JP2002098326A - Filler opening cap for cartridge tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable mounting of a filler opening cap without soiling hands and prevent the cover from being mounted in an incomplete state by improving the filler opening cap mounted on and demounted from the filler opening of a cartridge tank. SOLUTION: The filler opening cap 3 removably mounted on the filler opening 2 of a cartridge tank 1 is provided with an on-off valve 6. A step part 8 is formed between the filler opening cap and a base part inner cylinder 3a by decreasing the diameter of the vicinity of a valve seat 6a of the on-off valve 6 and a packing 9 fronting on the end part of the filler opening 2 is mounted on the horizontal part of the step part 8. Further, the filler opening cap 3 is provided with a base part outer cylinder 3b, pressing a horizontal part coupled to the base part inner cylinder 3a, against the end part of the filler opening 2 through the packing 9 in a state to be independent from the base part inner cylinder 3a to form a double cylinder part. A mounting demounting mechanism 11 located between the filler opening cap 3 and the cartridge tank 1 and an operation part 7 for the filler opening cap 3 are formed at the base part outer cylinder 3b and oil adhered to the vicinity of the valve seat 6a of the filler opening cap 3 is prevented from penetration to an operation part 7 of the base part outer cylinder 3b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a fuel filler cap for attaching and detaching a fuel filler cap of a cartridge tank without soiling a hand.

[0002]

2. Description of the Related Art As an oil tank of an oil combustor, an oil pan is provided at the bottom of the oil combustor instead of a large-capacity oil tank attached to the bottom of the appliance. Many have a cartridge tank which can be detached and carried. An oil filler cap with an open / close valve is attached to the oil filler port of the cartridge tank.On the other hand, a projection is provided on the oil pan to open and close the open / close valve formed on the oil filler lid. Replenishes the used amount of oil.

When the cartridge tank is emptied by the use of an oil combustor, the oil tank lid is removed from the oil tank of the cartridge tank where the oil is taken out from the frame of the oil combustor and the oil is stored in a poly tank or the like. Refuel using a siphon pump. And
The refilled cartridge tank is to be mounted on an oil stove with the fuel filler lid closed, and then used again.

[0004] Since it is the cartridge tank having a capacity of 4 to 5 liters that moves to the place where the oil is stored, it is very easy to handle, but the oil is attached to the refueling lid. In addition, the hands are stained with oil when the fuel filler cap is attached and detached during refueling. For this reason, refueling work is disliked as dirty work. Recently, an operation unit is provided at a position away from the opening / closing valve of the refueling lid, and the refueling lid is opened and closed by this operating part that is not contaminated with oil. I have. (No. 47-17392, No. 48-505)
(See No. 4)

[0005]

The oil adhering to the opening / closing valve, which is the tip of the refueling lid, easily spreads and is slightly contaminated on the operation unit slightly away.
As in the above-described conventional example, the operation portion formed on the refueling port lid is inferior in reliability unless it is considerably separated from the on-off valve. Also, if the diameter of the operation unit is increased so as to be far away, it becomes difficult to operate, and the problem of the storage location of the operation unit comes out.In the end, this structure is difficult to apply to all refueling lids, There is a high need for improvement.

