JP4093229B2 - Body structure of an electric automobile - Google Patents

Description

  The present invention relates to a vehicle body structure of an electric four-wheeled vehicle such as an electric wheelchair having a tiller handle type vehicle structure.

  When a person with weak legs moves, an electric wheelchair is used, and a golf carry is used for movement of a person in a golf course. Generally, these vehicles are electric vehicles using a battery as a power source. An example of this type of electric vehicle is shown in FIG. 5 (perspective view) and FIG. 6 (plan view).

  The vehicle shown in FIG. 5 has two front and rear wheels a and b each having a structure in which the front two wheels a are steered by a tiller handle c, and a battery e is mounted under a seat (seat) d in the rear half of the vehicle body. . The rear wheel b is driven by a motor (not shown) using the battery e as a power source. In addition, the front half of the vehicle body is a flat floor g on which the occupant who rides puts his / her foot. In addition, the fender h which covers the upper direction of the front wheel a is located in the front part of the said floor g, and a passenger | crew may place a foot on this fender h temporarily.

  Here, in the electric four-wheeled vehicle as described above, the tread of the front wheel a and the rear wheel b is often the same or close to it. Therefore, as in the vehicle shown in FIG. 6, the treads t1 and t2 of the front wheel a and the rear wheel b are substantially the same, and the body line on the side surface of the vehicle is straight, and particularly the side edge of the floor g is straight. It was. Some vehicles have a trapezoidal body line in plan view, but the side edge of the floor g is still along a straight line.

  However, when the tread is narrow in an electric four-wheeled vehicle, the width of the floor is also narrowed. With this type of support, there is no support for passengers getting on and off, but if the tread is widened to increase the stability of the vehicle, the floor g This increases the distance between the seat and the foot when an occupant tries to get on or off the vehicle. Therefore, since the foot landing property is deteriorated, there is a problem that it is difficult to apply force to the foot and it is difficult for the passenger to get on and off, resulting in inconvenience.

  Further, since the fender h above the front wheel a may have a passenger put his / her foot on, there is a need to increase the rigidity and prevent such bending.

  The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a vehicle body structure for an electric four-wheeled vehicle that can increase the support rigidity of the fender and prevent the bending thereof.

  The present invention has the following configuration in order to solve the above problems.

In the first aspect of the present invention, the front wheel and the rear wheel are a pair of left and right, and the rear wheel side vehicle body is provided with a single seat on which the occupant sits alone. The front end of the single seat and the front wheel of the vehicle front portion In the electric four-wheeled vehicle having a flat footrest floor on which the occupant places his / her feet in the center of the vehicle body between the side vehicle body,
The center part of the vehicle body provided with the footrest floor is formed so that the narrowest part has a width substantially equal to the width of the single seat and is narrower than the maximum width of the front wheel side vehicle body at the front part of the vehicle body. ,
A pair of left and right front wheels and front fenders that respectively cover these front wheels are disposed on the left and right side portions of the front wheel side vehicle body,
These front fender is protruded upward from the footrest floor, the footrest is formed so as to be continuous to the floor integrally, are supported by the fender support frame provided with a footrest surface to the rear surface portion,
The fender support frame includes a front portion, a center portion, and a rear portion, and the front portion extends upward by welding and fixing a front end portion to a side portion of a front frame disposed between the left and right front wheels , and the front portion It extends rearward from the position in contact with the fender along the lower surface of the front fender, and the rear end of the rear is welded and fixed to the main frame that is spread from side to side along the vehicle body width at the lower surface of the footrest floor. In addition, in the vehicle plan view, the center portion and the rear portion are formed so as to pass below the footrest surface portion provided at the rear portion of the front fender so as to support the footrest surface portion provided on the surface portion together with the front fender. This is a vehicle body structure for an electric four-wheeled vehicle.

According to a second aspect of the present invention, in the fender support frame , the front fender extends in the vehicle width direction inner side from the left and right front wheels to the rear in the plan view, and the center part is bent outward in the left and right direction. The vehicle body structure of an electric four-wheel vehicle according to claim 1 , wherein a support portion corresponding to the footrest surface portion is formed so as to reach an outer end portion of a rear portion .

