JPH0525308Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an emergency fuel supply device that has a simple structure, can be easily attached to various vehicles, and is easy to use.

(Prior Art) Conventionally, some devices of this type, such as those installed on motorcycles, operate an emergency kettle installed near the fuel tank when the gas runs out.
There is a system in which the fuel remaining at the bottom of the tank is supplied to the engine by switching the fuel supply path to the engine from the main pipe to the emergency pipe.

(Problem that the invention aims to solve) However, in this conventional device, after refueling the fuel tank, it is essential to switch the emergency kettle to its original position, but this operation is generally easy to forget and often There was a problem in that the fuel was used up by driving with the gas connected to the emergency pipe, making it impossible to cope with the next gas shortage.

The present invention solves these conventional problems and provides an emergency fuel supply system that can reliably cope with when a vehicle runs out of gas, and that can be easily installed and used in various vehicles. The purpose is to

(Means for Solving the Problem) Therefore, the emergency fuel supply device of the present invention is provided with a fuel supply valve at the lower end of a reserve tank that can be accommodated in the fuel tank, and an inlet that protrudes from the fuel tank. The oil conduit housed in the pipe is communicated with the reserve tank, one end of the operating rod for opening and closing the oil supply valve is guided to the upper end of the inlet pipe, and by operating the operating rod, the emergency It is characterized by the fact that fuel can be used easily and reliably.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. In Figs. 1 to 8, 1 is a fuel tank installed in a vehicle, and a hollow cylindrical reserve tank 2 stands upright inside the fuel tank. are accommodated. The reserve tank 2 is made of a flexible synthetic resin such as nylon, and has small-diameter projecting tubes 3 and 4 integrally molded at the center of its upper and lower conical surfaces. Among these, an annular step part 5 and a threaded part 6 are formed on the circumferential surface of the lower overhanging pipe 4, and an oil conduit pipe 7 is formed on the inner upper edge 6a of this threaded part 6.
The lower end surfaces of are engaged.

The oil conduit 7 is made of a long tube made of flexible synthetic resin such as nylon, and its lower end is tightly fitted to the inner peripheral surface of the base of the overhang tube 4, and its upper end is It fits into the overhang pipe 3 with an appropriate margin, and its upwardly protruding portion is accommodated in an inlet pipe 8 projecting from the upper part of the fuel tank 1.

A pair of elongated holes 9 are provided on the circumferential surface of the oil conduit 7.
9 is formed along the axial direction, and the upper ends of the holes 9, 9 are located on the outside of the overhang tube 3 as shown in the figure.
Overflow during oil supply is encouraged, and the oil conduit 7 is made flexible in bending through the holes 9, 9. An attachment 1 made of flexible synthetic resin such as polyurethane is attached to the upper end of the oil conduit 7.
0 is attached, which is formed approximately in the shape of a funnel,
A tubular attachment holder 10a that can fit into the oil conduit 7 is integrally provided at its base, and these can be inserted into the inlet pipe 8.

On the other hand, a valve housing 11 is connected to the lower end of the reserve tank 2, and the housing 11 is integrally molded with synthetic resin or the like. is formed. Among these, on the inner circumferential surface of the valve chamber 13, there is a threaded portion 15 that can be screwed into the threaded portion 6.
A convex portion 16 extending downward is provided at the center of the partition wall 12, and a through hole 17 is formed in the portion 16 to communicate the valve chamber 13 and the delivery chamber 14.

A tapered sheet portion 12a is formed at the upper opening edge of the through hole 17, and this sheet portion 12a
A refueling valve 18 such as a ball valve can be seated on the holder. The oil supply valve 18 is made of lightweight synthetic resin such as nylon, and has a center pin 19 screwed into its interior from below, and a projection 2 at the lower end of the pin 19.
A washer 20 is locked via 1.

A plurality of through holes 23 are formed in the washer 20 around a pin hole 22 through which the center pin 19 is inserted, and a spring 24 is inserted between the washer 20 and the lower surface of the partition wall 12. urges the oil supply valve 18 downward through its restoring force,
This keeps the valve closed.

