JP6033157B2 - Saddle-type vehicle floor step structure - Google Patents

Description

  The present invention relates to a floor step structure for a straddle-type vehicle such as a motorcycle including a floor step that forms a flat footrest surface.

  2. Description of the Related Art Conventionally, in a saddle-ride type vehicle such as a scooter type motorcycle, a floor step structure including a floor step that forms a flat footrest surface is known (see, for example, Patent Document 1). In this floor step structure, in order to secure the strength of the floor step, a pair of plate-like reinforcing plates that are separated in the front-rear direction are fixed to a pair of floor frames that extend in the front-rear direction below the floor step. The pair of reinforcing plates are formed to extend in the vehicle width direction, and are fixed to the pair of floor frames and floor steps, respectively.

JP 2005-96772 A

  However, in the floor step structure of the saddle-ride type vehicle described in Patent Document 1, the rigidity of the floor step is complemented by fixing a pair of front and rear reinforcing plates to the pair of floor frames and the floor step. ing. As a result, the weight of the vehicle is increased.

  An object of the present invention is to provide a floor step structure for a saddle-ride type vehicle that can reduce the weight while ensuring the rigidity of the floor step.

  According to a first aspect of the present invention, there is provided a head pipe that is provided at a front portion and that pivotally supports a front wheel so as to be steerable, a lower extension portion that extends rearward and downward from the head pipe, and a lower extension portion. A floor that is formed between a main frame having a pair of left and right floor portions extending rearward from the lower portion, a seat on which an occupant is seated, the head pipe and the seat, and forms a flat footrest surface. In a floor step structure of a saddle-ride type vehicle, comprising: a step; and a reinforcing member formed so as to be bridged between the pair of floor portions and fixed to a lower side of the floor step. A lower extending wall formed integrally with the floor step on the surface, the reinforcing member is formed in a substantially U-shape, and the lower extending wall is between the open ends of the reinforcing member. Disposed, the reinforcing member and the lower extending wall is characterized by forming an annular portion of the substantially annular in at least a portion of the lower side of the floor step.

  The invention according to claim 2 further includes a fuel tank provided below the floor step, and a fuel pump attached to an upper surface of the fuel tank, and the annular portion surrounds an upper portion of the fuel pump. It is formed as follows.

  The invention according to claim 3 is characterized in that the downwardly extending wall is arranged around a fuel filler opening of the fuel tank.

  The invention according to claim 4 further includes a lid that covers the upper side of the fuel filler port and that can open and close the fuel filler port, and a fulcrum of the pivot shaft of the lid is formed on the lower extension wall. It is characterized by.

  According to a fifth aspect of the present invention, the fuel tank further includes a fuel tray provided on an upper side of the fuel tank on the fuel filler port side, and the fuel tray is erected upward from the tray bottom surface and the tray bottom surface. An enclosure wall surrounding the tray bottom surface, wherein the enclosure wall is disposed between the open ends of the reinforcing members.

  According to a sixth aspect of the present invention, the reinforcing member includes a base portion extending in the vehicle width direction, an arm portion extending inclined from the end portion side of the base portion inward in the vehicle width direction, the base portion, and the arm portion. And an open end of the arm portion is fastened to the floor step, and the bent portion is fixed to the main frame.

  The invention according to claim 7 further includes: a fuel hose connected to the fuel pump; and a fuel hose guide formed integrally with the fuel supply tray to guide the fuel hose. The fuel hose and the reinforcing member are disposed between the fuel hose and the reinforcing member.

  The invention according to claim 8 is characterized in that the reinforcing member is fastened together with the floor step and the vehicle body frame.

  According to invention of Claim 1, the rigidity and intensity | strength of a floor step can be improved. Thereby, weight reduction can be achieved, ensuring the rigidity of a floor step.

  According to invention of Claim 2, the rigidity of a floor step can be improved in the upper part of a fuel pump. Thereby, a floor step and a fuel pump can be arrange | positioned closely. As a result, the motorcycle can be made compact.

  According to the invention described in claim 3, the downward extending wall is not only configured as a rib wall extending downward of the floor step, but also functions as a wall defining a part of the periphery of the fuel filler opening. Can do. Thereby, weight reduction can be achieved, while functioning as a wall which divides an oil filler mouth, raising the rigidity of a floor step.

  According to invention of Claim 4, the center of the rotating shaft of a fuel filler opening can be formed in the downward extension wall with high rigidity.

