JP2015058922A - Saddle-riding type vehicle with shroud - Google Patents

Abstract

PROBLEM TO BE SOLVED: To guide travel air WD to a knee grip by a shroud 26.SOLUTION: A fuel tank 22 is disposed above a power unit 12, and a shroud 26 is so provided as to cover each front lateral part of the fuel tank 22 and the power unit 12. The shroud 26 is configured from two members comprising an outer shroud 27 and an inner shroud 28, and is equipped with the outer shroud 27 which covers the front of a knee grip part 25. A vent hole which is directed to the knee grip part 25 is provided between the outer shroud 27 and the inner shroud 28, and by the vent hole, a part of travel air WD is passed through the outer shroud 27 as a route W3 and is guided to the knee grip part 25.

Description

The present invention relates to a vehicle in which traveling wind is efficiently guided to a knee grip portion using a shroud.

In some cases, a shroud is provided on the side of the fuel tank, and the shroud is provided with a vent on the surface of the shroud through which the running wind flows toward the fuel tank in order to guide the running wind toward the engine and the side of the fuel tank.

JP 2010-215053 A

In a saddle-ride type vehicle such as a motorcycle, knee grip traveling is performed in which the side of a fuel tank is sandwiched between both knees. In this knee grip running, the knee is brought into close contact with the vehicle body side, and therefore the temperature becomes high, so that the knee grip portion may be desired to be cooled.
For this purpose, it is conceivable to use the shroud to flow the traveling wind to the knee grip portion as in the conventional example. However, since the knee to be knee-gripped is accommodated in the knee grip portion formed as a recess, it is difficult to hit the knee even if such running wind is guided. In addition, if a large amount of traveling wind is taken in unnecessarily, the traveling resistance increases. Therefore, it is desired to efficiently guide as much traveling wind as possible to the knee grip portion without increasing the traveling resistance.
In the above conventional example, an opening penetrating the front and back of the shroud is provided in the air guide passage. However, simply providing an opening in the air guide passage only sucks out hot air etc. It does not help increase cooling air to the grip.
In view of this, an object of the present application is to use a shroud so as to efficiently guide a large amount of traveling wind to the knee grip portion while suppressing traveling resistance.

In order to solve the above-mentioned problems, the invention described in claim 1 includes a seat (24) on which a driver sits, a knee grip portion (25) that is positioned in front of the driver and is sandwiched between both knees, and the knee grip. In a saddle-ride type vehicle provided with a shroud (26) that is provided in front of the section, extends forward and downward, takes in the traveling wind, and guides and cools at least part of the traveling wind to the driver.
The shroud (26) is provided with vent holes (72, 89) on the side of the vehicle for guiding a part of the taken running wind from the inside of the shroud (26) to both knees of the driver. A guide groove (84) for guiding the running wind outside the shroud is provided on the outer surface toward the vent.

According to a second aspect of the present invention, in the first aspect, the shroud (26) extends outside the front fork to a position where the tip (26a) overlaps the front fork (14) supporting the front wheel in a side view. Further, the width of the vehicle width direction is further narrowed downward from the tip, extending to a position overlapping with the power unit (12) disposed below the knee grip portion in a side view, and the guide groove (84) is formed on the shroud (26). It is characterized by extending backward from the tip (26a) toward the vent (72/89) in the horizontal direction when viewed from the side.

According to a third aspect of the present invention, in the first or second aspect, the shroud (26) includes a ridge line (80) adapted to the shape of both knees of the driver, and the vent hole (89) has the ridge line ( It is provided on the surface (82) behind 80).

According to a fourth aspect of the present invention, in any one of the first to third aspects, the shroud (26) is composed of two parts, an upper member (27) and a lower member (28) that are vertically aligned. The guide groove (84) is provided in the mating portion.

According to a fifth aspect of the present invention, in the fourth aspect, the shroud (26) extends from the lower member (28) to the inner side of the upper member (27), and a part of the taken traveling wind is taken. A guide shape portion (70) for guiding the driver toward the upper body is configured.

