is a perspective view of the small electric vehicle of the embodiment as viewed from the rear left side. [Diagram 3] FIG. 2 is a side view of the small electric vehicle according to the embodiment, as viewed from the left. [Figure 4] FIG. 2 is a perspective view of the small electric vehicle of the embodiment as viewed from the lower left side. [Diagram 5] FIG. 2 is a side view showing an example of a state in which luggage is loaded on both the floor and the luggage platform in the embodiment. [Figure 6] FIG. 2 is a side view showing an example of a state in which luggage is loaded across the floor and the luggage platform in the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 to 4 are a front left perspective view, a rear left perspective view, a left side view, and a lower left perspective view of a small electric vehicle according to an embodiment of the present invention. In each of the drawings described below, the arrow F direction indicates the front in the vehicle longitudinal direction, the arrow U direction indicates the upper direction in the vehicle vertical direction, and the arrow R direction and the arrow L direction indicate the right and left (vehicle width direction) when a passenger sitting in a seat looks forward of the vehicle.

[0011] 1 to 4, a small electric vehicle 1 of this embodiment includes, for example, a floor 3 supported by a frame 2, front wheels 4 and rear wheels 5, a seat 6 on which an occupant sits, a luggage rack 7 on which luggage is placed, and a handlebar 8 operated by an occupant seated on the seat 6. In this embodiment, the front wheels 4 are arranged in a pair on the left and right at the front of the floor 3, and the rear wheels 5 are arranged in a pair on the left and right at the rear of the floor 3. The seat 6 is arranged above the floor 3, the luggage rack 7 is arranged above the left and right rear wheels 5, and the handlebar 8 is arranged in front of the seat 6. An example of the configuration of each part of the small electric vehicle 1 will be specifically described below.

[0012] The frame 2 includes a pair of left and right floor frames 21, a pair of left and right lower frames 22, a pair of left and right upper frames 23, and a cross frame 24. The frame 2 in this embodiment is made of, for example, a single pipe material with a circular hollow cross section that continues in the longitudinal direction, and the floor frame 21, the lower frame 22, the upper frame 23, and the cross frame 24 are integrally formed by bending the pipe material at predetermined positions. However, the frame 2 is not limited to the above example, and may be formed by joining a plurality of pipe materials by welding or the like. In addition, the hollow cross-sectional shape of the pipe material can be any shape other than circular, such as rectangular.

[0013] A pair of left and right floor frames 21 extend along both sides of the floor 3 in the vehicle width direction and support the floor 3. Specifically, the rear portion and the intermediate portion in the vehicle front-rear direction of the floor frames 21 extend straight and generally horizontally in the front-rear direction. The front portion of the floor frame 21 extends at an inclination inward in the vehicle width direction toward the front of the vehicle, and then extends at an inclination upward of the vehicle (FIGS. 1 to 4).

[0014] The front portions of the floor frames 21 that are inclined inward in the vehicle width direction extend generally horizontally and, together with the rear portions and the middle portions in the vehicle width direction of the floor frames 21, support the floor 3 from the sides of the vehicle (FIGS. 3 and 4). In other words, the floor 3 is sandwiched between the generally horizontal portions of the left and right floor frames 21. A footrest 25 that protrudes outward in the vehicle width direction is fixed by welding or the like to the front portions of the floor frames 21 that are inclined upward in the vehicle width direction (FIGS. 2 and 3). The footrest 25 is configured so that an occupant seated in the seat 6 can place his / her feet on it.

[0015] A hole is formed in each front end of the left and right floor frames 21, through which a straight portion of the upper part of the footrest 25 extending in the vehicle width direction is inserted (FIG. 2). The inner end of the straight portion of the footrest 25 inserted into the hole at the tip of the floor frame 21 is fixed to a side wall of a central lower part 83A in the vehicle width direction of a front shield 83 that covers a steering frame 81 (described later) and the like.

[0016] The lower frame 22 extends obliquely upward and rearward from the rear of the floor frame 21. In this embodiment, the lower frame 22 extends straight, via a bent portion 22A continuing to the rear portion of the floor frame 21, while inclining upward and rearward as it approaches the rear of the vehicle. In other words, the lower frame 22 is formed so as to incline backward with respect to the vertical direction. Left and right upper frames 23 are continuous with the rear portions of the left and right lower frames 22.

