WO2020194678A1 - 鞍乗り型車両 - Google Patents
鞍乗り型車両 Download PDFInfo
- Publication number
- WO2020194678A1 WO2020194678A1 PCT/JP2019/013655 JP2019013655W WO2020194678A1 WO 2020194678 A1 WO2020194678 A1 WO 2020194678A1 JP 2019013655 W JP2019013655 W JP 2019013655W WO 2020194678 A1 WO2020194678 A1 WO 2020194678A1
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- WIPO (PCT)
- Prior art keywords
- opening
- radiator
- vehicle
- saddle
- cover
- Prior art date
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- 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
Definitions
- the present invention comprises an engine supported by a vehicle body frame and at least partially covered from the side with a vehicle body cover, a radiator that circulates coolant between the engines and releases the heat energy of the engine to the outside air, and lateral sides.
- the present invention relates to a saddle-mounted vehicle provided with a radiator cover that covers the radiator and partitions the flow path.
- Patent Document 1 discloses a saddle-riding vehicle equipped with a water-cooled engine.
- a radiator is connected to the engine.
- the radiator circulates coolant to and from the engine.
- the radiator releases the heat energy of the engine transmitted to the coolant to the outside air.
- the radiator is covered with a radiator cover.
- a flow path that opens to the outside of the vehicle body cover in a side view is partitioned.
- a plurality of wing plates are arranged in the opening of the flow path. If the space between the blades is widened, the aperture ratio of the opening is increased, and efficient introduction of the running wind from the opening can be realized. On the other hand, if the space between the wing plates is widened, there is a concern that foreign matter may flow toward the radiator.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a radiator cover that can contribute to the efficient introduction of running wind while effectively preventing the inflow of foreign matter.
- a coolant is circulated between the engine supported by the vehicle body frame and at least partially covered with the vehicle body cover from the side, and the thermal energy of the engine is used as outside air.
- a saddle-mounted vehicle including a radiator that discharges to the radiator and a radiator cover that covers the radiator from the side and partitions an air flow path toward the radiator, the flow path is covered with a vehicle body cover in a vehicle side view.
- a second opening which is composed of a slit narrower in the front-rear direction of the vehicle than the first opening, and at least partially exposed to the outside of the vehicle body cover in a side view, and a vehicle than the first opening. It includes a third opening which is divided by plate-shaped members arranged at small intervals in the front-rear direction and at least partially exposed to the outside of the vehicle body cover in a side view.
- the first opening and the second opening are arranged in front of the vertical plane including the rotation axis of the crankshaft incorporated in the engine.
- the three openings are arranged on the rear side of the first opening and the second opening in the front-rear direction of the vehicle, and face the radiator on the rear side of the vertical surface.
- the radiator cover in addition to the configuration of the second side surface, includes a plate body extending in parallel with the radiator to partition the first opening and the second opening.
- the radiator cover projects outward in the vehicle width direction toward the rear and includes a frame body that supports the plate-shaped member.
- the saddle-riding vehicle is a protrusion protruding from the inner surface of the vehicle body cover at a position facing at least one of the first opening and the second opening. To be equipped.
- the vehicle body cover covers the first opening and is upward from the root of the tandem step protruding outward from the vehicle body cover. It has a covering part that spreads out.
- the first opening since the first opening is covered with the vehicle body cover, it is possible to have a larger opening ratio than the second opening and the third opening while preventing foreign matter from entering toward the radiator. Therefore, as the aperture ratio increases, the first opening can contribute to the efficient introduction of running wind.
- the rotation axis of the crankshaft corresponds to the center position of the radiator. Therefore, the first opening and the second opening are arranged in front of the central position of the radiator.
- the running wind satisfactorily flows into the radiator from the first opening and the second opening.
- the third opening is arranged behind the center position of the radiator, the inflow direction of the running wind can be adjusted by the plate-shaped member, so that the running wind flows well into the radiator from the third opening as well. be able to.
- the plate body can guide the air flowing into the inside of the radiator cover from the first opening and the second opening along the radiator.
- the traveling wind flowing from the first opening and the second opening can spread not only to the front side of the radiator but also to the rear side. In this way, the cooling performance can be improved.
