JP3818803B2 - Cartridge type oil tank - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cartridge-type oil supply tank used in an oil combustion appliance such as an oil stove or an oil fan heater.
[0002]
[Prior art]
Conventionally, in this kind of thing, as disclosed in, for example, Japanese Utility Model Publication No. 5-12607, the shaft provided with the oil filler cap provided at the base portion on one end side of the base portion can be raised and lowered freely, In addition, by providing a torsion coil spring on the shaft, the base is always urged in the direction of opening the oil filler, and a locking means is provided on the other end of the base so that the oil filler can be opened and closed without touching the hand. It was something like that.
[0003]
[Problems to be solved by the invention]
By the way, in this conventional one, the oil filler cap has a weight because it has an oil filler valve device and packing, and the center of gravity of the oil tank is at a high position on the oil filler side in the empty state where there is no kerosene in the oil tank. Therefore, when opening the oil filler port, the oil tank is shaken by the reaction when the base rotated by the torsion coil spring is fully opened, giving the user anxiety. There was a risk that the oil tank would fall over due to reaction.
[0004]
In addition, the rotation of the base part may cause kerosene adhering to the inside of the filler cap to scatter and contaminate the floor and the user's hand.
[0005]
Here, this problem can be solved by replacing the torsion coil spring with a weak force. However, if the biasing force is weakened, the locking state of the base may become incomplete. At this time, the base is lifted by the torsion coil spring. Therefore, safety could not be ensured.
[0006]
[Means for Solving the Problems]
The present invention pays attention to this point and solves the above-mentioned drawbacks. In particular, the structure is configured to be openable and closable around a longitudinally long tank body upper surface and a shaft as a fulcrum, and urged in the opening direction by an elastic member. The base, the oil filler cap provided on the outside of the base, the oil supply valve device provided in the oil filler cap, the oil filler and the oil filler cap, and the close contact state. A rotary damper that suppresses the rotational speed of the base portion, wherein the base portion is rotated by the elastic member with the shaft as a fulcrum by releasing the locking means. It is provided.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
When the locking means 26 is released, the base 7 is rotated in the opening direction about the shaft 23 by the elastic member 25. At this time, the rotational speed of the base 7 is suppressed by the damper means 35, so that the base 7 rotates slowly. Therefore, the refueling tank 1 does not wobble or fall due to a reaction when the heavy base portion 7 having the refueling port cap 6 having the refueling valve device 8 is fully opened. Kerosene adhering to the inside does not scatter.
[0009]
Further, since it is not necessary to weaken the biasing force of the elastic member 25, the base 7 is rotated in the opening direction by the biasing force of the elastic member 25 when the locking means 26 is locked incompletely. It is possible to inform that the mouth 2 and the filler cap 6 are not in close contact with each other and prevent the danger of spilling a large amount of kerosene by inverting the filler tank 1 in an incompletely locked state. Safety can also be ensured.
[0010]
【Example】
Next, a cartridge type oil tank according to the present invention will be described with reference to an embodiment shown in the drawings.
1 is a cartridge-like tank body which is vertically long and is used for a well-known oil combustion appliance such as an oil stove or an oil fan heater, and has an oil supply port 2 formed with a screw formed on one wall surface.
[0011]
After the plate-like fixing plate 3 is bonded to the wall surface on the side where the oil supply port 2 is provided and to the base of the oil supply port 2 through an adhesive means such as an adhesive, a screw is formed to form a substantially trumpet-shaped holding ring 4. The fixing plate 3 is fixed by being screwed into the oil filler port 2 and pressed by the pressing portion 5 at the tip thereof. At this time, the rear end of the presser ring 4 is made lower than the tip end of the oil filler port 2.
[0012]
Reference numeral 6 denotes a reverse concave oil filler cap that protrudes outward from substantially the center of the base 7 supported by the fixing plate 3. The outer diameter of the oil filler cap 6 is larger than the outer diameter of the oil filler 2 and the retaining ring 4. And its height is lower than that of the fuel filler opening 2.
