JP6540371B2 - Front body structure of a motorcycle - Google Patents

Description

  The present invention relates to a front portion structure of a motorcycle having excellent operability, in which a license bracket can be easily fastened to a cowling brace provided with a front cowling of the motorcycle.

  In some countries, it is mandatory to attach a license plate to the front of the body of a motorcycle.

  The mounting structure of the license plate differs depending on whether the license plate is attached to the front or rear of the motorcycle. The vehicle body front structure of a motorcycle, in which the license plate is attached to the vehicle body front of the motorcycle, is known from Patent Documents 1 and 2 and the like.

  In the vehicle body front structure of the motorcycle described in Patent Document 1, a mounting stay of a headlamp supporting member for supporting a headlamp disposed in front of the vehicle is attached to the vehicle body front. A license plate attachment portion integrally extended from the attachment stay to the front of the vehicle is integrally attached to the bottom of the attachment stay, and the head cowl covers the periphery of the headlamp with a front cowling.

  Further, in the motorcycle described in Patent Document 2, a front cowling covering a headlamp disposed in front of the vehicle is disposed in front of the vehicle body frame, and a plurality of license plate stays attached to a bottom surface of the front cowling are attached. It is made to fasten by attachment member.

Unexamined-Japanese-Patent No. 2013-112164 JP 2012-51444 A JP, 2008-105665, A

  In the invention described in Patent Document 1, the license plate attachment portion is integrally extended forward of the vehicle from the attachment stay attached to the front of the vehicle body, and the license plate attachment portion is integrally formed with the attachment stay. Ru. However, in the mounting structure of the license plate mounting portion, since the license plate mounting portion is integrally extended in a cantilever shape from the mounting stay toward the front of the vehicle, the mounting strength is apt to be insufficient. In addition, the license plate mounting portion integrally formed with the mounting stay is difficult and limited in providing a reinforcing structure for improving mechanical and physical strength.

  Furthermore, in the license plate mounting part configured integrally with the mounting stay, the appearance is important because the license plate mounting part is exposed to the outside at the front of the vehicle body even in countries where the front license plate is unnecessary. Poor appearance is apt to occur in the front part structure of the motorcycle.

  In the invention described in Patent Document 2, a license plate stay, which is a license plate attachment member, is attached to the bottom surface of the front cowl by tightening with a plurality of fastening members. For this reason, the number of tightening parts is large, and the mounting operation of the license plate stay is complicated by that amount, resulting in a gap, making it difficult to simplify the mounting operation.

  The present invention has been made in consideration of the above-mentioned circumstances, and promotes resinification of the license bracket of the license plate attachment member and the cowling brace to reduce the weight, and reduces the number of tightening parts of the license bracket for installation work. An object of the present invention is to provide a vehicle body front structure of a motorcycle that can be simplified and cost can be reduced.

  Another object of the present invention is to stably use a resin license bracket, which is a license plate attachment member, in a three-point support or three-point support by using a single tightening member at the bottom of a cowling brace which is a resin attachment member. Another object of the present invention is to provide a vehicle body front structure of a motorcycle that can be easily attached and can improve the mounting strength and rigidity of the license plate.

According to the present invention, in order to solve the above-mentioned problems, in a vehicle body front structure of a motorcycle provided with a front wheel suspension at the front of a vehicle body frame, an upper bracket and an under bracket of the front wheel suspension or a pair of fronts. A resinous cowling brace is fixed to the fork from the front, and the cowling brace is provided with a front cowling that covers the area around the headlamp, while a resin license bracket with a license plate is attached to the bottom of the cowling brace. The license bracket has reinforcing ribs extending in the front and rear direction on both left and right sides, and the reinforcing ribs are suspended on a pair of left and right holding projections provided on the bottom of the cowling brace, and the cowling brace is interposed between the reinforcing ribs of the license bracket Single clamp at the bottom of the In is fastened, the left and right pair of holding projections of the cowling brace slide groove extending in the longitudinal direction on opposite sides of the two retaining projections are formed, reinforcing the right and left side portions of the license bracket to the slide groove of the holding projections A vehicle body front structure of a motorcycle, wherein a rib is inserted and held from the front.