- the frame body arranges a plate-shaped member on the outer side in the vehicle width direction toward the rear. Therefore, the plate-shaped member can effectively catch the traveling wind flowing in the front-rear direction. More running wind can flow towards the radiator from the third opening. In this way, the cooling performance can be improved.
- the air flowing along the inner surface of the vehicle body cover flows toward the first opening and the second opening by the action of the protrusions.
- the flow rate of air flowing in from the first opening and the second opening increases. In this way, the cooling performance can be improved.
- the tandem occupant's foot is placed on the tandem step.
- the vehicle body cover can prevent the foot from coming into contact with the radiator cover.
- FIG. 1 is a left side view schematically showing the structure of a scooter type motorcycle according to an embodiment of the present invention.
- FIG. 2 is a cross-sectional view taken along the line 2-2 of FIG.
- FIG. 3 is an enlarged side view of the engine as seen from the arrow 3 of FIG.
- FIG. 4 is an enlarged right side view of a scooter type motorcycle.
- FIG. 5 is an enlarged perspective view of the radiator cover.
- FIG. 6 is an enlarged perspective view of the vicinity of the tandem step which schematically shows the covering portion of the vehicle body cover.
- the front-rear, up-down, and left-right directions refer to the directions seen by the occupants on the motorcycle.
- FIG. 1 schematically shows a scooter-type motorcycle according to an embodiment of a saddle-riding vehicle.
- the motorcycle 11 includes a vehicle body frame 12 and a vehicle body cover 13 mounted on the vehicle body frame 12.
- the vehicle body frame 12 is connected to the head pipe 14, a pair of left and right main frames 15 that descend from the head pipe 14 behind the front wheel WF, are curved at the lower end, and extend rearward in parallel with the ground, and the rear portion of the main frame 15.
- the cross pipe 16 extends in the vehicle width direction, and the rear frame 17 continuously rises in front of the rear wheel WR from the main frame 15, curves at the upper end, and gently extends rearward in the vehicle front-rear direction.
- the head pipe 14 is rotatably supported by a front fork 18 that rotatably supports the front wheel WF and a rod-shaped steering handle 19.
- the occupant seat 21 is mounted on the vehicle body cover 13 above the rear frame 17.
- the vehicle body cover 13 includes a front cover 22 that covers the head pipe 14 from the front, a leg shield 23 that is continuous from the front cover 22, and a main frame 15 that is continuous from the lower end of the leg shield 23 between the occupant seat 21 and the front wheel WF. It is provided with a floor step 24a arranged above the above. The driver seated on the occupant seat 21 can rest his foot on the floor step 24a.
- a tandem step 24b is arranged below the passenger seat 21 and in front of the rear wheel WR.
- the tandem step 24b is foldably fixed to the rear frame 17.
- the tandem step 24b projects outward from the vehicle body cover 13 in the vehicle width direction. A tandem occupant sitting on the occupant seat 21 behind the driver can rest his foot on the tandem step 42b.
- a unit swing type power unit 25 is arranged in the space below the rear frame 17.
- the power unit 25 includes a water-cooled single-cylinder engine 26 and a transmission device 27 that is connected to the engine 26 and the rear wheel WR and transmits the output of the engine 26 to the rear wheel WR.
- the axle of the rear wheel WR is rotatably supported by both sides at the rear end of the power unit 25 around a horizontal axis.
- the engine 26 is positioned in front of the crankcase 28, which is coupled to the crankcase 28 and is coupled to the crankcase 28, which rotatably supports the crankshaft (described later) around the rotation axis Rx extending parallel to the axle of the rear wheel WR.
- a cylinder block 29, a cylinder head 31 coupled to the cylinder block 29, and a head cover 32 coupled to the cylinder head 31 are provided.
- the rear wheel WR is arranged behind the crankcase 28.
- the crankcase 28 is rotatably connected to the rear frame 17 around an axis parallel to the rotation axis Rx.
- the crankcase 28 is connected by a link 34 to a bracket 33 that is coupled to the curved region of the rear frame 17.
- the transmission case 27a of the transmission device 27 is coupled to the crankcase 28.
- a rear cushion unit 35 is arranged between the rear frame 17 and the power unit 25 at a position away from the link 34 and the bracket 33.
- Such a power unit 25 functions as a suspension device for the rear wheel WR.
- the intake device 37 and the exhaust device 38 are connected to the cylinder head 31.
