Motorcycle

Abstract

To provide a motorcycle that is able to protect a battery from external force and is able to effectively cool the battery.SOLUTION: A motorcycle of the present disclosure includes: an engine E that is a drive source; a vehicle body frame FR that supports the engine E; and a battery 60 that is disposed in front of the engine E and charged with power of the engine E. The vehicle body frame FR has a pair of frame pieces 1b, left and right. The battery 60 is disposed between the right and left frame pieces 1b in a plan view, and a part of the battery overlaps the frame pieces 1b in a side view.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a motorcycle equipped with at least an engine as a drive source. [Background technology]

[0002] Some motorcycles equipped with at least an engine as a drive source are equipped with a battery (for example, Patent Document 1). Specifically, electricity generated by a generator using the engine's power is charged into the battery. The battery is, for example, a battery for a control power source or a battery that drives an electric motor that is the drive source of the motorcycle. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2019 / 235037 Summary of the Invention [Problem to be solved by the invention]

[0004] When such a battery is mounted on a motorcycle, it is necessary to protect the battery from external forces and ensure the battery's cooling performance.

[0005] The disclosure of the present application provides a motorcycle in which the battery is protected from external forces and can be cooled effectively. [Means for solving the problem]

[0006] A motorcycle according to one aspect of the present disclosure includes an engine as a drive source, a body frame supporting the engine, and a battery disposed in front of the engine and charged by power from the engine. The body frame has a pair of left and right frame pieces. The battery is disposed between the left and right frame pieces in a plan view, and a portion of the battery overlaps the frame pieces in a side view. [Effects of the Invention]

[0007] In the motorcycle of the present disclosure, the battery is disposed between the left and right frame pieces in a plan view, and partially overlaps the frame pieces in a side view. Therefore, the frame pieces protect the battery from external forces from the sides of the vehicle body. Furthermore, because the battery is disposed in front of the engine, the battery can be effectively cooled by the wind generated during riding. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a right side view showing a motorcycle according to a first embodiment of the present disclosure. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 2 is an enlarged side view showing a main part of FIG. 1. [Figure 5] FIG. 10 is a left side view showing a modified example of the motorcycle. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, preferred embodiments of the present disclosure will be described with reference to the drawings. In this specification, "right" and "left" refer to "right" and "left" as seen by a driver in a vehicle. In other words, the left-right direction coincides with the vehicle width direction. Furthermore, "front" and "rear" refer to "front" and "rear" in the direction of travel of the vehicle. In other words, the longitudinal direction of the vehicle body coincides with the fore-and-aft direction of the vehicle. In the vehicle width direction, the inner side in the vehicle width direction refers to the side facing the vehicle body centerline extending in the fore-and-aft direction, and the outer side in the vehicle width direction refers to the side away from the vehicle body centerline.

[0010] Fig. 1 is a right side view of a motorcycle according to a first embodiment of the present disclosure, Fig. 2 is a left side view thereof, and Fig. 3 is a plan view. As shown in Fig. 1, the motorcycle of this embodiment is equipped with a power unit PU having an internal combustion engine E as a first power source and an electric motor M as a second power source. In other words, the motorcycle of this embodiment can run using only the internal combustion engine E, only the electric motor M, or both the engine E and the electric motor M at the same time, depending on the driving mode.

[0011] In this embodiment, the body frame FR of the motorcycle is a frame structure in which frame members are connected by welding. The body frame FR has a main frame 1 that forms a front half and a rear frame 2 that forms a rear half. The main frame 1 extends from a head pipe 4 at its front end, sloping downward toward the rear. The rear frame 2 extends from the rear end of the main frame 1, sloping upward toward the rear.

[0012] The main frame 1 has a first frame piece 1a extending rearward from an upper portion of the head pipe 4, and a second frame piece 1b extending rearward from a lower portion of the head pipe 4. The main frame 1 further has a plurality of reinforcing frame pieces 1c connecting the first frame piece 1a and the second frame piece 1b.

[0013] As shown in Figure 3, a pair of first frame pieces 1a and second frame pieces 1b are provided on the left and right sides. The rear ends of the left and right first frame pieces 1a, 1a are connected by a first cross frame 6 extending in the vehicle width direction. An engine mount 8 is provided at the rear end of each second frame piece 1b. In this embodiment, the engine mount 8 is a cylindrical member having an axis in the vehicle width direction.