  In the present invention, resinification of the license bracket and the cowling brace can be promoted to reduce the weight, and since fastening can be performed using a single fastening member, the number of fastening parts can be reduced to simplify the mounting operation. To reduce costs.

  Furthermore, according to the present invention, the resin license bracket as the front license plate mounting portion can be stably and easily mounted by the three-point support or the three-point support using the single tightening member as the resin mounting member. The resin license bracket can improve mechanical and physical strength by providing required rigid ribs, improve the mounting strength of the front license plate, and increase rigidity.

Fig. 1 is a left side view of the entire motorcycle according to an embodiment of the present invention. The front view which looked at the two-wheeled motor vehicle shown by FIG. 1 from the vehicle front. BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which decomposes | disassembles and shows the vehicle body front structure of the two-wheeled motor vehicle which concerns on this embodiment. FIG. 1 is a perspective view of a vehicle body front structure of a motorcycle according to an embodiment as viewed from the left front. FIG. 1 is a perspective view of a vehicle body front structure of a motorcycle according to the present embodiment as viewed obliquely from the left rear. The perspective view which looked at the license bracket which attaches a license plate from the left front. FIG. 17 is a view from the lower left side illustrating the mounting state of the license bracket attached to the bottom of the cowling brace. The figure which shows the attachment state which attached the license plate and the license bracket to the cowling brace (of attachment member). The front view which looked at resin-made cowling braces from the front. The perspective view from the left rear which shows the cowling plate (of mounting member) which attached the license bracket of the license plate, and a meter unit in a state of disassembly. FIG. 1 is a perspective view of a vehicle body front structure of a motorcycle according to the present embodiment as viewed obliquely from the left rear.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.
[Embodiment]
FIG. 1 is a left side view showing the entire motorcycle according to an embodiment of the present invention, and FIG. 2 is a front view of the motorcycle shown in FIG. 1 as viewed from the front of the vehicle. In the figure, “front”, “rear”, “left”, and “right” indicate directions as viewed from the driver riding on the motorcycle 10.

  As shown in FIG. 1, the motorcycle 10 is provided at a front portion of the vehicle body frame 11 at a front portion of the vehicle body and supports a front wheel 12 in a steerable manner. The rear wheel suspension unit 15 supports the upper and lower pivotably, the engine 16 suspended at the center of the vehicle body frame 11 and driving the rear wheel 14, a fuel tank 17 provided above the engine 16, and a fuel tank The seat 17 is disposed behind the seat 17 and is configured to have a seat 18 on which the driver can sit.

  In the motorcycle 10, as shown in FIGS. 1 and 3, a head pipe 19 is provided at the front of a vehicle body frame 12 configured as a frame assembly structure. The stem shaft 21 which is a rotation shaft of the steering mechanism 20 is inserted into the head pipe 19 and provided rotatably. The stem shaft 21 of the steering mechanism 20 has an upper bracket 22 fixed to the upper portion and an under bracket 23 fixed to the lower portion, and the upper bracket 22 and the under bracket 23 are provided with front forks 24 forming a left-right pair. The handle 25 is mounted on the upper bracket 22 by the handle support 25a. The front wheel 12 is supported at the lower end portion of the left and right front forks 24 steered by the steering wheel 25 to constitute a front wheel suspension portion 13. By the turning operation of the steering wheel 25, the front wheel 12 is steered to the left and right around the stem shaft 21, and functions as a steering wheel.

Body cover structure of a motorcycle
As shown in FIG. 1, the vehicle body frame 11 of the motorcycle 10 is attached with a front cover 26 that covers the upper portion of the front fork 24 and the head pipe 19 forming the front wheel suspension 13 from the front of the vehicle. At the rear of the engine 16 of the vehicle body frame 11, the vehicle body frame 11 is covered with a side cover portion 27 which forms a left-right pair, and the rear of the side cover portion 27 is covered with a rear cover portion 28. The side cover portion 27 and the rear cover portion 28 are located below the fuel tank 17 and the seat 18 from the fuel tank 17 to the rear of the seat 18.