- the intake device 37 includes an air cleaner 39 that is supported by the transmission case 27a to suck and purify the outside air, and a throttle body 41 as an intake system component that connects the air cleaner 39 to the cylinder head 31.
- a fuel injection device 42 is attached to the upper side wall of the cylinder head 31.
- the exhaust device 38 includes an exhaust pipe 43 extending rearward from the lower side wall of the cylinder head 31 through the lower side of the engine 26, and a silencer (not shown) connected to the downstream end of the exhaust pipe 43 and connected to the crankcase 28. And.
- the crankcase 28 is divided into a first case half body 28a and a second case half body 28b.
- the first case half body 28a and the second case half body 28b cooperate to partition the crank chamber 44.
- the crank of the crankshaft 45 is housed in the crank chamber 44.
- a bearing 46a that rotatably supports the crankshaft 45 is assembled to the first case half body 28a.
- a bearing 46b that rotatably supports the crankshaft 45 is assembled to the second case half body 28b.
- the cylinder bore 47 is partitioned in the cylinder block 29.
- the piston 48 is fitted into the cylinder bore 47 so as to be slidable along the cylinder axis C.
- the piston 48 is connected to the crank of the crankshaft 45 by a connecting rod 49.
- the cylinder axis C inclines slightly forward from the horizontal.
- the cylinder block 29 guides the linear reciprocating motion of the piston 48 along the cylinder axis C.
- the linear reciprocating motion of the piston 48 is converted into the rotational motion of the crankshaft 45.
- the combustion chamber 51 is partitioned between the piston 48 and the cylinder head 31.
- the air-fuel mixture is introduced into the combustion chamber 51 via the intake device 37.
- the exhaust gas in the combustion chamber 51 is discharged through the exhaust device 38.
- the cylinder block 29 and the cylinder head 31 are formed with water jackets 52a and 52b that guide the flow of cooling water around the combustion chamber 51.
- the water jacket 52a of the cylinder block 29 is partitioned around the cylinder bore 47 along the mating surface with the cylinder head 31.
- the water jacket 52b of the cylinder head 31 extends continuously along the ceiling wall of the combustion chamber 51 to the water jacket 52a of the cylinder block 29.
- the transmission device 27 is housed in the transmission case 27a and is wound around a drive pulley 53 attached to a crankshaft 45 protruding from the outer surface of the second case half body 28b and a driven pulley 55 attached to the driven shaft 54.
- a belt-type stepless transmission (hereinafter referred to as "transmission") 57 having a V-belt 56 and steplessly shifting the rotational power transmitted from the crankshaft 45, and a transmission housed in a transmission case 27a. It is provided with a reduction gear mechanism 59 that decelerates the rotational power of 57 and transmits it to the axle 58 of the rear wheel WR.
- the transmission case 27a is fastened to the case main body 61 continuous from the second case half body 28b of the crankcase 28 and the case main body 61 to partition the transmission chamber 62 for accommodating the transmission 57 between the case main body 61.
- the case cover 63 is fastened to the case main body 61 to partition the gear chamber 64 between the case main body 61 and the case main body 61.
- a reduction gear mechanism 59 is housed in the gear chamber 64.
- the pulley half body 66 which is coaxially fixed to the crankshaft 45 and has a conical inward facing surface facing the second case half body 28b, and the pulley half body 66 and the second case half body 28b. It includes a pulley half body 67 that is coaxially supported by the crankshaft 45 so as to be movable in the axial direction of the crankshaft 45 and has a conical inward facing surface that faces the inward facing surface of the pulley half body 66.
- the V-belt 56 is wound between the inward surface of the pulley half body 66 and the inward surface of the pulley half body 67.
- a weight holding plate 68 which is fixed to the crankshaft 45 so as not to be displaced in the axial direction, faces the outward surface of the pulley half body 67.
- a centrifugal weight 69 is sandwiched between the cam surface 67a of the pulley half body 67 and the weight holding plate 68.
- the cam surface 67a moves away from the pulley half body 66 as it moves away from the rotation axis Rx of the crankshaft 45 in the centrifugal direction.
- Centrifugal force is generated in the centrifugal weight 69 as the crankshaft 45 rotates.
- the centrifugal weight 69 is displaced in the centrifugal direction by centrifugal force.