[0017] The upper frame 23 extends obliquely upward and forward of the vehicle via a bent portion 23A (indicated by a broken line in Figs. 1 to 4) that is continuous with the rear portion of the lower frame 22. In other words, the upper frame 23 bends from the rear portion of the lower frame 22 toward the front side of the vehicle, and then extends straight while inclining upward as it moves toward the front of the vehicle. In other words, the upper frame 23 is formed so as to incline forward with respect to the vertical direction. Therefore, the portions of the frame 2 corresponding to the lower frame 22 and the upper frame 23 are formed in a L-shape that protrudes toward the rear of the vehicle when viewed from the side of the vehicle (Fig. 3).

[0018] The cargo bed 7 is fixed across the left and right bent portions 23A connecting the lower frame 22 and the upper frame 23. In this embodiment, a cargo bed frame 26 is fixed to the lower portions of the left and right bent portions 23A by welding or the like (FIG. 4), and the cargo bed 7 is attached onto the cargo bed frame 26. The cargo bed frame 26 has a U-shape that opens toward the front of the vehicle when viewed from the top-bottom direction of the vehicle, and both ends in the longitudinal direction are fixed to the lower portions of the left and right bent portions 23A, respectively. The upper portions of the left and right bent portions 23A penetrate the front portions of the vehicle width direction sides of the cargo bed 7 (FIGS. 1 to 4).

[0019] The front portions of the left and right upper frames 23 are connected to each other via a cross frame 24 extending in the vehicle width direction. In this embodiment, the front portions of the left and right upper frames 23 are connected to both ends of the cross frame 24 in the vehicle width direction (longitudinal direction) via bent portions 24A continuing from each other. A fixing portion 63 of the seat 6, which will be described later, is attached to the center of the cross frame 24 in the vehicle width direction, and the cross frame 24 supports the seat 6 from below the vehicle (FIGS. 1 to 3).

[0020] The floor frame 21, lower frame 22, upper frame 23 and cross frame 24 as described above are preferably integrally formed by bending a single pipe material at predetermined positions as described above. This eliminates joints between the elements that make up the frame 2, ensuring high rigidity throughout the frame 2. In this embodiment, both ends of the single pipe material (the front ends of the left and right floor frames 21) are fixed to the sidewall portions of the lower central portion 83A of the front shield 83 in the vehicle width direction via the straight portions at the top of the footrests 25, further increasing the rigidity of the frame 2.

[0021] The floor 3 supported by the floor frame 21 of the frame 2 has a flat surface 31 (upper surface) that extends in the vehicle longitudinal direction and vehicle width direction and on which luggage can be placed. In this embodiment, the flat surface 31 of the floor 3 has a substantially rectangular shape that is long in the vehicle longitudinal direction in a plan view. Here, the front and rear edges of the flat surface 31 are formed into gentle arc shapes (FIGS. 1 and 2). In addition to luggage, a passenger seated in the seat 6 can also place his / her feet on the flat surface 31 of the floor 3.

[0022] The rear end 24B of the cross frame 24 described above is disposed on the vehicle front side relative to the rear end 31A of the flat surface 31 of the floor 3. In this embodiment, as shown in Fig. 3, the rear end 24B of the cross frame 24 is provided at a position spaced a distance D away from the rear end 31A of the flat surface 31 of the floor 3 toward the vehicle front side. The distance D is determined according to the shape (area) of the flat surface 31 of the floor 3 and the inclined shapes of the lower frame 22 and the upper frame 23, and is designed (optimized) in advance in consideration of the position of the center of gravity of the vehicle, the seated posture of the occupant, etc.

[0023] A battery mounting section 32 is formed below the flat surface 31 of the floor 3. The battery mounting section 32 is configured to be capable of storing a plurality of vehicle batteries (not shown) for supplying power to a power unit 51 including an electric motor for driving the rear wheels 5 (or the front wheels 4), etc. In addition, a plurality of hooks 33 protruding outward in the vehicle width direction are provided at intervals in the front-rear direction on the right and left sides of the floor 3. Each hook 33 is used to fasten a cord, net, etc. for preventing the movement of luggage placed on the flat surface 31 to the floor 3.

