JPWO2013121597A1 - Front fender structure in motorcycles - Google Patents

Abstract

The front fender can be moved close to and away from the front wheel, and the front fender is placed below the up fender so as to cover the front wheel from the top behind the front fork, and the vertical relative position to the front wheel is constant. In a motorcycle constituted by a fender, an up fender (46) extends over the front fork (11) in a plan view so that its rear part overlaps the front part of the down fender (47) and is occupant riding The lower edge (46b) of the rear end of the up fender (46) at the time is formed to be positioned below the upper edge (47c) of the front end of the down fender (47). Thereby, the scattering of mud and water to the passenger | crew side can be reduced by the mutual function of an up fender and a down fender.

Description

  In the present invention, a front fender that covers a front wheel from above is supported by a front fork having a pair of left and right legs that pivotally support the front wheel at its lower end so as to be able to approach and separate from the front wheel, and at least in front of the front fork And the front fork that is disposed below the up fender so as to cover the front wheel from above at the rear of the front fork and has a constant vertical relative position to the front wheel. In particular, the present invention relates to an improvement in a front fender structure.

  Patent Document 1 discloses a motorcycle in which a front fender is configured by an up fender that covers a front wheel from above and a down fender that is below and behind the up fender and covers a front wheel from above.

Japanese Patent No. 4031502

  However, in the one disclosed in Patent Document 1, the up fender is formed so as to cover the front wheel from above in front of the front fork leg, and the down fender to cover the front wheel from above in front of the front fork leg. In order to sufficiently prevent water and mud from splashing from the front wheels, there is a demand for extending the up fender further to the rear than the legs of the front fork. However, the up fender is supported by the front fork so that it can be moved closer to and away from the front wheel, whereas the down fender is supported by the front fork with a fixed vertical relative position to the front wheel. The positional relationship between the up fender and the down fender is important for efficiently reducing mud scattering to the passenger side. Alternatively, in a structure in which the rear part of the up fender is simply extended rearward from the leg part of the front fork, it is necessary to consider mutual interference between the rear part of the up fender and the front part of the down fender.

  The present invention has been made in view of such circumstances, and it is possible to reduce the scattering of mud and water to the occupant side by the mutual function of the up fender and the down fender, or the mutual between the up fender and the down fender. It is an object of the present invention to provide a front fender structure in a motorcycle that can avoid interference.

  In order to achieve the above object, according to the present invention, a front fender that covers a front wheel from above is supported by a front fork having a pair of left and right legs that pivotally support the front wheel at its lower end so as to be able to approach and separate from the front wheel. And an up fender that covers the front wheel from above at least in front of the front fork, and is disposed below the up fender so as to cover the front wheel from above at the rear of the front fork and is vertically oriented with respect to the front wheel. In a motorcycle constituted by a down fender supported by the front fork with a fixed relative position, the up fender is arranged in front and rear of the front fork so that its rear part overlaps the front part of the down fender in plan view. Of the up fender when To that end the lower edge is formed so as to be positioned below the front upper edge of the down fender first feature.

  According to the present invention, in addition to the configuration of the first feature, curved side wall portions that are recessed inward in the width direction so as to avoid the pair of left and right legs and have an arcuate cross section are provided on both left and right sides of the up fender. And a pair of left and right side walls that are integrally provided on both the left and right sides of the ceiling wall part, and the down fender has an arcuate transverse cross-sectional shape that swells upward and faces the front wheel from above To prevent the curved side wall portion of the up fender from interfering with the front portion of the down fender when the up fender is close to the front wheel. A second feature is that the escape recess is formed so as to be recessed rearward from the upper part of the pair of left and right side wall parts to the ceiling wall part.

  In the present invention, in addition to the configuration of the second feature, on the upper surface of the front portion of the ceiling wall portion, when the up fender comes close to the front wheel, a part of both sides of the rear portion of the up fender can be accommodated downward. A third feature is that a pair of recessed left and right recesses are formed extending in the front-rear direction.

  In addition to any of the configurations of the first to third features, the present invention has a fourth feature in that a protrusion projecting downward is provided on the lower surface of the front end portion of the down fender.

  In addition to the configuration of the fourth feature, the fifth feature of the present invention is that the protrusion is configured by a part of a stay for fixing the down fender to a leg portion of the front fork. .

  In addition to any of the configurations of the first to fifth features, the present invention is positioned on the vehicle body frame behind the rear portion of the up fender and above the lower edge of the rear end of the up fender in a side view. The sixth feature is that the electrical component is attached.

  According to the present invention, in addition to any one of the first to sixth features, the down fender is formed such that a rear end lower edge is positioned below a rotation axis of the front wheel. It is characterized by.

  According to the present invention, in addition to any one of the first to seventh features, the rear part of the down fender is formed so as to increase the width along the vehicle width direction downward. It is characterized by.

  According to a ninth feature of the present invention, in addition to any of the first to eighth features, a rib extending in the vehicle width direction is provided on the lower surface of the up fender in front of the down fender. To do.

