JP3789054B2 - Oil tank device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an oil tank device for supplying oil to a liquid fuel combustor.
[0002]
[Prior art]
A conventional oil tank device of this type will be described with reference to FIG.
[0003]
FIG. 2 is a cross-sectional view of the main part showing a state in which the oil tank for the fan heater, that is, the cartridge tank, is normally set on the oil tray in the fan heater main body.
[0004]
In FIG. 2, reference numeral 1 denotes an oil tray fixedly provided in the main body of the fan heater, and 2 denotes a boss holder attached to the upper surface of the oil tray 1.
[0005]
Reference numeral 3 denotes a projecting pin provided upward in the center of the bottom of the boss holder 2, and reference numeral 4 denotes an outlet through which kerosene discharged into the boss holder 2 flows out into the oil tray 1.
[0006]
5 is a cartridge tank main body, 6 is an oil supply port of the cartridge tank main body, 7 is a screw type oil supply port cap attached to the oil supply port 6, and the tip thereof protrudes from a thrust pin 3 on the boss holder 2 side. It is of a known structure provided with a discharge valve that opens.
[0007]
In the state where the cartridge tank body 5 is installed in the boss holder 2 of the oil pan 1 as shown in FIG. 2, the kerosene discharge port of the oil filler cap 7 is pushed up by the push pin 3 and the kerosene flows out. The kerosene spill stops when inside. After that, when kerosene is consumed and the oil level drops, the discharge port appears on the oil level, so the outflow of kerosene from the discharge port is resumed, and the oil level rises again and the discharge port is submerged in the oil. The outflow stops. The oil level when the discharge port is submerged and the outflow of kerosene stops is the constant oil level of the oil tray 1.
[0008]
Reference numeral 8 denotes an oil shortage sensor attached to the oil receiving tray 1, which detects and detects the necessity of refueling when the oil level is below a predetermined value.
[0009]
In this configuration, when refueling the empty cartridge tank body 5, the cartridge tank body 5 is removed from the boss holder 2 and placed upside down, and the filler cap 7 is rotated. The cartridge tank body 5 must be removed from the fuel filler opening 6.
[0010]
[Problems to be solved by the invention]
In this conventional example, there has been a problem that fingers are soiled with kerosene when the oil filler cap 7 to which kerosene is attached must be removed with bare hands.
[0011]
In order to solve this problem, we try to realize a practical oil tank device that achieves the intended purpose without changing the dimensional structure of the oil pan and the cartridge tank body that have been used in the past. To do.
[0012]
[Means for Solving the Problems]
The present invention has been made in order to solve the above-described problems. An oil leakage is formed by forming a cartridge tank main body, a fuel supply port provided in the cartridge tank main body, and a stepped portion that abuts against an upper end portion of the fuel supply port. An oil filler cap that holds the oil filler seal for prevention and has a thin cylindrical portion formed on the upper end side along with the formation of the stepped portion and screwed into the oil filler port, and a cartridge tank of the oil filler cap A spring seat formed in a flange-like shape at one end on the main body side, a discharge port established at the tip of the small-diameter cylindrical portion on the other end side of the oil filler cap, and a narrow opening to open and close this discharge port A movable core valve provided on the inner side of the diameter cylindrical portion, a cylindrical lifting guide tube attached from the outer periphery of the spring seat portion of the filler cap to the discharge port portion, and the lifting guide A flange formed by projecting the end corresponding to the discharge port side of the cylinder toward the outside, and a continuous bulge in a straight line along the axial direction of the lifting guide cylinder on the outside of a part of the wall surface of the lifting guide cylinder The guide rib is formed by engaging with the guide rib at a fitting portion between the guide rib formed in this manner, the knob handle fitted between the spring seat of the lift guide cylinder and the flange, and the lift guide cylinder of the knob handle. While the lifting guide cylinder is allowed to move in the axial direction, it is installed between the notch formed to prevent sliding rotation with respect to the lifting guide cylinder and the knob handle and the spring seat, and the knob handle is always attached to the lifting guide cylinder. The oil tank device was configured with a coil spring pressed against the flange side.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The present invention has the above-described configuration, and the oil filler cap can be easily removed from the oil filler port without soiling fingers with kerosene.
