JP2009214722A - Screen device of motorcycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen device of a motorcycle for restraining a part between a wind screen and a rider from having negative pressure by adjusting a travel wind flowing between the wind screen and an upper surface of a cowling. <P>SOLUTION: The screen device has the wind screen 51 in an upper part of an upper cowling 41 for covering a front upper part of a vehicle body. The wind screen 51 is vertically movably supported, and a sub-upper cowling 47 oppositely arranged under the wind screen 51 and forming the upper surface of the cowling is raised up accompanied by the upward movement of the wind screen 51 to adjust an air volume and the wind direction of the travel wind flowing between the wind screen 51 and the sub-upper cowling 47. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a screen device for a motorcycle that supports a wind screen so as to be movable up and down.

In general, a motorcycle is known in which a wind screen is supported on a cowling covering a front upper part of a vehicle body so as to be movable up and down. In this type, since the vertical position of the wind screen can be adjusted according to the user's physique or according to the user's preference, for example, the wind screen is moved upward during high-speed driving to the driver. Can be adjusted so that the driver feels the wind pressure moderately by moving the windscreen downward at medium and low speeds (for example, Patent Document 1). reference).
JP 2003-81160 A

  However, in the conventional configuration, when the wind screen is moved largely upward, a gap between the lower end of the wind screen and the upper surface portion of the cowling is greatly opened, and there is a risk that the amount of traveling wind flowing through the gap increases. there were. In addition, most of the traveling wind flowing through the gap flows along the upper surface of the cowling and does not sufficiently flow on the rear surface of the windscreen, so that the space between the windscreen and the driver may become negative pressure. there were. In this case, the driving wind is caught behind the wind screen, and the ride comfort of the driver is deteriorated.

  The present invention has been made in view of the above-described circumstances, and adjusts the traveling wind flowing between the wind screen and the upper surface portion of the cowling to suppress negative pressure between the wind screen and the driver. An object is to provide a screen device for a motorcycle.

In order to solve the above-mentioned problems, the present invention provides a screen device for a motorcycle that includes a wind screen on an upper portion of a cowling that covers a front upper portion of a vehicle body, and that supports the wind screen so as to be movable up and down. The upper surface portion of the cowling arranged opposite to the upper surface portion of the cowling moves upward as the wind screen moves upward, and the running wind flowing between the wind screen and the upper surface portion of the cowling is adjusted. To do.
According to this configuration, the upper surface portion of the cowling moves upward as the wind screen rises, and the traveling wind flowing between the wind screen and the upper surface portion is adjusted by the moved upper surface portion. Can be sufficiently flown behind the windscreen, and the space between the windscreen and the driver can be prevented from becoming negative pressure, so that the ride comfort of the driver can be improved.

  In this configuration, a recess may be provided on the upper surface of the cowling, and a sub cowling that moves upward together with the windscreen and forms the upper surface of the cowling may be disposed in the recess. According to this configuration, the sub cowling, which is disposed in the recess and forms the upper surface portion of the cowling, moves upward together with the wind screen, so that the upper surface portion of the cowling moves upward as the wind screen moves upward. The structure to move to can be simplified.

According to the present invention, the upper surface portion of the cowling moves upward as the wind screen rises, and the traveling wind flowing between the wind screen and the upper surface portion is adjusted by the moved upper surface portion. Can be sufficiently flown behind the windscreen, and the space between the windscreen and the driver can be prevented from becoming negative pressure, so that the ride comfort of the driver can be improved.
Further, since the sub cowling which is disposed in the recess and forms the upper surface portion of the cowling moves upward together with the wind screen, the upper surface portion of the cowling is moved upward as the wind screen moves upward. Can be simplified.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the description, descriptions of directions such as front and rear, left and right, and top and bottom follow the directions as viewed from the driver who drives the vehicle body.
FIG. 1 is a side view of a motorcycle according to an embodiment of the present invention.
The motorcycle 10 includes a body frame 11, a pair of left and right front forks 13 rotatably supported by a head pipe 12 attached to a front end portion of the body frame 11, and a top bridge that supports an upper end portion of the front fork 13. A steering wheel 15 attached to the front fork 13, a front wheel 16 rotatably supported by the front fork 13, an engine 17 supported by the vehicle body frame 11, and an exhaust muffler connected to the engine 17 via an exhaust pipe 18. 19, a rear swing arm 21 supported by a pivot 20 at the lower rear portion of the vehicle body frame 11 so as to be swingable up and down, and a rear wheel 22 rotatably supported at a rear end portion of the rear swing arm 21. A rear cushion 23 is disposed between the rear swing arm 21 and the vehicle body frame 11.

