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WO2021149544A1 - Saddle-type vehicle - Google Patents

Saddle-type vehicle Download PDF

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Publication number
WO2021149544A1
WO2021149544A1 PCT/JP2021/000770 JP2021000770W WO2021149544A1 WO 2021149544 A1 WO2021149544 A1 WO 2021149544A1 JP 2021000770 W JP2021000770 W JP 2021000770W WO 2021149544 A1 WO2021149544 A1 WO 2021149544A1
Authority
WO
WIPO (PCT)
Prior art keywords
width direction
vehicle
vehicle width
saddle
undercover
Prior art date
Application number
PCT/JP2021/000770
Other languages
French (fr)
Japanese (ja)
Inventor
石川　明子
龍一 中西
由 宮島
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to JP2021573080A priority Critical patent/JP7303909B2/en
Priority to BR112022013001A priority patent/BR112022013001A2/en
Priority to CN202190000238.8U priority patent/CN217778846U/en
Publication of WO2021149544A1 publication Critical patent/WO2021149544A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H1/00—Supports or stands forming part of or attached to cycles
    • B62H1/02—Articulated stands, e.g. in the shape of hinged arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J23/00—Other protectors specially adapted for cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J41/00—Arrangements of radiators, coolant hoses or pipes on cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J50/00—Arrangements specially adapted for use on cycles not provided for in main groups B62J1/00 - B62J45/00
    • B62J50/30—Means for ventilation within devices provided on the cycle, e.g. ventilation means in a battery container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K25/00—Axle suspensions
    • B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
    • B62K25/12—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg
    • B62K25/14—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg
    • B62K25/20—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg for rear wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M7/00—Motorcycles characterised by position of motor or engine
    • B62M7/02—Motorcycles characterised by position of motor or engine with engine between front and rear wheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Definitions

  • the present invention relates to a saddle-riding vehicle.
  • the present application claims priority based on Japanese Patent Application No. 2020-09383 filed in Japan on January 23, 2020, the contents of which are incorporated herein by reference.
  • Patent Document 1 discloses a saddle-riding vehicle provided with an undercover that covers the lower surface of the vehicle body.
  • a radiator is located above the front of the undercover.
  • a wind guide portion that guides the exhaust air from the radiator is recessed upward.
  • the wind guide extends from the front to the rear end of the undercover.
  • the wind guide portion has a bottom surface displaced upward with respect to the lower surface of the cover.
  • a central protrusion (18 g of hanging portion) is formed so as to project downward from the bottom surface of the wind guide. Due to this central protrusion, rainwater or the like that has entered the wind guide portion is likely to drip or scatter at the rear end portion of the undercover, and the drainage property of the undercover is improved.
  • vehicle parts related to the prime mover for example, muffler, air cleaner, etc.
  • the water that has spilled to the outside of the central protrusion in the vehicle width direction is likely to be applied to the vehicle parts only by providing the central protrusion on the inside of the rear end of the undercover in the vehicle width direction.
  • the present invention has been made to solve the above problems.
  • the present invention provides a saddle-riding vehicle capable of ensuring drainage at the rear end of an undercover covering the lower surface of the vehicle body and suppressing water splashing on vehicle parts arranged on the outside in the vehicle width direction. The purpose.
  • the first range (H1) inside the undercover (40) in the vehicle width direction is set.
  • a central projecting portion (53) projecting downward is provided, and a second range (H2) outside the vehicle width direction from the first range (H1) is a projecting portion projecting downward, and the central projecting portion.
  • (53) is provided with an outer extending portion (54,55) that is continuous with the outer side in the vehicle width direction and extends outward in the vehicle width direction, and the outer portion of the outer extending portion (54,55) is the central protruding portion (53). ) Is provided by changing the position in the front-rear direction of the vehicle.
  • the central protrusion defines the draining position inside in the vehicle width direction.
  • the outer extending portion sets a position where water is dropped or scattered independently of the position in the front-rear direction of the central protruding portion. Therefore, it is possible to secure the drainage property at the rear end portion of the undercover and suppress the water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
  • the outer extending portions (54, 55) are provided on both sides in the vehicle width direction with respect to the central protruding portion (53). According to this configuration, the following effects are obtained by providing the outer extending portions on both sides (left and right sides) in the vehicle width direction. That is, it is possible to drip or scatter water at suitable positions for different vehicle parts arranged outside in the vehicle width direction. Therefore, it is possible to further suppress water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
  • At least one of the outer portions of the outer extending portions (54, 55) on both sides in the vehicle width direction is rearward of the central protruding portion (53). Is displaced to. According to this configuration, the water that wraps around the central protrusion toward the outside in the vehicle width direction while the vehicle is running flows behind the central protrusion, but this water is easily received by the outer extension. Therefore, it is possible to further suppress water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
  • a fourth aspect of the present invention is a radiator having a fan (44) above the first range (H1) of the undercover (40) in any one of the first to third aspects. 41), the undercover (40) guided the exhaust air from the radiator (41) below the undercover (40) from the front to the rear of the first range (H1).
  • a wind guide portion (56) for flowing rearward is provided, and the central projecting portion (53) is provided wider in the vehicle width direction than the outer diameter of the fan (44) of the radiator (41).
  • the exhaust air from the radiator flows backward by the wind guide provided in the first range.
  • the width of the exhaust air from the radiator largely depends on the outer diameter of the fan.
  • the wind guide portion (56) extends in the front-rear direction of the vehicle and the rear end is connected to the central protrusion (53). ) Is provided.
  • the protruding portion extending in the front-rear direction of the vehicle rectifies the exhaust air from the radiator up to the central protrusion, so that the following effects are obtained. That is, since the exhaust air from the radiator is smoothly flowed to the central protrusion, the flow of water accompanying the exhaust air from the radiator can be easily received by the central protrusion. Therefore, it is possible to ensure good drainage in the first range of the undercover.
  • the outer extending portion (54,55) is outside the outer diameter of the fan (44) of the radiator (41) in the vehicle width direction. Is located in. According to this configuration, the area around the outer extension portion is less susceptible to the influence of the exhaust air from the radiator. Therefore, it becomes easy to control the dropping or scattering of water by the outer extending portion, and it is possible to further suppress the splashing of water on the vehicle parts arranged on the outer side in the vehicle width direction.
  • the exhaust pipe (37) of the power unit (20) is provided on one side in the vehicle width direction, and the exhaust pipe (37) of the power unit (20) is provided on one side in the vehicle width direction.
  • the outer extending portion (54) is located in front of the exhaust pipe (37). According to this configuration, since the outer extension portion also arranged on one side in the vehicle width direction is located in front of the exhaust pipe arranged on one side in the vehicle width direction, water splashing on the exhaust pipe is satisfactorily suppressed. be able to.
  • the front end side is swingably supported by the vehicle body frame (11) via the pivot shaft (29), and the rear wheel (4) is supported by the rear end side.
  • the pivot shaft (29) is located behind the central protrusion (53), and the outer extension portion (54) on one side in the vehicle width direction is the pivot. It is located behind the axis (29).
  • the outer extension portion arranged on one side in the vehicle width direction is located further behind the pivot axis located behind the central protrusion.
  • a ninth aspect of the present invention is the seventh or eighth aspect, wherein the intake ports (27, 28) of the power unit (20) are provided on the other side in the vehicle width direction with respect to one side in the vehicle width direction.
  • the outer extension portion (55) on the other side of the direction is located in front of the intake port (27, 28). According to this configuration, since the outer extension portion also arranged on the other side in the vehicle width direction is located in front of the intake port arranged on the other side in the vehicle width direction, water splashing on the intake port is satisfactorily suppressed. be able to.
  • a tenth aspect of the present invention comprises, in the ninth aspect, a side stand (36) that supports the vehicle body in an inclined posture in front of the intake ports (27, 28) on the other side in the vehicle width direction.
  • the outer extending portion (55) on the other side in the vehicle width direction is formed in a convex V shape on one side in the vehicle front-rear direction. According to this configuration, the outer extending portion also arranged on the other side in the vehicle width direction bends in a V shape with respect to the side stand arranged on the other side in the vehicle width direction, so that the following effects are obtained. That is, by bending the outer extending portion so as to avoid the movable range of the side stand, the clearance between the side stand and the outer extending portion can be secured.
  • a saddle-riding type vehicle capable of ensuring drainage at the rear end of an undercover covering the lower surface of the vehicle body and suppressing water splashing on vehicle parts arranged outside in the vehicle width direction. be able to.
  • the motorcycle (saddle-riding vehicle) 1 of the present embodiment has a step floor 9 between the seat 5 and the steering wheel 2.
  • the motorcycle 1 is a low-floor scooter-type vehicle in which a straddling space K1 is formed between the seat 5 and the handle 2.
  • the motorcycle 1 includes a front wheel 3 which is a steering wheel and a rear wheel 4 which is a driving wheel.
  • the front wheels 3 are supported by the lower parts of the pair of left and right front forks 6.
  • the front wheel 3 can be steered by the bar type handle 2.
  • the steering system parts including the front wheels 3 and the left and right front forks 6 are steerably supported by the head pipe 12 at the front end of the vehicle body frame 11.
  • the rear wheel 4 is supported by the rear portion of the swing unit (swing type power unit) 20.
  • the motorcycle 1 is a unit-sinning type vehicle, and the rear wheels 4 and the prime mover (for example, engine E) swing integrally.
  • the motorcycle 1 includes a pair of left and right step floors 9 on which the driver seated on the seat 5 rests his / her feet, and a center tunnel CT extending in the front-rear direction of the vehicle between the left and right step floors 9.
  • the center tunnel CT is formed in front of the seat 5 at a position lower than the seat 5.
  • a straddling space K1 is formed when the driver straddles the vehicle body.
  • the body frame 11 of the motorcycle 1 is a head pipe 12 located at the front end portion, a down frame 13 extending downward and rearward from the head pipe 12, and after extending rearward so as to branch left and right from the lower end portion of the down frame 13.
  • a pair of left and right lower frames 14 that are curved so as to rise upward, a pair of left and right subframes 14b that extend between the down frame 13 and the left and right lower frames 14, and a front end connected to the left and right subframes 14b to rise backward.
  • It includes a pair of left and right rear frames 15 that extend and have front and rear intermediate portions supported by the upper ends of the left and right lower frames 14.
  • the term "intermediate" means not only the center of the target site but also the range near the center.
  • the lower rear end of the left and right lower frames 14 is provided with a pivot portion 14c that supports the swing unit 20 (see FIG. 2).
  • the circumference of the vehicle body frame 11 is covered with the vehicle body cover 18.
  • the vehicle body cover 18 includes a pair of left and right step floors 9 on which the driver seated on the seat 5 rests, a center tunnel CT arranged between the left and right step floors 9 and extending in the front-rear direction, and the left and right step floors 9 and the center tunnel.
  • the swing unit 20 includes an engine (internal combustion engine) E arranged at the front portion, a transmission (for example, a V-belt type continuously variable transmission) M arranged at the rear left side, and the same. Is provided in one piece.
  • the front end side of the swing unit 20 is supported by the pivot portion 14c of the vehicle body frame 11.
  • the front end side of the swing unit 20 is supported by the pivot portion 14c so as to be vertically swingable via the suspension link 33 and the pivot shaft 29 along the vehicle width direction (left-right direction).
  • the lower end of the rear cushion 7, which is a shock absorber, is connected to the rear end of the swing unit 20.
  • the upper end of the rear cushion 7 is connected to the rear portion of the vehicle body frame 11 (rear frame 15).
  • a side stand 36 that supports the vehicle body in an inclined posture to the left is attached to the left lower frame 14.
  • Engine E has the rotation center axis of the crankshaft (not shown) along the left-right direction (vehicle width direction).
  • the engine E projects the cylinder portion 24 from the front end portion of the crankcase 23 toward the front substantially horizontally (specifically, tilted slightly forward).
  • a transmission case 21 as a rear arm that projects to the left and then extends rearward is integrally provided.
  • the throttle body 26 is connected to the upper part of the cylinder portion 24 of the engine E, and the exhaust pipe 37 is connected to the lower part of the cylinder portion 24.
  • An air cleaner 22 is connected to the upstream side of the throttle body 26.
  • the air cleaner 22 is arranged above the transmission case 21.
  • the exhaust pipe 37 is appropriately curved below the cylinder portion 24 and extends rearward.
  • the exhaust pipe 37 is connected to a muffler (silencer) 38 arranged on the right side of the rear wheel 4.
  • An intake duct 21a is provided at the front end of the transmission case 21.
  • the intake duct 21a includes, for example, an intake port 27 that opens toward the front of the vehicle.
  • the intake duct 21a allows outside air to be introduced into the transmission case 21. The outside air makes it possible to cool the transmission M in the transmission case 21.
  • the front end of the air cleaner 22 is provided with, for example, an intake port 28 that opens toward the front of the vehicle.
