JP4180728B2 - Motorcycle leg shield - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a leg shield that has been redesigned in a motorcycle.
[0002]
[Prior art]
2. Description of the Related Art Business motorcycles include a leg shield that covers the front of both occupant legs at the front of the vehicle.
This leg shield will be described below.
FIG. 6 is a side view of a conventional two-wheeled vehicle. The two-wheeled vehicle 100 includes a front fork 102 and a front wheel 103 that are attached to a front portion of a body frame 101 in a steerable manner, a handle 104 that is attached to an upper portion of the front fork 102, and a body frame. An integrated leg shield 105 attached to the front and upper parts of 101, a power unit 106 composed of an engine and a transmission disposed in the center of the body frame 101, a rear wheel 107 driven by the power unit 106, and a body frame 101 And a seat 108 attached to the upper rear portion.
The leg shield 105 is a resin part in which a small window 111 for inspection is opened.
[0003]
[Problems to be solved by the invention]
In the leg shield 105, since the small window 111 is formed with a dedicated mold, the mold cost is increased, and the die-cutting process at the time of molding becomes complicated, resulting in a decrease in productivity.
Furthermore, the small window 111 is formed into a shape in which peripheral edges are smoothly connected so as not to generate stress concentration. However, in recent years, not only the outer shape of the leg shield 105 but also the small window 111 is new due to diversification of user needs. A design is desired, and it is required to form the small window 111 in an unprecedented shape.
SUMMARY OF THE INVENTION An object of the present invention is to provide a leg shield for a two-wheeled vehicle that can be easily molded by a mold and has a redesigned small window.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a first aspect of the present invention provides a two-wheeled vehicle in which a main pipe is extended rearward from a head pipe, and a leg shield that covers the upper side and the side of the main pipe and covers both front portions of the driver's legs is attached. The shield consists of left and right shield halves arranged on the left and right of the main pipe, and a center cover attached to the top of these left and right shield halves. When the center cover is attached, a notch that forms the left and right windows is formed . The notch is composed of a front inclined portion and a bottom curved portion, and the left and right windows are composed of a front inclined portion. A first straight portion, a curved portion bent downward from the first straight portion, and a second straight portion connecting the first straight portion and the curved portion and including a front extending portion of the center cover. Be done It is a square window, the corner connecting the first straight part and the curved part is an arc, the corner connecting the curved part and the second straight part is an acute angle, and the second straight part and the first straight part are connected. The corner is obtuse and the leg shield overlaps with the cylinder head of the engine and the intake pipe connected to this cylinder head, which are located below the main pipe in side view, and is placed in the leg shield from the left and right windows. The rear portion of the air cleaner case and the upper portion of the carburetor disposed behind the air cleaner case are exposed .
[0005]
Notches are formed in the left and right shield halves to eliminate the conventional small window mold and simplify the die cutting process.
In addition, a center cover is attached to the cutouts formed in the left and right shield halves to form left and right windows with sharp or obtuse corners on the inner periphery, renewing the leg shield window design. .
[0006]
According to a second aspect of the present invention, the center cover is detachable independently of the left and right shield halves.
Maintenance is further improved by removing the center cover.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of a two-wheeled vehicle provided with a leg shield according to the present invention. The two-wheeled vehicle 10 includes a front fork 13 and a front wheel 14 that are steerably attached to a head pipe 12 provided at a front portion of a vehicle body frame 11, and a front A handle 16 integrally attached to the upper portion of the fork 13, a leg shield 17 attached to the front upper portion and the front side portion of the vehicle body frame 11 to cover both occupant legs, and an engine suspended from the vehicle body frame 11 18 and a transmission 21, a rear wheel 23 connected to an output shaft of the transmission 21 via a chain (not shown) housed in a chain case 22, a fuel tank 24 and a tool attached to a center portion and a rear portion of the vehicle body frame 11. A box 25, a seat 26 disposed above the fuel tank 24 and the tool box 25, and a seat 26 disposed below the seat 26. The side cover 27, stays 28 and 28 (the rear side 28 is not shown) protruded from the body frame 11 between the fuel tank 24 and the tool box 25 in the vehicle width direction, and the stays 28 and 28 and the chain case The rear cushion units 31 and 31 (the rear side 31 is not shown) passed between the swing arms (not shown) disposed in the interior 22. In addition, 32 is a headlamp, 33 is a front fender, 34 is a rear grip, 35 is a tail lamp, 36 is a rear fender, 37 is a main stand, and 38 is a muffler.
[0008]
FIG. 2 is an exploded perspective view of the leg shield according to the present invention. The leg shield 17 includes left and right shield halves 41 and 42 divided into left and right parts, and upper portions of these left and right shield halves 41 and 42. The center cover 43 is attached.
