JP2002173070A - Maintenance lid structure of scooter type vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance a maintenability against an engine part, etc., below a seat. SOLUTION: A maintenance lid 15 is detachably mounted to a front part 13a of a rear cover below a seat. The maintenance lid 15 is provided with a side surface part 63 covering both right and left sides of the front part 13a of the rear cover and is superposed with a cylinder head 51 and a cylinder head cover 52 in a side view. A rear upper end part 64 of the side surface part 63 is obliquely upwardly extended and reaches a neighborhood of a carburetor 54. The side surface wall 63 is superposed with a side part of the cylinder head cover 52. Since the cylinder head 51, the cylinder head cover 52 and the carburetor 54 are faced to an opening of a maintenance hole when the maintenance lid 15 is removed, an exchange of an ignition plug 53 and a maintenance of the cylinder head cover 52, etc., become possible and a maintenance of the carburetor 54 near the rear upper end part 64 becomes possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a maintenance lid structure for covering a front portion of a vehicle body cover provided under a seat of a scooter type vehicle and a maintenance hole of a step floor.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. Hei 10-7056 discloses that a substantially L-shaped maintenance lid is detachably attached to a front portion of a vehicle body cover provided under a seat and to each maintenance hole of a step floor, and the maintenance lid is removed. The figure shows an arrangement in which an engine arranged below the seat and a battery below the step floor can be maintained.

[0003]

However, the maintenance lid of the prior art described above simply forms a substantially L-shape in side view and covers only the front surface of the vehicle body cover and a part of the step floor. Is not large enough, and when the engine inside the body cover is of a four-cycle type, the cylinder head cover faces the opening of the maintenance hole. Therefore, in the case of the type in which the spark plug is provided on the side of the cylinder head of the four-cycle engine, the opening of the maintenance hole is small and maintenance of the spark plug and the like becomes difficult. In addition, when it is desired to perform maintenance on the carburetor located above the engine behind the opening of the maintenance hole, if the maintenance cannot be performed from the maintenance hole, it is necessary to remove the seat and the storage compartment under the seat.

[0004]

In order to solve the above-mentioned problems, a maintenance lid structure for a scooter-type vehicle according to the present invention covers a step floor of a scooter-type vehicle from under a seat with a vehicle body cover. In the maintenance lid detachably attached to the joint with the step floor, both sides in the vehicle width direction of the maintenance lid are formed to extend to a position overlapping the cylinder head in a side view.

[0005] At this time, a part of both sides of the maintenance lid in the vehicle width direction can be extended to the vicinity of the carburetor. It is also possible to provide a concave portion by retreating from the portion toward the inside of the vehicle.

[0006]

According to the present invention, both sides of the maintenance lid are wrapped around the left and right sides of the vehicle body cover under the seat so as to overlap with the cylinder head when viewed from the side. The maintenance of the spark plug provided on the side of the cylinder head of the cycle engine is also possible, so that the maintainability is improved.

If both ends of the maintenance lid are extended to the vicinity of the carburetor above the cylinder head, maintenance from the opening of the maintenance hole to the carburetor can be performed. In addition, recesses are provided on both sides of the maintenance lid, and the maintenance lid is retracted from both ends in the vehicle width direction of the step floor toward the center of the vehicle body.This retreated part can be used as an extension of the step floor. Riders can place their feet, increasing foot space.

Further, if the maintenance lid 15 is removed, the battery 49 and related electric components housed in the recess 48 of the floor tray 47 can be easily maintained, and two maintenance can be performed simultaneously by one maintenance lid 15. Therefore, the number of parts can be reduced.

[0099]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of an external appearance of a motorcycle to which the present embodiment is applied, FIG. 2 is a plan view of the motorcycle, FIG. 3 is a side view of a front half of a vehicle body showing a layout of main parts inside a vehicle body cover, and FIG. 5 is a plan view of the front half of the vehicle body showing the layout of main components inside the vehicle body cover, FIG. 6 is a plan view of the rear half of the vehicle body following FIG. 5, and FIG. 8 is a perspective view showing a schematic configuration of a vehicle body frame, FIG. 9 is a plan view thereof, and FIG. 10 is a perspective view of a floor tray provided below the floor.

