JP2012096607A - Knuckle guard mounting structure for saddle-riding type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a dynamic weight to be incorporated in a handle pipe while rigidly supporting a knuckle guard on the handle pipe.SOLUTION: A knuckle guard mounting structure for a saddle-riding type vehicle includes: a handle pipe 16 disposed on the car width direction outside of a bar handle 15; a grip 40 fixed to the outer peripheral surface 18 of the handle pipe 16; and a knuckle guard 50 disposed in front of the grip 40 and rigidly supported on the handle pipe 16 on the side of the grip 40. In the handle pipe 16, a dynamic weight 57 is supported to float via rubber members 48A and 48B. The handle pipe 16 includes an extended pipe part 45 extending from an outer end 40A to the car width direction outside. A holder member 60 is attached to an extended part outer peripheral surface 45A. A knuckle guard side connection part 59 is fastened to the holder member 60 by a knuckle guard fastening bolt 67.

Description

  The present invention relates to a knuckle guard mounting structure for a saddle riding type vehicle.

Conventionally, in a knuckle guard of a saddle-ride type vehicle, a structure is disclosed in which a wedge cylinder is inserted into an end portion of a handle pipe, and knuckle guards are fastened with bolts at two positions before and after the outer end portion of the wedge cylinder (for example, , See Patent Document 1). According to the structure of Patent Document 1, the knuckle guard can be rigidly attached to the end of the handle pipe.
Conventionally, a straddle-type vehicle in which a dynamic weight is built in a handle pipe is known (see, for example, Patent Document 2). According to the structure of Patent Document 2, the vibration of the handle pipe can be reduced by the dynamic weight.

JP-A-9-240542 Japanese Utility Model Publication No. 3-114490

By the way, there is a demand for attaching the knuckle guard rigidly supported by the handle pipe as in Patent Document 1 to the handle pipe incorporating the dynamic weight as in Patent Document 2. However, since the wedge cylinder and the dynamic weight are both inserted into the handle pipe, there is a problem that it is difficult to achieve both a structure for rigidly supporting the knuckle guard on the handle pipe and a structure incorporating the dynamic weight.
The present invention has been made in view of the above-described circumstances. In a knuckle guard mounting structure for a saddle-ride type vehicle, a dynamic weight can be built in the handle pipe while the knuckle guard is rigidly supported by the handle pipe. With the goal.

In order to achieve the above object, the present invention provides a handle pipe (16) provided on the outer side in the vehicle width direction of the handle (15) for steering the front wheel (3), and an outer periphery (18) of the handle pipe (16). A grip (40) to be attached; and a knuckle guard (50) disposed in front of the grip (40) and rigidly supported by the handle pipe (16) at a side of the grip (40). In the knuckle guard mounting structure of the saddle riding type vehicle, a dynamic weight (57) for reducing vibration transmitted to the handle (15) is floated and supported in the handle pipe (16) via elastic members (48A, 48B). The handle pipe (16) has an extending portion (45) extending outward in the vehicle width direction from the outer end (40A) of the grip (40). A holder member (60) for supporting the knuckle guard (50) is attached to the outer periphery (45A) of the portion (45), and the outer end (59) of the knuckle guard (50) is attached to the holder member (60). It is fastened by a fastening member (67).
According to this configuration, the handle pipe has an extending portion that extends outward in the vehicle width direction from the outer end of the grip, the holder member is attached to the outer periphery of the extending portion, and the outer end portion of the knuckle guard is the holder. Since the knuckle guard is rigidly supported by the handle pipe, the dynamic weight can be built in the handle pipe because the knuckle guard is rigidly supported by the member. Thereby, vibration of the handle pipe can be reduced by the dynamic weight while the knuckle guard is rigidly supported by the handle pipe.

In the above configuration, the knuckle guard (50) has an insertion hole (74) for the dynamic weight (57) in a portion adjacent to the fastening portion (73) to the holder member (60). The hole (74) and the dynamic weight (57) may be spaced apart.
In this case, the dynamic weight insertion hole of the knuckle guard and the dynamic weight are spaced apart from each other and the knuckle guard does not contact the dynamic weight, so that the damper effect of the dynamic weight is not hindered by the knuckle guard. For this reason, the vibration of the handle pipe can be effectively reduced.

Moreover, the said fastening part (73) and the said insertion hole (74) of the said knuckle guard (50) are distribute | arranged along with front and back, and the said fastening part (73) and the said insertion hole (74) are slits (75). It is good also as a structure by which the weak part (76) with a plate | board thickness smaller than the surrounding part is provided in the rear part of the said insertion hole (74) of the said knuckle guard (50).
In this case, when a load exceeding the set value is applied to the knuckle guard from the rear, the fragile part at the rear of the knuckle guard is released, and the knuckle guard may be pulled forward along the slit beyond the fastening member of the knuckle guard. It becomes possible. As a result, when a load exceeding the set value is applied, it is possible to prevent a large load from being applied to the handle pipe, the stay on the handle side, etc. it can.

