JP4573745B2 - Motorcycle with pillion step and mudguard - Google Patents

Description

  The present invention relates to a motorcycle including a pillion step and a mud guard, and more particularly, to a structure of a heel guard and a mud guard provided in the vicinity of the pillion step disposed on the power unit side.

For example, Patent Document 1 discloses a motorcycle including a pillion step on which a passenger puts his / her foot. In this motorcycle, a footrest for a tandem rider is disposed in front of the swing unit engine, and a protector is attached to the front side surface of the swing unit engine. The protector guards the swing unit engine and guards the tandem rider's heel.
JP 2003-40173 A

By the way, when the motorcycle travels on a wet road surface or a muddy road surface, the muddy water adhering to the rear wheel scatters from the rotating rear wheel and is disposed on the side of the rear wheel (the swing unit of Patent Document 1). Hitting the foot on the pillion step. Therefore, it is conceivable to use, for example, the above-described protector as a mud guard that prevents muddy water bouncing back from the power unit or soil adhering to the rear wheel (hereinafter referred to as “muddy water”) from hitting the passenger's feet.
However, as a heel guard, high strength is required for its function, and as a mud guard, its size needs to be determined according to the layout of the rear wheel, power unit and pillion step. For this reason, if it is going to comprise a heel guard and a mud guard with a single member, the increase in the weight and enlargement of this member will be caused.

  The present invention has been made in view of such circumstances, and the inventions according to claims 1 to 4 are small-sized mud guards and heel guards against muddy water and the like rebounded by the power unit in a motorcycle including a power unit and a pillion step.・ The purpose is to reduce weight. A further object of the present invention is to reduce the cost of the heel guard.

According to a first aspect of the present invention, in a motorcycle including a power unit mounted on a vehicle body and a pillion step, the heel guard disposed inside the pillion step and the heel guard are configured by independent members. Rutotomoni, mud water splashed from the rear wheel to rotate the rebound in the power unit and a mud guard to prevent the applied to the feet on the pillion step, the mudguard is provided in the power unit, and the heel guard The motorcycle is disposed between the rear wheel.
According to this, since the heel guard and the mud guard are separated from each other, each can be formed into an optimum shape or structure for satisfying the function thereof, so that the heel guard and the mud guard are constituted by a single member. Compared to the case, the weight can be reduced and the size can be reduced. Furthermore, since the degree of freedom of the layout of the mud guard is increased, the mud guard can be arranged at an optimum position in accordance with the position of the pillion step. In addition, since the mud guard is inside the heel guard, the mud guard does not get in the way when putting the foot on the pillion step.

According to a second aspect of the present invention, in the motorcycle according to the first aspect, the heel guard is made of metal, and the mudguard is made of resin.
According to this, since the heel guard is made of metal, the required strength can be ensured while being reduced in size, and the mud guard is made of synthetic resin, so that the weight can be reduced.

According to a third aspect of the present invention, in the motorcycle according to the first or second aspect, the heel guard has an opening facing the mud guard in the vehicle width direction.
According to this, since the opening is formed, the heel guard is reduced in weight. And although an opening is formed, it is prevented that mud etc. apply | hang | start to the step on a pillion step by a mud guard.

According to a fourth aspect of the present invention, in the motorcycle according to any one of the first to third aspects, the heel guard is constituted by a wire formed by being bent in a substantially U shape.
According to this, in order to make the heel guard U-shaped, the wire material may be bent in one plane.

According to a fifth aspect of the present invention, in the motorcycle according to any one of the first to fourth aspects, the mud guard is attached to the power unit at a rear position of the heel guard, extends forward, and is seen in a side view. It is formed so as to overlap with the heel guard.
According to this, the mudguard can prevent muddy water or the like from being applied to the foot even when the rear part of the passenger's foot placed on the pillion step is positioned behind the heel guard. Further, since the mud guard is attached to the power unit at a position behind the heel guard, the heel guard does not get in the way when the mud guard is attached.

