JP2009006989A - Leg shield structure for motorcycles - Google Patents

Abstract

As a leg shield structure for a motorcycle, a driving wind is appropriately applied to a leg portion of a driver and a light appearance is obtained.
Leg shields (16, 17) each have a main curved surface (141) and a front inclined surface (142) extending substantially in the vehicle front-rear direction from the front of the head pipe to the main frame (37), and overlap with the main frame (37) in a side view. It has a concave curved surface 143 that curves inward in the vehicle width direction and a rear curved surface. The concave curved surface 143 makes it possible to appropriately apply the traveling wind to the driver's leg portion 15a while maintaining the straddle-like easiness of straddling as in the prior art, and the leg shields 16 and 17 can flow in the traveling wind. It becomes a shape that almost follows the shape and becomes a light appearance.
[Selection] Figure 6

Description

  The present invention relates to an improvement in a leg shield structure of a motorcycle.

As a conventional motorcycle leg shield structure, there is known a leg shield that is arranged on the front left and right sides of the vehicle body and is substantially vertically long in side view so as to cover the front of the rider's legs (for example, (See Patent Document 1).
JP 2006-96233 A

1-3 of FIG. 1 and FIG. 8 of patent document 1 are demonstrated below.
The leg shield 38 is a V-shaped cross section that is detachably attached to a pair of left and right main pipe side covers 37 that covers the main pipe 20 constituting the vehicle body frame, a part of the engine E, the air cleaner 27 and the like from the side. The leg shield 38 and the main pipe side cover 37 form a closed cross-sectional shape extending substantially downward from the side of the head pipe 16 constituting the front end of the body frame 15 and projecting to the side of the body.

  Since the front surface of the leg shield 38 is an inclined surface that retreats while spreading to the side of the vehicle body, the traveling wind that hits the leg shield 38 flows obliquely rearward to the side of the vehicle body, so the driver located behind the leg shield 38 For example, when the temperature is high in summer or the like, it is desirable that the traveling wind hits the leg appropriately in order to obtain a refreshing feeling.

  Moreover, since the leg shield 38 is substantially vertically long in a side view, it is difficult to obtain a light appearance. Further, the closed cross-sectional shape formed by the leg shield 38 and the main pipe side cover 37 occupies a large space in the front part of the vehicle body, but the inside thereof is not particularly utilized, and effective use of the space is desired.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a light appearance as a leg shield structure for a motorcycle so that a driving wind is appropriately applied to a leg portion of a driver.

  In the first aspect of the invention, the main frame extends obliquely downward and rearward from the head pipe, the engine is supported at the rear of the main frame, and a pair of left and right leg shields covering the front of the driver's legs are provided at the front of the vehicle body. In the motorcycle, the leg shield has a surface that substantially extends in the vehicle front-rear direction from the front of the head pipe to the main frame, and has a curved surface that curves inward in the vehicle width direction in a portion that overlaps the main frame in a side view. It is characterized by.

As an effect, the leg shield has a curved surface that curves inward in the vehicle width direction at a portion overlapping with the main frame in a side view, so that straddle-like strideability can be maintained as in the conventional case.
In addition, the traveling wind is easy to flow along the leg shield by the surface substantially along the vehicle longitudinal direction from the front of the head pipe to the main frame, and even if the front of the driver's legs is covered with the leg shield, It is possible to go around the driver's leg and appropriately apply the traveling wind to the leg.
Further, since the leg shield is formed long in the front-rear direction from the front of the head pipe to the main frame, it has a shape that almost follows the flow of the traveling wind and has a light appearance.

The invention according to claim 2 is characterized in that an opening is provided on the upper surface of the leg shield.
As an effect, it is possible to face the main frame and the vicinity of the leg shield from the opening, and for example, a tool is inserted below the leg shield through the opening, and the parts arranged around the main frame are maintained by this tool. .

The invention according to claim 3 is characterized in that the leg shield is disposed above the engine extending substantially horizontally in the front-rear direction in a side view.
As an effect, since the leg shield is arranged at a relatively high position of the motorcycle, the lightness of the motorcycle is increased.

The invention according to claim 4 is characterized in that a main frame cover surrounding the main frame extends to a rear edge of the leg shield, and a rear end portion of the main frame cover is coupled to a rear end portion of the leg shield.
As an operation, if the leg shield and the main frame cover are combined to form, for example, a closed cross-sectional structure, the closed cross-section can be used as an accessory case.

In the invention according to claim 1, the leg shield has a surface that substantially extends along the vehicle front-rear direction from the front of the head pipe to the main frame, and has a curved surface that curves inward in the vehicle width direction at a portion that overlaps the main frame in a side view. Therefore, the leg shield can appropriately guide the traveling wind to the driver's legs while maintaining the same level of easiness of striding as in the conventional case, and can give the driver a refreshing feeling.
Further, the leg shield has a shape that substantially follows the flow of the traveling wind, so that the motorcycle can have a light appearance.

  In the invention according to claim 2, since the opening is provided on the upper surface of the leg shield, the parts arranged around the main frame can be maintained through the opening from above the leg shield, for example, Since it is not necessary to remove the other body cover, the maintainability can be improved.

  In the invention according to claim 3, since the leg shield is disposed above the engine extending substantially horizontally in the front-rear direction in the side view, the leg shield is positioned at a relatively high position of the motorcycle. The appearance can be made lighter.

