JP3079304B2 - Cartridge type fuel tank - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type fuel tank which is installed in a combustion device such as an oil stove and stores kerosene.

[0002]

2. Description of the Related Art FIG. 8 shows a conventional cartridge type fuel tank of this kind. FIG. 8A is a side view in a partially cut-out state, and FIG. 8B is a longitudinal sectional front view in a partially cut-out state.
In this figure, B is a fuel tank, 1 is a fuel tank main body, 2 is an upper portion of a side surface of the fuel tank main body 1 (in a non-mounted state,
An oil amount window provided on the upper part of the fuel tank at the time of lubrication and for visually checking the oil amount in the fuel tank B.
A refueling cap provided on the upper surface of the refueling port, a refueling cap for closing the refueling port by being removably screwed into the refueling port;
Reference numeral 601 denotes a valve that is opened by a push-up pin of the combustion device to supply fuel when the fuel tank B is mounted on the combustion device with the fuel tank B facing downward.

[0003] This conventional cartridge type fuel tank B
In the above, only one oil amount window 2 is usually provided, and when the fuel is supplied, the oil supply port 3 is turned upward and the oil is supplied.
Is located in the upper part of the fuel tank B, and the oil amount can be confirmed only near the full amount. When the fuel tank B is mounted on the combustion apparatus with the fuel tank B facing downward, the fuel supply port 3 is located on the lower side, and the fuel is supplied to the combustion apparatus. At this time, the oil amount window 2 is located below, and when the oil amount decreases and the fuel tank B approaches the empty amount, it can be confirmed from the oil amount window 2.

[0004] The oil amount window 2 is made of a transparent body, and when it is immersed in a liquid, it transmits light so that the inside, that is, the amount of oil can be confirmed. There is no structure.

[0005]

In the above-mentioned conventional cartridge type fuel tank, the transparent liquid contact portion constituting the oil amount window 2 does not protrude from the outer shell of the tank main body almost flush with the outer shell of the tank main body. In addition, it is not in the shape of a container,
Because the interior was dark, the color of the liquid in the fuel tank, that is, the type of liquid, could not be identified even though the amount of oil could be confirmed. The liquid color of kerosene was almost transparent, the liquid color of gasoline was orangeish, and the liquid color of oxidized defective kerosene was yellowish, but these could not be identified. For this reason, defective kerosene may deteriorate the combustion device,
There is a possibility that you may not notice even if it is wrong with gasoline.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to make it possible to confirm the color of a liquid contained in a fuel tank and to determine whether the liquid is kerosene, gasoline or oxidized liquid. It is an object of the present invention to provide a cartridge-type fuel tank that can identify whether the kerosene is defective or not, and can avoid an accident with gasoline and deterioration of the combustion device due to the defective kerosene.

[0007]

According to a first aspect of the present invention, there is provided a cartridge type fuel tank which is connected to a fuel tank main body in a state where a liquid contact portion protrudes outside the outer periphery of the fuel tank main body. It is characterized by a container-shaped transparent body confirmation window attached. Since the transparent body confirmation window has a container shape protruding outside of the outer periphery of the fuel tank main body, the inside is bright and the color of the liquid inside can be identified.

According to a second aspect of the present invention, there is provided the cartridge type fuel tank according to the first aspect, wherein
It is characterized in that a luminous body for emitting light into the inside thereof and a lens for entering the light and scattering it to the outside are provided. Light is emitted from the luminous body to the liquid inside the container-shaped transparent body confirmation window filled with liquid, and the light transmitted through the liquid is received by the lens and scattered. Liquid can be more clearly identified.

According to a third aspect of the present invention, there is provided a cartridge type fuel tank according to the second aspect, wherein the luminous body emits blue light. When blue light is used, the liquid color is almost transparent in the case of kerosene, so the apparent color of the lens that has passed through the kerosene remains the same blue, and in the case of gasoline, the liquid color is orange because the liquid color is orange. The apparent color is yellow, and in the case of oxidized defective kerosene, the liquid color is yellowish, so the apparent color on the lens is brown. The color difference allows the type and state of the liquid injected into the fuel tank to be clearly confirmed.

According to a fourth aspect of the present invention, there is provided a cartridge type fuel tank according to the second or third aspect, wherein a switch which closes in accordance with a change in the attitude of the luminous body to a lubricating state is inserted in the circuit. It is characterized by having. Only when lubricating, the switch is turned on to turn on the light emitter, and at other times, the switch is turned off and the light emitter is turned off, so that the life of the battery incorporated as a power source is extended.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a cartridge type fuel tank according to an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a partially cutaway side view showing a state in which the fuel tank is set in the combustion device, FIG. 2 is a perspective view of a partially cutaway fuel tank in an upright state, and FIG. 3 is a state in which fuel is supplied to the fuel tank. FIG. 4 is a perspective view of a disassembled state of the fuel tank, FIG. 5 is a longitudinal sectional side view of an enlarged main part showing a state of checking a liquid when lubricating the fuel tank, and FIG. FIG. 7 is an electrical wiring diagram of the fuel tank, with a main part enlarged in a set state.