  The vehicle body frame 11 includes a pair of left and right main frames 25 that branch left and right from the head pipe 12 and extend obliquely rearward and downward, a pivot plate 26 connected to the rear portion of the main frame 25, and a downward extension from the head pipe 12. A down tube 27 that is bent and extends rearward and connected to the pivot plate 26 and a pair of left and right seat rails 29 that extend rearward from the main frame 25 and the pivot plate 26 are provided. The engine 17 is supported in a space surrounded by the main frame 25, the pivot plate 26, and the down tube 27, and a drive shaft that constitutes a power transmission mechanism that transmits the power of the engine 17 to the rear wheel 22 is a rear swing arm 21. It is arranged in the inside.

An air cleaner 31 and a fuel tank 32 are supported on the main frame 25, and the air cleaner 31 is connected to the engine 17 via a throttle body 38. An injector that injects fuel in the fuel tank 32 is attached to the throttle body 38, and fuel is mixed with clean air supplied from the air cleaner 31 by the injector and supplied to the engine 17. The engine 17 of the motorcycle 10 is a so-called V-type two-cylinder engine.
The seat rail 29 supports an occupant seat 33 and a grab rail 34, and the down tube 27 supports a radiator 36.

  The motorcycle 10 is provided with a vehicle body cover 40 that covers the vehicle body. The vehicle body cover 40 includes an upper cowling (cow ring) 41 that covers the front portion of the vehicle body, and a pair of left and right side covers 42 that cover the vehicle body side portions. The rear seat cowling 43 that covers the rear part of the vehicle body is provided. A front fender 48 that covers the front wheel 16 is attached to the front fork 13, and a rear fender 49 that covers the rear wheel 22 is attached to the rear seat cowling 43.

The upper cowling 41 is fixed to the head pipe 12 via a bracket 50. A headlight 41A is disposed on the front surface of the upper cowling 41, and a window made of a transparent resin material is provided above the headlight 41A. A screen 51 is provided.
The wind screen 51 can be moved in the vertical direction by a moving mechanism 60 (described later) fixed to the bracket 50 to adjust its height. Specifically, the wind screen 51 is configured to move in the front-rear direction when moving in the up-down direction, and the height position thereof increases as it goes rearward of the vehicle body. In this embodiment, the operating direction of the wind screen that moves back and forth and up and down is simply referred to as the up and down direction.
In the present embodiment, the upper cowling 41, the wind screen 51, and the moving mechanism 60 are included in the screen device 100.
Further, the side cover 42 is formed in a rectifying shape in which the air from the front of the vehicle is not directly applied to the driver's knee or the like but flows around it. The rear seat cowling 43 is integrally formed with a pair of left and right saddlebacks 44. That is, the motorcycle 10 secures a large capacity loading space by the saddle back 44 and secures an excellent wind protection effect by the relatively large body cover 40 and the wind screen 51, and is suitable for long-distance traveling. It is configured as a vehicle (so-called tourer type).

Next, the configuration of the screen device 100 will be described.
2 is an external perspective view of the screen device 100, and FIG. 3 is an exploded perspective view of FIG. 2 and 3, the screen device 100 includes an upper cowling 41, a wind screen 51 disposed on the upper cowling 41, and a moving mechanism 60 that moves the wind screen 51 in the vertical direction. Prepare.
The upper cowling 41 is formed in a streamline shape that smoothly spreads in the vehicle width direction and the vertical direction as it goes to the rear of the vehicle body so as to rectify and flow around the driver without directing the driving wind from the front of the vehicle body to the driver The main upper cowling (main cowling) 46 and a sub upper cowling (sub cowling) 47 which is disposed in a recess 46A formed on the upper surface of the main upper cowling 46 and constitutes the upper surface portion of the upper cowling 41. . The sub-upper cowling 47 is disposed so as to face the lower side of the wind screen 51 and is configured to be movable upward as the wind screen 51 rises, as will be described later.

