JP2010228533A - Front cover structure of motorcycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a front cover structure of a motorcycle for restraining the generation of a turbulent flow, and easily controlling a travel wind of striking on a driver. <P>SOLUTION: In this front cover structure of the motorcycle, a headlight 31 is fixed to a front part of a vehicle, and a screen 61a is formed above this headlight 31, and side cowls 62 and 63 are arranged on the right and left so as to sandwich the headlight 31 and the screen 61a. At least a part of a rear end part of the side cowls 62 and 63 forms turning-in parts 62a and 63a turning in up to the rear of the screen 61a. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a front cover structure for a motorcycle.

  As a conventional front cover structure of a motorcycle, a three-piece front cowling is known (see, for example, Patent Document 1).

  According to FIGS. 2 and 5 of Patent Document 1, the front cowling 21 includes a left cowling 50a and a right cowling 50b that cover the left and right of the headlight, and an upper portion of the left cowling 50a and the right cowling 50b that covers the top of the headlight. And a screen 58 connecting the two.

JP 2007-186128 A

  In Patent Document 1, the front cowling 21 has a structure in which a rear portion is opened to the outside, so that turbulent flow is likely to occur at the rear end portion of the front cowling 21, and a desired vehicle motion characteristic and traveling wind rectification effect are obtained. It is difficult.

  An object of the present invention is to provide a front cover structure for a motorcycle that can suppress generation of turbulent flow and obtain desired vehicle motion characteristics and rectifying effect of traveling wind.

  According to the first aspect of the present invention, there is provided a front of a motorcycle in which a headlight is fixed to a front portion of a vehicle, a screen is formed above the headlight, and side cowls are provided on both sides so as to sandwich the headlight and the screen. In the cover structure, at least a part of the rear end portion of the side cowl forms a wraparound portion that wraps around to the rear of the screen.

  The invention according to claim 2 is characterized in that a meter cover that covers the periphery of the meter is disposed behind the screen and between the left and right side cowls, and the meter cover is coupled to the wraparound portion.

  The invention according to claim 3 is characterized in that a rear projecting portion having a shape that projects rearward and continues to the side of the wraparound portion is formed at the rear end portion of the screen.

  The invention according to claim 4 is provided with a recess for partitioning the wraparound portion and the rear protrusion, and the recess is formed on the surface of the side cowl so as to extend rearward from the upper corner portion of the headlight. Features.

  In the invention according to claim 5, the front cover is formed so as to cover the periphery of the headlight, the base cowl is formed integrally with the screen, the side cowl formed separately from the base cowl, and the vehicle body. A rear cover that is fixed and covers the rear of the headlight, and a meter cover that covers the upper open space surrounded by the base cowl, the side cowls, and the rear cover, are provided.

  The invention according to claim 6 is characterized in that, in the base cowl, a rear cover that covers the rear is attached to the lower part of the rear part, and a slit is formed in the rear cover.

  In the invention according to claim 1, since at least a part of the rear end portion of the side cowl constituting the front cover forms a wraparound portion that wraps around to the rear of the screen, the traveling wind flowing in the vicinity of the side cowl on the side of the headlight is generated. The flow can be rectified so as to be wound behind the screen at the wraparound portion, turbulent flow generated at the rear end portion of the side cowl can be suppressed, and the vehicle motion characteristics can be improved. Further, the driving wind can be controlled so that a certain amount of driving wind is applied to the driver while the wind or the like is being shielded by a screen or the like, and a moderate refreshing feeling can be felt.

  In the invention according to claim 2, the meter cover that covers the periphery of the meter is disposed behind the screen and between the left and right side cowls, and since this meter cover is coupled to the wraparound portion, the wraparound portion and the meter cover are continuous. A smooth surface is formed, and this surface can enhance the rectifying effect of the traveling wind and improve the appearance.