[0014] The front end of the rear frame 2 is connected to the first cross frame 6 and extends rearward from the first cross frame 6. The rear frame 2 also has a pair of left and right rear frame pieces 2a, 2a. The rear ends of the left and right rear frame pieces 2a, 2a are connected by a second cross frame 10 that extends in the vehicle width direction.

[0015] As shown in Fig. 1, pivot frames 12, which constitute part of the body frame FR, are connected to the rear end of the main frame 1. The pivot frames 12 are made of plate material extending in the vertical direction, and a pair of left and right pivot frames 12 are provided. The upper ends of the left and right pivot frames 12 are connected to the first cross frame 6, and the lower ends are connected to a third cross frame 14 extending in the vehicle width direction.

[0016] A front fork 16 is supported on the head pipe 4. A front wheel 18 is supported on the lower end of the front fork 16, and a handlebar 20 is attached to the upper end of the front fork 16. A swing arm 24 is supported on the pivot frame 12 so as to be able to swing up and down. A rear wheel 26 is attached to the rear end of the swing arm 24.

[0017] An engine E is disposed below the main frame 1 between the front wheel 18 and the rear wheel 26. Power from the engine E is transmitted to the rear wheel 26 via a power transmission member 28 shown in FIG. 2 to drive the rear wheel 26. The power transmission member 28 is, for example, a drive chain. However, the power transmission member 28 is not limited to a drive chain.

[0018] As shown in Fig. 1, the engine E has a crankshaft 30 extending in the vehicle width direction, a crankcase 32 that supports the crankshaft 30, a cylinder 34 that protrudes upward from the crankcase 32, and a cylinder head 36 that is connected to the top of the cylinder 34. A combustion chamber is formed inside the cylinder 34 and the cylinder head 36. In this embodiment, the axis AX1 of the cylinder 34 and the cylinder head 36 is inclined upward and forward. In this embodiment, the shape of the engine E, including the crankcase 32, the cylinder 34, and the cylinder head 36, is formed into a substantially L-shape in a side view.

[0019] A cylinder head cover 37 is attached to the upper surface of the cylinder head 36. A spark plug SP is attached to the top wall of the cylinder head 36. Most of the spark plug SP is housed inside the cylinder head cover 37.

[0020] The engine is supported by the body frame FR described above. More specifically, the front portion of the cylinder head 36 is supported by the engine mount 8, and the rear portion of the cylinder head 36 is supported by the first frame piece 1a of the main frame 1. Furthermore, the rear end portion of the crankcase 32 is supported by the pivot frame 12 at two locations, one above and one below. However, the support structure for the engine E is not limited to this.

[0021] An intake port 36a (Figure 2) is formed on the rear surface of the cylinder head 36, and an exhaust port 36b is formed on the front surface of the cylinder head 36. An intake system IS is connected to the intake port 36a. The intake system IS supplies outside air as intake air to the intake port 36a, and includes an air cleaner, a throttle body, etc.

[0022] An exhaust pipe 38 is connected to the exhaust port 36b. The exhaust pipe 38 extends rearward below the engine E and is connected to an exhaust muffler 40 on the right side of the rear wheel 26. The exhaust muffler 40 silences the exhaust from the exhaust pipe 38 and discharges it to the outside.

[0023] Intake air from the intake system IS is introduced into the combustion chamber together with fuel via intake port 36a. The intake air / fuel introduced into the combustion chamber is ignited by a spark plug SP and burns. Exhaust gas after combustion passes through exhaust port 36b, exhaust pipe 38, and is discharged from exhaust muffler 40.

[0024] The motorcycle further includes a seat 42 on which a rider sits, and a fuel tank 44 that stores fuel for the engine E. The fuel tank 44 is disposed behind the engine E and below the seat 42. In detail, the fuel tank 44 is disposed between the left and right rear frames 2, 2 in the plan view of FIG. 3. As shown in FIG. 1, the seat 42 is disposed above the intake system IS and the fuel tank 44.

[0025] A radiator 46 is disposed in front of the engine E. The radiator 46 dissipates heat from the coolant of the engine E by utilizing the wind generated when the vehicle is running. The coolant is, for example, cooling water. In this embodiment, the radiator 46 is disposed substantially parallel to the axis AX1 of the cylinder 23 in a side view. The radiator 46 is supported by the main frame 1 via a bracket 48. The support structure of the radiator 46 will be described later.

[0026] The motorcycle of this embodiment is provided with a resin cowling 50, indicated by a two-dot chain line, that covers the body from the outside.

