JP5460885B2 - Front structure of motorcycle - Google Patents

Description

  The present invention relates to an improvement in the front structure of a motorcycle.

  In general, a turning operation of a motorcycle is performed by a front wheel steering device. An example of a front wheel steering device is disclosed in Patent Document 1.

  A front wheel steering device disclosed in Patent Document 1 includes a head pipe coupled to a vehicle body, a steering shaft inserted through the head pipe, having a top bridge at an upper end and an adder bracket (bottom bridge) at a lower end, A front fork that extends downward from the bottom bridge to support the front wheel, and a reinforcing shaft that is disposed rearward of the steering shaft and extends from the bottom bridge to the top bridge.

  Since the auxiliary shaft extends from the bottom bridge to the top bridge, the rigidity of the front wheel steering device can be secured even when the front fork does not extend to the top bridge. However, there is a problem that the bottom bridge becomes larger by providing the auxiliary shaft.

JP 2007-246071 A

  An object of the present invention is to provide a technique for downsizing a bottom bridge in a front structure of a motorcycle in which a front fork does not extend to a top bridge.

  According to the present invention, a vehicle body frame, a steering shaft that is rotatably attached to the vehicle body frame, a bottom bridge that is attached to a lower end of the steering shaft, and a front fork that extends downward from the bottom bridge and suspends a front wheel. And a handle connected to the upper end of the steering shaft for inputting steering force, and left and right extension members that reach the vicinity of the handle from the upper surface of the bottom bridge extend along the left and right longitudinal axes of the front fork. A front structure for a motorcycle is provided.

  Preferably, the lower end of the extension member is attached to the bottom bridge, and the upper end of the extension member is attached to the handle.

  Desirably, it further includes a headlight provided between right and left extending members arranged in the vehicle width direction, and the headlight is supported by the left and right extending member.

  In a preferred embodiment, the front structure further includes a meter unit disposed between left and right extending members arranged in the vehicle width direction, and the meter unit is supported by the left and right extending members.

  In a preferred form, the left and right extension members are configured to support the winker.

  Preferably, the left and right extending members include bridge portions that connect each other at the upper end. You may make it accommodate a key cylinder under this bridge | bridging part.

  Preferably, the handle is disposed behind the upper end of the extension member. The extension member is a hollow member having an open upper end, and a lid that covers a part of the upper end of the extension member and the handle is provided on the upper end of the extension member and the handle. It is done.

  Each extension member may be made of resin.

  Each extension member may have an article storage portion on the inside, and the lid may also serve as the lid of the article storage portion.

  In the first aspect of the invention, the pair of left and right extending members extend along the longitudinal axis of the left and right branch pieces of the front fork. In a conventional motorcycle in which the front fork does not extend above the bottom bridge, a steering shaft extends upward from the bottom bridge, and an auxiliary shaft extends from the bottom bridge in parallel with the steering shaft separately from the steering shaft. There is. However, if the auxiliary shaft extends from the bottom bridge, the area of the bottom bridge as viewed from the steering axis direction must be increased, leading to an increase in the size of the bottom bridge.

  In view of this point, in the first aspect of the invention, the left and right extending members that reach the vicinity of the handle from the upper surface of the bottom bridge extend along the longitudinal axis of the left and right branch pieces of the front fork. Since the left and right extending members reach the vicinity of the handle and the auxiliary shaft does not extend from the bottom bridge, the bottom bridge can be reduced in size.

  In the second aspect of the present invention, since the lower end of the extension member is attached to the bottom bridge and the upper end of the extension member is attached to the support portion, the upper end and the lower end of the extension member can be reliably attached to the front wheel suspension device.

  As described in claim 3, since the headlight is disposed between the left and right extending members, the length of the headlight protruding forward of the vehicle can be suppressed. Since the protrusion amount of the headlight to the front of the vehicle is suppressed, the front portion of the vehicle can be made compact.

  Moreover, since the headlight is supported by the left and right extending members, the headlight is supported without providing a separate headlight stay. Therefore, an increase in the number of parts can be suppressed.

  In the invention according to claim 4, the meter unit is disposed between the left and right extending members. For this reason, since the protrusion amount of the meter unit to the front of the vehicle is suppressed, the front portion of the vehicle can be made compact. Since the meter unit does not protrude forward, the vehicle can be made compact. The meter unit is supported by left and right extending members. The meter unit is supported without providing a separate meter unit stay. Therefore, an increase in the number of parts can be suppressed.