[0024] The left and right front wheels 4 are rotatably supported by a suspension mechanism 41 (FIG. 1). The front wheels 4 are steered left and right in response to the operation of a steering wheel 8 by the rider. The steering wheel 8 is connected to the upper end of a steering shaft 82 that is rotatably supported by a steering frame 81 (FIGS. 2 and 3). The lower end of the steering shaft 82 is connected to the front wheels 4 via a steering mechanism (not shown) that includes a rack-and-pinion mechanism or the like. The steering frame 81 and a portion of the steering shaft 82 are covered by a front shield 83. In addition, the upper parts of the left and right front wheels 4 are each covered by a front fender 42.

[0025] An accelerator operation unit 84, such as an accelerator grip or an accelerator lever, and a brake lever 85 are provided on the handlebars 8 (FIGS. 1 to 3). The occupant can adjust the speed of the small electric vehicle 1 by operating the accelerator operation unit 84 and the brake lever 85. Information relating to the traveling state of the small electric vehicle 1 is displayed on a meter panel 86. The maximum speed of the small electric vehicle 1 is limited to a predetermined value (for example, 20 km / h).

[0026] A box 83B capable of storing beverage bottles and the like is formed on the upper rear side of the front shield 83 (FIGS. 2 and 3). A headlamp 87 and a holder 88 are provided in front of the front shield 83 (FIGS. 1 and 3). The holder 88 is configured so that an attachment such as a carrier case can be attached thereto.

[0027] The left and right rear wheels 5 are rotatably supported by a suspension mechanism 52 (FIGS. 1 to 4). The rear wheels 5 are driven by a power unit 51 that receives power from an on-board battery stored in a battery mounting section 32 on the floor 3. The power unit 51 is mounted below the front of the cargo bed 7 between the left and right rear wheels 5.

[0028] The seat 6 has a seat portion 61, a backrest portion 62, and a fixed portion 63 (FIGS. 1 to 3). The seat portion 61 is the portion on which an occupant sits, and forms a seating surface. The backrest portion 62 is a portion that extends upward from the rear of the seat portion 61, and is configured to support the area around the waist of the occupant seated on the seat portion 61. The fixed portion 63 is attached to the underside of the seat portion 61, and has a hole 63A that penetrates in the vehicle width direction. The fixed portion 63 fixes the seat 6 to a predetermined position on the cross frame 24 by fastening the cross frame 24, which is inserted through the hole 63A, with a bolt or the like.

[0029] As described above, the loading platform 7 is attached to the loading platform frame 26 and fixed so as to straddle the left and right bent portions 23A between the lower frame 22 and the upper frame 23. The loading platform 7 has a flat bottom surface 71 on which luggage is placed. The bottom surface 71 spreads in the vehicle front-rear direction and the vehicle width direction, and is formed into a substantially rectangular shape in a plan view. The rear end portion 31A of the flat surface 31 of the floor 3 described above is disposed on the rear side of the vehicle relative to the front end portion 7A (the front edge portion of the bottom surface 71) of the loading platform 7 (FIG. 3). In other words, the flat surface 31 of the floor 3 and the loading platform 7 overlap each other when viewed from the vehicle top-bottom direction. That is, the flat surface 31 of the floor 3 extends below the loading platform 7.

[0030] The loading platform 7 has a peripheral wall 72 extending upward from the periphery of the bottom surface 71 except for the front edge (FIGS. 1 to 3). The peripheral wall 72 has an inner wall surface extending generally perpendicular to the flat surface (upper surface) of the bottom surface 71, and an outer wall surface disposed opposite the inner wall surface on the outer side of the vehicle. The outer wall surface of the peripheral wall 72 is an inclined surface approaching the inner wall surface as it approaches the upper part of the vehicle. An elongated hole 72A is formed on both the left and right sides of the peripheral wall 72, which extends in the front-rear direction of the vehicle and penetrates in the vehicle width direction. In addition, two elongated holes 72B are formed in the rear part of the peripheral wall 72, which extend in the vehicle width direction and penetrate in the front-rear direction of the vehicle, spaced apart in the vehicle width direction. These elongated holes 72A, 72B can be used to fasten cords, nets, etc. used to secure luggage to the loading platform 7.