On the other hand, the center pin 19 has a small hole 26 above the threaded portion 25, and is connected to the lower end of the operating rod 28 via a link 27 inserted through the hole 26. The operating rod 28 is made of a flexible synthetic resin such as nylon and is elongated, and is housed in the oil conduit 7, with its upper end protruding above the oil conduit 7 and connected to the upper end of the inlet pipe 8. A grip portion 29 is provided at the upper end.

Discharge holes 30, 3 are provided on the circumferential surface of the delivery chamber 14.
0 is opened, and a stepped hole 31 is opened at the lower end of the chamber 14, and a magnet 3 is inserted into the hole 31.
2, the hole 31 is closed. The lower end of the magnet 32 protrudes downward from the lower end of the valve housing 11, and is capable of adhering to the bottom surface of the fuel tank 1 with its lower surface.
In addition, 33 in the figure is a cap detachably attached to the upper end of the inlet pipe 8, 34 and 35 are connecting holes formed at the upper and lower ends of the operating rod 28, and 36 is a fuel oil.

FIGS. 9 to 12 show other embodiments of the present invention, and the same reference numerals are used for parts corresponding to those of the embodiments described above. In this embodiment, the preliminary tank 2 is formed into a substantially spherical shape instead of a cylindrical shape, and has a bellows-shaped peripheral surface so that it can expand and contract in the vertical direction, and an oil conduit 7 is connected to the bottom of the tank. Instead, the lower end of the tube 7 is screwed into the overhanging tube 3 to connect it, and the attachment holder 10a is screwed into the upper end of the tube 7 to make the connection reliable and strong. In the figure, 37 is a through hole provided at the base of the oil conduit 7 for overflow.

On the other hand, a valve housing 11 is oil-tightly connected to the bottom of the reserve tank 2 by heat sealing or the like, and a synthetic resin housing cap 38 is attached to the upper end of the valve housing 11. The cap 38 has a plurality of engaging claws 39 that protrude inward, and these are connected to an opening window 4 formed on the upper circumferential surface of the housing 11.
By engaging with the mouth edge of 0, they are integrally connected.

A center pin 19 is located at the bottom of the valve chamber 13.
A refueling valve 18 integrally molded with the delivery chamber 14 is housed therein, and a socket 41 is rotatably inserted into the delivery chamber 14, and its flange 41a engages with the bottom of the chamber 14. A slot 42 is formed at the lower end of the socket 41, and a stud 43 is inserted inside this slot.
are inserted, and these are connected via a pin 44.

The stud 43 is engaged with the magnet 32, so that the reserve tank 2 can rotate around the socket 41 and can be raised and lowered along the slot 42, so that the installation position of the magnet 32 can be adjusted. Depending on the position of the inlet pipe 8 and the position of the inlet pipe 8, it is possible to install the tank 2 in a tilted state as shown in FIG. 11, for example.

In other words, in this embodiment, the main parts are assembled reliably, and the reserve tank 2 is given a degree of freedom in its accommodation position within the fuel tank 1, making it possible to install it in various types of tanks 1. It is characterized by points.

In addition, when the reserve tank 2 is forced to fall down as shown in Figure 11, a degassing pipe 45 with one end curved is inserted into the tank 2 as shown in Figure 12, and the other end is connected to an oil conduit pipe. 7, the air trapped in the tank 2 is led out above the oil level in the tank 2 through a degassing pipe 45.
By letting the water out of the tank 2 through the
It is desirable to increase the amount of fuel that can be accommodated within the tank.

(Function) When assembling the emergency fuel supply system configured as described above, the oil conduit 7 and the operating rod 28 are set to an appropriate length in advance according to the structure and dimensions of the fuel tank 1 and inlet pipe 8 of each vehicle. The height of the attachment 10 is adjusted by cutting the attachment 10 itself, and the attachment 10 is placed in its attachment holder 10a.
It is attached to the upper end of the oil conduit 7 via.

Further, the center pin 19 containing the spring 24 is inserted onto the washer 20 from below the through hole 17 formed in the partition wall 12, and the spring 24 is inserted into the washer 20 from below.
The pin 19 is screwed into the oil supply valve 18 while the upper end is seated on the lower surface of the partition wall 12. A center pin 19 positioned above the fuel supply valve 18
The link 27 is inserted into the small hole 25 of the connecting hole 35 formed at the lower end of the operating rod 28.
into the valve housing 11 and the oil supply valve 18.
and the operating rod 28 are integrally assembled.

