Saddle type vehicle

Abstract

To provide a saddle-riding type vehicle which can easily and tightly mount a fuel tank having a vertically two-divided structure to a front end of a vehicle body frame, regardless of a mounting position of a front end of the vehicle body frame.SOLUTION: A saddle-riding type vehicle includes a vehicle body frame (11) having a head pipe (18) and a mono-backbone frame (31), and a fuel tank (29) arranged above the mono-backbone frame (31), wherein the fuel tank (29) includes a fuel tank body (80) where an upper tank body (60) and a lower tank body (70) are joined to each other, a tank recess (74) is formed in the lower tank body (70), a fuel tank side mounting part (86) having a first stay (91) and a second stay (92) is provided in the lower tank body (70), and a frame side mounting part (100) projecting to outside in a horizontal direction where the fuel tank side mounting part (86) is mounted is provided on the front end of the vehicle body frame (11).SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a saddle-ride type vehicle. [Background technology]

[0002] Conventionally, there has been known a saddle-type vehicle in which a fuel tank is disposed on top of a mono-backbone frame (see, for example, Patent Document 1). In Patent Document 1, a mounting part is provided in a gusset portion of the body frame below and rear of the head pipe, and a fuel tank disposed on top of a main frame serving as a mono-backbone frame is attached to and supported by the mounting part. In Patent Document 1, the mounting part is provided at a position corresponding to the lower edge of the main frame, and the fuel tank is attached so as to overlap the mounting part when viewed from the side of the vehicle body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5301374 Summary of the Invention [Problem to be solved by the invention]

[0004] In general, there is a demand for a fuel tank having an upper and lower two-piece structure that is easy to manufacture. However, as described in Patent Document 1, when the mounting portion at the front end of the body frame is located downward away from the upper edge of the mono-backbone frame, even if it is possible to install a fuel tank with a three-piece structure that allows a deep recessed shape to be formed in the bottom surface, it is difficult to install a fuel tank with a two-piece upper and lower structure, in which it is difficult to form a deep recessed shape in the bottom surface. The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a saddle-ride type vehicle in which a fuel tank having an upper and lower two-piece structure can be easily and securely attached to the front end of the body frame, regardless of the mounting position of the front end of the body frame. [Means for solving the problem]

[0005] A saddle-ride type vehicle includes a vehicle body frame including a head pipe and a mono-backbone frame extending rearward from the head pipe, and a fuel tank disposed on an upper portion of the mono-backbone frame, the fuel tank including a fuel tank body having an upper and lower two-piece structure with an upper tank body and a lower tank body joined together, the lower tank body having an upwardly recessed tank recess into which the mono-backbone frame enters, and the lower tank body including a first stay extending downward in the vertical direction of the vehicle body, and a second stay fixed outboard of the first stay in the horizontal direction of the vehicle body, extending from the lower tank body to the center in the horizontal direction of the vehicle body, and then extending downward in the vertical direction of the vehicle body. The tip end of the second stay is joined to the tip end of the first stay. A fuel tank side mounting portion is provided, and a frame side mounting portion protruding outward in the left-right direction of the vehicle is provided at the front end of the body frame rear of the head pipe, to which the fuel tank side mounting portion is attached. Effect of the Invention

[0006] To provide a saddle-type vehicle in which a fuel tank having an upper and lower two-piece structure can be easily and securely attached to the front end of a body frame regardless of the attachment position of the front end of the body frame. [Brief description of the drawings]

[0007] [Figure 1] 1 is a side view of a saddle-ride type vehicle according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a perspective view of a body frame according to a first embodiment. [Diagram 3] 1 is a perspective view showing a body frame and a fuel tank according to a first embodiment, as viewed from the front left. [Figure 4] FIG. 2 is a left side view showing the body frame and the fuel tank according to the first embodiment. [Diagram 5] 1 is a perspective view showing a body frame and a fuel tank according to a first embodiment, as viewed from the left rear. FIG. [Figure 6] 6 is a cross-sectional view taken along line VI-VI in FIG. 4. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. [Figure 10] XX line cross-sectional view of FIG. 7 and FIG. 8. [Figure 11] FIG. 11 is a perspective view of an upper tank body in a cross section corresponding to FIG. [Figure 12] FIG. 11 is a perspective view of a lower tank body near the cross section corresponding to FIG. 10. [Figure 13] FIG. 11 is a side view of a saddle-ride type vehicle according to a second embodiment of the present invention. [Figure 14] FIG. 11 is a perspective view of a body frame according to a second embodiment. [Figure 15] FIG. 11 is a perspective view showing a body frame and a fuel tank according to a second embodiment, as viewed from the front left. [Figure 16] FIG. 11 is a left side view showing a body frame and a fuel tank according to a second embodiment. [Figure 17] FIG. 11 is a perspective view showing a body frame and a fuel tank according to a second embodiment, as viewed from the left rear. [Figure 18] 2 is a front view showing the periphery of the front end portion of the body frame. FIG. [Figure 19] FIG. 2 is a perspective view of a main portion showing a vertical cross section along the axis of the mounting rod. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the description, directions such as front, rear, left, right, up and down are the same as directions relative to the vehicle body unless otherwise specified. In addition, the symbol FR in each drawing indicates the front of the vehicle body, the symbol UP indicates the upper side of the vehicle body, and the symbol LH indicates the left side of the vehicle body.

[0009] [Embodiment Mode] FIG. 1 is a side view of a saddle-ride type vehicle 10 according to an embodiment of the present invention. The saddle-type vehicle 10 is a vehicle that includes a body frame 11, a power unit 12 supported by the body frame 11, a front fork 14 that supports a front wheel 13 so as to be steerable, a swing arm 16 that supports a rear wheel 15, and a seat 17 for a passenger. The saddle-ride type vehicle 10 is a vehicle in which a rider sits astride a seat 17. The seat 17 is provided above the rear part of the body frame 11.

[0010] The body frame 11 includes a head pipe 18 provided at the front end of the body frame 11, a front frame 19 located rearward of the head pipe 18, and a rear frame 20 located rearward of the front frame 19. The front end of the front frame 19 is connected to the head pipe 18. The seat 17 is supported by a rear frame 20 .

[0011] The front fork 14 is supported by a head pipe 18 so as to be steerable left and right. The front wheel 13 is supported by an axle 13a provided at the lower end of the front fork 14. A steering handle 21 that is held by a rider is attached to the upper end of the front fork 14.

[0012] The swing arm 16 is supported by a pivot shaft 22 that is supported by the body frame 11. The pivot shaft 22 is a shaft that extends horizontally in the vehicle width direction. The pivot shaft 22 is inserted into the front end of the swing arm 16. The swing arm 16 swings up and down about the pivot shaft 22. The rear wheel 15 is supported by an axle 15 a provided at the rear end of a swing arm 16 .

[0013] The power unit 12 is disposed between the front wheels 13 and the rear wheels 15 and is supported by the body frame 11. The power unit 12 is an internal combustion engine. The power unit 12 includes a crankcase 23 and a cylinder portion 24 that houses a reciprocating piston. An exhaust device 25 is connected to an exhaust port of the cylinder portion 24. The output of the power unit 12 is transmitted to the rear wheels 15 by a driving force transmission member that connects the power unit 12 and the rear wheels 15 .

