JP2011218867A - Grab bar structure of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grab bar structure of a motorcycle which is excellent in design and capable of improving an appearance structure while guaranteeing safety and proper function.SOLUTION: The grab bar structure is made of a hollow pipe material, which is extended backward from the rear part of the vehicle body covered with a seat 121 and a rear frame cover 128, has right and left pair of grip parts 12 that can be gripped by a passenger, and is formed in roughly a U shape in plan view connecting the rear end parts of the grip parts 12. The grab bar 10 has attachment parts 13, which extend in fore and aft directions along the outer surface of the rear frame cover 128, at the front end part. Protruding parts 22, which protrude toward the outer surface of the rear frame cover 128 and block a gap between the grab bar 10 and the rear frame cover 128, are provided protrusively between the attachment parts 13 and the grip parts 12.

Description

  The present invention relates to a structure of a grab bar used by a passenger sitting on a tandem seat in a motorcycle.

  In vehicles such as motorcycles, those equipped with a tandem seating seat may have a grab bar that is held by the passenger at the rear end of the seat or in the vicinity of the side thereof. For example, in the motorcycle described in Patent Document 1, the grab bar is provided with a bracket extending inward in the vehicle width direction at the front end, and is inserted inward from between the outer periphery lower edge of the seating seat and the upper edge of the rear frame cover, It is designed to be fastened and fixed to the internal body frame.

  Further, in the motorcycle described in Patent Document 2, a plate-shaped bracket that is disposed so as to face the seat rail in the vehicle width direction, is fixed by welding, and extends upward from the seat rail, and is stretched over the bracket. A support bar for supporting the grab bar is also provided.

JP 2009-214626 A JP 2009-161013 A

  However, a grab bar formed of a pipe material has a limit in the shape that can be formed as compared with a product formed by die casting or casting. In other words, the base of the grab bar arranged close to the rear frame cover and the rear part of the seat cannot be formed without a gap in accordance with the shape of the rear frame cover or the rear part of the seat, so that the fingertip is sandwiched between the rear frame cover and the rear frame cover. On the contrary, a wide gap is provided in order to prevent this from occurring. Providing such a wide gap has the disadvantage of poor appearance.

  In view of such circumstances, an object of the present invention is to provide a grab bar structure for a motorcycle that is excellent in design and can improve the appearance configuration while ensuring a safe and appropriate function.

  The grab bar structure for a motorcycle according to the present invention has a pair of left and right grips that extend rearward from the rear of the vehicle body covered with a seat and a rear frame cover and can be gripped by the passenger, and the rear ends of the grips. A grab bar structure for a motorcycle made of a hollow pipe material formed in a U-shape in plan view by connecting the parts, wherein the grab bar includes a mounting portion extending forward and backward along the outer surface of the rear frame cover at the front end. Further, a protruding portion that protrudes toward the outer surface of the rear frame cover and closes a gap between the grab bar and the rear frame cover is provided between the attachment portion and the grip portion.

  Further, in the motorcycle grab bar structure according to the present invention, the grab bar has a mounting portion of the front end portion, and an upper surface of a bulging portion of the rear frame cover formed by bulging the left and right sides outward in the left-right direction from the seating seat. The grip portion is bent upward and bent obliquely upward, and the protruding portion protrudes in the vicinity of the bent portion between the grip portion and the attachment portion. .

Further, in the motorcycle grab bar structure according to the present invention, the grab bar is formed of a steel pipe material, and the mounting portion is disposed on the outer side in the left-right direction with respect to the rear end portion of the seat rail supporting the seating seat. Features.
In the grab bar structure for a motorcycle according to the present invention, the rear surface facing the rear of the projection has a predetermined area and has a buffer function for fingers and the like.

  According to the present invention, when grabbing the grip part of the grab bar and riding on it, even if the hand slips forward, the hand hits the protruding part and further movement forward is restricted, and the grab bar and the rear frame Fingers are reliably prevented from being caught in the gap between the cover and high safety can be ensured.

  In addition, it is not necessary to provide a gap larger than necessary to prevent the fingers from being caught, and an excessive gap is not generated, so that an appearance configuration that is as good as possible can be obtained. Since the appearance can be improved while allowing a certain gap, the design or the degree of freedom of design is substantially expanded.

1 is a side view showing an overall configuration of a motorcycle according to the present invention. It is a side view which shows the structural example around the grab bar structure by this invention. It is sectional drawing which follows the AA line of FIG. It is a perspective view which shows the attachment structure of the grab bar which concerns on this invention. It is a perspective view which shows the attachment structure of the grab bar which concerns on this invention. It is a perspective view which shows the projection part attached to the grab bar which concerns on this invention.