  In the invention according to claim 4, the main frame cover surrounding the main frame extends to the rear edge of the leg shield, and the rear end portion of the main frame cover is coupled to the rear end portion of the leg shield. A space between the frame cover and the frame cover can be used as a storage space for an accessory case, for example, as a closed cross-sectional structure.

The best mode for carrying out 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 motorcycle (first embodiment) that employs a leg shield structure for a motorcycle according to the present invention. The motorcycle 10 includes a vehicle body from the periphery of the bar handle 11 and below to the rear of the tandem seat 12. The vehicle is covered with a cover 13, and a pair of left and right leg shields 16, 17 that are long in the front-rear direction and covers the front of the leg portion 15 a of the driver 15 are shown at the front portion of the vehicle body cover 13. ).

  FIG. 2 is a side view of the motorcycle (the first embodiment) according to the present invention. The motorcycle 10 is steerably attached to a body frame 31 and a head pipe 32 constituting the front end of the body frame 31. The front fork 33, the bar handle 11 attached to the upper end of the steering shaft 34 constituting the front fork 33, the front wheel 36 supported on the lower end of the front fork 33 via the axle 35, and the rear from the head pipe 32 An engine 38 that extends obliquely downward and is attached to the rear portion of the main frame 37 that constitutes the vehicle body frame 31, and an intake device 43 that is connected to an upper portion of a cylinder head 42 provided in the cylinder portion 41 that constitutes the front portion of the engine 38. And an exhaust device 44 connected to the lower portion of the cylinder head 42 and a rear end portion of the main frame 37 A pivot plate 46, a swing arm 47 attached to the pivot plate 46 via a pivot shaft 46a so as to freely swing up and down, and a rear wheel 51 supported at the rear end of the swing arm 47 via an axle 48. A tandem seat 12 attached to a pair of left and right seat rails 52 and 53 (only the reference numeral 52 on the near side is shown) extending rearward and obliquely upward from the rear portion of the main frame 37, and a swing arm 47 A pair of left and right rear cushion units 56 and 57 (only front side reference numeral 56 is shown) passed between and attached between the rear portion and the seat rails 52 and 53, and the aforementioned vehicle body cover 13 covering the vehicle body. .

The vehicle body cover 13 includes a handle cover 73 including an upper cover 71 and a lower cover 72, a front cover 76 that covers the front of the head pipe 32 and the periphery of the head lamp 74, the rear of the head pipe 32, and the upper portion of the front of the main frame 37. A main frame cover 77 covering the front cover 76, leg shields 16 and 17 adjacent to the lower side of the front cover 76 and the main frame cover 77 (only the reference numeral 16 on the front side is shown), and a gap 78 below the leg shields 16 and 17. A pair of left and right lower covers 81, 82 (only reference numeral 81 on the front side is shown), and a pair of left and right center covers 83, 84 adjacent to the rear portions of the leg shields 16, 17 and the lower covers 81, 82. (Only the reference numeral 83 on the front side is shown.) And after these center covers 83 and 84 And a pair of left and right body covers 86, 87 (only the front side symbols are shown) extending rearward and obliquely upward along the side of the tandem seat 12, and a pair of left and right bodies adjacent to the lower part of the body covers 86, 87 An under cover 91, 92 (only the reference numeral 91 on the front side is shown) and a rear cover 93 connected to the rear ends of the body covers 86, 87 and surrounding the rear edge of the tandem seat 12 are included.
The leg shields 16 and 17 are disposed above the engine 38.

  The body frame 31 includes a head pipe 32, a main frame 37, a pivot plate 46, seat rails 52 and 53, and a pair of left and right sub frames 96 attached to the pivot plate 46 and the seat rails 52 and 53, respectively. , 97 (only the front side code 96 is shown).

  The engine 38 extends substantially horizontally back and forth in a side view, and a transmission 101 is integrally provided at a rear portion. A drive sprocket 102 is attached to an output shaft 101a of the transmission 101. The chain 105 is passed between the driven sprocket 103 and the driven sprocket 103 that are integrally attached to the rear wheel 51.

The intake device 43 includes an intake pipe 111 connected to an upper portion of the cylinder head 42, a carburetor 112 connected to the intake pipe 111, and an air cleaner 114 connected to the carburetor 112 via a connecting tube (not shown). The carburetor 112 is located inside the gap 78 between the leg shield 16 and the lower cover 81 and the gap 78 between the leg shield 17 and the lower cover 82, and the air cleaner 114 is attached to the main frame 37.
The exhaust device 44 includes an exhaust pipe 116 having a front end connected to the lower portion of the cylinder head 42 and a muffler 117 connected to the rear end of the exhaust pipe 116.

Here, 121 is a front fender that covers the upper side of the front wheel 36, 122 is a disc brake that brakes the front wheel 36, 123 is a stand, 124 and 125 (only the reference numeral 124 on the front side) is a driver step, and 126 and 127. (Only the reference numeral 126 on the front side is shown) is a passenger step, 131 is a tail lamp, and 132 is a rear fender.
The front fender 121 includes a ridge 135 protruding upward on the upper surface, and the position of the ridge 135 is located below the front end of the headlamp 74.

  FIG. 3 is a side view showing the vehicle body cover (first embodiment) according to the present invention (the arrow (FRONT in the figure indicates the front of the vehicle; the same applies hereinafter)) and leg shields 16 and 17 (reference numerals on the near side). 16 is provided with elongated openings 16a and 17a (only the reference numeral 16a on the near side is shown) extending substantially in the front-rear direction at the middle part in the vertical direction, and the front end is the head pipe as shown in FIG. The rear end is located above the middle portion of the main frame 37.

