Saddle-riding type vehicle

Abstract

To compactly install a gas tank and a suspension, thereby achieving reduction in the size.SOLUTION: A saddle-riding type vehicle travels using gas fuel. The saddle-riding type vehicle is provided with: a vehicle body frame (10) forming a framework of a vehicle body; a long gas tank (60) for storing the gas fuel; and a suspension (36) for absorbing vibration of the vehicle body. The lower part of the vehicle body frame includes: a tank bracket (71) supporting the gas tank; and a suspension bracket (75) supporting the suspension. The gas tank is supported by the tank bracket, with the longitudinal direction thereof oriented in a front-rear direction, and the suspension is supported by the suspension bracket below the gas tank, with the longitudinal direction thereof oriented in the front-rear direction.SELECTED DRAWING: Figure 6

Description

[Technical field]

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

[0002] In recent years, fuel cell vehicles that run on electricity generated by a fuel cell have been developed. In fuel cell vehicles, hydrogen gas in a hydrogen tank and oxygen in the air undergo a chemical reaction in the fuel cell to generate electricity, and the generated electricity is supplied to a motor to drive the wheels. In addition to fuel cell vehicles, straddle-type vehicles equipped with gas-fueled engines that burn hydrogen gas as gas fuel and run using the combustion energy have also been developed (see, for example, Patent Document 1). In the straddle-type vehicle described in Patent Document 1, a gas tank is installed below the floorboard in front of the engine. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 04-283128 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in saddle-type vehicles, it is possible to consider a configuration in which the suspension is installed horizontally, but if a large gas tank is installed in front of the suspension, the vehicle will become larger, which may result in poor handling, an increase in vehicle weight, and poor cornering performance.

[0005] The present invention has been made in consideration of the above-mentioned points, and has an object to provide a saddle-type vehicle in which the gas tank and suspension can be installed compactly to achieve a compact size. [Means for solving the problem]

[0006] One embodiment of the saddle-type vehicle of the present invention is a saddle-type vehicle that runs on gas fuel, and is equipped with a body frame that forms the skeleton of the vehicle body, a long gas tank that stores the gas fuel, and a suspension that absorbs vibrations of the vehicle body, and the lower part of the body frame has a tank bracket that supports the gas tank and a suspension bracket that supports the suspension, and the gas tank is supported by the tank bracket with its longitudinal direction facing fore and aft, and the suspension is supported by the suspension bracket below the gas tank with its longitudinal direction facing fore and aft, thereby solving the above-mentioned problem. Effect of the Invention

[0007] According to one aspect of the saddle-type vehicle of the present invention, the suspension is positioned below the gas tank with the longitudinal direction of the gas tank and the suspension facing forward and backward under the body frame. The suspension is brought close to the gas tank, and the gas tank and the suspension are installed compactly, thereby making the saddle-type vehicle more compact. This improves the handling of the vehicle, suppresses an increase in the vehicle weight, and improves the vehicle's turning ability while traveling. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a left side view of the vehicle internal structure of the present embodiment. [Diagram 2] FIG. 2 is a right side view of the vehicle internal structure of the present embodiment. [Diagram 3] FIG. 2 is a left side view of the center portion of the vehicle body of the present embodiment. [Figure 4] FIG. 2 is a top view of the center part of the vehicle body of the present embodiment. [Diagram 5] FIG. 2 is a bottom view of the gas tank and its periphery according to the present embodiment. [Figure 6] FIG. 2 is a left side view of the gas tank and its surroundings according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A straddle-type vehicle according to one embodiment of the present invention runs on gas fuel. A vehicle body frame forms the framework of the vehicle body, and a tank bracket and a suspension bracket are provided on the lower part of the vehicle body frame. A long gas tank for storing gas fuel is supported on the tank bracket with its longitudinal direction facing forward and backward. A suspension for absorbing vibrations of the vehicle body is supported on the suspension bracket with its longitudinal direction facing forward and backward below the gas tank. With the longitudinal directions of the gas tank and suspension facing forward and backward at the lower part of the vehicle body frame, the suspension is positioned below the gas tank. The suspension is brought close to the gas tank, and the gas tank and suspension are installed compactly, thereby reducing the size of the straddle-type vehicle. This improves vehicle handling, suppresses an increase in vehicle weight, and improves the vehicle's turning ability while traveling. EXAMPLES

[0010] Hereinafter, a saddle-type vehicle of this embodiment will be described with reference to the accompanying drawings. Fig. 1 is a left side view of the internal structure of the vehicle of this embodiment. Fig. 2 is a right side view of the internal structure of the vehicle of this embodiment. In the following drawings, the arrow Fr indicates the front of the vehicle, the arrow Re indicates the rear of the vehicle, the arrow L indicates the left side of the vehicle, and the arrow R indicates the right side of the vehicle.