[0014]
In addition, since a detaching tool consisting of a spring seat, lifting guide cylinder, knob handle, coil spring, etc. must be provided as an inclusion between the oil tray and the cartridge tank body, it is inevitable to push the cartridge tank body upward. However, a step portion is formed on the portion of the filler cap corresponding to the tip portion of the filler port so that the oil filler packing for preventing oil leakage is held there, and the tip of the step portion is discharged. Formed on the outlet side is a small-diameter cylindrical portion having a length corresponding to the amount of pushing up of the cartridge tank main body as described above, and when the cartridge tank main body is loaded in the oil receiving tray, The contact relationship is no different from the conventional case.
[0015]
As a result, the oil level in the oil pan is not changed, and the oil level sensor can be used as it is without any special modification even for the arrangement of parts other than the oil shortage sensor.
[0016]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to FIG.
[0017]
FIG. 1 is a cross-sectional view of an essential part of a fuel tank for a fan heater, that is, a cartridge tank body, which is stood up with an oil filler port facing upward for fueling. In FIG. 1, the cartridge tank main body and the oil filler port attached to the cartridge tank main body are exactly the same as those shown in the description of the conventional example.
[0018]
In FIG. 1, reference numeral 9 denotes an oil filler cap that is detachably screwed into the oil filler 6 of the cartridge tank body 5.
[0019]
The fuel filler cap 9 is attached by screwing into the fuel filler 6 as shown. Reference numeral 10 denotes a step portion formed at a portion corresponding to the upper end of the oil filler port 6, which forms a contact portion with the upper end of the oil filler port 6, and forms a holding portion for an oil filler port packing described later. Reference numeral 11 denotes a small-diameter cylindrical portion provided through the formation of the stepped portion 10, and 12 denotes a discharge port opened at the upper end thereof.
[0020]
13 is a core house attached to the inside of the fuel filler cap 9, 14 is a movable core valve provided in the core house 13 to open and close the discharge port 12, and 15 is a discharge with the movable core valve 14. An O-ring packing 16 that is provided between the outlet 12 and ensures sealing of the discharge port 12 is a core coil spring that presses the movable core valve 14 toward the discharge port 12.
[0021]
Reference numerals 17 and 17 denote core house outlets opened on the discharge port 12 side of the core house 13, which are openings through which kerosene in the cartridge tank main body 5 flows out, and 18 denotes an oil supply port 6 of the cartridge tank main body 5. An oil filler packing is provided between the oil filler cap 9 and the oil filler packing for ensuring the sealing between the two and preventing oil leakage.
[0022]
Reference numeral 19 denotes an attachment / detachment aid for the filler cap 9, which is provided so that the filler cap 9 can be attached to and detached from the filler port 6 without directly touching the filler cap 9 with fingers.
[0023]
The attachment / detachment aid 19 will be described in detail. Reference numeral 20 denotes a collar-shaped knob handle for placing a finger, and reference numeral 21 denotes a cylindrical lifting guide provided for attaching the knob handle 20 to the outside of the filler cap 9. A cylinder 22 is a flange that is formed at the upper end of the elevating guide cylinder 21 and prevents the knob handle 12 from falling off. Reference numeral 23 denotes a guide rib which is formed on the outside of a part of the wall surface of the elevating guide cylinder 21 in a vertical direction and continuously bulges linearly, while the knob handle 20 can be moved in the vertical direction with respect to the filler cap 9. This is to prevent slip rotation. A notch 24 is provided on the knob handle 20 and engages with the guide rib 23. Although not shown in detail in FIG. 1, the guide ribs 23 and the notches 24 are formed at four positions at equal intervals.
[0024]
Reference numeral 25 denotes a spring receiving seat formed in a brim shape protruding from the bottom of the filler cap 9, and 26 is provided between the spring receiving seat 25 and the knob handle 20 so that the knob handle 20 is connected to the filler cap 9. The coil spring is pressed against the discharge port 12 side.
