JPH0526096B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention, as shown in FIG. 4, relates to a cartridge type refueling tank used in oil burning appliances such as oil stoves and oil fan heaters.

<Conventional technology> Conventionally, this type of cartridge type refueling tank was
As shown in the figure, a screw C was formed in the oil filler port B provided protruding from one wall of the tank body A, and a oil supply device E was provided in the oil filler cap D, which was removably screwed into the oil filler port B. .

Therefore, it was simple in terms of cost and structure, and it was easy to handle and supply oil.

<Problems to be Solved by the Invention> By the way, when fuel becomes low during combustion, fuel is refilled into the tank body A, but after this replenishment, the tightening force of the oil filler cap D to the oil filler port B is weak. If your hand slips due to the fuel and you are unable to fully screw it all the way, carry the tank body A with the filler cap D side up, and when installing it in the tank chamber of a combustion appliance, turn the filler cap D side downwards. Due to the force of the fuel, the fuel leaks out from the gap between the oil filler cap D and the oil filler port B, and ignites due to residual flames or high heat in the combustion appliance body, resulting in many accidents resulting in fires.

Therefore, according to JIS standards, the opening diameter of oil filler port B is 20~
30mm, and the screw C must be completely connected with one rotation or more of the oil filler cap D, making it mandatory for safety.

However, unfortunately, as mentioned above, the oil filler cap D
The number of fires caused by insufficient tightening of bolts is not decreasing; in fact, the number of fires is increasing.

For this reason, various proposals regarding safety have been made in the past. For example, a hole is provided in the oil filler cap D, and this hole is normally closed from the inside with a valve or plate member. When refueling the tank body A, the tip of the refueling hose is inserted into this hole, but since the tank body A is relatively small and vertically long, it lacks safety, and there is a possibility that the tank body A and the refueling hose may Both ends of the tank must be supported by hand, making refueling troublesome and resulting in damage to the tank body A.
This is not realistic as it would cause the person to fall over or get their hands dirty with fuel.

Also, in order to prevent your hands from slipping due to fuel, it is also possible to install a refueling port and a refueling slit on the opposite wall of the tank body A to the wall on the side of the oil filler port B (the side where the hanging hand is provided). .

In this case, the tightness of the seal between the refueling port and the refueling nozzle becomes a problem, and if the tightening force is weak or the packing material deteriorates, all the fuel in the tank body A will overflow, causing the combustion equipment to burn. It is also a very dangerous method because it can ignite and cause a fire, and the automatic fuel replenishment function, which is the most advantageous feature of cartridge tanks, is lost.

In this way, in reality, there was no product on the market that was still easy to use and was sufficiently safe.

<Means for Solving the Problems> This invention was invented in order to improve the safety against the above-mentioned drawbacks, and its structure is such that the oil filler cap is equipped with a lubricant device on the oil filler hole that protrudes from the tank body, and is made of packing material. At the same time, the oil filler cap projects from the base and supports one side of the base with a shaft, and a locking means is provided on the other side of the base and is removably locked by the locking means. It is related to the ups and downs of the earth.

<Function> When replenishing fuel into the tank body 1, press the operating knob 17 of the locking means 15 of the base 5 in the state shown in FIG.
When pressed against the spring 21, the locking pawl 19 is separated from the stopper 22. Therefore, if the holding piece 23 etc. is held and rotated, the oil filler cap 4 opens into the oil filler hole as shown in FIG. 2 is opened and the oil is supplied to the oil filling port 2 by the oil supply means.

<Embodiment> Reference numeral 1 denotes a cartridge-type tank body which is vertically elongated and used for well-known kerosene stoves and kerosene fan heaters, and has an oil filler port 2 protruding from only one wall surface.

The wall surface around the oil filler port 2 is formed into a concave shape 3 than the others.

Reference numeral 4 denotes an oil filler cap having an inverted concave shape, which projects from the base 5.

The outer diameter of the oil filler cap 4 is larger than the outer diameter of the oil filler port 2, and its height is lower than that of the oil filler port 2.

Reference numeral 6 denotes a refueling device that automatically supplies fuel, which is attached to the oil filler cap 4 by being crimped, and includes an on-off valve 7, a stem 8, a spring 10 that constantly biases the on-off valve 7, and a valve case having a communication port 11. It consists of 12.

Of course, the oil supply device 6 may be attached to the opening on the side of the oil filler port 2 attached to the oil filler cap 4 in this embodiment.

Reference numeral 13 denotes an oil-resistant packing material attached to the bottom of the inner surface of the oil filler cap 4, which is brought into close contact with the tip of the oil filler port 2 to prevent fuel from leaking.