Further, the holder member (60) includes a cylindrical part (62) through which the handle pipe (16) is inserted, and an axial side of the handle pipe (16) from an outer end in the vehicle width direction of the cylindrical part (62). The structure which has a flange part (64) extended in this may be sufficient.
In this case, the holder member can be easily positioned on the handle pipe by the flange portion.
Further, the holder member (60) is cleaved to the handle pipe (16), a fastening bolt (70) for cleaving the holder member (60) is fastened from the rear, and the knuckle guard (50) is It is good also as a structure which covers the said holder member (60) from back by the rear part of the said insertion hole (74) of a knuckle guard (50).
In this case, since the fastening bolt of the holder member is covered with the knuckle guard, the fastening bolt can be protected and the appearance can be improved.

  In the straddle-type vehicle knuckle guard mounting structure according to the present invention, the holder member is attached to the outer periphery of the extending portion that extends outward in the vehicle width direction from the outer end of the grip, and the outer end of the knuckle guard is attached to the holder member. Since the knuckle guard is rigidly supported on the handle pipe, the dynamic weight can be built in the handle pipe. Thereby, vibration of the handle pipe can be reduced by the dynamic weight while the knuckle guard is rigidly supported by the handle pipe.

In addition, since the dynamic weight insertion hole and the dynamic weight are spaced apart and the knuckle guard does not contact the dynamic weight, the damper effect of the dynamic weight is not hindered by the knuckle guard.
In addition, when a load exceeding the set value is applied to the knuckle guard from the rear, the knuckle guard can be pulled forward. As a result, when a load exceeding the set value is applied, it is possible to prevent a large load from being applied to the handle pipe, the stay on the handle side, etc. it can.

Further, the holder member can be easily positioned on the handle pipe by the flange portion.
Further, since the fastening bolt of the holder member is covered with the knuckle guard, the fastening bolt can be protected and the appearance can be improved.

1 is a left side view showing a front portion of a motorcycle according to an embodiment of the present invention. It is the left view which looked at the bar handle from the vehicle left side. It is the top view which looked at the left part of the bar handle from upper direction. It is the figure which looked at the left part of the bar handle from back. It is VV sectional drawing in FIG. It is the expanded sectional view which expanded the vicinity of the extension pipe part in FIG. It is a figure which shows a holder member. It is VIII-VIII sectional drawing in FIG. It is the figure which looked at the knuckle guard side connection part of the knuckle guard in the arrow direction in FIG. It is a left view which shows the vicinity of a front cowl. It is a left view of the vehicle front part in the state which removed the front cowl. It is a top view of the vehicle front part in the state which removed the front cowl. It is XIII-XIII sectional drawing in FIG.

  Hereinafter, a knuckle guard mounting structure for a straddle-type vehicle according to an embodiment of the present invention will be described with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle described below unless otherwise specified. In the figure, the arrow FR indicates the front of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow LH indicates the left side of the vehicle.

FIG. 1 is a left side view showing a front portion of a motorcycle according to an embodiment of the present invention.
In the motorcycle 1 (saddle-ride type vehicle), an engine 2 is mounted substantially in the center in the longitudinal direction of the vehicle body, a front wheel 3 is disposed in front of the engine 2, and a rear wheel (not shown) is disposed behind the engine 2. It is a saddle type vehicle.
The front wheel 3 is rotatably supported by a pair of left and right front forks 4, and a bottom bridge 5 and a top bridge 6 are installed on top of the pair of front forks 4 in order from the lower side. A steering shaft 8 extending in parallel with the front fork 4 is provided between the bottom bridge 5 and the top bridge 6. A head pipe 10 that supports the steering shaft 8 is provided at the front end of the vehicle body frame 9, and the front fork 4 is rotatably supported by the head pipe 10 via the steering shaft 8.

The vehicle body frame 9 has a main frame 9A extending rearwardly downward from the head pipe 10 above the engine 2, and the fuel tank 7 is provided above the main frame 9A.
The head pipe 10 and the front part of the main frame 9 </ b> A are covered with a pair of left and right front cowls 11. A headlight unit 20 is provided at the front part of the front cowl 11, and a wind screen 21 extending upward is provided at the upper part of the front cowl 11. A pair of left and right turn signals 22 are provided behind the headlight unit 20.