According to a third aspect of the present invention, the fender support frame reaches the laterally outer end of the front fender of the front wheel side vehicle body that is formed wider in the vehicle width direction than the footrest floor provided at the vehicle body center portion. To the rear outer side, and the rear part from the center part is bent from the vicinity of the outer end part in the left-right direction of the front fender toward the inner side in the left-right direction. 3. A vehicle body structure for an electric four-wheel vehicle according to claim 1, wherein the vehicle body structure is provided by being welded and fixed to a main frame provided substantially along a vehicle body width on a lower surface portion.
The invention according to claim 4, wherein the fender support frame, overall in side view is in shape of a C in the opening bottom, characterized in that the cushion unit supporting portion of the front suspension to the front of the upper is formed claimed Item 3. A vehicle body structure of an electric four-wheeled vehicle according to Item 1 or 2 .

In the present invention, since the footrest surface portion is provided on the front fender surface portion and the load supporting fender support frame is provided on the rear surface portion corresponding to the front fender footrest portion , the support rigidity of the front fender is increased.

Therefore, because the fender support frame be multiplied by the weight occupant put a foot to support the front fender rigidity feeling well, the front fender also passengers riding has a sense of security and load of the sudden is applied to the front fender No longer deforms.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an overall explanatory view of a vehicle body structure of an electric four-wheeled vehicle according to an embodiment of the present invention (front panel is omitted), FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. It is a side view of other embodiment of a four-wheeled vehicle.

  As shown in FIGS. 1 to 3, in the electric four-wheel vehicle according to the embodiment, the front wheels 10 and 10 and the rear wheels 12 and 12 are both two-wheels, and the vehicle body mainly includes a front body A and a rear part. It consists of a rear body B. In the rear body B, an occupant sits on the single seat 14 and drives.

  Further, a steering wheel (tiller handle type) 16 for steering the front wheels 10 and 10 is provided at a position substantially above the center of the left and right front wheels 10 and 10 at the front of the vehicle body of the electric four-wheel vehicle. A front leg shield 18 is erected on the front body A below the front body A. Further, front fenders 20 and 20 are provided on the side of the front body A in the left-right direction of the vehicle body so as to cover the front wheels 10 and 10 and project upward, respectively, and the lower portion of the front leg shield 18 is It is located between the left and right front fenders 20,20. Indentation (18a) is formed forward and inward on the left and right sides of the front leg shield 18 adjacent to the front fenders 20 and 20, so that the upper part of the front fender 20 is widely released.

  In the front body A, a flat floor 22 which is a footrest is formed at the center of the vehicle body from the rear side of the front leg shield 18 to the rear, and this floor 22 is forwardly positioned between the front fenders 20 and 20. Widely formed (indicated by reference numeral 22a). In addition, the side edge part of the floor 22 is formed with a portion 22b that protrudes upward from the front mountain range and extends upward from the front fenders 20 and 20. The occupant can prevent the foot from shifting outward from the floor 22 by the protruding portion 22b.

  The rear body B is located rearward from the floor 22 and has a substantially rectangular shape as a whole. The rear body B is a case structure 26 that houses a battery and a motor drive unit at the front. A battery housing cover 26a is detachably provided at the front of the case structure 26, and a rear fender 28 that covers the rear wheels 12 and 12 is provided on the rear side of the structure 26 in the left-right direction of the vehicle body. Protrudes and is provided smoothly and continuously. The seat 14 on which an occupant sits is attached to the upper portion of the case structure 26 so as to be fixed or rotatable.

  Frames for supporting stress on the vehicle body are provided in the front body A and the rear body B of the electric four-wheel vehicle. In this frame, as shown by broken lines in FIGS. 2 and 3, a front frame 32 having a narrow U-shaped portion is provided at the front portion of the vehicle body, and a wide U-shaped main frame is provided at the central portion. 34 is provided. The frames 32 and 34 are fixed to each other by welding. Further, a rear frame 36 extends rearward at the rear portion of the main frame 34.

  The front frame 32 supports the front part of the front body A, the front wheels 10 and 10, the front steering, and the like.