[0013]
8 is an oil supply valve device for supplying kerosene with a head, and is attached by being crimped to the center of the oil supply cap 6, and the on-off valve 9, the mandrel 10, and the spring 11 that always projects the on-off valve 9 and the communication port (not shown) And a valve case 12 having a
[0014]
13 is an oil-resistant cylindrical packing attached to the inner surface of the filler cap 6, and tapered portions 14, 15 extending outward are provided at the upper and lower ends, and further, the packing 13 is provided between the tapered portions 14, 15. A coil-shaped spring 19 is interposed between a metal guide tube 16 that guides expansion and contraction of the metal and a synthetic resin packing support tube 18 that prevents the packing 13 from being pulled out by locking with a plurality of dowels 17. I have.
[0015]
At the inner ends of the tapered portions 14 and 15 of the packing 13, an upper tongue portion 20 that is in close contact with the inner surface of the oil filler cap 6 and a lower tongue portion 21 that is in close contact with the upper end of the oil filler port 2 when closed is provided. The upper tongue portion 20 is formed by notching the root portion inwardly in order to widen the pressure receiving area while preventing the tip portion from protruding so much and preventing the entrainment.
[0016]
In addition, an expansion / contraction absorbing portion 22 that protrudes inwardly to absorb expansion / contraction of the packing 13 is formed in the substantially central portion of the packing 13, and the depth of the protrusion is within twice the wall thickness of the packing 13, so that the contraction force And the sealing properties of the upper and lower tongue portions 20, 21 are good.
[0017]
The base portion 7 has a peripheral edge bent downward, and one is provided with a curling support portion 24 for supporting the shaft 23, and a curling support portion (for supporting the shaft 23 at the end portion of the corresponding fixing plate 4 ( (Not shown) is provided so that the base 7 can be rotated, and the shaft 23 is fixed to the base 7.
[0018]
Further, the shaft 23 is provided with an elastic member 25 made of a torsion coil spring which acts to lift the base 7 in the opposite direction of the tank body 1, and the base 7 as a whole is provided with the oil filler cap 6 with the shaft 23 as a fulcrum. And can be raised and lowered so as to be in close contact with the packing 13.
[0019]
Reference numeral 26 denotes a locking means for locking and unlocking the fuel supply port 2 and the fuel supply cap 6 in close contact with each other, and a locking lot 28 fixed to a pair of support pieces 27 cut and raised from the fixing plate 3. And an L-shaped hook fitting 29 provided at a position facing the locking lot 28 on the base 7 side.
[0020]
The hook metal fitting 29 is a support shaft 31 that is inserted into a pair of shaft support pieces 30 cut and raised from the base portion 7, and is pivotally attached by supporting an L-shaped intermediate portion. A locking portion 32 formed by a key-shaped groove for locking to the locking lot 28 is provided, and a push button portion 34 exposed to the operation window 33 opened in the base portion 7 is formed on the other upper surface on the other upper surface, Further, the spring 31 that always pulls the locking portion 32 side to the locking side with the locking lot 28 on the support shaft 31 and pushes the reverse push button portion 34 side toward the operation window 33 side of the base portion 7. (Not shown).
[0021]
When the base portion 7 is pushed toward the fuel filler opening 2 side, the lower end of the hook metal fitting 29 comes into contact with the locking lot 28, and further pushing it causes the hook metal fitting 29 to rotate slightly opposite to the locking lot 28 against the spring. As a result, the lower end of the hook fitting 29 gets over the locking lot 28 and the locking portion 32 is locked to the locking lot 28, and the push button portion 34 exposed to the operation window 33 in this state is removed. By pushing against the spring against the tank body 1 side, the hook metal fitting 29 is rotated and the locking between the locking portion 31 and the locking lot 28 is released.
[0022]
Further, the push button part 34 is exposed to the operation window 33 on the surface of the base part 7 in a slightly lowered state, and is not flush with the surface of the base part 7, so that the surface hits an object inadvertently. The push button part 34 is pushed, the lock is released, and the fuel filler opening 2 is opened to prevent spilling of kerosene.