A handle holder 12 is provided on the upper surface of the top bridge 6, and the handle holder 12 includes a lower holder 13 provided on the upper surface of the top bridge 6 and an upper holder 14 attached to the upper portion of the lower holder 13. A bar handle 15 (handle) extending in the vehicle width direction is sandwiched between the lower holder 13 and the upper holder 14 and fixed to the handle holder 12. The bar handle 15 that steers the front wheel 3 is configured by a single metal pipe that extends in the vehicle width direction, and the center portion is supported by the handle holder 12 and extends left and right.
Below the bar handle 15, a handle cover 11A that covers the periphery of the handle holder 12 is provided. The bar handle 15 is provided with a pair of left and right side mirrors 23.

FIG. 2 is a left side view of the bar handle 15 as seen from the left side of the vehicle. FIG. 3 is a plan view of the left portion of the bar handle 15 as viewed from above. FIG. 4 is a view of the left part of the bar handle 15 as viewed from the rear.
As shown in FIGS. 2 and 3, the bar handle 15 has handle pipes extending left and right from the central portion supported by the handle holder 12, and includes a left handle pipe 16 and a right handle pipe (not shown). A grip 40 that is held by the driver of the motorcycle 1 is attached to each end. The grip 40 is formed by forming a resin material into a cylindrical shape, and is inserted from the outer end of the handle pipe 16 and attached to the outer peripheral surface 18 of the handle pipe 16 (the outer periphery of the handle pipe).

A switch housing 41 in which various switches such as a winker switch are accommodated is provided adjacent to the grip 40 on the inner side in the vehicle width direction of the grip 40 in the handle pipe 16.
A master cylinder 42 of a hydraulic clutch is provided adjacent to the switch housing 41 on the inner side in the vehicle width direction of the switch housing 41 in the handle pipe 16. The master cylinder 42 is fixed to the handle pipe 16 by a master cylinder holder 43 provided so as to sandwich the handle pipe 16 with the master cylinder 42. The master cylinder 42 is provided with a side mirror 23 and a clutch lever 42A operated by the driver.

  A knuckle guard 50 is attached to the handle pipe 16 to cover the driver's hand holding the grip 40 from the front. The knuckle guard 50 is formed by integrally molding a resin material. The knuckle guard 50 is attached to the center side of the bar handle 15 and extends outward in the vehicle width direction. The knuckle guard 50 extends outward while bulging forward from the inner fixed portion 51. It has a bulging portion 52 and an outer fixing portion 53 that extends rearward from the bulging portion 52 and is fixed to the outer end portion 16 </ b> A of the handle pipe 16. Specifically, the master cylinder 42 is covered forward by the inner fixing portion 51, and the clutch lever 42 </ b> A and the grip 40 are covered front and side by the bulging portion 52 and the outer fixing portion 53. That is, the knuckle guard 50 is a so-called closed type knuckle guard in which the outer fixing portion 53 is fixed to the outer end portion 16A of the handle pipe 16 and covers the side surface side of the handle pipe 16.

  On the other hand, the right handle pipe (not shown) has a cylindrical throttle tube (not shown) rotatably provided on the outer periphery of the handle pipe, a front brake master cylinder (not shown), and a switch box ( (Not shown) etc. are provided. In the right handle pipe, the grip is disposed on the outer periphery of the handle pipe by being attached to the outer periphery of the throttle tube. The knuckle guard is also provided in the right handle pipe in the same manner as the left handle pipe 16 and covers the front of the grip and is fixed to the outer end portion of the right handle pipe. In this embodiment, the knuckle guard is the right knuckle guard. The detailed description of is omitted.

Hereinafter, the attachment structure of the knuckle guard 50 will be described in detail.
The knuckle guard 50 is attached to the bar handle 15 by fixing the ends of the inner fixing portion 51 and the outer fixing portion 53 to the handle pipe 16.
As shown in FIG. 3, the inner fixing portion 51 of the knuckle guard 50 is fastened to a fastening holder 44 provided inside the master cylinder 42 in the handle pipe 16. Further, the inner fixing portion 51 is formed with a claw portion 51 </ b> A (FIG. 3) extending downward, and the claw portion 51 </ b> A is engaged with an engagement hole 44 </ b> A formed in the lower portion of the fastening holder 44.