A preferred embodiment of a grab bar structure for a motorcycle according to the present invention will be described below with reference to the drawings.
FIG. 1 is a left side view of a motorcycle according to an embodiment of the present invention. First, the overall configuration of the motorcycle 100 will be described with reference to FIG. In each of the drawings including FIG. 1 in the following description, the front of the vehicle is indicated by an arrow Fr, the rear of the vehicle is indicated by an arrow Rr, and the lateral right side of the vehicle is indicated by an arrow R as necessary. The left side is indicated by an arrow L.

  The motorcycle 100 of FIG. 1 may typically be for on-road use, and a steering head pipe 101 is disposed at the upper front part of the vehicle body. A steering shaft (not shown) is provided in the steering head pipe 101. It is inserted so that it can rotate. An upper bracket 102 and a lower bracket 103 are fixed to the upper and lower ends of the steering shaft, respectively, and a pair of front forks 104 are inserted into the upper bracket 102 and the lower bracket 103 and fixed to each other. A handle 106 is attached and supported on the upper bracket 102 via a mount 105. A front wheel 107 that is a steered wheel is rotatably supported at the lower end of the front fork 104. The front fork 104 includes an inner tube 104A and an outer tube 104B that can expand and contract with respect to the inner tube 104A.

  An upper portion of the front wheel 107 is covered with a front fender 108, and a number plate 109 is attached and supported on the front fender 108 in front of the front fork 104. The headlight unit 110 is attached and supported on the front side of the upper end of the front fork 104. The headlight unit 110 includes a headlight 111, a headlight cover 112 that covers the headlight 111, and winkers 113 that are disposed on both left and right outer sides of the headlight cover 112, and these are integrally configured. A meter unit 114 including a speedometer and other indicators is mounted on the upper side of the headlight unit 110.

  In the vehicle body frame that forms the skeleton of the vehicle, the main frame 115 extends obliquely downward from the steering head pipe 101 toward the rear of the vehicle body, and the down tube 116 extends substantially vertically downward. The down tube 116 branches right and left as a lower frame (not shown) in the vicinity of the lower end portion, and the lower frame is bent at a substantially right angle toward the rear of the vehicle body, and the rear end portion of the main frame 115 is interposed via the body frame 117. It is connected to the rear lower end.

  In a space surrounded by the main frame 115, the down tube 116, the lower frame, and the body frame 117, an engine unit 118 including a driving source, for example, an air-cooled single cylinder engine, is mounted. A tank 119 is disposed. The down tube 116 supports a substantially portal-shaped bumper 120 protruding left and right to protect the engine unit 118 and the like. A seat 121 is disposed behind the fuel tank 119.

  A front end portion of the rear swing arm 122 is pivotally supported via a pivot shaft (not shown) on a body frame 117 disposed substantially at the center in the front-rear direction of the vehicle body, and the rear swing arm 122 is vertically moved with the pivot shaft as a fulcrum. Is swingable. A rear wheel 123 that is a drive wheel is rotatably supported at the rear end portion of the rear swing arm 122. The rear swing arm 122 is suspended from the vehicle body via a shock absorber 124 (rear wheel suspension device). Although not shown, sprockets are attached to the output shaft of the engine unit 118 and the axle of the rear wheel 123, respectively, and the output of the engine unit 118 is transmitted through the chain wound around these sprockets. It is transmitted to the wheel 123. This power transmission chain is accommodated in the chain case 125.

  A carburetor unit 126 is arranged behind the engine unit 118 (cylinder block). Fuel from the fuel tank 119 and clean from an air cleaner (not shown) arranged inside the side cover 127 with respect to the carburetor unit 126. Each is supplied with air. The carburetor unit 126 supplies an air-fuel mixture to the engine unit 118.

  On the vehicle rear side, a rear frame cover 128 is connected to the rear side of the side cover 127 that functions as an exterior member, and a seat rail 129 that constitutes a part of the vehicle body frame is disposed inside these covers. . The seat rail 129 and the body frame 117 are connected by a side tube 130. Further, a grab bar 10 to be described later, which is connected and fixed to the seat rail 129, protrudes at the rear end portion of the seat 121, and the periphery of the front side of the grab bar 10 is covered with a resin cover 11.

  A rear fender 131 is disposed above the rear wheel 123 so as to cover the rear wheel 123 from above. Further, around the rear fender 131, lamps such as a winker 132, a license lamp 133, and a tail lamp 134 are disposed.