First, the overall structure of a motorcycle to which this embodiment is applied will be outlined. As shown in FIG. 1, this motorcycle is a scooter type vehicle employing a large-diameter front wheel 1 and a rear wheel 2, and an upper portion of a front fork 3 is covered by a front cover 4 and a leg shield 5 from front and rear. An air inlet 6 for taking in cooling air from the radiator is provided at the center of the front surface of the front cover 4, and turn signals 7 are provided on the left and right sides of the air inlet 6. The air outlet 8 is provided for exhausting air.

The front cover 4 comprises a main body portion 4a located above the front wheel 1 and a front side cover 4b connected to a lower portion thereof and extending obliquely downward from the front wheel 1 to extend rearward. A handle cover 10 that covers the handle 9 is provided above the front cover 4 and the leg shield 5.
1 is provided. A meter panel 10a is provided on the rear side of the upper surface of the handle cover 10 (FIG. 2).

The lower part of the leg shield 5 is connected to a floor panel 12 which covers a low floor type step floor. The floor panel 12 is bent substantially horizontally from the connection part of the leg shield 5 and extends rearward, and the rider ( The driver's foot is on the step floor. The rear part of the floor panel 12 is connected to a rear cover 13 that rises above the floor surface.

The rear cover 13 is a vertically open member that covers the space between the seat 14 and the front and upper portions of the rear wheel 2, and the upper opening is covered with the seat 14 so as to be openable and closable. The seat 14 is for a two-seater, a front seat 14a for a rider and a rear seat 14b for a passenger (passenger).
Is provided. A grab rail / carrier 33a is arranged rearward from both left and right sides of the rear seat 14b, and the front end is a rear cover 1
3 is supported by a seat rail portion of a vehicle body frame to be described later via a stay 33b penetrating from the inside to the outside.

The front portion 13a of the rear cover is a portion having the largest vertical width from the floor surface to the front seat 14a, and a maintenance lid removably covers a maintenance hole formed under the lower portion so as to extend from the front to both left and right side surfaces. 15 are attached.

The side of the step floor below the floor panel 12 is covered with a lower cover 16, the front end of which is connected to the rear end of the front cover 4, and the upper part is the floor panel 1.
Connect to 2. In the present application, for convenience, the front cover 4, the leg shield 5, and the handle cover 10 are used as a front body cover, and the floor panel 12 and the lower cover 1 are used.
6 is a floor cover, the rear cover 13 is a rear body cover, and these are collectively referred to as a body cover. These vehicle body covers are external members, each of which can be formed of an appropriate material such as plastic.

The maintenance lid 15 is a member made of an appropriate material such as plastic and has a substantially L-shape in side view.
By the attachment / detachment, the substantially horizontal bottom portion opens and closes a maintenance hole (not shown) formed on the floor panel 12 at the same time as opening and closing the maintenance hole on the rear cover front portion 13a side. The left and right rear ends of the floor panel 12 extend rearward on the sides of the rear cover front part 13a, and extend obliquely upward.
In this case, the passenger pillion step 17 overlaps when stored.

A flat surface 18 is formed on the side of the rear cover 13 below the front seat 14a and above the pillion step 17, and a large tail light unit 19 is formed at the rear end.
Is installed around the side. A key hole 20 for seat lock is provided on the side surface above the rear wheel 2 in the vicinity of the tail light unit 19. In the figure, reference numeral 21 denotes a swing type power unit, 22 denotes an air cleaner, 23 denotes a rear cushion, and 24 denotes a main stand.

The swing type power unit 21 includes a four-cycle engine and a V-belt type transmission which will be described later. Reference numeral 21a in the figure denotes a crankshaft, on which a drive pulley is coaxially arranged. Reference numeral 21b denotes a transmission output shaft, on which a driven pulley and a starting clutch are coaxially arranged. 21c is a V belt wound around the driving pulley and the driven pulley,
1d is a rear wheel axle.

