JPH04362483A - Oil feeding chamber of scooter type vehicle - Google Patents

Abstract

PURPOSE:To prevent a contamination of an oil filler port and a cap, and to make the inspection of an ignition plug easier, by making a power unit in a form the ignition plug faces forward, and providing an internal opening furnishing an inner lid which can be opened and closed freely opposing to the ignition plug, to the inner wall of an oil feeding chamber. CONSTITUTION:A power unit furnishes an engine covered by an engine cover at the front side, and a transmission at the rear side, and it is a type in which a cylinder head and an ignition plug are made faced forward and connected to a frame almost horizontally. A frame panel 40 to cover the upper side of a fuel tank is extended, a projecting hole 47 is provided to an oil filler port 25a, an outer opening 50 is provided to a center cover 42, an oil feeding chamber 43 is formed of the oil filler port 25a at the inner side, and an inner wall 51 extending to the inner part of a cap 26, and an internal opening 52 is opened at the upper part of the inner wall 51 facing the ignition plug. An inner lid 53 to open and close the inner opening 52 is engaged elastically to the inner wall 51, and an outer lid 57 to open and close the outer opening 50 is connected with a hinge 58, and engaged and released to a stop hole 60 with a locking member 59. The oil filler port 25a and the cap 26 are surrounded by the inner wall 51, the inner lid 53, the outer lid 57, and the floor panel 40.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION An object of the present invention is to prevent dust from filling the filler port of a fuel tank provided under the floor of a scooter type vehicle and to facilitate inspection of a spark plug.

0002

[Prior Art] In a scooter type vehicle equipped with a power unit having a vertical engine, a fuel tank is provided at the bottom of the floor, and its fuel filler port is located in a fuel chamber provided inside a center cover. It is known from the publication No.-106384. In this conventional technology,
Since the ignition plug faces upward and is provided opposite the bottom of the storage box under the seat, there is a problem in that the ignition plug cannot be easily inspected.

0003

SUMMARY OF THE INVENTION It is an object of the present invention to seal the oil supply chamber to improve its dustproof properties, and to enable inspection of the engine's spark plug using the oil supply chamber.

0004

[Means for Solving the Problems] The means for solving the above problems in the present invention is to provide a storage box and a power unit vertically at the rear of the floor, install a fuel tank at the bottom of the floor, and have the fuel filler port facing the upper surface of the rear part of the floor. In a scooter-type vehicle, in which a center cover that covers the storage box and the front of the power unit is provided with a refueling chamber that surrounds the refueling port and has an outer lid that can be opened and closed at the front, the power unit is arranged so that the ignition plug faces forward. The fuel supply chamber is characterized in that an internal opening including an inner lid that can be opened and closed is provided in the inner wall of the fuel supply chamber, facing the ignition plug.

[0005]

[Operation] With the above structure, it is possible to refuel by opening the outer cover, and to inspect the ignition plug by opening the inner cover. When the outer and inner lids are closed, the oil supply chamber is sealed and dust is prevented from entering.

[0006]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, A is a scooter-type vehicle, and 1 is its frame, which is equipped with a head pipe 2, a down tube 3, and a side frame 4. The side frame 4 extends left and right from the bottom of the down tube 3, and from the middle It is inclined upward at a large angle, and its rear ends are integrally connected on the left and right sides by a connecting member 5. 6 is a cross member at the front end that connects the left and right side frames 4, 4 and the lower end of the down tube 3, and 7 is an intermediate cross member that has a shallow U shape, and the welded part with the side frame 4 is connected to the side frame The inside of the tube is in communication with each other through an opening 8 shown in FIGS. 3 and 4 provided in advance in the tube.

Furthermore, an air inlet 9 is provided at the top of the down tube 3, and an air outlet 10 is provided protruding from the rear surface of the intermediate cross member 7, so that cooling air is sent into the power unit 12 through a tube 11. .

The power unit 12 has an engine 13 covered with an engine cover 13a at the front and a transmission 14 at the rear.
It has a cylinder head 16 that drives the rear wheel 15.
The spark plug 17 is connected substantially horizontally to the frame 1 with the spark plug 17 facing forward. A bracket 19 extending from the power unit 12 is connected to a link 21 provided on the frame 1 via a pivot 20, and the bracket 19 extends from the power unit 12.
A shock absorber 23 is interposed between the rear part of the cross member 22 and the cross member 22.