- the pulley half body 67 As the centrifugal weight 69 is displaced in the centrifugal direction while rolling and contacting the cam surface 67a, the pulley half body 67 is driven toward the pulley half body 66. In this way, the pulley half body 67 moves in the axial direction toward the pulley half body 66 according to the rotation of the crankshaft 45, and the winding radius of the V-belt 56 changes.
- the driven pulley 55 has a cylindrical shape coaxial with the driven shaft 54, is fixed to the inner cylinder 71 coaxially with the inner cylinder 71 mounted on the coaxial driven shaft 54, and faces the case cover 63.
- a pulley half body 72 having a conical inward facing surface to be matched, an outer cylinder 73 having a cylindrical shape coaxial with the driven shaft 54 and coaxially mounted on the inner cylinder 71, a pulley half body 72 and a case cover 63.
- the pulley half body 74 is fixed to the outer cylinder 73 coaxially with the outer cylinder 73 and has a conical inward facing surface facing the inward surface of the pulley half body 72.
- the V-belt 56 is wound between the inward surface of the pulley half body 72 and the inward surface of the pulley half body 74.
- the inner cylinder 71 is supported by the driven shaft 54 so as to be relatively rotatable.
- the outer cylinder 73 is supported by the inner cylinder 71 so as to be relatively rotatable and axially relatively displaceable.
- the pulley half body 74 moves closer to or away from the pulley half body 72 according to the axial relative displacement of the outer cylinder 73 and the inner cylinder 71.
- a centrifugal clutch 75 is attached to the driven shaft 54.
- the centrifugal clutch 75 includes a clutch plate 75a fixed to the inner cylinder 71.
- a string-wound spring 76 is arranged between the clutch plate 75a and the pulley half body 74.
- the string-wound spring 76 exerts an elastic force that presses the pulley half body 74 toward the pulley half body 72.
- the pulley half body 74 moves away from the pulley half body 72 in the driven pulley 55 against the elastic force of the string winding spring 76, and the winding radius of the V-belt 56 decreases. ..
- the centrifugal clutch 75 includes an outer plate 75b fixed to the driven shaft 54.
- the outer plate 75b faces the clutch plate 75a.
- the outer plate 75b is coupled to the clutch plate 75a by the action of centrifugal force. In this way, the rotation of the driven pulley 55 is transmitted to the driven shaft 54.
- the centrifugal clutch 75 establishes a power transmission state.
- the reduction gear mechanism 59 is arranged between the drive gear 77 fixed to the driven shaft 54 protruding into the gear chamber 64, the final gear 78 fixed to the axle 58 of the rear wheel WR, and the drive gear 77 and the final gear 78.
- the idle gears 79a and 79b are provided.
- the idle gears 79a and 79b are fixed to a common intermediate shaft 81.
- the drive gear 77 meshes with the idle gear 85a
- the final gear 78 meshes with the idle gear 85b. In this way, the rotation of the driven shaft 54 is decelerated and transmitted to the axle 58 of the rear wheel WR.
- An alternator (ACG) 82 is connected to one end of the crankshaft 45.
- the alternator 82 includes a tubular rotor 82a fixed to one end of a crankshaft 45 protruding from the outer surface of the first case half body 28a, and a stator 82b surrounded by the rotor 82a and arranged around the crankshaft 45.
- the stator 82b includes a plurality of stator cores fixed to the first case half body 28a and arranged in an annular shape. The coils are wound around the individual stator cores.
- the rotor 82a includes a magnet that follows an annular trajectory on the radial outer side of the stator core.
- the alternator 82 generates electricity according to the relative rotation of the rotor 82a and the stator 82b.
- the alternator 82 may be used as an ACG starter.
- a generator cover 84 forming a generator chamber 83 with the first case half body 28a is coupled to the first case half body 28a.
- the alternator 82 is housed in the generator room 83.
- the generator cover 84 is partitioned with an air introduction port 84a at a position facing one end of the crankshaft 45.
- a radiator 85 is incorporated in the air inlet 84a. The radiator 85 is located on the rotation axis Rx extending from one end of the crankshaft 45 and is connected to the crankcase 28.
- a centrifugal fan 86 that rotates around the rotation axis Rx of the crankshaft 45 is coupled to one end of the crankshaft 45.
- the centrifugal fan 86 is housed in the space inside the first case half body 28a surrounding the generator chamber 83.
