JP2840264B2 - Fuel cap device for scooter type vehicle - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fuel cap device applied to a scooter type vehicle having a carrier behind a driving seat.

BACKGROUND OF THE INVENTION In many scooter-type vehicles, a fuel tank is arranged below an operation seat, and a fuel cap appears when the operation seat is opened. However, in this case, the operation seat must be opened using a key at the time of refueling, which not only complicates the work, but also causes a problem that if fuel overflows at the time of refueling, nearby luggage and parts are easily soiled and difficult to clean. Was.

In some cases, a fuel cap is provided so as to be detachable from the space between the loading platforms, but in this case, the luggage must be dropped when refueling, which is troublesome.

(Object of the Invention) The present invention has been made in view of such circumstances,
Easy to refuel without opening the operation seat and unloading the luggage, securing a wide loading area of the loading platform, easy to clean without replenishing the luggage even if fuel overflows when refueling, and the fuel tank It is an object of the present invention to provide a fuel cap device for a scooter-type vehicle, which can ensure a large capacity of the vehicle.

(Constitution of the Invention) According to the present invention, an object of the present invention is to provide an operation seat having a rear portion that can be opened and closed upward around a hinge located at a front end of a rear wheel and a rear portion of the operation seat. A loading platform, and a fuel tank disposed below the loading platform,
In a scooter-type vehicle having a vehicle body cover that covers an upper part of the fuel tank, a flat hook in a vehicle width direction is protruded from a rear lower surface of the driving seat, and is a substantially gate-shaped rear view that is installed on a pair of left and right vehicle body frames. While fixing the seat lock on which the hook is disengaged to the tower, the front part of the fuel tank is inserted between the towers, and the fuel supply port of the fuel tank is opened from the opening formed in the vehicle body cover to the loading part of the carrier. And the cap is detachable so as to face between the driving seat and the rear edge of the driving seat, the vehicle body cover is inclined forward and upward in front of the cap, and the rear lower edge of the driving seat is separated above the cap. This is achieved by a fuel cap device for a scooter-type vehicle.

(Embodiment) FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a partially enlarged cross-sectional view, FIG. 3 is a plan view around a storage box, and FIG. FIG. 5 is a cross-sectional view near the fixing portion, FIG. 5 is a plan view near the fuel cap, and FIG.
7 is a sectional view of the fuel cap.

In FIG. 1, reference numeral 10 denotes a body frame, which is a steering shaft cylinder.
It has a main tube 14 extending obliquely rearward from 12 and a pair of left and right rear tubes 16 (see FIG. 4) having front ends fixed to the main tube 14. The rear tube 16 is bent almost obliquely rearward in the vicinity of the middle thereof, and then extends substantially horizontally rearward. A horizontal footrest 18 is provided near the connection between the lower part of the main tube 14 and the front part of the rear tube 16. A leg shield 20 that stands upward from the front end of the footrest 18 is formed.
Is located. A front fork 22 is held by the steering shaft barrel 12, and a steering front wheel 24 is held at its lower end. 26 is a steering wheel.

A power unit 30 includes a forced air-cooled two-cycle single-cylinder engine 32, and a transmission case 34 extending rearward from one side of the engine 32, and holding a driving rear wheel 36 at the rear end of the transmission case 34. It is. A V-belt continuously variable transmission is accommodated in the transmission case 34, and the output of the engine 32 is transmitted to the rear wheels 36 via this transmission. In the power unit 30, the upper surface of the crankcase of the engine 32 is pivotally supported by the bracket 16a of the rear tube 16 via a link, while the rear end of the transmission case is elastically supported by the cushion unit.

Numeral 40 denotes a luggage storage box, which is made of a synthetic resin such as polypropylene so as to have sufficient strength. This storage box
40 is made so that the helmet 42 can be stored from the top with its top down, and inside the bottom is a storage space 44 for tools and the like.
However, a battery housing 46 is integrally formed on the outside of the bottom (FIG. 2). The upper edges of the left and right walls are largely cut away to reduce the lateral width of a side cover 70 as a body cover described later. The storage box 40 is rigidly fixed to the vehicle body frame 10 at the bottom near the front and the opening edge at the rear. That is, the front portion of the storage box 40 comes into contact with the cross member 48 bridged between the left and right rear tubes 16 and is screwed from the inside of the storage box 40 at two right and left portions. A substantially horizontal seat load receiving portion 50 is integrally formed at a rear portion of the storage box 40, and a substantially gate-shaped tower 52 as viewed from behind is formed below the load receiving portion 50.
Is welded to the rear tube 16, and the load receiving portion 50 is fixed to the tower 52 by two long bolts 56, 56 with the seat lock 54 interposed therebetween (see FIG. 4).