  According to the fifth aspect of the present invention, the elastic deformation of the floor step can be restricted by the surrounding wall even when a predetermined load or more is applied to the floor step.

  According to the invention described in claim 6, since the open end of the arm portion is fastened to the floor step inside the main frame, the rigidity inside the floor step can be increased.

  According to invention of Claim 7, interference with a fuel hose and a reinforcement member can be suppressed. Further, since the fuel hose guide is formed integrally with the fuel supply tray, the fuel hose can be guided by the fuel hose guide while reducing the number of parts.

  According to invention of Claim 8, it is not necessary to provide another member for fixing a reinforcement member to a floor step and a vehicle body frame. Thereby, the number of parts can be reduced.

1 is a left side view showing a motorcycle 1 as a saddle-ride type vehicle according to an embodiment of the present invention. Fig. 2 is a plan view showing a floor step structure 7 of the motorcycle 1. Fig. 3 is a perspective view showing the configuration of the lower surface of floor cover 63 and the configuration of reinforcing member 72 for floor step structure 7 of motorcycle 1. FIG. 3 is a longitudinal sectional view at a substantially center in the vehicle width direction showing the structure of a downwardly extending wall 631 of the floor cover 63 for the floor step structure 7 of the motorcycle 1. Fig. 2 is a plan view showing a state in which floor cover 63 and the like are removed from floor step structure 7 of motorcycle 1. Fig. 2 is a perspective view showing a state in which floor cover 63 and the like are removed from floor step structure 7 of motorcycle 1. Fig. 3 is a transverse cross section showing a state in which the reinforcing member 72 mounting structure is viewed from the rear side of the floor step structure 7 of the motorcycle 1. Fig. 3 is a longitudinal sectional view showing an attachment structure on the bent portion 723 side of a reinforcing member 72 for the floor step structure 7 of the motorcycle 1.

  Hereinafter, an embodiment in which a saddle riding type vehicle according to the present invention is applied to a scooter type motorcycle will be described with reference to the drawings. First, the overall configuration of the motorcycle 1 of the present embodiment will be described with reference to FIG. FIG. 1 is a left side view showing a motorcycle as a saddle riding type vehicle according to an embodiment of the present invention.

  In the following description, the front and rear, left and right, and up and down directions are in accordance with the direction seen from the occupant (driver) who rides the motorcycle unless otherwise specified. In the figure, an arrow FR indicates the front (traveling direction) of the vehicle, an arrow UP indicates the upper side of the vehicle, and an arrow LH indicates the left as viewed from the traveling direction of the vehicle.

  As shown in FIG. 1, the motorcycle 1 of the present embodiment includes a vehicle body such as a vehicle body frame 10 as a main frame, a front wheel WF, a front fender 29 disposed above the front wheel WF, a rear wheel WR, The unit swing engine 40 that pivotally supports the rear wheel WR on the rear end side, the link mechanism 5 interposed between the unit swing engine 40 and the body frame 10, and the unit swing engine 40 and the body frame 10 behind the vehicle It is mainly composed of a rear cushion 26 interposed therebetween, a seat 27 on which an occupant sits, a cover member 6 that covers each part of the vehicle, and a fuel tank 28.

  The body frame 10 is configured by integrally joining a plurality of types of steel materials by welding. The vehicle body frame 10 includes a head pipe 11, a down frame 12 as a downward extending portion, a floor frame 13 as a floor portion, a seat rail 14, and a plurality of cross members (a front cross pipe 16 and a rear cross pipe 17). Etc.).

The head pipe 11 is provided at the front portion of the vehicle body frame 10 and pivotally supports the front wheel WF so as to be steerable.
The down frame 12 extends rearward and downward from the head pipe 11. The down frame 12 is connected to the head pipe 11 at the front end. The rear end side of the down frame 12 extends obliquely downward and rearward.

  A pair of floor frames 13 are provided on the left and right. The pair of floor frames 13 extend rearward from the lower part of the down frame. The front ends of the pair of floor frames 13 are connected to the lower part of the down frame 12. The rear end portions of the pair of floor frames 13 extend rearward from the pair of down frames 12.

  A pair of seat rails 14 are provided on the left and right. The pair of seat rails 14 is provided below the seat 27. The pair of seat rails 14 extends upward and rearward from the rear portions of the pair of floor frames 13. The front end portions of the pair of seat rails 14 are connected to the pair of floor frames 13. The pair of seat rails 14 extends obliquely upward and rearward.