  A fender support frame 38 that supports a load on the front fender 20 is disposed on the back surface of the front fender 20. The support frame 38 is fixed to the front frame 32 and the main frame 34 by welding. That is, as shown in FIGS. 2 and 3, the support frame 38 includes a front portion 38a, a central portion 38b, and a rear portion 38c. The front end portion 38 a 1 of the support frame 38 is welded and fixed to the side surface portion of the front frame 32, and the front portion 38 a extends upward and extends rearward along the lower surface portion of the front fender 20 from a position where it contacts the fender 20. Further, the central portion 38b bends outward in the left-right direction to reach the outer end portion of the fender 20, the rear portion 38c bends slightly inward from the outer end portion, and the rear end portion 38c1 is the shoulder of the main frame 34. It is fixed to the part 34a by welding.

  Here, as shown in FIG. 2, the fender support frame 38 has a C-shape that is open downward in a side view, and an upper portion thereof is along the back surface of the fender 20 in a side view. A support unit 40 for the cushion unit of the front suspension is formed in the upper part of the front portion 38a of the support frame. Further, from the support frame central portion 38b to the rear portion 38c, it bends in an L shape in plan view, and is formed in a shape widely corresponding to the footrest surface portion 20f on the upper surface of the fender 20.

  The main frame 34 is a lower portion of the handle 16 and extends to the left and right substantially along the vehicle body width on the lower surface portion of the floor 22, and a rear frame 36 is further fixed to the rear end portion and extends rearward. A bottom plate 34 b is welded and fixed to a portion of the main frame 34 sandwiched between the U-shapes and located below the floor 22.

  As described above, the footrest surface portion 20f is provided on the front fender 20 surface portion of the front wheels 10, 10, and the load supporting fender support frame 38 is provided on the back surface portion corresponding to the footrest surface portion 20f of the front fender 20, The support rigidity of the front fender 20 is increased. Therefore, even if the occupant puts his / her foot on and puts weight on the front fender 20, the front fender 20 is supported with a sense of rigidity, so that the occupant who is in the vehicle has a sense of security and will not be deformed even if an unexpected load is applied to the fender 20. .

  Further, as seen in a plan view in FIG. 3, there is a floor 22 at the center of the vehicle body and at the rear of the front body A. And the vehicle body center part which has the floor 22 in the front body A is dented so that a side edge part may be indented compared with the vehicle body front and back (the recessed part 42 is formed).

  That is, the side edges of the front fenders 20 and 20 near the front wheels 10 and 10 become the front wheel side vehicle body maximum width Tf, and the side edges of the rear fenders 28 and 28 near the rear wheels 12 and 12 are on the rear wheel side. The vehicle body maximum width Tr is set, and the vehicle body central portion width Tc is narrower than both the front wheel side vehicle body maximum width Tf and the rear wheel side vehicle body maximum width Tr (Tc <Tf, Tc <Tr ).

  Therefore, since the vehicle body central portion width Tc is narrower than the front wheel side vehicle body maximum width Tf and the rear wheel side vehicle body maximum width Tr, the side surface of the vehicle body has a concave portion 42 in a plan view. Can be brought closer to the sheet 14. That is, it is easy to sit down with the feet still on the ground when getting on, and the footwear is improved when getting off.

Further, since the front-wheel-side vehicle body maximum width Tf is narrower than the rear-wheel-side vehicle body maximum width Tr (Tf <Tr), the rear body B on the rear side of the vehicle body on which a battery, a motor or the like is mounted is used as the front body A on the front side of the vehicle body. Can be bigger.

  Further, the width Tc of the narrowest portion of the vehicle body central portion substantially coincides with the width Ts of the seat 14 (Ts≈Tc). Therefore, when the occupant puts his / her feet on the electric four-wheeled vehicle, he / she can put his / her feet on the floor 22 exactly. That is, if the width of the sheet 14 is further narrowed, it is difficult to place the foot on the floor 22, and if it is wider than this, the footing property is deteriorated. Therefore, it is preferable that the width Tc of the narrow portion substantially coincides with the sheet width Ts. .

  FIG. 4 shows another embodiment of the electric four-wheel vehicle of the present invention. The same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals.

