JP6287660B2 - Motorcycle front cover mounting structure - Google Patents

Description

  The present invention relates to a structure for attaching a front cover of a motorcycle suitably used for a scooter type vehicle.

  A scooter-type motorcycle having a leg shield and a front cover so as to surround the head pipe is widely known.

  For example, Patent Document 1 discloses a front cover device for a scooter type vehicle including a leg shield for protecting a leg of a rider seated on a seat and a front cover provided in front of the leg shield. The front cover includes a front cover body in which a maintenance opening is formed, and a maintenance lid that opens and closes the maintenance opening. The front cover body is screwed at two places on the left and right with respect to the lower stay protruding from the head pipe, and is screwed at two places on the upper left and right with respect to the leg shield. The maintenance lid is screwed to the upper stay extending from the head pipe and is screwed to the left and right upper portions of the leg shield.

JP-A-11-198881

  In the technique described in Patent Document 1 described above, the maintenance lid cannot be attached unless it is aligned with the upper stay of the head pipe and the maintenance opening of the front cover body. That is, the mounting accuracy of the front cover body directly affects the mounting accuracy of the maintenance lid. Therefore, the front cover body has to be tightened with two screws so as not to be displaced with respect to the lower stay. For this reason, the technique described in Patent Document 1 has a problem that workability related to the attachment of the front cover main body is deteriorated. Further, in order to position the maintenance lid with respect to the front cover body, the upper stay and the lower stay have to be disposed on the head pipe with a high degree of positional accuracy.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a mounting structure for a front cover of a motorcycle for improving workability related to the mounting of the front cover.

  A motorcycle front cover mounting structure according to the present invention includes a front cover provided in front of a leg shield so as to sandwich a head pipe supporting a front fork, and the front cover includes an upper cover positioned on an upper side and a lower cover. A lower cover located on the side, and a center cover that is covered by a cover opening formed so as to cut out a part of the upper cover. A fixing rib provided in the cover opening and serving as a tightening position of a single fixing member, and a plurality of engaging portions provided along an edge of the cover opening. The upper cover joined to the upper portion of the lower cover has a plurality of engaged portions that engage with the respective engaging portions when covering the cover opening, and the single fixing portion Characterized in that attached to the head pipe by.

  According to this configuration, the center cover is attached to the upper cover so as to cover the cover opening by engaging each engaged portion with each engaging portion provided at the edge of the cover opening. That is, the mounting accuracy of the upper cover with respect to the head pipe does not affect the mounting accuracy of the center cover with respect to the upper cover. For this reason, the center cover is accurately attached to the upper cover so as to close the cover opening without depending on the attachment accuracy of the upper cover. Therefore, the upper cover can be attached to the head pipe easily and quickly using a single fixing member. Thereby, workability | operativity which concerns on attachment of a front cover can be improved.

  In this case, it is preferable that a holder for supporting a support object is attached to the outer surface of the center cover.

  According to this configuration, the holder is attached to the upper cover while being positioned on the center cover. As a result, the holder can be easily and quickly positioned with respect to the center cover and the upper cover.

  In this case, the cover opening is formed in a V shape from the upper end of the upper cover toward the front lower side, and the fixing rib is provided at the front lower end of the cover opening. Of the joint portions, one engaging portion is preferably provided on the fixed rib, and the other engaging portion is preferably provided at a position spaced apart from the fixed rib in the vehicle width direction and the rear upper direction. .

  According to this configuration, the fixing rib, which is the fastening position of the fixing member, is disposed at the apex portion of the V shape, and one engaging portion is provided on the fixing rib. Thus, the operator can easily attach the center cover to the upper cover (cover opening) with reference to the engaging portion at the apex portion. Further, when the center cover is attached to the upper cover, the other engaging portions and the other engaged portions are engaged at positions spaced from the apex portion in the width direction (left-right direction) and the rear upper direction. Thereby, the position shift of the center cover with respect to the upper cover (cover opening) can be prevented.

  In this case, the upper cover is formed with either a fitting groove or a fitting rib along an edge of the cover opening, and the center cover has the fitting groove and the fitting rib. When the other is formed along the outer edge and the center cover covers the cover opening, the fitting rib is preferably fitted into the fitting groove.

  According to this configuration, the center cover is attached to a position covering the cover opening by fitting the fitting rib into the fitting groove. Thereby, the center cover can be easily positioned with respect to the upper cover. Further, since the joint between the upper cover and the center cover can be made uniform, the appearance quality of the front cover can be improved.

  According to the present invention, the mounting operation of the front cover of a motorcycle can be easily performed.