[0014] The saddle-ride type vehicle 10 also includes a front fender 26 that covers the front wheel 13 from above, a rear fender 27 that covers the rear wheel 15 from above, a step 28 on which a rider places his or her feet, and a fuel tank 29 that stores fuel used by the power unit 12. The front fender 26 is attached to the front fork 14. The rear fender 27 and the step 28 are provided below the seat 17. The fuel tank 29 is supported by the body frame 11.

[0015] FIG. 2 is a perspective view of the body frame 11 according to the first embodiment. The front frame 19 in this embodiment comprises a main frame 31 extending rearward and downward from the head pipe 18, a pair of left and right pivot frames 32 extending downward from the rear end of the main frame 31, a down frame 33 extending downward from a position on the head pipe 18 below the front end of the main frame 31, a pair of left and right lower frames 34 extending rearward from the lower end of the down frame 33 and connected to the lower ends of the pivot frame 32, gussets 35 that reinforce the connections between the head pipe 18, the main frame 31 and the down frame 33, and a cross member 36 that connects in the left-right direction between the lower ends of the pair of left and right pivot frames 32.

[0016] The rear frame 20 comprises a pair of left and right seat frames 41 extending upward to the rear from the rear end of the main frame 31 to the rear end of the vehicle body, a pair of left and right rear subframes 42 extending from the up-down middle portions of the left and right pivot frames 32 to the front-to-rear middle portions of the seat frames 41, a rear front cross member 43 connecting the front portions of the pair of left and right seat frames 41 in the left-to-right direction, a rear middle cross member 44 connecting the front-to-rear middle portions of the pair of left and right seat frames 41 in the left-to-right direction rear of the rear subframes 42, and a rear rear end cross member 45 connecting the rear ends of the pair of left and right seat frames 41 in the left-to-right direction.

[0017] 1, a body cover 50 is supported on the body frame 11. The body cover 50 includes a front cover 51 that covers the front and left and right parts of the front fork 14, a tank cover (exterior part) 52 that is provided behind the front cover 51 and covers the fuel tank 29, a pair of left and right center covers 53 that are provided below the tank cover 52 and cover the body from the outside in the left and right direction, and a pair of left and right rear covers 54 that are behind the center cover 53 and cover the lower part of the seat 17 from the outside in the left and right direction.

[0018] Fig. 3 is a perspective view showing the body frame 11 and fuel tank 29 according to the first embodiment from the front left. Fig. 4 is a left side view showing the body frame 11 and fuel tank 29 according to the first embodiment. Fig. 5 is a perspective view showing the body frame 11 and fuel tank 29 according to the first embodiment from the rear left. The main frame 31 is a mono-backbone frame. That is, the main frame 31 is a frame that extends rearward from the head pipe 18 in a single shape. The main frame 31 and the down frame 33 in this embodiment are cylindrical pipe frames. The main frame 31 and the down frame 33 are reinforced by gussets 35 at the connection portion with the head pipe 18. A fuel tank 29 is disposed on the upper portion of the main frame 31. The fuel tank 29 is covered from the outside by a tank cover 52, and is a so-called interior tank. That is, regardless of the shape of the fuel tank 29, the tank cover 52 can ensure the design of the saddle-ride type vehicle 10.

[0019] The fuel tank 29 includes a fuel tank body 80 in which fuel is stored. The fuel tank body 80 includes an upper tank body 60 that is bowl-shaped and concave upward, and a lower tank body 70 that is bowl-shaped and concave downward. The upper tank body 60 and the lower tank body 70 each include a flange-shaped opening end 61, 71, and the opening end 61 of the upper tank body 60 and the opening end 71 of the lower tank body 70 are joined, for example, by seam welding, to form the hollow fuel tank body 80. The fuel tank body 80 includes a seam portion (joint portion) 81 that is formed by the opening ends 61, 71. In this embodiment, the rear end of the seam portion 81 of the fuel tank 29 fixed to the vehicle body frame 11 is lower than the front end. The seam portion 81 extends linearly downward toward the rear in a side view of the vehicle body. The seam portion 81 is disposed above the main frame 31 in a side view of the vehicle body.

[0020] The upper tank body 60 has a front portion 62 extending upward toward the rear, and a rear portion 63 extending downward toward the rear from the rear end of the front portion 62. A cylindrical fuel filler opening 82 is provided in the front portion 62 of the upper tank body 60. The fuel filler opening 82 is closed by a fuel lid 83 so as to be openable and closable.

[0021] In a side view of the vehicle body, the lower tank body 70 has a front portion 72 extending downward toward the rear, and a rear portion 73 extending rearward and substantially horizontally from the rear end of the front portion 72. A fuel pump 84 is disposed in the rear portion 73 of the lower tank body 70. The fuel pump 84 is located above the rear portion of the main frame 31. The fuel pump 84 supplies fuel to the power unit 12.

[0022] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. An upwardly recessed tank recess 74 is formed in the bottom surface of the fuel tank 29, i.e., the lower tank body 70. The tank recess 74 is recessed in a substantially U-shape when viewed from the front, and extends in the front-rear direction. An upper portion of the main frame 31 enters the tank recess 74. The main frame 31 extends along the tank recess 74.

[0023] The fuel tank 29 has a front mounting portion (fuel tank side mounting portion) 86 that is attached to the body frame 11. The front mounting portion 86 is provided at the front of the lower tank body 70. The front mounting portion 86 has a first stay 91 and a second stay 92 that are provided corresponding to the tank recess 74. The first stay 91 and the second stay 92 are provided in pairs on the left and right sides of the tank recess 74, respectively.

[0024] The first stay 91 is formed in a bent plate shape and has a first base portion 91a fixed to the lower tank body 70 of the fuel tank 29, and a first tip portion 91b extending downward from the outer ends of the first base portion 91a in the left-right direction.

[0025] A second stay 92 is disposed on the outer side of the first stay 91 in the left-right direction. The second stay 92 is in the form of a bent plate. The second stay 92 has a second base portion 92a fixed to the lower tank body 70 of the fuel tank 29 and extending toward the center in the left-right direction, and a second tip portion 92b extending downward from an inner end of the second base portion 92a in the left-right direction. The second tip portion 92b is joined to the outer surface in the left-right direction of the first tip portion 91b of the first stay 91.

[0026] The first tip portion 91b and the second tip portion 92b extend forward and downward beyond the fuel tank main body 80. A tubular portion 93 extending in the left-right direction is provided on the first tip portion 91b and the second tip portion 92b. A grommet (elastic member) 94 is attached to a hole in the tubular portion 93. A flange pipe 95 is attached to the grommet 94 from the inside in the left-right direction. A bolt 97 as an example of a fastening member is inserted into the flange pipe 95 via a nut 96. The bolt 97 is fastened to a mounting rod (frame side mounting portion, protrusion portion) 100 fixed to the front end portion of the body frame 11. As a result, the front end portion of the fuel tank 29 is fixed to the front end portion of the body frame 11. The mounting rod 100 supports an equipment support structure 140 that supports an ABS (Antilock Braking System) modulator. The equipment support structure 140 is attached to the mounting rod 100 and is also attached to the front end portion of the body frame 11.

