JP2015093723A - Adiabatic fuel carrying container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuel carrying container which can be easily produced and which is excellent in adiabaticity.SOLUTION: A fuel carrying container has a double structure consisting of a metal inner container 20 and a metal outer container 30 and has a sealed air space 40 between the inner container 20 and the outer container 30. Further, the inner container 20 and the outer container 30 are formed to be collectively joined at the peripheral edge parts of each half-split container having a flange-like peripheral edge part and then production steps are simplified and the displacement of positional relationship between the inner container 20 and the outer container 30 due to the weight and vibration of a stored fuel is made small.

Description

  The present invention relates to a metal heat insulating fuel carrying container for carrying fuel such as gasoline.

A metal fuel carrying container is manufactured by processing a metal plate into a can shape. And in order to ensure the strength of the container, a cold rolled steel sheet having a thickness of about 0.8 mm is generally used, and many of them have an upper container and a lower container manufactured separately to reduce the manufacturing cost. Are joined to each other.
In particular, Japanese Patent Application Laid-Open No. 2002-274543 (hereinafter referred to as “Patent Document 1”) discloses that a single container is formed by joining upper and lower halved containers having the same shape at their peripheral edges in order to reduce manufacturing costs. A fuel carrying container is disclosed.

JP 2002-274543

However, the fuel carrying container of Patent Document 1 cannot exhibit a sufficient heat insulating effect. That is, such a fuel carrying container formed of a single steel plate has a surface temperature of 60 ° C. or more when left for a long time under the hot summer sun. Then, the internal pressure of the carrying container increases due to the temperature rise, and when the fuel supply base is opened without reducing the pressure as it is, the internal pressure in the fuel carrying container decreases rapidly at that moment. As a result, the fuel boils all at once and spouts out vigorously.
In order to alleviate this phenomenon, the fuel carrying container is provided with an internal pressure adjusting screw. However, if the internal temperature is high, there is a problem that this internal pressure adjustment takes time. It is also assumed that the internal pressure adjustment itself is neglected.
In particular, if the fuel is gasoline, it boils in the range of 30 to 220 degrees, so this phenomenon occurs even at lower temperatures. If fuel is supplied without adjusting the internal pressure in an environment where there is a fire source nearby, it will be a catastrophe in an instant. Therefore, when gasoline is replenished from an existing fuel carrying container to an internal combustion engine such as a generator under hot weather, there is always such a risk.

  Therefore, an object of the present invention is to provide a fuel carrying container that can be easily manufactured and has excellent heat insulation.

  In order to achieve the above object, the heat-insulating fuel carrying container according to the first aspect of the present invention has a double structure comprising a metal inner container and a metal outer container, and air is interposed between the inner container and the outer container. The structure was provided with a layer.

  That is, the first aspect of the present invention is a metal heat-insulating fuel carrying container, comprising an inner container, an outer container for enclosing the inner container, a fixing means for mechanically fixing the inner container and the outer container, A container main body having a sealed air layer between the inner container and the outer container; a fuel supply cap provided at an upper portion of the container main body; and an internal pressure adjusting screw provided at an upper portion of the container main body. This is a heat-insulating fuel carrying container.

  In the heat insulating fuel carrying container according to the first aspect of the present invention, an air layer exists between the inner container for storing the fuel and the outer container that directly contacts the outside air. And this air layer exhibits a heat insulation effect.

  Thermal insulation performance is compared by thermal conductivity (W / (m · K)). Generally, thermal conductivity of less than 0.1 (W / (m · K)) is used as thermal insulation. The Air has an extremely low thermal conductivity of 0.023 (W / (m · K)), and the heat insulation effect is about twice that of glass wool or polystyrene foam.

  Further, the inner container and the outer container are mechanically fixed by fixing means so that the width of the air layer is ensured to be constant and the inner container is not shaken by the weight of the fuel. As the fixing means, a heat insulating material such as wood or polyethylene is formed in a block shape and arranged between the inner container and the outer container, and a means for adhering both contact surfaces can be considered.