[0031] A restricting portion 73 is provided below the front portion of the loading platform 7 to restrict the movement of luggage placed on the flat surface 31 of the floor 3 towards the rear of the vehicle (FIG. 1). The restricting portion 73 extends from the front portion of the underside of the loading platform 7 diagonally downward and forward of the vehicle to just before the flat surface 31 of the floor 3. The restricting portion 73 is formed with a predetermined width in the vehicle width direction, overlaps with the center of the flat surface 31 of the floor 3 in the vehicle width direction, and is disposed further forward of the power unit 51 described above. In addition, lights 74 such as brake lights and direction indicators are attached to the lower rear portion of the loading platform 7 (FIGS. 1 to 4).

[0032] Next, the state in which luggage is loaded on the flat surface 31 of the floor 3 and on the loading platform 7 in the small electric vehicle 1 of this embodiment will be described in detail with reference to several specific examples.

[0033] FIG. 5 is a side view showing an example of a state in which luggage 9A, 9B are loaded on both the flat surface 31 of the floor 3 and the luggage platform 7. As shown in FIG. In the small electric vehicle 1 of this embodiment, the luggage storage space on the flat surface 31 of the floor 3 and the luggage storage space on the cargo bed 7 are formed so as to overlap in the vertical direction of the vehicle, so that luggage 9A, 9B with relatively large dimensions in the fore-aft and / or width directions of the vehicle can be loaded on both the flat surface 31 of the floor 3 and the cargo bed 7, as shown in FIG. 5.

[0034] In the example of FIG. 5, a baggage 9A that can be laid flat is placed on the flat surface 31 of the floor 3, and a box-shaped baggage 9B such as a general-purpose basket used for shopping is placed on the bottom surface 71 of the loading platform 7. The length of the baggage 9A in the vehicle width direction is approximately the same as the width of the flat surface 31 of the floor 3, it is long in the vehicle front-rear direction (but shorter than the overall length of the flat surface 31), and its height in the vehicle vertical direction is lower than the step between the floor 3 and the loading platform 7. The length of the width of the baggage 9B in the vehicle width direction is shorter than the distance between the left and right upper frames 23, and its height in the vehicle vertical direction is higher than the height from the bottom surface of the loading platform 7 to the lower end of the cross frame 24 and lower than the height from the bottom surface of the loading platform 7 to the lower surface of the seat 61. The two-dot chain line shown in FIG. 5 indicates the approximate position of the lower body of an occupant seated on the seat 61 of the seat 6.

[0035] Specifically, the luggage 9A on the floor 3 side is placed close to the rear end side of the flat surface 31 so as to secure a foot space for the occupant. The luggage 9A is tied to the flat surface 31 of the floor 3 using a plurality of hooks 33 and a cord 91 provided on the right and left sides of the floor 3, respectively. The cord 91 prevents the luggage 9A from moving upward and in the width direction of the vehicle. In addition, the rear end of the luggage 9A is close to or in contact with the front end of the restricting portion 73 provided below the front part of the loading platform 7 or the front edge of the bottom surface portion 71 of the loading platform 7, preventing the luggage 9A from moving toward the rear of the vehicle. This makes it possible to avoid a collision between the luggage 9A and the power unit 51. The forward and backward movement of the luggage 9A can also be prevented by increasing the binding force of the cord 91.

[0036] The luggage 9B on the loading platform 7 side is placed close to the front side of the bottom surface portion 71. The upper front part of the luggage 9B is close to or in contact with the rear end portion 24B of the cross frame 24 or the rear end portion of the fixed portion 63 of the seat 6, so that the luggage 9B is prevented from moving forward in the vehicle. The front part of the bottom surface of the luggage 9B is located on the vehicle front side of the front end portion 7A (the front edge portion of the bottom surface portion 71) of the loading platform 7, and covers the rear part of the luggage 9A on the floor 3 side. In addition, the front right side and front right side of the luggage 9B are close to or in contact with the inner ends of the left and right upper frames 23 in the vehicle width direction, so that the luggage 9B is prevented from moving in the vehicle width direction. The movement of the luggage 9B toward the rear of the vehicle and in the vehicle width direction is also prevented by the inner wall surface of the peripheral wall portion 72 of the loading platform 7. It is also possible to prevent the luggage 9B from moving in any direction by tying it to the loading platform 7 using the long holes 72A, 72B provided in the peripheral wall portion 72 of the loading platform 7 and a cord, net, etc. (not shown).