As shown in FIG. 3, the wind screen 51 has a substantially trapezoidal shape that becomes wider as it goes upward. The wind screen 51 is integrally formed of a transparent resin material so as to ensure a front view. When the wind screen 51 is moved downward, the wind screen 51 is accommodated in the recess 46A of the main upper cowling 46 so as to overlap the sub upper cowling 47 as shown in FIG. And the surface 51B of the wind screen 51 are substantially flush with each other.
As a result, when the wind screen 51 is moved downward, the surface 51B of the wind screen 51 and the surface 46B of the main upper cowling 46 can be made into a flash surface. Therefore, the wind screen 51 and the main upper cowling The air resistance of the traveling wind with respect to 46 can be reduced.

  Further, as shown in FIG. 3, a pair of left and right openings 56, 56 are formed on the upper surface of the upper cowling 41, that is, on the upper surface of the sub-upper cowling 47. The openings 56, 56 are for passing a pair of left and right screen stays 57, 57 that connect the wind screen 51 and the moving mechanism 60 disposed below the sub-upper cowling 47 and the main upper cowling 46. It is formed along the rail parts 61 and 61 of the mechanism 60.

  As shown in FIG. 3, the moving mechanism 60 includes a base plate 65 fixed to the bracket 50 (FIG. 1), a pair of left and right rail portions 61 and 61 supported on both ends of the base plate 65, and Sliders 62 and 62 slidably supported on the rail portions 61 and 61, respectively, and a single motor-driven winding mechanism 63 connected to the sliders 62 and 62 via push cables 64 and 64. Prepare. This motor-driven winding mechanism 63 is disposed at a substantially central portion of the base plate 65.

In this configuration, when the push cables 64 and 64 are wound or pulled out by the motor-driven winding mechanism 63, the sliders 62 and 62 are guided by the rail portions 61 and 61, respectively, and move up and down. . The screen stays 57 and 57 are fixed to the sliders 62 and 62, respectively. The screen stays 57 and 57 pass through the openings 56 and 56 of the sub-upper cowling 47 as shown in FIG. A wind screen 51 is attached to the upper part of the screen stays 57, 57 exposed above the upper cowling 47.
Specifically, the screen stays 57 and 57 are elongated plate-like stay main body portions 57A and 57A that extend substantially obliquely upward toward the rear of the vehicle body, and bend outward from the upper edge of the stay main body portions 57A and 57A. Bending plate portions 57B and 57B. A through hole 58 that is fixed to the screw hole 62A of the slider 62 by a fixing member such as a hexagon bolt 70 is formed in the lower portion of the stay main body 57A. The screen stay 57 is fixed to the slider 62 by fixing the hexagon bolt 70 to the screw hole portion 62 </ b> A through the through hole 58.
A screw hole 59 is formed in the bent plate portion 57B. A fixing member such as a hexagon socket bolt 71 is fixed to the screw hole portion 59 through the through hole 51 </ b> A of the wind screen 51, so that the wind screen 51 is fastened to the screen stay 57. As a result, the wind screen 51 is connected to the sliders 62 and 62 of the moving mechanism 60 via the screen stays 57 and 57, so that the sliders 62 and 62 are guided and moved by the rail portions 61 and 61. Along with this, the wind screen 51 moves up and down.

  Further, as shown in FIG. 3, the rail portions 61, 61 are arranged on the base plate 65 so as to incline rearwardly of the vehicle body, and are formed in a bow shape in which the inclination angle becomes substantially vertical as going upward. . As a result, the wind screen 51 that has moved upward moves with its upper end slightly directed forward (that is, so as to be in an upright state) as it rises, and the wind screen 51 that has moved downward moves as it descends. It is configured to incline toward the rear side of the vehicle body. For this reason, the wind screen 51 moves up and down while changing its inclination angle. The wind screen 51 is moved up and down in response to an operation of an operation switch (not shown) provided on the handle of the motorcycle.