[0011] As shown in Figures 1 and 2, a saddle-type vehicle 1 is configured by mounting various covers (not shown) as the exterior of the vehicle body to a body frame 10 that forms the skeleton of the vehicle body. A head pipe 11 is provided at the front end of the body frame 10, and a support frame 12 extends diagonally rearward and downward from an upper portion of the head pipe 11. A pair of first down frames 13 branch off to the left and right and extend downward from a lower portion of the support frame 12, and a pair of second down frames 14 branch off to the left and right and extend downward from a lower portion of the head pipe 11. A pair of main frames 15 are connected to the lower portions of the pair of first and second down frames 13, 14.

[0012] The pair of main frames 15 extend toward the rear of the vehicle, and their middle portions are connected by an upper bridge 16. A pair of asymmetrical side frames 17 extend downward from the front ends of the pair of main frames 15. Each side frame 17 is bent rearward under the vehicle and then extends diagonally upward and rearward toward the rear portions of the pair of main frames 15. The pair of main frames 15 and the pair of side frames 17 form the front half of the body frame 10 into a cradle shape. A pair of footboards 18 are attached to the pair of side frames 17.

[0013] A pair of seat frames 19 extend rearward from the rear portions of the pair of main frames 15. The distance between the pair of seat frames 19 increases toward the middle of each frame and then decreases toward the rear ends of each frame. The pair of seat frames 19 are formed in an arch shape, and the rear ends of the pair of seat frames 19 are connected to each other. The front portions of the pair of seat frames 19 are connected by an upper bridge 21. The rear portions of the pair of side frames 17 are connected to the upper bridge 21, and the upper bridge 21 is supported from below by the pair of side frames 17.

[0014] A pair of asymmetric lower frames 22 extend rearward from the lower portions of the pair of side frames 17. The rear ends of the pair of lower frames 22 are connected by a lower bridge 23. A left subframe 28 extends diagonally upward and rearward from the left end of the lower bridge 23, and the left subframe 28 supports the seat frame 19 from below. A side bridge 25 connects the right end of the lower bridge 23 to an intermediate portion of the right side frame 17. A right subframe 29 extends diagonally upward and rearward from the intermediate portion of the side bridge 25, and the right subframe 29 supports the seat frame 19 from below.

[0015] A front fork 33 is supported on the head pipe 11 so as to be steerable, and a front wheel 34 is supported rotatably on the lower part of the front fork 33. A long gas tank 60 is installed inside a cradle portion in the front half of the body frame 10. Gas fuel such as hydrogen is stored in the gas tank 60, and the inflow and outflow of the gas fuel is controlled by a tank valve 62 at the rear of the tank. The gas fuel is supplied from the tank valve 62 to an injector (not shown) above the unit swing engine (engine) 41 via fuel system components such as multiple pipes, a regulator 64, and a fuel hose 66.

[0016] A unit swing engine 41 is swingably supported on the support plates 31 of the left and right subframes 28, 29. The unit swing engine 41 is operated by combustion energy of gas fuel supplied from a gas tank 60. The cylinder axis of the unit swing engine 41 is tilted forward and close to horizontal, and a cylinder assembly 43 extends toward the front of the vehicle from a crankcase 42. The cylinder assembly 43 is inserted between the left subframe 28 and the right subframe 29, and the front end of the cylinder assembly 43 is brought close to a tank valve 62 of the gas tank 60.

[0017] Intake system parts such as an air cleaner 51 are connected to the upper part of the cylinder assembly 43, and exhaust system parts such as an exhaust pipe 56 and a muffler 58 are connected to the lower part of the cylinder assembly 43. A CVT cover 47 is attached to the left side of the crankcase 42. The rear wheel 35 is rotatably supported at the rear part of the CVT cover 47. A belt-type continuously variable transmission (not shown) is housed inside the CVT cover 47, and the driving force of the unit swing engine 41 is transmitted to the rear wheel 35 via the belt. The muffler 58, CVT cover 47, rear wheel 35, and unit swing engine 41 are all swung together.