[0027] The mounting rod 100 of this embodiment is provided in the gusset 35, which is the front end of the body frame 11. The gusset 35 has a pair of left and right plate members 35a, 35b. The pair of left and right plate members 35a, 35b of the gusset 35 are provided so as to sandwich the respective pipe shapes of the rear end of the head pipe 18, the lower part of the front end of the main frame 31, and the rear part of the upper end of the down frame 33, and the rear ends of the plate members 35a, 35b are joined to form a hollow space between the plate members 35a, 35b. A cylindrical mounting rod 100 extending in the left-right direction is fixed in a state of penetrating the gusset 35. The mounting rod 100 is provided so as to protrude outward in the left-right direction from a flat side portion of the gusset 35. A female thread is formed at both longitudinal ends of the mounting rod 100 to which a bolt 97 can be fastened.

[0028] The mounting rod 100 is disposed rearward of the upper rear end of the head pipe 18. The mounting rod 100 is disposed forward and below the lower tank body 70. Therefore, the mounting rod 100 does not overlap the fuel tank main body 80 in a side view of the vehicle body. This ensures sufficient space for attaching the tank cover 52 between the head pipe 18 and the fuel tank 29. In addition, since the mounting rod 100 does not overlap the fuel tank main body 80 in a side view of the vehicle body, it becomes easier to attach the fuel tank 29 to the body frame 11.

[0029] The fuel tank 29 has a rear mounting portion 87. The rear mounting portion 87 extends rearward from the fuel tank body 80. In a side view of the vehicle body, the rear mounting portion 87 extends rearward and downward along the seam portion 81. The rear mounting portion 87 is fixed to the rear front cross member 43 provided in front of the seat frame 41. Therefore, fuel tank 29 of this embodiment is fixed to vehicle body frame 11 by front mounting portion 86 and rear mounting portion 87 at a position spaced apart from fuel tank body 80 in the front-rear direction when viewed from the side of the vehicle body.

[0030] Here, the fuel tank 29 is a fuel tank with a two-part structure, which is constructed by joining an upper tank body 60 and a lower tank body 70. In general, in a fuel tank with a two-part structure, a metal plate is pressed to form a bowl-shaped upper tank body and a lower tank body, which are joined together to manufacture the fuel tank with a two-part structure. For this reason, the tank recess is formed in the lower tank body while ensuring the depth of the bowl shape, so the tank recess tends to be shallow. In other words, it was difficult to attach a conventional fuel tank with a two-part structure to the mounting rod 100 located at a position spaced downward from the upper end of the main frame 31. In contrast, in this embodiment, the fuel tank 29 is provided with a front mounting portion 86 having a first stay 91 and a second stay 92, so that it can be firmly attached to the mounting rod 100.

[0031] In other words, when the mounting rod 100 is formed at a position spaced downward from the upper end of the main frame 31, a fuel tank that is easy to form a deep tank recess, i.e., a fuel tank having a three-part structure with an upper left tank body, an upper right tank body, and a lower tank body, is generally used. Therefore, by configuring the fuel tank 29 of this embodiment, it is possible to easily share the body frame with a vehicle frame in which a fuel tank having a three-part structure is used. Therefore, by using the fuel tank 29 of this embodiment, the body frame of a fuel tank having a three-part structure can be reused, and cost reduction can be expected.

[0032] FIG. 7 is a plan view of the fuel tank 29. The fuel tank 29 is formed in a generally rectangular shape that is generally symmetrical in plan view. The fuel tank 29 is wide at the front and narrows toward the rear in plan view. A fuel filler opening 82 is formed in the front portion 62 of the upper tank body 60 of the fuel tank 29.

[0033] A seat placement section 64 that is recessed downwards is formed in the rear section 63 of the upper tank body 60. The front end of the seat 17 is placed in the seat placement section 64 (see FIG. 1). A tank rib (rib) 65 extending in the front-rear direction is formed in the seat placement section 64. The tank rib 65 is formed in the center of the seat placement section 64. A plurality of tank ribs 65 are formed at intervals in the left-right direction. The tank ribs 65 reinforce the upper tank body 60. Therefore, even if a load acts on the upper tank body 60 via the seat 17, the upper tank body 60 is less likely to deform.

[0034] An engagement portion 81a that protrudes to the left front is formed on the left front of the seam portion 81 of the fuel tank main body 80. An engagement hole (hole) 81b that penetrates the seam portion 81 in the thickness direction is formed in the engagement portion 81a. The engagement hole 81b is configured to be able to pass and hold hoses (tubular members) 88, 89 (see FIG. 3) attached to the fuel tank 29. The hoses 88, 89 are, for example, drain hoses or breather hoses extending from the vicinity of the fuel filler port 82. This makes it difficult for the hoses 88, 89 to be pinched between the seam portion 81 and the tank cover 52 when the fuel tank 29 is covered with an exterior part, specifically, the tank cover 52, and makes it easier to protect the hoses 88, 89 attached to the fuel tank 29.

[0035] A substantially rectangular patch fixing portion 66 is formed behind the tank rib 65. The patch fixing portion 66 is recessed downward in a substantially rectangular shape. A substantially rectangular plate-shaped third patch 103 is fixed to the patch fixing portion 66.

[0036] A third stay 110 is fixed to the third patch 103. The third stay 110 extends in a generally U-shaped cross section. In detail, the third stay 110 has a plate-shaped front portion 111 extending upward toward the front, and a plate-shaped rear portion 112 extending rearward from the rear end of the front portion 111. Wall-shaped reinforcing portions 111a, 112a extending upward are formed on both the left and right ends of the front portion 111 and the rear portion 112, respectively.

[0037] A notch 111b that is cut out in a substantially U-shape toward the rear is formed in the center of the front portion 111 in the left-right direction. In other words, a pair of left and right extending portions 111c are formed in the front portion 111 by the notch 111b. The extending portions 111c are fixed to the third patch 103. A generally U-shaped notch 112b is formed in the center of the rear portion 112 in the left-right direction. In other words, a pair of left and right extending portions 112c are formed in the rear portion 112 by the notch 112b. The extending portions 112c are fixed to the fourth stay 120 below.

[0038] FIG. 8 is a bottom view of fuel tank 29. A fuel pump 84 is attached to the rear part 73 of the lower tank body 70 of the fuel tank 29. The fuel pump 84 is cylindrical and extends in the vertical direction. The fuel pump 84 is inserted into the fuel tank main body 80 through a circular pump hole formed in the lower tank body 70. The fuel pump 84 is fixed to the lower tank body 70 by bolting an annular pump mounting plate 85. A fuel hose (not shown) is connected to the lower part of the fuel pump 84.

[0039] Fig. 9 is an explanatory diagram of the front mounting portion 86. Fig. 9 shows the lower tank body 70 as viewed in the direction in which the main frame 31 extends. As shown in Figs. 6, 8 and 9, a first patch 101 in the form of a sheet metal is fixed to the front end of the lower tank body 70. The first patch 101 is fixed to the tank recess 74. The first patch 101 is in the form of a bent plate bent into a crank shape when viewed from the front. In detail, the first patch 101 has a pair of left and right flat contact portions (fixing portions) 101a, 101b that are fixed in contact with the bottom surface of the lower tank body 70, a separation portion 101c that is provided between the contact portions 101a, 101b and separated from the lower tank body 70, and standing wall portions 101d, 101e that are provided at both left and right ends of the separation portion 101c and connect the contact portions 101a, 101b.

