JP2001124327A - Cartridge type oil supply tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cartridge type oil supply tank which does not shake nor tilt through reaction to full opening of the base part, i.e., a cover. SOLUTION: The cartridge type oil supply tank comprises an oil inlet 2 opening to the upper surface of a tank body 1, a base part 7 opening/closing freely about a shaft 23 and urged by a resilient member 25 in the opening direction, an oil inlet cap 6 having an oil supply valve 8 disposed at the base part 7, and a stop means 26 for bringing the oil inlet 2 and the oil inlet cap 6 into tight contact and keeping or releasing the tight contact state wherein the base part 7 is turned about the shaft 23 by means of the resilient member 25 when the stop means 26 is released. Since a damper means 35 for limiting the turning speed of the base part 7 is provided, the oil supply tank 1 does not shake nor tilt.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge type oil supply tank used for oil burning appliances such as an oil stove and an oil fan heater.

[0002]

2. Description of the Related Art Conventionally, in this type, as disclosed in Japanese Utility Model Publication No. 5-12607, for example, a shaft provided with a filler cap provided at one end of the base is supported by a fulcrum. The base is urged in the direction that always opens the oil supply port by providing a torsion coil spring on the shaft, and the locking means is provided at the other end of the base, so that one-touch lubrication without soiling the hands The mouth could be opened and closed.

[0003]

In the prior art, however, the fuel filler cap is heavy because it has a fuel filler valve device and a packing. Since the center of gravity is at a high position on the fuel filler side, when the fuel filler is opened, the refueling tank shakes with the recoil when the rotating base is fully opened by the torsion coil spring, giving the user an uneasy feeling. In particular, in a small-capacity, long and narrow oil supply tank, there is a risk that the oil supply tank may fall over due to a reaction.

In addition, the rotation of the base portion scatters the kerosene adhering to the inside of the filler cap, which may stain the floor and the hands of the user.

The problem can be solved by replacing the torsion coil spring with one having a weak force. However, if the urging force is weakened, the locking state of the base may be incomplete. It was not possible to secure the safety by lifting the base.

[0006]

In order to solve the above-mentioned drawbacks, the present invention focuses on this point, and in particular, its structure is such that an oil supply port opened on the upper surface of the tank body, an openable and closable shaft around a shaft, and an elastic member The base is urged in the opening direction by the above, a filler cap provided on the base and having a filler valve device, and the filler and the filler cap are brought into close contact with each other, and the close contact state is maintained and released. Locking means, wherein the base is rotated by the elastic member about the axis by releasing the locking means, and damper means for suppressing the rotation speed of the base is provided. Things.

According to a second aspect of the present invention, the damper means is a rotary damper.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS When the locking means 26 is released, the base 7 rotates in the opening direction about the shaft 23 by the elastic member 25. At this time, the rotation speed of the base 7 is suppressed by the damper means 35. Since the base 7 rotates slowly, the refueling tank 1 does not wobble or fall due to the reaction when the heavy base 7 having the fuel filler cap 6 having the fuel supply valve device 8 is fully opened. Further, kerosene attached to the inside of the filler cap 6 does not scatter.

Further, since the urging force of the elastic member 25 does not have to be weakened, the base 7 is rotated in the opening direction by the urging force of the elastic member 25 when the locking means 26 is incompletely locked. Therefore, it is possible to inform that the fuel filler 2 and the fuel filler cap 6 are not in close contact with each other. Prevention can also ensure safety.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a cartridge type refueling tank according to the present invention. Reference numeral 1 denotes a vertically long cartridge type tank main body used for oil burning appliances such as oil stoves and oil fan heaters.

After a plate-like fixing plate 3 is bonded to the wall surface on the side where the fuel supply port 2 is provided and to the base of the fuel supply port 2 through an adhesive means such as an adhesive, a screw is formed to form a substantially trumpet-shaped retainer. Ring 4
Is screwed into the refueling port 2 and pressed by the pressing portion 5 at the tip thereof to fix the fixing plate 3, and at this time, the rear end of the retaining ring 4 is
The height is lower than the tip.