  Head lamps 30 and left and right front winkers 31 are mounted on the front cover portion 26 of the motorcycle 10 as shown in FIGS. 2 and 4. A meter unit 33 provided with instruments such as a speedometer 32 is installed on the top of the front cover portion 26 as shown in FIG. The front upper portion of the meter unit 33 is covered with a meter visor 34 and is blinded to protect the instruments of the meter unit 33.

License plate
In the motorcycle 10, as shown in FIGS. 1 to 3, the front license plate 35 is attached to the lower part of the vehicle body front structure formed on the vehicle body frame 11. The license plate 35 is obliged to attach the motorcycle 10 to the front of the vehicle, and is an essential item for legalized countries. In the motorcycle 10 used in these countries, a license plate 35 is attached below the headlamps 30 of the front cover portion 26 constituting the vehicle body front structure. The license plate 35 is in the form of a rectangular plate and is provided immediately below the headlamp 30. As shown in FIGS. 1 and 4, the license plate 35 is provided to project forward from the lower end of the headlamp 30 in the vehicle side view, and the front license plate 35 is directed obliquely upward at the vehicle front side. To be installed. The license symbol, code, mark, etc. written on the front of the license plate 35 may be displayed by applying a luminous paint or may be displayed as an LED lamp, in addition to the normal display.

  The license plate 35 is disposed between the front cover portion 26 and the front fender 36, as shown in FIGS. 1 and 2, and muddy water wound up by the front wheel 12 while the motorcycle 10 is traveling scatters on the license plate 35. To prevent it from sticking. The front license plate 35 is formed in a rectangular plate shape long in the vehicle width direction of the motorcycle 10, and is fastened by a fastening member such as a fastening screw to a plate mounting portion of the resin license bracket 38 which is a license plate support member. Ru. Reference numeral 37 denotes a rear fender that covers the upper side of the rear wheel 14.

License Bracket
The license bracket 38 is a plate-like license plate support member integrally molded in a wing shape by molding a resin material such as a synthetic resin. As shown in FIG. 6, the license bracket 38 is integrally formed by resin molding in the form of a wide wing in the left-right direction.

  The license bracket 38 includes a plate-shaped bracket main body 40 which is wide in the left-right direction, a plate attachment portion 41 which is inclined forward and downward at the front end of the bracket main body 40, and which also serves as reinforcement. A reinforcing rib portion 42 extending in the front and rear direction to both left and right end portions and having rear protruding portions 42a and 42a protruding backward from the left and right end portions, and extending and reinforcing in a chevron shape between the left and right reinforcing ribs A mountain-shaped rear edge 43 having a mounting hole 44 at the rear end thereof is integrally formed by molding of a resin material.

  The bracket main body 40 of the license bracket 38 is formed such that an inclined surface expanding from the mountain-shaped rear edge 43 toward the front plate attachment portion 41 is gently inclined downward in a diverging manner. The flared portion of the bracket body 40 is formed with a hollowed out opening 45. Although the reinforcement rib comprised in the left-right-both-ends part of the bracket main body 40 showed the example comprised in the recess structure, the rib shape of a reinforcement rib can consider various shapes, and is not limited to a recess structure.

  The license bracket 38 is a license plate support member for a resin molded product obtained by molding a resin material into a wing shape. The license bracket 38 has a reinforcing structure in which left and right side edges are formed by reinforcing ribs 42, a front end is a plate-like mounting portion 41 inclined downward to the front, and a rear edge is reinforced by a mountain-shaped rear edge 43. Even if the license bracket 38 is made of resin, mechanical and physical strength can be enhanced and sufficient rigidity can be maintained. Furthermore, since the license bracket 38 has the hollow portion formed by forming the opening 45 at the central portion of the bracket main body 40, weight reduction can be achieved.