  A bent portion 18 is provided at the boundary between the floor frame 13 and the seat rail 14. The bent portion 18 is provided with a pivot plate 19 that extends downward from the bent portion 18. A pair of pivot plates 19 are provided on the left and right. The pivot plate 19 is joined to the bent portion 18.

  A cross member consists of a pipe member extended in the left-right direction, and connects a pair of floor frames 13 and a pair of seat rails 14 in the left-right direction. The cross member includes a front cross pipe 16 and a rear cross pipe 17.

  The front cross pipe 16 and the rear cross pipe 17 connect the pair of floor frames 13 in the left-right direction. The front cross pipe 16 and the rear cross pipe 17 extend in the left-right direction of the vehicle. The front cross pipe 16 and the rear cross pipe 17 are provided at a predetermined distance from each other in the front and rear of the vehicle. The front cross pipe 16 connects the front portions of the front side of the pair of floor frames 13. The rear cross pipe 17 connects the rear portions of the rear side of the pair of floor frames 13.

  The front wheel WF is pivotally supported by a pair of left and right front forks 22. A steering stem 21 is inserted into the head pipe 11 at the upper part of the pair of front forks 22. The steering stem 21 is connected to the top bridge 24 and the bottom bridge 23. The steering stem 21 supports a pair of front forks 22 through the bottom bridge 23 so as to be turnable left and right with respect to the head pipe 11. A handle 25 provided on the top bridge 24 can steer the front wheel WF.

  The unit swing engine 40 is swingably supported by the body frame 10. The unit swing engine 40 is swingably supported by the vehicle body frame 10 via a link mechanism 5 described later on the front side, and is swingably supported by the vehicle body frame 10 via the rear cushion 26 at the rear end. Is done. Further, the unit swing engine 40 holds the rear wheel WR rotatably on the rear side.

The unit swing engine 40 is configured by integrally providing an engine body 41 and a power transmission mechanism 42.
The engine body 41 is a power unit (prime mover) that generates the driving force of the motorcycle 1 and is mounted at a substantially central portion in the front-rear direction of the vehicle body. The engine body 41 has a crankcase 411 on the rear side, and is connected to the link mechanism 5 at a boss 412 at the front of the crankcase 411.

  The power transmission mechanism 42 transmits the driving force of the engine body 41 to the rear wheels WR. The power transmission mechanism 42 is disposed on the rear side of the engine main body 41 and is attached to the engine main body 41 to constitute the unit swing engine 40 together with the engine main body 41. The power transmission mechanism 42 is disposed on the left side in the vehicle width direction.

  The link mechanism 5 allows the unit swing engine 40 to swing in the vertical direction and the front-rear direction, and absorbs the impact load input from the road surface to the rear wheel WR. The link mechanism 5 is rotatably supported by the pivot plate 19 and is also rotatably supported by the unit swing engine 40.

  The rear cushion 26 absorbs the impact load input from the road surface to the rear wheel WR by its buffering action. An upper end portion of the rear cushion 26 is connected to the seat rail 14 via an upper end support bracket 141. The lower end portion of the rear cushion 26 is connected to the rear end portion of the unit swing engine 40.

  The rear cushion 26 extends in a straight line connecting the upper end support bracket 141 and the rear end portion of the unit swing engine 40. The rear cushion 26 extends obliquely downward and rearward. The rear cushion 26 is provided in a state where a compressed range (stroke) is secured. The rear cushion 26 is inclined so that the upper end is positioned forward of the lower end.

  The cover member 6 includes a front cover 61, a leg side shield cover 62, a floor cover 63, a floor side cover 64, an under cover 65, an inner fender cover 66, a rear side cover 67, a seat lower center cover 68, and the like.

The front cover 61 is disposed at the front portion of the motorcycle 1 and covers the front portion and the like of the body frame 10.
The leg side shield cover 62 covers a part of the head pipe 11 and a part of the down frame 12 from the rear side of the motorcycle 1 on the front side of the occupant's boarding position. A box lid 621 capable of opening and closing a glove box that can accommodate a glove is attached to an upper portion of the leg side shield cover 62.

  The floor cover 63 covers the upper side of the pair of floor frames 13 and the upper side of the fuel tank 28 from the upper side of the motorcycle 1 below the occupant's boarding position. The front end portion and the rear end portion of the floor cover 63 extend upward.

  The upper surface of the floor cover 63 forms a flat footrest surface, and the floor cover 63 functions as a floor step. The floor cover 63 is disposed above the pair of floor frames 13, and an occupant places a foot on the upper surface side. The floor cover 63 is formed between the head pipe 11 and the seat 27 in the front-rear direction of the motorcycle 1.