1 is a side view showing a motorcycle according to an embodiment of the present invention. 1 is a front perspective view showing a motorcycle according to an embodiment of the present invention. 1 is an exploded perspective view showing a front cowl of a motorcycle according to an embodiment of the present invention. It is a perspective view which shows the upper side cover etc. of the front cover which concerns on one Embodiment of this invention. It is a front view which shows the upper cover etc. of the front cover which concerns on one Embodiment of this invention. It is a side view which shows the upper side cover of the front cover which concerns on one Embodiment of this invention. It is an upper perspective view which shows the center cover etc. of the front cover which concerns on one Embodiment of this invention. It is a downward perspective view which shows the center cover of the front cover which concerns on one Embodiment of this invention. It is IX-IX sectional drawing in FIG.

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

  With reference to FIG. 1 and FIG. 2, the motorcycle 1 provided with the attachment structure of the front cover 31a which concerns on this embodiment is demonstrated. Here, FIG. 1 is a side view showing the motorcycle 1. FIG. 2 is a front perspective view showing the motorcycle 1. In the following description, each direction of the vehicle is set on the basis of the rider who has boarded the motorcycle 1, and the direction of the vehicle is appropriately shown in each figure.

  As shown in FIG. 1, the scooter type motorcycle 1 is schematically configured to include a body frame 2, an engine 3, and a body cover 4.

  The vehicle body frame 2 is configured by welding a plurality of tubes made of steel, aluminum alloy, or the like. The vehicle body frame 2 includes a head pipe 10, a down tube 11, a main tube 12, and a pair of left and right side tubes 13.

  The head pipe 10 supports a pair of left and right front forks 14 so as to be steerable left and right. A front wheel 15 is rotatably supported at the lower portion of the front fork 14. A handle bar 16 is provided on the upper portion of the front fork 14.

  The down tube 11 extends substantially downward from the head pipe 10 and is curved with its lower part facing rearward. The main tube 12 extends rearward from the curved lower end portion of the down tube 11. The main tube 12 is formed integrally with the down tube 11.

  Each of the pair of left and right side tubes 13 extends from the rear end portion of the main tube 12 so as to be inclined rearward and upward. A helmet box 17 is provided between the pair of left and right side tubes 13. On the upper side of the pair of left and right side tubes 13, a seating seat 18 for a rider to sit is provided. The seat 18 is configured to be rotatable about the front end as a fulcrum, and serves as a lid for the helmet box 17.

  The engine 3 includes a cylinder (not shown), a crankcase 20, and a transmission case 21.

  The engine 3 (crankcase 20) is connected to the rear end portion of the main tube 12 through a swing pivot (not shown) so as to be swingable in the vertical direction. A power transmission device (not shown) such as a belt-type continuously variable transmission is provided inside the transmission case 21. A rear wheel 22 as a drive wheel is rotatably supported at the rear end portion of the transmission case 21. A shock absorber 23 is installed between the transmission case 21 and the left side tube 13. The engine 3 is configured as a so-called unit swing type engine in which the transmission case 21 functions as a swing arm. An air cleaner 24 that filters combustion air is disposed above the transmission case 21.

  As shown in FIGS. 1 and 2, the vehicle body cover 4 is attached to the vehicle body frame 2 and constitutes the main appearance of the motorcycle 1. The vehicle body cover 4 includes a handle cover 30, a front cowl 31, a step board 32, and a seat cowl 33. In addition, each part of the vehicle body cover 4 is injection-molded with a resin material or the like, for example.

  The handle cover 30 is provided so as to cover the handle bar 16. The front cowl 31 is provided on the front side of the vehicle in order to protect the legs of the rider seated on the seating seat 18. A front fender 34 is provided above the front wheel 15. 2, illustration of the front fender 34 and the holder 64 (described later) is omitted.

  The step board 32 extends substantially flat from the lower end of the front cowl 31 toward the rear. The step board 32 has a step floor 32a and a lower cover 32b. The step floor 32 a is disposed on the upper side of the main tube 12 and is fixed to the main tube 12. The rider seated on the seat 18 places both feet on the step floor 32a. The lower cover 32 b is disposed below the main tube 12 and is fixed to the main tube 12.

  The seat cowl 33 is disposed so as to cover the periphery of the helmet box 17 and is fixed to each side tube 13. A rear combination lamp 35 integrally formed with a brake lamp, a blinker lamp, and the like is attached behind the seat cowl 33. A rear fender 36 is provided below the rear combination lamp 35 to cover the rear wheel 22.

  Next, the front cowl 31 will be described in detail with reference to FIGS. FIG. 3 is an exploded perspective view showing the front cowl 31. FIG. 4 is a perspective view showing the upper cover 40 and the like. FIG. 5 is a front view showing the upper cover 40 and the like. FIG. 6 is a side view showing the upper cover 40. FIG. 7 is an upper perspective view showing the center cover 60 and the like. FIG. 8 is a lower perspective view showing the center cover 60. 9 is a cross-sectional view taken along line IX-IX in FIG.