Although the packing material 13 is attached to the oil filler cap 4 in this embodiment, it is of course possible to fit it to the tip of the oil filler port 2.

The base 5 of the oil filler cap 4 is connected to the tank body 1.
Its periphery is bent to the front and back sides of the side facing the recess 3 to a size that does not contact the recess 3, and the shaft is attached to the end wall surface of the tank body 1 via the shaft 14. Support, the entire base 5 is attached to the shaft 1
The oil filler cap 4 covers the oil filler port 2 with the oil filler cap 4 as the center, and is freely undulating so that it comes into close contact with the packing material 13, and the base 5 on the opposite side is connected to the tank body 1.
A locking means 15 is provided which is bent along the side wall surface side and is locked and separated from the end portion side.

Also, since the base 5 is sized to fit into the recess 3 of the tank body 1, when the oil filler cap 4 is brought into close contact with the oil filler port 2, one wall surface of the tank body 1 and the surface of the base 5 are at the same height, making it easier to use the existing combustion engine. The dimensions are the same as the tank body 1 of the device to maintain compatibility.

The reason why the peripheral edge of the base 5 is smaller in size than the recess 3 of the tank body 1 is to increase the strength and not to impair the closeness between the oil filler port 2 and the oil filler port cap 4.

The locking means 15 has an operating knob 17 supported on a shaft 14 protruding outward from an opening 18, a locking pawl 19 on the tip side, a stopper 20 on the opposite side, and a spring 21. It is always elastically installed on the locking claw portion 19 side.

A holding piece 23 is bent and protrudes from the end of the base 5 on the locking means 15 side.

In this embodiment, one locking means 15 is provided on the other side of the base 5, but in terms of design, a plurality of locking means 15 may be installed on the tank body 1 side to lock the base 5 itself. Furthermore, providing a locking means for the locking means 15 further ensures safety.

Next, when refilling the tank body 1 with fuel, the first
In the state shown in the figure, the operation knob 1 of the locking means 15 of the base 5 is
When 7 is pressed against the spring 21, the locking claw part 19 is separated from the stopper 22. Therefore, if the holding piece 23, etc. is held and rotated, the oil filler cap 4 is filled with oil as shown in FIG. It is sufficient to open the port 2 and supply the oil to the oil filler port 2 using the oil supply means.

When the fuel supply is finished, the locking means 15
Hold the holding piece 23 etc. on the side and rotate it downward,
By pressing a little hard, the locking claw part 19 makes a clicking sound and is locked to the stopper 22, as shown in FIG. 1 or 3.
It will be in the state shown in the figure.

At the same time, the oil filler port 2 and the oil filler cap 4 are securely brought into close contact with each other via the packing material 13, so that there is no fuel leakage.

In this state, the tank body 1 may be turned upside down and installed in the tank chamber as shown in FIG.

In addition, after refilling the tank body 1 with fuel in the state shown in Figure 2, simply rotating and pressing the base 5 is a simple one-touch operation, and the locking is clearly confirmed by the click sound. can.

Also, when the locking means 15 is not locked, the base 5 and the oil filler cap 4 will wobble, which can also be confirmed.

Next, as shown in FIG. 4, the tank body 1 may be installed in the tank chamber of the combustion appliance. In this state, only the tip of the filler cap 4 is in contact with the fuel, and the base 5 is not in contact with the fuel. Therefore, when refueling next time, there is no need to get your hands dirty with fuel, and especially since the locking means 15 to be operated is located on the side wall surface of the tank body 1, your hands will not get dirty at all.

<Effects of the Invention> As described above, the present invention has one of the bases of the oil filler cap pivotally supported on the wall of the tank body, and the other base of the oil filler cap being removably locked to the opposite wall of the tank body by a locking means. As a result, the oil filler port can be opened and closed with a single touch, making it convenient to handle.In particular, since it is not a screw-in type, the risk of fire due to fuel leakage caused by adjusting the tightening force or slipping is eliminated.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a perspective view of the same in an open state, Fig. 3 is a sectional view of the main parts,
FIG. 4 is a partially sectional front view of the conventional example and the present invention in use, and FIG. 5 is a perspective view of essential parts of the conventional example. 1... Tank body, 2... Oil filler port, 4... Oil filler cap, 5... Base, 13... Packing material,
15...Locking means.

Claims (1)

[Claims] 1. The oil filler cap 4 equipped with the oil supply device 6 is brought into close contact with the oil filler port 2 protruding from the tank body 1 via the packing material 13, and the oil filler cap 4
protrudes from the base 5, one side of the base 5 is pivotally supported by a shaft 14, and a locking means 15 is provided on the other side of the base 5, and the locking means 15 is used to detachably lock the base 5 to raise the base 5. Cartridge type fuel tank consisting of.