  A reinforcing member 72 is provided below the floor cover 63. The reinforcing member 72 is formed so as to be bridged between the pair of floor frames 13. The reinforcing member 72 is fixed to the lower side of the floor cover 63. Details of the reinforcing member 72 will be described later.

  The floor side cover 64 is disposed on the side of the motorcycle 1 below the occupant's boarding position, and covers a fuel tank 28 and the like to be described later from the side of the motorcycle 1 below.

  The under cover 65 is disposed below the motorcycle 1 below the occupant's boarding position, and covers at least the lower part of the pair of floor frames 13 from the lower side. The under cover 65 is fixed to the front cross pipe 16 and the rear cross pipe 17.

  The inner fender cover 66 is disposed behind the front wheel WF in front of the under cover 65. The inner fender cover 66 covers the lower part of the front part of the motorcycle 1 from the front part side of the motorcycle 1. The inner fender cover 66 engages with the under cover 65.

The rear side cover 67 is disposed on the side portion of the rear portion of the motorcycle 1 and covers both side surfaces of the lower portion of the seat 27.
The lower seat center cover 68 covers the lower portion of the front portion of the seat 27.

  The fuel tank 28 is provided below the floor cover 63. The fuel tank 28 is disposed between the floor cover 63 and the under cover 65 in the vertical direction. Further, the fuel tank 28 is disposed between the pair of floor frames 13 in the vehicle width direction, and is disposed between the front cross pipe 16 and the rear cross pipe 17 in the front-rear direction.

  Next, details of the floor step structure 7 of the motorcycle 1 of the present embodiment will be described with reference to FIGS. FIG. 2 is a plan view showing the floor step structure 7 of the motorcycle 1. FIG. 3 is a perspective view showing the configuration of the lower surface of the floor cover 63 and the configuration of the reinforcing member 72 in the floor step structure 7 of the motorcycle 1. FIG. 4 is a vertical cross-sectional view at the approximate center in the vehicle width direction showing the structure of the downward extending wall 631 of the floor cover 63 in the floor step structure 7 of the motorcycle 1. FIG. 5 is a plan view showing the floor step structure 7 of the motorcycle 1 with the floor cover 63 and the like removed. FIG. 6 is a perspective view showing the floor step structure 7 of the motorcycle 1 with the floor cover 63 and the like removed. FIG. 7 is a cross-sectional view showing a state in which the reinforcing member 72 mounting structure of the floor step structure 7 of the motorcycle 1 is viewed from the rear side. FIG. 8 is a longitudinal sectional view showing a mounting structure of the reinforcing member 72 on the bent portion 723 side of the floor step structure 7 of the motorcycle 1.

  As shown in FIGS. 1 to 8, the floor step structure 7 includes the above-described floor cover 63, the above-described reinforcing member 72, the above-described fuel tank 28, and the fuel supply tray 31.

  The floor cover 63 is provided above the fuel tank 28 as described above. As shown in FIGS. 2 and 3, the floor cover 63 includes a downward extending wall 631, an opening 632, a plurality of ribs 633, a reinforcing member fastening boss 637, and a floor frame fastening boss 636. Have.

  As shown in FIGS. 3 and 4, the downward extending wall 631 is disposed between open ends 724 and 724 of a reinforcing member 72 described later. The downward extending wall 631 is disposed around a fuel filler port 281 of the fuel tank 28 described later. As shown in FIGS. 3 and 4, the downward extending wall 631 is formed to extend downward from the floor cover 63 on the lower surface of the floor cover 63. The downward extending wall 631 is formed integrally with the floor cover 63.

  As shown in FIGS. 2 and 4, the back side portion of the downward extending wall 631 is recessed downward from the floor cover 63 on the upper surface of the floor cover 63. A hinge portion 634A formed at a front end portion of an oil filler lid 634, which will be described later, is disposed in a recessed portion on the back side of the downward extending wall 631.

  As shown in FIGS. 2 and 3, two cylindrical grommets 635 and 635 made of rubber are provided on the rear side of the floor cover 63 where a fuel filler lid 634 (described later) is disposed. The two grommets 635 and 635 can be engaged with protrusions 634B and 634B (described later) formed on the fuel filler lid 634 (described later).

  The opening 632 is formed on the rear side of the motorcycle 1 in the floor cover 63. As shown in FIG. 2, the opening 632 is a through hole for exposing the fuel filler port 281 of the fuel tank 28 to the outside in a state where the floor cover 63 is attached to the motorcycle 1.