  • the intake port 28 is arranged above the intake duct 21a and opens toward the front of the vehicle, for example.
  • a radiator 41 for cooling the engine E is arranged on the upper side of the undercover 40.
  • the radiator 41 is a heat radiating unit of the cooling device of the engine E.
  • the radiator 41 has a rectangular plate shape in a plan view.
  • the radiator 41 is arranged in a posture in which the thickness direction is inclined forward.
  • the radiator 41 is provided with, for example, a fan 44 on the rear surface side.
  • the fan 44 is, for example, an electric axial fan, and the rotation of the fan 44 causes outside air to flow from the front to the rear of the core. As a result, the cooling water flowing through the radiator 41 is cooled and used for cooling the engine E.
  • the undercover 40 covers the range extending over the left and right lower frames 14 in the vehicle width direction from below.
  • the undercover 40 has a substantially horizontal plate shape except for the duct portion 52 and the left and right side portions 57b and 57c, which will be described later.
  • the portion of the undercover 40 excluding the duct portion 52 and the left and right side portions 57b and 57c constitutes a cover lower surface portion 57 that faces the road surface and is substantially horizontal to the road surface.
  • the undercover 40 is arranged below the left and right lower frames 14, and covers the left and right lower frames 14 and the like from below.
  • the undercover 40 has a substantially rectangular shape in a plan view, except for the left and right extension portions 58 and 59, which will be described later.
  • the specified range inside the undercover 40 in the vehicle width direction (hereinafter referred to as the first range H1) is the air guide portion 56 that guides the exhaust air from the radiator 41.
  • the radiator 41 is arranged in an upright posture above the front portion (upper surface side) of the undercover 40.
  • a duct portion 52 that projects upward along the outer periphery of the rear surface of the radiator 41 is formed in the front portion of the first range H1 of the undercover 40.
  • the duct portion 52 forms a rectangular opening 61 facing the rear surface of the radiator 41.
  • the opening 61 is formed along the rear surface of the radiator 41.
  • the duct portion 52 is open toward the lower side of the vehicle.
  • the duct portion 52 forms a wind guide path having a rectangular cross section behind the rear surface of the radiator 41.
  • the bottom surface portion of the duct portion 52 that is displaced upward with respect to the cover lower surface portion 57 is an inclined portion 64 that extends backward and downwardly from the upper edge portion of the opening 61.
  • An upper curved portion 64a that curves toward the rear surface of the radiator 41 is formed on the upper portion of the inclined portion 64.
  • a lower curved portion 64b that curves rearward is formed in the lower portion of the inclined portion 64.
  • the lower end portion of the inclined portion 64 is flush with, for example, the lower surface portion 57 of the cover. In other words, the lower end of the inclined portion 64 is terminated at the front-rear intermediate portion of the undercover 40.
  • Reference numeral 65 in the figure indicates the left and right side surface portions of the duct portion 52 having a triangular shape in a side view.
  • the lower end of the duct portion 52 opens downward on the lower surface portion 57 of the cover.
  • the front edge portion 62a of the opening 62 at the lower end of the duct portion 52 coincides with the lower edge portion of the opening 61 at the front end of the duct portion 52.
  • the trailing edge portion 62b of the opening 62 at the lower end of the duct portion 52 coincides with the end portion of the lower curved portion 64b of the inclined portion 64.
  • Reference numeral 62c in the figure indicates the left and right side edges of the opening 62 at the lower end of the duct portion 52.
  • a ridge (protruding shape portion) 84 along the vehicle front-rear direction projecting from the lower surface portion 57 of the cover.
  • the ridge 84 has, for example, a U-shaped cross-sectional shape that opens upward and extends in the front-rear direction of the vehicle.
  • a plurality of ridges 84 are provided at intervals in the vehicle width direction. The space between the adjacent ridges 84 may be regarded as a groove portion along the front-rear direction of the vehicle.
  • a fan 44 is arranged in the opening 61 at the front end of the duct portion 52 on the rear surface side of the radiator 41.
  • the fan 44 has a rotation center axis along the normal direction of the rear surface of the radiator 41.
  • the first range H1 and the air guide portion 56 are provided wider in the vehicle width direction than the outer diameter D1 of the fan 44 of the radiator 41. This makes it easier for the air guide portion 56 to guide the exhaust air from the fan 44.
  • the fan 44 may be arranged on the front side of the radiator 41.
  • the wind guide portion 56 is formed from the front portion to the rear end portion of the undercover 40.
  • the undercover 40 may form a wind guide portion 56 recessed upward with respect to the cover lower surface portion 57 at the rear portion of the first range H1.
  • the undercover 40 includes a central protrusion 53 that protrudes downward at the rear end of the first range H1.
  • the central protrusion 53 acts to drip or scatter water flowing on the lower surface side (air guide portion 56) of the first range H1 at the rear end portion of the cover.
  • the central projecting portion 53 has a front inclined portion 53a that inclines forward and a rear inclined portion 53b that inclines backward.
  • the central protrusion 53 has a V-shaped cross-sectional shape and extends in the vehicle width direction.
  • Reference numeral 72 in the figure indicates a protruding ridgeline portion of the central protruding portion 53 (the ridgeline portion between the front-rear inclined portions 53a and 53b, the edge portion facing the front of the vehicle).
  • the water flowing on the lower surface side of the first range H1 reaches the protruding ridge line portion 72 of the central protruding portion 53, and drops or scatters from the protruding ridge line portion 72 backward and downward.
  • the central protrusion 53 is provided wider in the vehicle width direction than the outer diameter D1 of the fan 44 of the radiator 41. As a result, the central protrusion 53 can easily receive the flow of water accompanying the exhaust air from the fan 44.
  • the rear ends of the plurality of ridges 84 are abutted and connected to the central protrusion. As a result, the flow of wind up to the central protrusion 53 is rectified to enhance the action of the central protrusion 53.
  • the left and right lateral extensions extending outward in the vehicle width direction connected to the outside in the vehicle width direction of the central protrusion 53, respectively. It has protrusions 54 and 55.
  • the outer extending portions 54 and 55 are rib-shaped protruding portions that project downward from the lower surface portion 57 of the cover, respectively, and act to drip or scatter the water that has spilled to the outside of the central protruding portion 53 in the vehicle width direction.
  • the outer extending portions 54 and 55 are located outside the outer diameter D1 of the fan 44 of the radiator 41 in the vehicle width direction. As a result, the area around the outer extending portions 54 and 55 is less likely to be affected by the exhaust air from the fan 44, and it becomes easier to control the dropping or scattering of water.
  • the undercover 40 includes left and right extension portions 58 and 59 extending rearward from the rear end portion of the first range H1.
  • the left and right side portions 57b and 57c on the outer side of the undercover 40 in the vehicle width direction with respect to the cover lower surface portion 57 stand up so as to be located on the upper left and right sides, respectively.
  • the left and right portions 57b and 57c are provided in a range extending over the front and rear ends of the cover including the left and right extension portions 58 and 59, respectively.
  • the left extension portion 54 includes a first left extension portion 75, a second left extension portion 76, and a third left extension portion 77.
  • the first left extending portion 75 extends in the vehicle width direction between the central protruding portion 53 and the left extending portion 58 on the left side of the rear end portion of the central protruding portion 53.
  • the second left extending portion 76 extends so as to be positioned forward from the left end portion of the first left extending portion 75 toward the outside in the vehicle width direction in a bottom view.
  • the second left extending portion 76 extends from the lower surface portion 57 of the cover to the left side portion 57b of the cover.
  • the third left extension portion 77 extends so as to be located rearward from the left end portion of the second left extension portion 76 toward the outside in the vehicle width direction in a downward view.
  • the second left extending portion 76 and the third left extending portion 77 project to the outside of the cover at the left side portion 57b of the cover.
  • the second left extending portion 76 and the third left extending portion 77 are bent in a convex V shape in front of the vehicle in a bottom view and are connected to each other.
  • the outer portion of the left extending portion 54 in the vehicle width direction (third left extending portion 77) is provided at a position offset rearward (a position different in the vehicle front-rear direction) with respect to the protruding ridge line portion 72 of the central protruding portion 53.
  • the third left extending portion 77 is provided in a shape (inclined shape) different from that of the protruding ridge line portion 72 in the bottom view.
  • the second left extending portion 76 is provided so as to be offset rearward with respect to the protruding ridge line portion 72 of the central protruding portion 53 and to have a different shape (inclined shape) when viewed from the bottom.
  • the first left extending portion 75 is provided so as to be offset rearward with respect to the protruding ridge line portion 72 of the central protruding portion 53.
  • the left extension portion 54 is located in front of the intake ports 27 and 28 of the transmission case 21 and the air cleaner 22 provided on the left side of the vehicle body.
  • the intake ports 27 and 28 can be respectively set. It becomes easier to suppress water splashing.
  • a side stand 36 is arranged on the left side of the vehicle body, and water splashing on the base end portion (movable portion) of the side stand 36 is also suppressed by the left extending portion 54 located in front of the side stand 36.
  • the left extending portion 54 has a V-shaped bent shape in a bottom view so as to avoid the base end portion of the side stand 36.
  • the right extension portion 55 includes a first right extension portion 81, a second right extension portion 82, and a third right extension portion 83.
  • the first right extending portion 81 extends in the vehicle width direction between the central protruding portion 53 and the right extending portion 59 on the right side of the rear end portion of the central protruding portion 53.
  • the second right extension portion 82 extends rearward from the right end portion of the first right extension portion 81 along the inner inner edge of the right extension portion 59 in the vehicle width direction.
  • the third right extending portion 83 extends outward in the vehicle width direction from the rear end portion of the second right extending portion 82.
  • the third right extending portion 83 extends from the lower surface portion 57 of the cover to the right side portion 57c of the cover.
  • the third right extending portion 83 projects to the outside of the cover at the right side portion 57c of the cover.
  • the right extension portion 55 has a mode in which the first right extension portion 81, the second right extension portion 82, and the third right extension portion 83 are bent in a crank shape on the lower surface and are connected to each other.
  • the outer portion of the right extending portion 55 in the vehicle width direction (third right extending portion 83) is provided at a position offset rearward (a position different in the vehicle front-rear direction) with respect to the protruding ridge line portion 72 of the central protruding portion 53.
  • the first right extending portion 81 is also provided so as to be offset rearward with respect to the protruding ridge line portion 72 of the central protruding portion 53.
  • the second right extending portion 82 is located behind the protruding ridge line portion 72 of the central protruding portion 53, and is provided in a linear shape orthogonal to the protruding ridge line portion 72 of the central protruding portion 53.
  • the right extension portion 55 is located in front of the exhaust pipe 37 provided on the right side of the vehicle body (see FIG. 2).
  • the right extending portion 55 extends further rearward than the pivot shaft 29 located behind the central protruding portion 53.
  • the third right extension portion 83 is located behind the pivot shaft 29. As a result, the third right extending portion 83 approaches the exhaust pipe 37 as much as possible, and it becomes easy to control the water splashing on the exhaust pipe 37.
  • the saddle-riding vehicle is a motorcycle 1 provided with an undercover 40 that covers the lower surface of the vehicle body.
  • a central protrusion 53 that protrudes downward is provided.
  • the second range H2 which is outside the first range H1 in the vehicle width direction, is a protruding portion that protrudes downward, and is connected to the outside of the central protruding portion 53 in the vehicle width direction and extends outward in the vehicle width direction. It is provided with extension portions 54 and 55.
  • the outer portions (third left extension portion 77, third right extension portion 83) of the outer extension portions 54 and 55 change their positions in the vehicle front-rear direction with respect to the protruding ridge line portion 72 of the central protrusion 53. It is provided.
  • the outer extending portions 54 and 55 set a position for dropping or scattering water independently of the position in the front-rear direction of the central protruding portion 53. Therefore, it is possible to secure the drainage property at the rear end portion of the undercover 40 and suppress the water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
  • the outer extending portions 54 and 55 are provided on both sides in the vehicle width direction with respect to the central protruding portion 53. According to this configuration, the following effects are obtained by providing the outer extending portions 54 and 55 on both sides (left and right sides) in the vehicle width direction. That is, it is possible to drip or scatter water at suitable positions for different vehicle parts arranged outside in the vehicle width direction. Therefore, it is possible to further suppress water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
  • both the outer portions (third left extension portion 77, third right extension portion 83) of the left and right outer extension portions 54 and 55 are displaced rearward from the central protrusion 53, but one of them. It may be configured in which only the rear displacement.
  • a radiator 41 having a fan 44 is provided above the front portion of the first range H1 of the undercover 40.
  • the undercover 40 includes a wind guide portion 56 that guides the exhaust air from the radiator 41 below the undercover 40 and then flows it rearward from the front portion to the rear portion of the first range H1.
  • the central protrusion 53 is provided wider in the vehicle width direction than the outer diameter D1 of the fan 44 of the radiator 41. According to this configuration, the exhaust air from the radiator 41 flows backward by the air guide portion 56 provided in the first range H1.
