JP2018030441A - Fuel tank attachment structure of saddle-riding type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuel tank attachment structure which achieves good workability during attachment while preventing a fuel tank from swinging around a longitudinal axis.SOLUTION: A fuel tank 15 is attached to a vehicle body frame FR of a motor cycle. Rear brackets 56, 56 are provided at left and right sides of a width narrow part 45 of a rear part of the fuel tank 15. The rear part of the fuel tank 15 is fastened to the vehicle body frame FR through the rear brackets 56 from a vertical direction by fastening members 69. The left and right rear brackets 56, 56 are formed separately and are respectively attached to the fuel tank 15.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a fuel tank mounting structure for mounting a fuel tank to a body frame of a saddle-ride type vehicle.

  A fuel tank of a saddle-ride type vehicle such as a motorcycle is generally disposed above a body frame and in front of a rider seat. Such a fuel tank is supported by the vehicle body frame at the center in the vehicle width direction of the front end portion thereof, and is supported by the vehicle body frame at the rear portion of the middle portion in the front-rear direction. The rear support portions are a pair of left and right to suppress the fuel tank from swinging around the longitudinal axis. In this case, the rear portion is supported by providing brackets on both sides of the fuel tank in the vehicle width direction and fastening the rear portion of the fuel tank to the vehicle body frame using bolts from the outside in the vehicle width direction (for example, Patent Document 1). ).

Japanese Utility Model Publication No. 06-049505

  However, as in Patent Document 1, when bolted from the vehicle width direction, it is necessary to fasten the bolt from the vehicle width direction in a state where the fuel tank is supported by hand and its vertical position is determined. Is bad. Moreover, if it fastens from a vehicle width direction, the undesired force of a vehicle width direction may be loaded to a fuel tank, and examination for avoiding this is needed, and a design becomes difficult.

  An object of the present invention is to provide a fuel tank mounting structure with good workability at the time of mounting while preventing the fuel tank from swinging around the longitudinal axis.

  In order to achieve the above object, a fuel tank mounting structure according to the present invention is a structure for mounting a fuel tank on a body frame of a saddle-ride type vehicle, and brackets are provided on both left and right sides of a narrow portion at the rear of the fuel tank. The rear portion of the fuel tank is fastened to the vehicle body frame from above and below via the bracket.

  According to this configuration, since the two brackets can be spaced apart in the vehicle width direction, it is possible to suppress the fuel tank from swinging around the longitudinal axis. Moreover, since it fastens from an up-down direction, a fastening operation | work can be performed after mounting the rear part of a fuel tank on a vehicle body frame. Therefore, it is not necessary to support the fuel tank by hand at the time of attachment, and workability is good. The fuel tank is usually tapered rearward, and brackets are provided on both the left and right sides of the narrow portion. Therefore, since the bracket is disposed in front of the rear end of the fuel tank, a space is created behind the fuel tank, and such a space can be used effectively.

  In the present invention, it is preferable that the left and right brackets are configured separately from each other and are respectively attached to the fuel tank. According to this configuration, the left and right brackets are not integrated, but formed as separate parts, and these are joined to the fuel tank so that when the brackets are provided at positions separated in the left and right direction, It is difficult to attach wasteful meat (portion connecting the left and right brackets), and the weight can be reduced.

  In the present invention, the body frame preferably includes a pair of left and right frame members extending in the front-rear direction, and the left and right sides of the narrow portion of the rear portion of the fuel tank are fastened to the pair of left and right frame members, respectively. According to this configuration, since the cross member for supporting the fuel tank can be omitted, an increase in the number of parts can be suppressed.

  When the rear part of the fuel tank is fastened to the pair of left and right frame members, a drain outlet part to which a drain tube is connected and a breather outlet part to which a breather tube is connected are provided between the left and right brackets. Preferably it is. According to this structure, each tube can be arrange | positioned in the space ensured by omitting the cross member for fuel tank support between the left and right brackets. Further, since the drain outlet and the breather outlet can be provided at the same low position as the bracket, the drain tube and the breather tube can be shortened.