[0018] Meanwhile, the unit swing engine 41 is connected to the lower part of the body frame 10 via the suspension 36. Since the suspension 36 extends in the front-rear direction, if a large gas tank 60 is installed in front of the suspension 36, the wheelbase may be extended to avoid interference between the suspension 36 and the gas tank 60, resulting in an increase in the size of the vehicle. Therefore, in this embodiment, the gas tank 60 and the suspension 36 are supported on the lower part of the body frame 10 so that the rear part of the gas tank 60 and the front part of the suspension 36 overlap in the vertical direction.

[0019] The peripheral structure of the unit swing engine will be described with reference to Figures 3 and 4. Figure 3 is a left side view of the center part of the vehicle body of this embodiment. Figure 4 is a top view of the center part of the vehicle body of this embodiment.

[0020] 3 and 4, the cylinder assembly 43 of the unit swing engine 41 is formed by stacking a cylinder 44, a cylinder head 45, and a cylinder head cover 46. An intake system is installed above the cylinder head 45. The intake system includes an air cleaner 51, a U-shaped outlet tube 52, a throttle body 53, and an intake pipe 54. Air is sent from the air cleaner 51 through the outlet tube 52 to the throttle body 53, and after the intake amount is adjusted by the throttle body 53, the air is supplied to the intake port of the cylinder head 45 through the intake pipe 54.

[0021] An exhaust port is formed at the bottom of the cylinder head 45, and an exhaust pipe 56 serving as an exhaust device is connected to the exhaust port. The exhaust pipe 56 curves rearward from the bottom surface of the cylinder head 45, then passes along the right side of the crankcase 42 and extends toward the rear of the vehicle. A muffler 58 (see FIG. 2) inclined diagonally upward and rearward on the right side of the rear wheel 35 is connected to the rear end of the exhaust pipe 56. Exhaust gas flows into the exhaust pipe 56 from the exhaust port of the unit swing engine 41, flows rearward through the exhaust pipe 56, and is then discharged to the outside from the muffler 58.

[0022] A link mechanism 37 for the suspension 36 is provided below the cylinder head 45. The link mechanism 37 has a link lever 38 that is arc-shaped in a side view, and an intermediate portion of the link lever 38 is swingably connected to the link bracket 32 ​​of the body frame 10. An upper end portion of the link lever 38 is swingably connected to a lower portion of the crankcase 42 via a link arm 39, and a lower end portion of the link lever 38 is connected to a suspension bracket 75 of the body frame 10 via the suspension 36. The suspension 36 expands and contracts in accordance with the swing of the unit swing engine 41, thereby absorbing vibrations transmitted to the vehicle body.

[0023] A gas tank 60 is installed in front of the unit swing engine 41. A tank body 61 of the gas tank 60 is formed in a cylindrical shape, and both ends of the tank body 61 are bulged out in a semi-spherical shape. The longitudinal direction of the tank body 61 is oriented in the front-rear direction, and the tank body 61 is slightly tilted so that the front end of the tank body 61 is higher than the rear end. The gas tank 60 is supported on the lower part of the vehicle body frame 10 via a pair of front and rear tank brackets 71, 72. Bands 73, 74 are attached to the pair of tank brackets 71, 72, and the outer circumferential surface of the tank body 61 is fastened by the bands 73, 74.

[0024] A tank valve 62 is installed at the rear end of the tank body 61, and a regulator 64 is connected to a relief valve pipe 63 extending diagonally upward and rearward from the bottom of the tank valve 62. When the pressure of the gas fuel reaches or exceeds a predetermined pressure, the valve of the regulator 64 opens to adjust the pressure of the gas fuel. A fuel fill port 77 is installed at the top of the gas tank 60, and the top of the tank valve 62 is connected to a fill pipe 78 extending diagonally downward and rearward from the fuel fill port 77. Gas fuel is filled into the tank from the fuel fill port 77 through the tank valve 62. A radiator 30 for cooling the engine is installed in front of the gas tank 60.