  A footrest 135 that protrudes to the left and right is provided near the lower portion (crankcase) of the engine unit 118. The rider can operate a shift change pedal 136 that extends in the front-rear direction with the foot resting on the footrest 135 on the left side of the vehicle. Further, behind the footrest 135, there is a pillion footrest 138 supported by a bracket 137 so that the passenger can put his / her foot on the pillion footrest 138. Furthermore, it has a bracket 139 that is mounted and supported using a bracket 137 and a seat rail 129, and the bracket 139 supports an auxiliary step 140 that can be used by a passenger. A side stand 141 is attached to the left side of the vehicle.

  The motorcycle 100 of the present invention includes the grab bar 10 that protrudes rearward from the rear end portion of the seat 121 as described above. Next, the grab bar 10 will be further described with reference to FIGS. As shown in FIGS. 1 and 2, the grab bar 10 has a pair of left and right grips 12 that extend rearward from the rear portion of the vehicle body covered with a seat 121 and a rear frame cover 128 and can be gripped by a passenger. And the rear-end part of this holding part 12 is connected mutually, and it is comprised from the hollow pipe material formed in the planar view U-shape so that FIG. 4 may show. In the present embodiment, a steel pipe material is particularly preferably used.

  Further, as shown in FIG. 2, the grab bar 10 includes a mounting portion 13 extending forward and backward along the outer surface of the rear frame cover 128 at the front end portion thereof, and is attached to and supported by the seat rail 129 by the mounting portion 13. A passenger sitting on the seat 121 (tandem side) can ride in a stable state by turning both hands back and gripping the grip portion 12 of the grab bar 10.

  The mounting structure of the grab bar 10 will be specifically described. As shown in FIGS. 4 and 5, mounting plates 14 projecting inward are fixed inside the mounting portion 13 of the grab bar 10. Here, each of the left and right paired seat rails 129 is coupled to the main frame 115 (near the center near the rear portion) as shown in FIG. 1 and extends rearward from the coupling portion. In addition, the shock absorber 124 extends further rearward while being bent upward appropriately in the vicinity of the upper end of the shock absorber 124. On the outside near the rear end of the seat rail 129, the mounting brackets 15 protruding outward are fixed. The corresponding mounting plate 14 and mounting bracket 15 are coupled to each other, and the grab bar 10 is attached to the seat rail 129 via these members. As can be seen from FIG. 4, the mounting portion 13 of the grab bar 10 is the seat rail. It is arranged outside the rear end portion of 129, that is, it is wide.

  The mounting plate 14 and the mounting bracket 15 are fastened and fixed to each other by bolts 16. In this case, the mounting plate 14 and the mounting bracket 15 are formed with insertion holes 17 for bolts 16 (only the mounting plate 14 side is shown in FIG. 4). The nut 18 (FIG. 5) is welded. The mounting plate 14 and thus the grab bar 10 are fixed to the seat rail 129 by bolts 16. In this example, four bolts 16 are used.

  Further, the cover 11 covering the attachment portion 13 near the front portion of the grab bar 10 is fixed by a bolt 19 as shown in FIG. In this case, as shown in FIG. 4, a nut 21 is disposed and fixed by a bracket 20 on the outside of the attachment portion 13, and the cover 11 is fixed by screwing the bolt 19 to the nut 21.

  In the motorcycle 100 of the present invention, in particular, between the mounting portion 13 and the gripping portion 12 of the grab bar 10, it protrudes toward the outer surface of the rear frame cover 128 as shown in FIG. 2 and FIG. A protrusion (or spacer) 22 that closes the gap S (see FIG. 3) with the frame cover 128 is provided. Note that the protrusion 22 is partly or mostly covered by the cover 11 together with the mounting portion 13, and has an arrangement configuration that does not appear directly or hardly appears.

  Here, the left and right sides of the rear frame cover 128 have a bulging portion 128 a formed by bulging outward from the seat 121 in the left-right direction. The mounting portion 13 of the grab bar 10 is disposed along the upper surface of the bulging portion 128a as shown in FIGS. Further, as shown in FIG. 2 and the like, the grab bar 10 is substantially in the middle in the front-rear direction, and the grip portion 12 is bent upward appropriately and extends obliquely upward. The protruding portion 22 is provided between the mounting portion 13 and the gripping portion 12, that is, in the vicinity of the bent portion between them.

  Further, as shown in FIG. 6, the protruding portion 22 is made of a plate material bent in a U shape (in plan view), and is welded to the upper surface facing portion of the bulging portion 128 a of the rear frame cover 128 in the grab bar 10. In this case, it arrange | positions along the longitudinal direction of the holding part 12 so that the center part (middle side part) of U character may face back. It is preferable that at least the central portion of the U-shape has a predetermined area as the rear surface 22a of the protruding portion 22 and is inclined to be moderately downward. In addition, an R (R) having an appropriate size is attached to the U-shaped corner of the protrusion 22.