  Further, according to a second aspect of the present invention, the inner container according to the first aspect of the present invention comprises a pair of upper and lower inner half containers and a lower inner half container, the upper inner half container and the lower inner container. The half container is joined at the periphery thereof, and the outer container in the first aspect of the present invention comprises a pair of upper and lower upper outer half containers and a lower outer half container. The half-contained container and the lower outer half-contained container are joined at their peripheral edge portions.

  In this way, by making each of the inner container and the outer container into half containers, the half container itself can be easily manufactured. Since the heat insulating fuel carrying container is formed simply by joining the parts, the manufacturing process is simplified.

  Further, according to the third aspect of the present invention, the fixing means for mechanically fixing the inner container and the outer container in the second aspect of the present invention includes an upper inner container, a lower inner container, an upper outer container, and a lower outer container. The shape of all the peripheral parts is brim, and the peripheral parts of the upper inner container and the lower inner container are joined together in a form sandwiched by the peripheral parts of the upper outer container and the lower outer container. It is a heat insulating fuel carrying container characterized by being realized.

  Thus, the manufacturing process is simplified by joining four half-contained containers at the same place at the same time. In addition, the inner container is fixed to the outer container over the entire periphery, and variations in the inner container with respect to the outer container due to the weight and vibration of the stored fuel can be kept small.

  Furthermore, a fourth aspect of the present invention is the heat insulating fuel carrying container, wherein the thickness of the air layer in any one of the first to third aspects of the present invention is 6 mm to 30 mm.

  As described above, air is an excellent heat insulating material. Therefore, it seems that the heat insulation effect is improved as the air layer is thickened. However, if the air layer is made too thick, heat transfer occurs due to air convection, and the heat insulation effect is not further improved. On the other hand, air has viscosity, and an air portion having a certain thickness from the wall surface has a characteristic that it sticks to the wall surface due to the viscosity and does not move. Because of these properties of air, the heat insulation effect is highest when the thickness of the air layer is 6 mm to 30 mm.

  Furthermore, a fifth invention is the invention according to any one of the first to fourth inventions, wherein a clasp for housing the fuel supply nozzle in the container body, a handle on the upper surface of the container body, and a bottom part of the container body. The heat-insulating fuel carrying container is characterized in that a plurality of foot portions including convex portions are provided.

Since a fuel supply nozzle separate from the fuel carrying container can be accommodated in the clasp of the fuel supply nozzle, the fuel supply nozzle can always be attached to the fuel carrying container and carried. Further, since the upper surface of the container body has a handle, the container body can be held with one hand when the container body is carried or when fuel is supplied.
Furthermore, since the foot is at the bottom of the container body, the entire bottom of the container is not grounded.

  The heat insulating fuel carrying container of the present invention can be easily manufactured, and can exhibit an excellent heat insulating effect.

The perspective view which shows the heat insulation fuel carrying container which concerns on 1st embodiment of this invention. Sectional view near the center of the thermal insulating fuel carrying container The perspective view which shows the heat insulation fuel carrying container which concerns on 2nd embodiment of this invention. Rear view of the heat insulating fuel carrying container AA line sectional view in FIG. 4 of the heat insulating fuel carrying container

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 5 show an embodiment of the present invention. In the drawings, the same reference numerals denote the same components.

First, the configuration of the heat insulating fuel carrying container according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. The heat insulating fuel carrying container shown in FIG. 1 is a metal container for carrying liquid fuel such as gasoline, light oil, and kerosene, and has a cylindrical shape as shown.
The inner container 20 is formed by joining a top plate and a bottom plate whose circumferential portion is processed in a U-shape to a metal cylinder. An outer container 30 is formed so as to enclose the inner container 20. The structure of the outer container 30 is the same as the structure of the inner container 20.
A sealed air layer 40 is formed between the inner container 20 and the outer container 30. The thickness of the air layer 40 is preferably 6 mm to 30 mm. This is because air convection does not occur and an excellent heat insulating effect is achieved.

