JP2013136978A - Fuel supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuel supply device superior in terms of design and safety.SOLUTION: The fuel supply device has a fuel tank (13) to store the fuel, a fuel pump (32) installed inside the fuel tank (13) in such a way as protruding upward from the top surface of the fuel tank (13), and a harness (35) and a fuel hose (36) extending linearly from the protruded portion of the fuel pump (32), wherein the fuel tank (13) is furnished with a through hole (33) penetrating from the top surface to the lower surface, and the harness (35) and fuel hose (36) are led out from the top surface of the fuel tank (13) to its lower surface in passing through the through hole (33).

Description

  The present invention relates to a fuel supply device for a motorcycle, and more particularly to a fuel supply device in which a fuel pump is attached to an upper side of a fuel tank.

  Conventionally, a scooter type motorcycle in which a fuel pump is attached to the upper surface of a fuel tank has been proposed (see, for example, Patent Document 1). In this scooter type motorcycle, a fuel tank is disposed behind a storage space provided below the seat, and a fuel pump is fixed to a flat seat on the upper surface of the fuel tank. In such a scooter type motorcycle, the periphery of the fuel tank is covered with various covers as a vehicle body exterior.

Japanese Patent Laid-Open No. 2005-247022

  By the way, in the backbone type motorcycle, the fuel tank is disposed on the vehicle body frame while being exposed to the outside. In some cases, the backbone type motorcycle is arranged so that the fuel tank covers the vehicle body frame in order to ensure the maximum capacity of the fuel tank. In this case, the lower surface of the fuel tank has a complicated shape so as to avoid the vehicle body frame, and it has been difficult to attach the fuel pump to the lower surface side of the fuel tank.

  On the other hand, in the backbone type motorcycle, when the fuel pump is arranged on the upper surface of the fuel tank as in Patent Document 1, long members such as a fuel hose and a harness extending from the fuel pump are arranged outside the fuel tank. For this reason, the appearance of the fuel hose and harness is deteriorated, and the exposed fuel hose and harness may be damaged, which may cause a problem from the viewpoint of safety.

  This invention is made | formed in view of this point, and it aims at providing the fuel supply apparatus excellent in the design surface and the safety | security side.

  The fuel supply device of the present invention is a fuel supply device for supplying fuel to an engine, a fuel tank for storing the fuel, and a fuel pump disposed inside the fuel tank so as to protrude from one surface of the fuel tank. And a long member extending linearly from the protruding portion of the fuel pump, and the fuel tank is formed with a passage connecting the one surface and the opposite surface, the long member Is led out from one surface of the fuel tank to the opposite surface through the passage.

  According to this configuration, since the long member extended from the fuel pump does not come out from the outer surface of the fuel tank, the deterioration of the design due to the exposure of the long member and the breakage of the exposed long member are suppressed. Therefore, the fuel supply apparatus excellent in design and safety can be realized.

  In the fuel supply device of the present invention, the long member is a fuel hose, and the fuel hose is connected to a fuel injection device on the opposite side of the one surface across the fuel tank. According to this configuration, since the fuel hose connects the fuel pump and the fuel injection device that are disposed to face each other with the fuel tank interposed therebetween, the total length of the fuel hose can be shortened.

  In the fuel supply apparatus of the present invention, the long member is a harness, and the harness is connected to a main harness on the opposite side of the one surface across the fuel tank. According to this configuration, since the harness connects the fuel pump and the main harness that are disposed to face each other with the fuel tank interposed therebetween, the overall length of the harness can be shortened.

  In the fuel supply apparatus of the present invention, the passage is a through-hole penetrating from the one surface of the fuel tank to the opposite surface. According to this structure, since the through-hole which connects both surfaces of a fuel tank is formed, a long member can be arrange | positioned linearly and the full length of a long member can further be shortened. Further, a cylindrical wall surface is formed by a through hole inside the fuel tank, and the rigidity of the fuel tank is improved. Therefore, the strength of the fuel tank is improved, and noise during traveling can be reduced.