[Installation structure of license bracket]
The resin license bracket 38 is mounted on the bottom (license bracket mounting portion 57) of the cowling brace 50 as a resin mounting member, as shown in FIGS. The cowling brace 50 is a resin molded product formed by molding a resin material such as a synthetic resin. The cowling brace 50 is fastened and fixed to a left and right front fork 24 or upper bracket 22 and an under bracket 23 provided on the front of the body frame 11 of the motorcycle 10. A front cowling 51 is installed on the cowling brace 50 from the front, and constitutes a front cover portion 26 in which the headlamps 30 are accommodated. The front cowling 51, which is a front cover member, covers the periphery of the headlamp 30 housed inside, and a resin license is applied to the bottom (license bracket attachment portion 57) of the resin cowling brace 50 supporting the front cowling 51 forward. The bracket 38 is attached. In the present embodiment, the cowling brace 50, the front cowling 51, and the license bracket 38 are all resin molded products, and the resinification is promoted to achieve weight reduction.

  The resinous cowling brace 50 is configured as shown in FIG. 9 in a front view of the vehicle. At the bottom of the cowling brace 50, box-like holding projections 52, 52 are provided in a left-right pair. The pair of left and right holding projections 52, 52 are provided with blind attachment holes that open forward. The rear projection 42a, 42a of the license bracket 38 is removably inserted into the mounting hole of the holding projection 52, 52, and a single tightening member 53 such as a tightening screw is inserted into the mounting hole 44 of the license bracket 38 inserted. Is inserted from below and fastened. The blind attachment holes of the holding projections 52, 52 are configured to have a complementary shape with the rear projections 42a, 42a so that the rear projections 42a, 42a of the license bracket 38 can be smoothly inserted into the holes. Ru.

  The license bracket 38 is held so that the projecting shapes of the rear projections 42a, 42a, which are paired left and right, are inserted into the mounting holes of the holding projections 52, 52 of the cowling brace 50 at the front. The mounting holes of the holding projections 52, 52 are configured as blind holes, and by inserting the rear projections 42a, 42a of the license bracket 38 until they abut the mounting holes of the holding projections 52, 52, The insertion position is easily positioned. With the rear projections 42a, 42a inserted into the holding projections 52, 52 of the cowling brace 50, suspended and positioned, a single tightening member such as a tightening screw from below in the mounting hole 44 of the license bracket 38 By inserting and tightening 53, the license bracket 38 is simply and stably attached and held at the bottom of the cowling brace 50 (which is a support member of the headlamp 30) with three-point support or three-point support.

  Furthermore, by embedding a nut, for example, in the bottom required position of the cowling brace 50, the resin license bracket 38 can be easily attached to the cowling brace 50 by the single fastening member 53. Moreover, the license bracket 38 and the cowling brace 50 are made of resin and can be reduced in weight, and the resin license bracket 38 can be attached to the cowling brace 50 with less tightening by tightening the single tightening member 53. It can be stably supported and fastened by the number of parts. Therefore, the resin license bracket 38 can be attached to the mounting member with the number of tightening parts reduced, and the weight reduction and cost reduction due to the reduction of the number of tightening parts can be achieved.

  Moreover, the mounting of the resin license bracket 38 to the cowling brace 50 is stabilized by three-point support or three-point support of the single tightening member 53 and the two left and right rear protruding portions 42a, 42a. And can be easily tightened and attached, simplifying the installation work.

  The resin license bracket 38 can be attached to the bottom of the resin cowling brace 50 from the lower side in a stable and removable manner. Moreover, the three-point support or the three-point support can be in the mounting support aspect of the isosceles triangle arrangement with the single tightening member 53 passed through the mounting hole 44 as the apex. The license bracket 38 inserts and suspends the left and right rear protrusions 42a and 42a on the support protrusions 52 and 52 of the cowling brace 50, and is simply tightened with the single tightening member 53, thereby providing the front portion of the vehicle body of the motorcycle 10. It can be attached easily and with good balance to the left and right. Therefore, the mounting and assembling operations of the license bracket 38 can be simplified.

