JPH0942158A - Fixture of oiling pump discharge part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it usable for both types that a thread part of a filler port is at the outside of an oil tank and it is at the inside in terms of structure by constituting it from a mounting member being inserted into the inside of this filler port of this oil tank and performing its lockup to the tank, and a discharge part holding member holding the discharge part of an oil pump. SOLUTION: One part of a circular elastic member 2 is connected to a discharge part holding member 5. A pressing part 3 of this elastic member 2 is pinched by fingers and forcibly pressed, thereby contracting a circular radius of this elastic member 2, and it is inserted into a tank filler port. If pinching force is loosened, this circular elastic member 2 is returned to the original size with its own elastic force, and it is pressed tight to an inner wall of the filler port. At this time, a lidge like projection of more than 7mm in length installed in at least one spot of projections 4 installed at less than two spots on a peripheral side of the elastic member 2 is engaged with a thread port of the inner wall of the filler port and thereby a vertical motion is stopped, so all directions are locked tight. With this constitution, a discharge part of a filling pump is stably securable.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a household petroleum storage
The present invention relates to an improvement in a method for fixing a discharge portion of an oil-filling pump at the time of refueling a fuel tank of a cartridge type oil tank of agricultural machinery or a fuel tank of agricultural equipment.

[0002]

2. Description of the Related Art Petroleum stoves using cartridge type petroleum tanks are commercially available from manufacturers, and refueling by manual or battery type lubrication pumps is carried out at each home. There are many inconveniences such as having to hold it by hand so that the discharge part inserted in the tank does not come off,
It is desired to develop a simple method for fixing the discharge part. Especially in the case of a battery pump with an automatic stop function,
The height position of must be fixed accurately, stably,
The need is huge. Also, when refueling agricultural equipment, such as refueling a fuel tank of a tiller, there is a problem that the discharge hose comes off the tank inlet and pollutes the surroundings, and an appropriate solution is awaited. There is.

As a method for fixing the discharge portion, a method is known in which an L-shaped clip connected to the hose is hooked on the thread groove on the outer edge of the tank inlet. For example, in Japanese Utility Model Publication No. 62-8389, it is shown as in FIG. This method is convenient because it can be used for inlets of different sizes, but as shown in FIG. 8, it can only be used for tanks of the type in which the screw portion 9 of the inlet projects to the outside. As described above, it cannot be used for the type in which the threaded portion 9 of the inlet is provided inside the tank. There are two types of commercially available oil tanks, one with a protrusion and one with a screw inside.
Little is known about the method of fixing the discharge part that can be used for both types.

According to Japanese Utility Model Laid-Open No. 62-17599, when the fuel tank of a tiller is refueled, a pair of left and right outwardly elastic legs are provided at the end of the hose and the leg is inserted into the tank inlet.
It proposes to prevent the hose from falling out. In addition, in the actual open sho 62-79980, a spring is attached so that the handle portion opens outward, a saw-shaped scissor on the back of the blade is attached to the hose, and the scissor portion is inserted into the tank inlet and opened. It is proposed to fix the hose by. Both can be used for tanks with internal screw parts, but there are only two points of contact between the spring material to be fixed and the tank, and there is no special device for joining, so fixing is unstable. It is good for the purpose of preventing looseness and hose coming off, but it is accurate and fixed like the position fixing of the liquid level sensor,
It is not practical as a fixing method that requires stability and cannot be used practically.

[0005]

SUMMARY OF THE INVENTION The present invention addresses the above situation and is convenient when refueling a cartridge type oil tank for domestic oil stoves or a fuel tank for agricultural equipment.
It is an object of the present invention to provide a fixing device for a lubrication pump discharge part which can be used both for a type in which a thread portion of an inlet is on the outside of a tank and an inside type.