[0025] An injector joint 68 is connected to the regulator 64 via an upstream pipe 65, a fuel hose 66, and a downstream pipe 67. The upstream pipe 65 and the downstream pipe 67 are formed of a hard pipe material such as metal, and the fuel hose 66 is formed of a soft rubber hose. The upstream pipe 65 crosses below the tank valve 62 and extends from the regulator 64 on the left side of the vehicle body to the right side of the vehicle body. On the right side of the vehicle body, the lower end of the fuel hose 66 is connected to the upstream pipe 65, and the fuel hose 66 extends upward through the right side of the gas tank 60. The upper end of the fuel hose 66 is connected to an injector joint 68 above the cylinder head 45 via the downstream pipe 67.

[0026] In this way, gas fuel is supplied from the tank valve 62 of the gas tank 60 through the relief valve pipe 63, the regulator 64, the upstream piping 65, the fuel hose 66, and the downstream piping 67 to the unit swing engine 41. A protective bridge 81 that connects the right lower frame 22 and the left side frame 17 is provided behind the tank valve 62. The protective bridge 81 extends obliquely so as to avoid the regulator 64 and the link mechanism 37. When the saddle riding type vehicle 1 receives an impact from behind, the protective bridge 81 protects the tank valve 62 from rear parts such as the link mechanism 37.

[0027] The layout of the gas tank will be described with reference to Figures 5 and 6. Figure 5 is a bottom view of the gas tank and its periphery in this embodiment. Figure 6 is a left side view of the gas tank and its periphery in this embodiment. In the following description, the left side frame and lower frame are given the symbol L, and the right side frame and lower frame are given the symbol R.

[0028] As shown in Fig. 5, a pair of frame portions of the body frame 10 are located on both sides of the gas tank 60, and this pair of frame portions is formed asymmetrically by a pair of side frames 17L, 17R and a pair of lower frames 22L, 22R. At the lower part of the left frame portion, the lower edge portion of the side frame 17L is long and the lower frame 22L is short, and at the lower part of the right frame portion, the lower edge portion of the side frame 17R is short and the lower frame 22R is long. The lower edge portion of the left side frame 17L is longer than the lower edge portion of the right side frame 17R, and the left lower frame 22L is shorter than the right lower frame 22R.

[0029] A rear end of the left lower frame 22L and a rear end of the right lower frame 22R are connected by a lower bridge 23. A rear side of the lower edge portion of the left side frame 17L and a front side of the right lower frame 22R are connected by a lower bridge (bridge portion) 24. A lower edge portion of the left side frame 17L and a lower edge portion of the right side frame 17R are connected by a pair of lower bridges 26, 27. The rigidity of the vehicle body frame 10 is increased by connecting the pair of side frames 17L, 17R and the pair of lower frames 22L, 22R via multiple lower bridges 23, 24, 26, 27.

[0030] 5 and 6, a tank bracket 71 is attached to the upper surface of the lower edge of the left side frame 17L and the upper surface of the right lower frame 22R near the lower bridge 24. A tank bracket 72 is attached to the upper surface of the lower edges of the pair of side frames 17L, 17R near the lower bridge 26. The tank bracket 71 connects the lower edge of the left side frame 17L to the lower frame 22R, and the tank bracket 72 connects the lower edges of the pair of side frames 17L, 17R. The tank brackets 71, 72 reinforce the body frame 10, increasing its rigidity.

[0031] With the gas tank 60 facing forward and backward, the front side of the gas tank 60 is supported by tank bracket 72, and the rear side of the gas tank 60 is supported by tank bracket 71. The support surfaces of tank brackets 71, 72 are formed in an arc shape in front view along the outer surface of the gas tank 60. The support surface of the front tank bracket 72 is higher than the support surface of the rear tank bracket 71, and the gas tank 60 is tilted so that the rear side of the gas tank 60 is slightly lower than the front side. Bands 73, 74 are attached to the tank brackets 71, 72, and the gas tank 60 is held in place by tightening the bands 73, 74.