  • the width of the exhaust air from the radiator 41 largely depends on the outer diameter D1 of the fan.
  • the central protrusion 53 By providing the central protrusion 53 so as to be wider than the outer diameter D1 of the fan, the central protrusion 53 can easily catch the flow of water accompanying the exhaust air from the radiator 41. Therefore, it is possible to ensure good drainage in the first range H1 of the undercover 40.
  • the wind guide portion 56 includes a ridge 84 extending in the front-rear direction of the vehicle and having a rear end connected to the central protrusion 53.
  • the ridge 84 extending in the front-rear direction of the vehicle rectifies the exhaust air from the radiator 41 up to the central protrusion 53, so that the following effects are obtained. That is, since the exhaust air from the radiator 41 is smoothly flowed to the central protrusion 53, the flow of water accompanying the exhaust air from the radiator 41 can be easily received by the central protrusion 53. Therefore, it is possible to ensure good drainage in the first range H1 of the undercover 40.
  • the outer extending portions 54 and 55 are located outside the outer diameter D1 of the fan 44 of the radiator 41 in the vehicle width direction. According to this configuration, the area around the outer extension portions 54 and 55 is less susceptible to the influence of the exhaust air from the radiator 41. Therefore, it becomes easy to control the dropping or scattering of water by the outer extending portions 54 and 55, and it is possible to further suppress the water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
  • the exhaust pipe 37 of the power unit 20 is provided on one side (left side) in the vehicle width direction.
  • the left outer extending portion 54 on one side in the vehicle width direction is located in front of the exhaust pipe 37.
  • the outer extension portion 54 which is also arranged on the one side in the vehicle width direction, is located in front of the exhaust pipe 37 arranged on the one side in the vehicle width direction. It can be suppressed well.
  • the front end side is swingably supported by the vehicle body frame 11 via the pivot shaft 29, and the rear end side is provided with a swing arm (transmission case 21) that supports the rear wheels 4.
  • the pivot shaft 29 is located behind the central protrusion 53, and the left outer extension portion 54 on one side in the vehicle width direction is located behind the pivot shaft 29.
  • the outer extending portion 54 arranged on one side in the vehicle width direction is located further behind the pivot shaft 29 located behind the central protruding portion 53. In this way, since the outer extending portion 54 is largely displaced to the rear of the central protruding portion 53 and approaches the exhaust pipe 37, it is possible to satisfactorily suppress water splashing on the exhaust pipe 37.
  • the intake ports 27 and 28 of the power unit 20 are provided on the other side (right side) in the vehicle width direction with respect to one side in the vehicle width direction.
  • the right outer extension portion 55 on the other side in the vehicle width direction is located in front of the intake ports 27 and 28.
  • the outer extension portion 55 also arranged on the other side in the vehicle width direction is located in front of the intake ports 27 and 28 arranged on the other side in the vehicle width direction. Therefore, it is possible to satisfactorily suppress water splashing on the intake ports 27 and 28.
  • the saddle-riding vehicle includes a side stand 36 that supports the vehicle body in an inclined posture in front of the intake ports 27 and 28 on the other side in the vehicle width direction.
  • the outer extending portion 55 on the other side in the vehicle width direction is formed in a convex V shape on one side in the vehicle front-rear direction.
  • the outer extending portion 55 also arranged on the other side in the vehicle width direction bends in a V shape with respect to the side stand 36 arranged on the other side in the vehicle width direction, so that the following effects are obtained. That is, by bending the outer extending portion 55 so as to avoid the movable range of the side stand 36, the clearance between the side stand 36 and the outer extending portion 55 can be secured.
  • the undercover 40 of the embodiment is integrally formed of a synthetic resin or the like, but the present invention is not limited to this, and the undercover 40 may be composed of a plurality of parts or may be a split type.
  • Vehicles to which the present invention is applied include not only motorcycles (including motorized bicycles and scooter type vehicles) but also three wheels (including front two-wheel and rear one-wheel vehicles in addition to front one-wheel and rear two-wheel) or four-wheel Vehicles are also included.
  • the configuration in the above embodiment is an example of the present invention, and various modifications can be made without departing from the gist of the present invention, such as replacing the constituent elements of the embodiment with well-known constituent elements.

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  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
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  • Transportation (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
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Abstract

In this saddle-type vehicle (motorcycle 1), a rearwardly-projecting central projection part 53 is provided to the rear part of a first range H1 that is inward, in the vehicle width direction, of an under cover 40 covering the bottom surface of the vehicle body. Left and right outside extension parts 54, 55, which are downwardly-projecting projection parts and which extend outward in the vehicle width direction as continuations from the outside of the central projection part 53 in the vehicle width direction, are provided in second ranges H2 outward of the first range H1 in the vehicle width direction. Outside parts (third left projection part 77, third right projection part 83) of the outside projection parts 54, 55 are provided such that the positions thereof in the vehicle front-rear direction are varied relative to a projection ridgeline part 72 of the central projection part 53.

Description

鞍乗り型車両Saddle-riding vehicle
　本発明は、鞍乗り型車両に関する。
　本願は、２０２０年１月２３日に、日本に出願された特願２０２０－００９３８３号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a saddle-riding vehicle.
The present application claims priority based on Japanese Patent Application No. 2020-09383 filed in Japan on January 23, 2020, the contents of which are incorporated herein by reference.
　例えば特許文献１には、車体下面を覆うアンダーカバーを備えた鞍乗り型車両が開示されている。アンダーカバーの前部の上方には、ラジエータが配置されている。アンダーカバーの車幅方向内側には、ラジエータからの排風を案内する導風部が上方に向けて凹設されている。導風部は、アンダーカバーの前部から後端部に渡って延びている。導風部は、カバー下面に対して上方に変位した底面を有している。アンダーカバーの後端部には、導風部の底面よりも下方に突出する中央突出部（垂下部１８ｇ）が形成されている。この中央突出部により、導風部内に浸入した雨水等がアンダーカバーの後端部で滴下または飛散しやすく、アンダーカバーの水切り性が向上する。 For example, Patent Document 1 discloses a saddle-riding vehicle provided with an undercover that covers the lower surface of the vehicle body. A radiator is located above the front of the undercover. Inside the undercover in the vehicle width direction, a wind guide portion that guides the exhaust air from the radiator is recessed upward. The wind guide extends from the front to the rear end of the undercover. The wind guide portion has a bottom surface displaced upward with respect to the lower surface of the cover. At the rear end of the undercover, a central protrusion (18 g of hanging portion) is formed so as to project downward from the bottom surface of the wind guide. Due to this central protrusion, rainwater or the like that has entered the wind guide portion is likely to drip or scatter at the rear end portion of the undercover, and the drainage property of the undercover is improved.
特許第５１４２８８５号公報Japanese Patent No. 5142885
　ところで、鞍乗り型車両において、特にスクータ型車両の場合、車体後部の車幅方向外側に、原動機に係る車両部品（例えばマフラーやエアクリーナ等）が配置されることがある。この場合、アンダーカバーの後端部の車幅方向内側に中央突出部を設けるのみでは、中央突出部の車幅方向外側に回り込んだ水が前記車両部品に掛かりやすくなるという課題がある。 By the way, in saddle-riding type vehicles, especially in the case of scooter type vehicles, vehicle parts related to the prime mover (for example, muffler, air cleaner, etc.) may be arranged outside the rear part of the vehicle body in the vehicle width direction. In this case, there is a problem that the water that has spilled to the outside of the central protrusion in the vehicle width direction is likely to be applied to the vehicle parts only by providing the central protrusion on the inside of the rear end of the undercover in the vehicle width direction.
　本発明は上記課題を解決するためになされたものである。本発明は、車体下面を覆うアンダーカバーの後端部における水切り性を確保するとともに、車幅方向外側に配置された車両部品への水掛かりを抑えることができる鞍乗り型車両を提供することを目的とする。 The present invention has been made to solve the above problems. The present invention provides a saddle-riding vehicle capable of ensuring drainage at the rear end of an undercover covering the lower surface of the vehicle body and suppressing water splashing on vehicle parts arranged on the outside in the vehicle width direction. The purpose.
　本発明の第一の態様は、車体下面を覆うアンダーカバー（４０）を備えた鞍乗り型車両（１）において、前記アンダーカバー（４０）の車幅方向内側の第一範囲（Ｈ１）には、下方に突出する中央突出部（５３）を備え、前記第一範囲（Ｈ１）よりも車幅方向外側の第二範囲（Ｈ２）には、下方に突出する突出部であり、前記中央突出部（５３）の車幅方向外側に連なって車幅方向外側に延びる外側延出部（５４，５５）を備え、前記外側延出部（５４，５５）の外側部は、前記中央突出部（５３）に対して車両前後方向の位置を変化させて設けられる。 According to the first aspect of the present invention, in a saddle-riding vehicle (1) provided with an undercover (40) covering the lower surface of the vehicle body, the first range (H1) inside the undercover (40) in the vehicle width direction is set. A central projecting portion (53) projecting downward is provided, and a second range (H2) outside the vehicle width direction from the first range (H1) is a projecting portion projecting downward, and the central projecting portion. (53) is provided with an outer extending portion (54,55) that is continuous with the outer side in the vehicle width direction and extends outward in the vehicle width direction, and the outer portion of the outer extending portion (54,55) is the central protruding portion (53). ) Is provided by changing the position in the front-rear direction of the vehicle.
　この構成によれば、アンダーカバーの車幅方向内側の第一範囲では、アンダーカバーの下面を流れる水をカバー後部の中央突出部によって滴下または飛散させる。中央突出部の車幅方向外側に回り込んだ水は、中央突出部の車幅方向外側に連なる外側延出部によって滴下または飛散させる。外側延出部は、中央突出部に対して車両前後方向の位置を変化させる外側部を有するので、以下の効果を奏する。すなわち、中央突出部は、車幅方向内側の水切り位置を規定する。外側延出部は、中央突出部の前後方向位置とは独立して、水を滴下または飛散させる位置を設定する。このため、アンダーカバーの後端部における水切り性を確保するとともに、車幅方向外側に配置された車両部品への水掛かりを抑えることができる。 According to this configuration, in the first range inside the undercover in the vehicle width direction, water flowing on the lower surface of the undercover is dropped or scattered by the central protrusion at the rear of the cover. The water that wraps around the central protrusion on the outside in the vehicle width direction is dropped or scattered by the outer extension portion that is continuous on the outside in the vehicle width direction of the central protrusion. Since the outer extending portion has an outer portion that changes the position of the vehicle in the front-rear direction with respect to the central protruding portion, the following effects are obtained. That is, the central protrusion defines the draining position inside in the vehicle width direction. The outer extending portion sets a position where water is dropped or scattered independently of the position in the front-rear direction of the central protruding portion. Therefore, it is possible to secure the drainage property at the rear end portion of the undercover and suppress the water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
　本発明の第二の態様は、上記第一の態様において、前記外側延出部（５４，５５）は、前記中央突出部（５３）に対して車幅方向両側に設けられている。
　この構成によれば、外側延出部を車幅方向両側（左右両側）に設けることにより、以下の効果を奏する。すなわち、車幅方向外側に配置された互いに異なる車両部品に対して、それぞれ適した位置で水を滴下または飛散させることが可能となる。このため、車幅方向外側に配置された車両部品への水掛かりをより一層抑えることができる。 In the second aspect of the present invention, in the first aspect, the outer extending portions (54, 55) are provided on both sides in the vehicle width direction with respect to the central protruding portion (53).
According to this configuration, the following effects are obtained by providing the outer extending portions on both sides (left and right sides) in the vehicle width direction. That is, it is possible to drip or scatter water at suitable positions for different vehicle parts arranged outside in the vehicle width direction. Therefore, it is possible to further suppress water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
　本発明の第三の態様は、上記第二の態様において、前記車幅方向両側の前記外側延出部（５４，５５）の外側部の少なくとも一方は、前記中央突出部（５３）よりも後方に変位している。
　この構成によれば、車両走行中に中央突出部の車幅方向外側に回り込んだ水は、中央突出部の後方に流れるが、この水を外側延出部によって受け止めやすくなる。このため、車幅方向外側に配置された車両部品への水掛かりをより一層抑えることができる。 In the third aspect of the present invention, in the second aspect, at least one of the outer portions of the outer extending portions (54, 55) on both sides in the vehicle width direction is rearward of the central protruding portion (53). Is displaced to.
