WO2019059257A1

WO2019059257A1 - Saddle-riding type vehicle

Info

Publication number: WO2019059257A1
Application number: PCT/JP2018/034748
Authority: WO
Inventors: 信之下村; 嘉信尾崎; 政男秋枝; 吉田　昌弘; 智樹西島; 晋横山; 進吾荒井; 加藤　達朗
Original assignee: 本田技研工業株式会社
Priority date: 2017-09-21
Filing date: 2018-09-20
Publication date: 2019-03-28
Also published as: JP6948399B2; DE112018005365T5; JPWO2019059257A1

Abstract

This saddle-riding type vehicle (11) is provided with: an engine (28) suspended from a vehicle frame (12); a radiator (55) disposed in front of the engine (28) to cool cooling water of the engine (28); an air cleaner (57) disposed above the engine (28); and an intake duct (58) extending forward from a lower wall of the air cleaner (57) and open above the engine (28) and the radiator (55). Thus, an intake duct which is open toward the front of the vehicle and can reduce pressure loss is provided.

Description

Saddle-ride type vehicle

The present invention relates to motorcycles and other straddle-type vehicles.

Patent Document 1 discloses a motorcycle. The motorcycle is provided with an air cleaner which is combined with the fuel tank from below. An intake duct is connected to the front of the air cleaner (air box). The intake duct extends forward past the radiator and opens in front of the front cowl.

Japanese Patent Laid-Open No. 2002-284074

The intake duct opens at the front of the front cowl, so it can suck in the temperature of the air without sucking in the high temperature air heated by the heat of the engine and the heat exchange of the radiator. On the other hand, since the intake duct extends to the front of the front fork, the duct length is large, and it is necessary to avoid interference with other parts by curving in some places, the pressure loss is large, and the traveling wind is efficiently used as an air cleaner. It can not flow.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an air intake duct which is open toward the front of a vehicle and can reduce pressure loss.

According to a first aspect of the present invention, an engine suspended on a vehicle body frame, a radiator disposed in front of the engine for cooling the engine coolant and an air cleaner disposed above the engine There is provided a saddle-ride type vehicle comprising a suction duct extending forward from a lower wall of the air cleaner and opening above the engine and the radiator.

According to a second aspect, in addition to the configuration of the first side, the air cleaner is disposed between a pair of left and right main frames extending downward from the head pipe of the vehicle body frame, and the intake duct is the main Pointing forward through the lower part of the frame.

According to a third aspect, in addition to the configuration of the second side, the intake duct points upward towards the open end.

According to the fourth aspect, in addition to the configuration of any one of the first to third side surfaces, the intake ducts are respectively disposed on both sides in the width direction of the air cleaner.

According to a fifth aspect, in addition to the configuration of any of the first to fourth side surfaces, the intake duct passes between a harness and the engine.

According to a sixth aspect, in addition to the configuration of the fifth side, the harness is supported by the intake duct.

According to the seventh aspect, in addition to the configuration of the second side, the open end of the intake duct is positioned outside the front fork of the vehicle body frame and inside the outer end of the engine in plan view of the vehicle Do.

According to an eighth aspect, in addition to the configuration of the second or seventh side, the open end of the intake duct is an outer end in a width direction which is located inside the width of the radiator in a plan view of the vehicle; And an open end of the intake duct is located between a front end of the engine and the upper end of the radiator in a plan view of the vehicle.

According to the ninth aspect, in addition to the configuration of the first or second side surface, the saddle-ride type vehicle is disposed in front of the open end of the intake duct to stop the path of the traveling wind toward the open end. It is further equipped with a water wall.

According to a tenth aspect, in addition to the configuration of the ninth side, the saddle-ride type vehicle accommodates the water blocking wall, and the open end of the intake duct faces the water blocking wall, and the front of the water blocking wall And a shroud having an inlet for the traveling wind.

According to the eleventh aspect, in addition to the configuration of the tenth side surface, the shroud is formed with a drain hole for draining water in the shroud.

According to a twelfth aspect, in addition to the configuration of any one of the ninth to eleventh side surfaces, the water blocking wall is fixed to the open end of the duct.

According to the first aspect, while traveling, the traveling wind passes the radiator and flows backward along the engine. Since the intake duct opens above the engine and the radiator, it can suck the traveling air of the air temperature without sucking the high temperature air heated by the heat generation of the engine and the heat exchange of the radiator. Further, since the duct length is relatively short and the curvature of the intake duct is suppressed, the pressure loss is reduced and the traveling wind can efficiently flow into the air cleaner.