According to invention of Claim 1, the following effect is show | played. That is, the weight of the heel guard and the mud guard can be reduced and the size can be reduced. In addition, the degree of freedom of the mudguard layout is increased, and it is easy to place a foot on the pillion step despite the presence of the mudguard.
According to invention of Claim 2, in addition to the effect of the invention of the cited claim, there exists the following effect. That is, the heel guard is reduced in size and the mud guard is reduced in weight.
According to invention of Claim 3, in addition to the effect of the invention of the cited claim, there exist the following effects. That is, the heel guard can be reduced in weight while preventing dirt on the feet due to muddy water or the like.
According to invention of Claim 4, in addition to the effect of the invention of the cited claim, there exists the following effect. In other words, since the wire should be bent in one plane, the heel guard can be formed easily and at low cost.
According to the invention described in claim 5, in addition to the effect of the invention described in the cited claim, the following effect is produced. In other words, it is possible to widen the range to prevent muddy water from getting on the feet, so it is possible to cope with various ways of placing the feet on the pillion step without increasing the size of the mudguard, and the mudguard to the power unit. Easy to install.

Embodiments of the present invention will be described below with reference to FIGS.
Referring to FIG. 1, a scooter type motorcycle 1 to which the present invention is applied includes a vehicle body constituted by a vehicle body frame F and a vehicle body cover C. The vehicle body frame F is connected to the head pipe 2 located at the front end, one down tube 3 extending obliquely rearward and downward from the head pipe 2, and a horizontal portion 3a constituting the lower portion of the down tube 3, and the horizontal portion 3a A pair of left and right rear frames 4 and 5 (see also FIG. 3) extending rearward and obliquely upward from both left and right sides, and a plurality of cross members (not shown) connecting the left and right rear frames 4 and 5.

  In the embodiment, front and rear and left and right mean front and rear and right and left of the motorcycle 1, and the left and right direction coincides with the vehicle width direction. Further, in the specification or claims, the inside and the outside are respectively a position closer to and relative to the vehicle body center plane L (see FIGS. 4 and 6) in the vehicle width direction of the motorcycle 1. It means a position farther away.

  The steering shaft 6 rotatably supported by the head pipe 2 is provided with a steering handle 7 at its upper end and a front fork 8 at its lower end. The front wheel 9 is pivotally supported by the lower end portion of the front fork 8, and the rear wheel 10 is pivotally supported by the rear end portion of the power unit P that generates power for rotationally driving the rear wheel 10. The power unit P is pivotally supported by a pivot shaft 13 supported by a support plate 11 coupled to the front portion of the rear frames 4 and 5 at a front end portion thereof via a link 12, and at a rear end portion thereof via a rear suspension 14. It is supported by the rear portion of the left rear frame 4 as one side in the vehicle width direction. For this reason, the power unit P is supported by the vehicle body frame F so as to be swingable in the vertical direction.

  The vehicle body frame F is covered with a vehicle body cover C including a plurality of synthetic resin covers including a floor board 15 on which a driver puts his / her foot, a body cover 16 and a rear fender 17. A storage space surrounded by the body cover 16 stores a fuel tank 18 disposed between the rear frames 4 and 5. The opening of the storage space that opens upward is the upper end of the body cover 16. It is covered with a tandem type seat 19 arranged in an openable and closable manner.

  Referring also to FIG. 2, the power unit P mounted on the vehicle body frame F and disposed on the left side of the vehicle body is generated by the horizontally disposed internal combustion engine 20 having a crankshaft extending in the vehicle width direction and the internal combustion engine 20. And a power transmission device 30 that transmits power to the rear wheel 10. The power transmission device 30 includes a V-belt type automatic transmission (not shown) as a transmission, and a transmission case 31 that houses the automatic transmission. The mission case 31 includes a case main body 32 (see FIGS. 4 and 6) and a mission cover 33 coupled to the left side of the case main body 32 by a large number of bolts 35.