First, the state of setting the fuel tank A with respect to the combustion device will be described with reference to FIG. A core 54 is guided between the core inner cylinder 51 erected at the bottom of the fuel tank 50 on the combustion device side and a core outer cylinder 53 mounted on the upper part of the fuel tank 50 via a packing 52 so as to be able to move up and down. Is provided. An oil pan 55 is provided at one end of the fuel tank 50.
The cartridge type fuel tank A according to the present embodiment is set in the oil receiving tray 55 in an upside down posture. An oil supply cap 6 is provided at the upper end (the lower end in FIG. 1) of the fuel tank body 1, and a valve 601 is provided in an oil passage of the oil supply cap 6 (see FIG. 2). The valve 601 is opened by a push-up pin 56 provided at the center of the oil receiving tray 55, and the fuel is supplied from the cartridge type fuel tank A to the fuel tank 50 of the combustion device.

As shown in FIG. 2, an oil amount window 2 for checking the oil amount is provided on the side of the fuel supply cap 6 on the side surface of the fuel tank main body 1. This oil amount window 2 is substantially flush with the outer shell of the fuel tank body 1. A container-like transparent body confirmation window 4 protruding from the outer periphery of the fuel tank main body 1 is provided at a position opposed to the oil amount window 2 in the vertical direction, that is, near the lower end side which is the bottom of the tank at the time of lubrication.

Next, the structure of the transparent body confirmation window 4 will be described with reference to FIGS. 2, 4 and 5. FIG. The transparent body confirmation window 4 made of a transparent body has a window packing 12 so as to wrap the peripheral edge thereof.
Is attached. A hole 403 for mounting a lamp is formed on the lower surface of the transparent body confirmation window 4, and the lamp 5 is mounted in this hole. The light of the lamp 5 travels inside the transparent body confirmation window 4 along the liquid contact portion 401 on the inner surface thereof. A light receiving lens 402 for receiving light from the lamp 5 is provided on the upper surface of the transparent body confirmation window 4. The light received by the light receiving lens 402 is scattered to the outside in all directions. The lamp 5, the battery 13, and a circuit are incorporated in the circuit case 9. A battery replacement battery cover 901 provided with an electrode 902 is detachably mounted on the lower surface of the circuit case 9. The lamp 5 protruding from the circuit case 9 is inserted into the hole 403 on the lower surface of the transparent body confirmation window 4, and the transparent body confirmation window 4 and the circuit case 9 are inserted.
And is attached to the square hole 102 on the side surface of the fuel tank main body 1 with the screw 14 via the confirmation window frame 10.

Next, the structure of the reed switch 7 will be described. The cylindrical magnet 15 is slidably fitted outside the cylinder 701 of the reed switch 7, and a contact 702 that operates by the vertical movement of the cylindrical magnet 15 is sealed inside the cylinder 701 in a liquid-tight state. At the end of the cylinder 701, a stop ring 16 for preventing the cylindrical magnet 15 from dropping is mounted. The reed switch 7 is attached to the round hole 103 of the bottom 101 of the fuel tank main body 1 with a screw 18 via a packing 17. As shown in FIG. 7, the reed switch 7 is connected to the wiring
1 is interposed.

Next, the operation of the cartridge type fuel tank A configured as described above will be described. When the attitude of the fuel tank A is turned upside down with the oil supply cap 6 turned up for lubrication, the cylindrical magnet 15 of the reed switch 7 is located at the bottom by its own weight as shown in FIGS. Is turned on, and the lamp 5 provided in the transparent body confirmation window 4 is turned on. Remove the filler cap 6 and lubricate through the filler port 3.

The light emitted from the lamp 5 is applied to the liquid contact portion 4
01, the liquid contained in the transparent body confirmation window 4 is transmitted while communicating with the fuel tank A, and the light receiving lens 4
02, the color of the liquid can be confirmed by visually observing the color of the light scattered from the light receiving lens 402.

Next, the operation when the fuel tank A is set in the combustion device will be described. As shown in FIG. 6, when the fuel tank A is set in the combustion device, the refueling cap 6 is on the lower side, the transparent body confirmation window 4 and the reed switch 7 are on the upper side, and the cylindrical magnet 15 of the reed switch 7 is refueled by its own weight. The contact 702 is turned off because it moves to the cap 6 and is received by the stop ring 16. Therefore, the lamp 5 provided on the transparent body confirmation window 4 is turned off.
Only when lubricating, the reed switch 7 is turned on to turn on the lamp 5, and when set in the combustion device, the reed switch 7 is turned off and the lamp 5 is turned off.
3 can last longer.