  As shown in FIG. 3, the plurality of ribs 633 are erected downward from the lower surface of the floor cover 63 on the lower side of the floor cover 63. The plurality of ribs 633 are formed in a lattice shape on the lower surface of the floor cover 63 and reinforce the strength of the floor cover 63.

As shown in FIG. 3, the reinforcing member fastening boss 637 protrudes downward on the lower surface of the floor cover 63, and open ends 724 and 724 of a pair of arm portions 722 of the reinforcing member 72 described later. Is provided at a position where is arranged.
The floor frame fastening boss 636 protrudes downward on the lower surface of the floor cover 63 and is provided above the position where the pair of floor frames 13 are disposed. The floor frame fastening boss 636 is formed with a boss hole 636A penetrating in the vertical direction.

  As shown in FIG. 2, the floor cover 63 is provided with an oil filler lid 634 (lid) that covers an upper portion of an oil filler 281 described later. The oil filler lid 634 includes a hinge portion 634A provided at the front end portion, and protrusions 634B and 634B provided on the lower surface on the rear side.

The fuel filler lid 634 is configured to be pivotable about a pivot axis J formed in the hinge portion 634A, and can open and close the fuel filler port 281 of the fuel tank 28. The rotation axis J extends in the vehicle width direction of the motorcycle 1. The hinge portion 634 </ b> A of the fuel filler lid 634 is disposed in a recess on the back surface of the downward extending wall 631 of the floor cover 63. A fulcrum of the rotation axis J of the fuel filler lid 634 is formed on the downwardly extending wall 631 of the floor cover 63.
The protrusions 634B and 634B can be engaged with grommets 635 and 635 provided on the floor cover 63 when the fuel filler lid 634 is closed.

  As shown in FIGS. 5 and 6, the fuel tank 28 is fastened to the floor frame 13 by fastening bolts 284 at both ends in the vehicle width direction. The fuel tank 28 includes a fuel filler port 281, a fuel pump 282, and a fuel hose 283. The fuel filler port 281 is disposed on the rear side on the upper surface of the fuel tank 28. The fuel pump 282 is disposed on the front side of the upper surface of the fuel tank 28.

  The fuel pump 282 is attached to the upper surface of the fuel tank 28 on the front side of the fuel tank 28 as shown in FIG. A fuel hose 283 is connected to the fuel pump 282. A connector 283A is provided at one end of the fuel hose 283. The fuel hose 283 is connected to the fuel pump 282 via the connector 283A. The other end of the fuel hose 283 is connected to a fuel injection device (not shown) provided in the unit swing engine 40.

  As shown in FIGS. 2 and 3, the reinforcing member 72 is fixed to the lower side of the floor cover 63. As shown in FIGS. 5 and 6, the reinforcing member 72 is formed so as to be bridged between the pair of floor frames 13.

  As shown in FIGS. 3, 5, and 6, the reinforcing member 72 is formed in a substantially U shape. The reinforcing member 72 has a base portion 721, a pair of arm portions 722, and a bent portion 723. Base 721 extends linearly in the vehicle width direction of motorcycle 1. The pair of arm portions 722 extends from the end portion side of the base portion 721 toward the rear portion of the vehicle, and inclines inward in the vehicle width direction toward the rear portion of the vehicle (extends so as to approach).

  The reinforcing member 72 has a crank-shaped cross section in a direction intersecting the extending direction. Specifically, as shown in FIGS. 7 and 8, the arm portion 722 of the reinforcing member 72 has a crank-shaped cross section in the vehicle width direction.

  The front ends of the pair of arms 722 are connected to the ends of the base 721. The rear end portions of the pair of arm portions 722 are configured as open ends 724 and 724. The bent portion 723 connects the base portion 721 and the arm portion 722.

  Between the open ends 724 and 724 of the pair of arm portions 722 of the reinforcing member 72, the above-described downward extending wall 631 is disposed as shown in FIG. The substantially U-shaped reinforcing member 72 and the downward extending wall 631 form a substantially annular portion R at least at a part of the lower side of the floor cover 63. The annular portion R is formed so as to surround the upper portion of the fuel pump 282. In the present embodiment, the reinforcing member 72 and the downward extending wall 631 form an annular portion R in a substantially half region on the lower side of the floor cover 63. Note that “at least a part of the lower side of the floor cover 63” means that it may be a part of the area on the lower side of the floor cover 63 instead of the entire area.