  In the invention according to claim 3, the rear end portion of the screen protrudes rearward and is formed with a rearward protruding portion having a shape continuous with the wraparound portion on the side of the wraparound portion. In addition, the running wind applied to the driver can be appropriately distributed by causing the running wind to be caught behind the screen by the wraparound portion while the wind-proofing action is achieved by the rear projecting portion.

  In the invention according to claim 4, a recess is provided that partitions the wraparound portion and the rear protrusion, and this recess is formed on the surface of the side cowl so as to extend rearward from the upper corner of the headlight. The running air flowing between the wraparound portion and the rearward protruding portion can be distributed by the concave portion, and the driver can feel an appropriate refreshing feeling.

  In the invention according to claim 5, the front cover is formed so as to cover the periphery of the headlight, the base cowl formed integrally with the screen, the side cowl formed separately from the base cowl, and the vehicle body. It is composed of a rear cover that is fixed and covers the rear of the headlight, and a meter cover that covers the upper open space surrounded by the base cowl, side cowl, and rear cover. Thus, the traveling wind around the headlight can be rectified.

  In the invention according to claim 6, since the slit is formed in the rear cover, after the headlight is cooled using the traveling wind that enters from the gap formed between the headlight and the base cowl, Can be effectively discharged from the slit to the outside, and the cooling effect of the headlight can be enhanced.

1 is a side view of a motorcycle including a front cover structure according to the present invention. It is a side view of the vehicle body front part which shows the front cover structure concerning this invention. It is a front view of the vehicle body front part which shows the front cover structure which concerns on this invention. It is a top view of the vehicle body front part which shows the front cover structure concerning this invention. It is a perspective view explaining the recessed part of the side cowl which concerns on this invention. It is a perspective view of the base cowl which concerns on this invention. It is a front view of the base cowl which concerns on this invention. It is a front view of the rear cover concerning the present invention. It is the 1st operation view showing the assembly procedure of the front cover structure concerning the present invention. It is a 2nd operation | movement figure which shows the assembly point of the front cover structure which concerns on this invention. It is the 3rd operation figure showing the assembly point of the front cover structure concerning the present invention.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the description, left, right, front, and rear indicate directions based on the driver who has boarded the vehicle. The drawings are to be viewed in the direction of the reference numerals.

Examples of the present invention will be described.
As shown in FIG. 1, a motorcycle 10 has a front fork 13 attached to a head pipe 12 constituting a front end portion of a body frame 11 so as to be steerable, and a pair of left and right main frames 14 constituting a central portion of the body frame 11. , 14 (only the reference numeral 14 on the front side) and the down frame 16 are mounted with the engine 17, and a pair of left and right pivot plate portions 18, 18 provided on the lower part of the main frames 14, 14 (only the reference numeral 18 on the front side). 1), a swing arm 21 is attached to the front fork 13 through a pivot shaft 20, and a front wheel 22 is attached to the lower end of the front fork 13, and a rear wheel 23 is attached to the rear end of the swing arm 21.
A front cowl 32 provided so as to surround the headlight 31 is attached to an upper front portion of the front fork 13.

  Here, reference numeral 41 is a bar handle attached to the upper end of the front fork 13, 42 is a front fender that covers the upper side of the front wheel 22, 43 is a fuel tank, 44 is a seat, 46 is a tail lamp, and 47 is an upper side of the rear wheel 23. A rear fender 51, an exhaust pipe 51, a catalyst 52, a muffler 53, a rear cushion unit 54, a chain 56, and a side stand 57.

An arrow (FRONT) in FIG. 2 indicates the front of the vehicle. (same as below.)
As shown in FIG. 2, the front cowl 32 includes a base cowl 61 provided with a screen 61a covering the top of the headlight 31, and side cowls 62, 63 covering both sides of the headlight 31 (only the reference numeral 62 on the front side). And a rear cover 64 that covers the lower rear of the headlight 31. In the figure, in order to facilitate understanding of the shape of each component constituting the front cowl 32, a different pattern for identification is given to each component. Further, the side cowls 62 and 63 are provided with different patterns for identification in each part in one part.