Next, the lamp 5 will be described. Light bulbs, LEDs, or the like are used as light emitters for the lamp 5, and the emission color is changed according to the type of liquid to be identified, thereby making it easier to identify the liquid. In the case of the present invention, since identification of kerosene and gasoline is a main issue, identification is facilitated by using a lamp of a blue emission color. That is, when a blue system lamp is used, the liquid color is almost transparent in the case of kerosene, so that the apparent color of the light-receiving lens 402 that has passed through the kerosene looks the same blue, but in the case of gasoline, the liquid color is orange. Due to the shading, the apparent color at the light receiving lens looks yellow. In the case of oxidized defective kerosene, the liquid color is yellowish, so the apparent color at the light receiving lens appears brown. Thereby, the type and state of the liquid injected into the fuel tank A can be clearly confirmed. In addition, since the transparent body confirmation window 4 is located at the lower portion of the fuel tank A at the time of injection (see FIGS. 3 and 5), it can be identified at an early stage of injection of the liquid.

In the above-described embodiment, the transparent body confirmation window 4 is provided separately from the oil amount window 2, but the oil amount window 2 and the transparent body confirmation window 4 are configured to serve as both. Is also good. That is, the transparent body confirmation window 4 is provided at the position of the oil amount window 2. However, in this case, the liquid can be identified when the liquid is almost full. Also, the fuel tank 1
The reed switch 7, which automatically opens and closes in response to a change in the posture in the up-down direction, may not necessarily be attached, and a manual switch may be provided instead.

At the time of refueling, the manual switch is turned on to turn on the lamp 5 to check the color of the liquid. If the liquid is normal, the switch is manually turned off.

Further, the embodiment may be implemented in a form in which the lamp 5 and the light receiving lens 402 are omitted from the transparent body confirmation window 4.
Since the transparent body confirmation window 4 is mounted so as to protrude outward from the outer shell of the fuel tank body 1, the inside of the transparent body confirmation window 4 is bright, and the liquid contact portion 4 of the transparent body confirmation window 4 is provided.
This is because the color of the liquid that has reached the inner surface of No. 01 can be clearly confirmed through the transparent body confirmation window 4.

[0023]

According to the cartridge type fuel tank of the first aspect of the present invention, since the transparent body confirmation window has the shape of a container projecting outward from the outer periphery of the fuel tank body, the inside thereof can be brightened. Therefore, whether or not the liquid is normal can be recognized through the color of the liquid inside.

According to the cartridge type fuel tank of the second aspect of the present invention, light is emitted from the luminous body to the liquid inside the container-shaped transparent body confirmation window filled with the liquid,
Since the light transmitted through the liquid is received and scattered by the lens, there is no influence of extraneous light, and the color of the scattered light can more clearly identify the liquid inside.

According to the cartridge type fuel tank of the third aspect of the present invention, since a light emitting body which emits blue light is used as the luminous body, in the case of kerosene, the apparent color of the lens becomes blue, and the gasoline of gasoline is used. In the case of yellow, and in the case of oxidized defective kerosene, it turns brown.This difference in color makes it possible to clearly confirm the type and condition of the liquid injected into the fuel tank before attaching the fuel tank to the combustion device, Accidents with gasoline and deterioration of equipment due to bad kerosene can be avoided.

According to the cartridge type fuel tank of the fourth aspect of the present invention, the switch is turned on to turn on the light emitter only when lubricating, and the switch is turned off otherwise.
Since the light emitting body is turned off in this manner, the life of the battery incorporated as a power source can be extended.

[Brief description of the drawings]

FIG. 1 is a partially broken side view showing a state in which a cartridge type fuel tank according to an embodiment of the present invention is set in a combustion device.

FIG. 2 is a perspective view of a partially cut-out state of the fuel tank according to the embodiment in an upright state.

FIG. 3 is a perspective view showing a state of lubricating a fuel tank according to the embodiment.

FIG. 4 is a perspective view of the fuel tank of the embodiment in an exploded state.

FIG. 5 is an enlarged longitudinal sectional side view showing a state where a liquid is confirmed when lubricating a fuel tank according to the embodiment.

FIG. 6 is an enlarged longitudinal sectional side view of a main part in a state where the fuel tank of the embodiment is set in a combustion device.

FIG. 7 is an electrical wiring diagram of the fuel tank according to the embodiment.

FIG. 8 is a side view showing a conventional cartridge-type fuel tank in a partially cut-away state and a longitudinal sectional front view showing a partially cut-away state.

[Explanation of symbols]

 A: Cartridge type fuel tank 1 ... Fuel tank body 2 ... Oil amount window 3 ... Filler port 4 ... Transparent body confirmation window 401 ... Liquid contact part 402 ... Light receiving lens 5 ... Lamp 6 ... Refueling Cap 601 Valve 7 Reed switch 702 Contact 9 Circuit case 13 Battery 15 Cylindrical magnet

Claims (4)

(57) [Claims] 1. A cartridge type wherein a container-like transparent body confirming window communicating with the inside of the fuel tank is attached to the fuel tank main body in a state where the liquid contact portion protrudes outside the outer periphery of the fuel tank main body. Fuel tank. 2. The cartridge according to claim 1, wherein the transparent body confirmation window is provided with a luminous body that emits light to the inside thereof, and a lens that enters the light and scatters the light outside. Type fuel tank. 3. The cartridge type fuel tank according to claim 2, wherein the luminous body emits blue light. 4. The cartridge type fuel tank according to claim 2, wherein a switch that closes when the posture of the luminous body changes to the lubricating state is inserted in the circuit.