  In the present invention, the fuel tank is spaced upward from the vehicle body frame, an air cleaner for purifying intake air to the engine is disposed below the fuel tank, an electronic component is disposed on the upper surface of the air cleaner, and the fuel It is preferable that a lower surface of the tank is in contact with the air cleaner via an elastic body, and a recess for storing the electronic component is formed in a bottom plate of the fuel tank. The electronic components include, for example, an ECU (electronic control unit) and a relay box.

  When the vertical gap between the fuel tank and the vehicle body frame becomes large, it becomes difficult to support the intermediate portion in the front-rear direction. However, according to the mounting structure of the present invention, the support for preventing the swing is provided in the intermediate portion in the front-rear direction. Even if omitted, swinging around the longitudinal axis is suppressed. Moreover, since the front-rear direction intermediate portion is in contact with the air cleaner, the support is stabilized and the assemblability is improved. Further, since the recess for housing the electronic component is formed in the bottom plate of the fuel tank, interference between the fuel tank and the electronic component can be avoided even when the electronic component is arranged on the upper surface of the air cleaner. As a result, the degree of freedom of component placement is improved.

  The straddle-type vehicle of the present invention includes the fuel tank mounting structure of the present invention. Therefore, similarly to the fuel tank mounting structure of the present invention, it is possible to suppress swinging around the front and rear centers of the fuel tank and to achieve good mounting workability of the fuel tank.

  According to the fuel tank mounting structure of the present invention, it is possible to suppress the fuel tank from swinging around the longitudinal axis. Further, since the fastening operation can be performed after the rear portion of the fuel tank is placed on the vehicle body frame, it is not necessary to support the fuel tank by hand, and the workability is good.

1 is a side view showing a motorcycle that is a kind of saddle riding type vehicle provided with a fuel tank mounting structure according to a first embodiment of the present invention. It is a top view which shows the front part of the same motorcycle. Fig. 3 is a side view showing a front portion of the motorcycle. Fig. 3 is a perspective view showing a rear portion of the fuel tank of the motorcycle. Fig. 2 is a perspective view showing a vehicle body side bracket of the motorcycle. It is a bottom view which shows the fuel tank. It is a longitudinal cross-sectional view which shows the fuel tank mounting structure.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In this specification, “left side” and “right side” refer to the left and right sides as viewed from the driver who rides the motorcycle.

  FIG. 1 is a side view of a motorcycle having a fuel tank mounting structure according to an embodiment of the present invention. A body frame FR of the motorcycle has a main frame 1 that forms a front half and a rear frame 2 that forms a rear half. The main frame 1 has a main frame piece 1a extending obliquely downward and rearward from a head pipe 4 provided at the front end. As shown in FIG. 2, a pair of left and right main frame pieces 1 a are provided. The distance between the pair of left and right main frame pieces 1a, 1a in the vehicle width direction gradually increases from the head pipe 4 to the rear in the front half and is substantially constant from the middle to the rear half. The main frame pieces 1a and 1a are connected by a cross member 1b extending in the vehicle width direction at the rear part.

  As shown in FIG. 1, the rear frame 2 has a seat rail 2a extending rearward from the cross member 1b, and a front end connected to a rear end portion of the main frame piece 1a. And a reinforcing pipe 2b connected to the lower surface of 2a. A pair of left and right seat rails 2a and reinforcing pipes 2b are also provided.

  A front fork 8 is pivotally supported on the head pipe 4 via a steering shaft (not shown). A steering handle 6 is fixed to the upper end portion of the front fork 8, and a front wheel 10 is attached to the lower end portion of the front fork 8.