  According to the tenth aspect of the present invention, in addition to any of the configurations of the first to ninth features, a wing-shaped rectifying plate is provided at a rear end portion of the down fender on the left and right sides from the down fender. It is characterized by.

  According to the present invention, in addition to the configuration of the tenth feature, when the louver having a plurality of blades and having a flow hole between the blades is viewed from the front wheel side, the rectifying plate has a plurality of blades. An eleventh feature is that the slats are provided so as to cover the flow holes.

  In addition to any of the configurations of the first to eleventh features, the present invention provides a pair of left and right legs covering the pair of left and right legs from the front in front of the pair of left and right legs included in the front fork and the down fender. A twelfth feature is that the air guide member is fixedly arranged so as to guide the traveling wind from the front to the engine side behind the both leg portions.

  Furthermore, in addition to the configuration of the twelfth feature, the present invention provides a front projection in which a side view shape of the air guide member projects forward, an upper inclined portion extending rearwardly from the front projection, and the front A thirteenth feature is that it is formed in a substantially V-shape having a downwardly inclined portion extending downward from the protrusion.

  According to the first feature of the present invention, the up fender extends over the front fork so that the rear part of the up fender overlaps the front part of the down fender in plan view, and the rear side of the up fender when the passenger rides. Because the lower edge is located below the upper edge of the down fender, even if water or mud splashed from the front wheel splashes backward from the front edge of the down fender, the mud or water at the rear edge of the up fender And water and mud repelled from the front wheels can be prevented as much as possible from reaching the occupant side.

  Further, according to the second feature of the present invention, curved side wall portions that are recessed inward in the width direction and have an arcuate cross section so as to avoid a pair of left and right legs provided in the front fork are provided on both left and right sides of the up fender. However, when the up fender comes close to the front wheel, a relief recess is formed in the front part of the down fender so as to prevent both curved side walls of the up fender from interfering with the front part of the down fender. And while preventing the mutual interference of the down fender, the up fender can be made as close as possible to the down fender side to sufficiently prevent the splashing of water and mud from the front wheel.

  According to the third feature of the present invention, the pair of left and right recesses formed on the front upper surface of the ceiling wall portion of the down fender can accommodate a part of both sides of the rear portion of the up fender when close to the front wheel. Therefore, the up fender can be brought closer to the down fender side while preventing mutual interference between the up fender and the down fender, and the splash of water and mud from the front wheel can be sufficiently prevented.

  According to the fourth feature of the present invention, since the protrusion is provided on the lower surface of the front end of the down fender so as to protrude downward, the space between the down fender and the front wheel is reduced in the portion where the protrusion is provided. Thus, it is possible to prevent mud or the like that scatters forward as the front wheels rotate during traveling from the front end of the down fender to the upper surface side and contaminating the upper surface of the down fender.

  According to the fifth feature of the present invention, since the protrusion is constituted by a part of the stay for fixing the down fender to the leg portion of the front fork, without changing the shape of the bottom surface of the down fender, The effect of the fourth feature can be obtained.

  According to the sixth aspect of the present invention, the electrical component attached to the vehicle body frame is covered from the front by the rear part of the up fender to prevent water and mud splashing from the front wheel from adhering to the electrical component. it can.

  According to the seventh feature of the present invention, the lower edge of the rear end of the down fender is disposed below the rotational axis of the front wheel, so that mud and water splashed rearward from the front wheel are scattered to the engine and the passenger side. Can be suppressed as much as possible by the rear end of the down fender.

  According to the eighth feature of the present invention, since the rear part of the down fender is formed so as to expand toward the bottom, mud and water splashed rearward from the front wheels are scattered to the engine and the occupant side. It can be effectively suppressed at the rear of the down fender.

  According to the ninth feature of the present invention, the rib positioned forward of the down fender is provided on the lower surface of the up fender so as to extend in the vehicle width direction. It is possible to prevent mud and the like adhering to the inner surface of the up fender from scattering backward, and to prevent mud from reaching the occupant.

  According to the tenth feature of the present invention, since the wing-shaped rectifying plate projects from the rear end portion of the down fender to the left and right sides, the mudguard performance is improved by expanding the rear end of the down fender in the vehicle width direction. Can be increased.

  According to the eleventh feature of the present invention, since the rectifying plate is provided with the louver, the traveling wind can be guided to the engine side, and the plurality of flow holes of the louver are covered with the slats when viewed from the front wheel side. Therefore, it is possible to prevent mud or the like from the front wheel side from reaching the engine side through the flow hole.

  According to the twelfth feature of the present invention, the pair of left and right wind guide members covering the pair of left and right legs provided in the front fork from the front guide the traveling wind from the front to the engine side behind the both legs. Since it is fixedly arranged in front of the down fender, the traveling wind can be flowed to the engine side behind the down fender.

  Further, according to the thirteenth feature of the present invention, since the air guide member has a V-shaped shape directed forward in a side view, the wind guide member is provided with sufficient durability against running wind. be able to.