A spacing member 50 (fixing means) having a block-like heat insulating property is disposed between the inner container 20 and the outer container 30, and the positional relationship between the inner container 20 and the outer container 30 varies depending on the weight and vibration of the fuel. It is preventing. As the spacing member 50 having heat insulation, a solid having heat insulation using wood, rock wool or the like can be used.

  A fuel supply base 12 and an internal pressure adjusting screw 14 are provided on the upper surface of the container body 10. Both the fuel supply cap 12 and the internal pressure adjusting screw 14 penetrate from the outer side of the outer container 30 to the inner side of the inner container 20. The internal pressure adjusting screw 14 has a structure in which the amount of ventilation between the inside of the inner container 20 and the outside of the outer container 30 increases according to the amount of loosening.

  Further, the inner surface of the inner container 20 is painted so as to withstand long-term use without harming the quality of the fuel. Epoxy resin paints using titanium oxide as a pigment are preferred.

  Next, 2nd embodiment of this invention is described using FIGS.

FIG. 3 is a perspective view of a heat insulating fuel carrying container according to the second embodiment of the present invention. The external appearance is the same as that of a general fuel carrying container, and a fuel supply base 12, a handle 18, and a clasp 16 for accommodating the fuel supply nozzle 70 are arranged on the upper part of the container body 10.
By having the clasp 16 of the fuel supply nozzle 70 separate from the heat insulating fuel carrying container of the present invention, the fuel supply nozzle 70 can always be attached to the fuel carrying container and carried. Further, since the handle 18 is provided, it can be easily carried with one hand.

FIG. 4 is a rear view of the heat insulating fuel carrying container according to the second embodiment of the present invention. Similar to a general fuel carrying container, an internal pressure adjusting screw 14 is arranged on the upper part of the container body 10. The function of the internal pressure adjusting screw 14 is as described above. A foot 60 is provided at the bottom of the container body 10.
The foot 60 can be formed by adhering rubber, urethane, or the like. However, a part of the bottom of the container body 10 can be formed in a convex shape so as to be integrated with the bottom.

  FIG. 5 is a cross-sectional view taken along line AA in FIG. That is, it is a figure which shows the cross section of the right side surface vicinity of the heat insulation fuel carrying container which concerns on 2nd embodiment. Four halved containers are joined together at the periphery. An air layer 40 is formed between the inner container 20 and the outer container 30.

The upper inner half container 22 and the lower inner half container 24 each have a collar-shaped upper inner half container peripheral part 23 and a lower inner half container peripheral part 25, and the inner half part container 25 and the inner half part container 25 are aligned together. A container 20 is formed. In addition, the upper outer half container 32 and the lower outer half container 34 are formed on the inner container with a flange-shaped joint portion formed by connecting the upper outer half container peripheral part 33 and the lower outer half container peripheral part 35. And are joined at the same location so as to be sandwiched between them.
With this structure, the lower inner half container 25 is stacked on the lower outer half container 35, the upper inner half container 23 is further stacked thereon, and the upper outer half container 33 is further stacked thereon. A double structure heat-insulating fuel carrying container can be easily manufactured simply by joining the peripheral portions of the collars at the same time.

And since all the peripheral parts of the four half containers are joined at the same location, the effect of preventing fluctuations in the positional relationship between the inner container 20 and the outer container 30 due to the weight and vibration of the fuel becomes significant.
In addition, the thickness of the air layer 40 is preferably 6 mm to 30 mm as in the first embodiment.

  In addition, the flange joint 52 protruding from the container body 10 may be protected by being covered with rubber or urethane resin.