  A swing arm bracket 9 is provided at the rear end of the main frame 1. A swing arm 12 is pivotally supported around a pivot shaft 16 attached to the swing arm bracket 9 so as to be swingable up and down. A rear wheel 14 is rotatably supported at the rear end of the swing arm 12. An engine E is mounted below the main frame 1 and on the front side of the swing arm bracket 9. The engine E drives the rear wheel 14 via a power transmission member 11 such as a chain.

  A fuel tank 15 is disposed above the main frame piece 1 a of the main frame 1, and a rider's seat 18 and a passenger's seat 20 are supported on the seat rail 2 a of the rear frame 2. The fuel tank 15 is disposed above the engine E and in front of the rider's seat 18.

  The engine E includes a crankcase 21 that rotatably supports the crankshaft 19, a cylinder block 23 connected to the upper portion of the crankcase 21, and a cylinder head 25 connected to the upper portion of the cylinder block 23. . A plurality of exhaust pipes 22 connected to an exhaust port (not shown) on the front surface of the cylinder head 25 merge below the engine E, and are connected to a muffler 24 disposed between the engine E and the rear wheel 14. ing. The engine E of the present embodiment is a four-cycle four-cylinder engine, but is not limited to this.

  A throttle body 28 is connected to the intake port 26 at the rear of the cylinder head 25. An air cleaner 30 for purifying intake air to the engine E is disposed below the fuel tank 15 and above the engine E, and is connected to the throttle body 28. Specifically, the fuel tank 15 is spaced upward from the main frame 1, an air cleaner 30 is disposed below the fuel tank 15, and an electronic control unit ECU and a relay box 32 that are a kind of electronic components are disposed on the upper surface of the air cleaner 30. Has been placed.

  A canister 34 and a battery 36 are arranged below the rider's seat 18 in the front-rear direction. As shown in FIG. 2, the canister 34 has a container 34 in which activated carbon 35 is accommodated, and adsorbs fuel vapor released from the fuel tank 15 on the activated carbon 35. The vapor adsorbed on the activated carbon 35 is desorbed by fresh air, supplied to the throttle body 28 of FIG.

  On the left side of the vehicle body, a side stand 38 is supported at the lower end of the swing arm bracket 9 so as to support the vehicle body at an angle during parking. An ignition switch IG is provided in front of the fuel tank 15 and behind the head pipe 4. The ignition switch IG is supported on the main frame pieces 1a and 1a of the main frame 1 by fastening members 39 (FIG. 2) such as bolts.

  A pair of left and right shrouds 40 are provided at the front of the vehicle body. The shroud 40 covers a region below the front portion of the fuel tank 15 from the front side of the cylinder head 25 from the outside. Further, a pair of left and right side covers 42 extending rearward from the upper portion of the shroud 40 is provided. The side cover 42 covers the gap between the rear half of the fuel tank 15 and the front half of the rider seat 18 and the vehicle body frame FR from the outside.

  The fuel tank 15 shown in FIG. 3 has a bottom plate 44 that constitutes a bottom portion and an upper plate 46 that constitutes a tank body, and the outer peripheral portions of the bottom plate 44 and the upper plate 46 are joined together by seam welding. . The bottom plate 44 constitutes a lower surface 15b of the fuel tank 15, and the upper plate 46 constitutes a front surface 15f, a rear surface 15r, both side surfaces 15s, 15s, and an upper surface 15u of the fuel tank 15.

  As shown in FIG. 2, the fuel tank 15 has a front half 48 having a large size in the vehicle width direction and a rear half 50 having a size in the vehicle width decreasing from the front half 48 toward the rear. A narrow portion 45 of the fuel tank 15 is formed in the rear half portion 50 of the fuel tank 15. In the present embodiment, the narrow portion 45 is a portion in front of the rear end of the rear half portion 50 of the fuel tank 15 and smaller in the vehicle width direction than the distance between the left and right seat rails 2a, 2a, particularly the left and right seat rails. A portion 0.5 to 0.9 times the inner space W2 between 2a and 2a.