FIG. 1 is a side view of a motorcycle. (First embodiment) FIG. 2 is an enlarged view of the vicinity of the front fork in FIG. (First embodiment) 3 is a cross-sectional view taken along line 3-3 of FIG. (First embodiment) 4 is a cross-sectional view taken along line 4-4 of FIG. (First embodiment) 5 is a cross-sectional view taken along line 5-5 of FIG. (First embodiment) FIG. 6 is a perspective view of the down fender. (First embodiment) FIG. 7 is a view corresponding to FIG. 2 in the passenger boarding state. (First embodiment) FIG. 8 is a front side view of the motorcycle with the front fork fully contracted. (First embodiment) FIG. 9 is a view taken in the direction of arrow 9 in FIG. (First embodiment) FIG. 10 is a side view of FIG. (First embodiment) FIG. 11 is a perspective view of the headlight stay. (First embodiment) FIG. 12 is a view corresponding to FIG. 7 in a state in which the lower edge of the rear end of the up fender is located above the upper edge of the front edge of the down fender in the passenger riding state. (First embodiment) FIG. 13 is a side view corresponding to FIG. 2 of the second embodiment. (Second Embodiment) 14 is a cross-sectional view taken along line 14-14 of FIG. (Second Embodiment) FIG. 15 is a rear view of the down fender according to the third embodiment. (Third embodiment) FIG. 16 is a perspective view of a down fender according to the fourth embodiment. (Fourth embodiment) FIG. 17 is a view taken in the direction of arrow 17 in FIG. (Fourth embodiment)

11. Front fork 35 ... Leg 45 ... Front fender 46 ... Up fender 46a ... Curved side wall 46b ... Rear end lower edge 47 of up fender ... Down fender 47a .. Ceiling wall part 47b ... Side wall part 47c ... Down fender front end upper edge 47d ... Down fender rear end lower edge 52 ... Escape recess 55 ... Stay 62 ... Projection 63 ... Rib 65 ... Air guide member 65a ... Front protrusion 65b ... Upper inclined part 65c ... Lower inclined part 88 ... Current plate 89 ... Louver 89a ... Blade 90 ... circulation hole 94 ... concave 95 ... electric component horn C ... front wheel rotation axis E ... engine WF ... front wheel

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First embodiment

  A first embodiment of the present invention will be described with reference to FIGS. 1 to 12. First, in FIG. 1, a body frame F of this motorcycle operates a front fork 11 that pivotally supports a front wheel WF at its lower end. The head pipe 12 that supports the head pipe 12 and the front half inclined portion 13a that extends slightly rearward from the head pipe 12 and the second half inclined portion that is steeper than the front half inclined portion 13a and extends downward from the rear end of the front half inclined portion 13a. A main pipe 13 having 13b, a down pipe 14 that is inclined at a steeper angle than the front half inclined portion 13a of the main pipe 13 and extends rearwardly downward from the head pipe 12, and a lower portion of the rear half inclined portion 13b of the main pipe 13 A pair of left and right rear pipes 15 extending rearward from the rear, and a rear end of the front half inclined portion 13a of the main pipe 13 and Comprises a connecting pipe 16 ... and connecting between the rear pipe 15 ... intermediate portion of.

  On the body frame F, an engine body 18 of the engine E is supported at the lower part of the rear half inclined part 13b of the main pipe 13 via an engine hanger (not shown) and provided at the lower part of the down pipe 14. It is mounted so as to be supported by the engine hanger 17. A fuel tank 19 is disposed above the engine body 18 so as to straddle the front half inclined portion 13a of the main pipe 13 in the vehicle body frame F. The fuel tank 19 includes a front end portion of the front half inclined portion 13a in the main pipe 13 and The down pipe 14 is supported by a stiffener 91 extending between upper tambs via a rubber 92. A tandem riding seat 20 is disposed behind the fuel tank 19 so as to be supported by the rear pipes 15 in the body frame F.

  The engine body 18 includes a crankcase 22 that rotatably supports a crankshaft 21 having an axis along the vehicle width direction, a cylinder block 23 that is coupled to a front upper portion of the crankcase 22 and rises upward, and the cylinder block The cylinder head 24 is coupled to the upper end of the cylinder 23, and the head cover 25 is coupled to the upper end of the cylinder head 24.

  A transmission case 26 extending rearward is connected to the lower portion of the engine body 18, that is, the crankcase 22, and a transmission (for shifting the rotational power from the crankshaft 21) is provided in the transmission case 26. (Not shown) is accommodated, and an output shaft 27 is rotatably supported on the mission case 26.

  In the pair of left and right pivot frames 93... Connected to the lower part of the rear half inclined portion 13 b of the main pipe 13 of the body frame F, the front end of the swing arm 28 that pivotally supports the rear wheel WR at the rear end supports the support shaft 29. The rear cushion unit 30 is provided between the rear pipe 15 of the vehicle body frame F and the rear portion of the swing arm 28.

  Rotational power is transmitted from the output shaft 27 to the rear wheel WR. The drive sprocket 31 is fixed to the projecting end portion of the output shaft 27 from the transmission case 26, and is provided on the axle of the rear wheel WR. An endless chain 33 is wound around the driven sprocket 32.