[0006] On the other hand, the attachment / detachment mechanism of the fuel filler cap of this type of cartridge tank is of a screw-in type, and can be securely tightened when there is no danger of dirty hands.
If you worry about dirty hands, you can not tighten enough, and if you overturn to attach the cartridge tank to the oil combustor with insufficient tightening, the oil filler cap will come off and the oil inside will be flushed to the oil combustor at once. This may lead to an abnormal situation such as fire, and it is necessary to improve this detachable structure.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and enables the fuel filler cap to be operated without soiling the hands. The operating part is provided on the outer periphery of the fuel filler cap 3 in which the on-off valve 6 is provided. 7, the fuel supply port 2 of the cartridge tank 1 and the fuel supply port lid 3 are detachably attached by the attachment / detachment mechanism 11,
The cartridge tank 1 is overturned, and the oil supply lid 3 is mounted in the oil pan 4, and the projection 5 provided on the oil pan 4 faces the open / close valve 6 provided in the oil supply lid 3, and the projection 5 of the oil pan 4 In the cartridge tank that opens and closes the on-off valve 6 provided in the fuel filler cover 3 to supply the oil in the cartridge tank 1 to the oil receiving tray 4, the diameter of the valve seat 6 a of the on-off valve 6 of the fuel filler cover 3 is changed to the refueling of the cartridge tank 1. The stepped portion is formed so as to be thinner than the opening 2, and includes a tip near the valve seat 6 a of the fuel filler cover 3, a small-diameter portion in which the on-off valve 6 is provided, and a horizontal portion looking into the end of the fuel filler 2 of the cartridge tank 1. A packing 9 is attached to a horizontal portion of the step portion 8 of the fuel filler cap 3 so as to be viewed from an end of the fuel port 2, and a side portion of the fuel port 2 of the cartridge tank 1 from the horizontal portion of the step portion 8. The refueling lid 3 reaching the From the base inner cylinder 3a and a base outer cylinder 3b which presses a horizontal portion connected to the base inner cylinder 3a to the fuel supply opening 2 in conjunction with the base inner cylinder 3a while being independent of the base inner cylinder 3a. And an attachment / detachment mechanism 11 between the fuel filler lid 3 and the cartridge tank 1;
The operating portion 7 is formed on the base outer cylinder 3b, and the oil adhering to the vicinity of the valve seat 6a of the thinned refueling lid 3 is independent of the base outer cylinder 3b.
Is prevented from bleeding up to the operation unit 7.

[0008]

The oil filler cap 3 of the present invention has a small diameter in the vicinity of the valve seat 6a of the on-off valve 6, so that the area of the portion where oil always adheres is reduced. The amount of adhering oil has become very small. Even if oil oozes on the surface of the step portion 8, the base inner tube 3a continuing to the horizontal portion of the step portion 8 and the base outer tube 3b constituting the operation portion 7 are formed as a double tube. Base outer cylinder 3b cut off by a gap even if oil may spread to 3a
The oil does not permeate, and the hands are not contaminated with oil by using the base outer cylinder 3b as the operation unit 7 when the fuel filler lid 3 is attached or detached.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in the drawings. 1 is a cartridge tank which is mounted on an oil combustor and supplies fuel, 2 is a fuel supply port for supplying and discharging fuel to and from the cartridge tank 1, and 3 is a fuel supply port. A refueling port lid detachably provided on the refueling port 2 via a packing 9, 7 is an operation unit formed on the outer periphery of the refueling port lid 3, and 11 is an attaching / detaching mechanism formed with a screw between the refueling port lid 3 and the refueling port 2. is there. Reference numeral 4 denotes an oil pan for supplying fuel to the burner of the oil combustor, and reference numeral 14 denotes a receptacle attached to an upper opening of the oil pan 4, and the receptacle 14 has a projection 5 formed thereon.

Reference numeral 6 denotes an on-off valve provided in the fuel filler cover 3, and 6a denotes a valve seat of the on-off valve 6. The on-off valve 6 has a valve shaft 6b for closing the valve seat 6a and an end of the valve shaft 6b connected to the valve seat 6a. It has a valve spring 6c for pressing. Fill the cartridge tank 1 with the refueling lid 3
Is mounted on the receiving port 14 of the oil receiving pan 4 with the projection downward, the projection 5 pushes up the valve shaft 6b against the valve spring 6c, and the oil in the cartridge tank 1 flows into the oil receiving pan 4 via the receiving port 14. Provided for combustion. Then, when the oil level of the oil receiving tray 4 is lowered by use, air enters the cartridge tank 1 from the on-off valve 6, the oil flows out to the oil receiving tray 4, and the constant oil is kept in a state where the valve seat 6a is covered with the oil. Holding a plane.

