JP2012066752A - Motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motorcycle for integrally attaching a front fork, a front fork bracket and a head lamp to a body frame while avoiding interference of the head lamp and a steering stopper.SOLUTION: The motor cycle includes: steering angle range regulation bosses 27 formed on the upper face of a lower bracket 33; the steering stopper 28 extended from a head pipe 25 to be interposed between the steering angle range regulation bosses 27 so as to regulate a steering angle range; and the head lamp 11 arranged frontward of a head pipe 25 and supported on the lower bracket 33. The head lamp 11 includes a head lamp bracket 38 for supporting a head lamp housing 35 on the lower bracket 33. The head lamp bracket 38 has a first fastening part fastened on the upper face of the lower bracket 33. The first fastening part has a notch recess 59 avoiding the steering stopper 28 in a planar view.

Description

  The present invention relates to a motorcycle including a headlamp supported by a front fork bracket that rotatably supports a front fork on a head pipe.

  2. Description of the Related Art A motorcycle headlamp having a lamp body that is housed in a headlamp housing so that its optical axis can be adjusted is known. This headlamp is provided on a front fork bracket that rotatably supports a pair of left and right front forks on a head pipe of a vehicle body frame (see, for example, Patent Document 1).

JP 2009-220777 A

  The headlamp includes a power line electrically connected to a lamp housed in the headlamp housing and a headlamp bracket that supports the headlamp housing on a front fork bracket. When these power lines and headlamp brackets are conspicuous in the appearance of the vehicle, the design is impaired. Therefore, the power line and the headlamp bracket are disposed in the rear half of the headlamp, and the rear half of the headlamp is disposed so as to be sandwiched between the left and right front forks. With such a configuration, the power line and the headlamp bracket are concealed so that they are not conspicuous in the appearance in a side view of the vehicle.

  The headlamp turns around the head pipe together with the front fork and the front fork bracket. Since the headlamp has an appropriate mass for providing the lens, the reflector, and the support structure thereof, the steering performance is impaired if the headlamp is too far from the head pipe which is the turning center. Therefore, the headlamp is disposed as close to the head pipe as possible, and the rear half of the headlamp is disposed between the left and right front forks.

  By the way, in order to regulate the range of the steering angle of the front wheels, the motorcycle is sandwiched between a pair of left and right rudder angle range restricting bosses formed on the front fork bracket and a rudder angle range restricting boss extending from the head pipe. A steering stopper. These rudder angle range restricting bosses and steering stoppers are also concealed by the headlamps and the left and right front forks so as not to stand out from the appearance of the vehicle.

  The conventional motorcycle has an assembly of the body frame, the front fork and the front fork bracket in order to place the headlamp at a position where the headlamp power line, headlamp bracket, rudder angle range restriction boss and steering stopper can be concealed. A headlamp was attached to the front fork bracket as a separate part in the subsequent process. Such an assembly process is for avoiding interference between the headlamp and the steering stopper when the steering shaft of the front fork bracket is inserted into the headlamp in the assembly process of the body frame, the front fork and the front fork bracket. .

  Therefore, the present invention proposes a motorcycle in which the front fork, the front fork bracket and the head lamp can be integrally attached to the vehicle body frame while avoiding interference between the head lamp and the steering stopper.

  In order to solve the above problems, a motorcycle according to the present invention includes a vehicle body frame having a head pipe, a steering shaft rotatably supported on the head pipe, an upper bracket provided at an upper end portion of the steering shaft, and A front fork bracket having a lower bracket provided at a lower end portion of the steering shaft, a pair of left and right rudder angle range restriction bosses formed to protrude from the upper surface of the lower bracket, and an upper surface of the lower bracket from the head pipe A steering stopper that is extended along the rudder angle range and is sandwiched between the rudder angle range restriction bosses to regulate the rudder angle range of the front fork bracket, and an upper end portion and a front wheel supported by the front fork bracket are pivotally supported. A pair of left and right front forks having a lower end to be moved forward of the head pipe A headlamp disposed and supported by a lower bracket, the headlamp having a headlamp housing, a reflector, and a lens provided on a front surface of the reflector, the optical axis being adjustable in the headlamp housing And a headlamp bracket for supporting the headlamp housing on the lower bracket, the headlamp bracket including a first fastening portion fastened to an upper surface of the lower bracket and the head A second fastening portion fastened to the lamp housing is provided, and the first fastening portion has a notch recess that avoids the steering stopper in a plan view.

