JPH07144672A - Fuel gas filler of motor scooter type vehicle therewith - Google Patents

Abstract

PURPOSE:To prevent a leak of fuel gas from occurring by making a gate valve of a gas filler hole so as to be surely closable in an unoblivious manner after filling up the fuel gas. CONSTITUTION:In a fuel gas filler 45 which is provided with a fuel gas filling lid 46 in a frame cover covering a car body possibly to be opened and closed, and a gas filling hole 47 being connected to a gas cylinder is set up in an inner part of this lid 46, and connected with a gate valve 48 to be opened or closed by a cock 54 in space between the said gas cylinder and the fuel gas filler hole 47, this gate valve 48 is made to cane closer to the fuel gas filler hole 47 and set up in an inner part of the lid 46. In this constitution, when the gate valve 48 is opened, the cock 54 is projected outward from an opening part of the lid 46, thereby making this lid 46 so as not to be closed. In addition, a projection 55, which canes into contact with the cock 54 and holds this cock 54 at a closed position when the lid 46 is closed, is installed in an inner part of the lid 46.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas fuel filling device for a gas fuel type scooter type vehicle equipped with a gas cylinder filled with gas fuel, and more specifically, to a gas filling hole after filling the gas cylinder with the gas fuel. The present invention relates to a gas fuel filling device for a gas fuel type scooter type vehicle that can surely close a sluice valve.

[0002]

2. Description of the Related Art A scooter type vehicle equipped with an engine operated by gas fuel such as methane gas or propane gas is being put to practical use. In such a scooter type vehicle, a gas cylinder filled with gas fuel is mounted on the vehicle body, and a gas filling hole for filling the gas cylinder with the gas fuel is provided in the vehicle body. The gas filling hole is often arranged inside a lid that is openably and closably provided on a frame cover that covers the vehicle body. Further, a sluice valve is connected between the gas filling hole and the gas cylinder in order to prevent high-pressure gas fuel from leaking from the gas filling hole.

When filling a gas cylinder with gas fuel,
First, the lid is opened to connect a filling nozzle from the outside to the gas filling hole, and then the sluice valve is opened to fill the gas fuel. After filling, close the sluice valve, disconnect the filling nozzle, and close the lid.

If such a sluice valve is provided, even if, for example, the gas filling hole and the filling nozzle are formed as a coupler so that they can be connected with one touch, there is no risk of gas fuel leaking from the gas filling hole.

[0005]

However, if the sluice valve is forgotten to be closed, gas fuel may leak from the gas filling hole little by little, which may result in shortening the cruising range of the scooter type vehicle and causing air pollution.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to surely close the sluice valve of the gas filling hole after filling the gas fuel, and to prevent leakage of the gas fuel. An object is to provide a gas fuel filling device for a fuel type scooter type vehicle.

[0007]

To achieve the above object, in a gas fuel filling apparatus for a gas fuel type scooter type vehicle according to the present invention, a lid for filling gas fuel is provided on a frame cover for covering the vehicle body so as to be openable and closable. A gas filling hole connected to the gas cylinder is installed inside the lid, and a sluice valve that is opened and closed by a cock is connected between the gas cylinder and the gas filling hole. In the above, the sluice valve is disposed inside the lid in the vicinity of the gas filling hole, and when the sluice valve is opened, the cock projects outward from the opening of the lid so that the lid is not closed.

Further, when the lid is closed, a protrusion is provided inside the lid for abutting against the cock of the gate valve to hold the cock in the closed position.

[0009]

When the gas fuel filling device of the gas fuel type scooter type vehicle is configured in this way, the cock of the sluice valve protrudes outward from the opening of the lid when the sluice valve of the gas filling hole is opened, so that the lid is opened. Cannot be closed. Therefore, it is confirmed that the gate valve has not been closed. Further, since it is necessary to return the cock of the sluice valve to the closed position in order to close the lid, it is possible to reliably prevent forgetting to close the sluice valve.

Further, when the lid is closed, the protrusion provided inside the lid comes into contact with the cock of the sluice valve to hold the cock in the closed position. Therefore, even if the cock is not properly placed in the closed position. When the lid is closed, the cock is placed in the closed position, and the sluice valve is closed securely. Moreover, there is no concern that the cock will move from the closed position to the open position side due to vibration or the like during traveling, and reliability is improved.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a left side view of a gas fuel type scooter type vehicle to which the present invention is applied, and FIG. 2 is a plan outline view of a gas fuel type scooter type vehicle 1. The gas-fueled scooter type vehicle 1 is provided with an underbone type vehicle body frame 2. The vehicle body frame 2 includes, for example, a head tube 3 provided in the forehead and a thick main body extending downward from the head tube 3. The tube 4, an intermediate frame 5 made of a thin pipe extending rearward from the lower end of the main tube 4 and a rear frame 6 of a steel plate monocoque structure connected to the rear end of the intermediate frame 5 are configured.