When the cartridge tank 1 is emptied, the cartridge tank 1 is transported to a refueling place, the refueling port lid 3 is removed, and refueling is performed by a siphon pump or the like. The tip of the refueling port lid 3 is always located in the oil. Because
The hand is soiled when attaching / detaching the oil supply lid 3 wet with oil, which is very disliked. For this reason, the operation unit 7 for removal is formed so as to be largely separated from the opening / closing valve 6 of the refueling lid 3 so that even if oil spreads on the surface of the refueling lid 3, the oil does not reach the operating unit, and the hands are stained. However, in order to implement this proposal, a place for accommodating the large operation unit 7 is required, and it is hardly used in practice.

Further, if oil is attached to the operation part 7 formed on the fuel filler cap 3, the hand slips with oil when the removed fuel filler cap 3 is reattached, or a strong force cannot be exerted due to dirt. In some cases, the fuel filler cap 3 cannot be sufficiently tightened. In this case, the fuel filler cap 3 comes off when the cartridge tank 1 is to be mounted over the oil combustor, and a large amount of oil is applied to the oil combustor, causing a fire accident. It could get up and was very dangerous.

The present invention proposes a structure in which the oil cannot be prevented from adhering to the vicinity of the opening / closing valve 6 of the refueling port lid 3 so that even if the oil is diffused, the hands are not stained when the opening / closing operation is performed by the attaching / detaching mechanism 11. Reference numeral 8 denotes a step portion for making the diameter near the valve seat 6a of the refueling port lid 3 smaller than that of the refueling port 2 of the cartridge tank 1; And a horizontal portion looking into the refueling port 2.

When the cartridge tank 1 is mounted on an oil combustor and is in use, only the vicinity of the small-diameter valve seat 6a touches the oil, and when the cartridge tank 1 is removed, the valve seat whose diameter is reduced by the step 8 is used. Only a small amount of oil is attached near 6a. And when this little oil spreads,
It is necessary to travel along the surfaces of the small-diameter cylindrical body and the horizontal portion constituting the step portion 8.

Reference numeral 3a denotes a base inner cylinder which is continuous from the horizontal portion of the step portion 8 of the fuel filler lid 3, and 3b denotes a base located outside the base inner cylinder 3a so as to form a double cylinder with the base inner cylinder 3a. The outer cylinder 10 is a pressing spring located in the gap between the base inner cylinder 3a and the base outer cylinder 3b, and 3c is a stopper for preventing the base inner cylinder 3a from being pulled out. Locked between the cylinders 3b, the base inner cylinder 3a is in contact with the stopper 3c in the free state.

The operation unit 7 of the fuel filler cap 3 is a base outer cylinder 3b.
The attachment / detachment mechanism 11 is provided between the base outer cylinder 3 b and the fuel supply port 2. The packing 9 interposed between the fuel filler 2 and the fuel filler cap 3 is located between the horizontal portion of the step 8 and the end of the fuel filler 2, and the base outer cylinder 3 b is connected to the fuel filler 2. When mounted on the end, the horizontal portion of the step portion 8 comes into close contact with the end of the fuel filler port 2 via the packing 9,
Further, when the base outer cylinder 3b of the fuel filler cap 3 is fitted to the fuel filler 2 by the attachment / detachment mechanism 11 while compressing the pressing spring 10,
Oil does not leak from between the horizontal portion of the step portion 8 strongly pressed by the base outer cylinder 3b and the end of the oil filler port 2.

Accordingly, the base outer cylinder 3b constituting the operation section 7
And the base inner cylinder 3a continuous from the step portion 8 can be formed as a separate member via a gap, so that when oil adhering to the vicinity of the valve seat 6a diffuses to the fuel filler cover 3, the oil from the vicinity of the valve seat 6a of the fuel filler cover 3 is increased. The oil does not spread to the surface of the base inner cylinder 3a through the horizontal part of the step part 8 and to the base outer cylinder 3b having the operation part 7, so that even if the oil filler cap 3 is operated with bare hands, the hand is The fear of getting dirty is gone.