5 is a cross-sectional view taken along the line VV in FIG.
As shown in FIGS. 2 to 5, the handle pipe 16 has an extension pipe portion 45 (extension portion) that extends outward from the outer end 40 </ b> A of the grip 40 in the vehicle width direction. A holder member 60 protruding to the front side of the vehicle is fixed to the outer peripheral surface 45 </ b> A of the extended portion of the extended pipe portion 45.
A knuckle guard side connecting portion 59 (outer end portion) formed at the rear end of the outer fixing portion 53 of the knuckle guard 50 is located at the outer end in the vehicle width direction of the knuckle guard 50, and the knuckle guard 50 is located on the knuckle guard side. The connecting portion 59 is connected to the handle pipe 16 by being fastened to the holder member 60.

  As shown in FIG. 5, a cylindrical inner weight 47 is inserted into the hollow handle pipe 16. The inner weight 47 extends from the inner end portion of the grip 40 to a portion corresponding to the extending pipe portion 45 inside the handle pipe 16, and is an inner end provided to project radially from the outer peripheral surface of the inner weight 47. The side rubber member 48A and the outer end side rubber member 48B are floatingly supported.

The inner weight 47 has annular groove portions 49 formed on the outer peripheral surface at both ends, and the inner end side rubber member 48 </ b> A and the outer end side rubber member 48 </ b> B are engaged with the respective groove portions 49. That is, the inner weight 47 is floatingly supported by the inner end side rubber member 48 </ b> A and the outer end side rubber member 48 </ b> B so that the outer peripheral surface thereof does not contact the inner peripheral surface of the handle pipe 16. Here, the inner end side rubber member 48A and the outer end side rubber member 48B are elastic members made of rubber.
Further, at the outer end of the inner weight 47, a step portion 47A in which a part of the end surface is recessed is formed, and a screw hole portion 47B extending in the axial direction is formed.

A columnar outer weight 55 is connected to the outer end of the inner weight 47 so as to protrude further outward in the vehicle width direction than the extending pipe portion 45. The outer weight 55 has a through hole 55A penetrating in the axial direction, and is fixed to the inner weight 47 by a bolt 56 that is inserted into the through hole 55A and fastened to the screw hole portion 47B of the inner weight 47. A convex portion 55B that engages with the step portion 47A of the inner weight 47 is formed at the inner end of the outer weight 55, and the bolt 56 is tightened with the step portion 47A and the convex portion 55B engaged. Rotation of the inner weight 47 during the assembling work can be prevented, and the outer weight 55 can be easily assembled.
The inner weight 47 and the outer weight 55 are integrally connected to form a dynamic weight 57 that reduces vibration transmitted to the handle pipe 16. The dynamic weight 57 is made of metal and is adjusted to a predetermined weight so that vibration can be efficiently suppressed.

FIG. 6 is an enlarged cross-sectional view in which the vicinity of the extended pipe portion 45 in FIG. 5 is enlarged.
As shown in FIG. 6, a support ring 58 for positioning the inner weight 47 in the handle pipe 16 is provided inside the extended pipe portion 45.
The support ring 58 protrudes to the inner peripheral side of the cylindrical portion 58A and the outer peripheral side of the cylindrical portion 58A provided between the outer peripheral surface of the outer end side rubber member 48B and the inner peripheral surface of the extension pipe portion 45. An engaging convex portion 58B that engages with the engaging groove 46 on the outer peripheral surface of the rubber member 48B, an engaging claw 58C that protrudes to the outer peripheral side of the cylindrical portion 58A, and an outer end portion of the cylindrical portion 58A on the outer peripheral side. A projecting outer end flange portion 58D.

On the inner peripheral surface of the extension pipe portion 45, a recess 45B is formed in which the engagement claw 58C of the support ring 58 is engaged. The engaging claw 58 </ b> C is formed by cutting and raising the cylindrical portion 58 </ b> A toward the outer peripheral side, and protrudes toward the outer end side of the extended pipe portion 45.
When the inner weight 47 is inserted into the handle pipe 16 in a state where the engagement convex portion 58B of the support ring 58 is engaged with the outer end side rubber member 48B, the engagement claw 58C becomes the concave portion 45B of the extension pipe portion 45. The inner weight 47 is positioned in the axial direction. Further, in this state, the outer end flange portion 58D abuts on the outer end surface 45C of the extended pipe portion 45, so that the inner weight 47 can be positioned more firmly in the axial direction.

7 is a view showing the holder member 60, FIG. 7 (a) is a left side view, and FIG. 7 (b) is a view seen in the direction of arrow B in FIG. 7 (a). 8 is a cross-sectional view taken along line VIII-VIII in FIG.
As shown in FIGS. 5 to 8, the holder member 60 includes a block-shaped holder main body 61, a pipe fitting hole 62 (cylinder portion) through which the extended portion outer peripheral surface 45 </ b> A of the extended pipe portion 45 is inserted, The knuckle guard side connecting portion 59 is configured to include a holder side connecting portion 63 to which the knuckle guard side connecting portion 59 is connected.