According to this configuration, the water that wraps around the central protrusion toward the outside in the vehicle width direction while the vehicle is running flows behind the central protrusion, but this water is easily received by the outer extension. Therefore, it is possible to further suppress water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
　本発明の第四の態様は、上記第一から第三の態様の何れか一つにおいて、前記アンダーカバー（４０）の前記第一範囲（Ｈ１）の上方に、ファン（４４）を有するラジエータ（４１）を備え、前記アンダーカバー（４０）は、前記第一範囲（Ｈ１）の前部から後部に渡って、前記ラジエータ（４１）からの排風を前記アンダーカバー（４０）の下方に導いた後に後方に流す導風部（５６）を備え、前記中央突出部（５３）は、前記ラジエータ（４１）のファン（４４）の外径よりも車幅方向で幅広に設けられている。
　この構成によれば、ラジエータからの排風は、第一範囲に備える導風部によって後方に流れる。ラジエータからの排風の幅は、概ねファンの外径に依存する。このファンの外径よりも幅広となるよう中央突出部を設けることで、ラジエータからの排風に伴う水の流れを中央突出部で受け止めやすくなる。このため、アンダーカバーの第一範囲における水切り性を良好に確保することができる。 A fourth aspect of the present invention is a radiator having a fan (44) above the first range (H1) of the undercover (40) in any one of the first to third aspects. 41), the undercover (40) guided the exhaust air from the radiator (41) below the undercover (40) from the front to the rear of the first range (H1). A wind guide portion (56) for flowing rearward is provided, and the central projecting portion (53) is provided wider in the vehicle width direction than the outer diameter of the fan (44) of the radiator (41).
According to this configuration, the exhaust air from the radiator flows backward by the wind guide provided in the first range. The width of the exhaust air from the radiator largely depends on the outer diameter of the fan. By providing the central protrusion so as to be wider than the outer diameter of this fan, it becomes easier for the central protrusion to catch the flow of water accompanying the exhaust air from the radiator. Therefore, it is possible to ensure good drainage in the first range of the undercover.
　本発明の第五の態様は、上記第四の態様において、前記導風部（５６）は、車両前後方向に延びて後端が前記中央突出部（５３）に接続される突形状部（８４）を備えている。
　この構成によれば、車両前後方向に延びる突形状部により、ラジエータからの排風を中央突出部に至るまで整流するので、以下の効果を奏する。すなわち、ラジエータからの排風を中央突出部まで円滑に流すので、ラジエータからの排風に伴う水の流れを中央突出部で受け止めやすくなる。このため、アンダーカバーの第一範囲における水切り性を良好に確保することができる。 In a fifth aspect of the present invention, in the fourth aspect, the wind guide portion (56) extends in the front-rear direction of the vehicle and the rear end is connected to the central protrusion (53). ) Is provided.
According to this configuration, the protruding portion extending in the front-rear direction of the vehicle rectifies the exhaust air from the radiator up to the central protrusion, so that the following effects are obtained. That is, since the exhaust air from the radiator is smoothly flowed to the central protrusion, the flow of water accompanying the exhaust air from the radiator can be easily received by the central protrusion. Therefore, it is possible to ensure good drainage in the first range of the undercover.
　本発明の第六の態様は、上記第四又は第五の態様において、前記外側延出部（５４，５５）は、前記ラジエータ（４１）のファン（４４）の外径よりも車幅方向外側に位置している。
　この構成によれば、外側延出部の周辺では、ラジエータからの排風の影響を受け難くなる。このため、外側延出部による水の滴下または飛散をコントロールしやすくなり、車幅方向外側に配置された車両部品への水掛かりをより一層抑えることができる。 In the sixth aspect of the present invention, in the fourth or fifth aspect, the outer extending portion (54,55) is outside the outer diameter of the fan (44) of the radiator (41) in the vehicle width direction. Is located in.
According to this configuration, the area around the outer extension portion is less susceptible to the influence of the exhaust air from the radiator. Therefore, it becomes easy to control the dropping or scattering of water by the outer extending portion, and it is possible to further suppress the splashing of water on the vehicle parts arranged on the outer side in the vehicle width direction.
　本発明の第七の態様は、上記第一から第六の態様の何れか一つにおいて、車幅方向一側にパワーユニット（２０）の排気管（３７）を備え、前記車幅方向一側の前記外側延出部（５４）は、前記排気管（３７）の前方に位置している。
　この構成によれば、車幅方向一側に配置された排気管の前方に、同じく車幅方向一側に配置された外側延出部が位置するので、排気管への水掛かりを良好に抑えることができる。 In the seventh aspect of the present invention, in any one of the first to sixth aspects, the exhaust pipe (37) of the power unit (20) is provided on one side in the vehicle width direction, and the exhaust pipe (37) of the power unit (20) is provided on one side in the vehicle width direction. The outer extending portion (54) is located in front of the exhaust pipe (37).
According to this configuration, since the outer extension portion also arranged on one side in the vehicle width direction is located in front of the exhaust pipe arranged on one side in the vehicle width direction, water splashing on the exhaust pipe is satisfactorily suppressed. be able to.
　本発明の第八の態様は、上記第七の態様において、前端側が車体フレーム（１１）にピボット軸（２９）を介して揺動可能に支持され、後端側に後輪（４）を支持するスイングアーム（２１）を備え、前記ピボット軸（２９）は、前記中央突出部（５３）よりも後方に位置し、前記車幅方向一側の前記外側延出部（５４）は、前記ピボット軸（２９）よりも後方に位置している。
　この構成によれば、車幅方向一側に配置された外側延出部が、中央突出部よりも後方に位置するピボット軸よりもさらに後方に位置する。このように、外側延出部が中央突出部の後方に大きく変位して排気管に近付くので、排気管への水掛かりを良好に抑えることができる。 In the eighth aspect of the present invention, in the seventh aspect, the front end side is swingably supported by the vehicle body frame (11) via the pivot shaft (29), and the rear wheel (4) is supported by the rear end side. The pivot shaft (29) is located behind the central protrusion (53), and the outer extension portion (54) on one side in the vehicle width direction is the pivot. It is located behind the axis (29).
According to this configuration, the outer extension portion arranged on one side in the vehicle width direction is located further behind the pivot axis located behind the central protrusion. In this way, since the outer extending portion is largely displaced to the rear of the central protruding portion and approaches the exhaust pipe, it is possible to satisfactorily suppress water splashing on the exhaust pipe.
　本発明の第九の態様は、上記第七又は第八の態様において、前記車幅方向一側に対する車幅方向他側にパワーユニット（２０）の吸気口（２７，２８）を備え、前記車幅方向他側の前記外側延出部（５５）は、前記吸気口（２７，２８）よりも前方に位置している。
　この構成によれば、車幅方向他側に配置された吸気口の前方に、同じく車幅方向他側に配置された外側延出部が位置するので、吸気口への水掛かりを良好に抑えることができる。 A ninth aspect of the present invention is the seventh or eighth aspect, wherein the intake ports (27, 28) of the power unit (20) are provided on the other side in the vehicle width direction with respect to one side in the vehicle width direction. The outer extension portion (55) on the other side of the direction is located in front of the intake port (27, 28).
According to this configuration, since the outer extension portion also arranged on the other side in the vehicle width direction is located in front of the intake port arranged on the other side in the vehicle width direction, water splashing on the intake port is satisfactorily suppressed. be able to.
　本発明の第十の態様は、上記第九の態様において、前記車幅方向他側で前記吸気口（２７，２８）よりも前方に、車体を傾斜姿勢で支持するサイドスタンド（３６）を備え、前記車幅方向他側の前記外側延出部（５５）は、車両前後方向一側に凸のＶ字状に形成されている。
　この構成によれば、車幅方向他側に配置されたサイドスタンドに対し、同じく車幅方向他側に配置された外側延出部がＶ字状に屈曲するので、以下の効果を奏する。すなわち、サイドスタンドの可動範囲を避けるように外側延出部を屈曲させることで、サイドスタンドと外側延出部とのクリアランスを確保することができる。 A tenth aspect of the present invention comprises, in the ninth aspect, a side stand (36) that supports the vehicle body in an inclined posture in front of the intake ports (27, 28) on the other side in the vehicle width direction. The outer extending portion (55) on the other side in the vehicle width direction is formed in a convex V shape on one side in the vehicle front-rear direction.
According to this configuration, the outer extending portion also arranged on the other side in the vehicle width direction bends in a V shape with respect to the side stand arranged on the other side in the vehicle width direction, so that the following effects are obtained. That is, by bending the outer extending portion so as to avoid the movable range of the side stand, the clearance between the side stand and the outer extending portion can be secured.
　本発明によれば、車体下面を覆うアンダーカバーの後端部における水切り性を確保するとともに、車幅方向外側に配置された車両部品への水掛かりを抑えることができる鞍乗り型車両を提供することができる。 According to the present invention, there is provided a saddle-riding type vehicle capable of ensuring drainage at the rear end of an undercover covering the lower surface of the vehicle body and suppressing water splashing on vehicle parts arranged outside in the vehicle width direction. be able to.
本発明の実施形態における自動二輪車の左側面図である。It is a left side view of the motorcycle in embodiment of this invention. 上記自動二輪車のアンダーカバー周辺の一部断面を含む左側面図である。It is a left side view including a partial cross section around the undercover of the motorcycle. 上記アンダーカバー周辺の下面図である。It is a bottom view around the undercover. 上記アンダーカバーの左側面図である。It is a left side view of the undercover. 上記アンダーカバーの右側面図である。It is a right side view of the undercover.
　以下、本発明の実施形態について図面を参照して説明する。なお、以下の説明における前後左右等の向きは、特に記載が無ければ以下に説明する車両における向きと同一とする。また以下の説明に用いる図中適所には、車両前方を示す矢印ＦＲ、車両左方を示す矢印ＬＨ、車両上方を示す矢印ＵＰ、車体左右中心を示す線ＣＬが示されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Unless otherwise specified, the directions such as front, rear, left, and right in the following description are the same as the directions in the vehicle described below. Further, at appropriate positions in the figure used in the following description, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left side of the vehicle, an arrow UP indicating the upper part of the vehicle, and a line CL indicating the center of the left and right sides of the vehicle body are shown.
＜車両全体＞
　図１に示すように、本実施形態の自動二輪車（鞍乗り型車両）１は、シート５とハンドル２との間にステップフロア９を有している。自動二輪車１は、シート５とハンドル２との間に跨ぎ空間Ｋ１を形成した低床式のスクータ型車両である。自動二輪車１は、操向輪である前輪３と、駆動輪である後輪４と、を備えている。前輪３は、左右一対のフロントフォーク６の下部に支持されている。 <Whole vehicle>
As shown in FIG. 1, the motorcycle (saddle-riding vehicle) 1 of the present embodiment has a step floor 9 between the seat 5 and the steering wheel 2. The motorcycle 1 is a low-floor scooter-type vehicle in which a straddling space K1 is formed between the seat 5 and the handle 2. The motorcycle 1 includes a front wheel 3 which is a steering wheel and a rear wheel 4 which is a driving wheel. The front wheels 3 are supported by the lower parts of the pair of left and right front forks 6.
　前輪３は、バータイプのハンドル２によって操向可能である。前輪３および左右フロントフォーク６を含む操舵系部品は、車体フレーム１１の前端部のヘッドパイプ１２に操向可能に支持されている。
　後輪４は、スイングユニット（スイング式動力ユニット）２０の後部に支持されている。自動二輪車１は、ユニットスイニング式の車両であり、後輪４と原動機（例えばエンジンＥ）とが一体に揺動する。 The front wheel 3 can be steered by the bar type handle 2. The steering system parts including the front wheels 3 and the left and right front forks 6 are steerably supported by the head pipe 12 at the front end of the vehicle body frame 11.
The rear wheel 4 is supported by the rear portion of the swing unit (swing type power unit) 20. The motorcycle 1 is a unit-sinning type vehicle, and the rear wheels 4 and the prime mover (for example, engine E) swing integrally.
　自動二輪車１は、シート５に着座した運転者が足を載せ置く左右一対のステップフロア９と、左右のステップフロア９の間で車両前後方向に延びるセンタートンネルＣＴと、を備えている。センタートンネルＣＴは、シート５の前方でシート５よりも低位置に形成されている。センタートンネルＣＴの上方には、運転者が車体を跨ぐ際の跨ぎ空間Ｋ１が形成されている。 The motorcycle 1 includes a pair of left and right step floors 9 on which the driver seated on the seat 5 rests his / her feet, and a center tunnel CT extending in the front-rear direction of the vehicle between the left and right step floors 9. The center tunnel CT is formed in front of the seat 5 at a position lower than the seat 5. Above the center tunnel CT, a straddling space K1 is formed when the driver straddles the vehicle body.