[0040] In the first patch 101, the contact portions 101a and 101b are fixed to the lower tank body 70 by spot welding. Also, the first base portion 91a of the first stay 91 is welded to the spaced portion 101c. Therefore, a weld bead is formed in the spaced portion 101c of the first patch 101.

[0041] A second patch 102 in the form of a sheet metal is fixed to the outer side in the left-right direction of the first patch 101. The second patch 102 is fixed to the outer side in the left-right direction of the tank recess 74. The second patch 102 is in the form of a bent plate. In detail, the second patch 102 includes a flat contact portion (fixing portion) 102a fixed to the bottom surface of the lower tank body 70, a standing wall portion 102b formed at the inner end in the left-right direction of the contact portion 102a and extending in a direction away from the lower tank body 70, and a separating portion 102c extending inward in the left-right direction from the tip of the standing wall portion 102b. The separating portion 102c is separated from the lower tank body 70.

[0042] In the second patch 102, the contact portion 102a is fixed to the lower tank body 70 by spot welding. In addition, the second base portion 92a of the second stay 92 is welded to the spaced portion 102c. Therefore, a weld bead is formed in the spaced portion 102c of the second patch 102.

[0043] The first stay 91 and the second stay 92 are welded and fixed to the lower tank body 70 via the first patch 101 and the second patch 102, so that heat during welding is less likely to be transmitted to the lower tank body 70, which is prone to thinning. In addition, the first patch 101 and the second patch 102 are fixed by spot welding, so that they can be easily fixed with the minimum amount of heat required. Therefore, in the lower tank body 70, the influence of thermal stress caused by the welding and fixing of the first stay 91 and the second stay 92 can be suppressed. In addition, the first patch 101 and the second patch 102 make it easy to increase the connection area of ​​the first stay 91 and the second stay 92 to the lower tank body 70, so that direct stress concentration from the first stay 91 and the second stay 92 to the lower tank body 70 can be easily alleviated. The first stay 91, the first patch 101, the second stay 92, the second patch 102, the tubular portion 93, and the like constitute a front attachment portion 86 of the present embodiment.

[0044] In the front mounting portion 86, the tubular portion 93 is disposed within the lateral width of the tank recess 74 in the lateral direction. That is, the lateral position of the tubular portion 93 overlaps with the lateral position of the tank recess 74 of the lower tank body 70 in the lateral direction. The first stay 91, the second stay 92, and the lower tank body 70 form a substantially triangular enclosed shape when viewed in the extension direction of the main frame 31 (see FIG. 9 ) by a first tip portion 91b extending in the vertical direction of the first stay 91, a second base portion 92a extending in the horizontal direction of the second stay 92, and a bottom surface of the lower tank body 70 extending obliquely vertically. Thus, the first stay 91, the second stay 92, and the lower tank body 70 form a triangular space.

[0045] As shown in Fig. 8, a patch fixing portion 75 is formed at the rear end of the lower tank body 70. A fourth patch 104 is fixed to the patch fixing portion 75. A fourth stay 120 is fixed to the fourth patch 104. The fourth stay 120 extends in a generally U-shaped cross section. In detail, the fourth stay 120 has a plate-shaped main body portion 121 extending in the front-rear direction. Reinforcing portions 121a extending downward are formed on both the left and right ends of the main body portion 121.

[0046] A generally U-shaped cutout 121b is formed rearward in the center of the front end of the main body 121 in the left-right direction. In other words, a pair of left and right extending portions 121c are formed in the main body 121 by the cutout 121b. The extending portions 121c are fixed to the fourth patch 104.

[0047] The rear portion 112 of the third stay 110 is joined to the upper rear surface of the main body portion 121. A cylindrical connecting portion 122 extending in the left-right direction is provided on the lower rear surface of the main body portion 121 of the fourth stay 120. A shaft member 130 (see FIG. 4) extending in the left-right direction is inserted into the connecting portion 122. The shaft member 130 is fixed to the rear front cross member 43. The third stay 110, the third patch 103, the fourth stay 120, and the fourth patch 104 form a rear attachment portion 87 of the present embodiment.

[0048] Fig. 10 is a cross-sectional view taken along line XX in Fig. 7 and Fig. 8. Fig. 11 is a perspective view of the upper tank body 60 in the cross section corresponding to Fig. 10. A groove 67 recessed downward is formed in the patch fixing portion 66 of the upper tank body 60. The groove 67 is formed along the edge of the notch shape 111b and the extension portion 111c of the front portion 111 of the third stay 110 (see FIG. 7). The groove 67 separates the third patch 103 from the upper tank body 60. Therefore, the groove 67 forms in the flat third patch 103 an abutting portion (fixing portion) 103a that abuts against the upper tank body 60 and a spaced portion 103b that is spaced from the upper tank body 60. The third patch 103 is fixed to the upper tank body 60 by spot welding at the abutting portion 103a on the outer periphery side of the third patch 103. The third stay 110 is welded to the spaced portion 103b of the third patch 103. A weld bead is formed in the spaced portion 103b.

[0049] FIG. 12 is a perspective view of the lower tank body 70 near the cross section corresponding to FIG. As shown in Figs. 10 and 12, a groove 76 recessed upward is formed in the patch fixing portion 75 of the lower tank body 70. The groove 76 extends in the left-right direction. The groove 76 is formed along the notch shape 121b of the main body portion 121 of the fourth stay 120, and is formed so as to overlap the outer periphery of the extension portion 121c in a bottom view (see Fig. 8). The groove 76 separates the fourth patch 104 from the lower tank body 70. The groove 76 forms in the flat fourth patch 104 an abutting portion (fixing portion) 104a that abuts against the lower tank body 70 and a spaced portion 104b that is spaced from the lower tank body 70. The fourth patch 104 is fixed to the lower tank body 70 by spot welding at the abutting portion 104a on the outer periphery side. The fourth stay 120 is welded to the spaced portion 104b of the fourth patch 104. A weld bead is formed in the spaced portion 104b.

[0050] Therefore, like the front mounting portion 86, the rear mounting portion 87 can also suppress the effects of thermal stress caused by welding the third stay 110 and the fourth stay 120 to the upper tank body 60 and the lower tank body 70, which tend to become thin. Also, direct stress concentration from the third stay 110 and the fourth stay 120 to the upper tank body 60 and the lower tank body 70 can be easily alleviated.