According to the second aspect, as described above, the air intake duct extends forward from the lower wall of the air cleaner, so that the air cleaner can be maximally spread in the lateral direction between the main frames. Since the air cleaner is surrounded by the main frame, it can be firmly fixed.

According to the third aspect, since the intake duct extends upward toward the opening at the front end, it is possible to reliably prevent the heat generation of the engine and the intake of high-temperature air heated by heat exchange of the radiator.

According to the fourth aspect, the intake ducts are disposed on the left and right sides, and the traveling air is sucked from the respective intake ducts, so that the intake efficiency is improved.

According to the fifth aspect, an intakeable space can be secured between the harness and the engine to improve intake efficiency.

According to the sixth aspect, the harness can be supported without providing a dedicated structure for supporting the harness above the engine.

According to the seventh aspect, since the open end of the intake duct is disposed outside the front fork, interference between the front fork and the intake duct is avoided even if the steering wheel is cut. In addition, since the open end of the intake duct is located more inward than the outer end of the engine, an increase in the vehicle width can be prevented.

According to the eighth aspect, it is possible to arrange the open end of the intake duct at a position where it is difficult to absorb exhaust heat of the radiator while avoiding enlargement of the vehicle width direction and the front-rear direction.

According to the ninth aspect, since the traveling wind directed to the opening end of the intake duct is blocked by the water blocking wall during traveling, the water contained in the traveling wind is blocked by the water blocking wall, and the intake duct is traveling even while traveling Ingress of water is prevented.

According to the tenth aspect, the traveling wind entering from the air inlet of the shroud collides with the water blocking wall, bypasses the water blocking wall, and flows into the air intake duct from the open end of the air intake duct. Water contained in the traveling wind travels along the water blocking wall and adheres to the rear wall of the shroud in accordance with the inertia force of the traveling wind. Water is thus separated from the traveling wind. Air flows into the air intake duct while preventing the ingress of moisture.

According to the eleventh aspect, water can be prevented from collecting in the shroud.

According to the twelfth aspect, the relative position between the open end of the intake duct and the water blocking wall can be accurately determined to reduce the assembly error.

FIG. 1 is a side view schematically showing an overview of a motorcycle according to an embodiment of the present invention. First Embodiment FIG. 2 is an enlarged side view of the engine unit. First Embodiment FIG. 3 is an enlarged plan view of the air cleaner unit. First Embodiment FIG. 4 is a front view of the motorcycle. First Embodiment FIG. 5 is an enlarged vertical sectional view of the air cleaner unit. First Embodiment FIG. 6 is an enlarged side view schematically showing a support member of the harness. First Embodiment FIG. 7 is a front view of a shroud forming a side cover. First Embodiment FIG. 8 is a vertical sectional view taken along line 8-8 of FIG. First Embodiment FIG. 9 is a side view of the shroud. First Embodiment FIG. 10 is a front view of the air intake duct schematically showing the configuration in the shroud with the water blocking wall removed. First Embodiment 11 is a horizontal sectional view taken along line 11-11 of FIG. First Embodiment FIG. 12 corresponds to FIG. 8 and is a vertical sectional view schematically showing the air flow in the shroud.

11 ... saddle-ride type vehicle (motorcycle)
12 Vehicle body frame 14 Head pipe 15 Main frame 21 Front fork 28 Engine 55 Radiator 57 Air cleaner 58 Air intake duct 58a Opening end 71 Harness 81 Air intake port 82 Shroud 88 Drain hole 89a Water blocking wall

Hereinafter, an embodiment of the present invention will be described with reference to the attached drawings. Here, the upper, lower, front, rear, left, and right of the vehicle body are defined based on the line of sight of the passenger on the motorcycle.

First embodiment

FIG. 1 schematically shows an overview of a saddle-ride type vehicle according to one embodiment, that is, a motorcycle. The motorcycle 11 includes a vehicle body frame 12 and a vehicle body cover 13 that partially covers the vehicle body frame 12. The body frame 12 includes a head pipe 14, a pair of left and right main frames 15 extending rearward and downward from the head pipe 14, and a pair of left and right down frames 16 extending downward from the head pipe 14 below the main frame 15. It has a pair of left and right pivot frames 17 coupled to the rear end of each main frame 15 and extending downward, and a pair of left and right seat frames 18 extending upward from the respective main frames 15.