  As shown in FIGS. 1 to 3, the front cowl 31 includes a front cover 31a and a leg shield 31b. The front cover 31a covers the head pipe 10 from the front side, and the leg shield 31b covers the head pipe 10 from the rear side. That is, the front cover 31 a and the leg shield 31 b are arranged so as to surround the head pipe 10.

  The front cover 31a has a structure that can be divided including the upper cover 40, the lower cover 50, and the center cover 60. The upper cover 40 is located on the upper side, and the lower cover 50 is located on the lower side. The center cover 60 is covered with a cover opening 41 formed so as to cut out a part of the upper cover 40.

  As shown in FIGS. 4 to 6, the upper cover 40 includes a cover main body 40a and a pair of left and right cover wall portions 40b.

  The cover body 40a is formed in a downward slope toward the front side in a side view (see FIG. 6). The cover main body 40a is formed in a substantially V shape projecting so as to narrow toward the front side in plan view so as to surround the front peripheral surface of the head pipe 10. A cover opening 41 is formed on the upper surface (front surface) of the cover main body 40a for maintenance of components arranged on the front side of the head pipe 10 inside the cover main body 40a. The cover opening 41 is formed in a substantially V shape that becomes narrower from the upper end of the cover body 40a toward the front lower side, similarly to the substantially V shape of the cover body 40a. That is, the left and right edges of the cover opening 41 are closer to the front side, and the V-shaped apex is arranged at the front lower side of the vehicle. A pair of left and right front combination lamps 40c integrally formed with a blinker lamp and the like are attached to both sides of the cover body 40a in the left and right direction.

  Further, the cover body 40 a of the upper cover 40 includes a fixing rib 42, three positioning holes 43 a to 43 c, and a fitting groove 44.

  The fixing rib 42 is provided at a position that is most forward of the vehicle in the cover opening 41. Specifically, the fixing rib 42 is provided at the front lower end (tip) of the cover opening 41. The fixing rib 42 is formed in a substantially triangular plate shape having the lower end of the cover opening 41 as an apex in front view so as to connect the left and right edges of the cover opening 41. A bolt through hole 42 a is formed in the upper portion of the fixing rib 42. Although details will be described later, the fixing rib 42 is a tightening position of the cover fixing bolt B3 as a single fixing member.

  The three positioning holes 43 a to 43 c as the engaging portions are provided along the edge of the cover opening 41. Specifically, of the three positioning holes 43a to 43c, one positioning hole 43a is provided in a rectangular boss 42b that protrudes forward at the front lower portion of the fixing rib 42 that is in front of the bolt through hole 42a. . The positioning hole 43a has a rectangular shape that is long in the left-right direction when viewed from the front, and is formed through the front wall of the rectangular boss 42b in the front-rear direction. Note that (four) abutment ribs 42c project from the left and right end portions of the fixed rib 42 and the left and right end portions of the rectangular boss 42b, respectively, toward the front side. A predetermined interval is formed between the front end portion of each abutment rib 42c and the edge portion of the cover opening 41 so that a fitting rib 62 of the center cover 60 to be described later enters.

  The remaining two positioning holes 43b and 43c are respectively provided in a pair of left and right projecting pieces 43d that are spaced apart from the fixing rib 42 in the left-right direction (width direction) and the rear upper direction. The pair of left and right protruding pieces 43d are formed in a substantially flat plate shape that extends toward the center in the left-right direction at a substantially middle portion in the front-rear direction of the edge of the cover opening 41. Moreover, each protrusion piece 43d protrudes above the upper surface (front surface) of the cover main body 40a by side view (refer FIG. 6). Each positioning hole 43b, 43c is formed to penetrate the protruding piece 43d in the front-rear direction, and has a rectangular shape that is long in the up-down direction when viewed from the front.

  The fitting groove 44 is formed along the edge of the cover opening 41 located above the fixing rib 42. The fitting groove 44 is continuous with the upper surface of the edge of the cover opening 41 and is recessed with the upper part opened. That is, the fitting groove 44 has a substantially U-shaped cross section. Note that a fitting rib 62 of a center cover 60 described later enters the fitting groove 44.

  Each of the pair of left and right cover wall portions 40b is formed by bending downward a tip portion extending rearward from the lower end portion of the cover body 40a (see FIG. 6). That is, each cover wall part 40b is formed in the substantially L shape by the side view.