  2 to 4, the front fork 11 connects a pair of left and right leg portions 35, 35 that pivotally support the front wheel WF at the lower end portion, and upper end portions of the leg portions 35. A top bridge 36 (see FIG. 1) and a bottom bridge 37 for connecting the legs 35 below the top bridge 36 are provided. The top bridge 36 and the bottom bridge 37 sandwich the head pipe 12 from above and below. The steering shaft 38 is provided between the top bridge 36 and the bottom bridge 37 by being inserted into the head pipe 12 so as to be steerably supported by the head pipe 12. Further, a central portion in the longitudinal direction of a bar-shaped steering handle 39 (see FIG. 1) is attached to the top bridge 36.

  The leg portion 35 is constituted upright by an inner tube 40 fixed to the top bridge 36 and the bottom bridge 37 and an outer tube 41 into which a lower portion of the inner tube 40 is fitted. A bellows-like boot 42 is provided between the lower part of 40 and the upper part of the outer tube 41, and a buffer mechanism is built in the leg part 35. Further, the axle 43 (see FIG. 1) of the front wheel WF is supported between the lower end portions of the outer tubes 41.

  The front wheel WF is covered with a front fender 45 from above, and the front fender 45 includes an up fender 46 that covers the front wheel WF from above, and a lower side of the up fender 46 that covers the front wheel WF from above. And a down fender 47 arranged in In addition, the up fender 46 is formed to extend over the front fork 11 so as to cover the front wheel WF from above so that the rear portion of the up fender 46 overlaps the front portion of the down fender 47 in plan view.

  The up fender 46 has an arcuate cross section that swells upward, and a pair of bolts 48, 48 arranged in the vehicle width direction are inserted into the up fender 46 from below through a collar (not shown). At the same time, a bolt 50 screwed into the front portion of the bottom bridge 37 in the front fork 11 and inserted from below into the up fender 46 through a collar (not shown) is a central portion in the vehicle width direction at the rear portion of the bottom bridge 37. Are fixed to the bottom bridge 37 by being screwed together. Thus, since the bottom bridge 37 can approach and separate from the front wheel WF, the up fender 46 is supported by the front fork 11 so as to be able to approach and separate from the front wheel WF.

  Further, on both the left and right sides of the up fender 46, an arcuate cross section is formed by recessing inward in the width direction so as to avoid a portion of the pair of left and right legs 35 provided in the front fork 11 where the boots 42 are provided. The curved side wall portions 46a and 46a are provided.

  Referring to FIGS. 5 and 6, the down fender 47 has a ceiling wall portion 47 a having an arcuate cross-sectional shape bulging upward and facing the front wheel WF from above, and the ceiling wall portion 47 a. And a pair of left and right side wall portions 47b, 47b that are integrally connected to the left and right sides of the front fender 11 and formed in a substantially U-shaped cross section. Are supported by outer tubes 41 of both leg portions 35. Thus, since the outer tubes 41 have a fixed vertical relative position with respect to the front wheel WF, the down fender 47 is supported by the front fork 11 with a fixed vertical relative position with respect to the front wheel WF. Become.

  Thus, the up fender 46 that can move toward and away from the front wheel WF extends across the front fork 11 such that the rear portion of the up fender 46 overlaps the front portion of the down fender 47 in plan view. Since the down fender 47 formed in the above and having a constant vertical relative position with respect to the front wheel WF is disposed below the up fender 46 so as to cover the front wheel WF from above at the rear of the front fork 11, When the occupant gets on the seat 20, as shown in FIG. 7, the leg portions 35, which can be expanded and contracted vertically, contract, and the up fender 46 approaches the down fender 47. At this time, the up fender 46 is formed so that the lower edge 46 b of the rear end of the up fender 46 is positioned below the upper edge 47 c of the front end of the down fender 47. That is, the rear end lower edge 46b of the up fender 46 is disposed below the horizontal line L1 passing through the front end upper edge 47c of the down fender 47 when the passenger gets on.

  In this embodiment, an occupant having a weight of 40 kg or more is assumed as an occupant. Therefore, when the front fork 11 contracts when an occupant having a weight of 40 kg or more gets on, the rear lower edge 46b of the up fender 46 and The relative position in the vertical direction of the front edge 47c of the front end of the down fender 47 has the above-described relationship.

  The down fender 47 is formed such that a rear end lower edge 47d is positioned below the rotation axis C of the front wheel WF, that is, the center axis of the axle 43 of the front wheel WF, and a horizontal line L2 passing through the rotation axis C. The lower edge 47d of the rear end of the down fender 47 is disposed below the lower end.

  As shown in FIG. 8, the leg portions 35 of the front fork 11 are provided on the left and right sides of the up fender 46 so as to be recessed inward in the width direction so as to avoid the leg portions 35 when contracted to the maximum. The curved side wall portions 46a are close to the front portion of the down fender 47. Therefore, in order to avoid interference between the front portion of the down fender 47 and the curved side wall portion 46a, a ceiling wall portion 47a and a pair of left and right side wall portions 47b, 47b integrally connected to the left and right sides of the ceiling wall portion 47a are provided. The front side of the down fender 47 has a relief recess 52 that is recessed rearward from the upper part of the side wall part 47 b to the ceiling wall part 47 a, and the curved side wall part 46 a ... interferes with the front part of the down fender 47. It is formed so as to avoid this.