[0051] As described above, according to the first embodiment to which the present invention is applied, in the saddle-ride type vehicle 10 including the body frame 11 including the head pipe 18 and the main frame 31 extending rearward from the head pipe 18, and the fuel tank 29 arranged on the upper part of the main frame 31, the fuel tank 29 includes a fuel tank main body 80 having an upper and lower two-piece structure in which an upper tank body 60 and a lower tank body 70 are joined, the lower tank body 70 is formed with a tank recess 74 that is recessed upward into which the main frame 31 enters, the lower tank body 70 is provided with a front mounting portion 86 including a first stay 91 extending downward in the vertical direction of the vehicle body and a second stay 92 that is fixed outward in the horizontal direction of the vehicle body than the first stay 91, extends from the lower tank body 70 to the center in the horizontal direction of the vehicle body and then extends downward in the vertical direction of the vehicle body, and a mounting rod 100 that protrudes outward in the horizontal direction of the vehicle body and to which the front mounting portion 86 is attached is provided at the front end of the body frame 11 behind the head pipe 18. With this configuration, the upper and lower two-piece fuel tank 29 can be easily and securely attached to the mounting rod 100 at the front end of the body frame 11 regardless of the position of the mounting rod 100 at the front end of the body frame 11.

[0052] In the present embodiment, the lower tank body 70, the first stay 91, and the second stay 92 form a triangular space when viewed from the front of the vehicle body. According to this configuration, the first stay 91 and the second stay 92 approach each other as they move away from the lower tank body 70, so that the attachment portion between the fuel tank 29 and the body frame 11 can be prevented from becoming larger in the left-right direction of the vehicle. This prevents attachment parts such as the first stay 91 and the second stay 92 from becoming larger, which is expected to reduce the weight and cost of the fuel tank 29. In addition, because the attachment portion between the fuel tank 29 and the body frame 11 can be prevented from becoming larger in the left-right direction of the vehicle, stress on the attachment portion due to a moment from the center of the left-right direction of the vehicle can be suppressed.

[0053] In this embodiment, the connection portion between the front mounting portion 86 and the mounting rod 100 is provided forward and below the fuel tank main body 80 in a side view of the vehicle body. According to this configuration, even when tank cover 52 is attached to fuel tank 29, sufficient space can be secured between head pipe 18 and fuel tank 29 to attach tank cover 52, ensuring ease of attachment of tank cover 52 and reducing design restrictions. Also, according to this configuration, the attachment location of fuel tank 29 to body frame 11 does not overlap fuel tank main body 80 in a side view of the vehicle body, making it easier to attach fuel tank 29 to body frame 11.

[0054] In addition, in this embodiment, there is a first patch 101 which integrally comprises abutment portions 101a, 101b fixed to the lower tank body 70 and a spaced portion 101c spaced from the lower tank body 70, and the first stay 91 is welded and fixed to the lower tank body 70 via the first patch 101. According to this configuration, the connection area between the first stay 91 and the fuel tank 29 can be easily increased by using the first patch 101, and stress concentration from the first stay 91 on the fuel tank 29 can be suppressed. In addition, since heat is less likely to be transmitted to the fuel tank 29 when the first stay 91 is welded, the effects of thermal stress on the fuel tank 29 can be reduced.

[0055] In addition, in this embodiment, a second patch 102 is provided which integrally comprises an abutment portion 102a fixed to the lower tank body 70 and a spaced portion 102c spaced from the lower tank body 70, and the second stay 92 is welded and fixed to the lower tank body 70 via the second patch 102. According to this configuration, the connection area between the second stay 92 and the fuel tank 29 can be easily increased by using the second patch 102, and stress concentration from the second stay 92 on the fuel tank 29 can be suppressed. In addition, since heat is less likely to be transmitted to the fuel tank 29 when the second stay 92 is welded, the effects of thermal stress on the fuel tank 29 can be reduced.

[0056] In addition, in this embodiment, there is provided a third stay 110 extending from the upper tank body 60 rearward in the fore-and-aft direction of the vehicle body, a third patch 103 integrally comprising an abutment portion 103a fixed to the upper tank body 60 and a spaced portion 103b spaced from the upper tank body 60, a fourth stay 120 extending from the lower tank body 70 rearward in the fore-and-aft direction of the vehicle body, and a fourth patch 104 integrally comprising an abutment portion 104a fixed to the lower tank body 70 and a spaced portion 104b spaced from the lower tank body 70, the third stay 110 being welded and fixed to the upper tank body 60 via the third patch 103, and the fourth stay 120 being welded and fixed to the lower tank body 70 via the fourth patch 104. According to this configuration, the rear of the fuel tank 29 can be fixed to the body frame 11 by the third stay 110 and the fourth stay 120, so that the fuel tank 29 can be fixed at the front and rear, and the fuel tank 29 can be firmly attached to the body frame 11. In addition, the use of patches 103, 104 makes it easy to increase the connection area between the stays 110, 120 and the fuel tank 29, and suppresses stress concentration from the stays 110, 120 on the fuel tank 29. In addition, since heat is less likely to be transmitted to the fuel tank 29 when the stays 110, 120 are welded, the effects of thermal stress on the fuel tank 29 can be reduced.

[0057] In this embodiment, the upper tank body 60 is provided with a tank rib 65 adjacent to the third patch 103, and a sheet 17 arranged so as to overlap the tank rib 65 in a plan view. According to this configuration, the provision of tank ribs 65 improves the rigidity of fuel tank 29, so that even when a load is applied to fuel tank 29 through seat 17, deformation of fuel tank 29 can be easily suppressed.

[0058] In this embodiment, the seam 81 between the upper tank body 60 and the lower tank body 70 is provided with an engagement hole 81b through which the hoses 88, 89 pass. According to this configuration, when the tank cover 52 is attached to the fuel tank 29, the hoses 88, 89 are less likely to be pinched between the tank cover 52 and the seam portion 81, and the hoses 88, 89 can be protected.

[0059] [Second embodiment] A second embodiment to which the present invention is applied will be described below. In this second embodiment, parts configured similarly to the first embodiment are given the same reference numerals and descriptions thereof will be omitted.

[0060] Fig. 13 is a side view of a saddle type vehicle 210 according to the second embodiment of the present invention. Fig. 14 is a perspective view of a body frame 211 according to the second embodiment. The saddle type vehicle 210 in the second embodiment is a different model from the saddle type vehicle 10 in the first embodiment. Accordingly, in this embodiment, the vehicle body frame 211 and the fuel tank 229 have shapes different from those of the vehicle body frame 11 and the fuel tank 29 in the first embodiment.

[0061] Here, with regard to the configuration of the saddle-ride type vehicle 210 in the second embodiment, the explanation of the configuration corresponding to the saddle-ride type vehicle 10 in the first embodiment will be omitted appropriately by adding a "2" to the third digit of the symbol in the first embodiment.

[0062] The front frame 219 of this embodiment comprises a main frame 231 extending rearward and downward from the head pipe 218, a pivot frame 232 extending downward from the rear end of the main frame 231, and a down frame 233 extending downward from a position on the head pipe 218 below the front end of the main frame 231.

[0063] The rear frame 220 comprises a pair of left and right seat frames 241 extending upward to the rear from the rear end of the main frame 231 to the rear end of the vehicle body, a pair of left and right rear subframes 242 extending from the vertical middle portion of the pivot frame 232 to the front-to-rear middle portion of the seat frames 241, a rear front cross member 243 connecting the front portions of the pair of left and right seat frames 241 in the left-right direction, and a rear rear end cross member 245 connecting the rear ends of the pair of left and right seat frames 241 in the left-right direction.

