JP3054051B2 - Refueling tank full notification device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel tank, particularly a car used in a petroleum fan heater, a portable stove or the like.
The present invention relates to a fullness notification device provided in a cartridge tank.

[0002]

2. Description of the Related Art As disclosed in Japanese Patent Application No. 6-248784, filed by the present applicant, when the refueling of a refueling tank becomes full, a fuel tank of this type has been used. The buzzer sounds to inform the user, and the problem of soiling the floor due to the overflow of fuel oil and the like is surely prevented.

[0003]

In this conventional apparatus, the buzzer is provided directly opposite the cover hole of the cover body for emitting a buzzer sound. If the fuel oil flows along the outer wall of the fuel tank and hits the cover hole when supplying fuel, etc., the buzzer breaks down due to the fuel oil entering from the cover hole and it is not possible to report the full amount. Have Further, since the buzzer and the cover hole are in direct contact with each other, there is a disadvantage that the sound cannot be heard unless the sound is muffled and close.

[0004]

In order to solve the above-mentioned drawbacks, the present invention focuses on this point. In particular, the present invention is provided with a full-amount notification for notifying when the amount of fuel supplied to the refueling tank becomes full. In the apparatus, the full-amount notification device includes a movable portion formed of a float and a magnet protruding inward from an opening formed in the refueling tank, and a notification mounted outside so as to close the opening. The notification unit accommodates a lead switch, a buzzer body, a printed board, a button battery, and the like.A sound emission hole is provided in front of the buzzer body through an acoustic space. The cover body in front of the sound emission hole is provided with a cover hole so as not to face the sound emission hole. The cover hole has a size such that the surface tension of the fuel oil is generated.

[0005]

When the refueling amount of the fuel tank 1 is almost full, the movable portion 18 provided in the fuel tank 1 rotates according to the oil level, and the limit switch 25 is closed. The buzzer body 28 emits an alarm sound for a fixed time under the control of the printed board 27.

The warning sound is emitted from the buzzer body 28 through the sound space 34, through the sound emission hole 35, and from the cover hole 36, so that the sound is resonated without reverberation and can be heard well far. It is.

Further, even when fuel oil is applied to the cover hole 36, the sound emission hole 35 is provided at a position not facing the cover hole 36, so that the fuel oil does not directly reach the buzzer body 28 and is notified. There is no worry that you will not be able to
Also, since the cover holes 36 are arranged in an upright state so that the straight line connecting the cover holes 36 becomes an inverted triangle, the fuel oil flowing from the cover holes 36 flows out from the lower cover holes 36 as it is. Therefore, it can be always used without any trouble without remaining in the full amount notification device 16 and causing a failure.

On the other hand, by making the cover hole 36 large enough to generate the surface tension of the fuel oil, the inflow of the fuel oil from the cover hole 36 can be easily prevented with a simple structure.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an apparatus for informing a fuel tank of a fuel tank according to the present invention will be described with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a cartridge-type refueling tank which is provided so as to be capable of entering and leaving an oil fan heater or the like.
An oil supply port 2 is provided on the upper side and fixed by a fixing plate 3.

Reference numeral 4 denotes a fuel filler cap for closing the fuel filler 2, which is provided with a valve device 5 which is opened when set to an appliance and a packing body 6 which is in close contact with the fuel filler 2.
As a whole, it is fixed to a base 9 which can be raised and lowered by a reaction force of an elastic member 8 with a shaft support 7 at one end as a fulcrum.
Reference numeral 10 denotes a locking lot provided on the fixing plate 3, which locks the hook fitting 11 provided on the base 9 to close the oil filler port 2 and pulls the operation button 12 protruding outward. The lock is released, and the base 9 is automatically erected to open the fuel filler 2.

Reference numeral 13 denotes an oil meter provided on a side wall on the operation button 12 side of the refueling tank 1, and a display window 14 formed by covering the outer periphery of a transparent synthetic resin with a packing (not shown); And a cover 15 which covers the oil level from the transparent display window 14 to expose a certain range of 75 to 90% of the tank capacity.

Reference numeral 16 denotes a full-amount informing device provided on the same wall as the oil amount meter 13 at a distance from the oil amount meter 13. A movable portion 18 for detecting the amount, and a packing 1 for supporting the movable portion 18 and closing the opening 17 on the side wall of the refueling tank 1.
A flat, oval-shaped notifying section 21 is fixed at four places with screws 20 through the intermediary 9. The movable portion 18 is formed of a synthetic resin. One end of the movable portion 18 is integrally formed with a cylindrical float 22 which floats on an oil surface and moves up and down in accordance with the amount of floating oil. The fulcrum is provided rotatably.