A front fork 21 is supported by the head pipe 14 in a steerable manner. The front fork 21 supports a front wheel WF rotatably around an axle 22. A steering handle 23 is connected to the upper end of the front fork 21.

A swing arm 25 is connected to the vehicle body frame 12 at the rear of the vehicle so as to be swingable up and down around a pivot 24. A rear wheel WR is supported at the rear end of the swing arm 25 so as to be rotatable about an axle 26. An engine unit 27 is mounted on the vehicle body frame 12 between the front wheel WF and the rear wheel WR. The engine unit 27 includes an engine 28 that generates a driving force to be transmitted to the rear wheel WR.

The engine 28 is suspended on the vehicle body frame 12. The lower end of the main frame 15 is connected to the rear side of the engine 28, and the lower end of the down frame 16 is connected to the front side of the engine 28. A rigid structure is thus established in engine 28 in addition to mainframe 15 and down frame 16. The pivot 24 is supported by the pivot frame 17.

The body cover 13 is disposed between the main frames 15 behind the head pipe 14 with a side cover 29 that covers the front end of the main frame 15 and the upper end of the down frame 16 from both sides on the left and right sides of the head pipe 14. And a tank cover 31 for covering a fuel tank (not shown). An occupant seat 32 is mounted on the seat frame 18 behind the tank cover 31. The body cover 13 is molded of, for example, a resin material.

The engine 28 is held in a forwardly inclined position, which is inclined forward around the rotation axis 34 of the crankshaft 33 extending parallel to the axle 26. As shown in FIG. 2, the engine 28 is coupled to the crankcase 35 supporting the crankshaft 33 rotatably around the rotation axis 34 and the crankcase 35 so as to be movable along the cylinder axis C. Is coupled to the cylinder block 37 for housing the cylinder block 37, and is coupled to the cylinder head 39 defining the combustion chamber 38 between the piston 36 and the cylinder head 39 so as to be rotatable between the cylinder head 39 And a head cover 42 for holding the camshaft 41 therebetween. The cylinder head 39 defines an intake passage 43 and an exhaust passage 44 connected to the combustion chamber 38. An intake valve 45 is disposed in the intake passage 43. The intake valve 45 opens and closes the intake port in accordance with the rotation of the camshaft 41. An exhaust valve 46 is disposed in the exhaust passage 44. The exhaust valve 46 opens and closes the exhaust port in response to the rotation of the camshaft 41.

An intake device 47 is connected to the rear wall of the cylinder head 39. The intake system 47 includes a throttle unit 49 which realizes opening and closing of the intake path by the function of the throttle valve 48, a fuel injection system 51 incorporated in the throttle unit 49 and injecting fuel toward the intake path, and And an air cleaner unit 52 connected upstream to clean the air flowing into the intake passage. The intake passage of the throttle unit 49 is connected to the intake passage 43 of the cylinder head 39. The air-fuel mixture is introduced into the combustion chamber 38 by the action of the intake device 47.

An exhaust device 53 is connected to the front wall of the cylinder head 39. The exhaust device 53 is connected to the exhaust passage 44 of the cylinder head 39 and extends rearward through the lower part of the engine 28, and a muffler (not shown) connected to the downstream end of the exhaust pipe 54. Prepare. The gas after combustion is exhausted from the exhaust device 53 to the outside.

In front of the engine 28, a radiator 55 for cooling the cooling water of the engine 28 is disposed. The radiator 55 is connected to the engine 28 by a pipe 56. Cooling water circulates through the engine 28 and the radiator 55. The cooling water is warmed by the heat of the engine 28 and sent from the engine 28 to the radiator 55. In the radiator 55, the heat energy of the cooling water is exchanged with the ambient air. The cooling water cooled by the radiator 55 returns to the engine 28.

The air cleaner unit 52 is disposed above the engine 28 and extends forward from the lower wall of the air cleaner 57 and the air cleaner 57 housed inside the tank cover 31, and opens above the engine 28 and the radiator 55. And an air intake duct 58. The air cleaner 57 is disposed between a pair of left and right main frames 15 extending rearward and downward from the head pipe 14. The air cleaner 57 is combined with the front end of the fuel tank from below and covered with the tank cover 31.