  In the fuel supply device of the present invention, at least a part of the passage is arranged to overlap the fuel injection device in plan view. According to this structure, since a long member can be arrange | positioned linearly, the full length of a long member can further be shortened.

  In the fuel supply apparatus of the present invention, the fuel pump is attached to a flat surface formed in the fuel tank. According to this configuration, it is easy to secure the mounting seat surface of the fuel pump, and the fuel pump can be easily attached.

  In the fuel supply apparatus of the present invention, the flat surface is formed by flattening a part of the curved outer surface of the fuel tank, and a protruding portion of the fuel pump on the flat surface is curved of the fuel tank. It is covered with a lid-like member that forms the outer surface. According to this configuration, the cover-like member can prevent the protruding portion of the fuel pump from being exposed, so that the design can be improved. In addition, the fuel pump can be protected from water droplets and dust by the lid-like member.

  In the fuel supply apparatus of the present invention, the fuel pump is attached to an upper portion of the fuel tank, and the fuel tank is disposed on a backbone extending rearward from the head pipe. According to this configuration, the fuel pump can be easily attached even in a backbone type motorcycle in which it is difficult to attach the fuel pump to the lower side of the fuel tank.

  In the fuel supply apparatus of the present invention, at least a part of the fuel pump overlaps with the backbone in a top view, and the passage is disposed offset from the backbone in the vehicle width direction. According to this configuration, it is easy to dispose the long member while avoiding the backbone. Further, the right and left weight balance of the motorcycle can be improved by arranging the fuel pump, which is a heavy component, above the backbone.

  In the fuel supply apparatus of the present invention, the backbone extends rearwardly, and the passage is formed at the rear of the vehicle body from a fuel inlet provided in the fuel tank. According to this configuration, since the storage space on the vehicle body rear side of the fuel tank is widened, it is easy to secure a space for attaching the fuel pump to the fuel tank. A fuel pump and a passage can be provided using the storage space in the fuel tank.

  According to the present invention, it is possible to realize a fuel supply device that is excellent in design and safety.

1 is an overall view of a motorcycle according to the present embodiment. Fig. 3 is a right side view of the periphery of the body frame of the motorcycle according to the present embodiment. FIG. 3 is a right side view showing the configuration of the inside and the periphery of the fuel tank of the motorcycle according to the present embodiment. 1 is a perspective view showing an internal configuration of a fuel tank of a motorcycle according to the present embodiment. It is a top view in the fuel tank rear end part of the motorcycle according to the present embodiment. It is sectional drawing which follows the AA line of FIG. 1 is a top view of a motorcycle according to the present embodiment. It is a schematic diagram of the fuel supply apparatus which concerns on a comparative example, and the fuel supply apparatus which concerns on this Embodiment.

  Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings. In the following, an example in which the fuel supply device according to the present invention is applied to a backbone type motorcycle will be described. However, the present invention is not limited to this and can be modified as appropriate. For example, the present invention can also be applied to a backbone type motorcycle that includes an electric in-tank fuel pump.

  With reference to FIG.1 and FIG.2, schematic structure of the whole motorcycle 1 which concerns on this Embodiment is demonstrated. FIG. 1 is an overall view of a motorcycle 1 according to the present embodiment. FIG. 2 is a right side view around the body frame 11 of the motorcycle 1 according to the present embodiment. In the following description, the front of the vehicle is indicated by an arrow FR, the rear of the vehicle is indicated by an arrow RE, the left side of the vehicle is indicated by L, and the right side of the vehicle is indicated by R.