  According to the present invention, it is possible to provide a motorcycle in which the front fork, the front fork bracket, and the head lamp can be integrally attached to the vehicle body frame while avoiding interference between the head lamp and the steering stopper.

1 is a left side view showing a motorcycle according to an embodiment of the present invention. 1 is a front view showing a motorcycle according to an embodiment of the present invention. Sectional drawing which showed the motorcycle which concerns on embodiment of this invention in III-III of FIG. 1 is an exploded sectional view showing a headlamp of a motorcycle according to an embodiment of the present invention. 1 is an exploded perspective view showing a part of a headlamp and a steering mechanism of a motorcycle according to an embodiment of the present invention. The perspective view which showed from the back the headlamp housing of the headlamp of the motorcycle which concerns on embodiment of this invention. The perspective view which showed the headlamp bracket of the headlamp of the motorcycle which concerns on embodiment of this invention. 1 is an exploded perspective view showing a headlamp of a motorcycle according to an embodiment of the present invention.

  Embodiments of a motorcycle according to the present invention will be described below with reference to FIGS.

  FIG. 1 is a left side view showing a motorcycle according to an embodiment of the present invention.

  FIG. 2 is a front view showing the motorcycle according to the embodiment of the present invention.

  As shown in FIGS. 1 and 2, the motorcycle 1 according to this embodiment is a so-called “American” type or “cruiser” type vehicle type. The motorcycle 1 includes a body frame 2 formed mainly of a steel pipe in a double cradle type, a front and rear two-cylinder V-type engine 3 mounted on a front half portion (double cradle portion) of the body frame 2, and a body frame 2 The fuel tank 4 mounted on the upper side of the V-type engine 3, the seating seat 5 and the rear fender 6 sequentially disposed behind the fuel tank 4, and the passenger seat provided on the upper portion of the rear fender 6 7, a pair of left and right steps 8 provided near the front lower portion of the vehicle body frame 2, and a radiator 9 installed on the front surface of the vehicle body frame 2.

  The motorcycle 1 also includes a steering mechanism 10 that is pivotally supported by the frontal head of the body frame 2 and that can be steered in the left-right direction, and a headlamp 11 that is provided on the steering mechanism 10. The steering mechanism 10 covers a front fork 12 that is pivotally supported by the front head of the vehicle body frame 2 and is rotatable in the left-right direction, a front wheel 13 that is pivotally supported by the lower end portion of the front fork 12, and an upper portion of the front wheel 13. A front fender 15 provided on the front fork 12 and a handle bar 16 provided on the top of the front fork 12.

  Further, the motorcycle 1 includes a swing pivot shaft 17 provided in the vehicle width direction of the body frame 2, a rear swing arm 18 pivotally supported on the swing pivot shaft 17, and a pivot support on the rear swing arm 18. A rear wheel 19.

  The motorcycle 1 includes a secondary reduction mechanism (not shown) using a shaft drive system. The secondary reduction mechanism includes a drive shaft (not shown) housed in a shaft case 21 formed integrally with the rear swing arm 18. The motorcycle 1 transmits the power of the V-type engine 3 to the rear wheel 19 via the transmission 22 and the secondary reduction mechanism.

  A so-called “American” type or “cruiser” type motorcycle 1 has a lower and longer body frame 2, a higher handlebar 16 and a lower seating seat 5 compared to other types of motorcycles.

  The area around the headlamp 11 of the motorcycle 1 will be described in more detail.

  FIG. 3 is a cross-sectional view showing the motorcycle according to the embodiment of the present invention in III-III of FIG.

  FIG. 4 is an exploded cross-sectional view of a motorcycle headlamp according to an embodiment of the present invention.

  FIG. 5 is an exploded perspective view showing a part of the headlamp and steering mechanism of the motorcycle according to the embodiment of the present invention.

  As shown in FIGS. 3 to 5, the motorcycle 1 according to this embodiment includes a vehicle body frame 2 having a head pipe 25, a front fork bracket 26 rotatably supported on the head pipe 25, and a front fork bracket. A pair of left and right rudder angle range restricting bosses 27 formed on the head 26, a steering stopper 28 extended from the head pipe 25 and sandwiched between the rudder angle range restricting bosses 27, and a pair of left and right supported by the front fork bracket 26. The front fork 12 and the headlamp 11 disposed in front of the head pipe 25 and supported by the front fork bracket 26 are provided.