[0037] Regarding the running stability of the small electric vehicle 1 with luggage 9A, 9B loaded on both the floor 3 and the loading platform 7 as described above, in a typical small electric vehicle design, the center of gravity of the vehicle is located near the center in the vehicle's front-rear direction for running stability. The center of gravity in the small electric vehicle 1 of this embodiment is designed to be located near the seat 6 in the vehicle's front-rear direction. In the small electric vehicle 1 with the center of gravity designed in this way, when luggage 9A on the floor 3 side and luggage 9B on the loading platform 7 side are loaded so as to overlap in the vehicle's vertical direction as illustrated in FIG. 5, even if each of the luggage 9A, 9B is heavy, these heavy items are located near the center of gravity of the vehicle, so high running stability can be ensured.

[0038] That is, in the small electric vehicle 1 of this embodiment, the rear end 24B of the cross frame 24 is disposed on the vehicle front side relative to the rear end 31A of the flat surface 31 of the floor 3. With this arrangement, the luggage storage space on the floor 3 side and the luggage storage space on the cargo platform 7 side overlap in the vehicle up-down direction between the rear end 24B of the cross frame 24 and the rear end 31A of the flat surface 31. Therefore, even if heavy objects are loaded on both the floor 3 and the cargo platform 7 in an arrangement such as the luggage 9A, 9B shown in FIG. 5, the center of gravity of the vehicle including the heavy objects is located near directly below the seat 6. This makes it possible to efficiently load the luggage 9A, 9B while ensuring high running stability.

[0039] FIG. 6 is a side view showing an example of a state in which luggage 9C is loaded across the flat surface 31 of the floor 3 and the luggage platform 7. As shown in FIG. In the small electric vehicle 1 of this embodiment, the luggage storage space on the flat surface 31 of the floor 3 and the luggage storage space on the loading platform 7 are connected, so that it is possible to load luggage 9C in a variety of packaging shapes, as shown in Figure 6.

[0040] In the example of Fig. 6, a long piece of luggage 9C such as a golf bag is placed on the flat surface 31 of the floor 3 through the gap between the left and right upper frames 23, the cross frame 24, and the cargo bed 7. The overall length of the luggage 9C in the longitudinal direction is longer than the front-rear length of the flat surface 31 of the floor 3 or the front-rear length of the bottom surface 71 of the cargo bed 7. The cross section of the luggage 9C is narrower than the space defined by the left and right upper frames 23, the cross frame 24, and the front end portion 7A of the cargo bed 7. The two-dot chain line shown in Fig. 6 indicates the approximate position of the lower body of an occupant seated on the seat portion 61 of the seat 6.

[0041] When loading the long luggage 9C as described above onto the small electric vehicle 1, the luggage 9C is lifted so that the longitudinal direction of the luggage 9C is aligned with the longitudinal direction of the vehicle and the front part of the luggage 9C is positioned above the loading platform 7. Then, the luggage 9C is moved diagonally downward toward the front of the vehicle so that the front end of the luggage 9C passes between the left and right upper frames 23, the cross frame 24, and the loading platform 7, and the luggage 9C is placed in a state in which the front end of the luggage 9C abuts against the flat surface 31 of the floor 3 and the central lower part of the luggage 9C in the longitudinal direction abuts against the front end 7A of the loading platform 7. In this state, the central side parts of the luggage 9C in the longitudinal direction are close to or in contact with the inner ends of the left and right upper frames 23 in the vehicle width direction, and the luggage 9C is prevented from moving in the vehicle width direction. In addition, the central upper part of the luggage 9C in the longitudinal direction is close to or in contact with the cross frame 24 or the fixed part 63 of the seat 6, and the luggage 9C is prevented from moving forward and upward of the vehicle. It is also possible to prevent luggage 9C from moving in either direction by tying it to the floor 3 and / or the loading platform 7 using hooks 33 on the left and right sides of the floor 3 and / or the long holes 72A, 72B in the peripheral wall portion 72 of the loading platform 7 and a cord, net, etc. (not shown).

[0042] Even when the long luggage 9C is loaded across the flat surface 31 of the floor 3 and the loading platform 7 as described above, the center of gravity of the vehicle including the luggage 9C is located near directly under the seat 6, similar to the case where luggage 9A, 9B are loaded as shown in Fig. 5 above. Therefore, the small electric vehicle 1 of this embodiment can efficiently store luggage in a variety of packaging shapes and ensure high running stability.