- the centrifugal fan 86 includes a rotating body 86a fixed to the rotor 82a of the alternator 82, and a plurality of blades rising from the surface of the rotating body 86a in the axial direction of the rotating axis Rx and arranged in the circumferential direction around the rotating axis Rx. It is equipped with 86b.
- the engine 26 is equipped with a water pump 88 that is connected to a camshaft 87 that drives an intake valve and an exhaust valve and discharges cooling water in conjunction with the rotation of the camshaft 87.
- a water pump 88 that is connected to a camshaft 87 that drives an intake valve and an exhaust valve and discharges cooling water in conjunction with the rotation of the camshaft 87.
- the cam chain 91 is wound around the sprocket 89a of the camshaft 87 and the sprocket 89b of the crankshaft 45.
- the water pump 88 circulates the cooling water in a closed path passing through the radiator 85.
- the path connects the first pipe 92a for connecting the water jacket 52a of the cylinder block 29 to the discharge port 88a of the water pump 88 and the introduction port of the radiator 85 to the water jacket 52b of the cylinder head 31. It is formed by a second pipe 92b and a third pipe 92c that connects the thermostat 93 to the discharge port of the radiator 85.
- the thermostat 93 is connected to the suction pipe 88b of the water pump 88.
- the cooling water discharged from the water pump 88 is introduced from the first pipe 92a into the water jacket 52a of the cylinder block 29.
- the cooling water circulates through the water jacket 52a of the cylinder block 29 and the water jacket 52b of the cylinder head 31 to cool the engine 26.
- the cooling water discharged from the cylinder head 31 flows into the radiator 85 via the second pipe 92b.
- the radiator 85 exchanges heat from the cooling water to the outside air.
- the heat energy of the engine 26 is released to the outside air.
- the cooling water cooled by the radiator 85 flows into the thermostat 93 from the third pipe 92c and returns to the water pump 88. In this way, the engine 26 is cooled.
- the radiator 85 is covered from the side with the radiator cover 94.
- the radiator cover 94 partitions the air flow path 95 toward the radiator 85.
- the flow path 95 is connected to the air introduction port 84a.
- the flow path 95 has a first opening 96 and a second opening 97 arranged in front of the vertical VP including the rotation axis Rx of the crankshaft 45, and a first opening in the vehicle front-rear direction. Includes a third opening 98 that is located posterior to 96 and the second opening 97 and faces the radiator 85 posterior to the vertical VP.
- the first opening 96 is formed in a square contour with one diagonal line directed in the vertical direction.
- the second opening 97 is arranged behind the first opening 96, and is composed of slits narrower in the front-rear direction of the vehicle than the first opening 96. As shown in FIG.
- the radiator cover 94 includes a plate body 94a that extends parallel to the radiator 85 to partition the first opening 96 and the second opening 97. As shown in FIG. 4, the first opening 96 is covered with the vehicle body cover 13 when viewed from the side of the vehicle. The second opening 97 and the third opening 98 are at least partially exposed to the outside of the vehicle body cover 13 when viewed from the side of the vehicle.
- the radiator cover includes a frame body 94b that is continuous from the plate body 94a to the rear and projects outward in the vehicle width direction toward the rear.
- the frame body 94b surrounds the third opening 98.
- the frame body 94b has a beam material 101 that divides the third opening 98 into two upper and lower parts, and a third opening 98 that extends upward from the beam material 101 and is above the beam material 101.
- the upper plate piece 102 is displaced forward as it moves upward from the beam member 101.
- the upper plate pieces 102 are arranged parallel to each other. As shown in FIG. 5, the upper plate pieces 102 are arranged at a smaller interval in the vehicle front-rear direction than the first opening 96.
- the upper plate piece 102 is displaced outward as it goes to the front edge.
- the upper plate piece 102 approaches the radiator 85 as it moves upward from the beam member 101. Therefore, the upper plate piece 102 winds the traveling wind toward the horizontal plane including the rotation axis Rx of the crankshaft 45 and toward the radiator 85.
- the lower plate piece 103 is displaced forward as it moves downward from the beam member 101.
- the lower plate pieces 103 are arranged parallel to each other.
- the lower plate pieces 103 are arranged at smaller intervals in the vehicle front-rear direction than the first opening 96.
- the lower plate piece 103 is displaced outward as it goes to the front edge.