The invention described in claim 6 is provided with a side cover (30) that covers a side portion that the driver below the seat (24) straddles with both legs in any one of the above-described claims 1 to 5,
The lower member (28) of the shroud includes a rear extension (90) extending along a lower end of the knee grip portion (25) and connected to the side cover (30). .

According to the first aspect of the present invention, since the traveling wind that is guided to the guide groove and flows outside the vent hole flows toward the vent hole of the shroud, the air in the vent hole is sucked out from the inside of the shroud by this flow. Therefore, it is possible to efficiently cool the knee grip portion by increasing the amount of air flowing from the vent to the driver's knee located outside the shroud while suppressing an increase in running resistance.

According to the invention of claim 2, the guide groove of the shroud extends rearward in the horizontal direction from the tip of the shroud toward the vent, and extends from the outside of the front fork downward while narrowing the width in the vehicle width direction. Therefore, the traveling wind from the front of the shroud can be guided toward the power unit, and the power unit can be cooled simultaneously with the cooling of the knee grip portion.

According to the invention of claim 3, since the vent is provided on the surface facing the driver's knee, the air can be guided more efficiently toward the knee.

According to the invention of claim 4, since the shroud is composed of two parts, that is, the upper member and the lower member, and the guide groove is formed by the mating portion thereof, the groove-shaped portion can be easily formed.

According to the invention of claim 5, a part of the lower member is extended to the inside of the upper member, and a part of the taken traveling wind is guided to the upper body direction of the driver. A part of the wind is sent to improve the comfort of the driver, and at the same time, the balance between the air volume taken in and the air volume to the power unit can be adjusted by the guide shape portion.

According to the invention of claim 6, the lower member of the shroud is provided with the rearward extending portion that extends along the lower end of the knee grip portion and is connected to the side cover, so that after the power unit is cooled by being taken into the shroud Since the hot air flows to the side cover along the rearward extending portion, it is possible to prevent the hot air from flowing toward the driver as it is.

Left side view of saddle riding type vehicle according to the present invention Left side view of the main part of the body frame Front view of saddle riding type vehicle according to the present invention Front plan view of saddle-ride type vehicle according to the present invention Front side view of saddle-ride type vehicle according to the present invention The main part side view of the state which removed the outer shroud in FIG. Sectional view along line 7-7 in FIG. The figure which expands a part of FIG. 3, and shows an effect | action

Hereinafter, an embodiment in which the present invention is applied to a motorcycle that is an example of a saddle-ride type vehicle will be described with reference to the drawings. It should be noted that the front / rear, left / right, and upper / lower directions in the present application are directions in the vehicle to which the present application is applied.
As shown in FIG. 1, in this motorcycle, a power unit 12 is supported on a body frame 10, and a front fork 14 is rotatably supported on a head pipe 13 provided at a front end portion thereof. A front wheel 16 is supported at the lower end of the front fork 14 and is steered by a handle 18. A headlight 20 is supported in front of the head pipe 13.

A fuel tank 22 is supported on the vehicle body frame 10 above the power unit 12, and a seat 24 is supported on a seat rail (described later) behind the fuel tank 22.
The front left and right of the fuel tank 22 are covered with a shroud 26.
The shroud 26 is provided with an outer shroud 27 inclined obliquely forward and downward from the side of the fuel tank 22 toward the front fork 14, and below the outer shroud 27 from the front fork 14 to the front lower portion of the fuel tank 22. And an inner shroud 28 that covers the upper portion of the power unit 12 and extends rearward.
A part of the inner shroud 28 forms a downward extending portion 29 extending from the vicinity of the front fork 14 to the upper side of the cylinder head 15 of the power unit 12 obliquely downward and rearward.

Below the fuel tank 22 and the seat 24 are covered with a side cover 30. The front end portion of the side cover 30 is connected to the rear end portion of the inner shroud 28 and covers the rear of the power unit 12. The rear end portion of the side cover 30 is connected to the front end portion of the rear cowl 32. The rear cowl 32 extends rearward from the rear end portion of the seat 24. Reference numeral 34 denotes a rear grip, and 36 denotes a rear fender.