  In FIG. 3, on the surfaces of the leg shields 16 and 17, there are a main curved surface 141 occupying a large area, and a front inclined surface 142 that inclines inwardly toward the lower part of the front of the main curved surface 141. The concave curved surface 143 formed so as to be recessed in the main curved surface 141 and the openings 16a and 17a are formed, and adjacent to the rear portion of the concave curved surface 143 and inward of the lower portion of the main curved surface 141. And a rear curved surface 144 curved in a concave shape.

  The main frame cover 77 has a central portion 146 with a through hole through which the steering shaft 34 (see FIG. 2) is opened, and a pair of left and right forward projecting portions 147 and 148 (only the reference numeral 147 on the front side is shown). And a rear projecting portion 149 projecting obliquely downward rearward, and the rear end position of the rear projecting portion 149 coincides with the rear end position of the leg shields 16 and 17 in the front-rear direction. Reference numerals 77 a, 77 a, and 77 b are attachment portions provided on the main frame cover 77 for coupling with the leg shields 16 and 17.

  Each of the lower covers 81 and 82 (only the reference numeral 81 on the front side is shown) is formed so that the upper edge is formed in a V shape at a substantially central portion so as to widen the gap 78, and protrudes outwardly on the surface thereof. A side projecting surface 151 that is adjacent to the front edge of the side projecting surface 151, a front inclined surface 152 that inclines toward the vehicle body as it goes forward, and a rear edge of the side projecting surface 151. And a curved surface 153 that is concavely curved inward of the vehicle body. In addition, 81a and 82a (only the code | symbol 81a of the near side is shown) is the attaching part provided in the lower covers 81 and 82 in order to couple | bond with the leg shields 16 and 17, 89 is a screw for coupling | bonding.

  The center covers 83 and 84 (only the reference numeral 83 on the front side) are positioned in front of the rear ends of the leg shields 16 and 17 so that the front ends thereof block a part of the gaps 78, and the gaps 78 are extended to the side surfaces. Thus, a recess 156 extending obliquely upward rearward is formed. Reference numerals 83a and 84a (only the reference numeral 83a on the front side are shown) are mounting portions provided on the center covers 83 and 84 for coupling with the lower covers 81 and 82, 83b and 84b (only the reference numeral 83b on the front side is shown). Is a mounting portion formed on the center covers 83 and 84 for coupling with the body covers 86 and 87 (only the reference numeral 86 on the front side is shown).

  The body covers 86 and 87 are formed in a V shape so that a part of the front edge is along the lower edge of the front part of the tandem seat 12, and a boundary line 158 extending rearward and obliquely upward protrudes to the outermost surface. Is curved in a convex shape. Reference numerals 86a and 87a (only the reference numeral 86a on the front side are shown) are attachment portions provided on the body covers 86 and 87 for coupling to the vehicle body frame 31 (see FIG. 2).

Body undercovers 91 and 92 (only the reference numeral 91 on the front side is shown) are triangular in a side view, and the lower edge is curved inward of the vehicle body. Reference numerals 91a and 92a (only the reference numeral 91a on the front side are shown) are attachment portions provided on the body under covers 91 and 92 for coupling to the body covers 86 and 87.
The rear cover 93 extends rearward and obliquely in contact with the lower rear edges of the body covers 86 and 87, respectively.

  FIG. 4 is an exploded perspective view of the vehicle body cover (first embodiment) according to the present invention. The vehicle body cover 13 includes a handle cover 73 that is divided into an upper cover 71 and a lower cover 72 and a front cover of the vehicle body cover 13. A front cover 76 that constitutes a part of the vehicle, a main frame cover 77 disposed on the rear side of the front cover 76, and a front side of the driver's legs disposed below the front cover 76 and the main frame cover 77. A pair of left and right leg shields 16, 17 covering the left shield, a pair of left and right lower covers 81, 82 disposed below the leg shields 16, 17, and the rear sides of the leg shields 16, 17 and the lower covers 81, 82, respectively. A pair of left and right center covers 83, 84 disposed, and a body cover 86 disposed on the rear side of the center covers 83, 84, 7, a pair of left and right body under cover 91, 92 is connected to the lower edge after the body cover 86 and 87, and a rear cover 93 connected to the rear lower edge of the body cover 86, 87.

  FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 3, and the leg shields 16 and 17 each have an inner wall 161 extending substantially vertically and a substantially flat flat wall 162 extending laterally from the inner wall 161. The outer wall 163 extends downward from the outer edge of the flat wall 162, and openings 16 a and 17 a are formed in the flat wall 162.

  The main frame cover 77 has an upper wall 165 having a high central portion, stepped side walls 166, 166 extending downward from both ends of the upper wall 165, and sides extending laterally from respective lower ends of the stepped side walls 166, 166. The side protrusion walls 167 and 167 are formed with louvers 168.

  The louver 168 includes a plurality of baffle plates 172 extending upward from the side protruding walls 167 and 167, respectively. The plurality of baffle plates 172 are inserted into the openings 16a and 17a, and protrude upward from the openings 16a and 17a. Yes. In addition, the side protrusion walls 167 and 167 are provided with a plurality of slits (details will be described later) that are arranged alternately with the armature plates 172.

The lower covers 81 and 82 are inclined so that the lower end side is located inward of the vehicle body relative to the upper end side, and a rib 175 protruding inward of the vehicle body is formed at the upper edge.
By forming such ribs 175, the rigidity of the lower covers 81 and 82 can be improved, and the flow of traveling wind passing through the lower covers 81 and 82 can be controlled.

  FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 3, and the leg shields 16 and 17 have a large distance in the vehicle width direction between the main curved surfaces 141 and 141 provided at the front part, and a concave curve provided at the rear part. The distance between the surfaces 143 and 143 and between the rear curved surfaces 144 and 144 (refer to FIG. 3) is reduced, and the width changes in the front and rear direction with the openings 16a and 17a as a boundary. In other words, when two imaginary lines 176a and 176b that pass through the front end and the rear end of the main frame 37 and extend in the vehicle width direction are drawn, the leg shields 16 and 17 are between the imaginary lines 176a and 176b. The concave curved surfaces 143 and 143 are formed so that the width changes greatly, that is, the main frame 37 and the concave curved surfaces 143 and 143 overlap in the vehicle width direction.

  Accordingly, the front portions of the driver's legs 15a and 15a located on the lateral sides of the rear portions of the leg shields 16 and 17 are covered with the front portions of the leg shields 16 and 17, thereby fulfilling the functions of the leg shields 16 and 17.

Each of the leg shields 16 and 17 includes a front wall surface 177 extending inward in the vehicle width direction from the front end of the front inclined surface 142.
Since the louvered plate 172 of the louver 168 is directed to the side of the vehicle body, the wind that flows out from the leg shields 16 and 17 through the louver 168 does not directly hit the legs 15a.

7 is a cross-sectional view taken along line 7-7 in FIG. 3, and shows a coupling structure between the leg shield 16 and the main frame cover 77. FIG.
That is, a substantially L-shaped mounting protrusion 16 c is formed on the back surface of the leg shield 16, a mounting hole 16 d is formed in the mounting protrusion 16 c, and a screw insertion hole 77 c is formed in the surface of the main frame cover 77. As shown by the arrows, the leg shield 16 and the main frame cover 77 are coupled by passing the screw 79 through the screw insertion hole 77c and screwing it into the mounting hole 16d. The coupling structure between the leg shield 17 (see FIG. 4) and the main frame cover 77 is the same as described above.

8 is a cross-sectional view taken along line 8-8 of FIG. 3, and shows a coupling structure of the lower cover 81 and the center cover 83. As shown in FIG.
That is, a mounting projection 83c is formed on the surface of the center cover 83, a mounting hole 83d is formed in the mounting projection 83c, and a rubber 182 having a small central diameter and a through hole 181 is formed in the mounting hole 83d. The coupling pin 81c is formed on the back surface of the lower cover 81 and formed with a split groove. The coupling pin 81c is inserted into the through hole 181 of the rubber 182 as indicated by the arrow, so that the lower cover 81 and the center cover 81 are centered. The cover 83 is coupled. The coupling structure between the lower cover 82 and the center cover 84 shown in FIG. 3 is the same as described above.

FIG. 9 is a plan view of the lower cover according to the present invention (first embodiment). The lower covers 81 and 82 are disposed between the front inclined surfaces 152 and 152 and between the side projecting surfaces 151 and 151 provided at the front. The distance in the vehicle width direction is large, and the distance between the curved surfaces 153 and 153 provided at the rear is small.
Accordingly, the front portions of the driver's legs 15a and 15a located on the sides of the rear portions of the lower covers 81 and 82 are covered with the front portions of the lower covers 81 and 82, thereby functioning as a leg shield.

FIG. 10 is a front view of the motorcycle according to the present invention (first embodiment). The main frame 37, the air cleaner 114, and the cylinder part 41 of the engine 38 are arranged from the top inside the leg shields 16 and 17 and the lower covers 81 and 82, respectively. Has been placed. Reference numeral 184 denotes a head cover that closes the end of the cylinder portion 41.
In the figure, the state where the driver's legs 15a and 15a are placed on the left and right driver steps 124 and 125 is indicated by imaginary lines.

  FIG. 11 is a plan view of the front portion of the vehicle body of the motorcycle according to the present invention (first embodiment). Openings 16a and 17a are formed in the left and right leg shields 16 and 17, respectively. It shows that the louvers 168 of the main frame cover 77 face each other.

77m is a through hole for passing the steering shaft 34 (see FIG. 2), and 77n is a key cylinder mounting hole for attaching the key cylinder.
The imaginary line in the figure indicates the driver's leg 15a.

  FIG. 12 is a perspective view (first embodiment) showing a coupling structure between the leg shield and the main frame cover according to the present invention, and a plurality of mounting projections 17c are formed on the leg shield 17, and each of the mounting projections 17c is provided with each of the mounting projections 17c. A mounting hole 17d is formed, and a plurality of screw insertion holes 77c are formed in the main frame cover 77. As shown by an arrow, the screws 79 are passed through the screw insertion holes 77c and screwed into the mounting holes 17d. The shield 17 and the main frame cover 77 are coupled.

  FIG. 13 is a perspective view (first embodiment) showing a coupling structure between the center cover and the body cover according to the present invention. The center covers 83 and 84 are provided with a plurality of mounting portions 83b and 84b, and the body covers 86 and 87 A plurality of screw insertion holes 86c, 87c (only the reference numeral 87c is shown) is opened, and the screw 79 is passed through the screw insertion holes 86c, 87c and screwed into the mounting portions 83b, 84b, and the center covers 83, 84 are inserted. And body covers 86 and 87 are coupled. 84f and 84g are mounting portions formed on the center cover 84 for coupling to the center cover 83, and 86d and 87d are mounting portions formed on the body covers 86 and 87 for mounting on the vehicle body frame 31 (see FIG. 2) side. Part.