　自動二輪車１の車体フレーム１１は、前端部に位置するヘッドパイプ１２と、ヘッドパイプ１２から下後方へ延びるダウンフレーム１３と、ダウンフレーム１３の下端部から左右に分岐するように後方へ延びた後に上方に立ち上がるように湾曲する左右一対のロアフレーム１４と、ダウンフレーム１３と左右ロアフレーム１４との間に渡る左右一対のサブフレーム１４ｂと、左右サブフレーム１４ｂに前端部を接続して後上がりに延び、前後中間部が左右ロアフレーム１４の上端部に支持される左右一対のリヤフレーム１５と、を備えている。本実施形態で「中間」とは、対象部位の中央のみならず中央近傍の範囲を含む意とする。左右ロアフレーム１４の下後端部には、スイングユニット２０を支持するピボット部１４ｃを備えている（図２参照）。 The body frame 11 of the motorcycle 1 is a head pipe 12 located at the front end portion, a down frame 13 extending downward and rearward from the head pipe 12, and after extending rearward so as to branch left and right from the lower end portion of the down frame 13. A pair of left and right lower frames 14 that are curved so as to rise upward, a pair of left and right subframes 14b that extend between the down frame 13 and the left and right lower frames 14, and a front end connected to the left and right subframes 14b to rise backward. It includes a pair of left and right rear frames 15 that extend and have front and rear intermediate portions supported by the upper ends of the left and right lower frames 14. In the present embodiment, the term "intermediate" means not only the center of the target site but also the range near the center. The lower rear end of the left and right lower frames 14 is provided with a pivot portion 14c that supports the swing unit 20 (see FIG. 2).
　車体フレーム１１の周囲は、車体カバー１８で覆われている。車体カバー１８は、シート５に着座した運転者が足を載せる左右一対のステップフロア９と、左右ステップフロア９の間に配置されて前後方向に延びるセンタートンネルＣＴと、左右ステップフロア９およびセンタートンネルＣＴの前方に連なるフロントボディカバー（フロントカウル）１７ａと、左右ステップフロア９およびセンタートンネルＣＴの後方に連なるリヤボディカバー（リヤカウル）１７ｂと、左右ステップフロア９およびセンタートンネルＣＴの下方に配置されて車体下面を覆うアンダーカバー４０と、を備えている。 The circumference of the vehicle body frame 11 is covered with the vehicle body cover 18. The vehicle body cover 18 includes a pair of left and right step floors 9 on which the driver seated on the seat 5 rests, a center tunnel CT arranged between the left and right step floors 9 and extending in the front-rear direction, and the left and right step floors 9 and the center tunnel. The front body cover (front cowl) 17a connected to the front of the CT, the rear body cover (rear cowl) 17b connected to the left and right step floors 9 and the rear of the center tunnel CT, and the lower surface of the vehicle body arranged below the left and right step floors 9 and the center tunnel CT. It is provided with an undercover 40 that covers the tunnel.
＜スイングユニット＞
　図１、図２に示すように、スイングユニット２０は、前部に配置されたエンジン（内燃機関）Ｅと、後部左側に配置された変速機（例えばＶベルト式無段変速機）Ｍと、を一体に備えている。スイングユニット２０の前端側は、車体フレーム１１のピボット部１４ｃに支持されている。スイングユニット２０の前端側は、ピボット部１４ｃに対し、懸架リンク３３および車幅方向（左右方向）に沿うピボット軸２９を介して上下揺動可能に支持されている。スイングユニット２０の後端部には、緩衝装置であるリヤクッション７の下端部が連結されている。リヤクッション７の上端部は、車体フレーム１１（リヤフレーム１５）の後部に連結されている。左ロアフレーム１４には、車体を左側に傾斜した姿勢で支持するサイドスタンド３６が取り付けられている。 <Swing unit>
As shown in FIGS. 1 and 2, the swing unit 20 includes an engine (internal combustion engine) E arranged at the front portion, a transmission (for example, a V-belt type continuously variable transmission) M arranged at the rear left side, and the same. Is provided in one piece. The front end side of the swing unit 20 is supported by the pivot portion 14c of the vehicle body frame 11. The front end side of the swing unit 20 is supported by the pivot portion 14c so as to be vertically swingable via the suspension link 33 and the pivot shaft 29 along the vehicle width direction (left-right direction). The lower end of the rear cushion 7, which is a shock absorber, is connected to the rear end of the swing unit 20. The upper end of the rear cushion 7 is connected to the rear portion of the vehicle body frame 11 (rear frame 15). A side stand 36 that supports the vehicle body in an inclined posture to the left is attached to the left lower frame 14.
　エンジンＥは、不図示のクランクシャフトの回転中心軸線を左右方向（車幅方向）に沿わせている。エンジンＥは、クランクケース２３の前端部からシリンダ部２４を前方に向けて略水平に（詳細にはやや前上がりに傾斜させて）突出させている。クランクケース２３の左側部には、左方に張り出した後に後方に延出するリヤアームとしての変速機ケース２１が一体に設けられている。 Engine E has the rotation center axis of the crankshaft (not shown) along the left-right direction (vehicle width direction). The engine E projects the cylinder portion 24 from the front end portion of the crankcase 23 toward the front substantially horizontally (specifically, tilted slightly forward). On the left side of the crankcase 23, a transmission case 21 as a rear arm that projects to the left and then extends rearward is integrally provided.
　エンジンＥのシリンダ部２４の上部にはスロットルボディ２６が接続され、シリンダ部２４の下部には排気管３７が接続されている。スロットルボディ２６の上流側には、エアクリーナ２２が接続されている。エアクリーナ２２は、変速機ケース２１の上方に配置されている。排気管３７は、シリンダ部２４の下方で適宜湾曲して後方へ延びている。排気管３７は、後輪４の右側に配置されたマフラー（消音器）３８に接続されている。 The throttle body 26 is connected to the upper part of the cylinder portion 24 of the engine E, and the exhaust pipe 37 is connected to the lower part of the cylinder portion 24. An air cleaner 22 is connected to the upstream side of the throttle body 26. The air cleaner 22 is arranged above the transmission case 21. The exhaust pipe 37 is appropriately curved below the cylinder portion 24 and extends rearward. The exhaust pipe 37 is connected to a muffler (silencer) 38 arranged on the right side of the rear wheel 4.
　変速機ケース２１の前端部には、吸気ダクト２１ａを備えている。吸気ダクト２１ａは、例えば車両前方に向けて開口する吸気口２７を備えている。吸気ダクト２１ａは、変速機ケース２１内に外気を導入可能とする。この外気により、変速機ケース２１内の変速機Ｍが冷却可能となる。
　エアクリーナ２２の前端部には、例えば車両前方に向けて開口する吸気口２８を備えている。吸気口２８は、吸気ダクト２１ａの上方に配置され、例えば車両前方に向けて開口している。 An intake duct 21a is provided at the front end of the transmission case 21. The intake duct 21a includes, for example, an intake port 27 that opens toward the front of the vehicle. The intake duct 21a allows outside air to be introduced into the transmission case 21. The outside air makes it possible to cool the transmission M in the transmission case 21.
The front end of the air cleaner 22 is provided with, for example, an intake port 28 that opens toward the front of the vehicle. The intake port 28 is arranged above the intake duct 21a and opens toward the front of the vehicle, for example.
　アンダーカバー４０の上方側には、エンジンＥ冷却用のラジエータ４１が配置されている。ラジエータ４１は、エンジンＥの冷却装置の放熱部である。ラジエータ４１は、平面視矩形状の板状をなしている。ラジエータ４１は、厚さ方向を前上がりに傾斜させた姿勢で配置されている。ラジエータ４１は、例えば後面側にファン４４を備えている。ファン４４は、例えば電動の軸流ファンであり、ファン４４の回転によりコアの前方から後方へ外気が流通する。これにより、ラジエータ４１を流れる冷却水が冷却されてエンジンＥの冷却に供される。 A radiator 41 for cooling the engine E is arranged on the upper side of the undercover 40. The radiator 41 is a heat radiating unit of the cooling device of the engine E. The radiator 41 has a rectangular plate shape in a plan view. The radiator 41 is arranged in a posture in which the thickness direction is inclined forward. The radiator 41 is provided with, for example, a fan 44 on the rear surface side. The fan 44 is, for example, an electric axial fan, and the rotation of the fan 44 causes outside air to flow from the front to the rear of the core. As a result, the cooling water flowing through the radiator 41 is cooled and used for cooling the engine E.
＜アンダーカバー＞
　図２、図３に示すように、アンダーカバー４０は、車幅方向で左右ロアフレーム１４に渡る範囲を下方から覆っている。アンダーカバー４０は、後述するダクト部５２および左右側部５７ｂ，５７ｃを除き、略水平な板状をなしている。アンダーカバー４０におけるダクト部５２および左右側部５７ｂ，５７ｃを除く部位は、路面に対向しかつ路面と略水平なカバー下面部５７を構成している。アンダーカバー４０は、左右ロアフレーム１４の下方に配置され、左右ロアフレーム１４等を下方から覆っている。アンダーカバー４０は、後述する左右延長部５８，５９を除き、平面視で概略矩形状をなしている。 <Undercover>
As shown in FIGS. 2 and 3, the undercover 40 covers the range extending over the left and right lower frames 14 in the vehicle width direction from below. The undercover 40 has a substantially horizontal plate shape except for the duct portion 52 and the left and right side portions 57b and 57c, which will be described later. The portion of the undercover 40 excluding the duct portion 52 and the left and right side portions 57b and 57c constitutes a cover lower surface portion 57 that faces the road surface and is substantially horizontal to the road surface. The undercover 40 is arranged below the left and right lower frames 14, and covers the left and right lower frames 14 and the like from below. The undercover 40 has a substantially rectangular shape in a plan view, except for the left and right extension portions 58 and 59, which will be described later.
　アンダーカバー４０の車幅方向内側の規定範囲（以下、第一範囲Ｈ１という）は、ラジエータ４１からの排風を案内する導風部５６とされる。ラジエータ４１は、アンダーカバー４０の前部の上方（上面側）に起立姿勢で配置されている。アンダーカバー４０の第一範囲Ｈ１の前部には、ラジエータ４１の後面外周に沿うように上方に突出するダクト部５２が形成されている。ダクト部５２は、ラジエータ４１の後面に対向する矩形状の開口６１を形成している。開口６１は、ラジエータ４１の後面に沿うように形成されている。ダクト部５２は、車両下方に向けて開放している。ダクト部５２は、ラジエータ４１の後面の後方に断面矩形状の導風路を形成している。 The specified range inside the undercover 40 in the vehicle width direction (hereinafter referred to as the first range H1) is the air guide portion 56 that guides the exhaust air from the radiator 41. The radiator 41 is arranged in an upright posture above the front portion (upper surface side) of the undercover 40. A duct portion 52 that projects upward along the outer periphery of the rear surface of the radiator 41 is formed in the front portion of the first range H1 of the undercover 40. The duct portion 52 forms a rectangular opening 61 facing the rear surface of the radiator 41. The opening 61 is formed along the rear surface of the radiator 41. The duct portion 52 is open toward the lower side of the vehicle. The duct portion 52 forms a wind guide path having a rectangular cross section behind the rear surface of the radiator 41.
　ダクト部５２におけるカバー下面部５７に対して上方に変位した底面部は、開口６１の上縁部から後方へ後ろ下がりに傾斜して延びる傾斜部６４とされる。傾斜部６４の上部には、ラジエータ４１の後面に向けて湾曲する上湾曲部６４ａが形成されている。傾斜部６４の下部には、後方に向けて湾曲する下湾曲部６４ｂが形成されている。傾斜部６４の下端部は、例えばカバー下面部５７と面一状に連なる。換言すれば、傾斜部６４の下端部は、アンダーカバー４０の前後中間部で終端している。図中符号６５はダクト部５２における側面視三角形状の左右側面部を示す。 The bottom surface portion of the duct portion 52 that is displaced upward with respect to the cover lower surface portion 57 is an inclined portion 64 that extends backward and downwardly from the upper edge portion of the opening 61. An upper curved portion 64a that curves toward the rear surface of the radiator 41 is formed on the upper portion of the inclined portion 64. A lower curved portion 64b that curves rearward is formed in the lower portion of the inclined portion 64. The lower end portion of the inclined portion 64 is flush with, for example, the lower surface portion 57 of the cover. In other words, the lower end of the inclined portion 64 is terminated at the front-rear intermediate portion of the undercover 40. Reference numeral 65 in the figure indicates the left and right side surface portions of the duct portion 52 having a triangular shape in a side view.
　ダクト部５２の下端は、カバー下面部５７上で下方に開口している。ダクト部５２下端の開口６２の前縁部６２ａは、ダクト部５２前端の開口６１の下縁部と一致する。ダクト部５２下端の開口６２の後縁部６２ｂは、傾斜部６４の下湾曲部６４ｂの終端部と一致する。図中符号６２ｃはダクト部５２下端の開口６２の左右側縁部を示す。 The lower end of the duct portion 52 opens downward on the lower surface portion 57 of the cover. The front edge portion 62a of the opening 62 at the lower end of the duct portion 52 coincides with the lower edge portion of the opening 61 at the front end of the duct portion 52. The trailing edge portion 62b of the opening 62 at the lower end of the duct portion 52 coincides with the end portion of the lower curved portion 64b of the inclined portion 64. Reference numeral 62c in the figure indicates the left and right side edges of the opening 62 at the lower end of the duct portion 52.