  In the motorcycle 100 of the present invention, the passenger sitting on the seat 121 turns both hands back and holds the grip portion 12 of the grab bar 10 with his / her hand 200 as illustrated in FIG. You can take it with you. At this time, if the hand 200 slips forward, the hand 200 hits the protrusion 22 provided near the base of the gripping portion 12 and the further movement forward is restricted. Thus, fingers are reliably prevented from being caught in the gap S between the grab bar 10 and the rear frame cover 128, and high safety can be ensured.

  In this case, the rear surface 22a facing the rear of the protrusion 22 has a predetermined area, and the corner of the U-shaped portion has an R, so that it functions as a buffer for fingers and the like, and there is no concern about damaging it. Not at all. Thus, by having the protrusion part 22, the original function of the grab bar 10 can be exhibited effectively, and appropriate and safe tandem running is realized.

  On the other hand, the grab bar 10 is formed of a steel hollow pipe material in the present embodiment. In this case, as described above, there is a limit to the shape that can be molded compared to a die-cast molded product, etc., so that a certain degree of gap S will occur, but more than necessary to prevent the fingers from being pinched as in the past. It is not necessary to provide a gap of a size. Thus, since an excessive gap does not occur, an appearance configuration that is as good as possible can be obtained. Since the appearance can be improved while allowing the gap S, the design or the degree of freedom of design is substantially expanded. Furthermore, by making it possible to use a steel pipe material, there is an advantage that material costs, manufacturing costs, and the like can be substantially reduced as compared with the case of a die-cast molded product.

As mentioned above, although this invention was demonstrated with various embodiment, this invention is not limited only to these embodiment, A change etc. are possible within the scope of the present invention.
In the above-described embodiment, an example of a generally U-shape has been described as a planar view shape of the protrusion 22, but other shapes such as a T-shape with an upper portion facing rearward or an ellipse shape can also be adopted. is there.
The present invention can be effectively applied not only to an on-road vehicle as a motorcycle but also to an electric vehicle including an off-road vehicle, a scooter, and a senior car.

DESCRIPTION OF SYMBOLS 10 Grab bar, 11 Cover, 12 Gripping part, 13 Mounting part, 15 Mounting bracket, 16 Bolt, 17 Insertion hole, 18 Nut, 20 Bracket, 21 Nut, 22 Protruding part, 22a Rear surface, 100 Motorcycle, 101 Steering head pipe , 102 Upper bracket, 103 Lower bracket, 104 Front fork, 106 Handle, 107 Front wheel, 108 Front fender, 109 Number plate, 110 Headlight unit, 114 Meter unit, 115 Main frame, 116 Down tube, 117 Body frame, 118 Engine Unit, 119 Fuel tank, 120 Bumper, 121 Seat, 122 Rear swing arm, 123 Rear wheel, 124 Shock absorber, 125 Chain Case, 126 Carburetor unit, 127 Side cover, 128 Rear frame cover, 129 Seat rail, 130 Side tube, 131 Rear fender, 132 Winker, 133 License lamp, 134 Tail lamp, 135 Footrest, 136 Change pedal, 137 Bracket, 138 Pillion footrest, 139 bracket, 140 auxiliary steps, 141 side stand.

Claims (4)

It has a pair of left and right grips that extend rearward from the rear part of the vehicle body covered with the seat and the rear frame cover, and can be gripped by passengers. A grab bar structure of a motorcycle made of a hollow pipe material formed in
The grab bar includes a mounting portion extending forward and backward along the outer surface of the rear frame cover at a front end portion, and protrudes toward the outer surface of the rear frame cover between the mounting portion and the grip portion, and the grab bar and the A grab bar structure for a motorcycle, characterized in that a projection is provided to close the gap with the rear frame cover.   The grab bar is arranged with the mounting portion of the front end portion along the upper surface of the bulging portion of the rear frame cover formed by bulging the left and right sides outward in the left-right direction with respect to the seat. 2. The grab bar structure for a motorcycle according to claim 1, wherein the grip portion extending obliquely upward rearward is formed, and the protrusion is provided in the vicinity of a bent portion between the grip portion and the attachment portion.   The automatic grab bar according to claim 1 or 2, wherein the grab bar is formed of a steel pipe material, and the attachment portion is disposed on the outer side in the left-right direction with respect to a rear end portion of a seat rail that supports the seating seat. Two-wheeled grab bar structure.   The grab bar structure for a motorcycle according to any one of claims 1 to 3, wherein a rear surface facing the rear of the protrusion has a predetermined area and has a buffer function for fingers and the like.

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