Reference numeral 6 denotes an inverted-recessed oil filler cap protruding from substantially the center of a base 7 supported by the fixing plate 3. The outer diameter of the oil filler cap 6 is larger than the outer diameters of the oil filler 2 and the retaining ring 4. And its height is lower than the filler opening 2.

Reference numeral 8 denotes an oil supply valve device for supplying kerosene at a head.
It is attached by caulking in the center of the filler cap 6,
It comprises an on-off valve 9, a mandrel 10, a spring 11 for always elastically mounting the on-off valve 9, and a valve case 12 having a communication port (not shown).

Reference numeral 13 denotes an oil-resistant, cylindrical packing attached to the inner surface of the filler cap 6, and tapered portions 14 and 15 extending outwardly are provided at the upper and lower ends, and further between the tapered portions 14 and 15. A coil-shaped spring 19 is interposed between a metal guide tube 16 for guiding the expansion and contraction of the packing 13 and a synthetic resin packing support tube 18 for preventing the packing 13 from coming off by engagement with a plurality of dowels 17. Provided with intervening.

Both tapered portions 14.1 of the packing 13
At the inner end of the upper end 5, there is provided an upper tongue 20 which is in close contact with the inner surface of the fuel filler cap 6, and a lower tongue 21 which is in close contact with the upper end of the fuel filler 2 when the lid is closed. In order to increase the pressure receiving area while preventing entanglement without protruding too much,
The base is formed by cutting inward in a letter shape.

At a substantially central portion of the packing 13, an inwardly extending expansion-contraction absorbing portion 22 for absorbing expansion and contraction of the packing 13 is provided.
Is formed, and the depth of this protrusion is 2 times the thickness of the packing 13.
Within the range, the contraction force is suppressed, and the sealing properties of the upper and lower tongue portions 20 and 21 are improved.

The base 7 has a curving support 24 for supporting the shaft 23 at one end, and a curling support 24 for supporting the shaft 23 at the end of the fixing plate 4. A support (not shown) is provided to enable the base 7 to rotate, and the shaft 23 is fixed to the base 7.

The shaft 23 is provided with an elastic member 25 composed of a torsion coil spring acting to lift the base 7 in the direction opposite to the tank body 1.
The fuel filler cap 6 covers the fuel filler port 2 with the fulcrum as a fulcrum, and can be raised and lowered so as to be in close contact with the packing 13.

Reference numeral 26 denotes locking means for locking and releasing the close contact between the filler port 2 and the filler cap 6.
And a locking lot 28 fixed to a pair of support pieces 27 cut and raised from the base, and an L-shaped hook fitting 29 provided at a position facing the locking lot 28 on the base 7 side. .

The hook fitting 29 is rotatably mounted by pivotally supporting an L-shaped intermediate portion with a support shaft 31 inserted through a pair of shaft support pieces 30 cut and raised from the base 7. The lower part is provided with a locking part 32 formed by a key-shaped groove for locking to the locking lot 28, while the upper surface is a flat plate-shaped base part 7.
A push button portion 34 is formed on the operation shaft 33 that is opened at the bottom of the shaft 31. Further, the support shaft 31 always pulls the locking portion 32 side toward the locking side with the locking lot 28, and the opposite push button portion 34 A spring (not shown) for applying a force in a direction to push the side toward the operation window 33 of the base 7 is provided.

When the base 7 is pushed toward the oil filler port 2, the lower end of the hook fitting 29 comes into contact with the locking lot 28.
By rotating slightly to the side opposite to 8, the lower end of the hook fitting 29 goes over the locking lot 28 and the locking portion 32 is locked to the locking lot 28. In this state, the operation window 3 is locked.
By pushing the push button portion 34 exposed on the side 3 against the spring into the tank body 1 side, the hook fitting 29 is rotated to release the locking between the locking portion 31 and the locking lot 28. It is.

Further, the push button portion 34 is exposed in the operation window 33 on the surface of the base 7 in a slightly recessed state while being lowered one step.
By not being flush with the surface of the base 7, the push button 34 is inadvertently pushed due to the surface colliding with an object, the locking is released, the oil filler port 2 is opened, and kerosene is prevented from spilling. Things.