  In addition, the upper surface of the front portion of the ceiling wall portion 47a of the down fender 47 has left and right recesses that are recessed downward so that a part of both sides of the rear portion of the up fender 46 can be accommodated when the up fender 46 is close to the front wheel WF. A pair of recesses 94, 94 are formed extending in the front-rear direction.

  A horn 95, which is an electrical component, is attached to the down pipe 14 of the vehicle body frame F behind the rear portion of the up fender 46 so as to be located above the lower edge 46b of the rear end of the up fender 46 in a side view. .

  In order to support the down fender 47, the outer tube 41 of the leg portion 35 of the front fork 11 has a first support protrusion 53 protruding forward from a front part near the upper end thereof, and a first support protrusion. Second support protrusions 54 projecting rearward from the rear part above the parts 53 are projected.

  A stay 55 is fastened to the first support protrusion 53... And the second support protrusion 54. The front end of the down fender 47 is supported by the outer tube 41 through the stay 55.

  The stay 55 has a pair of left and right support plate portions 55a and 55a, the front end portion of which is fastened to the first support protrusions 53 and extends around the outer tube 41 inward in the vehicle width direction and extends rearward. A pair of left and right rising plates 55b, 55b that rise upward from the rear end of the support plate 55a ... behind the legs 35 ... and face the inner surface of the side wall 47b ... in the down fender 47, and both rising plates The upper ends of the portions 55b... Are connected so as to integrally have an arc-shaped connecting plate portion 55c that is close to and faces the inner surface of the ceiling wall portion 47a of the down fender 47.

  First weld nuts 56, 56 are fixed to the front end portions of the support plate portions 55a, and bolts 57, 57 inserted through the first support projections 53 are screwed into the first weld nuts 56,. As a result, the front end portions of the support plate portions 55a, that is, the front end portions of the stays 55 are fastened to the first support protrusions 53.

  Further, the rear end of the support plate 55a has second flanges 58a and 58a sandwiched between the lower inner surface of the front end of the side wall 47b of the down fender 47 and the rear end outer surface of the support plate 55a. Weld nuts 58, 58 are fixed, and bolts 59, 59 inserted through lower front ends of the side wall portions 47b are screwed into the second weld nuts 58 and tightened to tighten the front ends of the side wall portions 47b. The lower part is fastened to the stay 55.

  Further, at the upper end portion of the rising plate portions 55b and 55b at the portion corresponding to the second support protrusion 54, the inner surface of the upper end of the front end of the side wall portion 47b of the down fender 47 and the outer surface of the upper end portion of the rising plate portions 55b and 55b. Third weld nuts 60, 60 having flanges 60a, 60a sandwiched between them are fixed, and second support protrusions 54 sandwiching the front end upper portion of the side wall 47b ... between the flanges 60a ... And the bolts 61, 61 inserted through the upper front ends of the side wall portions 47b... Are screwed into the third weld nuts 60 and tightened so that the upper end portions of the rising plate portions 55b. The upper front end of 47b is fastened to the second support protrusions 54 by fastening together.

  A projection 62 projecting downward is provided on the lower surface of the front end portion of the down fender 47, and the projection 62 is formed by a rising plate portion 55b... And a connecting plate portion 55c which are part of the stay 55. Composed. A rib 63 extending in the vehicle width direction is provided on the lower surface of the up fender 46 in front of the down fender 47.

  9 to 11 together, a headlight stay 70 is supported on the top bridge 36 and the bottom bridge 37 of the front fork 11, and the headlight stay 70 is connected to the main pipe. 71, a lower mounting plate 72 to which the main pipe 71 is mounted, a pair of left and right sub pipes 73, 73 having one end fixed to the main pipe 71, and a support plate 74 fixed to an intermediate portion between the two sub pipes 73,. 74 and an upper mounting plate 75 to which the other ends of the sub-pipes 73 are fixed in common.

  The main pipe 71 includes a curved portion 71a formed in a substantially U shape that opens downward, and a pair of left and right arm portions 71b and 71b extending from the lower ends of both ends of the curved portion 71a toward the bottom bridge 37 of the front fork 11. It is formed so as to have a single body. Further, one end of each of the pair of left and right sub pipes 73 and 73 is fixed to an intermediate portion on both the left and right sides of the curved portion 71 a and extends to the top bridge 36 side of the front fork 11. , 71b are fixed to the lower mounting plate 72, and the other ends of the sub-pipes 73 are fixed to the upper mounting plate 75.

  The lower mounting plate 72 is brought into contact with the upper surface of the bottom bridge 37 from above, and is fixed to the lower mounting plate 72 and includes a pair of pins 76 and 76 protruding downward from the lower mounting plate 72. The lower part is inserted into a pair of insertion holes 77 and 77 (see FIG. 3) provided in the bottom bridge 37. On the other hand, the upper mounting plate 75 is brought into contact with the lower surface of the top bridge 36 from below, and is fixed to the upper mounting plate 75 and protrudes downward from the upper mounting plate 75. The upper part of 78 is inserted into a pair of insertion holes (not shown) provided in the top bridge 36. As a result, the headlight stay 70 is supported on the top bridge 36 and the bottom bridge 37 of the front fork 11.