　傾斜部６４の下端部の後方には、例えばカバー下面部５７に突設された車両前後方向に沿う突条（突形状部）８４によって、第一範囲Ｈ１および導風部５６の後部が画定されている。突条８４は、例えば上方に開放するＵ字状の断面形状を有して車両前後方向に延びている。突条８４は、車幅方向に間隔を空けて複数設けられている。隣接する突条８４の間を、車両前後方向に沿う溝部として捉えてもよい。 Behind the lower end of the inclined portion 64, for example, the rear portion of the first range H1 and the wind guide portion 56 is defined by a ridge (protruding shape portion) 84 along the vehicle front-rear direction projecting from the lower surface portion 57 of the cover. ing. The ridge 84 has, for example, a U-shaped cross-sectional shape that opens upward and extends in the front-rear direction of the vehicle. A plurality of ridges 84 are provided at intervals in the vehicle width direction. The space between the adjacent ridges 84 may be regarded as a groove portion along the front-rear direction of the vehicle.
　例えばラジエータ４１の後面側でダクト部５２前端の開口６１内には、ファン４４が配置されている。ファン４４は、ラジエータ４１の後面の法線方向に沿う回転中心軸線を有している。第一範囲Ｈ１および導風部５６は、ラジエータ４１のファン４４の外径Ｄ１よりも車幅方向で幅広に設けられている。これにより、導風部５６がファン４４からの排風を案内しやすくなる。ファン４４は、ラジエータ４１の前面側に配置されてもよい。導風部５６は、アンダーカバー４０の前部から後端部に渡って形成されている。アンダーカバー４０は、第一範囲Ｈ１の後部において、カバー下面部５７に対して上方に凹んだ導風部５６を形成してもよい。 For example, a fan 44 is arranged in the opening 61 at the front end of the duct portion 52 on the rear surface side of the radiator 41. The fan 44 has a rotation center axis along the normal direction of the rear surface of the radiator 41. The first range H1 and the air guide portion 56 are provided wider in the vehicle width direction than the outer diameter D1 of the fan 44 of the radiator 41. This makes it easier for the air guide portion 56 to guide the exhaust air from the fan 44. The fan 44 may be arranged on the front side of the radiator 41. The wind guide portion 56 is formed from the front portion to the rear end portion of the undercover 40. The undercover 40 may form a wind guide portion 56 recessed upward with respect to the cover lower surface portion 57 at the rear portion of the first range H1.
　アンダーカバー４０は、第一範囲Ｈ１の後端部において、下方に突出する中央突出部５３を備えている。中央突出部５３は、第一範囲Ｈ１の下面側（導風部５６）を流れる水を、カバー後端部において滴下または飛散させるよう作用する。中央突出部５３は、前上がりに傾斜する前傾斜部５３ａと、後上がりに傾斜する後傾斜部５３ｂと、を有している。中央突出部５３は、Ｖ字状の断面形状を有して車幅方向に延びている。図中符号７２は中央突出部５３の突出稜線部（前後傾斜部５３ａ，５３ｂ間の稜線部、車両前方に臨む端縁部）を示す。第一範囲Ｈ１の下面側を流れる水は、中央突出部５３の突出稜線部７２に至り、突出稜線部７２から後下方へ滴下または飛散する。 The undercover 40 includes a central protrusion 53 that protrudes downward at the rear end of the first range H1. The central protrusion 53 acts to drip or scatter water flowing on the lower surface side (air guide portion 56) of the first range H1 at the rear end portion of the cover. The central projecting portion 53 has a front inclined portion 53a that inclines forward and a rear inclined portion 53b that inclines backward. The central protrusion 53 has a V-shaped cross-sectional shape and extends in the vehicle width direction. Reference numeral 72 in the figure indicates a protruding ridgeline portion of the central protruding portion 53 (the ridgeline portion between the front-rear inclined portions 53a and 53b, the edge portion facing the front of the vehicle). The water flowing on the lower surface side of the first range H1 reaches the protruding ridge line portion 72 of the central protruding portion 53, and drops or scatters from the protruding ridge line portion 72 backward and downward.
　中央突出部５３は、ラジエータ４１のファン４４の外径Ｄ１よりも車幅方向で幅広に設けられている。これにより、中央突出部５３がファン４４からの排風に伴う水の流れを受け止めやすくなる。中央突出部には、複数の突条８４の後端が突き当たって接続されている。これにより、中央突出部５３までの風の流れを整流して中央突出部５３の作用を高めている。 The central protrusion 53 is provided wider in the vehicle width direction than the outer diameter D1 of the fan 44 of the radiator 41. As a result, the central protrusion 53 can easily receive the flow of water accompanying the exhaust air from the fan 44. The rear ends of the plurality of ridges 84 are abutted and connected to the central protrusion. As a result, the flow of wind up to the central protrusion 53 is rectified to enhance the action of the central protrusion 53.
　アンダーカバー４０において、第一範囲Ｈ１よりも車幅方向外側（左右両側）の第二範囲Ｈ２には、それぞれ中央突出部５３の車幅方向外側に連なって車幅方向外側に延びる左右の外側延出部５４，５５を備えている。外側延出部５４，５５は、それぞれカバー下面部５７の下方に突出するリブ状の突出部であり、中央突出部５３の車幅方向外側に回り込んだ水を滴下または飛散させるよう作用する。外側延出部５４，５５は、ラジエータ４１のファン４４の外径Ｄ１よりも車幅方向外側に位置している。これにより、外側延出部５４，５５の周辺ではファン４４からの排風の影響を受け難くなり、水の滴下または飛散をコントロールしやすくなる。 In the undercover 40, in the second range H2 outside the vehicle width direction (both left and right sides) with respect to the first range H1, the left and right lateral extensions extending outward in the vehicle width direction connected to the outside in the vehicle width direction of the central protrusion 53, respectively. It has protrusions 54 and 55. The outer extending portions 54 and 55 are rib-shaped protruding portions that project downward from the lower surface portion 57 of the cover, respectively, and act to drip or scatter the water that has spilled to the outside of the central protruding portion 53 in the vehicle width direction. The outer extending portions 54 and 55 are located outside the outer diameter D1 of the fan 44 of the radiator 41 in the vehicle width direction. As a result, the area around the outer extending portions 54 and 55 is less likely to be affected by the exhaust air from the fan 44, and it becomes easier to control the dropping or scattering of water.
　アンダーカバー４０は、第一範囲Ｈ１の後端部よりも後方へ延びる左右延長部５８，５９を備えている。アンダーカバー４０におけるカバー下面部５７よりも車幅方向外側の左右側部５７ｂ，５７ｃは、それぞれ左右外側ほど上側に位置するように傾斜して立ち上がっている。左右側部５７ｂ，５７ｃは、それぞれ左右延長部５８，５９を含むカバー前後端に渡る範囲に設けられている。 The undercover 40 includes left and right extension portions 58 and 59 extending rearward from the rear end portion of the first range H1. The left and right side portions 57b and 57c on the outer side of the undercover 40 in the vehicle width direction with respect to the cover lower surface portion 57 stand up so as to be located on the upper left and right sides, respectively. The left and right portions 57b and 57c are provided in a range extending over the front and rear ends of the cover including the left and right extension portions 58 and 59, respectively.
　図４を併せて参照し、左延出部５４は、第一左延出部７５と、第二左延出部７６と、第三左延出部７７と、を備えている。
　第一左延出部７５は、中央突出部５３の後端部の左側方において、中央突出部５３と左延長部５８との間で車幅方向に延びている。
　第二左延出部７６は、第一左延出部７５の左端部から車幅方向外側ほど前方に位置するように下面視で傾斜して延びている。第二左延出部７６は、カバー下面部５７からカバー左側部５７ｂに回り込むように延びている。 With reference to FIG. 4, the left extension portion 54 includes a first left extension portion 75, a second left extension portion 76, and a third left extension portion 77.
The first left extending portion 75 extends in the vehicle width direction between the central protruding portion 53 and the left extending portion 58 on the left side of the rear end portion of the central protruding portion 53.
The second left extending portion 76 extends so as to be positioned forward from the left end portion of the first left extending portion 75 toward the outside in the vehicle width direction in a bottom view. The second left extending portion 76 extends from the lower surface portion 57 of the cover to the left side portion 57b of the cover.
　第三左延出部７７は、第二左延出部７６の左端部から車幅方向外側ほど後方に位置するように下面視で傾斜して延びている。第二左延出部７６および第三左延出部７７は、カバー左側部５７ｂにおいてカバー外側に突出している。
　第二左延出部７６および第三左延出部７７は、下面視で車両前方に凸のＶ字状に折れ曲がって連なった態様をなしている。 The third left extension portion 77 extends so as to be located rearward from the left end portion of the second left extension portion 76 toward the outside in the vehicle width direction in a downward view. The second left extending portion 76 and the third left extending portion 77 project to the outside of the cover at the left side portion 57b of the cover.
The second left extending portion 76 and the third left extending portion 77 are bent in a convex V shape in front of the vehicle in a bottom view and are connected to each other.
　左延出部５４の車幅方向外側部（第三左延出部７７）は、中央突出部５３の突出稜線部７２に対して、後方にオフセットした位置（車両前後方向で異なる位置）に設けられている。第三左延出部７７は、突出稜線部７２に対して、下面視で異なる形状（傾斜形状）に設けられている。第二左延出部７６も同様に、中央突出部５３の突出稜線部７２に対して、後方にオフセットし、かつ下面視で異なる形状（傾斜形状）に設けられている。第一左延出部７５は、中央突出部５３の突出稜線部７２に対して、後方にオフセットして設けられている。 The outer portion of the left extending portion 54 in the vehicle width direction (third left extending portion 77) is provided at a position offset rearward (a position different in the vehicle front-rear direction) with respect to the protruding ridge line portion 72 of the central protruding portion 53. Has been done. The third left extending portion 77 is provided in a shape (inclined shape) different from that of the protruding ridge line portion 72 in the bottom view. Similarly, the second left extending portion 76 is provided so as to be offset rearward with respect to the protruding ridge line portion 72 of the central protruding portion 53 and to have a different shape (inclined shape) when viewed from the bottom. The first left extending portion 75 is provided so as to be offset rearward with respect to the protruding ridge line portion 72 of the central protruding portion 53.
　左延出部５４は、車体左側に備えられた変速機ケース２１およびエアクリーナ２２の各吸気口２７，２８よりも前方に位置している。これら車両機能部品の各吸気口２７，２８に対し、左延出部５４の少なくとも外側部（第三左延出部７７）の位置および形状を適宜設定することで、各吸気口２７，２８に対する水掛かりが抑えやすくなる。車体左側にはサイドスタンド３６が配置されており、このサイドスタンド３６の基端部（可動部）に対する水掛かりも、サイドスタンド３６の前方に位置する左延出部５４によって抑制される。左延出部５４は、あたかもサイドスタンド３６の基端部を避けるように、下面視でＶ字状の屈曲形状をなしている。 The left extension portion 54 is located in front of the intake ports 27 and 28 of the transmission case 21 and the air cleaner 22 provided on the left side of the vehicle body. By appropriately setting the position and shape of at least the outer portion (third left extension portion 77) of the left extension portion 54 with respect to the intake ports 27 and 28 of these vehicle functional parts, the intake ports 27 and 28 can be respectively set. It becomes easier to suppress water splashing. A side stand 36 is arranged on the left side of the vehicle body, and water splashing on the base end portion (movable portion) of the side stand 36 is also suppressed by the left extending portion 54 located in front of the side stand 36. The left extending portion 54 has a V-shaped bent shape in a bottom view so as to avoid the base end portion of the side stand 36.
　図５を併せて参照し、右延出部５５は、第一右延出部８１と、第二右延出部８２と、第三右延出部８３と、を備えている。
　第一右延出部８１は、中央突出部５３の後端部の右側方において、中央突出部５３と右延長部５９との間で車幅方向に延びている。
　第二右延出部８２は、第一右延出部８１の右端部から右延長部５９の車幅方向内側の内側縁に沿って後方へ延びている。 With reference to FIG. 5, the right extension portion 55 includes a first right extension portion 81, a second right extension portion 82, and a third right extension portion 83.
The first right extending portion 81 extends in the vehicle width direction between the central protruding portion 53 and the right extending portion 59 on the right side of the rear end portion of the central protruding portion 53.
The second right extension portion 82 extends rearward from the right end portion of the first right extension portion 81 along the inner inner edge of the right extension portion 59 in the vehicle width direction.
　第三右延出部８３は、第二右延出部８２の後端部から車幅方向外側へ延びている。第三右延出部８３は、カバー下面部５７からカバー右側部５７ｃに回り込むように延びている。第三右延出部８３は、カバー右側部５７ｃにおいてカバー外側に突出している。
　右延出部５５は、第一右延出部８１、第二右延出部８２および第三右延出部８３が下面しでクランク状に折れ曲がって連なった態様をなしている。 The third right extending portion 83 extends outward in the vehicle width direction from the rear end portion of the second right extending portion 82. The third right extending portion 83 extends from the lower surface portion 57 of the cover to the right side portion 57c of the cover. The third right extending portion 83 projects to the outside of the cover at the right side portion 57c of the cover.