[0025]
In such a configuration, the oil filler cap 9 in which the attachment / detachment assisting tool 19 of FIG. 1 according to the present invention is attached to the cartridge tank body 5 of the conventional structure shown in FIG. When loaded in the tray and the boss holder, the cartridge tank body 5 is pushed upward by the intervention of the spring receiving seat 25, the coil spring 26 and the knob handle 20, but the oil filler cap 9 has a length corresponding to the pushed-up dimension. The diameter cylinder portion 11 is provided, and the contact relationship between the discharge port 12 and the boss holder 2 side push pin 3 is realized without any change from the conventional one, and the same constant oil surface height as the conventional one is realized. .
[0026]
Therefore, accessories such as the oil shortage sensor can be used as they are without any modification.
[0027]
And even if kerosene has adhered to the vicinity of the discharge port 12 of the cap 9, the kerosene is not directly touched with fingers by gripping the knob handle 20, and the oil filler cap 9 can be attached with peace of mind. Can be removed.
[0028]
【The invention's effect】
As described above, according to the present invention, it is possible to easily remove the filler cap from the filler port of the cartridge tank body without soiling fingers with kerosene.
[0029]
In addition, since a detaching tool comprising a spring receiving seat, a lifting guide cylinder, a knob handle, a coil spring, and the like is provided as an inclusion between the oil receiving tray and the cartridge tank body, it is inevitable to push up the cartridge tank body. However, a step is formed in the portion of the filler cap corresponding to the tip of the filler port so that the oil filler packing for preventing oil leakage is held there, and the outlet side of the tip of the step is In addition, the above-mentioned cartridge tank main body is formed with a small-diameter cylindrical portion having a length corresponding to the pushed-up portion, and the contact relationship between the oil supply port cap side discharge port and the boss holder side push pin when the cartridge tank main body is loaded is Since no change was made, it was possible to prevent the oil level in the oil pan from changing. Now it can be used as it is without adding any special modifications also for the component.
[Brief description of the drawings]
FIG. 1 is a sectional view of an essential part of an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a main part of a conventional example.
[Explanation of symbols]
5: Cartridge tank body, 6: Filling port, 9: Filling port cap, 10: Stepped portion, 11: Small diameter cylindrical portion, 12: Discharge port, 20: Pick handle, 21: Lifting guide tube, 22: Flange, 23 : Guide rib, 24: notch, 25: spring seat, 26: coil spring.

Claims (1)

A cartridge tank main body (5), an oil supply port (6) provided in the cartridge tank main body, and a step portion (10) that abuts against the upper end of the oil supply port to form an oil supply prevention packing (18 ) And a step portion is formed, and a thin cylinder portion (11) is formed on the upper end side and screwed into the oil filler port (9) and attached to the oil filler cap. A spring seat (25) formed to project from one end on the cartridge tank main body side, and a discharge port (12) provided at the tip of the small-diameter cylindrical portion on the other end side of the oil filler cap; In order to open and close the discharge port, a movable core valve (14) provided on the inner side of the small-diameter cylindrical portion, and the spring seat portion on the outer periphery of the oil filler cap are attached to the discharge port portion. Circle Shaped lift guide cylinder (21), a flange (22) formed by projecting an end corresponding to the discharge port side of the lift guide cylinder toward the outside, and a part of the wall surface of the lift guide cylinder A guide rib (23) formed by bulging continuously along the axial direction of the lifting guide cylinder on the outside, and a knob handle (fitting between the spring seat and the flange of the lifting guide cylinder) 20) and the handle of the knob handle with the lift guide cylinder are engaged with the guide ribs to allow the knob handle to move in the axial direction of the lift guide cylinder, but allow sliding rotation with respect to the lift guide cylinder. The notch (24) formed for the purpose of not being installed, and installed between the knob handle and the spring seat to push the knob handle to the flange side of the lifting guide cylinder at all times. Oil tank apparatus characterized by being constituted out with a coil spring (26) to attach.

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