  The upper cover 40 includes a pair of left and right first front through holes 45, a pair of left and right first front screw holes 46, a pair of left and right second front screw holes 47, a pair of left and right second front through holes 48, And a pair of upper engaging portions 49. The pair of left and right first front through holes 45 are formed in a pair of left and right projecting pieces 45a extending from the edge of the cover opening 41 toward the center in the left and right direction at the rear end of the cover body 40a. The pair of left and right first front screw holes 46 are formed on the left and right outer sides at the lower rear end of the cover body 40a. The pair of left and right second front screw holes 47 are formed at the upper rear end of each cover wall 40b. The pair of left and right second front through holes 48 are formed in a pair of left and right projecting pieces 48a extending from the inside of the bent portion of each cover wall portion 40b toward the center in the left and right direction. The pair of left and right upper engaging portions 49 is formed at the lower end of each cover wall portion 40b. In FIG. 3, only one of the pair of left and right holes is provided with a reference numeral.

  As shown in FIGS. 1 to 3, the lower cover 50 is formed in a substantially tray shape that is long in the vertical direction. Further, the lower cover 50 is formed to be slightly curved so as to bulge to the rear side. A rectangular opening 50 a is formed in the upper part of the lower cover 50 so as not to interfere with the front fork 14.

  As shown in FIG. 3, the lower cover 50 includes a pair of left and right third front screw holes 51, a pair of left and right lower engaging portions 52, a pair of left and right fourth front screw holes 53, and a pair of left and right nuts. It has an engaging portion 54 and three engaging pieces 55. The pair of left and right third front screw holes 51 and the pair of left and right lower engaging portions 52 are formed at the upper end of the lower cover 50 so as to sandwich the rectangular opening 50a. The pair of left and right fourth front screw holes 53 are formed on the left and right outer sides in the middle portion in the vertical direction of the lower cover 50. The pair of left and right nut engaging portions 54 are formed on the left and right outer sides at the lower part of the lower cover 50. Each nut engaging portion 54 holds a nut N. The three engagement pieces 55 are formed at equal intervals in the left-right direction at the lower end portion of the lower cover 50.

  As shown in FIGS. 2 and 7, the center cover 60 is formed in a substantially triangular shape in front view so as to cover the cover opening 41 of the upper cover 40. As shown in FIG. 8, the center cover 60 includes three positioning pins 61a to 61c, a fitting rib 62, and a pair of left and right cover screw holes 63.

  The three positioning pins 61a to 61c as the engaged portions are provided at positions that engage with the positioning holes 43a to 43c of the upper cover 40 when the cover opening 41 is covered. The center cover 60 is detachably attached to the upper cover 40 via the positioning pins 61a to 61c.

  Specifically, of the three positioning pins 61 a to 61 c, one positioning pin 61 a extends from the rear surface (back surface) of the front lower end portion (tip portion) of the center cover 60 toward the rear side. The positioning pin 61a is formed in a substantially H shape that is flat in the vertical direction when viewed from the back. Tapered surfaces T1 are formed on the upper and lower surfaces of the positioning pin 61a so as to become thinner from the base end portion toward the tip end portion (rear end portion). The remaining two positioning pins 61b and 61c are extended from the rear surface (back surface) to the rear side of the center cover 60 at positions spaced from the front end of the center cover 60 in the left-right direction and the rear upper direction, respectively. Yes. The pair of left and right positioning pins 61b and 61c are each formed in a substantially I-shape (H-shape rotated 90 degrees) flat in the left-right direction when viewed from the back. Tapered surfaces T2 and T3 are formed on both the left and right surfaces of the positioning pins 61b and 61c so as to become thinner from the base end portion toward the tip end portion (rear end portion).

  The fitting rib 62 is formed along the outer edge portion excluding the front end side of the center cover 60. The fitting rib 62 protrudes downward from the outer edge of the center cover 60.

  The pair of left and right cover screw holes 63 are formed in a boss portion that hangs downward from the rear surface (back surface) at the rear end portion of the center cover 60 and at both left and right outer end portions. A center engaging piece 60 a extending rearward from the rear surface (back surface) is provided at the center of the rear end of the center cover 60.

  As shown in FIG. 7, a holder 64 is attached to the upper surface (outer surface) of the center cover 60. The holder 64 is provided to support a license plate or the like as a support target. The holder 64 has a holder body 64a and a pair of left and right legs 64b. The holder 64 is integrally formed of a resin material having excellent impact resistance and weather resistance. The holder 64 may support the heel as a support target.

  The holder main body 64a is formed in a substantially rectangular plate shape extending in the left-right direction. At both left and right ends of the holder body 64a, attachment holes 64c for fixing the support target are formed. The pair of left and right leg portions 64b protrude downward from the lower surface (back surface) of the holder body 64a. The pair of left and right leg portions 64b are provided on the center side in the left-right direction with respect to the formation position of each mounting hole 64c. A screw hole 64d is formed on the lower surface of each leg portion 64b (see FIG. 9). On the upper surface of the center cover 60, a pair of left and right circular recesses 60b for arranging the leg portions 64b are provided. A mounting through hole 60c is formed in each circular recess 60b (see FIG. 8).