The pipe fitting hole 62 is a cylindrical hole penetrating in the vehicle width direction, and a flange portion 64 extending radially inward toward the shaft side of the handle pipe 16 is formed at the outer end of the pipe fitting hole 62. Has been. The holder member 60 is positioned in the axial direction of the handle pipe 16 by the flange portion 64 coming into contact with the outer end surface 45C side of the extended pipe portion 45. Specifically, the outer end flange portion 58D of the support ring 58 is sandwiched between the flange portion 64 and the outer end surface 45C, and the support ring 58 is prevented from coming off by being pressed by the holder member 60. ing. For this reason, the inner weight 47 can be more reliably fixed.
An arcuate outer peripheral portion 61 </ b> A is formed along the pipe fitting hole 62 above and behind the pipe fitting hole 62 in the holder main body 61.

  Further, as shown in FIG. 7, a notch portion 65 for positioning the holder member 60 in the circumferential direction of the extended pipe portion 45 is formed at the rear portion of the holder member 60. A positioning mark 66 (see FIG. 7B) is engraved on the extending portion outer peripheral surface 45A of the extending pipe portion 45, and the holder member 60 is arranged so that the notch portion 65 is aligned with the positioning mark 66. Thus, the holder member 60 can be provided at a correct position.

  The holder side connecting portion 63 is formed to extend from the pipe fitting hole 62 to the front side of the vehicle, and the holder side connecting portion 63 has a screw hole 63A. The screw hole 63A extends in the vehicle width direction, and a knuckle guard fastening bolt 67 (fastening member) for fixing the knuckle guard 50 to the holder member 60 is fastened to the screw hole 63A.

  A screw hole 68 is formed below the pipe fitting hole 62 at the rear part of the holder body 61 so as to be substantially orthogonal to the axial direction of the pipe fitting hole 62. In addition, an opening 69 that allows the pipe fitting hole 62 to communicate with the outside in the radial direction is formed in the lower part of the holder body 61, and is opened by tightening a fastening bolt 70 (see FIG. 8) into the screw hole 68. The interval between the portions 69 is narrowed and the pipe fitting hole 62 is reduced in diameter, and the pipe fitting hole 62 strongly sandwiches the extended pipe portion 45, whereby the holder main body 61 is fixed to the extended pipe portion 45. That is, the holder member 60 is fixed to the extended pipe portion 45 by so-called split tightening.

FIG. 9 is a view of the knuckle guard side connecting portion 59 of the knuckle guard 50 in FIG. Here, in FIG. 9, only the knuckle guard side connecting portion 59 is illustrated, and the outer weight 55 and the like are not illustrated.
As shown in FIGS. 2, 3, 6, and 9, the knuckle guard side connecting portion 59 includes a side plate portion 71 that forms the left side surface of the knuckle guard side connecting portion 59, and a vehicle width from the edge of the side plate portion 71. And a wall 72 extending inward in the direction. The wall portion 72 is provided continuously along the edge portion of the side plate portion 71 and covers the upper, rear and lower sides of the holder member 60.
As shown in FIG. 6, the upper portion of the rear side wall portion 72 </ b> A that covers the rear of the holder member 60 in the wall portion 72 is fitted to the arc-shaped outer peripheral portion 61 </ b> A of the holder member 60 to support the holder member 60.

  2, 4, 6, and 8, the fastening bolt 70 that fixes the holder member 60 is inserted into the screw hole 68 from the rear side of the vehicle and fastened. The rear surface of the holder member 60 including the knuckle guard 50 is covered with a rear side wall portion 72A. As described above, since the rear surface side of the holder member 60 is covered with the knuckle guard 50, the attachment structure of the knuckle guard 50 can be clearly shown without visually confirming the fastening bolt 70, and the holder member 60 can be protected. it can.

  A through hole 73 (fastening portion) through which the knuckle guard fastening bolt 67 is inserted is formed in the side plate portion 71. The knuckle guard fastening bolt 67 has a positioning shaft portion 67 </ b> A (see FIG. 6) that fits into the through hole 73, positions the knuckle guard side connecting portion 59, and is fixed to the holder member 60.

  In the side plate portion 71, a weight insertion hole 74 (insertion hole) through which the outer weight 55 is inserted is formed behind the through hole 73. As shown in FIG. 6, the outer weight 55 has a small diameter portion 55 </ b> C inserted through the weight insertion hole 74, and the small diameter portion 55 </ b> C has a smaller diameter than the large diameter portion 55 </ b> D exposed to the outside.