A front fork 7 is pivotally attached to the head tube 3 together with a handlebar 8 so as to be rotatable left and right, and a front wheel 9 is pivotally supported on a lower portion of the front fork 7. On the other hand, a power unit 13 is pivotally supported via a link 12 on a pivot shaft 11 provided behind the intermediate frame 5 in the vehicle width direction so as to be vertically swingable. The power unit 13 includes an engine 14 operated by gas fuel and a power transmission device 1 using a V-belt type transmission or the like.
5 and the power transmission device 15 are integrally formed.
A rear wheel 16 is pivotally supported on the rear portion.

The rear portion of the power unit 13 and the rear portion of the vehicle body frame 2 are connected by a shock absorber 17, and the movements of the power unit 13 and the rear wheel 16 which rotate around the pivot shaft 11 are buffered and restored. It is like this.

Inside the rear frame 6 of the vehicle body frame 2 is an article storage chamber 18 capable of storing a helmet or the like.
The seat 19 is placed on the upper opening so as to be openable and closable.

The periphery of the vehicle body frame 2 is entirely covered with a plastic frame cover 21 to improve the appearance of the gas fuel type scooter type vehicle 1, protect the internal equipment, and reduce air resistance. . The frame cover 21 extends downwardly between the handlebar 8 and the seat 19, and a flat step board 22 on which an occupant's foot is placed is formed on the intermediate frame 5. Below the step board 22, a cylindrical gas cylinder 23 filled with the gas fuel of the engine 14 is provided.
Are placed.

FIG. 3 is a plan view of the intermediate frame 5 as viewed in the direction of arrow III in FIG. 1, and FIG. 4 is a vertical sectional view taken along the line IV-IV in FIG. The intermediate frame 5 is configured to include, for example, a pair of left and right lower pipes 25 and an upper pipe 26, and a plurality of lower bridges 27 and upper bridges 28 that connect the pair of left and right pipe members.

The lower pipe 25 is the main tube 4
Is branched from the lower end portion to the left and right, extends downward, bends, extends rearward, and is connected to the rear frame 6. The upper pipe 26 has a bracket 2 shown in FIG.
9 is fixed, and this bracket 29 is attached to the bolt 31.
The main tube 4 and the rear frame 6 are fastened to each other. As a result, the left and right upper pipes 26 and the upper bridge 28 are integrally fixed to the vehicle body frame 2, and can be detached by pulling out the bolts 31.

Two gas cylinders 23 are arranged between the lower pipe 25 and the upper pipe 26 in a left-right pair. As shown in FIG. 4, a cushion member 32 made of an elastic material such as rubber is fixed to the upper surface of the lower bridge 27 and the lower surface of the upper bridge 28, and the cushion member 32 has a radius R along the cylindrical surface of the gas cylinder 23. The upper and lower cushion members 32 hold the gas cylinder 23 in a floating manner in the intermediate frame 5. The gas cylinder 23 is attached and detached by removing the bolt 31 and removing the left and right upper pipes 26 and upper bridges 28.

Auxiliary components such as the primary pressure reducing valve 34 and the pressure sensor 35 are arranged between the left and right gas cylinders 23.
A fuel supply pipe 38 extending from the heads of the left and right gas cylinders 23 is connected to the primary pressure reducing valve 34. On the other hand, a fuel supply pipe 39 extending rearward from the primary pressure reducing valve 34 is connected to a solenoid valve 41 and a regulator 42 provided at a rear portion of the vehicle body (see FIG. 2), and a fuel supply pipe 43 extending from the regulator 42 is connected to an engine. 14 carburetors 44 (see FIG. 1). The carburetor 44 mixes gas fuel with air to generate a mixture and supplies the mixture to the engine 14.

The gas fuel type scooter type vehicle 1 is provided with a gas fuel filling device 45. As shown in FIG. 2, the fuel filling device 45 includes the frame cover 2
A gas filling hole 47 is arranged inside a lid 46 that is openably and closably provided at a rear portion of the No. 1 and a sluice valve 48 is arranged near the gas filling hole 47. The gas filling hole 47 and the sluice valve 48 are fixed to a bracket 49 provided on the vehicle body frame 2 (see FIGS. 5 and 6).

The gas filling hole 47 is connected to the primary pressure reducing valve 34 by a fuel filling pipe 51.
The sluice valve 48 is connected to the downstream side of the. A check valve 52 is connected to the downstream side of the gate valve 48.

As shown in FIG. 5, the gas filling hole 47 is formed in a coupler shape so that the filling nozzle 53 from the outside can be connected with one touch. Further, the sluice valve 48 is opened / closed by a cock 54. As shown in FIG. 6, the sluice valve 48 is closed when the cock 54 is upright, and is shut when the cock 54 is horizontal.
Opens. Then, when the gate valve 48 is opened, the cock 5
4 projects outward from the opening of the lid 46.

A protrusion 55 is provided inside the lid 46. The protrusion 55 contacts the cock 54 when the lid 46 is closed, and holds the cock 54 in the closed position.