As shown in FIG. 3, the steering shaft 2 is inserted into a head pipe 26 provided at the front end of the body frame 25.
7 is rotatably supported, and the front fork 3 and the handle 9 are connected via the steering shaft 27. In addition, as shown in FIG. 4, a swing type power unit 21 is swingably supported at the center of the body frame 25 via a link 28.

As shown in FIGS. 8 and 9, the vehicle body frame 25 has a down portion 30 which extends rearward from the head pipe 26 obliquely downward from the center of the vehicle body, and has a front end welded to both lower portions thereof and extends obliquely downward and rearward. A pair of left and right floor portions 31 that bend substantially horizontally and extend further rearward, pillar portions 32 that bend from respective rear ends and extend upward in front of the rear wheel 2,
An upper end of the pillar portion 32 is welded, and a seat rail portion 33 is provided which extends obliquely upward and rearward below the seat 14 and above the rear wheel 2.

The down section 30 is a pipe member used alone, and the floor section 31 and the pillar section 32 are continuous pipe members and are provided as a pair of left and right. The seat rail portion 33 is provided as a pair of left and right sides, and is a single pipe member having a substantially U-shape in plan view connected by an overhang portion 34 that projects forward from the upper end of the pillar portion 32 and that projects forward. The rear side is connected to the left and right by a cross member 35. A pivot plate 36 is provided at a connection portion between the seat rail portion 33 and the pillar portion 32, and one end side of the link 28 supporting the swing type power unit 21 at the other end side is supported by a pivot portion 36a provided here. It has become.

The rear end portions of the left and right floor portions 31 are connected to each other by rear cross pipes 38 that curve convexly rearward, and both sides of the rear cross pipes 38 are welded to the lower surfaces of the rear end portions of the left and right floor portions 31. . Further, there are provided side stays 39 which extend in the front-rear direction substantially parallel to the outer sides of the left and right floor portions 31, respectively, and the side stays 39 are stays 40a, 40, respectively.
It is connected to the corresponding floor part 31 by b. The front end of the step frame 41 is also fastened to the rear stay 40b.

The step frame 41 is a pipe member which is provided along the lower part of each of the right and left pillar portions 32 so as to be bent obliquely rearward and upwardly, and the other end side is attached to the back side of the pillar portion 32. To the bracket 32a (FIGS. 7, 10). Further, a mounting boss 42 for a pillion step is provided on a top portion that protrudes most upward.

The front ends of the left and right floor portions 31 are also connected by a front cross pipe 37, and the lower end of the down portion 30 is welded to an intermediate portion thereof. Thereby, the left and right floor portions 3
1. A space under the floor surrounded by the front cross pipe 37 and the rear cross pipe 38 is formed.

The arrangement relationship between the body frame 25 and each component will be described again with reference to FIGS. In a space surrounded by the front cover 4 and the leg shield 5, a head pipe 26 is provided.
A radiator 43 is disposed in front of the radiator 43, a cooling fan 44 is disposed in front of the radiator 43, a radiator reserve tank 45 is disposed below the radiator 43, and a horn 46 is disposed above the radiator 43.

The down portion 30 is disposed between the front cover 4 behind the front wheel 1 and the leg shield 5, and the floor portion 31 and the side stay 39 are covered with the floor panel 12 and the lower cover 16. Also, the left and right floor sections 31,
In the space below the floor surrounded by the front cross pipe 37 and the rear cross pipe 38, a concave portion 48 of a floor tray 47 shown in FIG. 9 is accommodated, and related electric components such as a battery 49a and a starter relay 49b are accommodated therein. Is housed.

The floor tray 47 is formed of a suitable material such as plastic, and is supported by the left and right floor portions 31, the front cross pipe 37 and the rear cross pipe 38 around the concave portion 48, and is opened above the concave portion 48. The opening faces the maintenance hole of the floor panel 12 and is opened and closed by the bottom of the maintenance lid 15.

The step frame 42 is provided on the floor panel 12.
The boss 42 and the pillion step 17 are exposed to the outside through an opening formed in a part thereof (FIG. 2).