As shown in FIG. 6, in the state assembled to the handle pipe 16, the outer weight 55 is connected to the inner weight 47 through the weight insertion hole 74, and the large diameter portion 55D and the small diameter portion 55C are connected to the weight insertion hole 74. Are spaced apart from each other. Further, the outer weight 55 and the inner weight 47 are disposed so as to be separated from the holder member 60 and the support ring 58.
That is, a gap S is provided between the knuckle guard 50, the holder member 60 and the support ring 58 and the dynamic weight 57, and the dynamic weight 57 does not contact the knuckle guard 50, the holder member 60 and the support ring 58. For this reason, the vibration of the handle pipe 16 can be effectively damped by the dynamic weight 57.

  As described above, in the present embodiment, the holder member 60 is fixed to the outer peripheral surface 45A of the extended pipe portion 45 that extends outward from the outer end 40A of the grip 40, and the knuckle guard side is attached to the holder member 60. By fastening the connecting portion 59, the knuckle guard 50 can be rigidly supported on the handle pipe 16 without using the space inside the handle pipe 16. Since the dynamic weight 57 is provided using the space inside the handle pipe 16, the dynamic weight 57 can be built into the handle pipe 16 while the knuckle guard 50 is rigidly supported by the handle pipe 16. Therefore, vibration of the handle pipe 16 can be effectively reduced by the dynamic weight 57 while the knuckle guard 50 is rigidly supported to improve the attachment strength of the knuckle guard 50 to the handle pipe 16.

As shown in FIGS. 2 and 9, the through hole 73 and the weight insertion hole 74 are arranged adjacent to each other in the longitudinal direction of the vehicle, and the through hole 73 and the weight insertion hole 74 have the side plate portion 71 in the front and rear direction. The slits 75 are connected to each other.
Further, in the rear portion of the weight insertion hole 74, a fragile portion 76 having a smaller plate thickness than the surrounding portion is formed in the vicinity of the rear side wall portion 72A. Since the fragile portion 76 has a small plate thickness, the strength is lower than the surrounding portion. The dimension of the fragile portion 76 is set so as to be broken when a load larger than a predetermined value is applied to the fragile portion 76, and is particularly set for a load that presses the knuckle guard 50 forward. .

Here, when the load that presses the knuckle guard 50 forward is applied to the knuckle guard 50 beyond the predetermined value, the fragile portion 76 is broken and is pushed and spread to the outer weight 55 so that the weight insertion hole 74 is pushed. Is released, and the knuckle guard fastening bolt 67 can move relatively to the rear side of the knuckle guard 50 through the slit 75, and the knuckle guard side connecting portion 59 moves forward and comes off the handle pipe 16.
Accordingly, when a large load is applied to the knuckle guard 50, the knuckle guard 50 is preferentially broken, and the load acting on the handle pipe 16 is reduced. Therefore, it is possible to prevent the handle pipe 16 from being affected by an external force. For this reason, it is possible to save time and labor for replacement due to damage to the bar handle 15, and to reduce the cost of purchasing parts.

Next, a procedure for attaching the knuckle guard 50 will be described.
As shown in FIGS. 5 and 6, first, the inner end side rubber member 48A, the outer end side rubber member 48B, and the support ring 58 are set on the inner weight 47, and the inner weight 47 is in a state where the grip 40 is attached. Insert into handle pipe 16. The inner weight 47 is fixed in the handle pipe 16 by engaging the engaging convex portion 58B and the outer end flange portion 58D with the concave portion 45B and the outer end surface 45C.
Next, the pipe fitting hole 62 is inserted into the extension pipe portion 45 to place the holder member 60 on the handle pipe 16, and the fastening bolt 70 is fastened from the rear side to fix the holder member 60 to the extension pipe portion 45. At this time, the flange portion 64 is brought into contact with the outer end flange portion 58D and the notch portion 65 (see FIG. 7B) is aligned with the positioning mark 66, whereby the holder member 60 is moved to the axis of the extension pipe portion 45. It can be accurately positioned in the direction and circumferential direction.

Next, the inner fixing portion 51 of the knuckle guard 50 is fixed to the fastening holder 44 (see FIG. 3), and the knuckle guard side connecting portion 59 is attached to the holder member 60 so that the rear side wall portion 72A is fitted into the arc-shaped outer peripheral portion 61A. The knuckle guard 50 is fixed to the handle pipe 16 by setting and fastening the knuckle guard fastening bolt 67.
Thereafter, the outer weight 55 is passed through the weight insertion hole 74 of the knuckle guard 50, and the outer weight 55 is connected to the inner weight 47 by the bolt 56. At this time, since the convex portion 55B engages with the stepped portion 47A, the inner weight 47 can be prevented from rotating, and the outer weight 55 can be easily fixed by tightening the bolt 56 from the outside.