In the case of this gas fuel type scooter type vehicle 1,
The high-pressure gas fuel in the gas cylinder 23 is decompressed by the primary decompression valve 34 and then sent to the carburetor 44 via the electromagnetic valve 41 and the regulator 42, and is mixed with air in the carburetor 44 to become an air-fuel mixture and supplied to the engine 14. It

When the gas fuel in the gas cylinder 23 is exhausted, after opening the lid 46 and connecting the filling nozzle 53 from the outside to the gas filling hole 47, the cock 54 is operated to open the sluice valve 48 to open the gas. Fill with fuel. The replenished gas fuel is sent to the primary pressure reducing valve 34 through the fuel filling pipe 51, and then, is distributed to the left and right to each gas cylinder 23.
To be filled.

After the gas fuel is filled, the sluice valve 48 is closed and then the filling nozzle 53 is disconnected. In this case, the pressure in the gas cylinder 23 is blocked by the sluice valve 48 and is not applied to the gas filling hole 47, so that the leakage of gas fuel from the gas filling hole 47 is prevented. Then, the lid 46 is closed when the filling operation is completed.

When the gas fuel filling device 45 is constructed in this way, the cock 54 of the sluice valve 48 projects outward from the opening of the lid 46 when the sluice valve 48 of the gas filling hole 47 is open, so that the lid 46 is removed. Cannot be closed. Since it is necessary to return the cock 54 of the sluice valve 48 to the closed position in order to close the lid 46, forgetting to close the sluice valve 48 is reliably prevented.

Further, when the lid 46 is closed, the protrusion 55 provided inside the lid 46 causes the cock 54 of the sluice valve 48 to move.
Since the cock 54 is held in the closed position by abutting against it, even if the cock 54 is not properly placed in the closed position, the cock 54 is placed in the closed position at the same time when the lid 46 is closed, and the sluice valve 48 is securely installed. Closed to. Moreover, there is no concern that the cock 54 will move from the closed position to the open position due to vibration or the like during traveling, and reliability is improved.

The fuel filling device 45 may be applied to not only a scooter type vehicle but also a vehicle such as a gas fuel type automobile and other gas fuel type engines.

[0030]

As described above, in the gas fuel filling device for a gas fuel type scooter type vehicle according to the present invention, a lid for gas fuel filling is provided on a frame cover for covering the vehicle body so as to be openable and closable. In the gas fuel filling device of a gas fuel type scooter type vehicle, which is provided with a gas filling hole connected to a gas cylinder inside, and a sluice valve which is opened and closed by a cock is connected between the gas cylinder and the gas filling hole, the sluice valve Is arranged inside the lid close to the gas filling hole, and when the sluice valve is opened, the cock projects outward from the opening of the lid to prevent the lid from closing.

In this case, when the sluice valve of the gas filling hole is opened, the cock of the sluice valve projects outward from the opening of the lid, so that the lid cannot be closed. Therefore, it is confirmed that the gate valve has not been closed. Further, since it is necessary to return the cock of the sluice valve to the closed position in order to close the lid, it is possible to reliably prevent forgetting to close the sluice valve.

Further, when the lid is closed, a protrusion is provided inside the lid for abutting against the cock of the sluice valve to hold the cock in the closed position. Therefore, when the lid is closed, the protrusion is closed by the sluice valve. Abut the cock and hold it in the closed position. Therefore, even if the cock is not properly placed in the closed position, the cock is placed in the closed position at the same time when the lid is closed, and the sluice valve is reliably closed. Moreover, there is no concern that the cock will move from the closed position to the open position side due to vibration or the like during traveling, and reliability is improved.

[Brief description of drawings]

FIG. 1 is a left side view of a gas fuel type scooter type vehicle to which the present invention is applied.

FIG. 2 is a plan outline view of a gas fuel type scooter type vehicle.

FIG. 3 is a plan view taken along the arrow III in FIG.

FIG. 4 is a vertical sectional view taken along line IV-IV in FIG.

5 is a vertical cross-sectional view of the gas fuel filling device taken along line VV in FIG.

FIG. 6 is a front view of the gas fuel filling device according to the arrow VI of FIG. 2, showing an embodiment of the present invention.

[Explanation of symbols]

 1 gas fuel type scooter type vehicle 14 engine 21 frame cover 23 gas cylinder 34 primary pressure reducing valve 45 gas fuel filling device 46 lid 47 gas filling hole 48 gate valve 51 fuel filling pipe 53 filling nozzle 54 cock 55 protrusion

Claims (2)

[Claims] 1. A lid for gas fuel filling is provided on a frame cover for covering a vehicle body so as to be openable and closable, and a gas filling hole connected to a gas cylinder is provided inside the lid, and a cock is provided between the gas cylinder and the gas filling hole. In a gas fuel filling device for a gas fuel type scooter type vehicle to which a sluice valve that is operated to open and close is connected, the sluice valve is arranged inside the lid close to the gas filling hole, and when the sluice valve is opened. A gas fuel filling device for a gas fuel type scooter type vehicle, wherein the cock is projected outward from an opening of the lid to prevent the lid from closing. 2. The gas fuel type scooter type vehicle according to claim 1, further comprising a protrusion provided inside the lid for abutting against the cock of the sluice valve to hold the cock in the closed position when the lid is closed. Gas fuel filling device.