Numeral 58 denotes a fuel tank. As shown in FIG. 2, the tank 58 has a front portion which passes through the inside of the tower 52 and bulges along the rear wall of the storage box 40 in a plan view to increase its capacity. Have been. This tank 58 is formed by joining a pair of front and rear halves made of a sheet metal press, and the mating surface 60 is inclined as shown in FIG. 2 to increase the capacity of the bulging portion at the front of the tank 58 while increasing the capacity of the press. Enables die cutting. The upper part of this joint 60 is the tower 52
The lower part of the mating surface 60 is fixed to the cross member 64 connecting the rear ends of the left and right rear tubes 16 with two left and right bolts.

Reference numeral 66 denotes an upright plate fixed to the cross member 64. A lower mounting portion 68a of the loading platform 68 is fixed to an upper end of the upright plate 66. As shown in FIG. 4, the pair of left and right upper mounting portions 68b of the loading platform 68 are fixed together with the long bolts 56, 56 together with the load receiving portion 50 of the storage box 40. As shown in FIG. 5, the loading platform 68 is formed by welding metal rods, and a member which crosses the center in the front-rear direction protrudes upward at the center as shown in FIG. When the user performs the stand hanging, it becomes a grip part 68a for hanging hands, and this grip part 68a
Behind is the cargo loading section.

70 is a side cover as a body cover. The side cover 70 is integrally formed of synthetic resin so as to surround the periphery of the storage box 40, and its front portion is smoothly continuous with the footrest 18, while its rear portion is substantially horizontal below the front portion of the loading platform 68. Part 72. The fuel port 58a of the fuel tank 58 is
From the opening provided in the flat portion 72 of the side cover 70, the loading platform 68
Loading part (that is, behind the standing grip part 68c)
And a one-push mounting type fuel cap 74 is attached to the fuel supply opening 58a.

Here, in order to secure a wide loading portion of the loading platform 68, it is necessary that the cap 74 be as close to the operation sheet 84 as possible. Therefore, the side cover 70 inclines the front portion of the cap 74 upward to prevent the oil from entering the side cover 70 at the time of refueling while bringing the cap 74 close to the operation seat 84, and the lower portion of the rear portion of the operation sheet 84 described later. Cap the rim 74
The height is made higher to improve the detachability of the cap 74 and the workability of refueling. A flat part 72 is provided around the filler port 58a.
A tubular oil-resistant seal member 76 is mounted so as to be sandwiched between the tank 58 and the tank 58. The seal 76 prevents fuel spilled during refueling from flowing into the side cover 70.

The fuel cap 74 has the structure shown in FIG. In this figure, the cylinder key 74b inserted through the main body 74a is rotated by inserting and rotating a key (not shown),
This rotation causes the pair of locks 74c to retreat toward the center from the position shown in the figure, and if the key is automatically returned by the spring, the lock 74c is returned to the projecting position shown in the figure by the spring 74d. Therefore, when the fuel cap 74 is pushed into the filler port 58a, the lock 74c retracts once into the main body 74a while compressing the spring 74d, and then returns to engage with the engaging portion provided in the filler port 58a by one-push operation. . The cap 74 is provided with a seal ring 74f that has been downwardly corrected by a spring 74e. When the cap 74 is mounted, the seal ring 74f abuts on an opening edge (not shown) in the oil supply opening 58a. Touch and seal.

84 is the driving seat, 86 is the seat bottom plate of this driving seat 84
The lower surface of the front end of the seat bottom plate 86 is connected to the front end of the storage box 40 by a shaft 88 serving as a hinge. At the rear of the seat bottom plate 86, a pair of left and right seating portions 90 (only one is shown in FIG. 2) that abut the seat load receiving portion 50 of the storage box 40 are integrally formed. The seating position of the seating section 90 is indicated by an imaginary line 90a in FIG. Also, both seats 9 of the seat bottom plate 86
From between 0, a U-shaped hook 92 hangs down, and this hook 92 passes through a window provided in the load receiving portion 50 of the storage box 40 and seat lock 54.
To be disengaged.

Here, the hook 92 is flat in the vehicle width direction as is apparent from FIG. On the seat bottom plate 86, ribs 94 facing the left and right upper edges and the rear upper edge of the side caher 70 project downward, and a rubber band-shaped sealing material 96 is attached to the ribs 94. The side cover 70 has a cap 74
, And the sealing material 96 is in contact with the upper edge. The rear lower edge of the operation seat 84 is spaced above the cap 74.