  As shown in FIGS. 1 and 2, the motorcycle 1 includes a backbone body frame 11 made of steel or aluminum alloy on which various parts such as a power unit and an electrical system are mounted. The front half of the vehicle body frame 11 includes a tank rail frame 111 (backbone) and an under frame 112. The tank rail frame 111 extends rearward from a head pipe 113 provided at the front end of the vehicle body frame 11 and extends downward from the middle. The lower end of the tank rail frame 111 is connected to the swing arm bracket 114. The under frame 112 extends downward from the head pipe 113 and extends rearward from the middle. The lower end of the under frame 112 is connected to the swing arm bracket 114.

  An engine 12 is mounted inside the tank rail frame 111 and the under frame 112. A fuel tank 13 is disposed above the engine 12 on the tank rail frame 111. Behind the fuel tank 13, a seat 14 is disposed on top of a pair of left and right upper frames 115, which is the latter half of the body frame 11. The upper frame 115 is joined to the tank rail frame 111 and extends rearward. The pair of left and right upper frames 115 are fixed to the swing arm bracket 114 via a pair of left and right side frames 116.

  The lower side of the seat 14 is covered with a side upper cover 141 and a side lower cover 142. In the housing space covered by the side upper cover 141 and the side lower cover 142, an electric component such as a fuse and a battery 15 and an air cleaner 26 for supplying electricity to each part of the motorcycle 1 are arranged.

  A pair of left and right front forks 16 are supported at the front end of the body frame 11 via a steering shaft (not shown) provided on the head pipe 113 so as to be able to swing left and right. A handle bar is fixed to the upper end portion of the steering shaft. Grips 17 are attached to both ends of the handle bar. A brake lever 171 for the front wheel 18 is provided on the handlebar on the right side of the vehicle body. A clutch lever (not shown) is provided on the handlebar on the left side of the vehicle body, and a front fender 19 that covers the upper half of the front wheel 18 is supported at the lower part of the pair of front forks 16 while the front wheel 18 is rotatably supported. Is placed. A disc brake 20 is provided on the front wheel 18.

  A rear swing arm 21 is supported at the rear portion of the vehicle body frame 11 so as to be swingable in the vertical direction. A rear wheel 22 is rotatably supported at the rear portion of the rear swing arm 21. The left side of the rear wheel 22 is configured such that engine power is transmitted to the rear wheel 22 by a drive chain (not shown). A disc brake 23 is provided on the rear wheel 22. The upper part of the rear wheel 22 is covered with a rear fender 24 disposed behind the seat 14.

  The rear fender 24 is provided with a pair of left and right rear winkers 241, and a brake lamp 242 is provided behind the rear winker 241. On the rear wheel 22 side of the rear swing arm 21, a rear cushion unit 25 as a rear wheel suspension device is disposed at an intermediate position in the vehicle width direction. The rear cushion unit 25 includes a coil spring, a shock absorber, and the like.

  The engine 12 includes a single-cylinder engine and a transmission, and is supported on a vehicle body frame 11 surrounding the periphery in a side view via an engine mount (not shown). The engine 12 is a horizontal crank type in which the crankshaft is directed in the vehicle width direction, and a single-cylinder cylinder 122 is disposed on a crankcase 121 that houses the crankshaft. A part of the crankcase 121 is covered with a clutch case 123. A cylinder head 124 is provided on the cylinder 122, and a head cover 125 is provided on the cylinder head 124.

  An air cleaner 26 is disposed behind the cylinder head 124. An intake pipe 28 is connected to the air cleaner 26, and a throttle body 27 is provided on the intake pipe 28. The intake pipe 28 is connected to the cylinder head 124. In the engine 12, air is taken into the throttle body 27 from the air cleaner 26, and fuel is injected from the injector 29 into the taken-in air and supplied to the combustion chamber. A carburetor may be used instead of the injector 29.

  An exhaust pipe 30 is connected in front of the cylinder head 124. The exhaust pipe 30 extends downward through the front of the crankcase 121 and extends from the middle through the lower part of the crankcase 121 to the rear of the vehicle body. A muffler 31 is attached to the rear end portion of the exhaust pipe 30. Exhaust gas after combustion in the combustion chamber is discharged to the outside through the exhaust pipe 30 and the muffler 31.