10 Container body
DESCRIPTION OF SYMBOLS 12 Fuel supply port part 14 Internal pressure adjustment screw 16 Clasp 18 Handle 20 Inner container 22 Upper inner half container 23 Upper inner half container peripheral part 24 Lower inner half container 25 Lower inner half container peripheral part 30 Outer container 32 Upper outer half container 33 Upper outer half container peripheral part 34 Lower outer half container 35 Lower outer half container peripheral part 40 Air layer 50 Spacing material (fixing means)
52 collar joint (fixing means)
60 feet 70 fuel supply nozzle

  The present invention relates to a metal heat insulating fuel carrying container for carrying fuel such as gasoline.

A metal fuel carrying container is manufactured by processing a metal plate into a can shape. And in order to ensure the strength of the container, a cold rolled steel sheet having a thickness of about 0.8 mm is generally used, and many of them have an upper container and a lower container manufactured separately to reduce the manufacturing cost. Are joined to each other.
In particular, Japanese Patent Application Laid-Open No. 2002-274543 (hereinafter referred to as “Patent Document 1”) discloses that a single container is formed by joining upper and lower halved containers having the same shape at their peripheral edges in order to reduce manufacturing costs. A fuel carrying container is disclosed.

JP 2002-274543

However, the fuel carrying container of Patent Document 1 cannot exhibit a sufficient heat insulating effect. That is, such a fuel carrying container formed of a single steel plate has a surface temperature of 60 ° C. or more when left for a long time under the hot summer sun. Then, the internal pressure of the carrying container increases due to the temperature rise, and when the fuel supply base is opened without reducing the pressure as it is, the internal pressure in the fuel carrying container decreases rapidly at that moment. As a result, the fuel boils all at once and spouts out vigorously.
In order to alleviate this phenomenon, the fuel carrying container is provided with an internal pressure adjusting screw. However, if the internal temperature is high, there is a problem that this internal pressure adjustment takes time. It is also assumed that the internal pressure adjustment itself is neglected.
In particular, if the fuel is gasoline, it boils in the range of 30 to 220 degrees, so this phenomenon occurs even at lower temperatures. If fuel is supplied without adjusting the internal pressure in an environment where there is a fire source nearby, it will be a catastrophe in an instant. Therefore, when gasoline is replenished from an existing fuel carrying container to an internal combustion engine such as a generator under hot weather, there is always such a risk.

  Therefore, an object of the present invention is to provide a fuel carrying container that can be easily manufactured and has excellent heat insulation.

  In order to achieve the above object, the heat-insulating fuel carrying container according to the first aspect of the present invention has a double structure comprising a metal inner container and a metal outer container, and air is interposed between the inner container and the outer container. The structure was provided with a layer.

That is, the first aspect of the present invention is provided on the upper part of the container body and the container body having an inner container, an outer container enclosing the inner container, and a sealed air layer between the inner container and the outer container. A metal heat insulating fuel carrying container provided with a fuel supply cap portion penetrating the outer container and the inner container, and an internal pressure adjusting screw penetrating the outer container and the inner container. The inner container is composed of a pair of upper and lower upper inner half containers and a lower inner half container, and the upper inner half container and the lower inner half container are their peripheral edges. And the outer container comprises a pair of upper and lower upper half containers and a lower outer half container, the upper outer half container and the lower outer half container, Are joined at the periphery of the The inner half container for the upper part, the inner half container for the lower part, the outer half container for the upper part and the outer half part container for the lower part are all in the shape of a collar, and the inner half part for the upper part The peripheral edge of the container and the lower inner half container are simultaneously joined in a form sandwiched between the upper outer half container and the lower outer half container, and the inner container is connected to the outer container. A heat-insulating fuel carrying container that contacts only a peripheral edge, the fuel supply cap, and the internal pressure adjusting screw .