[0032] A suspension bracket 75 is provided on the lower bridge 24, and a link bracket 32 ​​is provided on the lower bridge 23. The suspension bracket 75 protrudes diagonally downward and rearward from the lower bridge 24, and a front end of a suspension 36 is swingably supported by the suspension bracket 75. The link bracket 32 ​​protrudes diagonally upward and frontward from the lower bridge 23, and a rear end of the suspension 36 is swingably supported by the link bracket 32 ​​via a link lever 38. When viewed from below, the suspension bracket 75 and the link bracket 32 ​​face each other in the front-to-rear direction.

[0033] With the longitudinal direction of the suspension 36 facing forward and backward, the front end of the suspension 36 is supported by the suspension bracket 75, and the rear end of the suspension 36 is supported by the lower part of the link lever 38. The support position of the suspension bracket 75 is lower than the support position of the link lever 38, and the suspension 36 is tilted so that the rear side of the suspension 36 is higher than the front side. The suspension 36 is tilted in the opposite direction to the gas tank 60, but a sufficient gap is secured between the suspension 36 and the gas tank 60. The front-to-rear length of the installation space is reduced by the amount that the gas tank 60 and suspension 36 are tilted.

[0034] A suspension bracket 75 is positioned below the tank bracket 71, and a front end of the suspension 36 is supported by the suspension bracket 75 below the gas tank 60. The gas tank 60 is supported above the lower bridge 24 by the tank bracket 71, and the suspension 36 is supported below the lower bridge 24 by the suspension bracket 75. The support points of the tank bracket 71 and the suspension bracket 75 are concentrated, so that most of the suspension 36 is positioned below the gas tank 60, and the gas tank 60 and the suspension 36 are installed compactly on the body frame 10.

[0035] The front end of the suspension 36 is supported in the support hole 76 of the suspension bracket 75, and the rear end of the tank bracket 71 is located rearward of the support hole 76 of the suspension bracket 75. The rear tank bracket 71 overlaps the front end of the suspension 36 from above, so that the rear side of the gas tank 60 is supported by the tank bracket 71. The distance between the front and rear tank brackets 71, 72 is widened, so that the gas tank 60 is stably held. Also, the suspension 36 is installed using the space below the gas tank 60, so that the wheelbase of the saddle-type vehicle 1 is shortened.

[0036] As described above, according to the saddle riding type vehicle 1 of this embodiment, the suspension 36 is positioned below the gas tank 60 with the longitudinal directions of the gas tank 60 and the suspension 36 facing forward and backward under the body frame 10. The suspension 36 is brought close to the gas tank 60, and the gas tank 60 and the suspension 36 are installed compactly, thereby achieving a reduction in the size of the saddle riding type vehicle 1. This improves the handling of the vehicle, suppresses an increase in the vehicle weight, and improves the turning ability of the vehicle while traveling.

[0037] In this embodiment, the gas tank and the suspension are inclined, but the gas tank and the suspension may be supported with their longitudinal directions facing forward and backward. For example, the gas tank and the suspension may be supported horizontally.

[0038] In this embodiment, the front tank bracket is provided on the lower edge portions of the left and right side frames, and the rear tank bracket is provided on the lower edge portion of the left side frame and the right lower frame, but the tank bracket may be provided on the lower portion of the vehicle body frame. For example, the tank bracket may be provided on the lower bridge.

[0039] In this embodiment, the suspension bracket is provided on the lower bridge, but the suspension bracket may be provided on the lower part of the body frame. For example, the suspension bracket may be provided on the lower edge of the lower frame or the side frame. The suspension bracket may also be provided on the tank bracket.

[0040] In addition, in this embodiment, a unit swing engine is exemplified as the engine, but the engine is not limited to a unit swing engine as long as it is operated by the combustion energy of gas fuel.

[0041] Further, in this embodiment, the engine is a hydrogen engine using hydrogen gas, but it may be another gas fuel engine using other gas fuel such as methane gas or propane gas.

[0042] Further, in this embodiment, a single gas tank is provided in the saddle riding type vehicle, but a plurality of gas tanks may be provided in the saddle riding type vehicle.

[0043] In addition, in this embodiment, the gas tank is formed into a cylindrical shape with both ends bulging out into a hemisphere, but the shape of the gas tank is not limited as long as the gas tank has a shape capable of storing gas fuel.

[0044] The layout of the gas tank in this embodiment is not limited to the above-mentioned saddle-ride type vehicle, and may be adopted in other types of saddle-ride type vehicles. Note that a saddle-ride type vehicle is not limited to vehicles in general in which the rider sits astride the seat, but also includes scooter-type vehicles in which the rider does not sit astride the seat.