Further, in the notifying unit 21, a lead switch 25 which is opposed to the magnet 23 in the full position and is closed, and a signal is input when the read switch 25 is closed, and an output is output only for 5 seconds. A printed board 27 having a connection terminal including a microcomputer 26, and a buzzer body 2 which receives an output from the microcomputer 26 and issues an alarm sound "Pi, Pi, ..." for 5 seconds.
8 and a button battery 30 which is a power source for operating these electric components and which is covered with a lid 29 which is easy to remove, are stacked and compactly stored.

The notifying section 21 itself has a concave storage section 31 facing the magnet 23 and in contact with the fuel oil, and a printed board 27.
The buzzer body 28 and the inner holding portion 32 holding the button battery 30 are formed of a synthetic resin of a non-magnetic material to which the magnet 23 does not stick, while the cover body 33 exposed to the outside of the refueling tank 1 is Except for the lid 29, it is made of a strong metallic material.

At a position facing the buzzer body 28 of the holding portion 32, a φ3 sound emission hole 35 for emitting a buzzer sound is formed at the center through an acoustic space 34 having a small volume. Further, at the portion of the outermost cover body 33 facing the buzzer body 28, three φ3 cover holes 36 for sound emission are formed, and the cover hole 36 is directly covered with fuel oil. -Body 2
8 is not opposed to the sound emission hole 35 via the sound emission gap 37 so as to prevent the fuel oil from entering the fuel tank 8. The straight line connecting the cover holes 36 is an inverted triangle, and one cover hole 36 is disposed at the lowest position of the sound emission gap 37.

Further, the size of the cover hole 36 is optimally φ1 to φ3 which is large enough to emit a buzzer sound satisfactorily and is large enough to prevent the penetration of the fuel oil by the surface tension of the fuel oil. That is, when the diameter is smaller than φ1, the surface tension is generated surely, but the buzzer sound is muffled and cannot be heard clearly. On the contrary, when the diameter is larger than φ3, the surface tension of the fuel oil is not generated. Is adopted.

The full-amount notifying device 16 is mounted so as to notify the full amount when the oil level display by the oil amount meter 13 reaches the uppermost full position. Reference numeral 38 denotes a supply pipe such as a hose pump for replenishing fuel.

Next, the operation of this embodiment will be described. When the fuel in the refueling tank 1 is depleted, refueling is performed by first pulling the operation button 12 to open the refueling port 2 with one touch, and then inserting the supply pipe 38 into the refueling port 2 to replenish the fuel. Then, when the oil amount in the oil tank 1 reaches 75% of the internal capacity, the oil level display by the oil meter 13 is started, that is, the oil level in the oil tank 1 is displayed on the display window 14 as it is. This allows the user to know the current amount of oil.

Further replenishment proceeds, and the oil meter 13 shown in FIGS.
Is reached, the movable portion 18 rotates in accordance with the amount of oil, and the magnet 23 faces the lead switch 25,
When the lead switch 25 is closed, the full-amount informing device 16 emits an alarm sound "Pi, Pi, ..." for 5 seconds to notify the user that the battery is full. It is only necessary to stop supply immediately upon hearing this.

[0020] Accordingly, the provision of the two full indications of the oil level gauge 13 which appeals to the sight and the fullness notification device 16 which appeals to the auditory sense allows the user to know the full state without fail, especially in dark places and noise. Even when replenishing in intense places, it is possible to know the full amount by utilizing the advantages of each display and notification means, and there is no problem such as fuel overflowing in any state and soiling the floor, so it is always used with peace of mind It can be used and is easily used by visually impaired or hearing impaired persons.

On the other hand, both the oil level meter 13 and the full-amount notifying device 16 display the empty amount state due to the configuration thereof. Even if 1 is stored, the user can easily know the empty amount state, and can be shared by the full amount notification device 16 without providing any special empty amount notification, which is extremely convenient.

