JP2565486Y2 - Fuel tank device for combustion equipment - 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 device for a burning appliance such as an oil stove, and more particularly to a device for detachably mounting a cartridge tank on a fixed tank portion of a burning appliance body.

[0002]

2. Description of the Related Art At present, oil stoves are equipped with a cartridge tank which is detachably mounted on a fixed tank portion of a stove body as a standard equipment. The cartridge tank has a cylindrical filler port, and a cap with a valve is attached to the filler port except when necessary, such as when refueling. The valve cap has a valve that opens in conjunction with mounting the cartridge tank on the stove body. With this valve, kerosene is supplied from inside the cartridge tank to the fixed tank portion of the stove body when the cartridge tank is mounted on the stove body, and kerosene leaks from inside the cartridge tank when the cartridge tank is removed from the stove body. Is prevented. When replenishing kerosene in such a cartridge tank type oil stove, first remove the cartridge tank from the fixed tank part of the stove body, then remove the cap with a valve from the filler port of this cartridge tank, Refill the cartridge tank from the section. Next, after a cap with a valve is attached to the filler port, the cartridge tank is attached to the stove body.

The above-mentioned valved cap is inserted into an oil receiving port provided in a fixed tank portion and is immersed in kerosene. However, at the time of refueling or the like, the valved cap wetted with kerosene for attachment and detachment is used. Kerosene was uncomfortable about her hands, because she had to grab her hands directly. In other words, the hands smell and become dirty with kerosene, and there is the trouble of washing the hands. On the other hand, there has been a petroleum stove conventionally provided with an auxiliary cap made of rubber or the like detachable on the outer peripheral side of the valved cap so that the valved cap can be indirectly gripped. However, since the auxiliary cap is not integrally attached to the cartridge tank and must be attached to and detached from the valve cap each time the cartridge tank is attached to and detached from the stove body, it is easily lost, and after use, The operability is poor because it requires extra work such as returning to the storage section provided in the stove body or the like.

[0004]

[Problems to be Solved by the Invention] As described above, in the conventional cartridge tank type oil stove, when attaching and detaching the valve cap, it was necessary to directly grasp the valve cap wet with kerosene by hand. There was a problem of giving discomfort. On the other hand, even when the auxiliary cap which can be attached to and detached from the cap with valve is attached, there is a risk that the auxiliary cap may be lost, and the operation for attaching and detaching the cap is required, which is inconvenient.

On the other hand, Japanese Utility Model Laid-Open No. 55-150242
In the official gazette, there is a cap with a valve (cover
An elastic protective cover made of synthetic rubber or the like that covers the cover
Oil stoves are described. Elastic material
The protection tube is a fixed cylinder frame fitted to the finger hook of the cap with valve.
And a bellows-shaped flexible covering cylinder frame. So
And the cartridge tank in the stove body (device body)
When the is attached, the lower end of the flexible casing
Section (oil receiving tank) to make it flexible
Is shrunk, and the valved cap protruding from the flexible
Only into the fixed tank, and the flexible casing
Do not soak. Meanwhile, the cartridge tank from the stove body
When the is removed, the flexible cover cylinder frame extends to cover the cap with valve.
In a state Therefore, protection made of elastic material in this state
By grasping the valve cap through the cylinder,
The cap with valve can be attached and detached without soiling with oil.

However, the cartridge tag described in the above publication is
In the link, the protective cylinder that covers the cap with valve
And a part of it is made bellows
By attaching and detaching the cartridge tank to and from the stove body
The protection cylinder is made to expand and contract with
The grip feeling when grasping with hand is bad and slippery,
There is a problem that the cap with valve is difficult to turn and the workability is poor.
Was.

[0007] The present invention is intended to solve such problems, when attaching and detaching the Benzuke cap for such refueling, the fuel tank system of a combustion instrument kerosene was prevented stick in hand, the valve Operability for attaching and detaching caps
For the purpose of Rukoto to above.