[0006]

The present invention takes the following means in order to achieve the above object. That is, it is composed of a mounting member that is inserted inside the inlet of the oil tank and fixed to the tank, and a discharge portion holding member that holds the discharge portion of the oil pump, and the mounting member has an arc shape. The elastic member, a protrusion provided at two or less locations on the outer periphery of the elastic member, and a pressing portion located at the end of the elastic member, the discharge portion holding member is connected to a part of the arc-shaped elastic member, At least one protrusion has a length of 7 mm
The above-mentioned ridge-shaped projections are provided, and the projections are arranged so as to face each other with the center of the arc-shaped elastic member sandwiched therebetween, or the mounting member is an elastic member that is vertically elongated and elastically deforms, and the inside of the tank inlet. At least two tip portions to be inserted into the inlet, and a pressing portion for deforming the elastic member in a vertical plane to insert the tip into the inside of the inlet. Is provided with a concave and convex engagement with the groove of, and in a state where the pressing force to the pressing portion is released, the tip end portion is made to receive an outward elastic force to be elastically engaged with the inner peripheral surface of the inlet, , Each of the protrusions has at least two protrusions arranged in the vertical direction, and at least one groove is formed between the protrusions. Further, the height of each protrusion is lowered downward from the top. Align, and also, set the vertical radius of curvature of the tip of the protrusion. And .5mm or less, furthermore, the discharge portion holding member and the mounting member, the combined direction of the lateral opening of the two connecting, the mounting of the discharge portion is to be performed in one step from the side.

The above invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing an example of claim 1 of the present invention. The arc-shaped elastic member 2 is a spring material made of stainless steel, the end portion is bent and rises to form the pressing portion 3, and the resin protrusions 4 are formed on the arc-shaped elastic member 2 at intervals of 180 ° pitch. It is provided in some places. The cylindrical discharge portion holding member 5 is made of resin and is connected to the elastic member 2 by a connecting member 6.

The elastic member 2 is a material which is substantially elastically recovered by deformation, and may be a metal spring material such as stainless steel, or various rubbers, polyurethane elastomers, polyester elastomers, polyolefin elastomers, polyesters, polyamides, Plastics such as polyacetal, polypropylene and polyethylene may be used. By sandwiching and pressing the pressing portion 3 with a finger, the arc radius of the elastic member 2 is reduced and the elastic member 2 is inserted into the tank inlet. When the clamping force is loosened, the arcuate elastic member 2 tries to return to the original size by its own elasticity and is pressed against the inner wall of the injection port. This time,
The protrusion of the protrusion portion 4 provided on the outer periphery of the elastic member 2 is
By engaging with the thread groove on the inner wall of the inlet, the vertical movement is stopped, and the front, rear, left, right, and vertical directions are all fixed. The arc shape means an arc shape, a C shape, or a U shape, and the central angle must be 180 ° or more. For household petroleum stoves, the diameter of the circular arc is preferably 20 mm to 45 mm, more preferably 25 mm to 40 mm. The inner diameter of the inlet of a commercially available tank varies depending on the manufacturer, but the diameter is distributed in the range of 20 mm to 45 mm,
This is because most of them are around 35 mm. The thickness of the elastic member 2,
The cross-sectional shape depends on the elastic modulus of the elastic body used. Although it is soft enough to be bent by a finger, it needs to be elastically recovered to press the inner wall of the inlet and to have a fixing force that does not come off due to an external force transmitted from the hose. In the case of a stainless spring wire, the diameter is preferably in the range of 1.0 mm to 2.5 mm, more preferably 1.5 mm to 2.2 mm. In the case of rubber elastic plastics, moldability is important. It is desirable that it can be integrally molded with the protrusion 4 and the hose holder 5. The details of the shape depend on the molding procedure. Fuel tanks for agricultural equipment must be designed optimally according to their respective uses and shapes.