  The reinforcing member 72 is positioned on the floor cover 63 before being fastened to the floor cover 63. Specifically, as shown in FIGS. 5 and 6, the reinforcing member 72 is provided with positioning holes 727 at both ends of the base 721. A protrusion (not shown) extending from the lower side of the floor cover 63 is engaged with the positioning hole 727. Thereby, the reinforcing member 72 is positioned with respect to the floor cover 63.

  Open ends 724 and 724 of the pair of arm portions 722 are fastened to the floor cover 63. Specifically, as shown in FIGS. 5 and 6, the open ends 724 and 724 of the pair of arm portions 722 are provided with open end side holes 726. As shown in FIGS. 3 and 7, the open ends 724 and 724 of the pair of arm portions 722 are provided on the lower side of the floor cover 63 by the tapping screws 724A via the open end side holes 726 (see FIG. 6). The surface is fastened to the reinforcing member fastening boss 637 of the floor cover 63.

  The bent portion 723 is fixed to the pair of floor frames 13. Specifically, as shown in FIG. 3, the bent portion 723 is provided with a bent portion side hole 725. As shown in FIGS. 6 to 8, the vehicle body frame 10 includes a pair of front side stays 131 and a pair of rear side stays 132. The pair of front side stays 131 and the pair of rear side stays 132 are welded to the pair of floor frames 13. The pair of front side stays 131 and the pair of rear side stays 132 have an L shape in the cross-sectional shape in the left-right direction.

  The pair of front-side stays 131 and the pair of rear-side stays 132 extend in the horizontal direction from the upper ends of the vertical plates 131A and 132A to the inner side in the left-right direction. It has mounting plates 131B and 132B and a cylindrical female screw portion 131C with a collar. The lower ends of the vertical plates 131A and 132A are joined to the floor frame 13.

Through holes are formed in the mounting plates 131B and 132B. The cylindrical part of the female screw part 131C with a collar is inserted through the through holes of the mounting plates 131B and 132B.
In the collar-attached female screw portion 131C, the collar portion is joined to the lower surface of the mounting plates 131B and 132B by welding, and the cylindrical portion extends upward. A fastening hole portion 131D penetrating in the vertical direction is formed on the inner surface of the collared female screw portion 131C.

  As shown in FIG. 8, the pair of front side stays 131 configured in this way are arranged on the mounting plate 131 </ b> B in order from the mounting plate 131 </ b> B side in order, the front inner cover 69, the reinforcing member 72 and the floor cover 63. Is placed. With the floor cover 63, the reinforcing member 72, and the front inner cover 69 (see FIG. 7) sandwiched, the floor cover 63 is reinforced by being fastened to the fastening hole 131D with fastening bolts 131E from the upper side of the floor cover 63. The member 72, the front inner cover 69, and the front side stay 131 (the vehicle body frame 10) are fastened together via the bent portion side hole 725 (see FIG. 3) of the reinforcing member 72.

  On the other hand, the floor cover 63 is placed on the pair of rear side stays 132, and the boss hole 636A (FIG. 3) of the floor frame fastening boss 636 is viewed from above the floor cover 63 with the floor cover 63 sandwiched therebetween. The floor cover 63 is fastened to the rear side stay 132 by fastening to a fastening hole (not shown) with a fastening bolt 132E.

  As shown in FIGS. 5 and 6, the fuel supply tray 31 is provided on the upper side of the fuel tank 28 on the fuel supply port 281 side. The fuel supply tray 31 is a tray that accumulates fuel overflowing from the fuel supply port 281 in the vicinity of the fuel supply port 281. The fuel supply tray 31 is provided around the fuel supply port 281 of the fuel tank 28.

  The oil supply tray 31 has a tray bottom surface 311 and a surrounding wall 312. The tray bottom surface 311 forms the bottom surface of the fuel supply tray 31. On the tray bottom surface 311, an upper portion of the fuel filler port 281 of the fuel tank 28 is disposed so as to protrude upward.

  The surrounding wall 312 is disposed between the open ends 724 and 724 of the pair of arm portions 722 of the reinforcing member 72. The surrounding wall 312 stands upward from the tray bottom surface 311 and surrounds the outer periphery of the tray bottom surface 311. The height of the surrounding wall 312 is such a height that the upper portion of the surrounding wall 312 is close to or in contact with the lower surface of the floor cover 63.