In the heat insulating fuel carrying container according to the first aspect of the present invention, an air layer exists between the inner container for storing the fuel and the outer container that directly contacts the outside air. And this air layer exhibits a heat insulation effect.
Thermal insulation performance is compared by thermal conductivity (W / (m · K)). Generally, thermal conductivity of less than 0.1 (W / (m · K)) is used as thermal insulation. The Air has an extremely low thermal conductivity of 0.023 (W / (m · K)), and the heat insulation effect is about twice that of glass wool or polystyrene foam.

Further, the inner container and the outer container, while securing the width of the air layer constant, so as not shake the inner side container by the weight of the fuel, are joined at the periphery of the inner container and outer container. The inner container is in contact with only the outer container, the fuel supply base that penetrates the inner container, and the internal pressure adjusting screw except for the peripheral edge.

By making each of the inner and outer containers into half containers, it is easy to manufacture the half container itself, and when assembling the half container, the upper and lower half containers are stacked one above the other and their peripheral parts are joined. only a thermally insulating fuel carried container is formed, also by joining the four half containers simultaneously in the same place, the manufacturing process is simplified. In addition, the inner container is fixed to the outer container over the entire periphery, and variations in the inner container with respect to the outer container due to the weight and vibration of the stored fuel can be kept small.

Furthermore, the second aspect of the present invention is a heat insulating fuel carrying container, wherein the thickness of the air layer in the first aspect of the present invention is 6 mm to 30 mm.

  As described above, air is an excellent heat insulating material. Therefore, it seems that the heat insulation effect is improved as the air layer is thickened. However, if the air layer is made too thick, heat transfer occurs due to air convection, and the heat insulation effect is not further improved. On the other hand, air has viscosity, and an air portion having a certain thickness from the wall surface has a characteristic that it sticks to the wall surface due to the viscosity and does not move. Because of these properties of air, the heat insulation effect is highest when the thickness of the air layer is 6 mm to 30 mm.

Furthermore, the third aspect of the present invention is the first or second aspect of the present invention, comprising a clasp for housing the fuel supply nozzle in the container body, a handle on the upper surface of the container body, and a convex portion on the bottom of the container body. A heat insulating fuel carrying container characterized in that a plurality of legs are provided.

Since a fuel supply nozzle separate from the fuel carrying container can be accommodated in the clasp of the fuel supply nozzle, the fuel supply nozzle can always be attached to the fuel carrying container and carried. Further, since the upper surface of the container body has a handle, the container body can be held with one hand when the container body is carried or when fuel is supplied.
Furthermore, since the foot is at the bottom of the container body, the entire bottom of the container is not grounded.

  The heat insulating fuel carrying container of the present invention can be easily manufactured, and can exhibit an excellent heat insulating effect.

The perspective view which shows the heat insulation fuel carrying container which concerns on one Embodiment of this invention. Rear view of the heat insulating fuel carrying container Cross section of the heat insulating fuel carrying container

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 3 show an embodiment of the present invention. In the drawings, the same reference numerals denote the same parts.

FIG. 1 is a perspective view of a heat insulating fuel carrying container according to an embodiment of the present invention. The external appearance is the same as that of a general fuel carrying container, and a fuel supply base 12, a handle 18, and a clasp 16 for accommodating the fuel supply nozzle 70 are arranged on the upper part of the container body 10. Both the fuel supply cap 12 and the internal pressure adjusting screw 14 penetrate from the outer side of the outer container 30 to the inner side of the inner container 20. The internal pressure adjusting screw 14 has a structure in which the amount of ventilation between the inside of the inner container 20 and the outside of the outer container 30 increases according to the amount of loosening.
By having the clasp 16 of the fuel supply nozzle 70 separate from the heat insulating fuel carrying container of the present invention, the fuel supply nozzle 70 can always be attached to the fuel carrying container and carried. Further, since the handle 18 is provided, it can be easily carried with one hand.