Numeral 35 is a damper means consisting of a rotary damper screwed to a support piece 36 fixed to the fixing plate 3 for causing an internal viscous fluid to pass through a small hole to generate a damping action. Shaft 23 with damper gear 37
, And the rotational speed of the base 7 is suppressed by the damping action of the damper means 35.

Next, when refueling the fuel tank 1 with kerosene, the fuel tank 1 is placed on the floor with the filler cap 6 side up, and in this state, the push button 34 exposed to the operation window 33 on the surface of the base 8 is pointed with the index finger. If pressed by one, the hook fitting 29 rotates against the spring with the support shaft 31 as a fulcrum, the push button portion 34 rotates downward, and the locking portion 32 rotates slightly upward.
The locking portion 32 is released from locking with the locking lot 28, and the base 7 is automatically erected on the shaft 23 as a fulcrum by the repulsive action of the elastic member 25.

At this time, the base 7 rotates with the shaft 23 as a fulcrum due to the repulsive action of the elastic member 25, and the fan-shaped gear 38 fixed to the shaft 23 also rotates coaxially to rotate the damper gear 37, and the damper means 35 Since the rotation speed of the base 7 is suppressed by the speed damping action of the above, the base 7 rotates slowly to open the oil filler cap 6, and in this state, kerosene can be refueled with a hose pump or the like.

Since the base 7 rotates gently in this manner, the rotational force of the base 7 does not wobble the fuel tank 1 and gives the user a sense of security.
Kerosene adhering to the inside does not scatter and there is no danger of soiling the floor and the hands of the user.

On the other hand, after refueling, the base 7 is manually
When the latching portion 32 is pushed into the fuel filler port 2, the lower end of the hook fitting 29 comes into contact with the locking lot 28 and rotates slightly against the spring force of the spring to get over the locking lot 28, so that the locking portion 32 is moved. The base portion 7 is locked to the fixing plate 3 with the sound "snap", and the filler port 2 and the filler cap 6 are brought into close contact with each other.

At this time, when the locking portion 32 is not locked to the locking lot 28, the elastic member 25 is fixed as in the conventional case.
The incomplete locking state is released by the repulsive action of, and the base 7 is lifted upward to rotate the shaft 23 about the fulcrum.
The user can recognize that the filler cap 6 is not closed, and can ensure safety.

[0029]

As described above, according to the present invention, since the base rotates slowly, the fuel tank is not shaken or fall down due to the recoil when the base is completely opened, so that the user can feel reassured. In addition, kerosene adhering to the inside of the filler cap does not scatter and there is no danger of soiling the floor or the hands of the user, and the incomplete locking state is released by the rebound of the elastic member. It is possible to secure safety.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of an oil supply tank to which an embodiment of the present invention is attached in a state where a lid is opened.

FIG. 2 is a 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 sectional view of the filler cap in the closed state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tank main body 2 Oil filler 3 Fixing plate 6 Oil filler cap 7 Base 8 Oil filler device 23 Shaft 25 Elastic member 26 Locking means 35 Damper means

Continued on the front page F term (reference) 3E082 AA01 BB10 DD01 FF05 3E084 AA05 AA12 AA22 AB04 BA03 CA01 CB02 DB14 DC01 DC08 FA06 GA06 GB06 GB19 GB26 HA03 HB04 HC06 HD01 KA16 KB01 LA14 LB02 LC01 LD03 LD18 3K068 BB13 CB13 CB13 CB13

Claims (2)

[Claims] An oil supply opening formed on an upper surface of a tank body;
A base that is openable and closable about a shaft and is urged in an opening direction by an elastic member, a filler cap provided on the base and having a filler valve device, and the filler port and the filler cap in close contact with each other. Locking means for holding and releasing the close contact state, wherein the release of the locking means causes the base to be rotated about the shaft by the elastic member. A cartridge type refueling tank provided with damper means for suppressing a rotation speed. 2. The cartridge type refueling tank according to claim 1, wherein said damper means is a rotary damper.