[0043] Furthermore, in the small electric vehicle 1 of this embodiment, the rear end 31A of the flat surface 31 of the floor 3 is disposed further rearward of the vehicle than the front end 7A of the loading platform 7. With this arrangement, the space below the loading platform 7 can also be utilized as a luggage storage space on the flat surface 31 of the floor 3, further improving the luggage storage efficiency. In this case, if a restricting portion 73 is provided on the underside of the loading platform 7, the movement of luggage placed on the flat surface 31 of the floor 3 toward the rear of the vehicle is restricted, making it possible to avoid collision between the luggage and the power unit 51 and to improve the reliability of the small electric vehicle 1.

[0044] Furthermore, in the small electric vehicle 1 of this embodiment, the frame 2 is formed by bending a pipe material. By using such a frame 2, there are no joints between the elements that make up the frame 2, so that high rigidity can be ensured for the entire frame 2. This makes it possible to reduce the impact of vertical loads from passengers and cargo on the driving state when the small electric vehicle 1 runs on rough roads, etc., and thus makes it possible to further improve driving stability.

[0045] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and various modifications and changes are possible based on the technical concept of the present invention. For example, in the above-mentioned embodiment, an example was described in which the rear end 31A of the flat surface 31 of the floor 3 is disposed on the vehicle rear side of the front end 7A of the loading platform 7. However, even if the rear end 31A of the flat surface 31 of the floor 3 is disposed on the vehicle front side of the front end 7A of the loading platform 7, as long as the rear end 31A of the flat surface 31 is disposed on the vehicle rear side of the rear end 24B of the cross frame 24, the luggage storage space on the floor 3 side and the luggage storage space on the loading platform 7 side will overlap in the vertical direction, and the present invention is effective. [Explanation of symbols]

[0046] 1. Small electric vehicle 2. Frame 21...Floor frame 22…Lower frame 22A, 23A, 24A…Bending part 23…Upper frame 24…Cross frame 24B…Rear end 25…Footrest 26…Cargo bed frame 3. Floor 31…Flat surface 31A…Rear end 32…Battery mounting section 33…Hook 4…Front wheel 41...Suspension mechanism 42…Front fender 5…Rear wheel 51…Power unit 52...Suspension mechanism 6…Seat 61...Seat part 62…Backrest 63…Fixed part 7. Cargo bed 71…Bottom part 72...Peripheral wall part 73…Regulation Department 74...Lights 8…Handle 81…Steering frame 82…Steering shaft 83…Front shield 9A, 9B, 9C...Luggage

Claims

1. A floor supported by a frame; A pair of left and right front wheels disposed at the front of the vehicle on the floor; A pair of left and right rear wheels disposed at the rear of the vehicle on the floor; A seat for a passenger to sit on, the seat being disposed above the floor of the vehicle; A loading platform is disposed above the rear wheels of the vehicle and on which luggage is placed; A small electric vehicle comprising: The frame is a pair of left and right floor frames extending along both sides of the floor in a vehicle width direction and supporting the floor; a pair of left and right lower frames extending obliquely upward and rearward from rear portions of the floor frame; a pair of left and right upper frames extending obliquely upward and forward of the vehicle via bent portions continuing to rear portions of the lower frames; a cross frame extending in a vehicle width direction, connecting front portions of the left and right upper frames, and supporting the seat; The floor has a flat surface that extends in the vehicle front-rear direction and the vehicle width direction and is capable of carrying luggage, The loading platform is fixed across the left and right bent portions between the lower frame and the upper frame, A small electric vehicle, wherein a rear end of the cross frame is disposed further forward of the rear end of the flat surface of the floor.

2. 2. The small electric vehicle according to claim 1, wherein a rear end of the flat surface is disposed rearward of the vehicle relative to a front end of the loading platform.

3. 3. The small electric vehicle according to claim 2, further comprising a restricting portion extending obliquely downward and forward from a front portion of the underside of the loading platform, restricting movement of luggage placed on the flat surface toward the rear of the vehicle.

4. 2. The small electric vehicle according to claim 1, wherein the frame is formed by bending a pipe material having a hollow cross section that is continuous in the longitudinal direction.

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