The projection 4 is provided with at least one projection. The protrusion engages with the thread groove of the tank inlet. For a household oil stove tank, the protrusion has a height of 0.5 mm or more and the tip has a vertical radius of curvature of 3 mm.
It is desirable that: If it is out of this range, it cannot be fixed because it does not engage with the thread groove of the tank of most of the commercially available oil stoves. The protrusions 4 are not more than two places, and at least one place is provided with a ridge-like protrusion having a length of 7 mm or more, and the protrusions are arranged so as to face each other across the center of the arc of the arc-shaped elastic member 2. If the number of protrusions is three or more, the operation of butting with the thread groove of the tank becomes troublesome, so it is preferable to set it to two or less. The protrusions must be ridged and must engage the threads over a length of at least 7 mm. If it is 7 mm or less, the fixing force becomes weak and it cannot be practically used. The ridge shape also includes a state in which two or more protrusions are continuously arranged. Further, the positions of the projections must be such that they are opposed to each other with the center of the circular base in the state where the protrusions are mounted on the tank base. "To face each other with the center of the arc in between" means "2" on the straight line passing through the center of the circle where the arc is cut out.
This means that the individual protrusions are located, and the ridge-shaped protrusion has a shape in which the ridge intersects with a straight line. In the case of one projecting portion, it is necessary to form an arc ridge-shaped projection of 180 ° or more, but it is very easy to align with the screw groove, and the fixture is easy to use.

FIG. 2 is a perspective view showing an example of claim 2 of the present invention. Discharge portion holding member 5, which is a tubular body having a C-shaped cross section
The two leg-shaped elastic members 2 connected to the upper portion of the outer peripheral surface and extending downward are made of resin, and are integrally molded with the discharge portion holding member 5. A ridge-shaped projection is provided on the tip end portion 8 of the elastic member, and the pressing portion 3 in the middle of the elastic member is pressed by a finger,
The tip portion 8 is displaced inward and can be inserted into the tank inlet. When the pressing force is released, the tip portion 8 receives the outward elastic force and is brought into close contact with the inner peripheral surface of the inlet, and the ridge-shaped projections are engaged and recessed with the thread groove of the inlet and are fixed.

The elastically deformable elastic member includes not only a single material but also a composite material. An elastic body made of metal or resin may be used alone, or, for example, as in a hair clipper, X
It also includes a combination of a shaped rod and a spring that is elastically deformed as a whole. Elastic deformation is
Done in the vertical plane. The vertical surface means a surface that is substantially parallel to the central axis of the cylindrical discharge portion holding member, and is substantially at a right angle to the deforming surface of the arcuate elastic member used in claim 1.

When there are two tip portions inserted into the inlet of the tank, it is desirable that the protrusions are ridge-shaped with a length of 7 mm or more, and they must be arranged at opposite positions with the center of the circular inlet interposed. I won't. In the case of three pieces, it is not always necessary to form a ridge, but it is desirable to arrange the projections at a pitch of 120 °. At least one of the three may be elastically deformed.

When the threaded portion 9 of the inlet is located outside the tank, the edge of the inlet 10 often overhangs so as to narrow the inlet, as shown in FIG. In such a case, in order to insert the protrusion 4 of the elastic member 2 into the injection port 10, a large deformation must be given, which may be difficult with finger force. For this type of inlet, do not engage the protrusions with the threaded groove, but rather the groove provided in the fixture and the inlet 1
It can be easily fixed by engaging with the edge protruding to 0. That is, it is possible to arrange two protrusions of the protrusion portion 4 in the vertical direction as shown in FIG. 5, form a groove between the protrusions, and engage with the edge of the injection port 10 as shown in FIG. If two or more protrusions arranged in the vertical direction are provided on each of the protrusions 4, it is possible to engage with the thread groove of the injection port, and it is also possible to engage with the edge of the injection port, which is convenient.

The number of protrusions is set to two or more, and as shown in FIG.
It will be more convenient if the heights are arranged in order from the top. That is, there is a limit to only the elastic deformation of the arcuate elastic member for the oil filling ports of various sizes with different diameters, but if several types of protrusions with different heights are provided, it will be suitable for the diameter. It is possible to insert a protrusion of height into the lubrication port and engage with the thread groove. If the groove formed between the protrusions also has a lower bottom position in order from the top,
It can also be used for small-diameter inlets of the type in which the screw portion 9 is on the outside.