A front end portion of the rear swing arm 40 is swingably supported on a pivot 38 provided at the rear portion of the vehicle body frame 10. The rear wheel 42 supported on the rear end of the rear swing arm 40 is driven by the power unit 12 via the chain 43.
A side stand 44 is rotatably supported at the lower rear end of the vehicle body frame 10 in the vicinity of the pivot 38 so as to rotate to a storage position and a standing position (shown state).

The cylinder head 15 of the power unit 12 sucks air from the rear air cleaner 46 and exhausts it from an exhaust pipe 48 extending forward. The exhaust pipe 48 goes around to the right side of the vehicle body and is connected to a muffler 49 disposed on the upper right side of the rear wheel 42.

The rider LD seated on the seat 24 knee-grips by sandwiching the side surface of the fuel tank 22 with both knees N. The rear side of the side surface of the fuel tank 22 forms a narrow-shaped knee grip portion 25 so that the knee grip can be easily performed. In this example, since the knee grip portion 25 is provided on the side surface of the fuel tank 22, the fuel tank 22 also serves as a knee grip component. However, the fuel tank 22 is not necessarily a knee grip component, and a dedicated knee grip component formed separately from the side of the fuel tank 22 may be provided, for example.

The rider LD puts the foot F on the step 45 provided below the power unit 12 of the lower frame 56, and bends the leg portion LG at the knee N to pass the side of the power unit 12. The knee N is configured to follow a substantially V-shaped portion that protrudes forward and is formed at the rear portion of the shroud 26.

FIG. 2 is a view mainly showing the vehicle body frame 10. The vehicle body frame 10 extends from the head pipe 13 along the center of the vehicle body to the main frame 50 that extends obliquely downward and rearward from the power unit 12 and from the head pipe 13 to the rear and obliquely descends the front of the power unit 12. A pair of left and right down frames 52, a pair of left and right pivot frames 54 extending in the vertical direction from the rear end of the main frame 50, and the lower ends of the down frame 52 and the pivot frame 54 are connected to each other. And a pair of left and right lower frames 56 extending downward in the front-rear direction.

A cushion bracket 58 protruding rearward is welded to the rear end portion of the main frame 50. The cushion bracket 58 protrudes rearward from the main frame 50, and a cushion unit 60 constituting a rear suspension is supported between a rear end portion and a middle portion in the front-rear direction of the rear swing arm 40. Front end portions of the seat rail 62 are attached to the left and right sides of the cushion bracket 58.
A pair of left and right seat rails 62 are provided, extend obliquely rearward and support the seat 24. A pair of left and right rear stays 64 are obliquely connected between the rear end portion of the seat rail 62 and the vicinity of the pivot 38 at the lower portion of the pivot frame 54.

Hereinafter, the shroud 26 will be described in detail.
As shown in FIGS. 3 and 4, the shroud 26 is provided on the left and right sides of the fuel tank 22 symmetrically with respect to the vehicle body center CT so as to expand outward and to the left and right so as to capture the traveling wind WD. It has become. The external appearance of the shroud 26 shown in FIG. 4 in plan view is that of the outer shroud 27, and both the front side and the rear side are curved outward.

As shown in FIG. 3, the inner side of the outer shroud 27 forms an inner upper portion 70 that is a part of the inner shroud 28, and an inner side opening 72 is formed therein. The inner side opening 72 penetrates in the front-rear direction so that the traveling wind WD taken in on the front surface of the inner upper portion 70 flows backward.

The outer shroud 27 and the inner upper part 70 are overlapped on the inside and outside, and project outwardly to the side of the headlight 20 so that the traveling wind WD can be easily taken into the inner upper part 70.
Further, the downwardly extending portion 29 of the inner shroud 28 also has an outward opening shape toward the front, and the width gradually decreases toward the vehicle body center CT as it goes downward.