  Here, a procedure for attaching the holder 64 to the center cover 60 will be briefly described. The operator places each leg portion 64b of the holder 64 in the circular recess 60b, and inserts the screw S0 into each attachment through hole 60c from the back side of the center cover 60 (see FIG. 3). The screw S0 that passes through each mounting through hole 60c is screwed into the screw hole 64d of the leg portion 64b (see FIG. 9). Thereby, each leg 64b of the holder 64 is fastened and fixed to the circular recess 60b, and the holder 64 is fixed to the center cover 60. That is, the holder 64 is fixed only to the center cover 60.

  Next, as shown in FIGS. 1 and 3, the leg shield 31b has a structure that can be divided into an upper shield 65 positioned on the upper side and a lower shield 80 positioned on the lower side. The leg shield 31b has a pair of left and right front racks 66 that are recessed by forming a rack opening 66a in the upper part.

  As shown in FIG. 3, the upper shield 65 is configured to include an opening wall portion 65a, a front wall portion 65b, and a rear wall portion 65c. The opening wall portion 65 a is arranged substantially horizontally and constitutes a rack opening portion 66 a of each front rack 66. The front wall portion 65b extends obliquely upward and rearward from the front end portion of the opening wall portion 65a. The rear wall portion 65c extends downward from the rear end portion of the opening wall portion 65a. Therefore, the upper shield 65 is formed in a substantially crank shape in a side view.

  A pair of left and right upper end arm portions 67a are extended toward the front side at the upper end portion of the front wall portion 65b. A substantially circular pipe opening 67b (to be precise, there is a gap on the front side) is formed in a range surrounded by the pair of left and right upper arm portions 67a. An upper fixing hole 68 is formed through the center of the rear wall 65c in the left-right direction. The upper fixing hole 68 is an attachment position of the loading hook 100. Although illustration is omitted, three shield hooks are provided at the lower end portion of the rear wall portion 65c, and a pair of left and right shield pins are provided at the lower front portion of the front wall portion 65b.

  The upper shield 65 includes a pair of left and right first rear through holes 70, a pair of left and right second rear through holes 71, a pair of left and right third rear through holes 72, and a pair of left and right rear screw holes 73. ,have. The pair of left and right first rear through holes 70 are formed on the left and right sides of the upper portion of the front wall portion 65b. The pair of left and right second rear through holes 71 are formed on the left and right outer sides at the lower part of the front wall portion 65b. The pair of left and right third rear through holes 72 are formed on the left and right outer sides at the upper part of the rear wall portion 65c. The pair of left and right rear screw holes 73 are located substantially below the respective third rear through holes 72 and are formed on the front surface of the rear wall portion 65c.

  As shown in FIGS. 1 and 3, the lower shield 80 includes a shield body 81 and a support portion 82. The shield body 81 is erected on the front end portion of the step floor 32a in a state of being attached to the vehicle body frame 2. The support part 82 is integrally formed on the upper part of the shield body 81 so as to be joined to the upper shield 65.

  As shown in FIG. 3, a lower fixing hole 86 is formed through the center portion of the support portion 82 in the left-right direction. A pair of left and right recesses 87 are provided on both left and right outer sides of the support portion 82. The pair of left and right recesses 87 are opened in the upper side and the rear side, are recessed forward substantially, and are disposed symmetrically. Three hook engaging holes 83 are formed through the lower portion of the support portion 82. A pair of left and right protruding pieces 84 a extending upward are formed on the upper portion of the support portion 82. A pin engaging hole 84 is formed through each of the pair of left and right protruding pieces 84a.

  The lower shield 80 includes a pair of left and right fourth rear through holes 90, a pair of left and right fifth rear through holes 91, a pair of left and right sixth rear through holes 92, and a pair of left and right seventh rear through holes. It has a hole 93 and three rear hooks 94. The pair of left and right fourth rear through-holes 90 are formed in a protruding piece 90 a that extends upward from the upper end on the left and right outer sides of the support portion 82. The pair of left and right fifth rear through-holes 91 are formed in a protruding piece 91a that extends from the outer surface of the support portion 82 toward the left and right outer sides. The pair of left and right sixth rear through holes 92 are formed at the left and right outer ends at the lower portion of the support portion 82. The pair of left and right seventh rear through-holes 93 are formed on the left and right outer sides in the middle portion of the shield body 81 in the vertical direction. The three rear hooks 94 are formed at equal intervals in the left-right direction at the lower end of the shield body 81.