The left and right shield halves 41 and 42 are inner side walls 45 and 46 facing the sides of the vehicle body frame 11 (see FIG. 1), and front side walls raised from the inner side walls 45 and 46 to cover both legs of the occupant. 47, 48.
[0009]
The inner side walls 45 and 46 include notches 53 and 54 formed in the upper sides 51 and 52 and rear extension portions 55 and 56 extending rearward along the body frame 11 (see FIG. 1).
The notches 53 and 54 include front inclined portions 57 and 58 and bottom curved portions 61 and 62.
[0010]
The center cover 43 is detachable independently of the left and right shield halves 41 and 42, and has a central wall 63 that follows the upper shape of the body frame 11 and a side wall 64 that is lowered from the central wall 63. , 65, and front extending portions 66, 67 extending forward from the side walls 64, 65 (rear side 67 is not shown). Reference numerals 68 and 71 denote attachment portions for attachment to the left and right shield halves 41 and 42.
[0011]
In this way, the leg shield 17 is divided into the left and right shield halves 41 and 42 and the center cover 43 so that, for example, the left and right shield halves 41 and 42 and the center cover 43 are colored differently. The design of the leg shield 17 can be diversified.
[0012]
FIG. 3 is a side view of the main part of the leg shield and the leg shield according to the present invention.
The leg shield 17 includes a main pipe 81 extending rearward from the head pipe 12, a cross pipe 82 extending rearward from the middle of the main pipe 81, a cylinder 83 and a cylinder head 84 of the engine 18, and the cylinder head 84. The intake pipe 85, carburetor 86, and air cleaner case 87 of the intake system to be connected are covered.
[0013]
The left and right shield halves 41 and 42 (the back side 42 is not shown) and the center cover 43 are combined to form left and right windows 91 and 92 (the back side 92 is not shown). The left and right windows 91 and 92 have the same shape when viewed from the side, and the following description will be made with the left window 91.
The left window 91 is a substantially triangular window opened at a position where the upper portion of the carburetor 86 is exposed, and is a short substantially straight first straight portion 93 and a curved portion curved downward from the first straight portion 93. 94 and a long, substantially straight second linear portion 95 connecting the first linear portion 93 and the curved portion 94.
[0014]
The first straight portion 93 is the front inclined portion 57 of the notch 53 of the left shield half 41 shown in FIG. 2, and the curved portion 94 is the bottom of the notch 53 of the left shield 41 shown in FIG. The curved portion 61 and the second linear portion 95 are formed from the front extending portion 66 of the center cover 43 shown in FIG.
A corner 96 connecting the first straight portion 93 and the curved portion 94 is arcuate, a corner 97 connecting the curved portion 94 and the second straight portion 95 is an acute angle, and the second straight portion 95 and the first straight line are connected. A corner 98 connecting the portion 93 is an obtuse angle.
[0015]
As shown in FIGS. 2 and 3, the left and right shield halves 41 and 42 are formed by forming the notches 53 and 54 in the upper sides 51 and 52 of the left and right shield halves 41 and 42, respectively. Can be molded with one mold each, while the small window mold can be abolished while the small window mold can be abolished while the mold opening process can be simplified. The left and right shield halves 41 and 42 can be easily formed. Therefore, the mold cost of the leg shield 17 can be reduced and the productivity can be improved.
[0016]
In addition, the left and right shield halves are formed with notches 53 and 54 at 41 and 42, and the center cover 43 is attached to the notches 53 and 54 to form the left and right windows 91 and 92. Unprecedented acute and obtuse angles can be formed on the peripheral edges of the left and right windows 91 and 92, and the design of the left and right windows 91 and 92 of the leg shield 17 can be renewed.
[0017]
Next, the operation of the leg shield 17 described above will be described.
FIG. 4 is an explanatory diagram for explaining the operation of the leg shield according to the present invention. For example, when adjusting the idling speed by the carburetor 86, the driver D is inserted from the left window 91 or the right window 92 (not shown), The driver D rotates an idle adjustment screw (not shown) provided on the carburetor 86 to change the fuel flow rate at idling.
When the air / fuel ratio is adjusted by the carburetor 86, the driver D is inserted from the left window 91 or the right window 92, and a jet (not shown) provided on the carburetor 86 is removed by the driver D so that the fuel flow path has a different diameter. Change the fuel flow rate.
[0018]
Next, the operation of the center cover 43 of the leg shield 17 will be described next.
FIG. 5 is an explanatory view for explaining the operation of the center cover of the leg shield according to the present invention. As an item that cannot be confirmed from the left and right windows 91 and 92 (the right window 92 is not shown) by removing the center cover 43, The state of the cylinder, cylinder head, intake pipe, carburetor 86 and air cleaner case 87, for example, no sound is generated from the cylinder and cylinder head, there is no oil leakage, and there is no fuel leakage from the carburetor 86 Check whether there is any abnormality in the intake sound from the air cleaner case 87.