  Hereinafter, the periphery of the fuel tank 13 of the motorcycle 1 will be described with reference to FIGS. 3 and 4. FIG. 3 is a right side view showing the configuration of the inside of the fuel tank 13 of the motorcycle 1 according to the present embodiment and its surroundings. FIG. 4 is a perspective view showing an internal configuration of the fuel tank 13. 3 and 4 mainly show the peripheral portion of the fuel tank 13, and some parts are omitted for convenience of explanation. 3 and 4 show a state in which a part of the fuel tank 13 is cut.

  As shown in FIGS. 3 and 4, the fuel tank 13 is arranged so that a part of the front side of the vehicle body straddles the tank rail frame 111. The fuel tank 13 has a lower shell 132 placed on the tank rail frame 111 and an upper shell 133 that bulges upward from the lower shell 132. The fuel tank 13 forms a fuel storage space by joining the outer edge portion of the lower shell 132 and the outer edge portion of the upper shell 133.

  The lower shell 132 is formed so as to avoid the tank rail frame 111 extending from the head pipe 113 toward the rear of the vehicle body. Specifically, the lower shell 132 bulges downward on both sides in the vehicle width direction so as to cover the tank rail frame 111 from the side on the front side of the vehicle body. Thus, the capacity | capacitance of the fuel tank 13 is ensured by bulging the both sides of the lower shell 132 toward the downward direction.

  A substantially cylindrical fuel injection port 134 is provided in the front half of the upper shell 133. A flat fuel pump mounting surface (flat surface) 135 is provided on the rear side of the fuel inlet 134 in the rear half of the upper shell 133. The fuel pump mounting surface 135 is formed so as to cut out a part of the curved outer surface of the upper shell 133. By forming the fuel pump mounting surface 135 flat, it is easy to secure the mounting seat surface of the fuel pump 32.

  The fuel pump 32 is disposed on the fuel pump mounting surface 135 so as to penetrate the upper shell 133 in the vertical direction. The fuel pump 32 is provided on the rear side of the fuel inlet 134. The protruding portion of the fuel pump 32 on the fuel pump mounting surface 135 is covered with a cover (lid member) 131 (see FIG. 1) along the curved outer surface of the fuel tank 13. Thus, since the cover 131 prevents the protruding portion of the fuel pump 32 from being exposed, the design is improved. Further, the cover 131 protects the fuel pump 32 from water droplets and dust.

  The fuel tank 13 is provided with a through hole (passage) 33 that connects the upper surface side and the lower surface side. The through hole 33 is provided on the rear side of the fuel inlet 134 adjacent to the fuel pump 32. Thus, by providing the fuel pump 32 and the through hole 33 on the vehicle body rear side where the storage space of the fuel tank 13 is widened, it becomes easy to secure a space for attaching the fuel pump 32 to the fuel tank 13. By using the storage space in the fuel tank 13, the fuel pump 32 and the through hole 33 can be easily provided even in the backbone type motorcycle.

  Inside the fuel tank 13, a cylindrical wall portion 136 that connects the lower shell 132 and the upper shell 133 by the through hole 33 is formed. Thus, since the cylindrical wall 136 functions as a support in the fuel tank 13, the rigidity of the fuel tank 13 is improved. As a result, the strength of the fuel tank 13 is improved, and noise such as resonance due to vibration of the fuel tank 13 during traveling of the motorcycle 1 can be reduced. A support member 34 that supports the lower end of the fuel pump 32 is provided inside the fuel tank 13.