14 (a) to (d) are explanatory views showing the mating portion of the vehicle body cover (first embodiment) according to the present invention, (a) is a side view of the front portion of the vehicle body, and (b) to (d). These are sectional drawings of each position in (a).
The bb sectional view taken on the line (a) is shown in (b). The leg shield 16 is overlapped on the outer side of the main frame cover 77, and the main frame cover 77 and the leg shield 16 are joined below the opening 16 a of the leg shield 16.

  That is, a boss-like attachment portion 16f is formed on the back surface of the leg shield 16, an attachment hole 16g is formed in the attachment portion 16f, an attachment portion 77a is formed in the main frame cover 77, and a screw 79 is formed on the attachment portion 77a. A screw insertion hole 77e is formed, and the leg shield 16 and the main frame cover 77 are coupled by passing the screw 79 through the screw insertion hole 77e and screwing it into the mounting hole 16g.

  A sectional view taken along line cc of (a) is shown in (c). A mounting bracket 185 is provided on the vehicle body frame 31 (see FIG. 2), a nut 186 is fixed to the mounting bracket 185, and mounting portions 83j and 84j are formed on the left and right center covers 83 and 84, respectively. Mounting holes 83k and 84k are formed in the mounting portions 83j and 84j, respectively, a mounting portion 77g is formed in the main frame cover 77, a fitting hole 77h is formed in the mounting portion 77g, and a screw 188 is attached to the mounting hole 83k. The center cover 83, 84 is attached to the mounting bracket 185 and the left and right center covers 83, 84 are connected by passing through the mounting hole 84 k and the bolt insertion hole 185 a formed in the bracket 185 and screwing to the nut 186. The Further, the fitting hole 77 h of the attachment portion 77 g of the main frame cover 77 is fitted into the protruding portion 83 m provided in the attachment portion 83 j of the center cover 83, whereby the main frame cover 77 is coupled to the attachment bracket 185.

  A sectional view taken along line dd of (a) is shown in (d). Attachment portions 83n and 84n are formed in the center covers 83 and 84, attachment holes 83p and 84p are formed in the attachment portions 83n and 84n, and screws 191 are passed through these attachment holes 83p and 84p, respectively. The left and right center covers 83 and 84 are connected by screwing the nut 192 to each other.

15 (a) to 15 (d) are explanatory views showing the mating portion of the front portion of the vehicle body cover (first embodiment) according to the present invention, (a) is a perspective view of the front portion of the vehicle body, and (b) to (b) (D) is sectional drawing of each position in (a).
A sectional view of part b of (a) is shown in (b). (B) shows a cross section of the mating portion (upper part) between the front cover 76 and the main frame cover 77.
That is, the upper surface of the front end portion of the main frame cover 77 is applied to the lower surface of the rear end portion of the front cover 76.

A sectional view of part c of (a) is shown in (c). (C) has shown the cross section of the fitting part (upper side part) of the front cover 76 and the main frame cover 77. FIG.
That is, the groove 76a is provided at the side end of the front cover 76, and the side end of the main frame cover 77 is inserted into the groove 76a.

A sectional view of part d of (a) is shown in (d). (D) has shown the cross section of the fitting part of the leg shield 16 and the front cover 76. FIG.
That is, the flat portion 16j and the bent portion 16k disposed inside the vehicle body of the flat portion 16j are formed on the upper edge of the leg shield 16, and the lower edge of the front cover 76 is applied to the flat portion 16j. ing.

The operation of the vehicle body cover 13 described above will be described next.
FIG. 16 is a first action diagram showing the action of the vehicle body cover (first embodiment) according to the present invention.
For example, when the carburetor 112 is maintained as a component around the main frame 37, the tool 195 is moved through the slits 171 formed in the gaps 78 and 78, the openings 16 a and 17 a, and the louver 168 without removing the vehicle body cover 13. This can be carried out by inserting it into the cover 13 and, further, the insertion direction of the tool 195 can be changed depending on the maintenance position, so that maintainability can be improved.

17 (a) to 17 (c) are second operation diagrams showing the operation of the vehicle body cover (first embodiment) according to the present invention.
(A) is an operation view showing the operation of the leg shield 16, after passing through the front inclined surface 152 and the side protruding surface 151 when the traveling wind advances as indicated by the arrow on the side of the leg shield 16. The traveling wind then bends toward the curved surface 153 and hits the driver's leg 15a. The above-described operation is the same for the lower leg shield 81 (see FIG. 3).

  Compared with the conventional leg shield that covers the front of the driver's leg in a wide range, in the leg shield 16 of this embodiment, the front of the leg 15a is covered by the leg shield 16, but Due to the action, the traveling wind appropriately hits the leg portion 15a, so that a cooler feeling can be obtained than the conventional leg shield.

(B) is an operation view showing the operation of the gap 78 between the leg shield 16 and the lower cover 81 and the operation of the center cover 83.
During the operation of the engine 38, a large amount of heat is released particularly from the cylinder portion 41, and the hot air rises as indicated by an arrow and is trapped in the vehicle body cover 13. When the motorcycle starts running, the running wind enters the vehicle body cover 13 as indicated by an arrow, and then directly hits the engine 38 or, as indicated by the arrow, the leg shield 16 and the lower cover 81 together with hot air. It flows out to the outside through the gap 78 and further flows obliquely upward rearward along the recess 156 of the center cover 83 formed at the rear of the gap 78 as indicated by an arrow.
Therefore, heat flow from the engine 38 is increased by the flow of the traveling wind as described above, and cooling of the engine 38 can be promoted.