[0008]

In order to achieve the above object, a fuel tank device for a combustion device according to the present invention has a fixed tank portion provided on a combustion device body and an oil receiving portion provided on the fixed tank portion. An opening, a cartridge tank removably attached to a fixed tank portion of the combustion appliance body, a refueling port provided in the cartridge tank, and an oil removably attached to the refilling port for the fixed tank portion. A valve-attached cap inserted into the receiving port, a cover tube which is vertically movably mounted on the outer peripheral side of the valve-attached cap, and covers the valve-side outer peripheral portion of the valve-attachable cap so that the valve-side outer peripheral portion can be exposed; Detent means for rotating freely with the attached cap,
A spring for urging the cover in a direction in which the cap with a valve is covered, and stopper means for locking the cover in a covered state, wherein the cover is a first cover; Of the envelope
A second cover tube fitted on the outer peripheral side,
The cap with valve is
Gripping the outer peripheral side of the second cover cylinder which is
It is formed with a ridge .

[0009]

In the fuel tank device for a combustion apparatus according to the present invention, when the cartridge tank is mounted on the fixed tank section of the combustion apparatus main body, the first cover tube and the second cover tube are engaged with the upper surface of the fixed tank section. The two cover cylinders move and contract with respect to the cap with the valve against the bias of the spring, exposing the valve-side outer peripheral portion of the cap with the valve, and the refueling port is inserted into the oil receiving port of the fixed tank. On the other hand, both sheaths stop outside the oil receiving port. When the combustion device is used, fuel oil is supplied from the inside of the cartridge tank to the fixed tank portion through the oil supply port, the cap with a valve, and the oil receiving port. Although the cap gets wet with oil, the two outer cylinders outside the oil receiving port do not get wet with oil. Also, for example, at the time of refueling, first remove the cartridge tank from the fixed tank portion of the combustion appliance main body, and in conjunction with this, the two cylinders are attached to the valved cap by the biasing of the spring. elongation while moving in the opposite direction, is engaging with the stopper means, valved cap wet with oil by both covering the cylinder is covered from the outer circumferential side. Then, the user stops the rotation of the cap with the valve on both caps that are not wet with oil.
Of the second cover cylinder located on the outer peripheral side.
Remove the cap with valve from the filler port by grasping the grip on the outer peripheral side, supply oil into the cartridge tank from the filler port, attach the cap with valve to the filler port by grasping the cover again, and replace the cartridge with the cartridge. Attach the tank to the fixed tank section of the combustion appliance body.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fuel tank device for an oil stove of the present invention will be described with reference to the drawings. 1 and 2, reference numeral 1 denotes kerosene which is a liquid fuel. Reference numeral 11 denotes a fixed tank portion provided on a stove main body (not shown). An oil receiving port 12 having a cylindrical shape and concaved downward is formed on the upper surface of the fixed tank portion 11. An opening 13 is formed in the lower surface of the oil receiving port 12, and the opening 13 is covered by a filter 14 from above. Further, a perforated plate 15 is provided on the filter 14, and a pin 16 is protruded upward from the center of the perforated plate 15. An annular convex portion 17 is formed on the upper surface of the fixed tank portion 11 so as to surround the oil receiving port 12 and bulge upward. Reference numeral 21 denotes a cartridge tank which is removably mounted on the fixed tank section 11. On the lower surface of the cartridge tank 21, a cylindrical oil supply port 22 is provided so as to project downward. The refueling port 22 is formed of a base fixed by caulking to the periphery of an opening 23 formed on the lower surface of the cartridge tank 21. A screw portion 24 is formed on the peripheral surface of the fuel filler portion 22. 26 is a metal valve cap, as shown in FIG.
26 is formed in a substantially cylindrical shape, is removably attached to the oil supply port 22, and the oil receiving port of the fixed tank section 11.
The lower part is inserted into 12. Attachment to the filler port 22 is performed by screwing a slightly reduced diameter threaded portion 27 formed on the lower peripheral surface of the valved cap 26 to the outer peripheral side of the threaded portion 24 of the filler port 22. A valve seat opening 28 is formed in the center of the lower surface of the cap with valve 26, and a cage-like valve housing portion 29 is provided above the valve seat opening 28. A valve 30 for opening and closing the valve seat opening 28 is slidably fitted in the valve housing portion 29, and the valve 30 is always moved downward by a spring 31, that is, in a direction to close the valve seat opening 28. Being energized.