Also, since the sound emission hole 35 for emitting the alarm sound of the fuser body 28 to the outside and the cover hole 36 of the cover body 33 are not opposed to each other, the refueling tank 1 at the time of fuel supply is provided. Even if the fuel oil reaches the full-amount notification device 16 through the outer wall and flows inward from the cover hole 36, the fuel oil is prevented from reaching the buzzer body 28 via the direct sound emission hole 35.
The buzzer body 28 can be prevented from malfunctioning due to fuel oil, and the cover hole 36 has an inverted triangular straight line connecting each cover hole 36 when the fuel tank 1 is standing upright. 36 is provided at the lowermost part of the sound emission gap 37, so that even if fuel oil flows inward, the cover hole 3 at the lowermost part is formed.
6 is discharged to the outside satisfactorily, remains and remains in the full amount notification device 1
6. There is no fear of causing the malfunction of No. 6.

Further, if the cover hole 36 is made large enough to generate the surface tension of the fuel oil, the intrusion of the fuel oil can be reliably prevented, and the cover oil 36 can always be used with confidence.

In this case, the alarm sound is given by the buzzer body 28
Although the buzzer sound is described as "P ...", it may be an alarm playing a melody, and the number of the cover holes 36 is three in this case, but is not limited to this number.

[0025]

In short, the present invention relates to a full-amount notifying device for notifying when the amount of fuel supplied to a refueling tank becomes full, wherein the full-amount notifying device is located inside an opening opening in the refueling tank. A movable portion formed of a float and a magnet protruding toward the outside, and a notifying portion attached to the outside so as to close the opening, and a lead switch, a buzzer body, and a lead switch are provided in the notifying portion. A printed board, a button battery, etc. are accommodated, and a sound emitting hole is provided in front of the buzzer body through an acoustic space, and a cover body in front of the sound emitting hole is not opposed to the sound emitting hole. Since the cover hole is provided, the warning sound can be heard clearly without muffled sound, the full amount can be easily recognized even in a distant place, and the failure due to the intrusion of fuel oil can be prevented. If the cover hole is large enough to generate the surface tension of the fuel oil, it is possible to prevent the fuel oil from entering the buzzer body with an extremely simple structure, and it is also necessary to restrict the arrangement of the cover hole. No, it can always be used with peace of mind.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a fuel tank provided with an embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing the fuel supply port opened state.

FIG. 3 is an explanatory diagram showing a display state on the oil meter.

FIG. 4 is an explanatory diagram showing a notification state in the full amount notification device in the same state as in FIG. 3;

FIG. 5 is an electric circuit diagram of the fullness notifying device.

FIG. 6 is a sectional view of the main part.

FIG. 7 is a front view of the main part.

FIG. 8 is an enlarged sectional view of the main part.

FIG. 9 is an enlarged front view of the main part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refueling tank 16 Fullness notification device 17 Opening 18 Movable part 21 Notification part 22 Float 23 Magnet 25 Reed switch 27 Printed board 28 Buzzer body 30 Button battery 33 Cover body 35 Sound release hole 36 Cover hole 37 Sound emission gap

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F23K 5/14 505

Claims (4)

(57) [Claims] 1. A full-amount notifying device for notifying when the amount of fuel supplied to a refueling tank becomes full, wherein the full-amount notifying device includes a fuel tank that projects inward from an opening portion opened to the refueling tank. A movable portion comprising a magnet and a magnet, and a notifying portion attached to the outside so as to close the opening, wherein the notifying portion includes a lead switch, a buzzer, a printed board, and a button battery. And a sound emission hole is provided in front of the buzzer body through an acoustic space, and a cover hole is provided in the cover body in front of the sound emission hole so as not to face the sound emission hole. A full-amount notification device for refueling tanks. 2. The cover hole is in an oil tank standing state.
2. The full-fuel notification device for a refueling tank according to claim 1, wherein the device is provided at least at the lowest position of the sound emission gap. 3. The cover hole is in an oil tank standing state.
2. The fuel tank full capacity notification device according to claim 1, wherein a straight line connecting the cover holes is provided in an inverted triangle. 4. A full-amount notifying device for notifying when the amount of fuel supplied to a refueling tank becomes full, wherein the full-amount notifying device has a flow amount protruding inward from an opening portion opened to the refueling tank. A movable portion comprising a magnet and a magnet, and a notifying portion attached to the outside so as to close the opening, wherein the notifying portion includes a lead switch, a buzzer, a printed board, and a button battery. And a sound emission hole is provided in front of the buzzer body via an acoustic space, and a cover hole in front of the sound emission hole is provided with a size large enough to generate surface tension of fuel oil. A full-amount notification device for refueling tanks.