  Referring to FIGS. 1, 3 and 4, a single cylinder internal combustion engine 20 is constituted by coupling one crankcase half 21a and the other crankcase half 21b integrally formed with a case body 32. The left and right crankcase 21 (see FIG. 4), the cylinder 22 extending forward from the crankcase 21 with the cylinder axis inclined slightly upward in the horizontal direction, and the cylinder 22 are sequentially stacked and integrated. An air cleaner 25a, a carburetor 25b, and an intake pipe 25c, and an intake device 25 for introducing intake air, which is an air-fuel mixture, into the combustion chamber, and an air-fuel mixture in the combustion chamber And an exhaust device 26 including an exhaust pipe 26a and a silencer 26b for guiding the combustion gas after driving the piston with the pressure generated by the combustion to the outside as exhaust gas. Then, the rotation of the crankshaft rotatably supported by the crankcase 21 and driven to rotate by the piston is automatically shifted according to the engine speed by the automatic transmission and transmitted to the rear wheel 10, and the rear The wheel 10 is driven to rotate.

  The mission cover 33 is provided with an air introduction pipe 34 connected to an air intake pipe connected to an air filter (not shown), and cooling air for cooling the belt or the like of the automatic transmission passes through the air introduction pipe 34. It is introduced in the mission case 31. Further, a kick pedal 28 for rotating the kick shaft 27 of a kick type starter provided in the internal combustion engine 20 is disposed on the left side of the mission cover 33.

  Referring to FIGS. 1 to 4, in the motorcycle 1, a pair of left and right pillion steps 41 and 42 on which a passenger puts his / her foot 70, and the pillion steps 41 and 42 are arranged in the vicinity of the pillion steps 41 and 42. The pair of left and right heel guards 51 and 52 for preventing the foot 70 placed on the power unit P from coming into contact with each other and the heel guards 51 and 52 are constituted by separate members independent of each other and rotate the rear wheel 10. A mud guard 60 is provided for preventing muddy water or the like scattered from the tire 10a (see FIG. 4) from bouncing off at the mission case 31 of the power unit P and hitting the foot on the left pillion step 41.

  Each pillion step 41, 42 disposed in front of the tire 10a is fixed to a lower end portion 43b of a Y-shaped bracket 43 made of a pipe material fixed to the rear frames 4, 5 at two upper end portions 43a. A U-shaped stay 44, which is a support member, is rotatably supported via a support shaft. The pillion step 41 disposed on the left side of the vehicle body, which is the side where the transmission case 31 is disposed with respect to the rear wheel 10, is disposed outside the transmission cover 33 and viewed from the vehicle width direction (hereinafter referred to as “side surface”). It is called “view”.), Near the top of the mission case 31 (see FIG. 2).

  Each pillion step 41, 42 has a standing position extending sideways substantially parallel to the vehicle width direction so that the foot 70 rests in the use state, and a vehicle of the motorcycle 1 in the non-use state. Between a storage position (in FIG. 3, the pillion step 41 in the storage position is indicated by a two-dot chain line) stored substantially parallel to the vehicle body center plane L (see FIGS. 4 and 5) in the width direction. To rotate.

  The heel guards 51 and 52 are arranged on the inner side of the pillion steps 41 and 42, and are formed by being bent in a substantially U-shape and made of a metal wire. Therefore, the heel guards 51 and 52 are formed by bending the wire on one plane. Each of the heel guards 51, 52, whose both ends 51a, 51b, 52a, 52b are fixed to the stay 44 by welding, has a shape in which almost the whole is positioned on a plane substantially parallel to the vehicle body center plane L (FIG. 4). reference. Further, the heel guards 51 and 52 are disposed in front of the tire 10a (see FIG. 1) and extend rearward and obliquely upward from the stay 44. The heel guards 51 and 52 are formed with openings 53 and 54 penetrating in the vehicle width direction. The openings 53 and 54 are spaces surrounded by heel guards 51 and 52 made of wire.