[0064] 13, a body cover 250 is supported on the body frame 211. The body cover 250 includes a front cover 251 that covers the periphery of the headlight, a tank cover (exterior part) 252 that is provided behind the front fork 214 and covers the fuel tank 229, a pair of left and right center covers 253 that are provided below the tank cover 252 and cover the outside of the body in the left-right direction, and a pair of left and right rear covers 254 that are behind the center cover 253 and cover the lower part of the seat 217.

[0065] Fig. 15 is a perspective view showing body frame 211 and fuel tank 229 according to the second embodiment, as viewed from the front left. Fig. 16 is a left side view showing body frame 211 and fuel tank 229 according to the second embodiment. Fig. 17 is a perspective view showing body frame 211 and fuel tank 229 according to the second embodiment, as viewed from the rear left. The main frame 231 is a mono-backbone frame. That is, the main frame 231 is a frame that extends rearward from the head pipe 218 in a single shape. The main frame 231 and the down frame 233 of this embodiment are press frames having a substantially rectangular cross section. That is, the main frame 231 and the down frame 233 are press frames having a substantially rectangular cross section formed by joining pressed metal plates at the left and right. The main frame 231 supports a fuel tank 229. The fuel tank 229 is covered from the outside with a tank cover 252, and is a so-called interior tank. That is, regardless of the shape of the fuel tank 229, the tank cover 252 can ensure the design of the saddle-ride type vehicle 210. The power unit 212 is supported between the lower end of the down frame 233 and the lower end of the pivot frame 232.

[0066] Fig. 18 is a front view showing the periphery of the front end portion of the body frame 211. Fig. 19 is a perspective view of the essential parts showing a vertical cross section along the axis of the mounting bar 200. Fuel tank 229 according to the second embodiment also has a front mounting portion 286 and a rear mounting portion 287 corresponding to front mounting portion 86 and rear mounting portion 87 of fuel tank 29 according to the first embodiment. That is, in the second embodiment as well, fuel tank 229 is fixed to body frame 211 by front mounting portion 286 and rear mounting portion 287 at a position spaced apart in the front-rear direction from fuel tank main body 280, when viewed from the side of the vehicle body.

[0067] More specifically, an upwardly recessed tank recess 274 is formed in the bottom surface of the fuel tank 229, i.e., the lower tank body 270. The tank recess 274 is recessed in a substantially U-shape when viewed from the front, and extends in the front-rear direction. An upper portion of the main frame 231 enters the tank recess 274. The main frame 231 extends along the tank recess 274.

[0068] The fuel tank 229 has a front mounting portion 286 that is attached to the body frame 211. The front mounting portion 286 is provided at the front of the lower tank body 270. The front mounting portion 286 has a first stay 291 and a second stay 292 that are provided corresponding to the tank recess 274. The first stay 291 and the second stay 292 are provided in pairs on the left and right sides of the tank recess 274, respectively.

[0069] The first stay 291 is formed in a bent plate shape. The first stay 291 has a first base portion 291a fixed to the lower tank body 270 of the fuel tank 229, and a first tip portion 291b extending downward from the outer end of the first base portion 291a in the left-right direction of the vehicle body.

[0070] A second stay 292 is disposed on the outer side of the first stay 291 in the left-right direction. The second stay 292 is in the form of a bent plate. The second stay 292 has a second base portion 292a fixed to the lower tank body 270 of the fuel tank 229 and extending toward the center in the left-right direction, and a second tip portion 292b extending downward from an inner end of the second base portion 292a in the left-right direction. The second tip portion 292b is joined to the outer surface of the first tip portion 291b of the first stay 291.

[0071] Here, in the second embodiment, a sheet metal patch 201 is fixed to the front end of the lower tank body 270. A pair of patches 201 are provided on both the left and right sides of the tank recess 274. The patch 201 is in the form of a bent plate bent into a crank shape when viewed from the front. The patch 201 has a pair of left and right flat contact portions (fixing portions) 201a, 201b that are fixed in contact with the bottom surface of the lower tank body 270, and a separating portion 201c that is provided between the contact portions 201a, 201b and separated from the lower tank body 70.

[0072] In the patch 201, the contact portions 201a and 201b are fixed to the lower tank body 270 by spot welding. In addition, a first base portion 291a of the first stay 291 and a second base portion 292a of the second stay 292 are welded to the spaced portion 201c. A weld bead is formed in the spaced portion 201c of the patch 201.

[0073] Thus, the front attachment portion 286 in the second embodiment is different in that a plurality of stays 291, 292 are welded to one patch 201, but is similar to the first embodiment in that the stays 291, 292 are welded to the spaced portion 201c of the patch 201. Therefore, in the lower tank body 270 which is prone to thinning, the influence of thermal stress due to the welding and fixing of the stays 291, 292 can be suppressed. Also, it becomes easier to alleviate direct stress concentration from the stays 291, 292 to the lower tank body 270.

[0074] First tip portion 291b and second tip portion 292b extend forward and downward beyond fuel tank main body 280. A tubular portion 293 extending in the left-right direction is formed in first tip portion 291b and second tip portion 292b. A grommet (elastic member) 294 is attached to a hole in tubular portion 293. A flange pipe 295 is attached to grommet 294 from the inside in the left-right direction. A bolt 297 as an example of a fastening member is inserted into flange pipe 295 via nut 296. Bolt 297 is fastened to mounting rod (frame side mounting portion, protrusion) 200 fixed to the front end portion of body frame 211. As a result, the front end portion of fuel tank 229 is fixed to the front end portion of body frame 211.

[0075] The mounting rod 200 in this embodiment is provided on a main frame 231 which is the front end portion of the body frame 211. That is, the cylindrical mounting rod 200 extending in the left-right direction is fixed to the main frame 231 in a state in which it penetrates the main frame 231. The mounting rod 200 is provided on a flat side portion of the main frame 231.

[0076] The mounting rod 200 is disposed rearward of the upper rear end of the head pipe 18. The mounting rod 200 is disposed forward and below the lower tank body 270. Therefore, in a side view of the vehicle body, the mounting rod 200 does not overlap the fuel tank main body 280 and is visible in a side view of the vehicle body. Therefore, a sufficient space for attaching the tank cover 252 can be secured between the head pipe 218 and the fuel tank 229. In addition, since the mounting rod 200 does not overlap the fuel tank main body 280 in a side view of the vehicle body, it becomes easier to attach the fuel tank 229 to the body frame 211. The first stay 291, the second stay 292, the tubular portion 293, the patch 201, and the like constitute a front attachment portion 286 of this embodiment.

[0077] The fuel tank 229 has a rear mounting portion 287. The rear mounting portion 287 extends rearward from the fuel tank main body 280. In a side view of the vehicle body, the rear mounting portion 287 extends rearward and downward along the seam portion 281. The rear mounting portion 287 is fixed to a rear front cross member 243 provided in front of the seat frame 241.

[0078] Therefore, in this embodiment as well, fuel tank 229 is provided with front mounting portion 286 having first stay 291 and second stay 292, so that it can be securely attached to mounting bar 200. Also, by using fuel tank 229 in this embodiment, it is possible to reuse the body frame of a fuel tank having a three-piece structure, and cost reduction can be expected.