When the screw portion 9 of the inlet is inside the tank, the upper end of the inlet 10 is welded to the screw member on the upper surface of the tank, but as shown schematically in FIG. You can do 7. If the protrusion of the fixture is engaged with this gap 7, it can be fixed with the minimum insertion depth, and unlike the engagement with the screw groove, it can be fixed within the same horizontal plane, and the discharge part can be fixed straight. You can do it. In the engagement with the screw groove, since the groove is slanted, each projection cannot engage with the groove in the horizontal plane, and the fixed discharge portion is likely to be slightly inclined. In the case of a domestic oil stove, the width of the gap 7 is 1 mm or less. The radius of curvature in the vertical direction of the tip of the protrusion of the fixture is preferably 0.5 mm or less.

The discharge part holding member 5 is not particularly limited.
Cylindrical or C-shaped cross-section body into which the discharge part is inserted, 2
It is possible to use a member that is split and sandwiched from both sides, and so on. In the case of the lubrication pump with the automatic stop function equipped with the liquid level sensor, it is necessary to set the height according to the shape of the tank, so that it can slide between the discharge part holding member 5 and the discharge part. It is better to adjust the position. A cylindrical body made of an elastic resin having a C-shaped cross section is suitable.

As shown in FIGS. 1 and 2, the discharge portion holding member 5 is a cylindrical body having a C-shaped cross section, and the direction of the opening surface is made to coincide with the direction of the opening surface of the mounting member 1, so that the discharge portion holding member 5 is formed. It is desirable that the discharge part can be attached to the side surface in one step. In general, the diameter of the tip of the discharge portion is often large, and it is difficult to insert it into a cylindrical holding member.
Combined with a mounting member that uses an elastic force that can take an opening space, if it can be mounted and removed from the side, it is extremely useful when assembling and when adjusting the height of the liquid level sensor in a pump with an automatic stop function. It is convenient for The width of the space that passes through the discharge part is required to be about 10 mm to 20 mm.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

First Embodiment FIG. 1 is a perspective view showing an embodiment according to claim 1 of the present invention. A 1.5 mm diameter stainless steel spring wire is bent to form an arc-shaped elastic member 2 having a diameter of 34 mm and a central angle of 270 °.
Was formed, and the end portion was raised at a right angle and sandwiched by fingers to form a pressing portion 3. Two protrusions 4 are provided on the arc-shaped wire at a pitch of 180 °, and one protrusion is provided on each protrusion.
It protruded to the outside of the arc in the radial direction. The height of the protrusion is about 3 m
m, the vertical radius of curvature of the tip is about 1 mm, and is a horizontally long ridge-shaped protrusion having a horizontal length of 10 mm. The discharge part holding member 5 has an inner diameter of 15 mm, a length of 30 mm, and a thickness of 2 m.
m is a cylindrical body having a C-shaped cross section having a circular arc with a central angle of 270 °. The discharge part holding member 5, the connecting member 6 and the protrusion 4 were formed by machining a PVC material, and were bonded to the arcuate elastic member 2 of the stainless wire using an adhesive.
The discharge hose end of a domestic manual lubrication pump is inserted through the side opening of the tubular discharge part holding member 5 having a C-shaped section and having a width of about 11 mm, and the pressing part 3 is pressed with a finger to press the circle. The arc-shaped elastic member 2 was reduced and inserted into the inlet of a domestic oil stove tank. The screw part 9 that fits with the lid of the inlet is shown in FIG.
Inlet 1 with a diameter of 36 mm inside the tank like
It was possible to firmly fix the hose to the tank of No. 0 and the tank of the injection port 10 having a diameter of 33 mm outside the tank as shown in FIG. .