The swing-type power unit 21 supported by the pivot plate 36 is provided with a water-cooled four-cycle engine at the front part thereof. As shown in FIG. 7, the engine comprises a cylinder 50, a cylinder head 51, and a cylinder head cover 52. And a cylinder head cover 52, a cylinder head 51 and a spark plug 53 and a cylinder head 51 attached to the side surface thereof.
A part of the carburetor 54 connected to the suction port of the maintenance hole faces the opening of the maintenance hole covered with the maintenance lid 15.

The air cleaner 22 draws in outside air from a duct 22a provided at the front of the air cleaner 22 so as to protrude forward, and supplies fresh air to the carburetor 54 through a con tube 22b. Further, an exhaust pipe 55 connected to an exhaust port of the cylinder head 51 is connected to a muffler 56 (FIG. 3) on the rear wheel side under the engine. Further, as shown in FIG. 2, the engine side and the radiator 43 are connected to each other by water supply pipes 57a and 57b which are arranged on the right side of the vehicle body so as to circulate cooling water.

As shown in FIG. 4, the projecting portion 34 extends forward to the same extent as the cylinder head cover 52, and a storage case 58 is supported over the front half of the seat rail portion 33, and a fuel tank 59 is provided behind the seat portion. Rail part 3
3 supported on the posterior part. Further, the upper end of the rear cushion 23 is supported by the seat rail portion 33 near the middle in the front-rear direction of the fuel tank 59.

[00032]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an external side view of a motorcycle to which the present embodiment is applied, FIG. 2 is a plan view thereof, FIG. 3 is a side view showing a layout of main parts inside a vehicle body cover, and FIG. 4 is a perspective view of a vehicle body frame. 5, FIG. 5 is a plan view thereof, FIG. 6 is a perspective view of a floor tray provided under the floor, and FIG.

First, the overall structure of a motorcycle to which the present embodiment is applied will be outlined. As shown in FIG. 1, this motorcycle is a scooter type vehicle employing a large-diameter front wheel 1 and a rear wheel 2, and an upper portion of a front fork 3 is covered by a front cover 4 and a leg shield 5 from front and rear. An air inlet 6 for taking in cooling air from the radiator is provided at the center of the front surface of the front cover 4, and turn signals 7 are provided on the left and right sides of the air inlet 6. The air outlet 8 is provided for exhausting air.

A handle cover 10 for covering the handle 9 is provided above the front cover 4 and the leg shield 5, and a headlight 11 is provided on the front of the handle cover 10. A meter panel 10a is provided on the rear side of the upper surface of the handle cover 10 (FIG. 2).

The lower part of the leg shield 5 is connected to a floor panel 12 which covers a low floor type step floor, and the floor panel 12 is bent substantially horizontally from the connection part of the leg shield 5 and extends rearward, and the rider ( The driver's foot is on the step floor. The rear part of the floor panel 12 is connected to a rear cover 13 that rises above the floor surface.

The rear cover 13 is a vertically open member that covers the space between the seat 14 and the front and upper parts of the rear wheel 2. The upper opening is openably and closably covered by the seat 14. The seat 14 is for a two-seater, a front seat 14a for a rider and a rear seat 14b for a passenger (passenger).
Is provided.

The front portion 13a of the rear cover is a portion having the largest vertical width from the floor surface to the front seat 14a, and a maintenance lid removably covers a maintenance hole formed at a lower portion thereof so as to extend from the front to both left and right side surfaces. 15 are attached.

The side of the step floor below the floor panel 12 is covered with a lower cover 16, the front end of which is connected to the rear end of the front cover 4, and the upper part is the floor panel 1.
Connect to 2. In the present application, for convenience, the front cover 4, the leg shield 5, and the handle cover 10 are used as a front body cover, and the floor panel 12 and the lower cover 1 are used.
6 is a floor cover, the rear cover 13 is a rear body cover, and these are collectively referred to as a body cover. These vehicle body covers are external members, each of which can be formed of an appropriate material such as plastic.