  Next, the assembly procedure of the leg shield 31b will be briefly described with reference to FIG. First, the worker places the upper shield 65 behind the support portion 82 of the lower shield 80. The operator aligns the shield hooks in the hook engaging holes 83 and aligns the shield pins in the pin engaging holes 84 and pushes the upper shield 65 forward with respect to the lower shield 80.

  When the upper shield 65 and the lower shield 80 are joined, the shield hooks of the upper shield 65 engage with the hook engagement holes 83 of the lower shield 80, and the shield pins of the upper shield 65 are It fits in each pin engaging hole 84 of the side shield 80. The lower end portion of the front wall portion 65 b of the upper shield 65 abuts on the upper end portion of the support portion 82 of the lower shield 80. The opening wall portion 65 a and the rear wall portion 65 c of the upper shield 65 cover the recess 87. A pair of left and right front racks 66 is configured by a space surrounded by the rear wall portion 65c and the respective recesses 87 (see FIG. 1). Thereby, the user can store small items in each front rack 66.

  Subsequently, the operator inserts the screw S <b> 1 into each sixth rear through hole 92 of the lower shield 80. The tip of each screw S1 is screwed into each rear screw hole 73 of the upper cover 40. As a result, the upper shield 65 is joined to the lower shield 80 to form a parted leg shield 31b.

  Next, the assembly procedure of the front cowl 31 will be described with reference to FIGS.

  First, the worker attaches the assembled leg shield 31 b to the vehicle body frame 2. Specifically, the worker arranges the leg shield 31b on the rear side of the head pipe 10 and the down tube 11 (see FIG. 1). At this time, the head pipe 10 is caused to enter the pipe opening 67 b of the upper shield 65. Subsequently, the operator engages the three rear hooks 94 of the lower shield 80 with the front end portion of the step floor 32 a of the step board 32.

  Subsequently, as shown in FIG. 3, the operator inserts the shield fixing bolt B <b> 1 through which the loading hook 100 penetrates into the upper fixing hole 68 of the upper shield 65 from the rear side. The tip of the shield fixing bolt B1 passes through the lower fixing hole 86 of the lower shield 80 and is screwed into the screw hole of the shield bracket 10a formed in the head pipe 10 (see FIG. 9). Thereby, the loading hook 100, the upper shield 65, and the lower shield 80 are fastened together with the head pipe 10 by the shield fixing bolt B1. The leg shield 31 b is provided so as to cover the rear side of the head pipe 10 and the down tube 11.

  Next, the worker attaches the front cover 31 a to the vehicle body frame 2. First, an operator arrange | positions the lower side cover 50 between the front wheel 15 and the down tube 11 (refer FIG. 1). The operator engages the three engagement pieces 55 of the lower cover 50 with the front end portion of the lower cover 32 b of the step board 32. Thereby, the lower cover 50 is temporarily fixed to the lower cover 32b. Subsequently, the worker screws the pair of left and right bolts B2 inserted from the outside of the lower cover 32b into the nuts N of the respective nut engaging portions 54. Thereby, the lower cover 50 is joined to the lower cover 32b.

  Subsequently, the operator inserts the screw S <b> 2 into each seventh rear through hole 93 of the lower shield 80 from the rear side. The screw S <b> 2 that has passed through each seventh rear through hole 93 is screwed into the fourth front screw hole 53 of the lower cover 50. Thereby, the lower cover 50 is joined to the lower shield 80.

  Next, the worker arranges the upper cover 40 on the front side of the head pipe 10. The operator engages each upper engagement portion 49 of the upper cover 40 via the clip C with each lower engagement portion 52 of the lower cover 50. Thereby, the upper cover 40 is temporarily fixed to the lower cover 50. Subsequently, the operator inserts the screw S3 into each second front through hole 48 of the upper cover 40 from the front side. The tip of each screw S3 is screwed into each third front screw hole 51 of the lower cover 50. Thereby, the upper cover 40 is joined to the lower cover 50, and the front cover 31a is comprised.

  Subsequently, the operator inserts the cover fixing bolt B3 into the bolt through hole 42a of the upper cover 40 (fixing rib 42) from the front side. The front end portion of the cover fixing bolt B3 is screwed into a screw hole of the cover bracket 10b formed on the battery holder disposed on the front side of the head pipe 10 (see FIG. 9). A fixing rib 42 provided at the foremost part in the cover opening 41 is fixed by a single cover fixing bolt B3 that is screwed into a screw hole of the cover bracket 10b. Thereby, the upper cover 40 joined to the upper part of the lower cover 50 is attached to the head pipe 10 by the single cover fixing bolt B3. That is, the front cover 31 a is provided so as to cover the front side of the head pipe 10 and the down tube 11. Further, as shown in FIG. 9, the fixing portion of the cover fixing bolt B <b> 3 is located at the same height as the shield fixing bolt B <b> 1 that fixes the leg shield 31 b to the rear side of the down tube 11. Since the front cover 31a and the leg shield 31b are fixed to the vehicle body frame 2 with a large distance in the front-rear direction of the vehicle, the accuracy of the mounting position is improved and the merchantability is improved even if there are few tightening points. be able to.