[0045] As described above, the first embodiment is a saddle-type vehicle (1) that runs on gas fuel, and includes a body frame (10) that forms the framework of the vehicle body, a long gas tank (60) that stores gas fuel, and a suspension (36) that absorbs vibrations of the vehicle body. The lower part of the body frame has a tank bracket (71) that supports the gas tank and a suspension bracket (75) that supports the suspension, and the gas tank is supported by the tank bracket with its longitudinal direction facing forward and backward, and the suspension is supported by the suspension bracket below the gas tank with its longitudinal direction facing forward and backward. According to this configuration, the suspension is positioned below the gas tank with the longitudinal directions of the gas tank and suspension facing forward and backward at the lower part of the body frame. The suspension is brought close to the gas tank, and the gas tank and suspension are installed compactly, thereby reducing the size of the saddle-type vehicle. This improves the handling of the vehicle, suppresses an increase in vehicle weight, and improves the turning ability of the vehicle when traveling.

[0046] In the second aspect, in the first aspect, the suspension bracket is located below the tank bracket. With this configuration, the support points of the tank bracket and the suspension bracket are concentrated, and the gas tank and suspension are installed compactly on the body frame.

[0047] In the third aspect, in the first or second aspect, the tank brackets are a pair of tank brackets spaced apart from each other in the front and rear, the front end of the suspension is supported by the support hole of the suspension bracket, and the rear end of the rear tank bracket is located rearward of the support hole of the suspension bracket. With this configuration, the rear tank bracket overlaps the front end of the suspension from above, so that the rear side of the gas tank is supported by the tank bracket. The distance between the front and rear tank brackets is widened, and the gas tank is stably held.

[0048] In a fourth aspect, in any one of the first to third aspects, the vehicle body frame has a pair of frame parts (lower sides of the side frames 17L, 17R and the lower frames 22L, 22R) located on both sides of the gas tank and a bridge part (24) connecting the lower parts of the pair of frame parts, a tank bracket connects the lower parts of the pair of frame parts, and a suspension bracket is provided on the bridge part. With this configuration, the vehicle body frame is reinforced by the tank bracket, increasing its rigidity.

[0049] Although the present embodiment has been described, other embodiments may be made by combining the above-described embodiments and modifications in whole or in part.

[0050] In addition, the technology of the present invention is not limited to the above examples, and may be modified, substituted, or altered in various ways without departing from the spirit of the technical idea. Furthermore, if the technical idea can be realized in a different way due to the progress of technology or a different technology derived therefrom, the invention may be implemented using that method. Therefore, the claims cover all embodiments that may be included within the scope of the technical idea. [Explanation of symbols]

[0051] 1: Saddle-type vehicle 10: Body frame 17: Side frame (frame part) 22: Lower frame (frame part) 24: Lower bridge (bridge section) 36: Suspension 60: Gas tank 71: Tank bracket 72: Tank bracket 75: Suspension bracket 76: Suspension bracket support hole

Claims

1. A saddle-type vehicle that runs on gas fuel, A body frame that forms the skeleton of the vehicle body; A long gas tank for storing gas fuel; A suspension that absorbs vibrations of the vehicle body; the lower part of the body frame has a tank bracket that supports the gas tank and a suspension bracket that supports the suspension, a gas tank supported by the tank bracket with its longitudinal direction facing forward and backward, and a suspension supported by the suspension bracket below the gas tank with its longitudinal direction facing forward and backward.

2. 2. The straddle-type vehicle according to claim 1, wherein the suspension bracket is located below the tank bracket.

3. The tank bracket is a pair of tank brackets spaced apart from each other in the front and rear directions, a front end of the suspension is supported in a support hole of the suspension bracket, 3. The straddle-type vehicle according to claim 1, wherein a rear end of a rear tank bracket is located rearward of the support hole of the suspension bracket.

4. The vehicle body frame has a pair of frame portions located on either side of the gas tank and a bridge portion connecting lower portions of the pair of frame portions, 3. The straddle-type vehicle according to claim 1, wherein the tank bracket connects lower portions of the pair of frame portions, and the suspension bracket is provided on the bridge portion.

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