  The protruding portion of the fuel pump 32 is provided with a power supply coupler 321 for a harness 35 (long member) and a fuel hose connector 322. One end of the harness 35 is connected to the power coupler 321. The other end of the harness 35 is led out to the lower surface side of the fuel tank 13 through the through hole 33 and connected to a main harness 37 disposed below the fuel tank 13. Since the harness 35 passes through the inside of the fuel tank 13 by the lead-out of the harness 35 as described above, the overall length of the harness 35 can be shortened. Further, since the harness 35 passes through the inside of the fuel tank 13, exposure of the harness 35 to the outside can be prevented. The main harness 37 extends in the front-rear direction along the body frame 11, and one end thereof is connected to the battery 15. The harness 35 supplies power from the battery 15 to the fuel pump 32 via the main harness 37.

  One end of a fuel hose (elongate member) 36 is connected to the fuel hose connector 322. The other end of the fuel hose 36 is led out to the lower surface side of the fuel tank 13 through the through-hole 33 and connected to a fuel hose connector 292 of an injector cap 291 of the injector 29 disposed below the fuel tank 13. The fuel hose 36 supplies the fuel in the fuel tank 13 supplied from the fuel pump 32 to the injector 29. Since the fuel hose 36 passes through the inside of the fuel tank 13 by such a lead-out of the fuel hose 36, the total length of the fuel hose 36 can be shortened. Further, since the fuel hose 36 passes through the inside of the fuel tank 13, exposure of the fuel hose 36 to the outside can be prevented.

  Next, the positional relationship between the fuel tank 13 and the fuel pump 32 in the vehicle width direction will be described with reference to FIGS. FIG. 5 is a top view of the rear end portion of the fuel tank 13 of the motorcycle 1, and FIG. 6 is a cross-sectional view taken along the line AA of FIG. FIG. 7 is a top view of the motorcycle. In FIG. 7, the fuel tank 13 is omitted for convenience of explanation.

  As shown in FIGS. 5 to 7, the fuel tank 13 is disposed above the tank rail frame 111 extending rearward from the head pipe 113. The fuel pump 32 is attached to the upper part of the fuel tank 13. With such an arrangement of the fuel pump 32, the fuel pump 32 can be easily attached even in a backbone type motorcycle in which it is difficult to attach the fuel pump 32 to the lower side of the fuel tank 13. In addition, since the fuel pump 32 can be used in common by many models, the cost can be reduced by mass use of a single model.

  The fuel pump 32 is juxtaposed with the through hole 33 in the vehicle width direction, and the power coupler 321 and the fuel hose connector 322 are directed to the through hole 33 side. An injector 29 is disposed below the fuel pump 32 with the fuel tank 13 interposed therebetween. The injector 29 is disposed laterally away from the tank rail frame 111. The fuel hose 36 extends from the protruding portion of the fuel pump 32 in the vehicle width direction, extends downward from the middle, and is connected to the fuel hose connector 292 of the injector cap 291.

  A main harness 37 is disposed below the fuel pump 32 with the fuel tank 13 interposed therebetween. The main harness 37 is disposed laterally away from the tank rail frame 111. The harness 35 extends from the protruding portion of the fuel pump 32 in the vehicle width direction, extends downward from the middle, and is connected to the main harness 37.

  The through hole 33 is arranged so that at least a part thereof overlaps the injector 29 and the main harness 37 in a top view. Further, the through hole 33 is arranged offset with respect to the tank rail frame 111 in the vehicle width direction so that at least a part of the through hole 33 overlaps the tank rail frame 111 in a top view. With such an arrangement, the fuel hose 36 and the harness 35 are connected in a straight line to the injector 29 and the main harness 37, respectively, avoiding the tank rail frame 111. Therefore, the total length of the fuel hose 36 and the harness 35 can be shortened.

  The fuel pump 32 is disposed above the tank rail frame 111 passing through the vehicle body center line. Therefore, the fuel pump 32, which is a heavy component, is arranged on the vehicle body center line, and the left and right weight balance of the motorcycle 1 is improved.

