JP5986460B2 - Cartridge oil tank - Google Patents

Description

  The present invention relates to a cartridge-type oil supply tank used for an oil combustion appliance such as an oil stove or an oil fan heater.

Conventionally, in this type, as shown in Fig. 6, the lubrication port cap can be raised and lowered with the shaft as a fulcrum, so that the lubrication port can be opened and closed with one touch without getting your hands dirty. Thus, the hook fitting 101 on the lubrication port cap side is engaged with the locking lot 102 on the lubrication port side, so that the lubrication port and the lubrication cap are brought into close contact with each other.
The locking lot 102 is slidably supported by a pair of support pieces 104 cut and raised by a plate-like fixing plate 103 fixed on the wall surface on the side where the oil supply port is provided and fixed to the base of the oil supply port. One of the supporting pieces 104 and an E-ring 105 fixed approximately at the center of the locking lot 102 is provided with a spring 106 through which the locking lot 102 is inserted. An operation button 107 for sliding the locking lot 102 against the spring 106 is provided.
The hook metal fitting 101 rotatably attached to a support shaft 110 inserted through the shaft support piece 109 cut and raised is provided at a position facing the locking lot 102 on the lid side base portion 108 of the oil supply port.
Further, the front end portion of the locking lot 102 is simply formed in a columnar shape, and the operation button 107 is pulled when refueling, so that the locking lot 102 slides and the front end portion of the locking lot 102 is detached from the hook metal fitting 101. The base 108 is released and the refueling operation can be performed from the oil filling port. (For example, see Patent Document 1)

Japanese Patent No. 3054050

By the way, in this conventional one, it is convenient to be able to open the lubrication port simply by pulling the operation button, so it is convenient to operate easily, but it can be opened even if the child operates mischief, so the child If the open tank falls over due to mischief, fuel will spill on the floor, which may cause a fire in the worst case.
In recent years, there has been a social moment to seek a safer structure so that such an accident does not occur, and it has been necessary to simplify the operation and increase safety.

This invention pays attention to this point, and in order to solve the above-mentioned drawbacks, in particular, a base portion that can be raised and lowered with a shaft as a fulcrum in an oil inlet of a tank body that is placed on an oil receiving tray and supplies fuel oil. And a hook provided on the base side, and a locking lot that is slidably supported by a pair of support pieces provided on a fixing plate on the oil inlet side. In what is held by engagement with the engagement portion of the metal fitting , a groove is provided in the engagement lot facing the engagement portion of the hook metal fitting in a direction substantially perpendicular to the axial direction of the engagement lot. at the same time the engaging portion at the groove for locking in the substrate direction in the locking slot, engages in the axial direction of the substrate direction substantially perpendicular she said locking lot, when opening the base, one of the base portion Press the fixing plate side with your hand to engage the engaging part from the groove part of the locking lot After removing, open the base by sliding the locking lot with the other hand, is provided with a double locking means used right and left hands simultaneously.

  According to the present invention, the double lock structure using the right hand and the left hand at the same time is excellent in safety that cannot be easily opened even if the child tries to slide the operation button. In addition, since the user only adds an operation of pressing the base portion from above, the user can open the lid relatively easily.

The principal part perspective view of the open state of the tank main body which attached | subjected this Example of this invention. Sectional drawing of the principal part of the state set in the instrument. The front view of the state which the latching lot and the hook metal fitting engaged. The front view of the state which the latching lot and hook metal fitting which show another Example engage. The front view of the oil combustion appliance which notched the same part. The front view of the state which the latching lot and hook metal fitting which show a prior art example engaged.

Next, a cartridge type oil tank according to the present invention will be described with reference to an embodiment shown in the drawings.
Reference numeral 1 denotes a cartridge-type tank body that is vertically long and is used for a well-known oil combustion appliance 2 such as an oil stove or an oil fan heater, and has an oil filling port 3 formed with a screw formed on one wall surface. .
A plate-shaped fixing plate 4 is bonded to the wall surface on the side where the oil supply port 3 is provided and to the base of the oil supply port 3 through an adhesive means such as an adhesive, and then a screw is formed to form a substantially trumpet-shaped holding ring 5. Is screwed into the oil filler port 3 and pressed by the pressing portion 6 at the tip thereof to fix the fixing plate 4. At this time, the rear end of the press ring 5 is made lower than the tip of the oil filler port 3.

Reference numeral 7 denotes a reverse-concave lubrication port cap projecting from substantially the center of the base 8 supported by the fixed plate 4, and the outer diameter of the lubrication port cap 7 is larger than the outer diameters of the lubrication port 3 and the retaining ring 5. And the height is made lower than the oil inlet 3.
9 is an oil supply device for supplying fuel with a drop, and is attached by crimping in the center of the oil filler cap 7, and has an on-off valve 10, a mandrel 11, a spring 12 that always projects the on-off valve 10, and a communication port 13 And a valve case 14.