  In the figure, reference numeral 66 denotes a number plate attached to the lower end portion of the front cowl 32, 67 denotes a top bridge connecting the upper left and right of the front fork 13, and 68 and 68 (only the reference numeral 68 on the front side is shown) is the top bridge 67. A handle bracket 71 for attaching the bar handle 41 to the bar handle 41 is a clutch lever attached to the bar handle 41.

  The screen 61a is a part that acts as a windbreak to reduce the amount of traveling wind that hits the driver from the front of the vehicle by rectifying the traveling wind along the upper surface 61b that extends upward as it goes rearward.

As shown in FIG. 3, a screen 61 a is disposed at the upper center portion of the headlight 31, and left and right side cowls 62 and 63 (with contours) above the headlight 31 and on the left and right of the screen 61 a and on both sides of the headlight 31. The under cowl portion 61c constituting the base cowl 61 is disposed below the headlight 31. Reference numerals 75 and 75 are fork pipes that constitute the front fork 13 and that extend from side to side.
The under cowl portion 61 c is a portion for rectifying traveling wind passing under the front cowl 32.

  The side cowls 62 and 63 include upper side portions 62g and 63g located on the side of the screen 61a, side bulging portions 62h and 63h that bulge to the side, and the upper side portions 62g and 63g and the side bulging. Headlight side edge portions 62j and 63j that form edges of the headlights 31 side of the portions 62h and 63h, and the upper side portions between the upper side portions 62g and 63g and the side bulging portions 62h and 63h. Dividing lines 62m and 63m that divide 62g and 63g and the side bulging portions 62h and 63h, and trough portions 62c and 63c including corner portions of the headlight side edge portions 62j and 63j are provided.

  As shown in FIG. 4, at the rear part of the left and right side cowls 62, 63 (the outline is indicated by a thick line), there are triangular wrapping parts 62a, 63a that wrap around to the rear of the screen 61a, and Back projecting portions 62b and 63b having a shape that protrudes and is continuous with the wrapping portions 62a and 63a are formed on the sides of the wrapping portions 62a and 63a, and between these wrapping portions 62a and the rear projecting portions 62b, and wraparound Valley portions 62c and 63c are provided between the portion 63a and the rearward protruding portion 63b, respectively, extending in the front-rear direction.

  The wraparound portions 62a and 63a are portions for rectifying the traveling wind so that the traveling wind is caught behind the screen 61a. In this way, a part of the traveling wind is obtained by winding the running wind behind the screen 61a. It can be applied to the driver and the driver can feel refreshed.

  Reference numeral 62p in the figure denotes a ridge line between the wraparound portion 62a and the upper side portion 62g of the side cowl 62, and 63p denotes a ridgeline between the wraparound portion 63a of the side cowl 63 and the upper side portion 63g. The surface of the wraparound portion 62a and the surface of the upper side portion 62g, and the surface of the wraparound portion 63a and the surface of the upper side portion 63g are provided so as to form an obtuse angle with the ridgelines 62p and 63p as a boundary.

The rear projecting portions 62b and 63b are portions provided at the rear portions of the side bulging portions 62h and 63h, and rectify the running wind passing through the side of the side cowls 62 and 63 so as to flow rearward, thereby Together with 61a, it serves to prevent the driving wind from hitting the driver.
Therefore, it is possible to control the distribution of the traveling wind hitting the driver by the wraparound portions 62a and 63a and the rear protrusions 62b and 63b.

  Two meters 81 and 82 are disposed between the wraparound portions 62a and 63a, and the circumference of these meters 81 and 82 is covered with a meter cover 83 attached to the wraparound portions 62a and 63.