The maintenance lid 15 is a member made of an appropriate material such as plastic and has a substantially L-shape in side view.
By the attachment / detachment, the substantially horizontal bottom portion opens and closes a maintenance hole (not shown) formed on the floor panel 12 at the same time as opening and closing the maintenance hole on the rear cover front portion 13a side. The left and right rear ends of the floor panel 12 extend rearward on the sides of the rear cover front part 13a, and extend obliquely upward.
In this case, the passenger pillion step 17 overlaps when stored.

A flat surface 18 is formed on the side of the rear cover 13 below the front seat 14a and above the pillion step 17, and a large tail light unit 19 is formed on the rear end.
Is installed around the side. A key hole 20 for seat lock is provided on the side surface above the rear wheel 2 in the vicinity of the tail light unit 19. In the figure, reference numeral 21 denotes a swing type power unit, 22 denotes an air cleaner, 23 denotes a rear cushion, and 24 denotes a main stand.

As shown in FIG. 3, the steering shaft 2 is inserted into a head pipe 26 provided at the front end of the body frame 25.
7 is rotatably supported, and the front fork 3 and the handle 9 are connected via the steering shaft 27. A swing type power unit 21 is swingably supported at the center of the body frame 25 via a link 28.

As shown also in FIGS.
5 is a down portion 30 extending rearward from the head pipe 26 obliquely downward to the center of the vehicle body, and a left and right floor portion 31 having a front end welded to both lower portions thereof, extending obliquely downward and rearward, then bending substantially horizontally and further extending rearward. A pillar portion 32 that is bent from each rear end portion and extends upward in front of the rear wheel 2. The upper end portion of the pillar portion 32 is welded and the seat 14 is
The seat rail portion 33 extends obliquely upward and rearward below the rear wheel 2 and above the rear wheel 2.

The down portion 30 is a pipe member used only by one, and the floor portion 31 and the pillar portion 32 are continuous pipe members and are provided in a left and right pair. The seat rail portion 33 is provided as a pair of left and right sides, and is a single pipe member having a substantially U-shape in plan view connected by an overhang portion 34 that projects forward from the upper end of the pillar portion 32 and that projects forward. The rear side is connected to the left and right by a cross member 35. A pivot plate 36 is provided at a connection portion between the seat rail portion 33 and the pillar portion 32, and one end side of the link 28 is supported by a pivot portion 36a provided here.

The rear end portions of the left and right floor portions 31 are connected by a rear cross pipe 38 that curves rearwardly convexly, and both sides of the rear cross pipe 38 are welded to the lower surfaces of the rear end portions of the left and right floor portions 31. . Further, there are provided side stays 39 which extend in the front-rear direction substantially parallel to the outer sides of the left and right floor portions 31, respectively, and the side stays 39 are stays 40a, 40, respectively.
It is connected to the corresponding floor part 31 by b. The front end of the step frame 41 is also fastened to the rear stay 40b.

The step frame 41 is a pipe member which is provided along the lower portion of each of the right and left pillar portions 32 and is curved so as to project diagonally rearward upward. The other end side is attached to the back side of the pillar portion 32. To the bracket 32a (FIGS. 4 and 7). Further, a mounting boss 42 for a pillion step is provided on a top portion that protrudes most upward.

The front ends of the left and right floor portions 31 are also connected by a front cross pipe 37, and the lower end of the down portion 30 is welded to an intermediate portion thereof. Thereby, the left and right floor portions 3
1. A space under the floor surrounded by the front cross pipe 37 and the rear cross pipe 38 is formed.

Referring again to FIG. 3, the positional relationship between the body frame 25 and each component will be described. A head pipe 26 is accommodated in a space surrounded by the front cover 4 and the leg shield 5, a radiator 43 is provided in front of the head pipe 26, a cooling fan 44 is provided in front thereof, and a radiator reserve tank 45 is provided below the radiator 43. A horn 46 is arranged above.