  The front fork bracket 26 includes a steering shaft 31 rotatably supported by the head pipe 25, an upper bracket 32 provided at the upper end portion of the steering shaft 31, and a lower bracket 33 provided at the lower end portion of the steering shaft 31. .

  The rudder angle range restricting boss 27 is formed so as to protrude from the upper surface of the lower bracket 33.

  The steering stopper 28 restricts the rudder angle range of the front fork bracket 26, and restricts the rudder angle range of the front fork 12, and consequently the front wheels 13, to an appropriate angle range. The steering stopper 28 extends from the head pipe 25 along the upper surface of the lower bracket 33 and is sandwiched between the left and right rudder angle range restriction bosses 27 to restrict the rudder angle range of the front fork bracket 26.

  The front fork 12 has an upper end supported by the front fork bracket 26 and a lower end that pivotally supports the front wheel 13.

  The front fork bracket 26 and the front fork 12 are assembled to the vehicle body frame 2 so as to penetrate the steering shaft 31 from the lower end opening of the head pipe 25 to the upper end opening (broken arrows in FIG. 5). At this time, the steering stopper 28 reaches the upper surface of the lower bracket 33 while drawing a locus A (broken line A in FIG. 3) substantially parallel to the steering shaft 31.

  The headlamp 11 is arranged so that its rear half is sandwiched between the left and right front forks 12 and supported by the lower bracket 33. The headlamp 11 includes a headlamp housing 35, a lamp body 36 accommodated in the headlamp housing 35 so as to adjust the optical axis, an annular headlamp rim 37 adapted to the front opening edge of the headlamp housing 35, a head A head lamp bracket 38 for supporting the lamp housing 35 on the lower bracket 33.

  The headlamp 11 is disposed behind the lens 41 and has a support frame 43 of a lamp body 36 surrounding the outer periphery of the reflector 42, and a first elastic cushion 45 sandwiched between the support frame 43 and the headlamp housing 35. And a second elastic cushion 46 sandwiched between the headlamp housing 35 and the headlamp bracket 38.

  The headlamp housing 35 is a hollow body formed in a substantially conical shape, and has a recessed portion 47 so as to be enveloped in a region in front of the locus A of the steering stopper 28.

  The headlamp housing 35 has an opening 35a in a portion corresponding to a conical bottom surface. The opening 35 a has an appropriate opening diameter into which the lamp body 36 can be inserted into the headlamp housing 35.

  Further, the headlamp housing 35 has an upper boss 48 that is disposed on the inner upper portion and extends forward, and a lower cushion holding port 49 that is disposed on the lower portion and substantially faces the upper boss 48. The headlamp housing 35 elastically supports the lamp body 36 via the first elastic cushion 45 and the support frame 43 by the upper boss 48 and the lower cushion holding port 49.

  Furthermore, the headlamp housing 35 has a cushion holding port 51 corresponding to the headlamp bracket 38.

  The lamp body 36 is accommodated in the headlamp housing 35 so that the optical axis can be adjusted. The lamp body 36 includes a reflector 42, a lens 41 provided on the front surface of the reflector 42, and a light bulb 52 accommodated in the reflector 42. The reflector 42 has a hollow cone shape that is opened by opening the portion where the light bulb 52 is disposed at the apex, and is flattened so that the curvature of the inner surface gradually increases.

  The lamp body 36 is held by a gimbal in which a plurality of annular members 53 are combined. The lamp body 36 is configured to be adjustable in an appropriate range in the vertical and horizontal directions of the headlamp 11 and is pivotally supported by the support frame 43.

  The headlamp rim 37 has a flange portion 37 a positioned on the upper portion of the headlamp 11.

  The support frame 43 holds the lamp body 36 via the gimbal so that the optical axis can be adjusted, and is elastically supported in the headlamp housing 35 via the first elastic cushion 45. The support frame 43 is inserted into an upper cushion holding port 43 a into which an upper cushion 45 a to be inserted into the upper boss 48 of the headlamp housing 35 is fitted, and a lower cushion 45 b into which the lower cushion holding port 49 of the headlamp housing 35 is fitted. A lower boss 50.

  The first elastic cushion 45 is a rubber elastic body that elastically supports the lamp body 36 with respect to the headlamp housing 35 via the support frame 43. The first elastic cushion 45 includes an upper cushion 45a sandwiched between an upper boss 48 of the headlamp housing 35 and an upper cushion holding port 43a of the support frame 43, a lower cushion holding port 49 of the headlamp housing 35, and a support frame. 43, and a lower cushion 45b sandwiched between the lower boss 50 and the lower boss 50.