After this, the magnet 32 is attached to the stepped hole 31 of the valve housing 11 using adhesive, for example.
While closing the hole 31, the grip portion 29 is assembled into the connecting hole 34 at the upper end of the operating rod 28.

After the assembly of each part is prepared in this way, the valve housing 11 is screwed into the threaded part 6 of the reserve tank 2 via the threaded part 15 to connect them. At that time, the operating rod 2 connected to the link 27
8 is inserted from below into the preliminary tank 2, and is placed so as to protrude above the overhanging pipe 3 in advance. and,
After this, the oil conduit 7 with the attachment 10 attached is inserted into the preliminary tank 2 from the side of the overhang tube 3, its lower end is inserted into the overhang tube 4, and pushed into the position where it abuts the upper edge 6a. The operating rod 28 is housed within the oil conduit 7.

The device of the present invention assembled in this way is as shown in Figure 2, and when it is actually installed inside the fuel tank 1, the reserve tank 2 is rolled up around the oil conduit 7 as shown in Figure 7. It is formed into a shaft shape, and inserted into the inlet pipe 8 from the valve housing 11 side while maintaining this state.

In this case, since the reserve tank 2 is made of a flexible material such as nylon, it can be rolled up as described above, and even when it is inserted into the inlet pipe 8, it can be inserted into the long holes 9, 9. By having this, the flexibility of the oil conduit 7 is maintained, and the rolled reserve tank 2 also has appropriate flexibility, so it can quickly adapt to the structure of the inlet pipe 8 of each vehicle. This allows for smooth and easy insertion.

In this way, when the reserve tank 2 falls into the fuel tank 1, the magnet 32 at the lower end attracts the bottom surface of the tank 1 and supports the reserve tank 2 in an upright position.
In addition, the edge of the attachment 10 attached to the upper end of the oil conduit 7 that protrudes above the tank 2 comes into close contact with the inner circumferential surface of the inlet pipe 8 as shown in the first figure, and the frictional force and pressure contact force The standby tank 2 is maintained in an upright position to form its fixed state.

Then, around the time when such a fixed state is formed, the reserve tank 2 falls into the fuel tank 1 and recovers its original shape due to its elasticity, while the upper part of the operating rod 28 protrudes upward from the attachment 10. ,
The gripping portion 29 is positioned at the upper end of the inlet pipe 8 as shown in the first figure. Further, the oil supply valve 18 connected to the lower end of the operating rod 28 is
The center pin 19 connected thereto is urged downward via the spring 24, thereby seating on the seat portion 12a and maintaining the valve closed state.

When fuel oil is injected from the inlet pipe 8 under such circumstances, the fuel flows down the pipe 8 and is guided into the attachment 10, and from the attachment 10 along the oil conduit 7 into the valve chamber 1.
After the chamber 13 is filled, it overflows into the reserve tank 2 from the lower edge of the elongated hole 9 and fills the tank 2. When the preliminary tank 2 is completely filled, the fuel oil overflows from the elongated hole 9 located above the overhang pipe 3 and substantially fills the fuel tank 1.

In this way, when injecting the fuel oil, the reserve tank 2 is filled before the fuel tank 1 is filled, so that the reserve tank 2 is reliably filled. Note that when the reserve tank 2 is filled with fuel oil, its weight and oil pressure will act on the tank 2, but the rigidity of the tank 2 will prevent it from losing its shape.
That failure will be prevented.

Furthermore, the reserve tank 2 after refueling exerts a complicated external force on the oil conduit 7 due to vibrations and rocking when the vehicle is running. However, the upper and lower ends of the oil conduit 7 are strongly supported by the contact surface pressure of the attachment 10 to the inlet pipe 8 and the adsorption force of the magnet 32 via the valve housing 11, and the overhang pipe 3 and the oil conduit Resonance with the reserve tank 2 is avoided by the gap between the holes 9 and 7, while the elongated holes 9 and
Since the vibration to the pipe 7 is attenuated by the flexibility of the pipe 9, the reserve tank 2 will not be overturned due to the vibration. Further, in this case, the vibration is also damped by the fuel in the fuel tank 1.