  As described above, according to the embodiment to which the present invention is applied, the handle pipe 16 has the extended pipe portion 45 that extends from the outer end 40A of the grip 40 to the outer side in the vehicle width direction, and the extended pipe portion. Since the holder member 60 is attached to the outer peripheral surface 45A of the extended portion 45 and the knuckle guard side connecting portion 59 of the knuckle guard 50 is fastened to the holder member 60, the knuckle guard 50 is rigidly supported by the handle pipe 16. The dynamic weight 57 can be built in the handle pipe 16. Thereby, the vibration of the handle pipe 16 can be reduced by the dynamic weight 57 while the knuckle guard 50 is rigidly supported by the handle pipe 16.

  Further, the weight insertion hole 74 of the knuckle guard 50 and the dynamic weight 57 are spaced apart from each other with a gap S, and the knuckle guard 50 does not contact the dynamic weight 57, so that the damper effect of the dynamic weight 57 is effective for the knuckle guard. 50 is not obstructed. For this reason, the vibration of the handle pipe 16 can be effectively reduced.

  Further, when a load exceeding the set value is applied to the knuckle guard 50 from the rear side, the fragile portion 76 on the rear side wall portion 72A side of the knuckle guard 50 is opened, and the knuckle guard 50 exceeds the knuckle guard fastening bolt 67 and the slit 75. It is possible to escape forward along. As a result, when a load exceeding the set value is applied, the deformation of the stays such as the handle pipe 16 and the holder member 60 can be prevented by letting the load escape to the knuckle guard 50, so that the replacement cost of the parts can be suppressed. .

Further, the holder member 60 can be easily positioned on the handle pipe 16 by the flange portion 64 of the holder member 60, and the assembly is facilitated.
Further, since the fastening bolt 70 of the holder member 60 is covered with the rear side wall portion 72A of the knuckle guard 50, the fastening bolt 70 can be protected and the appearance can be improved by making the fastening bolt 70 invisible from the outside.

In addition, the said embodiment shows the one aspect | mode which applied this invention, Comprising: This invention is not limited to the said embodiment.
In the above embodiment, the inner weight 47 and the outer weight 55 are described as constituting the dynamic weight 57. However, the present invention is not limited to this, for example, without providing the outer weight 55. Only the inner weight 47 may be provided, and accordingly, the weight insertion hole 74 may not be provided in the knuckle guard 50.
In the above embodiment, the knuckle guard 50 has been described as being provided on the bar handle 15, but the present invention is not limited to this, and the knuckle guard 50 is a so-called separate handle that is separated on the left and right. It may be attached. In this case, the holder member 60 is fixed to an extending portion that extends outward in the vehicle width direction from the outer end of the grip of the separate handle, and the knuckle guard side connecting portion 59 is fixed to the holder member 60 and is inserted into the pipe of the separate handle. An inner weight 47 is incorporated. In the above embodiment, the straddle-type vehicle to which the present invention is applied is the motorcycle 1, but the present invention can also be applied to a three-wheeled vehicle, a four-wheeled buggy, and the like.

Next, the inner structure of the front cowl 11 will be described.
FIG. 10 is a left side view showing the vicinity of the front cowl 11. FIG. 11 is a left side view of the front portion of the vehicle with the front cowl 11 removed. FIG. 12 is a plan view of the front portion of the vehicle with the front cowl 11 removed.
As shown in FIGS. 10 to 12, on the inner side of the front cowl 11, there are upper side supports 81, 81 arranged on the front part of the main frame 9 </ b> A and the left and right side surfaces of the head pipe 10, and the front part of the head pipe 10. A front cowl stay 80 protruding forward is provided.

The upper side supports 81, 81 are provided as a pair of left and right, and a frame-shaped frame portion 82 formed in a substantially rectangular frame shape extending in the front-rear direction, and an upper stay portion protruding upward from the upper portion of the front portion of the frame-shaped frame portion 82 83.
The frame-shaped frame portion 82 has a lower frame portion 82A that is long in the front-rear direction, and is fastened to the vehicle body frame 9 via a fixing portion 84A at the rear of the lower frame portion 82A and a fixing portion 84B at the front of the lower frame portion 82A. ing. Specifically, the fixing portion 84A is fixed to the front portion of the main frame 9A by the bolt 100, and the fixing portion 84B is fixed to the front cowl stay 80 by the bolt 101. Here, the upper side supports 81 and 81 are configured by integrally molding a resin material.