  The second elastic cushion 46 is a rubber elastic body that is formed in an H shape in a sectional view and is fitted into the cushion holding port 51 to elastically support the headlamp housing 35 with respect to the headlamp bracket 38.

  FIG. 6 is a rear perspective view of the headlamp housing of the motorcycle headlamp according to the embodiment of the present invention.

  As shown in FIG. 3 to FIG. 6, the headlamp housing 35 of the motorcycle 1 according to the present embodiment passes an electric wire (not shown) electrically connected to the lamp body 36 inside and outside the headlamp housing 35. An opening 35b is provided near the top.

  The recessed portion 47 of the headlamp housing 35 is formed so as to correspond to the shape of a part of the headlamp bracket 38, and has such a shape that the portion is arranged with a gap.

  The headlamp housing 35 has a plurality of cushion holding ports 51 into which three second elastic cushions 46 including those arranged in the recessed portion 47 are respectively fitted.

  FIG. 7 is a perspective view showing a headlamp bracket of a motorcycle headlamp according to an embodiment of the present invention.

  As shown in FIGS. 3 to 5 and 7, the headlamp bracket 38 of the motorcycle 1 according to the present embodiment supports the headlamp housing 35 on the lower bracket 33. The headlamp bracket 38 includes a first tightening portion 55 fastened to the upper surface of the lower bracket 33 and a second tightening portion 56 fastened to the headlamp housing 35.

  The first tightening portion 55 is a portion that is fixed to the lower bracket 33 by a fastening member (not shown) such as a bolt, and has a notch recess 59 that avoids the steering stopper 28 in plan view.

  The second tightening portion 56 is a portion that elastically supports the headlamp housing 35 via the second elastic cushion 46, and holds the headlamp housing 35 by a fastening member 61 that penetrates the second elastic cushion 46. Further, the second tightening portion 56 is disposed above the lower bracket 33 and inclined forward and downward so as to intersect an acute angle with the tightening surface between the lower bracket 33 and the first tightening portion 55 in a side view. Has a clamping surface.

  In other words, the headlamp bracket 38 is formed with a notch recess 59 in the first tightening portion 55 so as to be enveloped in a region in front of the locus A of the steering stopper 28 in the same manner as the recessed portion 47 in the headlamp housing 35. In addition, the second tightening portion 56 is configured to be steeply inclined downward.

  FIG. 8 is an exploded perspective view showing the headlamp of the motorcycle according to the embodiment of the present invention.

  As shown in FIG. 8, the headlamp housing 35 of the motorcycle 1 according to this embodiment includes a plurality of tongue pieces 62 and a retaining groove 63 at the edge of the opening 35a. The tongue piece 62 has a through hole 62 a for a bolt 65 that fixes the support frame 43 and the headlamp rim 37.

  On the other hand, the headlamp rim 37 has a latching claw 66 at the rear opening edge fitted into the headlamp housing 35. The latching claws 66 are arranged corresponding to the latching grooves 63, and when they are hooked on the latching grooves 63, the headlamp rim 37 fitted in the headlamp housing 35 is prevented from coming off.

  In the headlamp 11, after the lamp body 36 is disposed in the headlamp housing 35, a headlamp rim 37 is fitted into the opening 35 a of the headlamp housing 35, and a bolt 65 penetrating the through hole 62 a of the tongue piece 62 is provided. The support frame 43 is fastened and assembled together.

  The headlamp 11 configured as described above is arranged so that the power line (not shown) electrically connected to the lamp body 36 and the rear half portion where the headlamp bracket 38 is arranged are sandwiched between the left and right front forks 12. Therefore, the power line (not shown), the headlamp bracket 38, and the steering stopper 28 can be concealed so as not to be conspicuous in the appearance of the motorcycle 1 in a side view of the vehicle.

  In the motorcycle 1 according to this embodiment, when the front fork bracket 26 and the front fork 12 are assembled to the body frame 2, the head lamp 11 can be assembled to the front fork bracket 26 in advance.