[0027] As shown in Fig. 2, a generator 55 is provided on one side, which is one axial end of the crankshaft 30, on the left side in this embodiment. The generator 55 in this embodiment is an integrated starter generator (ISG). The generator 55 generates electricity using the power of the engine E, i.e., the rotation of the crankshaft 30.

[0028] 1, a clutch 56 is provided on the other axial end, or on the right side in this embodiment, of the crankshaft 30. The clutch 56 switches between transmitting and blocking the rotation of the crankshaft 30.

[0029] A transmission 58 is housed in a region behind the crankshaft 30 inside the crankcase 32. In other words, the rear portion of the crankcase 32 forms a transmission case that houses the transmission 58. The crankshaft 30 is connected to an input shaft of the transmission 58 via a clutch 56, and the power transmission member 28 is connected to an output shaft of the transmission 58. In other words, the rotation of the crankshaft 30 is changed in speed by the transmission 58 and then transmitted to the rear wheel 26.

[0030] The electric motor M is disposed above the crankcase 32 and behind the cylinder 34. Specifically, the electric motor M is disposed above the crankcase 32, forward of the rear end of the crankcase 32 and behind the cylinder 34. The output shaft of the electric motor M is connected to the input shaft of the transmission 58. That is, the rotation of the output shaft of the electric motor M is changed in speed by the transmission 58 and then transmitted to the rear wheel 26.

[0031] The output shaft of the electric motor M is transmitted to the input shaft of the transmission 58 downstream of the clutch 56, and the power of the electric motor M is transmitted as driving force for traveling. When the clutch 56 is disengaged, the vehicle can travel using only the electric motor. When the clutch 56 is engaged, the vehicle can travel using both the electric motor M and the engine E. When the clutch 56 is engaged and the electric motor M is stopped, the vehicle can travel using only the engine.

[0032] 2, the motorcycle of this embodiment includes a drive battery 60 that drives an electric motor M, and an inverter 62 that supplies the output of a generator 55 to the drive battery 60. The drive battery 60 of this embodiment is a 48V lithium-ion battery. However, the drive battery 60 is not limited to this.

[0033] The inverter 62 of this embodiment is an integrated DC / DC converter inverter. That is, the inverter 62 of this embodiment supplies the output of the generator 55 to the 48V drive battery 60, and also supplies the output to a control power supply battery having a lower voltage than the drive battery 60. The control power supply battery is, for example, a 12V lead storage battery.

[0034] In this embodiment, the inverter 62 is disposed above the engine E and alongside the electric motor M in the vehicle width direction. The inverter 62 is also disposed on the opposite side of the exhaust muffler 40 in the vehicle width direction across the central axis C1 extending in the front-to-rear direction of the vehicle body. In other words, the inverter 62 is disposed on the left side of the vehicle body, and the exhaust muffler 40 is disposed on the right side of the vehicle body. In this embodiment, the engine E is disposed offset to the right side of the vehicle body with respect to the central axis C1 of the vehicle body, and the inverter 62 is disposed in the empty space on the left side.

[0035] The output of the generator 55 is supplied to the drive battery 60 via the inverter 62, charging the drive battery 60. More specifically, the generator 55 is an AC generator, and its output is converted to DC power by the inverter 62 and supplied to the drive battery 60. The power charged in the drive battery 60 is supplied to the electric motor M, which drives the electric motor M.

[0036] In the electric and hybrid driving modes, the driving force of the electric motor M is transmitted to the rear wheels 26 via the power transmission member 28. When the engine is started, power is supplied from the drive battery 60 to the generator 55, which functions as a starter.

[0037] 4, the driving battery 60 of this embodiment has multiple cells housed inside a box-shaped housing 60a. The housing 60a is made of metal, for example, an aluminum alloy. However, the material of the housing 60a is not limited to this.

[0038] Cooling fins 60b are formed on the outer surface of the housing 60a. The cooling fins 60b are protrusions provided to increase the surface area and improve heat exchange efficiency. In this embodiment, the cooling fins 60b are formed on both side surfaces, the front surface, and the rear surface of the housing 60. The cooling fins 60b on both sides extend in the front-to-rear direction. The cooling fins 60b on the front and rear surfaces extend in the vehicle width direction (left-to-right direction).

[0039] The driving battery 60 is disposed in front of the engine E. The driving battery 60 is disposed between the left and right second frame pieces 1b, 1b in the plan view shown in Fig. 3. Furthermore, a portion of the driving battery 60 overlaps with the frame piece 1b in the side view shown in Fig. 4.