- the lower plate piece 103 approaches the radiator 85 as it moves downward from the beam member 101. Therefore, the lower plate piece 103 winds the traveling wind toward the horizontal plane including the rotation axis Rx of the crankshaft 45 and toward the radiator 85.
- a projecting piece 104 projecting from the inner surface of the vehicle body cover 13 is formed on the inner surface of the vehicle body cover 13 at a position facing at least one of the first opening 96 and the second opening 97.
- the projecting piece 104 is formed by a wall that curves inward at the edge of the vehicle body cover 13. The projecting piece 104 guides the traveling wind flowing along the inner surface of the vehicle body cover 13 toward the first opening 96 and the second opening 97.
- the vehicle body cover 13 covers the first opening 96 and includes a covering portion 105 extending upward from the root of the tandem step 24b.
- the cover portion 105 may be integrated with the vehicle body cover 13 or may be a separate body.
- the covering portion 105 separates the first opening 96 from the space on the tandem step 24b.
- the coolant circulates between the engine 26 and the radiator 85 in response to the operation of the water pump 88.
- the coolant takes heat energy from the engine 26 and flows into the radiator 85.
- the heat energy of the engine 26 is released from the radiator 85 to the outside air.
- the centrifugal fan 86 rotates according to the rotation of the crankshaft 45.
- the centrifugal fan 86 generates an air flow from the flow path 95 of the radiator cover 94 toward the air introduction port 84a of the generator cover 84.
- the traveling wind flows into the radiator cover 94 from the first opening 96, the second opening 97, and the third opening 98. In this way, while the motorcycle 11 is running, the radiator 85 is supplied with fresh running wind. Cooling of the coolant can be accelerated by the radiator 85.
- the radiator cover 94 is formed with the first opening 96, the second opening 97, and the third opening 97.
- the second opening 97 is composed of slits narrower in the front-rear direction of the vehicle than the first opening 96.
- the third opening 98 is divided into upper plate pieces 102 and lower plate pieces 103 arranged at smaller intervals in the vehicle front-rear direction than the first opening 96. Since the first opening 96 is covered with the vehicle body cover 13, it is possible to have a larger aperture ratio than the second opening 97 and the third opening 98 while preventing foreign matter from entering the radiator 85. Therefore, as the aperture ratio increases, the first opening 96 can contribute to the efficient introduction of running wind.
- the first opening 96 and the second opening 97 are arranged in front of the vertical facing PV including the rotation axis Rx of the crankshaft 45.
- the third opening 98 is arranged on the rear side of the first opening 96 and the second opening 97 in the front-rear direction of the vehicle, and faces the radiator 85 on the rear side of the vertical facing PV.
- the rotation axis Rx of the crankshaft 45 corresponds to the central position of the radiator 85
- the first opening 96 and the second opening 97 are arranged on the front side of the central position of the radiator 85.
- the running wind satisfactorily flows into the radiator 85 from the first opening 96 and the second opening 97.
- the third opening 98 is arranged on the rear side of the central position of the radiator 85, the inflow direction of the traveling wind is adjusted by the upper plate piece 102 and the lower plate piece 103. As a result, the running wind satisfactorily flows into the radiator 85 from the third opening 98 as well.
- the radiator cover 94 includes a plate body 94a that extends parallel to the radiator 85 to partition the first opening 96 and the second opening 97.
- the plate body 94a can guide the air flowing into the inside of the radiator cover 94 from the first opening 96 and the second opening 97 along the radiator 85.
- the traveling wind flowing from the first opening 96 and the second opening 97 can spread not only to the front side of the radiator 85 but also to the rear side. In this way, the cooling performance can be improved.
- the radiator cover 94 includes a frame body 94b that projects outward in the vehicle width direction toward the rear and supports the upper plate piece 102 and the lower plate piece 103.
- the frame body 94b arranges the upper plate piece 102 and the lower plate piece 103 on the outer side in the vehicle width direction toward the rear. Therefore, the upper plate piece 102 and the lower plate piece 103 can effectively capture the traveling wind flowing in the front-rear direction. More running wind can flow from the third opening 98 towards the radiator 85. In this way, the cooling performance can be improved.
- the projecting piece 104 protrudes from the inner surface of the vehicle body cover 13 at a position facing at least one of the first opening 96 and the second opening 97.