15 is an oil-resistant cylindrical packing attached to the inner surface of the oil filler cap 7, and taper portions 16, 17 extending outward are provided at the upper and lower ends, and the taper portions 16, 17 are further provided. A metal guide tube 18 that guides the expansion and contraction of the packing 15 and a synthetic resin packing support tube 20 that prevents the packing 15 from coming off by locking with a plurality of dowels 19 are arranged in a coil shape. A spring 21 is interposed.
At the inner ends of the taper portions 16 and 17 of the packing 15, there are an upper tongue portion 22 that is in close contact with the inner surface of the oil filler cap 7 and a lower tongue portion 23 that is in close contact with the upper end of the oil inlet 3 when closed. The upper tongue portion 22 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.

In addition, an expansion / contraction absorbing portion 24 that protrudes inwardly to absorb expansion / contraction of the packing 15 is formed at a substantially central portion of the packing 15, and the depth of the protrusion is within twice the wall thickness of the packing 15, so that the contraction force The sealing properties of the upper and lower tongue portions 22 and 23 are good.
The base portion 8 is bent at its peripheral edge downward, and one is provided with a curling support portion 26 for supporting the shaft 25, and a curling shape for supporting the shaft 25 at the end portion of the corresponding fixing plate 4. The support part 27 is provided, and the inner diameter of one of the support parts 26 and 27 is larger than the other inner diameters to provide play.

The shaft 25 is provided with an elastic member 28 that acts to lift the base 8 in the opposite direction of the tank body 1, and the base 8 as a whole covers the oil inlet 3 with the oil cap cap 7 centering on the shaft 25. 15 can be raised and lowered freely.
Reference numeral 29 denotes a locking lot that is slidably supported by a pair of support pieces 30 and support pieces 31 cut and raised from the fixed plate 4, and an E-ring fixed to a substantially center between the support pieces 30 and the locking lot 29. 32 is provided with an operating button 34 for sliding the locking lot 29 against the spring 33 at one end. Yes.

Further, a front end portion 36 having a diameter smaller than that of the central portion 35 of the latching lot 29 is provided in front of the latching lot 29 to form a stepped contact portion 37. A rear end portion 38 having a diameter larger than that of the central portion 35 of the locking lot 29 and smaller than that of the operation button 34 is provided.
Further, a groove 39 is provided on the fixed plate 4 side near the support piece 31 of the locking lot tip 36.
The support piece 30 and the support piece 31 are formed with a round hole 40 through which the central portion 35 of the latching lot 29 is inserted and a round hole 41 through which the tip 36 of the latching lot 29 is inserted. The locking lot 29 is always urged so that the abutting portion 37 and the support piece 31 abut.

  Reference numeral 42 denotes a hook fitting provided at a position facing the locking lot 29 on the base 8 side, and is rotatably attached to a support shaft 44 that is inserted into the shaft support piece 43 that has been cut and raised. 3 is closed, the contact piece 45 of the locking lot 29 and the hook metal fitting 42 abuts, and the hook metal fitting 42 is fixed to the shaft support piece 43 on the tip end side of the support shaft 44 and the tip of the support shaft 44. 46, which rotates against the spring 47 provided between them, and is locked to the locking lot 29 by a substantially U-shaped key-shaped engaging portion 48 at the tip. An informing portion 49 is formed in contact with the base 8 in order to prevent the rotation beyond the engaging state and to notify the completion of the locking with a sound of “click”.

  The engaging portion 48 of the hook metal fitting 42 and the groove portion 39 of the locking lot 29 are provided facing each other, and the engaging portion 48 bites into the groove portion 39 to prevent the locking lot 29 from sliding. When the base portion 8 is opened, the base portion 8 is once pressed against the fixing plate 4 side and the engaging portion 48 is removed from the groove portion 39, so that the locking lot 29 cannot be slid. Therefore, even if a child or the like mischiefs tries to slide the operation button 34, it cannot be easily opened, and the user only adds an operation of pressing the base 8 from above. The lid can be opened relatively easily.

  50 is a tank chamber provided on one side of the oil burning appliance 2, an oil receiving tray 51 is positioned below, a push-up pin 52 is erected from the substantially center, and the tank body 1 is placed upside down, Fuel oil necessary for combustion is supplied and burned in the combustion cylinder 53.