As described above, the main upper cowling 46 has a concave portion 46A in which the sub-upper cowling 47 and the wind screen 51 are accommodated. The recess 46A includes a bottom plate 80 extending in the front-rear direction and openings 81, 81 formed on both sides of the bottom plate 80. The screen stays 57, 57 described above pass through the openings 81, 81. At the rear end portion of the bottom plate 80, a spring locking portion 82 is formed on which one end 83A of the tension spring 83 is hooked. A pair of bearing portions 84 and 84 projecting from the back side of the main upper cowling 46 are formed in front of the openings 81 and 81, respectively.
The sub-upper cowling 47 has substantially the same shape as the concave portion 46A of the main upper cowling 46, and constitutes the upper surface portion of the upper cowling 41 by fitting into the concave portion 46A. The sub-upper cowling 47 includes a pair of left and right shaft insertion portions 86, 86 that project forward from the rear surface to the front end side substantially central portion 47A and have holes that communicate with the holes of the bearing portions 84, 84. By inserting the pins 87 and 87 into these holes and preventing the pins 87 and 87 from coming off, the sub-upper cowling 47 is connected to the main upper cowling 46 so that the inclination angle can be changed.
In the present embodiment, a configuration in which the inclination angle of the sub-upper cowling 47 is changed as one aspect of allowing the sub-upper cowling 47 to move upward as the wind screen 51 moves upward will be described.

Further, on the back surface of the sub-upper cowling 47, a spring locking portion 88 is formed at a position facing the spring locking portion 82 provided on the bottom plate 80 to which the other end 83B of the tension spring 83 is hooked. By this tension spring 83, the sub-upper cowling 47 is biased in a direction of moving downward (a direction in which the inclination angle of the sub-upper cowling 47 becomes smaller). For this reason, when the sub-upper cowling 47 moves upward (the inclination angle of the sub-upper cowling 47 increases), the holding force of the sub-upper cowling 47 can be secured by the urging force of the tension spring 83. .
Further, a pair of locking holes 89, 89 are formed in both side surfaces 47B, 47B of the sub-upper cowling 47, and when the sub-upper cowling 47 is moved downward on the side wall of the recess 46A of the main upper cowling 46. , Locking pieces 85 and 85 that fit into the locking holes 89 and 89 are formed. For this reason, when the sub-upper cowling 47 moves downward and is accommodated in the recess 46 </ b> A, the retaining pieces 85, 85 fit into the retaining holes 89, 89, thereby increasing the holding force of the sub-upper cowling 47. Can be secured.

In this configuration, a connecting mechanism 90 for connecting the sub-upper cowling 47 to the wind screen 51 is provided. The connecting mechanism 90 changes the tilt angle of the sub-upper cowling 47 in accordance with the tilt angle of the wind screen 51. It also functions as a variable tilt angle mechanism.
The connecting mechanism 90 includes screen stays 57 and 57 and a pair of left and right interlocking stays 91 and 91 that are connected to the screen stays 57 and 57 and link the sub-upper cowling 47 to the screen stays 57 and 57, respectively. Configured.
The interlocking stays 91, 91 are integrally formed along the pair of left and right openings 56, 56 on the center side of the back surface of the sub-upper cowling 47. A long hole portion 91A extending substantially obliquely upward is formed. Specifically, the long hole portion 91A is inclined in the rearward direction of the vehicle body, and is formed in a bow shape in which the upper portion swells and the inclination angle becomes substantially horizontal as it goes upward.
A resinous cylindrical collar 92 is slidably disposed in the elongated hole portion 91A, and a screw 93 is inserted into the cylindrical collar 92 from the center of the vehicle body toward the outside. The tip of the screw 93 protruding from the cylindrical collar 92 is fastened to a nut 94 fixed to the stay main body 57A of the screen stay 57 by welding or the like. Thereby, the screen stay 57 and the interlocking stay 91 are connected via the screw 93 inserted through the cylindrical collar 92, and the cylindrical collar 92 is connected to the elongated hole portion of the interlocking stay 91 according to the operation of the screen stay 57. By sliding in 91A, the sub-upper cowling 47 changes the inclination angle.