  In the present embodiment, the mounting structure of the license bracket 38 to the cowling brace 50 forms a blind mounting hole opened forward in the left and right holding projections 52, 52 provided on the bottom of the cowling brace 50. Although an example has been shown, instead of providing the blind attachment holes in the holding projections 52, 52, slide grooves extending in the front-rear direction may be provided opposite to the pair of holding projections. The left and right sides of the license bracket 38 are reinforced by sliding the reinforcing ribs or rear protrusions 42a and 42a from the front into the slide grooves of the left and right holding protrusions 52 and 52, and the mounting hole 44 at the tip is a single tightening member Only by tightening at 53, the license bracket 38 of the license plate support member can be stably and easily attached to the bottom of the cowling brace 50 of the resin attachment member with three points or three points.

[Cowling brace]
The cowling brace 50 is a mounting member for a resin molded product integrally molded by molding a resin material such as a synthetic resin. The cowling brace 50 is an installation member of the front cowling 51, and as shown in FIGS. 9 and 10, a plate-like brace main body 55 having a brace mounting portion on the back side of the motorcycle 10 on the front side thereof. A meter unit attachment portion 56 bent forward to the top of the brace body 55, a license bracket attachment portion 57 bent forward to the bottom of the brace body 55, and side surfaces on both left and right sides of the brace body 55 The left and right winker attachment portions 58 extending forward are integrally formed by resin molding.

  On the front side of the brace body 55 of the cowling brace 50, a headlamp storage portion for accommodating and supporting the headlamp 19 is formed, while the cowling brace 50 is mounted with a front cowling 51 which is a front cover member from the vehicle front side. Thus, the vehicle body front structure of the motorcycle 10 is constructed.

  While various reinforcing ribs are appropriately provided on the front side of the cowling brace 50 to form a reinforcing structure, various openings are formed on the brace body 55 of the cowling brace 50, the meter unit attachment portion 56, and the winker attachment portion 58. And weight reduction is being achieved. The cowling brace 50 is provided with projecting bosses 60, 60; 61, 61 or projecting brackets on the back side of the brace body 55 at the top and bottom, and a pair of left and right projecting brackets are provided on the back side. Support holes for the projecting bosses 60, 60; A fastening member 63 such as a fastening screw is inserted from the front into each of the fastening members 63, and each fastening member 63 protrudes from the projecting bosses 60 and 61 of the brace body 55 to the back side and is installed.

  Further, the meter unit mounting portion 56 formed on the top of the cowling brace 50 is provided with a meter unit 33 in which instruments such as a speedometer 32 are assembled. The meter unit 33 is supported by the meter unit mounting portion 56 of the cowling brace 50 in a state where the meter unit 33 is installed in the meter unit mounting portion 56 of the cowling brace 50. The meter unit 33 is covered by a unit cover 65 from above. At the rear of the meter unit 33, a main switch 66 is provided. A meter visor 34 is provided on the front side of the meter unit 33 to constitute a sunshade of each device. The meter visor 34 is integrally provided on the front surface of the meter unit mounting portion 56 of the cowling brace 50 or the front surface of the unit cover 65 as shown in FIG.

  Further, the winker attachment portions 58 of the cowling brace 50 are formed with ear openings 67, 67, and the front winkers 31, 31 are attached to these ear openings 67, 67 from the outside on the left and right sides of the vehicle. .

  And the harness 68 which is cables etc. is derived | led-out from the speedometer 32 of meter unit 33, each measuring instrument, the headlamp 31, and the front winkers 31 and 31 grade | etc., Of right and left. The harness 68 extends from the back opening 69 of the brace body 55, as shown in FIG. The harnesses 68 led out from the brace body 55 of the cowling brace 50 are bundled, clamped by the harness fixing clamps 70 and 70, and guided to a battery, an engine control unit (ECU) or the like (not shown).

[Cowling brace mounting structure]
The cowling brace 50 is a resin attachment member (attachment part) configured by molding a resin material, and is attached to the front wheel suspension portion 13 constituting the vehicle body frame 11 of the motorcycle 10. The cowling brace 50 is fastened to the front fork 24 constituting the vehicle body front structure of the motorcycle 10, and the upper bracket 22 and the under bracket 23.