  As in the fifth aspect of the present invention, the left and right front blinkers are supported by the left and right extension members. Thereby, a winker is supported, without providing a winker stay separately. Therefore, an increase in the number of parts can be suppressed.

  According to the sixth aspect of the present invention, the left and right sides of the key cylinder in the vehicle width direction are concealed by the extension member, and the upper part of the key cylinder is concealed by the bridge portion.

  Since the upper end of the extension member and a part of the handle located on the vehicle rear side of the extension member are covered with the lid provided on the upper end of the extension member and the handle as in the invention described in claim 7, the extension member A sense of unity in the vehicle area from the vehicle to the steering wheel is obtained. As a result, the appearance of the vehicle is enhanced.

  As in the eighth aspect of the invention, since the extension member is formed of a resin material, the vehicle can be further reduced in weight as compared with the case of a metal extension member.

  As described in claim 9, each extension member includes an article storage portion on the inner side. Since the article can be stored inside the extension member, the vehicle dead space can be effectively utilized.

1 is a left side view of a motorcycle employing the present invention. Fig. 2 is an enlarged view of a main part of the motorcycle shown in Fig. 1. FIG. 3 is a view of the motorcycle of FIG. 2 as viewed in the direction of arrow 3. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. It is an enlarged view of the area | region 5 of FIG. FIG. 2 is an exploded view of the front wheel steering device for the motorcycle. It is a figure explaining the attachment point of an extending member. It is a perspective view of this front wheel steering device. It is a figure explaining the attachment point of a headlight and a blinker. It is a figure explaining the attachment point of a meter unit. It is a figure which shows the meter unit after attachment. 1 is a perspective view showing a front wheel steering device according to an embodiment of the present invention in comparison with a front wheel steering device according to a conventional example; It is sectional drawing which shows the front wheel steering apparatus by the Example of this invention, and the front wheel steering apparatus by a prior art example.

  Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, a motorcycle 10 as a saddle-ride type vehicle includes a vehicle body frame 11 having a head pipe 12 at a front end portion, and a front wheel steering device having a front wheel 13 provided so as to be steerable to the head pipe 12. 14, an engine 15 suspended from the vehicle body frame 11, and a rear wheel suspension device 18 extending rearward from the vehicle body frame 11 and having a rear wheel 17 are main components. The driving force of the engine 15 is transmitted to the rear wheel 17 via the chain 19.

  The vehicle body frame 11 includes a head pipe 12, a main frame 21 extending from the head pipe 12 to the rear of the vehicle, a seat rail 22 extending substantially horizontally from the rear end of the main frame 21 to the rear of the vehicle, and a front portion of the main frame 21. A down frame 23 extending downward from the main frame 21, a pivot frame 24 extending downward from the rear end of the main frame 21, and a sub-frame 25 passed between the pivot frame 24 and the seat rail 22 as main elements. To do.

  The front wheel steering device 14 supported by the head pipe 12 so as to be steerable includes a front wheel 13, a front fork 31 for suspending the front wheel 13, a bottom bridge 32 provided at an upper end of the front fork 31, and the bottom bridge. A steering shaft 33 that extends upward from 32 and is rotatably attached to the head pipe 12, and a handle 34 that is attached to the upper end of the steering shaft 33 and inputs a steering force. A front fender 36 is attached to the bottom bridge 32 to prevent mud splashing of the front wheel 13.

  An extension member 35 extends upward from the bottom bridge 32. The extension member 35 reaches the vicinity of the handle 34. A headlight 37, front blinkers 38 </ b> L and 38 </ b> R, and a meter unit 40 are attached to the extension member 35. A handle 34 is disposed behind the upper end of the extension member 35.

  The rear wheel suspension device 18 includes a swing arm 41 that extends rearward from the vehicle body frame 11 and supports the rear wheel 17 in a swingable manner, and a cushion unit 42 that is passed between the swing arm 41 and the vehicle body frame 11.

  An engine 15 is disposed below the main frame 21. The engine 15 includes a crankcase 45 and a cylinder 46 extending obliquely upward from the crankcase 45 in the vehicle. A throttle valve 47 is connected to the rear wall 46 b of the cylinder 46, and an air cleaner unit 48 is connected to the rear of the throttle valve 47. An exhaust pipe 43 is connected to the front wall 46 a of the cylinder 46, and the exhaust pipe 43 changes its direction toward the rear of the vehicle, and a silencer 44 is connected to the rear end of the exhaust pipe 43.