Next, the operation will be described.
FIG. 4 is a side sectional view showing a state in which the wind screen 51 is moved downward (Lo position), and FIG. 5 is a side sectional view showing a state in which the wind screen 51 is moved upward (Hi position).
When the wind screen 51 is moved downward from the Hi position (FIG. 5) to the Lo position (FIG. 4), for example, an operation switch (not shown) provided near the steering handle 4 is operated to The motor driven winding mechanism 63 is driven. Then, since the push cable 64 is wound around the motor-driven winding mechanism 63, the slider 62 connected to the push cable 64 moves downward along the rail portion 61. The slider 62 connected to the push cable 64 moves downward along the rail portion 61.
For this reason, as shown in FIG. 4, the wind screen 51 connected to the sliders 62 and 62 via the screen stays 57 and 57 changes with the movement of the sliders 62 and 62 so that the inclination angle becomes smaller. However, it moves downward in the front and is received in the recess 46A of the main upper cowling 46. In this case, since the surface 46B of the main upper cowling 46 and the surface 51B of the wind screen 51 are substantially flush, it is possible to achieve a flash surface between the surface 51B of the wind screen 51 and the surface 46B of the main upper cowling 46. Therefore, the air resistance of the traveling wind against the wind screen 51 and the main upper cowling 46 can be reduced.

Further, in this configuration, the sub-upper cowling 47 is connected to the wind screen 51 via the connection mechanism 90, and the inclination angle of the sub-upper cowling 47 changes according to the inclination angle of the wind screen 51. It is configured.
In this configuration, the screw 93 fastened to the screen stay 57 moves the elongated hole portion 91A of the interlocking stay 91 in the obliquely downward direction of the vehicle body (in the direction of the arrow X1 in the figure), so that the sub-upper cowling 47 has its inclination angle Moves in the direction of decreasing (in the direction of arrow Y1 in the figure). In this case, since the upper end of the sub-upper cowling 47 is urged in the direction in which the inclination angle becomes smaller by the tension spring 83, the sub-upper cowling 47 can easily be recessed 46A of the main upper cowling 46 by this urging force. Is housed in. As described above, in the present embodiment, the connecting mechanism 90 is adjusted so that the inclination angle of the sub-upper cowling 47 becomes smaller as the inclination angle of the wind screen 51 becomes smaller.

On the other hand, when the wind screen 51 is moved upward from the Lo position to the Hi position, the operation switch is operated to drive the motor-driven winding mechanism 63 in the reverse direction. Then, when the motor-driven winding mechanism 63 pulls out the push cable 64, the slider 62 connected to the push cable 64 moves upward along the rail portion 61. Therefore, as shown in FIG. 5, as the sliders 62 and 62 move, the wind screen 51 connected to the sliders 62 and 62 via the screen stays 57 and 57 changes so that the inclination angle increases. However, the rear part moves upward.
Also, the screw 93 fastened to the screen stay 57 moves the elongated hole portion 91A of the interlocking stay 91 in the diagonally upward direction of the vehicle body (in the direction of the arrow X2 in the figure), so that the sub-upper cowling 47 is connected to the tension spring 83. Resists the spring force against the spring force in the direction in which the inclination angle increases (in the direction of arrow Y2 in the figure). Thus, in the present embodiment, the coupling mechanism 90 is adjusted so that the inclination angle of the sub-upper cowling 47 increases as the inclination angle of the wind screen 51 increases.
For this reason, the inclination angle of the sub-upper cowling 47 increases as the wind screen 51 moves upward, so that the gap H between the sub-upper cowling 47 and the wind screen 51 is adjusted appropriately without becoming excessively large. Therefore, the amount of traveling wind flowing between the sub-upper cowling 47 and the wind screen 51 through the gap H can be adjusted. Furthermore, when the sub-upper cowling 47 is inclined, the wind direction of the traveling wind can be changed to the vicinity of the rear of the wind screen 51.
According to this, even if the wind screen 51 is at a position between the Lo position and the Hi position or at the Hi position, the amount of traveling wind that flows between the sub-upper cowling 47 and the wind screen 51. Since the wind direction can be adjusted, regardless of the position of the wind screen 51, the traveling wind can flow sufficiently behind the wind screen 51, and the space between the wind screen 51 and the driver is negative pressure. The ride comfort of the driver can be improved.
Further, the elongated hole portion 91A of the interlocking stay 91 is formed in a bow shape in which the upper portion swells and the inclination angle approaches substantially horizontal as it goes upward. Therefore, as the wind screen 51 moves upward, the sub-upper cowling 47 Can be increased. Therefore, it is possible to follow the operation of the wind screen 51 and keep the gap H between the wind screen 51 and the sub-upper cowling 47 properly.