  By forming the concave portion 156 in the center cover 83, the traveling wind can easily flow out of the gap 78, more traveling wind can be discharged, and cooling of the engine can be further promoted.

FIG. 6C is an operation diagram illustrating the operation of the lower cover 82.
As shown by the arrows, when the traveling wind enters the lower cover 82, the traveling direction of the traveling wind is changed rearward and obliquely downward by the upper edge rib 175 formed in the V shape of the lower cover 82, and the cylinder of the engine 38 The cylinder part 41 is cooled by hitting the part 41. As described above, the direction of the flow of the traveling wind in the lower covers 81 and 82 can be controlled by changing the direction of the ribs 175 on the upper edges of the lower covers 81 and 82 (only reference numeral 82 is shown).

As shown in FIGS. 2, 3, and 17 (a), the present invention firstly has a main frame 37 extending obliquely downward and rearward from the head pipe 32, and an engine 38 is disposed at the rear of the main frame 37. In the motorcycle 10 that is supported and provided with a pair of left and right leg shields 16 and 17 (only the reference numeral 16 on the near side is shown) that covers the front of the leg 15a of the driver 15 at the front of the vehicle body, the leg shields 16 and 17 The head pipe 32 has a main curved surface 141 and a front inclined surface 142 that are substantially along the vehicle longitudinal direction from the front to the main frame 37, and is curved inward in the vehicle width direction at a portion overlapping the main frame 37 in a side view. Since it has the concave curved surface 143 and the rear curved surface 144 as the curved surfaces, the leg shields 16 and 17 maintain the same level of easiness of straddling as before. One traveling wind reasonably able to induce the legs 15a of the driver 15 can provide a cooling sensation to the driver 15.
Further, the leg shields 16 and 17 have a shape that substantially follows the flow of the traveling wind, so that the motorcycle 10 can have a light appearance.

  Secondly, according to the present invention, as shown in FIGS. 11 and 16, since the openings 16a and 17a are provided on the upper surfaces of the leg shields 16 and 17, the openings 16a and 17a are passed from above the leg shields 16 and 17, respectively. For example, maintenance of parts (for example, the carburetor 112) arranged around the main frame 37 can be performed, and it is not necessary to remove the leg shields 16 and 17 and other vehicle body covers, so that maintainability can be improved. it can.

  Thirdly, as shown in FIG. 2, the present invention is such that the leg shields 16 and 17 are disposed above the engine 38 extending substantially horizontally in the front-rear direction as viewed from the side. Since the motorcycle 10 is located at a relatively high position, the appearance of the motorcycle 10 can be made lighter.

  In the fourth aspect of the present invention, as shown in FIG. 2, the main frame cover 211 surrounding the main frame 37 extends to the rear edges of the leg shields 16 and 17, and the rear end of the main frame cover 211 is connected to the leg shields 16 and 17. Since it is connected to the rear end portion of 17, the space between the leg shields 16, 17 and the main frame cover 211 can be used as a storage space such as an accessory case as a closed cross-sectional structure.

FIG. 18 is a perspective view showing a vehicle body cover (second embodiment) according to the present invention. The center cover 201 is an integrated body cover 83 and body under cover 91 shown in FIG. A pair of left and right are provided.
The figure shows a state in which the body cover 86 is coupled to the center cover 201 with a plurality of screws 79.

  As described above, the center cover 201 in which the center cover 83 and the body under cover 91 are integrated can reduce the number of parts, thereby reducing the number of assembling steps and costs.

FIG. 19 is a perspective view showing a vehicle body cover (third embodiment) according to the present invention. A body under cover 203 connects the pair of left and right body under covers 91, 92 shown in FIG. A left under cover portion 204, a right under cover portion 206, and a center under cover portion 207 (a portion subjected to cross-hatching) that connects the left under cover portion 204 and the right under cover portion 206. Consists of. 203a and 203b are notches provided to prevent interference with the rear cushion units 56 and 57 (see FIG. 2).
The left under cover portion 204 corresponds to the body under cover 91 shown in FIG. 4, and the right under cover portion 206 corresponds to the body under cover 92 shown in FIG.

  In this way, by connecting the pair of left and right body undercovers 91 and 92 to form the body undercover 203, the number of parts can be reduced, the number of assembling steps and costs can be reduced, and the center The under cover portion 207 can also serve as a part of the rear fender, and the shape of the rear fender 132 shown in FIG. 2 can be simplified.

  FIG. 20 is a cross-sectional view showing a vehicle body cover (fourth embodiment) according to the present invention. The main frame cover 211 in which the front portion of the main frame cover 77 shown in FIG. By connecting to the front ends of the shields 16 and 17 with screws 79, a closed cross-sectional structure is formed with the leg shields 16 and 17, and for opening and closing the openings 16a and 17a on the leg shields 16 and 17. By providing the pair of left and right lids 213 and 214, the spaces 216 and 217 surrounded by the main frame cover 211 and the leg shields 16 and 17 can be used as storage spaces for storing small items and the like.

  Here, 221 is a hinge pin. A fixing mechanism 222 for the lids 213 and 214 includes a receiving portion 223 provided on the main frame cover 211 and an engaging portion 224 provided on the lids 213 and 214 for engaging with the receiving portion 223. .