  A connecting tube 55 extends from the air cleaner unit 48 to the front of the vehicle, a throttle valve 47 is connected to the front end of the connecting tube 55, and an intake pipe 56 extends from the throttle valve 47. The intake pipe 56 is connected to the rear wall of the cylinder. 46b.

  A fuel tank 61 is disposed behind the handle 34 in the vehicle, the fuel tank 61 is covered with a tank cover 62, and a seat 63 on which an occupant sits is disposed so as to continue to the rear of the fuel tank 61 in the vehicle. The seat 63 is attached to the seat rail 22. A rear cowl 64 that covers the rear of the vehicle is attached to the seat rail 22, and a taillight 66 is attached to the rear cowl 64. A rear fender 65 that prevents mud splashed by the rear wheel 17 is attached to the seat rail 22, and left and right rear blinkers 39 </ b> L and 39 </ b> R (only the reference numeral 39 </ b> L on the front side of the figure is shown) is attached to the rear fender 65.

Next, the configuration of the fuel tank and its peripheral part will be described.
As shown in FIG. 2, a bulging member 71 is bulged upward from the front portion of the main frame 21, and the front end 61a of the fuel tank is supported on the upper surface 71a of the bulging member. A rear end 61 b of the fuel tank is supported at the rear portion of the main frame 21.

  Specifically, a first tank mounting portion 73 for attaching the front end 61a of the fuel tank is provided on the bulging member 71, and a first insertion portion 75 protruding upward is provided on the first tank mounting portion 73. Similarly, the body frame 11 is provided with a second tank mounting portion 74 for attaching the rear end 61b of the fuel tank, and the second tank mounting portion 74 is provided with a second insertion portion 76 that protrudes upward.

  The first tank attachment portion 73 is attached to the upper surface 71 a of the bulging member 71 extending from the main frame 21, and the second tank attachment portion 74 includes a tank attachment bracket 77. The tank mounting bracket 77 is attached to the rear portion of the main frame 21. Note that a sheet 63 is disposed above the second insertion portion 76 so as to hold the tank cover 62.

As shown in FIG. 3, a handle 34 is arranged in front of the fuel tank 61 in the vehicle, and a meter unit 40 is arranged in front of the handle 34 in the vehicle.
The first tank attaching portion 73 to which the fuel tank 61 is attached is provided at one place in the center in the vehicle width direction, and the second tank attaching portions 74 are provided on the left and right in the vehicle width direction.

  As shown in FIG. 4, the main frame 21 includes a gusset member 83 having a front end connected to the head pipe 12 and a plate-like member abutted from the left and right in the vehicle width direction, and a rear end of the vehicle from the rear end of the gusset member 83. And a center frame 84 having a square-shaped cross section.

  The first tank mounting portion 73 is provided with a first insertion portion 75 as a male screw member projecting upward, and the front end 61a of the fuel tank and the front end 62a of the tank cover are inserted into the first insertion portion 75. The first nut 85 is fastened together. Since the front end 61a of the fuel tank and the front end 62a of the tank cover are fastened together by the first nut (cap nut with flange) 85, compared to the case where the front end 61a of the fuel tank and the front end 62a of the tank cover are tightened separately, The number of mounting steps can be reduced, and the productivity related to assembly is increased.

A second tank mounting portion 74 is provided on the rear upper surface of the center frame 84, and a second insertion portion 76 as a male screw member protruding upward is provided on the second tank mounting portion 74.
The rear end 61b of the fuel tank is inserted into the second insertion portion 76 and fastened with the second nut 86, and then the rear end 62b of the tank cover is inserted into the second insertion portion 76, and the rear portion of the tank cover 62 is inserted. Was pressed by a pressing portion 89 provided on the sheet 63.

  A cylindrical member 91 constituting a fuel filler port extends upward from the upper surface of the fuel tank 61, and a lid member 92 is detachably attached to the cylindrical member 91. Since the upper end 91a of the tubular member extends to substantially the same height as the upper surface 62c of the tank cover, even when the fuel tank 61 is covered with the tank cover 62, the tubular member 91 is moved upward by a predetermined amount. By extending, this cylindrical member 91 can be covered with the tank cover 62, and the favorable external appearance property around a fuel filler opening is ensured.

  A plurality of ribs 94 extend in the vehicle width direction on the rear surface 62d of the tank cover at a position facing the upper surface 61c of the fuel tank. A predetermined rigidity is easily ensured by the plurality of ribs 94.