  Front brackets 52, 52 are provided on the front surface 15 f of the fuel tank 15 side by side in the vehicle width direction (left-right direction). The left and right front brackets 52 and 52 are formed separately from each other and are fixed to the upper plate 46 of the fuel tank 15 by welding W. Each front bracket 52 is formed by bending a sheet metal, and has an L shape in a side view including a horizontal plate 52a extending in the front-rear direction and a standing plate 52b extending in the vertical direction. The upright plate 52 b is joined to the front surface 15 f of the fuel tank 15 by welding W. An insertion hole 52c (FIG. 6) is formed in the horizontal plate 52a so as to face in the vertical direction.

  A front portion of the fuel tank 15 is fastened to the main frame 1 from above and below via left and right front brackets 52 and 52. Specifically, a cylindrical elastic member 54 such as a grommet is inserted into the insertion hole 52c, and a bolt 55 is inserted into the elastic member 54 from above, and a screw hole (not shown) formed in the ignition switch IG. ). That is, the front portion of the fuel tank 15 is fastened to the main frame 1 from above by the rubber mount made of the elastic member 54 via the ignition switch IG. The fastening structure of the front part of the fuel tank 15 is the same as the fastening structure by the rubber mount of the rear part mentioned later.

  Rear brackets 56, 56 are provided on the left and right sides of the narrow portion 50 at the rear of the fuel tank 15. Specifically, the rear bracket 56 is provided on the left and right side surfaces in front of the rear end of the fuel tank 15. The left and right rear brackets 56, 56 are formed separately from each other, and are joined to the side surfaces 15s, 15s of the fuel tank 15 by spot welding. That is, the left and right rear brackets 56, 56 are separately provided in the vehicle width direction. In the present embodiment, the rear bracket 56 is provided at the rear portion of the side surface 15 s of the fuel tank 15, and the entirety thereof is located in front of the rear end of the fuel tank 15. The rear bracket 56 is located on the inner side in the vehicle width direction with respect to the outer side surfaces 2aa of the left and right seat rails 2a, 2a in plan view.

  As shown in FIG. 4, the rear bracket 56 includes a tank side portion 58 joined to the fuel tank 15 and a vehicle body side portion 60 fastened to the vehicle body frame FR. The tank side portion 58 is made of a rectangular plate material, and is joined to the fuel tank 15 on one side surface facing the inner side of the vehicle body. The vehicle body side portion 60 is formed by bending a plate material into a U shape with an upward opening, and is fixed to the other side surface of the tank side portion 58 facing the vehicle body by welding. A fastening member insertion hole 60 a facing upward is formed in the vehicle body side portion 60.

  A positioning projection 62 is formed on the side surface 15 s of the fuel tank 15, and the vehicle body side portion 60 of the rear bracket 56 is abutted against and joined to the side surface 15 s of the fuel tank 15 using the projection 62 as a mark. The The convex portion 62 is formed by projecting a part of the side surface 15s of the fuel tank 15 outward from the inside. Providing such a convex portion 62 in the fuel tank 15 eliminates the need for preparing a separate member for positioning, so that it is possible to suppress an increase in the number of parts and to attach such a member to the fuel tank 15. Work is also unnecessary.

  On the other hand, the rear bracket 56 and the vehicle body side portion 60 are supported by the vehicle body frame FR by a fastening member 69 such as a bolt fastened from above and below via a vehicle body side bracket 64 fixed to the seat rail 2a by welding. ing. That is, the rear portion of the fuel tank 15 is fastened to the vehicle body frame FR from above and below via the rear bracket 56. Here, the U-shaped arm of the vehicle body side portion 60 of the rear bracket 56 is tapered toward the tip (upper end), so that the fastening member 69 is greatly exposed on both sides, like a wrench. It becomes easy to fit a simple tool into the fastening member 69.