  Insertion holes 79 are provided in the front portion of the support plate 74, and both side surfaces of the headlight 80 arranged in the curved portion 71 a of the main pipe 71 are inserted into the insertion holes 79. The supporting plate 74 is supported by the bolts 81. Further, mounting holes 82 and 82 are provided in the rear portion of the support plate 74, and turn signals 83 and 83 arranged on the left and right sides of the headlight 80 are formed in the support plate 74 using the mounting holes 82. Mounted.

  Further, an instrument support stay 84 is provided between the sub pipes 83 so as to be positioned behind the headlight 80, and an instrument unit 85 disposed obliquely above and behind the headlight 80 includes the instrument support. It is supported by a stay 84 and the top bridge 36.

  Next, the operation of the first embodiment will be described. The front fender 45 that covers the front wheel WF from above is covered by the front fender 45 that covers the front wheel WF from above and the front relative to the front wheel WF at a constant vertical position relative to the front wheel WF. An up fender 46 configured in cooperation with the down fender 47 supported by the fork 11 extends over the front fork 11 such that the rear portion of the up fender 46 is superimposed on the front portion of the down fender 47 in plan view. The front fender 46 is formed so as to cover the front wheel WF from above and is supported by the front fork 11 so as to be able to approach and separate from the front wheel WF, and the rear lower edge 46b of the up fender 46 when the occupant is on the front upper edge of the down fender 47 Since it is located below 47c, water repelled from the front wheel WF As shown by the arrows in FIG. 7, even if the fender 47 scatters rearward from the front end of the down fender 47, the rear end of the up fender 46 can receive the mud and water, and the water and mud repelled from the front wheel WF. Can be prevented as much as possible from reaching the passenger side.

  On the other hand, as shown in FIG. 12, the rear end lower edge 46 ′ b of the up fender 46 ′ in which the front fender 45 ′ is configured in cooperation with the down fender 47 is a front end upper edge 47 c of the down fender 47. If the rear end lower edge 46'b of the up fender 46 'is above the horizontal line L1 passing through the front end upper edge 47c of the down fender 47, it will repel from the front wheel WF. When the raised water or mud scatters backward from the front end of the down fender 47 as shown by the arrow in FIG. 12, water or mud that cannot be received at the rear end of the up fender 46 'scatters to the passenger side. As described above, when the lower edge 46b of the rear end of the up fender 46 is positioned below the upper edge 47c of the front end of the down fender 47 when the occupant is in the vehicle, Water or mud is can be prevented as much as possible from reaching the passenger side.

  Further, curved side wall portions 46a, 46a, which are recessed inward in the width direction so as to avoid the pair of left and right legs 35 provided in the front fork 11 and have a cross-sectional arc shape, are provided on both left and right sides of the up fender 46, and swell upward. Front of a down fender 47 having an arcuate cross-sectional shape and a ceiling wall portion 47a facing the front wheel WF from above and a pair of left and right side wall portions 47b integrally connected to the left and right sides of the ceiling wall portion 47a. In addition, when the up fender 46 is close to the front wheel WF, a relief recess 52 for preventing the curved side wall portion 46a from interfering with the front portion of the down fender 47 is provided above the pair of left and right side wall portions 47b. Since it is formed so as to be recessed rearward from the ceiling wall portion 47a, it is possible to prevent mutual interference between the up fender 46 and the down fender 47. It can be.

  Further, a pair of left and right sides recessed downward on the upper surface of the front portion of the ceiling wall portion 47a of the down fender 47 so as to accommodate a part of both sides of the rear portion of the up fender 46 when the up fender 46 comes close to the front wheel WF. Since the recesses 94 and 94 extend in the front-rear direction, the up fender 46 can be brought closer to the down fender 47 side while preventing the up fender 46 and the down fender 47 from interfering with each other. Water and mud can be prevented from jumping up.

  Further, since the protrusion 62 projecting downward is provided on the lower surface of the front end portion of the down fender 47, the space between the down fender 47 and the front wheel WF is narrowed at the portion where the protrusion 62 is provided, and the front wheel WF is rotated during traveling. Accordingly, it is possible to prevent mud or the like that scatters forward from the front end of the down fender 47 to the upper surface side and the upper surface of the down fender 47 from becoming dirty.

  Moreover, since the protrusion 62 is constituted by a part of the stay 55 for fixing the down fender 47 to the leg portion 35 of the front fork 11, the down fender 47 can be lowered without specially changing the bottom surface shape. The effect which suppresses that the upper surface of the fender 47 becomes dirty can be acquired.

  Further, a horn 95 is attached to the down pipe 14 of the vehicle body frame F behind the rear portion of the up fender 46 so as to be positioned above the lower edge 46b of the rear end of the up fender 46 in a side view. It is possible to prevent water or mud splashed from the WF from adhering to the horn 95.