  In addition, the front end 62 a of the tank cover is attached to the gusset member 83 via the first elastic member 101, and the rear end 62 b of the tank cover is connected to the center frame 84 via the second elastic member 102 and the third elastic member 103. Installed on. Since the tank cover 62 is mounted on the elastic members 101 to 103, the vibration of the tank cover 62 can be suppressed in combination with the increased rigidity by the rib 94.

  Next, a connection structure between the steering shaft and the handle will be described. As shown in FIG. 5, a cylindrical connecting pipe 132 is attached to the upper end 33a of the steering shaft via a fastening member 131 so as to extend upward, and extends to the upper end of the connecting pipe 132 in the vehicle width direction. Thus, the handle 34 is joined. A connecting plate 133 for securely holding these three members is fastened together with a fastening member 131 across the steering shaft 33, the handle 34 and the connecting pipe 132.

  An extension member stay 135 extends from the upper part of the connecting plate 133 to the front of the vehicle, and a lid 136 is attached to the extension member stay 135 via a machine screw 137. The lid 136 supports the upper end 35 a of the extension member while closing the opening 138 opened at the upper end 35 a of the extension member 35. A key cylinder stay 142 that supports the key cylinder 141 extends from the lower end of the connecting plate 133 to the front of the vehicle.

  Next, the extension member mounting structure will be described. As shown in FIG. 6, the extension member stay 135 is attached to the connecting plate 133 fixed to the front wheel steering device 14, and the key cylinder stay 142 is attached to the connecting plate 133 below the extension member stay 135. ing. The extension member 35 has a lower end 35 b attached to the bottom bridge 32 and an upper end 35 a attached to the handle 34 via an extension member stay 135.

  Next, a procedure for attaching a member such as a headlight to the extension member will be described. As shown in FIG. 7, the left and right extension members 35 have left and right seats 143 formed at the upper rear portion. A bridge portion 144 to which the left and right extension members are coupled is provided at the upper ends 35a of the left and right extension members, and a flange portion 145 for fixing the meter unit 40 extends obliquely upward and forward from the bridge portion 144, and the bridge portion 144 has a key. A concave portion 146 for accommodating the cylinder 141 is formed, and left and right arm portions 147 attached so that the headlight 37 is sandwiched from the middle in the height direction of the left and right extending members 35 to the front of the vehicle.

  Returning to FIG. 6, as an attachment procedure of the extension member 35, the extension member 35 is set on the upper surface 32 f of the bottom bridge 32, and the left and right seat portions 143 formed on the upper end 35 a of the extension member are indicated by arrows via the third bolts 153. The extension member stay 135 is fastened as indicated by a, and the lower end 35b of the extension member is fastened to the attachment portion 148 provided on the side of the bottom bridge 32 as indicated by the arrow b via the fourth bolt 154.

  Since the upper end 35a and the lower end 35b of the extension member 35 are attached to the front wheel steering device 14 via the third bolt 153 and the fourth bolt 154, the extension member 35 can be securely attached to the front wheel steering device 14. it can.

  Next, the meter unit 40 is placed on the flange portion 145 as indicated by the arrow c, and the meter unit 40 is attached to the extension member 35 by screwing the fifth bolt 155 from below. Next, the front blinkers 38L and 38R are inserted into the blinker holes 157 opened in the left and right arm portions 147 from the left and right outside in the vehicle width direction as indicated by arrows d, and then fixed with the nuts 158, and the left and right arm portions 147 are fixed. The headlight 37 is set in the opened light hole 161 as indicated by an arrow e, and the headlight 37 is attached to the left and right arm portions 147 with a sixth bolt 156 (FIG. 9).

  Finally, the lid 136 is set on the upper end 35a of the extension member 35, and the lid 136 is fastened to the extension member stay 135 with the machine screw 137 as indicated by an arrow f. In addition, about an assembly | attachment procedure, it is not limited to the said procedure, If an assembly | attachment is possible, the order shall be changeable suitably.

  Hereinafter, although the assembly procedure is partly different from the above assembly procedure, a more specific structure and the like related to assembly will be described. Returning to FIG. 7, the extending member 35 is made of resin. The extension member 35 is a hollow member whose upper end 35 a is open, and an extension member stay 135 in which a lid 136 covering the upper end 35 a of the extension member and a part of the handle 34 is attached to the upper end 35 a of the extension member and the handle 34. Installed on.