  As shown in FIG. 5, the vehicle body side bracket 64 is configured by bending a sheet metal, and a lower end portion thereof is joined to the seat rail 2 a by welding W. That is, the vehicle body side bracket 64 is provided so as to protrude upward from the seat rail 2a, and has a horizontal mounting surface 64a at the upper end. A screw hole 64b is formed in the mounting surface 64a so as to face in the vertical direction. The screw hole 64b of the present embodiment is constituted by a weld nut welded to the surface opposite to the mounting surface 64a.

  The vehicle body side bracket 64 is joined to the inner part of the seat rail 2a in the vehicle width direction. That is, the vehicle body side bracket 64 is located on the inner side in the vehicle width direction from the center line C of the seat rail 2a in a plan view of FIG. 2, and slightly protrudes from the seat rail 2a to the inner side in the vehicle width direction. The protrusion dimension W1 of the vehicle body side bracket 64 from the seat rail 2a to the inside is preferably smaller than the width (outer diameter) D of the seat rail 2a. In this embodiment, W1 is about 0.6D. Thus, since the vehicle body side bracket 64 is located in the vicinity of the seat rail 2a, the distance between the left and right vehicle body side brackets 64, 64 is increased. Thereby, since the support width of the fuel tank 15 can be set wide, it is easy to suppress the fuel tank 15 from swinging around the front-rear axis, and the width dimension of the vehicle body can be suppressed.

  A cutout portion 66 is formed at a portion of the vehicle body side bracket 64 facing the fuel tank 15 in the vehicle width direction inner side portion. This prevents the fuel tank 15 from interfering with the vehicle body side bracket 64 when the fuel tank 15 is attached to and detached from the vehicle body. As a result, it is possible to facilitate the attaching / detaching work while securing the tank capacity.

  In the present embodiment, the seat stay 65 is disposed behind the vehicle body side bracket 64, and the vehicle body side bracket 64 and the seat stay 65 are joined by welding W. The seat stay 65 is also formed by bending a sheet metal, and its lower end is joined to the seat rail 2a by welding W. That is, the seat stay 65 is provided so as to protrude upward from the seat rail 2a, and has a horizontal mounting surface 65a at the upper end. The mounting surface 65 a of the seat stay 65 is provided at a position higher than the mounting surface 64 a of the vehicle body side bracket 64. A screw hole 65b is formed in the mounting surface 65a of the seat stay 65 so as to face in the vertical direction. The screw hole 65b of the present embodiment is constituted by a weld nut welded to the surface opposite to the mounting surface 65a.

  As shown in FIG. 2, a cross member 67 extending in the vehicle width direction is attached to the seat stay 65 using a bolt 75. That is, the cross member 67 connects the pair of left and right seat rails 2a and 2a. The cross member 67 supports the front portion of the rider's seat 18. The axis of the fastening member 69 that connects the rear bracket 56 and the vehicle body side bracket 64 is located on the inner side in the vehicle width direction from the center line C of the seat rail 2a formed of a cylindrical pipe.

  As shown in FIG. 7, a cylindrical elastic member 68 such as a grommet and an inner collar 71 are attached to the fastening member insertion hole 60a of the vehicle body side portion 60 of the rear bracket 56, and a bolt 71 is attached to the collar 71. Such a fastening member 69 is inserted from above. The fastening member 69 is fastened to the screw hole 64 b of the vehicle body side bracket 64. That is, with the elastic member 68 attached to the fuel tank 15, the fuel tank 15 can be placed on the horizontal attachment surface 64 a of the vehicle body side bracket 64 via the elastic member 68. As a result, when the fastening operation of the fuel tank 15 to the vehicle body frame FR is performed, the positioning of the fuel tank 15 and the vehicle body frame FR and the holding of the fuel tank 15 to the vehicle body frame FR can be achieved simultaneously.