In this way, by removing the center cover 43, the maintainability can be further improved.
[0019]
In the leg shield 17 shown in FIG. 2, the left and right shield halves 41 and 42 are provided with the notches 53 and 54. However, the present invention is not limited to this, and the center cover is provided with a notch. The left and right windows may be formed by attaching the center cover with a part to the left and right shield halves.
[0020]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
The leg shield of a motorcycle according to claim 1 is composed of left and right shield halves arranged on the left and right of the main pipe, and a center cover attached to the upper part of these left and right shield halves. A notch that forms the left and right windows when the center cover is attached is formed on each upper side of the body. The notch is composed of a front inclined part and a bottom curved part, and the left and right windows are A first straight line portion formed of a front inclined portion, a curved portion bent downward from the first straight line portion, and the first straight portion and the curved portion are connected to each other and a front extension portion of the center cover. A triangular window composed of a second straight part, a corner connecting the first straight part and the curved part is an arc, a corner connecting the curved part and the second straight part is an acute angle, a second straight line The corner connecting the part and the first straight part is obtuse, and the leg shield is It overlaps with the cylinder head of the engine placed under the pipe and the intake pipe connected to this cylinder head, and is placed from the left and right windows to the rear of the air cleaner case placed in the leg shield and behind this air cleaner case. Since the upper part of the carburetor is exposed , the left and right shield halves can be molded in one mold. This makes it possible to abolish the small window mold as compared to the conventional method of opening a small window in the leg shield, simplify the process of die cutting, and mold the left and right shield halves with the mold. It can be done easily. Therefore, the mold cost of the leg shield can be reduced and the productivity can be improved.
In addition, sharp and obtuse corners that have never been seen can be formed on the periphery of the left and right windows, and the design of the left and right windows of the leg shield can be renewed.
[0021]
In the leg shield for a motorcycle according to claim 2, since the center cover is made detachable independently of the left and right shield halves, the maintainability can be further improved by removing the center cover.
[Brief description of the drawings]
FIG. 1 is a side view of a motorcycle equipped with a leg shield according to the present invention. FIG. 2 is an exploded perspective view of the leg shield according to the present invention. FIG. 4 is an explanatory view explaining the operation of the leg shield according to the present invention. FIG. 5 is an explanatory view explaining the operation of the center cover of the leg shield according to the present invention. FIG. 6 is a side view of a conventional motorcycle. Explanation of]
DESCRIPTION OF SYMBOLS 10 ... Two-wheeled vehicle , 12 ... Head pipe, 17 ... Leg shield, 18 ... Engine, 41 ... Left shield half body, 42 ... Right shield half body, 43 ... Center cover, 51, 52 ... Upper side, 53, 54 ... Notch 57 , 58 ... front inclined part, 61, 62 ... bottom curved part, 66, 67 ... forward extension part, 81 ... main pipe, 84 ... cylinder head, 85 ... intake pipe, 86 ... carburetor, 87 ... air cleaner case , 91 ... left window, 92 ... right window, 93 ... first linear portion, 94 ... curved portion, 95 ... second linear portion, 96, 97, 98 ... corner.

Claims (2)

In a two-wheeled vehicle with a leg pipe extending from the head pipe to the rear and covering the upper and sides of the main pipe and a leg shield covering the front of both legs of the occupant,
The leg shield is composed of left and right shield halves arranged on the left and right sides of the main pipe, and a center cover attached to the upper part of the left and right shield halves, and each of the left and right shield halves. On the top side, a notch that forms the left and right windows when the center cover is attached is formed.
The notch portion comprises a front inclined portion and a bottom curved portion,
The left and right windows connect the first straight portion formed of a front inclined portion, a curved portion bent downward from the first straight portion, the first straight portion and the curved portion, and the center cover. A triangular window composed of a second straight line portion consisting of a front extending portion of
The corner connecting the first straight part and the curved part is an arc, the corner connecting the curved part and the second straight part is an acute angle, and the corner connecting the second straight part and the first straight part. Part is obtuse,
The leg shield overlaps with an engine cylinder head disposed below the main pipe in a side view and an intake pipe connected to the cylinder head,
A leg shield for a two-wheeled vehicle, wherein a rear portion of an air cleaner case disposed in the leg shield and an upper portion of a carburetor disposed at the rear of the air cleaner case are exposed from the left and right windows. The leg shield for a motorcycle according to claim 1 , wherein the center cover is detachable independently of the left and right shield halves.

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