[0040] The driving battery 60 is positioned so as not to overlap the cylinder 34 and cylinder head 36 when viewed from the direction of the cylinder axis AX1 of the engine E. In this embodiment, the upper end 60u of the driving battery 60 is positioned higher than the upper end 37u of the cylinder head cover 37 of the engine E. The lower end 60d of the driving battery 60 is positioned higher than the exhaust port 36b. Furthermore, the lower end 60d of the driving battery 60 is positioned higher than the center axis 18a of the front wheel 18.

[0041] In this embodiment, the front surface of the driving battery 60 is tilted downward and rearward. Specifically, the front surface of the driving battery 60 is arranged parallel to the front surface of the radiator 46. In this embodiment, the driving battery 60 is arranged above the radiator 46. Furthermore, the upper end 46u of the radiator 46 is arranged forward of the lower end 60d of the driving battery 60.

[0042] In this embodiment, the driving battery 60 is supported on the body frame FR via a battery stay (not shown). More specifically, the driving battery 60 is attached to the battery stay, which is fixed to the second frame piece 1b of the body frame FR. In other words, the driving battery 60 is fixed to the second frame piece 1b. The driving battery 60 is supported from below by, for example, a plate-shaped battery stay bolted to the second frame piece 1b.

[0043] The bracket 48 has a pair of left and right first bracket pieces 66, 66 extending in the vertical direction, and a second bracket piece 68 connecting the left and right first bracket pieces 66, 66. The second bracket piece 68 extends in the vehicle width direction.

[0044] The left and right first bracket pieces 66 shown in Figure 4 have their upper ends 66u connected to the left and right engine mounts 8, respectively, and their lower ends 66d connected to the second bracket piece 68. The second bracket piece 68 extends in the vehicle width direction, in front of the engine E, and rearward and below the radiator 46. The lower ends 66d of the left and right first bracket pieces 66 are connected to both ends of the second bracket piece 68 in the vehicle width direction, respectively.

[0045] The bracket 48 further has a fourth bracket piece 70 extending in the vertical direction from the second bracket piece 68. A pair of fourth bracket pieces 70 are provided on the left and right, and the lower end portions 70d of each fourth bracket piece 70 are connected to both ends of the second bracket piece 68 in the vehicle width direction.

[0046] Each fourth bracket piece 70 extends upward from the second bracket piece 68. Specifically, each fourth bracket piece 70 extends upward and forward from the second bracket piece 68 at an angle. More specifically, each fourth bracket piece 70 extends parallel to the traction battery 60 and the radiator 46.

[0047] The radiator 46 is supported at the vertical middle portions of the left and right fourth bracket pieces 70. The radiator 46 is fixed to the fourth bracket pieces 70 using fastening members such as bolts.

[0048] The support structure for the drive battery 60 is not limited to this embodiment. For example, the drive battery 60 may be supported on the body frame FR via a bracket 48 that supports the radiator 46.

[0049] With the above configuration, the driving battery 60 is located between the left and right second frame pieces 1b, 1b in the plan view of Fig. 3, and a portion of it overlaps with the second frame piece 1b in the side view of Fig. 4. Therefore, the second frame piece 1b protects the driving battery 60 from external forces from the side of the vehicle body. Furthermore, because the driving battery 60 is located in front of the engine E, the driving battery 60 can be effectively cooled by the wind generated when the vehicle is running.

[0050] In this embodiment, the drive battery 60 is a lithium-ion battery that drives the electric motor M, which is the drive source. Lithium-ion batteries generate heat when they are discharged. When the cell temperature reaches an upper limit temperature, discharging is stopped to protect the battery. In this embodiment, the drive battery 60 can be efficiently cooled by the wind while traveling, which prevents the temperature of the drive battery 60 from rising. This prevents the upper limit temperature from being reached and extends the discharge period.

[0051] Furthermore, in a hybrid vehicle such as this embodiment, heat is generated when switching between running on engine E and running on motor M, particularly while running when the discharge current is high. Therefore, it is during running that there is a high demand for cooling the drive battery 60. Therefore, in this embodiment, the drive battery 60 is cooled using the running wind A, thereby achieving effective cooling of the drive battery 60 with a simple structure.

[0052] 1, the fuel tank 44 is located behind the engine E and below the seat 42. With this configuration, by locating the fuel tank 44 behind the engine E, space for the large drive battery 60 can be secured while the large drive battery 60 can be effectively cooled by the wind generated while the vehicle is running.