  As described above, the rear part of the fuel tank 15 of FIG. 4, specifically, the left and right sides of the narrow part 45 of the rear part of the fuel tank 15 are fastened to the pair of left and right seat rails 2 a by the rubber mount having the elastic members 68 from above. Has been. Thus, in combination with the rubber mount support at the front end of the fuel tank 15, the fuel tank 15 can be supported on the vehicle body frame FR in a vibration-proof state.

  The rear bracket 56 of the fuel tank 15 and the vehicle body side bracket 64 of the vehicle body frame FR shown in FIG. 3 are covered from the outside by a side cover 42 (FIG. 1) which is a kind of design part. Therefore, the elastic member 68 and the fastening member 69 are prevented from being exposed to the outside, the appearance is improved, and the brackets 56 and 64 do not have to have design properties, so that the degree of freedom in design is improved. To do.

  A drain outlet portion 72 to which a drain tube 70 is connected and a breather outlet portion 76 to which a breather tube 74 is connected are provided between the left and right rear brackets 56 on the rear surface 15r of the fuel tank 15 shown in FIG. They are arranged side by side (in the left-right direction). Specifically, a breather outlet portion 76 is provided on the right side, and a drain outlet portion 72 is provided on the left side. As shown in FIG. 2, the drain tube 70 and the breather tube 74 pass below the cross member 67.

  Since the side stand 38 shown in FIG. 1 is provided on the left side, providing a drain outlet 72 on the left side is advantageous for drain discharge. Since the breather tube 74 is connected to the right side surface of the canister 34 shown in FIG. 2, the breather tube 74 can be shortened by providing the breather outlet portion 76 on the right side. Since the breather tube 74 is generally an expensive fluororesin tube, the effect of shortening the breather tube 74 is great.

  As shown in FIG. 3, the lower surface of the front portion of the fuel tank 15 is in contact with the upper surface of the air cleaner 30 via the elastic body 78. The elastic body 78 is, for example, a rubber sponge. Specifically, as shown in FIG. 6, a concave portion 80 that is recessed upward is formed in the front portion of the bottom plate 44 of the fuel tank 15, and this concave portion 80 is a kind of electronic component shown in FIG. 3. The relay box 32 and the electronic control unit ECU are accommodated. An elastic body 78 is interposed between the upper surface of the electronic component and the bottom surface 80 a of the recess 80 of the fuel tank 15.

  According to the above configuration, the pair of left and right rear brackets 56, 56 shown in FIG. 2 can be spaced apart in the vehicle width direction, so that the fuel tank 15 can be restrained from swinging around the longitudinal axis. As a result, it is not necessary to add a support for preventing rocking in the middle part in the front-rear direction, and the increase in the number of parts can be suppressed. In particular, as in the present embodiment, when the vertical gap between the fuel tank 15 and the vehicle body frame FR shown in FIG. 3 becomes large, it becomes difficult to support the intermediate portion in the front-rear direction. For example, even if the support for preventing swinging is omitted at the middle part in the front-rear direction, swinging around the front-rear axis can be suppressed.

  Further, since the rear brackets 56 and 56 of the fuel tank 15 shown in FIG. 2 are fastened by bolts 55 and 69 from above and below, the fastening work can be performed after the fuel tank 15 is placed on the vehicle body frame FR. . Therefore, it is not necessary to support the fuel tank 15 by hand at the time of attachment, and workability is good.

  The fuel tank 15 is usually tapered toward the rear, and rear brackets 56, 56 are provided on the left and right sides of the narrow portion 45. Therefore, the rear bracket 56 can be disposed in front of the rear end 15r of the fuel tank 15, and the cross member for supporting the fuel tank can be omitted. Thereby, a space is created behind the fuel tank 15, and such a space can be used effectively.

  The drain tube 70, the breather tube 74, and the canister 34 are arranged in a space secured by omitting the cross member for supporting the fuel tank. Many parts and tubes are arranged behind the fuel tank 15 and below the front portion of the rider's seat 18. In the present embodiment, as described above, the fuel tank support cross member is omitted, and the tubes 70 and 74 are disposed below the seat support cross member 67. As a result, in a severe space situation, the fuel tank 15 is expanded as far back as possible to ensure the capacity, and the rider's seat 18 is stably supported.