[0023]
Reference numeral 35 denotes a damper means comprising a rotary damper screwed to a support piece 36 fixed to the fixed plate 3, which causes an internal viscous fluid to pass through a small hole to produce a damping action, and its damper gear 37. Is engaged with a fan-shaped gear 38 fixed to the shaft 23, and the rotational speed of the base portion 7 is suppressed by the damping action of the damper means 35.
[0024]
Next, when supplying kerosene to the fuel tank 1, place it on the floor with the filler cap 6 facing up, and in this state, push the push button 34 exposed to the operation window 33 on the surface of the base 8 with one index finger. When pressed, the hook metal 29 is rotated against the spring 31 with the support shaft 31 as a fulcrum, the push button portion 34 is rotated downward and the locking portion 32 is rotated slightly upward, so that the locking portion 32 is locked to the locking lot 28. The base 7 is automatically raised with the shaft 23 as a fulcrum by the repulsive action of the elastic member 25.
[0025]
At this time, the base portion 7 is rotated about the shaft 23 by the repulsive action of the elastic member 25, and the fan gear 38 fixed to the shaft 23 is also rotated coaxially to rotate the damper gear 37, thereby reducing the speed of the damper means 35. Since the rotational speed of the base portion 7 is suppressed by the action, the base portion 7 is gently rotated to open the fuel filler cap 6, and in this state, kerosene may be supplied with a hose pump or the like.
[0026]
Since the base 7 rotates slowly in this way, the oil tank 1 does not wobble due to the rotational force of the base 7, giving the user a sense of security, and the kerosene adhering to the inside of the filler cap 6 may be scattered. In addition, there is no risk of soiling the floor and the user's hands.
[0027]
On the other hand, after refueling, if the base 7 is pushed by hand against the elastic member 25 to the refueling port 2 side, the lower end of the hook metal fitting 29 comes into contact with the locking lot 28 and slightly rotates against the spring force of the spring. By overcoming the stop lot 28, the locking portion 32 is locked to the locking lot 28, and the base 7 is locked to the fixing plate 3 together with the sound of “click”, and the fuel filler port 2 and the fuel filler cap 6 are in close contact with each other. It becomes a state.
[0028]
At this time, when the locking portion 32 is not locked to the locking lot 28, the incomplete locking state is released by the repulsive action of the elastic member 25 as in the conventional case, and the base portion 7 is lifted upward to lift the shaft 23. Therefore, the user can recognize that the fuel filler cap 6 is not closed, and can ensure safety.
[0029]
【The invention's effect】
As described above, according to the present invention, since the base portion rotates slowly, the oil supply tank does not wobble or fall due to the reaction when the base portion is fully opened, and gives the user a sense of security. The kerosene adhering to the inside of the mouth cap does not scatter and there is no risk of soiling the floor or the user's hand, and the incomplete locking state can be released by the repulsive action of the elastic member, and safety is also achieved It can be secured.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main part in an opened state of an oil tank with an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a main part in the closed state.
FIG. 3 is an enlarged side view of a main part in the opened state.
FIG. 4 is a cross-sectional view of the filler cap in the closed state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Tank main body 2 Oil supply port 3 Fixing plate 6 Oil supply port cap 7 Base 8 Oil supply valve device 23 Shaft 25 Elastic member 26 Locking means 35 Damper means

Claims (1)

An oil filler opening opened on the upper surface of the vertically long tank body, a base that can be opened and closed with a shaft as a fulcrum and biased in the opening direction by an elastic member , an oil filler cap provided on the outside of the base, and the oil filler An oil supply valve device provided in the cap; and an engagement means for bringing the oil supply port and the oil supply cap into close contact with each other and maintaining and releasing the contact state. A cartridge-type oil supply tank provided with a rotary damper that suppresses the rotational speed of the base portion, which is rotated by the elastic member about a shaft.

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