  The lid 136 has a main body portion 163 that covers the upper end 35a of the extension member, and extends from the vehicle width direction center of the main body portion 163 to the rear of the vehicle and then to the rear of the vehicle, and above the connecting pipe 132 (FIG. 6) and the extension member stay 135. And a cover portion 164 having a hole 165 (FIG. 6) to which the machine screw 137 is attached.

  Referring also to FIG. 3, the upper end 35 a of the extension member 35 is covered by the main body portion 163 of the lid 136, and a part of the handle 34 located behind the vehicle of the extension member 35 is covered by the cover portion 164. A sense of unity of the vehicle can be obtained from the extension member 35 to the handle 34. As a result, the appearance of the vehicle is enhanced.

  The extension member 35 has an article storage section 166 inside, and the lid 136 also serves as a lid of the article storage section 166. Since articles can be stored inside the extension member 35, the vehicle dead space can be effectively utilized. Further, since the extending member 35 is a resin member, the vehicle can be reduced in weight as compared with the case where the extending member is formed of a metal member.

  A state in which the extension member 35 and the lid 136 are attached to the front wheel steering device 14 will be described with reference to FIG. As illustrated, left and right extending members 35 reaching the vicinity of the handle 34 from the upper surface 32 f of the bottom bridge 32 extend along the left and right longitudinal axes JL and JR of the front fork 31.

  The left and right extending member 35 includes a bridge portion 144 to which the left and right extending members 35 are coupled at the upper end 35a, and a concave portion 146 (FIG. 7) extending in the height direction is formed in the bridge portion 144. A key cylinder 141 is arranged. The key cylinder 141 extends to below the bridge portion 144. That is, the key cylinder 141 is accommodated below the bridge portion 144.

  Referring to FIG. 8 together with FIG. 2, the left and right in the vehicle width direction of the key cylinder 141 are concealed by the extension member 35, and the upper portion of the key cylinder 141 is concealed by the bridge portion 144, so the key cylinder 141 is not easily tampered with. can do.

  As shown in FIG. 9, after the front blinkers 38L and 38R are inserted into the blinker holes 157 opened in the left and right arms 147 from the left and right outside in the vehicle width direction, the front blinkers 38L and 38R are provided. The male screw portion 159 is fixed to the left and right arm portions 147 with nuts 158, the headlight 37 is set in the light holes 161 opened in the left and right arm portions 147, and the headlight 37 is attached to the left and right arms via the sixth bolt 156. Attach to part 147.

  Referring also to FIG. 3, a headlight 37 is disposed between a pair of left and right extension members 35 provided in the vehicle width direction, and the headlight 37 is supported by the pair of left and right extension members 35. Has been. The pair of left and right extending members 35 are members that support the front blinkers 38L and 38R.

  Since the headlight 37 is disposed between the pair of left and right extending members 35, the length of the headlight 37 protruding forward of the vehicle can be suppressed. Since the protrusion amount of the headlight 37 to the front of the vehicle is suppressed, the front portion of the vehicle can be made compact.

  The headlight 37 is supported by a pair of left and right extending members 35. The headlight 37 is supported without providing a separate headlight stay. Therefore, an increase in the number of parts can be suppressed.

  Further, the front blinkers 38L and 38R are supported by a pair of left and right extending members 35. The front winkers 38L and 38R are supported without a separate winker stay. Therefore, an increase in the number of parts can be suppressed.

Next, the mounting structure of the meter unit will be described.
As shown in FIG. 10, the meter unit 40 is placed on the flange portion 145 attached to the left and right extending members 35, and the fifth bolt 155 is inserted from below to attach the meter unit 40 to the flange portion 145.

As shown in FIG. 11, the meter unit 40 is attached to the flange portion 145 extending from the extension member 35.
Referring also to FIG. 3, a meter unit 40 is disposed between a pair of left and right extension members 35 provided in the vehicle width direction, and the meter unit 40 is supported by the pair of left and right extension members 35. Has been. Since the meter unit 40 is disposed between the pair of left and right extending members 35, the amount of protrusion of the meter unit 40 toward the front of the vehicle is suppressed. As a result, the front part of the vehicle can be made compact. Since the meter unit 40 does not protrude forward, the vehicle can be made compact.

  The meter unit 40 is supported by a pair of left and right extending members 35. The meter unit 40 is supported without providing a separate meter unit stay. Therefore, an increase in the number of parts can be suppressed.