As shown in FIG. 5, the outer shroud 27 is an appearance member having a substantially rhombus shape when viewed from the side, and includes a ridge line 80 that curves obliquely forward and downward. It forms a regular slope that inclines, the lower part forms a lower part 82, and forms a reverse slope that inclines downward toward the center of the vehicle body. The ridgeline 80 forms a three-dimensional shape, and the inside is a space.

The outer shroud 27 is disposed in front of the knee grip portion 25. The upper portion 81 rectifies the traveling wind WD and guides it from the upper portion of the knee grip portion 25 to the upper half of the driver LD seated rearward as in the path W1.

The front lower end 83 of the outer shroud 27 overlaps the boundary portion 71 (FIG. 6) between the downwardly extending portion 29 and the inner upper portion 70, and forms a central concave groove 84 that extends in a groove shape in the front-rear direction. The central concave groove 84 is a valley-shaped concave portion formed between the lower portion 82 and the downward extending portion 29, corresponds to the guide groove of the present application, and is formed obliquely upward toward the rear knee grip portion 25, The traveling wind WD is guided to the knee grip portion 25 as indicated by a route W2.

The lower portion 82 is attached to the inner upper portion 70 by bosses 85a and 85b formed inside in the vicinity of the front lower end 83. Further, in the upper portion 81, a locking portion 86 provided at the rear end portion engages with a locking projection 22 a (FIG. 6) provided on the side surface of the fuel tank 22.
Further, a locking portion 87 is also provided on the upper edge portion 81a of the upper portion 81, and engages with the upper edge portion 73 (FIG. 6) of the inner upper portion 70.

In addition, the lower end edge 88 of the middle part behind the front lower end 83 among the lower ends of the lower part 82 is not in close contact with the side surface of the fuel tank 22 and has a gap. For this reason, as shown in FIG. 7, the lower end edge 88 of the intermediate part forms an outer side opening 89 that opens rearward between the surface of the fuel tank 22. The inner side opening 72 partially overlaps with the outer side opening 89 in the front-rear direction, so that the traveling wind WD entering from the inner side opening 72 can escape backward from the outer side opening 89.

Therefore, the inner side opening 72 and the outer side opening 89 constitute a vent formed in the shroud 26, and the inner side opening 72 is an inlet and the outer side opening 89 is an outlet. The outer opening 89 is formed at a position close to the knee grip portion 25 behind the inner upper portion 70 and the ridgeline 80.

As shown in FIG. 6, the inner upper portion 70 is of a size that can be covered with the substantially front half of the outer shroud 27 and has a substantially triangular shape.
Bosses 75a and 75b are provided in the front and rear at the lower end in the vicinity of the boundary portion 71 so as to overlap the bosses 85a and 85b of the outer shroud 27.

A boss 76 is provided on the top of the inner upper portion 70, and is attached to a protrusion 22b formed on the side surface of the fuel tank 22 in front of the locking protrusion 22a by screwing or the like. The inner upper portion 70 is not a three-dimensional shape in which the ridge line 80 bulges outward like the outer shroud 27, but has a relatively flat plate shape.
For this reason, a ventilation gap is formed between the rear end edge 78 of the inner upper portion 70 and the inner surface of the outer shroud 27.

The rear portion of the outer shroud 27 has a gap formed between the lower end of the lower portion 82 and the lower end edge 88 of the middle portion behind the front lower end 83 and the side surface of the fuel tank 22. At the same time, since the outer side opening 89 is opened rearward, the traveling wind WD passing through the inner side opening 72 flows through the outer side opening 89 to the rear knee grip portion 25 through the path W3. A rear end portion of the central groove 84 is formed in the vicinity of the outer side opening 89.

The downward extending portion 29 is inclined so that the left and right widths are narrowed downward, and the width in a side view is changed so that the lower side gradually becomes narrower, and the lower end thereof is the front side of the cylinder head 15. To the direction.
The inner shroud 28 has a rearward extension 90 that extends rearward from the downward extension 29.