  The electric four-wheeled vehicle of FIG. 4 is provided with a golf carrier 44 for loading luggage such as a golf bag protruding rearward from the electric four-wheeled vehicle similar to that shown in FIGS. Is. The golf carrier 44 is composed of a frame body 44c in which a lower plate portion 44a and an upper holding portion 44b are pipes. In the mounting structure of the carrier 44 to the vehicle body, the rear frame 36 is extended to connect the left and right back stays 46 and the lower mounting frame 48 is attached. A carrier support 50 having a triangular shape in side view is fixed to the upper portion of the rear frame 36. A pipe-like support 52 is erected from the support 50 through the cover of the rear body B upward.

  The lower portion of the carrier 44 is fastened to the backstay 46, and the upper mounting frame 44d that protrudes from the upper portion is fitted into the upper portion of the support 52, so that the carrier 44 is attached to the vehicle body.

1 is an overall explanatory view of a vehicle body structure of an electric four-wheel vehicle according to an embodiment of the present invention. It is a side view of the electric four-wheeled vehicle of FIG. It is a top view of the electric four-wheeled vehicle of FIG. It is a side view of other embodiment of an electric four-wheeled vehicle. It is a structure explanation perspective view of the conventional electric four-wheeled vehicle. It is a top view of the electric four-wheeled vehicle of FIG.

Explanation of symbols

10, 10 Front wheel 12, 12 Rear wheel 14 Seat 20, 20 Front fender 22 Floor 32 Front frame 34 Main frame 38 Fender support frame

Claims (4)

The front wheel and the rear wheel are a pair of left and right, and a rear seat on the rear wheel side of the vehicle body is provided with a single seat where an occupant sits alone, and the vehicle body between the front end of the single seat seat and the front wheel side vehicle body at the front of the vehicle body In the electric four-wheeled vehicle with a flat footrest floor on which the occupant places his feet in the center,
The center part of the vehicle body provided with the footrest floor is formed so that the narrowest part has a width substantially equal to the width of the single seat and is narrower than the maximum width of the front wheel side vehicle body at the front part of the vehicle body. ,
A pair of left and right front wheels and front fenders that respectively cover these front wheels are disposed on the left and right side portions of the front wheel side vehicle body,
These front fender is protruded upward from the footrest floor, the footrest is formed so as to be continuous to the floor integrally, are supported by the fender support frame provided with a footrest surface to the rear surface portion,
The fender support frame includes a front portion, a center portion, and a rear portion, and the front portion extends upward by welding and fixing a front end portion to a side portion of a front frame disposed between the left and right front wheels , and the front portion It extends rearward from the position in contact with the fender along the lower surface of the front fender, and the rear end of the rear is welded and fixed to the main frame that is spread from side to side along the vehicle body width at the lower surface of the footrest floor. In addition, in the vehicle plan view, the center portion and the rear portion are formed so as to pass below the footrest surface portion provided at the rear portion of the front fender so as to support the footrest surface portion provided on the surface portion together with the front fender. The body structure of an electric four-wheeled vehicle characterized by this. In the plan view, the fender support frame has a front portion extending rearwardly through the inner side in the vehicle width direction from the left and right front wheels, and the central portion is bent outward in the left-right direction to reach the outer end of the rear portion of the front fender. 2. A vehicle body structure for an electric four-wheeled vehicle according to claim 1 , wherein a support portion corresponding to the footrest surface portion is formed. The fender support frame extends outwardly rear to reach the left-right direction outer end portion of the vehicle body central portion feet provided placed the front wheel vehicle body of the front fender that is widely formed in the vehicle body width direction than the floor The rear part from the center part is bent inward in the left-right direction from the vicinity of the outer end in the left-right direction of the front fender to form a L shape in plan view, and the rear end part is substantially equal to the vehicle body width on the lower surface of the footrest floor. The vehicle body structure for an electric four-wheeled vehicle according to claim 1 or 2 , wherein the vehicle body structure is fixed by welding to a main frame provided along the main frame. 3. The fender support frame according to claim 1 or 2 , wherein the fender support frame has a C-shape that is open downward as viewed from the side, and a cushion unit support portion for a front suspension is formed at an upper portion of the front portion. Body structure of an electric four-wheeled vehicle.

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