[0053] In this embodiment, the driving battery 60 is disposed in a position that does not overlap with the cylinder 34 and the cylinder head 36 when viewed from the direction of the cylinder axis AX1 of the engine E. With this configuration, even if the driving battery 60 is disposed in front of the engine E, maintenance of the spark plugs SP is not impaired.

[0054] In this embodiment, the radiator 46 is disposed in front of the engine E and below the drive battery 60. This configuration prevents interference between the radiator 46 and the drive battery 60, allowing for compact arrangement of equipment in front of the engine.

[0055] 4, in this embodiment, the upper end 46u of the radiator 46 is located forward of the lower end 60d of the driving battery 60. This configuration protects the driving battery 60 from pebbles and the like that may be kicked up by the front wheels 18 while driving.

[0056] In this embodiment, the radiator 46 and the drive battery 60 may be supported on the body frame FR via a common bracket 48. This configuration eliminates the need to provide a dedicated bracket for the battery, and prevents an increase in the number of parts.

[0057] In this embodiment, the upper end 60u of the driving battery 60 is located higher than the upper end 37u of the cylinder head cover 37 of the engine E. With this configuration, the area located higher than the second frame piece 1b increases in side view, so the second frame piece 1b can effectively protect the driving battery 60 from external forces from the side of the vehicle body.

[0058] In this embodiment, the bottom end 60d of the driving battery 60 is located above the exhaust port 36b. This configuration protects the driving battery 60 from the heat of the exhaust gases discharged from the exhaust port 36b.

[0059] In this embodiment, the front surface of the driving battery 60 is inclined downward and rearward. This configuration prevents the driving battery 60 from interfering with the front wheel 18 and front forks 16.

[0060] In this embodiment, the lower end 60d of the driving battery 60 is located above the center axis 18a of the front wheel 18. This configuration prevents the driving battery 60 from interfering with the front wheel 18 even if the front wheel 18 moves relative to the vehicle body while driving.

[0061] In the above embodiment, the drive battery 60 that drives the electric motor M, which is the drive source of the vehicle, is disposed in front of the engine E, between the left and right frame pieces 1b, 1b in a plan view, and a portion of the drive battery 60 overlaps with the frame piece 1b in a side view. However, the motorcycle of the present disclosure is not limited to this, and the control power supply battery may be disposed in front of the engine E, between the left and right frame pieces 1b, 1b in a plan view, and a portion of the control power supply battery may overlap with the frame piece 1b in a side view. In this case, the motorcycle does not need to be equipped with the electric motor M. In other words, the motorcycle may not be a hybrid, but may have only the engine E as a drive source.

[0062] Fig. 5 is a side view showing a motorcycle according to a modified example of this embodiment. As indicated by the two-dot chain line in Fig. 5, the motorcycle of the present disclosure may be provided with footsteps 54 on which the rider places their feet. The footsteps 54 may be formed integrally with the cowling 50.

[0063] The footsteps 54 are provided in pairs on the left and right sides and are flat plates extending in the front-to-rear direction. The footsteps 54 are supported on the body frame FR via brackets 48. In this embodiment, the footsteps 54 are supported on the body frame FR via the same bracket 48 as the radiator 46.

[0064] 5 has a pair of left and right third bracket pieces 69, 69 indicated by two-dot chain lines. The third bracket piece 69 extends rearward from the second bracket piece 68, and its rear end is connected to the lower end of the pivot frame 12. The left and right third bracket pieces 69 support left and right footsteps 54, respectively. The footsteps 54 are fixed to the third bracket pieces 69 using fastening members such as bolts, for example.

[0065] In the modified example shown in Figure 5, the radiator 46, footsteps 54, and drive battery 60 are supported on the body frame FR via a common bracket 48. This configuration eliminates the need for a dedicated bracket for the battery, and prevents an increase in the number of parts.