  Each pillion step 41, 42 in the storage position extends obliquely upward from the stay 44 at the same inclination angle as the heel guards 51, 52 and is substantially parallel to the heel guards 51, 52. It is located along the heel guards 51 and 52 to be performed. This arrangement of the pillion steps 41 and 42 when in the retracted state contributes to improving the appearance of the vehicle body around the pillion steps 41 and 42 and the heel guards 51 and 52 when in the retracted state.

  The left heel guard 51 is disposed outside the mission cover 33. The opening 53 of the heel guard 51 faces a projecting portion 61 (described later) of the mud guard 60 in the vehicle width direction, and the uppermost portion 51c of the heel guard 51 is positioned above the projecting portion 61.

  A mud guard 60 provided in the mission case 31 is disposed inside the left heel guard 51 and between the heel guard 51 and the rear wheel 10. More specifically, the mud guard 60 is attached to the upper half of the mission cover 33 by a bolt 67 (see also FIG. 6) at a position behind the heel guard 51, and the pillion step 41 and the heel guard 51 are connected. Compared to the rear, the rear wheel 10 is located. And the front part 61a mentioned later of the mud guard 60 exists in the position which overlaps with the heel guard 51 by side view.

  Referring also to FIG. 5, the synthetic resin mud guard 60 has an opening 63 at a position overlapping the transmission case 31 in a side view. The opening 63 is in a position where a part of the plurality of bolts 35, in this embodiment, the entire head of one bolt 35 can face through the opening 63 in a side view. For this reason, the bolt 35 can be attached and detached through the opening 63 by a tool inserted through the opening 63.

  Further, referring also to FIG. 6, the mud guard 60 has an overhanging portion 61 projecting above the mission case 31 and an attachment portion 62 that overlaps the mission cover 33 in a side view.

  As shown in FIG. 6, the overhanging portion 61 hits muddy water or the like (shown by a dotted line in the figure) that splashes from the tire 10 a and bounces off the upper wall 31 a of the mission case 31. Prevents heading to guard 51 and pillion step 41. Further, in the overhang portion 61, a front portion 61a that extends forward and is close to the heel guard 51 in the front-rear direction occupies a position overlapping the heel guard 51 and its opening 53 in a side view, and further includes a power unit. When P swings upward, the front portion 61a overlaps the heel guard 51 and the opening 53 at a higher rate.

  The mounting portion 62 of the mudguard 60 is formed with a plurality of boss portions 64 and 65 into which bolts 67 for connecting the mudguard 60 to the mission cover 33 are inserted. The mounting portion 62 forms a gap 66 in the vehicle width direction with the transmission cover 33, and the gap 66 discharges the muddy water and the like that bounces off the upper wall 31a and hits the mudguard 60 downward. Configure.

Next, operations and effects of the embodiment configured as described above will be described.
The motorcycle 1 includes a heel guard 51 disposed on the inner side of the pillion step 41, and a mud guard 60 composed of a member independent of the heel guard 51. The mud guard 60 is provided on the power unit P, and Since the heel guard 51 and the mud guard 60 are separated by being arranged between the guard 51 and the rear wheel 10, each can be formed into an optimum shape or structure for satisfying its function. The heel guard 51 and the mud guard 60 can be reduced in weight and reduced in size as compared with the case where the heel guard and the mud guard are constituted by a single member. Further, the mud guard 60 that prevents the muddy water splashed from the rotating tire 10a from bouncing off at the mission case 31 and hitting the feet on the pillion step 41 has a greater degree of layout freedom. The mudguard 60 can be arranged at an optimal position according to the situation. Further, since the mud guard 60 is inside the heel guard 51, the mud guard 60 does not get in the way when the foot 70 is put on the pillion step 41 even though the mud guard 60 is present.

  The heel guards 51 and 52 are made of metal, and the mud guard 60 is made of resin, so that the required strength of the heel guards 51 and 52 can be secured while reducing the size of the heel guards 51 and 52, and the weight of the mud guard 60 can be reduced. it can.