  As shown in FIG. 6, the fuel supply tray 31 includes a first fuel hose guide 313 as a fuel hose guide and a second fuel hose guide 314. The first fuel hose guide 313 and the second fuel hose guide 314 are formed integrally with the fuel supply tray 31. The first fuel hose guide 313 and the second fuel hose guide 314 guide the fuel hose 283 connected to the fuel pump 282.

  As shown in FIG. 6, the first fuel hose guide 313 has a pair of reinforcing members 72 below the open ends 724 and 724 of the pair of arm portions 722 of the reinforcing member 72 from the left front end of the fuel supply tray 31. It is formed to extend toward the arm portion 722 side. The first fuel hose guide 313 has a guide groove 313A that opens downward. Accordingly, the guide groove 313A guides the fuel hose 283 on the lower side of the reinforcing member 72.

  The first fuel hose guide 313 is disposed between the fuel hose 283 and the reinforcing member 72. Specifically, in the floor step structure 7, the reinforcing member 72, the first fuel hose guide 313, and the fuel hose 283 are arranged in order from the floor cover 63 side.

  As shown in FIG. 6, the second fuel hose guide 314 is formed substantially at the center in the front-rear direction on the left side of the fuel supply tray 31. The second fuel hose guide 314 has a guide groove 314A that opens downward. Accordingly, the guide groove 314A guides the fuel hose 283.

According to the floor step structure 7 of the motorcycle 1 of the present embodiment described above, for example, the following effects are exhibited.
In the present embodiment, the reinforcing member 72 and the downward extending wall 631 form a substantially annular annular portion R in at least a part of the floor cover 63. Therefore, the rigidity and strength of the floor cover 63 can be improved. Thereby, weight reduction can be achieved, ensuring the rigidity of the floor cover 63.

  In the present embodiment, the annular portion R is formed so as to surround the upper portion of the fuel pump 282. Therefore, the rigidity of the floor cover 63 can be improved in the upper part of the fuel pump 282. Thereby, the floor cover 63 and the fuel pump 282 can be disposed close to each other. Thereby, the motorcycle 1 can be made compact.

  In the present embodiment, the downward extending wall 631 is disposed around the fuel filler port 281 of the fuel tank 28. Therefore, the downward extending wall 631 can be configured not only as a rib wall extending to the lower side of the floor cover 63 but also as a wall that partitions a part of the periphery of the fuel filler port 281. As a result, the weight of the floor cover 63 can be reduced while increasing the rigidity of the floor cover 63 and functioning as a wall that partitions the fuel filler opening 281.

  In the present embodiment, the fulcrum of the rotation axis J of the fuel filler lid 634 is formed on the downward extending wall 631. Therefore, the center of the rotation axis J of the fuel filler port 281 can be formed on the downwardly extending wall 631 having high rigidity.

  In this embodiment, the fuel tank 28 is further provided with a fuel supply tray 31 provided on the upper side of the fuel tank 28 on the fuel supply port 281 side, and the fuel supply tray 31 has a tray bottom surface 311 and an surrounding wall 312. Therefore, the elastic deformation of the floor cover 63 can be restricted by the surrounding wall 312 even when a predetermined load or more is applied to the floor cover 63.

  In the present embodiment, the open end 724 of the arm portion 722 of the reinforcing member 72 is fastened to the floor cover 63. The bent portion 723 of the reinforcing member 72 is fixed to the vehicle body frame 10. Therefore, since the open end 724 of the arm portion 722 is fastened to the floor cover 63 inside the body frame 10, the rigidity inside the floor cover 63 can be increased.

  In the present embodiment, a fuel hose guide formed integrally with the fuel supply tray is provided, and the first fuel hose guide 313 is disposed between the fuel hose 283 and the reinforcing member 72. Therefore, interference between the fuel hose 283 and the reinforcing member 72 can be suppressed. Further, since the first fuel hose guide 313 is formed integrally with the fuel supply tray 31, the fuel hose 283 can be guided by the first fuel hose guide 313 while reducing the number of parts.

  In the present embodiment, the reinforcing member 72 is fastened together with the floor cover 63 and the vehicle body frame 10. Therefore, it is not necessary to provide another member for fixing the reinforcing member 72 to the floor cover 63 and the vehicle body frame 10. Thereby, the number of parts can be reduced.

The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and can be implemented in various forms.
For example, in the above-described embodiment, an example in which the present invention is applied to a motorcycle that travels by rotating the rear wheels by power generated by an engine (internal combustion engine) has been described. . That is, the present invention can also be applied to an electric motorcycle that travels by rotating the rear wheels only with power generated by the electric motor. Further, the present invention can also be applied to a hybrid straddle-type vehicle that travels by rotating the rear wheels by combining the power generated by the engine and the power generated by the electric motor.