  Specifically, for example, as shown in FIG. 3, the cowling brace 50, which is a head lamp support member, has a mounting stem 73 and a mounting boss 74 attached to the upper bracket 22 and the under bracket 23 having the front fork 24 in a pair. It is attached through. A mounting stem 73 is integrally provided on the upper bracket 22, and the left and right mounting holes of the mounting stem 73 are mounted on the left and right projecting bosses 60 and 60 provided on the upper rear side of the brace body 55 or the mounting bracket The holes are facing each other. In the upper portion of the cowling brace 50, the mounting holes of the mounting stem 73 are aligned with the protruding bosses 60, 60 of the brace body 55, and are fastened by the fastening member 63.

  Further, protruding bosses 61 and 61 or mounting brackets are provided on the lower back side of the brace body 55 of the cowling brace 50 so as to be opposed to the left and right. The protruding bosses 61 and 61 of these brace bodies 55 are on the front side of the under bracket 23 It is aligned with the formed left and right mounting bosses 74, 74 and clamped through the clamping member 63. The cowling brace 50 is attached and fastened to the upper bracket 22 and the under bracket 23 at the back of the brace body 55.

  As described above, the cowling brace 50, which is a head lamp supporting member, can form the vehicle body front structure on the vehicle body frame 11 of the motorcycle 10 by, for example, tightening and attaching the upper bracket 22 and the under bracket 23.

  In the vehicle body front structure of the motorcycle 10 according to the present embodiment, the resin license bracket 38 attached with the front license plate 35 is attached to the bottom of the resin cowling brace 50 as a mounting member by a single fastening member 53 at three points. It can be attached stably and easily with support or three points of support.

  In countries where mounting of the license plate 35 at the front of the motorcycle 10 is unnecessary, the license bracket 38 can be removed from the bottom of the cowling brace 50 simply by operating the single fastening member 53. Therefore, the license plate 35 and the license bracket 38 can be easily removed from the vehicle front structure of the motorcycle 10.

  In this embodiment, the license plate 35 and the license bracket 38 can be easily attached and detached by the operation of the single tightening member 53, and the mounting operation (assembly operation) and the detachment of the license plate 35 and the license bracket 38 are performed. The operation of the work can be simplified. Even if the license plate 35 and the license bracket 38 are attached, they can be attached with a single fastening member 13, the number of fastening parts is small, and the license bracket is made of resin, so weight reduction can be achieved and cost can be reduced. be able to. Even if the license plate 35 and the license bracket 38 are removed, the appearance of the front portion of the vehicle body of the motorcycle 10 is not deteriorated.

[Effect of the embodiment]
In this embodiment, resinification of the license bracket 38 as the front license plate attachment member and the cowling brace 50 as the attachment member of the head lamp 30 supporting portion can be promoted to reduce the weight of the vehicle body front structure. The license bracket 38 can be fastened to the cowling brace 50 with a single fastening member 53, and the number of fastening parts is reduced to simplify the mounting work of the license plate 35 and the license bracket 38, thereby achieving cost reduction. be able to.

  The resin license bracket 38 can be fastened and fixed to the bottom of the resin cowling brace 50 at three points or at three points using the tightening screw which is a single tightening member 53, so it is stable. Can be mounted efficiently with a simple and easy mounting operation.

  Further, in the present embodiment, the resin license bracket 38, which is a front license plate support member, is stably attached to the bottom of the resin cowling brace 50 with three points or three points using a single tightening member 53. Since the number of tightening parts is small, the mounting operation can be simplified and the efficiency can be improved. In addition, attachment of the resin license bracket 38 to the cowling brace 50 by three-point support or three-point support is achieved by using the single tightening member (tightening screw) 53 as an apex, the left and right holding projections 52 of the cowling brace 50, Since the mounting of the isosceles triangle arrangement by 52, it can be considered as a stable mounting aspect.

  The license bracket and cowling brace, resinification of the front cowling can be promoted, and in the motorcycle aiming at global expansion, regardless of the presence of the front license plate, the specifications of the cowling brace, front cowling of the front cover parts, headlight peripheral parts It is possible to achieve commonality, and to improve the convenience of the vehicle body front structure of the motorcycle.