The meter cover 83 constitutes a part of the front cowl 32 and forms a continuous surface with the wraparound portions 62a and 63a. Accordingly, the meter cover 83 further rectifies the traveling wind that has sneak behind the screen 61a by the sneak portions 62a and 63a.
The trough portions 62c and 63c are portions extending from the left and right upper corner portions 35a and 35b of the lens 35 constituting the headlight 31 so as to curve backward.
The rear opening of the base cowl 61, the side cowls 62 and 63, and the upper opening 84 surrounded by the rear cover 64 are covered with a meter cover 83.

As shown in FIG. 5, the side cowl 63 (the part whose outline is indicated by a thick line) includes a headlight side edge portion 63j and a recess that partitions the upper side portion 63g and the side bulging portion 63h. The valley part 63c is formed.
The trough part 63c is also a part that divides the wraparound part 63a and the rearward protruding part 63b.
The side cowl 62 (see FIG. 3) is the same as the side cowl 63.

  As shown in FIG. 6, the base cowl 61 includes a screen 61a and a front cowl body 61e formed integrally with the screen 61a. The front cowl body 61e includes left and right inner cowls 61f and 61g adjacent to the screen 61a. And an under cowl portion 61c that connects lower end portions of the inner cowl portions 61f and 61g.

  The inner cowl portions 61f and 61g are portions located inside the side cowls 62 and 63 (see FIG. 3), and are provided with a plurality of attachment portions (details will be described later) for attaching the side cowls 62 and 63. Yes.

  As shown in FIG. 7, the base cowl 61 is provided with side cowls 62 f and 63 g (see FIG. 3) on the inner cowls 61 f and 61 g (the outlines are indicated by thick lines). A cowl mounting portion 85 to 88, a rear cover mounting hole 91 opened in each of the inner cowl portions 61f and 61g for mounting the rear cover 64 (see FIG. 2), and a rear cover opened in the under cowl portion 61c for mounting the rear cover 64 And a mounting hole 92.

  The side cowl mounting portion 85 includes a rectangular hole 85a and a mounting hole 85b provided in the vicinity of the rectangular hole 85a. The side cowl mounting portion 86 is provided in the vicinity of the rectangular hole 86a and the rectangular hole 86a. The side cowl mounting portion 87 includes a rectangular hole 87a and a mounting hole 87b provided near the rectangular hole 87a, and the side cowl mounting portion 88 includes a rectangular hole 88a.

  The rectangular holes 85a to 88a are portions into which plate-like protrusions (not shown) provided on the inner surfaces of the side cowls 62 and 63 are inserted, and by inserting the plate-like protrusions into the rectangular holes 85a to 88a, The side cowls 62 and 63 are positioned with respect to the base cowl 61.

  The mounting holes 85b to 87b are portions into which the tip ends of tapping screws inserted into screw insertion holes (not shown) formed in the plate-like projecting portions are screwed, and the side cowls 62 and 63 are base cowls by the tapping screws. 61 is fixed.

As shown in FIG. 8, the rear cover 64 is opened at the upper left and right and lower center to be attached to a plurality of slits 64 a provided at the upper part for ventilation and the rear lower part of the base cowl 61 (see FIG. 6). Three base cowl mounting holes 64b and a meter cover mounting hole 64c opened in the upper center for mounting to the meter cover 83 (see FIG. 4) are provided.
The slit 64a is a portion for discharging the air flowing into the front cowl 32 (see FIG. 2) to the outside.

The procedure for assembling the front cowl 32 described above will now be described.
First, as shown in FIG. 9, the side cowls 62 and 63 (only the front side reference numeral 62 is shown) are attached to the base cowl 61.