Next, after the fuel injection to the tank main body 1 is completed, an operation of closing the oil inlet cap 7 in close contact with the oil inlet 3 will be described.
After the lubrication is completed, when the base portion 8 is lightly pressed by hand to the locking lot 29 side, the distal end portion 36 of the locking lot 29 and the contact piece 45 of the hook metal fitting 42 come into contact with each other. Since 45 is inclined, the hook fitting 42 is rotated around the support shaft 44 against the spring 47 by being pushed by the locking lot 29.

When the hook fitting 42 is rotated until the contact piece 45 of the hook fitting 42 comes to the position of the distal end portion 36 of the latching lot 29, the hook fitting 42 is rotated in the reverse direction by the bias of the spring 47 to form a key shape. The groove portion 39 of the latching lot 29 engages with the engaging portion 48 of this, and the oil filler port 3 and the oil filler cap 7 are brought into close contact with each other.
At this time, the notifying part 49 of the hook metal fitting 42 comes into contact with the base 8 and emits a “click” sound to notify that the locking is completed.

Next, the operation of opening the base 8 (the lid of the oil filler port 3) from the above state will be described. First, the base 8 is pressed from the upper side to the lower side (fixed plate 4 side) with the right hand (arrow A), and the hook fitting When the engagement portion 48 of 42 and the groove portion 39 of the latching lot 29 are disengaged, the operation button 34 is pulled with the left hand (arrow B) and the latching lot 29 is slid. The distal end portion 36 of the stop lot 29 is disengaged and is opened by the action of the elastic member 28 attached to the base portion 8, and a double lock structure that uses the right hand and the left hand at the same time makes the child mischievous. Therefore, even if it tries to slide the operation button 34, it cannot be easily opened, and it is excellent in safety, and since the user only adds an operation of pressing the base 8 from above, it can be opened relatively easily. It can be covered.
Also, by opening the lid with the left hand attached to the base 8, the rotational speed of the opening can be adjusted with the left hand, and the fuel oil adhering to the tip surface of the filler cap 7 is opened because the opening force is too fast. It can also be prevented from being thrown away by.

FIG. 4 shows another embodiment. Instead of the groove 39 of the locking lot 29, a pin-like convex portion 54 is provided upright, and this convex portion 54 is engaged with the hook fitting 42. The double lock structure is formed by engaging the portion 48 to prevent the locking lot 29 from sliding.
In this embodiment, it is necessary to change the shape of the round hole 41 by notching a part of the round hole 41 so that the convex part 54 can pass through the round hole 41 of the support piece 31 when sliding. Is.

  In this way, the double lock structure that uses the right hand and the left hand at the same time is excellent in safety that cannot be easily opened even if the child tries to slide the operation button 34. And since the user only adds the operation | movement which presses the base 8 from the top, it can open a lid comparatively easily. Moreover, since it can implement only by adding the groove part 39 and the convex part 54 to the latching lot 29, it can manufacture at low cost.

DESCRIPTION OF SYMBOLS 1 Tank main body 3 Oil supply port 4 Fixing plate 7 Oil supply port cap 8 Base 25 Shaft 29 Locking lot 30/31 Support piece 39 Groove part 42 Hook metal fitting 48 Engagement part 51 Oil pan

Claims (2)

An oil cap on the base that can be raised and lowered with the shaft as a fulcrum is in close contact with the oil supply port of the tank body that is placed upside down on the oil pan and supplies fuel, and this close state is fixed on the oil supply side. A hook fitting that is held by engagement between a latching lot that is slidably supported by a pair of support pieces provided on a plate, and an engaging portion of a hook fitting provided on the base side. A groove portion is provided in the locking lot facing the engaging portion in a direction substantially perpendicular to the axial direction of the locking lot. At the same time, the engaging portion is locked to the locking lot in the substrate direction. When the base is opened, the base is pushed toward the fixed plate with one hand and engaged from the groove of the locking lot. After removing the part, slide the locking lot with the other hand and open the base part. Cartridge type oil tank - force, characterized in that a double locking means used simultaneously. An oil cap on the base that can be raised and lowered with the shaft as a fulcrum is in close contact with the oil supply port of the tank body that is placed upside down on the oil pan and supplies fuel, and this close state is fixed on the oil supply side. A hook fitting that is held by engagement between a latching lot that is slidably supported by a pair of support pieces provided on a plate, and an engaging portion of a hook fitting provided on the base side. The engaging lot facing the engaging portion is provided with a convex portion in a direction substantially perpendicular to the axial direction of the engaging lot, and the engaging portion is locked to the engaging lot in the substrate direction by the convex portion. At the same time, when locking in the axial direction of the locking lot substantially perpendicular to the substrate direction and opening the base, the base is pressed against the fixed plate side with one hand, and the convex portion of the locking lot The left and right hands open the base by sliding the locking lot with the other hand after removing the engaging part from Cartridge type oil tank - force, characterized in that a double locking means used simultaneously.

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