Second Embodiment The cross section is 3 mm square, the central angle is 240 °, and the inner diameter is 32.
mm-shaped elastic member with a height of 1 m on the entire outer peripheral surface
m m ridges were provided. The other shapes are the same as those in the first embodiment. All fixing materials are polyester elastomers (Toyobo Co., Ltd., registered trademark Perprene)
Was used. A mounting test was conducted on the same two types of tanks used in the first embodiment, and it was possible to stably fix them to both tanks.

Third Embodiment FIG. 2 is a perspective view showing an embodiment of the second claim. C
An elongated elastic member 2 extends downward from both upper sides of a discharge portion holding member 5 which is a tubular body having a shaped cross section, and one ridge-shaped projection 6 mm in height is laterally provided outside the tip portion 13 respectively. It is provided. The elastic member 2 has a thickness of 2 mm and a width of 7 mm, and is integrally molded with the discharge portion holding member 5 using polyethylene. The distance between the tips of the projections on each of the two tip portions 8 is 46 mm, but the pressing portion 3 is deformed inward by pressing it with a finger, and the screw portion has a diameter of 36 mm and the screw portion is inside the tank. When the pressing force is released, the tip portion 8 receives the elastic force to the outside and comes into close contact with the inner peripheral surface of the inlet, and the ridge-shaped projections engage with the thread groove on the inner peripheral surface of the inlet unevenly to form an oil pump. The discharge part of was able to be fixed.

Fourth Embodiment An ejector fixing tool which is the same as that of the third embodiment is manufactured except that the protrusion 4 is changed as shown in FIG. The protrusion 4 has two protrusions arranged in the vertical direction, and a groove is formed between them. The height of the protrusions is 3 mm, the distance between the protrusions in the vertical direction is 4 mm, and the height of the groove portion in the vertical direction is 3 mm. The tip of each protrusion has a vertical radius of curvature of 0.
It has a ridge shape of 4 mm and 12 mm in the horizontal direction. The discharge portion of the battery-operated pump with the automatic stop function was inserted into the discharge portion holding member 5 from the side, and an attempt was made to fix the household oil stove to the tank inlet. As shown in FIG. 9, with respect to the inlet 10 which is recessed inward, the lower protrusion of the protrusion 4 is inserted into the gap 7 of the welded portion at the upper end, and as shown in FIG. On the other hand, the groove formed between the two protrusions of the protrusion 4 was fixed to the bent edge of the upper end of the tank. In any case, while the pump was refueling, the discharge part was stably held, and refueling was normally continued until the pump was automatically stopped by the operation of the liquid level sensor.

Fifth Embodiment In the first embodiment, the entire structure is made of resin, and the arcuate elastic member 2 and the protrusion 4 are changed as follows. That is, as shown in FIG. 6, the two protrusions 4 are provided with three protrusions arranged vertically. In Figure 6, the height of the protrusion measured from the left side is 7mm at the top and 5m at the second.
m, the bottom is 3 mm, the pitch between the vertical projections is 4.5 mm, the groove depth is 1 mm, and the vertical curvature radius of each projection tip is 0.4 mm. The length of the protrusion 4 is 10 mm
It is. The longitudinal section of the arcuate elastic member 2 having a diameter of 30 mm is a rectangle having a length of 5 mm and a width of 2 mm, and its inner peripheral surface is the left side of the protrusion 4 in FIG. When we tried to fix the discharge part to the concave inlets with different diameters, we found that the uppermost protrusion was 3 mm for the inlet with an inner diameter of 36 mm.
By inserting the second one for the 2 mm inlet and the lowest protrusion for the 28 mm inner diameter into the inlet and engaging with the screw groove, the discharge part could be stably fixed. .