  The front cowl stay 80 has a plate-like base portion 85 extending from the front portion of the head pipe 10 to the rear surface of the headlight unit 20 and side stay portions 86 and 86 extending from the front end of the base portion 85 to the left and right. In FIG. The base portion 85 is fastened to the front portion of the head pipe 10 with a bolt 102. Bolts 101 are fastened to the outer end portions of the side stay portions 86, 86.

  The upper stay portions 83 of the upper side supports 81, 81 extend upward from the upper surface of the front cowl 11, and the wind screen 21 is attached to the upper stay portion 83 via a pair of left and right screen stays 87, 87. ing. A box-shaped meter 88 that displays the speed and the like of the motorcycle 1 is supported between the screen stays 87 and 87. In addition, the winker 22 is attached to the outer surface of the upper stay portion 83.

13 is a cross-sectional view taken along line XIII-XIII in FIG.
As shown in FIG. 13, a box-shaped meter case 89 is provided between the left and right upper stay portions 83, and the meter 88 is rubber-mounted in the meter case 89. The meter case 89 extends substantially between the left and right upper stay portions 83, and plate-like screen stays 87 and 87 are interposed between the upper stay portions 83 and the left and right ends of the meter case 89. Yes.

  The upper stay portion 83 has a bolt hole 83A penetrating in the vehicle width direction, and the upper stay portion 83 and the meter case 89 are connected by a bolt 103 inserted through the bolt hole 83A. The screen stays 87 and 87 are fastened together between the upper stay portions 83 and the meter case 89. Further, the wind screen 21 is fixed to the screen stays 87 and 87 by bolts 104 (see FIG. 10) fastened to the front portions of the screen stays 87 and 87.

1 Motorcycle (saddle-ride type vehicle)
3 Front wheel 15 Bar handle (handle)
16 Handle pipe 18 Outer peripheral surface (outer periphery of handle pipe)
40 Grip 40A Outer end 45 Extension pipe part (extension part)
45A Extension part outer circumference (outer circumference of extension part)
48A Inner end side rubber member (elastic member)
48B Outer end side rubber member (elastic member)
50 knuckle guard 57 dynamic weight 59 knuckle guard side connection (outside edge)
60 Holder member 62 Pipe fitting hole (cylinder part)
64 Flange part 67 Knuckle guard fastening bolt (fastening member)
70 Fastening bolt 73 Through hole (fastening part)
74 Weight insertion hole (insertion hole)
75 Slit 76 Vulnerable part

Claims (5)

A handle pipe (16) provided on the outer side in the vehicle width direction of the handle (15) for steering the front wheel (3), a grip (40) attached to the outer periphery (18) of the handle pipe (16), 40) and a knuckle guard mounting structure for a saddle riding type vehicle provided with a knuckle guard (50) rigidly supported by the handle pipe (16) on the side of the grip (40),
In the handle pipe (16), a dynamic weight (57) for reducing vibration transmitted to the handle (15) is floatingly supported via elastic members (48A, 48B),
The handle pipe (16) has an extending part (45) extending outward in the vehicle width direction from the outer end (40A) of the grip (40), and the outer periphery (45A) of the extending part (45). The knuckle guard (50) is attached to a holder member (60), and the outer end (59) of the knuckle guard (50) is fastened to the holder member (60) by a fastening member (67). A knuckle guard mounting structure for a saddle-ride type vehicle.   The knuckle guard (50) has an insertion hole (74) for the dynamic weight (57) at a portion adjacent to the fastening portion (73) to the holder member (60), and the insertion hole (74) and the 2. The knuckle guard mounting structure for a saddle riding type vehicle according to claim 1, wherein the knuckle guard mounting structure is disposed apart from the dynamic weight (57). The fastening part (73) and the insertion hole (74) of the knuckle guard (50) are arranged side by side, and the fastening part (73) and the insertion hole (74) are connected by a slit (75). And
The straddle-type vehicle according to claim 2, wherein a fragile portion (76) having a smaller thickness than a surrounding portion is provided at a rear portion of the insertion hole (74) of the knuckle guard (50). Knuckle guard mounting structure.   The holder member (60) extends from the outer side end in the vehicle width direction of the cylindrical portion (62) to the axial side of the handle pipe (16) through which the handle pipe (16) is inserted. The knuckle guard mounting structure for a saddle riding type vehicle according to claim 2, further comprising a flange portion (64). The holder member (60) is cleaved to the handle pipe (16), and a fastening bolt (70) for cleaving the holder member (60) is fastened from behind.
The knuckle guard (50) of the straddle-type vehicle according to claim 2, wherein the knuckle guard (50) covers the holder member (60) from the rear at a rear portion of the insertion hole (74) of the knuckle guard (50). Guard mounting structure.

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