The intake duct 58 is directed downward in the main frame 15 to the outside of the down frame 16 in the forward direction of the arrow OR. The intake duct 58 is directed upward toward the open end 58a and moves away from the head cover 42 of the engine 28 toward the front. The upper surface of the head cover 42 approaches the ground at the front end relative to the rear end, and the upper end of the radiator 55 is aligned with the level of the front end of the upper surface. The intake duct 58 is vertically curved at an intermediate position between the connection end 58 b connected to the intake 61 of the air cleaner 57 and the front open end 58 a.

As shown in FIG. 3, the intake ducts 58 are respectively disposed on both sides in the width direction of the air cleaner 57. The intake duct 58 is bent in the vertical direction at the same time as it is bent in the horizontal direction at an intermediate position between the connection end 58 b and the open end 58 a. The open end 58 a of the intake duct 58 is disposed outside the virtual vertical plane VV orthogonal to the axial center of the axle 26 and in contact with the front fork 21 along the head pipe 14 from the left and right sides. Moreover, the open end 58 a of the intake duct 58 is disposed inside the virtual vertical plane VL which is orthogonal to the axial center of the axle 26 and is in contact with the outer end of the cylinder head 39 from the left and right sides. As shown in FIG. 4, the open end 58 a of the intake duct 58 is disposed inside the virtual vertical plane VC orthogonal to the axial center of the axle 26 and in contact with the left and right outer ends of the radiator 55 from outside. Be done. The intake duct 58 is covered by a side cover 29. The side cover 29 defines a vent that faces the open end 58 a of the intake duct 58 from the front.

As shown in FIG. 5, the open end 58 a of the intake duct 58 has a lowermost end located above the virtual horizontal plane HP including the upper end of the radiator 55. The open end 58 a of the intake duct 58 is parallel to the axis of the axle 26 and includes a virtual vertical plane VE including the foremost end of the engine 28, and a virtual vertical parallel to the axis of the axle 26 and including the upper end of the radiator 55. It is located between the plane VR.

The air cleaner 57 comprises a cleaner body 65 defining a dirty chamber 62 communicating with the inlet 61 and a clean chamber 64 separated from the dirty chamber 62 by the cleaner element 63 and communicating with the intake passage of the throttle unit 49. The cleaner body 65 has a partition 66 which rises upward from the lower wall and supports the cleaner element 63 at its upper end. The partition 66 separates the dirty chamber 62 on the front side from the clean chamber 64 on the rear side. The cleaner element 63 extends on the extension of the air intake duct 58. Therefore, the air of the intake duct 58 reaches the cleaner element 63 directly from the inlet 61. The air introduced into the dirty chamber 62 passes through the cleaner element 63 efficiently.

A supply port 67 is defined in the lower wall of the cleaner body 65 behind the partition wall 66. An intake funnel 68 is attached to the supply port 67. The intake funnel 68 rises upward from the lower wall in the clean chamber 64. In the intake funnel 68, a passage 68a extending from the intake passage of the throttle unit 49 is defined. The air having passed through the cleaner element 63 is guided to the opening of the intake funnel 68 following the upper wall of the cleaner body 65 and flows straight from the passage 68 a into the intake passage of the throttle unit 49.

As shown in FIG. 6, the motorcycle 11 includes a harness 71 disposed along the inside of the main frame 15 and extending forward toward the head pipe 14. The intake duct 58 passes between the harness 71 and the head cover 42 of the engine 28. A support member 72 supporting the harness 71 is fixed to the intake duct 58. The support member 72 may be fixed by, for example, a band wound around the intake duct 58. The harness 71 is supported by the intake duct 58. The open end 58a of the intake duct 58 has a funnel shape.

Next, the operation of the present embodiment will be described. During traveling, the traveling wind passes the radiator 55 and flows rearward along the engine 28. The intake duct 58 opens above the engine 28 and the radiator 55, so that the traveling wind of the air temperature can be sucked without sucking the high temperature air heated by the heat of the engine 28 and the heat exchange of the radiator 55. Further, since the duct length is relatively short and the curvature of the intake duct 58 is suppressed, the pressure loss is reduced and the traveling wind can efficiently flow into the air cleaner 57. In particular, since the intake duct 58 is directed upward toward the open end 58a, the heat generation of the engine 28 and the intake of high temperature air heated by the heat exchange of the radiator 55 can be reliably prevented.