The front part of the rear extension part 90 includes a horizontal part 94 extending rearward substantially horizontally above the cylinder head 15 continuously to the lower protrusion 93 which is the lower rear part of the lower extension part 29. The downward protruding portion 93 protrudes downward from the horizontal portion 94 to the side of the cylinder head 15.

The upper end edge 94a of the horizontal portion 94 is flush with the lower end of the knee grip portion 25 to make rider LD comfortable.
The rear edge 94b of the horizontal portion 94 is connected flush with the front end of the side cover 30. Further, the upper edges 30 a and 30 b of the side cover 30 are connected flush with the lower end of the knee grip portion 25 and the lower end of the seat 24.

The downward extending portion 29 expands forward, thereby causing the traveling wind WD to flow obliquely downward and rearward along the path W5 and guide it to the cylinder head 15 to improve the cooling efficiency of the cylinder head 15. The downward extending portion 29 is coupled to the down frame 52 by screws or the like with a boss 29a projecting inward.
The rear end portion of the horizontal portion 94 is also attached to the main frame 50 and is coupled to the front end portion of the side cover 30.

As shown in FIG. 7, the upper end edge 94 a of the horizontal portion 94 is connected to the knee grip portion 25, but a gap is formed between the front end portion and the lower side surface of the front end portion of the fuel tank 22. Is the central opening 92 (see FIG. 8). A central groove 84 is located between the central opening 92 and the outer opening 89.
Therefore, the traveling wind WD collected by the inner upper portion 70 can flow from the outer side opening 89 to the knee grip portion 25 behind the shroud 26 as a route W3 and from the center opening 92 to the route W4.

Next, the operation of this embodiment will be described.
As shown in FIGS. 4 and 8, the wind wind WD collected in the inner upper portion 70 passes through the inner side opening 72 and flows to the knee grip portion 25 behind the shroud 26 along the path W3. The N portion is cooled (FIG. 5).
Since the knee grip has both knees N in close contact with the knee grip portion 25 and is easily steamed, this cooling air can improve the comfort of the rider LD.

Further, the traveling wind WD is guided in the direction of the knee grip portion 25 by the path W2 through the central groove 84 formed on the outer side of the middle portion of the shroud 26 in the vertical direction. In addition, this flow becomes strong because there is no resistance by narrowing the passage like the inner side opening 72.
Therefore, the traveling wind WD that has passed through the central concave groove 84 has a negative pressure in the vicinity of the outer opening 89, and thus the traveling wind WD inside the inner upper portion 70 is easily sucked out.

For this reason, the flow of the route W3 can be strengthened by the travel wind of the route W2, and the accumulation of the travel wind WD to the inside of the inner upper portion 70 can be reduced. This also makes it possible to reduce running resistance.
In addition, the traveling wind of the path W4 flowing out from the central opening 92 also has a suction effect by the traveling wind of the path W2 similarly to the path W3 due to the rear end portion of the central concave groove 84 being located in the vicinity. The cooling air toward the knee grip portion 25 located outside from the inside can be increased.

Further, as is apparent from FIG. 5, the shroud 26 extends from a tip 26a that overlaps the front fork 14 to a position that overlaps the cylinder 15 of the power unit 12 in a side view, and has a width in the vehicle width direction downward from the outside of the front fork 14. A downwardly extending portion 29 and its vicinity are provided as a portion extending while narrowing, and further, the central concave groove 84 is horizontally viewed from the tip 26a of the shroud 26 toward the vent hole (inner side opening 72 and outer side opening 89). The traveling wind WD from the front of the shroud 26 can be guided toward the cylinder 15 of the power unit 12, and the cylinder 15 of the power unit 12 can be cooled simultaneously with the cooling of the knee grip portion 25. it can.

Further, since the downward extending portion 29 is provided and inclined toward the cylinder head 15, the traveling wind WD can be guided toward the cylinder head 15 along the path W 5 by the downward extending portion 29, thereby cooling the power unit 12. Efficiency can be increased.