In this way, as the vehicle travels, the fuel oil 36 in the fuel tank 1 is consumed, and if the vehicle runs out of gas, the vehicle becomes unable to operate, but even in this case, the fuel oil 36 in the reserve tank 2 is not consumed. The original full capacity is maintained.

Therefore, when supplying the fuel oil 36 in the reserve tank 2 to the engine in such a state, remove the cap 33 of the inlet pipe 8, hold the grip part 29 located at the upper end of the pipe 8, and hold it. Just pull it upwards. In this way,
The operating rod 28 connected to the grip 29 is pulled up, the link 27 connected to the lower end of the rod 28 moves together, and the center pin 19 moves upward against the spring 24.

For this reason, the oil supply valve 1 integrated with the center pin 19
8 moves together with the pin 19 and is pulled up from the seat portion 12a, forming the valve open situation as shown in FIG. Therefore, the fuel in the reserve tank 2 is guided from the valve chamber 13 through the through hole 17 to the delivery chamber 14 as shown by the arrow in the above diagram, and from the chamber 14 is delivered to the washer 20.
The fuel tank 1 is inserted through the through hole 23 and from the discharge hole 30.
is discharged to. Therefore, after this, the above fuel oil 3
6, vehicle operation can be resumed.

On the other hand, after the fuel is discharged from the tank 2, the grip part 2
By stopping the tensioning operation of 9 and restoring the original state of the operating rod 28, the center pin 19 is moved to the spring 24.
The oil supply valve 18 is pulled down by the seat portion 12.
A is seated and the valve is closed.

(Effects of the invention) As described above, the emergency fuel supply device of the invention has the following features:
A refueling valve is provided at the lower end of a reserve tank that can be accommodated in the fuel tank, an oil conduit housed in an inlet pipe protruding from the fuel tank is communicated with the reserve tank, and an operating rod for opening and closing the refueling valve is provided. By leading one end to the upper end of the inlet pipe and opening the fuel supply valve by operating the above-mentioned operating rod, the emergency fuel stored in the reserve tank is supplied to the fuel tank, making it easy to use. Moreover, since the structure is simple, it has the advantage of being easy to manufacture.

In addition, since the present invention accommodates a reserve tank within the fuel tank, it is possible to reliably refuel the reserve tank when refueling the fuel tank, and on the other hand, even when the fuel in the fuel tank is used up, the amount of fuel in the reserve tank remains unchanged. Since the original amount of fuel is maintained, this has the practical effect of ensuring that the fuel in the reserve tank can be used as emergency fuel even in the event of a gas shortage.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of the present invention, showing how it is installed, Fig. 2 is an enlarged sectional view showing the main parts of the invention, and Fig. 3 is a sectional view showing the main parts of the invention. FIG. 4 is an enlarged cross-sectional view showing the closed state of the fuel supply valve applied to the present invention, and FIG. 5 is an enlarged cross-sectional view showing an example of the valve housing applied to the present invention. Fig. 6 is a cross-sectional view taken along the line A-A' in Fig. 4, Fig. 7 is a perspective view showing the situation when the device of the present invention is accommodated in the inlet pipe and fuel tank, and Fig. 8 is a cross-sectional view taken along line A-A' in Fig. 4. 9 is a partial sectional view showing another embodiment of the present invention, and FIG. 10 is an enlarged view of the essential parts of the other embodiment. A cross-sectional view, FIG. 11 is an explanatory view showing an example of a storage situation in a fuel tank of a reserve tank applied to another embodiment, and FIG. 12 is an explanatory view showing a deaeration state in the reserve tank. 1...Fuel tank, 2...Spare tank, 7...
Oil conduit, 8... Inlet pipe, 18... Oil supply valve, 28... Operation rod.

Claims (1)

[Scope of utility model registration request] A refueling valve is provided at the lower end of a reserve tank that can be accommodated in the fuel tank, an oil conduit housed in an inlet pipe protruding from the fuel tank is communicated with the reserve tank, and an operating rod for opening and closing the refueling valve is provided. An emergency fuel supply device characterized in that one end is led out to the upper end of an inlet pipe.