An upper portion of the cap 26 with a valve is formed with a projecting portion 32 which extends horizontally from the upper surface to the outer periphery and extends downward from the upper surface thereof. An accommodating portion 33 is formed.
The overhang portion 32 has a plurality of long holes 34 at least at positions sandwiching the center thereof. These slots 34
Has a slit shape in the vertical direction,
May be removed to the upper surface, but not to the lower surface. 41 is a cylindrical first envelope, and the first envelope 41 is
The length and the diameter of the valve cap 26 are almost entirely stored in the storage part 33 of the cap 26, and the diameter is larger than the diameter of the oil receiving port 12 of the fixed tank part 11. An outward flange 42 protruding toward the outer periphery is formed at the upper end in the axial direction of the first cover cylinder 41. On the other hand, the lower end of the first cover cylinder 41 has an inward flange 43 protruding inward.
Are formed. Reference numeral 46 denotes a cylindrical second envelope, which is larger in diameter than the first envelope 41, but is still in the storage portion 33 of the valved cap 26. Almost the entire length and diameter are stored. Further, a tapered inward flange portion 47 protruding toward the inner periphery is formed at the upper end in the axial direction of the second cover cylinder 46. On the other hand, an inward flange portion 48 also protruding toward the inner periphery is formed at a lower end portion of the second cover cylinder 46, and a knurled or uneven grip portion 49 suitable for slip prevention is entirely provided. It is formed so as to be continuous with the periphery and project toward the outer periphery. The diameter of the grip 49 is substantially the same as the diameter of the annular projection 17 of the fixed tank 11. The second cover tube 46 is coaxially fitted to the outer peripheral side of the first cover tube 41, whereby the cover tubes 41 and 46 can expand and contract as a whole. When the outward flange portion 42 of the cover cylinder 41 of the second abutment contacts the inward flange portions 47 and 48 of the second cover tube 46,
1, 46 are kept from each other. Further, a plurality of tapered claw portions 50 are formed at the upper end of the outer peripheral surface of the second cover cylinder 46 so as to protrude outward so as to correspond to the long holes 34.
These claw portions 50 are respectively slidably engaged with the elongated holes 34 of the cap with valve 26 in the vertical direction, whereby the second cover cylinder 46 is It is locked in the vertical direction and locked so as not to rotate in the circumferential direction. In this way, the long hole 34
The side wall portion 34A and the claw portion 50 constitute the detent means 51, and the lower end wall portion 34B of the elongated hole 34 and the claw portion 50 constitute the stopper means 52. Further, at the innermost peripheral portion of the storage portion 33 of the cap with valve 26 in which the cover tubes 41 and 46 are stored,
A coil spring 53 as a covering operation means is housed, and the upper end of the spring 53
32, and the lower end of the first cover cylinder 41
Abuts on the inward flange portion 43 of the main body. The spring 53 generates a force to expand, thereby giving the first cover cylinder 41 a force to move the first cover cylinder 41 to the side opposite to the cartridge tank 21, that is, to the lower side. In this way, the two covered cylinders 41, 46
Is mounted on the outer peripheral side of the valved cap 26 so as to be movable in the vertical direction and not to be separated from each other. When stored in the storage section 33 of the cap 26, the lower portion of the cap with valve 26, that is, the outer peripheral portion on the valve side, is exposed, and the two covered cylinders 41 and 46 are exposed.
Moves downward with respect to the cap with valve 26 and extends,
The valve-side outer peripheral portion of the valved cap 26 is covered with the two cover tubes 41 and 46.