[0079] As described above, according to the second embodiment to which the present invention is applied, in a saddle-ride type vehicle 210 including a vehicle body frame 211 including a head pipe 218 and a main frame 231 extending rearward from the head pipe 218, and a fuel tank 229 arranged on an upper portion of the main frame 231, the fuel tank 229 includes a fuel tank main body 280 having an upper and lower two-piece structure in which an upper tank body 260 and a lower tank body 270 are joined, and the lower tank body 270 includes an upper tank body 280 through which the main frame 231 enters. A tank recess 274 is formed in the lower tank body 270, and a front mounting portion 286 is provided on the lower tank body 270. The front mounting portion 286 includes a first stay 291 extending downward in the vertical direction of the vehicle body and a second stay 292 which is fixed outboard in the horizontal direction of the vehicle body further than the first stay 291, extends from the lower tank body 270 to the center in the horizontal direction of the vehicle body, and then extends downward in the vertical direction of the vehicle body. A mounting rod 200 protruding outboard in the horizontal direction of the vehicle body is provided at the front end of the body frame 211 rearward of the head pipe 218, to which the front mounting portion 286 is attached. According to this configuration, the fuel tank 229 having an upper and lower two-piece structure can be easily and securely attached to the front end of the body frame 11 regardless of the attachment position of the front end of the body frame 11.

[0080] In this embodiment, the connection portion between the front mounting portion 286 and the mounting rod 200 is provided forward and below the fuel tank main body 280 in a side view of the vehicle body. According to this configuration, even when tank cover 252 is attached to fuel tank 229, sufficient space can be secured between head pipe 218 and fuel tank 229 for attaching tank cover 252, ensuring ease of attachment of tank cover 252 and reducing design restrictions. Also, according to this configuration, the attachment location of fuel tank 229 and body frame 211 does not overlap fuel tank main body 280 in a side view of the vehicle body, making it easier to attach fuel tank 229 to body frame 211.

[0081] In this embodiment, a patch 201 is provided that integrally includes contact portions 201a and 201b fixed to the lower tank body 270 and a separated portion 201c separated from the lower tank body 270, and a first stay 291 and a second stay 292 are welded and fixed to the lower tank body 270 via the patch 201. In other words, the patch 201 is formed integrally with a first patch to which the first stay 291 is welded and a second patch to which the second stay 292 is welded.

[0082] [Other embodiments] The above-described embodiment merely shows one aspect of the present invention, and any modification and application can be made without departing from the spirit and scope of the present invention.

[0083] In the above embodiment, a configuration has been described in which contact portions 101a, 101b, 102a, 201a, 201b and spaced portions 101c, 102c, 201c are formed in the patches 101, 102, 201 by fixing the folded patches 101, 102, 201 to the flat surfaces of the fuel tank body 80, 280. Also, a configuration has been described in which contact portions 103a, 104a and spaced portions 103b, 104b are formed in the patches 103, 104 by fixing the flat patches 103, 104 to the uneven surface of the fuel tank body 80. In this way, by giving an uneven shape to either the patches 101-104, 201 or the fuel tank main body 80, 280 to which the patches 101-104, 201 are fixed, abutment portions and separation portions are formed in the patches 101-104, 201, and the shapes of the patches 101-104, 201 and the uneven shapes of the fuel tank main bodies 80, 280 are not limited.

[0084] In the above embodiment, a motorcycle having a front wheel 13 and a rear wheel 15 has been used as an example of saddle-ride vehicle 10, but the present invention is not limited to this, and the present invention can be applied to a three-wheel saddle-ride vehicle having two front or two rear wheels, or a saddle-ride vehicle having four or more wheels.

[0085] [Configuration supported by the above embodiment] The above embodiment supports the following configurations.

[0086] (Configuration 1) A saddle-ride type vehicle including a body frame having a head pipe and a mono-backbone frame extending rearward from the head pipe, and a fuel tank arranged on an upper portion of the mono-backbone frame, wherein the fuel tank includes a fuel tank body having an upper and lower two-piece structure with an upper tank body and a lower tank body joined together, the lower tank body has an upwardly recessed tank recess into which the mono-backbone frame enters, the lower tank body is provided with a fuel-tank-side mounting portion including a first stay extending downward in the vertical direction of the vehicle body and a second stay fixed outboard in the horizontal direction of the vehicle body further than the first stay, extending from the lower tank body to the center in the horizontal direction of the vehicle body and then extending downward in the vertical direction of the vehicle body, and the front end of the body frame behind the head pipe is provided with a frame-side mounting portion protruding outward in the horizontal direction of the vehicle body to which the fuel-tank-side mounting portion is attached. According to this configuration, it is possible to provide a saddle-type vehicle in which a fuel tank having an upper and lower two-piece structure can be easily and securely attached to the front end of the body frame regardless of the mounting position of the front end of the body frame.

[0087] (Configuration 2) The saddle-type vehicle according to configuration 1, wherein the lower tank body, the first stay, and the second stay form a triangular space when viewed from the front of the vehicle body. According to this configuration, the first stay and the second stay are shaped to approach each other as they move away from the lower tank body, so that the size of the attachment portion between the fuel tank and the body frame can be prevented from increasing in the left-right direction of the vehicle. This prevents the first stay, the second stay, and other attachment parts from increasing in size, which is expected to reduce the weight and cost of the fuel tank. In addition, because the size of the attachment portion between the fuel tank and the body frame can be prevented from increasing in the left-right direction of the vehicle, stress on the attachment portion due to the moment from the center of the left-right direction of the vehicle can be prevented.

[0088] (Configuration 3) A saddle-type vehicle as described in configuration 1 or 2, characterized in that a connection portion between the fuel tank side mounting portion and the frame side mounting portion is provided forward and lower of the fuel tank body in a side view of the vehicle body. According to this configuration, even when attaching exterior parts to the fuel tank, sufficient space can be secured between the head pipe and the fuel tank to attach the exterior parts, ensuring ease of attachment of the exterior parts and reducing design constraints. Furthermore, with this configuration, the mounting location of the fuel tank and the vehicle frame does not overlap with the fuel tank in a side view of the vehicle body, making it easier to mount the fuel tank.

[0089] (Configuration 4) A saddle-type vehicle as described in any one of configurations 1 to 3, characterized in that it has a first patch integrally having a fixed portion fixed to the lower tank body and a separated portion spaced apart from the lower tank body, and the first stay is welded and fixed to the lower tank body via the first patch. With this configuration, the connection area between the first stay and the fuel tank can be easily increased by using the first patch, and stress concentration from the first stay to the fuel tank can be suppressed. In addition, heat is less likely to be transmitted to the fuel tank when the first stay is welded, so the effects of thermal stress on the fuel tank can be reduced.

[0090] (Configuration 5) A saddle-type vehicle as described in any one of configurations 1 to 4, characterized in that it has a second patch integrally having a fixed portion fixed to the lower tank body and a separated portion spaced apart from the lower tank body, and the second stay is welded and fixed to the lower tank body via the second patch. With this configuration, the connection area between the second stay and the fuel tank can be easily increased by using the second patch, and stress concentration from the second stay on the fuel tank can be suppressed. In addition, heat is less likely to be transmitted to the fuel tank when the second stay is welded, so the effects of thermal stress on the fuel tank can be reduced.