  Further, the down fender 47 is formed such that the rear end lower edge 47d is positioned below the rotational axis C of the front wheel WF, so that mud and water splashed rearward from the front wheel WF are directed to the engine E and the occupant side. The scattering can be suppressed as much as possible by the rear end portion of the down fender 47.

  Further, since a rib 63 extending in the vehicle width direction is provided on the lower surface of the up fender 46 in front of the down fender 47, mud or the like scattered on the front wheel WF from the front and adhering to the inner surface of the up fender 46 during traveling. It can be prevented from splashing backward, and mud can be prevented from reaching the occupant.

Second embodiment

  A second embodiment of the present invention will be described with reference to FIG. 13 and FIG. 14, but the parts corresponding to the first embodiment are only given the same reference numerals and shown in detail. The detailed explanation is omitted.

  In front of the pair of left and right legs 35 and the down fender 47 included in the front fork 11, a pair of right and left air guide members 65 and 65 are fixedly disposed so as to cover the legs 35 from the front.

  The air guide member 65 has a shape that bulges outward in the vehicle width direction so as to be positioned outward in the vehicle width direction in the plan view, and forward of the leg portion 35 in the front fork 11. As shown by the arrows in FIG. 14, the traveling wind that has passed through the side of the air guide member 65 is swirled behind the leg 35 and behind the leg 35. By the negative pressure generated in the vehicle, the vehicle is attracted toward the inner side in the vehicle width direction, and the traveling wind can flow to the engine E side behind the down fender 47.

  Further, the air guide member 65 has a front projection 65a projecting forward, an upper inclined portion 65b extending rearward from the front projection 65a, and a rear lowering from the front projection 65a. The front protrusion 65a, the upper inclined portion 65b, and the lower inclined portion 65c are arranged so as to be substantially V-shaped.

  Thus, when the traveling wind hits the front protrusion 65a, the upper inclined portion 65b and the lower inclined portion 65c exhibit a supporting action, and when the traveling wind hits the upper inclined section 65b, the lower inclined section 65c exhibits a supporting action. In addition, when the traveling wind hits the lower inclined portion 65c, the upper inclined portion 65b exerts a supporting action so that it has sufficient durability against the traveling wind.

  Further, the air guide member 65 integrally has a flat plate-like attached portion 65d for connecting the rear portions of the upper inclined portion 65b and the lower inclined portion 65c, and the lower portion of the attached portion 65d is the front fork 11. Are fastened together with the front end portion of the support plate portion 55a of the stay 55 to the first support projection portion 53 that is provided near the upper end of the outer tube 41 of the leg portion 35 and protrudes forward. Are fastened by bolts 57 and fastened by bolts 67 to third support protrusions 66 protruding forward from the front portion of the outer tube 41 above the first support protrusions 53.

  According to the second embodiment, a pair of left and right air guide members 65 covering the pair of left and right legs 35, 35 from the front in front of the pair of left and right legs 35 and the down fender 47 included in the front fork 11. , 65 are fixedly arranged so as to guide the traveling wind from the front to the engine E side behind the legs 35, so that the traveling wind can flow to the engine E side behind the down fender 47.

  In addition, the air guide member 65 has a front projection 65a projecting forward, an upper slope 65b extending rearward from the front projection 65a, and a lower slope extending rearward from the front projection 65a. 65c and formed in a substantially V shape, the wind guide member 65 can be provided with sufficient durability against running wind.

Third embodiment

  The down fender according to the third embodiment of the present invention will be described with reference to FIG. 15. The rear portion of the down fender 47 is formed so that its width along the vehicle width direction becomes wider as it goes downward. That is, a pair of left and right projecting portions 47e, 47e projecting laterally are integrally formed on both sides of the rear portion of the down fender 47, and the lateral projecting amounts of these projecting portions 47e. Is set to be

  According to the third embodiment, mud and water splashed rearward from the front wheel WF (see the first embodiment) are scattered to the engine E (see the first embodiment) and the occupant side. Can be effectively suppressed at the rear part of the down fender 47.

Fourth embodiment

  A fourth embodiment of the present invention will be described with reference to FIGS. 16 and 17. Wing-shaped rectifying plates 88, 88 projecting from the down fender 47 to the left and right sides are provided at the rear end of the down fender 47. The rectifying plates 88 are provided integrally with louvers 89 and 89.

  The louver 89 has a plurality of blades 89a, and is configured such that a flow hole 90 is formed between the blades 89a, and each blade 89a has a front wheel WF. The louver 89 is provided on the rectifying plate 88 so as to cover the flow holes 90 when viewed from the side.

  According to the fourth embodiment, since the wing-shaped rectifying plates 88 and 88 project from the rear end portion of the down fender 47 to the left and right sides, by extending the rear end of the down fender 47 in the vehicle width direction, Improves mudguard performance.

  Further, since the louver 89 is provided in the rectifying plate 88, the traveling wind can be guided to the engine E side, and the plurality of flow holes 90 ... included in the louver 89 are covered with the wing plate 89a ... when viewed from the front wheel WF side. Therefore, mud or the like from the front wheel WF side can be prevented from reaching the engine E side through the flow holes 90.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the gist of the present invention.