The right extension portion 55 has a mode in which the first right extension portion 81, the second right extension portion 82, and the third right extension portion 83 are bent in a crank shape on the lower surface and are connected to each other.
　右延出部５５の車幅方向外側部（第三右延出部８３）は、中央突出部５３の突出稜線部７２に対して、後方にオフセットした位置（車両前後方向で異なる位置）に設けられている。第一右延出部８１も同様に、中央突出部５３の突出稜線部７２に対して、後方にオフセットして設けられている。第二右延出部８２は、中央突出部５３の突出稜線部７２よりも後方に位置し、かつ中央突出部５３の突出稜線部７２と直交する直線形状に設けられている。 The outer portion of the right extending portion 55 in the vehicle width direction (third right extending portion 83) is provided at a position offset rearward (a position different in the vehicle front-rear direction) with respect to the protruding ridge line portion 72 of the central protruding portion 53. Has been done. Similarly, the first right extending portion 81 is also provided so as to be offset rearward with respect to the protruding ridge line portion 72 of the central protruding portion 53. The second right extending portion 82 is located behind the protruding ridge line portion 72 of the central protruding portion 53, and is provided in a linear shape orthogonal to the protruding ridge line portion 72 of the central protruding portion 53.
　右延出部５５は、車体右側に備えられた排気管３７よりも前方に位置している（図２参照）。この排気管３７に対し、右延出部５５の少なくとも外側部（第三右延出部８３）の位置および形状を適宜設定することで、排気管３７に対する水掛かりが抑えやすくなる。右延出部５５は、中央突出部５３のよりも後方に位置するピボット軸２９よりもさらに後方まで延びている。第三右延出部８３は、ピボット軸２９よりも後方に位置している。これにより、第三右延出部８３が可及的に排気管３７に近付き、排気管３７への水掛かりを制御しやすくなる。 The right extension portion 55 is located in front of the exhaust pipe 37 provided on the right side of the vehicle body (see FIG. 2). By appropriately setting the position and shape of at least the outer portion (third right extending portion 83) of the right extending portion 55 with respect to the exhaust pipe 37, it becomes easy to suppress water splashing on the exhaust pipe 37. The right extending portion 55 extends further rearward than the pivot shaft 29 located behind the central protruding portion 53. The third right extension portion 83 is located behind the pivot shaft 29. As a result, the third right extending portion 83 approaches the exhaust pipe 37 as much as possible, and it becomes easy to control the water splashing on the exhaust pipe 37.
　以上説明したように、上記実施形態における鞍乗り型車両は、車体下面を覆うアンダーカバー４０を備えた自動二輪車１において、前記アンダーカバー４０の車幅方向内側の第一範囲Ｈ１の後部には、下方に突出する中央突出部５３を備えている。前記第一範囲Ｈ１よりも車幅方向外側の第二範囲Ｈ２には、下方に突出する突出部であり、前記中央突出部５３の車幅方向外側に連なって車幅方向外側に延びる左右の外側延出部５４，５５を備えている。前記外側延出部５４，５５の外側部（第三左延出部７７、第三右延出部８３）は、前記中央突出部５３の突出稜線部７２に対して車両前後方向の位置を変化させて設けられる。 As described above, the saddle-riding vehicle according to the above embodiment is a motorcycle 1 provided with an undercover 40 that covers the lower surface of the vehicle body. A central protrusion 53 that protrudes downward is provided. The second range H2, which is outside the first range H1 in the vehicle width direction, is a protruding portion that protrudes downward, and is connected to the outside of the central protruding portion 53 in the vehicle width direction and extends outward in the vehicle width direction. It is provided with extension portions 54 and 55. The outer portions (third left extension portion 77, third right extension portion 83) of the outer extension portions 54 and 55 change their positions in the vehicle front-rear direction with respect to the protruding ridge line portion 72 of the central protrusion 53. It is provided.
　この構成によれば、アンダーカバー４０の車幅方向内側の第一範囲Ｈ１では、アンダーカバー４０の下面を流れる水をカバー後部の中央突出部５３によって滴下または飛散させる。中央突出部５３の車幅方向外側に回り込んだ水は、中央突出部５３の車幅方向外側に連なる外側延出部５４，５５によって滴下または飛散させる。外側延出部５４，５５は、中央突出部５３に対して車両前後方向の位置を変化させる外側部を有するので、以下の効果を奏する。すなわち、中央突出部５３は、車幅方向内側の水切り位置を規定する。外側延出部５４，５５は、中央突出部５３の前後方向位置とは独立して、水を滴下または飛散させる位置を設定する。このため、アンダーカバー４０の後端部における水切り性を確保するとともに、車幅方向外側に配置された車両部品への水掛かりを抑えることができる。 According to this configuration, in the first range H1 inside the undercover 40 in the vehicle width direction, water flowing on the lower surface of the undercover 40 is dropped or scattered by the central protrusion 53 at the rear of the cover. The water that wraps around the central protrusion 53 to the outside in the vehicle width direction is dropped or scattered by the outer extension portions 54, 55 that are connected to the outside of the central protrusion 53 in the vehicle width direction. Since the outer extending portions 54 and 55 have an outer portion that changes the position in the vehicle front-rear direction with respect to the central protruding portion 53, the following effects are obtained. That is, the central protrusion 53 defines the draining position on the inner side in the vehicle width direction. The outer extending portions 54 and 55 set a position for dropping or scattering water independently of the position in the front-rear direction of the central protruding portion 53. Therefore, it is possible to secure the drainage property at the rear end portion of the undercover 40 and suppress the water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
　上記実施形態における鞍乗り型車両において、前記外側延出部５４，５５は、前記中央突出部５３に対して車幅方向両側に設けられている。
　この構成によれば、外側延出部５４，５５を車幅方向両側（左右両側）に設けることにより、以下の効果を奏する。すなわち、車幅方向外側に配置された互いに異なる車両部品に対して、それぞれ適した位置で水を滴下または飛散させることが可能となる。このため、車幅方向外側に配置された車両部品への水掛かりをより一層抑えることができる。 In the saddle-riding vehicle according to the above embodiment, the outer extending portions 54 and 55 are provided on both sides in the vehicle width direction with respect to the central protruding portion 53.
According to this configuration, the following effects are obtained by providing the outer extending portions 54 and 55 on both sides (left and right sides) in the vehicle width direction. That is, it is possible to drip or scatter water at suitable positions for different vehicle parts arranged outside in the vehicle width direction. Therefore, it is possible to further suppress water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
　上記実施形態における鞍乗り型車両において、前記車幅方向両側の前記外側延出部５４，５５の外側部は、前記中央突出部５３よりも後方に変位している。
　この構成によれば、車両走行中に中央突出部５３の車幅方向外側に回り込んだ水は、中央突出部５３の後方に流れるが、この水を外側延出部５４，５５によって受け止めやすくなる。このため、車幅方向外側に配置された車両部品への水掛かりをより一層抑えることができる。実施形態では、左右外側延出部５４，５５の外側部（第三左延出部７７、第三右延出部８３）の両方が中央突出部５３よりも後方に変位しているが、一方のみが後方に変位する構成でもよい。 In the saddle-riding vehicle according to the above embodiment, the outer portions of the outer extending portions 54 and 55 on both sides in the vehicle width direction are displaced rearward from the central protruding portion 53.
According to this configuration, the water that wraps around the central protrusion 53 to the outside in the vehicle width direction while the vehicle is running flows behind the central protrusion 53, but this water is easily received by the outer extension portions 54 and 55. .. Therefore, it is possible to further suppress water splashing on the vehicle parts arranged on the outer side in the vehicle width direction. In the embodiment, both the outer portions (third left extension portion 77, third right extension portion 83) of the left and right outer extension portions 54 and 55 are displaced rearward from the central protrusion 53, but one of them. It may be configured in which only the rear displacement.
　上記実施形態における鞍乗り型車両において、前記アンダーカバー４０の前記第一範囲Ｈ１の前部の上方に、ファン４４を有するラジエータ４１を備えている。前記アンダーカバー４０は、前記第一範囲Ｈ１の前部から後部に渡って、前記ラジエータ４１からの排風を前記アンダーカバー４０の下方に導いた後に後方に流す導風部５６を備えている。前記中央突出部５３は、前記ラジエータ４１のファン４４の外径Ｄ１よりも車幅方向で幅広に設けられている。
　この構成によれば、ラジエータ４１からの排風は、第一範囲Ｈ１に備える導風部５６によって後方に流れる。ラジエータ４１からの排風の幅は、概ねファンの外径Ｄ１に依存する。このファンの外径Ｄ１よりも幅広となるよう中央突出部５３を設けることで、ラジエータ４１からの排風に伴う水の流れを中央突出部５３で受け止めやすくなる。このため、アンダーカバー４０の第一範囲Ｈ１における水切り性を良好に確保することができる。 In the saddle-riding vehicle according to the above embodiment, a radiator 41 having a fan 44 is provided above the front portion of the first range H1 of the undercover 40. The undercover 40 includes a wind guide portion 56 that guides the exhaust air from the radiator 41 below the undercover 40 and then flows it rearward from the front portion to the rear portion of the first range H1. The central protrusion 53 is provided wider in the vehicle width direction than the outer diameter D1 of the fan 44 of the radiator 41.
According to this configuration, the exhaust air from the radiator 41 flows backward by the air guide portion 56 provided in the first range H1. The width of the exhaust air from the radiator 41 largely depends on the outer diameter D1 of the fan. By providing the central protrusion 53 so as to be wider than the outer diameter D1 of the fan, the central protrusion 53 can easily catch the flow of water accompanying the exhaust air from the radiator 41. Therefore, it is possible to ensure good drainage in the first range H1 of the undercover 40.
　上記実施形態における鞍乗り型車両において、前記導風部５６は、車両前後方向に延びて後端が前記中央突出部５３に接続される突条８４を備えている。
　この構成によれば、車両前後方向に延びる突条８４により、ラジエータ４１からの排風を中央突出部５３に至るまで整流するので、以下の効果を奏する。すなわち、ラジエータ４１からの排風を中央突出部５３まで円滑に流すので、ラジエータ４１からの排風に伴う水の流れを中央突出部５３で受け止めやすくなる。このため、アンダーカバー４０の第一範囲Ｈ１における水切り性を良好に確保することができる。 In the saddle-riding vehicle according to the above embodiment, the wind guide portion 56 includes a ridge 84 extending in the front-rear direction of the vehicle and having a rear end connected to the central protrusion 53.
According to this configuration, the ridge 84 extending in the front-rear direction of the vehicle rectifies the exhaust air from the radiator 41 up to the central protrusion 53, so that the following effects are obtained. That is, since the exhaust air from the radiator 41 is smoothly flowed to the central protrusion 53, the flow of water accompanying the exhaust air from the radiator 41 can be easily received by the central protrusion 53. Therefore, it is possible to ensure good drainage in the first range H1 of the undercover 40.
　上記実施形態における鞍乗り型車両において、前記外側延出部５４，５５は、前記ラジエータ４１のファン４４の外径Ｄ１よりも車幅方向外側に位置している。
　この構成によれば、外側延出部５４，５５の周辺では、ラジエータ４１からの排風の影響を受け難くなる。このため、外側延出部５４，５５による水の滴下または飛散をコントロールしやすくなり、車幅方向外側に配置された車両部品への水掛かりをより一層抑えることができる。 In the saddle-riding vehicle according to the above embodiment, the outer extending portions 54 and 55 are located outside the outer diameter D1 of the fan 44 of the radiator 41 in the vehicle width direction.
According to this configuration, the area around the outer extension portions 54 and 55 is less susceptible to the influence of the exhaust air from the radiator 41. Therefore, it becomes easy to control the dropping or scattering of water by the outer extending portions 54 and 55, and it is possible to further suppress the water splashing on the vehicle parts arranged on the outer side in the vehicle width direction.
　上記実施形態における鞍乗り型車両において、車幅方向一側（左側）にパワーユニット２０の排気管３７を備えている。前記車幅方向一側の前記左外側延出部５４は、前記排気管３７の前方に位置している。
　この構成によれば、車幅方向一側に配置された排気管３７の前方に、同じく車幅方向一側に配置された外側延出部５４が位置するので、排気管３７への水掛かりを良好に抑えることができる。 In the saddle-riding vehicle according to the above embodiment, the exhaust pipe 37 of the power unit 20 is provided on one side (left side) in the vehicle width direction. The left outer extending portion 54 on one side in the vehicle width direction is located in front of the exhaust pipe 37.
According to this configuration, the outer extension portion 54, which is also arranged on the one side in the vehicle width direction, is located in front of the exhaust pipe 37 arranged on the one side in the vehicle width direction. It can be suppressed well.