- the air flowing along the inner surface of the vehicle body cover 13 flows toward the first opening 96 and the second opening 97 by the action of the projecting pieces 104.
- the flow rate of air flowing in from the first opening 96 and the second opening 97 increases. In this way, the cooling performance can be improved.
- the vehicle body cover 13 includes a covering portion 105 that covers the first opening 96 and extends upward from the root of the tandem step 24b that protrudes outward from the vehicle body cover 13.
- a covering portion 105 that covers the first opening 96 and extends upward from the root of the tandem step 24b that protrudes outward from the vehicle body cover 13.
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Abstract
Description
12…車体フレーム
13…車体カバー
24b…タンデムステップ
26…エンジン
45…クランクシャフト
85…ラジエーター
94…ラジエーターカバー
94a…板体
94b…枠体
95…流路
96…第1開口
97…第2開口
98…第3開口
102…板状部材(上板片)
103…板状部材(下板片)
105…覆い部
Rx…(クランクシャフトの)回転軸線
VP…鉛直面
Claims (6)
- 車体フレーム(12)に支持され、少なくとも部分的に側方から車体カバー(13)で覆われるエンジン(26)と、
前記エンジン(26)との間で冷却液を循環させ、前記エンジン(26)の熱エネルギーを外気に放出するラジエーター(85)と、
側方から前記ラジエーター(85)を覆い、前記ラジエーター(85)に向かって空気の流路(95)を区画するラジエーターカバー(94)とを備える鞍乗り型車両において、
前記流路(95)は、
車両側面視で車体カバー(13)に覆われる第1開口(96)と、
前記第1開口(96)よりも車両前後方向に幅狭のスリットで構成され、側面視で少なくとも部分的に前記車体カバー(13)外に露出する第2開口(97)と、
前記第1開口(96)よりも車両前後方向に小さい間隔で配列される板状部材(102、103)で分割されて、側面視で少なくとも部分的に前記車体カバー(13)外に露出する第3開口(98)とを含む
ことを特徴とする鞍乗り型車両。 - 請求項1に記載の鞍乗り型車両において、前記第1開口(96)および前記第2開口(97)は、前記エンジン(26)に組み込まれるクランクシャフト(45)の回転軸線(Rx)を含む鉛直面(VP)よりも前側に配置され、前記第3開口(98)は、車両前後方向に前記第1開口(96)および前記第2開口(97)の後側に配置され、前記鉛直面(VP)よりも後側で前記ラジエーター(85)に向き合わせられることを特徴とする鞍乗り型車両。
- 請求項2に記載の鞍乗り型車両において、前記ラジエーターカバー(94)は、前記ラジエーター(85)に平行に広がって前記第1開口(96)および前記第2開口(97)を区画する板体(94a)を備えることを特徴とする鞍乗り型車両。
- 請求項3に記載の鞍乗り型車両において、前記ラジエーターカバー(94)は、後方に向かうにつれて車幅方向外側に張り出し、前記板状部材(102、103)を支持する枠体(94b)を備えることを特徴とする鞍乗り型車両。
- 請求項4に記載の鞍乗り型車両において、前記第1開口(96)および前記第2開口(97)のうち少なくともいずれかに向き合う位置で前記車体カバー(13)の内面から突出する突片(104)を備えることを特徴とする鞍乗り型車両。
- 請求項1~5のいずれか1項に記載の鞍乗り型車両において、前記車体カバー(13)は、前記第1開口(96)を覆って、前記車体カバー(13)から外側に突出するタンデムステップ(24b)の根元から上方に広がる覆い部(105)を備えることを特徴とする鞍乗り型車両。
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CN107531302B (zh) * | 2015-04-24 | 2019-11-19 | 本田技研工业株式会社 | 鞍乘式车辆的护罩结构 |
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JP2000337146A (ja) * | 1999-05-31 | 2000-12-05 | Honda Motor Co Ltd | カバーのルーバーおよびカバー成形用金型装置 |
JP2009090914A (ja) * | 2007-10-11 | 2009-04-30 | Yamaha Motor Co Ltd | 自動二輪車 |
JP2009132355A (ja) * | 2007-10-30 | 2009-06-18 | Yamaha Motor Co Ltd | 鞍乗型車両のラジエータカバーおよびそれを備えた鞍乗型車両 |
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