  FIG. 21 is a cross-sectional view showing a vehicle body cover (fifth embodiment) according to the present invention. The lower cover 81, 82 (only the reference numeral 81 on the front side) described in FIG. 231 is integrally formed into a pair of left and right lower covers 233 and 234 (only the reference numeral 233 on the front side is shown) and coupled to the leg shields 16 and 17 (only the reference numeral 16 on the front side is shown).

The cover portion 231 is located behind the gap 78 and inside the driver's leg portion 15a. For example, when rainwater or the like splashes in the body cover 13 in the rain or the like, the splash May flow out from the gap 78, but in the present embodiment, by providing the cover portion 231, it is possible to make it difficult to cover the leg portion 15a with the splash, and further, the mesh (eyes) of the cover portion 231 is removed. Since the traveling wind passes through, the traveling wind hitting the leg portion 15a can be secured, and a refreshing feeling can be obtained in summer.
The cover 231 described above is not limited to the lower covers 233 and 234 but may be formed integrally with the center covers 83 and 84 shown in FIG.

  FIG. 22 is a cross-sectional view showing a vehicle body cover (sixth embodiment) according to the present invention. The engaged portions 235 and the lower surface facing the gap 78 of the leg shield 16 and the upper surface facing the gap 78 of the lower cover 81 are respectively shown. 235, and engaging portions 237 and 237 are formed on the upper and lower surfaces of the storage box 236 so as to be engaged with the engaged portions 235 and 235, respectively, and a tool is put in the storage box 236, for example. With the tool case 238 inserted, as shown by arrows, the engaging portions 237 and 237 on the upper and lower surfaces of the storage box 236 are engaged with the engaged portions 235 and 235 and attached to the gap 78, or The coupling between the joining portions 235 and 235 and the engaging portions 237 and 237 is released, and the storage box 236 is removed from the gap 78. Reference numeral 241 denotes an openable / closable lid provided in the storage box 236.

As described above, the storage box 236 is detachably attached using a part of the gap 78 between the leg shields 16 and 17 (only reference numeral 16 is shown) and the lower covers 81 and 82 (only reference numeral 81 is shown). The space of the vehicle body can be used effectively.
The storage box 236 described above is not limited to the tool case 238 and may store other small items.

FIG. 23 is a perspective view showing a main part of a vehicle body cover (seventh embodiment) according to the present invention. The same components as those in the first embodiment shown in FIGS. Omitted.
The vehicle body cover 250 covers the rear of the head pipe 32 (see FIG. 2) and the upper part of the front portion of the main frame 37 (see FIG. 2), and is adjacent to the rear edge of the front cover 76, and the front cover 76. And a pair of left and right leg shields 253 and 254 adjacent to the lower side of the main frame cover 251, and a pair of left and right lower covers 256 and 257 arranged below these leg shields 253 and 254.

  FIG. 24 is a side view showing the main part of the vehicle body cover (seventh embodiment) according to the present invention, and leg shields 253 and 254 (only the reference numeral 253 on the front side) are respectively provided in the middle part in the vertical direction. A plurality of elongated openings 253a and 254a (only the reference numeral 253a on the front side is shown) extending in the front-rear direction, and are formed so as to protrude sideways from the openings 253a and 254a to the side surface of the main frame cover 251. The fin-like convex portion 251a is exposed to the outside in a side view. A plurality of reference numerals 251b are a plurality of side openings opened on the side surface of the main frame cover 251 so as to be linearly arranged rearward and downward. A plurality of reference numerals 251b are arranged along the direction in which the side openings 251b are arranged. The plurality of fin-like convex portions 251a are provided below the side opening 251b.

  Lower covers 256 and 257 (only the front side reference numeral 256 is shown) are arranged on the leg shields 253 and 254 via gaps 261 and 262 (only the front side reference numeral 261 is shown), and so as to close the gap 261. At the upper part of the lower covers 256 and 257, there are mounting portions 256a and 257a (only the reference numeral 256a on the front side is shown) for coupling to the leg shields 253 and 254, and obliquely forward and upward so as to protrude to the leg shields 253 and 254 side. Cover portions 256b and 257b (only the reference numeral 256b on the front side are shown) are formed integrally with the extended ends and the tip portions positioned inward of the leg shields 253 and 254.

  Since the cover portions 256b and 257b are located obliquely forward inside the driver's leg portion 15a, for example, when rainwater or the like splashes and scatters in the vehicle body cover 250 during rainy weather, the cover portions 256b and 257b are covered. Therefore, it is possible to make it difficult to apply the splash to the leg portion 15a.

  25 is a cross-sectional view taken along line 25-25 of FIG. 24. Step portions 256d and 257d are formed on the upper portions of the lower covers 256 and 257, and cover portions 256b and 257b are covered upward from the inner ends of these step portions 256d and 257d. The upper ends 256e and 257e of the cover portions 256b and 257b are curved inward in the vehicle width direction, and protrude upward from the lower ends 253c and 254c of the leg shields 253 and 254. Reference numeral 264 denotes a line segment connecting the tips of the lower end portions 253c and 254c of the leg shields 253 and 254.

  26 is a cross-sectional view taken along the line 26-26 of FIG. 24, and a gap between the upper ends 256e and 257e of the lower covers 256 and 257 and the lower ends 253c and 254c of the leg shields 253 and 254 is a distance d. 266 and 267 are provided.