In the present embodiment, the air cleaner 57 is disposed between the pair of left and right main frames 15 extending rearward and downward from the head pipe 14. The intake duct 58 is directed forward through the lower part of the main frame 15. Since the air intake duct 58 extends forward from the lower wall of the air cleaner 57, the air cleaner 57 can extend to the left and right between the main frames 15 to the maximum extent. Since the air cleaner 57 is surrounded by the main frame 15, it can be firmly fixed.

The intake ducts 58 are respectively disposed on both sides in the width direction of the air cleaner 57. The intake ducts 58 are disposed on the left and right sides, and the traveling air is drawn from the respective intake ducts 58, so that the intake efficiency is improved.

The intake duct 58 passes between the harness 71 and the engine 28. An intakeable space can be secured between the harness 71 and the engine 28 to improve the intake efficiency.

The harness 71 is supported by the intake duct 58. The harness 71 can be supported without providing a dedicated structure for supporting the harness 71 above the engine 28.

As described above, the open end 58 a of the intake duct 58 is located outside the front fork 21 of the vehicle body frame 12 and inside the outer end of the engine 28 in a plan view of the vehicle. Thus, since the open end 58a of the intake duct 58 is disposed outside the front fork 21, interference between the front fork 21 and the intake duct 58 is avoided even if the steering handle 23 is cut. Moreover, since the open end 58a of the intake duct 58 is located more inward than the outer end of the engine 28, enlargement in the vehicle width direction can be prevented.

In addition, as described above, the open end 58a of the intake duct 58 has a widthwise outer end located inside the width of the radiator 55 in a vehicle plan view and a lowermost end located above the upper end of the radiator 55. The open end 58a of the intake duct 58 is located between the front end of the engine 28 and the upper end of the radiator 55 in a plan view of the vehicle. Thus, the open end 58a of the intake duct 58 can be disposed at a position where it is difficult to absorb the exhaust heat of the radiator 55 while avoiding enlargement of the vehicle width direction and the front-rear direction.

As shown in FIG. 7, in the side cover 29 of the motorcycle 11, a shroud 82 having an inlet 81 for traveling wind is formed in front of the open end 58 a of the intake duct 58. The intake port 81 is formed in a mesh. The shroud 82 is coupled to the front body 82a which defines the inlet 81 along a plane inclined rearward at a predetermined inclination angle as shown in FIG. 8 and to the front body 82a as shown in FIG. The vehicle includes a rear body 82b which is open to the side of the vehicle by a window hole 83 and defines a space extending rearward from the front body 82a, and a lid 82c which closes the window hole 83 of the rear body 82b from the vehicle side. The front body 82a, the rear body 82b and the lid 82c are airtightly connected to each other. The lid 82c is fastened to the rear body 82b with two screws 84.

As shown in FIG. 8, the rear body 82 b of the shroud 82 has a rear wall 86 that extends rearward of the open end 58 a of the intake duct 58. Connected to the rear wall 86 is a guiding wall 87 which extends forward from the rear wall 86 along the outer wall of the intake duct 58 and covers the intake duct 58 from above. As shown in FIG. 10, the guiding wall 87 descends toward the outside of the vehicle. A drain hole 88 is formed in the bottom plate of the rear body 82 b below the intake duct 58. Water in the shroud 82 is discharged from the drain hole 88 to the outside.

As shown in FIG. 8, a water blocking member 89 disposed in front of the open end 58 a of the intake duct 58 and blocking the path of the traveling wind toward the open end 58 a is accommodated in the space within the shroud 82. The water blocking member 89 extends along a plane inclined rearward at a predetermined inclination angle similarly to the intake port 81 between the open end 58 a of the intake duct 58 and the intake port 81 and faces the intake port 81. An upper plate 89b extending rearward from the upper end of the water blocking wall 89a continuously from the upper end of the water blocking wall 89a and facing the top plate of the shroud 82 to form a wind passage 91 with the top plate of the shroud 82; And a pair of left and right side plates 89c extending downward from both edges of the upper plate 89b along the side edges of the water blocking wall 89a, and continuously extending backward from the lower end of the water blocking wall 89a; And a bottom plate 89d connected to the lower end of 89c. The top plate 89b, the side plate 89c, and the bottom plate 89d form a surrounding wall surrounding a space 92 in contact with the back side of the water blocking wall 89a. The guiding wall 87 of the shroud 82 is disposed lower than the upper plate 89b, and a folded passage connecting the air passage 91 to a space 92 in contact with the back side of the water blocking wall 89a between the upper plate 89b and the guiding wall 87 93 are formed. The open end 58a of the air intake duct 58 opens into the space 92 in contact with the back side of the water blocking wall 89a below the guiding wall 87. The shroud 82 has the open end 58a of the intake duct 58 facing the water blocking wall 89a, and has an air inlet 81 in front of the water blocking wall 89a.