  Next, referring to FIG. 8, the routing of the harness 35 and the fuel hose 36 will be described by comparing the fuel supply device according to the comparative example with the fuel supply device according to the present embodiment. FIG. 8 is a schematic diagram of a fuel supply device according to a comparative example and a fuel supply device according to the present embodiment. FIG. 8A schematically shows a cross section of the fuel supply apparatus according to the comparative example, and FIG. 8B schematically shows a cross section of the fuel supply apparatus according to the present embodiment. In FIG. 8A and FIG. 8B, the same components are denoted by the same reference numerals.

  As shown in FIG. 8A, in the fuel supply device according to the comparative example, the entire fuel pump 32 is disposed in the fuel tank 13. The fuel tank 13 is formed with a pipe 38 that connects the upper surface of the tank and the fuel pump 32. A harness 35 and a fuel hose 36 extending from the fuel pump 32 are led out to the upper surface side of the fuel tank 13 through a pipe 38. Thus, the harness 35 and the fuel hose 36 are drawn from the upper surface side of the fuel tank 13 so as to prevent fuel leakage.

  In the fuel supply device according to the comparative example, the harness 35 and the fuel hose 36 are disposed along the outer surface of the fuel tank 13. For this reason, the design is deteriorated by the exposed harness 35 and the fuel hose 36, and the exposed harness 35 and the fuel hose 36 may be damaged. Furthermore, since the harness 35 and the fuel hose 36 are disposed along the outer surface of the fuel tank 13, the entire length of the harness 35 and the fuel hose 36 is ensured long.

  Further, in the fuel supply device according to the comparative example, since the fuel pump 32 needs to be fixed to the bottom surface of the fuel tank 13, the bottom surface of the fuel tank 13 is formed flat. For this reason, in the backbone type motorcycle in which the shape of the bottom surface of the fuel tank 13 is complicated, it is difficult to secure the installation space for the fuel pump 32.

  On the other hand, as shown in FIG. 8B, in the fuel supply device according to the present embodiment, the fuel pump 32 is attached to the fuel tank 13 with the upper portion protruding. The harness 35 and the fuel hose 36 extending from the protruding portion of the fuel pump 32 are led out from the upper surface side to the lower surface side of the fuel tank 13 through the through hole 33. In this case, since the wall 136 is formed in the fuel tank 13 by the through hole 33, the rigidity of the fuel tank 13 is improved.

  In the fuel supply device according to the present embodiment, the harness 35 and the fuel hose 36 are disposed inside the through hole 33. For this reason, the deterioration of the design property accompanying the exposure of the harness 35 and the fuel hose 36 can be suppressed, and the breakage of the harness 35 and the fuel hose 36 can be prevented. Moreover, since the harness 35 and the fuel hose 36 are disposed inside the fuel tank 13, the overall length of the harness 35 and the fuel hose 36 can be made the shortest distance, and the manufacturing cost can be reduced.

  Further, in the fuel supply device according to the present embodiment, since the fuel pump 32 is fixed to the fuel pump mounting surface 135 on the upper surface of the fuel tank 13, the bottom surface of the fuel tank 13 is formed flat for the arrangement of the fuel pump 32. There is no need. For this reason, the fuel pump 32 can be easily attached even in a backbone type motorcycle in which the shape of the bottom surface of the fuel tank 13 is complicated. Therefore, the fuel pump 32 of the same model can be used for many types of motorcycles, and the cost reduction due to mass merit and the development process of the fuel pump 32 can be reduced.

  As described above, according to the fuel supply device according to the present embodiment, the harness 35 and the fuel hose 36 extending from the upper end portion of the fuel pump 32 are connected to the lower surface from the upper surface side of the fuel tank 13 through the through hole 33. Derived to the side. Thereby, since the harness 35 and the fuel hose 36 do not come out from the outer surface of the fuel tank 13, the deterioration of the design due to the exposure of the harness 35 and the fuel hose 36 and the damage of the exposed harness 35 and the fuel hose 36 can be suppressed. A fuel supply device that is excellent in design and safety can be realized.