Specifically, the plate-like protrusions 95 to 98 provided on the inner surface of the side cowl 62 are respectively connected to the rectangular holes 85a to 88a provided in the inner cowls 61f and 61g (only the reference numeral 61f on the front side) of the base cowl 61. The tapping screw is inserted into a screw insertion hole (not shown) opened in each of the plate-like projecting portions 95 to 97, and the tip of the tapping screw is attached to the mounting hole 85b provided inside the inner cowl portions 61f and 61g. -87b (see FIG. 6).
Further, the side cowl 63 is assembled in the same manner. This completes the assembly of the side cowls 62 and 63 to the base cowl 61.

Next, as shown in FIG. 10 (the arrow (LEFT) in the figure indicates the left side of the vehicle body, and the arrow (RIGHT) indicates the right side of the vehicle body), the meter cover 83 is attached to the side cowls 62 and 63.
Specifically, the meter cover 83 is applied to the inner surfaces of the wrapping portions 62a and 63a of the side cowls 62 and 63, and tapped on the left and right screw insertion holes 83a and 83a and the left and right screw insertion holes 83b and 83b provided in the meter cover 83. Through the screw, the tip of the tapping screw is screwed into the mounting holes of the boss portions 62d, 62e, 63d, 63e formed on the inner surfaces of the wrapping portions 62a, 63a. This completes the assembly of the meter cover 83 to the side cowls 62, 63.

Next, as shown in FIG. 11, the rear cover 64 is attached to the base cowl 61.
Specifically, the rear cover 64 is applied to the lower part of the rear portion of the base cowl 61, a tapping screw is passed through the base cowl mounting hole 64 b of the rear cover 64, and the tip of the tapping screw is screwed into the rear cover mounting holes 91 and 92 of the base cowl 61. Thus, the assembly of the rear cover 64 to the base cowl 61 is completed.

Finally, as shown in FIGS. 10 and 11, the upper portion of the rear cover 64 is attached to the meter cover 83.
Specifically, a tapping screw is passed through a screw insertion hole 64 c provided in the upper part of the rear cover 64, and a tip end portion of this tapping screw is screwed into a rear cover mounting hole 83 d provided in the lower center of the meter cover 83. Thus, the assembly of the rear cover 64 to the meter cover 83 is completed.

As shown in FIGS. 1, 2, and 4, the headlight 31 is fixed to the front portion of the vehicle, and a screen 61 a is formed above the headlight 31 so as to sandwich the headlight 31 and the screen 61 a. In the front cover structure of the motorcycle 10 in which the side cowls 62, 63 are provided on the left and right sides, at least a part of the rear ends of the side cowls 62, 63 form wrap-around portions 62a, 63a that wrap around to the rear of the screen 61a. Therefore, the traveling wind flowing in the vicinity of the side cowls 62, 63 on the side of the headlight 31 can be rectified by the wrap-around portions 62a, 63a so as to be wound behind the screen 61a, and the rear ends of the side cowls 62, 63 can be rectified. The generated turbulent flow can be suppressed.
In addition, the driving wind can be controlled so that a certain amount of driving wind is applied to the driver while the wind of the driving wind is being achieved by the screen 61a or the like, and an appropriate refreshing feeling can be felt.

  As shown in FIGS. 4 and 10 above, the meter cover 83 covering the periphery of the meters 81 and 82 is disposed behind the screen 61a and between the left and right side cowls 62 and 63. Since it is combined with 62a, 63a, a continuous surface is formed by the wraparound portions 62a, 63a and the meter cover 83, and this surface can enhance the rectifying effect of the traveling wind and improve the appearance. .

  As shown in FIG. 4 above, the rear end of the screen 61a protrudes rearward and has rearward protrusions 62b and 63b having a shape continuous with the wraparounds 62a and 63a on the sides of the wraparounds 62a and 63a. Therefore, the wind is entangled behind the screen 61a by the wrap-around portions 62a and 63a while the wind is prevented by the screen 61a and the rear protrusions 62b and 63b. The traveling wind hit can be appropriately distributed.