　上記実施形態における鞍乗り型車両において、前端側が車体フレーム１１にピボット軸２９を介して揺動可能に支持され、後端側に後輪４を支持するスイングアーム（変速機ケース２１）を備えている。前記ピボット軸２９は、前記中央突出部５３よりも後方に位置し、前記車幅方向一側の前記左外側延出部５４は、前記ピボット軸２９よりも後方に位置している。
　この構成によれば、車幅方向一側に配置された外側延出部５４が、中央突出部５３よりも後方に位置するピボット軸２９よりもさらに後方に位置する。このように、外側延出部５４が中央突出部５３の後方に大きく変位して排気管３７に近付くので、排気管３７への水掛かりを良好に抑えることができる。 In the saddle-riding vehicle according to the above embodiment, the front end side is swingably supported by the vehicle body frame 11 via the pivot shaft 29, and the rear end side is provided with a swing arm (transmission case 21) that supports the rear wheels 4. There is. The pivot shaft 29 is located behind the central protrusion 53, and the left outer extension portion 54 on one side in the vehicle width direction is located behind the pivot shaft 29.
According to this configuration, the outer extending portion 54 arranged on one side in the vehicle width direction is located further behind the pivot shaft 29 located behind the central protruding portion 53. In this way, since the outer extending portion 54 is largely displaced to the rear of the central protruding portion 53 and approaches the exhaust pipe 37, it is possible to satisfactorily suppress water splashing on the exhaust pipe 37.
　上記実施形態における鞍乗り型車両において、前記車幅方向一側に対する車幅方向他側（右側）にパワーユニット２０の吸気口２７，２８を備えている。前記車幅方向他側の前記右外側延出部５５は、前記吸気口２７，２８よりも前方に位置している。
　この構成によれば、車幅方向他側に配置された吸気口２７，２８の前方に、同じく車幅方向他側に配置された外側延出部５５が位置する。このため、吸気口２７，２８への水掛かりを良好に抑えることができる。 In the saddle-riding vehicle according to the above embodiment, the intake ports 27 and 28 of the power unit 20 are provided on the other side (right side) in the vehicle width direction with respect to one side in the vehicle width direction. The right outer extension portion 55 on the other side in the vehicle width direction is located in front of the intake ports 27 and 28.
According to this configuration, the outer extension portion 55 also arranged on the other side in the vehicle width direction is located in front of the intake ports 27 and 28 arranged on the other side in the vehicle width direction. Therefore, it is possible to satisfactorily suppress water splashing on the intake ports 27 and 28.
　上記実施形態における鞍乗り型車両において、前記車幅方向他側で前記吸気口２７，２８よりも前方に、車体を傾斜姿勢で支持するサイドスタンド３６を備えている。前記車幅方向他側の前記外側延出部５５は、車両前後方向一側に凸のＶ字状に形成されている。
　この構成によれば、車幅方向他側に配置されたサイドスタンド３６に対し、同じく車幅方向他側に配置された外側延出部５５がＶ字状に屈曲するので、以下の効果を奏する。すなわち、サイドスタンド３６の可動範囲を避けるように外側延出部５５を屈曲させることで、サイドスタンド３６と外側延出部５５とのクリアランスを確保することができる。 The saddle-riding vehicle according to the above embodiment includes a side stand 36 that supports the vehicle body in an inclined posture in front of the intake ports 27 and 28 on the other side in the vehicle width direction. The outer extending portion 55 on the other side in the vehicle width direction is formed in a convex V shape on one side in the vehicle front-rear direction.
According to this configuration, the outer extending portion 55 also arranged on the other side in the vehicle width direction bends in a V shape with respect to the side stand 36 arranged on the other side in the vehicle width direction, so that the following effects are obtained. That is, by bending the outer extending portion 55 so as to avoid the movable range of the side stand 36, the clearance between the side stand 36 and the outer extending portion 55 can be secured.
　なお、本発明は、図面を参照して説明した上述の実施形態に限定されるものではなく、その技術的範囲において様々な変形例が考えられる。
　例えば、実施形態のアンダーカバー４０は合成樹脂等により一体形成されるが、これに限らず、複数部品からなるものであったり分割式であってもよい。
　本発明を適用する車両には、自動二輪車（原動機付自転車及びスクータ型車両を含む）のみならず、三輪（前一輪かつ後二輪の他に、前二輪かつ後一輪の車両も含む）又は四輪の車両も含まれる。
　そして、上記実施形態における構成は本発明の一例であり、実施形態の構成要素を周知の構成要素に置き換える等、本発明の要旨を逸脱しない範囲で種々の変更が可能である。 The present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope thereof.
For example, the undercover 40 of the embodiment is integrally formed of a synthetic resin or the like, but the present invention is not limited to this, and the undercover 40 may be composed of a plurality of parts or may be a split type.
Vehicles to which the present invention is applied include not only motorcycles (including motorized bicycles and scooter type vehicles) but also three wheels (including front two-wheel and rear one-wheel vehicles in addition to front one-wheel and rear two-wheel) or four-wheel Vehicles are also included.
The configuration in the above embodiment is an example of the present invention, and various modifications can be made without departing from the gist of the present invention, such as replacing the constituent elements of the embodiment with well-known constituent elements.
　１　自動二輪車（鞍乗り型車両）
　４　後輪
　１１　車体フレーム
　２０　パワーユニット
　２１　変速機ケース（スイングアーム）
　２７，２８　吸気口
　２９　ピボット軸
　３６　サイドスタンド
　３７　排気管
　４０　アンダーカバー
　４１　ラジエータ
　４４　ファン
　５３　中央突出部
　５４，５５　外側延出部
　５６　導風部
　８４　突条（突形状部）
　Ｄ１　外径
　Ｈ１　第一範囲
　Ｈ２　第二範囲 1 Motorcycle (saddle-riding vehicle)
4 Rear wheel 11 Body frame 20 Power unit 21 Transmission case (swing arm)
27, 28 Intake port 29 Pivot shaft 36 Side stand 37 Exhaust pipe 40 Undercover 41 Radiator 44 Fan 53 Central protrusion 54, 55 Outer extension 56 Wind guide 84 Protrusion (protruding shape)
D1 outer diameter H1 first range H2 second range

Claims (10)

  1. 　車体下面を覆うアンダーカバー（４０）を備えた鞍乗り型車両（１）において、
    　前記アンダーカバー（４０）の車幅方向内側の第一範囲（Ｈ１）には、下方に突出する中央突出部（５３）を備え、
    　前記第一範囲（Ｈ１）よりも車幅方向外側の第二範囲（Ｈ２）には、下方に突出する突出部であり、前記中央突出部（５３）の車幅方向外側に連なって車幅方向外側に延びる外側延出部（５４，５５）を備え、
    　前記外側延出部（５４，５５）の外側部は、前記中央突出部（５３）に対して車両前後方向の位置を変化させて設けられる鞍乗り型車両。     In a saddle-riding vehicle (1) equipped with an undercover (40) that covers the lower surface of the vehicle body,
    The first range (H1) inside the undercover (40) in the vehicle width direction is provided with a central protrusion (53) protruding downward.
    The second range (H2) outside the vehicle width direction from the first range (H1) is a protruding portion that protrudes downward, and is connected to the outside of the central protruding portion (53) in the vehicle width direction in the vehicle width direction. With an outward extension (54,55) extending outward
    The outer portion of the outer extending portion (54, 55) is a saddle-riding vehicle provided by changing the position of the outer extending portion (54, 55) in the front-rear direction of the vehicle with respect to the central protruding portion (53).
  2. 　前記外側延出部（５４，５５）は、前記中央突出部（５３）に対して車幅方向両側に設けられている請求項１に記載の鞍乗り型車両。 The saddle-riding vehicle according to claim 1, wherein the outer extending portions (54, 55) are provided on both sides in the vehicle width direction with respect to the central protruding portion (53).
  3. 　前記車幅方向両側の前記外側延出部（５４，５５）の外側部の少なくとも一方は、前記中央突出部（５３）よりも後方に変位している請求項２に記載の鞍乗り型車両。 The saddle-riding vehicle according to claim 2, wherein at least one of the outer portions of the outer extending portions (54, 55) on both sides in the vehicle width direction is displaced rearward from the central protruding portion (53).
  4. 　前記アンダーカバー（４０）の前記第一範囲（Ｈ１）の上方に、ファン（４４）を有するラジエータ（４１）を備え、
    　前記アンダーカバー（４０）は、前記第一範囲（Ｈ１）の前部から後部に渡って、前記ラジエータ（４１）からの排風を前記アンダーカバー（４０）の下方に導いた後に後方に流す導風部（５６）を備え、
    　前記中央突出部（５３）は、前記ラジエータ（４１）のファン（４４）の外径よりも車幅方向で幅広に設けられている請求項１から３の何れか一項に記載の鞍乗り型車両。     A radiator (41) having a fan (44) is provided above the first range (H1) of the undercover (40).
    The undercover (40) guides the exhaust air from the radiator (41) to the lower side of the undercover (40) and then flows backward from the front part to the rear part of the first range (H1). Equipped with a wind section (56)
    The saddle-riding type according to any one of claims 1 to 3, wherein the central protrusion (53) is provided wider in the vehicle width direction than the outer diameter of the fan (44) of the radiator (41). vehicle.
  5. 　前記導風部（５６）は、車両前後方向に延びて後端が前記中央突出部（５３）に接続される突形状部（８４）を備えている請求項４に記載の鞍乗り型車両。 The saddle-riding vehicle according to claim 4, wherein the wind guide portion (56) includes a protruding portion (84) extending in the front-rear direction of the vehicle and having a rear end connected to the central projecting portion (53).
  6. 　前記外側延出部（５４，５５）は、前記ラジエータ（４１）のファン（４４）の外径よりも車幅方向外側に位置している請求項４又は５に記載の鞍乗り型車両。 The saddle-riding vehicle according to claim 4 or 5, wherein the outer extending portion (54, 55) is located outside the outer diameter of the fan (44) of the radiator (41) in the vehicle width direction.
  7. 　車幅方向一側にパワーユニット（２０）の排気管（３７）を備え、
    　前記車幅方向一側の前記外側延出部（５４）は、前記排気管（３７）の前方に位置している請求項１から６の何れか一項に記載の鞍乗り型車両。     The exhaust pipe (37) of the power unit (20) is provided on one side in the vehicle width direction.
    The saddle-riding vehicle according to any one of claims 1 to 6, wherein the outer extending portion (54) on one side in the vehicle width direction is located in front of the exhaust pipe (37).
  8. 　前端側が車体フレーム（１１）にピボット軸（２９）を介して揺動可能に支持され、後端側に後輪（４）を支持するスイングアーム（２１）を備え、
    　前記ピボット軸（２９）は、前記中央突出部（５３）よりも後方に位置し、
    　前記車幅方向一側の前記外側延出部（５４）は、前記ピボット軸（２９）よりも後方に位置している請求項７に記載の鞍乗り型車両。     The front end side is swingably supported by the vehicle body frame (11) via the pivot shaft (29), and the rear end side is provided with a swing arm (21) that supports the rear wheels (4).
    The pivot shaft (29) is located rearward of the central protrusion (53).
    The saddle-riding vehicle according to claim 7, wherein the outer extending portion (54) on one side in the vehicle width direction is located behind the pivot shaft (29).
  9. 　前記車幅方向一側に対する車幅方向他側にパワーユニット（２０）の吸気口（２７，２８）を備え、
    　前記車幅方向他側の前記外側延出部（５５）は、前記吸気口（２７，２８）よりも前方に位置している請求項７又は８に記載の鞍乗り型車両。     The intake ports (27, 28) of the power unit (20) are provided on the other side in the vehicle width direction with respect to one side in the vehicle width direction.
    The saddle-riding vehicle according to claim 7 or 8, wherein the outer extending portion (55) on the other side in the vehicle width direction is located in front of the intake port (27, 28).
  10. 　前記車幅方向他側で前記吸気口（２７，２８）よりも前方に、車体を傾斜姿勢で支持するサイドスタンド（３６）を備え、
    　前記車幅方向他側の前記外側延出部（５５）は、車両前後方向一側に凸のＶ字状に形成されている請求項９に記載の鞍乗り型車両。     A side stand (36) for supporting the vehicle body in an inclined posture is provided in front of the intake ports (27, 28) on the other side in the vehicle width direction.
    The saddle-riding vehicle according to claim 9, wherein the outer extending portion (55) on the other side in the vehicle width direction is formed in a V shape convex on one side in the vehicle front-rear direction.
PCT/JP2021/000770 2020-01-23 2021-01-13 Saddle-type vehicle WO2021149544A1 (en)

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WO2015015609A1 (en) * 2013-07-31 2015-02-05 本田技研工業株式会社 Motorcycle body cover structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7480212B2 (en) 2022-03-28 2024-05-09 本田技研工業株式会社 Saddle type vehicle

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