For example, in the above embodiment, the lower edge of the rear end of the up fender is positioned below the upper edge of the front end of the down fender when the occupant is in the vehicle. May be located above the upper edge of the front end of the down fender. If it does so, the effect of this invention can be acquired at the time of a passenger | crew riding, making one or both of an up fender and a down fender as small as possible. In addition, the lower edge of the rear end of the up fender may be located at the same height as the upper edge of the front edge of the down fender or even lower than the upper edge of the front edge of the down fender even when no occupant is in the vehicle. Even when the weight of the occupant is, for example, 40 kg or less, the effect of the present invention can be obtained when riding.

Claims (13)

  A front fender (45) that covers the front wheel (WF) from above is close to the front fork (11) having a pair of left and right legs (35) that pivotally support the front wheel (WF) at the lower end. An up fender (46) supported from above and covering the front wheel (WF) from above at least in front of the front fork (11), and the front wheel (WF) upward from behind the front fork (11). And a down fender (47) that is disposed below the up fender (46) so as to cover the front and supported by the front fork (11) with a constant vertical position relative to the front wheel (WF). The up fender (46) is a front portion of the down fender (47) in a plan view. It extends over the front and rear of the front fork (11) so as to overlap, and the lower edge (46b) of the rear end of the up fender (46) when occupant is below the upper edge (47c) of the front end of the down fender (47). A front fender structure in a motorcycle characterized by being formed to be located at   Curved side wall portions (46a) that are recessed inward in the width direction so as to avoid the pair of left and right leg portions (35) and have a circular cross-section are provided on the left and right sides of the up fender (46), and the down fender ( 47) has an arcuate cross-sectional shape that swells upward, and is integrally connected to the ceiling wall portion (47a) facing the front wheel (WF) from above and to the left and right sides of the ceiling wall portion (47a). The left and right side walls (47b) are formed so that the up fender (46) is disposed at the front of the down fender (47) when the up fender (46) is close to the front wheel (WF). ) In which the curved side wall portion (46a) is prevented from interfering with the front portion of the down fender (47), the clearance recess portion (52) extends from the upper part of the pair of left and right side wall portions (47b) to the ceiling wall portion. (47a) A front fender structure of a motorcycle according to claim 1, wherein the only formed so as to dented rearward.   On the upper surface of the front part of the ceiling wall part (47a), when the up fender (46) comes close to the front wheel (WF), it is recessed downward so that a part of both sides of the rear part of the up fender (46) can be accommodated. The front fender structure for a motorcycle according to claim 2, wherein the pair of left and right recesses (94) extend in the front-rear direction.   The front fender structure in a motorcycle according to any one of claims 1 to 3, wherein a projection (62) projecting downward is provided on a lower surface of a front end portion of the down fender (47).   The protrusion (62) is constituted by a part of a stay (55) for fixing the down fender (47) to a leg (35) of the front fork (11). 4. A front fender structure in a motorcycle according to 4.   An electrical component (95) is placed on the vehicle body frame (F) behind the rear portion of the up fender (46) so as to be positioned above the lower edge (46b) of the rear end of the up fender (46) in a side view. The front fender structure in the motorcycle according to any one of claims 1 to 5, wherein the front fender structure is attached.   The said down fender (47) is formed so that a rear-end lower edge (47d) may be located below the rotation axis (C) of the said front wheel (WF), The one of Claims 1-6 characterized by the above-mentioned. A front fender structure for a motorcycle according to claim 1.   The front fender of a motorcycle according to any one of claims 1 to 7, wherein a rear portion of the down fender (47) is formed so that a width along a vehicle width direction is increased downward. Construction.   The motorcycle according to any one of claims 1 to 8, wherein a rib (63) extending in a vehicle width direction is provided on a lower surface of the up fender (46) in front of the down fender (47). Front fender structure.   The wing-shaped rectifying plate (88) projecting from the down fender (47) to the left and right sides is provided at the rear end of the down fender (47). Front fender structure for motorcycles.   A louver (89) having a plurality of blades (89a) and a flow hole (90) formed between the blades (89a) is seen from the front wheel (WF) side. The front fender structure in a motorcycle according to claim 10, wherein the wing plate (89a) is provided so as to be in a position covering the flow hole (90).   In front of the pair of left and right legs (35) and the down fender (47) included in the front fork (11), a pair of right and left wind guide members (65) covering the pair of left and right legs (35) from the front. The front in a motorcycle according to any one of claims 1 to 11, wherein the front is fixedly arranged to guide the traveling wind from the front to the engine (E) side behind the legs (35). Fender structure.   A side view shape of the air guide member (65) includes a front protrusion (65a) protruding forward, an upper inclined part (65b) extending rearwardly from the front protrusion (65a), and the front protrusion ( The front fender structure in a motorcycle according to claim 12, wherein the front fender structure is formed in a substantially V shape having a lower inclined portion (65c) extending downward from 65a).

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