  Subsequently, the operator attaches the center cover 60 so as to close the cover opening 41 of the upper cover 40. It is assumed that the holder 64 is already attached to the center cover 60. Since the holder 64 is not fixed to the vehicle body but is attached only to the center cover 60 and is attached to the vehicle via the center cover 60, the assemblability can be improved.

  The operator arranges the center cover 60 in front of the cover opening 41. The operator aligns the positioning pins 61 a to 61 c of the center cover 60 in the positioning holes 43 a to 43 c of the cover body 40 a and pushes the center cover 60 backward to the upper cover 40. At this time, the positioning pins 61a to 61c are inserted while being guided by the tapered surfaces T1 to T3 sliding on the edge portions of the positioning holes 43a to 43c. Thereby, the operator can perform the fitting operation | movement with each positioning pin 61a-61c and each positioning hole 43a-43c easily and smoothly.

  Further, when the center cover 60 is pushed in, the fitting rib 62 of the center cover 60 enters the fitting groove 44 of the cover main body 40a and is fitted. In addition, although the fitting groove 44 is not formed in the vicinity of the fixing rib 42 provided in the foremost portion in the cover opening 41 (the front side portion of the cover opening 41), the four contact ribs 42c described above are The contact with the fitting rib 62 of the center cover 60 prevents the upward movement. As described above, the pushing of the center cover 60 into the upper cover 40 is restricted, and the center cover 60 is temporarily fixed to the upper cover 40 with the cover opening 41 covered. In this state, the center engaging piece 60a of the center cover 60 is fitted between the pair of left and right upper end arms 67a (see FIG. 9). Further, the back surface of the front lower end portion of the center cover 60 is in contact with the front end surface of each contact rib 42c.

  Subsequently, the operator inserts screws S4 to S6 into the first rear through holes 70, the second rear through holes 71, and the third rear through holes 72 of the upper shield 65 from the rear side, respectively. To do. The screw S4 that has passed through each first rear through hole 70 passes through the first front through hole 45 of the upper cover 40 and is screwed into cover screw holes 63 formed in the left and right ends of the rear portion of the center cover 60. That is, since the upper cover 40, the center cover 60, and the upper shield 65 are fastened together by the screws S4, the three components can be accurately aligned. The screw S5 that passes through each second rear through hole 71 passes through the fourth rear through hole 90 of the lower shield 80 and is screwed into the first front screw hole 46 of the upper cover 40. The screw S6 that passes through each third rear through hole 72 passes through the fifth rear through hole 91 of the lower shield 80 and is screwed into the second front screw hole 47 of the upper cover 40. That is, the upper cover 40, the upper shield 65, and the lower shield 80 are fastened together by the screws S5 and S6.

  As described above, the front cover 31a is provided in front of the leg shield 31b so as to sandwich the head pipe 10 and the down tube 11. The front cover 31a and the leg shield 31b are fixed to each other to form the front cowl 31. The front cover 31a is fixed at the foremost position in the cover opening 41 by the cover fixing bolt B3, and the leg shield 31b is fixed to the down tube 11 by the shield fixing bolt B1. Thereby, the front cover 31a and the leg shield 31b can be accurately attached to the vehicle body. The assembly procedure of the front cowl 31 described above is an example, and the present invention is not limited to this procedure. For example, the leg shield 31 b may be attached to the head pipe 10 after the front cover 31 a is attached to the head pipe 10.

  According to the mounting structure of the front cover 31a of the motorcycle 1 according to the present embodiment described above, the center cover 60 has the positioning pins 61a to 61c in the positioning holes 43a to 43c provided at the edge of the cover opening 41. Is attached to the upper cover 40 so as to cover the cover opening 41. That is, the mounting accuracy of the upper cover 40 with respect to the head pipe 10 does not affect the mounting accuracy of the center cover 60 with respect to the upper cover 40. For this reason, the center cover 60 is accurately attached to the upper cover 40 so as to close the cover opening 41 without depending on the attachment accuracy of the upper cover 40. Therefore, the upper cover 40 can be easily and quickly attached to the head pipe 10 using the single cover fixing bolt B3. Thereby, workability | operativity concerning attachment of the front cover 31a can be improved.