The down portion 30 is disposed between the front cover 4 behind the front wheel 1 and the leg shield 5, and the floor portion 31 and the side stay 39 are covered with the floor panel 12 and the lower cover 16. Also, the left and right floor sections 31,
In the space below the floor surrounded by the front cross pipe 37 and the rear cross pipe 38, a recess 48 of a floor tray 47 shown in FIG. 6 is accommodated, and a battery 49 and related electric components are accommodated therein.

The floor tray 47 is formed of an appropriate material such as plastic, and is supported by the left and right floor portions 31, the front cross pipe 37 and the rear cross pipe 38 at the peripheral portion of the concave portion 48, and is opened above the concave portion 48. The opening faces the maintenance hole of the floor panel 12 and is opened and closed by the bottom of the maintenance lid 15.

The step frame 42 is connected to the floor panel 12.
The boss 42 and the pillion step 17 are exposed to the outside through an opening formed in a part thereof (FIG. 2).

The swing type power unit 21 supported by the pivot plate 36 is provided with a water-cooled four-cycle type engine at the front part thereof. As shown in FIG. And a cylinder head cover 52, a cylinder head 51 and a spark plug 53 and a cylinder head 5 attached to a side surface thereof.
A part of the vaporizer 54 connected to the first intake port faces the opening of the maintenance hole covered by the maintenance lid 15.

The air cleaner 22 draws in outside air from a duct 22a provided at the front of the air cleaner 22 so as to protrude forward, and supplies fresh air to the carburetor 54 through a con tube 22b. Further, an exhaust pipe 55 connected to an exhaust port of the cylinder head 51 is connected to a muffler 56 (FIG. 3) on the rear wheel side under the engine. Further, as shown in FIG. 2, the engine side and the radiator 43 are connected to each other by water supply pipes 57a and 57b which are arranged on the right side of the vehicle body so as to circulate cooling water.

In FIG. 3, the overhang portion 34 extends forward to the same extent as the cylinder head cover 52, and a storage compartment 58 is supported over the front half of the seat rail portion 33, and a fuel tank 59 is mounted behind the seat rail portion 33. It is supported on the rear part. Further, the rear cushion 2 is attached to the seat rail portion 33 near the middle portion in the front-rear direction of the fuel tank 59.
3 is supported at the upper end.

Next, the maintenance lid 15 will be described. FIG. 11 is an enlarged perspective view showing the maintenance lid 15, and FIG. 12 is a perspective view showing the rear cover 13, which is the mounting side, obliquely from behind and from below. As shown in FIG. 11, the maintenance lid 15 is a plate-like member integrally formed with a substantially horizontal floor portion 60 that covers the panel 12 and a seat lower portion 61 that is bent from the rear portion and extends upward.

At the center of the seat lower portion 61, a boss portion 62 for attachment is provided. Further, the left and right sides of the seat lower part 61 form a side wall 63 and wrap around to the left and right sides.
Reference numeral 4 extends obliquely rearward and upward, and a boss 65 for mounting is also provided here.

The side wall 63 is formed in a substantially planar shape, and its lower portion is slightly receded inward from the end in the vehicle width direction and has concave portions 63a on both left and right sides. The left and right sides of the rear end of the floor portion 60 form a flat floor extending portion 66 that extends further rearward. The rear portion of the floor extension portion 66 forms a tapered shape and forms an inclined surface portion 67 that extends obliquely rearward and upward. Therefore, the side wall 63 is connected to the floor extension 66.
In addition, a concave portion which is recessed toward the center of the vehicle body by the amount of forming the slope portion 67 is formed (see FIG. 2).

As is apparent from FIG. 7, the side wall 63 overlaps the cylinder head cover 52 when viewed from the side. When the maintenance lid 15 is removed to open the maintenance hole, the cylinder head cover 52 faces the opening. Has become. Further, the rear end upper portion 64 extends to above the cylinder head cover 52 and is located near the vaporizer 54.

As shown in FIG. 12, the front part 1 of the body cover is
A maintenance hole 13b is formed below the front surface 3a from the front to the left and right sides. The edge of the lower part 61 of the maintenance lid 15 is overlapped with this edge, and the front mounting part (not visible in this drawing) and both side corners are formed. The boss portion 62 provided on the front surface of the maintenance lid 15 and the boss 65 of the rear end upper portion 64 are respectively fastened and integrated with the mounting portion 70 by screws or the like.