  Since the heel guards 51 and 52 are formed with openings 53 and 54, the heel guards 51 and 52 are reduced in weight, while the heel guard 51 is formed with an opening 53 that faces the mud guard 60 in the vehicle width direction. This prevents the mud guard 60 from splashing from the tire 10a and bouncing off the upper wall 31a of the mission case 31 onto the foot on the pillion step 41 by the mudguard 60, even though the opening 53 is formed. . As a result, the heel guard 51 can be reduced in weight while preventing dirt on the feet due to muddy water or the like.

  In order to make the heel guards 51 and 52 U-shaped by bending the heel guards 51 and 52 into a U-shape, the wire is bent into one plane. Can be applied. As a result, the wire rods need only be bent in one plane, so that the heel guards 51 and 52 can be formed easily and at low cost.

  Since the heel guards 51 and 52 are fixed to the stays 44 that rotatably support the pillion steps 41 and 42, there is no need to separately provide a member for fixing the heel guards 51 and 52. Can be placed in proximity to the pillion steps 41, 42. As a result, the functions of the heel guards 51 and 52 can be enhanced without increasing the number of parts.

  The mud guard 60 is located rearward and closer to the rear wheel 10 than the heel guard 51, and the front portion 61a of the mud guard 60 overlaps the heel guard 51 in a side view. Therefore, even when the rear part of the passenger's foot 70 placed on the pillion step 41 is located behind the heel guard 51, muddy water or the like can be prevented from being applied to the foot 70. As a result, the range in which muddy water or the like is prevented from being applied to the foot 70 can be widened, so that various ways of placing the foot 70 on the pillion step 41 can be handled without increasing the size of the mudguard 60. Further, since the bolt 67 for attaching the mud guard 60 to the power unit P is located behind the heel guard 51, the heel guard 51 is not obstructed when the mud guard 60 is attached, and the mud guard 60 can be easily attached.

Hereinafter, an embodiment in which a part of the configuration of the above-described embodiment is changed will be described with respect to the changed configuration.
The mud guard 60 may be integrally formed with the mission cover 33 of the power unit P. The heel guard may be constituted by a plate-like member, and further, the heel guard may not be provided with an opening.

1 is a left side view of a scooter type motorcycle to which the invention of the present invention is applied. FIG. 2 is an enlarged view of a main part of FIG. 1 in the vicinity of a power unit of a motorcycle. It is a principal part perspective view of FIG. FIG. 2 is a schematic top plan view of a power unit of the motorcycle of FIG. 1. The mud guard provided in the power unit of the motorcycle of FIG. 1 is shown, (A) is a left side view of the mud guard, and (B) is a view taken in the direction of arrow B in (A). FIG. 6 is a cross-sectional view of a main part taken along line VI-VI in FIG. 2.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Motorcycle, 19 ... Seat, 20 ... Internal combustion engine, 30 ... Power transmission device, 31 ... Mission case, 32 ... Case body, 33 ... Mission cover, 41, 42 ... Pillion step, 51, 52 ... Heel guard, 60 ... Mudguard, P ... Power unit.

Claims (5)

In a motorcycle including a power unit mounted on a vehicle body and a pillion step,
A heel guard arranged more inside than the pillion step, the formed by an independent member from said heel guard, mud water splashed from the rear wheels to rotate rebounded by the power unit at the feet on the pillion step A motorcycle comprising: a mud guard that prevents the mud from being applied, wherein the mud guard is provided in the power unit and disposed between the heel guard and the rear wheel.   The motorcycle according to claim 1, wherein the heel guard is made of metal, and the mudguard is made of resin.   The motorcycle according to claim 1 or 2, wherein the heel guard is formed with an opening facing the mud guard in a vehicle width direction.   The motorcycle according to any one of claims 1 to 3, wherein the heel guard is constituted by a wire formed by being bent in a substantially U shape.   5. The mud guard is attached to the power unit at a rear position of the heel guard, and is formed to extend forward and overlap the heel guard in a side view. The described motorcycle.

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