  In addition, this invention is not limited to the said embodiment, It can change and implement variously. In the above-described embodiment, the size, shape, and the like illustrated in the accompanying drawings are not limited to this, and can be appropriately changed within a range in which the effect of the present invention is exhibited. In addition, various modifications can be made without departing from the scope of the object of the present invention.

  For example, in the above-described embodiment, an example in which the fuel supply device is applied to a backbone type motorcycle in which the fuel tank 13 is disposed on the vehicle body frame 11 has been described. However, the present invention is not limited to this configuration. The fuel supply device can also be applied to, for example, a scooter type motorcycle in which the fuel tank 13 is disposed in a seat.

  In the above-described embodiment, the example in which the fuel pump 32 is disposed in the fuel tank 13 so that the upper end of the fuel pump 32 protrudes outward from the upper surface of the fuel tank 13 has been described. However, the present invention is not limited to this configuration. The fuel pump 32 may be disposed in the fuel tank 13 so as to protrude from an arbitrary surface of the fuel tank 13 in the out-of-plane direction. For example, the fuel pump 32 may be disposed in the fuel tank 13 so as to protrude outward from the side surface of the fuel tank 13.

  In the above-described embodiment, the example in which the passage is the cylindrical through-hole 33 in the top view is described, but the present invention is not limited to this configuration. The passage only needs to connect the arbitrary surface of the fuel tank 13 and the opposite surface. The passage may be formed by, for example, a groove provided on the side surface of the fuel tank.

1 Motorcycle 11 Body frame 111 Tank rail frame (backbone)
113 Head pipe 12 Engine 13 Fuel tank 131 Cover 132 Lower shell 133 Upper shell 134 Fuel inlet 135 Fuel pump mounting surface (flat surface)
29 Injector (fuel injection device)
32 Fuel pump 321 Power supply coupler 322 Fuel hose connector 33 Through hole (passage)
35 Harness (long member)
36 Fuel hose (long member)
37 Main harness

Claims (10)

  In the fuel supply apparatus for supplying fuel to the engine, a fuel tank for storing the fuel, a fuel pump disposed inside the fuel tank so as to protrude from one surface of the fuel tank, and a protruding portion of the fuel pump The fuel tank is formed with a passage that connects the one surface and the opposite surface, and the elongated member passes through the passage and passes through the passage. A fuel supply device, wherein the fuel supply device is led out from one surface of the fuel tank to the opposite surface.   The fuel supply device according to claim 1, wherein the elongate member is a fuel hose, and the fuel hose is connected to a fuel injection device on the opposite side of the one surface across the fuel tank.   3. The fuel supply device according to claim 1, wherein the elongate member is a harness, and the harness is connected to a main harness on the opposite side of the one surface across the fuel tank. .   The fuel supply device according to any one of claims 1 to 3, wherein the passage is a through-hole penetrating from the one surface of the fuel tank to the opposite surface.   The fuel supply device according to claim 2, wherein at least a part of the passage is arranged to overlap the fuel injection device in a plan view.   The fuel supply device according to any one of claims 1 to 5, wherein the fuel pump is attached to a flat surface formed in the fuel tank.   The flat surface is formed by flattening a part of the curved outer surface of the fuel tank, and the protruding portion of the fuel pump on the flat surface is covered with a lid-like member that forms the curved outer surface of the fuel tank. The fuel supply device according to any one of claims 1 to 6, wherein   The fuel pump is attached to an upper portion of the fuel tank, and the fuel tank is disposed on a backbone extending rearward from the head pipe. The fuel supply apparatus as described.   9. The fuel supply device according to claim 8, wherein at least a part of the fuel pump overlaps with the backbone in a top view, and the passage is offset from the backbone in a vehicle width direction. .   10. The fuel supply according to claim 8, wherein the backbone extends rearwardly, and the passage is formed at the rear of the vehicle body from a fuel inlet provided in the fuel tank. apparatus.

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