Therefore, when the operation seat 84 is set to the closed position shown in FIG. 3, the sealing material 96 is pressed from above to the opening edge of the side cover 70 to prevent infiltration of rainwater or the like into the storage box 40, while the hook 92 is seat locked. Locked to 54. As a result, the storage box 40 is closed by the operation seat 84. Hook 92 to seat lock 54
When the key is released by the key, the driving seat 84 is pivoted upward, the storage box 40 is opened, and the luggage such as the helmet 92 can be taken in and out. The sealing material 96 has elasticity,
Since the driving seat 84 is automatically pushed upward when the lock 54 of the driving seat 84 is released, there is an effect that the key of the lock 54 can be opened with one hand.

When the key is inserted into the fuel cap 74 and rotated, the lock 74c of the cap 74 is disengaged from the fuel supply port 58a, and the cap 74 can be taken out. If the cap 74 is pushed into the filler port 58a after refueling, the cap 74 can be easily attached.

At this time, since the rear lower edge of the operation seat is located above the cap, the cap can be easily attached and detached, and the refueling operation can be improved.

The present invention is not limited to the wasp-type fuel cap 74 described above, but can be applied to fuel caps having various structures.

(Effect of the Invention) As described above, in the present invention, the seat lock is attached to the substantially gate-shaped tower as viewed from the rear, and the hook on the driver's seat side is made flat in the vehicle width direction. The cap is made closer to the operation seat by reducing the width of the tower and thus the front and rear width of the tower, so that the loading portion of the bed can be secured widely. In addition, the fuel tank has its front part advanced into the portal tower, so that its capacity can be greatly increased. In addition, since the fuel cap faces between the loading section of the loading platform located behind the driving seat and the driving seat, there is no need to open the driving seat or unload the luggage when refueling,
It can be refueled easily. In addition, since the body cover that covers the upper part of the fuel tank is inclined forward and forward in front of the cap, even if fuel overflows from the filler port at the time of refueling, oil does not leak into the body cover,
There is no risk of soiling luggage and nearby parts, and cleaning is easy. Furthermore, since the vehicle body cover is inclined forward and upward in front of the cap, the rear lower edge of the driving seat can be separated above the cap. For this reason, even if the cap and the trailing edge of the operation seat are made closer to each other forward and backward in plan view in order to widen the loading portion, effects such as no deterioration in refueling workability can be obtained.

[Brief description of the drawings]

FIG. 1 is a side view of one embodiment of the present invention, FIG. 2 is a partially enlarged sectional view thereof, FIG. 3 is a plan view of the vicinity of a storage box, and FIG. FIG. 5 is a plan view of the vicinity of the fuel cap, FIG. 6 is a sectional view taken along the line VI-VI in FIG. 2, and FIG. 7 is a sectional view of the fuel cap. 36 …… Rear wheel, 52 …… A substantially gate-shaped tower, 58 …… Fuel tank, 58a …… Filling port, 68 …… Luggage carrier, 70 …… Side cover as body cover, 72 …… Flat part, 74… … Fuel cap, 84 …… Operation seat, 88 …… Hinged shaft.

Continuation of front page (56) References JP-A-2-1585884 (JP, A) JP-A-62-157874 (JP, A) JP-A-62-168778 (JP, A) JP-A-56-28479 (JP, A) , U) Fully open 1988-37489 (JP, U) Fully open 1987-197489 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B62J 35/00 B62J 7/00 B62J 7/04

Claims (1)

(57) [Claims] An operation seat having a rear portion openable and closable upward about a hinge located at a front end thereof above a rear wheel, a carrier located behind the operation seat, and a carrier below the carrier. In a scooter-type vehicle provided with a fuel tank disposed therein and a vehicle body cover that covers an upper part of the fuel tank, a flat hook in a vehicle width direction is protruded from a lower surface of a rear portion of the driving seat to form a pair of left and right vehicle frames. A seat lock for engaging and disengaging the hooks is fixed to the erected substantially gate-shaped tower, while a front portion of the fuel tank is inserted between the towers, and a fuel filler port of the fuel tank is formed in the vehicle body cover. The cap is made detachable so as to face between the loading portion of the loading platform and the trailing edge of the operation seat from the opened opening, and the vehicle body cover is inclined forward and forward in front of the cap, and the driving seat is tilted. A fuel cap device for a scooter-type vehicle, wherein a rear lower edge of the seat is spaced above the cap.