  These gaps 266 and 267 are portions for allowing the traveling wind to flow from the inside to the outside of the vehicle body cover 250, as in the gaps 261 and 262 (see FIG. 20 for the reference numeral 261). Since the projected area on the vertical plane along the width direction is increased, the amount of running wind can be increased, and the amount of running wind that hits the legs of the driver can be increased to enhance the refreshing feeling.

27 is a cross-sectional view taken along line 27-27 in FIG. 24, and the air cleaner 114 is disposed between the left and right leg shields 253 and 254. FIG.
The air cleaner 114 includes an air cleaner case main body 271, an air cleaner case cover 272 that closes the opening of the air cleaner case main body 271, and an air cleaner element 273 that is attached to a joint portion between the air cleaner case main body 271 and the air cleaner case cover 272.

  The air cleaner case main body 271 includes a baffle plate 271a that protrudes in the vehicle width direction in order to change the flow of the traveling wind. Specifically, the air cleaner case main body 271 includes a left protruding portion 271b and a right protruding portion 271c that protrude left and right that constitute the baffle plate 271a.

  The baffle plate 271a protrudes outward in the vehicle width direction from the front end portions 253e and 254e forming the open portions 275 of the left and right leg shields 253 and 254. In addition, the code | symbols 277 and 278 in a figure are the straight lines which pass the front-end parts 253e and 254e, and are extended in a vehicle front-back direction.

Thus, by extending the baffle plate 271a of the air cleaner 114 to the outside in the vehicle width direction with respect to the width of the opening 275, a gap 281 in the vehicle width direction between the baffle plate 271a and the inner surfaces of the leg shields 253 and 254 is obtained. In addition to narrowing 282, the left and right air passages 283 and 284 extending from the opening 275 to the rear of the air cleaner 114 can be bent, and the flow direction of the traveling wind taken from the opening 275 is changed to Can be lowered.
As a result, air can be easily taken into the air cleaner 114 from the air inlet provided on the upper back surface of the air cleaner 14.

  The leg shield structure of the present invention is suitable for a motorcycle.

1 is a side view of a motorcycle (first embodiment) employing a leg shield structure for a motorcycle according to the present invention. 1 is a side view of a motorcycle (first embodiment) according to the present invention. It is a side view which shows the vehicle body cover (1st Embodiment) which concerns on this invention. It is a disassembled perspective view of the vehicle body cover (1st Embodiment) which concerns on this invention. FIG. 5 is a sectional view taken along line 5-5 of FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG. FIG. 7 is a sectional view taken along line 7-7 in FIG. 3. FIG. 8 is a sectional view taken along line 8-8 in FIG. 3. It is a top view (1st Embodiment) of the lower cover which concerns on this invention. 1 is a front view of a motorcycle (first embodiment) according to the present invention. 1 is a plan view of a front portion of a vehicle body of a motorcycle (first embodiment) according to the present invention. It is a perspective view (1st Embodiment) which shows the coupling structure of the leg shield and main frame cover which concern on this invention. It is a perspective view (1st Embodiment) which shows the coupling structure of the center cover and body cover which concern on this invention. It is explanatory drawing which shows the matching part of the vehicle body cover (1st Embodiment) which concerns on this invention. It is explanatory drawing which shows the matching part of the front part of the vehicle body cover (1st Embodiment) which concerns on this invention. FIG. 5 is a first action diagram showing an action of the vehicle body cover (first embodiment) according to the present invention. It is a 2nd operation | movement figure which shows the effect | action of the vehicle body cover (1st Embodiment) based on this invention. It is a perspective view which shows the vehicle body cover (2nd Embodiment) which concerns on this invention. It is a perspective view which shows the vehicle body cover (3rd Embodiment) based on this invention. It is sectional drawing which shows the vehicle body cover (4th Embodiment) based on this invention. It is sectional drawing which shows the vehicle body cover (5th Embodiment) which concerns on this invention. It is sectional drawing which shows the vehicle body cover (6th Embodiment) based on this invention. It is a perspective view which shows the principal part of the vehicle body cover (7th Embodiment) which concerns on this invention. It is a side view which shows the principal part of the vehicle body cover (7th Embodiment) which concerns on this invention. FIG. 25 is a sectional view taken along line 25-25 in FIG. 24. It is the 26-26 sectional view taken on the line of FIG. FIG. 27 is a sectional view taken along line 27-27 in FIG. 24.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Motorcycle, 15 ... Driver, 15a ... Leg part, 16, 17, 253, 254 ... Leg shield, 16a, 17a ... Opening part, 37 ... Main frame, 38 ... Engine, 211 ... Main frame cover.

Claims (4)

In the motorcycle in which the main frame extends obliquely downward and rearward from the head pipe, the engine is supported at the rear of the main frame, and a pair of left and right leg shields covering the front of the driver's legs are provided at the front of the vehicle body,
The leg shield has a surface that substantially extends in the vehicle front-rear direction from the front of the head pipe to the main frame, and has a curved surface that curves inward in the vehicle width direction in a portion that overlaps the main frame in a side view. The leg shield structure of the motorcycle.   2. The leg shield structure for a motorcycle according to claim 1, wherein an opening is provided on an upper surface of the leg shield.   The leg shield structure for a motorcycle according to claim 1 or 2, wherein the leg shield is disposed above an engine extending substantially horizontally in the front-rear direction in a side view.   The motorcycle according to claim 3, wherein a main frame cover surrounding the main frame extends to a rear edge of the leg shield, and a rear end portion of the main frame cover is coupled to a rear end portion of the leg shield. Leg shield structure.

Images