Next, the operation of the above configuration will be described. As shown in FIG. 1, when the cartridge tank 21 is placed and mounted on the fixed tank portion 11 of the stove main body, the two covered cylinders 41 and 46 become the annular convex portion 17 of the fixed tank portion 11 and the projecting portion of the cap 26 with the valve. Under the compressive action of the upper surface of the valve 32, the valve contracts against the urging force of the spring 53 and rises relatively to the valved cap 26, and is stored in the storage portion 33 of the valved cap 26. . That is, the cartridge tank
When the lower portion 21 is lowered, after the lower end of the first cover tube 41 hits the annular convex portion 17 from above, the first cover tube 41 cannot be lowered. Rise relative to. Further, the upper end of the first envelope 41 is
After hitting the flange 47 on the top of the cover tube 46 from below, or
After the lower end of the second cover tube 46 hits the annular convex portion 17 from above, the second cover tube 46 also rises integrally with the first cover tube 41 with respect to the valve cap 26. The two cover cylinders 41 and 46 are raised until the upper end of the second cover cylinder 46 hits the upper part of the overhang 32 with respect to the valve cap 26, and the storage part 33 of the valve cap 26 is held.
Is stored inside. In this state, the lower portion of the cap with valve 26 is exposed and inserted into the oil receiving port 12 of the fixed tank portion 11. On the other hand, the two covered cylinders 41 and 46 stop outside the oil receiving port 12. At the same time, when the cartridge tank 21 is mounted on the fixed tank section 11, the oil receiving port 12 of the fixed tank section 11
By being pushed by the pin 16 inside the valve cap 26, the valve 30 in the valve cap 26 rises against the urging force of the spring 31, and the valve cap 26
The valve seat opening 28 is opened. When the oil stove is used, the fixed tank section 11 is opened from the inside of the cartridge tank 21 through the oil supply port 22, the open valve seat port 28, the plate 15 on the oil receiving port 12 side, the filter 14, and the communication port 13. Kerosene 1 is supplied inside. The oil level in the fixed tank 11 does not become higher than a certain level due to the air pressure applied thereto. With the cartridge tank 21 mounted on the fixed tank portion 11, the lower part of the cap with valve 26 inserted into the oil receiving port 12 of the fixed tank section 11 is immersed in the kerosene 1 and gets wet. 12
The outer casings 41 and 46 located outside the upper part are not immersed in the kerosene 1 and do not get wet. For example, at the time of refueling, as shown in FIG. 2, the cartridge tank 21 is first lifted in the direction shown by the arrow, and the cartridge tank 21 is removed from the fixed tank portion 11 of the stove body. In conjunction with this, the spring
Due to the urging force of 53, the cover cylinders 41 and 46 move down and extend with respect to the cap 41 with the valve, contrary to the mounting of the cartridge tank 21. That is, the first envelope 41 is the second envelope
The first cover cylinder is attached to the flange 48 below the second cover cylinder 46 with respect to the first cover cylinder 46.
41, until the outward flange 42 contacts from above, and the second cover cylinder 46 is moved until the claw 50 contacts the lower end wall 34B of the elongated hole 34 with respect to the valved cap 26 from above. Descend. In this way, when the cover tubes 41 and 46 descend and extend with respect to the valve cap 41, the lower portions of the valve cap 26 wet with kerosene are surrounded and covered by the cover tubes 41 and 46 from the outer peripheral side. Note that the cartridge tank 21 is
The valve 30 is lowered by the urging force of the spring 31, and the valve seat 28 is closed. Therefore, the kerosene 1 does not leak from the cartridge tank 21 via the valved cap 26.
Next, after turning the cartridge tank 21 upside down, the user grips the grip portion 49 of the second cover cylinder 46 and rotates the second cover cylinder 46. As described above, when the second cover cylinder 46 is turned, the claw portion 50 and the side wall portion 34A of the long hole 34 are engaged with each other.
The valved cap 26 also rotates integrally, and the valved cap 26 can be removed from the fuel supply port 22. Then, after the kerosene 1 is replenished into the cartridge tank 21 through the opened oil supply port portion 22, the grip portion 49 of the second cover cylinder 46 is again gripped, and the cap 26 with the valve is turned. The cap with valve 26 is attached to the fuel filler port 22. In addition, cartridge tank 21
Is turned upside down, and then mounted on the fixed tank 11 of the stove body.

According to the configuration of the embodiment, without touching the valved cap 26 wet with the kerosene 1, the cover cylinder 46 that covers the valved cap 26 and is not wet with kerosene is grasped.
Since the cap with valve 26 can be attached and detached, kerosene does not get on the hands at that time. Therefore, work such as refueling can be performed comfortably without soiling the hands. Also, unlike the case where the auxiliary cap can be attached to and detached from the valve cap, the cover cylinders 41 and 46 are parts integrated with the valve cap 26, so that the cover cylinders 41 and 46 are lost. There is no such fear. Further, the attachment / detachment of the cartridge tank 21 to / from the fixed tank portion 11 of the stove main body is performed when the cover tubes 41 and 46
Since the exposure and the covering operation of the valved cap 26 are linked with each other, the operability is remarkably improved as compared with the case where the auxiliary cap is attached to and detached from the valved cap without any trouble. In addition, especially in the above-described embodiment, the cartridge tank
The structure that links the cover cylinders 41 and 46 to the attachment and detachment of 21 is simple,
Cost increase can be suppressed.