[0091] (Structure 6) A saddle-type vehicle described in any one of structures 1 to 5, comprising a third stay extending from the upper tank body rearward in the fore-and-aft direction of the vehicle body, a third patch integrally comprising a fixed portion fixed to the upper tank body and a separated portion spaced from the upper tank body, a fourth stay extending from the lower tank body rearward in the fore-and-aft direction of the vehicle body, and a fourth patch integrally comprising a fixed portion fixed to the lower tank body and a separated portion spaced from the lower tank body, wherein the third stay is welded and fixed to the upper tank body via the third patch, and the fourth stay is welded and fixed to the lower tank body via the fourth patch. According to this configuration, the rear of the fuel tank can be fixed to the body frame by the third stay and the fourth stay, so that the fuel tank is fixed to the body frame at the front and rear, and the fuel tank can be firmly attached to the body frame. In addition, the patch makes it easy to increase the connection area between the stays and the fuel tank, and the concentration of stress from the stays on the fuel tank can be suppressed. In addition, the heat is less likely to be transmitted to the fuel tank when the stays are welded, so the effects of thermal stress on the fuel tank can be reduced.

[0092] (Configuration 7) A saddle-type vehicle as described in Configuration 6, characterized in that it further comprises a rib provided adjacent to the third patch in the upper tank body, and a seat arranged to overlap the rib in a planar view. According to this configuration, the rigidity of the fuel tank is improved by providing the ribs, so that even when a load is applied to the fuel tank through the seat, deformation of the fuel tank can be easily suppressed.

[0093] (Configuration 8) A saddle-type vehicle as described in any one of configurations 1 to 7, characterized in that a hole for passing a tubular member is provided at the joint between the upper tank body and the lower tank body. According to this configuration, when an exterior part is attached to the fuel tank, it is difficult for the exterior part to be pinched between the tubular member and the joint, and the tubular member can be protected. [Explanation of symbols]

[0094] 10 Saddle-type vehicles 11 Body frame 17 sheets 18 Head pipe 29 Fuel Tank 31 Main frame (mono backbone frame) 60 Upper tank body 65 Tank Rib (Rib) 70 Lower tank body 74 Tank recess 80 Fuel tank body 81 Seam (joint) 81b Engagement hole (hole) 86 Front mounting part (fuel tank side mounting part) 88 Hose (tubular member) 89 Hose (tubular member) 91 1st Stage 92 Second Stay 100 Mounting rod (frame side mounting part) 101 1st patch 101a Contact part (fixed part) 101b Contact part (fixed part) 101c Separation part 102 2nd patch 102a Contact part (fixed part) 102c Separation part 103 3rd patch 103a Contact part (fixed part) 103b Separation part 104 4th patch 104a Contact part (fixed part) 104b Separation part 110 3rd Stay 120 4th Stage 200 Mounting rod (frame side mounting part) 201 Patch 201a Contact part (fixed part) 201b Contact part (fixed part) 201c Separation part 210 Saddle-type vehicle 211 Body frame 218 Head pipe 229 Fuel Tank 231 Main Frame (Mono Backbone Frame) 260 Upper tank body 270 Lower tank body 274 Tank recess 280 Fuel tank body 286 Front mounting part (fuel tank side mounting part) 291 1st Stay 292 Second Stay

Claims

1. A saddle-type vehicle including a body frame (11, 211) including a head pipe (18, 218) and a mono-backbone frame (31, 231) extending rearward from the head pipe (18, 218), and a fuel tank (29, 229) disposed on an upper portion of the mono-backbone frame (31, 231), The fuel tank (29, 229) includes a fuel tank body (80, 280) having an upper and lower two-piece structure in which an upper tank body (60, 260) and a lower tank body (70, 270) are joined together, The lower tank body (70, 270) is formed with an upwardly recessed tank recess (74, 274) into which the mono-backbone frame (31, 231) enters, The lower tank body (70, 270) is provided with a first stay (91, 291) extending downward in the vertical direction of the vehicle body, and a second stay (92, 292) fixed to the outer side in the horizontal direction of the vehicle body than the first stay (91, 291), extending from the lower tank body (70, 270) to the center in the horizontal direction of the vehicle body, and then extending downward in the vertical direction of the vehicle body, and a fuel tank side mounting portion (86, 286) is provided in which a tip end portion (92b, 292b) of the second stay (92, 292) is joined to a tip end portion (91b, 291b) of the first stay (91, 291); A frame-side mounting portion (100, 200) protruding outward in the left-right direction of the vehicle body is provided at the front end of the vehicle frame (11, 211) rearward of the head pipe (18, 218) and to which the fuel tank-side mounting portion (86, 286) is attached. A saddle-type vehicle characterized by the above.

2. The lower tank body (70), the first stay (91), and the second stay (92) form a triangular space when viewed from the front of the vehicle body.

2. The saddle-type vehicle according to claim 1 .

3. A connection portion between the fuel tank side mounting portion (86, 286) and the frame side mounting portion (100, 200) is provided forward and below the fuel tank main body (80, 280) in a side view of the vehicle body.

3. The saddle-ride type vehicle according to claim 1 or 2.

4. a patch (101) integrally including a fixed portion (101a, 101b, 201a, 201b) fixed to the lower tank body (70, 270) and a separated portion (101c, 201c) separated from the lower tank body (70, 270); The first stay (91, 291) is fixed to the lower tank body (70, 270) by welding via the patch (101, 201).

3. The saddle-ride type vehicle according to claim 1 or 2.

5. a second patch (102, 201) integrally including a fixed portion (102a, 201a, 201b) fixed to the lower tank body (70, 270) and a spaced portion (102c, 201c) spaced from the lower tank body (70, 270); The second stay (92, 292) is fixed to the lower tank body (70, 270) by welding via the second patch (102, 201).

5. The saddle-type vehicle according to claim 4.

6. a third stay (110) extending rearward in the vehicle body longitudinal direction from the upper tank body (60); a third patch (103) integrally including a fixed portion (103a) fixed to the upper tank body (60) and a spaced portion (103b) spaced from the upper tank body (60); a fourth stay (120) extending rearward in the vehicle front-rear direction from the lower tank body (70); a fourth patch (104) integrally comprising a fixed portion (104a) fixed to the lower tank body (70) and a spaced portion (104b) spaced from the lower tank body (70); The third stay (110) is fixed to the upper tank body (60) by welding via the third patch (103), The fourth stay (120) is fixed to the lower tank body (70) by welding via the fourth patch (104).

3. The saddle-ride type vehicle according to claim 1 or 2.

7. a rib (65) provided adjacent to the third patch (103) in the upper tank body (60); A sheet (17) arranged to overlap the rib (65) in a plan view.

7. The saddle-ride type vehicle according to claim 6.

8. A hole (81b) for passing tubular members (88, 89) is provided at the joint (81) between the upper tank body (60) and the lower tank body (70).

2. The saddle-type vehicle according to claim 1 .

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