  As shown in FIGS. 3 and 4 above, troughs 62c and 63c are provided as recesses that divide the wraparounds 62a and 63a and the rear protrusions 62b and 63b. The troughs 62c and 63c Since it is formed on the surface of the cowl 62, 63 so as to extend rearward from the upper corner portions 35a, 35b of the headlight 31, it flows into the wraparound portions 62a, 63a and the rear protrusions 62b, 63b by the valley portions 62c, 63c. The traveling wind can be distributed, and the driver can feel an appropriate refreshing feeling.

  As shown in FIGS. 4 and 7, the screen 61a and the front cowl body 61e as a front cowl portion integrally provided on the screen 61a to cover at least both sides and the lower side of the headlight 31 are used as a base. A cowl 61 is formed, the base cowl 61 is fixed to the front portion of the vehicle, side cowls 62 and 63 are attached to both side surfaces of the front cowl body 61e, and a meter cover 83 is attached to the base cowl 61, side cowl 62, Since the upper opening 84 surrounded by 63 is covered, the traveling wind around the headlight 31 can be rectified by covering the periphery of the headlight 31 with a closed structure.

  As shown in FIGS. 2, 8, and 11, in the base cowl 61, the rear cover 64 that covers the rear is attached to the lower part of the rear portion thereof, and the slit 64 a is formed in the rear cover 64. The headlight 31 can be effectively discharged to the outside through the slit 64a after the headlight 31 is cooled using the traveling wind that enters from the gap formed between the headlight 31 and the base cowl 61. The cooling effect can be enhanced.

  In this embodiment, as shown in FIG. 4, the left and right side cowls 62 and 63 are separated from each other, and the side cowls 62 and 63 and the meter cover 83 are separated from each other. The side cowls 62 and 63 and the meter cover 83 may be integrally formed.

  The front cover structure of the present invention is suitable for a motorcycle.

  DESCRIPTION OF SYMBOLS 10 ... Motorcycle, 31 ... Headlight, 35a, 35b ... Upper corner part of headlight, 61 ... Base cowl, 61a ... Screen, 61e ... Front cowl part (front cowl body), 62, 63 ... Side cowl, 62a, 63a ... wraparound part, 62b, 63b ... rearward projecting part, 62c, 63c ... concave part (valley part), 64 ... rear cover, 64a ... slit, 81, 82 ... meter, 83 ... meter cover, 84 ... upper opening part.

Claims (6)

In a front cover structure of a motorcycle in which a headlight is fixed to the front of the vehicle, a screen is formed above the headlight, and side cowls are provided on the left and right so as to sandwich the headlight and the screen.
A front cover structure for a motorcycle, wherein at least a part of a rear end portion of the side cowl forms a wraparound portion that wraps around to the rear of the screen.   The front cover of a motorcycle according to claim 1, wherein a meter cover that covers the periphery of the meter is disposed behind the screen and between the left and right side cowls, and the meter cover is coupled to the wraparound portion. Construction.   3. The rear projecting portion according to claim 1, wherein a rear projecting portion is formed at a rear end portion of the screen, the rear projecting portion projecting rearward and having a shape continuous with the wraparound portion on a side of the wraparound portion. Front cover structure for motorcycles.   A recess for partitioning the wraparound portion and the rearward protrusion is provided, and the recess is formed on the surface of the side cowl so as to extend rearward from an upper corner of the headlight. The motorcycle front cover structure according to Item 3.   The front cover is formed to cover the periphery of the headlight, and is fixed to the vehicle body, a base cowl formed integrally with the screen, the side cowl formed separately from the base cowl, and the vehicle body. 5. The rear cover that covers the rear of the headlight, and the meter cover that covers the upper open space surrounded by the base cowl, the side cowl, and the rear cover. The front cover structure for a motorcycle according to any one of the preceding claims.   6. The front cover structure for a motorcycle according to claim 5, wherein the base cowl has a rear lower portion attached to the rear cover to cover the rear, and a slit formed in the rear cover.

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