  Specifically, the motorcycle 1 penetrates the steering shaft 31 from the lower end opening of the head pipe 25 to the upper end opening in the assembly process of the vehicle body frame 2, the front fork bracket 26 and the front fork 12. At this time, the steering stopper 28 passes through the region inside the locus A (the portion closer to the head pipe 25 than the locus A), but the headlamp 11 (more specifically, the headlamp housing 35 and the headlamp bracket near the locus A). 38) has a shape that does not enter the inside of the locus A. Therefore, the motorcycle 1 interferes with the headlamp 11 (more specifically, the headlamp housing 35 and the headlamp bracket 38 close to the locus A) and the steering stopper 28 while the headlamp 11 is assembled to the front fork bracket 26 in advance. Can be assembled without letting

  In addition, the motorcycle 1 according to the present embodiment has a range in which interference between the headlamp 11 and the steering stopper 28 in the assembly process of the front fork bracket 26, the front fork 12 and the vehicle body frame 2 can be avoided (intrudes inside the locus A). By making the headlamp 11 close to the head pipe 25 within a range in which this is not possible, it is possible to achieve both ease of assembly and reduced influence on the steering performance due to the mass of the headlamp 11.

  Furthermore, since the motorcycle 1 according to the present embodiment elastically supports the lamp body 36 of the headlamp 11 with the two-stage elastic cushion (the first elastic cushion 45 and the second elastic cushion 46), the load applied to the light bulb 52 is reduced. The durability of the headlamp 11 can be improved by reducing this.

  Therefore, according to the motorcycle 1 according to the embodiment of the present invention, the front fork 12, the front fork bracket 26 and the head lamp 11 are integrally attached to the vehicle body frame 2 while avoiding interference between the head lamp 11 and the steering stopper 28. It is done.

DESCRIPTION OF SYMBOLS 1 Motorcycle 2 Body frame 3 V-type engine 4 Fuel tank 5 Seating seat 6 Rear fender 7 Passenger seat 8 Step 9 Radiator 10 Steering mechanism 11 Headlamp 12 Front fork 13 Front wheel 15 Front fender 16 Handlebar 17 Swing pivot shaft 18 Rear swing Arm 19 Rear wheel 21 Shaft case 22 Transmission 25 Head pipe 26 Front fork bracket 27 Steering angle range restricting boss 28 Steering stopper 31 Steering shaft 32 Upper bracket 33 Lower bracket 35 Head lamp housing 35a, 35b Opening 36 Lamp body 37 Head lamp rim 37a ３８ part 38 Head lamp bracket 41 Lens 42 Reflector 43 Support frame 43a Upper cushion holding port 45 First elastic cushion 4 a Upper cushion 45b Lower cushion 46 Second elastic cushion 47 Recessed portion 48 Upper boss 49 Lower cushion holding port 50 Lower boss 51 Cushion holding port 52 Light bulb 53 Annular member 55 First tightening portion 56 Second tightening portion 59 Notch recess 61 Fastening member 62 Tongue piece 62a Through hole 63 Retaining groove 65 Bolt 66 Retaining claw

Claims (3)

A body frame having a head pipe;
A front fork bracket having a steering shaft rotatably supported by the head pipe, an upper bracket provided at an upper end portion of the steering shaft, and a lower bracket provided at a lower end portion of the steering shaft;
A pair of left and right rudder angle range restriction bosses formed to protrude from the upper surface of the lower bracket;
A steering stopper that extends from the head pipe along the upper surface of the lower bracket and is sandwiched by the rudder angle range restricting boss to restrict the rudder angle range of the front fork bracket;
A pair of left and right front forks having a top end supported by the front fork bracket and a bottom end rotatably supporting a front wheel;
A headlamp disposed in front of the head pipe and supported by a lower bracket,
The headlamp is
A headlamp housing;
A lamp body having a reflector and a lens provided on the front surface of the reflector, and housed in the headlamp housing so that the optical axis can be adjusted;
A headlamp bracket for supporting the headlamp housing on the lower bracket,
The headlamp bracket has a first tightening portion fastened to the upper surface of the lower bracket and a second tightening portion fastened to the headlamp housing,
The motorcycle according to claim 1, wherein the first tightening portion has a notch recess that avoids the steering stopper in plan view. The second tightening portion is disposed above the lower bracket and is tilted forward and downward so as to intersect an acute angle with a tightening surface between the lower bracket and the first tightening portion in a side view. The motorcycle according to claim 1, further comprising a surface. A support frame of the lamp body arranged behind the lens and surrounding the outer periphery of the reflector;
A first elastic cushion sandwiched between the support frame and the headlamp housing;
The motorcycle according to claim 1 or 2, further comprising a second elastic cushion sandwiched between the headlamp housing and the headlamp bracket.

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