The side surface 13c forms a wide portion whose upper side projects outward most, and 13d indicates this ridge line. Of the wide portion, a flat portion 18 is formed in a portion of the seat 14 below the front seat 14a and at a position forward of the rear seat 14b. Reference numeral 71 denotes a mounting edge of the extension end 12a (FIG. 1), and reference numeral 72 denotes a mounting notch of the tail lamp unit 19.

Next, the operation of the present embodiment will be described. 2 and 7, when the maintenance lid 15 is removed from the rear cover 13, a maintenance hole is opened. The maintenance hole becomes significantly larger than the conventional example due to the provision of the side wall 63. Since the cylinder head cover 52 faces the maintenance hole, the ignition plug 53 provided on the side of the cylinder head 51 can be replaced. Maintenance for the head cover 52 can be facilitated.

Further, since the rear end upper portion 64 extends obliquely upward and is located near the vaporizer 54, it is possible to easily adjust the vaporizer 58 by hand through the maintenance hole. Therefore, the rear cover front portion 13 below the seat
The maintainability of the water-cooled four-cycle engine and its related parts surrounded by a is improved.

Further, the side wall 63 is retracted inward in the vehicle width direction to form a concave portion 63a, and the floor extending portion 66 is formed on the side of the concave portion 63a so as to extend from the floor portion 60. , Can also be placed on the floor extension 66, and the foot space can be enlarged. Moreover, in this case, the rear cover 1 above the side wall 63
By sandwiching the three sides, a kind of knee-grip posture is also possible.

Further, if the maintenance lid 15 is detached, the battery 49 and the related electric parts housed in the concave portion 48 of the floor tray 47 can be easily maintained, and two maintenance can be performed simultaneously by one maintenance lid 15. Therefore, the number of parts can be reduced.

[Brief description of the drawings]

FIG. 1 is an external side view of a motorcycle to which the present embodiment is applied.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view showing a layout of main parts in the front half of the vehicle body.

FIG. 4 is a side view of the rear half of the vehicle body following FIG. 3;

FIG. 5 is a plan view showing a layout of main components in the first half of the vehicle body.

FIG. 6 is a plan view of the rear half of the vehicle body following FIG. 6;

FIG. 7 is a view showing the engine periphery with a part of a body cover cut away.

FIG. 8 is a perspective view of a vehicle body frame.

FIG. 9 is a plan view thereof.

FIG. 10 is a perspective view of a floor tray provided under the floor.

FIG. 11 is a perspective view of a maintenance lid.

FIG. 12 is a perspective view of a rear cover.

[Explanation of symbols]

4: front cover, 5: leg shield, 6: air inlet, 8: exhaust port, 10: handle cover, 11: headlight, 12: floor panel, 13: rear cover, 1
4: seat, 15: maintenance lid, 21: swing type power unit, 25: body frame, 26: head pipe, 50: cylinder, 51: cylinder head, 5
2: cylinder head cover, 53: spark plug, 54:
Vaporizer, 60: floor part, 61; seat lower part, 63: side part, 66: floor extension part

Claims (3)

[Claims] 1. A maintenance lid which covers a portion from a step floor of a scooter type vehicle to a position under a seat with a vehicle body cover and is detachably attached to a joint between the vehicle body cover and the step floor, in a vehicle width direction of the maintenance lid. A maintenance lid structure for a scooter-type vehicle, wherein both sides are formed to extend to a position overlapping with a cylinder head in a side view. 2. A maintenance lid structure for a scooter-type vehicle according to claim 1, wherein a part of both sides in the vehicle width direction of said maintenance lid is extended to the vicinity of a carburetor. 3. The scooter type according to claim 1, wherein the maintenance lid is provided on both sides in the vehicle width direction thereof with recesses recessed inward from the vehicle width direction both ends of the step floor. Vehicle maintenance lid structure.