Further, a fuel tank 25 is fixed to the side frame 4 below the location where the floor is provided, and is sealed with a cap 26. Brackets 28 and 29 for fixing the storage box 27 are protruded above the power unit 12 on the side frame 4, and a pump stay 30 is fixed to the front surface of the front bracket 28 with a screw 31. A fuel pump 33 is fixed to a mounting seat 32 protruding from the stay 30 with screws 34. The fuel in the fuel tank 25 is transferred to a fuel pipe 35 and a strainer 36.
The fuel is sucked into the fuel pump 33 and supplied to the carburetor of the engine 13.

The mounting position of the fuel pump 33 is preferably offset to one side from the center of the vehicle body as shown in FIG.
This allows the pump 33 to be moved away from the central swing range of the power unit 12. Further, a step bracket 37 having a flat upper surface and an inward opening is fixed to a position on the left side frame 4 on the side substantially opposite to the fuel pump 33, and the ignition coil 33 is
8 is housed therein and connected to the spark plug 17 by a cable 39.

The upper part of the fuel tank 25 is covered with a floor panel 40 to form a floor 41, and the engine 13, fuel pump 33, storage box 27, etc. are covered from the front to the side with a center cover 42.
A fuel supply chamber 43 is provided in the fuel supply chamber 43, which surrounds the fuel supply port 25a and the cap 26, and allows the ignition plug 17 to be operated or inspected. In the figure, 44 is an air cleaner, 45 is a carburetor, and 46 is a lid that also serves as a seat.

To describe the oil supply chamber 43 in more detail, as shown in FIGS. 5 and 6, a floor panel 40 extends into the chamber 43 and is provided with a hole 47 for protruding the oil supply port 25a. 42 is provided with an external opening 50, inside which a fueling chamber 43 is formed by the fueling port 25a of the tank 25 and an inner wall 51 that extends to the depths of the cap 26. An opening 52 is opened.

The inner lid 53 that opens and closes the inner opening 52 includes:
A stopper 54 and a protrusion 55 are protruded from the lower part and can be elastically engaged with a receiving hole 54a and a groove 55a provided in the inner wall 51, respectively. 56 is a knob used at the initial stage of opening the lid. Further, an outer lid 57 for opening and closing the external opening 50 is connected by a hinge 58, and a locking member 59 is adapted to engage and disengage from a stopper hole 60. Therefore, the fuel filler port 25a and the cap 2
6 is surrounded by an inner wall 51, an inner cover 53, an outer cover 57, and a floor panel 40, and is prevented from being contaminated by dust from the road surface. When refueling, open the outer lid 5.
7, and when inspecting the ignition plug 17, the inner cover 53 may be further opened.

Next, the embodiment shown in FIG. 7 is equipped with means for automatically discharging fuel leaked during refueling from the refueling chamber 53, and a hole 47 surrounding the refueling port 25a in the floor panel 40 is provided with a plastic or A flange 62 connected to an opening 61a provided at the bottom of a rubber tray 61 is fitted, and the opening 61a is tightly fitted to the oil filler port 25a. A drain tube 63 is connected to the front side of the tray 61. 63 along the lower surface of the floor panel 40 to guide leaked fuel so that it drips onto the ground. As shown in FIGS. 8 and 9, ribs 64 from the front surface to the back surface of the floor panel 40
A cutout hole 65 is provided throughout, and the drain tube 63 is inserted through and held in the cutout hole 65.

[0015]

As described above, according to the present invention, since the internal opening of the inner wall of the oil supply chamber is sealed by the inner lid, dustproofness is high, and dirt on the oil supply port and the cap is prevented. Further, since no lid for inspecting the ignition plug is provided on the center cover, the appearance is good, and there is an advantage that the ignition plug can be inspected immediately by opening the inner cover together with the outer cover.

[Brief explanation of the drawing]

[Figure 1] Side view of an embodiment of the present invention

[Figure 2] Plan view of the same as above

[Figure 3] Side view of main parts

[Figure 4] Plan view of the same as above

[Figure 5] Longitudinal cross-sectional view of the oil supply room

[Figure 6] Slope view of the same as above

[Figure 7] Longitudinal cross-sectional view of the oil supply chamber of another embodiment

[Figure 8]
Same as above plan view

[Figure 9] Partial cross-sectional view of the floor

[Explanation of symbols]

Claims (1)

[Claims] [Claim 1] A storage box and a power unit are provided above and below at the rear of the floor, a fuel tank is mounted below the floor and its fuel filler port faces the rear upper surface of the floor, and a center cover that covers the front of the storage box and power unit includes: In a scooter type vehicle that is provided with a refueling chamber that surrounds the refueling port and has an outer cover that can be opened and closed at the front, the power unit is of a type with a spark plug facing forward, and an inner wall of the refueling chamber is provided opposite to the spark plug. 1. A refueling chamber for a scooter type vehicle, characterized in that an internal opening is provided with an inner lid that can be freely opened and closed.