[0066] The motorcycle of the present disclosure includes the following aspects 1 to 12. [Aspect 1] An engine as a driving source; a vehicle body frame that supports the engine; a battery disposed in front of the engine and charged by power from the engine; The vehicle body frame has a pair of left and right frame pieces, The battery is disposed between the left and right frame pieces in a plan view, and a portion of the battery overlaps with the frame pieces in a side view. [Aspect 2] The motorcycle according to aspect 1 further includes an electric motor in addition to the engine as a drive source. The battery is a drive battery that drives the electric motor. [Aspect 3] The motorcycle according to aspect 1 or 2 further includes a seat for a rider, and a fuel tank disposed behind the engine and below the seat. [Aspect 4] In the motorcycle according to any one of claims 1 to 3, the engine has a crankcase that supports a crankshaft, a cylinder that protrudes upward from the crankcase, and a cylinder head that is connected to an upper portion of the cylinder, The motorcycle has a structure in which the battery is disposed at a position that does not overlap with the cylinder and the cylinder head when viewed from the direction of the cylinder axis of the engine. [Aspect 5] The motorcycle according to any one of claims 1 to 4, further comprising a radiator that dissipates heat from cooling water of the engine, The motorcycle, wherein the radiator is disposed in front of the engine and below the battery. [Aspect 6] Aspect 5 is a motorcycle according to aspect 5, wherein an upper end of the radiator is disposed forward of a lower end of the battery. [Aspect 7] In the motorcycle according to aspect 5 or 6, the radiator and the battery are supported on the body frame via a common bracket. [Aspect 8] 8. The motorcycle according to claim 1, wherein an upper end of the battery is located higher than an upper end of a cylinder head cover of the engine. [Aspect 9] In the motorcycle according to any one of claims 1 to 8, an exhaust port is formed in a front surface of the engine, A motorcycle in which a lower end of the battery is located above the exhaust port. [Aspect 10] 10. The motorcycle according to claim 1, wherein a front surface of the battery is inclined downward and rearward. [Aspect 11] 11. The motorcycle according to claim 1, wherein a lower end of the battery is located above a center axis of a front wheel. [Aspect 12] The motorcycle according to any one of claims 1 to 11, further comprising footsteps on which a rider places his or her feet, The footstep and the battery are supported on the body frame via a common bracket.

[0067] The present disclosure is not limited to the above embodiments, and various additions, modifications, and deletions are possible without departing from the spirit of the present disclosure. Therefore, such additions, modifications, and deletions are also included in the scope of the present disclosure. [Explanation of symbols]

[0068] 1b Second frame piece (frame piece) 18 front wheels 30 crankshaft 32 Crankcase 34 cylinders 36 Cylinder head 36b Exhaust port 37 Cylinder head cover 42 seats 44 Fuel Tank 46 Radiator 48 Bracket 54 Footsteps 60 Battery (driving battery) E-Engine FR body frame M Electric motor

Claims

1. An engine as a driving source; a vehicle body frame that supports the engine; a battery disposed in front of the engine and charged by power from the engine; The vehicle body frame has a pair of left and right frame pieces, The battery is disposed between the left and right frame pieces in a plan view, and a portion of the battery overlaps with the frame pieces in a side view.

2. The motorcycle according to claim 1, further comprising an electric motor in addition to the engine as a drive source, The battery is a drive battery that drives the electric motor.

3. 3. The motorcycle according to claim 1, further comprising: a seat for a rider; and a fuel tank disposed behind the engine and below the seat.

4. 3. The motorcycle according to claim 1, wherein the engine has a crankcase that supports a crankshaft, a cylinder that protrudes upward from the crankcase, and a cylinder head that is connected to an upper portion of the cylinder, The motorcycle has a structure in which the battery is disposed at a position that does not overlap with the cylinder and the cylinder head when viewed from the direction of the cylinder axis of the engine.

5. The motorcycle according to claim 1 or 2, further comprising a radiator that dissipates heat from the engine cooling water, The motorcycle, wherein the radiator is disposed in front of the engine and below the battery.

6. 6. The motorcycle according to claim 5, wherein an upper end of the radiator is disposed forward of a lower end of the battery.

7. 6. The motorcycle according to claim 5, wherein the radiator and the battery are supported on the body frame via a common bracket.

8. 3. The motorcycle according to claim 1, wherein an upper end of the battery is located higher than an upper end of a cylinder head cover of the engine.

9. 3. The motorcycle according to claim 1, wherein an exhaust port is formed in a front surface of the engine, A motorcycle in which a lower end of the battery is located above the exhaust port.

10. 3. The motorcycle according to claim 1, wherein a front surface of the battery is inclined downward and rearward.

11. 3. The motorcycle according to claim 1, wherein a lower end of the battery is located above a center axis of a front wheel.

12. The motorcycle according to claim 1 or 2, further comprising footsteps on which a rider places his or her feet, The footstep and the battery are supported on the body frame via a common bracket.

Images