  Further, according to the mounting structure of the front cover 31 a of the motorcycle 1 according to the present embodiment, the holder 64 is mounted on the upper cover 40 while being positioned on the center cover 60. Thereby, the holder 64 can be easily and quickly positioned with respect to the center cover 60 and the upper cover 40.

  Further, according to the mounting structure of the front cover 31a of the motorcycle 1 according to the present embodiment, the fixing rib 42, which is the fastening position of the fixing member, is arranged at the apex portion of the V shape, and one positioning hole 43a is the fixing rib 42. Is provided. Thus, the operator can easily attach the center cover 60 to the upper cover 40 (cover opening 41) based on the positioning hole 43a at the apex portion. When the center cover 60 is attached to the upper cover 40, the other positioning holes 43b and 43c and the other positioning pins 61b and 61c are spaced apart from the apex portion in the width direction (left-right direction) and the rear upper direction. Engage. Thereby, the position shift of the center cover 60 with respect to the upper cover 40 (cover opening 41) can be prevented.

  Further, according to the mounting structure of the front cover 31 a of the motorcycle 1 according to the present embodiment, the center cover 60 is mounted at a position covering the cover opening 41 by fitting the fitting rib 62 into the fitting groove 44. It is done. Thereby, the center cover 60 can be easily positioned with respect to the upper cover 40. Further, since the joint between the upper cover 40 and the center cover 60 can be made uniform, the appearance quality of the front cover 31a can be improved.

  In addition, each positioning hole 43a-43c and each positioning pin 61a-61c should just be provided two or more, respectively. Moreover, it may replace with each positioning pin 61a-61c, and may provide a claw-shaped hook, and you may make it hook in each positioning hole 43a-43c. Further, the positioning holes 43a to 43c may be provided in the center cover 60, and the positioning pins 61a to 61c may be provided in the cover body 40a.

    In addition, although the cover opening part 41 and the center cover 60 of the upper cover 40 were formed in substantially V shape (substantially triangular shape), it is not restricted to this. For example, it may be formed in a U shape. The fitting groove 44 and the fitting rib 62 may be provided on the entire circumference of the cover opening 41 and the center cover 60. Further, the fitting groove 44 may be provided on the outer periphery of the center cover 60, and the fitting rib 62 may be provided on the edge of the cover opening 41.

  In the description of the present embodiment, the case where the present invention is applied to the motorcycle 1 is shown as an example. However, the present invention is not limited thereto, and the present invention may be applied to a vehicle such as a four-wheeled vehicle. Good.

  In addition, in order to show suitable embodiment in the attachment structure of the front cover of the motorcycle which concerns on this invention, description of this embodiment mentioned above may attach | subject the technically preferable various restrictions, The technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention. Furthermore, the constituent elements in the embodiments of the present invention described above can be appropriately replaced with existing constituent elements, and various variations including combinations with other existing constituent elements are possible. The description of the embodiment of the present invention is not intended to limit the content of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 Motorcycle 10 Head pipe 14 Front fork 31a Front cover 31b Leg shield 40 Upper cover 41 Cover opening 42 Fixing rib 43a-43c Positioning hole (engagement part)
44 Fitting groove 50 Lower cover 60 Center cover 61a to 61c Positioning pin (engaged part)
62 Fitting rib 64 Holder B3 Cover fixing bolt (fixing member)

Claims (3)

With a front cover provided in front of the leg shield so as to sandwich the head pipe that supports the front fork,
The front cover is
An upper cover located on the upper side;
A lower cover located on the lower side;
A center cover that covers the cover opening formed so as to cut out a part of the upper cover, and has a structure that can be divided.
The upper cover is
A fixing rib provided in the cover opening and serving as a tightening position of a single fixing member;
A plurality of engaging portions provided along an edge of the cover opening,
The center cover has a plurality of engaged portions that engage with the engaging portions when covering the cover opening,
The upper cover joined to the upper part of the lower cover is attached to the head pipe by the single fixing member ,
The cover opening is formed in a V shape from the upper end of the upper cover toward the front lower side,
The fixing rib is provided at a front lower end portion of the cover opening,
Of the plurality of engaging portions, one engaging portion is provided on the fixed rib, and the other engaging portion is provided at a position spaced apart from the fixed rib in the vehicle width direction and the rear upper direction. mounting structure of the front cover of the motorcycle, characterized in that there.   The structure for mounting a front cover of a motorcycle according to claim 1, wherein a holder for supporting a support object is attached to an outer surface of the center cover. In the upper cover, either one of a fitting groove and a fitting rib is formed along an edge of the cover opening,
In the center cover, one of the fitting groove and the fitting rib is formed along an outer edge portion,
The structure for mounting a front cover of a motorcycle according to claim 1 or 2 , wherein the fitting rib is fitted into the fitting groove when the center cover covers the cover opening.

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