Further, the first and second cover tubes 41 and 46 are connected to the first and second cover tubes 41 and 46, respectively.
Because it was made to be able to expand and contract by being divided into two by the cover tube 46 of
The envelopes 41, 46 can be solid and therefore the envelopes 41, 46
The feeling of grip when holding 46 is also improved. Along with this,
The outer periphery of the second envelope 46 on the outer periphery of the envelope 41
By forming a grip portion 49 in the form of a
The cap 26 with valve is easy to turn, and the cap 26 with valve
The workability of attaching and detaching is improved.

The present invention is not limited to the above embodiment, and various modifications are possible. For example, in the above-described embodiment, the envelopes 41 and 46 are divided into two to make them expandable and contractible. However, the envelopes may be integrally formed as a whole. However, if the cover cylinders 41 and 46 are divided into two parts so as to be expandable and contractible as in the above-described embodiment, the stroke from the exposure of the valved cap 26 to the covering can be made larger than the size of the storage part 33. This is advantageous for miniaturization. Further, the grip portion 49 provided on the cover tube 46 is not limited to the position and the shape as shown in the drawing, and may be formed in an appropriate shape in an appropriate position of the cover tube 46 so as to be easily grasped by hand and turned. Instead of providing the grip portion, the user may grip an appropriate position on the outer peripheral surface of the envelope.

[0016]

According to the present invention, in a fuel tank device for a combustion appliance in which a cartridge tank is detachably mounted on a fixed tank portion of a combustion appliance main body, an outer periphery of a cap with a valve attached to a filler port of the cartridge tank. When the cartridge is attached to the fixed tank part, the envelope stops outside the oil receiving port,
Only the exposed cap with valve is inserted into the oil receiving port of the fixed tank, and when the cartridge tank is removed from the fixed tank, the cover is configured to cover the cap with valve. The valve cap can be attached and detached without gripping the valve cap wet with oil, and the cap with valve can be attached and detached, making it possible to work comfortably without soiling the hands. Unlike the conventional one that is removable, there is no danger of losing the envelope, and because the envelope is linked to the attachment / detachment of the cartridge tank, it does not take much effort,
The operability is remarkably improved as compared with the case where the auxiliary cap is attached to and detached from the valved cap. Moreover, the envelope is the first
A second cover fitted on the outer peripheral side of the first cover tube;
It is made up of a cylinder to make it vertically expandable and contractable.
On the outer peripheral side of the second cover cylinder, which is prevented from rotating
Because the part is formed, the cover can be made solid.
Gripping feeling when gripping the envelope
Workability of attaching and detaching the cap with valve in combination with being on the side
Is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a fuel tank device for a combustion apparatus according to an embodiment of the present invention, in which a cartridge tank is mounted on a fixed tank portion.

FIG. 2 is a sectional view showing a state where a cartridge tank is removed from the fixed tank unit.

FIG. 3 is an exploded perspective view of the same.

[Explanation of symbols]

11 Fixed tank part 12 Oil receiving port 21 Cartridge tank 22 Oil filler part 26 Cap with valve 41 First cover tube 46 Second cover tube 49 Grip part 51 Detent means 52 Stopper means 53 Coil spring (spring)

Claims (1)

(57) [Scope of request for utility model registration] 1. A fixed tank portion provided in a combustion appliance main body, an oil receiving port provided in the fixed tank portion, a cartridge tank detachably mounted on the fixed tank portion of the combustion appliance main body, and A filler port provided in the cartridge tank, a cap with a valve detachably attached to the filler port and inserted into an oil receiving port of the fixed tank part, and a vertically movable outer peripheral side of the cap with the valve. A cover cylinder that is assembled and covers the valve-side outer peripheral portion of the valve-cap so as to be exposed, a detent means that allows the cover cylinder to rotate integrally with the valve-cap, and a cap with a valve that covers the cover cylinder. A spring for urging in a direction to be covered, and stopper means for locking the cover tube in a cover state, wherein the cover tube includes a first cover;
And a second cover fitted around the outer periphery of the first cover.
It is made up of an envelope so that it can expand and contract vertically.
Stopped against the cap with valve by the locking means
A fuel tank device for a combustion appliance, wherein a grip portion is formed on an outer peripheral side of the second cover cylinder .