At the open end 58a of the intake duct 58, a small piece 94 is integrally formed which extends forward from the lower edge and is received by the bottom plate 89d of the water blocking member 89. The small piece 94 extends downward from the lower edge of the open end 58 a to secure an air gap between the open end 58 a and the bottom plate 89 d of the water blocking member 89. The pin 95 is inserted into the bottom plate 89 d and the small piece 94 from the outside of the bottom plate 89 d. The pin 95 is press-fitted to the bottom plate 89 d of the water blocking member 89 and the small piece 94 of the air intake duct 58 to fix the water blocking member 89 to the open end 58 a of the air intake duct 58.

As shown in FIG. 11, an open end 58a of the intake duct 58 is integrally formed with a hook 96 which extends forward from each side edge and engages with the side plate 89c of the water blocking member 89. The hooks 96 extend from the outer end of the small plate 96a toward the front end toward the front end, the small plate 96a extending in a direction away from each other along the plane including the open end 58a from the open end 58a of the intake duct 58. And a claw 96b connected to the rear end of the bevel 97 to form an engagement surface 98 extending parallel to the small plate 96a. The side plate 89c of the water blocking member 89 is integral with a support plate 101 which extends along a plane including the open end 58a of the intake duct 58 and forms an engagement hole 99 with the outer surface of the side plate 89c outside the side plate 89c. Is formed. The contact surface 98 of the claw piece 96 b is received on the front surface of the support plate 101. Since the front surface and the engagement surface 98 of the support plate 101 are orthogonal to the movable direction of the intake duct 58 with respect to the water blocking member 89, the detachment of the claw piece 96b from the engagement hole 99 is in accordance with the engagement of the support plate 101 and the engagement surface 98. It is prevented. When the slope 97 of the claw 96b comes into contact with the edge of the locking hole 99 when the claw 96b enters the locking hole 99, the claws 96b are displaced so as to approach each other according to the elastic deformation of the small plate 96a. Thus, the claw 96b can enter the lock hole 99. Therefore, when the claw pieces 96b come close to each other according to the action of the external force, the contact surface 98 of the claw piece 96b can be separated from the support plate 101, and the claw piece 96b can be separated from the engagement hole 99. Thus, the water blocking member 89 is fixed to the open end 58 a of the intake duct 58.

In the water blocking member 89, two bosses 102 protruding outward from the outer surface of the side plate 89c are integrally formed on the side plate 89c. The rear body 82 b of the shroud 82 is superimposed on the tip of the boss 102. A screw 103 is screwed into the boss 102 from the outside of the shroud 82 through the shroud 82. Thus, the water blocking member 89 and the shroud 82 are coupled to each other.

As shown in FIG. 12, while the motorcycle 11 is traveling, the traveling wind enters the shroud 82 from the intake port 81 of the shroud 82 and collides with the water stop wall 89 a. Since the traveling wind that enters from the intake port 81 and travels toward the opening end 58a of the intake duct 58 is blocked by the water blocking wall 89a, water contained in the traveling wind (for example, rain water or water jumping from the road surface) is blocked by the water blocking wall 89a. Water is prevented from entering the air intake duct 58 even while traveling.

The traveling wind that collides with the water blocking wall 89a flows along the water blocking wall 89a and flows into, for example, the wind passage 91 between the inner wall of the shroud 82 and the water blocking member 89, bypassing the upper plate 89b of the water blocking wall 89a. Then, it flows from the turnaround passage 93 into the space 92 in contact with the back side of the water blocking wall 89a. Water contained in the traveling wind adheres to the rear wall 86 of the shroud 82 along the water blocking wall 89a and the upper plate 89b in accordance with the inertial force of the traveling wind. Water is thus separated from the traveling wind. Air flows into the open end 58 a of the air intake duct 58 while preventing water from entering.

When part of the traveling wind collides with the rear wall 86 of the shroud 82, it is guided by the guiding wall 87, flows toward the bottom plate, and flows out of the drain hole 88 to the space outside the shroud 82. Water adhering to the rear wall 86 of the shroud 82 is taken in by the traveling wind and discharged from the drain hole 88 to the space outside the shroud 82. Thus, water can be prevented from collecting in the shroud 82.