[0018]

As described above, according to the present invention, the area of the oil filler cap 3 which contacts the oil in the oil pan 4 is small, and
Since the base outer cylinder 3b and the oil-attached portion constituting the operation unit 7 are not continuous, oil bleeding does not propagate to the base outer cylinder 3b. It is no longer dirty, and anyone who has disliked refueling work can now be surely performed.

For this reason, in the prior art, when the cartridge tank 1 is overturned with insufficient tightening, carelessly taking care of the dirt on the hand and the cartridge tank 1 is overturned, the oil filler cover 3 comes off and a large amount of oil flows out. Although a trouble had occurred, it was not necessary to worry about dirt on the hand when attaching the fuel filler cap 3, so that the fuel filler cap 3 can be securely fixed to the fuel filler port 2 and the trouble that the fuel filler cap 3 comes off is reduced. It was done.

Further, according to the present invention, the outer diameter of the base outer cylinder 3b constituting the operation section 7 may be increased by the gap between the base inner cylinder 3a and the pressing spring 10, so that the outer shape of the base outer cylinder 3b is particularly large. No need to do. For this reason, the base outer cylinder 3
“b” has the same outer shape as that of the conventional art, and the shape of the oil pan 4 does not need to be largely changed in design, and can be easily applied to the existing cartridge tank 1 and oil pan 4.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part showing a use state of a cartridge tank according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a fuel filler cap showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge tank 2 Oil filler 3 Oil filler lid 3a Base inner cylinder 3b Base outer cylinder 4 Oil pan 5 Projection 6 Open / close valve 6a Valve seat 7 Operating part 8 Step part 9 Packing 10 Push spring 11 Detachment mechanism

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E082 AA01 BB10 3E084 AA12 AA22 AB03 BA02 CA01 CB02 CC01 DA01 DB13 DB17 DC01 FA09 FC07 FC09 GA08 GB12 HA03 HB03 HD03 KB01 LB02 LB07 LD30 3K068 AA11 CB03 CB13

Claims (1)

[Claims] An operation section is formed on the outer periphery of a fuel filler cap on which an opening / closing valve is provided, and a fuel filler port and a fuel filler cap of a cartridge tank are removably mounted by a mounting mechanism. Is turned over, and the oil filler lid 3 is mounted in the oil tray 4, and the projection 5 provided on the oil tray 4 faces the open / close valve 6 provided in the oil filler lid 3, and the projection 5 of the oil tray 4 is connected to the oil filler lid 3. In the cartridge tank that opens and closes the on-off valve 6 and supplies the oil in the cartridge tank 1 to the oil pan 4, the diameter near the valve seat 6 a of the on-off valve 6 of the oil supply lid 3 is set to be larger than that of the oil supply port 2 of the cartridge tank 1. A step portion 8 is formed by forming a thin portion, a tip near the valve seat 6a of the refueling port lid 3, a small-diameter portion in which the on-off valve 6 is provided, and a horizontal portion looking at the end of the refueling port 2 of the cartridge tank 1.
A packing 9 is attached to a horizontal portion of the step 8 of the fuel filler cover 3 so as to look at an end of the fuel filler 2, and a fuel filler cover extending from the horizontal portion of the step 8 to the side of the fuel filler 2 of the cartridge tank 1. 3, a base inner cylinder 3a continuous from the horizontal portion of the step portion 8;
A double cylinder portion is formed by a base outer cylinder 3b that presses a horizontal portion connected to the base inner cylinder 3a to the fuel filler port 2 in conjunction with the base inner cylinder 3a while being independent of the base inner cylinder 3a. An attachment / detachment mechanism 11 between the cartridge tank 1 and the operation unit 7 of the fuel filler cap 3 is formed in the base outer cylinder 3b, and the oil adhering near the valve seat 6a of the thinned fuel filler cap 3 becomes independent of the base outer cylinder 3b. An oil filler lid for a cartridge tank, which does not bleed to the operation unit 7.