  The left and right rear brackets 56, 56 are configured separately from each other and are attached to the fuel tank 15. In this way, the plurality of brackets are not formed as a single unit, but are formed as separate parts, and these are joined to the fuel tank 15 so that when the brackets are provided at positions separated in the left-right direction, the rear side Since the portion connecting the brackets 56 and 56 is not attached to the fuel tank 15 as useless meat, the weight can be reduced. Further, since the shapes of the left and right rear brackets 56 and 56 can be asymmetrical on the left and right, the degree of freedom in design is improved. When the shape of the rear bracket 56 is symmetric in the left and right as in the present embodiment, the left and right rear brackets 56 can be shared, and the types of parts can be reduced.

  An intermediate portion in the front-rear direction of the fuel tank 15 shown in FIG. 3 is in contact with an electronic component ECU 32 that has an elastic body 78 disposed on the upper surface of the air cleaner 30. Therefore, the support of the fuel tank 15 is stabilized. Further, since the recess 80 for storing the electronic parts ECU 32 is formed in the bottom plate 44 of the fuel tank 15, even when the electronic parts ECU 32 is disposed on the upper surface of the air cleaner 30, the fuel tank 15 and the electronic parts ECU, Interference with 32 can be avoided.

  The present invention is not limited to the above-described embodiment, and various additions, modifications, or deletions can be made without departing from the gist of the present invention. For example, in the above-described embodiment, an example in which the fuel tank mounting structure of the present invention is used in a motorcycle has been described. However, the fuel tank mounting structure of the present invention is not limited to a motorcycle, and is not limited to a motorcycle. It can also be applied to riding vehicles. Therefore, such a thing is also included in the scope of the present invention.

1 Main frame 1a Main frame piece (frame member)
2a Seat rail (frame member)
15 Fuel tank 30 Air cleaner 32 Relay box (electronic parts)
44 Fuel tank bottom plate 45 Narrow part 56 Rear bracket (bracket)
70 Drain tube 72 Drain outlet portion 74 Breather tube 76 Breather outlet portion 78 Elastic body 80 Recessed portion E Engine ECU Electronic control unit (electronic component)
FR body frame

Claims (6)

A fuel tank is attached to the body frame of the saddle riding type vehicle,
Brackets are provided on both left and right sides of the narrow portion of the rear portion of the fuel tank,
A fuel tank mounting structure for a saddle-ride type vehicle, wherein a rear portion of the fuel tank is fastened to the vehicle body frame from above and below via the bracket.   2. The fuel tank mounting structure according to claim 1, wherein the left and right brackets are configured separately from the fuel tank and are respectively mounted on the fuel tank. The fuel tank mounting structure according to claim 1 or 2, wherein the vehicle body frame has a pair of left and right frame members extending in the front-rear direction.
A fuel tank mounting structure for a saddle-ride type vehicle, wherein left and right sides of a narrow portion at the rear of the fuel tank are respectively fastened to a pair of left and right frame members.   4. The fuel tank mounting structure according to claim 3, wherein a drain outlet portion to which a drain tube is connected and a breather outlet portion to which a breather tube is connected are provided between the left and right brackets. Tank mounting structure. The fuel tank mounting structure according to any one of claims 1 to 4, wherein the fuel tank is spaced upward from the vehicle body frame,
An air cleaner for purifying intake air to the engine is disposed below the fuel tank, and an electronic component is disposed on the upper surface of the air cleaner,
A fuel tank mounting structure for a saddle-ride type vehicle, wherein a bottom surface of the fuel tank is in contact with the air cleaner via an elastic body, and a recess for storing the electronic component is formed on a bottom plate of the fuel tank.   A straddle-type vehicle comprising the fuel tank mounting structure according to any one of claims 1 to 5.

Images