  As described above, according to this embodiment, the windscreen 51 is provided on the upper part of the upper cowling 41 that covers the front upper part of the vehicle body, and the screen device 100 of the motorcycle 10 that supports the windscreen 51 so as to be movable up and down. 2, the sub-upper cowling 47 that is disposed to face the lower portion of the wind screen 51 and forms the upper surface portion of the cowling is erected as the wind screen 51 moves upward, and the wind screen 51 and the sub-upper cowling 47 In order to adjust the air volume and direction of the traveling wind flowing between the two, the traveling wind can be sufficiently flowed behind the wind screen 51, and the space between the wind screen 51 and the driver becomes negative pressure. Since it can suppress, a driver | operator's riding comfort can be improved.

  In addition, according to the present embodiment, the upper cowling 41 includes the main upper cowling 46 having a concave portion 46 </ b> A on the upper surface, and the inclination angle is changed with the movement of the wind screen 51 in the concave portion 46 </ b> A of the main upper cowling 46. And since the sub upper cowling 47 which forms the upper surface part of the upper cowling 41 is arrange | positioned, the structure which adjusts the wind volume and wind direction of the driving | running | working wind which flows between the wind screen 51 and the sub upper cowling 47 can be simplified.

  Further, according to the present embodiment, when the wind screen 51 is moved downward, the wind screen 51 is accommodated in the recess 46A of the main upper cowling 46, and the surface 51B of the wind screen 51 and the surface of the main upper cowling 46 are included. 46B is configured to be substantially flush with the surface 46B of the wind screen 51, the surface 46B of the main upper cowling 46 can be flushed with the wind screen 51 and the main upper cowling. The air resistance of the traveling wind with respect to 46 can be reduced.

As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this, A various design deformation | transformation can be performed. For example, in the above-described embodiment, as one of the modes in which the upper surface portion of the upper cowling 41 can be moved upward as the wind screen 51 moves upward, the sub upper cowling 47 corresponding to the upper surface portion Although the configuration for changing the tilt angle has been described, other configurations may be used.
In the above-described embodiment, the case where the present invention is applied to a screen device for a motorcycle that drives the wind screen 51 with an electric motor has been described. However, a drive source other than the electric motor may be used, or a wind screen may be used. The present invention can be widely applied to a manual screen device or the like in which 51 is manually operated.

1 is a side view of a motorcycle according to an embodiment of the present invention. It is a perspective view which shows a screen apparatus. FIG. 3 is an exploded perspective view of FIG. 2. It is side sectional drawing which shows the state which the wind screen moved below. It is a sectional side view which shows the state which the wind screen moved upwards.

Explanation of symbols

10 Motorcycle 41 Upper cowling (cow ring)
46 Main Upper Cowling 46A Recess 46B Surface 47 Sub Upper Cowling (Sub Cowling)
47A Lower center substantially central portion 51 Wind screen 56 Opening portion 57 Screen stay 60 Moving mechanism 61 Rail portion 62 Slider 84 Bearing portion 86 Shaft insertion portion 87 Pin 90 Connecting mechanism 91 Interlocking stay 91A Long hole portion 100 Screen device H Clearance

Claims (2)

In a motorcycle screen device comprising a wind screen on the upper part of the cowling covering the front upper part of the vehicle body, and supporting the wind screen movably up and down,
The upper surface portion of the cowling disposed opposite to the lower portion of the wind screen moves upward as the wind screen moves upward, and the running wind flowing between the wind screen and the upper surface portion of the cowling is A screen device for a motorcycle characterized by adjusting.   The motorcycle screen device according to claim 1, wherein a concave portion is provided on an upper surface of the cowling, and a sub cowling that moves upward together with the wind screen and forms an upper surface portion of the cowling is disposed in the concave portion. .

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