Figure 2 is a rear view of the heat-insulating fuel carrying container according to an embodiment of the present invention. Similar to a general fuel carrying container, an internal pressure adjusting screw 14 is arranged on the upper part of the container body 10. The function of the internal pressure adjusting screw 14 is as described above. A foot 60 is provided at the bottom of the container body 10.
The foot 60 can be formed by adhering rubber, urethane, or the like. However, a part of the bottom of the container body 10 can be formed in a convex shape so as to be integrated with the bottom.

FIG. 3 is a view showing a cross section near the right side surface of the heat insulating fuel carrying container according to the embodiment of the present invention . Four halved containers are joined together at the periphery. An air layer 40 is formed between the inner container 20 and the outer container 30. The inner container 20 is in contact only with the collar joint 52, the fuel supply base 12 and the internal pressure adjusting screw 14.

The upper inner half container 22 and the lower inner half container 24 each have a collar-shaped upper inner half container peripheral part 23 and a lower inner half container peripheral part 25, and the inner half part container 25 and the inner half part container 25 are aligned together. A container 20 is formed. In addition, the upper outer half container 32 and the lower outer half container 34 are formed on the inner container with a flange-shaped joint portion formed by connecting the upper outer half container peripheral part 33 and the lower outer half container peripheral part 35. And are joined at the same location so as to be sandwiched between them.
With this structure, the lower inner half container 25 is stacked on the lower outer half container 35, the upper inner half container 23 is further stacked thereon, and the upper outer half container 33 is further stacked thereon. A double structure heat-insulating fuel carrying container can be easily manufactured simply by joining the peripheral portions of the collars at the same time.

And since all the peripheral parts of the four half containers are joined at the same location, the effect of preventing fluctuations in the positional relationship between the inner container 20 and the outer container 30 due to the weight and vibration of the fuel becomes significant.
The thickness of the air layer 40 is preferably 6 mm to 30 mm. This is because air convection does not occur and an excellent heat insulating effect is achieved.

  In addition, the flange joint 52 protruding from the container body 10 may be protected by being covered with rubber or urethane resin.

10 Container body
12 fuel supply port gold section 14 inner pressure adjusting screw 16 clamps 18 handle 20 inner container 22 top for the inner half container 23 top for the inner half container periphery 24 lower for the inner half container 25 bottom for the inner half container periphery 30 Outer container 32 Upper outer half container 33 Upper outer half container peripheral part 34 Lower outer half container 35 Lower outer half container peripheral part 40 Air layer 52 Collar joint part 60 Foot part 70 Fuel supply nozzle

Claims (5)

  A metal heat-insulating fuel carrying container, an inner container, an outer container for enclosing the inner container, a fixing means for mechanically fixing the inner container and the outer container, the inner container and the outer container, A container main body having a sealed air layer therebetween, a fuel supply cap provided at the upper part of the container main body, and an internal pressure adjusting screw provided at the upper part of the container main body. Insulating fuel carrying container.   The inner container is composed of a pair of upper and lower inner half containers and a lower inner half container, and the upper inner half container and the lower inner half container are joined at their peripheral portions. The outer container is composed of a pair of upper and lower upper outer half containers and a lower outer half container, and the upper outer half container and the lower outer half container are their peripheral parts. The heat-insulating fuel carrying container according to claim 1, wherein the container is joined by a heat-resistant fuel. The inner peripheral container for the inner upper part, the inner container for the lower part, the outer container for the upper part and the outer peripheral container for the lower part are all in the shape of a collar, and the inner container for the upper part and the inner container for the lower part The heat-insulating fuel carrying container according to claim 2, wherein the fixing means is such that a peripheral portion is simultaneously joined in a form sandwiched between peripheral portions of the upper outer container and the lower outer container.   The heat-insulating fuel carrying container according to any one of claims 1 to 3, wherein a thickness of the air layer is 6 mm to 30 mm. 2. A clasp for accommodating a fuel supply nozzle in the container main body, a handle on the upper surface of the container main body, and a plurality of feet made of convex portions on the bottom of the container main body. The heat insulating fuel carrying container of any one of -4.

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