[0024]

As described above, according to the discharge part fixing device of the present invention, it is possible to apply the oil supply pump to the tank of the type in which the injection port projects outward and the tank of the type recessed inward. The discharge part can be fixed stably. The operation is simple and convenient when refueling a cartridge tank of a domestic oil stove or a fuel tank of an agricultural implement. In particular, when used in a battery-operated pump with an automatic stop function, it is useful because the height position of the liquid level sensor can be accurately set. Also, even if the pump does not have an automatic stop function,
By fixing the liquid meter such as the float together with the end of the hose, it is possible to surely confirm the full amount before stopping the pump. It can also be used to fix only a liquid meter such as a float.
Further, since the discharge part of the oil supply pump can be easily mounted from the side of the fixture, workability such as assembling the pump and adjusting the height position of the liquid level sensor is significantly improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of claim 1 of the present invention.

FIG. 2 is a perspective view showing an embodiment of claim 2 of the present invention.

FIG. 3 is a vertical cross-sectional view showing a mounting example of the present invention.

FIG. 4 is a vertical cross-sectional view showing another mounting example of the present invention.

FIG. 5 is a vertical cross-sectional view showing an example of a protrusion of the present invention.

FIG. 6 is a vertical cross-sectional view showing another example of the protrusion of the present invention.

FIG. 7 is a vertical cross-sectional view showing an example of a conventional technique.

FIG. 8 is a vertical sectional view showing an example of an inlet of an oil tank.

FIG. 9 is a vertical cross-sectional view showing another example of the inlet of the oil tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mounting member 2 Elastic member 3 Pressing part 4 Projection part 5 Discharging part holding member 6 Connecting member 7 Gap 8 Tip part 9 Screw part 10 Injection port 11 Clip

Claims (6)

[Claims] 1. A mounting member (1) which is inserted into an inlet of an oil tank and fixed to the tank,
The mounting member (1) is composed of a discharge part holding member (5) that holds the discharge part of the oil pump, and the mounting member (1) is an arc-shaped elastic member (2) and protrusions provided at two or less locations on the outer periphery thereof. (4) and a pressing part (3) located at the end of the elastic member (2), and the discharge part holding member (5) is connected to a part of the arcuate elastic member (2). In the fixture of the pump discharge part, a ridge-shaped protrusion having a length of 7 mm or more is provided at least at one position of the protrusion (4) so as to face each other with the center of the arc of the arc-shaped elastic member (2) interposed therebetween. An individual tool for the discharge part of the lubrication pump, which is characterized in that a protrusion is arranged on the. 2. An attachment member (1) which is inserted into an inlet of an oil tank and fixed to the tank,
The discharge member holding member (5) for holding the discharge unit of the oil pump is provided, and the mounting member (1) is connected to a part of the discharge unit holding member (5) and is elastic in a vertically long and slender shape. A deformable elastic member (2), at least two tips (8) inserted into the inlet of the tank, and an elastic member (2) in a vertical plane for inserting the tips (8) into the inlet. And a protrusion (4) that engages with the groove on the inner peripheral surface of the injection port in a concavo-convex manner at the tip (8). A fixture for a lubrication pump discharge part, characterized in that the tip portion (8) is subjected to an outward elastic force in a state where the pressure is released to elastically engage with the inner peripheral surface of the inlet. 3. The protrusion (4) is characterized in that at least two protrusions are arranged in the vertical direction and at least one groove is formed between them. Fixing device for the oil pump discharge part described in. 4. The at least two protrusions of the protrusions (4) are arranged in the vertical direction so that the height becomes lower from the upper side to the lower side. The fixture for the discharge part of the lubrication pump according to any one of 1. 5. The fixing device for the oil pump discharge part according to claim 1, wherein the protrusions (4) have a tip having a vertical curvature radius of 0.5 mm or less. . 6. A discharge part holding member (5) for holding a discharge part of an oil pump, and an attachment member (1) which is brought into close contact with and engages with an inner peripheral surface of an inlet of an oil tank by elastic force,
Both are discharge part holding members (5) which are tubular bodies having a C-shaped cross section.
The side opening surface of the mounting member (1) and the side opening surface of the mounting member (1) are connected to each other so that the discharging portion can be mounted to the discharging portion holding member in one step from the side. Fixing device for the discharge part of the lubrication pump.