A water blocking member 89 is fixed to the air intake duct 58 when assembling the shroud 82. Fixing of the water blocking member 89 may be performed prior to mounting of the air cleaner 57 on the vehicle body frame 12. The two locking claws 96 are pushed into the locking hole 99 from the tip of the claw piece 96b. Since the slopes 97 of the claws 96b contact the support plate 101 at the edges of the hooks 99, the claws 96b are displaced so as to approach each other as the claws 96b enter the hooks 99. When the claw 96b completely enters the engagement hole 99, the slope 97 is separated from the support plate 101, and the claw 96b returns to the original shape. As a result, the contact surface 98 of the claw piece 96 b overlaps the front surface of the support plate 101. Thus, the hooking claw 96 of the intake duct 58 is connected to the side plate 89 c of the water blocking member 89. The water blocking member 89 is fixed to the intake duct 58. At this time, the small piece 94 of the intake duct 58 is superimposed on the bottom plate 89 d of the water blocking member 89. When the pin 95 is inserted into the bottom plate 89 d of the water blocking member 89 and the small piece 94 of the intake duct 58 from the outside of the bottom plate 89 d, the fixing of the water blocking member 89 with respect to the intake duct 58 is reinforced. The relative position between the open end 58a of the intake duct 58 and the water blocking wall 89a can be accurately determined to reduce the assembly error.

Claims

An engine (28) suspended by the body frame (12);
A radiator (55) disposed in front of the engine (28) to cool the cooling water of the engine (28);
An air cleaner (57) disposed above the engine (28);
An intake duct (58) extending forward from the lower wall of the air cleaner (57) and opening above the engine (28) and the radiator (55);
A straddle-type vehicle comprising:
The saddle-ride type vehicle according to claim 1, wherein the air cleaner (57) is disposed between a pair of left and right main frames (15) extending rearward and downward from a head pipe (14) of the body frame (12). At least a part of the opening of the air cleaner (57) is overlapped by the main frame (15) in a side view of the vehicle, and the intake duct (58) is disposed below the main frame (15). A saddle-ride type vehicle characterized by pointing to the front of the street.
The saddle-ride type vehicle according to claim 2, wherein the intake duct (58) is directed upward toward the open end (58a).
The saddle-ride type vehicle according to any one of claims 1 to 3, wherein the intake duct (58) is disposed on both sides in the width direction of the air cleaner (57). vehicle.
The saddle-ride type vehicle according to any one of claims 1 to 4, wherein the intake duct (58) passes between a harness (71) and the engine (28). vehicle.
A saddle-ride type vehicle according to claim 5, characterized in that said harness (71) is supported by said air intake duct (58).
The saddle-ride type vehicle according to claim 2, wherein the open end (58a) of the intake duct (58) is outside the front fork (21) of the body frame (12) in a plan view of the vehicle. A saddle-ride type vehicle characterized by being located inside the outer end of (28).
The straddle-type vehicle according to claim 2 or 7, wherein the open end (58a) of the intake duct (58) is a widthwise outer end located inside the width of the radiator (55) in a plan view of the vehicle And a lower end located above the upper end of the radiator (55), and the open end (58a) of the intake duct (58) is the foremost end of the engine (28) in a plan view of the vehicle A saddle-ride type vehicle, characterized in that it is located between the upper end of the radiator (55) and the upper end of the radiator (55).
The saddle-sliding type vehicle according to claim 1 or 2, wherein a water blocking wall is disposed in front of the open end (58a) of the intake duct (58) and blocks a path of a traveling wind toward the open end (58a). A saddle-ride type vehicle further comprising (89a).
10. The saddle-ride type vehicle according to claim 9, wherein the water blocking wall (89a) is accommodated and the open end (58a) of the intake duct (58) faces the water blocking wall (89a), the water blocking wall A saddle-ride type vehicle further comprising a shroud (82) having an inlet (81) for the traveling wind in front of (89a).
The saddle-ride type vehicle according to claim 10, wherein the shroud (82) is formed with a drain hole (88) for discharging water in the shroud (82).
A saddle-ride type vehicle according to any one of claims 9 to 11, wherein the water blocking wall (89a) is fixed to the open end (58a) of the duct (58). vehicle.