  With reference to FIGS. 12A and 12B, the operation of the motorcycle front structure configured as described above will be described next. 12A and 12B, (a) shows a configuration according to the present invention in a perspective view and a (bb line) section, and (b) shows a configuration of a conventional example in a perspective view and a (dd line) section. The left and right extension members 35 extend upward along the left and right longitudinal axes JL and JR of the front fork 31 from the upper surface 32f of the bottom bridge.

  As shown in FIGS. 12A and 12B, the front fork 31 extends from the top surface 32Bf of the bottom bridge to the top bridge 168, and an intermediate portion in the height direction of the front fork 31 is attached to the bottom bridge 32B. The upper end of the fork 31 is attached to the top bridge 168.

In this case, if the front fork 31 extends upward from the bottom bridge 32, a top bridge 168 that supports the upper end of the front fork 31 is required.
In addition, the area of the bottom bridge 32 as viewed from the steering axis direction must be increased, leading to an increase in the size of the bottom bridge 32.

  12A and 12B, the left and right extension members 35 reaching the vicinity of the handle 34 (FIG. 1) from the upper surface 32f of the bottom bridge are respectively along the left and right longitudinal axes JL and JR of the front fork 31. The upper ends 35a are connected to a bridge portion 144 having a top bridge shape. The bridge portion 144 only needs to be rigid enough to support the upper ends 35a of the pair of left and right extension members. Accordingly, a rigid member such as the top bridge 168 is not necessary. Further, the only member extending upward from the bottom bridge 32 is the steering shaft 33, and other rigid members are not extended. As a result, the bottom bridge 32 can be reduced in size.

  In the motorcycle 10 in which the front fork 31 does not extend above the bottom bridge 32, an extension member 35 is disposed on the upper surface 32f of the bottom bridge so as to extend along the left and right longitudinal axes JL, JR of the front fork. Since the extension member 35 has an appearance like a front fork, a sporty impression can be given to the front portion of the vehicle, and the appearance of the vehicle is improved.

  Up to now, the case where the present invention is applied to a motorcycle has been described. However, the present invention can also be applied to a saddle-ride type tricycle and can be applied to a general saddle-ride type vehicle.

  The present invention is suitable for motorcycles.

  DESCRIPTION OF SYMBOLS 10 ... Motorcycle, 11 ... Body frame, 13 ... Front wheel, 32 ... Bottom bridge, 33 ... Steering shaft, 34 ... Steering wheel, 35 ... Extension member, 37 ... Headlight, 38L, 38R ... Blinker, 40 ... Meter unit, 136 ... Lid, 141 ... Key cylinder, 144 ... Bridge part, 166 ... Article storage part.

Claims (8)

A vehicle body frame, a steering shaft rotatably attached to the vehicle body frame, a bottom bridge attached to a lower end of the steering shaft, a front fork extending downward from the bottom bridge and suspending a front wheel, and the steering shaft In a front structure of a motorcycle, comprising: a handle connected to an upper end for inputting steering force; and left and right extension members extending from the upper surface of the bottom bridge to the vicinity of the handle along the left and right longitudinal axes of the front fork. ,
The motorcycle further includes a meter unit disposed between the pair of left and right extension members provided in the vehicle width direction, and the meter unit is supported by the pair of left and right extension members. Part structure.   The motorcycle front structure according to claim 1, wherein a lower end of the extension member is attached to the bottom bridge, and an upper end of the extension member is attached to the handle.   The front structure of a motorcycle according to claim 2, further comprising a headlight disposed between the pair of left and right extension members, the headlight being supported by the pair of left and right extension members.   The motorcycle front structure according to claim 2, wherein the pair of left and right extending members are configured to support a winker.   The motorcycle front structure according to claim 2, wherein the pair of left and right extending members includes a bridge portion that is connected at the upper end to the left and right, and a key cylinder is accommodated below the bridge portion. The handle is disposed behind the upper end of the extension member,
The automatic extension device according to claim 2, wherein the extension member is a hollow member having an open upper end, and a lid that covers a part of the upper end of the extension member and the handle is provided on the upper end of the extension member and the handle. Front structure of a motorcycle.   The motorcycle front structure according to claim 2, wherein the extension member is made of resin.   The front part structure of a motorcycle according to claim 2, wherein the extension member has an inside as an article storage portion, and the lid also serves as a lid of the article storage portion.

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