Further, the outer shroud 27 is provided in accordance with both knees N of the rider LD, and the outer side opening 89 is formed at the lower end edge 88 of the middle part of the lower part 82 which is the surface facing both knees N behind the ridgeline 80. The traveling wind WD can be efficiently flowed toward both knees N.

In addition, the shroud 26 is composed of the outer shroud 27 and the inner shroud 28, and the central concave groove 84 is formed by the boundary portion 71 and the front lower end 83 which are the joint portions of the outer shroud 27 and the inner shroud 28. Is easy to form.

Further, the inner upper portion 70 of the inner shroud 28 is provided on the inner side of the outer shroud 27 and a part of the traveling wind WD taken inside the inner upper portion 70 flows from the inner upper portion 70 along the upper portion 81 of the outer shroud 27. Since the guide is directed toward the upper body of the rider LD, the comfort of the rider LD can be improved, and at the same time, the balance with the air volume guided to the power unit 12 side can be adjusted. The inner upper part 70 has a guide part structure for the path W1.
For example, if the amount of air taken into the inner upper portion 70 becomes too large, it may cause running resistance or reduce the feeling of grounding during high-speed running, but this can be avoided.

Further, since the side cover 30 covers the portion of the rider LD under the seat 24 across the surface and the horizontal portion 94 is provided continuously to the side cover 30, the warm exhaust air that has cooled the power unit 12 is directly directed to the rider LD side. It is possible to maintain comfort by preventing the flow.

22: Fuel tank, 24: Seat, 25: Knee grip part, 26: Shroud, 27: Outer shroud, 28: Inner shroud, 29: Downward extension part, 70: Inner upper part, 72: Inner side opening, 81: Upper part , 82: lower part, 83: front lower end, 89: outer side opening, 90: rear extension part

Claims (6)

A seat (24) on which the driver sits, a knee grip portion (25) that is sandwiched between the knees in front of the driver, and a knee wind portion that is provided in front of the knee grip portion and extends forward and downward. In a saddle-ride type vehicle equipped with a shroud (26) that takes in and cools at least a part of the driving wind to the driver,
The shroud (26) is provided with vent holes (72, 89) on the side of the vehicle for guiding a part of the taken running wind from the inside of the shroud (26) to both knees of the driver. A saddle-ride type vehicle characterized in that a guide groove (84) is provided on the outer surface of the shroud so as to guide the running wind outside the shroud toward the vent. The shroud (26) extends to the outside of the front fork to a position where the tip (26a) overlaps with the front fork (14) supporting the front wheel in a side view, and further, the side of the shroud (26) is narrowed in the vehicle width direction downward from the tip. The guide groove (84) extends from the tip (26a) of the shroud (26) toward the vent (72/89), extending to a position overlapping the power unit (12) disposed below the knee grip portion. The saddle riding type vehicle according to claim 1, wherein the saddle riding type vehicle extends rearward in a horizontal direction as viewed from the side. The shroud (26) includes a ridge line (80) adapted to the knee shape of the driver, and the vent (89) is provided on a surface (82) behind the ridge line (80). The saddle riding type vehicle according to claim 1 or 2, characterized in that The shroud (26) is composed of two parts, that is, an upper member (27) and a lower member (28) that are aligned vertically, and the guide groove (84) is provided at the mating portion. The saddle riding type vehicle according to any one of Items 1 to 3. The shroud (26) has a guide-shaped portion (70) that extends inward of the upper member (27) on the lower member (28) and guides a part of the taken traveling wind toward the upper body of the driver. The saddle riding type vehicle according to claim 4, wherein the saddle riding type vehicle is configured. The driver below the seat (24) includes a side cover (30) that covers a side portion that is straddled by both legs,
The lower member (28) of the shroud includes a rear extension (90) extending along a lower end of the knee grip portion (25) and connected to the side cover (30). The saddle riding type vehicle according to any one of claims 1 to 5.

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