  Furthermore, the present invention can be applied not only to a scooter type saddle type vehicle but also to a motorcycle type and a cub type saddle type vehicle as long as the vehicle includes a seat on which an occupant is seated. Further, any vehicle having a seat on which an occupant is seated can be applied to a three-wheel or four-wheel saddle riding type vehicle. That is, the saddle riding type vehicle includes all vehicles on which the occupant rides across the vehicle body.

1 Motorcycle (saddle-ride type vehicle)
7 Floor step structure 10 Body frame (main frame)
11 Head pipe 12 Down frame (lower extension)
13 Floor frame (floor part)
27 Seat 28 Fuel tank 31 Refueling tray 63 Floor cover (floor step)
72 Reinforcing member 281 Refueling port 282 Fuel pump 283 Fuel hose 311 Tray bottom surface 312 Enclosure wall 313 First fuel hose guide (fuel hose guide)
631 Downward extending wall 634 Filling port lid (lid)
721 Base part 722 Arm part 723 Bending part 724 Open end J Rotating shaft R Annular part WF Front wheel

Claims (8)

A head pipe (11) which is provided at the front and pivotally supports a front wheel (WF) so as to be steerable, a downward extension (12) extending rearward and downward from the head pipe (11), and the downward extension A main frame (10) having a pair of floor portions (13) on the left and right extending rearward from the lower portion of the protruding portion (12);
A seat (27) on which the occupant is seated;
A floor step (63) formed between the head pipe (11) and the seat (27) to form a flat footrest surface;
A floor step structure of a saddle riding type vehicle (1), comprising: a reinforcing member (72) formed to be bridged between the pair of floor portions (13) and fixed to a lower side of the floor step (63). In (7)
A lower extension wall (631) formed integrally with the floor step (63) on the lower surface of the floor step (63);
The reinforcing member (72) is formed in a substantially U-shape,
The downward extending wall (631) is disposed between the open ends (724) of the reinforcing member (72),
The straddle-type vehicle (1) in which the reinforcing member (72) and the downward extending wall (631) form a substantially annular annular portion (R) at least at a part of the lower side of the floor step (63). Floor step structure (7). A fuel tank (28) provided below the floor step (63);
A fuel pump (282) attached to the upper surface of the fuel tank (28),
The floor step structure (7) of the saddle riding type vehicle (1) according to claim 1, wherein the annular portion (R) is formed so as to surround an upper portion of the fuel pump (282). The floor step structure (7) of the saddle riding type vehicle (1) according to claim 2, wherein the downward extending wall (631) is arranged around a fuel filler port (281) of the fuel tank (28). The lid further includes a lid (634) that covers the top of the fuel filler port (281) and that can open and close the fuel filler port (281).
The floor step structure (7) of the saddle riding type vehicle (1) according to claim 3, wherein a fulcrum of the rotation axis (J) of the lid (634) is formed on the downward extending wall (631). A fuel supply tray (31) provided on the upper side of the fuel tank (28) on the fuel supply port (281) side;
The oil supply tray (31) includes a tray bottom surface (311), and an surrounding wall (312) that stands up from the tray bottom surface (311) and surrounds the tray bottom surface (311). ,
The floor step structure (7) of the saddle riding type vehicle (1) according to any one of claims 2 to 4, wherein the surrounding wall (312) is arranged between the open ends (724) of the reinforcing member (72). ). The reinforcing member (72) includes a base portion (721) extending in the vehicle width direction, an arm portion (722) extending inclined from the end side of the base portion (721) inward in the vehicle width direction, and the base portion (721). ) And the bent portion (723) connecting the arm portion (722),
An open end (724) of the arm portion (722) is fastened to the floor step (63),
The floor step structure (7) of the saddle riding type vehicle (1) according to any one of claims 1 to 5, wherein the bent portion (723) is fixed to the main frame (10). A fuel hose (283) connected to the fuel pump (282);
A fuel hose guide (313) formed integrally with the fuel supply tray (31) and guiding the fuel hose (283);
The floor step structure (7) of the saddle riding type vehicle (1) according to claim 5, wherein the fuel hose guide (313) is disposed between the fuel hose (283) and the reinforcing member (72). The floor step structure (7) of the saddle riding type vehicle (1) according to any one of claims 1 to 7, wherein the reinforcing member (72) is fastened together with the floor step (63) and the vehicle body frame (10). .

Images