  Furthermore, in countries where the front license plate 35 is not required, removal of the license bracket 38 can be easily coped with, and removal of the license bracket 38 can be easily performed by removal of the single tightening member 53. Can. Even if the license bracket 38 is removed, the vehicle body front structure of the motorcycle can maintain a good appearance.

  Although the embodiment of the present invention shows an example applied to a motorcycle, it is also applicable to a three-wheeled vehicle, and can be applied to a general vehicle.

  The embodiments of the present invention are presented above by way of example and are not intended to limit the scope of the invention. These novel embodiments can be applied to a three-wheeled vehicle, can be implemented in various forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

  The present invention is suitably applied to a motorcycle and three wheels having a license plate attachment at the front of the vehicle.

  DESCRIPTION OF SYMBOLS 10 motorcycle, 11 vehicle body frame 12 front wheel 13 front wheel suspension 14 rear wheel 15 rear wheel suspension 16 engine 17 fuel tank 18 seat 19 head pipe DESCRIPTION OF SYMBOLS 20 ... Steering mechanism, 21 ... Stem shaft (rotational axis), 22 ... Upper bracket, 23 ... Under bracket, 24 ... Front fork, 25 ... Handle, 26 ... Front cover part, 27 ... Side cover part, 28 ... Rear cover part , 30: Head lamp, 31: front winker, 32: speedometer, 33: meter unit, 35: license plate, 36: front fender, 37: rear fender, 38: license bracket (license plate support member), 40: bracket Body, 41: Plate mounting portion, 42: Reinforcing rib portion, 42a: Back projection , 43: mountain-shaped rear edge, 44: mounting hole, 45: opening, 50: cowling brace (resin mounting member), 51: front cowling, 52: holding projection, 53: fastening member, 55: brace body, 56 ... meter unit mounting portion, 57 ... license bracket mounting portion, 58 ... winker mounting portion, 60, 61 ... protruding boss (projecting bracket), 63 ... tightening member (tightening screw), 65 ... unit cover, 66 ... main Switch 67 Ear opening 68 Harness (cables) 69 Rear opening 70 Harness fixing clamp 73 Mounting stem 74 Mounting boss.

Claims (4)

In a vehicle body front structure of a motorcycle provided with a front wheel suspension portion at the front of a vehicle body frame,
A resinous cowling brace is fixed from the front to the upper bracket and the under bracket of the front wheel suspension or the pair of front forks,
The cowling brace is provided with a front cowling covering a head lamp and a resin license bracket having a license plate is attached to the bottom of the cowling brace.
The license bracket includes reinforcing ribs extending in the front and rear direction on both left and right sides, the reinforcing ribs being suspended on a pair of left and right holding protrusions provided on the bottom of the cowling brace, and the cowling between reinforcing ribs of the license bracket It is fastened with a single clamping member at the bottom of the brace ,
The left and right pairs of holding projections of the cowling brace have slide grooves extending in the front-rear direction on opposite sides of both holding projections.
Reinforcing ribs on both left and right sides of the license bracket are inserted from the front into the slide grooves of the holding projection and held . The left and right pairs of holding projections of the cowling brace are respectively provided with mounting holes that open to the front side of the vehicle,
2. The vehicle body front structure of a motorcycle according to claim 1, wherein a rear projection of a reinforcing rib of said license bracket is inserted from the front into a mounting hole of said holding projection. The mounting hole provided in the holding projection of the cowling brace is a blind mounting hole that opens toward the front of the vehicle, and the blind mounting hole is a plug-in opposite side into which the rear projection of the reinforcing rib of the license bracket is inserted The front body structure of a motorcycle according to claim 2, which is closed. The single clamping member for clamping the license bracket to the bottom of the cowling brace is a clamping screw,
The tightening screw is provided at a rear edge of an intermediate portion which protrudes rearward between the left and right reinforcing ribs of the license bracket.
4. The vehicle body of a motorcycle according to any one of claims 1 to 3 , wherein said license bracket is attached to the bottom of said cowling brace at a three-point support or three-point support of a single tightening screw and a pair of left and right holding projections. Front structure.

Images